18e99ea8dSJohannes Berg // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 28e99ea8dSJohannes Berg /* 33538c809SLuca Coelho * Copyright (C) 2012-2015, 2018-2022 Intel Corporation 48e99ea8dSJohannes Berg * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 58e99ea8dSJohannes Berg * Copyright (C) 2016-2017 Intel Deutschland GmbH 68e99ea8dSJohannes Berg */ 7e705c121SKalle Valo #include <net/mac80211.h> 8e705c121SKalle Valo 9e705c121SKalle Valo #include "mvm.h" 10e705c121SKalle Valo #include "sta.h" 11e705c121SKalle Valo #include "rs.h" 12e705c121SKalle Valo 13854c5705SSara Sharon /* 14854c5705SSara Sharon * New version of ADD_STA_sta command added new fields at the end of the 15854c5705SSara Sharon * structure, so sending the size of the relevant API's structure is enough to 16854c5705SSara Sharon * support both API versions. 17854c5705SSara Sharon */ 18854c5705SSara Sharon static inline int iwl_mvm_add_sta_cmd_size(struct iwl_mvm *mvm) 19854c5705SSara Sharon { 20ced19f26SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) || 21ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 22ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd); 23ced19f26SSara Sharon else 24ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd_v7); 25854c5705SSara Sharon } 26854c5705SSara Sharon 27e705c121SKalle Valo static int iwl_mvm_find_free_sta_id(struct iwl_mvm *mvm, 28e705c121SKalle Valo enum nl80211_iftype iftype) 29e705c121SKalle Valo { 30e705c121SKalle Valo int sta_id; 31e705c121SKalle Valo u32 reserved_ids = 0; 32e705c121SKalle Valo 33be9ae34eSNathan Errera BUILD_BUG_ON(IWL_MVM_STATION_COUNT_MAX > 32); 34e705c121SKalle Valo WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)); 35e705c121SKalle Valo 36e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 37e705c121SKalle Valo 38e705c121SKalle Valo /* d0i3/d3 assumes the AP's sta_id (of sta vif) is 0. reserve it. */ 39e705c121SKalle Valo if (iftype != NL80211_IFTYPE_STATION) 40e705c121SKalle Valo reserved_ids = BIT(0); 41e705c121SKalle Valo 42e705c121SKalle Valo /* Don't take rcu_read_lock() since we are protected by mvm->mutex */ 43be9ae34eSNathan Errera for (sta_id = 0; sta_id < mvm->fw->ucode_capa.num_stations; sta_id++) { 44e705c121SKalle Valo if (BIT(sta_id) & reserved_ids) 45e705c121SKalle Valo continue; 46e705c121SKalle Valo 47e705c121SKalle Valo if (!rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 48e705c121SKalle Valo lockdep_is_held(&mvm->mutex))) 49e705c121SKalle Valo return sta_id; 50e705c121SKalle Valo } 510ae98812SSara Sharon return IWL_MVM_INVALID_STA; 52e705c121SKalle Valo } 53e705c121SKalle Valo 5477b6a2e5SMiri Korenblit /* Calculate the ampdu density and max size */ 5577b6a2e5SMiri Korenblit static u32 iwl_mvm_get_sta_ampdu_dens(struct ieee80211_sta *sta, 5677b6a2e5SMiri Korenblit u32 *_agg_size) 5777b6a2e5SMiri Korenblit { 5877b6a2e5SMiri Korenblit struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5977b6a2e5SMiri Korenblit u32 agg_size = 0, mpdu_dens = 0; 6077b6a2e5SMiri Korenblit 6177b6a2e5SMiri Korenblit if (sta->deflink.ht_cap.ht_supported) 6277b6a2e5SMiri Korenblit mpdu_dens = sta->deflink.ht_cap.ampdu_density; 6377b6a2e5SMiri Korenblit 6477b6a2e5SMiri Korenblit if (mvm_sta->vif->bss_conf.chandef.chan->band == NL80211_BAND_6GHZ) { 6577b6a2e5SMiri Korenblit mpdu_dens = le16_get_bits(sta->deflink.he_6ghz_capa.capa, 6677b6a2e5SMiri Korenblit IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START); 6777b6a2e5SMiri Korenblit agg_size = le16_get_bits(sta->deflink.he_6ghz_capa.capa, 6877b6a2e5SMiri Korenblit IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP); 6977b6a2e5SMiri Korenblit } else if (sta->deflink.vht_cap.vht_supported) { 7077b6a2e5SMiri Korenblit agg_size = sta->deflink.vht_cap.cap & 7177b6a2e5SMiri Korenblit IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; 7277b6a2e5SMiri Korenblit agg_size >>= 7377b6a2e5SMiri Korenblit IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; 7477b6a2e5SMiri Korenblit } else if (sta->deflink.ht_cap.ht_supported) { 7577b6a2e5SMiri Korenblit agg_size = sta->deflink.ht_cap.ampdu_factor; 7677b6a2e5SMiri Korenblit } 7777b6a2e5SMiri Korenblit 7877b6a2e5SMiri Korenblit /* D6.0 10.12.2 A-MPDU length limit rules 7977b6a2e5SMiri Korenblit * A STA indicates the maximum length of the A-MPDU preEOF padding 8077b6a2e5SMiri Korenblit * that it can receive in an HE PPDU in the Maximum A-MPDU Length 8177b6a2e5SMiri Korenblit * Exponent field in its HT Capabilities, VHT Capabilities, 8277b6a2e5SMiri Korenblit * and HE 6 GHz Band Capabilities elements (if present) and the 8377b6a2e5SMiri Korenblit * Maximum AMPDU Length Exponent Extension field in its HE 8477b6a2e5SMiri Korenblit * Capabilities element 8577b6a2e5SMiri Korenblit */ 8677b6a2e5SMiri Korenblit if (sta->deflink.he_cap.has_he) 8777b6a2e5SMiri Korenblit agg_size += 8877b6a2e5SMiri Korenblit u8_get_bits(sta->deflink.he_cap.he_cap_elem.mac_cap_info[3], 8977b6a2e5SMiri Korenblit IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK); 9077b6a2e5SMiri Korenblit 9177b6a2e5SMiri Korenblit /* Limit to max A-MPDU supported by FW */ 9277b6a2e5SMiri Korenblit if (agg_size > (STA_FLG_MAX_AGG_SIZE_4M >> STA_FLG_MAX_AGG_SIZE_SHIFT)) 9377b6a2e5SMiri Korenblit agg_size = (STA_FLG_MAX_AGG_SIZE_4M >> 9477b6a2e5SMiri Korenblit STA_FLG_MAX_AGG_SIZE_SHIFT); 9577b6a2e5SMiri Korenblit 9677b6a2e5SMiri Korenblit *_agg_size = agg_size; 9777b6a2e5SMiri Korenblit return mpdu_dens; 9877b6a2e5SMiri Korenblit } 9977b6a2e5SMiri Korenblit 10077b6a2e5SMiri Korenblit static u8 iwl_mvm_get_sta_uapsd_acs(struct ieee80211_sta *sta) 10177b6a2e5SMiri Korenblit { 10277b6a2e5SMiri Korenblit u8 uapsd_acs = 0; 10377b6a2e5SMiri Korenblit 10477b6a2e5SMiri Korenblit if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK) 10577b6a2e5SMiri Korenblit uapsd_acs |= BIT(AC_BK); 10677b6a2e5SMiri Korenblit if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE) 10777b6a2e5SMiri Korenblit uapsd_acs |= BIT(AC_BE); 10877b6a2e5SMiri Korenblit if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI) 10977b6a2e5SMiri Korenblit uapsd_acs |= BIT(AC_VI); 11077b6a2e5SMiri Korenblit if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) 11177b6a2e5SMiri Korenblit uapsd_acs |= BIT(AC_VO); 11277b6a2e5SMiri Korenblit 11377b6a2e5SMiri Korenblit return uapsd_acs | uapsd_acs << 4; 11477b6a2e5SMiri Korenblit } 11577b6a2e5SMiri Korenblit 116e705c121SKalle Valo /* send station add/update command to firmware */ 117e705c121SKalle Valo int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 11824afba76SLiad Kaufman bool update, unsigned int flags) 119e705c121SKalle Valo { 120e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 121e705c121SKalle Valo struct iwl_mvm_add_sta_cmd add_sta_cmd = { 122*c8ee33e1SGregory Greenman .sta_id = mvm_sta->deflink.sta_id, 123e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color), 124e705c121SKalle Valo .add_modify = update ? 1 : 0, 125e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_FAT_EN_MSK | 1268addabf8SNaftali Goldstein STA_FLG_MIMO_EN_MSK | 1278addabf8SNaftali Goldstein STA_FLG_RTS_MIMO_PROT), 128cf0cda19SLiad Kaufman .tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg), 129e705c121SKalle Valo }; 130e705c121SKalle Valo int ret; 131e705c121SKalle Valo u32 status; 132e705c121SKalle Valo u32 agg_size = 0, mpdu_dens = 0; 133e705c121SKalle Valo 134ced19f26SSara Sharon if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 135ced19f26SSara Sharon add_sta_cmd.station_type = mvm_sta->sta_type; 136ced19f26SSara Sharon 13724afba76SLiad Kaufman if (!update || (flags & STA_MODIFY_QUEUES)) { 138e705c121SKalle Valo memcpy(&add_sta_cmd.addr, sta->addr, ETH_ALEN); 13924afba76SLiad Kaufman 140bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) { 141bb49701bSSara Sharon add_sta_cmd.tfd_queue_msk = 142bb49701bSSara Sharon cpu_to_le32(mvm_sta->tfd_queue_msk); 143bb49701bSSara Sharon 14424afba76SLiad Kaufman if (flags & STA_MODIFY_QUEUES) 14524afba76SLiad Kaufman add_sta_cmd.modify_mask |= STA_MODIFY_QUEUES; 146bb49701bSSara Sharon } else { 147bb49701bSSara Sharon WARN_ON(flags & STA_MODIFY_QUEUES); 148bb49701bSSara Sharon } 149e705c121SKalle Valo } 150e705c121SKalle Valo 151046d2e7cSSriram R switch (sta->deflink.bandwidth) { 1525dca295dSIlan Peer case IEEE80211_STA_RX_BW_320: 153e705c121SKalle Valo case IEEE80211_STA_RX_BW_160: 154e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_160MHZ); 1555a2abdcaSGustavo A. R. Silva fallthrough; 156e705c121SKalle Valo case IEEE80211_STA_RX_BW_80: 157e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_80MHZ); 1585a2abdcaSGustavo A. R. Silva fallthrough; 159e705c121SKalle Valo case IEEE80211_STA_RX_BW_40: 160e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_40MHZ); 1615a2abdcaSGustavo A. R. Silva fallthrough; 162e705c121SKalle Valo case IEEE80211_STA_RX_BW_20: 163046d2e7cSSriram R if (sta->deflink.ht_cap.ht_supported) 164e705c121SKalle Valo add_sta_cmd.station_flags |= 165e705c121SKalle Valo cpu_to_le32(STA_FLG_FAT_EN_20MHZ); 166e705c121SKalle Valo break; 167e705c121SKalle Valo } 168e705c121SKalle Valo 169046d2e7cSSriram R switch (sta->deflink.rx_nss) { 170e705c121SKalle Valo case 1: 171e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 172e705c121SKalle Valo break; 173e705c121SKalle Valo case 2: 174e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO2); 175e705c121SKalle Valo break; 176e705c121SKalle Valo case 3 ... 8: 177e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO3); 178e705c121SKalle Valo break; 179e705c121SKalle Valo } 180e705c121SKalle Valo 181261ce887SBenjamin Berg switch (sta->deflink.smps_mode) { 182e705c121SKalle Valo case IEEE80211_SMPS_AUTOMATIC: 183e705c121SKalle Valo case IEEE80211_SMPS_NUM_MODES: 184e705c121SKalle Valo WARN_ON(1); 185e705c121SKalle Valo break; 186e705c121SKalle Valo case IEEE80211_SMPS_STATIC: 187e705c121SKalle Valo /* override NSS */ 188e705c121SKalle Valo add_sta_cmd.station_flags &= ~cpu_to_le32(STA_FLG_MIMO_EN_MSK); 189e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 190e705c121SKalle Valo break; 191e705c121SKalle Valo case IEEE80211_SMPS_DYNAMIC: 192e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_RTS_MIMO_PROT); 193e705c121SKalle Valo break; 194e705c121SKalle Valo case IEEE80211_SMPS_OFF: 195e705c121SKalle Valo /* nothing */ 196e705c121SKalle Valo break; 197e705c121SKalle Valo } 198e705c121SKalle Valo 19977b6a2e5SMiri Korenblit if (sta->deflink.ht_cap.ht_supported || 20077b6a2e5SMiri Korenblit mvm_sta->vif->bss_conf.chandef.chan->band == NL80211_BAND_6GHZ) 201e705c121SKalle Valo add_sta_cmd.station_flags_msk |= 202e705c121SKalle Valo cpu_to_le32(STA_FLG_MAX_AGG_SIZE_MSK | 203e705c121SKalle Valo STA_FLG_AGG_MPDU_DENS_MSK); 204e705c121SKalle Valo 20577b6a2e5SMiri Korenblit mpdu_dens = iwl_mvm_get_sta_ampdu_dens(sta, &agg_size); 206e705c121SKalle Valo add_sta_cmd.station_flags |= 207e705c121SKalle Valo cpu_to_le32(agg_size << STA_FLG_MAX_AGG_SIZE_SHIFT); 208e705c121SKalle Valo add_sta_cmd.station_flags |= 209e705c121SKalle Valo cpu_to_le32(mpdu_dens << STA_FLG_AGG_MPDU_DENS_SHIFT); 21077b6a2e5SMiri Korenblit 211d94c5a82SGregory Greenman if (mvm_sta->sta_state >= IEEE80211_STA_ASSOC) 21219c52f46SEmmanuel Grumbach add_sta_cmd.assoc_id = cpu_to_le16(sta->aid); 213e705c121SKalle Valo 21465e25482SJohannes Berg if (sta->wme) { 21565e25482SJohannes Berg add_sta_cmd.modify_mask |= STA_MODIFY_UAPSD_ACS; 21677b6a2e5SMiri Korenblit add_sta_cmd.uapsd_acs = iwl_mvm_get_sta_uapsd_acs(sta); 217e71ca5eaSEmmanuel Grumbach add_sta_cmd.sp_length = sta->max_sp ? sta->max_sp * 2 : 128; 21865e25482SJohannes Berg } 21965e25482SJohannes Berg 220e705c121SKalle Valo status = ADD_STA_SUCCESS; 221854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 222854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 223e705c121SKalle Valo &add_sta_cmd, &status); 224e705c121SKalle Valo if (ret) 225e705c121SKalle Valo return ret; 226e705c121SKalle Valo 227837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 228e705c121SKalle Valo case ADD_STA_SUCCESS: 229e705c121SKalle Valo IWL_DEBUG_ASSOC(mvm, "ADD_STA PASSED\n"); 230e705c121SKalle Valo break; 231e705c121SKalle Valo default: 232e705c121SKalle Valo ret = -EIO; 233e705c121SKalle Valo IWL_ERR(mvm, "ADD_STA failed\n"); 234e705c121SKalle Valo break; 235e705c121SKalle Valo } 236e705c121SKalle Valo 237e705c121SKalle Valo return ret; 238e705c121SKalle Valo } 239e705c121SKalle Valo 2408cef5344SKees Cook static void iwl_mvm_rx_agg_session_expired(struct timer_list *t) 24110b2b201SSara Sharon { 2428cef5344SKees Cook struct iwl_mvm_baid_data *data = 2438cef5344SKees Cook from_timer(data, t, session_timer); 2448cef5344SKees Cook struct iwl_mvm_baid_data __rcu **rcu_ptr = data->rcu_ptr; 24510b2b201SSara Sharon struct iwl_mvm_baid_data *ba_data; 24610b2b201SSara Sharon struct ieee80211_sta *sta; 24710b2b201SSara Sharon struct iwl_mvm_sta *mvm_sta; 24810b2b201SSara Sharon unsigned long timeout; 24910b2b201SSara Sharon 25010b2b201SSara Sharon rcu_read_lock(); 25110b2b201SSara Sharon 25210b2b201SSara Sharon ba_data = rcu_dereference(*rcu_ptr); 25310b2b201SSara Sharon 25410b2b201SSara Sharon if (WARN_ON(!ba_data)) 25510b2b201SSara Sharon goto unlock; 25610b2b201SSara Sharon 25710b2b201SSara Sharon if (!ba_data->timeout) 25810b2b201SSara Sharon goto unlock; 25910b2b201SSara Sharon 26010b2b201SSara Sharon timeout = ba_data->last_rx + TU_TO_JIFFIES(ba_data->timeout * 2); 26110b2b201SSara Sharon if (time_is_after_jiffies(timeout)) { 26210b2b201SSara Sharon mod_timer(&ba_data->session_timer, timeout); 26310b2b201SSara Sharon goto unlock; 26410b2b201SSara Sharon } 26510b2b201SSara Sharon 26610b2b201SSara Sharon /* Timer expired */ 26710b2b201SSara Sharon sta = rcu_dereference(ba_data->mvm->fw_id_to_mac_id[ba_data->sta_id]); 26861dd8a8aSEmmanuel Grumbach 26961dd8a8aSEmmanuel Grumbach /* 27061dd8a8aSEmmanuel Grumbach * sta should be valid unless the following happens: 27161dd8a8aSEmmanuel Grumbach * The firmware asserts which triggers a reconfig flow, but 27261dd8a8aSEmmanuel Grumbach * the reconfig fails before we set the pointer to sta into 27361dd8a8aSEmmanuel Grumbach * the fw_id_to_mac_id pointer table. Mac80211 can't stop 27461dd8a8aSEmmanuel Grumbach * A-MDPU and hence the timer continues to run. Then, the 27561dd8a8aSEmmanuel Grumbach * timer expires and sta is NULL. 27661dd8a8aSEmmanuel Grumbach */ 27761dd8a8aSEmmanuel Grumbach if (!sta) 27861dd8a8aSEmmanuel Grumbach goto unlock; 27961dd8a8aSEmmanuel Grumbach 28010b2b201SSara Sharon mvm_sta = iwl_mvm_sta_from_mac80211(sta); 28120fc690fSNaftali Goldstein ieee80211_rx_ba_timer_expired(mvm_sta->vif, 28210b2b201SSara Sharon sta->addr, ba_data->tid); 28310b2b201SSara Sharon unlock: 28410b2b201SSara Sharon rcu_read_unlock(); 28510b2b201SSara Sharon } 28610b2b201SSara Sharon 2879794c64fSLiad Kaufman /* Disable aggregations for a bitmap of TIDs for a given station */ 2889794c64fSLiad Kaufman static int iwl_mvm_invalidate_sta_queue(struct iwl_mvm *mvm, int queue, 2899794c64fSLiad Kaufman unsigned long disable_agg_tids, 2909794c64fSLiad Kaufman bool remove_queue) 2919794c64fSLiad Kaufman { 2929794c64fSLiad Kaufman struct iwl_mvm_add_sta_cmd cmd = {}; 2939794c64fSLiad Kaufman struct ieee80211_sta *sta; 2949794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 2959794c64fSLiad Kaufman u32 status; 2969794c64fSLiad Kaufman u8 sta_id; 2979794c64fSLiad Kaufman 298bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 299bb49701bSSara Sharon return -EINVAL; 300bb49701bSSara Sharon 3019794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 3029794c64fSLiad Kaufman 3039794c64fSLiad Kaufman rcu_read_lock(); 3049794c64fSLiad Kaufman 3059794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 3069794c64fSLiad Kaufman 3079794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 3089794c64fSLiad Kaufman rcu_read_unlock(); 3099794c64fSLiad Kaufman return -EINVAL; 3109794c64fSLiad Kaufman } 3119794c64fSLiad Kaufman 3129794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 3139794c64fSLiad Kaufman 3149794c64fSLiad Kaufman mvmsta->tid_disable_agg |= disable_agg_tids; 3159794c64fSLiad Kaufman 3169794c64fSLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 317*c8ee33e1SGregory Greenman cmd.sta_id = mvmsta->deflink.sta_id; 3189794c64fSLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 3199794c64fSLiad Kaufman cmd.modify_mask = STA_MODIFY_QUEUES; 3209794c64fSLiad Kaufman if (disable_agg_tids) 3219794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 3229794c64fSLiad Kaufman if (remove_queue) 3239794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_QUEUE_REMOVAL; 3249794c64fSLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 3259794c64fSLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 3269794c64fSLiad Kaufman 3279794c64fSLiad Kaufman rcu_read_unlock(); 3289794c64fSLiad Kaufman 3299794c64fSLiad Kaufman /* Notify FW of queue removal from the STA queues */ 3309794c64fSLiad Kaufman status = ADD_STA_SUCCESS; 331b2c1bf59SSara Sharon return iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 3329794c64fSLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), 3339794c64fSLiad Kaufman &cmd, &status); 3349794c64fSLiad Kaufman } 3359794c64fSLiad Kaufman 336cfbc6c4cSSara Sharon static int iwl_mvm_disable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 337c5a976cfSJohannes Berg int sta_id, u16 *queueptr, u8 tid) 33899448a8cSJohannes Berg { 339c6ce1c74SJohannes Berg int queue = *queueptr; 34099448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 34199448a8cSJohannes Berg .scd_queue = queue, 34299448a8cSJohannes Berg .action = SCD_CFG_DISABLE_QUEUE, 34399448a8cSJohannes Berg }; 34499448a8cSJohannes Berg int ret; 34599448a8cSJohannes Berg 346227f2597SJohannes Berg lockdep_assert_held(&mvm->mutex); 347227f2597SJohannes Berg 34899448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) { 349227f2597SJohannes Berg if (mvm->sta_remove_requires_queue_remove) { 350227f2597SJohannes Berg u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, 351227f2597SJohannes Berg SCD_QUEUE_CONFIG_CMD); 352227f2597SJohannes Berg struct iwl_scd_queue_cfg_cmd remove_cmd = { 353227f2597SJohannes Berg .operation = cpu_to_le32(IWL_SCD_QUEUE_REMOVE), 354c5a976cfSJohannes Berg .u.remove.tid = cpu_to_le32(tid), 355c5a976cfSJohannes Berg .u.remove.sta_mask = cpu_to_le32(BIT(sta_id)), 356227f2597SJohannes Berg }; 357227f2597SJohannes Berg 358227f2597SJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, 359227f2597SJohannes Berg sizeof(remove_cmd), 360227f2597SJohannes Berg &remove_cmd); 361227f2597SJohannes Berg } else { 362227f2597SJohannes Berg ret = 0; 363227f2597SJohannes Berg } 364227f2597SJohannes Berg 36599448a8cSJohannes Berg iwl_trans_txq_free(mvm->trans, queue); 366c6ce1c74SJohannes Berg *queueptr = IWL_MVM_INVALID_QUEUE; 36799448a8cSJohannes Berg 368227f2597SJohannes Berg return ret; 36999448a8cSJohannes Berg } 37099448a8cSJohannes Berg 371f3f240f9SJohannes Berg if (WARN_ON(mvm->queue_info[queue].tid_bitmap == 0)) 37299448a8cSJohannes Berg return 0; 37399448a8cSJohannes Berg 37499448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 37599448a8cSJohannes Berg 3761c14089eSJohannes Berg cmd.action = mvm->queue_info[queue].tid_bitmap ? 37799448a8cSJohannes Berg SCD_CFG_ENABLE_QUEUE : SCD_CFG_DISABLE_QUEUE; 37899448a8cSJohannes Berg if (cmd.action == SCD_CFG_DISABLE_QUEUE) 37999448a8cSJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_FREE; 38099448a8cSJohannes Berg 38199448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 382cfbc6c4cSSara Sharon "Disabling TXQ #%d tids=0x%x\n", 38399448a8cSJohannes Berg queue, 384cfbc6c4cSSara Sharon mvm->queue_info[queue].tid_bitmap); 38599448a8cSJohannes Berg 38699448a8cSJohannes Berg /* If the queue is still enabled - nothing left to do in this func */ 387f3f240f9SJohannes Berg if (cmd.action == SCD_CFG_ENABLE_QUEUE) 38899448a8cSJohannes Berg return 0; 38999448a8cSJohannes Berg 39099448a8cSJohannes Berg cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 39199448a8cSJohannes Berg cmd.tid = mvm->queue_info[queue].txq_tid; 39299448a8cSJohannes Berg 39399448a8cSJohannes Berg /* Make sure queue info is correct even though we overwrite it */ 394cfbc6c4cSSara Sharon WARN(mvm->queue_info[queue].tid_bitmap, 395cfbc6c4cSSara Sharon "TXQ #%d info out-of-sync - tids=0x%x\n", 396cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 39799448a8cSJohannes Berg 39899448a8cSJohannes Berg /* If we are here - the queue is freed and we can zero out these vals */ 39999448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap = 0; 400cfbc6c4cSSara Sharon 401cfbc6c4cSSara Sharon if (sta) { 402cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 403cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 404cfbc6c4cSSara Sharon 405cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 40695b0f666SJose Ignacio Tornos Martinez list_del_init(&mvmtxq->list); 407cfbc6c4cSSara Sharon } 40899448a8cSJohannes Berg 40999448a8cSJohannes Berg /* Regardless if this is a reserved TXQ for a STA - mark it as false */ 41099448a8cSJohannes Berg mvm->queue_info[queue].reserved = false; 41199448a8cSJohannes Berg 41299448a8cSJohannes Berg iwl_trans_txq_disable(mvm->trans, queue, false); 41364ff7eb0SJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, 41499448a8cSJohannes Berg sizeof(struct iwl_scd_txq_cfg_cmd), &cmd); 41599448a8cSJohannes Berg 41699448a8cSJohannes Berg if (ret) 41799448a8cSJohannes Berg IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n", 41899448a8cSJohannes Berg queue, ret); 41999448a8cSJohannes Berg return ret; 42099448a8cSJohannes Berg } 42199448a8cSJohannes Berg 42242db09c1SLiad Kaufman static int iwl_mvm_get_queue_agg_tids(struct iwl_mvm *mvm, int queue) 42342db09c1SLiad Kaufman { 42442db09c1SLiad Kaufman struct ieee80211_sta *sta; 42542db09c1SLiad Kaufman struct iwl_mvm_sta *mvmsta; 42642db09c1SLiad Kaufman unsigned long tid_bitmap; 42742db09c1SLiad Kaufman unsigned long agg_tids = 0; 428806911daSSharon Dvir u8 sta_id; 42942db09c1SLiad Kaufman int tid; 43042db09c1SLiad Kaufman 43142db09c1SLiad Kaufman lockdep_assert_held(&mvm->mutex); 43242db09c1SLiad Kaufman 433bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 434bb49701bSSara Sharon return -EINVAL; 435bb49701bSSara Sharon 43642db09c1SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 43742db09c1SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 43842db09c1SLiad Kaufman 43942db09c1SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 44042db09c1SLiad Kaufman lockdep_is_held(&mvm->mutex)); 44142db09c1SLiad Kaufman 44242db09c1SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 44342db09c1SLiad Kaufman return -EINVAL; 44442db09c1SLiad Kaufman 44542db09c1SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 44642db09c1SLiad Kaufman 44742db09c1SLiad Kaufman spin_lock_bh(&mvmsta->lock); 44842db09c1SLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 44942db09c1SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 45042db09c1SLiad Kaufman agg_tids |= BIT(tid); 45142db09c1SLiad Kaufman } 45242db09c1SLiad Kaufman spin_unlock_bh(&mvmsta->lock); 45342db09c1SLiad Kaufman 45442db09c1SLiad Kaufman return agg_tids; 45542db09c1SLiad Kaufman } 45642db09c1SLiad Kaufman 4579794c64fSLiad Kaufman /* 4589794c64fSLiad Kaufman * Remove a queue from a station's resources. 4599794c64fSLiad Kaufman * Note that this only marks as free. It DOESN'T delete a BA agreement, and 4609794c64fSLiad Kaufman * doesn't disable the queue 4619794c64fSLiad Kaufman */ 4629794c64fSLiad Kaufman static int iwl_mvm_remove_sta_queue_marking(struct iwl_mvm *mvm, int queue) 4639794c64fSLiad Kaufman { 4649794c64fSLiad Kaufman struct ieee80211_sta *sta; 4659794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 4669794c64fSLiad Kaufman unsigned long tid_bitmap; 4679794c64fSLiad Kaufman unsigned long disable_agg_tids = 0; 4689794c64fSLiad Kaufman u8 sta_id; 4699794c64fSLiad Kaufman int tid; 4709794c64fSLiad Kaufman 4719794c64fSLiad Kaufman lockdep_assert_held(&mvm->mutex); 4729794c64fSLiad Kaufman 473bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 474bb49701bSSara Sharon return -EINVAL; 475bb49701bSSara Sharon 4769794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 4779794c64fSLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 4789794c64fSLiad Kaufman 4799794c64fSLiad Kaufman rcu_read_lock(); 4809794c64fSLiad Kaufman 4819794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 4829794c64fSLiad Kaufman 4839794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 4849794c64fSLiad Kaufman rcu_read_unlock(); 4859794c64fSLiad Kaufman return 0; 4869794c64fSLiad Kaufman } 4879794c64fSLiad Kaufman 4889794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 4899794c64fSLiad Kaufman 4909794c64fSLiad Kaufman spin_lock_bh(&mvmsta->lock); 49142db09c1SLiad Kaufman /* Unmap MAC queues and TIDs from this queue */ 4929794c64fSLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 493cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 494cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 495cfbc6c4cSSara Sharon 4969794c64fSLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 4979794c64fSLiad Kaufman disable_agg_tids |= BIT(tid); 4986862fceeSSara Sharon mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 499cfbc6c4cSSara Sharon 500cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 50195b0f666SJose Ignacio Tornos Martinez list_del_init(&mvmtxq->list); 5029794c64fSLiad Kaufman } 5039794c64fSLiad Kaufman 50442db09c1SLiad Kaufman mvmsta->tfd_queue_msk &= ~BIT(queue); /* Don't use this queue anymore */ 5059794c64fSLiad Kaufman spin_unlock_bh(&mvmsta->lock); 5069794c64fSLiad Kaufman 5079794c64fSLiad Kaufman rcu_read_unlock(); 5089794c64fSLiad Kaufman 50906bc6f6eSJohannes Berg /* 51006bc6f6eSJohannes Berg * The TX path may have been using this TXQ_ID from the tid_data, 51106bc6f6eSJohannes Berg * so make sure it's no longer running so that we can safely reuse 51206bc6f6eSJohannes Berg * this TXQ later. We've set all the TIDs to IWL_MVM_INVALID_QUEUE 51306bc6f6eSJohannes Berg * above, but nothing guarantees we've stopped using them. Thus, 51406bc6f6eSJohannes Berg * without this, we could get to iwl_mvm_disable_txq() and remove 51506bc6f6eSJohannes Berg * the queue while still sending frames to it. 51606bc6f6eSJohannes Berg */ 51706bc6f6eSJohannes Berg synchronize_net(); 51806bc6f6eSJohannes Berg 5199794c64fSLiad Kaufman return disable_agg_tids; 5209794c64fSLiad Kaufman } 5219794c64fSLiad Kaufman 52201796ff2SSara Sharon static int iwl_mvm_free_inactive_queue(struct iwl_mvm *mvm, int queue, 523cfbc6c4cSSara Sharon struct ieee80211_sta *old_sta, 524724fe771SJohannes Berg u8 new_sta_id) 52501796ff2SSara Sharon { 52601796ff2SSara Sharon struct iwl_mvm_sta *mvmsta; 527cfbc6c4cSSara Sharon u8 sta_id, tid; 52801796ff2SSara Sharon unsigned long disable_agg_tids = 0; 529724fe771SJohannes Berg bool same_sta; 530c6ce1c74SJohannes Berg u16 queue_tmp = queue; 53101796ff2SSara Sharon int ret; 53201796ff2SSara Sharon 53301796ff2SSara Sharon lockdep_assert_held(&mvm->mutex); 53401796ff2SSara Sharon 535bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 536bb49701bSSara Sharon return -EINVAL; 537bb49701bSSara Sharon 53801796ff2SSara Sharon sta_id = mvm->queue_info[queue].ra_sta_id; 53901796ff2SSara Sharon tid = mvm->queue_info[queue].txq_tid; 54001796ff2SSara Sharon 541724fe771SJohannes Berg same_sta = sta_id == new_sta_id; 542724fe771SJohannes Berg 54301796ff2SSara Sharon mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 544e3df1e4bSSharon Dvir if (WARN_ON(!mvmsta)) 545e3df1e4bSSharon Dvir return -EINVAL; 54601796ff2SSara Sharon 54701796ff2SSara Sharon disable_agg_tids = iwl_mvm_remove_sta_queue_marking(mvm, queue); 54801796ff2SSara Sharon /* Disable the queue */ 54901796ff2SSara Sharon if (disable_agg_tids) 55001796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 55101796ff2SSara Sharon disable_agg_tids, false); 55201796ff2SSara Sharon 553c5a976cfSJohannes Berg ret = iwl_mvm_disable_txq(mvm, old_sta, sta_id, &queue_tmp, tid); 55401796ff2SSara Sharon if (ret) { 55501796ff2SSara Sharon IWL_ERR(mvm, 55601796ff2SSara Sharon "Failed to free inactive queue %d (ret=%d)\n", 55701796ff2SSara Sharon queue, ret); 55801796ff2SSara Sharon 55901796ff2SSara Sharon return ret; 56001796ff2SSara Sharon } 56101796ff2SSara Sharon 56201796ff2SSara Sharon /* If TXQ is allocated to another STA, update removal in FW */ 56301796ff2SSara Sharon if (!same_sta) 56401796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 0, true); 56501796ff2SSara Sharon 56601796ff2SSara Sharon return 0; 56701796ff2SSara Sharon } 56801796ff2SSara Sharon 56942db09c1SLiad Kaufman static int iwl_mvm_get_shared_queue(struct iwl_mvm *mvm, 57042db09c1SLiad Kaufman unsigned long tfd_queue_mask, u8 ac) 57142db09c1SLiad Kaufman { 57242db09c1SLiad Kaufman int queue = 0; 57342db09c1SLiad Kaufman u8 ac_to_queue[IEEE80211_NUM_ACS]; 57442db09c1SLiad Kaufman int i; 57542db09c1SLiad Kaufman 57690d2d94cSJohannes Berg /* 57790d2d94cSJohannes Berg * This protects us against grabbing a queue that's being reconfigured 57890d2d94cSJohannes Berg * by the inactivity checker. 