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) 2013 - 2015 Intel Mobile Communications GmbH 9 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 10 * Copyright(c) 2012 - 2014, 2018 - 2020 Intel Corporation 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) 2013 - 2015 Intel Mobile Communications GmbH 31 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 32 * Copyright(c) 2012 - 2014, 2018 - 2020 Intel Corporation 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 #include <linux/kernel.h> 63 #include <linux/slab.h> 64 #include <linux/skbuff.h> 65 #include <linux/netdevice.h> 66 #include <linux/etherdevice.h> 67 #include <linux/ip.h> 68 #include <linux/if_arp.h> 69 #include <linux/time.h> 70 #include <net/mac80211.h> 71 #include <net/ieee80211_radiotap.h> 72 #include <net/tcp.h> 73 74 #include "iwl-op-mode.h" 75 #include "iwl-io.h" 76 #include "mvm.h" 77 #include "sta.h" 78 #include "time-event.h" 79 #include "iwl-eeprom-parse.h" 80 #include "iwl-phy-db.h" 81 #include "testmode.h" 82 #include "fw/error-dump.h" 83 #include "iwl-prph.h" 84 #include "iwl-nvm-parse.h" 85 86 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 87 { 88 .max = 1, 89 .types = BIT(NL80211_IFTYPE_STATION), 90 }, 91 { 92 .max = 1, 93 .types = BIT(NL80211_IFTYPE_AP) | 94 BIT(NL80211_IFTYPE_P2P_CLIENT) | 95 BIT(NL80211_IFTYPE_P2P_GO), 96 }, 97 { 98 .max = 1, 99 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 100 }, 101 }; 102 103 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 104 { 105 .num_different_channels = 2, 106 .max_interfaces = 3, 107 .limits = iwl_mvm_limits, 108 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 109 }, 110 }; 111 112 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 113 /* 114 * Use the reserved field to indicate magic values. 115 * these values will only be used internally by the driver, 116 * and won't make it to the fw (reserved will be 0). 117 * BC_FILTER_MAGIC_IP - configure the val of this attribute to 118 * be the vif's ip address. in case there is not a single 119 * ip address (0, or more than 1), this attribute will 120 * be skipped. 121 * BC_FILTER_MAGIC_MAC - set the val of this attribute to 122 * the LSB bytes of the vif's mac address 123 */ 124 enum { 125 BC_FILTER_MAGIC_NONE = 0, 126 BC_FILTER_MAGIC_IP, 127 BC_FILTER_MAGIC_MAC, 128 }; 129 130 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { 131 { 132 /* arp */ 133 .discard = 0, 134 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, 135 .attrs = { 136 { 137 /* frame type - arp, hw type - ethernet */ 138 .offset_type = 139 BCAST_FILTER_OFFSET_PAYLOAD_START, 140 .offset = sizeof(rfc1042_header), 141 .val = cpu_to_be32(0x08060001), 142 .mask = cpu_to_be32(0xffffffff), 143 }, 144 { 145 /* arp dest ip */ 146 .offset_type = 147 BCAST_FILTER_OFFSET_PAYLOAD_START, 148 .offset = sizeof(rfc1042_header) + 2 + 149 sizeof(struct arphdr) + 150 ETH_ALEN + sizeof(__be32) + 151 ETH_ALEN, 152 .mask = cpu_to_be32(0xffffffff), 153 /* mark it as special field */ 154 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), 155 }, 156 }, 157 }, 158 { 159 /* dhcp offer bcast */ 160 .discard = 0, 161 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, 162 .attrs = { 163 { 164 /* udp dest port - 68 (bootp client)*/ 165 .offset_type = BCAST_FILTER_OFFSET_IP_END, 166 .offset = offsetof(struct udphdr, dest), 167 .val = cpu_to_be32(0x00440000), 168 .mask = cpu_to_be32(0xffff0000), 169 }, 170 { 171 /* dhcp - lsb bytes of client hw address */ 172 .offset_type = BCAST_FILTER_OFFSET_IP_END, 173 .offset = 38, 174 .mask = cpu_to_be32(0xffffffff), 175 /* mark it as special field */ 176 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), 177 }, 178 }, 179 }, 180 /* last filter must be empty */ 181 {}, 182 }; 183 #endif 184 185 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 186 .max_peers = IWL_MVM_TOF_MAX_APS, 187 .report_ap_tsf = 1, 188 .randomize_mac_addr = 1, 189 190 .ftm = { 191 .supported = 1, 192 .asap = 1, 193 .non_asap = 1, 194 .request_lci = 1, 195 .request_civicloc = 1, 196 .trigger_based = 1, 197 .non_trigger_based = 1, 198 .max_bursts_exponent = -1, /* all supported */ 199 .max_ftms_per_burst = 0, /* no limits */ 200 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 201 BIT(NL80211_CHAN_WIDTH_20) | 202 BIT(NL80211_CHAN_WIDTH_40) | 203 BIT(NL80211_CHAN_WIDTH_80), 204 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 205 BIT(NL80211_PREAMBLE_HT) | 206 BIT(NL80211_PREAMBLE_VHT) | 207 BIT(NL80211_PREAMBLE_HE), 208 }, 209 }; 210 211 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 212 enum set_key_cmd cmd, 213 struct ieee80211_vif *vif, 214 struct ieee80211_sta *sta, 215 struct ieee80211_key_conf *key); 216 217 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 218 { 219 int i; 220 221 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 222 for (i = 0; i < NUM_PHY_CTX; i++) { 223 mvm->phy_ctxts[i].id = i; 224 mvm->phy_ctxts[i].ref = 0; 225 } 226 } 227 228 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 229 const char *alpha2, 230 enum iwl_mcc_source src_id, 231 bool *changed) 232 { 233 struct ieee80211_regdomain *regd = NULL; 234 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 235 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 236 struct iwl_mcc_update_resp *resp; 237 238 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 239 240 lockdep_assert_held(&mvm->mutex); 241 242 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 243 if (IS_ERR_OR_NULL(resp)) { 244 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 245 PTR_ERR_OR_ZERO(resp)); 246 goto out; 247 } 248 249 if (changed) { 250 u32 status = le32_to_cpu(resp->status); 251 252 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 253 status == MCC_RESP_ILLEGAL); 254 } 255 256 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 257 __le32_to_cpu(resp->n_channels), 258 resp->channels, 259 __le16_to_cpu(resp->mcc), 260 __le16_to_cpu(resp->geo_info), 261 __le16_to_cpu(resp->cap)); 262 /* Store the return source id */ 263 src_id = resp->source_id; 264 kfree(resp); 265 if (IS_ERR_OR_NULL(regd)) { 266 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 267 PTR_ERR_OR_ZERO(regd)); 268 goto out; 269 } 270 271 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 272 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 273 mvm->lar_regdom_set = true; 274 mvm->mcc_src = src_id; 275 276 out: 277 return regd; 278 } 279 280 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 281 { 282 bool changed; 283 struct ieee80211_regdomain *regd; 284 285 if (!iwl_mvm_is_lar_supported(mvm)) 286 return; 287 288 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 289 if (!IS_ERR_OR_NULL(regd)) { 290 /* only update the regulatory core if changed */ 291 if (changed) 292 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 293 294 kfree(regd); 295 } 296 } 297 298 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 299 bool *changed) 300 { 301 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 302 iwl_mvm_is_wifi_mcc_supported(mvm) ? 303 MCC_SOURCE_GET_CURRENT : 304 MCC_SOURCE_OLD_FW, changed); 305 } 306 307 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) 308 { 309 enum iwl_mcc_source used_src; 310 struct ieee80211_regdomain *regd; 311 int ret; 312 bool changed; 313 const struct ieee80211_regdomain *r = 314 rtnl_dereference(mvm->hw->wiphy->regd); 315 316 if (!r) 317 return -ENOENT; 318 319 /* save the last source in case we overwrite it below */ 320 used_src = mvm->mcc_src; 321 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 322 /* Notify the firmware we support wifi location updates */ 323 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 324 if (!IS_ERR_OR_NULL(regd)) 325 kfree(regd); 326 } 327 328 /* Now set our last stored MCC and source */ 329 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 330 &changed); 331 if (IS_ERR_OR_NULL(regd)) 332 return -EIO; 333 334 /* update cfg80211 if the regdomain was changed */ 335 if (changed) 336 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd); 337 else 338 ret = 0; 339 340 kfree(regd); 341 return ret; 342 } 343 344 static const u8 he_if_types_ext_capa_sta[] = { 345 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 346 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 347 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF, 348 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 349 }; 350 351 static const struct wiphy_iftype_ext_capab he_iftypes_ext_capa[] = { 352 { 353 .iftype = NL80211_IFTYPE_STATION, 354 .extended_capabilities = he_if_types_ext_capa_sta, 355 .extended_capabilities_mask = he_if_types_ext_capa_sta, 356 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 357 }, 358 }; 359 360 static int 361 iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 362 { 363 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 364 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 365 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 366 return 0; 367 } 368 369 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 370 { 371 struct ieee80211_hw *hw = mvm->hw; 372 int num_mac, ret, i; 373 static const u32 mvm_ciphers[] = { 374 WLAN_CIPHER_SUITE_WEP40, 375 WLAN_CIPHER_SUITE_WEP104, 376 WLAN_CIPHER_SUITE_TKIP, 377 WLAN_CIPHER_SUITE_CCMP, 378 }; 379 #ifdef CONFIG_PM_SLEEP 380 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 381 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 382 #endif 383 384 /* Tell mac80211 our characteristics */ 385 ieee80211_hw_set(hw, SIGNAL_DBM); 386 ieee80211_hw_set(hw, SPECTRUM_MGMT); 387 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 388 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 389 ieee80211_hw_set(hw, SUPPORTS_PS); 390 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 391 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 392 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 393 ieee80211_hw_set(hw, CONNECTION_MONITOR); 394 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 395 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 396 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 397 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 398 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 399 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 400 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 401 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 402 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 403 /* 404 * On older devices, enabling TX A-MSDU occasionally leads to 405 * something getting messed up, the command read from the FIFO 406 * gets out of sync and isn't a TX command, so that we have an 407 * assert EDC. 408 * 409 * It's not clear where the bug is, but since we didn't used to 410 * support A-MSDU until moving the mac80211 iTXQs, just leave it 411 * for older devices. We also don't see this issue on any newer 412 * devices. 413 */ 414 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 415 ieee80211_hw_set(hw, TX_AMSDU); 416 ieee80211_hw_set(hw, TX_FRAG_LIST); 417 418 if (iwl_mvm_has_tlc_offload(mvm)) { 419 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 420 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 421 } 422 423 if (iwl_mvm_has_new_rx_api(mvm)) 424 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 425 426 if (fw_has_capa(&mvm->fw->ucode_capa, 427 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 428 ieee80211_hw_set(hw, AP_LINK_PS); 429 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 430 /* 431 * we absolutely need this for the new TX API since that comes 432 * with many more queues than the current code can deal with 433 * for station powersave 434 */ 435 return -EINVAL; 436 } 437 438 if (mvm->trans->num_rx_queues > 1) 439 ieee80211_hw_set(hw, USES_RSS); 440 441 if (mvm->trans->max_skb_frags) 442 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 443 444 hw->queues = IEEE80211_MAX_QUEUES; 445 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 446 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 447 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 448 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 449 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 450 451 hw->radiotap_timestamp.units_pos = 452 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 453 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 454 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 455 hw->radiotap_timestamp.accuracy = 22; 456 457 if (!iwl_mvm_has_tlc_offload(mvm)) 458 hw->rate_control_algorithm = RS_NAME; 459 460 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 461 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 462 hw->max_tx_fragments = mvm->trans->max_skb_frags; 463 464 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 465 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 466 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 467 hw->wiphy->cipher_suites = mvm->ciphers; 468 469 if (iwl_mvm_has_new_rx_api(mvm)) { 470 mvm->ciphers[hw->wiphy->n_cipher_suites] = 471 WLAN_CIPHER_SUITE_GCMP; 472 hw->wiphy->n_cipher_suites++; 473 mvm->ciphers[hw->wiphy->n_cipher_suites] = 474 WLAN_CIPHER_SUITE_GCMP_256; 475 hw->wiphy->n_cipher_suites++; 476 } 477 478 /* Enable 11w if software crypto is not enabled (as the 479 * firmware will interpret some mgmt packets, so enabling it 480 * with software crypto isn't safe). 481 */ 482 if (!iwlwifi_mod_params.swcrypto) { 483 ieee80211_hw_set(hw, MFP_CAPABLE); 484 mvm->ciphers[hw->wiphy->n_cipher_suites] = 485 WLAN_CIPHER_SUITE_AES_CMAC; 486 hw->wiphy->n_cipher_suites++; 487 if (iwl_mvm_has_new_rx_api(mvm)) { 488 mvm->ciphers[hw->wiphy->n_cipher_suites] = 489 WLAN_CIPHER_SUITE_BIP_GMAC_128; 490 hw->wiphy->n_cipher_suites++; 491 mvm->ciphers[hw->wiphy->n_cipher_suites] = 492 WLAN_CIPHER_SUITE_BIP_GMAC_256; 493 hw->wiphy->n_cipher_suites++; 494 } 495 } 496 497 /* currently FW API supports only one optional cipher scheme */ 498 if (mvm->fw->cs[0].cipher) { 499 const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0]; 500 struct ieee80211_cipher_scheme *cs = &mvm->cs[0]; 501 502 mvm->hw->n_cipher_schemes = 1; 503 504 cs->cipher = le32_to_cpu(fwcs->cipher); 505 cs->iftype = BIT(NL80211_IFTYPE_STATION); 506 cs->hdr_len = fwcs->hdr_len; 507 cs->pn_len = fwcs->pn_len; 508 cs->pn_off = fwcs->pn_off; 509 cs->key_idx_off = fwcs->key_idx_off; 510 cs->key_idx_mask = fwcs->key_idx_mask; 511 cs->key_idx_shift = fwcs->key_idx_shift; 512 cs->mic_len = fwcs->mic_len; 513 514 mvm->hw->cipher_schemes = mvm->cs; 515 mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher; 516 hw->wiphy->n_cipher_suites++; 517 } 518 519 if (fw_has_capa(&mvm->fw->ucode_capa, 520 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 521 wiphy_ext_feature_set(hw->wiphy, 522 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 523 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 524 } 525 526 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 527 hw->wiphy->features |= 528 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 529 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 530 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 531 532 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 533 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 534 hw->chanctx_data_size = sizeof(u16); 535 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 536 537 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 538 BIT(NL80211_IFTYPE_P2P_CLIENT) | 539 BIT(NL80211_IFTYPE_AP) | 540 BIT(NL80211_IFTYPE_P2P_GO) | 541 BIT(NL80211_IFTYPE_P2P_DEVICE) | 542 BIT(NL80211_IFTYPE_ADHOC); 543 544 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 545 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 546 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 547 548 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 549 if (iwl_mvm_is_lar_supported(mvm)) 550 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 551 else 552 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 553 REGULATORY_DISABLE_BEACON_HINTS; 554 555 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 556 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 557 558 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 559 hw->wiphy->n_iface_combinations = 560 ARRAY_SIZE(iwl_mvm_iface_combinations); 561 562 hw->wiphy->max_remain_on_channel_duration = 10000; 563 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 564 565 /* Extract MAC address */ 566 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 567 hw->wiphy->addresses = mvm->addresses; 568 hw->wiphy->n_addresses = 1; 569 570 /* Extract additional MAC addresses if available */ 571 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 572 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 573 574 for (i = 1; i < num_mac; i++) { 575 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 576 ETH_ALEN); 577 mvm->addresses[i].addr[5]++; 578 hw->wiphy->n_addresses++; 579 } 580 581 iwl_mvm_reset_phy_ctxts(mvm); 582 583 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 584 585 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 586 587 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 588 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 589 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 590 591 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 592 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 593 else 594 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 595 596 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 597 hw->wiphy->bands[NL80211_BAND_2GHZ] = 598 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 599 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 600 hw->wiphy->bands[NL80211_BAND_5GHZ] = 601 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 602 603 if (fw_has_capa(&mvm->fw->ucode_capa, 604 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 605 fw_has_api(&mvm->fw->ucode_capa, 606 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 607 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 608 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 609 } 610 611 hw->wiphy->hw_version = mvm->trans->hw_id; 612 613 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 614 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 615 else 616 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 617 618 hw->wiphy->max_sched_scan_reqs = 1; 619 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 620 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 621 /* we create the 802.11 header and zero length SSID IE. */ 622 hw->wiphy->max_sched_scan_ie_len = 623 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 624 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 625 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 626 627 /* 628 * the firmware uses u8 for num of iterations, but 0xff is saved for 629 * infinite loop, so the maximum number of iterations is actually 254. 