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

   1 /******************************************************************************
   2  *
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   4  * redistributing this file, you may do so under either license.
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   7  *
   8  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
   9  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  10  * Copyright(c) 2015 - 2017 Intel Deutschland GmbH
  11  *
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  13  * it under the terms of version 2 of the GNU General Public License as
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  35  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  36  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  37  * Copyright(c) 2015 - 2017 Intel Deutschland GmbH
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  54  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  55  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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  57  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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  64  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  65  *
  66  *****************************************************************************/
  67
  68 #include <linux/kernel.h>
  69 #include <linux/module.h>
  70 #include <linux/slab.h>
  71 #include <linux/etherdevice.h>
  72
  73 #include <net/mac80211.h>
  74
  75 #include "iwl-debug.h"
  76 #include "mvm.h"
  77 #include "iwl-modparams.h"
  78 #include "fw/api/power.h"
  79
  80 #define POWER_KEEP_ALIVE_PERIOD_SEC    25
  81
  82 static
  83 int iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm *mvm,
  84                                    struct iwl_beacon_filter_cmd *cmd,
  85                                    u32 flags)
  86 {
  87         IWL_DEBUG_POWER(mvm, "ba_enable_beacon_abort is: %d\n",
  88                         le32_to_cpu(cmd->ba_enable_beacon_abort));
  89         IWL_DEBUG_POWER(mvm, "ba_escape_timer is: %d\n",
  90                         le32_to_cpu(cmd->ba_escape_timer));
  91         IWL_DEBUG_POWER(mvm, "bf_debug_flag is: %d\n",
  92                         le32_to_cpu(cmd->bf_debug_flag));
  93         IWL_DEBUG_POWER(mvm, "bf_enable_beacon_filter is: %d\n",
  94                         le32_to_cpu(cmd->bf_enable_beacon_filter));
  95         IWL_DEBUG_POWER(mvm, "bf_energy_delta is: %d\n",
  96                         le32_to_cpu(cmd->bf_energy_delta));
  97         IWL_DEBUG_POWER(mvm, "bf_escape_timer is: %d\n",
  98                         le32_to_cpu(cmd->bf_escape_timer));
  99         IWL_DEBUG_POWER(mvm, "bf_roaming_energy_delta is: %d\n",
 100                         le32_to_cpu(cmd->bf_roaming_energy_delta));
 101         IWL_DEBUG_POWER(mvm, "bf_roaming_state is: %d\n",
 102                         le32_to_cpu(cmd->bf_roaming_state));
 103         IWL_DEBUG_POWER(mvm, "bf_temp_threshold is: %d\n",
 104                         le32_to_cpu(cmd->bf_temp_threshold));
 105         IWL_DEBUG_POWER(mvm, "bf_temp_fast_filter is: %d\n",
 106                         le32_to_cpu(cmd->bf_temp_fast_filter));
 107         IWL_DEBUG_POWER(mvm, "bf_temp_slow_filter is: %d\n",
 108                         le32_to_cpu(cmd->bf_temp_slow_filter));
 109
 110         return iwl_mvm_send_cmd_pdu(mvm, REPLY_BEACON_FILTERING_CMD, flags,
 111                                     sizeof(struct iwl_beacon_filter_cmd), cmd);
 112 }
 113
 114 static
 115 void iwl_mvm_beacon_filter_set_cqm_params(struct iwl_mvm *mvm,
 116                                           struct ieee80211_vif *vif,
 117                                           struct iwl_beacon_filter_cmd *cmd,
 118                                           bool d0i3)
 119 {
 120         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 121
 122         if (vif->bss_conf.cqm_rssi_thold && !d0i3) {
 123                 cmd->bf_energy_delta =
 124                         cpu_to_le32(vif->bss_conf.cqm_rssi_hyst);
 125                 /* fw uses an absolute value for this */
 126                 cmd->bf_roaming_state =
 127                         cpu_to_le32(-vif->bss_conf.cqm_rssi_thold);
 128         }
 129         cmd->ba_enable_beacon_abort = cpu_to_le32(mvmvif->bf_data.ba_enabled);
 130 }
 131
 132 static void iwl_mvm_power_log(struct iwl_mvm *mvm,
 133                               struct iwl_mac_power_cmd *cmd)
 134 {
 135         IWL_DEBUG_POWER(mvm,
 136                         "Sending power table command on mac id 0x%X for power level %d, flags = 0x%X\n",
 137                         cmd->id_and_color, iwlmvm_mod_params.power_scheme,
 138                         le16_to_cpu(cmd->flags));
 139         IWL_DEBUG_POWER(mvm, "Keep alive = %u sec\n",
 140                         le16_to_cpu(cmd->keep_alive_seconds));
 141
 142         if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK))) {
 143                 IWL_DEBUG_POWER(mvm, "Disable power management\n");
 144                 return;
 145         }
 146
 147         IWL_DEBUG_POWER(mvm, "Rx timeout = %u usec\n",
 148                         le32_to_cpu(cmd->rx_data_timeout));
 149         IWL_DEBUG_POWER(mvm, "Tx timeout = %u usec\n",
 150                         le32_to_cpu(cmd->tx_data_timeout));
 151         if (cmd->flags & cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK))
 152                 IWL_DEBUG_POWER(mvm, "DTIM periods to skip = %u\n",
 153                                 cmd->skip_dtim_periods);
 154         if (cmd->flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
 155                 IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n",
 156                                 cmd->lprx_rssi_threshold);
