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 * Copyright(c) 2015 Intel Deutschland GmbH
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * USA
25 *
26 * The full GNU General Public License is included in this distribution
27 * in the file called COPYING.
28 *
29 * Contact Information:
30 * Intel Linux Wireless <ilw@linux.intel.com>
31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
32 *
33 * BSD LICENSE
34 *
35 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
36 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
37 * Copyright(c) 2015 Intel Deutschland GmbH
38 * All rights reserved.
39 *
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
42 * are met:
43 *
44 * * Redistributions of source code must retain the above copyright
45 * notice, this list of conditions and the following disclaimer.
46 * * Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in
48 * the documentation and/or other materials provided with the
49 * distribution.
50 * * Neither the name Intel Corporation nor the names of its
51 * contributors may be used to endorse or promote products derived
52 * from this software without specific prior written permission.
53 *
54 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
55 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
56 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
57 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
58 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
59 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
60 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
61 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
62 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
63 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
64 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
65 *
66 *****************************************************************************/
67
68 #include <linux/kernel.h>
69 #include <linux/module.h>
70 #include <linux/slab.h>
71 #include <linux/etherdevice.h>
72
73 #include <net/mac80211.h>
74
75 #include "iwl-debug.h"
76 #include "mvm.h"
77 #include "iwl-modparams.h"
78 #include "fw-api-power.h"
79
80 #define POWER_KEEP_ALIVE_PERIOD_SEC 25
81
82 static
iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm * mvm,struct iwl_beacon_filter_cmd * cmd,u32 flags)83 int iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm *mvm,
84 struct iwl_beacon_filter_cmd *cmd,
85 u32 flags)
86 {
87 IWL_DEBUG_POWER(mvm, "ba_enable_beacon_abort is: %d\n",
88 le32_to_cpu(cmd->ba_enable_beacon_abort));
89 IWL_DEBUG_POWER(mvm, "ba_escape_timer is: %d\n",
90 le32_to_cpu(cmd->ba_escape_timer));
91 IWL_DEBUG_POWER(mvm, "bf_debug_flag is: %d\n",
92 le32_to_cpu(cmd->bf_debug_flag));
93 IWL_DEBUG_POWER(mvm, "bf_enable_beacon_filter is: %d\n",
94 le32_to_cpu(cmd->bf_enable_beacon_filter));
95 IWL_DEBUG_POWER(mvm, "bf_energy_delta is: %d\n",
96 le32_to_cpu(cmd->bf_energy_delta));
97 IWL_DEBUG_POWER(mvm, "bf_escape_timer is: %d\n",
98 le32_to_cpu(cmd->bf_escape_timer));
99 IWL_DEBUG_POWER(mvm, "bf_roaming_energy_delta is: %d\n",
100 le32_to_cpu(cmd->bf_roaming_energy_delta));
101 IWL_DEBUG_POWER(mvm, "bf_roaming_state is: %d\n",
102 le32_to_cpu(cmd->bf_roaming_state));
103 IWL_DEBUG_POWER(mvm, "bf_temp_threshold is: %d\n",
104 le32_to_cpu(cmd->bf_temp_threshold));
105 IWL_DEBUG_POWER(mvm, "bf_temp_fast_filter is: %d\n",
106 le32_to_cpu(cmd->bf_temp_fast_filter));
107 IWL_DEBUG_POWER(mvm, "bf_temp_slow_filter is: %d\n",
108 le32_to_cpu(cmd->bf_temp_slow_filter));
109
110 return iwl_mvm_send_cmd_pdu(mvm, REPLY_BEACON_FILTERING_CMD, flags,
111 sizeof(struct iwl_beacon_filter_cmd), cmd);
112 }
113
114 static
iwl_mvm_beacon_filter_set_cqm_params(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_beacon_filter_cmd * cmd,bool d0i3)115 void iwl_mvm_beacon_filter_set_cqm_params(struct iwl_mvm *mvm,
116 struct ieee80211_vif *vif,
117 struct iwl_beacon_filter_cmd *cmd,
118 bool d0i3)
119 {
120 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
121
122 if (vif->bss_conf.cqm_rssi_thold && !d0i3) {
123 cmd->bf_energy_delta =
124 cpu_to_le32(vif->bss_conf.cqm_rssi_hyst);
125 /* fw uses an absolute value for this */
126 cmd->bf_roaming_state =
127 cpu_to_le32(-vif->bss_conf.cqm_rssi_thold);
128 }
129 cmd->ba_enable_beacon_abort = cpu_to_le32(mvmvif->bf_data.ba_enabled);
130 }
131
iwl_mvm_power_log(struct iwl_mvm * mvm,struct iwl_mac_power_cmd * cmd)132 static void iwl_mvm_power_log(struct iwl_mvm *mvm,
133 struct iwl_mac_power_cmd *cmd)
134 {
135 IWL_DEBUG_POWER(mvm,
136 "Sending power table command on mac id 0x%X for power level %d, flags = 0x%X\n",
137 cmd->id_and_color, iwlmvm_mod_params.power_scheme,
138 le16_to_cpu(cmd->flags));
139 IWL_DEBUG_POWER(mvm, "Keep alive = %u sec\n",
140 le16_to_cpu(cmd->keep_alive_seconds));
