1 /****************************************************************************** 2 * 3 * This file is provided under a dual BSD/GPLv2 license. When using or 4 * redistributing this file, you may do so under either license. 5 * 6 * GPL LICENSE SUMMARY 7 * 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 11 * Copyright(c) 2018 - 2019 Intel Corporation 12 * 13 * This program is free software; you can redistribute it and/or modify 14 * it under the terms of version 2 of the GNU General Public License as 15 * published by the Free Software Foundation. 16 * 17 * This program is distributed in the hope that it will be useful, but 18 * WITHOUT ANY WARRANTY; without even the implied warranty of 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 20 * General Public License for more details. 21 * 22 * The full GNU General Public License is included in this distribution 23 * in the file called COPYING. 24 * 25 * Contact Information: 26 * Intel Linux Wireless <linuxwifi@intel.com> 27 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 28 * 29 * BSD LICENSE 30 * 31 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 32 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 33 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 34 * Copyright(c) 2018 - 2019 Intel Corporation 35 * All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 41 * * Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * * Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in 45 * the documentation and/or other materials provided with the 46 * distribution. 47 * * Neither the name Intel Corporation nor the names of its 48 * contributors may be used to endorse or promote products derived 49 * from this software without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 52 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 53 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 54 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 55 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 56 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 57 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 61 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 62 * 63 *****************************************************************************/ 64 #include <linux/kernel.h> 65 #include <linux/slab.h> 66 #include <linux/skbuff.h> 67 #include <linux/netdevice.h> 68 #include <linux/etherdevice.h> 69 #include <linux/ip.h> 70 #include <linux/if_arp.h> 71 #include <linux/time.h> 72 #include <net/mac80211.h> 73 #include <net/ieee80211_radiotap.h> 74 #include <net/tcp.h> 75 76 #include "iwl-op-mode.h" 77 #include "iwl-io.h" 78 #include "mvm.h" 79 #include "sta.h" 80 #include "time-event.h" 81 #include "iwl-eeprom-parse.h" 82 #include "iwl-phy-db.h" 83 #include "testmode.h" 84 #include "fw/error-dump.h" 85 #include "iwl-prph.h" 86 #include "iwl-nvm-parse.h" 87 88 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 89 { 90 .max = 1, 91 .types = BIT(NL80211_IFTYPE_STATION), 92 }, 93 { 94 .max = 1, 95 .types = BIT(NL80211_IFTYPE_AP) | 96 BIT(NL80211_IFTYPE_P2P_CLIENT) | 97 BIT(NL80211_IFTYPE_P2P_GO), 98 }, 99 { 100 .max = 1, 101 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 102 }, 103 }; 104 105 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 106 { 107 .num_different_channels = 2, 108 .max_interfaces = 3, 109 .limits = iwl_mvm_limits, 110 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 111 }, 112 }; 113 114 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 115 /* 116 * Use the reserved field to indicate magic values. 117 * these values will only be used internally by the driver, 118 * and won't make it to the fw (reserved will be 0). 119 * BC_FILTER_MAGIC_IP - configure the val of this attribute to 120 * be the vif's ip address. in case there is not a single 121 * ip address (0, or more than 1), this attribute will 122 * be skipped. 123 * BC_FILTER_MAGIC_MAC - set the val of this attribute to 124 * the LSB bytes of the vif's mac address 125 */ 126 enum { 127 BC_FILTER_MAGIC_NONE = 0, 128 BC_FILTER_MAGIC_IP, 129 BC_FILTER_MAGIC_MAC, 130 }; 131 132 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { 133 { 134 /* arp */ 135 .discard = 0, 136 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, 137 .attrs = { 138 { 139 /* frame type - arp, hw type - ethernet */ 140 .offset_type = 141 BCAST_FILTER_OFFSET_PAYLOAD_START, 142 .offset = sizeof(rfc1042_header), 143 .val = cpu_to_be32(0x08060001), 144 .mask = cpu_to_be32(0xffffffff), 145 }, 146 { 147 /* arp dest ip */ 148 .offset_type = 149 BCAST_FILTER_OFFSET_PAYLOAD_START, 150 .offset = sizeof(rfc1042_header) + 2 + 151 sizeof(struct arphdr) + 152 ETH_ALEN + sizeof(__be32) + 153 ETH_ALEN, 154 .mask = cpu_to_be32(0xffffffff), 155 /* mark it as special field */ 156 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), 157 }, 158 }, 159 }, 160 { 161 /* dhcp offer bcast */ 162 .discard = 0, 163 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, 164 .attrs = { 165 { 166 /* udp dest port - 68 (bootp client)*/ 167 .offset_type = BCAST_FILTER_OFFSET_IP_END, 168 .offset = offsetof(struct udphdr, dest), 169 .val = cpu_to_be32(0x00440000), 170 .mask = cpu_to_be32(0xffff0000), 171 }, 172 { 173 /* dhcp - lsb bytes of client hw address */ 174 .offset_type = BCAST_FILTER_OFFSET_IP_END, 175 .offset = 38, 176 .mask = cpu_to_be32(0xffffffff), 177 /* mark it as special field */ 178 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), 179 }, 180 }, 181 }, 182 /* last filter must be empty */ 183 {}, 184 }; 185 #endif 186 187 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 188 .max_peers = IWL_MVM_TOF_MAX_APS, 189 .report_ap_tsf = 1, 190 .randomize_mac_addr = 1, 191 192 .ftm = { 193 .supported = 1, 194 .asap = 1, 195 .non_asap = 1, 196 .request_lci = 1, 197 .request_civicloc = 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 }, 208 }; 209 210 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 211 enum set_key_cmd cmd, 212 struct ieee80211_vif *vif, 213 struct ieee80211_sta *sta, 214 struct ieee80211_key_conf *key); 215 216 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 217 { 218 int i; 219 220 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 221 for (i = 0; i < NUM_PHY_CTX; i++) { 222 mvm->phy_ctxts[i].id = i; 223 mvm->phy_ctxts[i].ref = 0; 224 } 225 } 226 227 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 228 const char *alpha2, 229 enum iwl_mcc_source src_id, 230 bool *changed) 231 { 232 struct ieee80211_regdomain *regd = NULL; 233 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 234 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 235 struct iwl_mcc_update_resp *resp; 236 237 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 238 239 lockdep_assert_held(&mvm->mutex); 240 241 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 242 if (IS_ERR_OR_NULL(resp)) { 243 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 244 PTR_ERR_OR_ZERO(resp)); 245 goto out; 246 } 247 248 if (changed) { 249 u32 status = le32_to_cpu(resp->status); 250 251 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 252 status == MCC_RESP_ILLEGAL); 253 } 254 255 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 256 __le32_to_cpu(resp->n_channels), 257 resp->channels, 258 __le16_to_cpu(resp->mcc), 259 __le16_to_cpu(resp->geo_info), 260 __le16_to_cpu(resp->cap)); 261 /* Store the return source id */ 262 src_id = resp->source_id; 263 kfree(resp); 264 if (IS_ERR_OR_NULL(regd)) { 265 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 266 PTR_ERR_OR_ZERO(regd)); 267 goto out; 268 } 269 270 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 271 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 272 mvm->lar_regdom_set = true; 273 mvm->mcc_src = src_id; 274 275 out: 276 return regd; 277 } 278 279 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 280 { 281 bool changed; 282 struct ieee80211_regdomain *regd; 283 284 if (!iwl_mvm_is_lar_supported(mvm)) 285 return; 286 287 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 288 if (!IS_ERR_OR_NULL(regd)) { 289 /* only update the regulatory core if changed */ 290 if (changed) 291 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 292 293 kfree(regd); 294 } 295 } 296 297 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 298 bool *changed) 299 { 300 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 301 iwl_mvm_is_wifi_mcc_supported(mvm) ? 302 MCC_SOURCE_GET_CURRENT : 303 MCC_SOURCE_OLD_FW, changed); 304 } 305 306 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) 307 { 308 enum iwl_mcc_source used_src; 309 struct ieee80211_regdomain *regd; 310 int ret; 311 bool changed; 312 const struct ieee80211_regdomain *r = 313 rtnl_dereference(mvm->hw->wiphy->regd); 314 315 if (!r) 316 return -ENOENT; 317 318 /* save the last source in case we overwrite it below */ 319 used_src = mvm->mcc_src; 320 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 321 /* Notify the firmware we support wifi location updates */ 322 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 323 if (!IS_ERR_OR_NULL(regd)) 324 kfree(regd); 325 } 326 327 /* Now set our last stored MCC and source */ 328 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 329 &changed); 330 if (IS_ERR_OR_NULL(regd)) 331 return -EIO; 332 333 /* update cfg80211 if the regdomain was changed */ 334 if (changed) 335 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd); 336 else 337 ret = 0; 338 339 kfree(regd); 340 return ret; 341 } 342 343 static const u8 he_if_types_ext_capa_sta[] = { 344 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 345 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 346 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF, 347 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 348 }; 349 350 static const struct wiphy_iftype_ext_capab he_iftypes_ext_capa[] = { 351 { 352 .iftype = NL80211_IFTYPE_STATION, 353 .extended_capabilities = he_if_types_ext_capa_sta, 354 .extended_capabilities_mask = he_if_types_ext_capa_sta, 355 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 356 }, 357 }; 358 359 static int 360 iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 361 { 362 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 363 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 364 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 365 return 0; 366 } 367 368 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 369 { 370 struct ieee80211_hw *hw = mvm->hw; 371 int num_mac, ret, i; 372 static const u32 mvm_ciphers[] = { 373 WLAN_CIPHER_SUITE_WEP40, 374 WLAN_CIPHER_SUITE_WEP104, 375 WLAN_CIPHER_SUITE_TKIP, 376 WLAN_CIPHER_SUITE_CCMP, 377 }; 378 #ifdef CONFIG_PM_SLEEP 379 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 380 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 381 #endif 382 383 /* Tell mac80211 our characteristics */ 384 ieee80211_hw_set(hw, SIGNAL_DBM); 385 ieee80211_hw_set(hw, SPECTRUM_MGMT); 386 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 387 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 388 ieee80211_hw_set(hw, SUPPORTS_PS); 389 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 390 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 391 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 392 ieee80211_hw_set(hw, CONNECTION_MONITOR); 393 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 394 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 395 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 396 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 397 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 398 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 399 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 400 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 401 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 402 /* 403 * On older devices, enabling TX A-MSDU occasionally leads to 404 * something getting messed up, the command read from the FIFO 405 * gets out of sync and isn't a TX command, so that we have an 406 * assert EDC. 407 * 408 * It's not clear where the bug is, but since we didn't used to 409 * support A-MSDU until moving the mac80211 iTXQs, just leave it 410 * for older devices. We also don't see this issue on any newer 411 * devices. 412 */ 413 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 414 ieee80211_hw_set(hw, TX_AMSDU); 415 ieee80211_hw_set(hw, TX_FRAG_LIST); 416 417 if (iwl_mvm_has_tlc_offload(mvm)) { 418 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 419 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 420 } 421 422 if (iwl_mvm_has_new_rx_api(mvm)) 423 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 424 425 if (fw_has_capa(&mvm->fw->ucode_capa, 426 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 427 ieee80211_hw_set(hw, AP_LINK_PS); 428 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 429 /* 430 * we absolutely need this for the new TX API since that comes 431 * with many more queues than the current code can deal with 432 * for station powersave 433 */ 434 return -EINVAL; 435 } 436 437 if (mvm->trans->num_rx_queues > 1) 438 ieee80211_hw_set(hw, USES_RSS); 439 440 if (mvm->trans->max_skb_frags) 441 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 442 443 hw->queues = IEEE80211_MAX_QUEUES; 444 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 445 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 446 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 447 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 448 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 449 450 hw->radiotap_timestamp.units_pos = 451 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 452 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 453 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 454 hw->radiotap_timestamp.accuracy = 22; 455 456 if (!iwl_mvm_has_tlc_offload(mvm)) 457 hw->rate_control_algorithm = RS_NAME; 458 459 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 460 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 461 hw->max_tx_fragments = mvm->trans->max_skb_frags; 462 463 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 464 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 465 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 466 hw->wiphy->cipher_suites = mvm->ciphers; 467 468 if (iwl_mvm_has_new_rx_api(mvm)) { 469 mvm->ciphers[hw->wiphy->n_cipher_suites] = 470 WLAN_CIPHER_SUITE_GCMP; 471 hw->wiphy->n_cipher_suites++; 472 mvm->ciphers[hw->wiphy->n_cipher_suites] = 473 WLAN_CIPHER_SUITE_GCMP_256; 474 hw->wiphy->n_cipher_suites++; 475 } 476 477 /* Enable 11w if software crypto is not enabled (as the 478 * firmware will interpret some mgmt packets, so enabling it 479 * with software crypto isn't safe). 480 */ 481 if (!iwlwifi_mod_params.swcrypto) { 482 ieee80211_hw_set(hw, MFP_CAPABLE); 483 mvm->ciphers[hw->wiphy->n_cipher_suites] = 484 WLAN_CIPHER_SUITE_AES_CMAC; 485 hw->wiphy->n_cipher_suites++; 486 if (iwl_mvm_has_new_rx_api(mvm)) { 487 mvm->ciphers[hw->wiphy->n_cipher_suites] = 488 WLAN_CIPHER_SUITE_BIP_GMAC_128; 489 hw->wiphy->n_cipher_suites++; 490 mvm->ciphers[hw->wiphy->n_cipher_suites] = 491 WLAN_CIPHER_SUITE_BIP_GMAC_256; 492 hw->wiphy->n_cipher_suites++; 493 } 494 } 495 496 /* currently FW API supports only one optional cipher scheme */ 497 if (mvm->fw->cs[0].cipher) { 498 const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0]; 499 struct ieee80211_cipher_scheme *cs = &mvm->cs[0]; 500 501 mvm->hw->n_cipher_schemes = 1; 502 503 cs->cipher = le32_to_cpu(fwcs->cipher); 504 cs->iftype = BIT(NL80211_IFTYPE_STATION); 505 cs->hdr_len = fwcs->hdr_len; 506 cs->pn_len = fwcs->pn_len; 507 cs->pn_off = fwcs->pn_off; 508 cs->key_idx_off = fwcs->key_idx_off; 509 cs->key_idx_mask = fwcs->key_idx_mask; 510 cs->key_idx_shift = fwcs->key_idx_shift; 511 cs->mic_len = fwcs->mic_len; 512 513 mvm->hw->cipher_schemes = mvm->cs; 514 mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher; 515 hw->wiphy->n_cipher_suites++; 516 } 517 518 if (fw_has_capa(&mvm->fw->ucode_capa, 519 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 520 wiphy_ext_feature_set(hw->wiphy, 521 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 522 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 523 } 524 525 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 526 hw->wiphy->features |= 527 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 528 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 529 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 530 531 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 532 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 533 hw->chanctx_data_size = sizeof(u16); 534 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 535 536 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 537 BIT(NL80211_IFTYPE_P2P_CLIENT) | 538 BIT(NL80211_IFTYPE_AP) | 539 BIT(NL80211_IFTYPE_P2P_GO) | 540 BIT(NL80211_IFTYPE_P2P_DEVICE) | 541 BIT(NL80211_IFTYPE_ADHOC); 542 543 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 544 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 545 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 546 547 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 548 if (iwl_mvm_is_lar_supported(mvm)) 549 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 550 else 551 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 552 REGULATORY_DISABLE_BEACON_HINTS; 553 554 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 555 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 556 557 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 558 hw->wiphy->n_iface_combinations = 559 ARRAY_SIZE(iwl_mvm_iface_combinations); 560 561 hw->wiphy->max_remain_on_channel_duration = 10000; 562 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 563 564 /* Extract MAC address */ 565 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 566 hw->wiphy->addresses = mvm->addresses; 567 hw->wiphy->n_addresses = 1; 568 569 /* Extract additional MAC addresses if available */ 570 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 571 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 572 573 for (i = 1; i < num_mac; i++) { 574 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 575 ETH_ALEN); 576 mvm->addresses[i].addr[5]++; 577 hw->wiphy->n_addresses++; 578 } 579 580 iwl_mvm_reset_phy_ctxts(mvm); 581 582 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 583 584 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 585 586 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 587 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 588 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 589 590 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 591 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 592 else 593 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 594 595 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 596 hw->wiphy->bands[NL80211_BAND_2GHZ] = 597 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 598 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 599 hw->wiphy->bands[NL80211_BAND_5GHZ] = 600 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 601 602 if (fw_has_capa(&mvm->fw->ucode_capa, 603 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 604 fw_has_api(&mvm->fw->ucode_capa, 605 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 606 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 607 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 608 } 609 610 hw->wiphy->hw_version = mvm->trans->hw_id; 611 612 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 613 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 614 else 615 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 616 617 hw->wiphy->max_sched_scan_reqs = 1; 618 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 619 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; 620 /* we create the 802.11 header and zero length SSID IE. */ 621 hw->wiphy->max_sched_scan_ie_len = 622 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 623 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 624 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 625 626 /* 627 * the firmware uses u8 for num of iterations, but 0xff is saved for 628 * infinite loop, so the maximum number of iterations is actually 254. 