1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3 * Copyright (C) 2012-2014, 2018-2019, 2021-2025 Intel Corporation
4 * Copyright (C) 2013-2014 Intel Mobile Communications GmbH
5 * Copyright (C) 2015-2017 Intel Deutschland GmbH
6 */
7 #include <linux/kernel.h>
8 #include <linux/module.h>
9 #include <linux/slab.h>
10 #include <linux/etherdevice.h>
11
12 #include <net/mac80211.h>
13
14 #include "iwl-debug.h"
15 #include "mvm.h"
16 #include "iwl-modparams.h"
17 #include "fw/api/power.h"
18
19 #define POWER_KEEP_ALIVE_PERIOD_SEC 25
20
21 static
iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm * mvm,struct iwl_beacon_filter_cmd * cmd)22 int iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm *mvm,
23 struct iwl_beacon_filter_cmd *cmd)
24 {
25 u16 len;
26
27 IWL_DEBUG_POWER(mvm, "ba_enable_beacon_abort is: %d\n",
28 le32_to_cpu(cmd->ba_enable_beacon_abort));
29 IWL_DEBUG_POWER(mvm, "ba_escape_timer is: %d\n",
30 le32_to_cpu(cmd->ba_escape_timer));
31 IWL_DEBUG_POWER(mvm, "bf_debug_flag is: %d\n",
32 le32_to_cpu(cmd->bf_debug_flag));
33 IWL_DEBUG_POWER(mvm, "bf_enable_beacon_filter is: %d\n",
34 le32_to_cpu(cmd->bf_enable_beacon_filter));
35 IWL_DEBUG_POWER(mvm, "bf_energy_delta is: %d\n",
36 le32_to_cpu(cmd->bf_energy_delta));
37 IWL_DEBUG_POWER(mvm, "bf_escape_timer is: %d\n",
38 le32_to_cpu(cmd->bf_escape_timer));
39 IWL_DEBUG_POWER(mvm, "bf_roaming_energy_delta is: %d\n",
40 le32_to_cpu(cmd->bf_roaming_energy_delta));
41 IWL_DEBUG_POWER(mvm, "bf_roaming_state is: %d\n",
42 le32_to_cpu(cmd->bf_roaming_state));
43 IWL_DEBUG_POWER(mvm, "bf_temp_threshold is: %d\n",
44 le32_to_cpu(cmd->bf_temp_threshold));
45 IWL_DEBUG_POWER(mvm, "bf_temp_fast_filter is: %d\n",
46 le32_to_cpu(cmd->bf_temp_fast_filter));
47 IWL_DEBUG_POWER(mvm, "bf_temp_slow_filter is: %d\n",
48 le32_to_cpu(cmd->bf_temp_slow_filter));
49 IWL_DEBUG_POWER(mvm, "bf_threshold_absolute_low is: %d, %d\n",
50 le32_to_cpu(cmd->bf_threshold_absolute_low[0]),
51 le32_to_cpu(cmd->bf_threshold_absolute_low[1]));
52
53 IWL_DEBUG_POWER(mvm, "bf_threshold_absolute_high is: %d, %d\n",
54 le32_to_cpu(cmd->bf_threshold_absolute_high[0]),
55 le32_to_cpu(cmd->bf_threshold_absolute_high[1]));
56
57 if (fw_has_api(&mvm->fw->ucode_capa,
58 IWL_UCODE_TLV_API_BEACON_FILTER_V4))
59 len = sizeof(struct iwl_beacon_filter_cmd);
60 else
61 len = offsetof(struct iwl_beacon_filter_cmd,
62 bf_threshold_absolute_low);
63
64 return iwl_mvm_send_cmd_pdu(mvm, REPLY_BEACON_FILTERING_CMD, 0,
65 len, cmd);
66 }
67
68 static
iwl_mvm_beacon_filter_set_cqm_params(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_beacon_filter_cmd * cmd)69 void iwl_mvm_beacon_filter_set_cqm_params(struct iwl_mvm *mvm,
70 struct ieee80211_vif *vif,
71 struct iwl_beacon_filter_cmd *cmd)
72 {
73 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
74
75 if (vif->bss_conf.cqm_rssi_thold) {
76 cmd->bf_energy_delta =
77 cpu_to_le32(vif->bss_conf.cqm_rssi_hyst);
78 /* fw uses an absolute value for this */
79 cmd->bf_roaming_state =
80 cpu_to_le32(-vif->bss_conf.cqm_rssi_thold);
81 }
82 cmd->ba_enable_beacon_abort = cpu_to_le32(mvmvif->ba_enabled);
83 }
84
iwl_mvm_power_log(struct iwl_mvm * mvm,struct iwl_mac_power_cmd * cmd)85 static void iwl_mvm_power_log(struct iwl_mvm *mvm,
86 struct iwl_mac_power_cmd *cmd)
87 {
88 IWL_DEBUG_POWER(mvm,
89 "Sending power table command on mac id 0x%X for power level %d, flags = 0x%X\n",
90 cmd->id_and_color, iwlmvm_mod_params.power_scheme,
91 le16_to_cpu(cmd->flags));
92 IWL_DEBUG_POWER(mvm, "Keep alive = %u sec\n",