 157         if (cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)) {
 158                 IWL_DEBUG_POWER(mvm, "uAPSD enabled\n");
 159                 IWL_DEBUG_POWER(mvm, "Rx timeout (uAPSD) = %u usec\n",
 160                                 le32_to_cpu(cmd->rx_data_timeout_uapsd));
 161                 IWL_DEBUG_POWER(mvm, "Tx timeout (uAPSD) = %u usec\n",
 162                                 le32_to_cpu(cmd->tx_data_timeout_uapsd));
 163                 IWL_DEBUG_POWER(mvm, "QNDP TID = %d\n", cmd->qndp_tid);
 164                 IWL_DEBUG_POWER(mvm, "ACs flags = 0x%x\n", cmd->uapsd_ac_flags);
 165                 IWL_DEBUG_POWER(mvm, "Max SP = %d\n", cmd->uapsd_max_sp);
 166         }
 167 }
 168
 169 static void iwl_mvm_power_configure_uapsd(struct iwl_mvm *mvm,
 170                                           struct ieee80211_vif *vif,
 171                                           struct iwl_mac_power_cmd *cmd)
 172 {
 173         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 174         enum ieee80211_ac_numbers ac;
 175         bool tid_found = false;
 176
 177 #ifdef CONFIG_IWLWIFI_DEBUGFS
 178         /* set advanced pm flag with no uapsd ACs to enable ps-poll */
 179         if (mvmvif->dbgfs_pm.use_ps_poll) {
 180                 cmd->flags |= cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
 181                 return;
 182         }
 183 #endif
 184
 185         for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_BK; ac++) {
 186                 if (!mvmvif->queue_params[ac].uapsd)
 187                         continue;
 188
 189                 if (mvm->fwrt.cur_fw_img != IWL_UCODE_WOWLAN)
 190                         cmd->flags |=
 191                                 cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
 192
 193                 cmd->uapsd_ac_flags |= BIT(ac);
 194
 195                 /* QNDP TID - the highest TID with no admission control */
 196                 if (!tid_found && !mvmvif->queue_params[ac].acm) {
 197                         tid_found = true;
 198                         switch (ac) {
 199                         case IEEE80211_AC_VO:
 200                                 cmd->qndp_tid = 6;
 201                                 break;
 202                         case IEEE80211_AC_VI:
 203                                 cmd->qndp_tid = 5;
 204                                 break;
 205                         case IEEE80211_AC_BE:
 206                                 cmd->qndp_tid = 0;
 207                                 break;
 208                         case IEEE80211_AC_BK:
 209                                 cmd->qndp_tid = 1;
 210                                 break;
 211                         }
 212                 }
 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 =
 224                         (mvm->fwrt.cur_fw_img == IWL_UCODE_WOWLAN) ?
 225                                 cpu_to_le16(IWL_MVM_WOWLAN_PS_SNOOZE_WINDOW) :
 226                                 cpu_to_le16(IWL_MVM_PS_SNOOZE_WINDOW);
 227         }
 228
 229         cmd->uapsd_max_sp = mvm->hw->uapsd_max_sp_len;
 230
 231         if (mvm->fwrt.cur_fw_img == IWL_UCODE_WOWLAN || cmd->flags &
 232             cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
 233                 cmd->rx_data_timeout_uapsd =
 234                         cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
 235                 cmd->tx_data_timeout_uapsd =
 236                         cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
 237         } else {
 238                 cmd->rx_data_timeout_uapsd =
 239                         cpu_to_le32(IWL_MVM_UAPSD_RX_DATA_TIMEOUT);
 240                 cmd->tx_data_timeout_uapsd =
 241                         cpu_to_le32(IWL_MVM_UAPSD_TX_DATA_TIMEOUT);
 242         }
 243
 244         if (cmd->flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
 245                 cmd->heavy_tx_thld_packets =
 246                         IWL_MVM_PS_SNOOZE_HEAVY_TX_THLD_PACKETS;
 247                 cmd->heavy_rx_thld_packets =
 248                         IWL_MVM_PS_SNOOZE_HEAVY_RX_THLD_PACKETS;
 249         } else {
 250                 cmd->heavy_tx_thld_packets =
 251                         IWL_MVM_PS_HEAVY_TX_THLD_PACKETS;
 252                 cmd->heavy_rx_thld_packets =
 253                         IWL_MVM_PS_HEAVY_RX_THLD_PACKETS;
 254         }
 255         cmd->heavy_tx_thld_percentage =
 256                 IWL_MVM_PS_HEAVY_TX_THLD_PERCENT;
 257         cmd->heavy_rx_thld_percentage =
 258                 IWL_MVM_PS_HEAVY_RX_THLD_PERCENT;
 259 }
 260
 261 static void iwl_mvm_p2p_standalone_iterator(void *_data, u8 *mac,
 262                                             struct ieee80211_vif *vif)
 263 {
 264         bool *is_p2p_standalone = _data;
 265
 266         switch (ieee80211_vif_type_p2p(vif)) {
 267         case NL80211_IFTYPE_P2P_GO:
 268         case NL80211_IFTYPE_AP:
 269                 *is_p2p_standalone = false;
 270                 break;
 271         case NL80211_IFTYPE_STATION:
 272                 if (vif->bss_conf.assoc)
 273                         *is_p2p_standalone = false;
 274                 break;
 275
 276         default:
 277                 break;
 278         }
 279 }
 280
 281 static bool iwl_mvm_power_allow_uapsd(struct iwl_mvm *mvm,
 282                                        struct ieee80211_vif *vif)
 283 {
 284         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 285
 286         if (!memcmp(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid,
 287                     ETH_ALEN))
 288                 return false;
 289
 290         /*
 291          * Avoid using uAPSD if P2P client is associated to GO that uses
 292          * opportunistic power save. This is due to current FW limitation.
