1 /****************************************************************************** 2 * 3 * This file is provided under a dual BSD/GPLv2 license. When using or 4 * redistributing this file, you may do so under either license. 5 * 6 * GPL LICENSE SUMMARY 7 * 8 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 9 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 10 * Copyright(c) 2012 - 2014, 2018 - 2020 Intel Corporation 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of version 2 of the GNU General Public License as 14 * published by the Free Software Foundation. 15 * 16 * This program is distributed in the hope that it will be useful, but 17 * WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * General Public License for more details. 20 * 21 * The full GNU General Public License is included in this distribution 22 * in the file called COPYING. 23 * 24 * Contact Information: 25 * Intel Linux Wireless <linuxwifi@intel.com> 26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 27 * 28 * BSD LICENSE 29 * 30 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 31 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 32 * Copyright(c) 2012 - 2014, 2018 - 2020 Intel Corporation 33 * All rights reserved. 34 * 35 * Redistribution and use in source and binary forms, with or without 36 * modification, are permitted provided that the following conditions 37 * are met: 38 * 39 * * Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * * Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in 43 * the documentation and/or other materials provided with the 44 * distribution. 45 * * Neither the name Intel Corporation nor the names of its 46 * contributors may be used to endorse or promote products derived 47 * from this software without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 50 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 51 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 52 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 53 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 54 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 55 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 56 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 57 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 59 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 60 * 61 *****************************************************************************/ 62 #include <linux/kernel.h> 63 #include <linux/slab.h> 64 #include <linux/skbuff.h> 65 #include <linux/netdevice.h> 66 #include <linux/etherdevice.h> 67 #include <linux/ip.h> 68 #include <linux/if_arp.h> 69 #include <linux/time.h> 70 #include <net/mac80211.h> 71 #include <net/ieee80211_radiotap.h> 72 #include <net/tcp.h> 73 74 #include "iwl-op-mode.h" 75 #include "iwl-io.h" 76 #include "mvm.h" 77 #include "sta.h" 78 #include "time-event.h" 79 #include "iwl-eeprom-parse.h" 80 #include "iwl-phy-db.h" 81 #include "testmode.h" 82 #include "fw/error-dump.h" 83 #include "iwl-prph.h" 84 #include "iwl-nvm-parse.h" 85 86 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 87 { 88 .max = 1, 89 .types = BIT(NL80211_IFTYPE_STATION), 90 }, 91 { 92 .max = 1, 93 .types = BIT(NL80211_IFTYPE_AP) | 94 BIT(NL80211_IFTYPE_P2P_CLIENT) | 95 BIT(NL80211_IFTYPE_P2P_GO), 96 }, 97 { 98 .max = 1, 99 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 100 }, 101 }; 102 103 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 104 { 105 .num_different_channels = 2, 106 .max_interfaces = 3, 107 .limits = iwl_mvm_limits, 108 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 109 }, 110 }; 111 112 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 113 /* 114 * Use the reserved field to indicate magic values. 115 * these values will only be used internally by the driver, 116 * and won't make it to the fw (reserved will be 0). 117 * BC_FILTER_MAGIC_IP - configure the val of this attribute to 118 * be the vif's ip address. in case there is not a single 119 * ip address (0, or more than 1), this attribute will 120 * be skipped. 121 * BC_FILTER_MAGIC_MAC - set the val of this attribute to 122 * the LSB bytes of the vif's mac address 123 */ 124 enum { 125 BC_FILTER_MAGIC_NONE = 0, 126 BC_FILTER_MAGIC_IP, 127 BC_FILTER_MAGIC_MAC, 128 }; 129 130 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { 131 { 132 /* arp */ 133 .discard = 0, 134 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, 135 .attrs = { 136 { 137 /* frame type - arp, hw type - ethernet */ 138 .offset_type = 139 BCAST_FILTER_OFFSET_PAYLOAD_START, 140 .offset = sizeof(rfc1042_header), 141 .val = cpu_to_be32(0x08060001), 142 .mask = cpu_to_be32(0xffffffff), 143 }, 144 { 145 /* arp dest ip */ 146 .offset_type = 147 BCAST_FILTER_OFFSET_PAYLOAD_START, 148 .offset = sizeof(rfc1042_header) + 2 + 149 sizeof(struct arphdr) + 150 ETH_ALEN + sizeof(__be32) + 151 ETH_ALEN, 152 .mask = cpu_to_be32(0xffffffff), 153 /* mark it as special field */ 154 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), 155 }, 156 }, 157 }, 158 { 159 /* dhcp offer bcast */ 160 .discard = 0, 161 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, 162 .attrs = { 163 { 164 /* udp dest port - 68 (bootp client)*/ 165 .offset_type = BCAST_FILTER_OFFSET_IP_END, 166 .offset = offsetof(struct udphdr, dest), 167 .val = cpu_to_be32(0x00440000), 168 .mask = cpu_to_be32(0xffff0000), 169 }, 170 { 171 /* dhcp - lsb bytes of client hw address */ 172 .offset_type = BCAST_FILTER_OFFSET_IP_END, 173 .offset = 38, 174 .mask = cpu_to_be32(0xffffffff), 175 /* mark it as special field */ 176 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), 177 }, 178 }, 179 }, 180 /* last filter must be empty */ 181 {}, 182 }; 183 #endif 184 185 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 186 .max_peers = IWL_MVM_TOF_MAX_APS, 187 .report_ap_tsf = 1, 188 .randomize_mac_addr = 1, 189 190 .ftm = { 191 .supported = 1, 192 .asap = 1, 193 .non_asap = 1, 194 .request_lci = 1, 195 .request_civicloc = 1, 196 .trigger_based = 1, 197 .non_trigger_based = 1, 198 .max_bursts_exponent = -1, /* all supported */ 199 .max_ftms_per_burst = 0, /* no limits */ 200 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 201 BIT(NL80211_CHAN_WIDTH_20) | 202 BIT(NL80211_CHAN_WIDTH_40) | 203 BIT(NL80211_CHAN_WIDTH_80), 204 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 205 BIT(NL80211_PREAMBLE_HT) | 206 BIT(NL80211_PREAMBLE_VHT) | 207 BIT(NL80211_PREAMBLE_HE), 208 }, 209 }; 210 211 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 212 enum set_key_cmd cmd, 213 struct ieee80211_vif *vif, 214 struct ieee80211_sta *sta, 215 struct ieee80211_key_conf *key); 216 217 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 218 { 219 int i; 220 221 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 222 for (i = 0; i < NUM_PHY_CTX; i++) { 223 mvm->phy_ctxts[i].id = i; 224 mvm->phy_ctxts[i].ref = 0; 225 } 226 } 227 228 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 229 const char *alpha2, 230 enum iwl_mcc_source src_id, 231 bool *changed) 232 { 233 struct ieee80211_regdomain *regd = NULL; 234 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 235 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 236 struct iwl_mcc_update_resp *resp; 237 238 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 239 240 lockdep_assert_held(&mvm->mutex); 241 242 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 243 if (IS_ERR_OR_NULL(resp)) { 244 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 245 PTR_ERR_OR_ZERO(resp)); 246 goto out; 247 } 248 249 if (changed) { 250 u32 status = le32_to_cpu(resp->status); 251 252 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 253 status == MCC_RESP_ILLEGAL); 254 } 255 256 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 257 __le32_to_cpu(resp->n_channels), 258 resp->channels, 259 __le16_to_cpu(resp->mcc), 260 __le16_to_cpu(resp->geo_info), 261 __le16_to_cpu(resp->cap)); 262 /* Store the return source id */ 263 src_id = resp->source_id; 264 kfree(resp); 265 if (IS_ERR_OR_NULL(regd)) { 266 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 267 PTR_ERR_OR_ZERO(regd)); 268 goto out; 269 } 270 271 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 272 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 273 mvm->lar_regdom_set = true; 274 mvm->mcc_src = src_id; 275 276 out: 277 return regd; 278 } 279 280 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 281 { 282 bool changed; 283 struct ieee80211_regdomain *regd; 284 285 if (!iwl_mvm_is_lar_supported(mvm)) 286 return; 287 288 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 289 if (!IS_ERR_OR_NULL(regd)) { 290 /* only update the regulatory core if changed */ 291 if (changed) 292 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 293 294 kfree(regd); 295 } 296 } 297 298 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 299 bool *changed) 300 { 301 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 302 iwl_mvm_is_wifi_mcc_supported(mvm) ? 303 MCC_SOURCE_GET_CURRENT : 304 MCC_SOURCE_OLD_FW, changed); 305 } 306 307 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) 308 { 309 enum iwl_mcc_source used_src; 310 struct ieee80211_regdomain *regd; 311 int ret; 312 bool changed; 313 const struct ieee80211_regdomain *r = 314 rtnl_dereference(mvm->hw->wiphy->regd); 315 316 if (!r) 317 return -ENOENT; 318 319 /* save the last source in case we overwrite it below */ 320 used_src = mvm->mcc_src; 321 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 322 /* Notify the firmware we support wifi location updates */ 323 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 324 if (!IS_ERR_OR_NULL(regd)) 325 kfree(regd); 326 } 327 328 /* Now set our last stored MCC and source */ 329 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 330 &changed); 331 if (IS_ERR_OR_NULL(regd)) 332 return -EIO; 333 334 /* update cfg80211 if the regdomain was changed */ 335 if (changed) 336 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd); 337 else 338 ret = 0; 339 340 kfree(regd); 341 return ret; 342 } 343 344 static const u8 he_if_types_ext_capa_sta[] = { 345 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 346 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 347 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF, 348 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 349 }; 350 351 static const struct wiphy_iftype_ext_capab he_iftypes_ext_capa[] = { 352 { 353 .iftype = NL80211_IFTYPE_STATION, 354 .extended_capabilities = he_if_types_ext_capa_sta, 355 .extended_capabilities_mask = he_if_types_ext_capa_sta, 356 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 357 }, 358 }; 359 360 static int 361 iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 362 { 363 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 364 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 365 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 366 return 0; 367 } 368 369 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 370 { 371 struct ieee80211_hw *hw = mvm->hw; 372 int num_mac, ret, i; 373 static const u32 mvm_ciphers[] = { 374 WLAN_CIPHER_SUITE_WEP40, 375 WLAN_CIPHER_SUITE_WEP104, 376 WLAN_CIPHER_SUITE_TKIP, 377 WLAN_CIPHER_SUITE_CCMP, 378 }; 379 #ifdef CONFIG_PM_SLEEP 380 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 381 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 382 #endif 383 384 /* Tell mac80211 our characteristics */ 385 ieee80211_hw_set(hw, SIGNAL_DBM); 386 ieee80211_hw_set(hw, SPECTRUM_MGMT); 387 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 388 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 389 ieee80211_hw_set(hw, SUPPORTS_PS); 390 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 391 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 392 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 393 ieee80211_hw_set(hw, CONNECTION_MONITOR); 394 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 395 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 396 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 397 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 398 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 399 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 400 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 401 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 402 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 403 /* 404 * On older devices, enabling TX A-MSDU occasionally leads to 405 * something getting messed up, the command read from the FIFO 406 * gets out of sync and isn't a TX command, so that we have an 407 * assert EDC. 408 * 409 * It's not clear where the bug is, but since we didn't used to 410 * support A-MSDU until moving the mac80211 iTXQs, just leave it 411 * for older devices. We also don't see this issue on any newer 412 * devices. 413 */ 414 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 415 ieee80211_hw_set(hw, TX_AMSDU); 416 ieee80211_hw_set(hw, TX_FRAG_LIST); 417 418 if (iwl_mvm_has_tlc_offload(mvm)) { 419 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 420 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 421 } 422 423 if (iwl_mvm_has_new_rx_api(mvm)) 424 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 425 426 if (fw_has_capa(&mvm->fw->ucode_capa, 427 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 428 ieee80211_hw_set(hw, AP_LINK_PS); 429 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 430 /* 431 * we absolutely need this for the new TX API since that comes 432 * with many more queues than the current code can deal with 433 * for station powersave 434 */ 435 return -EINVAL; 436 } 437 438 if (mvm->trans->num_rx_queues > 1) 439 ieee80211_hw_set(hw, USES_RSS); 440 441 if (mvm->trans->max_skb_frags) 442 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 443 444 hw->queues = IEEE80211_MAX_QUEUES; 445 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 446 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 447 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 448 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 449 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 450 451 hw->radiotap_timestamp.units_pos = 452 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 453 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 454 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 455 hw->radiotap_timestamp.accuracy = 22; 456 457 if (!iwl_mvm_has_tlc_offload(mvm)) 458 hw->rate_control_algorithm = RS_NAME; 459 460 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 461 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 462 hw->max_tx_fragments = mvm->trans->max_skb_frags; 463 464 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 465 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 466 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 467 hw->wiphy->cipher_suites = mvm->ciphers; 468 469 if (iwl_mvm_has_new_rx_api(mvm)) { 470 mvm->ciphers[hw->wiphy->n_cipher_suites] = 471 WLAN_CIPHER_SUITE_GCMP; 472 hw->wiphy->n_cipher_suites++; 473 mvm->ciphers[hw->wiphy->n_cipher_suites] = 474 WLAN_CIPHER_SUITE_GCMP_256; 475 hw->wiphy->n_cipher_suites++; 476 } 477 478 if (iwlwifi_mod_params.swcrypto) 479 IWL_ERR(mvm, 480 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 481 if (!iwlwifi_mod_params.bt_coex_active) 482 IWL_ERR(mvm, 483 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 484 485 ieee80211_hw_set(hw, MFP_CAPABLE); 486 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 487 hw->wiphy->n_cipher_suites++; 488 if (iwl_mvm_has_new_rx_api(mvm)) { 489 mvm->ciphers[hw->wiphy->n_cipher_suites] = 490 WLAN_CIPHER_SUITE_BIP_GMAC_128; 491 hw->wiphy->n_cipher_suites++; 492 mvm->ciphers[hw->wiphy->n_cipher_suites] = 493 WLAN_CIPHER_SUITE_BIP_GMAC_256; 494 hw->wiphy->n_cipher_suites++; 495 } 496 497 /* currently FW API supports only one optional cipher scheme */ 498 if (mvm->fw->cs[0].cipher) { 499 const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0]; 500 struct ieee80211_cipher_scheme *cs = &mvm->cs[0]; 501 502 mvm->hw->n_cipher_schemes = 1; 503 504 cs->cipher = le32_to_cpu(fwcs->cipher); 505 cs->iftype = BIT(NL80211_IFTYPE_STATION); 506 cs->hdr_len = fwcs->hdr_len; 507 cs->pn_len = fwcs->pn_len; 508 cs->pn_off = fwcs->pn_off; 509 cs->key_idx_off = fwcs->key_idx_off; 510 cs->key_idx_mask = fwcs->key_idx_mask; 511 cs->key_idx_shift = fwcs->key_idx_shift; 512 cs->mic_len = fwcs->mic_len; 513 514 mvm->hw->cipher_schemes = mvm->cs; 515 mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher; 516 hw->wiphy->n_cipher_suites++; 517 } 518 519 if (fw_has_capa(&mvm->fw->ucode_capa, 520 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 521 wiphy_ext_feature_set(hw->wiphy, 522 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 523 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 524 } 525 526 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 527 hw->wiphy->features |= 528 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 529 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 530 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 531 532 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 533 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 534 hw->chanctx_data_size = sizeof(u16); 535 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 536 537 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 538 BIT(NL80211_IFTYPE_P2P_CLIENT) | 539 BIT(NL80211_IFTYPE_AP) | 540 BIT(NL80211_IFTYPE_P2P_GO) | 541 BIT(NL80211_IFTYPE_P2P_DEVICE) | 542 BIT(NL80211_IFTYPE_ADHOC); 543 544 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 545 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 546 547 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 548 * the hw, preventing us to control which key(id) to use per MPDU. 549 * Till that's fixed we can't use Extended Key ID for the newer cards. 550 */ 551 if (!iwl_mvm_has_new_tx_api(mvm)) 552 wiphy_ext_feature_set(hw->wiphy, 553 NL80211_EXT_FEATURE_EXT_KEY_ID); 554 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 555 556 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 557 if (iwl_mvm_is_lar_supported(mvm)) 558 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 559 else 560 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 561 REGULATORY_DISABLE_BEACON_HINTS; 562 563 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 564 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 565 566 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 567 hw->wiphy->n_iface_combinations = 568 ARRAY_SIZE(iwl_mvm_iface_combinations); 569 570 hw->wiphy->max_remain_on_channel_duration = 10000; 571 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 572 573 /* Extract MAC address */ 574 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 575 hw->wiphy->addresses = mvm->addresses; 576 hw->wiphy->n_addresses = 1; 577 578 /* Extract additional MAC addresses if available */ 579 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 580 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 581 582 for (i = 1; i < num_mac; i++) { 583 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 584 ETH_ALEN); 585 mvm->addresses[i].addr[5]++; 586 hw->wiphy->n_addresses++; 587 } 588 589 iwl_mvm_reset_phy_ctxts(mvm); 590 591 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 592 593 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 594 595 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 596 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 597 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 598 599 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 600 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 601 else 602 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 603 604 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 605 hw->wiphy->bands[NL80211_BAND_2GHZ] = 606 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 607 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 608 hw->wiphy->bands[NL80211_BAND_5GHZ] = 609 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 610 611 if (fw_has_capa(&mvm->fw->ucode_capa, 612 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 613 fw_has_api(&mvm->fw->ucode_capa, 614 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 615 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 616 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 617 } 618 619 hw->wiphy->hw_version = mvm->trans->hw_id; 620 621 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 622 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 623 else 624 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 625 626 hw->wiphy->max_sched_scan_reqs = 1; 627 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 628 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 629 /* we create the 802.11 header and zero length SSID IE. */ 630 hw->wiphy->max_sched_scan_ie_len = 631 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 632 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 633 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 634 635 /* 636 * the firmware uses u8 for num of iterations, but 0xff is saved for 637 * infinite loop, so the maximum number of iterations is actually 254. 