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1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause2/*3 * Copyright (C) 2012-2014, 2018-2024 Intel Corporation4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH5 * Copyright (C) 2016-2017 Intel Deutschland GmbH6 */7#include <linux/kernel.h>8#include <linux/slab.h>9#include <linux/skbuff.h>10#include <linux/netdevice.h>11#include <linux/etherdevice.h>12#include <linux/ip.h>13#include <linux/if_arp.h>14#include <linux/time.h>15#include <net/mac80211.h>16#include <net/ieee80211_radiotap.h>17#include <net/tcp.h>18 19#include "iwl-drv.h"20#include "iwl-op-mode.h"21#include "iwl-io.h"22#include "mvm.h"23#include "sta.h"24#include "time-event.h"25#include "iwl-nvm-utils.h"26#include "iwl-phy-db.h"27#include "testmode.h"28#include "fw/error-dump.h"29#include "iwl-prph.h"30#include "iwl-nvm-parse.h"31#include "time-sync.h"32 33#define IWL_MVM_LIMITS(ap) \34 { \35 .max = 1, \36 .types = BIT(NL80211_IFTYPE_STATION), \37 }, \38 { \39 .max = 1, \40 .types = ap | \41 BIT(NL80211_IFTYPE_P2P_CLIENT) | \42 BIT(NL80211_IFTYPE_P2P_GO), \43 }, \44 { \45 .max = 1, \46 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), \47 }48 49static const struct ieee80211_iface_limit iwl_mvm_limits[] = {50 IWL_MVM_LIMITS(0)51};52 53static const struct ieee80211_iface_limit iwl_mvm_limits_ap[] = {54 IWL_MVM_LIMITS(BIT(NL80211_IFTYPE_AP))55};56 57static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {58 {59 .num_different_channels = 2,60 .max_interfaces = 3,61 .limits = iwl_mvm_limits,62 .n_limits = ARRAY_SIZE(iwl_mvm_limits),63 },64 {65 .num_different_channels = 1,66 .max_interfaces = 3,67 .limits = iwl_mvm_limits_ap,68 .n_limits = ARRAY_SIZE(iwl_mvm_limits_ap),69 },70};71 72static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = {73 .max_peers = IWL_MVM_TOF_MAX_APS,74 .report_ap_tsf = 1,75 .randomize_mac_addr = 1,76 77 .ftm = {78 .supported = 1,79 .asap = 1,80 .non_asap = 1,81 .request_lci = 1,82 .request_civicloc = 1,83 .trigger_based = 1,84 .non_trigger_based = 1,85 .max_bursts_exponent = -1, /* all supported */86 .max_ftms_per_burst = 0, /* no limits */87 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |88 BIT(NL80211_CHAN_WIDTH_20) |89 BIT(NL80211_CHAN_WIDTH_40) |90 BIT(NL80211_CHAN_WIDTH_80) |91 BIT(NL80211_CHAN_WIDTH_160),92 .preambles = BIT(NL80211_PREAMBLE_LEGACY) |93 BIT(NL80211_PREAMBLE_HT) |94 BIT(NL80211_PREAMBLE_VHT) |95 BIT(NL80211_PREAMBLE_HE),96 },97};98 99static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw,100 enum set_key_cmd cmd,101 struct ieee80211_vif *vif,102 struct ieee80211_sta *sta,103 struct ieee80211_key_conf *key);104 105static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)106{107 int i;108 109 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));110 for (i = 0; i < NUM_PHY_CTX; i++) {111 mvm->phy_ctxts[i].id = i;112 mvm->phy_ctxts[i].ref = 0;113 }114}115 116struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,117 const char *alpha2,118 enum iwl_mcc_source src_id,119 bool *changed)120{121 struct ieee80211_regdomain *regd = NULL;122 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);123 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);124 struct iwl_mcc_update_resp_v8 *resp;125 u8 resp_ver;126 127 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);128 129 lockdep_assert_held(&mvm->mutex);130 131 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);132 if (IS_ERR_OR_NULL(resp)) {133 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",134 PTR_ERR_OR_ZERO(resp));135 resp = NULL;136 goto out;137 }138 139 if (changed) {140 u32 status = le32_to_cpu(resp->status);141 142 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE ||143 status == MCC_RESP_ILLEGAL);144 }145 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP,146 MCC_UPDATE_CMD, 0);147 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver);148 149 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,150 __le32_to_cpu(resp->n_channels),151 resp->channels,152 __le16_to_cpu(resp->mcc),153 __le16_to_cpu(resp->geo_info),154 le32_to_cpu(resp->cap), resp_ver);155 /* Store the return source id */156 src_id = resp->source_id;157 if (IS_ERR_OR_NULL(regd)) {158 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",159 PTR_ERR_OR_ZERO(regd));160 goto out;161 }162 163 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",164 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);165 mvm->lar_regdom_set = true;166 mvm->mcc_src = src_id;167 168 if (!iwl_puncturing_is_allowed_in_bios(mvm->bios_enable_puncturing,169 le16_to_cpu(resp->mcc)))170 ieee80211_hw_set(mvm->hw, DISALLOW_PUNCTURING);171 else172 __clear_bit(IEEE80211_HW_DISALLOW_PUNCTURING, mvm->hw->flags);173 174 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc));175 176out:177 kfree(resp);178 return regd;179}180 181void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)182{183 bool changed;184 struct ieee80211_regdomain *regd;185 186 if (!iwl_mvm_is_lar_supported(mvm))187 return;188 189 regd = iwl_mvm_get_current_regdomain(mvm, &changed);190 if (!IS_ERR_OR_NULL(regd)) {191 /* only update the regulatory core if changed */192 if (changed)193 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);194 195 kfree(regd);196 }197}198 199struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,200 bool *changed)201{202 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",203 iwl_mvm_is_wifi_mcc_supported(mvm) ?204 MCC_SOURCE_GET_CURRENT :205 MCC_SOURCE_OLD_FW, changed);206}207 208int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm, bool force_regd_sync)209{210 enum iwl_mcc_source used_src;211 struct ieee80211_regdomain *regd;212 int ret;213 bool changed;214 const struct ieee80211_regdomain *r =215 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd);216 217 if (!r)218 return -ENOENT;219 220 /* save the last source in case we overwrite it below */221 used_src = mvm->mcc_src;222 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {223 /* Notify the firmware we support wifi location updates */224 regd = iwl_mvm_get_current_regdomain(mvm, NULL);225 if (!IS_ERR_OR_NULL(regd))226 kfree(regd);227 }228 229 /* Now set our last stored MCC and source */230 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,231 &changed);232 if (IS_ERR_OR_NULL(regd))233 return -EIO;234 235 /* update cfg80211 if the regdomain was changed or the caller explicitly236 * asked to update regdomain237 */238 if (changed || force_regd_sync)239 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd);240 else241 ret = 0;242 243 kfree(regd);244 return ret;245}246 247/* Each capability added here should also be add to tm_if_types_ext_capa_sta */248static const u8 he_if_types_ext_capa_sta[] = {249 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,250 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT,251 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF |252 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB,253 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB,254};255 256static const u8 tm_if_types_ext_capa_sta[] = {257 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,258 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT |259 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT,260 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF |261 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB,262 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB,263 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT,264};265 266/* Additional interface types for which extended capabilities are267 * specified separately268 */269 270#define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \271 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \272 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \273 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \274 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY))275#define IWL_MVM_MLD_CAPA_OPS FIELD_PREP_CONST( \276 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP, \277 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME)278 279static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = {280 {281 .iftype = NL80211_IFTYPE_STATION,282 .extended_capabilities = he_if_types_ext_capa_sta,283 .extended_capabilities_mask = he_if_types_ext_capa_sta,284 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta),285 /* relevant only if EHT is supported */286 .eml_capabilities = IWL_MVM_EMLSR_CAPA,287 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS,288 },289 {290 .iftype = NL80211_IFTYPE_STATION,291 .extended_capabilities = tm_if_types_ext_capa_sta,292 .extended_capabilities_mask = tm_if_types_ext_capa_sta,293 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta),294 /* relevant only if EHT is supported */295 .eml_capabilities = IWL_MVM_EMLSR_CAPA,296 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS,297 },298};299 300int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)301{302 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);303 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm);304 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm);305 return 0;306}307 308int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)309{310 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);311 312 /* This has been tested on those devices only */313 if (mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_9000 &&314 mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_22000)315 return -EOPNOTSUPP;316 317 if (!mvm->nvm_data)318 return -EBUSY;319 320 /* mac80211 ensures the device is not started,321 * so the firmware cannot be running322 */323 324 mvm->set_tx_ant = tx_ant;325 mvm->set_rx_ant = rx_ant;326 327 iwl_reinit_cab(mvm->trans, mvm->nvm_data, tx_ant, rx_ant, mvm->fw);328 329 return 0;330}331 332int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)333{334 struct ieee80211_hw *hw = mvm->hw;335 int num_mac, ret, i;336 static const u32 mvm_ciphers[] = {337 WLAN_CIPHER_SUITE_WEP40,338 WLAN_CIPHER_SUITE_WEP104,339 WLAN_CIPHER_SUITE_TKIP,340 WLAN_CIPHER_SUITE_CCMP,341 };342#ifdef CONFIG_PM_SLEEP343 bool unified = fw_has_capa(&mvm->fw->ucode_capa,344 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);345#endif346 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD);347 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0);348 349 /* Tell mac80211 our characteristics */350 ieee80211_hw_set(hw, SIGNAL_DBM);351 ieee80211_hw_set(hw, SPECTRUM_MGMT);352 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);353 ieee80211_hw_set(hw, WANT_MONITOR_VIF);354 ieee80211_hw_set(hw, SUPPORTS_PS);355 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);356 ieee80211_hw_set(hw, AMPDU_AGGREGATION);357 ieee80211_hw_set(hw, CONNECTION_MONITOR);358 ieee80211_hw_set(hw, CHANCTX_STA_CSA);359 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);360 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);361 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);362 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);363 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW);364 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ);365 ieee80211_hw_set(hw, STA_MMPDU_TXQ);366 367 /* Set this early since we need to have it for the check below */368 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable &&369 !iwlwifi_mod_params.disable_11ax &&370 !iwlwifi_mod_params.disable_11be) {371 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO;372 /* we handle this already earlier, but need it for MLO */373 ieee80211_hw_set(hw, HANDLES_QUIET_CSA);374 }375 376 /* With MLD FW API, it tracks timing by itself,377 * no need for any timing from the host378 */379 if (!mvm->mld_api_is_used)380 ieee80211_hw_set(hw, TIMING_BEACON_ONLY);381 382 /*383 * On older devices, enabling TX A-MSDU occasionally leads to384 * something getting messed up, the command read from the FIFO385 * gets out of sync and isn't a TX command, so that we have an386 * assert EDC.387 *388 * It's not clear where the bug is, but since we didn't used to389 * support A-MSDU until moving the mac80211 iTXQs, just leave it390 * for older devices. We also don't see this issue on any newer391 * devices.392 */393 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000)394 ieee80211_hw_set(hw, TX_AMSDU);395 ieee80211_hw_set(hw, TX_FRAG_LIST);396 397 if (iwl_mvm_has_tlc_offload(mvm)) {398 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);399 ieee80211_hw_set(hw, HAS_RATE_CONTROL);400 }401 402 /* We want to use the mac80211's reorder buffer for 9000 */403 if (iwl_mvm_has_new_rx_api(mvm) &&404 mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_9000)405 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);406 407 if (fw_has_capa(&mvm->fw->ucode_capa,408 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) {409 ieee80211_hw_set(hw, AP_LINK_PS);410 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) {411 /*412 * we absolutely need this for the new TX API since that comes413 * with many more queues than the current code can deal with414 * for station powersave415 */416 return -EINVAL;417 }418 419 if (mvm->trans->num_rx_queues > 1)420 ieee80211_hw_set(hw, USES_RSS);421 422 if (mvm->trans->max_skb_frags)423 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;424 425 hw->queues = IEEE80211_NUM_ACS;426 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;427 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |428 IEEE80211_RADIOTAP_MCS_HAVE_STBC;429 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |430 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;431 432 hw->radiotap_timestamp.units_pos =433 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US |434 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ;435 /* this is the case for CCK frames, it's better (only 8) for OFDM */436 hw->radiotap_timestamp.accuracy = 22;437 438 if (!iwl_mvm_has_tlc_offload(mvm))439 hw->rate_control_algorithm = RS_NAME;440 441 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;442 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;443 hw->max_tx_fragments = mvm->trans->max_skb_frags;444 445 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6);446 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));447 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);448 hw->wiphy->cipher_suites = mvm->ciphers;449 450 if (iwl_mvm_has_new_rx_api(mvm)) {451 mvm->ciphers[hw->wiphy->n_cipher_suites] =452 WLAN_CIPHER_SUITE_GCMP;453 hw->wiphy->n_cipher_suites++;454 mvm->ciphers[hw->wiphy->n_cipher_suites] =455 WLAN_CIPHER_SUITE_GCMP_256;456 hw->wiphy->n_cipher_suites++;457 }458 459 if (iwlwifi_mod_params.swcrypto)460 IWL_ERR(mvm,461 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n");462 if (!iwlwifi_mod_params.bt_coex_active)463 IWL_ERR(mvm,464 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n");465 466 ieee80211_hw_set(hw, MFP_CAPABLE);467 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC;468 hw->wiphy->n_cipher_suites++;469 if (iwl_mvm_has_new_rx_api(mvm)) {470 mvm->ciphers[hw->wiphy->n_cipher_suites] =471 WLAN_CIPHER_SUITE_BIP_GMAC_128;472 hw->wiphy->n_cipher_suites++;473 mvm->ciphers[hw->wiphy->n_cipher_suites] =474 WLAN_CIPHER_SUITE_BIP_GMAC_256;475 hw->wiphy->n_cipher_suites++;476 }477 478 wiphy_ext_feature_set(hw->wiphy,479 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY);480 wiphy_ext_feature_set(hw->wiphy,481 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT);482 483 if (fw_has_capa(&mvm->fw->ucode_capa,484 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) {485 wiphy_ext_feature_set(hw->wiphy,486 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER);487 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa;488 }489 490 if (sec_key_ver &&491 fw_has_capa(&mvm->fw->ucode_capa,492 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT))493 wiphy_ext_feature_set(hw->wiphy,494 NL80211_EXT_FEATURE_BEACON_PROTECTION);495 else if (fw_has_capa(&mvm->fw->ucode_capa,496 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT))497 wiphy_ext_feature_set(hw->wiphy,498 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT);499 500 if (fw_has_capa(&mvm->fw->ucode_capa,501 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM))502 hw->wiphy->hw_timestamp_max_peers = 1;503 504 if (fw_has_capa(&mvm->fw->ucode_capa,505 IWL_UCODE_TLV_CAPA_SPP_AMSDU_SUPPORT))506 wiphy_ext_feature_set(hw->wiphy,507 NL80211_EXT_FEATURE_SPP_AMSDU_SUPPORT);508 509 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);510 hw->wiphy->features |=511 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |512 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |513 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;514 515 hw->sta_data_size = sizeof(struct iwl_mvm_sta);516 hw->vif_data_size = sizeof(struct iwl_mvm_vif);517 hw->chanctx_data_size = sizeof(u16);518 hw->txq_data_size = sizeof(struct iwl_mvm_txq);519 520 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |521 BIT(NL80211_IFTYPE_P2P_CLIENT) |522 BIT(NL80211_IFTYPE_AP) |523 BIT(NL80211_IFTYPE_P2P_GO) |524 BIT(NL80211_IFTYPE_P2P_DEVICE) |525 BIT(NL80211_IFTYPE_ADHOC);526 527 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;528 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);529 530 /* The new Tx API does not allow to pass the key or keyid of a MPDU to531 * the hw, preventing us to control which key(id) to use per MPDU.532 * Till that's fixed we can't use Extended Key ID for the newer cards.533 */534 if (!iwl_mvm_has_new_tx_api(mvm))535 wiphy_ext_feature_set(hw->wiphy,536 NL80211_EXT_FEATURE_EXT_KEY_ID);537 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS;538 539 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;540 if (iwl_mvm_is_lar_supported(mvm))541 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;542 else543 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |544 REGULATORY_DISABLE_BEACON_HINTS;545 546 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)547 wiphy_ext_feature_set(hw->wiphy,548 NL80211_EXT_FEATURE_DFS_CONCURRENT);549 550 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;551 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;552 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ;553 554 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;555 hw->wiphy->n_iface_combinations =556 ARRAY_SIZE(iwl_mvm_iface_combinations);557 558 hw->wiphy->max_remain_on_channel_duration = 10000;559 hw->max_listen_interval = IWL_MVM_CONN_LISTEN_INTERVAL;560 561 /* Extract MAC address */562 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);563 hw->wiphy->addresses = mvm->addresses;564 hw->wiphy->n_addresses = 1;565 566 /* Extract additional MAC addresses if available */567 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?568 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;569 570 for (i = 1; i < num_mac; i++) {571 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,572 ETH_ALEN);573 mvm->addresses[i].addr[5]++;574 hw->wiphy->n_addresses++;575 }576 577 iwl_mvm_reset_phy_ctxts(mvm);578 579 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);580 581 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;582 583 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);584 BUILD_BUG_ON(IWL_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||585 IWL_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));586 587 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))588 mvm->max_scans = IWL_MAX_UMAC_SCANS;589 else590 mvm->max_scans = IWL_MAX_LMAC_SCANS;591 592 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)593 hw->wiphy->bands[NL80211_BAND_2GHZ] =594 &mvm->nvm_data->bands[NL80211_BAND_2GHZ];595 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {596 hw->wiphy->bands[NL80211_BAND_5GHZ] =597 &mvm->nvm_data->bands[NL80211_BAND_5GHZ];598 599 if (fw_has_capa(&mvm->fw->ucode_capa,600 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&601 fw_has_api(&mvm->fw->ucode_capa,602 IWL_UCODE_TLV_API_LQ_SS_PARAMS))603 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=604 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;605 }606 if (fw_has_capa(&mvm->fw->ucode_capa,607 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) &&608 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels)609 hw->wiphy->bands[NL80211_BAND_6GHZ] =610 &mvm->nvm_data->bands[NL80211_BAND_6GHZ];611 612 hw->wiphy->hw_version = mvm->trans->hw_id;613 614 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)615 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;616 else617 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;618 619 hw->wiphy->max_sched_scan_reqs = 1;620 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;621 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw);622 /* we create the 802.11 header and zero length SSID IE. */623 hw->wiphy->max_sched_scan_ie_len =624 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;625 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;626 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;627 628 /*629 * the firmware uses u8 for num of iterations, but 0xff is saved for630 * infinite loop, so the maximum number of iterations is actually 254.631 */632 hw->wiphy->max_sched_scan_plan_iterations = 254;633 634 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |635 NL80211_FEATURE_LOW_PRIORITY_SCAN |636 NL80211_FEATURE_P2P_GO_OPPPS |637 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |638 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;639 640 /* when firmware supports RLC/SMPS offload, do not set these641 * driver features, since it's no longer supported by driver.642 */643 if (!iwl_mvm_has_rlc_offload(mvm))644 hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS |645 NL80211_FEATURE_DYNAMIC_SMPS;646 647 if (fw_has_capa(&mvm->fw->ucode_capa,648 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))649 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;650 if (fw_has_capa(&mvm->fw->ucode_capa,651 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))652 hw->wiphy->features |= NL80211_FEATURE_QUIET;653 654 if (fw_has_capa(&mvm->fw->ucode_capa,655 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))656 hw->wiphy->features |=657 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;658 659 if (fw_has_capa(&mvm->fw->ucode_capa,660 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))661 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;662 663 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL,664 IWL_FW_CMD_VER_UNKNOWN) >= 3)665 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK;666 667 if (fw_has_api(&mvm->fw->ucode_capa,668 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) {669 wiphy_ext_feature_set(hw->wiphy,670 NL80211_EXT_FEATURE_SCAN_START_TIME);671 wiphy_ext_feature_set(hw->wiphy,672 NL80211_EXT_FEATURE_BSS_PARENT_TSF);673 }674 675 if (iwl_mvm_is_oce_supported(mvm)) {676 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0);677 678 wiphy_ext_feature_set(hw->wiphy,679 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP);680 wiphy_ext_feature_set(hw->wiphy,681 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME);682 wiphy_ext_feature_set(hw->wiphy,683 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE);684 685 /* Old firmware also supports probe deferral and suppression */686 if (scan_ver < 15)687 wiphy_ext_feature_set(hw->wiphy,688 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION);689 }690 691 hw->wiphy->iftype_ext_capab = NULL;692 hw->wiphy->num_iftype_ext_capab = 0;693 694 if (mvm->nvm_data->sku_cap_11ax_enable &&695 !iwlwifi_mod_params.disable_11ax) {696 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa;697 hw->wiphy->num_iftype_ext_capab =698 ARRAY_SIZE(add_iftypes_ext_capa) - 1;699 700 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);701 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID);702 }703 704 if (iwl_fw_lookup_cmd_ver(mvm->fw,705 WIDE_ID(DATA_PATH_GROUP,706 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD),707 IWL_FW_CMD_VER_UNKNOWN) >= 1) {708 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n");709 710 if (!hw->wiphy->iftype_ext_capab) {711 hw->wiphy->num_iftype_ext_capab = 1;712 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa +713 ARRAY_SIZE(add_iftypes_ext_capa) - 1;714 } else {715 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1;716 }717 }718 719 if (iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(LOCATION_GROUP,720 TOF_RANGE_REQ_CMD),721 IWL_FW_CMD_VER_UNKNOWN) >= 11) {722 wiphy_ext_feature_set(hw->wiphy,723 NL80211_EXT_FEATURE_PROT_RANGE_NEGO_AND_MEASURE);724 725 if (fw_has_capa(&mvm->fw->ucode_capa,726 IWL_UCODE_TLV_CAPA_SECURE_LTF_SUPPORT))727 wiphy_ext_feature_set(hw->wiphy,728 NL80211_EXT_FEATURE_SECURE_LTF);729 }730 731 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;732 733 ieee80211_hw_set(hw, DISALLOW_PUNCTURING_5GHZ);734 735#ifdef CONFIG_PM_SLEEP736 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) &&737 device_can_wakeup(mvm->trans->dev)) {738 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |739 WIPHY_WOWLAN_DISCONNECT |740 WIPHY_WOWLAN_EAP_IDENTITY_REQ |741 WIPHY_WOWLAN_RFKILL_RELEASE |742 WIPHY_WOWLAN_NET_DETECT;743 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |744 WIPHY_WOWLAN_GTK_REKEY_FAILURE |745 WIPHY_WOWLAN_4WAY_HANDSHAKE;746 747 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;748 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;749 