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Merge tag 'trace-printf-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace...
[drm/drm-misc.git] / drivers / net / wireless / intel / iwlwifi / mvm / power.c
blobbc363e8427e49d663d36b38facaf7145ea5f966e
1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3 * Copyright (C) 2012-2014, 2018-2019, 2021-2024 Intel Corporation
4 * Copyright (C) 2013-2014 Intel Mobile Communications GmbH
5 * Copyright (C) 2015-2017 Intel Deutschland GmbH
6 */
7 #include <linux/kernel.h>
8 #include <linux/module.h>
9 #include <linux/slab.h>
10 #include <linux/etherdevice.h>
11
12 #include <net/mac80211.h>
13
14 #include "iwl-debug.h"
15 #include "mvm.h"
16 #include "iwl-modparams.h"
17 #include "fw/api/power.h"
18
19 #define POWER_KEEP_ALIVE_PERIOD_SEC 25
20
21 static
22 int iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm *mvm,
23 struct iwl_beacon_filter_cmd *cmd)
24 {
25 u16 len;
26
27 IWL_DEBUG_POWER(mvm, "ba_enable_beacon_abort is: %d\n",
28 le32_to_cpu(cmd->ba_enable_beacon_abort));
29 IWL_DEBUG_POWER(mvm, "ba_escape_timer is: %d\n",
30 le32_to_cpu(cmd->ba_escape_timer));
31 IWL_DEBUG_POWER(mvm, "bf_debug_flag is: %d\n",
32 le32_to_cpu(cmd->bf_debug_flag));
33 IWL_DEBUG_POWER(mvm, "bf_enable_beacon_filter is: %d\n",
34 le32_to_cpu(cmd->bf_enable_beacon_filter));
35 IWL_DEBUG_POWER(mvm, "bf_energy_delta is: %d\n",
36 le32_to_cpu(cmd->bf_energy_delta));
37 IWL_DEBUG_POWER(mvm, "bf_escape_timer is: %d\n",
38 le32_to_cpu(cmd->bf_escape_timer));
39 IWL_DEBUG_POWER(mvm, "bf_roaming_energy_delta is: %d\n",
40 le32_to_cpu(cmd->bf_roaming_energy_delta));
41 IWL_DEBUG_POWER(mvm, "bf_roaming_state is: %d\n",
42 le32_to_cpu(cmd->bf_roaming_state));
43 IWL_DEBUG_POWER(mvm, "bf_temp_threshold is: %d\n",
44 le32_to_cpu(cmd->bf_temp_threshold));
45 IWL_DEBUG_POWER(mvm, "bf_temp_fast_filter is: %d\n",
46 le32_to_cpu(cmd->bf_temp_fast_filter));
47 IWL_DEBUG_POWER(mvm, "bf_temp_slow_filter is: %d\n",
48 le32_to_cpu(cmd->bf_temp_slow_filter));
49 IWL_DEBUG_POWER(mvm, "bf_threshold_absolute_low is: %d, %d\n",
50 le32_to_cpu(cmd->bf_threshold_absolute_low[0]),
51 le32_to_cpu(cmd->bf_threshold_absolute_low[1]));
52
53 IWL_DEBUG_POWER(mvm, "bf_threshold_absolute_high is: %d, %d\n",
54 le32_to_cpu(cmd->bf_threshold_absolute_high[0]),
55 le32_to_cpu(cmd->bf_threshold_absolute_high[1]));
56
57 if (fw_has_api(&mvm->fw->ucode_capa,
58 IWL_UCODE_TLV_API_BEACON_FILTER_V4))
59 len = sizeof(struct iwl_beacon_filter_cmd);
60 else
61 len = offsetof(struct iwl_beacon_filter_cmd,
62 bf_threshold_absolute_low);
63
64 return iwl_mvm_send_cmd_pdu(mvm, REPLY_BEACON_FILTERING_CMD, 0,
65 len, cmd);
66 }
67
68 static
69 void iwl_mvm_beacon_filter_set_cqm_params(struct iwl_mvm *mvm,
70 struct ieee80211_vif *vif,
71 struct iwl_beacon_filter_cmd *cmd)
72 {
73 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
74
75 if (vif->bss_conf.cqm_rssi_thold) {
76 cmd->bf_energy_delta =
77 cpu_to_le32(vif->bss_conf.cqm_rssi_hyst);
78 /* fw uses an absolute value for this */
79 cmd->bf_roaming_state =
80 cpu_to_le32(-vif->bss_conf.cqm_rssi_thold);
81 }
82 cmd->ba_enable_beacon_abort = cpu_to_le32(mvmvif->ba_enabled);
83 }
84
85 static void iwl_mvm_power_log(struct iwl_mvm *mvm,
86 struct iwl_mac_power_cmd *cmd)
87 {
88 IWL_DEBUG_POWER(mvm,
89 "Sending power table command on mac id 0x%X for power level %d, flags = 0x%X\n",
90 cmd->id_and_color, iwlmvm_mod_params.power_scheme,
91 le16_to_cpu(cmd->flags));
