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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  14  *
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  33  *
  34  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  35  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
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  39  * modification, are permitted provided that the following conditions
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  46  *    the documentation and/or other materials provided with the
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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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  60  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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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
  70 #include <net/mac80211.h>
  71
  72 #include "iwl-debug.h"
  73 #include "mvm.h"
  74 #include "iwl-modparams.h"
  75 #include "fw-api-power.h"
  76
  77 #define POWER_KEEP_ALIVE_PERIOD_SEC    25
  78
  79 static
  80 int iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm *mvm,
  81                                    struct iwl_beacon_filter_cmd *cmd,
  82                                    u32 flags)
  83 {
  84         IWL_DEBUG_POWER(mvm, "ba_enable_beacon_abort is: %d\n",
  85                         le32_to_cpu(cmd->ba_enable_beacon_abort));
  86         IWL_DEBUG_POWER(mvm, "ba_escape_timer is: %d\n",
  87                         le32_to_cpu(cmd->ba_escape_timer));
  88         IWL_DEBUG_POWER(mvm, "bf_debug_flag is: %d\n",
  89                         le32_to_cpu(cmd->bf_debug_flag));
  90         IWL_DEBUG_POWER(mvm, "bf_enable_beacon_filter is: %d\n",
  91                         le32_to_cpu(cmd->bf_enable_beacon_filter));
  92         IWL_DEBUG_POWER(mvm, "bf_energy_delta is: %d\n",
  93                         le32_to_cpu(cmd->bf_energy_delta));
  94         IWL_DEBUG_POWER(mvm, "bf_escape_timer is: %d\n",
  95                         le32_to_cpu(cmd->bf_escape_timer));
  96         IWL_DEBUG_POWER(mvm, "bf_roaming_energy_delta is: %d\n",
  97                         le32_to_cpu(cmd->bf_roaming_energy_delta));
  98         IWL_DEBUG_POWER(mvm, "bf_roaming_state is: %d\n",
  99                         le32_to_cpu(cmd->bf_roaming_state));
 100         IWL_DEBUG_POWER(mvm, "bf_temp_threshold is: %d\n",
 101                         le32_to_cpu(cmd->bf_temp_threshold));
 102         IWL_DEBUG_POWER(mvm, "bf_temp_fast_filter is: %d\n",
 103                         le32_to_cpu(cmd->bf_temp_fast_filter));
 104         IWL_DEBUG_POWER(mvm, "bf_temp_slow_filter is: %d\n",
 105                         le32_to_cpu(cmd->bf_temp_slow_filter));
 106
 107         return iwl_mvm_send_cmd_pdu(mvm, REPLY_BEACON_FILTERING_CMD, flags,
 108                                     sizeof(struct iwl_beacon_filter_cmd), cmd);
 109 }
 110
 111 static
 112 void iwl_mvm_beacon_filter_set_cqm_params(struct iwl_mvm *mvm,
 113                                           struct ieee80211_vif *vif,
 114                                           struct iwl_beacon_filter_cmd *cmd)
 115 {
 116         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 117
 118         if (vif->bss_conf.cqm_rssi_thold) {
 119                 cmd->bf_energy_delta =
 120                         cpu_to_le32(vif->bss_conf.cqm_rssi_hyst);
 121                 /* fw uses an absolute value for this */
 122                 cmd->bf_roaming_state =
 123                         cpu_to_le32(-vif->bss_conf.cqm_rssi_thold);
 124         }
 125         cmd->ba_enable_beacon_abort = cpu_to_le32(mvmvif->bf_data.ba_enabled);
 126 }
 127
 128 static void iwl_mvm_power_log(struct iwl_mvm *mvm,
 129                               struct iwl_mac_power_cmd *cmd)
 130 {
 131         IWL_DEBUG_POWER(mvm,
 132                         "Sending power table command on mac id 0x%X for power level %d, flags = 0x%X\n",
 133                         cmd->id_and_color, iwlmvm_mod_params.power_scheme,
 134                         le16_to_cpu(cmd->flags));
 135         IWL_DEBUG_POWER(mvm, "Keep alive = %u sec\n",
 136                         le16_to_cpu(cmd->keep_alive_seconds));
 137
 138         if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK))) {
 139                 IWL_DEBUG_POWER(mvm, "Disable power management\n");
 140                 return;
 141         }
 142
 143         IWL_DEBUG_POWER(mvm, "Rx timeout = %u usec\n",
 144                         le32_to_cpu(cmd->rx_data_timeout));
 145         IWL_DEBUG_POWER(mvm, "Tx timeout = %u usec\n",
 146                         le32_to_cpu(cmd->tx_data_timeout));
 147         if (cmd->flags & cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK))
 148                 IWL_DEBUG_POWER(mvm, "DTIM periods to skip = %u\n",
 149                                 cmd->skip_dtim_periods);
 150         if (cmd->flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
 151                 IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n",
 152                                 cmd->lprx_rssi_threshold);
 153         if (cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)) {
 154                 IWL_DEBUG_POWER(mvm, "uAPSD enabled\n");
 155                 IWL_DEBUG_POWER(mvm, "Rx timeout (uAPSD) = %u usec\n",
 156                                 le32_to_cpu(cmd->rx_data_timeout_uapsd));
 157                 IWL_DEBUG_POWER(mvm, "Tx timeout (uAPSD) = %u usec\n",
