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fix a kmap leak in virtio_console
[linux/fpc-iii.git] / drivers / net / wireless / iwlwifi / mvm / power.c
blobd9eab3b7bb9f871a37b818e5a63e1320a12d7189
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 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
22 * USA
23 *
24 * The full GNU General Public License is included in this distribution
25 * in the file called COPYING.
26 *
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30 *
31 * BSD LICENSE
32 *
33 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 *
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
45 * distribution.
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 *
62 *****************************************************************************/
63
64 #include <linux/kernel.h>
65 #include <linux/module.h>
66 #include <linux/slab.h>
67
68 #include <net/mac80211.h>
69
70 #include "iwl-debug.h"
71 #include "mvm.h"
72 #include "iwl-modparams.h"
73 #include "fw-api-power.h"
74
75 #define POWER_KEEP_ALIVE_PERIOD_SEC 25
76
77 int iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm *mvm,
78 struct iwl_beacon_filter_cmd *cmd)
79 {
80 int ret;
81
82 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_BEACON_FILTERING_CMD, CMD_SYNC,
83 sizeof(struct iwl_beacon_filter_cmd), cmd);
84
85 if (!ret) {
86 IWL_DEBUG_POWER(mvm, "ba_enable_beacon_abort is: %d\n",
87 le32_to_cpu(cmd->ba_enable_beacon_abort));
88 IWL_DEBUG_POWER(mvm, "ba_escape_timer is: %d\n",
89 le32_to_cpu(cmd->ba_escape_timer));
90 IWL_DEBUG_POWER(mvm, "bf_debug_flag is: %d\n",
91 le32_to_cpu(cmd->bf_debug_flag));
92 IWL_DEBUG_POWER(mvm, "bf_enable_beacon_filter is: %d\n",
93 le32_to_cpu(cmd->bf_enable_beacon_filter));
94 IWL_DEBUG_POWER(mvm, "bf_energy_delta is: %d\n",
95 le32_to_cpu(cmd->bf_energy_delta));
96 IWL_DEBUG_POWER(mvm, "bf_escape_timer is: %d\n",
97 le32_to_cpu(cmd->bf_escape_timer));
98 IWL_DEBUG_POWER(mvm, "bf_roaming_energy_delta is: %d\n",
99 le32_to_cpu(cmd->bf_roaming_energy_delta));
100 IWL_DEBUG_POWER(mvm, "bf_roaming_state is: %d\n",
101 le32_to_cpu(cmd->bf_roaming_state));
102 IWL_DEBUG_POWER(mvm, "bf_temp_threshold is: %d\n",
103 le32_to_cpu(cmd->bf_temp_threshold));
104 IWL_DEBUG_POWER(mvm, "bf_temp_fast_filter is: %d\n",
105 le32_to_cpu(cmd->bf_temp_fast_filter));
106 IWL_DEBUG_POWER(mvm, "bf_temp_slow_filter is: %d\n",
107 le32_to_cpu(cmd->bf_temp_slow_filter));
108 }
109 return ret;
110 }
111
112 static
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
129 int iwl_mvm_update_beacon_abort(struct iwl_mvm *mvm,
130 struct ieee80211_vif *vif, bool enable)
131 {
132 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
133 struct iwl_beacon_filter_cmd cmd = {
134 IWL_BF_CMD_CONFIG_DEFAULTS,
135 .bf_enable_beacon_filter = cpu_to_le32(1),
136 .ba_enable_beacon_abort = cpu_to_le32(enable),
137 };
138
139 if (!mvmvif->bf_data.bf_enabled)
140 return 0;
141
142 if (mvm->cur_ucode == IWL_UCODE_WOWLAN)
143 cmd.ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER_D3);
144
145 mvmvif->bf_data.ba_enabled = enable;
146 iwl_mvm_beacon_filter_set_cqm_params(mvm, vif, &cmd);