 293          */
 294         if (vif->p2p &&
 295             (vif->bss_conf.p2p_noa_attr.oppps_ctwindow &
 296             IEEE80211_P2P_OPPPS_ENABLE_BIT))
 297                 return false;
 298
 299         /*
 300          * Avoid using uAPSD if client is in DCM -
 301          * low latency issue in Miracast
 302          */
 303         if (iwl_mvm_phy_ctx_count(mvm) >= 2)
 304                 return false;
 305
 306         if (vif->p2p) {
 307                 /* Allow U-APSD only if p2p is stand alone */
 308                 bool is_p2p_standalone = true;
 309
 310                 if (!iwl_mvm_is_p2p_scm_uapsd_supported(mvm))
 311                         return false;
 312
 313                 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
 314                                         IEEE80211_IFACE_ITER_NORMAL,
 315                                         iwl_mvm_p2p_standalone_iterator,
 316                                         &is_p2p_standalone);
 317
 318                 if (!is_p2p_standalone)
 319                         return false;
 320         }
 321
 322         return true;
 323 }
 324
 325 static bool iwl_mvm_power_is_radar(struct ieee80211_vif *vif)
 326 {
 327         struct ieee80211_chanctx_conf *chanctx_conf;
 328         struct ieee80211_channel *chan;
 329         bool radar_detect = false;
 330
 331         rcu_read_lock();
 332         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 333         WARN_ON(!chanctx_conf);
 334         if (chanctx_conf) {
 335                 chan = chanctx_conf->def.chan;
 336                 radar_detect = chan->flags & IEEE80211_CHAN_RADAR;
 337         }
 338         rcu_read_unlock();
 339
 340         return radar_detect;
 341 }
 342
 343 static void iwl_mvm_power_config_skip_dtim(struct iwl_mvm *mvm,
 344                                            struct ieee80211_vif *vif,
 345                                            struct iwl_mac_power_cmd *cmd,
 346                                            bool host_awake)
 347 {
 348         int dtimper = vif->bss_conf.dtim_period ?: 1;
 349         int skip;
 350
 351         /* disable, in case we're supposed to override */
 352         cmd->skip_dtim_periods = 0;
 353         cmd->flags &= ~cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
 354
 355         if (iwl_mvm_power_is_radar(vif))
 356                 return;
 357
 358         if (dtimper >= 10)
 359                 return;
 360
 361         /* TODO: check that multicast wake lock is off */
 362
 363         if (host_awake) {
 364                 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_LP)
 365                         return;
 366                 skip = 2;
 367         } else {
 368                 int dtimper_tu = dtimper * vif->bss_conf.beacon_int;
 369
 370                 if (WARN_ON(!dtimper_tu))
 371                         return;
 372                 /* configure skip over dtim up to 306TU - 314 msec */
 373                 skip = max_t(u8, 1, 306 / dtimper_tu);
 374         }
 375
 376         /* the firmware really expects "look at every X DTIMs", so add 1 */
 377         cmd->skip_dtim_periods = 1 + skip;
 378         cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
 379 }
 380
 381 static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm,
 382                                     struct ieee80211_vif *vif,
 383                                     struct iwl_mac_power_cmd *cmd,
 384                                     bool host_awake)
 385 {
 386         int dtimper, bi;
 387         int keep_alive;
 388         struct iwl_mvm_vif *mvmvif __maybe_unused =
 389                 iwl_mvm_vif_from_mac80211(vif);
 390
 391         cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
 392                                                             mvmvif->color));
 393         dtimper = vif->bss_conf.dtim_period;
 394         bi = vif->bss_conf.beacon_int;
 395
 396         /*
 397          * Regardless of power management state the driver must set
 398          * keep alive period. FW will use it for sending keep alive NDPs
 399          * immediately after association. Check that keep alive period
 400          * is at least 3 * DTIM
 401          */
 402         keep_alive = DIV_ROUND_UP(ieee80211_tu_to_usec(3 * dtimper * bi),
 403                                   USEC_PER_SEC);
 404         keep_alive = max(keep_alive, POWER_KEEP_ALIVE_PERIOD_SEC);
 405         cmd->keep_alive_seconds = cpu_to_le16(keep_alive);
 406
 407         if (mvm->ps_disabled)
 408                 return;
 409
 410         cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
 411
 412         if (!vif->bss_conf.ps || !mvmvif->pm_enabled)
 413                 return;
 414
 415         if (iwl_mvm_vif_low_latency(mvmvif) && vif->p2p &&
 416             (!fw_has_capa(&mvm->fw->ucode_capa,
 417                          IWL_UCODE_TLV_CAPA_SHORT_PM_TIMEOUTS) ||
 418              !IWL_MVM_P2P_LOWLATENCY_PS_ENABLE))
 419                 return;
 420
 421         cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK);
 422
 423         if (vif->bss_conf.beacon_rate &&
 424             (vif->bss_conf.beacon_rate->bitrate == 10 ||
