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cb653ac104127d72996934a7c9a78d82237395ec
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / mvm / power.c
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 *
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
23 * USA
24 *
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
27 *
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 *
32 * BSD LICENSE
33 *
34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 *
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
47 * distribution.
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 *
64 *****************************************************************************/
65
66 #include <linux/kernel.h>
67 #include <linux/module.h>
68 #include <linux/slab.h>
69
70 #include <net/mac80211.h>
71
72 #include "iwl-debug.h"
73 #include "mvm.h"
74 #include "iwl-modparams.h"
75 #include "fw-api-power.h"
76
77 #define POWER_KEEP_ALIVE_PERIOD_SEC 25
78
79 static
80 int iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm *mvm,
81 struct iwl_beacon_filter_cmd *cmd,
82 u32 flags)
83 {
84 IWL_DEBUG_POWER(mvm, "ba_enable_beacon_abort is: %d\n",
85 le32_to_cpu(cmd->ba_enable_beacon_abort));
86 IWL_DEBUG_POWER(mvm, "ba_escape_timer is: %d\n",
87 le32_to_cpu(cmd->ba_escape_timer));
88 IWL_DEBUG_POWER(mvm, "bf_debug_flag is: %d\n",
89 le32_to_cpu(cmd->bf_debug_flag));
90 IWL_DEBUG_POWER(mvm, "bf_enable_beacon_filter is: %d\n",
91 le32_to_cpu(cmd->bf_enable_beacon_filter));
92 IWL_DEBUG_POWER(mvm, "bf_energy_delta is: %d\n",
93 le32_to_cpu(cmd->bf_energy_delta));
94 IWL_DEBUG_POWER(mvm, "bf_escape_timer is: %d\n",
95 le32_to_cpu(cmd->bf_escape_timer));
96 IWL_DEBUG_POWER(mvm, "bf_roaming_energy_delta is: %d\n",
97 le32_to_cpu(cmd->bf_roaming_energy_delta));
98 IWL_DEBUG_POWER(mvm, "bf_roaming_state is: %d\n",
99 le32_to_cpu(cmd->bf_roaming_state));
100 IWL_DEBUG_POWER(mvm, "bf_temp_threshold is: %d\n",
101 le32_to_cpu(cmd->bf_temp_threshold));
102 IWL_DEBUG_POWER(mvm, "bf_temp_fast_filter is: %d\n",
103 le32_to_cpu(cmd->bf_temp_fast_filter));
104 IWL_DEBUG_POWER(mvm, "bf_temp_slow_filter is: %d\n",
105 le32_to_cpu(cmd->bf_temp_slow_filter));
106
107 return iwl_mvm_send_cmd_pdu(mvm, REPLY_BEACON_FILTERING_CMD, flags,
108 sizeof(struct iwl_beacon_filter_cmd), cmd);
109 }
110
111 static
112 void iwl_mvm_beacon_filter_set_cqm_params(struct iwl_mvm *mvm,
113 struct ieee80211_vif *vif,
114 struct iwl_beacon_filter_cmd *cmd)
115 {
116 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
117
118 if (vif->bss_conf.cqm_rssi_thold) {
119 cmd->bf_energy_delta =
120 cpu_to_le32(vif->bss_conf.cqm_rssi_hyst);
121 /* fw uses an absolute value for this */
122 cmd->bf_roaming_state =
123 cpu_to_le32(-vif->bss_conf.cqm_rssi_thold);
124 }
125 cmd->ba_enable_beacon_abort = cpu_to_le32(mvmvif->bf_data.ba_enabled);
126 }
127
128 static void iwl_mvm_power_log(struct iwl_mvm *mvm,
129 struct iwl_mac_power_cmd *cmd)
130 {
131 IWL_DEBUG_POWER(mvm,
132 "Sending power table command on mac id 0x%X for power level %d, flags = 0x%X\n",
133 cmd->id_and_color, iwlmvm_mod_params.power_scheme,
134 le16_to_cpu(cmd->flags));
135 IWL_DEBUG_POWER(mvm, "Keep alive = %u sec\n",
136 le16_to_cpu(cmd->keep_alive_seconds));
137
138 if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK))) {
139 IWL_DEBUG_POWER(mvm, "Disable power management\n");
140 return;
141 }
142
143 IWL_DEBUG_POWER(mvm, "Rx timeout = %u usec\n",
144 le32_to_cpu(cmd->rx_data_timeout));
145 IWL_DEBUG_POWER(mvm, "Tx timeout = %u usec\n",
146 le32_to_cpu(cmd->tx_data_timeout));
147 if (cmd->flags & cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK))
148 IWL_DEBUG_POWER(mvm, "DTIM periods to skip = %u\n",
149 cmd->skip_dtim_periods);
150 if (cmd->flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
151 IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n",
152 cmd->lprx_rssi_threshold);
