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" 12c7eca79dSAvraham Stern #include "time-sync.h" 13e705c121SKalle Valo 14854c5705SSara Sharon /* 15854c5705SSara Sharon * New version of ADD_STA_sta command added new fields at the end of the 16854c5705SSara Sharon * structure, so sending the size of the relevant API's structure is enough to 17854c5705SSara Sharon * support both API versions. 18854c5705SSara Sharon */ 19854c5705SSara Sharon static inline int iwl_mvm_add_sta_cmd_size(struct iwl_mvm *mvm) 20854c5705SSara Sharon { 21ced19f26SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) || 22ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 23ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd); 24ced19f26SSara Sharon else 25ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd_v7); 26854c5705SSara Sharon } 27854c5705SSara Sharon 28e705c121SKalle Valo static int iwl_mvm_find_free_sta_id(struct iwl_mvm *mvm, 29e705c121SKalle Valo enum nl80211_iftype iftype) 30e705c121SKalle Valo { 31e705c121SKalle Valo int sta_id; 32e705c121SKalle Valo u32 reserved_ids = 0; 33e705c121SKalle Valo 34be9ae34eSNathan Errera BUILD_BUG_ON(IWL_MVM_STATION_COUNT_MAX > 32); 35e705c121SKalle Valo WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)); 36e705c121SKalle Valo 37e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 38e705c121SKalle Valo 39e705c121SKalle Valo /* d0i3/d3 assumes the AP's sta_id (of sta vif) is 0. reserve it. */ 40e705c121SKalle Valo if (iftype != NL80211_IFTYPE_STATION) 41e705c121SKalle Valo reserved_ids = BIT(0); 42e705c121SKalle Valo 43e705c121SKalle Valo /* Don't take rcu_read_lock() since we are protected by mvm->mutex */ 44be9ae34eSNathan Errera for (sta_id = 0; sta_id < mvm->fw->ucode_capa.num_stations; sta_id++) { 45e705c121SKalle Valo if (BIT(sta_id) & reserved_ids) 46e705c121SKalle Valo continue; 47e705c121SKalle Valo 48e705c121SKalle Valo if (!rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 49e705c121SKalle Valo lockdep_is_held(&mvm->mutex))) 50e705c121SKalle Valo return sta_id; 51e705c121SKalle Valo } 520ae98812SSara Sharon return IWL_MVM_INVALID_STA; 53e705c121SKalle Valo } 54e705c121SKalle Valo 5577b6a2e5SMiri Korenblit /* Calculate the ampdu density and max size */ 5677b6a2e5SMiri Korenblit static u32 iwl_mvm_get_sta_ampdu_dens(struct ieee80211_sta *sta, 5777b6a2e5SMiri Korenblit u32 *_agg_size) 5877b6a2e5SMiri Korenblit { 5977b6a2e5SMiri Korenblit struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 6077b6a2e5SMiri Korenblit u32 agg_size = 0, mpdu_dens = 0; 6177b6a2e5SMiri Korenblit 6277b6a2e5SMiri Korenblit if (sta->deflink.ht_cap.ht_supported) 6377b6a2e5SMiri Korenblit mpdu_dens = sta->deflink.ht_cap.ampdu_density; 6477b6a2e5SMiri Korenblit 6577b6a2e5SMiri Korenblit if (mvm_sta->vif->bss_conf.chandef.chan->band == NL80211_BAND_6GHZ) { 6677b6a2e5SMiri Korenblit mpdu_dens = le16_get_bits(sta->deflink.he_6ghz_capa.capa, 6777b6a2e5SMiri Korenblit IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START); 6877b6a2e5SMiri Korenblit agg_size = le16_get_bits(sta->deflink.he_6ghz_capa.capa, 6977b6a2e5SMiri Korenblit IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP); 7077b6a2e5SMiri Korenblit } else if (sta->deflink.vht_cap.vht_supported) { 7177b6a2e5SMiri Korenblit agg_size = sta->deflink.vht_cap.cap & 7277b6a2e5SMiri Korenblit IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; 7377b6a2e5SMiri Korenblit agg_size >>= 7477b6a2e5SMiri Korenblit IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; 7577b6a2e5SMiri Korenblit } else if (sta->deflink.ht_cap.ht_supported) { 7677b6a2e5SMiri Korenblit agg_size = sta->deflink.ht_cap.ampdu_factor; 7777b6a2e5SMiri Korenblit } 7877b6a2e5SMiri Korenblit 7977b6a2e5SMiri Korenblit /* D6.0 10.12.2 A-MPDU length limit rules 8077b6a2e5SMiri Korenblit * A STA indicates the maximum length of the A-MPDU preEOF padding 8177b6a2e5SMiri Korenblit * that it can receive in an HE PPDU in the Maximum A-MPDU Length 8277b6a2e5SMiri Korenblit * Exponent field in its HT Capabilities, VHT Capabilities, 8377b6a2e5SMiri Korenblit * and HE 6 GHz Band Capabilities elements (if present) and the 8477b6a2e5SMiri Korenblit * Maximum AMPDU Length Exponent Extension field in its HE 8577b6a2e5SMiri Korenblit * Capabilities element 8677b6a2e5SMiri Korenblit */ 8777b6a2e5SMiri Korenblit if (sta->deflink.he_cap.has_he) 8877b6a2e5SMiri Korenblit agg_size += 8977b6a2e5SMiri Korenblit u8_get_bits(sta->deflink.he_cap.he_cap_elem.mac_cap_info[3], 9077b6a2e5SMiri Korenblit IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK); 9177b6a2e5SMiri Korenblit 9277b6a2e5SMiri Korenblit /* Limit to max A-MPDU supported by FW */ 9377b6a2e5SMiri Korenblit if (agg_size > (STA_FLG_MAX_AGG_SIZE_4M >> STA_FLG_MAX_AGG_SIZE_SHIFT)) 9477b6a2e5SMiri Korenblit agg_size = (STA_FLG_MAX_AGG_SIZE_4M >> 9577b6a2e5SMiri Korenblit STA_FLG_MAX_AGG_SIZE_SHIFT); 9677b6a2e5SMiri Korenblit 9777b6a2e5SMiri Korenblit *_agg_size = agg_size; 9877b6a2e5SMiri Korenblit return mpdu_dens; 9977b6a2e5SMiri Korenblit } 10077b6a2e5SMiri Korenblit 10177b6a2e5SMiri Korenblit static u8 iwl_mvm_get_sta_uapsd_acs(struct ieee80211_sta *sta) 10277b6a2e5SMiri Korenblit { 10377b6a2e5SMiri Korenblit u8 uapsd_acs = 0; 10477b6a2e5SMiri Korenblit 10577b6a2e5SMiri Korenblit if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK) 10677b6a2e5SMiri Korenblit uapsd_acs |= BIT(AC_BK); 10777b6a2e5SMiri Korenblit if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE) 10877b6a2e5SMiri Korenblit uapsd_acs |= BIT(AC_BE); 10977b6a2e5SMiri Korenblit if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI) 11077b6a2e5SMiri Korenblit uapsd_acs |= BIT(AC_VI); 11177b6a2e5SMiri Korenblit if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) 11277b6a2e5SMiri Korenblit uapsd_acs |= BIT(AC_VO); 11377b6a2e5SMiri Korenblit 11477b6a2e5SMiri Korenblit return uapsd_acs | uapsd_acs << 4; 11577b6a2e5SMiri Korenblit } 11677b6a2e5SMiri Korenblit 117e705c121SKalle Valo /* send station add/update command to firmware */ 118e705c121SKalle Valo int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 11924afba76SLiad Kaufman bool update, unsigned int flags) 120e705c121SKalle Valo { 121e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 122e705c121SKalle Valo struct iwl_mvm_add_sta_cmd add_sta_cmd = { 123e705c121SKalle Valo .sta_id = mvm_sta->sta_id, 124e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color), 125e705c121SKalle Valo .add_modify = update ? 1 : 0, 126e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_FAT_EN_MSK | 1278addabf8SNaftali Goldstein STA_FLG_MIMO_EN_MSK | 1288addabf8SNaftali Goldstein STA_FLG_RTS_MIMO_PROT), 129cf0cda19SLiad Kaufman .tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg), 130e705c121SKalle Valo }; 131e705c121SKalle Valo int ret; 132e705c121SKalle Valo u32 status; 133e705c121SKalle Valo u32 agg_size = 0, mpdu_dens = 0; 134e705c121SKalle Valo 135ced19f26SSara Sharon if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 136ced19f26SSara Sharon add_sta_cmd.station_type = mvm_sta->sta_type; 137ced19f26SSara Sharon 13824afba76SLiad Kaufman if (!update || (flags & STA_MODIFY_QUEUES)) { 139e705c121SKalle Valo memcpy(&add_sta_cmd.addr, sta->addr, ETH_ALEN); 14024afba76SLiad Kaufman 141bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) { 142bb49701bSSara Sharon add_sta_cmd.tfd_queue_msk = 143bb49701bSSara Sharon cpu_to_le32(mvm_sta->tfd_queue_msk); 144bb49701bSSara Sharon 14524afba76SLiad Kaufman if (flags & STA_MODIFY_QUEUES) 14624afba76SLiad Kaufman add_sta_cmd.modify_mask |= STA_MODIFY_QUEUES; 147bb49701bSSara Sharon } else { 148bb49701bSSara Sharon WARN_ON(flags & STA_MODIFY_QUEUES); 149bb49701bSSara Sharon } 150e705c121SKalle Valo } 151e705c121SKalle Valo 152046d2e7cSSriram R switch (sta->deflink.bandwidth) { 1535dca295dSIlan Peer case IEEE80211_STA_RX_BW_320: 154e705c121SKalle Valo case IEEE80211_STA_RX_BW_160: 155e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_160MHZ); 1565a2abdcaSGustavo A. R. Silva fallthrough; 157e705c121SKalle Valo case IEEE80211_STA_RX_BW_80: 158e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_80MHZ); 1595a2abdcaSGustavo A. R. Silva fallthrough; 160e705c121SKalle Valo case IEEE80211_STA_RX_BW_40: 161e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_40MHZ); 1625a2abdcaSGustavo A. R. Silva fallthrough; 163e705c121SKalle Valo case IEEE80211_STA_RX_BW_20: 164046d2e7cSSriram R if (sta->deflink.ht_cap.ht_supported) 165e705c121SKalle Valo add_sta_cmd.station_flags |= 166e705c121SKalle Valo cpu_to_le32(STA_FLG_FAT_EN_20MHZ); 167e705c121SKalle Valo break; 168e705c121SKalle Valo } 169e705c121SKalle Valo 170046d2e7cSSriram R switch (sta->deflink.rx_nss) { 171e705c121SKalle Valo case 1: 172e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 173e705c121SKalle Valo break; 174e705c121SKalle Valo case 2: 175e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO2); 176e705c121SKalle Valo break; 177e705c121SKalle Valo case 3 ... 8: 178e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO3); 179e705c121SKalle Valo break; 180e705c121SKalle Valo } 181e705c121SKalle Valo 182261ce887SBenjamin Berg switch (sta->deflink.smps_mode) { 183e705c121SKalle Valo case IEEE80211_SMPS_AUTOMATIC: 184e705c121SKalle Valo case IEEE80211_SMPS_NUM_MODES: 185e705c121SKalle Valo WARN_ON(1); 186e705c121SKalle Valo break; 187e705c121SKalle Valo case IEEE80211_SMPS_STATIC: 188e705c121SKalle Valo /* override NSS */ 189e705c121SKalle Valo add_sta_cmd.station_flags &= ~cpu_to_le32(STA_FLG_MIMO_EN_MSK); 190e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 191e705c121SKalle Valo break; 192e705c121SKalle Valo case IEEE80211_SMPS_DYNAMIC: 193e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_RTS_MIMO_PROT); 194e705c121SKalle Valo break; 195e705c121SKalle Valo case IEEE80211_SMPS_OFF: 196e705c121SKalle Valo /* nothing */ 197e705c121SKalle Valo break; 198e705c121SKalle Valo } 199e705c121SKalle Valo 20077b6a2e5SMiri Korenblit if (sta->deflink.ht_cap.ht_supported || 20177b6a2e5SMiri Korenblit mvm_sta->vif->bss_conf.chandef.chan->band == NL80211_BAND_6GHZ) 202e705c121SKalle Valo add_sta_cmd.station_flags_msk |= 203e705c121SKalle Valo cpu_to_le32(STA_FLG_MAX_AGG_SIZE_MSK | 204e705c121SKalle Valo STA_FLG_AGG_MPDU_DENS_MSK); 205e705c121SKalle Valo 20677b6a2e5SMiri Korenblit mpdu_dens = iwl_mvm_get_sta_ampdu_dens(sta, &agg_size); 207e705c121SKalle Valo add_sta_cmd.station_flags |= 208e705c121SKalle Valo cpu_to_le32(agg_size << STA_FLG_MAX_AGG_SIZE_SHIFT); 209e705c121SKalle Valo add_sta_cmd.station_flags |= 210e705c121SKalle Valo cpu_to_le32(mpdu_dens << STA_FLG_AGG_MPDU_DENS_SHIFT); 21177b6a2e5SMiri Korenblit 212d94c5a82SGregory Greenman if (mvm_sta->sta_state >= IEEE80211_STA_ASSOC) 21319c52f46SEmmanuel Grumbach add_sta_cmd.assoc_id = cpu_to_le16(sta->aid); 214e705c121SKalle Valo 21565e25482SJohannes Berg if (sta->wme) { 21665e25482SJohannes Berg add_sta_cmd.modify_mask |= STA_MODIFY_UAPSD_ACS; 21777b6a2e5SMiri Korenblit add_sta_cmd.uapsd_acs = iwl_mvm_get_sta_uapsd_acs(sta); 218e71ca5eaSEmmanuel Grumbach add_sta_cmd.sp_length = sta->max_sp ? sta->max_sp * 2 : 128; 21965e25482SJohannes Berg } 22065e25482SJohannes Berg 221e705c121SKalle Valo status = ADD_STA_SUCCESS; 222854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 223854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 224e705c121SKalle Valo &add_sta_cmd, &status); 225e705c121SKalle Valo if (ret) 226e705c121SKalle Valo return ret; 227e705c121SKalle Valo 228837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 229e705c121SKalle Valo case ADD_STA_SUCCESS: 230e705c121SKalle Valo IWL_DEBUG_ASSOC(mvm, "ADD_STA PASSED\n"); 231e705c121SKalle Valo break; 232e705c121SKalle Valo default: 233e705c121SKalle Valo ret = -EIO; 234e705c121SKalle Valo IWL_ERR(mvm, "ADD_STA failed\n"); 235e705c121SKalle Valo break; 236e705c121SKalle Valo } 237e705c121SKalle Valo 238e705c121SKalle Valo return ret; 239e705c121SKalle Valo } 240e705c121SKalle Valo 2418cef5344SKees Cook static void iwl_mvm_rx_agg_session_expired(struct timer_list *t) 24210b2b201SSara Sharon { 2438cef5344SKees Cook struct iwl_mvm_baid_data *data = 2448cef5344SKees Cook from_timer(data, t, session_timer); 2458cef5344SKees Cook struct iwl_mvm_baid_data __rcu **rcu_ptr = data->rcu_ptr; 24610b2b201SSara Sharon struct iwl_mvm_baid_data *ba_data; 24710b2b201SSara Sharon struct ieee80211_sta *sta; 24810b2b201SSara Sharon struct iwl_mvm_sta *mvm_sta; 24910b2b201SSara Sharon unsigned long timeout; 25010b2b201SSara Sharon 25110b2b201SSara Sharon rcu_read_lock(); 25210b2b201SSara Sharon 25310b2b201SSara Sharon ba_data = rcu_dereference(*rcu_ptr); 25410b2b201SSara Sharon 25510b2b201SSara Sharon if (WARN_ON(!ba_data)) 25610b2b201SSara Sharon goto unlock; 25710b2b201SSara Sharon 25810b2b201SSara Sharon if (!ba_data->timeout) 25910b2b201SSara Sharon goto unlock; 26010b2b201SSara Sharon 26110b2b201SSara Sharon timeout = ba_data->last_rx + TU_TO_JIFFIES(ba_data->timeout * 2); 26210b2b201SSara Sharon if (time_is_after_jiffies(timeout)) { 26310b2b201SSara Sharon mod_timer(&ba_data->session_timer, timeout); 26410b2b201SSara Sharon goto unlock; 26510b2b201SSara Sharon } 26610b2b201SSara Sharon 26710b2b201SSara Sharon /* Timer expired */ 26810b2b201SSara Sharon sta = rcu_dereference(ba_data->mvm->fw_id_to_mac_id[ba_data->sta_id]); 26961dd8a8aSEmmanuel Grumbach 27061dd8a8aSEmmanuel Grumbach /* 27161dd8a8aSEmmanuel Grumbach * sta should be valid unless the following happens: 27261dd8a8aSEmmanuel Grumbach * The firmware asserts which triggers a reconfig flow, but 27361dd8a8aSEmmanuel Grumbach * the reconfig fails before we set the pointer to sta into 27461dd8a8aSEmmanuel Grumbach * the fw_id_to_mac_id pointer table. Mac80211 can't stop 27561dd8a8aSEmmanuel Grumbach * A-MDPU and hence the timer continues to run. Then, the 27661dd8a8aSEmmanuel Grumbach * timer expires and sta is NULL. 27761dd8a8aSEmmanuel Grumbach */ 27861dd8a8aSEmmanuel Grumbach if (!sta) 27961dd8a8aSEmmanuel Grumbach goto unlock; 28061dd8a8aSEmmanuel Grumbach 28110b2b201SSara Sharon mvm_sta = iwl_mvm_sta_from_mac80211(sta); 28220fc690fSNaftali Goldstein ieee80211_rx_ba_timer_expired(mvm_sta->vif, 28310b2b201SSara Sharon sta->addr, ba_data->tid); 28410b2b201SSara Sharon unlock: 28510b2b201SSara Sharon rcu_read_unlock(); 28610b2b201SSara Sharon } 28710b2b201SSara Sharon 2889794c64fSLiad Kaufman /* Disable aggregations for a bitmap of TIDs for a given station */ 2899794c64fSLiad Kaufman static int iwl_mvm_invalidate_sta_queue(struct iwl_mvm *mvm, int queue, 2909794c64fSLiad Kaufman unsigned long disable_agg_tids, 2919794c64fSLiad Kaufman bool remove_queue) 2929794c64fSLiad Kaufman { 2939794c64fSLiad Kaufman struct iwl_mvm_add_sta_cmd cmd = {}; 2949794c64fSLiad Kaufman struct ieee80211_sta *sta; 2959794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 2969794c64fSLiad Kaufman u32 status; 2979794c64fSLiad Kaufman u8 sta_id; 2989794c64fSLiad Kaufman 299bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 300bb49701bSSara Sharon return -EINVAL; 301bb49701bSSara Sharon 3029794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 3039794c64fSLiad Kaufman 3049794c64fSLiad Kaufman rcu_read_lock(); 3059794c64fSLiad Kaufman 3069794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 3079794c64fSLiad Kaufman 3089794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 3099794c64fSLiad Kaufman rcu_read_unlock(); 3109794c64fSLiad Kaufman return -EINVAL; 3119794c64fSLiad Kaufman } 3129794c64fSLiad Kaufman 3139794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 3149794c64fSLiad Kaufman 3159794c64fSLiad Kaufman mvmsta->tid_disable_agg |= disable_agg_tids; 3169794c64fSLiad Kaufman 3179794c64fSLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 3189794c64fSLiad Kaufman cmd.sta_id = mvmsta->sta_id; 3199794c64fSLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 3209794c64fSLiad Kaufman cmd.modify_mask = STA_MODIFY_QUEUES; 3219794c64fSLiad Kaufman if (disable_agg_tids) 3229794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 3239794c64fSLiad Kaufman if (remove_queue) 3249794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_QUEUE_REMOVAL; 3259794c64fSLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 3269794c64fSLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 3279794c64fSLiad Kaufman 3289794c64fSLiad Kaufman rcu_read_unlock(); 3299794c64fSLiad Kaufman 3309794c64fSLiad Kaufman /* Notify FW of queue removal from the STA queues */ 3319794c64fSLiad Kaufman status = ADD_STA_SUCCESS; 332b2c1bf59SSara Sharon return iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 3339794c64fSLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), 3349794c64fSLiad Kaufman &cmd, &status); 3359794c64fSLiad Kaufman } 3369794c64fSLiad Kaufman 337cfbc6c4cSSara Sharon static int iwl_mvm_disable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 338c5a976cfSJohannes Berg int sta_id, u16 *queueptr, u8 tid) 33999448a8cSJohannes Berg { 340c6ce1c74SJohannes Berg int queue = *queueptr; 34199448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 34299448a8cSJohannes Berg .scd_queue = queue, 34399448a8cSJohannes Berg .action = SCD_CFG_DISABLE_QUEUE, 34499448a8cSJohannes Berg }; 34599448a8cSJohannes Berg int ret; 34699448a8cSJohannes Berg 347227f2597SJohannes Berg lockdep_assert_held(&mvm->mutex); 348227f2597SJohannes Berg 34999448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) { 350227f2597SJohannes Berg if (mvm->sta_remove_requires_queue_remove) { 351227f2597SJohannes Berg u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, 352227f2597SJohannes Berg SCD_QUEUE_CONFIG_CMD); 353227f2597SJohannes Berg struct iwl_scd_queue_cfg_cmd remove_cmd = { 354227f2597SJohannes Berg .operation = cpu_to_le32(IWL_SCD_QUEUE_REMOVE), 355c5a976cfSJohannes Berg .u.remove.tid = cpu_to_le32(tid), 356c5a976cfSJohannes Berg .u.remove.sta_mask = cpu_to_le32(BIT(sta_id)), 357227f2597SJohannes Berg }; 358227f2597SJohannes Berg 359227f2597SJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, 360227f2597SJohannes Berg sizeof(remove_cmd), 361227f2597SJohannes Berg &remove_cmd); 362227f2597SJohannes Berg } else { 363227f2597SJohannes Berg ret = 0; 364227f2597SJohannes Berg } 365227f2597SJohannes Berg 36699448a8cSJohannes Berg iwl_trans_txq_free(mvm->trans, queue); 367c6ce1c74SJohannes Berg *queueptr = IWL_MVM_INVALID_QUEUE; 36899448a8cSJohannes Berg 369227f2597SJohannes Berg return ret; 37099448a8cSJohannes Berg } 37199448a8cSJohannes Berg 372f3f240f9SJohannes Berg if (WARN_ON(mvm->queue_info[queue].tid_bitmap == 0)) 37399448a8cSJohannes Berg return 0; 37499448a8cSJohannes Berg 37599448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 37699448a8cSJohannes Berg 3771c14089eSJohannes Berg cmd.action = mvm->queue_info[queue].tid_bitmap ? 37899448a8cSJohannes Berg SCD_CFG_ENABLE_QUEUE : SCD_CFG_DISABLE_QUEUE; 37999448a8cSJohannes Berg if (cmd.action == SCD_CFG_DISABLE_QUEUE) 38099448a8cSJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_FREE; 38199448a8cSJohannes Berg 38299448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 383cfbc6c4cSSara Sharon "Disabling TXQ #%d tids=0x%x\n", 38499448a8cSJohannes Berg queue, 385cfbc6c4cSSara Sharon mvm->queue_info[queue].tid_bitmap); 38699448a8cSJohannes Berg 38799448a8cSJohannes Berg /* If the queue is still enabled - nothing left to do in this func */ 388f3f240f9SJohannes Berg if (cmd.action == SCD_CFG_ENABLE_QUEUE) 38999448a8cSJohannes Berg return 0; 39099448a8cSJohannes Berg 39199448a8cSJohannes Berg cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 39299448a8cSJohannes Berg cmd.tid = mvm->queue_info[queue].txq_tid; 39399448a8cSJohannes Berg 39499448a8cSJohannes Berg /* Make sure queue info is correct even though we overwrite it */ 395cfbc6c4cSSara Sharon WARN(mvm->queue_info[queue].tid_bitmap, 396cfbc6c4cSSara Sharon "TXQ #%d info out-of-sync - tids=0x%x\n", 397cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 39899448a8cSJohannes Berg 39999448a8cSJohannes Berg /* If we are here - the queue is freed and we can zero out these vals */ 40099448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap = 0; 401cfbc6c4cSSara Sharon 402cfbc6c4cSSara Sharon if (sta) { 403cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 404cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 405cfbc6c4cSSara Sharon 406cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 40795b0f666SJose Ignacio Tornos Martinez list_del_init(&mvmtxq->list); 408cfbc6c4cSSara Sharon } 40999448a8cSJohannes Berg 41099448a8cSJohannes Berg /* Regardless if this is a reserved TXQ for a STA - mark it as false */ 41199448a8cSJohannes Berg mvm->queue_info[queue].reserved = false; 41299448a8cSJohannes Berg 41399448a8cSJohannes Berg iwl_trans_txq_disable(mvm->trans, queue, false); 41464ff7eb0SJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, 41599448a8cSJohannes Berg sizeof(struct iwl_scd_txq_cfg_cmd), &cmd); 41699448a8cSJohannes Berg 41799448a8cSJohannes Berg if (ret) 41899448a8cSJohannes Berg IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n", 41999448a8cSJohannes Berg queue, ret); 42099448a8cSJohannes Berg return ret; 42199448a8cSJohannes Berg } 42299448a8cSJohannes Berg 42342db09c1SLiad Kaufman static int iwl_mvm_get_queue_agg_tids(struct iwl_mvm *mvm, int queue) 42442db09c1SLiad Kaufman { 42542db09c1SLiad Kaufman struct ieee80211_sta *sta; 42642db09c1SLiad Kaufman struct iwl_mvm_sta *mvmsta; 42742db09c1SLiad Kaufman unsigned long tid_bitmap; 42842db09c1SLiad Kaufman unsigned long agg_tids = 0; 429806911daSSharon Dvir u8 sta_id; 43042db09c1SLiad Kaufman int tid; 43142db09c1SLiad Kaufman 43242db09c1SLiad Kaufman lockdep_assert_held(&mvm->mutex); 43342db09c1SLiad Kaufman 434bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 435bb49701bSSara Sharon return -EINVAL; 436bb49701bSSara Sharon 43742db09c1SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 43842db09c1SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 43942db09c1SLiad Kaufman 44042db09c1SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 44142db09c1SLiad Kaufman lockdep_is_held(&mvm->mutex)); 44242db09c1SLiad Kaufman 44342db09c1SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 44442db09c1SLiad Kaufman return -EINVAL; 44542db09c1SLiad Kaufman 44642db09c1SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 44742db09c1SLiad Kaufman 44842db09c1SLiad Kaufman spin_lock_bh(&mvmsta->lock); 44942db09c1SLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 45042db09c1SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 45142db09c1SLiad Kaufman agg_tids |= BIT(tid); 45242db09c1SLiad Kaufman } 45342db09c1SLiad Kaufman spin_unlock_bh(&mvmsta->lock); 45442db09c1SLiad Kaufman 45542db09c1SLiad Kaufman return agg_tids; 45642db09c1SLiad Kaufman } 45742db09c1SLiad Kaufman 4589794c64fSLiad Kaufman /* 4599794c64fSLiad Kaufman * Remove a queue from a station's resources. 