630 */ 631 hw->wiphy->max_sched_scan_plan_iterations = 254; 632 633 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 634 NL80211_FEATURE_LOW_PRIORITY_SCAN | 635 NL80211_FEATURE_P2P_GO_OPPPS | 636 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 637 NL80211_FEATURE_DYNAMIC_SMPS | 638 NL80211_FEATURE_STATIC_SMPS | 639 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 640 641 if (fw_has_capa(&mvm->fw->ucode_capa, 642 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 643 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 644 if (fw_has_capa(&mvm->fw->ucode_capa, 645 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 646 hw->wiphy->features |= NL80211_FEATURE_QUIET; 647 648 if (fw_has_capa(&mvm->fw->ucode_capa, 649 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 650 hw->wiphy->features |= 651 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 652 653 if (fw_has_capa(&mvm->fw->ucode_capa, 654 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 655 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 656 657 if (fw_has_api(&mvm->fw->ucode_capa, 658 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 659 wiphy_ext_feature_set(hw->wiphy, 660 NL80211_EXT_FEATURE_SCAN_START_TIME); 661 wiphy_ext_feature_set(hw->wiphy, 662 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 663 wiphy_ext_feature_set(hw->wiphy, 664 NL80211_EXT_FEATURE_SET_SCAN_DWELL); 665 } 666 667 if (iwl_mvm_is_oce_supported(mvm)) { 668 wiphy_ext_feature_set(hw->wiphy, 669 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 670 wiphy_ext_feature_set(hw->wiphy, 671 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 672 wiphy_ext_feature_set(hw->wiphy, 673 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 674 wiphy_ext_feature_set(hw->wiphy, 675 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 676 } 677 678 if (mvm->nvm_data->sku_cap_11ax_enable && 679 !iwlwifi_mod_params.disable_11ax) { 680 hw->wiphy->iftype_ext_capab = he_iftypes_ext_capa; 681 hw->wiphy->num_iftype_ext_capab = 682 ARRAY_SIZE(he_iftypes_ext_capa); 683 684 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 685 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 686 } 687 688 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 689 690 #ifdef CONFIG_PM_SLEEP 691 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 692 mvm->trans->ops->d3_suspend && 693 mvm->trans->ops->d3_resume && 694 device_can_wakeup(mvm->trans->dev)) { 695 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 696 WIPHY_WOWLAN_DISCONNECT | 697 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 698 WIPHY_WOWLAN_RFKILL_RELEASE | 699 WIPHY_WOWLAN_NET_DETECT; 700 if (!iwlwifi_mod_params.swcrypto) 701 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 702 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 703 WIPHY_WOWLAN_4WAY_HANDSHAKE; 704 705 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 706 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 707 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 708 mvm->wowlan.max_nd_match_sets = 709 iwl_umac_scan_get_max_profiles(mvm->fw); 710 hw->wiphy->wowlan = &mvm->wowlan; 711 } 712 #endif 713 714 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 715 /* assign default bcast filtering configuration */ 716 mvm->bcast_filters = iwl_mvm_default_bcast_filters; 717 #endif 718 719 ret = iwl_mvm_leds_init(mvm); 720 if (ret) 721 return ret; 722 723 if (fw_has_capa(&mvm->fw->ucode_capa, 724 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 725 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 726 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 727 ieee80211_hw_set(hw, TDLS_WIDER_BW); 728 } 729 730 if (fw_has_capa(&mvm->fw->ucode_capa, 731 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 732 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 733 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 734 } 735 736 hw->netdev_features |= mvm->cfg->features; 737 if (!iwl_mvm_is_csum_supported(mvm)) { 738 hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS | 739 NETIF_F_RXCSUM); 740 /* We may support SW TX CSUM */ 741 if (IWL_MVM_SW_TX_CSUM_OFFLOAD) 742 hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS; 743 } 744 745 if (mvm->cfg->vht_mu_mimo_supported) 746 wiphy_ext_feature_set(hw->wiphy, 747 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 748 749 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 750 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 751 752 ret = ieee80211_register_hw(mvm->hw); 753 if (ret) { 754 iwl_mvm_leds_exit(mvm); 755 } 756 757 return ret; 758 } 759 760 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 761 struct ieee80211_sta *sta) 762 { 763 if (likely(sta)) { 764 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 765 return; 766 } else { 767 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 768 return; 769 } 770 771 ieee80211_free_txskb(mvm->hw, skb); 772 } 773 774 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 775 struct ieee80211_tx_control *control, 776 struct sk_buff *skb) 777 { 778 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 779 struct ieee80211_sta *sta = control->sta; 780 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 781 struct ieee80211_hdr *hdr = (void *)skb->data; 782 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 783 IEEE80211_TX_CTL_TX_OFFCHAN; 784 785 if (iwl_mvm_is_radio_killed(mvm)) { 786 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 787 goto drop; 788 } 789 790 if (offchannel && 791 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 792 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 793 goto drop; 794 795 /* treat non-bufferable MMPDUs on AP interfaces as broadcast */ 796 if ((info->control.vif->type == NL80211_IFTYPE_AP || 797 info->control.vif->type == NL80211_IFTYPE_ADHOC) && 798 ieee80211_is_mgmt(hdr->frame_control) && 799 !ieee80211_is_bufferable_mmpdu(hdr->frame_control)) 800 sta = NULL; 801 802 /* If there is no sta, and it's not offchannel - send through AP */ 803 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 804 !offchannel) { 805 struct iwl_mvm_vif *mvmvif = 806 iwl_mvm_vif_from_mac80211(info->control.vif); 807 u8 ap_sta_id = READ_ONCE(mvmvif->ap_sta_id); 808 809 if (ap_sta_id < IWL_MVM_STATION_COUNT) { 810 /* mac80211 holds rcu read lock */ 811 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 812 if (IS_ERR_OR_NULL(sta)) 813 goto drop; 814 } 815 } 816 817 iwl_mvm_tx_skb(mvm, skb, sta); 818 return; 819 drop: 820 ieee80211_free_txskb(hw, skb); 821 } 822 823 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 824 { 825 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 826 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 827 struct sk_buff *skb = NULL; 828 829 /* 830 * No need for threads to be pending here, they can leave the first 831 * taker all the work. 832 * 833 * mvmtxq->tx_request logic: 834 * 835 * If 0, no one is currently TXing, set to 1 to indicate current thread 836 * will now start TX and other threads should quit. 837 * 838 * If 1, another thread is currently TXing, set to 2 to indicate to 839 * that thread that there was another request. Since that request may 840 * have raced with the check whether the queue is empty, the TXing 841 * thread should check the queue's status one more time before leaving. 842 * This check is done in order to not leave any TX hanging in the queue 843 * until the next TX invocation (which may not even happen). 844 * 845 * If 2, another thread is currently TXing, and it will already double 846 * check the queue, so do nothing. 847 */ 848 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 849 return; 850 851 rcu_read_lock(); 852 do { 853 while (likely(!mvmtxq->stopped && 854 (mvm->trans->system_pm_mode == 855 IWL_PLAT_PM_MODE_DISABLED))) { 856 skb = ieee80211_tx_dequeue(hw, txq); 857 858 if (!skb) { 859 if (txq->sta) 860 IWL_DEBUG_TX(mvm, 861 "TXQ of sta %pM tid %d is now empty\n", 862 txq->sta->addr, 863 txq->tid); 864 break; 865 } 866 867 iwl_mvm_tx_skb(mvm, skb, txq->sta); 868 } 869 } while (atomic_dec_return(&mvmtxq->tx_request)); 870 rcu_read_unlock(); 871 } 872 873 static void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 874 struct ieee80211_txq *txq) 875 { 876 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 877 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 878 879 /* 880 * Please note that racing is handled very carefully here: 881 * mvmtxq->txq_id is updated during allocation, and mvmtxq->list is 882 * deleted afterwards. 883 * This means that if: 884 * mvmtxq->txq_id != INVALID_QUEUE && list_empty(&mvmtxq->list): 885 * queue is allocated and we can TX. 886 * mvmtxq->txq_id != INVALID_QUEUE && !list_empty(&mvmtxq->list): 887 * a race, should defer the frame. 888 * mvmtxq->txq_id == INVALID_QUEUE && list_empty(&mvmtxq->list): 889 * need to allocate the queue and defer the frame. 890 * mvmtxq->txq_id == INVALID_QUEUE && !list_empty(&mvmtxq->list): 891 * queue is already scheduled for allocation, no need to allocate, 892 * should defer the frame. 893 */ 894 895 /* If the queue is allocated TX and return. */ 896 if (!txq->sta || mvmtxq->txq_id != IWL_MVM_INVALID_QUEUE) { 897 /* 898 * Check that list is empty to avoid a race where txq_id is 899 * already updated, but the queue allocation work wasn't 900 * finished 901 */ 902 if (unlikely(txq->sta && !list_empty(&mvmtxq->list))) 903 return; 904 905 iwl_mvm_mac_itxq_xmit(hw, txq); 906 return; 907 } 908 909 /* The list is being deleted only after the queue is fully allocated. */ 910 if (!list_empty(&mvmtxq->list)) 911 return; 912 913 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 914 schedule_work(&mvm->add_stream_wk); 915 } 916 917 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 918 do { \ 919 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 920 break; \ 921 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 922 } while (0) 923 924 static void 925 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 926 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 927 enum ieee80211_ampdu_mlme_action action) 928 { 929 struct iwl_fw_dbg_trigger_tlv *trig; 930 struct iwl_fw_dbg_trigger_ba *ba_trig; 931 932 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 933 FW_DBG_TRIGGER_BA); 934 if (!trig) 935 return; 936 937 ba_trig = (void *)trig->data; 938 939 switch (action) { 940 case IEEE80211_AMPDU_TX_OPERATIONAL: { 941 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 942 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 943 944 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 945 "TX AGG START: MAC %pM tid %d ssn %d\n", 946 sta->addr, tid, tid_data->ssn); 947 break; 948 } 949 case IEEE80211_AMPDU_TX_STOP_CONT: 950 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 951 "TX AGG STOP: MAC %pM tid %d\n", 952 sta->addr, tid); 953 break; 954 case IEEE80211_AMPDU_RX_START: 955 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 956 "RX AGG START: MAC %pM tid %d ssn %d\n", 957 sta->addr, tid, rx_ba_ssn); 958 break; 959 case IEEE80211_AMPDU_RX_STOP: 960 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 961 "RX AGG STOP: MAC %pM tid %d\n", 962 sta->addr, tid); 963 break; 964 default: 965 break; 966 } 967 } 968 969 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 970 struct ieee80211_vif *vif, 971 struct ieee80211_ampdu_params *params) 972 { 973 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 974 int ret; 975 struct ieee80211_sta *sta = params->sta; 976 enum ieee80211_ampdu_mlme_action action = params->action; 977 u16 tid = params->tid; 978 u16 *ssn = ¶ms->ssn; 979 u16 buf_size = params->buf_size; 980 bool amsdu = params->amsdu; 981 u16 timeout = params->timeout; 982 983 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 984 sta->addr, tid, action); 985 986 if (!(mvm->nvm_data->sku_cap_11n_enable)) 987 return -EACCES; 988 989 mutex_lock(&mvm->mutex); 990 991 switch (action) { 992 case IEEE80211_AMPDU_RX_START: 993 if (iwl_mvm_vif_from_mac80211(vif)->ap_sta_id == 994 iwl_mvm_sta_from_mac80211(sta)->sta_id) { 995 struct iwl_mvm_vif *mvmvif; 996 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 997 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 998 999 mdata->opened_rx_ba_sessions = true; 1000 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1001 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 1002 } 1003 if (!iwl_enable_rx_ampdu()) { 1004 ret = -EINVAL; 1005 break; 1006 } 1007 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 1008 timeout); 1009 break; 1010 case IEEE80211_AMPDU_RX_STOP: 1011 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 1012 timeout); 1013 break; 1014 case IEEE80211_AMPDU_TX_START: 1015 if (!iwl_enable_tx_ampdu()) { 1016 ret = -EINVAL; 1017 break; 1018 } 1019 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1020 break; 1021 case IEEE80211_AMPDU_TX_STOP_CONT: 1022 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1023 break; 1024 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1025 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1026 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1027 break; 1028 case IEEE80211_AMPDU_TX_OPERATIONAL: 1029 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1030 buf_size, amsdu); 1031 break; 1032 default: 1033 WARN_ON_ONCE(1); 1034 ret = -EINVAL; 1035 break; 1036 } 1037 1038 if (!ret) { 1039 u16 rx_ba_ssn = 0; 1040 1041 if (action == IEEE80211_AMPDU_RX_START) 1042 rx_ba_ssn = *ssn; 1043 1044 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1045 rx_ba_ssn, action); 1046 } 1047 mutex_unlock(&mvm->mutex); 1048 1049 return ret; 1050 } 1051 1052 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1053 struct ieee80211_vif *vif) 1054 { 1055 struct iwl_mvm *mvm = data; 1056 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1057 1058 mvmvif->uploaded = false; 1059 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1060 1061 spin_lock_bh(&mvm->time_event_lock); 1062 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1063 spin_unlock_bh(&mvm->time_event_lock); 1064 1065 mvmvif->phy_ctxt = NULL; 1066 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1067 memset(&mvmvif->probe_resp_data, 0, sizeof(mvmvif->probe_resp_data)); 1068 } 1069 1070 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1071 { 1072 iwl_mvm_stop_device(mvm); 1073 1074 mvm->cur_aid = 0; 1075 1076 mvm->scan_status = 0; 1077 mvm->ps_disabled = false; 1078 mvm->rfkill_safe_init_done = false; 1079 1080 /* just in case one was running */ 1081 iwl_mvm_cleanup_roc_te(mvm); 1082 ieee80211_remain_on_channel_expired(mvm->hw); 1083 1084 iwl_mvm_ftm_restart(mvm); 1085 1086 /* 1087 * cleanup all interfaces, even inactive ones, as some might have 1088 * gone down during the HW restart 1089 */ 1090 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1091 1092 mvm->p2p_device_vif = NULL; 1093 1094 iwl_mvm_reset_phy_ctxts(mvm); 1095 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1096 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1097 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1098 1099 ieee80211_wake_queues(mvm->hw); 1100 1101 mvm->vif_count = 0; 1102 mvm->rx_ba_sessions = 0; 1103 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1104 mvm->monitor_on = false; 1105 1106 /* keep statistics ticking */ 1107 iwl_mvm_accu_radio_stats(mvm); 1108 } 1109 1110 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1111 { 1112 int ret; 1113 1114 lockdep_assert_held(&mvm->mutex); 1115 1116 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1117 /* 1118 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1119 * so later code will - from now on - see that we're doing it. 1120 */ 1121 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1122 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1123 /* Clean up some internal and mac80211 state on restart */ 1124 iwl_mvm_restart_cleanup(mvm); 1125 } 1126 ret = iwl_mvm_up(mvm); 1127 1128 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1129 NULL); 1130 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1131 NULL); 1132 1133 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1134 /* Something went wrong - we need to finish some cleanup 1135 * that normally iwl_mvm_mac_restart_complete() below 1136 * would do. 1137 */ 1138 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1139 } 1140 1141 return ret; 1142 } 1143 1144 static int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1145 { 1146 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1147 int ret; 1148 1149 mutex_lock(&mvm->mutex); 1150 ret = __iwl_mvm_mac_start(mvm); 1151 mutex_unlock(&mvm->mutex); 1152 1153 return ret; 1154 } 1155 1156 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1157 { 1158 int ret; 1159 1160 mutex_lock(&mvm->mutex); 1161 1162 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1163 1164 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1165 if (ret) 1166 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1167 ret); 1168 1169 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1170 1171 /* 1172 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1173 * of packets the FW sent out, so we must reconnect. 1174 */ 1175 iwl_mvm_teardown_tdls_peers(mvm); 1176 1177 mutex_unlock(&mvm->mutex); 1178 } 1179 1180 static void 1181 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1182 enum ieee80211_reconfig_type reconfig_type) 1183 { 1184 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1185 1186 switch (reconfig_type) { 1187 case IEEE80211_RECONFIG_TYPE_RESTART: 1188 iwl_mvm_restart_complete(mvm); 1189 break; 1190 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1191 break; 1192 } 1193 } 1194 1195 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1196 { 1197 lockdep_assert_held(&mvm->mutex); 1198 1199 /* firmware counters are obviously reset now, but we shouldn't 1200 * partially track so also clear the fw_reset_accu counters. 1201 */ 1202 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1203 1204 /* async_handlers_wk is now blocked */ 1205 1206 /* 1207 * The work item could be running or queued if the 1208 * ROC time event stops just as we get here. 1209 */ 1210 flush_work(&mvm->roc_done_wk); 1211 1212 iwl_mvm_stop_device(mvm); 1213 1214 iwl_mvm_async_handlers_purge(mvm); 1215 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1216 1217 /* the fw is stopped, the aux sta is dead: clean up driver state */ 1218 iwl_mvm_del_aux_sta(mvm); 1219 1220 /* 1221 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1222 * hw (as restart_complete() won't be called in this case) and mac80211 1223 * won't execute the restart. 1224 * But make sure to cleanup interfaces that have gone down before/during 1225 * HW restart was requested. 1226 */ 1227 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1228 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1229 &mvm->status)) 1230 ieee80211_iterate_interfaces(mvm->hw, 0, 1231 iwl_mvm_cleanup_iterator, mvm); 1232 1233 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1234 * make sure there's nothing left there and warn if any is found. 1235 */ 1236 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1237 int i; 1238 1239 for (i = 0; i < mvm->max_scans; i++) { 1240 if (WARN_ONCE(mvm->scan_uid_status[i], 1241 "UMAC scan UID %d status was not cleaned\n", 1242 i)) 1243 mvm->scan_uid_status[i] = 0; 1244 } 1245 } 1246 } 1247 1248 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1249 { 1250 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1251 1252 flush_work(&mvm->async_handlers_wk); 1253 flush_work(&mvm->add_stream_wk); 1254 1255 /* 1256 * Lock and clear the firmware running bit here already, so that 1257 * new commands coming in elsewhere, e.g. from debugfs, will not 1258 * be able to proceed. This is important here because one of those 1259 * debugfs files causes the firmware dump to be triggered, and if we 1260 * don't stop debugfs accesses before canceling that it could be 1261 * retriggered after we flush it but before we've cleared the bit. 1262 */ 1263 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1264 1265 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1266 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1267 1268 mutex_lock(&mvm->mutex); 1269 __iwl_mvm_mac_stop(mvm); 1270 mutex_unlock(&mvm->mutex); 1271 1272 /* 1273 * The worker might have been waiting for the mutex, let it run and 1274 * discover that its list is now empty. 1275 */ 1276 cancel_work_sync(&mvm->async_handlers_wk); 1277 } 1278 1279 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1280 { 1281 u16 i; 1282 1283 lockdep_assert_held(&mvm->mutex); 1284 1285 for (i = 0; i < NUM_PHY_CTX; i++) 1286 if (!mvm->phy_ctxts[i].ref) 1287 return &mvm->phy_ctxts[i]; 1288 1289 IWL_ERR(mvm, "No available PHY context\n"); 1290 return NULL; 1291 } 1292 1293 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1294 s16 tx_power) 1295 { 1296 int len; 1297 union { 1298 struct iwl_dev_tx_power_cmd v5; 1299 struct iwl_dev_tx_power_cmd_v4 v4; 1300 } cmd = { 1301 .v5.v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1302 .v5.v3.mac_context_id = 1303 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1304 .v5.v3.pwr_restriction = cpu_to_le16(8 * tx_power), 1305 }; 1306 1307 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1308 cmd.v5.