153 if (cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)) {
154 IWL_DEBUG_POWER(mvm, "uAPSD enabled\n");
155 IWL_DEBUG_POWER(mvm, "Rx timeout (uAPSD) = %u usec\n",
156 le32_to_cpu(cmd->rx_data_timeout_uapsd));
157 IWL_DEBUG_POWER(mvm, "Tx timeout (uAPSD) = %u usec\n",
158 le32_to_cpu(cmd->tx_data_timeout_uapsd));
159 IWL_DEBUG_POWER(mvm, "QNDP TID = %d\n", cmd->qndp_tid);
160 IWL_DEBUG_POWER(mvm, "ACs flags = 0x%x\n", cmd->uapsd_ac_flags);
161 IWL_DEBUG_POWER(mvm, "Max SP = %d\n", cmd->uapsd_max_sp);
162 }
163 }
164
165 static void iwl_mvm_power_configure_uapsd(struct iwl_mvm *mvm,
166 struct ieee80211_vif *vif,
167 struct iwl_mac_power_cmd *cmd)
168 {
169 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
170 enum ieee80211_ac_numbers ac;
171 bool tid_found = false;
172
173 for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_BK; ac++) {
174 if (!mvmvif->queue_params[ac].uapsd)
175 continue;
176
177 if (mvm->cur_ucode != IWL_UCODE_WOWLAN)
178 cmd->flags |=
179 cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
180
181 cmd->uapsd_ac_flags |= BIT(ac);
182
183 /* QNDP TID - the highest TID with no admission control */
184 if (!tid_found && !mvmvif->queue_params[ac].acm) {
185 tid_found = true;
186 switch (ac) {
187 case IEEE80211_AC_VO:
188 cmd->qndp_tid = 6;
189 break;
190 case IEEE80211_AC_VI:
191 cmd->qndp_tid = 5;
192 break;
193 case IEEE80211_AC_BE:
194 cmd->qndp_tid = 0;
195 break;
196 case IEEE80211_AC_BK:
197 cmd->qndp_tid = 1;
198 break;
199 }
200 }
201 }
202
203 if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) {
204 #ifdef CONFIG_IWLWIFI_DEBUGFS
205 /* set advanced pm flag with no uapsd ACs to enable ps-poll */
206 if (mvmvif->dbgfs_pm.use_ps_poll)
207 cmd->flags |=
208 cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
209 #endif
210 return;
211 }
212
213 cmd->flags |= cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK);
214
215 if (cmd->uapsd_ac_flags == (BIT(IEEE80211_AC_VO) |
216 BIT(IEEE80211_AC_VI) |
217 BIT(IEEE80211_AC_BE) |
218 BIT(IEEE80211_AC_BK))) {
219 cmd->flags |= cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
220 cmd->snooze_interval = cpu_to_le16(IWL_MVM_PS_SNOOZE_INTERVAL);
221 cmd->snooze_window = (mvm->cur_ucode == IWL_UCODE_WOWLAN) ?
222 cpu_to_le16(IWL_MVM_WOWLAN_PS_SNOOZE_WINDOW) :
223 cpu_to_le16(IWL_MVM_PS_SNOOZE_WINDOW);
224 }
225
226 cmd->uapsd_max_sp = IWL_UAPSD_MAX_SP;
227
228 if (mvm->cur_ucode == IWL_UCODE_WOWLAN || cmd->flags &
229 cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
230 cmd->rx_data_timeout_uapsd =
231 cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
232 cmd->tx_data_timeout_uapsd =
233 cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
234 } else {
235 cmd->rx_data_timeout_uapsd =
236 cpu_to_le32(IWL_MVM_UAPSD_RX_DATA_TIMEOUT);
237 cmd->tx_data_timeout_uapsd =
238 cpu_to_le32(IWL_MVM_UAPSD_TX_DATA_TIMEOUT);
239 }
240
241 if (cmd->flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
242 cmd->heavy_tx_thld_packets =
243 IWL_MVM_PS_SNOOZE_HEAVY_TX_THLD_PACKETS;
244 cmd->heavy_rx_thld_packets =
245 IWL_MVM_PS_SNOOZE_HEAVY_RX_THLD_PACKETS;
246 } else {
247 cmd->heavy_tx_thld_packets =
248 IWL_MVM_PS_HEAVY_TX_THLD_PACKETS;
249 cmd->heavy_rx_thld_packets =
250 IWL_MVM_PS_HEAVY_RX_THLD_PACKETS;
251 }
252 cmd->heavy_tx_thld_percentage =
253 IWL_MVM_PS_HEAVY_TX_THLD_PERCENT;
254 cmd->heavy_rx_thld_percentage =
255 IWL_MVM_PS_HEAVY_RX_THLD_PERCENT;
256 }
257
258 static bool iwl_mvm_power_allow_uapsd(struct iwl_mvm *mvm,
259 struct ieee80211_vif *vif)
260 {
261 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
262
263 if (!memcmp(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid,
264 ETH_ALEN))
265 return false;
266
267 if (vif->p2p &&
268 !(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PS_UAPSD))
269 return false;
270 /*
271 * Avoid using uAPSD if P2P client is associated to GO that uses
272 * opportunistic power save. This is due to current FW limitation.