141
142 if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK))) {
143 IWL_DEBUG_POWER(mvm, "Disable power management\n");
144 return;
145 }
146
147 IWL_DEBUG_POWER(mvm, "Rx timeout = %u usec\n",
148 le32_to_cpu(cmd->rx_data_timeout));
149 IWL_DEBUG_POWER(mvm, "Tx timeout = %u usec\n",
150 le32_to_cpu(cmd->tx_data_timeout));
151 if (cmd->flags & cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK))
152 IWL_DEBUG_POWER(mvm, "DTIM periods to skip = %u\n",
153 cmd->skip_dtim_periods);
154 if (cmd->flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
155 IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n",
156 cmd->lprx_rssi_threshold);
157 if (cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)) {
158 IWL_DEBUG_POWER(mvm, "uAPSD enabled\n");
159 IWL_DEBUG_POWER(mvm, "Rx timeout (uAPSD) = %u usec\n",
160 le32_to_cpu(cmd->rx_data_timeout_uapsd));
161 IWL_DEBUG_POWER(mvm, "Tx timeout (uAPSD) = %u usec\n",
162 le32_to_cpu(cmd->tx_data_timeout_uapsd));
163 IWL_DEBUG_POWER(mvm, "QNDP TID = %d\n", cmd->qndp_tid);
164 IWL_DEBUG_POWER(mvm, "ACs flags = 0x%x\n", cmd->uapsd_ac_flags);
165 IWL_DEBUG_POWER(mvm, "Max SP = %d\n", cmd->uapsd_max_sp);
166 }
167 }
168
iwl_mvm_power_configure_uapsd(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_mac_power_cmd * cmd)169 static void iwl_mvm_power_configure_uapsd(struct iwl_mvm *mvm,
170 struct ieee80211_vif *vif,
171 struct iwl_mac_power_cmd *cmd)
172 {
173 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
174 enum ieee80211_ac_numbers ac;
175 bool tid_found = false;
176
177 for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_BK; ac++) {
178 if (!mvmvif->queue_params[ac].uapsd)
179 continue;
180
181 if (mvm->cur_ucode != IWL_UCODE_WOWLAN)
182 cmd->flags |=
183 cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
184
185 cmd->uapsd_ac_flags |= BIT(ac);
186
187 /* QNDP TID - the highest TID with no admission control */
188 if (!tid_found && !mvmvif->queue_params[ac].acm) {
189 tid_found = true;
190 switch (ac) {
191 case IEEE80211_AC_VO:
192 cmd->qndp_tid = 6;
193 break;
194 case IEEE80211_AC_VI:
195 cmd->qndp_tid = 5;
196 break;
197 case IEEE80211_AC_BE:
198 cmd->qndp_tid = 0;
199 break;
200 case IEEE80211_AC_BK:
201 cmd->qndp_tid = 1;
202 break;
203 }
204 }
205 }
206
207 if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) {
208 #ifdef CONFIG_IWLWIFI_DEBUGFS
209 /* set advanced pm flag with no uapsd ACs to enable ps-poll */
210 if (mvmvif->dbgfs_pm.use_ps_poll)
211 cmd->flags |=
212 cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
213 #endif
214 return;
215 }
216
217 cmd->flags |= cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK);
218
219 if (cmd->uapsd_ac_flags == (BIT(IEEE80211_AC_VO) |
220 BIT(IEEE80211_AC_VI) |
221 BIT(IEEE80211_AC_BE) |
222 BIT(IEEE80211_AC_BK))) {
223 cmd->flags |= cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
224 cmd->snooze_interval = cpu_to_le16(IWL_MVM_PS_SNOOZE_INTERVAL);
225 cmd->snooze_window = (mvm->cur_ucode == IWL_UCODE_WOWLAN) ?
226 cpu_to_le16(IWL_MVM_WOWLAN_PS_SNOOZE_WINDOW) :
227 cpu_to_le16(IWL_MVM_PS_SNOOZE_WINDOW);
228 }
229
230 cmd->uapsd_max_sp = IWL_UAPSD_MAX_SP;
231
232 if (mvm->cur_ucode == IWL_UCODE_WOWLAN || cmd->flags &
233 cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
234 cmd->rx_data_timeout_uapsd =
235 cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
236 cmd->tx_data_timeout_uapsd =
237 cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
238 } else {
239 cmd->rx_data_timeout_uapsd =
240 cpu_to_le32(IWL_MVM_UAPSD_RX_DATA_TIMEOUT);
241 cmd->tx_data_timeout_uapsd =
242 cpu_to_le32(IWL_MVM_UAPSD_TX_DATA_TIMEOUT);
243 }
244
245 if (cmd->flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
246 cmd->heavy_tx_thld_packets =
247 IWL_MVM_PS_SNOOZE_HEAVY_TX_THLD_PACKETS;
248 cmd->heavy_rx_thld_packets =
249 IWL_MVM_PS_SNOOZE_HEAVY_RX_THLD_PACKETS;
250 } else {
251 cmd->heavy_tx_thld_packets =
252 IWL_MVM_PS_HEAVY_TX_THLD_PACKETS;
253 cmd->heavy_rx_thld_packets =
254 IWL_MVM_PS_HEAVY_RX_THLD_PACKETS;
255 }
256 cmd->heavy_tx_thld_percentage =
257 IWL_MVM_PS_HEAVY_TX_THLD_PERCENT;
258 cmd->heavy_rx_thld_percentage =
259 IWL_MVM_PS_HEAVY_RX_THLD_PERCENT;
260 }
261
iwl_mvm_power_allow_uapsd(struct iwl_mvm * mvm,struct ieee80211_vif * vif)262 static bool iwl_mvm_power_allow_uapsd(struct iwl_mvm *mvm,
263 struct ieee80211_vif *vif)
264 {
265 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
266
267 if (!memcmp(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid,
268 ETH_ALEN))
269 return false;
270
271 if (vif->p2p &&
272 !(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PS_UAPSD))
273 return false;
274 /*
275 * Avoid using uAPSD if P2P client is associated to GO that uses
276 * opportunistic power save. This is due to current FW limitation.