638 */ 639 hw->wiphy->max_sched_scan_plan_iterations = 254; 640 641 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 642 NL80211_FEATURE_LOW_PRIORITY_SCAN | 643 NL80211_FEATURE_P2P_GO_OPPPS | 644 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 645 NL80211_FEATURE_DYNAMIC_SMPS | 646 NL80211_FEATURE_STATIC_SMPS | 647 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 648 649 if (fw_has_capa(&mvm->fw->ucode_capa, 650 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 651 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 652 if (fw_has_capa(&mvm->fw->ucode_capa, 653 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 654 hw->wiphy->features |= NL80211_FEATURE_QUIET; 655 656 if (fw_has_capa(&mvm->fw->ucode_capa, 657 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 658 hw->wiphy->features |= 659 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 660 661 if (fw_has_capa(&mvm->fw->ucode_capa, 662 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 663 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 664 665 if (fw_has_api(&mvm->fw->ucode_capa, 666 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 667 wiphy_ext_feature_set(hw->wiphy, 668 NL80211_EXT_FEATURE_SCAN_START_TIME); 669 wiphy_ext_feature_set(hw->wiphy, 670 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 671 wiphy_ext_feature_set(hw->wiphy, 672 NL80211_EXT_FEATURE_SET_SCAN_DWELL); 673 } 674 675 if (iwl_mvm_is_oce_supported(mvm)) { 676 wiphy_ext_feature_set(hw->wiphy, 677 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 678 wiphy_ext_feature_set(hw->wiphy, 679 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 680 wiphy_ext_feature_set(hw->wiphy, 681 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 682 wiphy_ext_feature_set(hw->wiphy, 683 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 684 } 685 686 if (mvm->nvm_data->sku_cap_11ax_enable && 687 !iwlwifi_mod_params.disable_11ax) { 688 hw->wiphy->iftype_ext_capab = he_iftypes_ext_capa; 689 hw->wiphy->num_iftype_ext_capab = 690 ARRAY_SIZE(he_iftypes_ext_capa); 691 692 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 693 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 694 } 695 696 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 697 698 #ifdef CONFIG_PM_SLEEP 699 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 700 mvm->trans->ops->d3_suspend && 701 mvm->trans->ops->d3_resume && 702 device_can_wakeup(mvm->trans->dev)) { 703 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 704 WIPHY_WOWLAN_DISCONNECT | 705 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 706 WIPHY_WOWLAN_RFKILL_RELEASE | 707 WIPHY_WOWLAN_NET_DETECT; 708 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 709 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 710 WIPHY_WOWLAN_4WAY_HANDSHAKE; 711 712 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 713 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 714 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 715 mvm->wowlan.max_nd_match_sets = 716 iwl_umac_scan_get_max_profiles(mvm->fw); 717 hw->wiphy->wowlan = &mvm->wowlan; 718 } 719 #endif 720 721 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 722 /* assign default bcast filtering configuration */ 723 mvm->bcast_filters = iwl_mvm_default_bcast_filters; 724 #endif 725 726 ret = iwl_mvm_leds_init(mvm); 727 if (ret) 728 return ret; 729 730 if (fw_has_capa(&mvm->fw->ucode_capa, 731 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 732 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 733 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 734 ieee80211_hw_set(hw, TDLS_WIDER_BW); 735 } 736 737 if (fw_has_capa(&mvm->fw->ucode_capa, 738 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 739 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 740 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 741 } 742 743 hw->netdev_features |= mvm->cfg->features; 744 if (!iwl_mvm_is_csum_supported(mvm)) { 745 hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS | 746 NETIF_F_RXCSUM); 747 /* We may support SW TX CSUM */ 748 if (IWL_MVM_SW_TX_CSUM_OFFLOAD) 749 hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS; 750 } 751 752 if (mvm->cfg->vht_mu_mimo_supported) 753 wiphy_ext_feature_set(hw->wiphy, 754 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 755 756 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 757 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 758 759 ret = ieee80211_register_hw(mvm->hw); 760 if (ret) { 761 iwl_mvm_leds_exit(mvm); 762 } 763 764 return ret; 765 } 766 767 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 768 struct ieee80211_sta *sta) 769 { 770 if (likely(sta)) { 771 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 772 return; 773 } else { 774 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 775 return; 776 } 777 778 ieee80211_free_txskb(mvm->hw, skb); 779 } 780 781 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 782 struct ieee80211_tx_control *control, 783 struct sk_buff *skb) 784 { 785 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 786 struct ieee80211_sta *sta = control->sta; 787 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 788 struct ieee80211_hdr *hdr = (void *)skb->data; 789 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 790 IEEE80211_TX_CTL_TX_OFFCHAN; 791 792 if (iwl_mvm_is_radio_killed(mvm)) { 793 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 794 goto drop; 795 } 796 797 if (offchannel && 798 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 799 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 800 goto drop; 801 802 /* treat non-bufferable MMPDUs on AP interfaces as broadcast */ 803 if ((info->control.vif->type == NL80211_IFTYPE_AP || 804 info->control.vif->type == NL80211_IFTYPE_ADHOC) && 805 ieee80211_is_mgmt(hdr->frame_control) && 806 !ieee80211_is_bufferable_mmpdu(hdr->frame_control)) 807 sta = NULL; 808 809 /* If there is no sta, and it's not offchannel - send through AP */ 810 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 811 !offchannel) { 812 struct iwl_mvm_vif *mvmvif = 813 iwl_mvm_vif_from_mac80211(info->control.vif); 814 u8 ap_sta_id = READ_ONCE(mvmvif->ap_sta_id); 815 816 if (ap_sta_id < IWL_MVM_STATION_COUNT) { 817 /* mac80211 holds rcu read lock */ 818 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 819 if (IS_ERR_OR_NULL(sta)) 820 goto drop; 821 } 822 } 823 824 iwl_mvm_tx_skb(mvm, skb, sta); 825 return; 826 drop: 827 ieee80211_free_txskb(hw, skb); 828 } 829 830 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 831 { 832 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 833 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 834 struct sk_buff *skb = NULL; 835 836 /* 837 * No need for threads to be pending here, they can leave the first 838 * taker all the work. 839 * 840 * mvmtxq->tx_request logic: 841 * 842 * If 0, no one is currently TXing, set to 1 to indicate current thread 843 * will now start TX and other threads should quit. 844 * 845 * If 1, another thread is currently TXing, set to 2 to indicate to 846 * that thread that there was another request. Since that request may 847 * have raced with the check whether the queue is empty, the TXing 848 * thread should check the queue's status one more time before leaving. 849 * This check is done in order to not leave any TX hanging in the queue 850 * until the next TX invocation (which may not even happen). 851 * 852 * If 2, another thread is currently TXing, and it will already double 853 * check the queue, so do nothing. 854 */ 855 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 856 return; 857 858 rcu_read_lock(); 859 do { 860 while (likely(!mvmtxq->stopped && 861 (mvm->trans->system_pm_mode == 862 IWL_PLAT_PM_MODE_DISABLED))) { 863 skb = ieee80211_tx_dequeue(hw, txq); 864 865 if (!skb) { 866 if (txq->sta) 867 IWL_DEBUG_TX(mvm, 868 "TXQ of sta %pM tid %d is now empty\n", 869 txq->sta->addr, 870 txq->tid); 871 break; 872 } 873 874 iwl_mvm_tx_skb(mvm, skb, txq->sta); 875 } 876 } while (atomic_dec_return(&mvmtxq->tx_request)); 877 rcu_read_unlock(); 878 } 879 880 static void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 881 struct ieee80211_txq *txq) 882 { 883 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 884 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 885 886 /* 887 * Please note that racing is handled very carefully here: 888 * mvmtxq->txq_id is updated during allocation, and mvmtxq->list is 889 * deleted afterwards. 890 * This means that if: 891 * mvmtxq->txq_id != INVALID_QUEUE && list_empty(&mvmtxq->list): 892 * queue is allocated and we can TX. 893 * mvmtxq->txq_id != INVALID_QUEUE && !list_empty(&mvmtxq->list): 894 * a race, should defer the frame. 895 * mvmtxq->txq_id == INVALID_QUEUE && list_empty(&mvmtxq->list): 896 * need to allocate the queue and defer the frame. 897 * mvmtxq->txq_id == INVALID_QUEUE && !list_empty(&mvmtxq->list): 898 * queue is already scheduled for allocation, no need to allocate, 899 * should defer the frame. 900 */ 901 902 /* If the queue is allocated TX and return. */ 903 if (!txq->sta || mvmtxq->txq_id != IWL_MVM_INVALID_QUEUE) { 904 /* 905 * Check that list is empty to avoid a race where txq_id is 906 * already updated, but the queue allocation work wasn't 907 * finished 908 */ 909 if (unlikely(txq->sta && !list_empty(&mvmtxq->list))) 910 return; 911 912 iwl_mvm_mac_itxq_xmit(hw, txq); 913 return; 914 } 915 916 /* The list is being deleted only after the queue is fully allocated. */ 917 if (!list_empty(&mvmtxq->list)) 918 return; 919 920 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 921 schedule_work(&mvm->add_stream_wk); 922 } 923 924 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 925 do { \ 926 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 927 break; \ 928 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 929 } while (0) 930 931 static void 932 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 933 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 934 enum ieee80211_ampdu_mlme_action action) 935 { 936 struct iwl_fw_dbg_trigger_tlv *trig; 937 struct iwl_fw_dbg_trigger_ba *ba_trig; 938 939 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 940 FW_DBG_TRIGGER_BA); 941 if (!trig) 942 return; 943 944 ba_trig = (void *)trig->data; 945 946 switch (action) { 947 case IEEE80211_AMPDU_TX_OPERATIONAL: { 948 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 949 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 950 951 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 952 "TX AGG START: MAC %pM tid %d ssn %d\n", 953 sta->addr, tid, tid_data->ssn); 954 break; 955 } 956 case IEEE80211_AMPDU_TX_STOP_CONT: 957 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 958 "TX AGG STOP: MAC %pM tid %d\n", 959 sta->addr, tid); 960 break; 961 case IEEE80211_AMPDU_RX_START: 962 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 963 "RX AGG START: MAC %pM tid %d ssn %d\n", 964 sta->addr, tid, rx_ba_ssn); 965 break; 966 case IEEE80211_AMPDU_RX_STOP: 967 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 968 "RX AGG STOP: MAC %pM tid %d\n", 969 sta->addr, tid); 970 break; 971 default: 972 break; 973 } 974 } 975 976 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 977 struct ieee80211_vif *vif, 978 struct ieee80211_ampdu_params *params) 979 { 980 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 981 int ret; 982 struct ieee80211_sta *sta = params->sta; 983 enum ieee80211_ampdu_mlme_action action = params->action; 984 u16 tid = params->tid; 985 u16 *ssn = ¶ms->ssn; 986 u16 buf_size = params->buf_size; 987 bool amsdu = params->amsdu; 988 u16 timeout = params->timeout; 989 990 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 991 sta->addr, tid, action); 992 993 if (!(mvm->nvm_data->sku_cap_11n_enable)) 994 return -EACCES; 995 996 mutex_lock(&mvm->mutex); 997 998 switch (action) { 999 case IEEE80211_AMPDU_RX_START: 1000 if (iwl_mvm_vif_from_mac80211(vif)->ap_sta_id == 1001 iwl_mvm_sta_from_mac80211(sta)->sta_id) { 1002 struct iwl_mvm_vif *mvmvif; 1003 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 1004 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 1005 1006 mdata->opened_rx_ba_sessions = true; 1007 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1008 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 1009 } 1010 if (!iwl_enable_rx_ampdu()) { 1011 ret = -EINVAL; 1012 break; 1013 } 1014 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 1015 timeout); 1016 break; 1017 case IEEE80211_AMPDU_RX_STOP: 1018 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 1019 timeout); 1020 break; 1021 case IEEE80211_AMPDU_TX_START: 1022 if (!iwl_enable_tx_ampdu()) { 1023 ret = -EINVAL; 1024 break; 1025 } 1026 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1027 break; 1028 case IEEE80211_AMPDU_TX_STOP_CONT: 1029 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1030 break; 1031 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1032 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1033 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1034 break; 1035 case IEEE80211_AMPDU_TX_OPERATIONAL: 1036 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1037 buf_size, amsdu); 1038 break; 1039 default: 1040 WARN_ON_ONCE(1); 1041 ret = -EINVAL; 1042 break; 1043 } 1044 1045 if (!ret) { 1046 u16 rx_ba_ssn = 0; 1047 1048 if (action == IEEE80211_AMPDU_RX_START) 1049 rx_ba_ssn = *ssn; 1050 1051 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1052 rx_ba_ssn, action); 1053 } 1054 mutex_unlock(&mvm->mutex); 1055 1056 return ret; 1057 } 1058 1059 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1060 struct ieee80211_vif *vif) 1061 { 1062 struct iwl_mvm *mvm = data; 1063 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1064 1065 mvmvif->uploaded = false; 1066 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1067 1068 spin_lock_bh(&mvm->time_event_lock); 1069 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1070 spin_unlock_bh(&mvm->time_event_lock); 1071 1072 mvmvif->phy_ctxt = NULL; 1073 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1074 memset(&mvmvif->probe_resp_data, 0, sizeof(mvmvif->probe_resp_data)); 1075 } 1076 1077 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1078 { 1079 iwl_mvm_stop_device(mvm); 1080 1081 mvm->cur_aid = 0; 1082 1083 mvm->scan_status = 0; 1084 mvm->ps_disabled = false; 1085 mvm->rfkill_safe_init_done = false; 1086 1087 /* just in case one was running */ 1088 iwl_mvm_cleanup_roc_te(mvm); 1089 ieee80211_remain_on_channel_expired(mvm->hw); 1090 1091 iwl_mvm_ftm_restart(mvm); 1092 1093 /* 1094 * cleanup all interfaces, even inactive ones, as some might have 1095 * gone down during the HW restart 1096 */ 1097 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1098 1099 mvm->p2p_device_vif = NULL; 1100 1101 iwl_mvm_reset_phy_ctxts(mvm); 1102 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1103 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1104 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1105 1106 ieee80211_wake_queues(mvm->hw); 1107 1108 mvm->vif_count = 0; 1109 mvm->rx_ba_sessions = 0; 1110 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1111 mvm->monitor_on = false; 1112 1113 /* keep statistics ticking */ 1114 iwl_mvm_accu_radio_stats(mvm); 1115 } 1116 1117 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1118 { 1119 int ret; 1120 1121 lockdep_assert_held(&mvm->mutex); 1122 1123 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1124 /* 1125 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1126 * so later code will - from now on - see that we're doing it. 1127 */ 1128 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1129 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1130 /* Clean up some internal and mac80211 state on restart */ 1131 iwl_mvm_restart_cleanup(mvm); 1132 } 1133 ret = iwl_mvm_up(mvm); 1134 1135 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1136 NULL); 1137 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1138 NULL); 1139 1140 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1141 /* Something went wrong - we need to finish some cleanup 1142 * that normally iwl_mvm_mac_restart_complete() below 1143 * would do. 1144 */ 1145 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1146 } 1147 1148 return ret; 1149 } 1150 1151 static int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1152 { 1153 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1154 int ret; 1155 1156 mutex_lock(&mvm->mutex); 1157 ret = __iwl_mvm_mac_start(mvm); 1158 mutex_unlock(&mvm->mutex); 1159 1160 return ret; 1161 } 1162 1163 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1164 { 1165 int ret; 1166 1167 mutex_lock(&mvm->mutex); 1168 1169 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1170 1171 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1172 if (ret) 1173 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1174 ret); 1175 1176 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1177 1178 /* 1179 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1180 * of packets the FW sent out, so we must reconnect. 1181 */ 1182 iwl_mvm_teardown_tdls_peers(mvm); 1183 1184 mutex_unlock(&mvm->mutex); 1185 } 1186 1187 static void 1188 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1189 enum ieee80211_reconfig_type reconfig_type) 1190 { 1191 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1192 1193 switch (reconfig_type) { 1194 case IEEE80211_RECONFIG_TYPE_RESTART: 1195 iwl_mvm_restart_complete(mvm); 1196 break; 1197 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1198 break; 1199 } 1200 } 1201 1202 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1203 { 1204 lockdep_assert_held(&mvm->mutex); 1205 1206 /* firmware counters are obviously reset now, but we shouldn't 1207 * partially track so also clear the fw_reset_accu counters. 1208 */ 1209 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1210 1211 /* async_handlers_wk is now blocked */ 1212 1213 /* 1214 * The work item could be running or queued if the 1215 * ROC time event stops just as we get here. 1216 */ 1217 flush_work(&mvm->roc_done_wk); 1218 1219 iwl_mvm_rm_aux_sta(mvm); 1220 1221 iwl_mvm_stop_device(mvm); 1222 1223 iwl_mvm_async_handlers_purge(mvm); 1224 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1225 1226 /* 1227 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1228 * hw (as restart_complete() won't be called in this case) and mac80211 1229 * won't execute the restart. 1230 * But make sure to cleanup interfaces that have gone down before/during 1231 * HW restart was requested. 1232 */ 1233 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1234 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1235 &mvm->status)) 1236 ieee80211_iterate_interfaces(mvm->hw, 0, 1237 iwl_mvm_cleanup_iterator, mvm); 1238 1239 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1240 * make sure there's nothing left there and warn if any is found. 1241 */ 1242 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1243 int i; 1244 1245 for (i = 0; i < mvm->max_scans; i++) { 1246 if (WARN_ONCE(mvm->scan_uid_status[i], 1247 "UMAC scan UID %d status was not cleaned\n", 1248 i)) 1249 mvm->scan_uid_status[i] = 0; 1250 } 1251 } 1252 } 1253 1254 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1255 { 1256 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1257 1258 flush_work(&mvm->async_handlers_wk); 1259 flush_work(&mvm->add_stream_wk); 1260 1261 /* 1262 * Lock and clear the firmware running bit here already, so that 1263 * new commands coming in elsewhere, e.g. from debugfs, will not 1264 * be able to proceed. This is important here because one of those 1265 * debugfs files causes the firmware dump to be triggered, and if we 1266 * don't stop debugfs accesses before canceling that it could be 1267 * retriggered after we flush it but before we've cleared the bit. 1268 */ 1269 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1270 1271 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1272 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1273 1274 mutex_lock(&mvm->mutex); 1275 __iwl_mvm_mac_stop(mvm); 1276 mutex_unlock(&mvm->mutex); 1277 1278 /* 1279 * The worker might have been waiting for the mutex, let it run and 1280 * discover that its list is now empty. 