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 #include <linux/etherdevice.h>
70
71 #include <net/mac80211.h>
72
73 #include "iwl-debug.h"
74 #include "mvm.h"
75 #include "iwl-modparams.h"
76 #include "fw-api-power.h"
77
78 #define POWER_KEEP_ALIVE_PERIOD_SEC 25
79
80 static
iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm * mvm,struct iwl_beacon_filter_cmd * cmd,u32 flags)81 int iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm *mvm,
82 struct iwl_beacon_filter_cmd *cmd,
83 u32 flags)
84 {
85 IWL_DEBUG_POWER(mvm, "ba_enable_beacon_abort is: %d\n",
86 le32_to_cpu(cmd->ba_enable_beacon_abort));
87 IWL_DEBUG_POWER(mvm, "ba_escape_timer is: %d\n",
88 le32_to_cpu(cmd->ba_escape_timer));
89 IWL_DEBUG_POWER(mvm, "bf_debug_flag is: %d\n",
90 le32_to_cpu(cmd->bf_debug_flag));
91 IWL_DEBUG_POWER(mvm, "bf_enable_beacon_filter is: %d\n",
92 le32_to_cpu(cmd->bf_enable_beacon_filter));
93 IWL_DEBUG_POWER(mvm, "bf_energy_delta is: %d\n",
94 le32_to_cpu(cmd->bf_energy_delta));
95 IWL_DEBUG_POWER(mvm, "bf_escape_timer is: %d\n",
96 le32_to_cpu(cmd->bf_escape_timer));
97 IWL_DEBUG_POWER(mvm, "bf_roaming_energy_delta is: %d\n",
98 le32_to_cpu(cmd->bf_roaming_energy_delta));
99 IWL_DEBUG_POWER(mvm, "bf_roaming_state is: %d\n",
100 le32_to_cpu(cmd->bf_roaming_state));
101 IWL_DEBUG_POWER(mvm, "bf_temp_threshold is: %d\n",
102 le32_to_cpu(cmd->bf_temp_threshold));
103 IWL_DEBUG_POWER(mvm, "bf_temp_fast_filter is: %d\n",
104 le32_to_cpu(cmd->bf_temp_fast_filter));
105 IWL_DEBUG_POWER(mvm, "bf_temp_slow_filter is: %d\n",
106 le32_to_cpu(cmd->bf_temp_slow_filter));
107
108 return iwl_mvm_send_cmd_pdu(mvm, REPLY_BEACON_FILTERING_CMD, flags,
109 sizeof(struct iwl_beacon_filter_cmd), cmd);
110 }
111
112 static
iwl_mvm_beacon_filter_set_cqm_params(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_beacon_filter_cmd * cmd)113 void iwl_mvm_beacon_filter_set_cqm_params(struct iwl_mvm *mvm,
114 struct ieee80211_vif *vif,
115 struct iwl_beacon_filter_cmd *cmd)
116 {
117 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
118
119 if (vif->bss_conf.cqm_rssi_thold) {
120 cmd->bf_energy_delta =
121 cpu_to_le32(vif->bss_conf.cqm_rssi_hyst);
122 /* fw uses an absolute value for this */
123 cmd->bf_roaming_state =
124 cpu_to_le32(-vif->bss_conf.cqm_rssi_thold);
125 }
126 cmd->ba_enable_beacon_abort = cpu_to_le32(mvmvif->bf_data.ba_enabled);
127 }
128
iwl_mvm_power_log(struct iwl_mvm * mvm,struct iwl_mac_power_cmd * cmd)129 static void iwl_mvm_power_log(struct iwl_mvm *mvm,
130 struct iwl_mac_power_cmd *cmd)
131 {
132 IWL_DEBUG_POWER(mvm,
133 "Sending power table command on mac id 0x%X for power level %d, flags = 0x%X\n",
134 cmd->id_and_color, iwlmvm_mod_params.power_scheme,
135 le16_to_cpu(cmd->flags));
136 IWL_DEBUG_POWER(mvm, "Keep alive = %u sec\n",
137 le16_to_cpu(cmd->keep_alive_seconds));
138
139 if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK))) {
