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1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2/*
3 * Copyright (C) 2012-2014, 2018-2019, 2021 Intel Corporation
4 * Copyright (C) 2013-2014 Intel Mobile Communications GmbH
5 * Copyright (C) 2015-2017 Intel Deutschland GmbH
6 */
7#include <linux/kernel.h>
8#include <linux/module.h>
9#include <linux/slab.h>
10#include <linux/etherdevice.h>
11
12#include <net/mac80211.h>
13
14#include "iwl-debug.h"
15#include "mvm.h"
16#include "iwl-modparams.h"
17#include "fw/api/power.h"
18
19#define POWER_KEEP_ALIVE_PERIOD_SEC 25
20
21static
22int iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm *mvm,
23 struct iwl_beacon_filter_cmd *cmd,
24 u32 flags)
25{
26 u16 len;
27
28 IWL_DEBUG_POWER(mvm, "ba_enable_beacon_abort is: %d\n",
29 le32_to_cpu(cmd->ba_enable_beacon_abort));
30 IWL_DEBUG_POWER(mvm, "ba_escape_timer is: %d\n",
31 le32_to_cpu(cmd->ba_escape_timer));
32 IWL_DEBUG_POWER(mvm, "bf_debug_flag is: %d\n",
33 le32_to_cpu(cmd->bf_debug_flag));
34 IWL_DEBUG_POWER(mvm, "bf_enable_beacon_filter is: %d\n",
35 le32_to_cpu(cmd->bf_enable_beacon_filter));
36 IWL_DEBUG_POWER(mvm, "bf_energy_delta is: %d\n",
37 le32_to_cpu(cmd->bf_energy_delta));
38 IWL_DEBUG_POWER(mvm, "bf_escape_timer is: %d\n",
39 le32_to_cpu(cmd->bf_escape_timer));
40 IWL_DEBUG_POWER(mvm, "bf_roaming_energy_delta is: %d\n",
41 le32_to_cpu(cmd->bf_roaming_energy_delta));
42 IWL_DEBUG_POWER(mvm, "bf_roaming_state is: %d\n",
43 le32_to_cpu(cmd->bf_roaming_state));
44 IWL_DEBUG_POWER(mvm, "bf_temp_threshold is: %d\n",
45 le32_to_cpu(cmd->bf_temp_threshold));
46 IWL_DEBUG_POWER(mvm, "bf_temp_fast_filter is: %d\n",
47 le32_to_cpu(cmd->bf_temp_fast_filter));
48 IWL_DEBUG_POWER(mvm, "bf_temp_slow_filter is: %d\n",
49 le32_to_cpu(cmd->bf_temp_slow_filter));
50 IWL_DEBUG_POWER(mvm, "bf_threshold_absolute_low is: %d, %d\n",
51 le32_to_cpu(cmd->bf_threshold_absolute_low[0]),
52 le32_to_cpu(cmd->bf_threshold_absolute_low[1]));
53
54 IWL_DEBUG_POWER(mvm, "bf_threshold_absolute_high is: %d, %d\n",
55 le32_to_cpu(cmd->bf_threshold_absolute_high[0]),
56 le32_to_cpu(cmd->bf_threshold_absolute_high[1]));
57
58 if (fw_has_api(&mvm->fw->ucode_capa,
59 IWL_UCODE_TLV_API_BEACON_FILTER_V4))
60 len = sizeof(struct iwl_beacon_filter_cmd);
61 else
62 len = offsetof(struct iwl_beacon_filter_cmd,
63 bf_threshold_absolute_low);
64
65 return iwl_mvm_send_cmd_pdu(mvm, REPLY_BEACON_FILTERING_CMD, flags,
66 len, cmd);
67}
68
69static
70void iwl_mvm_beacon_filter_set_cqm_params(struct iwl_mvm *mvm,
71 struct ieee80211_vif *vif,
72 struct iwl_beacon_filter_cmd *cmd)
73{
74 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
75
76 if (vif->bss_conf.cqm_rssi_thold) {
77 cmd->bf_energy_delta =
78 cpu_to_le32(vif->bss_conf.cqm_rssi_hyst);
79 /* fw uses an absolute value for this */
80 cmd->bf_roaming_state =
81 cpu_to_le32(-vif->bss_conf.cqm_rssi_thold);
82 }
83 cmd->ba_enable_beacon_abort = cpu_to_le32(mvmvif->bf_data.ba_enabled);
84}
85
86static void iwl_mvm_power_log(struct iwl_mvm *mvm,
87 struct iwl_mac_power_cmd *cmd)
88{
89 IWL_DEBUG_POWER(mvm,
90 "Sending power table command on mac id 0x%X for power level %d, flags = 0x%X\n",
91 cmd->id_and_color, iwlmvm_mod_params.power_scheme,
92 le16_to_cpu(cmd->flags));
93 IWL_DEBUG_POWER(mvm, "Keep alive = %u sec\n",
94 le16_to_cpu(cmd->keep_alive_seconds));
95