57990d2d94cSJohannes Berg */ 58090d2d94cSJohannes Berg lockdep_assert_held(&mvm->mutex); 58190d2d94cSJohannes Berg 582bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 583bb49701bSSara Sharon return -EINVAL; 58442db09c1SLiad Kaufman 58542db09c1SLiad Kaufman memset(&ac_to_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(ac_to_queue)); 58642db09c1SLiad Kaufman 58742db09c1SLiad Kaufman /* See what ACs the existing queues for this STA have */ 58842db09c1SLiad Kaufman for_each_set_bit(i, &tfd_queue_mask, IWL_MVM_DQA_MAX_DATA_QUEUE) { 58942db09c1SLiad Kaufman /* Only DATA queues can be shared */ 59042db09c1SLiad Kaufman if (i < IWL_MVM_DQA_MIN_DATA_QUEUE && 59142db09c1SLiad Kaufman i != IWL_MVM_DQA_BSS_CLIENT_QUEUE) 59242db09c1SLiad Kaufman continue; 59342db09c1SLiad Kaufman 59442db09c1SLiad Kaufman ac_to_queue[mvm->queue_info[i].mac80211_ac] = i; 59542db09c1SLiad Kaufman } 59642db09c1SLiad Kaufman 59742db09c1SLiad Kaufman /* 59842db09c1SLiad Kaufman * The queue to share is chosen only from DATA queues as follows (in 59942db09c1SLiad Kaufman * descending priority): 60042db09c1SLiad Kaufman * 1. An AC_BE queue 60142db09c1SLiad Kaufman * 2. Same AC queue 60242db09c1SLiad Kaufman * 3. Highest AC queue that is lower than new AC 60342db09c1SLiad Kaufman * 4. Any existing AC (there always is at least 1 DATA queue) 60442db09c1SLiad Kaufman */ 60542db09c1SLiad Kaufman 60642db09c1SLiad Kaufman /* Priority 1: An AC_BE queue */ 60742db09c1SLiad Kaufman if (ac_to_queue[IEEE80211_AC_BE] != IEEE80211_INVAL_HW_QUEUE) 60842db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BE]; 60942db09c1SLiad Kaufman /* Priority 2: Same AC queue */ 61042db09c1SLiad Kaufman else if (ac_to_queue[ac] != IEEE80211_INVAL_HW_QUEUE) 61142db09c1SLiad Kaufman queue = ac_to_queue[ac]; 61242db09c1SLiad Kaufman /* Priority 3a: If new AC is VO and VI exists - use VI */ 61342db09c1SLiad Kaufman else if (ac == IEEE80211_AC_VO && 61442db09c1SLiad Kaufman ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 61542db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 61642db09c1SLiad Kaufman /* Priority 3b: No BE so only AC less than the new one is BK */ 61742db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_BK] != IEEE80211_INVAL_HW_QUEUE) 61842db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BK]; 61942db09c1SLiad Kaufman /* Priority 4a: No BE nor BK - use VI if exists */ 62042db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 62142db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 62242db09c1SLiad Kaufman /* Priority 4b: No BE, BK nor VI - use VO if exists */ 62342db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VO] != IEEE80211_INVAL_HW_QUEUE) 62442db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VO]; 62542db09c1SLiad Kaufman 62642db09c1SLiad Kaufman /* Make sure queue found (or not) is legal */ 6279f9af3d7SLiad Kaufman if (!iwl_mvm_is_dqa_data_queue(mvm, queue) && 6289f9af3d7SLiad Kaufman !iwl_mvm_is_dqa_mgmt_queue(mvm, queue) && 6299f9af3d7SLiad Kaufman (queue != IWL_MVM_DQA_BSS_CLIENT_QUEUE)) { 63042db09c1SLiad Kaufman IWL_ERR(mvm, "No DATA queues available to share\n"); 6319f9af3d7SLiad Kaufman return -ENOSPC; 6329f9af3d7SLiad Kaufman } 6339f9af3d7SLiad Kaufman 63442db09c1SLiad Kaufman return queue; 63542db09c1SLiad Kaufman } 63642db09c1SLiad Kaufman 637a54844d4SJohannes Berg /* Re-configure the SCD for a queue that has already been configured */ 638a54844d4SJohannes Berg static int iwl_mvm_reconfig_scd(struct iwl_mvm *mvm, int queue, int fifo, 639a54844d4SJohannes Berg int sta_id, int tid, int frame_limit, u16 ssn) 640a54844d4SJohannes Berg { 641a54844d4SJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 642a54844d4SJohannes Berg .scd_queue = queue, 643a54844d4SJohannes Berg .action = SCD_CFG_ENABLE_QUEUE, 644a54844d4SJohannes Berg .window = frame_limit, 645a54844d4SJohannes Berg .sta_id = sta_id, 646a54844d4SJohannes Berg .ssn = cpu_to_le16(ssn), 647a54844d4SJohannes Berg .tx_fifo = fifo, 648a54844d4SJohannes Berg .aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 649a54844d4SJohannes Berg queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE), 650a54844d4SJohannes Berg .tid = tid, 651a54844d4SJohannes Berg }; 652a54844d4SJohannes Berg int ret; 653a54844d4SJohannes Berg 654a54844d4SJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 655a54844d4SJohannes Berg return -EINVAL; 656a54844d4SJohannes Berg 657a54844d4SJohannes Berg if (WARN(mvm->queue_info[queue].tid_bitmap == 0, 658a54844d4SJohannes Berg "Trying to reconfig unallocated queue %d\n", queue)) 659a54844d4SJohannes Berg return -ENXIO; 660a54844d4SJohannes Berg 661a54844d4SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Reconfig SCD for TXQ #%d\n", queue); 662a54844d4SJohannes Berg 663a54844d4SJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 664a54844d4SJohannes Berg WARN_ONCE(ret, "Failed to re-configure queue %d on FIFO %d, ret=%d\n", 665a54844d4SJohannes Berg queue, fifo, ret); 666a54844d4SJohannes Berg 667a54844d4SJohannes Berg return ret; 668a54844d4SJohannes Berg } 669a54844d4SJohannes Berg 67058f2cc57SLiad Kaufman /* 6719f9af3d7SLiad Kaufman * If a given queue has a higher AC than the TID stream that is being compared 6729f9af3d7SLiad Kaufman * to, the queue needs to be redirected to the lower AC. This function does that 67358f2cc57SLiad Kaufman * in such a case, otherwise - if no redirection required - it does nothing, 67458f2cc57SLiad Kaufman * unless the %force param is true. 67558f2cc57SLiad Kaufman */ 676cfbc6c4cSSara Sharon static int iwl_mvm_redirect_queue(struct iwl_mvm *mvm, int queue, int tid, 67758f2cc57SLiad Kaufman int ac, int ssn, unsigned int wdg_timeout, 678cfbc6c4cSSara Sharon bool force, struct iwl_mvm_txq *txq) 67958f2cc57SLiad Kaufman { 68058f2cc57SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 68158f2cc57SLiad Kaufman .scd_queue = queue, 682f7c692deSLiad Kaufman .action = SCD_CFG_DISABLE_QUEUE, 68358f2cc57SLiad Kaufman }; 68458f2cc57SLiad Kaufman bool shared_queue; 68558f2cc57SLiad Kaufman int ret; 68658f2cc57SLiad Kaufman 687bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 688bb49701bSSara Sharon return -EINVAL; 689bb49701bSSara Sharon 69058f2cc57SLiad Kaufman /* 69158f2cc57SLiad Kaufman * If the AC is lower than current one - FIFO needs to be redirected to 69258f2cc57SLiad Kaufman * the lowest one of the streams in the queue. Check if this is needed 69358f2cc57SLiad Kaufman * here. 69458f2cc57SLiad Kaufman * Notice that the enum ieee80211_ac_numbers is "flipped", so BK is with 69558f2cc57SLiad Kaufman * value 3 and VO with value 0, so to check if ac X is lower than ac Y 69658f2cc57SLiad Kaufman * we need to check if the numerical value of X is LARGER than of Y. 69758f2cc57SLiad Kaufman */ 69858f2cc57SLiad Kaufman if (ac <= mvm->queue_info[queue].mac80211_ac && !force) { 69958f2cc57SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 70058f2cc57SLiad Kaufman "No redirection needed on TXQ #%d\n", 70158f2cc57SLiad Kaufman queue); 70258f2cc57SLiad Kaufman return 0; 70358f2cc57SLiad Kaufman } 70458f2cc57SLiad Kaufman 70558f2cc57SLiad Kaufman cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 70658f2cc57SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[mvm->queue_info[queue].mac80211_ac]; 707edbe961cSLiad Kaufman cmd.tid = mvm->queue_info[queue].txq_tid; 7081c14089eSJohannes Berg shared_queue = hweight16(mvm->queue_info[queue].tid_bitmap) > 1; 70958f2cc57SLiad Kaufman 7109f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Redirecting TXQ #%d to FIFO #%d\n", 71158f2cc57SLiad Kaufman queue, iwl_mvm_ac_to_tx_fifo[ac]); 71258f2cc57SLiad Kaufman 713cfbc6c4cSSara Sharon /* Stop the queue and wait for it to empty */ 714cfbc6c4cSSara Sharon txq->stopped = true; 715cfbc6c4cSSara Sharon 716a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(queue)); 71758f2cc57SLiad Kaufman if (ret) { 71858f2cc57SLiad Kaufman IWL_ERR(mvm, "Error draining queue %d before reconfig\n", 71958f2cc57SLiad Kaufman queue); 72058f2cc57SLiad Kaufman ret = -EIO; 72158f2cc57SLiad Kaufman goto out; 72258f2cc57SLiad Kaufman } 72358f2cc57SLiad Kaufman 72458f2cc57SLiad Kaufman /* Before redirecting the queue we need to de-activate it */ 72558f2cc57SLiad Kaufman iwl_trans_txq_disable(mvm->trans, queue, false); 72658f2cc57SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 72758f2cc57SLiad Kaufman if (ret) 72858f2cc57SLiad Kaufman IWL_ERR(mvm, "Failed SCD disable TXQ %d (ret=%d)\n", queue, 72958f2cc57SLiad Kaufman ret); 73058f2cc57SLiad Kaufman 73158f2cc57SLiad Kaufman /* Make sure the SCD wrptr is correctly set before reconfiguring */ 732ca3b9c6bSSara Sharon iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, wdg_timeout); 73358f2cc57SLiad Kaufman 734edbe961cSLiad Kaufman /* Update the TID "owner" of the queue */ 735edbe961cSLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 736edbe961cSLiad Kaufman 73758f2cc57SLiad Kaufman /* TODO: Work-around SCD bug when moving back by multiples of 0x40 */ 73858f2cc57SLiad Kaufman 73958f2cc57SLiad Kaufman /* Redirect to lower AC */ 74058f2cc57SLiad Kaufman iwl_mvm_reconfig_scd(mvm, queue, iwl_mvm_ac_to_tx_fifo[ac], 7410ec9257bSSara Sharon cmd.sta_id, tid, IWL_FRAME_LIMIT, ssn); 74258f2cc57SLiad Kaufman 74358f2cc57SLiad Kaufman /* Update AC marking of the queue */ 74458f2cc57SLiad Kaufman mvm->queue_info[queue].mac80211_ac = ac; 74558f2cc57SLiad Kaufman 74658f2cc57SLiad Kaufman /* 74758f2cc57SLiad Kaufman * Mark queue as shared in transport if shared 74858f2cc57SLiad Kaufman * Note this has to be done after queue enablement because enablement 74958f2cc57SLiad Kaufman * can also set this value, and there is no indication there to shared 75058f2cc57SLiad Kaufman * queues 75158f2cc57SLiad Kaufman */ 75258f2cc57SLiad Kaufman if (shared_queue) 75358f2cc57SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 75458f2cc57SLiad Kaufman 75558f2cc57SLiad Kaufman out: 756cfbc6c4cSSara Sharon /* Continue using the queue */ 757cfbc6c4cSSara Sharon txq->stopped = false; 75858f2cc57SLiad Kaufman 75958f2cc57SLiad Kaufman return ret; 76058f2cc57SLiad Kaufman } 76158f2cc57SLiad Kaufman 76299448a8cSJohannes Berg static int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 sta_id, 76399448a8cSJohannes Berg u8 minq, u8 maxq) 76499448a8cSJohannes Berg { 76599448a8cSJohannes Berg int i; 76699448a8cSJohannes Berg 767f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 76899448a8cSJohannes Berg 769e5b72e3bSJohannes Berg if (WARN(maxq >= mvm->trans->trans_cfg->base_params->num_of_queues, 770e5b72e3bSJohannes Berg "max queue %d >= num_of_queues (%d)", maxq, 771e5b72e3bSJohannes Berg mvm->trans->trans_cfg->base_params->num_of_queues)) 772e5b72e3bSJohannes Berg maxq = mvm->trans->trans_cfg->base_params->num_of_queues - 1; 773e5b72e3bSJohannes Berg 77499448a8cSJohannes Berg /* This should not be hit with new TX path */ 77599448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 77699448a8cSJohannes Berg return -ENOSPC; 77799448a8cSJohannes Berg 77899448a8cSJohannes Berg /* Start by looking for a free queue */ 77999448a8cSJohannes Berg for (i = minq; i <= maxq; i++) 7801c14089eSJohannes Berg if (mvm->queue_info[i].tid_bitmap == 0 && 78199448a8cSJohannes Berg mvm->queue_info[i].status == IWL_MVM_QUEUE_FREE) 78299448a8cSJohannes Berg return i; 78399448a8cSJohannes Berg 78499448a8cSJohannes Berg return -ENOSPC; 78599448a8cSJohannes Berg } 78699448a8cSJohannes Berg 78709369983SJohannes Berg static int iwl_mvm_get_queue_size(struct ieee80211_sta *sta) 78809369983SJohannes Berg { 78909369983SJohannes Berg /* this queue isn't used for traffic (cab_queue) */ 79009369983SJohannes Berg if (!sta) 79109369983SJohannes Berg return IWL_MGMT_QUEUE_SIZE; 79209369983SJohannes Berg 79309369983SJohannes Berg /* support for 1k ba size */ 79409369983SJohannes Berg if (sta->deflink.eht_cap.has_eht) 79509369983SJohannes Berg return IWL_DEFAULT_QUEUE_SIZE_EHT; 79609369983SJohannes Berg 79709369983SJohannes Berg /* support for 256 ba size */ 79809369983SJohannes Berg if (sta->deflink.he_cap.has_he) 79909369983SJohannes Berg return IWL_DEFAULT_QUEUE_SIZE_HE; 80009369983SJohannes Berg 80109369983SJohannes Berg return IWL_DEFAULT_QUEUE_SIZE; 80209369983SJohannes Berg } 80309369983SJohannes Berg 804006c152aSMiri Korenblit int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm, 80509369983SJohannes Berg struct ieee80211_sta *sta, 80699448a8cSJohannes Berg u8 sta_id, u8 tid, unsigned int timeout) 80799448a8cSJohannes Berg { 808d5399f11SMordechay Goodstein int queue, size; 80999448a8cSJohannes Berg 81099448a8cSJohannes Berg if (tid == IWL_MAX_TID_COUNT) { 81199448a8cSJohannes Berg tid = IWL_MGMT_TID; 812ff911dcaSShaul Triebitz size = max_t(u32, IWL_MGMT_QUEUE_SIZE, 813ff911dcaSShaul Triebitz mvm->trans->cfg->min_txq_size); 814d5399f11SMordechay Goodstein } else { 81509369983SJohannes Berg size = iwl_mvm_get_queue_size(sta); 816d5399f11SMordechay Goodstein } 817d5399f11SMordechay Goodstein 818d5399f11SMordechay Goodstein /* take the min with bc tbl entries allowed */ 819d5399f11SMordechay Goodstein size = min_t(u32, size, mvm->trans->txqs.bc_tbl_size / sizeof(u16)); 820d5399f11SMordechay Goodstein 821d5399f11SMordechay Goodstein /* size needs to be power of 2 values for calculating read/write pointers */ 822d5399f11SMordechay Goodstein size = rounddown_pow_of_two(size); 823d5399f11SMordechay Goodstein 82492f78d4bSJohannes Berg do { 825227f2597SJohannes Berg queue = iwl_trans_txq_alloc(mvm->trans, 0, BIT(sta_id), 82685b17a33SJohannes Berg tid, size, timeout); 82792f78d4bSJohannes Berg 82892f78d4bSJohannes Berg if (queue < 0) 82999448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 83092f78d4bSJohannes Berg "Failed allocating TXQ of size %d for sta %d tid %d, ret: %d\n", 83192f78d4bSJohannes Berg size, sta_id, tid, queue); 83292f78d4bSJohannes Berg size /= 2; 83392f78d4bSJohannes Berg } while (queue < 0 && size >= 16); 83492f78d4bSJohannes Berg 83592f78d4bSJohannes Berg if (queue < 0) 83699448a8cSJohannes Berg return queue; 83799448a8cSJohannes Berg 83899448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Enabling TXQ #%d for sta %d tid %d\n", 83999448a8cSJohannes Berg queue, sta_id, tid); 84099448a8cSJohannes Berg 84199448a8cSJohannes Berg return queue; 84299448a8cSJohannes Berg } 84399448a8cSJohannes Berg 844310181ecSSara Sharon static int iwl_mvm_sta_alloc_queue_tvqm(struct iwl_mvm *mvm, 845310181ecSSara Sharon struct ieee80211_sta *sta, u8 ac, 846310181ecSSara Sharon int tid) 847310181ecSSara Sharon { 848310181ecSSara Sharon struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 849cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 850cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 851310181ecSSara Sharon unsigned int wdg_timeout = 852310181ecSSara Sharon iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 853310181ecSSara Sharon int queue = -1; 854310181ecSSara Sharon 855310181ecSSara Sharon lockdep_assert_held(&mvm->mutex); 856310181ecSSara Sharon 857310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 858310181ecSSara Sharon "Allocating queue for sta %d on tid %d\n", 859*c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid); 860*c8ee33e1SGregory Greenman queue = iwl_mvm_tvqm_enable_txq(mvm, sta, mvmsta->deflink.sta_id, 86109369983SJohannes Berg tid, wdg_timeout); 862310181ecSSara Sharon if (queue < 0) 863310181ecSSara Sharon return queue; 864310181ecSSara Sharon 865cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 866cfbc6c4cSSara Sharon mvm->tvqm_info[queue].txq_tid = tid; 867*c8ee33e1SGregory Greenman mvm->tvqm_info[queue].sta_id = mvmsta->deflink.sta_id; 868cfbc6c4cSSara Sharon 869310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, "Allocated queue is %d\n", queue); 870310181ecSSara Sharon 871310181ecSSara Sharon spin_lock_bh(&mvmsta->lock); 872310181ecSSara Sharon mvmsta->tid_data[tid].txq_id = queue; 873310181ecSSara Sharon spin_unlock_bh(&mvmsta->lock); 874310181ecSSara Sharon 875310181ecSSara Sharon return 0; 876310181ecSSara Sharon } 877310181ecSSara Sharon 878cfbc6c4cSSara Sharon static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, 879cfbc6c4cSSara Sharon struct ieee80211_sta *sta, 880cfbc6c4cSSara Sharon int queue, u8 sta_id, u8 tid) 88199448a8cSJohannes Berg { 88299448a8cSJohannes Berg bool enable_queue = true; 88399448a8cSJohannes Berg 88499448a8cSJohannes Berg /* Make sure this TID isn't already enabled */ 88599448a8cSJohannes Berg if (mvm->queue_info[queue].tid_bitmap & BIT(tid)) { 88699448a8cSJohannes Berg IWL_ERR(mvm, "Trying to enable TXQ %d with existing TID %d\n", 88799448a8cSJohannes Berg queue, tid); 88899448a8cSJohannes Berg return false; 88999448a8cSJohannes Berg } 89099448a8cSJohannes Berg 89199448a8cSJohannes Berg /* Update mappings and refcounts */ 8921c14089eSJohannes Berg if (mvm->queue_info[queue].tid_bitmap) 89399448a8cSJohannes Berg enable_queue = false; 89499448a8cSJohannes Berg 89599448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap |= BIT(tid); 89699448a8cSJohannes Berg mvm->queue_info[queue].ra_sta_id = sta_id; 89799448a8cSJohannes Berg 89899448a8cSJohannes Berg if (enable_queue) { 89999448a8cSJohannes Berg if (tid != IWL_MAX_TID_COUNT) 90099448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = 90199448a8cSJohannes Berg tid_to_mac80211_ac[tid]; 90299448a8cSJohannes Berg else 90399448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = IEEE80211_AC_VO; 90499448a8cSJohannes Berg 90599448a8cSJohannes Berg mvm->queue_info[queue].txq_tid = tid; 90699448a8cSJohannes Berg } 90799448a8cSJohannes Berg 908cfbc6c4cSSara Sharon if (sta) { 909cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 910cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 911cfbc6c4cSSara Sharon 912cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 913cfbc6c4cSSara Sharon } 914cfbc6c4cSSara Sharon 91599448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 916cfbc6c4cSSara Sharon "Enabling TXQ #%d tids=0x%x\n", 917cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 91899448a8cSJohannes Berg 91999448a8cSJohannes Berg return enable_queue; 92099448a8cSJohannes Berg } 92199448a8cSJohannes Berg 922cfbc6c4cSSara Sharon static bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 923cfbc6c4cSSara Sharon int queue, u16 ssn, 92499448a8cSJohannes Berg const struct iwl_trans_txq_scd_cfg *cfg, 92599448a8cSJohannes Berg unsigned int wdg_timeout) 92699448a8cSJohannes Berg { 92799448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 92899448a8cSJohannes Berg .scd_queue = queue, 92999448a8cSJohannes Berg .action = SCD_CFG_ENABLE_QUEUE, 93099448a8cSJohannes Berg .window = cfg->frame_limit, 93199448a8cSJohannes Berg .sta_id = cfg->sta_id, 93299448a8cSJohannes Berg .ssn = cpu_to_le16(ssn), 93399448a8cSJohannes Berg .tx_fifo = cfg->fifo, 93499448a8cSJohannes Berg .aggregate = cfg->aggregate, 93599448a8cSJohannes Berg .tid = cfg->tid, 93699448a8cSJohannes Berg }; 93799448a8cSJohannes Berg bool inc_ssn; 93899448a8cSJohannes Berg 93999448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 94099448a8cSJohannes Berg return false; 94199448a8cSJohannes Berg 94299448a8cSJohannes Berg /* Send the enabling command if we need to */ 943cfbc6c4cSSara Sharon if (!iwl_mvm_update_txq_mapping(mvm, sta, queue, cfg->sta_id, cfg->tid)) 94499448a8cSJohannes Berg return false; 94599448a8cSJohannes Berg 94699448a8cSJohannes Berg inc_ssn = iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, 94799448a8cSJohannes Berg NULL, wdg_timeout); 94899448a8cSJohannes Berg if (inc_ssn) 94999448a8cSJohannes Berg le16_add_cpu(&cmd.ssn, 1); 95099448a8cSJohannes Berg 95199448a8cSJohannes Berg WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd), 95299448a8cSJohannes Berg "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo); 95399448a8cSJohannes Berg 95499448a8cSJohannes Berg return inc_ssn; 95599448a8cSJohannes Berg } 95699448a8cSJohannes Berg 957b3a87f11SJohannes Berg static void iwl_mvm_change_queue_tid(struct iwl_mvm *mvm, int queue) 95819aefa45SLiad Kaufman { 95919aefa45SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 96019aefa45SLiad Kaufman .scd_queue = queue, 96119aefa45SLiad Kaufman .action = SCD_CFG_UPDATE_QUEUE_TID, 96219aefa45SLiad Kaufman }; 96319aefa45SLiad Kaufman int tid; 96419aefa45SLiad Kaufman unsigned long tid_bitmap; 96519aefa45SLiad Kaufman int ret; 96619aefa45SLiad Kaufman 96719aefa45SLiad Kaufman lockdep_assert_held(&mvm->mutex); 96819aefa45SLiad Kaufman 969bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 970bb49701bSSara Sharon return; 971bb49701bSSara Sharon 97219aefa45SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 97319aefa45SLiad Kaufman 97419aefa45SLiad Kaufman if (WARN(!tid_bitmap, "TXQ %d has no tids assigned to it\n", queue)) 97519aefa45SLiad Kaufman return; 97619aefa45SLiad Kaufman 97719aefa45SLiad Kaufman /* Find any TID for queue */ 97819aefa45SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 97919aefa45SLiad Kaufman cmd.tid = tid; 98019aefa45SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 98119aefa45SLiad Kaufman 98219aefa45SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 983341ca402SLiad Kaufman if (ret) { 98419aefa45SLiad Kaufman IWL_ERR(mvm, "Failed to update owner of TXQ %d (ret=%d)\n", 98519aefa45SLiad Kaufman queue, ret); 986341ca402SLiad Kaufman return; 987341ca402SLiad Kaufman } 988341ca402SLiad Kaufman 989341ca402SLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 99019aefa45SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Changed TXQ %d ownership to tid %d\n", 99119aefa45SLiad Kaufman queue, tid); 99219aefa45SLiad Kaufman } 99319aefa45SLiad Kaufman 9949f9af3d7SLiad Kaufman static void iwl_mvm_unshare_queue(struct iwl_mvm *mvm, int queue) 9959f9af3d7SLiad Kaufman { 9969f9af3d7SLiad Kaufman struct ieee80211_sta *sta; 9979f9af3d7SLiad Kaufman struct iwl_mvm_sta *mvmsta; 998806911daSSharon Dvir u8 sta_id; 9999f9af3d7SLiad Kaufman int tid = -1; 10009f9af3d7SLiad Kaufman unsigned long tid_bitmap; 10019f9af3d7SLiad Kaufman unsigned int wdg_timeout; 10029f9af3d7SLiad Kaufman int ssn; 10039f9af3d7SLiad Kaufman int ret = true; 10049f9af3d7SLiad Kaufman 1005bb49701bSSara Sharon /* queue sharing is disabled on new TX path */ 1006bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1007bb49701bSSara Sharon return; 1008bb49701bSSara Sharon 10099f9af3d7SLiad Kaufman lockdep_assert_held(&mvm->mutex); 10109f9af3d7SLiad Kaufman 10119f9af3d7SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 10129f9af3d7SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 10139f9af3d7SLiad Kaufman 10149f9af3d7SLiad Kaufman /* Find TID for queue, and make sure it is the only one on the queue */ 10159f9af3d7SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 10169f9af3d7SLiad Kaufman if (tid_bitmap != BIT(tid)) { 10179f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to unshare q %d, active tids=0x%lx\n", 10189f9af3d7SLiad Kaufman queue, tid_bitmap); 10199f9af3d7SLiad Kaufman return; 10209f9af3d7SLiad Kaufman } 10219f9af3d7SLiad Kaufman 10229f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Unsharing TXQ %d, keeping tid %d\n", queue, 10239f9af3d7SLiad Kaufman tid); 10249f9af3d7SLiad Kaufman 10259f9af3d7SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 10269f9af3d7SLiad Kaufman lockdep_is_held(&mvm->mutex)); 10279f9af3d7SLiad Kaufman 10289f9af3d7SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 10299f9af3d7SLiad Kaufman return; 10309f9af3d7SLiad Kaufman 10319f9af3d7SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 10329f9af3d7SLiad Kaufman wdg_timeout = iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 10339f9af3d7SLiad Kaufman 10349f9af3d7SLiad Kaufman ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 10359f9af3d7SLiad Kaufman 1036cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, 10379f9af3d7SLiad Kaufman tid_to_mac80211_ac[tid], ssn, 1038cfbc6c4cSSara Sharon wdg_timeout, true, 1039cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 10409f9af3d7SLiad Kaufman if (ret) { 10419f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to redirect TXQ %d\n", queue); 10429f9af3d7SLiad Kaufman return; 10439f9af3d7SLiad Kaufman } 10449f9af3d7SLiad Kaufman 10459f9af3d7SLiad Kaufman /* If aggs should be turned back on - do it */ 10469f9af3d7SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) { 10479cd70e80SEmmanuel Grumbach struct iwl_mvm_add_sta_cmd cmd = {0}; 10489f9af3d7SLiad Kaufman 10499f9af3d7SLiad Kaufman mvmsta->tid_disable_agg &= ~BIT(tid); 10509f9af3d7SLiad Kaufman 10519f9af3d7SLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 1052*c8ee33e1SGregory Greenman cmd.sta_id = mvmsta->deflink.sta_id; 10539f9af3d7SLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 10549f9af3d7SLiad Kaufman cmd.modify_mask = STA_MODIFY_TID_DISABLE_TX; 10559f9af3d7SLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 10569f9af3d7SLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 10579f9af3d7SLiad Kaufman 10589f9af3d7SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 10599f9af3d7SLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), &cmd); 10609f9af3d7SLiad Kaufman if (!ret) { 10619f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 10629f9af3d7SLiad Kaufman "TXQ #%d is now aggregated again\n", 10639f9af3d7SLiad Kaufman queue); 10649f9af3d7SLiad Kaufman 10659f9af3d7SLiad Kaufman /* Mark queue intenally as aggregating again */ 10669f9af3d7SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, false); 10679f9af3d7SLiad Kaufman } 10689f9af3d7SLiad Kaufman } 10699f9af3d7SLiad Kaufman 10709f9af3d7SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 10719f9af3d7SLiad Kaufman } 10729f9af3d7SLiad Kaufman 107399448a8cSJohannes Berg /* 107499448a8cSJohannes Berg * Remove inactive TIDs of a given queue. 