140 IWL_DEBUG_POWER(mvm, "Disable power management\n");
141 return;
142 }
143
144 IWL_DEBUG_POWER(mvm, "Rx timeout = %u usec\n",
145 le32_to_cpu(cmd->rx_data_timeout));
146 IWL_DEBUG_POWER(mvm, "Tx timeout = %u usec\n",
147 le32_to_cpu(cmd->tx_data_timeout));
148 if (cmd->flags & cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK))
149 IWL_DEBUG_POWER(mvm, "DTIM periods to skip = %u\n",
150 cmd->skip_dtim_periods);
151 if (cmd->flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
152 IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n",
153 cmd->lprx_rssi_threshold);
154 if (cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)) {
155 IWL_DEBUG_POWER(mvm, "uAPSD enabled\n");
156 IWL_DEBUG_POWER(mvm, "Rx timeout (uAPSD) = %u usec\n",
157 le32_to_cpu(cmd->rx_data_timeout_uapsd));
158 IWL_DEBUG_POWER(mvm, "Tx timeout (uAPSD) = %u usec\n",
159 le32_to_cpu(cmd->tx_data_timeout_uapsd));
160 IWL_DEBUG_POWER(mvm, "QNDP TID = %d\n", cmd->qndp_tid);
161 IWL_DEBUG_POWER(mvm, "ACs flags = 0x%x\n", cmd->uapsd_ac_flags);
162 IWL_DEBUG_POWER(mvm, "Max SP = %d\n", cmd->uapsd_max_sp);
163 }
164 }
165
iwl_mvm_power_configure_uapsd(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_mac_power_cmd * cmd)166 static void iwl_mvm_power_configure_uapsd(struct iwl_mvm *mvm,
167 struct ieee80211_vif *vif,
168 struct iwl_mac_power_cmd *cmd)
169 {
170 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
171 enum ieee80211_ac_numbers ac;
172 bool tid_found = false;
173
174 for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_BK; ac++) {
175 if (!mvmvif->queue_params[ac].uapsd)
176 continue;
177
178 if (mvm->cur_ucode != IWL_UCODE_WOWLAN)
179 cmd->flags |=
180 cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
181
182 cmd->uapsd_ac_flags |= BIT(ac);
183
184 /* QNDP TID - the highest TID with no admission control */
185 if (!tid_found && !mvmvif->queue_params[ac].acm) {
186 tid_found = true;
187 switch (ac) {
188 case IEEE80211_AC_VO:
189 cmd->qndp_tid = 6;
190 break;
191 case IEEE80211_AC_VI:
192 cmd->qndp_tid = 5;
193 break;
194 case IEEE80211_AC_BE:
195 cmd->qndp_tid = 0;
196 break;
197 case IEEE80211_AC_BK:
198 cmd->qndp_tid = 1;
199 break;
200 }
201 }
202 }
203
204 if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) {
205 #ifdef CONFIG_IWLWIFI_DEBUGFS
206 /* set advanced pm flag with no uapsd ACs to enable ps-poll */
207 if (mvmvif->dbgfs_pm.use_ps_poll)
208 cmd->flags |=
209 cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
210 #endif
211 return;
212 }
213
214 cmd->flags |= cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK);
215
216 if (cmd->uapsd_ac_flags == (BIT(IEEE80211_AC_VO) |
217 BIT(IEEE80211_AC_VI) |
218 BIT(IEEE80211_AC_BE) |
219 BIT(IEEE80211_AC_BK))) {
220 cmd->flags |= cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
221 cmd->snooze_interval = cpu_to_le16(IWL_MVM_PS_SNOOZE_INTERVAL);
222 cmd->snooze_window = (mvm->cur_ucode == IWL_UCODE_WOWLAN) ?