4609794c64fSLiad Kaufman * Note that this only marks as free. It DOESN'T delete a BA agreement, and 4619794c64fSLiad Kaufman * doesn't disable the queue 4629794c64fSLiad Kaufman */ 4639794c64fSLiad Kaufman static int iwl_mvm_remove_sta_queue_marking(struct iwl_mvm *mvm, int queue) 4649794c64fSLiad Kaufman { 4659794c64fSLiad Kaufman struct ieee80211_sta *sta; 4669794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 4679794c64fSLiad Kaufman unsigned long tid_bitmap; 4689794c64fSLiad Kaufman unsigned long disable_agg_tids = 0; 4699794c64fSLiad Kaufman u8 sta_id; 4709794c64fSLiad Kaufman int tid; 4719794c64fSLiad Kaufman 4729794c64fSLiad Kaufman lockdep_assert_held(&mvm->mutex); 4739794c64fSLiad Kaufman 474bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 475bb49701bSSara Sharon return -EINVAL; 476bb49701bSSara Sharon 4779794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 4789794c64fSLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 4799794c64fSLiad Kaufman 4809794c64fSLiad Kaufman rcu_read_lock(); 4819794c64fSLiad Kaufman 4829794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 4839794c64fSLiad Kaufman 4849794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 4859794c64fSLiad Kaufman rcu_read_unlock(); 4869794c64fSLiad Kaufman return 0; 4879794c64fSLiad Kaufman } 4889794c64fSLiad Kaufman 4899794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 4909794c64fSLiad Kaufman 4919794c64fSLiad Kaufman spin_lock_bh(&mvmsta->lock); 49242db09c1SLiad Kaufman /* Unmap MAC queues and TIDs from this queue */ 4939794c64fSLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 494cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 495cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 496cfbc6c4cSSara Sharon 4979794c64fSLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 4989794c64fSLiad Kaufman disable_agg_tids |= BIT(tid); 4996862fceeSSara Sharon mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 500cfbc6c4cSSara Sharon 501cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 50295b0f666SJose Ignacio Tornos Martinez list_del_init(&mvmtxq->list); 5039794c64fSLiad Kaufman } 5049794c64fSLiad Kaufman 50542db09c1SLiad Kaufman mvmsta->tfd_queue_msk &= ~BIT(queue); /* Don't use this queue anymore */ 5069794c64fSLiad Kaufman spin_unlock_bh(&mvmsta->lock); 5079794c64fSLiad Kaufman 5089794c64fSLiad Kaufman rcu_read_unlock(); 5099794c64fSLiad Kaufman 51006bc6f6eSJohannes Berg /* 51106bc6f6eSJohannes Berg * The TX path may have been using this TXQ_ID from the tid_data, 51206bc6f6eSJohannes Berg * so make sure it's no longer running so that we can safely reuse 51306bc6f6eSJohannes Berg * this TXQ later. We've set all the TIDs to IWL_MVM_INVALID_QUEUE 51406bc6f6eSJohannes Berg * above, but nothing guarantees we've stopped using them. Thus, 51506bc6f6eSJohannes Berg * without this, we could get to iwl_mvm_disable_txq() and remove 51606bc6f6eSJohannes Berg * the queue while still sending frames to it. 51706bc6f6eSJohannes Berg */ 51806bc6f6eSJohannes Berg synchronize_net(); 51906bc6f6eSJohannes Berg 5209794c64fSLiad Kaufman return disable_agg_tids; 5219794c64fSLiad Kaufman } 5229794c64fSLiad Kaufman 52301796ff2SSara Sharon static int iwl_mvm_free_inactive_queue(struct iwl_mvm *mvm, int queue, 524cfbc6c4cSSara Sharon struct ieee80211_sta *old_sta, 525724fe771SJohannes Berg u8 new_sta_id) 52601796ff2SSara Sharon { 52701796ff2SSara Sharon struct iwl_mvm_sta *mvmsta; 528cfbc6c4cSSara Sharon u8 sta_id, tid; 52901796ff2SSara Sharon unsigned long disable_agg_tids = 0; 530724fe771SJohannes Berg bool same_sta; 531c6ce1c74SJohannes Berg u16 queue_tmp = queue; 53201796ff2SSara Sharon int ret; 53301796ff2SSara Sharon 53401796ff2SSara Sharon lockdep_assert_held(&mvm->mutex); 53501796ff2SSara Sharon 536bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 537bb49701bSSara Sharon return -EINVAL; 538bb49701bSSara Sharon 53901796ff2SSara Sharon sta_id = mvm->queue_info[queue].ra_sta_id; 54001796ff2SSara Sharon tid = mvm->queue_info[queue].txq_tid; 54101796ff2SSara Sharon 542724fe771SJohannes Berg same_sta = sta_id == new_sta_id; 543724fe771SJohannes Berg 54401796ff2SSara Sharon mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 545e3df1e4bSSharon Dvir if (WARN_ON(!mvmsta)) 546e3df1e4bSSharon Dvir return -EINVAL; 54701796ff2SSara Sharon 54801796ff2SSara Sharon disable_agg_tids = iwl_mvm_remove_sta_queue_marking(mvm, queue); 54901796ff2SSara Sharon /* Disable the queue */ 55001796ff2SSara Sharon if (disable_agg_tids) 55101796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 55201796ff2SSara Sharon disable_agg_tids, false); 55301796ff2SSara Sharon 554c5a976cfSJohannes Berg ret = iwl_mvm_disable_txq(mvm, old_sta, sta_id, &queue_tmp, tid); 55501796ff2SSara Sharon if (ret) { 55601796ff2SSara Sharon IWL_ERR(mvm, 55701796ff2SSara Sharon "Failed to free inactive queue %d (ret=%d)\n", 55801796ff2SSara Sharon queue, ret); 55901796ff2SSara Sharon 56001796ff2SSara Sharon return ret; 56101796ff2SSara Sharon } 56201796ff2SSara Sharon 56301796ff2SSara Sharon /* If TXQ is allocated to another STA, update removal in FW */ 56401796ff2SSara Sharon if (!same_sta) 56501796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 0, true); 56601796ff2SSara Sharon 56701796ff2SSara Sharon return 0; 56801796ff2SSara Sharon } 56901796ff2SSara Sharon 57042db09c1SLiad Kaufman static int iwl_mvm_get_shared_queue(struct iwl_mvm *mvm, 57142db09c1SLiad Kaufman unsigned long tfd_queue_mask, u8 ac) 57242db09c1SLiad Kaufman { 57342db09c1SLiad Kaufman int queue = 0; 57442db09c1SLiad Kaufman u8 ac_to_queue[IEEE80211_NUM_ACS]; 57542db09c1SLiad Kaufman int i; 57642db09c1SLiad Kaufman 57790d2d94cSJohannes Berg /* 57890d2d94cSJohannes Berg * This protects us against grabbing a queue that's being reconfigured 57990d2d94cSJohannes Berg * by the inactivity checker. 58090d2d94cSJohannes Berg */ 58190d2d94cSJohannes Berg lockdep_assert_held(&mvm->mutex); 58290d2d94cSJohannes Berg 583bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 584bb49701bSSara Sharon return -EINVAL; 58542db09c1SLiad Kaufman 58642db09c1SLiad Kaufman memset(&ac_to_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(ac_to_queue)); 58742db09c1SLiad Kaufman 58842db09c1SLiad Kaufman /* See what ACs the existing queues for this STA have */ 58942db09c1SLiad Kaufman for_each_set_bit(i, &tfd_queue_mask, IWL_MVM_DQA_MAX_DATA_QUEUE) { 59042db09c1SLiad Kaufman /* Only DATA queues can be shared */ 59142db09c1SLiad Kaufman if (i < IWL_MVM_DQA_MIN_DATA_QUEUE && 59242db09c1SLiad Kaufman i != IWL_MVM_DQA_BSS_CLIENT_QUEUE) 59342db09c1SLiad Kaufman continue; 59442db09c1SLiad Kaufman 59542db09c1SLiad Kaufman ac_to_queue[mvm->queue_info[i].mac80211_ac] = i; 59642db09c1SLiad Kaufman } 59742db09c1SLiad Kaufman 59842db09c1SLiad Kaufman /* 59942db09c1SLiad Kaufman * The queue to share is chosen only from DATA queues as follows (in 60042db09c1SLiad Kaufman * descending priority): 60142db09c1SLiad Kaufman * 1. An AC_BE queue 60242db09c1SLiad Kaufman * 2. Same AC queue 60342db09c1SLiad Kaufman * 3. Highest AC queue that is lower than new AC 60442db09c1SLiad Kaufman * 4. Any existing AC (there always is at least 1 DATA queue) 60542db09c1SLiad Kaufman */ 60642db09c1SLiad Kaufman 60742db09c1SLiad Kaufman /* Priority 1: An AC_BE queue */ 60842db09c1SLiad Kaufman if (ac_to_queue[IEEE80211_AC_BE] != IEEE80211_INVAL_HW_QUEUE) 60942db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BE]; 61042db09c1SLiad Kaufman /* Priority 2: Same AC queue */ 61142db09c1SLiad Kaufman else if (ac_to_queue[ac] != IEEE80211_INVAL_HW_QUEUE) 61242db09c1SLiad Kaufman queue = ac_to_queue[ac]; 61342db09c1SLiad Kaufman /* Priority 3a: If new AC is VO and VI exists - use VI */ 61442db09c1SLiad Kaufman else if (ac == IEEE80211_AC_VO && 61542db09c1SLiad Kaufman ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 61642db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 61742db09c1SLiad Kaufman /* Priority 3b: No BE so only AC less than the new one is BK */ 61842db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_BK] != IEEE80211_INVAL_HW_QUEUE) 61942db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BK]; 62042db09c1SLiad Kaufman /* Priority 4a: No BE nor BK - use VI if exists */ 62142db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 62242db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 62342db09c1SLiad Kaufman /* Priority 4b: No BE, BK nor VI - use VO if exists */ 62442db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VO] != IEEE80211_INVAL_HW_QUEUE) 62542db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VO]; 62642db09c1SLiad Kaufman 62742db09c1SLiad Kaufman /* Make sure queue found (or not) is legal */ 6289f9af3d7SLiad Kaufman if (!iwl_mvm_is_dqa_data_queue(mvm, queue) && 6299f9af3d7SLiad Kaufman !iwl_mvm_is_dqa_mgmt_queue(mvm, queue) && 6309f9af3d7SLiad Kaufman (queue != IWL_MVM_DQA_BSS_CLIENT_QUEUE)) { 63142db09c1SLiad Kaufman IWL_ERR(mvm, "No DATA queues available to share\n"); 6329f9af3d7SLiad Kaufman return -ENOSPC; 6339f9af3d7SLiad Kaufman } 6349f9af3d7SLiad Kaufman 63542db09c1SLiad Kaufman return queue; 63642db09c1SLiad Kaufman } 63742db09c1SLiad Kaufman 638a54844d4SJohannes Berg /* Re-configure the SCD for a queue that has already been configured */ 639a54844d4SJohannes Berg static int iwl_mvm_reconfig_scd(struct iwl_mvm *mvm, int queue, int fifo, 640a54844d4SJohannes Berg int sta_id, int tid, int frame_limit, u16 ssn) 641a54844d4SJohannes Berg { 642a54844d4SJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 643a54844d4SJohannes Berg .scd_queue = queue, 644a54844d4SJohannes Berg .action = SCD_CFG_ENABLE_QUEUE, 645a54844d4SJohannes Berg .window = frame_limit, 646a54844d4SJohannes Berg .sta_id = sta_id, 647a54844d4SJohannes Berg .ssn = cpu_to_le16(ssn), 648a54844d4SJohannes Berg .tx_fifo = fifo, 649a54844d4SJohannes Berg .aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 650a54844d4SJohannes Berg queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE), 651a54844d4SJohannes Berg .tid = tid, 652a54844d4SJohannes Berg }; 653a54844d4SJohannes Berg int ret; 654a54844d4SJohannes Berg 655a54844d4SJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 656a54844d4SJohannes Berg return -EINVAL; 657a54844d4SJohannes Berg 658a54844d4SJohannes Berg if (WARN(mvm->queue_info[queue].tid_bitmap == 0, 659a54844d4SJohannes Berg "Trying to reconfig unallocated queue %d\n", queue)) 660a54844d4SJohannes Berg return -ENXIO; 661a54844d4SJohannes Berg 662a54844d4SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Reconfig SCD for TXQ #%d\n", queue); 663a54844d4SJohannes Berg 664a54844d4SJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 665a54844d4SJohannes Berg WARN_ONCE(ret, "Failed to re-configure queue %d on FIFO %d, ret=%d\n", 666a54844d4SJohannes Berg queue, fifo, ret); 667a54844d4SJohannes Berg 668a54844d4SJohannes Berg return ret; 669a54844d4SJohannes Berg } 670a54844d4SJohannes Berg 67158f2cc57SLiad Kaufman /* 6729f9af3d7SLiad Kaufman * If a given queue has a higher AC than the TID stream that is being compared 6739f9af3d7SLiad Kaufman * to, the queue needs to be redirected to the lower AC. This function does that 67458f2cc57SLiad Kaufman * in such a case, otherwise - if no redirection required - it does nothing, 67558f2cc57SLiad Kaufman * unless the %force param is true. 67658f2cc57SLiad Kaufman */ 677cfbc6c4cSSara Sharon static int iwl_mvm_redirect_queue(struct iwl_mvm *mvm, int queue, int tid, 67858f2cc57SLiad Kaufman int ac, int ssn, unsigned int wdg_timeout, 679cfbc6c4cSSara Sharon bool force, struct iwl_mvm_txq *txq) 68058f2cc57SLiad Kaufman { 68158f2cc57SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 68258f2cc57SLiad Kaufman .scd_queue = queue, 683f7c692deSLiad Kaufman .action = SCD_CFG_DISABLE_QUEUE, 68458f2cc57SLiad Kaufman }; 68558f2cc57SLiad Kaufman bool shared_queue; 68658f2cc57SLiad Kaufman int ret; 68758f2cc57SLiad Kaufman 688bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 689bb49701bSSara Sharon return -EINVAL; 690bb49701bSSara Sharon 69158f2cc57SLiad Kaufman /* 69258f2cc57SLiad Kaufman * If the AC is lower than current one - FIFO needs to be redirected to 69358f2cc57SLiad Kaufman * the lowest one of the streams in the queue. Check if this is needed 69458f2cc57SLiad Kaufman * here. 69558f2cc57SLiad Kaufman * Notice that the enum ieee80211_ac_numbers is "flipped", so BK is with 69658f2cc57SLiad Kaufman * value 3 and VO with value 0, so to check if ac X is lower than ac Y 69758f2cc57SLiad Kaufman * we need to check if the numerical value of X is LARGER than of Y. 69858f2cc57SLiad Kaufman */ 69958f2cc57SLiad Kaufman if (ac <= mvm->queue_info[queue].mac80211_ac && !force) { 70058f2cc57SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 70158f2cc57SLiad Kaufman "No redirection needed on TXQ #%d\n", 70258f2cc57SLiad Kaufman queue); 70358f2cc57SLiad Kaufman return 0; 70458f2cc57SLiad Kaufman } 70558f2cc57SLiad Kaufman 70658f2cc57SLiad Kaufman cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 70758f2cc57SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[mvm->queue_info[queue].mac80211_ac]; 708edbe961cSLiad Kaufman cmd.tid = mvm->queue_info[queue].txq_tid; 7091c14089eSJohannes Berg shared_queue = hweight16(mvm->queue_info[queue].tid_bitmap) > 1; 71058f2cc57SLiad Kaufman 7119f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Redirecting TXQ #%d to FIFO #%d\n", 71258f2cc57SLiad Kaufman queue, iwl_mvm_ac_to_tx_fifo[ac]); 71358f2cc57SLiad Kaufman 714cfbc6c4cSSara Sharon /* Stop the queue and wait for it to empty */ 715cfbc6c4cSSara Sharon txq->stopped = true; 716cfbc6c4cSSara Sharon 717a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(queue)); 71858f2cc57SLiad Kaufman if (ret) { 71958f2cc57SLiad Kaufman IWL_ERR(mvm, "Error draining queue %d before reconfig\n", 72058f2cc57SLiad Kaufman queue); 72158f2cc57SLiad Kaufman ret = -EIO; 72258f2cc57SLiad Kaufman goto out; 72358f2cc57SLiad Kaufman } 72458f2cc57SLiad Kaufman 72558f2cc57SLiad Kaufman /* Before redirecting the queue we need to de-activate it */ 72658f2cc57SLiad Kaufman iwl_trans_txq_disable(mvm->trans, queue, false); 72758f2cc57SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 72858f2cc57SLiad Kaufman if (ret) 72958f2cc57SLiad Kaufman IWL_ERR(mvm, "Failed SCD disable TXQ %d (ret=%d)\n", queue, 73058f2cc57SLiad Kaufman ret); 73158f2cc57SLiad Kaufman 73258f2cc57SLiad Kaufman /* Make sure the SCD wrptr is correctly set before reconfiguring */ 733ca3b9c6bSSara Sharon iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, wdg_timeout); 73458f2cc57SLiad Kaufman 735edbe961cSLiad Kaufman /* Update the TID "owner" of the queue */ 736edbe961cSLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 737edbe961cSLiad Kaufman 73858f2cc57SLiad Kaufman /* TODO: Work-around SCD bug when moving back by multiples of 0x40 */ 73958f2cc57SLiad Kaufman 74058f2cc57SLiad Kaufman /* Redirect to lower AC */ 74158f2cc57SLiad Kaufman iwl_mvm_reconfig_scd(mvm, queue, iwl_mvm_ac_to_tx_fifo[ac], 7420ec9257bSSara Sharon cmd.sta_id, tid, IWL_FRAME_LIMIT, ssn); 74358f2cc57SLiad Kaufman 74458f2cc57SLiad Kaufman /* Update AC marking of the queue */ 74558f2cc57SLiad Kaufman mvm->queue_info[queue].mac80211_ac = ac; 74658f2cc57SLiad Kaufman 74758f2cc57SLiad Kaufman /* 74858f2cc57SLiad Kaufman * Mark queue as shared in transport if shared 74958f2cc57SLiad Kaufman * Note this has to be done after queue enablement because enablement 75058f2cc57SLiad Kaufman * can also set this value, and there is no indication there to shared 75158f2cc57SLiad Kaufman * queues 75258f2cc57SLiad Kaufman */ 75358f2cc57SLiad Kaufman if (shared_queue) 75458f2cc57SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 75558f2cc57SLiad Kaufman 75658f2cc57SLiad Kaufman out: 757cfbc6c4cSSara Sharon /* Continue using the queue */ 758cfbc6c4cSSara Sharon txq->stopped = false; 75958f2cc57SLiad Kaufman 76058f2cc57SLiad Kaufman return ret; 76158f2cc57SLiad Kaufman } 76258f2cc57SLiad Kaufman 76399448a8cSJohannes Berg static int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 sta_id, 76499448a8cSJohannes Berg u8 minq, u8 maxq) 76599448a8cSJohannes Berg { 76699448a8cSJohannes Berg int i; 76799448a8cSJohannes Berg 768f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 76999448a8cSJohannes Berg 770e5b72e3bSJohannes Berg if (WARN(maxq >= mvm->trans->trans_cfg->base_params->num_of_queues, 771e5b72e3bSJohannes Berg "max queue %d >= num_of_queues (%d)", maxq, 772e5b72e3bSJohannes Berg mvm->trans->trans_cfg->base_params->num_of_queues)) 773e5b72e3bSJohannes Berg maxq = mvm->trans->trans_cfg->base_params->num_of_queues - 1; 774e5b72e3bSJohannes Berg 77599448a8cSJohannes Berg /* This should not be hit with new TX path */ 77699448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 77799448a8cSJohannes Berg return -ENOSPC; 77899448a8cSJohannes Berg 77999448a8cSJohannes Berg /* Start by looking for a free queue */ 78099448a8cSJohannes Berg for (i = minq; i <= maxq; i++) 7811c14089eSJohannes Berg if (mvm->queue_info[i].tid_bitmap == 0 && 78299448a8cSJohannes Berg mvm->queue_info[i].status == IWL_MVM_QUEUE_FREE) 78399448a8cSJohannes Berg return i; 78499448a8cSJohannes Berg 78599448a8cSJohannes Berg return -ENOSPC; 78699448a8cSJohannes Berg } 78799448a8cSJohannes Berg 78809369983SJohannes Berg static int iwl_mvm_get_queue_size(struct ieee80211_sta *sta) 78909369983SJohannes Berg { 79009369983SJohannes Berg /* this queue isn't used for traffic (cab_queue) */ 79109369983SJohannes Berg if (!sta) 79209369983SJohannes Berg return IWL_MGMT_QUEUE_SIZE; 79309369983SJohannes Berg 79409369983SJohannes Berg /* support for 1k ba size */ 79509369983SJohannes Berg if (sta->deflink.eht_cap.has_eht) 79609369983SJohannes Berg return IWL_DEFAULT_QUEUE_SIZE_EHT; 79709369983SJohannes Berg 79809369983SJohannes Berg /* support for 256 ba size */ 79909369983SJohannes Berg if (sta->deflink.he_cap.has_he) 80009369983SJohannes Berg return IWL_DEFAULT_QUEUE_SIZE_HE; 80109369983SJohannes Berg 80209369983SJohannes Berg return IWL_DEFAULT_QUEUE_SIZE; 80309369983SJohannes Berg } 80409369983SJohannes Berg 805006c152aSMiri Korenblit int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm, 80609369983SJohannes Berg struct ieee80211_sta *sta, 80799448a8cSJohannes Berg u8 sta_id, u8 tid, unsigned int timeout) 80899448a8cSJohannes Berg { 809d5399f11SMordechay Goodstein int queue, size; 81099448a8cSJohannes Berg 81199448a8cSJohannes Berg if (tid == IWL_MAX_TID_COUNT) { 81299448a8cSJohannes Berg tid = IWL_MGMT_TID; 813ff911dcaSShaul Triebitz size = max_t(u32, IWL_MGMT_QUEUE_SIZE, 814ff911dcaSShaul Triebitz mvm->trans->cfg->min_txq_size); 815d5399f11SMordechay Goodstein } else { 81609369983SJohannes Berg size = iwl_mvm_get_queue_size(sta); 817d5399f11SMordechay Goodstein } 818d5399f11SMordechay Goodstein 819d5399f11SMordechay Goodstein /* take the min with bc tbl entries allowed */ 820d5399f11SMordechay Goodstein size = min_t(u32, size, mvm->trans->txqs.bc_tbl_size / sizeof(u16)); 821d5399f11SMordechay Goodstein 822d5399f11SMordechay Goodstein /* size needs to be power of 2 values for calculating read/write pointers */ 823d5399f11SMordechay Goodstein size = rounddown_pow_of_two(size); 824d5399f11SMordechay Goodstein 82592f78d4bSJohannes Berg do { 826227f2597SJohannes Berg queue = iwl_trans_txq_alloc(mvm->trans, 0, BIT(sta_id), 82785b17a33SJohannes Berg tid, size, timeout); 82892f78d4bSJohannes Berg 82992f78d4bSJohannes Berg if (queue < 0) 83099448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 83192f78d4bSJohannes Berg "Failed allocating TXQ of size %d for sta %d tid %d, ret: %d\n", 83292f78d4bSJohannes Berg size, sta_id, tid, queue); 83392f78d4bSJohannes Berg size /= 2; 83492f78d4bSJohannes Berg } while (queue < 0 && size >= 16); 83592f78d4bSJohannes Berg 83692f78d4bSJohannes Berg if (queue < 0) 83799448a8cSJohannes Berg return queue; 83899448a8cSJohannes Berg 83999448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Enabling TXQ #%d for sta %d tid %d\n", 84099448a8cSJohannes Berg queue, sta_id, tid); 84199448a8cSJohannes Berg 84299448a8cSJohannes Berg return queue; 84399448a8cSJohannes Berg } 84499448a8cSJohannes Berg 845310181ecSSara Sharon static int iwl_mvm_sta_alloc_queue_tvqm(struct iwl_mvm *mvm, 846310181ecSSara Sharon struct ieee80211_sta *sta, u8 ac, 847310181ecSSara Sharon int tid) 848310181ecSSara Sharon { 849310181ecSSara Sharon struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 850cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 851cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 852310181ecSSara Sharon unsigned int wdg_timeout = 853310181ecSSara Sharon iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 854310181ecSSara Sharon int queue = -1; 855310181ecSSara Sharon 856310181ecSSara Sharon lockdep_assert_held(&mvm->mutex); 857310181ecSSara Sharon 858310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 859310181ecSSara Sharon "Allocating queue for sta %d on tid %d\n", 860310181ecSSara Sharon mvmsta->sta_id, tid); 86109369983SJohannes Berg queue = iwl_mvm_tvqm_enable_txq(mvm, sta, mvmsta->sta_id, 86209369983SJohannes Berg tid, wdg_timeout); 863310181ecSSara Sharon if (queue < 0) 864310181ecSSara Sharon return queue; 865310181ecSSara Sharon 866cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 867cfbc6c4cSSara Sharon mvm->tvqm_info[queue].txq_tid = tid; 868cfbc6c4cSSara Sharon mvm->tvqm_info[queue].sta_id = mvmsta->sta_id; 869cfbc6c4cSSara Sharon 870310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, "Allocated queue is %d\n", queue); 871310181ecSSara Sharon 872310181ecSSara Sharon spin_lock_bh(&mvmsta->lock); 873310181ecSSara Sharon mvmsta->tid_data[tid].txq_id = queue; 874310181ecSSara Sharon spin_unlock_bh(&mvmsta->lock); 875310181ecSSara Sharon 876310181ecSSara Sharon return 0; 877310181ecSSara Sharon } 878310181ecSSara Sharon 879cfbc6c4cSSara Sharon static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, 880cfbc6c4cSSara Sharon struct ieee80211_sta *sta, 881cfbc6c4cSSara Sharon int queue, u8 sta_id, u8 tid) 88299448a8cSJohannes Berg { 88399448a8cSJohannes Berg bool enable_queue = true; 88499448a8cSJohannes Berg 88599448a8cSJohannes Berg /* Make sure this TID isn't already enabled */ 88699448a8cSJohannes Berg if (mvm->queue_info[queue].tid_bitmap & BIT(tid)) { 88799448a8cSJohannes Berg IWL_ERR(mvm, "Trying to enable TXQ %d with existing TID %d\n", 88899448a8cSJohannes Berg queue, tid); 88999448a8cSJohannes Berg return false; 89099448a8cSJohannes Berg } 89199448a8cSJohannes Berg 89299448a8cSJohannes Berg /* Update mappings and refcounts */ 8931c14089eSJohannes Berg if (mvm->queue_info[queue].tid_bitmap) 89499448a8cSJohannes Berg enable_queue = false; 89599448a8cSJohannes Berg 89699448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap |= BIT(tid); 89799448a8cSJohannes Berg mvm->queue_info[queue].ra_sta_id = sta_id; 89899448a8cSJohannes Berg 89999448a8cSJohannes Berg if (enable_queue) { 90099448a8cSJohannes Berg if (tid != IWL_MAX_TID_COUNT) 90199448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = 90299448a8cSJohannes Berg tid_to_mac80211_ac[tid]; 90399448a8cSJohannes Berg else 90499448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = IEEE80211_AC_VO; 90599448a8cSJohannes Berg 90699448a8cSJohannes Berg mvm->queue_info[queue].txq_tid = tid; 90799448a8cSJohannes Berg } 90899448a8cSJohannes Berg 909cfbc6c4cSSara Sharon if (sta) { 910cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 911cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 912cfbc6c4cSSara Sharon 913cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 914cfbc6c4cSSara Sharon } 915cfbc6c4cSSara Sharon 91699448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 917cfbc6c4cSSara Sharon "Enabling TXQ #%d tids=0x%x\n", 918cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 91999448a8cSJohannes Berg 92099448a8cSJohannes Berg return enable_queue; 92199448a8cSJohannes Berg } 92299448a8cSJohannes Berg 923cfbc6c4cSSara Sharon static bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 924cfbc6c4cSSara Sharon int queue, u16 ssn, 92599448a8cSJohannes Berg const struct iwl_trans_txq_scd_cfg *cfg, 92699448a8cSJohannes Berg unsigned int wdg_timeout) 92799448a8cSJohannes Berg { 92899448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 92999448a8cSJohannes Berg .scd_queue = queue, 93099448a8cSJohannes Berg .action = SCD_CFG_ENABLE_QUEUE, 93199448a8cSJohannes Berg .window = cfg->frame_limit, 93299448a8cSJohannes Berg .sta_id = cfg->sta_id, 93399448a8cSJohannes Berg .ssn = cpu_to_le16(ssn), 93499448a8cSJohannes Berg .tx_fifo = cfg->fifo, 93599448a8cSJohannes Berg .aggregate = cfg->aggregate, 93699448a8cSJohannes Berg .tid = cfg->tid, 93799448a8cSJohannes Berg }; 93899448a8cSJohannes Berg bool inc_ssn; 93999448a8cSJohannes Berg 94099448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 94199448a8cSJohannes Berg return false; 94299448a8cSJohannes Berg 94399448a8cSJohannes Berg /* Send the enabling command if we need to */ 944cfbc6c4cSSara Sharon if (!iwl_mvm_update_txq_mapping(mvm, sta, queue, cfg->sta_id, cfg->tid)) 94599448a8cSJohannes Berg return false; 94699448a8cSJohannes Berg 94799448a8cSJohannes Berg inc_ssn = iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, 94899448a8cSJohannes Berg NULL, wdg_timeout); 94999448a8cSJohannes Berg if (inc_ssn) 95099448a8cSJohannes Berg le16_add_cpu(&cmd.ssn, 1); 95199448a8cSJohannes Berg 95299448a8cSJohannes Berg WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd), 95399448a8cSJohannes Berg "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo); 95499448a8cSJohannes Berg 95599448a8cSJohannes Berg return inc_ssn; 95699448a8cSJohannes Berg } 95799448a8cSJohannes Berg 958b3a87f11SJohannes Berg static void iwl_mvm_change_queue_tid(struct iwl_mvm *mvm, int queue) 95919aefa45SLiad Kaufman { 96019aefa45SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 96119aefa45SLiad Kaufman .scd_queue = queue, 96219aefa45SLiad Kaufman .action = SCD_CFG_UPDATE_QUEUE_TID, 96319aefa45SLiad Kaufman }; 96419aefa45SLiad Kaufman int tid; 96519aefa45SLiad Kaufman unsigned long tid_bitmap; 96619aefa45SLiad Kaufman int ret; 96719aefa45SLiad Kaufman 96819aefa45SLiad Kaufman lockdep_assert_held(&mvm->mutex); 96919aefa45SLiad Kaufman 970bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 971bb49701bSSara Sharon return; 972bb49701bSSara Sharon 97319aefa45SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 97419aefa45SLiad Kaufman 97519aefa45SLiad Kaufman if (WARN(!tid_bitmap, "TXQ %d has no tids assigned to it\n", queue)) 97619aefa45SLiad Kaufman return; 97719aefa45SLiad Kaufman 97819aefa45SLiad Kaufman /* Find any TID for queue */ 97919aefa45SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 98019aefa45SLiad Kaufman cmd.tid = tid; 98119aefa45SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 98219aefa45SLiad Kaufman 98319aefa45SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 984341ca402SLiad Kaufman if (ret) { 98519aefa45SLiad Kaufman IWL_ERR(mvm, "Failed to update owner of TXQ %d (ret=%d)\n", 98619aefa45SLiad Kaufman queue, ret); 987341ca402SLiad Kaufman return; 988341ca402SLiad Kaufman } 989341ca402SLiad Kaufman 990341ca402SLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 99119aefa45SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Changed TXQ %d ownership to tid %d\n", 99219aefa45SLiad Kaufman queue, tid); 99319aefa45SLiad Kaufman } 99419aefa45SLiad Kaufman 9959f9af3d7SLiad Kaufman static void iwl_mvm_unshare_queue(struct iwl_mvm *mvm, int queue) 9969f9af3d7SLiad Kaufman { 9979f9af3d7SLiad Kaufman struct ieee80211_sta *sta; 9989f9af3d7SLiad Kaufman struct iwl_mvm_sta *mvmsta; 999806911daSSharon Dvir u8 sta_id; 10009f9af3d7SLiad Kaufman int tid = -1; 10019f9af3d7SLiad Kaufman unsigned long tid_bitmap; 10029f9af3d7SLiad Kaufman unsigned int wdg_timeout; 10039f9af3d7SLiad Kaufman int ssn; 10049f9af3d7SLiad Kaufman int ret = true; 10059f9af3d7SLiad Kaufman 1006bb49701bSSara Sharon /* queue sharing is disabled on new TX path */ 1007bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1008bb49701bSSara Sharon return; 1009bb49701bSSara Sharon 10109f9af3d7SLiad Kaufman lockdep_assert_held(&mvm->mutex); 10119f9af3d7SLiad Kaufman 10129f9af3d7SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 10139f9af3d7SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 10149f9af3d7SLiad Kaufman 10159f9af3d7SLiad Kaufman /* Find TID for queue, and make sure it is the only one on the queue */ 10169f9af3d7SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 10179f9af3d7SLiad Kaufman if (tid_bitmap != BIT(tid)) { 10189f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to unshare q %d, active tids=0x%lx\n", 10199f9af3d7SLiad Kaufman queue, tid_bitmap); 10209f9af3d7SLiad Kaufman return; 10219f9af3d7SLiad Kaufman } 10229f9af3d7SLiad Kaufman 10239f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Unsharing TXQ %d, keeping tid %d\n", queue, 10249f9af3d7SLiad Kaufman tid); 10259f9af3d7SLiad Kaufman 10269f9af3d7SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 10279f9af3d7SLiad Kaufman lockdep_is_held(&mvm->mutex)); 10289f9af3d7SLiad Kaufman 10299f9af3d7SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 10309f9af3d7SLiad Kaufman return; 10319f9af3d7SLiad Kaufman 10329f9af3d7SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 10339f9af3d7SLiad Kaufman wdg_timeout = iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 10349f9af3d7SLiad Kaufman 10359f9af3d7SLiad Kaufman ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 10369f9af3d7SLiad Kaufman 1037cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, 10389f9af3d7SLiad Kaufman tid_to_mac80211_ac[tid], ssn, 1039cfbc6c4cSSara Sharon wdg_timeout, true, 1040cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 10419f9af3d7SLiad Kaufman if (ret) { 10429f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to redirect TXQ %d\n", queue); 10439f9af3d7SLiad Kaufman return; 10449f9af3d7SLiad Kaufman } 10459f9af3d7SLiad Kaufman 10469f9af3d7SLiad Kaufman /* If aggs should be turned back on - do it */ 10479f9af3d7SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) { 10489cd70e80SEmmanuel Grumbach struct iwl_mvm_add_sta_cmd cmd = {0}; 10499f9af3d7SLiad Kaufman 10509f9af3d7SLiad Kaufman mvmsta->tid_disable_agg &= ~BIT(tid); 10519f9af3d7SLiad Kaufman 10529f9af3d7SLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 10539f9af3d7SLiad Kaufman cmd.sta_id = mvmsta->sta_id; 10549f9af3d7SLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 10559f9af3d7SLiad Kaufman cmd.modify_mask = STA_MODIFY_TID_DISABLE_TX; 10569f9af3d7SLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 10579f9af3d7SLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 10589f9af3d7SLiad Kaufman 10599f9af3d7SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 10609f9af3d7SLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), &cmd); 10619f9af3d7SLiad Kaufman if (!ret) { 10629f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 10639f9af3d7SLiad Kaufman "TXQ #%d is now aggregated again\n", 10649f9af3d7SLiad Kaufman queue); 10659f9af3d7SLiad Kaufman 10669f9af3d7SLiad Kaufman /* Mark queue intenally as aggregating again */ 10679f9af3d7SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, false); 10689f9af3d7SLiad Kaufman } 10699f9af3d7SLiad Kaufman } 10709f9af3d7SLiad Kaufman 10719f9af3d7SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 10729f9af3d7SLiad Kaufman } 10739f9af3d7SLiad Kaufman 107499448a8cSJohannes Berg /* 107599448a8cSJohannes Berg * Remove inactive TIDs of a given queue. 