drivers/net/wireless/iwlwifi/mvm/power.c

   1 /******************************************************************************
   2  *
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
   4  * redistributing this file, you may do so under either license.
   5  *
   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
   9  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of version 2 of the GNU General Public License as
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  33  *
  34  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
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  50  *    from this software without specific prior written permission.
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  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,
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  62  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  63  *
  64  *****************************************************************************/
  65
  66 #include <linux/kernel.h>
  67 #include <linux/module.h>
  68 #include <linux/slab.h>
  69 #include <linux/etherdevice.h>
  70
  71 #include <net/mac80211.h>
  72
  73 #include "iwl-debug.h"
  74 #include "mvm.h"
  75 #include "iwl-modparams.h"
  76 #include "fw-api-power.h"
  77
  78 #define POWER_KEEP_ALIVE_PERIOD_SEC    25
  79
  80 static
  81 int iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm *mvm,
  82                                    struct iwl_beacon_filter_cmd *cmd,
  83                                    u32 flags)
  84 {
  85         IWL_DEBUG_POWER(mvm, "ba_enable_beacon_abort is: %d\n",
  86                         le32_to_cpu(cmd->ba_enable_beacon_abort));
  87         IWL_DEBUG_POWER(mvm, "ba_escape_timer is: %d\n",
  88                         le32_to_cpu(cmd->ba_escape_timer));
  89         IWL_DEBUG_POWER(mvm, "bf_debug_flag is: %d\n",
  90                         le32_to_cpu(cmd->bf_debug_flag));
  91         IWL_DEBUG_POWER(mvm, "bf_enable_beacon_filter is: %d\n",
  92                         le32_to_cpu(cmd->bf_enable_beacon_filter));
  93         IWL_DEBUG_POWER(mvm, "bf_energy_delta is: %d\n",
  94                         le32_to_cpu(cmd->bf_energy_delta));
  95         IWL_DEBUG_POWER(mvm, "bf_escape_timer is: %d\n",
  96                         le32_to_cpu(cmd->bf_escape_timer));
  97         IWL_DEBUG_POWER(mvm, "bf_roaming_energy_delta is: %d\n",
  98                         le32_to_cpu(cmd->bf_roaming_energy_delta));
  99         IWL_DEBUG_POWER(mvm, "bf_roaming_state is: %d\n",
 100                         le32_to_cpu(cmd->bf_roaming_state));
 101         IWL_DEBUG_POWER(mvm, "bf_temp_threshold is: %d\n",
 102                         le32_to_cpu(cmd->bf_temp_threshold));
 103         IWL_DEBUG_POWER(mvm, "bf_temp_fast_filter is: %d\n",
 104                         le32_to_cpu(cmd->bf_temp_fast_filter));
 105         IWL_DEBUG_POWER(mvm, "bf_temp_slow_filter is: %d\n",
 106                         le32_to_cpu(cmd->bf_temp_slow_filter));
 107
 108         return iwl_mvm_send_cmd_pdu(mvm, REPLY_BEACON_FILTERING_CMD, flags,
 109                                     sizeof(struct iwl_beacon_filter_cmd), cmd);
 110 }
 111
 112 static
 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                                           bool d0i3)
 117 {
 118         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 119
 120         if (vif->bss_conf.cqm_rssi_thold && !d0i3) {
 121                 cmd->bf_energy_delta =
 122                         cpu_to_le32(vif->bss_conf.cqm_rssi_hyst);
 123                 /* fw uses an absolute value for this */
 124                 cmd->bf_roaming_state =
 125                         cpu_to_le32(-vif->bss_conf.cqm_rssi_thold);
 126         }
 127         cmd->ba_enable_beacon_abort = cpu_to_le32(mvmvif->bf_data.ba_enabled);
 128 }
 129
 130 static void iwl_mvm_power_log(struct iwl_mvm *mvm,
 131                               struct iwl_mac_power_cmd *cmd)
 132 {
 133         IWL_DEBUG_POWER(mvm,
 134                         "Sending power table command on mac id 0x%X for power level %d, flags = 0x%X\n",
 135                         cmd->id_and_color, iwlmvm_mod_params.power_scheme,
 136                         le16_to_cpu(cmd->flags));
 137         IWL_DEBUG_POWER(mvm, "Keep alive = %u sec\n",
 138                         le16_to_cpu(cmd->keep_alive_seconds));
 139
 140         if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK))) {
 141                 IWL_DEBUG_POWER(mvm, "Disable power management\n");
 142                 return;
 143         }
 144
 145         IWL_DEBUG_POWER(mvm, "Rx timeout = %u usec\n",
 146                         le32_to_cpu(cmd->rx_data_timeout));
 147         IWL_DEBUG_POWER(mvm, "Tx timeout = %u usec\n",
 148                         le32_to_cpu(cmd->tx_data_timeout));
 149         if (cmd->flags & cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK))
 150                 IWL_DEBUG_POWER(mvm, "DTIM periods to skip = %u\n",
 151                                 cmd->skip_dtim_periods);
 152         if (cmd->flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
 153                 IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n",
 154                                 cmd->lprx_rssi_threshold);
 155         if (cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)) {
 156                 IWL_DEBUG_POWER(mvm, "uAPSD enabled\n");
 157                 IWL_DEBUG_POWER(mvm, "Rx timeout (uAPSD) = %u usec\n",
 158                                 le32_to_cpu(cmd->rx_data_timeout_uapsd));