96 if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK))) {
97 IWL_DEBUG_POWER(mvm, "Disable power management\n");
98 return;
99 }
100
101 IWL_DEBUG_POWER(mvm, "Rx timeout = %u usec\n",
102 le32_to_cpu(cmd->rx_data_timeout));
103 IWL_DEBUG_POWER(mvm, "Tx timeout = %u usec\n",
104 le32_to_cpu(cmd->tx_data_timeout));
105 if (cmd->flags & cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK))
106 IWL_DEBUG_POWER(mvm, "DTIM periods to skip = %u\n",
107 cmd->skip_dtim_periods);
108 if (cmd->flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
109 IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n",
110 cmd->lprx_rssi_threshold);
111 if (cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)) {
112 IWL_DEBUG_POWER(mvm, "uAPSD enabled\n");
113 IWL_DEBUG_POWER(mvm, "Rx timeout (uAPSD) = %u usec\n",
114 le32_to_cpu(cmd->rx_data_timeout_uapsd));
115 IWL_DEBUG_POWER(mvm, "Tx timeout (uAPSD) = %u usec\n",
116 le32_to_cpu(cmd->tx_data_timeout_uapsd));
117 IWL_DEBUG_POWER(mvm, "QNDP TID = %d\n", cmd->qndp_tid);
118 IWL_DEBUG_POWER(mvm, "ACs flags = 0x%x\n", cmd->uapsd_ac_flags);
119 IWL_DEBUG_POWER(mvm, "Max SP = %d\n", cmd->uapsd_max_sp);
120 }
121}
122
123static void iwl_mvm_power_configure_uapsd(struct iwl_mvm *mvm,
124 struct ieee80211_vif *vif,
125 struct iwl_mac_power_cmd *cmd)
126{
127 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
128 enum ieee80211_ac_numbers ac;
129 bool tid_found = false;
130
131 if (test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status) ||
132 cmd->flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
133 cmd->rx_data_timeout_uapsd =
134 cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
135 cmd->tx_data_timeout_uapsd =
136 cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
137 } else {
138 cmd->rx_data_timeout_uapsd =
139 cpu_to_le32(IWL_MVM_UAPSD_RX_DATA_TIMEOUT);
140 cmd->tx_data_timeout_uapsd =
141 cpu_to_le32(IWL_MVM_UAPSD_TX_DATA_TIMEOUT);
142 }
143
144#ifdef CONFIG_IWLWIFI_DEBUGFS
145 /* set advanced pm flag with no uapsd ACs to enable ps-poll */
146 if (mvmvif->dbgfs_pm.use_ps_poll) {
147 cmd->flags |= cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
148 return;
149 }
150#endif
151
152 for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_BK; ac++) {
153 if (!mvmvif->queue_params[ac].uapsd)
154 continue;
155
156 if (!test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))
157 cmd->flags |=
158 cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
159
160 cmd->uapsd_ac_flags |= BIT(ac);
161
162 /* QNDP TID - the highest TID with no admission control */
163 if (!tid_found && !mvmvif->queue_params[ac].acm) {
164 tid_found = true;
165 switch (ac) {
166 case IEEE80211_AC_VO:
167 cmd->qndp_tid = 6;
168 break;
169 case IEEE80211_AC_VI:
170 cmd->qndp_tid = 5;
171 break;
172 case IEEE80211_AC_BE:
173 cmd->qndp_tid = 0;
174 break;
175 case IEEE80211_AC_BK:
176 cmd->qndp_tid = 1;
177 break;
178 }
179 }
180 }
181
182 cmd->flags |= cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK);
183
184 if (cmd->uapsd_ac_flags == (BIT(IEEE80211_AC_VO) |
185 BIT(IEEE80211_AC_VI) |
186 BIT(IEEE80211_AC_BE) |
187 BIT(IEEE80211_AC_BK))) {
188 cmd->flags |= cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
189 cmd->snooze_interval = cpu_to_le16(IWL_MVM_PS_SNOOZE_INTERVAL);
190 cmd->snooze_window =
191 test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status) ?