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1309 1310 if (fw_has_api(&mvm->fw->ucode_capa, 1311 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1312 len = sizeof(cmd.v5); 1313 else if (fw_has_capa(&mvm->fw->ucode_capa, 1314 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1315 len = sizeof(cmd.v4); 1316 else 1317 len = sizeof(cmd.v4.v3); 1318 1319 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); 1320 } 1321 1322 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1323 struct ieee80211_vif *vif) 1324 { 1325 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1326 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1327 int ret; 1328 1329 mutex_lock(&mvm->mutex); 1330 1331 if (mvmvif->csa_failed) { 1332 mvmvif->csa_failed = false; 1333 ret = -EIO; 1334 goto out_unlock; 1335 } 1336 1337 if (vif->type == NL80211_IFTYPE_STATION) { 1338 struct iwl_mvm_sta *mvmsta; 1339 1340 mvmvif->csa_bcn_pending = false; 1341 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 1342 mvmvif->ap_sta_id); 1343 1344 if (WARN_ON(!mvmsta)) { 1345 ret = -EIO; 1346 goto out_unlock; 1347 } 1348 1349 if (!fw_has_capa(&mvm->fw->ucode_capa, 1350 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1351 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1352 1353 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1354 1355 if (!fw_has_capa(&mvm->fw->ucode_capa, 1356 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1357 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1358 if (ret) 1359 goto out_unlock; 1360 1361 iwl_mvm_stop_session_protection(mvm, vif); 1362 } 1363 } 1364 1365 mvmvif->ps_disabled = false; 1366 1367 ret = iwl_mvm_power_update_ps(mvm); 1368 1369 out_unlock: 1370 mutex_unlock(&mvm->mutex); 1371 1372 return ret; 1373 } 1374 1375 static void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1376 struct ieee80211_vif *vif) 1377 { 1378 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1379 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1380 struct iwl_chan_switch_te_cmd cmd = { 1381 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1382 mvmvif->color)), 1383 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1384 }; 1385 1386 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1387 1388 mutex_lock(&mvm->mutex); 1389 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1390 WIDE_ID(MAC_CONF_GROUP, 1391 CHANNEL_SWITCH_TIME_EVENT_CMD), 1392 0, sizeof(cmd), &cmd)); 1393 mutex_unlock(&mvm->mutex); 1394 1395 WARN_ON(iwl_mvm_post_channel_switch(hw, vif)); 1396 } 1397 1398 static void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1399 { 1400 struct iwl_mvm *mvm; 1401 struct iwl_mvm_vif *mvmvif; 1402 struct ieee80211_vif *vif; 1403 1404 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1405 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1406 mvm = mvmvif->mvm; 1407 1408 iwl_mvm_abort_channel_switch(mvm->hw, vif); 1409 ieee80211_chswitch_done(vif, false); 1410 } 1411 1412 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1413 struct ieee80211_vif *vif) 1414 { 1415 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1416 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1417 int ret; 1418 1419 mvmvif->mvm = mvm; 1420 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1421 1422 /* 1423 * Not much to do here. The stack will not allow interface 1424 * types or combinations that we didn't advertise, so we 1425 * don't really have to check the types. 1426 */ 1427 1428 mutex_lock(&mvm->mutex); 1429 1430 /* make sure that beacon statistics don't go backwards with FW reset */ 1431 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1432 mvmvif->beacon_stats.accu_num_beacons += 1433 mvmvif->beacon_stats.num_beacons; 1434 1435 /* Allocate resources for the MAC context, and add it to the fw */ 1436 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1437 if (ret) 1438 goto out_unlock; 1439 1440 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1441 1442 /* Counting number of interfaces is needed for legacy PM */ 1443 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1444 mvm->vif_count++; 1445 1446 /* 1447 * The AP binding flow can be done only after the beacon 1448 * template is configured (which happens only in the mac80211 1449 * start_ap() flow), and adding the broadcast station can happen 1450 * only after the binding. 1451 * In addition, since modifying the MAC before adding a bcast 1452 * station is not allowed by the FW, delay the adding of MAC context to 1453 * the point where we can also add the bcast station. 1454 * In short: there's not much we can do at this point, other than 1455 * allocating resources :) 1456 */ 1457 if (vif->type == NL80211_IFTYPE_AP || 1458 vif->type == NL80211_IFTYPE_ADHOC) { 1459 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1460 if (ret) { 1461 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1462 goto out_release; 1463 } 1464 1465 /* 1466 * Only queue for this station is the mcast queue, 1467 * which shouldn't be in TFD mask anyway 1468 */ 1469 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta, 1470 0, vif->type, 1471 IWL_STA_MULTICAST); 1472 if (ret) 1473 goto out_release; 1474 1475 iwl_mvm_vif_dbgfs_register(mvm, vif); 1476 goto out_unlock; 1477 } 1478 1479 mvmvif->features |= hw->netdev_features; 1480 1481 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1482 if (ret) 1483 goto out_release; 1484 1485 ret = iwl_mvm_power_update_mac(mvm); 1486 if (ret) 1487 goto out_remove_mac; 1488 1489 /* beacon filtering */ 1490 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1491 if (ret) 1492 goto out_remove_mac; 1493 1494 if (!mvm->bf_allowed_vif && 1495 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1496 mvm->bf_allowed_vif = mvmvif; 1497 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1498 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1499 } 1500 1501 /* 1502 * P2P_DEVICE interface does not have a channel context assigned to it, 1503 * so a dedicated PHY context is allocated to it and the corresponding 1504 * MAC context is bound to it at this stage. 1505 */ 1506 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1507 1508 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1509 if (!mvmvif->phy_ctxt) { 1510 ret = -ENOSPC; 1511 goto out_free_bf; 1512 } 1513 1514 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 1515 ret = iwl_mvm_binding_add_vif(mvm, vif); 1516 if (ret) 1517 goto out_unref_phy; 1518 1519 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif); 1520 if (ret) 1521 goto out_unbind; 1522 1523 /* Save a pointer to p2p device vif, so it can later be used to 1524 * update the p2p device MAC when a GO is started/stopped */ 1525 mvm->p2p_device_vif = vif; 1526 } 1527 1528 iwl_mvm_tcm_add_vif(mvm, vif); 1529 INIT_DELAYED_WORK(&mvmvif->csa_work, 1530 iwl_mvm_channel_switch_disconnect_wk); 1531 1532 if (vif->type == NL80211_IFTYPE_MONITOR) 1533 mvm->monitor_on = true; 1534 1535 iwl_mvm_vif_dbgfs_register(mvm, vif); 1536 goto out_unlock; 1537 1538 out_unbind: 1539 iwl_mvm_binding_remove_vif(mvm, vif); 1540 out_unref_phy: 1541 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1542 out_free_bf: 1543 if (mvm->bf_allowed_vif == mvmvif) { 1544 mvm->bf_allowed_vif = NULL; 1545 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1546 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1547 } 1548 out_remove_mac: 1549 mvmvif->phy_ctxt = NULL; 1550 iwl_mvm_mac_ctxt_remove(mvm, vif); 1551 out_release: 1552 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1553 mvm->vif_count--; 1554 out_unlock: 1555 mutex_unlock(&mvm->mutex); 1556 1557 return ret; 1558 } 1559 1560 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1561 struct ieee80211_vif *vif) 1562 { 1563 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1564 /* 1565 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1566 * We assume here that all the packets sent to the OFFCHANNEL 1567 * queue are sent in ROC session. 1568 */ 1569 flush_work(&mvm->roc_done_wk); 1570 } 1571 } 1572 1573 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1574 struct ieee80211_vif *vif) 1575 { 1576 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1577 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1578 struct iwl_probe_resp_data *probe_data; 1579 1580 iwl_mvm_prepare_mac_removal(mvm, vif); 1581 1582 if (!(vif->type == NL80211_IFTYPE_AP || 1583 vif->type == NL80211_IFTYPE_ADHOC)) 1584 iwl_mvm_tcm_rm_vif(mvm, vif); 1585 1586 mutex_lock(&mvm->mutex); 1587 1588 probe_data = rcu_dereference_protected(mvmvif->probe_resp_data, 1589 lockdep_is_held(&mvm->mutex)); 1590 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1591 if (probe_data) 1592 kfree_rcu(probe_data, rcu_head); 1593 1594 if (mvm->bf_allowed_vif == mvmvif) { 1595 mvm->bf_allowed_vif = NULL; 1596 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1597 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1598 } 1599 1600 if (vif->bss_conf.ftm_responder) 1601 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1602 1603 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1604 1605 /* 1606 * For AP/GO interface, the tear down of the resources allocated to the 1607 * interface is be handled as part of the stop_ap flow. 1608 */ 1609 if (vif->type == NL80211_IFTYPE_AP || 1610 vif->type == NL80211_IFTYPE_ADHOC) { 1611 #ifdef CONFIG_NL80211_TESTMODE 1612 if (vif == mvm->noa_vif) { 1613 mvm->noa_vif = NULL; 1614 mvm->noa_duration = 0; 1615 } 1616 #endif 1617 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta); 1618 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1619 goto out_release; 1620 } 1621 1622 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1623 mvm->p2p_device_vif = NULL; 1624 iwl_mvm_rm_p2p_bcast_sta(mvm, vif); 1625 iwl_mvm_binding_remove_vif(mvm, vif); 1626 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1627 mvmvif->phy_ctxt = NULL; 1628 } 1629 1630 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) 1631 mvm->vif_count--; 1632 1633 iwl_mvm_power_update_mac(mvm); 1634 iwl_mvm_mac_ctxt_remove(mvm, vif); 1635 1636 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1637 1638 if (vif->type == NL80211_IFTYPE_MONITOR) 1639 mvm->monitor_on = false; 1640 1641 out_release: 1642 mutex_unlock(&mvm->mutex); 1643 } 1644 1645 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) 1646 { 1647 return 0; 1648 } 1649 1650 struct iwl_mvm_mc_iter_data { 1651 struct iwl_mvm *mvm; 1652 int port_id; 1653 }; 1654 1655 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1656 struct ieee80211_vif *vif) 1657 { 1658 struct iwl_mvm_mc_iter_data *data = _data; 1659 struct iwl_mvm *mvm = data->mvm; 1660 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1661 struct iwl_host_cmd hcmd = { 1662 .id = MCAST_FILTER_CMD, 1663 .flags = CMD_ASYNC, 1664 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1665 }; 1666 int ret, len; 1667 1668 /* if we don't have free ports, mcast frames will be dropped */ 1669 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1670 return; 1671 1672 if (vif->type != NL80211_IFTYPE_STATION || 1673 !vif->bss_conf.assoc) 1674 return; 1675 1676 cmd->port_id = data->port_id++; 1677 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1678 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1679 1680 hcmd.len[0] = len; 1681 hcmd.data[0] = cmd; 1682 1683 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1684 if (ret) 1685 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1686 } 1687 1688 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1689 { 1690 struct iwl_mvm_mc_iter_data iter_data = { 1691 .mvm = mvm, 1692 }; 1693 1694 lockdep_assert_held(&mvm->mutex); 1695 1696 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1697 return; 1698 1699 ieee80211_iterate_active_interfaces_atomic( 1700 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1701 iwl_mvm_mc_iface_iterator, &iter_data); 1702 } 1703 1704 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1705 struct netdev_hw_addr_list *mc_list) 1706 { 1707 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1708 struct iwl_mcast_filter_cmd *cmd; 1709 struct netdev_hw_addr *addr; 1710 int addr_count; 1711 bool pass_all; 1712 int len; 1713 1714 addr_count = netdev_hw_addr_list_count(mc_list); 1715 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1716 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1717 if (pass_all) 1718 addr_count = 0; 1719 1720 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1721 cmd = kzalloc(len, GFP_ATOMIC); 1722 if (!cmd) 1723 return 0; 1724 1725 if (pass_all) { 1726 cmd->pass_all = 1; 1727 return (u64)(unsigned long)cmd; 1728 } 1729 1730 netdev_hw_addr_list_for_each(addr, mc_list) { 1731 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1732 cmd->count, addr->addr); 1733 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1734 addr->addr, ETH_ALEN); 1735 cmd->count++; 1736 } 1737 1738 return (u64)(unsigned long)cmd; 1739 } 1740 1741 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1742 unsigned int changed_flags, 1743 unsigned int *total_flags, 1744 u64 multicast) 1745 { 1746 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1747 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1748 1749 mutex_lock(&mvm->mutex); 1750 1751 /* replace previous configuration */ 1752 kfree(mvm->mcast_filter_cmd); 1753 mvm->mcast_filter_cmd = cmd; 1754 1755 if (!cmd) 1756 goto out; 1757 1758 if (changed_flags & FIF_ALLMULTI) 1759 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1760 1761 if (cmd->pass_all) 1762 cmd->count = 0; 1763 1764 iwl_mvm_recalc_multicast(mvm); 1765 out: 1766 mutex_unlock(&mvm->mutex); 1767 *total_flags = 0; 1768 } 1769 1770 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1771 struct ieee80211_vif *vif, 1772 unsigned int filter_flags, 1773 unsigned int changed_flags) 1774 { 1775 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1776 1777 /* We support only filter for probe requests */ 1778 if (!(changed_flags & FIF_PROBE_REQ)) 1779 return; 1780 1781 /* Supported only for p2p client interfaces */ 1782 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || 1783 !vif->p2p) 1784 return; 1785 1786 mutex_lock(&mvm->mutex); 1787 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1788 mutex_unlock(&mvm->mutex); 1789 } 1790 1791 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1792 struct iwl_bcast_iter_data { 1793 struct iwl_mvm *mvm; 1794 struct iwl_bcast_filter_cmd *cmd; 1795 u8 current_filter; 1796 }; 1797 1798 static void 1799 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, 1800 const struct iwl_fw_bcast_filter *in_filter, 1801 struct iwl_fw_bcast_filter *out_filter) 1802 { 1803 struct iwl_fw_bcast_filter_attr *attr; 1804 int i; 1805 1806 memcpy(out_filter, in_filter, sizeof(*out_filter)); 1807 1808 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { 1809 attr = &out_filter->attrs[i]; 1810 1811 if (!attr->mask) 1812 break; 1813 1814 switch (attr->reserved1) { 1815 case cpu_to_le16(BC_FILTER_MAGIC_IP): 1816 if (vif->bss_conf.arp_addr_cnt != 1) { 1817 attr->mask = 0; 1818 continue; 1819 } 1820 1821 attr->val = vif->bss_conf.arp_addr_list[0]; 1822 break; 1823 case cpu_to_le16(BC_FILTER_MAGIC_MAC): 1824 attr->val = *(__be32 *)&vif->addr[2]; 1825 break; 1826 default: 1827 break; 1828 } 1829 attr->reserved1 = 0; 1830 out_filter->num_attrs++; 1831 } 1832 } 1833 1834 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, 1835 struct ieee80211_vif *vif) 1836 { 1837 struct iwl_bcast_iter_data *data = _data; 1838 struct iwl_mvm *mvm = data->mvm; 1839 struct iwl_bcast_filter_cmd *cmd = data->cmd; 1840 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1841 struct iwl_fw_bcast_mac *bcast_mac; 1842 int i; 1843 1844 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) 1845 return; 1846 1847 bcast_mac = &cmd->macs[mvmvif->id]; 1848 1849 /* 1850 * enable filtering only for associated stations, but not for P2P 1851 * Clients 1852 */ 1853 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || 1854 !vif->bss_conf.assoc) 1855 return; 1856 1857 bcast_mac->default_discard = 1; 1858 1859 /* copy all configured filters */ 1860 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { 1861 /* 1862 * Make sure we don't exceed our filters limit. 1863 * if there is still a valid filter to be configured, 1864 * be on the safe side and just allow bcast for this mac. 1865 */ 1866 if (WARN_ON_ONCE(data->current_filter >= 1867 ARRAY_SIZE(cmd->filters))) { 1868 bcast_mac->default_discard = 0; 1869 bcast_mac->attached_filters = 0; 1870 break; 1871 } 1872 1873 iwl_mvm_set_bcast_filter(vif, 1874 &mvm->bcast_filters[i], 1875 &cmd->filters[data->current_filter]); 1876 1877 /* skip current filter if it contains no attributes */ 1878 if (!cmd->filters[data->current_filter].num_attrs) 1879 continue; 1880 1881 /* attach the filter to current mac */ 1882 bcast_mac->attached_filters |= 1883 cpu_to_le16(BIT(data->current_filter)); 1884 1885 data->current_filter++; 1886 } 1887 } 1888 1889 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, 1890 struct iwl_bcast_filter_cmd *cmd) 1891 { 1892 struct iwl_bcast_iter_data iter_data = { 1893 .mvm = mvm, 1894 .cmd = cmd, 1895 }; 1896 1897 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) 1898 return false; 1899 1900 memset(cmd, 0, sizeof(*cmd)); 1901 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); 1902 cmd->max_macs = ARRAY_SIZE(cmd->macs); 1903 1904 #ifdef CONFIG_IWLWIFI_DEBUGFS 1905 /* use debugfs filters/macs if override is configured */ 1906 if (mvm->dbgfs_bcast_filtering.override) { 1907 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, 1908 sizeof(cmd->filters)); 1909 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, 1910 sizeof(cmd->macs)); 1911 return true; 1912 } 1913 #endif 1914 1915 /* if no filters are configured, do nothing */ 1916 if (!mvm->bcast_filters) 1917 return false; 1918 1919 /* configure and attach these filters for each associated sta vif */ 1920 ieee80211_iterate_active_interfaces( 1921 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1922 iwl_mvm_bcast_filter_iterator, &iter_data); 1923 1924 return true; 1925 } 1926 1927 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1928 { 1929 struct iwl_bcast_filter_cmd cmd; 1930 1931 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) 1932 return 0; 1933 1934 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1935 return 0; 1936 1937 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1938 sizeof(cmd), &cmd); 1939 } 1940 #else 1941 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1942 { 1943 return 0; 1944 } 1945 #endif 1946 1947 static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, 1948 struct ieee80211_vif *vif) 1949 { 1950 struct iwl_mu_group_mgmt_cmd cmd = {}; 1951 1952 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1953 WLAN_MEMBERSHIP_LEN); 1954 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1955 WLAN_USER_POSITION_LEN); 1956 1957 return iwl_mvm_send_cmd_pdu(mvm, 1958 WIDE_ID(DATA_PATH_GROUP, 1959 UPDATE_MU_GROUPS_CMD), 1960 0, sizeof(cmd), &cmd); 1961 } 1962 1963 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1964 struct ieee80211_vif *vif) 1965 { 1966 if (vif->mu_mimo_owner) { 1967 struct iwl_mu_group_mgmt_notif *notif = _data; 1968 1969 /* 1970 * MU-MIMO Group Id action frame is little endian. We treat 1971 * the data received from firmware as if it came from the 1972 * action frame, so no conversion is needed. 1973 */ 1974 ieee80211_update_mu_groups(vif, 1975 (u8 *)¬if->membership_status, 1976 (u8 *)¬if->user_position); 1977 } 1978 } 1979 1980 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1981 struct iwl_rx_cmd_buffer *rxb) 1982 { 1983 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1984 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1985 1986 ieee80211_iterate_active_interfaces_atomic( 1987 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1988 iwl_mvm_mu_mimo_iface_iterator, notif); 1989 } 1990 1991 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1992 { 1993 u8 byte_num = ppe_pos_bit / 8; 1994 u8 bit_num = ppe_pos_bit % 8; 1995 u8 residue_bits; 1996 u8 res; 1997 1998 if (bit_num <= 5) 1999 return (ppe[byte_num] >> bit_num) & 2000 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2001 2002 /* 2003 * If bit_num > 5, we have to combine bits with next byte. 2004 * Calculate how many bits we need to take from current byte (called 2005 * here "residue_bits"), and add them to bits from next byte. 2006 */ 2007 2008 residue_bits = 8 - bit_num; 2009 2010 res = (ppe[byte_num + 1] & 2011 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2012 residue_bits; 2013 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2014 2015 return res; 2016 } 2017 2018 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2019 struct ieee80211_vif *vif, u8 sta_id) 2020 { 2021 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2022 struct iwl_he_sta_context_cmd sta_ctxt_cmd = { 2023 .sta_id = sta_id, 2024 .tid_limit = IWL_MAX_TID_COUNT, 2025 .bss_color = vif->bss_conf.he_bss_color.color, 2026 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2027 .frame_time_rts_th = 2028 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2029 }; 2030 int size = fw_has_api(&mvm->fw->ucode_capa, 2031 IWL_UCODE_TLV_API_MBSSID_HE) ? 