1281 */ 1282 cancel_work_sync(&mvm->async_handlers_wk); 1283 } 1284 1285 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1286 { 1287 u16 i; 1288 1289 lockdep_assert_held(&mvm->mutex); 1290 1291 for (i = 0; i < NUM_PHY_CTX; i++) 1292 if (!mvm->phy_ctxts[i].ref) 1293 return &mvm->phy_ctxts[i]; 1294 1295 IWL_ERR(mvm, "No available PHY context\n"); 1296 return NULL; 1297 } 1298 1299 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1300 s16 tx_power) 1301 { 1302 int len; 1303 union { 1304 struct iwl_dev_tx_power_cmd v5; 1305 struct iwl_dev_tx_power_cmd_v4 v4; 1306 } cmd = { 1307 .v5.v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1308 .v5.v3.mac_context_id = 1309 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1310 .v5.v3.pwr_restriction = cpu_to_le16(8 * tx_power), 1311 }; 1312 1313 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1314 cmd.v5.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1315 1316 if (fw_has_api(&mvm->fw->ucode_capa, 1317 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1318 len = sizeof(cmd.v5); 1319 else if (fw_has_capa(&mvm->fw->ucode_capa, 1320 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1321 len = sizeof(cmd.v4); 1322 else 1323 len = sizeof(cmd.v4.v3); 1324 1325 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); 1326 } 1327 1328 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1329 struct ieee80211_vif *vif) 1330 { 1331 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1332 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1333 int ret; 1334 1335 mutex_lock(&mvm->mutex); 1336 1337 if (mvmvif->csa_failed) { 1338 mvmvif->csa_failed = false; 1339 ret = -EIO; 1340 goto out_unlock; 1341 } 1342 1343 if (vif->type == NL80211_IFTYPE_STATION) { 1344 struct iwl_mvm_sta *mvmsta; 1345 1346 mvmvif->csa_bcn_pending = false; 1347 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 1348 mvmvif->ap_sta_id); 1349 1350 if (WARN_ON(!mvmsta)) { 1351 ret = -EIO; 1352 goto out_unlock; 1353 } 1354 1355 if (!fw_has_capa(&mvm->fw->ucode_capa, 1356 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1357 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1358 1359 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1360 1361 if (!fw_has_capa(&mvm->fw->ucode_capa, 1362 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1363 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1364 if (ret) 1365 goto out_unlock; 1366 1367 iwl_mvm_stop_session_protection(mvm, vif); 1368 } 1369 } 1370 1371 mvmvif->ps_disabled = false; 1372 1373 ret = iwl_mvm_power_update_ps(mvm); 1374 1375 out_unlock: 1376 mutex_unlock(&mvm->mutex); 1377 1378 return ret; 1379 } 1380 1381 static void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1382 struct ieee80211_vif *vif) 1383 { 1384 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1385 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1386 struct iwl_chan_switch_te_cmd cmd = { 1387 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1388 mvmvif->color)), 1389 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1390 }; 1391 1392 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1393 1394 mutex_lock(&mvm->mutex); 1395 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1396 WIDE_ID(MAC_CONF_GROUP, 1397 CHANNEL_SWITCH_TIME_EVENT_CMD), 1398 0, sizeof(cmd), &cmd)); 1399 mutex_unlock(&mvm->mutex); 1400 1401 WARN_ON(iwl_mvm_post_channel_switch(hw, vif)); 1402 } 1403 1404 static void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1405 { 1406 struct iwl_mvm *mvm; 1407 struct iwl_mvm_vif *mvmvif; 1408 struct ieee80211_vif *vif; 1409 1410 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1411 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1412 mvm = mvmvif->mvm; 1413 1414 iwl_mvm_abort_channel_switch(mvm->hw, vif); 1415 ieee80211_chswitch_done(vif, false); 1416 } 1417 1418 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1419 struct ieee80211_vif *vif) 1420 { 1421 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1422 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1423 int ret; 1424 1425 mvmvif->mvm = mvm; 1426 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1427 1428 /* 1429 * Not much to do here. The stack will not allow interface 1430 * types or combinations that we didn't advertise, so we 1431 * don't really have to check the types. 1432 */ 1433 1434 mutex_lock(&mvm->mutex); 1435 1436 /* make sure that beacon statistics don't go backwards with FW reset */ 1437 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1438 mvmvif->beacon_stats.accu_num_beacons += 1439 mvmvif->beacon_stats.num_beacons; 1440 1441 /* Allocate resources for the MAC context, and add it to the fw */ 1442 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1443 if (ret) 1444 goto out_unlock; 1445 1446 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1447 1448 /* Counting number of interfaces is needed for legacy PM */ 1449 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1450 mvm->vif_count++; 1451 1452 /* 1453 * The AP binding flow can be done only after the beacon 1454 * template is configured (which happens only in the mac80211 1455 * start_ap() flow), and adding the broadcast station can happen 1456 * only after the binding. 1457 * In addition, since modifying the MAC before adding a bcast 1458 * station is not allowed by the FW, delay the adding of MAC context to 1459 * the point where we can also add the bcast station. 1460 * In short: there's not much we can do at this point, other than 1461 * allocating resources :) 1462 */ 1463 if (vif->type == NL80211_IFTYPE_AP || 1464 vif->type == NL80211_IFTYPE_ADHOC) { 1465 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1466 if (ret) { 1467 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1468 goto out_release; 1469 } 1470 1471 /* 1472 * Only queue for this station is the mcast queue, 1473 * which shouldn't be in TFD mask anyway 1474 */ 1475 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta, 1476 0, vif->type, 1477 IWL_STA_MULTICAST); 1478 if (ret) 1479 goto out_release; 1480 1481 iwl_mvm_vif_dbgfs_register(mvm, vif); 1482 goto out_unlock; 1483 } 1484 1485 mvmvif->features |= hw->netdev_features; 1486 1487 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1488 if (ret) 1489 goto out_release; 1490 1491 ret = iwl_mvm_power_update_mac(mvm); 1492 if (ret) 1493 goto out_remove_mac; 1494 1495 /* beacon filtering */ 1496 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1497 if (ret) 1498 goto out_remove_mac; 1499 1500 if (!mvm->bf_allowed_vif && 1501 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1502 mvm->bf_allowed_vif = mvmvif; 1503 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1504 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1505 } 1506 1507 /* 1508 * P2P_DEVICE interface does not have a channel context assigned to it, 1509 * so a dedicated PHY context is allocated to it and the corresponding 1510 * MAC context is bound to it at this stage. 1511 */ 1512 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1513 1514 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1515 if (!mvmvif->phy_ctxt) { 1516 ret = -ENOSPC; 1517 goto out_free_bf; 1518 } 1519 1520 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 1521 ret = iwl_mvm_binding_add_vif(mvm, vif); 1522 if (ret) 1523 goto out_unref_phy; 1524 1525 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif); 1526 if (ret) 1527 goto out_unbind; 1528 1529 /* Save a pointer to p2p device vif, so it can later be used to 1530 * update the p2p device MAC when a GO is started/stopped */ 1531 mvm->p2p_device_vif = vif; 1532 } 1533 1534 iwl_mvm_tcm_add_vif(mvm, vif); 1535 INIT_DELAYED_WORK(&mvmvif->csa_work, 1536 iwl_mvm_channel_switch_disconnect_wk); 1537 1538 if (vif->type == NL80211_IFTYPE_MONITOR) 1539 mvm->monitor_on = true; 1540 1541 iwl_mvm_vif_dbgfs_register(mvm, vif); 1542 goto out_unlock; 1543 1544 out_unbind: 1545 iwl_mvm_binding_remove_vif(mvm, vif); 1546 out_unref_phy: 1547 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1548 out_free_bf: 1549 if (mvm->bf_allowed_vif == mvmvif) { 1550 mvm->bf_allowed_vif = NULL; 1551 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1552 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1553 } 1554 out_remove_mac: 1555 mvmvif->phy_ctxt = NULL; 1556 iwl_mvm_mac_ctxt_remove(mvm, vif); 1557 out_release: 1558 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1559 mvm->vif_count--; 1560 out_unlock: 1561 mutex_unlock(&mvm->mutex); 1562 1563 return ret; 1564 } 1565 1566 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1567 struct ieee80211_vif *vif) 1568 { 1569 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1570 /* 1571 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1572 * We assume here that all the packets sent to the OFFCHANNEL 1573 * queue are sent in ROC session. 1574 */ 1575 flush_work(&mvm->roc_done_wk); 1576 } 1577 } 1578 1579 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1580 struct ieee80211_vif *vif) 1581 { 1582 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1583 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1584 struct iwl_probe_resp_data *probe_data; 1585 1586 iwl_mvm_prepare_mac_removal(mvm, vif); 1587 1588 if (!(vif->type == NL80211_IFTYPE_AP || 1589 vif->type == NL80211_IFTYPE_ADHOC)) 1590 iwl_mvm_tcm_rm_vif(mvm, vif); 1591 1592 mutex_lock(&mvm->mutex); 1593 1594 probe_data = rcu_dereference_protected(mvmvif->probe_resp_data, 1595 lockdep_is_held(&mvm->mutex)); 1596 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1597 if (probe_data) 1598 kfree_rcu(probe_data, rcu_head); 1599 1600 if (mvm->bf_allowed_vif == mvmvif) { 1601 mvm->bf_allowed_vif = NULL; 1602 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1603 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1604 } 1605 1606 if (vif->bss_conf.ftm_responder) 1607 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1608 1609 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1610 1611 /* 1612 * For AP/GO interface, the tear down of the resources allocated to the 1613 * interface is be handled as part of the stop_ap flow. 1614 */ 1615 if (vif->type == NL80211_IFTYPE_AP || 1616 vif->type == NL80211_IFTYPE_ADHOC) { 1617 #ifdef CONFIG_NL80211_TESTMODE 1618 if (vif == mvm->noa_vif) { 1619 mvm->noa_vif = NULL; 1620 mvm->noa_duration = 0; 1621 } 1622 #endif 1623 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta); 1624 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1625 goto out_release; 1626 } 1627 1628 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1629 mvm->p2p_device_vif = NULL; 1630 iwl_mvm_rm_p2p_bcast_sta(mvm, vif); 1631 iwl_mvm_binding_remove_vif(mvm, vif); 1632 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1633 mvmvif->phy_ctxt = NULL; 1634 } 1635 1636 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) 1637 mvm->vif_count--; 1638 1639 iwl_mvm_power_update_mac(mvm); 1640 iwl_mvm_mac_ctxt_remove(mvm, vif); 1641 1642 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1643 1644 if (vif->type == NL80211_IFTYPE_MONITOR) 1645 mvm->monitor_on = false; 1646 1647 out_release: 1648 mutex_unlock(&mvm->mutex); 1649 } 1650 1651 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) 1652 { 1653 return 0; 1654 } 1655 1656 struct iwl_mvm_mc_iter_data { 1657 struct iwl_mvm *mvm; 1658 int port_id; 1659 }; 1660 1661 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1662 struct ieee80211_vif *vif) 1663 { 1664 struct iwl_mvm_mc_iter_data *data = _data; 1665 struct iwl_mvm *mvm = data->mvm; 1666 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1667 struct iwl_host_cmd hcmd = { 1668 .id = MCAST_FILTER_CMD, 1669 .flags = CMD_ASYNC, 1670 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1671 }; 1672 int ret, len; 1673 1674 /* if we don't have free ports, mcast frames will be dropped */ 1675 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1676 return; 1677 1678 if (vif->type != NL80211_IFTYPE_STATION || 1679 !vif->bss_conf.assoc) 1680 return; 1681 1682 cmd->port_id = data->port_id++; 1683 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1684 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1685 1686 hcmd.len[0] = len; 1687 hcmd.data[0] = cmd; 1688 1689 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1690 if (ret) 1691 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1692 } 1693 1694 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1695 { 1696 struct iwl_mvm_mc_iter_data iter_data = { 1697 .mvm = mvm, 1698 }; 1699 1700 lockdep_assert_held(&mvm->mutex); 1701 1702 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1703 return; 1704 1705 ieee80211_iterate_active_interfaces_atomic( 1706 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1707 iwl_mvm_mc_iface_iterator, &iter_data); 1708 } 1709 1710 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1711 struct netdev_hw_addr_list *mc_list) 1712 { 1713 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1714 struct iwl_mcast_filter_cmd *cmd; 1715 struct netdev_hw_addr *addr; 1716 int addr_count; 1717 bool pass_all; 1718 int len; 1719 1720 addr_count = netdev_hw_addr_list_count(mc_list); 1721 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1722 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1723 if (pass_all) 1724 addr_count = 0; 1725 1726 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1727 cmd = kzalloc(len, GFP_ATOMIC); 1728 if (!cmd) 1729 return 0; 1730 1731 if (pass_all) { 1732 cmd->pass_all = 1; 1733 return (u64)(unsigned long)cmd; 1734 } 1735 1736 netdev_hw_addr_list_for_each(addr, mc_list) { 1737 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1738 cmd->count, addr->addr); 1739 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1740 addr->addr, ETH_ALEN); 1741 cmd->count++; 1742 } 1743 1744 return (u64)(unsigned long)cmd; 1745 } 1746 1747 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1748 unsigned int changed_flags, 1749 unsigned int *total_flags, 1750 u64 multicast) 1751 { 1752 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1753 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1754 1755 mutex_lock(&mvm->mutex); 1756 1757 /* replace previous configuration */ 1758 kfree(mvm->mcast_filter_cmd); 1759 mvm->mcast_filter_cmd = cmd; 1760 1761 if (!cmd) 1762 goto out; 1763 1764 if (changed_flags & FIF_ALLMULTI) 1765 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1766 1767 if (cmd->pass_all) 1768 cmd->count = 0; 1769 1770 iwl_mvm_recalc_multicast(mvm); 1771 out: 1772 mutex_unlock(&mvm->mutex); 1773 *total_flags = 0; 1774 } 1775 1776 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1777 struct ieee80211_vif *vif, 1778 unsigned int filter_flags, 1779 unsigned int changed_flags) 1780 { 1781 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1782 1783 /* We support only filter for probe requests */ 1784 if (!(changed_flags & FIF_PROBE_REQ)) 1785 return; 1786 1787 /* Supported only for p2p client interfaces */ 1788 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || 1789 !vif->p2p) 1790 return; 1791 1792 mutex_lock(&mvm->mutex); 1793 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1794 mutex_unlock(&mvm->mutex); 1795 } 1796 1797 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1798 struct iwl_bcast_iter_data { 1799 struct iwl_mvm *mvm; 1800 struct iwl_bcast_filter_cmd *cmd; 1801 u8 current_filter; 1802 }; 1803 1804 static void 1805 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, 1806 const struct iwl_fw_bcast_filter *in_filter, 1807 struct iwl_fw_bcast_filter *out_filter) 1808 { 1809 struct iwl_fw_bcast_filter_attr *attr; 1810 int i; 1811 1812 memcpy(out_filter, in_filter, sizeof(*out_filter)); 1813 1814 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { 1815 attr = &out_filter->attrs[i]; 1816 1817 if (!attr->mask) 1818 break; 1819 1820 switch (attr->reserved1) { 1821 case cpu_to_le16(BC_FILTER_MAGIC_IP): 1822 if (vif->bss_conf.arp_addr_cnt != 1) { 1823 attr->mask = 0; 1824 continue; 1825 } 1826 1827 attr->val = vif->bss_conf.arp_addr_list[0]; 1828 break; 1829 case cpu_to_le16(BC_FILTER_MAGIC_MAC): 1830 attr->val = *(__be32 *)&vif->addr[2]; 1831 break; 1832 default: 1833 break; 1834 } 1835 attr->reserved1 = 0; 1836 out_filter->num_attrs++; 1837 } 1838 } 1839 1840 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, 1841 struct ieee80211_vif *vif) 1842 { 1843 struct iwl_bcast_iter_data *data = _data; 1844 struct iwl_mvm *mvm = data->mvm; 1845 struct iwl_bcast_filter_cmd *cmd = data->cmd; 1846 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1847 struct iwl_fw_bcast_mac *bcast_mac; 1848 int i; 1849 1850 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) 1851 return; 1852 1853 bcast_mac = &cmd->macs[mvmvif->id]; 1854 1855 /* 1856 * enable filtering only for associated stations, but not for P2P 1857 * Clients 1858 */ 1859 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || 1860 !vif->bss_conf.assoc) 1861 return; 1862 1863 bcast_mac->default_discard = 1; 1864 1865 /* copy all configured filters */ 1866 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { 1867 /* 1868 * Make sure we don't exceed our filters limit. 1869 * if there is still a valid filter to be configured, 1870 * be on the safe side and just allow bcast for this mac. 1871 */ 1872 if (WARN_ON_ONCE(data->current_filter >= 1873 ARRAY_SIZE(cmd->filters))) { 1874 bcast_mac->default_discard = 0; 1875 bcast_mac->attached_filters = 0; 1876 break; 1877 } 1878 1879 iwl_mvm_set_bcast_filter(vif, 1880 &mvm->bcast_filters[i], 1881 &cmd->filters[data->current_filter]); 1882 1883 /* skip current filter if it contains no attributes */ 1884 if (!cmd->filters[data->current_filter].num_attrs) 1885 continue; 1886 1887 /* attach the filter to current mac */ 1888 bcast_mac->attached_filters |= 1889 cpu_to_le16(BIT(data->current_filter)); 1890 1891 data->current_filter++; 1892 } 1893 } 1894 1895 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, 1896 struct iwl_bcast_filter_cmd *cmd) 1897 { 1898 struct iwl_bcast_iter_data iter_data = { 1899 .mvm = mvm, 1900 .cmd = cmd, 1901 }; 1902 1903 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) 1904 return false; 1905 1906 memset(cmd, 0, sizeof(*cmd)); 1907 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); 1908 cmd->max_macs = ARRAY_SIZE(cmd->macs); 1909 1910 #ifdef CONFIG_IWLWIFI_DEBUGFS 1911 /* use debugfs filters/macs if override is configured */ 1912 if (mvm->dbgfs_bcast_filtering.override) { 1913 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, 1914 sizeof(cmd->filters)); 1915 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, 1916 sizeof(cmd->macs)); 1917 return true; 1918 } 1919 #endif 1920 1921 /* if no filters are configured, do nothing */ 1922 if (!mvm->bcast_filters) 1923 return false; 1924 1925 /* configure and attach these filters for each associated sta vif */ 1926 ieee80211_iterate_active_interfaces( 1927 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1928 iwl_mvm_bcast_filter_iterator, &iter_data); 1929 1930 return true; 1931 } 1932 1933 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1934 { 1935 struct iwl_bcast_filter_cmd cmd; 1936 1937 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) 1938 return 0; 1939 1940 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1941 return 0; 1942 1943 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1944 sizeof(cmd), &cmd); 1945 } 1946 #else 1947 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1948 { 1949 return 0; 1950 } 1951 #endif 1952 1953 static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, 1954 struct ieee80211_vif *vif) 1955 { 1956 struct iwl_mu_group_mgmt_cmd cmd = {}; 1957 1958 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1959 WLAN_MEMBERSHIP_LEN); 1960 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1961 WLAN_USER_POSITION_LEN); 1962 1963 return iwl_mvm_send_cmd_pdu(mvm, 1964 WIDE_ID(DATA_PATH_GROUP, 1965 UPDATE_MU_GROUPS_CMD), 1966 0, sizeof(cmd), &cmd); 1967 } 1968 1969 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1970 struct ieee80211_vif *vif) 1971 { 1972 if (vif->mu_mimo_owner) { 1973 struct iwl_mu_group_mgmt_notif *notif = _data; 1974 1975 /* 1976 * MU-MIMO Group Id action frame is little endian. We treat 1977 * the data received from firmware as if it came from the 1978 * action frame, so no conversion is needed. 