93 le16_to_cpu(cmd->keep_alive_seconds));
94
95 if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK))) {
96 IWL_DEBUG_POWER(mvm, "Disable power management\n");
97 return;
98 }
99
100 IWL_DEBUG_POWER(mvm, "Rx timeout = %u usec\n",
101 le32_to_cpu(cmd->rx_data_timeout));
102 IWL_DEBUG_POWER(mvm, "Tx timeout = %u usec\n",
103 le32_to_cpu(cmd->tx_data_timeout));
104 if (cmd->flags & cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK))
105 IWL_DEBUG_POWER(mvm, "DTIM periods to skip = %u\n",
106 cmd->skip_dtim_periods);
107 if (cmd->flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
108 IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n",
109 cmd->lprx_rssi_threshold);
110 if (cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)) {
111 IWL_DEBUG_POWER(mvm, "uAPSD enabled\n");
112 IWL_DEBUG_POWER(mvm, "Rx timeout (uAPSD) = %u usec\n",
113 le32_to_cpu(cmd->rx_data_timeout_uapsd));
114 IWL_DEBUG_POWER(mvm, "Tx timeout (uAPSD) = %u usec\n",
115 le32_to_cpu(cmd->tx_data_timeout_uapsd));
116 IWL_DEBUG_POWER(mvm, "QNDP TID = %d\n", cmd->qndp_tid);
117 IWL_DEBUG_POWER(mvm, "ACs flags = 0x%x\n", cmd->uapsd_ac_flags);
118 IWL_DEBUG_POWER(mvm, "Max SP = %d\n", cmd->uapsd_max_sp);
119 }
120 }
121
iwl_mvm_power_configure_uapsd(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_mac_power_cmd * cmd)122 static void iwl_mvm_power_configure_uapsd(struct iwl_mvm *mvm,
123 struct ieee80211_vif *vif,
124 struct iwl_mac_power_cmd *cmd)
125 {
126 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
127 enum ieee80211_ac_numbers ac;
128 bool tid_found = false;
129
130 if (test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status) ||
131 cmd->flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
132 cmd->rx_data_timeout_uapsd =
133 cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
134 cmd->tx_data_timeout_uapsd =
135 cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
136 } else {
137 cmd->rx_data_timeout_uapsd =
138 cpu_to_le32(IWL_MVM_UAPSD_RX_DATA_TIMEOUT);
139 cmd->tx_data_timeout_uapsd =
140 cpu_to_le32(IWL_MVM_UAPSD_TX_DATA_TIMEOUT);
141 }
142
143 #ifdef CONFIG_IWLWIFI_DEBUGFS
144 /* set advanced pm flag with no uapsd ACs to enable ps-poll */
145 if (mvmvif->dbgfs_pm.use_ps_poll) {
146 cmd->flags |= cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
147 return;
148 }
149 #endif
150
151 for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_BK; ac++) {
152 if (!mvmvif->deflink.queue_params[ac].uapsd)
153 continue;
154
155 if (!test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))
156 cmd->flags |=
157 cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
158
159 cmd->uapsd_ac_flags |= BIT(ac);
160
161 /* QNDP TID - the highest TID with no admission control */
162 if (!tid_found && !mvmvif->deflink.queue_params[ac].acm) {
163 tid_found = true;
164 switch (ac) {
165 case IEEE80211_AC_VO:
166 cmd->qndp_tid = 6;
167 break;
168 case IEEE80211_AC_VI:
169 cmd->qndp_tid = 5;
170 break;
171 case IEEE80211_AC_BE:
172 cmd->qndp_tid = 0;
173 break;
174 case IEEE80211_AC_BK:
175 cmd->qndp_tid = 1;
176 break;
177 }
178 }
179 }
180
181 cmd->flags |= cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK);
182
183 if (cmd->uapsd_ac_flags == (BIT(IEEE80211_AC_VO) |
184 BIT(IEEE80211_AC_VI) |
185 BIT(IEEE80211_AC_BE) |
186 BIT(IEEE80211_AC_BK))) {
187 cmd->flags |= cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
188 cmd->snooze_interval = cpu_to_le16(IWL_MVM_PS_SNOOZE_INTERVAL);
189 cmd->snooze_window =
190 test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status) ?