2032 sizeof(sta_ctxt_cmd) : 2033 sizeof(struct iwl_he_sta_context_cmd_v1); 2034 struct ieee80211_sta *sta; 2035 u32 flags; 2036 int i; 2037 2038 rcu_read_lock(); 2039 2040 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2041 if (IS_ERR_OR_NULL(sta)) { 2042 rcu_read_unlock(); 2043 WARN(1, "Can't find STA to configure HE\n"); 2044 return; 2045 } 2046 2047 if (!sta->he_cap.has_he) { 2048 rcu_read_unlock(); 2049 return; 2050 } 2051 2052 flags = 0; 2053 2054 /* Block 26-tone RU OFDMA transmissions */ 2055 if (mvmvif->he_ru_2mhz_block) 2056 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2057 2058 /* HTC flags */ 2059 if (sta->he_cap.he_cap_elem.mac_cap_info[0] & 2060 IEEE80211_HE_MAC_CAP0_HTC_HE) 2061 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2062 if ((sta->he_cap.he_cap_elem.mac_cap_info[1] & 2063 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2064 (sta->he_cap.he_cap_elem.mac_cap_info[2] & 2065 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2066 u8 link_adap = 2067 ((sta->he_cap.he_cap_elem.mac_cap_info[2] & 2068 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2069 (sta->he_cap.he_cap_elem.mac_cap_info[1] & 2070 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2071 2072 if (link_adap == 2) 2073 sta_ctxt_cmd.htc_flags |= 2074 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2075 else if (link_adap == 3) 2076 sta_ctxt_cmd.htc_flags |= 2077 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2078 } 2079 if (sta->he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2080 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2081 if (sta->he_cap.he_cap_elem.mac_cap_info[3] & 2082 IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2083 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2084 if (sta->he_cap.he_cap_elem.mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2085 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2086 2087 /* 2088 * Initialize the PPE thresholds to "None" (7), as described in Table 2089 * 9-262ac of 80211.ax/D3.0. 2090 */ 2091 memset(&sta_ctxt_cmd.pkt_ext, 7, sizeof(sta_ctxt_cmd.pkt_ext)); 2092 2093 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2094 if (sta->he_cap.he_cap_elem.phy_cap_info[6] & 2095 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2096 u8 nss = (sta->he_cap.ppe_thres[0] & 2097 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2098 u8 ru_index_bitmap = 2099 (sta->he_cap.ppe_thres[0] & 2100 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK) >> 2101 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS; 2102 u8 *ppe = &sta->he_cap.ppe_thres[0]; 2103 u8 ppe_pos_bit = 7; /* Starting after PPE header */ 2104 2105 /* 2106 * FW currently supports only nss == MAX_HE_SUPP_NSS 2107 * 2108 * If nss > MAX: we can ignore values we don't support 2109 * If nss < MAX: we can set zeros in other streams 2110 */ 2111 if (nss > MAX_HE_SUPP_NSS) { 2112 IWL_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2113 MAX_HE_SUPP_NSS); 2114 nss = MAX_HE_SUPP_NSS; 2115 } 2116 2117 for (i = 0; i < nss; i++) { 2118 u8 ru_index_tmp = ru_index_bitmap << 1; 2119 u8 bw; 2120 2121 for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX; bw++) { 2122 ru_index_tmp >>= 1; 2123 if (!(ru_index_tmp & 1)) 2124 continue; 2125 2126 sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][1] = 2127 iwl_mvm_he_get_ppe_val(ppe, 2128 ppe_pos_bit); 2129 ppe_pos_bit += 2130 IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2131 sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][0] = 2132 iwl_mvm_he_get_ppe_val(ppe, 2133 ppe_pos_bit); 2134 ppe_pos_bit += 2135 IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2136 } 2137 } 2138 2139 flags |= STA_CTXT_HE_PACKET_EXT; 2140 } else if ((sta->he_cap.he_cap_elem.phy_cap_info[9] & 2141 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) != 2142 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_RESERVED) { 2143 int low_th = -1; 2144 int high_th = -1; 2145 2146 /* Take the PPE thresholds from the nominal padding info */ 2147 switch (sta->he_cap.he_cap_elem.phy_cap_info[9] & 2148 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) { 2149 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US: 2150 low_th = IWL_HE_PKT_EXT_NONE; 2151 high_th = IWL_HE_PKT_EXT_NONE; 2152 break; 2153 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US: 2154 low_th = IWL_HE_PKT_EXT_BPSK; 2155 high_th = IWL_HE_PKT_EXT_NONE; 2156 break; 2157 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US: 2158 low_th = IWL_HE_PKT_EXT_NONE; 2159 high_th = IWL_HE_PKT_EXT_BPSK; 2160 break; 2161 } 2162 2163 /* Set the PPE thresholds accordingly */ 2164 if (low_th >= 0 && high_th >= 0) { 2165 struct iwl_he_pkt_ext *pkt_ext = 2166 (struct iwl_he_pkt_ext *)&sta_ctxt_cmd.pkt_ext; 2167 2168 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2169 u8 bw; 2170 2171 for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX; 2172 bw++) { 2173 pkt_ext->pkt_ext_qam_th[i][bw][0] = 2174 low_th; 2175 pkt_ext->pkt_ext_qam_th[i][bw][1] = 2176 high_th; 2177 } 2178 } 2179 2180 flags |= STA_CTXT_HE_PACKET_EXT; 2181 } 2182 } 2183 rcu_read_unlock(); 2184 2185 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2186 flags |= STA_CTXT_HE_MU_EDCA_CW; 2187 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2188 struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2189 &mvmvif->queue_params[i].mu_edca_param_rec; 2190 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2191 2192 if (!mvmvif->queue_params[i].mu_edca) { 2193 flags &= ~STA_CTXT_HE_MU_EDCA_CW; 2194 break; 2195 } 2196 2197 sta_ctxt_cmd.trig_based_txf[ac].cwmin = 2198 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2199 sta_ctxt_cmd.trig_based_txf[ac].cwmax = 2200 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2201 sta_ctxt_cmd.trig_based_txf[ac].aifsn = 2202 cpu_to_le16(mu_edca->aifsn); 2203 sta_ctxt_cmd.trig_based_txf[ac].mu_time = 2204 cpu_to_le16(mu_edca->mu_edca_timer); 2205 } 2206 2207 if (vif->bss_conf.multi_sta_back_32bit) 2208 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2209 2210 if (vif->bss_conf.ack_enabled) 2211 flags |= STA_CTXT_HE_ACK_ENABLED; 2212 2213 if (vif->bss_conf.uora_exists) { 2214 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2215 2216 sta_ctxt_cmd.rand_alloc_ecwmin = 2217 vif->bss_conf.uora_ocw_range & 0x7; 2218 sta_ctxt_cmd.rand_alloc_ecwmax = 2219 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2220 } 2221 2222 if (vif->bss_conf.nontransmitted) { 2223 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2224 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2225 vif->bss_conf.transmitter_bssid); 2226 sta_ctxt_cmd.max_bssid_indicator = 2227 vif->bss_conf.bssid_indicator; 2228 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2229 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2230 sta_ctxt_cmd.profile_periodicity = 2231 vif->bss_conf.profile_periodicity; 2232 } 2233 2234 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2235 2236 if (iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(STA_HE_CTXT_CMD, 2237 DATA_PATH_GROUP, 0), 2238 0, size, &sta_ctxt_cmd)) 2239 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2240 } 2241 2242 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2243 struct ieee80211_vif *vif, 2244 struct ieee80211_bss_conf *bss_conf, 2245 u32 changes) 2246 { 2247 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2248 int ret; 2249 2250 /* 2251 * Re-calculate the tsf id, as the master-slave relations depend on the 2252 * beacon interval, which was not known when the station interface was 2253 * added. 2254 */ 2255 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) { 2256 if (vif->bss_conf.he_support && 2257 !iwlwifi_mod_params.disable_11ax) 2258 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2259 2260 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2261 } 2262 2263 /* Update MU EDCA params */ 2264 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2265 bss_conf->assoc && vif->bss_conf.he_support && 2266 !iwlwifi_mod_params.disable_11ax) 2267 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2268 2269 /* 2270 * If we're not associated yet, take the (new) BSSID before associating 2271 * so the firmware knows. If we're already associated, then use the old 2272 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2273 * branch for disassociation below. 2274 */ 2275 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2276 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2277 2278 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); 2279 if (ret) 2280 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2281 2282 /* after sending it once, adopt mac80211 data */ 2283 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2284 mvmvif->associated = bss_conf->assoc; 2285 2286 if (changes & BSS_CHANGED_ASSOC) { 2287 if (bss_conf->assoc) { 2288 /* clear statistics to get clean beacon counter */ 2289 iwl_mvm_request_statistics(mvm, true); 2290 memset(&mvmvif->beacon_stats, 0, 2291 sizeof(mvmvif->beacon_stats)); 2292 2293 /* add quota for this interface */ 2294 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2295 if (ret) { 2296 IWL_ERR(mvm, "failed to update quotas\n"); 2297 return; 2298 } 2299 2300 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2301 &mvm->status) && 2302 !fw_has_capa(&mvm->fw->ucode_capa, 2303 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2304 /* 2305 * If we're restarting then the firmware will 2306 * obviously have lost synchronisation with 2307 * the AP. It will attempt to synchronise by 2308 * itself, but we can make it more reliable by 2309 * scheduling a session protection time event. 2310 * 2311 * The firmware needs to receive a beacon to 2312 * catch up with synchronisation, use 110% of 2313 * the beacon interval. 2314 * 2315 * Set a large maximum delay to allow for more 2316 * than a single interface. 2317 * 2318 * For new firmware versions, rely on the 2319 * firmware. This is relevant for DCM scenarios 2320 * only anyway. 2321 */ 2322 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2323 iwl_mvm_protect_session(mvm, vif, dur, dur, 2324 5 * dur, false); 2325 } 2326 2327 iwl_mvm_sf_update(mvm, vif, false); 2328 iwl_mvm_power_vif_assoc(mvm, vif); 2329 if (vif->p2p) { 2330 iwl_mvm_update_smps(mvm, vif, 2331 IWL_MVM_SMPS_REQ_PROT, 2332 IEEE80211_SMPS_DYNAMIC); 2333 } 2334 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 2335 /* 2336 * If update fails - SF might be running in associated 2337 * mode while disassociated - which is forbidden. 2338 */ 2339 ret = iwl_mvm_sf_update(mvm, vif, false); 2340 WARN_ONCE(ret && 2341 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2342 &mvm->status), 2343 "Failed to update SF upon disassociation\n"); 2344 2345 /* 2346 * If we get an assert during the connection (after the 2347 * station has been added, but before the vif is set 2348 * to associated), mac80211 will re-add the station and 2349 * then configure the vif. Since the vif is not 2350 * associated, we would remove the station here and 2351 * this would fail the recovery. 2352 */ 2353 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2354 &mvm->status)) { 2355 /* 2356 * Remove AP station now that 2357 * the MAC is unassoc 2358 */ 2359 ret = iwl_mvm_rm_sta_id(mvm, vif, 2360 mvmvif->ap_sta_id); 2361 if (ret) 2362 IWL_ERR(mvm, 2363 "failed to remove AP station\n"); 2364 2365 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 2366 } 2367 2368 /* remove quota for this interface */ 2369 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2370 if (ret) 2371 IWL_ERR(mvm, "failed to update quotas\n"); 2372 2373 /* this will take the cleared BSSID from bss_conf */ 2374 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2375 if (ret) 2376 IWL_ERR(mvm, 2377 "failed to update MAC %pM (clear after unassoc)\n", 2378 vif->addr); 2379 } 2380 2381 /* 2382 * The firmware tracks the MU-MIMO group on its own. 2383 * However, on HW restart we should restore this data. 2384 */ 2385 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2386 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) { 2387 ret = iwl_mvm_update_mu_groups(mvm, vif); 2388 if (ret) 2389 IWL_ERR(mvm, 2390 "failed to update VHT MU_MIMO groups\n"); 2391 } 2392 2393 iwl_mvm_recalc_multicast(mvm); 2394 iwl_mvm_configure_bcast_filter(mvm); 2395 2396 /* reset rssi values */ 2397 mvmvif->bf_data.ave_beacon_signal = 0; 2398 2399 iwl_mvm_bt_coex_vif_change(mvm); 2400 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2401 IEEE80211_SMPS_AUTOMATIC); 2402 if (fw_has_capa(&mvm->fw->ucode_capa, 2403 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2404 iwl_mvm_config_scan(mvm); 2405 } 2406 2407 if (changes & BSS_CHANGED_BEACON_INFO) { 2408 /* 2409 * We received a beacon from the associated AP so 2410 * remove the session protection. 2411 * A firmware with the new API will remove it automatically. 2412 */ 2413 if (!fw_has_capa(&mvm->fw->ucode_capa, 2414 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2415 iwl_mvm_stop_session_protection(mvm, vif); 2416 2417 iwl_mvm_sf_update(mvm, vif, false); 2418 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2419 } 2420 2421 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2422 /* 2423 * Send power command on every beacon change, 2424 * because we may have not enabled beacon abort yet. 2425 */ 2426 BSS_CHANGED_BEACON_INFO)) { 2427 ret = iwl_mvm_power_update_mac(mvm); 2428 if (ret) 2429 IWL_ERR(mvm, "failed to update power mode\n"); 2430 } 2431 2432 if (changes & BSS_CHANGED_TXPOWER) { 2433 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 2434 bss_conf->txpower); 2435 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2436 } 2437 2438 if (changes & BSS_CHANGED_CQM) { 2439 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2440 /* reset cqm events tracking */ 2441 mvmvif->bf_data.last_cqm_event = 0; 2442 if (mvmvif->bf_data.bf_enabled) { 2443 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2444 if (ret) 2445 IWL_ERR(mvm, 2446 "failed to update CQM thresholds\n"); 2447 } 2448 } 2449 2450 if (changes & BSS_CHANGED_ARP_FILTER) { 2451 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); 2452 iwl_mvm_configure_bcast_filter(mvm); 2453 } 2454 } 2455 2456 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2457 struct ieee80211_vif *vif) 2458 { 2459 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2460 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2461 int ret, i; 2462 2463 mutex_lock(&mvm->mutex); 2464 2465 /* Send the beacon template */ 2466 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); 2467 if (ret) 2468 goto out_unlock; 2469 2470 /* 2471 * Re-calculate the tsf id, as the master-slave relations depend on the 2472 * beacon interval, which was not known when the AP interface was added. 2473 */ 2474 if (vif->type == NL80211_IFTYPE_AP) 2475 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2476 2477 mvmvif->ap_assoc_sta_count = 0; 2478 2479 /* Add the mac context */ 2480 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2481 if (ret) 2482 goto out_unlock; 2483 2484 /* Perform the binding */ 2485 ret = iwl_mvm_binding_add_vif(mvm, vif); 2486 if (ret) 2487 goto out_remove; 2488 2489 /* 2490 * This is not very nice, but the simplest: 2491 * For older FWs adding the mcast sta before the bcast station may 2492 * cause assert 0x2b00. 2493 * This is fixed in later FW so make the order of removal depend on 2494 * the TLV 2495 */ 2496 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2497 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2498 if (ret) 2499 goto out_unbind; 2500 /* 2501 * Send the bcast station. At this stage the TBTT and DTIM time 2502 * events are added and applied to the scheduler 2503 */ 2504 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2505 if (ret) { 2506 iwl_mvm_rm_mcast_sta(mvm, vif); 2507 goto out_unbind; 2508 } 2509 } else { 2510 /* 2511 * Send the bcast station. At this stage the TBTT and DTIM time 2512 * events are added and applied to the scheduler 2513 */ 2514 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2515 if (ret) 2516 goto out_unbind; 2517 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2518 if (ret) { 2519 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2520 goto out_unbind; 2521 } 2522 } 2523 2524 /* must be set before quota calculations */ 2525 mvmvif->ap_ibss_active = true; 2526 2527 /* send all the early keys to the device now */ 2528 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2529 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2530 2531 if (!key) 2532 continue; 2533 2534 mvmvif->ap_early_keys[i] = NULL; 2535 2536 ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2537 if (ret) 2538 goto out_quota_failed; 2539 } 2540 2541 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2542 iwl_mvm_vif_set_low_latency(mvmvif, true, 2543 LOW_LATENCY_VIF_TYPE); 2544 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2545 } 2546 2547 /* power updated needs to be done before quotas */ 2548 iwl_mvm_power_update_mac(mvm); 2549 2550 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2551 if (ret) 2552 goto out_quota_failed; 2553 2554 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2555 if (vif->p2p && mvm->p2p_device_vif) 2556 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2557 2558 iwl_mvm_bt_coex_vif_change(mvm); 2559 2560 /* we don't support TDLS during DCM */ 2561 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2562 iwl_mvm_teardown_tdls_peers(mvm); 2563 2564 iwl_mvm_ftm_restart_responder(mvm, vif); 2565 2566 goto out_unlock; 2567 2568 out_quota_failed: 2569 iwl_mvm_power_update_mac(mvm); 2570 mvmvif->ap_ibss_active = false; 2571 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2572 iwl_mvm_rm_mcast_sta(mvm, vif); 2573 out_unbind: 2574 iwl_mvm_binding_remove_vif(mvm, vif); 2575 out_remove: 2576 iwl_mvm_mac_ctxt_remove(mvm, vif); 2577 out_unlock: 2578 mutex_unlock(&mvm->mutex); 2579 return ret; 2580 } 2581 2582 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2583 struct ieee80211_vif *vif) 2584 { 2585 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2586 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2587 2588 iwl_mvm_prepare_mac_removal(mvm, vif); 2589 2590 mutex_lock(&mvm->mutex); 2591 2592 /* Handle AP stop while in CSA */ 2593 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2594 iwl_mvm_remove_time_event(mvm, mvmvif, 2595 &mvmvif->time_event_data); 2596 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2597 mvmvif->csa_countdown = false; 2598 } 2599 2600 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2601 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2602 mvm->csa_tx_block_bcn_timeout = 0; 2603 } 2604 2605 mvmvif->ap_ibss_active = false; 2606 mvm->ap_last_beacon_gp2 = 0; 2607 2608 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2609 iwl_mvm_vif_set_low_latency(mvmvif, false, 2610 LOW_LATENCY_VIF_TYPE); 2611 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2612 } 2613 2614 iwl_mvm_bt_coex_vif_change(mvm); 2615 2616 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2617 if (vif->p2p && mvm->p2p_device_vif) 2618 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2619 2620 iwl_mvm_update_quotas(mvm, false, NULL); 2621 2622 /* 2623 * This is not very nice, but the simplest: 2624 * For older FWs removing the mcast sta before the bcast station may 2625 * cause assert 0x2b00. 