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 if (iwlwifi_mod_params.swcrypto) 479 IWL_ERR(mvm, 480 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 481 if (!iwlwifi_mod_params.bt_coex_active) 482 IWL_ERR(mvm, 483 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 484 485 ieee80211_hw_set(hw, MFP_CAPABLE); 486 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 487 hw->wiphy->n_cipher_suites++; 488 if (iwl_mvm_has_new_rx_api(mvm)) { 489 mvm->ciphers[hw->wiphy->n_cipher_suites] = 490 WLAN_CIPHER_SUITE_BIP_GMAC_128; 491 hw->wiphy->n_cipher_suites++; 492 mvm->ciphers[hw->wiphy->n_cipher_suites] = 493 WLAN_CIPHER_SUITE_BIP_GMAC_256; 494 hw->wiphy->n_cipher_suites++; 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 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 701 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 702 WIPHY_WOWLAN_4WAY_HANDSHAKE; 703 704 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 705 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 706 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 707 mvm->wowlan.max_nd_match_sets = 708 iwl_umac_scan_get_max_profiles(mvm->fw); 709 hw->wiphy->wowlan = &mvm->wowlan; 710 } 711 #endif 712 713 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 714 /* assign default bcast filtering configuration */ 715 mvm->bcast_filters = iwl_mvm_default_bcast_filters; 716 #endif 717 718 ret = iwl_mvm_leds_init(mvm); 719 if (ret) 720 return ret; 721 722 if (fw_has_capa(&mvm->fw->ucode_capa, 723 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 724 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 725 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 726 ieee80211_hw_set(hw, TDLS_WIDER_BW); 727 } 728 729 if (fw_has_capa(&mvm->fw->ucode_capa, 730 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 731 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 732 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 733 } 734 735 hw->netdev_features |= mvm->cfg->features; 736 if (!iwl_mvm_is_csum_supported(mvm)) { 737 hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS | 738 NETIF_F_RXCSUM); 739 /* We may support SW TX CSUM */ 740 if (IWL_MVM_SW_TX_CSUM_OFFLOAD) 741 hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS; 742 } 743 744 if (mvm->cfg->vht_mu_mimo_supported) 745 wiphy_ext_feature_set(hw->wiphy, 746 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 747 748 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 749 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 750 751 ret = ieee80211_register_hw(mvm->hw); 752 if (ret) { 753 iwl_mvm_leds_exit(mvm); 754 } 755 756 return ret; 757 } 758 759 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 760 struct ieee80211_sta *sta) 761 { 762 if (likely(sta)) { 763 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 764 return; 765 } else { 766 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 767 return; 768 } 769 770 ieee80211_free_txskb(mvm->hw, skb); 771 } 772 773 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 774 struct ieee80211_tx_control *control, 775 struct sk_buff *skb) 776 { 777 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 778 struct ieee80211_sta *sta = control->sta; 779 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 780 struct ieee80211_hdr *hdr = (void *)skb->data; 781 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 782 IEEE80211_TX_CTL_TX_OFFCHAN; 783 784 if (iwl_mvm_is_radio_killed(mvm)) { 785 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 786 goto drop; 787 } 788 789 if (offchannel && 790 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 791 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 792 goto drop; 793 794 /* treat non-bufferable MMPDUs on AP interfaces as broadcast */ 795 if ((info->control.vif->type == NL80211_IFTYPE_AP || 796 info->control.vif->type == NL80211_IFTYPE_ADHOC) && 797 ieee80211_is_mgmt(hdr->frame_control) && 798 !ieee80211_is_bufferable_mmpdu(hdr->frame_control)) 799 sta = NULL; 800 801 /* If there is no sta, and it's not offchannel - send through AP */ 802 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 803 !offchannel) { 804 struct iwl_mvm_vif *mvmvif = 805 iwl_mvm_vif_from_mac80211(info->control.vif); 806 u8 ap_sta_id = READ_ONCE(mvmvif->ap_sta_id); 807 808 if (ap_sta_id < IWL_MVM_STATION_COUNT) { 809 /* mac80211 holds rcu read lock */ 810 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 811 if (IS_ERR_OR_NULL(sta)) 812 goto drop; 813 } 814 } 815 816 iwl_mvm_tx_skb(mvm, skb, sta); 817 return; 818 drop: 819 ieee80211_free_txskb(hw, skb); 820 } 821 822 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 823 { 824 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 825 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 826 struct sk_buff *skb = NULL; 827 828 /* 829 * No need for threads to be pending here, they can leave the first 830 * taker all the work. 831 * 832 * mvmtxq->tx_request logic: 833 * 834 * If 0, no one is currently TXing, set to 1 to indicate current thread 835 * will now start TX and other threads should quit. 836 * 837 * If 1, another thread is currently TXing, set to 2 to indicate to 838 * that thread that there was another request. Since that request may 839 * have raced with the check whether the queue is empty, the TXing 840 * thread should check the queue's status one more time before leaving. 841 * This check is done in order to not leave any TX hanging in the queue 842 * until the next TX invocation (which may not even happen). 843 * 844 * If 2, another thread is currently TXing, and it will already double 845 * check the queue, so do nothing. 846 */ 847 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 848 return; 849 850 rcu_read_lock(); 851 do { 852 while (likely(!mvmtxq->stopped && 853 (mvm->trans->system_pm_mode == 854 IWL_PLAT_PM_MODE_DISABLED))) { 855 skb = ieee80211_tx_dequeue(hw, txq); 856 857 if (!skb) { 858 if (txq->sta) 859 IWL_DEBUG_TX(mvm, 860 "TXQ of sta %pM tid %d is now empty\n", 861 txq->sta->addr, 862 txq->tid); 863 break; 864 } 865 866 iwl_mvm_tx_skb(mvm, skb, txq->sta); 867 } 868 } while (atomic_dec_return(&mvmtxq->tx_request)); 869 rcu_read_unlock(); 870 } 871 872 static void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 873 struct ieee80211_txq *txq) 874 { 875 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 876 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 877 878 /* 879 * Please note that racing is handled very carefully here: 880 * mvmtxq->txq_id is updated during allocation, and mvmtxq->list is 881 * deleted afterwards. 882 * This means that if: 883 * mvmtxq->txq_id != INVALID_QUEUE && list_empty(&mvmtxq->list): 884 * queue is allocated and we can TX. 885 * mvmtxq->txq_id != INVALID_QUEUE && !list_empty(&mvmtxq->list): 886 * a race, should defer the frame. 887 * mvmtxq->txq_id == INVALID_QUEUE && list_empty(&mvmtxq->list): 888 * need to allocate the queue and defer the frame. 889 * mvmtxq->txq_id == INVALID_QUEUE && !list_empty(&mvmtxq->list): 890 * queue is already scheduled for allocation, no need to allocate, 891 * should defer the frame. 892 */ 893 894 /* If the queue is allocated TX and return. */ 895 if (!txq->sta || mvmtxq->txq_id != IWL_MVM_INVALID_QUEUE) { 896 /* 897 * Check that list is empty to avoid a race where txq_id is 898 * already updated, but the queue allocation work wasn't 899 * finished 900 */ 901 if (unlikely(txq->sta && !list_empty(&mvmtxq->list))) 902 return; 903 904 iwl_mvm_mac_itxq_xmit(hw, txq); 905 return; 906 } 907 908 /* The list is being deleted only after the queue is fully allocated. */ 909 if (!list_empty(&mvmtxq->list)) 910 return; 911 912 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 913 schedule_work(&mvm->add_stream_wk); 914 } 915 916 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 917 do { \ 918 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 919 break; \ 920 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 921 } while (0) 922 923 static void 924 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 925 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 926 enum ieee80211_ampdu_mlme_action action) 927 { 928 struct iwl_fw_dbg_trigger_tlv *trig; 929 struct iwl_fw_dbg_trigger_ba *ba_trig; 930 931 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 932 FW_DBG_TRIGGER_BA); 933 if (!trig) 934 return; 935 936 ba_trig = (void *)trig->data; 937 938 switch (action) { 939 case IEEE80211_AMPDU_TX_OPERATIONAL: { 940 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 941 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 942 943 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 944 "TX AGG START: MAC %pM tid %d ssn %d\n", 945 sta->addr, tid, tid_data->ssn); 946 break; 947 } 948 case IEEE80211_AMPDU_TX_STOP_CONT: 949 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 950 "TX AGG STOP: MAC %pM tid %d\n", 951 sta->addr, tid); 952 break; 953 case IEEE80211_AMPDU_RX_START: 954 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 955 "RX AGG START: MAC %pM tid %d ssn %d\n", 956 sta->addr, tid, rx_ba_ssn); 957 break; 958 case IEEE80211_AMPDU_RX_STOP: 959 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 960 "RX AGG STOP: MAC %pM tid %d\n", 961 sta->addr, tid); 962 break; 963 default: 964 break; 965 } 966 } 967 968 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 969 struct ieee80211_vif *vif, 970 struct ieee80211_ampdu_params *params) 971 { 972 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 973 int ret; 974 struct ieee80211_sta *sta = params->sta; 975 enum ieee80211_ampdu_mlme_action action = params->action; 976 u16 tid = params->tid; 977 u16 *ssn = ¶ms->ssn; 978 u16 buf_size = params->buf_size; 979 bool amsdu = params->amsdu; 980 u16 timeout = params->timeout; 981 982 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 983 sta->addr, tid, action); 984 985 if (!(mvm->nvm_data->sku_cap_11n_enable)) 986 return -EACCES; 987 988 mutex_lock(&mvm->mutex); 989 990 switch (action) { 991 case IEEE80211_AMPDU_RX_START: 992 if (iwl_mvm_vif_from_mac80211(vif)->ap_sta_id == 993 iwl_mvm_sta_from_mac80211(sta)->sta_id) { 994 struct iwl_mvm_vif *mvmvif; 995 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 996 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 997 998 mdata->opened_rx_ba_sessions = true; 999 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1000 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 1001 } 1002 if (!iwl_enable_rx_ampdu()) { 1003 ret = -EINVAL; 1004 break; 1005 } 1006 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 1007 timeout); 1008 break; 1009 case IEEE80211_AMPDU_RX_STOP: 1010 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 1011 timeout); 1012 break; 1013 case IEEE80211_AMPDU_TX_START: 1014 if (!iwl_enable_tx_ampdu()) { 1015 ret = -EINVAL; 1016 break; 1017 } 1018 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1019 break; 1020 case IEEE80211_AMPDU_TX_STOP_CONT: 1021 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1022 break; 1023 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1024 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1025 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1026 break; 1027 case IEEE80211_AMPDU_TX_OPERATIONAL: 1028 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1029 buf_size, amsdu); 1030 break; 1031 default: 1032 WARN_ON_ONCE(1); 1033 ret = -EINVAL; 1034 break; 1035 } 1036 1037 if (!ret) { 1038 u16 rx_ba_ssn = 0; 1039 1040 if (action == IEEE80211_AMPDU_RX_START) 1041 rx_ba_ssn = *ssn; 1042 1043 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1044 rx_ba_ssn, action); 1045 } 1046 mutex_unlock(&mvm->mutex); 1047 1048 return ret; 1049 } 1050 1051 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1052 struct ieee80211_vif *vif) 1053 { 1054 struct iwl_mvm *mvm = data; 1055 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1056 1057 mvmvif->uploaded = false; 1058 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1059 1060 spin_lock_bh(&mvm->time_event_lock); 1061 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1062 spin_unlock_bh(&mvm->time_event_lock); 1063 1064 mvmvif->phy_ctxt = NULL; 1065 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1066 memset(&mvmvif->probe_resp_data, 0, sizeof(mvmvif->probe_resp_data)); 1067 } 1068 1069 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1070 { 1071 iwl_mvm_stop_device(mvm); 1072 1073 mvm->cur_aid = 0; 1074 1075 mvm->scan_status = 0; 1076 mvm->ps_disabled = false; 1077 mvm->rfkill_safe_init_done = false; 1078 1079 /* just in case one was running */ 1080 iwl_mvm_cleanup_roc_te(mvm); 1081 ieee80211_remain_on_channel_expired(mvm->hw); 1082 1083 iwl_mvm_ftm_restart(mvm); 1084 1085 /* 1086 * cleanup all interfaces, even inactive ones, as some might have 1087 * gone down during the HW restart 1088 */ 1089 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1090 1091 mvm->p2p_device_vif = NULL; 1092 1093 iwl_mvm_reset_phy_ctxts(mvm); 1094 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1095 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1096 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1097 1098 ieee80211_wake_queues(mvm->hw); 1099 1100 mvm->vif_count = 0; 1101 mvm->rx_ba_sessions = 0; 1102 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1103 mvm->monitor_on = false; 1104 1105 /* keep statistics ticking */ 1106 iwl_mvm_accu_radio_stats(mvm); 1107 } 1108 1109 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1110 { 1111 int ret; 1112 1113 lockdep_assert_held(&mvm->mutex); 1114 1115 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1116 /* 1117 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1118 * so later code will - from now on - see that we're doing it. 1119 */ 1120 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1121 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1122 /* Clean up some internal and mac80211 state on restart */ 1123 iwl_mvm_restart_cleanup(mvm); 1124 } 1125 ret = iwl_mvm_up(mvm); 1126 1127 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1128 NULL); 1129 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1130 NULL); 1131 1132 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1133 /* Something went wrong - we need to finish some cleanup 1134 * that normally iwl_mvm_mac_restart_complete() below 1135 * would do. 1136 */ 1137 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1138 } 1139 1140 return ret; 1141 } 1142 1143 static int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1144 { 1145 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1146 int ret; 1147 1148 mutex_lock(&mvm->mutex); 1149 ret = __iwl_mvm_mac_start(mvm); 1150 mutex_unlock(&mvm->mutex); 1151 1152 return ret; 1153 } 1154 1155 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1156 { 1157 int ret; 1158 1159 mutex_lock(&mvm->mutex); 1160 1161 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1162 1163 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1164 if (ret) 1165 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1166 ret); 1167 1168 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1169 1170 /* 1171 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1172 * of packets the FW sent out, so we must reconnect. 1173 */ 1174 iwl_mvm_teardown_tdls_peers(mvm); 1175 1176 mutex_unlock(&mvm->mutex); 1177 } 1178 1179 static void 1180 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1181 enum ieee80211_reconfig_type reconfig_type) 1182 { 1183 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1184 1185 switch (reconfig_type) { 1186 case IEEE80211_RECONFIG_TYPE_RESTART: 1187 iwl_mvm_restart_complete(mvm); 1188 break; 1189 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1190 break; 1191 } 1192 } 1193 1194 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1195 { 1196 lockdep_assert_held(&mvm->mutex); 1197 1198 /* firmware counters are obviously reset now, but we shouldn't 1199 * partially track so also clear the fw_reset_accu counters. 1200 */ 1201 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1202 1203 /* async_handlers_wk is now blocked */ 1204 1205 /* 1206 * The work item could be running or queued if the 1207 * ROC time event stops just as we get here. 1208 */ 1209 flush_work(&mvm->roc_done_wk); 1210 1211 iwl_mvm_rm_aux_sta(mvm); 1212 1213 iwl_mvm_stop_device(mvm); 1214 1215 iwl_mvm_async_handlers_purge(mvm); 1216 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1217 1218 /* 1219 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1220 * hw (as restart_complete() won't be called in this case) and mac80211 1221 * won't execute the restart. 1222 * But make sure to cleanup interfaces that have gone down before/during 1223 * HW restart was requested. 1224 */ 1225 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1226 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1227 &mvm->status)) 1228 ieee80211_iterate_interfaces(mvm->hw, 0, 1229 iwl_mvm_cleanup_iterator, mvm); 1230 1231 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1232 * make sure there's nothing left there and warn if any is found. 