223 cpu_to_le16(IWL_MVM_WOWLAN_PS_SNOOZE_WINDOW) :
224 cpu_to_le16(IWL_MVM_PS_SNOOZE_WINDOW);
225 }
226
227 cmd->uapsd_max_sp = IWL_UAPSD_MAX_SP;
228
229 if (mvm->cur_ucode == IWL_UCODE_WOWLAN || cmd->flags &
230 cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
231 cmd->rx_data_timeout_uapsd =
232 cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
233 cmd->tx_data_timeout_uapsd =
234 cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
235 } else {
236 cmd->rx_data_timeout_uapsd =
237 cpu_to_le32(IWL_MVM_UAPSD_RX_DATA_TIMEOUT);
238 cmd->tx_data_timeout_uapsd =
239 cpu_to_le32(IWL_MVM_UAPSD_TX_DATA_TIMEOUT);
240 }
241
242 if (cmd->flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
243 cmd->heavy_tx_thld_packets =
244 IWL_MVM_PS_SNOOZE_HEAVY_TX_THLD_PACKETS;
245 cmd->heavy_rx_thld_packets =
246 IWL_MVM_PS_SNOOZE_HEAVY_RX_THLD_PACKETS;
247 } else {
248 cmd->heavy_tx_thld_packets =
249 IWL_MVM_PS_HEAVY_TX_THLD_PACKETS;
250 cmd->heavy_rx_thld_packets =
251 IWL_MVM_PS_HEAVY_RX_THLD_PACKETS;
252 }
253 cmd->heavy_tx_thld_percentage =
254 IWL_MVM_PS_HEAVY_TX_THLD_PERCENT;
255 cmd->heavy_rx_thld_percentage =
256 IWL_MVM_PS_HEAVY_RX_THLD_PERCENT;
257 }
258
iwl_mvm_power_allow_uapsd(struct iwl_mvm * mvm,struct ieee80211_vif * vif)259 static bool iwl_mvm_power_allow_uapsd(struct iwl_mvm *mvm,
260 struct ieee80211_vif *vif)
261 {
262 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
263
264 if (!memcmp(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid,
265 ETH_ALEN))
266 return false;
267
268 if (vif->p2p &&
269 !(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PS_UAPSD))
270 return false;
271 /*
272 * Avoid using uAPSD if P2P client is associated to GO that uses
273 * opportunistic power save. This is due to current FW limitation.
274 */
275 if (vif->p2p &&
276 (vif->bss_conf.p2p_noa_attr.oppps_ctwindow &
277 IEEE80211_P2P_OPPPS_ENABLE_BIT))
278 return false;
279
280 /*
281 * Avoid using uAPSD if client is in DCM -
282 * low latency issue in Miracast
283 */
284 if (iwl_mvm_phy_ctx_count(mvm) >= 2)
285 return false;
286
287 return true;
288 }
289
iwl_mvm_power_get_skip_over_dtim(int dtimper,int bi)290 static int iwl_mvm_power_get_skip_over_dtim(int dtimper, int bi)
291 {
292 int numerator;
293 int dtim_interval = dtimper * bi;
294
295 if (WARN_ON(!dtim_interval))
296 return 0;
297
298 if (dtimper == 1) {
299 if (bi > 100)
300 numerator = 408;
301 else
302 numerator = 510;
303 } else if (dtimper < 10) {
304 numerator = 612;
305 } else {
306 return 0;
307 }
308 return max(1, (numerator / dtim_interval));
309 }
310
iwl_mvm_power_is_radar(struct ieee80211_vif * vif)311 static bool iwl_mvm_power_is_radar(struct ieee80211_vif *vif)
312 {
313 struct ieee80211_chanctx_conf *chanctx_conf;
314 struct ieee80211_channel *chan;
315 bool radar_detect = false;
316
317 rcu_read_lock();
318 chanctx_conf = rcu_dereference(vif->chanctx_conf);
319 WARN_ON(!chanctx_conf);
320 if (chanctx_conf) {
321 chan = chanctx_conf->def.chan;
322 radar_detect = chan->flags & IEEE80211_CHAN_RADAR;
323 }
324 rcu_read_unlock();
325
326 return radar_detect;
327 }
328
iwl_mvm_power_build_cmd(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_mac_power_cmd * cmd)329 static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm,
330 struct ieee80211_vif *vif,
331 struct iwl_mac_power_cmd *cmd)
332 {
333 int dtimper, bi;
334 int keep_alive;
335 bool radar_detect = false;
336 struct iwl_mvm_vif *mvmvif __maybe_unused =
337 iwl_mvm_vif_from_mac80211(vif);
338
339 cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
340 mvmvif->color));
341 dtimper = vif->bss_conf.dtim_period;
342 bi = vif->bss_conf.beacon_int;
343
344 /*
345 * Regardless of power management state the driver must set
346 * keep alive period. FW will use it for sending keep alive NDPs