 425              vif->bss_conf.beacon_rate->bitrate == 60)) {
 426                 cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
 427                 cmd->lprx_rssi_threshold = POWER_LPRX_RSSI_THRESHOLD;
 428         }
 429
 430         iwl_mvm_power_config_skip_dtim(mvm, vif, cmd, host_awake);
 431
 432         if (!host_awake) {
 433                 cmd->rx_data_timeout =
 434                         cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
 435                 cmd->tx_data_timeout =
 436                         cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
 437         } else if (iwl_mvm_vif_low_latency(mvmvif) && vif->p2p &&
 438                    fw_has_capa(&mvm->fw->ucode_capa,
 439                                IWL_UCODE_TLV_CAPA_SHORT_PM_TIMEOUTS)) {
 440                 cmd->tx_data_timeout =
 441                         cpu_to_le32(IWL_MVM_SHORT_PS_TX_DATA_TIMEOUT);
 442                 cmd->rx_data_timeout =
 443                         cpu_to_le32(IWL_MVM_SHORT_PS_RX_DATA_TIMEOUT);
 444         } else {
 445                 cmd->rx_data_timeout =
 446                         cpu_to_le32(IWL_MVM_DEFAULT_PS_RX_DATA_TIMEOUT);
 447                 cmd->tx_data_timeout =
 448                         cpu_to_le32(IWL_MVM_DEFAULT_PS_TX_DATA_TIMEOUT);
 449         }
 450
 451         if (iwl_mvm_power_allow_uapsd(mvm, vif))
 452                 iwl_mvm_power_configure_uapsd(mvm, vif, cmd);
 453
 454 #ifdef CONFIG_IWLWIFI_DEBUGFS
 455         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_KEEP_ALIVE)
 456                 cmd->keep_alive_seconds =
 457                         cpu_to_le16(mvmvif->dbgfs_pm.keep_alive_seconds);
 458         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_OVER_DTIM) {
 459                 if (mvmvif->dbgfs_pm.skip_over_dtim)
 460                         cmd->flags |=
 461                                 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
 462                 else
 463                         cmd->flags &=
 464                                 cpu_to_le16(~POWER_FLAGS_SKIP_OVER_DTIM_MSK);
 465         }
 466         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_RX_DATA_TIMEOUT)
 467                 cmd->rx_data_timeout =
 468                         cpu_to_le32(mvmvif->dbgfs_pm.rx_data_timeout);
 469         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_TX_DATA_TIMEOUT)
 470                 cmd->tx_data_timeout =
 471                         cpu_to_le32(mvmvif->dbgfs_pm.tx_data_timeout);
 472         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS)
 473                 cmd->skip_dtim_periods = mvmvif->dbgfs_pm.skip_dtim_periods;
 474         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_ENA) {
 475                 if (mvmvif->dbgfs_pm.lprx_ena)
 476                         cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
 477                 else
 478                         cmd->flags &= cpu_to_le16(~POWER_FLAGS_LPRX_ENA_MSK);
 479         }
 480         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD)
 481                 cmd->lprx_rssi_threshold = mvmvif->dbgfs_pm.lprx_rssi_threshold;
 482         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SNOOZE_ENABLE) {
 483                 if (mvmvif->dbgfs_pm.snooze_ena)
 484                         cmd->flags |=
 485                                 cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
 486                 else
 487                         cmd->flags &=
 488                                 cpu_to_le16(~POWER_FLAGS_SNOOZE_ENA_MSK);
 489         }
 490         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_UAPSD_MISBEHAVING) {
 491                 u16 flag = POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK;
 492                 if (mvmvif->dbgfs_pm.uapsd_misbehaving)
 493                         cmd->flags |= cpu_to_le16(flag);
 494                 else
 495                         cmd->flags &= cpu_to_le16(flag);
 496         }
 497 #endif /* CONFIG_IWLWIFI_DEBUGFS */
 498 }
 499
 500 static int iwl_mvm_power_send_cmd(struct iwl_mvm *mvm,
 501                                          struct ieee80211_vif *vif)
 502 {
 503         struct iwl_mac_power_cmd cmd = {};
 504
 505         iwl_mvm_power_build_cmd(mvm, vif, &cmd,
 506                                 mvm->fwrt.cur_fw_img != IWL_UCODE_WOWLAN);
 507         iwl_mvm_power_log(mvm, &cmd);
 508 #ifdef CONFIG_IWLWIFI_DEBUGFS
 509         memcpy(&iwl_mvm_vif_from_mac80211(vif)->mac_pwr_cmd, &cmd, sizeof(cmd));
 510 #endif
 511
 512         return iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, 0,
 513                                     sizeof(cmd), &cmd);
 514 }
 515
 516 int iwl_mvm_power_update_device(struct iwl_mvm *mvm)
 517 {
 518         struct iwl_device_power_cmd cmd = {
 519                 .flags = 0,
 520         };
 521
 522         if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM)
 523                 mvm->ps_disabled = true;
 524
 525         if (!mvm->ps_disabled)
 526                 cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK);
 527
 528 #ifdef CONFIG_IWLWIFI_DEBUGFS
 529         if ((mvm->fwrt.cur_fw_img == IWL_UCODE_WOWLAN) ?