273 */
274 if (vif->p2p &&
275 (vif->bss_conf.p2p_noa_attr.oppps_ctwindow &
276 IEEE80211_P2P_OPPPS_ENABLE_BIT))
277 return false;
278
279 /*
280 * Avoid using uAPSD if client is in DCM -
281 * low latency issue in Miracast
282 */
283 if (iwl_mvm_phy_ctx_count(mvm) >= 2)
284 return false;
285
286 return true;
287 }
288
289 static int iwl_mvm_power_get_skip_over_dtim(int dtimper, int bi)
290 {
291 int numerator;
292 int dtim_interval = dtimper * bi;
293
294 if (WARN_ON(!dtim_interval))
295 return 0;
296
297 if (dtimper == 1) {
298 if (bi > 100)
299 numerator = 408;
300 else
301 numerator = 510;
302 } else if (dtimper < 10) {
303 numerator = 612;
304 } else {
305 return 0;
306 }
307 return max(1, (numerator / dtim_interval));
308 }
309
310 static bool iwl_mvm_power_is_radar(struct ieee80211_vif *vif)
311 {
312 struct ieee80211_chanctx_conf *chanctx_conf;
313 struct ieee80211_channel *chan;
314 bool radar_detect = false;
315
316 rcu_read_lock();
317 chanctx_conf = rcu_dereference(vif->chanctx_conf);
318 WARN_ON(!chanctx_conf);
319 if (chanctx_conf) {
320 chan = chanctx_conf->def.chan;
321 radar_detect = chan->flags & IEEE80211_CHAN_RADAR;
322 }
323 rcu_read_unlock();
324
325 return radar_detect;
326 }
327
328 static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm,
329 struct ieee80211_vif *vif,
330 struct iwl_mac_power_cmd *cmd)
331 {
332 int dtimper, dtimper_msec, bi;
333 int keep_alive;
334 bool radar_detect = false;
335 struct iwl_mvm_vif *mvmvif __maybe_unused =
336 iwl_mvm_vif_from_mac80211(vif);
337
338 cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
339 mvmvif->color));
340 dtimper = vif->bss_conf.dtim_period;
341 bi = vif->bss_conf.beacon_int;
342
343 /*
344 * Regardless of power management state the driver must set
345 * keep alive period. FW will use it for sending keep alive NDPs
346 * immediately after association. Check that keep alive period
347 * is at least 3 * DTIM
348 */
349 dtimper_msec = dtimper * bi;
350 keep_alive = max_t(int, 3 * dtimper_msec,
351 MSEC_PER_SEC * POWER_KEEP_ALIVE_PERIOD_SEC);
352 keep_alive = DIV_ROUND_UP(keep_alive, MSEC_PER_SEC);
353 cmd->keep_alive_seconds = cpu_to_le16(keep_alive);
354
355 if (mvm->ps_disabled)
356 return;
357
358 cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
359
360 if (!vif->bss_conf.ps || iwl_mvm_vif_low_latency(mvmvif) ||
361 !mvmvif->pm_enabled || iwl_mvm_tdls_sta_count(mvm, vif))
362 return;
363
364 cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK);
365
366 if (vif->bss_conf.beacon_rate &&
367 (vif->bss_conf.beacon_rate->bitrate == 10 ||
368 vif->bss_conf.beacon_rate->bitrate == 60)) {
369 cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
370 cmd->lprx_rssi_threshold = POWER_LPRX_RSSI_THRESHOLD;
371 }
372
373 /* Check if radar detection is required on current channel */
374 radar_detect = iwl_mvm_power_is_radar(vif);
375
376 /* Check skip over DTIM conditions */
377 if (!radar_detect && (dtimper < 10) &&
378 (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP ||
379 mvm->cur_ucode == IWL_UCODE_WOWLAN)) {
380 cmd->skip_dtim_periods =
381 iwl_mvm_power_get_skip_over_dtim(dtimper, bi);
382 if (cmd->skip_dtim_periods)
383 cmd->flags |=
384 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
385 }
386
387 if (mvm->cur_ucode != IWL_UCODE_WOWLAN) {
388 cmd->rx_data_timeout =
389 cpu_to_le32(IWL_MVM_DEFAULT_PS_RX_DATA_TIMEOUT);
390 cmd->tx_data_timeout =
391 cpu_to_le32(IWL_MVM_DEFAULT_PS_TX_DATA_TIMEOUT);
392 } else {
393 cmd->rx_data_timeout =
394 cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
395 cmd->tx_data_timeout =
396 cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
397 }
398
399 if (iwl_mvm_power_allow_uapsd(mvm, vif))
400 iwl_mvm_power_configure_uapsd(mvm, vif, cmd);
401
402 #ifdef CONFIG_IWLWIFI_DEBUGFS
403 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_KEEP_ALIVE)
404 cmd->keep_alive_seconds =