629 */ 630 hw->wiphy->max_sched_scan_plan_iterations = 254; 631 632 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 633 NL80211_FEATURE_LOW_PRIORITY_SCAN | 634 NL80211_FEATURE_P2P_GO_OPPPS | 635 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 636 NL80211_FEATURE_DYNAMIC_SMPS | 637 NL80211_FEATURE_STATIC_SMPS | 638 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 639 640 if (fw_has_capa(&mvm->fw->ucode_capa, 641 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 642 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 643 if (fw_has_capa(&mvm->fw->ucode_capa, 644 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 645 hw->wiphy->features |= NL80211_FEATURE_QUIET; 646 647 if (fw_has_capa(&mvm->fw->ucode_capa, 648 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 649 hw->wiphy->features |= 650 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 651 652 if (fw_has_capa(&mvm->fw->ucode_capa, 653 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 654 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 655 656 if (fw_has_api(&mvm->fw->ucode_capa, 657 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 658 wiphy_ext_feature_set(hw->wiphy, 659 NL80211_EXT_FEATURE_SCAN_START_TIME); 660 wiphy_ext_feature_set(hw->wiphy, 661 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 662 wiphy_ext_feature_set(hw->wiphy, 663 NL80211_EXT_FEATURE_SET_SCAN_DWELL); 664 } 665 666 if (iwl_mvm_is_oce_supported(mvm)) { 667 wiphy_ext_feature_set(hw->wiphy, 668 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 669 wiphy_ext_feature_set(hw->wiphy, 670 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 671 wiphy_ext_feature_set(hw->wiphy, 672 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 673 wiphy_ext_feature_set(hw->wiphy, 674 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 675 } 676 677 if (mvm->nvm_data->sku_cap_11ax_enable && 678 !iwlwifi_mod_params.disable_11ax) { 679 hw->wiphy->iftype_ext_capab = he_iftypes_ext_capa; 680 hw->wiphy->num_iftype_ext_capab = 681 ARRAY_SIZE(he_iftypes_ext_capa); 682 683 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 684 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 685 } 686 687 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 688 689 #ifdef CONFIG_PM_SLEEP 690 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 691 mvm->trans->ops->d3_suspend && 692 mvm->trans->ops->d3_resume && 693 device_can_wakeup(mvm->trans->dev)) { 694 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 695 WIPHY_WOWLAN_DISCONNECT | 696 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 697 WIPHY_WOWLAN_RFKILL_RELEASE | 698 WIPHY_WOWLAN_NET_DETECT; 699 if (!iwlwifi_mod_params.swcrypto) 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 = IWL_SCAN_MAX_PROFILES; 708 hw->wiphy->wowlan = &mvm->wowlan; 709 } 710 #endif 711 712 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 713 /* assign default bcast filtering configuration */ 714 mvm->bcast_filters = iwl_mvm_default_bcast_filters; 715 #endif 716 717 ret = iwl_mvm_leds_init(mvm); 718 if (ret) 719 return ret; 720 721 if (fw_has_capa(&mvm->fw->ucode_capa, 722 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 723 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 724 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 725 ieee80211_hw_set(hw, TDLS_WIDER_BW); 726 } 727 728 if (fw_has_capa(&mvm->fw->ucode_capa, 729 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 730 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 731 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 732 } 733 734 hw->netdev_features |= mvm->cfg->features; 735 if (!iwl_mvm_is_csum_supported(mvm)) { 736 hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS | 737 NETIF_F_RXCSUM); 738 /* We may support SW TX CSUM */ 739 if (IWL_MVM_SW_TX_CSUM_OFFLOAD) 740 hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS; 741 } 742 743 if (mvm->cfg->vht_mu_mimo_supported) 744 wiphy_ext_feature_set(hw->wiphy, 745 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 746 747 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 748 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 749 750 ret = ieee80211_register_hw(mvm->hw); 751 if (ret) { 752 iwl_mvm_leds_exit(mvm); 753 } 754 755 return ret; 756 } 757 758 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 759 struct ieee80211_sta *sta) 760 { 761 if (likely(sta)) { 762 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 763 return; 764 } else { 765 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 766 return; 767 } 768 769 ieee80211_free_txskb(mvm->hw, skb); 770 } 771 772 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 773 struct ieee80211_tx_control *control, 774 struct sk_buff *skb) 775 { 776 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 777 struct ieee80211_sta *sta = control->sta; 778 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 779 struct ieee80211_hdr *hdr = (void *)skb->data; 780 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 781 IEEE80211_TX_CTL_TX_OFFCHAN; 782 783 if (iwl_mvm_is_radio_killed(mvm)) { 784 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 785 goto drop; 786 } 787 788 if (offchannel && 789 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 790 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 791 goto drop; 792 793 /* treat non-bufferable MMPDUs on AP interfaces as broadcast */ 794 if ((info->control.vif->type == NL80211_IFTYPE_AP || 795 info->control.vif->type == NL80211_IFTYPE_ADHOC) && 796 ieee80211_is_mgmt(hdr->frame_control) && 797 !ieee80211_is_bufferable_mmpdu(hdr->frame_control)) 798 sta = NULL; 799 800 /* If there is no sta, and it's not offchannel - send through AP */ 801 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 802 !offchannel) { 803 struct iwl_mvm_vif *mvmvif = 804 iwl_mvm_vif_from_mac80211(info->control.vif); 805 u8 ap_sta_id = READ_ONCE(mvmvif->ap_sta_id); 806 807 if (ap_sta_id < IWL_MVM_STATION_COUNT) { 808 /* mac80211 holds rcu read lock */ 809 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 810 if (IS_ERR_OR_NULL(sta)) 811 goto drop; 812 } 813 } 814 815 iwl_mvm_tx_skb(mvm, skb, sta); 816 return; 817 drop: 818 ieee80211_free_txskb(hw, skb); 819 } 820 821 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 822 { 823 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 824 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 825 struct sk_buff *skb = NULL; 826 827 /* 828 * No need for threads to be pending here, they can leave the first 829 * taker all the work. 830 * 831 * mvmtxq->tx_request logic: 832 * 833 * If 0, no one is currently TXing, set to 1 to indicate current thread 834 * will now start TX and other threads should quit. 835 * 836 * If 1, another thread is currently TXing, set to 2 to indicate to 837 * that thread that there was another request. Since that request may 838 * have raced with the check whether the queue is empty, the TXing 839 * thread should check the queue's status one more time before leaving. 840 * This check is done in order to not leave any TX hanging in the queue 841 * until the next TX invocation (which may not even happen). 842 * 843 * If 2, another thread is currently TXing, and it will already double 844 * check the queue, so do nothing. 845 */ 846 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 847 return; 848 849 rcu_read_lock(); 850 do { 851 while (likely(!mvmtxq->stopped && 852 (mvm->trans->system_pm_mode == 853 IWL_PLAT_PM_MODE_DISABLED))) { 854 skb = ieee80211_tx_dequeue(hw, txq); 855 856 if (!skb) { 857 if (txq->sta) 858 IWL_DEBUG_TX(mvm, 859 "TXQ of sta %pM tid %d is now empty\n", 860 txq->sta->addr, 861 txq->tid); 862 break; 863 } 864 865 iwl_mvm_tx_skb(mvm, skb, txq->sta); 866 } 867 } while (atomic_dec_return(&mvmtxq->tx_request)); 868 rcu_read_unlock(); 869 } 870 871 static void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 872 struct ieee80211_txq *txq) 873 { 874 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 875 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 876 877 /* 878 * Please note that racing is handled very carefully here: 879 * mvmtxq->txq_id is updated during allocation, and mvmtxq->list is 880 * deleted afterwards. 881 * This means that if: 882 * mvmtxq->txq_id != INVALID_QUEUE && list_empty(&mvmtxq->list): 883 * queue is allocated and we can TX. 884 * mvmtxq->txq_id != INVALID_QUEUE && !list_empty(&mvmtxq->list): 885 * a race, should defer the frame. 886 * mvmtxq->txq_id == INVALID_QUEUE && list_empty(&mvmtxq->list): 887 * need to allocate the queue and defer the frame. 888 * mvmtxq->txq_id == INVALID_QUEUE && !list_empty(&mvmtxq->list): 889 * queue is already scheduled for allocation, no need to allocate, 890 * should defer the frame. 891 */ 892 893 /* If the queue is allocated TX and return. */ 894 if (!txq->sta || mvmtxq->txq_id != IWL_MVM_INVALID_QUEUE) { 895 /* 896 * Check that list is empty to avoid a race where txq_id is 897 * already updated, but the queue allocation work wasn't 898 * finished 899 */ 900 if (unlikely(txq->sta && !list_empty(&mvmtxq->list))) 901 return; 902 903 iwl_mvm_mac_itxq_xmit(hw, txq); 904 return; 905 } 906 907 /* The list is being deleted only after the queue is fully allocated. */ 908 if (!list_empty(&mvmtxq->list)) 909 return; 910 911 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 912 schedule_work(&mvm->add_stream_wk); 913 } 914 915 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 916 do { \ 917 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 918 break; \ 919 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 920 } while (0) 921 922 static void 923 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 924 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 925 enum ieee80211_ampdu_mlme_action action) 926 { 927 struct iwl_fw_dbg_trigger_tlv *trig; 928 struct iwl_fw_dbg_trigger_ba *ba_trig; 929 930 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 931 FW_DBG_TRIGGER_BA); 932 if (!trig) 933 return; 934 935 ba_trig = (void *)trig->data; 936 937 switch (action) { 938 case IEEE80211_AMPDU_TX_OPERATIONAL: { 939 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 940 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 941 942 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 943 "TX AGG START: MAC %pM tid %d ssn %d\n", 944 sta->addr, tid, tid_data->ssn); 945 break; 946 } 947 case IEEE80211_AMPDU_TX_STOP_CONT: 948 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 949 "TX AGG STOP: MAC %pM tid %d\n", 950 sta->addr, tid); 951 break; 952 case IEEE80211_AMPDU_RX_START: 953 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 954 "RX AGG START: MAC %pM tid %d ssn %d\n", 955 sta->addr, tid, rx_ba_ssn); 956 break; 957 case IEEE80211_AMPDU_RX_STOP: 958 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 959 "RX AGG STOP: MAC %pM tid %d\n", 960 sta->addr, tid); 961 break; 962 default: 963 break; 964 } 965 } 966 967 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 968 struct ieee80211_vif *vif, 969 struct ieee80211_ampdu_params *params) 970 { 971 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 972 int ret; 973 struct ieee80211_sta *sta = params->sta; 974 enum ieee80211_ampdu_mlme_action action = params->action; 975 u16 tid = params->tid; 976 u16 *ssn = ¶ms->ssn; 977 u16 buf_size = params->buf_size; 978 bool amsdu = params->amsdu; 979 u16 timeout = params->timeout; 980 981 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 982 sta->addr, tid, action); 983 984 if (!(mvm->nvm_data->sku_cap_11n_enable)) 985 return -EACCES; 986 987 mutex_lock(&mvm->mutex); 988 989 switch (action) { 990 case IEEE80211_AMPDU_RX_START: 991 if (iwl_mvm_vif_from_mac80211(vif)->ap_sta_id == 992 iwl_mvm_sta_from_mac80211(sta)->sta_id) { 993 struct iwl_mvm_vif *mvmvif; 994 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 995 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 996 997 mdata->opened_rx_ba_sessions = true; 998 mvmvif = iwl_mvm_vif_from_mac80211(vif); 999 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 1000 } 1001 if (!iwl_enable_rx_ampdu()) { 1002 ret = -EINVAL; 1003 break; 1004 } 1005 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 1006 timeout); 1007 break; 1008 case IEEE80211_AMPDU_RX_STOP: 1009 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 1010 timeout); 1011 break; 1012 case IEEE80211_AMPDU_TX_START: 1013 if (!iwl_enable_tx_ampdu()) { 1014 ret = -EINVAL; 1015 break; 1016 } 1017 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1018 break; 1019 case IEEE80211_AMPDU_TX_STOP_CONT: 1020 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1021 break; 1022 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1023 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1024 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1025 break; 1026 case IEEE80211_AMPDU_TX_OPERATIONAL: 1027 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1028 buf_size, amsdu); 1029 break; 1030 default: 1031 WARN_ON_ONCE(1); 1032 ret = -EINVAL; 1033 break; 1034 } 1035 1036 if (!ret) { 1037 u16 rx_ba_ssn = 0; 1038 1039 if (action == IEEE80211_AMPDU_RX_START) 1040 rx_ba_ssn = *ssn; 1041 1042 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1043 rx_ba_ssn, action); 1044 } 1045 mutex_unlock(&mvm->mutex); 1046 1047 return ret; 1048 } 1049 1050 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1051 struct ieee80211_vif *vif) 1052 { 1053 struct iwl_mvm *mvm = data; 1054 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1055 1056 mvmvif->uploaded = false; 1057 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1058 1059 spin_lock_bh(&mvm->time_event_lock); 1060 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1061 spin_unlock_bh(&mvm->time_event_lock); 1062 1063 mvmvif->phy_ctxt = NULL; 1064 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1065 memset(&mvmvif->probe_resp_data, 0, sizeof(mvmvif->probe_resp_data)); 1066 } 1067 1068 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1069 { 1070 iwl_mvm_stop_device(mvm); 1071 1072 mvm->cur_aid = 0; 1073 1074 mvm->scan_status = 0; 1075 mvm->ps_disabled = false; 1076 mvm->rfkill_safe_init_done = false; 1077 1078 /* just in case one was running */ 1079 iwl_mvm_cleanup_roc_te(mvm); 1080 ieee80211_remain_on_channel_expired(mvm->hw); 1081 1082 iwl_mvm_ftm_restart(mvm); 1083 1084 /* 1085 * cleanup all interfaces, even inactive ones, as some might have 1086 * gone down during the HW restart 1087 */ 1088 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1089 1090 mvm->p2p_device_vif = NULL; 1091 1092 iwl_mvm_reset_phy_ctxts(mvm); 1093 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1094 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1095 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1096 1097 ieee80211_wake_queues(mvm->hw); 1098 1099 mvm->vif_count = 0; 1100 mvm->rx_ba_sessions = 0; 1101 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1102 mvm->monitor_on = false; 1103 1104 /* keep statistics ticking */ 1105 iwl_mvm_accu_radio_stats(mvm); 1106 } 1107 1108 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1109 { 1110 int ret; 1111 1112 lockdep_assert_held(&mvm->mutex); 1113 1114 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1115 /* 1116 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1117 * so later code will - from now on - see that we're doing it. 1118 */ 1119 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1120 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1121 /* Clean up some internal and mac80211 state on restart */ 1122 iwl_mvm_restart_cleanup(mvm); 1123 } 1124 ret = iwl_mvm_up(mvm); 1125 1126 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1127 NULL); 1128 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1129 NULL); 1130 1131 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1132 /* Something went wrong - we need to finish some cleanup 1133 * that normally iwl_mvm_mac_restart_complete() below 1134 * would do. 1135 */ 1136 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1137 } 1138 1139 return ret; 1140 } 1141 1142 static int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1143 { 1144 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1145 int ret; 1146 1147 mutex_lock(&mvm->mutex); 1148 ret = __iwl_mvm_mac_start(mvm); 1149 mutex_unlock(&mvm->mutex); 1150 1151 return ret; 1152 } 1153 1154 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1155 { 1156 int ret; 1157 1158 mutex_lock(&mvm->mutex); 1159 1160 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1161 1162 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1163 if (ret) 1164 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1165 ret); 1166 1167 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1168 1169 /* 1170 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1171 * of packets the FW sent out, so we must reconnect. 1172 */ 1173 iwl_mvm_teardown_tdls_peers(mvm); 1174 1175 mutex_unlock(&mvm->mutex); 1176 } 1177 1178 static void 1179 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1180 enum ieee80211_reconfig_type reconfig_type) 1181 { 1182 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1183 1184 switch (reconfig_type) { 1185 case IEEE80211_RECONFIG_TYPE_RESTART: 1186 iwl_mvm_restart_complete(mvm); 1187 break; 1188 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1189 break; 1190 } 1191 } 1192 1193 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1194 { 1195 lockdep_assert_held(&mvm->mutex); 1196 1197 /* firmware counters are obviously reset now, but we shouldn't 1198 * partially track so also clear the fw_reset_accu counters. 1199 */ 1200 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1201 1202 /* async_handlers_wk is now blocked */ 1203 1204 /* 1205 * The work item could be running or queued if the 1206 * ROC time event stops just as we get here. 1207 */ 1208 flush_work(&mvm->roc_done_wk); 1209 1210 iwl_mvm_stop_device(mvm); 1211 1212 iwl_mvm_async_handlers_purge(mvm); 1213 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1214 1215 /* the fw is stopped, the aux sta is dead: clean up driver state */ 1216 iwl_mvm_del_aux_sta(mvm); 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 iwl_fw_free_dump_desc(&mvm->fwrt); 1266 1267 mutex_lock(&mvm->mutex); 1268 __iwl_mvm_mac_stop(mvm); 1269 mutex_unlock(&mvm->mutex); 1270 1271 /* 1272 * The worker might have been waiting for the mutex, let it run and 1273 * discover that its list is now empty. 1274 */ 1275 cancel_work_sync(&mvm->async_handlers_wk); 1276 } 1277 1278 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1279 { 1280 u16 i; 1281 1282 lockdep_assert_held(&mvm->mutex); 1283 1284 for (i = 0; i < NUM_PHY_CTX; i++) 1285 if (!mvm->phy_ctxts[i].ref) 1286 return &mvm->phy_ctxts[i]; 1287 1288 IWL_ERR(mvm, "No available PHY context\n"); 1289 return NULL; 1290 } 1291 1292 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1293 s16 tx_power) 1294 { 1295 int len; 1296 union { 1297 struct iwl_dev_tx_power_cmd v5; 1298 struct iwl_dev_tx_power_cmd_v4 v4; 1299 } cmd = { 1300 .v5.v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1301 .v5.v3.mac_context_id = 1302 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1303 .v5.v3.pwr_restriction = cpu_to_le16(8 * tx_power), 1304 }; 1305 1306 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1307 cmd.v5.