 159                 IWL_DEBUG_POWER(mvm, "Tx timeout (uAPSD) = %u usec\n",
 160                                 le32_to_cpu(cmd->tx_data_timeout_uapsd));
 161                 IWL_DEBUG_POWER(mvm, "QNDP TID = %d\n", cmd->qndp_tid);
 162                 IWL_DEBUG_POWER(mvm, "ACs flags = 0x%x\n", cmd->uapsd_ac_flags);
 163                 IWL_DEBUG_POWER(mvm, "Max SP = %d\n", cmd->uapsd_max_sp);
 164         }
 165 }
 166
 167 static void iwl_mvm_power_configure_uapsd(struct iwl_mvm *mvm,
 168                                           struct ieee80211_vif *vif,
 169                                           struct iwl_mac_power_cmd *cmd)
 170 {
 171         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 172         enum ieee80211_ac_numbers ac;
 173         bool tid_found = false;
 174
 175         for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_BK; ac++) {
 176                 if (!mvmvif->queue_params[ac].uapsd)
 177                         continue;
 178
 179                 if (mvm->cur_ucode != IWL_UCODE_WOWLAN)
 180                         cmd->flags |=
 181                                 cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
 182
 183                 cmd->uapsd_ac_flags |= BIT(ac);
 184
 185                 /* QNDP TID - the highest TID with no admission control */
 186                 if (!tid_found && !mvmvif->queue_params[ac].acm) {
 187                         tid_found = true;
 188                         switch (ac) {
 189                         case IEEE80211_AC_VO:
 190                                 cmd->qndp_tid = 6;
 191                                 break;
 192                         case IEEE80211_AC_VI:
 193                                 cmd->qndp_tid = 5;
 194                                 break;
 195                         case IEEE80211_AC_BE:
 196                                 cmd->qndp_tid = 0;
 197                                 break;
 198                         case IEEE80211_AC_BK:
 199                                 cmd->qndp_tid = 1;
 200                                 break;
 201                         }
 202                 }
 203         }
 204
 205         if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) {
 206 #ifdef CONFIG_IWLWIFI_DEBUGFS
 207                 /* set advanced pm flag with no uapsd ACs to enable ps-poll */
 208                 if (mvmvif->dbgfs_pm.use_ps_poll)
 209                         cmd->flags |=
 210                                 cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
 211 #endif
 212                 return;
 213         }
 214
 215         cmd->flags |= cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK);
 216
 217         if (cmd->uapsd_ac_flags == (BIT(IEEE80211_AC_VO) |
 218                                     BIT(IEEE80211_AC_VI) |
 219                                     BIT(IEEE80211_AC_BE) |
 220                                     BIT(IEEE80211_AC_BK))) {
 221                 cmd->flags |= cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
 222                 cmd->snooze_interval = cpu_to_le16(IWL_MVM_PS_SNOOZE_INTERVAL);
 223                 cmd->snooze_window = (mvm->cur_ucode == IWL_UCODE_WOWLAN) ?
 224                         cpu_to_le16(IWL_MVM_WOWLAN_PS_SNOOZE_WINDOW) :
 225                         cpu_to_le16(IWL_MVM_PS_SNOOZE_WINDOW);
 226         }
 227
 228         cmd->uapsd_max_sp = IWL_UAPSD_MAX_SP;
 229
 230         if (mvm->cur_ucode == IWL_UCODE_WOWLAN || cmd->flags &
 231             cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
 232                 cmd->rx_data_timeout_uapsd =
 233                         cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
 234                 cmd->tx_data_timeout_uapsd =
 235                         cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
 236         } else {
 237                 cmd->rx_data_timeout_uapsd =
 238                         cpu_to_le32(IWL_MVM_UAPSD_RX_DATA_TIMEOUT);
 239                 cmd->tx_data_timeout_uapsd =
 240                         cpu_to_le32(IWL_MVM_UAPSD_TX_DATA_TIMEOUT);
 241         }
 242
 243         if (cmd->flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
 244                 cmd->heavy_tx_thld_packets =
 245                         IWL_MVM_PS_SNOOZE_HEAVY_TX_THLD_PACKETS;
 246                 cmd->heavy_rx_thld_packets =
 247                         IWL_MVM_PS_SNOOZE_HEAVY_RX_THLD_PACKETS;
 248         } else {
 249                 cmd->heavy_tx_thld_packets =
 250                         IWL_MVM_PS_HEAVY_TX_THLD_PACKETS;
 251                 cmd->heavy_rx_thld_packets =
 252                         IWL_MVM_PS_HEAVY_RX_THLD_PACKETS;
 253         }
 254         cmd->heavy_tx_thld_percentage =
 255                 IWL_MVM_PS_HEAVY_TX_THLD_PERCENT;
 256         cmd->heavy_rx_thld_percentage =
 257                 IWL_MVM_PS_HEAVY_RX_THLD_PERCENT;
 258 }
 259
 260 static bool iwl_mvm_power_allow_uapsd(struct iwl_mvm *mvm,
 261                                        struct ieee80211_vif *vif)
 262 {
 263         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 264
 265         if (!memcmp(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid,
 266                     ETH_ALEN))
 267                 return false;
 268
 269         if (vif->p2p &&
 270             !(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PS_UAPSD))
 271                 return false;
 272         /*
 273          * Avoid using uAPSD if P2P client is associated to GO that uses
 274          * opportunistic power save. This is due to current FW limitation.