347 * immediately after association. Check that keep alive period
348 * is at least 3 * DTIM
349 */
350 keep_alive = DIV_ROUND_UP(ieee80211_tu_to_usec(3 * dtimper * bi),
351 USEC_PER_SEC);
352 keep_alive = max(keep_alive, POWER_KEEP_ALIVE_PERIOD_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)
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
iwl_mvm_power_send_cmd(struct iwl_mvm * mvm,struct ieee80211_vif * vif)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
iwl_mvm_power_update_device(struct iwl_mvm * mvm)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
iwl_mvm_power_vif_assoc(struct iwl_mvm * mvm,struct ieee80211_vif * vif)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 eth_zero_addr(mvmvif->uapsd_misbehaving_bssid);
496 }
497
iwl_mvm_power_uapsd_misbehav_ap_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)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
iwl_mvm_power_uapsd_misbehaving_ap_notif(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb,struct iwl_device_cmd * cmd)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
iwl_mvm_power_disable_pm_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)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
iwl_mvm_power_ps_disabled_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)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
iwl_mvm_power_get_vifs_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)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
iwl_mvm_power_set_pm(struct iwl_mvm * mvm,struct iwl_power_vifs * vifs)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 /* don't allow PM if any TDLS stations exist */
643 if (iwl_mvm_tdls_sta_count(mvm, NULL))
644 return;
645
646 /* enable PM on bss if bss stand alone */
647 if (vifs->bss_active && !vifs->p2p_active && !vifs->ap_active) {
648 bss_mvmvif->pm_enabled = true;
649 return;
650 }
651
652 /* enable PM on p2p if p2p stand alone */
653 if (vifs->p2p_active && !vifs->bss_active && !vifs->ap_active) {
654 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM)
655 p2p_mvmvif->pm_enabled = true;
656 return;
657 }
658
659 if (vifs->bss_active && vifs->p2p_active)
660 client_same_channel = (bss_mvmvif->phy_ctxt->id ==
661 p2p_mvmvif->phy_ctxt->id);
662 if (vifs->bss_active && vifs->ap_active)
663 ap_same_channel = (bss_mvmvif->phy_ctxt->id ==
664 ap_mvmvif->phy_ctxt->id);
665
666 /* clients are not stand alone: enable PM if DCM */
667 if (!(client_same_channel || ap_same_channel) &&
668 (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_DCM)) {
669 if (vifs->bss_active)
670 bss_mvmvif->pm_enabled = true;
671 if (vifs->p2p_active &&
672 (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM))
673 p2p_mvmvif->pm_enabled = true;
674 return;
675 }
676
677 /*
678 * There is only one channel in the system and there are only
679 * bss and p2p clients that share it
680 */
681 if (client_same_channel && !vifs->ap_active &&
682 (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_SCM)) {
683 /* share same channel*/
684 bss_mvmvif->pm_enabled = true;
685 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM)
686 p2p_mvmvif->pm_enabled = true;
687 }
688 }
689
690 #ifdef CONFIG_IWLWIFI_DEBUGFS
iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm * mvm,struct ieee80211_vif * vif,char * buf,int bufsz)691 int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm,
692 struct ieee80211_vif *vif, char *buf,
693 int bufsz)
694 {
695 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
696 struct iwl_mac_power_cmd cmd = {};
697 int pos = 0;
698
699 mutex_lock(&mvm->mutex);
700 memcpy(&cmd, &mvmvif->mac_pwr_cmd, sizeof(cmd));
701 mutex_unlock(&mvm->mutex);
702
703 pos += scnprintf(buf+pos, bufsz-pos, "power_scheme = %d\n",
704 iwlmvm_mod_params.power_scheme);