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;750 mvm->wowlan.max_nd_match_sets =751 iwl_umac_scan_get_max_profiles(mvm->fw);752 hw->wiphy->wowlan = &mvm->wowlan;753 }754#endif755 756 ret = iwl_mvm_leds_init(mvm);757 if (ret)758 return ret;759 760 if (fw_has_capa(&mvm->fw->ucode_capa,761 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {762 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");763 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;764 ieee80211_hw_set(hw, TDLS_WIDER_BW);765 }766 767 if (fw_has_capa(&mvm->fw->ucode_capa,768 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {769 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");770 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;771 }772 773 hw->netdev_features |= mvm->cfg->features;774 if (!iwl_mvm_is_csum_supported(mvm))775 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK;776 777 if (mvm->cfg->vht_mu_mimo_supported)778 wiphy_ext_feature_set(hw->wiphy,779 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER);780 781 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT))782 wiphy_ext_feature_set(hw->wiphy,783 NL80211_EXT_FEATURE_PROTECTED_TWT);784 785 iwl_mvm_vendor_cmds_register(mvm);786 787 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm);788 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm);789 790 ret = ieee80211_register_hw(mvm->hw);791 if (ret) {792 iwl_mvm_leds_exit(mvm);793 }794 795 return ret;796}797 798static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,799 struct ieee80211_sta *sta)800{801 if (likely(sta)) {802 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0))803 return;804 } else {805 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0))806 return;807 }808 809 ieee80211_free_txskb(mvm->hw, skb);810}811 812void iwl_mvm_mac_tx(struct ieee80211_hw *hw,813 struct ieee80211_tx_control *control, struct sk_buff *skb)814{815 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);816 struct ieee80211_sta *sta = control->sta;817 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);818 struct ieee80211_hdr *hdr = (void *)skb->data;819 bool offchannel = IEEE80211_SKB_CB(skb)->flags &820 IEEE80211_TX_CTL_TX_OFFCHAN;821 u32 link_id = u32_get_bits(info->control.flags,822 IEEE80211_TX_CTRL_MLO_LINK);823 struct ieee80211_sta *tmp_sta = sta;824 825 if (iwl_mvm_is_radio_killed(mvm)) {826 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");827 goto drop;828 }829 830 if (offchannel &&831 !test_bit(IWL_MVM_STATUS_ROC_P2P_RUNNING, &mvm->status) &&832 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))833 goto drop;834 835 /*836 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs837 * so we treat the others as broadcast838 */839 if (ieee80211_is_mgmt(hdr->frame_control))840 sta = NULL;841 842 /* this shouldn't even happen: just drop */843 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION &&844 !offchannel)845 goto drop;846 847 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED &&848 !ieee80211_is_probe_resp(hdr->frame_control)) {849 /* translate MLD addresses to LINK addresses */850 struct ieee80211_link_sta *link_sta =851 rcu_dereference(tmp_sta->link[link_id]);852 struct ieee80211_bss_conf *link_conf =853 rcu_dereference(info->control.vif->link_conf[link_id]);854 struct ieee80211_mgmt *mgmt;855 856 if (WARN_ON(!link_sta || !link_conf))857 goto drop;858 859 /* if sta is NULL, the frame is a management frame */860 mgmt = (void *)hdr;861 memcpy(mgmt->da, link_sta->addr, ETH_ALEN);862 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN);863 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN);864 }865 866 iwl_mvm_tx_skb(mvm, skb, sta);867 return;868 drop:869 ieee80211_free_txskb(hw, skb);870}871 872void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq)873{874 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);875 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);876 struct sk_buff *skb = NULL;877 878 /*879 * No need for threads to be pending here, they can leave the first880 * taker all the work.881 *882 * mvmtxq->tx_request logic:883 *884 * If 0, no one is currently TXing, set to 1 to indicate current thread885 * will now start TX and other threads should quit.886 *887 * If 1, another thread is currently TXing, set to 2 to indicate to888 * that thread that there was another request. Since that request may889 * have raced with the check whether the queue is empty, the TXing890 * thread should check the queue's status one more time before leaving.891 * This check is done in order to not leave any TX hanging in the queue892 * until the next TX invocation (which may not even happen).893 *894 * If 2, another thread is currently TXing, and it will already double895 * check the queue, so do nothing.896 */897 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2))898 return;899 900 rcu_read_lock();901 do {902 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL,903 &mvmtxq->state) &&904 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT,905 &mvmtxq->state) &&906 !test_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA,907 &mvmtxq->state) &&908 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) {909 skb = ieee80211_tx_dequeue(hw, txq);910 911 if (!skb) {912 if (txq->sta)913 IWL_DEBUG_TX(mvm,914 "TXQ of sta %pM tid %d is now empty\n",915 txq->sta->addr,916 txq->tid);917 break;918 }919 920 iwl_mvm_tx_skb(mvm, skb, txq->sta);921 }922 } while (atomic_dec_return(&mvmtxq->tx_request));923 rcu_read_unlock();924}925 926void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw,927 struct ieee80211_txq *txq)928{929 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);930 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);931 932 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) ||933 !txq->sta) {934 iwl_mvm_mac_itxq_xmit(hw, txq);935 return;936 }937 938 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker939 * to handle any packets we leave on the txq now940 */941 942 spin_lock_bh(&mvm->add_stream_lock);943 /* The list is being deleted only after the queue is fully allocated. */944 if (list_empty(&mvmtxq->list) &&945 /* recheck under lock */946 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) {947 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs);948 schedule_work(&mvm->add_stream_wk);949 }950 spin_unlock_bh(&mvm->add_stream_lock);951}952 953#define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \954 do { \955 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \956 break; \957 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \958 } while (0)959 960static void961iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,962 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,963 enum ieee80211_ampdu_mlme_action action)964{965 struct iwl_fw_dbg_trigger_tlv *trig;966 struct iwl_fw_dbg_trigger_ba *ba_trig;967 968 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),969 FW_DBG_TRIGGER_BA);970 if (!trig)971 return;972 973 ba_trig = (void *)trig->data;974 975 switch (action) {976 case IEEE80211_AMPDU_TX_OPERATIONAL: {977 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);978 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];979 980 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,981 "TX AGG START: MAC %pM tid %d ssn %d\n",982 sta->addr, tid, tid_data->ssn);983 break;984 }985 case IEEE80211_AMPDU_TX_STOP_CONT:986 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,987 "TX AGG STOP: MAC %pM tid %d\n",988 sta->addr, tid);989 break;990 case IEEE80211_AMPDU_RX_START:991 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,992 "RX AGG START: MAC %pM tid %d ssn %d\n",993 sta->addr, tid, rx_ba_ssn);994 break;995 case IEEE80211_AMPDU_RX_STOP:996 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,997 "RX AGG STOP: MAC %pM tid %d\n",998 sta->addr, tid);999 break;1000 default:1001 break;1002 }1003}1004 1005int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,1006 struct ieee80211_vif *vif,1007 struct ieee80211_ampdu_params *params)1008{1009 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);1010 int ret;1011 struct ieee80211_sta *sta = params->sta;1012 enum ieee80211_ampdu_mlme_action action = params->action;1013 u16 tid = params->tid;1014 u16 *ssn = ¶ms->ssn;1015 u16 buf_size = params->buf_size;1016 bool amsdu = params->amsdu;1017 u16 timeout = params->timeout;1018 1019 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",1020 sta->addr, tid, action);1021 1022 if (!(mvm->nvm_data->sku_cap_11n_enable))1023 return -EACCES;1024 1025 mutex_lock(&mvm->mutex);1026 1027 switch (action) {1028 case IEEE80211_AMPDU_RX_START:1029 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id ==1030 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) {1031 struct iwl_mvm_vif *mvmvif;1032 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id;1033 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid];1034 1035 mdata->opened_rx_ba_sessions = true;1036 mvmvif = iwl_mvm_vif_from_mac80211(vif);1037 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk);1038 }1039 if (!iwl_enable_rx_ampdu()) {1040 ret = -EINVAL;1041 break;1042 }1043 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,1044 timeout);1045 break;1046 case IEEE80211_AMPDU_RX_STOP:1047 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,1048 timeout);1049 break;1050 case IEEE80211_AMPDU_TX_START:1051 if (!iwl_enable_tx_ampdu()) {1052 ret = -EINVAL;1053 break;1054 }1055 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);1056 break;1057 case IEEE80211_AMPDU_TX_STOP_CONT:1058 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);1059 break;1060 case IEEE80211_AMPDU_TX_STOP_FLUSH:1061 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:1062 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);1063 break;1064 case IEEE80211_AMPDU_TX_OPERATIONAL:1065 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,1066 buf_size, amsdu);1067 break;1068 default:1069 WARN_ON_ONCE(1);1070 ret = -EINVAL;1071 break;1072 }1073 1074 if (!ret) {1075 u16 rx_ba_ssn = 0;1076 1077 if (action == IEEE80211_AMPDU_RX_START)1078 rx_ba_ssn = *ssn;1079 1080 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,1081 rx_ba_ssn, action);1082 }1083 mutex_unlock(&mvm->mutex);1084 1085 return ret;1086}1087 1088static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,1089 struct ieee80211_vif *vif)1090{1091 struct iwl_mvm *mvm = data;1092 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);1093 struct iwl_probe_resp_data *probe_data;1094 unsigned int link_id;1095 1096 mvmvif->uploaded = false;1097 1098 spin_lock_bh(&mvm->time_event_lock);1099 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);1100 spin_unlock_bh(&mvm->time_event_lock);1101 1102 mvmvif->roc_activity = ROC_NUM_ACTIVITIES;1103 1104 mvmvif->bf_enabled = false;1105 mvmvif->ba_enabled = false;1106 mvmvif->ap_sta = NULL;1107 1108 mvmvif->esr_active = false;1109 vif->driver_flags &= ~IEEE80211_VIF_EML_ACTIVE;1110 1111 for_each_mvm_vif_valid_link(mvmvif, link_id) {1112 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA;1113 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID;1114 mvmvif->link[link_id]->phy_ctxt = NULL;1115 mvmvif->link[link_id]->active = 0;1116 mvmvif->link[link_id]->igtk = NULL;1117 memset(&mvmvif->link[link_id]->bf_data, 0,1118 sizeof(mvmvif->link[link_id]->bf_data));1119 }1120 1121 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data,1122 lockdep_is_held(&mvm->mutex));1123 if (probe_data)1124 kfree_rcu(probe_data, rcu_head);1125 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL);1126}1127 1128static void iwl_mvm_cleanup_sta_iterator(void *data, struct ieee80211_sta *sta)1129{1130 struct iwl_mvm *mvm = data;1131 struct iwl_mvm_sta *mvm_sta;1132 struct ieee80211_vif *vif;1133 int link_id;1134 1135 mvm_sta = iwl_mvm_sta_from_mac80211(sta);1136 vif = mvm_sta->vif;1137 1138 if (!sta->valid_links)1139 return;1140 1141 for (link_id = 0; link_id < ARRAY_SIZE((sta)->link); link_id++) {1142 struct iwl_mvm_link_sta *mvm_link_sta;1143 1144 mvm_link_sta =1145 rcu_dereference_check(mvm_sta->link[link_id],1146 lockdep_is_held(&mvm->mutex));1147 if (mvm_link_sta && !(vif->active_links & BIT(link_id))) {1148 /*1149 * We have a link STA but the link is inactive in1150 * mac80211. This will happen if we failed to1151 * deactivate the link but mac80211 roll back the1152 * deactivation of the link.1153 * Delete the stale data to avoid issues later on.1154 */1155 iwl_mvm_mld_free_sta_link(mvm, mvm_sta, mvm_link_sta,1156 link_id, false);1157 }1158 }1159}1160 1161static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)1162{1163 iwl_mvm_stop_device(mvm);1164 1165 mvm->cur_aid = 0;1166 1167 mvm->scan_status = 0;1168 mvm->ps_disabled = false;1169 mvm->rfkill_safe_init_done = false;1170 1171 /* just in case one was running */1172 iwl_mvm_cleanup_roc_te(mvm);1173 ieee80211_remain_on_channel_expired(mvm->hw);1174 1175 iwl_mvm_ftm_restart(mvm);1176 1177 /*1178 * cleanup all interfaces, even inactive ones, as some might have1179 * gone down during the HW restart1180 */1181 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);1182 1183 /* cleanup stations as links may be gone after restart */1184 ieee80211_iterate_stations_atomic(mvm->hw,1185 iwl_mvm_cleanup_sta_iterator, mvm);1186 1187 mvm->p2p_device_vif = NULL;1188 1189 iwl_mvm_reset_phy_ctxts(mvm);1190 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));1191 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));1192 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));1193 1194 ieee80211_wake_queues(mvm->hw);1195 1196 mvm->rx_ba_sessions = 0;1197 mvm->fwrt.dump.conf = FW_DBG_INVALID;1198 mvm->monitor_on = false;1199#ifdef CONFIG_IWLWIFI_DEBUGFS1200 mvm->beacon_inject_active = false;1201#endif1202 1203 /* keep statistics ticking */1204 iwl_mvm_accu_radio_stats(mvm);1205}1206 1207int __iwl_mvm_mac_start(struct iwl_mvm *mvm)1208{1209 bool fast_resume = false;1210 int ret;1211 1212 lockdep_assert_held(&mvm->mutex);1213 1214 ret = iwl_mvm_mei_get_ownership(mvm);1215 if (ret)1216 return ret;1217 1218 if (mvm->mei_nvm_data) {1219 /* We got the NIC, we can now free the MEI NVM data */1220 kfree(mvm->mei_nvm_data);1221 mvm->mei_nvm_data = NULL;1222 1223 /*1224 * We can't free the nvm_data we allocated based on the SAP1225 * data because we registered to cfg80211 with the channels1226 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data1227 * just in order to be able free it later.1228 * NULLify nvm_data so that we will read the NVM from the1229 * firmware this time.1230 */1231 mvm->temp_nvm_data = mvm->nvm_data;1232 mvm->nvm_data = NULL;1233 }1234 1235#ifdef CONFIG_PM_SLEEP1236 /* fast_resume will be cleared by iwl_mvm_fast_resume */1237 fast_resume = mvm->fast_resume;1238 1239 if (fast_resume) {1240 ret = iwl_mvm_fast_resume(mvm);1241 if (ret) {1242 iwl_mvm_stop_device(mvm);1243 /* iwl_mvm_up() will be called further down */1244 } else {1245 /*1246 * We clear IWL_MVM_STATUS_FIRMWARE_RUNNING upon1247 * mac_down() so that debugfs will stop honoring1248 * requests after we flush all the workers.1249 * Set the IWL_MVM_STATUS_FIRMWARE_RUNNING bit again1250 * now that we are back. This is a bit abusing the1251 * flag since the firmware wasn't really ever stopped,1252 * but this still serves the purpose.1253 */1254 set_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);1255 }1256 }1257#endif /* CONFIG_PM_SLEEP */1258 1259 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) {1260 /*1261 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART1262 * so later code will - from now on - see that we're doing it.1263 */1264 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);1265 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);1266 /* Clean up some internal and mac80211 state on restart */1267 iwl_mvm_restart_cleanup(mvm);1268 }1269 1270 /* we also want to load the firmware if fast_resume failed */1271 if (!fast_resume || ret)1272 ret = iwl_mvm_up(mvm);1273 1274 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT,1275 NULL);1276 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC,1277 NULL);1278 1279 mvm->last_reset_or_resume_time_jiffies = jiffies;1280 1281 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {1282 /* Something went wrong - we need to finish some cleanup1283 * that normally iwl_mvm_mac_restart_complete() below1284 * would do.1285 */1286 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);1287 }1288 1289 return ret;1290}1291 1292int iwl_mvm_mac_start(struct ieee80211_hw *hw)1293{1294 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);1295 int ret;1296 int retry, max_retry = 0;1297 1298 mutex_lock(&mvm->mutex);1299 1300 /* we are starting the mac not in error flow, and restart is enabled */1301 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) &&1302 iwlwifi_mod_params.fw_restart) {1303 max_retry = IWL_MAX_INIT_RETRY;1304 /*1305 * This will prevent mac80211 recovery flows to trigger during1306 * init failures1307 */1308 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status);1309 }1310 1311 for (retry = 0; retry <= max_retry; retry++) {1312 ret = __iwl_mvm_mac_start(mvm);1313 if (!ret)1314 break;1315 1316 IWL_ERR(mvm, "mac start retry %d\n", retry);1317 }1318 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status);1319 1320 mutex_unlock(&mvm->mutex);1321 1322 iwl_mvm_mei_set_sw_rfkill_state(mvm);1323 1324 return ret;1325}1326 1327static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)1328{1329 int ret;1330 1331 guard(mvm)(mvm);1332 1333 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);1334 1335 ret = iwl_mvm_update_quotas(mvm, true, NULL);1336 if (ret)1337 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",1338 ret);1339 1340 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY);1341 1342 /*1343 * If we have TDLS peers, remove them. We don't know the last seqno/PN1344 * of packets the FW sent out, so we must reconnect.1345 */1346 iwl_mvm_teardown_tdls_peers(mvm);1347}1348 1349void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,1350 enum ieee80211_reconfig_type reconfig_type)1351{1352 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);1353 1354 switch (reconfig_type) {1355 case IEEE80211_RECONFIG_TYPE_RESTART:1356 iwl_mvm_restart_complete(mvm);1357 break;1358 case IEEE80211_RECONFIG_TYPE_SUSPEND:1359 break;1360 }1361}1362 1363void __iwl_mvm_mac_stop(struct iwl_mvm *mvm, bool suspend)1364{1365 lockdep_assert_held(&mvm->mutex);1366 1367 iwl_mvm_ftm_initiator_smooth_stop(mvm);1368 1369 /* firmware counters are obviously reset now, but we shouldn't1370 * partially track so also clear the fw_reset_accu counters.1371 */1372 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));1373 1374 /* async_handlers_wk is now blocked */1375 1376 if (!iwl_mvm_has_new_station_api(mvm->fw))1377 iwl_mvm_rm_aux_sta(mvm);1378 1379 if (suspend &&1380 mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)1381 iwl_mvm_fast_suspend(mvm);1382 else1383 iwl_mvm_stop_device(mvm);1384 1385 iwl_mvm_async_handlers_purge(mvm);1386 /* async_handlers_list is empty and will stay empty: HW is stopped */1387 1388 /*1389 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the1390 * hw (as restart_complete() won't be called in this case) and mac802111391 * won't execute the restart.1392 * But make sure to cleanup interfaces that have gone down before/during1393 * HW restart was requested.1394 */1395 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) ||1396 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,1397 &mvm->status))1398 ieee80211_iterate_interfaces(mvm->hw, 0,1399 iwl_mvm_cleanup_iterator, mvm);1400 1401 /* We shouldn't have any UIDs still set. Loop over all the UIDs to1402 * make sure there's nothing left there and warn if any is found.1403 */1404 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {1405 int i;1406 1407 for (i = 0; i < mvm->max_scans; i++) {1408 if (WARN_ONCE(mvm->scan_uid_status[i],1409 "UMAC scan UID %d status was not cleaned\n",1410 i))1411 mvm->scan_uid_status[i] = 0;1412 }1413 }1414}1415 1416void iwl_mvm_mac_stop(struct ieee80211_hw *hw, bool suspend)1417{1418 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);1419 1420 /* Stop internal MLO scan, if running */1421 mutex_lock(&mvm->mutex);1422 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_INT_MLO, false);1423 mutex_unlock(&mvm->mutex);1424 1425 wiphy_work_cancel(mvm->hw->wiphy, &mvm->trig_link_selection_wk);1426 wiphy_work_flush(mvm->hw->wiphy, &mvm->async_handlers_wiphy_wk);1427 flush_work(&mvm->async_handlers_wk);1428 flush_work(&mvm->add_stream_wk);1429 1430 /*1431 * Lock and clear the firmware running bit here already, so that1432 * new commands coming in elsewhere, e.g. from debugfs, will not1433 * be able to proceed. This is important here because one of those1434 * debugfs files causes the firmware dump to be triggered, and if we1435 * don't stop debugfs accesses before canceling that it could be1436 * retriggered after we flush it but before we've cleared the bit.1437 */1438 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);1439 1440 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork);1441 cancel_delayed_work_sync(&mvm->scan_timeout_dwork);1442 1443 /*1444 * The work item could be running or queued if the1445 * ROC time event stops just as we get here.1446 */1447 flush_work(&mvm->roc_done_wk);1448 1449 iwl_mvm_mei_set_sw_rfkill_state(mvm);1450 1451 mutex_lock(&mvm->mutex);1452 __iwl_mvm_mac_stop(mvm, suspend);1453 mutex_unlock(&mvm->mutex);1454 1455 /*1456 * The worker might have been waiting for the mutex, let it run and1457 * discover that its list is now empty.1458 */1459 cancel_work_sync(&mvm->async_handlers_wk);1460 wiphy_work_cancel(hw->wiphy, &mvm->async_handlers_wiphy_wk);1461}1462 1463struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)1464{1465 u16 i;1466 1467 lockdep_assert_held(&mvm->mutex);1468 1469 for (i = 0; i < NUM_PHY_CTX; i++)1470 if (!mvm->phy_ctxts[i].ref)1471 return &mvm->phy_ctxts[i];1472 1473 IWL_ERR(mvm, "No available PHY context\n");1474 return NULL;1475}1476 1477int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,1478 s16 tx_power)1479{1480 u32 cmd_id = REDUCE_TX_POWER_CMD;1481 int len;1482 struct iwl_dev_tx_power_cmd_v3_v8 cmd = {1483 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),1484 .common.mac_context_id =1485 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),1486 };1487 struct iwl_dev_tx_power_cmd cmd_v9_v10;1488 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 3);1489 u16 u_tx_power = tx_power == IWL_DEFAULT_MAX_TX_POWER ?1490 IWL_DEV_MAX_TX_POWER : 8 * tx_power;1491 void *cmd_data = &cmd;1492 1493 cmd.common.pwr_restriction = cpu_to_le16(u_tx_power);1494 1495 if (cmd_ver > 8) {1496 /* Those fields sit on the same place for v9 and v10 */1497 cmd_v9_v10.common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC);1498 cmd_v9_v10.common.mac_context_id =1499 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id);1500 cmd_v9_v10.common.pwr_restriction = cpu_to_le16(u_tx_power);1501 cmd_data = &cmd_v9_v10;1502 }1503 1504 if (cmd_ver == 10)1505 len = sizeof(cmd_v9_v10.v10);1506 else if (cmd_ver == 9)1507 len = sizeof(cmd_v9_v10.v9);1508 else if (cmd_ver == 8)1509 len = sizeof(cmd.v8);1510 else if (cmd_ver == 7)1511 len = sizeof(cmd.v7);1512 else if (cmd_ver == 6)1513 len = sizeof(cmd.v6);1514 else if (fw_has_api(&mvm->fw->ucode_capa,1515 IWL_UCODE_TLV_API_REDUCE_TX_POWER))1516 len = sizeof(cmd.v5);1517 else if (fw_has_capa(&mvm->fw->ucode_capa,1518 IWL_UCODE_TLV_CAPA_TX_POWER_ACK))1519 len = sizeof(cmd.v4);1520 else1521 len = sizeof(cmd.v3);1522 1523 /* all structs have the same common part, add its length */1524 len += sizeof(cmd.common);1525 1526 if (cmd_ver < 9)1527 len += sizeof(cmd.per_band);1528 1529 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, cmd_data);1530 1531}1532 1533static void iwl_mvm_post_csa_tx(void *data, struct ieee80211_sta *sta)1534{1535 struct ieee80211_hw *hw = data;1536 int i;1537 1538 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) {1539 struct iwl_mvm_txq *mvmtxq =1540 iwl_mvm_txq_from_mac80211(sta->txq[i]);1541 1542 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state);1543 iwl_mvm_mac_itxq_xmit(hw, sta->txq[i]);1544 }1545}1546 1547int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,1548 struct ieee80211_vif *vif,1549 struct ieee80211_bss_conf *link_conf)1550{1551 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);1552 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);1553 int ret;1554 1555 mutex_lock(&mvm->mutex);1556 1557 if (vif->type == NL80211_IFTYPE_STATION) {1558 struct iwl_mvm_sta *mvmsta;1559 unsigned int link_id = link_conf->link_id;1560 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id;1561 1562 mvmvif->csa_bcn_pending = false;1563 mvmvif->csa_blocks_tx = false;1564 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id);1565 1566 if (WARN_ON(!mvmsta)) {1567 ret = -EIO;1568 goto out_unlock;1569 }1570 1571 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);1572 if (mvm->mld_api_is_used)1573 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false);1574 else1575 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);1576 1577 if (!fw_has_capa(&mvm->fw->ucode_capa,1578 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {1579 ret = iwl_mvm_enable_beacon_filter(mvm, vif);1580 if (ret)1581 goto out_unlock;1582 1583 iwl_mvm_stop_session_protection(mvm, vif);1584 }1585 } else