1 /******************************************************************************
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.
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
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.
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.
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,
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
36 * All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
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
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.
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.
64 *****************************************************************************/
66 #include <linux/kernel.h>
67 #include <linux/module.h>
68 #include <linux/slab.h>
69 #include <linux/etherdevice.h>
71 #include <net/mac80211.h>
73 #include "iwl-debug.h"
75 #include "iwl-modparams.h"
76 #include "fw-api-power.h"
78 #define POWER_KEEP_ALIVE_PERIOD_SEC 25
81 int iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm
*mvm
,
82 struct iwl_beacon_filter_cmd
*cmd
,
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
));
108 return iwl_mvm_send_cmd_pdu(mvm
, REPLY_BEACON_FILTERING_CMD
, flags
,
109 sizeof(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
)
117 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
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
);
126 cmd
->ba_enable_beacon_abort
= cpu_to_le32(mvmvif
->bf_data
.ba_enabled
);
129 static void iwl_mvm_power_log(struct iwl_mvm
*mvm
,
130 struct iwl_mac_power_cmd
*cmd
)
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
));
139 if (!(cmd
->flags
& cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK
))) {
140 IWL_DEBUG_POWER(mvm
, "Disable power management\n");
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
);
166 static void iwl_mvm_power_configure_uapsd(struct iwl_mvm
*mvm
,
167 struct ieee80211_vif
*vif
,
168 struct iwl_mac_power_cmd
*cmd
)
170 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
171 enum ieee80211_ac_numbers ac
;
172 bool tid_found
= false;
174 for (ac
= IEEE80211_AC_VO
; ac
<= IEEE80211_AC_BK
; ac
++) {
175 if (!mvmvif
->queue_params
[ac
].uapsd
)
178 if (mvm
->cur_ucode
!= IWL_UCODE_WOWLAN
)
180 cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK
);
182 cmd
->uapsd_ac_flags
|= BIT(ac
);
184 /* QNDP TID - the highest TID with no admission control */
185 if (!tid_found
&& !mvmvif
->queue_params
[ac
].acm
) {
188 case IEEE80211_AC_VO
:
191 case IEEE80211_AC_VI
:
194 case IEEE80211_AC_BE
:
197 case IEEE80211_AC_BK
:
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
)
209 cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK
);
214 cmd
->flags
|= cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK
);
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
);
227 cmd
->uapsd_max_sp
= IWL_UAPSD_MAX_SP
;
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
);
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
);
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
;
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
;
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
;
259 static bool iwl_mvm_power_allow_uapsd(struct iwl_mvm
*mvm
,
260 struct ieee80211_vif
*vif
)
262 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
264 if (!memcmp(mvmvif
->uapsd_misbehaving_bssid
, vif
->bss_conf
.bssid
,
269 !(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_P2P_PS_UAPSD
))
272 * Avoid using uAPSD if P2P client is associated to GO that uses
273 * opportunistic power save. This is due to current FW limitation.
276 (vif
->bss_conf
.p2p_noa_attr
.oppps_ctwindow
&
277 IEEE80211_P2P_OPPPS_ENABLE_BIT
))
281 * Avoid using uAPSD if client is in DCM -
282 * low latency issue in Miracast
284 if (iwl_mvm_phy_ctx_count(mvm
) >= 2)
290 static int iwl_mvm_power_get_skip_over_dtim(int dtimper
, int bi
)
293 int dtim_interval
= dtimper
* bi
;
295 if (WARN_ON(!dtim_interval
))
303 } else if (dtimper
< 10) {
308 return max(1, (numerator
/ dtim_interval
));
311 static bool iwl_mvm_power_is_radar(struct ieee80211_vif
