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 * Copyright(c) 2015 - 2017 Intel Deutschland GmbH 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of version 2 of the GNU General Public License as 14 * published by the Free Software Foundation. 15 * 16 * This program is distributed in the hope that it will be useful, but 17 * WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * General Public License for more details. 20 * 21 * The full GNU General Public License is included in this distribution 22 * in the file called COPYING. 23 * 24 * Contact Information: 25 * Intel Linux Wireless <linuxwifi@intel.com> 26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 27 * 28 * BSD LICENSE 29 * 30 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 31 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH 32 * Copyright(c) 2015 - 2017 Intel Deutschland GmbH 33 * All rights reserved. 34 * 35 * Redistribution and use in source and binary forms, with or without 36 * modification, are permitted provided that the following conditions 37 * are met: 38 * 39 * * Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * * Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in 43 * the documentation and/or other materials provided with the 44 * distribution. 45 * * Neither the name Intel Corporation nor the names of its 46 * contributors may be used to endorse or promote products derived 47 * from this software without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 50 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 51 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 52 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 53 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 54 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 55 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 56 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 57 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 59 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 60 * 61 *****************************************************************************/ 62 63 #include <linux/kernel.h> 64 #include <linux/module.h> 65 #include <linux/slab.h> 66 #include <linux/etherdevice.h> 67 68 #include <net/mac80211.h> 69 70 #include "iwl-debug.h" 71 #include "mvm.h" 72 #include "iwl-modparams.h" 73 #include "fw/api/power.h" 74 75 #define POWER_KEEP_ALIVE_PERIOD_SEC 25 76 77 static 78 int iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm *mvm, 79 struct iwl_beacon_filter_cmd *cmd, 80 u32 flags) 81 { 82 IWL_DEBUG_POWER(mvm, "ba_enable_beacon_abort is: %d\n", 83 le32_to_cpu(cmd->ba_enable_beacon_abort)); 84 IWL_DEBUG_POWER(mvm, "ba_escape_timer is: %d\n", 85 le32_to_cpu(cmd->ba_escape_timer)); 86 IWL_DEBUG_POWER(mvm, "bf_debug_flag is: %d\n", 87 le32_to_cpu(cmd->bf_debug_flag)); 88 IWL_DEBUG_POWER(mvm, "bf_enable_beacon_filter is: %d\n", 89 le32_to_cpu(cmd->bf_enable_beacon_filter)); 90 IWL_DEBUG_POWER(mvm, "bf_energy_delta is: %d\n", 91 le32_to_cpu(cmd->bf_energy_delta)); 92 IWL_DEBUG_POWER(mvm, "bf_escape_timer is: %d\n", 93 le32_to_cpu(cmd->bf_escape_timer)); 94 IWL_DEBUG_POWER(mvm, "bf_roaming_energy_delta is: %d\n", 95 le32_to_cpu(cmd->bf_roaming_energy_delta)); 96 IWL_DEBUG_POWER(mvm, "bf_roaming_state is: %d\n", 97 le32_to_cpu(cmd->bf_roaming_state)); 98 IWL_DEBUG_POWER(mvm, "bf_temp_threshold is: %d\n", 99 le32_to_cpu(cmd->bf_temp_threshold)); 100 IWL_DEBUG_POWER(mvm, "bf_temp_fast_filter is: %d\n", 101 le32_to_cpu(cmd->bf_temp_fast_filter)); 102 IWL_DEBUG_POWER(mvm, "bf_temp_slow_filter is: %d\n", 103 le32_to_cpu(cmd->bf_temp_slow_filter)); 104 105 return iwl_mvm_send_cmd_pdu(mvm, REPLY_BEACON_FILTERING_CMD, flags, 106 sizeof(struct iwl_beacon_filter_cmd), cmd); 107 } 108 109 static 110 void iwl_mvm_beacon_filter_set_cqm_params(struct iwl_mvm *mvm, 111 struct ieee80211_vif *vif, 112 struct iwl_beacon_filter_cmd *cmd, 113 bool d0i3) 114 { 115 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 116 117 if (vif->bss_conf.cqm_rssi_thold && !d0i3) { 118 cmd->bf_energy_delta = 119 cpu_to_le32(vif->bss_conf.cqm_rssi_hyst); 120 /* fw uses an absolute value for this */ 121 cmd->bf_roaming_state = 122 cpu_to_le32(-vif->bss_conf.cqm_rssi_thold); 