191 cpu_to_le16(IWL_MVM_WOWLAN_PS_SNOOZE_WINDOW) :
192 cpu_to_le16(IWL_MVM_PS_SNOOZE_WINDOW);
193 }
194
195 cmd->uapsd_max_sp = mvm->hw->uapsd_max_sp_len;
196
197 if (cmd->flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
198 cmd->heavy_tx_thld_packets =
199 IWL_MVM_PS_SNOOZE_HEAVY_TX_THLD_PACKETS;
200 cmd->heavy_rx_thld_packets =
201 IWL_MVM_PS_SNOOZE_HEAVY_RX_THLD_PACKETS;
202 } else {
203 cmd->heavy_tx_thld_packets =
204 IWL_MVM_PS_HEAVY_TX_THLD_PACKETS;
205 cmd->heavy_rx_thld_packets =
206 IWL_MVM_PS_HEAVY_RX_THLD_PACKETS;
207 }
208 cmd->heavy_tx_thld_percentage =
209 IWL_MVM_PS_HEAVY_TX_THLD_PERCENT;
210 cmd->heavy_rx_thld_percentage =
211 IWL_MVM_PS_HEAVY_RX_THLD_PERCENT;
212 }
213
214 struct iwl_allow_uapsd_iface_iterator_data {
215 struct ieee80211_vif *current_vif;
216 bool allow_uapsd;
217 };
218
iwl_mvm_allow_uapsd_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)219 static void iwl_mvm_allow_uapsd_iterator(void *_data, u8 *mac,
220 struct ieee80211_vif *vif)
221 {
222 struct iwl_allow_uapsd_iface_iterator_data *data = _data;
223 struct iwl_mvm_vif *other_mvmvif = iwl_mvm_vif_from_mac80211(vif);
224 struct iwl_mvm_vif *curr_mvmvif =
225 iwl_mvm_vif_from_mac80211(data->current_vif);
226
227 /* exclude the given vif */
228 if (vif == data->current_vif)
229 return;
230
231 switch (vif->type) {
232 case NL80211_IFTYPE_AP:
233 case NL80211_IFTYPE_ADHOC:
234 data->allow_uapsd = false;
235 break;
236 case NL80211_IFTYPE_STATION:
237 /* allow UAPSD if P2P interface and BSS station interface share
238 * the same channel.
239 */
240 if (vif->cfg.assoc && other_mvmvif->deflink.phy_ctxt &&
241 curr_mvmvif->deflink.phy_ctxt &&
242 other_mvmvif->deflink.phy_ctxt->id != curr_mvmvif->deflink.phy_ctxt->id)
243 data->allow_uapsd = false;
244 break;
245
246 default:
247 break;
248 }
249 }
250
iwl_mvm_power_allow_uapsd(struct iwl_mvm * mvm,struct ieee80211_vif * vif)251 static bool iwl_mvm_power_allow_uapsd(struct iwl_mvm *mvm,
252 struct ieee80211_vif *vif)
253 {
254 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
255 struct iwl_allow_uapsd_iface_iterator_data data = {
256 .current_vif = vif,
257 .allow_uapsd = true,
258 };
259
260 if (ether_addr_equal(mvmvif->uapsd_misbehaving_ap_addr,
261 vif->cfg.ap_addr))
262 return false;
263
264 /*
265 * Avoid using uAPSD if P2P client is associated to GO that uses
266 * opportunistic power save. This is due to current FW limitation.
267 */
268 if (vif->p2p &&
269 (vif->bss_conf.p2p_noa_attr.oppps_ctwindow &
270 IEEE80211_P2P_OPPPS_ENABLE_BIT))
271 return false;
272
273 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm))
274 return false;
275
276 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
277 IEEE80211_IFACE_ITER_NORMAL,
278 iwl_mvm_allow_uapsd_iterator,
279 &data);
280
281 return data.allow_uapsd;
282 }
283
iwl_mvm_power_is_radar(struct ieee80211_bss_conf * link_conf)284 static bool iwl_mvm_power_is_radar(struct ieee80211_bss_conf *link_conf)
285 {
286 struct ieee80211_chanctx_conf *chanctx_conf;
287
288 chanctx_conf = rcu_dereference(link_conf->chanctx_conf);
289
290 /* this happens on link switching, just ignore inactive ones */
291 if (!chanctx_conf)
292 return false;
293
294 return chanctx_conf->def.chan->flags & IEEE80211_CHAN_RADAR;
295 }
296
iwl_mvm_power_config_skip_dtim(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_mac_power_cmd * cmd)297 static void iwl_mvm_power_config_skip_dtim(struct iwl_mvm *mvm,
298 struct ieee80211_vif *vif,
299 struct iwl_mac_power_cmd *cmd)
300 {
301 struct ieee80211_bss_conf *link_conf;
302 unsigned int min_link_skip = ~0;
303 unsigned int link_id;
304
305 /* disable, in case we're supposed to override */
306 cmd->skip_dtim_periods = 0;
307 cmd->flags &= ~cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
308
309 if (!test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status)) {
310 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_LP)
311 return;
312 cmd->skip_dtim_periods = 2;
313 cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
314 return;
315 }
316
317 rcu_read_lock();
318 for_each_vif_active_link(vif, link_conf, link_id) {
319 unsigned int dtimper = link_conf->dtim_period ?: 1;
320 unsigned int dtimper_tu = dtimper * link_conf->beacon_int;
321 unsigned int skip;
322
323 if (dtimper >= 10 || iwl_mvm_power_is_radar(link_conf)) {
324 rcu_read_unlock();
325 return;
326 }
327
328 if (WARN_ON(!dtimper_tu))
329 continue;
330
331 /* configure skip over dtim up to 900 TU DTIM interval */
332 skip = max_t(int, 1, 900 / dtimper_tu);
333 min_link_skip = min(min_link_skip, skip);
334 }
335 rcu_read_unlock();
336
337 /* no WARN_ON, can only happen with WARN_ON above */
338 if (min_link_skip == ~0)
339 return;
340
341 cmd->skip_dtim_periods = min_link_skip;
342 cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
343 }
344
iwl_mvm_power_build_cmd(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_mac_power_cmd * cmd)345 static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm,
346 struct ieee80211_vif *vif,
347 struct iwl_mac_power_cmd *cmd)
348 {
349 int dtimper, bi;
350 int keep_alive;
351 struct iwl_mvm_vif *mvmvif __maybe_unused =
352 iwl_mvm_vif_from_mac80211(vif);