92 IWL_DEBUG_POWER(mvm, "Keep alive = %u sec\n",
93 le16_to_cpu(cmd->keep_alive_seconds));
94
95 if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK))) {
96 IWL_DEBUG_POWER(mvm, "Disable power management\n");
97 return;
98 }
99
100 IWL_DEBUG_POWER(mvm, "Rx timeout = %u usec\n",
101 le32_to_cpu(cmd->rx_data_timeout));
102 IWL_DEBUG_POWER(mvm, "Tx timeout = %u usec\n",
103 le32_to_cpu(cmd->tx_data_timeout));
104 if (cmd->flags & cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK))
105 IWL_DEBUG_POWER(mvm, "DTIM periods to skip = %u\n",
106 cmd->skip_dtim_periods);
107 if (cmd->flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
108 IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n",
109 cmd->lprx_rssi_threshold);
110 if (cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)) {
111 IWL_DEBUG_POWER(mvm, "uAPSD enabled\n");
112 IWL_DEBUG_POWER(mvm, "Rx timeout (uAPSD) = %u usec\n",
113 le32_to_cpu(cmd->rx_data_timeout_uapsd));
114 IWL_DEBUG_POWER(mvm, "Tx timeout (uAPSD) = %u usec\n",
115 le32_to_cpu(cmd->tx_data_timeout_uapsd));
116 IWL_DEBUG_POWER(mvm, "QNDP TID = %d\n", cmd->qndp_tid);
117 IWL_DEBUG_POWER(mvm, "ACs flags = 0x%x\n", cmd->uapsd_ac_flags);
118 IWL_DEBUG_POWER(mvm, "Max SP = %d\n", cmd->uapsd_max_sp);
119 }
120 }
121
122 static void iwl_mvm_power_configure_uapsd(struct iwl_mvm *mvm,
123 struct ieee80211_vif *vif,
124 struct iwl_mac_power_cmd *cmd)
125 {
126 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
127 enum ieee80211_ac_numbers ac;
128 bool tid_found = false;
129
130 if (test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status) ||
131 cmd->flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
132 cmd->rx_data_timeout_uapsd =
133 cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
134 cmd->tx_data_timeout_uapsd =
135 cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
136 } else {
137 cmd->rx_data_timeout_uapsd =
138 cpu_to_le32(IWL_MVM_UAPSD_RX_DATA_TIMEOUT);
139 cmd->tx_data_timeout_uapsd =
140 cpu_to_le32(IWL_MVM_UAPSD_TX_DATA_TIMEOUT);
141 }
142
143 #ifdef CONFIG_IWLWIFI_DEBUGFS
144 /* set advanced pm flag with no uapsd ACs to enable ps-poll */
145 if (mvmvif->dbgfs_pm.use_ps_poll) {
146 cmd->flags |= cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
147 return;
148 }
149 #endif
150
151 for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_BK; ac++) {
152 if (!mvmvif->deflink.queue_params[ac].uapsd)
153 continue;
154
155 if (!test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))
156 cmd->flags |=
157 cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
158
159 cmd->uapsd_ac_flags |= BIT(ac);
160
161 /* QNDP TID - the highest TID with no admission control */
162 if (!tid_found && !mvmvif->deflink.queue_params[ac].acm) {
163 tid_found = true;
164 switch (ac) {
165 case IEEE80211_AC_VO:
166 cmd->qndp_tid = 6;
167 break;
168 case IEEE80211_AC_VI:
169 cmd->qndp_tid = 5;
170 break;
171 case IEEE80211_AC_BE:
172 cmd->qndp_tid = 0;
173 break;
174 case IEEE80211_AC_BK:
175 cmd->qndp_tid = 1;
176 break;
177 }
178 }
179 }
180
181 cmd->flags |= cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK);
182
183 if (cmd->uapsd_ac_flags == (BIT(IEEE80211_AC_VO) |
184 BIT(IEEE80211_AC_VI) |
185 BIT(IEEE80211_AC_BE) |
186 BIT(IEEE80211_AC_BK))) {
187 cmd->flags |= cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
188 cmd->snooze_interval = cpu_to_le16(IWL_MVM_PS_SNOOZE_INTERVAL);
189 cmd->snooze_window =
190 test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status) ?