123 } 124 cmd->ba_enable_beacon_abort = cpu_to_le32(mvmvif->bf_data.ba_enabled); 125 } 126 127 static void iwl_mvm_power_log(struct iwl_mvm *mvm, 128 struct iwl_mac_power_cmd *cmd) 129 { 130 IWL_DEBUG_POWER(mvm, 131 "Sending power table command on mac id 0x%X for power level %d, flags = 0x%X\n", 132 cmd->id_and_color, iwlmvm_mod_params.power_scheme, 133 le16_to_cpu(cmd->flags)); 134 IWL_DEBUG_POWER(mvm, "Keep alive = %u sec\n", 135 le16_to_cpu(cmd->keep_alive_seconds)); 136 137 if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK))) { 138 IWL_DEBUG_POWER(mvm, "Disable power management\n"); 139 return; 140 } 141 142 IWL_DEBUG_POWER(mvm, "Rx timeout = %u usec\n", 143 le32_to_cpu(cmd->rx_data_timeout)); 144 IWL_DEBUG_POWER(mvm, "Tx timeout = %u usec\n", 145 le32_to_cpu(cmd->tx_data_timeout)); 146 if (cmd->flags & cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK)) 147 IWL_DEBUG_POWER(mvm, "DTIM periods to skip = %u\n", 148 cmd->skip_dtim_periods); 149 if (cmd->flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK)) 150 IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n", 151 cmd->lprx_rssi_threshold); 152 if (cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)) { 153 IWL_DEBUG_POWER(mvm, "uAPSD enabled\n"); 154 IWL_DEBUG_POWER(mvm, "Rx timeout (uAPSD) = %u usec\n", 155 le32_to_cpu(cmd->rx_data_timeout_uapsd)); 156 IWL_DEBUG_POWER(mvm, "Tx timeout (uAPSD) = %u usec\n", 157 le32_to_cpu(cmd->tx_data_timeout_uapsd)); 158 IWL_DEBUG_POWER(mvm, "QNDP TID = %d\n", cmd->qndp_tid); 159 IWL_DEBUG_POWER(mvm, "ACs flags = 0x%x\n", cmd->uapsd_ac_flags); 160 IWL_DEBUG_POWER(mvm, "Max SP = %d\n", cmd->uapsd_max_sp); 161 } 162 } 163 164 static void iwl_mvm_power_configure_uapsd(struct iwl_mvm *mvm, 165 struct ieee80211_vif *vif, 166 struct iwl_mac_power_cmd *cmd) 167 { 168 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 169 enum ieee80211_ac_numbers ac; 170 bool tid_found = false; 171 172 #ifdef CONFIG_IWLWIFI_DEBUGFS 173 /* set advanced pm flag with no uapsd ACs to enable ps-poll */ 174 if (mvmvif->dbgfs_pm.use_ps_poll) { 175 cmd->flags |= cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK); 176 return; 177 } 178 #endif 179 180 for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_BK; ac++) { 181 if (!mvmvif->queue_params[ac].uapsd) 182 continue; 183 184 if (mvm->fwrt.cur_fw_img != IWL_UCODE_WOWLAN) 185 cmd->flags |= 186 cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK); 187 188 cmd->uapsd_ac_flags |= BIT(ac); 189 190 /* QNDP TID - the highest TID with no admission control */ 191 if (!tid_found && !mvmvif->queue_params[ac].acm) { 192 tid_found = true; 193 switch (ac) { 194 case IEEE80211_AC_VO: 195 cmd->qndp_tid = 6; 196 break; 197 case IEEE80211_AC_VI: 198 cmd->qndp_tid = 5; 199 break; 200 case IEEE80211_AC_BE: 201 cmd->qndp_tid = 0; 202 break; 203 case IEEE80211_AC_BK: 204 cmd->qndp_tid = 1; 205 break; 206 } 207 } 208 } 209 210 cmd->flags |= cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK); 211 212 if (cmd->uapsd_ac_flags == (BIT(IEEE80211_AC_VO) | 213 BIT(IEEE80211_AC_VI) | 214 BIT(IEEE80211_AC_BE) | 215 BIT(IEEE80211_AC_BK))) { 216 cmd->flags |= cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK); 217 cmd->snooze_interval = cpu_to_le16(IWL_MVM_PS_SNOOZE_INTERVAL); 218 cmd->snooze_window = 219 (mvm->fwrt.cur_fw_img == IWL_UCODE_WOWLAN) ? 220 cpu_to_le16(IWL_MVM_WOWLAN_PS_SNOOZE_WINDOW) : 221 cpu_to_le16(IWL_MVM_PS_SNOOZE_WINDOW); 222 } 223 224 cmd->uapsd_max_sp = mvm->hw->uapsd_max_sp_len; 225 226 if (mvm->fwrt.cur_fw_img == IWL_UCODE_WOWLAN || cmd->flags & 227 cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) { 228 cmd->rx_data_timeout_uapsd = 229 cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT); 230 cmd->tx_data_timeout_uapsd = 231 cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT); 232 } else { 233 cmd->rx_data_timeout_uapsd = 234 cpu_to_le32(IWL_MVM_UAPSD_RX_DATA_TIMEOUT); 235 cmd->tx_data_timeout_uapsd = 236 cpu_to_le32(IWL_MVM_UAPSD_TX_DATA_TIMEOUT); 237 } 238 239 if (cmd->flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) { 240 cmd->heavy_tx_thld_packets = 241 IWL_MVM_PS_SNOOZE_HEAVY_TX_THLD_PACKETS; 242 cmd->heavy_rx_thld_packets = 243 IWL_MVM_PS_SNOOZE_HEAVY_RX_THLD_PACKETS; 