107699448a8cSJohannes Berg * If all queue TIDs are inactive - mark the queue as inactive 107799448a8cSJohannes Berg * If only some the queue TIDs are inactive - unmap them from the queue 1078724fe771SJohannes Berg * 1079724fe771SJohannes Berg * Returns %true if all TIDs were removed and the queue could be reused. 108099448a8cSJohannes Berg */ 1081724fe771SJohannes Berg static bool iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm, 108299448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta, int queue, 108390d2d94cSJohannes Berg unsigned long tid_bitmap, 1084b3a87f11SJohannes Berg unsigned long *unshare_queues, 1085b3a87f11SJohannes Berg unsigned long *changetid_queues) 108699448a8cSJohannes Berg { 1087af3cdfd3SJakub Kicinski unsigned int tid; 108899448a8cSJohannes Berg 108999448a8cSJohannes Berg lockdep_assert_held(&mvmsta->lock); 1090f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 109199448a8cSJohannes Berg 109299448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1093724fe771SJohannes Berg return false; 109499448a8cSJohannes Berg 109599448a8cSJohannes Berg /* Go over all non-active TIDs, incl. IWL_MAX_TID_COUNT (for mgmt) */ 109699448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 109799448a8cSJohannes Berg /* If some TFDs are still queued - don't mark TID as inactive */ 109899448a8cSJohannes Berg if (iwl_mvm_tid_queued(mvm, &mvmsta->tid_data[tid])) 109999448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 110099448a8cSJohannes Berg 110199448a8cSJohannes Berg /* Don't mark as inactive any TID that has an active BA */ 110299448a8cSJohannes Berg if (mvmsta->tid_data[tid].state != IWL_AGG_OFF) 110399448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 110499448a8cSJohannes Berg } 110599448a8cSJohannes Berg 1106724fe771SJohannes Berg /* If all TIDs in the queue are inactive - return it can be reused */ 110799448a8cSJohannes Berg if (tid_bitmap == mvm->queue_info[queue].tid_bitmap) { 1108724fe771SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Queue %d is inactive\n", queue); 1109724fe771SJohannes Berg return true; 111099448a8cSJohannes Berg } 111199448a8cSJohannes Berg 111299448a8cSJohannes Berg /* 111399448a8cSJohannes Berg * If we are here, this is a shared queue and not all TIDs timed-out. 111499448a8cSJohannes Berg * Remove the ones that did. 111599448a8cSJohannes Berg */ 111699448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1117d4530f63SJohannes Berg u16 q_tid_bitmap; 111899448a8cSJohannes Berg 111999448a8cSJohannes Berg mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 112099448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 112199448a8cSJohannes Berg 1122d4530f63SJohannes Berg q_tid_bitmap = mvm->queue_info[queue].tid_bitmap; 1123b3a87f11SJohannes Berg 1124b3a87f11SJohannes Berg /* 1125b3a87f11SJohannes Berg * We need to take into account a situation in which a TXQ was 1126b3a87f11SJohannes Berg * allocated to TID x, and then turned shared by adding TIDs y 1127b3a87f11SJohannes Berg * and z. If TID x becomes inactive and is removed from the TXQ, 1128b3a87f11SJohannes Berg * ownership must be given to one of the remaining TIDs. 1129b3a87f11SJohannes Berg * This is mainly because if TID x continues - a new queue can't 1130b3a87f11SJohannes Berg * be allocated for it as long as it is an owner of another TXQ. 1131b3a87f11SJohannes Berg * 1132b3a87f11SJohannes Berg * Mark this queue in the right bitmap, we'll send the command 1133b3a87f11SJohannes Berg * to the firmware later. 1134b3a87f11SJohannes Berg */ 1135d4530f63SJohannes Berg if (!(q_tid_bitmap & BIT(mvm->queue_info[queue].txq_tid))) 1136b3a87f11SJohannes Berg set_bit(queue, changetid_queues); 1137b3a87f11SJohannes Berg 113899448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 113999448a8cSJohannes Berg "Removing inactive TID %d from shared Q:%d\n", 114099448a8cSJohannes Berg tid, queue); 114199448a8cSJohannes Berg } 114299448a8cSJohannes Berg 114399448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 114499448a8cSJohannes Berg "TXQ #%d left with tid bitmap 0x%x\n", queue, 114599448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap); 114699448a8cSJohannes Berg 114799448a8cSJohannes Berg /* 114899448a8cSJohannes Berg * There may be different TIDs with the same mac queues, so make 114999448a8cSJohannes Berg * sure all TIDs have existing corresponding mac queues enabled 115099448a8cSJohannes Berg */ 115199448a8cSJohannes Berg tid_bitmap = mvm->queue_info[queue].tid_bitmap; 115299448a8cSJohannes Berg 115399448a8cSJohannes Berg /* If the queue is marked as shared - "unshare" it */ 11541c14089eSJohannes Berg if (hweight16(mvm->queue_info[queue].tid_bitmap) == 1 && 115599448a8cSJohannes Berg mvm->queue_info[queue].status == IWL_MVM_QUEUE_SHARED) { 115699448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Marking Q:%d for reconfig\n", 115799448a8cSJohannes Berg queue); 115890d2d94cSJohannes Berg set_bit(queue, unshare_queues); 115999448a8cSJohannes Berg } 1160724fe771SJohannes Berg 1161724fe771SJohannes Berg return false; 116299448a8cSJohannes Berg } 116399448a8cSJohannes Berg 1164724fe771SJohannes Berg /* 1165724fe771SJohannes Berg * Check for inactivity - this includes checking if any queue 1166724fe771SJohannes Berg * can be unshared and finding one (and only one) that can be 1167724fe771SJohannes Berg * reused. 1168724fe771SJohannes Berg * This function is also invoked as a sort of clean-up task, 1169724fe771SJohannes Berg * in which case @alloc_for_sta is IWL_MVM_INVALID_STA. 1170724fe771SJohannes Berg * 1171724fe771SJohannes Berg * Returns the queue number, or -ENOSPC. 1172724fe771SJohannes Berg */ 1173724fe771SJohannes Berg static int iwl_mvm_inactivity_check(struct iwl_mvm *mvm, u8 alloc_for_sta) 117499448a8cSJohannes Berg { 117599448a8cSJohannes Berg unsigned long now = jiffies; 117690d2d94cSJohannes Berg unsigned long unshare_queues = 0; 1177b3a87f11SJohannes Berg unsigned long changetid_queues = 0; 1178724fe771SJohannes Berg int i, ret, free_queue = -ENOSPC; 1179cfbc6c4cSSara Sharon struct ieee80211_sta *queue_owner = NULL; 118099448a8cSJohannes Berg 1181df2a2245SJohannes Berg lockdep_assert_held(&mvm->mutex); 1182df2a2245SJohannes Berg 118399448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1184724fe771SJohannes Berg return -ENOSPC; 118599448a8cSJohannes Berg 118699448a8cSJohannes Berg rcu_read_lock(); 118799448a8cSJohannes Berg 1188459ab045SJohannes Berg /* we skip the CMD queue below by starting at 1 */ 1189459ab045SJohannes Berg BUILD_BUG_ON(IWL_MVM_DQA_CMD_QUEUE != 0); 1190459ab045SJohannes Berg 1191459ab045SJohannes Berg for (i = 1; i < IWL_MAX_HW_QUEUES; i++) { 119299448a8cSJohannes Berg struct ieee80211_sta *sta; 119399448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta; 119499448a8cSJohannes Berg u8 sta_id; 119599448a8cSJohannes Berg int tid; 119699448a8cSJohannes Berg unsigned long inactive_tid_bitmap = 0; 119799448a8cSJohannes Berg unsigned long queue_tid_bitmap; 119899448a8cSJohannes Berg 119999448a8cSJohannes Berg queue_tid_bitmap = mvm->queue_info[i].tid_bitmap; 1200459ab045SJohannes Berg if (!queue_tid_bitmap) 1201459ab045SJohannes Berg continue; 120299448a8cSJohannes Berg 120399448a8cSJohannes Berg /* If TXQ isn't in active use anyway - nothing to do here... */ 120499448a8cSJohannes Berg if (mvm->queue_info[i].status != IWL_MVM_QUEUE_READY && 1205459ab045SJohannes Berg mvm->queue_info[i].status != IWL_MVM_QUEUE_SHARED) 120699448a8cSJohannes Berg continue; 120799448a8cSJohannes Berg 120899448a8cSJohannes Berg /* Check to see if there are inactive TIDs on this queue */ 120999448a8cSJohannes Berg for_each_set_bit(tid, &queue_tid_bitmap, 121099448a8cSJohannes Berg IWL_MAX_TID_COUNT + 1) { 121199448a8cSJohannes Berg if (time_after(mvm->queue_info[i].last_frame_time[tid] + 121299448a8cSJohannes Berg IWL_MVM_DQA_QUEUE_TIMEOUT, now)) 121399448a8cSJohannes Berg continue; 121499448a8cSJohannes Berg 121599448a8cSJohannes Berg inactive_tid_bitmap |= BIT(tid); 121699448a8cSJohannes Berg } 121799448a8cSJohannes Berg 121899448a8cSJohannes Berg /* If all TIDs are active - finish check on this queue */ 121999448a8cSJohannes Berg if (!inactive_tid_bitmap) 122099448a8cSJohannes Berg continue; 122199448a8cSJohannes Berg 122299448a8cSJohannes Berg /* 122399448a8cSJohannes Berg * If we are here - the queue hadn't been served recently and is 122499448a8cSJohannes Berg * in use 122599448a8cSJohannes Berg */ 122699448a8cSJohannes Berg 122799448a8cSJohannes Berg sta_id = mvm->queue_info[i].ra_sta_id; 122899448a8cSJohannes Berg sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 122999448a8cSJohannes Berg 123099448a8cSJohannes Berg /* 123199448a8cSJohannes Berg * If the STA doesn't exist anymore, it isn't an error. It could 123299448a8cSJohannes Berg * be that it was removed since getting the queues, and in this 123399448a8cSJohannes Berg * case it should've inactivated its queues anyway. 123499448a8cSJohannes Berg */ 123599448a8cSJohannes Berg if (IS_ERR_OR_NULL(sta)) 123699448a8cSJohannes Berg continue; 123799448a8cSJohannes Berg 123899448a8cSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 123999448a8cSJohannes Berg 1240f3f240f9SJohannes Berg spin_lock_bh(&mvmsta->lock); 1241724fe771SJohannes Berg ret = iwl_mvm_remove_inactive_tids(mvm, mvmsta, i, 124290d2d94cSJohannes Berg inactive_tid_bitmap, 1243b3a87f11SJohannes Berg &unshare_queues, 1244b3a87f11SJohannes Berg &changetid_queues); 1245e6d419f9SJohannes Berg if (ret && free_queue < 0) { 1246cfbc6c4cSSara Sharon queue_owner = sta; 1247e6d419f9SJohannes Berg free_queue = i; 1248cfbc6c4cSSara Sharon } 1249459ab045SJohannes Berg /* only unlock sta lock - we still need the queue info lock */ 1250f3f240f9SJohannes Berg spin_unlock_bh(&mvmsta->lock); 125199448a8cSJohannes Berg } 125299448a8cSJohannes Berg 1253df2a2245SJohannes Berg 1254df2a2245SJohannes Berg /* Reconfigure queues requiring reconfiguation */ 125590d2d94cSJohannes Berg for_each_set_bit(i, &unshare_queues, IWL_MAX_HW_QUEUES) 125690d2d94cSJohannes Berg iwl_mvm_unshare_queue(mvm, i); 1257b3a87f11SJohannes Berg for_each_set_bit(i, &changetid_queues, IWL_MAX_HW_QUEUES) 1258b3a87f11SJohannes Berg iwl_mvm_change_queue_tid(mvm, i); 1259724fe771SJohannes Berg 1260fbb1461aSJohannes Berg rcu_read_unlock(); 1261fbb1461aSJohannes Berg 1262724fe771SJohannes Berg if (free_queue >= 0 && alloc_for_sta != IWL_MVM_INVALID_STA) { 1263cfbc6c4cSSara Sharon ret = iwl_mvm_free_inactive_queue(mvm, free_queue, queue_owner, 1264724fe771SJohannes Berg alloc_for_sta); 1265fbb1461aSJohannes Berg if (ret) 1266724fe771SJohannes Berg return ret; 1267724fe771SJohannes Berg } 1268724fe771SJohannes Berg 1269724fe771SJohannes Berg return free_queue; 127099448a8cSJohannes Berg } 127199448a8cSJohannes Berg 1272c20e08b0SJohannes Berg static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm, 1273cfbc6c4cSSara Sharon struct ieee80211_sta *sta, u8 ac, int tid) 1274c20e08b0SJohannes Berg { 1275c20e08b0SJohannes Berg struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1276c20e08b0SJohannes Berg struct iwl_trans_txq_scd_cfg cfg = { 1277c20e08b0SJohannes Berg .fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac), 1278c20e08b0SJohannes Berg .sta_id = mvmsta->sta_id, 1279c20e08b0SJohannes Berg .tid = tid, 1280c20e08b0SJohannes Berg .frame_limit = IWL_FRAME_LIMIT, 1281c20e08b0SJohannes Berg }; 1282c20e08b0SJohannes Berg unsigned int wdg_timeout = 1283c20e08b0SJohannes Berg iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 1284c20e08b0SJohannes Berg int queue = -1; 1285c6ce1c74SJohannes Berg u16 queue_tmp; 1286c20e08b0SJohannes Berg unsigned long disable_agg_tids = 0; 1287c20e08b0SJohannes Berg enum iwl_mvm_agg_state queue_state; 1288c20e08b0SJohannes Berg bool shared_queue = false, inc_ssn; 1289c20e08b0SJohannes Berg int ssn; 1290c20e08b0SJohannes Berg unsigned long tfd_queue_mask; 1291c20e08b0SJohannes Berg int ret; 1292c20e08b0SJohannes Berg 1293c20e08b0SJohannes Berg lockdep_assert_held(&mvm->mutex); 1294c20e08b0SJohannes Berg 1295c20e08b0SJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1296c20e08b0SJohannes Berg return iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 1297c20e08b0SJohannes Berg 1298c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1299c20e08b0SJohannes Berg tfd_queue_mask = mvmsta->tfd_queue_msk; 130035739348SSara Sharon ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 1301c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1302c20e08b0SJohannes Berg 1303cfbc6c4cSSara Sharon if (tid == IWL_MAX_TID_COUNT) { 1304c20e08b0SJohannes Berg queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 1305c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_MGMT_QUEUE, 1306c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_MGMT_QUEUE); 1307c20e08b0SJohannes Berg if (queue >= IWL_MVM_DQA_MIN_MGMT_QUEUE) 1308c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Found free MGMT queue #%d\n", 1309c20e08b0SJohannes Berg queue); 1310c20e08b0SJohannes Berg 1311c20e08b0SJohannes Berg /* If no such queue is found, we'll use a DATA queue instead */ 1312c20e08b0SJohannes Berg } 1313c20e08b0SJohannes Berg 1314c20e08b0SJohannes Berg if ((queue < 0 && mvmsta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) && 1315c20e08b0SJohannes Berg (mvm->queue_info[mvmsta->reserved_queue].status == 1316724fe771SJohannes Berg IWL_MVM_QUEUE_RESERVED)) { 1317c20e08b0SJohannes Berg queue = mvmsta->reserved_queue; 1318c20e08b0SJohannes Berg mvm->queue_info[queue].reserved = true; 1319c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Using reserved queue #%d\n", queue); 1320c20e08b0SJohannes Berg } 1321c20e08b0SJohannes Berg 1322c20e08b0SJohannes Berg if (queue < 0) 1323c20e08b0SJohannes Berg queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 1324c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 1325c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 1326724fe771SJohannes Berg if (queue < 0) { 1327724fe771SJohannes Berg /* try harder - perhaps kill an inactive queue */ 1328724fe771SJohannes Berg queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id); 1329c20e08b0SJohannes Berg } 1330c20e08b0SJohannes Berg 1331c20e08b0SJohannes Berg /* No free queue - we'll have to share */ 1332c20e08b0SJohannes Berg if (queue <= 0) { 1333c20e08b0SJohannes Berg queue = iwl_mvm_get_shared_queue(mvm, tfd_queue_mask, ac); 1334c20e08b0SJohannes Berg if (queue > 0) { 1335c20e08b0SJohannes Berg shared_queue = true; 1336c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_SHARED; 1337c20e08b0SJohannes Berg } 1338c20e08b0SJohannes Berg } 1339c20e08b0SJohannes Berg 1340c20e08b0SJohannes Berg /* 1341c20e08b0SJohannes Berg * Mark TXQ as ready, even though it hasn't been fully configured yet, 1342c20e08b0SJohannes Berg * to make sure no one else takes it. 1343c20e08b0SJohannes Berg * This will allow avoiding re-acquiring the lock at the end of the 1344c20e08b0SJohannes Berg * configuration. On error we'll mark it back as free. 1345c20e08b0SJohannes Berg */ 1346c20e08b0SJohannes Berg if (queue > 0 && !shared_queue) 1347c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 1348c20e08b0SJohannes Berg 1349c20e08b0SJohannes Berg /* This shouldn't happen - out of queues */ 1350c20e08b0SJohannes Berg if (WARN_ON(queue <= 0)) { 1351c20e08b0SJohannes Berg IWL_ERR(mvm, "No available queues for tid %d on sta_id %d\n", 1352c20e08b0SJohannes Berg tid, cfg.sta_id); 1353c20e08b0SJohannes Berg return queue; 1354c20e08b0SJohannes Berg } 1355c20e08b0SJohannes Berg 1356c20e08b0SJohannes Berg /* 1357c20e08b0SJohannes Berg * Actual en/disablement of aggregations is through the ADD_STA HCMD, 1358c20e08b0SJohannes Berg * but for configuring the SCD to send A-MPDUs we need to mark the queue 1359c20e08b0SJohannes Berg * as aggregatable. 1360c20e08b0SJohannes Berg * Mark all DATA queues as allowing to be aggregated at some point 1361c20e08b0SJohannes Berg */ 1362c20e08b0SJohannes Berg cfg.aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1363c20e08b0SJohannes Berg queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE); 1364c20e08b0SJohannes Berg 1365c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 1366c20e08b0SJohannes Berg "Allocating %squeue #%d to sta %d on tid %d\n", 1367c20e08b0SJohannes Berg shared_queue ? "shared " : "", queue, 1368c20e08b0SJohannes Berg mvmsta->sta_id, tid); 1369c20e08b0SJohannes Berg 1370c20e08b0SJohannes Berg if (shared_queue) { 1371c20e08b0SJohannes Berg /* Disable any open aggs on this queue */ 1372c20e08b0SJohannes Berg disable_agg_tids = iwl_mvm_get_queue_agg_tids(mvm, queue); 1373c20e08b0SJohannes Berg 1374c20e08b0SJohannes Berg if (disable_agg_tids) { 1375c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Disabling aggs on queue %d\n", 1376c20e08b0SJohannes Berg queue); 1377c20e08b0SJohannes Berg iwl_mvm_invalidate_sta_queue(mvm, queue, 1378c20e08b0SJohannes Berg disable_agg_tids, false); 1379c20e08b0SJohannes Berg } 1380c20e08b0SJohannes Berg } 1381c20e08b0SJohannes Berg 1382cfbc6c4cSSara Sharon inc_ssn = iwl_mvm_enable_txq(mvm, sta, queue, ssn, &cfg, wdg_timeout); 1383c20e08b0SJohannes Berg 1384c20e08b0SJohannes Berg /* 1385c20e08b0SJohannes Berg * Mark queue as shared in transport if shared 1386c20e08b0SJohannes Berg * Note this has to be done after queue enablement because enablement 1387c20e08b0SJohannes Berg * can also set this value, and there is no indication there to shared 1388c20e08b0SJohannes Berg * queues 1389c20e08b0SJohannes Berg */ 1390c20e08b0SJohannes Berg if (shared_queue) 1391c20e08b0SJohannes Berg iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 1392c20e08b0SJohannes Berg 1393c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1394c20e08b0SJohannes Berg /* 1395c20e08b0SJohannes Berg * This looks racy, but it is not. We have only one packet for 1396c20e08b0SJohannes Berg * this ra/tid in our Tx path since we stop the Qdisc when we 1397c20e08b0SJohannes Berg * need to allocate a new TFD queue. 1398c20e08b0SJohannes Berg */ 139935739348SSara Sharon if (inc_ssn) { 1400c20e08b0SJohannes Berg mvmsta->tid_data[tid].seq_number += 0x10; 140135739348SSara Sharon ssn = (ssn + 1) & IEEE80211_SCTL_SEQ; 140235739348SSara Sharon } 1403c20e08b0SJohannes Berg mvmsta->tid_data[tid].txq_id = queue; 1404c20e08b0SJohannes Berg mvmsta->tfd_queue_msk |= BIT(queue); 1405c20e08b0SJohannes Berg queue_state = mvmsta->tid_data[tid].state; 1406c20e08b0SJohannes Berg 1407c20e08b0SJohannes Berg if (mvmsta->reserved_queue == queue) 1408c20e08b0SJohannes Berg mvmsta->reserved_queue = IEEE80211_INVAL_HW_QUEUE; 1409c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1410c20e08b0SJohannes Berg 1411c20e08b0SJohannes Berg if (!shared_queue) { 1412c20e08b0SJohannes Berg ret = iwl_mvm_sta_send_to_fw(mvm, sta, true, STA_MODIFY_QUEUES); 1413c20e08b0SJohannes Berg if (ret) 1414c20e08b0SJohannes Berg goto out_err; 1415c20e08b0SJohannes Berg 1416c20e08b0SJohannes Berg /* If we need to re-enable aggregations... */ 1417c20e08b0SJohannes Berg if (queue_state == IWL_AGG_ON) { 1418c20e08b0SJohannes Berg ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 1419c20e08b0SJohannes Berg if (ret) 1420c20e08b0SJohannes Berg goto out_err; 1421c20e08b0SJohannes Berg } 1422c20e08b0SJohannes Berg } else { 1423c20e08b0SJohannes Berg /* Redirect queue, if needed */ 1424cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, ac, ssn, 1425cfbc6c4cSSara Sharon wdg_timeout, false, 1426cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 1427c20e08b0SJohannes Berg if (ret) 1428c20e08b0SJohannes Berg goto out_err; 1429c20e08b0SJohannes Berg } 1430c20e08b0SJohannes Berg 1431c20e08b0SJohannes Berg return 0; 1432c20e08b0SJohannes Berg 1433c20e08b0SJohannes Berg out_err: 1434c6ce1c74SJohannes Berg queue_tmp = queue; 1435c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, sta, mvmsta->sta_id, &queue_tmp, tid); 1436c20e08b0SJohannes Berg 1437c20e08b0SJohannes Berg return ret; 1438c20e08b0SJohannes Berg } 1439c20e08b0SJohannes Berg 144024afba76SLiad Kaufman void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk) 144124afba76SLiad Kaufman { 144224afba76SLiad Kaufman struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, 144324afba76SLiad Kaufman add_stream_wk); 144424afba76SLiad Kaufman 144524afba76SLiad Kaufman mutex_lock(&mvm->mutex); 144624afba76SLiad Kaufman 1447724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 14489f9af3d7SLiad Kaufman 1449cfbc6c4cSSara Sharon while (!list_empty(&mvm->add_stream_txqs)) { 1450cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq; 1451cfbc6c4cSSara Sharon struct ieee80211_txq *txq; 1452cfbc6c4cSSara Sharon u8 tid; 145324afba76SLiad Kaufman 1454cfbc6c4cSSara Sharon mvmtxq = list_first_entry(&mvm->add_stream_txqs, 1455cfbc6c4cSSara Sharon struct iwl_mvm_txq, list); 145624afba76SLiad Kaufman 1457cfbc6c4cSSara Sharon txq = container_of((void *)mvmtxq, struct ieee80211_txq, 1458cfbc6c4cSSara Sharon drv_priv); 1459cfbc6c4cSSara Sharon tid = txq->tid; 1460cfbc6c4cSSara Sharon if (tid == IEEE80211_NUM_TIDS) 1461cfbc6c4cSSara Sharon tid = IWL_MAX_TID_COUNT; 1462cfbc6c4cSSara Sharon 14633d1d87abSJohannes Berg /* 14643d1d87abSJohannes Berg * We can't really do much here, but if this fails we can't 14653d1d87abSJohannes Berg * transmit anyway - so just don't transmit the frame etc. 14663d1d87abSJohannes Berg * and let them back up ... we've tried our best to allocate 14673d1d87abSJohannes Berg * a queue in the function itself. 