192 cpu_to_le16(IWL_MVM_WOWLAN_PS_SNOOZE_WINDOW) :
193 cpu_to_le16(IWL_MVM_PS_SNOOZE_WINDOW);
194 }
195
196 cmd->uapsd_max_sp = mvm->hw->uapsd_max_sp_len;
197
198 if (cmd->flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
199 cmd->heavy_tx_thld_packets =
200 IWL_MVM_PS_SNOOZE_HEAVY_TX_THLD_PACKETS;
201 cmd->heavy_rx_thld_packets =
202 IWL_MVM_PS_SNOOZE_HEAVY_RX_THLD_PACKETS;
203 } else {
204 cmd->heavy_tx_thld_packets =
205 IWL_MVM_PS_HEAVY_TX_THLD_PACKETS;
206 cmd->heavy_rx_thld_packets =
207 IWL_MVM_PS_HEAVY_RX_THLD_PACKETS;
208 }
209 cmd->heavy_tx_thld_percentage =
210 IWL_MVM_PS_HEAVY_TX_THLD_PERCENT;
211 cmd->heavy_rx_thld_percentage =
212 IWL_MVM_PS_HEAVY_RX_THLD_PERCENT;
213}
214
215static void iwl_mvm_p2p_standalone_iterator(void *_data, u8 *mac,
216 struct ieee80211_vif *vif)
217{
218 bool *is_p2p_standalone = _data;
219
220 switch (ieee80211_vif_type_p2p(vif)) {
221 case NL80211_IFTYPE_P2P_GO:
222 case NL80211_IFTYPE_AP:
223 *is_p2p_standalone = false;
224 break;
225 case NL80211_IFTYPE_STATION:
226 if (vif->cfg.assoc)
227 *is_p2p_standalone = false;
228 break;
229
230 default:
231 break;
232 }
233}
234
235static bool iwl_mvm_power_allow_uapsd(struct iwl_mvm *mvm,
236 struct ieee80211_vif *vif)
237{
238 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
239
240 if (!memcmp(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid,
241 ETH_ALEN))
242 return false;
243
244 /*
245 * Avoid using uAPSD if P2P client is associated to GO that uses
246 * opportunistic power save. This is due to current FW limitation.
247 */
248 if (vif->p2p &&
249 (vif->bss_conf.p2p_noa_attr.oppps_ctwindow &
250 IEEE80211_P2P_OPPPS_ENABLE_BIT))
251 return false;
252
253 /*
254 * Avoid using uAPSD if client is in DCM -
255 * low latency issue in Miracast
256 */
257 if (iwl_mvm_phy_ctx_count(mvm) >= 2)
258 return false;
259
260 if (vif->p2p) {
261 /* Allow U-APSD only if p2p is stand alone */
262 bool is_p2p_standalone = true;
263
264 if (!iwl_mvm_is_p2p_scm_uapsd_supported(mvm))
265 return false;
266
267 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
268 IEEE80211_IFACE_ITER_NORMAL,
269 iwl_mvm_p2p_standalone_iterator,
270 &is_p2p_standalone);
271
272 if (!is_p2p_standalone)
273 return false;
274 }
275
276 return true;
277}
278
279static bool iwl_mvm_power_is_radar(struct ieee80211_vif *vif)
280{
281 struct ieee80211_chanctx_conf *chanctx_conf;
282 struct ieee80211_channel *chan;
283 bool radar_detect = false;
284
285 rcu_read_lock();
286 chanctx_conf = rcu_dereference(vif->bss_conf.chanctx_conf);
287 WARN_ON(!chanctx_conf);
288 if (chanctx_conf) {
289 chan = chanctx_conf->def.chan;
290 radar_detect = chan->flags & IEEE80211_CHAN_RADAR;
291 }
292 rcu_read_unlock();
293
294 return radar_detect;
295}
296
297static void iwl_mvm_power_config_skip_dtim(struct iwl_mvm *mvm,
298 struct ieee80211_vif *vif,
299 struct iwl_mac_power_cmd *cmd)
300{
301 int dtimper = vif->bss_conf.dtim_period ?: 1;
302 int skip;
303
304 /* disable, in case we're supposed to override */
305 cmd->skip_dtim_periods = 0;
306 cmd->flags &= ~cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
307
308 if (iwl_mvm_power_is_radar(vif))
309 return;
310
311 if (dtimper >= 10)
312 return;
313
314 if (!test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status)) {
315 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_LP)
316 return;
317 skip = 2;
318 } else {
319 int dtimper_tu = dtimper * vif->bss_conf.beacon_int;
320
321 if (WARN_ON(!dtimper_tu))
322 return;
323 /* configure skip over dtim up to 306TU - 314 msec */
324 skip = max_t(u8, 1, 306 / dtimper_tu);
325 }
326
327 /* the firmware really expects "look at every X DTIMs", so add 1 */
328 cmd->skip_dtim_periods = 1 + skip;
329 cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
330}
331
332static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm,
333 struct ieee80211_vif *vif,
334 struct iwl_mac_power_cmd *cmd)
335{
336 int dtimper, bi;