244 } else { 245 cmd->heavy_tx_thld_packets = 246 IWL_MVM_PS_HEAVY_TX_THLD_PACKETS; 247 cmd->heavy_rx_thld_packets = 248 IWL_MVM_PS_HEAVY_RX_THLD_PACKETS; 249 } 250 cmd->heavy_tx_thld_percentage = 251 IWL_MVM_PS_HEAVY_TX_THLD_PERCENT; 252 cmd->heavy_rx_thld_percentage = 253 IWL_MVM_PS_HEAVY_RX_THLD_PERCENT; 254 } 255 256 static void iwl_mvm_p2p_standalone_iterator(void *_data, u8 *mac, 257 struct ieee80211_vif *vif) 258 { 259 bool *is_p2p_standalone = _data; 260 261 switch (ieee80211_vif_type_p2p(vif)) { 262 case NL80211_IFTYPE_P2P_GO: 263 case NL80211_IFTYPE_AP: 264 *is_p2p_standalone = false; 265 break; 266 case NL80211_IFTYPE_STATION: 267 if (vif->bss_conf.assoc) 268 *is_p2p_standalone = false; 269 break; 270 271 default: 272 break; 273 } 274 } 275 276 static bool iwl_mvm_power_allow_uapsd(struct iwl_mvm *mvm, 277 struct ieee80211_vif *vif) 278 { 279 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 280 281 if (!memcmp(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid, 282 ETH_ALEN)) 283 return false; 284 285 /* 286 * Avoid using uAPSD if P2P client is associated to GO that uses 287 * opportunistic power save. This is due to current FW limitation. 288 */ 289 if (vif->p2p && 290 (vif->bss_conf.p2p_noa_attr.oppps_ctwindow & 291 IEEE80211_P2P_OPPPS_ENABLE_BIT)) 292 return false; 293 294 /* 295 * Avoid using uAPSD if client is in DCM - 296 * low latency issue in Miracast 297 */ 298 if (iwl_mvm_phy_ctx_count(mvm) >= 2) 299 return false; 300 301 if (vif->p2p) { 302 /* Allow U-APSD only if p2p is stand alone */ 303 bool is_p2p_standalone = true; 304 305 if (!iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) 306 return false; 307 308 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 309 IEEE80211_IFACE_ITER_NORMAL, 310 iwl_mvm_p2p_standalone_iterator, 311 &is_p2p_standalone); 312 313 if (!is_p2p_standalone) 314 return false; 315 } 316 317 return true; 318 } 319 320 static bool iwl_mvm_power_is_radar(struct ieee80211_vif *vif) 321 { 322 struct ieee80211_chanctx_conf *chanctx_conf; 323 struct ieee80211_channel *chan; 324 bool radar_detect = false; 325 326 rcu_read_lock(); 327 chanctx_conf = rcu_dereference(vif->chanctx_conf); 328 WARN_ON(!chanctx_conf); 329 if (chanctx_conf) { 330 chan = chanctx_conf->def.chan; 331 radar_detect = chan->flags & IEEE80211_CHAN_RADAR; 332 } 333 rcu_read_unlock(); 334 335 return radar_detect; 336 } 337 338 static void iwl_mvm_power_config_skip_dtim(struct iwl_mvm *mvm, 339 struct ieee80211_vif *vif, 340 struct iwl_mac_power_cmd *cmd, 341 bool host_awake) 342 { 343 int dtimper = vif->bss_conf.dtim_period ?: 1; 344 int skip; 345 346 /* disable, in case we're supposed to override */ 347 cmd->skip_dtim_periods = 0; 348 cmd->flags &= ~cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK); 349 350 if (iwl_mvm_power_is_radar(vif)) 351 return; 352 353 if (dtimper >= 10) 354 return; 355 356 /* TODO: check that multicast wake lock is off */ 357 358 if (host_awake) { 359 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_LP) 360 return; 361 skip = 2; 362 } else { 363 int dtimper_tu = dtimper * vif->bss_conf.beacon_int; 364 365 if (WARN_ON(!dtimper_tu)) 366 return; 367 /* configure skip over dtim up to 306TU - 314 msec */ 368 skip = max_t(u8, 1, 306 / dtimper_tu); 369 } 370 371 /* the firmware really expects "look at every X DTIMs", so add 1 */ 372 cmd->skip_dtim_periods = 1 + skip; 373 cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK); 374 } 375 376 static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, 377 struct ieee80211_vif *vif, 378 struct iwl_mac_power_cmd *cmd, 379 bool host_awake) 380 { 381 int dtimper, bi; 382 int keep_alive; 383 struct iwl_mvm_vif *mvmvif __maybe_unused = 384 iwl_mvm_vif_from_mac80211(vif); 385 386 cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 387 mvmvif->color)); 388 dtimper = vif->bss_conf.dtim_period; 389 bi = vif->bss_conf.beacon_int; 390 391 /* 392 * Regardless of power management state the driver must set 393 * keep alive period. FW will use it for sending keep alive NDPs 394 * immediately after association. Check that keep alive period 395 * is at least 3 * DTIM 396 */ 397 keep_alive = DIV_ROUND_UP(ieee80211_tu_to_usec(3 * dtimper * bi), 398 USEC_PER_SEC); 399 keep_alive = max(keep_alive, POWER_KEEP_ALIVE_PERIOD_SEC); 400 cmd->keep_alive_seconds = cpu_to_le16(keep_alive); 401 402 if (mvm->ps_disabled) 403 return; 404 405 cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK); 406 407 if (!vif->bss_conf.ps || !mvmvif->pm_enabled) 408 return; 409 410 if (iwl_mvm_vif_low_latency(mvmvif) && vif->p2p && 411 (!fw_has_capa(&mvm->fw->ucode_capa, 412 IWL_UCODE_TLV_CAPA_SHORT_PM_TIMEOUTS) || 413 !IWL_MVM_P2P_LOWLATENCY_PS_ENABLE)) 414 return; 415 416 cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK); 417 418 if (vif->bss_conf.beacon_rate && 419 (vif->bss_conf.beacon_rate->bitrate == 10 || 420 vif->bss_conf.beacon_rate->bitrate == 60)) { 421 cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK); 422 cmd->lprx_rssi_threshold = POWER_LPRX_RSSI_THRESHOLD; 423 } 424 425 iwl_mvm_power_config_skip_dtim(mvm, vif, cmd, host_awake); 426 427 if (!host_awake) { 428 cmd->rx_data_timeout = 429 cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT); 430 cmd->tx_data_timeout = 431 cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT); 432 } else if (iwl_mvm_vif_low_latency(mvmvif) && vif->p2p && 433 fw_has_capa(&mvm->fw->ucode_capa, 434 IWL_UCODE_TLV_CAPA_SHORT_PM_TIMEOUTS)) { 435 cmd->tx_data_timeout = 436 cpu_to_le32(IWL_MVM_SHORT_PS_TX_DATA_TIMEOUT); 437 cmd->rx_data_timeout = 438 cpu_to_le32(IWL_MVM_SHORT_PS_RX_DATA_TIMEOUT); 439 } else { 440 cmd->rx_data_timeout = 441 cpu_to_le32(IWL_MVM_DEFAULT_PS_RX_DATA_TIMEOUT); 442 cmd->tx_data_timeout = 443 cpu_to_le32(IWL_MVM_DEFAULT_PS_TX_DATA_TIMEOUT); 444 } 445 446 if (iwl_mvm_power_allow_uapsd(mvm, vif)) 447 iwl_mvm_power_configure_uapsd(mvm, vif, cmd); 448 449 #ifdef CONFIG_IWLWIFI_DEBUGFS 450 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_KEEP_ALIVE) 451 cmd->keep_alive_seconds = 452 cpu_to_le16(mvmvif->dbgfs_pm.keep_alive_seconds); 453 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_OVER_DTIM) { 454 if (mvmvif->dbgfs_pm.skip_over_dtim) 455 cmd->flags |= 456 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK); 457 else 458 cmd->flags &= 459 cpu_to_le16(~POWER_FLAGS_SKIP_OVER_DTIM_MSK); 460 } 461 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_RX_DATA_TIMEOUT) 462 cmd->rx_data_timeout = 463 cpu_to_le32(mvmvif->dbgfs_pm.rx_data_timeout); 464 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_TX_DATA_TIMEOUT) 465 cmd->tx_data_timeout = 466 cpu_to_le32(mvmvif->dbgfs_pm.tx_data_timeout); 467 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS) 468 cmd->skip_dtim_periods = mvmvif->dbgfs_pm.skip_dtim_periods; 469 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_ENA) { 470 if (mvmvif->dbgfs_pm.lprx_ena) 471 cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK); 472 else 473 cmd->flags &= cpu_to_le16(~POWER_FLAGS_LPRX_ENA_MSK); 474 } 475 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD) 476 cmd->lprx_rssi_threshold = mvmvif->dbgfs_pm.lprx_rssi_threshold; 477 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SNOOZE_ENABLE) { 478 if (mvmvif->dbgfs_pm.snooze_ena) 479 cmd->flags |= 480 cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK); 481 else 482 cmd->flags &= 483 cpu_to_le16(~POWER_FLAGS_SNOOZE_ENA_MSK); 484 } 485 if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_UAPSD_MISBEHAVING) { 486 u16 flag = POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK; 487 if (mvmvif->dbgfs_pm.uapsd_misbehaving) 488 cmd->flags |= cpu_to_le16(flag); 489 else 490 cmd->flags &= cpu_to_le16(flag); 491 } 492 #endif /* CONFIG_IWLWIFI_DEBUGFS */ 493 } 494 495 static int iwl_mvm_power_send_cmd(struct iwl_mvm *mvm, 496 struct ieee80211_vif *vif) 497 { 498 struct iwl_mac_power_cmd cmd = {}; 499 500 iwl_mvm_power_build_cmd(mvm, vif, &cmd, 501 mvm->fwrt.cur_fw_img != IWL_UCODE_WOWLAN); 502 iwl_mvm_power_log(mvm, &cmd); 503 #ifdef CONFIG_IWLWIFI_DEBUGFS 504 memcpy(&iwl_mvm_vif_from_mac80211(vif)->mac_pwr_cmd, &cmd, sizeof(cmd)); 505 #endif 506 507 return iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, 0, 508 sizeof(cmd), &cmd); 509 } 510 511 int iwl_mvm_power_update_device(struct iwl_mvm *mvm) 512 { 513 struct iwl_device_power_cmd cmd = { 514 .flags = 0, 515 }; 516 517 if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM) 518 mvm->ps_disabled = true; 519 520 if (!mvm->ps_disabled) 521 cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK); 522 523 #ifdef CONFIG_IWLWIFI_DEBUGFS 524 if ((mvm->fwrt.cur_fw_img == IWL_UCODE_WOWLAN) ? 