 530                         mvm->disable_power_off_d3 : mvm->disable_power_off)
 531                 cmd.flags &=
 532                         cpu_to_le16(~DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK);
 533 #endif
 534         IWL_DEBUG_POWER(mvm,
 535                         "Sending device power command with flags = 0x%X\n",
 536                         cmd.flags);
 537
 538         return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, 0, sizeof(cmd),
 539                                     &cmd);
 540 }
 541
 542 void iwl_mvm_power_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 543 {
 544         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 545
 546         if (memcmp(vif->bss_conf.bssid, mvmvif->uapsd_misbehaving_bssid,
 547                    ETH_ALEN))
 548                 eth_zero_addr(mvmvif->uapsd_misbehaving_bssid);
 549 }
 550
 551 static void iwl_mvm_power_uapsd_misbehav_ap_iterator(void *_data, u8 *mac,
 552                                                      struct ieee80211_vif *vif)
 553 {
 554         u8 *ap_sta_id = _data;
 555         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 556
 557         /* The ap_sta_id is not expected to change during current association
 558          * so no explicit protection is needed
 559          */
 560         if (mvmvif->ap_sta_id == *ap_sta_id)
 561                 memcpy(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid,
 562                        ETH_ALEN);
 563 }
 564
 565 void iwl_mvm_power_uapsd_misbehaving_ap_notif(struct iwl_mvm *mvm,
 566                                               struct iwl_rx_cmd_buffer *rxb)
 567 {
 568         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 569         struct iwl_uapsd_misbehaving_ap_notif *notif = (void *)pkt->data;
 570         u8 ap_sta_id = le32_to_cpu(notif->sta_id);
 571
 572         ieee80211_iterate_active_interfaces_atomic(
 573                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 574                 iwl_mvm_power_uapsd_misbehav_ap_iterator, &ap_sta_id);
 575 }
 576
 577 struct iwl_power_vifs {
 578         struct iwl_mvm *mvm;
 579         struct ieee80211_vif *bss_vif;
 580         struct ieee80211_vif *p2p_vif;
 581         struct ieee80211_vif *ap_vif;
 582         struct ieee80211_vif *monitor_vif;
 583         bool p2p_active;
 584         bool bss_active;
 585         bool ap_active;
 586         bool monitor_active;
 587 };
 588
 589 static void iwl_mvm_power_disable_pm_iterator(void *_data, u8* mac,
 590                                               struct ieee80211_vif *vif)
 591 {
 592         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 593
 594         mvmvif->pm_enabled = false;
 595 }
 596
 597 static void iwl_mvm_power_ps_disabled_iterator(void *_data, u8* mac,
 598                                                struct ieee80211_vif *vif)
 599 {
 600         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 601         bool *disable_ps = _data;
 602
 603         if (mvmvif->phy_ctxt && mvmvif->phy_ctxt->id < NUM_PHY_CTX)
 604                 *disable_ps |= mvmvif->ps_disabled;
 605 }
 606
 607 static void iwl_mvm_power_get_vifs_iterator(void *_data, u8 *mac,
 608                                             struct ieee80211_vif *vif)
 609 {
 610         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 611         struct iwl_power_vifs *power_iterator = _data;
 612         bool active = mvmvif->phy_ctxt && mvmvif->phy_ctxt->id < NUM_PHY_CTX;
 613
 614         switch (ieee80211_vif_type_p2p(vif)) {
 615         case NL80211_IFTYPE_P2P_DEVICE:
 616                 break;
 617
 618         case NL80211_IFTYPE_P2P_GO:
 619         case NL80211_IFTYPE_AP:
 620                 /* only a single MAC of the same type */
 621                 WARN_ON(power_iterator->ap_vif);
 622                 power_iterator->ap_vif = vif;
 623                 if (active)
 624                         power_iterator->ap_active = true;
 625                 break;
 626
 627         case NL80211_IFTYPE_MONITOR:
 628                 /* only a single MAC of the same type */
 629                 WARN_ON(power_iterator->monitor_vif);
 630                 power_iterator->monitor_vif = vif;
 631                 if (active)
 632                         power_iterator->monitor_active = true;
 633                 break;
 634
 635         case NL80211_IFTYPE_P2P_CLIENT:
 636                 /* only a single MAC of the same type */
 637                 WARN_ON(power_iterator->p2p_vif);
 638                 power_iterator->p2p_vif = vif;
 639                 if (active)
 640                         power_iterator->p2p_active = true;
 641                 break;
 642
 643         case NL80211_IFTYPE_STATION:
 644                 power_iterator->bss_vif = vif;
 645                 if (active)
 646                         power_iterator->bss_active = true;
 647                 break;
 648
 649         default:
 650                 break;
 651         }
 652 }
 653
 654 static void iwl_mvm_power_set_pm(struct iwl_mvm *mvm,
 655                                  struct iwl_power_vifs *vifs)
 656 {
 657         struct iwl_mvm_vif *bss_mvmvif = NULL;
 658         struct iwl_mvm_vif *p2p_mvmvif = NULL;
 659         struct iwl_mvm_vif *ap_mvmvif = NULL;
 660         bool client_same_channel = false;
 661         bool ap_same_channel = false;
 662
 663         lockdep_assert_held(&mvm->mutex);
 664
 665         /* set pm_enable to false */
 666         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
 667                                         IEEE80211_IFACE_ITER_NORMAL,
 668                                         iwl_mvm_power_disable_pm_iterator,
 669                                         NULL);