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1308 1309 if (fw_has_api(&mvm->fw->ucode_capa, 1310 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1311 len = sizeof(cmd.v5); 1312 else if (fw_has_capa(&mvm->fw->ucode_capa, 1313 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1314 len = sizeof(cmd.v4); 1315 else 1316 len = sizeof(cmd.v4.v3); 1317 1318 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); 1319 } 1320 1321 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1322 struct ieee80211_vif *vif) 1323 { 1324 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1325 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1326 int ret; 1327 1328 mutex_lock(&mvm->mutex); 1329 1330 if (mvmvif->csa_failed) { 1331 mvmvif->csa_failed = false; 1332 ret = -EIO; 1333 goto out_unlock; 1334 } 1335 1336 if (vif->type == NL80211_IFTYPE_STATION) { 1337 struct iwl_mvm_sta *mvmsta; 1338 1339 mvmvif->csa_bcn_pending = false; 1340 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 1341 mvmvif->ap_sta_id); 1342 1343 if (WARN_ON(!mvmsta)) { 1344 ret = -EIO; 1345 goto out_unlock; 1346 } 1347 1348 if (!fw_has_capa(&mvm->fw->ucode_capa, 1349 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1350 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1351 1352 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1353 1354 if (!fw_has_capa(&mvm->fw->ucode_capa, 1355 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1356 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1357 if (ret) 1358 goto out_unlock; 1359 1360 iwl_mvm_stop_session_protection(mvm, vif); 1361 } 1362 } 1363 1364 mvmvif->ps_disabled = false; 1365 1366 ret = iwl_mvm_power_update_ps(mvm); 1367 1368 out_unlock: 1369 mutex_unlock(&mvm->mutex); 1370 1371 return ret; 1372 } 1373 1374 static void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1375 struct ieee80211_vif *vif) 1376 { 1377 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1378 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1379 struct iwl_chan_switch_te_cmd cmd = { 1380 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1381 mvmvif->color)), 1382 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1383 }; 1384 1385 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1386 1387 mutex_lock(&mvm->mutex); 1388 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1389 WIDE_ID(MAC_CONF_GROUP, 1390 CHANNEL_SWITCH_TIME_EVENT_CMD), 1391 0, sizeof(cmd), &cmd)); 1392 mutex_unlock(&mvm->mutex); 1393 1394 WARN_ON(iwl_mvm_post_channel_switch(hw, vif)); 1395 } 1396 1397 static void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1398 { 1399 struct iwl_mvm *mvm; 1400 struct iwl_mvm_vif *mvmvif; 1401 struct ieee80211_vif *vif; 1402 1403 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1404 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1405 mvm = mvmvif->mvm; 1406 1407 iwl_mvm_abort_channel_switch(mvm->hw, vif); 1408 ieee80211_chswitch_done(vif, false); 1409 } 1410 1411 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1412 struct ieee80211_vif *vif) 1413 { 1414 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1415 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1416 int ret; 1417 1418 mvmvif->mvm = mvm; 1419 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1420 1421 /* 1422 * Not much to do here. The stack will not allow interface 1423 * types or combinations that we didn't advertise, so we 1424 * don't really have to check the types. 1425 */ 1426 1427 mutex_lock(&mvm->mutex); 1428 1429 /* make sure that beacon statistics don't go backwards with FW reset */ 1430 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1431 mvmvif->beacon_stats.accu_num_beacons += 1432 mvmvif->beacon_stats.num_beacons; 1433 1434 /* Allocate resources for the MAC context, and add it to the fw */ 1435 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1436 if (ret) 1437 goto out_unlock; 1438 1439 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1440 1441 /* Counting number of interfaces is needed for legacy PM */ 1442 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1443 mvm->vif_count++; 1444 1445 /* 1446 * The AP binding flow can be done only after the beacon 1447 * template is configured (which happens only in the mac80211 1448 * start_ap() flow), and adding the broadcast station can happen 1449 * only after the binding. 1450 * In addition, since modifying the MAC before adding a bcast 1451 * station is not allowed by the FW, delay the adding of MAC context to 1452 * the point where we can also add the bcast station. 1453 * In short: there's not much we can do at this point, other than 1454 * allocating resources :) 1455 */ 1456 if (vif->type == NL80211_IFTYPE_AP || 1457 vif->type == NL80211_IFTYPE_ADHOC) { 1458 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1459 if (ret) { 1460 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1461 goto out_release; 1462 } 1463 1464 /* 1465 * Only queue for this station is the mcast queue, 1466 * which shouldn't be in TFD mask anyway 1467 */ 1468 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta, 1469 0, vif->type, 1470 IWL_STA_MULTICAST); 1471 if (ret) 1472 goto out_release; 1473 1474 iwl_mvm_vif_dbgfs_register(mvm, vif); 1475 goto out_unlock; 1476 } 1477 1478 mvmvif->features |= hw->netdev_features; 1479 1480 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1481 if (ret) 1482 goto out_release; 1483 1484 ret = iwl_mvm_power_update_mac(mvm); 1485 if (ret) 1486 goto out_remove_mac; 1487 1488 /* beacon filtering */ 1489 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1490 if (ret) 1491 goto out_remove_mac; 1492 1493 if (!mvm->bf_allowed_vif && 1494 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1495 mvm->bf_allowed_vif = mvmvif; 1496 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1497 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1498 } 1499 1500 /* 1501 * P2P_DEVICE interface does not have a channel context assigned to it, 1502 * so a dedicated PHY context is allocated to it and the corresponding 1503 * MAC context is bound to it at this stage. 1504 */ 1505 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1506 1507 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1508 if (!mvmvif->phy_ctxt) { 1509 ret = -ENOSPC; 1510 goto out_free_bf; 1511 } 1512 1513 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 1514 ret = iwl_mvm_binding_add_vif(mvm, vif); 1515 if (ret) 1516 goto out_unref_phy; 1517 1518 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif); 1519 if (ret) 1520 goto out_unbind; 1521 1522 /* Save a pointer to p2p device vif, so it can later be used to 1523 * update the p2p device MAC when a GO is started/stopped */ 1524 mvm->p2p_device_vif = vif; 1525 } 1526 1527 iwl_mvm_tcm_add_vif(mvm, vif); 1528 INIT_DELAYED_WORK(&mvmvif->csa_work, 1529 iwl_mvm_channel_switch_disconnect_wk); 1530 1531 if (vif->type == NL80211_IFTYPE_MONITOR) 1532 mvm->monitor_on = true; 1533 1534 iwl_mvm_vif_dbgfs_register(mvm, vif); 1535 goto out_unlock; 1536 1537 out_unbind: 1538 iwl_mvm_binding_remove_vif(mvm, vif); 1539 out_unref_phy: 1540 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1541 out_free_bf: 1542 if (mvm->bf_allowed_vif == mvmvif) { 1543 mvm->bf_allowed_vif = NULL; 1544 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1545 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1546 } 1547 out_remove_mac: 1548 mvmvif->phy_ctxt = NULL; 1549 iwl_mvm_mac_ctxt_remove(mvm, vif); 1550 out_release: 1551 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1552 mvm->vif_count--; 1553 out_unlock: 1554 mutex_unlock(&mvm->mutex); 1555 1556 return ret; 1557 } 1558 1559 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1560 struct ieee80211_vif *vif) 1561 { 1562 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1563 /* 1564 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1565 * We assume here that all the packets sent to the OFFCHANNEL 1566 * queue are sent in ROC session. 1567 */ 1568 flush_work(&mvm->roc_done_wk); 1569 } 1570 } 1571 1572 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1573 struct ieee80211_vif *vif) 1574 { 1575 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1576 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1577 struct iwl_probe_resp_data *probe_data; 1578 1579 iwl_mvm_prepare_mac_removal(mvm, vif); 1580 1581 if (!(vif->type == NL80211_IFTYPE_AP || 1582 vif->type == NL80211_IFTYPE_ADHOC)) 1583 iwl_mvm_tcm_rm_vif(mvm, vif); 1584 1585 mutex_lock(&mvm->mutex); 1586 1587 probe_data = rcu_dereference_protected(mvmvif->probe_resp_data, 1588 lockdep_is_held(&mvm->mutex)); 1589 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1590 if (probe_data) 1591 kfree_rcu(probe_data, rcu_head); 1592 1593 if (mvm->bf_allowed_vif == mvmvif) { 1594 mvm->bf_allowed_vif = NULL; 1595 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1596 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1597 } 1598 1599 if (vif->bss_conf.ftm_responder) 1600 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1601 1602 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1603 1604 /* 1605 * For AP/GO interface, the tear down of the resources allocated to the 1606 * interface is be handled as part of the stop_ap flow. 1607 */ 1608 if (vif->type == NL80211_IFTYPE_AP || 1609 vif->type == NL80211_IFTYPE_ADHOC) { 1610 #ifdef CONFIG_NL80211_TESTMODE 1611 if (vif == mvm->noa_vif) { 1612 mvm->noa_vif = NULL; 1613 mvm->noa_duration = 0; 1614 } 1615 #endif 1616 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta); 1617 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1618 goto out_release; 1619 } 1620 1621 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1622 mvm->p2p_device_vif = NULL; 1623 iwl_mvm_rm_p2p_bcast_sta(mvm, vif); 1624 iwl_mvm_binding_remove_vif(mvm, vif); 1625 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1626 mvmvif->phy_ctxt = NULL; 1627 } 1628 1629 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) 1630 mvm->vif_count--; 1631 1632 iwl_mvm_power_update_mac(mvm); 1633 iwl_mvm_mac_ctxt_remove(mvm, vif); 1634 1635 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1636 1637 if (vif->type == NL80211_IFTYPE_MONITOR) 1638 mvm->monitor_on = false; 1639 1640 out_release: 1641 mutex_unlock(&mvm->mutex); 1642 } 1643 1644 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) 1645 { 1646 return 0; 1647 } 1648 1649 struct iwl_mvm_mc_iter_data { 1650 struct iwl_mvm *mvm; 1651 int port_id; 1652 }; 1653 1654 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1655 struct ieee80211_vif *vif) 1656 { 1657 struct iwl_mvm_mc_iter_data *data = _data; 1658 struct iwl_mvm *mvm = data->mvm; 1659 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1660 struct iwl_host_cmd hcmd = { 1661 .id = MCAST_FILTER_CMD, 1662 .flags = CMD_ASYNC, 1663 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1664 }; 1665 int ret, len; 1666 1667 /* if we don't have free ports, mcast frames will be dropped */ 1668 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1669 return; 1670 1671 if (vif->type != NL80211_IFTYPE_STATION || 1672 !vif->bss_conf.assoc) 1673 return; 1674 1675 cmd->port_id = data->port_id++; 1676 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1677 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1678 1679 hcmd.len[0] = len; 1680 hcmd.data[0] = cmd; 1681 1682 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1683 if (ret) 1684 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1685 } 1686 1687 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1688 { 1689 struct iwl_mvm_mc_iter_data iter_data = { 1690 .mvm = mvm, 1691 }; 1692 1693 lockdep_assert_held(&mvm->mutex); 1694 1695 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1696 return; 1697 1698 ieee80211_iterate_active_interfaces_atomic( 1699 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1700 iwl_mvm_mc_iface_iterator, &iter_data); 1701 } 1702 1703 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1704 struct netdev_hw_addr_list *mc_list) 1705 { 1706 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1707 struct iwl_mcast_filter_cmd *cmd; 1708 struct netdev_hw_addr *addr; 1709 int addr_count; 1710 bool pass_all; 1711 int len; 1712 1713 addr_count = netdev_hw_addr_list_count(mc_list); 1714 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1715 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1716 if (pass_all) 1717 addr_count = 0; 1718 1719 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1720 cmd = kzalloc(len, GFP_ATOMIC); 1721 if (!cmd) 1722 return 0; 1723 1724 if (pass_all) { 1725 cmd->pass_all = 1; 1726 return (u64)(unsigned long)cmd; 1727 } 1728 1729 netdev_hw_addr_list_for_each(addr, mc_list) { 1730 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1731 cmd->count, addr->addr); 1732 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1733 addr->addr, ETH_ALEN); 1734 cmd->count++; 1735 } 1736 1737 return (u64)(unsigned long)cmd; 1738 } 1739 1740 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1741 unsigned int changed_flags, 1742 unsigned int *total_flags, 1743 u64 multicast) 1744 { 1745 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1746 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1747 1748 mutex_lock(&mvm->mutex); 1749 1750 /* replace previous configuration */ 1751 kfree(mvm->mcast_filter_cmd); 1752 mvm->mcast_filter_cmd = cmd; 1753 1754 if (!cmd) 1755 goto out; 1756 1757 if (changed_flags & FIF_ALLMULTI) 1758 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1759 1760 if (cmd->pass_all) 1761 cmd->count = 0; 1762 1763 iwl_mvm_recalc_multicast(mvm); 1764 out: 1765 mutex_unlock(&mvm->mutex); 1766 *total_flags = 0; 1767 } 1768 1769 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1770 struct ieee80211_vif *vif, 1771 unsigned int filter_flags, 1772 unsigned int changed_flags) 1773 { 1774 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1775 1776 /* We support only filter for probe requests */ 1777 if (!(changed_flags & FIF_PROBE_REQ)) 1778 return; 1779 1780 /* Supported only for p2p client interfaces */ 1781 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || 1782 !vif->p2p) 1783 return; 1784 1785 mutex_lock(&mvm->mutex); 1786 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1787 mutex_unlock(&mvm->mutex); 1788 } 1789 1790 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1791 struct iwl_bcast_iter_data { 1792 struct iwl_mvm *mvm; 1793 struct iwl_bcast_filter_cmd *cmd; 1794 u8 current_filter; 1795 }; 1796 1797 static void 1798 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, 1799 const struct iwl_fw_bcast_filter *in_filter, 1800 struct iwl_fw_bcast_filter *out_filter) 1801 { 1802 struct iwl_fw_bcast_filter_attr *attr; 1803 int i; 1804 1805 memcpy(out_filter, in_filter, sizeof(*out_filter)); 1806 1807 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { 1808 attr = &out_filter->attrs[i]; 1809 1810 if (!attr->mask) 1811 break; 1812 1813 switch (attr->reserved1) { 1814 case cpu_to_le16(BC_FILTER_MAGIC_IP): 1815 if (vif->bss_conf.arp_addr_cnt != 1) { 1816 attr->mask = 0; 1817 continue; 1818 } 1819 1820 attr->val = vif->bss_conf.arp_addr_list[0]; 1821 break; 1822 case cpu_to_le16(BC_FILTER_MAGIC_MAC): 1823 attr->val = *(__be32 *)&vif->addr[2]; 1824 break; 1825 default: 1826 break; 1827 } 1828 attr->reserved1 = 0; 1829 out_filter->num_attrs++; 1830 } 1831 } 1832 1833 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, 1834 struct ieee80211_vif *vif) 1835 { 1836 struct iwl_bcast_iter_data *data = _data; 1837 struct iwl_mvm *mvm = data->mvm; 1838 struct iwl_bcast_filter_cmd *cmd = data->cmd; 1839 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1840 struct iwl_fw_bcast_mac *bcast_mac; 1841 int i; 1842 1843 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) 1844 return; 1845 1846 bcast_mac = &cmd->macs[mvmvif->id]; 1847 1848 /* 1849 * enable filtering only for associated stations, but not for P2P 1850 * Clients 1851 */ 1852 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || 1853 !vif->bss_conf.assoc) 1854 return; 1855 1856 bcast_mac->default_discard = 1; 1857 1858 /* copy all configured filters */ 1859 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { 1860 /* 1861 * Make sure we don't exceed our filters limit. 1862 * if there is still a valid filter to be configured, 1863 * be on the safe side and just allow bcast for this mac. 1864 */ 1865 if (WARN_ON_ONCE(data->current_filter >= 1866 ARRAY_SIZE(cmd->filters))) { 1867 bcast_mac->default_discard = 0; 1868 bcast_mac->attached_filters = 0; 1869 break; 1870 } 1871 1872 iwl_mvm_set_bcast_filter(vif, 1873 &mvm->bcast_filters[i], 1874 &cmd->filters[data->current_filter]); 1875 1876 /* skip current filter if it contains no attributes */ 1877 if (!cmd->filters[data->current_filter].num_attrs) 1878 continue; 1879 1880 /* attach the filter to current mac */ 1881 bcast_mac->attached_filters |= 1882 cpu_to_le16(BIT(data->current_filter)); 1883 1884 data->current_filter++; 1885 } 1886 } 1887 1888 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, 1889 struct iwl_bcast_filter_cmd *cmd) 1890 { 1891 struct iwl_bcast_iter_data iter_data = { 1892 .mvm = mvm, 1893 .cmd = cmd, 1894 }; 1895 1896 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) 1897 return false; 1898 1899 memset(cmd, 0, sizeof(*cmd)); 1900 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); 1901 cmd->max_macs = ARRAY_SIZE(cmd->macs); 1902 1903 #ifdef CONFIG_IWLWIFI_DEBUGFS 1904 /* use debugfs filters/macs if override is configured */ 1905 if (mvm->dbgfs_bcast_filtering.override) { 1906 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, 1907 sizeof(cmd->filters)); 1908 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, 1909 sizeof(cmd->macs)); 1910 return true; 1911 } 1912 #endif 1913 1914 /* if no filters are configured, do nothing */ 1915 if (!mvm->bcast_filters) 1916 return false; 1917 1918 /* configure and attach these filters for each associated sta vif */ 1919 ieee80211_iterate_active_interfaces( 1920 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1921 iwl_mvm_bcast_filter_iterator, &iter_data); 1922 1923 return true; 1924 } 1925 1926 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1927 { 1928 struct iwl_bcast_filter_cmd cmd; 1929 1930 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) 1931 return 0; 1932 1933 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1934 return 0; 1935 1936 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1937 sizeof(cmd), &cmd); 1938 } 1939 #else 1940 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1941 { 1942 return 0; 1943 } 1944 #endif 1945 1946 static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, 1947 struct ieee80211_vif *vif) 1948 { 1949 struct iwl_mu_group_mgmt_cmd cmd = {}; 1950 1951 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1952 WLAN_MEMBERSHIP_LEN); 1953 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1954 WLAN_USER_POSITION_LEN); 1955 1956 return iwl_mvm_send_cmd_pdu(mvm, 1957 WIDE_ID(DATA_PATH_GROUP, 1958 UPDATE_MU_GROUPS_CMD), 1959 0, sizeof(cmd), &cmd); 1960 } 1961 1962 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1963 struct ieee80211_vif *vif) 1964 { 1965 if (vif->mu_mimo_owner) { 1966 struct iwl_mu_group_mgmt_notif *notif = _data; 1967 1968 /* 1969 * MU-MIMO Group Id action frame is little endian. We treat 1970 * the data received from firmware as if it came from the 1971 * action frame, so no conversion is needed. 1972 */ 1973 ieee80211_update_mu_groups(vif, 1974 (u8 *)¬if->membership_status, 1975 (u8 *)¬if->user_position); 1976 } 1977 } 1978 1979 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1980 struct iwl_rx_cmd_buffer *rxb) 1981 { 1982 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1983 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1984 1985 ieee80211_iterate_active_interfaces_atomic( 1986 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1987 iwl_mvm_mu_mimo_iface_iterator, notif); 1988 } 1989 1990 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1991 { 1992 u8 byte_num = ppe_pos_bit / 8; 1993 u8 bit_num = ppe_pos_bit % 8; 1994 u8 residue_bits; 1995 u8 res; 1996 1997 if (bit_num <= 5) 1998 return (ppe[byte_num] >> bit_num) & 1999 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2000 2001 /* 2002 * If bit_num > 5, we have to combine bits with next byte. 2003 * Calculate how many bits we need to take from current byte (called 2004 * here "residue_bits"), and add them to bits from next byte. 2005 */ 2006 2007 residue_bits = 8 - bit_num; 2008 2009 res = (ppe[byte_num + 1] & 2010 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2011 residue_bits; 2012 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2013 2014 return res; 2015 } 2016 2017 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2018 struct ieee80211_vif *vif, u8 sta_id) 2019 { 2020 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2021 struct iwl_he_sta_context_cmd sta_ctxt_cmd = { 2022 .sta_id = sta_id, 2023 .tid_limit = IWL_MAX_TID_COUNT, 2024 .bss_color = vif->bss_conf.bss_color, 2025 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2026 .frame_time_rts_th = 2027 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2028 }; 2029 int size = fw_has_api(&mvm->fw->ucode_capa, 2030 IWL_UCODE_TLV_API_MBSSID_HE) ? 