1233 */ 1234 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1235 int i; 1236 1237 for (i = 0; i < mvm->max_scans; i++) { 1238 if (WARN_ONCE(mvm->scan_uid_status[i], 1239 "UMAC scan UID %d status was not cleaned\n", 1240 i)) 1241 mvm->scan_uid_status[i] = 0; 1242 } 1243 } 1244 } 1245 1246 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1247 { 1248 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1249 1250 flush_work(&mvm->async_handlers_wk); 1251 flush_work(&mvm->add_stream_wk); 1252 1253 /* 1254 * Lock and clear the firmware running bit here already, so that 1255 * new commands coming in elsewhere, e.g. from debugfs, will not 1256 * be able to proceed. This is important here because one of those 1257 * debugfs files causes the firmware dump to be triggered, and if we 1258 * don't stop debugfs accesses before canceling that it could be 1259 * retriggered after we flush it but before we've cleared the bit. 1260 */ 1261 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1262 1263 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1264 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1265 1266 mutex_lock(&mvm->mutex); 1267 __iwl_mvm_mac_stop(mvm); 1268 mutex_unlock(&mvm->mutex); 1269 1270 /* 1271 * The worker might have been waiting for the mutex, let it run and 1272 * discover that its list is now empty. 1273 */ 1274 cancel_work_sync(&mvm->async_handlers_wk); 1275 } 1276 1277 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1278 { 1279 u16 i; 1280 1281 lockdep_assert_held(&mvm->mutex); 1282 1283 for (i = 0; i < NUM_PHY_CTX; i++) 1284 if (!mvm->phy_ctxts[i].ref) 1285 return &mvm->phy_ctxts[i]; 1286 1287 IWL_ERR(mvm, "No available PHY context\n"); 1288 return NULL; 1289 } 1290 1291 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1292 s16 tx_power) 1293 { 1294 int len; 1295 union { 1296 struct iwl_dev_tx_power_cmd v5; 1297 struct iwl_dev_tx_power_cmd_v4 v4; 1298 } cmd = { 1299 .v5.v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1300 .v5.v3.mac_context_id = 1301 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1302 .v5.v3.pwr_restriction = cpu_to_le16(8 * tx_power), 1303 }; 1304 1305 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1306 cmd.v5.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1307 1308 if (fw_has_api(&mvm->fw->ucode_capa, 1309 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1310 len = sizeof(cmd.v5); 1311 else if (fw_has_capa(&mvm->fw->ucode_capa, 1312 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1313 len = sizeof(cmd.v4); 1314 else 1315 len = sizeof(cmd.v4.v3); 1316 1317 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); 1318 } 1319 1320 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1321 struct ieee80211_vif *vif) 1322 { 1323 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1324 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1325 int ret; 1326 1327 mutex_lock(&mvm->mutex); 1328 1329 if (mvmvif->csa_failed) { 1330 mvmvif->csa_failed = false; 1331 ret = -EIO; 1332 goto out_unlock; 1333 } 1334 1335 if (vif->type == NL80211_IFTYPE_STATION) { 1336 struct iwl_mvm_sta *mvmsta; 1337 1338 mvmvif->csa_bcn_pending = false; 1339 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 1340 mvmvif->ap_sta_id); 1341 1342 if (WARN_ON(!mvmsta)) { 1343 ret = -EIO; 1344 goto out_unlock; 1345 } 1346 1347 if (!fw_has_capa(&mvm->fw->ucode_capa, 1348 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1349 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1350 1351 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1352 1353 if (!fw_has_capa(&mvm->fw->ucode_capa, 1354 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1355 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1356 if (ret) 1357 goto out_unlock; 1358 1359 iwl_mvm_stop_session_protection(mvm, vif); 1360 } 1361 } 1362 1363 mvmvif->ps_disabled = false; 1364 1365 ret = iwl_mvm_power_update_ps(mvm); 1366 1367 out_unlock: 1368 mutex_unlock(&mvm->mutex); 1369 1370 return ret; 1371 } 1372 1373 static void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1374 struct ieee80211_vif *vif) 1375 { 1376 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1377 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1378 struct iwl_chan_switch_te_cmd cmd = { 1379 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1380 mvmvif->color)), 1381 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1382 }; 1383 1384 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1385 1386 mutex_lock(&mvm->mutex); 1387 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1388 WIDE_ID(MAC_CONF_GROUP, 1389 CHANNEL_SWITCH_TIME_EVENT_CMD), 1390 0, sizeof(cmd), &cmd)); 1391 mutex_unlock(&mvm->mutex); 1392 1393 WARN_ON(iwl_mvm_post_channel_switch(hw, vif)); 1394 } 1395 1396 static void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1397 { 1398 struct iwl_mvm *mvm; 1399 struct iwl_mvm_vif *mvmvif; 1400 struct ieee80211_vif *vif; 1401 1402 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1403 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1404 mvm = mvmvif->mvm; 1405 1406 iwl_mvm_abort_channel_switch(mvm->hw, vif); 1407 ieee80211_chswitch_done(vif, false); 1408 } 1409 1410 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1411 struct ieee80211_vif *vif) 1412 { 1413 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1414 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1415 int ret; 1416 1417 mvmvif->mvm = mvm; 1418 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1419 1420 /* 1421 * Not much to do here. The stack will not allow interface 1422 * types or combinations that we didn't advertise, so we 1423 * don't really have to check the types. 1424 */ 1425 1426 mutex_lock(&mvm->mutex); 1427 1428 /* make sure that beacon statistics don't go backwards with FW reset */ 1429 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1430 mvmvif->beacon_stats.accu_num_beacons += 1431 mvmvif->beacon_stats.num_beacons; 1432 1433 /* Allocate resources for the MAC context, and add it to the fw */ 1434 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1435 if (ret) 1436 goto out_unlock; 1437 1438 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1439 1440 /* Counting number of interfaces is needed for legacy PM */ 1441 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1442 mvm->vif_count++; 1443 1444 /* 1445 * The AP binding flow can be done only after the beacon 1446 * template is configured (which happens only in the mac80211 1447 * start_ap() flow), and adding the broadcast station can happen 1448 * only after the binding. 1449 * In addition, since modifying the MAC before adding a bcast 1450 * station is not allowed by the FW, delay the adding of MAC context to 1451 * the point where we can also add the bcast station. 1452 * In short: there's not much we can do at this point, other than 1453 * allocating resources :) 1454 */ 1455 if (vif->type == NL80211_IFTYPE_AP || 1456 vif->type == NL80211_IFTYPE_ADHOC) { 1457 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1458 if (ret) { 1459 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1460 goto out_release; 1461 } 1462 1463 /* 1464 * Only queue for this station is the mcast queue, 1465 * which shouldn't be in TFD mask anyway 1466 */ 1467 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta, 1468 0, vif->type, 1469 IWL_STA_MULTICAST); 1470 if (ret) 1471 goto out_release; 1472 1473 iwl_mvm_vif_dbgfs_register(mvm, vif); 1474 goto out_unlock; 1475 } 1476 1477 mvmvif->features |= hw->netdev_features; 1478 1479 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1480 if (ret) 1481 goto out_release; 1482 1483 ret = iwl_mvm_power_update_mac(mvm); 1484 if (ret) 1485 goto out_remove_mac; 1486 1487 /* beacon filtering */ 1488 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1489 if (ret) 1490 goto out_remove_mac; 1491 1492 if (!mvm->bf_allowed_vif && 1493 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1494 mvm->bf_allowed_vif = mvmvif; 1495 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1496 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1497 } 1498 1499 /* 1500 * P2P_DEVICE interface does not have a channel context assigned to it, 1501 * so a dedicated PHY context is allocated to it and the corresponding 1502 * MAC context is bound to it at this stage. 1503 */ 1504 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1505 1506 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1507 if (!mvmvif->phy_ctxt) { 1508 ret = -ENOSPC; 1509 goto out_free_bf; 1510 } 1511 1512 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 1513 ret = iwl_mvm_binding_add_vif(mvm, vif); 1514 if (ret) 1515 goto out_unref_phy; 1516 1517 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif); 1518 if (ret) 1519 goto out_unbind; 1520 1521 /* Save a pointer to p2p device vif, so it can later be used to 1522 * update the p2p device MAC when a GO is started/stopped */ 1523 mvm->p2p_device_vif = vif; 1524 } 1525 1526 iwl_mvm_tcm_add_vif(mvm, vif); 1527 INIT_DELAYED_WORK(&mvmvif->csa_work, 1528 iwl_mvm_channel_switch_disconnect_wk); 1529 1530 if (vif->type == NL80211_IFTYPE_MONITOR) 1531 mvm->monitor_on = true; 1532 1533 iwl_mvm_vif_dbgfs_register(mvm, vif); 1534 goto out_unlock; 1535 1536 out_unbind: 1537 iwl_mvm_binding_remove_vif(mvm, vif); 1538 out_unref_phy: 1539 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1540 out_free_bf: 1541 if (mvm->bf_allowed_vif == mvmvif) { 1542 mvm->bf_allowed_vif = NULL; 1543 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1544 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1545 } 1546 out_remove_mac: 1547 mvmvif->phy_ctxt = NULL; 1548 iwl_mvm_mac_ctxt_remove(mvm, vif); 1549 out_release: 1550 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1551 mvm->vif_count--; 1552 out_unlock: 1553 mutex_unlock(&mvm->mutex); 1554 1555 return ret; 1556 } 1557 1558 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1559 struct ieee80211_vif *vif) 1560 { 1561 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1562 /* 1563 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1564 * We assume here that all the packets sent to the OFFCHANNEL 1565 * queue are sent in ROC session. 1566 */ 1567 flush_work(&mvm->roc_done_wk); 1568 } 1569 } 1570 1571 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1572 struct ieee80211_vif *vif) 1573 { 1574 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1575 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1576 struct iwl_probe_resp_data *probe_data; 1577 1578 iwl_mvm_prepare_mac_removal(mvm, vif); 1579 1580 if (!(vif->type == NL80211_IFTYPE_AP || 1581 vif->type == NL80211_IFTYPE_ADHOC)) 1582 iwl_mvm_tcm_rm_vif(mvm, vif); 1583 1584 mutex_lock(&mvm->mutex); 1585 1586 probe_data = rcu_dereference_protected(mvmvif->probe_resp_data, 1587 lockdep_is_held(&mvm->mutex)); 1588 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1589 if (probe_data) 1590 kfree_rcu(probe_data, rcu_head); 1591 1592 if (mvm->bf_allowed_vif == mvmvif) { 1593 mvm->bf_allowed_vif = NULL; 1594 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1595 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1596 } 1597 1598 if (vif->bss_conf.ftm_responder) 1599 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1600 1601 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1602 1603 /* 1604 * For AP/GO interface, the tear down of the resources allocated to the 1605 * interface is be handled as part of the stop_ap flow. 1606 */ 1607 if (vif->type == NL80211_IFTYPE_AP || 1608 vif->type == NL80211_IFTYPE_ADHOC) { 1609 #ifdef CONFIG_NL80211_TESTMODE 1610 if (vif == mvm->noa_vif) { 1611 mvm->noa_vif = NULL; 1612 mvm->noa_duration = 0; 1613 } 1614 #endif 1615 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta); 1616 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1617 goto out_release; 1618 } 1619 1620 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1621 mvm->p2p_device_vif = NULL; 1622 iwl_mvm_rm_p2p_bcast_sta(mvm, vif); 1623 iwl_mvm_binding_remove_vif(mvm, vif); 1624 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1625 mvmvif->phy_ctxt = NULL; 1626 } 1627 1628 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) 1629 mvm->vif_count--; 1630 1631 iwl_mvm_power_update_mac(mvm); 1632 iwl_mvm_mac_ctxt_remove(mvm, vif); 1633 1634 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1635 1636 if (vif->type == NL80211_IFTYPE_MONITOR) 1637 mvm->monitor_on = false; 1638 1639 out_release: 1640 mutex_unlock(&mvm->mutex); 1641 } 1642 1643 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) 1644 { 1645 return 0; 1646 } 1647 1648 struct iwl_mvm_mc_iter_data { 1649 struct iwl_mvm *mvm; 1650 int port_id; 1651 }; 1652 1653 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1654 struct ieee80211_vif *vif) 1655 { 1656 struct iwl_mvm_mc_iter_data *data = _data; 1657 struct iwl_mvm *mvm = data->mvm; 1658 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1659 struct iwl_host_cmd hcmd = { 1660 .id = MCAST_FILTER_CMD, 1661 .flags = CMD_ASYNC, 1662 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1663 }; 1664 int ret, len; 1665 1666 /* if we don't have free ports, mcast frames will be dropped */ 1667 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1668 return; 1669 1670 if (vif->type != NL80211_IFTYPE_STATION || 1671 !vif->bss_conf.assoc) 1672 return; 1673 1674 cmd->port_id = data->port_id++; 1675 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1676 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1677 1678 hcmd.len[0] = len; 1679 hcmd.data[0] = cmd; 1680 1681 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1682 if (ret) 1683 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1684 } 1685 1686 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1687 { 1688 struct iwl_mvm_mc_iter_data iter_data = { 1689 .mvm = mvm, 1690 }; 1691 1692 lockdep_assert_held(&mvm->mutex); 1693 1694 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1695 return; 1696 1697 ieee80211_iterate_active_interfaces_atomic( 1698 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1699 iwl_mvm_mc_iface_iterator, &iter_data); 1700 } 1701 1702 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1703 struct netdev_hw_addr_list *mc_list) 1704 { 1705 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1706 struct iwl_mcast_filter_cmd *cmd; 1707 struct netdev_hw_addr *addr; 1708 int addr_count; 1709 bool pass_all; 1710 int len; 1711 1712 addr_count = netdev_hw_addr_list_count(mc_list); 1713 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1714 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1715 if (pass_all) 1716 addr_count = 0; 1717 1718 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1719 cmd = kzalloc(len, GFP_ATOMIC); 1720 if (!cmd) 1721 return 0; 1722 1723 if (pass_all) { 1724 cmd->pass_all = 1; 1725 return (u64)(unsigned long)cmd; 1726 } 1727 1728 netdev_hw_addr_list_for_each(addr, mc_list) { 1729 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1730 cmd->count, addr->addr); 1731 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1732 addr->addr, ETH_ALEN); 1733 cmd->count++; 1734 } 1735 1736 return (u64)(unsigned long)cmd; 1737 } 1738 1739 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1740 unsigned int changed_flags, 1741 unsigned int *total_flags, 1742 u64 multicast) 1743 { 1744 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1745 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1746 1747 mutex_lock(&mvm->mutex); 1748 1749 /* replace previous configuration */ 1750 kfree(mvm->mcast_filter_cmd); 1751 mvm->mcast_filter_cmd = cmd; 1752 1753 if (!cmd) 1754 goto out; 1755 1756 if (changed_flags & FIF_ALLMULTI) 1757 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1758 1759 if (cmd->pass_all) 1760 cmd->count = 0; 1761 1762 iwl_mvm_recalc_multicast(mvm); 1763 out: 1764 mutex_unlock(&mvm->mutex); 1765 *total_flags = 0; 1766 } 1767 1768 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1769 struct ieee80211_vif *vif, 1770 unsigned int filter_flags, 1771 unsigned int changed_flags) 1772 { 1773 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1774 1775 /* We support only filter for probe requests */ 1776 if (!(changed_flags & FIF_PROBE_REQ)) 1777 return; 1778 1779 /* Supported only for p2p client interfaces */ 1780 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || 1781 !vif->p2p) 1782 return; 1783 1784 mutex_lock(&mvm->mutex); 1785 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1786 mutex_unlock(&mvm->mutex); 1787 } 1788 1789 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1790 struct iwl_bcast_iter_data { 1791 struct iwl_mvm *mvm; 1792 struct iwl_bcast_filter_cmd *cmd; 1793 u8 current_filter; 1794 }; 1795 1796 static void 1797 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, 1798 const struct iwl_fw_bcast_filter *in_filter, 1799 struct iwl_fw_bcast_filter *out_filter) 1800 { 1801 struct iwl_fw_bcast_filter_attr *attr; 1802 int i; 1803 1804 memcpy(out_filter, in_filter, sizeof(*out_filter)); 1805 1806 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { 1807 attr = &out_filter->attrs[i]; 1808 1809 if (!attr->mask) 1810 break; 1811 1812 switch (attr->reserved1) { 1813 case cpu_to_le16(BC_FILTER_MAGIC_IP): 1814 if (vif->bss_conf.arp_addr_cnt != 1) { 1815 attr->mask = 0; 1816 continue; 1817 } 1818 1819 attr->val = vif->bss_conf.arp_addr_list[0]; 1820 break; 1821 case cpu_to_le16(BC_FILTER_MAGIC_MAC): 1822 attr->val = *(__be32 *)&vif->addr[2]; 1823 break; 1824 default: 1825 break; 1826 } 1827 attr->reserved1 = 0; 1828 out_filter->num_attrs++; 1829 } 1830 } 1831 1832 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, 1833 struct ieee80211_vif *vif) 1834 { 1835 struct iwl_bcast_iter_data *data = _data; 1836 struct iwl_mvm *mvm = data->mvm; 1837 struct iwl_bcast_filter_cmd *cmd = data->cmd; 1838 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1839 struct iwl_fw_bcast_mac *bcast_mac; 1840 int i; 1841 1842 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) 1843 return; 1844 1845 bcast_mac = &cmd->macs[mvmvif->id]; 1846 1847 /* 1848 * enable filtering only for associated stations, but not for P2P 1849 * Clients 1850 */ 1851 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || 1852 !vif->bss_conf.assoc) 1853 return; 1854 1855 bcast_mac->default_discard = 1; 1856 1857 /* copy all configured filters */ 1858 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { 1859 /* 1860 * Make sure we don't exceed our filters limit. 