 670
 671         if (vifs->bss_vif)
 672                 bss_mvmvif = iwl_mvm_vif_from_mac80211(vifs->bss_vif);
 673
 674         if (vifs->p2p_vif)
 675                 p2p_mvmvif = iwl_mvm_vif_from_mac80211(vifs->p2p_vif);
 676
 677         if (vifs->ap_vif)
 678                 ap_mvmvif = iwl_mvm_vif_from_mac80211(vifs->ap_vif);
 679
 680         /* don't allow PM if any TDLS stations exist */
 681         if (iwl_mvm_tdls_sta_count(mvm, NULL))
 682                 return;
 683
 684         /* enable PM on bss if bss stand alone */
 685         if (vifs->bss_active && !vifs->p2p_active && !vifs->ap_active) {
 686                 bss_mvmvif->pm_enabled = true;
 687                 return;
 688         }
 689
 690         /* enable PM on p2p if p2p stand alone */
 691         if (vifs->p2p_active && !vifs->bss_active && !vifs->ap_active) {
 692                 p2p_mvmvif->pm_enabled = true;
 693                 return;
 694         }
 695
 696         if (vifs->bss_active && vifs->p2p_active)
 697                 client_same_channel = (bss_mvmvif->phy_ctxt->id ==
 698                                        p2p_mvmvif->phy_ctxt->id);
 699         if (vifs->bss_active && vifs->ap_active)
 700                 ap_same_channel = (bss_mvmvif->phy_ctxt->id ==
 701                                    ap_mvmvif->phy_ctxt->id);
 702
 703         /* clients are not stand alone: enable PM if DCM */
 704         if (!(client_same_channel || ap_same_channel)) {
 705                 if (vifs->bss_active)
 706                         bss_mvmvif->pm_enabled = true;
 707                 if (vifs->p2p_active)
 708                         p2p_mvmvif->pm_enabled = true;
 709                 return;
 710         }
 711
 712         /*
 713          * There is only one channel in the system and there are only
 714          * bss and p2p clients that share it
 715          */
 716         if (client_same_channel && !vifs->ap_active) {
 717                 /* share same channel*/
 718                 bss_mvmvif->pm_enabled = true;
 719                 p2p_mvmvif->pm_enabled = true;
 720         }
 721 }
 722
 723 #ifdef CONFIG_IWLWIFI_DEBUGFS
 724 int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm,
 725                                  struct ieee80211_vif *vif, char *buf,
 726                                  int bufsz)
 727 {
 728         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 729         struct iwl_mac_power_cmd cmd = {};
 730         int pos = 0;
 731
 732         mutex_lock(&mvm->mutex);
 733         memcpy(&cmd, &mvmvif->mac_pwr_cmd, sizeof(cmd));
 734         mutex_unlock(&mvm->mutex);
 735
 736         pos += scnprintf(buf+pos, bufsz-pos, "power_scheme = %d\n",
 737                          iwlmvm_mod_params.power_scheme);
 738         pos += scnprintf(buf+pos, bufsz-pos, "flags = 0x%x\n",
 739                          le16_to_cpu(cmd.flags));
 740         pos += scnprintf(buf+pos, bufsz-pos, "keep_alive = %d\n",
 741                          le16_to_cpu(cmd.keep_alive_seconds));
 742
 743         if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK)))
 744                 return pos;
 745
 746         pos += scnprintf(buf+pos, bufsz-pos, "skip_over_dtim = %d\n",
 747                          (cmd.flags &
 748                          cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK)) ? 1 : 0);
 749         pos += scnprintf(buf+pos, bufsz-pos, "skip_dtim_periods = %d\n",
 750                          cmd.skip_dtim_periods);
 751         if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) {
 752                 pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout = %d\n",
 753                                  le32_to_cpu(cmd.rx_data_timeout));
 754                 pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout = %d\n",
 755                                  le32_to_cpu(cmd.tx_data_timeout));
 756         }
 757         if (cmd.flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
 758                 pos += scnprintf(buf+pos, bufsz-pos,
 759                                  "lprx_rssi_threshold = %d\n",
 760                                  cmd.lprx_rssi_threshold);
 761
 762         if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)))
 763                 return pos;
 764
 765         pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout_uapsd = %d\n",
 766                          le32_to_cpu(cmd.rx_data_timeout_uapsd));
 767         pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout_uapsd = %d\n",
 768                          le32_to_cpu(cmd.tx_data_timeout_uapsd));
 769         pos += scnprintf(buf+pos, bufsz-pos, "qndp_tid = %d\n", cmd.qndp_tid);
 770         pos += scnprintf(buf+pos, bufsz-pos, "uapsd_ac_flags = 0x%x\n",
 771                          cmd.uapsd_ac_flags);
 772         pos += scnprintf(buf+pos, bufsz-pos, "uapsd_max_sp = %d\n",
 773                          cmd.uapsd_max_sp);
 774         pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_packets = %d\n",
 775                          cmd.heavy_tx_thld_packets);
 776         pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_packets = %d\n",
 777                          cmd.heavy_rx_thld_packets);
 778         pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_percentage = %d\n",
 779                          cmd.heavy_tx_thld_percentage);
 780         pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_percentage = %d\n",
 781                          cmd.heavy_rx_thld_percentage);
 782         pos += scnprintf(buf+pos, bufsz-pos, "uapsd_misbehaving_enable = %d\n",
 783                          (cmd.flags &
 784                           cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK)) ?
