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" 12*c7eca79dSAvraham 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 55e705c121SKalle Valo /* send station add/update command to firmware */ 56e705c121SKalle Valo int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 5724afba76SLiad Kaufman bool update, unsigned int flags) 58e705c121SKalle Valo { 59e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 60e705c121SKalle Valo struct iwl_mvm_add_sta_cmd add_sta_cmd = { 61e705c121SKalle Valo .sta_id = mvm_sta->sta_id, 62e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color), 63e705c121SKalle Valo .add_modify = update ? 1 : 0, 64e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_FAT_EN_MSK | 658addabf8SNaftali Goldstein STA_FLG_MIMO_EN_MSK | 668addabf8SNaftali Goldstein STA_FLG_RTS_MIMO_PROT), 67cf0cda19SLiad Kaufman .tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg), 68e705c121SKalle Valo }; 69e705c121SKalle Valo int ret; 70e705c121SKalle Valo u32 status; 71e705c121SKalle Valo u32 agg_size = 0, mpdu_dens = 0; 72e705c121SKalle Valo 73ced19f26SSara Sharon if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 74ced19f26SSara Sharon add_sta_cmd.station_type = mvm_sta->sta_type; 75ced19f26SSara Sharon 7624afba76SLiad Kaufman if (!update || (flags & STA_MODIFY_QUEUES)) { 77e705c121SKalle Valo memcpy(&add_sta_cmd.addr, sta->addr, ETH_ALEN); 7824afba76SLiad Kaufman 79bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) { 80bb49701bSSara Sharon add_sta_cmd.tfd_queue_msk = 81bb49701bSSara Sharon cpu_to_le32(mvm_sta->tfd_queue_msk); 82bb49701bSSara Sharon 8324afba76SLiad Kaufman if (flags & STA_MODIFY_QUEUES) 8424afba76SLiad Kaufman add_sta_cmd.modify_mask |= STA_MODIFY_QUEUES; 85bb49701bSSara Sharon } else { 86bb49701bSSara Sharon WARN_ON(flags & STA_MODIFY_QUEUES); 87bb49701bSSara Sharon } 88e705c121SKalle Valo } 89e705c121SKalle Valo 90046d2e7cSSriram R switch (sta->deflink.bandwidth) { 915dca295dSIlan Peer case IEEE80211_STA_RX_BW_320: 92e705c121SKalle Valo case IEEE80211_STA_RX_BW_160: 93e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_160MHZ); 945a2abdcaSGustavo A. R. Silva fallthrough; 95e705c121SKalle Valo case IEEE80211_STA_RX_BW_80: 96e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_80MHZ); 975a2abdcaSGustavo A. R. Silva fallthrough; 98e705c121SKalle Valo case IEEE80211_STA_RX_BW_40: 99e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_40MHZ); 1005a2abdcaSGustavo A. R. Silva fallthrough; 101e705c121SKalle Valo case IEEE80211_STA_RX_BW_20: 102046d2e7cSSriram R if (sta->deflink.ht_cap.ht_supported) 103e705c121SKalle Valo add_sta_cmd.station_flags |= 104e705c121SKalle Valo cpu_to_le32(STA_FLG_FAT_EN_20MHZ); 105e705c121SKalle Valo break; 106e705c121SKalle Valo } 107e705c121SKalle Valo 108046d2e7cSSriram R switch (sta->deflink.rx_nss) { 109e705c121SKalle Valo case 1: 110e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 111e705c121SKalle Valo break; 112e705c121SKalle Valo case 2: 113e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO2); 114e705c121SKalle Valo break; 115e705c121SKalle Valo case 3 ... 8: 116e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO3); 117e705c121SKalle Valo break; 118e705c121SKalle Valo } 119e705c121SKalle Valo 120261ce887SBenjamin Berg switch (sta->deflink.smps_mode) { 121e705c121SKalle Valo case IEEE80211_SMPS_AUTOMATIC: 122e705c121SKalle Valo case IEEE80211_SMPS_NUM_MODES: 123e705c121SKalle Valo WARN_ON(1); 124e705c121SKalle Valo break; 125e705c121SKalle Valo case IEEE80211_SMPS_STATIC: 126e705c121SKalle Valo /* override NSS */ 127e705c121SKalle Valo add_sta_cmd.station_flags &= ~cpu_to_le32(STA_FLG_MIMO_EN_MSK); 128e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 129e705c121SKalle Valo break; 130e705c121SKalle Valo case IEEE80211_SMPS_DYNAMIC: 131e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_RTS_MIMO_PROT); 132e705c121SKalle Valo break; 133e705c121SKalle Valo case IEEE80211_SMPS_OFF: 134e705c121SKalle Valo /* nothing */ 135e705c121SKalle Valo break; 136e705c121SKalle Valo } 137e705c121SKalle Valo 138046d2e7cSSriram R if (sta->deflink.ht_cap.ht_supported) { 139e705c121SKalle Valo add_sta_cmd.station_flags_msk |= 140e705c121SKalle Valo cpu_to_le32(STA_FLG_MAX_AGG_SIZE_MSK | 141e705c121SKalle Valo STA_FLG_AGG_MPDU_DENS_MSK); 142e705c121SKalle Valo 143046d2e7cSSriram R mpdu_dens = sta->deflink.ht_cap.ampdu_density; 144e705c121SKalle Valo } 145e705c121SKalle Valo 146eae94cf8SLuca Coelho if (mvm_sta->vif->bss_conf.chandef.chan->band == NL80211_BAND_6GHZ) { 147eae94cf8SLuca Coelho add_sta_cmd.station_flags_msk |= 148eae94cf8SLuca Coelho cpu_to_le32(STA_FLG_MAX_AGG_SIZE_MSK | 149eae94cf8SLuca Coelho STA_FLG_AGG_MPDU_DENS_MSK); 150c8a2e7a2SMordechay Goodstein 151046d2e7cSSriram R mpdu_dens = le16_get_bits(sta->deflink.he_6ghz_capa.capa, 152eae94cf8SLuca Coelho IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START); 153046d2e7cSSriram R agg_size = le16_get_bits(sta->deflink.he_6ghz_capa.capa, 154eae94cf8SLuca Coelho IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP); 155046d2e7cSSriram R } else if (sta->deflink.vht_cap.vht_supported) { 156046d2e7cSSriram R agg_size = sta->deflink.vht_cap.cap & 157e705c121SKalle Valo IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; 158e705c121SKalle Valo agg_size >>= 159e705c121SKalle Valo IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; 160046d2e7cSSriram R } else if (sta->deflink.ht_cap.ht_supported) { 161046d2e7cSSriram R agg_size = sta->deflink.ht_cap.ampdu_factor; 162e705c121SKalle Valo } 163e705c121SKalle Valo 164c8a2e7a2SMordechay Goodstein /* D6.0 10.12.2 A-MPDU length limit rules 165c8a2e7a2SMordechay Goodstein * A STA indicates the maximum length of the A-MPDU preEOF padding 166c8a2e7a2SMordechay Goodstein * that it can receive in an HE PPDU in the Maximum A-MPDU Length 167c8a2e7a2SMordechay Goodstein * Exponent field in its HT Capabilities, VHT Capabilities, 168c8a2e7a2SMordechay Goodstein * and HE 6 GHz Band Capabilities elements (if present) and the 169c8a2e7a2SMordechay Goodstein * Maximum AMPDU Length Exponent Extension field in its HE 170c8a2e7a2SMordechay Goodstein * Capabilities element 171c8a2e7a2SMordechay Goodstein */ 172046d2e7cSSriram R if (sta->deflink.he_cap.has_he) 173046d2e7cSSriram R agg_size += u8_get_bits(sta->deflink.he_cap.he_cap_elem.mac_cap_info[3], 174c8a2e7a2SMordechay Goodstein IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK); 175c8a2e7a2SMordechay Goodstein 176c8a2e7a2SMordechay Goodstein /* Limit to max A-MPDU supported by FW */ 177c8a2e7a2SMordechay Goodstein if (agg_size > (STA_FLG_MAX_AGG_SIZE_4M >> STA_FLG_MAX_AGG_SIZE_SHIFT)) 178c8a2e7a2SMordechay Goodstein agg_size = (STA_FLG_MAX_AGG_SIZE_4M >> 179c8a2e7a2SMordechay Goodstein STA_FLG_MAX_AGG_SIZE_SHIFT); 180c8a2e7a2SMordechay Goodstein 181e705c121SKalle Valo add_sta_cmd.station_flags |= 182e705c121SKalle Valo cpu_to_le32(agg_size << STA_FLG_MAX_AGG_SIZE_SHIFT); 183e705c121SKalle Valo add_sta_cmd.station_flags |= 184e705c121SKalle Valo cpu_to_le32(mpdu_dens << STA_FLG_AGG_MPDU_DENS_SHIFT); 185d94c5a82SGregory Greenman if (mvm_sta->sta_state >= IEEE80211_STA_ASSOC) 18619c52f46SEmmanuel Grumbach add_sta_cmd.assoc_id = cpu_to_le16(sta->aid); 187e705c121SKalle Valo 18865e25482SJohannes Berg if (sta->wme) { 18965e25482SJohannes Berg add_sta_cmd.modify_mask |= STA_MODIFY_UAPSD_ACS; 19065e25482SJohannes Berg 19165e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK) 192c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_BK); 19365e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE) 194c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_BE); 19565e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI) 196c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_VI); 19765e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) 198c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_VO); 199c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= add_sta_cmd.uapsd_acs << 4; 200e71ca5eaSEmmanuel Grumbach add_sta_cmd.sp_length = sta->max_sp ? sta->max_sp * 2 : 128; 20165e25482SJohannes Berg } 20265e25482SJohannes Berg 203e705c121SKalle Valo status = ADD_STA_SUCCESS; 204854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 205854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 206e705c121SKalle Valo &add_sta_cmd, &status); 207e705c121SKalle Valo if (ret) 208e705c121SKalle Valo return ret; 209e705c121SKalle Valo 210837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 211e705c121SKalle Valo case ADD_STA_SUCCESS: 212e705c121SKalle Valo IWL_DEBUG_ASSOC(mvm, "ADD_STA PASSED\n"); 213e705c121SKalle Valo break; 214e705c121SKalle Valo default: 215e705c121SKalle Valo ret = -EIO; 216e705c121SKalle Valo IWL_ERR(mvm, "ADD_STA failed\n"); 217e705c121SKalle Valo break; 218e705c121SKalle Valo } 219e705c121SKalle Valo 220e705c121SKalle Valo return ret; 221e705c121SKalle Valo } 222e705c121SKalle Valo 2238cef5344SKees Cook static void iwl_mvm_rx_agg_session_expired(struct timer_list *t) 22410b2b201SSara Sharon { 2258cef5344SKees Cook struct iwl_mvm_baid_data *data = 2268cef5344SKees Cook from_timer(data, t, session_timer); 2278cef5344SKees Cook struct iwl_mvm_baid_data __rcu **rcu_ptr = data->rcu_ptr; 22810b2b201SSara Sharon struct iwl_mvm_baid_data *ba_data; 22910b2b201SSara Sharon struct ieee80211_sta *sta; 23010b2b201SSara Sharon struct iwl_mvm_sta *mvm_sta; 23110b2b201SSara Sharon unsigned long timeout; 23210b2b201SSara Sharon 23310b2b201SSara Sharon rcu_read_lock(); 23410b2b201SSara Sharon 23510b2b201SSara Sharon ba_data = rcu_dereference(*rcu_ptr); 23610b2b201SSara Sharon 23710b2b201SSara Sharon if (WARN_ON(!ba_data)) 23810b2b201SSara Sharon goto unlock; 23910b2b201SSara Sharon 24010b2b201SSara Sharon if (!ba_data->timeout) 24110b2b201SSara Sharon goto unlock; 24210b2b201SSara Sharon 24310b2b201SSara Sharon timeout = ba_data->last_rx + TU_TO_JIFFIES(ba_data->timeout * 2); 24410b2b201SSara Sharon if (time_is_after_jiffies(timeout)) { 24510b2b201SSara Sharon mod_timer(&ba_data->session_timer, timeout); 24610b2b201SSara Sharon goto unlock; 24710b2b201SSara Sharon } 24810b2b201SSara Sharon 24910b2b201SSara Sharon /* Timer expired */ 25010b2b201SSara Sharon sta = rcu_dereference(ba_data->mvm->fw_id_to_mac_id[ba_data->sta_id]); 25161dd8a8aSEmmanuel Grumbach 25261dd8a8aSEmmanuel Grumbach /* 25361dd8a8aSEmmanuel Grumbach * sta should be valid unless the following happens: 25461dd8a8aSEmmanuel Grumbach * The firmware asserts which triggers a reconfig flow, but 25561dd8a8aSEmmanuel Grumbach * the reconfig fails before we set the pointer to sta into 25661dd8a8aSEmmanuel Grumbach * the fw_id_to_mac_id pointer table. Mac80211 can't stop 25761dd8a8aSEmmanuel Grumbach * A-MDPU and hence the timer continues to run. Then, the 25861dd8a8aSEmmanuel Grumbach * timer expires and sta is NULL. 25961dd8a8aSEmmanuel Grumbach */ 26061dd8a8aSEmmanuel Grumbach if (!sta) 26161dd8a8aSEmmanuel Grumbach goto unlock; 26261dd8a8aSEmmanuel Grumbach 26310b2b201SSara Sharon mvm_sta = iwl_mvm_sta_from_mac80211(sta); 26420fc690fSNaftali Goldstein ieee80211_rx_ba_timer_expired(mvm_sta->vif, 26510b2b201SSara Sharon sta->addr, ba_data->tid); 26610b2b201SSara Sharon unlock: 26710b2b201SSara Sharon rcu_read_unlock(); 26810b2b201SSara Sharon } 26910b2b201SSara Sharon 2709794c64fSLiad Kaufman /* Disable aggregations for a bitmap of TIDs for a given station */ 2719794c64fSLiad Kaufman static int iwl_mvm_invalidate_sta_queue(struct iwl_mvm *mvm, int queue, 2729794c64fSLiad Kaufman unsigned long disable_agg_tids, 2739794c64fSLiad Kaufman bool remove_queue) 2749794c64fSLiad Kaufman { 2759794c64fSLiad Kaufman struct iwl_mvm_add_sta_cmd cmd = {}; 2769794c64fSLiad Kaufman struct ieee80211_sta *sta; 2779794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 2789794c64fSLiad Kaufman u32 status; 2799794c64fSLiad Kaufman u8 sta_id; 2809794c64fSLiad Kaufman 281bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 282bb49701bSSara Sharon return -EINVAL; 283bb49701bSSara Sharon 2849794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 2859794c64fSLiad Kaufman 2869794c64fSLiad Kaufman rcu_read_lock(); 2879794c64fSLiad Kaufman 2889794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 2899794c64fSLiad Kaufman 2909794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 2919794c64fSLiad Kaufman rcu_read_unlock(); 2929794c64fSLiad Kaufman return -EINVAL; 2939794c64fSLiad Kaufman } 2949794c64fSLiad Kaufman 2959794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 2969794c64fSLiad Kaufman 2979794c64fSLiad Kaufman mvmsta->tid_disable_agg |= disable_agg_tids; 2989794c64fSLiad Kaufman 2999794c64fSLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 3009794c64fSLiad Kaufman cmd.sta_id = mvmsta->sta_id; 3019794c64fSLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 3029794c64fSLiad Kaufman cmd.modify_mask = STA_MODIFY_QUEUES; 3039794c64fSLiad Kaufman if (disable_agg_tids) 3049794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 3059794c64fSLiad Kaufman if (remove_queue) 3069794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_QUEUE_REMOVAL; 3079794c64fSLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 3089794c64fSLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 3099794c64fSLiad Kaufman 3109794c64fSLiad Kaufman rcu_read_unlock(); 3119794c64fSLiad Kaufman 3129794c64fSLiad Kaufman /* Notify FW of queue removal from the STA queues */ 3139794c64fSLiad Kaufman status = ADD_STA_SUCCESS; 314b2c1bf59SSara Sharon return iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 3159794c64fSLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), 3169794c64fSLiad Kaufman &cmd, &status); 3179794c64fSLiad Kaufman } 3189794c64fSLiad Kaufman 319cfbc6c4cSSara Sharon static int iwl_mvm_disable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 320c5a976cfSJohannes Berg int sta_id, u16 *queueptr, u8 tid) 32199448a8cSJohannes Berg { 322c6ce1c74SJohannes Berg int queue = *queueptr; 32399448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 32499448a8cSJohannes Berg .scd_queue = queue, 32599448a8cSJohannes Berg .action = SCD_CFG_DISABLE_QUEUE, 32699448a8cSJohannes Berg }; 32799448a8cSJohannes Berg int ret; 32899448a8cSJohannes Berg 329227f2597SJohannes Berg lockdep_assert_held(&mvm->mutex); 330227f2597SJohannes Berg 33199448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) { 332227f2597SJohannes Berg if (mvm->sta_remove_requires_queue_remove) { 333227f2597SJohannes Berg u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, 334227f2597SJohannes Berg SCD_QUEUE_CONFIG_CMD); 335227f2597SJohannes Berg struct iwl_scd_queue_cfg_cmd remove_cmd = { 336227f2597SJohannes Berg .operation = cpu_to_le32(IWL_SCD_QUEUE_REMOVE), 337c5a976cfSJohannes Berg .u.remove.tid = cpu_to_le32(tid), 338c5a976cfSJohannes Berg .u.remove.sta_mask = cpu_to_le32(BIT(sta_id)), 339227f2597SJohannes Berg }; 340227f2597SJohannes Berg 341227f2597SJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, 342227f2597SJohannes Berg sizeof(remove_cmd), 343227f2597SJohannes Berg &remove_cmd); 344227f2597SJohannes Berg } else { 345227f2597SJohannes Berg ret = 0; 346227f2597SJohannes Berg } 347227f2597SJohannes Berg 34899448a8cSJohannes Berg iwl_trans_txq_free(mvm->trans, queue); 349c6ce1c74SJohannes Berg *queueptr = IWL_MVM_INVALID_QUEUE; 35099448a8cSJohannes Berg 351227f2597SJohannes Berg return ret; 35299448a8cSJohannes Berg } 35399448a8cSJohannes Berg 354f3f240f9SJohannes Berg if (WARN_ON(mvm->queue_info[queue].tid_bitmap == 0)) 35599448a8cSJohannes Berg return 0; 35699448a8cSJohannes Berg 35799448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 35899448a8cSJohannes Berg 3591c14089eSJohannes Berg cmd.action = mvm->queue_info[queue].tid_bitmap ? 36099448a8cSJohannes Berg SCD_CFG_ENABLE_QUEUE : SCD_CFG_DISABLE_QUEUE; 36199448a8cSJohannes Berg if (cmd.action == SCD_CFG_DISABLE_QUEUE) 36299448a8cSJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_FREE; 36399448a8cSJohannes Berg 36499448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 365cfbc6c4cSSara Sharon "Disabling TXQ #%d tids=0x%x\n", 36699448a8cSJohannes Berg queue, 367cfbc6c4cSSara Sharon mvm->queue_info[queue].tid_bitmap); 36899448a8cSJohannes Berg 36999448a8cSJohannes Berg /* If the queue is still enabled - nothing left to do in this func */ 370f3f240f9SJohannes Berg if (cmd.action == SCD_CFG_ENABLE_QUEUE) 37199448a8cSJohannes Berg return 0; 37299448a8cSJohannes Berg 37399448a8cSJohannes Berg cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 37499448a8cSJohannes Berg cmd.tid = mvm->queue_info[queue].txq_tid; 37599448a8cSJohannes Berg 37699448a8cSJohannes Berg /* Make sure queue info is correct even though we overwrite it */ 377cfbc6c4cSSara Sharon WARN(mvm->queue_info[queue].tid_bitmap, 378cfbc6c4cSSara Sharon "TXQ #%d info out-of-sync - tids=0x%x\n", 379cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 38099448a8cSJohannes Berg 38199448a8cSJohannes Berg /* If we are here - the queue is freed and we can zero out these vals */ 38299448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap = 0; 383cfbc6c4cSSara Sharon 384cfbc6c4cSSara Sharon if (sta) { 385cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 386cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 387cfbc6c4cSSara Sharon 388cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 38995b0f666SJose Ignacio Tornos Martinez list_del_init(&mvmtxq->list); 390cfbc6c4cSSara Sharon } 39199448a8cSJohannes Berg 39299448a8cSJohannes Berg /* Regardless if this is a reserved TXQ for a STA - mark it as false */ 39399448a8cSJohannes Berg mvm->queue_info[queue].reserved = false; 39499448a8cSJohannes Berg 39599448a8cSJohannes Berg iwl_trans_txq_disable(mvm->trans, queue, false); 39664ff7eb0SJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, 39799448a8cSJohannes Berg sizeof(struct iwl_scd_txq_cfg_cmd), &cmd); 39899448a8cSJohannes Berg 39999448a8cSJohannes Berg if (ret) 40099448a8cSJohannes Berg IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n", 40199448a8cSJohannes Berg queue, ret); 40299448a8cSJohannes Berg return ret; 40399448a8cSJohannes Berg } 40499448a8cSJohannes Berg 40542db09c1SLiad Kaufman static int iwl_mvm_get_queue_agg_tids(struct iwl_mvm *mvm, int queue) 40642db09c1SLiad Kaufman { 40742db09c1SLiad Kaufman struct ieee80211_sta *sta; 40842db09c1SLiad Kaufman struct iwl_mvm_sta *mvmsta; 40942db09c1SLiad Kaufman unsigned long tid_bitmap; 41042db09c1SLiad Kaufman unsigned long agg_tids = 0; 411806911daSSharon Dvir u8 sta_id; 41242db09c1SLiad Kaufman int tid; 41342db09c1SLiad Kaufman 41442db09c1SLiad Kaufman lockdep_assert_held(&mvm->mutex); 41542db09c1SLiad Kaufman 416bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 417bb49701bSSara Sharon return -EINVAL; 418bb49701bSSara Sharon 41942db09c1SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 42042db09c1SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 42142db09c1SLiad Kaufman 42242db09c1SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 42342db09c1SLiad Kaufman lockdep_is_held(&mvm->mutex)); 42442db09c1SLiad Kaufman 42542db09c1SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 42642db09c1SLiad Kaufman return -EINVAL; 42742db09c1SLiad Kaufman 42842db09c1SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 42942db09c1SLiad Kaufman 43042db09c1SLiad Kaufman spin_lock_bh(&mvmsta->lock); 43142db09c1SLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 43242db09c1SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 43342db09c1SLiad Kaufman agg_tids |= BIT(tid); 43442db09c1SLiad Kaufman } 43542db09c1SLiad Kaufman spin_unlock_bh(&mvmsta->lock); 43642db09c1SLiad Kaufman 43742db09c1SLiad Kaufman return agg_tids; 43842db09c1SLiad Kaufman } 43942db09c1SLiad Kaufman 4409794c64fSLiad Kaufman /* 4419794c64fSLiad Kaufman * Remove a queue from a station's resources. 4429794c64fSLiad Kaufman * Note that this only marks as free. It DOESN'T delete a BA agreement, and 4439794c64fSLiad Kaufman * doesn't disable the queue 4449794c64fSLiad Kaufman */ 4459794c64fSLiad Kaufman static int iwl_mvm_remove_sta_queue_marking(struct iwl_mvm *mvm, int queue) 4469794c64fSLiad Kaufman { 4479794c64fSLiad Kaufman struct ieee80211_sta *sta; 4489794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 4499794c64fSLiad Kaufman unsigned long tid_bitmap; 4509794c64fSLiad Kaufman unsigned long disable_agg_tids = 0; 4519794c64fSLiad Kaufman u8 sta_id; 4529794c64fSLiad Kaufman int tid; 4539794c64fSLiad Kaufman 4549794c64fSLiad Kaufman lockdep_assert_held(&mvm->mutex); 4559794c64fSLiad Kaufman 456bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 457bb49701bSSara Sharon return -EINVAL; 458bb49701bSSara Sharon 4599794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 4609794c64fSLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 4619794c64fSLiad Kaufman 4629794c64fSLiad Kaufman rcu_read_lock(); 4639794c64fSLiad Kaufman 4649794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 4659794c64fSLiad Kaufman 4669794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 4679794c64fSLiad Kaufman rcu_read_unlock(); 4689794c64fSLiad Kaufman return 0; 4699794c64fSLiad Kaufman } 4709794c64fSLiad Kaufman 4719794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 4729794c64fSLiad Kaufman 4739794c64fSLiad Kaufman spin_lock_bh(&mvmsta->lock); 47442db09c1SLiad Kaufman /* Unmap MAC queues and TIDs from this queue */ 4759794c64fSLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 476cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 477cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 478cfbc6c4cSSara Sharon 4799794c64fSLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 4809794c64fSLiad Kaufman disable_agg_tids |= BIT(tid); 4816862fceeSSara Sharon mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 482cfbc6c4cSSara Sharon 483cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 48495b0f666SJose Ignacio Tornos Martinez list_del_init(&mvmtxq->list); 4859794c64fSLiad Kaufman } 4869794c64fSLiad Kaufman 48742db09c1SLiad Kaufman mvmsta->tfd_queue_msk &= ~BIT(queue); /* Don't use this queue anymore */ 4889794c64fSLiad Kaufman spin_unlock_bh(&mvmsta->lock); 4899794c64fSLiad Kaufman 4909794c64fSLiad Kaufman rcu_read_unlock(); 4919794c64fSLiad Kaufman 49206bc6f6eSJohannes Berg /* 49306bc6f6eSJohannes Berg * The TX path may have been using this TXQ_ID from the tid_data, 49406bc6f6eSJohannes Berg * so make sure it's no longer running so that we can safely reuse 49506bc6f6eSJohannes Berg * this TXQ later. We've set all the TIDs to IWL_MVM_INVALID_QUEUE 49606bc6f6eSJohannes Berg * above, but nothing guarantees we've stopped using them. Thus, 49706bc6f6eSJohannes Berg * without this, we could get to iwl_mvm_disable_txq() and remove 49806bc6f6eSJohannes Berg * the queue while still sending frames to it. 49906bc6f6eSJohannes Berg */ 50006bc6f6eSJohannes Berg synchronize_net(); 50106bc6f6eSJohannes Berg 5029794c64fSLiad Kaufman return disable_agg_tids; 5039794c64fSLiad Kaufman } 5049794c64fSLiad Kaufman 50501796ff2SSara Sharon static int iwl_mvm_free_inactive_queue(struct iwl_mvm *mvm, int queue, 506cfbc6c4cSSara Sharon struct ieee80211_sta *old_sta, 507724fe771SJohannes Berg u8 new_sta_id) 50801796ff2SSara Sharon { 50901796ff2SSara Sharon struct iwl_mvm_sta *mvmsta; 510cfbc6c4cSSara Sharon u8 sta_id, tid; 51101796ff2SSara Sharon unsigned long disable_agg_tids = 0; 512724fe771SJohannes Berg bool same_sta; 513c6ce1c74SJohannes Berg u16 queue_tmp = queue; 51401796ff2SSara Sharon int ret; 51501796ff2SSara Sharon 51601796ff2SSara Sharon lockdep_assert_held(&mvm->mutex); 51701796ff2SSara Sharon 518bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 519bb49701bSSara Sharon return -EINVAL; 520bb49701bSSara Sharon 52101796ff2SSara Sharon sta_id = mvm->queue_info[queue].ra_sta_id; 52201796ff2SSara Sharon tid = mvm->queue_info[queue].txq_tid; 52301796ff2SSara Sharon 524724fe771SJohannes Berg same_sta = sta_id == new_sta_id; 525724fe771SJohannes Berg 52601796ff2SSara Sharon mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 527e3df1e4bSSharon Dvir if (WARN_ON(!mvmsta)) 528e3df1e4bSSharon Dvir return -EINVAL; 52901796ff2SSara Sharon 53001796ff2SSara Sharon disable_agg_tids = iwl_mvm_remove_sta_queue_marking(mvm, queue); 53101796ff2SSara Sharon /* Disable the queue */ 53201796ff2SSara Sharon if (disable_agg_tids) 53301796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 53401796ff2SSara Sharon disable_agg_tids, false); 53501796ff2SSara Sharon 536c5a976cfSJohannes Berg ret = iwl_mvm_disable_txq(mvm, old_sta, sta_id, &queue_tmp, tid); 53701796ff2SSara Sharon if (ret) { 53801796ff2SSara Sharon IWL_ERR(mvm, 53901796ff2SSara Sharon "Failed to free inactive queue %d (ret=%d)\n", 54001796ff2SSara Sharon queue, ret); 54101796ff2SSara Sharon 54201796ff2SSara Sharon return ret; 54301796ff2SSara Sharon } 54401796ff2SSara Sharon 54501796ff2SSara Sharon /* If TXQ is allocated to another STA, update removal in FW */ 54601796ff2SSara Sharon if (!same_sta) 54701796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 0, true); 54801796ff2SSara Sharon 54901796ff2SSara Sharon return 0; 55001796ff2SSara Sharon } 55101796ff2SSara Sharon 55242db09c1SLiad Kaufman static int iwl_mvm_get_shared_queue(struct iwl_mvm *mvm, 55342db09c1SLiad Kaufman unsigned long tfd_queue_mask, u8 ac) 55442db09c1SLiad Kaufman { 55542db09c1SLiad Kaufman int queue = 0; 55642db09c1SLiad Kaufman u8 ac_to_queue[IEEE80211_NUM_ACS]; 55742db09c1SLiad Kaufman int i; 55842db09c1SLiad Kaufman 55990d2d94cSJohannes Berg /* 56090d2d94cSJohannes Berg * This protects us against grabbing a queue that's being reconfigured 56190d2d94cSJohannes Berg * by the inactivity checker. 