 275          */
 276         if (vif->p2p &&
 277             (vif->bss_conf.p2p_noa_attr.oppps_ctwindow &
 278             IEEE80211_P2P_OPPPS_ENABLE_BIT))
 279                 return false;
 280
 281         /*
 282          * Avoid using uAPSD if client is in DCM -
 283          * low latency issue in Miracast
 284          */
 285         if (iwl_mvm_phy_ctx_count(mvm) >= 2)
 286                 return false;
 287
 288         return true;
 289 }
 290
 291 static int iwl_mvm_power_get_skip_over_dtim(int dtimper, int bi)
 292 {
 293         int numerator;
 294         int dtim_interval = dtimper * bi;
 295
 296         if (WARN_ON(!dtim_interval))
 297                 return 0;
 298
 299         if (dtimper == 1) {
 300                 if (bi > 100)
 301                         numerator = 408;
 302                 else
 303                         numerator = 510;
 304         } else if (dtimper < 10) {
 305                 numerator = 612;
 306         } else {
 307                 return 0;
 308         }
 309         return max(1, (numerator / dtim_interval));
 310 }
 311
 312 static bool iwl_mvm_power_is_radar(struct ieee80211_vif *vif)
 313 {
 314         struct ieee80211_chanctx_conf *chanctx_conf;
 315         struct ieee80211_channel *chan;
 316         bool radar_detect = false;
 317
 318         rcu_read_lock();
 319         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 320         WARN_ON(!chanctx_conf);
 321         if (chanctx_conf) {
 322                 chan = chanctx_conf->def.chan;
 323                 radar_detect = chan->flags & IEEE80211_CHAN_RADAR;
 324         }
 325         rcu_read_unlock();
 326
 327         return radar_detect;
 328 }
 329
 330 static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm,
 331                                     struct ieee80211_vif *vif,
 332                                     struct iwl_mac_power_cmd *cmd)
 333 {
 334         int dtimper, bi;
 335         int keep_alive;
 336         bool radar_detect = false;
 337         struct iwl_mvm_vif *mvmvif __maybe_unused =
 338                 iwl_mvm_vif_from_mac80211(vif);
 339
 340         cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
 341                                                             mvmvif->color));
 342         dtimper = vif->bss_conf.dtim_period;
 343         bi = vif->bss_conf.beacon_int;
 344
 345         /*
 346          * Regardless of power management state the driver must set
 347          * keep alive period. FW will use it for sending keep alive NDPs
 348          * immediately after association. Check that keep alive period
 349          * is at least 3 * DTIM
 350          */
 351         keep_alive = DIV_ROUND_UP(ieee80211_tu_to_usec(3 * dtimper * bi),
 352                                   USEC_PER_SEC);
 353         keep_alive = max(keep_alive, POWER_KEEP_ALIVE_PERIOD_SEC);
 354         cmd->keep_alive_seconds = cpu_to_le16(keep_alive);
 355
 356         if (mvm->ps_disabled)
 357                 return;
 358
 359         cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
 360
 361         if (!vif->bss_conf.ps || iwl_mvm_vif_low_latency(mvmvif) ||
 362             !mvmvif->pm_enabled)
 363                 return;
 364
 365         cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK);
 366
 367         if (vif->bss_conf.beacon_rate &&
 368             (vif->bss_conf.beacon_rate->bitrate == 10 ||
 369              vif->bss_conf.beacon_rate->bitrate == 60)) {
 370                 cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
 371                 cmd->lprx_rssi_threshold = POWER_LPRX_RSSI_THRESHOLD;
 372         }
 373
 374         /* Check if radar detection is required on current channel */
 375         radar_detect = iwl_mvm_power_is_radar(vif);
 376
 377         /* Check skip over DTIM conditions */
 378         if (!radar_detect && (dtimper < 10) &&
 379             (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP ||
 380              mvm->cur_ucode == IWL_UCODE_WOWLAN)) {
 381                 cmd->skip_dtim_periods =
 382                         iwl_mvm_power_get_skip_over_dtim(dtimper, bi);
 383                 if (cmd->skip_dtim_periods)
 384                         cmd->flags |=
 385                                 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
 386         }
 387
 388         if (mvm->cur_ucode != IWL_UCODE_WOWLAN) {
 389                 cmd->rx_data_timeout =
 390                         cpu_to_le32(IWL_MVM_DEFAULT_PS_RX_DATA_TIMEOUT);
 391                 cmd->tx_data_timeout =
 392                         cpu_to_le32(IWL_MVM_DEFAULT_PS_TX_DATA_TIMEOUT);
 393         } else {
 394                 cmd->rx_data_timeout =
 395                         cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
 396                 cmd->tx_data_timeout =
 397                         cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
 398         }
 399
 400         if (iwl_mvm_power_allow_uapsd(mvm, vif))
 401                 iwl_mvm_power_configure_uapsd(mvm, vif, cmd);
 402
 403 #ifdef CONFIG_IWLWIFI_DEBUGFS
 404         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_KEEP_ALIVE)
 405                 cmd->keep_alive_seconds =
 406                         cpu_to_le16(mvmvif->dbgfs_pm.keep_alive_seconds);