405 cpu_to_le16(mvmvif->dbgfs_pm.keep_alive_seconds);
406 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_OVER_DTIM) {
407 if (mvmvif->dbgfs_pm.skip_over_dtim)
408 cmd->flags |=
409 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
410 else
411 cmd->flags &=
412 cpu_to_le16(~POWER_FLAGS_SKIP_OVER_DTIM_MSK);
413 }
414 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_RX_DATA_TIMEOUT)
415 cmd->rx_data_timeout =
416 cpu_to_le32(mvmvif->dbgfs_pm.rx_data_timeout);
417 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_TX_DATA_TIMEOUT)
418 cmd->tx_data_timeout =
419 cpu_to_le32(mvmvif->dbgfs_pm.tx_data_timeout);
420 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS)
421 cmd->skip_dtim_periods = mvmvif->dbgfs_pm.skip_dtim_periods;
422 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_ENA) {
423 if (mvmvif->dbgfs_pm.lprx_ena)
424 cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
425 else
426 cmd->flags &= cpu_to_le16(~POWER_FLAGS_LPRX_ENA_MSK);
427 }
428 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD)
429 cmd->lprx_rssi_threshold = mvmvif->dbgfs_pm.lprx_rssi_threshold;
430 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SNOOZE_ENABLE) {
431 if (mvmvif->dbgfs_pm.snooze_ena)
432 cmd->flags |=
433 cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
434 else
435 cmd->flags &=
436 cpu_to_le16(~POWER_FLAGS_SNOOZE_ENA_MSK);
437 }
438 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_UAPSD_MISBEHAVING) {
439 u16 flag = POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK;
440 if (mvmvif->dbgfs_pm.uapsd_misbehaving)
441 cmd->flags |= cpu_to_le16(flag);
442 else
443 cmd->flags &= cpu_to_le16(flag);
444 }
445 #endif /* CONFIG_IWLWIFI_DEBUGFS */
446 }
447
448 static int iwl_mvm_power_send_cmd(struct iwl_mvm *mvm,
449 struct ieee80211_vif *vif)
450 {
451 struct iwl_mac_power_cmd cmd = {};
452
453 iwl_mvm_power_build_cmd(mvm, vif, &cmd);
454 iwl_mvm_power_log(mvm, &cmd);
455 #ifdef CONFIG_IWLWIFI_DEBUGFS
456 memcpy(&iwl_mvm_vif_from_mac80211(vif)->mac_pwr_cmd, &cmd, sizeof(cmd));
457 #endif
458
459 return iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, 0,
460 sizeof(cmd), &cmd);
461 }
462
463 int iwl_mvm_power_update_device(struct iwl_mvm *mvm)
464 {
465 struct iwl_device_power_cmd cmd = {
466 .flags = cpu_to_le16(DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK),
467 };
468
469 if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM)
470 mvm->ps_disabled = true;
471
472 if (mvm->ps_disabled)
473 cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_CAM_MSK);
474
475 #ifdef CONFIG_IWLWIFI_DEBUGFS
476 if ((mvm->cur_ucode == IWL_UCODE_WOWLAN) ? mvm->disable_power_off_d3 :
477 mvm->disable_power_off)
478 cmd.flags &=
479 cpu_to_le16(~DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK);
480 #endif
481 IWL_DEBUG_POWER(mvm,
482 "Sending device power command with flags = 0x%X\n",
483 cmd.flags);
484
485 return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, 0, sizeof(cmd),
486 &cmd);
487 }
488
489 void iwl_mvm_power_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
490 {
491 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
492
493 if (memcmp(vif->bss_conf.bssid, mvmvif->uapsd_misbehaving_bssid,
494 ETH_ALEN))
495 memset(mvmvif->uapsd_misbehaving_bssid, 0, ETH_ALEN);
496 }
497
498 static void iwl_mvm_power_uapsd_misbehav_ap_iterator(void *_data, u8 *mac,
499 struct ieee80211_vif *vif)
500 {
501 u8 *ap_sta_id = _data;
502 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
503
504 /* The ap_sta_id is not expected to change during current association
505 * so no explicit protection is needed
506 */
507 if (mvmvif->ap_sta_id == *ap_sta_id)
508 memcpy(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid,
509 ETH_ALEN);
510 }
511
512 int iwl_mvm_power_uapsd_misbehaving_ap_notif(struct iwl_mvm *mvm,
513 struct iwl_rx_cmd_buffer *rxb,
514 struct iwl_device_cmd *cmd)