1979 */ 1980 ieee80211_update_mu_groups(vif, 1981 (u8 *)¬if->membership_status, 1982 (u8 *)¬if->user_position); 1983 } 1984 } 1985 1986 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1987 struct iwl_rx_cmd_buffer *rxb) 1988 { 1989 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1990 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1991 1992 ieee80211_iterate_active_interfaces_atomic( 1993 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1994 iwl_mvm_mu_mimo_iface_iterator, notif); 1995 } 1996 1997 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1998 { 1999 u8 byte_num = ppe_pos_bit / 8; 2000 u8 bit_num = ppe_pos_bit % 8; 2001 u8 residue_bits; 2002 u8 res; 2003 2004 if (bit_num <= 5) 2005 return (ppe[byte_num] >> bit_num) & 2006 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2007 2008 /* 2009 * If bit_num > 5, we have to combine bits with next byte. 2010 * Calculate how many bits we need to take from current byte (called 2011 * here "residue_bits"), and add them to bits from next byte. 2012 */ 2013 2014 residue_bits = 8 - bit_num; 2015 2016 res = (ppe[byte_num + 1] & 2017 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2018 residue_bits; 2019 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2020 2021 return res; 2022 } 2023 2024 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2025 struct ieee80211_vif *vif, u8 sta_id) 2026 { 2027 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2028 struct iwl_he_sta_context_cmd sta_ctxt_cmd = { 2029 .sta_id = sta_id, 2030 .tid_limit = IWL_MAX_TID_COUNT, 2031 .bss_color = vif->bss_conf.he_bss_color.color, 2032 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2033 .frame_time_rts_th = 2034 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2035 }; 2036 int size = fw_has_api(&mvm->fw->ucode_capa, 2037 IWL_UCODE_TLV_API_MBSSID_HE) ? 2038 sizeof(sta_ctxt_cmd) : 2039 sizeof(struct iwl_he_sta_context_cmd_v1); 2040 struct ieee80211_sta *sta; 2041 u32 flags; 2042 int i; 2043 2044 rcu_read_lock(); 2045 2046 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2047 if (IS_ERR_OR_NULL(sta)) { 2048 rcu_read_unlock(); 2049 WARN(1, "Can't find STA to configure HE\n"); 2050 return; 2051 } 2052 2053 if (!sta->he_cap.has_he) { 2054 rcu_read_unlock(); 2055 return; 2056 } 2057 2058 flags = 0; 2059 2060 /* Block 26-tone RU OFDMA transmissions */ 2061 if (mvmvif->he_ru_2mhz_block) 2062 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2063 2064 /* HTC flags */ 2065 if (sta->he_cap.he_cap_elem.mac_cap_info[0] & 2066 IEEE80211_HE_MAC_CAP0_HTC_HE) 2067 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2068 if ((sta->he_cap.he_cap_elem.mac_cap_info[1] & 2069 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2070 (sta->he_cap.he_cap_elem.mac_cap_info[2] & 2071 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2072 u8 link_adap = 2073 ((sta->he_cap.he_cap_elem.mac_cap_info[2] & 2074 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2075 (sta->he_cap.he_cap_elem.mac_cap_info[1] & 2076 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2077 2078 if (link_adap == 2) 2079 sta_ctxt_cmd.htc_flags |= 2080 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2081 else if (link_adap == 3) 2082 sta_ctxt_cmd.htc_flags |= 2083 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2084 } 2085 if (sta->he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2086 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2087 if (sta->he_cap.he_cap_elem.mac_cap_info[3] & 2088 IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2089 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2090 if (sta->he_cap.he_cap_elem.mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2091 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2092 2093 /* 2094 * Initialize the PPE thresholds to "None" (7), as described in Table 2095 * 9-262ac of 80211.ax/D3.0. 2096 */ 2097 memset(&sta_ctxt_cmd.pkt_ext, 7, sizeof(sta_ctxt_cmd.pkt_ext)); 2098 2099 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2100 if (sta->he_cap.he_cap_elem.phy_cap_info[6] & 2101 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2102 u8 nss = (sta->he_cap.ppe_thres[0] & 2103 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2104 u8 ru_index_bitmap = 2105 (sta->he_cap.ppe_thres[0] & 2106 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK) >> 2107 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS; 2108 u8 *ppe = &sta->he_cap.ppe_thres[0]; 2109 u8 ppe_pos_bit = 7; /* Starting after PPE header */ 2110 2111 /* 2112 * FW currently supports only nss == MAX_HE_SUPP_NSS 2113 * 2114 * If nss > MAX: we can ignore values we don't support 2115 * If nss < MAX: we can set zeros in other streams 2116 */ 2117 if (nss > MAX_HE_SUPP_NSS) { 2118 IWL_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2119 MAX_HE_SUPP_NSS); 2120 nss = MAX_HE_SUPP_NSS; 2121 } 2122 2123 for (i = 0; i < nss; i++) { 2124 u8 ru_index_tmp = ru_index_bitmap << 1; 2125 u8 bw; 2126 2127 for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX; bw++) { 2128 ru_index_tmp >>= 1; 2129 if (!(ru_index_tmp & 1)) 2130 continue; 2131 2132 sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][1] = 2133 iwl_mvm_he_get_ppe_val(ppe, 2134 ppe_pos_bit); 2135 ppe_pos_bit += 2136 IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2137 sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][0] = 2138 iwl_mvm_he_get_ppe_val(ppe, 2139 ppe_pos_bit); 2140 ppe_pos_bit += 2141 IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2142 } 2143 } 2144 2145 flags |= STA_CTXT_HE_PACKET_EXT; 2146 } else if ((sta->he_cap.he_cap_elem.phy_cap_info[9] & 2147 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) != 2148 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_RESERVED) { 2149 int low_th = -1; 2150 int high_th = -1; 2151 2152 /* Take the PPE thresholds from the nominal padding info */ 2153 switch (sta->he_cap.he_cap_elem.phy_cap_info[9] & 2154 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) { 2155 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US: 2156 low_th = IWL_HE_PKT_EXT_NONE; 2157 high_th = IWL_HE_PKT_EXT_NONE; 2158 break; 2159 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US: 2160 low_th = IWL_HE_PKT_EXT_BPSK; 2161 high_th = IWL_HE_PKT_EXT_NONE; 2162 break; 2163 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US: 2164 low_th = IWL_HE_PKT_EXT_NONE; 2165 high_th = IWL_HE_PKT_EXT_BPSK; 2166 break; 2167 } 2168 2169 /* Set the PPE thresholds accordingly */ 2170 if (low_th >= 0 && high_th >= 0) { 2171 struct iwl_he_pkt_ext *pkt_ext = 2172 (struct iwl_he_pkt_ext *)&sta_ctxt_cmd.pkt_ext; 2173 2174 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2175 u8 bw; 2176 2177 for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX; 2178 bw++) { 2179 pkt_ext->pkt_ext_qam_th[i][bw][0] = 2180 low_th; 2181 pkt_ext->pkt_ext_qam_th[i][bw][1] = 2182 high_th; 2183 } 2184 } 2185 2186 flags |= STA_CTXT_HE_PACKET_EXT; 2187 } 2188 } 2189 2190 if (sta->he_cap.he_cap_elem.mac_cap_info[2] & 2191 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2192 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2193 2194 if (sta->he_cap.he_cap_elem.mac_cap_info[2] & 2195 IEEE80211_HE_MAC_CAP2_ACK_EN) 2196 flags |= STA_CTXT_HE_ACK_ENABLED; 2197 2198 rcu_read_unlock(); 2199 2200 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2201 flags |= STA_CTXT_HE_MU_EDCA_CW; 2202 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2203 struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2204 &mvmvif->queue_params[i].mu_edca_param_rec; 2205 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2206 2207 if (!mvmvif->queue_params[i].mu_edca) { 2208 flags &= ~STA_CTXT_HE_MU_EDCA_CW; 2209 break; 2210 } 2211 2212 sta_ctxt_cmd.trig_based_txf[ac].cwmin = 2213 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2214 sta_ctxt_cmd.trig_based_txf[ac].cwmax = 2215 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2216 sta_ctxt_cmd.trig_based_txf[ac].aifsn = 2217 cpu_to_le16(mu_edca->aifsn); 2218 sta_ctxt_cmd.trig_based_txf[ac].mu_time = 2219 cpu_to_le16(mu_edca->mu_edca_timer); 2220 } 2221 2222 2223 if (vif->bss_conf.uora_exists) { 2224 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2225 2226 sta_ctxt_cmd.rand_alloc_ecwmin = 2227 vif->bss_conf.uora_ocw_range & 0x7; 2228 sta_ctxt_cmd.rand_alloc_ecwmax = 2229 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2230 } 2231 2232 if (vif->bss_conf.nontransmitted) { 2233 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2234 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2235 vif->bss_conf.transmitter_bssid); 2236 sta_ctxt_cmd.max_bssid_indicator = 2237 vif->bss_conf.bssid_indicator; 2238 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2239 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2240 sta_ctxt_cmd.profile_periodicity = 2241 vif->bss_conf.profile_periodicity; 2242 } 2243 2244 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2245 2246 if (iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(STA_HE_CTXT_CMD, 2247 DATA_PATH_GROUP, 0), 2248 0, size, &sta_ctxt_cmd)) 2249 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2250 } 2251 2252 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2253 struct ieee80211_vif *vif, 2254 struct ieee80211_bss_conf *bss_conf, 2255 u32 changes) 2256 { 2257 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2258 int ret; 2259 2260 /* 2261 * Re-calculate the tsf id, as the master-slave relations depend on the 2262 * beacon interval, which was not known when the station interface was 2263 * added. 2264 */ 2265 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) { 2266 if (vif->bss_conf.he_support && 2267 !iwlwifi_mod_params.disable_11ax) 2268 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2269 2270 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2271 } 2272 2273 /* Update MU EDCA params */ 2274 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2275 bss_conf->assoc && vif->bss_conf.he_support && 2276 !iwlwifi_mod_params.disable_11ax) 2277 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2278 2279 /* 2280 * If we're not associated yet, take the (new) BSSID before associating 2281 * so the firmware knows. If we're already associated, then use the old 2282 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2283 * branch for disassociation below. 2284 */ 2285 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2286 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2287 2288 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); 2289 if (ret) 2290 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2291 2292 /* after sending it once, adopt mac80211 data */ 2293 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2294 mvmvif->associated = bss_conf->assoc; 2295 2296 if (changes & BSS_CHANGED_ASSOC) { 2297 if (bss_conf->assoc) { 2298 /* clear statistics to get clean beacon counter */ 2299 iwl_mvm_request_statistics(mvm, true); 2300 memset(&mvmvif->beacon_stats, 0, 2301 sizeof(mvmvif->beacon_stats)); 2302 2303 /* add quota for this interface */ 2304 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2305 if (ret) { 2306 IWL_ERR(mvm, "failed to update quotas\n"); 2307 return; 2308 } 2309 2310 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2311 &mvm->status) && 2312 !fw_has_capa(&mvm->fw->ucode_capa, 2313 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2314 /* 2315 * If we're restarting then the firmware will 2316 * obviously have lost synchronisation with 2317 * the AP. It will attempt to synchronise by 2318 * itself, but we can make it more reliable by 2319 * scheduling a session protection time event. 2320 * 2321 * The firmware needs to receive a beacon to 2322 * catch up with synchronisation, use 110% of 2323 * the beacon interval. 2324 * 2325 * Set a large maximum delay to allow for more 2326 * than a single interface. 2327 * 2328 * For new firmware versions, rely on the 2329 * firmware. This is relevant for DCM scenarios 2330 * only anyway. 2331 */ 2332 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2333 iwl_mvm_protect_session(mvm, vif, dur, dur, 2334 5 * dur, false); 2335 } 2336 2337 iwl_mvm_sf_update(mvm, vif, false); 2338 iwl_mvm_power_vif_assoc(mvm, vif); 2339 if (vif->p2p) { 2340 iwl_mvm_update_smps(mvm, vif, 2341 IWL_MVM_SMPS_REQ_PROT, 2342 IEEE80211_SMPS_DYNAMIC); 2343 } 2344 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 2345 /* 2346 * If update fails - SF might be running in associated 2347 * mode while disassociated - which is forbidden. 2348 */ 2349 ret = iwl_mvm_sf_update(mvm, vif, false); 2350 WARN_ONCE(ret && 2351 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2352 &mvm->status), 2353 "Failed to update SF upon disassociation\n"); 2354 2355 /* 2356 * If we get an assert during the connection (after the 2357 * station has been added, but before the vif is set 2358 * to associated), mac80211 will re-add the station and 2359 * then configure the vif. Since the vif is not 2360 * associated, we would remove the station here and 2361 * this would fail the recovery. 2362 */ 2363 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2364 &mvm->status)) { 2365 /* 2366 * Remove AP station now that 2367 * the MAC is unassoc 2368 */ 2369 ret = iwl_mvm_rm_sta_id(mvm, vif, 2370 mvmvif->ap_sta_id); 2371 if (ret) 2372 IWL_ERR(mvm, 2373 "failed to remove AP station\n"); 2374 2375 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 2376 } 2377 2378 /* remove quota for this interface */ 2379 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2380 if (ret) 2381 IWL_ERR(mvm, "failed to update quotas\n"); 2382 2383 /* this will take the cleared BSSID from bss_conf */ 2384 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2385 if (ret) 2386 IWL_ERR(mvm, 2387 "failed to update MAC %pM (clear after unassoc)\n", 2388 vif->addr); 2389 } 2390 2391 /* 2392 * The firmware tracks the MU-MIMO group on its own. 2393 * However, on HW restart we should restore this data. 2394 */ 2395 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2396 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) { 2397 ret = iwl_mvm_update_mu_groups(mvm, vif); 2398 if (ret) 2399 IWL_ERR(mvm, 2400 "failed to update VHT MU_MIMO groups\n"); 2401 } 2402 2403 iwl_mvm_recalc_multicast(mvm); 2404 iwl_mvm_configure_bcast_filter(mvm); 2405 2406 /* reset rssi values */ 2407 mvmvif->bf_data.ave_beacon_signal = 0; 2408 2409 iwl_mvm_bt_coex_vif_change(mvm); 2410 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2411 IEEE80211_SMPS_AUTOMATIC); 2412 if (fw_has_capa(&mvm->fw->ucode_capa, 2413 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2414 iwl_mvm_config_scan(mvm); 2415 } 2416 2417 if (changes & BSS_CHANGED_BEACON_INFO) { 2418 /* 2419 * We received a beacon from the associated AP so 2420 * remove the session protection. 2421 * A firmware with the new API will remove it automatically. 2422 */ 2423 if (!fw_has_capa(&mvm->fw->ucode_capa, 2424 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2425 iwl_mvm_stop_session_protection(mvm, vif); 2426 2427 iwl_mvm_sf_update(mvm, vif, false); 2428 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2429 } 2430 2431 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2432 /* 2433 * Send power command on every beacon change, 2434 * because we may have not enabled beacon abort yet. 2435 */ 2436 BSS_CHANGED_BEACON_INFO)) { 2437 ret = iwl_mvm_power_update_mac(mvm); 2438 if (ret) 2439 IWL_ERR(mvm, "failed to update power mode\n"); 2440 } 2441 2442 if (changes & BSS_CHANGED_TXPOWER) { 2443 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 2444 bss_conf->txpower); 2445 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2446 } 2447 2448 if (changes & BSS_CHANGED_CQM) { 2449 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2450 /* reset cqm events tracking */ 2451 mvmvif->bf_data.last_cqm_event = 0; 2452 if (mvmvif->bf_data.bf_enabled) { 2453 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2454 if (ret) 2455 IWL_ERR(mvm, 2456 "failed to update CQM thresholds\n"); 2457 } 2458 } 2459 2460 if (changes & BSS_CHANGED_ARP_FILTER) { 2461 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); 2462 iwl_mvm_configure_bcast_filter(mvm); 2463 } 2464 } 2465 2466 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2467 struct ieee80211_vif *vif) 2468 { 2469 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2470 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2471 int ret, i; 2472 2473 mutex_lock(&mvm->mutex); 2474 2475 /* Send the beacon template */ 2476 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); 2477 if (ret) 2478 goto out_unlock; 2479 2480 /* 2481 * Re-calculate the tsf id, as the master-slave relations depend on the 2482 * beacon interval, which was not known when the AP interface was added. 2483 */ 2484 if (vif->type == NL80211_IFTYPE_AP) 2485 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2486 2487 mvmvif->ap_assoc_sta_count = 0; 2488 2489 /* Add the mac context */ 2490 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2491 if (ret) 2492 goto out_unlock; 2493 2494 /* Perform the binding */ 2495 ret = iwl_mvm_binding_add_vif(mvm, vif); 2496 if (ret) 2497 goto out_remove; 2498 2499 /* 2500 * This is not very nice, but the simplest: 2501 * For older FWs adding the mcast sta before the bcast station may 2502 * cause assert 0x2b00. 2503 * This is fixed in later FW so make the order of removal depend on 2504 * the TLV 2505 */ 2506 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2507 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2508 if (ret) 2509 goto out_unbind; 2510 /* 2511 * Send the bcast station. At this stage the TBTT and DTIM time 2512 * events are added and applied to the scheduler 2513 */ 2514 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2515 if (ret) { 2516 iwl_mvm_rm_mcast_sta(mvm, vif); 2517 goto out_unbind; 2518 } 2519 } else { 2520 /* 2521 * Send the bcast station. At this stage the TBTT and DTIM time 2522 * events are added and applied to the scheduler 2523 */ 2524 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2525 if (ret) 2526 goto out_unbind; 2527 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2528 if (ret) { 2529 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2530 goto out_unbind; 2531 } 2532 } 2533 2534 /* must be set before quota calculations */ 2535 mvmvif->ap_ibss_active = true; 2536 2537 /* send all the early keys to the device now */ 2538 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2539 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2540 2541 if (!key) 2542 continue; 2543 2544 mvmvif->ap_early_keys[i] = NULL; 2545 2546 ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2547 if (ret) 2548 goto out_quota_failed; 2549 } 2550 2551 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2552 iwl_mvm_vif_set_low_latency(mvmvif, true, 2553 LOW_LATENCY_VIF_TYPE); 2554 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2555 } 2556 2557 /* power updated needs to be done before quotas */ 2558 iwl_mvm_power_update_mac(mvm); 2559 2560 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2561 if (ret) 2562 goto out_quota_failed; 2563 2564 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2565 if (vif->p2p && mvm->p2p_device_vif) 2566 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2567 2568 iwl_mvm_bt_coex_vif_change(mvm); 2569 2570 /* we don't support TDLS during DCM */ 2571 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2572 iwl_mvm_teardown_tdls_peers(mvm); 2573 2574 iwl_mvm_ftm_restart_responder(mvm, vif); 2575 2576 goto out_unlock; 2577 2578 out_quota_failed: 2579 iwl_mvm_power_update_mac(mvm); 2580 mvmvif->ap_ibss_active = false; 2581 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2582 iwl_mvm_rm_mcast_sta(mvm, vif); 2583 out_unbind: 2584 iwl_mvm_binding_remove_vif(mvm, vif); 2585 out_remove: 2586 iwl_mvm_mac_ctxt_remove(mvm, vif); 2587 out_unlock: 2588 mutex_unlock(&mvm->mutex); 2589 return ret; 2590 } 2591 2592 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2593 struct ieee80211_vif *vif) 2594 { 2595 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2596 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2597 2598 iwl_mvm_prepare_mac_removal(mvm, vif); 2599 2600 mutex_lock(&mvm->mutex); 2601 2602 /* Handle AP stop while in CSA */ 2603 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2604 iwl_mvm_remove_time_event(mvm, mvmvif, 2605 &mvmvif->time_event_data); 2606 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2607 mvmvif->csa_countdown = false; 2608 } 2609 2610 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2611 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2612 mvm->csa_tx_block_bcn_timeout = 0; 2613 } 2614 2615 mvmvif->ap_ibss_active = false; 2616 mvm->ap_last_beacon_gp2 = 0; 2617 2618 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2619 iwl_mvm_vif_set_low_latency(mvmvif, false, 2620 LOW_LATENCY_VIF_TYPE); 2621 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2622 } 2623 2624 iwl_mvm_bt_coex_vif_change(mvm); 2625 2626 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2627 if (vif->p2p && mvm->p2p_device_vif) 2628 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2629 2630 iwl_mvm_update_quotas(mvm, false, NULL); 2631 2632 /* 2633 * This is not very nice, but the simplest: 2634 * For older FWs removing the mcast sta before the bcast station may 2635 * cause assert 0x2b00. 