147 iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
148 return iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
149 }
150
151 static void iwl_mvm_power_log(struct iwl_mvm *mvm,
152 struct iwl_mac_power_cmd *cmd)
153 {
154 IWL_DEBUG_POWER(mvm,
155 "Sending power table command on mac id 0x%X for power level %d, flags = 0x%X\n",
156 cmd->id_and_color, iwlmvm_mod_params.power_scheme,
157 le16_to_cpu(cmd->flags));
158 IWL_DEBUG_POWER(mvm, "Keep alive = %u sec\n",
159 le16_to_cpu(cmd->keep_alive_seconds));
160
161 if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK))) {
162 IWL_DEBUG_POWER(mvm, "Disable power management\n");
163 return;
164 }
165
166 IWL_DEBUG_POWER(mvm, "Rx timeout = %u usec\n",
167 le32_to_cpu(cmd->rx_data_timeout));
168 IWL_DEBUG_POWER(mvm, "Tx timeout = %u usec\n",
169 le32_to_cpu(cmd->tx_data_timeout));
170 if (cmd->flags & cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK))
171 IWL_DEBUG_POWER(mvm, "DTIM periods to skip = %u\n",
172 cmd->skip_dtim_periods);
173 if (cmd->flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
174 IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n",
175 cmd->lprx_rssi_threshold);
176 if (cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)) {
177 IWL_DEBUG_POWER(mvm, "uAPSD enabled\n");
178 IWL_DEBUG_POWER(mvm, "Rx timeout (uAPSD) = %u usec\n",
179 le32_to_cpu(cmd->rx_data_timeout_uapsd));
180 IWL_DEBUG_POWER(mvm, "Tx timeout (uAPSD) = %u usec\n",
181 le32_to_cpu(cmd->tx_data_timeout_uapsd));
182 IWL_DEBUG_POWER(mvm, "QNDP TID = %d\n", cmd->qndp_tid);
183 IWL_DEBUG_POWER(mvm, "ACs flags = 0x%x\n", cmd->uapsd_ac_flags);
184 IWL_DEBUG_POWER(mvm, "Max SP = %d\n", cmd->uapsd_max_sp);
185 }
186 }
187
188 static void iwl_mvm_power_configure_uapsd(struct iwl_mvm *mvm,
189 struct ieee80211_vif *vif,
190 struct iwl_mac_power_cmd *cmd)
191 {
192 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
193 enum ieee80211_ac_numbers ac;
194 bool tid_found = false;
195
196 for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_BK; ac++) {
197 if (!mvmvif->queue_params[ac].uapsd)
198 continue;
199
200 if (mvm->cur_ucode != IWL_UCODE_WOWLAN)
201 cmd->flags |=
202 cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
203
204 cmd->uapsd_ac_flags |= BIT(ac);
205
206 /* QNDP TID - the highest TID with no admission control */
207 if (!tid_found && !mvmvif->queue_params[ac].acm) {
208 tid_found = true;
209 switch (ac) {
210 case IEEE80211_AC_VO:
211 cmd->qndp_tid = 6;
212 break;
213 case IEEE80211_AC_VI:
214 cmd->qndp_tid = 5;
215 break;
216 case IEEE80211_AC_BE:
217 cmd->qndp_tid = 0;
218 break;
219 case IEEE80211_AC_BK:
220 cmd->qndp_tid = 1;
221 break;
222 }
223 }
224 }
225
226 if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)))
227 return;
228
229 cmd->flags |= cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK);
230
231 if (cmd->uapsd_ac_flags == (BIT(IEEE80211_AC_VO) |
232 BIT(IEEE80211_AC_VI) |
233 BIT(IEEE80211_AC_BE) |
234 BIT(IEEE80211_AC_BK))) {
235 cmd->flags |= cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
236 cmd->snooze_interval = cpu_to_le16(IWL_MVM_PS_SNOOZE_INTERVAL);
237 cmd->snooze_window = (mvm->cur_ucode == IWL_UCODE_WOWLAN) ?