515 {
516 struct iwl_rx_packet *pkt = rxb_addr(rxb);
517 struct iwl_uapsd_misbehaving_ap_notif *notif = (void *)pkt->data;
518 u8 ap_sta_id = le32_to_cpu(notif->sta_id);
519
520 ieee80211_iterate_active_interfaces_atomic(
521 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
522 iwl_mvm_power_uapsd_misbehav_ap_iterator, &ap_sta_id);
523
524 return 0;
525 }
526
527 struct iwl_power_vifs {
528 struct iwl_mvm *mvm;
529 struct ieee80211_vif *bf_vif;
530 struct ieee80211_vif *bss_vif;
531 struct ieee80211_vif *p2p_vif;
532 struct ieee80211_vif *ap_vif;
533 struct ieee80211_vif *monitor_vif;
534 bool p2p_active;
535 bool bss_active;
536 bool ap_active;
537 bool monitor_active;
538 };
539
540 static void iwl_mvm_power_disable_pm_iterator(void *_data, u8* mac,
541 struct ieee80211_vif *vif)
542 {
543 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
544
545 mvmvif->pm_enabled = false;
546 }
547
548 static void iwl_mvm_power_ps_disabled_iterator(void *_data, u8* mac,
549 struct ieee80211_vif *vif)
550 {
551 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
552 bool *disable_ps = _data;
553
554 if (mvmvif->phy_ctxt)
555 if (mvmvif->phy_ctxt->id < MAX_PHYS)
556 *disable_ps |= mvmvif->ps_disabled;
557 }
558
559 static void iwl_mvm_power_get_vifs_iterator(void *_data, u8 *mac,
560 struct ieee80211_vif *vif)
561 {
562 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
563 struct iwl_power_vifs *power_iterator = _data;
564
565 switch (ieee80211_vif_type_p2p(vif)) {
566 case NL80211_IFTYPE_P2P_DEVICE:
567 break;
568
569 case NL80211_IFTYPE_P2P_GO:
570 case NL80211_IFTYPE_AP:
571 /* only a single MAC of the same type */
572 WARN_ON(power_iterator->ap_vif);
573 power_iterator->ap_vif = vif;
574 if (mvmvif->phy_ctxt)
575 if (mvmvif->phy_ctxt->id < MAX_PHYS)
576 power_iterator->ap_active = true;
577 break;
578
579 case NL80211_IFTYPE_MONITOR:
580 /* only a single MAC of the same type */
581 WARN_ON(power_iterator->monitor_vif);
582 power_iterator->monitor_vif = vif;
583 if (mvmvif->phy_ctxt)
584 if (mvmvif->phy_ctxt->id < MAX_PHYS)
585 power_iterator->monitor_active = true;
586 break;
587
588 case NL80211_IFTYPE_P2P_CLIENT:
589 /* only a single MAC of the same type */
590 WARN_ON(power_iterator->p2p_vif);
591 power_iterator->p2p_vif = vif;
592 if (mvmvif->phy_ctxt)
593 if (mvmvif->phy_ctxt->id < MAX_PHYS)
594 power_iterator->p2p_active = true;
595 break;
596
597 case NL80211_IFTYPE_STATION:
598 /* only a single MAC of the same type */
599 WARN_ON(power_iterator->bss_vif);
600 power_iterator->bss_vif = vif;
601 if (mvmvif->phy_ctxt)
602 if (mvmvif->phy_ctxt->id < MAX_PHYS)
603 power_iterator->bss_active = true;
604
605 if (mvmvif->bf_data.bf_enabled &&
606 !WARN_ON(power_iterator->bf_vif))
607 power_iterator->bf_vif = vif;
608
609 break;
610
611 default:
612 break;
613 }
614 }
615
616 static void iwl_mvm_power_set_pm(struct iwl_mvm *mvm,
617 struct iwl_power_vifs *vifs)
618 {
619 struct iwl_mvm_vif *bss_mvmvif = NULL;
620 struct iwl_mvm_vif *p2p_mvmvif = NULL;
621 struct iwl_mvm_vif *ap_mvmvif = NULL;
622 bool client_same_channel = false;
623 bool ap_same_channel = false;
624
625 lockdep_assert_held(&mvm->mutex);
626
627 /* set pm_enable to false */
628 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
629 IEEE80211_IFACE_ITER_NORMAL,
630 iwl_mvm_power_disable_pm_iterator,
631 NULL);
632
633 if (vifs->bss_vif)
634 bss_mvmvif = iwl_mvm_vif_from_mac80211(vifs->bss_vif);
635
636 if (vifs->p2p_vif)
637 p2p_mvmvif = iwl_mvm_vif_from_mac80211(vifs->p2p_vif);
638
639 if (vifs->ap_vif)
640 ap_mvmvif = iwl_mvm_vif_from_mac80211(vifs->ap_vif);
641
642 /* enable PM on bss if bss stand alone */
643 if (vifs->bss_active && !vifs->p2p_active && !vifs->ap_active) {
644 bss_mvmvif->pm_enabled = true;
645 return;
646 }
647
648 /* enable PM on p2p if p2p stand alone */
649 if (vifs->p2p_active && !vifs->bss_active && !vifs->ap_active) {