337 int keep_alive;
338 struct iwl_mvm_vif *mvmvif __maybe_unused =
339 iwl_mvm_vif_from_mac80211(vif);
340
341 cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
342 mvmvif->color));
343 dtimper = vif->bss_conf.dtim_period;
344 bi = vif->bss_conf.beacon_int;
345
346 /*
347 * Regardless of power management state the driver must set
348 * keep alive period. FW will use it for sending keep alive NDPs
349 * immediately after association. Check that keep alive period
350 * is at least 3 * DTIM
351 */
352 keep_alive = DIV_ROUND_UP(ieee80211_tu_to_usec(3 * dtimper * bi),
353 USEC_PER_SEC);
354 keep_alive = max(keep_alive, POWER_KEEP_ALIVE_PERIOD_SEC);
355 cmd->keep_alive_seconds = cpu_to_le16(keep_alive);
356
357 if (mvm->ps_disabled)
358 return;
359
360 cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
361
362 if (!vif->cfg.ps || !mvmvif->pm_enabled)
363 return;
364
365 if (iwl_mvm_vif_low_latency(mvmvif) && vif->p2p &&
366 (!fw_has_capa(&mvm->fw->ucode_capa,
367 IWL_UCODE_TLV_CAPA_SHORT_PM_TIMEOUTS) ||
368 !IWL_MVM_P2P_LOWLATENCY_PS_ENABLE))
369 return;
370
371 cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK);
372
373 if (vif->bss_conf.beacon_rate &&
374 (vif->bss_conf.beacon_rate->bitrate == 10 ||
375 vif->bss_conf.beacon_rate->bitrate == 60)) {
376 cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
377 cmd->lprx_rssi_threshold = POWER_LPRX_RSSI_THRESHOLD;
378 }
379
380 iwl_mvm_power_config_skip_dtim(mvm, vif, cmd);
381
382 if (test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status)) {
383 cmd->rx_data_timeout =
384 cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
385 cmd->tx_data_timeout =
386 cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
387 } else if (iwl_mvm_vif_low_latency(mvmvif) && vif->p2p &&
388 fw_has_capa(&mvm->fw->ucode_capa,
389 IWL_UCODE_TLV_CAPA_SHORT_PM_TIMEOUTS)) {
390 cmd->tx_data_timeout =
391 cpu_to_le32(IWL_MVM_SHORT_PS_TX_DATA_TIMEOUT);
392 cmd->rx_data_timeout =
393 cpu_to_le32(IWL_MVM_SHORT_PS_RX_DATA_TIMEOUT);
394 } else {
395 cmd->rx_data_timeout =
396 cpu_to_le32(IWL_MVM_DEFAULT_PS_RX_DATA_TIMEOUT);
397 cmd->tx_data_timeout =
398 cpu_to_le32(IWL_MVM_DEFAULT_PS_TX_DATA_TIMEOUT);
399 }
400
401 if (iwl_mvm_power_allow_uapsd(mvm, vif))
402 iwl_mvm_power_configure_uapsd(mvm, vif, cmd);
403
404#ifdef CONFIG_IWLWIFI_DEBUGFS
405 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_KEEP_ALIVE)
406 cmd->keep_alive_seconds =
407 cpu_to_le16(mvmvif->dbgfs_pm.keep_alive_seconds);
408 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_OVER_DTIM) {
409 if (mvmvif->dbgfs_pm.skip_over_dtim)
410 cmd->flags |=
411 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
412 else
413 cmd->flags &=
414 cpu_to_le16(~POWER_FLAGS_SKIP_OVER_DTIM_MSK);
415 }
416 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_RX_DATA_TIMEOUT)
417 cmd->rx_data_timeout =
418 cpu_to_le32(mvmvif->dbgfs_pm.rx_data_timeout);
419 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_TX_DATA_TIMEOUT)
420 cmd->tx_data_timeout =
421 cpu_to_le32(mvmvif->dbgfs_pm.tx_data_timeout);
422 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS)
423 cmd->skip_dtim_periods = mvmvif->dbgfs_pm.skip_dtim_periods;
424 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_ENA) {
425 if (mvmvif->dbgfs_pm.lprx_ena)
426 cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
427 else
428 cmd->flags &= cpu_to_le16(~POWER_FLAGS_LPRX_ENA_MSK);
429 }
430 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD)
431 cmd->lprx_rssi_threshold = mvmvif->dbgfs_pm.lprx_rssi_threshold;
432 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SNOOZE_ENABLE) {
433 if (mvmvif->dbgfs_pm.snooze_ena)
434 cmd->flags |=
435 cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
436 else
437 cmd->flags &=
438 cpu_to_le16(~POWER_FLAGS_SNOOZE_ENA_MSK);
439 }
440 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_UAPSD_MISBEHAVING) {
441 u16 flag = POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK;