2031 sizeof(sta_ctxt_cmd) : 2032 sizeof(struct iwl_he_sta_context_cmd_v1); 2033 struct ieee80211_sta *sta; 2034 u32 flags; 2035 int i; 2036 2037 rcu_read_lock(); 2038 2039 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2040 if (IS_ERR(sta)) { 2041 rcu_read_unlock(); 2042 WARN(1, "Can't find STA to configure HE\n"); 2043 return; 2044 } 2045 2046 if (!sta->he_cap.has_he) { 2047 rcu_read_unlock(); 2048 return; 2049 } 2050 2051 flags = 0; 2052 2053 /* Block 26-tone RU OFDMA transmissions */ 2054 if (mvmvif->he_ru_2mhz_block) 2055 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2056 2057 /* HTC flags */ 2058 if (sta->he_cap.he_cap_elem.mac_cap_info[0] & 2059 IEEE80211_HE_MAC_CAP0_HTC_HE) 2060 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2061 if ((sta->he_cap.he_cap_elem.mac_cap_info[1] & 2062 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2063 (sta->he_cap.he_cap_elem.mac_cap_info[2] & 2064 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2065 u8 link_adap = 2066 ((sta->he_cap.he_cap_elem.mac_cap_info[2] & 2067 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2068 (sta->he_cap.he_cap_elem.mac_cap_info[1] & 2069 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2070 2071 if (link_adap == 2) 2072 sta_ctxt_cmd.htc_flags |= 2073 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2074 else if (link_adap == 3) 2075 sta_ctxt_cmd.htc_flags |= 2076 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2077 } 2078 if (sta->he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2079 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2080 if (sta->he_cap.he_cap_elem.mac_cap_info[3] & 2081 IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2082 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2083 if (sta->he_cap.he_cap_elem.mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2084 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2085 2086 /* 2087 * Initialize the PPE thresholds to "None" (7), as described in Table 2088 * 9-262ac of 80211.ax/D3.0. 2089 */ 2090 memset(&sta_ctxt_cmd.pkt_ext, 7, sizeof(sta_ctxt_cmd.pkt_ext)); 2091 2092 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2093 if (sta->he_cap.he_cap_elem.phy_cap_info[6] & 2094 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2095 u8 nss = (sta->he_cap.ppe_thres[0] & 2096 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2097 u8 ru_index_bitmap = 2098 (sta->he_cap.ppe_thres[0] & 2099 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK) >> 2100 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS; 2101 u8 *ppe = &sta->he_cap.ppe_thres[0]; 2102 u8 ppe_pos_bit = 7; /* Starting after PPE header */ 2103 2104 /* 2105 * FW currently supports only nss == MAX_HE_SUPP_NSS 2106 * 2107 * If nss > MAX: we can ignore values we don't support 2108 * If nss < MAX: we can set zeros in other streams 2109 */ 2110 if (nss > MAX_HE_SUPP_NSS) { 2111 IWL_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2112 MAX_HE_SUPP_NSS); 2113 nss = MAX_HE_SUPP_NSS; 2114 } 2115 2116 for (i = 0; i < nss; i++) { 2117 u8 ru_index_tmp = ru_index_bitmap << 1; 2118 u8 bw; 2119 2120 for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX; bw++) { 2121 ru_index_tmp >>= 1; 2122 if (!(ru_index_tmp & 1)) 2123 continue; 2124 2125 sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][1] = 2126 iwl_mvm_he_get_ppe_val(ppe, 2127 ppe_pos_bit); 2128 ppe_pos_bit += 2129 IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2130 sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][0] = 2131 iwl_mvm_he_get_ppe_val(ppe, 2132 ppe_pos_bit); 2133 ppe_pos_bit += 2134 IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2135 } 2136 } 2137 2138 flags |= STA_CTXT_HE_PACKET_EXT; 2139 } else if ((sta->he_cap.he_cap_elem.phy_cap_info[9] & 2140 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) != 2141 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_RESERVED) { 2142 int low_th = -1; 2143 int high_th = -1; 2144 2145 /* Take the PPE thresholds from the nominal padding info */ 2146 switch (sta->he_cap.he_cap_elem.phy_cap_info[9] & 2147 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) { 2148 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US: 2149 low_th = IWL_HE_PKT_EXT_NONE; 2150 high_th = IWL_HE_PKT_EXT_NONE; 2151 break; 2152 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US: 2153 low_th = IWL_HE_PKT_EXT_BPSK; 2154 high_th = IWL_HE_PKT_EXT_NONE; 2155 break; 2156 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US: 2157 low_th = IWL_HE_PKT_EXT_NONE; 2158 high_th = IWL_HE_PKT_EXT_BPSK; 2159 break; 2160 } 2161 2162 /* Set the PPE thresholds accordingly */ 2163 if (low_th >= 0 && high_th >= 0) { 2164 struct iwl_he_pkt_ext *pkt_ext = 2165 (struct iwl_he_pkt_ext *)&sta_ctxt_cmd.pkt_ext; 2166 2167 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2168 u8 bw; 2169 2170 for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX; 2171 bw++) { 2172 pkt_ext->pkt_ext_qam_th[i][bw][0] = 2173 low_th; 2174 pkt_ext->pkt_ext_qam_th[i][bw][1] = 2175 high_th; 2176 } 2177 } 2178 2179 flags |= STA_CTXT_HE_PACKET_EXT; 2180 } 2181 } 2182 rcu_read_unlock(); 2183 2184 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2185 flags |= STA_CTXT_HE_MU_EDCA_CW; 2186 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2187 struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2188 &mvmvif->queue_params[i].mu_edca_param_rec; 2189 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2190 2191 if (!mvmvif->queue_params[i].mu_edca) { 2192 flags &= ~STA_CTXT_HE_MU_EDCA_CW; 2193 break; 2194 } 2195 2196 sta_ctxt_cmd.trig_based_txf[ac].cwmin = 2197 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2198 sta_ctxt_cmd.trig_based_txf[ac].cwmax = 2199 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2200 sta_ctxt_cmd.trig_based_txf[ac].aifsn = 2201 cpu_to_le16(mu_edca->aifsn); 2202 sta_ctxt_cmd.trig_based_txf[ac].mu_time = 2203 cpu_to_le16(mu_edca->mu_edca_timer); 2204 } 2205 2206 if (vif->bss_conf.multi_sta_back_32bit) 2207 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2208 2209 if (vif->bss_conf.ack_enabled) 2210 flags |= STA_CTXT_HE_ACK_ENABLED; 2211 2212 if (vif->bss_conf.uora_exists) { 2213 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2214 2215 sta_ctxt_cmd.rand_alloc_ecwmin = 2216 vif->bss_conf.uora_ocw_range & 0x7; 2217 sta_ctxt_cmd.rand_alloc_ecwmax = 2218 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2219 } 2220 2221 if (vif->bss_conf.nontransmitted) { 2222 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2223 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2224 vif->bss_conf.transmitter_bssid); 2225 sta_ctxt_cmd.max_bssid_indicator = 2226 vif->bss_conf.bssid_indicator; 2227 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2228 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2229 sta_ctxt_cmd.profile_periodicity = 2230 vif->bss_conf.profile_periodicity; 2231 } 2232 2233 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2234 2235 if (iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(STA_HE_CTXT_CMD, 2236 DATA_PATH_GROUP, 0), 2237 0, size, &sta_ctxt_cmd)) 2238 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2239 } 2240 2241 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2242 struct ieee80211_vif *vif, 2243 struct ieee80211_bss_conf *bss_conf, 2244 u32 changes) 2245 { 2246 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2247 int ret; 2248 2249 /* 2250 * Re-calculate the tsf id, as the master-slave relations depend on the 2251 * beacon interval, which was not known when the station interface was 2252 * added. 2253 */ 2254 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) { 2255 if (vif->bss_conf.he_support && 2256 !iwlwifi_mod_params.disable_11ax) 2257 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2258 2259 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2260 } 2261 2262 /* Update MU EDCA params */ 2263 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2264 bss_conf->assoc && vif->bss_conf.he_support && 2265 !iwlwifi_mod_params.disable_11ax) 2266 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2267 2268 /* 2269 * If we're not associated yet, take the (new) BSSID before associating 2270 * so the firmware knows. If we're already associated, then use the old 2271 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2272 * branch for disassociation below. 2273 */ 2274 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2275 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2276 2277 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); 2278 if (ret) 2279 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2280 2281 /* after sending it once, adopt mac80211 data */ 2282 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2283 mvmvif->associated = bss_conf->assoc; 2284 2285 if (changes & BSS_CHANGED_ASSOC) { 2286 if (bss_conf->assoc) { 2287 /* clear statistics to get clean beacon counter */ 2288 iwl_mvm_request_statistics(mvm, true); 2289 memset(&mvmvif->beacon_stats, 0, 2290 sizeof(mvmvif->beacon_stats)); 2291 2292 /* add quota for this interface */ 2293 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2294 if (ret) { 2295 IWL_ERR(mvm, "failed to update quotas\n"); 2296 return; 2297 } 2298 2299 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2300 &mvm->status) && 2301 !fw_has_capa(&mvm->fw->ucode_capa, 2302 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2303 /* 2304 * If we're restarting then the firmware will 2305 * obviously have lost synchronisation with 2306 * the AP. It will attempt to synchronise by 2307 * itself, but we can make it more reliable by 2308 * scheduling a session protection time event. 2309 * 2310 * The firmware needs to receive a beacon to 2311 * catch up with synchronisation, use 110% of 2312 * the beacon interval. 2313 * 2314 * Set a large maximum delay to allow for more 2315 * than a single interface. 2316 * 2317 * For new firmware versions, rely on the 2318 * firmware. This is relevant for DCM scenarios 2319 * only anyway. 2320 */ 2321 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2322 iwl_mvm_protect_session(mvm, vif, dur, dur, 2323 5 * dur, false); 2324 } 2325 2326 iwl_mvm_sf_update(mvm, vif, false); 2327 iwl_mvm_power_vif_assoc(mvm, vif); 2328 if (vif->p2p) { 2329 iwl_mvm_update_smps(mvm, vif, 2330 IWL_MVM_SMPS_REQ_PROT, 2331 IEEE80211_SMPS_DYNAMIC); 2332 } 2333 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 2334 /* 2335 * If update fails - SF might be running in associated 2336 * mode while disassociated - which is forbidden. 2337 */ 2338 ret = iwl_mvm_sf_update(mvm, vif, false); 2339 WARN_ONCE(ret && 2340 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2341 &mvm->status), 2342 "Failed to update SF upon disassociation\n"); 2343 2344 /* 2345 * If we get an assert during the connection (after the 2346 * station has been added, but before the vif is set 2347 * to associated), mac80211 will re-add the station and 2348 * then configure the vif. Since the vif is not 2349 * associated, we would remove the station here and 2350 * this would fail the recovery. 2351 */ 2352 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2353 &mvm->status)) { 2354 /* 2355 * Remove AP station now that 2356 * the MAC is unassoc 2357 */ 2358 ret = iwl_mvm_rm_sta_id(mvm, vif, 2359 mvmvif->ap_sta_id); 2360 if (ret) 2361 IWL_ERR(mvm, 2362 "failed to remove AP station\n"); 2363 2364 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 2365 } 2366 2367 /* remove quota for this interface */ 2368 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2369 if (ret) 2370 IWL_ERR(mvm, "failed to update quotas\n"); 2371 2372 /* this will take the cleared BSSID from bss_conf */ 2373 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2374 if (ret) 2375 IWL_ERR(mvm, 2376 "failed to update MAC %pM (clear after unassoc)\n", 2377 vif->addr); 2378 } 2379 2380 /* 2381 * The firmware tracks the MU-MIMO group on its own. 2382 * However, on HW restart we should restore this data. 2383 */ 2384 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2385 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) { 2386 ret = iwl_mvm_update_mu_groups(mvm, vif); 2387 if (ret) 2388 IWL_ERR(mvm, 2389 "failed to update VHT MU_MIMO groups\n"); 2390 } 2391 2392 iwl_mvm_recalc_multicast(mvm); 2393 iwl_mvm_configure_bcast_filter(mvm); 2394 2395 /* reset rssi values */ 2396 mvmvif->bf_data.ave_beacon_signal = 0; 2397 2398 iwl_mvm_bt_coex_vif_change(mvm); 2399 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2400 IEEE80211_SMPS_AUTOMATIC); 2401 if (fw_has_capa(&mvm->fw->ucode_capa, 2402 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2403 iwl_mvm_config_scan(mvm); 2404 } 2405 2406 if (changes & BSS_CHANGED_BEACON_INFO) { 2407 /* 2408 * We received a beacon from the associated AP so 2409 * remove the session protection. 2410 * A firmware with the new API will remove it automatically. 2411 */ 2412 if (!fw_has_capa(&mvm->fw->ucode_capa, 2413 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2414 iwl_mvm_stop_session_protection(mvm, vif); 2415 2416 iwl_mvm_sf_update(mvm, vif, false); 2417 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2418 } 2419 2420 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2421 /* 2422 * Send power command on every beacon change, 2423 * because we may have not enabled beacon abort yet. 2424 */ 2425 BSS_CHANGED_BEACON_INFO)) { 2426 ret = iwl_mvm_power_update_mac(mvm); 2427 if (ret) 2428 IWL_ERR(mvm, "failed to update power mode\n"); 2429 } 2430 2431 if (changes & BSS_CHANGED_TXPOWER) { 2432 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 2433 bss_conf->txpower); 2434 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2435 } 2436 2437 if (changes & BSS_CHANGED_CQM) { 2438 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2439 /* reset cqm events tracking */ 2440 mvmvif->bf_data.last_cqm_event = 0; 2441 if (mvmvif->bf_data.bf_enabled) { 2442 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2443 if (ret) 2444 IWL_ERR(mvm, 2445 "failed to update CQM thresholds\n"); 2446 } 2447 } 2448 2449 if (changes & BSS_CHANGED_ARP_FILTER) { 2450 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); 2451 iwl_mvm_configure_bcast_filter(mvm); 2452 } 2453 } 2454 2455 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2456 struct ieee80211_vif *vif) 2457 { 2458 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2459 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2460 int ret, i; 2461 2462 mutex_lock(&mvm->mutex); 2463 2464 /* Send the beacon template */ 2465 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); 2466 if (ret) 2467 goto out_unlock; 2468 2469 /* 2470 * Re-calculate the tsf id, as the master-slave relations depend on the 2471 * beacon interval, which was not known when the AP interface was added. 2472 */ 2473 if (vif->type == NL80211_IFTYPE_AP) 2474 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2475 2476 mvmvif->ap_assoc_sta_count = 0; 2477 2478 /* Add the mac context */ 2479 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2480 if (ret) 2481 goto out_unlock; 2482 2483 /* Perform the binding */ 2484 ret = iwl_mvm_binding_add_vif(mvm, vif); 2485 if (ret) 2486 goto out_remove; 2487 2488 /* 2489 * This is not very nice, but the simplest: 2490 * For older FWs adding the mcast sta before the bcast station may 2491 * cause assert 0x2b00. 2492 * This is fixed in later FW so make the order of removal depend on 2493 * the TLV 2494 */ 2495 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2496 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2497 if (ret) 2498 goto out_unbind; 2499 /* 2500 * Send the bcast station. At this stage the TBTT and DTIM time 2501 * events are added and applied to the scheduler 2502 */ 2503 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2504 if (ret) { 2505 iwl_mvm_rm_mcast_sta(mvm, vif); 2506 goto out_unbind; 2507 } 2508 } else { 2509 /* 2510 * Send the bcast station. At this stage the TBTT and DTIM time 2511 * events are added and applied to the scheduler 2512 */ 2513 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2514 if (ret) 2515 goto out_unbind; 2516 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2517 if (ret) { 2518 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2519 goto out_unbind; 2520 } 2521 } 2522 2523 /* must be set before quota calculations */ 2524 mvmvif->ap_ibss_active = true; 2525 2526 /* send all the early keys to the device now */ 2527 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2528 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2529 2530 if (!key) 2531 continue; 2532 2533 mvmvif->ap_early_keys[i] = NULL; 2534 2535 ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2536 if (ret) 2537 goto out_quota_failed; 2538 } 2539 2540 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2541 iwl_mvm_vif_set_low_latency(mvmvif, true, 2542 LOW_LATENCY_VIF_TYPE); 2543 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2544 } 2545 2546 /* power updated needs to be done before quotas */ 2547 iwl_mvm_power_update_mac(mvm); 2548 2549 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2550 if (ret) 2551 goto out_quota_failed; 2552 2553 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2554 if (vif->p2p && mvm->p2p_device_vif) 2555 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2556 2557 iwl_mvm_bt_coex_vif_change(mvm); 2558 2559 /* we don't support TDLS during DCM */ 2560 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2561 iwl_mvm_teardown_tdls_peers(mvm); 2562 2563 iwl_mvm_ftm_restart_responder(mvm, vif); 2564 2565 goto out_unlock; 2566 2567 out_quota_failed: 2568 iwl_mvm_power_update_mac(mvm); 2569 mvmvif->ap_ibss_active = false; 2570 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2571 iwl_mvm_rm_mcast_sta(mvm, vif); 2572 out_unbind: 2573 iwl_mvm_binding_remove_vif(mvm, vif); 2574 out_remove: 2575 iwl_mvm_mac_ctxt_remove(mvm, vif); 2576 out_unlock: 2577 mutex_unlock(&mvm->mutex); 2578 return ret; 2579 } 2580 2581 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2582 struct ieee80211_vif *vif) 2583 { 2584 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2585 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2586 2587 iwl_mvm_prepare_mac_removal(mvm, vif); 2588 2589 mutex_lock(&mvm->mutex); 2590 2591 /* Handle AP stop while in CSA */ 2592 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2593 iwl_mvm_remove_time_event(mvm, mvmvif, 2594 &mvmvif->time_event_data); 2595 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2596 mvmvif->csa_countdown = false; 2597 } 2598 2599 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2600 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2601 mvm->csa_tx_block_bcn_timeout = 0; 2602 } 2603 2604 mvmvif->ap_ibss_active = false; 2605 mvm->ap_last_beacon_gp2 = 0; 2606 2607 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2608 iwl_mvm_vif_set_low_latency(mvmvif, false, 2609 LOW_LATENCY_VIF_TYPE); 2610 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2611 } 2612 2613 iwl_mvm_bt_coex_vif_change(mvm); 2614 2615 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2616 if (vif->p2p && mvm->p2p_device_vif) 2617 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2618 2619 iwl_mvm_update_quotas(mvm, false, NULL); 2620 2621 /* 2622 * This is not very nice, but the simplest: 2623 * For older FWs removing the mcast sta before the bcast station may 2624 * cause assert 0x2b00. 2625 * This is fixed in later FW (which will stop beaconing when removing 2626 * bcast station). 