353
354 cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
355 mvmvif->color));
356 dtimper = vif->bss_conf.dtim_period;
357 bi = vif->bss_conf.beacon_int;
358
359 /*
360 * Regardless of power management state the driver must set
361 * keep alive period. FW will use it for sending keep alive NDPs
362 * immediately after association. Check that keep alive period
363 * is at least 3 * DTIM
364 */
365 keep_alive = DIV_ROUND_UP(ieee80211_tu_to_usec(3 * dtimper * bi),
366 USEC_PER_SEC);
367 keep_alive = max(keep_alive, POWER_KEEP_ALIVE_PERIOD_SEC);
368 cmd->keep_alive_seconds = cpu_to_le16(keep_alive);
369
370 if (mvm->ps_disabled)
371 return;
372
373 cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
374
375 if (!vif->cfg.ps || !mvmvif->pm_enabled)
376 return;
377
378 if (iwl_fw_lookup_cmd_ver(mvm->fw, MAC_PM_POWER_TABLE, 0) >= 2)
379 cmd->flags |= cpu_to_le16(POWER_FLAGS_ENABLE_SMPS_MSK);
380
381 if (iwl_mvm_vif_low_latency(mvmvif) && vif->p2p &&
382 (!fw_has_capa(&mvm->fw->ucode_capa,
383 IWL_UCODE_TLV_CAPA_SHORT_PM_TIMEOUTS) ||
384 !IWL_MVM_P2P_LOWLATENCY_PS_ENABLE))
385 return;
386
387 cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK);
388
389 if (vif->bss_conf.beacon_rate &&
390 (vif->bss_conf.beacon_rate->bitrate == 10 ||
391 vif->bss_conf.beacon_rate->bitrate == 60)) {
392 cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
393 cmd->lprx_rssi_threshold = POWER_LPRX_RSSI_THRESHOLD;
394 }
395
396 iwl_mvm_power_config_skip_dtim(mvm, vif, cmd);
397
398 if (test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status)) {
399 cmd->rx_data_timeout =
400 cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
401 cmd->tx_data_timeout =
402 cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
403 } else if (iwl_mvm_vif_low_latency(mvmvif) && vif->p2p &&
404 fw_has_capa(&mvm->fw->ucode_capa,
405 IWL_UCODE_TLV_CAPA_SHORT_PM_TIMEOUTS)) {
406 cmd->tx_data_timeout =
407 cpu_to_le32(IWL_MVM_SHORT_PS_TX_DATA_TIMEOUT);
408 cmd->rx_data_timeout =
409 cpu_to_le32(IWL_MVM_SHORT_PS_RX_DATA_TIMEOUT);
410 } else {
411 cmd->rx_data_timeout =
412 cpu_to_le32(IWL_MVM_DEFAULT_PS_RX_DATA_TIMEOUT);
413 cmd->tx_data_timeout =
414 cpu_to_le32(IWL_MVM_DEFAULT_PS_TX_DATA_TIMEOUT);
415 }
416
417 if (iwl_mvm_power_allow_uapsd(mvm, vif))
418 iwl_mvm_power_configure_uapsd(mvm, vif, cmd);
419
420 #ifdef CONFIG_IWLWIFI_DEBUGFS
421 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_KEEP_ALIVE)
422 cmd->keep_alive_seconds =
423 cpu_to_le16(mvmvif->dbgfs_pm.keep_alive_seconds);
424 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_OVER_DTIM) {
425 if (mvmvif->dbgfs_pm.skip_over_dtim)
426 cmd->flags |=
427 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
428 else
429 cmd->flags &=
430 cpu_to_le16(~POWER_FLAGS_SKIP_OVER_DTIM_MSK);
431 }
432 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_RX_DATA_TIMEOUT)
433 cmd->rx_data_timeout =
434 cpu_to_le32(mvmvif->dbgfs_pm.rx_data_timeout);
435 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_TX_DATA_TIMEOUT)
436 cmd->tx_data_timeout =
437 cpu_to_le32(mvmvif->dbgfs_pm.tx_data_timeout);
438 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS)
439 cmd->skip_dtim_periods = mvmvif->dbgfs_pm.skip_dtim_periods;
440 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_ENA) {
441 if (mvmvif->dbgfs_pm.lprx_ena)
442 cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
443 else
444 cmd->flags &= cpu_to_le16(~POWER_FLAGS_LPRX_ENA_MSK);
445 }
446 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD)
447 cmd->lprx_rssi_threshold = mvmvif->dbgfs_pm.lprx_rssi_threshold;
448 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SNOOZE_ENABLE) {
449 if (mvmvif->dbgfs_pm.snooze_ena)
450 cmd->flags |=
451 cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
452 else
453 cmd->flags &=
454 cpu_to_le16(~POWER_FLAGS_SNOOZE_ENA_MSK);
455 }
456 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_UAPSD_MISBEHAVING) {
457 u16 flag = POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK;
458 if (mvmvif->dbgfs_pm.uapsd_misbehaving)
459 cmd->flags |= cpu_to_le16(flag);
460 else
461 cmd->flags &= cpu_to_le16(flag);
462 }
463 #endif /* CONFIG_IWLWIFI_DEBUGFS */
464 }
465
iwl_mvm_power_send_cmd(struct iwl_mvm * mvm,struct ieee80211_vif * vif)466 static int iwl_mvm_power_send_cmd(struct iwl_mvm *mvm,
467 struct ieee80211_vif *vif)
468 {
469 struct iwl_mac_power_cmd cmd = {};
470
471 iwl_mvm_power_build_cmd(mvm, vif, &cmd);
472 iwl_mvm_power_log(mvm, &cmd);
473 #ifdef CONFIG_IWLWIFI_DEBUGFS
474 memcpy(&iwl_mvm_vif_from_mac80211(vif)->mac_pwr_cmd, &cmd, sizeof(cmd));
475 #endif
476
477 return iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, 0,
478 sizeof(cmd), &cmd);
479 }
480
iwl_mvm_power_update_device(struct iwl_mvm * mvm)481 int iwl_mvm_power_update_device(struct iwl_mvm *mvm)
482 {
483 struct iwl_device_power_cmd cmd = {
484 .flags = 0,
485 };
486
487 if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM)
488 mvm->ps_disabled = true;
489
490 if (!mvm->ps_disabled)
491 cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK);
492
493 #ifdef CONFIG_IWLWIFI_DEBUGFS
494 if (test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status) ?