56290d2d94cSJohannes Berg */ 56390d2d94cSJohannes Berg lockdep_assert_held(&mvm->mutex); 56490d2d94cSJohannes Berg 565bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 566bb49701bSSara Sharon return -EINVAL; 56742db09c1SLiad Kaufman 56842db09c1SLiad Kaufman memset(&ac_to_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(ac_to_queue)); 56942db09c1SLiad Kaufman 57042db09c1SLiad Kaufman /* See what ACs the existing queues for this STA have */ 57142db09c1SLiad Kaufman for_each_set_bit(i, &tfd_queue_mask, IWL_MVM_DQA_MAX_DATA_QUEUE) { 57242db09c1SLiad Kaufman /* Only DATA queues can be shared */ 57342db09c1SLiad Kaufman if (i < IWL_MVM_DQA_MIN_DATA_QUEUE && 57442db09c1SLiad Kaufman i != IWL_MVM_DQA_BSS_CLIENT_QUEUE) 57542db09c1SLiad Kaufman continue; 57642db09c1SLiad Kaufman 57742db09c1SLiad Kaufman ac_to_queue[mvm->queue_info[i].mac80211_ac] = i; 57842db09c1SLiad Kaufman } 57942db09c1SLiad Kaufman 58042db09c1SLiad Kaufman /* 58142db09c1SLiad Kaufman * The queue to share is chosen only from DATA queues as follows (in 58242db09c1SLiad Kaufman * descending priority): 58342db09c1SLiad Kaufman * 1. An AC_BE queue 58442db09c1SLiad Kaufman * 2. Same AC queue 58542db09c1SLiad Kaufman * 3. Highest AC queue that is lower than new AC 58642db09c1SLiad Kaufman * 4. Any existing AC (there always is at least 1 DATA queue) 58742db09c1SLiad Kaufman */ 58842db09c1SLiad Kaufman 58942db09c1SLiad Kaufman /* Priority 1: An AC_BE queue */ 59042db09c1SLiad Kaufman if (ac_to_queue[IEEE80211_AC_BE] != IEEE80211_INVAL_HW_QUEUE) 59142db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BE]; 59242db09c1SLiad Kaufman /* Priority 2: Same AC queue */ 59342db09c1SLiad Kaufman else if (ac_to_queue[ac] != IEEE80211_INVAL_HW_QUEUE) 59442db09c1SLiad Kaufman queue = ac_to_queue[ac]; 59542db09c1SLiad Kaufman /* Priority 3a: If new AC is VO and VI exists - use VI */ 59642db09c1SLiad Kaufman else if (ac == IEEE80211_AC_VO && 59742db09c1SLiad Kaufman ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 59842db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 59942db09c1SLiad Kaufman /* Priority 3b: No BE so only AC less than the new one is BK */ 60042db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_BK] != IEEE80211_INVAL_HW_QUEUE) 60142db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BK]; 60242db09c1SLiad Kaufman /* Priority 4a: No BE nor BK - use VI if exists */ 60342db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 60442db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 60542db09c1SLiad Kaufman /* Priority 4b: No BE, BK nor VI - use VO if exists */ 60642db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VO] != IEEE80211_INVAL_HW_QUEUE) 60742db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VO]; 60842db09c1SLiad Kaufman 60942db09c1SLiad Kaufman /* Make sure queue found (or not) is legal */ 6109f9af3d7SLiad Kaufman if (!iwl_mvm_is_dqa_data_queue(mvm, queue) && 6119f9af3d7SLiad Kaufman !iwl_mvm_is_dqa_mgmt_queue(mvm, queue) && 6129f9af3d7SLiad Kaufman (queue != IWL_MVM_DQA_BSS_CLIENT_QUEUE)) { 61342db09c1SLiad Kaufman IWL_ERR(mvm, "No DATA queues available to share\n"); 6149f9af3d7SLiad Kaufman return -ENOSPC; 6159f9af3d7SLiad Kaufman } 6169f9af3d7SLiad Kaufman 61742db09c1SLiad Kaufman return queue; 61842db09c1SLiad Kaufman } 61942db09c1SLiad Kaufman 620a54844d4SJohannes Berg /* Re-configure the SCD for a queue that has already been configured */ 621a54844d4SJohannes Berg static int iwl_mvm_reconfig_scd(struct iwl_mvm *mvm, int queue, int fifo, 622a54844d4SJohannes Berg int sta_id, int tid, int frame_limit, u16 ssn) 623a54844d4SJohannes Berg { 624a54844d4SJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 625a54844d4SJohannes Berg .scd_queue = queue, 626a54844d4SJohannes Berg .action = SCD_CFG_ENABLE_QUEUE, 627a54844d4SJohannes Berg .window = frame_limit, 628a54844d4SJohannes Berg .sta_id = sta_id, 629a54844d4SJohannes Berg .ssn = cpu_to_le16(ssn), 630a54844d4SJohannes Berg .tx_fifo = fifo, 631a54844d4SJohannes Berg .aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 632a54844d4SJohannes Berg queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE), 633a54844d4SJohannes Berg .tid = tid, 634a54844d4SJohannes Berg }; 635a54844d4SJohannes Berg int ret; 636a54844d4SJohannes Berg 637a54844d4SJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 638a54844d4SJohannes Berg return -EINVAL; 639a54844d4SJohannes Berg 640a54844d4SJohannes Berg if (WARN(mvm->queue_info[queue].tid_bitmap == 0, 641a54844d4SJohannes Berg "Trying to reconfig unallocated queue %d\n", queue)) 642a54844d4SJohannes Berg return -ENXIO; 643a54844d4SJohannes Berg 644a54844d4SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Reconfig SCD for TXQ #%d\n", queue); 645a54844d4SJohannes Berg 646a54844d4SJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 647a54844d4SJohannes Berg WARN_ONCE(ret, "Failed to re-configure queue %d on FIFO %d, ret=%d\n", 648a54844d4SJohannes Berg queue, fifo, ret); 649a54844d4SJohannes Berg 650a54844d4SJohannes Berg return ret; 651a54844d4SJohannes Berg } 652a54844d4SJohannes Berg 65358f2cc57SLiad Kaufman /* 6549f9af3d7SLiad Kaufman * If a given queue has a higher AC than the TID stream that is being compared 6559f9af3d7SLiad Kaufman * to, the queue needs to be redirected to the lower AC. This function does that 65658f2cc57SLiad Kaufman * in such a case, otherwise - if no redirection required - it does nothing, 65758f2cc57SLiad Kaufman * unless the %force param is true. 65858f2cc57SLiad Kaufman */ 659cfbc6c4cSSara Sharon static int iwl_mvm_redirect_queue(struct iwl_mvm *mvm, int queue, int tid, 66058f2cc57SLiad Kaufman int ac, int ssn, unsigned int wdg_timeout, 661cfbc6c4cSSara Sharon bool force, struct iwl_mvm_txq *txq) 66258f2cc57SLiad Kaufman { 66358f2cc57SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 66458f2cc57SLiad Kaufman .scd_queue = queue, 665f7c692deSLiad Kaufman .action = SCD_CFG_DISABLE_QUEUE, 66658f2cc57SLiad Kaufman }; 66758f2cc57SLiad Kaufman bool shared_queue; 66858f2cc57SLiad Kaufman int ret; 66958f2cc57SLiad Kaufman 670bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 671bb49701bSSara Sharon return -EINVAL; 672bb49701bSSara Sharon 67358f2cc57SLiad Kaufman /* 67458f2cc57SLiad Kaufman * If the AC is lower than current one - FIFO needs to be redirected to 67558f2cc57SLiad Kaufman * the lowest one of the streams in the queue. Check if this is needed 67658f2cc57SLiad Kaufman * here. 67758f2cc57SLiad Kaufman * Notice that the enum ieee80211_ac_numbers is "flipped", so BK is with 67858f2cc57SLiad Kaufman * value 3 and VO with value 0, so to check if ac X is lower than ac Y 67958f2cc57SLiad Kaufman * we need to check if the numerical value of X is LARGER than of Y. 68058f2cc57SLiad Kaufman */ 68158f2cc57SLiad Kaufman if (ac <= mvm->queue_info[queue].mac80211_ac && !force) { 68258f2cc57SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 68358f2cc57SLiad Kaufman "No redirection needed on TXQ #%d\n", 68458f2cc57SLiad Kaufman queue); 68558f2cc57SLiad Kaufman return 0; 68658f2cc57SLiad Kaufman } 68758f2cc57SLiad Kaufman 68858f2cc57SLiad Kaufman cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 68958f2cc57SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[mvm->queue_info[queue].mac80211_ac]; 690edbe961cSLiad Kaufman cmd.tid = mvm->queue_info[queue].txq_tid; 6911c14089eSJohannes Berg shared_queue = hweight16(mvm->queue_info[queue].tid_bitmap) > 1; 69258f2cc57SLiad Kaufman 6939f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Redirecting TXQ #%d to FIFO #%d\n", 69458f2cc57SLiad Kaufman queue, iwl_mvm_ac_to_tx_fifo[ac]); 69558f2cc57SLiad Kaufman 696cfbc6c4cSSara Sharon /* Stop the queue and wait for it to empty */ 697cfbc6c4cSSara Sharon txq->stopped = true; 698cfbc6c4cSSara Sharon 699a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(queue)); 70058f2cc57SLiad Kaufman if (ret) { 70158f2cc57SLiad Kaufman IWL_ERR(mvm, "Error draining queue %d before reconfig\n", 70258f2cc57SLiad Kaufman queue); 70358f2cc57SLiad Kaufman ret = -EIO; 70458f2cc57SLiad Kaufman goto out; 70558f2cc57SLiad Kaufman } 70658f2cc57SLiad Kaufman 70758f2cc57SLiad Kaufman /* Before redirecting the queue we need to de-activate it */ 70858f2cc57SLiad Kaufman iwl_trans_txq_disable(mvm->trans, queue, false); 70958f2cc57SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 71058f2cc57SLiad Kaufman if (ret) 71158f2cc57SLiad Kaufman IWL_ERR(mvm, "Failed SCD disable TXQ %d (ret=%d)\n", queue, 71258f2cc57SLiad Kaufman ret); 71358f2cc57SLiad Kaufman 71458f2cc57SLiad Kaufman /* Make sure the SCD wrptr is correctly set before reconfiguring */ 715ca3b9c6bSSara Sharon iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, wdg_timeout); 71658f2cc57SLiad Kaufman 717edbe961cSLiad Kaufman /* Update the TID "owner" of the queue */ 718edbe961cSLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 719edbe961cSLiad Kaufman 72058f2cc57SLiad Kaufman /* TODO: Work-around SCD bug when moving back by multiples of 0x40 */ 72158f2cc57SLiad Kaufman 72258f2cc57SLiad Kaufman /* Redirect to lower AC */ 72358f2cc57SLiad Kaufman iwl_mvm_reconfig_scd(mvm, queue, iwl_mvm_ac_to_tx_fifo[ac], 7240ec9257bSSara Sharon cmd.sta_id, tid, IWL_FRAME_LIMIT, ssn); 72558f2cc57SLiad Kaufman 72658f2cc57SLiad Kaufman /* Update AC marking of the queue */ 72758f2cc57SLiad Kaufman mvm->queue_info[queue].mac80211_ac = ac; 72858f2cc57SLiad Kaufman 72958f2cc57SLiad Kaufman /* 73058f2cc57SLiad Kaufman * Mark queue as shared in transport if shared 73158f2cc57SLiad Kaufman * Note this has to be done after queue enablement because enablement 73258f2cc57SLiad Kaufman * can also set this value, and there is no indication there to shared 73358f2cc57SLiad Kaufman * queues 73458f2cc57SLiad Kaufman */ 73558f2cc57SLiad Kaufman if (shared_queue) 73658f2cc57SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 73758f2cc57SLiad Kaufman 73858f2cc57SLiad Kaufman out: 739cfbc6c4cSSara Sharon /* Continue using the queue */ 740cfbc6c4cSSara Sharon txq->stopped = false; 74158f2cc57SLiad Kaufman 74258f2cc57SLiad Kaufman return ret; 74358f2cc57SLiad Kaufman } 74458f2cc57SLiad Kaufman 74599448a8cSJohannes Berg static int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 sta_id, 74699448a8cSJohannes Berg u8 minq, u8 maxq) 74799448a8cSJohannes Berg { 74899448a8cSJohannes Berg int i; 74999448a8cSJohannes Berg 750f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 75199448a8cSJohannes Berg 752e5b72e3bSJohannes Berg if (WARN(maxq >= mvm->trans->trans_cfg->base_params->num_of_queues, 753e5b72e3bSJohannes Berg "max queue %d >= num_of_queues (%d)", maxq, 754e5b72e3bSJohannes Berg mvm->trans->trans_cfg->base_params->num_of_queues)) 755e5b72e3bSJohannes Berg maxq = mvm->trans->trans_cfg->base_params->num_of_queues - 1; 756e5b72e3bSJohannes Berg 75799448a8cSJohannes Berg /* This should not be hit with new TX path */ 75899448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 75999448a8cSJohannes Berg return -ENOSPC; 76099448a8cSJohannes Berg 76199448a8cSJohannes Berg /* Start by looking for a free queue */ 76299448a8cSJohannes Berg for (i = minq; i <= maxq; i++) 7631c14089eSJohannes Berg if (mvm->queue_info[i].tid_bitmap == 0 && 76499448a8cSJohannes Berg mvm->queue_info[i].status == IWL_MVM_QUEUE_FREE) 76599448a8cSJohannes Berg return i; 76699448a8cSJohannes Berg 76799448a8cSJohannes Berg return -ENOSPC; 76899448a8cSJohannes Berg } 76999448a8cSJohannes Berg 77009369983SJohannes Berg static int iwl_mvm_get_queue_size(struct ieee80211_sta *sta) 77109369983SJohannes Berg { 77209369983SJohannes Berg /* this queue isn't used for traffic (cab_queue) */ 77309369983SJohannes Berg if (!sta) 77409369983SJohannes Berg return IWL_MGMT_QUEUE_SIZE; 77509369983SJohannes Berg 77609369983SJohannes Berg /* support for 1k ba size */ 77709369983SJohannes Berg if (sta->deflink.eht_cap.has_eht) 77809369983SJohannes Berg return IWL_DEFAULT_QUEUE_SIZE_EHT; 77909369983SJohannes Berg 78009369983SJohannes Berg /* support for 256 ba size */ 78109369983SJohannes Berg if (sta->deflink.he_cap.has_he) 78209369983SJohannes Berg return IWL_DEFAULT_QUEUE_SIZE_HE; 78309369983SJohannes Berg 78409369983SJohannes Berg return IWL_DEFAULT_QUEUE_SIZE; 78509369983SJohannes Berg } 78609369983SJohannes Berg 787006c152aSMiri Korenblit int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm, 78809369983SJohannes Berg struct ieee80211_sta *sta, 78999448a8cSJohannes Berg u8 sta_id, u8 tid, unsigned int timeout) 79099448a8cSJohannes Berg { 791d5399f11SMordechay Goodstein int queue, size; 79299448a8cSJohannes Berg 79399448a8cSJohannes Berg if (tid == IWL_MAX_TID_COUNT) { 79499448a8cSJohannes Berg tid = IWL_MGMT_TID; 795ff911dcaSShaul Triebitz size = max_t(u32, IWL_MGMT_QUEUE_SIZE, 796ff911dcaSShaul Triebitz mvm->trans->cfg->min_txq_size); 797d5399f11SMordechay Goodstein } else { 79809369983SJohannes Berg size = iwl_mvm_get_queue_size(sta); 799d5399f11SMordechay Goodstein } 800d5399f11SMordechay Goodstein 801d5399f11SMordechay Goodstein /* take the min with bc tbl entries allowed */ 802d5399f11SMordechay Goodstein size = min_t(u32, size, mvm->trans->txqs.bc_tbl_size / sizeof(u16)); 803d5399f11SMordechay Goodstein 804d5399f11SMordechay Goodstein /* size needs to be power of 2 values for calculating read/write pointers */ 805d5399f11SMordechay Goodstein size = rounddown_pow_of_two(size); 806d5399f11SMordechay Goodstein 80792f78d4bSJohannes Berg do { 808227f2597SJohannes Berg queue = iwl_trans_txq_alloc(mvm->trans, 0, BIT(sta_id), 80985b17a33SJohannes Berg tid, size, timeout); 81092f78d4bSJohannes Berg 81192f78d4bSJohannes Berg if (queue < 0) 81299448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 81392f78d4bSJohannes Berg "Failed allocating TXQ of size %d for sta %d tid %d, ret: %d\n", 81492f78d4bSJohannes Berg size, sta_id, tid, queue); 81592f78d4bSJohannes Berg size /= 2; 81692f78d4bSJohannes Berg } while (queue < 0 && size >= 16); 81792f78d4bSJohannes Berg 81892f78d4bSJohannes Berg if (queue < 0) 81999448a8cSJohannes Berg return queue; 82099448a8cSJohannes Berg 82199448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Enabling TXQ #%d for sta %d tid %d\n", 82299448a8cSJohannes Berg queue, sta_id, tid); 82399448a8cSJohannes Berg 82499448a8cSJohannes Berg return queue; 82599448a8cSJohannes Berg } 82699448a8cSJohannes Berg 827310181ecSSara Sharon static int iwl_mvm_sta_alloc_queue_tvqm(struct iwl_mvm *mvm, 828310181ecSSara Sharon struct ieee80211_sta *sta, u8 ac, 829310181ecSSara Sharon int tid) 830310181ecSSara Sharon { 831310181ecSSara Sharon struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 832cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 833cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 834310181ecSSara Sharon unsigned int wdg_timeout = 835310181ecSSara Sharon iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 836310181ecSSara Sharon int queue = -1; 837310181ecSSara Sharon 838310181ecSSara Sharon lockdep_assert_held(&mvm->mutex); 839310181ecSSara Sharon 840310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 841310181ecSSara Sharon "Allocating queue for sta %d on tid %d\n", 842310181ecSSara Sharon mvmsta->sta_id, tid); 84309369983SJohannes Berg queue = iwl_mvm_tvqm_enable_txq(mvm, sta, mvmsta->sta_id, 84409369983SJohannes Berg tid, wdg_timeout); 845310181ecSSara Sharon if (queue < 0) 846310181ecSSara Sharon return queue; 847310181ecSSara Sharon 848cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 849cfbc6c4cSSara Sharon mvm->tvqm_info[queue].txq_tid = tid; 850cfbc6c4cSSara Sharon mvm->tvqm_info[queue].sta_id = mvmsta->sta_id; 851cfbc6c4cSSara Sharon 852310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, "Allocated queue is %d\n", queue); 853310181ecSSara Sharon 854310181ecSSara Sharon spin_lock_bh(&mvmsta->lock); 855310181ecSSara Sharon mvmsta->tid_data[tid].txq_id = queue; 856310181ecSSara Sharon spin_unlock_bh(&mvmsta->lock); 857310181ecSSara Sharon 858310181ecSSara Sharon return 0; 859310181ecSSara Sharon } 860310181ecSSara Sharon 861cfbc6c4cSSara Sharon static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, 862cfbc6c4cSSara Sharon struct ieee80211_sta *sta, 863cfbc6c4cSSara Sharon int queue, u8 sta_id, u8 tid) 86499448a8cSJohannes Berg { 86599448a8cSJohannes Berg bool enable_queue = true; 86699448a8cSJohannes Berg 86799448a8cSJohannes Berg /* Make sure this TID isn't already enabled */ 86899448a8cSJohannes Berg if (mvm->queue_info[queue].tid_bitmap & BIT(tid)) { 86999448a8cSJohannes Berg IWL_ERR(mvm, "Trying to enable TXQ %d with existing TID %d\n", 87099448a8cSJohannes Berg queue, tid); 87199448a8cSJohannes Berg return false; 87299448a8cSJohannes Berg } 87399448a8cSJohannes Berg 87499448a8cSJohannes Berg /* Update mappings and refcounts */ 8751c14089eSJohannes Berg if (mvm->queue_info[queue].tid_bitmap) 87699448a8cSJohannes Berg enable_queue = false; 87799448a8cSJohannes Berg 87899448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap |= BIT(tid); 87999448a8cSJohannes Berg mvm->queue_info[queue].ra_sta_id = sta_id; 88099448a8cSJohannes Berg 88199448a8cSJohannes Berg if (enable_queue) { 88299448a8cSJohannes Berg if (tid != IWL_MAX_TID_COUNT) 88399448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = 88499448a8cSJohannes Berg tid_to_mac80211_ac[tid]; 88599448a8cSJohannes Berg else 88699448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = IEEE80211_AC_VO; 88799448a8cSJohannes Berg 88899448a8cSJohannes Berg mvm->queue_info[queue].txq_tid = tid; 88999448a8cSJohannes Berg } 89099448a8cSJohannes Berg 891cfbc6c4cSSara Sharon if (sta) { 892cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 893cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 894cfbc6c4cSSara Sharon 895cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 896cfbc6c4cSSara Sharon } 897cfbc6c4cSSara Sharon 89899448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 899cfbc6c4cSSara Sharon "Enabling TXQ #%d tids=0x%x\n", 900cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 90199448a8cSJohannes Berg 90299448a8cSJohannes Berg return enable_queue; 90399448a8cSJohannes Berg } 90499448a8cSJohannes Berg 905cfbc6c4cSSara Sharon static bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 906cfbc6c4cSSara Sharon int queue, u16 ssn, 90799448a8cSJohannes Berg const struct iwl_trans_txq_scd_cfg *cfg, 90899448a8cSJohannes Berg unsigned int wdg_timeout) 90999448a8cSJohannes Berg { 91099448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 91199448a8cSJohannes Berg .scd_queue = queue, 91299448a8cSJohannes Berg .action = SCD_CFG_ENABLE_QUEUE, 91399448a8cSJohannes Berg .window = cfg->frame_limit, 91499448a8cSJohannes Berg .sta_id = cfg->sta_id, 91599448a8cSJohannes Berg .ssn = cpu_to_le16(ssn), 91699448a8cSJohannes Berg .tx_fifo = cfg->fifo, 91799448a8cSJohannes Berg .aggregate = cfg->aggregate, 91899448a8cSJohannes Berg .tid = cfg->tid, 91999448a8cSJohannes Berg }; 92099448a8cSJohannes Berg bool inc_ssn; 92199448a8cSJohannes Berg 92299448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 92399448a8cSJohannes Berg return false; 92499448a8cSJohannes Berg 92599448a8cSJohannes Berg /* Send the enabling command if we need to */ 926cfbc6c4cSSara Sharon if (!iwl_mvm_update_txq_mapping(mvm, sta, queue, cfg->sta_id, cfg->tid)) 92799448a8cSJohannes Berg return false; 92899448a8cSJohannes Berg 92999448a8cSJohannes Berg inc_ssn = iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, 93099448a8cSJohannes Berg NULL, wdg_timeout); 93199448a8cSJohannes Berg if (inc_ssn) 93299448a8cSJohannes Berg le16_add_cpu(&cmd.ssn, 1); 93399448a8cSJohannes Berg 93499448a8cSJohannes Berg WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd), 93599448a8cSJohannes Berg "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo); 93699448a8cSJohannes Berg 93799448a8cSJohannes Berg return inc_ssn; 93899448a8cSJohannes Berg } 93999448a8cSJohannes Berg 940b3a87f11SJohannes Berg static void iwl_mvm_change_queue_tid(struct iwl_mvm *mvm, int queue) 94119aefa45SLiad Kaufman { 94219aefa45SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 94319aefa45SLiad Kaufman .scd_queue = queue, 94419aefa45SLiad Kaufman .action = SCD_CFG_UPDATE_QUEUE_TID, 94519aefa45SLiad Kaufman }; 94619aefa45SLiad Kaufman int tid; 94719aefa45SLiad Kaufman unsigned long tid_bitmap; 94819aefa45SLiad Kaufman int ret; 94919aefa45SLiad Kaufman 95019aefa45SLiad Kaufman lockdep_assert_held(&mvm->mutex); 95119aefa45SLiad Kaufman 952bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 953bb49701bSSara Sharon return; 954bb49701bSSara Sharon 95519aefa45SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 95619aefa45SLiad Kaufman 95719aefa45SLiad Kaufman if (WARN(!tid_bitmap, "TXQ %d has no tids assigned to it\n", queue)) 95819aefa45SLiad Kaufman return; 95919aefa45SLiad Kaufman 96019aefa45SLiad Kaufman /* Find any TID for queue */ 96119aefa45SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 96219aefa45SLiad Kaufman cmd.tid = tid; 96319aefa45SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 96419aefa45SLiad Kaufman 96519aefa45SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 966341ca402SLiad Kaufman if (ret) { 96719aefa45SLiad Kaufman IWL_ERR(mvm, "Failed to update owner of TXQ %d (ret=%d)\n", 96819aefa45SLiad Kaufman queue, ret); 969341ca402SLiad Kaufman return; 970341ca402SLiad Kaufman } 971341ca402SLiad Kaufman 972341ca402SLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 97319aefa45SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Changed TXQ %d ownership to tid %d\n", 97419aefa45SLiad Kaufman queue, tid); 97519aefa45SLiad Kaufman } 97619aefa45SLiad Kaufman 9779f9af3d7SLiad Kaufman static void iwl_mvm_unshare_queue(struct iwl_mvm *mvm, int queue) 9789f9af3d7SLiad Kaufman { 9799f9af3d7SLiad Kaufman struct ieee80211_sta *sta; 9809f9af3d7SLiad Kaufman struct iwl_mvm_sta *mvmsta; 981806911daSSharon Dvir u8 sta_id; 9829f9af3d7SLiad Kaufman int tid = -1; 9839f9af3d7SLiad Kaufman unsigned long tid_bitmap; 9849f9af3d7SLiad Kaufman unsigned int wdg_timeout; 9859f9af3d7SLiad Kaufman int ssn; 9869f9af3d7SLiad Kaufman int ret = true; 9879f9af3d7SLiad Kaufman 988bb49701bSSara Sharon /* queue sharing is disabled on new TX path */ 989bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 990bb49701bSSara Sharon return; 991bb49701bSSara Sharon 9929f9af3d7SLiad Kaufman lockdep_assert_held(&mvm->mutex); 9939f9af3d7SLiad Kaufman 9949f9af3d7SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 9959f9af3d7SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 9969f9af3d7SLiad Kaufman 9979f9af3d7SLiad Kaufman /* Find TID for queue, and make sure it is the only one on the queue */ 9989f9af3d7SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 9999f9af3d7SLiad Kaufman if (tid_bitmap != BIT(tid)) { 10009f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to unshare q %d, active tids=0x%lx\n", 10019f9af3d7SLiad Kaufman queue, tid_bitmap); 10029f9af3d7SLiad Kaufman return; 10039f9af3d7SLiad Kaufman } 10049f9af3d7SLiad Kaufman 10059f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Unsharing TXQ %d, keeping tid %d\n", queue, 10069f9af3d7SLiad Kaufman tid); 10079f9af3d7SLiad Kaufman 10089f9af3d7SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 10099f9af3d7SLiad Kaufman lockdep_is_held(&mvm->mutex)); 10109f9af3d7SLiad Kaufman 10119f9af3d7SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 10129f9af3d7SLiad Kaufman return; 10139f9af3d7SLiad Kaufman 10149f9af3d7SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 10159f9af3d7SLiad Kaufman wdg_timeout = iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 10169f9af3d7SLiad Kaufman 10179f9af3d7SLiad Kaufman ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 10189f9af3d7SLiad Kaufman 1019cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, 10209f9af3d7SLiad Kaufman tid_to_mac80211_ac[tid], ssn, 1021cfbc6c4cSSara Sharon wdg_timeout, true, 1022cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 10239f9af3d7SLiad Kaufman if (ret) { 10249f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to redirect TXQ %d\n", queue); 10259f9af3d7SLiad Kaufman return; 10269f9af3d7SLiad Kaufman } 10279f9af3d7SLiad Kaufman 10289f9af3d7SLiad Kaufman /* If aggs should be turned back on - do it */ 10299f9af3d7SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) { 10309cd70e80SEmmanuel Grumbach struct iwl_mvm_add_sta_cmd cmd = {0}; 10319f9af3d7SLiad Kaufman 10329f9af3d7SLiad Kaufman mvmsta->tid_disable_agg &= ~BIT(tid); 10339f9af3d7SLiad Kaufman 10349f9af3d7SLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 10359f9af3d7SLiad Kaufman cmd.sta_id = mvmsta->sta_id; 10369f9af3d7SLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 10379f9af3d7SLiad Kaufman cmd.modify_mask = STA_MODIFY_TID_DISABLE_TX; 10389f9af3d7SLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 10399f9af3d7SLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 10409f9af3d7SLiad Kaufman 10419f9af3d7SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 10429f9af3d7SLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), &cmd); 10439f9af3d7SLiad Kaufman if (!ret) { 10449f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 10459f9af3d7SLiad Kaufman "TXQ #%d is now aggregated again\n", 10469f9af3d7SLiad Kaufman queue); 10479f9af3d7SLiad Kaufman 10489f9af3d7SLiad Kaufman /* Mark queue intenally as aggregating again */ 10499f9af3d7SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, false); 10509f9af3d7SLiad Kaufman } 10519f9af3d7SLiad Kaufman } 10529f9af3d7SLiad Kaufman 10539f9af3d7SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 10549f9af3d7SLiad Kaufman } 10559f9af3d7SLiad Kaufman 105699448a8cSJohannes Berg /* 105799448a8cSJohannes Berg * Remove inactive TIDs of a given queue. 105899448a8cSJohannes Berg * If all queue TIDs are inactive - mark the queue as inactive 105999448a8cSJohannes Berg * If only some the queue TIDs are inactive - unmap them from the queue 1060724fe771SJohannes Berg * 1061724fe771SJohannes Berg * Returns %true if all TIDs were removed and the queue could be reused. 