705 pos += scnprintf(buf+pos, bufsz-pos, "flags = 0x%x\n",
706 le16_to_cpu(cmd.flags));
707 pos += scnprintf(buf+pos, bufsz-pos, "keep_alive = %d\n",
708 le16_to_cpu(cmd.keep_alive_seconds));
709
710 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK)))
711 return pos;
712
713 pos += scnprintf(buf+pos, bufsz-pos, "skip_over_dtim = %d\n",
714 (cmd.flags &
715 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK)) ? 1 : 0);
716 pos += scnprintf(buf+pos, bufsz-pos, "skip_dtim_periods = %d\n",
717 cmd.skip_dtim_periods);
718 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) {
719 pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout = %d\n",
720 le32_to_cpu(cmd.rx_data_timeout));
721 pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout = %d\n",
722 le32_to_cpu(cmd.tx_data_timeout));
723 }
724 if (cmd.flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
725 pos += scnprintf(buf+pos, bufsz-pos,
726 "lprx_rssi_threshold = %d\n",
727 cmd.lprx_rssi_threshold);
728
729 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)))
730 return pos;
731
732 pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout_uapsd = %d\n",
733 le32_to_cpu(cmd.rx_data_timeout_uapsd));
734 pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout_uapsd = %d\n",
735 le32_to_cpu(cmd.tx_data_timeout_uapsd));
736 pos += scnprintf(buf+pos, bufsz-pos, "qndp_tid = %d\n", cmd.qndp_tid);
737 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_ac_flags = 0x%x\n",
738 cmd.uapsd_ac_flags);
739 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_max_sp = %d\n",
740 cmd.uapsd_max_sp);
741 pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_packets = %d\n",
742 cmd.heavy_tx_thld_packets);
743 pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_packets = %d\n",
744 cmd.heavy_rx_thld_packets);
745 pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_percentage = %d\n",
746 cmd.heavy_tx_thld_percentage);
747 pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_percentage = %d\n",
748 cmd.heavy_rx_thld_percentage);
749 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_misbehaving_enable = %d\n",
750 (cmd.flags &
751 cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK)) ?
752 1 : 0);
753
754 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)))
755 return pos;
756
757 pos += scnprintf(buf+pos, bufsz-pos, "snooze_interval = %d\n",
758 cmd.snooze_interval);
759 pos += scnprintf(buf+pos, bufsz-pos, "snooze_window = %d\n",
760 cmd.snooze_window);
761
762 return pos;
763 }
764
765 void
iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif * vif,struct iwl_beacon_filter_cmd * cmd)766 iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
767 struct iwl_beacon_filter_cmd *cmd)
768 {
769 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
770 struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
771
772 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ENERGY_DELTA)
773 cmd->bf_energy_delta = cpu_to_le32(dbgfs_bf->bf_energy_delta);
774 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA)
775 cmd->bf_roaming_energy_delta =
776 cpu_to_le32(dbgfs_bf->bf_roaming_energy_delta);
777 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_STATE)
778 cmd->bf_roaming_state = cpu_to_le32(dbgfs_bf->bf_roaming_state);
779 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_THRESHOLD)
780 cmd->bf_temp_threshold =
781 cpu_to_le32(dbgfs_bf->bf_temp_threshold);
782 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_FAST_FILTER)
783 cmd->bf_temp_fast_filter =
784 cpu_to_le32(dbgfs_bf->bf_temp_fast_filter);
785 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_SLOW_FILTER)
786 cmd->bf_temp_slow_filter =
787 cpu_to_le32(dbgfs_bf->bf_temp_slow_filter);
788 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_DEBUG_FLAG)
789 cmd->bf_debug_flag = cpu_to_le32(dbgfs_bf->bf_debug_flag);