495 mvm->disable_power_off_d3 : mvm->disable_power_off)
496 cmd.flags &=
497 cpu_to_le16(~DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK);
498 #endif
499 if (mvm->ext_clock_valid)
500 cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_32K_CLK_VALID_MSK);
501
502 if (iwl_fw_lookup_cmd_ver(mvm->fw, POWER_TABLE_CMD, 0) >= 7 &&
503 test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))
504 cmd.flags |=
505 cpu_to_le16(DEVICE_POWER_FLAGS_NO_SLEEP_TILL_D3_MSK);
506
507 IWL_DEBUG_POWER(mvm,
508 "Sending device power command with flags = 0x%X\n",
509 cmd.flags);
510
511 return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, 0, sizeof(cmd),
512 &cmd);
513 }
514
iwl_mvm_power_vif_assoc(struct iwl_mvm * mvm,struct ieee80211_vif * vif)515 void iwl_mvm_power_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
516 {
517 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
518
519 if (!ether_addr_equal(mvmvif->uapsd_misbehaving_ap_addr,
520 vif->cfg.ap_addr))
521 eth_zero_addr(mvmvif->uapsd_misbehaving_ap_addr);
522 }
523
iwl_mvm_power_uapsd_misbehav_ap_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)524 static void iwl_mvm_power_uapsd_misbehav_ap_iterator(void *_data, u8 *mac,
525 struct ieee80211_vif *vif)
526 {
527 u8 *ap_sta_id = _data;
528 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
529 struct ieee80211_bss_conf *link_conf;
530 unsigned int link_id;
531
532 rcu_read_lock();
533 for_each_vif_active_link(vif, link_conf, link_id) {
534 struct iwl_mvm_vif_link_info *link_info = mvmvif->link[link_id];
535
536 /* The ap_sta_id is not expected to change during current
537 * association so no explicit protection is needed
538 */
539 if (link_info->ap_sta_id == *ap_sta_id) {
540 ether_addr_copy(mvmvif->uapsd_misbehaving_ap_addr,
541 vif->cfg.ap_addr);
542 break;
543 }
544 }
545 rcu_read_unlock();
546 }
547
iwl_mvm_power_uapsd_misbehaving_ap_notif(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)548 void iwl_mvm_power_uapsd_misbehaving_ap_notif(struct iwl_mvm *mvm,
549 struct iwl_rx_cmd_buffer *rxb)
550 {
551 struct iwl_rx_packet *pkt = rxb_addr(rxb);
552 struct iwl_uapsd_misbehaving_ap_notif *notif = (void *)pkt->data;
553 u8 ap_sta_id = le32_to_cpu(notif->sta_id);
554
555 ieee80211_iterate_active_interfaces_atomic(
556 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
557 iwl_mvm_power_uapsd_misbehav_ap_iterator, &ap_sta_id);
558 }
559
560 struct iwl_power_vifs {
561 struct iwl_mvm *mvm;
562 struct ieee80211_vif *bss_vif;
563 struct ieee80211_vif *p2p_vif;
564 struct ieee80211_vif *ap_vif;
565 struct ieee80211_vif *monitor_vif;
566 bool p2p_active;
567 bool bss_active;
568 bool ap_active;
569 bool monitor_active;
570 };
571
iwl_mvm_power_disable_pm_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)572 static void iwl_mvm_power_disable_pm_iterator(void *_data, u8 *mac,
573 struct ieee80211_vif *vif)
574 {
575 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
576
577 mvmvif->pm_enabled = false;
578 }
579
iwl_mvm_power_ps_disabled_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)580 static void iwl_mvm_power_ps_disabled_iterator(void *_data, u8 *mac,
581 struct ieee80211_vif *vif)
582 {
583 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
584 bool *disable_ps = _data;
585
586 if (iwl_mvm_vif_is_active(mvmvif))
587 *disable_ps |= mvmvif->ps_disabled;
588 }
589
iwl_mvm_power_get_vifs_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)590 static void iwl_mvm_power_get_vifs_iterator(void *_data, u8 *mac,
591 struct ieee80211_vif *vif)
592 {
593 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
594 struct iwl_power_vifs *power_iterator = _data;
595 bool active;
596
597 if (!mvmvif->uploaded)
598 return;
599
600 active = iwl_mvm_vif_is_active(mvmvif);
601
602 switch (ieee80211_vif_type_p2p(vif)) {
603 case NL80211_IFTYPE_P2P_DEVICE:
604 break;
605
606 case NL80211_IFTYPE_P2P_GO:
607 case NL80211_IFTYPE_AP:
608 /* only a single MAC of the same type */
609 WARN_ON(power_iterator->ap_vif);
610 power_iterator->ap_vif = vif;
611 if (active)
612 power_iterator->ap_active = true;
613 break;
614
615 case NL80211_IFTYPE_MONITOR:
616 /* only a single MAC of the same type */
617 WARN_ON(power_iterator->monitor_vif);
618 power_iterator->monitor_vif = vif;
619 if (active)
620 power_iterator->monitor_active = true;
621 break;
622
623 case NL80211_IFTYPE_P2P_CLIENT:
624 /* only a single MAC of the same type */
625 WARN_ON(power_iterator->p2p_vif);
626 power_iterator->p2p_vif = vif;
627 if (active)
628 power_iterator->p2p_active = true;
629 break;
630
631 case NL80211_IFTYPE_STATION:
632 power_iterator->bss_vif = vif;
633 if (active)
634 power_iterator->bss_active = true;
635 break;
636
637 default:
638 break;
639 }
640 }
641
iwl_mvm_power_set_pm(struct iwl_mvm * mvm,struct iwl_power_vifs * vifs)642 static void iwl_mvm_power_set_pm(struct iwl_mvm *mvm,
643 struct iwl_power_vifs *vifs)
644 {
645 struct iwl_mvm_vif *bss_mvmvif = NULL;
646 struct iwl_mvm_vif *p2p_mvmvif = NULL;
647 struct iwl_mvm_vif *ap_mvmvif = NULL;
648 bool client_same_channel = false;
649 bool ap_same_channel = false;
650
651 lockdep_assert_held(&mvm->mutex);
652
653 /* set pm_enable to false */
654 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
655 IEEE80211_IFACE_ITER_NORMAL,
656 iwl_mvm_power_disable_pm_iterator,
657 NULL);
658
659 if (vifs->bss_vif)
660 bss_mvmvif = iwl_mvm_vif_from_mac80211(vifs->bss_vif);
661
662 if (vifs->p2p_vif)
663 p2p_mvmvif = iwl_mvm_vif_from_mac80211(vifs->p2p_vif);
664
665 if (vifs->ap_vif)
666 ap_mvmvif = iwl_mvm_vif_from_mac80211(vifs->ap_vif);
667
668 /* don't allow PM if any TDLS stations exist */
669 if (iwl_mvm_tdls_sta_count(mvm, NULL))
670 return;
671
672 /* enable PM on bss if bss stand alone */
673 if (bss_mvmvif && vifs->bss_active && !vifs->p2p_active &&
674 !vifs->ap_active) {
675 bss_mvmvif->pm_enabled = true;
676 return;
677 }
678
679 /* enable PM on p2p if p2p stand alone */
680 if (p2p_mvmvif && vifs->p2p_active && !vifs->bss_active &&
681 !vifs->ap_active) {
682 p2p_mvmvif->pm_enabled = true;
683 return;
684 }
685
686 if (p2p_mvmvif && bss_mvmvif && vifs->bss_active && vifs->p2p_active)
687 client_same_channel =
688 iwl_mvm_have_links_same_channel(bss_mvmvif, p2p_mvmvif);
689
690 if (bss_mvmvif && ap_mvmvif && vifs->bss_active && vifs->ap_active)
691 ap_same_channel =
692 iwl_mvm_have_links_same_channel(bss_mvmvif, ap_mvmvif);
693
694 /* clients are not stand alone: enable PM if DCM */
695 if (!(client_same_channel || ap_same_channel)) {
696 if (bss_mvmvif && vifs->bss_active)
697 bss_mvmvif->pm_enabled = true;
698 if (p2p_mvmvif && vifs->p2p_active)
699 p2p_mvmvif->pm_enabled = true;
700 return;
701 }
702
703 /*
704 * There is only one channel in the system and there are only
705 * bss and p2p clients that share it
706 */
707 if (client_same_channel && !vifs->ap_active) {
708 /* share same channel*/
709 bss_mvmvif->pm_enabled = true;
710 p2p_mvmvif->pm_enabled = true;
711 }
712 }
713
714 #ifdef CONFIG_IWLWIFI_DEBUGFS
iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm * mvm,struct ieee80211_vif * vif,char * buf,int bufsz)715 int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm,
716 struct ieee80211_vif *vif, char *buf,
717 int bufsz)
718 {
719 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
720 struct iwl_mac_power_cmd cmd = {};
721 int pos = 0;
722
723 mutex_lock(&mvm->mutex);
724 memcpy(&cmd, &mvmvif->mac_pwr_cmd, sizeof(cmd));
725 mutex_unlock(&mvm->mutex);
726
727 pos += scnprintf(buf+pos, bufsz-pos, "power_scheme = %d\n",
728 iwlmvm_mod_params.power_scheme);
729 pos += scnprintf(buf+pos, bufsz-pos, "flags = 0x%x\n",
730 le16_to_cpu(cmd.flags));
731 pos += scnprintf(buf+pos, bufsz-pos, "keep_alive = %d\n",
732 le16_to_cpu(cmd.keep_alive_seconds));
733
734 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK)))
735 return pos;
736
737 pos += scnprintf(buf+pos, bufsz-pos, "skip_over_dtim = %d\n",
738 (cmd.flags &
739 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK)) ? 1 : 0);
740 pos += scnprintf(buf+pos, bufsz-pos, "skip_dtim_periods = %d\n",
741 cmd.skip_dtim_periods);
742 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) {
743 pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout = %d\n",
744 le32_to_cpu(cmd.rx_data_timeout));
745 pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout = %d\n",