238 cpu_to_le16(IWL_MVM_WOWLAN_PS_SNOOZE_WINDOW) :
239 cpu_to_le16(IWL_MVM_PS_SNOOZE_WINDOW);
240 }
241
242 cmd->uapsd_max_sp = IWL_UAPSD_MAX_SP;
243
244 if (mvm->cur_ucode == IWL_UCODE_WOWLAN || cmd->flags &
245 cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
246 cmd->rx_data_timeout_uapsd =
247 cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
248 cmd->tx_data_timeout_uapsd =
249 cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
250 } else {
251 cmd->rx_data_timeout_uapsd =
252 cpu_to_le32(IWL_MVM_UAPSD_RX_DATA_TIMEOUT);
253 cmd->tx_data_timeout_uapsd =
254 cpu_to_le32(IWL_MVM_UAPSD_TX_DATA_TIMEOUT);
255 }
256
257 if (cmd->flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
258 cmd->heavy_tx_thld_packets =
259 IWL_MVM_PS_SNOOZE_HEAVY_TX_THLD_PACKETS;
260 cmd->heavy_rx_thld_packets =
261 IWL_MVM_PS_SNOOZE_HEAVY_RX_THLD_PACKETS;
262 } else {
263 cmd->heavy_tx_thld_packets =
264 IWL_MVM_PS_HEAVY_TX_THLD_PACKETS;
265 cmd->heavy_rx_thld_packets =
266 IWL_MVM_PS_HEAVY_RX_THLD_PACKETS;
267 }
268 cmd->heavy_tx_thld_percentage =
269 IWL_MVM_PS_HEAVY_TX_THLD_PERCENT;
270 cmd->heavy_rx_thld_percentage =
271 IWL_MVM_PS_HEAVY_RX_THLD_PERCENT;
272 }
273
274 static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm,
275 struct ieee80211_vif *vif,
276 struct iwl_mac_power_cmd *cmd)
277 {
278 struct ieee80211_hw *hw = mvm->hw;
279 struct ieee80211_chanctx_conf *chanctx_conf;
280 struct ieee80211_channel *chan;
281 int dtimper, dtimper_msec;
282 int keep_alive;
283 bool radar_detect = false;
284 struct iwl_mvm_vif *mvmvif __maybe_unused =
285 iwl_mvm_vif_from_mac80211(vif);
286 bool allow_uapsd = true;
287
288 cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
289 mvmvif->color));
290 dtimper = hw->conf.ps_dtim_period ?: 1;
291
292 /*
293 * Regardless of power management state the driver must set
294 * keep alive period. FW will use it for sending keep alive NDPs
295 * immediately after association. Check that keep alive period
296 * is at least 3 * DTIM
297 */
298 dtimper_msec = dtimper * vif->bss_conf.beacon_int;
299 keep_alive = max_t(int, 3 * dtimper_msec,
300 MSEC_PER_SEC * POWER_KEEP_ALIVE_PERIOD_SEC);
301 keep_alive = DIV_ROUND_UP(keep_alive, MSEC_PER_SEC);
302 cmd->keep_alive_seconds = cpu_to_le16(keep_alive);
303
304 if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM ||
305 mvm->ps_prevented)
306 return;
307
308 cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
309
310 #ifdef CONFIG_IWLWIFI_DEBUGFS
311 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_DISABLE_POWER_OFF &&
312 mvmvif->dbgfs_pm.disable_power_off)
313 cmd->flags &= cpu_to_le16(~POWER_FLAGS_POWER_SAVE_ENA_MSK);
314 #endif
315 if (!vif->bss_conf.ps || mvmvif->pm_prevented)
316 return;
317
318 cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK);
319
320 if (vif->bss_conf.beacon_rate &&
321 (vif->bss_conf.beacon_rate->bitrate == 10 ||
322 vif->bss_conf.beacon_rate->bitrate == 60)) {
323 cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
324 cmd->lprx_rssi_threshold = POWER_LPRX_RSSI_THRESHOLD;
325 }
326
327 /* Check if radar detection is required on current channel */
328 rcu_read_lock();
329 chanctx_conf = rcu_dereference(vif->chanctx_conf);
330 WARN_ON(!chanctx_conf);
331 if (chanctx_conf) {
332 chan = chanctx_conf->def.chan;
333 radar_detect = chan->flags & IEEE80211_CHAN_RADAR;
334 }
335 rcu_read_unlock();
336
337 /* Check skip over DTIM conditions */
338 if (!radar_detect && (dtimper <= 10) &&
339 (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP ||