2626 * This is fixed in later FW (which will stop beaconing when removing 2627 * bcast station). 2628 * So make the order of removal depend on the TLV 2629 */ 2630 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2631 iwl_mvm_rm_mcast_sta(mvm, vif); 2632 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2633 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2634 iwl_mvm_rm_mcast_sta(mvm, vif); 2635 iwl_mvm_binding_remove_vif(mvm, vif); 2636 2637 iwl_mvm_power_update_mac(mvm); 2638 2639 iwl_mvm_mac_ctxt_remove(mvm, vif); 2640 2641 mutex_unlock(&mvm->mutex); 2642 } 2643 2644 static void 2645 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 2646 struct ieee80211_vif *vif, 2647 struct ieee80211_bss_conf *bss_conf, 2648 u32 changes) 2649 { 2650 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2651 2652 /* Changes will be applied when the AP/IBSS is started */ 2653 if (!mvmvif->ap_ibss_active) 2654 return; 2655 2656 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 2657 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 2658 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 2659 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2660 2661 /* Need to send a new beacon template to the FW */ 2662 if (changes & BSS_CHANGED_BEACON && 2663 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) 2664 IWL_WARN(mvm, "Failed updating beacon data\n"); 2665 2666 if (changes & BSS_CHANGED_TXPOWER) { 2667 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 2668 bss_conf->txpower); 2669 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2670 } 2671 2672 if (changes & BSS_CHANGED_FTM_RESPONDER) { 2673 int ret = iwl_mvm_ftm_start_responder(mvm, vif); 2674 2675 if (ret) 2676 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 2677 ret); 2678 } 2679 2680 } 2681 2682 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 2683 struct ieee80211_vif *vif, 2684 struct ieee80211_bss_conf *bss_conf, 2685 u32 changes) 2686 { 2687 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2688 2689 mutex_lock(&mvm->mutex); 2690 2691 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) 2692 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 2693 2694 switch (vif->type) { 2695 case NL80211_IFTYPE_STATION: 2696 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 2697 break; 2698 case NL80211_IFTYPE_AP: 2699 case NL80211_IFTYPE_ADHOC: 2700 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 2701 break; 2702 case NL80211_IFTYPE_MONITOR: 2703 if (changes & BSS_CHANGED_MU_GROUPS) 2704 iwl_mvm_update_mu_groups(mvm, vif); 2705 break; 2706 default: 2707 /* shouldn't happen */ 2708 WARN_ON_ONCE(1); 2709 } 2710 2711 mutex_unlock(&mvm->mutex); 2712 } 2713 2714 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, 2715 struct ieee80211_vif *vif, 2716 struct ieee80211_scan_request *hw_req) 2717 { 2718 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2719 int ret; 2720 2721 if (hw_req->req.n_channels == 0 || 2722 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 2723 return -EINVAL; 2724 2725 mutex_lock(&mvm->mutex); 2726 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 2727 mutex_unlock(&mvm->mutex); 2728 2729 return ret; 2730 } 2731 2732 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 2733 struct ieee80211_vif *vif) 2734 { 2735 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2736 2737 mutex_lock(&mvm->mutex); 2738 2739 /* Due to a race condition, it's possible that mac80211 asks 2740 * us to stop a hw_scan when it's already stopped. This can 2741 * happen, for instance, if we stopped the scan ourselves, 2742 * called ieee80211_scan_completed() and the userspace called 2743 * cancel scan scan before ieee80211_scan_work() could run. 2744 * To handle that, simply return if the scan is not running. 2745 */ 2746 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 2747 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 2748 2749 mutex_unlock(&mvm->mutex); 2750 } 2751 2752 static void 2753 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 2754 struct ieee80211_sta *sta, u16 tids, 2755 int num_frames, 2756 enum ieee80211_frame_release_type reason, 2757 bool more_data) 2758 { 2759 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2760 2761 /* Called when we need to transmit (a) frame(s) from mac80211 */ 2762 2763 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2764 tids, more_data, false); 2765 } 2766 2767 static void 2768 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 2769 struct ieee80211_sta *sta, u16 tids, 2770 int num_frames, 2771 enum ieee80211_frame_release_type reason, 2772 bool more_data) 2773 { 2774 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2775 2776 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 2777 2778 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2779 tids, more_data, true); 2780 } 2781 2782 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2783 enum sta_notify_cmd cmd, 2784 struct ieee80211_sta *sta) 2785 { 2786 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2787 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2788 unsigned long txqs = 0, tids = 0; 2789 int tid; 2790 2791 /* 2792 * If we have TVQM then we get too high queue numbers - luckily 2793 * we really shouldn't get here with that because such hardware 2794 * should have firmware supporting buffer station offload. 2795 */ 2796 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 2797 return; 2798 2799 spin_lock_bh(&mvmsta->lock); 2800 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 2801 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2802 2803 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 2804 continue; 2805 2806 __set_bit(tid_data->txq_id, &txqs); 2807 2808 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 2809 continue; 2810 2811 __set_bit(tid, &tids); 2812 } 2813 2814 switch (cmd) { 2815 case STA_NOTIFY_SLEEP: 2816 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 2817 ieee80211_sta_set_buffered(sta, tid, true); 2818 2819 if (txqs) 2820 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 2821 /* 2822 * The fw updates the STA to be asleep. Tx packets on the Tx 2823 * queues to this station will not be transmitted. The fw will 2824 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 2825 */ 2826 break; 2827 case STA_NOTIFY_AWAKE: 2828 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA)) 2829 break; 2830 2831 if (txqs) 2832 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 2833 iwl_mvm_sta_modify_ps_wake(mvm, sta); 2834 break; 2835 default: 2836 break; 2837 } 2838 spin_unlock_bh(&mvmsta->lock); 2839 } 2840 2841 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2842 struct ieee80211_vif *vif, 2843 enum sta_notify_cmd cmd, 2844 struct ieee80211_sta *sta) 2845 { 2846 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 2847 } 2848 2849 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 2850 { 2851 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2852 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 2853 struct ieee80211_sta *sta; 2854 struct iwl_mvm_sta *mvmsta; 2855 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 2856 2857 if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))) 2858 return; 2859 2860 rcu_read_lock(); 2861 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 2862 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 2863 rcu_read_unlock(); 2864 return; 2865 } 2866 2867 mvmsta = iwl_mvm_sta_from_mac80211(sta); 2868 2869 if (!mvmsta->vif || 2870 mvmsta->vif->type != NL80211_IFTYPE_AP) { 2871 rcu_read_unlock(); 2872 return; 2873 } 2874 2875 if (mvmsta->sleeping != sleeping) { 2876 mvmsta->sleeping = sleeping; 2877 __iwl_mvm_mac_sta_notify(mvm->hw, 2878 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 2879 sta); 2880 ieee80211_sta_ps_transition(sta, sleeping); 2881 } 2882 2883 if (sleeping) { 2884 switch (notif->type) { 2885 case IWL_MVM_PM_EVENT_AWAKE: 2886 case IWL_MVM_PM_EVENT_ASLEEP: 2887 break; 2888 case IWL_MVM_PM_EVENT_UAPSD: 2889 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 2890 break; 2891 case IWL_MVM_PM_EVENT_PS_POLL: 2892 ieee80211_sta_pspoll(sta); 2893 break; 2894 default: 2895 break; 2896 } 2897 } 2898 2899 rcu_read_unlock(); 2900 } 2901 2902 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 2903 struct ieee80211_vif *vif, 2904 struct ieee80211_sta *sta) 2905 { 2906 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2907 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2908 2909 /* 2910 * This is called before mac80211 does RCU synchronisation, 2911 * so here we already invalidate our internal RCU-protected 2912 * station pointer. The rest of the code will thus no longer 2913 * be able to find the station this way, and we don't rely 2914 * on further RCU synchronisation after the sta_state() 2915 * callback deleted the station. 2916 */ 2917 mutex_lock(&mvm->mutex); 2918 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) 2919 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], 2920 ERR_PTR(-ENOENT)); 2921 2922 mutex_unlock(&mvm->mutex); 2923 } 2924 2925 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2926 const u8 *bssid) 2927 { 2928 int i; 2929 2930 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 2931 struct iwl_mvm_tcm_mac *mdata; 2932 2933 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 2934 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 2935 mdata->opened_rx_ba_sessions = false; 2936 } 2937 2938 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 2939 return; 2940 2941 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 2942 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2943 return; 2944 } 2945 2946 if (!vif->p2p && 2947 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 2948 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2949 return; 2950 } 2951 2952 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 2953 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 2954 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2955 return; 2956 } 2957 } 2958 2959 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 2960 } 2961 2962 static void 2963 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 2964 struct ieee80211_vif *vif, u8 *peer_addr, 2965 enum nl80211_tdls_operation action) 2966 { 2967 struct iwl_fw_dbg_trigger_tlv *trig; 2968 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 2969 2970 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 2971 FW_DBG_TRIGGER_TDLS); 2972 if (!trig) 2973 return; 2974 2975 tdls_trig = (void *)trig->data; 2976 2977 if (!(tdls_trig->action_bitmap & BIT(action))) 2978 return; 2979 2980 if (tdls_trig->peer_mode && 2981 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 2982 return; 2983 2984 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 2985 "TDLS event occurred, peer %pM, action %d", 2986 peer_addr, action); 2987 } 2988 2989 struct iwl_mvm_he_obss_narrow_bw_ru_data { 2990 bool tolerated; 2991 }; 2992 2993 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 2994 struct cfg80211_bss *bss, 2995 void *_data) 2996 { 2997 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 2998 const struct element *elem; 2999 3000 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, bss->ies->data, 3001 bss->ies->len); 3002 3003 if (!elem || elem->datalen < 10 || 3004 !(elem->data[10] & 3005 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3006 data->tolerated = false; 3007 } 3008 } 3009 3010 static void iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3011 struct ieee80211_vif *vif) 3012 { 3013 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3014 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3015 .tolerated = true, 3016 }; 3017 3018 if (!(vif->bss_conf.chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3019 mvmvif->he_ru_2mhz_block = false; 3020 return; 3021 } 3022 3023 cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chandef, 3024 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3025 &iter_data); 3026 3027 /* 3028 * If there is at least one AP on radar channel that cannot 3029 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3030 */ 3031 mvmvif->he_ru_2mhz_block = !iter_data.tolerated; 3032 } 3033 3034 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3035 struct ieee80211_vif *vif, 3036 struct ieee80211_sta *sta, 3037 enum ieee80211_sta_state old_state, 3038 enum ieee80211_sta_state new_state) 3039 { 3040 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3041 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3042 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3043 int ret; 3044 3045 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3046 sta->addr, old_state, new_state); 3047 3048 /* this would be a mac80211 bug ... but don't crash */ 3049 if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) 3050 return -EINVAL; 3051 3052 /* 3053 * If we are in a STA removal flow and in DQA mode: 3054 * 3055 * This is after the sync_rcu part, so the queues have already been 3056 * flushed. No more TXs on their way in mac80211's path, and no more in 3057 * the queues. 3058 * Also, we won't be getting any new TX frames for this station. 3059 * What we might have are deferred TX frames that need to be taken care 3060 * of. 3061 * 3062 * Drop any still-queued deferred-frame before removing the STA, and 3063 * make sure the worker is no longer handling frames for this STA. 3064 */ 3065 if (old_state == IEEE80211_STA_NONE && 3066 new_state == IEEE80211_STA_NOTEXIST) { 3067 flush_work(&mvm->add_stream_wk); 3068 3069 /* 3070 * No need to make sure deferred TX indication is off since the 3071 * worker will already remove it if it was on 3072 */ 3073 } 3074 3075 mutex_lock(&mvm->mutex); 3076 /* track whether or not the station is associated */ 3077 mvm_sta->sta_state = new_state; 3078 3079 if (old_state == IEEE80211_STA_NOTEXIST && 3080 new_state == IEEE80211_STA_NONE) { 3081 /* 3082 * Firmware bug - it'll crash if the beacon interval is less 3083 * than 16. We can't avoid connecting at all, so refuse the 3084 * station state change, this will cause mac80211 to abandon 3085 * attempts to connect to this AP, and eventually wpa_s will 3086 * blacklist the AP... 3087 */ 3088 if (vif->type == NL80211_IFTYPE_STATION && 3089 vif->bss_conf.beacon_int < 16) { 3090 IWL_ERR(mvm, 3091 "AP %pM beacon interval is %d, refusing due to firmware bug!\n", 3092 sta->addr, vif->bss_conf.beacon_int); 3093 ret = -EINVAL; 3094 goto out_unlock; 3095 } 3096 3097 if (sta->tdls && 3098 (vif->p2p || 3099 iwl_mvm_tdls_sta_count(mvm, NULL) == 3100 IWL_MVM_TDLS_STA_COUNT || 3101 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3102 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3103 ret = -EBUSY; 3104 goto out_unlock; 3105 } 3106 3107 ret = iwl_mvm_add_sta(mvm, vif, sta); 3108 if (sta->tdls && ret == 0) { 3109 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3110 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3111 NL80211_TDLS_SETUP); 3112 } 3113 3114 sta->max_rc_amsdu_len = 1; 3115 } else if (old_state == IEEE80211_STA_NONE && 3116 new_state == IEEE80211_STA_AUTH) { 3117 /* 3118 * EBS may be disabled due to previous failures reported by FW. 3119 * Reset EBS status here assuming environment has been changed. 3120 */ 3121 mvm->last_ebs_successful = true; 3122 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3123 ret = 0; 3124 } else if (old_state == IEEE80211_STA_AUTH && 3125 new_state == IEEE80211_STA_ASSOC) { 3126 if (vif->type == NL80211_IFTYPE_AP) { 3127 vif->bss_conf.he_support = sta->he_cap.has_he; 3128 mvmvif->ap_assoc_sta_count++; 3129 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3130 if (vif->bss_conf.he_support && 3131 !iwlwifi_mod_params.disable_11ax) 3132 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->sta_id); 3133 } else if (vif->type == NL80211_IFTYPE_STATION) { 3134 vif->bss_conf.he_support = sta->he_cap.has_he; 3135 3136 mvmvif->he_ru_2mhz_block = false; 3137 if (sta->he_cap.has_he) 3138 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif); 3139 3140 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3141 } 3142 3143 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3144 false); 3145 ret = iwl_mvm_update_sta(mvm, vif, sta); 3146 } else if (old_state == IEEE80211_STA_ASSOC && 3147 new_state == IEEE80211_STA_AUTHORIZED) { 3148 ret = 0; 3149 3150 /* we don't support TDLS during DCM */ 3151 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3152 iwl_mvm_teardown_tdls_peers(mvm); 3153 3154 if (sta->tdls) 3155 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3156 NL80211_TDLS_ENABLE_LINK); 3157 3158 /* enable beacon filtering */ 3159 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3160 3161 /* 3162 * Now that the station is authorized, i.e., keys were already 3163 * installed, need to indicate to the FW that 3164 * multicast data frames can be forwarded to the driver 3165 */ 3166 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3167 3168 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3169 true); 3170 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3171 new_state == IEEE80211_STA_ASSOC) { 3172 /* Multicast data frames are no longer allowed */ 3173 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3174 3175 /* disable beacon filtering */ 3176 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3177 WARN_ON(ret && 3178 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3179 &mvm->status)); 3180 ret = 0; 3181 } else if (old_state == IEEE80211_STA_ASSOC && 3182 new_state == IEEE80211_STA_AUTH) { 3183 if (vif->type == NL80211_IFTYPE_AP) { 3184 mvmvif->ap_assoc_sta_count--; 3185 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3186 } 3187 ret = 0; 3188 } else if (old_state == IEEE80211_STA_AUTH && 3189 new_state == IEEE80211_STA_NONE) { 3190 ret = 0; 3191 } else if (old_state == IEEE80211_STA_NONE && 3192 new_state == IEEE80211_STA_NOTEXIST) { 3193 ret = iwl_mvm_rm_sta(mvm, vif, sta); 3194 if (sta->tdls) { 3195 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3196 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3197 NL80211_TDLS_DISABLE_LINK); 3198 } 3199 3200 if (unlikely(ret && 3201 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3202 &mvm->status))) 3203 ret = 0; 3204 } else { 3205 ret = -EIO; 3206 } 3207 out_unlock: 3208 mutex_unlock(&mvm->mutex); 3209 3210 if (sta->tdls && ret == 0) { 3211 if (old_state == IEEE80211_STA_NOTEXIST && 3212 new_state == IEEE80211_STA_NONE) 3213 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3214 else if (old_state == IEEE80211_STA_NONE && 3215 new_state == IEEE80211_STA_NOTEXIST) 3216 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3217 } 3218 3219 return ret; 3220 } 3221 3222 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3223 { 3224 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3225 3226 mvm->rts_threshold = value; 3227 3228 return 0; 3229 } 3230 3231 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, 3232 struct ieee80211_vif *vif, 3233 struct ieee80211_sta *sta, u32 changed) 3234 { 3235 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3236 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3237 3238 if (changed & (IEEE80211_RC_BW_CHANGED | 3239 IEEE80211_RC_SUPP_RATES_CHANGED | 3240 IEEE80211_RC_NSS_CHANGED)) 3241 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3242 true); 3243 3244 if (vif->type == NL80211_IFTYPE_STATION && 3245 changed & IEEE80211_RC_NSS_CHANGED) 3246 iwl_mvm_sf_update(mvm, vif, false); 3247 } 3248 3249 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 3250 struct ieee80211_vif *vif, u16 ac, 3251 const struct ieee80211_tx_queue_params *params) 3252 { 3253 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3254 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3255 3256 mvmvif->queue_params[ac] = *params; 3257 3258 /* 3259 * No need to update right away, we'll get BSS_CHANGED_QOS 3260 * The exception is P2P_DEVICE interface which needs immediate update. 