442 if (mvmvif->dbgfs_pm.uapsd_misbehaving)
443 cmd->flags |= cpu_to_le16(flag);
444 else
445 cmd->flags &= cpu_to_le16(flag);
446 }
447#endif /* CONFIG_IWLWIFI_DEBUGFS */
448}
449
450static int iwl_mvm_power_send_cmd(struct iwl_mvm *mvm,
451 struct ieee80211_vif *vif)
452{
453 struct iwl_mac_power_cmd cmd = {};
454
455 iwl_mvm_power_build_cmd(mvm, vif, &cmd);
456 iwl_mvm_power_log(mvm, &cmd);
457#ifdef CONFIG_IWLWIFI_DEBUGFS
458 memcpy(&iwl_mvm_vif_from_mac80211(vif)->mac_pwr_cmd, &cmd, sizeof(cmd));
459#endif
460
461 return iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, 0,
462 sizeof(cmd), &cmd);
463}
464
465int iwl_mvm_power_update_device(struct iwl_mvm *mvm)
466{
467 struct iwl_device_power_cmd cmd = {
468 .flags = 0,
469 };
470
471 if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM)
472 mvm->ps_disabled = true;
473
474 if (!mvm->ps_disabled)
475 cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK);
476
477#ifdef CONFIG_IWLWIFI_DEBUGFS
478 if (test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status) ?
479 mvm->disable_power_off_d3 : mvm->disable_power_off)
480 cmd.flags &=
481 cpu_to_le16(~DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK);
482#endif
483 if (mvm->ext_clock_valid)
484 cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_32K_CLK_VALID_MSK);
485
486 IWL_DEBUG_POWER(mvm,
487 "Sending device power command with flags = 0x%X\n",
488 cmd.flags);
489
490 return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, 0, sizeof(cmd),
491 &cmd);
492}
493
494void iwl_mvm_power_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
495{
496 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
497
498 if (memcmp(vif->bss_conf.bssid, mvmvif->uapsd_misbehaving_bssid,
499 ETH_ALEN))
500 eth_zero_addr(mvmvif->uapsd_misbehaving_bssid);
501}
502
503static void iwl_mvm_power_uapsd_misbehav_ap_iterator(void *_data, u8 *mac,
504 struct ieee80211_vif *vif)
505{
506 u8 *ap_sta_id = _data;
507 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
508
509 /* The ap_sta_id is not expected to change during current association
510 * so no explicit protection is needed
511 */
512 if (mvmvif->ap_sta_id == *ap_sta_id)
513 memcpy(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid,
514 ETH_ALEN);
515}
516
517void iwl_mvm_power_uapsd_misbehaving_ap_notif(struct iwl_mvm *mvm,
518 struct iwl_rx_cmd_buffer *rxb)
519{
520 struct iwl_rx_packet *pkt = rxb_addr(rxb);
521 struct iwl_uapsd_misbehaving_ap_notif *notif = (void *)pkt->data;
522 u8 ap_sta_id = le32_to_cpu(notif->sta_id);
523
524 ieee80211_iterate_active_interfaces_atomic(
525 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
526 iwl_mvm_power_uapsd_misbehav_ap_iterator, &ap_sta_id);
527}
528
529struct iwl_power_vifs {
530 struct iwl_mvm *mvm;
531 struct ieee80211_vif *bss_vif;
532 struct ieee80211_vif *p2p_vif;
533 struct ieee80211_vif *ap_vif;
534 struct ieee80211_vif *monitor_vif;
535 bool p2p_active;
536 bool bss_active;
537 bool ap_active;
538 bool monitor_active;
539};
540
541static void iwl_mvm_power_disable_pm_iterator(void *_data, u8* mac,
542 struct ieee80211_vif *vif)
543{
544 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
545
546 mvmvif->pm_enabled = false;
547}
548
549static void iwl_mvm_power_ps_disabled_iterator(void *_data, u8* mac,
550 struct ieee80211_vif *vif)
551{
552 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
553 bool *disable_ps = _data;
554
555 if (mvmvif->phy_ctxt && mvmvif->phy_ctxt->id < NUM_PHY_CTX)
556 *disable_ps |= mvmvif->ps_disabled;
557}
558
559static 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 bool active = mvmvif->phy_ctxt && mvmvif->phy_ctxt->id < NUM_PHY_CTX;
565
566 if (!mvmvif->uploaded)
567 return;
568
569 switch (ieee80211_vif_type_p2p(vif)) {
570 case NL80211_IFTYPE_P2P_DEVICE:
571 break;
572
573 case NL80211_IFTYPE_P2P_GO:
574 case NL80211_IFTYPE_AP:
575 /* only a single MAC of the same type */