106299448a8cSJohannes Berg */ 1063724fe771SJohannes Berg static bool iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm, 106499448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta, int queue, 106590d2d94cSJohannes Berg unsigned long tid_bitmap, 1066b3a87f11SJohannes Berg unsigned long *unshare_queues, 1067b3a87f11SJohannes Berg unsigned long *changetid_queues) 106899448a8cSJohannes Berg { 1069af3cdfd3SJakub Kicinski unsigned int tid; 107099448a8cSJohannes Berg 107199448a8cSJohannes Berg lockdep_assert_held(&mvmsta->lock); 1072f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 107399448a8cSJohannes Berg 107499448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1075724fe771SJohannes Berg return false; 107699448a8cSJohannes Berg 107799448a8cSJohannes Berg /* Go over all non-active TIDs, incl. IWL_MAX_TID_COUNT (for mgmt) */ 107899448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 107999448a8cSJohannes Berg /* If some TFDs are still queued - don't mark TID as inactive */ 108099448a8cSJohannes Berg if (iwl_mvm_tid_queued(mvm, &mvmsta->tid_data[tid])) 108199448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 108299448a8cSJohannes Berg 108399448a8cSJohannes Berg /* Don't mark as inactive any TID that has an active BA */ 108499448a8cSJohannes Berg if (mvmsta->tid_data[tid].state != IWL_AGG_OFF) 108599448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 108699448a8cSJohannes Berg } 108799448a8cSJohannes Berg 1088724fe771SJohannes Berg /* If all TIDs in the queue are inactive - return it can be reused */ 108999448a8cSJohannes Berg if (tid_bitmap == mvm->queue_info[queue].tid_bitmap) { 1090724fe771SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Queue %d is inactive\n", queue); 1091724fe771SJohannes Berg return true; 109299448a8cSJohannes Berg } 109399448a8cSJohannes Berg 109499448a8cSJohannes Berg /* 109599448a8cSJohannes Berg * If we are here, this is a shared queue and not all TIDs timed-out. 109699448a8cSJohannes Berg * Remove the ones that did. 109799448a8cSJohannes Berg */ 109899448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1099d4530f63SJohannes Berg u16 q_tid_bitmap; 110099448a8cSJohannes Berg 110199448a8cSJohannes Berg mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 110299448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 110399448a8cSJohannes Berg 1104d4530f63SJohannes Berg q_tid_bitmap = mvm->queue_info[queue].tid_bitmap; 1105b3a87f11SJohannes Berg 1106b3a87f11SJohannes Berg /* 1107b3a87f11SJohannes Berg * We need to take into account a situation in which a TXQ was 1108b3a87f11SJohannes Berg * allocated to TID x, and then turned shared by adding TIDs y 1109b3a87f11SJohannes Berg * and z. If TID x becomes inactive and is removed from the TXQ, 1110b3a87f11SJohannes Berg * ownership must be given to one of the remaining TIDs. 1111b3a87f11SJohannes Berg * This is mainly because if TID x continues - a new queue can't 1112b3a87f11SJohannes Berg * be allocated for it as long as it is an owner of another TXQ. 1113b3a87f11SJohannes Berg * 1114b3a87f11SJohannes Berg * Mark this queue in the right bitmap, we'll send the command 1115b3a87f11SJohannes Berg * to the firmware later. 1116b3a87f11SJohannes Berg */ 1117d4530f63SJohannes Berg if (!(q_tid_bitmap & BIT(mvm->queue_info[queue].txq_tid))) 1118b3a87f11SJohannes Berg set_bit(queue, changetid_queues); 1119b3a87f11SJohannes Berg 112099448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 112199448a8cSJohannes Berg "Removing inactive TID %d from shared Q:%d\n", 112299448a8cSJohannes Berg tid, queue); 112399448a8cSJohannes Berg } 112499448a8cSJohannes Berg 112599448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 112699448a8cSJohannes Berg "TXQ #%d left with tid bitmap 0x%x\n", queue, 112799448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap); 112899448a8cSJohannes Berg 112999448a8cSJohannes Berg /* 113099448a8cSJohannes Berg * There may be different TIDs with the same mac queues, so make 113199448a8cSJohannes Berg * sure all TIDs have existing corresponding mac queues enabled 113299448a8cSJohannes Berg */ 113399448a8cSJohannes Berg tid_bitmap = mvm->queue_info[queue].tid_bitmap; 113499448a8cSJohannes Berg 113599448a8cSJohannes Berg /* If the queue is marked as shared - "unshare" it */ 11361c14089eSJohannes Berg if (hweight16(mvm->queue_info[queue].tid_bitmap) == 1 && 113799448a8cSJohannes Berg mvm->queue_info[queue].status == IWL_MVM_QUEUE_SHARED) { 113899448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Marking Q:%d for reconfig\n", 113999448a8cSJohannes Berg queue); 114090d2d94cSJohannes Berg set_bit(queue, unshare_queues); 114199448a8cSJohannes Berg } 1142724fe771SJohannes Berg 1143724fe771SJohannes Berg return false; 114499448a8cSJohannes Berg } 114599448a8cSJohannes Berg 1146724fe771SJohannes Berg /* 1147724fe771SJohannes Berg * Check for inactivity - this includes checking if any queue 1148724fe771SJohannes Berg * can be unshared and finding one (and only one) that can be 1149724fe771SJohannes Berg * reused. 1150724fe771SJohannes Berg * This function is also invoked as a sort of clean-up task, 1151724fe771SJohannes Berg * in which case @alloc_for_sta is IWL_MVM_INVALID_STA. 1152724fe771SJohannes Berg * 1153724fe771SJohannes Berg * Returns the queue number, or -ENOSPC. 1154724fe771SJohannes Berg */ 1155724fe771SJohannes Berg static int iwl_mvm_inactivity_check(struct iwl_mvm *mvm, u8 alloc_for_sta) 115699448a8cSJohannes Berg { 115799448a8cSJohannes Berg unsigned long now = jiffies; 115890d2d94cSJohannes Berg unsigned long unshare_queues = 0; 1159b3a87f11SJohannes Berg unsigned long changetid_queues = 0; 1160724fe771SJohannes Berg int i, ret, free_queue = -ENOSPC; 1161cfbc6c4cSSara Sharon struct ieee80211_sta *queue_owner = NULL; 116299448a8cSJohannes Berg 1163df2a2245SJohannes Berg lockdep_assert_held(&mvm->mutex); 1164df2a2245SJohannes Berg 116599448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1166724fe771SJohannes Berg return -ENOSPC; 116799448a8cSJohannes Berg 116899448a8cSJohannes Berg rcu_read_lock(); 116999448a8cSJohannes Berg 1170459ab045SJohannes Berg /* we skip the CMD queue below by starting at 1 */ 1171459ab045SJohannes Berg BUILD_BUG_ON(IWL_MVM_DQA_CMD_QUEUE != 0); 1172459ab045SJohannes Berg 1173459ab045SJohannes Berg for (i = 1; i < IWL_MAX_HW_QUEUES; i++) { 117499448a8cSJohannes Berg struct ieee80211_sta *sta; 117599448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta; 117699448a8cSJohannes Berg u8 sta_id; 117799448a8cSJohannes Berg int tid; 117899448a8cSJohannes Berg unsigned long inactive_tid_bitmap = 0; 117999448a8cSJohannes Berg unsigned long queue_tid_bitmap; 118099448a8cSJohannes Berg 118199448a8cSJohannes Berg queue_tid_bitmap = mvm->queue_info[i].tid_bitmap; 1182459ab045SJohannes Berg if (!queue_tid_bitmap) 1183459ab045SJohannes Berg continue; 118499448a8cSJohannes Berg 118599448a8cSJohannes Berg /* If TXQ isn't in active use anyway - nothing to do here... */ 118699448a8cSJohannes Berg if (mvm->queue_info[i].status != IWL_MVM_QUEUE_READY && 1187459ab045SJohannes Berg mvm->queue_info[i].status != IWL_MVM_QUEUE_SHARED) 118899448a8cSJohannes Berg continue; 118999448a8cSJohannes Berg 119099448a8cSJohannes Berg /* Check to see if there are inactive TIDs on this queue */ 119199448a8cSJohannes Berg for_each_set_bit(tid, &queue_tid_bitmap, 119299448a8cSJohannes Berg IWL_MAX_TID_COUNT + 1) { 119399448a8cSJohannes Berg if (time_after(mvm->queue_info[i].last_frame_time[tid] + 119499448a8cSJohannes Berg IWL_MVM_DQA_QUEUE_TIMEOUT, now)) 119599448a8cSJohannes Berg continue; 119699448a8cSJohannes Berg 119799448a8cSJohannes Berg inactive_tid_bitmap |= BIT(tid); 119899448a8cSJohannes Berg } 119999448a8cSJohannes Berg 120099448a8cSJohannes Berg /* If all TIDs are active - finish check on this queue */ 120199448a8cSJohannes Berg if (!inactive_tid_bitmap) 120299448a8cSJohannes Berg continue; 120399448a8cSJohannes Berg 120499448a8cSJohannes Berg /* 120599448a8cSJohannes Berg * If we are here - the queue hadn't been served recently and is 120699448a8cSJohannes Berg * in use 120799448a8cSJohannes Berg */ 120899448a8cSJohannes Berg 120999448a8cSJohannes Berg sta_id = mvm->queue_info[i].ra_sta_id; 121099448a8cSJohannes Berg sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 121199448a8cSJohannes Berg 121299448a8cSJohannes Berg /* 121399448a8cSJohannes Berg * If the STA doesn't exist anymore, it isn't an error. It could 121499448a8cSJohannes Berg * be that it was removed since getting the queues, and in this 121599448a8cSJohannes Berg * case it should've inactivated its queues anyway. 121699448a8cSJohannes Berg */ 121799448a8cSJohannes Berg if (IS_ERR_OR_NULL(sta)) 121899448a8cSJohannes Berg continue; 121999448a8cSJohannes Berg 122099448a8cSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 122199448a8cSJohannes Berg 1222f3f240f9SJohannes Berg spin_lock_bh(&mvmsta->lock); 1223724fe771SJohannes Berg ret = iwl_mvm_remove_inactive_tids(mvm, mvmsta, i, 122490d2d94cSJohannes Berg inactive_tid_bitmap, 1225b3a87f11SJohannes Berg &unshare_queues, 1226b3a87f11SJohannes Berg &changetid_queues); 1227e6d419f9SJohannes Berg if (ret && free_queue < 0) { 1228cfbc6c4cSSara Sharon queue_owner = sta; 1229e6d419f9SJohannes Berg free_queue = i; 1230cfbc6c4cSSara Sharon } 1231459ab045SJohannes Berg /* only unlock sta lock - we still need the queue info lock */ 1232f3f240f9SJohannes Berg spin_unlock_bh(&mvmsta->lock); 123399448a8cSJohannes Berg } 123499448a8cSJohannes Berg 1235df2a2245SJohannes Berg 1236df2a2245SJohannes Berg /* Reconfigure queues requiring reconfiguation */ 123790d2d94cSJohannes Berg for_each_set_bit(i, &unshare_queues, IWL_MAX_HW_QUEUES) 123890d2d94cSJohannes Berg iwl_mvm_unshare_queue(mvm, i); 1239b3a87f11SJohannes Berg for_each_set_bit(i, &changetid_queues, IWL_MAX_HW_QUEUES) 1240b3a87f11SJohannes Berg iwl_mvm_change_queue_tid(mvm, i); 1241724fe771SJohannes Berg 1242fbb1461aSJohannes Berg rcu_read_unlock(); 1243fbb1461aSJohannes Berg 1244724fe771SJohannes Berg if (free_queue >= 0 && alloc_for_sta != IWL_MVM_INVALID_STA) { 1245cfbc6c4cSSara Sharon ret = iwl_mvm_free_inactive_queue(mvm, free_queue, queue_owner, 1246724fe771SJohannes Berg alloc_for_sta); 1247fbb1461aSJohannes Berg if (ret) 1248724fe771SJohannes Berg return ret; 1249724fe771SJohannes Berg } 1250724fe771SJohannes Berg 1251724fe771SJohannes Berg return free_queue; 125299448a8cSJohannes Berg } 125399448a8cSJohannes Berg 1254c20e08b0SJohannes Berg static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm, 1255cfbc6c4cSSara Sharon struct ieee80211_sta *sta, u8 ac, int tid) 1256c20e08b0SJohannes Berg { 1257c20e08b0SJohannes Berg struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1258c20e08b0SJohannes Berg struct iwl_trans_txq_scd_cfg cfg = { 1259c20e08b0SJohannes Berg .fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac), 1260c20e08b0SJohannes Berg .sta_id = mvmsta->sta_id, 1261c20e08b0SJohannes Berg .tid = tid, 1262c20e08b0SJohannes Berg .frame_limit = IWL_FRAME_LIMIT, 1263c20e08b0SJohannes Berg }; 1264c20e08b0SJohannes Berg unsigned int wdg_timeout = 1265c20e08b0SJohannes Berg iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 1266c20e08b0SJohannes Berg int queue = -1; 1267c6ce1c74SJohannes Berg u16 queue_tmp; 1268c20e08b0SJohannes Berg unsigned long disable_agg_tids = 0; 1269c20e08b0SJohannes Berg enum iwl_mvm_agg_state queue_state; 1270c20e08b0SJohannes Berg bool shared_queue = false, inc_ssn; 1271c20e08b0SJohannes Berg int ssn; 1272c20e08b0SJohannes Berg unsigned long tfd_queue_mask; 1273c20e08b0SJohannes Berg int ret; 1274c20e08b0SJohannes Berg 1275c20e08b0SJohannes Berg lockdep_assert_held(&mvm->mutex); 1276c20e08b0SJohannes Berg 1277c20e08b0SJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1278c20e08b0SJohannes Berg return iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 1279c20e08b0SJohannes Berg 1280c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1281c20e08b0SJohannes Berg tfd_queue_mask = mvmsta->tfd_queue_msk; 128235739348SSara Sharon ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 1283c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1284c20e08b0SJohannes Berg 1285cfbc6c4cSSara Sharon if (tid == IWL_MAX_TID_COUNT) { 1286c20e08b0SJohannes Berg queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 1287c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_MGMT_QUEUE, 1288c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_MGMT_QUEUE); 1289c20e08b0SJohannes Berg if (queue >= IWL_MVM_DQA_MIN_MGMT_QUEUE) 1290c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Found free MGMT queue #%d\n", 1291c20e08b0SJohannes Berg queue); 1292c20e08b0SJohannes Berg 1293c20e08b0SJohannes Berg /* If no such queue is found, we'll use a DATA queue instead */ 1294c20e08b0SJohannes Berg } 1295c20e08b0SJohannes Berg 1296c20e08b0SJohannes Berg if ((queue < 0 && mvmsta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) && 1297c20e08b0SJohannes Berg (mvm->queue_info[mvmsta->reserved_queue].status == 1298724fe771SJohannes Berg IWL_MVM_QUEUE_RESERVED)) { 1299c20e08b0SJohannes Berg queue = mvmsta->reserved_queue; 1300c20e08b0SJohannes Berg mvm->queue_info[queue].reserved = true; 1301c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Using reserved queue #%d\n", queue); 1302c20e08b0SJohannes Berg } 1303c20e08b0SJohannes Berg 1304c20e08b0SJohannes Berg if (queue < 0) 1305c20e08b0SJohannes Berg queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 1306c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 1307c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 1308724fe771SJohannes Berg if (queue < 0) { 1309724fe771SJohannes Berg /* try harder - perhaps kill an inactive queue */ 1310724fe771SJohannes Berg queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id); 1311c20e08b0SJohannes Berg } 1312c20e08b0SJohannes Berg 1313c20e08b0SJohannes Berg /* No free queue - we'll have to share */ 1314c20e08b0SJohannes Berg if (queue <= 0) { 1315c20e08b0SJohannes Berg queue = iwl_mvm_get_shared_queue(mvm, tfd_queue_mask, ac); 1316c20e08b0SJohannes Berg if (queue > 0) { 1317c20e08b0SJohannes Berg shared_queue = true; 1318c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_SHARED; 1319c20e08b0SJohannes Berg } 1320c20e08b0SJohannes Berg } 1321c20e08b0SJohannes Berg 1322c20e08b0SJohannes Berg /* 1323c20e08b0SJohannes Berg * Mark TXQ as ready, even though it hasn't been fully configured yet, 1324c20e08b0SJohannes Berg * to make sure no one else takes it. 1325c20e08b0SJohannes Berg * This will allow avoiding re-acquiring the lock at the end of the 1326c20e08b0SJohannes Berg * configuration. On error we'll mark it back as free. 1327c20e08b0SJohannes Berg */ 1328c20e08b0SJohannes Berg if (queue > 0 && !shared_queue) 1329c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 1330c20e08b0SJohannes Berg 1331c20e08b0SJohannes Berg /* This shouldn't happen - out of queues */ 1332c20e08b0SJohannes Berg if (WARN_ON(queue <= 0)) { 1333c20e08b0SJohannes Berg IWL_ERR(mvm, "No available queues for tid %d on sta_id %d\n", 1334c20e08b0SJohannes Berg tid, cfg.sta_id); 1335c20e08b0SJohannes Berg return queue; 1336c20e08b0SJohannes Berg } 1337c20e08b0SJohannes Berg 1338c20e08b0SJohannes Berg /* 1339c20e08b0SJohannes Berg * Actual en/disablement of aggregations is through the ADD_STA HCMD, 1340c20e08b0SJohannes Berg * but for configuring the SCD to send A-MPDUs we need to mark the queue 1341c20e08b0SJohannes Berg * as aggregatable. 1342c20e08b0SJohannes Berg * Mark all DATA queues as allowing to be aggregated at some point 1343c20e08b0SJohannes Berg */ 1344c20e08b0SJohannes Berg cfg.aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1345c20e08b0SJohannes Berg queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE); 1346c20e08b0SJohannes Berg 1347c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 1348c20e08b0SJohannes Berg "Allocating %squeue #%d to sta %d on tid %d\n", 1349c20e08b0SJohannes Berg shared_queue ? "shared " : "", queue, 1350c20e08b0SJohannes Berg mvmsta->sta_id, tid); 1351c20e08b0SJohannes Berg 1352c20e08b0SJohannes Berg if (shared_queue) { 1353c20e08b0SJohannes Berg /* Disable any open aggs on this queue */ 1354c20e08b0SJohannes Berg disable_agg_tids = iwl_mvm_get_queue_agg_tids(mvm, queue); 1355c20e08b0SJohannes Berg 1356c20e08b0SJohannes Berg if (disable_agg_tids) { 1357c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Disabling aggs on queue %d\n", 1358c20e08b0SJohannes Berg queue); 1359c20e08b0SJohannes Berg iwl_mvm_invalidate_sta_queue(mvm, queue, 1360c20e08b0SJohannes Berg disable_agg_tids, false); 1361c20e08b0SJohannes Berg } 1362c20e08b0SJohannes Berg } 1363c20e08b0SJohannes Berg 1364cfbc6c4cSSara Sharon inc_ssn = iwl_mvm_enable_txq(mvm, sta, queue, ssn, &cfg, wdg_timeout); 1365c20e08b0SJohannes Berg 1366c20e08b0SJohannes Berg /* 1367c20e08b0SJohannes Berg * Mark queue as shared in transport if shared 1368c20e08b0SJohannes Berg * Note this has to be done after queue enablement because enablement 1369c20e08b0SJohannes Berg * can also set this value, and there is no indication there to shared 1370c20e08b0SJohannes Berg * queues 1371c20e08b0SJohannes Berg */ 1372c20e08b0SJohannes Berg if (shared_queue) 1373c20e08b0SJohannes Berg iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 1374c20e08b0SJohannes Berg 1375c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1376c20e08b0SJohannes Berg /* 1377c20e08b0SJohannes Berg * This looks racy, but it is not. We have only one packet for 1378c20e08b0SJohannes Berg * this ra/tid in our Tx path since we stop the Qdisc when we 1379c20e08b0SJohannes Berg * need to allocate a new TFD queue. 1380c20e08b0SJohannes Berg */ 138135739348SSara Sharon if (inc_ssn) { 1382c20e08b0SJohannes Berg mvmsta->tid_data[tid].seq_number += 0x10; 138335739348SSara Sharon ssn = (ssn + 1) & IEEE80211_SCTL_SEQ; 138435739348SSara Sharon } 1385c20e08b0SJohannes Berg mvmsta->tid_data[tid].txq_id = queue; 1386c20e08b0SJohannes Berg mvmsta->tfd_queue_msk |= BIT(queue); 1387c20e08b0SJohannes Berg queue_state = mvmsta->tid_data[tid].state; 1388c20e08b0SJohannes Berg 1389c20e08b0SJohannes Berg if (mvmsta->reserved_queue == queue) 1390c20e08b0SJohannes Berg mvmsta->reserved_queue = IEEE80211_INVAL_HW_QUEUE; 1391c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1392c20e08b0SJohannes Berg 1393c20e08b0SJohannes Berg if (!shared_queue) { 1394c20e08b0SJohannes Berg ret = iwl_mvm_sta_send_to_fw(mvm, sta, true, STA_MODIFY_QUEUES); 1395c20e08b0SJohannes Berg if (ret) 1396c20e08b0SJohannes Berg goto out_err; 1397c20e08b0SJohannes Berg 1398c20e08b0SJohannes Berg /* If we need to re-enable aggregations... */ 1399c20e08b0SJohannes Berg if (queue_state == IWL_AGG_ON) { 1400c20e08b0SJohannes Berg ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 1401c20e08b0SJohannes Berg if (ret) 1402c20e08b0SJohannes Berg goto out_err; 1403c20e08b0SJohannes Berg } 1404c20e08b0SJohannes Berg } else { 1405c20e08b0SJohannes Berg /* Redirect queue, if needed */ 1406cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, ac, ssn, 1407cfbc6c4cSSara Sharon wdg_timeout, false, 1408cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 1409c20e08b0SJohannes Berg if (ret) 1410c20e08b0SJohannes Berg goto out_err; 1411c20e08b0SJohannes Berg } 1412c20e08b0SJohannes Berg 1413c20e08b0SJohannes Berg return 0; 1414c20e08b0SJohannes Berg 1415c20e08b0SJohannes Berg out_err: 1416c6ce1c74SJohannes Berg queue_tmp = queue; 1417c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, sta, mvmsta->sta_id, &queue_tmp, tid); 1418c20e08b0SJohannes Berg 1419c20e08b0SJohannes Berg return ret; 1420c20e08b0SJohannes Berg } 1421c20e08b0SJohannes Berg 142224afba76SLiad Kaufman void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk) 142324afba76SLiad Kaufman { 142424afba76SLiad Kaufman struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, 142524afba76SLiad Kaufman add_stream_wk); 142624afba76SLiad Kaufman 142724afba76SLiad Kaufman mutex_lock(&mvm->mutex); 142824afba76SLiad Kaufman 1429724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 14309f9af3d7SLiad Kaufman 1431cfbc6c4cSSara Sharon while (!list_empty(&mvm->add_stream_txqs)) { 1432cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq; 1433cfbc6c4cSSara Sharon struct ieee80211_txq *txq; 1434cfbc6c4cSSara Sharon u8 tid; 143524afba76SLiad Kaufman 1436cfbc6c4cSSara Sharon mvmtxq = list_first_entry(&mvm->add_stream_txqs, 1437cfbc6c4cSSara Sharon struct iwl_mvm_txq, list); 143824afba76SLiad Kaufman 1439cfbc6c4cSSara Sharon txq = container_of((void *)mvmtxq, struct ieee80211_txq, 1440cfbc6c4cSSara Sharon drv_priv); 1441cfbc6c4cSSara Sharon tid = txq->tid; 1442cfbc6c4cSSara Sharon if (tid == IEEE80211_NUM_TIDS) 1443cfbc6c4cSSara Sharon tid = IWL_MAX_TID_COUNT; 1444cfbc6c4cSSara Sharon 14453d1d87abSJohannes Berg /* 14463d1d87abSJohannes Berg * We can't really do much here, but if this fails we can't 14473d1d87abSJohannes Berg * transmit anyway - so just don't transmit the frame etc. 14483d1d87abSJohannes Berg * and let them back up ... we've tried our best to allocate 14493d1d87abSJohannes Berg * a queue in the function itself. 14503d1d87abSJohannes Berg */ 14513d1d87abSJohannes Berg if (iwl_mvm_sta_alloc_queue(mvm, txq->sta, txq->ac, tid)) { 14523d1d87abSJohannes Berg list_del_init(&mvmtxq->list); 14533d1d87abSJohannes Berg continue; 14543d1d87abSJohannes Berg } 14553d1d87abSJohannes Berg 1456cfbc6c4cSSara Sharon list_del_init(&mvmtxq->list); 1457f5ae2f93SJohannes Berg local_bh_disable(); 1458cfbc6c4cSSara Sharon iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1459f5ae2f93SJohannes Berg local_bh_enable(); 146024afba76SLiad Kaufman } 146124afba76SLiad Kaufman 146224afba76SLiad Kaufman mutex_unlock(&mvm->mutex); 146324afba76SLiad Kaufman } 146424afba76SLiad Kaufman 146524afba76SLiad Kaufman static int iwl_mvm_reserve_sta_stream(struct iwl_mvm *mvm, 1466d5216a28SLiad Kaufman struct ieee80211_sta *sta, 1467d5216a28SLiad Kaufman enum nl80211_iftype vif_type) 146824afba76SLiad Kaufman { 146924afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 147024afba76SLiad Kaufman int queue; 147124afba76SLiad Kaufman 1472396952eeSSara Sharon /* queue reserving is disabled on new TX path */ 1473396952eeSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1474396952eeSSara Sharon return 0; 1475396952eeSSara Sharon 1476724fe771SJohannes Berg /* run the general cleanup/unsharing of queues */ 1477724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 14789794c64fSLiad Kaufman 147924afba76SLiad Kaufman /* Make sure we have free resources for this STA */ 1480d5216a28SLiad Kaufman if (vif_type == NL80211_IFTYPE_STATION && !sta->tdls && 14811c14089eSJohannes Berg !mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].tid_bitmap && 1482cf961e16SLiad Kaufman (mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].status == 1483cf961e16SLiad Kaufman IWL_MVM_QUEUE_FREE)) 1484d5216a28SLiad Kaufman queue = IWL_MVM_DQA_BSS_CLIENT_QUEUE; 1485d5216a28SLiad Kaufman else 14869794c64fSLiad Kaufman queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 14879794c64fSLiad Kaufman IWL_MVM_DQA_MIN_DATA_QUEUE, 148824afba76SLiad Kaufman IWL_MVM_DQA_MAX_DATA_QUEUE); 148924afba76SLiad Kaufman if (queue < 0) { 1490724fe771SJohannes Berg /* try again - this time kick out a queue if needed */ 1491724fe771SJohannes Berg queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id); 1492724fe771SJohannes Berg if (queue < 0) { 149324afba76SLiad Kaufman IWL_ERR(mvm, "No available queues for new station\n"); 149424afba76SLiad Kaufman return -ENOSPC; 1495724fe771SJohannes Berg } 149624afba76SLiad Kaufman } 1497cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_RESERVED; 149824afba76SLiad Kaufman 149924afba76SLiad Kaufman mvmsta->reserved_queue = queue; 150024afba76SLiad Kaufman 150124afba76SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Reserving data queue #%d for sta_id %d\n", 150224afba76SLiad Kaufman queue, mvmsta->sta_id); 150324afba76SLiad Kaufman 150424afba76SLiad Kaufman return 0; 150524afba76SLiad Kaufman } 150624afba76SLiad Kaufman 15078d98ae6eSLiad Kaufman /* 15088d98ae6eSLiad Kaufman * In DQA mode, after a HW restart the queues should be allocated as before, in 15098d98ae6eSLiad Kaufman * order to avoid race conditions when there are shared queues. This function 15108d98ae6eSLiad Kaufman * does the re-mapping and queue allocation. 15118d98ae6eSLiad Kaufman * 15128d98ae6eSLiad Kaufman * Note that re-enabling aggregations isn't done in this function. 15138d98ae6eSLiad Kaufman */ 15148d98ae6eSLiad Kaufman static void iwl_mvm_realloc_queues_after_restart(struct iwl_mvm *mvm, 1515cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 15168d98ae6eSLiad Kaufman { 1517cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1518cfbc6c4cSSara Sharon unsigned int wdg = 15198d98ae6eSLiad Kaufman iwl_mvm_get_wd_timeout(mvm, mvm_sta->vif, false, false); 15208d98ae6eSLiad Kaufman int i; 15218d98ae6eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 15228d98ae6eSLiad Kaufman .sta_id = mvm_sta->sta_id, 15238d98ae6eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 15248d98ae6eSLiad Kaufman }; 15258d98ae6eSLiad Kaufman 152603c902bfSJohannes Berg /* Make sure reserved queue is still marked as such (if allocated) */ 152703c902bfSJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) 15288d98ae6eSLiad Kaufman mvm->queue_info[mvm_sta->reserved_queue].status = 15298d98ae6eSLiad Kaufman IWL_MVM_QUEUE_RESERVED; 15308d98ae6eSLiad Kaufman 15318d98ae6eSLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 15328d98ae6eSLiad Kaufman struct iwl_mvm_tid_data *tid_data = &mvm_sta->tid_data[i]; 15338d98ae6eSLiad Kaufman int txq_id = tid_data->txq_id; 15348d98ae6eSLiad Kaufman int ac; 15358d98ae6eSLiad Kaufman 15366862fceeSSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 15378d98ae6eSLiad Kaufman continue; 15388d98ae6eSLiad Kaufman 15398d98ae6eSLiad Kaufman ac = tid_to_mac80211_ac[i]; 15408d98ae6eSLiad Kaufman 1541310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1542310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 1543310181ecSSara Sharon "Re-mapping sta %d tid %d\n", 1544310181ecSSara Sharon mvm_sta->sta_id, i); 154509369983SJohannes Berg txq_id = iwl_mvm_tvqm_enable_txq(mvm, sta, 154609369983SJohannes Berg mvm_sta->sta_id, 1547cfbc6c4cSSara Sharon i, wdg); 154891cf5dedSJohannes Berg /* 154991cf5dedSJohannes Berg * on failures, just set it to IWL_MVM_INVALID_QUEUE 155091cf5dedSJohannes Berg * to try again later, we have no other good way of 155191cf5dedSJohannes Berg * failing here 155291cf5dedSJohannes Berg */ 155391cf5dedSJohannes Berg if (txq_id < 0) 155491cf5dedSJohannes Berg txq_id = IWL_MVM_INVALID_QUEUE; 1555310181ecSSara Sharon tid_data->txq_id = txq_id; 15565d39051aSLiad Kaufman 15575d39051aSLiad Kaufman /* 15585d39051aSLiad Kaufman * Since we don't set the seq number after reset, and HW 15595d39051aSLiad Kaufman * sets it now, FW reset will cause the seq num to start 15605d39051aSLiad Kaufman * at 0 again, so driver will need to update it 15615d39051aSLiad Kaufman * internally as well, so it keeps in sync with real val 15625d39051aSLiad Kaufman */ 15635d39051aSLiad Kaufman tid_data->seq_number = 0; 1564310181ecSSara Sharon } else { 1565310181ecSSara Sharon u16 seq = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 1566310181ecSSara Sharon 15678d98ae6eSLiad Kaufman cfg.tid = i; 1568cf6c6ea3SEmmanuel Grumbach cfg.fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac); 15698d98ae6eSLiad Kaufman cfg.aggregate = (txq_id >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1570310181ecSSara Sharon txq_id == 1571310181ecSSara Sharon IWL_MVM_DQA_BSS_CLIENT_QUEUE); 15728d98ae6eSLiad Kaufman 15738d98ae6eSLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 15748d98ae6eSLiad Kaufman "Re-mapping sta %d tid %d to queue %d\n", 15758d98ae6eSLiad Kaufman mvm_sta->sta_id, i, txq_id); 15768d98ae6eSLiad Kaufman 1577cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, txq_id, seq, &cfg, wdg); 15788d98ae6eSLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_READY; 15798d98ae6eSLiad Kaufman } 158034e10860SSara Sharon } 15818d98ae6eSLiad Kaufman } 15828d98ae6eSLiad Kaufman 1583732d06e9SShaul Triebitz static int iwl_mvm_add_int_sta_common(struct iwl_mvm *mvm, 1584732d06e9SShaul Triebitz struct iwl_mvm_int_sta *sta, 1585732d06e9SShaul Triebitz const u8 *addr, 1586732d06e9SShaul Triebitz u16 mac_id, u16 color) 1587732d06e9SShaul Triebitz { 1588732d06e9SShaul Triebitz struct iwl_mvm_add_sta_cmd cmd; 1589732d06e9SShaul Triebitz int ret; 15903f497de9SLuca Coelho u32 status = ADD_STA_SUCCESS; 1591732d06e9SShaul Triebitz 1592732d06e9SShaul Triebitz lockdep_assert_held(&mvm->mutex); 1593732d06e9SShaul Triebitz 1594732d06e9SShaul Triebitz memset(&cmd, 0, sizeof(cmd)); 1595732d06e9SShaul Triebitz cmd.sta_id = sta->sta_id; 15962c2c3647SNathan Errera 1597971cbe50SJohannes Berg if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) >= 12 && 15982c2c3647SNathan Errera sta->type == IWL_STA_AUX_ACTIVITY) 15992c2c3647SNathan Errera cmd.mac_id_n_color = cpu_to_le32(mac_id); 16002c2c3647SNathan Errera else 1601732d06e9SShaul Triebitz cmd.mac_id_n_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mac_id, 1602732d06e9SShaul Triebitz color)); 16032c2c3647SNathan Errera 1604732d06e9SShaul Triebitz if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 1605732d06e9SShaul Triebitz cmd.station_type = sta->type; 1606732d06e9SShaul Triebitz 1607732d06e9SShaul Triebitz if (!iwl_mvm_has_new_tx_api(mvm)) 1608732d06e9SShaul Triebitz cmd.tfd_queue_msk = cpu_to_le32(sta->tfd_queue_msk); 1609732d06e9SShaul Triebitz cmd.tid_disable_tx = cpu_to_le16(0xffff); 1610732d06e9SShaul Triebitz 1611732d06e9SShaul Triebitz if (addr) 1612732d06e9SShaul Triebitz memcpy(cmd.addr, addr, ETH_ALEN); 1613732d06e9SShaul Triebitz 1614732d06e9SShaul Triebitz ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1615732d06e9SShaul Triebitz iwl_mvm_add_sta_cmd_size(mvm), 1616732d06e9SShaul Triebitz &cmd, &status); 1617732d06e9SShaul Triebitz if (ret) 1618732d06e9SShaul Triebitz return ret; 1619732d06e9SShaul Triebitz 1620732d06e9SShaul Triebitz switch (status & IWL_ADD_STA_STATUS_MASK) { 1621732d06e9SShaul Triebitz case ADD_STA_SUCCESS: 1622732d06e9SShaul Triebitz IWL_DEBUG_INFO(mvm, "Internal station added.