14683d1d87abSJohannes Berg */ 14693d1d87abSJohannes Berg if (iwl_mvm_sta_alloc_queue(mvm, txq->sta, txq->ac, tid)) { 14703d1d87abSJohannes Berg list_del_init(&mvmtxq->list); 14713d1d87abSJohannes Berg continue; 14723d1d87abSJohannes Berg } 14733d1d87abSJohannes Berg 1474cfbc6c4cSSara Sharon list_del_init(&mvmtxq->list); 1475f5ae2f93SJohannes Berg local_bh_disable(); 1476cfbc6c4cSSara Sharon iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1477f5ae2f93SJohannes Berg local_bh_enable(); 147824afba76SLiad Kaufman } 147924afba76SLiad Kaufman 148024afba76SLiad Kaufman mutex_unlock(&mvm->mutex); 148124afba76SLiad Kaufman } 148224afba76SLiad Kaufman 148324afba76SLiad Kaufman static int iwl_mvm_reserve_sta_stream(struct iwl_mvm *mvm, 1484d5216a28SLiad Kaufman struct ieee80211_sta *sta, 1485d5216a28SLiad Kaufman enum nl80211_iftype vif_type) 148624afba76SLiad Kaufman { 148724afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 148824afba76SLiad Kaufman int queue; 148924afba76SLiad Kaufman 1490396952eeSSara Sharon /* queue reserving is disabled on new TX path */ 1491396952eeSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1492396952eeSSara Sharon return 0; 1493396952eeSSara Sharon 1494724fe771SJohannes Berg /* run the general cleanup/unsharing of queues */ 1495724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 14969794c64fSLiad Kaufman 149724afba76SLiad Kaufman /* Make sure we have free resources for this STA */ 1498d5216a28SLiad Kaufman if (vif_type == NL80211_IFTYPE_STATION && !sta->tdls && 14991c14089eSJohannes Berg !mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].tid_bitmap && 1500cf961e16SLiad Kaufman (mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].status == 1501cf961e16SLiad Kaufman IWL_MVM_QUEUE_FREE)) 1502d5216a28SLiad Kaufman queue = IWL_MVM_DQA_BSS_CLIENT_QUEUE; 1503d5216a28SLiad Kaufman else 15049794c64fSLiad Kaufman queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 15059794c64fSLiad Kaufman IWL_MVM_DQA_MIN_DATA_QUEUE, 150624afba76SLiad Kaufman IWL_MVM_DQA_MAX_DATA_QUEUE); 150724afba76SLiad Kaufman if (queue < 0) { 1508724fe771SJohannes Berg /* try again - this time kick out a queue if needed */ 1509724fe771SJohannes Berg queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id); 1510724fe771SJohannes Berg if (queue < 0) { 151124afba76SLiad Kaufman IWL_ERR(mvm, "No available queues for new station\n"); 151224afba76SLiad Kaufman return -ENOSPC; 1513724fe771SJohannes Berg } 151424afba76SLiad Kaufman } 1515cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_RESERVED; 151624afba76SLiad Kaufman 151724afba76SLiad Kaufman mvmsta->reserved_queue = queue; 151824afba76SLiad Kaufman 151924afba76SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Reserving data queue #%d for sta_id %d\n", 152024afba76SLiad Kaufman queue, mvmsta->sta_id); 152124afba76SLiad Kaufman 152224afba76SLiad Kaufman return 0; 152324afba76SLiad Kaufman } 152424afba76SLiad Kaufman 15258d98ae6eSLiad Kaufman /* 15268d98ae6eSLiad Kaufman * In DQA mode, after a HW restart the queues should be allocated as before, in 15278d98ae6eSLiad Kaufman * order to avoid race conditions when there are shared queues. This function 15288d98ae6eSLiad Kaufman * does the re-mapping and queue allocation. 15298d98ae6eSLiad Kaufman * 15308d98ae6eSLiad Kaufman * Note that re-enabling aggregations isn't done in this function. 15318d98ae6eSLiad Kaufman */ 15328d98ae6eSLiad Kaufman static void iwl_mvm_realloc_queues_after_restart(struct iwl_mvm *mvm, 1533cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 15348d98ae6eSLiad Kaufman { 1535cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1536cfbc6c4cSSara Sharon unsigned int wdg = 15378d98ae6eSLiad Kaufman iwl_mvm_get_wd_timeout(mvm, mvm_sta->vif, false, false); 15388d98ae6eSLiad Kaufman int i; 15398d98ae6eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 15408d98ae6eSLiad Kaufman .sta_id = mvm_sta->sta_id, 15418d98ae6eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 15428d98ae6eSLiad Kaufman }; 15438d98ae6eSLiad Kaufman 154403c902bfSJohannes Berg /* Make sure reserved queue is still marked as such (if allocated) */ 154503c902bfSJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) 15468d98ae6eSLiad Kaufman mvm->queue_info[mvm_sta->reserved_queue].status = 15478d98ae6eSLiad Kaufman IWL_MVM_QUEUE_RESERVED; 15488d98ae6eSLiad Kaufman 15498d98ae6eSLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 15508d98ae6eSLiad Kaufman struct iwl_mvm_tid_data *tid_data = &mvm_sta->tid_data[i]; 15518d98ae6eSLiad Kaufman int txq_id = tid_data->txq_id; 15528d98ae6eSLiad Kaufman int ac; 15538d98ae6eSLiad Kaufman 15546862fceeSSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 15558d98ae6eSLiad Kaufman continue; 15568d98ae6eSLiad Kaufman 15578d98ae6eSLiad Kaufman ac = tid_to_mac80211_ac[i]; 15588d98ae6eSLiad Kaufman 1559310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1560310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 1561310181ecSSara Sharon "Re-mapping sta %d tid %d\n", 1562310181ecSSara Sharon mvm_sta->sta_id, i); 156309369983SJohannes Berg txq_id = iwl_mvm_tvqm_enable_txq(mvm, sta, 156409369983SJohannes Berg mvm_sta->sta_id, 1565cfbc6c4cSSara Sharon i, wdg); 156691cf5dedSJohannes Berg /* 156791cf5dedSJohannes Berg * on failures, just set it to IWL_MVM_INVALID_QUEUE 156891cf5dedSJohannes Berg * to try again later, we have no other good way of 156991cf5dedSJohannes Berg * failing here 157091cf5dedSJohannes Berg */ 157191cf5dedSJohannes Berg if (txq_id < 0) 157291cf5dedSJohannes Berg txq_id = IWL_MVM_INVALID_QUEUE; 1573310181ecSSara Sharon tid_data->txq_id = txq_id; 15745d39051aSLiad Kaufman 15755d39051aSLiad Kaufman /* 15765d39051aSLiad Kaufman * Since we don't set the seq number after reset, and HW 15775d39051aSLiad Kaufman * sets it now, FW reset will cause the seq num to start 15785d39051aSLiad Kaufman * at 0 again, so driver will need to update it 15795d39051aSLiad Kaufman * internally as well, so it keeps in sync with real val 15805d39051aSLiad Kaufman */ 15815d39051aSLiad Kaufman tid_data->seq_number = 0; 1582310181ecSSara Sharon } else { 1583310181ecSSara Sharon u16 seq = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 1584310181ecSSara Sharon 15858d98ae6eSLiad Kaufman cfg.tid = i; 1586cf6c6ea3SEmmanuel Grumbach cfg.fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac); 15878d98ae6eSLiad Kaufman cfg.aggregate = (txq_id >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1588310181ecSSara Sharon txq_id == 1589310181ecSSara Sharon IWL_MVM_DQA_BSS_CLIENT_QUEUE); 15908d98ae6eSLiad Kaufman 15918d98ae6eSLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 15928d98ae6eSLiad Kaufman "Re-mapping sta %d tid %d to queue %d\n", 15938d98ae6eSLiad Kaufman mvm_sta->sta_id, i, 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 1651*69aef848SMiri Korenblit /* Initialize driver data of a new sta */ 1652*69aef848SMiri Korenblit static int iwl_mvm_sta_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1653*69aef848SMiri 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; 1658*69aef848SMiri Korenblit int i, ret = 0; 1659e705c121SKalle Valo 1660e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1661e705c121SKalle Valo 1662e705c121SKalle Valo mvm_sta->sta_id = sta_id; 1663e705c121SKalle Valo mvm_sta->mac_id_n_color = FW_CMD_ID_AND_COLOR(mvmvif->id, 1664e705c121SKalle Valo mvmvif->color); 1665e705c121SKalle Valo mvm_sta->vif = vif; 1666286ca8ebSLuca Coelho if (!mvm->trans->trans_cfg->gen2) 1667e705c121SKalle Valo mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_DEF; 1668a58bb468SLiad Kaufman else 1669a58bb468SLiad Kaufman mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF; 1670e705c121SKalle Valo mvm_sta->tt_tx_protection = false; 1671*69aef848SMiri Korenblit mvm_sta->sta_type = sta_type; 1672e705c121SKalle Valo 1673e705c121SKalle Valo mvm_sta->tid_disable_agg = 0xffff; /* No aggs at first */ 1674e705c121SKalle Valo 167524afba76SLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 167624afba76SLiad Kaufman /* 167724afba76SLiad Kaufman * Mark all queues for this STA as unallocated and defer TX 167824afba76SLiad Kaufman * frames until the queue is allocated 167924afba76SLiad Kaufman */ 16806862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 1681e705c121SKalle Valo } 1682cfbc6c4cSSara Sharon 1683cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1684cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1685cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1686cfbc6c4cSSara Sharon 1687cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 1688cfbc6c4cSSara Sharon INIT_LIST_HEAD(&mvmtxq->list); 1689fba8248eSSara Sharon atomic_set(&mvmtxq->tx_request, 0); 1690cfbc6c4cSSara Sharon } 1691cfbc6c4cSSara Sharon 1692*69aef848SMiri Korenblit if (iwl_mvm_has_new_rx_api(mvm)) { 169392c4dca6SJohannes Berg int q; 169492c4dca6SJohannes Berg 1695a571f5f6SSara Sharon dup_data = kcalloc(mvm->trans->num_rx_queues, 169692c4dca6SJohannes Berg sizeof(*dup_data), GFP_KERNEL); 1697a571f5f6SSara Sharon if (!dup_data) 1698a571f5f6SSara Sharon return -ENOMEM; 169992c4dca6SJohannes Berg /* 170092c4dca6SJohannes Berg * Initialize all the last_seq values to 0xffff which can never 170192c4dca6SJohannes Berg * compare equal to the frame's seq_ctrl in the check in 170292c4dca6SJohannes Berg * iwl_mvm_is_dup() since the lower 4 bits are the fragment 170392c4dca6SJohannes Berg * number and fragmented packets don't reach that function. 170492c4dca6SJohannes Berg * 170592c4dca6SJohannes Berg * This thus allows receiving a packet with seqno 0 and the 170692c4dca6SJohannes Berg * retry bit set as the very first packet on a new TID. 170792c4dca6SJohannes Berg */ 170892c4dca6SJohannes Berg for (q = 0; q < mvm->trans->num_rx_queues; q++) 170992c4dca6SJohannes Berg memset(dup_data[q].last_seq, 0xff, 171092c4dca6SJohannes Berg sizeof(dup_data[q].last_seq)); 1711a571f5f6SSara Sharon mvm_sta->dup_data = dup_data; 1712a571f5f6SSara Sharon } 1713a571f5f6SSara Sharon 1714c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 1715d5216a28SLiad Kaufman ret = iwl_mvm_reserve_sta_stream(mvm, sta, 1716d5216a28SLiad Kaufman ieee80211_vif_type_p2p(vif)); 171724afba76SLiad Kaufman if (ret) 1718*69aef848SMiri Korenblit return ret; 171924afba76SLiad Kaufman } 172024afba76SLiad Kaufman 17219f66a397SGregory Greenman /* 17229f66a397SGregory Greenman * if rs is registered with mac80211, then "add station" will be handled 17239f66a397SGregory Greenman * via the corresponding ops, otherwise need to notify rate scaling here 17249f66a397SGregory Greenman */ 17254243edb4SEmmanuel Grumbach if (iwl_mvm_has_tlc_offload(mvm)) 17269f66a397SGregory Greenman iwl_mvm_rs_add_sta(mvm, mvm_sta); 17270f8084cdSMordechay Goodstein else 1728f5d88fa3SGregory Greenman spin_lock_init(&mvm_sta->lq_sta.rs_drv.pers.lock); 17299f66a397SGregory Greenman 17300dde2440SAvraham Stern iwl_mvm_toggle_tx_ant(mvm, &mvm_sta->tx_ant); 17310dde2440SAvraham Stern 1732*69aef848SMiri Korenblit return 0; 1733*69aef848SMiri Korenblit } 1734*69aef848SMiri Korenblit 1735*69aef848SMiri Korenblit int iwl_mvm_add_sta(struct iwl_mvm *mvm, 1736*69aef848SMiri Korenblit struct ieee80211_vif *vif, 1737*69aef848SMiri Korenblit struct ieee80211_sta *sta) 1738*69aef848SMiri Korenblit { 1739*69aef848SMiri Korenblit struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1740*69aef848SMiri Korenblit struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1741*69aef848SMiri Korenblit int ret, sta_id; 1742*69aef848SMiri Korenblit bool sta_update = false; 1743*69aef848SMiri Korenblit unsigned int sta_flags = 0; 1744*69aef848SMiri Korenblit 1745*69aef848SMiri Korenblit lockdep_assert_held(&mvm->mutex); 1746*69aef848SMiri Korenblit 1747*69aef848SMiri Korenblit if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1748*69aef848SMiri Korenblit sta_id = iwl_mvm_find_free_sta_id(mvm, 1749*69aef848SMiri Korenblit ieee80211_vif_type_p2p(vif)); 1750*69aef848SMiri Korenblit else 1751*69aef848SMiri Korenblit sta_id = mvm_sta->sta_id; 1752*69aef848SMiri Korenblit 1753*69aef848SMiri Korenblit if (sta_id == IWL_MVM_INVALID_STA) 1754*69aef848SMiri Korenblit return -ENOSPC; 1755*69aef848SMiri Korenblit 1756*69aef848SMiri Korenblit spin_lock_init(&mvm_sta->lock); 1757*69aef848SMiri Korenblit 1758*69aef848SMiri Korenblit /* if this is a HW restart re-alloc existing queues */ 1759*69aef848SMiri Korenblit if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1760*69aef848SMiri Korenblit struct iwl_mvm_int_sta tmp_sta = { 1761*69aef848SMiri Korenblit .sta_id = sta_id, 1762*69aef848SMiri Korenblit .type = mvm_sta->sta_type, 1763*69aef848SMiri Korenblit }; 1764*69aef848SMiri Korenblit 1765*69aef848SMiri Korenblit /* First add an empty station since allocating 1766*69aef848SMiri Korenblit * a queue requires a valid station 1767*69aef848SMiri Korenblit */ 1768*69aef848SMiri Korenblit ret = iwl_mvm_add_int_sta_common(mvm, &tmp_sta, sta->addr, 1769*69aef848SMiri Korenblit mvmvif->id, mvmvif->color); 1770*69aef848SMiri Korenblit if (ret) 1771*69aef848SMiri Korenblit goto err; 1772*69aef848SMiri Korenblit 1773*69aef848SMiri Korenblit iwl_mvm_realloc_queues_after_restart(mvm, sta); 1774*69aef848SMiri Korenblit sta_update = true; 1775*69aef848SMiri Korenblit sta_flags = iwl_mvm_has_new_tx_api(mvm) ? 0 : STA_MODIFY_QUEUES; 1776*69aef848SMiri Korenblit goto update_fw; 1777*69aef848SMiri Korenblit } 1778*69aef848SMiri Korenblit 1779*69aef848SMiri Korenblit ret = iwl_mvm_sta_init(mvm, vif, sta, sta_id, 1780*69aef848SMiri Korenblit sta->tdls ? IWL_STA_TDLS_LINK : IWL_STA_LINK); 1781*69aef848SMiri Korenblit 17828d98ae6eSLiad Kaufman update_fw: 1783732d06e9SShaul Triebitz ret = iwl_mvm_sta_send_to_fw(mvm, sta, sta_update, sta_flags); 1784e705c121SKalle Valo if (ret) 1785e705c121SKalle Valo goto err; 1786e705c121SKalle Valo 1787e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) { 1788e705c121SKalle Valo if (!sta->tdls) { 17890ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id != IWL_MVM_INVALID_STA); 1790e705c121SKalle Valo mvmvif->ap_sta_id = sta_id; 1791e705c121SKalle Valo } else { 17920ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id == IWL_MVM_INVALID_STA); 1793e705c121SKalle Valo } 1794e705c121SKalle Valo } 1795e705c121SKalle Valo 1796c7eca79dSAvraham Stern if (!sta->tdls) 1797c7eca79dSAvraham Stern iwl_mvm_time_sync_config(mvm, sta->addr, 1798c7eca79dSAvraham Stern IWL_TIME_SYNC_PROTOCOL_TM | 1799c7eca79dSAvraham Stern IWL_TIME_SYNC_PROTOCOL_FTM); 1800c7eca79dSAvraham Stern 1801e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], sta); 1802e705c121SKalle Valo 1803e705c121SKalle Valo return 0; 1804e705c121SKalle Valo 1805e705c121SKalle Valo err: 1806e705c121SKalle Valo return ret; 1807e705c121SKalle Valo } 1808e705c121SKalle Valo 1809e705c121SKalle Valo int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, 1810e705c121SKalle Valo bool drain) 1811e705c121SKalle Valo { 1812e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 1813e705c121SKalle Valo int ret; 1814e705c121SKalle Valo u32 status; 1815e705c121SKalle Valo 1816e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1817e705c121SKalle Valo 1818e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 1819e705c121SKalle Valo cmd.sta_id = mvmsta->sta_id; 1820e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 1821e705c121SKalle Valo cmd.station_flags = drain ? cpu_to_le32(STA_FLG_DRAIN_FLOW) : 0; 1822e705c121SKalle Valo cmd.station_flags_msk = cpu_to_le32(STA_FLG_DRAIN_FLOW); 1823e705c121SKalle Valo 1824e705c121SKalle Valo status = ADD_STA_SUCCESS; 1825854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1826854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 1827e705c121SKalle Valo &cmd, &status); 1828e705c121SKalle Valo if (ret) 1829e705c121SKalle Valo return ret; 1830e705c121SKalle Valo 1831837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 1832e705c121SKalle Valo case ADD_STA_SUCCESS: 1833e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "Frames for staid %d will drained in fw\n", 1834e705c121SKalle Valo mvmsta->sta_id); 1835e705c121SKalle Valo break; 1836e705c121SKalle Valo default: 1837e705c121SKalle Valo ret = -EIO; 1838e705c121SKalle Valo IWL_ERR(mvm, "Couldn't drain frames for staid %d\n", 1839e705c121SKalle Valo mvmsta->sta_id); 1840e705c121SKalle Valo break; 1841e705c121SKalle Valo } 1842e705c121SKalle Valo 1843e705c121SKalle Valo return ret; 1844e705c121SKalle Valo } 1845e705c121SKalle Valo 1846e705c121SKalle Valo /* 1847e705c121SKalle Valo * Remove a station from the FW table. Before sending the command to remove 1848e705c121SKalle Valo * the station validate that the station is indeed known to the driver (sanity 1849e705c121SKalle Valo * only). 1850e705c121SKalle Valo */ 1851e705c121SKalle Valo static int iwl_mvm_rm_sta_common(struct iwl_mvm *mvm, u8 sta_id) 1852e705c121SKalle Valo { 1853e705c121SKalle Valo struct ieee80211_sta *sta; 1854e705c121SKalle Valo struct iwl_mvm_rm_sta_cmd rm_sta_cmd = { 1855e705c121SKalle Valo .sta_id = sta_id, 1856e705c121SKalle Valo }; 1857e705c121SKalle Valo int ret; 1858e705c121SKalle Valo 1859e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 1860e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1861e705c121SKalle Valo 1862e705c121SKalle Valo /* Note: internal stations are marked as error values */ 1863e705c121SKalle Valo if (!sta) { 1864e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 1865e705c121SKalle Valo return -EINVAL; 1866e705c121SKalle Valo } 1867e705c121SKalle Valo 1868e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, REMOVE_STA, 0, 1869e705c121SKalle Valo sizeof(rm_sta_cmd), &rm_sta_cmd); 1870e705c121SKalle Valo if (ret) { 1871e705c121SKalle Valo IWL_ERR(mvm, "Failed to remove station. Id=%d\n", sta_id); 1872e705c121SKalle Valo return ret; 1873e705c121SKalle Valo } 1874e705c121SKalle Valo 1875e705c121SKalle Valo return 0; 1876e705c121SKalle Valo } 1877e705c121SKalle Valo 187824afba76SLiad Kaufman static void iwl_mvm_disable_sta_queues(struct iwl_mvm *mvm, 187924afba76SLiad Kaufman struct ieee80211_vif *vif, 1880cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 188124afba76SLiad Kaufman { 1882cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 188324afba76SLiad Kaufman int i; 188424afba76SLiad Kaufman 188524afba76SLiad Kaufman lockdep_assert_held(&mvm->mutex); 188624afba76SLiad Kaufman 188724afba76SLiad Kaufman for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 18886862fceeSSara Sharon if (mvm_sta->tid_data[i].txq_id == IWL_MVM_INVALID_QUEUE) 188924afba76SLiad Kaufman continue; 189024afba76SLiad Kaufman 1891c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, sta, mvm_sta->sta_id, 1892c5a976cfSJohannes Berg &mvm_sta->tid_data[i].txq_id, i); 18936862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 189424afba76SLiad Kaufman } 1895cfbc6c4cSSara Sharon 1896cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1897cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1898cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1899cfbc6c4cSSara Sharon 1900cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 190114a3aacfSJose Ignacio Tornos Martinez list_del_init(&mvmtxq->list); 1902cfbc6c4cSSara Sharon } 190324afba76SLiad Kaufman } 190424afba76SLiad Kaufman 1905d6d517b7SSara Sharon int iwl_mvm_wait_sta_queues_empty(struct iwl_mvm *mvm, 1906d6d517b7SSara Sharon struct iwl_mvm_sta *mvm_sta) 1907d6d517b7SSara Sharon { 1908bec9522aSSharon Dvir int i; 1909d6d517b7SSara Sharon 1910d6d517b7SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 1911d6d517b7SSara Sharon u16 txq_id; 1912bec9522aSSharon Dvir int ret; 1913d6d517b7SSara Sharon 1914d6d517b7SSara Sharon spin_lock_bh(&mvm_sta->lock); 1915d6d517b7SSara Sharon txq_id = mvm_sta->tid_data[i].txq_id; 1916d6d517b7SSara Sharon spin_unlock_bh(&mvm_sta->lock); 1917d6d517b7SSara Sharon 1918d6d517b7SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 1919d6d517b7SSara Sharon continue; 1920d6d517b7SSara Sharon 1921d6d517b7SSara Sharon ret = iwl_trans_wait_txq_empty(mvm->trans, txq_id); 1922d6d517b7SSara Sharon if (ret) 1923bec9522aSSharon Dvir return ret; 1924d6d517b7SSara Sharon } 1925d6d517b7SSara Sharon 1926bec9522aSSharon Dvir return 0; 1927d6d517b7SSara Sharon } 1928d6d517b7SSara Sharon 1929*69aef848SMiri Korenblit /* Execute the common part for both MLD and non-MLD modes */ 1930*69aef848SMiri Korenblit static bool iwl_mvm_sta_del(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1931*69aef848SMiri Korenblit struct ieee80211_sta *sta, int *ret) 1932e705c121SKalle Valo { 1933e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1934e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 193594c3e614SSara Sharon u8 sta_id = mvm_sta->sta_id; 1936*69aef848SMiri Korenblit 1937*69aef848SMiri Korenblit lockdep_assert_held(&mvm->mutex); 1938*69aef848SMiri Korenblit 1939*69aef848SMiri Korenblit /* If there is a TXQ still marked as reserved - free it */ 1940*69aef848SMiri Korenblit if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) { 1941*69aef848SMiri Korenblit u8 reserved_txq = mvm_sta->reserved_queue; 1942*69aef848SMiri Korenblit enum iwl_mvm_queue_status *status; 1943*69aef848SMiri Korenblit 1944*69aef848SMiri Korenblit /* 1945*69aef848SMiri Korenblit * If no traffic has gone through the reserved TXQ - it 1946*69aef848SMiri Korenblit * is still marked as IWL_MVM_QUEUE_RESERVED, and 1947*69aef848SMiri Korenblit * should be manually marked as free again 1948*69aef848SMiri Korenblit */ 1949*69aef848SMiri Korenblit status = &mvm->queue_info[reserved_txq].status; 1950*69aef848SMiri Korenblit if (WARN((*status != IWL_MVM_QUEUE_RESERVED) && 1951*69aef848SMiri Korenblit (*status != IWL_MVM_QUEUE_FREE), 1952*69aef848SMiri Korenblit "sta_id %d reserved txq %d status %d", 1953*69aef848SMiri Korenblit sta_id, reserved_txq, *status)) { 1954*69aef848SMiri Korenblit *ret = -EINVAL; 1955*69aef848SMiri Korenblit return true; 1956*69aef848SMiri Korenblit } 1957*69aef848SMiri Korenblit 1958*69aef848SMiri Korenblit *status = IWL_MVM_QUEUE_FREE; 1959*69aef848SMiri Korenblit } 1960*69aef848SMiri Korenblit 1961*69aef848SMiri Korenblit if (vif->type == NL80211_IFTYPE_STATION && 1962*69aef848SMiri Korenblit mvmvif->ap_sta_id == sta_id) { 1963*69aef848SMiri Korenblit /* if associated - we can't remove the AP STA now */ 1964*69aef848SMiri Korenblit if (vif->cfg.assoc) 1965*69aef848SMiri Korenblit return true; 1966*69aef848SMiri Korenblit 1967*69aef848SMiri Korenblit /* first remove remaining keys */ 1968*69aef848SMiri Korenblit iwl_mvm_sec_key_remove_ap(mvm, vif); 1969*69aef848SMiri Korenblit 1970*69aef848SMiri Korenblit /* unassoc - go ahead - remove the AP STA now */ 1971*69aef848SMiri Korenblit mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1972*69aef848SMiri Korenblit } 1973*69aef848SMiri Korenblit 1974*69aef848SMiri Korenblit /* 1975*69aef848SMiri Korenblit * This shouldn't happen - the TDLS channel switch should be canceled 1976*69aef848SMiri Korenblit * before the STA is removed. 1977*69aef848SMiri Korenblit */ 1978*69aef848SMiri Korenblit if (WARN_ON_ONCE(mvm->tdls_cs.peer.sta_id == sta_id)) { 1979*69aef848SMiri Korenblit mvm->tdls_cs.peer.sta_id = IWL_MVM_INVALID_STA; 1980*69aef848SMiri Korenblit cancel_delayed_work(&mvm->tdls_cs.dwork); 1981*69aef848SMiri Korenblit } 1982*69aef848SMiri Korenblit 1983*69aef848SMiri Korenblit /* 1984*69aef848SMiri Korenblit * Make sure that the tx response code sees the station as -EBUSY and 1985*69aef848SMiri Korenblit * calls the drain worker. 