790 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ESCAPE_TIMER)
791 cmd->bf_escape_timer = cpu_to_le32(dbgfs_bf->bf_escape_timer);
792 if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ESCAPE_TIMER)
793 cmd->ba_escape_timer = cpu_to_le32(dbgfs_bf->ba_escape_timer);
794 if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT)
795 cmd->ba_enable_beacon_abort =
796 cpu_to_le32(dbgfs_bf->ba_enable_beacon_abort);
797 }
798 #endif
799
_iwl_mvm_enable_beacon_filter(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_beacon_filter_cmd * cmd,u32 cmd_flags,bool d0i3)800 static int _iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
801 struct ieee80211_vif *vif,
802 struct iwl_beacon_filter_cmd *cmd,
803 u32 cmd_flags,
804 bool d0i3)
805 {
806 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
807 int ret;
808
809 if (mvmvif != mvm->bf_allowed_vif || !vif->bss_conf.dtim_period ||
810 vif->type != NL80211_IFTYPE_STATION || vif->p2p)
811 return 0;
812
813 iwl_mvm_beacon_filter_set_cqm_params(mvm, vif, cmd);
814 if (!d0i3)
815 iwl_mvm_beacon_filter_debugfs_parameters(vif, cmd);
816 ret = iwl_mvm_beacon_filter_send_cmd(mvm, cmd, cmd_flags);
817
818 /* don't change bf_enabled in case of temporary d0i3 configuration */
819 if (!ret && !d0i3)
820 mvmvif->bf_data.bf_enabled = true;
821
822 return ret;
823 }
824
iwl_mvm_enable_beacon_filter(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u32 flags)825 int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
826 struct ieee80211_vif *vif,
827 u32 flags)
828 {
829 struct iwl_beacon_filter_cmd cmd = {
830 IWL_BF_CMD_CONFIG_DEFAULTS,
831 .bf_enable_beacon_filter = cpu_to_le32(1),
832 };
833
834 return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, flags, false);
835 }
836
iwl_mvm_update_beacon_abort(struct iwl_mvm * mvm,struct ieee80211_vif * vif,bool enable)837 static int iwl_mvm_update_beacon_abort(struct iwl_mvm *mvm,
838 struct ieee80211_vif *vif,
839 bool enable)
840 {
841 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
842 struct iwl_beacon_filter_cmd cmd = {
843 IWL_BF_CMD_CONFIG_DEFAULTS,
844 .bf_enable_beacon_filter = cpu_to_le32(1),
845 };
846
847 if (!mvmvif->bf_data.bf_enabled)
848 return 0;
849
850 if (mvm->cur_ucode == IWL_UCODE_WOWLAN)
851 cmd.ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER_D3);
852
853 mvmvif->bf_data.ba_enabled = enable;
854 return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, 0, false);
855 }
856
iwl_mvm_disable_beacon_filter(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u32 flags)857 int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
858 struct ieee80211_vif *vif,
859 u32 flags)
860 {
861 struct iwl_beacon_filter_cmd cmd = {};
862 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
863 int ret;
864
865 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
866 return 0;
867
868 ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd, flags);
869
870 if (!ret)
871 mvmvif->bf_data.bf_enabled = false;
872
873 return ret;
874 }
875
iwl_mvm_power_set_ps(struct iwl_mvm * mvm)876 static int iwl_mvm_power_set_ps(struct iwl_mvm *mvm)
877 {
878 bool disable_ps;
879 int ret;
880
881 /* disable PS if CAM */
882 disable_ps = (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM);
883 /* ...or if any of the vifs require PS to be off */
884 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
885 IEEE80211_IFACE_ITER_NORMAL,
886 iwl_mvm_power_ps_disabled_iterator,
887 &disable_ps);
888
889 /* update device power state if it has changed */
890 if (mvm->ps_disabled != disable_ps) {
891 bool old_ps_disabled = mvm->ps_disabled;
892
893 mvm->ps_disabled = disable_ps;
894 ret = iwl_mvm_power_update_device(mvm);
895 if (ret) {
896 mvm->ps_disabled = old_ps_disabled;
897 return ret;
898 }