 158                                 le32_to_cpu(cmd->tx_data_timeout_uapsd));
 159                 IWL_DEBUG_POWER(mvm, "QNDP TID = %d\n", cmd->qndp_tid);
 160                 IWL_DEBUG_POWER(mvm, "ACs flags = 0x%x\n", cmd->uapsd_ac_flags);
 161                 IWL_DEBUG_POWER(mvm, "Max SP = %d\n", cmd->uapsd_max_sp);
 162         }
 163 }
 164
 165 static void iwl_mvm_power_configure_uapsd(struct iwl_mvm *mvm,
 166                                           struct ieee80211_vif *vif,
 167                                           struct iwl_mac_power_cmd *cmd)
 168 {
 169         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 170         enum ieee80211_ac_numbers ac;
 171         bool tid_found = false;
 172
 173         for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_BK; ac++) {
 174                 if (!mvmvif->queue_params[ac].uapsd)
 175                         continue;
 176
 177                 if (mvm->cur_ucode != IWL_UCODE_WOWLAN)
 178                         cmd->flags |=
 179                                 cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
 180
 181                 cmd->uapsd_ac_flags |= BIT(ac);
 182
 183                 /* QNDP TID - the highest TID with no admission control */
 184                 if (!tid_found && !mvmvif->queue_params[ac].acm) {
 185                         tid_found = true;
 186                         switch (ac) {
 187                         case IEEE80211_AC_VO:
 188                                 cmd->qndp_tid = 6;
 189                                 break;
 190                         case IEEE80211_AC_VI:
 191                                 cmd->qndp_tid = 5;
 192                                 break;
 193                         case IEEE80211_AC_BE:
 194                                 cmd->qndp_tid = 0;
 195                                 break;
 196                         case IEEE80211_AC_BK:
 197                                 cmd->qndp_tid = 1;
 198                                 break;
 199                         }
 200                 }
 201         }
 202
 203         if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) {
 204 #ifdef CONFIG_IWLWIFI_DEBUGFS
 205                 /* set advanced pm flag with no uapsd ACs to enable ps-poll */
 206                 if (mvmvif->dbgfs_pm.use_ps_poll)
 207                         cmd->flags |=
 208                                 cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
 209 #endif
 210                 return;
 211         }
 212
 213         cmd->flags |= cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK);
 214
 215         if (cmd->uapsd_ac_flags == (BIT(IEEE80211_AC_VO) |
 216                                     BIT(IEEE80211_AC_VI) |
 217                                     BIT(IEEE80211_AC_BE) |
 218                                     BIT(IEEE80211_AC_BK))) {
 219                 cmd->flags |= cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
 220                 cmd->snooze_interval = cpu_to_le16(IWL_MVM_PS_SNOOZE_INTERVAL);
 221                 cmd->snooze_window = (mvm->cur_ucode == IWL_UCODE_WOWLAN) ?
 222                         cpu_to_le16(IWL_MVM_WOWLAN_PS_SNOOZE_WINDOW) :
 223                         cpu_to_le16(IWL_MVM_PS_SNOOZE_WINDOW);
 224         }
 225
 226         cmd->uapsd_max_sp = IWL_UAPSD_MAX_SP;
 227
 228         if (mvm->cur_ucode == IWL_UCODE_WOWLAN || cmd->flags &
 229             cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
 230                 cmd->rx_data_timeout_uapsd =
 231                         cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
 232                 cmd->tx_data_timeout_uapsd =
 233                         cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
 234         } else {
 235                 cmd->rx_data_timeout_uapsd =
 236                         cpu_to_le32(IWL_MVM_UAPSD_RX_DATA_TIMEOUT);
 237                 cmd->tx_data_timeout_uapsd =
 238                         cpu_to_le32(IWL_MVM_UAPSD_TX_DATA_TIMEOUT);
 239         }
 240
 241         if (cmd->flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
 242                 cmd->heavy_tx_thld_packets =
 243                         IWL_MVM_PS_SNOOZE_HEAVY_TX_THLD_PACKETS;
 244                 cmd->heavy_rx_thld_packets =
 245                         IWL_MVM_PS_SNOOZE_HEAVY_RX_THLD_PACKETS;
 246         } else {
 247                 cmd->heavy_tx_thld_packets =
 248                         IWL_MVM_PS_HEAVY_TX_THLD_PACKETS;
 249                 cmd->heavy_rx_thld_packets =
 250                         IWL_MVM_PS_HEAVY_RX_THLD_PACKETS;
 251         }
 252         cmd->heavy_tx_thld_percentage =
 253                 IWL_MVM_PS_HEAVY_TX_THLD_PERCENT;
 254         cmd->heavy_rx_thld_percentage =
 255                 IWL_MVM_PS_HEAVY_RX_THLD_PERCENT;
 256 }
 257
 258 static bool iwl_mvm_power_allow_uapsd(struct iwl_mvm *mvm,
 259                                        struct ieee80211_vif *vif)
 260 {
 261         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 262
 263         if (!memcmp(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid,
 264                     ETH_ALEN))
 265                 return false;
 266
 267         if (vif->p2p &&
 268             !(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PS_UAPSD))
 269                 return false;
 270         /*
 271          * Avoid using uAPSD if P2P client is associated to GO that uses
 272          * opportunistic power save. This is due to current FW limitation.