2636 * This is fixed in later FW (which will stop beaconing when removing 2637 * bcast station). 2638 * So make the order of removal depend on the TLV 2639 */ 2640 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2641 iwl_mvm_rm_mcast_sta(mvm, vif); 2642 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2643 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2644 iwl_mvm_rm_mcast_sta(mvm, vif); 2645 iwl_mvm_binding_remove_vif(mvm, vif); 2646 2647 iwl_mvm_power_update_mac(mvm); 2648 2649 iwl_mvm_mac_ctxt_remove(mvm, vif); 2650 2651 mutex_unlock(&mvm->mutex); 2652 } 2653 2654 static void 2655 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 2656 struct ieee80211_vif *vif, 2657 struct ieee80211_bss_conf *bss_conf, 2658 u32 changes) 2659 { 2660 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2661 2662 /* Changes will be applied when the AP/IBSS is started */ 2663 if (!mvmvif->ap_ibss_active) 2664 return; 2665 2666 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 2667 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 2668 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 2669 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2670 2671 /* Need to send a new beacon template to the FW */ 2672 if (changes & BSS_CHANGED_BEACON && 2673 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) 2674 IWL_WARN(mvm, "Failed updating beacon data\n"); 2675 2676 if (changes & BSS_CHANGED_TXPOWER) { 2677 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 2678 bss_conf->txpower); 2679 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2680 } 2681 2682 if (changes & BSS_CHANGED_FTM_RESPONDER) { 2683 int ret = iwl_mvm_ftm_start_responder(mvm, vif); 2684 2685 if (ret) 2686 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 2687 ret); 2688 } 2689 2690 } 2691 2692 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 2693 struct ieee80211_vif *vif, 2694 struct ieee80211_bss_conf *bss_conf, 2695 u32 changes) 2696 { 2697 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2698 2699 mutex_lock(&mvm->mutex); 2700 2701 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) 2702 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 2703 2704 switch (vif->type) { 2705 case NL80211_IFTYPE_STATION: 2706 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 2707 break; 2708 case NL80211_IFTYPE_AP: 2709 case NL80211_IFTYPE_ADHOC: 2710 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 2711 break; 2712 case NL80211_IFTYPE_MONITOR: 2713 if (changes & BSS_CHANGED_MU_GROUPS) 2714 iwl_mvm_update_mu_groups(mvm, vif); 2715 break; 2716 default: 2717 /* shouldn't happen */ 2718 WARN_ON_ONCE(1); 2719 } 2720 2721 mutex_unlock(&mvm->mutex); 2722 } 2723 2724 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, 2725 struct ieee80211_vif *vif, 2726 struct ieee80211_scan_request *hw_req) 2727 { 2728 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2729 int ret; 2730 2731 if (hw_req->req.n_channels == 0 || 2732 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 2733 return -EINVAL; 2734 2735 mutex_lock(&mvm->mutex); 2736 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 2737 mutex_unlock(&mvm->mutex); 2738 2739 return ret; 2740 } 2741 2742 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 2743 struct ieee80211_vif *vif) 2744 { 2745 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2746 2747 mutex_lock(&mvm->mutex); 2748 2749 /* Due to a race condition, it's possible that mac80211 asks 2750 * us to stop a hw_scan when it's already stopped. This can 2751 * happen, for instance, if we stopped the scan ourselves, 2752 * called ieee80211_scan_completed() and the userspace called 2753 * cancel scan scan before ieee80211_scan_work() could run. 2754 * To handle that, simply return if the scan is not running. 2755 */ 2756 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 2757 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 2758 2759 mutex_unlock(&mvm->mutex); 2760 } 2761 2762 static void 2763 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 2764 struct ieee80211_sta *sta, u16 tids, 2765 int num_frames, 2766 enum ieee80211_frame_release_type reason, 2767 bool more_data) 2768 { 2769 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2770 2771 /* Called when we need to transmit (a) frame(s) from mac80211 */ 2772 2773 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2774 tids, more_data, false); 2775 } 2776 2777 static void 2778 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 2779 struct ieee80211_sta *sta, u16 tids, 2780 int num_frames, 2781 enum ieee80211_frame_release_type reason, 2782 bool more_data) 2783 { 2784 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2785 2786 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 2787 2788 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2789 tids, more_data, true); 2790 } 2791 2792 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2793 enum sta_notify_cmd cmd, 2794 struct ieee80211_sta *sta) 2795 { 2796 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2797 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2798 unsigned long txqs = 0, tids = 0; 2799 int tid; 2800 2801 /* 2802 * If we have TVQM then we get too high queue numbers - luckily 2803 * we really shouldn't get here with that because such hardware 2804 * should have firmware supporting buffer station offload. 2805 */ 2806 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 2807 return; 2808 2809 spin_lock_bh(&mvmsta->lock); 2810 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 2811 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2812 2813 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 2814 continue; 2815 2816 __set_bit(tid_data->txq_id, &txqs); 2817 2818 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 2819 continue; 2820 2821 __set_bit(tid, &tids); 2822 } 2823 2824 switch (cmd) { 2825 case STA_NOTIFY_SLEEP: 2826 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 2827 ieee80211_sta_set_buffered(sta, tid, true); 2828 2829 if (txqs) 2830 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 2831 /* 2832 * The fw updates the STA to be asleep. Tx packets on the Tx 2833 * queues to this station will not be transmitted. The fw will 2834 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 2835 */ 2836 break; 2837 case STA_NOTIFY_AWAKE: 2838 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA)) 2839 break; 2840 2841 if (txqs) 2842 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 2843 iwl_mvm_sta_modify_ps_wake(mvm, sta); 2844 break; 2845 default: 2846 break; 2847 } 2848 spin_unlock_bh(&mvmsta->lock); 2849 } 2850 2851 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2852 struct ieee80211_vif *vif, 2853 enum sta_notify_cmd cmd, 2854 struct ieee80211_sta *sta) 2855 { 2856 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 2857 } 2858 2859 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 2860 { 2861 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2862 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 2863 struct ieee80211_sta *sta; 2864 struct iwl_mvm_sta *mvmsta; 2865 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 2866 2867 if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))) 2868 return; 2869 2870 rcu_read_lock(); 2871 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 2872 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 2873 rcu_read_unlock(); 2874 return; 2875 } 2876 2877 mvmsta = iwl_mvm_sta_from_mac80211(sta); 2878 2879 if (!mvmsta->vif || 2880 mvmsta->vif->type != NL80211_IFTYPE_AP) { 2881 rcu_read_unlock(); 2882 return; 2883 } 2884 2885 if (mvmsta->sleeping != sleeping) { 2886 mvmsta->sleeping = sleeping; 2887 __iwl_mvm_mac_sta_notify(mvm->hw, 2888 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 2889 sta); 2890 ieee80211_sta_ps_transition(sta, sleeping); 2891 } 2892 2893 if (sleeping) { 2894 switch (notif->type) { 2895 case IWL_MVM_PM_EVENT_AWAKE: 2896 case IWL_MVM_PM_EVENT_ASLEEP: 2897 break; 2898 case IWL_MVM_PM_EVENT_UAPSD: 2899 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 2900 break; 2901 case IWL_MVM_PM_EVENT_PS_POLL: 2902 ieee80211_sta_pspoll(sta); 2903 break; 2904 default: 2905 break; 2906 } 2907 } 2908 2909 rcu_read_unlock(); 2910 } 2911 2912 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 2913 struct ieee80211_vif *vif, 2914 struct ieee80211_sta *sta) 2915 { 2916 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2917 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2918 2919 /* 2920 * This is called before mac80211 does RCU synchronisation, 2921 * so here we already invalidate our internal RCU-protected 2922 * station pointer. The rest of the code will thus no longer 2923 * be able to find the station this way, and we don't rely 2924 * on further RCU synchronisation after the sta_state() 2925 * callback deleted the station. 2926 */ 2927 mutex_lock(&mvm->mutex); 2928 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) 2929 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], 2930 ERR_PTR(-ENOENT)); 2931 2932 mutex_unlock(&mvm->mutex); 2933 } 2934 2935 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2936 const u8 *bssid) 2937 { 2938 int i; 2939 2940 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 2941 struct iwl_mvm_tcm_mac *mdata; 2942 2943 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 2944 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 2945 mdata->opened_rx_ba_sessions = false; 2946 } 2947 2948 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 2949 return; 2950 2951 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 2952 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2953 return; 2954 } 2955 2956 if (!vif->p2p && 2957 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 2958 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2959 return; 2960 } 2961 2962 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 2963 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 2964 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2965 return; 2966 } 2967 } 2968 2969 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 2970 } 2971 2972 static void 2973 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 2974 struct ieee80211_vif *vif, u8 *peer_addr, 2975 enum nl80211_tdls_operation action) 2976 { 2977 struct iwl_fw_dbg_trigger_tlv *trig; 2978 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 2979 2980 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 2981 FW_DBG_TRIGGER_TDLS); 2982 if (!trig) 2983 return; 2984 2985 tdls_trig = (void *)trig->data; 2986 2987 if (!(tdls_trig->action_bitmap & BIT(action))) 2988 return; 2989 2990 if (tdls_trig->peer_mode && 2991 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 2992 return; 2993 2994 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 2995 "TDLS event occurred, peer %pM, action %d", 2996 peer_addr, action); 2997 } 2998 2999 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3000 bool tolerated; 3001 }; 3002 3003 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3004 struct cfg80211_bss *bss, 3005 void *_data) 3006 { 3007 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3008 const struct element *elem; 3009 3010 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, bss->ies->data, 3011 bss->ies->len); 3012 3013 if (!elem || elem->datalen < 10 || 3014 !(elem->data[10] & 3015 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3016 data->tolerated = false; 3017 } 3018 } 3019 3020 static void iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3021 struct ieee80211_vif *vif) 3022 { 3023 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3024 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3025 .tolerated = true, 3026 }; 3027 3028 if (!(vif->bss_conf.chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3029 mvmvif->he_ru_2mhz_block = false; 3030 return; 3031 } 3032 3033 cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chandef, 3034 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3035 &iter_data); 3036 3037 /* 3038 * If there is at least one AP on radar channel that cannot 3039 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3040 */ 3041 mvmvif->he_ru_2mhz_block = !iter_data.tolerated; 3042 } 3043 3044 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3045 struct ieee80211_vif *vif, 3046 struct ieee80211_sta *sta, 3047 enum ieee80211_sta_state old_state, 3048 enum ieee80211_sta_state new_state) 3049 { 3050 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3051 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3052 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3053 int ret; 3054 3055 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3056 sta->addr, old_state, new_state); 3057 3058 /* this would be a mac80211 bug ... but don't crash */ 3059 if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) 3060 return -EINVAL; 3061 3062 /* 3063 * If we are in a STA removal flow and in DQA mode: 3064 * 3065 * This is after the sync_rcu part, so the queues have already been 3066 * flushed. No more TXs on their way in mac80211's path, and no more in 3067 * the queues. 3068 * Also, we won't be getting any new TX frames for this station. 3069 * What we might have are deferred TX frames that need to be taken care 3070 * of. 3071 * 3072 * Drop any still-queued deferred-frame before removing the STA, and 3073 * make sure the worker is no longer handling frames for this STA. 3074 */ 3075 if (old_state == IEEE80211_STA_NONE && 3076 new_state == IEEE80211_STA_NOTEXIST) { 3077 flush_work(&mvm->add_stream_wk); 3078 3079 /* 3080 * No need to make sure deferred TX indication is off since the 3081 * worker will already remove it if it was on 3082 */ 3083 } 3084 3085 mutex_lock(&mvm->mutex); 3086 /* track whether or not the station is associated */ 3087 mvm_sta->sta_state = new_state; 3088 3089 if (old_state == IEEE80211_STA_NOTEXIST && 3090 new_state == IEEE80211_STA_NONE) { 3091 /* 3092 * Firmware bug - it'll crash if the beacon interval is less 3093 * than 16. We can't avoid connecting at all, so refuse the 3094 * station state change, this will cause mac80211 to abandon 3095 * attempts to connect to this AP, and eventually wpa_s will 3096 * blacklist the AP... 3097 */ 3098 if (vif->type == NL80211_IFTYPE_STATION && 3099 vif->bss_conf.beacon_int < 16) { 3100 IWL_ERR(mvm, 3101 "AP %pM beacon interval is %d, refusing due to firmware bug!\n", 3102 sta->addr, vif->bss_conf.beacon_int); 3103 ret = -EINVAL; 3104 goto out_unlock; 3105 } 3106 3107 if (sta->tdls && 3108 (vif->p2p || 3109 iwl_mvm_tdls_sta_count(mvm, NULL) == 3110 IWL_MVM_TDLS_STA_COUNT || 3111 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3112 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3113 ret = -EBUSY; 3114 goto out_unlock; 3115 } 3116 3117 ret = iwl_mvm_add_sta(mvm, vif, sta); 3118 if (sta->tdls && ret == 0) { 3119 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3120 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3121 NL80211_TDLS_SETUP); 3122 } 3123 3124 sta->max_rc_amsdu_len = 1; 3125 } else if (old_state == IEEE80211_STA_NONE && 3126 new_state == IEEE80211_STA_AUTH) { 3127 /* 3128 * EBS may be disabled due to previous failures reported by FW. 3129 * Reset EBS status here assuming environment has been changed. 3130 */ 3131 mvm->last_ebs_successful = true; 3132 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3133 ret = 0; 3134 } else if (old_state == IEEE80211_STA_AUTH && 3135 new_state == IEEE80211_STA_ASSOC) { 3136 if (vif->type == NL80211_IFTYPE_AP) { 3137 vif->bss_conf.he_support = sta->he_cap.has_he; 3138 mvmvif->ap_assoc_sta_count++; 3139 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3140 if (vif->bss_conf.he_support && 3141 !iwlwifi_mod_params.disable_11ax) 3142 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->sta_id); 3143 } else if (vif->type == NL80211_IFTYPE_STATION) { 3144 vif->bss_conf.he_support = sta->he_cap.has_he; 3145 3146 mvmvif->he_ru_2mhz_block = false; 3147 if (sta->he_cap.has_he) 3148 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif); 3149 3150 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3151 } 3152 3153 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3154 false); 3155 ret = iwl_mvm_update_sta(mvm, vif, sta); 3156 } else if (old_state == IEEE80211_STA_ASSOC && 3157 new_state == IEEE80211_STA_AUTHORIZED) { 3158 ret = 0; 3159 3160 /* we don't support TDLS during DCM */ 3161 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3162 iwl_mvm_teardown_tdls_peers(mvm); 3163 3164 if (sta->tdls) 3165 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3166 NL80211_TDLS_ENABLE_LINK); 3167 3168 /* enable beacon filtering */ 3169 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3170 3171 /* 3172 * Now that the station is authorized, i.e., keys were already 3173 * installed, need to indicate to the FW that 3174 * multicast data frames can be forwarded to the driver 3175 */ 3176 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3177 3178 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3179 true); 3180 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3181 new_state == IEEE80211_STA_ASSOC) { 3182 /* Multicast data frames are no longer allowed */ 3183 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3184 3185 /* disable beacon filtering */ 3186 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3187 WARN_ON(ret && 3188 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3189 &mvm->status)); 3190 ret = 0; 3191 } else if (old_state == IEEE80211_STA_ASSOC && 3192 new_state == IEEE80211_STA_AUTH) { 3193 if (vif->type == NL80211_IFTYPE_AP) { 3194 mvmvif->ap_assoc_sta_count--; 3195 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3196 } 3197 ret = 0; 3198 } else if (old_state == IEEE80211_STA_AUTH && 3199 new_state == IEEE80211_STA_NONE) { 3200 ret = 0; 3201 } else if (old_state == IEEE80211_STA_NONE && 3202 new_state == IEEE80211_STA_NOTEXIST) { 3203 ret = iwl_mvm_rm_sta(mvm, vif, sta); 3204 if (sta->tdls) { 3205 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3206 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3207 NL80211_TDLS_DISABLE_LINK); 3208 } 3209 3210 if (unlikely(ret && 3211 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3212 &mvm->status))) 3213 ret = 0; 3214 } else { 3215 ret = -EIO; 3216 } 3217 out_unlock: 3218 mutex_unlock(&mvm->mutex); 3219 3220 if (sta->tdls && ret == 0) { 3221 if (old_state == IEEE80211_STA_NOTEXIST && 3222 new_state == IEEE80211_STA_NONE) 3223 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3224 else if (old_state == IEEE80211_STA_NONE && 3225 new_state == IEEE80211_STA_NOTEXIST) 3226 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3227 } 3228 3229 return ret; 3230 } 3231 3232 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3233 { 3234 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3235 3236 mvm->rts_threshold = value; 3237 3238 return 0; 3239 } 3240 3241 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, 3242 struct ieee80211_vif *vif, 3243 struct ieee80211_sta *sta, u32 changed) 3244 { 3245 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3246 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3247 3248 if (changed & (IEEE80211_RC_BW_CHANGED | 3249 IEEE80211_RC_SUPP_RATES_CHANGED | 3250 IEEE80211_RC_NSS_CHANGED)) 3251 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3252 true); 3253 3254 if (vif->type == NL80211_IFTYPE_STATION && 3255 changed & IEEE80211_RC_NSS_CHANGED) 3256 iwl_mvm_sf_update(mvm, vif, false); 3257 } 3258 3259 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 3260 struct ieee80211_vif *vif, u16 ac, 3261 const struct ieee80211_tx_queue_params *params) 3262 { 3263 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3264 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3265 3266 mvmvif->queue_params[ac] = *params; 3267 3268 /* 3269 * No need to update right away, we'll get BSS_CHANGED_QOS 3270 * The exception is P2P_DEVICE interface which needs immediate update. 