 407         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_OVER_DTIM) {
 408                 if (mvmvif->dbgfs_pm.skip_over_dtim)
 409                         cmd->flags |=
 410                                 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
 411                 else
 412                         cmd->flags &=
 413                                 cpu_to_le16(~POWER_FLAGS_SKIP_OVER_DTIM_MSK);
 414         }
 415         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_RX_DATA_TIMEOUT)
 416                 cmd->rx_data_timeout =
 417                         cpu_to_le32(mvmvif->dbgfs_pm.rx_data_timeout);
 418         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_TX_DATA_TIMEOUT)
 419                 cmd->tx_data_timeout =
 420                         cpu_to_le32(mvmvif->dbgfs_pm.tx_data_timeout);
 421         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS)
 422                 cmd->skip_dtim_periods = mvmvif->dbgfs_pm.skip_dtim_periods;
 423         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_ENA) {
 424                 if (mvmvif->dbgfs_pm.lprx_ena)
 425                         cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
 426                 else
 427                         cmd->flags &= cpu_to_le16(~POWER_FLAGS_LPRX_ENA_MSK);
 428         }
 429         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD)
 430                 cmd->lprx_rssi_threshold = mvmvif->dbgfs_pm.lprx_rssi_threshold;
 431         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SNOOZE_ENABLE) {
 432                 if (mvmvif->dbgfs_pm.snooze_ena)
 433                         cmd->flags |=
 434                                 cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
 435                 else
 436                         cmd->flags &=
 437                                 cpu_to_le16(~POWER_FLAGS_SNOOZE_ENA_MSK);
 438         }
 439         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_UAPSD_MISBEHAVING) {
 440                 u16 flag = POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK;
 441                 if (mvmvif->dbgfs_pm.uapsd_misbehaving)
 442                         cmd->flags |= cpu_to_le16(flag);
 443                 else
 444                         cmd->flags &= cpu_to_le16(flag);
 445         }
 446 #endif /* CONFIG_IWLWIFI_DEBUGFS */
 447 }
 448
 449 static int iwl_mvm_power_send_cmd(struct iwl_mvm *mvm,
 450                                          struct ieee80211_vif *vif)
 451 {
 452         struct iwl_mac_power_cmd cmd = {};
 453
 454         iwl_mvm_power_build_cmd(mvm, vif, &cmd);
 455         iwl_mvm_power_log(mvm, &cmd);
 456 #ifdef CONFIG_IWLWIFI_DEBUGFS
 457         memcpy(&iwl_mvm_vif_from_mac80211(vif)->mac_pwr_cmd, &cmd, sizeof(cmd));
 458 #endif
 459
 460         return iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, 0,
 461                                     sizeof(cmd), &cmd);
 462 }
 463
 464 int iwl_mvm_power_update_device(struct iwl_mvm *mvm)
 465 {
 466         struct iwl_device_power_cmd cmd = {
 467                 .flags = cpu_to_le16(DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK),
 468         };
 469
 470         if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM)
 471                 mvm->ps_disabled = true;
 472
 473         if (mvm->ps_disabled)
 474                 cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_CAM_MSK);
 475
 476 #ifdef CONFIG_IWLWIFI_DEBUGFS
 477         if ((mvm->cur_ucode == IWL_UCODE_WOWLAN) ? mvm->disable_power_off_d3 :
 478             mvm->disable_power_off)
 479                 cmd.flags &=
 480                         cpu_to_le16(~DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK);
 481 #endif
 482         IWL_DEBUG_POWER(mvm,
 483                         "Sending device power command with flags = 0x%X\n",
 484                         cmd.flags);
 485
 486         return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, 0, sizeof(cmd),
 487                                     &cmd);
 488 }
 489
 490 void iwl_mvm_power_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 491 {
 492         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 493
 494         if (memcmp(vif->bss_conf.bssid, mvmvif->uapsd_misbehaving_bssid,
 495                    ETH_ALEN))
 496                 eth_zero_addr(mvmvif->uapsd_misbehaving_bssid);
 497 }
 498
 499 static void iwl_mvm_power_uapsd_misbehav_ap_iterator(void *_data, u8 *mac,
 500                                                      struct ieee80211_vif *vif)
 501 {
 502         u8 *ap_sta_id = _data;
 503         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 504
 505         /* The ap_sta_id is not expected to change during current association
 506          * so no explicit protection is needed
 507          */
 508         if (mvmvif->ap_sta_id == *ap_sta_id)
 509                 memcpy(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid,
 510                        ETH_ALEN);
 511 }
 512
 513 void iwl_mvm_power_uapsd_misbehaving_ap_notif(struct iwl_mvm *mvm,
 514                                               struct iwl_rx_cmd_buffer *rxb)
 515 {
 516         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 517         struct iwl_uapsd_misbehaving_ap_notif *notif = (void *)pkt->data;
 518         u8 ap_sta_id = le32_to_cpu(notif->sta_id);