576 WARN_ON(power_iterator->ap_vif);
577 power_iterator->ap_vif = vif;
578 if (active)
579 power_iterator->ap_active = true;
580 break;
581
582 case NL80211_IFTYPE_MONITOR:
583 /* only a single MAC of the same type */
584 WARN_ON(power_iterator->monitor_vif);
585 power_iterator->monitor_vif = vif;
586 if (active)
587 power_iterator->monitor_active = true;
588 break;
589
590 case NL80211_IFTYPE_P2P_CLIENT:
591 /* only a single MAC of the same type */
592 WARN_ON(power_iterator->p2p_vif);
593 power_iterator->p2p_vif = vif;
594 if (active)
595 power_iterator->p2p_active = true;
596 break;
597
598 case NL80211_IFTYPE_STATION:
599 power_iterator->bss_vif = vif;
600 if (active)
601 power_iterator->bss_active = true;
602 break;
603
604 default:
605 break;
606 }
607}
608
609static void iwl_mvm_power_set_pm(struct iwl_mvm *mvm,
610 struct iwl_power_vifs *vifs)
611{
612 struct iwl_mvm_vif *bss_mvmvif = NULL;
613 struct iwl_mvm_vif *p2p_mvmvif = NULL;
614 struct iwl_mvm_vif *ap_mvmvif = NULL;
615 bool client_same_channel = false;
616 bool ap_same_channel = false;
617
618 lockdep_assert_held(&mvm->mutex);
619
620 /* set pm_enable to false */
621 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
622 IEEE80211_IFACE_ITER_NORMAL,
623 iwl_mvm_power_disable_pm_iterator,
624 NULL);
625
626 if (vifs->bss_vif)
627 bss_mvmvif = iwl_mvm_vif_from_mac80211(vifs->bss_vif);
628
629 if (vifs->p2p_vif)
630 p2p_mvmvif = iwl_mvm_vif_from_mac80211(vifs->p2p_vif);
631
632 if (vifs->ap_vif)
633 ap_mvmvif = iwl_mvm_vif_from_mac80211(vifs->ap_vif);
634
635 /* don't allow PM if any TDLS stations exist */
636 if (iwl_mvm_tdls_sta_count(mvm, NULL))
637 return;
638
639 /* enable PM on bss if bss stand alone */
640 if (vifs->bss_active && !vifs->p2p_active && !vifs->ap_active) {
641 bss_mvmvif->pm_enabled = true;
642 return;
643 }
644
645 /* enable PM on p2p if p2p stand alone */
646 if (vifs->p2p_active && !vifs->bss_active && !vifs->ap_active) {
647 p2p_mvmvif->pm_enabled = true;
648 return;
649 }
650
651 if (vifs->bss_active && vifs->p2p_active)
652 client_same_channel = (bss_mvmvif->phy_ctxt->id ==
653 p2p_mvmvif->phy_ctxt->id);
654 if (vifs->bss_active && vifs->ap_active)
655 ap_same_channel = (bss_mvmvif->phy_ctxt->id ==
656 ap_mvmvif->phy_ctxt->id);
657
658 /* clients are not stand alone: enable PM if DCM */
659 if (!(client_same_channel || ap_same_channel)) {
660 if (vifs->bss_active)
661 bss_mvmvif->pm_enabled = true;
662 if (vifs->p2p_active)
663 p2p_mvmvif->pm_enabled = true;
664 return;
665 }
666
667 /*
668 * There is only one channel in the system and there are only
669 * bss and p2p clients that share it
670 */
671 if (client_same_channel && !vifs->ap_active) {
672 /* share same channel*/
673 bss_mvmvif->pm_enabled = true;
674 p2p_mvmvif->pm_enabled = true;
675 }
676}
677
678#ifdef CONFIG_IWLWIFI_DEBUGFS
679int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm,
680 struct ieee80211_vif *vif, char *buf,
681 int bufsz)
682{
683 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
684 struct iwl_mac_power_cmd cmd = {};
685 int pos = 0;
686
687 mutex_lock(&mvm->mutex);
688 memcpy(&cmd, &mvmvif->mac_pwr_cmd, sizeof(cmd));
689 mutex_unlock(&mvm->mutex);
690
691 pos += scnprintf(buf+pos, bufsz-pos, "power_scheme = %d\n",
692 iwlmvm_mod_params.power_scheme);
693 pos += scnprintf(buf+pos, bufsz-pos, "flags = 0x%x\n",
694 le16_to_cpu(cmd.flags));
695 pos += scnprintf(buf+pos, bufsz-pos, "keep_alive = %d\n",
696 le16_to_cpu(cmd.keep_alive_seconds));
697
698 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK)))
699 return pos;
700
701 pos += scnprintf(buf+pos, bufsz-pos, "skip_over_dtim = %d\n",
702 (cmd.flags &
703 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK)) ? 1 : 0);
704 pos += scnprintf(buf+pos, bufsz-pos, "skip_dtim_periods = %d\n",
705 cmd.skip_dtim_periods);
706 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) {
707 pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout = %d\n",