107599448a8cSJohannes Berg * If all queue TIDs are inactive - mark the queue as inactive 107699448a8cSJohannes Berg * If only some the queue TIDs are inactive - unmap them from the queue 1077724fe771SJohannes Berg * 1078724fe771SJohannes Berg * Returns %true if all TIDs were removed and the queue could be reused. 107999448a8cSJohannes Berg */ 1080724fe771SJohannes Berg static bool iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm, 108199448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta, int queue, 108290d2d94cSJohannes Berg unsigned long tid_bitmap, 1083b3a87f11SJohannes Berg unsigned long *unshare_queues, 1084b3a87f11SJohannes Berg unsigned long *changetid_queues) 108599448a8cSJohannes Berg { 1086af3cdfd3SJakub Kicinski unsigned int tid; 108799448a8cSJohannes Berg 108899448a8cSJohannes Berg lockdep_assert_held(&mvmsta->lock); 1089f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 109099448a8cSJohannes Berg 109199448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1092724fe771SJohannes Berg return false; 109399448a8cSJohannes Berg 109499448a8cSJohannes Berg /* Go over all non-active TIDs, incl. IWL_MAX_TID_COUNT (for mgmt) */ 109599448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 109699448a8cSJohannes Berg /* If some TFDs are still queued - don't mark TID as inactive */ 109799448a8cSJohannes Berg if (iwl_mvm_tid_queued(mvm, &mvmsta->tid_data[tid])) 109899448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 109999448a8cSJohannes Berg 110099448a8cSJohannes Berg /* Don't mark as inactive any TID that has an active BA */ 110199448a8cSJohannes Berg if (mvmsta->tid_data[tid].state != IWL_AGG_OFF) 110299448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 110399448a8cSJohannes Berg } 110499448a8cSJohannes Berg 1105724fe771SJohannes Berg /* If all TIDs in the queue are inactive - return it can be reused */ 110699448a8cSJohannes Berg if (tid_bitmap == mvm->queue_info[queue].tid_bitmap) { 1107724fe771SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Queue %d is inactive\n", queue); 1108724fe771SJohannes Berg return true; 110999448a8cSJohannes Berg } 111099448a8cSJohannes Berg 111199448a8cSJohannes Berg /* 111299448a8cSJohannes Berg * If we are here, this is a shared queue and not all TIDs timed-out. 111399448a8cSJohannes Berg * Remove the ones that did. 111499448a8cSJohannes Berg */ 111599448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1116d4530f63SJohannes Berg u16 q_tid_bitmap; 111799448a8cSJohannes Berg 111899448a8cSJohannes Berg mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 111999448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 112099448a8cSJohannes Berg 1121d4530f63SJohannes Berg q_tid_bitmap = mvm->queue_info[queue].tid_bitmap; 1122b3a87f11SJohannes Berg 1123b3a87f11SJohannes Berg /* 1124b3a87f11SJohannes Berg * We need to take into account a situation in which a TXQ was 1125b3a87f11SJohannes Berg * allocated to TID x, and then turned shared by adding TIDs y 1126b3a87f11SJohannes Berg * and z. If TID x becomes inactive and is removed from the TXQ, 1127b3a87f11SJohannes Berg * ownership must be given to one of the remaining TIDs. 1128b3a87f11SJohannes Berg * This is mainly because if TID x continues - a new queue can't 1129b3a87f11SJohannes Berg * be allocated for it as long as it is an owner of another TXQ. 1130b3a87f11SJohannes Berg * 1131b3a87f11SJohannes Berg * Mark this queue in the right bitmap, we'll send the command 1132b3a87f11SJohannes Berg * to the firmware later. 1133b3a87f11SJohannes Berg */ 1134d4530f63SJohannes Berg if (!(q_tid_bitmap & BIT(mvm->queue_info[queue].txq_tid))) 1135b3a87f11SJohannes Berg set_bit(queue, changetid_queues); 1136b3a87f11SJohannes Berg 113799448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 113899448a8cSJohannes Berg "Removing inactive TID %d from shared Q:%d\n", 113999448a8cSJohannes Berg tid, queue); 114099448a8cSJohannes Berg } 114199448a8cSJohannes Berg 114299448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 114399448a8cSJohannes Berg "TXQ #%d left with tid bitmap 0x%x\n", queue, 114499448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap); 114599448a8cSJohannes Berg 114699448a8cSJohannes Berg /* 114799448a8cSJohannes Berg * There may be different TIDs with the same mac queues, so make 114899448a8cSJohannes Berg * sure all TIDs have existing corresponding mac queues enabled 114999448a8cSJohannes Berg */ 115099448a8cSJohannes Berg tid_bitmap = mvm->queue_info[queue].tid_bitmap; 115199448a8cSJohannes Berg 115299448a8cSJohannes Berg /* If the queue is marked as shared - "unshare" it */ 11531c14089eSJohannes Berg if (hweight16(mvm->queue_info[queue].tid_bitmap) == 1 && 115499448a8cSJohannes Berg mvm->queue_info[queue].status == IWL_MVM_QUEUE_SHARED) { 115599448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Marking Q:%d for reconfig\n", 115699448a8cSJohannes Berg queue); 115790d2d94cSJohannes Berg set_bit(queue, unshare_queues); 115899448a8cSJohannes Berg } 1159724fe771SJohannes Berg 1160724fe771SJohannes Berg return false; 116199448a8cSJohannes Berg } 116299448a8cSJohannes Berg 1163724fe771SJohannes Berg /* 1164724fe771SJohannes Berg * Check for inactivity - this includes checking if any queue 1165724fe771SJohannes Berg * can be unshared and finding one (and only one) that can be 1166724fe771SJohannes Berg * reused. 1167724fe771SJohannes Berg * This function is also invoked as a sort of clean-up task, 1168724fe771SJohannes Berg * in which case @alloc_for_sta is IWL_MVM_INVALID_STA. 1169724fe771SJohannes Berg * 1170724fe771SJohannes Berg * Returns the queue number, or -ENOSPC. 1171724fe771SJohannes Berg */ 1172724fe771SJohannes Berg static int iwl_mvm_inactivity_check(struct iwl_mvm *mvm, u8 alloc_for_sta) 117399448a8cSJohannes Berg { 117499448a8cSJohannes Berg unsigned long now = jiffies; 117590d2d94cSJohannes Berg unsigned long unshare_queues = 0; 1176b3a87f11SJohannes Berg unsigned long changetid_queues = 0; 1177724fe771SJohannes Berg int i, ret, free_queue = -ENOSPC; 1178cfbc6c4cSSara Sharon struct ieee80211_sta *queue_owner = NULL; 117999448a8cSJohannes Berg 1180df2a2245SJohannes Berg lockdep_assert_held(&mvm->mutex); 1181df2a2245SJohannes Berg 118299448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1183724fe771SJohannes Berg return -ENOSPC; 118499448a8cSJohannes Berg 118599448a8cSJohannes Berg rcu_read_lock(); 118699448a8cSJohannes Berg 1187459ab045SJohannes Berg /* we skip the CMD queue below by starting at 1 */ 1188459ab045SJohannes Berg BUILD_BUG_ON(IWL_MVM_DQA_CMD_QUEUE != 0); 1189459ab045SJohannes Berg 1190459ab045SJohannes Berg for (i = 1; i < IWL_MAX_HW_QUEUES; i++) { 119199448a8cSJohannes Berg struct ieee80211_sta *sta; 119299448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta; 119399448a8cSJohannes Berg u8 sta_id; 119499448a8cSJohannes Berg int tid; 119599448a8cSJohannes Berg unsigned long inactive_tid_bitmap = 0; 119699448a8cSJohannes Berg unsigned long queue_tid_bitmap; 119799448a8cSJohannes Berg 119899448a8cSJohannes Berg queue_tid_bitmap = mvm->queue_info[i].tid_bitmap; 1199459ab045SJohannes Berg if (!queue_tid_bitmap) 1200459ab045SJohannes Berg continue; 120199448a8cSJohannes Berg 120299448a8cSJohannes Berg /* If TXQ isn't in active use anyway - nothing to do here... */ 120399448a8cSJohannes Berg if (mvm->queue_info[i].status != IWL_MVM_QUEUE_READY && 1204459ab045SJohannes Berg mvm->queue_info[i].status != IWL_MVM_QUEUE_SHARED) 120599448a8cSJohannes Berg continue; 120699448a8cSJohannes Berg 120799448a8cSJohannes Berg /* Check to see if there are inactive TIDs on this queue */ 120899448a8cSJohannes Berg for_each_set_bit(tid, &queue_tid_bitmap, 120999448a8cSJohannes Berg IWL_MAX_TID_COUNT + 1) { 121099448a8cSJohannes Berg if (time_after(mvm->queue_info[i].last_frame_time[tid] + 121199448a8cSJohannes Berg IWL_MVM_DQA_QUEUE_TIMEOUT, now)) 121299448a8cSJohannes Berg continue; 121399448a8cSJohannes Berg 121499448a8cSJohannes Berg inactive_tid_bitmap |= BIT(tid); 121599448a8cSJohannes Berg } 121699448a8cSJohannes Berg 121799448a8cSJohannes Berg /* If all TIDs are active - finish check on this queue */ 121899448a8cSJohannes Berg if (!inactive_tid_bitmap) 121999448a8cSJohannes Berg continue; 122099448a8cSJohannes Berg 122199448a8cSJohannes Berg /* 122299448a8cSJohannes Berg * If we are here - the queue hadn't been served recently and is 122399448a8cSJohannes Berg * in use 122499448a8cSJohannes Berg */ 122599448a8cSJohannes Berg 122699448a8cSJohannes Berg sta_id = mvm->queue_info[i].ra_sta_id; 122799448a8cSJohannes Berg sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 122899448a8cSJohannes Berg 122999448a8cSJohannes Berg /* 123099448a8cSJohannes Berg * If the STA doesn't exist anymore, it isn't an error. It could 123199448a8cSJohannes Berg * be that it was removed since getting the queues, and in this 123299448a8cSJohannes Berg * case it should've inactivated its queues anyway. 123399448a8cSJohannes Berg */ 123499448a8cSJohannes Berg if (IS_ERR_OR_NULL(sta)) 123599448a8cSJohannes Berg continue; 123699448a8cSJohannes Berg 123799448a8cSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 123899448a8cSJohannes Berg 1239f3f240f9SJohannes Berg spin_lock_bh(&mvmsta->lock); 1240724fe771SJohannes Berg ret = iwl_mvm_remove_inactive_tids(mvm, mvmsta, i, 124190d2d94cSJohannes Berg inactive_tid_bitmap, 1242b3a87f11SJohannes Berg &unshare_queues, 1243b3a87f11SJohannes Berg &changetid_queues); 1244e6d419f9SJohannes Berg if (ret && free_queue < 0) { 1245cfbc6c4cSSara Sharon queue_owner = sta; 1246e6d419f9SJohannes Berg free_queue = i; 1247cfbc6c4cSSara Sharon } 1248459ab045SJohannes Berg /* only unlock sta lock - we still need the queue info lock */ 1249f3f240f9SJohannes Berg spin_unlock_bh(&mvmsta->lock); 125099448a8cSJohannes Berg } 125199448a8cSJohannes Berg 1252df2a2245SJohannes Berg 1253df2a2245SJohannes Berg /* Reconfigure queues requiring reconfiguation */ 125490d2d94cSJohannes Berg for_each_set_bit(i, &unshare_queues, IWL_MAX_HW_QUEUES) 125590d2d94cSJohannes Berg iwl_mvm_unshare_queue(mvm, i); 1256b3a87f11SJohannes Berg for_each_set_bit(i, &changetid_queues, IWL_MAX_HW_QUEUES) 1257b3a87f11SJohannes Berg iwl_mvm_change_queue_tid(mvm, i); 1258724fe771SJohannes Berg 1259fbb1461aSJohannes Berg rcu_read_unlock(); 1260fbb1461aSJohannes Berg 1261724fe771SJohannes Berg if (free_queue >= 0 && alloc_for_sta != IWL_MVM_INVALID_STA) { 1262cfbc6c4cSSara Sharon ret = iwl_mvm_free_inactive_queue(mvm, free_queue, queue_owner, 1263724fe771SJohannes Berg alloc_for_sta); 1264fbb1461aSJohannes Berg if (ret) 1265724fe771SJohannes Berg return ret; 1266724fe771SJohannes Berg } 1267724fe771SJohannes Berg 1268724fe771SJohannes Berg return free_queue; 126999448a8cSJohannes Berg } 127099448a8cSJohannes Berg 1271c20e08b0SJohannes Berg static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm, 1272cfbc6c4cSSara Sharon struct ieee80211_sta *sta, u8 ac, int tid) 1273c20e08b0SJohannes Berg { 1274c20e08b0SJohannes Berg struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1275c20e08b0SJohannes Berg struct iwl_trans_txq_scd_cfg cfg = { 1276c20e08b0SJohannes Berg .fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac), 1277*c8ee33e1SGregory Greenman .sta_id = mvmsta->deflink.sta_id, 1278c20e08b0SJohannes Berg .tid = tid, 1279c20e08b0SJohannes Berg .frame_limit = IWL_FRAME_LIMIT, 1280c20e08b0SJohannes Berg }; 1281c20e08b0SJohannes Berg unsigned int wdg_timeout = 1282c20e08b0SJohannes Berg iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 1283c20e08b0SJohannes Berg int queue = -1; 1284c6ce1c74SJohannes Berg u16 queue_tmp; 1285c20e08b0SJohannes Berg unsigned long disable_agg_tids = 0; 1286c20e08b0SJohannes Berg enum iwl_mvm_agg_state queue_state; 1287c20e08b0SJohannes Berg bool shared_queue = false, inc_ssn; 1288c20e08b0SJohannes Berg int ssn; 1289c20e08b0SJohannes Berg unsigned long tfd_queue_mask; 1290c20e08b0SJohannes Berg int ret; 1291c20e08b0SJohannes Berg 1292c20e08b0SJohannes Berg lockdep_assert_held(&mvm->mutex); 1293c20e08b0SJohannes Berg 1294c20e08b0SJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1295c20e08b0SJohannes Berg return iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 1296c20e08b0SJohannes Berg 1297c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1298c20e08b0SJohannes Berg tfd_queue_mask = mvmsta->tfd_queue_msk; 129935739348SSara Sharon ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 1300c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1301c20e08b0SJohannes Berg 1302cfbc6c4cSSara Sharon if (tid == IWL_MAX_TID_COUNT) { 1303*c8ee33e1SGregory Greenman queue = iwl_mvm_find_free_queue(mvm, mvmsta->deflink.sta_id, 1304c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_MGMT_QUEUE, 1305c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_MGMT_QUEUE); 1306c20e08b0SJohannes Berg if (queue >= IWL_MVM_DQA_MIN_MGMT_QUEUE) 1307c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Found free MGMT queue #%d\n", 1308c20e08b0SJohannes Berg queue); 1309c20e08b0SJohannes Berg 1310c20e08b0SJohannes Berg /* If no such queue is found, we'll use a DATA queue instead */ 1311c20e08b0SJohannes Berg } 1312c20e08b0SJohannes Berg 1313c20e08b0SJohannes Berg if ((queue < 0 && mvmsta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) && 1314c20e08b0SJohannes Berg (mvm->queue_info[mvmsta->reserved_queue].status == 1315724fe771SJohannes Berg IWL_MVM_QUEUE_RESERVED)) { 1316c20e08b0SJohannes Berg queue = mvmsta->reserved_queue; 1317c20e08b0SJohannes Berg mvm->queue_info[queue].reserved = true; 1318c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Using reserved queue #%d\n", queue); 1319c20e08b0SJohannes Berg } 1320c20e08b0SJohannes Berg 1321c20e08b0SJohannes Berg if (queue < 0) 1322*c8ee33e1SGregory Greenman queue = iwl_mvm_find_free_queue(mvm, mvmsta->deflink.sta_id, 1323c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 1324c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 1325724fe771SJohannes Berg if (queue < 0) { 1326724fe771SJohannes Berg /* try harder - perhaps kill an inactive queue */ 1327*c8ee33e1SGregory Greenman queue = iwl_mvm_inactivity_check(mvm, mvmsta->deflink.sta_id); 1328c20e08b0SJohannes Berg } 1329c20e08b0SJohannes Berg 1330c20e08b0SJohannes Berg /* No free queue - we'll have to share */ 1331c20e08b0SJohannes Berg if (queue <= 0) { 1332c20e08b0SJohannes Berg queue = iwl_mvm_get_shared_queue(mvm, tfd_queue_mask, ac); 1333c20e08b0SJohannes Berg if (queue > 0) { 1334c20e08b0SJohannes Berg shared_queue = true; 1335c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_SHARED; 1336c20e08b0SJohannes Berg } 1337c20e08b0SJohannes Berg } 1338c20e08b0SJohannes Berg 1339c20e08b0SJohannes Berg /* 1340c20e08b0SJohannes Berg * Mark TXQ as ready, even though it hasn't been fully configured yet, 1341c20e08b0SJohannes Berg * to make sure no one else takes it. 1342c20e08b0SJohannes Berg * This will allow avoiding re-acquiring the lock at the end of the 1343c20e08b0SJohannes Berg * configuration. On error we'll mark it back as free. 1344c20e08b0SJohannes Berg */ 1345c20e08b0SJohannes Berg if (queue > 0 && !shared_queue) 1346c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 1347c20e08b0SJohannes Berg 1348c20e08b0SJohannes Berg /* This shouldn't happen - out of queues */ 1349c20e08b0SJohannes Berg if (WARN_ON(queue <= 0)) { 1350c20e08b0SJohannes Berg IWL_ERR(mvm, "No available queues for tid %d on sta_id %d\n", 1351c20e08b0SJohannes Berg tid, cfg.sta_id); 1352c20e08b0SJohannes Berg return queue; 1353c20e08b0SJohannes Berg } 1354c20e08b0SJohannes Berg 1355c20e08b0SJohannes Berg /* 1356c20e08b0SJohannes Berg * Actual en/disablement of aggregations is through the ADD_STA HCMD, 1357c20e08b0SJohannes Berg * but for configuring the SCD to send A-MPDUs we need to mark the queue 1358c20e08b0SJohannes Berg * as aggregatable. 1359c20e08b0SJohannes Berg * Mark all DATA queues as allowing to be aggregated at some point 1360c20e08b0SJohannes Berg */ 1361c20e08b0SJohannes Berg cfg.aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1362c20e08b0SJohannes Berg queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE); 1363c20e08b0SJohannes Berg 1364c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 1365c20e08b0SJohannes Berg "Allocating %squeue #%d to sta %d on tid %d\n", 1366c20e08b0SJohannes Berg shared_queue ? "shared " : "", queue, 1367*c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid); 1368c20e08b0SJohannes Berg 1369c20e08b0SJohannes Berg if (shared_queue) { 1370c20e08b0SJohannes Berg /* Disable any open aggs on this queue */ 1371c20e08b0SJohannes Berg disable_agg_tids = iwl_mvm_get_queue_agg_tids(mvm, queue); 1372c20e08b0SJohannes Berg 1373c20e08b0SJohannes Berg if (disable_agg_tids) { 1374c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Disabling aggs on queue %d\n", 1375c20e08b0SJohannes Berg queue); 1376c20e08b0SJohannes Berg iwl_mvm_invalidate_sta_queue(mvm, queue, 1377c20e08b0SJohannes Berg disable_agg_tids, false); 1378c20e08b0SJohannes Berg } 1379c20e08b0SJohannes Berg } 1380c20e08b0SJohannes Berg 1381cfbc6c4cSSara Sharon inc_ssn = iwl_mvm_enable_txq(mvm, sta, queue, ssn, &cfg, wdg_timeout); 1382c20e08b0SJohannes Berg 1383c20e08b0SJohannes Berg /* 1384c20e08b0SJohannes Berg * Mark queue as shared in transport if shared 1385c20e08b0SJohannes Berg * Note this has to be done after queue enablement because enablement 1386c20e08b0SJohannes Berg * can also set this value, and there is no indication there to shared 1387c20e08b0SJohannes Berg * queues 1388c20e08b0SJohannes Berg */ 1389c20e08b0SJohannes Berg if (shared_queue) 1390c20e08b0SJohannes Berg iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 1391c20e08b0SJohannes Berg 1392c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1393c20e08b0SJohannes Berg /* 1394c20e08b0SJohannes Berg * This looks racy, but it is not. We have only one packet for 1395c20e08b0SJohannes Berg * this ra/tid in our Tx path since we stop the Qdisc when we 1396c20e08b0SJohannes Berg * need to allocate a new TFD queue. 1397c20e08b0SJohannes Berg */ 139835739348SSara Sharon if (inc_ssn) { 1399c20e08b0SJohannes Berg mvmsta->tid_data[tid].seq_number += 0x10; 140035739348SSara Sharon ssn = (ssn + 1) & IEEE80211_SCTL_SEQ; 140135739348SSara Sharon } 1402c20e08b0SJohannes Berg mvmsta->tid_data[tid].txq_id = queue; 1403c20e08b0SJohannes Berg mvmsta->tfd_queue_msk |= BIT(queue); 1404c20e08b0SJohannes Berg queue_state = mvmsta->tid_data[tid].state; 1405c20e08b0SJohannes Berg 1406c20e08b0SJohannes Berg if (mvmsta->reserved_queue == queue) 1407c20e08b0SJohannes Berg mvmsta->reserved_queue = IEEE80211_INVAL_HW_QUEUE; 1408c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1409c20e08b0SJohannes Berg 1410c20e08b0SJohannes Berg if (!shared_queue) { 1411c20e08b0SJohannes Berg ret = iwl_mvm_sta_send_to_fw(mvm, sta, true, STA_MODIFY_QUEUES); 1412c20e08b0SJohannes Berg if (ret) 1413c20e08b0SJohannes Berg goto out_err; 1414c20e08b0SJohannes Berg 1415c20e08b0SJohannes Berg /* If we need to re-enable aggregations... */ 1416c20e08b0SJohannes Berg if (queue_state == IWL_AGG_ON) { 1417c20e08b0SJohannes Berg ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 1418c20e08b0SJohannes Berg if (ret) 1419c20e08b0SJohannes Berg goto out_err; 1420c20e08b0SJohannes Berg } 1421c20e08b0SJohannes Berg } else { 1422c20e08b0SJohannes Berg /* Redirect queue, if needed */ 1423cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, ac, ssn, 1424cfbc6c4cSSara Sharon wdg_timeout, false, 1425cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 1426c20e08b0SJohannes Berg if (ret) 1427c20e08b0SJohannes Berg goto out_err; 1428c20e08b0SJohannes Berg } 1429c20e08b0SJohannes Berg 1430c20e08b0SJohannes Berg return 0; 1431c20e08b0SJohannes Berg 1432c20e08b0SJohannes Berg out_err: 1433c6ce1c74SJohannes Berg queue_tmp = queue; 1434*c8ee33e1SGregory Greenman iwl_mvm_disable_txq(mvm, sta, mvmsta->deflink.sta_id, &queue_tmp, tid); 1435c20e08b0SJohannes Berg 1436c20e08b0SJohannes Berg return ret; 1437c20e08b0SJohannes Berg } 1438c20e08b0SJohannes Berg 143924afba76SLiad Kaufman void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk) 144024afba76SLiad Kaufman { 144124afba76SLiad Kaufman struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, 144224afba76SLiad Kaufman add_stream_wk); 144324afba76SLiad Kaufman 144424afba76SLiad Kaufman mutex_lock(&mvm->mutex); 144524afba76SLiad Kaufman 1446724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 14479f9af3d7SLiad Kaufman 1448cfbc6c4cSSara Sharon while (!list_empty(&mvm->add_stream_txqs)) { 1449cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq; 1450cfbc6c4cSSara Sharon struct ieee80211_txq *txq; 1451cfbc6c4cSSara Sharon u8 tid; 145224afba76SLiad Kaufman 1453cfbc6c4cSSara Sharon mvmtxq = list_first_entry(&mvm->add_stream_txqs, 1454cfbc6c4cSSara Sharon struct iwl_mvm_txq, list); 145524afba76SLiad Kaufman 1456cfbc6c4cSSara Sharon txq = container_of((void *)mvmtxq, struct ieee80211_txq, 1457cfbc6c4cSSara Sharon drv_priv); 1458cfbc6c4cSSara Sharon tid = txq->tid; 1459cfbc6c4cSSara Sharon if (tid == IEEE80211_NUM_TIDS) 1460cfbc6c4cSSara Sharon tid = IWL_MAX_TID_COUNT; 1461cfbc6c4cSSara Sharon 14623d1d87abSJohannes Berg /* 14633d1d87abSJohannes Berg * We can't really do much here, but if this fails we can't 14643d1d87abSJohannes Berg * transmit anyway - so just don't transmit the frame etc. 14653d1d87abSJohannes Berg * and let them back up ... we've tried our best to allocate 14663d1d87abSJohannes Berg * a queue in the function itself. 14673d1d87abSJohannes Berg */ 14683d1d87abSJohannes Berg if (iwl_mvm_sta_alloc_queue(mvm, txq->sta, txq->ac, tid)) { 14693d1d87abSJohannes Berg list_del_init(&mvmtxq->list); 14703d1d87abSJohannes Berg continue; 14713d1d87abSJohannes Berg } 14723d1d87abSJohannes Berg 1473cfbc6c4cSSara Sharon list_del_init(&mvmtxq->list); 1474f5ae2f93SJohannes Berg local_bh_disable(); 1475cfbc6c4cSSara Sharon iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1476f5ae2f93SJohannes Berg local_bh_enable(); 147724afba76SLiad Kaufman } 147824afba76SLiad Kaufman 147924afba76SLiad Kaufman mutex_unlock(&mvm->mutex); 148024afba76SLiad Kaufman } 148124afba76SLiad Kaufman 148224afba76SLiad Kaufman static int iwl_mvm_reserve_sta_stream(struct iwl_mvm *mvm, 1483d5216a28SLiad Kaufman struct ieee80211_sta *sta, 1484d5216a28SLiad Kaufman enum nl80211_iftype vif_type) 148524afba76SLiad Kaufman { 148624afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 148724afba76SLiad Kaufman int queue; 148824afba76SLiad Kaufman 1489396952eeSSara Sharon /* queue reserving is disabled on new TX path */ 1490396952eeSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1491396952eeSSara Sharon return 0; 1492396952eeSSara Sharon 1493724fe771SJohannes Berg /* run the general cleanup/unsharing of queues */ 1494724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 14959794c64fSLiad Kaufman 149624afba76SLiad Kaufman /* Make sure we have free resources for this STA */ 1497d5216a28SLiad Kaufman if (vif_type == NL80211_IFTYPE_STATION && !sta->tdls && 14981c14089eSJohannes Berg !mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].tid_bitmap && 1499cf961e16SLiad Kaufman (mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].status == 1500cf961e16SLiad Kaufman IWL_MVM_QUEUE_FREE)) 1501d5216a28SLiad Kaufman queue = IWL_MVM_DQA_BSS_CLIENT_QUEUE; 1502d5216a28SLiad Kaufman else 1503*c8ee33e1SGregory Greenman queue = iwl_mvm_find_free_queue(mvm, mvmsta->deflink.sta_id, 15049794c64fSLiad Kaufman IWL_MVM_DQA_MIN_DATA_QUEUE, 150524afba76SLiad Kaufman IWL_MVM_DQA_MAX_DATA_QUEUE); 150624afba76SLiad Kaufman if (queue < 0) { 1507724fe771SJohannes Berg /* try again - this time kick out a queue if needed */ 1508*c8ee33e1SGregory Greenman queue = iwl_mvm_inactivity_check(mvm, mvmsta->deflink.sta_id); 1509724fe771SJohannes Berg if (queue < 0) { 151024afba76SLiad Kaufman IWL_ERR(mvm, "No available queues for new station\n"); 151124afba76SLiad Kaufman return -ENOSPC; 1512724fe771SJohannes Berg } 151324afba76SLiad Kaufman } 1514cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_RESERVED; 151524afba76SLiad Kaufman 151624afba76SLiad Kaufman mvmsta->reserved_queue = queue; 151724afba76SLiad Kaufman 151824afba76SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Reserving data queue #%d for sta_id %d\n", 1519*c8ee33e1SGregory Greenman queue, mvmsta->deflink.sta_id); 152024afba76SLiad Kaufman 152124afba76SLiad Kaufman return 0; 152224afba76SLiad Kaufman } 152324afba76SLiad Kaufman 15248d98ae6eSLiad Kaufman /* 15258d98ae6eSLiad Kaufman * In DQA mode, after a HW restart the queues should be allocated as before, in 15268d98ae6eSLiad Kaufman * order to avoid race conditions when there are shared queues. This function 15278d98ae6eSLiad Kaufman * does the re-mapping and queue allocation. 15288d98ae6eSLiad Kaufman * 15298d98ae6eSLiad Kaufman * Note that re-enabling aggregations isn't done in this function. 