340 mvm->cur_ucode == IWL_UCODE_WOWLAN)) {
341 cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
342 cmd->skip_dtim_periods = 3;
343 }
344
345 if (mvm->cur_ucode != IWL_UCODE_WOWLAN) {
346 cmd->rx_data_timeout =
347 cpu_to_le32(IWL_MVM_DEFAULT_PS_RX_DATA_TIMEOUT);
348 cmd->tx_data_timeout =
349 cpu_to_le32(IWL_MVM_DEFAULT_PS_TX_DATA_TIMEOUT);
350 } else {
351 cmd->rx_data_timeout =
352 cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
353 cmd->tx_data_timeout =
354 cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
355 }
356
357 if (!memcmp(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid,
358 ETH_ALEN))
359 allow_uapsd = false;
360
361 if (vif->p2p &&
362 !(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PS_UAPSD))
363 allow_uapsd = false;
364 /*
365 * Avoid using uAPSD if P2P client is associated to GO that uses
366 * opportunistic power save. This is due to current FW limitation.
367 */
368 if (vif->p2p &&
369 vif->bss_conf.p2p_noa_attr.oppps_ctwindow &
370 IEEE80211_P2P_OPPPS_ENABLE_BIT)
371 allow_uapsd = false;
372
373 if (allow_uapsd)
374 iwl_mvm_power_configure_uapsd(mvm, vif, cmd);
375
376 #ifdef CONFIG_IWLWIFI_DEBUGFS
377 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_KEEP_ALIVE)
378 cmd->keep_alive_seconds =
379 cpu_to_le16(mvmvif->dbgfs_pm.keep_alive_seconds);
380 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_OVER_DTIM) {
381 if (mvmvif->dbgfs_pm.skip_over_dtim)
382 cmd->flags |=
383 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
384 else
385 cmd->flags &=
386 cpu_to_le16(~POWER_FLAGS_SKIP_OVER_DTIM_MSK);
387 }
388 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_RX_DATA_TIMEOUT)
389 cmd->rx_data_timeout =
390 cpu_to_le32(mvmvif->dbgfs_pm.rx_data_timeout);
391 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_TX_DATA_TIMEOUT)
392 cmd->tx_data_timeout =
393 cpu_to_le32(mvmvif->dbgfs_pm.tx_data_timeout);
394 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS)
395 cmd->skip_dtim_periods = mvmvif->dbgfs_pm.skip_dtim_periods;
396 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_ENA) {
397 if (mvmvif->dbgfs_pm.lprx_ena)
398 cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
399 else
400 cmd->flags &= cpu_to_le16(~POWER_FLAGS_LPRX_ENA_MSK);
401 }
402 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD)
403 cmd->lprx_rssi_threshold = mvmvif->dbgfs_pm.lprx_rssi_threshold;
404 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SNOOZE_ENABLE) {
405 if (mvmvif->dbgfs_pm.snooze_ena)
406 cmd->flags |=
407 cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
408 else
409 cmd->flags &=
410 cpu_to_le16(~POWER_FLAGS_SNOOZE_ENA_MSK);
411 }
412 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_UAPSD_MISBEHAVING) {
413 u16 flag = POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK;
414 if (mvmvif->dbgfs_pm.uapsd_misbehaving)
415 cmd->flags |= cpu_to_le16(flag);
416 else
417 cmd->flags &= cpu_to_le16(flag);
418 }
419 #endif /* CONFIG_IWLWIFI_DEBUGFS */
420 }
421
422 static int iwl_mvm_power_mac_update_mode(struct iwl_mvm *mvm,
423 struct ieee80211_vif *vif)
424 {
425 int ret;
426 bool ba_enable;
427 struct iwl_mac_power_cmd cmd = {};
428
429 if (vif->type != NL80211_IFTYPE_STATION)
430 return 0;
431
432 if (vif->p2p &&
433 !(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PS))
434 return 0;
435
436 iwl_mvm_power_build_cmd(mvm, vif, &cmd);
437 iwl_mvm_power_log(mvm, &cmd);
438
439 ret = iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, CMD_SYNC,
440 sizeof(cmd), &cmd);
441 if (ret)
442 return ret;