650 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM)
651 p2p_mvmvif->pm_enabled = true;
652 return;
653 }
654
655 if (vifs->bss_active && vifs->p2p_active)
656 client_same_channel = (bss_mvmvif->phy_ctxt->id ==
657 p2p_mvmvif->phy_ctxt->id);
658 if (vifs->bss_active && vifs->ap_active)
659 ap_same_channel = (bss_mvmvif->phy_ctxt->id ==
660 ap_mvmvif->phy_ctxt->id);
661
662 /* clients are not stand alone: enable PM if DCM */
663 if (!(client_same_channel || ap_same_channel) &&
664 (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_DCM)) {
665 if (vifs->bss_active)
666 bss_mvmvif->pm_enabled = true;
667 if (vifs->p2p_active &&
668 (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM))
669 p2p_mvmvif->pm_enabled = true;
670 return;
671 }
672
673 /*
674 * There is only one channel in the system and there are only
675 * bss and p2p clients that share it
676 */
677 if (client_same_channel && !vifs->ap_active &&
678 (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_SCM)) {
679 /* share same channel*/
680 bss_mvmvif->pm_enabled = true;
681 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM)
682 p2p_mvmvif->pm_enabled = true;
683 }
684 }
685
686 #ifdef CONFIG_IWLWIFI_DEBUGFS
687 int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm,
688 struct ieee80211_vif *vif, char *buf,
689 int bufsz)
690 {
691 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
692 struct iwl_mac_power_cmd cmd = {};
693 int pos = 0;
694
695 mutex_lock(&mvm->mutex);
696 memcpy(&cmd, &mvmvif->mac_pwr_cmd, sizeof(cmd));
697 mutex_unlock(&mvm->mutex);
698
699 pos += scnprintf(buf+pos, bufsz-pos, "power_scheme = %d\n",
700 iwlmvm_mod_params.power_scheme);
701 pos += scnprintf(buf+pos, bufsz-pos, "flags = 0x%x\n",
702 le16_to_cpu(cmd.flags));
703 pos += scnprintf(buf+pos, bufsz-pos, "keep_alive = %d\n",
704 le16_to_cpu(cmd.keep_alive_seconds));
705
706 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK)))
707 return pos;
708
709 pos += scnprintf(buf+pos, bufsz-pos, "skip_over_dtim = %d\n",
710 (cmd.flags &
711 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK)) ? 1 : 0);
712 pos += scnprintf(buf+pos, bufsz-pos, "skip_dtim_periods = %d\n",
713 cmd.skip_dtim_periods);
714 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) {
715 pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout = %d\n",
716 le32_to_cpu(cmd.rx_data_timeout));
717 pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout = %d\n",
718 le32_to_cpu(cmd.tx_data_timeout));
719 }
720 if (cmd.flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
721 pos += scnprintf(buf+pos, bufsz-pos,
722 "lprx_rssi_threshold = %d\n",
723 cmd.lprx_rssi_threshold);
724
725 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)))
726 return pos;
727
728 pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout_uapsd = %d\n",
729 le32_to_cpu(cmd.rx_data_timeout_uapsd));
730 pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout_uapsd = %d\n",
731 le32_to_cpu(cmd.tx_data_timeout_uapsd));
732 pos += scnprintf(buf+pos, bufsz-pos, "qndp_tid = %d\n", cmd.qndp_tid);
733 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_ac_flags = 0x%x\n",
734 cmd.uapsd_ac_flags);
735 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_max_sp = %d\n",
736 cmd.uapsd_max_sp);
737 pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_packets = %d\n",
738 cmd.heavy_tx_thld_packets);
739 pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_packets = %d\n",
740 cmd.heavy_rx_thld_packets);
741 pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_percentage = %d\n",
742 cmd.heavy_tx_thld_percentage);
743 pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_percentage = %d\n",
744 cmd.heavy_rx_thld_percentage);
745 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_misbehaving_enable = %d\n",
746 (cmd.flags &
747 cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK)) ?