if (vif->type == NL80211_IFTYPE_AP && mvmvif->csa_blocks_tx) {1586 struct iwl_mvm_txq *mvmtxq =1587 iwl_mvm_txq_from_mac80211(vif->txq);1588 1589 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state);1590 1591 local_bh_disable();1592 iwl_mvm_mac_itxq_xmit(hw, vif->txq);1593 ieee80211_iterate_stations_atomic(hw, iwl_mvm_post_csa_tx, hw);1594 local_bh_enable();1595 1596 mvmvif->csa_blocks_tx = false;1597 }1598 1599 mvmvif->ps_disabled = false;1600 1601 ret = iwl_mvm_power_update_ps(mvm);1602 1603out_unlock:1604 if (mvmvif->csa_failed)1605 ret = -EIO;1606 mutex_unlock(&mvm->mutex);1607 1608 return ret;1609}1610 1611void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw,1612 struct ieee80211_vif *vif,1613 struct ieee80211_bss_conf *link_conf)1614{1615 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);1616 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);1617 struct iwl_chan_switch_te_cmd cmd = {1618 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,1619 mvmvif->color)),1620 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE),1621 };1622 1623 /*1624 * In the new flow since FW is in charge of the timing,1625 * if driver has canceled the channel switch he will receive the1626 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it1627 */1628 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,1629 CHANNEL_SWITCH_ERROR_NOTIF, 0))1630 return;1631 1632 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id);1633 1634 mutex_lock(&mvm->mutex);1635 if (!fw_has_capa(&mvm->fw->ucode_capa,1636 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))1637 iwl_mvm_remove_csa_period(mvm, vif);1638 else1639 WARN_ON(iwl_mvm_send_cmd_pdu(mvm,1640 WIDE_ID(MAC_CONF_GROUP,1641 CHANNEL_SWITCH_TIME_EVENT_CMD),1642 0, sizeof(cmd), &cmd));1643 mvmvif->csa_failed = true;1644 mutex_unlock(&mvm->mutex);1645 1646 /* If we're here, we can't support MLD */1647 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf);1648}1649 1650void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk)1651{1652 struct iwl_mvm_vif *mvmvif;1653 struct ieee80211_vif *vif;1654 1655 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work);1656 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);1657 1658 /* Trigger disconnect (should clear the CSA state) */1659 ieee80211_chswitch_done(vif, false, 0);1660}1661 1662static u81663iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef)1664{1665 int data_start;1666 int control_start;1667 int bw;1668 1669 if (chandef->width == NL80211_CHAN_WIDTH_320)1670 bw = 320;1671 else if (chandef->width == NL80211_CHAN_WIDTH_160)1672 bw = 160;1673 else1674 return 0;1675 1676 /* data is bw wide so the start is half the width */1677 data_start = chandef->center_freq1 - bw / 2;1678 /* control is 20Mhz width */1679 control_start = chandef->chan->center_freq - 10;1680 1681 return (control_start - data_start) / 80;1682}1683 1684static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm,1685 struct ieee80211_vif *vif)1686{1687 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);1688 int ret;1689 1690 lockdep_assert_held(&mvm->mutex);1691 1692 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);1693 if (ret) {1694 IWL_ERR(mvm, "Failed to allocate bcast sta\n");1695 return ret;1696 }1697 1698 /* Only queue for this station is the mcast queue,1699 * which shouldn't be in TFD mask anyway1700 */1701 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0,1702 vif->type,1703 IWL_STA_MULTICAST);1704}1705 1706static void iwl_mvm_prevent_esr_done_wk(struct wiphy *wiphy,1707 struct wiphy_work *wk)1708{1709 struct iwl_mvm_vif *mvmvif =1710 container_of(wk, struct iwl_mvm_vif, prevent_esr_done_wk.work);1711 struct iwl_mvm *mvm = mvmvif->mvm;1712 struct ieee80211_vif *vif =1713 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);1714 1715 guard(mvm)(mvm);1716 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_PREVENTION);1717}1718 1719static void iwl_mvm_mlo_int_scan_wk(struct wiphy *wiphy, struct wiphy_work *wk)1720{1721 struct iwl_mvm_vif *mvmvif = container_of(wk, struct iwl_mvm_vif,1722 mlo_int_scan_wk.work);1723 struct ieee80211_vif *vif =1724 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);1725 1726 guard(mvm)(mvmvif->mvm);1727 iwl_mvm_int_mlo_scan(mvmvif->mvm, vif);1728}1729 1730static void iwl_mvm_unblock_esr_tpt(struct wiphy *wiphy, struct wiphy_work *wk)1731{1732 struct iwl_mvm_vif *mvmvif =1733 container_of(wk, struct iwl_mvm_vif, unblock_esr_tpt_wk);1734 struct iwl_mvm *mvm = mvmvif->mvm;1735 struct ieee80211_vif *vif =1736 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);1737 1738 guard(mvm)(mvm);1739 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT);1740}1741 1742void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif)1743{1744 lockdep_assert_held(&mvm->mutex);1745 1746 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))1747 return;1748 1749 INIT_DELAYED_WORK(&mvmvif->csa_work,1750 iwl_mvm_channel_switch_disconnect_wk);1751 1752 wiphy_delayed_work_init(&mvmvif->prevent_esr_done_wk,1753 iwl_mvm_prevent_esr_done_wk);1754 1755 wiphy_delayed_work_init(&mvmvif->mlo_int_scan_wk,1756 iwl_mvm_mlo_int_scan_wk);1757 1758 wiphy_work_init(&mvmvif->unblock_esr_tpt_wk,1759 iwl_mvm_unblock_esr_tpt);1760}1761 1762static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,1763 struct ieee80211_vif *vif)1764{1765 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);1766 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);1767 int ret;1768 int i;1769 1770 mutex_lock(&mvm->mutex);1771 1772 iwl_mvm_mac_init_mvmvif(mvm, mvmvif);1773 1774 mvmvif->mvm = mvm;1775 1776 /* the first link always points to the default one */1777 mvmvif->deflink.fw_link_id = IWL_MVM_FW_LINK_ID_INVALID;1778 mvmvif->deflink.active = 0;1779 mvmvif->link[0] = &mvmvif->deflink;1780 1781 ret = iwl_mvm_set_link_mapping(mvm, vif, &vif->bss_conf);1782 if (ret)1783 goto out;1784 1785 /*1786 * Not much to do here. The stack will not allow interface1787 * types or combinations that we didn't advertise, so we1788 * don't really have to check the types.1789 */1790 1791 /* make sure that beacon statistics don't go backwards with FW reset */1792 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))1793 for_each_mvm_vif_valid_link(mvmvif, i)1794 mvmvif->link[i]->beacon_stats.accu_num_beacons +=1795 mvmvif->link[i]->beacon_stats.num_beacons;1796 1797 /* Allocate resources for the MAC context, and add it to the fw */1798 ret = iwl_mvm_mac_ctxt_init(mvm, vif);1799 if (ret)1800 goto out;1801 1802 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif);1803 1804 /* Currently not much to do for NAN */1805 if (vif->type == NL80211_IFTYPE_NAN) {1806 ret = 0;1807 goto out;1808 }1809 1810 /*1811 * The AP binding flow can be done only after the beacon1812 * template is configured (which happens only in the mac802111813 * start_ap() flow), and adding the broadcast station can happen1814 * only after the binding.1815 * In addition, since modifying the MAC before adding a bcast1816 * station is not allowed by the FW, delay the adding of MAC context to1817 * the point where we can also add the bcast station.1818 * In short: there's not much we can do at this point, other than1819 * allocating resources :)1820 */1821 if (vif->type == NL80211_IFTYPE_AP ||1822 vif->type == NL80211_IFTYPE_ADHOC) {1823 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))1824 iwl_mvm_vif_dbgfs_add_link(mvm, vif);1825 ret = 0;1826 goto out;1827 }1828 1829 mvmvif->features |= hw->netdev_features;1830 1831 ret = iwl_mvm_mac_ctxt_add(mvm, vif);1832 if (ret)1833 goto out_unlock;1834 1835 ret = iwl_mvm_power_update_mac(mvm);1836 if (ret)1837 goto out_remove_mac;1838 1839 /* beacon filtering */1840 ret = iwl_mvm_disable_beacon_filter(mvm, vif);1841 if (ret)1842 goto out_remove_mac;1843 1844 if (!mvm->bf_allowed_vif &&1845 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {1846 mvm->bf_allowed_vif = mvmvif;1847 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |1848 IEEE80211_VIF_SUPPORTS_CQM_RSSI;1849 }1850 1851 if (vif->type == NL80211_IFTYPE_P2P_DEVICE)1852 mvm->p2p_device_vif = vif;1853 1854 iwl_mvm_tcm_add_vif(mvm, vif);1855 1856 if (vif->type == NL80211_IFTYPE_MONITOR) {1857 mvm->monitor_on = true;1858 mvm->monitor_p80 =1859 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chanreq.oper);1860 }1861 1862 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))1863 iwl_mvm_vif_dbgfs_add_link(mvm, vif);1864 1865 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&1866 vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&1867 !mvm->csme_vif && mvm->mei_registered) {1868 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr);1869 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev);1870 mvm->csme_vif = vif;1871 }1872 1873out:1874 if (!ret && (vif->type == NL80211_IFTYPE_AP ||1875 vif->type == NL80211_IFTYPE_ADHOC))1876 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif);1877 1878 goto out_unlock;1879 1880 out_remove_mac:1881 mvmvif->deflink.phy_ctxt = NULL;1882 iwl_mvm_mac_ctxt_remove(mvm, vif);1883 out_unlock:1884 mutex_unlock(&mvm->mutex);1885 1886 return ret;1887}1888 1889void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,1890 struct ieee80211_vif *vif)1891{1892 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);1893 1894 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {1895 /*1896 * Flush the ROC worker which will flush the OFFCHANNEL queue.1897 * We assume here that all the packets sent to the OFFCHANNEL1898 * queue are sent in ROC session.1899 */1900 flush_work(&mvm->roc_done_wk);1901 }1902 1903 wiphy_delayed_work_cancel(mvm->hw->wiphy,1904 &mvmvif->prevent_esr_done_wk);1905 1906 wiphy_delayed_work_cancel(mvm->hw->wiphy,1907 &mvmvif->mlo_int_scan_wk);1908 1909 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk);1910 1911 cancel_delayed_work_sync(&mvmvif->csa_work);1912}1913 1914static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,1915 struct ieee80211_vif *vif)1916{1917 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);1918 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);1919 struct iwl_probe_resp_data *probe_data;1920 1921 iwl_mvm_prepare_mac_removal(mvm, vif);1922 1923 if (!(vif->type == NL80211_IFTYPE_AP ||1924 vif->type == NL80211_IFTYPE_ADHOC))1925 iwl_mvm_tcm_rm_vif(mvm, vif);1926 1927 mutex_lock(&mvm->mutex);1928 1929 if (vif == mvm->csme_vif) {1930 iwl_mei_set_netdev(NULL);1931 mvm->csme_vif = NULL;1932 }1933 1934 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data,1935 lockdep_is_held(&mvm->mutex));1936 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL);1937 if (probe_data)1938 kfree_rcu(probe_data, rcu_head);1939 1940 if (mvm->bf_allowed_vif == mvmvif) {1941 mvm->bf_allowed_vif = NULL;1942 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |1943 IEEE80211_VIF_SUPPORTS_CQM_RSSI);1944 }1945 1946 if (vif->bss_conf.ftm_responder)1947 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats));1948 1949 iwl_mvm_vif_dbgfs_rm_link(mvm, vif);1950 1951 /*1952 * For AP/GO interface, the tear down of the resources allocated to the1953 * interface is be handled as part of the stop_ap flow.1954 */1955 if (vif->type == NL80211_IFTYPE_AP ||1956 vif->type == NL80211_IFTYPE_ADHOC) {1957#ifdef CONFIG_NL80211_TESTMODE1958 if (vif == mvm->noa_vif) {1959 mvm->noa_vif = NULL;1960 mvm->noa_duration = 0;1961 }1962#endif1963 goto out;1964 }1965 1966 iwl_mvm_power_update_mac(mvm);1967 1968 /* Before the interface removal, mac80211 would cancel the ROC, and the1969 * ROC worker would be scheduled if needed. The worker would be flushed1970 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no1971 * binding etc. so nothing needs to be done here.1972 */1973 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {1974 if (mvmvif->deflink.phy_ctxt) {1975 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt);1976 mvmvif->deflink.phy_ctxt = NULL;1977 }1978 mvm->p2p_device_vif = NULL;1979 }1980 1981 iwl_mvm_mac_ctxt_remove(mvm, vif);1982 1983 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL);1984 1985 if (vif->type == NL80211_IFTYPE_MONITOR)1986 mvm->monitor_on = false;1987 1988out:1989 iwl_mvm_unset_link_mapping(mvm, vif, &vif->bss_conf);1990 if (vif->type == NL80211_IFTYPE_AP ||1991 vif->type == NL80211_IFTYPE_ADHOC) {1992 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta);1993 iwl_mvm_dealloc_bcast_sta(mvm, vif);1994 }1995 1996 mutex_unlock(&mvm->mutex);1997}1998 1999struct iwl_mvm_mc_iter_data {2000 struct iwl_mvm *mvm;2001 int port_id;2002};2003 2004static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,2005 struct ieee80211_vif *vif)2006{2007 struct iwl_mvm_mc_iter_data *data = _data;2008 struct iwl_mvm *mvm = data->mvm;2009 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;2010 struct iwl_host_cmd hcmd = {2011 .id = MCAST_FILTER_CMD,2012 .flags = CMD_ASYNC,2013 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,2014 };2015 int ret, len;2016 2017 /* if we don't have free ports, mcast frames will be dropped */2018 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))2019 return;2020 2021 if (vif->type != NL80211_IFTYPE_STATION ||2022 !vif->cfg.assoc)2023 return;2024 2025 cmd->port_id = data->port_id++;2026 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);2027 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);2028 2029 hcmd.len[0] = len;2030 hcmd.data[0] = cmd;2031 2032 ret = iwl_mvm_send_cmd(mvm, &hcmd);2033 if (ret)2034 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);2035}2036 2037static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)2038{2039 struct iwl_mvm_mc_iter_data iter_data = {2040 .mvm = mvm,2041 };2042 int ret;2043 2044 lockdep_assert_held(&mvm->mutex);2045 2046 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))2047 return;2048 2049 ieee80211_iterate_active_interfaces_atomic(2050 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,2051 iwl_mvm_mc_iface_iterator, &iter_data);2052 2053 /*2054 * Send a (synchronous) ech command so that we wait for the2055 * multiple asynchronous MCAST_FILTER_CMD commands sent by2056 * the interface iterator. Otherwise, we might get here over2057 * and over again (by userspace just sending a lot of these)2058 * and the CPU can send them faster than the firmware can2059 * process them.2060 * Note that the CPU is still faster - but with this we'll2061 * actually send fewer commands overall because the CPU will2062 * not schedule the work in mac80211 as frequently if it's2063 * still running when rescheduled (possibly multiple times).2064 */2065 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);2066 if (ret)2067 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n");2068}2069 2070u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,2071 struct netdev_hw_addr_list *mc_list)2072{2073 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);2074 struct iwl_mcast_filter_cmd *cmd;2075 struct netdev_hw_addr *addr;2076 int addr_count;2077 bool pass_all;2078 int len;2079 2080 addr_count = netdev_hw_addr_list_count(mc_list);2081 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||2082 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;2083 if (pass_all)2084 addr_count = 0;2085 2086 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);2087 cmd = kzalloc(len, GFP_ATOMIC);2088 if (!cmd)2089 return 0;2090 2091 if (pass_all) {2092 cmd->pass_all = 1;2093 return (u64)(unsigned long)cmd;2094 }2095 2096 netdev_hw_addr_list_for_each(addr, mc_list) {2097 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",2098 cmd->count, addr->addr);2099 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],2100 addr->addr, ETH_ALEN);2101 cmd->count++;2102 }2103 2104 return (u64)(unsigned long)cmd;2105}2106 2107void iwl_mvm_configure_filter(struct ieee80211_hw *hw,2108 unsigned int changed_flags,2109 unsigned int *total_flags, u64 multicast)2110{2111 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);2112 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;2113 2114 guard(mvm)(mvm);2115 2116 /* replace previous configuration */2117 kfree(mvm->mcast_filter_cmd);2118 mvm->mcast_filter_cmd = cmd;2119 2120 if (!cmd)2121 goto out;2122 2123 if (changed_flags & FIF_ALLMULTI)2124 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI);2125 2126 if (cmd->pass_all)2127 cmd->count = 0;2128 2129 iwl_mvm_recalc_multicast(mvm);2130out:2131 *total_flags = 0;2132}2133 2134static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,2135 struct ieee80211_vif *vif,2136 unsigned int filter_flags,2137 unsigned int changed_flags)2138{2139 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);2140 2141 /* We support only filter for probe requests */2142 if (!(changed_flags & FIF_PROBE_REQ))2143 return;2144 2145 /* Supported only for p2p client interfaces */2146 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc ||2147 !vif->p2p)2148 return;2149 2150 guard(mvm)(mvm);2151 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);2152}2153 2154int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif)2155{2156 struct iwl_mu_group_mgmt_cmd cmd = {};2157 2158 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,2159 WLAN_MEMBERSHIP_LEN);2160 memcpy(cmd.user_position, vif->bss_conf.mu_group.position,2161 WLAN_USER_POSITION_LEN);2162 2163 return iwl_mvm_send_cmd_pdu(mvm,2164 WIDE_ID(DATA_PATH_GROUP,2165 UPDATE_MU_GROUPS_CMD),2166 0, sizeof(cmd), &cmd);2167}2168 2169static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,2170 struct ieee80211_vif *vif)2171{2172 if (vif->bss_conf.mu_mimo_owner) {2173 struct iwl_mu_group_mgmt_notif *notif = _data;2174 2175 /*2176 * MU-MIMO Group Id action frame is little endian. We treat2177 * the data received from firmware as if it came from the2178 * action frame, so no conversion is needed.2179 */2180 ieee80211_update_mu_groups(vif, 0,2181 (u8 *)¬if->membership_status,2182 (u8 *)¬if->user_position);2183 }2184}2185 2186void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,2187 struct iwl_rx_cmd_buffer *rxb)2188{2189 struct iwl_rx_packet *pkt = rxb_addr(rxb);2190 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;2191 2192 ieee80211_iterate_active_interfaces_atomic(2193 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,2194 iwl_mvm_mu_mimo_iface_iterator, notif);2195}2196 2197static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit)2198{2199 u8 byte_num = ppe_pos_bit / 8;2200 u8 bit_num = ppe_pos_bit % 8;2201 u8 residue_bits;2202 u8 res;2203 2204 if (bit_num <= 5)2205 return (ppe[byte_num] >> bit_num) &2206 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1);2207 2208 /*2209 * If bit_num > 5, we have to combine bits with next byte.2210 * Calculate how many bits we need to take from current byte (called2211 * here "residue_bits"), and add them to bits from next byte.2212 */2213 2214 residue_bits = 8 - bit_num;2215 2216 res = (ppe[byte_num + 1] &2217 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) <<2218 residue_bits;2219 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1);2220 2221 return res;2222}2223 2224static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm,2225 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss,2226 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit,2227 bool inheritance)2228{2229 int i;2230 2231 /*2232 * FW currently supports only nss == MAX_HE_SUPP_NSS2233 *2234 * If nss > MAX: we can ignore values we don't support2235 * If nss < MAX: we can set zeros in other streams2236 */2237 if (nss > MAX_HE_SUPP_NSS) {2238 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss,2239 MAX_HE_SUPP_NSS);2240 nss = MAX_HE_SUPP_NSS;2241 }2242 2243 for (i = 0; i < nss; i++) {2244 u8 ru_index_tmp = ru_index_bitmap << 1;2245 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE;2246 u8 bw;2247 2248 for (bw = 0;2249 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);2250 bw++) {2251 ru_index_tmp >>= 1;2252 2253 /*2254 * According to the 11be spec, if for a specific BW the PPE Thresholds2255 * isn't present - it should inherit the thresholds from the last2256 * BW for which we had PPE Thresholds. In 11ax though, we don't have2257 * this inheritance - continue in this case2258 */2259 if (!(ru_index_tmp & 1)) {2260 if (inheritance)2261 goto set_thresholds;2262 else2263 continue;2264 }2265 2266 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit);2267 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE;2268 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit);2269 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE;2270 2271set_thresholds:2272 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th;2273 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th;2274 }2275 }2276}2277 2278static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm,2279 struct ieee80211_link_sta *link_sta,2280 struct iwl_he_pkt_ext_v2 *pkt_ext,2281 bool inheritance)2282{2283 u8 nss = (link_sta->he_cap.ppe_thres[0] &2284 IEEE80211_PPE_THRES_NSS_MASK) + 1;2285 u8 *ppe = &link_sta->he_cap.ppe_thres[0];2286 u8 ru_index_bitmap =2287 u8_get_bits(*ppe,2288 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);2289 /* Starting after PPE header */2290 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE;2291 2292 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit,2293 inheritance);2294}2295 2296static int2297iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext,2298 u8 nominal_padding)2299{2300 int low_th = -1;2301 int high_th = -1;2302 int i;2303 2304 /* all the macros are the same for EHT and HE */2305 switch (nominal_padding) {2306 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US:2307 low_th = IWL_HE_PKT_EXT_NONE;2308 high_th = IWL_HE_PKT_EXT_NONE;2309 break;2310 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US:2311 low_th = IWL_HE_PKT_EXT_BPSK;2312 high_th = IWL_HE_PKT_EXT_NONE;2313 break;2314 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US:2315 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US:2316 low_th = IWL_HE_PKT_EXT_NONE;2317 high_th = IWL_HE_PKT_EXT_BPSK;2318 break;2319 }2320 2321 if (low_th < 0 || high_th < 0)2322 return -EINVAL;2323 2324 /* Set the PPE thresholds accordingly */2325 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {2326 u8 bw;2327 2328 for (bw = 0;2329 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);2330 bw++) {2331 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th;2332 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th;2333 }2334 }2335 2336 return 0;2337}2338 2339static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext,2340 u8 nominal_padding)2341{2342 int i;2343 2344 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {2345 u8 bw;2346 2347 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);2348 bw++) {2349 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0];2350 2351 if (nominal_padding >2352 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US &&2353 qam_th[1] == IWL_HE_PKT_EXT_NONE)2354 qam_th[1] = IWL_HE_PKT_EXT_4096QAM;2355 else if (nominal_padding ==2356 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US &&2357 qam_th[0] == IWL_HE_PKT_EXT_NONE &&2358 qam_th[1] == IWL_HE_PKT_EXT_NONE)2359 qam_th[0] = IWL_HE_PKT_EXT_4096QAM;2360 }2361 }2362}2363 2364/* Set the pkt_ext field according to PPE Thresholds element */2365int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm,2366 struct ieee80211_link_sta *link_sta,2367 struct iwl_he_pkt_ext_v2 *pkt_ext)2368{2369 u8 nominal_padding;2370 int i, ret = 0;2371 2372 if (WARN_ON(!link_sta))2373 return -EINVAL;2374 2375 /* Initialize the PPE thresholds to "None" (7), as described in Table2376 * 9-262ac of 80211.ax/D3.0.2377 */2378 memset(pkt_ext, IWL_HE_PKT_EXT_NONE,2379 sizeof(struct iwl_he_pkt_ext_v2));2380 2381 if (link_sta->eht_cap.has_eht) {2382 nominal_padding =2383 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5],2384 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK);2385 2386 /* If PPE Thresholds exists, parse them into a FW-familiar2387 * format.2388 */2389 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] &2390 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) {2391 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] &2392 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1;2393 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0];2394 u8 ru_index_bitmap =2395 u16_get_bits(*ppe,2396 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK);2397 /* Starting after PPE header */2398 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE;2399 2400 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap,2401 ppe, ppe_pos_bit, true);2402 /* EHT PPE Thresholds doesn't exist - set the API according to2403 * HE PPE Tresholds2404 */2405 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] &2406 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {2407 /* Even though HE Capabilities IE doesn't contain PPE2408 * Thresholds for BW 320Mhz, thresholds for this BW will2409 * be filled in with the same values as 160Mhz, due to2410 * the inheritance, as required.2411 */2412 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext,2413 true);2414 2415 /* According to the requirements, for MCSs 12-13 the2416 * maximum value between HE PPE Threshold and Common2417 * Nominal Packet Padding needs to be taken2418 */2419 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding);2420 2421 /* if PPE Thresholds doesn't present in both EHT IE and HE IE -2422 * take the Thresholds from Common Nominal Packet Padding