3261 */ 3262 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 3263 int ret; 3264 3265 mutex_lock(&mvm->mutex); 3266 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3267 mutex_unlock(&mvm->mutex); 3268 return ret; 3269 } 3270 return 0; 3271 } 3272 3273 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 3274 struct ieee80211_vif *vif, 3275 u16 req_duration) 3276 { 3277 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3278 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 3279 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 3280 3281 if (req_duration > duration) 3282 duration = req_duration; 3283 3284 mutex_lock(&mvm->mutex); 3285 /* Try really hard to protect the session and hear a beacon 3286 * The new session protection command allows us to protect the 3287 * session for a much longer time since the firmware will internally 3288 * create two events: a 300TU one with a very high priority that 3289 * won't be fragmented which should be enough for 99% of the cases, 3290 * and another one (which we configure here to be 900TU long) which 3291 * will have a slightly lower priority, but more importantly, can be 3292 * fragmented so that it'll allow other activities to run. 3293 */ 3294 if (fw_has_capa(&mvm->fw->ucode_capa, 3295 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 3296 iwl_mvm_schedule_session_protection(mvm, vif, 900, 3297 min_duration, false); 3298 else 3299 iwl_mvm_protect_session(mvm, vif, duration, 3300 min_duration, 500, false); 3301 mutex_unlock(&mvm->mutex); 3302 } 3303 3304 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 3305 struct ieee80211_vif *vif, 3306 struct cfg80211_sched_scan_request *req, 3307 struct ieee80211_scan_ies *ies) 3308 { 3309 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3310 3311 int ret; 3312 3313 mutex_lock(&mvm->mutex); 3314 3315 if (!vif->bss_conf.idle) { 3316 ret = -EBUSY; 3317 goto out; 3318 } 3319 3320 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 3321 3322 out: 3323 mutex_unlock(&mvm->mutex); 3324 return ret; 3325 } 3326 3327 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 3328 struct ieee80211_vif *vif) 3329 { 3330 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3331 int ret; 3332 3333 mutex_lock(&mvm->mutex); 3334 3335 /* Due to a race condition, it's possible that mac80211 asks 3336 * us to stop a sched_scan when it's already stopped. This 3337 * can happen, for instance, if we stopped the scan ourselves, 3338 * called ieee80211_sched_scan_stopped() and the userspace called 3339 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 3340 * could run. To handle this, simply return if the scan is 3341 * not running. 3342 */ 3343 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 3344 mutex_unlock(&mvm->mutex); 3345 return 0; 3346 } 3347 3348 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 3349 mutex_unlock(&mvm->mutex); 3350 iwl_mvm_wait_for_async_handlers(mvm); 3351 3352 return ret; 3353 } 3354 3355 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3356 enum set_key_cmd cmd, 3357 struct ieee80211_vif *vif, 3358 struct ieee80211_sta *sta, 3359 struct ieee80211_key_conf *key) 3360 { 3361 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3362 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3363 struct iwl_mvm_sta *mvmsta; 3364 struct iwl_mvm_key_pn *ptk_pn; 3365 int keyidx = key->keyidx; 3366 int ret, i; 3367 u8 key_offset; 3368 3369 if (iwlwifi_mod_params.swcrypto) { 3370 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); 3371 return -EOPNOTSUPP; 3372 } 3373 3374 switch (key->cipher) { 3375 case WLAN_CIPHER_SUITE_TKIP: 3376 if (!mvm->trans->trans_cfg->gen2) { 3377 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 3378 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3379 } else if (vif->type == NL80211_IFTYPE_STATION) { 3380 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 3381 } else { 3382 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 3383 return -EOPNOTSUPP; 3384 } 3385 break; 3386 case WLAN_CIPHER_SUITE_CCMP: 3387 case WLAN_CIPHER_SUITE_GCMP: 3388 case WLAN_CIPHER_SUITE_GCMP_256: 3389 if (!iwl_mvm_has_new_tx_api(mvm)) 3390 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3391 break; 3392 case WLAN_CIPHER_SUITE_AES_CMAC: 3393 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3394 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3395 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 3396 break; 3397 case WLAN_CIPHER_SUITE_WEP40: 3398 case WLAN_CIPHER_SUITE_WEP104: 3399 if (vif->type == NL80211_IFTYPE_STATION) 3400 break; 3401 if (iwl_mvm_has_new_tx_api(mvm)) 3402 return -EOPNOTSUPP; 3403 /* support HW crypto on TX */ 3404 return 0; 3405 default: 3406 /* currently FW supports only one optional cipher scheme */ 3407 if (hw->n_cipher_schemes && 3408 hw->cipher_schemes->cipher == key->cipher) 3409 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3410 else 3411 return -EOPNOTSUPP; 3412 } 3413 3414 switch (cmd) { 3415 case SET_KEY: 3416 if ((vif->type == NL80211_IFTYPE_ADHOC || 3417 vif->type == NL80211_IFTYPE_AP) && !sta) { 3418 /* 3419 * GTK on AP interface is a TX-only key, return 0; 3420 * on IBSS they're per-station and because we're lazy 3421 * we don't support them for RX, so do the same. 3422 * CMAC/GMAC in AP/IBSS modes must be done in software. 3423 */ 3424 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3425 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3426 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 3427 ret = -EOPNOTSUPP; 3428 else 3429 ret = 0; 3430 3431 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 3432 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 3433 !iwl_mvm_has_new_tx_api(mvm)) { 3434 key->hw_key_idx = STA_KEY_IDX_INVALID; 3435 break; 3436 } 3437 3438 if (!mvmvif->ap_ibss_active) { 3439 for (i = 0; 3440 i < ARRAY_SIZE(mvmvif->ap_early_keys); 3441 i++) { 3442 if (!mvmvif->ap_early_keys[i]) { 3443 mvmvif->ap_early_keys[i] = key; 3444 break; 3445 } 3446 } 3447 3448 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 3449 ret = -ENOSPC; 3450 3451 break; 3452 } 3453 } 3454 3455 /* During FW restart, in order to restore the state as it was, 3456 * don't try to reprogram keys we previously failed for. 3457 */ 3458 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3459 key->hw_key_idx == STA_KEY_IDX_INVALID) { 3460 IWL_DEBUG_MAC80211(mvm, 3461 "skip invalid idx key programming during restart\n"); 3462 ret = 0; 3463 break; 3464 } 3465 3466 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3467 sta && iwl_mvm_has_new_rx_api(mvm) && 3468 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3469 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3470 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3471 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3472 struct ieee80211_key_seq seq; 3473 int tid, q; 3474 3475 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3476 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 3477 ptk_pn = kzalloc(struct_size(ptk_pn, q, 3478 mvm->trans->num_rx_queues), 3479 GFP_KERNEL); 3480 if (!ptk_pn) { 3481 ret = -ENOMEM; 3482 break; 3483 } 3484 3485 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 3486 ieee80211_get_key_rx_seq(key, tid, &seq); 3487 for (q = 0; q < mvm->trans->num_rx_queues; q++) 3488 memcpy(ptk_pn->q[q].pn[tid], 3489 seq.ccmp.pn, 3490 IEEE80211_CCMP_PN_LEN); 3491 } 3492 3493 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 3494 } 3495 3496 /* in HW restart reuse the index, otherwise request a new one */ 3497 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3498 key_offset = key->hw_key_idx; 3499 else 3500 key_offset = STA_KEY_IDX_INVALID; 3501 3502 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); 3503 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 3504 if (ret) { 3505 IWL_WARN(mvm, "set key failed\n"); 3506 key->hw_key_idx = STA_KEY_IDX_INVALID; 3507 /* 3508 * can't add key for RX, but we don't need it 3509 * in the device for TX so still return 0, 3510 * unless we have new TX API where we cannot 3511 * put key material into the TX_CMD 3512 */ 3513 if (iwl_mvm_has_new_tx_api(mvm)) 3514 ret = -EOPNOTSUPP; 3515 else 3516 ret = 0; 3517 } 3518 3519 break; 3520 case DISABLE_KEY: 3521 ret = -ENOENT; 3522 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 3523 if (mvmvif->ap_early_keys[i] == key) { 3524 mvmvif->ap_early_keys[i] = NULL; 3525 ret = 0; 3526 } 3527 } 3528 3529 /* found in pending list - don't do anything else */ 3530 if (ret == 0) 3531 break; 3532 3533 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 3534 ret = 0; 3535 break; 3536 } 3537 3538 if (sta && iwl_mvm_has_new_rx_api(mvm) && 3539 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3540 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3541 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3542 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3543 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3544 ptk_pn = rcu_dereference_protected( 3545 mvmsta->ptk_pn[keyidx], 3546 lockdep_is_held(&mvm->mutex)); 3547 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 3548 if (ptk_pn) 3549 kfree_rcu(ptk_pn, rcu_head); 3550 } 3551 3552 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 3553 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 3554 break; 3555 default: 3556 ret = -EINVAL; 3557 } 3558 3559 return ret; 3560 } 3561 3562 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3563 enum set_key_cmd cmd, 3564 struct ieee80211_vif *vif, 3565 struct ieee80211_sta *sta, 3566 struct ieee80211_key_conf *key) 3567 { 3568 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3569 int ret; 3570 3571 mutex_lock(&mvm->mutex); 3572 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 3573 mutex_unlock(&mvm->mutex); 3574 3575 return ret; 3576 } 3577 3578 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 3579 struct ieee80211_vif *vif, 3580 struct ieee80211_key_conf *keyconf, 3581 struct ieee80211_sta *sta, 3582 u32 iv32, u16 *phase1key) 3583 { 3584 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3585 3586 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 3587 return; 3588 3589 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 3590 } 3591 3592 3593 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 3594 struct iwl_rx_packet *pkt, void *data) 3595 { 3596 struct iwl_mvm *mvm = 3597 container_of(notif_wait, struct iwl_mvm, notif_wait); 3598 struct iwl_hs20_roc_res *resp; 3599 int resp_len = iwl_rx_packet_payload_len(pkt); 3600 struct iwl_mvm_time_event_data *te_data = data; 3601 3602 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 3603 return true; 3604 3605 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 3606 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 3607 return true; 3608 } 3609 3610 resp = (void *)pkt->data; 3611 3612 IWL_DEBUG_TE(mvm, 3613 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 3614 resp->status, resp->event_unique_id); 3615 3616 te_data->uid = le32_to_cpu(resp->event_unique_id); 3617 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 3618 te_data->uid); 3619 3620 spin_lock_bh(&mvm->time_event_lock); 3621 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 3622 spin_unlock_bh(&mvm->time_event_lock); 3623 3624 return true; 3625 } 3626 3627 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 3628 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 3629 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 3630 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 3631 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 3632 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 3633 struct ieee80211_channel *channel, 3634 struct ieee80211_vif *vif, 3635 int duration) 3636 { 3637 int res; 3638 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3639 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 3640 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 3641 struct iwl_notification_wait wait_time_event; 3642 u32 dtim_interval = vif->bss_conf.dtim_period * 3643 vif->bss_conf.beacon_int; 3644 u32 req_dur, delay; 3645 struct iwl_hs20_roc_req aux_roc_req = { 3646 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 3647 .id_and_color = 3648 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 3649 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 3650 }; 3651 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 3652 &aux_roc_req.channel_info); 3653 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 3654 3655 /* Set the channel info data */ 3656 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 3657 iwl_mvm_phy_band_from_nl80211(channel->band), 3658 PHY_VHT_CHANNEL_MODE20, 3659 0); 3660 3661 /* Set the time and duration */ 3662 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 3663 3664 delay = AUX_ROC_MIN_DELAY; 3665 req_dur = MSEC_TO_TU(duration); 3666 3667 /* 3668 * If we are associated we want the delay time to be at least one 3669 * dtim interval so that the FW can wait until after the DTIM and 3670 * then start the time event, this will potentially allow us to 3671 * remain off-channel for the max duration. 3672 * Since we want to use almost a whole dtim interval we would also 3673 * like the delay to be for 2-3 dtim intervals, in case there are 3674 * other time events with higher priority. 3675 */ 3676 if (vif->bss_conf.assoc) { 3677 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 3678 /* We cannot remain off-channel longer than the DTIM interval */ 3679 if (dtim_interval <= req_dur) { 3680 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 3681 if (req_dur <= AUX_ROC_MIN_DURATION) 3682 req_dur = dtim_interval - 3683 AUX_ROC_MIN_SAFETY_BUFFER; 3684 } 3685 } 3686 3687 tail->duration = cpu_to_le32(req_dur); 3688 tail->apply_time_max_delay = cpu_to_le32(delay); 3689 3690 IWL_DEBUG_TE(mvm, 3691 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 3692 channel->hw_value, req_dur, duration, delay, 3693 dtim_interval); 3694 /* Set the node address */ 3695 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 3696 3697 lockdep_assert_held(&mvm->mutex); 3698 3699 spin_lock_bh(&mvm->time_event_lock); 3700 3701 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 3702 spin_unlock_bh(&mvm->time_event_lock); 3703 return -EIO; 3704 } 3705 3706 te_data->vif = vif; 3707 te_data->duration = duration; 3708 te_data->id = HOT_SPOT_CMD; 3709 3710 spin_unlock_bh(&mvm->time_event_lock); 3711 3712 /* 3713 * Use a notification wait, which really just processes the 3714 * command response and doesn't wait for anything, in order 3715 * to be able to process the response and get the UID inside 3716 * the RX path. Using CMD_WANT_SKB doesn't work because it 3717 * stores the buffer and then wakes up this thread, by which 3718 * time another notification (that the time event started) 3719 * might already be processed unsuccessfully. 3720 */ 3721 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 3722 time_event_response, 3723 ARRAY_SIZE(time_event_response), 3724 iwl_mvm_rx_aux_roc, te_data); 3725 3726 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 3727 &aux_roc_req); 3728 3729 if (res) { 3730 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 3731 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 3732 goto out_clear_te; 3733 } 3734 3735 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 3736 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 3737 /* should never fail */ 3738 WARN_ON_ONCE(res); 3739 3740 if (res) { 3741 out_clear_te: 3742 spin_lock_bh(&mvm->time_event_lock); 3743 iwl_mvm_te_clear_data(mvm, te_data); 3744 spin_unlock_bh(&mvm->time_event_lock); 3745 } 3746 3747 return res; 3748 } 3749 3750 static int iwl_mvm_roc(struct ieee80211_hw *hw, 3751 struct ieee80211_vif *vif, 3752 struct ieee80211_channel *channel, 3753 int duration, 3754 enum ieee80211_roc_type type) 3755 { 3756 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3757 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3758 struct cfg80211_chan_def chandef; 3759 struct iwl_mvm_phy_ctxt *phy_ctxt; 3760 int ret, i; 3761 3762 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 3763 duration, type); 3764 3765 /* 3766 * Flush the done work, just in case it's still pending, so that 3767 * the work it does can complete and we can accept new frames. 3768 */ 3769 flush_work(&mvm->roc_done_wk); 3770 3771 mutex_lock(&mvm->mutex); 3772 3773 switch (vif->type) { 3774 case NL80211_IFTYPE_STATION: 3775 if (fw_has_capa(&mvm->fw->ucode_capa, 3776 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 3777 /* Use aux roc framework (HS20) */ 3778 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 3779 vif, duration); 3780 goto out_unlock; 3781 } 3782 IWL_ERR(mvm, "hotspot not supported\n"); 3783 ret = -EINVAL; 3784 goto out_unlock; 3785 case NL80211_IFTYPE_P2P_DEVICE: 3786 /* handle below */ 3787 break; 3788 default: 3789 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 3790 ret = -EINVAL; 3791 goto out_unlock; 3792 } 3793 3794 for (i = 0; i < NUM_PHY_CTX; i++) { 3795 phy_ctxt = &mvm->phy_ctxts[i]; 3796 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) 3797 continue; 3798 3799 if (phy_ctxt->ref && channel == phy_ctxt->channel) { 3800 /* 3801 * Unbind the P2P_DEVICE from the current PHY context, 3802 * and if the PHY context is not used remove it. 3803 */ 3804 ret = iwl_mvm_binding_remove_vif(mvm, vif); 3805 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 3806 goto out_unlock; 3807 3808 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 3809 3810 /* Bind the P2P_DEVICE to the current PHY Context */ 3811 mvmvif->phy_ctxt = phy_ctxt; 3812 3813 ret = iwl_mvm_binding_add_vif(mvm, vif); 3814 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 3815 goto out_unlock; 3816 3817 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 3818 goto schedule_time_event; 3819 } 3820 } 3821 3822 /* Need to update the PHY context only if the ROC channel changed */ 3823 if (channel == mvmvif->phy_ctxt->channel) 3824 goto schedule_time_event; 3825 3826 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 3827 3828 /* 3829 * Change the PHY context configuration as it is currently referenced 3830 * only by the P2P Device MAC 3831 */ 3832 if (mvmvif->phy_ctxt->ref == 1) { 3833 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, 3834 &chandef, 1, 1); 3835 if (ret) 3836 goto out_unlock; 3837 } else { 3838 /* 3839 * The PHY context is shared with other MACs. Need to remove the 3840 * P2P Device from the binding, allocate an new PHY context and 3841 * create a new binding 3842 */ 3843 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 3844 if (!phy_ctxt) { 3845 ret = -ENOSPC; 3846 goto out_unlock; 3847 } 3848 3849 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 3850 1, 1); 3851 if (ret) { 3852 IWL_ERR(mvm, "Failed to change PHY context\n"); 3853 goto out_unlock; 3854 } 3855 3856 /* Unbind the P2P_DEVICE from the current PHY context */ 3857 ret = iwl_mvm_binding_remove_vif(mvm, vif); 3858 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 3859 goto out_unlock; 3860 3861 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 3862 3863 /* Bind the P2P_DEVICE to the new allocated PHY context */ 3864 mvmvif->phy_ctxt = phy_ctxt; 3865 3866 ret = iwl_mvm_binding_add_vif(mvm, vif); 3867 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 3868 goto out_unlock; 3869 3870 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 3871 } 3872 3873 schedule_time_event: 3874 /* Schedule the time events */ 3875 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 3876 3877 out_unlock: 3878 mutex_unlock(&mvm->mutex); 3879 IWL_DEBUG_MAC80211(mvm, "leave\n"); 3880 return ret; 3881 } 3882 3883 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 3884 struct ieee80211_vif *vif) 3885 { 3886 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3887 3888 IWL_DEBUG_MAC80211(mvm, "enter\n"); 3889 3890 mutex_lock(&mvm->mutex); 3891 iwl_mvm_stop_roc(mvm, vif); 3892 mutex_unlock(&mvm->mutex); 3893 3894 IWL_DEBUG_MAC80211(mvm, "leave\n"); 3895 return 0; 3896 } 3897 3898 struct iwl_mvm_ftm_responder_iter_data { 3899 bool responder; 3900 struct ieee80211_chanctx_conf *ctx; 3901 }; 3902 3903 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 3904 struct ieee80211_vif *vif) 3905 { 3906 struct iwl_mvm_ftm_responder_iter_data *data = _data; 3907 3908 if (rcu_access_pointer(vif->chanctx_conf) == data->ctx && 3909 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 3910 data->responder = true; 3911 } 3912 3913 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 3914 struct ieee80211_chanctx_conf *ctx) 3915 { 3916 struct iwl_mvm_ftm_responder_iter_data data = { 3917 .responder = false, 3918 .ctx = ctx, 3919 }; 3920 3921 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 3922 IEEE80211_IFACE_ITER_NORMAL, 3923 iwl_mvm_ftm_responder_chanctx_iter, 3924 &data); 3925 return data.responder; 3926 } 3927 3928 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 3929 struct ieee80211_chanctx_conf *ctx) 3930 { 3931 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3932 struct iwl_mvm_phy_ctxt *phy_ctxt; 3933 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 3934 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 3935 int ret; 3936 3937 lockdep_assert_held(&mvm->mutex); 3938 3939 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 3940 3941 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 3942 if (!phy_ctxt) { 3943 ret = -ENOSPC; 3944 goto out; 3945 } 3946 3947 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 3948 ctx->rx_chains_static, 3949 ctx->rx_chains_dynamic); 3950 if (ret) { 3951 IWL_ERR(mvm, "Failed to add PHY context\n"); 3952 goto out; 3953 } 3954 3955 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 3956 *phy_ctxt_id = phy_ctxt->id; 3957 out: 3958 return ret; 3959 } 3960 3961 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 3962 struct ieee80211_chanctx_conf *ctx) 3963 { 3964 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3965 int ret; 3966 3967 mutex_lock(&mvm->mutex); 3968 ret = __iwl_mvm_add_chanctx(mvm, ctx); 3969 mutex_unlock(&mvm->mutex); 3970 3971 return ret; 3972 } 3973 3974 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 3975 struct ieee80211_chanctx_conf *ctx) 3976 { 3977 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3978 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3979 3980 lockdep_assert_held(&mvm->mutex); 3981 3982 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 3983 } 3984 3985 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 3986 struct ieee80211_chanctx_conf *ctx) 3987 { 3988 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3989 3990 mutex_lock(&mvm->mutex); 3991 __iwl_mvm_remove_chanctx(mvm, ctx); 3992 mutex_unlock(&mvm->mutex); 3993 } 3994 3995 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 3996 struct ieee80211_chanctx_conf *ctx, 3997 u32 changed) 3998 { 3999 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4000 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4001 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4002 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4003 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4004 4005 if (WARN_ONCE((phy_ctxt->ref > 1) && 4006 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4007 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4008 IEEE80211_CHANCTX_CHANGE_RADAR | 4009 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4010 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4011 phy_ctxt->ref, changed)) 4012 return; 4013 4014 mutex_lock(&mvm->mutex); 4015 4016 /* we are only changing the min_width, may be a noop */ 4017 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4018 if (phy_ctxt->width == def->width) 4019 goto out_unlock; 4020 4021 /* we are just toggling between 20_NOHT and 20 */ 4022 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4023 def->width <= NL80211_CHAN_WIDTH_20) 4024 goto out_unlock; 4025 } 4026 4027 iwl_mvm_bt_coex_vif_change(mvm); 4028 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4029 ctx->rx_chains_static, 4030 ctx->rx_chains_dynamic); 4031 4032 out_unlock: 4033 mutex_unlock(&mvm->mutex); 4034 } 4035 4036 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4037 struct ieee80211_vif *vif, 4038 struct ieee80211_chanctx_conf *ctx, 4039 bool switching_chanctx) 4040 { 4041 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4042 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4043 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4044 int ret; 4045 4046 lockdep_assert_held(&mvm->mutex); 4047 4048 mvmvif->phy_ctxt = phy_ctxt; 4049 4050 switch (vif->type) { 4051 case NL80211_IFTYPE_AP: 4052 /* only needed if we're switching chanctx (i.e. during CSA) */ 4053 if (switching_chanctx) { 4054 mvmvif->ap_ibss_active = true; 4055 break; 4056 } 4057 /* fall through */ 4058 case NL80211_IFTYPE_ADHOC: 4059 /* 4060 * The AP binding flow is handled as part of the start_ap flow 4061 * (in bss_info_changed), similarly for IBSS. 4062 */ 4063 ret = 0; 4064 goto out; 4065 case NL80211_IFTYPE_STATION: 4066 mvmvif->csa_bcn_pending = false; 4067 break; 4068 case NL80211_IFTYPE_MONITOR: 4069 /* always disable PS when a monitor interface is active */ 4070 mvmvif->ps_disabled = true; 4071 break; 4072 default: 4073 ret = -EINVAL; 4074 goto out; 4075 } 4076 4077 ret = iwl_mvm_binding_add_vif(mvm, vif); 4078 if (ret) 4079 goto out; 4080 4081 /* 4082 * Power state must be updated before quotas, 4083 * otherwise fw will complain. 4084 */ 4085 iwl_mvm_power_update_mac(mvm); 4086 4087 /* Setting the quota at this stage is only required for monitor 4088 * interfaces. For the other types, the bss_info changed flow 4089 * will handle quota settings. 4090 */ 4091 if (vif->type == NL80211_IFTYPE_MONITOR) { 4092 mvmvif->monitor_active = true; 4093 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4094 if (ret) 4095 goto out_remove_binding; 4096 4097 ret = iwl_mvm_add_snif_sta(mvm, vif); 4098 if (ret) 4099 goto out_remove_binding; 4100 4101 } 4102 4103 /* Handle binding during CSA */ 4104 if (vif->type == NL80211_IFTYPE_AP) { 4105 iwl_mvm_update_quotas(mvm, false, NULL); 4106 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4107 } 4108 4109 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { 4110 mvmvif->csa_bcn_pending = true; 4111 4112 if (!fw_has_capa(&mvm->fw->ucode_capa, 4113 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4114 u32 duration = 3 * vif->bss_conf.beacon_int; 4115 4116 /* Protect the session to make sure we hear the first 4117 * beacon on the new channel. 4118 */ 4119 iwl_mvm_protect_session(mvm, vif, duration, duration, 4120 vif->bss_conf.beacon_int / 2, 4121 true); 4122 } 4123 4124 iwl_mvm_update_quotas(mvm, false, NULL); 4125 } 4126 4127 goto out; 4128 4129 out_remove_binding: 4130 iwl_mvm_binding_remove_vif(mvm, vif); 4131 iwl_mvm_power_update_mac(mvm); 4132 out: 4133 if (ret) 4134 mvmvif->phy_ctxt = NULL; 4135 return ret; 4136 } 4137 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 4138 struct ieee80211_vif *vif, 4139 struct ieee80211_chanctx_conf *ctx) 4140 { 4141 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4142 int ret; 4143 4144 mutex_lock(&mvm->mutex); 4145 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); 4146 mutex_unlock(&mvm->mutex); 4147 4148 return ret; 4149 } 4150 4151 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 4152 struct ieee80211_vif *vif, 4153 struct ieee80211_chanctx_conf *ctx, 4154 bool switching_chanctx) 4155 { 4156 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4157 struct ieee80211_vif *disabled_vif = NULL; 4158 4159 lockdep_assert_held(&mvm->mutex); 4160 4161 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); 4162 4163 switch (vif->type) { 4164 case NL80211_IFTYPE_ADHOC: 4165 goto out; 4166 case NL80211_IFTYPE_MONITOR: 4167 mvmvif->monitor_active = false; 4168 mvmvif->ps_disabled = false; 4169 iwl_mvm_rm_snif_sta(mvm, vif); 4170 break; 4171 case NL80211_IFTYPE_AP: 4172 /* This part is triggered only during CSA */ 4173 if (!switching_chanctx || !mvmvif->ap_ibss_active) 4174 goto out; 4175 4176 mvmvif->csa_countdown = false; 4177 4178 /* Set CS bit on all the stations */ 4179 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 4180 4181 /* Save blocked iface, the timeout is set on the next beacon */ 4182 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 4183 4184 mvmvif->ap_ibss_active = false; 4185 break; 4186 case NL80211_IFTYPE_STATION: 4187 if (!switching_chanctx) 4188 break; 4189 4190 disabled_vif = vif; 4191 4192 if (!fw_has_capa(&mvm->fw->ucode_capa, 4193 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 4194 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 4195 break; 4196 default: 4197 break; 4198 } 4199 4200 iwl_mvm_update_quotas(mvm, false, disabled_vif); 4201 iwl_mvm_binding_remove_vif(mvm, vif); 4202 4203 out: 4204 mvmvif->phy_ctxt = NULL; 4205 iwl_mvm_power_update_mac(mvm); 4206 } 4207 4208 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 4209 struct ieee80211_vif *vif, 4210 struct ieee80211_chanctx_conf *ctx) 4211 { 4212 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4213 4214 mutex_lock(&mvm->mutex); 4215 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); 4216 mutex_unlock(&mvm->mutex); 4217 } 4218 4219 static int 4220 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 4221 struct ieee80211_vif_chanctx_switch *vifs) 4222 { 4223 int ret; 4224 4225 mutex_lock(&mvm->mutex); 4226 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4227 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 4228 4229 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 4230 if (ret) { 4231 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 4232 goto out_reassign; 4233 } 4234 4235 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4236 true); 4237 if (ret) { 4238 IWL_ERR(mvm, 4239 "failed to assign new_ctx during channel switch\n"); 4240 goto out_remove; 4241 } 4242 4243 /* we don't support TDLS during DCM - can be caused by channel switch */ 4244 if (iwl_mvm_phy_ctx_count(mvm) > 1) 4245 iwl_mvm_teardown_tdls_peers(mvm); 4246 4247 goto out; 4248 4249 out_remove: 4250 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 4251 4252 out_reassign: 4253 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 4254 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 4255 goto out_restart; 4256 } 4257 4258 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4259 true)) { 4260 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4261 goto out_restart; 4262 } 4263 4264 goto out; 4265 4266 out_restart: 4267 /* things keep failing, better restart the hw */ 4268 iwl_mvm_nic_restart(mvm, false); 4269 4270 out: 4271 mutex_unlock(&mvm->mutex); 4272 4273 return ret; 4274 } 4275 4276 static int 4277 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 4278 struct ieee80211_vif_chanctx_switch *vifs) 4279 { 4280 int ret; 4281 4282 mutex_lock(&mvm->mutex); 4283 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4284 4285 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4286 true); 4287 if (ret) { 4288 IWL_ERR(mvm, 4289 "failed to assign new_ctx during channel switch\n"); 4290 goto out_reassign; 4291 } 4292 4293 goto out; 4294 4295 out_reassign: 4296 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4297 true)) { 4298 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4299 goto out_restart; 4300 } 4301 4302 goto out; 4303 4304 out_restart: 4305 /* things keep failing, better restart the hw */ 4306 iwl_mvm_nic_restart(mvm, false); 4307 4308 out: 4309 mutex_unlock(&mvm->mutex); 4310 4311 return ret; 4312 } 4313 4314 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 4315 struct ieee80211_vif_chanctx_switch *vifs, 4316 int n_vifs, 4317 enum ieee80211_chanctx_switch_mode mode) 4318 { 4319 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4320 int ret; 4321 4322 /* we only support a single-vif right now */ 4323 if (n_vifs > 1) 4324 return -EOPNOTSUPP; 4325 4326 switch (mode) { 4327 case CHANCTX_SWMODE_SWAP_CONTEXTS: 4328 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); 4329 break; 4330 case CHANCTX_SWMODE_REASSIGN_VIF: 4331 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); 4332 break; 4333 default: 4334 ret = -EOPNOTSUPP; 4335 break; 4336 } 4337 4338 return ret; 4339 } 4340 4341 static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 4342 { 4343 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4344 4345 return mvm->ibss_manager; 4346 } 4347 4348 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, 4349 struct ieee80211_sta *sta, 4350 bool set) 4351 { 4352 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4353 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4354 4355 if (!mvm_sta || !mvm_sta->vif) { 4356 IWL_ERR(mvm, "Station is not associated to a vif\n"); 4357 return -EINVAL; 4358 } 4359 4360 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); 4361 } 4362 4363 #ifdef CONFIG_NL80211_TESTMODE 4364 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 4365 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 4366 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 4367 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 4368 }; 4369 4370 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 4371 struct ieee80211_vif *vif, 4372 void *data, int len) 4373 { 4374 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 4375 int err; 4376 u32 noa_duration; 4377 4378 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 4379 iwl_mvm_tm_policy, NULL); 4380 if (err) 4381 return err; 4382 4383 if (!tb[IWL_MVM_TM_ATTR_CMD]) 4384 return -EINVAL; 4385 4386 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 4387 case IWL_MVM_TM_CMD_SET_NOA: 4388 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 4389 !vif->bss_conf.enable_beacon || 4390 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 4391 return -EINVAL; 4392 4393 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 4394 if (noa_duration >= vif->bss_conf.beacon_int) 4395 return -EINVAL; 4396 4397 mvm->noa_duration = noa_duration; 4398 mvm->noa_vif = vif; 4399 4400 return iwl_mvm_update_quotas(mvm, true, NULL); 4401 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 4402 /* must be associated client vif - ignore authorized */ 4403 if (!vif || vif->type != NL80211_IFTYPE_STATION || 4404 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || 4405 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 4406 return -EINVAL; 4407 4408 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 4409 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 4410 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4411 } 4412 4413 return -EOPNOTSUPP; 4414 } 4415 4416 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 4417 struct ieee80211_vif *vif, 4418 void *data, int len) 4419 { 4420 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4421 int err; 4422 4423 mutex_lock(&mvm->mutex); 4424 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 4425 mutex_unlock(&mvm->mutex); 4426 4427 return err; 4428 } 4429 #endif 4430 4431 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, 4432 struct ieee80211_vif *vif, 4433 struct ieee80211_channel_switch *chsw) 4434 { 4435 /* By implementing this operation, we prevent mac80211 from 4436 * starting its own channel switch timer, so that we can call 4437 * ieee80211_chswitch_done() ourselves at the right time 4438 * (which is when the absence time event starts). 4439 */ 4440 4441 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 4442 "dummy channel switch op\n"); 4443 } 4444 4445 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 4446 struct ieee80211_vif *vif, 4447 struct ieee80211_channel_switch *chsw) 4448 { 4449 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4450 struct iwl_chan_switch_te_cmd cmd = { 4451 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4452 mvmvif->color)), 4453 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4454 .tsf = cpu_to_le32(chsw->timestamp), 4455 .cs_count = chsw->count, 4456 .cs_mode = chsw->block_tx, 4457 }; 4458 4459 lockdep_assert_held(&mvm->mutex); 4460 4461 if (chsw->delay) 4462 cmd.cs_delayed_bcn_count = 4463 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 4464 4465 return iwl_mvm_send_cmd_pdu(mvm, 4466 WIDE_ID(MAC_CONF_GROUP, 4467 CHANNEL_SWITCH_TIME_EVENT_CMD), 4468 0, sizeof(cmd), &cmd); 4469 } 4470 4471 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 4472 struct ieee80211_vif *vif, 4473 struct ieee80211_channel_switch *chsw) 4474 { 4475 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4476 u32 apply_time; 4477 4478 /* Schedule the time event to a bit before beacon 1, 4479 * to make sure we're in the new channel when the 4480 * GO/AP arrives. In case count <= 1 immediately schedule the 4481 * TE (this might result with some packet loss or connection 4482 * loss). 4483 */ 4484 if (chsw->count <= 1) 4485 apply_time = 0; 4486 else 4487 apply_time = chsw->device_timestamp + 4488 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 4489 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 4490 4491 if (chsw->block_tx) 4492 iwl_mvm_csa_client_absent(mvm, vif); 4493 4494 if (mvmvif->bf_data.bf_enabled) { 4495 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4496 4497 if (ret) 4498 return ret; 4499 } 4500 4501 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 4502 apply_time); 4503 4504 return 0; 4505 } 4506 4507 #define IWL_MAX_CSA_BLOCK_TX 1500 4508 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 4509 struct ieee80211_vif *vif, 4510 struct ieee80211_channel_switch *chsw) 4511 { 4512 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4513 struct ieee80211_vif *csa_vif; 4514 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4515 int ret; 4516 4517 mutex_lock(&mvm->mutex); 4518 4519 mvmvif->csa_failed = false; 4520 4521 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 4522 chsw->chandef.center_freq1); 4523 4524 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 4525 ieee80211_vif_to_wdev(vif), 4526 FW_DBG_TRIGGER_CHANNEL_SWITCH); 4527 4528 switch (vif->type) { 4529 case NL80211_IFTYPE_AP: 4530 csa_vif = 4531 rcu_dereference_protected(mvm->csa_vif, 4532 lockdep_is_held(&mvm->mutex)); 4533 if (WARN_ONCE(csa_vif && csa_vif->csa_active, 4534 "Another CSA is already in progress")) { 4535 ret = -EBUSY; 4536 goto out_unlock; 4537 } 4538 4539 /* we still didn't unblock tx. prevent new CS meanwhile */ 4540 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 4541 lockdep_is_held(&mvm->mutex))) { 4542 ret = -EBUSY; 4543 goto out_unlock; 4544 } 4545 4546 rcu_assign_pointer(mvm->csa_vif, vif); 4547 4548 if (WARN_ONCE(mvmvif->csa_countdown, 4549 "Previous CSA countdown didn't complete")) { 4550 ret = -EBUSY; 4551 goto out_unlock; 4552 } 4553 4554 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 4555 4556 break; 4557 case NL80211_IFTYPE_STATION: 4558 if (chsw->block_tx) { 4559 /* 4560 * In case of undetermined / long time with immediate 4561 * quiet monitor status to gracefully disconnect 4562 */ 4563 if (!chsw->count || 4564 chsw->count * vif->bss_conf.beacon_int > 4565 IWL_MAX_CSA_BLOCK_TX) 4566 schedule_delayed_work(&mvmvif->csa_work, 4567 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 4568 } 4569 4570 if (!fw_has_capa(&mvm->fw->ucode_capa, 4571 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4572 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 4573 if (ret) 4574 goto out_unlock; 4575 } else { 4576 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 4577 } 4578 4579 mvmvif->csa_count = chsw->count; 4580 mvmvif->csa_misbehave = false; 4581 break; 4582 default: 4583 break; 4584 } 4585 4586 mvmvif->ps_disabled = true; 4587 4588 ret = iwl_mvm_power_update_ps(mvm); 4589 if (ret) 4590 goto out_unlock; 4591 4592 /* we won't be on this channel any longer */ 4593 iwl_mvm_teardown_tdls_peers(mvm); 4594 4595 out_unlock: 4596 mutex_unlock(&mvm->mutex); 4597 4598 return ret; 4599 } 4600 4601 static void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 4602 struct ieee80211_vif *vif, 4603 struct ieee80211_channel_switch *chsw) 4604 { 4605 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4606 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4607 struct iwl_chan_switch_te_cmd cmd = { 4608 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4609 mvmvif->color)), 4610 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 4611 .tsf = cpu_to_le32(chsw->timestamp), 4612 .cs_count = chsw->count, 4613 .cs_mode = chsw->block_tx, 4614 }; 4615 4616 