191 cpu_to_le16(IWL_MVM_WOWLAN_PS_SNOOZE_WINDOW) :
192 cpu_to_le16(IWL_MVM_PS_SNOOZE_WINDOW);
193 }
194
195 cmd->uapsd_max_sp = mvm->hw->uapsd_max_sp_len;
196
197 if (cmd->flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
198 cmd->heavy_tx_thld_packets =
199 IWL_MVM_PS_SNOOZE_HEAVY_TX_THLD_PACKETS;
200 cmd->heavy_rx_thld_packets =
201 IWL_MVM_PS_SNOOZE_HEAVY_RX_THLD_PACKETS;
202 } else {
203 cmd->heavy_tx_thld_packets =
204 IWL_MVM_PS_HEAVY_TX_THLD_PACKETS;
205 cmd->heavy_rx_thld_packets =
206 IWL_MVM_PS_HEAVY_RX_THLD_PACKETS;
207 }
208 cmd->heavy_tx_thld_percentage =
209 IWL_MVM_PS_HEAVY_TX_THLD_PERCENT;
210 cmd->heavy_rx_thld_percentage =
211 IWL_MVM_PS_HEAVY_RX_THLD_PERCENT;
212 }
213
214 struct iwl_allow_uapsd_iface_iterator_data {
215 struct ieee80211_vif *current_vif;
216 bool allow_uapsd;
217 };
218
219 static void iwl_mvm_allow_uapsd_iterator(void *_data, u8 *mac,
220 struct ieee80211_vif *vif)
221 {
222 struct iwl_allow_uapsd_iface_iterator_data *data = _data;
223 struct iwl_mvm_vif *other_mvmvif = iwl_mvm_vif_from_mac80211(vif);
224 struct iwl_mvm_vif *curr_mvmvif =
225 iwl_mvm_vif_from_mac80211(data->current_vif);
226
227 /* exclude the given vif */
228 if (vif == data->current_vif)
229 return;
230
231 switch (vif->type) {
232 case NL80211_IFTYPE_AP:
233 case NL80211_IFTYPE_ADHOC:
234 case NL80211_IFTYPE_NAN:
235 data->allow_uapsd = false;
236 break;
237 case NL80211_IFTYPE_STATION:
238 /* allow UAPSD if P2P interface and BSS station interface share
239 * the same channel.
240 */
241 if (vif->cfg.assoc && other_mvmvif->deflink.phy_ctxt &&
242 curr_mvmvif->deflink.phy_ctxt &&
243 other_mvmvif->deflink.phy_ctxt->id != curr_mvmvif->deflink.phy_ctxt->id)
244 data->allow_uapsd = false;
245 break;
246
247 default:
248 break;
249 }
250 }
251
252 static bool iwl_mvm_power_allow_uapsd(struct iwl_mvm *mvm,
253 struct ieee80211_vif *vif)
254 {
255 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
256 struct iwl_allow_uapsd_iface_iterator_data data = {
257 .current_vif = vif,
258 .allow_uapsd = true,
259 };
260
261 if (ether_addr_equal(mvmvif->uapsd_misbehaving_ap_addr,
262 vif->cfg.ap_addr))
263 return false;
264
265 /*
266 * Avoid using uAPSD if P2P client is associated to GO that uses
267 * opportunistic power save. This is due to current FW limitation.
268 */
269 if (vif->p2p &&
270 (vif->bss_conf.p2p_noa_attr.oppps_ctwindow &
271 IEEE80211_P2P_OPPPS_ENABLE_BIT))
272 return false;
273
274 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm))
275 return false;
276
277 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
278 IEEE80211_IFACE_ITER_NORMAL,
279 iwl_mvm_allow_uapsd_iterator,
280 &data);
281
282 return data.allow_uapsd;
283 }
284
285 static bool iwl_mvm_power_is_radar(struct ieee80211_bss_conf *link_conf)
286 {
287 struct ieee80211_chanctx_conf *chanctx_conf;
288
289 chanctx_conf = rcu_dereference(link_conf->chanctx_conf);
290
291 /* this happens on link switching, just ignore inactive ones */
292 if (!chanctx_conf)
293 return false;
294
295 return chanctx_conf->def.chan->flags & IEEE80211_CHAN_RADAR;
296 }
297
298 static void iwl_mvm_power_config_skip_dtim(struct iwl_mvm *mvm,
299 struct ieee80211_vif *vif,
300 struct iwl_mac_power_cmd *cmd)
301 {
302 struct ieee80211_bss_conf *link_conf;
303 unsigned int min_link_skip = ~0;
304 unsigned int link_id;
305
306 /* disable, in case we're supposed to override */
307 cmd->skip_dtim_periods = 0;
308 cmd->flags &= ~cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
309
310 if (!test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status)) {
311 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_LP)
312 return;
313 cmd->skip_dtim_periods = 2;
314 cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
315 return;
316 }
317
318 rcu_read_lock();
319 for_each_vif_active_link(vif, link_conf, link_id) {
320 unsigned int dtimper = link_conf->dtim_period ?: 1;
321 unsigned int dtimper_tu = dtimper * link_conf->beacon_int;
322 unsigned int skip;
323
324 if (dtimper >= 10 || iwl_mvm_power_is_radar(link_conf)) {
325 rcu_read_unlock();
326 return;
327 }
328
329 if (WARN_ON(!dtimper_tu))
330 continue;
331
332 /* configure skip over dtim up to 900 TU DTIM interval */