3271 */ 3272 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 3273 int ret; 3274 3275 mutex_lock(&mvm->mutex); 3276 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3277 mutex_unlock(&mvm->mutex); 3278 return ret; 3279 } 3280 return 0; 3281 } 3282 3283 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 3284 struct ieee80211_vif *vif, 3285 u16 req_duration) 3286 { 3287 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3288 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 3289 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 3290 3291 if (req_duration > duration) 3292 duration = req_duration; 3293 3294 mutex_lock(&mvm->mutex); 3295 /* Try really hard to protect the session and hear a beacon 3296 * The new session protection command allows us to protect the 3297 * session for a much longer time since the firmware will internally 3298 * create two events: a 300TU one with a very high priority that 3299 * won't be fragmented which should be enough for 99% of the cases, 3300 * and another one (which we configure here to be 900TU long) which 3301 * will have a slightly lower priority, but more importantly, can be 3302 * fragmented so that it'll allow other activities to run. 3303 */ 3304 if (fw_has_capa(&mvm->fw->ucode_capa, 3305 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 3306 iwl_mvm_schedule_session_protection(mvm, vif, 900, 3307 min_duration, false); 3308 else 3309 iwl_mvm_protect_session(mvm, vif, duration, 3310 min_duration, 500, false); 3311 mutex_unlock(&mvm->mutex); 3312 } 3313 3314 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 3315 struct ieee80211_vif *vif, 3316 struct cfg80211_sched_scan_request *req, 3317 struct ieee80211_scan_ies *ies) 3318 { 3319 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3320 3321 int ret; 3322 3323 mutex_lock(&mvm->mutex); 3324 3325 if (!vif->bss_conf.idle) { 3326 ret = -EBUSY; 3327 goto out; 3328 } 3329 3330 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 3331 3332 out: 3333 mutex_unlock(&mvm->mutex); 3334 return ret; 3335 } 3336 3337 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 3338 struct ieee80211_vif *vif) 3339 { 3340 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3341 int ret; 3342 3343 mutex_lock(&mvm->mutex); 3344 3345 /* Due to a race condition, it's possible that mac80211 asks 3346 * us to stop a sched_scan when it's already stopped. This 3347 * can happen, for instance, if we stopped the scan ourselves, 3348 * called ieee80211_sched_scan_stopped() and the userspace called 3349 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 3350 * could run. To handle this, simply return if the scan is 3351 * not running. 3352 */ 3353 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 3354 mutex_unlock(&mvm->mutex); 3355 return 0; 3356 } 3357 3358 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 3359 mutex_unlock(&mvm->mutex); 3360 iwl_mvm_wait_for_async_handlers(mvm); 3361 3362 return ret; 3363 } 3364 3365 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3366 enum set_key_cmd cmd, 3367 struct ieee80211_vif *vif, 3368 struct ieee80211_sta *sta, 3369 struct ieee80211_key_conf *key) 3370 { 3371 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3372 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3373 struct iwl_mvm_sta *mvmsta; 3374 struct iwl_mvm_key_pn *ptk_pn; 3375 int keyidx = key->keyidx; 3376 int ret, i; 3377 u8 key_offset; 3378 3379 switch (key->cipher) { 3380 case WLAN_CIPHER_SUITE_TKIP: 3381 if (!mvm->trans->trans_cfg->gen2) { 3382 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 3383 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3384 } else if (vif->type == NL80211_IFTYPE_STATION) { 3385 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 3386 } else { 3387 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 3388 return -EOPNOTSUPP; 3389 } 3390 break; 3391 case WLAN_CIPHER_SUITE_CCMP: 3392 case WLAN_CIPHER_SUITE_GCMP: 3393 case WLAN_CIPHER_SUITE_GCMP_256: 3394 if (!iwl_mvm_has_new_tx_api(mvm)) 3395 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3396 break; 3397 case WLAN_CIPHER_SUITE_AES_CMAC: 3398 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3399 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3400 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 3401 break; 3402 case WLAN_CIPHER_SUITE_WEP40: 3403 case WLAN_CIPHER_SUITE_WEP104: 3404 if (vif->type == NL80211_IFTYPE_STATION) 3405 break; 3406 if (iwl_mvm_has_new_tx_api(mvm)) 3407 return -EOPNOTSUPP; 3408 /* support HW crypto on TX */ 3409 return 0; 3410 default: 3411 /* currently FW supports only one optional cipher scheme */ 3412 if (hw->n_cipher_schemes && 3413 hw->cipher_schemes->cipher == key->cipher) 3414 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3415 else 3416 return -EOPNOTSUPP; 3417 } 3418 3419 switch (cmd) { 3420 case SET_KEY: 3421 if ((vif->type == NL80211_IFTYPE_ADHOC || 3422 vif->type == NL80211_IFTYPE_AP) && !sta) { 3423 /* 3424 * GTK on AP interface is a TX-only key, return 0; 3425 * on IBSS they're per-station and because we're lazy 3426 * we don't support them for RX, so do the same. 3427 * CMAC/GMAC in AP/IBSS modes must be done in software. 3428 */ 3429 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3430 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3431 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 3432 ret = -EOPNOTSUPP; 3433 else 3434 ret = 0; 3435 3436 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 3437 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 3438 !iwl_mvm_has_new_tx_api(mvm)) { 3439 key->hw_key_idx = STA_KEY_IDX_INVALID; 3440 break; 3441 } 3442 3443 if (!mvmvif->ap_ibss_active) { 3444 for (i = 0; 3445 i < ARRAY_SIZE(mvmvif->ap_early_keys); 3446 i++) { 3447 if (!mvmvif->ap_early_keys[i]) { 3448 mvmvif->ap_early_keys[i] = key; 3449 break; 3450 } 3451 } 3452 3453 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 3454 ret = -ENOSPC; 3455 3456 break; 3457 } 3458 } 3459 3460 /* During FW restart, in order to restore the state as it was, 3461 * don't try to reprogram keys we previously failed for. 3462 */ 3463 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3464 key->hw_key_idx == STA_KEY_IDX_INVALID) { 3465 IWL_DEBUG_MAC80211(mvm, 3466 "skip invalid idx key programming during restart\n"); 3467 ret = 0; 3468 break; 3469 } 3470 3471 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3472 sta && iwl_mvm_has_new_rx_api(mvm) && 3473 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3474 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3475 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3476 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3477 struct ieee80211_key_seq seq; 3478 int tid, q; 3479 3480 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3481 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 3482 ptk_pn = kzalloc(struct_size(ptk_pn, q, 3483 mvm->trans->num_rx_queues), 3484 GFP_KERNEL); 3485 if (!ptk_pn) { 3486 ret = -ENOMEM; 3487 break; 3488 } 3489 3490 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 3491 ieee80211_get_key_rx_seq(key, tid, &seq); 3492 for (q = 0; q < mvm->trans->num_rx_queues; q++) 3493 memcpy(ptk_pn->q[q].pn[tid], 3494 seq.ccmp.pn, 3495 IEEE80211_CCMP_PN_LEN); 3496 } 3497 3498 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 3499 } 3500 3501 /* in HW restart reuse the index, otherwise request a new one */ 3502 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3503 key_offset = key->hw_key_idx; 3504 else 3505 key_offset = STA_KEY_IDX_INVALID; 3506 3507 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); 3508 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 3509 if (ret) { 3510 IWL_WARN(mvm, "set key failed\n"); 3511 key->hw_key_idx = STA_KEY_IDX_INVALID; 3512 /* 3513 * can't add key for RX, but we don't need it 3514 * in the device for TX so still return 0, 3515 * unless we have new TX API where we cannot 3516 * put key material into the TX_CMD 3517 */ 3518 if (iwl_mvm_has_new_tx_api(mvm)) 3519 ret = -EOPNOTSUPP; 3520 else 3521 ret = 0; 3522 } 3523 3524 break; 3525 case DISABLE_KEY: 3526 ret = -ENOENT; 3527 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 3528 if (mvmvif->ap_early_keys[i] == key) { 3529 mvmvif->ap_early_keys[i] = NULL; 3530 ret = 0; 3531 } 3532 } 3533 3534 /* found in pending list - don't do anything else */ 3535 if (ret == 0) 3536 break; 3537 3538 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 3539 ret = 0; 3540 break; 3541 } 3542 3543 if (sta && iwl_mvm_has_new_rx_api(mvm) && 3544 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3545 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3546 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3547 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3548 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3549 ptk_pn = rcu_dereference_protected( 3550 mvmsta->ptk_pn[keyidx], 3551 lockdep_is_held(&mvm->mutex)); 3552 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 3553 if (ptk_pn) 3554 kfree_rcu(ptk_pn, rcu_head); 3555 } 3556 3557 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 3558 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 3559 break; 3560 default: 3561 ret = -EINVAL; 3562 } 3563 3564 return ret; 3565 } 3566 3567 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3568 enum set_key_cmd cmd, 3569 struct ieee80211_vif *vif, 3570 struct ieee80211_sta *sta, 3571 struct ieee80211_key_conf *key) 3572 { 3573 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3574 int ret; 3575 3576 mutex_lock(&mvm->mutex); 3577 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 3578 mutex_unlock(&mvm->mutex); 3579 3580 return ret; 3581 } 3582 3583 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 3584 struct ieee80211_vif *vif, 3585 struct ieee80211_key_conf *keyconf, 3586 struct ieee80211_sta *sta, 3587 u32 iv32, u16 *phase1key) 3588 { 3589 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3590 3591 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 3592 return; 3593 3594 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 3595 } 3596 3597 3598 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 3599 struct iwl_rx_packet *pkt, void *data) 3600 { 3601 struct iwl_mvm *mvm = 3602 container_of(notif_wait, struct iwl_mvm, notif_wait); 3603 struct iwl_hs20_roc_res *resp; 3604 int resp_len = iwl_rx_packet_payload_len(pkt); 3605 struct iwl_mvm_time_event_data *te_data = data; 3606 3607 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 3608 return true; 3609 3610 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 3611 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 3612 return true; 3613 } 3614 3615 resp = (void *)pkt->data; 3616 3617 IWL_DEBUG_TE(mvm, 3618 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 3619 resp->status, resp->event_unique_id); 3620 3621 te_data->uid = le32_to_cpu(resp->event_unique_id); 3622 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 3623 te_data->uid); 3624 3625 spin_lock_bh(&mvm->time_event_lock); 3626 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 3627 spin_unlock_bh(&mvm->time_event_lock); 3628 3629 return true; 3630 } 3631 3632 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 3633 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 3634 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 3635 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 3636 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 3637 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 3638 struct ieee80211_channel *channel, 3639 struct ieee80211_vif *vif, 3640 int duration) 3641 { 3642 int res; 3643 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3644 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 3645 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 3646 struct iwl_notification_wait wait_time_event; 3647 u32 dtim_interval = vif->bss_conf.dtim_period * 3648 vif->bss_conf.beacon_int; 3649 u32 req_dur, delay; 3650 struct iwl_hs20_roc_req aux_roc_req = { 3651 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 3652 .id_and_color = 3653 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 3654 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 3655 }; 3656 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 3657 &aux_roc_req.channel_info); 3658 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 3659 3660 /* Set the channel info data */ 3661 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 3662 iwl_mvm_phy_band_from_nl80211(channel->band), 3663 PHY_VHT_CHANNEL_MODE20, 3664 0); 3665 3666 /* Set the time and duration */ 3667 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 3668 3669 delay = AUX_ROC_MIN_DELAY; 3670 req_dur = MSEC_TO_TU(duration); 3671 3672 /* 3673 * If we are associated we want the delay time to be at least one 3674 * dtim interval so that the FW can wait until after the DTIM and 3675 * then start the time event, this will potentially allow us to 3676 * remain off-channel for the max duration. 3677 * Since we want to use almost a whole dtim interval we would also 3678 * like the delay to be for 2-3 dtim intervals, in case there are 3679 * other time events with higher priority. 3680 */ 3681 if (vif->bss_conf.assoc) { 3682 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 3683 /* We cannot remain off-channel longer than the DTIM interval */ 3684 if (dtim_interval <= req_dur) { 3685 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 3686 if (req_dur <= AUX_ROC_MIN_DURATION) 3687 req_dur = dtim_interval - 3688 AUX_ROC_MIN_SAFETY_BUFFER; 3689 } 3690 } 3691 3692 tail->duration = cpu_to_le32(req_dur); 3693 tail->apply_time_max_delay = cpu_to_le32(delay); 3694 3695 IWL_DEBUG_TE(mvm, 3696 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 3697 channel->hw_value, req_dur, duration, delay, 3698 dtim_interval); 3699 /* Set the node address */ 3700 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 3701 3702 lockdep_assert_held(&mvm->mutex); 3703 3704 spin_lock_bh(&mvm->time_event_lock); 3705 3706 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 3707 spin_unlock_bh(&mvm->time_event_lock); 3708 return -EIO; 3709 } 3710 3711 te_data->vif = vif; 3712 te_data->duration = duration; 3713 te_data->id = HOT_SPOT_CMD; 3714 3715 spin_unlock_bh(&mvm->time_event_lock); 3716 3717 /* 3718 * Use a notification wait, which really just processes the 3719 * command response and doesn't wait for anything, in order 3720 * to be able to process the response and get the UID inside 3721 * the RX path. Using CMD_WANT_SKB doesn't work because it 3722 * stores the buffer and then wakes up this thread, by which 3723 * time another notification (that the time event started) 3724 * might already be processed unsuccessfully. 3725 */ 3726 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 3727 time_event_response, 3728 ARRAY_SIZE(time_event_response), 3729 iwl_mvm_rx_aux_roc, te_data); 3730 3731 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 3732 &aux_roc_req); 3733 3734 if (res) { 3735 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 3736 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 3737 goto out_clear_te; 3738 } 3739 3740 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 3741 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 3742 /* should never fail */ 3743 WARN_ON_ONCE(res); 3744 3745 if (res) { 3746 out_clear_te: 3747 spin_lock_bh(&mvm->time_event_lock); 3748 iwl_mvm_te_clear_data(mvm, te_data); 3749 spin_unlock_bh(&mvm->time_event_lock); 3750 } 3751 3752 return res; 3753 } 3754 3755 static int iwl_mvm_roc(struct ieee80211_hw *hw, 3756 struct ieee80211_vif *vif, 3757 struct ieee80211_channel *channel, 3758 int duration, 3759 enum ieee80211_roc_type type) 3760 { 3761 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3762 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3763 struct cfg80211_chan_def chandef; 3764 struct iwl_mvm_phy_ctxt *phy_ctxt; 3765 int ret, i; 3766 3767 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 3768 duration, type); 3769 3770 /* 3771 * Flush the done work, just in case it's still pending, so that 3772 * the work it does can complete and we can accept new frames. 3773 */ 3774 flush_work(&mvm->roc_done_wk); 3775 3776 mutex_lock(&mvm->mutex); 3777 3778 switch (vif->type) { 3779 case NL80211_IFTYPE_STATION: 3780 if (fw_has_capa(&mvm->fw->ucode_capa, 3781 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 3782 /* Use aux roc framework (HS20) */ 3783 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 3784 vif, duration); 3785 goto out_unlock; 3786 } 3787 IWL_ERR(mvm, "hotspot not supported\n"); 3788 ret = -EINVAL; 3789 goto out_unlock; 3790 case NL80211_IFTYPE_P2P_DEVICE: 3791 /* handle below */ 3792 break; 3793 default: 3794 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 3795 ret = -EINVAL; 3796 goto out_unlock; 3797 } 3798 3799 for (i = 0; i < NUM_PHY_CTX; i++) { 3800 phy_ctxt = &mvm->phy_ctxts[i]; 3801 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) 3802 continue; 3803 3804 if (phy_ctxt->ref && channel == phy_ctxt->channel) { 3805 /* 3806 * Unbind the P2P_DEVICE from the current PHY context, 3807 * and if the PHY context is not used remove it. 3808 */ 3809 ret = iwl_mvm_binding_remove_vif(mvm, vif); 3810 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 3811 goto out_unlock; 3812 3813 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 3814 3815 /* Bind the P2P_DEVICE to the current PHY Context */ 3816 mvmvif->phy_ctxt = phy_ctxt; 3817 3818 ret = iwl_mvm_binding_add_vif(mvm, vif); 3819 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 3820 goto out_unlock; 3821 3822 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 3823 goto schedule_time_event; 3824 } 3825 } 3826 3827 /* Need to update the PHY context only if the ROC channel changed */ 3828 if (channel == mvmvif->phy_ctxt->channel) 3829 goto schedule_time_event; 3830 3831 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 3832 3833 /* 3834 * Change the PHY context configuration as it is currently referenced 3835 * only by the P2P Device MAC 3836 */ 3837 if (mvmvif->phy_ctxt->ref == 1) { 3838 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, 3839 &chandef, 1, 1); 3840 if (ret) 3841 goto out_unlock; 3842 } else { 3843 /* 3844 * The PHY context is shared with other MACs. Need to remove the 3845 * P2P Device from the binding, allocate an new PHY context and 3846 * create a new binding 3847 */ 3848 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 3849 if (!phy_ctxt) { 3850 ret = -ENOSPC; 3851 goto out_unlock; 3852 } 3853 3854 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 3855 1, 1); 3856 if (ret) { 3857 IWL_ERR(mvm, "Failed to change PHY context\n"); 3858 goto out_unlock; 3859 } 3860 3861 /* Unbind the P2P_DEVICE from the current PHY context */ 3862 ret = iwl_mvm_binding_remove_vif(mvm, vif); 3863 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 3864 goto out_unlock; 3865 3866 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 3867 3868 /* Bind the P2P_DEVICE to the new allocated PHY context */ 3869 mvmvif->phy_ctxt = phy_ctxt; 3870 3871 ret = iwl_mvm_binding_add_vif(mvm, vif); 3872 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 3873 goto out_unlock; 3874 3875 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 3876 } 3877 3878 schedule_time_event: 3879 /* Schedule the time events */ 3880 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 3881 3882 out_unlock: 3883 mutex_unlock(&mvm->mutex); 3884 IWL_DEBUG_MAC80211(mvm, "leave\n"); 3885 return ret; 3886 } 3887 3888 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 3889 struct