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 4617 return; 4618 4619 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 4620 if (mvmvif->csa_misbehave) { 4621 /* Second time, give up on this AP*/ 4622 iwl_mvm_abort_channel_switch(hw, vif); 4623 ieee80211_chswitch_done(vif, false); 4624 mvmvif->csa_misbehave = false; 4625 return; 4626 } 4627 mvmvif->csa_misbehave = true; 4628 } 4629 mvmvif->csa_count = chsw->count; 4630 4631 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d\n", mvmvif->id); 4632 4633 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 4634 WIDE_ID(MAC_CONF_GROUP, 4635 CHANNEL_SWITCH_TIME_EVENT_CMD), 4636 CMD_ASYNC, sizeof(cmd), &cmd)); 4637 } 4638 4639 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 4640 { 4641 int i; 4642 4643 if (!iwl_mvm_has_new_tx_api(mvm)) { 4644 if (drop) { 4645 mutex_lock(&mvm->mutex); 4646 iwl_mvm_flush_tx_path(mvm, 4647 iwl_mvm_flushable_queues(mvm) & queues, 0); 4648 mutex_unlock(&mvm->mutex); 4649 } else { 4650 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 4651 } 4652 return; 4653 } 4654 4655 mutex_lock(&mvm->mutex); 4656 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 4657 struct ieee80211_sta *sta; 4658 4659 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4660 lockdep_is_held(&mvm->mutex)); 4661 if (IS_ERR_OR_NULL(sta)) 4662 continue; 4663 4664 if (drop) 4665 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF, 0); 4666 else 4667 iwl_mvm_wait_sta_queues_empty(mvm, 4668 iwl_mvm_sta_from_mac80211(sta)); 4669 } 4670 mutex_unlock(&mvm->mutex); 4671 } 4672 4673 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, 4674 struct ieee80211_vif *vif, u32 queues, bool drop) 4675 { 4676 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4677 struct iwl_mvm_vif *mvmvif; 4678 struct iwl_mvm_sta *mvmsta; 4679 struct ieee80211_sta *sta; 4680 int i; 4681 u32 msk = 0; 4682 4683 if (!vif) { 4684 iwl_mvm_flush_no_vif(mvm, queues, drop); 4685 return; 4686 } 4687 4688 if (vif->type != NL80211_IFTYPE_STATION) 4689 return; 4690 4691 /* Make sure we're done with the deferred traffic before flushing */ 4692 flush_work(&mvm->add_stream_wk); 4693 4694 mutex_lock(&mvm->mutex); 4695 mvmvif = iwl_mvm_vif_from_mac80211(vif); 4696 4697 /* flush the AP-station and all TDLS peers */ 4698 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 4699 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4700 lockdep_is_held(&mvm->mutex)); 4701 if (IS_ERR_OR_NULL(sta)) 4702 continue; 4703 4704 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4705 if (mvmsta->vif != vif) 4706 continue; 4707 4708 /* make sure only TDLS peers or the AP are flushed */ 4709 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); 4710 4711 if (drop) { 4712 if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0)) 4713 IWL_ERR(mvm, "flush request fail\n"); 4714 } else { 4715 msk |= mvmsta->tfd_queue_msk; 4716 if (iwl_mvm_has_new_tx_api(mvm)) 4717 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 4718 } 4719 } 4720 4721 mutex_unlock(&mvm->mutex); 4722 4723 /* this can take a while, and we may need/want other operations 4724 * to succeed while doing this, so do it without the mutex held 4725 */ 4726 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 4727 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 4728 } 4729 4730 static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 4731 struct survey_info *survey) 4732 { 4733 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4734 int ret; 4735 4736 memset(survey, 0, sizeof(*survey)); 4737 4738 /* only support global statistics right now */ 4739 if (idx != 0) 4740 return -ENOENT; 4741 4742 if (!fw_has_capa(&mvm->fw->ucode_capa, 4743 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 4744 return -ENOENT; 4745 4746 mutex_lock(&mvm->mutex); 4747 4748 if (iwl_mvm_firmware_running(mvm)) { 4749 ret = iwl_mvm_request_statistics(mvm, false); 4750 if (ret) 4751 goto out; 4752 } 4753 4754 survey->filled = SURVEY_INFO_TIME | 4755 SURVEY_INFO_TIME_RX | 4756 SURVEY_INFO_TIME_TX | 4757 SURVEY_INFO_TIME_SCAN; 4758 survey->time = mvm->accu_radio_stats.on_time_rf + 4759 mvm->radio_stats.on_time_rf; 4760 do_div(survey->time, USEC_PER_MSEC); 4761 4762 survey->time_rx = mvm->accu_radio_stats.rx_time + 4763 mvm->radio_stats.rx_time; 4764 do_div(survey->time_rx, USEC_PER_MSEC); 4765 4766 survey->time_tx = mvm->accu_radio_stats.tx_time + 4767 mvm->radio_stats.tx_time; 4768 do_div(survey->time_tx, USEC_PER_MSEC); 4769 4770 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 4771 mvm->radio_stats.on_time_scan; 4772 do_div(survey->time_scan, USEC_PER_MSEC); 4773 4774 ret = 0; 4775 out: 4776 mutex_unlock(&mvm->mutex); 4777 return ret; 4778 } 4779 4780 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 4781 { 4782 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 4783 case RATE_MCS_CHAN_WIDTH_20: 4784 rinfo->bw = RATE_INFO_BW_20; 4785 break; 4786 case RATE_MCS_CHAN_WIDTH_40: 4787 rinfo->bw = RATE_INFO_BW_40; 4788 break; 4789 case RATE_MCS_CHAN_WIDTH_80: 4790 rinfo->bw = RATE_INFO_BW_80; 4791 break; 4792 case RATE_MCS_CHAN_WIDTH_160: 4793 rinfo->bw = RATE_INFO_BW_160; 4794 break; 4795 } 4796 4797 if (rate_n_flags & RATE_MCS_HT_MSK) { 4798 rinfo->flags |= RATE_INFO_FLAGS_MCS; 4799 rinfo->mcs = u32_get_bits(rate_n_flags, RATE_HT_MCS_INDEX_MSK); 4800 rinfo->nss = u32_get_bits(rate_n_flags, 4801 RATE_HT_MCS_NSS_MSK) + 1; 4802 if (rate_n_flags & RATE_MCS_SGI_MSK) 4803 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 4804 } else if (rate_n_flags & RATE_MCS_VHT_MSK) { 4805 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 4806 rinfo->mcs = u32_get_bits(rate_n_flags, 4807 RATE_VHT_MCS_RATE_CODE_MSK); 4808 rinfo->nss = u32_get_bits(rate_n_flags, 4809 RATE_VHT_MCS_NSS_MSK) + 1; 4810 if (rate_n_flags & RATE_MCS_SGI_MSK) 4811 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 4812 } else if (rate_n_flags & RATE_MCS_HE_MSK) { 4813 u32 gi_ltf = u32_get_bits(rate_n_flags, 4814 RATE_MCS_HE_GI_LTF_MSK); 4815 4816 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 4817 rinfo->mcs = u32_get_bits(rate_n_flags, 4818 RATE_VHT_MCS_RATE_CODE_MSK); 4819 rinfo->nss = u32_get_bits(rate_n_flags, 4820 RATE_VHT_MCS_NSS_MSK) + 1; 4821 4822 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 4823 rinfo->bw = RATE_INFO_BW_HE_RU; 4824 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 4825 } 4826 4827 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 4828 case RATE_MCS_HE_TYPE_SU: 4829 case RATE_MCS_HE_TYPE_EXT_SU: 4830 if (gi_ltf == 0 || gi_ltf == 1) 4831 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 4832 else if (gi_ltf == 2) 4833 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 4834 else if (rate_n_flags & RATE_MCS_SGI_MSK) 4835 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 4836 else 4837 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 4838 break; 4839 case RATE_MCS_HE_TYPE_MU: 4840 if (gi_ltf == 0 || gi_ltf == 1) 4841 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 4842 else if (gi_ltf == 2) 4843 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 4844 else 4845 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 4846 break; 4847 case RATE_MCS_HE_TYPE_TRIG: 4848 if (gi_ltf == 0 || gi_ltf == 1) 4849 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 4850 else 4851 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 4852 break; 4853 } 4854 4855 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 4856 rinfo->he_dcm = 1; 4857 } else { 4858 switch (u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK)) { 4859 case IWL_RATE_1M_PLCP: 4860 rinfo->legacy = 10; 4861 break; 4862 case IWL_RATE_2M_PLCP: 4863 rinfo->legacy = 20; 4864 break; 4865 case IWL_RATE_5M_PLCP: 4866 rinfo->legacy = 55; 4867 break; 4868 case IWL_RATE_11M_PLCP: 4869 rinfo->legacy = 110; 4870 break; 4871 case IWL_RATE_6M_PLCP: 4872 rinfo->legacy = 60; 4873 break; 4874 case IWL_RATE_9M_PLCP: 4875 rinfo->legacy = 90; 4876 break; 4877 case IWL_RATE_12M_PLCP: 4878 rinfo->legacy = 120; 4879 break; 4880 case IWL_RATE_18M_PLCP: 4881 rinfo->legacy = 180; 4882 break; 4883 case IWL_RATE_24M_PLCP: 4884 rinfo->legacy = 240; 4885 break; 4886 case IWL_RATE_36M_PLCP: 4887 rinfo->legacy = 360; 4888 break; 4889 case IWL_RATE_48M_PLCP: 4890 rinfo->legacy = 480; 4891 break; 4892 case IWL_RATE_54M_PLCP: 4893 rinfo->legacy = 540; 4894 break; 4895 } 4896 } 4897 } 4898 4899 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 4900 struct ieee80211_vif *vif, 4901 struct ieee80211_sta *sta, 4902 struct station_info *sinfo) 4903 { 4904 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4905 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4906 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 4907 4908 if (mvmsta->avg_energy) { 4909 sinfo->signal_avg = mvmsta->avg_energy; 4910 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 4911 } 4912 4913 if (iwl_mvm_has_tlc_offload(mvm)) { 4914 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw; 4915 4916 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 4917 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 4918 } 4919 4920 /* if beacon filtering isn't on mac80211 does it anyway */ 4921 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 4922 return; 4923 4924 if (!vif->bss_conf.assoc) 4925 return; 4926 4927 mutex_lock(&mvm->mutex); 4928 4929 if (mvmvif->ap_sta_id != mvmsta->sta_id) 4930 goto unlock; 4931 4932 if (iwl_mvm_request_statistics(mvm, false)) 4933 goto unlock; 4934 4935 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + 4936 mvmvif->beacon_stats.accu_num_beacons; 4937 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 4938 if (mvmvif->beacon_stats.avg_signal) { 4939 /* firmware only reports a value after RXing a few beacons */ 4940 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; 4941 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 4942 } 4943 unlock: 4944 mutex_unlock(&mvm->mutex); 4945 } 4946 4947 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 4948 struct ieee80211_vif *vif, 4949 const struct ieee80211_event *event) 4950 { 4951 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 4952 do { \ 4953 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 4954 break; \ 4955 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 4956 } while (0) 4957 4958 struct iwl_fw_dbg_trigger_tlv *trig; 4959 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 4960 4961 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 4962 FW_DBG_TRIGGER_MLME); 4963 if (!trig) 4964 return; 4965 4966 trig_mlme = (void *)trig->data; 4967 4968 if (event->u.mlme.data == ASSOC_EVENT) { 4969 if (event->u.mlme.status == MLME_DENIED) 4970 CHECK_MLME_TRIGGER(stop_assoc_denied, 4971 "DENIED ASSOC: reason %d", 4972 event->u.mlme.reason); 4973 else if (event->u.mlme.status == MLME_TIMEOUT) 4974 CHECK_MLME_TRIGGER(stop_assoc_timeout, 4975 "ASSOC TIMEOUT"); 4976 } else if (event->u.mlme.data == AUTH_EVENT) { 4977 if (event->u.mlme.status == MLME_DENIED) 4978 CHECK_MLME_TRIGGER(stop_auth_denied, 4979 "DENIED AUTH: reason %d", 4980 event->u.mlme.reason); 4981 else if (event->u.mlme.status == MLME_TIMEOUT) 4982 CHECK_MLME_TRIGGER(stop_auth_timeout, 4983 "AUTH TIMEOUT"); 4984 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 4985 CHECK_MLME_TRIGGER(stop_rx_deauth, 4986 "DEAUTH RX %d", event->u.mlme.reason); 4987 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 4988 CHECK_MLME_TRIGGER(stop_tx_deauth, 4989 "DEAUTH TX %d", event->u.mlme.reason); 4990 } 4991 #undef CHECK_MLME_TRIGGER 4992 } 4993 4994 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 4995 struct ieee80211_vif *vif, 4996 const struct ieee80211_event *event) 4997 { 4998 struct iwl_fw_dbg_trigger_tlv *trig; 4999 struct iwl_fw_dbg_trigger_ba *ba_trig; 5000 5001 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5002 FW_DBG_TRIGGER_BA); 5003 if (!trig) 5004 return; 5005 5006 ba_trig = (void *)trig->data; 5007 5008 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 5009 return; 5010 5011 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 5012 "BAR received from %pM, tid %d, ssn %d", 5013 event->u.ba.sta->addr, event->u.ba.tid, 5014 event->u.ba.ssn); 5015 } 5016 5017 static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 5018 struct ieee80211_vif *vif, 5019 const struct ieee80211_event *event) 5020 { 5021 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5022 5023 switch (event->type) { 5024 case MLME_EVENT: 5025 iwl_mvm_event_mlme_callback(mvm, vif, event); 5026 break; 5027 case BAR_RX_EVENT: 5028 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 5029 break; 5030 case BA_FRAME_TIMEOUT: 5031 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 5032 event->u.ba.tid); 5033 break; 5034 default: 5035 break; 5036 } 5037 } 5038 5039 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 5040 struct iwl_mvm_internal_rxq_notif *notif, 5041 u32 size) 5042 { 5043 u32 qmask = BIT(mvm->trans->num_rx_queues) - 1; 5044 int ret; 5045 5046 5047 if (!iwl_mvm_has_new_rx_api(mvm)) 5048 return; 5049 5050 if (notif->sync) { 5051 notif->cookie = mvm->queue_sync_cookie; 5052 atomic_set(&mvm->queue_sync_counter, 5053 mvm->trans->num_rx_queues); 5054 } 5055 5056 ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, 5057 size, !notif->sync); 5058 if (ret) { 5059 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 5060 goto out; 5061 } 5062 5063 if (notif->sync) { 5064 lockdep_assert_held(&mvm->mutex); 5065 ret = wait_event_timeout(mvm->rx_sync_waitq, 5066 atomic_read(&mvm->queue_sync_counter) == 0 || 5067 iwl_mvm_is_radio_killed(mvm), 5068 HZ); 5069 WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm)); 5070 } 5071 5072 out: 5073 atomic_set(&mvm->queue_sync_counter, 0); 5074 if (notif->sync) 5075 mvm->queue_sync_cookie++; 5076 } 5077 5078 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 5079 { 5080 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5081 struct iwl_mvm_internal_rxq_notif data = { 5082 .type = IWL_MVM_RXQ_EMPTY, 5083 .sync = 1, 5084 }; 5085 5086 mutex_lock(&mvm->mutex); 5087 iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data)); 5088 mutex_unlock(&mvm->mutex); 5089 } 5090 5091 static int 5092 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 5093 struct ieee80211_vif *vif, 5094 struct cfg80211_ftm_responder_stats *stats) 5095 { 5096 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5097 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5098 5099 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 5100 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 5101 return -EINVAL; 5102 5103 mutex_lock(&mvm->mutex); 5104 *stats = mvm->ftm_resp_stats; 5105 mutex_unlock(&mvm->mutex); 5106 5107 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 5108 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 5109 BIT(NL80211_FTM_STATS_FAILED_NUM) | 5110 BIT(NL80211_FTM_STATS_ASAP_NUM) | 5111 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 5112 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 5113 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 5114 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 5115 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 5116 5117 return 0; 5118 } 5119 5120 static int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, 5121 struct ieee80211_vif *vif, 5122 struct cfg80211_pmsr_request *request) 5123 { 5124 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5125 int ret; 5126 5127 mutex_lock(&mvm->mutex); 5128 ret = iwl_mvm_ftm_start(mvm, vif, request); 5129 mutex_unlock(&mvm->mutex); 5130 5131 return ret; 5132 } 5133 5134 static void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, 5135 struct ieee80211_vif *vif, 5136 struct cfg80211_pmsr_request *request) 5137 { 5138 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5139 5140 mutex_lock(&mvm->mutex); 5141 iwl_mvm_ftm_abort(mvm, request); 5142 mutex_unlock(&mvm->mutex); 5143 } 5144 5145 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 5146 { 5147 u8 protocol = ip_hdr(skb)->protocol; 5148 5149 if (!IS_ENABLED(CONFIG_INET)) 5150 return false; 5151 5152 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 5153 } 5154 5155 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 5156 struct sk_buff *head, 5157 struct sk_buff *skb) 5158 { 5159 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5160 5161 /* For now don't aggregate IPv6 in AMSDU */ 5162 if (skb->protocol != htons(ETH_P_IP)) 5163 return false; 5164 5165 if (!iwl_mvm_is_csum_supported(mvm)) 5166 return true; 5167 5168 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 5169 } 5170 5171 const struct ieee80211_ops iwl_mvm_hw_ops = { 5172 .tx = iwl_mvm_mac_tx, 5173 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 5174 .ampdu_action = iwl_mvm_mac_ampdu_action, 5175 .get_antenna = iwl_mvm_op_get_antenna, 5176 .start = iwl_mvm_mac_start, 5177 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 5178 .stop = iwl_mvm_mac_stop, 5179 .add_interface = iwl_mvm_mac_add_interface, 5180 .remove_interface = iwl_mvm_mac_remove_interface, 5181 .config = iwl_mvm_mac_config, 5182 .prepare_multicast = iwl_mvm_prepare_multicast, 5183 .configure_filter = iwl_mvm_configure_filter, 5184 .config_iface_filter = iwl_mvm_config_iface_filter, 5185 .bss_info_changed = iwl_mvm_bss_info_changed, 5186 .hw_scan = iwl_mvm_mac_hw_scan, 5187 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 5188 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 5189 .sta_state = iwl_mvm_mac_sta_state, 5190 .sta_notify = iwl_mvm_mac_sta_notify, 5191 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 5192 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 5193 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 5194 .sta_rc_update = iwl_mvm_sta_rc_update, 5195 .conf_tx = iwl_mvm_mac_conf_tx, 5196 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 5197 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 5198 .flush = iwl_mvm_mac_flush, 5199 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 5200 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 5201 .set_key = iwl_mvm_mac_set_key, 5202 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 5203 .remain_on_channel = iwl_mvm_roc, 5204 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 5205 .add_chanctx = iwl_mvm_add_chanctx, 5206 .remove_chanctx = iwl_mvm_remove_chanctx, 5207 .change_chanctx = iwl_mvm_change_chanctx, 5208 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 5209 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 5210 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 5211 5212 .start_ap = iwl_mvm_start_ap_ibss, 5213 .stop_ap = iwl_mvm_stop_ap_ibss, 5214 .join_ibss = iwl_mvm_start_ap_ibss, 5215 .leave_ibss = iwl_mvm_stop_ap_ibss, 5216 5217 .tx_last_beacon = iwl_mvm_tx_last_beacon, 5218 5219 .set_tim = iwl_mvm_set_tim, 5220 5221 .channel_switch = iwl_mvm_channel_switch, 5222 .pre_channel_switch = iwl_mvm_pre_channel_switch, 5223 .post_channel_switch = iwl_mvm_post_channel_switch, 5224 .abort_channel_switch = iwl_mvm_abort_channel_switch, 5225 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 5226 5227 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 5228 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 5229 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 5230 5231 .event_callback = iwl_mvm_mac_event_callback, 5232 5233 .sync_rx_queues = iwl_mvm_sync_rx_queues, 5234 5235 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 5236 5237 #ifdef CONFIG_PM_SLEEP 5238 /* look at d3.c */ 5239 .suspend = iwl_mvm_suspend, 5240 .resume = iwl_mvm_resume, 5241 .set_wakeup = iwl_mvm_set_wakeup, 5242 .set_rekey_data = iwl_mvm_set_rekey_data, 5243 #if IS_ENABLED(CONFIG_IPV6) 5244 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 5245 #endif 5246 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 5247 #endif 5248 .get_survey = iwl_mvm_mac_get_survey, 5249 .sta_statistics = iwl_mvm_mac_sta_statistics, 5250 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 5251 .start_pmsr = iwl_mvm_start_pmsr, 5252 .abort_pmsr = iwl_mvm_abort_pmsr, 5253 5254 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 5255 #ifdef CONFIG_IWLWIFI_DEBUGFS 5256 .sta_add_debugfs = iwl_mvm_sta_add_debugfs, 5257 #endif 5258 }; 5259