18e99ea8dSJohannes Berg // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 28e99ea8dSJohannes Berg /* 3*3538c809SLuca Coelho * Copyright (C) 2012-2015, 2018-2022 Intel Corporation 48e99ea8dSJohannes Berg * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 58e99ea8dSJohannes Berg * Copyright (C) 2016-2017 Intel Deutschland GmbH 68e99ea8dSJohannes Berg */ 7e705c121SKalle Valo #include <net/mac80211.h> 8e705c121SKalle Valo 9e705c121SKalle Valo #include "mvm.h" 10e705c121SKalle Valo #include "sta.h" 11e705c121SKalle Valo #include "rs.h" 12e705c121SKalle Valo 13854c5705SSara Sharon /* 14854c5705SSara Sharon * New version of ADD_STA_sta command added new fields at the end of the 15854c5705SSara Sharon * structure, so sending the size of the relevant API's structure is enough to 16854c5705SSara Sharon * support both API versions. 17854c5705SSara Sharon */ 18854c5705SSara Sharon static inline int iwl_mvm_add_sta_cmd_size(struct iwl_mvm *mvm) 19854c5705SSara Sharon { 20ced19f26SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) || 21ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 22ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd); 23ced19f26SSara Sharon else 24ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd_v7); 25854c5705SSara Sharon } 26854c5705SSara Sharon 27e705c121SKalle Valo static int iwl_mvm_find_free_sta_id(struct iwl_mvm *mvm, 28e705c121SKalle Valo enum nl80211_iftype iftype) 29e705c121SKalle Valo { 30e705c121SKalle Valo int sta_id; 31e705c121SKalle Valo u32 reserved_ids = 0; 32e705c121SKalle Valo 33be9ae34eSNathan Errera BUILD_BUG_ON(IWL_MVM_STATION_COUNT_MAX > 32); 34e705c121SKalle Valo WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)); 35e705c121SKalle Valo 36e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 37e705c121SKalle Valo 38e705c121SKalle Valo /* d0i3/d3 assumes the AP's sta_id (of sta vif) is 0. reserve it. */ 39e705c121SKalle Valo if (iftype != NL80211_IFTYPE_STATION) 40e705c121SKalle Valo reserved_ids = BIT(0); 41e705c121SKalle Valo 42e705c121SKalle Valo /* Don't take rcu_read_lock() since we are protected by mvm->mutex */ 43be9ae34eSNathan Errera for (sta_id = 0; sta_id < mvm->fw->ucode_capa.num_stations; sta_id++) { 44e705c121SKalle Valo if (BIT(sta_id) & reserved_ids) 45e705c121SKalle Valo continue; 46e705c121SKalle Valo 47e705c121SKalle Valo if (!rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 48e705c121SKalle Valo lockdep_is_held(&mvm->mutex))) 49e705c121SKalle Valo return sta_id; 50e705c121SKalle Valo } 510ae98812SSara Sharon return IWL_MVM_INVALID_STA; 52e705c121SKalle Valo } 53e705c121SKalle Valo 54e705c121SKalle Valo /* send station add/update command to firmware */ 55e705c121SKalle Valo int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 5624afba76SLiad Kaufman bool update, unsigned int flags) 57e705c121SKalle Valo { 58e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 59e705c121SKalle Valo struct iwl_mvm_add_sta_cmd add_sta_cmd = { 60e705c121SKalle Valo .sta_id = mvm_sta->sta_id, 61e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color), 62e705c121SKalle Valo .add_modify = update ? 1 : 0, 63e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_FAT_EN_MSK | 648addabf8SNaftali Goldstein STA_FLG_MIMO_EN_MSK | 658addabf8SNaftali Goldstein STA_FLG_RTS_MIMO_PROT), 66cf0cda19SLiad Kaufman .tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg), 67e705c121SKalle Valo }; 68e705c121SKalle Valo int ret; 69e705c121SKalle Valo u32 status; 70e705c121SKalle Valo u32 agg_size = 0, mpdu_dens = 0; 71e705c121SKalle Valo 72ced19f26SSara Sharon if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 73ced19f26SSara Sharon add_sta_cmd.station_type = mvm_sta->sta_type; 74ced19f26SSara Sharon 7524afba76SLiad Kaufman if (!update || (flags & STA_MODIFY_QUEUES)) { 76e705c121SKalle Valo memcpy(&add_sta_cmd.addr, sta->addr, ETH_ALEN); 7724afba76SLiad Kaufman 78bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) { 79bb49701bSSara Sharon add_sta_cmd.tfd_queue_msk = 80bb49701bSSara Sharon cpu_to_le32(mvm_sta->tfd_queue_msk); 81bb49701bSSara Sharon 8224afba76SLiad Kaufman if (flags & STA_MODIFY_QUEUES) 8324afba76SLiad Kaufman add_sta_cmd.modify_mask |= STA_MODIFY_QUEUES; 84bb49701bSSara Sharon } else { 85bb49701bSSara Sharon WARN_ON(flags & STA_MODIFY_QUEUES); 86bb49701bSSara Sharon } 87e705c121SKalle Valo } 88e705c121SKalle Valo 89e705c121SKalle Valo switch (sta->bandwidth) { 905dca295dSIlan Peer case IEEE80211_STA_RX_BW_320: 91e705c121SKalle Valo case IEEE80211_STA_RX_BW_160: 92e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_160MHZ); 935a2abdcaSGustavo A. R. Silva fallthrough; 94e705c121SKalle Valo case IEEE80211_STA_RX_BW_80: 95e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_80MHZ); 965a2abdcaSGustavo A. R. Silva fallthrough; 97e705c121SKalle Valo case IEEE80211_STA_RX_BW_40: 98e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_40MHZ); 995a2abdcaSGustavo A. R. Silva fallthrough; 100e705c121SKalle Valo case IEEE80211_STA_RX_BW_20: 101e705c121SKalle Valo if (sta->ht_cap.ht_supported) 102e705c121SKalle Valo add_sta_cmd.station_flags |= 103e705c121SKalle Valo cpu_to_le32(STA_FLG_FAT_EN_20MHZ); 104e705c121SKalle Valo break; 105e705c121SKalle Valo } 106e705c121SKalle Valo 107e705c121SKalle Valo switch (sta->rx_nss) { 108e705c121SKalle Valo case 1: 109e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 110e705c121SKalle Valo break; 111e705c121SKalle Valo case 2: 112e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO2); 113e705c121SKalle Valo break; 114e705c121SKalle Valo case 3 ... 8: 115e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO3); 116e705c121SKalle Valo break; 117e705c121SKalle Valo } 118e705c121SKalle Valo 119e705c121SKalle Valo switch (sta->smps_mode) { 120e705c121SKalle Valo case IEEE80211_SMPS_AUTOMATIC: 121e705c121SKalle Valo case IEEE80211_SMPS_NUM_MODES: 122e705c121SKalle Valo WARN_ON(1); 123e705c121SKalle Valo break; 124e705c121SKalle Valo case IEEE80211_SMPS_STATIC: 125e705c121SKalle Valo /* override NSS */ 126e705c121SKalle Valo add_sta_cmd.station_flags &= ~cpu_to_le32(STA_FLG_MIMO_EN_MSK); 127e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 128e705c121SKalle Valo break; 129e705c121SKalle Valo case IEEE80211_SMPS_DYNAMIC: 130e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_RTS_MIMO_PROT); 131e705c121SKalle Valo break; 132e705c121SKalle Valo case IEEE80211_SMPS_OFF: 133e705c121SKalle Valo /* nothing */ 134e705c121SKalle Valo break; 135e705c121SKalle Valo } 136e705c121SKalle Valo 137e705c121SKalle Valo if (sta->ht_cap.ht_supported) { 138e705c121SKalle Valo add_sta_cmd.station_flags_msk |= 139e705c121SKalle Valo cpu_to_le32(STA_FLG_MAX_AGG_SIZE_MSK | 140e705c121SKalle Valo STA_FLG_AGG_MPDU_DENS_MSK); 141e705c121SKalle Valo 142e705c121SKalle Valo mpdu_dens = sta->ht_cap.ampdu_density; 143e705c121SKalle Valo } 144e705c121SKalle Valo 145eae94cf8SLuca Coelho if (mvm_sta->vif->bss_conf.chandef.chan->band == NL80211_BAND_6GHZ) { 146eae94cf8SLuca Coelho add_sta_cmd.station_flags_msk |= 147eae94cf8SLuca Coelho cpu_to_le32(STA_FLG_MAX_AGG_SIZE_MSK | 148eae94cf8SLuca Coelho STA_FLG_AGG_MPDU_DENS_MSK); 149c8a2e7a2SMordechay Goodstein 150eae94cf8SLuca Coelho mpdu_dens = le16_get_bits(sta->he_6ghz_capa.capa, 151eae94cf8SLuca Coelho IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START); 152eae94cf8SLuca Coelho agg_size = le16_get_bits(sta->he_6ghz_capa.capa, 153eae94cf8SLuca Coelho IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP); 154eae94cf8SLuca Coelho } else 155e705c121SKalle Valo if (sta->vht_cap.vht_supported) { 156e705c121SKalle Valo agg_size = sta->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; 160e705c121SKalle Valo } else if (sta->ht_cap.ht_supported) { 161e705c121SKalle Valo agg_size = sta->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 */ 172c8a2e7a2SMordechay Goodstein if (sta->he_cap.has_he) 173c8a2e7a2SMordechay Goodstein agg_size += u8_get_bits(sta->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, 320c6ce1c74SJohannes Berg u16 *queueptr, u8 tid, u8 flags) 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 32999448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) { 33099448a8cSJohannes Berg iwl_trans_txq_free(mvm->trans, queue); 331c6ce1c74SJohannes Berg *queueptr = IWL_MVM_INVALID_QUEUE; 33299448a8cSJohannes Berg 33399448a8cSJohannes Berg return 0; 33499448a8cSJohannes Berg } 33599448a8cSJohannes Berg 336f3f240f9SJohannes Berg if (WARN_ON(mvm->queue_info[queue].tid_bitmap == 0)) 33799448a8cSJohannes Berg return 0; 33899448a8cSJohannes Berg 33999448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 34099448a8cSJohannes Berg 3411c14089eSJohannes Berg cmd.action = mvm->queue_info[queue].tid_bitmap ? 34299448a8cSJohannes Berg SCD_CFG_ENABLE_QUEUE : SCD_CFG_DISABLE_QUEUE; 34399448a8cSJohannes Berg if (cmd.action == SCD_CFG_DISABLE_QUEUE) 34499448a8cSJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_FREE; 34599448a8cSJohannes Berg 34699448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 347cfbc6c4cSSara Sharon "Disabling TXQ #%d tids=0x%x\n", 34899448a8cSJohannes Berg queue, 349cfbc6c4cSSara Sharon mvm->queue_info[queue].tid_bitmap); 35099448a8cSJohannes Berg 35199448a8cSJohannes Berg /* If the queue is still enabled - nothing left to do in this func */ 352f3f240f9SJohannes Berg if (cmd.action == SCD_CFG_ENABLE_QUEUE) 35399448a8cSJohannes Berg return 0; 35499448a8cSJohannes Berg 35599448a8cSJohannes Berg cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 35699448a8cSJohannes Berg cmd.tid = mvm->queue_info[queue].txq_tid; 35799448a8cSJohannes Berg 35899448a8cSJohannes Berg /* Make sure queue info is correct even though we overwrite it */ 359cfbc6c4cSSara Sharon WARN(mvm->queue_info[queue].tid_bitmap, 360cfbc6c4cSSara Sharon "TXQ #%d info out-of-sync - tids=0x%x\n", 361cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 36299448a8cSJohannes Berg 36399448a8cSJohannes Berg /* If we are here - the queue is freed and we can zero out these vals */ 36499448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap = 0; 365cfbc6c4cSSara Sharon 366cfbc6c4cSSara Sharon if (sta) { 367cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 368cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 369cfbc6c4cSSara Sharon 370cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 371cfbc6c4cSSara Sharon } 37299448a8cSJohannes Berg 37399448a8cSJohannes Berg /* Regardless if this is a reserved TXQ for a STA - mark it as false */ 37499448a8cSJohannes Berg mvm->queue_info[queue].reserved = false; 37599448a8cSJohannes Berg 37699448a8cSJohannes Berg iwl_trans_txq_disable(mvm->trans, queue, false); 37799448a8cSJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, flags, 37899448a8cSJohannes Berg sizeof(struct iwl_scd_txq_cfg_cmd), &cmd); 37999448a8cSJohannes Berg 38099448a8cSJohannes Berg if (ret) 38199448a8cSJohannes Berg IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n", 38299448a8cSJohannes Berg queue, ret); 38399448a8cSJohannes Berg return ret; 38499448a8cSJohannes Berg } 38599448a8cSJohannes Berg 38642db09c1SLiad Kaufman static int iwl_mvm_get_queue_agg_tids(struct iwl_mvm *mvm, int queue) 38742db09c1SLiad Kaufman { 38842db09c1SLiad Kaufman struct ieee80211_sta *sta; 38942db09c1SLiad Kaufman struct iwl_mvm_sta *mvmsta; 39042db09c1SLiad Kaufman unsigned long tid_bitmap; 39142db09c1SLiad Kaufman unsigned long agg_tids = 0; 392806911daSSharon Dvir u8 sta_id; 39342db09c1SLiad Kaufman int tid; 39442db09c1SLiad Kaufman 39542db09c1SLiad Kaufman lockdep_assert_held(&mvm->mutex); 39642db09c1SLiad Kaufman 397bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 398bb49701bSSara Sharon return -EINVAL; 399bb49701bSSara Sharon 40042db09c1SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 40142db09c1SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 40242db09c1SLiad Kaufman 40342db09c1SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 40442db09c1SLiad Kaufman lockdep_is_held(&mvm->mutex)); 40542db09c1SLiad Kaufman 40642db09c1SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 40742db09c1SLiad Kaufman return -EINVAL; 40842db09c1SLiad Kaufman 40942db09c1SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 41042db09c1SLiad Kaufman 41142db09c1SLiad Kaufman spin_lock_bh(&mvmsta->lock); 41242db09c1SLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 41342db09c1SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 41442db09c1SLiad Kaufman agg_tids |= BIT(tid); 41542db09c1SLiad Kaufman } 41642db09c1SLiad Kaufman spin_unlock_bh(&mvmsta->lock); 41742db09c1SLiad Kaufman 41842db09c1SLiad Kaufman return agg_tids; 41942db09c1SLiad Kaufman } 42042db09c1SLiad Kaufman 4219794c64fSLiad Kaufman /* 4229794c64fSLiad Kaufman * Remove a queue from a station's resources. 