15308d98ae6eSLiad Kaufman */ 15318d98ae6eSLiad Kaufman static void iwl_mvm_realloc_queues_after_restart(struct iwl_mvm *mvm, 1532cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 15338d98ae6eSLiad Kaufman { 1534cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1535cfbc6c4cSSara Sharon unsigned int wdg = 15368d98ae6eSLiad Kaufman iwl_mvm_get_wd_timeout(mvm, mvm_sta->vif, false, false); 15378d98ae6eSLiad Kaufman int i; 15388d98ae6eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 1539*c8ee33e1SGregory Greenman .sta_id = mvm_sta->deflink.sta_id, 15408d98ae6eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 15418d98ae6eSLiad Kaufman }; 15428d98ae6eSLiad Kaufman 154303c902bfSJohannes Berg /* Make sure reserved queue is still marked as such (if allocated) */ 154403c902bfSJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) 15458d98ae6eSLiad Kaufman mvm->queue_info[mvm_sta->reserved_queue].status = 15468d98ae6eSLiad Kaufman IWL_MVM_QUEUE_RESERVED; 15478d98ae6eSLiad Kaufman 15488d98ae6eSLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 15498d98ae6eSLiad Kaufman struct iwl_mvm_tid_data *tid_data = &mvm_sta->tid_data[i]; 15508d98ae6eSLiad Kaufman int txq_id = tid_data->txq_id; 15518d98ae6eSLiad Kaufman int ac; 15528d98ae6eSLiad Kaufman 15536862fceeSSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 15548d98ae6eSLiad Kaufman continue; 15558d98ae6eSLiad Kaufman 15568d98ae6eSLiad Kaufman ac = tid_to_mac80211_ac[i]; 15578d98ae6eSLiad Kaufman 1558310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1559310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 1560310181ecSSara Sharon "Re-mapping sta %d tid %d\n", 1561*c8ee33e1SGregory Greenman mvm_sta->deflink.sta_id, i); 156209369983SJohannes Berg txq_id = iwl_mvm_tvqm_enable_txq(mvm, sta, 1563*c8ee33e1SGregory Greenman mvm_sta->deflink.sta_id, 1564cfbc6c4cSSara Sharon i, wdg); 156591cf5dedSJohannes Berg /* 156691cf5dedSJohannes Berg * on failures, just set it to IWL_MVM_INVALID_QUEUE 156791cf5dedSJohannes Berg * to try again later, we have no other good way of 156891cf5dedSJohannes Berg * failing here 156991cf5dedSJohannes Berg */ 157091cf5dedSJohannes Berg if (txq_id < 0) 157191cf5dedSJohannes Berg txq_id = IWL_MVM_INVALID_QUEUE; 1572310181ecSSara Sharon tid_data->txq_id = txq_id; 15735d39051aSLiad Kaufman 15745d39051aSLiad Kaufman /* 15755d39051aSLiad Kaufman * Since we don't set the seq number after reset, and HW 15765d39051aSLiad Kaufman * sets it now, FW reset will cause the seq num to start 15775d39051aSLiad Kaufman * at 0 again, so driver will need to update it 15785d39051aSLiad Kaufman * internally as well, so it keeps in sync with real val 15795d39051aSLiad Kaufman */ 15805d39051aSLiad Kaufman tid_data->seq_number = 0; 1581310181ecSSara Sharon } else { 1582310181ecSSara Sharon u16 seq = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 1583310181ecSSara Sharon 15848d98ae6eSLiad Kaufman cfg.tid = i; 1585cf6c6ea3SEmmanuel Grumbach cfg.fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac); 15868d98ae6eSLiad Kaufman cfg.aggregate = (txq_id >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1587310181ecSSara Sharon txq_id == 1588310181ecSSara Sharon IWL_MVM_DQA_BSS_CLIENT_QUEUE); 15898d98ae6eSLiad Kaufman 15908d98ae6eSLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 15918d98ae6eSLiad Kaufman "Re-mapping sta %d tid %d to queue %d\n", 1592*c8ee33e1SGregory Greenman mvm_sta->deflink.sta_id, i, 1593*c8ee33e1SGregory Greenman txq_id); 15948d98ae6eSLiad Kaufman 1595cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, txq_id, seq, &cfg, wdg); 15968d98ae6eSLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_READY; 15978d98ae6eSLiad Kaufman } 159834e10860SSara Sharon } 15998d98ae6eSLiad Kaufman } 16008d98ae6eSLiad Kaufman 1601732d06e9SShaul Triebitz static int iwl_mvm_add_int_sta_common(struct iwl_mvm *mvm, 1602732d06e9SShaul Triebitz struct iwl_mvm_int_sta *sta, 1603732d06e9SShaul Triebitz const u8 *addr, 1604732d06e9SShaul Triebitz u16 mac_id, u16 color) 1605732d06e9SShaul Triebitz { 1606732d06e9SShaul Triebitz struct iwl_mvm_add_sta_cmd cmd; 1607732d06e9SShaul Triebitz int ret; 16083f497de9SLuca Coelho u32 status = ADD_STA_SUCCESS; 1609732d06e9SShaul Triebitz 1610732d06e9SShaul Triebitz lockdep_assert_held(&mvm->mutex); 1611732d06e9SShaul Triebitz 1612732d06e9SShaul Triebitz memset(&cmd, 0, sizeof(cmd)); 1613732d06e9SShaul Triebitz cmd.sta_id = sta->sta_id; 16142c2c3647SNathan Errera 1615971cbe50SJohannes Berg if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) >= 12 && 16162c2c3647SNathan Errera sta->type == IWL_STA_AUX_ACTIVITY) 16172c2c3647SNathan Errera cmd.mac_id_n_color = cpu_to_le32(mac_id); 16182c2c3647SNathan Errera else 1619732d06e9SShaul Triebitz cmd.mac_id_n_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mac_id, 1620732d06e9SShaul Triebitz color)); 16212c2c3647SNathan Errera 1622732d06e9SShaul Triebitz if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 1623732d06e9SShaul Triebitz cmd.station_type = sta->type; 1624732d06e9SShaul Triebitz 1625732d06e9SShaul Triebitz if (!iwl_mvm_has_new_tx_api(mvm)) 1626732d06e9SShaul Triebitz cmd.tfd_queue_msk = cpu_to_le32(sta->tfd_queue_msk); 1627732d06e9SShaul Triebitz cmd.tid_disable_tx = cpu_to_le16(0xffff); 1628732d06e9SShaul Triebitz 1629732d06e9SShaul Triebitz if (addr) 1630732d06e9SShaul Triebitz memcpy(cmd.addr, addr, ETH_ALEN); 1631732d06e9SShaul Triebitz 1632732d06e9SShaul Triebitz ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1633732d06e9SShaul Triebitz iwl_mvm_add_sta_cmd_size(mvm), 1634732d06e9SShaul Triebitz &cmd, &status); 1635732d06e9SShaul Triebitz if (ret) 1636732d06e9SShaul Triebitz return ret; 1637732d06e9SShaul Triebitz 1638732d06e9SShaul Triebitz switch (status & IWL_ADD_STA_STATUS_MASK) { 1639732d06e9SShaul Triebitz case ADD_STA_SUCCESS: 1640732d06e9SShaul Triebitz IWL_DEBUG_INFO(mvm, "Internal station added.\n"); 1641732d06e9SShaul Triebitz return 0; 1642732d06e9SShaul Triebitz default: 1643732d06e9SShaul Triebitz ret = -EIO; 1644732d06e9SShaul Triebitz IWL_ERR(mvm, "Add internal station failed, status=0x%x\n", 1645732d06e9SShaul Triebitz status); 1646732d06e9SShaul Triebitz break; 1647732d06e9SShaul Triebitz } 1648732d06e9SShaul Triebitz return ret; 1649732d06e9SShaul Triebitz } 1650732d06e9SShaul Triebitz 165169aef848SMiri Korenblit /* Initialize driver data of a new sta */ 165269aef848SMiri Korenblit static int iwl_mvm_sta_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 165369aef848SMiri Korenblit struct ieee80211_sta *sta, int sta_id, u8 sta_type) 1654e705c121SKalle Valo { 1655e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1656e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1657a571f5f6SSara Sharon struct iwl_mvm_rxq_dup_data *dup_data; 165869aef848SMiri Korenblit int i, ret = 0; 1659e705c121SKalle Valo 1660e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1661e705c121SKalle Valo 1662*c8ee33e1SGregory Greenman mvm_sta->deflink.sta_id = sta_id; 1663*c8ee33e1SGregory Greenman rcu_assign_pointer(mvm_sta->link[0], &mvm_sta->deflink); 1664*c8ee33e1SGregory Greenman 1665e705c121SKalle Valo mvm_sta->mac_id_n_color = FW_CMD_ID_AND_COLOR(mvmvif->id, 1666e705c121SKalle Valo mvmvif->color); 1667e705c121SKalle Valo mvm_sta->vif = vif; 1668286ca8ebSLuca Coelho if (!mvm->trans->trans_cfg->gen2) 1669e705c121SKalle Valo mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_DEF; 1670a58bb468SLiad Kaufman else 1671a58bb468SLiad Kaufman mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF; 1672e705c121SKalle Valo mvm_sta->tt_tx_protection = false; 167369aef848SMiri Korenblit mvm_sta->sta_type = sta_type; 1674e705c121SKalle Valo 1675e705c121SKalle Valo mvm_sta->tid_disable_agg = 0xffff; /* No aggs at first */ 1676e705c121SKalle Valo 167724afba76SLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 167824afba76SLiad Kaufman /* 167924afba76SLiad Kaufman * Mark all queues for this STA as unallocated and defer TX 168024afba76SLiad Kaufman * frames until the queue is allocated 168124afba76SLiad Kaufman */ 16826862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 1683e705c121SKalle Valo } 1684cfbc6c4cSSara Sharon 1685cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1686cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1687cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1688cfbc6c4cSSara Sharon 1689cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 1690cfbc6c4cSSara Sharon INIT_LIST_HEAD(&mvmtxq->list); 1691fba8248eSSara Sharon atomic_set(&mvmtxq->tx_request, 0); 1692cfbc6c4cSSara Sharon } 1693cfbc6c4cSSara Sharon 169469aef848SMiri Korenblit if (iwl_mvm_has_new_rx_api(mvm)) { 169592c4dca6SJohannes Berg int q; 169692c4dca6SJohannes Berg 1697a571f5f6SSara Sharon dup_data = kcalloc(mvm->trans->num_rx_queues, 169892c4dca6SJohannes Berg sizeof(*dup_data), GFP_KERNEL); 1699a571f5f6SSara Sharon if (!dup_data) 1700a571f5f6SSara Sharon return -ENOMEM; 170192c4dca6SJohannes Berg /* 170292c4dca6SJohannes Berg * Initialize all the last_seq values to 0xffff which can never 170392c4dca6SJohannes Berg * compare equal to the frame's seq_ctrl in the check in 170492c4dca6SJohannes Berg * iwl_mvm_is_dup() since the lower 4 bits are the fragment 170592c4dca6SJohannes Berg * number and fragmented packets don't reach that function. 170692c4dca6SJohannes Berg * 170792c4dca6SJohannes Berg * This thus allows receiving a packet with seqno 0 and the 170892c4dca6SJohannes Berg * retry bit set as the very first packet on a new TID. 170992c4dca6SJohannes Berg */ 171092c4dca6SJohannes Berg for (q = 0; q < mvm->trans->num_rx_queues; q++) 171192c4dca6SJohannes Berg memset(dup_data[q].last_seq, 0xff, 171292c4dca6SJohannes Berg sizeof(dup_data[q].last_seq)); 1713a571f5f6SSara Sharon mvm_sta->dup_data = dup_data; 1714a571f5f6SSara Sharon } 1715a571f5f6SSara Sharon 1716c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 1717d5216a28SLiad Kaufman ret = iwl_mvm_reserve_sta_stream(mvm, sta, 1718d5216a28SLiad Kaufman ieee80211_vif_type_p2p(vif)); 171924afba76SLiad Kaufman if (ret) 172069aef848SMiri Korenblit return ret; 172124afba76SLiad Kaufman } 172224afba76SLiad Kaufman 17239f66a397SGregory Greenman /* 17249f66a397SGregory Greenman * if rs is registered with mac80211, then "add station" will be handled 17259f66a397SGregory Greenman * via the corresponding ops, otherwise need to notify rate scaling here 17269f66a397SGregory Greenman */ 17274243edb4SEmmanuel Grumbach if (iwl_mvm_has_tlc_offload(mvm)) 17289f66a397SGregory Greenman iwl_mvm_rs_add_sta(mvm, mvm_sta); 17290f8084cdSMordechay Goodstein else 1730*c8ee33e1SGregory Greenman spin_lock_init(&mvm_sta->deflink.lq_sta.rs_drv.pers.lock); 17319f66a397SGregory Greenman 17320dde2440SAvraham Stern iwl_mvm_toggle_tx_ant(mvm, &mvm_sta->tx_ant); 17330dde2440SAvraham Stern 173469aef848SMiri Korenblit return 0; 173569aef848SMiri Korenblit } 173669aef848SMiri Korenblit 173769aef848SMiri Korenblit int iwl_mvm_add_sta(struct iwl_mvm *mvm, 173869aef848SMiri Korenblit struct ieee80211_vif *vif, 173969aef848SMiri Korenblit struct ieee80211_sta *sta) 174069aef848SMiri Korenblit { 174169aef848SMiri Korenblit struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 174269aef848SMiri Korenblit struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 174369aef848SMiri Korenblit int ret, sta_id; 174469aef848SMiri Korenblit bool sta_update = false; 174569aef848SMiri Korenblit unsigned int sta_flags = 0; 174669aef848SMiri Korenblit 174769aef848SMiri Korenblit lockdep_assert_held(&mvm->mutex); 174869aef848SMiri Korenblit 174969aef848SMiri Korenblit if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 175069aef848SMiri Korenblit sta_id = iwl_mvm_find_free_sta_id(mvm, 175169aef848SMiri Korenblit ieee80211_vif_type_p2p(vif)); 175269aef848SMiri Korenblit else 1753*c8ee33e1SGregory Greenman sta_id = mvm_sta->deflink.sta_id; 175469aef848SMiri Korenblit 175569aef848SMiri Korenblit if (sta_id == IWL_MVM_INVALID_STA) 175669aef848SMiri Korenblit return -ENOSPC; 175769aef848SMiri Korenblit 175869aef848SMiri Korenblit spin_lock_init(&mvm_sta->lock); 175969aef848SMiri Korenblit 176069aef848SMiri Korenblit /* if this is a HW restart re-alloc existing queues */ 176169aef848SMiri Korenblit if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 176269aef848SMiri Korenblit struct iwl_mvm_int_sta tmp_sta = { 176369aef848SMiri Korenblit .sta_id = sta_id, 176469aef848SMiri Korenblit .type = mvm_sta->sta_type, 176569aef848SMiri Korenblit }; 176669aef848SMiri Korenblit 176769aef848SMiri Korenblit /* First add an empty station since allocating 176869aef848SMiri Korenblit * a queue requires a valid station 176969aef848SMiri Korenblit */ 177069aef848SMiri Korenblit ret = iwl_mvm_add_int_sta_common(mvm, &tmp_sta, sta->addr, 177169aef848SMiri Korenblit mvmvif->id, mvmvif->color); 177269aef848SMiri Korenblit if (ret) 177369aef848SMiri Korenblit goto err; 177469aef848SMiri Korenblit 177569aef848SMiri Korenblit iwl_mvm_realloc_queues_after_restart(mvm, sta); 177669aef848SMiri Korenblit sta_update = true; 177769aef848SMiri Korenblit sta_flags = iwl_mvm_has_new_tx_api(mvm) ? 0 : STA_MODIFY_QUEUES; 177869aef848SMiri Korenblit goto update_fw; 177969aef848SMiri Korenblit } 178069aef848SMiri Korenblit 178169aef848SMiri Korenblit ret = iwl_mvm_sta_init(mvm, vif, sta, sta_id, 178269aef848SMiri Korenblit sta->tdls ? IWL_STA_TDLS_LINK : IWL_STA_LINK); 178369aef848SMiri Korenblit 17848d98ae6eSLiad Kaufman update_fw: 1785732d06e9SShaul Triebitz ret = iwl_mvm_sta_send_to_fw(mvm, sta, sta_update, sta_flags); 1786e705c121SKalle Valo if (ret) 1787e705c121SKalle Valo goto err; 1788e705c121SKalle Valo 1789e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) { 1790e705c121SKalle Valo if (!sta->tdls) { 1791650cadb7SGregory Greenman WARN_ON(mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA); 1792650cadb7SGregory Greenman mvmvif->deflink.ap_sta_id = sta_id; 1793e705c121SKalle Valo } else { 1794650cadb7SGregory Greenman WARN_ON(mvmvif->deflink.ap_sta_id == IWL_MVM_INVALID_STA); 1795e705c121SKalle Valo } 1796e705c121SKalle Valo } 1797e705c121SKalle Valo 1798e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], sta); 1799e705c121SKalle Valo 1800e705c121SKalle Valo return 0; 1801e705c121SKalle Valo 1802e705c121SKalle Valo err: 1803e705c121SKalle Valo return ret; 1804e705c121SKalle Valo } 1805e705c121SKalle Valo 1806e705c121SKalle Valo int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, 1807e705c121SKalle Valo bool drain) 1808e705c121SKalle Valo { 1809e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 1810e705c121SKalle Valo int ret; 1811e705c121SKalle Valo u32 status; 1812e705c121SKalle Valo 1813e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1814e705c121SKalle Valo 1815e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 1816*c8ee33e1SGregory Greenman cmd.sta_id = mvmsta->deflink.sta_id; 1817e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 1818e705c121SKalle Valo cmd.station_flags = drain ? cpu_to_le32(STA_FLG_DRAIN_FLOW) : 0; 1819e705c121SKalle Valo cmd.station_flags_msk = cpu_to_le32(STA_FLG_DRAIN_FLOW); 1820e705c121SKalle Valo 1821e705c121SKalle Valo status = ADD_STA_SUCCESS; 1822854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1823854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 1824e705c121SKalle Valo &cmd, &status); 1825e705c121SKalle Valo if (ret) 1826e705c121SKalle Valo return ret; 1827e705c121SKalle Valo 1828837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 1829e705c121SKalle Valo case ADD_STA_SUCCESS: 1830e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "Frames for staid %d will drained in fw\n", 1831*c8ee33e1SGregory Greenman mvmsta->deflink.sta_id); 1832e705c121SKalle Valo break; 1833e705c121SKalle Valo default: 1834e705c121SKalle Valo ret = -EIO; 1835e705c121SKalle Valo IWL_ERR(mvm, "Couldn't drain frames for staid %d\n", 1836*c8ee33e1SGregory Greenman mvmsta->deflink.sta_id); 1837e705c121SKalle Valo break; 1838e705c121SKalle Valo } 1839e705c121SKalle Valo 1840e705c121SKalle Valo return ret; 1841e705c121SKalle Valo } 1842e705c121SKalle Valo 1843e705c121SKalle Valo /* 1844e705c121SKalle Valo * Remove a station from the FW table. Before sending the command to remove 1845e705c121SKalle Valo * the station validate that the station is indeed known to the driver (sanity 1846e705c121SKalle Valo * only). 1847e705c121SKalle Valo */ 1848e705c121SKalle Valo static int iwl_mvm_rm_sta_common(struct iwl_mvm *mvm, u8 sta_id) 1849e705c121SKalle Valo { 1850e705c121SKalle Valo struct ieee80211_sta *sta; 1851e705c121SKalle Valo struct iwl_mvm_rm_sta_cmd rm_sta_cmd = { 1852e705c121SKalle Valo .sta_id = sta_id, 1853e705c121SKalle Valo }; 1854e705c121SKalle Valo int ret; 1855e705c121SKalle Valo 1856e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 1857e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1858e705c121SKalle Valo 1859e705c121SKalle Valo /* Note: internal stations are marked as error values */ 1860e705c121SKalle Valo if (!sta) { 1861e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 1862e705c121SKalle Valo return -EINVAL; 1863e705c121SKalle Valo } 1864e705c121SKalle Valo 1865e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, REMOVE_STA, 0, 1866e705c121SKalle Valo sizeof(rm_sta_cmd), &rm_sta_cmd); 1867e705c121SKalle Valo if (ret) { 1868e705c121SKalle Valo IWL_ERR(mvm, "Failed to remove station. Id=%d\n", sta_id); 1869e705c121SKalle Valo return ret; 1870e705c121SKalle Valo } 1871e705c121SKalle Valo 1872e705c121SKalle Valo return 0; 1873e705c121SKalle Valo } 1874e705c121SKalle Valo 187524afba76SLiad Kaufman static void iwl_mvm_disable_sta_queues(struct iwl_mvm *mvm, 187624afba76SLiad Kaufman struct ieee80211_vif *vif, 1877cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 187824afba76SLiad Kaufman { 1879cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 188024afba76SLiad Kaufman int i; 188124afba76SLiad Kaufman 188224afba76SLiad Kaufman lockdep_assert_held(&mvm->mutex); 188324afba76SLiad Kaufman 188424afba76SLiad Kaufman for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 18856862fceeSSara Sharon if (mvm_sta->tid_data[i].txq_id == IWL_MVM_INVALID_QUEUE) 188624afba76SLiad Kaufman continue; 188724afba76SLiad Kaufman 1888*c8ee33e1SGregory Greenman iwl_mvm_disable_txq(mvm, sta, mvm_sta->deflink.sta_id, 1889c5a976cfSJohannes Berg &mvm_sta->tid_data[i].txq_id, i); 18906862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 189124afba76SLiad Kaufman } 1892cfbc6c4cSSara Sharon 1893cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1894cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1895cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1896cfbc6c4cSSara Sharon 1897cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 189814a3aacfSJose Ignacio Tornos Martinez list_del_init(&mvmtxq->list); 1899cfbc6c4cSSara Sharon } 190024afba76SLiad Kaufman } 190124afba76SLiad Kaufman 1902d6d517b7SSara Sharon int iwl_mvm_wait_sta_queues_empty(struct iwl_mvm *mvm, 1903d6d517b7SSara Sharon struct iwl_mvm_sta *mvm_sta) 1904d6d517b7SSara Sharon { 1905bec9522aSSharon Dvir int i; 1906d6d517b7SSara Sharon 1907d6d517b7SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 1908d6d517b7SSara Sharon u16 txq_id; 1909bec9522aSSharon Dvir int ret; 1910d6d517b7SSara Sharon 1911d6d517b7SSara Sharon spin_lock_bh(&mvm_sta->lock); 1912d6d517b7SSara Sharon txq_id = mvm_sta->tid_data[i].txq_id; 1913d6d517b7SSara Sharon spin_unlock_bh(&mvm_sta->lock); 1914d6d517b7SSara Sharon 1915d6d517b7SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 1916d6d517b7SSara Sharon continue; 1917d6d517b7SSara Sharon 1918d6d517b7SSara Sharon ret = iwl_trans_wait_txq_empty(mvm->trans, txq_id); 1919d6d517b7SSara Sharon if (ret) 1920bec9522aSSharon Dvir return ret; 1921d6d517b7SSara Sharon } 1922d6d517b7SSara Sharon 1923bec9522aSSharon Dvir return 0; 1924d6d517b7SSara Sharon } 1925d6d517b7SSara Sharon 192669aef848SMiri Korenblit /* Execute the common part for both MLD and non-MLD modes */ 192769aef848SMiri Korenblit static bool iwl_mvm_sta_del(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 192869aef848SMiri Korenblit struct ieee80211_sta *sta, int *ret) 1929e705c121SKalle Valo { 1930e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1931e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1932*c8ee33e1SGregory Greenman u8 sta_id = mvm_sta->deflink.sta_id; 193369aef848SMiri Korenblit 193469aef848SMiri Korenblit lockdep_assert_held(&mvm->mutex); 193569aef848SMiri Korenblit 193669aef848SMiri Korenblit /* If there is a TXQ still marked as reserved - free it */ 193769aef848SMiri Korenblit if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) { 193869aef848SMiri Korenblit u8 reserved_txq = mvm_sta->reserved_queue; 193969aef848SMiri Korenblit enum iwl_mvm_queue_status *status; 194069aef848SMiri Korenblit 194169aef848SMiri Korenblit /* 194269aef848SMiri Korenblit * If no traffic has gone through the reserved TXQ - it 194369aef848SMiri Korenblit * is still marked as IWL_MVM_QUEUE_RESERVED, and 194469aef848SMiri Korenblit * should be manually marked as free again 194569aef848SMiri Korenblit */ 194669aef848SMiri Korenblit status = &mvm->queue_info[reserved_txq].status; 194769aef848SMiri Korenblit if (WARN((*status != IWL_MVM_QUEUE_RESERVED) && 194869aef848SMiri Korenblit (*status != IWL_MVM_QUEUE_FREE), 194969aef848SMiri Korenblit "sta_id %d reserved txq %d status %d", 195069aef848SMiri Korenblit sta_id, reserved_txq, *status)) { 195169aef848SMiri Korenblit *ret = -EINVAL; 195269aef848SMiri Korenblit return true; 195369aef848SMiri Korenblit } 195469aef848SMiri Korenblit 195569aef848SMiri Korenblit *status = IWL_MVM_QUEUE_FREE; 195669aef848SMiri Korenblit } 195769aef848SMiri Korenblit 195869aef848SMiri Korenblit if (vif->type == NL80211_IFTYPE_STATION && 1959650cadb7SGregory Greenman mvmvif->deflink.ap_sta_id == sta_id) { 196069aef848SMiri Korenblit /* if associated - we can't remove the AP STA now */ 196169aef848SMiri Korenblit if (vif->cfg.assoc) 196269aef848SMiri Korenblit return true; 196369aef848SMiri Korenblit 196469aef848SMiri Korenblit /* first remove remaining keys */ 196569aef848SMiri Korenblit iwl_mvm_sec_key_remove_ap(mvm, vif); 196669aef848SMiri Korenblit 196769aef848SMiri Korenblit /* unassoc - go ahead - remove the AP STA now */ 1968650cadb7SGregory Greenman mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA; 196969aef848SMiri Korenblit } 197069aef848SMiri Korenblit 197169aef848SMiri Korenblit /* 197269aef848SMiri Korenblit * This shouldn't happen - the TDLS channel switch should be canceled 197369aef848SMiri Korenblit * before the STA is removed. 197469aef848SMiri Korenblit */ 197569aef848SMiri Korenblit if (WARN_ON_ONCE(mvm->tdls_cs.peer.sta_id == sta_id)) { 197669aef848SMiri Korenblit mvm->tdls_cs.peer.sta_id = IWL_MVM_INVALID_STA; 197769aef848SMiri Korenblit cancel_delayed_work(&mvm->tdls_cs.dwork); 197869aef848SMiri Korenblit } 197969aef848SMiri Korenblit 198069aef848SMiri Korenblit /* 198169aef848SMiri Korenblit * Make sure that the tx response code sees the station as -EBUSY and 198269aef848SMiri Korenblit * calls the drain worker. 198369aef848SMiri Korenblit */ 198469aef848SMiri Korenblit spin_lock_bh(&mvm_sta->lock); 198569aef848SMiri Korenblit spin_unlock_bh(&mvm_sta->lock); 198669aef848SMiri Korenblit 198769aef848SMiri Korenblit return false; 198869aef848SMiri Korenblit } 198969aef848SMiri Korenblit 199069aef848SMiri Korenblit int iwl_mvm_rm_sta(struct iwl_mvm *mvm, 199169aef848SMiri Korenblit struct ieee80211_vif *vif, 199269aef848SMiri Korenblit struct ieee80211_sta *sta) 199369aef848SMiri Korenblit { 199469aef848SMiri Korenblit struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1995e705c121SKalle Valo int ret; 1996e705c121SKalle Valo 1997e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1998e705c121SKalle Valo 1999a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm)) 2000a571f5f6SSara Sharon kfree(mvm_sta->dup_data); 2001a571f5f6SSara Sharon 2002e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, true); 2003e705c121SKalle Valo if (ret) 2004e705c121SKalle Valo return ret; 2005c8f54701SJohannes Berg 2006e705c121SKalle Valo /* flush its queues here since we are freeing mvm_sta */ 2007f9084775SNathan Errera ret = iwl_mvm_flush_sta(mvm, mvm_sta, false); 2008e705c121SKalle Valo if (ret) 2009e705c121SKalle Valo return ret; 2010d6d517b7SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 2011d6d517b7SSara Sharon ret = iwl_mvm_wait_sta_queues_empty(mvm, mvm_sta); 2012d6d517b7SSara Sharon } else { 2013d6d517b7SSara Sharon u32 q_mask = mvm_sta->tfd_queue_msk; 2014d6d517b7SSara Sharon 2015a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 2016d6d517b7SSara Sharon q_mask); 2017d6d517b7SSara Sharon } 2018e705c121SKalle Valo if (ret) 2019e705c121SKalle Valo return ret; 2020c8f54701SJohannes Berg 2021e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, false); 2022e705c121SKalle Valo 2023cfbc6c4cSSara Sharon iwl_mvm_disable_sta_queues(mvm, vif, sta); 202456214749SLiad Kaufman 202569aef848SMiri Korenblit if (iwl_mvm_sta_del(mvm, vif, sta, &ret)) 2026e705c121SKalle Valo return ret; 2027e705c121SKalle Valo 2028*c8ee33e1SGregory Greenman ret = iwl_mvm_rm_sta_common(mvm, mvm_sta->deflink.sta_id); 2029*c8ee33e1SGregory Greenman RCU_INIT_POINTER(mvm->fw_id_to_mac_id[mvm_sta->deflink.sta_id], NULL); 2030e705c121SKalle Valo 2031e705c121SKalle Valo return ret; 2032e705c121SKalle Valo } 2033e705c121SKalle Valo 2034e705c121SKalle Valo int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm, 2035e705c121SKalle Valo struct ieee80211_vif *vif, 2036e705c121SKalle Valo u8 sta_id) 2037e705c121SKalle Valo { 2038e705c121SKalle Valo int ret = iwl_mvm_rm_sta_common(mvm, sta_id); 2039e705c121SKalle Valo 2040e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2041e705c121SKalle Valo 2042e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], NULL); 2043e705c121SKalle Valo return ret; 2044e705c121SKalle Valo } 2045e705c121SKalle Valo 20460e39eb03SChaya Rachel Ivgi int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, 2047e705c121SKalle Valo struct iwl_mvm_int_sta *sta, 2048ced19f26SSara Sharon u32 qmask, enum nl80211_iftype iftype, 2049006c152aSMiri Korenblit u8 type) 2050e705c121SKalle Valo { 2051df65c8d1SAvraham Stern if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 2052df65c8d1SAvraham Stern sta->sta_id == IWL_MVM_INVALID_STA) { 2053e705c121SKalle Valo sta->sta_id = iwl_mvm_find_free_sta_id(mvm, iftype); 20540ae98812SSara Sharon if (WARN_ON_ONCE(sta->sta_id == IWL_MVM_INVALID_STA)) 2055e705c121SKalle Valo return -ENOSPC; 2056e705c121SKalle Valo } 2057e705c121SKalle Valo 2058e705c121SKalle Valo sta->tfd_queue_msk = qmask; 2059ced19f26SSara Sharon sta->type = type; 2060e705c121SKalle Valo 2061e705c121SKalle Valo /* put a non-NULL value so iterating over the stations won't stop */ 2062e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta->sta_id], ERR_PTR(-EINVAL)); 2063e705c121SKalle Valo return 0; 2064e705c121SKalle Valo } 2065e705c121SKalle Valo 206626d6c16bSSara Sharon void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta) 2067e705c121SKalle Valo { 2068e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta->sta_id], NULL); 2069e705c121SKalle Valo memset(sta, 0, sizeof(struct iwl_mvm_int_sta)); 20700ae98812SSara Sharon sta->sta_id = IWL_MVM_INVALID_STA; 2071e705c121SKalle Valo } 2072e705c121SKalle Valo 207391cf5dedSJohannes Berg static void iwl_mvm_enable_aux_snif_queue(struct iwl_mvm *mvm, u16 queue, 2074b13f43a4SEmmanuel Grumbach u8 sta_id, u8 fifo) 2075e705c121SKalle Valo { 20769617040eSEmmanuel Grumbach unsigned int wdg_timeout = 20779617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout; 207828d0793eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 2079b13f43a4SEmmanuel Grumbach .fifo = fifo, 2080b13f43a4SEmmanuel Grumbach .sta_id = sta_id, 208128d0793eSLiad Kaufman .tid = IWL_MAX_TID_COUNT, 208228d0793eSLiad Kaufman .aggregate = false, 208328d0793eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 208428d0793eSLiad Kaufman }; 208528d0793eSLiad Kaufman 208691cf5dedSJohannes Berg WARN_ON(iwl_mvm_has_new_tx_api(mvm)); 208791cf5dedSJohannes Berg 208891cf5dedSJohannes Berg iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 208928d0793eSLiad Kaufman } 209091cf5dedSJohannes Berg 209191cf5dedSJohannes Berg static int iwl_mvm_enable_aux_snif_queue_tvqm(struct iwl_mvm *mvm, u8 sta_id) 209291cf5dedSJohannes Berg { 20939617040eSEmmanuel Grumbach unsigned int wdg_timeout = 20949617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout; 209591cf5dedSJohannes Berg 209691cf5dedSJohannes Berg WARN_ON(!iwl_mvm_has_new_tx_api(mvm)); 209791cf5dedSJohannes Berg 209809369983SJohannes Berg return iwl_mvm_tvqm_enable_txq(mvm, NULL, sta_id, IWL_MAX_TID_COUNT, 