\n"); 1623732d06e9SShaul Triebitz return 0; 1624732d06e9SShaul Triebitz default: 1625732d06e9SShaul Triebitz ret = -EIO; 1626732d06e9SShaul Triebitz IWL_ERR(mvm, "Add internal station failed, status=0x%x\n", 1627732d06e9SShaul Triebitz status); 1628732d06e9SShaul Triebitz break; 1629732d06e9SShaul Triebitz } 1630732d06e9SShaul Triebitz return ret; 1631732d06e9SShaul Triebitz } 1632732d06e9SShaul Triebitz 1633e705c121SKalle Valo int iwl_mvm_add_sta(struct iwl_mvm *mvm, 1634e705c121SKalle Valo struct ieee80211_vif *vif, 1635e705c121SKalle Valo struct ieee80211_sta *sta) 1636e705c121SKalle Valo { 1637e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1638e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1639a571f5f6SSara Sharon struct iwl_mvm_rxq_dup_data *dup_data; 1640e705c121SKalle Valo int i, ret, sta_id; 1641732d06e9SShaul Triebitz bool sta_update = false; 1642732d06e9SShaul Triebitz unsigned int sta_flags = 0; 1643e705c121SKalle Valo 1644e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1645e705c121SKalle Valo 1646e705c121SKalle Valo if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1647e705c121SKalle Valo sta_id = iwl_mvm_find_free_sta_id(mvm, 1648e705c121SKalle Valo ieee80211_vif_type_p2p(vif)); 1649e705c121SKalle Valo else 1650e705c121SKalle Valo sta_id = mvm_sta->sta_id; 1651e705c121SKalle Valo 16520ae98812SSara Sharon if (sta_id == IWL_MVM_INVALID_STA) 1653e705c121SKalle Valo return -ENOSPC; 1654e705c121SKalle Valo 1655e705c121SKalle Valo spin_lock_init(&mvm_sta->lock); 1656e705c121SKalle Valo 1657c8f54701SJohannes Berg /* if this is a HW restart re-alloc existing queues */ 1658c8f54701SJohannes Berg if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1659732d06e9SShaul Triebitz struct iwl_mvm_int_sta tmp_sta = { 1660732d06e9SShaul Triebitz .sta_id = sta_id, 1661732d06e9SShaul Triebitz .type = mvm_sta->sta_type, 1662732d06e9SShaul Triebitz }; 1663732d06e9SShaul Triebitz 1664732d06e9SShaul Triebitz /* 1665732d06e9SShaul Triebitz * First add an empty station since allocating 1666732d06e9SShaul Triebitz * a queue requires a valid station 1667732d06e9SShaul Triebitz */ 1668732d06e9SShaul Triebitz ret = iwl_mvm_add_int_sta_common(mvm, &tmp_sta, sta->addr, 1669732d06e9SShaul Triebitz mvmvif->id, mvmvif->color); 1670732d06e9SShaul Triebitz if (ret) 1671732d06e9SShaul Triebitz goto err; 1672732d06e9SShaul Triebitz 1673cfbc6c4cSSara Sharon iwl_mvm_realloc_queues_after_restart(mvm, sta); 1674732d06e9SShaul Triebitz sta_update = true; 1675732d06e9SShaul Triebitz sta_flags = iwl_mvm_has_new_tx_api(mvm) ? 0 : STA_MODIFY_QUEUES; 16768d98ae6eSLiad Kaufman goto update_fw; 16778d98ae6eSLiad Kaufman } 16788d98ae6eSLiad Kaufman 1679e705c121SKalle Valo mvm_sta->sta_id = sta_id; 1680e705c121SKalle Valo mvm_sta->mac_id_n_color = FW_CMD_ID_AND_COLOR(mvmvif->id, 1681e705c121SKalle Valo mvmvif->color); 1682e705c121SKalle Valo mvm_sta->vif = vif; 1683286ca8ebSLuca Coelho if (!mvm->trans->trans_cfg->gen2) 1684e705c121SKalle Valo mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_DEF; 1685a58bb468SLiad Kaufman else 1686a58bb468SLiad Kaufman mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF; 1687e705c121SKalle Valo mvm_sta->tx_protection = 0; 1688e705c121SKalle Valo mvm_sta->tt_tx_protection = false; 1689ced19f26SSara Sharon mvm_sta->sta_type = sta->tdls ? IWL_STA_TDLS_LINK : IWL_STA_LINK; 1690e705c121SKalle Valo 1691e705c121SKalle Valo /* HW restart, don't assume the memory has been zeroed */ 1692e705c121SKalle Valo mvm_sta->tid_disable_agg = 0xffff; /* No aggs at first */ 1693e705c121SKalle Valo mvm_sta->tfd_queue_msk = 0; 1694e705c121SKalle Valo 1695e705c121SKalle Valo /* for HW restart - reset everything but the sequence number */ 169624afba76SLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 1697e705c121SKalle Valo u16 seq = mvm_sta->tid_data[i].seq_number; 1698e705c121SKalle Valo memset(&mvm_sta->tid_data[i], 0, sizeof(mvm_sta->tid_data[i])); 1699e705c121SKalle Valo mvm_sta->tid_data[i].seq_number = seq; 170024afba76SLiad Kaufman 170124afba76SLiad Kaufman /* 170224afba76SLiad Kaufman * Mark all queues for this STA as unallocated and defer TX 170324afba76SLiad Kaufman * frames until the queue is allocated 170424afba76SLiad Kaufman */ 17056862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 1706e705c121SKalle Valo } 1707cfbc6c4cSSara Sharon 1708cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1709cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1710cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1711cfbc6c4cSSara Sharon 1712cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 1713cfbc6c4cSSara Sharon INIT_LIST_HEAD(&mvmtxq->list); 1714fba8248eSSara Sharon atomic_set(&mvmtxq->tx_request, 0); 1715cfbc6c4cSSara Sharon } 1716cfbc6c4cSSara Sharon 1717e705c121SKalle Valo mvm_sta->agg_tids = 0; 1718e705c121SKalle Valo 1719a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && 1720a571f5f6SSara Sharon !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 172192c4dca6SJohannes Berg int q; 172292c4dca6SJohannes Berg 1723a571f5f6SSara Sharon dup_data = kcalloc(mvm->trans->num_rx_queues, 172492c4dca6SJohannes Berg sizeof(*dup_data), GFP_KERNEL); 1725a571f5f6SSara Sharon if (!dup_data) 1726a571f5f6SSara Sharon return -ENOMEM; 172792c4dca6SJohannes Berg /* 172892c4dca6SJohannes Berg * Initialize all the last_seq values to 0xffff which can never 172992c4dca6SJohannes Berg * compare equal to the frame's seq_ctrl in the check in 173092c4dca6SJohannes Berg * iwl_mvm_is_dup() since the lower 4 bits are the fragment 173192c4dca6SJohannes Berg * number and fragmented packets don't reach that function. 173292c4dca6SJohannes Berg * 173392c4dca6SJohannes Berg * This thus allows receiving a packet with seqno 0 and the 173492c4dca6SJohannes Berg * retry bit set as the very first packet on a new TID. 173592c4dca6SJohannes Berg */ 173692c4dca6SJohannes Berg for (q = 0; q < mvm->trans->num_rx_queues; q++) 173792c4dca6SJohannes Berg memset(dup_data[q].last_seq, 0xff, 173892c4dca6SJohannes Berg sizeof(dup_data[q].last_seq)); 1739a571f5f6SSara Sharon mvm_sta->dup_data = dup_data; 1740a571f5f6SSara Sharon } 1741a571f5f6SSara Sharon 1742c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 1743d5216a28SLiad Kaufman ret = iwl_mvm_reserve_sta_stream(mvm, sta, 1744d5216a28SLiad Kaufman ieee80211_vif_type_p2p(vif)); 174524afba76SLiad Kaufman if (ret) 174624afba76SLiad Kaufman goto err; 174724afba76SLiad Kaufman } 174824afba76SLiad Kaufman 17499f66a397SGregory Greenman /* 17509f66a397SGregory Greenman * if rs is registered with mac80211, then "add station" will be handled 17519f66a397SGregory Greenman * via the corresponding ops, otherwise need to notify rate scaling here 17529f66a397SGregory Greenman */ 17534243edb4SEmmanuel Grumbach if (iwl_mvm_has_tlc_offload(mvm)) 17549f66a397SGregory Greenman iwl_mvm_rs_add_sta(mvm, mvm_sta); 17550f8084cdSMordechay Goodstein else 1756f5d88fa3SGregory Greenman spin_lock_init(&mvm_sta->lq_sta.rs_drv.pers.lock); 17579f66a397SGregory Greenman 17580dde2440SAvraham Stern iwl_mvm_toggle_tx_ant(mvm, &mvm_sta->tx_ant); 17590dde2440SAvraham Stern 17608d98ae6eSLiad Kaufman update_fw: 1761732d06e9SShaul Triebitz ret = iwl_mvm_sta_send_to_fw(mvm, sta, sta_update, sta_flags); 1762e705c121SKalle Valo if (ret) 1763e705c121SKalle Valo goto err; 1764e705c121SKalle Valo 1765e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) { 1766e705c121SKalle Valo if (!sta->tdls) { 17670ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id != IWL_MVM_INVALID_STA); 1768e705c121SKalle Valo mvmvif->ap_sta_id = sta_id; 1769e705c121SKalle Valo } else { 17700ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id == IWL_MVM_INVALID_STA); 1771e705c121SKalle Valo } 1772e705c121SKalle Valo } 1773e705c121SKalle Valo 1774*c7eca79dSAvraham Stern if (!sta->tdls) 1775*c7eca79dSAvraham Stern iwl_mvm_time_sync_config(mvm, sta->addr, 1776*c7eca79dSAvraham Stern IWL_TIME_SYNC_PROTOCOL_TM | 1777*c7eca79dSAvraham Stern IWL_TIME_SYNC_PROTOCOL_FTM); 1778*c7eca79dSAvraham Stern 1779e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], sta); 1780e705c121SKalle Valo 1781e705c121SKalle Valo return 0; 1782e705c121SKalle Valo 1783e705c121SKalle Valo err: 1784e705c121SKalle Valo return ret; 1785e705c121SKalle Valo } 1786e705c121SKalle Valo 1787e705c121SKalle Valo int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, 1788e705c121SKalle Valo bool drain) 1789e705c121SKalle Valo { 1790e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 1791e705c121SKalle Valo int ret; 1792e705c121SKalle Valo u32 status; 1793e705c121SKalle Valo 1794e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1795e705c121SKalle Valo 1796e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 1797e705c121SKalle Valo cmd.sta_id = mvmsta->sta_id; 1798e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 1799e705c121SKalle Valo cmd.station_flags = drain ? cpu_to_le32(STA_FLG_DRAIN_FLOW) : 0; 1800e705c121SKalle Valo cmd.station_flags_msk = cpu_to_le32(STA_FLG_DRAIN_FLOW); 1801e705c121SKalle Valo 1802e705c121SKalle Valo status = ADD_STA_SUCCESS; 1803854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1804854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 1805e705c121SKalle Valo &cmd, &status); 1806e705c121SKalle Valo if (ret) 1807e705c121SKalle Valo return ret; 1808e705c121SKalle Valo 1809837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 1810e705c121SKalle Valo case ADD_STA_SUCCESS: 1811e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "Frames for staid %d will drained in fw\n", 1812e705c121SKalle Valo mvmsta->sta_id); 1813e705c121SKalle Valo break; 1814e705c121SKalle Valo default: 1815e705c121SKalle Valo ret = -EIO; 1816e705c121SKalle Valo IWL_ERR(mvm, "Couldn't drain frames for staid %d\n", 1817e705c121SKalle Valo mvmsta->sta_id); 1818e705c121SKalle Valo break; 1819e705c121SKalle Valo } 1820e705c121SKalle Valo 1821e705c121SKalle Valo return ret; 1822e705c121SKalle Valo } 1823e705c121SKalle Valo 1824e705c121SKalle Valo /* 1825e705c121SKalle Valo * Remove a station from the FW table. Before sending the command to remove 1826e705c121SKalle Valo * the station validate that the station is indeed known to the driver (sanity 1827e705c121SKalle Valo * only). 1828e705c121SKalle Valo */ 1829e705c121SKalle Valo static int iwl_mvm_rm_sta_common(struct iwl_mvm *mvm, u8 sta_id) 1830e705c121SKalle Valo { 1831e705c121SKalle Valo struct ieee80211_sta *sta; 1832e705c121SKalle Valo struct iwl_mvm_rm_sta_cmd rm_sta_cmd = { 1833e705c121SKalle Valo .sta_id = sta_id, 1834e705c121SKalle Valo }; 1835e705c121SKalle Valo int ret; 1836e705c121SKalle Valo 1837e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 1838e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1839e705c121SKalle Valo 1840e705c121SKalle Valo /* Note: internal stations are marked as error values */ 1841e705c121SKalle Valo if (!sta) { 1842e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 1843e705c121SKalle Valo return -EINVAL; 1844e705c121SKalle Valo } 1845e705c121SKalle Valo 1846e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, REMOVE_STA, 0, 1847e705c121SKalle Valo sizeof(rm_sta_cmd), &rm_sta_cmd); 1848e705c121SKalle Valo if (ret) { 1849e705c121SKalle Valo IWL_ERR(mvm, "Failed to remove station. Id=%d\n", sta_id); 1850e705c121SKalle Valo return ret; 1851e705c121SKalle Valo } 1852e705c121SKalle Valo 1853e705c121SKalle Valo return 0; 1854e705c121SKalle Valo } 1855e705c121SKalle Valo 185624afba76SLiad Kaufman static void iwl_mvm_disable_sta_queues(struct iwl_mvm *mvm, 185724afba76SLiad Kaufman struct ieee80211_vif *vif, 1858cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 185924afba76SLiad Kaufman { 1860cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 186124afba76SLiad Kaufman int i; 186224afba76SLiad Kaufman 186324afba76SLiad Kaufman lockdep_assert_held(&mvm->mutex); 186424afba76SLiad Kaufman 186524afba76SLiad Kaufman for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 18666862fceeSSara Sharon if (mvm_sta->tid_data[i].txq_id == IWL_MVM_INVALID_QUEUE) 186724afba76SLiad Kaufman continue; 186824afba76SLiad Kaufman 1869c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, sta, mvm_sta->sta_id, 1870c5a976cfSJohannes Berg &mvm_sta->tid_data[i].txq_id, i); 18716862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 187224afba76SLiad Kaufman } 1873cfbc6c4cSSara Sharon 1874cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1875cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1876cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1877cfbc6c4cSSara Sharon 1878cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 187914a3aacfSJose Ignacio Tornos Martinez list_del_init(&mvmtxq->list); 1880cfbc6c4cSSara Sharon } 188124afba76SLiad Kaufman } 188224afba76SLiad Kaufman 1883d6d517b7SSara Sharon int iwl_mvm_wait_sta_queues_empty(struct iwl_mvm *mvm, 1884d6d517b7SSara Sharon struct iwl_mvm_sta *mvm_sta) 1885d6d517b7SSara Sharon { 1886bec9522aSSharon Dvir int i; 1887d6d517b7SSara Sharon 1888d6d517b7SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 1889d6d517b7SSara Sharon u16 txq_id; 1890bec9522aSSharon Dvir int ret; 1891d6d517b7SSara Sharon 1892d6d517b7SSara Sharon spin_lock_bh(&mvm_sta->lock); 1893d6d517b7SSara Sharon txq_id = mvm_sta->tid_data[i].txq_id; 1894d6d517b7SSara Sharon spin_unlock_bh(&mvm_sta->lock); 1895d6d517b7SSara Sharon 1896d6d517b7SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 1897d6d517b7SSara Sharon continue; 1898d6d517b7SSara Sharon 1899d6d517b7SSara Sharon ret = iwl_trans_wait_txq_empty(mvm->trans, txq_id); 1900d6d517b7SSara Sharon if (ret) 1901bec9522aSSharon Dvir return ret; 1902d6d517b7SSara Sharon } 1903d6d517b7SSara Sharon 1904bec9522aSSharon Dvir return 0; 1905d6d517b7SSara Sharon } 1906d6d517b7SSara Sharon 1907e705c121SKalle Valo int iwl_mvm_rm_sta(struct iwl_mvm *mvm, 1908e705c121SKalle Valo struct ieee80211_vif *vif, 1909e705c121SKalle Valo struct ieee80211_sta *sta) 1910e705c121SKalle Valo { 1911e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1912e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 191394c3e614SSara Sharon u8 sta_id = mvm_sta->sta_id; 1914e705c121SKalle Valo int ret; 1915e705c121SKalle Valo 1916e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1917e705c121SKalle Valo 1918a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm)) 1919a571f5f6SSara Sharon kfree(mvm_sta->dup_data); 1920a571f5f6SSara Sharon 1921e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, true); 1922e705c121SKalle Valo if (ret) 1923e705c121SKalle Valo return ret; 1924c8f54701SJohannes Berg 1925e705c121SKalle Valo /* flush its queues here since we are freeing mvm_sta */ 1926f9084775SNathan Errera ret = iwl_mvm_flush_sta(mvm, mvm_sta, false); 1927e705c121SKalle Valo if (ret) 1928e705c121SKalle Valo return ret; 1929d6d517b7SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1930d6d517b7SSara Sharon ret = iwl_mvm_wait_sta_queues_empty(mvm, mvm_sta); 1931d6d517b7SSara Sharon } else { 1932d6d517b7SSara Sharon u32 q_mask = mvm_sta->tfd_queue_msk; 1933d6d517b7SSara Sharon 1934a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 1935d6d517b7SSara Sharon q_mask); 1936d6d517b7SSara Sharon } 1937e705c121SKalle Valo if (ret) 1938e705c121SKalle Valo return ret; 1939c8f54701SJohannes Berg 1940e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, false); 1941e705c121SKalle Valo 1942cfbc6c4cSSara Sharon iwl_mvm_disable_sta_queues(mvm, vif, sta); 194356214749SLiad Kaufman 194456214749SLiad Kaufman /* If there is a TXQ still marked as reserved - free it */ 1945c8f54701SJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) { 1946a0315deaSLiad Kaufman u8 reserved_txq = mvm_sta->reserved_queue; 1947a0315deaSLiad Kaufman enum iwl_mvm_queue_status *status; 1948a0315deaSLiad Kaufman 1949a0315deaSLiad Kaufman /* 1950a0315deaSLiad Kaufman * If no traffic has gone through the reserved TXQ - it 1951a0315deaSLiad Kaufman * is still marked as IWL_MVM_QUEUE_RESERVED, and 1952a0315deaSLiad Kaufman * should be manually marked as free again 1953a0315deaSLiad Kaufman */ 1954a0315deaSLiad Kaufman status = &mvm->queue_info[reserved_txq].status; 1955a0315deaSLiad Kaufman if (WARN((*status != IWL_MVM_QUEUE_RESERVED) && 1956a0315deaSLiad Kaufman (*status != IWL_MVM_QUEUE_FREE), 1957a0315deaSLiad Kaufman "sta_id %d reserved txq %d status %d", 1958f3f240f9SJohannes Berg sta_id, reserved_txq, *status)) 1959a0315deaSLiad Kaufman return -EINVAL; 1960a0315deaSLiad Kaufman 1961a0315deaSLiad Kaufman *status = IWL_MVM_QUEUE_FREE; 1962a0315deaSLiad Kaufman } 1963a0315deaSLiad Kaufman 1964e3118ad7SLiad Kaufman if (vif->type == NL80211_IFTYPE_STATION && 196594c3e614SSara Sharon mvmvif->ap_sta_id == sta_id) { 1966e3118ad7SLiad Kaufman /* if associated - we can't remove the AP STA now */ 1967f276e20bSJohannes Berg if (vif->cfg.assoc) 1968e705c121SKalle Valo return ret; 1969e705c121SKalle Valo 19705c75a208SJohannes Berg /* first remove remaining keys */ 19715c75a208SJohannes Berg iwl_mvm_sec_key_remove_ap(mvm, vif); 19725c75a208SJohannes Berg 1973e705c121SKalle Valo /* unassoc - go ahead - remove the AP STA now */ 19740ae98812SSara Sharon mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1975e705c121SKalle Valo } 1976e705c121SKalle Valo 1977e705c121SKalle Valo /* 1978e705c121SKalle Valo * This shouldn't happen - the TDLS channel switch should be canceled 1979e705c121SKalle Valo * before the STA is removed. 1980e705c121SKalle Valo */ 198194c3e614SSara Sharon if (WARN_ON_ONCE(mvm->tdls_cs.peer.sta_id == sta_id)) { 19820ae98812SSara Sharon mvm->tdls_cs.peer.sta_id = IWL_MVM_INVALID_STA; 1983e705c121SKalle Valo cancel_delayed_work(&mvm->tdls_cs.dwork); 1984e705c121SKalle Valo } 1985e705c121SKalle Valo 1986e705c121SKalle Valo /* 1987e705c121SKalle Valo * Make sure that the tx response code sees the station as -EBUSY and 1988e705c121SKalle Valo * calls the drain worker. 1989e705c121SKalle Valo */ 1990e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 1991e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 1992e705c121SKalle Valo 1993*c7eca79dSAvraham Stern iwl_mvm_time_sync_sta_rm(mvm, sta); 1994*c7eca79dSAvraham Stern 1995e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvm_sta->sta_id); 1996e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[mvm_sta->sta_id], NULL); 1997e705c121SKalle Valo 1998e705c121SKalle Valo return ret; 1999e705c121SKalle Valo } 2000e705c121SKalle Valo 2001e705c121SKalle Valo int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm, 2002e705c121SKalle Valo struct ieee80211_vif *vif, 2003e705c121SKalle Valo u8 sta_id) 2004e705c121SKalle Valo { 2005e705c121SKalle Valo int ret = iwl_mvm_rm_sta_common(mvm, sta_id); 2006e705c121SKalle Valo 2007e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2008e705c121SKalle Valo 2009e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], NULL); 2010e705c121SKalle Valo return ret; 2011e705c121SKalle Valo } 2012e705c121SKalle Valo 20130e39eb03SChaya Rachel Ivgi int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, 2014e705c121SKalle Valo struct iwl_mvm_int_sta *sta, 2015ced19f26SSara Sharon u32 qmask, enum nl80211_iftype iftype, 2016006c152aSMiri Korenblit u8 type) 2017e705c121SKalle Valo { 2018df65c8d1SAvraham Stern if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 2019df65c8d1SAvraham Stern sta->sta_id == IWL_MVM_INVALID_STA) { 2020e705c121SKalle Valo sta->sta_id = iwl_mvm_find_free_sta_id(mvm, iftype); 20210ae98812SSara Sharon if (WARN_ON_ONCE(sta->sta_id == IWL_MVM_INVALID_STA)) 2022e705c121SKalle Valo return -ENOSPC; 2023e705c121SKalle Valo } 2024e705c121SKalle Valo 2025e705c121SKalle Valo sta->tfd_queue_msk = qmask; 2026ced19f26SSara Sharon sta->type = type; 2027e705c121SKalle Valo 2028e705c121SKalle Valo /* put a non-NULL value so iterating over the stations won't stop */ 2029e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta->sta_id], ERR_PTR(-EINVAL)); 2030e705c121SKalle Valo return 0; 2031e705c121SKalle Valo } 2032e705c121SKalle Valo 203326d6c16bSSara Sharon void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta) 2034e705c121SKalle Valo { 2035e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta->sta_id], NULL); 2036e705c121SKalle Valo memset(sta, 0, sizeof(struct iwl_mvm_int_sta)); 20370ae98812SSara Sharon sta->sta_id = IWL_MVM_INVALID_STA; 2038e705c121SKalle Valo } 2039e705c121SKalle Valo 204091cf5dedSJohannes Berg static void iwl_mvm_enable_aux_snif_queue(struct iwl_mvm *mvm, u16 queue, 2041b13f43a4SEmmanuel Grumbach u8 sta_id, u8 fifo) 2042e705c121SKalle Valo { 20439617040eSEmmanuel Grumbach unsigned int wdg_timeout = 20449617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout; 204528d0793eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 2046b13f43a4SEmmanuel Grumbach .fifo = fifo, 2047b13f43a4SEmmanuel Grumbach .sta_id = sta_id, 204828d0793eSLiad Kaufman .tid = IWL_MAX_TID_COUNT, 204928d0793eSLiad Kaufman .aggregate = false, 205028d0793eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 205128d0793eSLiad Kaufman }; 205228d0793eSLiad Kaufman 205391cf5dedSJohannes Berg WARN_ON(iwl_mvm_has_new_tx_api(mvm)); 205491cf5dedSJohannes Berg 205591cf5dedSJohannes Berg iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 205628d0793eSLiad Kaufman } 205791cf5dedSJohannes Berg 205891cf5dedSJohannes Berg static int iwl_mvm_enable_aux_snif_queue_tvqm(struct iwl_mvm *mvm, u8 sta_id) 205991cf5dedSJohannes Berg { 20609617040eSEmmanuel Grumbach unsigned int wdg_timeout = 20619617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout; 206291cf5dedSJohannes Berg 206391cf5dedSJohannes Berg WARN_ON(!iwl_mvm_has_new_tx_api(mvm)); 206491cf5dedSJohannes Berg 206509369983SJohannes Berg return iwl_mvm_tvqm_enable_txq(mvm, NULL, sta_id, IWL_MAX_TID_COUNT, 206691cf5dedSJohannes Berg wdg_timeout); 206791cf5dedSJohannes Berg } 206891cf5dedSJohannes Berg 206991cf5dedSJohannes Berg static int iwl_mvm_add_int_sta_with_queue(struct iwl_mvm *mvm, int macidx, 2070be82ecd3SAvraham Stern int maccolor, u8 *addr, 207191cf5dedSJohannes Berg struct iwl_mvm_int_sta *sta, 207291cf5dedSJohannes Berg u16 *queue, int fifo) 207391cf5dedSJohannes Berg { 207491cf5dedSJohannes Berg int ret; 207591cf5dedSJohannes Berg 207691cf5dedSJohannes Berg /* Map queue to fifo - needs to happen before adding station */ 207791cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) 207891cf5dedSJohannes Berg iwl_mvm_enable_aux_snif_queue(mvm, *queue, sta->sta_id, fifo); 207991cf5dedSJohannes Berg 2080be82ecd3SAvraham Stern ret = iwl_mvm_add_int_sta_common(mvm, sta, addr, macidx, maccolor); 208191cf5dedSJohannes Berg if (ret) { 208291cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) 2083c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, sta->sta_id, queue, 208464ff7eb0SJohannes Berg IWL_MAX_TID_COUNT); 208591cf5dedSJohannes Berg return ret; 208691cf5dedSJohannes Berg } 208791cf5dedSJohannes Berg 208891cf5dedSJohannes Berg /* 208991cf5dedSJohannes Berg * For 22000 firmware and on we cannot add queue to a station unknown 209091cf5dedSJohannes Berg * to firmware so enable queue here - after the station was added 209191cf5dedSJohannes Berg */ 209291cf5dedSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) { 209391cf5dedSJohannes Berg int txq; 209491cf5dedSJohannes Berg 209591cf5dedSJohannes Berg txq = iwl_mvm_enable_aux_snif_queue_tvqm(mvm, sta->sta_id); 209691cf5dedSJohannes Berg if (txq < 0) { 209791cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, sta->sta_id); 209891cf5dedSJohannes Berg return txq; 209991cf5dedSJohannes Berg } 210091cf5dedSJohannes Berg 210191cf5dedSJohannes Berg *queue = txq; 210291cf5dedSJohannes Berg } 210391cf5dedSJohannes Berg 210491cf5dedSJohannes Berg return 0; 2105c5a719eeSSara Sharon } 2106c5a719eeSSara Sharon 21072c2c3647SNathan Errera int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm, u32 lmac_id) 2108c5a719eeSSara Sharon { 2109c5a719eeSSara Sharon int ret; 2110c5a719eeSSara Sharon 2111c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2112c5a719eeSSara Sharon 2113c5a719eeSSara Sharon /* Allocate aux station and assign to it the aux queue */ 2114c5a719eeSSara Sharon ret = iwl_mvm_allocate_int_sta(mvm, &mvm->aux_sta, BIT(mvm->aux_queue), 2115ced19f26SSara Sharon NL80211_IFTYPE_UNSPECIFIED, 2116ced19f26SSara Sharon IWL_STA_AUX_ACTIVITY); 2117c5a719eeSSara Sharon if (ret) 2118c5a719eeSSara Sharon return ret; 2119c5a719eeSSara Sharon 21202c2c3647SNathan Errera /* 21212c2c3647SNathan Errera * In CDB NICs we need to specify which lmac to use for aux activity 21222c2c3647SNathan Errera * using the mac_id argument place to send lmac_id to the function 21232c2c3647SNathan Errera */ 21242c2c3647SNathan Errera ret = iwl_mvm_add_int_sta_with_queue(mvm, lmac_id, 0, NULL, 212591cf5dedSJohannes Berg &mvm->aux_sta, &mvm->aux_queue, 2126b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_MCAST); 2127c5a719eeSSara Sharon if (ret) { 2128e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2129e705c121SKalle Valo return ret; 2130e705c121SKalle Valo } 2131e705c121SKalle Valo 2132c5a719eeSSara Sharon return 0; 2133c5a719eeSSara Sharon } 2134c5a719eeSSara Sharon 21350e39eb03SChaya Rachel Ivgi int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 21360e39eb03SChaya Rachel Ivgi { 21370e39eb03SChaya Rachel Ivgi struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 21380e39eb03SChaya Rachel Ivgi 21390e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 2140b13f43a4SEmmanuel Grumbach 214191cf5dedSJohannes Berg return iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id, mvmvif->color, 2142be82ecd3SAvraham Stern NULL, &mvm->snif_sta, 2143be82ecd3SAvraham Stern &mvm->snif_queue, 2144b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_BE); 21450e39eb03SChaya Rachel Ivgi } 21460e39eb03SChaya Rachel Ivgi 21470e39eb03SChaya Rachel Ivgi int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 21480e39eb03SChaya Rachel Ivgi { 21490e39eb03SChaya Rachel Ivgi int ret; 21500e39eb03SChaya Rachel Ivgi 21510e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 21520e39eb03SChaya Rachel Ivgi 2153e223e42aSGregory Greenman if (WARN_ON_ONCE(mvm->snif_sta.sta_id == IWL_MVM_INVALID_STA)) 2154e223e42aSGregory Greenman return -EINVAL; 2155e223e42aSGregory Greenman 2156c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, mvm->snif_sta.sta_id, 2157c5a976cfSJohannes Berg &mvm->snif_queue, IWL_MAX_TID_COUNT); 21580e39eb03SChaya Rachel Ivgi ret = iwl_mvm_rm_sta_common(mvm, mvm->snif_sta.sta_id); 21590e39eb03SChaya Rachel Ivgi if (ret) 21600e39eb03SChaya Rachel Ivgi IWL_WARN(mvm, "Failed sending remove station\n"); 21610e39eb03SChaya Rachel Ivgi 21620e39eb03SChaya Rachel Ivgi return ret; 21630e39eb03SChaya Rachel Ivgi } 21640e39eb03SChaya Rachel Ivgi 2165f327236dSSharon int iwl_mvm_rm_aux_sta(struct iwl_mvm *mvm) 2166f327236dSSharon { 2167f327236dSSharon int ret; 2168f327236dSSharon 2169f327236dSSharon lockdep_assert_held(&mvm->mutex); 2170f327236dSSharon 2171e223e42aSGregory Greenman if (WARN_ON_ONCE(mvm->aux_sta.sta_id == IWL_MVM_INVALID_STA)) 2172e223e42aSGregory Greenman return -EINVAL; 2173e223e42aSGregory Greenman 2174c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, mvm->aux_sta.sta_id, 2175c5a976cfSJohannes Berg &mvm->aux_queue, IWL_MAX_TID_COUNT); 2176f327236dSSharon ret = iwl_mvm_rm_sta_common(mvm, mvm->aux_sta.sta_id); 2177f327236dSSharon if (ret) 2178f327236dSSharon IWL_WARN(mvm, "Failed sending remove station\n"); 2179f327236dSSharon iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2180f327236dSSharon 2181f327236dSSharon return ret; 2182f327236dSSharon } 2183f327236dSSharon 21840e39eb03SChaya Rachel Ivgi void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm) 21850e39eb03SChaya Rachel Ivgi { 21860e39eb03SChaya Rachel Ivgi iwl_mvm_dealloc_int_sta(mvm, &mvm->snif_sta); 21870e39eb03SChaya Rachel Ivgi } 21880e39eb03SChaya Rachel Ivgi 2189e705c121SKalle Valo /* 2190e705c121SKalle Valo * Send the add station command for the vif's broadcast station. 2191e705c121SKalle Valo * Assumes that the station was already allocated. 2192e705c121SKalle Valo * 2193e705c121SKalle Valo * @mvm: the mvm component 2194e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2195e705c121SKalle Valo * @bsta: the broadcast station to add. 2196e705c121SKalle Valo */ 2197e705c121SKalle Valo int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2198e705c121SKalle Valo { 2199e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2200e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 2201e705c121SKalle Valo static const u8 _baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; 2202e705c121SKalle Valo const u8 *baddr = _baddr; 22037daa7624SJohannes Berg int queue; 2204df88c08dSLiad Kaufman int ret; 2205c5a719eeSSara Sharon unsigned int wdg_timeout = 2206c5a719eeSSara Sharon iwl_mvm_get_wd_timeout(mvm, vif, false, false); 2207de24f638SLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 2208de24f638SLiad Kaufman .fifo = IWL_MVM_TX_FIFO_VO, 2209de24f638SLiad Kaufman .sta_id = mvmvif->bcast_sta.sta_id, 2210de24f638SLiad Kaufman .tid = IWL_MAX_TID_COUNT, 2211de24f638SLiad Kaufman .aggregate = false, 2212de24f638SLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 2213de24f638SLiad Kaufman }; 2214de24f638SLiad Kaufman 2215c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2216c5a719eeSSara Sharon 2217c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 22184d339989SLiad Kaufman if (vif->type == NL80211_IFTYPE_AP || 2219f8510d67SNathan Chancellor vif->type == NL80211_IFTYPE_ADHOC) { 222049f71713SSara Sharon queue = mvm->probe_queue; 2221f8510d67SNathan Chancellor } else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 222249f71713SSara Sharon queue = mvm->p2p_dev_queue; 2223f8510d67SNathan Chancellor } else { 2224f8510d67SNathan Chancellor WARN(1, "Missing required TXQ for adding bcast STA\n"); 2225de24f638SLiad Kaufman return -EINVAL; 2226f8510d67SNathan Chancellor } 2227de24f638SLiad Kaufman 2228df88c08dSLiad Kaufman bsta->tfd_queue_msk |= BIT(queue); 2229c5a719eeSSara Sharon 2230cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 2231de24f638SLiad Kaufman } 2232de24f638SLiad Kaufman 2233e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_ADHOC) 2234e705c121SKalle Valo baddr = vif->bss_conf.bssid; 2235e705c121SKalle Valo 22360ae98812SSara Sharon if (WARN_ON_ONCE(bsta->sta_id == IWL_MVM_INVALID_STA)) 2237e705c121SKalle Valo return -ENOSPC; 2238e705c121SKalle Valo 2239df88c08dSLiad Kaufman ret = iwl_mvm_add_int_sta_common(mvm, bsta, baddr, 2240e705c121SKalle Valo mvmvif->id, mvmvif->color); 2241df88c08dSLiad Kaufman if (ret) 2242df88c08dSLiad Kaufman return ret; 2243df88c08dSLiad Kaufman 2244df88c08dSLiad Kaufman /* 22452f7a3863SLuca Coelho * For 22000 firmware and on we cannot add queue to a station unknown 2246c5a719eeSSara Sharon * to firmware so enable queue here - after the station was added 2247df88c08dSLiad Kaufman */ 2248310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 224909369983SJohannes Berg queue = iwl_mvm_tvqm_enable_txq(mvm, NULL, bsta->sta_id, 2250310181ecSSara Sharon IWL_MAX_TID_COUNT, 2251c5a719eeSSara Sharon wdg_timeout); 225291cf5dedSJohannes Berg if (queue < 0) { 225391cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, bsta->sta_id); 225491cf5dedSJohannes Berg return queue; 225591cf5dedSJohannes Berg } 22567daa7624SJohannes Berg 22577b758a11SLuca Coelho if (vif->type == NL80211_IFTYPE_AP || 22587b758a11SLuca Coelho vif->type == NL80211_IFTYPE_ADHOC) 2259310181ecSSara Sharon mvm->probe_queue = queue; 2260310181ecSSara Sharon else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 2261310181ecSSara Sharon mvm->p2p_dev_queue = queue; 2262310181ecSSara Sharon } 2263df88c08dSLiad Kaufman 2264df88c08dSLiad Kaufman return 0; 2265df88c08dSLiad Kaufman } 2266df88c08dSLiad Kaufman 226760efeca1SMiri Korenblit void iwl_mvm_free_bcast_sta_queues(struct iwl_mvm *mvm, 2268df88c08dSLiad Kaufman struct ieee80211_vif *vif) 2269df88c08dSLiad Kaufman { 2270df88c08dSLiad Kaufman struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2271c6ce1c74SJohannes Berg u16 *queueptr, queue; 2272df88c08dSLiad Kaufman 2273df88c08dSLiad Kaufman lockdep_assert_held(&mvm->mutex); 2274df88c08dSLiad Kaufman 2275f9084775SNathan Errera iwl_mvm_flush_sta(mvm, &mvmvif->bcast_sta, true); 2276d49394a1SSara Sharon 2277d167e81aSMordechai Goodstein switch (vif->type) { 2278d167e81aSMordechai Goodstein case NL80211_IFTYPE_AP: 2279d167e81aSMordechai Goodstein case NL80211_IFTYPE_ADHOC: 2280c6ce1c74SJohannes Berg queueptr = &mvm->probe_queue; 2281d167e81aSMordechai Goodstein break; 2282d167e81aSMordechai Goodstein case NL80211_IFTYPE_P2P_DEVICE: 2283c6ce1c74SJohannes Berg queueptr = &mvm->p2p_dev_queue; 2284d167e81aSMordechai Goodstein break; 2285d167e81aSMordechai Goodstein default: 2286d167e81aSMordechai Goodstein WARN(1, "Can't free bcast queue on vif type %d\n", 2287d167e81aSMordechai Goodstein vif->type); 2288d167e81aSMordechai Goodstein return; 2289df88c08dSLiad Kaufman } 2290df88c08dSLiad Kaufman 2291c6ce1c74SJohannes Berg queue = *queueptr; 2292c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, mvmvif->bcast_sta.sta_id, 2293c5a976cfSJohannes Berg queueptr, IWL_MAX_TID_COUNT); 2294d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) 2295d167e81aSMordechai Goodstein return; 2296d167e81aSMordechai Goodstein 2297d167e81aSMordechai Goodstein WARN_ON(!(mvmvif->bcast_sta.tfd_queue_msk & BIT(queue))); 2298d167e81aSMordechai Goodstein mvmvif->bcast_sta.tfd_queue_msk &= ~BIT(queue); 2299e705c121SKalle Valo } 2300e705c121SKalle Valo 2301e705c121SKalle Valo /* Send the FW a request to remove the station from it's internal data 2302e705c121SKalle Valo * structures, but DO NOT remove the entry from the local data structures. */ 2303e705c121SKalle Valo int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2304e705c121SKalle Valo { 2305e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2306e705c121SKalle Valo int ret; 2307e705c121SKalle Valo 2308e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2309e705c121SKalle Valo 2310df88c08dSLiad Kaufman iwl_mvm_free_bcast_sta_queues(mvm, vif); 2311df88c08dSLiad Kaufman 2312e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvmvif->bcast_sta.sta_id); 2313e705c121SKalle Valo if (ret) 2314e705c121SKalle Valo IWL_WARN(mvm, "Failed sending remove station\n"); 2315e705c121SKalle Valo return ret; 2316e705c121SKalle Valo } 2317e705c121SKalle Valo 2318e705c121SKalle Valo int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2319e705c121SKalle Valo { 2320e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2321e705c121SKalle Valo 2322e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2323e705c121SKalle Valo 2324c8f54701SJohannes Berg return iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, 0, 2325ced19f26SSara Sharon ieee80211_vif_type_p2p(vif), 2326ced19f26SSara Sharon IWL_STA_GENERAL_PURPOSE); 2327e705c121SKalle Valo } 2328e705c121SKalle Valo 2329e705c121SKalle Valo /* Allocate a new station entry for the broadcast station to the given vif, 2330e705c121SKalle Valo * and send it to the FW. 2331e705c121SKalle Valo * Note that each P2P mac should have its own broadcast station. 2332e705c121SKalle Valo * 2333e705c121SKalle Valo * @mvm: the mvm component 2334e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2335e705c121SKalle Valo * @bsta: the broadcast station to add. */ 2336d197358bSLuca Coelho int iwl_mvm_add_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2337e705c121SKalle Valo { 2338e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2339e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 2340e705c121SKalle Valo int ret; 2341e705c121SKalle Valo 2342e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2343e705c121SKalle Valo 2344e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 2345e705c121SKalle Valo if (ret) 2346e705c121SKalle Valo return ret; 2347e705c121SKalle Valo 2348e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2349e705c121SKalle Valo 2350e705c121SKalle Valo if (ret) 2351e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, bsta); 2352e705c121SKalle Valo 2353e705c121SKalle Valo return ret; 2354e705c121SKalle Valo } 2355e705c121SKalle Valo 2356e705c121SKalle Valo void iwl_mvm_dealloc_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 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta); 2361e705c121SKalle Valo } 2362e705c121SKalle Valo 2363e705c121SKalle Valo /* 2364e705c121SKalle Valo * Send the FW a request to remove the station from it's internal data 2365e705c121SKalle Valo * structures, and in addition remove it from the local data structure. 2366e705c121SKalle Valo */ 2367d197358bSLuca Coelho int iwl_mvm_rm_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2368e705c121SKalle Valo { 2369e705c121SKalle Valo int ret; 2370e705c121SKalle Valo 2371e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2372e705c121SKalle Valo 2373e705c121SKalle Valo ret = iwl_mvm_send_rm_bcast_sta(mvm, vif); 2374e705c121SKalle Valo 2375e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif); 2376e705c121SKalle Valo 2377e705c121SKalle Valo return ret; 2378e705c121SKalle Valo } 2379e705c121SKalle Valo 238026d6c16bSSara Sharon /* 238126d6c16bSSara Sharon * Allocate a new station entry for the multicast station to the given vif, 238226d6c16bSSara Sharon * and send it to the FW. 238326d6c16bSSara Sharon * Note that each AP/GO mac should have its own multicast station. 238426d6c16bSSara Sharon * 238526d6c16bSSara Sharon * @mvm: the mvm component 238626d6c16bSSara Sharon * @vif: the interface to which the multicast station is added 238726d6c16bSSara Sharon */ 238826d6c16bSSara Sharon int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 238926d6c16bSSara Sharon { 239026d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 239126d6c16bSSara Sharon struct iwl_mvm_int_sta *msta = &mvmvif->mcast_sta; 239226d6c16bSSara Sharon static const u8 _maddr[] = {0x03, 0x00, 0x00, 0x00, 0x00, 0x00}; 239326d6c16bSSara Sharon const u8 *maddr = _maddr; 239426d6c16bSSara Sharon struct iwl_trans_txq_scd_cfg cfg = { 2395192a7e1fSJohannes Berg .fifo = vif->type == NL80211_IFTYPE_AP ? 2396192a7e1fSJohannes Berg IWL_MVM_TX_FIFO_MCAST : IWL_MVM_TX_FIFO_BE, 239726d6c16bSSara Sharon .sta_id = msta->sta_id, 23986508de03SIlan Peer .tid = 0, 239926d6c16bSSara Sharon .aggregate = false, 240026d6c16bSSara Sharon .frame_limit = IWL_FRAME_LIMIT, 240126d6c16bSSara Sharon }; 240226d6c16bSSara Sharon unsigned int timeout = iwl_mvm_get_wd_timeout(mvm, vif, false, false); 240326d6c16bSSara Sharon int ret; 240426d6c16bSSara Sharon 240526d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 240626d6c16bSSara Sharon 2407ee48b722SLiad Kaufman if (WARN_ON(vif->type != NL80211_IFTYPE_AP && 2408ee48b722SLiad Kaufman vif->type != NL80211_IFTYPE_ADHOC)) 240926d6c16bSSara Sharon return -ENOTSUPP; 241026d6c16bSSara Sharon 2411ced19f26SSara Sharon /* 2412fc07bd8cSSara Sharon * In IBSS, ieee80211_check_queues() sets the cab_queue to be 2413fc07bd8cSSara Sharon * invalid, so make sure we use the queue we want. 2414fc07bd8cSSara Sharon * Note that this is done here as we want to avoid making DQA 2415fc07bd8cSSara Sharon * changes in mac80211 layer. 2416fc07bd8cSSara Sharon */ 2417cfbc6c4cSSara Sharon if (vif->type == NL80211_IFTYPE_ADHOC) 2418cfbc6c4cSSara Sharon mvmvif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE; 2419fc07bd8cSSara Sharon 2420fc07bd8cSSara Sharon /* 2421ced19f26SSara Sharon * While in previous FWs we had to exclude cab queue from TFD queue 2422ced19f26SSara Sharon * mask, now it is needed as any other queue. 2423ced19f26SSara Sharon */ 2424ced19f26SSara Sharon if (!iwl_mvm_has_new_tx_api(mvm) && 2425ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2426cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, 2427cfbc6c4cSSara Sharon timeout); 2428cfbc6c4cSSara Sharon msta->tfd_queue_msk |= BIT(mvmvif->cab_queue); 2429ced19f26SSara Sharon } 243026d6c16bSSara Sharon ret = iwl_mvm_add_int_sta_common(mvm, msta, maddr, 243126d6c16bSSara Sharon mvmvif->id, mvmvif->color); 243291cf5dedSJohannes Berg if (ret) 243391cf5dedSJohannes Berg goto err; 243426d6c16bSSara Sharon 243526d6c16bSSara Sharon /* 243626d6c16bSSara Sharon * Enable cab queue after the ADD_STA command is sent. 24372f7a3863SLuca Coelho * This is needed for 22000 firmware which won't accept SCD_QUEUE_CFG 2438ced19f26SSara Sharon * command with unknown station id, and for FW that doesn't support 2439ced19f26SSara Sharon * station API since the cab queue is not included in the 2440ced19f26SSara Sharon * tfd_queue_mask. 244126d6c16bSSara Sharon */ 2442310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 244309369983SJohannes Berg int queue = iwl_mvm_tvqm_enable_txq(mvm, NULL, msta->sta_id, 244409369983SJohannes Berg 0, timeout); 244591cf5dedSJohannes Berg if (queue < 0) { 244691cf5dedSJohannes Berg ret = queue; 244791cf5dedSJohannes Berg goto err; 244891cf5dedSJohannes Berg } 2449e2af3fabSSara Sharon mvmvif->cab_queue = queue; 2450ced19f26SSara Sharon } else if (!fw_has_api(&mvm->fw->ucode_capa, 2451fc07bd8cSSara Sharon IWL_UCODE_TLV_API_STA_TYPE)) 2452cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, 2453cfbc6c4cSSara Sharon timeout); 245426d6c16bSSara Sharon 245526d6c16bSSara Sharon return 0; 245691cf5dedSJohannes Berg err: 245791cf5dedSJohannes Berg iwl_mvm_dealloc_int_sta(mvm, msta); 245891cf5dedSJohannes Berg return ret; 245926d6c16bSSara Sharon } 246026d6c16bSSara Sharon 246128916a16SEmmanuel Grumbach static int __iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, u8 sta_id, 246228916a16SEmmanuel Grumbach struct ieee80211_key_conf *keyconf, 246328916a16SEmmanuel Grumbach bool mcast) 246428916a16SEmmanuel Grumbach { 246528916a16SEmmanuel Grumbach union { 246628916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 246728916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd cmd; 246828916a16SEmmanuel Grumbach } u = {}; 246928916a16SEmmanuel Grumbach bool new_api = fw_has_api(&mvm->fw->ucode_capa, 247028916a16SEmmanuel Grumbach IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 247128916a16SEmmanuel Grumbach __le16 key_flags; 247228916a16SEmmanuel Grumbach int ret, size; 247328916a16SEmmanuel Grumbach u32 status; 247428916a16SEmmanuel Grumbach 247528916a16SEmmanuel Grumbach /* This is a valid situation for GTK removal */ 247628916a16SEmmanuel Grumbach if (sta_id == IWL_MVM_INVALID_STA) 247728916a16SEmmanuel Grumbach return 0; 247828916a16SEmmanuel Grumbach 247928916a16SEmmanuel Grumbach key_flags = cpu_to_le16((keyconf->keyidx << STA_KEY_FLG_KEYID_POS) & 248028916a16SEmmanuel Grumbach STA_KEY_FLG_KEYID_MSK); 248128916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_FLG_NO_ENC | STA_KEY_FLG_WEP_KEY_MAP); 248228916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_NOT_VALID); 248328916a16SEmmanuel Grumbach 248428916a16SEmmanuel Grumbach if (mcast) 248528916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 248628916a16SEmmanuel Grumbach 248728916a16SEmmanuel Grumbach /* 248828916a16SEmmanuel Grumbach * The fields assigned here are in the same location at the start 248928916a16SEmmanuel Grumbach * of the command, so we can do this union trick. 249028916a16SEmmanuel Grumbach */ 249128916a16SEmmanuel Grumbach u.cmd.common.key_flags = key_flags; 249228916a16SEmmanuel Grumbach u.cmd.common.key_offset = keyconf->hw_key_idx; 249328916a16SEmmanuel Grumbach u.cmd.common.sta_id = sta_id; 249428916a16SEmmanuel Grumbach 249528916a16SEmmanuel Grumbach size = new_api ? sizeof(u.cmd) : sizeof(u.cmd_v1); 249628916a16SEmmanuel Grumbach 249728916a16SEmmanuel Grumbach status = ADD_STA_SUCCESS; 249828916a16SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, &u.cmd, 249928916a16SEmmanuel Grumbach &status); 250028916a16SEmmanuel Grumbach 250128916a16SEmmanuel Grumbach switch (status) { 250228916a16SEmmanuel Grumbach case ADD_STA_SUCCESS: 250328916a16SEmmanuel Grumbach IWL_DEBUG_WEP(mvm, "MODIFY_STA: remove sta key passed\n"); 250428916a16SEmmanuel Grumbach break; 250528916a16SEmmanuel Grumbach default: 250628916a16SEmmanuel Grumbach ret = -EIO; 250728916a16SEmmanuel Grumbach IWL_ERR(mvm, "MODIFY_STA: remove sta key failed\n"); 250828916a16SEmmanuel Grumbach break; 250928916a16SEmmanuel Grumbach } 251028916a16SEmmanuel Grumbach 251128916a16SEmmanuel Grumbach return ret; 251228916a16SEmmanuel Grumbach } 251328916a16SEmmanuel Grumbach 251426d6c16bSSara Sharon /* 251526d6c16bSSara Sharon * Send the FW a request to remove the station from it's internal data 251626d6c16bSSara Sharon * structures, and in addition remove it from the local data structure. 251726d6c16bSSara Sharon */ 251826d6c16bSSara Sharon int iwl_mvm_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 251926d6c16bSSara Sharon { 252026d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 252126d6c16bSSara Sharon int ret; 252226d6c16bSSara Sharon 252326d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 252426d6c16bSSara Sharon 2525f9084775SNathan Errera iwl_mvm_flush_sta(mvm, &mvmvif->mcast_sta, true); 2526d49394a1SSara Sharon 2527c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, mvmvif->mcast_sta.sta_id, 2528c5a976cfSJohannes Berg &mvmvif->cab_queue, 0); 252926d6c16bSSara Sharon 253026d6c16bSSara Sharon ret = iwl_mvm_rm_sta_common(mvm, mvmvif->mcast_sta.sta_id); 253126d6c16bSSara Sharon if (ret) 253226d6c16bSSara Sharon IWL_WARN(mvm, "Failed sending remove station\n"); 253326d6c16bSSara Sharon 253426d6c16bSSara Sharon return ret; 253526d6c16bSSara Sharon } 253626d6c16bSSara Sharon 2537b915c101SSara Sharon static void iwl_mvm_sync_rxq_del_ba(struct iwl_mvm *mvm, u8 baid) 253810b2b201SSara Sharon { 25395e1688ceSJohannes Berg struct iwl_mvm_delba_data notif = { 25405e1688ceSJohannes Berg .baid = baid, 2541b915c101SSara Sharon }; 25425e1688ceSJohannes Berg 25435e1688ceSJohannes Berg iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_NOTIF_DEL_BA, true, 25445e1688ceSJohannes Berg ¬if, sizeof(notif)); 254510b2b201SSara Sharon }; 254610b2b201SSara Sharon 2547b915c101SSara Sharon static void iwl_mvm_free_reorder(struct iwl_mvm *mvm, 2548b915c101SSara Sharon struct iwl_mvm_baid_data *data) 2549b915c101SSara Sharon { 2550b915c101SSara Sharon int i; 2551b915c101SSara Sharon 2552b915c101SSara Sharon iwl_mvm_sync_rxq_del_ba(mvm, data->baid); 2553b915c101SSara Sharon 2554b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2555b915c101SSara Sharon int j; 2556b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2557b915c101SSara Sharon &data->reorder_buf[i]; 2558dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2559dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2560b915c101SSara Sharon 25610690405fSSara Sharon spin_lock_bh(&reorder_buf->lock); 25620690405fSSara Sharon if (likely(!reorder_buf->num_stored)) { 25630690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 2564b915c101SSara Sharon continue; 25650690405fSSara Sharon } 2566b915c101SSara Sharon 2567b915c101SSara Sharon /* 2568b915c101SSara Sharon * This shouldn't happen in regular DELBA since the internal 2569b915c101SSara Sharon * delBA notification should trigger a release of all frames in 2570b915c101SSara Sharon * the reorder buffer. 2571b915c101SSara Sharon */ 2572b915c101SSara Sharon WARN_ON(1); 2573b915c101SSara Sharon 2574b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2575dfdddd92SJohannes Berg __skb_queue_purge(&entries[j].e.frames); 25760690405fSSara Sharon /* 25770690405fSSara Sharon * Prevent timer re-arm. This prevents a very far fetched case 25780690405fSSara Sharon * where we timed out on the notification. There may be prior 25790690405fSSara Sharon * RX frames pending in the RX queue before the notification 25800690405fSSara Sharon * that might get processed between now and the actual deletion 25810690405fSSara Sharon * and we would re-arm the timer although we are deleting the 25820690405fSSara Sharon * reorder buffer. 25830690405fSSara Sharon */ 25840690405fSSara Sharon reorder_buf->removed = true; 25850690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 25860690405fSSara Sharon del_timer_sync(&reorder_buf->reorder_timer); 2587b915c101SSara Sharon } 2588b915c101SSara Sharon } 2589b915c101SSara Sharon 2590b915c101SSara Sharon static void iwl_mvm_init_reorder_buffer(struct iwl_mvm *mvm, 2591b915c101SSara Sharon struct iwl_mvm_baid_data *data, 2592514c3069SLuca Coelho u16 ssn, u16 buf_size) 2593b915c101SSara Sharon { 2594b915c101SSara Sharon int i; 2595b915c101SSara Sharon 2596b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2597b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2598b915c101SSara Sharon &data->reorder_buf[i]; 2599dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2600dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2601b915c101SSara Sharon int j; 2602b915c101SSara Sharon 2603b915c101SSara Sharon reorder_buf->num_stored = 0; 2604b915c101SSara Sharon reorder_buf->head_sn = ssn; 2605b915c101SSara Sharon reorder_buf->buf_size = buf_size; 26060690405fSSara Sharon /* rx reorder timer */ 26078cef5344SKees Cook timer_setup(&reorder_buf->reorder_timer, 26088cef5344SKees Cook iwl_mvm_reorder_timer_expired, 0); 26090690405fSSara Sharon spin_lock_init(&reorder_buf->lock); 26100690405fSSara Sharon reorder_buf->mvm = mvm; 2611b915c101SSara Sharon reorder_buf->queue = i; 26125d43eab6SSara Sharon reorder_buf->valid = false; 2613b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2614dfdddd92SJohannes Berg __skb_queue_head_init(&entries[j].e.frames); 2615b915c101SSara Sharon } 261610b2b201SSara Sharon } 261710b2b201SSara Sharon 261897f70c56SJohannes Berg static int iwl_mvm_fw_baid_op_sta(struct iwl_mvm *mvm, 261997f70c56SJohannes Berg struct iwl_mvm_sta *mvm_sta, 262097f70c56SJohannes Berg bool start, int tid, u16 ssn, 262197f70c56SJohannes Berg u16 buf_size) 26220f3a4e48SJohannes Berg { 26230f3a4e48SJohannes Berg struct iwl_mvm_add_sta_cmd cmd = { 26240f3a4e48SJohannes Berg .mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color), 26250f3a4e48SJohannes Berg .sta_id = mvm_sta->sta_id, 26260f3a4e48SJohannes Berg .add_modify = STA_MODE_MODIFY, 26270f3a4e48SJohannes Berg }; 26280f3a4e48SJohannes Berg u32 status; 26290f3a4e48SJohannes Berg int ret; 26300f3a4e48SJohannes Berg 26310f3a4e48SJohannes Berg if (start) { 26320f3a4e48SJohannes Berg cmd.add_immediate_ba_tid = tid; 26330f3a4e48SJohannes Berg cmd.add_immediate_ba_ssn = cpu_to_le16(ssn); 26340f3a4e48SJohannes Berg cmd.rx_ba_window = cpu_to_le16(buf_size); 26350f3a4e48SJohannes Berg cmd.modify_mask = STA_MODIFY_ADD_BA_TID; 26360f3a4e48SJohannes Berg } else { 26370f3a4e48SJohannes Berg cmd.remove_immediate_ba_tid = tid; 26380f3a4e48SJohannes Berg cmd.modify_mask = STA_MODIFY_REMOVE_BA_TID; 26390f3a4e48SJohannes Berg } 26400f3a4e48SJohannes Berg 26410f3a4e48SJohannes Berg status = ADD_STA_SUCCESS; 26420f3a4e48SJohannes Berg ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 26430f3a4e48SJohannes Berg iwl_mvm_add_sta_cmd_size(mvm), 26440f3a4e48SJohannes Berg &cmd, &status); 26450f3a4e48SJohannes Berg if (ret) 26460f3a4e48SJohannes Berg return ret; 26470f3a4e48SJohannes Berg 26480f3a4e48SJohannes Berg switch (status & IWL_ADD_STA_STATUS_MASK) { 26490f3a4e48SJohannes Berg case ADD_STA_SUCCESS: 26500f3a4e48SJohannes Berg IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n", 26510f3a4e48SJohannes Berg start ? "start" : "stopp"); 26520f3a4e48SJohannes Berg if (WARN_ON(start && iwl_mvm_has_new_rx_api(mvm) && 26530f3a4e48SJohannes Berg !