 273          */
 274         if (vif->p2p &&
 275             (vif->bss_conf.p2p_noa_attr.oppps_ctwindow &
 276             IEEE80211_P2P_OPPPS_ENABLE_BIT))
 277                 return false;
 278
 279         /*
 280          * Avoid using uAPSD if client is in DCM -
 281          * low latency issue in Miracast
 282          */
 283         if (iwl_mvm_phy_ctx_count(mvm) >= 2)
 284                 return false;
 285
 286         return true;
 287 }
 288
 289 static int iwl_mvm_power_get_skip_over_dtim(int dtimper, int bi)
 290 {
 291         int numerator;
 292         int dtim_interval = dtimper * bi;
 293
 294         if (WARN_ON(!dtim_interval))
 295                 return 0;
 296
 297         if (dtimper == 1) {
 298                 if (bi > 100)
 299                         numerator = 408;
 300                 else
 301                         numerator = 510;
 302         } else if (dtimper < 10) {
 303                 numerator = 612;
 304         } else {
 305                 return 0;
 306         }
 307         return max(1, (numerator / dtim_interval));
 308 }
 309
 310 static bool iwl_mvm_power_is_radar(struct ieee80211_vif *vif)
 311 {
 312         struct ieee80211_chanctx_conf *chanctx_conf;
 313         struct ieee80211_channel *chan;
 314         bool radar_detect = false;
 315
 316         rcu_read_lock();
 317         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 318         WARN_ON(!chanctx_conf);
 319         if (chanctx_conf) {
 320                 chan = chanctx_conf->def.chan;
 321                 radar_detect = chan->flags & IEEE80211_CHAN_RADAR;
 322         }
 323         rcu_read_unlock();
 324
 325         return radar_detect;
 326 }
 327
 328 static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm,
 329                                     struct ieee80211_vif *vif,
 330                                     struct iwl_mac_power_cmd *cmd)
 331 {
 332         int dtimper, bi;
 333         int keep_alive;
 334         bool radar_detect = false;
 335         struct iwl_mvm_vif *mvmvif __maybe_unused =
 336                 iwl_mvm_vif_from_mac80211(vif);
 337
 338         cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
 339                                                             mvmvif->color));
 340         dtimper = vif->bss_conf.dtim_period;
 341         bi = vif->bss_conf.beacon_int;
 342
 343         /*
 344          * Regardless of power management state the driver must set
 345          * keep alive period. FW will use it for sending keep alive NDPs
 346          * immediately after association. Check that keep alive period
 347          * is at least 3 * DTIM
 348          */
 349         keep_alive = DIV_ROUND_UP(ieee80211_tu_to_usec(3 * dtimper * bi),
 350                                   USEC_PER_SEC);
 351         keep_alive = max(keep_alive, POWER_KEEP_ALIVE_PERIOD_SEC);
 352         cmd->keep_alive_seconds = cpu_to_le16(keep_alive);
 353
 354         if (mvm->ps_disabled)
 355                 return;
 356
 357         cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
 358
 359         if (!vif->bss_conf.ps || iwl_mvm_vif_low_latency(mvmvif) ||
 360             !mvmvif->pm_enabled || iwl_mvm_tdls_sta_count(mvm, vif))
 361                 return;
 362
 363         cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK);
 364
 365         if (vif->bss_conf.beacon_rate &&
 366             (vif->bss_conf.beacon_rate->bitrate == 10 ||
 367              vif->bss_conf.beacon_rate->bitrate == 60)) {
 368                 cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
 369                 cmd->lprx_rssi_threshold = POWER_LPRX_RSSI_THRESHOLD;
 370         }
 371
 372         /* Check if radar detection is required on current channel */
 373         radar_detect = iwl_mvm_power_is_radar(vif);
 374
 375         /* Check skip over DTIM conditions */
 376         if (!radar_detect && (dtimper < 10) &&
 377             (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP ||
 378              mvm->cur_ucode == IWL_UCODE_WOWLAN)) {
 379                 cmd->skip_dtim_periods =
 380                         iwl_mvm_power_get_skip_over_dtim(dtimper, bi);
 381                 if (cmd->skip_dtim_periods)
 382                         cmd->flags |=
 383                                 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
 384         }
 385
 386         if (mvm->cur_ucode != IWL_UCODE_WOWLAN) {
 387                 cmd->rx_data_timeout =
 388                         cpu_to_le32(IWL_MVM_DEFAULT_PS_RX_DATA_TIMEOUT);
 389                 cmd->tx_data_timeout =
 390                         cpu_to_le32(IWL_MVM_DEFAULT_PS_TX_DATA_TIMEOUT);
 391         } else {
 392                 cmd->rx_data_timeout =
 393                         cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
 394                 cmd->tx_data_timeout =
 395                         cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
 396         }
 397
 398         if (iwl_mvm_power_allow_uapsd(mvm, vif))
 399                 iwl_mvm_power_configure_uapsd(mvm, vif, cmd);
 400
 401 #ifdef CONFIG_IWLWIFI_DEBUGFS
 402         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_KEEP_ALIVE)
 403                 cmd->keep_alive_seconds =
 404                         cpu_to_le16(mvmvif->dbgfs_pm.keep_alive_seconds);