 519
 520         ieee80211_iterate_active_interfaces_atomic(
 521                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 522                 iwl_mvm_power_uapsd_misbehav_ap_iterator, &ap_sta_id);
 523 }
 524
 525 struct iwl_power_vifs {
 526         struct iwl_mvm *mvm;
 527         struct ieee80211_vif *bf_vif;
 528         struct ieee80211_vif *bss_vif;
 529         struct ieee80211_vif *p2p_vif;
 530         struct ieee80211_vif *ap_vif;
 531         struct ieee80211_vif *monitor_vif;
 532         bool p2p_active;
 533         bool bss_active;
 534         bool ap_active;
 535         bool monitor_active;
 536 };
 537
 538 static void iwl_mvm_power_disable_pm_iterator(void *_data, u8* mac,
 539                                               struct ieee80211_vif *vif)
 540 {
 541         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 542
 543         mvmvif->pm_enabled = false;
 544 }
 545
 546 static void iwl_mvm_power_ps_disabled_iterator(void *_data, u8* mac,
 547                                                struct ieee80211_vif *vif)
 548 {
 549         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 550         bool *disable_ps = _data;
 551
 552         if (mvmvif->phy_ctxt)
 553                 if (mvmvif->phy_ctxt->id < MAX_PHYS)
 554                         *disable_ps |= mvmvif->ps_disabled;
 555 }
 556
 557 static void iwl_mvm_power_get_vifs_iterator(void *_data, u8 *mac,
 558                                             struct ieee80211_vif *vif)
 559 {
 560         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 561         struct iwl_power_vifs *power_iterator = _data;
 562
 563         switch (ieee80211_vif_type_p2p(vif)) {
 564         case NL80211_IFTYPE_P2P_DEVICE:
 565                 break;
 566
 567         case NL80211_IFTYPE_P2P_GO:
 568         case NL80211_IFTYPE_AP:
 569                 /* only a single MAC of the same type */
 570                 WARN_ON(power_iterator->ap_vif);
 571                 power_iterator->ap_vif = vif;
 572                 if (mvmvif->phy_ctxt)
 573                         if (mvmvif->phy_ctxt->id < MAX_PHYS)
 574                                 power_iterator->ap_active = true;
 575                 break;
 576
 577         case NL80211_IFTYPE_MONITOR:
 578                 /* only a single MAC of the same type */
 579                 WARN_ON(power_iterator->monitor_vif);
 580                 power_iterator->monitor_vif = vif;
 581                 if (mvmvif->phy_ctxt)
 582                         if (mvmvif->phy_ctxt->id < MAX_PHYS)
 583                                 power_iterator->monitor_active = true;
 584                 break;
 585
 586         case NL80211_IFTYPE_P2P_CLIENT:
 587                 /* only a single MAC of the same type */
 588                 WARN_ON(power_iterator->p2p_vif);
 589                 power_iterator->p2p_vif = vif;
 590                 if (mvmvif->phy_ctxt)
 591                         if (mvmvif->phy_ctxt->id < MAX_PHYS)
 592                                 power_iterator->p2p_active = true;
 593                 break;
 594
 595         case NL80211_IFTYPE_STATION:
 596                 /* only a single MAC of the same type */
 597                 WARN_ON(power_iterator->bss_vif);
 598                 power_iterator->bss_vif = vif;
 599                 if (mvmvif->phy_ctxt)
 600                         if (mvmvif->phy_ctxt->id < MAX_PHYS)
 601                                 power_iterator->bss_active = true;
 602
 603                 if (mvmvif->bf_data.bf_enabled &&
 604                     !WARN_ON(power_iterator->bf_vif))
 605                         power_iterator->bf_vif = vif;
 606
 607                 break;
 608
 609         default:
 610                 break;
 611         }
 612 }
 613
 614 static void iwl_mvm_power_set_pm(struct iwl_mvm *mvm,
 615                                  struct iwl_power_vifs *vifs)
 616 {
 617         struct iwl_mvm_vif *bss_mvmvif = NULL;
 618         struct iwl_mvm_vif *p2p_mvmvif = NULL;
 619         struct iwl_mvm_vif *ap_mvmvif = NULL;
 620         bool client_same_channel = false;
 621         bool ap_same_channel = false;
 622
 623         lockdep_assert_held(&mvm->mutex);
 624
 625         /* set pm_enable to false */
 626         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
 627                                         IEEE80211_IFACE_ITER_NORMAL,
 628                                         iwl_mvm_power_disable_pm_iterator,
 629                                         NULL);
 630
 631         if (vifs->bss_vif)
 632                 bss_mvmvif = iwl_mvm_vif_from_mac80211(vifs->bss_vif);
 633
 634         if (vifs->p2p_vif)
 635                 p2p_mvmvif = iwl_mvm_vif_from_mac80211(vifs->p2p_vif);
 636
 637         if (vifs->ap_vif)
 638                 ap_mvmvif = iwl_mvm_vif_from_mac80211(vifs->ap_vif);
 639
 640         /* don't allow PM if any TDLS stations exist */
 641         if (iwl_mvm_tdls_sta_count(mvm, NULL))
 642                 return;
 643
 644         /* enable PM on bss if bss stand alone */
 645         if (vifs->bss_active && !vifs->p2p_active && !vifs->ap_active) {
 646                 bss_mvmvif->pm_enabled = true;
 647                 return;
 648         }
 649
 650         /* enable PM on p2p if p2p stand alone */