*vif
)
313 struct ieee80211_chanctx_conf
*chanctx_conf
;
314 struct ieee80211_channel
*chan
;
315 bool radar_detect
= false;
318 chanctx_conf
= rcu_dereference(vif
->chanctx_conf
);
319 WARN_ON(!chanctx_conf
);
321 chan
= chanctx_conf
->def
.chan
;
322 radar_detect
= chan
->flags
& IEEE80211_CHAN_RADAR
;
329 static void iwl_mvm_power_build_cmd(struct iwl_mvm
*mvm
,
330 struct ieee80211_vif
*vif
,
331 struct iwl_mac_power_cmd
*cmd
)
335 bool radar_detect
= false;
336 struct iwl_mvm_vif
*mvmvif __maybe_unused
=
337 iwl_mvm_vif_from_mac80211(vif
);
339 cmd
->id_and_color
= cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
341 dtimper
= vif
->bss_conf
.dtim_period
;
342 bi
= vif
->bss_conf
.beacon_int
;
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
350 keep_alive
= DIV_ROUND_UP(ieee80211_tu_to_usec(3 * dtimper
* bi
),
352 keep_alive
= max(keep_alive
, POWER_KEEP_ALIVE_PERIOD_SEC
);
353 cmd
->keep_alive_seconds
= cpu_to_le16(keep_alive
);
355 if (mvm
->ps_disabled
)
358 cmd
->flags
|= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK
);
360 if (!vif
->bss_conf
.ps
|| iwl_mvm_vif_low_latency(mvmvif
) ||
364 cmd
->flags
|= cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK
);
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
;
373 /* Check if radar detection is required on current channel */
374 radar_detect
= iwl_mvm_power_is_radar(vif
);
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
)
384 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK
);
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
);
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
);
399 if (iwl_mvm_power_allow_uapsd(mvm
, vif
))
400 iwl_mvm_power_configure_uapsd(mvm
, vif
, cmd
);
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
)
409 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK
);
412 cpu_to_le16(~POWER_FLAGS_SKIP_OVER_DTIM_MSK
);
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
);
426 cmd
->flags
&= cpu_to_le16(~POWER_FLAGS_LPRX_ENA_MSK
);
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
)
433 cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK
);
436 cpu_to_le16(~POWER_FLAGS_SNOOZE_ENA_MSK
);
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
);
443 cmd
->flags
&= cpu_to_le16(flag
);
445 #endif /* CONFIG_IWLWIFI_DEBUGFS */
448 static int iwl_mvm_power_send_cmd(struct iwl_mvm
*mvm
,
449 struct ieee80211_vif
*vif
)
451 struct iwl_mac_power_cmd cmd
= {};
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
));
459 return iwl_mvm_send_cmd_pdu(mvm
, MAC_PM_POWER_TABLE
, 0,
463 int iwl_mvm_power_update_device(struct iwl_mvm
*mvm
)
465 struct iwl_device_power_cmd cmd
= {
466 .flags
= cpu_to_le16(DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK
),
469 if (iwlmvm_mod_params
.power_scheme
== IWL_POWER_SCHEME_CAM
)
470 mvm
->ps_disabled
= true;
472 if (mvm
->ps_disabled
)
473 cmd
.flags
|= cpu_to_le16(DEVICE_POWER_FLAGS_CAM_MSK
);
475 #ifdef CONFIG_IWLWIFI_DEBUGFS
476 if ((mvm
->cur_ucode
== IWL_UCODE_WOWLAN
) ? mvm
->disable_power_off_d3
:
477 mvm
->disable_power_off
)
479 cpu_to_le16(~DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK
);
482 "Sending device power command with flags = 0x%X\n",
485 return iwl_mvm_send_cmd_pdu(mvm
, POWER_TABLE_CMD
, 0, sizeof(cmd
),
489 void iwl_mvm_power_vif_assoc(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
)
491 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
493 if (memcmp(vif
->bss_conf
.bssid
, mvmvif
->uapsd_misbehaving_bssid
,
495 eth_zero_addr(mvmvif
->uapsd_misbehaving_bssid
);
498 static void iwl_mvm_power_uapsd_misbehav_ap_iterator(void *_data
, u8
*mac
,
499 struct ieee80211_vif
*vif
)
501 u8
*ap_sta_id
= _data
;
502 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
504 /* The ap_sta_id is not expected to change during current association
505 * so no explicit protection is needed
507 if (mvmvif
->ap_sta_id
== *ap_sta_id
)
508 memcpy(mvmvif
->uapsd_misbehaving_bssid
, vif
->bss_conf
.bssid
,
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
)
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
);