 405         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_OVER_DTIM) {
 406                 if (mvmvif->dbgfs_pm.skip_over_dtim)
 407                         cmd->flags |=
 408                                 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
 409                 else
 410                         cmd->flags &=
 411                                 cpu_to_le16(~POWER_FLAGS_SKIP_OVER_DTIM_MSK);
 412         }
 413         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_RX_DATA_TIMEOUT)
 414                 cmd->rx_data_timeout =
 415                         cpu_to_le32(mvmvif->dbgfs_pm.rx_data_timeout);
 416         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_TX_DATA_TIMEOUT)
 417                 cmd->tx_data_timeout =
 418                         cpu_to_le32(mvmvif->dbgfs_pm.tx_data_timeout);
 419         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS)
 420                 cmd->skip_dtim_periods = mvmvif->dbgfs_pm.skip_dtim_periods;
 421         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_ENA) {
 422                 if (mvmvif->dbgfs_pm.lprx_ena)
 423                         cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
 424                 else
 425                         cmd->flags &= cpu_to_le16(~POWER_FLAGS_LPRX_ENA_MSK);
 426         }
 427         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD)
 428                 cmd->lprx_rssi_threshold = mvmvif->dbgfs_pm.lprx_rssi_threshold;
 429         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SNOOZE_ENABLE) {
 430                 if (mvmvif->dbgfs_pm.snooze_ena)
 431                         cmd->flags |=
 432                                 cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
 433                 else
 434                         cmd->flags &=
 435                                 cpu_to_le16(~POWER_FLAGS_SNOOZE_ENA_MSK);
 436         }
 437         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_UAPSD_MISBEHAVING) {
 438                 u16 flag = POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK;
 439                 if (mvmvif->dbgfs_pm.uapsd_misbehaving)
 440                         cmd->flags |= cpu_to_le16(flag);
 441                 else
 442                         cmd->flags &= cpu_to_le16(flag);
 443         }
 444 #endif /* CONFIG_IWLWIFI_DEBUGFS */
 445 }
 446
 447 static int iwl_mvm_power_send_cmd(struct iwl_mvm *mvm,
 448                                          struct ieee80211_vif *vif)
 449 {
 450         struct iwl_mac_power_cmd cmd = {};
 451
 452         iwl_mvm_power_build_cmd(mvm, vif, &cmd);
 453         iwl_mvm_power_log(mvm, &cmd);
 454 #ifdef CONFIG_IWLWIFI_DEBUGFS
 455         memcpy(&iwl_mvm_vif_from_mac80211(vif)->mac_pwr_cmd, &cmd, sizeof(cmd));
 456 #endif
 457
 458         return iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, 0,
 459                                     sizeof(cmd), &cmd);
 460 }
 461
 462 int iwl_mvm_power_update_device(struct iwl_mvm *mvm)
 463 {
 464         struct iwl_device_power_cmd cmd = {
 465                 .flags = cpu_to_le16(DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK),
 466         };
 467
 468         if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM)
 469                 mvm->ps_disabled = true;
 470
 471         if (mvm->ps_disabled)
 472                 cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_CAM_MSK);
 473
 474 #ifdef CONFIG_IWLWIFI_DEBUGFS
 475         if ((mvm->cur_ucode == IWL_UCODE_WOWLAN) ? mvm->disable_power_off_d3 :
 476             mvm->disable_power_off)
 477                 cmd.flags &=
 478                         cpu_to_le16(~DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK);
 479 #endif
 480         IWL_DEBUG_POWER(mvm,
 481                         "Sending device power command with flags = 0x%X\n",
 482                         cmd.flags);
 483
 484         return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, 0, sizeof(cmd),
 485                                     &cmd);
 486 }
 487
 488 void iwl_mvm_power_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 489 {
 490         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 491
 492         if (memcmp(vif->bss_conf.bssid, mvmvif->uapsd_misbehaving_bssid,
 493                    ETH_ALEN))
 494                 memset(mvmvif->uapsd_misbehaving_bssid, 0, ETH_ALEN);
 495 }
 496
 497 static void iwl_mvm_power_uapsd_misbehav_ap_iterator(void *_data, u8 *mac,
 498                                                      struct ieee80211_vif *vif)
 499 {
 500         u8 *ap_sta_id = _data;
 501         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 502
 503         /* The ap_sta_id is not expected to change during current association
 504          * so no explicit protection is needed
 505          */
 506         if (mvmvif->ap_sta_id == *ap_sta_id)
 507                 memcpy(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid,
 508                        ETH_ALEN);
 509 }
 510
 511 int iwl_mvm_power_uapsd_misbehaving_ap_notif(struct iwl_mvm *mvm,
 512                                              struct iwl_rx_cmd_buffer *rxb,
 513                                              struct iwl_device_cmd *cmd)
 514 {
 515         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 516         struct iwl_uapsd_misbehaving_ap_notif *notif = (void *)pkt->data;