443
444 ba_enable = !!(cmd.flags &
445 cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK));
446
447 return iwl_mvm_update_beacon_abort(mvm, vif, ba_enable);
448 }
449
450 static int iwl_mvm_power_mac_disable(struct iwl_mvm *mvm,
451 struct ieee80211_vif *vif)
452 {
453 struct iwl_mac_power_cmd cmd = {};
454 struct iwl_mvm_vif *mvmvif __maybe_unused =
455 iwl_mvm_vif_from_mac80211(vif);
456
457 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
458 return 0;
459
460 cmd.id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
461 mvmvif->color));
462
463 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
464 cmd.flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
465
466 #ifdef CONFIG_IWLWIFI_DEBUGFS
467 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_DISABLE_POWER_OFF &&
468 mvmvif->dbgfs_pm.disable_power_off)
469 cmd.flags &= cpu_to_le16(~POWER_FLAGS_POWER_SAVE_ENA_MSK);
470 #endif
471 iwl_mvm_power_log(mvm, &cmd);
472
473 return iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, CMD_ASYNC,
474 sizeof(cmd), &cmd);
475 }
476
477 static int _iwl_mvm_power_update_device(struct iwl_mvm *mvm, bool force_disable)
478 {
479 struct iwl_device_power_cmd cmd = {
480 .flags = cpu_to_le16(DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK),
481 };
482
483 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD))
484 return 0;
485
486 if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM ||
487 force_disable)
488 cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_CAM_MSK);
489
490 #ifdef CONFIG_IWLWIFI_DEBUGFS
491 if ((mvm->cur_ucode == IWL_UCODE_WOWLAN) ? mvm->disable_power_off_d3 :
492 mvm->disable_power_off)
493 cmd.flags &=
494 cpu_to_le16(~DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK);
495 #endif
496 IWL_DEBUG_POWER(mvm,
497 "Sending device power command with flags = 0x%X\n",
498 cmd.flags);
499
500 return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, CMD_SYNC, sizeof(cmd),
501 &cmd);
502 }
503
504 static int iwl_mvm_power_update_device(struct iwl_mvm *mvm)
505 {
506 return _iwl_mvm_power_update_device(mvm, false);
507 }
508
509 void iwl_mvm_power_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
510 {
511 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
512
513 if (memcmp(vif->bss_conf.bssid, mvmvif->uapsd_misbehaving_bssid,
514 ETH_ALEN))
515 memset(mvmvif->uapsd_misbehaving_bssid, 0, ETH_ALEN);
516 }
517
518 static void iwl_mvm_power_uapsd_misbehav_ap_iterator(void *_data, u8 *mac,
519 struct ieee80211_vif *vif)
520 {
521 u8 *ap_sta_id = _data;
522 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
523
524 /* The ap_sta_id is not expected to change during current association
525 * so no explicit protection is needed
526 */
527 if (mvmvif->ap_sta_id == *ap_sta_id)
528 memcpy(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid,
529 ETH_ALEN);
530 }
531
532 int iwl_mvm_power_uapsd_misbehaving_ap_notif(struct iwl_mvm *mvm,
533 struct iwl_rx_cmd_buffer *rxb,
534 struct iwl_device_cmd *cmd)
535 {
536 struct iwl_rx_packet *pkt = rxb_addr(rxb);
537 struct iwl_uapsd_misbehaving_ap_notif *notif = (void *)pkt->data;
538 u8 ap_sta_id = le32_to_cpu(notif->sta_id);
539
540 ieee80211_iterate_active_interfaces_atomic(
541 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
542 iwl_mvm_power_uapsd_misbehav_ap_iterator, &ap_sta_id);
543
544 return 0;
545 }
546
547 static void iwl_mvm_power_binding_iterator(void *_data, u8 *mac,
548 struct ieee80211_vif *vif)
549 {
550 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