277 */
278 if (vif->p2p &&
279 (vif->bss_conf.p2p_noa_attr.oppps_ctwindow &
280 IEEE80211_P2P_OPPPS_ENABLE_BIT))
281 return false;
282
283 /*
284 * Avoid using uAPSD if client is in DCM -
285 * low latency issue in Miracast
286 */
287 if (iwl_mvm_phy_ctx_count(mvm) >= 2)
288 return false;
289
290 return true;
291 }
292
iwl_mvm_power_is_radar(struct ieee80211_vif * vif)293 static bool iwl_mvm_power_is_radar(struct ieee80211_vif *vif)
294 {
295 struct ieee80211_chanctx_conf *chanctx_conf;
296 struct ieee80211_channel *chan;
297 bool radar_detect = false;
298
299 rcu_read_lock();
300 chanctx_conf = rcu_dereference(vif->chanctx_conf);
301 WARN_ON(!chanctx_conf);
302 if (chanctx_conf) {
303 chan = chanctx_conf->def.chan;
304 radar_detect = chan->flags & IEEE80211_CHAN_RADAR;
305 }
306 rcu_read_unlock();
307
308 return radar_detect;
309 }
310
iwl_mvm_power_config_skip_dtim(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_mac_power_cmd * cmd,bool host_awake)311 static void iwl_mvm_power_config_skip_dtim(struct iwl_mvm *mvm,
312 struct ieee80211_vif *vif,
313 struct iwl_mac_power_cmd *cmd,
314 bool host_awake)
315 {
316 int dtimper = vif->bss_conf.dtim_period ?: 1;
317 int skip;
318
319 /* disable, in case we're supposed to override */
320 cmd->skip_dtim_periods = 0;
321 cmd->flags &= ~cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
322
323 if (iwl_mvm_power_is_radar(vif))
324 return;
325
326 if (dtimper >= 10)
327 return;
328
329 /* TODO: check that multicast wake lock is off */
330
331 if (host_awake) {
332 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_LP)
333 return;
334 skip = 2;
335 } else {
336 int dtimper_tu = dtimper * vif->bss_conf.beacon_int;
337
338 if (WARN_ON(!dtimper_tu))
339 return;
340 /* configure skip over dtim up to 306TU - 314 msec */
341 skip = max_t(u8, 1, 306 / dtimper_tu);
342 }
343
344 /* the firmware really expects "look at every X DTIMs", so add 1 */
345 cmd->skip_dtim_periods = 1 + skip;
346 cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
347 }
348
iwl_mvm_power_build_cmd(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_mac_power_cmd * cmd,bool host_awake)349 static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm,
350 struct ieee80211_vif *vif,
351 struct iwl_mac_power_cmd *cmd,
352 bool host_awake)
353 {
354 int dtimper, bi;
355 int keep_alive;
356 struct iwl_mvm_vif *mvmvif __maybe_unused =
357 iwl_mvm_vif_from_mac80211(vif);
358
359 cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
360 mvmvif->color));
361 dtimper = vif->bss_conf.dtim_period;
362 bi = vif->bss_conf.beacon_int;
363
364 /*
365 * Regardless of power management state the driver must set
366 * keep alive period. FW will use it for sending keep alive NDPs
367 * immediately after association. Check that keep alive period
368 * is at least 3 * DTIM
369 */
370 keep_alive = DIV_ROUND_UP(ieee80211_tu_to_usec(3 * dtimper * bi),
371 USEC_PER_SEC);
372 keep_alive = max(keep_alive, POWER_KEEP_ALIVE_PERIOD_SEC);
373 cmd->keep_alive_seconds = cpu_to_le16(keep_alive);
374
375 if (mvm->ps_disabled)
376 return;
377
378 cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
379
380 if (!vif->bss_conf.ps || !mvmvif->pm_enabled)
381 return;
382
383 if (iwl_mvm_vif_low_latency(mvmvif) && vif->p2p &&
384 (!fw_has_capa(&mvm->fw->ucode_capa,
385 IWL_UCODE_TLV_CAPA_SHORT_PM_TIMEOUTS) ||
386 !IWL_MVM_P2P_LOWLATENCY_PS_ENABLE))
387 return;
388
389 cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK);
390
391 if (vif->bss_conf.beacon_rate &&
392 (vif->bss_conf.beacon_rate->bitrate == 10 ||
393 vif->bss_conf.beacon_rate->bitrate == 60)) {
394 cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
395 cmd->lprx_rssi_threshold = POWER_LPRX_RSSI_THRESHOLD;
396 }
397
398 iwl_mvm_power_config_skip_dtim(mvm, vif, cmd, host_awake);
399
400 if (!host_awake) {
401 cmd->rx_data_timeout =
402 cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
403 cmd->tx_data_timeout =
404 cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
405 } else if (iwl_mvm_vif_low_latency(mvmvif) && vif->p2p &&
406 fw_has_capa(&mvm->fw->ucode_capa,
407 IWL_UCODE_TLV_CAPA_SHORT_PM_TIMEOUTS)) {
408 cmd->tx_data_timeout =
409 cpu_to_le32(IWL_MVM_SHORT_PS_TX_DATA_TIMEOUT);
410 cmd->rx_data_timeout =
411 cpu_to_le32(IWL_MVM_SHORT_PS_RX_DATA_TIMEOUT);