 517         u8 ap_sta_id = le32_to_cpu(notif->sta_id);
 518
 519         ieee80211_iterate_active_interfaces_atomic(
 520                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 521                 iwl_mvm_power_uapsd_misbehav_ap_iterator, &ap_sta_id);
 522
 523         return 0;
 524 }
 525
 526 struct iwl_power_vifs {
 527         struct iwl_mvm *mvm;
 528         struct ieee80211_vif *bf_vif;
 529         struct ieee80211_vif *bss_vif;
 530         struct ieee80211_vif *p2p_vif;
 531         struct ieee80211_vif *ap_vif;
 532         struct ieee80211_vif *monitor_vif;
 533         bool p2p_active;
 534         bool bss_active;
 535         bool ap_active;
 536         bool monitor_active;
 537 };
 538
 539 static void iwl_mvm_power_disable_pm_iterator(void *_data, u8* mac,
 540                                               struct ieee80211_vif *vif)
 541 {
 542         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 543
 544         mvmvif->pm_enabled = false;
 545 }
 546
 547 static void iwl_mvm_power_ps_disabled_iterator(void *_data, u8* mac,
 548                                                struct ieee80211_vif *vif)
 549 {
 550         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 551         bool *disable_ps = _data;
 552
 553         if (mvmvif->phy_ctxt)
 554                 if (mvmvif->phy_ctxt->id < MAX_PHYS)
 555                         *disable_ps |= mvmvif->ps_disabled;
 556 }
 557
 558 static void iwl_mvm_power_get_vifs_iterator(void *_data, u8 *mac,
 559                                             struct ieee80211_vif *vif)
 560 {
 561         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 562         struct iwl_power_vifs *power_iterator = _data;
 563
 564         switch (ieee80211_vif_type_p2p(vif)) {
 565         case NL80211_IFTYPE_P2P_DEVICE:
 566                 break;
 567
 568         case NL80211_IFTYPE_P2P_GO:
 569         case NL80211_IFTYPE_AP:
 570                 /* only a single MAC of the same type */
 571                 WARN_ON(power_iterator->ap_vif);
 572                 power_iterator->ap_vif = vif;
 573                 if (mvmvif->phy_ctxt)
 574                         if (mvmvif->phy_ctxt->id < MAX_PHYS)
 575                                 power_iterator->ap_active = true;
 576                 break;
 577
 578         case NL80211_IFTYPE_MONITOR:
 579                 /* only a single MAC of the same type */
 580                 WARN_ON(power_iterator->monitor_vif);
 581                 power_iterator->monitor_vif = vif;
 582                 if (mvmvif->phy_ctxt)
 583                         if (mvmvif->phy_ctxt->id < MAX_PHYS)
 584                                 power_iterator->monitor_active = true;
 585                 break;
 586
 587         case NL80211_IFTYPE_P2P_CLIENT:
 588                 /* only a single MAC of the same type */
 589                 WARN_ON(power_iterator->p2p_vif);
 590                 power_iterator->p2p_vif = vif;
 591                 if (mvmvif->phy_ctxt)
 592                         if (mvmvif->phy_ctxt->id < MAX_PHYS)
 593                                 power_iterator->p2p_active = true;
 594                 break;
 595
 596         case NL80211_IFTYPE_STATION:
 597                 /* only a single MAC of the same type */
 598                 WARN_ON(power_iterator->bss_vif);
 599                 power_iterator->bss_vif = vif;
 600                 if (mvmvif->phy_ctxt)
 601                         if (mvmvif->phy_ctxt->id < MAX_PHYS)
 602                                 power_iterator->bss_active = true;
 603
 604                 if (mvmvif->bf_data.bf_enabled &&
 605                     !WARN_ON(power_iterator->bf_vif))
 606                         power_iterator->bf_vif = vif;
 607
 608                 break;
 609
 610         default:
 611                 break;
 612         }
 613 }
 614
 615 static void iwl_mvm_power_set_pm(struct iwl_mvm *mvm,
 616                                  struct iwl_power_vifs *vifs)
 617 {
 618         struct iwl_mvm_vif *bss_mvmvif = NULL;
 619         struct iwl_mvm_vif *p2p_mvmvif = NULL;
 620         struct iwl_mvm_vif *ap_mvmvif = NULL;
 621         bool client_same_channel = false;
 622         bool ap_same_channel = false;
 623
 624         lockdep_assert_held(&mvm->mutex);
 625
 626         /* set pm_enable to false */
 627         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
 628                                         IEEE80211_IFACE_ITER_NORMAL,
 629                                         iwl_mvm_power_disable_pm_iterator,
 630                                         NULL);
 631
 632         if (vifs->bss_vif)
 633                 bss_mvmvif = iwl_mvm_vif_from_mac80211(vifs->bss_vif);
 634
 635         if (vifs->p2p_vif)
 636                 p2p_mvmvif = iwl_mvm_vif_from_mac80211(vifs->p2p_vif);
 637
 638         if (vifs->ap_vif)
 639                 ap_mvmvif = iwl_mvm_vif_from_mac80211(vifs->ap_vif);
 640
 641         /* enable PM on bss if bss stand alone */
 642         if (vifs->bss_active && !vifs->p2p_active && !vifs->ap_active) {
 643                 bss_mvmvif->pm_enabled = true;
 644                 return;
 645         }
 646
 647         /* enable PM on p2p if p2p stand alone */