2627 * So make the order of removal depend on the TLV 2628 */ 2629 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2630 iwl_mvm_rm_mcast_sta(mvm, vif); 2631 iwl_mvm_send_rm_bcast_sta(mvm, vif); 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_binding_remove_vif(mvm, vif); 2635 2636 iwl_mvm_power_update_mac(mvm); 2637 2638 iwl_mvm_mac_ctxt_remove(mvm, vif); 2639 2640 mutex_unlock(&mvm->mutex); 2641 } 2642 2643 static void 2644 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 2645 struct ieee80211_vif *vif, 2646 struct ieee80211_bss_conf *bss_conf, 2647 u32 changes) 2648 { 2649 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2650 2651 /* Changes will be applied when the AP/IBSS is started */ 2652 if (!mvmvif->ap_ibss_active) 2653 return; 2654 2655 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 2656 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 2657 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 2658 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2659 2660 /* Need to send a new beacon template to the FW */ 2661 if (changes & BSS_CHANGED_BEACON && 2662 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) 2663 IWL_WARN(mvm, "Failed updating beacon data\n"); 2664 2665 if (changes & BSS_CHANGED_TXPOWER) { 2666 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 2667 bss_conf->txpower); 2668 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2669 } 2670 2671 if (changes & BSS_CHANGED_FTM_RESPONDER) { 2672 int ret = iwl_mvm_ftm_start_responder(mvm, vif); 2673 2674 if (ret) 2675 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 2676 ret); 2677 } 2678 2679 } 2680 2681 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 2682 struct ieee80211_vif *vif, 2683 struct ieee80211_bss_conf *bss_conf, 2684 u32 changes) 2685 { 2686 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2687 2688 mutex_lock(&mvm->mutex); 2689 2690 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) 2691 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 2692 2693 switch (vif->type) { 2694 case NL80211_IFTYPE_STATION: 2695 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 2696 break; 2697 case NL80211_IFTYPE_AP: 2698 case NL80211_IFTYPE_ADHOC: 2699 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 2700 break; 2701 case NL80211_IFTYPE_MONITOR: 2702 if (changes & BSS_CHANGED_MU_GROUPS) 2703 iwl_mvm_update_mu_groups(mvm, vif); 2704 break; 2705 default: 2706 /* shouldn't happen */ 2707 WARN_ON_ONCE(1); 2708 } 2709 2710 mutex_unlock(&mvm->mutex); 2711 } 2712 2713 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, 2714 struct ieee80211_vif *vif, 2715 struct ieee80211_scan_request *hw_req) 2716 { 2717 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2718 int ret; 2719 2720 if (hw_req->req.n_channels == 0 || 2721 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 2722 return -EINVAL; 2723 2724 mutex_lock(&mvm->mutex); 2725 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 2726 mutex_unlock(&mvm->mutex); 2727 2728 return ret; 2729 } 2730 2731 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 2732 struct ieee80211_vif *vif) 2733 { 2734 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2735 2736 mutex_lock(&mvm->mutex); 2737 2738 /* Due to a race condition, it's possible that mac80211 asks 2739 * us to stop a hw_scan when it's already stopped. This can 2740 * happen, for instance, if we stopped the scan ourselves, 2741 * called ieee80211_scan_completed() and the userspace called 2742 * cancel scan scan before ieee80211_scan_work() could run. 2743 * To handle that, simply return if the scan is not running. 2744 */ 2745 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 2746 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 2747 2748 mutex_unlock(&mvm->mutex); 2749 } 2750 2751 static void 2752 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 2753 struct ieee80211_sta *sta, u16 tids, 2754 int num_frames, 2755 enum ieee80211_frame_release_type reason, 2756 bool more_data) 2757 { 2758 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2759 2760 /* Called when we need to transmit (a) frame(s) from mac80211 */ 2761 2762 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2763 tids, more_data, false); 2764 } 2765 2766 static void 2767 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 2768 struct ieee80211_sta *sta, u16 tids, 2769 int num_frames, 2770 enum ieee80211_frame_release_type reason, 2771 bool more_data) 2772 { 2773 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2774 2775 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 2776 2777 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2778 tids, more_data, true); 2779 } 2780 2781 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2782 enum sta_notify_cmd cmd, 2783 struct ieee80211_sta *sta) 2784 { 2785 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2786 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2787 unsigned long txqs = 0, tids = 0; 2788 int tid; 2789 2790 /* 2791 * If we have TVQM then we get too high queue numbers - luckily 2792 * we really shouldn't get here with that because such hardware 2793 * should have firmware supporting buffer station offload. 2794 */ 2795 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 2796 return; 2797 2798 spin_lock_bh(&mvmsta->lock); 2799 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 2800 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2801 2802 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 2803 continue; 2804 2805 __set_bit(tid_data->txq_id, &txqs); 2806 2807 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 2808 continue; 2809 2810 __set_bit(tid, &tids); 2811 } 2812 2813 switch (cmd) { 2814 case STA_NOTIFY_SLEEP: 2815 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 2816 ieee80211_sta_set_buffered(sta, tid, true); 2817 2818 if (txqs) 2819 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 2820 /* 2821 * The fw updates the STA to be asleep. Tx packets on the Tx 2822 * queues to this station will not be transmitted. The fw will 2823 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 2824 */ 2825 break; 2826 case STA_NOTIFY_AWAKE: 2827 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA)) 2828 break; 2829 2830 if (txqs) 2831 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 2832 iwl_mvm_sta_modify_ps_wake(mvm, sta); 2833 break; 2834 default: 2835 break; 2836 } 2837 spin_unlock_bh(&mvmsta->lock); 2838 } 2839 2840 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2841 struct ieee80211_vif *vif, 2842 enum sta_notify_cmd cmd, 2843 struct ieee80211_sta *sta) 2844 { 2845 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 2846 } 2847 2848 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 2849 { 2850 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2851 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 2852 struct ieee80211_sta *sta; 2853 struct iwl_mvm_sta *mvmsta; 2854 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 2855 2856 if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))) 2857 return; 2858 2859 rcu_read_lock(); 2860 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 2861 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 2862 rcu_read_unlock(); 2863 return; 2864 } 2865 2866 mvmsta = iwl_mvm_sta_from_mac80211(sta); 2867 2868 if (!mvmsta->vif || 2869 mvmsta->vif->type != NL80211_IFTYPE_AP) { 2870 rcu_read_unlock(); 2871 return; 2872 } 2873 2874 if (mvmsta->sleeping != sleeping) { 2875 mvmsta->sleeping = sleeping; 2876 __iwl_mvm_mac_sta_notify(mvm->hw, 2877 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 2878 sta); 2879 ieee80211_sta_ps_transition(sta, sleeping); 2880 } 2881 2882 if (sleeping) { 2883 switch (notif->type) { 2884 case IWL_MVM_PM_EVENT_AWAKE: 2885 case IWL_MVM_PM_EVENT_ASLEEP: 2886 break; 2887 case IWL_MVM_PM_EVENT_UAPSD: 2888 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 2889 break; 2890 case IWL_MVM_PM_EVENT_PS_POLL: 2891 ieee80211_sta_pspoll(sta); 2892 break; 2893 default: 2894 break; 2895 } 2896 } 2897 2898 rcu_read_unlock(); 2899 } 2900 2901 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 2902 struct ieee80211_vif *vif, 2903 struct ieee80211_sta *sta) 2904 { 2905 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2906 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2907 2908 /* 2909 * This is called before mac80211 does RCU synchronisation, 2910 * so here we already invalidate our internal RCU-protected 2911 * station pointer. The rest of the code will thus no longer 2912 * be able to find the station this way, and we don't rely 2913 * on further RCU synchronisation after the sta_state() 2914 * callback deleted the station. 2915 */ 2916 mutex_lock(&mvm->mutex); 2917 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) 2918 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], 2919 ERR_PTR(-ENOENT)); 2920 2921 mutex_unlock(&mvm->mutex); 2922 } 2923 2924 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2925 const u8 *bssid) 2926 { 2927 int i; 2928 2929 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 2930 struct iwl_mvm_tcm_mac *mdata; 2931 2932 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 2933 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 2934 mdata->opened_rx_ba_sessions = false; 2935 } 2936 2937 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 2938 return; 2939 2940 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 2941 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2942 return; 2943 } 2944 2945 if (!vif->p2p && 2946 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 2947 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2948 return; 2949 } 2950 2951 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 2952 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 2953 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2954 return; 2955 } 2956 } 2957 2958 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 2959 } 2960 2961 static void 2962 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 2963 struct ieee80211_vif *vif, u8 *peer_addr, 2964 enum nl80211_tdls_operation action) 2965 { 2966 struct iwl_fw_dbg_trigger_tlv *trig; 2967 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 2968 2969 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 2970 FW_DBG_TRIGGER_TDLS); 2971 if (!trig) 2972 return; 2973 2974 tdls_trig = (void *)trig->data; 2975 2976 if (!(tdls_trig->action_bitmap & BIT(action))) 2977 return; 2978 2979 if (tdls_trig->peer_mode && 2980 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 2981 return; 2982 2983 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 2984 "TDLS event occurred, peer %pM, action %d", 2985 peer_addr, action); 2986 } 2987 2988 struct iwl_mvm_he_obss_narrow_bw_ru_data { 2989 bool tolerated; 2990 }; 2991 2992 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 2993 struct cfg80211_bss *bss, 2994 void *_data) 2995 { 2996 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 2997 const struct element *elem; 2998 2999 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, bss->ies->data, 3000 bss->ies->len); 3001 3002 if (!elem || elem->datalen < 10 || 3003 !(elem->data[10] & 3004 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3005 data->tolerated = false; 3006 } 3007 } 3008 3009 static void iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3010 struct ieee80211_vif *vif) 3011 { 3012 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3013 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3014 .tolerated = true, 3015 }; 3016 3017 if (!(vif->bss_conf.chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3018 mvmvif->he_ru_2mhz_block = false; 3019 return; 3020 } 3021 3022 cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chandef, 3023 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3024 &iter_data); 3025 3026 /* 3027 * If there is at least one AP on radar channel that cannot 3028 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3029 */ 3030 mvmvif->he_ru_2mhz_block = !iter_data.tolerated; 3031 } 3032 3033 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3034 struct ieee80211_vif *vif, 3035 struct ieee80211_sta *sta, 3036 enum ieee80211_sta_state old_state, 3037 enum ieee80211_sta_state new_state) 3038 { 3039 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3040 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3041 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3042 int ret; 3043 3044 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3045 sta->addr, old_state, new_state); 3046 3047 /* this would be a mac80211 bug ... but don't crash */ 3048 if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) 3049 return -EINVAL; 3050 3051 /* 3052 * If we are in a STA removal flow and in DQA mode: 3053 * 3054 * This is after the sync_rcu part, so the queues have already been 3055 * flushed. No more TXs on their way in mac80211's path, and no more in 3056 * the queues. 3057 * Also, we won't be getting any new TX frames for this station. 3058 * What we might have are deferred TX frames that need to be taken care 3059 * of. 3060 * 3061 * Drop any still-queued deferred-frame before removing the STA, and 3062 * make sure the worker is no longer handling frames for this STA. 3063 */ 3064 if (old_state == IEEE80211_STA_NONE && 3065 new_state == IEEE80211_STA_NOTEXIST) { 3066 flush_work(&mvm->add_stream_wk); 3067 3068 /* 3069 * No need to make sure deferred TX indication is off since the 3070 * worker will already remove it if it was on 3071 */ 3072 } 3073 3074 mutex_lock(&mvm->mutex); 3075 /* track whether or not the station is associated */ 3076 mvm_sta->sta_state = new_state; 3077 3078 if (old_state == IEEE80211_STA_NOTEXIST && 3079 new_state == IEEE80211_STA_NONE) { 3080 /* 3081 * Firmware bug - it'll crash if the beacon interval is less 3082 * than 16. We can't avoid connecting at all, so refuse the 3083 * station state change, this will cause mac80211 to abandon 3084 * attempts to connect to this AP, and eventually wpa_s will 3085 * blacklist the AP... 3086 */ 3087 if (vif->type == NL80211_IFTYPE_STATION && 3088 vif->bss_conf.beacon_int < 16) { 3089 IWL_ERR(mvm, 3090 "AP %pM beacon interval is %d, refusing due to firmware bug!\n", 3091 sta->addr, vif->bss_conf.beacon_int); 3092 ret = -EINVAL; 3093 goto out_unlock; 3094 } 3095 3096 if (sta->tdls && 3097 (vif->p2p || 3098 iwl_mvm_tdls_sta_count(mvm, NULL) == 3099 IWL_MVM_TDLS_STA_COUNT || 3100 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3101 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3102 ret = -EBUSY; 3103 goto out_unlock; 3104 } 3105 3106 ret = iwl_mvm_add_sta(mvm, vif, sta); 3107 if (sta->tdls && ret == 0) { 3108 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3109 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3110 NL80211_TDLS_SETUP); 3111 } 3112 3113 sta->max_rc_amsdu_len = 1; 3114 } else if (old_state == IEEE80211_STA_NONE && 3115 new_state == IEEE80211_STA_AUTH) { 3116 /* 3117 * EBS may be disabled due to previous failures reported by FW. 3118 * Reset EBS status here assuming environment has been changed. 3119 */ 3120 mvm->last_ebs_successful = true; 3121 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3122 ret = 0; 3123 } else if (old_state == IEEE80211_STA_AUTH && 3124 new_state == IEEE80211_STA_ASSOC) { 3125 if (vif->type == NL80211_IFTYPE_AP) { 3126 vif->bss_conf.he_support = sta->he_cap.has_he; 3127 mvmvif->ap_assoc_sta_count++; 3128 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3129 if (vif->bss_conf.he_support && 3130 !iwlwifi_mod_params.disable_11ax) 3131 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->sta_id); 3132 } else if (vif->type == NL80211_IFTYPE_STATION) { 3133 vif->bss_conf.he_support = sta->he_cap.has_he; 3134 3135 mvmvif->he_ru_2mhz_block = false; 3136 if (sta->he_cap.has_he) 3137 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif); 3138 3139 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3140 } 3141 3142 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3143 false); 3144 ret = iwl_mvm_update_sta(mvm, vif, sta); 3145 } else if (old_state == IEEE80211_STA_ASSOC && 3146 new_state == IEEE80211_STA_AUTHORIZED) { 3147 ret = 0; 3148 3149 /* we don't support TDLS during DCM */ 3150 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3151 iwl_mvm_teardown_tdls_peers(mvm); 3152 3153 if (sta->tdls) 3154 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3155 NL80211_TDLS_ENABLE_LINK); 3156 3157 /* enable beacon filtering */ 3158 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3159 3160 /* 3161 * Now that the station is authorized, i.e., keys were already 3162 * installed, need to indicate to the FW that 3163 * multicast data frames can be forwarded to the driver 3164 */ 3165 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3166 3167 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3168 true); 3169 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3170 new_state == IEEE80211_STA_ASSOC) { 3171 /* Multicast data frames are no longer allowed */ 3172 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3173 3174 /* disable beacon filtering */ 3175 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3176 WARN_ON(ret && 3177 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3178 &mvm->status)); 3179 ret = 0; 3180 } else if (old_state == IEEE80211_STA_ASSOC && 3181 new_state == IEEE80211_STA_AUTH) { 3182 if (vif->type == NL80211_IFTYPE_AP) { 3183 mvmvif->ap_assoc_sta_count--; 3184 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3185 } 3186 ret = 0; 3187 } else if (old_state == IEEE80211_STA_AUTH && 3188 new_state == IEEE80211_STA_NONE) { 3189 ret = 0; 3190 } else if (old_state == IEEE80211_STA_NONE && 3191 new_state == IEEE80211_STA_NOTEXIST) { 3192 ret = iwl_mvm_rm_sta(mvm, vif, sta); 3193 if (sta->tdls) { 3194 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3195 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3196 NL80211_TDLS_DISABLE_LINK); 3197 } 3198 3199 if (unlikely(ret && 3200 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3201 &mvm->status))) 3202 ret = 0; 3203 } else { 3204 ret = -EIO; 3205 } 3206 out_unlock: 3207 mutex_unlock(&mvm->mutex); 3208 3209 if (sta->tdls && ret == 0) { 3210 if (old_state == IEEE80211_STA_NOTEXIST && 3211 new_state == IEEE80211_STA_NONE) 3212 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3213 else if (old_state == IEEE80211_STA_NONE && 3214 new_state == IEEE80211_STA_NOTEXIST) 3215 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3216 } 3217 3218 return ret; 3219 } 3220 3221 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3222 { 3223 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3224 3225 mvm->rts_threshold = value; 3226 3227 return 0; 3228 } 3229 3230 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, 3231 struct ieee80211_vif *vif, 3232 struct ieee80211_sta *sta, u32 changed) 3233 { 3234 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3235 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3236 3237 if (changed & (IEEE80211_RC_BW_CHANGED | 3238 IEEE80211_RC_SUPP_RATES_CHANGED | 3239 IEEE80211_RC_NSS_CHANGED)) 3240 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3241 true); 3242 3243 if (vif->type == NL80211_IFTYPE_STATION && 3244 changed & IEEE80211_RC_NSS_CHANGED) 3245 iwl_mvm_sf_update(mvm, vif, false); 3246 } 3247 3248 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 3249 struct ieee80211_vif *vif, u16 ac, 3250 const struct ieee80211_tx_queue_params *params) 3251 { 3252 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3253 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3254 3255 mvmvif->queue_params[ac] = *params; 3256 3257 /* 3258 * No need to update right away, we'll get BSS_CHANGED_QOS 3259 * The exception is P2P_DEVICE interface which needs immediate update. 