333 skip = max_t(int, 1, 900 / dtimper_tu);
334 min_link_skip = min(min_link_skip, skip);
335 }
336 rcu_read_unlock();
337
338 /* no WARN_ON, can only happen with WARN_ON above */
339 if (min_link_skip == ~0)
340 return;
341
342 cmd->skip_dtim_periods = min_link_skip;
343 cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
344 }
345
346 static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm,
347 struct ieee80211_vif *vif,
348 struct iwl_mac_power_cmd *cmd)
349 {
350 int dtimper, bi;
351 int keep_alive;
352 struct iwl_mvm_vif *mvmvif __maybe_unused =
353 iwl_mvm_vif_from_mac80211(vif);
354
355 cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
356 mvmvif->color));
357 dtimper = vif->bss_conf.dtim_period;
358 bi = vif->bss_conf.beacon_int;
359
360 /*
361 * Regardless of power management state the driver must set
362 * keep alive period. FW will use it for sending keep alive NDPs
363 * immediately after association. Check that keep alive period
364 * is at least 3 * DTIM
365 */
366 keep_alive = DIV_ROUND_UP(ieee80211_tu_to_usec(3 * dtimper * bi),
367 USEC_PER_SEC);
368 keep_alive = max(keep_alive, POWER_KEEP_ALIVE_PERIOD_SEC);
369 cmd->keep_alive_seconds = cpu_to_le16(keep_alive);
370
371 if (mvm->ps_disabled)
372 return;
373
374 cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
375
376 if (!vif->cfg.ps || !mvmvif->pm_enabled)
377 return;
378
379 if (iwl_mvm_vif_low_latency(mvmvif) && vif->p2p &&
380 (!fw_has_capa(&mvm->fw->ucode_capa,
381 IWL_UCODE_TLV_CAPA_SHORT_PM_TIMEOUTS) ||
382 !IWL_MVM_P2P_LOWLATENCY_PS_ENABLE))
383 return;
384
385 cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK);
386
387 if (vif->bss_conf.beacon_rate &&
388 (vif->bss_conf.beacon_rate->bitrate == 10 ||
389 vif->bss_conf.beacon_rate->bitrate == 60)) {
390 cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
391 cmd->lprx_rssi_threshold = POWER_LPRX_RSSI_THRESHOLD;
392 }
393
394 iwl_mvm_power_config_skip_dtim(mvm, vif, cmd);
395
396 if (test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status)) {
397 cmd->rx_data_timeout =
398 cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
399 cmd->tx_data_timeout =
400 cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
401 } else if (iwl_mvm_vif_low_latency(mvmvif) && vif->p2p &&
402 fw_has_capa(&mvm->fw->ucode_capa,
403 IWL_UCODE_TLV_CAPA_SHORT_PM_TIMEOUTS)) {
404 cmd->tx_data_timeout =
405 cpu_to_le32(IWL_MVM_SHORT_PS_TX_DATA_TIMEOUT);
406 cmd->rx_data_timeout =
407 cpu_to_le32(IWL_MVM_SHORT_PS_RX_DATA_TIMEOUT);
408 } else {
409 cmd->rx_data_timeout =
410 cpu_to_le32(IWL_MVM_DEFAULT_PS_RX_DATA_TIMEOUT);
411 cmd->tx_data_timeout =
412 cpu_to_le32(IWL_MVM_DEFAULT_PS_TX_DATA_TIMEOUT);
413 }
414
415 if (iwl_mvm_power_allow_uapsd(mvm, vif))
416 iwl_mvm_power_configure_uapsd(mvm, vif, cmd);
417
418 #ifdef CONFIG_IWLWIFI_DEBUGFS
419 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_KEEP_ALIVE)
420 cmd->keep_alive_seconds =
421 cpu_to_le16(mvmvif->dbgfs_pm.keep_alive_seconds);
422 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_OVER_DTIM) {
423 if (mvmvif->dbgfs_pm.skip_over_dtim)
424 cmd->flags |=
425 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
426 else
427 cmd->flags &=
428 cpu_to_le16(~POWER_FLAGS_SKIP_OVER_DTIM_MSK);
429 }
430 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_RX_DATA_TIMEOUT)
431 cmd->rx_data_timeout =
432 cpu_to_le32(mvmvif->dbgfs_pm.rx_data_timeout);
433 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_TX_DATA_TIMEOUT)
434 cmd->tx_data_timeout =
435 cpu_to_le32(mvmvif->dbgfs_pm.tx_data_timeout);
436 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS)
437 cmd->skip_dtim_periods = mvmvif->dbgfs_pm.skip_dtim_periods;
438 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_ENA) {
439 if (mvmvif->dbgfs_pm.lprx_ena)
440 cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
441 else
442 cmd->flags &= cpu_to_le16(~POWER_FLAGS_LPRX_ENA_MSK);
443 }
444 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD)
445 cmd->lprx_rssi_threshold = mvmvif->dbgfs_pm.lprx_rssi_threshold;
446 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SNOOZE_ENABLE) {
447 if (mvmvif->dbgfs_pm.snooze_ena)
448 cmd->flags |=