 648         if (vifs->p2p_active && !vifs->bss_active && !vifs->ap_active) {
 649                 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM)
 650                         p2p_mvmvif->pm_enabled = true;
 651                 return;
 652         }
 653
 654         if (vifs->bss_active && vifs->p2p_active)
 655                 client_same_channel = (bss_mvmvif->phy_ctxt->id ==
 656                                        p2p_mvmvif->phy_ctxt->id);
 657         if (vifs->bss_active && vifs->ap_active)
 658                 ap_same_channel = (bss_mvmvif->phy_ctxt->id ==
 659                                    ap_mvmvif->phy_ctxt->id);
 660
 661         /* clients are not stand alone: enable PM if DCM */
 662         if (!(client_same_channel || ap_same_channel) &&
 663             (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_DCM)) {
 664                 if (vifs->bss_active)
 665                         bss_mvmvif->pm_enabled = true;
 666                 if (vifs->p2p_active &&
 667                     (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM))
 668                         p2p_mvmvif->pm_enabled = true;
 669                 return;
 670         }
 671
 672         /*
 673          * There is only one channel in the system and there are only
 674          * bss and p2p clients that share it
 675          */
 676         if (client_same_channel && !vifs->ap_active &&
 677             (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_SCM)) {
 678                 /* share same channel*/
 679                 bss_mvmvif->pm_enabled = true;
 680                 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM)
 681                         p2p_mvmvif->pm_enabled = true;
 682         }
 683 }
 684
 685 #ifdef CONFIG_IWLWIFI_DEBUGFS
 686 int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm,
 687                                  struct ieee80211_vif *vif, char *buf,
 688                                  int bufsz)
 689 {
 690         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 691         struct iwl_mac_power_cmd cmd = {};
 692         int pos = 0;
 693
 694         mutex_lock(&mvm->mutex);
 695         memcpy(&cmd, &mvmvif->mac_pwr_cmd, sizeof(cmd));
 696         mutex_unlock(&mvm->mutex);
 697
 698         pos += scnprintf(buf+pos, bufsz-pos, "power_scheme = %d\n",
 699                          iwlmvm_mod_params.power_scheme);
 700         pos += scnprintf(buf+pos, bufsz-pos, "flags = 0x%x\n",
 701                          le16_to_cpu(cmd.flags));
 702         pos += scnprintf(buf+pos, bufsz-pos, "keep_alive = %d\n",
 703                          le16_to_cpu(cmd.keep_alive_seconds));
 704
 705         if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK)))
 706                 return pos;
 707
 708         pos += scnprintf(buf+pos, bufsz-pos, "skip_over_dtim = %d\n",
 709                          (cmd.flags &
 710                          cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK)) ? 1 : 0);
 711         pos += scnprintf(buf+pos, bufsz-pos, "skip_dtim_periods = %d\n",
 712                          cmd.skip_dtim_periods);
 713         if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) {
 714                 pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout = %d\n",
 715                                  le32_to_cpu(cmd.rx_data_timeout));
 716                 pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout = %d\n",
 717                                  le32_to_cpu(cmd.tx_data_timeout));
 718         }
 719         if (cmd.flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
 720                 pos += scnprintf(buf+pos, bufsz-pos,
 721                                  "lprx_rssi_threshold = %d\n",
 722                                  cmd.lprx_rssi_threshold);
 723
 724         if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)))
 725                 return pos;
 726
 727         pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout_uapsd = %d\n",
 728                          le32_to_cpu(cmd.rx_data_timeout_uapsd));
 729         pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout_uapsd = %d\n",
 730                          le32_to_cpu(cmd.tx_data_timeout_uapsd));
 731         pos += scnprintf(buf+pos, bufsz-pos, "qndp_tid = %d\n", cmd.qndp_tid);
 732         pos += scnprintf(buf+pos, bufsz-pos, "uapsd_ac_flags = 0x%x\n",
 733                          cmd.uapsd_ac_flags);
 734         pos += scnprintf(buf+pos, bufsz-pos, "uapsd_max_sp = %d\n",
 735                          cmd.uapsd_max_sp);
 736         pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_packets = %d\n",
 737                          cmd.heavy_tx_thld_packets);
 738         pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_packets = %d\n",
 739                          cmd.heavy_rx_thld_packets);
 740         pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_percentage = %d\n",
 741                          cmd.heavy_tx_thld_percentage);
 742         pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_percentage = %d\n",
 743                          cmd.heavy_rx_thld_percentage);
 744         pos += scnprintf(buf+pos, bufsz-pos, "uapsd_misbehaving_enable = %d\n",
 745                          (cmd.flags &
 746                           cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK)) ?