1861 * if there is still a valid filter to be configured, 1862 * be on the safe side and just allow bcast for this mac. 1863 */ 1864 if (WARN_ON_ONCE(data->current_filter >= 1865 ARRAY_SIZE(cmd->filters))) { 1866 bcast_mac->default_discard = 0; 1867 bcast_mac->attached_filters = 0; 1868 break; 1869 } 1870 1871 iwl_mvm_set_bcast_filter(vif, 1872 &mvm->bcast_filters[i], 1873 &cmd->filters[data->current_filter]); 1874 1875 /* skip current filter if it contains no attributes */ 1876 if (!cmd->filters[data->current_filter].num_attrs) 1877 continue; 1878 1879 /* attach the filter to current mac */ 1880 bcast_mac->attached_filters |= 1881 cpu_to_le16(BIT(data->current_filter)); 1882 1883 data->current_filter++; 1884 } 1885 } 1886 1887 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, 1888 struct iwl_bcast_filter_cmd *cmd) 1889 { 1890 struct iwl_bcast_iter_data iter_data = { 1891 .mvm = mvm, 1892 .cmd = cmd, 1893 }; 1894 1895 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) 1896 return false; 1897 1898 memset(cmd, 0, sizeof(*cmd)); 1899 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); 1900 cmd->max_macs = ARRAY_SIZE(cmd->macs); 1901 1902 #ifdef CONFIG_IWLWIFI_DEBUGFS 1903 /* use debugfs filters/macs if override is configured */ 1904 if (mvm->dbgfs_bcast_filtering.override) { 1905 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, 1906 sizeof(cmd->filters)); 1907 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, 1908 sizeof(cmd->macs)); 1909 return true; 1910 } 1911 #endif 1912 1913 /* if no filters are configured, do nothing */ 1914 if (!mvm->bcast_filters) 1915 return false; 1916 1917 /* configure and attach these filters for each associated sta vif */ 1918 ieee80211_iterate_active_interfaces( 1919 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1920 iwl_mvm_bcast_filter_iterator, &iter_data); 1921 1922 return true; 1923 } 1924 1925 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1926 { 1927 struct iwl_bcast_filter_cmd cmd; 1928 1929 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) 1930 return 0; 1931 1932 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1933 return 0; 1934 1935 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1936 sizeof(cmd), &cmd); 1937 } 1938 #else 1939 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1940 { 1941 return 0; 1942 } 1943 #endif 1944 1945 static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, 1946 struct ieee80211_vif *vif) 1947 { 1948 struct iwl_mu_group_mgmt_cmd cmd = {}; 1949 1950 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1951 WLAN_MEMBERSHIP_LEN); 1952 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1953 WLAN_USER_POSITION_LEN); 1954 1955 return iwl_mvm_send_cmd_pdu(mvm, 1956 WIDE_ID(DATA_PATH_GROUP, 1957 UPDATE_MU_GROUPS_CMD), 1958 0, sizeof(cmd), &cmd); 1959 } 1960 1961 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1962 struct ieee80211_vif *vif) 1963 { 1964 if (vif->mu_mimo_owner) { 1965 struct iwl_mu_group_mgmt_notif *notif = _data; 1966 1967 /* 1968 * MU-MIMO Group Id action frame is little endian. We treat 1969 * the data received from firmware as if it came from the 1970 * action frame, so no conversion is needed. 1971 */ 1972 ieee80211_update_mu_groups(vif, 1973 (u8 *)¬if->membership_status, 1974 (u8 *)¬if->user_position); 1975 } 1976 } 1977 1978 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1979 struct iwl_rx_cmd_buffer *rxb) 1980 { 1981 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1982 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1983 1984 ieee80211_iterate_active_interfaces_atomic( 1985 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1986 iwl_mvm_mu_mimo_iface_iterator, notif); 1987 } 1988 1989 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1990 { 1991 u8 byte_num = ppe_pos_bit / 8; 1992 u8 bit_num = ppe_pos_bit % 8; 1993 u8 residue_bits; 1994 u8 res; 1995 1996 if (bit_num <= 5) 1997 return (ppe[byte_num] >> bit_num) & 1998 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 1999 2000 /* 2001 * If bit_num > 5, we have to combine bits with next byte. 2002 * Calculate how many bits we need to take from current byte (called 2003 * here "residue_bits"), and add them to bits from next byte. 2004 */ 2005 2006 residue_bits = 8 - bit_num; 2007 2008 res = (ppe[byte_num + 1] & 2009 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2010 residue_bits; 2011 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2012 2013 return res; 2014 } 2015 2016 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2017 struct ieee80211_vif *vif, u8 sta_id) 2018 { 2019 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2020 struct iwl_he_sta_context_cmd sta_ctxt_cmd = { 2021 .sta_id = sta_id, 2022 .tid_limit = IWL_MAX_TID_COUNT, 2023 .bss_color = vif->bss_conf.he_bss_color.color, 2024 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2025 .frame_time_rts_th = 2026 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2027 }; 2028 int size = fw_has_api(&mvm->fw->ucode_capa, 2029 IWL_UCODE_TLV_API_MBSSID_HE) ? 2030 sizeof(sta_ctxt_cmd) : 2031 sizeof(struct iwl_he_sta_context_cmd_v1); 2032 struct ieee80211_sta *sta; 2033 u32 flags; 2034 int i; 2035 2036 rcu_read_lock(); 2037 2038 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2039 if (IS_ERR_OR_NULL(sta)) { 2040 rcu_read_unlock(); 2041 WARN(1, "Can't find STA to configure HE\n"); 2042 return; 2043 } 2044 2045 if (!sta->he_cap.has_he) { 2046 rcu_read_unlock(); 2047 return; 2048 } 2049 2050 flags = 0; 2051 2052 /* Block 26-tone RU OFDMA transmissions */ 2053 if (mvmvif->he_ru_2mhz_block) 2054 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2055 2056 /* HTC flags */ 2057 if (sta->he_cap.he_cap_elem.mac_cap_info[0] & 2058 IEEE80211_HE_MAC_CAP0_HTC_HE) 2059 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2060 if ((sta->he_cap.he_cap_elem.mac_cap_info[1] & 2061 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2062 (sta->he_cap.he_cap_elem.mac_cap_info[2] & 2063 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2064 u8 link_adap = 2065 ((sta->he_cap.he_cap_elem.mac_cap_info[2] & 2066 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2067 (sta->he_cap.he_cap_elem.mac_cap_info[1] & 2068 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2069 2070 if (link_adap == 2) 2071 sta_ctxt_cmd.htc_flags |= 2072 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2073 else if (link_adap == 3) 2074 sta_ctxt_cmd.htc_flags |= 2075 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2076 } 2077 if (sta->he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2078 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2079 if (sta->he_cap.he_cap_elem.mac_cap_info[3] & 2080 IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2081 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2082 if (sta->he_cap.he_cap_elem.mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2083 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2084 2085 /* 2086 * Initialize the PPE thresholds to "None" (7), as described in Table 2087 * 9-262ac of 80211.ax/D3.0. 2088 */ 2089 memset(&sta_ctxt_cmd.pkt_ext, 7, sizeof(sta_ctxt_cmd.pkt_ext)); 2090 2091 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2092 if (sta->he_cap.he_cap_elem.phy_cap_info[6] & 2093 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2094 u8 nss = (sta->he_cap.ppe_thres[0] & 2095 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2096 u8 ru_index_bitmap = 2097 (sta->he_cap.ppe_thres[0] & 2098 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK) >> 2099 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS; 2100 u8 *ppe = &sta->he_cap.ppe_thres[0]; 2101 u8 ppe_pos_bit = 7; /* Starting after PPE header */ 2102 2103 /* 2104 * FW currently supports only nss == MAX_HE_SUPP_NSS 2105 * 2106 * If nss > MAX: we can ignore values we don't support 2107 * If nss < MAX: we can set zeros in other streams 2108 */ 2109 if (nss > MAX_HE_SUPP_NSS) { 2110 IWL_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2111 MAX_HE_SUPP_NSS); 2112 nss = MAX_HE_SUPP_NSS; 2113 } 2114 2115 for (i = 0; i < nss; i++) { 2116 u8 ru_index_tmp = ru_index_bitmap << 1; 2117 u8 bw; 2118 2119 for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX; bw++) { 2120 ru_index_tmp >>= 1; 2121 if (!(ru_index_tmp & 1)) 2122 continue; 2123 2124 sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][1] = 2125 iwl_mvm_he_get_ppe_val(ppe, 2126 ppe_pos_bit); 2127 ppe_pos_bit += 2128 IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2129 sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][0] = 2130 iwl_mvm_he_get_ppe_val(ppe, 2131 ppe_pos_bit); 2132 ppe_pos_bit += 2133 IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2134 } 2135 } 2136 2137 flags |= STA_CTXT_HE_PACKET_EXT; 2138 } else if ((sta->he_cap.he_cap_elem.phy_cap_info[9] & 2139 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) != 2140 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_RESERVED) { 2141 int low_th = -1; 2142 int high_th = -1; 2143 2144 /* Take the PPE thresholds from the nominal padding info */ 2145 switch (sta->he_cap.he_cap_elem.phy_cap_info[9] & 2146 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) { 2147 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US: 2148 low_th = IWL_HE_PKT_EXT_NONE; 2149 high_th = IWL_HE_PKT_EXT_NONE; 2150 break; 2151 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US: 2152 low_th = IWL_HE_PKT_EXT_BPSK; 2153 high_th = IWL_HE_PKT_EXT_NONE; 2154 break; 2155 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US: 2156 low_th = IWL_HE_PKT_EXT_NONE; 2157 high_th = IWL_HE_PKT_EXT_BPSK; 2158 break; 2159 } 2160 2161 /* Set the PPE thresholds accordingly */ 2162 if (low_th >= 0 && high_th >= 0) { 2163 struct iwl_he_pkt_ext *pkt_ext = 2164 (struct iwl_he_pkt_ext *)&sta_ctxt_cmd.pkt_ext; 2165 2166 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2167 u8 bw; 2168 2169 for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX; 2170 bw++) { 2171 pkt_ext->pkt_ext_qam_th[i][bw][0] = 2172 low_th; 2173 pkt_ext->pkt_ext_qam_th[i][bw][1] = 2174 high_th; 2175 } 2176 } 2177 2178 flags |= STA_CTXT_HE_PACKET_EXT; 2179 } 2180 } 2181 2182 if (sta->he_cap.he_cap_elem.mac_cap_info[2] & 2183 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2184 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2185 2186 if (sta->he_cap.he_cap_elem.mac_cap_info[2] & 2187 IEEE80211_HE_MAC_CAP2_ACK_EN) 2188 flags |= STA_CTXT_HE_ACK_ENABLED; 2189 2190 rcu_read_unlock(); 2191 2192 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2193 flags |= STA_CTXT_HE_MU_EDCA_CW; 2194 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2195 struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2196 &mvmvif->queue_params[i].mu_edca_param_rec; 2197 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2198 2199 if (!mvmvif->queue_params[i].mu_edca) { 2200 flags &= ~STA_CTXT_HE_MU_EDCA_CW; 2201 break; 2202 } 2203 2204 sta_ctxt_cmd.trig_based_txf[ac].cwmin = 2205 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2206 sta_ctxt_cmd.trig_based_txf[ac].cwmax = 2207 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2208 sta_ctxt_cmd.trig_based_txf[ac].aifsn = 2209 cpu_to_le16(mu_edca->aifsn); 2210 sta_ctxt_cmd.trig_based_txf[ac].mu_time = 2211 cpu_to_le16(mu_edca->mu_edca_timer); 2212 } 2213 2214 2215 if (vif->bss_conf.uora_exists) { 2216 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2217 2218 sta_ctxt_cmd.rand_alloc_ecwmin = 2219 vif->bss_conf.uora_ocw_range & 0x7; 2220 sta_ctxt_cmd.rand_alloc_ecwmax = 2221 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2222 } 2223 2224 if (vif->bss_conf.nontransmitted) { 2225 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2226 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2227 vif->bss_conf.transmitter_bssid); 2228 sta_ctxt_cmd.max_bssid_indicator = 2229 vif->bss_conf.bssid_indicator; 2230 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2231 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2232 sta_ctxt_cmd.profile_periodicity = 2233 vif->bss_conf.profile_periodicity; 2234 } 2235 2236 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2237 2238 if (iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(STA_HE_CTXT_CMD, 2239 DATA_PATH_GROUP, 0), 2240 0, size, &sta_ctxt_cmd)) 2241 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2242 } 2243 2244 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2245 struct ieee80211_vif *vif, 2246 struct ieee80211_bss_conf *bss_conf, 2247 u32 changes) 2248 { 2249 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2250 int ret; 2251 2252 /* 2253 * Re-calculate the tsf id, as the master-slave relations depend on the 2254 * beacon interval, which was not known when the station interface was 2255 * added. 2256 */ 2257 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) { 2258 if (vif->bss_conf.he_support && 2259 !iwlwifi_mod_params.disable_11ax) 2260 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2261 2262 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2263 } 2264 2265 /* Update MU EDCA params */ 2266 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2267 bss_conf->assoc && vif->bss_conf.he_support && 2268 !iwlwifi_mod_params.disable_11ax) 2269 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2270 2271 /* 2272 * If we're not associated yet, take the (new) BSSID before associating 2273 * so the firmware knows. If we're already associated, then use the old 2274 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2275 * branch for disassociation below. 2276 */ 2277 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2278 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2279 2280 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); 2281 if (ret) 2282 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2283 2284 /* after sending it once, adopt mac80211 data */ 2285 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2286 mvmvif->associated = bss_conf->assoc; 2287 2288 if (changes & BSS_CHANGED_ASSOC) { 2289 if (bss_conf->assoc) { 2290 /* clear statistics to get clean beacon counter */ 2291 iwl_mvm_request_statistics(mvm, true); 2292 memset(&mvmvif->beacon_stats, 0, 2293 sizeof(mvmvif->beacon_stats)); 2294 2295 /* add quota for this interface */ 2296 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2297 if (ret) { 2298 IWL_ERR(mvm, "failed to update quotas\n"); 2299 return; 2300 } 2301 2302 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2303 &mvm->status) && 2304 !fw_has_capa(&mvm->fw->ucode_capa, 2305 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2306 /* 2307 * If we're restarting then the firmware will 2308 * obviously have lost synchronisation with 2309 * the AP. It will attempt to synchronise by 2310 * itself, but we can make it more reliable by 2311 * scheduling a session protection time event. 2312 * 2313 * The firmware needs to receive a beacon to 2314 * catch up with synchronisation, use 110% of 2315 * the beacon interval. 2316 * 2317 * Set a large maximum delay to allow for more 2318 * than a single interface. 2319 * 2320 * For new firmware versions, rely on the 2321 * firmware. This is relevant for DCM scenarios 2322 * only anyway. 2323 */ 2324 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2325 iwl_mvm_protect_session(mvm, vif, dur, dur, 2326 5 * dur, false); 2327 } 2328 2329 iwl_mvm_sf_update(mvm, vif, false); 2330 iwl_mvm_power_vif_assoc(mvm, vif); 2331 if (vif->p2p) { 2332 iwl_mvm_update_smps(mvm, vif, 2333 IWL_MVM_SMPS_REQ_PROT, 2334 IEEE80211_SMPS_DYNAMIC); 2335 } 2336 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 2337 /* 2338 * If update fails - SF might be running in associated 2339 * mode while disassociated - which is forbidden. 2340 */ 2341 ret = iwl_mvm_sf_update(mvm, vif, false); 2342 WARN_ONCE(ret && 2343 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2344 &mvm->status), 2345 "Failed to update SF upon disassociation\n"); 2346 2347 /* 2348 * If we get an assert during the connection (after the 2349 * station has been added, but before the vif is set 2350 * to associated), mac80211 will re-add the station and 2351 * then configure the vif. Since the vif is not 2352 * associated, we would remove the station here and 2353 * this would fail the recovery. 2354 */ 2355 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2356 &mvm->status)) { 2357 /* 2358 * Remove AP station now that 2359 * the MAC is unassoc 2360 */ 2361 ret = iwl_mvm_rm_sta_id(mvm, vif, 2362 mvmvif->ap_sta_id); 2363 if (ret) 2364 IWL_ERR(mvm, 2365 "failed to remove AP station\n"); 2366 2367 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 2368 } 2369 2370 /* remove quota for this interface */ 2371 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2372 if (ret) 2373 IWL_ERR(mvm, "failed to update quotas\n"); 2374 2375 /* this will take the cleared BSSID from bss_conf */ 2376 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2377 if (ret) 2378 IWL_ERR(mvm, 2379 "failed to update MAC %pM (clear after unassoc)\n", 2380 vif->addr); 2381 } 2382 2383 /* 2384 * The firmware tracks the MU-MIMO group on its own. 2385 * However, on HW restart we should restore this data. 2386 */ 2387 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2388 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) { 2389 ret = iwl_mvm_update_mu_groups(mvm, vif); 2390 if (ret) 2391 IWL_ERR(mvm, 2392 "failed to update VHT MU_MIMO groups\n"); 2393 } 2394 2395 iwl_mvm_recalc_multicast(mvm); 2396 iwl_mvm_configure_bcast_filter(mvm); 2397 2398 /* reset rssi values */ 2399 mvmvif->bf_data.ave_beacon_signal = 0; 2400 2401 iwl_mvm_bt_coex_vif_change(mvm); 2402 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2403 IEEE80211_SMPS_AUTOMATIC); 2404 if (fw_has_capa(&mvm->fw->ucode_capa, 2405 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2406 iwl_mvm_config_scan(mvm); 2407 } 2408 2409 if (changes & BSS_CHANGED_BEACON_INFO) { 2410 /* 2411 * We received a beacon from the associated AP so 2412 * remove the session protection. 