4239794c64fSLiad Kaufman * Note that this only marks as free. It DOESN'T delete a BA agreement, and 4249794c64fSLiad Kaufman * doesn't disable the queue 4259794c64fSLiad Kaufman */ 4269794c64fSLiad Kaufman static int iwl_mvm_remove_sta_queue_marking(struct iwl_mvm *mvm, int queue) 4279794c64fSLiad Kaufman { 4289794c64fSLiad Kaufman struct ieee80211_sta *sta; 4299794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 4309794c64fSLiad Kaufman unsigned long tid_bitmap; 4319794c64fSLiad Kaufman unsigned long disable_agg_tids = 0; 4329794c64fSLiad Kaufman u8 sta_id; 4339794c64fSLiad Kaufman int tid; 4349794c64fSLiad Kaufman 4359794c64fSLiad Kaufman lockdep_assert_held(&mvm->mutex); 4369794c64fSLiad Kaufman 437bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 438bb49701bSSara Sharon return -EINVAL; 439bb49701bSSara Sharon 4409794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 4419794c64fSLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 4429794c64fSLiad Kaufman 4439794c64fSLiad Kaufman rcu_read_lock(); 4449794c64fSLiad Kaufman 4459794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 4469794c64fSLiad Kaufman 4479794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 4489794c64fSLiad Kaufman rcu_read_unlock(); 4499794c64fSLiad Kaufman return 0; 4509794c64fSLiad Kaufman } 4519794c64fSLiad Kaufman 4529794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 4539794c64fSLiad Kaufman 4549794c64fSLiad Kaufman spin_lock_bh(&mvmsta->lock); 45542db09c1SLiad Kaufman /* Unmap MAC queues and TIDs from this queue */ 4569794c64fSLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 457cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 458cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 459cfbc6c4cSSara Sharon 4609794c64fSLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 4619794c64fSLiad Kaufman disable_agg_tids |= BIT(tid); 4626862fceeSSara Sharon mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 463cfbc6c4cSSara Sharon 464cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 4659794c64fSLiad Kaufman } 4669794c64fSLiad Kaufman 46742db09c1SLiad Kaufman mvmsta->tfd_queue_msk &= ~BIT(queue); /* Don't use this queue anymore */ 4689794c64fSLiad Kaufman spin_unlock_bh(&mvmsta->lock); 4699794c64fSLiad Kaufman 4709794c64fSLiad Kaufman rcu_read_unlock(); 4719794c64fSLiad Kaufman 47206bc6f6eSJohannes Berg /* 47306bc6f6eSJohannes Berg * The TX path may have been using this TXQ_ID from the tid_data, 47406bc6f6eSJohannes Berg * so make sure it's no longer running so that we can safely reuse 47506bc6f6eSJohannes Berg * this TXQ later. We've set all the TIDs to IWL_MVM_INVALID_QUEUE 47606bc6f6eSJohannes Berg * above, but nothing guarantees we've stopped using them. Thus, 47706bc6f6eSJohannes Berg * without this, we could get to iwl_mvm_disable_txq() and remove 47806bc6f6eSJohannes Berg * the queue while still sending frames to it. 47906bc6f6eSJohannes Berg */ 48006bc6f6eSJohannes Berg synchronize_net(); 48106bc6f6eSJohannes Berg 4829794c64fSLiad Kaufman return disable_agg_tids; 4839794c64fSLiad Kaufman } 4849794c64fSLiad Kaufman 48501796ff2SSara Sharon static int iwl_mvm_free_inactive_queue(struct iwl_mvm *mvm, int queue, 486cfbc6c4cSSara Sharon struct ieee80211_sta *old_sta, 487724fe771SJohannes Berg u8 new_sta_id) 48801796ff2SSara Sharon { 48901796ff2SSara Sharon struct iwl_mvm_sta *mvmsta; 490cfbc6c4cSSara Sharon u8 sta_id, tid; 49101796ff2SSara Sharon unsigned long disable_agg_tids = 0; 492724fe771SJohannes Berg bool same_sta; 493c6ce1c74SJohannes Berg u16 queue_tmp = queue; 49401796ff2SSara Sharon int ret; 49501796ff2SSara Sharon 49601796ff2SSara Sharon lockdep_assert_held(&mvm->mutex); 49701796ff2SSara Sharon 498bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 499bb49701bSSara Sharon return -EINVAL; 500bb49701bSSara Sharon 50101796ff2SSara Sharon sta_id = mvm->queue_info[queue].ra_sta_id; 50201796ff2SSara Sharon tid = mvm->queue_info[queue].txq_tid; 50301796ff2SSara Sharon 504724fe771SJohannes Berg same_sta = sta_id == new_sta_id; 505724fe771SJohannes Berg 50601796ff2SSara Sharon mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 507e3df1e4bSSharon Dvir if (WARN_ON(!mvmsta)) 508e3df1e4bSSharon Dvir return -EINVAL; 50901796ff2SSara Sharon 51001796ff2SSara Sharon disable_agg_tids = iwl_mvm_remove_sta_queue_marking(mvm, queue); 51101796ff2SSara Sharon /* Disable the queue */ 51201796ff2SSara Sharon if (disable_agg_tids) 51301796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 51401796ff2SSara Sharon disable_agg_tids, false); 51501796ff2SSara Sharon 516c6ce1c74SJohannes Berg ret = iwl_mvm_disable_txq(mvm, old_sta, &queue_tmp, tid, 0); 51701796ff2SSara Sharon if (ret) { 51801796ff2SSara Sharon IWL_ERR(mvm, 51901796ff2SSara Sharon "Failed to free inactive queue %d (ret=%d)\n", 52001796ff2SSara Sharon queue, ret); 52101796ff2SSara Sharon 52201796ff2SSara Sharon return ret; 52301796ff2SSara Sharon } 52401796ff2SSara Sharon 52501796ff2SSara Sharon /* If TXQ is allocated to another STA, update removal in FW */ 52601796ff2SSara Sharon if (!same_sta) 52701796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 0, true); 52801796ff2SSara Sharon 52901796ff2SSara Sharon return 0; 53001796ff2SSara Sharon } 53101796ff2SSara Sharon 53242db09c1SLiad Kaufman static int iwl_mvm_get_shared_queue(struct iwl_mvm *mvm, 53342db09c1SLiad Kaufman unsigned long tfd_queue_mask, u8 ac) 53442db09c1SLiad Kaufman { 53542db09c1SLiad Kaufman int queue = 0; 53642db09c1SLiad Kaufman u8 ac_to_queue[IEEE80211_NUM_ACS]; 53742db09c1SLiad Kaufman int i; 53842db09c1SLiad Kaufman 53990d2d94cSJohannes Berg /* 54090d2d94cSJohannes Berg * This protects us against grabbing a queue that's being reconfigured 54190d2d94cSJohannes Berg * by the inactivity checker. 54290d2d94cSJohannes Berg */ 54390d2d94cSJohannes Berg lockdep_assert_held(&mvm->mutex); 54490d2d94cSJohannes Berg 545bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 546bb49701bSSara Sharon return -EINVAL; 54742db09c1SLiad Kaufman 54842db09c1SLiad Kaufman memset(&ac_to_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(ac_to_queue)); 54942db09c1SLiad Kaufman 55042db09c1SLiad Kaufman /* See what ACs the existing queues for this STA have */ 55142db09c1SLiad Kaufman for_each_set_bit(i, &tfd_queue_mask, IWL_MVM_DQA_MAX_DATA_QUEUE) { 55242db09c1SLiad Kaufman /* Only DATA queues can be shared */ 55342db09c1SLiad Kaufman if (i < IWL_MVM_DQA_MIN_DATA_QUEUE && 55442db09c1SLiad Kaufman i != IWL_MVM_DQA_BSS_CLIENT_QUEUE) 55542db09c1SLiad Kaufman continue; 55642db09c1SLiad Kaufman 55742db09c1SLiad Kaufman ac_to_queue[mvm->queue_info[i].mac80211_ac] = i; 55842db09c1SLiad Kaufman } 55942db09c1SLiad Kaufman 56042db09c1SLiad Kaufman /* 56142db09c1SLiad Kaufman * The queue to share is chosen only from DATA queues as follows (in 56242db09c1SLiad Kaufman * descending priority): 56342db09c1SLiad Kaufman * 1. An AC_BE queue 56442db09c1SLiad Kaufman * 2. Same AC queue 56542db09c1SLiad Kaufman * 3. Highest AC queue that is lower than new AC 56642db09c1SLiad Kaufman * 4. Any existing AC (there always is at least 1 DATA queue) 56742db09c1SLiad Kaufman */ 56842db09c1SLiad Kaufman 56942db09c1SLiad Kaufman /* Priority 1: An AC_BE queue */ 57042db09c1SLiad Kaufman if (ac_to_queue[IEEE80211_AC_BE] != IEEE80211_INVAL_HW_QUEUE) 57142db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BE]; 57242db09c1SLiad Kaufman /* Priority 2: Same AC queue */ 57342db09c1SLiad Kaufman else if (ac_to_queue[ac] != IEEE80211_INVAL_HW_QUEUE) 57442db09c1SLiad Kaufman queue = ac_to_queue[ac]; 57542db09c1SLiad Kaufman /* Priority 3a: If new AC is VO and VI exists - use VI */ 57642db09c1SLiad Kaufman else if (ac == IEEE80211_AC_VO && 57742db09c1SLiad Kaufman ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 57842db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 57942db09c1SLiad Kaufman /* Priority 3b: No BE so only AC less than the new one is BK */ 58042db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_BK] != IEEE80211_INVAL_HW_QUEUE) 58142db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BK]; 58242db09c1SLiad Kaufman /* Priority 4a: No BE nor BK - use VI if exists */ 58342db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 58442db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 58542db09c1SLiad Kaufman /* Priority 4b: No BE, BK nor VI - use VO if exists */ 58642db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VO] != IEEE80211_INVAL_HW_QUEUE) 58742db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VO]; 58842db09c1SLiad Kaufman 58942db09c1SLiad Kaufman /* Make sure queue found (or not) is legal */ 5909f9af3d7SLiad Kaufman if (!iwl_mvm_is_dqa_data_queue(mvm, queue) && 5919f9af3d7SLiad Kaufman !iwl_mvm_is_dqa_mgmt_queue(mvm, queue) && 5929f9af3d7SLiad Kaufman (queue != IWL_MVM_DQA_BSS_CLIENT_QUEUE)) { 59342db09c1SLiad Kaufman IWL_ERR(mvm, "No DATA queues available to share\n"); 5949f9af3d7SLiad Kaufman return -ENOSPC; 5959f9af3d7SLiad Kaufman } 5969f9af3d7SLiad Kaufman 59742db09c1SLiad Kaufman return queue; 59842db09c1SLiad Kaufman } 59942db09c1SLiad Kaufman 60058f2cc57SLiad Kaufman /* 6019f9af3d7SLiad Kaufman * If a given queue has a higher AC than the TID stream that is being compared 6029f9af3d7SLiad Kaufman * to, the queue needs to be redirected to the lower AC. This function does that 60358f2cc57SLiad Kaufman * in such a case, otherwise - if no redirection required - it does nothing, 60458f2cc57SLiad Kaufman * unless the %force param is true. 60558f2cc57SLiad Kaufman */ 606cfbc6c4cSSara Sharon static int iwl_mvm_redirect_queue(struct iwl_mvm *mvm, int queue, int tid, 60758f2cc57SLiad Kaufman int ac, int ssn, unsigned int wdg_timeout, 608cfbc6c4cSSara Sharon bool force, struct iwl_mvm_txq *txq) 60958f2cc57SLiad Kaufman { 61058f2cc57SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 61158f2cc57SLiad Kaufman .scd_queue = queue, 612f7c692deSLiad Kaufman .action = SCD_CFG_DISABLE_QUEUE, 61358f2cc57SLiad Kaufman }; 61458f2cc57SLiad Kaufman bool shared_queue; 61558f2cc57SLiad Kaufman int ret; 61658f2cc57SLiad Kaufman 617bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 618bb49701bSSara Sharon return -EINVAL; 619bb49701bSSara Sharon 62058f2cc57SLiad Kaufman /* 62158f2cc57SLiad Kaufman * If the AC is lower than current one - FIFO needs to be redirected to 62258f2cc57SLiad Kaufman * the lowest one of the streams in the queue. Check if this is needed 62358f2cc57SLiad Kaufman * here. 62458f2cc57SLiad Kaufman * Notice that the enum ieee80211_ac_numbers is "flipped", so BK is with 62558f2cc57SLiad Kaufman * value 3 and VO with value 0, so to check if ac X is lower than ac Y 62658f2cc57SLiad Kaufman * we need to check if the numerical value of X is LARGER than of Y. 62758f2cc57SLiad Kaufman */ 62858f2cc57SLiad Kaufman if (ac <= mvm->queue_info[queue].mac80211_ac && !force) { 62958f2cc57SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 63058f2cc57SLiad Kaufman "No redirection needed on TXQ #%d\n", 63158f2cc57SLiad Kaufman queue); 63258f2cc57SLiad Kaufman return 0; 63358f2cc57SLiad Kaufman } 63458f2cc57SLiad Kaufman 63558f2cc57SLiad Kaufman cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 63658f2cc57SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[mvm->queue_info[queue].mac80211_ac]; 637edbe961cSLiad Kaufman cmd.tid = mvm->queue_info[queue].txq_tid; 6381c14089eSJohannes Berg shared_queue = hweight16(mvm->queue_info[queue].tid_bitmap) > 1; 63958f2cc57SLiad Kaufman 6409f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Redirecting TXQ #%d to FIFO #%d\n", 64158f2cc57SLiad Kaufman queue, iwl_mvm_ac_to_tx_fifo[ac]); 64258f2cc57SLiad Kaufman 643cfbc6c4cSSara Sharon /* Stop the queue and wait for it to empty */ 644cfbc6c4cSSara Sharon txq->stopped = true; 645cfbc6c4cSSara Sharon 646a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(queue)); 64758f2cc57SLiad Kaufman if (ret) { 64858f2cc57SLiad Kaufman IWL_ERR(mvm, "Error draining queue %d before reconfig\n", 64958f2cc57SLiad Kaufman queue); 65058f2cc57SLiad Kaufman ret = -EIO; 65158f2cc57SLiad Kaufman goto out; 65258f2cc57SLiad Kaufman } 65358f2cc57SLiad Kaufman 65458f2cc57SLiad Kaufman /* Before redirecting the queue we need to de-activate it */ 65558f2cc57SLiad Kaufman iwl_trans_txq_disable(mvm->trans, queue, false); 65658f2cc57SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 65758f2cc57SLiad Kaufman if (ret) 65858f2cc57SLiad Kaufman IWL_ERR(mvm, "Failed SCD disable TXQ %d (ret=%d)\n", queue, 65958f2cc57SLiad Kaufman ret); 66058f2cc57SLiad Kaufman 66158f2cc57SLiad Kaufman /* Make sure the SCD wrptr is correctly set before reconfiguring */ 662ca3b9c6bSSara Sharon iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, wdg_timeout); 66358f2cc57SLiad Kaufman 664edbe961cSLiad Kaufman /* Update the TID "owner" of the queue */ 665edbe961cSLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 666edbe961cSLiad Kaufman 66758f2cc57SLiad Kaufman /* TODO: Work-around SCD bug when moving back by multiples of 0x40 */ 66858f2cc57SLiad Kaufman 66958f2cc57SLiad Kaufman /* Redirect to lower AC */ 67058f2cc57SLiad Kaufman iwl_mvm_reconfig_scd(mvm, queue, iwl_mvm_ac_to_tx_fifo[ac], 6710ec9257bSSara Sharon cmd.sta_id, tid, IWL_FRAME_LIMIT, ssn); 67258f2cc57SLiad Kaufman 67358f2cc57SLiad Kaufman /* Update AC marking of the queue */ 67458f2cc57SLiad Kaufman mvm->queue_info[queue].mac80211_ac = ac; 67558f2cc57SLiad Kaufman 67658f2cc57SLiad Kaufman /* 67758f2cc57SLiad Kaufman * Mark queue as shared in transport if shared 67858f2cc57SLiad Kaufman * Note this has to be done after queue enablement because enablement 67958f2cc57SLiad Kaufman * can also set this value, and there is no indication there to shared 68058f2cc57SLiad Kaufman * queues 68158f2cc57SLiad Kaufman */ 68258f2cc57SLiad Kaufman if (shared_queue) 68358f2cc57SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 68458f2cc57SLiad Kaufman 68558f2cc57SLiad Kaufman out: 686cfbc6c4cSSara Sharon /* Continue using the queue */ 687cfbc6c4cSSara Sharon txq->stopped = false; 68858f2cc57SLiad Kaufman 68958f2cc57SLiad Kaufman return ret; 69058f2cc57SLiad Kaufman } 69158f2cc57SLiad Kaufman 69299448a8cSJohannes Berg static int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 sta_id, 69399448a8cSJohannes Berg u8 minq, u8 maxq) 69499448a8cSJohannes Berg { 69599448a8cSJohannes Berg int i; 69699448a8cSJohannes Berg 697f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 69899448a8cSJohannes Berg 699e5b72e3bSJohannes Berg if (WARN(maxq >= mvm->trans->trans_cfg->base_params->num_of_queues, 700e5b72e3bSJohannes Berg "max queue %d >= num_of_queues (%d)", maxq, 701e5b72e3bSJohannes Berg mvm->trans->trans_cfg->base_params->num_of_queues)) 702e5b72e3bSJohannes Berg maxq = mvm->trans->trans_cfg->base_params->num_of_queues - 1; 703e5b72e3bSJohannes Berg 70499448a8cSJohannes Berg /* This should not be hit with new TX path */ 70599448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 70699448a8cSJohannes Berg return -ENOSPC; 70799448a8cSJohannes Berg 70899448a8cSJohannes Berg /* Start by looking for a free queue */ 70999448a8cSJohannes Berg for (i = minq; i <= maxq; i++) 7101c14089eSJohannes Berg if (mvm->queue_info[i].tid_bitmap == 0 && 71199448a8cSJohannes Berg mvm->queue_info[i].status == IWL_MVM_QUEUE_FREE) 71299448a8cSJohannes Berg return i; 71399448a8cSJohannes Berg 71499448a8cSJohannes Berg return -ENOSPC; 71599448a8cSJohannes Berg } 71699448a8cSJohannes Berg 717cfbc6c4cSSara Sharon static int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm, 71899448a8cSJohannes Berg u8 sta_id, u8 tid, unsigned int timeout) 71999448a8cSJohannes Berg { 720d5399f11SMordechay Goodstein int queue, size; 72199448a8cSJohannes Berg 72299448a8cSJohannes Berg if (tid == IWL_MAX_TID_COUNT) { 72399448a8cSJohannes Berg tid = IWL_MGMT_TID; 724ff911dcaSShaul Triebitz size = max_t(u32, IWL_MGMT_QUEUE_SIZE, 725ff911dcaSShaul Triebitz mvm->trans->cfg->min_txq_size); 726d5399f11SMordechay Goodstein } else { 727d5399f11SMordechay Goodstein struct ieee80211_sta *sta; 728d5399f11SMordechay Goodstein 729d5399f11SMordechay Goodstein rcu_read_lock(); 730d5399f11SMordechay Goodstein sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 731d5399f11SMordechay Goodstein 732d5399f11SMordechay Goodstein /* this queue isn't used for traffic (cab_queue) */ 733d5399f11SMordechay Goodstein if (IS_ERR_OR_NULL(sta)) { 734d5399f11SMordechay Goodstein size = IWL_MGMT_QUEUE_SIZE; 735d5399f11SMordechay Goodstein } else if (sta->he_cap.has_he) { 736d5399f11SMordechay Goodstein /* support for 256 ba size */ 737d5399f11SMordechay Goodstein size = IWL_DEFAULT_QUEUE_SIZE_HE; 738d5399f11SMordechay Goodstein } else { 739d5399f11SMordechay Goodstein size = IWL_DEFAULT_QUEUE_SIZE; 74099448a8cSJohannes Berg } 74199448a8cSJohannes Berg 742d5399f11SMordechay Goodstein rcu_read_unlock(); 743d5399f11SMordechay Goodstein } 744d5399f11SMordechay Goodstein 745d5399f11SMordechay Goodstein /* take the min with bc tbl entries allowed */ 746d5399f11SMordechay Goodstein size = min_t(u32, size, mvm->trans->txqs.bc_tbl_size / sizeof(u16)); 747d5399f11SMordechay Goodstein 748d5399f11SMordechay Goodstein /* size needs to be power of 2 values for calculating read/write pointers */ 749d5399f11SMordechay Goodstein size = rounddown_pow_of_two(size); 750d5399f11SMordechay Goodstein 75192f78d4bSJohannes Berg do { 75292f78d4bSJohannes Berg __le16 enable = cpu_to_le16(TX_QUEUE_CFG_ENABLE_QUEUE); 75392f78d4bSJohannes Berg 75492f78d4bSJohannes Berg queue = iwl_trans_txq_alloc(mvm->trans, enable, 75592f78d4bSJohannes Berg sta_id, tid, SCD_QUEUE_CFG, 75692f78d4bSJohannes Berg size, timeout); 75792f78d4bSJohannes Berg 75892f78d4bSJohannes Berg if (queue < 0) 75999448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 76092f78d4bSJohannes Berg "Failed allocating TXQ of size %d for sta %d tid %d, ret: %d\n", 76192f78d4bSJohannes Berg size, sta_id, tid, queue); 76292f78d4bSJohannes Berg size /= 2; 76392f78d4bSJohannes Berg } while (queue < 0 && size >= 16); 76492f78d4bSJohannes Berg 76592f78d4bSJohannes Berg if (queue < 0) 76699448a8cSJohannes Berg return queue; 76799448a8cSJohannes Berg 76899448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Enabling TXQ #%d for sta %d tid %d\n", 76999448a8cSJohannes Berg queue, sta_id, tid); 77099448a8cSJohannes Berg 77199448a8cSJohannes Berg return queue; 77299448a8cSJohannes Berg } 77399448a8cSJohannes Berg 774310181ecSSara Sharon static int iwl_mvm_sta_alloc_queue_tvqm(struct iwl_mvm *mvm, 775310181ecSSara Sharon struct ieee80211_sta *sta, u8 ac, 776310181ecSSara Sharon int tid) 777310181ecSSara Sharon { 778310181ecSSara Sharon struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 779cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 780cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 781310181ecSSara Sharon unsigned int wdg_timeout = 782310181ecSSara Sharon iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 783310181ecSSara Sharon int queue = -1; 784310181ecSSara Sharon 785310181ecSSara Sharon lockdep_assert_held(&mvm->mutex); 786310181ecSSara Sharon 787310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 788310181ecSSara Sharon "Allocating queue for sta %d on tid %d\n", 789310181ecSSara Sharon mvmsta->sta_id, tid); 790cfbc6c4cSSara Sharon queue = iwl_mvm_tvqm_enable_txq(mvm, mvmsta->sta_id, tid, wdg_timeout); 791310181ecSSara Sharon if (queue < 0) 792310181ecSSara Sharon return queue; 793310181ecSSara Sharon 794cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 795cfbc6c4cSSara Sharon mvm->tvqm_info[queue].txq_tid = tid; 796cfbc6c4cSSara Sharon mvm->tvqm_info[queue].sta_id = mvmsta->sta_id; 797cfbc6c4cSSara Sharon 798310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, "Allocated queue is %d\n", queue); 799310181ecSSara Sharon 800310181ecSSara Sharon spin_lock_bh(&mvmsta->lock); 801310181ecSSara Sharon mvmsta->tid_data[tid].txq_id = queue; 802310181ecSSara Sharon spin_unlock_bh(&mvmsta->lock); 803310181ecSSara Sharon 804310181ecSSara Sharon return 0; 805310181ecSSara Sharon } 806310181ecSSara Sharon 807cfbc6c4cSSara Sharon static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, 808cfbc6c4cSSara Sharon struct ieee80211_sta *sta, 809cfbc6c4cSSara Sharon int queue, u8 sta_id, u8 tid) 81099448a8cSJohannes Berg { 81199448a8cSJohannes Berg bool enable_queue = true; 81299448a8cSJohannes Berg 81399448a8cSJohannes Berg /* Make sure this TID isn't already enabled */ 81499448a8cSJohannes Berg if (mvm->queue_info[queue].tid_bitmap & BIT(tid)) { 81599448a8cSJohannes Berg IWL_ERR(mvm, "Trying to enable TXQ %d with existing TID %d\n", 81699448a8cSJohannes Berg queue, tid); 81799448a8cSJohannes Berg return false; 81899448a8cSJohannes Berg } 81999448a8cSJohannes Berg 82099448a8cSJohannes Berg /* Update mappings and refcounts */ 8211c14089eSJohannes Berg if (mvm->queue_info[queue].tid_bitmap) 82299448a8cSJohannes Berg enable_queue = false; 82399448a8cSJohannes Berg 82499448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap |= BIT(tid); 82599448a8cSJohannes Berg mvm->queue_info[queue].ra_sta_id = sta_id; 82699448a8cSJohannes Berg 82799448a8cSJohannes Berg if (enable_queue) { 82899448a8cSJohannes Berg if (tid != IWL_MAX_TID_COUNT) 82999448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = 83099448a8cSJohannes Berg tid_to_mac80211_ac[tid]; 83199448a8cSJohannes Berg else 83299448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = IEEE80211_AC_VO; 83399448a8cSJohannes Berg 83499448a8cSJohannes Berg mvm->queue_info[queue].txq_tid = tid; 83599448a8cSJohannes Berg } 83699448a8cSJohannes Berg 837cfbc6c4cSSara Sharon if (sta) { 838cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 839cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 