449 cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
450 else
451 cmd->flags &=
452 cpu_to_le16(~POWER_FLAGS_SNOOZE_ENA_MSK);
453 }
454 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_UAPSD_MISBEHAVING) {
455 u16 flag = POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK;
456 if (mvmvif->dbgfs_pm.uapsd_misbehaving)
457 cmd->flags |= cpu_to_le16(flag);
458 else
459 cmd->flags &= cpu_to_le16(flag);
460 }
461 #endif /* CONFIG_IWLWIFI_DEBUGFS */
462 }
463
464 static int iwl_mvm_power_send_cmd(struct iwl_mvm *mvm,
465 struct ieee80211_vif *vif)
466 {
467 struct iwl_mac_power_cmd cmd = {};
468
469 iwl_mvm_power_build_cmd(mvm, vif, &cmd);
470 iwl_mvm_power_log(mvm, &cmd);
471 #ifdef CONFIG_IWLWIFI_DEBUGFS
472 memcpy(&iwl_mvm_vif_from_mac80211(vif)->mac_pwr_cmd, &cmd, sizeof(cmd));
473 #endif
474
475 return iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, 0,
476 sizeof(cmd), &cmd);
477 }
478
479 int iwl_mvm_power_update_device(struct iwl_mvm *mvm)
480 {
481 struct iwl_device_power_cmd cmd = {
482 .flags = 0,
483 };
484
485 if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM)
486 mvm->ps_disabled = true;
487
488 if (!mvm->ps_disabled)
489 cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK);
490
491 #ifdef CONFIG_IWLWIFI_DEBUGFS
492 if (test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status) ?
493 mvm->disable_power_off_d3 : mvm->disable_power_off)
494 cmd.flags &=
495 cpu_to_le16(~DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK);
496 #endif
497 if (mvm->ext_clock_valid)
498 cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_32K_CLK_VALID_MSK);
499
500 if (iwl_fw_lookup_cmd_ver(mvm->fw, POWER_TABLE_CMD, 0) >= 7 &&
501 test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))
502 cmd.flags |=
503 cpu_to_le16(DEVICE_POWER_FLAGS_NO_SLEEP_TILL_D3_MSK);
504
505 IWL_DEBUG_POWER(mvm,
506 "Sending device power command with flags = 0x%X\n",
507 cmd.flags);
508
509 return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, 0, sizeof(cmd),
510 &cmd);
511 }
512
513 void iwl_mvm_power_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
514 {
515 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
516
517 if (!ether_addr_equal(mvmvif->uapsd_misbehaving_ap_addr,
518 vif->cfg.ap_addr))
519 eth_zero_addr(mvmvif->uapsd_misbehaving_ap_addr);
520 }
521
522 static void iwl_mvm_power_uapsd_misbehav_ap_iterator(void *_data, u8 *mac,
523 struct ieee80211_vif *vif)
524 {
525 u8 *ap_sta_id = _data;
526 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
527 struct ieee80211_bss_conf *link_conf;
528 unsigned int link_id;
529
530 rcu_read_lock();
531 for_each_vif_active_link(vif, link_conf, link_id) {
532 struct iwl_mvm_vif_link_info *link_info = mvmvif->link[link_id];
533
534 /* The ap_sta_id is not expected to change during current
535 * association so no explicit protection is needed
536 */
537 if (link_info->ap_sta_id == *ap_sta_id) {
538 ether_addr_copy(mvmvif->uapsd_misbehaving_ap_addr,
539 vif->cfg.ap_addr);
540 break;
541 }
542 }
543 rcu_read_unlock();
544 }
545
546 void iwl_mvm_power_uapsd_misbehaving_ap_notif(struct iwl_mvm *mvm,
547 struct iwl_rx_cmd_buffer *rxb)
548 {
549 struct iwl_rx_packet *pkt = rxb_addr(rxb);
550 struct iwl_uapsd_misbehaving_ap_notif *notif = (void *)pkt->data;
551 u8 ap_sta_id = le32_to_cpu(notif->sta_id);
552
553 ieee80211_iterate_active_interfaces_atomic(
554 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
555 iwl_mvm_power_uapsd_misbehav_ap_iterator, &ap_sta_id);
556 }
557
558 struct iwl_power_vifs {
559 struct iwl_mvm *mvm;
560 struct ieee80211_vif *bss_vif;
561 struct ieee80211_vif *p2p_vif;
562 struct ieee80211_vif *ap_vif;
563 struct ieee80211_vif *monitor_vif;
564 bool p2p_active;
565 bool bss_active;
566 bool ap_active;
567 bool monitor_active;
568 };
569
570 static void iwl_mvm_power_disable_pm_iterator(void *_data, u8* mac,
571 struct ieee80211_vif *vif)
572 {
573 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
574
575 mvmvif->pm_enabled = false;
576 }
577
578 static void iwl_mvm_power_ps_disabled_iterator(void *_data, u8* mac,
579 struct ieee80211_vif *vif)
580 {
581 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