2413 * A firmware with the new API will remove it automatically. 2414 */ 2415 if (!fw_has_capa(&mvm->fw->ucode_capa, 2416 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2417 iwl_mvm_stop_session_protection(mvm, vif); 2418 2419 iwl_mvm_sf_update(mvm, vif, false); 2420 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2421 } 2422 2423 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2424 /* 2425 * Send power command on every beacon change, 2426 * because we may have not enabled beacon abort yet. 2427 */ 2428 BSS_CHANGED_BEACON_INFO)) { 2429 ret = iwl_mvm_power_update_mac(mvm); 2430 if (ret) 2431 IWL_ERR(mvm, "failed to update power mode\n"); 2432 } 2433 2434 if (changes & BSS_CHANGED_TXPOWER) { 2435 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 2436 bss_conf->txpower); 2437 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2438 } 2439 2440 if (changes & BSS_CHANGED_CQM) { 2441 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2442 /* reset cqm events tracking */ 2443 mvmvif->bf_data.last_cqm_event = 0; 2444 if (mvmvif->bf_data.bf_enabled) { 2445 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2446 if (ret) 2447 IWL_ERR(mvm, 2448 "failed to update CQM thresholds\n"); 2449 } 2450 } 2451 2452 if (changes & BSS_CHANGED_ARP_FILTER) { 2453 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); 2454 iwl_mvm_configure_bcast_filter(mvm); 2455 } 2456 } 2457 2458 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2459 struct ieee80211_vif *vif) 2460 { 2461 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2462 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2463 int ret, i; 2464 2465 mutex_lock(&mvm->mutex); 2466 2467 /* Send the beacon template */ 2468 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); 2469 if (ret) 2470 goto out_unlock; 2471 2472 /* 2473 * Re-calculate the tsf id, as the master-slave relations depend on the 2474 * beacon interval, which was not known when the AP interface was added. 2475 */ 2476 if (vif->type == NL80211_IFTYPE_AP) 2477 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2478 2479 mvmvif->ap_assoc_sta_count = 0; 2480 2481 /* Add the mac context */ 2482 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2483 if (ret) 2484 goto out_unlock; 2485 2486 /* Perform the binding */ 2487 ret = iwl_mvm_binding_add_vif(mvm, vif); 2488 if (ret) 2489 goto out_remove; 2490 2491 /* 2492 * This is not very nice, but the simplest: 2493 * For older FWs adding the mcast sta before the bcast station may 2494 * cause assert 0x2b00. 2495 * This is fixed in later FW so make the order of removal depend on 2496 * the TLV 2497 */ 2498 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2499 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2500 if (ret) 2501 goto out_unbind; 2502 /* 2503 * Send the bcast station. At this stage the TBTT and DTIM time 2504 * events are added and applied to the scheduler 2505 */ 2506 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2507 if (ret) { 2508 iwl_mvm_rm_mcast_sta(mvm, vif); 2509 goto out_unbind; 2510 } 2511 } else { 2512 /* 2513 * Send the bcast station. At this stage the TBTT and DTIM time 2514 * events are added and applied to the scheduler 2515 */ 2516 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2517 if (ret) 2518 goto out_unbind; 2519 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2520 if (ret) { 2521 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2522 goto out_unbind; 2523 } 2524 } 2525 2526 /* must be set before quota calculations */ 2527 mvmvif->ap_ibss_active = true; 2528 2529 /* send all the early keys to the device now */ 2530 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2531 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2532 2533 if (!key) 2534 continue; 2535 2536 mvmvif->ap_early_keys[i] = NULL; 2537 2538 ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2539 if (ret) 2540 goto out_quota_failed; 2541 } 2542 2543 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2544 iwl_mvm_vif_set_low_latency(mvmvif, true, 2545 LOW_LATENCY_VIF_TYPE); 2546 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2547 } 2548 2549 /* power updated needs to be done before quotas */ 2550 iwl_mvm_power_update_mac(mvm); 2551 2552 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2553 if (ret) 2554 goto out_quota_failed; 2555 2556 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2557 if (vif->p2p && mvm->p2p_device_vif) 2558 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2559 2560 iwl_mvm_bt_coex_vif_change(mvm); 2561 2562 /* we don't support TDLS during DCM */ 2563 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2564 iwl_mvm_teardown_tdls_peers(mvm); 2565 2566 iwl_mvm_ftm_restart_responder(mvm, vif); 2567 2568 goto out_unlock; 2569 2570 out_quota_failed: 2571 iwl_mvm_power_update_mac(mvm); 2572 mvmvif->ap_ibss_active = false; 2573 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2574 iwl_mvm_rm_mcast_sta(mvm, vif); 2575 out_unbind: 2576 iwl_mvm_binding_remove_vif(mvm, vif); 2577 out_remove: 2578 iwl_mvm_mac_ctxt_remove(mvm, vif); 2579 out_unlock: 2580 mutex_unlock(&mvm->mutex); 2581 return ret; 2582 } 2583 2584 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2585 struct ieee80211_vif *vif) 2586 { 2587 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2588 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2589 2590 iwl_mvm_prepare_mac_removal(mvm, vif); 2591 2592 mutex_lock(&mvm->mutex); 2593 2594 /* Handle AP stop while in CSA */ 2595 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2596 iwl_mvm_remove_time_event(mvm, mvmvif, 2597 &mvmvif->time_event_data); 2598 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2599 mvmvif->csa_countdown = false; 2600 } 2601 2602 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2603 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2604 mvm->csa_tx_block_bcn_timeout = 0; 2605 } 2606 2607 mvmvif->ap_ibss_active = false; 2608 mvm->ap_last_beacon_gp2 = 0; 2609 2610 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2611 iwl_mvm_vif_set_low_latency(mvmvif, false, 2612 LOW_LATENCY_VIF_TYPE); 2613 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2614 } 2615 2616 iwl_mvm_bt_coex_vif_change(mvm); 2617 2618 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2619 if (vif->p2p && mvm->p2p_device_vif) 2620 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2621 2622 iwl_mvm_update_quotas(mvm, false, NULL); 2623 2624 /* 2625 * This is not very nice, but the simplest: 2626 * For older FWs removing the mcast sta before the bcast station may 2627 * cause assert 0x2b00. 2628 * This is fixed in later FW (which will stop beaconing when removing 2629 * bcast station). 2630 * So make the order of removal depend on the TLV 2631 */ 2632 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2633 iwl_mvm_rm_mcast_sta(mvm, vif); 2634 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2635 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2636 iwl_mvm_rm_mcast_sta(mvm, vif); 2637 iwl_mvm_binding_remove_vif(mvm, vif); 2638 2639 iwl_mvm_power_update_mac(mvm); 2640 2641 iwl_mvm_mac_ctxt_remove(mvm, vif); 2642 2643 mutex_unlock(&mvm->mutex); 2644 } 2645 2646 static void 2647 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 2648 struct ieee80211_vif *vif, 2649 struct ieee80211_bss_conf *bss_conf, 2650 u32 changes) 2651 { 2652 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2653 2654 /* Changes will be applied when the AP/IBSS is started */ 2655 if (!mvmvif->ap_ibss_active) 2656 return; 2657 2658 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 2659 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 2660 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 2661 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2662 2663 /* Need to send a new beacon template to the FW */ 2664 if (changes & BSS_CHANGED_BEACON && 2665 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) 2666 IWL_WARN(mvm, "Failed updating beacon data\n"); 2667 2668 if (changes & BSS_CHANGED_TXPOWER) { 2669 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 2670 bss_conf->txpower); 2671 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2672 } 2673 2674 if (changes & BSS_CHANGED_FTM_RESPONDER) { 2675 int ret = iwl_mvm_ftm_start_responder(mvm, vif); 2676 2677 if (ret) 2678 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 2679 ret); 2680 } 2681 2682 } 2683 2684 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 2685 struct ieee80211_vif *vif, 2686 struct ieee80211_bss_conf *bss_conf, 2687 u32 changes) 2688 { 2689 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2690 2691 mutex_lock(&mvm->mutex); 2692 2693 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) 2694 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 2695 2696 switch (vif->type) { 2697 case NL80211_IFTYPE_STATION: 2698 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 2699 break; 2700 case NL80211_IFTYPE_AP: 2701 case NL80211_IFTYPE_ADHOC: 2702 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 2703 break; 2704 case NL80211_IFTYPE_MONITOR: 2705 if (changes & BSS_CHANGED_MU_GROUPS) 2706 iwl_mvm_update_mu_groups(mvm, vif); 2707 break; 2708 default: 2709 /* shouldn't happen */ 2710 WARN_ON_ONCE(1); 2711 } 2712 2713 mutex_unlock(&mvm->mutex); 2714 } 2715 2716 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, 2717 struct ieee80211_vif *vif, 2718 struct ieee80211_scan_request *hw_req) 2719 { 2720 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2721 int ret; 2722 2723 if (hw_req->req.n_channels == 0 || 2724 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 2725 return -EINVAL; 2726 2727 mutex_lock(&mvm->mutex); 2728 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 2729 mutex_unlock(&mvm->mutex); 2730 2731 return ret; 2732 } 2733 2734 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 2735 struct ieee80211_vif *vif) 2736 { 2737 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2738 2739 mutex_lock(&mvm->mutex); 2740 2741 /* Due to a race condition, it's possible that mac80211 asks 2742 * us to stop a hw_scan when it's already stopped. This can 2743 * happen, for instance, if we stopped the scan ourselves, 2744 * called ieee80211_scan_completed() and the userspace called 2745 * cancel scan scan before ieee80211_scan_work() could run. 2746 * To handle that, simply return if the scan is not running. 2747 */ 2748 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 2749 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 2750 2751 mutex_unlock(&mvm->mutex); 2752 } 2753 2754 static void 2755 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 2756 struct ieee80211_sta *sta, u16 tids, 2757 int num_frames, 2758 enum ieee80211_frame_release_type reason, 2759 bool more_data) 2760 { 2761 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2762 2763 /* Called when we need to transmit (a) frame(s) from mac80211 */ 2764 2765 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2766 tids, more_data, false); 2767 } 2768 2769 static void 2770 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 2771 struct ieee80211_sta *sta, u16 tids, 2772 int num_frames, 2773 enum ieee80211_frame_release_type reason, 2774 bool more_data) 2775 { 2776 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2777 2778 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 2779 2780 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2781 tids, more_data, true); 2782 } 2783 2784 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2785 enum sta_notify_cmd cmd, 2786 struct ieee80211_sta *sta) 2787 { 2788 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2789 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2790 unsigned long txqs = 0, tids = 0; 2791 int tid; 2792 2793 /* 2794 * If we have TVQM then we get too high queue numbers - luckily 2795 * we really shouldn't get here with that because such hardware 2796 * should have firmware supporting buffer station offload. 2797 */ 2798 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 2799 return; 2800 2801 spin_lock_bh(&mvmsta->lock); 2802 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 2803 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2804 2805 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 2806 continue; 2807 2808 __set_bit(tid_data->txq_id, &txqs); 2809 2810 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 2811 continue; 2812 2813 __set_bit(tid, &tids); 2814 } 2815 2816 switch (cmd) { 2817 case STA_NOTIFY_SLEEP: 2818 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 2819 ieee80211_sta_set_buffered(sta, tid, true); 2820 2821 if (txqs) 2822 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 2823 /* 2824 * The fw updates the STA to be asleep. Tx packets on the Tx 2825 * queues to this station will not be transmitted. The fw will 2826 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 2827 */ 2828 break; 2829 case STA_NOTIFY_AWAKE: 2830 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA)) 2831 break; 2832 2833 if (txqs) 2834 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 2835 iwl_mvm_sta_modify_ps_wake(mvm, sta); 2836 break; 2837 default: 2838 break; 2839 } 2840 spin_unlock_bh(&mvmsta->lock); 2841 } 2842 2843 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2844 struct ieee80211_vif *vif, 2845 enum sta_notify_cmd cmd, 2846 struct ieee80211_sta *sta) 2847 { 2848 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 2849 } 2850 2851 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 2852 { 2853 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2854 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 2855 struct ieee80211_sta *sta; 2856 struct iwl_mvm_sta *mvmsta; 2857 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 2858 2859 if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))) 2860 return; 2861 2862 rcu_read_lock(); 2863 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 2864 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 2865 rcu_read_unlock(); 2866 return; 2867 } 2868 2869 mvmsta = iwl_mvm_sta_from_mac80211(sta); 2870 2871 if (!mvmsta->vif || 2872 mvmsta->vif->type != NL80211_IFTYPE_AP) { 2873 rcu_read_unlock(); 2874 return; 2875 } 2876 2877 if (mvmsta->sleeping != sleeping) { 2878 mvmsta->sleeping = sleeping; 2879 __iwl_mvm_mac_sta_notify(mvm->hw, 2880 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 2881 sta); 2882 ieee80211_sta_ps_transition(sta, sleeping); 2883 } 2884 2885 if (sleeping) { 2886 switch (notif->type) { 2887 case IWL_MVM_PM_EVENT_AWAKE: 2888 case IWL_MVM_PM_EVENT_ASLEEP: 2889 break; 2890 case IWL_MVM_PM_EVENT_UAPSD: 2891 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 2892 break; 2893 case IWL_MVM_PM_EVENT_PS_POLL: 2894 ieee80211_sta_pspoll(sta); 2895 break; 2896 default: 2897 break; 2898 } 2899 } 2900 2901 rcu_read_unlock(); 2902 } 2903 2904 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 2905 struct ieee80211_vif *vif, 2906 struct ieee80211_sta *sta) 2907 { 2908 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2909 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2910 2911 /* 2912 * This is called before mac80211 does RCU synchronisation, 2913 * so here we already invalidate our internal RCU-protected 2914 * station pointer. The rest of the code will thus no longer 2915 * be able to find the station this way, and we don't rely 2916 * on further RCU synchronisation after the sta_state() 2917 * callback deleted the station. 2918 */ 2919 mutex_lock(&mvm->mutex); 2920 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) 2921 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], 2922 ERR_PTR(-ENOENT)); 2923 2924 mutex_unlock(&mvm->mutex); 2925 } 2926 2927 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2928 const u8 *bssid) 2929 { 2930 int i; 2931 2932 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 2933 struct iwl_mvm_tcm_mac *mdata; 2934 2935 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 2936 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 2937 mdata->opened_rx_ba_sessions = false; 2938 } 2939 2940 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 2941 return; 2942 2943 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 2944 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2945 return; 2946 } 2947 2948 if (!vif->p2p && 2949 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 2950 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2951 return; 2952 } 2953 2954 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 2955 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 2956 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2957 return; 2958 } 2959 } 2960 2961 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 2962 } 2963 2964 static void 2965 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 2966 struct ieee80211_vif *vif, u8 *peer_addr, 2967 enum nl80211_tdls_operation action) 2968 { 2969 struct iwl_fw_dbg_trigger_tlv *trig; 2970 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 2971 2972 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 2973 FW_DBG_TRIGGER_TDLS); 2974 if (!trig) 2975 return; 2976 2977 tdls_trig = (void *)trig->data; 2978 2979 if (!