 785                          1 : 0);
 786
 787         if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)))
 788                 return pos;
 789
 790         pos += scnprintf(buf+pos, bufsz-pos, "snooze_interval = %d\n",
 791                          cmd.snooze_interval);
 792         pos += scnprintf(buf+pos, bufsz-pos, "snooze_window = %d\n",
 793                          cmd.snooze_window);
 794
 795         return pos;
 796 }
 797
 798 void
 799 iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
 800                                          struct iwl_beacon_filter_cmd *cmd)
 801 {
 802         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 803         struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
 804
 805         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ENERGY_DELTA)
 806                 cmd->bf_energy_delta = cpu_to_le32(dbgfs_bf->bf_energy_delta);
 807         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA)
 808                 cmd->bf_roaming_energy_delta =
 809                                 cpu_to_le32(dbgfs_bf->bf_roaming_energy_delta);
 810         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_STATE)
 811                 cmd->bf_roaming_state = cpu_to_le32(dbgfs_bf->bf_roaming_state);
 812         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_THRESHOLD)
 813                 cmd->bf_temp_threshold =
 814                                 cpu_to_le32(dbgfs_bf->bf_temp_threshold);
 815         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_FAST_FILTER)
 816                 cmd->bf_temp_fast_filter =
 817                                 cpu_to_le32(dbgfs_bf->bf_temp_fast_filter);
 818         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_SLOW_FILTER)
 819                 cmd->bf_temp_slow_filter =
 820                                 cpu_to_le32(dbgfs_bf->bf_temp_slow_filter);
 821         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_DEBUG_FLAG)
 822                 cmd->bf_debug_flag = cpu_to_le32(dbgfs_bf->bf_debug_flag);
 823         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ESCAPE_TIMER)
 824                 cmd->bf_escape_timer = cpu_to_le32(dbgfs_bf->bf_escape_timer);
 825         if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ESCAPE_TIMER)
 826                 cmd->ba_escape_timer = cpu_to_le32(dbgfs_bf->ba_escape_timer);
 827         if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT)
 828                 cmd->ba_enable_beacon_abort =
 829                                 cpu_to_le32(dbgfs_bf->ba_enable_beacon_abort);
 830 }
 831 #endif
 832
 833 static int _iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
 834                                          struct ieee80211_vif *vif,
 835                                          struct iwl_beacon_filter_cmd *cmd,
 836                                          u32 cmd_flags,
 837                                          bool d0i3)
 838 {
 839         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 840         int ret;
 841
 842         if (mvmvif != mvm->bf_allowed_vif || !vif->bss_conf.dtim_period ||
 843             vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 844                 return 0;
 845
 846         iwl_mvm_beacon_filter_set_cqm_params(mvm, vif, cmd, d0i3);
 847         if (!d0i3)
 848                 iwl_mvm_beacon_filter_debugfs_parameters(vif, cmd);
 849         ret = iwl_mvm_beacon_filter_send_cmd(mvm, cmd, cmd_flags);
 850
 851         /* don't change bf_enabled in case of temporary d0i3 configuration */
 852         if (!ret && !d0i3)
 853                 mvmvif->bf_data.bf_enabled = true;
 854
 855         return ret;
 856 }
 857
 858 int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
 859                                  struct ieee80211_vif *vif,
 860                                  u32 flags)
 861 {
 862         struct iwl_beacon_filter_cmd cmd = {
 863                 IWL_BF_CMD_CONFIG_DEFAULTS,
 864                 .bf_enable_beacon_filter = cpu_to_le32(1),
 865         };
 866
 867         return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, flags, false);
 868 }
 869
 870 static int _iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
 871                                           struct ieee80211_vif *vif,
 872                                           u32 flags, bool d0i3)
 873 {
 874         struct iwl_beacon_filter_cmd cmd = {};
 875         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 876         int ret;
 877
 878         if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 879                 return 0;
 880
 881         ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd, flags);
 882
 883         /* don't change bf_enabled in case of temporary d0i3 configuration */
 884         if (!ret && !d0i3)
 885                 mvmvif->bf_data.bf_enabled = false;
 886
 887         return ret;
 888 }
 889
 890 int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
 891                                   struct ieee80211_vif *vif,
 892                                   u32 flags)
 893 {
 894         return _iwl_mvm_disable_beacon_filter(mvm, vif, flags, false);
 895 }
 896
 897 static int iwl_mvm_power_set_ps(struct iwl_mvm *mvm)
 898 {
 899         bool disable_ps;
 900         int ret;
 901
 902         /* disable PS if CAM */
 903         disable_ps = (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM);
 904         /* ...or if any of the vifs require PS to be off */
 905         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
 906                                         IEEE80211_IFACE_ITER_NORMAL,
 907                                         iwl_mvm_power_ps_disabled_iterator,
 908                                         &disable_ps);