(status & IWL_ADD_STA_BAID_VALID_MASK))) 26540f3a4e48SJohannes Berg return -EINVAL; 26550f3a4e48SJohannes Berg return u32_get_bits(status, IWL_ADD_STA_BAID_MASK); 26560f3a4e48SJohannes Berg case ADD_STA_IMMEDIATE_BA_FAILURE: 26570f3a4e48SJohannes Berg IWL_WARN(mvm, "RX BA Session refused by fw\n"); 26580f3a4e48SJohannes Berg return -ENOSPC; 26590f3a4e48SJohannes Berg default: 26600f3a4e48SJohannes Berg IWL_ERR(mvm, "RX BA Session failed %sing, status 0x%x\n", 26610f3a4e48SJohannes Berg start ? "start" : "stopp", status); 26620f3a4e48SJohannes Berg return -EIO; 26630f3a4e48SJohannes Berg } 26640f3a4e48SJohannes Berg } 26650f3a4e48SJohannes Berg 266697f70c56SJohannes Berg static int iwl_mvm_fw_baid_op_cmd(struct iwl_mvm *mvm, 266797f70c56SJohannes Berg struct iwl_mvm_sta *mvm_sta, 266897f70c56SJohannes Berg bool start, int tid, u16 ssn, 266997f70c56SJohannes Berg u16 buf_size, int baid) 267097f70c56SJohannes Berg { 267197f70c56SJohannes Berg struct iwl_rx_baid_cfg_cmd cmd = { 267297f70c56SJohannes Berg .action = start ? cpu_to_le32(IWL_RX_BAID_ACTION_ADD) : 267397f70c56SJohannes Berg cpu_to_le32(IWL_RX_BAID_ACTION_REMOVE), 267497f70c56SJohannes Berg }; 267597f70c56SJohannes Berg u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, RX_BAID_ALLOCATION_CONFIG_CMD); 267697f70c56SJohannes Berg int ret; 267797f70c56SJohannes Berg 267897f70c56SJohannes Berg BUILD_BUG_ON(sizeof(struct iwl_rx_baid_cfg_resp) != sizeof(baid)); 267997f70c56SJohannes Berg 268097f70c56SJohannes Berg if (start) { 268197f70c56SJohannes Berg cmd.alloc.sta_id_mask = cpu_to_le32(BIT(mvm_sta->sta_id)); 268297f70c56SJohannes Berg cmd.alloc.tid = tid; 268397f70c56SJohannes Berg cmd.alloc.ssn = cpu_to_le16(ssn); 268497f70c56SJohannes Berg cmd.alloc.win_size = cpu_to_le16(buf_size); 268597f70c56SJohannes Berg baid = -EIO; 268626de4c8bSJohannes Berg } else if (iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1) == 1) { 268726de4c8bSJohannes Berg cmd.remove_v1.baid = cpu_to_le32(baid); 268826de4c8bSJohannes Berg BUILD_BUG_ON(sizeof(cmd.remove_v1) > sizeof(cmd.remove)); 268997f70c56SJohannes Berg } else { 269026de4c8bSJohannes Berg cmd.remove.sta_id_mask = cpu_to_le32(BIT(mvm_sta->sta_id)); 269126de4c8bSJohannes Berg cmd.remove.tid = cpu_to_le32(tid); 269297f70c56SJohannes Berg } 269397f70c56SJohannes Berg 269497f70c56SJohannes Berg ret = iwl_mvm_send_cmd_pdu_status(mvm, cmd_id, sizeof(cmd), 269597f70c56SJohannes Berg &cmd, &baid); 269697f70c56SJohannes Berg if (ret) 269797f70c56SJohannes Berg return ret; 269897f70c56SJohannes Berg 269997f70c56SJohannes Berg if (!start) { 270097f70c56SJohannes Berg /* ignore firmware baid on remove */ 270197f70c56SJohannes Berg baid = 0; 270297f70c56SJohannes Berg } 270397f70c56SJohannes Berg 270497f70c56SJohannes Berg IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n", 270597f70c56SJohannes Berg start ? "start" : "stopp"); 270697f70c56SJohannes Berg 270797f70c56SJohannes Berg if (baid < 0 || baid >= ARRAY_SIZE(mvm->baid_map)) 270897f70c56SJohannes Berg return -EINVAL; 270997f70c56SJohannes Berg 271097f70c56SJohannes Berg return baid; 271197f70c56SJohannes Berg } 271297f70c56SJohannes Berg 271397f70c56SJohannes Berg static int iwl_mvm_fw_baid_op(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvm_sta, 271497f70c56SJohannes Berg bool start, int tid, u16 ssn, u16 buf_size, 271597f70c56SJohannes Berg int baid) 271697f70c56SJohannes Berg { 271797f70c56SJohannes Berg if (fw_has_capa(&mvm->fw->ucode_capa, 271897f70c56SJohannes Berg IWL_UCODE_TLV_CAPA_BAID_ML_SUPPORT)) 271997f70c56SJohannes Berg return iwl_mvm_fw_baid_op_cmd(mvm, mvm_sta, start, 272097f70c56SJohannes Berg tid, ssn, buf_size, baid); 272197f70c56SJohannes Berg 272297f70c56SJohannes Berg return iwl_mvm_fw_baid_op_sta(mvm, mvm_sta, start, 272397f70c56SJohannes Berg tid, ssn, buf_size); 272497f70c56SJohannes Berg } 272597f70c56SJohannes Berg 2726e705c121SKalle Valo int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2727514c3069SLuca Coelho int tid, u16 ssn, bool start, u16 buf_size, u16 timeout) 2728e705c121SKalle Valo { 2729e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 273010b2b201SSara Sharon struct iwl_mvm_baid_data *baid_data = NULL; 27310f3a4e48SJohannes Berg int ret, baid; 2732ded5ded3SEmmanuel Grumbach u32 max_ba_id_sessions = iwl_mvm_has_new_tx_api(mvm) ? IWL_MAX_BAID : 2733ded5ded3SEmmanuel Grumbach IWL_MAX_BAID_OLD; 2734e705c121SKalle Valo 2735e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2736e705c121SKalle Valo 2737ded5ded3SEmmanuel Grumbach if (start && mvm->rx_ba_sessions >= max_ba_id_sessions) { 2738e705c121SKalle Valo IWL_WARN(mvm, "Not enough RX BA SESSIONS\n"); 2739e705c121SKalle Valo return -ENOSPC; 2740e705c121SKalle Valo } 2741e705c121SKalle Valo 274210b2b201SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && start) { 2743dfdddd92SJohannes Berg u16 reorder_buf_size = buf_size * sizeof(baid_data->entries[0]); 2744dfdddd92SJohannes Berg 2745dfdddd92SJohannes Berg /* sparse doesn't like the __align() so don't check */ 2746dfdddd92SJohannes Berg #ifndef __CHECKER__ 2747dfdddd92SJohannes Berg /* 2748dfdddd92SJohannes Berg * The division below will be OK if either the cache line size 2749dfdddd92SJohannes Berg * can be divided by the entry size (ALIGN will round up) or if 2750dfdddd92SJohannes Berg * if the entry size can be divided by the cache line size, in 2751dfdddd92SJohannes Berg * which case the ALIGN() will do nothing. 2752dfdddd92SJohannes Berg */ 2753dfdddd92SJohannes Berg BUILD_BUG_ON(SMP_CACHE_BYTES % sizeof(baid_data->entries[0]) && 2754dfdddd92SJohannes Berg sizeof(baid_data->entries[0]) % SMP_CACHE_BYTES); 2755dfdddd92SJohannes Berg #endif 2756dfdddd92SJohannes Berg 2757dfdddd92SJohannes Berg /* 2758dfdddd92SJohannes Berg * Upward align the reorder buffer size to fill an entire cache 2759dfdddd92SJohannes Berg * line for each queue, to avoid sharing cache lines between 2760dfdddd92SJohannes Berg * different queues. 2761dfdddd92SJohannes Berg */ 2762dfdddd92SJohannes Berg reorder_buf_size = ALIGN(reorder_buf_size, SMP_CACHE_BYTES); 2763dfdddd92SJohannes Berg 276410b2b201SSara Sharon /* 276510b2b201SSara Sharon * Allocate here so if allocation fails we can bail out early 276610b2b201SSara Sharon * before starting the BA session in the firmware 276710b2b201SSara Sharon */ 2768b915c101SSara Sharon baid_data = kzalloc(sizeof(*baid_data) + 2769b915c101SSara Sharon mvm->trans->num_rx_queues * 2770dfdddd92SJohannes Berg reorder_buf_size, 2771b915c101SSara Sharon GFP_KERNEL); 277210b2b201SSara Sharon if (!baid_data) 277310b2b201SSara Sharon return -ENOMEM; 2774dfdddd92SJohannes Berg 2775dfdddd92SJohannes Berg /* 2776dfdddd92SJohannes Berg * This division is why we need the above BUILD_BUG_ON(), 2777dfdddd92SJohannes Berg * if that doesn't hold then this will not be right. 2778dfdddd92SJohannes Berg */ 2779dfdddd92SJohannes Berg baid_data->entries_per_queue = 2780dfdddd92SJohannes Berg reorder_buf_size / sizeof(baid_data->entries[0]); 278110b2b201SSara Sharon } 278210b2b201SSara Sharon 278397f70c56SJohannes Berg if (iwl_mvm_has_new_rx_api(mvm) && !start) { 278497f70c56SJohannes Berg baid = mvm_sta->tid_to_baid[tid]; 278597f70c56SJohannes Berg } else { 278697f70c56SJohannes Berg /* we don't really need it in this case */ 278797f70c56SJohannes Berg baid = -1; 278897f70c56SJohannes Berg } 278997f70c56SJohannes Berg 27903538c809SLuca Coelho /* Don't send command to remove (start=0) BAID during restart */ 27913538c809SLuca Coelho if (start || !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 279297f70c56SJohannes Berg baid = iwl_mvm_fw_baid_op(mvm, mvm_sta, start, tid, ssn, buf_size, 279397f70c56SJohannes Berg baid); 27943538c809SLuca Coelho 27950f3a4e48SJohannes Berg if (baid < 0) { 27960f3a4e48SJohannes Berg ret = baid; 279710b2b201SSara Sharon goto out_free; 2798e705c121SKalle Valo } 2799e705c121SKalle Valo 280010b2b201SSara Sharon if (start) { 2801e705c121SKalle Valo mvm->rx_ba_sessions++; 280210b2b201SSara Sharon 280310b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 280410b2b201SSara Sharon return 0; 280510b2b201SSara Sharon 280610b2b201SSara Sharon baid_data->baid = baid; 280710b2b201SSara Sharon baid_data->timeout = timeout; 280810b2b201SSara Sharon baid_data->last_rx = jiffies; 28098cef5344SKees Cook baid_data->rcu_ptr = &mvm->baid_map[baid]; 28108cef5344SKees Cook timer_setup(&baid_data->session_timer, 28118cef5344SKees Cook iwl_mvm_rx_agg_session_expired, 0); 281210b2b201SSara Sharon baid_data->mvm = mvm; 281310b2b201SSara Sharon baid_data->tid = tid; 281410b2b201SSara Sharon baid_data->sta_id = mvm_sta->sta_id; 281510b2b201SSara Sharon 281610b2b201SSara Sharon mvm_sta->tid_to_baid[tid] = baid; 281710b2b201SSara Sharon if (timeout) 281810b2b201SSara Sharon mod_timer(&baid_data->session_timer, 281910b2b201SSara Sharon TU_TO_EXP_TIME(timeout * 2)); 282010b2b201SSara Sharon 28213f1c4c58SSara Sharon iwl_mvm_init_reorder_buffer(mvm, baid_data, ssn, buf_size); 282210b2b201SSara Sharon /* 282310b2b201SSara Sharon * protect the BA data with RCU to cover a case where our 282410b2b201SSara Sharon * internal RX sync mechanism will timeout (not that it's 282510b2b201SSara Sharon * supposed to happen) and we will free the session data while 282610b2b201SSara Sharon * RX is being processed in parallel 282710b2b201SSara Sharon */ 282835263a03SSara Sharon IWL_DEBUG_HT(mvm, "Sta %d(%d) is assigned to BAID %d\n", 282935263a03SSara Sharon mvm_sta->sta_id, tid, baid); 283010b2b201SSara Sharon WARN_ON(rcu_access_pointer(mvm->baid_map[baid])); 283110b2b201SSara Sharon rcu_assign_pointer(mvm->baid_map[baid], baid_data); 283260dec523SSara Sharon } else { 28330f3a4e48SJohannes Berg baid = mvm_sta->tid_to_baid[tid]; 283410b2b201SSara Sharon 283560dec523SSara Sharon if (mvm->rx_ba_sessions > 0) 2836e705c121SKalle Valo /* check that restart flow didn't zero the counter */ 2837e705c121SKalle Valo mvm->rx_ba_sessions--; 283810b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 283910b2b201SSara Sharon return 0; 2840e705c121SKalle Valo 284110b2b201SSara Sharon if (WARN_ON(baid == IWL_RX_REORDER_DATA_INVALID_BAID)) 284210b2b201SSara Sharon return -EINVAL; 284310b2b201SSara Sharon 284410b2b201SSara Sharon baid_data = rcu_access_pointer(mvm->baid_map[baid]); 284510b2b201SSara Sharon if (WARN_ON(!baid_data)) 284610b2b201SSara Sharon return -EINVAL; 284710b2b201SSara Sharon 284810b2b201SSara Sharon /* synchronize all rx queues so we can safely delete */ 2849b915c101SSara Sharon iwl_mvm_free_reorder(mvm, baid_data); 2850292a089dSSteven Rostedt (Google) timer_shutdown_sync(&baid_data->session_timer); 285110b2b201SSara Sharon RCU_INIT_POINTER(mvm->baid_map[baid], NULL); 285210b2b201SSara Sharon kfree_rcu(baid_data, rcu_head); 285335263a03SSara Sharon IWL_DEBUG_HT(mvm, "BAID %d is free\n", baid); 28542438d430SJohannes Berg 28552438d430SJohannes Berg /* 28562438d430SJohannes Berg * After we've deleted it, do another queue sync 28572438d430SJohannes Berg * so if an IWL_MVM_RXQ_NSSN_SYNC was concurrently 28582438d430SJohannes Berg * running it won't find a new session in the old 28592438d430SJohannes Berg * BAID. It can find the NULL pointer for the BAID, 28602438d430SJohannes Berg * but we must not have it find a different session. 28612438d430SJohannes Berg */ 28622438d430SJohannes Berg iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, 28632438d430SJohannes Berg true, NULL, 0); 286410b2b201SSara Sharon } 286510b2b201SSara Sharon return 0; 286610b2b201SSara Sharon 286710b2b201SSara Sharon out_free: 286810b2b201SSara Sharon kfree(baid_data); 2869e705c121SKalle Valo return ret; 2870e705c121SKalle Valo } 2871e705c121SKalle Valo 28729794c64fSLiad Kaufman int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2873e705c121SKalle Valo int tid, u8 queue, bool start) 2874e705c121SKalle Valo { 2875e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2876e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 2877e705c121SKalle Valo int ret; 2878e705c121SKalle Valo u32 status; 2879e705c121SKalle Valo 2880e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2881e705c121SKalle Valo 2882e705c121SKalle Valo if (start) { 2883e705c121SKalle Valo mvm_sta->tfd_queue_msk |= BIT(queue); 2884e705c121SKalle Valo mvm_sta->tid_disable_agg &= ~BIT(tid); 2885e705c121SKalle Valo } else { 2886cf961e16SLiad Kaufman /* In DQA-mode the queue isn't removed on agg termination */ 2887e705c121SKalle Valo mvm_sta->tid_disable_agg |= BIT(tid); 2888e705c121SKalle Valo } 2889e705c121SKalle Valo 2890e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 2891e705c121SKalle Valo cmd.sta_id = mvm_sta->sta_id; 2892e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 2893bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) 2894bb49701bSSara Sharon cmd.modify_mask = STA_MODIFY_QUEUES; 2895bb49701bSSara Sharon cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 2896e705c121SKalle Valo cmd.tfd_queue_msk = cpu_to_le32(mvm_sta->tfd_queue_msk); 2897e705c121SKalle Valo cmd.tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg); 2898e705c121SKalle Valo 2899e705c121SKalle Valo status = ADD_STA_SUCCESS; 2900854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 2901854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 2902e705c121SKalle Valo &cmd, &status); 2903e705c121SKalle Valo if (ret) 2904e705c121SKalle Valo return ret; 2905e705c121SKalle Valo 2906837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 2907e705c121SKalle Valo case ADD_STA_SUCCESS: 2908e705c121SKalle Valo break; 2909e705c121SKalle Valo default: 2910e705c121SKalle Valo ret = -EIO; 2911e705c121SKalle Valo IWL_ERR(mvm, "TX BA Session failed %sing, status 0x%x\n", 2912e705c121SKalle Valo start ? "start" : "stopp", status); 2913e705c121SKalle Valo break; 2914e705c121SKalle Valo } 2915e705c121SKalle Valo 2916e705c121SKalle Valo return ret; 2917e705c121SKalle Valo } 2918e705c121SKalle Valo 2919e705c121SKalle Valo const u8 tid_to_mac80211_ac[] = { 2920e705c121SKalle Valo IEEE80211_AC_BE, 2921e705c121SKalle Valo IEEE80211_AC_BK, 2922e705c121SKalle Valo IEEE80211_AC_BK, 2923e705c121SKalle Valo IEEE80211_AC_BE, 2924e705c121SKalle Valo IEEE80211_AC_VI, 2925e705c121SKalle Valo IEEE80211_AC_VI, 2926e705c121SKalle Valo IEEE80211_AC_VO, 2927e705c121SKalle Valo IEEE80211_AC_VO, 29289794c64fSLiad Kaufman IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 2929e705c121SKalle Valo }; 2930e705c121SKalle Valo 2931e705c121SKalle Valo static const u8 tid_to_ucode_ac[] = { 2932e705c121SKalle Valo AC_BE, 2933e705c121SKalle Valo AC_BK, 2934e705c121SKalle Valo AC_BK, 2935e705c121SKalle Valo AC_BE, 2936e705c121SKalle Valo AC_VI, 2937e705c121SKalle Valo AC_VI, 2938e705c121SKalle Valo AC_VO, 2939e705c121SKalle Valo AC_VO, 2940e705c121SKalle Valo }; 2941e705c121SKalle Valo 2942e705c121SKalle Valo int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2943e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 *ssn) 2944e705c121SKalle Valo { 2945e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2946e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 2947dd32162dSLiad Kaufman u16 normalized_ssn; 2948b0d795a9SMordechay Goodstein u16 txq_id; 2949e705c121SKalle Valo int ret; 2950e705c121SKalle Valo 2951e705c121SKalle Valo if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT)) 2952e705c121SKalle Valo return -EINVAL; 2953e705c121SKalle Valo 2954bd800e41SNaftali Goldstein if (mvmsta->tid_data[tid].state != IWL_AGG_QUEUED && 2955bd800e41SNaftali Goldstein mvmsta->tid_data[tid].state != IWL_AGG_OFF) { 2956bd800e41SNaftali Goldstein IWL_ERR(mvm, 2957bd800e41SNaftali Goldstein "Start AGG when state is not IWL_AGG_QUEUED or IWL_AGG_OFF %d!\n", 2958e705c121SKalle Valo mvmsta->tid_data[tid].state); 2959e705c121SKalle Valo return -ENXIO; 2960e705c121SKalle Valo } 2961e705c121SKalle Valo 2962e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2963e705c121SKalle Valo 2964bd8f3fc6SLiad Kaufman if (mvmsta->tid_data[tid].txq_id == IWL_MVM_INVALID_QUEUE && 2965bd8f3fc6SLiad Kaufman iwl_mvm_has_new_tx_api(mvm)) { 2966bd8f3fc6SLiad Kaufman u8 ac = tid_to_mac80211_ac[tid]; 2967bd8f3fc6SLiad Kaufman 2968bd8f3fc6SLiad Kaufman ret = iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 2969bd8f3fc6SLiad Kaufman if (ret) 2970bd8f3fc6SLiad Kaufman return ret; 2971bd8f3fc6SLiad Kaufman } 2972bd8f3fc6SLiad Kaufman 2973e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2974e705c121SKalle Valo 2975cf961e16SLiad Kaufman /* 2976cf961e16SLiad Kaufman * Note the possible cases: 29774a6d2e52SAvraham Stern * 1. An enabled TXQ - TXQ needs to become agg'ed 29784a6d2e52SAvraham Stern * 2. The TXQ hasn't yet been enabled, so find a free one and mark 29794a6d2e52SAvraham Stern * it as reserved 2980cf961e16SLiad Kaufman */ 2981cf961e16SLiad Kaufman txq_id = mvmsta->tid_data[tid].txq_id; 298234e10860SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) { 2983b0d795a9SMordechay Goodstein ret = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 2984c8f54701SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 2985c8f54701SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 2986b0d795a9SMordechay Goodstein if (ret < 0) { 2987e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate agg queue\n"); 2988f3f240f9SJohannes Berg goto out; 2989e705c121SKalle Valo } 2990cf961e16SLiad Kaufman 2991b0d795a9SMordechay Goodstein txq_id = ret; 2992b0d795a9SMordechay Goodstein 2993cf961e16SLiad Kaufman /* TXQ hasn't yet been enabled, so mark it only as reserved */ 2994cf961e16SLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_RESERVED; 2995b0d795a9SMordechay Goodstein } else if (WARN_ON(txq_id >= IWL_MAX_HW_QUEUES)) { 2996b0d795a9SMordechay Goodstein ret = -ENXIO; 2997b0d795a9SMordechay Goodstein IWL_ERR(mvm, "tid_id %d out of range (0, %d)!\n", 2998b0d795a9SMordechay Goodstein tid, IWL_MAX_HW_QUEUES - 1); 2999b0d795a9SMordechay Goodstein goto out; 3000b0d795a9SMordechay Goodstein 30014a6d2e52SAvraham Stern } else if (unlikely(mvm->queue_info[txq_id].status == 30024a6d2e52SAvraham Stern IWL_MVM_QUEUE_SHARED)) { 30034a6d2e52SAvraham Stern ret = -ENXIO; 30044a6d2e52SAvraham Stern IWL_DEBUG_TX_QUEUES(mvm, 30054a6d2e52SAvraham Stern "Can't start tid %d agg on shared queue!\n", 30064a6d2e52SAvraham Stern tid); 3007f3f240f9SJohannes Berg goto out; 3008cf961e16SLiad Kaufman } 30099f9af3d7SLiad Kaufman 3010cf961e16SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 3011cf961e16SLiad Kaufman "AGG for tid %d will be on queue #%d\n", 3012cf961e16SLiad Kaufman tid, txq_id); 3013cf961e16SLiad Kaufman 3014e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 3015e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3016e705c121SKalle Valo tid_data->txq_id = txq_id; 3017e705c121SKalle Valo *ssn = tid_data->ssn; 3018e705c121SKalle Valo 3019e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 3020e705c121SKalle Valo "Start AGG: sta %d tid %d queue %d - ssn = %d, next_recl = %d\n", 3021e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->ssn, 3022e705c121SKalle Valo tid_data->next_reclaimed); 3023e705c121SKalle Valo 3024dd32162dSLiad Kaufman /* 30252f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 3026dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 3027dd32162dSLiad Kaufman */ 3028dd32162dSLiad Kaufman normalized_ssn = tid_data->ssn; 3029286ca8ebSLuca Coelho if (mvm->trans->trans_cfg->gen2) 3030dd32162dSLiad Kaufman normalized_ssn &= 0xff; 3031dd32162dSLiad Kaufman 3032dd32162dSLiad Kaufman if (normalized_ssn == tid_data->next_reclaimed) { 3033e705c121SKalle Valo tid_data->state = IWL_AGG_STARTING; 30342ce113deSJohannes Berg ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 3035e705c121SKalle Valo } else { 3036e705c121SKalle Valo tid_data->state = IWL_EMPTYING_HW_QUEUE_ADDBA; 30377e0ca723SMordechay Goodstein ret = IEEE80211_AMPDU_TX_START_DELAY_ADDBA; 30382ce113deSJohannes Berg } 3039e705c121SKalle Valo 30409f9af3d7SLiad Kaufman out: 3041e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3042e705c121SKalle Valo 3043e705c121SKalle Valo return ret; 3044e705c121SKalle Valo } 3045e705c121SKalle Valo 3046e705c121SKalle Valo int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3047514c3069SLuca Coelho struct ieee80211_sta *sta, u16 tid, u16 buf_size, 3048bb81bb68SEmmanuel Grumbach bool amsdu) 3049e705c121SKalle Valo { 3050e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3051e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3052e705c121SKalle Valo unsigned int wdg_timeout = 3053e705c121SKalle Valo iwl_mvm_get_wd_timeout(mvm, vif, sta->tdls, false); 3054eea76c36SEmmanuel Grumbach int queue, ret; 3055cf961e16SLiad Kaufman bool alloc_queue = true; 30569f9af3d7SLiad Kaufman enum iwl_mvm_queue_status queue_status; 3057e705c121SKalle Valo u16 ssn; 3058e705c121SKalle Valo 3059eea76c36SEmmanuel Grumbach struct iwl_trans_txq_scd_cfg cfg = { 3060eea76c36SEmmanuel Grumbach .sta_id = mvmsta->sta_id, 3061eea76c36SEmmanuel Grumbach .tid = tid, 3062eea76c36SEmmanuel Grumbach .frame_limit = buf_size, 3063eea76c36SEmmanuel Grumbach .aggregate = true, 3064eea76c36SEmmanuel Grumbach }; 3065eea76c36SEmmanuel Grumbach 3066ecaf71deSGregory Greenman /* 3067ecaf71deSGregory Greenman * When FW supports TLC_OFFLOAD, it also implements Tx aggregation 3068ecaf71deSGregory Greenman * manager, so this function should never be called in this case. 3069ecaf71deSGregory Greenman */ 30704243edb4SEmmanuel Grumbach if (WARN_ON_ONCE(iwl_mvm_has_tlc_offload(mvm))) 3071ecaf71deSGregory Greenman return -EINVAL; 3072ecaf71deSGregory Greenman 3073e705c121SKalle Valo BUILD_BUG_ON((sizeof(mvmsta->agg_tids) * BITS_PER_BYTE) 3074e705c121SKalle Valo != IWL_MAX_TID_COUNT); 3075e705c121SKalle Valo 3076e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3077e705c121SKalle Valo ssn = tid_data->ssn; 3078e705c121SKalle Valo queue = tid_data->txq_id; 3079e705c121SKalle Valo tid_data->state = IWL_AGG_ON; 3080e705c121SKalle Valo mvmsta->agg_tids |= BIT(tid); 3081e705c121SKalle Valo tid_data->ssn = 0xffff; 3082bb81bb68SEmmanuel Grumbach tid_data->amsdu_in_ampdu_allowed = amsdu; 3083e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3084e705c121SKalle Valo 308534e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 308634e10860SSara Sharon /* 30870ec9257bSSara Sharon * If there is no queue for this tid, iwl_mvm_sta_tx_agg_start() 30880ec9257bSSara Sharon * would have failed, so if we are here there is no need to 30890ec9257bSSara Sharon * allocate a queue. 30900ec9257bSSara Sharon * However, if aggregation size is different than the default 30910ec9257bSSara Sharon * size, the scheduler should be reconfigured. 30920ec9257bSSara Sharon * We cannot do this with the new TX API, so return unsupported 30930ec9257bSSara Sharon * for now, until it will be offloaded to firmware.. 30940ec9257bSSara Sharon * Note that if SCD default value changes - this condition 30950ec9257bSSara Sharon * should be updated as well. 309634e10860SSara Sharon */ 30970ec9257bSSara Sharon if (buf_size < IWL_FRAME_LIMIT) 309834e10860SSara Sharon return -ENOTSUPP; 309934e10860SSara Sharon 310034e10860SSara Sharon ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 310134e10860SSara Sharon if (ret) 310234e10860SSara Sharon return -EIO; 310334e10860SSara Sharon goto out; 310434e10860SSara Sharon } 310534e10860SSara Sharon 3106eea76c36SEmmanuel Grumbach cfg.fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 3107e705c121SKalle Valo 31089f9af3d7SLiad Kaufman queue_status = mvm->queue_info[queue].status; 31099f9af3d7SLiad Kaufman 3110cf961e16SLiad Kaufman /* Maybe there is no need to even alloc a queue... */ 3111cf961e16SLiad Kaufman if (mvm->queue_info[queue].status == IWL_MVM_QUEUE_READY) 3112cf961e16SLiad Kaufman alloc_queue = false; 3113cf961e16SLiad Kaufman 3114cf961e16SLiad Kaufman /* 3115cf961e16SLiad Kaufman * Only reconfig the SCD for the queue if the window size has 3116cf961e16SLiad Kaufman * changed from current (become smaller) 3117cf961e16SLiad Kaufman */ 31180ec9257bSSara Sharon if (!alloc_queue && buf_size < IWL_FRAME_LIMIT) { 3119cf961e16SLiad Kaufman /* 3120cf961e16SLiad Kaufman * If reconfiguring an existing queue, it first must be 3121cf961e16SLiad Kaufman * drained 3122cf961e16SLiad Kaufman */ 3123a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 3124cf961e16SLiad Kaufman BIT(queue)); 3125cf961e16SLiad Kaufman if (ret) { 3126cf961e16SLiad Kaufman IWL_ERR(mvm, 3127cf961e16SLiad Kaufman "Error draining queue before reconfig\n"); 3128cf961e16SLiad Kaufman return ret; 3129cf961e16SLiad Kaufman } 3130cf961e16SLiad Kaufman 3131cf961e16SLiad Kaufman ret = iwl_mvm_reconfig_scd(mvm, queue, cfg.fifo, 3132cf961e16SLiad Kaufman mvmsta->sta_id, tid, 3133cf961e16SLiad Kaufman buf_size, ssn); 3134cf961e16SLiad Kaufman if (ret) { 3135cf961e16SLiad Kaufman IWL_ERR(mvm, 3136cf961e16SLiad Kaufman "Error reconfiguring TXQ #%d\n", queue); 3137cf961e16SLiad Kaufman return ret; 3138cf961e16SLiad Kaufman } 3139cf961e16SLiad Kaufman } 3140cf961e16SLiad Kaufman 3141cf961e16SLiad Kaufman if (alloc_queue) 3142cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, queue, ssn, 3143cf961e16SLiad Kaufman &cfg, wdg_timeout); 3144e705c121SKalle Valo 31459f9af3d7SLiad Kaufman /* Send ADD_STA command to enable aggs only if the queue isn't shared */ 31469f9af3d7SLiad Kaufman if (queue_status != IWL_MVM_QUEUE_SHARED) { 3147e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 3148e705c121SKalle Valo if (ret) 3149e705c121SKalle Valo return -EIO; 31509f9af3d7SLiad Kaufman } 3151e705c121SKalle Valo 3152e705c121SKalle Valo /* No need to mark as reserved */ 3153cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 3154e705c121SKalle Valo 315534e10860SSara Sharon out: 3156e705c121SKalle Valo /* 3157e705c121SKalle Valo * Even though in theory the peer could have different 3158e705c121SKalle Valo * aggregation reorder buffer sizes for different sessions, 3159e705c121SKalle Valo * our ucode doesn't allow for that and has a global limit 3160e705c121SKalle Valo * for each station. Therefore, use the minimum of all the 3161e705c121SKalle Valo * aggregation sessions and our default value. 