551 struct iwl_mvm *mvm = _data;
552 int ret;
553
554 mvmvif->pm_prevented = (mvm->bound_vif_cnt <= 1) ? false : true;
555
556 ret = iwl_mvm_power_mac_update_mode(mvm, vif);
557 WARN_ONCE(ret, "Failed to update power parameters on a specific vif\n");
558 }
559
560 static void _iwl_mvm_power_update_binding(struct iwl_mvm *mvm,
561 struct ieee80211_vif *vif,
562 bool assign)
563 {
564 if (vif->type == NL80211_IFTYPE_MONITOR) {
565 int ret = _iwl_mvm_power_update_device(mvm, assign);
566 mvm->ps_prevented = assign;
567 WARN_ONCE(ret, "Failed to update power device state\n");
568 }
569
570 ieee80211_iterate_active_interfaces(mvm->hw,
571 IEEE80211_IFACE_ITER_NORMAL,
572 iwl_mvm_power_binding_iterator,
573 mvm);
574 }
575
576 #ifdef CONFIG_IWLWIFI_DEBUGFS
577 static int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm,
578 struct ieee80211_vif *vif, char *buf,
579 int bufsz)
580 {
581 struct iwl_mac_power_cmd cmd = {};
582 int pos = 0;
583
584 iwl_mvm_power_build_cmd(mvm, vif, &cmd);
585
586 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD))
587 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off = %d\n",
588 (cmd.flags &
589 cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK)) ?
590 0 : 1);
591 pos += scnprintf(buf+pos, bufsz-pos, "power_scheme = %d\n",
592 iwlmvm_mod_params.power_scheme);
593 pos += scnprintf(buf+pos, bufsz-pos, "flags = 0x%x\n",
594 le16_to_cpu(cmd.flags));
595 pos += scnprintf(buf+pos, bufsz-pos, "keep_alive = %d\n",
596 le16_to_cpu(cmd.keep_alive_seconds));
597
598 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK)))
599 return pos;
600
601 pos += scnprintf(buf+pos, bufsz-pos, "skip_over_dtim = %d\n",
602 (cmd.flags &
603 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK)) ? 1 : 0);
604 pos += scnprintf(buf+pos, bufsz-pos, "skip_dtim_periods = %d\n",
605 cmd.skip_dtim_periods);
606 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) {
607 pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout = %d\n",
608 le32_to_cpu(cmd.rx_data_timeout));
609 pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout = %d\n",
610 le32_to_cpu(cmd.tx_data_timeout));
611 }
612 if (cmd.flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
613 pos += scnprintf(buf+pos, bufsz-pos,
614 "lprx_rssi_threshold = %d\n",
615 cmd.lprx_rssi_threshold);
616
617 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)))
618 return pos;
619
620 pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout_uapsd = %d\n",
621 le32_to_cpu(cmd.rx_data_timeout_uapsd));
622 pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout_uapsd = %d\n",
623 le32_to_cpu(cmd.tx_data_timeout_uapsd));
624 pos += scnprintf(buf+pos, bufsz-pos, "qndp_tid = %d\n", cmd.qndp_tid);
625 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_ac_flags = 0x%x\n",
626 cmd.uapsd_ac_flags);
627 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_max_sp = %d\n",
628 cmd.uapsd_max_sp);
629 pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_packets = %d\n",
630 cmd.heavy_tx_thld_packets);
631 pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_packets = %d\n",
632 cmd.heavy_rx_thld_packets);
633 pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_percentage = %d\n",
634 cmd.heavy_tx_thld_percentage);
635 pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_percentage = %d\n",
636 cmd.heavy_rx_thld_percentage);
637 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_misbehaving_enable = %d\n",
638 (cmd.flags &
639 cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK)) ?