 747                          1 : 0);
 748
 749         if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)))
 750                 return pos;
 751
 752         pos += scnprintf(buf+pos, bufsz-pos, "snooze_interval = %d\n",
 753                          cmd.snooze_interval);
 754         pos += scnprintf(buf+pos, bufsz-pos, "snooze_window = %d\n",
 755                          cmd.snooze_window);
 756
 757         return pos;
 758 }
 759
 760 void
 761 iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
 762                                          struct iwl_beacon_filter_cmd *cmd)
 763 {
 764         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 765         struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
 766
 767         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ENERGY_DELTA)
 768                 cmd->bf_energy_delta = cpu_to_le32(dbgfs_bf->bf_energy_delta);
 769         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA)
 770                 cmd->bf_roaming_energy_delta =
 771                                 cpu_to_le32(dbgfs_bf->bf_roaming_energy_delta);
 772         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_STATE)
 773                 cmd->bf_roaming_state = cpu_to_le32(dbgfs_bf->bf_roaming_state);
 774         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_THRESHOLD)
 775                 cmd->bf_temp_threshold =
 776                                 cpu_to_le32(dbgfs_bf->bf_temp_threshold);
 777         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_FAST_FILTER)
 778                 cmd->bf_temp_fast_filter =
 779                                 cpu_to_le32(dbgfs_bf->bf_temp_fast_filter);
 780         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_SLOW_FILTER)
 781                 cmd->bf_temp_slow_filter =
 782                                 cpu_to_le32(dbgfs_bf->bf_temp_slow_filter);
 783         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_DEBUG_FLAG)
 784                 cmd->bf_debug_flag = cpu_to_le32(dbgfs_bf->bf_debug_flag);
 785         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ESCAPE_TIMER)
 786                 cmd->bf_escape_timer = cpu_to_le32(dbgfs_bf->bf_escape_timer);
 787         if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ESCAPE_TIMER)
 788                 cmd->ba_escape_timer = cpu_to_le32(dbgfs_bf->ba_escape_timer);
 789         if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT)
 790                 cmd->ba_enable_beacon_abort =
 791                                 cpu_to_le32(dbgfs_bf->ba_enable_beacon_abort);
 792 }
 793 #endif
 794
 795 static int _iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
 796                                          struct ieee80211_vif *vif,
 797                                          struct iwl_beacon_filter_cmd *cmd,
 798                                          u32 cmd_flags,
 799                                          bool d0i3)
 800 {
 801         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 802         int ret;
 803
 804         if (mvmvif != mvm->bf_allowed_vif || !vif->bss_conf.dtim_period ||
 805             vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 806                 return 0;
 807
 808         iwl_mvm_beacon_filter_set_cqm_params(mvm, vif, cmd);
 809         if (!d0i3)
 810                 iwl_mvm_beacon_filter_debugfs_parameters(vif, cmd);
 811         ret = iwl_mvm_beacon_filter_send_cmd(mvm, cmd, cmd_flags);
 812
 813         /* don't change bf_enabled in case of temporary d0i3 configuration */
 814         if (!ret && !d0i3)
 815                 mvmvif->bf_data.bf_enabled = true;
 816
 817         return ret;
 818 }
 819
 820 int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
 821                                  struct ieee80211_vif *vif,
 822                                  u32 flags)
 823 {
 824         struct iwl_beacon_filter_cmd cmd = {
 825                 IWL_BF_CMD_CONFIG_DEFAULTS,
 826                 .bf_enable_beacon_filter = cpu_to_le32(1),
 827         };
 828
 829         return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, flags, false);
 830 }
 831
 832 static int iwl_mvm_update_beacon_abort(struct iwl_mvm *mvm,
 833                                        struct ieee80211_vif *vif,
 834                                        bool enable)
 835 {
 836         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 837         struct iwl_beacon_filter_cmd cmd = {
 838                 IWL_BF_CMD_CONFIG_DEFAULTS,
 839                 .bf_enable_beacon_filter = cpu_to_le32(1),
 840         };
 841
 842         if (!mvmvif->bf_data.bf_enabled)
 843                 return 0;
 844
 845         if (mvm->cur_ucode == IWL_UCODE_WOWLAN)
 846                 cmd.ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER_D3);
 847
 848         mvmvif->bf_data.ba_enabled = enable;
 849         return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, 0, false);
 850 }
 851
 852 int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
 853                                   struct ieee80211_vif *vif,
 854                                   u32 flags)
 855 {
 856         struct iwl_beacon_filter_cmd cmd = {};
 857         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 858         int ret;
 859
 860         if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 861                 return 0;
 862
 863         ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd, flags);
 864
 865         if (!ret)
 866                 mvmvif->bf_data.bf_enabled = false;
 867
 868         return ret;
 869 }
 870
 871 static int iwl_mvm_power_set_ps(struct iwl_mvm *mvm)
 872 {
 873         bool disable_ps;
 874         int ret;
 875
 876         /* disable PS if CAM */
 877         disable_ps = (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM);
 878         /* ...or if any of the vifs require PS to be off */