748 1 : 0);
749
750 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)))
751 return pos;
752
753 pos += scnprintf(buf+pos, bufsz-pos, "snooze_interval = %d\n",
754 cmd.snooze_interval);
755 pos += scnprintf(buf+pos, bufsz-pos, "snooze_window = %d\n",
756 cmd.snooze_window);
757
758 return pos;
759 }
760
761 void
762 iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
763 struct iwl_beacon_filter_cmd *cmd)
764 {
765 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
766 struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
767
768 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ENERGY_DELTA)
769 cmd->bf_energy_delta = cpu_to_le32(dbgfs_bf->bf_energy_delta);
770 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA)
771 cmd->bf_roaming_energy_delta =
772 cpu_to_le32(dbgfs_bf->bf_roaming_energy_delta);
773 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_STATE)
774 cmd->bf_roaming_state = cpu_to_le32(dbgfs_bf->bf_roaming_state);
775 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_THRESHOLD)
776 cmd->bf_temp_threshold =
777 cpu_to_le32(dbgfs_bf->bf_temp_threshold);
778 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_FAST_FILTER)
779 cmd->bf_temp_fast_filter =
780 cpu_to_le32(dbgfs_bf->bf_temp_fast_filter);
781 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_SLOW_FILTER)
782 cmd->bf_temp_slow_filter =
783 cpu_to_le32(dbgfs_bf->bf_temp_slow_filter);
784 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_DEBUG_FLAG)
785 cmd->bf_debug_flag = cpu_to_le32(dbgfs_bf->bf_debug_flag);
786 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ESCAPE_TIMER)
787 cmd->bf_escape_timer = cpu_to_le32(dbgfs_bf->bf_escape_timer);
788 if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ESCAPE_TIMER)
789 cmd->ba_escape_timer = cpu_to_le32(dbgfs_bf->ba_escape_timer);
790 if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT)
791 cmd->ba_enable_beacon_abort =
792 cpu_to_le32(dbgfs_bf->ba_enable_beacon_abort);
793 }
794 #endif
795
796 static int _iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
797 struct ieee80211_vif *vif,
798 struct iwl_beacon_filter_cmd *cmd,
799 u32 cmd_flags,
800 bool d0i3)
801 {
802 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
803 int ret;
804
805 if (mvmvif != mvm->bf_allowed_vif || !vif->bss_conf.dtim_period ||
806 vif->type != NL80211_IFTYPE_STATION || vif->p2p)
807 return 0;
808
809 iwl_mvm_beacon_filter_set_cqm_params(mvm, vif, cmd);
810 if (!d0i3)
811 iwl_mvm_beacon_filter_debugfs_parameters(vif, cmd);
812 ret = iwl_mvm_beacon_filter_send_cmd(mvm, cmd, cmd_flags);
813
814 /* don't change bf_enabled in case of temporary d0i3 configuration */
815 if (!ret && !d0i3)
816 mvmvif->bf_data.bf_enabled = true;
817
818 return ret;
819 }
820
821 int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
822 struct ieee80211_vif *vif,
823 u32 flags)
824 {
825 struct iwl_beacon_filter_cmd cmd = {
826 IWL_BF_CMD_CONFIG_DEFAULTS,
827 .bf_enable_beacon_filter = cpu_to_le32(1),
828 };
829
830 return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, flags, false);
831 }
832
833 static int iwl_mvm_update_beacon_abort(struct iwl_mvm *mvm,
834 struct ieee80211_vif *vif,
835 bool enable)
836 {
837 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
838 struct iwl_beacon_filter_cmd cmd = {
839 IWL_BF_CMD_CONFIG_DEFAULTS,
840 .bf_enable_beacon_filter = cpu_to_le32(1),
841 };
842
843 if (!mvmvif->bf_data.bf_enabled)
844 return 0;
845
846 if (mvm->cur_ucode == IWL_UCODE_WOWLAN)
847 cmd.ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER_D3);
848
849 mvmvif->bf_data.ba_enabled = enable;
850 return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, 0, false);
851 }
852
853 int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
854 struct ieee80211_vif *vif,
855 u32 flags)
856 {
857 struct iwl_beacon_filter_cmd cmd = {};
858 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
859 int ret;
860
861 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
862 return 0;
863
864 ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd, flags);
865
866 if (!ret)
867 mvmvif->bf_data.bf_enabled = false;
868
869 return ret;
870 }
871
872 static int iwl_mvm_power_set_ps(struct iwl_mvm *mvm)
873 {
874 bool disable_ps;