746 le32_to_cpu(cmd.tx_data_timeout));
747 }
748 if (cmd.flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
749 pos += scnprintf(buf+pos, bufsz-pos,
750 "lprx_rssi_threshold = %d\n",
751 cmd.lprx_rssi_threshold);
752
753 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)))
754 return pos;
755
756 pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout_uapsd = %d\n",
757 le32_to_cpu(cmd.rx_data_timeout_uapsd));
758 pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout_uapsd = %d\n",
759 le32_to_cpu(cmd.tx_data_timeout_uapsd));
760 pos += scnprintf(buf+pos, bufsz-pos, "qndp_tid = %d\n", cmd.qndp_tid);
761 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_ac_flags = 0x%x\n",
762 cmd.uapsd_ac_flags);
763 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_max_sp = %d\n",
764 cmd.uapsd_max_sp);
765 pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_packets = %d\n",
766 cmd.heavy_tx_thld_packets);
767 pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_packets = %d\n",
768 cmd.heavy_rx_thld_packets);
769 pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_percentage = %d\n",
770 cmd.heavy_tx_thld_percentage);
771 pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_percentage = %d\n",
772 cmd.heavy_rx_thld_percentage);
773 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_misbehaving_enable = %d\n",
774 (cmd.flags &
775 cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK)) ?
776 1 : 0);
777
778 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)))
779 return pos;
780
781 pos += scnprintf(buf+pos, bufsz-pos, "snooze_interval = %d\n",
782 cmd.snooze_interval);
783 pos += scnprintf(buf+pos, bufsz-pos, "snooze_window = %d\n",
784 cmd.snooze_window);
785
786 return pos;
787 }
788
789 void
iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif * vif,struct iwl_beacon_filter_cmd * cmd)790 iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
791 struct iwl_beacon_filter_cmd *cmd)
792 {
793 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
794 struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
795
796 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ENERGY_DELTA)
797 cmd->bf_energy_delta = cpu_to_le32(dbgfs_bf->bf_energy_delta);
798 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA)
799 cmd->bf_roaming_energy_delta =
800 cpu_to_le32(dbgfs_bf->bf_roaming_energy_delta);
801 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_STATE)
802 cmd->bf_roaming_state = cpu_to_le32(dbgfs_bf->bf_roaming_state);
803 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_THRESHOLD)
804 cmd->bf_temp_threshold =
805 cpu_to_le32(dbgfs_bf->bf_temp_threshold);
806 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_FAST_FILTER)
807 cmd->bf_temp_fast_filter =
808 cpu_to_le32(dbgfs_bf->bf_temp_fast_filter);
809 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_SLOW_FILTER)
810 cmd->bf_temp_slow_filter =
811 cpu_to_le32(dbgfs_bf->bf_temp_slow_filter);
812 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_DEBUG_FLAG)
813 cmd->bf_debug_flag = cpu_to_le32(dbgfs_bf->bf_debug_flag);
814 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ESCAPE_TIMER)
815 cmd->bf_escape_timer = cpu_to_le32(dbgfs_bf->bf_escape_timer);
816 if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ESCAPE_TIMER)
817 cmd->ba_escape_timer = cpu_to_le32(dbgfs_bf->ba_escape_timer);
818 if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT)
819 cmd->ba_enable_beacon_abort =
820 cpu_to_le32(dbgfs_bf->ba_enable_beacon_abort);
821 }
822 #endif
823
_iwl_mvm_enable_beacon_filter(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_beacon_filter_cmd * cmd)824 static int _iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
825 struct ieee80211_vif *vif,
826 struct iwl_beacon_filter_cmd *cmd)
827 {
828 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
829 int ret;
830
831 if (mvmvif != mvm->bf_allowed_vif || !vif->bss_conf.dtim_period ||
832 vif->type != NL80211_IFTYPE_STATION || vif->p2p)
833 return 0;
834
835 iwl_mvm_beacon_filter_set_cqm_params(mvm, vif, cmd);
836 iwl_mvm_beacon_filter_debugfs_parameters(vif, cmd);
837 ret = iwl_mvm_beacon_filter_send_cmd(mvm, cmd);