 879         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
 880                                         IEEE80211_IFACE_ITER_NORMAL,
 881                                         iwl_mvm_power_ps_disabled_iterator,
 882                                         &disable_ps);
 883
 884         /* update device power state if it has changed */
 885         if (mvm->ps_disabled != disable_ps) {
 886                 bool old_ps_disabled = mvm->ps_disabled;
 887
 888                 mvm->ps_disabled = disable_ps;
 889                 ret = iwl_mvm_power_update_device(mvm);
 890                 if (ret) {
 891                         mvm->ps_disabled = old_ps_disabled;
 892                         return ret;
 893                 }
 894         }
 895
 896         return 0;
 897 }
 898
 899 static int iwl_mvm_power_set_ba(struct iwl_mvm *mvm,
 900                                 struct iwl_power_vifs *vifs)
 901 {
 902         struct iwl_mvm_vif *mvmvif;
 903         bool ba_enable;
 904
 905         if (!vifs->bf_vif)
 906                 return 0;
 907
 908         mvmvif = iwl_mvm_vif_from_mac80211(vifs->bf_vif);
 909
 910         ba_enable = !(!mvmvif->pm_enabled || mvm->ps_disabled ||
 911                       !vifs->bf_vif->bss_conf.ps ||
 912                       iwl_mvm_vif_low_latency(mvmvif));
 913
 914         return iwl_mvm_update_beacon_abort(mvm, vifs->bf_vif, ba_enable);
 915 }
 916
 917 int iwl_mvm_power_update_ps(struct iwl_mvm *mvm)
 918 {
 919         struct iwl_power_vifs vifs = {
 920                 .mvm = mvm,
 921         };
 922         int ret;
 923
 924         lockdep_assert_held(&mvm->mutex);
 925
 926         /* get vifs info */
 927         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
 928                                         IEEE80211_IFACE_ITER_NORMAL,
 929                                         iwl_mvm_power_get_vifs_iterator, &vifs);
 930
 931         ret = iwl_mvm_power_set_ps(mvm);
 932         if (ret)
 933                 return ret;
 934
 935         return iwl_mvm_power_set_ba(mvm, &vifs);
 936 }
 937
 938 int iwl_mvm_power_update_mac(struct iwl_mvm *mvm)
 939 {
 940         struct iwl_power_vifs vifs = {
 941                 .mvm = mvm,
 942         };
 943         int ret;
 944
 945         lockdep_assert_held(&mvm->mutex);
 946
 947         /* get vifs info */
 948         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
 949                                         IEEE80211_IFACE_ITER_NORMAL,
 950                                         iwl_mvm_power_get_vifs_iterator, &vifs);
 951
 952         iwl_mvm_power_set_pm(mvm, &vifs);
 953
 954         ret = iwl_mvm_power_set_ps(mvm);
 955         if (ret)
 956                 return ret;
 957
 958         if (vifs.bss_vif) {
 959                 ret = iwl_mvm_power_send_cmd(mvm, vifs.bss_vif);
 960                 if (ret)
 961                         return ret;
 962         }
 963
 964         if (vifs.p2p_vif) {
 965                 ret = iwl_mvm_power_send_cmd(mvm, vifs.p2p_vif);
 966                 if (ret)
 967                         return ret;
 968         }
 969
 970         return iwl_mvm_power_set_ba(mvm, &vifs);
 971 }
 972
 973 int iwl_mvm_update_d0i3_power_mode(struct iwl_mvm *mvm,
 974                                    struct ieee80211_vif *vif,
 975                                    bool enable, u32 flags)
 976 {
 977         int ret;
 978         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 979         struct iwl_mac_power_cmd cmd = {};
 980
 981         if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 982                 return 0;
 983
 984         if (!vif->bss_conf.assoc)
 985                 return 0;
 986
 987         iwl_mvm_power_build_cmd(mvm, vif, &cmd);
 988         if (enable) {
 989                 /* configure skip over dtim up to 306TU - 314 msec */
 990                 int dtimper = vif->bss_conf.dtim_period ?: 1;
 991                 int dtimper_tu = dtimper * vif->bss_conf.beacon_int;
 992                 bool radar_detect = iwl_mvm_power_is_radar(vif);
 993
 994                 if (WARN_ON(!dtimper_tu))
 995                         return 0;
 996
 997                 /* Check skip over DTIM conditions */
 998                 /* TODO: check that multicast wake lock is off */
 999                 if (!radar_detect && (dtimper < 10)) {
1000                         cmd.skip_dtim_periods = 306 / dtimper_tu;
1001                         if (cmd.skip_dtim_periods)
1002                                 cmd.flags |= cpu_to_le16(
1003                                         POWER_FLAGS_SKIP_OVER_DTIM_MSK);
1004                 }
1005         }
1006         iwl_mvm_power_log(mvm, &cmd);
1007 #ifdef CONFIG_IWLWIFI_DEBUGFS
1008         memcpy(&mvmvif->mac_pwr_cmd, &cmd, sizeof(cmd));
1009 #endif
1010         ret = iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, flags,
1011                                    sizeof(cmd), &cmd);
1012         if (ret)
1013                 return ret;
1014
1015         /* configure beacon filtering */
1016         if (mvmvif != mvm->bf_allowed_vif)
1017                 return 0;
1018
1019         if (enable) {
1020                 struct iwl_beacon_filter_cmd cmd_bf = {
1021                         IWL_BF_CMD_CONFIG_D0I3,
1022                         .bf_enable_beacon_filter = cpu_to_le32(1),
1023                 };
1024                 ret = _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd_bf,
1025                                                     flags, true);
1026         } else {
1027                 if (mvmvif->bf_data.bf_enabled)
1028                         ret = iwl_mvm_enable_beacon_filter(mvm, vif, flags);
1029                 else
1030                         ret = iwl_mvm_disable_beacon_filter(mvm, vif, flags);
1031         }
1032
1033         return ret;
1034 }