field2423 */2424 } else {2425 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext,2426 nominal_padding);2427 }2428 } else if (link_sta->he_cap.has_he) {2429 /* If PPE Thresholds exist, parse them into a FW-familiar format. */2430 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] &2431 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {2432 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext,2433 false);2434 /* PPE Thresholds doesn't exist - set the API PPE values2435 * according to Common Nominal Packet Padding field.2436 */2437 } else {2438 nominal_padding =2439 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9],2440 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK);2441 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED)2442 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext,2443 nominal_padding);2444 }2445 }2446 2447 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {2448 int bw;2449 2450 for (bw = 0;2451 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]);2452 bw++) {2453 u8 *qam_th =2454 &pkt_ext->pkt_ext_qam_th[i][bw][0];2455 2456 IWL_DEBUG_HT(mvm,2457 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n",2458 i, bw, qam_th[0], qam_th[1]);2459 }2460 }2461 return ret;2462}2463 2464/*2465 * This function sets the MU EDCA parameters ans returns whether MU EDCA2466 * is enabled or not2467 */2468bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm,2469 const struct iwl_mvm_vif_link_info *link_info,2470 struct iwl_he_backoff_conf *trig_based_txf)2471{2472 int i;2473 /* Mark MU EDCA as enabled, unless none detected on some AC */2474 bool mu_edca_enabled = true;2475 2476 for (i = 0; i < IEEE80211_NUM_ACS; i++) {2477 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca =2478 &link_info->queue_params[i].mu_edca_param_rec;2479 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i);2480 2481 if (!link_info->queue_params[i].mu_edca) {2482 mu_edca_enabled = false;2483 break;2484 }2485 2486 trig_based_txf[ac].cwmin =2487 cpu_to_le16(mu_edca->ecw_min_max & 0xf);2488 trig_based_txf[ac].cwmax =2489 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4);2490 trig_based_txf[ac].aifsn =2491 cpu_to_le16(mu_edca->aifsn & 0xf);2492 trig_based_txf[ac].mu_time =2493 cpu_to_le16(mu_edca->mu_edca_timer);2494 }2495 2496 return mu_edca_enabled;2497}2498 2499bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif)2500{2501 const struct ieee80211_supported_band *sband;2502 const struct ieee80211_sta_he_cap *own_he_cap = NULL;2503 2504 /* This capability is the same for all bands,2505 * so take it from one of them.2506 */2507 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];2508 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif);2509 2510 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] &2511 IEEE80211_HE_MAC_CAP2_ACK_EN));2512}2513 2514__le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta,2515 struct ieee80211_link_sta *link_sta)2516{2517 u8 *mac_cap_info =2518 &link_sta->he_cap.he_cap_elem.mac_cap_info[0];2519 __le32 htc_flags = 0;2520 2521 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE)2522 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT);2523 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) ||2524 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) {2525 u8 link_adap =2526 ((mac_cap_info[2] &2527 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) +2528 (mac_cap_info[1] &2529 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION);2530 2531 if (link_adap == 2)2532 htc_flags |=2533 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED);2534 else if (link_adap == 3)2535 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH);2536 }2537 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR)2538 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP);2539 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL)2540 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP);2541 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR)2542 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP);2543 2544 return htc_flags;2545}2546 2547static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm,2548 struct ieee80211_vif *vif, u8 sta_id)2549{2550 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);2551 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = {2552 .sta_id = sta_id,2553 .tid_limit = IWL_MAX_TID_COUNT,2554 .bss_color = vif->bss_conf.he_bss_color.color,2555 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext,2556 .frame_time_rts_th =2557 cpu_to_le16(vif->bss_conf.frame_time_rts_th),2558 };2559 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {};2560 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD);2561 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2);2562 int size;2563 struct ieee80211_sta *sta;2564 u32 flags;2565 int i;2566 void *cmd;2567 2568 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE))2569 ver = 1;2570 2571 switch (ver) {2572 case 1:2573 /* same layout as v2 except some data at the end */2574 cmd = &sta_ctxt_cmd_v2;2575 size = sizeof(struct iwl_he_sta_context_cmd_v1);2576 break;2577 case 2:2578 cmd = &sta_ctxt_cmd_v2;2579 size = sizeof(struct iwl_he_sta_context_cmd_v2);2580 break;2581 case 3:2582 cmd = &sta_ctxt_cmd;2583 size = sizeof(struct iwl_he_sta_context_cmd_v3);2584 break;2585 default:2586 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver);2587 return;2588 }2589 2590 rcu_read_lock();2591 2592 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]);2593 if (IS_ERR_OR_NULL(sta)) {2594 rcu_read_unlock();2595 WARN(1, "Can't find STA to configure HE\n");2596 return;2597 }2598 2599 if (!sta->deflink.he_cap.has_he) {2600 rcu_read_unlock();2601 return;2602 }2603 2604 flags = 0;2605 2606 /* Block 26-tone RU OFDMA transmissions */2607 if (mvmvif->deflink.he_ru_2mhz_block)2608 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK;2609 2610 /* HTC flags */2611 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink);2612 2613 /* PPE Thresholds */2614 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext))2615 flags |= STA_CTXT_HE_PACKET_EXT;2616 2617 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] &2618 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP)2619 flags |= STA_CTXT_HE_32BIT_BA_BITMAP;2620 2621 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] &2622 IEEE80211_HE_MAC_CAP2_ACK_EN)2623 flags |= STA_CTXT_HE_ACK_ENABLED;2624 2625 rcu_read_unlock();2626 2627 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink,2628 &sta_ctxt_cmd.trig_based_txf[0]))2629 flags |= STA_CTXT_HE_MU_EDCA_CW;2630 2631 if (vif->bss_conf.uora_exists) {2632 flags |= STA_CTXT_HE_TRIG_RND_ALLOC;2633 2634 sta_ctxt_cmd.rand_alloc_ecwmin =2635 vif->bss_conf.uora_ocw_range & 0x7;2636 sta_ctxt_cmd.rand_alloc_ecwmax =2637 (vif->bss_conf.uora_ocw_range >> 3) & 0x7;2638 }2639 2640 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif))2641 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED;2642 2643 if (vif->bss_conf.nontransmitted) {2644 flags |= STA_CTXT_HE_REF_BSSID_VALID;2645 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr,2646 vif->bss_conf.transmitter_bssid);2647 sta_ctxt_cmd.max_bssid_indicator =2648 vif->bss_conf.bssid_indicator;2649 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index;2650 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap;2651 sta_ctxt_cmd.profile_periodicity =2652 vif->bss_conf.profile_periodicity;2653 }2654 2655 sta_ctxt_cmd.flags = cpu_to_le32(flags);2656 2657 if (ver < 3) {2658 /* fields before pkt_ext */2659 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) !=2660 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext));2661 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd,2662 offsetof(typeof(sta_ctxt_cmd), pkt_ext));2663 2664 /* pkt_ext */2665 for (i = 0;2666 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th);2667 i++) {2668 u8 bw;2669 2670 for (bw = 0;2671 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]);2672 bw++) {2673 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) !=2674 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw]));2675 2676 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw],2677 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw],2678 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]));2679 }2680 }2681 2682 /* fields after pkt_ext */2683 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) -2684 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) !=2685 sizeof(sta_ctxt_cmd_v2) -2686 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext));2687 memcpy((u8 *)&sta_ctxt_cmd_v2 +2688 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext),2689 (u8 *)&sta_ctxt_cmd +2690 offsetofend(typeof(sta_ctxt_cmd), pkt_ext),2691 sizeof(sta_ctxt_cmd) -2692 offsetofend(typeof(sta_ctxt_cmd), pkt_ext));2693 sta_ctxt_cmd_v2.reserved3 = 0;2694 }2695 2696 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd))2697 IWL_ERR(mvm, "Failed to config FW to work HE!\n");2698}2699 2700void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif,2701 u32 duration_override, unsigned int link_id)2702{2703 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;2704 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;2705 2706 if (duration_override > duration)2707 duration = duration_override;2708 2709 /* Try really hard to protect the session and hear a beacon2710 * The new session protection command allows us to protect the2711 * session for a much longer time since the firmware will internally2712 * create two events: a 300TU one with a very high priority that2713 * won't be fragmented which should be enough for 99% of the cases,2714 * and another one (which we configure here to be 900TU long) which2715 * will have a slightly lower priority, but more importantly, can be2716 * fragmented so that it'll allow other activities to run.2717 */2718 if (fw_has_capa(&mvm->fw->ucode_capa,2719 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD))2720 iwl_mvm_schedule_session_protection(mvm, vif, 900,2721 min_duration, false,2722 link_id);2723 else2724 iwl_mvm_protect_session(mvm, vif, duration,2725 min_duration, 500, false);2726}2727 2728/* Handle association common part to MLD and non-MLD modes */2729void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm,2730 struct ieee80211_vif *vif,2731 u64 changes)2732{2733 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);2734 int ret;2735 int link_id;2736 2737 /* The firmware tracks the MU-MIMO group on its own.2738 * However, on HW restart we should restore this data.2739 */2740 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&2741 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) {2742 ret = iwl_mvm_update_mu_groups(mvm, vif);2743 if (ret)2744 IWL_ERR(mvm,2745 "failed to update VHT MU_MIMO groups\n");2746 }2747 2748 iwl_mvm_recalc_multicast(mvm);2749 2750 /* reset rssi values */2751 for_each_mvm_vif_valid_link(mvmvif, link_id)2752 mvmvif->link[link_id]->bf_data.ave_beacon_signal = 0;2753 2754 iwl_mvm_bt_coex_vif_change(mvm);2755 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT,2756 IEEE80211_SMPS_AUTOMATIC);2757 if (fw_has_capa(&mvm->fw->ucode_capa,2758 IWL_UCODE_TLV_CAPA_UMAC_SCAN))2759 iwl_mvm_config_scan(mvm);2760}2761 2762/* Execute the common part for MLD and non-MLD modes */2763void2764iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm,2765 struct ieee80211_vif *vif,2766 struct ieee80211_bss_conf *link_conf,2767 u64 changes)2768{2769 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);2770 int ret;2771 2772 if (changes & BSS_CHANGED_BEACON_INFO) {2773 /* We received a beacon from the associated AP so2774 * remove the session protection.2775 */2776 iwl_mvm_stop_session_protection(mvm, vif);2777 2778 iwl_mvm_sf_update(mvm, vif, false);2779 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif));2780 }2781 2782 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |2783 /* Send power command on every beacon change,2784 * because we may have not enabled beacon abort yet.2785 */2786 BSS_CHANGED_BEACON_INFO)) {2787 ret = iwl_mvm_power_update_mac(mvm);2788 if (ret)2789 IWL_ERR(mvm, "failed to update power mode\n");2790 }2791 2792 if (changes & BSS_CHANGED_CQM) {2793 struct iwl_mvm_vif_link_info *link_info =2794 mvmvif->link[link_conf->link_id];2795 2796 IWL_DEBUG_MAC80211(mvm, "CQM info_changed\n");2797 if (link_info)2798 link_info->bf_data.last_cqm_event = 0;2799 2800 if (mvmvif->bf_enabled) {2801 /* FIXME: need to update per link when FW API will2802 * support it2803 */2804 ret = iwl_mvm_enable_beacon_filter(mvm, vif);2805 if (ret)2806 IWL_ERR(mvm,2807 "failed to update CQM thresholds\n");2808 }2809 }2810 2811 if (changes & BSS_CHANGED_BANDWIDTH)2812 iwl_mvm_update_link_smps(vif, link_conf);2813 2814 if (changes & BSS_CHANGED_TPE) {2815 IWL_DEBUG_CALIB(mvm, "Changing TPE\n");2816 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif,2817 link_conf,2818 false);2819 }2820}2821 2822static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,2823 struct ieee80211_vif *vif,2824 struct ieee80211_bss_conf *bss_conf,2825 u64 changes)2826{2827 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);2828 int ret;2829 int i;2830 2831 /*2832 * Re-calculate the tsf id, as the leader-follower relations depend2833 * on the beacon interval, which was not known when the station2834 * interface was added.2835 */2836 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) {2837 if ((vif->bss_conf.he_support &&2838 !iwlwifi_mod_params.disable_11ax))2839 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id);2840 2841 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);2842 }2843 2844 /* Update MU EDCA params */2845 if (changes & BSS_CHANGED_QOS && mvmvif->associated &&2846 vif->cfg.assoc &&2847 (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax))2848 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id);2849 2850 /*2851 * If we're not associated yet, take the (new) BSSID before associating2852 * so the firmware knows. If we're already associated, then use the old2853 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC2854 * branch for disassociation below.2855 */2856 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)2857 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN);2858 2859 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid);2860 if (ret)2861 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);2862 2863 /* after sending it once, adopt mac80211 data */2864 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN);2865 mvmvif->associated = vif->cfg.assoc;2866 2867 if (changes & BSS_CHANGED_ASSOC) {2868 if (vif->cfg.assoc) {2869 mvmvif->session_prot_connection_loss = false;2870 2871 /* clear statistics to get clean beacon counter */2872 iwl_mvm_request_statistics(mvm, true);2873 for_each_mvm_vif_valid_link(mvmvif, i)2874 memset(&mvmvif->link[i]->beacon_stats, 0,2875 sizeof(mvmvif->link[i]->beacon_stats));2876 2877 /* add quota for this interface */2878 ret = iwl_mvm_update_quotas(mvm, true, NULL);2879 if (ret) {2880 IWL_ERR(mvm, "failed to update quotas\n");2881 return;2882 }2883 2884 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,2885 &mvm->status) &&2886 !fw_has_capa(&mvm->fw->ucode_capa,2887 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) {2888 /*2889 * If we're restarting then the firmware will2890 * obviously have lost synchronisation with2891 * the AP. It will attempt to synchronise by2892 * itself, but we can make it more reliable by2893 * scheduling a session protection time event.2894 *2895 * The firmware needs to receive a beacon to2896 * catch up with synchronisation, use 110% of2897 * the beacon interval.2898 *2899 * Set a large maximum delay to allow for more2900 * than a single interface.2901 *2902 * For new firmware versions, rely on the2903 * firmware. This is relevant for DCM scenarios2904 * only anyway.2905 */2906 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;2907 iwl_mvm_protect_session(mvm, vif, dur, dur,2908 5 * dur, false);2909 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,2910 &mvm->status) &&2911 !vif->bss_conf.dtim_period) {2912 /*2913 * If we're not restarting and still haven't2914 * heard a beacon (dtim period unknown) then2915 * make sure we still have enough minimum time2916 * remaining in the time event, since the auth2917 * might actually have taken quite a while2918 * (especially for SAE) and so the remaining2919 * time could be small without us having heard2920 * a beacon yet.2921 */2922 iwl_mvm_protect_assoc(mvm, vif, 0, 0);2923 }2924 2925 iwl_mvm_sf_update(mvm, vif, false);2926 iwl_mvm_power_vif_assoc(mvm, vif);2927 if (vif->p2p) {2928 iwl_mvm_update_smps(mvm, vif,2929 IWL_MVM_SMPS_REQ_PROT,2930 IEEE80211_SMPS_DYNAMIC, 0);2931 }2932 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) {2933 iwl_mvm_mei_host_disassociated(mvm);2934 /*2935 * If update fails - SF might be running in associated2936 * mode while disassociated - which is forbidden.2937 */2938 ret = iwl_mvm_sf_update(mvm, vif, false);2939 WARN_ONCE(ret &&2940 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,2941 &mvm->status),2942 "Failed to update SF upon disassociation\n");2943 2944 /*2945 * If we get an assert during the connection (after the2946 * station has been added, but before the vif is set2947 * to associated), mac80211 will re-add the station and2948 * then configure the vif. Since the vif is not2949 * associated, we would remove the station here and2950 * this would fail the recovery.2951 */2952 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,2953 &mvm->status)) {2954 /* first remove remaining keys */2955 iwl_mvm_sec_key_remove_ap(mvm, vif,2956 &mvmvif->deflink, 0);2957 2958 /*2959 * Remove AP station now that2960 * the MAC is unassoc2961 */2962 ret = iwl_mvm_rm_sta_id(mvm, vif,2963 mvmvif->deflink.ap_sta_id);2964 if (ret)2965 IWL_ERR(mvm,2966 "failed to remove AP station\n");2967 2968 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA;2969 }2970 2971 /* remove quota for this interface */2972 ret = iwl_mvm_update_quotas(mvm, false, NULL);2973 if (ret)2974 IWL_ERR(mvm, "failed to update quotas\n");2975 2976 /* this will take the cleared BSSID from bss_conf */2977 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);2978 if (ret)2979 IWL_ERR(mvm,2980 "failed to update MAC %pM (clear after unassoc)\n",2981 vif->addr);2982 }2983 2984 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes);2985 }2986 2987 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf,2988 changes);2989}2990 2991bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw,2992 struct ieee80211_vif *vif,2993 int *ret)2994{2995 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);2996 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);2997 int i;2998 2999 lockdep_assert_held(&mvm->mutex);3000 3001 mvmvif->ap_assoc_sta_count = 0;3002 3003 /* must be set before quota calculations */3004 mvmvif->ap_ibss_active = true;3005 3006 /* send all the early keys to the device now */3007 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {3008 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i];3009 3010 if (!key)3011 continue;3012 3013 mvmvif->ap_early_keys[i] = NULL;3014 3015 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key);3016 if (*ret)3017 return true;3018 }3019 3020 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {3021 iwl_mvm_vif_set_low_latency(mvmvif, true,3022 LOW_LATENCY_VIF_TYPE);3023 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id);3024 }3025 3026 /* power updated needs to be done before quotas */3027 iwl_mvm_power_update_mac(mvm);3028 3029 return false;3030}3031 3032static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,3033 struct ieee80211_vif *vif,3034 struct ieee80211_bss_conf *link_conf)3035{3036 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);3037 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);3038 int ret;3039 3040 mutex_lock(&mvm->mutex);3041 3042 /*3043 * Re-calculate the tsf id, as the leader-follower relations depend on3044 * the beacon interval, which was not known when the AP interface3045 * was added.3046 */3047 if (vif->type == NL80211_IFTYPE_AP)3048 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);3049 3050 /* For older devices need to send beacon template before adding mac3051 * context. For the newer, the beacon is a resource that belongs to a3052 * MAC, so need to send beacon template after adding the mac.3053 */3054 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) {3055 /* Add the mac context */3056 ret = iwl_mvm_mac_ctxt_add(mvm, vif);3057 if (ret)3058 goto out_unlock;3059 3060 /* Send the beacon template */3061 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf);3062 if (ret)3063 goto out_unlock;3064 } else {3065 /* Send the beacon template */3066 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf);3067 if (ret)3068 goto out_unlock;3069 3070 /* Add the mac context */3071 ret = iwl_mvm_mac_ctxt_add(mvm, vif);3072 if (ret)3073 goto out_unlock;3074 }3075 3076 /* Perform the binding */3077 ret = iwl_mvm_binding_add_vif(mvm, vif);3078 if (ret)3079 goto out_remove;3080 3081 /*3082 * This is not very nice, but the simplest:3083 * For older FWs adding the mcast sta before the bcast station may3084 * cause assert 0x2b00.3085 * This is fixed in later FW so make the order of removal depend on3086 * the TLV3087 */3088 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) {3089 ret = iwl_mvm_add_mcast_sta(mvm, vif);3090 if (ret)3091 goto out_unbind;3092 /*3093 * Send the bcast station. At this stage the TBTT and DTIM time3094 * events are added and applied to the scheduler3095 */3096 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);3097 if (ret) {3098 iwl_mvm_rm_mcast_sta(mvm, vif);3099 goto out_unbind;3100 }3101 } else {3102 /*3103 * Send the bcast station. At this stage the TBTT and DTIM time3104 * events are added and applied to the scheduler3105 */3106 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);3107 if (ret)3108 goto out_unbind;3109 ret = iwl_mvm_add_mcast_sta(mvm, vif);3110 if (ret) {3111 iwl_mvm_send_rm_bcast_sta(mvm, vif);3112 goto out_unbind;3113 }3114 }3115 3116 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret))3117 goto out_failed;3118 3119 ret = iwl_mvm_update_quotas(mvm, false, NULL);3120 if (ret)3121 goto out_failed;3122 3123 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */3124 if (vif->p2p && mvm->p2p_device_vif)3125 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);3126 3127 iwl_mvm_bt_coex_vif_change(mvm);3128 3129 /* we don't support TDLS during DCM */3130 if (iwl_mvm_phy_ctx_count(mvm) > 1)3131 iwl_mvm_teardown_tdls_peers(mvm);3132 3133 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf);3134 3135 goto out_unlock;3136 3137out_failed:3138 iwl_mvm_power_update_mac(mvm);3139 mvmvif->ap_ibss_active = false;3140 iwl_mvm_send_rm_bcast_sta(mvm, vif);3141 iwl_mvm_rm_mcast_sta(mvm, vif);3142out_unbind:3143 iwl_mvm_binding_remove_vif(mvm, vif);3144out_remove:3145 iwl_mvm_mac_ctxt_remove(mvm, vif);3146out_unlock:3147 mutex_unlock(&mvm->mutex);3148 return ret;3149}3150 3151static int iwl_mvm_start_ap(struct ieee80211_hw *hw,3152 struct ieee80211_vif *vif,3153 struct ieee80211_bss_conf *link_conf)3154{3155 return iwl_mvm_start_ap_ibss(hw, vif, link_conf);3156}3157 3158static int iwl_mvm_start_ibss(struct ieee80211_hw *hw,3159 struct ieee80211_vif *vif)3160{3161 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf);3162}3163 3164/* Common part for MLD and non-MLD ops */3165void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm,3166 struct ieee80211_vif *vif)3167{3168 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);3169 3170 lockdep_assert_held(&mvm->mutex);3171 3172 iwl_mvm_prepare_mac_removal(mvm, vif);3173 3174 /* Handle AP stop while in CSA */3175 if (rcu_access_pointer(mvm->csa_vif) == vif) {3176 iwl_mvm_remove_time_event(mvm, mvmvif,3177 &mvmvif->time_event_data);3178 RCU_INIT_POINTER(mvm->csa_vif, NULL);3179 mvmvif->csa_countdown = false;3180 }3181 3182 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {3183 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);3184 mvm->csa_tx_block_bcn_timeout = 0;3185 }3186 3187 mvmvif->ap_ibss_active = false;3188 mvm->ap_last_beacon_gp2 = 0;3189 3190 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {3191 iwl_mvm_vif_set_low_latency(mvmvif, false,3192 LOW_LATENCY_VIF_TYPE);3193 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id);3194 }3195 3196 iwl_mvm_bt_coex_vif_change(mvm);3197}3198 3199static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,3200 struct ieee80211_vif *vif,3201 struct ieee80211_bss_conf *link_conf)3202{3203 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);3204 3205 guard(mvm)(mvm);3206 3207 iwl_mvm_stop_ap_ibss_common(mvm, vif);3208 3209 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */3210 if (vif->p2p && mvm->p2p_device_vif)3211 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);3212 3213 iwl_mvm_update_quotas(mvm, false, NULL);3214 3215 iwl_mvm_ftm_responder_clear(mvm, vif);3216 3217 /*3218 * This is not very nice, but the simplest:3219 * For older FWs removing the mcast sta before the bcast station may3220 * cause assert 0x2b00.3221 * This is fixed in later FW (which will stop beaconing when removing3222 * bcast station).3223 * So make the order of removal depend on the TLV3224 */3225 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))3226 