209991cf5dedSJohannes Berg wdg_timeout); 210091cf5dedSJohannes Berg } 210191cf5dedSJohannes Berg 210291cf5dedSJohannes Berg static int iwl_mvm_add_int_sta_with_queue(struct iwl_mvm *mvm, int macidx, 2103be82ecd3SAvraham Stern int maccolor, u8 *addr, 210491cf5dedSJohannes Berg struct iwl_mvm_int_sta *sta, 210591cf5dedSJohannes Berg u16 *queue, int fifo) 210691cf5dedSJohannes Berg { 210791cf5dedSJohannes Berg int ret; 210891cf5dedSJohannes Berg 210991cf5dedSJohannes Berg /* Map queue to fifo - needs to happen before adding station */ 211091cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) 211191cf5dedSJohannes Berg iwl_mvm_enable_aux_snif_queue(mvm, *queue, sta->sta_id, fifo); 211291cf5dedSJohannes Berg 2113be82ecd3SAvraham Stern ret = iwl_mvm_add_int_sta_common(mvm, sta, addr, macidx, maccolor); 211491cf5dedSJohannes Berg if (ret) { 211591cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) 2116c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, sta->sta_id, queue, 211764ff7eb0SJohannes Berg IWL_MAX_TID_COUNT); 211891cf5dedSJohannes Berg return ret; 211991cf5dedSJohannes Berg } 212091cf5dedSJohannes Berg 212191cf5dedSJohannes Berg /* 212291cf5dedSJohannes Berg * For 22000 firmware and on we cannot add queue to a station unknown 212391cf5dedSJohannes Berg * to firmware so enable queue here - after the station was added 212491cf5dedSJohannes Berg */ 212591cf5dedSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) { 212691cf5dedSJohannes Berg int txq; 212791cf5dedSJohannes Berg 212891cf5dedSJohannes Berg txq = iwl_mvm_enable_aux_snif_queue_tvqm(mvm, sta->sta_id); 212991cf5dedSJohannes Berg if (txq < 0) { 213091cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, sta->sta_id); 213191cf5dedSJohannes Berg return txq; 213291cf5dedSJohannes Berg } 213391cf5dedSJohannes Berg 213491cf5dedSJohannes Berg *queue = txq; 213591cf5dedSJohannes Berg } 213691cf5dedSJohannes Berg 213791cf5dedSJohannes Berg return 0; 2138c5a719eeSSara Sharon } 2139c5a719eeSSara Sharon 21402c2c3647SNathan Errera int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm, u32 lmac_id) 2141c5a719eeSSara Sharon { 2142c5a719eeSSara Sharon int ret; 2143c5a719eeSSara Sharon 2144c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2145c5a719eeSSara Sharon 2146c5a719eeSSara Sharon /* Allocate aux station and assign to it the aux queue */ 2147c5a719eeSSara Sharon ret = iwl_mvm_allocate_int_sta(mvm, &mvm->aux_sta, BIT(mvm->aux_queue), 2148ced19f26SSara Sharon NL80211_IFTYPE_UNSPECIFIED, 2149ced19f26SSara Sharon IWL_STA_AUX_ACTIVITY); 2150c5a719eeSSara Sharon if (ret) 2151c5a719eeSSara Sharon return ret; 2152c5a719eeSSara Sharon 21532c2c3647SNathan Errera /* 21542c2c3647SNathan Errera * In CDB NICs we need to specify which lmac to use for aux activity 21552c2c3647SNathan Errera * using the mac_id argument place to send lmac_id to the function 21562c2c3647SNathan Errera */ 21572c2c3647SNathan Errera ret = iwl_mvm_add_int_sta_with_queue(mvm, lmac_id, 0, NULL, 215891cf5dedSJohannes Berg &mvm->aux_sta, &mvm->aux_queue, 2159b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_MCAST); 2160c5a719eeSSara Sharon if (ret) { 2161e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2162e705c121SKalle Valo return ret; 2163e705c121SKalle Valo } 2164e705c121SKalle Valo 2165c5a719eeSSara Sharon return 0; 2166c5a719eeSSara Sharon } 2167c5a719eeSSara Sharon 21680e39eb03SChaya Rachel Ivgi int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 21690e39eb03SChaya Rachel Ivgi { 21700e39eb03SChaya Rachel Ivgi struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 21710e39eb03SChaya Rachel Ivgi 21720e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 2173b13f43a4SEmmanuel Grumbach 217491cf5dedSJohannes Berg return iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id, mvmvif->color, 2175be82ecd3SAvraham Stern NULL, &mvm->snif_sta, 2176be82ecd3SAvraham Stern &mvm->snif_queue, 2177b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_BE); 21780e39eb03SChaya Rachel Ivgi } 21790e39eb03SChaya Rachel Ivgi 21800e39eb03SChaya Rachel Ivgi int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 21810e39eb03SChaya Rachel Ivgi { 21820e39eb03SChaya Rachel Ivgi int ret; 21830e39eb03SChaya Rachel Ivgi 21840e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 21850e39eb03SChaya Rachel Ivgi 2186e223e42aSGregory Greenman if (WARN_ON_ONCE(mvm->snif_sta.sta_id == IWL_MVM_INVALID_STA)) 2187e223e42aSGregory Greenman return -EINVAL; 2188e223e42aSGregory Greenman 2189c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, mvm->snif_sta.sta_id, 2190c5a976cfSJohannes Berg &mvm->snif_queue, IWL_MAX_TID_COUNT); 21910e39eb03SChaya Rachel Ivgi ret = iwl_mvm_rm_sta_common(mvm, mvm->snif_sta.sta_id); 21920e39eb03SChaya Rachel Ivgi if (ret) 21930e39eb03SChaya Rachel Ivgi IWL_WARN(mvm, "Failed sending remove station\n"); 21940e39eb03SChaya Rachel Ivgi 21950e39eb03SChaya Rachel Ivgi return ret; 21960e39eb03SChaya Rachel Ivgi } 21970e39eb03SChaya Rachel Ivgi 2198f327236dSSharon int iwl_mvm_rm_aux_sta(struct iwl_mvm *mvm) 2199f327236dSSharon { 2200f327236dSSharon int ret; 2201f327236dSSharon 2202f327236dSSharon lockdep_assert_held(&mvm->mutex); 2203f327236dSSharon 2204e223e42aSGregory Greenman if (WARN_ON_ONCE(mvm->aux_sta.sta_id == IWL_MVM_INVALID_STA)) 2205e223e42aSGregory Greenman return -EINVAL; 2206e223e42aSGregory Greenman 2207c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, mvm->aux_sta.sta_id, 2208c5a976cfSJohannes Berg &mvm->aux_queue, IWL_MAX_TID_COUNT); 2209f327236dSSharon ret = iwl_mvm_rm_sta_common(mvm, mvm->aux_sta.sta_id); 2210f327236dSSharon if (ret) 2211f327236dSSharon IWL_WARN(mvm, "Failed sending remove station\n"); 2212f327236dSSharon iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2213f327236dSSharon 2214f327236dSSharon return ret; 2215f327236dSSharon } 2216f327236dSSharon 22170e39eb03SChaya Rachel Ivgi void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm) 22180e39eb03SChaya Rachel Ivgi { 22190e39eb03SChaya Rachel Ivgi iwl_mvm_dealloc_int_sta(mvm, &mvm->snif_sta); 22200e39eb03SChaya Rachel Ivgi } 22210e39eb03SChaya Rachel Ivgi 2222e705c121SKalle Valo /* 2223e705c121SKalle Valo * Send the add station command for the vif's broadcast station. 2224e705c121SKalle Valo * Assumes that the station was already allocated. 2225e705c121SKalle Valo * 2226e705c121SKalle Valo * @mvm: the mvm component 2227e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2228e705c121SKalle Valo * @bsta: the broadcast station to add. 2229e705c121SKalle Valo */ 2230e705c121SKalle Valo int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2231e705c121SKalle Valo { 2232e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2233650cadb7SGregory Greenman struct iwl_mvm_int_sta *bsta = &mvmvif->deflink.bcast_sta; 2234e705c121SKalle Valo static const u8 _baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; 2235e705c121SKalle Valo const u8 *baddr = _baddr; 22367daa7624SJohannes Berg int queue; 2237df88c08dSLiad Kaufman int ret; 2238c5a719eeSSara Sharon unsigned int wdg_timeout = 2239c5a719eeSSara Sharon iwl_mvm_get_wd_timeout(mvm, vif, false, false); 2240de24f638SLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 2241de24f638SLiad Kaufman .fifo = IWL_MVM_TX_FIFO_VO, 2242650cadb7SGregory Greenman .sta_id = mvmvif->deflink.bcast_sta.sta_id, 2243de24f638SLiad Kaufman .tid = IWL_MAX_TID_COUNT, 2244de24f638SLiad Kaufman .aggregate = false, 2245de24f638SLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 2246de24f638SLiad Kaufman }; 2247de24f638SLiad Kaufman 2248c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2249c5a719eeSSara Sharon 2250c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 22514d339989SLiad Kaufman if (vif->type == NL80211_IFTYPE_AP || 2252f8510d67SNathan Chancellor vif->type == NL80211_IFTYPE_ADHOC) { 225349f71713SSara Sharon queue = mvm->probe_queue; 2254f8510d67SNathan Chancellor } else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 225549f71713SSara Sharon queue = mvm->p2p_dev_queue; 2256f8510d67SNathan Chancellor } else { 2257f8510d67SNathan Chancellor WARN(1, "Missing required TXQ for adding bcast STA\n"); 2258de24f638SLiad Kaufman return -EINVAL; 2259f8510d67SNathan Chancellor } 2260de24f638SLiad Kaufman 2261df88c08dSLiad Kaufman bsta->tfd_queue_msk |= BIT(queue); 2262c5a719eeSSara Sharon 2263cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 2264de24f638SLiad Kaufman } 2265de24f638SLiad Kaufman 2266e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_ADHOC) 2267e705c121SKalle Valo baddr = vif->bss_conf.bssid; 2268e705c121SKalle Valo 22690ae98812SSara Sharon if (WARN_ON_ONCE(bsta->sta_id == IWL_MVM_INVALID_STA)) 2270e705c121SKalle Valo return -ENOSPC; 2271e705c121SKalle Valo 2272df88c08dSLiad Kaufman ret = iwl_mvm_add_int_sta_common(mvm, bsta, baddr, 2273e705c121SKalle Valo mvmvif->id, mvmvif->color); 2274df88c08dSLiad Kaufman if (ret) 2275df88c08dSLiad Kaufman return ret; 2276df88c08dSLiad Kaufman 2277df88c08dSLiad Kaufman /* 22782f7a3863SLuca Coelho * For 22000 firmware and on we cannot add queue to a station unknown 2279c5a719eeSSara Sharon * to firmware so enable queue here - after the station was added 2280df88c08dSLiad Kaufman */ 2281310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 228209369983SJohannes Berg queue = iwl_mvm_tvqm_enable_txq(mvm, NULL, bsta->sta_id, 2283310181ecSSara Sharon IWL_MAX_TID_COUNT, 2284c5a719eeSSara Sharon wdg_timeout); 228591cf5dedSJohannes Berg if (queue < 0) { 228691cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, bsta->sta_id); 228791cf5dedSJohannes Berg return queue; 228891cf5dedSJohannes Berg } 22897daa7624SJohannes Berg 22907b758a11SLuca Coelho if (vif->type == NL80211_IFTYPE_AP || 22917b758a11SLuca Coelho vif->type == NL80211_IFTYPE_ADHOC) 2292310181ecSSara Sharon mvm->probe_queue = queue; 2293310181ecSSara Sharon else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 2294310181ecSSara Sharon mvm->p2p_dev_queue = queue; 2295310181ecSSara Sharon } 2296df88c08dSLiad Kaufman 2297df88c08dSLiad Kaufman return 0; 2298df88c08dSLiad Kaufman } 2299df88c08dSLiad Kaufman 230060efeca1SMiri Korenblit void iwl_mvm_free_bcast_sta_queues(struct iwl_mvm *mvm, 2301df88c08dSLiad Kaufman struct ieee80211_vif *vif) 2302df88c08dSLiad Kaufman { 2303df88c08dSLiad Kaufman struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2304c6ce1c74SJohannes Berg u16 *queueptr, queue; 2305df88c08dSLiad Kaufman 2306df88c08dSLiad Kaufman lockdep_assert_held(&mvm->mutex); 2307df88c08dSLiad Kaufman 2308650cadb7SGregory Greenman iwl_mvm_flush_sta(mvm, &mvmvif->deflink.bcast_sta, true); 2309d49394a1SSara Sharon 2310d167e81aSMordechai Goodstein switch (vif->type) { 2311d167e81aSMordechai Goodstein case NL80211_IFTYPE_AP: 2312d167e81aSMordechai Goodstein case NL80211_IFTYPE_ADHOC: 2313c6ce1c74SJohannes Berg queueptr = &mvm->probe_queue; 2314d167e81aSMordechai Goodstein break; 2315d167e81aSMordechai Goodstein case NL80211_IFTYPE_P2P_DEVICE: 2316c6ce1c74SJohannes Berg queueptr = &mvm->p2p_dev_queue; 2317d167e81aSMordechai Goodstein break; 2318d167e81aSMordechai Goodstein default: 2319d167e81aSMordechai Goodstein WARN(1, "Can't free bcast queue on vif type %d\n", 2320d167e81aSMordechai Goodstein vif->type); 2321d167e81aSMordechai Goodstein return; 2322df88c08dSLiad Kaufman } 2323df88c08dSLiad Kaufman 2324c6ce1c74SJohannes Berg queue = *queueptr; 2325650cadb7SGregory Greenman iwl_mvm_disable_txq(mvm, NULL, mvmvif->deflink.bcast_sta.sta_id, 2326c5a976cfSJohannes Berg queueptr, IWL_MAX_TID_COUNT); 2327d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) 2328d167e81aSMordechai Goodstein return; 2329d167e81aSMordechai Goodstein 2330650cadb7SGregory Greenman WARN_ON(!(mvmvif->deflink.bcast_sta.tfd_queue_msk & BIT(queue))); 2331650cadb7SGregory Greenman mvmvif->deflink.bcast_sta.tfd_queue_msk &= ~BIT(queue); 2332e705c121SKalle Valo } 2333e705c121SKalle Valo 2334e705c121SKalle Valo /* Send the FW a request to remove the station from it's internal data 2335e705c121SKalle Valo * structures, but DO NOT remove the entry from the local data structures. */ 2336e705c121SKalle Valo int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2337e705c121SKalle Valo { 2338e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2339e705c121SKalle Valo int ret; 2340e705c121SKalle Valo 2341e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2342e705c121SKalle Valo 2343df88c08dSLiad Kaufman iwl_mvm_free_bcast_sta_queues(mvm, vif); 2344df88c08dSLiad Kaufman 2345650cadb7SGregory Greenman ret = iwl_mvm_rm_sta_common(mvm, mvmvif->deflink.bcast_sta.sta_id); 2346e705c121SKalle Valo if (ret) 2347e705c121SKalle Valo IWL_WARN(mvm, "Failed sending remove station\n"); 2348e705c121SKalle Valo return ret; 2349e705c121SKalle Valo } 2350e705c121SKalle Valo 2351e705c121SKalle Valo int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2352e705c121SKalle Valo { 2353e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2354e705c121SKalle Valo 2355e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2356e705c121SKalle Valo 2357650cadb7SGregory Greenman return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.bcast_sta, 0, 2358ced19f26SSara Sharon ieee80211_vif_type_p2p(vif), 2359ced19f26SSara Sharon IWL_STA_GENERAL_PURPOSE); 2360e705c121SKalle Valo } 2361e705c121SKalle Valo 2362e705c121SKalle Valo /* Allocate a new station entry for the broadcast station to the given vif, 2363e705c121SKalle Valo * and send it to the FW. 2364e705c121SKalle Valo * Note that each P2P mac should have its own broadcast station. 2365e705c121SKalle Valo * 2366e705c121SKalle Valo * @mvm: the mvm component 2367e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2368e705c121SKalle Valo * @bsta: the broadcast station to add. */ 2369d197358bSLuca Coelho int iwl_mvm_add_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2370e705c121SKalle Valo { 2371e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2372650cadb7SGregory Greenman struct iwl_mvm_int_sta *bsta = &mvmvif->deflink.bcast_sta; 2373e705c121SKalle Valo int ret; 2374e705c121SKalle Valo 2375e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2376e705c121SKalle Valo 2377e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 2378e705c121SKalle Valo if (ret) 2379e705c121SKalle Valo return ret; 2380e705c121SKalle Valo 2381e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2382e705c121SKalle Valo 2383e705c121SKalle Valo if (ret) 2384e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, bsta); 2385e705c121SKalle Valo 2386e705c121SKalle Valo return ret; 2387e705c121SKalle Valo } 2388e705c121SKalle Valo 2389e705c121SKalle Valo void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2390e705c121SKalle Valo { 2391e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2392e705c121SKalle Valo 2393650cadb7SGregory Greenman iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.bcast_sta); 2394e705c121SKalle Valo } 2395e705c121SKalle Valo 2396e705c121SKalle Valo /* 2397e705c121SKalle Valo * Send the FW a request to remove the station from it's internal data 2398e705c121SKalle Valo * structures, and in addition remove it from the local data structure. 2399e705c121SKalle Valo */ 2400d197358bSLuca Coelho int iwl_mvm_rm_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2401e705c121SKalle Valo { 2402e705c121SKalle Valo int ret; 2403e705c121SKalle Valo 2404e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2405e705c121SKalle Valo 2406e705c121SKalle Valo ret = iwl_mvm_send_rm_bcast_sta(mvm, vif); 2407e705c121SKalle Valo 2408e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif); 2409e705c121SKalle Valo 2410e705c121SKalle Valo return ret; 2411e705c121SKalle Valo } 2412e705c121SKalle Valo 241326d6c16bSSara Sharon /* 241426d6c16bSSara Sharon * Allocate a new station entry for the multicast station to the given vif, 241526d6c16bSSara Sharon * and send it to the FW. 241626d6c16bSSara Sharon * Note that each AP/GO mac should have its own multicast station. 241726d6c16bSSara Sharon * 241826d6c16bSSara Sharon * @mvm: the mvm component 241926d6c16bSSara Sharon * @vif: the interface to which the multicast station is added 242026d6c16bSSara Sharon */ 242126d6c16bSSara Sharon int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 242226d6c16bSSara Sharon { 242326d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2424650cadb7SGregory Greenman struct iwl_mvm_int_sta *msta = &mvmvif->deflink.mcast_sta; 242526d6c16bSSara Sharon static const u8 _maddr[] = {0x03, 0x00, 0x00, 0x00, 0x00, 0x00}; 242626d6c16bSSara Sharon const u8 *maddr = _maddr; 242726d6c16bSSara Sharon struct iwl_trans_txq_scd_cfg cfg = { 2428192a7e1fSJohannes Berg .fifo = vif->type == NL80211_IFTYPE_AP ? 2429192a7e1fSJohannes Berg IWL_MVM_TX_FIFO_MCAST : IWL_MVM_TX_FIFO_BE, 243026d6c16bSSara Sharon .sta_id = msta->sta_id, 24316508de03SIlan Peer .tid = 0, 243226d6c16bSSara Sharon .aggregate = false, 243326d6c16bSSara Sharon .frame_limit = IWL_FRAME_LIMIT, 243426d6c16bSSara Sharon }; 243526d6c16bSSara Sharon unsigned int timeout = iwl_mvm_get_wd_timeout(mvm, vif, false, false); 243626d6c16bSSara Sharon int ret; 243726d6c16bSSara Sharon 243826d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 243926d6c16bSSara Sharon 2440ee48b722SLiad Kaufman if (WARN_ON(vif->type != NL80211_IFTYPE_AP && 2441ee48b722SLiad Kaufman vif->type != NL80211_IFTYPE_ADHOC)) 244226d6c16bSSara Sharon return -ENOTSUPP; 244326d6c16bSSara Sharon 2444ced19f26SSara Sharon /* 2445fc07bd8cSSara Sharon * In IBSS, ieee80211_check_queues() sets the cab_queue to be 2446fc07bd8cSSara Sharon * invalid, so make sure we use the queue we want. 2447fc07bd8cSSara Sharon * Note that this is done here as we want to avoid making DQA 2448fc07bd8cSSara Sharon * changes in mac80211 layer. 2449fc07bd8cSSara Sharon */ 2450cfbc6c4cSSara Sharon if (vif->type == NL80211_IFTYPE_ADHOC) 2451650cadb7SGregory Greenman mvmvif->deflink.cab_queue = IWL_MVM_DQA_GCAST_QUEUE; 2452fc07bd8cSSara Sharon 2453fc07bd8cSSara Sharon /* 2454ced19f26SSara Sharon * While in previous FWs we had to exclude cab queue from TFD queue 2455ced19f26SSara Sharon * mask, now it is needed as any other queue. 2456ced19f26SSara Sharon */ 2457ced19f26SSara Sharon if (!iwl_mvm_has_new_tx_api(mvm) && 2458ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2459650cadb7SGregory Greenman iwl_mvm_enable_txq(mvm, NULL, mvmvif->deflink.cab_queue, 0, 2460650cadb7SGregory Greenman &cfg, 2461cfbc6c4cSSara Sharon timeout); 2462650cadb7SGregory Greenman msta->tfd_queue_msk |= BIT(mvmvif->deflink.cab_queue); 2463ced19f26SSara Sharon } 246426d6c16bSSara Sharon ret = iwl_mvm_add_int_sta_common(mvm, msta, maddr, 246526d6c16bSSara Sharon mvmvif->id, mvmvif->color); 246691cf5dedSJohannes Berg if (ret) 246791cf5dedSJohannes Berg goto err; 246826d6c16bSSara Sharon 246926d6c16bSSara Sharon /* 247026d6c16bSSara Sharon * Enable cab queue after the ADD_STA command is sent. 24712f7a3863SLuca Coelho * This is needed for 22000 firmware which won't accept SCD_QUEUE_CFG 2472ced19f26SSara Sharon * command with unknown station id, and for FW that doesn't support 2473ced19f26SSara Sharon * station API since the cab queue is not included in the 2474ced19f26SSara Sharon * tfd_queue_mask. 247526d6c16bSSara Sharon */ 2476310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 247709369983SJohannes Berg int queue = iwl_mvm_tvqm_enable_txq(mvm, NULL, msta->sta_id, 247809369983SJohannes Berg 0, timeout); 247991cf5dedSJohannes Berg if (queue < 0) { 248091cf5dedSJohannes Berg ret = queue; 248191cf5dedSJohannes Berg goto err; 248291cf5dedSJohannes Berg } 2483650cadb7SGregory Greenman mvmvif->deflink.cab_queue = queue; 2484ced19f26SSara Sharon } else if (!fw_has_api(&mvm->fw->ucode_capa, 2485fc07bd8cSSara Sharon IWL_UCODE_TLV_API_STA_TYPE)) 2486650cadb7SGregory Greenman iwl_mvm_enable_txq(mvm, NULL, mvmvif->deflink.cab_queue, 0, 2487650cadb7SGregory Greenman &cfg, 2488cfbc6c4cSSara Sharon timeout); 248926d6c16bSSara Sharon 249026d6c16bSSara Sharon return 0; 249191cf5dedSJohannes Berg err: 249291cf5dedSJohannes Berg iwl_mvm_dealloc_int_sta(mvm, msta); 249391cf5dedSJohannes Berg return ret; 249426d6c16bSSara Sharon } 249526d6c16bSSara Sharon 249628916a16SEmmanuel Grumbach static int __iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, u8 sta_id, 249728916a16SEmmanuel Grumbach struct ieee80211_key_conf *keyconf, 249828916a16SEmmanuel Grumbach bool mcast) 249928916a16SEmmanuel Grumbach { 250028916a16SEmmanuel Grumbach union { 250128916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 250228916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd cmd; 250328916a16SEmmanuel Grumbach } u = {}; 250428916a16SEmmanuel Grumbach bool new_api = fw_has_api(&mvm->fw->ucode_capa, 250528916a16SEmmanuel Grumbach IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 250628916a16SEmmanuel Grumbach __le16 key_flags; 250728916a16SEmmanuel Grumbach int ret, size; 250828916a16SEmmanuel Grumbach u32 status; 250928916a16SEmmanuel Grumbach 251028916a16SEmmanuel Grumbach /* This is a valid situation for GTK removal */ 251128916a16SEmmanuel Grumbach if (sta_id == IWL_MVM_INVALID_STA) 251228916a16SEmmanuel Grumbach return 0; 251328916a16SEmmanuel Grumbach 251428916a16SEmmanuel Grumbach key_flags = cpu_to_le16((keyconf->keyidx << STA_KEY_FLG_KEYID_POS) & 251528916a16SEmmanuel Grumbach STA_KEY_FLG_KEYID_MSK); 251628916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_FLG_NO_ENC | STA_KEY_FLG_WEP_KEY_MAP); 251728916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_NOT_VALID); 251828916a16SEmmanuel Grumbach 251928916a16SEmmanuel Grumbach if (mcast) 252028916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 252128916a16SEmmanuel Grumbach 252228916a16SEmmanuel Grumbach /* 252328916a16SEmmanuel Grumbach * The fields assigned here are in the same location at the start 252428916a16SEmmanuel Grumbach * of the command, so we can do this union trick. 252528916a16SEmmanuel Grumbach */ 252628916a16SEmmanuel Grumbach u.cmd.common.key_flags = key_flags; 252728916a16SEmmanuel Grumbach u.cmd.common.key_offset = keyconf->hw_key_idx; 252828916a16SEmmanuel Grumbach u.cmd.common.sta_id = sta_id; 252928916a16SEmmanuel Grumbach 253028916a16SEmmanuel Grumbach size = new_api ? sizeof(u.cmd) : sizeof(u.cmd_v1); 253128916a16SEmmanuel Grumbach 253228916a16SEmmanuel Grumbach status = ADD_STA_SUCCESS; 253328916a16SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, &u.cmd, 253428916a16SEmmanuel Grumbach &status); 253528916a16SEmmanuel Grumbach 253628916a16SEmmanuel Grumbach switch (status) { 253728916a16SEmmanuel Grumbach case ADD_STA_SUCCESS: 253828916a16SEmmanuel Grumbach IWL_DEBUG_WEP(mvm, "MODIFY_STA: remove sta key passed\n"); 253928916a16SEmmanuel Grumbach break; 254028916a16SEmmanuel Grumbach default: 254128916a16SEmmanuel Grumbach ret = -EIO; 254228916a16SEmmanuel Grumbach IWL_ERR(mvm, "MODIFY_STA: remove sta key failed\n"); 254328916a16SEmmanuel Grumbach break; 254428916a16SEmmanuel Grumbach } 254528916a16SEmmanuel Grumbach 254628916a16SEmmanuel Grumbach return ret; 254728916a16SEmmanuel Grumbach } 254828916a16SEmmanuel Grumbach 254926d6c16bSSara Sharon /* 255026d6c16bSSara Sharon * Send the FW a request to remove the station from it's internal data 255126d6c16bSSara Sharon * structures, and in addition remove it from the local data structure. 255226d6c16bSSara Sharon */ 255326d6c16bSSara Sharon int iwl_mvm_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 255426d6c16bSSara Sharon { 255526d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 255626d6c16bSSara Sharon int ret; 255726d6c16bSSara Sharon 255826d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 255926d6c16bSSara Sharon 2560650cadb7SGregory Greenman iwl_mvm_flush_sta(mvm, &mvmvif->deflink.mcast_sta, true); 2561d49394a1SSara Sharon 2562650cadb7SGregory Greenman iwl_mvm_disable_txq(mvm, NULL, mvmvif->deflink.mcast_sta.sta_id, 2563650cadb7SGregory Greenman &mvmvif->deflink.cab_queue, 0); 256426d6c16bSSara Sharon 2565650cadb7SGregory Greenman ret = iwl_mvm_rm_sta_common(mvm, mvmvif->deflink.mcast_sta.sta_id); 256626d6c16bSSara Sharon if (ret) 256726d6c16bSSara Sharon IWL_WARN(mvm, "Failed sending remove station\n"); 256826d6c16bSSara Sharon 256926d6c16bSSara Sharon return ret; 257026d6c16bSSara Sharon } 257126d6c16bSSara Sharon 2572b915c101SSara Sharon static void iwl_mvm_sync_rxq_del_ba(struct iwl_mvm *mvm, u8 baid) 257310b2b201SSara Sharon { 25745e1688ceSJohannes Berg struct iwl_mvm_delba_data notif = { 25755e1688ceSJohannes Berg .baid = baid, 2576b915c101SSara Sharon }; 25775e1688ceSJohannes Berg 25785e1688ceSJohannes Berg iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_NOTIF_DEL_BA, true, 25795e1688ceSJohannes Berg ¬if, sizeof(notif)); 258010b2b201SSara Sharon }; 258110b2b201SSara Sharon 2582b915c101SSara Sharon static void iwl_mvm_free_reorder(struct iwl_mvm *mvm, 2583b915c101SSara Sharon struct iwl_mvm_baid_data *data) 2584b915c101SSara Sharon { 2585b915c101SSara Sharon int i; 2586b915c101SSara Sharon 2587b915c101SSara Sharon iwl_mvm_sync_rxq_del_ba(mvm, data->baid); 2588b915c101SSara Sharon 2589b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2590b915c101SSara Sharon int j; 2591b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2592b915c101SSara Sharon &data->reorder_buf[i]; 2593dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2594dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2595b915c101SSara Sharon 25960690405fSSara Sharon spin_lock_bh(&reorder_buf->lock); 25970690405fSSara Sharon if (likely(!reorder_buf->num_stored)) { 25980690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 2599b915c101SSara Sharon continue; 26000690405fSSara Sharon } 2601b915c101SSara Sharon 2602b915c101SSara Sharon /* 2603b915c101SSara Sharon * This shouldn't happen in regular DELBA since the internal 2604b915c101SSara Sharon * delBA notification should trigger a release of all frames in 2605b915c101SSara Sharon * the reorder buffer. 2606b915c101SSara Sharon */ 2607b915c101SSara Sharon WARN_ON(1); 2608b915c101SSara Sharon 2609b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2610dfdddd92SJohannes Berg __skb_queue_purge(&entries[j].e.frames); 26110690405fSSara Sharon /* 26120690405fSSara Sharon * Prevent timer re-arm. This prevents a very far fetched case 26130690405fSSara Sharon * where we timed out on the notification. There may be prior 26140690405fSSara Sharon * RX frames pending in the RX queue before the notification 26150690405fSSara Sharon * that might get processed between now and the actual deletion 26160690405fSSara Sharon * and we would re-arm the timer although we are deleting the 26170690405fSSara Sharon * reorder buffer. 