525 mvm->disable_power_off_d3 : mvm->disable_power_off) 526 cmd.flags &= 527 cpu_to_le16(~DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK); 528 #endif 529 IWL_DEBUG_POWER(mvm, 530 "Sending device power command with flags = 0x%X\n", 531 cmd.flags); 532 533 return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, 0, sizeof(cmd), 534 &cmd); 535 } 536 537 void iwl_mvm_power_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 538 { 539 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 540 541 if (memcmp(vif->bss_conf.bssid, mvmvif->uapsd_misbehaving_bssid, 542 ETH_ALEN)) 543 eth_zero_addr(mvmvif->uapsd_misbehaving_bssid); 544 } 545 546 static void iwl_mvm_power_uapsd_misbehav_ap_iterator(void *_data, u8 *mac, 547 struct ieee80211_vif *vif) 548 { 549 u8 *ap_sta_id = _data; 550 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 551 552 /* The ap_sta_id is not expected to change during current association 553 * so no explicit protection is needed 554 */ 555 if (mvmvif->ap_sta_id == *ap_sta_id) 556 memcpy(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid, 557 ETH_ALEN); 558 } 559 560 void iwl_mvm_power_uapsd_misbehaving_ap_notif(struct iwl_mvm *mvm, 561 struct iwl_rx_cmd_buffer *rxb) 562 { 563 struct iwl_rx_packet *pkt = rxb_addr(rxb); 564 struct iwl_uapsd_misbehaving_ap_notif *notif = (void *)pkt->data; 565 u8 ap_sta_id = le32_to_cpu(notif->sta_id); 566 567 ieee80211_iterate_active_interfaces_atomic( 568 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 569 iwl_mvm_power_uapsd_misbehav_ap_iterator, &ap_sta_id); 570 } 571 572 struct iwl_power_vifs { 573 struct iwl_mvm *mvm; 574 struct ieee80211_vif *bss_vif; 575 struct ieee80211_vif *p2p_vif; 576 struct ieee80211_vif *ap_vif; 577 struct ieee80211_vif *monitor_vif; 578 bool p2p_active; 579 bool bss_active; 580 bool ap_active; 581 bool monitor_active; 582 }; 583 584 static void iwl_mvm_power_disable_pm_iterator(void *_data, u8* mac, 585 struct ieee80211_vif *vif) 586 { 587 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 588 589 mvmvif->pm_enabled = false; 590 } 591 592 static void iwl_mvm_power_ps_disabled_iterator(void *_data, u8* mac, 593 struct ieee80211_vif *vif) 594 { 595 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 596 bool *disable_ps = _data; 597 598 if (mvmvif->phy_ctxt && mvmvif->phy_ctxt->id < NUM_PHY_CTX) 599 *disable_ps |= mvmvif->ps_disabled; 600 } 601 602 static void iwl_mvm_power_get_vifs_iterator(void *_data, u8 *mac, 603 struct ieee80211_vif *vif) 604 { 605 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 606 struct iwl_power_vifs *power_iterator = _data; 607 bool active = mvmvif->phy_ctxt && mvmvif->phy_ctxt->id < NUM_PHY_CTX; 608 609 switch (ieee80211_vif_type_p2p(vif)) { 610 case NL80211_IFTYPE_P2P_DEVICE: 611 break; 612 613 case NL80211_IFTYPE_P2P_GO: 614 case NL80211_IFTYPE_AP: 615 /* only a single MAC of the same type */ 616 WARN_ON(power_iterator->ap_vif); 617 power_iterator->ap_vif = vif; 618 if (active) 619 power_iterator->ap_active = true; 620 break; 621 622 case NL80211_IFTYPE_MONITOR: 623 /* only a single MAC of the same type */ 624 WARN_ON(power_iterator->monitor_vif); 625 power_iterator->monitor_vif = vif; 626 if (active) 627 power_iterator->monitor_active = true; 628 break; 629 630 case NL80211_IFTYPE_P2P_CLIENT: 631 /* only a single MAC of the same type */ 632 WARN_ON(power_iterator->p2p_vif); 633 power_iterator->p2p_vif = vif; 634 if (active) 635 power_iterator->p2p_active = true; 636 break; 637 638 case NL80211_IFTYPE_STATION: 639 power_iterator->bss_vif = vif; 640 if (active) 641 power_iterator->bss_active = true; 642 break; 643 644 default: 645 break; 646 } 647 } 648 649 static void iwl_mvm_power_set_pm(struct iwl_mvm *mvm, 650 struct iwl_power_vifs *vifs) 651 { 652 struct iwl_mvm_vif *bss_mvmvif = NULL; 653 struct iwl_mvm_vif *p2p_mvmvif = NULL; 654 struct iwl_mvm_vif *ap_mvmvif = NULL; 655 bool client_same_channel = false; 656 bool ap_same_channel = false; 657 658 lockdep_assert_held(&mvm->mutex); 659 660 /* set pm_enable to false */ 661 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 662 IEEE80211_IFACE_ITER_NORMAL, 663 iwl_mvm_power_disable_pm_iterator, 664 NULL); 665 666 if (vifs->bss_vif) 667 bss_mvmvif = iwl_mvm_vif_from_mac80211(vifs->bss_vif); 668 669 if (vifs->p2p_vif) 670 p2p_mvmvif = iwl_mvm_vif_from_mac80211(vifs->p2p_vif); 671 672 if (vifs->ap_vif) 673 ap_mvmvif = iwl_mvm_vif_from_mac80211(vifs->ap_vif); 674 675 /* don't allow PM if any TDLS stations exist */ 676 if (iwl_mvm_tdls_sta_count(mvm, NULL)) 677 return; 678 679 /* enable PM on bss if bss stand alone */ 680 if (vifs->bss_active && !vifs->p2p_active && !vifs->ap_active) { 681 bss_mvmvif->pm_enabled = true; 682 return; 683 } 684 685 /* enable PM on p2p if p2p stand alone */ 686 if (vifs->p2p_active && !vifs->bss_active && !vifs->ap_active) { 687 p2p_mvmvif->pm_enabled = true; 688 return; 689 } 690 691 if (vifs->bss_active && vifs->p2p_active) 692 client_same_channel = (bss_mvmvif->phy_ctxt->id == 693 p2p_mvmvif->phy_ctxt->id); 694 if (vifs->bss_active && vifs->ap_active) 695 ap_same_channel = (bss_mvmvif->phy_ctxt->id == 696 ap_mvmvif->phy_ctxt->id); 697 698 /* clients are not stand alone: enable PM if DCM */ 699 if (!(client_same_channel || ap_same_channel)) { 700 if (vifs->bss_active) 701 bss_mvmvif->pm_enabled = true; 702 if (vifs->p2p_active) 703 p2p_mvmvif->pm_enabled = true; 704 return; 705 } 706 707 /* 708 * There is only one channel in the system and there are only 709 * bss and p2p clients that share it 710 */ 711 if (client_same_channel && !vifs->ap_active) { 712 /* share same channel*/ 713 bss_mvmvif->pm_enabled = true; 714 p2p_mvmvif->pm_enabled = true; 715 } 716 } 717 718 #ifdef CONFIG_IWLWIFI_DEBUGFS 719 int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm, 720 struct ieee80211_vif *vif, char *buf, 721 int bufsz) 722 { 723 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 724 struct iwl_mac_power_cmd cmd = {}; 725 int pos = 0; 726 727 mutex_lock(&mvm->mutex); 728 memcpy(&cmd, &mvmvif->mac_pwr_cmd, sizeof(cmd)); 729 mutex_unlock(&mvm->mutex); 730 731 pos += scnprintf(buf+pos, bufsz-pos, "power_scheme = %d\n", 732 iwlmvm_mod_params.power_scheme); 733 pos += scnprintf(buf+pos, bufsz-pos, "flags = 0x%x\n", 734 le16_to_cpu(cmd.flags)); 735 pos += scnprintf(buf+pos, bufsz-pos, "keep_alive = %d\n", 736 le16_to_cpu(cmd.keep_alive_seconds)); 737 738 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK))) 739 return pos; 740 741 pos += scnprintf(buf+pos, bufsz-pos, "skip_over_dtim = %d\n", 742 (cmd.flags & 743 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK)) ? 1 : 0); 744 pos += scnprintf(buf+pos, bufsz-pos, "skip_dtim_periods = %d\n", 745 cmd.skip_dtim_periods); 746 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) { 747 pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout = %d\n", 748 le32_to_cpu(cmd.rx_data_timeout)); 749 pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout = %d\n", 750 le32_to_cpu(cmd.tx_data_timeout)); 751 } 752 if (cmd.flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK)) 753 pos += scnprintf(buf+pos, bufsz-pos, 754 "lprx_rssi_threshold = %d\n", 755 cmd.lprx_rssi_threshold); 756 757 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) 758 return pos; 759 760 pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout_uapsd = %d\n", 761 le32_to_cpu(cmd.rx_data_timeout_uapsd)); 762 pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout_uapsd = %d\n", 763 le32_to_cpu(cmd.tx_data_timeout_uapsd)); 764 pos += scnprintf(buf+pos, bufsz-pos, "qndp_tid = %d\n", cmd.qndp_tid); 765 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_ac_flags = 0x%x\n", 766 cmd.uapsd_ac_flags); 767 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_max_sp = %d\n", 768 cmd.uapsd_max_sp); 769 pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_packets = %d\n", 770 cmd.heavy_tx_thld_packets); 771 pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_packets = %d\n", 772 cmd.heavy_rx_thld_packets); 773 pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_percentage = %d\n", 774 cmd.heavy_tx_thld_percentage); 775 pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_percentage = %d\n", 776 cmd.heavy_rx_thld_percentage); 777 pos += scnprintf(buf+pos, bufsz-pos, "uapsd_misbehaving_enable = %d\n", 778 (cmd.flags & 779 cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK)) ? 