(tdls_trig->action_bitmap & BIT(action))) 2980 return; 2981 2982 if (tdls_trig->peer_mode && 2983 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 2984 return; 2985 2986 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 2987 "TDLS event occurred, peer %pM, action %d", 2988 peer_addr, action); 2989 } 2990 2991 struct iwl_mvm_he_obss_narrow_bw_ru_data { 2992 bool tolerated; 2993 }; 2994 2995 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 2996 struct cfg80211_bss *bss, 2997 void *_data) 2998 { 2999 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3000 const struct element *elem; 3001 3002 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, bss->ies->data, 3003 bss->ies->len); 3004 3005 if (!elem || elem->datalen < 10 || 3006 !(elem->data[10] & 3007 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3008 data->tolerated = false; 3009 } 3010 } 3011 3012 static void iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3013 struct ieee80211_vif *vif) 3014 { 3015 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3016 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3017 .tolerated = true, 3018 }; 3019 3020 if (!(vif->bss_conf.chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3021 mvmvif->he_ru_2mhz_block = false; 3022 return; 3023 } 3024 3025 cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chandef, 3026 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3027 &iter_data); 3028 3029 /* 3030 * If there is at least one AP on radar channel that cannot 3031 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3032 */ 3033 mvmvif->he_ru_2mhz_block = !iter_data.tolerated; 3034 } 3035 3036 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3037 struct ieee80211_vif *vif, 3038 struct ieee80211_sta *sta, 3039 enum ieee80211_sta_state old_state, 3040 enum ieee80211_sta_state new_state) 3041 { 3042 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3043 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3044 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3045 int ret; 3046 3047 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3048 sta->addr, old_state, new_state); 3049 3050 /* this would be a mac80211 bug ... but don't crash */ 3051 if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) 3052 return -EINVAL; 3053 3054 /* 3055 * If we are in a STA removal flow and in DQA mode: 3056 * 3057 * This is after the sync_rcu part, so the queues have already been 3058 * flushed. No more TXs on their way in mac80211's path, and no more in 3059 * the queues. 3060 * Also, we won't be getting any new TX frames for this station. 3061 * What we might have are deferred TX frames that need to be taken care 3062 * of. 3063 * 3064 * Drop any still-queued deferred-frame before removing the STA, and 3065 * make sure the worker is no longer handling frames for this STA. 3066 */ 3067 if (old_state == IEEE80211_STA_NONE && 3068 new_state == IEEE80211_STA_NOTEXIST) { 3069 flush_work(&mvm->add_stream_wk); 3070 3071 /* 3072 * No need to make sure deferred TX indication is off since the 3073 * worker will already remove it if it was on 3074 */ 3075 } 3076 3077 mutex_lock(&mvm->mutex); 3078 /* track whether or not the station is associated */ 3079 mvm_sta->sta_state = new_state; 3080 3081 if (old_state == IEEE80211_STA_NOTEXIST && 3082 new_state == IEEE80211_STA_NONE) { 3083 /* 3084 * Firmware bug - it'll crash if the beacon interval is less 3085 * than 16. We can't avoid connecting at all, so refuse the 3086 * station state change, this will cause mac80211 to abandon 3087 * attempts to connect to this AP, and eventually wpa_s will 3088 * blacklist the AP... 3089 */ 3090 if (vif->type == NL80211_IFTYPE_STATION && 3091 vif->bss_conf.beacon_int < 16) { 3092 IWL_ERR(mvm, 3093 "AP %pM beacon interval is %d, refusing due to firmware bug!\n", 3094 sta->addr, vif->bss_conf.beacon_int); 3095 ret = -EINVAL; 3096 goto out_unlock; 3097 } 3098 3099 if (sta->tdls && 3100 (vif->p2p || 3101 iwl_mvm_tdls_sta_count(mvm, NULL) == 3102 IWL_MVM_TDLS_STA_COUNT || 3103 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3104 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3105 ret = -EBUSY; 3106 goto out_unlock; 3107 } 3108 3109 ret = iwl_mvm_add_sta(mvm, vif, sta); 3110 if (sta->tdls && ret == 0) { 3111 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3112 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3113 NL80211_TDLS_SETUP); 3114 } 3115 3116 sta->max_rc_amsdu_len = 1; 3117 } else if (old_state == IEEE80211_STA_NONE && 3118 new_state == IEEE80211_STA_AUTH) { 3119 /* 3120 * EBS may be disabled due to previous failures reported by FW. 3121 * Reset EBS status here assuming environment has been changed. 3122 */ 3123 mvm->last_ebs_successful = true; 3124 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3125 ret = 0; 3126 } else if (old_state == IEEE80211_STA_AUTH && 3127 new_state == IEEE80211_STA_ASSOC) { 3128 if (vif->type == NL80211_IFTYPE_AP) { 3129 vif->bss_conf.he_support = sta->he_cap.has_he; 3130 mvmvif->ap_assoc_sta_count++; 3131 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3132 if (vif->bss_conf.he_support && 3133 !iwlwifi_mod_params.disable_11ax) 3134 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->sta_id); 3135 } else if (vif->type == NL80211_IFTYPE_STATION) { 3136 vif->bss_conf.he_support = sta->he_cap.has_he; 3137 3138 mvmvif->he_ru_2mhz_block = false; 3139 if (sta->he_cap.has_he) 3140 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif); 3141 3142 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3143 } 3144 3145 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3146 false); 3147 ret = iwl_mvm_update_sta(mvm, vif, sta); 3148 } else if (old_state == IEEE80211_STA_ASSOC && 3149 new_state == IEEE80211_STA_AUTHORIZED) { 3150 ret = 0; 3151 3152 /* we don't support TDLS during DCM */ 3153 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3154 iwl_mvm_teardown_tdls_peers(mvm); 3155 3156 if (sta->tdls) 3157 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3158 NL80211_TDLS_ENABLE_LINK); 3159 3160 /* enable beacon filtering */ 3161 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3162 3163 /* 3164 * Now that the station is authorized, i.e., keys were already 3165 * installed, need to indicate to the FW that 3166 * multicast data frames can be forwarded to the driver 3167 */ 3168 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3169 3170 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3171 true); 3172 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3173 new_state == IEEE80211_STA_ASSOC) { 3174 /* Multicast data frames are no longer allowed */ 3175 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3176 3177 /* disable beacon filtering */ 3178 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3179 WARN_ON(ret && 3180 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3181 &mvm->status)); 3182 ret = 0; 3183 } else if (old_state == IEEE80211_STA_ASSOC && 3184 new_state == IEEE80211_STA_AUTH) { 3185 if (vif->type == NL80211_IFTYPE_AP) { 3186 mvmvif->ap_assoc_sta_count--; 3187 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3188 } 3189 ret = 0; 3190 } else if (old_state == IEEE80211_STA_AUTH && 3191 new_state == IEEE80211_STA_NONE) { 3192 ret = 0; 3193 } else if (old_state == IEEE80211_STA_NONE && 3194 new_state == IEEE80211_STA_NOTEXIST) { 3195 ret = iwl_mvm_rm_sta(mvm, vif, sta); 3196 if (sta->tdls) { 3197 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3198 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3199 NL80211_TDLS_DISABLE_LINK); 3200 } 3201 3202 if (unlikely(ret && 3203 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3204 &mvm->status))) 3205 ret = 0; 3206 } else { 3207 ret = -EIO; 3208 } 3209 out_unlock: 3210 mutex_unlock(&mvm->mutex); 3211 3212 if (sta->tdls && ret == 0) { 3213 if (old_state == IEEE80211_STA_NOTEXIST && 3214 new_state == IEEE80211_STA_NONE) 3215 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3216 else if (old_state == IEEE80211_STA_NONE && 3217 new_state == IEEE80211_STA_NOTEXIST) 3218 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3219 } 3220 3221 return ret; 3222 } 3223 3224 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3225 { 3226 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3227 3228 mvm->rts_threshold = value; 3229 3230 return 0; 3231 } 3232 3233 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, 3234 struct ieee80211_vif *vif, 3235 struct ieee80211_sta *sta, u32 changed) 3236 { 3237 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3238 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3239 3240 if (changed & (IEEE80211_RC_BW_CHANGED | 3241 IEEE80211_RC_SUPP_RATES_CHANGED | 3242 IEEE80211_RC_NSS_CHANGED)) 3243 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3244 true); 3245 3246 if (vif->type == NL80211_IFTYPE_STATION && 3247 changed & IEEE80211_RC_NSS_CHANGED) 3248 iwl_mvm_sf_update(mvm, vif, false); 3249 } 3250 3251 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 3252 struct ieee80211_vif *vif, u16 ac, 3253 const struct ieee80211_tx_queue_params *params) 3254 { 3255 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3256 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3257 3258 mvmvif->queue_params[ac] = *params; 3259 3260 /* 3261 * No need to update right away, we'll get BSS_CHANGED_QOS 3262 * The exception is P2P_DEVICE interface which needs immediate update. 3263 */ 3264 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 3265 int ret; 3266 3267 mutex_lock(&mvm->mutex); 3268 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3269 mutex_unlock(&mvm->mutex); 3270 return ret; 3271 } 3272 return 0; 3273 } 3274 3275 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 3276 struct ieee80211_vif *vif, 3277 u16 req_duration) 3278 { 3279 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3280 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 3281 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 3282 3283 if (req_duration > duration) 3284 duration = req_duration; 3285 3286 mutex_lock(&mvm->mutex); 3287 /* Try really hard to protect the session and hear a beacon 3288 * The new session protection command allows us to protect the 3289 * session for a much longer time since the firmware will internally 3290 * create two events: a 300TU one with a very high priority that 3291 * won't be fragmented which should be enough for 99% of the cases, 3292 * and another one (which we configure here to be 900TU long) which 3293 * will have a slightly lower priority, but more importantly, can be 3294 * fragmented so that it'll allow other activities to run. 3295 */ 3296 if (fw_has_capa(&mvm->fw->ucode_capa, 3297 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 3298 iwl_mvm_schedule_session_protection(mvm, vif, 900, 3299 min_duration, false); 3300 else 3301 iwl_mvm_protect_session(mvm, vif, duration, 3302 min_duration, 500, false); 3303 mutex_unlock(&mvm->mutex); 3304 } 3305 3306 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 3307 struct ieee80211_vif *vif, 3308 struct cfg80211_sched_scan_request *req, 3309 struct ieee80211_scan_ies *ies) 3310 { 3311 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3312 3313 int ret; 3314 3315 mutex_lock(&mvm->mutex); 3316 3317 if (!vif->bss_conf.idle) { 3318 ret = -EBUSY; 3319 goto out; 3320 } 3321 3322 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 3323 3324 out: 3325 mutex_unlock(&mvm->mutex); 3326 return ret; 3327 } 3328 3329 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 3330 struct ieee80211_vif *vif) 3331 { 3332 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3333 int ret; 3334 3335 mutex_lock(&mvm->mutex); 3336 3337 /* Due to a race condition, it's possible that mac80211 asks 3338 * us to stop a sched_scan when it's already stopped. This 3339 * can happen, for instance, if we stopped the scan ourselves, 3340 * called ieee80211_sched_scan_stopped() and the userspace called 3341 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 3342 * could run. To handle this, simply return if the scan is 3343 * not running. 3344 */ 3345 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 3346 mutex_unlock(&mvm->mutex); 3347 return 0; 3348 } 3349 3350 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 3351 mutex_unlock(&mvm->mutex); 3352 iwl_mvm_wait_for_async_handlers(mvm); 3353 3354 return ret; 3355 } 3356 3357 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3358 enum set_key_cmd cmd, 3359 struct ieee80211_vif *vif, 3360 struct ieee80211_sta *sta, 3361 struct ieee80211_key_conf *key) 3362 { 3363 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3364 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3365 struct iwl_mvm_sta *mvmsta; 3366 struct iwl_mvm_key_pn *ptk_pn; 3367 int keyidx = key->keyidx; 3368 int ret, i; 3369 u8 key_offset; 3370 3371 switch (key->cipher) { 3372 case WLAN_CIPHER_SUITE_TKIP: 3373 if (!mvm->trans->trans_cfg->gen2) { 3374 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 3375 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3376 } else if (vif->type == NL80211_IFTYPE_STATION) { 3377 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 3378 } else { 3379 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 3380 return -EOPNOTSUPP; 3381 } 3382 break; 3383 case WLAN_CIPHER_SUITE_CCMP: 3384 case WLAN_CIPHER_SUITE_GCMP: 3385 case WLAN_CIPHER_SUITE_GCMP_256: 3386 if (!iwl_mvm_has_new_tx_api(mvm)) 3387 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3388 break; 3389 case WLAN_CIPHER_SUITE_AES_CMAC: 3390 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3391 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3392 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 3393 break; 3394 case WLAN_CIPHER_SUITE_WEP40: 3395 case WLAN_CIPHER_SUITE_WEP104: 3396 if (vif->type == NL80211_IFTYPE_STATION) 3397 break; 3398 if (iwl_mvm_has_new_tx_api(mvm)) 3399 return -EOPNOTSUPP; 3400 /* support HW crypto on TX */ 3401 return 0; 3402 default: 3403 /* currently FW supports only one optional cipher scheme */ 3404 if (hw->n_cipher_schemes && 3405 hw->cipher_schemes->cipher == key->cipher) 3406 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3407 else 3408 return -EOPNOTSUPP; 3409 } 3410 3411 switch (cmd) { 3412 case SET_KEY: 3413 if ((vif->type == NL80211_IFTYPE_ADHOC || 3414 vif->type == NL80211_IFTYPE_AP) && !sta) { 3415 /* 3416 * GTK on AP interface is a TX-only key, return 0; 3417 * on IBSS they're per-station and because we're lazy 3418 * we don't support them for RX, so do the same. 3419 * CMAC/GMAC in AP/IBSS modes must be done in software. 3420 */ 3421 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3422 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3423 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 3424 ret = -EOPNOTSUPP; 3425 else 3426 ret = 0; 3427 3428 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 3429 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 3430 !iwl_mvm_has_new_tx_api(mvm)) { 3431 key->hw_key_idx = STA_KEY_IDX_INVALID; 3432 break; 3433 } 3434 3435 if (!mvmvif->ap_ibss_active) { 3436 for (i = 0; 3437 i < ARRAY_SIZE(mvmvif->ap_early_keys); 3438 i++) { 3439 if (!mvmvif->ap_early_keys[i]) { 3440 mvmvif->ap_early_keys[i] = key; 3441 break; 3442 } 3443 } 3444 3445 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 3446 ret = -ENOSPC; 3447 3448 break; 3449 } 3450 } 3451 3452 /* During FW restart, in order to restore the state as it was, 3453 * don't try to reprogram keys we previously failed for. 3454 */ 3455 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3456 key->hw_key_idx == STA_KEY_IDX_INVALID) { 3457 IWL_DEBUG_MAC80211(mvm, 3458 "skip invalid idx key programming during restart\n"); 3459 ret = 0; 3460 break; 3461 } 3462 3463 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3464 sta && iwl_mvm_has_new_rx_api(mvm) && 3465 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3466 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3467 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3468 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3469 struct ieee80211_key_seq seq; 3470 int tid, q; 3471 3472 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3473 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 3474 ptk_pn = kzalloc(struct_size(ptk_pn, q, 3475 mvm->trans->num_rx_queues), 3476 GFP_KERNEL); 3477 if (!ptk_pn) { 3478 ret = -ENOMEM; 3479 break; 3480 } 3481 3482 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 3483 ieee80211_get_key_rx_seq(key, tid, &seq); 3484 for (q = 0; q < mvm->trans->num_rx_queues; q++) 3485 memcpy(ptk_pn->q[q].pn[tid], 3486 seq.ccmp.pn, 3487 IEEE80211_CCMP_PN_LEN); 3488 } 3489 3490 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 3491 } 3492 3493 /* in HW restart reuse the index, otherwise request a new one */ 3494 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3495 key_offset = key->hw_key_idx; 3496 else 3497 key_offset = STA_KEY_IDX_INVALID; 3498 3499 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); 3500 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 3501 if (ret) { 3502 IWL_WARN(mvm, "set key failed\n"); 3503 key->hw_key_idx = STA_KEY_IDX_INVALID; 3504 /* 3505 * can't add key for RX, but we don't need it 3506 * in the device for TX so still return 0, 3507 * unless