3260 */ 3261 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 3262 int ret; 3263 3264 mutex_lock(&mvm->mutex); 3265 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3266 mutex_unlock(&mvm->mutex); 3267 return ret; 3268 } 3269 return 0; 3270 } 3271 3272 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 3273 struct ieee80211_vif *vif, 3274 u16 req_duration) 3275 { 3276 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3277 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 3278 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 3279 3280 if (req_duration > duration) 3281 duration = req_duration; 3282 3283 mutex_lock(&mvm->mutex); 3284 /* Try really hard to protect the session and hear a beacon 3285 * The new session protection command allows us to protect the 3286 * session for a much longer time since the firmware will internally 3287 * create two events: a 300TU one with a very high priority that 3288 * won't be fragmented which should be enough for 99% of the cases, 3289 * and another one (which we configure here to be 900TU long) which 3290 * will have a slightly lower priority, but more importantly, can be 3291 * fragmented so that it'll allow other activities to run. 3292 */ 3293 if (fw_has_capa(&mvm->fw->ucode_capa, 3294 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 3295 iwl_mvm_schedule_session_protection(mvm, vif, 900, 3296 min_duration); 3297 else 3298 iwl_mvm_protect_session(mvm, vif, duration, 3299 min_duration, 500, false); 3300 mutex_unlock(&mvm->mutex); 3301 } 3302 3303 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 3304 struct ieee80211_vif *vif, 3305 struct cfg80211_sched_scan_request *req, 3306 struct ieee80211_scan_ies *ies) 3307 { 3308 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3309 3310 int ret; 3311 3312 mutex_lock(&mvm->mutex); 3313 3314 if (!vif->bss_conf.idle) { 3315 ret = -EBUSY; 3316 goto out; 3317 } 3318 3319 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 3320 3321 out: 3322 mutex_unlock(&mvm->mutex); 3323 return ret; 3324 } 3325 3326 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 3327 struct ieee80211_vif *vif) 3328 { 3329 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3330 int ret; 3331 3332 mutex_lock(&mvm->mutex); 3333 3334 /* Due to a race condition, it's possible that mac80211 asks 3335 * us to stop a sched_scan when it's already stopped. This 3336 * can happen, for instance, if we stopped the scan ourselves, 3337 * called ieee80211_sched_scan_stopped() and the userspace called 3338 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 3339 * could run. To handle this, simply return if the scan is 3340 * not running. 3341 */ 3342 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 3343 mutex_unlock(&mvm->mutex); 3344 return 0; 3345 } 3346 3347 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 3348 mutex_unlock(&mvm->mutex); 3349 iwl_mvm_wait_for_async_handlers(mvm); 3350 3351 return ret; 3352 } 3353 3354 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3355 enum set_key_cmd cmd, 3356 struct ieee80211_vif *vif, 3357 struct ieee80211_sta *sta, 3358 struct ieee80211_key_conf *key) 3359 { 3360 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3361 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3362 struct iwl_mvm_sta *mvmsta; 3363 struct iwl_mvm_key_pn *ptk_pn; 3364 int keyidx = key->keyidx; 3365 int ret, i; 3366 u8 key_offset; 3367 3368 if (iwlwifi_mod_params.swcrypto) { 3369 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); 3370 return -EOPNOTSUPP; 3371 } 3372 3373 switch (key->cipher) { 3374 case WLAN_CIPHER_SUITE_TKIP: 3375 if (!mvm->trans->trans_cfg->gen2) { 3376 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 3377 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3378 } else if (vif->type == NL80211_IFTYPE_STATION) { 3379 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 3380 } else { 3381 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 3382 return -EOPNOTSUPP; 3383 } 3384 break; 3385 case WLAN_CIPHER_SUITE_CCMP: 3386 case WLAN_CIPHER_SUITE_GCMP: 3387 case WLAN_CIPHER_SUITE_GCMP_256: 3388 if (!iwl_mvm_has_new_tx_api(mvm)) 3389 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3390 break; 3391 case WLAN_CIPHER_SUITE_AES_CMAC: 3392 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3393 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3394 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 3395 break; 3396 case WLAN_CIPHER_SUITE_WEP40: 3397 case WLAN_CIPHER_SUITE_WEP104: 3398 if (vif->type == NL80211_IFTYPE_STATION) 3399 break; 3400 if (iwl_mvm_has_new_tx_api(mvm)) 3401 return -EOPNOTSUPP; 3402 /* support HW crypto on TX */ 3403 return 0; 3404 default: 3405 /* currently FW supports only one optional cipher scheme */ 3406 if (hw->n_cipher_schemes && 3407 hw->cipher_schemes->cipher == key->cipher) 3408 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3409 else 3410 return -EOPNOTSUPP; 3411 } 3412 3413 switch (cmd) { 3414 case SET_KEY: 3415 if ((vif->type == NL80211_IFTYPE_ADHOC || 3416 vif->type == NL80211_IFTYPE_AP) && !sta) { 3417 /* 3418 * GTK on AP interface is a TX-only key, return 0; 3419 * on IBSS they're per-station and because we're lazy 3420 * we don't support them for RX, so do the same. 3421 * CMAC/GMAC in AP/IBSS modes must be done in software. 3422 */ 3423 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3424 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3425 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 3426 ret = -EOPNOTSUPP; 3427 else 3428 ret = 0; 3429 3430 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 3431 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 3432 !iwl_mvm_has_new_tx_api(mvm)) { 3433 key->hw_key_idx = STA_KEY_IDX_INVALID; 3434 break; 3435 } 3436 3437 if (!mvmvif->ap_ibss_active) { 3438 for (i = 0; 3439 i < ARRAY_SIZE(mvmvif->ap_early_keys); 3440 i++) { 3441 if (!mvmvif->ap_early_keys[i]) { 3442 mvmvif->ap_early_keys[i] = key; 3443 break; 3444 } 3445 } 3446 3447 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 3448 ret = -ENOSPC; 3449 3450 break; 3451 } 3452 } 3453 3454 /* During FW restart, in order to restore the state as it was, 3455 * don't try to reprogram keys we previously failed for. 3456 */ 3457 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3458 key->hw_key_idx == STA_KEY_IDX_INVALID) { 3459 IWL_DEBUG_MAC80211(mvm, 3460 "skip invalid idx key programming during restart\n"); 3461 ret = 0; 3462 break; 3463 } 3464 3465 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3466 sta && iwl_mvm_has_new_rx_api(mvm) && 3467 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3468 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3469 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3470 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3471 struct ieee80211_key_seq seq; 3472 int tid, q; 3473 3474 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3475 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 3476 ptk_pn = kzalloc(struct_size(ptk_pn, q, 3477 mvm->trans->num_rx_queues), 3478 GFP_KERNEL); 3479 if (!ptk_pn) { 3480 ret = -ENOMEM; 3481 break; 3482 } 3483 3484 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 3485 ieee80211_get_key_rx_seq(key, tid, &seq); 3486 for (q = 0; q < mvm->trans->num_rx_queues; q++) 3487 memcpy(ptk_pn->q[q].pn[tid], 3488 seq.ccmp.pn, 3489 IEEE80211_CCMP_PN_LEN); 3490 } 3491 3492 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 3493 } 3494 3495 /* in HW restart reuse the index, otherwise request a new one */ 3496 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3497 key_offset = key->hw_key_idx; 3498 else 3499 key_offset = STA_KEY_IDX_INVALID; 3500 3501 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); 3502 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 3503 if (ret) { 3504 IWL_WARN(mvm, "set key failed\n"); 3505 key->hw_key_idx = STA_KEY_IDX_INVALID; 3506 /* 3507 * can't add key for RX, but we don't need it 3508 * in the device for TX so still return 0, 3509 * unless we have new TX API where we cannot 3510 * put key material into the TX_CMD 3511 */ 3512 if (iwl_mvm_has_new_tx_api(mvm)) 3513 ret = -EOPNOTSUPP; 3514 else 3515 ret = 0; 3516 } 3517 3518 break; 3519 case DISABLE_KEY: 3520 ret = -ENOENT; 3521 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 3522 if (mvmvif->ap_early_keys[i] == key) { 3523 mvmvif->ap_early_keys[i] = NULL; 3524 ret = 0; 3525 } 3526 } 3527 3528 /* found in pending list - don't do anything else */ 3529 if (ret == 0) 3530 break; 3531 3532 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 3533 ret = 0; 3534 break; 3535 } 3536 3537 if (sta && iwl_mvm_has_new_rx_api(mvm) && 3538 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3539 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3540 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3541 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3542 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3543 ptk_pn = rcu_dereference_protected( 3544 mvmsta->ptk_pn[keyidx], 3545 lockdep_is_held(&mvm->mutex)); 3546 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 3547 if (ptk_pn) 3548 kfree_rcu(ptk_pn, rcu_head); 3549 } 3550 3551 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 3552 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 3553 break; 3554 default: 3555 ret = -EINVAL; 3556 } 3557 3558 return ret; 3559 } 3560 3561 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3562 enum set_key_cmd cmd, 3563 struct ieee80211_vif *vif, 3564 struct ieee80211_sta *sta, 3565 struct ieee80211_key_conf *key) 3566 { 3567 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3568 int ret; 3569 3570 mutex_lock(&mvm->mutex); 3571 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 3572 mutex_unlock(&mvm->mutex); 3573 3574 return ret; 3575 } 3576 3577 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 3578 struct ieee80211_vif *vif, 3579 struct ieee80211_key_conf *keyconf, 3580 struct ieee80211_sta *sta, 3581 u32 iv32, u16 *phase1key) 3582 { 3583 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3584 3585 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 3586 return; 3587 3588 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 3589 } 3590 3591 3592 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 3593 struct iwl_rx_packet *pkt, void *data) 3594 { 3595 struct iwl_mvm *mvm = 3596 container_of(notif_wait, struct iwl_mvm, notif_wait); 3597 struct iwl_hs20_roc_res *resp; 3598 int resp_len = iwl_rx_packet_payload_len(pkt); 3599 struct iwl_mvm_time_event_data *te_data = data; 3600 3601 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 3602 return true; 3603 3604 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 3605 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 3606 return true; 3607 } 3608 3609 resp = (void *)pkt->data; 3610 3611 IWL_DEBUG_TE(mvm, 3612 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 3613 resp->status, resp->event_unique_id); 3614 3615 te_data->uid = le32_to_cpu(resp->event_unique_id); 3616 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 3617 te_data->uid); 3618 3619 spin_lock_bh(&mvm->time_event_lock); 3620 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 3621 spin_unlock_bh(&mvm->time_event_lock); 3622 3623 return true; 3624 } 3625 3626 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 3627 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 3628 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 3629 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 3630 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 3631 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 3632 struct ieee80211_channel *channel, 3633 struct ieee80211_vif *vif, 3634 int duration) 3635 { 3636 int res; 3637 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3638 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 3639 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 3640 struct iwl_notification_wait wait_time_event; 3641 u32 dtim_interval = vif->bss_conf.dtim_period * 3642 vif->bss_conf.beacon_int; 3643 u32 req_dur, delay; 3644 struct iwl_hs20_roc_req aux_roc_req = { 3645 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 3646 .id_and_color = 3647 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 3648 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 3649 }; 3650 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 3651 &aux_roc_req.channel_info); 3652 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 3653 3654 /* Set the channel info data */ 3655 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 3656 iwl_mvm_phy_band_from_nl80211(channel->band), 3657 PHY_VHT_CHANNEL_MODE20, 3658 0); 3659 3660 /* Set the time and duration */ 3661 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 3662 3663 delay = AUX_ROC_MIN_DELAY; 3664 req_dur = MSEC_TO_TU(duration); 3665 3666 /* 3667 * If we are associated we want the delay time to be at least one 3668 * dtim interval so that the FW can wait until after the DTIM and 3669 * then start the time event, this will potentially allow us to 3670 * remain off-channel for the max duration. 3671 * Since we want to use almost a whole dtim interval we would also 3672 * like the delay to be for 2-3 dtim intervals, in case there are 3673 * other time events with higher priority. 3674 */ 3675 if (vif->bss_conf.assoc) { 3676 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 3677 /* We cannot remain off-channel longer than the DTIM interval */ 3678 if (dtim_interval <= req_dur) { 3679 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 3680 if (req_dur <= AUX_ROC_MIN_DURATION) 3681 req_dur = dtim_interval - 3682 AUX_ROC_MIN_SAFETY_BUFFER; 3683 } 3684 } 3685 3686 tail->duration = cpu_to_le32(req_dur); 3687 tail->apply_time_max_delay = cpu_to_le32(delay); 3688 3689 IWL_DEBUG_TE(mvm, 3690 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 3691 channel->hw_value, req_dur, duration, delay, 3692 dtim_interval); 3693 /* Set the node address */ 3694 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 3695 3696 lockdep_assert_held(&mvm->mutex); 3697 3698 spin_lock_bh(&mvm->time_event_lock); 3699 3700 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 3701 spin_unlock_bh(&mvm->time_event_lock); 3702 return -EIO; 3703 } 3704 3705 te_data->vif = vif; 3706 te_data->duration = duration; 3707 te_data->id = HOT_SPOT_CMD; 3708 3709 spin_unlock_bh(&mvm->time_event_lock); 3710 3711 /* 3712 * Use a notification wait, which really just processes the 3713 * command response and doesn't wait for anything, in order 3714 * to be able to process the response and get the UID inside 3715 * the RX path. Using CMD_WANT_SKB doesn't work because it 3716 * stores the buffer and then wakes up this thread, by which 3717 * time another notification (that the time event started) 3718 * might already be processed unsuccessfully. 3719 */ 3720 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 3721 time_event_response, 3722 ARRAY_SIZE(time_event_response), 3723 iwl_mvm_rx_aux_roc, te_data); 3724 3725 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 3726 &aux_roc_req); 3727 3728 if (res) { 3729 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 3730 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 3731 goto out_clear_te; 3732 } 3733 3734 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 3735 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 3736 /* should never fail */ 3737 WARN_ON_ONCE(res); 3738 3739 if (res) { 3740 out_clear_te: 3741 spin_lock_bh(&mvm->time_event_lock); 3742 iwl_mvm_te_clear_data(mvm, te_data); 3743 spin_unlock_bh(&mvm->time_event_lock); 3744 } 3745 3746 return res; 3747 } 3748 3749 static int iwl_mvm_roc(struct ieee80211_hw *hw, 3750 struct ieee80211_vif *vif, 3751 struct ieee80211_channel *channel, 3752 int duration, 3753 enum ieee80211_roc_type type) 3754 { 3755 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3756 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3757 struct cfg80211_chan_def chandef; 3758 struct iwl_mvm_phy_ctxt *phy_ctxt; 3759 int ret, i; 3760 3761 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 3762 duration, type); 3763 3764 /* 3765 * Flush the done work, just in case it's still pending, so that 3766 * the work it does can complete and we can accept new frames. 3767 */ 3768 flush_work(&mvm->roc_done_wk); 3769 3770 mutex_lock(&mvm->mutex); 3771 3772 switch (vif->type) { 3773 case NL80211_IFTYPE_STATION: 3774 if (fw_has_capa(&mvm->fw->ucode_capa, 3775 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 3776 /* Use aux roc framework (HS20) */ 3777 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 3778 vif, duration); 3779 goto out_unlock; 3780 } 3781 IWL_ERR(mvm, "hotspot not supported\n"); 3782 ret = -EINVAL; 3783 goto out_unlock; 3784 case NL80211_IFTYPE_P2P_DEVICE: 3785 /* handle below */ 3786 break; 3787 default: 3788 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 3789 ret = -EINVAL; 3790 goto out_unlock; 3791 } 3792 3793 for (i = 0; i < NUM_PHY_CTX; i++) { 3794 phy_ctxt = &mvm->phy_ctxts[i]; 3795 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) 3796 continue; 3797 3798 if (phy_ctxt->ref && channel == phy_ctxt->channel) { 3799 /* 3800 * Unbind the P2P_DEVICE from the current PHY context, 3801 * and if the PHY context is not used remove it. 3802 */ 3803 ret = iwl_mvm_binding_remove_vif(mvm, vif); 3804 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 3805 goto out_unlock; 3806 3807 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 3808 3809 /* Bind the P2P_DEVICE to the current PHY Context */ 3810 mvmvif->phy_ctxt = phy_ctxt; 3811 3812 ret = iwl_mvm_binding_add_vif(mvm, vif); 3813 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 3814 goto out_unlock; 3815 3816 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 3817 goto schedule_time_event; 3818 } 3819 } 3820 3821 /* Need to update the PHY context only if the ROC channel changed */ 3822 if (channel == mvmvif->phy_ctxt->channel) 3823 goto schedule_time_event; 3824 3825 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 3826 3827 /* 3828 * Change the PHY context configuration as it is currently referenced 3829 * only by the P2P Device MAC 3830 */ 3831 if (mvmvif->phy_ctxt->ref == 1) { 3832 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, 3833 &chandef, 1, 1); 3834 if (ret) 3835 goto out_unlock; 3836 } else { 3837 /* 3838 * The PHY context is shared with other MACs. Need to remove the 3839 * P2P Device from the binding, allocate an new PHY context and 3840 * create a new binding 3841 */ 3842 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 3843 if (!phy_ctxt) { 3844 ret = -ENOSPC; 3845 goto out_unlock; 3846 } 3847 3848 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 3849 1, 1); 3850 if (ret) { 3851 IWL_ERR(mvm, "Failed to change PHY context\n"); 3852 goto out_unlock; 3853 } 3854 3855 /* Unbind the P2P_DEVICE from the current PHY context */ 3856 ret = iwl_mvm_binding_remove_vif(mvm, vif); 3857 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 3858 goto out_unlock; 3859 3860 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 3861 3862 /* Bind the P2P_DEVICE to the new allocated PHY context */ 3863 mvmvif->phy_ctxt = phy_ctxt; 3864 3865 ret = iwl_mvm_binding_add_vif(mvm, vif); 3866 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 3867 goto out_unlock; 3868 3869 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 3870 } 3871 3872 schedule_time_event: 3873 /* Schedule the time events */ 3874 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 3875 3876 out_unlock: 3877 mutex_unlock(&mvm->mutex); 3878 IWL_DEBUG_MAC80211(mvm, "leave\n"); 3879 return ret; 3880 } 3881 3882 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 3883 struct ieee80211_vif *vif) 3884 { 3885 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3886 3887 IWL_DEBUG_MAC80211(mvm, "enter\n"); 3888 3889 mutex_lock(&mvm->mutex); 3890 iwl_mvm_stop_roc(mvm, vif); 3891 mutex_unlock(&mvm->mutex); 3892 3893 IWL_DEBUG_MAC80211(mvm, "leave\n"); 3894 return 0; 3895 } 3896 3897 struct iwl_mvm_ftm_responder_iter_data { 3898 bool responder; 3899 struct ieee80211_chanctx_conf *ctx; 3900 }; 3901 3902 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 3903 struct ieee80211_vif *vif) 3904 { 3905 struct iwl_mvm_ftm_responder_iter_data *data = _data; 3906 3907 if (rcu_access_pointer(vif->chanctx_conf) == data->ctx && 3908 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 3909 data->responder = true; 3910 } 3911 3912 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 