520 ieee80211_iterate_active_interfaces_atomic(
521 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
522 iwl_mvm_power_uapsd_misbehav_ap_iterator
, &ap_sta_id
);
527 struct iwl_power_vifs
{
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
;
540 static void iwl_mvm_power_disable_pm_iterator(void *_data
, u8
* mac
,
541 struct ieee80211_vif
*vif
)
543 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
545 mvmvif
->pm_enabled
= false;
548 static void iwl_mvm_power_ps_disabled_iterator(void *_data
, u8
* mac
,
549 struct ieee80211_vif
*vif
)
551 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
552 bool *disable_ps
= _data
;
554 if (mvmvif
->phy_ctxt
)
555 if (mvmvif
->phy_ctxt
->id
< MAX_PHYS
)
556 *disable_ps
|= mvmvif
->ps_disabled
;
559 static void iwl_mvm_power_get_vifs_iterator(void *_data
, u8
*mac
,
560 struct ieee80211_vif
*vif
)
562 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
563 struct iwl_power_vifs
*power_iterator
= _data
;
565 switch (ieee80211_vif_type_p2p(vif
)) {
566 case NL80211_IFTYPE_P2P_DEVICE
:
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;
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;
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;
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;
605 if (mvmvif
->bf_data
.bf_enabled
&&
606 !WARN_ON(power_iterator
->bf_vif
))
607 power_iterator
->bf_vif
= vif
;
616 static void iwl_mvm_power_set_pm(struct iwl_mvm
*mvm
,
617 struct iwl_power_vifs
*vifs
)
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;
625 lockdep_assert_held(&mvm
->mutex
);
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
,
634 bss_mvmvif
= iwl_mvm_vif_from_mac80211(vifs
->bss_vif
);
637 p2p_mvmvif
= iwl_mvm_vif_from_mac80211(vifs
->p2p_vif
);
640 ap_mvmvif
= iwl_mvm_vif_from_mac80211(vifs
->ap_vif
);
642 /* don't allow PM if any TDLS stations exist */
643 if (iwl_mvm_tdls_sta_count(mvm
, NULL
))
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;
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;
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
);
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;
678 * There is only one channel in the system and there are only
679 * bss and p2p clients that share it
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;
690 #ifdef CONFIG_IWLWIFI_DEBUGFS
691 int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm
*mvm
,
692 struct ieee80211_vif
*vif
, char *buf
,
695 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
696 struct iwl_mac_power_cmd cmd
= {};
699 mutex_lock(&mvm
->mutex
);
700 memcpy(&cmd
, &mvmvif
->mac_pwr_cmd
, sizeof(cmd
));
701 mutex_unlock(&mvm
->mutex
);
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
));
710 if (!(cmd
.flags
& cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK
)))
713 pos
+= scnprintf(buf
+pos
, bufsz
-pos
, "skip_over_dtim = %d\n",
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
));
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
);
729 if (!(cmd
.flags
& cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK
)))
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",
739 pos
+= scnprintf(buf
+pos
, bufsz
-pos
, "uapsd_max_sp = %d\n",
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",
751 cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK
)) ?
754 if (!(cmd
.flags
& cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK
)))
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",
766 iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif
*vif
,
767 struct iwl_beacon_filter_cmd
*cmd
)
769 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
770 struct iwl_dbgfs_bf
*dbgfs_bf
= &mvmvif
->dbgfs_bf
;
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
);
800 static int _iwl_mvm_enable_beacon_filter(struct iwl_mvm
*mvm
,
801 struct ieee80211_vif
*vif
,
802 struct iwl_beacon_filter_cmd
*cmd
,
806 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
809 if (mvmvif
!= mvm
->bf_allowed_vif
|| !vif
->bss_conf
.dtim_period
||
810 vif
->type
!= NL80211_IFTYPE_STATION
|| vif
->p2p
)
813 iwl_mvm_beacon_filter_set_cqm_params(mvm