412 } else {
413 cmd->rx_data_timeout =
414 cpu_to_le32(IWL_MVM_DEFAULT_PS_RX_DATA_TIMEOUT);
415 cmd->tx_data_timeout =
416 cpu_to_le32(IWL_MVM_DEFAULT_PS_TX_DATA_TIMEOUT);
417 }
418
419 if (iwl_mvm_power_allow_uapsd(mvm, vif))
420 iwl_mvm_power_configure_uapsd(mvm, vif, cmd);
421
422 #ifdef CONFIG_IWLWIFI_DEBUGFS
423 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_KEEP_ALIVE)
424 cmd->keep_alive_seconds =
425 cpu_to_le16(mvmvif->dbgfs_pm.keep_alive_seconds);
426 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_OVER_DTIM) {
427 if (mvmvif->dbgfs_pm.skip_over_dtim)
428 cmd->flags |=
429 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
430 else
431 cmd->flags &=
432 cpu_to_le16(~POWER_FLAGS_SKIP_OVER_DTIM_MSK);
433 }
434 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_RX_DATA_TIMEOUT)
435 cmd->rx_data_timeout =
436 cpu_to_le32(mvmvif->dbgfs_pm.rx_data_timeout);
437 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_TX_DATA_TIMEOUT)
438 cmd->tx_data_timeout =
439 cpu_to_le32(mvmvif->dbgfs_pm.tx_data_timeout);
440 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS)
441 cmd->skip_dtim_periods = mvmvif->dbgfs_pm.skip_dtim_periods;
442 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_ENA) {
443 if (mvmvif->dbgfs_pm.lprx_ena)
444 cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
445 else
446 cmd->flags &= cpu_to_le16(~POWER_FLAGS_LPRX_ENA_MSK);
447 }
448 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD)
449 cmd->lprx_rssi_threshold = mvmvif->dbgfs_pm.lprx_rssi_threshold;
450 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SNOOZE_ENABLE) {
451 if (mvmvif->dbgfs_pm.snooze_ena)
452 cmd->flags |=
453 cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
454 else
455 cmd->flags &=
456 cpu_to_le16(~POWER_FLAGS_SNOOZE_ENA_MSK);
457 }
458 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_UAPSD_MISBEHAVING) {
459 u16 flag = POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK;
460 if (mvmvif->dbgfs_pm.uapsd_misbehaving)
461 cmd->flags |= cpu_to_le16(flag);
462 else
463 cmd->flags &= cpu_to_le16(flag);
464 }
465 #endif /* CONFIG_IWLWIFI_DEBUGFS */
466 }
467
iwl_mvm_power_send_cmd(struct iwl_mvm * mvm,struct ieee80211_vif * vif)468 static int iwl_mvm_power_send_cmd(struct iwl_mvm *mvm,
469 struct ieee80211_vif *vif)
470 {
471 struct iwl_mac_power_cmd cmd = {};
472
473 iwl_mvm_power_build_cmd(mvm, vif, &cmd,
474 mvm->cur_ucode != IWL_UCODE_WOWLAN);
475 iwl_mvm_power_log(mvm, &cmd);
476 #ifdef CONFIG_IWLWIFI_DEBUGFS
477 memcpy(&iwl_mvm_vif_from_mac80211(vif)->mac_pwr_cmd, &cmd, sizeof(cmd));
478 #endif
479
480 return iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, 0,
481 sizeof(cmd), &cmd);
482 }
483
iwl_mvm_power_update_device(struct iwl_mvm * mvm)484 int iwl_mvm_power_update_device(struct iwl_mvm *mvm)
485 {
486 struct iwl_device_power_cmd cmd = {
487 .flags = 0,
488 };
489
490 if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM)
491 mvm->ps_disabled = true;
492
493 if (!mvm->ps_disabled)
494 cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK);
495
496 #ifdef CONFIG_IWLWIFI_DEBUGFS
497 if ((mvm->cur_ucode == IWL_UCODE_WOWLAN) ? mvm->disable_power_off_d3 :
498 mvm->disable_power_off)
499 cmd.flags &=
500 cpu_to_le16(~DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK);
501 #endif
502 IWL_DEBUG_POWER(mvm,
503 "Sending device power command with flags = 0x%X\n",
504 cmd.flags);
505
506 return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, 0, sizeof(cmd),
507 &cmd);
508 }
509
iwl_mvm_power_vif_assoc(struct iwl_mvm * mvm,struct ieee80211_vif * vif)510 void iwl_mvm_power_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
511 {
512 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
513
514 if (memcmp(vif->bss_conf.bssid, mvmvif->uapsd_misbehaving_bssid,
515 ETH_ALEN))
516 eth_zero_addr(mvmvif->uapsd_misbehaving_bssid);
517 }
518
iwl_mvm_power_uapsd_misbehav_ap_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)519 static void iwl_mvm_power_uapsd_misbehav_ap_iterator(void *_data, u8 *mac,
520 struct ieee80211_vif *vif)
521 {
522 u8 *ap_sta_id = _data;
523 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
524
525 /* The ap_sta_id is not expected to change during current association
526 * so no explicit protection is needed
527 */