780 1 : 0); 781 782 if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK))) 783 return pos; 784 785 pos += scnprintf(buf+pos, bufsz-pos, "snooze_interval = %d\n", 786 cmd.snooze_interval); 787 pos += scnprintf(buf+pos, bufsz-pos, "snooze_window = %d\n", 788 cmd.snooze_window); 789 790 return pos; 791 } 792 793 void 794 iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif, 795 struct iwl_beacon_filter_cmd *cmd) 796 { 797 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 798 struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf; 799 800 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ENERGY_DELTA) 801 cmd->bf_energy_delta = cpu_to_le32(dbgfs_bf->bf_energy_delta); 802 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA) 803 cmd->bf_roaming_energy_delta = 804 cpu_to_le32(dbgfs_bf->bf_roaming_energy_delta); 805 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_STATE) 806 cmd->bf_roaming_state = cpu_to_le32(dbgfs_bf->bf_roaming_state); 807 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_THRESHOLD) 808 cmd->bf_temp_threshold = 809 cpu_to_le32(dbgfs_bf->bf_temp_threshold); 810 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_FAST_FILTER) 811 cmd->bf_temp_fast_filter = 812 cpu_to_le32(dbgfs_bf->bf_temp_fast_filter); 813 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_SLOW_FILTER) 814 cmd->bf_temp_slow_filter = 815 cpu_to_le32(dbgfs_bf->bf_temp_slow_filter); 816 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_DEBUG_FLAG) 817 cmd->bf_debug_flag = cpu_to_le32(dbgfs_bf->bf_debug_flag); 818 if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ESCAPE_TIMER) 819 cmd->bf_escape_timer = cpu_to_le32(dbgfs_bf->bf_escape_timer); 820 if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ESCAPE_TIMER) 821 cmd->ba_escape_timer = cpu_to_le32(dbgfs_bf->ba_escape_timer); 822 if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT) 823 cmd->ba_enable_beacon_abort = 824 cpu_to_le32(dbgfs_bf->ba_enable_beacon_abort); 825 } 826 #endif 827 828 static int _iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm, 829 struct ieee80211_vif *vif, 830 struct iwl_beacon_filter_cmd *cmd, 831 u32 cmd_flags, 832 bool d0i3) 833 { 834 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 835 int ret; 836 837 if (mvmvif != mvm->bf_allowed_vif || !vif->bss_conf.dtim_period || 838 vif->type != NL80211_IFTYPE_STATION || vif->p2p) 839 return 0; 840 841 iwl_mvm_beacon_filter_set_cqm_params(mvm, vif, cmd, d0i3); 842 if (!d0i3) 843 iwl_mvm_beacon_filter_debugfs_parameters(vif, cmd); 844 ret = iwl_mvm_beacon_filter_send_cmd(mvm, cmd, cmd_flags); 845 846 /* don't change bf_enabled in case of temporary d0i3 configuration */ 847 if (!ret && !d0i3) 848 mvmvif->bf_data.bf_enabled = true; 849 850 return ret; 851 } 852 853 int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm, 854 struct ieee80211_vif *vif, 855 u32 flags) 856 { 857 struct iwl_beacon_filter_cmd cmd = { 858 IWL_BF_CMD_CONFIG_DEFAULTS, 859 .bf_enable_beacon_filter = cpu_to_le32(1), 860 }; 861 862 return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, flags, false); 863 } 864 865 static int _iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm, 866 struct ieee80211_vif *vif, 867 u32 flags, bool d0i3) 868 { 869 struct iwl_beacon_filter_cmd cmd = {}; 870 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 871 int ret; 872 873 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) 874 return 0; 875 876 ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd, flags); 877 878 /* don't change bf_enabled in case of temporary d0i3 configuration */ 879 if (!ret && !d0i3) 880 mvmvif->bf_data.bf_enabled = false; 881 882 return ret; 883 } 884 885 int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm, 886 struct ieee80211_vif *vif, 887 u32 flags) 888 { 889 return _iwl_mvm_disable_beacon_filter(mvm, vif, flags, false); 890 } 891 892 static int iwl_mvm_power_set_ps(struct iwl_mvm *mvm) 893 { 894 bool disable_ps; 895 int ret; 896 897 /* disable PS