838
839 if (!ret)
840 mvmvif->bf_enabled = true;
841
842 return ret;
843 }
844
iwl_mvm_enable_beacon_filter(struct iwl_mvm * mvm,struct ieee80211_vif * vif)845 int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
846 struct ieee80211_vif *vif)
847 {
848 struct iwl_beacon_filter_cmd cmd = {
849 IWL_BF_CMD_CONFIG_DEFAULTS,
850 .bf_enable_beacon_filter = cpu_to_le32(1),
851 };
852
853 return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd);
854 }
855
_iwl_mvm_disable_beacon_filter(struct iwl_mvm * mvm,struct ieee80211_vif * vif)856 static int _iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
857 struct ieee80211_vif *vif)
858 {
859 struct iwl_beacon_filter_cmd cmd = {};
860 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
861 int ret;
862
863 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
864 return 0;
865
866 ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
867
868 if (!ret)
869 mvmvif->bf_enabled = false;
870
871 return ret;
872 }
873
iwl_mvm_disable_beacon_filter(struct iwl_mvm * mvm,struct ieee80211_vif * vif)874 int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
875 struct ieee80211_vif *vif)
876 {
877 return _iwl_mvm_disable_beacon_filter(mvm, vif);
878 }
879
iwl_mvm_power_set_ps(struct iwl_mvm * mvm)880 static int iwl_mvm_power_set_ps(struct iwl_mvm *mvm)
881 {
882 bool disable_ps;
883 int ret;
884
885 /* disable PS if CAM */
886 disable_ps = (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM);
887 /* ...or if any of the vifs require PS to be off */
888 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
889 IEEE80211_IFACE_ITER_NORMAL,
890 iwl_mvm_power_ps_disabled_iterator,
891 &disable_ps);
892
893 /* update device power state if it has changed */
894 if (mvm->ps_disabled != disable_ps) {
895 bool old_ps_disabled = mvm->ps_disabled;
896
897 mvm->ps_disabled = disable_ps;
898 ret = iwl_mvm_power_update_device(mvm);
899 if (ret) {
900 mvm->ps_disabled = old_ps_disabled;
901 return ret;
902 }
903 }
904
905 return 0;
906 }
907
iwl_mvm_power_set_ba(struct iwl_mvm * mvm,struct ieee80211_vif * vif)908 static int iwl_mvm_power_set_ba(struct iwl_mvm *mvm,
909 struct ieee80211_vif *vif)
910 {
911 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
912 struct iwl_beacon_filter_cmd cmd = {
913 IWL_BF_CMD_CONFIG_DEFAULTS,
914 .bf_enable_beacon_filter = cpu_to_le32(1),
915 };
916
917 if (!mvmvif->bf_enabled)
918 return 0;
919
920 if (test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))
921 cmd.ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER_D3);
922
923 mvmvif->ba_enabled = !(!mvmvif->pm_enabled ||
924 mvm->ps_disabled ||
925 !vif->cfg.ps ||
926 iwl_mvm_vif_low_latency(mvmvif));
927
928 return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd);
929 }
930
iwl_mvm_power_update_ps(struct iwl_mvm * mvm)931 int iwl_mvm_power_update_ps(struct iwl_mvm *mvm)
932 {
933 struct iwl_power_vifs vifs = {
934 .mvm = mvm,
935 };
936 int ret;
937
938 lockdep_assert_held(&mvm->mutex);
939
940 /* get vifs info */
941 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
942 IEEE80211_IFACE_ITER_NORMAL,
943 iwl_mvm_power_get_vifs_iterator, &vifs);
944
945 ret = iwl_mvm_power_set_ps(mvm);
946 if (ret)
947 return ret;
948
949 if (vifs.bss_vif)
950 return iwl_mvm_power_set_ba(mvm, vifs.bss_vif);
951
952 return 0;
953 }
954
iwl_mvm_power_update_mac(struct iwl_mvm * mvm)955 int iwl_mvm_power_update_mac(struct iwl_mvm *mvm)
956 {
957 struct iwl_power_vifs vifs = {
958 .mvm = mvm,
959 };
960 int ret;
961
962 lockdep_assert_held(&mvm->mutex);
963
964 /* get vifs info */
965 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
966 IEEE80211_IFACE_ITER_NORMAL,
967 iwl_mvm_power_get_vifs_iterator, &vifs);
968
969 iwl_mvm_power_set_pm(mvm, &vifs);
970
971 ret = iwl_mvm_power_set_ps(mvm);
972 if (ret)
973 return ret;
974
975 if (vifs.bss_vif) {
976 ret = iwl_mvm_power_send_cmd(mvm, vifs.bss_vif);
977 if (ret)
978 return ret;
979 }
980
981 if (vifs.p2p_vif) {
982 ret = iwl_mvm_power_send_cmd(mvm, vifs.p2p_vif);
983 if (ret)
984 return ret;
985 }
986
987 if (vifs.bss_vif)
988 return iwl_mvm_power_set_ba(mvm, vifs.bss_vif);
989
990 return 0;
991 }
992