iwl_mvm_rm_mcast_sta(mvm, vif);3227 iwl_mvm_send_rm_bcast_sta(mvm, vif);3228 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))3229 iwl_mvm_rm_mcast_sta(mvm, vif);3230 iwl_mvm_binding_remove_vif(mvm, vif);3231 3232 iwl_mvm_power_update_mac(mvm);3233 3234 iwl_mvm_mac_ctxt_remove(mvm, vif);3235}3236 3237static void iwl_mvm_stop_ap(struct ieee80211_hw *hw,3238 struct ieee80211_vif *vif,3239 struct ieee80211_bss_conf *link_conf)3240{3241 iwl_mvm_stop_ap_ibss(hw, vif, link_conf);3242}3243 3244static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw,3245 struct ieee80211_vif *vif)3246{3247 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf);3248}3249 3250static void3251iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,3252 struct ieee80211_vif *vif,3253 struct ieee80211_bss_conf *bss_conf,3254 u64 changes)3255{3256 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);3257 3258 /* Changes will be applied when the AP/IBSS is started */3259 if (!mvmvif->ap_ibss_active)3260 return;3261 3262 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |3263 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&3264 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))3265 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);3266 3267 /* Need to send a new beacon template to the FW */3268 if (changes & BSS_CHANGED_BEACON &&3269 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf))3270 IWL_WARN(mvm, "Failed updating beacon data\n");3271 3272 if (changes & BSS_CHANGED_FTM_RESPONDER) {3273 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf);3274 3275 if (ret)3276 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n",3277 ret);3278 }3279 3280}3281 3282static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,3283 struct ieee80211_vif *vif,3284 struct ieee80211_bss_conf *bss_conf,3285 u64 changes)3286{3287 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);3288 3289 guard(mvm)(mvm);3290 3291 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle)3292 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);3293 3294 switch (vif->type) {3295 case NL80211_IFTYPE_STATION:3296 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);3297 break;3298 case NL80211_IFTYPE_AP:3299 case NL80211_IFTYPE_ADHOC:3300 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);3301 break;3302 case NL80211_IFTYPE_MONITOR:3303 if (changes & BSS_CHANGED_MU_GROUPS)3304 iwl_mvm_update_mu_groups(mvm, vif);3305 break;3306 default:3307 /* shouldn't happen */3308 WARN_ON_ONCE(1);3309 }3310 3311 if (changes & BSS_CHANGED_TXPOWER) {3312 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n",3313 bss_conf->txpower);3314 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);3315 }3316}3317 3318int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,3319 struct ieee80211_scan_request *hw_req)3320{3321 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);3322 3323 if (hw_req->req.n_channels == 0 ||3324 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)3325 return -EINVAL;3326 3327 guard(mvm)(mvm);3328 return iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);3329}3330 3331void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,3332 struct ieee80211_vif *vif)3333{3334 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);3335 3336 guard(mvm)(mvm);3337 3338 /* Due to a race condition, it's possible that mac80211 asks3339 * us to stop a hw_scan when it's already stopped. This can3340 * happen, for instance, if we stopped the scan ourselves,3341 * called ieee80211_scan_completed() and the userspace called3342 * cancel scan scan before ieee80211_scan_work() could run.3343 * To handle that, simply return if the scan is not running.3344 */3345 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)3346 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);3347}3348 3349void3350iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,3351 struct ieee80211_sta *sta, u16 tids,3352 int num_frames,3353 enum ieee80211_frame_release_type reason,3354 bool more_data)3355{3356 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);3357 3358 /* Called when we need to transmit (a) frame(s) from mac80211 */3359 3360 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,3361 tids, more_data, false);3362}3363 3364void3365iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,3366 struct ieee80211_sta *sta, u16 tids,3367 int num_frames,3368 enum ieee80211_frame_release_type reason,3369 bool more_data)3370{3371 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);3372 3373 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */3374 3375 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,3376 tids, more_data, true);3377}3378 3379static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,3380 enum sta_notify_cmd cmd,3381 struct ieee80211_sta *sta)3382{3383 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);3384 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);3385 unsigned long txqs = 0, tids = 0;3386 int tid;3387 3388 /*3389 * If we have TVQM then we get too high queue numbers - luckily3390 * we really shouldn't get here with that because such hardware3391 * should have firmware supporting buffer station offload.3392 */3393 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))3394 return;3395 3396 spin_lock_bh(&mvmsta->lock);3397 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) {3398 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];3399 3400 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE)3401 continue;3402 3403 __set_bit(tid_data->txq_id, &txqs);3404 3405 if (iwl_mvm_tid_queued(mvm, tid_data) == 0)3406 continue;3407 3408 __set_bit(tid, &tids);3409 }3410 3411 switch (cmd) {3412 case STA_NOTIFY_SLEEP:3413 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)3414 ieee80211_sta_set_buffered(sta, tid, true);3415 3416 if (txqs)3417 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);3418 /*3419 * The fw updates the STA to be asleep. Tx packets on the Tx3420 * queues to this station will not be transmitted. The fw will3421 * send a Tx response with TX_STATUS_FAIL_DEST_PS.3422 */3423 break;3424 case STA_NOTIFY_AWAKE:3425 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA))3426 break;3427 3428 if (txqs)3429 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);3430 iwl_mvm_sta_modify_ps_wake(mvm, sta);3431 break;3432 default:3433 break;3434 }3435 spin_unlock_bh(&mvmsta->lock);3436}3437 3438void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,3439 enum sta_notify_cmd cmd, struct ieee80211_sta *sta)3440{3441 __iwl_mvm_mac_sta_notify(hw, cmd, sta);3442}3443 3444void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)3445{3446 struct iwl_rx_packet *pkt = rxb_addr(rxb);3447 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data;3448 struct ieee80211_sta *sta;3449 struct iwl_mvm_sta *mvmsta;3450 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE);3451 3452 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations))3453 return;3454 3455 rcu_read_lock();3456 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);3457 if (WARN_ON(IS_ERR_OR_NULL(sta))) {3458 rcu_read_unlock();3459 return;3460 }3461 3462 mvmsta = iwl_mvm_sta_from_mac80211(sta);3463 3464 if (!mvmsta->vif ||3465 mvmsta->vif->type != NL80211_IFTYPE_AP) {3466 rcu_read_unlock();3467 return;3468 }3469 3470 if (mvmsta->sleeping != sleeping) {3471 mvmsta->sleeping = sleeping;3472 __iwl_mvm_mac_sta_notify(mvm->hw,3473 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE,3474 sta);3475 ieee80211_sta_ps_transition(sta, sleeping);3476 }3477 3478 if (sleeping) {3479 switch (notif->type) {3480 case IWL_MVM_PM_EVENT_AWAKE:3481 case IWL_MVM_PM_EVENT_ASLEEP:3482 break;3483 case IWL_MVM_PM_EVENT_UAPSD:3484 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS);3485 break;3486 case IWL_MVM_PM_EVENT_PS_POLL:3487 ieee80211_sta_pspoll(sta);3488 break;3489 default:3490 break;3491 }3492 }3493 3494 rcu_read_unlock();3495}3496 3497void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,3498 struct ieee80211_vif *vif,3499 struct ieee80211_sta *sta)3500{3501 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);3502 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);3503 unsigned int link_id;3504 3505 /*3506 * This is called before mac80211 does RCU synchronisation,3507 * so here we already invalidate our internal RCU-protected3508 * station pointer. The rest of the code will thus no longer3509 * be able to find the station this way, and we don't rely3510 * on further RCU synchronisation after the sta_state()3511 * callback deleted the station.3512 * Since there's mvm->mutex here, no need to have RCU lock for3513 * mvm_sta->link access.3514 */3515 guard(mvm)(mvm);3516 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) {3517 struct iwl_mvm_link_sta *link_sta;3518 u32 sta_id;3519 3520 if (!mvm_sta->link[link_id])3521 continue;3522 3523 link_sta = rcu_dereference_protected(mvm_sta->link[link_id],3524 lockdep_is_held(&mvm->mutex));3525 sta_id = link_sta->sta_id;3526 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) {3527 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id],3528 ERR_PTR(-ENOENT));3529 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL);3530 }3531 }3532}3533 3534static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,3535 const u8 *bssid)3536{3537 int i;3538 3539 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {3540 struct iwl_mvm_tcm_mac *mdata;3541 3542 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id];3543 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate);3544 mdata->opened_rx_ba_sessions = false;3545 }3546 3547 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))3548 return;3549 3550 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) {3551 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;3552 return;3553 }3554 3555 if (!vif->p2p &&3556 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {3557 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;3558 return;3559 }3560 3561 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) {3562 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) {3563 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;3564 return;3565 }3566 }3567 3568 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;3569}3570 3571static void3572iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,3573 struct ieee80211_vif *vif, u8 *peer_addr,3574 enum nl80211_tdls_operation action)3575{3576 struct iwl_fw_dbg_trigger_tlv *trig;3577 struct iwl_fw_dbg_trigger_tdls *tdls_trig;3578 3579 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),3580 FW_DBG_TRIGGER_TDLS);3581 if (!trig)3582 return;3583 3584 tdls_trig = (void *)trig->data;3585 3586 if (!(tdls_trig->action_bitmap & BIT(action)))3587 return;3588 3589 if (tdls_trig->peer_mode &&3590 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)3591 return;3592 3593 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,3594 "TDLS event occurred, peer %pM, action %d",3595 peer_addr, action);3596}3597 3598struct iwl_mvm_he_obss_narrow_bw_ru_data {3599 bool tolerated;3600};3601 3602static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy,3603 struct cfg80211_bss *bss,3604 void *_data)3605{3606 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data;3607 const struct cfg80211_bss_ies *ies;3608 const struct element *elem;3609 3610 rcu_read_lock();3611 ies = rcu_dereference(bss->ies);3612 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data,3613 ies->len);3614 3615 if (!elem || elem->datalen < 10 ||3616 !(elem->data[10] &3617 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) {3618 data->tolerated = false;3619 }3620 rcu_read_unlock();3621}3622 3623static void3624iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw,3625 struct ieee80211_vif *vif,3626 unsigned int link_id,3627 struct ieee80211_bss_conf *link_conf)3628{3629 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);3630 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = {3631 .tolerated = true,3632 };3633 3634 if (WARN_ON_ONCE(!link_conf->chanreq.oper.chan ||3635 !mvmvif->link[link_id]))3636 return;3637 3638 if (!(link_conf->chanreq.oper.chan->flags & IEEE80211_CHAN_RADAR)) {3639 mvmvif->link[link_id]->he_ru_2mhz_block = false;3640 return;3641 }3642 3643 cfg80211_bss_iter(hw->wiphy, &link_conf->chanreq.oper,3644 iwl_mvm_check_he_obss_narrow_bw_ru_iter,3645 &iter_data);3646 3647 /*3648 * If there is at least one AP on radar channel that cannot3649 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU.3650 */3651 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated;3652}3653 3654static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm,3655 struct ieee80211_vif *vif)3656{3657 struct ieee80211_supported_band *sband;3658 const struct ieee80211_sta_he_cap *he_cap;3659 3660 if (vif->type != NL80211_IFTYPE_STATION)3661 return;3662 3663 if (!mvm->cca_40mhz_workaround)3664 return;3665 3666 /* decrement and check that we reached zero */3667 mvm->cca_40mhz_workaround--;3668 if (mvm->cca_40mhz_workaround)3669 return;3670 3671 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];3672 3673 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;3674 3675 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif);3676 3677 if (he_cap) {3678 /* we know that ours is writable */3679 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap;3680 3681 he->he_cap_elem.phy_cap_info[0] |=3682 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;3683 }3684}3685 3686static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm,3687 struct ieee80211_vif *vif,3688 struct iwl_mvm_sta *mvm_sta)3689{3690#if IS_ENABLED(CONFIG_IWLMEI)3691 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);3692 struct iwl_mei_conn_info conn_info = {3693 .ssid_len = vif->cfg.ssid_len,3694 };3695 3696 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))3697 return;3698 3699 if (!mvm->mei_registered)3700 return;3701 3702 /* FIXME: MEI needs to be updated for MLO */3703 if (!vif->bss_conf.chanreq.oper.chan)3704 return;3705 3706 conn_info.channel = vif->bss_conf.chanreq.oper.chan->hw_value;3707 3708 switch (mvm_sta->pairwise_cipher) {3709 case WLAN_CIPHER_SUITE_TKIP:3710 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP;3711 break;3712 case WLAN_CIPHER_SUITE_CCMP:3713 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP;3714 break;3715 case WLAN_CIPHER_SUITE_GCMP:3716 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP;3717 break;3718 case WLAN_CIPHER_SUITE_GCMP_256:3719 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256;3720 break;3721 case 0:3722 /* open profile */3723 break;3724 default:3725 /* cipher not supported, don't send anything to iwlmei */3726 return;3727 }3728 3729 switch (mvmvif->rekey_data.akm) {3730 case WLAN_AKM_SUITE_SAE & 0xff:3731 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE;3732 break;3733 case WLAN_AKM_SUITE_PSK & 0xff:3734 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK;3735 break;3736 case WLAN_AKM_SUITE_8021X & 0xff:3737 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA;3738 break;3739 case 0:3740 /* open profile */3741 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN;3742 break;3743 default:3744 /* auth method / AKM not supported */3745 /* TODO: All the FT vesions of these? */3746 return;3747 }3748 3749 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len);3750 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN);3751 3752 /* TODO: add support for collocated AP data */3753 iwl_mei_host_associated(&conn_info, NULL);3754#endif3755}3756 3757static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm,3758 struct ieee80211_vif *vif,3759 bool force_assoc_off)3760{3761 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL);3762}3763 3764static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,3765 struct ieee80211_vif *vif,3766 struct ieee80211_sta *sta,3767 enum ieee80211_sta_state old_state,3768 enum ieee80211_sta_state new_state)3769{3770 static const struct iwl_mvm_sta_state_ops callbacks = {3771 .add_sta = iwl_mvm_add_sta,3772 .update_sta = iwl_mvm_update_sta,3773 .rm_sta = iwl_mvm_rm_sta,3774 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper,3775 };3776 3777 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state,3778 &callbacks);3779}3780 3781/* FIXME: temporary making two assumptions in all sta handling functions:3782 * (1) when setting sta state, the link exists and protected3783 * (2) if a link is valid in sta then it's valid in vif (can3784 * use same index in the link array)3785 */3786static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm,3787 struct ieee80211_vif *vif,3788 struct ieee80211_sta *sta)3789{3790 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);3791 unsigned int link_id;3792 3793 for_each_mvm_vif_valid_link(mvmvif, link_id) {3794 struct ieee80211_bss_conf *conf =3795 link_conf_dereference_check(vif, link_id);3796 struct ieee80211_link_sta *link_sta =3797 link_sta_dereference_check(sta, link_id);3798 3799 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt)3800 continue;3801 3802 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta,3803 mvmvif->link[link_id]->phy_ctxt->channel->band);3804 }3805}3806 3807static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm,3808 struct ieee80211_vif *vif,3809 struct ieee80211_sta *sta)3810{3811 struct ieee80211_link_sta *link_sta;3812 unsigned int link_id;3813 3814 /* Beacon interval check - firmware will crash if the beacon3815 * interval is less than 16. We can't avoid connecting at all,3816 * so refuse the station state change, this will cause mac802113817 * to abandon attempts to connect to this AP, and eventually3818 * wpa_s will blocklist the AP...3819 */3820 3821 for_each_sta_active_link(vif, sta, link_sta, link_id) {3822 struct ieee80211_bss_conf *link_conf =3823 link_conf_dereference_protected(vif, link_id);3824 3825 if (!link_conf)3826 continue;3827 3828 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) {3829 IWL_ERR(mvm,3830 "Beacon interval %d for AP %pM is too small\n",3831 link_conf->beacon_int, link_sta->addr);3832 return false;3833 }3834 3835 link_conf->he_support = link_sta->he_cap.has_he;3836 }3837 3838 return true;3839}3840 3841static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw,3842 struct ieee80211_vif *vif,3843 struct ieee80211_sta *sta,3844 bool is_sta)3845{3846 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);3847 struct ieee80211_link_sta *link_sta;3848 unsigned int link_id;3849 3850 for_each_sta_active_link(vif, sta, link_sta, link_id) {3851 struct ieee80211_bss_conf *link_conf =3852 link_conf_dereference_protected(vif, link_id);3853 3854 if (!link_conf || !mvmvif->link[link_id])3855 continue;3856 3857 link_conf->he_support = link_sta->he_cap.has_he;3858 3859 if (is_sta) {3860 mvmvif->link[link_id]->he_ru_2mhz_block = false;3861 if (link_sta->he_cap.has_he)3862 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif,3863 link_id,3864 link_conf);3865 }3866 }3867}3868 3869static int3870iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm,3871 struct ieee80211_vif *vif,3872 struct ieee80211_sta *sta,3873 const struct iwl_mvm_sta_state_ops *callbacks)3874{3875 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);3876 struct ieee80211_link_sta *link_sta;3877 unsigned int i;3878 int ret;3879 3880 lockdep_assert_held(&mvm->mutex);3881 3882 if (vif->type == NL80211_IFTYPE_STATION &&3883 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta))3884 return -EINVAL;3885 3886 if (sta->tdls &&3887 (vif->p2p ||3888 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT ||3889 iwl_mvm_phy_ctx_count(mvm) > 1)) {3890 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");3891 return -EBUSY;3892 }3893 3894 ret = callbacks->add_sta(mvm, vif, sta);3895 if (sta->tdls && ret == 0) {3896 iwl_mvm_recalc_tdls_state(mvm, vif, true);3897 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,3898 NL80211_TDLS_SETUP);3899 }3900 3901 if (ret)3902 return ret;3903 3904 for_each_sta_active_link(vif, sta, link_sta, i)3905 link_sta->agg.max_rc_amsdu_len = 1;3906 3907 ieee80211_sta_recalc_aggregates(sta);3908 3909 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)3910 mvmvif->ap_sta = sta;3911 3912 /*3913 * Initialize the rates here already - this really tells3914 * the firmware only what the supported legacy rates are3915 * (may be) since it's initialized already from what the3916 * AP advertised in the beacon/probe response. This will3917 * allow the firmware to send auth/assoc frames with one3918 * of the supported rates already, rather than having to3919 * use a mandatory rate.3920 * If we're the AP, we'll just assume mandatory rates at3921 * this point, but we know nothing about the STA anyway.3922 */3923 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);3924 3925 return 0;3926}3927 3928static int3929iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw,3930 struct iwl_mvm *mvm,3931 struct ieee80211_vif *vif,3932 struct ieee80211_sta *sta,3933 const struct iwl_mvm_sta_state_ops *callbacks)3934{3935 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);3936 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);3937 struct ieee80211_link_sta *link_sta;3938 unsigned int link_id;3939 3940 lockdep_assert_held(&mvm->mutex);3941 3942 if (vif->type == NL80211_IFTYPE_AP) {3943 iwl_mvm_vif_set_he_support(hw, vif, sta, false);3944 mvmvif->ap_assoc_sta_count++;3945 callbacks->mac_ctxt_changed(mvm, vif, false);3946 3947 /* since the below is not for MLD API, it's ok to use3948 * the default bss_conf3949 */3950 if (!mvm->mld_api_is_used &&3951 (vif->bss_conf.he_support &&3952 !iwlwifi_mod_params.disable_11ax))3953 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id);3954 } else if (vif->type == NL80211_IFTYPE_STATION) {3955 iwl_mvm_vif_set_he_support(hw, vif, sta, true);3956 3957 callbacks->mac_ctxt_changed(mvm, vif, false);3958 3959 if (!mvm->mld_api_is_used)3960 goto out;3961 3962 for_each_sta_active_link(vif, sta, link_sta, link_id) {3963 struct ieee80211_bss_conf *link_conf =3964 link_conf_dereference_protected(vif, link_id);3965 3966 if (WARN_ON(!link_conf))3967 return -EINVAL;3968 if (!mvmvif->link[link_id])3969 continue;3970 3971 iwl_mvm_link_changed(mvm, vif, link_conf,3972 LINK_CONTEXT_MODIFY_ALL &3973 ~LINK_CONTEXT_MODIFY_ACTIVE,3974 true);3975 }3976 }3977 3978out:3979 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);3980 3981 return callbacks->update_sta(mvm, vif, sta);3982}3983 3984static int3985iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm,3986 struct ieee80211_vif *vif,3987 struct ieee80211_sta *sta,3988 const struct iwl_mvm_sta_state_ops *callbacks)3989{3990 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);3991 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);3992 3993 lockdep_assert_held(&mvm->mutex);3994 3995 /* we don't support TDLS during DCM */3996 if (iwl_mvm_phy_ctx_count(mvm) > 1)3997 iwl_mvm_teardown_tdls_peers(mvm);3998 3999 if (sta->tdls) {4000 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,4001 NL80211_TDLS_ENABLE_LINK);4002 } else {4003 /* enable beacon filtering */4004 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif));4005 4006 mvmvif->authorized = 1;4007 4008 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {4009 mvmvif->link_selection_res = vif->active_links;4010 mvmvif->link_selection_primary =4011 vif->active_links ? __ffs(vif->active_links) : 0;4012 }4013 4014 callbacks->mac_ctxt_changed(mvm, vif, false);4015 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta);4016 4017 memset(&mvmvif->last_esr_exit, 0,4018 sizeof(mvmvif->last_esr_exit));4019 4020 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT, 0);4021 4022 /* Block until FW notif will arrive */4023 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_FW, 0);4024 4025 /* when client is authorized (AP station marked as such),4026 * try to enable the best link(s).4027 */4028 if (vif->type == NL80211_IFTYPE_STATION &&4029 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))4030 iwl_mvm_select_links(mvm, vif);4031 }4032 4033 mvm_sta->authorized = true;4034 4035 /* MFP is set by default before the station is authorized.4036 * Clear it here in case it's not used.4037 */4038 if (!sta->mfp) {4039 int ret = callbacks->update_sta(mvm, vif, sta);4040 4041 if (ret)4042 return ret;4043 }4044 4045 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);4046 4047 return 0;4048}4049 4050static int4051iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm,4052 struct ieee80211_vif *vif,4053 struct ieee80211_sta *sta,4054 const struct iwl_mvm_sta_state_ops *callbacks)4055{4056 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);4057 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);4058 4059 lockdep_assert_held(&mvm->mutex);4060 4061 mvmsta->authorized = false;4062 4063 /* once we move into assoc state, need to update rate scale to4064 * disable using wide bandwidth4065 */4066 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);4067 4068 if (!sta->tdls) {4069 /* Set this but don't call iwl_mvm_mac_ctxt_changed()4070 * yet to avoid sending high prio again for a little4071 * time.4072 */4073 mvmvif->authorized = 0;4074 mvmvif->link_selection_res = 0;4075 4076 /* disable beacon filtering */4077 iwl_mvm_disable_beacon_filter(mvm, vif);4078 4079 wiphy_delayed_work_cancel(mvm->hw->wiphy,4080 &mvmvif->prevent_esr_done_wk);4081 4082 wiphy_delayed_work_cancel(mvm->hw->wiphy,4083 &mvmvif->mlo_int_scan_wk);4084 4085 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk);4086 4087 /* No need for the periodic statistics anymore */4088 if (ieee80211_vif_is_mld(vif) && mvmvif->esr_active)4089 iwl_mvm_request_periodic_system_statistics(mvm, false);4090 }4091 4092 return 0;4093}4094 4095/* Common part for MLD and non-MLD modes */4096int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw,4097 struct ieee80211_vif *vif,4098 struct ieee80211_sta *sta,4099 enum ieee80211_sta_state old_state,4100 enum ieee80211_sta_state new_state,4101 const struct iwl_mvm_sta_state_ops *callbacks)4102{4103 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);4104 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);4105 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);4106 struct ieee80211_link_sta *link_sta;4107 unsigned int link_id;4108 int ret;4109 4110 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",4111 sta->addr, old_state, new_state);4112 4113 /*4114 * If we are in a STA removal flow and in DQA mode:4115 *4116 * This is after the sync_rcu part, so the queues have already been4117 * flushed. No more TXs on their way in mac80211's path, and no more in4118 * the queues.4119 * Also, we won't be getting any new TX frames for this station.4120 * What we might have are deferred TX frames that need to be taken care4121 * of.4122 *4123 * Drop any still-queued deferred-frame before removing the STA, and4124 * make sure the worker is no longer handling frames for this STA.4125 */4126 if (old_state == IEEE80211_STA_NONE &&4127 new_state == IEEE80211_STA_NOTEXIST) {4128 flush_work(&mvm->add_stream_wk);4129 4130 /*4131 * No need to make sure deferred TX indication is off since the4132 * worker will already remove it if it was on4133 */4134 4135 /*4136 * Additionally, reset the 40 MHz capability if we disconnected4137 * from the AP now.4138 */4139 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif);4140 4141 /* Also free dup data just in case any assertions below fail */4142 kfree(mvm_sta->dup_data);4143 }4144 4145 mutex_lock(&mvm->mutex);4146 4147 /* this would be a mac80211 bug ... but don't crash, unless we had a4148 * firmware crash while we were activating a link, in which case it is4149 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in4150 * recovery flow since we spit tons of error messages anyway.4151 */4152 for_each_sta_active_link(vif, sta, link_sta, link_id) {4153 if (WARN_ON_ONCE(!mvmvif->link[link_id] ||4154 !mvmvif->link[link_id]->phy_ctxt)) {4155 mutex_unlock(&mvm->mutex);4156 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,4157 &mvm->status) ? 