582 bool *disable_ps = _data;
583
584 if (iwl_mvm_vif_is_active(mvmvif))
585 *disable_ps |= mvmvif->ps_disabled;
586 }
587
588 static void iwl_mvm_power_get_vifs_iterator(void *_data, u8 *mac,
589 struct ieee80211_vif *vif)
590 {
591 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
592 struct iwl_power_vifs *power_iterator = _data;
593 bool active;
594
595 if (!mvmvif->uploaded)
596 return;
597
598 active = iwl_mvm_vif_is_active(mvmvif);
599
600 switch (ieee80211_vif_type_p2p(vif)) {
601 case NL80211_IFTYPE_P2P_DEVICE:
602 break;
603
604 case NL80211_IFTYPE_P2P_GO:
605 case NL80211_IFTYPE_AP:
606 /* only a single MAC of the same type */
607 WARN_ON(power_iterator->ap_vif);
608 power_iterator->ap_vif = vif;
609 if (active)
610 power_iterator->ap_active = true;
611 break;
612
613 case NL80211_IFTYPE_MONITOR:
614 /* only a single MAC of the same type */
615 WARN_ON(power_iterator->monitor_vif);
616 power_iterator->monitor_vif = vif;
617 if (active)
618 power_iterator->monitor_active = true;
619 break;
620
621 case NL80211_IFTYPE_P2P_CLIENT:
622 /* only a single MAC of the same type */
623 WARN_ON(power_iterator->p2p_vif);
624 power_iterator->p2p_vif = vif;
625 if (active)
626 power_iterator->p2p_active = true;
627 break;
628
629 case NL80211_IFTYPE_STATION:
630 power_iterator->bss_vif = vif;
631 if (active)
632 power_iterator->bss_active = true;
633 break;
634
635 default:
636 break;
637 }
638 }
639
640 static void iwl_mvm_power_set_pm(struct iwl_mvm *mvm,
641 struct iwl_power_vifs *vifs)
642 {
643 struct iwl_mvm_vif *bss_mvmvif = NULL;
644 struct iwl_mvm_vif *p2p_mvmvif = NULL;
645 struct iwl_mvm_vif *ap_mvmvif = NULL;
646 bool client_same_channel = false;
647 bool ap_same_channel = false;
648
649 lockdep_assert_held(&mvm->mutex);
650
651 /* set pm_enable to false */
652 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
653 IEEE80211_IFACE_ITER_NORMAL,
654 iwl_mvm_power_disable_pm_iterator,
655 NULL);
656
657 if (vifs->bss_vif)
658 bss_mvmvif = iwl_mvm_vif_from_mac80211(vifs->bss_vif);
659
660 if (vifs->p2p_vif)
661 p2p_mvmvif = iwl_mvm_vif_from_mac80211(vifs->p2p_vif);
662
663 if (vifs->ap_vif)
664 ap_mvmvif = iwl_mvm_vif_from_mac80211(vifs->ap_vif);
665
666 /* don't allow PM if any TDLS stations exist */
667 if (iwl_mvm_tdls_sta_count(mvm, NULL))
668 return;
669
670 /* enable PM on bss if bss stand alone */
671 if (bss_mvmvif && vifs->bss_active && !vifs->p2p_active &&
672 !vifs->ap_active) {
673 bss_mvmvif->pm_enabled = true;
674 return;
675 }
676
677 /* enable PM on p2p if p2p stand alone */
678 if (p2p_mvmvif && vifs->p2p_active && !vifs->bss_active &&
679 !vifs->ap_active) {
680 p2p_mvmvif->pm_enabled = true;
681 return;
682 }
683
684 if (p2p_mvmvif && bss_mvmvif && vifs->bss_active && vifs->p2p_active)
685 client_same_channel =
686 iwl_mvm_have_links_same_channel(bss_mvmvif, p2p_mvmvif);
687
688 if (bss_mvmvif && ap_mvmvif && vifs->bss_active && vifs->ap_active)
689 ap_same_channel =
690 iwl_mvm_have_links_same_channel(bss_mvmvif, ap_mvmvif);
691
692 /* clients are not stand alone: enable PM if DCM */
693 if (!(client_same_channel || ap_same_channel)) {
694 if (bss_mvmvif && vifs->bss_active)
695 bss_mvmvif->pm_enabled = true;
696 if (p2p_mvmvif && vifs->p2p_active)
697 p2p_mvmvif->pm_enabled = true;
698 return;
699 }
700
701 /*
702 * There is only one channel in the system and there are only
703 * bss and p2p clients that share it
704 */
705 if (client_same_channel && !vifs->ap_active) {
706 /* share same channel*/
707 bss_mvmvif->pm_enabled = true;
708 p2p_mvmvif->pm_enabled = true;
709 }
710 }
711
712 #ifdef CONFIG_IWLWIFI_DEBUGFS
713 int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm,
714 struct ieee80211_vif *vif, char *buf,
715 int bufsz)
716 {
717 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
718 struct iwl_mac_power_cmd cmd = {};
719 int pos = 0;
720
721 mutex_lock(&mvm->mutex);
722 memcpy(&cmd, &mvmvif->mac_pwr_cmd, sizeof(cmd));
723 mutex_unlock(&mvm->mutex);
724
725 pos += scnprintf(buf+pos, bufsz-pos, "power_scheme = %d\n",
726 iwlmvm_mod_params.power_scheme);
727 pos += scnprintf(buf+pos, bufsz-pos, "flags = 0x%x\n",
728 le16_to_cpu(cmd.flags));