ieee80211_vif *vif) 3890 { 3891 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3892 3893 IWL_DEBUG_MAC80211(mvm, "enter\n"); 3894 3895 mutex_lock(&mvm->mutex); 3896 iwl_mvm_stop_roc(mvm, vif); 3897 mutex_unlock(&mvm->mutex); 3898 3899 IWL_DEBUG_MAC80211(mvm, "leave\n"); 3900 return 0; 3901 } 3902 3903 struct iwl_mvm_ftm_responder_iter_data { 3904 bool responder; 3905 struct ieee80211_chanctx_conf *ctx; 3906 }; 3907 3908 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 3909 struct ieee80211_vif *vif) 3910 { 3911 struct iwl_mvm_ftm_responder_iter_data *data = _data; 3912 3913 if (rcu_access_pointer(vif->chanctx_conf) == data->ctx && 3914 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 3915 data->responder = true; 3916 } 3917 3918 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 3919 struct ieee80211_chanctx_conf *ctx) 3920 { 3921 struct iwl_mvm_ftm_responder_iter_data data = { 3922 .responder = false, 3923 .ctx = ctx, 3924 }; 3925 3926 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 3927 IEEE80211_IFACE_ITER_NORMAL, 3928 iwl_mvm_ftm_responder_chanctx_iter, 3929 &data); 3930 return data.responder; 3931 } 3932 3933 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 3934 struct ieee80211_chanctx_conf *ctx) 3935 { 3936 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3937 struct iwl_mvm_phy_ctxt *phy_ctxt; 3938 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 3939 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 3940 int ret; 3941 3942 lockdep_assert_held(&mvm->mutex); 3943 3944 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 3945 3946 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 3947 if (!phy_ctxt) { 3948 ret = -ENOSPC; 3949 goto out; 3950 } 3951 3952 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 3953 ctx->rx_chains_static, 3954 ctx->rx_chains_dynamic); 3955 if (ret) { 3956 IWL_ERR(mvm, "Failed to add PHY context\n"); 3957 goto out; 3958 } 3959 3960 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 3961 *phy_ctxt_id = phy_ctxt->id; 3962 out: 3963 return ret; 3964 } 3965 3966 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 3967 struct ieee80211_chanctx_conf *ctx) 3968 { 3969 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3970 int ret; 3971 3972 mutex_lock(&mvm->mutex); 3973 ret = __iwl_mvm_add_chanctx(mvm, ctx); 3974 mutex_unlock(&mvm->mutex); 3975 3976 return ret; 3977 } 3978 3979 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 3980 struct ieee80211_chanctx_conf *ctx) 3981 { 3982 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3983 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3984 3985 lockdep_assert_held(&mvm->mutex); 3986 3987 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 3988 } 3989 3990 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 3991 struct ieee80211_chanctx_conf *ctx) 3992 { 3993 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3994 3995 mutex_lock(&mvm->mutex); 3996 __iwl_mvm_remove_chanctx(mvm, ctx); 3997 mutex_unlock(&mvm->mutex); 3998 } 3999 4000 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4001 struct ieee80211_chanctx_conf *ctx, 4002 u32 changed) 4003 { 4004 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4005 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4006 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4007 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4008 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4009 4010 if (WARN_ONCE((phy_ctxt->ref > 1) && 4011 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4012 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4013 IEEE80211_CHANCTX_CHANGE_RADAR | 4014 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4015 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4016 phy_ctxt->ref, changed)) 4017 return; 4018 4019 mutex_lock(&mvm->mutex); 4020 4021 /* we are only changing the min_width, may be a noop */ 4022 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4023 if (phy_ctxt->width == def->width) 4024 goto out_unlock; 4025 4026 /* we are just toggling between 20_NOHT and 20 */ 4027 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4028 def->width <= NL80211_CHAN_WIDTH_20) 4029 goto out_unlock; 4030 } 4031 4032 iwl_mvm_bt_coex_vif_change(mvm); 4033 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4034 ctx->rx_chains_static, 4035 ctx->rx_chains_dynamic); 4036 4037 out_unlock: 4038 mutex_unlock(&mvm->mutex); 4039 } 4040 4041 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4042 struct ieee80211_vif *vif, 4043 struct ieee80211_chanctx_conf *ctx, 4044 bool switching_chanctx) 4045 { 4046 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4047 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4048 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4049 int ret; 4050 4051 lockdep_assert_held(&mvm->mutex); 4052 4053 mvmvif->phy_ctxt = phy_ctxt; 4054 4055 switch (vif->type) { 4056 case NL80211_IFTYPE_AP: 4057 /* only needed if we're switching chanctx (i.e. during CSA) */ 4058 if (switching_chanctx) { 4059 mvmvif->ap_ibss_active = true; 4060 break; 4061 } 4062 /* fall through */ 4063 case NL80211_IFTYPE_ADHOC: 4064 /* 4065 * The AP binding flow is handled as part of the start_ap flow 4066 * (in bss_info_changed), similarly for IBSS. 4067 */ 4068 ret = 0; 4069 goto out; 4070 case NL80211_IFTYPE_STATION: 4071 mvmvif->csa_bcn_pending = false; 4072 break; 4073 case NL80211_IFTYPE_MONITOR: 4074 /* always disable PS when a monitor interface is active */ 4075 mvmvif->ps_disabled = true; 4076 break; 4077 default: 4078 ret = -EINVAL; 4079 goto out; 4080 } 4081 4082 ret = iwl_mvm_binding_add_vif(mvm, vif); 4083 if (ret) 4084 goto out; 4085 4086 /* 4087 * Power state must be updated before quotas, 4088 * otherwise fw will complain. 4089 */ 4090 iwl_mvm_power_update_mac(mvm); 4091 4092 /* Setting the quota at this stage is only required for monitor 4093 * interfaces. For the other types, the bss_info changed flow 4094 * will handle quota settings. 4095 */ 4096 if (vif->type == NL80211_IFTYPE_MONITOR) { 4097 mvmvif->monitor_active = true; 4098 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4099 if (ret) 4100 goto out_remove_binding; 4101 4102 ret = iwl_mvm_add_snif_sta(mvm, vif); 4103 if (ret) 4104 goto out_remove_binding; 4105 4106 } 4107 4108 /* Handle binding during CSA */ 4109 if (vif->type == NL80211_IFTYPE_AP) { 4110 iwl_mvm_update_quotas(mvm, false, NULL); 4111 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4112 } 4113 4114 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { 4115 mvmvif->csa_bcn_pending = true; 4116 4117 if (!fw_has_capa(&mvm->fw->ucode_capa, 4118 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4119 u32 duration = 3 * vif->bss_conf.beacon_int; 4120 4121 /* Protect the session to make sure we hear the first 4122 * beacon on the new channel. 4123 */ 4124 iwl_mvm_protect_session(mvm, vif, duration, duration, 4125 vif->bss_conf.beacon_int / 2, 4126 true); 4127 } 4128 4129 iwl_mvm_update_quotas(mvm, false, NULL); 4130 } 4131 4132 goto out; 4133 4134 out_remove_binding: 4135 iwl_mvm_binding_remove_vif(mvm, vif); 4136 iwl_mvm_power_update_mac(mvm); 4137 out: 4138 if (ret) 4139 mvmvif->phy_ctxt = NULL; 4140 return ret; 4141 } 4142 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 4143 struct ieee80211_vif *vif, 4144 struct ieee80211_chanctx_conf *ctx) 4145 { 4146 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4147 int ret; 4148 4149 mutex_lock(&mvm->mutex); 4150 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); 4151 mutex_unlock(&mvm->mutex); 4152 4153 return ret; 4154 } 4155 4156 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 4157 struct ieee80211_vif *vif, 4158 struct ieee80211_chanctx_conf *ctx, 4159 bool switching_chanctx) 4160 { 4161 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4162 struct ieee80211_vif *disabled_vif = NULL; 4163 4164 lockdep_assert_held(&mvm->mutex); 4165 4166 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); 4167 4168 switch (vif->type) { 4169 case NL80211_IFTYPE_ADHOC: 4170 goto out; 4171 case NL80211_IFTYPE_MONITOR: 4172 mvmvif->monitor_active = false; 4173 mvmvif->ps_disabled = false; 4174 iwl_mvm_rm_snif_sta(mvm, vif); 4175 break; 4176 case NL80211_IFTYPE_AP: 4177 /* This part is triggered only during CSA */ 4178 if (!switching_chanctx || !mvmvif->ap_ibss_active) 4179 goto out; 4180 4181 mvmvif->csa_countdown = false; 4182 4183 /* Set CS bit on all the stations */ 4184 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 4185 4186 /* Save blocked iface, the timeout is set on the next beacon */ 4187 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 4188 4189 mvmvif->ap_ibss_active = false; 4190 break; 4191 case NL80211_IFTYPE_STATION: 4192 if (!switching_chanctx) 4193 break; 4194 4195 disabled_vif = vif; 4196 4197 if (!fw_has_capa(&mvm->fw->ucode_capa, 4198 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 4199 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 4200 break; 4201 default: 4202 break; 4203 } 4204 4205 iwl_mvm_update_quotas(mvm, false, disabled_vif); 4206 iwl_mvm_binding_remove_vif(mvm, vif); 4207 4208 out: 4209 mvmvif->phy_ctxt = NULL; 4210 iwl_mvm_power_update_mac(mvm); 4211 } 4212 4213 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 4214 struct ieee80211_vif *vif, 4215 struct ieee80211_chanctx_conf *ctx) 4216 { 4217 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4218 4219 mutex_lock(&mvm->mutex); 4220 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); 4221 mutex_unlock(&mvm->mutex); 4222 } 4223 4224 static int 4225 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 4226 struct ieee80211_vif_chanctx_switch *vifs) 4227 { 4228 int ret; 4229 4230 mutex_lock(&mvm->mutex); 4231 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4232 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 4233 4234 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 4235 if (ret) { 4236 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 4237 goto out_reassign; 4238 } 4239 4240 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4241 true); 4242 if (ret) { 4243 IWL_ERR(mvm, 4244 "failed to assign new_ctx during channel switch\n"); 4245 goto out_remove; 4246 } 4247 4248 /* we don't support TDLS during DCM - can be caused by channel switch */ 4249 if (iwl_mvm_phy_ctx_count(mvm) > 1) 4250 iwl_mvm_teardown_tdls_peers(mvm); 4251 4252 goto out; 4253 4254 out_remove: 4255 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 4256 4257 out_reassign: 4258 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 4259 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 4260 goto out_restart; 4261 } 4262 4263 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4264 true)) { 4265 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4266 goto out_restart; 4267 } 4268 4269 goto out; 4270 4271 out_restart: 4272 /* things keep failing, better restart the hw */ 4273 iwl_mvm_nic_restart(mvm, false); 4274 4275 out: 4276 mutex_unlock(&mvm->mutex); 4277 4278 return ret; 4279 } 4280 4281 static int 4282 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 4283 struct ieee80211_vif_chanctx_switch *vifs) 4284 { 4285 int ret; 4286 4287 mutex_lock(&mvm->mutex); 4288 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4289 4290 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4291 true); 4292 if (ret) { 4293 IWL_ERR(mvm, 4294 "failed to assign new_ctx during channel switch\n"); 4295 goto out_reassign; 4296 } 4297 4298 goto out; 4299 4300 out_reassign: 4301 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4302 true)) { 4303 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4304 goto out_restart; 4305 } 4306 4307 goto out; 4308 4309 out_restart: 4310 /* things keep failing, better restart the hw */ 4311 iwl_mvm_nic_restart(mvm, false); 4312 4313 out: 4314 mutex_unlock(&mvm->mutex); 4315 4316 return ret; 4317 } 4318 4319 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 4320 struct ieee80211_vif_chanctx_switch *vifs, 4321 int n_vifs, 4322 enum ieee80211_chanctx_switch_mode mode) 4323 { 4324 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4325 int ret; 4326 4327 /* we only support a single-vif right now */ 4328 if (n_vifs > 1) 4329 return -EOPNOTSUPP; 4330 4331 switch (mode) { 4332 case CHANCTX_SWMODE_SWAP_CONTEXTS: 4333 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); 4334 break; 4335 case CHANCTX_SWMODE_REASSIGN_VIF: 4336 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); 4337 break; 4338 default: 4339 ret = -EOPNOTSUPP; 4340 break; 4341 } 4342 4343 return ret; 4344 } 4345 4346 static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 4347 { 4348 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4349 4350 return mvm->ibss_manager; 4351 } 4352 4353 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, 4354 struct ieee80211_sta *sta, 4355 bool set) 4356 { 4357 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4358 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4359 4360 if (!mvm_sta || !mvm_sta->vif) { 4361 IWL_ERR(mvm, "Station is not associated to a vif\n"); 4362 return -EINVAL; 4363 } 4364 4365 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); 4366 } 4367 4368 #ifdef CONFIG_NL80211_TESTMODE 4369 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 4370 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 4371 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 4372 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 4373 }; 4374 4375 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 4376 struct ieee80211_vif *vif, 4377 void *data, int len) 4378 { 4379 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 4380 int err; 4381 u32 noa_duration; 4382 4383 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 4384 iwl_mvm_tm_policy, NULL); 4385 if (err) 4386 return err; 4387 4388 if (!tb[IWL_MVM_TM_ATTR_CMD]) 4389 return -EINVAL; 4390 4391 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 4392 case IWL_MVM_TM_CMD_SET_NOA: 4393 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 4394 !vif->bss_conf.enable_beacon || 4395 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 4396 return -EINVAL; 4397 4398 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 4399 if (noa_duration >= vif->bss_conf.beacon_int) 4400 return -EINVAL; 4401 4402 mvm->noa_duration = noa_duration; 4403 mvm->noa_vif = vif; 4404 4405 return iwl_mvm_update_quotas(mvm, true, NULL); 4406 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 4407 /* must be associated client vif - ignore authorized */ 4408 if (!vif || vif->type != NL80211_IFTYPE_STATION || 4409 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || 4410 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 4411 return -EINVAL; 4412 4413 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 4414 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 4415 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4416 } 4417 4418 return -EOPNOTSUPP; 4419 } 4420 4421 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 4422 struct ieee80211_vif *vif, 4423 void *data, int len) 4424 { 4425 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4426 int err; 4427 4428 mutex_lock(&mvm->mutex); 4429 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 4430 mutex_unlock(&mvm->mutex); 4431 4432 return err; 4433 } 4434 #endif 4435 4436 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, 4437 struct ieee80211_vif *vif, 4438 struct ieee80211_channel_switch *chsw) 4439 { 4440 /* By implementing this operation, we prevent mac80211 from 4441 * starting its own channel switch timer, so that we can call 4442 * ieee80211_chswitch_done() ourselves at the right time 4443 * (which is when the absence time event starts). 4444 */ 4445 4446 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 4447 "dummy channel switch op\n"); 4448 } 4449 4450 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 4451 struct ieee80211_vif *vif, 4452 struct ieee80211_channel_switch *chsw) 4453 { 4454 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4455 struct iwl_chan_switch_te_cmd cmd = { 4456 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4457 mvmvif->color)), 4458 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4459 .tsf = cpu_to_le32(chsw->timestamp), 4460 .cs_count = chsw->count, 4461 .cs_mode = chsw->block_tx, 4462 }; 4463 4464 lockdep_assert_held(&mvm->mutex); 4465 4466 if (chsw->delay) 4467 cmd.cs_delayed_bcn_count = 4468 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 4469 4470 return iwl_mvm_send_cmd_pdu(mvm, 4471 WIDE_ID(MAC_CONF_GROUP, 4472 CHANNEL_SWITCH_TIME_EVENT_CMD), 4473 0, sizeof(cmd), &cmd); 4474 } 4475 4476 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 4477 struct ieee80211_vif *vif, 4478 struct ieee80211_channel_switch *chsw) 4479 { 4480 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4481 u32 apply_time; 4482 4483 /* Schedule the time event to a bit before beacon 1, 4484 * to make sure we're in the new channel when the 4485 * GO/AP arrives. In case count <= 1 immediately schedule the 4486 * TE (this might result with some packet loss or connection 4487 * loss). 4488 */ 4489 if (chsw->count <= 1) 4490 apply_time = 0; 4491 else 4492 apply_time = chsw->device_timestamp + 4493 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 4494 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 4495 4496 if (chsw->block_tx) 4497 iwl_mvm_csa_client_absent(mvm, vif); 4498 4499 if (mvmvif->bf_data.bf_enabled) { 4500 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4501 4502 if (ret) 4503 return ret; 4504 } 4505 4506 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 4507 apply_time); 4508 4509 return 0; 4510 } 4511 4512 #define IWL_MAX_CSA_BLOCK_TX 1500 4513 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 4514 struct ieee80211_vif *vif, 4515 struct ieee80211_channel_switch *chsw) 4516 { 4517 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4518 struct ieee80211_vif *csa_vif; 4519 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4520 int ret; 4521 4522 mutex_lock(&mvm->mutex); 4523 4524 mvmvif->csa_failed = false; 4525 4526 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 4527 chsw->chandef.center_freq1); 4528 4529 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 4530 ieee80211_vif_to_wdev(vif), 4531 FW_DBG_TRIGGER_CHANNEL_SWITCH); 4532 4533 switch (vif->type) { 4534 case NL80211_IFTYPE_AP: 4535 csa_vif = 4536 rcu_dereference_protected(mvm->csa_vif, 4537 lockdep_is_held(&mvm->mutex)); 4538 if (WARN_ONCE(csa_vif && csa_vif->csa_active, 4539 "Another CSA is already in progress")) { 4540 ret = -EBUSY; 4541 goto out_unlock; 4542 } 4543 4544 /* we still didn't unblock tx. prevent new CS meanwhile */ 4545 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 4546 lockdep_is_held(&mvm->mutex))) { 4547 ret = -EBUSY; 4548 goto out_unlock; 4549 } 4550 4551 rcu_assign_pointer(mvm->csa_vif, vif); 4552 4553 if (WARN_ONCE(mvmvif->csa_countdown, 4554 "Previous CSA countdown didn't complete")) { 4555 ret = -EBUSY; 4556 goto out_unlock; 4557 } 4558 4559 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 4560 4561 break; 4562 case NL80211_IFTYPE_STATION: 4563 if (chsw->block_tx) { 4564 /* 4565 * In case of undetermined / long time with immediate 4566 * quiet monitor status to gracefully disconnect 4567 */ 4568 if (!chsw->count || 4569 chsw->count * vif->bss_conf.beacon_int > 4570 IWL_MAX_CSA_BLOCK_TX) 4571 schedule_delayed_work(&mvmvif->csa_work, 4572 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 4573 } 4574 4575 if (!fw_has_capa(&mvm->fw->ucode_capa, 4576 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4577 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 4578 if (ret) 4579 goto out_unlock; 4580 } else { 4581 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 4582 } 4583 4584 mvmvif->csa_count = chsw->count; 4585 mvmvif->csa_misbehave = false; 4586 break; 4587 default: 4588 break; 4589 } 4590 4591 mvmvif->ps_disabled = true; 4592 4593 ret = iwl_mvm_power_update_ps(mvm); 4594 if (ret) 4595 goto out_unlock; 4596 4597 /* we won't be on this channel any longer */ 4598 iwl_mvm_teardown_tdls_peers(mvm); 4599 4600 out_unlock: 4601 mutex_unlock(&mvm->mutex); 4602 4603 return ret; 4604 } 4605 4606 static void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 4607 struct ieee80211_vif *vif, 4608 struct ieee80211_channel_switch *chsw) 4609 { 4610 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4611 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4612 