528 if (mvmvif->ap_sta_id == *ap_sta_id)
529 memcpy(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid,
530 ETH_ALEN);
531 }
532
iwl_mvm_power_uapsd_misbehaving_ap_notif(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)533 void iwl_mvm_power_uapsd_misbehaving_ap_notif(struct iwl_mvm *mvm,
534 struct iwl_rx_cmd_buffer *rxb)
535 {
536 struct iwl_rx_packet *pkt = rxb_addr(rxb);
537 struct iwl_uapsd_misbehaving_ap_notif *notif = (void *)pkt->data;
538 u8 ap_sta_id = le32_to_cpu(notif->sta_id);
539
540 ieee80211_iterate_active_interfaces_atomic(
541 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
542 iwl_mvm_power_uapsd_misbehav_ap_iterator, &ap_sta_id);
543 }
544
545 struct iwl_power_vifs {
546 struct iwl_mvm *mvm;
547 struct ieee80211_vif *bf_vif;
548 struct ieee80211_vif *bss_vif;
549 struct ieee80211_vif *p2p_vif;
550 struct ieee80211_vif *ap_vif;
551 struct ieee80211_vif *monitor_vif;
552 bool p2p_active;
553 bool bss_active;
554 bool ap_active;
555 bool monitor_active;
556 };
557
iwl_mvm_power_disable_pm_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)558 static void iwl_mvm_power_disable_pm_iterator(void *_data, u8* mac,
559 struct ieee80211_vif *vif)
560 {
561 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
562
563 mvmvif->pm_enabled = false;
564 }
565
iwl_mvm_power_ps_disabled_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)566 static void iwl_mvm_power_ps_disabled_iterator(void *_data, u8* mac,
567 struct ieee80211_vif *vif)
568 {
569 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
570 bool *disable_ps = _data;
571
572 if (mvmvif->phy_ctxt)
573 if (mvmvif->phy_ctxt->id < MAX_PHYS)
574 *disable_ps |= mvmvif->ps_disabled;
575 }
576
iwl_mvm_power_get_vifs_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)577 static void iwl_mvm_power_get_vifs_iterator(void *_data, u8 *mac,
578 struct ieee80211_vif *vif)
579 {
580 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
581 struct iwl_power_vifs *power_iterator = _data;
582
583 switch (ieee80211_vif_type_p2p(vif)) {
584 case NL80211_IFTYPE_P2P_DEVICE:
585 break;
586
587 case NL80211_IFTYPE_P2P_GO:
588 case NL80211_IFTYPE_AP:
589 /* only a single MAC of the same type */
590 WARN_ON(power_iterator->ap_vif);
591 power_iterator->ap_vif = vif;
592 if (mvmvif->phy_ctxt)
593 if (mvmvif->phy_ctxt->id < MAX_PHYS)
594 power_iterator->ap_active = true;
595 break;
596
597 case NL80211_IFTYPE_MONITOR:
598 /* only a single MAC of the same type */
599 WARN_ON(power_iterator->monitor_vif);
600 power_iterator->monitor_vif = vif;
601 if (mvmvif->phy_ctxt)
602 if (mvmvif->phy_ctxt->id < MAX_PHYS)
603 power_iterator->monitor_active = true;
604 break;
605
606 case NL80211_IFTYPE_P2P_CLIENT:
607 /* only a single MAC of the same type */
608 WARN_ON(power_iterator->p2p_vif);
609 power_iterator->p2p_vif = vif;
610 if (mvmvif->phy_ctxt)
611 if (mvmvif->phy_ctxt->id < MAX_PHYS)
612 power_iterator->p2p_active = true;
613 break;
614
615 case NL80211_IFTYPE_STATION:
616 /* only a single MAC of the same type */
617 WARN_ON(power_iterator->bss_vif);
618 power_iterator->bss_vif = vif;
619 if (mvmvif->phy_ctxt)
620 if (mvmvif->phy_ctxt->id < MAX_PHYS)
621 power_iterator->bss_active = true;
622
623 if (mvmvif->bf_data.bf_enabled &&
624 !WARN_ON(power_iterator->bf_vif))
625 power_iterator->bf_vif = vif;
626
627 break;
628
629 default:
630 break;
631 }
632 }
633
iwl_mvm_power_set_pm(struct iwl_mvm * mvm,struct iwl_power_vifs * vifs)634 static void iwl_mvm_power_set_pm(struct iwl_mvm *mvm,
635 struct iwl_power_vifs *vifs)
636 {
637 struct iwl_mvm_vif *bss_mvmvif = NULL;
638 struct iwl_mvm_vif *p2p_mvmvif = NULL;
639 struct iwl_mvm_vif *ap_mvmvif = NULL;
640 bool client_same_channel = false;
641 bool ap_same_channel = false;
642
643 lockdep_assert_held(&mvm->mutex);
644
645 /* set pm_enable to false */
646 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
647 IEEE80211_IFACE_ITER_NORMAL,
648 iwl_mvm_power_disable_pm_iterator,
649 NULL);
650
651 if (vifs->bss_vif)
652 bss_mvmvif = iwl_mvm_vif_from_mac80211(vifs->bss_vif);
653
654 if (vifs->p2p_vif)
655 p2p_mvmvif = iwl_mvm_vif_from_mac80211(vifs->p2p_vif);
656
657 if (vifs->ap_vif)
658 ap_mvmvif = iwl_mvm_vif_from_mac80211(vifs->ap_vif);
659
660 /* don't allow PM if any TDLS stations exist */
661 if (iwl_mvm_tdls_sta_count(mvm, NULL))