708 le32_to_cpu(cmd.rx_data_timeout));
709 pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout = %d\n",
710 le32_to_cpu(cmd.tx_data_timeout));
711 }
712 if (cmd.flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
713 pos += scnprintf(buf+pos, bufsz-pos,
714 "lprx_rssi_threshold = %d\n",
715 cmd.lprx_rssi_threshold);
716
717 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)))
718 return pos;
719
720 pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout_uapsd = %d\n",
721 le32_to_cpu(cmd.rx_data_timeout_uapsd));
722 pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout_uapsd = %d\n",
723 le32_to_cpu(cmd.tx_data_timeout_uapsd));
724 pos += scnprintf(buf+pos, bufsz-pos, "qndp_tid = %d\n", cmd.qndp_tid);
725 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_ac_flags = 0x%x\n",
726 cmd.uapsd_ac_flags);
727 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_max_sp = %d\n",
728 cmd.uapsd_max_sp);
729 pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_packets = %d\n",
730 cmd.heavy_tx_thld_packets);
731 pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_packets = %d\n",
732 cmd.heavy_rx_thld_packets);
733 pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_percentage = %d\n",
734 cmd.heavy_tx_thld_percentage);
735 pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_percentage = %d\n",
736 cmd.heavy_rx_thld_percentage);
737 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_misbehaving_enable = %d\n",
738 (cmd.flags &
739 cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK)) ?
740 1 : 0);
741
742 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)))
743 return pos;
744
745 pos += scnprintf(buf+pos, bufsz-pos, "snooze_interval = %d\n",
746 cmd.snooze_interval);
747 pos += scnprintf(buf+pos, bufsz-pos, "snooze_window = %d\n",
748 cmd.snooze_window);
749
750 return pos;
751}
752
753void
754iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
755 struct iwl_beacon_filter_cmd *cmd)
756{
757 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
758 struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
759
760 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ENERGY_DELTA)
761 cmd->bf_energy_delta = cpu_to_le32(dbgfs_bf->bf_energy_delta);
762 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA)
763 cmd->bf_roaming_energy_delta =
764 cpu_to_le32(dbgfs_bf->bf_roaming_energy_delta);
765 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_STATE)
766 cmd->bf_roaming_state = cpu_to_le32(dbgfs_bf->bf_roaming_state);
767 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_THRESHOLD)
768 cmd->bf_temp_threshold =
769 cpu_to_le32(dbgfs_bf->bf_temp_threshold);
770 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_FAST_FILTER)
771 cmd->bf_temp_fast_filter =
772 cpu_to_le32(dbgfs_bf->bf_temp_fast_filter);
773 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_SLOW_FILTER)
774 cmd->bf_temp_slow_filter =
775 cpu_to_le32(dbgfs_bf->bf_temp_slow_filter);
776 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_DEBUG_FLAG)
777 cmd->bf_debug_flag = cpu_to_le32(dbgfs_bf->bf_debug_flag);
778 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ESCAPE_TIMER)
779 cmd->bf_escape_timer = cpu_to_le32(dbgfs_bf->bf_escape_timer);
780 if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ESCAPE_TIMER)
781 cmd->ba_escape_timer = cpu_to_le32(dbgfs_bf->ba_escape_timer);
782 if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT)
783 cmd->ba_enable_beacon_abort =
784 cpu_to_le32(dbgfs_bf->ba_enable_beacon_abort);
785}
786#endif
787
788static int _iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
789 struct ieee80211_vif *vif,
790 struct iwl_beacon_filter_cmd *cmd,
791 u32 cmd_flags)
792{
793 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
794 int ret;
795
796 if (mvmvif != mvm->bf_allowed_vif || !vif->bss_conf.dtim_period ||
797 vif->type != NL80211_IFTYPE_STATION || vif->p2p)
798 return 0;
799