struct iwl_chan_switch_te_cmd cmd = { 4613 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4614 mvmvif->color)), 4615 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 4616 .tsf = cpu_to_le32(chsw->timestamp), 4617 .cs_count = chsw->count, 4618 .cs_mode = chsw->block_tx, 4619 }; 4620 4621 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 4622 return; 4623 4624 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 4625 if (mvmvif->csa_misbehave) { 4626 /* Second time, give up on this AP*/ 4627 iwl_mvm_abort_channel_switch(hw, vif); 4628 ieee80211_chswitch_done(vif, false); 4629 mvmvif->csa_misbehave = false; 4630 return; 4631 } 4632 mvmvif->csa_misbehave = true; 4633 } 4634 mvmvif->csa_count = chsw->count; 4635 4636 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d\n", mvmvif->id); 4637 4638 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 4639 WIDE_ID(MAC_CONF_GROUP, 4640 CHANNEL_SWITCH_TIME_EVENT_CMD), 4641 CMD_ASYNC, sizeof(cmd), &cmd)); 4642 } 4643 4644 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 4645 { 4646 int i; 4647 4648 if (!iwl_mvm_has_new_tx_api(mvm)) { 4649 if (drop) { 4650 mutex_lock(&mvm->mutex); 4651 iwl_mvm_flush_tx_path(mvm, 4652 iwl_mvm_flushable_queues(mvm) & queues, 0); 4653 mutex_unlock(&mvm->mutex); 4654 } else { 4655 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 4656 } 4657 return; 4658 } 4659 4660 mutex_lock(&mvm->mutex); 4661 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 4662 struct ieee80211_sta *sta; 4663 4664 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4665 lockdep_is_held(&mvm->mutex)); 4666 if (IS_ERR_OR_NULL(sta)) 4667 continue; 4668 4669 if (drop) 4670 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF, 0); 4671 else 4672 iwl_mvm_wait_sta_queues_empty(mvm, 4673 iwl_mvm_sta_from_mac80211(sta)); 4674 } 4675 mutex_unlock(&mvm->mutex); 4676 } 4677 4678 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, 4679 struct ieee80211_vif *vif, u32 queues, bool drop) 4680 { 4681 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4682 struct iwl_mvm_vif *mvmvif; 4683 struct iwl_mvm_sta *mvmsta; 4684 struct ieee80211_sta *sta; 4685 int i; 4686 u32 msk = 0; 4687 4688 if (!vif) { 4689 iwl_mvm_flush_no_vif(mvm, queues, drop); 4690 return; 4691 } 4692 4693 if (vif->type != NL80211_IFTYPE_STATION) 4694 return; 4695 4696 /* Make sure we're done with the deferred traffic before flushing */ 4697 flush_work(&mvm->add_stream_wk); 4698 4699 mutex_lock(&mvm->mutex); 4700 mvmvif = iwl_mvm_vif_from_mac80211(vif); 4701 4702 /* flush the AP-station and all TDLS peers */ 4703 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 4704 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4705 lockdep_is_held(&mvm->mutex)); 4706 if (IS_ERR_OR_NULL(sta)) 4707 continue; 4708 4709 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4710 if (mvmsta->vif != vif) 4711 continue; 4712 4713 /* make sure only TDLS peers or the AP are flushed */ 4714 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); 4715 4716 if (drop) { 4717 if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0)) 4718 IWL_ERR(mvm, "flush request fail\n"); 4719 } else { 4720 msk |= mvmsta->tfd_queue_msk; 4721 if (iwl_mvm_has_new_tx_api(mvm)) 4722 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 4723 } 4724 } 4725 4726 mutex_unlock(&mvm->mutex); 4727 4728 /* this can take a while, and we may need/want other operations 4729 * to succeed while doing this, so do it without the mutex held 4730 */ 4731 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 4732 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 4733 } 4734 4735 static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 4736 struct survey_info *survey) 4737 { 4738 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4739 int ret; 4740 4741 memset(survey, 0, sizeof(*survey)); 4742 4743 /* only support global statistics right now */ 4744 if (idx != 0) 4745 return -ENOENT; 4746 4747 if (!fw_has_capa(&mvm->fw->ucode_capa, 4748 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 4749 return -ENOENT; 4750 4751 mutex_lock(&mvm->mutex); 4752 4753 if (iwl_mvm_firmware_running(mvm)) { 4754 ret = iwl_mvm_request_statistics(mvm, false); 4755 if (ret) 4756 goto out; 4757 } 4758 4759 survey->filled = SURVEY_INFO_TIME | 4760 SURVEY_INFO_TIME_RX | 4761 SURVEY_INFO_TIME_TX | 4762 SURVEY_INFO_TIME_SCAN; 4763 survey->time = mvm->accu_radio_stats.on_time_rf + 4764 mvm->radio_stats.on_time_rf; 4765 do_div(survey->time, USEC_PER_MSEC); 4766 4767 survey->time_rx = mvm->accu_radio_stats.rx_time + 4768 mvm->radio_stats.rx_time; 4769 do_div(survey->time_rx, USEC_PER_MSEC); 4770 4771 survey->time_tx = mvm->accu_radio_stats.tx_time + 4772 mvm->radio_stats.tx_time; 4773 do_div(survey->time_tx, USEC_PER_MSEC); 4774 4775 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 4776 mvm->radio_stats.on_time_scan; 4777 do_div(survey->time_scan, USEC_PER_MSEC); 4778 4779 ret = 0; 4780 out: 4781 mutex_unlock(&mvm->mutex); 4782 return ret; 4783 } 4784 4785 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 4786 { 4787 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 4788 case RATE_MCS_CHAN_WIDTH_20: 4789 rinfo->bw = RATE_INFO_BW_20; 4790 break; 4791 case RATE_MCS_CHAN_WIDTH_40: 4792 rinfo->bw = RATE_INFO_BW_40; 4793 break; 4794 case RATE_MCS_CHAN_WIDTH_80: 4795 rinfo->bw = RATE_INFO_BW_80; 4796 break; 4797 case RATE_MCS_CHAN_WIDTH_160: 4798 rinfo->bw = RATE_INFO_BW_160; 4799 break; 4800 } 4801 4802 if (rate_n_flags & RATE_MCS_HT_MSK) { 4803 rinfo->flags |= RATE_INFO_FLAGS_MCS; 4804 rinfo->mcs = u32_get_bits(rate_n_flags, RATE_HT_MCS_INDEX_MSK); 4805 rinfo->nss = u32_get_bits(rate_n_flags, 4806 RATE_HT_MCS_NSS_MSK) + 1; 4807 if (rate_n_flags & RATE_MCS_SGI_MSK) 4808 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 4809 } else if (rate_n_flags & RATE_MCS_VHT_MSK) { 4810 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 4811 rinfo->mcs = u32_get_bits(rate_n_flags, 4812 RATE_VHT_MCS_RATE_CODE_MSK); 4813 rinfo->nss = u32_get_bits(rate_n_flags, 4814 RATE_VHT_MCS_NSS_MSK) + 1; 4815 if (rate_n_flags & RATE_MCS_SGI_MSK) 4816 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 4817 } else if (rate_n_flags & RATE_MCS_HE_MSK) { 4818 u32 gi_ltf = u32_get_bits(rate_n_flags, 4819 RATE_MCS_HE_GI_LTF_MSK); 4820 4821 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 4822 rinfo->mcs = u32_get_bits(rate_n_flags, 4823 RATE_VHT_MCS_RATE_CODE_MSK); 4824 rinfo->nss = u32_get_bits(rate_n_flags, 4825 RATE_VHT_MCS_NSS_MSK) + 1; 4826 4827 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 4828 rinfo->bw = RATE_INFO_BW_HE_RU; 4829 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 4830 } 4831 4832 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 4833 case RATE_MCS_HE_TYPE_SU: 4834 case RATE_MCS_HE_TYPE_EXT_SU: 4835 if (gi_ltf == 0 || gi_ltf == 1) 4836 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 4837 else if (gi_ltf == 2) 4838 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 4839 else if (rate_n_flags & RATE_MCS_SGI_MSK) 4840 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 4841 else 4842 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 4843 break; 4844 case RATE_MCS_HE_TYPE_MU: 4845 if (gi_ltf == 0 || gi_ltf == 1) 4846 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 4847 else if (gi_ltf == 2) 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 case RATE_MCS_HE_TYPE_TRIG: 4853 if (gi_ltf == 0 || gi_ltf == 1) 4854 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 4855 else 4856 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 4857 break; 4858 } 4859 4860 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 4861 rinfo->he_dcm = 1; 4862 } else { 4863 switch (u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK)) { 4864 case IWL_RATE_1M_PLCP: 4865 rinfo->legacy = 10; 4866 break; 4867 case IWL_RATE_2M_PLCP: 4868 rinfo->legacy = 20; 4869 break; 4870 case IWL_RATE_5M_PLCP: 4871 rinfo->legacy = 55; 4872 break; 4873 case IWL_RATE_11M_PLCP: 4874 rinfo->legacy = 110; 4875 break; 4876 case IWL_RATE_6M_PLCP: 4877 rinfo->legacy = 60; 4878 break; 4879 case IWL_RATE_9M_PLCP: 4880 rinfo->legacy = 90; 4881 break; 4882 case IWL_RATE_12M_PLCP: 4883 rinfo->legacy = 120; 4884 break; 4885 case IWL_RATE_18M_PLCP: 4886 rinfo->legacy = 180; 4887 break; 4888 case IWL_RATE_24M_PLCP: 4889 rinfo->legacy = 240; 4890 break; 4891 case IWL_RATE_36M_PLCP: 4892 rinfo->legacy = 360; 4893 break; 4894 case IWL_RATE_48M_PLCP: 4895 rinfo->legacy = 480; 4896 break; 4897 case IWL_RATE_54M_PLCP: 4898 rinfo->legacy = 540; 4899 break; 4900 } 4901 } 4902 } 4903 4904 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 4905 struct ieee80211_vif *vif, 4906 struct ieee80211_sta *sta, 4907 struct station_info *sinfo) 4908 { 4909 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4910 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4911 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 4912 4913 if (mvmsta->avg_energy) { 4914 sinfo->signal_avg = -(s8)mvmsta->avg_energy; 4915 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 4916 } 4917 4918 if (iwl_mvm_has_tlc_offload(mvm)) { 4919 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw; 4920 4921 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 4922 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 4923 } 4924 4925 /* if beacon filtering isn't on mac80211 does it anyway */ 4926 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 4927 return; 4928 4929 if (!vif->bss_conf.assoc) 4930 return; 4931 4932 mutex_lock(&mvm->mutex); 4933 4934 if (mvmvif->ap_sta_id != mvmsta->sta_id) 4935 goto unlock; 4936 4937 if (iwl_mvm_request_statistics(mvm, false)) 4938 goto unlock; 4939 4940 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + 4941 mvmvif->beacon_stats.accu_num_beacons; 4942 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 4943 if (mvmvif->beacon_stats.avg_signal) { 4944 /* firmware only reports a value after RXing a few beacons */ 4945 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; 4946 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 4947 } 4948 unlock: 4949 mutex_unlock(&mvm->mutex); 4950 } 4951 4952 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 4953 struct ieee80211_vif *vif, 4954 const struct ieee80211_event *event) 4955 { 4956 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 4957 do { \ 4958 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 4959 break; \ 4960 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 4961 } while (0) 4962 4963 struct iwl_fw_dbg_trigger_tlv *trig; 4964 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 4965 4966 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 4967 FW_DBG_TRIGGER_MLME); 4968 if (!trig) 4969 return; 4970 4971 trig_mlme = (void *)trig->data; 4972 4973 if (event->u.mlme.data == ASSOC_EVENT) { 4974 if (event->u.mlme.status == MLME_DENIED) 4975 CHECK_MLME_TRIGGER(stop_assoc_denied, 4976 "DENIED ASSOC: reason %d", 4977 event->u.mlme.reason); 4978 else if (event->u.mlme.status == MLME_TIMEOUT) 4979 CHECK_MLME_TRIGGER(stop_assoc_timeout, 4980 "ASSOC TIMEOUT"); 4981 } else if (event->u.mlme.data == AUTH_EVENT) { 4982 if (event->u.mlme.status == MLME_DENIED) 4983 CHECK_MLME_TRIGGER(stop_auth_denied, 4984 "DENIED AUTH: reason %d", 4985 event->u.mlme.reason); 4986 else if (event->u.mlme.status == MLME_TIMEOUT) 4987 CHECK_MLME_TRIGGER(stop_auth_timeout, 4988 "AUTH TIMEOUT"); 4989 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 4990 CHECK_MLME_TRIGGER(stop_rx_deauth, 4991 "DEAUTH RX %d", event->u.mlme.reason); 4992 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 4993 CHECK_MLME_TRIGGER(stop_tx_deauth, 4994 "DEAUTH TX %d", event->u.mlme.reason); 4995 } 4996 #undef CHECK_MLME_TRIGGER 4997 } 4998 4999 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 5000 struct ieee80211_vif *vif, 5001 const struct ieee80211_event *event) 5002 { 5003 struct iwl_fw_dbg_trigger_tlv *trig; 5004 struct iwl_fw_dbg_trigger_ba *ba_trig; 5005 5006 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5007 FW_DBG_TRIGGER_BA); 5008 if (!trig) 5009 return; 5010 5011 ba_trig = (void *)trig->data; 5012 5013 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 5014 return; 5015 5016 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 5017 "BAR received from %pM, tid %d, ssn %d", 5018 event->u.ba.sta->addr, event->u.ba.tid, 5019 event->u.ba.ssn); 5020 } 5021 5022 static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 5023 struct ieee80211_vif *vif, 5024 const struct ieee80211_event *event) 5025 { 5026 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5027 5028 switch (event->type) { 5029 case MLME_EVENT: 5030 iwl_mvm_event_mlme_callback(mvm, vif, event); 5031 break; 5032 case BAR_RX_EVENT: 5033 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 5034 break; 5035 case BA_FRAME_TIMEOUT: 5036 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 5037 event->u.ba.tid); 5038 break; 5039 default: 5040 break; 5041 } 5042 } 5043 5044 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 5045 struct iwl_mvm_internal_rxq_notif *notif, 5046 u32 size) 5047 { 5048 u32 qmask = BIT(mvm->trans->num_rx_queues) - 1; 5049 int ret; 5050 5051 5052 if (!iwl_mvm_has_new_rx_api(mvm)) 5053 return; 5054 5055 if (notif->sync) { 5056 notif->cookie = mvm->queue_sync_cookie; 5057 atomic_set(&mvm->queue_sync_counter, 5058 mvm->trans->num_rx_queues); 5059 } 5060 5061 ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, 5062 size, !notif->sync); 5063 if (ret) { 5064 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 5065 goto out; 5066 } 5067 5068 if (notif->sync) { 5069 lockdep_assert_held(&mvm->mutex); 5070 ret = wait_event_timeout(mvm->rx_sync_waitq, 5071 atomic_read(&mvm->queue_sync_counter) == 0 || 5072 iwl_mvm_is_radio_killed(mvm), 5073 HZ); 5074 WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm)); 5075 } 5076 5077 out: 5078 atomic_set(&mvm->queue_sync_counter, 0); 5079 if (notif->sync) 5080 mvm->queue_sync_cookie++; 5081 } 5082 5083 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 5084 { 5085 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5086 struct iwl_mvm_internal_rxq_notif data = { 5087 .type = IWL_MVM_RXQ_EMPTY, 5088 .sync = 1, 5089 }; 5090 5091 mutex_lock(&mvm->mutex); 5092 iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data)); 5093 mutex_unlock(&mvm->mutex); 5094 } 5095 5096 static int 5097 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 5098 struct ieee80211_vif *vif, 5099 struct cfg80211_ftm_responder_stats *stats) 5100 { 5101 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5102 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5103 5104 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 5105 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 5106 return -EINVAL; 5107 5108 mutex_lock(&mvm->mutex); 5109 *stats = mvm->ftm_resp_stats; 5110 mutex_unlock(&mvm->mutex); 5111 5112 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 5113 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 5114 BIT(NL80211_FTM_STATS_FAILED_NUM) | 5115 BIT(NL80211_FTM_STATS_ASAP_NUM) | 5116 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 5117 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 5118 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 5119 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 5120 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 5121 5122 return 0; 5123 } 5124 5125 static int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, 5126 struct ieee80211_vif *vif, 5127 struct cfg80211_pmsr_request *request) 5128 { 5129 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5130 int ret; 5131 5132 mutex_lock(&mvm->mutex); 5133 ret = iwl_mvm_ftm_start(mvm, vif, request); 5134 mutex_unlock(&mvm->mutex); 5135 5136 return ret; 5137 } 5138 5139 static void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, 5140 struct ieee80211_vif *vif, 5141 struct cfg80211_pmsr_request *request) 5142 { 5143 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5144 5145 mutex_lock(&mvm->mutex); 5146 iwl_mvm_ftm_abort(mvm, request); 5147 mutex_unlock(&mvm->mutex); 5148 } 5149 5150 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 5151 { 5152 u8 protocol = ip_hdr(skb)->protocol; 5153 5154 if (!IS_ENABLED(CONFIG_INET)) 5155 return false; 5156 5157 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 5158 } 5159 5160 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 5161 struct sk_buff *head, 5162 struct sk_buff *skb) 5163 { 5164 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5165 5166 /* For now don't aggregate IPv6 in AMSDU */ 5167 if (skb->protocol != htons(ETH_P_IP)) 5168 return false; 5169 5170 if (!iwl_mvm_is_csum_supported(mvm)) 5171 return true; 5172 5173 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 5174 } 5175 5176 const struct ieee80211_ops iwl_mvm_hw_ops = { 5177 .tx = iwl_mvm_mac_tx, 5178 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 5179 .ampdu_action = iwl_mvm_mac_ampdu_action, 5180 .get_antenna = iwl_mvm_op_get_antenna, 5181 .start = iwl_mvm_mac_start, 5182 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 5183 .stop = iwl_mvm_mac_stop, 5184 .add_interface = iwl_mvm_mac_add_interface, 5185 .remove_interface = iwl_mvm_mac_remove_interface, 5186 .config = iwl_mvm_mac_config, 5187 .prepare_multicast = iwl_mvm_prepare_multicast, 5188 .configure_filter = iwl_mvm_configure_filter, 5189 .config_iface_filter = iwl_mvm_config_iface_filter, 5190 .bss_info_changed = iwl_mvm_bss_info_changed, 5191 .hw_scan = iwl_mvm_mac_hw_scan, 5192 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 5193 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 5194 .sta_state = iwl_mvm_mac_sta_state, 5195 .sta_notify = iwl_mvm_mac_sta_notify, 5196 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 5197 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 5198 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 5199 .sta_rc_update = iwl_mvm_sta_rc_update, 5200 .conf_tx = iwl_mvm_mac_conf_tx, 5201 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 5202 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 5203 .flush = iwl_mvm_mac_flush, 5204 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 5205 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 5206 .set_key = iwl_mvm_mac_set_key, 5207 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 5208 .remain_on_channel = iwl_mvm_roc, 5209 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 5210 .add_chanctx = iwl_mvm_add_chanctx, 5211 .remove_chanctx = iwl_mvm_remove_chanctx, 5212 .change_chanctx = iwl_mvm_change_chanctx, 5213 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 5214 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 5215 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 5216 5217 .start_ap = iwl_mvm_start_ap_ibss, 5218 .stop_ap = iwl_mvm_stop_ap_ibss, 5219 .join_ibss = iwl_mvm_start_ap_ibss, 5220 .leave_ibss = iwl_mvm_stop_ap_ibss, 5221 5222 .tx_last_beacon = iwl_mvm_tx_last_beacon, 5223 5224 .set_tim = iwl_mvm_set_tim, 5225 5226 .channel_switch = iwl_mvm_channel_switch, 5227 .pre_channel_switch = iwl_mvm_pre_channel_switch, 5228 .post_channel_switch = iwl_mvm_post_channel_switch, 5229 .abort_channel_switch = iwl_mvm_abort_channel_switch, 5230 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 5231 5232 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 5233 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 5234 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 5235 5236 .event_callback = iwl_mvm_mac_event_callback, 5237 5238 .sync_rx_queues = iwl_mvm_sync_rx_queues, 5239 5240 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 5241 5242 #ifdef CONFIG_PM_SLEEP 5243 /* look at d3.c */ 5244 .suspend = iwl_mvm_suspend, 5245 .resume = iwl_mvm_resume, 5246 .set_wakeup = iwl_mvm_set_wakeup, 5247 .set_rekey_data = iwl_mvm_set_rekey_data, 5248 #if IS_ENABLED(CONFIG_IPV6) 5249 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 5250 #endif 5251 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 5252 #endif 5253 .get_survey = iwl_mvm_mac_get_survey, 5254 .sta_statistics = iwl_mvm_mac_sta_statistics, 5255 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 5256 .start_pmsr = iwl_mvm_start_pmsr, 5257 .abort_pmsr = iwl_mvm_abort_pmsr, 5258 5259 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 5260 #ifdef CONFIG_IWLWIFI_DEBUGFS 5261 .sta_add_debugfs = iwl_mvm_sta_add_debugfs, 5262 #endif 5263 }; 5264