we have new TX API where we cannot 3508 * put key material into the TX_CMD 3509 */ 3510 if (iwl_mvm_has_new_tx_api(mvm)) 3511 ret = -EOPNOTSUPP; 3512 else 3513 ret = 0; 3514 } 3515 3516 break; 3517 case DISABLE_KEY: 3518 ret = -ENOENT; 3519 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 3520 if (mvmvif->ap_early_keys[i] == key) { 3521 mvmvif->ap_early_keys[i] = NULL; 3522 ret = 0; 3523 } 3524 } 3525 3526 /* found in pending list - don't do anything else */ 3527 if (ret == 0) 3528 break; 3529 3530 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 3531 ret = 0; 3532 break; 3533 } 3534 3535 if (sta && iwl_mvm_has_new_rx_api(mvm) && 3536 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3537 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3538 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3539 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3540 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3541 ptk_pn = rcu_dereference_protected( 3542 mvmsta->ptk_pn[keyidx], 3543 lockdep_is_held(&mvm->mutex)); 3544 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 3545 if (ptk_pn) 3546 kfree_rcu(ptk_pn, rcu_head); 3547 } 3548 3549 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 3550 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 3551 break; 3552 default: 3553 ret = -EINVAL; 3554 } 3555 3556 return ret; 3557 } 3558 3559 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3560 enum set_key_cmd cmd, 3561 struct ieee80211_vif *vif, 3562 struct ieee80211_sta *sta, 3563 struct ieee80211_key_conf *key) 3564 { 3565 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3566 int ret; 3567 3568 mutex_lock(&mvm->mutex); 3569 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 3570 mutex_unlock(&mvm->mutex); 3571 3572 return ret; 3573 } 3574 3575 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 3576 struct ieee80211_vif *vif, 3577 struct ieee80211_key_conf *keyconf, 3578 struct ieee80211_sta *sta, 3579 u32 iv32, u16 *phase1key) 3580 { 3581 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3582 3583 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 3584 return; 3585 3586 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 3587 } 3588 3589 3590 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 3591 struct iwl_rx_packet *pkt, void *data) 3592 { 3593 struct iwl_mvm *mvm = 3594 container_of(notif_wait, struct iwl_mvm, notif_wait); 3595 struct iwl_hs20_roc_res *resp; 3596 int resp_len = iwl_rx_packet_payload_len(pkt); 3597 struct iwl_mvm_time_event_data *te_data = data; 3598 3599 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 3600 return true; 3601 3602 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 3603 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 3604 return true; 3605 } 3606 3607 resp = (void *)pkt->data; 3608 3609 IWL_DEBUG_TE(mvm, 3610 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 3611 resp->status, resp->event_unique_id); 3612 3613 te_data->uid = le32_to_cpu(resp->event_unique_id); 3614 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 3615 te_data->uid); 3616 3617 spin_lock_bh(&mvm->time_event_lock); 3618 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 3619 spin_unlock_bh(&mvm->time_event_lock); 3620 3621 return true; 3622 } 3623 3624 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 3625 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 3626 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 3627 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 3628 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 3629 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 3630 struct ieee80211_channel *channel, 3631 struct ieee80211_vif *vif, 3632 int duration) 3633 { 3634 int res; 3635 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3636 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 3637 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 3638 struct iwl_notification_wait wait_time_event; 3639 u32 dtim_interval = vif->bss_conf.dtim_period * 3640 vif->bss_conf.beacon_int; 3641 u32 req_dur, delay; 3642 struct iwl_hs20_roc_req aux_roc_req = { 3643 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 3644 .id_and_color = 3645 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 3646 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 3647 }; 3648 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 3649 &aux_roc_req.channel_info); 3650 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 3651 3652 /* Set the channel info data */ 3653 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 3654 iwl_mvm_phy_band_from_nl80211(channel->band), 3655 PHY_VHT_CHANNEL_MODE20, 3656 0); 3657 3658 /* Set the time and duration */ 3659 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 3660 3661 delay = AUX_ROC_MIN_DELAY; 3662 req_dur = MSEC_TO_TU(duration); 3663 3664 /* 3665 * If we are associated we want the delay time to be at least one 3666 * dtim interval so that the FW can wait until after the DTIM and 3667 * then start the time event, this will potentially allow us to 3668 * remain off-channel for the max duration. 3669 * Since we want to use almost a whole dtim interval we would also 3670 * like the delay to be for 2-3 dtim intervals, in case there are 3671 * other time events with higher priority. 3672 */ 3673 if (vif->bss_conf.assoc) { 3674 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 3675 /* We cannot remain off-channel longer than the DTIM interval */ 3676 if (dtim_interval <= req_dur) { 3677 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 3678 if (req_dur <= AUX_ROC_MIN_DURATION) 3679 req_dur = dtim_interval - 3680 AUX_ROC_MIN_SAFETY_BUFFER; 3681 } 3682 } 3683 3684 tail->duration = cpu_to_le32(req_dur); 3685 tail->apply_time_max_delay = cpu_to_le32(delay); 3686 3687 IWL_DEBUG_TE(mvm, 3688 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 3689 channel->hw_value, req_dur, duration, delay, 3690 dtim_interval); 3691 /* Set the node address */ 3692 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 3693 3694 lockdep_assert_held(&mvm->mutex); 3695 3696 spin_lock_bh(&mvm->time_event_lock); 3697 3698 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 3699 spin_unlock_bh(&mvm->time_event_lock); 3700 return -EIO; 3701 } 3702 3703 te_data->vif = vif; 3704 te_data->duration = duration; 3705 te_data->id = HOT_SPOT_CMD; 3706 3707 spin_unlock_bh(&mvm->time_event_lock); 3708 3709 /* 3710 * Use a notification wait, which really just processes the 3711 * command response and doesn't wait for anything, in order 3712 * to be able to process the response and get the UID inside 3713 * the RX path. Using CMD_WANT_SKB doesn't work because it 3714 * stores the buffer and then wakes up this thread, by which 3715 * time another notification (that the time event started) 3716 * might already be processed unsuccessfully. 3717 */ 3718 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 3719 time_event_response, 3720 ARRAY_SIZE(time_event_response), 3721 iwl_mvm_rx_aux_roc, te_data); 3722 3723 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 3724 &aux_roc_req); 3725 3726 if (res) { 3727 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 3728 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 3729 goto out_clear_te; 3730 } 3731 3732 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 3733 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 3734 /* should never fail */ 3735 WARN_ON_ONCE(res); 3736 3737 if (res) { 3738 out_clear_te: 3739 spin_lock_bh(&mvm->time_event_lock); 3740 iwl_mvm_te_clear_data(mvm, te_data); 3741 spin_unlock_bh(&mvm->time_event_lock); 3742 } 3743 3744 return res; 3745 } 3746 3747 static int iwl_mvm_roc(struct ieee80211_hw *hw, 3748 struct ieee80211_vif *vif, 3749 struct ieee80211_channel *channel, 3750 int duration, 3751 enum ieee80211_roc_type type) 3752 { 3753 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3754 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3755 struct cfg80211_chan_def chandef; 3756 struct iwl_mvm_phy_ctxt *phy_ctxt; 3757 int ret, i; 3758 3759 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 3760 duration, type); 3761 3762 /* 3763 * Flush the done work, just in case it's still pending, so that 3764 * the work it does can complete and we can accept new frames. 3765 */ 3766 flush_work(&mvm->roc_done_wk); 3767 3768 mutex_lock(&mvm->mutex); 3769 3770 switch (vif->type) { 3771 case NL80211_IFTYPE_STATION: 3772 if (fw_has_capa(&mvm->fw->ucode_capa, 3773 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 3774 /* Use aux roc framework (HS20) */ 3775 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 3776 vif, duration); 3777 goto out_unlock; 3778 } 3779 IWL_ERR(mvm, "hotspot not supported\n"); 3780 ret = -EINVAL; 3781 goto out_unlock; 3782 case NL80211_IFTYPE_P2P_DEVICE: 3783 /* handle below */ 3784 break; 3785 default: 3786 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 3787 ret = -EINVAL; 3788 goto out_unlock; 3789 } 3790 3791 for (i = 0; i < NUM_PHY_CTX; i++) { 3792 phy_ctxt = &mvm->phy_ctxts[i]; 3793 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) 3794 continue; 3795 3796 if (phy_ctxt->ref && channel == phy_ctxt->channel) { 3797 /* 3798 * Unbind the P2P_DEVICE from the current PHY context, 3799 * and if the PHY context is not used remove it. 3800 */ 3801 ret = iwl_mvm_binding_remove_vif(mvm, vif); 3802 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 3803 goto out_unlock; 3804 3805 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 3806 3807 /* Bind the P2P_DEVICE to the current PHY Context */ 3808 mvmvif->phy_ctxt = phy_ctxt; 3809 3810 ret = iwl_mvm_binding_add_vif(mvm, vif); 3811 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 3812 goto out_unlock; 3813 3814 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 3815 goto schedule_time_event; 3816 } 3817 } 3818 3819 /* Need to update the PHY context only if the ROC channel changed */ 3820 if (channel == mvmvif->phy_ctxt->channel) 3821 goto schedule_time_event; 3822 3823 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 3824 3825 /* 3826 * Change the PHY context configuration as it is currently referenced 3827 * only by the P2P Device MAC 3828 */ 3829 if (mvmvif->phy_ctxt->ref == 1) { 3830 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, 3831 &chandef, 1, 1); 3832 if (ret) 3833 goto out_unlock; 3834 } else { 3835 /* 3836 * The PHY context is shared with other MACs. Need to remove the 3837 * P2P Device from the binding, allocate an new PHY context and 3838 * create a new binding 3839 */ 3840 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 3841 if (!phy_ctxt) { 3842 ret = -ENOSPC; 3843 goto out_unlock; 3844 } 3845 3846 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 3847 1, 1); 3848 if (ret) { 3849 IWL_ERR(mvm, "Failed to change PHY context\n"); 3850 goto out_unlock; 3851 } 3852 3853 /* Unbind the P2P_DEVICE from the current PHY context */ 3854 ret = iwl_mvm_binding_remove_vif(mvm, vif); 3855 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 3856 goto out_unlock; 3857 3858 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 3859 3860 /* Bind the P2P_DEVICE to the new allocated PHY context */ 3861 mvmvif->phy_ctxt = phy_ctxt; 3862 3863 ret = iwl_mvm_binding_add_vif(mvm, vif); 3864 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 3865 goto out_unlock; 3866 3867 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 3868 } 3869 3870 schedule_time_event: 3871 /* Schedule the time events */ 3872 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 3873 3874 out_unlock: 3875 mutex_unlock(&mvm->mutex); 3876 IWL_DEBUG_MAC80211(mvm, "leave\n"); 3877 return ret; 3878 } 3879 3880 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 3881 struct ieee80211_vif *vif) 3882 { 3883 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3884 3885 IWL_DEBUG_MAC80211(mvm, "enter\n"); 3886 3887 mutex_lock(&mvm->mutex); 3888 iwl_mvm_stop_roc(mvm, vif); 3889 mutex_unlock(&mvm->mutex); 3890 3891 IWL_DEBUG_MAC80211(mvm, "leave\n"); 3892 return 0; 3893 } 3894 3895 struct iwl_mvm_ftm_responder_iter_data { 3896 bool responder; 3897 struct ieee80211_chanctx_conf *ctx; 3898 }; 3899 3900 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 3901 struct ieee80211_vif *vif) 3902 { 3903 struct iwl_mvm_ftm_responder_iter_data *data = _data; 3904 3905 if (rcu_access_pointer(vif->chanctx_conf) == data->ctx && 3906 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 3907 data->responder = true; 3908 } 3909 3910 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 3911 struct ieee80211_chanctx_conf *ctx) 3912 { 3913 struct iwl_mvm_ftm_responder_iter_data data = { 3914 .responder = false, 3915 .ctx = ctx, 3916 }; 3917 3918 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 3919 IEEE80211_IFACE_ITER_NORMAL, 3920 iwl_mvm_ftm_responder_chanctx_iter, 3921 &data); 3922 return data.responder; 3923 } 3924 3925 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 3926 struct ieee80211_chanctx_conf *ctx) 3927 { 3928 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3929 struct iwl_mvm_phy_ctxt *phy_ctxt; 3930 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 3931 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 3932 int ret; 3933 3934 lockdep_assert_held(&mvm->mutex); 3935 3936 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 3937 3938 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 3939 if (!phy_ctxt) { 3940 ret = -ENOSPC; 3941 goto out; 3942 } 3943 3944 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 3945 ctx->rx_chains_static, 3946 ctx->rx_chains_dynamic); 3947 if (ret) { 3948 IWL_ERR(mvm, "Failed to add PHY context\n"); 3949 goto out; 3950 } 3951 3952 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 3953 *phy_ctxt_id = phy_ctxt->id; 3954 out: 3955 return ret; 3956 } 3957 3958 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 3959 struct ieee80211_chanctx_conf *ctx) 3960 { 3961 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3962 int ret; 3963 3964 mutex_lock(&mvm->mutex); 3965 ret = __iwl_mvm_add_chanctx(mvm, ctx); 3966 mutex_unlock(&mvm->mutex); 3967 3968 return ret; 3969 } 3970 3971 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 3972 struct ieee80211_chanctx_conf *ctx) 3973 { 3974 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3975 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3976 3977 lockdep_assert_held(&mvm->mutex); 3978 3979 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 3980 } 3981 3982 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 3983 struct ieee80211_chanctx_conf *ctx) 3984 { 3985 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3986 3987 mutex_lock(&mvm->mutex); 3988 __iwl_mvm_remove_chanctx(mvm, ctx); 3989 mutex_unlock(&mvm->mutex); 3990 } 3991 3992 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 3993 struct ieee80211_chanctx_conf *ctx, 3994 u32 changed) 3995 { 3996 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3997 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3998 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3999 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4000 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4001 4002 if (WARN_ONCE((phy_ctxt->ref > 1) && 4003 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4004 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4005 IEEE80211_CHANCTX_CHANGE_RADAR | 4006 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4007 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4008 phy_ctxt->ref, changed)) 4009 return; 4010 4011 mutex_lock(&mvm->mutex); 4012 4013 /* we are only changing the min_width, may be a noop */ 4014 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4015 if (phy_ctxt->width == def->width) 4016 goto out_unlock; 4017 4018 /* we are just toggling between 20_NOHT and 20 */ 4019 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4020 def->width <= NL80211_CHAN_WIDTH_20) 4021 goto out_unlock; 4022 } 4023 4024 iwl_mvm_bt_coex_vif_change(mvm); 4025 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4026 ctx->rx_chains_static, 4027 ctx->rx_chains_dynamic); 4028 4029 out_unlock: 4030 mutex_unlock(&mvm->mutex); 4031 } 4032 4033 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4034 struct ieee80211_vif *vif, 4035 struct ieee80211_chanctx_conf *ctx, 4036 bool switching_chanctx) 4037 { 4038 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4039 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4040 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4041 int ret; 4042 4043 lockdep_assert_held(&mvm->mutex); 4044 4045 mvmvif->phy_ctxt = phy_ctxt; 4046 4047 switch (vif->type) { 4048 case NL80211_IFTYPE_AP: 4049 /* only needed if we're switching chanctx (i.e. during CSA) */ 4050 if (switching_chanctx) { 4051 mvmvif->ap_ibss_active = true; 4052 break; 4053 } 4054 /* fall through */ 4055 case NL80211_IFTYPE_ADHOC: 4056 /* 4057 * The AP binding flow is handled as part of the start_ap flow 4058 * (in bss_info_changed), similarly for IBSS. 4059 */ 4060 ret = 0; 4061 goto out; 4062 case NL80211_IFTYPE_STATION: 4063 mvmvif->csa_bcn_pending = false; 4064 break; 4065 case NL80211_IFTYPE_MONITOR: 4066 /* always disable PS when a monitor interface is active */ 4067 mvmvif->ps_disabled = true; 4068 break; 4069 default: 4070 ret = -EINVAL; 4071 goto out; 4072 } 4073 4074 ret = iwl_mvm_binding_add_vif(mvm, vif); 4075 if (ret) 4076 goto out; 4077 4078 /* 4079 * Power state must be updated before quotas, 4080 * otherwise fw will complain. 