800 iwl_mvm_beacon_filter_set_cqm_params(mvm, vif, cmd);
801 iwl_mvm_beacon_filter_debugfs_parameters(vif, cmd);
802 ret = iwl_mvm_beacon_filter_send_cmd(mvm, cmd, cmd_flags);
803
804 if (!ret)
805 mvmvif->bf_data.bf_enabled = true;
806
807 return ret;
808}
809
810int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
811 struct ieee80211_vif *vif,
812 u32 flags)
813{
814 struct iwl_beacon_filter_cmd cmd = {
815 IWL_BF_CMD_CONFIG_DEFAULTS,
816 .bf_enable_beacon_filter = cpu_to_le32(1),
817 };
818
819 return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, flags);
820}
821
822static int _iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
823 struct ieee80211_vif *vif,
824 u32 flags)
825{
826 struct iwl_beacon_filter_cmd cmd = {};
827 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
828 int ret;
829
830 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
831 return 0;
832
833 ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd, flags);
834
835 if (!ret)
836 mvmvif->bf_data.bf_enabled = false;
837
838 return ret;
839}
840
841int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
842 struct ieee80211_vif *vif,
843 u32 flags)
844{
845 return _iwl_mvm_disable_beacon_filter(mvm, vif, flags);
846}
847
848static int iwl_mvm_power_set_ps(struct iwl_mvm *mvm)
849{
850 bool disable_ps;
851 int ret;
852
853 /* disable PS if CAM */
854 disable_ps = (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM);
855 /* ...or if any of the vifs require PS to be off */
856 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
857 IEEE80211_IFACE_ITER_NORMAL,
858 iwl_mvm_power_ps_disabled_iterator,
859 &disable_ps);
860
861 /* update device power state if it has changed */
862 if (mvm->ps_disabled != disable_ps) {
863 bool old_ps_disabled = mvm->ps_disabled;
864
865 mvm->ps_disabled = disable_ps;
866 ret = iwl_mvm_power_update_device(mvm);
867 if (ret) {
868 mvm->ps_disabled = old_ps_disabled;
869 return ret;
870 }
871 }
872
873 return 0;
874}
875
876static int iwl_mvm_power_set_ba(struct iwl_mvm *mvm,
877 struct ieee80211_vif *vif)
878{
879 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
880 struct iwl_beacon_filter_cmd cmd = {
881 IWL_BF_CMD_CONFIG_DEFAULTS,
882 .bf_enable_beacon_filter = cpu_to_le32(1),
883 };
884
885 if (!mvmvif->bf_data.bf_enabled)
886 return 0;
887
888 if (test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))
889 cmd.ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER_D3);
890
891 mvmvif->bf_data.ba_enabled = !(!mvmvif->pm_enabled ||
892 mvm->ps_disabled ||
893 !vif->cfg.ps ||
894 iwl_mvm_vif_low_latency(mvmvif));
895
896 return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, 0);
897}
898
899int iwl_mvm_power_update_ps(struct iwl_mvm *mvm)
900{
901 struct iwl_power_vifs vifs = {
902 .mvm = mvm,
903 };
904 int ret;
905
906 lockdep_assert_held(&mvm->mutex);
907
908 /* get vifs info */
909 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
910 IEEE80211_IFACE_ITER_NORMAL,
911 iwl_mvm_power_get_vifs_iterator, &vifs);
912
913 ret = iwl_mvm_power_set_ps(mvm);
914 if (ret)
915 return ret;
916
917 if (vifs.bss_vif)
918 return iwl_mvm_power_set_ba(mvm, vifs.bss_vif);
919
920 return 0;
921}
922
923int iwl_mvm_power_update_mac(struct iwl_mvm *mvm)
924{
925 struct iwl_power_vifs vifs = {
926 .mvm = mvm,
927 };
928 int ret;
929
930 lockdep_assert_held(&mvm->mutex);
931
932 /* get vifs info */
933 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
934 IEEE80211_IFACE_ITER_NORMAL,
935 iwl_mvm_power_get_vifs_iterator, &vifs);
936
937 iwl_mvm_power_set_pm(mvm, &vifs);
938
939 ret = iwl_mvm_power_set_ps(mvm);
940 if (ret)
941 return ret;
942
943 if (vifs.bss_vif) {
944 ret = iwl_mvm_power_send_cmd(mvm, vifs.bss_vif);
945 if (ret)
946 return ret;
947 }
948
949 if (vifs.p2p_vif) {
950 ret = iwl_mvm_power_send_cmd(mvm, vifs.p2p_vif);
951 if (ret)
952 return ret;
953 }
954
955 if (vifs.bss_vif)
956 return iwl_mvm_power_set_ba(mvm, vifs.bss_vif);
957
958 return 0;
959}