0 : -EINVAL;4158 }4159 }4160 4161 /* track whether or not the station is associated */4162 mvm_sta->sta_state = new_state;4163 4164 if (old_state == IEEE80211_STA_NOTEXIST &&4165 new_state == IEEE80211_STA_NONE) {4166 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta,4167 callbacks);4168 if (ret < 0)4169 goto out_unlock;4170 } else if (old_state == IEEE80211_STA_NONE &&4171 new_state == IEEE80211_STA_AUTH) {4172 /*4173 * EBS may be disabled due to previous failures reported by FW.4174 * Reset EBS status here assuming environment has been changed.4175 */4176 mvm->last_ebs_successful = true;4177 iwl_mvm_check_uapsd(mvm, vif, sta->addr);4178 ret = 0;4179 } else if (old_state == IEEE80211_STA_AUTH &&4180 new_state == IEEE80211_STA_ASSOC) {4181 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta,4182 callbacks);4183 } else if (old_state == IEEE80211_STA_ASSOC &&4184 new_state == IEEE80211_STA_AUTHORIZED) {4185 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta,4186 callbacks);4187 } else if (old_state == IEEE80211_STA_AUTHORIZED &&4188 new_state == IEEE80211_STA_ASSOC) {4189 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta,4190 callbacks);4191 } else if (old_state == IEEE80211_STA_ASSOC &&4192 new_state == IEEE80211_STA_AUTH) {4193 if (vif->type == NL80211_IFTYPE_AP) {4194 mvmvif->ap_assoc_sta_count--;4195 callbacks->mac_ctxt_changed(mvm, vif, false);4196 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)4197 iwl_mvm_stop_session_protection(mvm, vif);4198 ret = 0;4199 } else if (old_state == IEEE80211_STA_AUTH &&4200 new_state == IEEE80211_STA_NONE) {4201 ret = 0;4202 } else if (old_state == IEEE80211_STA_NONE &&4203 new_state == IEEE80211_STA_NOTEXIST) {4204 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) {4205 iwl_mvm_stop_session_protection(mvm, vif);4206 mvmvif->ap_sta = NULL;4207 }4208 ret = callbacks->rm_sta(mvm, vif, sta);4209 if (sta->tdls) {4210 iwl_mvm_recalc_tdls_state(mvm, vif, false);4211 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,4212 NL80211_TDLS_DISABLE_LINK);4213 }4214 4215 if (unlikely(ret &&4216 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,4217 &mvm->status)))4218 ret = 0;4219 } else {4220 ret = -EIO;4221 }4222 out_unlock:4223 mutex_unlock(&mvm->mutex);4224 4225 if (sta->tdls && ret == 0) {4226 if (old_state == IEEE80211_STA_NOTEXIST &&4227 new_state == IEEE80211_STA_NONE)4228 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);4229 else if (old_state == IEEE80211_STA_NONE &&4230 new_state == IEEE80211_STA_NOTEXIST)4231 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);4232 }4233 4234 return ret;4235}4236 4237int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)4238{4239 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);4240 4241 mvm->rts_threshold = value;4242 4243 return 0;4244}4245 4246void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif,4247 struct ieee80211_sta *sta, u32 changed)4248{4249 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);4250 4251 if (changed & (IEEE80211_RC_BW_CHANGED |4252 IEEE80211_RC_SUPP_RATES_CHANGED |4253 IEEE80211_RC_NSS_CHANGED))4254 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);4255 4256 if (vif->type == NL80211_IFTYPE_STATION &&4257 changed & IEEE80211_RC_NSS_CHANGED)4258 iwl_mvm_sf_update(mvm, vif, false);4259}4260 4261static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,4262 struct ieee80211_vif *vif,4263 unsigned int link_id, u16 ac,4264 const struct ieee80211_tx_queue_params *params)4265{4266 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);4267 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);4268 4269 mvmvif->deflink.queue_params[ac] = *params;4270 4271 /*4272 * No need to update right away, we'll get BSS_CHANGED_QOS4273 * The exception is P2P_DEVICE interface which needs immediate update.4274 */4275 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {4276 guard(mvm)(mvm);4277 return iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);4278 }4279 return 0;4280}4281 4282void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,4283 struct ieee80211_vif *vif,4284 struct ieee80211_prep_tx_info *info)4285{4286 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);4287 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);4288 4289 if (info->was_assoc && !mvmvif->session_prot_connection_loss)4290 return;4291 4292 guard(mvm)(mvm);4293 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id);4294}4295 4296void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw,4297 struct ieee80211_vif *vif,4298 struct ieee80211_prep_tx_info *info)4299{4300 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);4301 4302 /* for successful cases (auth/assoc), don't cancel session protection */4303 if (info->success)4304 return;4305 4306 guard(mvm)(mvm);4307 iwl_mvm_stop_session_protection(mvm, vif);4308}4309 4310int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,4311 struct ieee80211_vif *vif,4312 struct cfg80211_sched_scan_request *req,4313 struct ieee80211_scan_ies *ies)4314{4315 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);4316 4317 guard(mvm)(mvm);4318 4319 if (!vif->cfg.idle)4320 return -EBUSY;4321 4322 return iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);4323}4324 4325int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,4326 struct ieee80211_vif *vif)4327{4328 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);4329 int ret;4330 4331 mutex_lock(&mvm->mutex);4332 4333 /* Due to a race condition, it's possible that mac80211 asks4334 * us to stop a sched_scan when it's already stopped. This4335 * can happen, for instance, if we stopped the scan ourselves,4336 * called ieee80211_sched_scan_stopped() and the userspace called4337 * stop sched scan scan before ieee80211_sched_scan_stopped_work()4338 * could run. To handle this, simply return if the scan is4339 * not running.4340 */4341 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {4342 mutex_unlock(&mvm->mutex);4343 return 0;4344 }4345 4346 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);4347 mutex_unlock(&mvm->mutex);4348 iwl_mvm_wait_for_async_handlers(mvm);4349 4350 return ret;4351}4352 4353static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw,4354 enum set_key_cmd cmd,4355 struct ieee80211_vif *vif,4356 struct ieee80211_sta *sta,4357 struct ieee80211_key_conf *key)4358{4359 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);4360 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);4361 struct iwl_mvm_sta *mvmsta = NULL;4362 struct iwl_mvm_key_pn *ptk_pn = NULL;4363 int keyidx = key->keyidx;4364 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD);4365 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0);4366 int ret, i;4367 u8 key_offset;4368 4369 if (sta)4370 mvmsta = iwl_mvm_sta_from_mac80211(sta);4371 4372 switch (key->cipher) {4373 case WLAN_CIPHER_SUITE_TKIP:4374 if (!mvm->trans->trans_cfg->gen2) {4375 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;4376 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;4377 } else if (vif->type == NL80211_IFTYPE_STATION) {4378 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE;4379 } else {4380 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n");4381 return -EOPNOTSUPP;4382 }4383 break;4384 case WLAN_CIPHER_SUITE_CCMP:4385 case WLAN_CIPHER_SUITE_GCMP:4386 case WLAN_CIPHER_SUITE_GCMP_256:4387 if (!iwl_mvm_has_new_tx_api(mvm))4388 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;4389 break;4390 case WLAN_CIPHER_SUITE_AES_CMAC:4391 case WLAN_CIPHER_SUITE_BIP_GMAC_128:4392 case WLAN_CIPHER_SUITE_BIP_GMAC_256:4393 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));4394 break;4395 case WLAN_CIPHER_SUITE_WEP40:4396 case WLAN_CIPHER_SUITE_WEP104:4397 if (vif->type == NL80211_IFTYPE_STATION)4398 break;4399 if (iwl_mvm_has_new_tx_api(mvm))4400 return -EOPNOTSUPP;4401 /* support HW crypto on TX */4402 return 0;4403 default:4404 return -EOPNOTSUPP;4405 }4406 4407 switch (cmd) {4408 case SET_KEY:4409 if (vif->type == NL80211_IFTYPE_STATION &&4410 (keyidx == 6 || keyidx == 7))4411 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6],4412 key);4413 4414 if ((vif->type == NL80211_IFTYPE_ADHOC ||4415 vif->type == NL80211_IFTYPE_AP) && !sta) {4416 /*4417 * GTK on AP interface is a TX-only key, return 0;4418 * on IBSS they're per-station and because we're lazy4419 * we don't support them for RX, so do the same.4420 * CMAC/GMAC in AP/IBSS modes must be done in software4421 * on older NICs.4422 *4423 * Except, of course, beacon protection - it must be4424 * offloaded since we just set a beacon template, and4425 * then we must also offload the IGTK (not just BIGTK)4426 * for firmware reasons.4427 *4428 * So just check for beacon protection - if we don't4429 * have it we cannot get here with keyidx >= 6, and4430 * if we do have it we need to send the key to FW in4431 * all cases (CMAC/GMAC).4432 */4433 if (!wiphy_ext_feature_isset(hw->wiphy,4434 NL80211_EXT_FEATURE_BEACON_PROTECTION) &&4435 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||4436 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||4437 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) {4438 ret = -EOPNOTSUPP;4439 break;4440 }4441 4442 if (key->cipher != WLAN_CIPHER_SUITE_GCMP &&4443 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 &&4444 !iwl_mvm_has_new_tx_api(mvm)) {4445 key->hw_key_idx = STA_KEY_IDX_INVALID;4446 ret = 0;4447 break;4448 }4449 4450 if (!mvmvif->ap_ibss_active) {4451 for (i = 0;4452 i < ARRAY_SIZE(mvmvif->ap_early_keys);4453 i++) {4454 if (!mvmvif->ap_early_keys[i]) {4455 mvmvif->ap_early_keys[i] = key;4456 break;4457 }4458 }4459 4460 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys))4461 ret = -ENOSPC;4462 else4463 ret = 0;4464 4465 break;4466 }4467 }4468 4469 /* During FW restart, in order to restore the state as it was,4470 * don't try to reprogram keys we previously failed for.4471 */4472 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&4473 key->hw_key_idx == STA_KEY_IDX_INVALID) {4474 IWL_DEBUG_MAC80211(mvm,4475 "skip invalid idx key programming during restart\n");4476 ret = 0;4477 break;4478 }4479 4480 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&4481 mvmsta && iwl_mvm_has_new_rx_api(mvm) &&4482 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&4483 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||4484 key->cipher == WLAN_CIPHER_SUITE_GCMP ||4485 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {4486 struct ieee80211_key_seq seq;4487 int tid, q;4488 4489 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));4490 ptk_pn = kzalloc(struct_size(ptk_pn, q,4491 mvm->trans->num_rx_queues),4492 GFP_KERNEL);4493 if (!ptk_pn) {4494 ret = -ENOMEM;4495 break;4496 }4497 4498 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {4499 ieee80211_get_key_rx_seq(key, tid, &seq);4500 for (q = 0; q < mvm->trans->num_rx_queues; q++)4501 memcpy(ptk_pn->q[q].pn[tid],4502 seq.ccmp.pn,4503 IEEE80211_CCMP_PN_LEN);4504 }4505 4506 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);4507 }4508 4509 /* in HW restart reuse the index, otherwise request a new one */4510 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))4511 key_offset = key->hw_key_idx;4512 else4513 key_offset = STA_KEY_IDX_INVALID;4514 4515 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE)4516 mvmsta->pairwise_cipher = key->cipher;4517 4518 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n",4519 sta ? sta->addr : NULL, key->keyidx);4520 4521 if (sec_key_ver)4522 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key);4523 else4524 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);4525 4526 if (ret) {4527 IWL_WARN(mvm, "set key failed\n");4528 key->hw_key_idx = STA_KEY_IDX_INVALID;4529 if (ptk_pn) {4530 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);4531 kfree(ptk_pn);4532 }4533 /*4534 * can't add key for RX, but we don't need it4535 * in the device for TX so still return 0,4536 * unless we have new TX API where we cannot4537 * put key material into the TX_CMD4538 */4539 if (iwl_mvm_has_new_tx_api(mvm))4540 ret = -EOPNOTSUPP;4541 else4542 ret = 0;4543 }4544 4545 break;4546 case DISABLE_KEY:4547 if (vif->type == NL80211_IFTYPE_STATION &&4548 (keyidx == 6 || keyidx == 7))4549 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6],4550 NULL);4551 4552 ret = -ENOENT;4553 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {4554 if (mvmvif->ap_early_keys[i] == key) {4555 mvmvif->ap_early_keys[i] = NULL;4556 ret = 0;4557 }4558 }4559 4560 /* found in pending list - don't do anything else */4561 if (ret == 0)4562 break;4563 4564 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {4565 ret = 0;4566 break;4567 }4568 4569 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) &&4570 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&4571 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||4572 key->cipher == WLAN_CIPHER_SUITE_GCMP ||4573 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {4574 ptk_pn = rcu_dereference_protected(4575 mvmsta->ptk_pn[keyidx],4576 lockdep_is_held(&mvm->mutex));4577 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);4578 if (ptk_pn)4579 kfree_rcu(ptk_pn, rcu_head);4580 }4581 4582 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");4583 if (sec_key_ver)4584 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key);4585 else4586 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);4587 break;4588 default:4589 ret = -EINVAL;4590 }4591 4592 return ret;4593}4594 4595int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,4596 struct ieee80211_vif *vif, struct ieee80211_sta *sta,4597 struct ieee80211_key_conf *key)4598{4599 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);4600 4601 guard(mvm)(mvm);4602 return __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key);4603}4604 4605void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,4606 struct ieee80211_vif *vif,4607 struct ieee80211_key_conf *keyconf,4608 struct ieee80211_sta *sta,4609 u32 iv32, u16 *phase1key)4610{4611 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);4612 4613 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)4614 return;4615 4616 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);4617}4618 4619 4620static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,4621 struct iwl_rx_packet *pkt, void *data)4622{4623 struct iwl_mvm *mvm =4624 container_of(notif_wait, struct iwl_mvm, notif_wait);4625 struct iwl_hs20_roc_res *resp;4626 int resp_len = iwl_rx_packet_payload_len(pkt);4627 struct iwl_mvm_time_event_data *te_data = data;4628 4629 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))4630 return true;4631 4632 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {4633 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");4634 return true;4635 }4636 4637 resp = (void *)pkt->data;4638 4639 IWL_DEBUG_TE(mvm,4640 "Aux ROC: Received response from ucode: status=%d uid=%d\n",4641 resp->status, resp->event_unique_id);4642 4643 te_data->uid = le32_to_cpu(resp->event_unique_id);4644 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",4645 te_data->uid);4646 4647 spin_lock_bh(&mvm->time_event_lock);4648 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);4649 spin_unlock_bh(&mvm->time_event_lock);4650 4651 return true;4652}4653 4654static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,4655 struct ieee80211_channel *channel,4656 struct ieee80211_vif *vif,4657 int duration)4658{4659 int res;4660 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);4661 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;4662 static const u16 time_event_response[] = { HOT_SPOT_CMD };4663 struct iwl_notification_wait wait_time_event;4664 u32 req_dur, delay;4665 struct iwl_hs20_roc_req aux_roc_req = {4666 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),4667 .id_and_color =4668 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),4669 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),4670 };4671 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm,4672 &aux_roc_req.channel_info);4673 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm);4674 4675 /* Set the channel info data */4676 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value,4677 iwl_mvm_phy_band_from_nl80211(channel->band),4678 IWL_PHY_CHANNEL_MODE20,4679 0);4680 4681 /* Set the time and duration */4682 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm));4683 4684 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay);4685 tail->duration = cpu_to_le32(req_dur);4686 tail->apply_time_max_delay = cpu_to_le32(delay);4687 4688 IWL_DEBUG_TE(mvm,4689 "ROC: Requesting to remain on channel %u for %ums\n",4690 channel->hw_value, req_dur);4691 IWL_DEBUG_TE(mvm,4692 "\t(requested = %ums, max_delay = %ums)\n",4693 duration, delay);4694 4695 /* Set the node address */4696 memcpy(tail->node_addr, vif->addr, ETH_ALEN);4697 4698 lockdep_assert_held(&mvm->mutex);4699 4700 spin_lock_bh(&mvm->time_event_lock);4701 4702 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {4703 spin_unlock_bh(&mvm->time_event_lock);4704 return -EIO;4705 }4706 4707 te_data->vif = vif;4708 te_data->duration = duration;4709 te_data->id = HOT_SPOT_CMD;4710 4711 spin_unlock_bh(&mvm->time_event_lock);4712 4713 /*4714 * Use a notification wait, which really just processes the4715 * command response and doesn't wait for anything, in order4716 * to be able to process the response and get the UID inside4717 * the RX path. Using CMD_WANT_SKB doesn't work because it4718 * stores the buffer and then wakes up this thread, by which4719 * time another notification (that the time event started)4720 * might already be processed unsuccessfully.4721 */4722 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,4723 time_event_response,4724 ARRAY_SIZE(time_event_response),4725 iwl_mvm_rx_aux_roc, te_data);4726 4727 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len,4728 &aux_roc_req);4729 4730 if (res) {4731 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);4732 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);4733 goto out_clear_te;4734 }4735 4736 /* No need to wait for anything, so just pass 1 (0 isn't valid) */4737 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);4738 /* should never fail */4739 WARN_ON_ONCE(res);4740 4741 if (res) {4742 out_clear_te:4743 spin_lock_bh(&mvm->time_event_lock);4744 iwl_mvm_te_clear_data(mvm, te_data);4745 spin_unlock_bh(&mvm->time_event_lock);4746 }4747 4748 return res;4749}4750 4751static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id)4752{4753 int ret = 0;4754 4755 lockdep_assert_held(&mvm->mutex);4756 4757 if (!fw_has_capa(&mvm->fw->ucode_capa,4758 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {4759 IWL_ERR(mvm, "hotspot not supported\n");4760 return -EINVAL;4761 }4762 4763 if (iwl_mvm_has_new_station_api(mvm->fw)) {4764 ret = iwl_mvm_add_aux_sta(mvm, lmac_id);4765 WARN(ret, "Failed to allocate aux station");4766 }4767 4768 return ret;4769}4770 4771static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif)4772{4773 int ret;4774 4775 lockdep_assert_held(&mvm->mutex);4776 4777 ret = iwl_mvm_binding_add_vif(mvm, vif);4778 if (WARN(ret, "Failed binding P2P_DEVICE\n"))4779 return ret;4780 4781 /* The station and queue allocation must be done only after the binding4782 * is done, as otherwise the FW might incorrectly configure its state.4783 */4784 return iwl_mvm_add_p2p_bcast_sta(mvm, vif);4785}4786 4787static int iwl_mvm_roc(struct ieee80211_hw *hw,4788 struct ieee80211_vif *vif,4789 struct ieee80211_channel *channel,4790 int duration,4791 enum ieee80211_roc_type type)4792{4793 static const struct iwl_mvm_roc_ops ops = {4794 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20,4795 .link = iwl_mvm_roc_link,4796 };4797 4798 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops);4799}4800 4801static int iwl_mvm_roc_station(struct iwl_mvm *mvm,4802 struct ieee80211_channel *channel,4803 struct ieee80211_vif *vif,4804 int duration)4805{4806 int ret;4807 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD);4808 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id,4809 IWL_FW_CMD_VER_UNKNOWN);4810 4811 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) {4812 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration);4813 } else if (fw_ver >= 3) {4814 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration,4815 ROC_ACTIVITY_HOTSPOT);4816 } else {4817 ret = -EOPNOTSUPP;4818 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver);4819 }4820 4821 return ret;4822}4823 4824static int iwl_mvm_roc_p2p(struct iwl_mvm *mvm,4825 struct ieee80211_channel *channel,4826 struct ieee80211_vif *vif,4827 int duration,4828 enum ieee80211_roc_type type)4829{4830 enum iwl_roc_activity activity;4831 int ret;4832 4833 lockdep_assert_held(&mvm->mutex);4834 4835 switch (type) {4836 case IEEE80211_ROC_TYPE_NORMAL:4837 activity = ROC_ACTIVITY_P2P_DISC;4838 break;4839 case IEEE80211_ROC_TYPE_MGMT_TX:4840 activity = ROC_ACTIVITY_P2P_NEG;4841 break;4842 default:4843 WARN_ONCE(1, "Got an invalid P2P ROC type\n");4844 return -EINVAL;4845 }4846 4847 ret = iwl_mvm_mld_add_aux_sta(mvm,4848 iwl_mvm_get_lmac_id(mvm, channel->band));4849 if (ret)4850 return ret;4851 4852 return iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, activity);4853}4854 4855static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm,4856 struct ieee80211_vif *vif,4857 struct ieee80211_channel *channel)4858{4859 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);4860 struct cfg80211_chan_def chandef;4861 int i;4862 4863 lockdep_assert_held(&mvm->mutex);4864 4865 if (mvmvif->deflink.phy_ctxt &&4866 channel == mvmvif->deflink.phy_ctxt->channel)4867 return 0;4868 4869 /* Try using a PHY context that is already in use */4870 for (i = 0; i < NUM_PHY_CTX; i++) {4871 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i];4872 4873 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt)4874 continue;4875 4876 if (channel == phy_ctxt->channel) {4877 if (mvmvif->deflink.phy_ctxt)4878 iwl_mvm_phy_ctxt_unref(mvm,4879 mvmvif->deflink.phy_ctxt);4880 4881 mvmvif->deflink.phy_ctxt = phy_ctxt;4882 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt);4883 return 0;4884 }4885 }4886 4887 /* We already have a phy_ctxt, but it's not on the right channel */4888 if (mvmvif->deflink.phy_ctxt)4889 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt);4890 4891 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);4892 if (!mvmvif->deflink.phy_ctxt)4893 return -ENOSPC;4894 4895 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);4896 4897 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt,4898 &chandef, NULL, 1, 1);4899}4900 4901/* Execute the common part for MLD and non-MLD modes */4902int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif,4903 struct