729 pos += scnprintf(buf+pos, bufsz-pos, "keep_alive = %d\n",
730 le16_to_cpu(cmd.keep_alive_seconds));
731
732 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK)))
733 return pos;
734
735 pos += scnprintf(buf+pos, bufsz-pos, "skip_over_dtim = %d\n",
736 (cmd.flags &
737 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK)) ? 1 : 0);
738 pos += scnprintf(buf+pos, bufsz-pos, "skip_dtim_periods = %d\n",
739 cmd.skip_dtim_periods);
740 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) {
741 pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout = %d\n",
742 le32_to_cpu(cmd.rx_data_timeout));
743 pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout = %d\n",
744 le32_to_cpu(cmd.tx_data_timeout));
745 }
746 if (cmd.flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
747 pos += scnprintf(buf+pos, bufsz-pos,
748 "lprx_rssi_threshold = %d\n",
749 cmd.lprx_rssi_threshold);
750
751 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)))
752 return pos;
753
754 pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout_uapsd = %d\n",
755 le32_to_cpu(cmd.rx_data_timeout_uapsd));
756 pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout_uapsd = %d\n",
757 le32_to_cpu(cmd.tx_data_timeout_uapsd));
758 pos += scnprintf(buf+pos, bufsz-pos, "qndp_tid = %d\n", cmd.qndp_tid);
759 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_ac_flags = 0x%x\n",
760 cmd.uapsd_ac_flags);
761 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_max_sp = %d\n",
762 cmd.uapsd_max_sp);
763 pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_packets = %d\n",
764 cmd.heavy_tx_thld_packets);
765 pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_packets = %d\n",
766 cmd.heavy_rx_thld_packets);
767 pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_percentage = %d\n",
768 cmd.heavy_tx_thld_percentage);
769 pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_percentage = %d\n",
770 cmd.heavy_rx_thld_percentage);
771 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_misbehaving_enable = %d\n",
772 (cmd.flags &
773 cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK)) ?
774 1 : 0);
775
776 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)))
777 return pos;
778
779 pos += scnprintf(buf+pos, bufsz-pos, "snooze_interval = %d\n",
780 cmd.snooze_interval);
781 pos += scnprintf(buf+pos, bufsz-pos, "snooze_window = %d\n",
782 cmd.snooze_window);
783
784 return pos;
785 }
786
787 void
788 iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
789 struct iwl_beacon_filter_cmd *cmd)
790 {
791 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
792 struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
793
794 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ENERGY_DELTA)
795 cmd->bf_energy_delta = cpu_to_le32(dbgfs_bf->bf_energy_delta);
796 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA)
797 cmd->bf_roaming_energy_delta =
798 cpu_to_le32(dbgfs_bf->bf_roaming_energy_delta);
799 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_STATE)
800 cmd->bf_roaming_state = cpu_to_le32(dbgfs_bf->bf_roaming_state);
801 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_THRESHOLD)
802 cmd->bf_temp_threshold =
803 cpu_to_le32(dbgfs_bf->bf_temp_threshold);
804 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_FAST_FILTER)
805 cmd->bf_temp_fast_filter =
806 cpu_to_le32(dbgfs_bf->bf_temp_fast_filter);
807 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_SLOW_FILTER)
808 cmd->bf_temp_slow_filter =
809 cpu_to_le32(dbgfs_bf->bf_temp_slow_filter);
810 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_DEBUG_FLAG)
811 cmd->bf_debug_flag = cpu_to_le32(dbgfs_bf->bf_debug_flag);
812 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ESCAPE_TIMER)
813 cmd->bf_escape_timer = cpu_to_le32(dbgfs_bf->bf_escape_timer);
814 if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ESCAPE_TIMER)
815 cmd->ba_escape_timer = cpu_to_le32(dbgfs_bf->ba_escape_timer);
816 if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT)
817 cmd->ba_enable_beacon_abort =
818 cpu_to_le32(dbgfs_bf->ba_enable_beacon_abort);
819 }
820 #endif
821
822 static int _iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
823 struct ieee80211_vif *vif,