1986*69aef848SMiri Korenblit */ 1987*69aef848SMiri Korenblit spin_lock_bh(&mvm_sta->lock); 1988*69aef848SMiri Korenblit spin_unlock_bh(&mvm_sta->lock); 1989*69aef848SMiri Korenblit 1990*69aef848SMiri Korenblit iwl_mvm_time_sync_sta_rm(mvm, sta); 1991*69aef848SMiri Korenblit 1992*69aef848SMiri Korenblit return false; 1993*69aef848SMiri Korenblit } 1994*69aef848SMiri Korenblit 1995*69aef848SMiri Korenblit int iwl_mvm_rm_sta(struct iwl_mvm *mvm, 1996*69aef848SMiri Korenblit struct ieee80211_vif *vif, 1997*69aef848SMiri Korenblit struct ieee80211_sta *sta) 1998*69aef848SMiri Korenblit { 1999*69aef848SMiri Korenblit struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2000e705c121SKalle Valo int ret; 2001e705c121SKalle Valo 2002e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2003e705c121SKalle Valo 2004a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm)) 2005a571f5f6SSara Sharon kfree(mvm_sta->dup_data); 2006a571f5f6SSara Sharon 2007e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, true); 2008e705c121SKalle Valo if (ret) 2009e705c121SKalle Valo return ret; 2010c8f54701SJohannes Berg 2011e705c121SKalle Valo /* flush its queues here since we are freeing mvm_sta */ 2012f9084775SNathan Errera ret = iwl_mvm_flush_sta(mvm, mvm_sta, false); 2013e705c121SKalle Valo if (ret) 2014e705c121SKalle Valo return ret; 2015d6d517b7SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 2016d6d517b7SSara Sharon ret = iwl_mvm_wait_sta_queues_empty(mvm, mvm_sta); 2017d6d517b7SSara Sharon } else { 2018d6d517b7SSara Sharon u32 q_mask = mvm_sta->tfd_queue_msk; 2019d6d517b7SSara Sharon 2020a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 2021d6d517b7SSara Sharon q_mask); 2022d6d517b7SSara Sharon } 2023e705c121SKalle Valo if (ret) 2024e705c121SKalle Valo return ret; 2025c8f54701SJohannes Berg 2026e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, false); 2027e705c121SKalle Valo 2028cfbc6c4cSSara Sharon iwl_mvm_disable_sta_queues(mvm, vif, sta); 202956214749SLiad Kaufman 2030*69aef848SMiri Korenblit if (iwl_mvm_sta_del(mvm, vif, sta, &ret)) 2031e705c121SKalle Valo return ret; 2032e705c121SKalle Valo 2033e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvm_sta->sta_id); 2034e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[mvm_sta->sta_id], NULL); 2035e705c121SKalle Valo 2036e705c121SKalle Valo return ret; 2037e705c121SKalle Valo } 2038e705c121SKalle Valo 2039e705c121SKalle Valo int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm, 2040e705c121SKalle Valo struct ieee80211_vif *vif, 2041e705c121SKalle Valo u8 sta_id) 2042e705c121SKalle Valo { 2043e705c121SKalle Valo int ret = iwl_mvm_rm_sta_common(mvm, sta_id); 2044e705c121SKalle Valo 2045e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2046e705c121SKalle Valo 2047e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], NULL); 2048e705c121SKalle Valo return ret; 2049e705c121SKalle Valo } 2050e705c121SKalle Valo 20510e39eb03SChaya Rachel Ivgi int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, 2052e705c121SKalle Valo struct iwl_mvm_int_sta *sta, 2053ced19f26SSara Sharon u32 qmask, enum nl80211_iftype iftype, 2054006c152aSMiri Korenblit u8 type) 2055e705c121SKalle Valo { 2056df65c8d1SAvraham Stern if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 2057df65c8d1SAvraham Stern sta->sta_id == IWL_MVM_INVALID_STA) { 2058e705c121SKalle Valo sta->sta_id = iwl_mvm_find_free_sta_id(mvm, iftype); 20590ae98812SSara Sharon if (WARN_ON_ONCE(sta->sta_id == IWL_MVM_INVALID_STA)) 2060e705c121SKalle Valo return -ENOSPC; 2061e705c121SKalle Valo } 2062e705c121SKalle Valo 2063e705c121SKalle Valo sta->tfd_queue_msk = qmask; 2064ced19f26SSara Sharon sta->type = type; 2065e705c121SKalle Valo 2066e705c121SKalle Valo /* put a non-NULL value so iterating over the stations won't stop */ 2067e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta->sta_id], ERR_PTR(-EINVAL)); 2068e705c121SKalle Valo return 0; 2069e705c121SKalle Valo } 2070e705c121SKalle Valo 207126d6c16bSSara Sharon void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta) 2072e705c121SKalle Valo { 2073e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta->sta_id], NULL); 2074e705c121SKalle Valo memset(sta, 0, sizeof(struct iwl_mvm_int_sta)); 20750ae98812SSara Sharon sta->sta_id = IWL_MVM_INVALID_STA; 2076e705c121SKalle Valo } 2077e705c121SKalle Valo 207891cf5dedSJohannes Berg static void iwl_mvm_enable_aux_snif_queue(struct iwl_mvm *mvm, u16 queue, 2079b13f43a4SEmmanuel Grumbach u8 sta_id, u8 fifo) 2080e705c121SKalle Valo { 20819617040eSEmmanuel Grumbach unsigned int wdg_timeout = 20829617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout; 208328d0793eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 2084b13f43a4SEmmanuel Grumbach .fifo = fifo, 2085b13f43a4SEmmanuel Grumbach .sta_id = sta_id, 208628d0793eSLiad Kaufman .tid = IWL_MAX_TID_COUNT, 208728d0793eSLiad Kaufman .aggregate = false, 208828d0793eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 208928d0793eSLiad Kaufman }; 209028d0793eSLiad Kaufman 209191cf5dedSJohannes Berg WARN_ON(iwl_mvm_has_new_tx_api(mvm)); 209291cf5dedSJohannes Berg 209391cf5dedSJohannes Berg iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 209428d0793eSLiad Kaufman } 209591cf5dedSJohannes Berg 209691cf5dedSJohannes Berg static int iwl_mvm_enable_aux_snif_queue_tvqm(struct iwl_mvm *mvm, u8 sta_id) 209791cf5dedSJohannes Berg { 20989617040eSEmmanuel Grumbach unsigned int wdg_timeout = 20999617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout; 210091cf5dedSJohannes Berg 210191cf5dedSJohannes Berg WARN_ON(!iwl_mvm_has_new_tx_api(mvm)); 210291cf5dedSJohannes Berg 210309369983SJohannes Berg return iwl_mvm_tvqm_enable_txq(mvm, NULL, sta_id, IWL_MAX_TID_COUNT, 210491cf5dedSJohannes Berg wdg_timeout); 210591cf5dedSJohannes Berg } 210691cf5dedSJohannes Berg 210791cf5dedSJohannes Berg static int iwl_mvm_add_int_sta_with_queue(struct iwl_mvm *mvm, int macidx, 2108be82ecd3SAvraham Stern int maccolor, u8 *addr, 210991cf5dedSJohannes Berg struct iwl_mvm_int_sta *sta, 211091cf5dedSJohannes Berg u16 *queue, int fifo) 211191cf5dedSJohannes Berg { 211291cf5dedSJohannes Berg int ret; 211391cf5dedSJohannes Berg 211491cf5dedSJohannes Berg /* Map queue to fifo - needs to happen before adding station */ 211591cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) 211691cf5dedSJohannes Berg iwl_mvm_enable_aux_snif_queue(mvm, *queue, sta->sta_id, fifo); 211791cf5dedSJohannes Berg 2118be82ecd3SAvraham Stern ret = iwl_mvm_add_int_sta_common(mvm, sta, addr, macidx, maccolor); 211991cf5dedSJohannes Berg if (ret) { 212091cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) 2121c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, sta->sta_id, queue, 212264ff7eb0SJohannes Berg IWL_MAX_TID_COUNT); 212391cf5dedSJohannes Berg return ret; 212491cf5dedSJohannes Berg } 212591cf5dedSJohannes Berg 212691cf5dedSJohannes Berg /* 212791cf5dedSJohannes Berg * For 22000 firmware and on we cannot add queue to a station unknown 212891cf5dedSJohannes Berg * to firmware so enable queue here - after the station was added 212991cf5dedSJohannes Berg */ 213091cf5dedSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) { 213191cf5dedSJohannes Berg int txq; 213291cf5dedSJohannes Berg 213391cf5dedSJohannes Berg txq = iwl_mvm_enable_aux_snif_queue_tvqm(mvm, sta->sta_id); 213491cf5dedSJohannes Berg if (txq < 0) { 213591cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, sta->sta_id); 213691cf5dedSJohannes Berg return txq; 213791cf5dedSJohannes Berg } 213891cf5dedSJohannes Berg 213991cf5dedSJohannes Berg *queue = txq; 214091cf5dedSJohannes Berg } 214191cf5dedSJohannes Berg 214291cf5dedSJohannes Berg return 0; 2143c5a719eeSSara Sharon } 2144c5a719eeSSara Sharon 21452c2c3647SNathan Errera int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm, u32 lmac_id) 2146c5a719eeSSara Sharon { 2147c5a719eeSSara Sharon int ret; 2148c5a719eeSSara Sharon 2149c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2150c5a719eeSSara Sharon 2151c5a719eeSSara Sharon /* Allocate aux station and assign to it the aux queue */ 2152c5a719eeSSara Sharon ret = iwl_mvm_allocate_int_sta(mvm, &mvm->aux_sta, BIT(mvm->aux_queue), 2153ced19f26SSara Sharon NL80211_IFTYPE_UNSPECIFIED, 2154ced19f26SSara Sharon IWL_STA_AUX_ACTIVITY); 2155c5a719eeSSara Sharon if (ret) 2156c5a719eeSSara Sharon return ret; 2157c5a719eeSSara Sharon 21582c2c3647SNathan Errera /* 21592c2c3647SNathan Errera * In CDB NICs we need to specify which lmac to use for aux activity 21602c2c3647SNathan Errera * using the mac_id argument place to send lmac_id to the function 21612c2c3647SNathan Errera */ 21622c2c3647SNathan Errera ret = iwl_mvm_add_int_sta_with_queue(mvm, lmac_id, 0, NULL, 216391cf5dedSJohannes Berg &mvm->aux_sta, &mvm->aux_queue, 2164b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_MCAST); 2165c5a719eeSSara Sharon if (ret) { 2166e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2167e705c121SKalle Valo return ret; 2168e705c121SKalle Valo } 2169e705c121SKalle Valo 2170c5a719eeSSara Sharon return 0; 2171c5a719eeSSara Sharon } 2172c5a719eeSSara Sharon 21730e39eb03SChaya Rachel Ivgi int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 21740e39eb03SChaya Rachel Ivgi { 21750e39eb03SChaya Rachel Ivgi struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 21760e39eb03SChaya Rachel Ivgi 21770e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 2178b13f43a4SEmmanuel Grumbach 217991cf5dedSJohannes Berg return iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id, mvmvif->color, 2180be82ecd3SAvraham Stern NULL, &mvm->snif_sta, 2181be82ecd3SAvraham Stern &mvm->snif_queue, 2182b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_BE); 21830e39eb03SChaya Rachel Ivgi } 21840e39eb03SChaya Rachel Ivgi 21850e39eb03SChaya Rachel Ivgi int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 21860e39eb03SChaya Rachel Ivgi { 21870e39eb03SChaya Rachel Ivgi int ret; 21880e39eb03SChaya Rachel Ivgi 21890e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 21900e39eb03SChaya Rachel Ivgi 2191e223e42aSGregory Greenman if (WARN_ON_ONCE(mvm->snif_sta.sta_id == IWL_MVM_INVALID_STA)) 2192e223e42aSGregory Greenman return -EINVAL; 2193e223e42aSGregory Greenman 2194c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, mvm->snif_sta.sta_id, 2195c5a976cfSJohannes Berg &mvm->snif_queue, IWL_MAX_TID_COUNT); 21960e39eb03SChaya Rachel Ivgi ret = iwl_mvm_rm_sta_common(mvm, mvm->snif_sta.sta_id); 21970e39eb03SChaya Rachel Ivgi if (ret) 21980e39eb03SChaya Rachel Ivgi IWL_WARN(mvm, "Failed sending remove station\n"); 21990e39eb03SChaya Rachel Ivgi 22000e39eb03SChaya Rachel Ivgi return ret; 22010e39eb03SChaya Rachel Ivgi } 22020e39eb03SChaya Rachel Ivgi 2203f327236dSSharon int iwl_mvm_rm_aux_sta(struct iwl_mvm *mvm) 2204f327236dSSharon { 2205f327236dSSharon int ret; 2206f327236dSSharon 2207f327236dSSharon lockdep_assert_held(&mvm->mutex); 2208f327236dSSharon 2209e223e42aSGregory Greenman if (WARN_ON_ONCE(mvm->aux_sta.sta_id == IWL_MVM_INVALID_STA)) 2210e223e42aSGregory Greenman return -EINVAL; 2211e223e42aSGregory Greenman 2212c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, mvm->aux_sta.sta_id, 2213c5a976cfSJohannes Berg &mvm->aux_queue, IWL_MAX_TID_COUNT); 2214f327236dSSharon ret = iwl_mvm_rm_sta_common(mvm, mvm->aux_sta.sta_id); 2215f327236dSSharon if (ret) 2216f327236dSSharon IWL_WARN(mvm, "Failed sending remove station\n"); 2217f327236dSSharon iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2218f327236dSSharon 2219f327236dSSharon return ret; 2220f327236dSSharon } 2221f327236dSSharon 22220e39eb03SChaya Rachel Ivgi void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm) 22230e39eb03SChaya Rachel Ivgi { 22240e39eb03SChaya Rachel Ivgi iwl_mvm_dealloc_int_sta(mvm, &mvm->snif_sta); 22250e39eb03SChaya Rachel Ivgi } 22260e39eb03SChaya Rachel Ivgi 2227e705c121SKalle Valo /* 2228e705c121SKalle Valo * Send the add station command for the vif's broadcast station. 2229e705c121SKalle Valo * Assumes that the station was already allocated. 2230e705c121SKalle Valo * 2231e705c121SKalle Valo * @mvm: the mvm component 2232e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2233e705c121SKalle Valo * @bsta: the broadcast station to add. 2234e705c121SKalle Valo */ 2235e705c121SKalle Valo int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2236e705c121SKalle Valo { 2237e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2238e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 2239e705c121SKalle Valo static const u8 _baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; 2240e705c121SKalle Valo const u8 *baddr = _baddr; 22417daa7624SJohannes Berg int queue; 2242df88c08dSLiad Kaufman int ret; 2243c5a719eeSSara Sharon unsigned int wdg_timeout = 2244c5a719eeSSara Sharon iwl_mvm_get_wd_timeout(mvm, vif, false, false); 2245de24f638SLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 2246de24f638SLiad Kaufman .fifo = IWL_MVM_TX_FIFO_VO, 2247de24f638SLiad Kaufman .sta_id = mvmvif->bcast_sta.sta_id, 2248de24f638SLiad Kaufman .tid = IWL_MAX_TID_COUNT, 2249de24f638SLiad Kaufman .aggregate = false, 2250de24f638SLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 2251de24f638SLiad Kaufman }; 2252de24f638SLiad Kaufman 2253c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2254c5a719eeSSara Sharon 2255c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 22564d339989SLiad Kaufman if (vif->type == NL80211_IFTYPE_AP || 2257f8510d67SNathan Chancellor vif->type == NL80211_IFTYPE_ADHOC) { 225849f71713SSara Sharon queue = mvm->probe_queue; 2259f8510d67SNathan Chancellor } else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 226049f71713SSara Sharon queue = mvm->p2p_dev_queue; 2261f8510d67SNathan Chancellor } else { 2262f8510d67SNathan Chancellor WARN(1, "Missing required TXQ for adding bcast STA\n"); 2263de24f638SLiad Kaufman return -EINVAL; 2264f8510d67SNathan Chancellor } 2265de24f638SLiad Kaufman 2266df88c08dSLiad Kaufman bsta->tfd_queue_msk |= BIT(queue); 2267c5a719eeSSara Sharon 2268cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 2269de24f638SLiad Kaufman } 2270de24f638SLiad Kaufman 2271e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_ADHOC) 2272e705c121SKalle Valo baddr = vif->bss_conf.bssid; 2273e705c121SKalle Valo 22740ae98812SSara Sharon if (WARN_ON_ONCE(bsta->sta_id == IWL_MVM_INVALID_STA)) 2275e705c121SKalle Valo return -ENOSPC; 2276e705c121SKalle Valo 2277df88c08dSLiad Kaufman ret = iwl_mvm_add_int_sta_common(mvm, bsta, baddr, 2278e705c121SKalle Valo mvmvif->id, mvmvif->color); 2279df88c08dSLiad Kaufman if (ret) 2280df88c08dSLiad Kaufman return ret; 2281df88c08dSLiad Kaufman 2282df88c08dSLiad Kaufman /* 22832f7a3863SLuca Coelho * For 22000 firmware and on we cannot add queue to a station unknown 2284c5a719eeSSara Sharon * to firmware so enable queue here - after the station was added 2285df88c08dSLiad Kaufman */ 2286310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 228709369983SJohannes Berg queue = iwl_mvm_tvqm_enable_txq(mvm, NULL, bsta->sta_id, 2288310181ecSSara Sharon IWL_MAX_TID_COUNT, 2289c5a719eeSSara Sharon wdg_timeout); 229091cf5dedSJohannes Berg if (queue < 0) { 229191cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, bsta->sta_id); 229291cf5dedSJohannes Berg return queue; 229391cf5dedSJohannes Berg } 22947daa7624SJohannes Berg 22957b758a11SLuca Coelho if (vif->type == NL80211_IFTYPE_AP || 22967b758a11SLuca Coelho vif->type == NL80211_IFTYPE_ADHOC) 2297310181ecSSara Sharon mvm->probe_queue = queue; 2298310181ecSSara Sharon else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 2299310181ecSSara Sharon mvm->p2p_dev_queue = queue; 2300310181ecSSara Sharon } 2301df88c08dSLiad Kaufman 2302df88c08dSLiad Kaufman return 0; 2303df88c08dSLiad Kaufman } 2304df88c08dSLiad Kaufman 230560efeca1SMiri Korenblit void iwl_mvm_free_bcast_sta_queues(struct iwl_mvm *mvm, 2306df88c08dSLiad Kaufman struct ieee80211_vif *vif) 2307df88c08dSLiad Kaufman { 2308df88c08dSLiad Kaufman struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2309c6ce1c74SJohannes Berg u16 *queueptr, queue; 2310df88c08dSLiad Kaufman 2311df88c08dSLiad Kaufman lockdep_assert_held(&mvm->mutex); 2312df88c08dSLiad Kaufman 2313f9084775SNathan Errera iwl_mvm_flush_sta(mvm, &mvmvif->bcast_sta, true); 2314d49394a1SSara Sharon 2315d167e81aSMordechai Goodstein switch (vif->type) { 2316d167e81aSMordechai Goodstein case NL80211_IFTYPE_AP: 2317d167e81aSMordechai Goodstein case NL80211_IFTYPE_ADHOC: 2318c6ce1c74SJohannes Berg queueptr = &mvm->probe_queue; 2319d167e81aSMordechai Goodstein break; 2320d167e81aSMordechai Goodstein case NL80211_IFTYPE_P2P_DEVICE: 2321c6ce1c74SJohannes Berg queueptr = &mvm->p2p_dev_queue; 2322d167e81aSMordechai Goodstein break; 2323d167e81aSMordechai Goodstein default: 2324d167e81aSMordechai Goodstein WARN(1, "Can't free bcast queue on vif type %d\n", 2325d167e81aSMordechai Goodstein vif->type); 2326d167e81aSMordechai Goodstein return; 2327df88c08dSLiad Kaufman } 2328df88c08dSLiad Kaufman 2329c6ce1c74SJohannes Berg queue = *queueptr; 2330c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, mvmvif->bcast_sta.sta_id, 2331c5a976cfSJohannes Berg queueptr, IWL_MAX_TID_COUNT); 2332d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) 2333d167e81aSMordechai Goodstein return; 2334d167e81aSMordechai Goodstein 2335d167e81aSMordechai Goodstein WARN_ON(!(mvmvif->bcast_sta.tfd_queue_msk & BIT(queue))); 2336d167e81aSMordechai Goodstein mvmvif->bcast_sta.tfd_queue_msk &= ~BIT(queue); 2337e705c121SKalle Valo } 2338e705c121SKalle Valo 2339e705c121SKalle Valo /* Send the FW a request to remove the station from it's internal data 2340e705c121SKalle Valo * structures, but DO NOT remove the entry from the local data structures. */ 2341e705c121SKalle Valo int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2342e705c121SKalle Valo { 2343e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2344e705c121SKalle Valo int ret; 2345e705c121SKalle Valo 2346e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2347e705c121SKalle Valo 2348df88c08dSLiad Kaufman iwl_mvm_free_bcast_sta_queues(mvm, vif); 2349df88c08dSLiad Kaufman 2350e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvmvif->bcast_sta.sta_id); 2351e705c121SKalle Valo if (ret) 2352e705c121SKalle Valo IWL_WARN(mvm, "Failed sending remove station\n"); 2353e705c121SKalle Valo return ret; 2354e705c121SKalle Valo } 2355e705c121SKalle Valo 2356e705c121SKalle Valo int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2357e705c121SKalle Valo { 2358e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2359e705c121SKalle Valo 2360e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2361e705c121SKalle Valo 2362c8f54701SJohannes Berg return iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, 0, 2363ced19f26SSara Sharon ieee80211_vif_type_p2p(vif), 2364ced19f26SSara Sharon IWL_STA_GENERAL_PURPOSE); 2365e705c121SKalle Valo } 2366e705c121SKalle Valo 2367e705c121SKalle Valo /* Allocate a new station entry for the broadcast station to the given vif, 2368e705c121SKalle Valo * and send it to the FW. 2369e705c121SKalle Valo * Note that each P2P mac should have its own broadcast station. 2370e705c121SKalle Valo * 2371e705c121SKalle Valo * @mvm: the mvm component 2372e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2373e705c121SKalle Valo * @bsta: the broadcast station to add. */ 2374d197358bSLuca Coelho int iwl_mvm_add_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2375e705c121SKalle Valo { 2376e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2377e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 2378e705c121SKalle Valo int ret; 2379e705c121SKalle Valo 2380e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2381e705c121SKalle Valo 2382e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 2383e705c121SKalle Valo if (ret) 2384e705c121SKalle Valo return ret; 2385e705c121SKalle Valo 2386e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2387e705c121SKalle Valo 2388e705c121SKalle Valo if (ret) 2389e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, bsta); 2390e705c121SKalle Valo 2391e705c121SKalle Valo return ret; 2392e705c121SKalle Valo } 2393e705c121SKalle Valo 2394e705c121SKalle Valo void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2395e705c121SKalle Valo { 2396e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2397e705c121SKalle Valo 2398e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta); 2399e705c121SKalle Valo } 2400e705c121SKalle Valo 2401e705c121SKalle Valo /* 2402e705c121SKalle Valo * Send the FW a request to remove the station from it's internal data 2403e705c121SKalle Valo * structures, and in addition remove it from the local data structure. 2404e705c121SKalle Valo */ 2405d197358bSLuca Coelho int iwl_mvm_rm_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2406e705c121SKalle Valo { 2407e705c121SKalle Valo int ret; 2408e705c121SKalle Valo 2409e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2410e705c121SKalle Valo 2411e705c121SKalle Valo ret = iwl_mvm_send_rm_bcast_sta(mvm, vif); 2412e705c121SKalle Valo 2413e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif); 2414e705c121SKalle Valo 2415e705c121SKalle Valo return ret; 2416e705c121SKalle Valo } 2417e705c121SKalle Valo 241826d6c16bSSara Sharon /* 241926d6c16bSSara Sharon * Allocate a new station entry for the multicast station to the given vif, 242026d6c16bSSara Sharon * and send it to the FW. 242126d6c16bSSara Sharon * Note that each AP/GO mac should have its own multicast station. 242226d6c16bSSara Sharon * 242326d6c16bSSara Sharon * @mvm: the mvm component 242426d6c16bSSara Sharon * @vif: the interface to which the multicast station is added 242526d6c16bSSara Sharon */ 242626d6c16bSSara Sharon int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 242726d6c16bSSara Sharon { 242826d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 242926d6c16bSSara Sharon struct iwl_mvm_int_sta *msta = &mvmvif->mcast_sta; 243026d6c16bSSara Sharon static const u8 _maddr[] = {0x03, 0x00, 0x00, 0x00, 0x00, 0x00}; 243126d6c16bSSara Sharon const u8 *maddr = _maddr; 243226d6c16bSSara Sharon struct iwl_trans_txq_scd_cfg cfg = { 2433192a7e1fSJohannes Berg .fifo = vif->type == NL80211_IFTYPE_AP ? 2434192a7e1fSJohannes Berg IWL_MVM_TX_FIFO_MCAST : IWL_MVM_TX_FIFO_BE, 243526d6c16bSSara Sharon .sta_id = msta->sta_id, 24366508de03SIlan Peer .tid = 0, 243726d6c16bSSara Sharon .aggregate = false, 243826d6c16bSSara Sharon .frame_limit = IWL_FRAME_LIMIT, 243926d6c16bSSara Sharon }; 244026d6c16bSSara Sharon unsigned int timeout = iwl_mvm_get_wd_timeout(mvm, vif, false, false); 244126d6c16bSSara Sharon int ret; 244226d6c16bSSara Sharon 244326d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 244426d6c16bSSara Sharon 2445ee48b722SLiad Kaufman if (WARN_ON(vif->type != NL80211_IFTYPE_AP && 2446ee48b722SLiad Kaufman vif->type != NL80211_IFTYPE_ADHOC)) 244726d6c16bSSara Sharon return -ENOTSUPP; 244826d6c16bSSara Sharon 2449ced19f26SSara Sharon /* 2450fc07bd8cSSara Sharon * In IBSS, ieee80211_check_queues() sets the cab_queue to be 2451fc07bd8cSSara Sharon * invalid, so make sure we use the queue we want. 2452fc07bd8cSSara Sharon * Note that this is done here as we want to avoid making DQA 2453fc07bd8cSSara Sharon * changes in mac80211 layer. 2454fc07bd8cSSara Sharon */ 2455cfbc6c4cSSara Sharon if (vif->type == NL80211_IFTYPE_ADHOC) 2456cfbc6c4cSSara Sharon mvmvif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE; 2457fc07bd8cSSara Sharon 2458fc07bd8cSSara Sharon /* 2459ced19f26SSara Sharon * While in previous FWs we had to exclude cab queue from TFD queue 2460ced19f26SSara Sharon * mask, now it is needed as any other queue. 2461ced19f26SSara Sharon */ 2462ced19f26SSara Sharon if (!iwl_mvm_has_new_tx_api(mvm) && 2463ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2464cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, 2465cfbc6c4cSSara Sharon timeout); 2466cfbc6c4cSSara Sharon msta->tfd_queue_msk |= BIT(mvmvif->cab_queue); 2467ced19f26SSara Sharon } 246826d6c16bSSara Sharon ret = iwl_mvm_add_int_sta_common(mvm, msta, maddr, 246926d6c16bSSara Sharon mvmvif->id, mvmvif->color); 247091cf5dedSJohannes Berg if (ret) 247191cf5dedSJohannes Berg goto err; 247226d6c16bSSara Sharon 247326d6c16bSSara Sharon /* 247426d6c16bSSara Sharon * Enable cab queue after the ADD_STA command is sent. 24752f7a3863SLuca Coelho * This is needed for 22000 firmware which won't accept SCD_QUEUE_CFG 2476ced19f26SSara Sharon * command with unknown station id, and for FW that doesn't support 2477ced19f26SSara Sharon * station API since the cab queue is not included in the 2478ced19f26SSara Sharon * tfd_queue_mask. 247926d6c16bSSara Sharon */ 2480310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 248109369983SJohannes Berg int queue = iwl_mvm_tvqm_enable_txq(mvm, NULL, msta->sta_id, 248209369983SJohannes Berg 0, timeout); 248391cf5dedSJohannes Berg if (queue < 0) { 248491cf5dedSJohannes Berg ret = queue; 248591cf5dedSJohannes Berg goto err; 248691cf5dedSJohannes Berg } 2487e2af3fabSSara Sharon mvmvif->cab_queue = queue; 2488ced19f26SSara Sharon } else if (!fw_has_api(&mvm->fw->ucode_capa, 2489fc07bd8cSSara Sharon IWL_UCODE_TLV_API_STA_TYPE)) 2490cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, 2491cfbc6c4cSSara Sharon timeout); 249226d6c16bSSara Sharon 249326d6c16bSSara Sharon return 0; 249491cf5dedSJohannes Berg err: 249591cf5dedSJohannes Berg iwl_mvm_dealloc_int_sta(mvm, msta); 249691cf5dedSJohannes Berg return ret; 249726d6c16bSSara Sharon } 249826d6c16bSSara Sharon 249928916a16SEmmanuel Grumbach static int __iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, u8 sta_id, 250028916a16SEmmanuel Grumbach struct ieee80211_key_conf *keyconf, 250128916a16SEmmanuel Grumbach bool mcast) 250228916a16SEmmanuel Grumbach { 250328916a16SEmmanuel Grumbach union { 250428916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 250528916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd cmd; 250628916a16SEmmanuel Grumbach } u = {}; 250728916a16SEmmanuel Grumbach bool new_api = fw_has_api(&mvm->fw->ucode_capa, 250828916a16SEmmanuel Grumbach IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 250928916a16SEmmanuel Grumbach __le16 key_flags; 251028916a16SEmmanuel Grumbach int ret, size; 251128916a16SEmmanuel Grumbach u32 status; 251228916a16SEmmanuel Grumbach 251328916a16SEmmanuel Grumbach /* This is a valid situation for GTK removal */ 251428916a16SEmmanuel Grumbach if (sta_id == IWL_MVM_INVALID_STA) 251528916a16SEmmanuel Grumbach return 0; 251628916a16SEmmanuel Grumbach 251728916a16SEmmanuel Grumbach key_flags = cpu_to_le16((keyconf->keyidx << STA_KEY_FLG_KEYID_POS) & 251828916a16SEmmanuel Grumbach STA_KEY_FLG_KEYID_MSK); 251928916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_FLG_NO_ENC | STA_KEY_FLG_WEP_KEY_MAP); 252028916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_NOT_VALID); 252128916a16SEmmanuel Grumbach 252228916a16SEmmanuel Grumbach if (mcast) 252328916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 252428916a16SEmmanuel Grumbach 252528916a16SEmmanuel Grumbach /* 252628916a16SEmmanuel Grumbach * The fields assigned here are in the same location at the start 252728916a16SEmmanuel Grumbach * of the command, so we can do this union trick. 252828916a16SEmmanuel Grumbach */ 252928916a16SEmmanuel Grumbach u.cmd.common.key_flags = key_flags; 253028916a16SEmmanuel Grumbach u.cmd.common.key_offset = keyconf->hw_key_idx; 253128916a16SEmmanuel Grumbach u.cmd.common.sta_id = sta_id; 253228916a16SEmmanuel Grumbach 253328916a16SEmmanuel Grumbach size = new_api ? sizeof(u.cmd) : sizeof(u.cmd_v1); 253428916a16SEmmanuel Grumbach 253528916a16SEmmanuel Grumbach status = ADD_STA_SUCCESS; 253628916a16SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, &u.cmd, 253728916a16SEmmanuel Grumbach &status); 253828916a16SEmmanuel Grumbach 253928916a16SEmmanuel Grumbach switch (status) { 254028916a16SEmmanuel Grumbach case ADD_STA_SUCCESS: 254128916a16SEmmanuel Grumbach IWL_DEBUG_WEP(mvm, "MODIFY_STA: remove sta key passed\n"); 254228916a16SEmmanuel Grumbach break; 254328916a16SEmmanuel Grumbach default: 254428916a16SEmmanuel Grumbach ret = -EIO; 254528916a16SEmmanuel Grumbach IWL_ERR(mvm, "MODIFY_STA: remove sta key failed\n"); 254628916a16SEmmanuel Grumbach break; 254728916a16SEmmanuel Grumbach } 254828916a16SEmmanuel Grumbach 254928916a16SEmmanuel Grumbach return ret; 255028916a16SEmmanuel Grumbach } 255128916a16SEmmanuel Grumbach 255226d6c16bSSara Sharon /* 255326d6c16bSSara Sharon * Send the FW a request to remove the station from it's internal data 255426d6c16bSSara Sharon * structures, and in addition remove it from the local data structure. 