 909
 910         /* update device power state if it has changed */
 911         if (mvm->ps_disabled != disable_ps) {
 912                 bool old_ps_disabled = mvm->ps_disabled;
 913
 914                 mvm->ps_disabled = disable_ps;
 915                 ret = iwl_mvm_power_update_device(mvm);
 916                 if (ret) {
 917                         mvm->ps_disabled = old_ps_disabled;
 918                         return ret;
 919                 }
 920         }
 921
 922         return 0;
 923 }
 924
 925 static int iwl_mvm_power_set_ba(struct iwl_mvm *mvm,
 926                                 struct ieee80211_vif *vif)
 927 {
 928         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 929         struct iwl_beacon_filter_cmd cmd = {
 930                 IWL_BF_CMD_CONFIG_DEFAULTS,
 931                 .bf_enable_beacon_filter = cpu_to_le32(1),
 932         };
 933
 934         if (!mvmvif->bf_data.bf_enabled)
 935                 return 0;
 936
 937         if (mvm->fwrt.cur_fw_img == IWL_UCODE_WOWLAN)
 938                 cmd.ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER_D3);
 939
 940         mvmvif->bf_data.ba_enabled = !(!mvmvif->pm_enabled ||
 941                                        mvm->ps_disabled ||
 942                                        !vif->bss_conf.ps ||
 943                                        iwl_mvm_vif_low_latency(mvmvif));
 944
 945         return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, 0, false);
 946 }
 947
 948 int iwl_mvm_power_update_ps(struct iwl_mvm *mvm)
 949 {
 950         struct iwl_power_vifs vifs = {
 951                 .mvm = mvm,
 952         };
 953         int ret;
 954
 955         lockdep_assert_held(&mvm->mutex);
 956
 957         /* get vifs info */
 958         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
 959                                         IEEE80211_IFACE_ITER_NORMAL,
 960                                         iwl_mvm_power_get_vifs_iterator, &vifs);
 961
 962         ret = iwl_mvm_power_set_ps(mvm);
 963         if (ret)
 964                 return ret;
 965
 966         if (vifs.bss_vif)
 967                 return iwl_mvm_power_set_ba(mvm, vifs.bss_vif);
 968
 969         return 0;
 970 }
 971
 972 int iwl_mvm_power_update_mac(struct iwl_mvm *mvm)
 973 {
 974         struct iwl_power_vifs vifs = {
 975                 .mvm = mvm,
 976         };
 977         int ret;
 978
 979         lockdep_assert_held(&mvm->mutex);
 980
 981         /* get vifs info */
 982         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
 983                                         IEEE80211_IFACE_ITER_NORMAL,
 984                                         iwl_mvm_power_get_vifs_iterator, &vifs);
 985
 986         iwl_mvm_power_set_pm(mvm, &vifs);
 987
 988         ret = iwl_mvm_power_set_ps(mvm);
 989         if (ret)
 990                 return ret;
 991
 992         if (vifs.bss_vif) {
 993                 ret = iwl_mvm_power_send_cmd(mvm, vifs.bss_vif);
 994                 if (ret)
 995                         return ret;
 996         }
 997
 998         if (vifs.p2p_vif) {
 999                 ret = iwl_mvm_power_send_cmd(mvm, vifs.p2p_vif);
1000                 if (ret)
1001                         return ret;
1002         }
1003
1004         if (vifs.bss_vif)
1005                 return iwl_mvm_power_set_ba(mvm, vifs.bss_vif);
1006
1007         return 0;
1008 }
1009
1010 int iwl_mvm_update_d0i3_power_mode(struct iwl_mvm *mvm,
1011                                    struct ieee80211_vif *vif,
1012                                    bool enable, u32 flags)
1013 {
1014         int ret;
1015         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1016         struct iwl_mac_power_cmd cmd = {};
1017
1018         if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
1019                 return 0;
1020
1021         if (!vif->bss_conf.assoc)
1022                 return 0;
1023
1024         iwl_mvm_power_build_cmd(mvm, vif, &cmd, !enable);
1025
1026         iwl_mvm_power_log(mvm, &cmd);
1027 #ifdef CONFIG_IWLWIFI_DEBUGFS
1028         memcpy(&mvmvif->mac_pwr_cmd, &cmd, sizeof(cmd));
1029 #endif
1030         ret = iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, flags,
1031                                    sizeof(cmd), &cmd);
1032         if (ret)
1033                 return ret;
1034
1035         /* configure beacon filtering */
1036         if (mvmvif != mvm->bf_allowed_vif)
1037                 return 0;
1038
1039         if (enable) {
1040                 struct iwl_beacon_filter_cmd cmd_bf = {
1041                         IWL_BF_CMD_CONFIG_D0I3,
1042                         .bf_enable_beacon_filter = cpu_to_le32(1),
1043                 };
1044                 /*
1045                  * When beacon storing is supported - disable beacon filtering
1046                  * altogether - the latest beacon will be sent when exiting d0i3
1047                  */
1048                 if (fw_has_capa(&mvm->fw->ucode_capa,
1049                                 IWL_UCODE_TLV_CAPA_BEACON_STORING))
1050                         ret = _iwl_mvm_disable_beacon_filter(mvm, vif, flags,
1051                                                              true);
1052                 else
1053                         ret = _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd_bf,
1054                                                             flags, true);
1055         } else {
1056                 if (mvmvif->bf_data.bf_enabled)
1057                         ret = iwl_mvm_enable_beacon_filter(mvm, vif, flags);
1058                 else
1059                         ret = iwl_mvm_disable_beacon_filter(mvm, vif, flags);
1060         }
1061
1062         return ret;
1063 }