 651         if (vifs->p2p_active && !vifs->bss_active && !vifs->ap_active) {
 652                 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM)
 653                         p2p_mvmvif->pm_enabled = true;
 654                 return;
 655         }
 656
 657         if (vifs->bss_active && vifs->p2p_active)
 658                 client_same_channel = (bss_mvmvif->phy_ctxt->id ==
 659                                        p2p_mvmvif->phy_ctxt->id);
 660         if (vifs->bss_active && vifs->ap_active)
 661                 ap_same_channel = (bss_mvmvif->phy_ctxt->id ==
 662                                    ap_mvmvif->phy_ctxt->id);
 663
 664         /* clients are not stand alone: enable PM if DCM */
 665         if (!(client_same_channel || ap_same_channel) &&
 666             (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_DCM)) {
 667                 if (vifs->bss_active)
 668                         bss_mvmvif->pm_enabled = true;
 669                 if (vifs->p2p_active &&
 670                     (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM))
 671                         p2p_mvmvif->pm_enabled = true;
 672                 return;
 673         }
 674
 675         /*
 676          * There is only one channel in the system and there are only
 677          * bss and p2p clients that share it
 678          */
 679         if (client_same_channel && !vifs->ap_active &&
 680             (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_SCM)) {
 681                 /* share same channel*/
 682                 bss_mvmvif->pm_enabled = true;
 683                 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM)
 684                         p2p_mvmvif->pm_enabled = true;
 685         }
 686 }
 687
 688 #ifdef CONFIG_IWLWIFI_DEBUGFS
 689 int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm,
 690                                  struct ieee80211_vif *vif, char *buf,
 691                                  int bufsz)
 692 {
 693         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 694         struct iwl_mac_power_cmd cmd = {};
 695         int pos = 0;
 696
 697         mutex_lock(&mvm->mutex);
 698         memcpy(&cmd, &mvmvif->mac_pwr_cmd, sizeof(cmd));
 699         mutex_unlock(&mvm->mutex);
 700
 701         pos += scnprintf(buf+pos, bufsz-pos, "power_scheme = %d\n",
 702                          iwlmvm_mod_params.power_scheme);
 703         pos += scnprintf(buf+pos, bufsz-pos, "flags = 0x%x\n",
 704                          le16_to_cpu(cmd.flags));
 705         pos += scnprintf(buf+pos, bufsz-pos, "keep_alive = %d\n",
 706                          le16_to_cpu(cmd.keep_alive_seconds));
 707
 708         if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK)))
 709                 return pos;
 710
 711         pos += scnprintf(buf+pos, bufsz-pos, "skip_over_dtim = %d\n",
 712                          (cmd.flags &
 713                          cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK)) ? 1 : 0);
 714         pos += scnprintf(buf+pos, bufsz-pos, "skip_dtim_periods = %d\n",
 715                          cmd.skip_dtim_periods);
 716         if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) {
 717                 pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout = %d\n",
 718                                  le32_to_cpu(cmd.rx_data_timeout));
 719                 pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout = %d\n",
 720                                  le32_to_cpu(cmd.tx_data_timeout));
 721         }
 722         if (cmd.flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
 723                 pos += scnprintf(buf+pos, bufsz-pos,
 724                                  "lprx_rssi_threshold = %d\n",
 725                                  cmd.lprx_rssi_threshold);
 726
 727         if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)))
 728                 return pos;
 729
 730         pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout_uapsd = %d\n",
 731                          le32_to_cpu(cmd.rx_data_timeout_uapsd));
 732         pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout_uapsd = %d\n",
 733                          le32_to_cpu(cmd.tx_data_timeout_uapsd));
 734         pos += scnprintf(buf+pos, bufsz-pos, "qndp_tid = %d\n", cmd.qndp_tid);
 735         pos += scnprintf(buf+pos, bufsz-pos, "uapsd_ac_flags = 0x%x\n",
 736                          cmd.uapsd_ac_flags);
 737         pos += scnprintf(buf+pos, bufsz-pos, "uapsd_max_sp = %d\n",
 738                          cmd.uapsd_max_sp);
 739         pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_packets = %d\n",
 740                          cmd.heavy_tx_thld_packets);
 741         pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_packets = %d\n",
 742                          cmd.heavy_rx_thld_packets);
 743         pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_percentage = %d\n",
 744                          cmd.heavy_tx_thld_percentage);
 745         pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_percentage = %d\n",
 746                          cmd.heavy_rx_thld_percentage);
 747         pos += scnprintf(buf+pos, bufsz-pos, "uapsd_misbehaving_enable = %d\n",
 748                          (cmd.flags &
 749                           cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK)) ?