3162e705c121SKalle Valo */ 3163e705c121SKalle Valo mvmsta->max_agg_bufsize = 3164e705c121SKalle Valo min(mvmsta->max_agg_bufsize, buf_size); 3165ecaf71deSGregory Greenman mvmsta->lq_sta.rs_drv.lq.agg_frame_cnt_limit = mvmsta->max_agg_bufsize; 3166e705c121SKalle Valo 3167e705c121SKalle Valo IWL_DEBUG_HT(mvm, "Tx aggregation enabled on ra = %pM tid = %d\n", 3168e705c121SKalle Valo sta->addr, tid); 3169e705c121SKalle Valo 3170cd4d6b0bSGregory Greenman return iwl_mvm_send_lq_cmd(mvm, &mvmsta->lq_sta.rs_drv.lq); 3171e705c121SKalle Valo } 3172e705c121SKalle Valo 317334e10860SSara Sharon static void iwl_mvm_unreserve_agg_queue(struct iwl_mvm *mvm, 317434e10860SSara Sharon struct iwl_mvm_sta *mvmsta, 31754b387906SAvraham Stern struct iwl_mvm_tid_data *tid_data) 317634e10860SSara Sharon { 31774b387906SAvraham Stern u16 txq_id = tid_data->txq_id; 31784b387906SAvraham Stern 3179f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 3180f3f240f9SJohannes Berg 318134e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 318234e10860SSara Sharon return; 318334e10860SSara Sharon 318434e10860SSara Sharon /* 318534e10860SSara Sharon * The TXQ is marked as reserved only if no traffic came through yet 318634e10860SSara Sharon * This means no traffic has been sent on this TID (agg'd or not), so 318734e10860SSara Sharon * we no longer have use for the queue. Since it hasn't even been 318834e10860SSara Sharon * allocated through iwl_mvm_enable_txq, so we can just mark it back as 318934e10860SSara Sharon * free. 319034e10860SSara Sharon */ 31914b387906SAvraham Stern if (mvm->queue_info[txq_id].status == IWL_MVM_QUEUE_RESERVED) { 319234e10860SSara Sharon mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_FREE; 31934b387906SAvraham Stern tid_data->txq_id = IWL_MVM_INVALID_QUEUE; 31944b387906SAvraham Stern } 319534e10860SSara Sharon } 319634e10860SSara Sharon 3197e705c121SKalle Valo int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3198e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3199e705c121SKalle Valo { 3200e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3201e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3202e705c121SKalle Valo u16 txq_id; 3203e705c121SKalle Valo int err; 3204e705c121SKalle Valo 3205e705c121SKalle Valo /* 3206e705c121SKalle Valo * If mac80211 is cleaning its state, then say that we finished since 3207e705c121SKalle Valo * our state has been cleared anyway. 3208e705c121SKalle Valo */ 3209e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3210e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3211e705c121SKalle Valo return 0; 3212e705c121SKalle Valo } 3213e705c121SKalle Valo 3214e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3215e705c121SKalle Valo 3216e705c121SKalle Valo txq_id = tid_data->txq_id; 3217e705c121SKalle Valo 3218e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Stop AGG: sta %d tid %d q %d state %d\n", 3219e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 3220e705c121SKalle Valo 3221e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3222e705c121SKalle Valo 32234b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3224e705c121SKalle Valo 3225e705c121SKalle Valo switch (tid_data->state) { 3226e705c121SKalle Valo case IWL_AGG_ON: 3227e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3228e705c121SKalle Valo 3229e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 3230e705c121SKalle Valo "ssn = %d, next_recl = %d\n", 3231e705c121SKalle Valo tid_data->ssn, tid_data->next_reclaimed); 3232e705c121SKalle Valo 3233e705c121SKalle Valo tid_data->ssn = 0xffff; 3234e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3235e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3236e705c121SKalle Valo 3237e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3238e705c121SKalle Valo 3239e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3240e705c121SKalle Valo return 0; 3241e705c121SKalle Valo case IWL_AGG_STARTING: 3242e705c121SKalle Valo case IWL_EMPTYING_HW_QUEUE_ADDBA: 3243e705c121SKalle Valo /* 3244e705c121SKalle Valo * The agg session has been stopped before it was set up. This 3245e705c121SKalle Valo * can happen when the AddBA timer times out for example. 3246e705c121SKalle Valo */ 3247e705c121SKalle Valo 3248e705c121SKalle Valo /* No barriers since we are under mutex */ 3249e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3250e705c121SKalle Valo 3251e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3252e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3253e705c121SKalle Valo err = 0; 3254e705c121SKalle Valo break; 3255e705c121SKalle Valo default: 3256e705c121SKalle Valo IWL_ERR(mvm, 3257e705c121SKalle Valo "Stopping AGG while state not ON or starting for %d on %d (%d)\n", 3258e705c121SKalle Valo mvmsta->sta_id, tid, tid_data->state); 3259e705c121SKalle Valo IWL_ERR(mvm, 3260e705c121SKalle Valo "\ttid_data->txq_id = %d\n", tid_data->txq_id); 3261e705c121SKalle Valo err = -EINVAL; 3262e705c121SKalle Valo } 3263e705c121SKalle Valo 3264e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3265e705c121SKalle Valo 3266e705c121SKalle Valo return err; 3267e705c121SKalle Valo } 3268e705c121SKalle Valo 3269e705c121SKalle Valo int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3270e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3271e705c121SKalle Valo { 3272e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3273e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3274e705c121SKalle Valo u16 txq_id; 3275e705c121SKalle Valo enum iwl_mvm_agg_state old_state; 3276e705c121SKalle Valo 3277e705c121SKalle Valo /* 3278e705c121SKalle Valo * First set the agg state to OFF to avoid calling 3279e705c121SKalle Valo * ieee80211_stop_tx_ba_cb in iwl_mvm_check_ratid_empty. 3280e705c121SKalle Valo */ 3281e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3282e705c121SKalle Valo txq_id = tid_data->txq_id; 3283e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Flush AGG: sta %d tid %d q %d state %d\n", 3284e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 3285e705c121SKalle Valo old_state = tid_data->state; 3286e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3287e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3288e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3289e705c121SKalle Valo 32904b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3291e705c121SKalle Valo 3292e705c121SKalle Valo if (old_state >= IWL_AGG_ON) { 3293e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, true); 3294d167e81aSMordechai Goodstein 3295d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) { 3296d167e81aSMordechai Goodstein if (iwl_mvm_flush_sta_tids(mvm, mvmsta->sta_id, 3297d4e3a341SMordechay Goodstein BIT(tid))) 3298d167e81aSMordechai Goodstein IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 3299d167e81aSMordechai Goodstein iwl_trans_wait_txq_empty(mvm->trans, txq_id); 3300d167e81aSMordechai Goodstein } else { 3301d4e3a341SMordechay Goodstein if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id))) 3302e705c121SKalle Valo IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 33030b90964aSSara Sharon iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(txq_id)); 3304d167e81aSMordechai Goodstein } 3305d6d517b7SSara Sharon 3306e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, false); 3307e705c121SKalle Valo 3308e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3309e705c121SKalle Valo } 3310e705c121SKalle Valo 3311e705c121SKalle Valo return 0; 3312e705c121SKalle Valo } 3313e705c121SKalle Valo 3314e705c121SKalle Valo static int iwl_mvm_set_fw_key_idx(struct iwl_mvm *mvm) 3315e705c121SKalle Valo { 3316e705c121SKalle Valo int i, max = -1, max_offs = -1; 3317e705c121SKalle Valo 3318e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3319e705c121SKalle Valo 3320e705c121SKalle Valo /* Pick the unused key offset with the highest 'deleted' 3321e705c121SKalle Valo * counter. Every time a key is deleted, all the counters 3322e705c121SKalle Valo * are incremented and the one that was just deleted is 3323e705c121SKalle Valo * reset to zero. Thus, the highest counter is the one 3324e705c121SKalle Valo * that was deleted longest ago. Pick that one. 3325e705c121SKalle Valo */ 3326e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3327e705c121SKalle Valo if (test_bit(i, mvm->fw_key_table)) 3328e705c121SKalle Valo continue; 3329e705c121SKalle Valo if (mvm->fw_key_deleted[i] > max) { 3330e705c121SKalle Valo max = mvm->fw_key_deleted[i]; 3331e705c121SKalle Valo max_offs = i; 3332e705c121SKalle Valo } 3333e705c121SKalle Valo } 3334e705c121SKalle Valo 3335e705c121SKalle Valo if (max_offs < 0) 3336e705c121SKalle Valo return STA_KEY_IDX_INVALID; 3337e705c121SKalle Valo 3338e705c121SKalle Valo return max_offs; 3339e705c121SKalle Valo } 3340e705c121SKalle Valo 33415f7a1847SJohannes Berg static struct iwl_mvm_sta *iwl_mvm_get_key_sta(struct iwl_mvm *mvm, 33424615fd15SEmmanuel Grumbach struct ieee80211_vif *vif, 3343e705c121SKalle Valo struct ieee80211_sta *sta) 3344e705c121SKalle Valo { 3345e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3346e705c121SKalle Valo 33475f7a1847SJohannes Berg if (sta) 33485f7a1847SJohannes Berg return iwl_mvm_sta_from_mac80211(sta); 3349e705c121SKalle Valo 3350e705c121SKalle Valo /* 3351e705c121SKalle Valo * The device expects GTKs for station interfaces to be 3352e705c121SKalle Valo * installed as GTKs for the AP station. If we have no 3353e705c121SKalle Valo * station ID, then use AP's station ID. 3354e705c121SKalle Valo */ 3355e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 33560ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 33574615fd15SEmmanuel Grumbach u8 sta_id = mvmvif->ap_sta_id; 33584615fd15SEmmanuel Grumbach 33597d6a1ab6SEmmanuel Grumbach sta = rcu_dereference_check(mvm->fw_id_to_mac_id[sta_id], 33607d6a1ab6SEmmanuel Grumbach lockdep_is_held(&mvm->mutex)); 33617d6a1ab6SEmmanuel Grumbach 33624615fd15SEmmanuel Grumbach /* 33634615fd15SEmmanuel Grumbach * It is possible that the 'sta' parameter is NULL, 33644615fd15SEmmanuel Grumbach * for example when a GTK is removed - the sta_id will then 33654615fd15SEmmanuel Grumbach * be the AP ID, and no station was passed by mac80211. 33664615fd15SEmmanuel Grumbach */ 33677d6a1ab6SEmmanuel Grumbach if (IS_ERR_OR_NULL(sta)) 33687d6a1ab6SEmmanuel Grumbach return NULL; 33697d6a1ab6SEmmanuel Grumbach 33707d6a1ab6SEmmanuel Grumbach return iwl_mvm_sta_from_mac80211(sta); 33714615fd15SEmmanuel Grumbach } 3372e705c121SKalle Valo 33735f7a1847SJohannes Berg return NULL; 3374e705c121SKalle Valo } 3375e705c121SKalle Valo 3376a6dfbd04SJohannes Berg static int iwl_mvm_pn_cmp(const u8 *pn1, const u8 *pn2, int len) 3377a6dfbd04SJohannes Berg { 3378a6dfbd04SJohannes Berg int i; 3379a6dfbd04SJohannes Berg 3380a6dfbd04SJohannes Berg for (i = len - 1; i >= 0; i--) { 3381a6dfbd04SJohannes Berg if (pn1[i] > pn2[i]) 3382a6dfbd04SJohannes Berg return 1; 3383a6dfbd04SJohannes Berg if (pn1[i] < pn2[i]) 3384a6dfbd04SJohannes Berg return -1; 3385a6dfbd04SJohannes Berg } 3386a6dfbd04SJohannes Berg 3387a6dfbd04SJohannes Berg return 0; 3388a6dfbd04SJohannes Berg } 3389a6dfbd04SJohannes Berg 3390e705c121SKalle Valo static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm, 339185aeb58cSDavid Spinadel u32 sta_id, 339245c458b4SSara Sharon struct ieee80211_key_conf *key, bool mcast, 33934615fd15SEmmanuel Grumbach u32 tkip_iv32, u16 *tkip_p1k, u32 cmd_flags, 33944883145aSEmmanuel Grumbach u8 key_offset, bool mfp) 3395e705c121SKalle Valo { 339645c458b4SSara Sharon union { 339745c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 339845c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd cmd; 339945c458b4SSara Sharon } u = {}; 3400e705c121SKalle Valo __le16 key_flags; 3401e705c121SKalle Valo int ret; 3402e705c121SKalle Valo u32 status; 3403e705c121SKalle Valo u16 keyidx; 340445c458b4SSara Sharon u64 pn = 0; 340545c458b4SSara Sharon int i, size; 340645c458b4SSara Sharon bool new_api = fw_has_api(&mvm->fw->ucode_capa, 340745c458b4SSara Sharon IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 3408971cbe50SJohannes Berg int api_ver = iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA_KEY, 3409199d895fSJohannes Berg new_api ? 2 : 1); 3410e705c121SKalle Valo 341185aeb58cSDavid Spinadel if (sta_id == IWL_MVM_INVALID_STA) 341285aeb58cSDavid Spinadel return -EINVAL; 341385aeb58cSDavid Spinadel 341445c458b4SSara Sharon keyidx = (key->keyidx << STA_KEY_FLG_KEYID_POS) & 3415e705c121SKalle Valo STA_KEY_FLG_KEYID_MSK; 3416e705c121SKalle Valo key_flags = cpu_to_le16(keyidx); 3417e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_KEY_MAP); 3418e705c121SKalle Valo 341945c458b4SSara Sharon switch (key->cipher) { 3420e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 3421e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_TKIP); 3422199d895fSJohannes Berg if (api_ver >= 2) { 342345c458b4SSara Sharon memcpy((void *)&u.cmd.tx_mic_key, 342445c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], 342545c458b4SSara Sharon IWL_MIC_KEY_SIZE); 342645c458b4SSara Sharon 342745c458b4SSara Sharon memcpy((void *)&u.cmd.rx_mic_key, 342845c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], 342945c458b4SSara Sharon IWL_MIC_KEY_SIZE); 343045c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 343145c458b4SSara Sharon 343245c458b4SSara Sharon } else { 343345c458b4SSara Sharon u.cmd_v1.tkip_rx_tsc_byte2 = tkip_iv32; 3434e705c121SKalle Valo for (i = 0; i < 5; i++) 343545c458b4SSara Sharon u.cmd_v1.tkip_rx_ttak[i] = 343645c458b4SSara Sharon cpu_to_le16(tkip_p1k[i]); 343745c458b4SSara Sharon } 343845c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3439e705c121SKalle Valo break; 3440e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 3441e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_CCM); 344245c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3443199d895fSJohannes Berg if (api_ver >= 2) 344445c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 3445e705c121SKalle Valo break; 3446e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 3447e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_13BYTES); 34485a2abdcaSGustavo A. R. Silva fallthrough; 3449e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 3450e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP); 345145c458b4SSara Sharon memcpy(u.cmd.common.key + 3, key->key, key->keylen); 3452e705c121SKalle Valo break; 34532a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 34542a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_KEY_32BYTES); 34555a2abdcaSGustavo A. R. Silva fallthrough; 34562a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 34572a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_GCMP); 345845c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3459199d895fSJohannes Berg if (api_ver >= 2) 346045c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 34612a53d166SAyala Beker break; 3462e705c121SKalle Valo default: 3463e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_EXT); 346445c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3465e705c121SKalle Valo } 3466e705c121SKalle Valo 3467e705c121SKalle Valo if (mcast) 3468e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 34694883145aSEmmanuel Grumbach if (mfp) 34704883145aSEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MFP); 3471e705c121SKalle Valo 347245c458b4SSara Sharon u.cmd.common.key_offset = key_offset; 347345c458b4SSara Sharon u.cmd.common.key_flags = key_flags; 347485aeb58cSDavid Spinadel u.cmd.common.sta_id = sta_id; 347545c458b4SSara Sharon 3476a6dfbd04SJohannes Berg if (key->cipher == WLAN_CIPHER_SUITE_TKIP) 3477a6dfbd04SJohannes Berg i = 0; 3478a6dfbd04SJohannes Berg else 3479a6dfbd04SJohannes Berg i = -1; 3480a6dfbd04SJohannes Berg 3481a6dfbd04SJohannes Berg for (; i < IEEE80211_NUM_TIDS; i++) { 3482a6dfbd04SJohannes Berg struct ieee80211_key_seq seq = {}; 3483a6dfbd04SJohannes Berg u8 _rx_pn[IEEE80211_MAX_PN_LEN] = {}, *rx_pn = _rx_pn; 3484a6dfbd04SJohannes Berg int rx_pn_len = 8; 3485199d895fSJohannes Berg /* there's a hole at 2/3 in FW format depending on version */ 3486199d895fSJohannes Berg int hole = api_ver >= 3 ? 0 : 2; 3487a6dfbd04SJohannes Berg 3488a6dfbd04SJohannes Berg ieee80211_get_key_rx_seq(key, i, &seq); 3489a6dfbd04SJohannes Berg 3490a6dfbd04SJohannes Berg if (key->cipher == WLAN_CIPHER_SUITE_TKIP) { 3491a6dfbd04SJohannes Berg rx_pn[0] = seq.tkip.iv16; 3492a6dfbd04SJohannes Berg rx_pn[1] = seq.tkip.iv16 >> 8; 3493199d895fSJohannes Berg rx_pn[2 + hole] = seq.tkip.iv32; 3494199d895fSJohannes Berg rx_pn[3 + hole] = seq.tkip.iv32 >> 8; 3495199d895fSJohannes Berg rx_pn[4 + hole] = seq.tkip.iv32 >> 16; 3496199d895fSJohannes Berg rx_pn[5 + hole] = seq.tkip.iv32 >> 24; 3497a6dfbd04SJohannes Berg } else if (key_flags & cpu_to_le16(STA_KEY_FLG_EXT)) { 3498a6dfbd04SJohannes Berg rx_pn = seq.hw.seq; 3499a6dfbd04SJohannes Berg rx_pn_len = seq.hw.seq_len; 3500a6dfbd04SJohannes Berg } else { 3501a6dfbd04SJohannes Berg rx_pn[0] = seq.ccmp.pn[0]; 3502a6dfbd04SJohannes Berg rx_pn[1] = seq.ccmp.pn[1]; 3503199d895fSJohannes Berg rx_pn[2 + hole] = seq.ccmp.pn[2]; 3504199d895fSJohannes Berg rx_pn[3 + hole] = seq.ccmp.pn[3]; 3505199d895fSJohannes Berg rx_pn[4 + hole] = seq.ccmp.pn[4]; 3506199d895fSJohannes Berg rx_pn[5 + hole] = seq.ccmp.pn[5]; 3507a6dfbd04SJohannes Berg } 3508a6dfbd04SJohannes Berg 3509a6dfbd04SJohannes Berg if (iwl_mvm_pn_cmp(rx_pn, (u8 *)&u.cmd.common.rx_secur_seq_cnt, 3510a6dfbd04SJohannes Berg rx_pn_len) > 0) 3511a6dfbd04SJohannes Berg memcpy(&u.cmd.common.rx_secur_seq_cnt, rx_pn, 3512a6dfbd04SJohannes Berg rx_pn_len); 3513a6dfbd04SJohannes Berg } 3514a6dfbd04SJohannes Berg 3515199d895fSJohannes Berg if (api_ver >= 2) { 351645c458b4SSara Sharon u.cmd.transmit_seq_cnt = cpu_to_le64(pn); 351745c458b4SSara Sharon size = sizeof(u.cmd); 351845c458b4SSara Sharon } else { 351945c458b4SSara Sharon size = sizeof(u.cmd_v1); 352045c458b4SSara Sharon } 3521e705c121SKalle Valo 3522e705c121SKalle Valo status = ADD_STA_SUCCESS; 3523e705c121SKalle Valo if (cmd_flags & CMD_ASYNC) 352445c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA_KEY, CMD_ASYNC, size, 352545c458b4SSara Sharon &u.cmd); 3526e705c121SKalle Valo else 352745c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, 352845c458b4SSara Sharon &u.cmd, &status); 3529e705c121SKalle Valo 3530e705c121SKalle Valo switch (status) { 3531e705c121SKalle Valo case ADD_STA_SUCCESS: 3532e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "MODIFY_STA: set dynamic key passed\n"); 3533e705c121SKalle Valo break; 3534e705c121SKalle Valo default: 3535e705c121SKalle Valo ret = -EIO; 3536e705c121SKalle Valo IWL_ERR(mvm, "MODIFY_STA: set dynamic key failed\n"); 3537e705c121SKalle Valo break; 3538e705c121SKalle Valo } 3539e705c121SKalle Valo 3540e705c121SKalle Valo return ret; 3541e705c121SKalle Valo } 3542e705c121SKalle Valo 3543e705c121SKalle Valo static int iwl_mvm_send_sta_igtk(struct iwl_mvm *mvm, 3544e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3545e705c121SKalle Valo u8 sta_id, bool remove_key) 3546e705c121SKalle Valo { 3547e705c121SKalle Valo struct iwl_mvm_mgmt_mcast_key_cmd igtk_cmd = {}; 3548e705c121SKalle Valo 3549e705c121SKalle Valo /* verify the key details match the required command's expectations */ 35508e160ab8SAyala Beker if (WARN_ON((keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) || 3551b1fdc250SJohannes Berg (keyconf->keyidx != 4 && keyconf->keyidx != 5 && 3552b1fdc250SJohannes Berg keyconf->keyidx != 6 && keyconf->keyidx != 7) || 35538e160ab8SAyala Beker (keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC && 35548e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_128 && 35558e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_256))) 35568e160ab8SAyala Beker return -EINVAL; 35578e160ab8SAyala Beker 35588e160ab8SAyala Beker if (WARN_ON(!iwl_mvm_has_new_rx_api(mvm) && 35598e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC)) 3560e705c121SKalle Valo return -EINVAL; 3561e705c121SKalle Valo 3562e705c121SKalle Valo igtk_cmd.key_id = cpu_to_le32(keyconf->keyidx); 3563e705c121SKalle Valo igtk_cmd.sta_id = cpu_to_le32(sta_id); 3564e705c121SKalle Valo 3565e705c121SKalle Valo if (remove_key) { 3566197288d5SLuca Coelho /* This is a valid situation for IGTK */ 3567197288d5SLuca Coelho if (sta_id == IWL_MVM_INVALID_STA) 3568197288d5SLuca Coelho return 0; 3569197288d5SLuca Coelho 3570e705c121SKalle Valo igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_NOT_VALID); 3571e705c121SKalle Valo } else { 3572e705c121SKalle Valo struct ieee80211_key_seq seq; 3573e705c121SKalle Valo const u8 *pn; 3574e705c121SKalle Valo 3575aa950524SAyala Beker switch (keyconf->cipher) { 3576aa950524SAyala Beker case WLAN_CIPHER_SUITE_AES_CMAC: 3577aa950524SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_CCM); 3578aa950524SAyala Beker break; 35798e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_128: 35808e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_256: 35818e160ab8SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_GCMP); 35828e160ab8SAyala Beker break; 3583aa950524SAyala Beker default: 3584aa950524SAyala Beker return -EINVAL; 3585aa950524SAyala Beker } 3586aa950524SAyala Beker 35878e160ab8SAyala Beker memcpy(igtk_cmd.igtk, keyconf->key, keyconf->keylen); 35888e160ab8SAyala Beker if (keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 35898e160ab8SAyala Beker igtk_cmd.ctrl_flags |= 35908e160ab8SAyala Beker cpu_to_le32(STA_KEY_FLG_KEY_32BYTES); 3591e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3592e705c121SKalle Valo pn = seq.aes_cmac.pn; 3593e705c121SKalle Valo igtk_cmd.receive_seq_cnt = cpu_to_le64(((u64) pn[5] << 0) | 3594e705c121SKalle Valo ((u64) pn[4] << 8) | 3595e705c121SKalle Valo ((u64) pn[3] << 16) | 3596e705c121SKalle Valo ((u64) pn[2] << 24) | 3597e705c121SKalle Valo ((u64) pn[1] << 32) | 3598e705c121SKalle Valo ((u64) pn[0] << 40)); 3599e705c121SKalle Valo } 3600e705c121SKalle Valo 3601b1fdc250SJohannes Berg IWL_DEBUG_INFO(mvm, "%s %sIGTK (%d) for sta %u\n", 3602e705c121SKalle Valo remove_key ? "removing" : "installing", 3603b1fdc250SJohannes Berg keyconf->keyidx >= 6 ? "B" : "", 3604b1fdc250SJohannes Berg keyconf->keyidx, igtk_cmd.sta_id); 3605e705c121SKalle Valo 36068e160ab8SAyala Beker if (!iwl_mvm_has_new_rx_api(mvm)) { 36078e160ab8SAyala Beker struct iwl_mvm_mgmt_mcast_key_cmd_v1 igtk_cmd_v1 = { 36088e160ab8SAyala Beker .ctrl_flags = igtk_cmd.ctrl_flags, 36098e160ab8SAyala Beker .key_id = igtk_cmd.key_id, 36108e160ab8SAyala Beker .sta_id = igtk_cmd.sta_id, 36118e160ab8SAyala Beker .receive_seq_cnt = igtk_cmd.receive_seq_cnt 36128e160ab8SAyala Beker }; 36138e160ab8SAyala Beker 36148e160ab8SAyala Beker memcpy(igtk_cmd_v1.igtk, igtk_cmd.igtk, 36158e160ab8SAyala Beker ARRAY_SIZE(igtk_cmd_v1.igtk)); 36168e160ab8SAyala Beker return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 36178e160ab8SAyala Beker sizeof(igtk_cmd_v1), &igtk_cmd_v1); 36188e160ab8SAyala Beker } 3619e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 3620e705c121SKalle Valo sizeof(igtk_cmd), &igtk_cmd); 3621e705c121SKalle Valo } 3622e705c121SKalle Valo 3623e705c121SKalle Valo 3624e705c121SKalle Valo static inline u8 *iwl_mvm_get_mac_addr(struct iwl_mvm *mvm, 3625e705c121SKalle Valo struct ieee80211_vif *vif, 3626e705c121SKalle Valo struct ieee80211_sta *sta) 3627e705c121SKalle Valo { 3628e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3629e705c121SKalle Valo 3630e705c121SKalle Valo if (sta) 3631e705c121SKalle Valo return sta->addr; 3632e705c121SKalle Valo 3633e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 36340ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 3635e705c121SKalle Valo u8 sta_id = mvmvif->ap_sta_id; 3636e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 3637e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3638e705c121SKalle Valo return sta->addr; 3639e705c121SKalle Valo } 3640e705c121SKalle Valo 3641e705c121SKalle Valo 3642e705c121SKalle Valo return NULL; 3643e705c121SKalle Valo } 3644e705c121SKalle Valo 3645e705c121SKalle Valo static int __iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3646e705c121SKalle Valo struct ieee80211_vif *vif, 3647e705c121SKalle Valo struct ieee80211_sta *sta, 3648e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 36494615fd15SEmmanuel Grumbach u8 key_offset, 3650e705c121SKalle Valo bool mcast) 3651e705c121SKalle Valo { 3652e705c121SKalle Valo const u8 *addr; 3653e705c121SKalle Valo struct ieee80211_key_seq seq; 3654e705c121SKalle Valo u16 p1k[5]; 365585aeb58cSDavid Spinadel u32 sta_id; 36564883145aSEmmanuel Grumbach bool mfp = false; 365785aeb58cSDavid Spinadel 365885aeb58cSDavid Spinadel if (sta) { 365985aeb58cSDavid Spinadel struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 366085aeb58cSDavid Spinadel 366185aeb58cSDavid Spinadel sta_id = mvm_sta->sta_id; 36624883145aSEmmanuel Grumbach mfp = sta->mfp; 366385aeb58cSDavid Spinadel } else if (vif->type == NL80211_IFTYPE_AP && 366485aeb58cSDavid Spinadel !