899 }
900
901 return 0;
902 }
903
iwl_mvm_power_set_ba(struct iwl_mvm * mvm,struct iwl_power_vifs * vifs)904 static int iwl_mvm_power_set_ba(struct iwl_mvm *mvm,
905 struct iwl_power_vifs *vifs)
906 {
907 struct iwl_mvm_vif *mvmvif;
908 bool ba_enable;
909
910 if (!vifs->bf_vif)
911 return 0;
912
913 mvmvif = iwl_mvm_vif_from_mac80211(vifs->bf_vif);
914
915 ba_enable = !(!mvmvif->pm_enabled || mvm->ps_disabled ||
916 !vifs->bf_vif->bss_conf.ps ||
917 iwl_mvm_vif_low_latency(mvmvif));
918
919 return iwl_mvm_update_beacon_abort(mvm, vifs->bf_vif, ba_enable);
920 }
921
iwl_mvm_power_update_ps(struct iwl_mvm * mvm)922 int iwl_mvm_power_update_ps(struct iwl_mvm *mvm)
923 {
924 struct iwl_power_vifs vifs = {
925 .mvm = mvm,
926 };
927 int ret;
928
929 lockdep_assert_held(&mvm->mutex);
930
931 /* get vifs info */
932 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
933 IEEE80211_IFACE_ITER_NORMAL,
934 iwl_mvm_power_get_vifs_iterator, &vifs);
935
936 ret = iwl_mvm_power_set_ps(mvm);
937 if (ret)
938 return ret;
939
940 return iwl_mvm_power_set_ba(mvm, &vifs);
941 }
942
iwl_mvm_power_update_mac(struct iwl_mvm * mvm)943 int iwl_mvm_power_update_mac(struct iwl_mvm *mvm)
944 {
945 struct iwl_power_vifs vifs = {
946 .mvm = mvm,
947 };
948 int ret;
949
950 lockdep_assert_held(&mvm->mutex);
951
952 /* get vifs info */
953 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
954 IEEE80211_IFACE_ITER_NORMAL,
955 iwl_mvm_power_get_vifs_iterator, &vifs);
956
957 iwl_mvm_power_set_pm(mvm, &vifs);
958
959 ret = iwl_mvm_power_set_ps(mvm);
960 if (ret)
961 return ret;
962
963 if (vifs.bss_vif) {
964 ret = iwl_mvm_power_send_cmd(mvm, vifs.bss_vif);
965 if (ret)
966 return ret;
967 }
968
969 if (vifs.p2p_vif) {
970 ret = iwl_mvm_power_send_cmd(mvm, vifs.p2p_vif);
971 if (ret)
972 return ret;
973 }
974
975 return iwl_mvm_power_set_ba(mvm, &vifs);
976 }
977
iwl_mvm_update_d0i3_power_mode(struct iwl_mvm * mvm,struct ieee80211_vif * vif,bool enable,u32 flags)978 int iwl_mvm_update_d0i3_power_mode(struct iwl_mvm *mvm,
979 struct ieee80211_vif *vif,
980 bool enable, u32 flags)
981 {
982 int ret;
983 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
984 struct iwl_mac_power_cmd cmd = {};
985
986 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
987 return 0;
988
989 if (!vif->bss_conf.assoc)
990 return 0;
991
992 iwl_mvm_power_build_cmd(mvm, vif, &cmd);
993 if (enable) {
994 /* configure skip over dtim up to 306TU - 314 msec */
995 int dtimper = vif->bss_conf.dtim_period ?: 1;
996 int dtimper_tu = dtimper * vif->bss_conf.beacon_int;
997 bool radar_detect = iwl_mvm_power_is_radar(vif);
998
999 if (WARN_ON(!dtimper_tu))
1000 return 0;
1001
1002 /* Check skip over DTIM conditions */
1003 /* TODO: check that multicast wake lock is off */
1004 if (!radar_detect && (dtimper < 10)) {
1005 cmd.skip_dtim_periods = 306 / dtimper_tu;
1006 if (cmd.skip_dtim_periods)
1007 cmd.flags |= cpu_to_le16(
1008 POWER_FLAGS_SKIP_OVER_DTIM_MSK);
1009 }
1010 }
1011 iwl_mvm_power_log(mvm, &cmd);
1012 #ifdef CONFIG_IWLWIFI_DEBUGFS
1013 memcpy(&mvmvif->mac_pwr_cmd, &cmd, sizeof(cmd));
1014 #endif
1015 ret = iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, flags,
1016 sizeof(cmd), &cmd);
1017 if (ret)
1018 return ret;
1019
1020 /* configure beacon filtering */
1021 if (mvmvif != mvm->bf_allowed_vif)
1022 return 0;
1023
1024 if (enable) {
1025 struct iwl_beacon_filter_cmd cmd_bf = {
1026 IWL_BF_CMD_CONFIG_D0I3,
1027 .bf_enable_beacon_filter = cpu_to_le32(1),
1028 };
1029 ret = _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd_bf,
1030 flags, true);
1031 } else {
1032 if (mvmvif->bf_data.bf_enabled)
1033 ret = iwl_mvm_enable_beacon_filter(mvm, vif, flags);
1034 else
1035 ret = iwl_mvm_disable_beacon_filter(mvm, vif, flags);
1036 }
1037
1038 return ret;
1039 }
1040