3913 struct ieee80211_chanctx_conf *ctx) 3914 { 3915 struct iwl_mvm_ftm_responder_iter_data data = { 3916 .responder = false, 3917 .ctx = ctx, 3918 }; 3919 3920 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 3921 IEEE80211_IFACE_ITER_NORMAL, 3922 iwl_mvm_ftm_responder_chanctx_iter, 3923 &data); 3924 return data.responder; 3925 } 3926 3927 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 3928 struct ieee80211_chanctx_conf *ctx) 3929 { 3930 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3931 struct iwl_mvm_phy_ctxt *phy_ctxt; 3932 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 3933 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 3934 int ret; 3935 3936 lockdep_assert_held(&mvm->mutex); 3937 3938 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 3939 3940 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 3941 if (!phy_ctxt) { 3942 ret = -ENOSPC; 3943 goto out; 3944 } 3945 3946 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 3947 ctx->rx_chains_static, 3948 ctx->rx_chains_dynamic); 3949 if (ret) { 3950 IWL_ERR(mvm, "Failed to add PHY context\n"); 3951 goto out; 3952 } 3953 3954 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 3955 *phy_ctxt_id = phy_ctxt->id; 3956 out: 3957 return ret; 3958 } 3959 3960 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 3961 struct ieee80211_chanctx_conf *ctx) 3962 { 3963 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3964 int ret; 3965 3966 mutex_lock(&mvm->mutex); 3967 ret = __iwl_mvm_add_chanctx(mvm, ctx); 3968 mutex_unlock(&mvm->mutex); 3969 3970 return ret; 3971 } 3972 3973 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 3974 struct ieee80211_chanctx_conf *ctx) 3975 { 3976 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3977 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3978 3979 lockdep_assert_held(&mvm->mutex); 3980 3981 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 3982 } 3983 3984 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 3985 struct ieee80211_chanctx_conf *ctx) 3986 { 3987 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3988 3989 mutex_lock(&mvm->mutex); 3990 __iwl_mvm_remove_chanctx(mvm, ctx); 3991 mutex_unlock(&mvm->mutex); 3992 } 3993 3994 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 3995 struct ieee80211_chanctx_conf *ctx, 3996 u32 changed) 3997 { 3998 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3999 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4000 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4001 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4002 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4003 4004 if (WARN_ONCE((phy_ctxt->ref > 1) && 4005 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4006 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4007 IEEE80211_CHANCTX_CHANGE_RADAR | 4008 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4009 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4010 phy_ctxt->ref, changed)) 4011 return; 4012 4013 mutex_lock(&mvm->mutex); 4014 4015 /* we are only changing the min_width, may be a noop */ 4016 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4017 if (phy_ctxt->width == def->width) 4018 goto out_unlock; 4019 4020 /* we are just toggling between 20_NOHT and 20 */ 4021 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4022 def->width <= NL80211_CHAN_WIDTH_20) 4023 goto out_unlock; 4024 } 4025 4026 iwl_mvm_bt_coex_vif_change(mvm); 4027 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4028 ctx->rx_chains_static, 4029 ctx->rx_chains_dynamic); 4030 4031 out_unlock: 4032 mutex_unlock(&mvm->mutex); 4033 } 4034 4035 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4036 struct ieee80211_vif *vif, 4037 struct ieee80211_chanctx_conf *ctx, 4038 bool switching_chanctx) 4039 { 4040 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4041 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4042 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4043 int ret; 4044 4045 lockdep_assert_held(&mvm->mutex); 4046 4047 mvmvif->phy_ctxt = phy_ctxt; 4048 4049 switch (vif->type) { 4050 case NL80211_IFTYPE_AP: 4051 /* only needed if we're switching chanctx (i.e. during CSA) */ 4052 if (switching_chanctx) { 4053 mvmvif->ap_ibss_active = true; 4054 break; 4055 } 4056 /* fall through */ 4057 case NL80211_IFTYPE_ADHOC: 4058 /* 4059 * The AP binding flow is handled as part of the start_ap flow 4060 * (in bss_info_changed), similarly for IBSS. 4061 */ 4062 ret = 0; 4063 goto out; 4064 case NL80211_IFTYPE_STATION: 4065 mvmvif->csa_bcn_pending = false; 4066 break; 4067 case NL80211_IFTYPE_MONITOR: 4068 /* always disable PS when a monitor interface is active */ 4069 mvmvif->ps_disabled = true; 4070 break; 4071 default: 4072 ret = -EINVAL; 4073 goto out; 4074 } 4075 4076 ret = iwl_mvm_binding_add_vif(mvm, vif); 4077 if (ret) 4078 goto out; 4079 4080 /* 4081 * Power state must be updated before quotas, 4082 * otherwise fw will complain. 4083 */ 4084 iwl_mvm_power_update_mac(mvm); 4085 4086 /* Setting the quota at this stage is only required for monitor 4087 * interfaces. For the other types, the bss_info changed flow 4088 * will handle quota settings. 4089 */ 4090 if (vif->type == NL80211_IFTYPE_MONITOR) { 4091 mvmvif->monitor_active = true; 4092 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4093 if (ret) 4094 goto out_remove_binding; 4095 4096 ret = iwl_mvm_add_snif_sta(mvm, vif); 4097 if (ret) 4098 goto out_remove_binding; 4099 4100 } 4101 4102 /* Handle binding during CSA */ 4103 if (vif->type == NL80211_IFTYPE_AP) { 4104 iwl_mvm_update_quotas(mvm, false, NULL); 4105 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4106 } 4107 4108 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { 4109 mvmvif->csa_bcn_pending = true; 4110 4111 if (!fw_has_capa(&mvm->fw->ucode_capa, 4112 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4113 u32 duration = 3 * vif->bss_conf.beacon_int; 4114 4115 /* Protect the session to make sure we hear the first 4116 * beacon on the new channel. 4117 */ 4118 iwl_mvm_protect_session(mvm, vif, duration, duration, 4119 vif->bss_conf.beacon_int / 2, 4120 true); 4121 } 4122 4123 iwl_mvm_update_quotas(mvm, false, NULL); 4124 } 4125 4126 goto out; 4127 4128 out_remove_binding: 4129 iwl_mvm_binding_remove_vif(mvm, vif); 4130 iwl_mvm_power_update_mac(mvm); 4131 out: 4132 if (ret) 4133 mvmvif->phy_ctxt = NULL; 4134 return ret; 4135 } 4136 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 4137 struct ieee80211_vif *vif, 4138 struct ieee80211_chanctx_conf *ctx) 4139 { 4140 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4141 int ret; 4142 4143 mutex_lock(&mvm->mutex); 4144 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); 4145 mutex_unlock(&mvm->mutex); 4146 4147 return ret; 4148 } 4149 4150 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 4151 struct ieee80211_vif *vif, 4152 struct ieee80211_chanctx_conf *ctx, 4153 bool switching_chanctx) 4154 { 4155 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4156 struct ieee80211_vif *disabled_vif = NULL; 4157 4158 lockdep_assert_held(&mvm->mutex); 4159 4160 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); 4161 4162 switch (vif->type) { 4163 case NL80211_IFTYPE_ADHOC: 4164 goto out; 4165 case NL80211_IFTYPE_MONITOR: 4166 mvmvif->monitor_active = false; 4167 mvmvif->ps_disabled = false; 4168 iwl_mvm_rm_snif_sta(mvm, vif); 4169 break; 4170 case NL80211_IFTYPE_AP: 4171 /* This part is triggered only during CSA */ 4172 if (!switching_chanctx || !mvmvif->ap_ibss_active) 4173 goto out; 4174 4175 mvmvif->csa_countdown = false; 4176 4177 /* Set CS bit on all the stations */ 4178 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 4179 4180 /* Save blocked iface, the timeout is set on the next beacon */ 4181 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 4182 4183 mvmvif->ap_ibss_active = false; 4184 break; 4185 case NL80211_IFTYPE_STATION: 4186 if (!switching_chanctx) 4187 break; 4188 4189 disabled_vif = vif; 4190 4191 if (!fw_has_capa(&mvm->fw->ucode_capa, 4192 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 4193 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 4194 break; 4195 default: 4196 break; 4197 } 4198 4199 iwl_mvm_update_quotas(mvm, false, disabled_vif); 4200 iwl_mvm_binding_remove_vif(mvm, vif); 4201 4202 out: 4203 mvmvif->phy_ctxt = NULL; 4204 iwl_mvm_power_update_mac(mvm); 4205 } 4206 4207 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 4208 struct ieee80211_vif *vif, 4209 struct ieee80211_chanctx_conf *ctx) 4210 { 4211 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4212 4213 mutex_lock(&mvm->mutex); 4214 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); 4215 mutex_unlock(&mvm->mutex); 4216 } 4217 4218 static int 4219 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 4220 struct ieee80211_vif_chanctx_switch *vifs) 4221 { 4222 int ret; 4223 4224 mutex_lock(&mvm->mutex); 4225 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4226 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 4227 4228 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 4229 if (ret) { 4230 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 4231 goto out_reassign; 4232 } 4233 4234 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4235 true); 4236 if (ret) { 4237 IWL_ERR(mvm, 4238 "failed to assign new_ctx during channel switch\n"); 4239 goto out_remove; 4240 } 4241 4242 /* we don't support TDLS during DCM - can be caused by channel switch */ 4243 if (iwl_mvm_phy_ctx_count(mvm) > 1) 4244 iwl_mvm_teardown_tdls_peers(mvm); 4245 4246 goto out; 4247 4248 out_remove: 4249 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 4250 4251 out_reassign: 4252 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 4253 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 4254 goto out_restart; 4255 } 4256 4257 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4258 true)) { 4259 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4260 goto out_restart; 4261 } 4262 4263 goto out; 4264 4265 out_restart: 4266 /* things keep failing, better restart the hw */ 4267 iwl_mvm_nic_restart(mvm, false); 4268 4269 out: 4270 mutex_unlock(&mvm->mutex); 4271 4272 return ret; 4273 } 4274 4275 static int 4276 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 4277 struct ieee80211_vif_chanctx_switch *vifs) 4278 { 4279 int ret; 4280 4281 mutex_lock(&mvm->mutex); 4282 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4283 4284 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4285 true); 4286 if (ret) { 4287 IWL_ERR(mvm, 4288 "failed to assign new_ctx during channel switch\n"); 4289 goto out_reassign; 4290 } 4291 4292 goto out; 4293 4294 out_reassign: 4295 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4296 true)) { 4297 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4298 goto out_restart; 4299 } 4300 4301 goto out; 4302 4303 out_restart: 4304 /* things keep failing, better restart the hw */ 4305 iwl_mvm_nic_restart(mvm, false); 4306 4307 out: 4308 mutex_unlock(&mvm->mutex); 4309 4310 return ret; 4311 } 4312 4313 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 4314 struct ieee80211_vif_chanctx_switch *vifs, 4315 int n_vifs, 4316 enum ieee80211_chanctx_switch_mode mode) 4317 { 4318 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4319 int ret; 4320 4321 /* we only support a single-vif right now */ 4322 if (n_vifs > 1) 4323 return -EOPNOTSUPP; 4324 4325 switch (mode) { 4326 case CHANCTX_SWMODE_SWAP_CONTEXTS: 4327 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); 4328 break; 4329 case CHANCTX_SWMODE_REASSIGN_VIF: 4330 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); 4331 break; 4332 default: 4333 ret = -EOPNOTSUPP; 4334 break; 4335 } 4336 4337 return ret; 4338 } 4339 4340 static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 4341 { 4342 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4343 4344 return mvm->ibss_manager; 4345 } 4346 4347 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, 4348 struct ieee80211_sta *sta, 4349 bool set) 4350 { 4351 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4352 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4353 4354 if (!mvm_sta || !mvm_sta->vif) { 4355 IWL_ERR(mvm, "Station is not associated to a vif\n"); 4356 return -EINVAL; 4357 } 4358 4359 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); 4360 } 4361 4362 #ifdef CONFIG_NL80211_TESTMODE 4363 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 4364 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 4365 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 4366 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 4367 }; 4368 4369 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 4370 struct ieee80211_vif *vif, 4371 void *data, int len) 4372 { 4373 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 4374 int err; 4375 u32 noa_duration; 4376 4377 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 4378 iwl_mvm_tm_policy, NULL); 4379 if (err) 4380 return err; 4381 4382 if (!tb[IWL_MVM_TM_ATTR_CMD]) 4383 return -EINVAL; 4384 4385 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 4386 case IWL_MVM_TM_CMD_SET_NOA: 4387 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 4388 !vif->bss_conf.enable_beacon || 4389 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 4390 return -EINVAL; 4391 4392 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 4393 if (noa_duration >= vif->bss_conf.beacon_int) 4394 return -EINVAL; 4395 4396 mvm->noa_duration = noa_duration; 4397 mvm->noa_vif = vif; 4398 4399 return iwl_mvm_update_quotas(mvm, true, NULL); 4400 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 4401 /* must be associated client vif - ignore authorized */ 4402 if (!vif || vif->type != NL80211_IFTYPE_STATION || 4403 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || 4404 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 4405 return -EINVAL; 4406 4407 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 4408 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 4409 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4410 } 4411 4412 return -EOPNOTSUPP; 4413 } 4414 4415 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 4416 struct ieee80211_vif *vif, 4417 void *data, int len) 4418 { 4419 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4420 int err; 4421 4422 mutex_lock(&mvm->mutex); 4423 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 4424 mutex_unlock(&mvm->mutex); 4425 4426 return err; 4427 } 4428 #endif 4429 4430 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, 4431 struct ieee80211_vif *vif, 4432 struct ieee80211_channel_switch *chsw) 4433 { 4434 /* By implementing this operation, we prevent mac80211 from 4435 * starting its own channel switch timer, so that we can call 4436 * ieee80211_chswitch_done() ourselves at the right time 4437 * (which is when the absence time event starts). 4438 */ 4439 4440 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 4441 "dummy channel switch op\n"); 4442 } 4443 4444 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 4445 struct ieee80211_vif *vif, 4446 struct ieee80211_channel_switch *chsw) 4447 { 4448 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4449 struct iwl_chan_switch_te_cmd cmd = { 4450 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4451 mvmvif->color)), 4452 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4453 .tsf = cpu_to_le32(chsw->timestamp), 4454 .cs_count = chsw->count, 4455 .cs_mode = chsw->block_tx, 4456 }; 4457 4458 lockdep_assert_held(&mvm->mutex); 4459 4460 if (chsw->delay) 4461 cmd.cs_delayed_bcn_count = 4462 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 4463 4464 return iwl_mvm_send_cmd_pdu(mvm, 4465 WIDE_ID(MAC_CONF_GROUP, 4466 CHANNEL_SWITCH_TIME_EVENT_CMD), 4467 0, sizeof(cmd), &cmd); 4468 } 4469 4470 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 4471 struct ieee80211_vif *vif, 4472 struct ieee80211_channel_switch *chsw) 4473 { 4474 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4475 u32 apply_time; 4476 4477 /* Schedule the time event to a bit before beacon 1, 4478 * to make sure we're in the new channel when the 4479 * GO/AP arrives. In case count <= 1 immediately schedule the 4480 * TE (this might result with some packet loss or connection 4481 * loss). 4482 */ 4483 if (chsw->count <= 1) 4484 apply_time = 0; 4485 else 4486 apply_time = chsw->device_timestamp + 4487 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 4488 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 4489 4490 if (chsw->block_tx) 4491 iwl_mvm_csa_client_absent(mvm, vif); 4492 4493 if (mvmvif->bf_data.bf_enabled) { 4494 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4495 4496 if (ret) 4497 return ret; 4498 } 4499 4500 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 4501 apply_time); 4502 4503 return 0; 4504 } 4505 4506 #define IWL_MAX_CSA_BLOCK_TX 1500 4507 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 4508 struct ieee80211_vif *vif, 4509 struct ieee80211_channel_switch *chsw) 4510 { 4511 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4512 struct ieee80211_vif *csa_vif; 4513 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4514 int ret; 4515 4516 mutex_lock(&mvm->mutex); 4517 4518 mvmvif->csa_failed = false; 4519 4520 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 4521 chsw->chandef.center_freq1); 4522 4523 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 4524 ieee80211_vif_to_wdev(vif), 4525 FW_DBG_TRIGGER_CHANNEL_SWITCH); 4526 4527 switch (vif->type) { 4528 case NL80211_IFTYPE_AP: 4529 csa_vif = 4530 rcu_dereference_protected(mvm->csa_vif, 4531 lockdep_is_held(&mvm->mutex)); 4532 if (WARN_ONCE(csa_vif && csa_vif->csa_active, 4533 "Another CSA is already in progress")) { 4534 ret = -EBUSY; 4535 goto out_unlock; 4536 } 4537 4538 /* we still didn't unblock tx. prevent new CS meanwhile */ 4539 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 4540 lockdep_is_held(&mvm->mutex))) { 4541 ret = -EBUSY; 4542 goto out_unlock; 4543 } 4544 4545 rcu_assign_pointer(mvm->csa_vif, vif); 4546 4547 if (WARN_ONCE(mvmvif->csa_countdown, 4548 "Previous CSA countdown didn't complete")) { 4549 ret = -EBUSY; 4550 goto out_unlock; 4551 } 4552 4553 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 4554 4555 break; 4556 case NL80211_IFTYPE_STATION: 4557 if (chsw->block_tx) { 4558 /* 4559 * In case of undetermined / long time with immediate 4560 * quiet monitor status to gracefully disconnect 4561 */ 4562 if (!chsw->count || 4563 chsw->count * vif->bss_conf.beacon_int > 4564 IWL_MAX_CSA_BLOCK_TX) 4565 schedule_delayed_work(&mvmvif->csa_work, 4566 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 4567 } 4568 4569 if (!fw_has_capa(&mvm->fw->ucode_capa, 4570 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4571 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 4572 if (ret) 4573 goto out_unlock; 4574 } else { 4575 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 4576 } 4577 4578 mvmvif->csa_count = chsw->count; 4579 mvmvif->csa_misbehave = false; 4580 break; 4581 default: 4582 break; 4583 } 4584 4585 mvmvif->ps_disabled = true; 4586 4587 ret = iwl_mvm_power_update_ps(mvm); 4588 if (ret) 4589 goto out_unlock; 4590 4591 /* we won't be on this channel any longer */ 4592 iwl_mvm_teardown_tdls_peers(mvm); 4593 4594 out_unlock: 4595 mutex_unlock(&mvm->mutex); 4596 4597 return ret; 4598 } 4599 4600 static void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 4601 struct ieee80211_vif *vif, 4602 struct ieee80211_channel_switch *chsw) 4603 { 4604 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4605 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4606 struct iwl_chan_switch_te_cmd cmd = { 4607 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4608 mvmvif->color)), 4609 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 4610 .tsf = cpu_to_le32(chsw->timestamp), 4611 .cs_count = chsw->count, 4612 .cs_mode = chsw->block_tx, 4613 }; 4614 4615 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 4616 return; 4617 4618 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 