255526d6c16bSSara Sharon */ 255626d6c16bSSara Sharon int iwl_mvm_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 255726d6c16bSSara Sharon { 255826d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 255926d6c16bSSara Sharon int ret; 256026d6c16bSSara Sharon 256126d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 256226d6c16bSSara Sharon 2563f9084775SNathan Errera iwl_mvm_flush_sta(mvm, &mvmvif->mcast_sta, true); 2564d49394a1SSara Sharon 2565c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, mvmvif->mcast_sta.sta_id, 2566c5a976cfSJohannes Berg &mvmvif->cab_queue, 0); 256726d6c16bSSara Sharon 256826d6c16bSSara Sharon ret = iwl_mvm_rm_sta_common(mvm, mvmvif->mcast_sta.sta_id); 256926d6c16bSSara Sharon if (ret) 257026d6c16bSSara Sharon IWL_WARN(mvm, "Failed sending remove station\n"); 257126d6c16bSSara Sharon 257226d6c16bSSara Sharon return ret; 257326d6c16bSSara Sharon } 257426d6c16bSSara Sharon 2575b915c101SSara Sharon static void iwl_mvm_sync_rxq_del_ba(struct iwl_mvm *mvm, u8 baid) 257610b2b201SSara Sharon { 25775e1688ceSJohannes Berg struct iwl_mvm_delba_data notif = { 25785e1688ceSJohannes Berg .baid = baid, 2579b915c101SSara Sharon }; 25805e1688ceSJohannes Berg 25815e1688ceSJohannes Berg iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_NOTIF_DEL_BA, true, 25825e1688ceSJohannes Berg ¬if, sizeof(notif)); 258310b2b201SSara Sharon }; 258410b2b201SSara Sharon 2585b915c101SSara Sharon static void iwl_mvm_free_reorder(struct iwl_mvm *mvm, 2586b915c101SSara Sharon struct iwl_mvm_baid_data *data) 2587b915c101SSara Sharon { 2588b915c101SSara Sharon int i; 2589b915c101SSara Sharon 2590b915c101SSara Sharon iwl_mvm_sync_rxq_del_ba(mvm, data->baid); 2591b915c101SSara Sharon 2592b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2593b915c101SSara Sharon int j; 2594b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2595b915c101SSara Sharon &data->reorder_buf[i]; 2596dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2597dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2598b915c101SSara Sharon 25990690405fSSara Sharon spin_lock_bh(&reorder_buf->lock); 26000690405fSSara Sharon if (likely(!reorder_buf->num_stored)) { 26010690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 2602b915c101SSara Sharon continue; 26030690405fSSara Sharon } 2604b915c101SSara Sharon 2605b915c101SSara Sharon /* 2606b915c101SSara Sharon * This shouldn't happen in regular DELBA since the internal 2607b915c101SSara Sharon * delBA notification should trigger a release of all frames in 2608b915c101SSara Sharon * the reorder buffer. 2609b915c101SSara Sharon */ 2610b915c101SSara Sharon WARN_ON(1); 2611b915c101SSara Sharon 2612b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2613dfdddd92SJohannes Berg __skb_queue_purge(&entries[j].e.frames); 26140690405fSSara Sharon /* 26150690405fSSara Sharon * Prevent timer re-arm. This prevents a very far fetched case 26160690405fSSara Sharon * where we timed out on the notification. There may be prior 26170690405fSSara Sharon * RX frames pending in the RX queue before the notification 26180690405fSSara Sharon * that might get processed between now and the actual deletion 26190690405fSSara Sharon * and we would re-arm the timer although we are deleting the 26200690405fSSara Sharon * reorder buffer. 26210690405fSSara Sharon */ 26220690405fSSara Sharon reorder_buf->removed = true; 26230690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 26240690405fSSara Sharon del_timer_sync(&reorder_buf->reorder_timer); 2625b915c101SSara Sharon } 2626b915c101SSara Sharon } 2627b915c101SSara Sharon 2628b915c101SSara Sharon static void iwl_mvm_init_reorder_buffer(struct iwl_mvm *mvm, 2629b915c101SSara Sharon struct iwl_mvm_baid_data *data, 2630514c3069SLuca Coelho u16 ssn, u16 buf_size) 2631b915c101SSara Sharon { 2632b915c101SSara Sharon int i; 2633b915c101SSara Sharon 2634b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2635b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2636b915c101SSara Sharon &data->reorder_buf[i]; 2637dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2638dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2639b915c101SSara Sharon int j; 2640b915c101SSara Sharon 2641b915c101SSara Sharon reorder_buf->num_stored = 0; 2642b915c101SSara Sharon reorder_buf->head_sn = ssn; 2643b915c101SSara Sharon reorder_buf->buf_size = buf_size; 26440690405fSSara Sharon /* rx reorder timer */ 26458cef5344SKees Cook timer_setup(&reorder_buf->reorder_timer, 26468cef5344SKees Cook iwl_mvm_reorder_timer_expired, 0); 26470690405fSSara Sharon spin_lock_init(&reorder_buf->lock); 26480690405fSSara Sharon reorder_buf->mvm = mvm; 2649b915c101SSara Sharon reorder_buf->queue = i; 26505d43eab6SSara Sharon reorder_buf->valid = false; 2651b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2652dfdddd92SJohannes Berg __skb_queue_head_init(&entries[j].e.frames); 2653b915c101SSara Sharon } 265410b2b201SSara Sharon } 265510b2b201SSara Sharon 265697f70c56SJohannes Berg static int iwl_mvm_fw_baid_op_sta(struct iwl_mvm *mvm, 265797f70c56SJohannes Berg struct iwl_mvm_sta *mvm_sta, 265897f70c56SJohannes Berg bool start, int tid, u16 ssn, 265997f70c56SJohannes Berg u16 buf_size) 26600f3a4e48SJohannes Berg { 26610f3a4e48SJohannes Berg struct iwl_mvm_add_sta_cmd cmd = { 26620f3a4e48SJohannes Berg .mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color), 26630f3a4e48SJohannes Berg .sta_id = mvm_sta->sta_id, 26640f3a4e48SJohannes Berg .add_modify = STA_MODE_MODIFY, 26650f3a4e48SJohannes Berg }; 26660f3a4e48SJohannes Berg u32 status; 26670f3a4e48SJohannes Berg int ret; 26680f3a4e48SJohannes Berg 26690f3a4e48SJohannes Berg if (start) { 26700f3a4e48SJohannes Berg cmd.add_immediate_ba_tid = tid; 26710f3a4e48SJohannes Berg cmd.add_immediate_ba_ssn = cpu_to_le16(ssn); 26720f3a4e48SJohannes Berg cmd.rx_ba_window = cpu_to_le16(buf_size); 26730f3a4e48SJohannes Berg cmd.modify_mask = STA_MODIFY_ADD_BA_TID; 26740f3a4e48SJohannes Berg } else { 26750f3a4e48SJohannes Berg cmd.remove_immediate_ba_tid = tid; 26760f3a4e48SJohannes Berg cmd.modify_mask = STA_MODIFY_REMOVE_BA_TID; 26770f3a4e48SJohannes Berg } 26780f3a4e48SJohannes Berg 26790f3a4e48SJohannes Berg status = ADD_STA_SUCCESS; 26800f3a4e48SJohannes Berg ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 26810f3a4e48SJohannes Berg iwl_mvm_add_sta_cmd_size(mvm), 26820f3a4e48SJohannes Berg &cmd, &status); 26830f3a4e48SJohannes Berg if (ret) 26840f3a4e48SJohannes Berg return ret; 26850f3a4e48SJohannes Berg 26860f3a4e48SJohannes Berg switch (status & IWL_ADD_STA_STATUS_MASK) { 26870f3a4e48SJohannes Berg case ADD_STA_SUCCESS: 26880f3a4e48SJohannes Berg IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n", 26890f3a4e48SJohannes Berg start ? "start" : "stopp"); 26900f3a4e48SJohannes Berg if (WARN_ON(start && iwl_mvm_has_new_rx_api(mvm) && 26910f3a4e48SJohannes Berg !(status & IWL_ADD_STA_BAID_VALID_MASK))) 26920f3a4e48SJohannes Berg return -EINVAL; 26930f3a4e48SJohannes Berg return u32_get_bits(status, IWL_ADD_STA_BAID_MASK); 26940f3a4e48SJohannes Berg case ADD_STA_IMMEDIATE_BA_FAILURE: 26950f3a4e48SJohannes Berg IWL_WARN(mvm, "RX BA Session refused by fw\n"); 26960f3a4e48SJohannes Berg return -ENOSPC; 26970f3a4e48SJohannes Berg default: 26980f3a4e48SJohannes Berg IWL_ERR(mvm, "RX BA Session failed %sing, status 0x%x\n", 26990f3a4e48SJohannes Berg start ? "start" : "stopp", status); 27000f3a4e48SJohannes Berg return -EIO; 27010f3a4e48SJohannes Berg } 27020f3a4e48SJohannes Berg } 27030f3a4e48SJohannes Berg 270497f70c56SJohannes Berg static int iwl_mvm_fw_baid_op_cmd(struct iwl_mvm *mvm, 270597f70c56SJohannes Berg struct iwl_mvm_sta *mvm_sta, 270697f70c56SJohannes Berg bool start, int tid, u16 ssn, 270797f70c56SJohannes Berg u16 buf_size, int baid) 270897f70c56SJohannes Berg { 270997f70c56SJohannes Berg struct iwl_rx_baid_cfg_cmd cmd = { 271097f70c56SJohannes Berg .action = start ? cpu_to_le32(IWL_RX_BAID_ACTION_ADD) : 271197f70c56SJohannes Berg cpu_to_le32(IWL_RX_BAID_ACTION_REMOVE), 271297f70c56SJohannes Berg }; 271397f70c56SJohannes Berg u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, RX_BAID_ALLOCATION_CONFIG_CMD); 271497f70c56SJohannes Berg int ret; 271597f70c56SJohannes Berg 271697f70c56SJohannes Berg BUILD_BUG_ON(sizeof(struct iwl_rx_baid_cfg_resp) != sizeof(baid)); 271797f70c56SJohannes Berg 271897f70c56SJohannes Berg if (start) { 271997f70c56SJohannes Berg cmd.alloc.sta_id_mask = cpu_to_le32(BIT(mvm_sta->sta_id)); 272097f70c56SJohannes Berg cmd.alloc.tid = tid; 272197f70c56SJohannes Berg cmd.alloc.ssn = cpu_to_le16(ssn); 272297f70c56SJohannes Berg cmd.alloc.win_size = cpu_to_le16(buf_size); 272397f70c56SJohannes Berg baid = -EIO; 272426de4c8bSJohannes Berg } else if (iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1) == 1) { 272526de4c8bSJohannes Berg cmd.remove_v1.baid = cpu_to_le32(baid); 272626de4c8bSJohannes Berg BUILD_BUG_ON(sizeof(cmd.remove_v1) > sizeof(cmd.remove)); 272797f70c56SJohannes Berg } else { 272826de4c8bSJohannes Berg cmd.remove.sta_id_mask = cpu_to_le32(BIT(mvm_sta->sta_id)); 272926de4c8bSJohannes Berg cmd.remove.tid = cpu_to_le32(tid); 273097f70c56SJohannes Berg } 273197f70c56SJohannes Berg 273297f70c56SJohannes Berg ret = iwl_mvm_send_cmd_pdu_status(mvm, cmd_id, sizeof(cmd), 273397f70c56SJohannes Berg &cmd, &baid); 273497f70c56SJohannes Berg if (ret) 273597f70c56SJohannes Berg return ret; 273697f70c56SJohannes Berg 273797f70c56SJohannes Berg if (!start) { 273897f70c56SJohannes Berg /* ignore firmware baid on remove */ 273997f70c56SJohannes Berg baid = 0; 274097f70c56SJohannes Berg } 274197f70c56SJohannes Berg 274297f70c56SJohannes Berg IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n", 274397f70c56SJohannes Berg start ? "start" : "stopp"); 274497f70c56SJohannes Berg 274597f70c56SJohannes Berg if (baid < 0 || baid >= ARRAY_SIZE(mvm->baid_map)) 274697f70c56SJohannes Berg return -EINVAL; 274797f70c56SJohannes Berg 274897f70c56SJohannes Berg return baid; 274997f70c56SJohannes Berg } 275097f70c56SJohannes Berg 275197f70c56SJohannes Berg static int iwl_mvm_fw_baid_op(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvm_sta, 275297f70c56SJohannes Berg bool start, int tid, u16 ssn, u16 buf_size, 275397f70c56SJohannes Berg int baid) 275497f70c56SJohannes Berg { 275597f70c56SJohannes Berg if (fw_has_capa(&mvm->fw->ucode_capa, 275697f70c56SJohannes Berg IWL_UCODE_TLV_CAPA_BAID_ML_SUPPORT)) 275797f70c56SJohannes Berg return iwl_mvm_fw_baid_op_cmd(mvm, mvm_sta, start, 275897f70c56SJohannes Berg tid, ssn, buf_size, baid); 275997f70c56SJohannes Berg 276097f70c56SJohannes Berg return iwl_mvm_fw_baid_op_sta(mvm, mvm_sta, start, 276197f70c56SJohannes Berg tid, ssn, buf_size); 276297f70c56SJohannes Berg } 276397f70c56SJohannes Berg 2764e705c121SKalle Valo int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2765514c3069SLuca Coelho int tid, u16 ssn, bool start, u16 buf_size, u16 timeout) 2766e705c121SKalle Valo { 2767e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 276810b2b201SSara Sharon struct iwl_mvm_baid_data *baid_data = NULL; 27690f3a4e48SJohannes Berg int ret, baid; 2770ded5ded3SEmmanuel Grumbach u32 max_ba_id_sessions = iwl_mvm_has_new_tx_api(mvm) ? IWL_MAX_BAID : 2771ded5ded3SEmmanuel Grumbach IWL_MAX_BAID_OLD; 2772e705c121SKalle Valo 2773e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2774e705c121SKalle Valo 2775ded5ded3SEmmanuel Grumbach if (start && mvm->rx_ba_sessions >= max_ba_id_sessions) { 2776e705c121SKalle Valo IWL_WARN(mvm, "Not enough RX BA SESSIONS\n"); 2777e705c121SKalle Valo return -ENOSPC; 2778e705c121SKalle Valo } 2779e705c121SKalle Valo 278010b2b201SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && start) { 2781dfdddd92SJohannes Berg u16 reorder_buf_size = buf_size * sizeof(baid_data->entries[0]); 2782dfdddd92SJohannes Berg 2783dfdddd92SJohannes Berg /* sparse doesn't like the __align() so don't check */ 2784dfdddd92SJohannes Berg #ifndef __CHECKER__ 2785dfdddd92SJohannes Berg /* 2786dfdddd92SJohannes Berg * The division below will be OK if either the cache line size 2787dfdddd92SJohannes Berg * can be divided by the entry size (ALIGN will round up) or if 2788dfdddd92SJohannes Berg * if the entry size can be divided by the cache line size, in 2789dfdddd92SJohannes Berg * which case the ALIGN() will do nothing. 2790dfdddd92SJohannes Berg */ 2791dfdddd92SJohannes Berg BUILD_BUG_ON(SMP_CACHE_BYTES % sizeof(baid_data->entries[0]) && 2792dfdddd92SJohannes Berg sizeof(baid_data->entries[0]) % SMP_CACHE_BYTES); 2793dfdddd92SJohannes Berg #endif 2794dfdddd92SJohannes Berg 2795dfdddd92SJohannes Berg /* 2796dfdddd92SJohannes Berg * Upward align the reorder buffer size to fill an entire cache 2797dfdddd92SJohannes Berg * line for each queue, to avoid sharing cache lines between 2798dfdddd92SJohannes Berg * different queues. 2799dfdddd92SJohannes Berg */ 2800dfdddd92SJohannes Berg reorder_buf_size = ALIGN(reorder_buf_size, SMP_CACHE_BYTES); 2801dfdddd92SJohannes Berg 280210b2b201SSara Sharon /* 280310b2b201SSara Sharon * Allocate here so if allocation fails we can bail out early 280410b2b201SSara Sharon * before starting the BA session in the firmware 280510b2b201SSara Sharon */ 2806b915c101SSara Sharon baid_data = kzalloc(sizeof(*baid_data) + 2807b915c101SSara Sharon mvm->trans->num_rx_queues * 2808dfdddd92SJohannes Berg reorder_buf_size, 2809b915c101SSara Sharon GFP_KERNEL); 281010b2b201SSara Sharon if (!baid_data) 281110b2b201SSara Sharon return -ENOMEM; 2812dfdddd92SJohannes Berg 2813dfdddd92SJohannes Berg /* 2814dfdddd92SJohannes Berg * This division is why we need the above BUILD_BUG_ON(), 2815dfdddd92SJohannes Berg * if that doesn't hold then this will not be right. 2816dfdddd92SJohannes Berg */ 2817dfdddd92SJohannes Berg baid_data->entries_per_queue = 2818dfdddd92SJohannes Berg reorder_buf_size / sizeof(baid_data->entries[0]); 281910b2b201SSara Sharon } 282010b2b201SSara Sharon 282197f70c56SJohannes Berg if (iwl_mvm_has_new_rx_api(mvm) && !start) { 282297f70c56SJohannes Berg baid = mvm_sta->tid_to_baid[tid]; 282397f70c56SJohannes Berg } else { 282497f70c56SJohannes Berg /* we don't really need it in this case */ 282597f70c56SJohannes Berg baid = -1; 282697f70c56SJohannes Berg } 282797f70c56SJohannes Berg 28283538c809SLuca Coelho /* Don't send command to remove (start=0) BAID during restart */ 28293538c809SLuca Coelho if (start || !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 283097f70c56SJohannes Berg baid = iwl_mvm_fw_baid_op(mvm, mvm_sta, start, tid, ssn, buf_size, 283197f70c56SJohannes Berg baid); 28323538c809SLuca Coelho 28330f3a4e48SJohannes Berg if (baid < 0) { 28340f3a4e48SJohannes Berg ret = baid; 283510b2b201SSara Sharon goto out_free; 2836e705c121SKalle Valo } 2837e705c121SKalle Valo 283810b2b201SSara Sharon if (start) { 2839e705c121SKalle Valo mvm->rx_ba_sessions++; 284010b2b201SSara Sharon 284110b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 284210b2b201SSara Sharon return 0; 284310b2b201SSara Sharon 284410b2b201SSara Sharon baid_data->baid = baid; 284510b2b201SSara Sharon baid_data->timeout = timeout; 284610b2b201SSara Sharon baid_data->last_rx = jiffies; 28478cef5344SKees Cook baid_data->rcu_ptr = &mvm->baid_map[baid]; 28488cef5344SKees Cook timer_setup(&baid_data->session_timer, 28498cef5344SKees Cook iwl_mvm_rx_agg_session_expired, 0); 285010b2b201SSara Sharon baid_data->mvm = mvm; 285110b2b201SSara Sharon baid_data->tid = tid; 285210b2b201SSara Sharon baid_data->sta_id = mvm_sta->sta_id; 285310b2b201SSara Sharon 285410b2b201SSara Sharon mvm_sta->tid_to_baid[tid] = baid; 285510b2b201SSara Sharon if (timeout) 285610b2b201SSara Sharon mod_timer(&baid_data->session_timer, 285710b2b201SSara Sharon TU_TO_EXP_TIME(timeout * 2)); 285810b2b201SSara Sharon 28593f1c4c58SSara Sharon iwl_mvm_init_reorder_buffer(mvm, baid_data, ssn, buf_size); 286010b2b201SSara Sharon /* 286110b2b201SSara Sharon * protect the BA data with RCU to cover a case where our 286210b2b201SSara Sharon * internal RX sync mechanism will timeout (not that it's 286310b2b201SSara Sharon * supposed to happen) and we will free the session data while 286410b2b201SSara Sharon * RX is being processed in parallel 286510b2b201SSara Sharon */ 286635263a03SSara Sharon IWL_DEBUG_HT(mvm, "Sta %d(%d) is assigned to BAID %d\n", 286735263a03SSara Sharon mvm_sta->sta_id, tid, baid); 286810b2b201SSara Sharon WARN_ON(rcu_access_pointer(mvm->baid_map[baid])); 286910b2b201SSara Sharon rcu_assign_pointer(mvm->baid_map[baid], baid_data); 287060dec523SSara Sharon } else { 28710f3a4e48SJohannes Berg baid = mvm_sta->tid_to_baid[tid]; 287210b2b201SSara Sharon 287360dec523SSara Sharon if (mvm->rx_ba_sessions > 0) 2874e705c121SKalle Valo /* check that restart flow didn't zero the counter */ 2875e705c121SKalle Valo mvm->rx_ba_sessions--; 287610b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 287710b2b201SSara Sharon return 0; 2878e705c121SKalle Valo 287910b2b201SSara Sharon if (WARN_ON(baid == IWL_RX_REORDER_DATA_INVALID_BAID)) 288010b2b201SSara Sharon return -EINVAL; 288110b2b201SSara Sharon 288210b2b201SSara Sharon baid_data = rcu_access_pointer(mvm->baid_map[baid]); 288310b2b201SSara Sharon if (WARN_ON(!baid_data)) 288410b2b201SSara Sharon return -EINVAL; 288510b2b201SSara Sharon 288610b2b201SSara Sharon /* synchronize all rx queues so we can safely delete */ 2887b915c101SSara Sharon iwl_mvm_free_reorder(mvm, baid_data); 2888292a089dSSteven Rostedt (Google) timer_shutdown_sync(&baid_data->session_timer); 288910b2b201SSara Sharon RCU_INIT_POINTER(mvm->baid_map[baid], NULL); 289010b2b201SSara Sharon kfree_rcu(baid_data, rcu_head); 289135263a03SSara Sharon IWL_DEBUG_HT(mvm, "BAID %d is free\n", baid); 28922438d430SJohannes Berg 28932438d430SJohannes Berg /* 28942438d430SJohannes Berg * After we've deleted it, do another queue sync 28952438d430SJohannes Berg * so if an IWL_MVM_RXQ_NSSN_SYNC was concurrently 28962438d430SJohannes Berg * running it won't find a new session in the old 28972438d430SJohannes Berg * BAID. It can find the NULL pointer for the BAID, 28982438d430SJohannes Berg * but we must not have it find a different session. 28992438d430SJohannes Berg */ 29002438d430SJohannes Berg iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, 29012438d430SJohannes Berg true, NULL, 0); 290210b2b201SSara Sharon } 290310b2b201SSara Sharon return 0; 290410b2b201SSara Sharon 290510b2b201SSara Sharon out_free: 290610b2b201SSara Sharon kfree(baid_data); 2907e705c121SKalle Valo return ret; 2908e705c121SKalle Valo } 2909e705c121SKalle Valo 29109794c64fSLiad Kaufman int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2911e705c121SKalle Valo int tid, u8 queue, bool start) 2912e705c121SKalle Valo { 2913e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2914e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 2915e705c121SKalle Valo int ret; 2916e705c121SKalle Valo u32 status; 2917e705c121SKalle Valo 2918e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2919e705c121SKalle Valo 2920e705c121SKalle Valo if (start) { 2921e705c121SKalle Valo mvm_sta->tfd_queue_msk |= BIT(queue); 2922e705c121SKalle Valo mvm_sta->tid_disable_agg &= ~BIT(tid); 2923e705c121SKalle Valo } else { 2924cf961e16SLiad Kaufman /* In DQA-mode the queue isn't removed on agg termination */ 2925e705c121SKalle Valo mvm_sta->tid_disable_agg |= BIT(tid); 2926e705c121SKalle Valo } 2927e705c121SKalle Valo 2928e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 2929e705c121SKalle Valo cmd.sta_id = mvm_sta->sta_id; 2930e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 2931bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) 2932bb49701bSSara Sharon cmd.modify_mask = STA_MODIFY_QUEUES; 2933bb49701bSSara Sharon cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 2934e705c121SKalle Valo cmd.tfd_queue_msk = cpu_to_le32(mvm_sta->tfd_queue_msk); 2935e705c121SKalle Valo cmd.tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg); 2936e705c121SKalle Valo 2937e705c121SKalle Valo status = ADD_STA_SUCCESS; 2938854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 2939854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 2940e705c121SKalle Valo &cmd, &status); 2941e705c121SKalle Valo if (ret) 2942e705c121SKalle Valo return ret; 2943e705c121SKalle Valo 2944837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 2945e705c121SKalle Valo case ADD_STA_SUCCESS: 2946e705c121SKalle Valo break; 2947e705c121SKalle Valo default: 2948e705c121SKalle Valo ret = -EIO; 2949e705c121SKalle Valo IWL_ERR(mvm, "TX BA Session failed %sing, status 0x%x\n", 2950e705c121SKalle Valo start ? "start" : "stopp", status); 2951e705c121SKalle Valo break; 2952e705c121SKalle Valo } 2953e705c121SKalle Valo 2954e705c121SKalle Valo return ret; 2955e705c121SKalle Valo } 2956e705c121SKalle Valo 2957e705c121SKalle Valo const u8 tid_to_mac80211_ac[] = { 2958e705c121SKalle Valo IEEE80211_AC_BE, 2959e705c121SKalle Valo IEEE80211_AC_BK, 2960e705c121SKalle Valo IEEE80211_AC_BK, 2961e705c121SKalle Valo IEEE80211_AC_BE, 2962e705c121SKalle Valo IEEE80211_AC_VI, 2963e705c121SKalle Valo IEEE80211_AC_VI, 2964e705c121SKalle Valo IEEE80211_AC_VO, 2965e705c121SKalle Valo IEEE80211_AC_VO, 29669794c64fSLiad Kaufman IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 2967e705c121SKalle Valo }; 2968e705c121SKalle Valo 2969e705c121SKalle Valo static const u8 tid_to_ucode_ac[] = { 2970e705c121SKalle Valo AC_BE, 2971e705c121SKalle Valo AC_BK, 2972e705c121SKalle Valo AC_BK, 2973e705c121SKalle Valo AC_BE, 2974e705c121SKalle Valo AC_VI, 2975e705c121SKalle Valo AC_VI, 2976e705c121SKalle Valo AC_VO, 2977e705c121SKalle Valo AC_VO, 2978e705c121SKalle Valo }; 2979e705c121SKalle Valo 2980e705c121SKalle Valo int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2981e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 *ssn) 2982e705c121SKalle Valo { 2983e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2984e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 2985dd32162dSLiad Kaufman u16 normalized_ssn; 2986b0d795a9SMordechay Goodstein u16 txq_id; 2987e705c121SKalle Valo int ret; 2988e705c121SKalle Valo 2989e705c121SKalle Valo if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT)) 2990e705c121SKalle Valo return -EINVAL; 2991e705c121SKalle Valo 2992bd800e41SNaftali Goldstein if (mvmsta->tid_data[tid].state != IWL_AGG_QUEUED && 2993bd800e41SNaftali Goldstein mvmsta->tid_data[tid].state != IWL_AGG_OFF) { 2994bd800e41SNaftali Goldstein IWL_ERR(mvm, 2995bd800e41SNaftali Goldstein "Start AGG when state is not IWL_AGG_QUEUED or IWL_AGG_OFF %d!\n", 2996e705c121SKalle Valo mvmsta->tid_data[tid].state); 2997e705c121SKalle Valo return -ENXIO; 2998e705c121SKalle Valo } 2999e705c121SKalle Valo 3000e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3001e705c121SKalle Valo 3002bd8f3fc6SLiad Kaufman if (mvmsta->tid_data[tid].txq_id == IWL_MVM_INVALID_QUEUE && 3003bd8f3fc6SLiad Kaufman iwl_mvm_has_new_tx_api(mvm)) { 3004bd8f3fc6SLiad Kaufman u8 ac = tid_to_mac80211_ac[tid]; 3005bd8f3fc6SLiad Kaufman 3006bd8f3fc6SLiad Kaufman ret = iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 3007bd8f3fc6SLiad Kaufman if (ret) 3008bd8f3fc6SLiad Kaufman return ret; 3009bd8f3fc6SLiad Kaufman } 3010bd8f3fc6SLiad Kaufman 3011e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3012e705c121SKalle Valo 3013cf961e16SLiad Kaufman /* 3014cf961e16SLiad Kaufman * Note the possible cases: 30154a6d2e52SAvraham Stern * 1. An enabled TXQ - TXQ needs to become agg'ed 30164a6d2e52SAvraham Stern * 2. The TXQ hasn't yet been enabled, so find a free one and mark 30174a6d2e52SAvraham Stern * it as reserved 3018cf961e16SLiad Kaufman */ 3019cf961e16SLiad Kaufman txq_id = mvmsta->tid_data[tid].txq_id; 302034e10860SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) { 3021b0d795a9SMordechay Goodstein ret = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 3022c8f54701SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 3023c8f54701SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 3024b0d795a9SMordechay Goodstein if (ret < 0) { 3025e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate agg queue\n"); 3026f3f240f9SJohannes Berg goto out; 3027e705c121SKalle Valo } 3028cf961e16SLiad Kaufman 3029b0d795a9SMordechay Goodstein txq_id = ret; 3030b0d795a9SMordechay Goodstein 3031cf961e16SLiad Kaufman /* TXQ hasn't yet been enabled, so mark it only as reserved */ 3032cf961e16SLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_RESERVED; 3033b0d795a9SMordechay Goodstein } else if (WARN_ON(txq_id >= IWL_MAX_HW_QUEUES)) { 3034b0d795a9SMordechay Goodstein ret = -ENXIO; 3035b0d795a9SMordechay Goodstein IWL_ERR(mvm, "tid_id %d out of range (0, %d)!\n", 3036b0d795a9SMordechay Goodstein tid, IWL_MAX_HW_QUEUES - 1); 3037b0d795a9SMordechay Goodstein goto out; 3038b0d795a9SMordechay Goodstein 30394a6d2e52SAvraham Stern } else if (unlikely(mvm->queue_info[txq_id].status == 30404a6d2e52SAvraham Stern IWL_MVM_QUEUE_SHARED)) { 30414a6d2e52SAvraham Stern ret = -ENXIO; 30424a6d2e52SAvraham Stern IWL_DEBUG_TX_QUEUES(mvm, 30434a6d2e52SAvraham Stern "Can't start tid %d agg on shared queue!