840cfbc6c4cSSara Sharon 841cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 842cfbc6c4cSSara Sharon } 843cfbc6c4cSSara Sharon 84499448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 845cfbc6c4cSSara Sharon "Enabling TXQ #%d tids=0x%x\n", 846cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 84799448a8cSJohannes Berg 84899448a8cSJohannes Berg return enable_queue; 84999448a8cSJohannes Berg } 85099448a8cSJohannes Berg 851cfbc6c4cSSara Sharon static bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 852cfbc6c4cSSara Sharon int queue, u16 ssn, 85399448a8cSJohannes Berg const struct iwl_trans_txq_scd_cfg *cfg, 85499448a8cSJohannes Berg unsigned int wdg_timeout) 85599448a8cSJohannes Berg { 85699448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 85799448a8cSJohannes Berg .scd_queue = queue, 85899448a8cSJohannes Berg .action = SCD_CFG_ENABLE_QUEUE, 85999448a8cSJohannes Berg .window = cfg->frame_limit, 86099448a8cSJohannes Berg .sta_id = cfg->sta_id, 86199448a8cSJohannes Berg .ssn = cpu_to_le16(ssn), 86299448a8cSJohannes Berg .tx_fifo = cfg->fifo, 86399448a8cSJohannes Berg .aggregate = cfg->aggregate, 86499448a8cSJohannes Berg .tid = cfg->tid, 86599448a8cSJohannes Berg }; 86699448a8cSJohannes Berg bool inc_ssn; 86799448a8cSJohannes Berg 86899448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 86999448a8cSJohannes Berg return false; 87099448a8cSJohannes Berg 87199448a8cSJohannes Berg /* Send the enabling command if we need to */ 872cfbc6c4cSSara Sharon if (!iwl_mvm_update_txq_mapping(mvm, sta, queue, cfg->sta_id, cfg->tid)) 87399448a8cSJohannes Berg return false; 87499448a8cSJohannes Berg 87599448a8cSJohannes Berg inc_ssn = iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, 87699448a8cSJohannes Berg NULL, wdg_timeout); 87799448a8cSJohannes Berg if (inc_ssn) 87899448a8cSJohannes Berg le16_add_cpu(&cmd.ssn, 1); 87999448a8cSJohannes Berg 88099448a8cSJohannes Berg WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd), 88199448a8cSJohannes Berg "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo); 88299448a8cSJohannes Berg 88399448a8cSJohannes Berg return inc_ssn; 88499448a8cSJohannes Berg } 88599448a8cSJohannes Berg 886b3a87f11SJohannes Berg static void iwl_mvm_change_queue_tid(struct iwl_mvm *mvm, int queue) 88719aefa45SLiad Kaufman { 88819aefa45SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 88919aefa45SLiad Kaufman .scd_queue = queue, 89019aefa45SLiad Kaufman .action = SCD_CFG_UPDATE_QUEUE_TID, 89119aefa45SLiad Kaufman }; 89219aefa45SLiad Kaufman int tid; 89319aefa45SLiad Kaufman unsigned long tid_bitmap; 89419aefa45SLiad Kaufman int ret; 89519aefa45SLiad Kaufman 89619aefa45SLiad Kaufman lockdep_assert_held(&mvm->mutex); 89719aefa45SLiad Kaufman 898bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 899bb49701bSSara Sharon return; 900bb49701bSSara Sharon 90119aefa45SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 90219aefa45SLiad Kaufman 90319aefa45SLiad Kaufman if (WARN(!tid_bitmap, "TXQ %d has no tids assigned to it\n", queue)) 90419aefa45SLiad Kaufman return; 90519aefa45SLiad Kaufman 90619aefa45SLiad Kaufman /* Find any TID for queue */ 90719aefa45SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 90819aefa45SLiad Kaufman cmd.tid = tid; 90919aefa45SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 91019aefa45SLiad Kaufman 91119aefa45SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 912341ca402SLiad Kaufman if (ret) { 91319aefa45SLiad Kaufman IWL_ERR(mvm, "Failed to update owner of TXQ %d (ret=%d)\n", 91419aefa45SLiad Kaufman queue, ret); 915341ca402SLiad Kaufman return; 916341ca402SLiad Kaufman } 917341ca402SLiad Kaufman 918341ca402SLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 91919aefa45SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Changed TXQ %d ownership to tid %d\n", 92019aefa45SLiad Kaufman queue, tid); 92119aefa45SLiad Kaufman } 92219aefa45SLiad Kaufman 9239f9af3d7SLiad Kaufman static void iwl_mvm_unshare_queue(struct iwl_mvm *mvm, int queue) 9249f9af3d7SLiad Kaufman { 9259f9af3d7SLiad Kaufman struct ieee80211_sta *sta; 9269f9af3d7SLiad Kaufman struct iwl_mvm_sta *mvmsta; 927806911daSSharon Dvir u8 sta_id; 9289f9af3d7SLiad Kaufman int tid = -1; 9299f9af3d7SLiad Kaufman unsigned long tid_bitmap; 9309f9af3d7SLiad Kaufman unsigned int wdg_timeout; 9319f9af3d7SLiad Kaufman int ssn; 9329f9af3d7SLiad Kaufman int ret = true; 9339f9af3d7SLiad Kaufman 934bb49701bSSara Sharon /* queue sharing is disabled on new TX path */ 935bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 936bb49701bSSara Sharon return; 937bb49701bSSara Sharon 9389f9af3d7SLiad Kaufman lockdep_assert_held(&mvm->mutex); 9399f9af3d7SLiad Kaufman 9409f9af3d7SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 9419f9af3d7SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 9429f9af3d7SLiad Kaufman 9439f9af3d7SLiad Kaufman /* Find TID for queue, and make sure it is the only one on the queue */ 9449f9af3d7SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 9459f9af3d7SLiad Kaufman if (tid_bitmap != BIT(tid)) { 9469f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to unshare q %d, active tids=0x%lx\n", 9479f9af3d7SLiad Kaufman queue, tid_bitmap); 9489f9af3d7SLiad Kaufman return; 9499f9af3d7SLiad Kaufman } 9509f9af3d7SLiad Kaufman 9519f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Unsharing TXQ %d, keeping tid %d\n", queue, 9529f9af3d7SLiad Kaufman tid); 9539f9af3d7SLiad Kaufman 9549f9af3d7SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 9559f9af3d7SLiad Kaufman lockdep_is_held(&mvm->mutex)); 9569f9af3d7SLiad Kaufman 9579f9af3d7SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 9589f9af3d7SLiad Kaufman return; 9599f9af3d7SLiad Kaufman 9609f9af3d7SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 9619f9af3d7SLiad Kaufman wdg_timeout = iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 9629f9af3d7SLiad Kaufman 9639f9af3d7SLiad Kaufman ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 9649f9af3d7SLiad Kaufman 965cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, 9669f9af3d7SLiad Kaufman tid_to_mac80211_ac[tid], ssn, 967cfbc6c4cSSara Sharon wdg_timeout, true, 968cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 9699f9af3d7SLiad Kaufman if (ret) { 9709f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to redirect TXQ %d\n", queue); 9719f9af3d7SLiad Kaufman return; 9729f9af3d7SLiad Kaufman } 9739f9af3d7SLiad Kaufman 9749f9af3d7SLiad Kaufman /* If aggs should be turned back on - do it */ 9759f9af3d7SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) { 9769cd70e80SEmmanuel Grumbach struct iwl_mvm_add_sta_cmd cmd = {0}; 9779f9af3d7SLiad Kaufman 9789f9af3d7SLiad Kaufman mvmsta->tid_disable_agg &= ~BIT(tid); 9799f9af3d7SLiad Kaufman 9809f9af3d7SLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 9819f9af3d7SLiad Kaufman cmd.sta_id = mvmsta->sta_id; 9829f9af3d7SLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 9839f9af3d7SLiad Kaufman cmd.modify_mask = STA_MODIFY_TID_DISABLE_TX; 9849f9af3d7SLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 9859f9af3d7SLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 9869f9af3d7SLiad Kaufman 9879f9af3d7SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 9889f9af3d7SLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), &cmd); 9899f9af3d7SLiad Kaufman if (!ret) { 9909f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 9919f9af3d7SLiad Kaufman "TXQ #%d is now aggregated again\n", 9929f9af3d7SLiad Kaufman queue); 9939f9af3d7SLiad Kaufman 9949f9af3d7SLiad Kaufman /* Mark queue intenally as aggregating again */ 9959f9af3d7SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, false); 9969f9af3d7SLiad Kaufman } 9979f9af3d7SLiad Kaufman } 9989f9af3d7SLiad Kaufman 9999f9af3d7SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 10009f9af3d7SLiad Kaufman } 10019f9af3d7SLiad Kaufman 100299448a8cSJohannes Berg /* 100399448a8cSJohannes Berg * Remove inactive TIDs of a given queue. 100499448a8cSJohannes Berg * If all queue TIDs are inactive - mark the queue as inactive 100599448a8cSJohannes Berg * If only some the queue TIDs are inactive - unmap them from the queue 1006724fe771SJohannes Berg * 1007724fe771SJohannes Berg * Returns %true if all TIDs were removed and the queue could be reused. 100899448a8cSJohannes Berg */ 1009724fe771SJohannes Berg static bool iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm, 101099448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta, int queue, 101190d2d94cSJohannes Berg unsigned long tid_bitmap, 1012b3a87f11SJohannes Berg unsigned long *unshare_queues, 1013b3a87f11SJohannes Berg unsigned long *changetid_queues) 101499448a8cSJohannes Berg { 101599448a8cSJohannes Berg int tid; 101699448a8cSJohannes Berg 101799448a8cSJohannes Berg lockdep_assert_held(&mvmsta->lock); 1018f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 101999448a8cSJohannes Berg 102099448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1021724fe771SJohannes Berg return false; 102299448a8cSJohannes Berg 102399448a8cSJohannes Berg /* Go over all non-active TIDs, incl. IWL_MAX_TID_COUNT (for mgmt) */ 102499448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 102599448a8cSJohannes Berg /* If some TFDs are still queued - don't mark TID as inactive */ 102699448a8cSJohannes Berg if (iwl_mvm_tid_queued(mvm, &mvmsta->tid_data[tid])) 102799448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 102899448a8cSJohannes Berg 102999448a8cSJohannes Berg /* Don't mark as inactive any TID that has an active BA */ 103099448a8cSJohannes Berg if (mvmsta->tid_data[tid].state != IWL_AGG_OFF) 103199448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 103299448a8cSJohannes Berg } 103399448a8cSJohannes Berg 1034724fe771SJohannes Berg /* If all TIDs in the queue are inactive - return it can be reused */ 103599448a8cSJohannes Berg if (tid_bitmap == mvm->queue_info[queue].tid_bitmap) { 1036724fe771SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Queue %d is inactive\n", queue); 1037724fe771SJohannes Berg return true; 103899448a8cSJohannes Berg } 103999448a8cSJohannes Berg 104099448a8cSJohannes Berg /* 104199448a8cSJohannes Berg * If we are here, this is a shared queue and not all TIDs timed-out. 104299448a8cSJohannes Berg * Remove the ones that did. 104399448a8cSJohannes Berg */ 104499448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1045d4530f63SJohannes Berg u16 q_tid_bitmap; 104699448a8cSJohannes Berg 104799448a8cSJohannes Berg mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 104899448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 104999448a8cSJohannes Berg 1050d4530f63SJohannes Berg q_tid_bitmap = mvm->queue_info[queue].tid_bitmap; 1051b3a87f11SJohannes Berg 1052b3a87f11SJohannes Berg /* 1053b3a87f11SJohannes Berg * We need to take into account a situation in which a TXQ was 1054b3a87f11SJohannes Berg * allocated to TID x, and then turned shared by adding TIDs y 1055b3a87f11SJohannes Berg * and z. If TID x becomes inactive and is removed from the TXQ, 1056b3a87f11SJohannes Berg * ownership must be given to one of the remaining TIDs. 1057b3a87f11SJohannes Berg * This is mainly because if TID x continues - a new queue can't 1058b3a87f11SJohannes Berg * be allocated for it as long as it is an owner of another TXQ. 1059b3a87f11SJohannes Berg * 1060b3a87f11SJohannes Berg * Mark this queue in the right bitmap, we'll send the command 1061b3a87f11SJohannes Berg * to the firmware later. 