 750                          1 : 0);
 751
 752         if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)))
 753                 return pos;
 754
 755         pos += scnprintf(buf+pos, bufsz-pos, "snooze_interval = %d\n",
 756                          cmd.snooze_interval);
 757         pos += scnprintf(buf+pos, bufsz-pos, "snooze_window = %d\n",
 758                          cmd.snooze_window);
 759
 760         return pos;
 761 }
 762
 763 void
 764 iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
 765                                          struct iwl_beacon_filter_cmd *cmd)
 766 {
 767         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 768         struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
 769
 770         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ENERGY_DELTA)
 771                 cmd->bf_energy_delta = cpu_to_le32(dbgfs_bf->bf_energy_delta);
 772         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA)
 773                 cmd->bf_roaming_energy_delta =
 774                                 cpu_to_le32(dbgfs_bf->bf_roaming_energy_delta);
 775         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_STATE)
 776                 cmd->bf_roaming_state = cpu_to_le32(dbgfs_bf->bf_roaming_state);
 777         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_THRESHOLD)
 778                 cmd->bf_temp_threshold =
 779                                 cpu_to_le32(dbgfs_bf->bf_temp_threshold);
 780         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_FAST_FILTER)
 781                 cmd->bf_temp_fast_filter =
 782                                 cpu_to_le32(dbgfs_bf->bf_temp_fast_filter);
 783         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_SLOW_FILTER)
 784                 cmd->bf_temp_slow_filter =
 785                                 cpu_to_le32(dbgfs_bf->bf_temp_slow_filter);
 786         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_DEBUG_FLAG)
 787                 cmd->bf_debug_flag = cpu_to_le32(dbgfs_bf->bf_debug_flag);
 788         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ESCAPE_TIMER)
 789                 cmd->bf_escape_timer = cpu_to_le32(dbgfs_bf->bf_escape_timer);
 790         if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ESCAPE_TIMER)
 791                 cmd->ba_escape_timer = cpu_to_le32(dbgfs_bf->ba_escape_timer);
 792         if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT)
 793                 cmd->ba_enable_beacon_abort =
 794                                 cpu_to_le32(dbgfs_bf->ba_enable_beacon_abort);
 795 }
 796 #endif
 797
 798 static int _iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
 799                                          struct ieee80211_vif *vif,
 800                                          struct iwl_beacon_filter_cmd *cmd,
 801                                          u32 cmd_flags,
 802                                          bool d0i3)
 803 {
 804         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 805         int ret;
 806
 807         if (mvmvif != mvm->bf_allowed_vif || !vif->bss_conf.dtim_period ||
 808             vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 809                 return 0;
 810
 811         iwl_mvm_beacon_filter_set_cqm_params(mvm, vif, cmd, d0i3);
 812         if (!d0i3)
 813                 iwl_mvm_beacon_filter_debugfs_parameters(vif, cmd);
 814         ret = iwl_mvm_beacon_filter_send_cmd(mvm, cmd, cmd_flags);
 815
 816         /* don't change bf_enabled in case of temporary d0i3 configuration */
 817         if (!ret && !d0i3)
 818                 mvmvif->bf_data.bf_enabled = true;
 819
 820         return ret;
 821 }
 822
 823 int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
 824                                  struct ieee80211_vif *vif,
 825                                  u32 flags)
 826 {
 827         struct iwl_beacon_filter_cmd cmd = {
 828                 IWL_BF_CMD_CONFIG_DEFAULTS,
 829                 .bf_enable_beacon_filter = cpu_to_le32(1),
 830         };
 831
 832         return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, flags, false);
 833 }
 834
 835 static int iwl_mvm_update_beacon_abort(struct iwl_mvm *mvm,
 836                                        struct ieee80211_vif *vif,
 837                                        bool enable)
 838 {
 839         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 840         struct iwl_beacon_filter_cmd cmd = {
 841                 IWL_BF_CMD_CONFIG_DEFAULTS,
 842                 .bf_enable_beacon_filter = cpu_to_le32(1),
 843         };
 844
 845         if (!mvmvif->bf_data.bf_enabled)
 846                 return 0;
 847
 848         if (mvm->cur_ucode == IWL_UCODE_WOWLAN)
 849                 cmd.ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER_D3);
 850
 851         mvmvif->bf_data.ba_enabled = enable;
 852         return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, 0, false);
 853 }
 854
 855 int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
 856                                   struct ieee80211_vif *vif,
 857                                   u32 flags)
 858 {
 859         struct iwl_beacon_filter_cmd cmd = {};
 860         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 861         int ret;
 862
 863         if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 864                 return 0;
 865
 866         ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd, flags);
 867
 868         if (!ret)
 869                 mvmvif->bf_data.bf_enabled = false;
 870
 871         return ret;
 872 }
 873
 874 static int iwl_mvm_power_set_ps(struct iwl_mvm *mvm)
 875 {
 876         bool disable_ps;
 877         int ret;
 878
 879         /* disable PS if CAM */
 880         disable_ps = (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM);