662 return;
663
664 /* enable PM on bss if bss stand alone */
665 if (vifs->bss_active && !vifs->p2p_active && !vifs->ap_active) {
666 bss_mvmvif->pm_enabled = true;
667 return;
668 }
669
670 /* enable PM on p2p if p2p stand alone */
671 if (vifs->p2p_active && !vifs->bss_active && !vifs->ap_active) {
672 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM)
673 p2p_mvmvif->pm_enabled = true;
674 return;
675 }
676
677 if (vifs->bss_active && vifs->p2p_active)
678 client_same_channel = (bss_mvmvif->phy_ctxt->id ==
679 p2p_mvmvif->phy_ctxt->id);
680 if (vifs->bss_active && vifs->ap_active)
681 ap_same_channel = (bss_mvmvif->phy_ctxt->id ==
682 ap_mvmvif->phy_ctxt->id);
683
684 /* clients are not stand alone: enable PM if DCM */
685 if (!(client_same_channel || ap_same_channel) &&
686 (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_DCM)) {
687 if (vifs->bss_active)
688 bss_mvmvif->pm_enabled = true;
689 if (vifs->p2p_active &&
690 (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM))
691 p2p_mvmvif->pm_enabled = true;
692 return;
693 }
694
695 /*
696 * There is only one channel in the system and there are only
697 * bss and p2p clients that share it
698 */
699 if (client_same_channel && !vifs->ap_active &&
700 (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_SCM)) {
701 /* share same channel*/
702 bss_mvmvif->pm_enabled = true;
703 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM)
704 p2p_mvmvif->pm_enabled = true;
705 }
706 }
707
708 #ifdef CONFIG_IWLWIFI_DEBUGFS
iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm * mvm,struct ieee80211_vif * vif,char * buf,int bufsz)709 int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm,
710 struct ieee80211_vif *vif, char *buf,
711 int bufsz)
712 {
713 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
714 struct iwl_mac_power_cmd cmd = {};
715 int pos = 0;
716
717 mutex_lock(&mvm->mutex);
718 memcpy(&cmd, &mvmvif->mac_pwr_cmd, sizeof(cmd));
719 mutex_unlock(&mvm->mutex);
720
721 pos += scnprintf(buf+pos, bufsz-pos, "power_scheme = %d\n",
722 iwlmvm_mod_params.power_scheme);
723 pos += scnprintf(buf+pos, bufsz-pos, "flags = 0x%x\n",
724 le16_to_cpu(cmd.flags));
725 pos += scnprintf(buf+pos, bufsz-pos, "keep_alive = %d\n",
726 le16_to_cpu(cmd.keep_alive_seconds));
727
728 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK)))
729 return pos;
730
731 pos += scnprintf(buf+pos, bufsz-pos, "skip_over_dtim = %d\n",
732 (cmd.flags &
733 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK)) ? 1 : 0);
734 pos += scnprintf(buf+pos, bufsz-pos, "skip_dtim_periods = %d\n",
735 cmd.skip_dtim_periods);
736 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) {
737 pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout = %d\n",
738 le32_to_cpu(cmd.rx_data_timeout));
739 pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout = %d\n",
740 le32_to_cpu(cmd.tx_data_timeout));
741 }
742 if (cmd.flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
743 pos += scnprintf(buf+pos, bufsz-pos,
744 "lprx_rssi_threshold = %d\n",
745 cmd.lprx_rssi_threshold);
746
747 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)))
748 return pos;
749
750 pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout_uapsd = %d\n",
751 le32_to_cpu(cmd.rx_data_timeout_uapsd));
752 pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout_uapsd = %d\n",
753 le32_to_cpu(cmd.tx_data_timeout_uapsd));
754 pos += scnprintf(buf+pos, bufsz-pos, "qndp_tid = %d\n", cmd.qndp_tid);
755 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_ac_flags = 0x%x\n",
756 cmd.uapsd_ac_flags);
757 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_max_sp = %d\n",
758 cmd.uapsd_max_sp);
759 pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_packets = %d\n",
760 cmd.heavy_tx_thld_packets);
761 pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_packets = %d\n",
762 cmd.heavy_rx_thld_packets);
763 pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_percentage = %d\n",
764 cmd.heavy_tx_thld_percentage);
765 pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_percentage = %d\n",
766 cmd.heavy_rx_thld_percentage);
767 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_misbehaving_enable = %d\n",
768 (cmd.flags &
769 cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK)) ?