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { 366585aeb58cSDavid Spinadel struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 366685aeb58cSDavid Spinadel 366785aeb58cSDavid Spinadel sta_id = mvmvif->mcast_sta.sta_id; 366885aeb58cSDavid Spinadel } else { 366985aeb58cSDavid Spinadel IWL_ERR(mvm, "Failed to find station id\n"); 367085aeb58cSDavid Spinadel return -EINVAL; 367185aeb58cSDavid Spinadel } 3672e705c121SKalle Valo 367395a62c33SJohannes Berg if (keyconf->cipher == WLAN_CIPHER_SUITE_TKIP) { 3674e705c121SKalle Valo addr = iwl_mvm_get_mac_addr(mvm, vif, sta); 3675e705c121SKalle Valo /* get phase 1 key from mac80211 */ 3676e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3677e705c121SKalle Valo ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k); 367895a62c33SJohannes Berg 367995a62c33SJohannes Berg return iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 36804883145aSEmmanuel Grumbach seq.tkip.iv32, p1k, 0, key_offset, 36814883145aSEmmanuel Grumbach mfp); 3682e705c121SKalle Valo } 3683e705c121SKalle Valo 368495a62c33SJohannes Berg return iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 368595a62c33SJohannes Berg 0, NULL, 0, key_offset, mfp); 3686e705c121SKalle Valo } 3687e705c121SKalle Valo 3688e705c121SKalle Valo int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3689e705c121SKalle Valo struct ieee80211_vif *vif, 3690e705c121SKalle Valo struct ieee80211_sta *sta, 3691e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 36924615fd15SEmmanuel Grumbach u8 key_offset) 3693e705c121SKalle Valo { 3694e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 36955f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 369685aeb58cSDavid Spinadel u8 sta_id = IWL_MVM_INVALID_STA; 3697e705c121SKalle Valo int ret; 3698e705c121SKalle Valo static const u8 __maybe_unused zero_addr[ETH_ALEN] = {0}; 3699e705c121SKalle Valo 3700e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3701e705c121SKalle Valo 370285aeb58cSDavid Spinadel if (vif->type != NL80211_IFTYPE_AP || 370385aeb58cSDavid Spinadel keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) { 3704e705c121SKalle Valo /* Get the station id from the mvm local station table */ 37055f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 37065f7a1847SJohannes Berg if (!mvm_sta) { 37075f7a1847SJohannes Berg IWL_ERR(mvm, "Failed to find station\n"); 3708e705c121SKalle Valo return -EINVAL; 3709e705c121SKalle Valo } 37105f7a1847SJohannes Berg sta_id = mvm_sta->sta_id; 3711e705c121SKalle Valo 3712e705c121SKalle Valo /* 3713e705c121SKalle Valo * It is possible that the 'sta' parameter is NULL, and thus 371485aeb58cSDavid Spinadel * there is a need to retrieve the sta from the local station 371585aeb58cSDavid Spinadel * table. 3716e705c121SKalle Valo */ 3717e705c121SKalle Valo if (!sta) { 371885aeb58cSDavid Spinadel sta = rcu_dereference_protected( 371985aeb58cSDavid Spinadel mvm->fw_id_to_mac_id[sta_id], 3720e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3721e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) { 3722e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 3723e705c121SKalle Valo return -EINVAL; 3724e705c121SKalle Valo } 3725e705c121SKalle Valo } 3726e705c121SKalle Valo 3727e705c121SKalle Valo if (WARN_ON_ONCE(iwl_mvm_sta_from_mac80211(sta)->vif != vif)) 3728e705c121SKalle Valo return -EINVAL; 3729e829b17cSBeni Lev } else { 3730e829b17cSBeni Lev struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3731e829b17cSBeni Lev 3732e829b17cSBeni Lev sta_id = mvmvif->mcast_sta.sta_id; 3733e829b17cSBeni Lev } 3734e829b17cSBeni Lev 3735e829b17cSBeni Lev if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3736e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3737e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) { 3738e829b17cSBeni Lev ret = iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, false); 3739e829b17cSBeni Lev goto end; 374085aeb58cSDavid Spinadel } 3741e705c121SKalle Valo 37424615fd15SEmmanuel Grumbach /* If the key_offset is not pre-assigned, we need to find a 37434615fd15SEmmanuel Grumbach * new offset to use. In normal cases, the offset is not 37444615fd15SEmmanuel Grumbach * pre-assigned, but during HW_RESTART we want to reuse the 37454615fd15SEmmanuel Grumbach * same indices, so we pass them when this function is called. 37464615fd15SEmmanuel Grumbach * 37474615fd15SEmmanuel Grumbach * In D3 entry, we need to hardcoded the indices (because the 37484615fd15SEmmanuel Grumbach * firmware hardcodes the PTK offset to 0). In this case, we 37494615fd15SEmmanuel Grumbach * need to make sure we don't overwrite the hw_key_idx in the 37504615fd15SEmmanuel Grumbach * keyconf structure, because otherwise we cannot configure 37514615fd15SEmmanuel Grumbach * the original ones back when resuming. 3752e705c121SKalle Valo */ 37534615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) { 37544615fd15SEmmanuel Grumbach key_offset = iwl_mvm_set_fw_key_idx(mvm); 37554615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) 3756e705c121SKalle Valo return -ENOSPC; 37574615fd15SEmmanuel Grumbach keyconf->hw_key_idx = key_offset; 3758e705c121SKalle Valo } 3759e705c121SKalle Valo 37604615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, key_offset, mcast); 37619c3deeb5SLuca Coelho if (ret) 3762e705c121SKalle Valo goto end; 3763e705c121SKalle Valo 3764e705c121SKalle Valo /* 3765e705c121SKalle Valo * For WEP, the same key is used for multicast and unicast. Upload it 3766e705c121SKalle Valo * again, using the same key offset, and now pointing the other one 3767e705c121SKalle Valo * to the same key slot (offset). 3768e705c121SKalle Valo * If this fails, remove the original as well. 3769e705c121SKalle Valo */ 377085aeb58cSDavid Spinadel if ((keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 377185aeb58cSDavid Spinadel keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) && 377285aeb58cSDavid Spinadel sta) { 37734615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, 37744615fd15SEmmanuel Grumbach key_offset, !mcast); 3775e705c121SKalle Valo if (ret) { 3776e705c121SKalle Valo __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 37779c3deeb5SLuca Coelho goto end; 3778e705c121SKalle Valo } 3779e705c121SKalle Valo } 3780e705c121SKalle Valo 37819c3deeb5SLuca Coelho __set_bit(key_offset, mvm->fw_key_table); 37829c3deeb5SLuca Coelho 3783e705c121SKalle Valo end: 3784e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "key: cipher=%x len=%d idx=%d sta=%pM ret=%d\n", 3785e705c121SKalle Valo keyconf->cipher, keyconf->keylen, keyconf->keyidx, 3786e705c121SKalle Valo sta ? sta->addr : zero_addr, ret); 3787e705c121SKalle Valo return ret; 3788e705c121SKalle Valo } 3789e705c121SKalle Valo 3790e705c121SKalle Valo int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, 3791e705c121SKalle Valo struct ieee80211_vif *vif, 3792e705c121SKalle Valo struct ieee80211_sta *sta, 3793e705c121SKalle Valo struct ieee80211_key_conf *keyconf) 3794e705c121SKalle Valo { 3795e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 37965f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 37970ae98812SSara Sharon u8 sta_id = IWL_MVM_INVALID_STA; 3798e705c121SKalle Valo int ret, i; 3799e705c121SKalle Valo 3800e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3801e705c121SKalle Valo 38025f7a1847SJohannes Berg /* Get the station from the mvm local station table */ 38035f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 380471793b7dSLuca Coelho if (mvm_sta) 3805cd4d23c1SIlan Peer sta_id = mvm_sta->sta_id; 380685aeb58cSDavid Spinadel else if (!sta && vif->type == NL80211_IFTYPE_AP && mcast) 380785aeb58cSDavid Spinadel sta_id = iwl_mvm_vif_from_mac80211(vif)->mcast_sta.sta_id; 380885aeb58cSDavid Spinadel 3809e705c121SKalle Valo 3810e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "mvm remove dynamic key: idx=%d sta=%d\n", 3811e705c121SKalle Valo keyconf->keyidx, sta_id); 3812e705c121SKalle Valo 3813197288d5SLuca Coelho if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 38148e160ab8SAyala Beker keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3815197288d5SLuca Coelho keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 3816e705c121SKalle Valo return iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, true); 3817e705c121SKalle Valo 3818e705c121SKalle Valo if (!__test_and_clear_bit(keyconf->hw_key_idx, mvm->fw_key_table)) { 3819e705c121SKalle Valo IWL_ERR(mvm, "offset %d not used in fw key table.\n", 3820e705c121SKalle Valo keyconf->hw_key_idx); 3821e705c121SKalle Valo return -ENOENT; 3822e705c121SKalle Valo } 3823e705c121SKalle Valo 3824e705c121SKalle Valo /* track which key was deleted last */ 3825e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3826e705c121SKalle Valo if (mvm->fw_key_deleted[i] < U8_MAX) 3827e705c121SKalle Valo mvm->fw_key_deleted[i]++; 3828e705c121SKalle Valo } 3829e705c121SKalle Valo mvm->fw_key_deleted[keyconf->hw_key_idx] = 0; 3830e705c121SKalle Valo 383185aeb58cSDavid Spinadel if (sta && !mvm_sta) { 3832e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "station non-existent, early return.\n"); 3833e705c121SKalle Valo return 0; 3834e705c121SKalle Valo } 3835e705c121SKalle Valo 3836e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 3837e705c121SKalle Valo if (ret) 3838e705c121SKalle Valo return ret; 3839e705c121SKalle Valo 3840e705c121SKalle Valo /* delete WEP key twice to get rid of (now useless) offset */ 3841e705c121SKalle Valo if (keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 3842e705c121SKalle Valo keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) 3843e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, !mcast); 3844e705c121SKalle Valo 3845e705c121SKalle Valo return ret; 3846e705c121SKalle Valo } 3847e705c121SKalle Valo 3848e705c121SKalle Valo void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, 3849e705c121SKalle Valo struct ieee80211_vif *vif, 3850e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3851e705c121SKalle Valo struct ieee80211_sta *sta, u32 iv32, 3852e705c121SKalle Valo u16 *phase1key) 3853e705c121SKalle Valo { 3854e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3855e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 38564883145aSEmmanuel Grumbach bool mfp = sta ? sta->mfp : false; 3857e705c121SKalle Valo 3858e705c121SKalle Valo rcu_read_lock(); 3859e705c121SKalle Valo 38605f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 38615f7a1847SJohannes Berg if (WARN_ON_ONCE(!mvm_sta)) 386212f17211SEmmanuel Grumbach goto unlock; 386385aeb58cSDavid Spinadel iwl_mvm_send_sta_key(mvm, mvm_sta->sta_id, keyconf, mcast, 38644883145aSEmmanuel Grumbach iv32, phase1key, CMD_ASYNC, keyconf->hw_key_idx, 38654883145aSEmmanuel Grumbach mfp); 386612f17211SEmmanuel Grumbach 386712f17211SEmmanuel Grumbach unlock: 3868e705c121SKalle Valo rcu_read_unlock(); 3869e705c121SKalle Valo } 3870e705c121SKalle Valo 3871e705c121SKalle Valo void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, 3872e705c121SKalle Valo struct ieee80211_sta *sta) 3873e705c121SKalle Valo { 3874e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3875e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3876e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3877e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3878e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_PS), 3879e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3880e705c121SKalle Valo }; 3881e705c121SKalle Valo int ret; 3882e705c121SKalle Valo 3883854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3884854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3885e705c121SKalle Valo if (ret) 3886e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3887e705c121SKalle Valo } 3888e705c121SKalle Valo 3889e705c121SKalle Valo void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, 3890e705c121SKalle Valo struct ieee80211_sta *sta, 3891e705c121SKalle Valo enum ieee80211_frame_release_type reason, 3892e705c121SKalle Valo u16 cnt, u16 tids, bool more_data, 38939a3fcf91SSara Sharon bool single_sta_queue) 3894e705c121SKalle Valo { 3895e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3896e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3897e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3898e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3899e705c121SKalle Valo .modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT, 3900e705c121SKalle Valo .sleep_tx_count = cpu_to_le16(cnt), 3901e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3902e705c121SKalle Valo }; 3903e705c121SKalle Valo int tid, ret; 3904e705c121SKalle Valo unsigned long _tids = tids; 3905e705c121SKalle Valo 3906e705c121SKalle Valo /* convert TIDs to ACs - we don't support TSPEC so that's OK 3907e705c121SKalle Valo * Note that this field is reserved and unused by firmware not 3908e705c121SKalle Valo * supporting GO uAPSD, so it's safe to always do this. 3909e705c121SKalle Valo */ 3910e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) 3911e705c121SKalle Valo cmd.awake_acs |= BIT(tid_to_ucode_ac[tid]); 3912e705c121SKalle Valo 39139a3fcf91SSara Sharon /* If we're releasing frames from aggregation or dqa queues then check 39149a3fcf91SSara Sharon * if all the queues that we're releasing frames from, combined, have: 3915e705c121SKalle Valo * - more frames than the service period, in which case more_data 3916e705c121SKalle Valo * needs to be set 3917e705c121SKalle Valo * - fewer than 'cnt' frames, in which case we need to adjust the 3918e705c121SKalle Valo * firmware command (but do that unconditionally) 3919e705c121SKalle Valo */ 39209a3fcf91SSara Sharon if (single_sta_queue) { 3921e705c121SKalle Valo int remaining = cnt; 392236be0eb6SEmmanuel Grumbach int sleep_tx_count; 3923e705c121SKalle Valo 3924e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3925e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) { 3926e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 3927e705c121SKalle Valo u16 n_queued; 3928e705c121SKalle Valo 3929e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 3930e705c121SKalle Valo 3931dd32162dSLiad Kaufman n_queued = iwl_mvm_tid_queued(mvm, tid_data); 3932e705c121SKalle Valo if (n_queued > remaining) { 3933e705c121SKalle Valo more_data = true; 3934e705c121SKalle Valo remaining = 0; 3935e705c121SKalle Valo break; 3936e705c121SKalle Valo } 3937e705c121SKalle Valo remaining -= n_queued; 3938e705c121SKalle Valo } 393936be0eb6SEmmanuel Grumbach sleep_tx_count = cnt - remaining; 394036be0eb6SEmmanuel Grumbach if (reason == IEEE80211_FRAME_RELEASE_UAPSD) 394136be0eb6SEmmanuel Grumbach mvmsta->sleep_tx_count = sleep_tx_count; 3942e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3943e705c121SKalle Valo 394436be0eb6SEmmanuel Grumbach cmd.sleep_tx_count = cpu_to_le16(sleep_tx_count); 3945e705c121SKalle Valo if (WARN_ON(cnt - remaining == 0)) { 3946e705c121SKalle Valo ieee80211_sta_eosp(sta); 3947e705c121SKalle Valo return; 3948e705c121SKalle Valo } 3949e705c121SKalle Valo } 3950e705c121SKalle Valo 3951e705c121SKalle Valo /* Note: this is ignored by firmware not supporting GO uAPSD */ 3952e705c121SKalle Valo if (more_data) 3953ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_MOREDATA; 3954e705c121SKalle Valo 3955e705c121SKalle Valo if (reason == IEEE80211_FRAME_RELEASE_PSPOLL) { 3956e705c121SKalle Valo mvmsta->next_status_eosp = true; 3957ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_PS_POLL; 3958e705c121SKalle Valo } else { 3959ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_UAPSD; 3960e705c121SKalle Valo } 3961e705c121SKalle Valo 3962156f92f2SEmmanuel Grumbach /* block the Tx queues until the FW updated the sleep Tx count */ 3963156f92f2SEmmanuel Grumbach iwl_trans_block_txq_ptrs(mvm->trans, true); 3964156f92f2SEmmanuel Grumbach 3965156f92f2SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 3966156f92f2SEmmanuel Grumbach CMD_ASYNC | CMD_WANT_ASYNC_CALLBACK, 3967854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3968e705c121SKalle Valo if (ret) 3969e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3970e705c121SKalle Valo } 3971e705c121SKalle Valo 3972e705c121SKalle Valo void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm, 3973e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 3974e705c121SKalle Valo { 3975e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 3976e705c121SKalle Valo struct iwl_mvm_eosp_notification *notif = (void *)pkt->data; 3977e705c121SKalle Valo struct ieee80211_sta *sta; 3978e705c121SKalle Valo u32 sta_id = le32_to_cpu(notif->sta_id); 3979e705c121SKalle Valo 3980be9ae34eSNathan Errera if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 3981e705c121SKalle Valo return; 3982e705c121SKalle Valo 3983e705c121SKalle Valo rcu_read_lock(); 3984e705c121SKalle Valo sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 3985e705c121SKalle Valo if (!IS_ERR_OR_NULL(sta)) 3986e705c121SKalle Valo ieee80211_sta_eosp(sta); 3987e705c121SKalle Valo rcu_read_unlock(); 3988e705c121SKalle Valo } 3989e705c121SKalle Valo 3990e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm, 3991e705c121SKalle Valo struct iwl_mvm_sta *mvmsta, bool disable) 3992e705c121SKalle Valo { 3993e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3994e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3995e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3996e705c121SKalle Valo .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 3997e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 3998e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3999e705c121SKalle Valo }; 4000e705c121SKalle Valo int ret; 4001e705c121SKalle Valo 4002854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 4003854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 4004e705c121SKalle Valo if (ret) 4005e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 4006e705c121SKalle Valo } 4007e705c121SKalle Valo 4008e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm, 4009e705c121SKalle Valo struct ieee80211_sta *sta, 4010e705c121SKalle Valo bool disable) 4011e705c121SKalle Valo { 4012e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4013e705c121SKalle Valo 4014e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 4015e705c121SKalle Valo 4016e705c121SKalle Valo if (mvm_sta->disable_tx == disable) { 4017e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 4018e705c121SKalle Valo return; 4019e705c121SKalle Valo } 4020e705c121SKalle Valo 4021e705c121SKalle Valo mvm_sta->disable_tx = disable; 4022e705c121SKalle Valo 4023b1c6cec0SNaftali Goldstein /* 4024b1c6cec0SNaftali Goldstein * If sta PS state is handled by mac80211, tell it to start/stop 4025b1c6cec0SNaftali Goldstein * queuing tx for this station. 4026b1c6cec0SNaftali Goldstein */ 4027b1c6cec0SNaftali Goldstein if (!ieee80211_hw_check(mvm->hw, AP_LINK_PS)) 4028e705c121SKalle Valo ieee80211_sta_block_awake(mvm->hw, sta, disable); 4029e705c121SKalle Valo 4030e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvm_sta, disable); 4031e705c121SKalle Valo 4032e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 4033e705c121SKalle Valo } 4034e705c121SKalle Valo 4035ced19f26SSara Sharon static void iwl_mvm_int_sta_modify_disable_tx(struct iwl_mvm *mvm, 4036ced19f26SSara Sharon struct iwl_mvm_vif *mvmvif, 4037ced19f26SSara Sharon struct iwl_mvm_int_sta *sta, 4038ced19f26SSara Sharon bool disable) 4039ced19f26SSara Sharon { 4040ced19f26SSara Sharon u32 id = FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color); 4041ced19f26SSara Sharon struct iwl_mvm_add_sta_cmd cmd = { 4042ced19f26SSara Sharon .add_modify = STA_MODE_MODIFY, 4043ced19f26SSara Sharon .sta_id = sta->sta_id, 4044ced19f26SSara Sharon .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 4045ced19f26SSara Sharon .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 4046ced19f26SSara Sharon .mac_id_n_color = cpu_to_le32(id), 4047ced19f26SSara Sharon }; 4048ced19f26SSara Sharon int ret; 4049ced19f26SSara Sharon 4050e5d153ecSEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 4051ced19f26SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 4052ced19f26SSara Sharon if (ret) 4053ced19f26SSara Sharon IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 4054ced19f26SSara Sharon } 4055ced19f26SSara Sharon 4056e705c121SKalle Valo void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm, 4057e705c121SKalle Valo struct iwl_mvm_vif *mvmvif, 4058e705c121SKalle Valo bool disable) 4059e705c121SKalle Valo { 4060e705c121SKalle Valo struct ieee80211_sta *sta; 4061e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 4062e705c121SKalle Valo int i; 4063e705c121SKalle Valo 4064e5d153ecSEmmanuel Grumbach rcu_read_lock(); 4065e705c121SKalle Valo 4066e705c121SKalle Valo /* Block/unblock all the stations of the given mvmvif */ 4067be9ae34eSNathan Errera for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 4068e5d153ecSEmmanuel Grumbach sta = rcu_dereference(mvm->fw_id_to_mac_id[i]); 4069e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) 4070e705c121SKalle Valo continue; 4071e705c121SKalle Valo 4072e705c121SKalle Valo mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4073e705c121SKalle Valo if (mvm_sta->mac_id_n_color != 4074e705c121SKalle Valo FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)) 4075e705c121SKalle Valo continue; 4076e705c121SKalle Valo 4077e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx_ap(mvm, sta, disable); 4078e705c121SKalle Valo } 4079ced19f26SSara Sharon 4080e5d153ecSEmmanuel Grumbach rcu_read_unlock(); 4081e5d153ecSEmmanuel Grumbach 4082ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 4083ced19f26SSara Sharon return; 4084ced19f26SSara Sharon 4085ced19f26SSara Sharon /* Need to block/unblock also multicast station */ 4086ced19f26SSara Sharon if (mvmvif->mcast_sta.sta_id != IWL_MVM_INVALID_STA) 4087ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 4088ced19f26SSara Sharon &mvmvif->mcast_sta, disable); 4089ced19f26SSara Sharon 4090ced19f26SSara Sharon /* 4091ced19f26SSara Sharon * Only unblock the broadcast station (FW blocks it for immediate 4092ced19f26SSara Sharon * quiet, not the driver) 4093ced19f26SSara Sharon */ 4094ced19f26SSara Sharon if (!disable && mvmvif->bcast_sta.sta_id != IWL_MVM_INVALID_STA) 4095ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 4096ced19f26SSara Sharon &mvmvif->bcast_sta, disable); 4097e705c121SKalle Valo } 4098e705c121SKalle Valo 4099e705c121SKalle Valo void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4100e705c121SKalle Valo { 4101e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4102e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 4103e705c121SKalle Valo 4104e705c121SKalle Valo rcu_read_lock(); 4105e705c121SKalle Valo 4106e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->ap_sta_id); 4107e705c121SKalle Valo 4108ad12b231SNathan Errera if (mvmsta) 4109e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true); 4110e705c121SKalle Valo 4111e705c121SKalle Valo rcu_read_unlock(); 4112e705c121SKalle Valo } 4113dd32162dSLiad Kaufman 4114dd32162dSLiad Kaufman u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data) 4115dd32162dSLiad Kaufman { 4116dd32162dSLiad Kaufman u16 sn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 4117dd32162dSLiad Kaufman 4118dd32162dSLiad Kaufman /* 41192f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 4120dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 4121dd32162dSLiad Kaufman */ 4122286ca8ebSLuca Coelho if (mvm->trans->trans_cfg->gen2) 4123dd32162dSLiad Kaufman sn &= 0xff; 4124dd32162dSLiad Kaufman 4125dd32162dSLiad Kaufman return ieee80211_sn_sub(sn, tid_data->next_reclaimed); 4126dd32162dSLiad Kaufman } 4127be82ecd3SAvraham Stern 4128be82ecd3SAvraham Stern int iwl_mvm_add_pasn_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 4129be82ecd3SAvraham Stern struct iwl_mvm_int_sta *sta, u8 *addr, u32 cipher, 4130be82ecd3SAvraham Stern u8 *key, u32 key_len) 4131be82ecd3SAvraham Stern { 4132be82ecd3SAvraham Stern int ret; 4133be82ecd3SAvraham Stern u16 queue; 4134be82ecd3SAvraham Stern struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4135be82ecd3SAvraham Stern struct ieee80211_key_conf *keyconf; 4136be82ecd3SAvraham Stern 4137be82ecd3SAvraham Stern ret = iwl_mvm_allocate_int_sta(mvm, sta, 0, 4138be82ecd3SAvraham Stern NL80211_IFTYPE_UNSPECIFIED, 4139be82ecd3SAvraham Stern IWL_STA_LINK); 4140be82ecd3SAvraham Stern if (ret) 4141be82ecd3SAvraham Stern return ret; 4142be82ecd3SAvraham Stern 4143be82ecd3SAvraham Stern ret = iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id, mvmvif->color, 4144be82ecd3SAvraham Stern addr, sta, &queue, 4145be82ecd3SAvraham Stern IWL_MVM_TX_FIFO_BE); 4146be82ecd3SAvraham Stern if (ret) 4147be82ecd3SAvraham Stern goto out; 4148be82ecd3SAvraham Stern 4149be82ecd3SAvraham Stern keyconf = kzalloc(sizeof(*keyconf) + key_len, GFP_KERNEL); 4150be82ecd3SAvraham Stern if (!keyconf) { 4151be82ecd3SAvraham Stern ret = -ENOBUFS; 4152be82ecd3SAvraham Stern goto out; 4153be82ecd3SAvraham Stern } 4154be82ecd3SAvraham Stern 4155be82ecd3SAvraham Stern keyconf->cipher = cipher; 4156be82ecd3SAvraham Stern memcpy(keyconf->key, key, key_len); 4157be82ecd3SAvraham Stern keyconf->keylen = key_len; 4158be82ecd3SAvraham Stern 4159be82ecd3SAvraham Stern ret = iwl_mvm_send_sta_key(mvm, sta->sta_id, keyconf, false, 4160be82ecd3SAvraham Stern 0, NULL, 0, 0, true); 4161be82ecd3SAvraham Stern kfree(keyconf); 4162be82ecd3SAvraham Stern return 0; 4163be82ecd3SAvraham Stern out: 4164be82ecd3SAvraham Stern iwl_mvm_dealloc_int_sta(mvm, sta); 4165be82ecd3SAvraham Stern return ret; 4166be82ecd3SAvraham Stern } 4167ad12b231SNathan Errera 4168ad12b231SNathan Errera void iwl_mvm_cancel_channel_switch(struct iwl_mvm *mvm, 4169ad12b231SNathan Errera struct ieee80211_vif *vif, 4170ad12b231SNathan Errera u32 mac_id) 4171ad12b231SNathan Errera { 4172ad12b231SNathan Errera struct iwl_cancel_channel_switch_cmd cancel_channel_switch_cmd = { 4173ad12b231SNathan Errera .mac_id = cpu_to_le32(mac_id), 4174ad12b231SNathan Errera }; 4175ad12b231SNathan Errera int ret; 4176ad12b231SNathan Errera 4177ad12b231SNathan Errera ret = iwl_mvm_send_cmd_pdu(mvm, 4178f0c86427SJohannes Berg WIDE_ID(MAC_CONF_GROUP, CANCEL_CHANNEL_SWITCH_CMD), 4179ad12b231SNathan Errera CMD_ASYNC, 4180ad12b231SNathan Errera sizeof(cancel_channel_switch_cmd), 4181ad12b231SNathan Errera &cancel_channel_switch_cmd); 4182ad12b231SNathan Errera if (ret) 4183ad12b231SNathan Errera IWL_ERR(mvm, "Failed to cancel the channel switch\n"); 4184ad12b231SNathan Errera } 4185