875 int ret;
876
877 /* disable PS if CAM */
878 disable_ps = (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM);
879 /* ...or if any of the vifs require PS to be off */
880 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
881 IEEE80211_IFACE_ITER_NORMAL,
882 iwl_mvm_power_ps_disabled_iterator,
883 &disable_ps);
884
885 /* update device power state if it has changed */
886 if (mvm->ps_disabled != disable_ps) {
887 bool old_ps_disabled = mvm->ps_disabled;
888
889 mvm->ps_disabled = disable_ps;
890 ret = iwl_mvm_power_update_device(mvm);
891 if (ret) {
892 mvm->ps_disabled = old_ps_disabled;
893 return ret;
894 }
895 }
896
897 return 0;
898 }
899
900 static int iwl_mvm_power_set_ba(struct iwl_mvm *mvm,
901 struct iwl_power_vifs *vifs)
902 {
903 struct iwl_mvm_vif *mvmvif;
904 bool ba_enable;
905
906 if (!vifs->bf_vif)
907 return 0;
908
909 mvmvif = iwl_mvm_vif_from_mac80211(vifs->bf_vif);
910
911 ba_enable = !(!mvmvif->pm_enabled || mvm->ps_disabled ||
912 !vifs->bf_vif->bss_conf.ps ||
913 iwl_mvm_vif_low_latency(mvmvif));
914
915 return iwl_mvm_update_beacon_abort(mvm, vifs->bf_vif, ba_enable);
916 }
917
918 int iwl_mvm_power_update_ps(struct iwl_mvm *mvm)
919 {
920 struct iwl_power_vifs vifs = {
921 .mvm = mvm,
922 };
923 int ret;
924
925 lockdep_assert_held(&mvm->mutex);
926
927 /* get vifs info */
928 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
929 IEEE80211_IFACE_ITER_NORMAL,
930 iwl_mvm_power_get_vifs_iterator, &vifs);
931
932 ret = iwl_mvm_power_set_ps(mvm);
933 if (ret)
934 return ret;
935
936 return iwl_mvm_power_set_ba(mvm, &vifs);
937 }
938
939 int iwl_mvm_power_update_mac(struct iwl_mvm *mvm)
940 {
941 struct iwl_power_vifs vifs = {
942 .mvm = mvm,
943 };
944 int ret;
945
946 lockdep_assert_held(&mvm->mutex);
947
948 /* get vifs info */
949 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
950 IEEE80211_IFACE_ITER_NORMAL,
951 iwl_mvm_power_get_vifs_iterator, &vifs);
952
953 iwl_mvm_power_set_pm(mvm, &vifs);
954
955 ret = iwl_mvm_power_set_ps(mvm);
956 if (ret)
957 return ret;
958
959 if (vifs.bss_vif) {
960 ret = iwl_mvm_power_send_cmd(mvm, vifs.bss_vif);
961 if (ret)
962 return ret;
963 }
964
965 if (vifs.p2p_vif) {
966 ret = iwl_mvm_power_send_cmd(mvm, vifs.p2p_vif);
967 if (ret)
968 return ret;
969 }
970
971 return iwl_mvm_power_set_ba(mvm, &vifs);
972 }
973
974 int iwl_mvm_update_d0i3_power_mode(struct iwl_mvm *mvm,
975 struct ieee80211_vif *vif,
976 bool enable, u32 flags)
977 {
978 int ret;
979 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
980 struct iwl_mac_power_cmd cmd = {};
981
982 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
983 return 0;
984
985 if (!vif->bss_conf.assoc)
986 return 0;
987
988 iwl_mvm_power_build_cmd(mvm, vif, &cmd);
989 if (enable) {
990 /* configure skip over dtim up to 306TU - 314 msec */
991 int dtimper = vif->bss_conf.dtim_period ?: 1;
992 int dtimper_tu = dtimper * vif->bss_conf.beacon_int;
993 bool radar_detect = iwl_mvm_power_is_radar(vif);
994
995 if (WARN_ON(!dtimper_tu))
996 return 0;
997
998 /* Check skip over DTIM conditions */
999 /* TODO: check that multicast wake lock is off */
1000 if (!radar_detect && (dtimper < 10)) {
1001 cmd.skip_dtim_periods = 306 / dtimper_tu;
1002 if (cmd.skip_dtim_periods)
1003 cmd.flags |= cpu_to_le16(
1004 POWER_FLAGS_SKIP_OVER_DTIM_MSK);
1005 }
1006 }
1007 iwl_mvm_power_log(mvm, &cmd);
1008 #ifdef CONFIG_IWLWIFI_DEBUGFS
1009 memcpy(&mvmvif->mac_pwr_cmd, &cmd, sizeof(cmd));
1010 #endif
1011 ret = iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, flags,
1012 sizeof(cmd), &cmd);
1013 if (ret)
1014 return ret;
1015
1016 /* configure beacon filtering */
1017 if (mvmvif != mvm->bf_allowed_vif)
1018 return 0;
1019
1020 if (enable) {
1021 struct iwl_beacon_filter_cmd cmd_bf = {
1022 IWL_BF_CMD_CONFIG_D0I3,
1023 .bf_enable_beacon_filter = cpu_to_le32(1),
1024 };
1025 ret = _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd_bf,
1026 flags, true);
1027 } else {
1028 if (mvmvif->bf_data.bf_enabled)
1029 ret = iwl_mvm_enable_beacon_filter(mvm, vif, flags);
1030 else
1031 ret = iwl_mvm_disable_beacon_filter(mvm, vif, flags);
1032 }
1033
1034 return ret;
1035 }
Linux kernel - Deliverables
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