, vif
, cmd
);
815 iwl_mvm_beacon_filter_debugfs_parameters(vif
, cmd
);
816 ret
= iwl_mvm_beacon_filter_send_cmd(mvm
, cmd
, cmd_flags
);
818 /* don't change bf_enabled in case of temporary d0i3 configuration */
820 mvmvif
->bf_data
.bf_enabled
= true;
825 int iwl_mvm_enable_beacon_filter(struct iwl_mvm
*mvm
,
826 struct ieee80211_vif
*vif
,
829 struct iwl_beacon_filter_cmd cmd
= {
830 IWL_BF_CMD_CONFIG_DEFAULTS
,
831 .bf_enable_beacon_filter
= cpu_to_le32(1),
834 return _iwl_mvm_enable_beacon_filter(mvm
, vif
, &cmd
, flags
, false);
837 static int iwl_mvm_update_beacon_abort(struct iwl_mvm
*mvm
,
838 struct ieee80211_vif
*vif
,
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),
847 if (!mvmvif
->bf_data
.bf_enabled
)
850 if (mvm
->cur_ucode
== IWL_UCODE_WOWLAN
)
851 cmd
.ba_escape_timer
= cpu_to_le32(IWL_BA_ESCAPE_TIMER_D3
);
853 mvmvif
->bf_data
.ba_enabled
= enable
;
854 return _iwl_mvm_enable_beacon_filter(mvm
, vif
, &cmd
, 0, false);
857 int iwl_mvm_disable_beacon_filter(struct iwl_mvm
*mvm
,
858 struct ieee80211_vif
*vif
,
861 struct iwl_beacon_filter_cmd cmd
= {};
862 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
865 if (vif
->type
!= NL80211_IFTYPE_STATION
|| vif
->p2p
)
868 ret
= iwl_mvm_beacon_filter_send_cmd(mvm
, &cmd
, flags
);
871 mvmvif
->bf_data
.bf_enabled
= false;
876 static int iwl_mvm_power_set_ps(struct iwl_mvm
*mvm
)
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
,
889 /* update device power state if it has changed */
890 if (mvm
->ps_disabled
!= disable_ps
) {
891 bool old_ps_disabled
= mvm
->ps_disabled
;
893 mvm
->ps_disabled
= disable_ps
;
894 ret
= iwl_mvm_power_update_device(mvm
);
896 mvm
->ps_disabled
= old_ps_disabled
;
904 static int iwl_mvm_power_set_ba(struct iwl_mvm
*mvm
,
905 struct iwl_power_vifs
*vifs
)
907 struct iwl_mvm_vif
*mvmvif
;
913 mvmvif
= iwl_mvm_vif_from_mac80211(vifs
->bf_vif
);
915 ba_enable
= !(!mvmvif
->pm_enabled
|| mvm
->ps_disabled
||
916 !vifs
->bf_vif
->bss_conf
.ps
||
917 iwl_mvm_vif_low_latency(mvmvif
));
919 return iwl_mvm_update_beacon_abort(mvm
, vifs
->bf_vif
, ba_enable
);
922 int iwl_mvm_power_update_ps(struct iwl_mvm
*mvm
)
924 struct iwl_power_vifs vifs
= {
929 lockdep_assert_held(&mvm
->mutex
);
932 ieee80211_iterate_active_interfaces_atomic(mvm
->hw
,
933 IEEE80211_IFACE_ITER_NORMAL
,
934 iwl_mvm_power_get_vifs_iterator
, &vifs
);
936 ret
= iwl_mvm_power_set_ps(mvm
);
940 return iwl_mvm_power_set_ba(mvm
, &vifs
);
943 int iwl_mvm_power_update_mac(struct iwl_mvm
*mvm
)
945 struct iwl_power_vifs vifs
= {
950 lockdep_assert_held(&mvm
->mutex
);
953 ieee80211_iterate_active_interfaces_atomic(mvm
->hw
,
954 IEEE80211_IFACE_ITER_NORMAL
,
955 iwl_mvm_power_get_vifs_iterator
, &vifs
);
957 iwl_mvm_power_set_pm(mvm
, &vifs
);
959 ret
= iwl_mvm_power_set_ps(mvm
);
964 ret
= iwl_mvm_power_send_cmd(mvm
, vifs
.bss_vif
);
970 ret
= iwl_mvm_power_send_cmd(mvm
, vifs
.p2p_vif
);
975 return iwl_mvm_power_set_ba(mvm
, &vifs
);
978 int iwl_mvm_update_d0i3_power_mode(struct iwl_mvm
*mvm
,
979 struct ieee80211_vif
*vif
,
980 bool enable
, u32 flags
)
983 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
984 struct iwl_mac_power_cmd cmd
= {};
986 if (vif
->type
!= NL80211_IFTYPE_STATION
|| vif
->p2p
)
989 if (!vif
->bss_conf
.assoc
)
992 iwl_mvm_power_build_cmd(mvm
, vif
, &cmd
);
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
);
999 if (WARN_ON(!dtimper_tu
))
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
);
1011 iwl_mvm_power_log(mvm
, &cmd
);
1012 #ifdef CONFIG_IWLWIFI_DEBUGFS
1013 memcpy(&mvmvif
->mac_pwr_cmd
, &cmd
, sizeof(cmd
));
1015 ret
= iwl_mvm_send_cmd_pdu(mvm
, MAC_PM_POWER_TABLE
, flags
,
1020 /* configure beacon filtering */
1021 if (mvmvif
!= mvm
->bf_allowed_vif
)
1025 struct iwl_beacon_filter_cmd cmd_bf
= {
1026 IWL_BF_CMD_CONFIG_D0I3
,
1027 .bf_enable_beacon_filter
= cpu_to_le32(1),
1029 ret
= _iwl_mvm_enable_beacon_filter(mvm
, vif
, &cmd_bf
,
1032 if (mvmvif
->bf_data
.bf_enabled
)
1033 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, flags
);
1035 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, flags
);