4081 */ 4082 iwl_mvm_power_update_mac(mvm); 4083 4084 /* Setting the quota at this stage is only required for monitor 4085 * interfaces. For the other types, the bss_info changed flow 4086 * will handle quota settings. 4087 */ 4088 if (vif->type == NL80211_IFTYPE_MONITOR) { 4089 mvmvif->monitor_active = true; 4090 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4091 if (ret) 4092 goto out_remove_binding; 4093 4094 ret = iwl_mvm_add_snif_sta(mvm, vif); 4095 if (ret) 4096 goto out_remove_binding; 4097 4098 } 4099 4100 /* Handle binding during CSA */ 4101 if (vif->type == NL80211_IFTYPE_AP) { 4102 iwl_mvm_update_quotas(mvm, false, NULL); 4103 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4104 } 4105 4106 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { 4107 mvmvif->csa_bcn_pending = true; 4108 4109 if (!fw_has_capa(&mvm->fw->ucode_capa, 4110 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4111 u32 duration = 3 * vif->bss_conf.beacon_int; 4112 4113 /* Protect the session to make sure we hear the first 4114 * beacon on the new channel. 4115 */ 4116 iwl_mvm_protect_session(mvm, vif, duration, duration, 4117 vif->bss_conf.beacon_int / 2, 4118 true); 4119 } 4120 4121 iwl_mvm_update_quotas(mvm, false, NULL); 4122 } 4123 4124 goto out; 4125 4126 out_remove_binding: 4127 iwl_mvm_binding_remove_vif(mvm, vif); 4128 iwl_mvm_power_update_mac(mvm); 4129 out: 4130 if (ret) 4131 mvmvif->phy_ctxt = NULL; 4132 return ret; 4133 } 4134 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 4135 struct ieee80211_vif *vif, 4136 struct ieee80211_chanctx_conf *ctx) 4137 { 4138 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4139 int ret; 4140 4141 mutex_lock(&mvm->mutex); 4142 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); 4143 mutex_unlock(&mvm->mutex); 4144 4145 return ret; 4146 } 4147 4148 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 4149 struct ieee80211_vif *vif, 4150 struct ieee80211_chanctx_conf *ctx, 4151 bool switching_chanctx) 4152 { 4153 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4154 struct ieee80211_vif *disabled_vif = NULL; 4155 4156 lockdep_assert_held(&mvm->mutex); 4157 4158 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); 4159 4160 switch (vif->type) { 4161 case NL80211_IFTYPE_ADHOC: 4162 goto out; 4163 case NL80211_IFTYPE_MONITOR: 4164 mvmvif->monitor_active = false; 4165 mvmvif->ps_disabled = false; 4166 iwl_mvm_rm_snif_sta(mvm, vif); 4167 break; 4168 case NL80211_IFTYPE_AP: 4169 /* This part is triggered only during CSA */ 4170 if (!switching_chanctx || !mvmvif->ap_ibss_active) 4171 goto out; 4172 4173 mvmvif->csa_countdown = false; 4174 4175 /* Set CS bit on all the stations */ 4176 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 4177 4178 /* Save blocked iface, the timeout is set on the next beacon */ 4179 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 4180 4181 mvmvif->ap_ibss_active = false; 4182 break; 4183 case NL80211_IFTYPE_STATION: 4184 if (!switching_chanctx) 4185 break; 4186 4187 disabled_vif = vif; 4188 4189 if (!fw_has_capa(&mvm->fw->ucode_capa, 4190 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 4191 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 4192 break; 4193 default: 4194 break; 4195 } 4196 4197 iwl_mvm_update_quotas(mvm, false, disabled_vif); 4198 iwl_mvm_binding_remove_vif(mvm, vif); 4199 4200 out: 4201 mvmvif->phy_ctxt = NULL; 4202 iwl_mvm_power_update_mac(mvm); 4203 } 4204 4205 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 4206 struct ieee80211_vif *vif, 4207 struct ieee80211_chanctx_conf *ctx) 4208 { 4209 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4210 4211 mutex_lock(&mvm->mutex); 4212 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); 4213 mutex_unlock(&mvm->mutex); 4214 } 4215 4216 static int 4217 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 4218 struct ieee80211_vif_chanctx_switch *vifs) 4219 { 4220 int ret; 4221 4222 mutex_lock(&mvm->mutex); 4223 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4224 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 4225 4226 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 4227 if (ret) { 4228 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 4229 goto out_reassign; 4230 } 4231 4232 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4233 true); 4234 if (ret) { 4235 IWL_ERR(mvm, 4236 "failed to assign new_ctx during channel switch\n"); 4237 goto out_remove; 4238 } 4239 4240 /* we don't support TDLS during DCM - can be caused by channel switch */ 4241 if (iwl_mvm_phy_ctx_count(mvm) > 1) 4242 iwl_mvm_teardown_tdls_peers(mvm); 4243 4244 goto out; 4245 4246 out_remove: 4247 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 4248 4249 out_reassign: 4250 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 4251 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 4252 goto out_restart; 4253 } 4254 4255 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4256 true)) { 4257 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4258 goto out_restart; 4259 } 4260 4261 goto out; 4262 4263 out_restart: 4264 /* things keep failing, better restart the hw */ 4265 iwl_mvm_nic_restart(mvm, false); 4266 4267 out: 4268 mutex_unlock(&mvm->mutex); 4269 4270 return ret; 4271 } 4272 4273 static int 4274 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 4275 struct ieee80211_vif_chanctx_switch *vifs) 4276 { 4277 int ret; 4278 4279 mutex_lock(&mvm->mutex); 4280 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4281 4282 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4283 true); 4284 if (ret) { 4285 IWL_ERR(mvm, 4286 "failed to assign new_ctx during channel switch\n"); 4287 goto out_reassign; 4288 } 4289 4290 goto out; 4291 4292 out_reassign: 4293 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4294 true)) { 4295 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4296 goto out_restart; 4297 } 4298 4299 goto out; 4300 4301 out_restart: 4302 /* things keep failing, better restart the hw */ 4303 iwl_mvm_nic_restart(mvm, false); 4304 4305 out: 4306 mutex_unlock(&mvm->mutex); 4307 4308 return ret; 4309 } 4310 4311 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 4312 struct ieee80211_vif_chanctx_switch *vifs, 4313 int n_vifs, 4314 enum ieee80211_chanctx_switch_mode mode) 4315 { 4316 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4317 int ret; 4318 4319 /* we only support a single-vif right now */ 4320 if (n_vifs > 1) 4321 return -EOPNOTSUPP; 4322 4323 switch (mode) { 4324 case CHANCTX_SWMODE_SWAP_CONTEXTS: 4325 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); 4326 break; 4327 case CHANCTX_SWMODE_REASSIGN_VIF: 4328 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); 4329 break; 4330 default: 4331 ret = -EOPNOTSUPP; 4332 break; 4333 } 4334 4335 return ret; 4336 } 4337 4338 static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 4339 { 4340 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4341 4342 return mvm->ibss_manager; 4343 } 4344 4345 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, 4346 struct ieee80211_sta *sta, 4347 bool set) 4348 { 4349 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4350 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4351 4352 if (!mvm_sta || !mvm_sta->vif) { 4353 IWL_ERR(mvm, "Station is not associated to a vif\n"); 4354 return -EINVAL; 4355 } 4356 4357 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); 4358 } 4359 4360 #ifdef CONFIG_NL80211_TESTMODE 4361 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 4362 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 4363 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 4364 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 4365 }; 4366 4367 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 4368 struct ieee80211_vif *vif, 4369 void *data, int len) 4370 { 4371 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 4372 int err; 4373 u32 noa_duration; 4374 4375 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 4376 iwl_mvm_tm_policy, NULL); 4377 if (err) 4378 return err; 4379 4380 if (!tb[IWL_MVM_TM_ATTR_CMD]) 4381 return -EINVAL; 4382 4383 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 4384 case IWL_MVM_TM_CMD_SET_NOA: 4385 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 4386 !vif->bss_conf.enable_beacon || 4387 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 4388 return -EINVAL; 4389 4390 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 4391 if (noa_duration >= vif->bss_conf.beacon_int) 4392 return -EINVAL; 4393 4394 mvm->noa_duration = noa_duration; 4395 mvm->noa_vif = vif; 4396 4397 return iwl_mvm_update_quotas(mvm, true, NULL); 4398 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 4399 /* must be associated client vif - ignore authorized */ 4400 if (!vif || vif->type != NL80211_IFTYPE_STATION || 4401 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || 4402 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 4403 return -EINVAL; 4404 4405 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 4406 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 4407 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4408 } 4409 4410 return -EOPNOTSUPP; 4411 } 4412 4413 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 4414 struct ieee80211_vif *vif, 4415 void *data, int len) 4416 { 4417 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4418 int err; 4419 4420 mutex_lock(&mvm->mutex); 4421 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 4422 mutex_unlock(&mvm->mutex); 4423 4424 return err; 4425 } 4426 #endif 4427 4428 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, 4429 struct ieee80211_vif *vif, 4430 struct ieee80211_channel_switch *chsw) 4431 { 4432 /* By implementing this operation, we prevent mac80211 from 4433 * starting its own channel switch timer, so that we can call 4434 * ieee80211_chswitch_done() ourselves at the right time 4435 * (which is when the absence time event starts). 4436 */ 4437 4438 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 4439 "dummy channel switch op\n"); 4440 } 4441 4442 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 4443 struct ieee80211_vif *vif, 4444 struct ieee80211_channel_switch *chsw) 4445 { 4446 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4447 struct iwl_chan_switch_te_cmd cmd = { 4448 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4449 mvmvif->color)), 4450 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4451 .tsf = cpu_to_le32(chsw->timestamp), 4452 .cs_count = chsw->count, 4453 .cs_mode = chsw->block_tx, 4454 }; 4455 4456 lockdep_assert_held(&mvm->mutex); 4457 4458 if (chsw->delay) 4459 cmd.cs_delayed_bcn_count = 4460 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 4461 4462 return iwl_mvm_send_cmd_pdu(mvm, 4463 WIDE_ID(MAC_CONF_GROUP, 4464 CHANNEL_SWITCH_TIME_EVENT_CMD), 4465 0, sizeof(cmd), &cmd); 4466 } 4467 4468 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 4469 struct ieee80211_vif *vif, 4470 struct ieee80211_channel_switch *chsw) 4471 { 4472 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4473 u32 apply_time; 4474 4475 /* Schedule the time event to a bit before beacon 1, 4476 * to make sure we're in the new channel when the 4477 * GO/AP arrives. In case count <= 1 immediately schedule the 4478 * TE (this might result with some packet loss or connection 4479 * loss). 4480 */ 4481 if (chsw->count <= 1) 4482 apply_time = 0; 4483 else 4484 apply_time = chsw->device_timestamp + 4485 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 4486 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 4487 4488 if (chsw->block_tx) 4489 iwl_mvm_csa_client_absent(mvm, vif); 4490 4491 if (mvmvif->bf_data.bf_enabled) { 4492 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4493 4494 if (ret) 4495 return ret; 4496 } 4497 4498 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 4499 apply_time); 4500 4501 return 0; 4502 } 4503 4504 #define IWL_MAX_CSA_BLOCK_TX 1500 4505 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 4506 struct ieee80211_vif *vif, 4507 struct ieee80211_channel_switch *chsw) 4508 { 4509 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4510 struct ieee80211_vif *csa_vif; 4511 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4512 int ret; 4513 4514 mutex_lock(&mvm->mutex); 4515 4516 mvmvif->csa_failed = false; 4517 4518 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 4519 chsw->chandef.center_freq1); 4520 4521 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 4522 ieee80211_vif_to_wdev(vif), 4523 FW_DBG_TRIGGER_CHANNEL_SWITCH); 4524 4525 switch (vif->type) { 4526 case NL80211_IFTYPE_AP: 4527 csa_vif = 4528 rcu_dereference_protected(mvm->csa_vif, 4529 lockdep_is_held(&mvm->mutex)); 4530 if (WARN_ONCE(csa_vif && csa_vif->csa_active, 4531 "Another CSA is already in progress")) { 4532 ret = -EBUSY; 4533 goto out_unlock; 4534 } 4535 4536 /* we still didn't unblock tx. prevent new CS meanwhile */ 4537 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 4538 lockdep_is_held(&mvm->mutex))) { 4539 ret = -EBUSY; 4540 goto out_unlock; 4541 } 4542 4543 rcu_assign_pointer(mvm->csa_vif, vif); 4544 4545 if (WARN_ONCE(mvmvif->csa_countdown, 4546 "Previous CSA countdown didn't complete")) { 4547 ret = -EBUSY; 4548 goto out_unlock; 4549 } 4550 4551 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 4552 4553 break; 4554 case NL80211_IFTYPE_STATION: 4555 if (chsw->block_tx) { 4556 /* 4557 * In case of undetermined / long time with immediate 4558 * quiet monitor status to gracefully disconnect 4559 */ 4560 if (!chsw->count || 4561 chsw->count * vif->bss_conf.beacon_int > 4562 IWL_MAX_CSA_BLOCK_TX) 4563 schedule_delayed_work(&mvmvif->csa_work, 4564 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 4565 } 4566 4567 if (!fw_has_capa(&mvm->fw->ucode_capa, 4568 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4569 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 4570 if (ret) 4571 goto out_unlock; 4572 } else { 4573 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 4574 } 4575 4576 mvmvif->csa_count = chsw->count; 4577 mvmvif->csa_misbehave = false; 4578 break; 4579 default: 4580 break; 4581 } 4582 4583 mvmvif->ps_disabled = true; 4584 4585 ret = iwl_mvm_power_update_ps(mvm); 4586 if (ret) 4587 goto out_unlock; 4588 4589 /* we won't be on this channel any longer */ 4590 iwl_mvm_teardown_tdls_peers(mvm); 4591 4592 out_unlock: 4593 mutex_unlock(&mvm->mutex); 4594 4595 return ret; 4596 } 4597 4598 static void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 4599 struct ieee80211_vif *vif, 4600 struct ieee80211_channel_switch *chsw) 4601 { 4602 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4603 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4604 struct iwl_chan_switch_te_cmd cmd = { 4605 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4606 mvmvif->color)), 4607 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 4608 .tsf = cpu_to_le32(chsw->timestamp), 4609 .cs_count = chsw->count, 4610 .cs_mode = chsw->block_tx, 4611 }; 4612 4613 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 4614 return; 4615 4616 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 4617 if (mvmvif->csa_misbehave) { 4618 /* Second time, give up on this AP*/ 4619 iwl_mvm_abort_channel_switch(hw, vif); 4620 ieee80211_chswitch_done(vif, false); 4621 mvmvif->csa_misbehave = false; 4622 return; 4623 } 4624 mvmvif->csa_misbehave = true; 4625 } 4626 mvmvif->csa_count = chsw->count; 4627 4628 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d\n", mvmvif->id); 4629 4630 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 4631 WIDE_ID(MAC_CONF_GROUP, 4632 CHANNEL_SWITCH_TIME_EVENT_CMD), 4633 CMD_ASYNC, sizeof(cmd), &cmd)); 4634 } 4635 4636 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 4637 { 4638 int i; 4639 4640 if (!iwl_mvm_has_new_tx_api(mvm)) { 4641 if (drop) { 4642 mutex_lock(&mvm->mutex); 4643 iwl_mvm_flush_tx_path(mvm, 4644 iwl_mvm_flushable_queues(mvm) & queues, 0); 4645 mutex_unlock(&mvm->mutex); 4646 } else { 4647 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 4648 } 4649 return; 4650 } 4651 4652 mutex_lock(&mvm->mutex); 4653 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 4654 struct ieee80211_sta *sta; 4655 4656 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4657 lockdep_is_held(&mvm->mutex)); 4658 if (IS_ERR_OR_NULL(sta)) 4659 continue; 4660 4661 if (drop) 4662 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF, 0); 4663 else 4664 iwl_mvm_wait_sta_queues_empty(mvm, 4665 iwl_mvm_sta_from_mac80211(sta)); 4666 } 4667 mutex_unlock(&mvm->mutex); 4668 } 4669 4670 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, 4671 struct ieee80211_vif *vif, u32 queues, bool drop) 4672 { 4673 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4674 struct iwl_mvm_vif *mvmvif; 4675 struct iwl_mvm_sta *mvmsta; 4676 struct ieee80211_sta *sta; 4677 int i; 4678 u32 msk = 0; 4679 4680 if (!vif) { 4681 iwl_mvm_flush_no_vif(mvm, queues, drop); 4682 return; 4683 } 4684 4685 if (vif->type != NL80211_IFTYPE_STATION) 4686 return; 4687 4688 /* Make sure we're done with the deferred traffic before flushing */ 4689 flush_work(&mvm->add_stream_wk); 4690 4691 mutex_lock(&mvm->mutex); 4692 mvmvif = iwl_mvm_vif_from_mac80211(vif); 4693 4694 /* flush the AP-station and all TDLS peers */ 4695 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 4696 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4697 lockdep_is_held(&mvm->mutex)); 4698 if (IS_ERR_OR_NULL(sta)) 4699 continue; 4700 4701 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4702 if (mvmsta->vif != vif) 4703 continue; 4704 4705 /* make sure only TDLS peers or the AP are