1062b3a87f11SJohannes Berg */ 1063d4530f63SJohannes Berg if (!(q_tid_bitmap & BIT(mvm->queue_info[queue].txq_tid))) 1064b3a87f11SJohannes Berg set_bit(queue, changetid_queues); 1065b3a87f11SJohannes Berg 106699448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 106799448a8cSJohannes Berg "Removing inactive TID %d from shared Q:%d\n", 106899448a8cSJohannes Berg tid, queue); 106999448a8cSJohannes Berg } 107099448a8cSJohannes Berg 107199448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 107299448a8cSJohannes Berg "TXQ #%d left with tid bitmap 0x%x\n", queue, 107399448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap); 107499448a8cSJohannes Berg 107599448a8cSJohannes Berg /* 107699448a8cSJohannes Berg * There may be different TIDs with the same mac queues, so make 107799448a8cSJohannes Berg * sure all TIDs have existing corresponding mac queues enabled 107899448a8cSJohannes Berg */ 107999448a8cSJohannes Berg tid_bitmap = mvm->queue_info[queue].tid_bitmap; 108099448a8cSJohannes Berg 108199448a8cSJohannes Berg /* If the queue is marked as shared - "unshare" it */ 10821c14089eSJohannes Berg if (hweight16(mvm->queue_info[queue].tid_bitmap) == 1 && 108399448a8cSJohannes Berg mvm->queue_info[queue].status == IWL_MVM_QUEUE_SHARED) { 108499448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Marking Q:%d for reconfig\n", 108599448a8cSJohannes Berg queue); 108690d2d94cSJohannes Berg set_bit(queue, unshare_queues); 108799448a8cSJohannes Berg } 1088724fe771SJohannes Berg 1089724fe771SJohannes Berg return false; 109099448a8cSJohannes Berg } 109199448a8cSJohannes Berg 1092724fe771SJohannes Berg /* 1093724fe771SJohannes Berg * Check for inactivity - this includes checking if any queue 1094724fe771SJohannes Berg * can be unshared and finding one (and only one) that can be 1095724fe771SJohannes Berg * reused. 1096724fe771SJohannes Berg * This function is also invoked as a sort of clean-up task, 1097724fe771SJohannes Berg * in which case @alloc_for_sta is IWL_MVM_INVALID_STA. 1098724fe771SJohannes Berg * 1099724fe771SJohannes Berg * Returns the queue number, or -ENOSPC. 1100724fe771SJohannes Berg */ 1101724fe771SJohannes Berg static int iwl_mvm_inactivity_check(struct iwl_mvm *mvm, u8 alloc_for_sta) 110299448a8cSJohannes Berg { 110399448a8cSJohannes Berg unsigned long now = jiffies; 110490d2d94cSJohannes Berg unsigned long unshare_queues = 0; 1105b3a87f11SJohannes Berg unsigned long changetid_queues = 0; 1106724fe771SJohannes Berg int i, ret, free_queue = -ENOSPC; 1107cfbc6c4cSSara Sharon struct ieee80211_sta *queue_owner = NULL; 110899448a8cSJohannes Berg 1109df2a2245SJohannes Berg lockdep_assert_held(&mvm->mutex); 1110df2a2245SJohannes Berg 111199448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1112724fe771SJohannes Berg return -ENOSPC; 111399448a8cSJohannes Berg 111499448a8cSJohannes Berg rcu_read_lock(); 111599448a8cSJohannes Berg 1116459ab045SJohannes Berg /* we skip the CMD queue below by starting at 1 */ 1117459ab045SJohannes Berg BUILD_BUG_ON(IWL_MVM_DQA_CMD_QUEUE != 0); 1118459ab045SJohannes Berg 1119459ab045SJohannes Berg for (i = 1; i < IWL_MAX_HW_QUEUES; i++) { 112099448a8cSJohannes Berg struct ieee80211_sta *sta; 112199448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta; 112299448a8cSJohannes Berg u8 sta_id; 112399448a8cSJohannes Berg int tid; 112499448a8cSJohannes Berg unsigned long inactive_tid_bitmap = 0; 112599448a8cSJohannes Berg unsigned long queue_tid_bitmap; 112699448a8cSJohannes Berg 112799448a8cSJohannes Berg queue_tid_bitmap = mvm->queue_info[i].tid_bitmap; 1128459ab045SJohannes Berg if (!queue_tid_bitmap) 1129459ab045SJohannes Berg continue; 113099448a8cSJohannes Berg 113199448a8cSJohannes Berg /* If TXQ isn't in active use anyway - nothing to do here... */ 113299448a8cSJohannes Berg if (mvm->queue_info[i].status != IWL_MVM_QUEUE_READY && 1133459ab045SJohannes Berg mvm->queue_info[i].status != IWL_MVM_QUEUE_SHARED) 113499448a8cSJohannes Berg continue; 113599448a8cSJohannes Berg 113699448a8cSJohannes Berg /* Check to see if there are inactive TIDs on this queue */ 113799448a8cSJohannes Berg for_each_set_bit(tid, &queue_tid_bitmap, 113899448a8cSJohannes Berg IWL_MAX_TID_COUNT + 1) { 113999448a8cSJohannes Berg if (time_after(mvm->queue_info[i].last_frame_time[tid] + 114099448a8cSJohannes Berg IWL_MVM_DQA_QUEUE_TIMEOUT, now)) 114199448a8cSJohannes Berg continue; 114299448a8cSJohannes Berg 114399448a8cSJohannes Berg inactive_tid_bitmap |= BIT(tid); 114499448a8cSJohannes Berg } 114599448a8cSJohannes Berg 114699448a8cSJohannes Berg /* If all TIDs are active - finish check on this queue */ 114799448a8cSJohannes Berg if (!inactive_tid_bitmap) 114899448a8cSJohannes Berg continue; 114999448a8cSJohannes Berg 115099448a8cSJohannes Berg /* 115199448a8cSJohannes Berg * If we are here - the queue hadn't been served recently and is 115299448a8cSJohannes Berg * in use 115399448a8cSJohannes Berg */ 115499448a8cSJohannes Berg 115599448a8cSJohannes Berg sta_id = mvm->queue_info[i].ra_sta_id; 115699448a8cSJohannes Berg sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 115799448a8cSJohannes Berg 115899448a8cSJohannes Berg /* 115999448a8cSJohannes Berg * If the STA doesn't exist anymore, it isn't an error. It could 116099448a8cSJohannes Berg * be that it was removed since getting the queues, and in this 116199448a8cSJohannes Berg * case it should've inactivated its queues anyway. 116299448a8cSJohannes Berg */ 116399448a8cSJohannes Berg if (IS_ERR_OR_NULL(sta)) 116499448a8cSJohannes Berg continue; 116599448a8cSJohannes Berg 116699448a8cSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 116799448a8cSJohannes Berg 1168f3f240f9SJohannes Berg spin_lock_bh(&mvmsta->lock); 1169724fe771SJohannes Berg ret = iwl_mvm_remove_inactive_tids(mvm, mvmsta, i, 117090d2d94cSJohannes Berg inactive_tid_bitmap, 1171b3a87f11SJohannes Berg &unshare_queues, 1172b3a87f11SJohannes Berg &changetid_queues); 1173e6d419f9SJohannes Berg if (ret && free_queue < 0) { 1174cfbc6c4cSSara Sharon queue_owner = sta; 1175e6d419f9SJohannes Berg free_queue = i; 1176cfbc6c4cSSara Sharon } 1177459ab045SJohannes Berg /* only unlock sta lock - we still need the queue info lock */ 1178f3f240f9SJohannes Berg spin_unlock_bh(&mvmsta->lock); 117999448a8cSJohannes Berg } 118099448a8cSJohannes Berg 1181df2a2245SJohannes Berg 1182df2a2245SJohannes Berg /* Reconfigure queues requiring reconfiguation */ 118390d2d94cSJohannes Berg for_each_set_bit(i, &unshare_queues, IWL_MAX_HW_QUEUES) 118490d2d94cSJohannes Berg iwl_mvm_unshare_queue(mvm, i); 1185b3a87f11SJohannes Berg for_each_set_bit(i, &changetid_queues, IWL_MAX_HW_QUEUES) 1186b3a87f11SJohannes Berg iwl_mvm_change_queue_tid(mvm, i); 1187724fe771SJohannes Berg 1188fbb1461aSJohannes Berg rcu_read_unlock(); 1189fbb1461aSJohannes Berg 1190724fe771SJohannes Berg if (free_queue >= 0 && alloc_for_sta != IWL_MVM_INVALID_STA) { 1191cfbc6c4cSSara Sharon ret = iwl_mvm_free_inactive_queue(mvm, free_queue, queue_owner, 1192724fe771SJohannes Berg alloc_for_sta); 1193fbb1461aSJohannes Berg if (ret) 1194724fe771SJohannes Berg return ret; 1195724fe771SJohannes Berg } 1196724fe771SJohannes Berg 1197724fe771SJohannes Berg return free_queue; 119899448a8cSJohannes Berg } 119999448a8cSJohannes Berg 1200c20e08b0SJohannes Berg static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm, 1201cfbc6c4cSSara Sharon struct ieee80211_sta *sta, u8 ac, int tid) 1202c20e08b0SJohannes Berg { 1203c20e08b0SJohannes Berg struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1204c20e08b0SJohannes Berg struct iwl_trans_txq_scd_cfg cfg = { 1205c20e08b0SJohannes Berg .fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac), 1206c20e08b0SJohannes Berg .sta_id = mvmsta->sta_id, 1207c20e08b0SJohannes Berg .tid = tid, 1208c20e08b0SJohannes Berg .frame_limit = IWL_FRAME_LIMIT, 1209c20e08b0SJohannes Berg }; 1210c20e08b0SJohannes Berg unsigned int wdg_timeout = 1211c20e08b0SJohannes Berg iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 1212c20e08b0SJohannes Berg int queue = -1; 1213c6ce1c74SJohannes Berg u16 queue_tmp; 1214c20e08b0SJohannes Berg unsigned long disable_agg_tids = 0; 1215c20e08b0SJohannes Berg enum iwl_mvm_agg_state queue_state; 1216c20e08b0SJohannes Berg bool shared_queue = false, inc_ssn; 1217c20e08b0SJohannes Berg int ssn; 1218c20e08b0SJohannes Berg unsigned long tfd_queue_mask; 1219c20e08b0SJohannes Berg int ret; 1220c20e08b0SJohannes Berg 1221c20e08b0SJohannes Berg lockdep_assert_held(&mvm->mutex); 1222c20e08b0SJohannes Berg 1223c20e08b0SJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1224c20e08b0SJohannes Berg return iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 1225c20e08b0SJohannes Berg 1226c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1227c20e08b0SJohannes Berg tfd_queue_mask = mvmsta->tfd_queue_msk; 122835739348SSara Sharon ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 1229c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1230c20e08b0SJohannes Berg 1231cfbc6c4cSSara Sharon if (tid == IWL_MAX_TID_COUNT) { 1232c20e08b0SJohannes Berg queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 1233c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_MGMT_QUEUE, 1234c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_MGMT_QUEUE); 1235c20e08b0SJohannes Berg if (queue >= IWL_MVM_DQA_MIN_MGMT_QUEUE) 1236c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Found free MGMT queue #%d\n", 1237c20e08b0SJohannes Berg queue); 1238c20e08b0SJohannes Berg 1239c20e08b0SJohannes Berg /* If no such queue is found, we'll use a DATA queue instead */ 1240c20e08b0SJohannes Berg } 1241c20e08b0SJohannes Berg 1242c20e08b0SJohannes Berg if ((queue < 0 && mvmsta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) && 1243c20e08b0SJohannes Berg (mvm->queue_info[mvmsta->reserved_queue].status == 1244724fe771SJohannes Berg IWL_MVM_QUEUE_RESERVED)) { 1245c20e08b0SJohannes Berg queue = mvmsta->reserved_queue; 1246c20e08b0SJohannes Berg mvm->queue_info[queue].reserved = true; 1247c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Using reserved queue #%d\n", queue); 1248c20e08b0SJohannes Berg } 1249c20e08b0SJohannes Berg 1250c20e08b0SJohannes Berg if (queue < 0) 1251c20e08b0SJohannes Berg queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 1252c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 1253c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 1254724fe771SJohannes Berg if (queue < 0) { 1255724fe771SJohannes Berg /* try harder - perhaps kill an inactive queue */ 1256724fe771SJohannes Berg queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id); 1257c20e08b0SJohannes Berg } 1258c20e08b0SJohannes Berg 1259c20e08b0SJohannes Berg /* No free queue - we'll have to share */ 1260c20e08b0SJohannes Berg if (queue <= 0) { 1261c20e08b0SJohannes Berg queue = iwl_mvm_get_shared_queue(mvm, tfd_queue_mask, ac); 1262c20e08b0SJohannes Berg if (queue > 0) { 1263c20e08b0SJohannes Berg shared_queue = true; 1264c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_SHARED; 1265c20e08b0SJohannes Berg } 1266c20e08b0SJohannes Berg } 1267c20e08b0SJohannes Berg 1268c20e08b0SJohannes Berg /* 1269c20e08b0SJohannes Berg * Mark TXQ as ready, even though it hasn't been fully configured yet, 1270c20e08b0SJohannes Berg * to make sure no one else takes it. 1271c20e08b0SJohannes Berg * This will allow avoiding re-acquiring the lock at the end of the 1272c20e08b0SJohannes Berg * configuration. On error we'll mark it back as free. 1273c20e08b0SJohannes Berg */ 1274c20e08b0SJohannes Berg if (queue > 0 && !shared_queue) 1275c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 1276c20e08b0SJohannes Berg 1277c20e08b0SJohannes Berg /* This shouldn't happen - out of queues */ 1278c20e08b0SJohannes Berg if (WARN_ON(queue <= 0)) { 1279c20e08b0SJohannes Berg IWL_ERR(mvm, "No available queues for tid %d on sta_id %d\n", 1280c20e08b0SJohannes Berg tid, cfg.sta_id); 1281c20e08b0SJohannes Berg return queue; 1282c20e08b0SJohannes Berg } 1283c20e08b0SJohannes Berg 1284c20e08b0SJohannes Berg /* 1285c20e08b0SJohannes Berg * Actual en/disablement of aggregations is through the ADD_STA HCMD, 1286c20e08b0SJohannes Berg * but for configuring the SCD to send A-MPDUs we need to mark the queue 1287c20e08b0SJohannes Berg * as aggregatable. 