 881         /* ...or if any of the vifs require PS to be off */
 882         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
 883                                         IEEE80211_IFACE_ITER_NORMAL,
 884                                         iwl_mvm_power_ps_disabled_iterator,
 885                                         &disable_ps);
 886
 887         /* update device power state if it has changed */
 888         if (mvm->ps_disabled != disable_ps) {
 889                 bool old_ps_disabled = mvm->ps_disabled;
 890
 891                 mvm->ps_disabled = disable_ps;
 892                 ret = iwl_mvm_power_update_device(mvm);
 893                 if (ret) {
 894                         mvm->ps_disabled = old_ps_disabled;
 895                         return ret;
 896                 }
 897         }
 898
 899         return 0;
 900 }
 901
 902 static int iwl_mvm_power_set_ba(struct iwl_mvm *mvm,
 903                                 struct iwl_power_vifs *vifs)
 904 {
 905         struct iwl_mvm_vif *mvmvif;
 906         bool ba_enable;
 907
 908         if (!vifs->bf_vif)
 909                 return 0;
 910
 911         mvmvif = iwl_mvm_vif_from_mac80211(vifs->bf_vif);
 912
 913         ba_enable = !(!mvmvif->pm_enabled || mvm->ps_disabled ||
 914                       !vifs->bf_vif->bss_conf.ps ||
 915                       iwl_mvm_vif_low_latency(mvmvif));
 916
 917         return iwl_mvm_update_beacon_abort(mvm, vifs->bf_vif, ba_enable);
 918 }
 919
 920 int iwl_mvm_power_update_ps(struct iwl_mvm *mvm)
 921 {
 922         struct iwl_power_vifs vifs = {
 923                 .mvm = mvm,
 924         };
 925         int ret;
 926
 927         lockdep_assert_held(&mvm->mutex);
 928
 929         /* get vifs info */
 930         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
 931                                         IEEE80211_IFACE_ITER_NORMAL,
 932                                         iwl_mvm_power_get_vifs_iterator, &vifs);
 933
 934         ret = iwl_mvm_power_set_ps(mvm);
 935         if (ret)
 936                 return ret;
 937
 938         return iwl_mvm_power_set_ba(mvm, &vifs);
 939 }
 940
 941 int iwl_mvm_power_update_mac(struct iwl_mvm *mvm)
 942 {
 943         struct iwl_power_vifs vifs = {
 944                 .mvm = mvm,
 945         };
 946         int ret;
 947
 948         lockdep_assert_held(&mvm->mutex);
 949
 950         /* get vifs info */
 951         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
 952                                         IEEE80211_IFACE_ITER_NORMAL,
 953                                         iwl_mvm_power_get_vifs_iterator, &vifs);
 954
 955         iwl_mvm_power_set_pm(mvm, &vifs);
 956
 957         ret = iwl_mvm_power_set_ps(mvm);
 958         if (ret)
 959                 return ret;
 960
 961         if (vifs.bss_vif) {
 962                 ret = iwl_mvm_power_send_cmd(mvm, vifs.bss_vif);
 963                 if (ret)
 964                         return ret;
 965         }
 966
 967         if (vifs.p2p_vif) {
 968                 ret = iwl_mvm_power_send_cmd(mvm, vifs.p2p_vif);
 969                 if (ret)
 970                         return ret;
 971         }
 972
 973         return iwl_mvm_power_set_ba(mvm, &vifs);
 974 }
 975
 976 int iwl_mvm_update_d0i3_power_mode(struct iwl_mvm *mvm,
 977                                    struct ieee80211_vif *vif,
 978                                    bool enable, u32 flags)
 979 {
 980         int ret;
 981         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 982         struct iwl_mac_power_cmd cmd = {};
 983
 984         if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 985                 return 0;
 986
 987         if (!vif->bss_conf.assoc)
 988                 return 0;
 989
 990         iwl_mvm_power_build_cmd(mvm, vif, &cmd);
 991         if (enable) {
 992                 /* configure skip over dtim up to 306TU - 314 msec */
 993                 int dtimper = vif->bss_conf.dtim_period ?: 1;
 994                 int dtimper_tu = dtimper * vif->bss_conf.beacon_int;
 995                 bool radar_detect = iwl_mvm_power_is_radar(vif);
 996
 997                 if (WARN_ON(!dtimper_tu))
 998                         return 0;
 999
1000                 /* Check skip over DTIM conditions */
1001                 /* TODO: check that multicast wake lock is off */
1002                 if (!radar_detect && (dtimper < 10)) {
1003                         cmd.skip_dtim_periods = 306 / dtimper_tu;
1004                         if (cmd.skip_dtim_periods)
1005                                 cmd.flags |= cpu_to_le16(
1006                                         POWER_FLAGS_SKIP_OVER_DTIM_MSK);
1007                 }
1008         }
1009         iwl_mvm_power_log(mvm, &cmd);
1010 #ifdef CONFIG_IWLWIFI_DEBUGFS
1011         memcpy(&mvmvif->mac_pwr_cmd, &cmd, sizeof(cmd));
1012 #endif
1013         ret = iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, flags,
1014                                    sizeof(cmd), &cmd);
1015         if (ret)
1016                 return ret;
1017
1018         /* configure beacon filtering */
1019         if (mvmvif != mvm->bf_allowed_vif)
1020                 return 0;
1021
1022         if (enable) {
1023                 struct iwl_beacon_filter_cmd cmd_bf = {
1024                         IWL_BF_CMD_CONFIG_D0I3,
1025                         .bf_enable_beacon_filter = cpu_to_le32(1),
1026                 };
1027                 ret = _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd_bf,
1028                                                     flags, true);
1029         } else {
1030                 if (mvmvif->bf_data.bf_enabled)
1031                         ret = iwl_mvm_enable_beacon_filter(mvm, vif, flags);
1032                 else
1033                         ret = iwl_mvm_disable_beacon_filter(mvm, vif, flags);
1034         }
1035
1036         return ret;
1037 }