\n", 30444a6d2e52SAvraham Stern tid); 3045f3f240f9SJohannes Berg goto out; 3046cf961e16SLiad Kaufman } 30479f9af3d7SLiad Kaufman 3048cf961e16SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 3049cf961e16SLiad Kaufman "AGG for tid %d will be on queue #%d\n", 3050cf961e16SLiad Kaufman tid, txq_id); 3051cf961e16SLiad Kaufman 3052e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 3053e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3054e705c121SKalle Valo tid_data->txq_id = txq_id; 3055e705c121SKalle Valo *ssn = tid_data->ssn; 3056e705c121SKalle Valo 3057e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 3058e705c121SKalle Valo "Start AGG: sta %d tid %d queue %d - ssn = %d, next_recl = %d\n", 3059e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, 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 = { 3098eea76c36SEmmanuel Grumbach .sta_id = mvmsta->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, 3170cf961e16SLiad Kaufman mvmsta->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); 3203ecaf71deSGregory Greenman mvmsta->lq_sta.rs_drv.lq.agg_frame_cnt_limit = mvmsta->max_agg_bufsize; 3204e705c121SKalle Valo 3205e705c121SKalle Valo IWL_DEBUG_HT(mvm, "Tx aggregation enabled on ra = %pM tid = %d\n", 3206e705c121SKalle Valo sta->addr, tid); 3207e705c121SKalle Valo 3208cd4d6b0bSGregory Greenman return iwl_mvm_send_lq_cmd(mvm, &mvmsta->lq_sta.rs_drv.lq); 3209e705c121SKalle Valo } 3210e705c121SKalle Valo 321134e10860SSara Sharon static void iwl_mvm_unreserve_agg_queue(struct iwl_mvm *mvm, 321234e10860SSara Sharon struct iwl_mvm_sta *mvmsta, 32134b387906SAvraham Stern struct iwl_mvm_tid_data *tid_data) 321434e10860SSara Sharon { 32154b387906SAvraham Stern u16 txq_id = tid_data->txq_id; 32164b387906SAvraham Stern 3217f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 3218f3f240f9SJohannes Berg 321934e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 322034e10860SSara Sharon return; 322134e10860SSara Sharon 322234e10860SSara Sharon /* 322334e10860SSara Sharon * The TXQ is marked as reserved only if no traffic came through yet 322434e10860SSara Sharon * This means no traffic has been sent on this TID (agg'd or not), so 322534e10860SSara Sharon * we no longer have use for the queue. Since it hasn't even been 322634e10860SSara Sharon * allocated through iwl_mvm_enable_txq, so we can just mark it back as 322734e10860SSara Sharon * free. 322834e10860SSara Sharon */ 32294b387906SAvraham Stern if (mvm->queue_info[txq_id].status == IWL_MVM_QUEUE_RESERVED) { 323034e10860SSara Sharon mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_FREE; 32314b387906SAvraham Stern tid_data->txq_id = IWL_MVM_INVALID_QUEUE; 32324b387906SAvraham Stern } 323334e10860SSara Sharon } 323434e10860SSara Sharon 3235e705c121SKalle Valo int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3236e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3237e705c121SKalle Valo { 3238e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3239e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3240e705c121SKalle Valo u16 txq_id; 3241e705c121SKalle Valo int err; 3242e705c121SKalle Valo 3243e705c121SKalle Valo /* 3244e705c121SKalle Valo * If mac80211 is cleaning its state, then say that we finished since 3245e705c121SKalle Valo * our state has been cleared anyway. 3246e705c121SKalle Valo */ 3247e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3248e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3249e705c121SKalle Valo return 0; 3250e705c121SKalle Valo } 3251e705c121SKalle Valo 3252e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3253e705c121SKalle Valo 3254e705c121SKalle Valo txq_id = tid_data->txq_id; 3255e705c121SKalle Valo 3256e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Stop AGG: sta %d tid %d q %d state %d\n", 3257e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 3258e705c121SKalle Valo 3259e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3260e705c121SKalle Valo 32614b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3262e705c121SKalle Valo 3263e705c121SKalle Valo switch (tid_data->state) { 3264e705c121SKalle Valo case IWL_AGG_ON: 3265e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3266e705c121SKalle Valo 3267e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 3268e705c121SKalle Valo "ssn = %d, next_recl = %d\n", 3269e705c121SKalle Valo tid_data->ssn, tid_data->next_reclaimed); 3270e705c121SKalle Valo 3271e705c121SKalle Valo tid_data->ssn = 0xffff; 3272e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3273e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3274e705c121SKalle Valo 3275e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3276e705c121SKalle Valo 3277e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3278e705c121SKalle Valo return 0; 3279e705c121SKalle Valo case IWL_AGG_STARTING: 3280e705c121SKalle Valo case IWL_EMPTYING_HW_QUEUE_ADDBA: 3281e705c121SKalle Valo /* 3282e705c121SKalle Valo * The agg session has been stopped before it was set up. This 3283e705c121SKalle Valo * can happen when the AddBA timer times out for example. 3284e705c121SKalle Valo */ 3285e705c121SKalle Valo 3286e705c121SKalle Valo /* No barriers since we are under mutex */ 3287e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3288e705c121SKalle Valo 3289e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3290e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3291e705c121SKalle Valo err = 0; 3292e705c121SKalle Valo break; 3293e705c121SKalle Valo default: 3294e705c121SKalle Valo IWL_ERR(mvm, 3295e705c121SKalle Valo "Stopping AGG while state not ON or starting for %d on %d (%d)\n", 3296e705c121SKalle Valo mvmsta->sta_id, tid, tid_data->state); 3297e705c121SKalle Valo IWL_ERR(mvm, 3298e705c121SKalle Valo "\ttid_data->txq_id = %d\n", tid_data->txq_id); 3299e705c121SKalle Valo err = -EINVAL; 3300e705c121SKalle Valo } 3301e705c121SKalle Valo 3302e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3303e705c121SKalle Valo 3304e705c121SKalle Valo return err; 3305e705c121SKalle Valo } 3306e705c121SKalle Valo 3307e705c121SKalle Valo int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3308e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3309e705c121SKalle Valo { 3310e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3311e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3312e705c121SKalle Valo u16 txq_id; 3313e705c121SKalle Valo enum iwl_mvm_agg_state old_state; 3314e705c121SKalle Valo 3315e705c121SKalle Valo /* 3316e705c121SKalle Valo * First set the agg state to OFF to avoid calling 3317e705c121SKalle Valo * ieee80211_stop_tx_ba_cb in iwl_mvm_check_ratid_empty. 3318e705c121SKalle Valo */ 3319e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3320e705c121SKalle Valo txq_id = tid_data->txq_id; 3321e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Flush AGG: sta %d tid %d q %d state %d\n", 3322e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 3323e705c121SKalle Valo old_state = tid_data->state; 3324e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3325e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3326e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3327e705c121SKalle Valo 33284b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3329e705c121SKalle Valo 3330e705c121SKalle Valo if (old_state >= IWL_AGG_ON) { 3331e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, true); 3332d167e81aSMordechai Goodstein 3333d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) { 3334d167e81aSMordechai Goodstein if (iwl_mvm_flush_sta_tids(mvm, mvmsta->sta_id, 3335d4e3a341SMordechay Goodstein BIT(tid))) 3336d167e81aSMordechai Goodstein IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 3337d167e81aSMordechai Goodstein iwl_trans_wait_txq_empty(mvm->trans, txq_id); 3338d167e81aSMordechai Goodstein } else { 3339d4e3a341SMordechay Goodstein if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id))) 3340e705c121SKalle Valo IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 33410b90964aSSara Sharon iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(txq_id)); 3342d167e81aSMordechai Goodstein } 3343d6d517b7SSara Sharon 3344e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, false); 3345e705c121SKalle Valo 3346e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3347e705c121SKalle Valo } 3348e705c121SKalle Valo 3349e705c121SKalle Valo return 0; 3350e705c121SKalle Valo } 3351e705c121SKalle Valo 3352e705c121SKalle Valo static int iwl_mvm_set_fw_key_idx(struct iwl_mvm *mvm) 3353e705c121SKalle Valo { 3354e705c121SKalle Valo int i, max = -1, max_offs = -1; 3355e705c121SKalle Valo 3356e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3357e705c121SKalle Valo 3358e705c121SKalle Valo /* Pick the unused key offset with the highest 'deleted' 3359e705c121SKalle Valo * counter. Every time a key is deleted, all the counters 3360e705c121SKalle Valo * are incremented and the one that was just deleted is 3361e705c121SKalle Valo * reset to zero. Thus, the highest counter is the one 3362e705c121SKalle Valo * that was deleted longest ago. Pick that one. 3363e705c121SKalle Valo */ 3364e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3365e705c121SKalle Valo if (test_bit(i, mvm->fw_key_table)) 3366e705c121SKalle Valo continue; 3367e705c121SKalle Valo if (mvm->fw_key_deleted[i] > max) { 3368e705c121SKalle Valo max = mvm->fw_key_deleted[i]; 3369e705c121SKalle Valo max_offs = i; 3370e705c121SKalle Valo } 3371e705c121SKalle Valo } 3372e705c121SKalle Valo 3373e705c121SKalle Valo if (max_offs < 0) 3374e705c121SKalle Valo return STA_KEY_IDX_INVALID; 3375e705c121SKalle Valo 3376e705c121SKalle Valo return max_offs; 3377e705c121SKalle Valo } 3378e705c121SKalle Valo 33795f7a1847SJohannes Berg static struct iwl_mvm_sta *iwl_mvm_get_key_sta(struct iwl_mvm *mvm, 33804615fd15SEmmanuel Grumbach struct ieee80211_vif *vif, 3381e705c121SKalle Valo struct ieee80211_sta *sta) 3382e705c121SKalle Valo { 3383e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3384e705c121SKalle Valo 33855f7a1847SJohannes Berg if (sta) 33865f7a1847SJohannes Berg return iwl_mvm_sta_from_mac80211(sta); 3387e705c121SKalle Valo 3388e705c121SKalle Valo /* 3389e705c121SKalle Valo * The device expects GTKs for station interfaces to be 3390e705c121SKalle Valo * installed as GTKs for the AP station. If we have no 3391e705c121SKalle Valo * station ID, then use AP's station ID. 3392e705c121SKalle Valo */ 3393e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 33940ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 33954615fd15SEmmanuel Grumbach u8 sta_id = mvmvif->ap_sta_id; 33964615fd15SEmmanuel Grumbach 33977d6a1ab6SEmmanuel Grumbach sta = rcu_dereference_check(mvm->fw_id_to_mac_id[sta_id], 33987d6a1ab6SEmmanuel Grumbach lockdep_is_held(&mvm->mutex)); 33997d6a1ab6SEmmanuel Grumbach 34004615fd15SEmmanuel Grumbach /* 34014615fd15SEmmanuel Grumbach * It is possible that the 'sta' parameter is NULL, 34024615fd15SEmmanuel Grumbach * for example when a GTK is removed - the sta_id will then 34034615fd15SEmmanuel Grumbach * be the AP ID, and no station was passed by mac80211. 34044615fd15SEmmanuel Grumbach */ 34057d6a1ab6SEmmanuel Grumbach if (IS_ERR_OR_NULL(sta)) 34067d6a1ab6SEmmanuel Grumbach return NULL; 34077d6a1ab6SEmmanuel Grumbach 34087d6a1ab6SEmmanuel Grumbach return iwl_mvm_sta_from_mac80211(sta); 34094615fd15SEmmanuel Grumbach } 3410e705c121SKalle Valo 34115f7a1847SJohannes Berg return NULL; 3412e705c121SKalle Valo } 3413e705c121SKalle Valo 3414a6dfbd04SJohannes Berg static int iwl_mvm_pn_cmp(const u8 *pn1, const u8 *pn2, int len) 3415a6dfbd04SJohannes Berg { 3416a6dfbd04SJohannes Berg int i; 3417a6dfbd04SJohannes Berg 3418a6dfbd04SJohannes Berg for (i = len - 1; i >= 0; i--) { 3419a6dfbd04SJohannes Berg if (pn1[i] > pn2[i]) 3420a6dfbd04SJohannes Berg return 1; 3421a6dfbd04SJohannes Berg if (pn1[i] < pn2[i]) 3422a6dfbd04SJohannes Berg return -1; 3423a6dfbd04SJohannes Berg } 3424a6dfbd04SJohannes Berg 3425a6dfbd04SJohannes Berg return 0; 3426a6dfbd04SJohannes Berg } 3427a6dfbd04SJohannes Berg 3428e705c121SKalle Valo static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm, 342985aeb58cSDavid Spinadel u32 sta_id, 343045c458b4SSara Sharon struct ieee80211_key_conf *key, bool mcast, 34314615fd15SEmmanuel Grumbach u32 tkip_iv32, u16 *tkip_p1k, u32 cmd_flags, 34324883145aSEmmanuel Grumbach u8 key_offset, bool mfp) 3433e705c121SKalle Valo { 343445c458b4SSara Sharon union { 343545c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 343645c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd cmd; 343745c458b4SSara Sharon } u = {}; 3438e705c121SKalle Valo __le16 key_flags; 3439e705c121SKalle Valo int ret; 3440e705c121SKalle Valo u32 status; 3441e705c121SKalle Valo u16 keyidx; 344245c458b4SSara Sharon u64 pn = 0; 344345c458b4SSara Sharon int i, size; 344445c458b4SSara Sharon bool new_api = fw_has_api(&mvm->fw->ucode_capa, 344545c458b4SSara Sharon IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 3446971cbe50SJohannes Berg int api_ver = iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA_KEY, 3447199d895fSJohannes Berg new_api ? 2 : 1); 3448e705c121SKalle Valo 344985aeb58cSDavid Spinadel if (sta_id == IWL_MVM_INVALID_STA) 345085aeb58cSDavid Spinadel return -EINVAL; 345185aeb58cSDavid Spinadel 345245c458b4SSara Sharon keyidx = (key->keyidx << STA_KEY_FLG_KEYID_POS) & 3453e705c121SKalle Valo STA_KEY_FLG_KEYID_MSK; 3454e705c121SKalle Valo key_flags = cpu_to_le16(keyidx); 3455e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_KEY_MAP); 3456e705c121SKalle Valo 345745c458b4SSara Sharon switch (key->cipher) { 3458e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 3459e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_TKIP); 3460199d895fSJohannes Berg if (api_ver >= 2) { 346145c458b4SSara Sharon memcpy((void *)&u.cmd.tx_mic_key, 346245c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], 346345c458b4SSara Sharon IWL_MIC_KEY_SIZE); 346445c458b4SSara Sharon 346545c458b4SSara Sharon memcpy((void *)&u.cmd.rx_mic_key, 346645c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], 346745c458b4SSara Sharon IWL_MIC_KEY_SIZE); 346845c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 346945c458b4SSara Sharon 347045c458b4SSara Sharon } else { 347145c458b4SSara Sharon u.cmd_v1.tkip_rx_tsc_byte2 = tkip_iv32; 3472e705c121SKalle Valo for (i = 0; i < 5; i++) 347345c458b4SSara Sharon u.cmd_v1.tkip_rx_ttak[i] = 347445c458b4SSara Sharon cpu_to_le16(tkip_p1k[i]); 347545c458b4SSara Sharon } 347645c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3477e705c121SKalle Valo break; 3478e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 3479e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_CCM); 348045c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3481199d895fSJohannes Berg if (api_ver >= 2) 348245c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 3483e705c121SKalle Valo break; 3484e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 3485e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_13BYTES); 34865a2abdcaSGustavo A. R. Silva fallthrough; 3487e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 3488e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP); 348945c458b4SSara Sharon memcpy(u.cmd.common.key + 3, key->key, key->keylen); 3490e705c121SKalle Valo break; 34912a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 34922a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_KEY_32BYTES); 34935a2abdcaSGustavo A. R. Silva fallthrough; 34942a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 34952a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_GCMP); 349645c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3497199d895fSJohannes Berg if (api_ver >= 2) 349845c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 34992a53d166SAyala Beker break; 3500e705c121SKalle Valo default: 3501e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_EXT); 350245c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3503e705c121SKalle Valo } 3504e705c121SKalle Valo 3505e705c121SKalle Valo if (mcast) 3506e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 35074883145aSEmmanuel Grumbach if (mfp) 35084883145aSEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MFP); 3509e705c121SKalle Valo 351045c458b4SSara Sharon u.cmd.common.key_offset = key_offset; 351145c458b4SSara Sharon u.cmd.common.key_flags = key_flags; 351285aeb58cSDavid Spinadel u.cmd.common.sta_id = sta_id; 351345c458b4SSara Sharon 3514a6dfbd04SJohannes Berg if (key->cipher == WLAN_CIPHER_SUITE_TKIP) 3515a6dfbd04SJohannes Berg i = 0; 3516a6dfbd04SJohannes Berg else 3517a6dfbd04SJohannes Berg i = -1; 3518a6dfbd04SJohannes Berg 3519a6dfbd04SJohannes Berg for (; i < IEEE80211_NUM_TIDS; i++) { 3520a6dfbd04SJohannes Berg struct ieee80211_key_seq seq = {}; 3521a6dfbd04SJohannes Berg u8 _rx_pn[IEEE80211_MAX_PN_LEN] = {}, *rx_pn = _rx_pn; 3522a6dfbd04SJohannes Berg int rx_pn_len = 8; 3523199d895fSJohannes Berg /* there's a hole at 2/3 in FW format depending on version */ 3524199d895fSJohannes Berg int hole = api_ver >= 3 ? 0 : 2; 3525a6dfbd04SJohannes Berg 3526a6dfbd04SJohannes Berg ieee80211_get_key_rx_seq(key, i, &seq); 3527a6dfbd04SJohannes Berg 3528a6dfbd04SJohannes Berg if (key->cipher == WLAN_CIPHER_SUITE_TKIP) { 3529a6dfbd04SJohannes Berg rx_pn[0] = seq.tkip.iv16; 3530a6dfbd04SJohannes Berg rx_pn[1] = seq.tkip.iv16 >> 8; 3531199d895fSJohannes Berg rx_pn[2 + hole] = seq.tkip.iv32; 3532199d895fSJohannes Berg rx_pn[3 + hole] = seq.tkip.iv32 >> 8; 3533199d895fSJohannes Berg rx_pn[4 + hole] = seq.tkip.iv32 >> 16; 3534199d895fSJohannes Berg rx_pn[5 + hole] = seq.tkip.iv32 >> 24; 3535a6dfbd04SJohannes Berg } else if (key_flags & cpu_to_le16(STA_KEY_FLG_EXT)) { 3536a6dfbd04SJohannes Berg rx_pn = seq.hw.seq; 3537a6dfbd04SJohannes Berg rx_pn_len = seq.hw.seq_len; 3538a6dfbd04SJohannes Berg } else { 3539a6dfbd04SJohannes Berg rx_pn[0] = seq.ccmp.pn[0]; 3540a6dfbd04SJohannes Berg rx_pn[1] = seq.ccmp.pn[1]; 3541199d895fSJohannes Berg rx_pn[2 + hole] = seq.ccmp.pn[2]; 3542199d895fSJohannes Berg rx_pn[3 + hole] = seq.ccmp.pn[3]; 3543199d895fSJohannes Berg rx_pn[4 + hole] = seq.ccmp.pn[4]; 3544199d895fSJohannes Berg rx_pn[5 + hole] = seq.ccmp.pn[5]; 3545a6dfbd04SJohannes Berg } 3546a6dfbd04SJohannes Berg 3547a6dfbd04SJohannes Berg if (iwl_mvm_pn_cmp(rx_pn, (u8 *)&u.cmd.common.rx_secur_seq_cnt, 3548a6dfbd04SJohannes Berg rx_pn_len) > 0) 3549a6dfbd04SJohannes Berg memcpy(&u.cmd.common.rx_secur_seq_cnt, rx_pn, 3550a6dfbd04SJohannes Berg rx_pn_len); 3551a6dfbd04SJohannes Berg } 3552a6dfbd04SJohannes Berg 3553199d895fSJohannes Berg if (api_ver >= 2) { 355445c458b4SSara Sharon u.cmd.transmit_seq_cnt = cpu_to_le64(pn); 355545c458b4SSara Sharon size = sizeof(u.cmd); 355645c458b4SSara Sharon } else { 355745c458b4SSara Sharon size = sizeof(u.cmd_v1); 355845c458b4SSara Sharon } 3559e705c121SKalle Valo 3560e705c121SKalle Valo status = ADD_STA_SUCCESS; 3561e705c121SKalle Valo if (cmd_flags & CMD_ASYNC) 356245c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA_KEY, CMD_ASYNC, size, 356345c458b4SSara Sharon &u.cmd); 3564e705c121SKalle Valo else 356545c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, 356645c458b4SSara Sharon &u.cmd, &status); 3567e705c121SKalle Valo 3568e705c121SKalle Valo switch (status) { 3569e705c121SKalle Valo case ADD_STA_SUCCESS: 3570e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "MODIFY_STA: set dynamic key passed\n"); 3571e705c121SKalle Valo break; 3572e705c121SKalle Valo default: 3573e705c121SKalle Valo ret = -EIO; 3574e705c121SKalle Valo IWL_ERR(mvm, "MODIFY_STA: set dynamic key failed\n"); 3575e705c121SKalle Valo break; 3576e705c121SKalle Valo } 3577e705c121SKalle Valo 3578e705c121SKalle Valo return ret; 3579e705c121SKalle Valo } 3580e705c121SKalle Valo 3581e705c121SKalle Valo static int iwl_mvm_send_sta_igtk(struct iwl_mvm *mvm, 3582e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3583e705c121SKalle Valo u8 sta_id, bool remove_key) 3584e705c121SKalle Valo { 3585e705c121SKalle Valo struct iwl_mvm_mgmt_mcast_key_cmd igtk_cmd = {}; 3586e705c121SKalle Valo 3587e705c121SKalle Valo /* verify the key details match the required command's expectations */ 35888e160ab8SAyala Beker if (WARN_ON((keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) || 3589b1fdc250SJohannes Berg (keyconf->keyidx != 4 && keyconf->keyidx != 5 && 3590b1fdc250SJohannes Berg keyconf->keyidx != 6 && keyconf->keyidx != 7) || 35918e160ab8SAyala Beker (keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC && 35928e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_128 && 35938e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_256))) 35948e160ab8SAyala Beker return -EINVAL; 35958e160ab8SAyala Beker 35968e160ab8SAyala Beker if (WARN_ON(!iwl_mvm_has_new_rx_api(mvm) && 35978e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC)) 3598e705c121SKalle Valo return -EINVAL; 3599e705c121SKalle Valo 3600e705c121SKalle Valo igtk_cmd.key_id = cpu_to_le32(keyconf->keyidx); 3601e705c121SKalle Valo igtk_cmd.sta_id = cpu_to_le32(sta_id); 3602e705c121SKalle Valo 3603e705c121SKalle Valo if (remove_key) { 3604197288d5SLuca Coelho /* This is a valid situation for IGTK */ 3605197288d5SLuca Coelho if (sta_id == IWL_MVM_INVALID_STA) 3606197288d5SLuca Coelho return 0; 3607197288d5SLuca Coelho 3608e705c121SKalle Valo igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_NOT_VALID); 3609e705c121SKalle Valo } else { 3610e705c121SKalle Valo struct ieee80211_key_seq seq; 3611e705c121SKalle Valo const u8 *pn; 3612e705c121SKalle Valo 3613aa950524SAyala Beker switch (keyconf->cipher) { 3614aa950524SAyala Beker case WLAN_CIPHER_SUITE_AES_CMAC: 3615aa950524SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_CCM); 3616aa950524SAyala Beker break; 36178e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_128: 36188e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_256: 36198e160ab8SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_GCMP); 36208e160ab8SAyala Beker break; 3621aa950524SAyala Beker default: 3622aa950524SAyala Beker return -EINVAL; 3623aa950524SAyala Beker } 3624aa950524SAyala Beker 36258e160ab8SAyala Beker memcpy(igtk_cmd.igtk, keyconf->key, keyconf->keylen); 36268e160ab8SAyala Beker if (keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 36278e160ab8SAyala Beker igtk_cmd.ctrl_flags |= 36288e160ab8SAyala Beker cpu_to_le32(STA_KEY_FLG_KEY_32BYTES); 3629e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3630e705c121SKalle Valo pn = seq.aes_cmac.pn; 3631e705c121SKalle Valo igtk_cmd.receive_seq_cnt = cpu_to_le64(((u64) pn[5] << 0) | 3632e705c121SKalle Valo ((u64) pn[4] << 8) | 3633e705c121SKalle Valo ((u64) pn[3] << 16) | 3634e705c121SKalle Valo ((u64) pn[2] << 24) | 3635e705c121SKalle Valo ((u64) pn[1] << 32) | 3636e705c121SKalle Valo ((u64) pn[0] << 40)); 3637e705c121SKalle Valo } 3638e705c121SKalle Valo 3639b1fdc250SJohannes Berg IWL_DEBUG_INFO(mvm, "%s %sIGTK (%d) for sta %u\n", 3640e705c121SKalle Valo remove_key ? "removing" : "installing", 3641b1fdc250SJohannes Berg keyconf->keyidx >= 6 ? "B" : "", 3642b1fdc250SJohannes Berg keyconf->keyidx, igtk_cmd.sta_id); 3643e705c121SKalle Valo 36448e160ab8SAyala Beker if (!iwl_mvm_has_new_rx_api(mvm)) { 36458e160ab8SAyala Beker struct iwl_mvm_mgmt_mcast_key_cmd_v1 igtk_cmd_v1 = { 36468e160ab8SAyala Beker .ctrl_flags = igtk_cmd.ctrl_flags, 36478e160ab8SAyala Beker .key_id = igtk_cmd.key_id, 36488e160ab8SAyala Beker .sta_id = igtk_cmd.sta_id, 36498e160ab8SAyala Beker .receive_seq_cnt = igtk_cmd.receive_seq_cnt 36508e160ab8SAyala Beker }; 36518e160ab8SAyala Beker 36528e160ab8SAyala Beker memcpy(igtk_cmd_v1.igtk, igtk_cmd.igtk, 36538e160ab8SAyala Beker ARRAY_SIZE(igtk_cmd_v1.igtk)); 36548e160ab8SAyala Beker return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 36558e160ab8SAyala Beker sizeof(igtk_cmd_v1), &igtk_cmd_v1); 36568e160ab8SAyala Beker } 3657e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 3658e705c121SKalle Valo sizeof(igtk_cmd), &igtk_cmd); 3659e705c121SKalle Valo } 3660e705c121SKalle Valo 3661e705c121SKalle Valo 3662e705c121SKalle Valo static inline u8 *iwl_mvm_get_mac_addr(struct iwl_mvm *mvm, 3663e705c121SKalle Valo struct ieee80211_vif *vif, 3664e705c121SKalle Valo struct ieee80211_sta *sta) 3665e705c121SKalle Valo { 3666e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3667e705c121SKalle Valo 3668e705c121SKalle Valo if (sta) 3669e705c121SKalle Valo return sta->addr; 3670e705c121SKalle Valo 3671e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 36720ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 3673e705c121SKalle Valo u8 sta_id = mvmvif->ap_sta_id; 3674e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 3675e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3676e705c121SKalle Valo return sta->addr; 3677e705c121SKalle Valo } 3678e705c121SKalle Valo 3679e705c121SKalle Valo 3680e705c121SKalle Valo return NULL; 3681e705c121SKalle Valo } 3682e705c121SKalle Valo 3683e705c121SKalle Valo static int __iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3684e705c121SKalle Valo struct ieee80211_vif *vif, 3685e705c121SKalle Valo struct ieee80211_sta *sta, 3686e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 36874615fd15SEmmanuel Grumbach u8 key_offset, 3688e705c121SKalle Valo bool mcast) 3689e705c121SKalle Valo { 3690e705c121SKalle Valo const u8 *addr; 3691e705c121SKalle Valo struct ieee80211_key_seq seq; 3692e705c121SKalle Valo u16 p1k[5]; 369385aeb58cSDavid Spinadel u32 sta_id; 36944883145aSEmmanuel Grumbach bool mfp = false; 369585aeb58cSDavid Spinadel 369685aeb58cSDavid Spinadel if (sta) { 369785aeb58cSDavid Spinadel struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 369885aeb58cSDavid Spinadel 369985aeb58cSDavid Spinadel sta_id = mvm_sta->sta_id; 37004883145aSEmmanuel Grumbach mfp = sta->mfp; 370185aeb58cSDavid Spinadel } else if (vif->type == NL80211_IFTYPE_AP && 370285aeb58cSDavid Spinadel !