824 struct iwl_beacon_filter_cmd *cmd)
825 {
826 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
827 int ret;
828
829 if (mvmvif != mvm->bf_allowed_vif || !vif->bss_conf.dtim_period ||
830 vif->type != NL80211_IFTYPE_STATION || vif->p2p)
831 return 0;
832
833 iwl_mvm_beacon_filter_set_cqm_params(mvm, vif, cmd);
834 iwl_mvm_beacon_filter_debugfs_parameters(vif, cmd);
835 ret = iwl_mvm_beacon_filter_send_cmd(mvm, cmd);
836
837 if (!ret)
838 mvmvif->bf_enabled = true;
839
840 return ret;
841 }
842
843 int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
844 struct ieee80211_vif *vif)
845 {
846 struct iwl_beacon_filter_cmd cmd = {
847 IWL_BF_CMD_CONFIG_DEFAULTS,
848 .bf_enable_beacon_filter = cpu_to_le32(1),
849 };
850
851 return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd);
852 }
853
854 static int _iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
855 struct ieee80211_vif *vif)
856 {
857 struct iwl_beacon_filter_cmd cmd = {};
858 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
859 int ret;
860
861 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
862 return 0;
863
864 ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
865
866 if (!ret)
867 mvmvif->bf_enabled = false;
868
869 return ret;
870 }
871
872 int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
873 struct ieee80211_vif *vif)
874 {
875 return _iwl_mvm_disable_beacon_filter(mvm, vif);
876 }
877
878 static int iwl_mvm_power_set_ps(struct iwl_mvm *mvm)
879 {
880 bool disable_ps;
881 int ret;
882
883 /* disable PS if CAM */
884 disable_ps = (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM);
885 /* ...or if any of the vifs require PS to be off */
886 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
887 IEEE80211_IFACE_ITER_NORMAL,
888 iwl_mvm_power_ps_disabled_iterator,
889 &disable_ps);
890
891 /* update device power state if it has changed */
892 if (mvm->ps_disabled != disable_ps) {
893 bool old_ps_disabled = mvm->ps_disabled;
894
895 mvm->ps_disabled = disable_ps;
896 ret = iwl_mvm_power_update_device(mvm);
897 if (ret) {
898 mvm->ps_disabled = old_ps_disabled;
899 return ret;
900 }
901 }
902
903 return 0;
904 }
905
906 static int iwl_mvm_power_set_ba(struct iwl_mvm *mvm,
907 struct ieee80211_vif *vif)
908 {
909 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
910 struct iwl_beacon_filter_cmd cmd = {
911 IWL_BF_CMD_CONFIG_DEFAULTS,
912 .bf_enable_beacon_filter = cpu_to_le32(1),
913 };
914
915 if (!mvmvif->bf_enabled)
916 return 0;
917
918 if (test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))
919 cmd.ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER_D3);
920
921 mvmvif->ba_enabled = !(!mvmvif->pm_enabled ||
922 mvm->ps_disabled ||
923 !vif->cfg.ps ||
924 iwl_mvm_vif_low_latency(mvmvif));
925
926 return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd);
927 }
928
929 int iwl_mvm_power_update_ps(struct iwl_mvm *mvm)
930 {
931 struct iwl_power_vifs vifs = {
932 .mvm = mvm,
933 };
934 int ret;
935
936 lockdep_assert_held(&mvm->mutex);
937
938 /* get vifs info */
939 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
940 IEEE80211_IFACE_ITER_NORMAL,
941 iwl_mvm_power_get_vifs_iterator, &vifs);
942
943 ret = iwl_mvm_power_set_ps(mvm);
944 if (ret)
945 return ret;
946
947 if (vifs.bss_vif)
948 return iwl_mvm_power_set_ba(mvm, vifs.bss_vif);
949
950 return 0;
951 }
952
953 int iwl_mvm_power_update_mac(struct iwl_mvm *mvm)
954 {
955 struct iwl_power_vifs vifs = {
956 .mvm = mvm,
957 };
958 int ret;
959
960 lockdep_assert_held(&mvm->mutex);
961
962 /* get vifs info */
963 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
964 IEEE80211_IFACE_ITER_NORMAL,
965 iwl_mvm_power_get_vifs_iterator, &vifs);
966
967 iwl_mvm_power_set_pm(mvm, &vifs);
968
969 ret = iwl_mvm_power_set_ps(mvm);
970 if (ret)
971 return ret;
972
973 if (vifs.bss_vif) {
974 ret = iwl_mvm_power_send_cmd(mvm, vifs.bss_vif);
975 if (ret)
976 return ret;
977 }
978
979 if (vifs.p2p_vif) {
980 ret = iwl_mvm_power_send_cmd(mvm, vifs.p2p_vif);
981 if (ret)
982 return ret;
983 }
984
985 if (vifs.bss_vif)
986 return iwl_mvm_power_set_ba(mvm, vifs.bss_vif);
987
988 return 0;
989 }
Kernel DRM miscellaneous fixes and cross-tree changes