if CAM */ 898 disable_ps = (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM); 899 /* ...or if any of the vifs require PS to be off */ 900 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 901 IEEE80211_IFACE_ITER_NORMAL, 902 iwl_mvm_power_ps_disabled_iterator, 903 &disable_ps); 904 905 /* update device power state if it has changed */ 906 if (mvm->ps_disabled != disable_ps) { 907 bool old_ps_disabled = mvm->ps_disabled; 908 909 mvm->ps_disabled = disable_ps; 910 ret = iwl_mvm_power_update_device(mvm); 911 if (ret) { 912 mvm->ps_disabled = old_ps_disabled; 913 return ret; 914 } 915 } 916 917 return 0; 918 } 919 920 static int iwl_mvm_power_set_ba(struct iwl_mvm *mvm, 921 struct ieee80211_vif *vif) 922 { 923 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 924 struct iwl_beacon_filter_cmd cmd = { 925 IWL_BF_CMD_CONFIG_DEFAULTS, 926 .bf_enable_beacon_filter = cpu_to_le32(1), 927 }; 928 929 if (!mvmvif->bf_data.bf_enabled) 930 return 0; 931 932 if (mvm->fwrt.cur_fw_img == IWL_UCODE_WOWLAN) 933 cmd.ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER_D3); 934 935 mvmvif->bf_data.ba_enabled = !(!mvmvif->pm_enabled || 936 mvm->ps_disabled || 937 !vif->bss_conf.ps || 938 iwl_mvm_vif_low_latency(mvmvif)); 939 940 return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, 0, false); 941 } 942 943 int iwl_mvm_power_update_ps(struct iwl_mvm *mvm) 944 { 945 struct iwl_power_vifs vifs = { 946 .mvm = mvm, 947 }; 948 int ret; 949 950 lockdep_assert_held(&mvm->mutex); 951 952 /* get vifs info */ 953 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 954 IEEE80211_IFACE_ITER_NORMAL, 955 iwl_mvm_power_get_vifs_iterator, &vifs); 956 957 ret = iwl_mvm_power_set_ps(mvm); 958 if (ret) 959 return ret; 960 961 if (vifs.bss_vif) 962 return iwl_mvm_power_set_ba(mvm, vifs.bss_vif); 963 964 return 0; 965 } 966 967 int iwl_mvm_power_update_mac(struct iwl_mvm *mvm) 968 { 969 struct iwl_power_vifs vifs = { 970 .mvm = mvm, 971 }; 972 int ret; 973 974 lockdep_assert_held(&mvm->mutex); 975 976 /* get vifs info */ 977 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 978 IEEE80211_IFACE_ITER_NORMAL, 979 iwl_mvm_power_get_vifs_iterator, &vifs); 980 981 iwl_mvm_power_set_pm(mvm, &vifs); 982 983 ret = iwl_mvm_power_set_ps(mvm); 984 if (ret) 985 return ret; 986 987 if (vifs.bss_vif) { 988 ret = iwl_mvm_power_send_cmd(mvm, vifs.bss_vif); 989 if (ret) 990 return ret; 991 } 992 993 if (vifs.p2p_vif) { 994 ret = iwl_mvm_power_send_cmd(mvm, vifs.p2p_vif); 995 if (ret) 996 return ret; 997 } 998 999 if (vifs.bss_vif) 1000 return iwl_mvm_power_set_ba(mvm, vifs.bss_vif); 1001 1002 return 0; 1003 } 1004 1005 int iwl_mvm_update_d0i3_power_mode(struct iwl_mvm *mvm, 1006 struct ieee80211_vif *vif, 1007 bool enable, u32 flags) 1008 { 1009 int ret; 1010 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1011 struct iwl_mac_power_cmd cmd = {}; 1012 1013 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) 1014 return 0; 1015 1016 if (!vif->bss_conf.assoc) 1017 return 0; 1018 1019 iwl_mvm_power_build_cmd(mvm, vif, &cmd, !enable); 1020 1021 iwl_mvm_power_log(mvm, &cmd); 1022 #ifdef CONFIG_IWLWIFI_DEBUGFS 1023 memcpy(&mvmvif->mac_pwr_cmd, &cmd, sizeof(cmd)); 1024 #endif 1025 ret = iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, flags, 1026 sizeof(cmd), &cmd); 1027 if (ret) 1028 return ret; 1029 1030 /* configure beacon filtering */ 1031 if (mvmvif != mvm->bf_allowed_vif) 1032 return 0; 1033 1034 if (enable) { 1035 struct iwl_beacon_filter_cmd cmd_bf = { 1036 IWL_BF_CMD_CONFIG_D0I3, 1037 .bf_enable_beacon_filter = cpu_to_le32(1), 1038 }; 1039 /* 1040 * When beacon storing is supported - disable beacon filtering 1041 * altogether - the latest beacon will be sent when exiting d0i3 1042 */ 1043 if (fw_has_capa(&mvm->fw->ucode_capa, 1044 IWL_UCODE_TLV_CAPA_BEACON_STORING)) 1045 ret = _iwl_mvm_disable_beacon_filter(mvm, vif, flags, 1046 true); 1047 else 1048 ret = _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd_bf, 1049 flags, true); 1050 } else { 1051 if (mvmvif->bf_data.bf_enabled) 1052 ret = iwl_mvm_enable_beacon_filter(mvm, vif, flags); 1053 else 1054 ret = iwl_mvm_disable_beacon_filter(mvm, vif, flags); 1055 } 1056 1057 return ret; 1058 } 1059