770 1 : 0);
771
772 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)))
773 return pos;
774
775 pos += scnprintf(buf+pos, bufsz-pos, "snooze_interval = %d\n",
776 cmd.snooze_interval);
777 pos += scnprintf(buf+pos, bufsz-pos, "snooze_window = %d\n",
778 cmd.snooze_window);
779
780 return pos;
781 }
782
783 void
iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif * vif,struct iwl_beacon_filter_cmd * cmd)784 iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
785 struct iwl_beacon_filter_cmd *cmd)
786 {
787 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
788 struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
789
790 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ENERGY_DELTA)
791 cmd->bf_energy_delta = cpu_to_le32(dbgfs_bf->bf_energy_delta);
792 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA)
793 cmd->bf_roaming_energy_delta =
794 cpu_to_le32(dbgfs_bf->bf_roaming_energy_delta);
795 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_STATE)
796 cmd->bf_roaming_state = cpu_to_le32(dbgfs_bf->bf_roaming_state);
797 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_THRESHOLD)
798 cmd->bf_temp_threshold =
799 cpu_to_le32(dbgfs_bf->bf_temp_threshold);
800 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_FAST_FILTER)
801 cmd->bf_temp_fast_filter =
802 cpu_to_le32(dbgfs_bf->bf_temp_fast_filter);
803 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_SLOW_FILTER)
804 cmd->bf_temp_slow_filter =
805 cpu_to_le32(dbgfs_bf->bf_temp_slow_filter);
806 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_DEBUG_FLAG)
807 cmd->bf_debug_flag = cpu_to_le32(dbgfs_bf->bf_debug_flag);
808 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ESCAPE_TIMER)
809 cmd->bf_escape_timer = cpu_to_le32(dbgfs_bf->bf_escape_timer);
810 if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ESCAPE_TIMER)
811 cmd->ba_escape_timer = cpu_to_le32(dbgfs_bf->ba_escape_timer);
812 if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT)
813 cmd->ba_enable_beacon_abort =
814 cpu_to_le32(dbgfs_bf->ba_enable_beacon_abort);
815 }
816 #endif
817
_iwl_mvm_enable_beacon_filter(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_beacon_filter_cmd * cmd,u32 cmd_flags,bool d0i3)818 static int _iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
819 struct ieee80211_vif *vif,
820 struct iwl_beacon_filter_cmd *cmd,
821 u32 cmd_flags,
822 bool d0i3)
823 {
824 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
825 int ret;
826
827 if (mvmvif != mvm->bf_allowed_vif || !vif->bss_conf.dtim_period ||
828 vif->type != NL80211_IFTYPE_STATION || vif->p2p)
829 return 0;
830
831 iwl_mvm_beacon_filter_set_cqm_params(mvm, vif, cmd, d0i3);
832 if (!d0i3)
833 iwl_mvm_beacon_filter_debugfs_parameters(vif, cmd);
834 ret = iwl_mvm_beacon_filter_send_cmd(mvm, cmd, cmd_flags);
835
836 /* don't change bf_enabled in case of temporary d0i3 configuration */
837 if (!ret && !d0i3)
838 mvmvif->bf_data.bf_enabled = true;
839
840 return ret;
841 }
842
iwl_mvm_enable_beacon_filter(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u32 flags)843 int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
844 struct ieee80211_vif *vif,
845 u32 flags)
846 {
847 struct iwl_beacon_filter_cmd cmd = {
848 IWL_BF_CMD_CONFIG_DEFAULTS,
849 .bf_enable_beacon_filter = cpu_to_le32(1),
850 };
851
852 return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, flags, false);
853 }
854
iwl_mvm_update_beacon_abort(struct iwl_mvm * mvm,struct ieee80211_vif * vif,bool enable)855 static int iwl_mvm_update_beacon_abort(struct iwl_mvm *mvm,
856 struct ieee80211_vif *vif,
857 bool enable)
858 {
859 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
860 struct iwl_beacon_filter_cmd cmd = {
861 IWL_BF_CMD_CONFIG_DEFAULTS,
862 .bf_enable_beacon_filter = cpu_to_le32(1),
863 };
864
865 if (!mvmvif->bf_data.bf_enabled)
866 return 0;
867
868 if (mvm->cur_ucode == IWL_UCODE_WOWLAN)
869 cmd.ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER_D3);
870
871 mvmvif->bf_data.ba_enabled = enable;
872 return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, 0, false);
873 }
874
iwl_mvm_disable_beacon_filter(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u32 flags)875 int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
876 struct ieee80211_vif *vif,
877 u32 flags)
878 {