4619 if (mvmvif->csa_misbehave) { 4620 /* Second time, give up on this AP*/ 4621 iwl_mvm_abort_channel_switch(hw, vif); 4622 ieee80211_chswitch_done(vif, false); 4623 mvmvif->csa_misbehave = false; 4624 return; 4625 } 4626 mvmvif->csa_misbehave = true; 4627 } 4628 mvmvif->csa_count = chsw->count; 4629 4630 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d\n", mvmvif->id); 4631 4632 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 4633 WIDE_ID(MAC_CONF_GROUP, 4634 CHANNEL_SWITCH_TIME_EVENT_CMD), 4635 CMD_ASYNC, sizeof(cmd), &cmd)); 4636 } 4637 4638 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 4639 { 4640 int i; 4641 4642 if (!iwl_mvm_has_new_tx_api(mvm)) { 4643 if (drop) { 4644 mutex_lock(&mvm->mutex); 4645 iwl_mvm_flush_tx_path(mvm, 4646 iwl_mvm_flushable_queues(mvm) & queues, 0); 4647 mutex_unlock(&mvm->mutex); 4648 } else { 4649 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 4650 } 4651 return; 4652 } 4653 4654 mutex_lock(&mvm->mutex); 4655 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 4656 struct ieee80211_sta *sta; 4657 4658 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4659 lockdep_is_held(&mvm->mutex)); 4660 if (IS_ERR_OR_NULL(sta)) 4661 continue; 4662 4663 if (drop) 4664 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF, 0); 4665 else 4666 iwl_mvm_wait_sta_queues_empty(mvm, 4667 iwl_mvm_sta_from_mac80211(sta)); 4668 } 4669 mutex_unlock(&mvm->mutex); 4670 } 4671 4672 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, 4673 struct ieee80211_vif *vif, u32 queues, bool drop) 4674 { 4675 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4676 struct iwl_mvm_vif *mvmvif; 4677 struct iwl_mvm_sta *mvmsta; 4678 struct ieee80211_sta *sta; 4679 int i; 4680 u32 msk = 0; 4681 4682 if (!vif) { 4683 iwl_mvm_flush_no_vif(mvm, queues, drop); 4684 return; 4685 } 4686 4687 if (vif->type != NL80211_IFTYPE_STATION) 4688 return; 4689 4690 /* Make sure we're done with the deferred traffic before flushing */ 4691 flush_work(&mvm->add_stream_wk); 4692 4693 mutex_lock(&mvm->mutex); 4694 mvmvif = iwl_mvm_vif_from_mac80211(vif); 4695 4696 /* flush the AP-station and all TDLS peers */ 4697 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 4698 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4699 lockdep_is_held(&mvm->mutex)); 4700 if (IS_ERR_OR_NULL(sta)) 4701 continue; 4702 4703 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4704 if (mvmsta->vif != vif) 4705 continue; 4706 4707 /* make sure only TDLS peers or the AP are flushed */ 4708 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); 4709 4710 if (drop) { 4711 if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0)) 4712 IWL_ERR(mvm, "flush request fail\n"); 4713 } else { 4714 msk |= mvmsta->tfd_queue_msk; 4715 if (iwl_mvm_has_new_tx_api(mvm)) 4716 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 4717 } 4718 } 4719 4720 mutex_unlock(&mvm->mutex); 4721 4722 /* this can take a while, and we may need/want other operations 4723 * to succeed while doing this, so do it without the mutex held 4724 */ 4725 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 4726 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 4727 } 4728 4729 static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 4730 struct survey_info *survey) 4731 { 4732 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4733 int ret; 4734 4735 memset(survey, 0, sizeof(*survey)); 4736 4737 /* only support global statistics right now */ 4738 if (idx != 0) 4739 return -ENOENT; 4740 4741 if (!fw_has_capa(&mvm->fw->ucode_capa, 4742 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 4743 return -ENOENT; 4744 4745 mutex_lock(&mvm->mutex); 4746 4747 if (iwl_mvm_firmware_running(mvm)) { 4748 ret = iwl_mvm_request_statistics(mvm, false); 4749 if (ret) 4750 goto out; 4751 } 4752 4753 survey->filled = SURVEY_INFO_TIME | 4754 SURVEY_INFO_TIME_RX | 4755 SURVEY_INFO_TIME_TX | 4756 SURVEY_INFO_TIME_SCAN; 4757 survey->time = mvm->accu_radio_stats.on_time_rf + 4758 mvm->radio_stats.on_time_rf; 4759 do_div(survey->time, USEC_PER_MSEC); 4760 4761 survey->time_rx = mvm->accu_radio_stats.rx_time + 4762 mvm->radio_stats.rx_time; 4763 do_div(survey->time_rx, USEC_PER_MSEC); 4764 4765 survey->time_tx = mvm->accu_radio_stats.tx_time + 4766 mvm->radio_stats.tx_time; 4767 do_div(survey->time_tx, USEC_PER_MSEC); 4768 4769 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 4770 mvm->radio_stats.on_time_scan; 4771 do_div(survey->time_scan, USEC_PER_MSEC); 4772 4773 ret = 0; 4774 out: 4775 mutex_unlock(&mvm->mutex); 4776 return ret; 4777 } 4778 4779 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 4780 { 4781 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 4782 case RATE_MCS_CHAN_WIDTH_20: 4783 rinfo->bw = RATE_INFO_BW_20; 4784 break; 4785 case RATE_MCS_CHAN_WIDTH_40: 4786 rinfo->bw = RATE_INFO_BW_40; 4787 break; 4788 case RATE_MCS_CHAN_WIDTH_80: 4789 rinfo->bw = RATE_INFO_BW_80; 4790 break; 4791 case RATE_MCS_CHAN_WIDTH_160: 4792 rinfo->bw = RATE_INFO_BW_160; 4793 break; 4794 } 4795 4796 if (rate_n_flags & RATE_MCS_HT_MSK) { 4797 rinfo->flags |= RATE_INFO_FLAGS_MCS; 4798 rinfo->mcs = u32_get_bits(rate_n_flags, RATE_HT_MCS_INDEX_MSK); 4799 rinfo->nss = u32_get_bits(rate_n_flags, 4800 RATE_HT_MCS_NSS_MSK) + 1; 4801 if (rate_n_flags & RATE_MCS_SGI_MSK) 4802 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 4803 } else if (rate_n_flags & RATE_MCS_VHT_MSK) { 4804 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 4805 rinfo->mcs = u32_get_bits(rate_n_flags, 4806 RATE_VHT_MCS_RATE_CODE_MSK); 4807 rinfo->nss = u32_get_bits(rate_n_flags, 4808 RATE_VHT_MCS_NSS_MSK) + 1; 4809 if (rate_n_flags & RATE_MCS_SGI_MSK) 4810 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 4811 } else if (rate_n_flags & RATE_MCS_HE_MSK) { 4812 u32 gi_ltf = u32_get_bits(rate_n_flags, 4813 RATE_MCS_HE_GI_LTF_MSK); 4814 4815 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 4816 rinfo->mcs = u32_get_bits(rate_n_flags, 4817 RATE_VHT_MCS_RATE_CODE_MSK); 4818 rinfo->nss = u32_get_bits(rate_n_flags, 4819 RATE_VHT_MCS_NSS_MSK) + 1; 4820 4821 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 4822 rinfo->bw = RATE_INFO_BW_HE_RU; 4823 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 4824 } 4825 4826 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 4827 case RATE_MCS_HE_TYPE_SU: 4828 case RATE_MCS_HE_TYPE_EXT_SU: 4829 if (gi_ltf == 0 || gi_ltf == 1) 4830 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 4831 else if (gi_ltf == 2) 4832 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 4833 else if (rate_n_flags & RATE_MCS_SGI_MSK) 4834 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 4835 else 4836 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 4837 break; 4838 case RATE_MCS_HE_TYPE_MU: 4839 if (gi_ltf == 0 || gi_ltf == 1) 4840 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 4841 else if (gi_ltf == 2) 4842 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 4843 else 4844 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 4845 break; 4846 case RATE_MCS_HE_TYPE_TRIG: 4847 if (gi_ltf == 0 || gi_ltf == 1) 4848 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 4849 else 4850 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 4851 break; 4852 } 4853 4854 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 4855 rinfo->he_dcm = 1; 4856 } else { 4857 switch (u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK)) { 4858 case IWL_RATE_1M_PLCP: 4859 rinfo->legacy = 10; 4860 break; 4861 case IWL_RATE_2M_PLCP: 4862 rinfo->legacy = 20; 4863 break; 4864 case IWL_RATE_5M_PLCP: 4865 rinfo->legacy = 55; 4866 break; 4867 case IWL_RATE_11M_PLCP: 4868 rinfo->legacy = 110; 4869 break; 4870 case IWL_RATE_6M_PLCP: 4871 rinfo->legacy = 60; 4872 break; 4873 case IWL_RATE_9M_PLCP: 4874 rinfo->legacy = 90; 4875 break; 4876 case IWL_RATE_12M_PLCP: 4877 rinfo->legacy = 120; 4878 break; 4879 case IWL_RATE_18M_PLCP: 4880 rinfo->legacy = 180; 4881 break; 4882 case IWL_RATE_24M_PLCP: 4883 rinfo->legacy = 240; 4884 break; 4885 case IWL_RATE_36M_PLCP: 4886 rinfo->legacy = 360; 4887 break; 4888 case IWL_RATE_48M_PLCP: 4889 rinfo->legacy = 480; 4890 break; 4891 case IWL_RATE_54M_PLCP: 4892 rinfo->legacy = 540; 4893 break; 4894 } 4895 } 4896 } 4897 4898 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 4899 struct ieee80211_vif *vif, 4900 struct ieee80211_sta *sta, 4901 struct station_info *sinfo) 4902 { 4903 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4904 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4905 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 4906 4907 if (mvmsta->avg_energy) { 4908 sinfo->signal_avg = mvmsta->avg_energy; 4909 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 4910 } 4911 4912 if (iwl_mvm_has_tlc_offload(mvm)) { 4913 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw; 4914 4915 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 4916 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 4917 } 4918 4919 /* if beacon filtering isn't on mac80211 does it anyway */ 4920 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 4921 return; 4922 4923 if (!vif->bss_conf.assoc) 4924 return; 4925 4926 mutex_lock(&mvm->mutex); 4927 4928 if (mvmvif->ap_sta_id != mvmsta->sta_id) 4929 goto unlock; 4930 4931 if (iwl_mvm_request_statistics(mvm, false)) 4932 goto unlock; 4933 4934 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + 4935 mvmvif->beacon_stats.accu_num_beacons; 4936 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 4937 if (mvmvif->beacon_stats.avg_signal) { 4938 /* firmware only reports a value after RXing a few beacons */ 4939 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; 4940 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 4941 } 4942 unlock: 4943 mutex_unlock(&mvm->mutex); 4944 } 4945 4946 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 4947 struct ieee80211_vif *vif, 4948 const struct ieee80211_event *event) 4949 { 4950 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 4951 do { \ 4952 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 4953 break; \ 4954 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 4955 } while (0) 4956 4957 struct iwl_fw_dbg_trigger_tlv *trig; 4958 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 4959 4960 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 4961 FW_DBG_TRIGGER_MLME); 4962 if (!trig) 4963 return; 4964 4965 trig_mlme = (void *)trig->data; 4966 4967 if (event->u.mlme.data == ASSOC_EVENT) { 4968 if (event->u.mlme.status == MLME_DENIED) 4969 CHECK_MLME_TRIGGER(stop_assoc_denied, 4970 "DENIED ASSOC: reason %d", 4971 event->u.mlme.reason); 4972 else if (event->u.mlme.status == MLME_TIMEOUT) 4973 CHECK_MLME_TRIGGER(stop_assoc_timeout, 4974 "ASSOC TIMEOUT"); 4975 } else if (event->u.mlme.data == AUTH_EVENT) { 4976 if (event->u.mlme.status == MLME_DENIED) 4977 CHECK_MLME_TRIGGER(stop_auth_denied, 4978 "DENIED AUTH: reason %d", 4979 event->u.mlme.reason); 4980 else if (event->u.mlme.status == MLME_TIMEOUT) 4981 CHECK_MLME_TRIGGER(stop_auth_timeout, 4982 "AUTH TIMEOUT"); 4983 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 4984 CHECK_MLME_TRIGGER(stop_rx_deauth, 4985 "DEAUTH RX %d", event->u.mlme.reason); 4986 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 4987 CHECK_MLME_TRIGGER(stop_tx_deauth, 4988 "DEAUTH TX %d", event->u.mlme.reason); 4989 } 4990 #undef CHECK_MLME_TRIGGER 4991 } 4992 4993 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 4994 struct ieee80211_vif *vif, 4995 const struct ieee80211_event *event) 4996 { 4997 struct iwl_fw_dbg_trigger_tlv *trig; 4998 struct iwl_fw_dbg_trigger_ba *ba_trig; 4999 5000 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5001 FW_DBG_TRIGGER_BA); 5002 if (!trig) 5003 return; 5004 5005 ba_trig = (void *)trig->data; 5006 5007 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 5008 return; 5009 5010 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 5011 "BAR received from %pM, tid %d, ssn %d", 5012 event->u.ba.sta->addr, event->u.ba.tid, 5013 event->u.ba.ssn); 5014 } 5015 5016 static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 5017 struct ieee80211_vif *vif, 5018 const struct ieee80211_event *event) 5019 { 5020 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5021 5022 switch (event->type) { 5023 case MLME_EVENT: 5024 iwl_mvm_event_mlme_callback(mvm, vif, event); 5025 break; 5026 case BAR_RX_EVENT: 5027 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 5028 break; 5029 case BA_FRAME_TIMEOUT: 5030 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 5031 event->u.ba.tid); 5032 break; 5033 default: 5034 break; 5035 } 5036 } 5037 5038 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 5039 struct iwl_mvm_internal_rxq_notif *notif, 5040 u32 size) 5041 { 5042 u32 qmask = BIT(mvm->trans->num_rx_queues) - 1; 5043 int ret; 5044 5045 5046 if (!iwl_mvm_has_new_rx_api(mvm)) 5047 return; 5048 5049 if (notif->sync) { 5050 notif->cookie = mvm->queue_sync_cookie; 5051 atomic_set(&mvm->queue_sync_counter, 5052 mvm->trans->num_rx_queues); 5053 } 5054 5055 ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, 5056 size, !notif->sync); 5057 if (ret) { 5058 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 5059 goto out; 5060 } 5061 5062 if (notif->sync) { 5063 lockdep_assert_held(&mvm->mutex); 5064 ret = wait_event_timeout(mvm->rx_sync_waitq, 5065 atomic_read(&mvm->queue_sync_counter) == 0 || 5066 iwl_mvm_is_radio_killed(mvm), 5067 HZ); 5068 WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm)); 5069 } 5070 5071 out: 5072 atomic_set(&mvm->queue_sync_counter, 0); 5073 if (notif->sync) 5074 mvm->queue_sync_cookie++; 5075 } 5076 5077 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 5078 { 5079 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5080 struct iwl_mvm_internal_rxq_notif data = { 5081 .type = IWL_MVM_RXQ_EMPTY, 5082 .sync = 1, 5083 }; 5084 5085 mutex_lock(&mvm->mutex); 5086 iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data)); 5087 mutex_unlock(&mvm->mutex); 5088 } 5089 5090 static int 5091 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 5092 struct ieee80211_vif *vif, 5093 struct cfg80211_ftm_responder_stats *stats) 5094 { 5095 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5096 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5097 5098 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 5099 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 5100 return -EINVAL; 5101 5102 mutex_lock(&mvm->mutex); 5103 *stats = mvm->ftm_resp_stats; 5104 mutex_unlock(&mvm->mutex); 5105 5106 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 5107 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 5108 BIT(NL80211_FTM_STATS_FAILED_NUM) | 5109 BIT(NL80211_FTM_STATS_ASAP_NUM) | 5110 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 5111 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 5112 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 5113 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 5114 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 5115 5116 return 0; 5117 } 5118 5119 static int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, 5120 struct ieee80211_vif *vif, 5121 struct cfg80211_pmsr_request *request) 5122 { 5123 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5124 int ret; 5125 5126 mutex_lock(&mvm->mutex); 5127 ret = iwl_mvm_ftm_start(mvm, vif, request); 5128 mutex_unlock(&mvm->mutex); 5129 5130 return ret; 5131 } 5132 5133 static void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, 5134 struct ieee80211_vif *vif, 5135 struct cfg80211_pmsr_request *request) 5136 { 5137 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5138 5139 mutex_lock(&mvm->mutex); 5140 iwl_mvm_ftm_abort(mvm, request); 5141 mutex_unlock(&mvm->mutex); 5142 } 5143 5144 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 5145 { 5146 u8 protocol = ip_hdr(skb)->protocol; 5147 5148 if (!IS_ENABLED(CONFIG_INET)) 5149 return false; 5150 5151 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 5152 } 5153 5154 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 5155 struct sk_buff *head, 5156 struct sk_buff *skb) 5157 { 5158 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5159 5160 /* For now don't aggregate IPv6 in AMSDU */ 5161 if (skb->protocol != htons(ETH_P_IP)) 5162 return false; 5163 5164 if (!iwl_mvm_is_csum_supported(mvm)) 5165 return true; 5166 5167 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 5168 } 5169 5170 const struct ieee80211_ops iwl_mvm_hw_ops = { 5171 .tx = iwl_mvm_mac_tx, 5172 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 5173 .ampdu_action = iwl_mvm_mac_ampdu_action, 5174 .get_antenna = iwl_mvm_op_get_antenna, 5175 .start = iwl_mvm_mac_start, 5176 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 5177 .stop = iwl_mvm_mac_stop, 5178 .add_interface = iwl_mvm_mac_add_interface, 5179 .remove_interface = iwl_mvm_mac_remove_interface, 5180 .config = iwl_mvm_mac_config, 5181 .prepare_multicast = iwl_mvm_prepare_multicast, 5182 .configure_filter = iwl_mvm_configure_filter, 5183 .config_iface_filter = iwl_mvm_config_iface_filter, 5184 .bss_info_changed = iwl_mvm_bss_info_changed, 5185 .hw_scan = iwl_mvm_mac_hw_scan, 5186 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 5187 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 5188 .sta_state = iwl_mvm_mac_sta_state, 5189 .sta_notify = iwl_mvm_mac_sta_notify, 5190 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 5191 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 5192 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 5193 .sta_rc_update = iwl_mvm_sta_rc_update, 5194 .conf_tx = iwl_mvm_mac_conf_tx, 5195 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 5196 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 5197 .flush = iwl_mvm_mac_flush, 5198 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 5199 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 5200 .set_key = iwl_mvm_mac_set_key, 5201 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 5202 .remain_on_channel = iwl_mvm_roc, 5203 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 5204 .add_chanctx = iwl_mvm_add_chanctx, 5205 .remove_chanctx = iwl_mvm_remove_chanctx, 5206 .change_chanctx = iwl_mvm_change_chanctx, 5207 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 5208 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 5209 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 5210 5211 .start_ap = iwl_mvm_start_ap_ibss, 5212 .stop_ap = iwl_mvm_stop_ap_ibss, 5213 .join_ibss = iwl_mvm_start_ap_ibss, 5214 .leave_ibss = iwl_mvm_stop_ap_ibss, 5215 5216 .tx_last_beacon = iwl_mvm_tx_last_beacon, 5217 5218 .set_tim = iwl_mvm_set_tim, 5219 5220 .channel_switch = iwl_mvm_channel_switch, 5221 .pre_channel_switch = iwl_mvm_pre_channel_switch, 5222 .post_channel_switch = iwl_mvm_post_channel_switch, 5223 .abort_channel_switch = iwl_mvm_abort_channel_switch, 5224 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 5225 5226 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 5227 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 5228 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 5229 5230 .event_callback = iwl_mvm_mac_event_callback, 5231 5232 .sync_rx_queues = iwl_mvm_sync_rx_queues, 5233 5234 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 5235 5236 #ifdef CONFIG_PM_SLEEP 5237 /* look at d3.c */ 5238 .suspend = iwl_mvm_suspend, 5239 .resume = iwl_mvm_resume, 5240 .set_wakeup = iwl_mvm_set_wakeup, 5241 .set_rekey_data = iwl_mvm_set_rekey_data, 5242 #if IS_ENABLED(CONFIG_IPV6) 5243 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 5244 #endif 5245 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 5246 #endif 5247 .get_survey = iwl_mvm_mac_get_survey, 5248 .sta_statistics = iwl_mvm_mac_sta_statistics, 5249 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 5250 .start_pmsr = iwl_mvm_start_pmsr, 5251 .abort_pmsr = iwl_mvm_abort_pmsr, 5252 5253 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 5254 #ifdef CONFIG_IWLWIFI_DEBUGFS 5255 .sta_add_debugfs = iwl_mvm_sta_add_debugfs, 5256 #endif 5257 }; 5258