26180690405fSSara Sharon */ 26190690405fSSara Sharon reorder_buf->removed = true; 26200690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 26210690405fSSara Sharon del_timer_sync(&reorder_buf->reorder_timer); 2622b915c101SSara Sharon } 2623b915c101SSara Sharon } 2624b915c101SSara Sharon 2625b915c101SSara Sharon static void iwl_mvm_init_reorder_buffer(struct iwl_mvm *mvm, 2626b915c101SSara Sharon struct iwl_mvm_baid_data *data, 2627514c3069SLuca Coelho u16 ssn, u16 buf_size) 2628b915c101SSara Sharon { 2629b915c101SSara Sharon int i; 2630b915c101SSara Sharon 2631b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2632b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2633b915c101SSara Sharon &data->reorder_buf[i]; 2634dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2635dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2636b915c101SSara Sharon int j; 2637b915c101SSara Sharon 2638b915c101SSara Sharon reorder_buf->num_stored = 0; 2639b915c101SSara Sharon reorder_buf->head_sn = ssn; 2640b915c101SSara Sharon reorder_buf->buf_size = buf_size; 26410690405fSSara Sharon /* rx reorder timer */ 26428cef5344SKees Cook timer_setup(&reorder_buf->reorder_timer, 26438cef5344SKees Cook iwl_mvm_reorder_timer_expired, 0); 26440690405fSSara Sharon spin_lock_init(&reorder_buf->lock); 26450690405fSSara Sharon reorder_buf->mvm = mvm; 2646b915c101SSara Sharon reorder_buf->queue = i; 26475d43eab6SSara Sharon reorder_buf->valid = false; 2648b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2649dfdddd92SJohannes Berg __skb_queue_head_init(&entries[j].e.frames); 2650b915c101SSara Sharon } 265110b2b201SSara Sharon } 265210b2b201SSara Sharon 265397f70c56SJohannes Berg static int iwl_mvm_fw_baid_op_sta(struct iwl_mvm *mvm, 265497f70c56SJohannes Berg struct iwl_mvm_sta *mvm_sta, 265597f70c56SJohannes Berg bool start, int tid, u16 ssn, 265697f70c56SJohannes Berg u16 buf_size) 26570f3a4e48SJohannes Berg { 26580f3a4e48SJohannes Berg struct iwl_mvm_add_sta_cmd cmd = { 26590f3a4e48SJohannes Berg .mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color), 2660*c8ee33e1SGregory Greenman .sta_id = mvm_sta->deflink.sta_id, 26610f3a4e48SJohannes Berg .add_modify = STA_MODE_MODIFY, 26620f3a4e48SJohannes Berg }; 26630f3a4e48SJohannes Berg u32 status; 26640f3a4e48SJohannes Berg int ret; 26650f3a4e48SJohannes Berg 26660f3a4e48SJohannes Berg if (start) { 26670f3a4e48SJohannes Berg cmd.add_immediate_ba_tid = tid; 26680f3a4e48SJohannes Berg cmd.add_immediate_ba_ssn = cpu_to_le16(ssn); 26690f3a4e48SJohannes Berg cmd.rx_ba_window = cpu_to_le16(buf_size); 26700f3a4e48SJohannes Berg cmd.modify_mask = STA_MODIFY_ADD_BA_TID; 26710f3a4e48SJohannes Berg } else { 26720f3a4e48SJohannes Berg cmd.remove_immediate_ba_tid = tid; 26730f3a4e48SJohannes Berg cmd.modify_mask = STA_MODIFY_REMOVE_BA_TID; 26740f3a4e48SJohannes Berg } 26750f3a4e48SJohannes Berg 26760f3a4e48SJohannes Berg status = ADD_STA_SUCCESS; 26770f3a4e48SJohannes Berg ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 26780f3a4e48SJohannes Berg iwl_mvm_add_sta_cmd_size(mvm), 26790f3a4e48SJohannes Berg &cmd, &status); 26800f3a4e48SJohannes Berg if (ret) 26810f3a4e48SJohannes Berg return ret; 26820f3a4e48SJohannes Berg 26830f3a4e48SJohannes Berg switch (status & IWL_ADD_STA_STATUS_MASK) { 26840f3a4e48SJohannes Berg case ADD_STA_SUCCESS: 26850f3a4e48SJohannes Berg IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n", 26860f3a4e48SJohannes Berg start ? "start" : "stopp"); 26870f3a4e48SJohannes Berg if (WARN_ON(start && iwl_mvm_has_new_rx_api(mvm) && 26880f3a4e48SJohannes Berg !(status & IWL_ADD_STA_BAID_VALID_MASK))) 26890f3a4e48SJohannes Berg return -EINVAL; 26900f3a4e48SJohannes Berg return u32_get_bits(status, IWL_ADD_STA_BAID_MASK); 26910f3a4e48SJohannes Berg case ADD_STA_IMMEDIATE_BA_FAILURE: 26920f3a4e48SJohannes Berg IWL_WARN(mvm, "RX BA Session refused by fw\n"); 26930f3a4e48SJohannes Berg return -ENOSPC; 26940f3a4e48SJohannes Berg default: 26950f3a4e48SJohannes Berg IWL_ERR(mvm, "RX BA Session failed %sing, status 0x%x\n", 26960f3a4e48SJohannes Berg start ? "start" : "stopp", status); 26970f3a4e48SJohannes Berg return -EIO; 26980f3a4e48SJohannes Berg } 26990f3a4e48SJohannes Berg } 27000f3a4e48SJohannes Berg 270197f70c56SJohannes Berg static int iwl_mvm_fw_baid_op_cmd(struct iwl_mvm *mvm, 270297f70c56SJohannes Berg struct iwl_mvm_sta *mvm_sta, 270397f70c56SJohannes Berg bool start, int tid, u16 ssn, 270497f70c56SJohannes Berg u16 buf_size, int baid) 270597f70c56SJohannes Berg { 270697f70c56SJohannes Berg struct iwl_rx_baid_cfg_cmd cmd = { 270797f70c56SJohannes Berg .action = start ? cpu_to_le32(IWL_RX_BAID_ACTION_ADD) : 270897f70c56SJohannes Berg cpu_to_le32(IWL_RX_BAID_ACTION_REMOVE), 270997f70c56SJohannes Berg }; 271097f70c56SJohannes Berg u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, RX_BAID_ALLOCATION_CONFIG_CMD); 271197f70c56SJohannes Berg int ret; 271297f70c56SJohannes Berg 271397f70c56SJohannes Berg BUILD_BUG_ON(sizeof(struct iwl_rx_baid_cfg_resp) != sizeof(baid)); 271497f70c56SJohannes Berg 271597f70c56SJohannes Berg if (start) { 2716*c8ee33e1SGregory Greenman cmd.alloc.sta_id_mask = 2717*c8ee33e1SGregory Greenman cpu_to_le32(BIT(mvm_sta->deflink.sta_id)); 271897f70c56SJohannes Berg cmd.alloc.tid = tid; 271997f70c56SJohannes Berg cmd.alloc.ssn = cpu_to_le16(ssn); 272097f70c56SJohannes Berg cmd.alloc.win_size = cpu_to_le16(buf_size); 272197f70c56SJohannes Berg baid = -EIO; 272226de4c8bSJohannes Berg } else if (iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1) == 1) { 272326de4c8bSJohannes Berg cmd.remove_v1.baid = cpu_to_le32(baid); 272426de4c8bSJohannes Berg BUILD_BUG_ON(sizeof(cmd.remove_v1) > sizeof(cmd.remove)); 272597f70c56SJohannes Berg } else { 2726*c8ee33e1SGregory Greenman cmd.remove.sta_id_mask = 2727*c8ee33e1SGregory Greenman cpu_to_le32(BIT(mvm_sta->deflink.sta_id)); 272826de4c8bSJohannes Berg cmd.remove.tid = cpu_to_le32(tid); 272997f70c56SJohannes Berg } 273097f70c56SJohannes Berg 273197f70c56SJohannes Berg ret = iwl_mvm_send_cmd_pdu_status(mvm, cmd_id, sizeof(cmd), 273297f70c56SJohannes Berg &cmd, &baid); 273397f70c56SJohannes Berg if (ret) 273497f70c56SJohannes Berg return ret; 273597f70c56SJohannes Berg 273697f70c56SJohannes Berg if (!start) { 273797f70c56SJohannes Berg /* ignore firmware baid on remove */ 273897f70c56SJohannes Berg baid = 0; 273997f70c56SJohannes Berg } 274097f70c56SJohannes Berg 274197f70c56SJohannes Berg IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n", 274297f70c56SJohannes Berg start ? "start" : "stopp"); 274397f70c56SJohannes Berg 274497f70c56SJohannes Berg if (baid < 0 || baid >= ARRAY_SIZE(mvm->baid_map)) 274597f70c56SJohannes Berg return -EINVAL; 274697f70c56SJohannes Berg 274797f70c56SJohannes Berg return baid; 274897f70c56SJohannes Berg } 274997f70c56SJohannes Berg 275097f70c56SJohannes Berg static int iwl_mvm_fw_baid_op(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvm_sta, 275197f70c56SJohannes Berg bool start, int tid, u16 ssn, u16 buf_size, 275297f70c56SJohannes Berg int baid) 275397f70c56SJohannes Berg { 275497f70c56SJohannes Berg if (fw_has_capa(&mvm->fw->ucode_capa, 275597f70c56SJohannes Berg IWL_UCODE_TLV_CAPA_BAID_ML_SUPPORT)) 275697f70c56SJohannes Berg return iwl_mvm_fw_baid_op_cmd(mvm, mvm_sta, start, 275797f70c56SJohannes Berg tid, ssn, buf_size, baid); 275897f70c56SJohannes Berg 275997f70c56SJohannes Berg return iwl_mvm_fw_baid_op_sta(mvm, mvm_sta, start, 276097f70c56SJohannes Berg tid, ssn, buf_size); 276197f70c56SJohannes Berg } 276297f70c56SJohannes Berg 2763e705c121SKalle Valo int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2764514c3069SLuca Coelho int tid, u16 ssn, bool start, u16 buf_size, u16 timeout) 2765e705c121SKalle Valo { 2766e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 276710b2b201SSara Sharon struct iwl_mvm_baid_data *baid_data = NULL; 27680f3a4e48SJohannes Berg int ret, baid; 2769ded5ded3SEmmanuel Grumbach u32 max_ba_id_sessions = iwl_mvm_has_new_tx_api(mvm) ? IWL_MAX_BAID : 2770ded5ded3SEmmanuel Grumbach IWL_MAX_BAID_OLD; 2771e705c121SKalle Valo 2772e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2773e705c121SKalle Valo 2774ded5ded3SEmmanuel Grumbach if (start && mvm->rx_ba_sessions >= max_ba_id_sessions) { 2775e705c121SKalle Valo IWL_WARN(mvm, "Not enough RX BA SESSIONS\n"); 2776e705c121SKalle Valo return -ENOSPC; 2777e705c121SKalle Valo } 2778e705c121SKalle Valo 277910b2b201SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && start) { 2780dfdddd92SJohannes Berg u16 reorder_buf_size = buf_size * sizeof(baid_data->entries[0]); 2781dfdddd92SJohannes Berg 2782dfdddd92SJohannes Berg /* sparse doesn't like the __align() so don't check */ 2783dfdddd92SJohannes Berg #ifndef __CHECKER__ 2784dfdddd92SJohannes Berg /* 2785dfdddd92SJohannes Berg * The division below will be OK if either the cache line size 2786dfdddd92SJohannes Berg * can be divided by the entry size (ALIGN will round up) or if 2787dfdddd92SJohannes Berg * if the entry size can be divided by the cache line size, in 2788dfdddd92SJohannes Berg * which case the ALIGN() will do nothing. 2789dfdddd92SJohannes Berg */ 2790dfdddd92SJohannes Berg BUILD_BUG_ON(SMP_CACHE_BYTES % sizeof(baid_data->entries[0]) && 2791dfdddd92SJohannes Berg sizeof(baid_data->entries[0]) % SMP_CACHE_BYTES); 2792dfdddd92SJohannes Berg #endif 2793dfdddd92SJohannes Berg 2794dfdddd92SJohannes Berg /* 2795dfdddd92SJohannes Berg * Upward align the reorder buffer size to fill an entire cache 2796dfdddd92SJohannes Berg * line for each queue, to avoid sharing cache lines between 2797dfdddd92SJohannes Berg * different queues. 2798dfdddd92SJohannes Berg */ 2799dfdddd92SJohannes Berg reorder_buf_size = ALIGN(reorder_buf_size, SMP_CACHE_BYTES); 2800dfdddd92SJohannes Berg 280110b2b201SSara Sharon /* 280210b2b201SSara Sharon * Allocate here so if allocation fails we can bail out early 280310b2b201SSara Sharon * before starting the BA session in the firmware 280410b2b201SSara Sharon */ 2805b915c101SSara Sharon baid_data = kzalloc(sizeof(*baid_data) + 2806b915c101SSara Sharon mvm->trans->num_rx_queues * 2807dfdddd92SJohannes Berg reorder_buf_size, 2808b915c101SSara Sharon GFP_KERNEL); 280910b2b201SSara Sharon if (!baid_data) 281010b2b201SSara Sharon return -ENOMEM; 2811dfdddd92SJohannes Berg 2812dfdddd92SJohannes Berg /* 2813dfdddd92SJohannes Berg * This division is why we need the above BUILD_BUG_ON(), 2814dfdddd92SJohannes Berg * if that doesn't hold then this will not be right. 2815dfdddd92SJohannes Berg */ 2816dfdddd92SJohannes Berg baid_data->entries_per_queue = 2817dfdddd92SJohannes Berg reorder_buf_size / sizeof(baid_data->entries[0]); 281810b2b201SSara Sharon } 281910b2b201SSara Sharon 282097f70c56SJohannes Berg if (iwl_mvm_has_new_rx_api(mvm) && !start) { 282197f70c56SJohannes Berg baid = mvm_sta->tid_to_baid[tid]; 282297f70c56SJohannes Berg } else { 282397f70c56SJohannes Berg /* we don't really need it in this case */ 282497f70c56SJohannes Berg baid = -1; 282597f70c56SJohannes Berg } 282697f70c56SJohannes Berg 28273538c809SLuca Coelho /* Don't send command to remove (start=0) BAID during restart */ 28283538c809SLuca Coelho if (start || !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 282997f70c56SJohannes Berg baid = iwl_mvm_fw_baid_op(mvm, mvm_sta, start, tid, ssn, buf_size, 283097f70c56SJohannes Berg baid); 28313538c809SLuca Coelho 28320f3a4e48SJohannes Berg if (baid < 0) { 28330f3a4e48SJohannes Berg ret = baid; 283410b2b201SSara Sharon goto out_free; 2835e705c121SKalle Valo } 2836e705c121SKalle Valo 283710b2b201SSara Sharon if (start) { 2838e705c121SKalle Valo mvm->rx_ba_sessions++; 283910b2b201SSara Sharon 284010b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 284110b2b201SSara Sharon return 0; 284210b2b201SSara Sharon 284310b2b201SSara Sharon baid_data->baid = baid; 284410b2b201SSara Sharon baid_data->timeout = timeout; 284510b2b201SSara Sharon baid_data->last_rx = jiffies; 28468cef5344SKees Cook baid_data->rcu_ptr = &mvm->baid_map[baid]; 28478cef5344SKees Cook timer_setup(&baid_data->session_timer, 28488cef5344SKees Cook iwl_mvm_rx_agg_session_expired, 0); 284910b2b201SSara Sharon baid_data->mvm = mvm; 285010b2b201SSara Sharon baid_data->tid = tid; 2851*c8ee33e1SGregory Greenman baid_data->sta_id = mvm_sta->deflink.sta_id; 285210b2b201SSara Sharon 285310b2b201SSara Sharon mvm_sta->tid_to_baid[tid] = baid; 285410b2b201SSara Sharon if (timeout) 285510b2b201SSara Sharon mod_timer(&baid_data->session_timer, 285610b2b201SSara Sharon TU_TO_EXP_TIME(timeout * 2)); 285710b2b201SSara Sharon 28583f1c4c58SSara Sharon iwl_mvm_init_reorder_buffer(mvm, baid_data, ssn, buf_size); 285910b2b201SSara Sharon /* 286010b2b201SSara Sharon * protect the BA data with RCU to cover a case where our 286110b2b201SSara Sharon * internal RX sync mechanism will timeout (not that it's 286210b2b201SSara Sharon * supposed to happen) and we will free the session data while 286310b2b201SSara Sharon * RX is being processed in parallel 286410b2b201SSara Sharon */ 286535263a03SSara Sharon IWL_DEBUG_HT(mvm, "Sta %d(%d) is assigned to BAID %d\n", 2866*c8ee33e1SGregory Greenman mvm_sta->deflink.sta_id, tid, baid); 286710b2b201SSara Sharon WARN_ON(rcu_access_pointer(mvm->baid_map[baid])); 286810b2b201SSara Sharon rcu_assign_pointer(mvm->baid_map[baid], baid_data); 286960dec523SSara Sharon } else { 28700f3a4e48SJohannes Berg baid = mvm_sta->tid_to_baid[tid]; 287110b2b201SSara Sharon 287260dec523SSara Sharon if (mvm->rx_ba_sessions > 0) 2873e705c121SKalle Valo /* check that restart flow didn't zero the counter */ 2874e705c121SKalle Valo mvm->rx_ba_sessions--; 287510b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 287610b2b201SSara Sharon return 0; 2877e705c121SKalle Valo 287810b2b201SSara Sharon if (WARN_ON(baid == IWL_RX_REORDER_DATA_INVALID_BAID)) 287910b2b201SSara Sharon return -EINVAL; 288010b2b201SSara Sharon 288110b2b201SSara Sharon baid_data = rcu_access_pointer(mvm->baid_map[baid]); 288210b2b201SSara Sharon if (WARN_ON(!baid_data)) 288310b2b201SSara Sharon return -EINVAL; 288410b2b201SSara Sharon 288510b2b201SSara Sharon /* synchronize all rx queues so we can safely delete */ 2886b915c101SSara Sharon iwl_mvm_free_reorder(mvm, baid_data); 2887292a089dSSteven Rostedt (Google) timer_shutdown_sync(&baid_data->session_timer); 288810b2b201SSara Sharon RCU_INIT_POINTER(mvm->baid_map[baid], NULL); 288910b2b201SSara Sharon kfree_rcu(baid_data, rcu_head); 289035263a03SSara Sharon IWL_DEBUG_HT(mvm, "BAID %d is free\n", baid); 28912438d430SJohannes Berg 28922438d430SJohannes Berg /* 28932438d430SJohannes Berg * After we've deleted it, do another queue sync 28942438d430SJohannes Berg * so if an IWL_MVM_RXQ_NSSN_SYNC was concurrently 28952438d430SJohannes Berg * running it won't find a new session in the old 28962438d430SJohannes Berg * BAID. It can find the NULL pointer for the BAID, 28972438d430SJohannes Berg * but we must not have it find a different session. 28982438d430SJohannes Berg */ 28992438d430SJohannes Berg iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, 29002438d430SJohannes Berg true, NULL, 0); 290110b2b201SSara Sharon } 290210b2b201SSara Sharon return 0; 290310b2b201SSara Sharon 290410b2b201SSara Sharon out_free: 290510b2b201SSara Sharon kfree(baid_data); 2906e705c121SKalle Valo return ret; 2907e705c121SKalle Valo } 2908e705c121SKalle Valo 29099794c64fSLiad Kaufman int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2910e705c121SKalle Valo int tid, u8 queue, bool start) 2911e705c121SKalle Valo { 2912e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2913e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 2914e705c121SKalle Valo int ret; 2915e705c121SKalle Valo u32 status; 2916e705c121SKalle Valo 2917e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2918e705c121SKalle Valo 2919e705c121SKalle Valo if (start) { 2920e705c121SKalle Valo mvm_sta->tfd_queue_msk |= BIT(queue); 2921e705c121SKalle Valo mvm_sta->tid_disable_agg &= ~BIT(tid); 2922e705c121SKalle Valo } else { 2923cf961e16SLiad Kaufman /* In DQA-mode the queue isn't removed on agg termination */ 2924e705c121SKalle Valo mvm_sta->tid_disable_agg |= BIT(tid); 2925e705c121SKalle Valo } 2926e705c121SKalle Valo 2927e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 2928*c8ee33e1SGregory Greenman cmd.sta_id = mvm_sta->deflink.sta_id; 2929e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 2930bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) 2931bb49701bSSara Sharon cmd.modify_mask = STA_MODIFY_QUEUES; 2932bb49701bSSara Sharon cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 2933e705c121SKalle Valo cmd.tfd_queue_msk = cpu_to_le32(mvm_sta->tfd_queue_msk); 2934e705c121SKalle Valo cmd.tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg); 2935e705c121SKalle Valo 2936e705c121SKalle Valo status = ADD_STA_SUCCESS; 2937854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 2938854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 2939e705c121SKalle Valo &cmd, &status); 2940e705c121SKalle Valo if (ret) 2941e705c121SKalle Valo return ret; 2942e705c121SKalle Valo 2943837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 2944e705c121SKalle Valo case ADD_STA_SUCCESS: 2945e705c121SKalle Valo break; 2946e705c121SKalle Valo default: 2947e705c121SKalle Valo ret = -EIO; 2948e705c121SKalle Valo IWL_ERR(mvm, "TX BA Session failed %sing, status 0x%x\n", 2949e705c121SKalle Valo start ? "start" : "stopp", status); 2950e705c121SKalle Valo break; 2951e705c121SKalle Valo } 2952e705c121SKalle Valo 2953e705c121SKalle Valo return ret; 2954e705c121SKalle Valo } 2955e705c121SKalle Valo 2956e705c121SKalle Valo const u8 tid_to_mac80211_ac[] = { 2957e705c121SKalle Valo IEEE80211_AC_BE, 2958e705c121SKalle Valo IEEE80211_AC_BK, 2959e705c121SKalle Valo IEEE80211_AC_BK, 2960e705c121SKalle Valo IEEE80211_AC_BE, 2961e705c121SKalle Valo IEEE80211_AC_VI, 2962e705c121SKalle Valo IEEE80211_AC_VI, 2963e705c121SKalle Valo IEEE80211_AC_VO, 2964e705c121SKalle Valo IEEE80211_AC_VO, 29659794c64fSLiad Kaufman IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 2966e705c121SKalle Valo }; 2967e705c121SKalle Valo 2968e705c121SKalle Valo static const u8 tid_to_ucode_ac[] = { 2969e705c121SKalle Valo AC_BE, 2970e705c121SKalle Valo AC_BK, 2971e705c121SKalle Valo AC_BK, 2972e705c121SKalle Valo AC_BE, 2973e705c121SKalle Valo AC_VI, 2974e705c121SKalle Valo AC_VI, 2975e705c121SKalle Valo AC_VO, 2976e705c121SKalle Valo AC_VO, 2977e705c121SKalle Valo }; 2978e705c121SKalle Valo 2979e705c121SKalle Valo int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2980e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 *ssn) 2981e705c121SKalle Valo { 2982e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2983e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 2984dd32162dSLiad Kaufman u16 normalized_ssn; 2985b0d795a9SMordechay Goodstein u16 txq_id; 2986e705c121SKalle Valo int ret; 2987e705c121SKalle Valo 2988e705c121SKalle Valo if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT)) 2989e705c121SKalle Valo return -EINVAL; 2990e705c121SKalle Valo 2991bd800e41SNaftali Goldstein if (mvmsta->tid_data[tid].state != IWL_AGG_QUEUED && 2992bd800e41SNaftali Goldstein mvmsta->tid_data[tid].state != IWL_AGG_OFF) { 2993bd800e41SNaftali Goldstein IWL_ERR(mvm, 2994bd800e41SNaftali Goldstein "Start AGG when state is not IWL_AGG_QUEUED or IWL_AGG_OFF %d!\n", 2995e705c121SKalle Valo mvmsta->tid_data[tid].state); 2996e705c121SKalle Valo return -ENXIO; 2997e705c121SKalle Valo } 2998e705c121SKalle Valo 2999e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3000e705c121SKalle Valo 3001bd8f3fc6SLiad Kaufman if (mvmsta->tid_data[tid].txq_id == IWL_MVM_INVALID_QUEUE && 3002bd8f3fc6SLiad Kaufman iwl_mvm_has_new_tx_api(mvm)) { 3003bd8f3fc6SLiad Kaufman u8 ac = tid_to_mac80211_ac[tid]; 3004bd8f3fc6SLiad Kaufman 3005bd8f3fc6SLiad Kaufman ret = iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 3006bd8f3fc6SLiad Kaufman if (ret) 3007bd8f3fc6SLiad Kaufman return ret; 3008bd8f3fc6SLiad Kaufman } 3009bd8f3fc6SLiad Kaufman 3010e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3011e705c121SKalle Valo 3012cf961e16SLiad Kaufman /* 3013cf961e16SLiad Kaufman * Note the possible cases: 30144a6d2e52SAvraham Stern * 1. An enabled TXQ - TXQ needs to become agg'ed 30154a6d2e52SAvraham Stern * 2. The TXQ hasn't yet been enabled, so find a free one and mark 30164a6d2e52SAvraham Stern * it as reserved 3017cf961e16SLiad Kaufman */ 3018cf961e16SLiad Kaufman txq_id = mvmsta->tid_data[tid].txq_id; 301934e10860SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) { 3020*c8ee33e1SGregory Greenman ret = iwl_mvm_find_free_queue(mvm, mvmsta->deflink.sta_id, 3021c8f54701SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 3022c8f54701SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 3023b0d795a9SMordechay Goodstein if (ret < 0) { 3024e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate agg queue\n"); 3025f3f240f9SJohannes Berg goto out; 3026e705c121SKalle Valo } 3027cf961e16SLiad Kaufman 3028b0d795a9SMordechay Goodstein txq_id = ret; 3029b0d795a9SMordechay Goodstein 3030cf961e16SLiad Kaufman /* TXQ hasn't yet been enabled, so mark it only as reserved */ 3031cf961e16SLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_RESERVED; 3032b0d795a9SMordechay Goodstein } else if (WARN_ON(txq_id >= IWL_MAX_HW_QUEUES)) { 3033b0d795a9SMordechay Goodstein ret = -ENXIO; 3034b0d795a9SMordechay Goodstein IWL_ERR(mvm, "tid_id %d out of range (0, %d)!\n", 3035b0d795a9SMordechay Goodstein tid, IWL_MAX_HW_QUEUES - 1); 3036b0d795a9SMordechay Goodstein goto out; 3037b0d795a9SMordechay Goodstein 30384a6d2e52SAvraham Stern } else if (unlikely(mvm->queue_info[txq_id].status == 30394a6d2e52SAvraham Stern IWL_MVM_QUEUE_SHARED)) { 30404a6d2e52SAvraham Stern ret = -ENXIO; 30414a6d2e52SAvraham Stern IWL_DEBUG_TX_QUEUES(mvm, 30424a6d2e52SAvraham Stern "Can't start tid %d agg on shared queue!\n", 30434a6d2e52SAvraham Stern tid); 3044f3f240f9SJohannes Berg goto out; 3045cf961e16SLiad Kaufman } 30469f9af3d7SLiad Kaufman 3047cf961e16SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 3048cf961e16SLiad Kaufman "AGG for tid %d will be on queue #%d\n", 3049cf961e16SLiad Kaufman tid, txq_id); 3050cf961e16SLiad Kaufman 3051e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 3052e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3053e705c121SKalle Valo tid_data->txq_id = txq_id; 3054e705c121SKalle Valo *ssn = tid_data->ssn; 3055e705c121SKalle Valo 3056e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 3057e705c121SKalle Valo "Start AGG: sta %d tid %d queue %d - ssn = %d, next_recl = %d\n", 3058*c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid, txq_id, 3059*c8ee33e1SGregory Greenman tid_data->ssn, 3060e705c121SKalle Valo tid_data->next_reclaimed); 3061e705c121SKalle Valo 3062dd32162dSLiad Kaufman /* 30632f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 3064dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 3065dd32162dSLiad Kaufman */ 3066dd32162dSLiad Kaufman normalized_ssn = tid_data->ssn; 3067286ca8ebSLuca Coelho if (mvm->trans->trans_cfg->gen2) 3068dd32162dSLiad Kaufman normalized_ssn &= 0xff; 3069dd32162dSLiad Kaufman 3070dd32162dSLiad Kaufman if (normalized_ssn == tid_data->next_reclaimed) { 3071e705c121SKalle Valo tid_data->state = IWL_AGG_STARTING; 30722ce113deSJohannes Berg ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 3073e705c121SKalle Valo } else { 3074e705c121SKalle Valo tid_data->state = IWL_EMPTYING_HW_QUEUE_ADDBA; 30757e0ca723SMordechay Goodstein ret = IEEE80211_AMPDU_TX_START_DELAY_ADDBA; 30762ce113deSJohannes Berg } 3077e705c121SKalle Valo 30789f9af3d7SLiad Kaufman out: 3079e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3080e705c121SKalle Valo 3081e705c121SKalle Valo return ret; 3082e705c121SKalle Valo } 3083e705c121SKalle Valo 3084e705c121SKalle Valo int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3085514c3069SLuca Coelho struct ieee80211_sta *sta, u16 tid, u16 buf_size, 3086bb81bb68SEmmanuel Grumbach bool amsdu) 3087e705c121SKalle Valo { 3088e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3089e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3090e705c121SKalle Valo unsigned int wdg_timeout = 3091e705c121SKalle Valo iwl_mvm_get_wd_timeout(mvm, vif, sta->tdls, false); 3092eea76c36SEmmanuel Grumbach int queue, ret; 3093cf961e16SLiad Kaufman bool alloc_queue = true; 30949f9af3d7SLiad Kaufman enum iwl_mvm_queue_status queue_status; 3095e705c121SKalle Valo u16 ssn; 3096e705c121SKalle Valo 3097eea76c36SEmmanuel Grumbach struct iwl_trans_txq_scd_cfg cfg = { 3098*c8ee33e1SGregory Greenman .sta_id = mvmsta->deflink.sta_id, 3099eea76c36SEmmanuel Grumbach .tid = tid, 3100eea76c36SEmmanuel Grumbach .frame_limit = buf_size, 3101eea76c36SEmmanuel Grumbach .aggregate = true, 3102eea76c36SEmmanuel Grumbach }; 3103eea76c36SEmmanuel Grumbach 3104ecaf71deSGregory Greenman /* 3105ecaf71deSGregory Greenman * When FW supports TLC_OFFLOAD, it also implements Tx aggregation 3106ecaf71deSGregory Greenman * manager, so this function should never be called in this case. 3107ecaf71deSGregory Greenman */ 31084243edb4SEmmanuel Grumbach if (WARN_ON_ONCE(iwl_mvm_has_tlc_offload(mvm))) 3109ecaf71deSGregory Greenman return -EINVAL; 3110ecaf71deSGregory Greenman 3111e705c121SKalle Valo BUILD_BUG_ON((sizeof(mvmsta->agg_tids) * BITS_PER_BYTE) 3112e705c121SKalle Valo != IWL_MAX_TID_COUNT); 3113e705c121SKalle Valo 3114e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3115e705c121SKalle Valo ssn = tid_data->ssn; 3116e705c121SKalle Valo queue = tid_data->txq_id; 3117e705c121SKalle Valo tid_data->state = IWL_AGG_ON; 3118e705c121SKalle Valo mvmsta->agg_tids |= BIT(tid); 3119e705c121SKalle Valo tid_data->ssn = 0xffff; 3120bb81bb68SEmmanuel Grumbach tid_data->amsdu_in_ampdu_allowed = amsdu; 3121e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3122e705c121SKalle Valo 312334e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 312434e10860SSara Sharon /* 31250ec9257bSSara Sharon * If there is no queue for this tid, iwl_mvm_sta_tx_agg_start() 31260ec9257bSSara Sharon * would have failed, so if we are here there is no need to 31270ec9257bSSara Sharon * allocate a queue. 31280ec9257bSSara Sharon * However, if aggregation size is different than the default 31290ec9257bSSara Sharon * size, the scheduler should be reconfigured. 31300ec9257bSSara Sharon * We cannot do this with the new TX API, so return unsupported 31310ec9257bSSara Sharon * for now, until it will be offloaded to firmware.. 