ieee80211_channel *channel, int duration,4904 enum ieee80211_roc_type type,4905 const struct iwl_mvm_roc_ops *ops)4906{4907 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);4908 struct ieee80211_vif *bss_vif = iwl_mvm_get_bss_vif(mvm);4909 u32 lmac_id;4910 int ret;4911 4912 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,4913 duration, type);4914 4915 /*4916 * Flush the done work, just in case it's still pending, so that4917 * the work it does can complete and we can accept new frames.4918 */4919 flush_work(&mvm->roc_done_wk);4920 4921 if (!IS_ERR_OR_NULL(bss_vif)) {4922 ret = iwl_mvm_block_esr_sync(mvm, bss_vif,4923 IWL_MVM_ESR_BLOCKED_ROC);4924 if (ret)4925 return ret;4926 }4927 4928 guard(mvm)(mvm);4929 4930 switch (vif->type) {4931 case NL80211_IFTYPE_STATION:4932 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band);4933 4934 /* Use aux roc framework (HS20) */4935 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id);4936 if (!ret)4937 ret = iwl_mvm_roc_station(mvm, channel, vif, duration);4938 return ret;4939 case NL80211_IFTYPE_P2P_DEVICE:4940 /* handle below */4941 break;4942 default:4943 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type);4944 return -EINVAL;4945 }4946 4947 if (iwl_mvm_has_p2p_over_aux(mvm)) {4948 ret = iwl_mvm_roc_p2p(mvm, channel, vif, duration, type);4949 return ret;4950 }4951 4952 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel);4953 if (ret)4954 return ret;4955 4956 ret = ops->link(mvm, vif);4957 if (ret)4958 return ret;4959 4960 return iwl_mvm_start_p2p_roc(mvm, vif, duration, type);4961}4962 4963int iwl_mvm_cancel_roc(struct ieee80211_hw *hw,4964 struct ieee80211_vif *vif)4965{4966 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);4967 4968 IWL_DEBUG_MAC80211(mvm, "enter\n");4969 4970 iwl_mvm_stop_roc(mvm, vif);4971 4972 IWL_DEBUG_MAC80211(mvm, "leave\n");4973 return 0;4974}4975 4976struct iwl_mvm_ftm_responder_iter_data {4977 bool responder;4978 struct ieee80211_chanctx_conf *ctx;4979};4980 4981static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac,4982 struct ieee80211_vif *vif)4983{4984 struct iwl_mvm_ftm_responder_iter_data *data = _data;4985 4986 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx &&4987 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params)4988 data->responder = true;4989}4990 4991bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm,4992 struct ieee80211_chanctx_conf *ctx)4993{4994 struct iwl_mvm_ftm_responder_iter_data data = {4995 .responder = false,4996 .ctx = ctx,4997 };4998 4999 ieee80211_iterate_active_interfaces_atomic(mvm->hw,5000 IEEE80211_IFACE_ITER_NORMAL,5001 iwl_mvm_ftm_responder_chanctx_iter,5002 &data);5003 return data.responder;5004}5005 5006static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,5007 struct ieee80211_chanctx_conf *ctx)5008{5009 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;5010 struct iwl_mvm_phy_ctxt *phy_ctxt;5011 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx);5012 int ret;5013 5014 lockdep_assert_held(&mvm->mutex);5015 5016 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");5017 5018 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);5019 if (!phy_ctxt) {5020 ret = -ENOSPC;5021 goto out;5022 }5023 5024 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, &ctx->ap,5025 ctx->rx_chains_static,5026 ctx->rx_chains_dynamic);5027 if (ret) {5028 IWL_ERR(mvm, "Failed to add PHY context\n");5029 goto out;5030 }5031 5032 *phy_ctxt_id = phy_ctxt->id;5033out:5034 return ret;5035}5036 5037int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,5038 struct ieee80211_chanctx_conf *ctx)5039{5040 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);5041 5042 guard(mvm)(mvm);5043 return __iwl_mvm_add_chanctx(mvm, ctx);5044}5045 5046static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,5047 struct ieee80211_chanctx_conf *ctx)5048{5049 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;5050 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];5051 5052 lockdep_assert_held(&mvm->mutex);5053 5054 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);5055}5056 5057void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,5058 struct ieee80211_chanctx_conf *ctx)5059{5060 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);5061 5062 guard(mvm)(mvm);5063 __iwl_mvm_remove_chanctx(mvm, ctx);5064}5065 5066void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,5067 struct ieee80211_chanctx_conf *ctx, u32 changed)5068{5069 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);5070 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;5071 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];5072 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx);5073 5074 if (WARN_ONCE((phy_ctxt->ref > 1) &&5075 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |5076 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |5077 IEEE80211_CHANCTX_CHANGE_RADAR |5078 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),5079 "Cannot change PHY. Ref=%d, changed=0x%X\n",5080 phy_ctxt->ref, changed))5081 return;5082 5083 guard(mvm)(mvm);5084 5085 /* we are only changing the min_width, may be a noop */5086 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) {5087 if (phy_ctxt->width == def->width)5088 return;5089 5090 /* we are just toggling between 20_NOHT and 20 */5091 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 &&5092 def->width <= NL80211_CHAN_WIDTH_20)5093 return;5094 }5095 5096 iwl_mvm_bt_coex_vif_change(mvm);5097 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, &ctx->ap,5098 ctx->rx_chains_static,5099 ctx->rx_chains_dynamic);5100}5101 5102/*5103 * This function executes the common part for MLD and non-MLD modes.5104 *5105 * Returns true if we're done assigning the chanctx5106 * (either on failure or success)5107 */5108static bool5109__iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm,5110 struct ieee80211_vif *vif,5111 struct ieee80211_chanctx_conf *ctx,5112 bool switching_chanctx, int *ret)5113{5114 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;5115 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];5116 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);5117 5118 lockdep_assert_held(&mvm->mutex);5119 5120 mvmvif->deflink.phy_ctxt = phy_ctxt;5121 5122 switch (vif->type) {5123 case NL80211_IFTYPE_AP:5124 /* only needed if we're switching chanctx (i.e. during CSA) */5125 if (switching_chanctx) {5126 mvmvif->ap_ibss_active = true;5127 break;5128 }5129 fallthrough;5130 case NL80211_IFTYPE_ADHOC:5131 /*5132 * The AP binding flow is handled as part of the start_ap flow5133 * (in bss_info_changed), similarly for IBSS.5134 */5135 *ret = 0;5136 return true;5137 case NL80211_IFTYPE_STATION:5138 break;5139 case NL80211_IFTYPE_MONITOR:5140 /* always disable PS when a monitor interface is active */5141 mvmvif->ps_disabled = true;5142 break;5143 default:5144 *ret = -EINVAL;5145 return true;5146 }5147 return false;5148}5149 5150static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,5151 struct ieee80211_vif *vif,5152 struct ieee80211_bss_conf *link_conf,5153 struct ieee80211_chanctx_conf *ctx,5154 bool switching_chanctx)5155{5156 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);5157 int ret;5158 5159 if (WARN_ON(!link_conf))5160 return -EINVAL;5161 5162 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx,5163 switching_chanctx, &ret))5164 goto out;5165 5166 ret = iwl_mvm_binding_add_vif(mvm, vif);5167 if (ret)5168 goto out;5169 5170 /*5171 * Power state must be updated before quotas,5172 * otherwise fw will complain.5173 */5174 iwl_mvm_power_update_mac(mvm);5175 5176 /* Setting the quota at this stage is only required for monitor5177 * interfaces. For the other types, the bss_info changed flow5178 * will handle quota settings.5179 */5180 if (vif->type == NL80211_IFTYPE_MONITOR) {5181 mvmvif->monitor_active = true;5182 ret = iwl_mvm_update_quotas(mvm, false, NULL);5183 if (ret)5184 goto out_remove_binding;5185 5186 ret = iwl_mvm_add_snif_sta(mvm, vif);5187 if (ret)5188 goto out_remove_binding;5189 5190 }5191 5192 /* Handle binding during CSA */5193 if (vif->type == NL80211_IFTYPE_AP) {5194 iwl_mvm_update_quotas(mvm, false, NULL);5195 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);5196 }5197 5198 if (vif->type == NL80211_IFTYPE_STATION) {5199 if (!switching_chanctx) {5200 mvmvif->csa_bcn_pending = false;5201 goto out;5202 }5203 5204 mvmvif->csa_bcn_pending = true;5205 5206 if (!fw_has_capa(&mvm->fw->ucode_capa,5207 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {5208 u32 duration = 5 * vif->bss_conf.beacon_int;5209 5210 /* Protect the session to make sure we hear the first5211 * beacon on the new channel.5212 */5213 iwl_mvm_protect_session(mvm, vif, duration, duration,5214 vif->bss_conf.beacon_int / 2,5215 true);5216 }5217 5218 iwl_mvm_update_quotas(mvm, false, NULL);5219 5220 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif,5221 link_conf,5222 false);5223 }5224 5225 goto out;5226 5227out_remove_binding:5228 iwl_mvm_binding_remove_vif(mvm, vif);5229 iwl_mvm_power_update_mac(mvm);5230out:5231 if (ret)5232 mvmvif->deflink.phy_ctxt = NULL;5233 return ret;5234}5235 5236static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,5237 struct ieee80211_vif *vif,5238 struct ieee80211_bss_conf *link_conf,5239 struct ieee80211_chanctx_conf *ctx)5240{5241 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);5242 5243 guard(mvm)(mvm);5244 return __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false);5245}5246 5247/*5248 * This function executes the common part for MLD and non-MLD modes.5249 *5250 * Returns if chanctx unassign chanctx is done5251 * (either on failure or success)5252 */5253static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm,5254 struct ieee80211_vif *vif,5255 bool switching_chanctx)5256{5257 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);5258 5259 lockdep_assert_held(&mvm->mutex);5260 iwl_mvm_remove_time_event(mvm, mvmvif,5261 &mvmvif->time_event_data);5262 5263 switch (vif->type) {5264 case NL80211_IFTYPE_ADHOC:5265 return true;5266 case NL80211_IFTYPE_MONITOR:5267 mvmvif->monitor_active = false;5268 mvmvif->ps_disabled = false;5269 break;5270 case NL80211_IFTYPE_AP:5271 /* This part is triggered only during CSA */5272 if (!switching_chanctx || !mvmvif->ap_ibss_active)5273 return true;5274 5275 mvmvif->csa_countdown = false;5276 5277 /* Set CS bit on all the stations */5278 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);5279 5280 /* Save blocked iface, the timeout is set on the next beacon */5281 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);5282 5283 mvmvif->ap_ibss_active = false;5284 break;5285 default:5286 break;5287 }5288 return false;5289}5290 5291static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,5292 struct ieee80211_vif *vif,5293 struct ieee80211_bss_conf *link_conf,5294 struct ieee80211_chanctx_conf *ctx,5295 bool switching_chanctx)5296{5297 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);5298 struct ieee80211_vif *disabled_vif = NULL;5299 5300 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx))5301 goto out;5302 5303 if (vif->type == NL80211_IFTYPE_MONITOR)5304 iwl_mvm_rm_snif_sta(mvm, vif);5305 5306 5307 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) {5308 disabled_vif = vif;5309 if (!fw_has_capa(&mvm->fw->ucode_capa,5310 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))5311 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);5312 }5313 5314 iwl_mvm_update_quotas(mvm, false, disabled_vif);5315 iwl_mvm_binding_remove_vif(mvm, vif);5316 5317out:5318 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) &&5319 switching_chanctx)5320 return;5321 mvmvif->deflink.phy_ctxt = NULL;5322 iwl_mvm_power_update_mac(mvm);5323}5324 5325static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,5326 struct ieee80211_vif *vif,5327 struct ieee80211_bss_conf *link_conf,5328 struct ieee80211_chanctx_conf *ctx)5329{5330 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);5331 5332 guard(mvm)(mvm);5333 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false);5334}5335 5336static int5337iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,5338 struct ieee80211_vif_chanctx_switch *vifs,5339 const struct iwl_mvm_switch_vif_chanctx_ops *ops)5340{5341 int ret;5342 5343 guard(mvm)(mvm);5344 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,5345 vifs[0].old_ctx, true);5346 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);5347 5348 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);5349 if (ret) {5350 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");5351 goto out_reassign;5352 }5353 5354 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,5355 vifs[0].new_ctx, true);5356 if (ret) {5357 IWL_ERR(mvm,5358 "failed to assign new_ctx during channel switch\n");5359 goto out_remove;5360 }5361 5362 /* we don't support TDLS during DCM - can be caused by channel switch */5363 if (iwl_mvm_phy_ctx_count(mvm) > 1)5364 iwl_mvm_teardown_tdls_peers(mvm);5365 5366 return 0;5367 5368out_remove:5369 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);5370 5371out_reassign:5372 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {5373 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");5374 goto out_restart;5375 }5376 5377 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,5378 vifs[0].old_ctx, true)) {5379 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");5380 goto out_restart;5381 }5382 5383 return ret;5384 5385out_restart:5386 /* things keep failing, better restart the hw */5387 iwl_mvm_nic_restart(mvm, false);5388 return ret;5389}5390 5391static int5392iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,5393 struct ieee80211_vif_chanctx_switch *vifs,5394 const struct iwl_mvm_switch_vif_chanctx_ops *ops)5395{5396 int ret;5397 5398 guard(mvm)(mvm);5399 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,5400 vifs[0].old_ctx, true);5401 5402 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,5403 vifs[0].new_ctx, true);5404 if (ret) {5405 IWL_ERR(mvm,5406 "failed to assign new_ctx during channel switch\n");5407 goto out_reassign;5408 }5409 5410 return 0;5411 5412out_reassign:5413 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,5414 vifs[0].old_ctx, true)) {5415 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");5416 goto out_restart;5417 }5418 5419 return ret;5420 5421out_restart:5422 /* things keep failing, better restart the hw */5423 iwl_mvm_nic_restart(mvm, false);5424 return ret;5425}5426 5427/* Execute the common part for both MLD and non-MLD modes */5428int5429iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw,5430 struct ieee80211_vif_chanctx_switch *vifs,5431 int n_vifs,5432 enum ieee80211_chanctx_switch_mode mode,5433 const struct iwl_mvm_switch_vif_chanctx_ops *ops)5434{5435 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);5436 int ret;5437 5438 /* we only support a single-vif right now */5439 if (n_vifs > 1)5440 return -EOPNOTSUPP;5441 5442 switch (mode) {5443 case CHANCTX_SWMODE_SWAP_CONTEXTS:5444 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops);5445 break;5446 case CHANCTX_SWMODE_REASSIGN_VIF:5447 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops);5448 break;5449 default:5450 ret = -EOPNOTSUPP;5451 break;5452 }5453 5454 return ret;5455}5456 5457static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,5458 struct ieee80211_vif_chanctx_switch *vifs,5459 int n_vifs,5460 enum ieee80211_chanctx_switch_mode mode)5461{5462 static const struct iwl_mvm_switch_vif_chanctx_ops ops = {5463 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx,5464 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx,5465 };5466 5467 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops);5468}5469 5470int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw)5471{5472 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);5473 5474 return mvm->ibss_manager;5475}5476 5477static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,5478 bool set)5479{5480 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);5481 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);5482 5483 if (!mvm_sta || !mvm_sta->vif) {5484 IWL_ERR(mvm, "Station is not associated to a vif\n");5485 return -EINVAL;5486 }5487 5488 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif,5489 &mvm_sta->vif->bss_conf);5490}5491 5492#ifdef CONFIG_NL80211_TESTMODE5493static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {5494 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },5495 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },5496 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },5497};5498 5499static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,5500 struct ieee80211_vif *vif,5501 void *data, int len)5502{5503 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];5504 int err;5505 u32 noa_duration;5506 5507 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len,5508 iwl_mvm_tm_policy, NULL);5509 if (err)5510 return err;5511 5512 if (!tb[IWL_MVM_TM_ATTR_CMD])5513 return -EINVAL;5514 5515 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {5516 case IWL_MVM_TM_CMD_SET_NOA:5517 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||5518 !vif->bss_conf.enable_beacon ||5519 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])5520 return -EINVAL;5521 5522 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);5523 if (noa_duration >= vif->bss_conf.beacon_int)5524 return -EINVAL;5525 5526 mvm->noa_duration = noa_duration;5527 mvm->noa_vif = vif;5528 5529 return iwl_mvm_update_quotas(mvm, true, NULL);5530 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:5531 /* must be associated client vif - ignore authorized */5532 if (!vif || vif->type != NL80211_IFTYPE_STATION ||5533 !vif->cfg.assoc || !vif->bss_conf.dtim_period ||5534 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])5535 return -EINVAL;5536 5537 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))5538 return iwl_mvm_enable_beacon_filter(mvm, vif);5539 return iwl_mvm_disable_beacon_filter(mvm, vif);5540 }5541 5542 return -EOPNOTSUPP;5543}5544 5545int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,5546 struct ieee80211_vif *vif,5547 void *data, int len)5548{5549 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);5550 5551 guard(mvm)(mvm);5552 return __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);5553}5554#endif5555 5556void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif,5557 struct ieee80211_channel_switch *chsw)5558{5559 /* By implementing this operation, we prevent mac80211 from5560 * starting its own channel switch timer, so that we can call5561 * ieee80211_chswitch_done() ourselves at the right time5562 * (which is when the absence time event starts).5563 */5564 5565 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),5566 "dummy channel switch op\n");5567}5568 5569static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm,5570 struct ieee80211_vif *vif,5571 struct ieee80211_channel_switch *chsw)5572{5573 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);5574 struct iwl_chan_switch_te_cmd cmd = {5575 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,5576 mvmvif->color)),5577 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),5578 .tsf = cpu_to_le32(chsw->timestamp),5579 .cs_count = chsw->count,5580 .cs_mode = chsw->block_tx,5581 };5582 5583 lockdep_assert_held(&mvm->mutex);5584 5585 if (chsw->delay)5586 cmd.cs_delayed_bcn_count =5587 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int);5588 5589 return iwl_mvm_send_cmd_pdu(mvm,5590 WIDE_ID(MAC_CONF_GROUP,5591 CHANNEL_SWITCH_TIME_EVENT_CMD),5592 0, sizeof(cmd), &cmd);5593}5594 5595static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm,5596 struct ieee80211_vif *vif,5597 struct ieee80211_channel_switch *chsw)5598{5599 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);5600 u32 apply_time;5601 5602 /* Schedule the time event to a bit before beacon 1,5603 * to make sure we're in the new channel when the5604 * GO/AP arrives. In case count <= 1 immediately schedule the5605 * TE (this might result with some packet loss or connection5606 * loss).5607 */5608 if (chsw->count <= 1)5609 apply_time = 0;5610 else5611 apply_time = chsw->device_timestamp +5612 ((vif->bss_conf.beacon_int * (chsw->count - 1) -5613 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);5614 5615 if (chsw->block_tx)5616 iwl_mvm_csa_client_absent(mvm, vif);5617 5618 if (mvmvif->bf_enabled) {5619 int ret = iwl_mvm_disable_beacon_filter(mvm, vif);5620 5621 if (ret)5622 return ret;5623 }5624 5625 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,5626 apply_time);5627 5628 return 0;5629}5630 5631static void iwl_mvm_csa_block_txqs(void *data, struct ieee80211_sta *sta)5632{5633 int i;5634 5635 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) {5636 struct iwl_mvm_txq *mvmtxq =5637 iwl_mvm_txq_from_mac80211(sta->txq[i]);5638 5639 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state);5640 }5641}5642 5643#define IWL_MAX_CSA_BLOCK_TX 15005644int iwl_mvm_pre_channel_switch(struct iwl_mvm *mvm,5645 struct ieee80211_vif *vif,5646 struct ieee80211_channel_switch *chsw)5647{5648 struct ieee80211_vif *csa_vif;5649 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);5650 struct iwl_mvm_txq *mvmtxq;5651 int ret;5652 5653 lockdep_assert_held(&mvm->mutex);5654 5655 mvmvif->csa_failed = false;5656 mvmvif->csa_blocks_tx = false;5657 5658 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",5659 chsw->chandef.center_freq1);5660 5661 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt,5662 ieee80211_vif_to_wdev(vif),5663 FW_DBG_TRIGGER_CHANNEL_SWITCH);5664 5665 switch (vif->type) {5666 case NL80211_IFTYPE_AP:5667 csa_vif =5668 rcu_dereference_protected(mvm->csa_vif,5669 lockdep_is_held(&mvm->mutex));5670 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active,5671 "Another CSA is already in progress"))5672 return -EBUSY;5673 5674 /* we still didn't unblock tx. prevent new CS meanwhile */5675 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif,5676 lockdep_is_held(&mvm->mutex)))5677 return -EBUSY;5678 5679 rcu_assign_pointer(mvm->csa_vif, vif);5680 5681 if (WARN_ONCE(mvmvif->csa_countdown,5682 "Previous CSA countdown didn't complete"))5683 return -EBUSY;5684 5685 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq;5686 5687 if (!chsw->block_tx)5688 break;5689 /* don't need blocking in driver otherwise - mac80211 will do */5690 if (!ieee80211_hw_check(mvm->hw, HANDLES_QUIET_CSA))5691 break;5692 5693 mvmvif->csa_blocks_tx = true;5694 mvmtxq = iwl_mvm_txq_from_mac80211(vif->txq);5695 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state);5696 ieee80211_iterate_stations_atomic(mvm->hw,5697 iwl_mvm_csa_block_txqs,5698 NULL);5699 break;5700 case NL80211_IFTYPE_STATION:5701 mvmvif->csa_blocks_tx = chsw->block_tx;5702 5703 /*5704 * In the new flow FW is in charge of timing the switch so there5705 * is no need for all of this5706 */5707 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,5708 CHANNEL_SWITCH_ERROR_NOTIF,5709 0))5710 break;5711 5712 /*5713 * We haven't configured the firmware to be associated yet since5714 * we don't know the dtim period. In this case, the firmware can't5715 * track the beacons.5716 */5717 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period)5718 return -EBUSY;5719 5720 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX &&5721 hweight16(vif->valid_links) <= 1)5722 schedule_delayed_work(&mvmvif->csa_work, 0);5723 5724 if (chsw->block_tx) {5725 /*5726 * In case of undetermined / long time with immediate5727 * quiet monitor status to gracefully disconnect5728 */5729 if (!chsw->count ||5730 chsw->count * vif->bss_conf.beacon_int >5731 IWL_MAX_CSA_BLOCK_TX)5732 schedule_delayed_work(&mvmvif->csa_work,5733 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX));5734 }5735 5736 if (!fw_has_capa(&mvm->fw->ucode_capa,5737 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {5738 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw);5739 if (ret)5740 return ret;5741 } else {5742 iwl_mvm_schedule_client_csa(mvm, vif, chsw);5743 }5744 5745 mvmvif->csa_count = chsw->count;5746 mvmvif->csa_misbehave = false;5747 break;5748 default:5749 break;5750 }5751 5752 mvmvif->ps_disabled = true;5753 5754 ret = iwl_mvm_power_update_ps(mvm);5755 if (ret)5756 return ret;5757 5758 /* we won't be on this channel any longer */5759 iwl_mvm_teardown_tdls_peers(mvm);5760 5761 return ret;5762}5763 5764static int iwl_mvm_mac_pre_channel_switch(struct ieee80211_hw *hw,5765 struct ieee80211_vif *vif,5766 struct ieee80211_channel_switch *chsw)5767{5768 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);5769 5770 guard(mvm)(mvm);5771 return iwl_mvm_pre_channel_switch(mvm, vif, chsw);5772}5773 5774void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw,5775 struct ieee80211_vif *vif,5776 struct ieee80211_channel_switch *chsw)5777{5778 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);5779 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);5780 struct iwl_chan_switch_te_cmd cmd = {5781 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,5782 mvmvif->color)),5783 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY),5784 .tsf = cpu_to_le32(chsw->timestamp),5785 .cs_count = chsw->count,5786 .cs_mode = chsw->block_tx,5787 };5788 5789 /*5790 * In the new flow FW is in charge of timing the switch so