flushed */ 4706 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); 4707 4708 if (drop) { 4709 if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0)) 4710 IWL_ERR(mvm, "flush request fail\n"); 4711 } else { 4712 msk |= mvmsta->tfd_queue_msk; 4713 if (iwl_mvm_has_new_tx_api(mvm)) 4714 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 4715 } 4716 } 4717 4718 mutex_unlock(&mvm->mutex); 4719 4720 /* this can take a while, and we may need/want other operations 4721 * to succeed while doing this, so do it without the mutex held 4722 */ 4723 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 4724 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 4725 } 4726 4727 static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 4728 struct survey_info *survey) 4729 { 4730 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4731 int ret; 4732 4733 memset(survey, 0, sizeof(*survey)); 4734 4735 /* only support global statistics right now */ 4736 if (idx != 0) 4737 return -ENOENT; 4738 4739 if (!fw_has_capa(&mvm->fw->ucode_capa, 4740 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 4741 return -ENOENT; 4742 4743 mutex_lock(&mvm->mutex); 4744 4745 if (iwl_mvm_firmware_running(mvm)) { 4746 ret = iwl_mvm_request_statistics(mvm, false); 4747 if (ret) 4748 goto out; 4749 } 4750 4751 survey->filled = SURVEY_INFO_TIME | 4752 SURVEY_INFO_TIME_RX | 4753 SURVEY_INFO_TIME_TX | 4754 SURVEY_INFO_TIME_SCAN; 4755 survey->time = mvm->accu_radio_stats.on_time_rf + 4756 mvm->radio_stats.on_time_rf; 4757 do_div(survey->time, USEC_PER_MSEC); 4758 4759 survey->time_rx = mvm->accu_radio_stats.rx_time + 4760 mvm->radio_stats.rx_time; 4761 do_div(survey->time_rx, USEC_PER_MSEC); 4762 4763 survey->time_tx = mvm->accu_radio_stats.tx_time + 4764 mvm->radio_stats.tx_time; 4765 do_div(survey->time_tx, USEC_PER_MSEC); 4766 4767 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 4768 mvm->radio_stats.on_time_scan; 4769 do_div(survey->time_scan, USEC_PER_MSEC); 4770 4771 ret = 0; 4772 out: 4773 mutex_unlock(&mvm->mutex); 4774 return ret; 4775 } 4776 4777 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 4778 { 4779 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 4780 case RATE_MCS_CHAN_WIDTH_20: 4781 rinfo->bw = RATE_INFO_BW_20; 4782 break; 4783 case RATE_MCS_CHAN_WIDTH_40: 4784 rinfo->bw = RATE_INFO_BW_40; 4785 break; 4786 case RATE_MCS_CHAN_WIDTH_80: 4787 rinfo->bw = RATE_INFO_BW_80; 4788 break; 4789 case RATE_MCS_CHAN_WIDTH_160: 4790 rinfo->bw = RATE_INFO_BW_160; 4791 break; 4792 } 4793 4794 if (rate_n_flags & RATE_MCS_HT_MSK) { 4795 rinfo->flags |= RATE_INFO_FLAGS_MCS; 4796 rinfo->mcs = u32_get_bits(rate_n_flags, RATE_HT_MCS_INDEX_MSK); 4797 rinfo->nss = u32_get_bits(rate_n_flags, 4798 RATE_HT_MCS_NSS_MSK) + 1; 4799 if (rate_n_flags & RATE_MCS_SGI_MSK) 4800 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 4801 } else if (rate_n_flags & RATE_MCS_VHT_MSK) { 4802 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 4803 rinfo->mcs = u32_get_bits(rate_n_flags, 4804 RATE_VHT_MCS_RATE_CODE_MSK); 4805 rinfo->nss = u32_get_bits(rate_n_flags, 4806 RATE_VHT_MCS_NSS_MSK) + 1; 4807 if (rate_n_flags & RATE_MCS_SGI_MSK) 4808 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 4809 } else if (rate_n_flags & RATE_MCS_HE_MSK) { 4810 u32 gi_ltf = u32_get_bits(rate_n_flags, 4811 RATE_MCS_HE_GI_LTF_MSK); 4812 4813 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 4814 rinfo->mcs = u32_get_bits(rate_n_flags, 4815 RATE_VHT_MCS_RATE_CODE_MSK); 4816 rinfo->nss = u32_get_bits(rate_n_flags, 4817 RATE_VHT_MCS_NSS_MSK) + 1; 4818 4819 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 4820 rinfo->bw = RATE_INFO_BW_HE_RU; 4821 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 4822 } 4823 4824 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 4825 case RATE_MCS_HE_TYPE_SU: 4826 case RATE_MCS_HE_TYPE_EXT_SU: 4827 if (gi_ltf == 0 || gi_ltf == 1) 4828 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 4829 else if (gi_ltf == 2) 4830 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 4831 else if (rate_n_flags & RATE_MCS_SGI_MSK) 4832 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 4833 else 4834 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 4835 break; 4836 case RATE_MCS_HE_TYPE_MU: 4837 if (gi_ltf == 0 || gi_ltf == 1) 4838 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 4839 else if (gi_ltf == 2) 4840 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 4841 else 4842 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 4843 break; 4844 case RATE_MCS_HE_TYPE_TRIG: 4845 if (gi_ltf == 0 || gi_ltf == 1) 4846 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 4847 else 4848 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 4849 break; 4850 } 4851 4852 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 4853 rinfo->he_dcm = 1; 4854 } else { 4855 switch (u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK)) { 4856 case IWL_RATE_1M_PLCP: 4857 rinfo->legacy = 10; 4858 break; 4859 case IWL_RATE_2M_PLCP: 4860 rinfo->legacy = 20; 4861 break; 4862 case IWL_RATE_5M_PLCP: 4863 rinfo->legacy = 55; 4864 break; 4865 case IWL_RATE_11M_PLCP: 4866 rinfo->legacy = 110; 4867 break; 4868 case IWL_RATE_6M_PLCP: 4869 rinfo->legacy = 60; 4870 break; 4871 case IWL_RATE_9M_PLCP: 4872 rinfo->legacy = 90; 4873 break; 4874 case IWL_RATE_12M_PLCP: 4875 rinfo->legacy = 120; 4876 break; 4877 case IWL_RATE_18M_PLCP: 4878 rinfo->legacy = 180; 4879 break; 4880 case IWL_RATE_24M_PLCP: 4881 rinfo->legacy = 240; 4882 break; 4883 case IWL_RATE_36M_PLCP: 4884 rinfo->legacy = 360; 4885 break; 4886 case IWL_RATE_48M_PLCP: 4887 rinfo->legacy = 480; 4888 break; 4889 case IWL_RATE_54M_PLCP: 4890 rinfo->legacy = 540; 4891 break; 4892 } 4893 } 4894 } 4895 4896 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 4897 struct ieee80211_vif *vif, 4898 struct ieee80211_sta *sta, 4899 struct station_info *sinfo) 4900 { 4901 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4902 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4903 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 4904 4905 if (mvmsta->avg_energy) { 4906 sinfo->signal_avg = mvmsta->avg_energy; 4907 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 4908 } 4909 4910 if (iwl_mvm_has_tlc_offload(mvm)) { 4911 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw; 4912 4913 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 4914 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 4915 } 4916 4917 /* if beacon filtering isn't on mac80211 does it anyway */ 4918 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 4919 return; 4920 4921 if (!vif->bss_conf.assoc) 4922 return; 4923 4924 mutex_lock(&mvm->mutex); 4925 4926 if (mvmvif->ap_sta_id != mvmsta->sta_id) 4927 goto unlock; 4928 4929 if (iwl_mvm_request_statistics(mvm, false)) 4930 goto unlock; 4931 4932 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + 4933 mvmvif->beacon_stats.accu_num_beacons; 4934 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 4935 if (mvmvif->beacon_stats.avg_signal) { 4936 /* firmware only reports a value after RXing a few beacons */ 4937 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; 4938 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 4939 } 4940 unlock: 4941 mutex_unlock(&mvm->mutex); 4942 } 4943 4944 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 4945 struct ieee80211_vif *vif, 4946 const struct ieee80211_event *event) 4947 { 4948 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 4949 do { \ 4950 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 4951 break; \ 4952 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 4953 } while (0) 4954 4955 struct iwl_fw_dbg_trigger_tlv *trig; 4956 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 4957 4958 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 4959 FW_DBG_TRIGGER_MLME); 4960 if (!trig) 4961 return; 4962 4963 trig_mlme = (void *)trig->data; 4964 4965 if (event->u.mlme.data == ASSOC_EVENT) { 4966 if (event->u.mlme.status == MLME_DENIED) 4967 CHECK_MLME_TRIGGER(stop_assoc_denied, 4968 "DENIED ASSOC: reason %d", 4969 event->u.mlme.reason); 4970 else if (event->u.mlme.status == MLME_TIMEOUT) 4971 CHECK_MLME_TRIGGER(stop_assoc_timeout, 4972 "ASSOC TIMEOUT"); 4973 } else if (event->u.mlme.data == AUTH_EVENT) { 4974 if (event->u.mlme.status == MLME_DENIED) 4975 CHECK_MLME_TRIGGER(stop_auth_denied, 4976 "DENIED AUTH: reason %d", 4977 event->u.mlme.reason); 4978 else if (event->u.mlme.status == MLME_TIMEOUT) 4979 CHECK_MLME_TRIGGER(stop_auth_timeout, 4980 "AUTH TIMEOUT"); 4981 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 4982 CHECK_MLME_TRIGGER(stop_rx_deauth, 4983 "DEAUTH RX %d", event->u.mlme.reason); 4984 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 4985 CHECK_MLME_TRIGGER(stop_tx_deauth, 4986 "DEAUTH TX %d", event->u.mlme.reason); 4987 } 4988 #undef CHECK_MLME_TRIGGER 4989 } 4990 4991 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 4992 struct ieee80211_vif *vif, 4993 const struct ieee80211_event *event) 4994 { 4995 struct iwl_fw_dbg_trigger_tlv *trig; 4996 struct iwl_fw_dbg_trigger_ba *ba_trig; 4997 4998 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 4999 FW_DBG_TRIGGER_BA); 5000 if (!trig) 5001 return; 5002 5003 ba_trig = (void *)trig->data; 5004 5005 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 5006 return; 5007 5008 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 5009 "BAR received from %pM, tid %d, ssn %d", 5010 event->u.ba.sta->addr, event->u.ba.tid, 5011 event->u.ba.ssn); 5012 } 5013 5014 static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 5015 struct ieee80211_vif *vif, 5016 const struct ieee80211_event *event) 5017 { 5018 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5019 5020 switch (event->type) { 5021 case MLME_EVENT: 5022 iwl_mvm_event_mlme_callback(mvm, vif, event); 5023 break; 5024 case BAR_RX_EVENT: 5025 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 5026 break; 5027 case BA_FRAME_TIMEOUT: 5028 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 5029 event->u.ba.tid); 5030 break; 5031 default: 5032 break; 5033 } 5034 } 5035 5036 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 5037 struct iwl_mvm_internal_rxq_notif *notif, 5038 u32 size) 5039 { 5040 u32 qmask = BIT(mvm->trans->num_rx_queues) - 1; 5041 int ret; 5042 5043 5044 if (!iwl_mvm_has_new_rx_api(mvm)) 5045 return; 5046 5047 if (notif->sync) { 5048 notif->cookie = mvm->queue_sync_cookie; 5049 atomic_set(&mvm->queue_sync_counter, 5050 mvm->trans->num_rx_queues); 5051 } 5052 5053 ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, 5054 size, !notif->sync); 5055 if (ret) { 5056 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 5057 goto out; 5058 } 5059 5060 if (notif->sync) { 5061 lockdep_assert_held(&mvm->mutex); 5062 ret = wait_event_timeout(mvm->rx_sync_waitq, 5063 atomic_read(&mvm->queue_sync_counter) == 0 || 5064 iwl_mvm_is_radio_killed(mvm), 5065 HZ); 5066 WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm)); 5067 } 5068 5069 out: 5070 atomic_set(&mvm->queue_sync_counter, 0); 5071 if (notif->sync) 5072 mvm->queue_sync_cookie++; 5073 } 5074 5075 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 5076 { 5077 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5078 struct iwl_mvm_internal_rxq_notif data = { 5079 .type = IWL_MVM_RXQ_EMPTY, 5080 .sync = 1, 5081 }; 5082 5083 mutex_lock(&mvm->mutex); 5084 iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data)); 5085 mutex_unlock(&mvm->mutex); 5086 } 5087 5088 static int 5089 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 5090 struct ieee80211_vif *vif, 5091 struct cfg80211_ftm_responder_stats *stats) 5092 { 5093 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5094 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5095 5096 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 5097 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 5098 return -EINVAL; 5099 5100 mutex_lock(&mvm->mutex); 5101 *stats = mvm->ftm_resp_stats; 5102 mutex_unlock(&mvm->mutex); 5103 5104 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 5105 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 5106 BIT(NL80211_FTM_STATS_FAILED_NUM) | 5107 BIT(NL80211_FTM_STATS_ASAP_NUM) | 5108 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 5109 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 5110 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 5111 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 5112 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 5113 5114 return 0; 5115 } 5116 5117 static int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, 5118 struct ieee80211_vif *vif, 5119 struct cfg80211_pmsr_request *request) 5120 { 5121 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5122 int ret; 5123 5124 mutex_lock(&mvm->mutex); 5125 ret = iwl_mvm_ftm_start(mvm, vif, request); 5126 mutex_unlock(&mvm->mutex); 5127 5128 return ret; 5129 } 5130 5131 static void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, 5132 struct ieee80211_vif *vif, 5133 struct cfg80211_pmsr_request *request) 5134 { 5135 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5136 5137 mutex_lock(&mvm->mutex); 5138 iwl_mvm_ftm_abort(mvm, request); 5139 mutex_unlock(&mvm->mutex); 5140 } 5141 5142 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 5143 { 5144 u8 protocol = ip_hdr(skb)->protocol; 5145 5146 if (!IS_ENABLED(CONFIG_INET)) 5147 return false; 5148 5149 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 5150 } 5151 5152 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 5153 struct sk_buff *head, 5154 struct sk_buff *skb) 5155 { 5156 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5157 5158 /* For now don't aggregate IPv6 in AMSDU */ 5159 if (skb->protocol != htons(ETH_P_IP)) 5160 return false; 5161 5162 if (!iwl_mvm_is_csum_supported(mvm)) 5163 return true; 5164 5165 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 5166 } 5167 5168 const struct ieee80211_ops iwl_mvm_hw_ops = { 5169 .tx = iwl_mvm_mac_tx, 5170 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 5171 .ampdu_action = iwl_mvm_mac_ampdu_action, 5172 .get_antenna = iwl_mvm_op_get_antenna, 5173 .start = iwl_mvm_mac_start, 5174 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 5175 .stop = iwl_mvm_mac_stop, 5176 .add_interface = iwl_mvm_mac_add_interface, 5177 .remove_interface = iwl_mvm_mac_remove_interface, 5178 .config = iwl_mvm_mac_config, 5179 .prepare_multicast = iwl_mvm_prepare_multicast, 5180 .configure_filter = iwl_mvm_configure_filter, 5181 .config_iface_filter = iwl_mvm_config_iface_filter, 5182 .bss_info_changed = iwl_mvm_bss_info_changed, 5183 .hw_scan = iwl_mvm_mac_hw_scan, 5184 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 5185 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 5186 .sta_state = iwl_mvm_mac_sta_state, 5187 .sta_notify = iwl_mvm_mac_sta_notify, 5188 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 5189 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 5190 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 5191 .sta_rc_update = iwl_mvm_sta_rc_update, 5192 .conf_tx = iwl_mvm_mac_conf_tx, 5193 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 5194 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 5195 .flush = iwl_mvm_mac_flush, 5196 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 5197 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 5198 .set_key = iwl_mvm_mac_set_key, 5199 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 5200 .remain_on_channel = iwl_mvm_roc, 5201 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 5202 .add_chanctx = iwl_mvm_add_chanctx, 5203 .remove_chanctx = iwl_mvm_remove_chanctx, 5204 .change_chanctx = iwl_mvm_change_chanctx, 5205 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 5206 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 5207 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 5208 5209 .start_ap = iwl_mvm_start_ap_ibss, 5210 .stop_ap = iwl_mvm_stop_ap_ibss, 5211 .join_ibss = iwl_mvm_start_ap_ibss, 5212 .leave_ibss = iwl_mvm_stop_ap_ibss, 5213 5214 .tx_last_beacon = iwl_mvm_tx_last_beacon, 5215 5216 .set_tim = iwl_mvm_set_tim, 5217 5218 .channel_switch = iwl_mvm_channel_switch, 5219 .pre_channel_switch = iwl_mvm_pre_channel_switch, 5220 .post_channel_switch = iwl_mvm_post_channel_switch, 5221 .abort_channel_switch = iwl_mvm_abort_channel_switch, 5222 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 5223 5224 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 5225 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 5226 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 5227 5228 .event_callback = iwl_mvm_mac_event_callback, 5229 5230 .sync_rx_queues = iwl_mvm_sync_rx_queues, 5231 5232 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 5233 5234 #ifdef CONFIG_PM_SLEEP 5235 /* look at d3.c */ 5236 .suspend = iwl_mvm_suspend, 5237 .resume = iwl_mvm_resume, 5238 .set_wakeup = iwl_mvm_set_wakeup, 5239 .set_rekey_data = iwl_mvm_set_rekey_data, 5240 #if IS_ENABLED(CONFIG_IPV6) 5241 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 5242 #endif 5243 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 5244 #endif 5245 .get_survey = iwl_mvm_mac_get_survey, 5246 .sta_statistics = iwl_mvm_mac_sta_statistics, 5247 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 5248 .start_pmsr = iwl_mvm_start_pmsr, 5249 .abort_pmsr = iwl_mvm_abort_pmsr, 5250 5251 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 5252 #ifdef CONFIG_IWLWIFI_DEBUGFS 5253 .sta_add_debugfs = iwl_mvm_sta_add_debugfs, 5254 #endif 5255 }; 5256