31320ec9257bSSara Sharon * Note that if SCD default value changes - this condition 31330ec9257bSSara Sharon * should be updated as well. 313434e10860SSara Sharon */ 31350ec9257bSSara Sharon if (buf_size < IWL_FRAME_LIMIT) 313634e10860SSara Sharon return -ENOTSUPP; 313734e10860SSara Sharon 313834e10860SSara Sharon ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 313934e10860SSara Sharon if (ret) 314034e10860SSara Sharon return -EIO; 314134e10860SSara Sharon goto out; 314234e10860SSara Sharon } 314334e10860SSara Sharon 3144eea76c36SEmmanuel Grumbach cfg.fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 3145e705c121SKalle Valo 31469f9af3d7SLiad Kaufman queue_status = mvm->queue_info[queue].status; 31479f9af3d7SLiad Kaufman 3148cf961e16SLiad Kaufman /* Maybe there is no need to even alloc a queue... */ 3149cf961e16SLiad Kaufman if (mvm->queue_info[queue].status == IWL_MVM_QUEUE_READY) 3150cf961e16SLiad Kaufman alloc_queue = false; 3151cf961e16SLiad Kaufman 3152cf961e16SLiad Kaufman /* 3153cf961e16SLiad Kaufman * Only reconfig the SCD for the queue if the window size has 3154cf961e16SLiad Kaufman * changed from current (become smaller) 3155cf961e16SLiad Kaufman */ 31560ec9257bSSara Sharon if (!alloc_queue && buf_size < IWL_FRAME_LIMIT) { 3157cf961e16SLiad Kaufman /* 3158cf961e16SLiad Kaufman * If reconfiguring an existing queue, it first must be 3159cf961e16SLiad Kaufman * drained 3160cf961e16SLiad Kaufman */ 3161a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 3162cf961e16SLiad Kaufman BIT(queue)); 3163cf961e16SLiad Kaufman if (ret) { 3164cf961e16SLiad Kaufman IWL_ERR(mvm, 3165cf961e16SLiad Kaufman "Error draining queue before reconfig\n"); 3166cf961e16SLiad Kaufman return ret; 3167cf961e16SLiad Kaufman } 3168cf961e16SLiad Kaufman 3169cf961e16SLiad Kaufman ret = iwl_mvm_reconfig_scd(mvm, queue, cfg.fifo, 3170*c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid, 3171cf961e16SLiad Kaufman buf_size, ssn); 3172cf961e16SLiad Kaufman if (ret) { 3173cf961e16SLiad Kaufman IWL_ERR(mvm, 3174cf961e16SLiad Kaufman "Error reconfiguring TXQ #%d\n", queue); 3175cf961e16SLiad Kaufman return ret; 3176cf961e16SLiad Kaufman } 3177cf961e16SLiad Kaufman } 3178cf961e16SLiad Kaufman 3179cf961e16SLiad Kaufman if (alloc_queue) 3180cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, queue, ssn, 3181cf961e16SLiad Kaufman &cfg, wdg_timeout); 3182e705c121SKalle Valo 31839f9af3d7SLiad Kaufman /* Send ADD_STA command to enable aggs only if the queue isn't shared */ 31849f9af3d7SLiad Kaufman if (queue_status != IWL_MVM_QUEUE_SHARED) { 3185e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 3186e705c121SKalle Valo if (ret) 3187e705c121SKalle Valo return -EIO; 31889f9af3d7SLiad Kaufman } 3189e705c121SKalle Valo 3190e705c121SKalle Valo /* No need to mark as reserved */ 3191cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 3192e705c121SKalle Valo 319334e10860SSara Sharon out: 3194e705c121SKalle Valo /* 3195e705c121SKalle Valo * Even though in theory the peer could have different 3196e705c121SKalle Valo * aggregation reorder buffer sizes for different sessions, 3197e705c121SKalle Valo * our ucode doesn't allow for that and has a global limit 3198e705c121SKalle Valo * for each station. Therefore, use the minimum of all the 3199e705c121SKalle Valo * aggregation sessions and our default value. 3200e705c121SKalle Valo */ 3201e705c121SKalle Valo mvmsta->max_agg_bufsize = 3202e705c121SKalle Valo min(mvmsta->max_agg_bufsize, buf_size); 3203*c8ee33e1SGregory Greenman mvmsta->deflink.lq_sta.rs_drv.lq.agg_frame_cnt_limit = 3204*c8ee33e1SGregory Greenman mvmsta->max_agg_bufsize; 3205e705c121SKalle Valo 3206e705c121SKalle Valo IWL_DEBUG_HT(mvm, "Tx aggregation enabled on ra = %pM tid = %d\n", 3207e705c121SKalle Valo sta->addr, tid); 3208e705c121SKalle Valo 3209*c8ee33e1SGregory Greenman return iwl_mvm_send_lq_cmd(mvm, &mvmsta->deflink.lq_sta.rs_drv.lq); 3210e705c121SKalle Valo } 3211e705c121SKalle Valo 321234e10860SSara Sharon static void iwl_mvm_unreserve_agg_queue(struct iwl_mvm *mvm, 321334e10860SSara Sharon struct iwl_mvm_sta *mvmsta, 32144b387906SAvraham Stern struct iwl_mvm_tid_data *tid_data) 321534e10860SSara Sharon { 32164b387906SAvraham Stern u16 txq_id = tid_data->txq_id; 32174b387906SAvraham Stern 3218f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 3219f3f240f9SJohannes Berg 322034e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 322134e10860SSara Sharon return; 322234e10860SSara Sharon 322334e10860SSara Sharon /* 322434e10860SSara Sharon * The TXQ is marked as reserved only if no traffic came through yet 322534e10860SSara Sharon * This means no traffic has been sent on this TID (agg'd or not), so 322634e10860SSara Sharon * we no longer have use for the queue. Since it hasn't even been 322734e10860SSara Sharon * allocated through iwl_mvm_enable_txq, so we can just mark it back as 322834e10860SSara Sharon * free. 322934e10860SSara Sharon */ 32304b387906SAvraham Stern if (mvm->queue_info[txq_id].status == IWL_MVM_QUEUE_RESERVED) { 323134e10860SSara Sharon mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_FREE; 32324b387906SAvraham Stern tid_data->txq_id = IWL_MVM_INVALID_QUEUE; 32334b387906SAvraham Stern } 323434e10860SSara Sharon } 323534e10860SSara Sharon 3236e705c121SKalle Valo int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3237e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3238e705c121SKalle Valo { 3239e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3240e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3241e705c121SKalle Valo u16 txq_id; 3242e705c121SKalle Valo int err; 3243e705c121SKalle Valo 3244e705c121SKalle Valo /* 3245e705c121SKalle Valo * If mac80211 is cleaning its state, then say that we finished since 3246e705c121SKalle Valo * our state has been cleared anyway. 3247e705c121SKalle Valo */ 3248e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3249e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3250e705c121SKalle Valo return 0; 3251e705c121SKalle Valo } 3252e705c121SKalle Valo 3253e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3254e705c121SKalle Valo 3255e705c121SKalle Valo txq_id = tid_data->txq_id; 3256e705c121SKalle Valo 3257e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Stop AGG: sta %d tid %d q %d state %d\n", 3258*c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid, txq_id, 3259*c8ee33e1SGregory Greenman tid_data->state); 3260e705c121SKalle Valo 3261e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3262e705c121SKalle Valo 32634b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3264e705c121SKalle Valo 3265e705c121SKalle Valo switch (tid_data->state) { 3266e705c121SKalle Valo case IWL_AGG_ON: 3267e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3268e705c121SKalle Valo 3269e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 3270e705c121SKalle Valo "ssn = %d, next_recl = %d\n", 3271e705c121SKalle Valo tid_data->ssn, tid_data->next_reclaimed); 3272e705c121SKalle Valo 3273e705c121SKalle Valo tid_data->ssn = 0xffff; 3274e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3275e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3276e705c121SKalle Valo 3277e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3278e705c121SKalle Valo 3279e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3280e705c121SKalle Valo return 0; 3281e705c121SKalle Valo case IWL_AGG_STARTING: 3282e705c121SKalle Valo case IWL_EMPTYING_HW_QUEUE_ADDBA: 3283e705c121SKalle Valo /* 3284e705c121SKalle Valo * The agg session has been stopped before it was set up. This 3285e705c121SKalle Valo * can happen when the AddBA timer times out for example. 3286e705c121SKalle Valo */ 3287e705c121SKalle Valo 3288e705c121SKalle Valo /* No barriers since we are under mutex */ 3289e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3290e705c121SKalle Valo 3291e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3292e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3293e705c121SKalle Valo err = 0; 3294e705c121SKalle Valo break; 3295e705c121SKalle Valo default: 3296e705c121SKalle Valo IWL_ERR(mvm, 3297e705c121SKalle Valo "Stopping AGG while state not ON or starting for %d on %d (%d)\n", 3298*c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid, tid_data->state); 3299e705c121SKalle Valo IWL_ERR(mvm, 3300e705c121SKalle Valo "\ttid_data->txq_id = %d\n", tid_data->txq_id); 3301e705c121SKalle Valo err = -EINVAL; 3302e705c121SKalle Valo } 3303e705c121SKalle Valo 3304e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3305e705c121SKalle Valo 3306e705c121SKalle Valo return err; 3307e705c121SKalle Valo } 3308e705c121SKalle Valo 3309e705c121SKalle Valo int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3310e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3311e705c121SKalle Valo { 3312e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3313e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3314e705c121SKalle Valo u16 txq_id; 3315e705c121SKalle Valo enum iwl_mvm_agg_state old_state; 3316e705c121SKalle Valo 3317e705c121SKalle Valo /* 3318e705c121SKalle Valo * First set the agg state to OFF to avoid calling 3319e705c121SKalle Valo * ieee80211_stop_tx_ba_cb in iwl_mvm_check_ratid_empty. 3320e705c121SKalle Valo */ 3321e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3322e705c121SKalle Valo txq_id = tid_data->txq_id; 3323e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Flush AGG: sta %d tid %d q %d state %d\n", 3324*c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid, txq_id, 3325*c8ee33e1SGregory Greenman tid_data->state); 3326e705c121SKalle Valo old_state = tid_data->state; 3327e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3328e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3329e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3330e705c121SKalle Valo 33314b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3332e705c121SKalle Valo 3333e705c121SKalle Valo if (old_state >= IWL_AGG_ON) { 3334e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, true); 3335d167e81aSMordechai Goodstein 3336d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) { 3337*c8ee33e1SGregory Greenman if (iwl_mvm_flush_sta_tids(mvm, mvmsta->deflink.sta_id, 3338d4e3a341SMordechay Goodstein BIT(tid))) 3339d167e81aSMordechai Goodstein IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 3340d167e81aSMordechai Goodstein iwl_trans_wait_txq_empty(mvm->trans, txq_id); 3341d167e81aSMordechai Goodstein } else { 3342d4e3a341SMordechay Goodstein if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id))) 3343e705c121SKalle Valo IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 33440b90964aSSara Sharon iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(txq_id)); 3345d167e81aSMordechai Goodstein } 3346d6d517b7SSara Sharon 3347e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, false); 3348e705c121SKalle Valo 3349e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3350e705c121SKalle Valo } 3351e705c121SKalle Valo 3352e705c121SKalle Valo return 0; 3353e705c121SKalle Valo } 3354e705c121SKalle Valo 3355e705c121SKalle Valo static int iwl_mvm_set_fw_key_idx(struct iwl_mvm *mvm) 3356e705c121SKalle Valo { 3357e705c121SKalle Valo int i, max = -1, max_offs = -1; 3358e705c121SKalle Valo 3359e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3360e705c121SKalle Valo 3361e705c121SKalle Valo /* Pick the unused key offset with the highest 'deleted' 3362e705c121SKalle Valo * counter. Every time a key is deleted, all the counters 3363e705c121SKalle Valo * are incremented and the one that was just deleted is 3364e705c121SKalle Valo * reset to zero. Thus, the highest counter is the one 3365e705c121SKalle Valo * that was deleted longest ago. Pick that one. 3366e705c121SKalle Valo */ 3367e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3368e705c121SKalle Valo if (test_bit(i, mvm->fw_key_table)) 3369e705c121SKalle Valo continue; 3370e705c121SKalle Valo if (mvm->fw_key_deleted[i] > max) { 3371e705c121SKalle Valo max = mvm->fw_key_deleted[i]; 3372e705c121SKalle Valo max_offs = i; 3373e705c121SKalle Valo } 3374e705c121SKalle Valo } 3375e705c121SKalle Valo 3376e705c121SKalle Valo if (max_offs < 0) 3377e705c121SKalle Valo return STA_KEY_IDX_INVALID; 3378e705c121SKalle Valo 3379e705c121SKalle Valo return max_offs; 3380e705c121SKalle Valo } 3381e705c121SKalle Valo 33825f7a1847SJohannes Berg static struct iwl_mvm_sta *iwl_mvm_get_key_sta(struct iwl_mvm *mvm, 33834615fd15SEmmanuel Grumbach struct ieee80211_vif *vif, 3384e705c121SKalle Valo struct ieee80211_sta *sta) 3385e705c121SKalle Valo { 3386e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3387e705c121SKalle Valo 33885f7a1847SJohannes Berg if (sta) 33895f7a1847SJohannes Berg return iwl_mvm_sta_from_mac80211(sta); 3390e705c121SKalle Valo 3391e705c121SKalle Valo /* 3392e705c121SKalle Valo * The device expects GTKs for station interfaces to be 3393e705c121SKalle Valo * installed as GTKs for the AP station. If we have no 3394e705c121SKalle Valo * station ID, then use AP's station ID. 3395e705c121SKalle Valo */ 3396e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 3397650cadb7SGregory Greenman mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 3398650cadb7SGregory Greenman u8 sta_id = mvmvif->deflink.ap_sta_id; 33994615fd15SEmmanuel Grumbach 34007d6a1ab6SEmmanuel Grumbach sta = rcu_dereference_check(mvm->fw_id_to_mac_id[sta_id], 34017d6a1ab6SEmmanuel Grumbach lockdep_is_held(&mvm->mutex)); 34027d6a1ab6SEmmanuel Grumbach 34034615fd15SEmmanuel Grumbach /* 34044615fd15SEmmanuel Grumbach * It is possible that the 'sta' parameter is NULL, 34054615fd15SEmmanuel Grumbach * for example when a GTK is removed - the sta_id will then 34064615fd15SEmmanuel Grumbach * be the AP ID, and no station was passed by mac80211. 34074615fd15SEmmanuel Grumbach */ 34087d6a1ab6SEmmanuel Grumbach if (IS_ERR_OR_NULL(sta)) 34097d6a1ab6SEmmanuel Grumbach return NULL; 34107d6a1ab6SEmmanuel Grumbach 34117d6a1ab6SEmmanuel Grumbach return iwl_mvm_sta_from_mac80211(sta); 34124615fd15SEmmanuel Grumbach } 3413e705c121SKalle Valo 34145f7a1847SJohannes Berg return NULL; 3415e705c121SKalle Valo } 3416e705c121SKalle Valo 3417a6dfbd04SJohannes Berg static int iwl_mvm_pn_cmp(const u8 *pn1, const u8 *pn2, int len) 3418a6dfbd04SJohannes Berg { 3419a6dfbd04SJohannes Berg int i; 3420a6dfbd04SJohannes Berg 3421a6dfbd04SJohannes Berg for (i = len - 1; i >= 0; i--) { 3422a6dfbd04SJohannes Berg if (pn1[i] > pn2[i]) 3423a6dfbd04SJohannes Berg return 1; 3424a6dfbd04SJohannes Berg if (pn1[i] < pn2[i]) 3425a6dfbd04SJohannes Berg return -1; 3426a6dfbd04SJohannes Berg } 3427a6dfbd04SJohannes Berg 3428a6dfbd04SJohannes Berg return 0; 3429a6dfbd04SJohannes Berg } 3430a6dfbd04SJohannes Berg 3431e705c121SKalle Valo static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm, 343285aeb58cSDavid Spinadel u32 sta_id, 343345c458b4SSara Sharon struct ieee80211_key_conf *key, bool mcast, 34344615fd15SEmmanuel Grumbach u32 tkip_iv32, u16 *tkip_p1k, u32 cmd_flags, 34354883145aSEmmanuel Grumbach u8 key_offset, bool mfp) 3436e705c121SKalle Valo { 343745c458b4SSara Sharon union { 343845c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 343945c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd cmd; 344045c458b4SSara Sharon } u = {}; 3441e705c121SKalle Valo __le16 key_flags; 3442e705c121SKalle Valo int ret; 3443e705c121SKalle Valo u32 status; 3444e705c121SKalle Valo u16 keyidx; 344545c458b4SSara Sharon u64 pn = 0; 344645c458b4SSara Sharon int i, size; 344745c458b4SSara Sharon bool new_api = fw_has_api(&mvm->fw->ucode_capa, 344845c458b4SSara Sharon IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 3449971cbe50SJohannes Berg int api_ver = iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA_KEY, 3450199d895fSJohannes Berg new_api ? 2 : 1); 3451e705c121SKalle Valo 345285aeb58cSDavid Spinadel if (sta_id == IWL_MVM_INVALID_STA) 345385aeb58cSDavid Spinadel return -EINVAL; 345485aeb58cSDavid Spinadel 345545c458b4SSara Sharon keyidx = (key->keyidx << STA_KEY_FLG_KEYID_POS) & 3456e705c121SKalle Valo STA_KEY_FLG_KEYID_MSK; 3457e705c121SKalle Valo key_flags = cpu_to_le16(keyidx); 3458e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_KEY_MAP); 3459e705c121SKalle Valo 346045c458b4SSara Sharon switch (key->cipher) { 3461e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 3462e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_TKIP); 3463199d895fSJohannes Berg if (api_ver >= 2) { 346445c458b4SSara Sharon memcpy((void *)&u.cmd.tx_mic_key, 346545c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], 346645c458b4SSara Sharon IWL_MIC_KEY_SIZE); 346745c458b4SSara Sharon 346845c458b4SSara Sharon memcpy((void *)&u.cmd.rx_mic_key, 346945c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], 347045c458b4SSara Sharon IWL_MIC_KEY_SIZE); 347145c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 347245c458b4SSara Sharon 347345c458b4SSara Sharon } else { 347445c458b4SSara Sharon u.cmd_v1.tkip_rx_tsc_byte2 = tkip_iv32; 3475e705c121SKalle Valo for (i = 0; i < 5; i++) 347645c458b4SSara Sharon u.cmd_v1.tkip_rx_ttak[i] = 347745c458b4SSara Sharon cpu_to_le16(tkip_p1k[i]); 347845c458b4SSara Sharon } 347945c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3480e705c121SKalle Valo break; 3481e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 3482e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_CCM); 348345c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3484199d895fSJohannes Berg if (api_ver >= 2) 348545c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 3486e705c121SKalle Valo break; 3487e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 3488e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_13BYTES); 34895a2abdcaSGustavo A. R. Silva fallthrough; 3490e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 3491e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP); 349245c458b4SSara Sharon memcpy(u.cmd.common.key + 3, key->key, key->keylen); 3493e705c121SKalle Valo break; 34942a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 34952a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_KEY_32BYTES); 34965a2abdcaSGustavo A. R. Silva fallthrough; 34972a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 34982a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_GCMP); 349945c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3500199d895fSJohannes Berg if (api_ver >= 2) 350145c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 35022a53d166SAyala Beker break; 3503e705c121SKalle Valo default: 3504e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_EXT); 350545c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3506e705c121SKalle Valo } 3507e705c121SKalle Valo 3508e705c121SKalle Valo if (mcast) 3509e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 35104883145aSEmmanuel Grumbach if (mfp) 35114883145aSEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MFP); 3512e705c121SKalle Valo 351345c458b4SSara Sharon u.cmd.common.key_offset = key_offset; 351445c458b4SSara Sharon u.cmd.common.key_flags = key_flags; 351585aeb58cSDavid Spinadel u.cmd.common.sta_id = sta_id; 351645c458b4SSara Sharon 3517a6dfbd04SJohannes Berg if (key->cipher == WLAN_CIPHER_SUITE_TKIP) 3518a6dfbd04SJohannes Berg i = 0; 3519a6dfbd04SJohannes Berg else 3520a6dfbd04SJohannes Berg i = -1; 3521a6dfbd04SJohannes Berg 3522a6dfbd04SJohannes Berg for (; i < IEEE80211_NUM_TIDS; i++) { 3523a6dfbd04SJohannes Berg struct ieee80211_key_seq seq = {}; 3524a6dfbd04SJohannes Berg u8 _rx_pn[IEEE80211_MAX_PN_LEN] = {}, *rx_pn = _rx_pn; 3525a6dfbd04SJohannes Berg int rx_pn_len = 8; 3526199d895fSJohannes Berg /* there's a hole at 2/3 in FW format depending on version */ 3527199d895fSJohannes Berg int hole = api_ver >= 3 ? 0 : 2; 3528a6dfbd04SJohannes Berg 3529a6dfbd04SJohannes Berg ieee80211_get_key_rx_seq(key, i, &seq); 3530a6dfbd04SJohannes Berg 3531a6dfbd04SJohannes Berg if (key->cipher == WLAN_CIPHER_SUITE_TKIP) { 3532a6dfbd04SJohannes Berg rx_pn[0] = seq.tkip.iv16; 3533a6dfbd04SJohannes Berg rx_pn[1] = seq.tkip.iv16 >> 8; 3534199d895fSJohannes Berg rx_pn[2 + hole] = seq.tkip.iv32; 3535199d895fSJohannes Berg rx_pn[3 + hole] = seq.tkip.iv32 >> 8; 3536199d895fSJohannes Berg rx_pn[4 + hole] = seq.tkip.iv32 >> 16; 3537199d895fSJohannes Berg rx_pn[5 + hole] = seq.tkip.iv32 >> 24; 3538a6dfbd04SJohannes Berg } else if (key_flags & cpu_to_le16(STA_KEY_FLG_EXT)) { 3539a6dfbd04SJohannes Berg rx_pn = seq.hw.seq; 3540a6dfbd04SJohannes Berg rx_pn_len = seq.hw.seq_len; 3541a6dfbd04SJohannes Berg } else { 3542a6dfbd04SJohannes Berg rx_pn[0] = seq.ccmp.pn[0]; 3543a6dfbd04SJohannes Berg rx_pn[1] = seq.ccmp.pn[1]; 3544199d895fSJohannes Berg rx_pn[2 + hole] = seq.ccmp.pn[2]; 3545199d895fSJohannes Berg rx_pn[3 + hole] = seq.ccmp.pn[3]; 3546199d895fSJohannes Berg rx_pn[4 + hole] = seq.ccmp.pn[4]; 3547199d895fSJohannes Berg rx_pn[5 + hole] = seq.ccmp.pn[5]; 3548a6dfbd04SJohannes Berg } 3549a6dfbd04SJohannes Berg 3550a6dfbd04SJohannes Berg if (iwl_mvm_pn_cmp(rx_pn, (u8 *)&u.cmd.common.rx_secur_seq_cnt, 3551a6dfbd04SJohannes Berg rx_pn_len) > 0) 3552a6dfbd04SJohannes Berg memcpy(&u.cmd.common.rx_secur_seq_cnt, rx_pn, 3553a6dfbd04SJohannes Berg rx_pn_len); 3554a6dfbd04SJohannes Berg } 3555a6dfbd04SJohannes Berg 3556199d895fSJohannes Berg if (api_ver >= 2) { 355745c458b4SSara Sharon u.cmd.transmit_seq_cnt = cpu_to_le64(pn); 355845c458b4SSara Sharon size = sizeof(u.cmd); 355945c458b4SSara Sharon } else { 356045c458b4SSara Sharon size = sizeof(u.cmd_v1); 356145c458b4SSara Sharon } 3562e705c121SKalle Valo 3563e705c121SKalle Valo status = ADD_STA_SUCCESS; 3564e705c121SKalle Valo if (cmd_flags & CMD_ASYNC) 356545c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA_KEY, CMD_ASYNC, size, 356645c458b4SSara Sharon &u.cmd); 3567e705c121SKalle Valo else 356845c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, 356945c458b4SSara Sharon &u.cmd, &status); 3570e705c121SKalle Valo 3571e705c121SKalle Valo switch (status) { 3572e705c121SKalle Valo case ADD_STA_SUCCESS: 3573e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "MODIFY_STA: set dynamic key passed\n"); 3574e705c121SKalle Valo break; 3575e705c121SKalle Valo default: 3576e705c121SKalle Valo ret = -EIO; 3577e705c121SKalle Valo IWL_ERR(mvm, "MODIFY_STA: set dynamic key failed\n"); 3578e705c121SKalle Valo break; 3579e705c121SKalle Valo } 3580e705c121SKalle Valo 3581e705c121SKalle Valo return ret; 3582e705c121SKalle Valo } 3583e705c121SKalle Valo 3584e705c121SKalle Valo static int iwl_mvm_send_sta_igtk(struct iwl_mvm *mvm, 3585e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3586e705c121SKalle Valo u8 sta_id, bool remove_key) 3587e705c121SKalle Valo { 3588e705c121SKalle Valo struct iwl_mvm_mgmt_mcast_key_cmd igtk_cmd = {}; 3589e705c121SKalle Valo 3590e705c121SKalle Valo /* verify the key details match the required command's expectations */ 35918e160ab8SAyala Beker if (WARN_ON((keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) || 3592b1fdc250SJohannes Berg (keyconf->keyidx != 4 && keyconf->keyidx != 5 && 3593b1fdc250SJohannes Berg keyconf->keyidx != 6 && keyconf->keyidx != 7) || 35948e160ab8SAyala Beker (keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC && 35958e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_128 && 35968e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_256))) 35978e160ab8SAyala Beker return -EINVAL; 35988e160ab8SAyala Beker 35998e160ab8SAyala Beker if (WARN_ON(!iwl_mvm_has_new_rx_api(mvm) && 36008e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC)) 3601e705c121SKalle Valo return -EINVAL; 3602e705c121SKalle Valo 3603e705c121SKalle Valo igtk_cmd.key_id = cpu_to_le32(keyconf->keyidx); 3604e705c121SKalle Valo igtk_cmd.sta_id = cpu_to_le32(sta_id); 3605e705c121SKalle Valo 3606e705c121SKalle Valo if (remove_key) { 3607197288d5SLuca Coelho /* This is a valid situation for IGTK */ 3608197288d5SLuca Coelho if (sta_id == IWL_MVM_INVALID_STA) 3609197288d5SLuca Coelho return 0; 3610197288d5SLuca Coelho 3611e705c121SKalle Valo igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_NOT_VALID); 3612e705c121SKalle Valo } else { 3613e705c121SKalle Valo struct ieee80211_key_seq seq; 3614e705c121SKalle Valo const u8 *pn; 3615e705c121SKalle Valo 3616aa950524SAyala Beker switch (keyconf->cipher) { 3617aa950524SAyala Beker case WLAN_CIPHER_SUITE_AES_CMAC: 3618aa950524SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_CCM); 3619aa950524SAyala Beker break; 36208e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_128: 36218e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_256: 36228e160ab8SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_GCMP); 36238e160ab8SAyala Beker break; 3624aa950524SAyala Beker default: 3625aa950524SAyala Beker return -EINVAL; 3626aa950524SAyala Beker } 3627aa950524SAyala Beker 36288e160ab8SAyala Beker memcpy(igtk_cmd.igtk, keyconf->key, keyconf->keylen); 36298e160ab8SAyala Beker if (keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 36308e160ab8SAyala Beker igtk_cmd.ctrl_flags |= 36318e160ab8SAyala Beker cpu_to_le32(STA_KEY_FLG_KEY_32BYTES); 3632e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3633e705c121SKalle Valo pn = seq.aes_cmac.pn; 3634e705c121SKalle Valo igtk_cmd.receive_seq_cnt = cpu_to_le64(((u64) pn[5] << 0) | 3635e705c121SKalle Valo ((u64) pn[4] << 8) | 3636e705c121SKalle Valo ((u64) pn[3] << 16) | 3637e705c121SKalle Valo ((u64) pn[2] << 24) | 3638e705c121SKalle Valo ((u64) pn[1] << 32) | 3639e705c121SKalle Valo ((u64) pn[0] << 40)); 3640e705c121SKalle Valo } 3641e705c121SKalle Valo 3642b1fdc250SJohannes Berg IWL_DEBUG_INFO(mvm, "%s %sIGTK (%d) for sta %u\n", 3643e705c121SKalle Valo remove_key ? "removing" : "installing", 3644b1fdc250SJohannes Berg keyconf->keyidx >= 6 ? "B" : "", 3645b1fdc250SJohannes Berg keyconf->keyidx, igtk_cmd.sta_id); 3646e705c121SKalle Valo 36478e160ab8SAyala Beker if (!iwl_mvm_has_new_rx_api(mvm)) { 36488e160ab8SAyala Beker struct iwl_mvm_mgmt_mcast_key_cmd_v1 igtk_cmd_v1 = { 36498e160ab8SAyala Beker .ctrl_flags = igtk_cmd.ctrl_flags, 36508e160ab8SAyala Beker .key_id = igtk_cmd.key_id, 36518e160ab8SAyala Beker .sta_id = igtk_cmd.sta_id, 36528e160ab8SAyala Beker .receive_seq_cnt = igtk_cmd.receive_seq_cnt 36538e160ab8SAyala Beker }; 36548e160ab8SAyala Beker 36558e160ab8SAyala Beker memcpy(igtk_cmd_v1.igtk, igtk_cmd.igtk, 36568e160ab8SAyala Beker ARRAY_SIZE(igtk_cmd_v1.igtk)); 36578e160ab8SAyala Beker return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 36588e160ab8SAyala Beker sizeof(igtk_cmd_v1), &igtk_cmd_v1); 36598e160ab8SAyala Beker } 3660e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 3661e705c121SKalle Valo sizeof(igtk_cmd), &igtk_cmd); 3662e705c121SKalle Valo } 3663e705c121SKalle Valo 3664e705c121SKalle Valo 3665e705c121SKalle Valo static inline u8 *iwl_mvm_get_mac_addr(struct iwl_mvm *mvm, 3666e705c121SKalle Valo struct ieee80211_vif *vif, 3667e705c121SKalle Valo struct ieee80211_sta *sta) 3668e705c121SKalle Valo { 3669e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3670e705c121SKalle Valo 3671e705c121SKalle Valo if (sta) 3672e705c121SKalle Valo return sta->addr; 3673e705c121SKalle Valo 3674e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 3675650cadb7SGregory Greenman mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 3676650cadb7SGregory Greenman u8 sta_id = mvmvif->deflink.ap_sta_id; 3677e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 3678e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3679e705c121SKalle Valo return sta->addr; 3680e705c121SKalle Valo } 3681e705c121SKalle Valo 3682e705c121SKalle Valo 3683e705c121SKalle Valo return NULL; 3684e705c121SKalle Valo } 3685e705c121SKalle Valo 3686e705c121SKalle Valo static int __iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3687e705c121SKalle Valo struct ieee80211_vif *vif, 3688e705c121SKalle Valo struct ieee80211_sta *sta, 3689e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 36904615fd15SEmmanuel Grumbach u8 key_offset, 3691e705c121SKalle Valo bool mcast) 3692e705c121SKalle Valo { 3693e705c121SKalle Valo const u8 *addr; 3694e705c121SKalle Valo struct ieee80211_key_seq seq; 3695e705c121SKalle Valo u16 p1k[5]; 369685aeb58cSDavid Spinadel u32 sta_id; 36974883145aSEmmanuel Grumbach bool mfp = false; 369885aeb58cSDavid Spinadel 369985aeb58cSDavid Spinadel if (sta) { 370085aeb58cSDavid Spinadel struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 370185aeb58cSDavid Spinadel 3702*c8ee33e1SGregory Greenman sta_id = mvm_sta->deflink.sta_id; 37034883145aSEmmanuel Grumbach mfp = sta->mfp; 370485aeb58cSDavid Spinadel } else if (vif->type == NL80211_IFTYPE_AP && 370585aeb58cSDavid Spinadel !