640 1 : 0);
641
642 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)))
643 return pos;
644
645 pos += scnprintf(buf+pos, bufsz-pos, "snooze_interval = %d\n",
646 cmd.snooze_interval);
647 pos += scnprintf(buf+pos, bufsz-pos, "snooze_window = %d\n",
648 cmd.snooze_window);
649
650 return pos;
651 }
652
653 void
654 iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
655 struct iwl_beacon_filter_cmd *cmd)
656 {
657 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
658 struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
659
660 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ENERGY_DELTA)
661 cmd->bf_energy_delta = cpu_to_le32(dbgfs_bf->bf_energy_delta);
662 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA)
663 cmd->bf_roaming_energy_delta =
664 cpu_to_le32(dbgfs_bf->bf_roaming_energy_delta);
665 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_STATE)
666 cmd->bf_roaming_state = cpu_to_le32(dbgfs_bf->bf_roaming_state);
667 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_THRESHOLD)
668 cmd->bf_temp_threshold =
669 cpu_to_le32(dbgfs_bf->bf_temp_threshold);
670 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_FAST_FILTER)
671 cmd->bf_temp_fast_filter =
672 cpu_to_le32(dbgfs_bf->bf_temp_fast_filter);
673 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_SLOW_FILTER)
674 cmd->bf_temp_slow_filter =
675 cpu_to_le32(dbgfs_bf->bf_temp_slow_filter);
676 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_DEBUG_FLAG)
677 cmd->bf_debug_flag = cpu_to_le32(dbgfs_bf->bf_debug_flag);
678 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ESCAPE_TIMER)
679 cmd->bf_escape_timer = cpu_to_le32(dbgfs_bf->bf_escape_timer);
680 if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ESCAPE_TIMER)
681 cmd->ba_escape_timer = cpu_to_le32(dbgfs_bf->ba_escape_timer);
682 if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT)
683 cmd->ba_enable_beacon_abort =
684 cpu_to_le32(dbgfs_bf->ba_enable_beacon_abort);
685 }
686 #endif
687
688 int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
689 struct ieee80211_vif *vif)
690 {
691 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
692 struct iwl_beacon_filter_cmd cmd = {
693 IWL_BF_CMD_CONFIG_DEFAULTS,
694 .bf_enable_beacon_filter = cpu_to_le32(1),
695 };
696 int ret;
697
698 if (mvmvif != mvm->bf_allowed_vif ||
699 vif->type != NL80211_IFTYPE_STATION || vif->p2p)
700 return 0;
701
702 iwl_mvm_beacon_filter_set_cqm_params(mvm, vif, &cmd);
703 iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
704 ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
705
706 if (!ret)
707 mvmvif->bf_data.bf_enabled = true;
708
709 return ret;
710 }
711
712 int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
713 struct ieee80211_vif *vif)
714 {
715 struct iwl_beacon_filter_cmd cmd = {};
716 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
717 int ret;
718
719 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BF_UPDATED) ||
720 vif->type != NL80211_IFTYPE_STATION || vif->p2p)
721 return 0;
722
723 ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
724
725 if (!ret)
726 mvmvif->bf_data.bf_enabled = false;
727
728 return ret;
729 }
730
731 int iwl_mvm_update_beacon_filter(struct iwl_mvm *mvm,
732 struct ieee80211_vif *vif)
733 {
734 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
735
736 if (!mvmvif->bf_data.bf_enabled)
737 return 0;
738
739 return iwl_mvm_enable_beacon_filter(mvm, vif);
740 }
741
742 const struct iwl_mvm_power_ops pm_mac_ops = {
743 .power_update_mode = iwl_mvm_power_mac_update_mode,
744 .power_update_device_mode = iwl_mvm_power_update_device,
745 .power_disable = iwl_mvm_power_mac_disable,
746 .power_update_binding = _iwl_mvm_power_update_binding,
747 #ifdef CONFIG_IWLWIFI_DEBUGFS
748 .power_dbgfs_read = iwl_mvm_power_mac_dbgfs_read,
749 #endif
750 };
Linux with added FPC-III support