there is no5791 * need for all of this5792 */5793 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,5794 CHANNEL_SWITCH_ERROR_NOTIF, 0))5795 return;5796 5797 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY))5798 return;5799 5800 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n",5801 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx);5802 5803 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) {5804 if (mvmvif->csa_misbehave) {5805 struct ieee80211_bss_conf *link_conf;5806 5807 /* Second time, give up on this AP*/5808 5809 link_conf = wiphy_dereference(hw->wiphy,5810 vif->link_conf[chsw->link_id]);5811 if (WARN_ON(!link_conf))5812 return;5813 5814 iwl_mvm_abort_channel_switch(hw, vif, link_conf);5815 ieee80211_chswitch_done(vif, false, 0);5816 mvmvif->csa_misbehave = false;5817 return;5818 }5819 mvmvif->csa_misbehave = true;5820 }5821 mvmvif->csa_count = chsw->count;5822 5823 guard(mvm)(mvm);5824 if (mvmvif->csa_failed)5825 return;5826 5827 WARN_ON(iwl_mvm_send_cmd_pdu(mvm,5828 WIDE_ID(MAC_CONF_GROUP,5829 CHANNEL_SWITCH_TIME_EVENT_CMD),5830 0, sizeof(cmd), &cmd));5831}5832 5833static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop)5834{5835 int i;5836 5837 if (!iwl_mvm_has_new_tx_api(mvm)) {5838 /* we can't ask the firmware anything if it is dead */5839 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,5840 &mvm->status))5841 return;5842 if (drop) {5843 guard(mvm)(mvm);5844 iwl_mvm_flush_tx_path(mvm,5845 iwl_mvm_flushable_queues(mvm) & queues);5846 } else {5847 iwl_trans_wait_tx_queues_empty(mvm->trans, queues);5848 }5849 return;5850 }5851 5852 guard(mvm)(mvm);5853 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {5854 struct ieee80211_sta *sta;5855 5856 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],5857 lockdep_is_held(&mvm->mutex));5858 if (IS_ERR_OR_NULL(sta))5859 continue;5860 5861 if (drop)5862 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF);5863 else5864 iwl_mvm_wait_sta_queues_empty(mvm,5865 iwl_mvm_sta_from_mac80211(sta));5866 }5867}5868 5869void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,5870 u32 queues, bool drop)5871{5872 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);5873 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);5874 struct iwl_mvm_sta *mvmsta;5875 struct ieee80211_sta *sta;5876 bool ap_sta_done = false;5877 int i;5878 u32 msk = 0;5879 5880 if (!vif) {5881 iwl_mvm_flush_no_vif(mvm, queues, drop);5882 return;5883 }5884 5885 if (!drop && hweight16(vif->active_links) <= 1) {5886 int link_id = vif->active_links ? __ffs(vif->active_links) : 0;5887 struct ieee80211_bss_conf *link_conf;5888 5889 link_conf = wiphy_dereference(hw->wiphy,5890 vif->link_conf[link_id]);5891 if (WARN_ON(!link_conf))5892 return;5893 if (link_conf->csa_active && mvmvif->csa_blocks_tx)5894 drop = true;5895 }5896 5897 /* Make sure we're done with the deferred traffic before flushing */5898 flush_work(&mvm->add_stream_wk);5899 5900 mutex_lock(&mvm->mutex);5901 5902 /* flush the AP-station and all TDLS peers */5903 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {5904 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],5905 lockdep_is_held(&mvm->mutex));5906 if (IS_ERR_OR_NULL(sta))5907 continue;5908 5909 mvmsta = iwl_mvm_sta_from_mac80211(sta);5910 if (mvmsta->vif != vif)5911 continue;5912 5913 if (sta == mvmvif->ap_sta) {5914 if (ap_sta_done)5915 continue;5916 ap_sta_done = true;5917 }5918 5919 if (drop) {5920 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id,5921 mvmsta->tfd_queue_msk))5922 IWL_ERR(mvm, "flush request fail\n");5923 } else {5924 if (iwl_mvm_has_new_tx_api(mvm))5925 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta);5926 else /* only used for !iwl_mvm_has_new_tx_api() below */5927 msk |= mvmsta->tfd_queue_msk;5928 }5929 }5930 5931 mutex_unlock(&mvm->mutex);5932 5933 /* this can take a while, and we may need/want other operations5934 * to succeed while doing this, so do it without the mutex held5935 * If the firmware is dead, this can't work...5936 */5937 if (!drop && !iwl_mvm_has_new_tx_api(mvm) &&5938 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,5939 &mvm->status))5940 iwl_trans_wait_tx_queues_empty(mvm->trans, msk);5941}5942 5943void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif,5944 struct ieee80211_sta *sta)5945{5946 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);5947 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);5948 struct iwl_mvm_link_sta *mvm_link_sta;5949 struct ieee80211_link_sta *link_sta;5950 int link_id;5951 5952 guard(mvm)(mvm);5953 for_each_sta_active_link(vif, sta, link_sta, link_id) {5954 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id],5955 lockdep_is_held(&mvm->mutex));5956 if (!mvm_link_sta)5957 continue;5958 5959 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id,5960 mvmsta->tfd_queue_msk))5961 IWL_ERR(mvm, "flush request fail\n");5962 }5963}5964 5965static int iwl_mvm_mac_get_acs_survey(struct iwl_mvm *mvm, int idx,5966 struct survey_info *survey)5967{5968 int chan_idx;5969 enum nl80211_band band;5970 int ret;5971 5972 mutex_lock(&mvm->mutex);5973 5974 if (!mvm->acs_survey) {5975 ret = -ENOENT;5976 goto out;5977 }5978 5979 /* Find and return the next entry that has a non-zero active time */5980 for (band = 0; band < NUM_NL80211_BANDS; band++) {5981 struct ieee80211_supported_band *sband =5982 mvm->hw->wiphy->bands[band];5983 5984 if (!sband)5985 continue;5986 5987 for (chan_idx = 0; chan_idx < sband->n_channels; chan_idx++) {5988 struct iwl_mvm_acs_survey_channel *info =5989 &mvm->acs_survey->bands[band][chan_idx];5990 5991 if (!info->time)5992 continue;5993 5994 /* Found (the next) channel to report */5995 survey->channel = &sband->channels[chan_idx];5996 survey->filled = SURVEY_INFO_TIME |5997 SURVEY_INFO_TIME_BUSY |5998 SURVEY_INFO_TIME_RX |5999 SURVEY_INFO_TIME_TX;6000 survey->time = info->time;6001 survey->time_busy = info->time_busy;6002 survey->time_rx = info->time_rx;6003 survey->time_tx = info->time_tx;6004 survey->noise = info->noise;6005 if (survey->noise < 0)6006 survey->filled |= SURVEY_INFO_NOISE_DBM;6007 6008 /* Clear time so that channel is only reported once */6009 info->time = 0;6010 6011 ret = 0;6012 goto out;6013 }6014 }6015 6016 ret = -ENOENT;6017 6018out:6019 mutex_unlock(&mvm->mutex);6020 6021 return ret;6022}6023 6024int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,6025 struct survey_info *survey)6026{6027 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);6028 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,6029 WIDE_ID(SYSTEM_GROUP,6030 SYSTEM_STATISTICS_CMD),6031 IWL_FW_CMD_VER_UNKNOWN);6032 6033 memset(survey, 0, sizeof(*survey));6034 6035 if (!fw_has_capa(&mvm->fw->ucode_capa,6036 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))6037 return -ENOENT;6038 6039 /*6040 * Return the beacon stats at index zero and pass on following indices6041 * to the function returning the full survey, most likely for ACS6042 * (Automatic Channel Selection).6043 */6044 if (idx > 0)6045 return iwl_mvm_mac_get_acs_survey(mvm, idx - 1, survey);6046 6047 guard(mvm)(mvm);6048 6049 if (iwl_mvm_firmware_running(mvm)) {6050 int ret = iwl_mvm_request_statistics(mvm, false);6051 6052 if (ret)6053 return ret;6054 }6055 6056 survey->filled = SURVEY_INFO_TIME_RX |6057 SURVEY_INFO_TIME_TX;6058 6059 survey->time_rx = mvm->accu_radio_stats.rx_time +6060 mvm->radio_stats.rx_time;6061 do_div(survey->time_rx, USEC_PER_MSEC);6062 6063 survey->time_tx = mvm->accu_radio_stats.tx_time +6064 mvm->radio_stats.tx_time;6065 do_div(survey->time_tx, USEC_PER_MSEC);6066 6067 /* the new fw api doesn't support the following fields */6068 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN)6069 return 0;6070 6071 survey->filled |= SURVEY_INFO_TIME |6072 SURVEY_INFO_TIME_SCAN;6073 survey->time = mvm->accu_radio_stats.on_time_rf +6074 mvm->radio_stats.on_time_rf;6075 do_div(survey->time, USEC_PER_MSEC);6076 6077 survey->time_scan = mvm->accu_radio_stats.on_time_scan +6078 mvm->radio_stats.on_time_scan;6079 do_div(survey->time_scan, USEC_PER_MSEC);6080 6081 return 0;6082}6083 6084static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo)6085{6086 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK;6087 u32 gi_ltf;6088 6089 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {6090 case RATE_MCS_CHAN_WIDTH_20:6091 rinfo->bw = RATE_INFO_BW_20;6092 break;6093 case RATE_MCS_CHAN_WIDTH_40:6094 rinfo->bw = RATE_INFO_BW_40;6095 break;6096 case RATE_MCS_CHAN_WIDTH_80:6097 rinfo->bw = RATE_INFO_BW_80;6098 break;6099 case RATE_MCS_CHAN_WIDTH_160:6100 rinfo->bw = RATE_INFO_BW_160;6101 break;6102 case RATE_MCS_CHAN_WIDTH_320:6103 rinfo->bw = RATE_INFO_BW_320;6104 break;6105 }6106 6107 if (format == RATE_MCS_CCK_MSK ||6108 format == RATE_MCS_LEGACY_OFDM_MSK) {6109 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK);6110 6111 /* add the offset needed to get to the legacy ofdm indices */6112 if (format == RATE_MCS_LEGACY_OFDM_MSK)6113 rate += IWL_FIRST_OFDM_RATE;6114 6115 switch (rate) {6116 case IWL_RATE_1M_INDEX:6117 rinfo->legacy = 10;6118 break;6119 case IWL_RATE_2M_INDEX:6120 rinfo->legacy = 20;6121 break;6122 case IWL_RATE_5M_INDEX:6123 rinfo->legacy = 55;6124 break;6125 case IWL_RATE_11M_INDEX:6126 rinfo->legacy = 110;6127 break;6128 case IWL_RATE_6M_INDEX:6129 rinfo->legacy = 60;6130 break;6131 case IWL_RATE_9M_INDEX:6132 rinfo->legacy = 90;6133 break;6134 case IWL_RATE_12M_INDEX:6135 rinfo->legacy = 120;6136 break;6137 case IWL_RATE_18M_INDEX:6138 rinfo->legacy = 180;6139 break;6140 case IWL_RATE_24M_INDEX:6141 rinfo->legacy = 240;6142 break;6143 case IWL_RATE_36M_INDEX:6144 rinfo->legacy = 360;6145 break;6146 case IWL_RATE_48M_INDEX:6147 rinfo->legacy = 480;6148 break;6149 case IWL_RATE_54M_INDEX:6150 rinfo->legacy = 540;6151 }6152 return;6153 }6154 6155 rinfo->nss = u32_get_bits(rate_n_flags,6156 RATE_MCS_NSS_MSK) + 1;6157 rinfo->mcs = format == RATE_MCS_HT_MSK ?6158 RATE_HT_MCS_INDEX(rate_n_flags) :6159 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK);6160 6161 if (rate_n_flags & RATE_MCS_SGI_MSK)6162 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;6163 6164 switch (format) {6165 case RATE_MCS_EHT_MSK:6166 /* TODO: GI/LTF/RU. How does the firmware encode them? */6167 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS;6168 break;6169 case RATE_MCS_HE_MSK:6170 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK);6171 6172 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS;6173 6174 if (rate_n_flags & RATE_MCS_HE_106T_MSK) {6175 rinfo->bw = RATE_INFO_BW_HE_RU;6176 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106;6177 }6178 6179 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) {6180 case RATE_MCS_HE_TYPE_SU:6181 case RATE_MCS_HE_TYPE_EXT_SU:6182 if (gi_ltf == 0 || gi_ltf == 1)6183 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;6184 else if (gi_ltf == 2)6185 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;6186 else if (gi_ltf == 3)6187 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;6188 else6189 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;6190 break;6191 case RATE_MCS_HE_TYPE_MU:6192 if (gi_ltf == 0 || gi_ltf == 1)6193 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;6194 else if (gi_ltf == 2)6195 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;6196 else6197 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;6198 break;6199 case RATE_MCS_HE_TYPE_TRIG:6200 if (gi_ltf == 0 || gi_ltf == 1)6201 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;6202 else6203 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;6204 break;6205 }6206 6207 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK)6208 rinfo->he_dcm = 1;6209 break;6210 case RATE_MCS_HT_MSK:6211 rinfo->flags |= RATE_INFO_FLAGS_MCS;6212 break;6213 case RATE_MCS_VHT_MSK:6214 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;6215 break;6216 }6217}6218 6219void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,6220 struct ieee80211_vif *vif,6221 struct ieee80211_sta *sta,6222 struct station_info *sinfo)6223{6224 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);6225 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);6226 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);6227 int i;6228 6229 if (mvmsta->deflink.avg_energy) {6230 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy;6231 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);6232 }6233 6234 if (iwl_mvm_has_tlc_offload(mvm)) {6235 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw;6236 6237 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate);6238 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);6239 }6240 6241 /* if beacon filtering isn't on mac80211 does it anyway */6242 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))6243 return;6244 6245 if (!vif->cfg.assoc)6246 return;6247 6248 guard(mvm)(mvm);6249 6250 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id)6251 return;6252 6253 if (iwl_mvm_request_statistics(mvm, false))6254 return;6255 6256 sinfo->rx_beacon = 0;6257 for_each_mvm_vif_valid_link(mvmvif, i)6258 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons +6259 mvmvif->link[i]->beacon_stats.accu_num_beacons;6260 6261 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX);6262 if (mvmvif->deflink.beacon_stats.avg_signal) {6263 /* firmware only reports a value after RXing a few beacons */6264 sinfo->rx_beacon_signal_avg =6265 mvmvif->deflink.beacon_stats.avg_signal;6266 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG);6267 }6268}6269 6270static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm,6271 struct ieee80211_vif *vif,6272 const struct ieee80211_mlme_event *mlme)6273{6274 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) &&6275 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) {6276 iwl_dbg_tlv_time_point(&mvm->fwrt,6277 IWL_FW_INI_TIME_POINT_ASSOC_FAILED,6278 NULL);6279 return;6280 }6281 6282 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) {6283 iwl_dbg_tlv_time_point(&mvm->fwrt,6284 IWL_FW_INI_TIME_POINT_DEASSOC,6285 NULL);6286 return;6287 }6288}6289 6290static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,6291 struct ieee80211_vif *vif,6292 const struct ieee80211_event *event)6293{6294#define CHECK_MLME_TRIGGER(_cnt, _fmt...) \6295 do { \6296 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \6297 break; \6298 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \6299 } while (0)6300 6301 struct iwl_fw_dbg_trigger_tlv *trig;6302 struct iwl_fw_dbg_trigger_mlme *trig_mlme;6303 6304 if (iwl_trans_dbg_ini_valid(mvm->trans)) {6305 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme);6306 return;6307 }6308 6309 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),6310 FW_DBG_TRIGGER_MLME);6311 if (!trig)6312 return;6313 6314 trig_mlme = (void *)trig->data;6315 6316 if (event->u.mlme.data == ASSOC_EVENT) {6317 if (event->u.mlme.status == MLME_DENIED)6318 CHECK_MLME_TRIGGER(stop_assoc_denied,6319 "DENIED ASSOC: reason %d",6320 event->u.mlme.reason);6321 else if (event->u.mlme.status == MLME_TIMEOUT)6322 CHECK_MLME_TRIGGER(stop_assoc_timeout,6323 "ASSOC TIMEOUT");6324 } else if (event->u.mlme.data == AUTH_EVENT) {6325 if (event->u.mlme.status == MLME_DENIED)6326 CHECK_MLME_TRIGGER(stop_auth_denied,6327 "DENIED AUTH: reason %d",6328 event->u.mlme.reason);6329 else if (event->u.mlme.status == MLME_TIMEOUT)6330 CHECK_MLME_TRIGGER(stop_auth_timeout,6331 "AUTH TIMEOUT");6332 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {6333 CHECK_MLME_TRIGGER(stop_rx_deauth,6334 "DEAUTH RX %d", event->u.mlme.reason);6335 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {6336 CHECK_MLME_TRIGGER(stop_tx_deauth,6337 "DEAUTH TX %d", event->u.mlme.reason);6338 }6339#undef CHECK_MLME_TRIGGER6340}6341 6342static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,6343 struct ieee80211_vif *vif,6344 const struct ieee80211_event *event)6345{6346 struct iwl_fw_dbg_trigger_tlv *trig;6347 struct iwl_fw_dbg_trigger_ba *ba_trig;6348 6349 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),6350 FW_DBG_TRIGGER_BA);6351 if (!trig)6352 return;6353 6354 ba_trig = (void *)trig->data;6355 6356 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))6357 return;6358 6359 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,6360 "BAR received from %pM, tid %d, ssn %d",6361 event->u.ba.sta->addr, event->u.ba.tid,6362 event->u.ba.ssn);6363}6364 6365void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,6366 struct ieee80211_vif *vif,6367 const struct ieee80211_event *event)6368{6369 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);6370 6371 switch (event->type) {6372 case MLME_EVENT:6373 iwl_mvm_event_mlme_callback(mvm, vif, event);6374 break;6375 case BAR_RX_EVENT:6376 iwl_mvm_event_bar_rx_callback(mvm, vif, event);6377 break;6378 case BA_FRAME_TIMEOUT:6379 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta,6380 event->u.ba.tid);6381 break;6382 default:6383 break;6384 }6385}6386 6387#define SYNC_RX_QUEUE_TIMEOUT (HZ)6388void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,6389 enum iwl_mvm_rxq_notif_type type,6390 bool sync,6391 const void *data, u32 size)6392{6393 struct {6394 struct iwl_rxq_sync_cmd cmd;6395 struct iwl_mvm_internal_rxq_notif notif;6396 } __packed cmd = {6397 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1),6398 .cmd.count =6399 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) +6400 size),6401 .notif.type = type,6402 .notif.sync = sync,6403 };6404 struct iwl_host_cmd hcmd = {6405 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD),6406 .data[0] = &cmd,6407 .len[0] = sizeof(cmd),6408 .data[1] = data,6409 .len[1] = size,6410 .flags = CMD_SEND_IN_RFKILL | (sync ? 0 : CMD_ASYNC),6411 };6412 int ret;6413 6414 /* size must be a multiple of DWORD */6415 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3)))6416 return;6417 6418 if (!iwl_mvm_has_new_rx_api(mvm))6419 return;6420 6421 if (sync) {6422 cmd.notif.cookie = mvm->queue_sync_cookie;6423 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1;6424 }6425 6426 ret = iwl_mvm_send_cmd(mvm, &hcmd);6427 if (ret) {6428 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);6429 goto out;6430 }6431 6432 if (sync) {6433 lockdep_assert_held(&mvm->mutex);6434 ret = wait_event_timeout(mvm->rx_sync_waitq,6435 READ_ONCE(mvm->queue_sync_state) == 0,6436 SYNC_RX_QUEUE_TIMEOUT);6437 WARN_ONCE(!ret, "queue sync: failed to sync, state is 0x%lx, cookie %d\n",6438 mvm->queue_sync_state,6439 mvm->queue_sync_cookie);6440 }6441 6442out:6443 if (sync) {6444 mvm->queue_sync_state = 0;6445 mvm->queue_sync_cookie++;6446 }6447}6448 6449void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)6450{6451 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);6452 6453 guard(mvm)(mvm);6454 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0);6455}6456 6457int6458iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw,6459 struct ieee80211_vif *vif,6460 struct cfg80211_ftm_responder_stats *stats)6461{6462 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);6463 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);6464 6465 if (vif->p2p || vif->type != NL80211_IFTYPE_AP ||6466 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder)6467 return -EINVAL;6468 6469 mutex_lock(&mvm->mutex);6470 *stats = mvm->ftm_resp_stats;6471 mutex_unlock(&mvm->mutex);6472 6473 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) |6474 BIT(NL80211_FTM_STATS_PARTIAL_NUM) |6475 BIT(NL80211_FTM_STATS_FAILED_NUM) |6476 BIT(NL80211_FTM_STATS_ASAP_NUM) |6477 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) |6478 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) |6479 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) |6480 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) |6481 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM);6482 6483 return 0;6484}6485 6486int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif,6487 struct cfg80211_pmsr_request *request)6488{6489 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);6490 6491 guard(mvm)(mvm);6492 return iwl_mvm_ftm_start(mvm, vif, request);6493}6494 6495void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif,6496 struct cfg80211_pmsr_request *request)6497{6498 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);6499 6500 guard(mvm)(mvm);6501 iwl_mvm_ftm_abort(mvm, request);6502}6503 6504static bool iwl_mvm_can_hw_csum(struct sk_buff *skb)6505{6506 u8 protocol = ip_hdr(skb)->protocol;6507 6508 if (!IS_ENABLED(CONFIG_INET))6509 return false;6510 6511 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP;6512}6513 6514static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw,6515 struct sk_buff *head,6516 struct sk_buff *skb)6517{6518 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);6519 6520 /* For now don't aggregate IPv6 in AMSDU */6521 if (skb->protocol != htons(ETH_P_IP))6522 return false;6523 6524 if (!iwl_mvm_is_csum_supported(mvm))6525 return true;6526 6527 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head);6528}6529 6530int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw,6531 struct ieee80211_vif *vif,6532 struct cfg80211_set_hw_timestamp *hwts)6533{6534 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);6535 u32 protocols = 0;6536 6537 /* HW timestamping is only supported for a specific station */6538 if (!hwts->macaddr)6539 return -EOPNOTSUPP;6540 6541 if (hwts->enable)6542 protocols =6543 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM;6544 6545 guard(mvm)(mvm);6546 return iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols);6547}6548 6549const struct ieee80211_ops iwl_mvm_hw_ops = {6550 .tx = iwl_mvm_mac_tx,6551 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue,6552 .ampdu_action = iwl_mvm_mac_ampdu_action,6553 .get_antenna = iwl_mvm_op_get_antenna,6554 .set_antenna = iwl_mvm_op_set_antenna,6555 .start = iwl_mvm_mac_start,6556 .reconfig_complete = iwl_mvm_mac_reconfig_complete,6557 .stop = iwl_mvm_mac_stop,6558 .add_interface = iwl_mvm_mac_add_interface,6559 .remove_interface = iwl_mvm_mac_remove_interface,6560 .config = iwl_mvm_mac_config,6561 .prepare_multicast = iwl_mvm_prepare_multicast,6562 .configure_filter = iwl_mvm_configure_filter,6563 .config_iface_filter = iwl_mvm_config_iface_filter,6564 .bss_info_changed = iwl_mvm_bss_info_changed,6565 .hw_scan = iwl_mvm_mac_hw_scan,6566 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,6567 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,6568 .sta_state = iwl_mvm_mac_sta_state,6569 .sta_notify = iwl_mvm_mac_sta_notify,6570 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,6571 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,6572 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,6573 .sta_rc_update = iwl_mvm_sta_rc_update,6574 .conf_tx = iwl_mvm_mac_conf_tx,6575 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,6576 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx,6577 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,6578 .flush = iwl_mvm_mac_flush,6579 .flush_sta = iwl_mvm_mac_flush_sta,6580 .sched_scan_start = iwl_mvm_mac_sched_scan_start,6581 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,6582 .set_key = iwl_mvm_mac_set_key,6583 .update_tkip_key = iwl_mvm_mac_update_tkip_key,6584 .remain_on_channel = iwl_mvm_roc,6585 .cancel_remain_on_channel = iwl_mvm_cancel_roc,6586 .add_chanctx = iwl_mvm_add_chanctx,6587 .remove_chanctx = iwl_mvm_remove_chanctx,6588 .change_chanctx = iwl_mvm_change_chanctx,6589 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,6590 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,6591 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,6592 6593 .start_ap = iwl_mvm_start_ap,6594 .stop_ap = iwl_mvm_stop_ap,6595 .join_ibss = iwl_mvm_start_ibss,6596 .leave_ibss = iwl_mvm_stop_ibss,6597 6598 .tx_last_beacon = iwl_mvm_tx_last_beacon,6599 6600 .set_tim = iwl_mvm_set_tim,6601 6602 .channel_switch = iwl_mvm_channel_switch,6603 .pre_channel_switch = iwl_mvm_mac_pre_channel_switch,6604 .post_channel_switch = iwl_mvm_post_channel_switch,6605 .abort_channel_switch = iwl_mvm_abort_channel_switch,6606 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon,6607 6608 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,6609 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,6610 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,6611 6612 .event_callback = iwl_mvm_mac_event_callback,6613 6614 .sync_rx_queues = iwl_mvm_sync_rx_queues,6615 6616 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)6617 6618#ifdef CONFIG_PM_SLEEP6619 /* look at d3.c */6620 .suspend = iwl_mvm_suspend,6621 .resume = iwl_mvm_resume,6622 .set_wakeup = iwl_mvm_set_wakeup,6623 .set_rekey_data = iwl_mvm_set_rekey_data,6624#if IS_ENABLED(CONFIG_IPV6)6625 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,6626#endif6627 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,6628#endif6629 .get_survey = iwl_mvm_mac_get_survey,6630 .sta_statistics = iwl_mvm_mac_sta_statistics,6631 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats,6632 .start_pmsr = iwl_mvm_start_pmsr,6633 .abort_pmsr = iwl_mvm_abort_pmsr,6634 6635 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate,6636#ifdef CONFIG_IWLWIFI_DEBUGFS6637 .vif_add_debugfs = iwl_mvm_vif_add_debugfs,6638 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs,6639#endif6640 .set_hw_timestamp = iwl_mvm_set_hw_timestamp,6641};6642