879 struct iwl_beacon_filter_cmd cmd = {};
880 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
881 int ret;
882
883 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
884 return 0;
885
886 ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd, flags);
887
888 if (!ret)
889 mvmvif->bf_data.bf_enabled = false;
890
891 return ret;
892 }
893
iwl_mvm_power_set_ps(struct iwl_mvm * mvm)894 static int iwl_mvm_power_set_ps(struct iwl_mvm *mvm)
895 {
896 bool disable_ps;
897 int ret;
898
899 /* disable PS if CAM */
900 disable_ps = (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM);
901 /* ...or if any of the vifs require PS to be off */
902 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
903 IEEE80211_IFACE_ITER_NORMAL,
904 iwl_mvm_power_ps_disabled_iterator,
905 &disable_ps);
906
907 /* update device power state if it has changed */
908 if (mvm->ps_disabled != disable_ps) {
909 bool old_ps_disabled = mvm->ps_disabled;
910
911 mvm->ps_disabled = disable_ps;
912 ret = iwl_mvm_power_update_device(mvm);
913 if (ret) {
914 mvm->ps_disabled = old_ps_disabled;
915 return ret;
916 }
917 }
918
919 return 0;
920 }
921
iwl_mvm_power_set_ba(struct iwl_mvm * mvm,struct iwl_power_vifs * vifs)922 static int iwl_mvm_power_set_ba(struct iwl_mvm *mvm,
923 struct iwl_power_vifs *vifs)
924 {
925 struct iwl_mvm_vif *mvmvif;
926 bool ba_enable;
927
928 if (!vifs->bf_vif)
929 return 0;
930
931 mvmvif = iwl_mvm_vif_from_mac80211(vifs->bf_vif);
932
933 ba_enable = !(!mvmvif->pm_enabled || mvm->ps_disabled ||
934 !vifs->bf_vif->bss_conf.ps ||
935 iwl_mvm_vif_low_latency(mvmvif));
936
937 return iwl_mvm_update_beacon_abort(mvm, vifs->bf_vif, ba_enable);
938 }
939
iwl_mvm_power_update_ps(struct iwl_mvm * mvm)940 int iwl_mvm_power_update_ps(struct iwl_mvm *mvm)
941 {
942 struct iwl_power_vifs vifs = {
943 .mvm = mvm,
944 };
945 int ret;
946
947 lockdep_assert_held(&mvm->mutex);
948
949 /* get vifs info */
950 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
951 IEEE80211_IFACE_ITER_NORMAL,
952 iwl_mvm_power_get_vifs_iterator, &vifs);
953
954 ret = iwl_mvm_power_set_ps(mvm);
955 if (ret)
956 return ret;
957
958 return iwl_mvm_power_set_ba(mvm, &vifs);
959 }
960
iwl_mvm_power_update_mac(struct iwl_mvm * mvm)961 int iwl_mvm_power_update_mac(struct iwl_mvm *mvm)
962 {
963 struct iwl_power_vifs vifs = {
964 .mvm = mvm,
965 };
966 int ret;
967
968 lockdep_assert_held(&mvm->mutex);
969
970 /* get vifs info */
971 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
972 IEEE80211_IFACE_ITER_NORMAL,
973 iwl_mvm_power_get_vifs_iterator, &vifs);
974
975 iwl_mvm_power_set_pm(mvm, &vifs);
976
977 ret = iwl_mvm_power_set_ps(mvm);
978 if (ret)
979 return ret;
980
981 if (vifs.bss_vif) {
982 ret = iwl_mvm_power_send_cmd(mvm, vifs.bss_vif);
983 if (ret)
984 return ret;
985 }
986
987 if (vifs.p2p_vif) {
988 ret = iwl_mvm_power_send_cmd(mvm, vifs.p2p_vif);
989 if (ret)
990 return ret;
991 }
992
993 return iwl_mvm_power_set_ba(mvm, &vifs);
994 }
995
iwl_mvm_update_d0i3_power_mode(struct iwl_mvm * mvm,struct ieee80211_vif * vif,bool enable,u32 flags)996 int iwl_mvm_update_d0i3_power_mode(struct iwl_mvm *mvm,
997 struct ieee80211_vif *vif,
998 bool enable, u32 flags)
999 {
1000 int ret;
1001 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1002 struct iwl_mac_power_cmd cmd = {};
1003
1004 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
1005 return 0;
1006
1007 if (!vif->bss_conf.assoc)
1008 return 0;
1009
1010 iwl_mvm_power_build_cmd(mvm, vif, &cmd, !enable);
1011
1012 iwl_mvm_power_log(mvm, &cmd);
1013 #ifdef CONFIG_IWLWIFI_DEBUGFS
1014 memcpy(&mvmvif->mac_pwr_cmd, &cmd, sizeof(cmd));
1015 #endif
1016 ret = iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, flags,
1017 sizeof(cmd), &cmd);
1018 if (ret)
1019 return ret;
1020
1021 /* configure beacon filtering */
1022 if (mvmvif != mvm->bf_allowed_vif)
1023 return 0;
1024
1025 if (enable) {
1026 struct iwl_beacon_filter_cmd cmd_bf = {
1027 IWL_BF_CMD_CONFIG_D0I3,
1028 .bf_enable_beacon_filter = cpu_to_le32(1),
1029 };
1030 ret = _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd_bf,
1031 flags, true);
1032 } else {
1033 if (mvmvif->bf_data.bf_enabled)
1034 ret = iwl_mvm_enable_beacon_filter(mvm, vif, flags);
1035 else
1036 ret = iwl_mvm_disable_beacon_filter(mvm, vif, flags);
1037 }
1038
1039 return ret;
1040 }
1041