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { 370385aeb58cSDavid Spinadel struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 370485aeb58cSDavid Spinadel 370585aeb58cSDavid Spinadel sta_id = mvmvif->mcast_sta.sta_id; 370685aeb58cSDavid Spinadel } else { 370785aeb58cSDavid Spinadel IWL_ERR(mvm, "Failed to find station id\n"); 370885aeb58cSDavid Spinadel return -EINVAL; 370985aeb58cSDavid Spinadel } 3710e705c121SKalle Valo 371195a62c33SJohannes Berg if (keyconf->cipher == WLAN_CIPHER_SUITE_TKIP) { 3712e705c121SKalle Valo addr = iwl_mvm_get_mac_addr(mvm, vif, sta); 3713e705c121SKalle Valo /* get phase 1 key from mac80211 */ 3714e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3715e705c121SKalle Valo ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k); 371695a62c33SJohannes Berg 371795a62c33SJohannes Berg return iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 37184883145aSEmmanuel Grumbach seq.tkip.iv32, p1k, 0, key_offset, 37194883145aSEmmanuel Grumbach mfp); 3720e705c121SKalle Valo } 3721e705c121SKalle Valo 372295a62c33SJohannes Berg return iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 372395a62c33SJohannes Berg 0, NULL, 0, key_offset, mfp); 3724e705c121SKalle Valo } 3725e705c121SKalle Valo 3726e705c121SKalle Valo int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3727e705c121SKalle Valo struct ieee80211_vif *vif, 3728e705c121SKalle Valo struct ieee80211_sta *sta, 3729e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 37304615fd15SEmmanuel Grumbach u8 key_offset) 3731e705c121SKalle Valo { 3732e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 37335f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 373485aeb58cSDavid Spinadel u8 sta_id = IWL_MVM_INVALID_STA; 3735e705c121SKalle Valo int ret; 3736e705c121SKalle Valo static const u8 __maybe_unused zero_addr[ETH_ALEN] = {0}; 3737e705c121SKalle Valo 3738e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3739e705c121SKalle Valo 374085aeb58cSDavid Spinadel if (vif->type != NL80211_IFTYPE_AP || 374185aeb58cSDavid Spinadel keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) { 3742e705c121SKalle Valo /* Get the station id from the mvm local station table */ 37435f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 37445f7a1847SJohannes Berg if (!mvm_sta) { 37455f7a1847SJohannes Berg IWL_ERR(mvm, "Failed to find station\n"); 3746e705c121SKalle Valo return -EINVAL; 3747e705c121SKalle Valo } 37485f7a1847SJohannes Berg sta_id = mvm_sta->sta_id; 3749e705c121SKalle Valo 3750e705c121SKalle Valo /* 3751e705c121SKalle Valo * It is possible that the 'sta' parameter is NULL, and thus 375285aeb58cSDavid Spinadel * there is a need to retrieve the sta from the local station 375385aeb58cSDavid Spinadel * table. 3754e705c121SKalle Valo */ 3755e705c121SKalle Valo if (!sta) { 375685aeb58cSDavid Spinadel sta = rcu_dereference_protected( 375785aeb58cSDavid Spinadel mvm->fw_id_to_mac_id[sta_id], 3758e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3759e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) { 3760e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 3761e705c121SKalle Valo return -EINVAL; 3762e705c121SKalle Valo } 3763e705c121SKalle Valo } 3764e705c121SKalle Valo 3765e705c121SKalle Valo if (WARN_ON_ONCE(iwl_mvm_sta_from_mac80211(sta)->vif != vif)) 3766e705c121SKalle Valo return -EINVAL; 3767e829b17cSBeni Lev } else { 3768e829b17cSBeni Lev struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3769e829b17cSBeni Lev 3770e829b17cSBeni Lev sta_id = mvmvif->mcast_sta.sta_id; 3771e829b17cSBeni Lev } 3772e829b17cSBeni Lev 3773e829b17cSBeni Lev if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3774e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3775e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) { 3776e829b17cSBeni Lev ret = iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, false); 3777e829b17cSBeni Lev goto end; 377885aeb58cSDavid Spinadel } 3779e705c121SKalle Valo 37804615fd15SEmmanuel Grumbach /* If the key_offset is not pre-assigned, we need to find a 37814615fd15SEmmanuel Grumbach * new offset to use. In normal cases, the offset is not 37824615fd15SEmmanuel Grumbach * pre-assigned, but during HW_RESTART we want to reuse the 37834615fd15SEmmanuel Grumbach * same indices, so we pass them when this function is called. 37844615fd15SEmmanuel Grumbach * 37854615fd15SEmmanuel Grumbach * In D3 entry, we need to hardcoded the indices (because the 37864615fd15SEmmanuel Grumbach * firmware hardcodes the PTK offset to 0). In this case, we 37874615fd15SEmmanuel Grumbach * need to make sure we don't overwrite the hw_key_idx in the 37884615fd15SEmmanuel Grumbach * keyconf structure, because otherwise we cannot configure 37894615fd15SEmmanuel Grumbach * the original ones back when resuming. 3790e705c121SKalle Valo */ 37914615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) { 37924615fd15SEmmanuel Grumbach key_offset = iwl_mvm_set_fw_key_idx(mvm); 37934615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) 3794e705c121SKalle Valo return -ENOSPC; 37954615fd15SEmmanuel Grumbach keyconf->hw_key_idx = key_offset; 3796e705c121SKalle Valo } 3797e705c121SKalle Valo 37984615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, key_offset, mcast); 37999c3deeb5SLuca Coelho if (ret) 3800e705c121SKalle Valo goto end; 3801e705c121SKalle Valo 3802e705c121SKalle Valo /* 3803e705c121SKalle Valo * For WEP, the same key is used for multicast and unicast. Upload it 3804e705c121SKalle Valo * again, using the same key offset, and now pointing the other one 3805e705c121SKalle Valo * to the same key slot (offset). 3806e705c121SKalle Valo * If this fails, remove the original as well. 3807e705c121SKalle Valo */ 380885aeb58cSDavid Spinadel if ((keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 380985aeb58cSDavid Spinadel keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) && 381085aeb58cSDavid Spinadel sta) { 38114615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, 38124615fd15SEmmanuel Grumbach key_offset, !mcast); 3813e705c121SKalle Valo if (ret) { 3814e705c121SKalle Valo __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 38159c3deeb5SLuca Coelho goto end; 3816e705c121SKalle Valo } 3817e705c121SKalle Valo } 3818e705c121SKalle Valo 38199c3deeb5SLuca Coelho __set_bit(key_offset, mvm->fw_key_table); 38209c3deeb5SLuca Coelho 3821e705c121SKalle Valo end: 3822e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "key: cipher=%x len=%d idx=%d sta=%pM ret=%d\n", 3823e705c121SKalle Valo keyconf->cipher, keyconf->keylen, keyconf->keyidx, 3824e705c121SKalle Valo sta ? sta->addr : zero_addr, ret); 3825e705c121SKalle Valo return ret; 3826e705c121SKalle Valo } 3827e705c121SKalle Valo 3828e705c121SKalle Valo int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, 3829e705c121SKalle Valo struct ieee80211_vif *vif, 3830e705c121SKalle Valo struct ieee80211_sta *sta, 3831e705c121SKalle Valo struct ieee80211_key_conf *keyconf) 3832e705c121SKalle Valo { 3833e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 38345f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 38350ae98812SSara Sharon u8 sta_id = IWL_MVM_INVALID_STA; 3836e705c121SKalle Valo int ret, i; 3837e705c121SKalle Valo 3838e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3839e705c121SKalle Valo 38405f7a1847SJohannes Berg /* Get the station from the mvm local station table */ 38415f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 384271793b7dSLuca Coelho if (mvm_sta) 3843cd4d23c1SIlan Peer sta_id = mvm_sta->sta_id; 384485aeb58cSDavid Spinadel else if (!sta && vif->type == NL80211_IFTYPE_AP && mcast) 384585aeb58cSDavid Spinadel sta_id = iwl_mvm_vif_from_mac80211(vif)->mcast_sta.sta_id; 384685aeb58cSDavid Spinadel 3847e705c121SKalle Valo 3848e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "mvm remove dynamic key: idx=%d sta=%d\n", 3849e705c121SKalle Valo keyconf->keyidx, sta_id); 3850e705c121SKalle Valo 3851197288d5SLuca Coelho if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 38528e160ab8SAyala Beker keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3853197288d5SLuca Coelho keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 3854e705c121SKalle Valo return iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, true); 3855e705c121SKalle Valo 3856e705c121SKalle Valo if (!__test_and_clear_bit(keyconf->hw_key_idx, mvm->fw_key_table)) { 3857e705c121SKalle Valo IWL_ERR(mvm, "offset %d not used in fw key table.\n", 3858e705c121SKalle Valo keyconf->hw_key_idx); 3859e705c121SKalle Valo return -ENOENT; 3860e705c121SKalle Valo } 3861e705c121SKalle Valo 3862e705c121SKalle Valo /* track which key was deleted last */ 3863e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3864e705c121SKalle Valo if (mvm->fw_key_deleted[i] < U8_MAX) 3865e705c121SKalle Valo mvm->fw_key_deleted[i]++; 3866e705c121SKalle Valo } 3867e705c121SKalle Valo mvm->fw_key_deleted[keyconf->hw_key_idx] = 0; 3868e705c121SKalle Valo 386985aeb58cSDavid Spinadel if (sta && !mvm_sta) { 3870e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "station non-existent, early return.\n"); 3871e705c121SKalle Valo return 0; 3872e705c121SKalle Valo } 3873e705c121SKalle Valo 3874e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 3875e705c121SKalle Valo if (ret) 3876e705c121SKalle Valo return ret; 3877e705c121SKalle Valo 3878e705c121SKalle Valo /* delete WEP key twice to get rid of (now useless) offset */ 3879e705c121SKalle Valo if (keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 3880e705c121SKalle Valo keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) 3881e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, !mcast); 3882e705c121SKalle Valo 3883e705c121SKalle Valo return ret; 3884e705c121SKalle Valo } 3885e705c121SKalle Valo 3886e705c121SKalle Valo void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, 3887e705c121SKalle Valo struct ieee80211_vif *vif, 3888e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3889e705c121SKalle Valo struct ieee80211_sta *sta, u32 iv32, 3890e705c121SKalle Valo u16 *phase1key) 3891e705c121SKalle Valo { 3892e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3893e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 38944883145aSEmmanuel Grumbach bool mfp = sta ? sta->mfp : false; 3895e705c121SKalle Valo 3896e705c121SKalle Valo rcu_read_lock(); 3897e705c121SKalle Valo 38985f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 38995f7a1847SJohannes Berg if (WARN_ON_ONCE(!mvm_sta)) 390012f17211SEmmanuel Grumbach goto unlock; 390185aeb58cSDavid Spinadel iwl_mvm_send_sta_key(mvm, mvm_sta->sta_id, keyconf, mcast, 39024883145aSEmmanuel Grumbach iv32, phase1key, CMD_ASYNC, keyconf->hw_key_idx, 39034883145aSEmmanuel Grumbach mfp); 390412f17211SEmmanuel Grumbach 390512f17211SEmmanuel Grumbach unlock: 3906e705c121SKalle Valo rcu_read_unlock(); 3907e705c121SKalle Valo } 3908e705c121SKalle Valo 3909e705c121SKalle Valo void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, 3910e705c121SKalle Valo struct ieee80211_sta *sta) 3911e705c121SKalle Valo { 3912e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3913e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3914e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3915e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3916e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_PS), 3917e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3918e705c121SKalle Valo }; 3919e705c121SKalle Valo int ret; 3920e705c121SKalle Valo 3921854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3922854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3923e705c121SKalle Valo if (ret) 3924e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3925e705c121SKalle Valo } 3926e705c121SKalle Valo 3927e705c121SKalle Valo void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, 3928e705c121SKalle Valo struct ieee80211_sta *sta, 3929e705c121SKalle Valo enum ieee80211_frame_release_type reason, 3930e705c121SKalle Valo u16 cnt, u16 tids, bool more_data, 39319a3fcf91SSara Sharon bool single_sta_queue) 3932e705c121SKalle Valo { 3933e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3934e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3935e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3936e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3937e705c121SKalle Valo .modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT, 3938e705c121SKalle Valo .sleep_tx_count = cpu_to_le16(cnt), 3939e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3940e705c121SKalle Valo }; 3941e705c121SKalle Valo int tid, ret; 3942e705c121SKalle Valo unsigned long _tids = tids; 3943e705c121SKalle Valo 3944e705c121SKalle Valo /* convert TIDs to ACs - we don't support TSPEC so that's OK 3945e705c121SKalle Valo * Note that this field is reserved and unused by firmware not 3946e705c121SKalle Valo * supporting GO uAPSD, so it's safe to always do this. 3947e705c121SKalle Valo */ 3948e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) 3949e705c121SKalle Valo cmd.awake_acs |= BIT(tid_to_ucode_ac[tid]); 3950e705c121SKalle Valo 39519a3fcf91SSara Sharon /* If we're releasing frames from aggregation or dqa queues then check 39529a3fcf91SSara Sharon * if all the queues that we're releasing frames from, combined, have: 3953e705c121SKalle Valo * - more frames than the service period, in which case more_data 3954e705c121SKalle Valo * needs to be set 3955e705c121SKalle Valo * - fewer than 'cnt' frames, in which case we need to adjust the 3956e705c121SKalle Valo * firmware command (but do that unconditionally) 3957e705c121SKalle Valo */ 39589a3fcf91SSara Sharon if (single_sta_queue) { 3959e705c121SKalle Valo int remaining = cnt; 396036be0eb6SEmmanuel Grumbach int sleep_tx_count; 3961e705c121SKalle Valo 3962e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3963e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) { 3964e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 3965e705c121SKalle Valo u16 n_queued; 3966e705c121SKalle Valo 3967e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 3968e705c121SKalle Valo 3969dd32162dSLiad Kaufman n_queued = iwl_mvm_tid_queued(mvm, tid_data); 3970e705c121SKalle Valo if (n_queued > remaining) { 3971e705c121SKalle Valo more_data = true; 3972e705c121SKalle Valo remaining = 0; 3973e705c121SKalle Valo break; 3974e705c121SKalle Valo } 3975e705c121SKalle Valo remaining -= n_queued; 3976e705c121SKalle Valo } 397736be0eb6SEmmanuel Grumbach sleep_tx_count = cnt - remaining; 397836be0eb6SEmmanuel Grumbach if (reason == IEEE80211_FRAME_RELEASE_UAPSD) 397936be0eb6SEmmanuel Grumbach mvmsta->sleep_tx_count = sleep_tx_count; 3980e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3981e705c121SKalle Valo 398236be0eb6SEmmanuel Grumbach cmd.sleep_tx_count = cpu_to_le16(sleep_tx_count); 3983e705c121SKalle Valo if (WARN_ON(cnt - remaining == 0)) { 3984e705c121SKalle Valo ieee80211_sta_eosp(sta); 3985e705c121SKalle Valo return; 3986e705c121SKalle Valo } 3987e705c121SKalle Valo } 3988e705c121SKalle Valo 3989e705c121SKalle Valo /* Note: this is ignored by firmware not supporting GO uAPSD */ 3990e705c121SKalle Valo if (more_data) 3991ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_MOREDATA; 3992e705c121SKalle Valo 3993e705c121SKalle Valo if (reason == IEEE80211_FRAME_RELEASE_PSPOLL) { 3994e705c121SKalle Valo mvmsta->next_status_eosp = true; 3995ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_PS_POLL; 3996e705c121SKalle Valo } else { 3997ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_UAPSD; 3998e705c121SKalle Valo } 3999e705c121SKalle Valo 4000156f92f2SEmmanuel Grumbach /* block the Tx queues until the FW updated the sleep Tx count */ 4001156f92f2SEmmanuel Grumbach iwl_trans_block_txq_ptrs(mvm->trans, true); 4002156f92f2SEmmanuel Grumbach 4003156f92f2SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 4004156f92f2SEmmanuel Grumbach CMD_ASYNC | CMD_WANT_ASYNC_CALLBACK, 4005854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 4006e705c121SKalle Valo if (ret) 4007e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 4008e705c121SKalle Valo } 4009e705c121SKalle Valo 4010e705c121SKalle Valo void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm, 4011e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 4012e705c121SKalle Valo { 4013e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 4014e705c121SKalle Valo struct iwl_mvm_eosp_notification *notif = (void *)pkt->data; 4015e705c121SKalle Valo struct ieee80211_sta *sta; 4016e705c121SKalle Valo u32 sta_id = le32_to_cpu(notif->sta_id); 4017e705c121SKalle Valo 4018be9ae34eSNathan Errera if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 4019e705c121SKalle Valo return; 4020e705c121SKalle Valo 4021e705c121SKalle Valo rcu_read_lock(); 4022e705c121SKalle Valo sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 4023e705c121SKalle Valo if (!IS_ERR_OR_NULL(sta)) 4024e705c121SKalle Valo ieee80211_sta_eosp(sta); 4025e705c121SKalle Valo rcu_read_unlock(); 4026e705c121SKalle Valo } 4027e705c121SKalle Valo 4028e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm, 4029e705c121SKalle Valo struct iwl_mvm_sta *mvmsta, bool disable) 4030e705c121SKalle Valo { 4031e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 4032e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 4033e705c121SKalle Valo .sta_id = mvmsta->sta_id, 4034e705c121SKalle Valo .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 4035e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 4036e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 4037e705c121SKalle Valo }; 4038e705c121SKalle Valo int ret; 4039e705c121SKalle Valo 4040854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 4041854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 4042e705c121SKalle Valo if (ret) 4043e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 4044e705c121SKalle Valo } 4045e705c121SKalle Valo 4046e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm, 4047e705c121SKalle Valo struct ieee80211_sta *sta, 4048e705c121SKalle Valo bool disable) 4049e705c121SKalle Valo { 4050e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4051e705c121SKalle Valo 4052e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 4053e705c121SKalle Valo 4054e705c121SKalle Valo if (mvm_sta->disable_tx == disable) { 4055e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 4056e705c121SKalle Valo return; 4057e705c121SKalle Valo } 4058e705c121SKalle Valo 4059e705c121SKalle Valo mvm_sta->disable_tx = disable; 4060e705c121SKalle Valo 4061b1c6cec0SNaftali Goldstein /* 4062b1c6cec0SNaftali Goldstein * If sta PS state is handled by mac80211, tell it to start/stop 4063b1c6cec0SNaftali Goldstein * queuing tx for this station. 4064b1c6cec0SNaftali Goldstein */ 4065b1c6cec0SNaftali Goldstein if (!ieee80211_hw_check(mvm->hw, AP_LINK_PS)) 4066e705c121SKalle Valo ieee80211_sta_block_awake(mvm->hw, sta, disable); 4067e705c121SKalle Valo 4068e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvm_sta, disable); 4069e705c121SKalle Valo 4070e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 4071e705c121SKalle Valo } 4072e705c121SKalle Valo 4073ced19f26SSara Sharon static void iwl_mvm_int_sta_modify_disable_tx(struct iwl_mvm *mvm, 4074ced19f26SSara Sharon struct iwl_mvm_vif *mvmvif, 4075ced19f26SSara Sharon struct iwl_mvm_int_sta *sta, 4076ced19f26SSara Sharon bool disable) 4077ced19f26SSara Sharon { 4078ced19f26SSara Sharon u32 id = FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color); 4079ced19f26SSara Sharon struct iwl_mvm_add_sta_cmd cmd = { 4080ced19f26SSara Sharon .add_modify = STA_MODE_MODIFY, 4081ced19f26SSara Sharon .sta_id = sta->sta_id, 4082ced19f26SSara Sharon .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 4083ced19f26SSara Sharon .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 4084ced19f26SSara Sharon .mac_id_n_color = cpu_to_le32(id), 4085ced19f26SSara Sharon }; 4086ced19f26SSara Sharon int ret; 4087ced19f26SSara Sharon 4088e5d153ecSEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 4089ced19f26SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 4090ced19f26SSara Sharon if (ret) 4091ced19f26SSara Sharon IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 4092ced19f26SSara Sharon } 4093ced19f26SSara Sharon 4094e705c121SKalle Valo void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm, 4095e705c121SKalle Valo struct iwl_mvm_vif *mvmvif, 4096e705c121SKalle Valo bool disable) 4097e705c121SKalle Valo { 4098e705c121SKalle Valo struct ieee80211_sta *sta; 4099e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 4100e705c121SKalle Valo int i; 4101e705c121SKalle Valo 4102e5d153ecSEmmanuel Grumbach rcu_read_lock(); 4103e705c121SKalle Valo 4104e705c121SKalle Valo /* Block/unblock all the stations of the given mvmvif */ 4105be9ae34eSNathan Errera for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 4106e5d153ecSEmmanuel Grumbach sta = rcu_dereference(mvm->fw_id_to_mac_id[i]); 4107e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) 4108e705c121SKalle Valo continue; 4109e705c121SKalle Valo 4110e705c121SKalle Valo mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4111e705c121SKalle Valo if (mvm_sta->mac_id_n_color != 4112e705c121SKalle Valo FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)) 4113e705c121SKalle Valo continue; 4114e705c121SKalle Valo 4115e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx_ap(mvm, sta, disable); 4116e705c121SKalle Valo } 4117ced19f26SSara Sharon 4118e5d153ecSEmmanuel Grumbach rcu_read_unlock(); 4119e5d153ecSEmmanuel Grumbach 4120ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 4121ced19f26SSara Sharon return; 4122ced19f26SSara Sharon 4123ced19f26SSara Sharon /* Need to block/unblock also multicast station */ 4124ced19f26SSara Sharon if (mvmvif->mcast_sta.sta_id != IWL_MVM_INVALID_STA) 4125ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 4126ced19f26SSara Sharon &mvmvif->mcast_sta, disable); 4127ced19f26SSara Sharon 4128ced19f26SSara Sharon /* 4129ced19f26SSara Sharon * Only unblock the broadcast station (FW blocks it for immediate 4130ced19f26SSara Sharon * quiet, not the driver) 4131ced19f26SSara Sharon */ 4132ced19f26SSara Sharon if (!disable && mvmvif->bcast_sta.sta_id != IWL_MVM_INVALID_STA) 4133ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 4134ced19f26SSara Sharon &mvmvif->bcast_sta, disable); 4135e705c121SKalle Valo } 4136e705c121SKalle Valo 4137e705c121SKalle Valo void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4138e705c121SKalle Valo { 4139e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4140e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 4141e705c121SKalle Valo 4142e705c121SKalle Valo rcu_read_lock(); 4143e705c121SKalle Valo 4144e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->ap_sta_id); 4145e705c121SKalle Valo 4146ad12b231SNathan Errera if (mvmsta) 4147e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true); 4148e705c121SKalle Valo 4149e705c121SKalle Valo rcu_read_unlock(); 4150e705c121SKalle Valo } 4151dd32162dSLiad Kaufman 4152dd32162dSLiad Kaufman u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data) 4153dd32162dSLiad Kaufman { 4154dd32162dSLiad Kaufman u16 sn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 4155dd32162dSLiad Kaufman 4156dd32162dSLiad Kaufman /* 41572f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 4158dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 4159dd32162dSLiad Kaufman */ 4160286ca8ebSLuca Coelho if (mvm->trans->trans_cfg->gen2) 4161dd32162dSLiad Kaufman sn &= 0xff; 4162dd32162dSLiad Kaufman 4163dd32162dSLiad Kaufman return ieee80211_sn_sub(sn, tid_data->next_reclaimed); 4164dd32162dSLiad Kaufman } 4165be82ecd3SAvraham Stern 4166be82ecd3SAvraham Stern int iwl_mvm_add_pasn_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 4167be82ecd3SAvraham Stern struct iwl_mvm_int_sta *sta, u8 *addr, u32 cipher, 4168be82ecd3SAvraham Stern u8 *key, u32 key_len) 4169be82ecd3SAvraham Stern { 4170be82ecd3SAvraham Stern int ret; 4171be82ecd3SAvraham Stern u16 queue; 4172be82ecd3SAvraham Stern struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4173be82ecd3SAvraham Stern struct ieee80211_key_conf *keyconf; 4174be82ecd3SAvraham Stern 4175be82ecd3SAvraham Stern ret = iwl_mvm_allocate_int_sta(mvm, sta, 0, 4176be82ecd3SAvraham Stern NL80211_IFTYPE_UNSPECIFIED, 4177be82ecd3SAvraham Stern IWL_STA_LINK); 4178be82ecd3SAvraham Stern if (ret) 4179be82ecd3SAvraham Stern return ret; 4180be82ecd3SAvraham Stern 4181be82ecd3SAvraham Stern ret = iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id, mvmvif->color, 4182be82ecd3SAvraham Stern addr, sta, &queue, 4183be82ecd3SAvraham Stern IWL_MVM_TX_FIFO_BE); 4184be82ecd3SAvraham Stern if (ret) 4185be82ecd3SAvraham Stern goto out; 4186be82ecd3SAvraham Stern 4187be82ecd3SAvraham Stern keyconf = kzalloc(sizeof(*keyconf) + key_len, GFP_KERNEL); 4188be82ecd3SAvraham Stern if (!keyconf) { 4189be82ecd3SAvraham Stern ret = -ENOBUFS; 4190be82ecd3SAvraham Stern goto out; 4191be82ecd3SAvraham Stern } 4192be82ecd3SAvraham Stern 4193be82ecd3SAvraham Stern keyconf->cipher = cipher; 4194be82ecd3SAvraham Stern memcpy(keyconf->key, key, key_len); 4195be82ecd3SAvraham Stern keyconf->keylen = key_len; 4196be82ecd3SAvraham Stern 4197be82ecd3SAvraham Stern ret = iwl_mvm_send_sta_key(mvm, sta->sta_id, keyconf, false, 4198be82ecd3SAvraham Stern 0, NULL, 0, 0, true); 4199be82ecd3SAvraham Stern kfree(keyconf); 4200be82ecd3SAvraham Stern return 0; 4201be82ecd3SAvraham Stern out: 4202be82ecd3SAvraham Stern iwl_mvm_dealloc_int_sta(mvm, sta); 4203be82ecd3SAvraham Stern return ret; 4204be82ecd3SAvraham Stern } 4205ad12b231SNathan Errera 4206ad12b231SNathan Errera void iwl_mvm_cancel_channel_switch(struct iwl_mvm *mvm, 4207ad12b231SNathan Errera struct ieee80211_vif *vif, 4208ad12b231SNathan Errera u32 mac_id) 4209ad12b231SNathan Errera { 4210ad12b231SNathan Errera struct iwl_cancel_channel_switch_cmd cancel_channel_switch_cmd = { 4211ad12b231SNathan Errera .mac_id = cpu_to_le32(mac_id), 4212ad12b231SNathan Errera }; 4213ad12b231SNathan Errera int ret; 4214ad12b231SNathan Errera 4215ad12b231SNathan Errera ret = iwl_mvm_send_cmd_pdu(mvm, 4216f0c86427SJohannes Berg WIDE_ID(MAC_CONF_GROUP, CANCEL_CHANNEL_SWITCH_CMD), 4217ad12b231SNathan Errera CMD_ASYNC, 4218ad12b231SNathan Errera sizeof(cancel_channel_switch_cmd), 4219ad12b231SNathan Errera &cancel_channel_switch_cmd); 4220ad12b231SNathan Errera if (ret) 4221ad12b231SNathan Errera IWL_ERR(mvm, "Failed to cancel the channel switch\n"); 4222ad12b231SNathan Errera } 4223