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { 370685aeb58cSDavid Spinadel struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 370785aeb58cSDavid Spinadel 3708650cadb7SGregory Greenman sta_id = mvmvif->deflink.mcast_sta.sta_id; 370985aeb58cSDavid Spinadel } else { 371085aeb58cSDavid Spinadel IWL_ERR(mvm, "Failed to find station id\n"); 371185aeb58cSDavid Spinadel return -EINVAL; 371285aeb58cSDavid Spinadel } 3713e705c121SKalle Valo 371495a62c33SJohannes Berg if (keyconf->cipher == WLAN_CIPHER_SUITE_TKIP) { 3715e705c121SKalle Valo addr = iwl_mvm_get_mac_addr(mvm, vif, sta); 3716e705c121SKalle Valo /* get phase 1 key from mac80211 */ 3717e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3718e705c121SKalle Valo ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k); 371995a62c33SJohannes Berg 372095a62c33SJohannes Berg return iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 37214883145aSEmmanuel Grumbach seq.tkip.iv32, p1k, 0, key_offset, 37224883145aSEmmanuel Grumbach mfp); 3723e705c121SKalle Valo } 3724e705c121SKalle Valo 372595a62c33SJohannes Berg return iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 372695a62c33SJohannes Berg 0, NULL, 0, key_offset, mfp); 3727e705c121SKalle Valo } 3728e705c121SKalle Valo 3729e705c121SKalle Valo int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3730e705c121SKalle Valo struct ieee80211_vif *vif, 3731e705c121SKalle Valo struct ieee80211_sta *sta, 3732e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 37334615fd15SEmmanuel Grumbach u8 key_offset) 3734e705c121SKalle Valo { 3735e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 37365f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 373785aeb58cSDavid Spinadel u8 sta_id = IWL_MVM_INVALID_STA; 3738e705c121SKalle Valo int ret; 3739e705c121SKalle Valo static const u8 __maybe_unused zero_addr[ETH_ALEN] = {0}; 3740e705c121SKalle Valo 3741e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3742e705c121SKalle Valo 374385aeb58cSDavid Spinadel if (vif->type != NL80211_IFTYPE_AP || 374485aeb58cSDavid Spinadel keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) { 3745e705c121SKalle Valo /* Get the station id from the mvm local station table */ 37465f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 37475f7a1847SJohannes Berg if (!mvm_sta) { 37485f7a1847SJohannes Berg IWL_ERR(mvm, "Failed to find station\n"); 3749e705c121SKalle Valo return -EINVAL; 3750e705c121SKalle Valo } 3751*c8ee33e1SGregory Greenman sta_id = mvm_sta->deflink.sta_id; 3752e705c121SKalle Valo 3753e705c121SKalle Valo /* 3754e705c121SKalle Valo * It is possible that the 'sta' parameter is NULL, and thus 375585aeb58cSDavid Spinadel * there is a need to retrieve the sta from the local station 375685aeb58cSDavid Spinadel * table. 3757e705c121SKalle Valo */ 3758e705c121SKalle Valo if (!sta) { 375985aeb58cSDavid Spinadel sta = rcu_dereference_protected( 376085aeb58cSDavid Spinadel mvm->fw_id_to_mac_id[sta_id], 3761e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3762e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) { 3763e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 3764e705c121SKalle Valo return -EINVAL; 3765e705c121SKalle Valo } 3766e705c121SKalle Valo } 3767e705c121SKalle Valo 3768e705c121SKalle Valo if (WARN_ON_ONCE(iwl_mvm_sta_from_mac80211(sta)->vif != vif)) 3769e705c121SKalle Valo return -EINVAL; 3770e829b17cSBeni Lev } else { 3771e829b17cSBeni Lev struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3772e829b17cSBeni Lev 3773650cadb7SGregory Greenman sta_id = mvmvif->deflink.mcast_sta.sta_id; 3774e829b17cSBeni Lev } 3775e829b17cSBeni Lev 3776e829b17cSBeni Lev if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3777e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3778e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) { 3779e829b17cSBeni Lev ret = iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, false); 3780e829b17cSBeni Lev goto end; 378185aeb58cSDavid Spinadel } 3782e705c121SKalle Valo 37834615fd15SEmmanuel Grumbach /* If the key_offset is not pre-assigned, we need to find a 37844615fd15SEmmanuel Grumbach * new offset to use. In normal cases, the offset is not 37854615fd15SEmmanuel Grumbach * pre-assigned, but during HW_RESTART we want to reuse the 37864615fd15SEmmanuel Grumbach * same indices, so we pass them when this function is called. 37874615fd15SEmmanuel Grumbach * 37884615fd15SEmmanuel Grumbach * In D3 entry, we need to hardcoded the indices (because the 37894615fd15SEmmanuel Grumbach * firmware hardcodes the PTK offset to 0). In this case, we 37904615fd15SEmmanuel Grumbach * need to make sure we don't overwrite the hw_key_idx in the 37914615fd15SEmmanuel Grumbach * keyconf structure, because otherwise we cannot configure 37924615fd15SEmmanuel Grumbach * the original ones back when resuming. 3793e705c121SKalle Valo */ 37944615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) { 37954615fd15SEmmanuel Grumbach key_offset = iwl_mvm_set_fw_key_idx(mvm); 37964615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) 3797e705c121SKalle Valo return -ENOSPC; 37984615fd15SEmmanuel Grumbach keyconf->hw_key_idx = key_offset; 3799e705c121SKalle Valo } 3800e705c121SKalle Valo 38014615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, key_offset, mcast); 38029c3deeb5SLuca Coelho if (ret) 3803e705c121SKalle Valo goto end; 3804e705c121SKalle Valo 3805e705c121SKalle Valo /* 3806e705c121SKalle Valo * For WEP, the same key is used for multicast and unicast. Upload it 3807e705c121SKalle Valo * again, using the same key offset, and now pointing the other one 3808e705c121SKalle Valo * to the same key slot (offset). 3809e705c121SKalle Valo * If this fails, remove the original as well. 3810e705c121SKalle Valo */ 381185aeb58cSDavid Spinadel if ((keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 381285aeb58cSDavid Spinadel keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) && 381385aeb58cSDavid Spinadel sta) { 38144615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, 38154615fd15SEmmanuel Grumbach key_offset, !mcast); 3816e705c121SKalle Valo if (ret) { 3817e705c121SKalle Valo __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 38189c3deeb5SLuca Coelho goto end; 3819e705c121SKalle Valo } 3820e705c121SKalle Valo } 3821e705c121SKalle Valo 38229c3deeb5SLuca Coelho __set_bit(key_offset, mvm->fw_key_table); 38239c3deeb5SLuca Coelho 3824e705c121SKalle Valo end: 3825e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "key: cipher=%x len=%d idx=%d sta=%pM ret=%d\n", 3826e705c121SKalle Valo keyconf->cipher, keyconf->keylen, keyconf->keyidx, 3827e705c121SKalle Valo sta ? sta->addr : zero_addr, ret); 3828e705c121SKalle Valo return ret; 3829e705c121SKalle Valo } 3830e705c121SKalle Valo 3831e705c121SKalle Valo int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, 3832e705c121SKalle Valo struct ieee80211_vif *vif, 3833e705c121SKalle Valo struct ieee80211_sta *sta, 3834e705c121SKalle Valo struct ieee80211_key_conf *keyconf) 3835e705c121SKalle Valo { 3836e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 38375f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 38380ae98812SSara Sharon u8 sta_id = IWL_MVM_INVALID_STA; 3839e705c121SKalle Valo int ret, i; 3840e705c121SKalle Valo 3841e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3842e705c121SKalle Valo 38435f7a1847SJohannes Berg /* Get the station from the mvm local station table */ 38445f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 384571793b7dSLuca Coelho if (mvm_sta) 3846*c8ee33e1SGregory Greenman sta_id = mvm_sta->deflink.sta_id; 384785aeb58cSDavid Spinadel else if (!sta && vif->type == NL80211_IFTYPE_AP && mcast) 3848650cadb7SGregory Greenman sta_id = iwl_mvm_vif_from_mac80211(vif)->deflink.mcast_sta.sta_id; 384985aeb58cSDavid Spinadel 3850e705c121SKalle Valo 3851e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "mvm remove dynamic key: idx=%d sta=%d\n", 3852e705c121SKalle Valo keyconf->keyidx, sta_id); 3853e705c121SKalle Valo 3854197288d5SLuca Coelho if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 38558e160ab8SAyala Beker keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3856197288d5SLuca Coelho keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 3857e705c121SKalle Valo return iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, true); 3858e705c121SKalle Valo 3859e705c121SKalle Valo if (!__test_and_clear_bit(keyconf->hw_key_idx, mvm->fw_key_table)) { 3860e705c121SKalle Valo IWL_ERR(mvm, "offset %d not used in fw key table.\n", 3861e705c121SKalle Valo keyconf->hw_key_idx); 3862e705c121SKalle Valo return -ENOENT; 3863e705c121SKalle Valo } 3864e705c121SKalle Valo 3865e705c121SKalle Valo /* track which key was deleted last */ 3866e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3867e705c121SKalle Valo if (mvm->fw_key_deleted[i] < U8_MAX) 3868e705c121SKalle Valo mvm->fw_key_deleted[i]++; 3869e705c121SKalle Valo } 3870e705c121SKalle Valo mvm->fw_key_deleted[keyconf->hw_key_idx] = 0; 3871e705c121SKalle Valo 387285aeb58cSDavid Spinadel if (sta && !mvm_sta) { 3873e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "station non-existent, early return.\n"); 3874e705c121SKalle Valo return 0; 3875e705c121SKalle Valo } 3876e705c121SKalle Valo 3877e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 3878e705c121SKalle Valo if (ret) 3879e705c121SKalle Valo return ret; 3880e705c121SKalle Valo 3881e705c121SKalle Valo /* delete WEP key twice to get rid of (now useless) offset */ 3882e705c121SKalle Valo if (keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 3883e705c121SKalle Valo keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) 3884e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, !mcast); 3885e705c121SKalle Valo 3886e705c121SKalle Valo return ret; 3887e705c121SKalle Valo } 3888e705c121SKalle Valo 3889e705c121SKalle Valo void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, 3890e705c121SKalle Valo struct ieee80211_vif *vif, 3891e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3892e705c121SKalle Valo struct ieee80211_sta *sta, u32 iv32, 3893e705c121SKalle Valo u16 *phase1key) 3894e705c121SKalle Valo { 3895e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3896e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 38974883145aSEmmanuel Grumbach bool mfp = sta ? sta->mfp : false; 3898e705c121SKalle Valo 3899e705c121SKalle Valo rcu_read_lock(); 3900e705c121SKalle Valo 39015f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 39025f7a1847SJohannes Berg if (WARN_ON_ONCE(!mvm_sta)) 390312f17211SEmmanuel Grumbach goto unlock; 3904*c8ee33e1SGregory Greenman iwl_mvm_send_sta_key(mvm, mvm_sta->deflink.sta_id, keyconf, mcast, 39054883145aSEmmanuel Grumbach iv32, phase1key, CMD_ASYNC, keyconf->hw_key_idx, 39064883145aSEmmanuel Grumbach mfp); 390712f17211SEmmanuel Grumbach 390812f17211SEmmanuel Grumbach unlock: 3909e705c121SKalle Valo rcu_read_unlock(); 3910e705c121SKalle Valo } 3911e705c121SKalle Valo 3912e705c121SKalle Valo void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, 3913e705c121SKalle Valo struct ieee80211_sta *sta) 3914e705c121SKalle Valo { 3915e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3916e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3917e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3918*c8ee33e1SGregory Greenman .sta_id = mvmsta->deflink.sta_id, 3919e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_PS), 3920e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3921e705c121SKalle Valo }; 3922e705c121SKalle Valo int ret; 3923e705c121SKalle Valo 3924854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3925854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3926e705c121SKalle Valo if (ret) 3927e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3928e705c121SKalle Valo } 3929e705c121SKalle Valo 3930e705c121SKalle Valo void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, 3931e705c121SKalle Valo struct ieee80211_sta *sta, 3932e705c121SKalle Valo enum ieee80211_frame_release_type reason, 3933e705c121SKalle Valo u16 cnt, u16 tids, bool more_data, 39349a3fcf91SSara Sharon bool single_sta_queue) 3935e705c121SKalle Valo { 3936e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3937e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3938e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3939*c8ee33e1SGregory Greenman .sta_id = mvmsta->deflink.sta_id, 3940e705c121SKalle Valo .modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT, 3941e705c121SKalle Valo .sleep_tx_count = cpu_to_le16(cnt), 3942e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3943e705c121SKalle Valo }; 3944e705c121SKalle Valo int tid, ret; 3945e705c121SKalle Valo unsigned long _tids = tids; 3946e705c121SKalle Valo 3947e705c121SKalle Valo /* convert TIDs to ACs - we don't support TSPEC so that's OK 3948e705c121SKalle Valo * Note that this field is reserved and unused by firmware not 3949e705c121SKalle Valo * supporting GO uAPSD, so it's safe to always do this. 3950e705c121SKalle Valo */ 3951e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) 3952e705c121SKalle Valo cmd.awake_acs |= BIT(tid_to_ucode_ac[tid]); 3953e705c121SKalle Valo 39549a3fcf91SSara Sharon /* If we're releasing frames from aggregation or dqa queues then check 39559a3fcf91SSara Sharon * if all the queues that we're releasing frames from, combined, have: 3956e705c121SKalle Valo * - more frames than the service period, in which case more_data 3957e705c121SKalle Valo * needs to be set 3958e705c121SKalle Valo * - fewer than 'cnt' frames, in which case we need to adjust the 3959e705c121SKalle Valo * firmware command (but do that unconditionally) 3960e705c121SKalle Valo */ 39619a3fcf91SSara Sharon if (single_sta_queue) { 3962e705c121SKalle Valo int remaining = cnt; 396336be0eb6SEmmanuel Grumbach int sleep_tx_count; 3964e705c121SKalle Valo 3965e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3966e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) { 3967e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 3968e705c121SKalle Valo u16 n_queued; 3969e705c121SKalle Valo 3970e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 3971e705c121SKalle Valo 3972dd32162dSLiad Kaufman n_queued = iwl_mvm_tid_queued(mvm, tid_data); 3973e705c121SKalle Valo if (n_queued > remaining) { 3974e705c121SKalle Valo more_data = true; 3975e705c121SKalle Valo remaining = 0; 3976e705c121SKalle Valo break; 3977e705c121SKalle Valo } 3978e705c121SKalle Valo remaining -= n_queued; 3979e705c121SKalle Valo } 398036be0eb6SEmmanuel Grumbach sleep_tx_count = cnt - remaining; 398136be0eb6SEmmanuel Grumbach if (reason == IEEE80211_FRAME_RELEASE_UAPSD) 398236be0eb6SEmmanuel Grumbach mvmsta->sleep_tx_count = sleep_tx_count; 3983e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3984e705c121SKalle Valo 398536be0eb6SEmmanuel Grumbach cmd.sleep_tx_count = cpu_to_le16(sleep_tx_count); 3986e705c121SKalle Valo if (WARN_ON(cnt - remaining == 0)) { 3987e705c121SKalle Valo ieee80211_sta_eosp(sta); 3988e705c121SKalle Valo return; 3989e705c121SKalle Valo } 3990e705c121SKalle Valo } 3991e705c121SKalle Valo 3992e705c121SKalle Valo /* Note: this is ignored by firmware not supporting GO uAPSD */ 3993e705c121SKalle Valo if (more_data) 3994ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_MOREDATA; 3995e705c121SKalle Valo 3996e705c121SKalle Valo if (reason == IEEE80211_FRAME_RELEASE_PSPOLL) { 3997e705c121SKalle Valo mvmsta->next_status_eosp = true; 3998ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_PS_POLL; 3999e705c121SKalle Valo } else { 4000ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_UAPSD; 4001e705c121SKalle Valo } 4002e705c121SKalle Valo 4003156f92f2SEmmanuel Grumbach /* block the Tx queues until the FW updated the sleep Tx count */ 4004156f92f2SEmmanuel Grumbach iwl_trans_block_txq_ptrs(mvm->trans, true); 4005156f92f2SEmmanuel Grumbach 4006156f92f2SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 4007156f92f2SEmmanuel Grumbach CMD_ASYNC | CMD_WANT_ASYNC_CALLBACK, 4008854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 4009e705c121SKalle Valo if (ret) 4010e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 4011e705c121SKalle Valo } 4012e705c121SKalle Valo 4013e705c121SKalle Valo void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm, 4014e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 4015e705c121SKalle Valo { 4016e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 4017e705c121SKalle Valo struct iwl_mvm_eosp_notification *notif = (void *)pkt->data; 4018e705c121SKalle Valo struct ieee80211_sta *sta; 4019e705c121SKalle Valo u32 sta_id = le32_to_cpu(notif->sta_id); 4020e705c121SKalle Valo 4021be9ae34eSNathan Errera if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 4022e705c121SKalle Valo return; 4023e705c121SKalle Valo 4024e705c121SKalle Valo rcu_read_lock(); 4025e705c121SKalle Valo sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 4026e705c121SKalle Valo if (!IS_ERR_OR_NULL(sta)) 4027e705c121SKalle Valo ieee80211_sta_eosp(sta); 4028e705c121SKalle Valo rcu_read_unlock(); 4029e705c121SKalle Valo } 4030e705c121SKalle Valo 4031e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm, 4032e705c121SKalle Valo struct iwl_mvm_sta *mvmsta, bool disable) 4033e705c121SKalle Valo { 4034e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 4035e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 4036*c8ee33e1SGregory Greenman .sta_id = mvmsta->deflink.sta_id, 4037e705c121SKalle Valo .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 4038e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 4039e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 4040e705c121SKalle Valo }; 4041e705c121SKalle Valo int ret; 4042e705c121SKalle Valo 4043854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 4044854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 4045e705c121SKalle Valo if (ret) 4046e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 4047e705c121SKalle Valo } 4048e705c121SKalle Valo 4049e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm, 4050e705c121SKalle Valo struct ieee80211_sta *sta, 4051e705c121SKalle Valo bool disable) 4052e705c121SKalle Valo { 4053e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4054e705c121SKalle Valo 4055e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 4056e705c121SKalle Valo 4057e705c121SKalle Valo if (mvm_sta->disable_tx == disable) { 4058e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 4059e705c121SKalle Valo return; 4060e705c121SKalle Valo } 4061e705c121SKalle Valo 4062e705c121SKalle Valo mvm_sta->disable_tx = disable; 4063e705c121SKalle Valo 4064b1c6cec0SNaftali Goldstein /* 4065b1c6cec0SNaftali Goldstein * If sta PS state is handled by mac80211, tell it to start/stop 4066b1c6cec0SNaftali Goldstein * queuing tx for this station. 4067b1c6cec0SNaftali Goldstein */ 4068b1c6cec0SNaftali Goldstein if (!ieee80211_hw_check(mvm->hw, AP_LINK_PS)) 4069e705c121SKalle Valo ieee80211_sta_block_awake(mvm->hw, sta, disable); 4070e705c121SKalle Valo 4071e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvm_sta, disable); 4072e705c121SKalle Valo 4073e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 4074e705c121SKalle Valo } 4075e705c121SKalle Valo 4076ced19f26SSara Sharon static void iwl_mvm_int_sta_modify_disable_tx(struct iwl_mvm *mvm, 4077ced19f26SSara Sharon struct iwl_mvm_vif *mvmvif, 4078ced19f26SSara Sharon struct iwl_mvm_int_sta *sta, 4079ced19f26SSara Sharon bool disable) 4080ced19f26SSara Sharon { 4081ced19f26SSara Sharon u32 id = FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color); 4082ced19f26SSara Sharon struct iwl_mvm_add_sta_cmd cmd = { 4083ced19f26SSara Sharon .add_modify = STA_MODE_MODIFY, 4084ced19f26SSara Sharon .sta_id = sta->sta_id, 4085ced19f26SSara Sharon .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 4086ced19f26SSara Sharon .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 4087ced19f26SSara Sharon .mac_id_n_color = cpu_to_le32(id), 4088ced19f26SSara Sharon }; 4089ced19f26SSara Sharon int ret; 4090ced19f26SSara Sharon 4091e5d153ecSEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 4092ced19f26SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 4093ced19f26SSara Sharon if (ret) 4094ced19f26SSara Sharon IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 4095ced19f26SSara Sharon } 4096ced19f26SSara Sharon 4097e705c121SKalle Valo void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm, 4098e705c121SKalle Valo struct iwl_mvm_vif *mvmvif, 4099e705c121SKalle Valo bool disable) 4100e705c121SKalle Valo { 4101e705c121SKalle Valo struct ieee80211_sta *sta; 4102e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 4103e705c121SKalle Valo int i; 4104e705c121SKalle Valo 4105e5d153ecSEmmanuel Grumbach rcu_read_lock(); 4106e705c121SKalle Valo 4107e705c121SKalle Valo /* Block/unblock all the stations of the given mvmvif */ 4108be9ae34eSNathan Errera for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 4109e5d153ecSEmmanuel Grumbach sta = rcu_dereference(mvm->fw_id_to_mac_id[i]); 4110e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) 4111e705c121SKalle Valo continue; 4112e705c121SKalle Valo 4113e705c121SKalle Valo mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4114e705c121SKalle Valo if (mvm_sta->mac_id_n_color != 4115e705c121SKalle Valo FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)) 4116e705c121SKalle Valo continue; 4117e705c121SKalle Valo 4118e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx_ap(mvm, sta, disable); 4119e705c121SKalle Valo } 4120ced19f26SSara Sharon 4121e5d153ecSEmmanuel Grumbach rcu_read_unlock(); 4122e5d153ecSEmmanuel Grumbach 4123ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 4124ced19f26SSara Sharon return; 4125ced19f26SSara Sharon 4126ced19f26SSara Sharon /* Need to block/unblock also multicast station */ 4127650cadb7SGregory Greenman if (mvmvif->deflink.mcast_sta.sta_id != IWL_MVM_INVALID_STA) 4128ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 4129650cadb7SGregory Greenman &mvmvif->deflink.mcast_sta, 4130650cadb7SGregory Greenman disable); 4131ced19f26SSara Sharon 4132ced19f26SSara Sharon /* 4133ced19f26SSara Sharon * Only unblock the broadcast station (FW blocks it for immediate 4134ced19f26SSara Sharon * quiet, not the driver) 4135ced19f26SSara Sharon */ 4136650cadb7SGregory Greenman if (!disable && mvmvif->deflink.bcast_sta.sta_id != IWL_MVM_INVALID_STA) 4137ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 4138650cadb7SGregory Greenman &mvmvif->deflink.bcast_sta, 4139650cadb7SGregory Greenman disable); 4140e705c121SKalle Valo } 4141e705c121SKalle Valo 4142e705c121SKalle Valo void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4143e705c121SKalle Valo { 4144e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4145e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 4146e705c121SKalle Valo 4147e705c121SKalle Valo rcu_read_lock(); 4148e705c121SKalle Valo 4149650cadb7SGregory Greenman mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->deflink.ap_sta_id); 4150e705c121SKalle Valo 4151ad12b231SNathan Errera if (mvmsta) 4152e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true); 4153e705c121SKalle Valo 4154e705c121SKalle Valo rcu_read_unlock(); 4155e705c121SKalle Valo } 4156dd32162dSLiad Kaufman 4157dd32162dSLiad Kaufman u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data) 4158dd32162dSLiad Kaufman { 4159dd32162dSLiad Kaufman u16 sn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 4160dd32162dSLiad Kaufman 4161dd32162dSLiad Kaufman /* 41622f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 4163dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 4164dd32162dSLiad Kaufman */ 4165286ca8ebSLuca Coelho if (mvm->trans->trans_cfg->gen2) 4166dd32162dSLiad Kaufman sn &= 0xff; 4167dd32162dSLiad Kaufman 4168dd32162dSLiad Kaufman return ieee80211_sn_sub(sn, tid_data->next_reclaimed); 4169dd32162dSLiad Kaufman } 4170be82ecd3SAvraham Stern 4171be82ecd3SAvraham Stern int iwl_mvm_add_pasn_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 4172be82ecd3SAvraham Stern struct iwl_mvm_int_sta *sta, u8 *addr, u32 cipher, 4173be82ecd3SAvraham Stern u8 *key, u32 key_len) 4174be82ecd3SAvraham Stern { 4175be82ecd3SAvraham Stern int ret; 4176be82ecd3SAvraham Stern u16 queue; 4177be82ecd3SAvraham Stern struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4178be82ecd3SAvraham Stern struct ieee80211_key_conf *keyconf; 4179be82ecd3SAvraham Stern 4180be82ecd3SAvraham Stern ret = iwl_mvm_allocate_int_sta(mvm, sta, 0, 4181be82ecd3SAvraham Stern NL80211_IFTYPE_UNSPECIFIED, 4182be82ecd3SAvraham Stern IWL_STA_LINK); 4183be82ecd3SAvraham Stern if (ret) 4184be82ecd3SAvraham Stern return ret; 4185be82ecd3SAvraham Stern 4186be82ecd3SAvraham Stern ret = iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id, mvmvif->color, 4187be82ecd3SAvraham Stern addr, sta, &queue, 4188be82ecd3SAvraham Stern IWL_MVM_TX_FIFO_BE); 4189be82ecd3SAvraham Stern if (ret) 4190be82ecd3SAvraham Stern goto out; 4191be82ecd3SAvraham Stern 4192be82ecd3SAvraham Stern keyconf = kzalloc(sizeof(*keyconf) + key_len, GFP_KERNEL); 4193be82ecd3SAvraham Stern if (!keyconf) { 4194be82ecd3SAvraham Stern ret = -ENOBUFS; 4195be82ecd3SAvraham Stern goto out; 4196be82ecd3SAvraham Stern } 4197be82ecd3SAvraham Stern 4198be82ecd3SAvraham Stern keyconf->cipher = cipher; 4199be82ecd3SAvraham Stern memcpy(keyconf->key, key, key_len); 4200be82ecd3SAvraham Stern keyconf->keylen = key_len; 4201be82ecd3SAvraham Stern 4202be82ecd3SAvraham Stern ret = iwl_mvm_send_sta_key(mvm, sta->sta_id, keyconf, false, 4203be82ecd3SAvraham Stern 0, NULL, 0, 0, true); 4204be82ecd3SAvraham Stern kfree(keyconf); 4205be82ecd3SAvraham Stern return 0; 4206be82ecd3SAvraham Stern out: 4207be82ecd3SAvraham Stern iwl_mvm_dealloc_int_sta(mvm, sta); 4208be82ecd3SAvraham Stern return ret; 4209be82ecd3SAvraham Stern } 4210ad12b231SNathan Errera 4211ad12b231SNathan Errera void iwl_mvm_cancel_channel_switch(struct iwl_mvm *mvm, 4212ad12b231SNathan Errera struct ieee80211_vif *vif, 4213ad12b231SNathan Errera u32 mac_id) 4214ad12b231SNathan Errera { 4215ad12b231SNathan Errera struct iwl_cancel_channel_switch_cmd cancel_channel_switch_cmd = { 4216ad12b231SNathan Errera .mac_id = cpu_to_le32(mac_id), 4217ad12b231SNathan Errera }; 4218ad12b231SNathan Errera int ret; 4219ad12b231SNathan Errera 4220ad12b231SNathan Errera ret = iwl_mvm_send_cmd_pdu(mvm, 4221f0c86427SJohannes Berg WIDE_ID(MAC_CONF_GROUP, CANCEL_CHANNEL_SWITCH_CMD), 4222ad12b231SNathan Errera CMD_ASYNC, 4223ad12b231SNathan Errera sizeof(cancel_channel_switch_cmd), 4224ad12b231SNathan Errera &cancel_channel_switch_cmd); 4225ad12b231SNathan Errera if (ret) 4226ad12b231SNathan Errera IWL_ERR(mvm, "Failed to cancel the channel switch\n"); 4227ad12b231SNathan Errera } 4228