1288c20e08b0SJohannes Berg * Mark all DATA queues as allowing to be aggregated at some point 1289c20e08b0SJohannes Berg */ 1290c20e08b0SJohannes Berg cfg.aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1291c20e08b0SJohannes Berg queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE); 1292c20e08b0SJohannes Berg 1293c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 1294c20e08b0SJohannes Berg "Allocating %squeue #%d to sta %d on tid %d\n", 1295c20e08b0SJohannes Berg shared_queue ? "shared " : "", queue, 1296c20e08b0SJohannes Berg mvmsta->sta_id, tid); 1297c20e08b0SJohannes Berg 1298c20e08b0SJohannes Berg if (shared_queue) { 1299c20e08b0SJohannes Berg /* Disable any open aggs on this queue */ 1300c20e08b0SJohannes Berg disable_agg_tids = iwl_mvm_get_queue_agg_tids(mvm, queue); 1301c20e08b0SJohannes Berg 1302c20e08b0SJohannes Berg if (disable_agg_tids) { 1303c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Disabling aggs on queue %d\n", 1304c20e08b0SJohannes Berg queue); 1305c20e08b0SJohannes Berg iwl_mvm_invalidate_sta_queue(mvm, queue, 1306c20e08b0SJohannes Berg disable_agg_tids, false); 1307c20e08b0SJohannes Berg } 1308c20e08b0SJohannes Berg } 1309c20e08b0SJohannes Berg 1310cfbc6c4cSSara Sharon inc_ssn = iwl_mvm_enable_txq(mvm, sta, queue, ssn, &cfg, wdg_timeout); 1311c20e08b0SJohannes Berg 1312c20e08b0SJohannes Berg /* 1313c20e08b0SJohannes Berg * Mark queue as shared in transport if shared 1314c20e08b0SJohannes Berg * Note this has to be done after queue enablement because enablement 1315c20e08b0SJohannes Berg * can also set this value, and there is no indication there to shared 1316c20e08b0SJohannes Berg * queues 1317c20e08b0SJohannes Berg */ 1318c20e08b0SJohannes Berg if (shared_queue) 1319c20e08b0SJohannes Berg iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 1320c20e08b0SJohannes Berg 1321c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1322c20e08b0SJohannes Berg /* 1323c20e08b0SJohannes Berg * This looks racy, but it is not. We have only one packet for 1324c20e08b0SJohannes Berg * this ra/tid in our Tx path since we stop the Qdisc when we 1325c20e08b0SJohannes Berg * need to allocate a new TFD queue. 1326c20e08b0SJohannes Berg */ 132735739348SSara Sharon if (inc_ssn) { 1328c20e08b0SJohannes Berg mvmsta->tid_data[tid].seq_number += 0x10; 132935739348SSara Sharon ssn = (ssn + 1) & IEEE80211_SCTL_SEQ; 133035739348SSara Sharon } 1331c20e08b0SJohannes Berg mvmsta->tid_data[tid].txq_id = queue; 1332c20e08b0SJohannes Berg mvmsta->tfd_queue_msk |= BIT(queue); 1333c20e08b0SJohannes Berg queue_state = mvmsta->tid_data[tid].state; 1334c20e08b0SJohannes Berg 1335c20e08b0SJohannes Berg if (mvmsta->reserved_queue == queue) 1336c20e08b0SJohannes Berg mvmsta->reserved_queue = IEEE80211_INVAL_HW_QUEUE; 1337c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1338c20e08b0SJohannes Berg 1339c20e08b0SJohannes Berg if (!shared_queue) { 1340c20e08b0SJohannes Berg ret = iwl_mvm_sta_send_to_fw(mvm, sta, true, STA_MODIFY_QUEUES); 1341c20e08b0SJohannes Berg if (ret) 1342c20e08b0SJohannes Berg goto out_err; 1343c20e08b0SJohannes Berg 1344c20e08b0SJohannes Berg /* If we need to re-enable aggregations... */ 1345c20e08b0SJohannes Berg if (queue_state == IWL_AGG_ON) { 1346c20e08b0SJohannes Berg ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 1347c20e08b0SJohannes Berg if (ret) 1348c20e08b0SJohannes Berg goto out_err; 1349c20e08b0SJohannes Berg } 1350c20e08b0SJohannes Berg } else { 1351c20e08b0SJohannes Berg /* Redirect queue, if needed */ 1352cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, ac, ssn, 1353cfbc6c4cSSara Sharon wdg_timeout, false, 1354cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 1355c20e08b0SJohannes Berg if (ret) 1356c20e08b0SJohannes Berg goto out_err; 1357c20e08b0SJohannes Berg } 1358c20e08b0SJohannes Berg 1359c20e08b0SJohannes Berg return 0; 1360c20e08b0SJohannes Berg 1361c20e08b0SJohannes Berg out_err: 1362c6ce1c74SJohannes Berg queue_tmp = queue; 1363c6ce1c74SJohannes Berg iwl_mvm_disable_txq(mvm, sta, &queue_tmp, tid, 0); 1364c20e08b0SJohannes Berg 1365c20e08b0SJohannes Berg return ret; 1366c20e08b0SJohannes Berg } 1367c20e08b0SJohannes Berg 136824afba76SLiad Kaufman void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk) 136924afba76SLiad Kaufman { 137024afba76SLiad Kaufman struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, 137124afba76SLiad Kaufman add_stream_wk); 137224afba76SLiad Kaufman 137324afba76SLiad Kaufman mutex_lock(&mvm->mutex); 137424afba76SLiad Kaufman 1375724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 13769f9af3d7SLiad Kaufman 1377cfbc6c4cSSara Sharon while (!list_empty(&mvm->add_stream_txqs)) { 1378cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq; 1379cfbc6c4cSSara Sharon struct ieee80211_txq *txq; 1380cfbc6c4cSSara Sharon u8 tid; 138124afba76SLiad Kaufman 1382cfbc6c4cSSara Sharon mvmtxq = list_first_entry(&mvm->add_stream_txqs, 1383cfbc6c4cSSara Sharon struct iwl_mvm_txq, list); 138424afba76SLiad Kaufman 1385cfbc6c4cSSara Sharon txq = container_of((void *)mvmtxq, struct ieee80211_txq, 1386cfbc6c4cSSara Sharon drv_priv); 1387cfbc6c4cSSara Sharon tid = txq->tid; 1388cfbc6c4cSSara Sharon if (tid == IEEE80211_NUM_TIDS) 1389cfbc6c4cSSara Sharon tid = IWL_MAX_TID_COUNT; 1390cfbc6c4cSSara Sharon 13913d1d87abSJohannes Berg /* 13923d1d87abSJohannes Berg * We can't really do much here, but if this fails we can't 13933d1d87abSJohannes Berg * transmit anyway - so just don't transmit the frame etc. 13943d1d87abSJohannes Berg * and let them back up ... we've tried our best to allocate 13953d1d87abSJohannes Berg * a queue in the function itself. 13963d1d87abSJohannes Berg */ 13973d1d87abSJohannes Berg if (iwl_mvm_sta_alloc_queue(mvm, txq->sta, txq->ac, tid)) { 13983d1d87abSJohannes Berg list_del_init(&mvmtxq->list); 13993d1d87abSJohannes Berg continue; 14003d1d87abSJohannes Berg } 14013d1d87abSJohannes Berg 1402cfbc6c4cSSara Sharon list_del_init(&mvmtxq->list); 1403f5ae2f93SJohannes Berg local_bh_disable(); 1404cfbc6c4cSSara Sharon iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1405f5ae2f93SJohannes Berg local_bh_enable(); 140624afba76SLiad Kaufman } 140724afba76SLiad Kaufman 140824afba76SLiad Kaufman mutex_unlock(&mvm->mutex); 140924afba76SLiad Kaufman } 141024afba76SLiad Kaufman 141124afba76SLiad Kaufman static int iwl_mvm_reserve_sta_stream(struct iwl_mvm *mvm, 1412d5216a28SLiad Kaufman struct ieee80211_sta *sta, 1413d5216a28SLiad Kaufman enum nl80211_iftype vif_type) 141424afba76SLiad Kaufman { 141524afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 141624afba76SLiad Kaufman int queue; 141724afba76SLiad Kaufman 1418396952eeSSara Sharon /* queue reserving is disabled on new TX path */ 1419396952eeSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1420396952eeSSara Sharon return 0; 1421396952eeSSara Sharon 1422724fe771SJohannes Berg /* run the general cleanup/unsharing of queues */ 1423724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 14249794c64fSLiad Kaufman 142524afba76SLiad Kaufman /* Make sure we have free resources for this STA */ 1426d5216a28SLiad Kaufman if (vif_type == NL80211_IFTYPE_STATION && !sta->tdls && 14271c14089eSJohannes Berg !mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].tid_bitmap && 1428cf961e16SLiad Kaufman (mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].status == 1429cf961e16SLiad Kaufman IWL_MVM_QUEUE_FREE)) 1430d5216a28SLiad Kaufman queue = IWL_MVM_DQA_BSS_CLIENT_QUEUE; 1431d5216a28SLiad Kaufman else 14329794c64fSLiad Kaufman queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 14339794c64fSLiad Kaufman IWL_MVM_DQA_MIN_DATA_QUEUE, 143424afba76SLiad Kaufman IWL_MVM_DQA_MAX_DATA_QUEUE); 143524afba76SLiad Kaufman if (queue < 0) { 1436724fe771SJohannes Berg /* try again - this time kick out a queue if needed */ 1437724fe771SJohannes Berg queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id); 1438724fe771SJohannes Berg if (queue < 0) { 143924afba76SLiad Kaufman IWL_ERR(mvm, "No available queues for new station\n"); 144024afba76SLiad Kaufman return -ENOSPC; 1441724fe771SJohannes Berg } 144224afba76SLiad Kaufman } 1443cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_RESERVED; 144424afba76SLiad Kaufman 144524afba76SLiad Kaufman mvmsta->reserved_queue = queue; 144624afba76SLiad Kaufman 144724afba76SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Reserving data queue #%d for sta_id %d\n", 144824afba76SLiad Kaufman queue, mvmsta->sta_id); 144924afba76SLiad Kaufman 145024afba76SLiad Kaufman return 0; 145124afba76SLiad Kaufman } 145224afba76SLiad Kaufman 14538d98ae6eSLiad Kaufman /* 14548d98ae6eSLiad Kaufman * In DQA mode, after a HW restart the queues should be allocated as before, in 14558d98ae6eSLiad Kaufman * order to avoid race conditions when there are shared queues. This function 14568d98ae6eSLiad Kaufman * does the re-mapping and queue allocation. 14578d98ae6eSLiad Kaufman * 14588d98ae6eSLiad Kaufman * Note that re-enabling aggregations isn't done in this function. 14598d98ae6eSLiad Kaufman */ 14608d98ae6eSLiad Kaufman static void iwl_mvm_realloc_queues_after_restart(struct iwl_mvm *mvm, 1461cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 14628d98ae6eSLiad Kaufman { 1463cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1464cfbc6c4cSSara Sharon unsigned int wdg = 14658d98ae6eSLiad Kaufman iwl_mvm_get_wd_timeout(mvm, mvm_sta->vif, false, false); 14668d98ae6eSLiad Kaufman int i; 14678d98ae6eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 14688d98ae6eSLiad Kaufman .sta_id = mvm_sta->sta_id, 14698d98ae6eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 14708d98ae6eSLiad Kaufman }; 14718d98ae6eSLiad Kaufman 147203c902bfSJohannes Berg /* Make sure reserved queue is still marked as such (if allocated) */ 147303c902bfSJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) 14748d98ae6eSLiad Kaufman mvm->queue_info[mvm_sta->reserved_queue].status = 14758d98ae6eSLiad Kaufman IWL_MVM_QUEUE_RESERVED; 14768d98ae6eSLiad Kaufman 14778d98ae6eSLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 14788d98ae6eSLiad Kaufman struct iwl_mvm_tid_data *tid_data = &mvm_sta->tid_data[i]; 14798d98ae6eSLiad Kaufman int txq_id = tid_data->txq_id; 14808d98ae6eSLiad Kaufman int ac; 14818d98ae6eSLiad Kaufman 14826862fceeSSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 14838d98ae6eSLiad Kaufman continue; 14848d98ae6eSLiad Kaufman 14858d98ae6eSLiad Kaufman ac = tid_to_mac80211_ac[i]; 14868d98ae6eSLiad Kaufman 1487310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1488310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 1489310181ecSSara Sharon "Re-mapping sta %d tid %d\n", 1490310181ecSSara Sharon mvm_sta->sta_id, i); 1491cfbc6c4cSSara Sharon txq_id = iwl_mvm_tvqm_enable_txq(mvm, mvm_sta->sta_id, 1492cfbc6c4cSSara Sharon i, wdg); 149391cf5dedSJohannes Berg /* 149491cf5dedSJohannes Berg * on failures, just set it to IWL_MVM_INVALID_QUEUE 149591cf5dedSJohannes Berg * to try again later, we have no other good way of 149691cf5dedSJohannes Berg * failing here 149791cf5dedSJohannes Berg */ 149891cf5dedSJohannes Berg if (txq_id < 0) 149991cf5dedSJohannes Berg txq_id = IWL_MVM_INVALID_QUEUE; 1500310181ecSSara Sharon tid_data->txq_id = txq_id; 15015d39051aSLiad Kaufman 15025d39051aSLiad Kaufman /* 15035d39051aSLiad Kaufman * Since we don't set the seq number after reset, and HW 15045d39051aSLiad Kaufman * sets it now, FW reset will cause the seq num to start 15055d39051aSLiad Kaufman * at 0 again, so driver will need to update it 15065d39051aSLiad Kaufman * internally as well, so it keeps in sync with real val 15075d39051aSLiad Kaufman */ 15085d39051aSLiad Kaufman tid_data->seq_number = 0; 1509310181ecSSara Sharon } else { 1510310181ecSSara Sharon u16 seq = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 1511310181ecSSara Sharon 15128d98ae6eSLiad Kaufman cfg.tid = i; 1513cf6c6ea3SEmmanuel Grumbach cfg.fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac); 15148d98ae6eSLiad Kaufman cfg.aggregate = (txq_id >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1515310181ecSSara Sharon txq_id == 1516310181ecSSara Sharon IWL_MVM_DQA_BSS_CLIENT_QUEUE); 15178d98ae6eSLiad Kaufman 15188d98ae6eSLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 15198d98ae6eSLiad Kaufman "Re-mapping sta %d tid %d to queue %d\n", 15208d98ae6eSLiad Kaufman mvm_sta->sta_id, i, txq_id); 15218d98ae6eSLiad Kaufman 1522cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, txq_id, seq, &cfg, wdg); 15238d98ae6eSLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_READY; 15248d98ae6eSLiad Kaufman } 152534e10860SSara Sharon } 15268d98ae6eSLiad Kaufman } 15278d98ae6eSLiad Kaufman 1528732d06e9SShaul Triebitz static int iwl_mvm_add_int_sta_common(struct iwl_mvm *mvm, 1529732d06e9SShaul Triebitz struct iwl_mvm_int_sta *sta, 1530732d06e9SShaul Triebitz const u8 *addr, 1531732d06e9SShaul Triebitz u16 mac_id, u16 color) 1532732d06e9SShaul Triebitz { 1533732d06e9SShaul Triebitz struct iwl_mvm_add_sta_cmd cmd; 1534732d06e9SShaul Triebitz int ret; 15353f497de9SLuca Coelho u32 status = ADD_STA_SUCCESS; 1536732d06e9SShaul Triebitz 1537732d06e9SShaul Triebitz lockdep_assert_held(&mvm->mutex); 1538732d06e9SShaul Triebitz 1539732d06e9SShaul Triebitz memset(&cmd, 0, sizeof(cmd)); 1540732d06e9SShaul Triebitz cmd.sta_id = sta->sta_id; 15412c2c3647SNathan Errera 1542971cbe50SJohannes Berg if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) >= 12 && 15432c2c3647SNathan Errera sta->type == IWL_STA_AUX_ACTIVITY) 15442c2c3647SNathan Errera cmd.mac_id_n_color = cpu_to_le32(mac_id); 15452c2c3647SNathan Errera else 1546732d06e9SShaul Triebitz cmd.mac_id_n_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mac_id, 1547732d06e9SShaul Triebitz color)); 15482c2c3647SNathan Errera 1549732d06e9SShaul Triebitz if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 1550732d06e9SShaul Triebitz cmd.station_type = sta->type; 1551732d06e9SShaul Triebitz 1552732d06e9SShaul Triebitz if (!iwl_mvm_has_new_tx_api(mvm)) 1553732d06e9SShaul Triebitz cmd.tfd_queue_msk = cpu_to_le32(sta->tfd_queue_msk); 1554732d06e9SShaul Triebitz cmd.tid_disable_tx = cpu_to_le16(0xffff); 1555732d06e9SShaul Triebitz 1556732d06e9SShaul Triebitz if (addr) 1557732d06e9SShaul Triebitz memcpy(cmd.addr, addr, ETH_ALEN); 1558732d06e9SShaul Triebitz 1559732d06e9SShaul Triebitz ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1560732d06e9SShaul Triebitz iwl_mvm_add_sta_cmd_size(mvm), 1561732d06e9SShaul Triebitz &cmd, &status); 1562732d06e9SShaul Triebitz if (ret) 1563732d06e9SShaul Triebitz return ret; 1564732d06e9SShaul Triebitz 1565732d06e9SShaul Triebitz switch (status & IWL_ADD_STA_STATUS_MASK) { 1566732d06e9SShaul Triebitz case ADD_STA_SUCCESS: 1567732d06e9SShaul Triebitz IWL_DEBUG_INFO(mvm, "Internal station added.\n"); 1568732d06e9SShaul Triebitz return 0; 1569732d06e9SShaul Triebitz default: 1570732d06e9SShaul Triebitz ret = -EIO; 1571732d06e9SShaul Triebitz IWL_ERR(mvm, "Add internal station failed, status=0x%x\n", 1572732d06e9SShaul Triebitz status); 1573732d06e9SShaul Triebitz break; 1574732d06e9SShaul Triebitz } 1575732d06e9SShaul Triebitz return ret; 1576732d06e9SShaul Triebitz } 1577732d06e9SShaul Triebitz 1578e705c121SKalle Valo int iwl_mvm_add_sta(struct iwl_mvm *mvm, 1579e705c121SKalle Valo struct ieee80211_vif *vif, 1580e705c121SKalle Valo struct ieee80211_sta *sta) 1581e705c121SKalle Valo { 1582e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1583e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1584a571f5f6SSara Sharon struct iwl_mvm_rxq_dup_data *dup_data; 1585e705c121SKalle Valo int i, ret, sta_id; 1586732d06e9SShaul Triebitz bool sta_update = false; 1587732d06e9SShaul Triebitz unsigned int sta_flags = 0; 1588e705c121SKalle Valo 1589e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1590e705c121SKalle Valo 1591e705c121SKalle Valo if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1592e705c121SKalle Valo sta_id = iwl_mvm_find_free_sta_id(mvm, 1593e705c121SKalle Valo ieee80211_vif_type_p2p(vif)); 1594e705c121SKalle Valo else 1595e705c121SKalle Valo sta_id = mvm_sta->sta_id; 1596e705c121SKalle Valo 15970ae98812SSara Sharon if (sta_id == IWL_MVM_INVALID_STA) 1598e705c121SKalle Valo return -ENOSPC; 1599e705c121SKalle Valo 1600e705c121SKalle Valo spin_lock_init(&mvm_sta->lock); 1601e705c121SKalle Valo 1602c8f54701SJohannes Berg /* if this is a HW restart re-alloc existing queues */ 1603c8f54701SJohannes Berg if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1604732d06e9SShaul Triebitz struct iwl_mvm_int_sta tmp_sta = { 1605732d06e9SShaul Triebitz .sta_id = sta_id, 1606732d06e9SShaul Triebitz .type = mvm_sta->sta_type, 1607732d06e9SShaul Triebitz }; 1608732d06e9SShaul Triebitz 1609732d06e9SShaul Triebitz /* 1610732d06e9SShaul Triebitz * First add an empty station since allocating 1611732d06e9SShaul Triebitz * a queue requires a valid station 1612732d06e9SShaul Triebitz */ 1613732d06e9SShaul Triebitz ret = iwl_mvm_add_int_sta_common(mvm, &tmp_sta, sta->addr, 1614732d06e9SShaul Triebitz mvmvif->id, mvmvif->color); 1615732d06e9SShaul Triebitz if (ret) 1616732d06e9SShaul Triebitz goto err; 1617732d06e9SShaul Triebitz 1618cfbc6c4cSSara Sharon iwl_mvm_realloc_queues_after_restart(mvm, sta); 1619732d06e9SShaul Triebitz sta_update = true; 1620732d06e9SShaul Triebitz sta_flags = iwl_mvm_has_new_tx_api(mvm) ? 0 : STA_MODIFY_QUEUES; 16218d98ae6eSLiad Kaufman goto update_fw; 16228d98ae6eSLiad Kaufman } 16238d98ae6eSLiad Kaufman 1624e705c121SKalle Valo mvm_sta->sta_id = sta_id; 1625e705c121SKalle Valo mvm_sta->mac_id_n_color = FW_CMD_ID_AND_COLOR(mvmvif->id, 1626e705c121SKalle Valo mvmvif->color); 1627e705c121SKalle Valo mvm_sta->vif = vif; 1628286ca8ebSLuca Coelho if (!mvm->trans->trans_cfg->gen2) 1629e705c121SKalle Valo mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_DEF; 1630a58bb468SLiad Kaufman else 1631a58bb468SLiad Kaufman mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF; 1632e705c121SKalle Valo mvm_sta->tx_protection = 0; 1633e705c121SKalle Valo mvm_sta->tt_tx_protection = false; 1634ced19f26SSara Sharon mvm_sta->sta_type = sta->tdls ? IWL_STA_TDLS_LINK : IWL_STA_LINK; 1635e705c121SKalle Valo 1636e705c121SKalle Valo /* HW restart, don't assume the memory has been zeroed */ 1637e705c121SKalle Valo mvm_sta->tid_disable_agg = 0xffff; /* No aggs at first */ 1638e705c121SKalle Valo mvm_sta->tfd_queue_msk = 0; 1639e705c121SKalle Valo 1640e705c121SKalle Valo /* for HW restart - reset everything but the sequence number */ 164124afba76SLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 1642e705c121SKalle Valo u16 seq = mvm_sta->tid_data[i].seq_number; 1643e705c121SKalle Valo memset(&mvm_sta->tid_data[i], 0, sizeof(mvm_sta->tid_data[i])); 1644e705c121SKalle Valo mvm_sta->tid_data[i].seq_number = seq; 164524afba76SLiad Kaufman 164624afba76SLiad Kaufman /* 164724afba76SLiad Kaufman * Mark all queues for this STA as unallocated and defer TX 164824afba76SLiad Kaufman * frames until the queue is allocated 164924afba76SLiad Kaufman */ 16506862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 1651e705c121SKalle Valo } 1652cfbc6c4cSSara Sharon 1653cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1654cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1655cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1656cfbc6c4cSSara Sharon 1657cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 1658cfbc6c4cSSara Sharon INIT_LIST_HEAD(&mvmtxq->list); 1659fba8248eSSara Sharon atomic_set(&mvmtxq->tx_request, 0); 1660cfbc6c4cSSara Sharon } 1661cfbc6c4cSSara Sharon 1662e705c121SKalle Valo mvm_sta->agg_tids = 0; 1663e705c121SKalle Valo 1664a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && 1665a571f5f6SSara Sharon !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 166692c4dca6SJohannes Berg int q; 166792c4dca6SJohannes Berg 1668a571f5f6SSara Sharon dup_data = kcalloc(mvm->trans->num_rx_queues, 166992c4dca6SJohannes Berg sizeof(*dup_data), GFP_KERNEL); 1670a571f5f6SSara Sharon if (!dup_data) 1671a571f5f6SSara Sharon return -ENOMEM; 167292c4dca6SJohannes Berg /* 167392c4dca6SJohannes Berg * Initialize all the last_seq values to 0xffff which can never 167492c4dca6SJohannes Berg * compare equal to the frame's seq_ctrl in the check in 167592c4dca6SJohannes Berg * iwl_mvm_is_dup() since the lower 4 bits are the fragment 167692c4dca6SJohannes Berg * number and fragmented packets don't reach that function. 167792c4dca6SJohannes Berg * 167892c4dca6SJohannes Berg * This thus allows receiving a packet with seqno 0 and the 167992c4dca6SJohannes Berg * retry bit set as the very first packet on a new TID. 168092c4dca6SJohannes Berg */ 168192c4dca6SJohannes Berg for (q = 0; q < mvm->trans->num_rx_queues; q++) 168292c4dca6SJohannes Berg memset(dup_data[q].last_seq, 0xff, 168392c4dca6SJohannes Berg sizeof(dup_data[q].last_seq)); 1684a571f5f6SSara Sharon mvm_sta->dup_data = dup_data; 1685a571f5f6SSara Sharon } 1686a571f5f6SSara Sharon 1687c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 1688d5216a28SLiad Kaufman ret = iwl_mvm_reserve_sta_stream(mvm, sta, 1689d5216a28SLiad Kaufman ieee80211_vif_type_p2p(vif)); 169024afba76SLiad Kaufman if (ret) 169124afba76SLiad Kaufman goto err; 169224afba76SLiad Kaufman } 169324afba76SLiad Kaufman 16949f66a397SGregory Greenman /* 16959f66a397SGregory Greenman * if rs is registered with mac80211, then "add station" will be handled 16969f66a397SGregory Greenman * via the corresponding ops, otherwise need to notify rate scaling here 16979f66a397SGregory Greenman */ 16984243edb4SEmmanuel Grumbach if (iwl_mvm_has_tlc_offload(mvm)) 16999f66a397SGregory Greenman iwl_mvm_rs_add_sta(mvm, mvm_sta); 17000f8084cdSMordechay Goodstein else 1701f5d88fa3SGregory Greenman spin_lock_init(&mvm_sta->lq_sta.rs_drv.pers.lock); 17029f66a397SGregory Greenman 17030dde2440SAvraham Stern iwl_mvm_toggle_tx_ant(mvm, &mvm_sta->tx_ant); 17040dde2440SAvraham Stern 17058d98ae6eSLiad Kaufman update_fw: 1706732d06e9SShaul Triebitz ret = iwl_mvm_sta_send_to_fw(mvm, sta, sta_update, sta_flags); 1707e705c121SKalle Valo if (ret) 1708e705c121SKalle Valo goto err; 1709e705c121SKalle Valo 1710e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) { 1711e705c121SKalle Valo if (!sta->tdls) { 17120ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id != IWL_MVM_INVALID_STA); 1713e705c121SKalle Valo mvmvif->ap_sta_id = sta_id; 1714e705c121SKalle Valo } else { 17150ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id == IWL_MVM_INVALID_STA); 1716e705c121SKalle Valo } 1717e705c121SKalle Valo } 1718e705c121SKalle Valo 1719e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], sta); 1720e705c121SKalle Valo 1721e705c121SKalle Valo return 0; 1722e705c121SKalle Valo 1723e705c121SKalle Valo err: 1724e705c121SKalle Valo return ret; 1725e705c121SKalle Valo } 1726e705c121SKalle Valo 1727e705c121SKalle Valo int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, 1728e705c121SKalle Valo bool drain) 1729e705c121SKalle Valo { 1730e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 1731e705c121SKalle Valo int ret; 1732e705c121SKalle Valo u32 status; 1733e705c121SKalle Valo 1734e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1735e705c121SKalle Valo 1736e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 1737e705c121SKalle Valo cmd.sta_id = mvmsta->sta_id; 1738e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 1739e705c121SKalle Valo cmd.station_flags = drain ? cpu_to_le32(STA_FLG_DRAIN_FLOW) : 0; 1740e705c121SKalle Valo cmd.station_flags_msk = cpu_to_le32(STA_FLG_DRAIN_FLOW); 1741e705c121SKalle Valo 1742e705c121SKalle Valo status = ADD_STA_SUCCESS; 1743854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1744854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 1745e705c121SKalle Valo &cmd, &status); 1746e705c121SKalle Valo if (ret) 1747e705c121SKalle Valo return ret; 1748e705c121SKalle Valo 1749837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 1750e705c121SKalle Valo case ADD_STA_SUCCESS: 1751e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "Frames for staid %d will drained in fw\n", 1752e705c121SKalle Valo mvmsta->sta_id); 1753e705c121SKalle Valo break; 1754e705c121SKalle Valo default: 1755e705c121SKalle Valo ret = -EIO; 1756e705c121SKalle Valo IWL_ERR(mvm, "Couldn't drain frames for staid %d\n", 1757e705c121SKalle Valo mvmsta->sta_id); 1758e705c121SKalle Valo break; 1759e705c121SKalle Valo } 1760e705c121SKalle Valo 1761e705c121SKalle Valo return ret; 1762e705c121SKalle Valo } 1763e705c121SKalle Valo 1764e705c121SKalle Valo /* 1765e705c121SKalle Valo * Remove a station from the FW table. Before sending the command to remove 1766e705c121SKalle Valo * the station validate that the station is indeed known to the driver (sanity 1767e705c121SKalle Valo * only). 1768e705c121SKalle Valo */ 1769e705c121SKalle Valo static int iwl_mvm_rm_sta_common(struct iwl_mvm *mvm, u8 sta_id) 1770e705c121SKalle Valo { 1771e705c121SKalle Valo struct ieee80211_sta *sta; 1772e705c121SKalle Valo struct iwl_mvm_rm_sta_cmd rm_sta_cmd = { 1773e705c121SKalle Valo .sta_id = sta_id, 1774e705c121SKalle Valo }; 1775e705c121SKalle Valo int ret; 1776e705c121SKalle Valo 1777e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 1778e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1779e705c121SKalle Valo 1780e705c121SKalle Valo /* Note: internal stations are marked as error values */ 1781e705c121SKalle Valo if (!sta) { 1782e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 1783e705c121SKalle Valo return -EINVAL; 1784e705c121SKalle Valo } 1785e705c121SKalle Valo 1786e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, REMOVE_STA, 0, 1787e705c121SKalle Valo sizeof(rm_sta_cmd), &rm_sta_cmd); 1788e705c121SKalle Valo if (ret) { 1789e705c121SKalle Valo IWL_ERR(mvm, "Failed to remove station. Id=%d\n", sta_id); 1790e705c121SKalle Valo return ret; 1791e705c121SKalle Valo } 1792e705c121SKalle Valo 1793e705c121SKalle Valo return 0; 1794e705c121SKalle Valo } 1795e705c121SKalle Valo 179624afba76SLiad Kaufman static void iwl_mvm_disable_sta_queues(struct iwl_mvm *mvm, 179724afba76SLiad Kaufman struct ieee80211_vif *vif, 1798cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 179924afba76SLiad Kaufman { 1800cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 180124afba76SLiad Kaufman int i; 180224afba76SLiad Kaufman 180324afba76SLiad Kaufman lockdep_assert_held(&mvm->mutex); 180424afba76SLiad Kaufman 180524afba76SLiad Kaufman for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 18066862fceeSSara Sharon if (mvm_sta->tid_data[i].txq_id == IWL_MVM_INVALID_QUEUE) 180724afba76SLiad Kaufman continue; 180824afba76SLiad Kaufman 1809c6ce1c74SJohannes Berg iwl_mvm_disable_txq(mvm, sta, &mvm_sta->tid_data[i].txq_id, i, 1810cfbc6c4cSSara Sharon 0); 18116862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 181224afba76SLiad Kaufman } 1813cfbc6c4cSSara Sharon 1814cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1815cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1816cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1817cfbc6c4cSSara Sharon 1818cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 1819cfbc6c4cSSara Sharon } 182024afba76SLiad Kaufman } 182124afba76SLiad Kaufman 1822d6d517b7SSara Sharon int iwl_mvm_wait_sta_queues_empty(struct iwl_mvm *mvm, 1823d6d517b7SSara Sharon struct iwl_mvm_sta *mvm_sta) 1824d6d517b7SSara Sharon { 1825bec9522aSSharon Dvir int i; 1826d6d517b7SSara Sharon 1827d6d517b7SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 1828d6d517b7SSara Sharon u16 txq_id; 1829bec9522aSSharon Dvir int ret; 1830d6d517b7SSara Sharon 1831d6d517b7SSara Sharon spin_lock_bh(&mvm_sta->lock); 1832d6d517b7SSara Sharon txq_id = mvm_sta->tid_data[i].txq_id; 1833d6d517b7SSara Sharon spin_unlock_bh(&mvm_sta->lock); 1834d6d517b7SSara Sharon 1835d6d517b7SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 1836d6d517b7SSara Sharon continue; 1837d6d517b7SSara Sharon 1838d6d517b7SSara Sharon ret = iwl_trans_wait_txq_empty(mvm->trans, txq_id); 1839d6d517b7SSara Sharon if (ret) 1840bec9522aSSharon Dvir return ret; 1841d6d517b7SSara Sharon } 1842d6d517b7SSara Sharon 1843bec9522aSSharon Dvir return 0; 1844d6d517b7SSara Sharon } 1845d6d517b7SSara Sharon 1846e705c121SKalle Valo int iwl_mvm_rm_sta(struct iwl_mvm *mvm, 1847e705c121SKalle Valo struct ieee80211_vif *vif, 1848e705c121SKalle Valo struct ieee80211_sta *sta) 1849e705c121SKalle Valo { 1850e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1851e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 185294c3e614SSara Sharon u8 sta_id = mvm_sta->sta_id; 1853e705c121SKalle Valo int ret; 1854e705c121SKalle Valo 1855e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1856e705c121SKalle Valo 1857a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm)) 1858a571f5f6SSara Sharon kfree(mvm_sta->dup_data); 1859a571f5f6SSara Sharon 1860e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, true); 1861e705c121SKalle Valo if (ret) 1862e705c121SKalle Valo return ret; 1863c8f54701SJohannes Berg 1864e705c121SKalle Valo /* flush its queues here since we are freeing mvm_sta */ 1865f9084775SNathan Errera ret = iwl_mvm_flush_sta(mvm, mvm_sta, false); 1866e705c121SKalle Valo if (ret) 1867e705c121SKalle Valo return ret; 1868d6d517b7SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1869d6d517b7SSara Sharon ret = iwl_mvm_wait_sta_queues_empty(mvm, mvm_sta); 1870d6d517b7SSara Sharon } else { 1871d6d517b7SSara Sharon u32 q_mask = mvm_sta->tfd_queue_msk; 1872d6d517b7SSara Sharon 1873a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 1874d6d517b7SSara Sharon q_mask); 1875d6d517b7SSara Sharon } 1876e705c121SKalle Valo if (ret) 1877e705c121SKalle Valo return ret; 1878c8f54701SJohannes Berg 1879e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, false); 1880e705c121SKalle Valo 1881cfbc6c4cSSara Sharon iwl_mvm_disable_sta_queues(mvm, vif, sta); 188256214749SLiad Kaufman 188356214749SLiad Kaufman /* If there is a TXQ still marked as reserved - free it */ 1884c8f54701SJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) { 1885a0315deaSLiad Kaufman u8 reserved_txq = mvm_sta->reserved_queue; 1886a0315deaSLiad Kaufman enum iwl_mvm_queue_status *status; 1887a0315deaSLiad Kaufman 1888a0315deaSLiad Kaufman /* 1889a0315deaSLiad Kaufman * If no traffic has gone through the reserved TXQ - it 1890a0315deaSLiad Kaufman * is still marked as IWL_MVM_QUEUE_RESERVED, and 1891a0315deaSLiad Kaufman * should be manually marked as free again 1892a0315deaSLiad Kaufman */ 1893a0315deaSLiad Kaufman status = &mvm->queue_info[reserved_txq].status; 1894a0315deaSLiad Kaufman if (WARN((*status != IWL_MVM_QUEUE_RESERVED) && 1895a0315deaSLiad Kaufman (*status != IWL_MVM_QUEUE_FREE), 1896a0315deaSLiad Kaufman "sta_id %d reserved txq %d status %d", 1897f3f240f9SJohannes Berg sta_id, reserved_txq, *status)) 1898a0315deaSLiad Kaufman return -EINVAL; 1899a0315deaSLiad Kaufman 1900a0315deaSLiad Kaufman *status = IWL_MVM_QUEUE_FREE; 1901a0315deaSLiad Kaufman } 1902a0315deaSLiad Kaufman 1903e3118ad7SLiad Kaufman if (vif->type == NL80211_IFTYPE_STATION && 190494c3e614SSara Sharon mvmvif->ap_sta_id == sta_id) { 1905e3118ad7SLiad Kaufman /* if associated - we can't remove the AP STA now */ 1906e705c121SKalle Valo if (vif->bss_conf.assoc) 1907e705c121SKalle Valo return ret; 1908e705c121SKalle Valo 1909e705c121SKalle Valo /* unassoc - go ahead - remove the AP STA now */ 19100ae98812SSara Sharon mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1911e705c121SKalle Valo } 1912e705c121SKalle Valo 1913e705c121SKalle Valo /* 1914e705c121SKalle Valo * This shouldn't happen - the TDLS channel switch should be canceled 1915e705c121SKalle Valo * before the STA is removed. 1916e705c121SKalle Valo */ 191794c3e614SSara Sharon if (WARN_ON_ONCE(mvm->tdls_cs.peer.sta_id == sta_id)) { 19180ae98812SSara Sharon mvm->tdls_cs.peer.sta_id = IWL_MVM_INVALID_STA; 1919e705c121SKalle Valo cancel_delayed_work(&mvm->tdls_cs.dwork); 1920e705c121SKalle Valo } 1921e705c121SKalle Valo 1922e705c121SKalle Valo /* 1923e705c121SKalle Valo * Make sure that the tx response code sees the station as -EBUSY and 1924e705c121SKalle Valo * calls the drain worker. 1925e705c121SKalle Valo */ 1926e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 1927e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 1928e705c121SKalle Valo 1929e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvm_sta->sta_id); 1930e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[mvm_sta->sta_id], NULL); 1931e705c121SKalle Valo 1932e705c121SKalle Valo return ret; 1933e705c121SKalle Valo } 1934e705c121SKalle Valo 1935e705c121SKalle Valo int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm, 1936e705c121SKalle Valo struct ieee80211_vif *vif, 1937e705c121SKalle Valo u8 sta_id) 1938e705c121SKalle Valo { 1939e705c121SKalle Valo int ret = iwl_mvm_rm_sta_common(mvm, sta_id); 1940e705c121SKalle Valo 1941e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1942e705c121SKalle Valo 1943e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], NULL); 1944e705c121SKalle Valo return ret; 1945e705c121SKalle Valo } 1946e705c121SKalle Valo 19470e39eb03SChaya Rachel Ivgi int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, 1948e705c121SKalle Valo struct iwl_mvm_int_sta *sta, 1949ced19f26SSara Sharon u32 qmask, enum nl80211_iftype iftype, 1950ced19f26SSara Sharon enum iwl_sta_type type) 1951e705c121SKalle Valo { 1952df65c8d1SAvraham Stern if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1953df65c8d1SAvraham Stern sta->sta_id == IWL_MVM_INVALID_STA) { 1954e705c121SKalle Valo sta->sta_id = iwl_mvm_find_free_sta_id(mvm, iftype); 19550ae98812SSara Sharon if (WARN_ON_ONCE(sta->sta_id == IWL_MVM_INVALID_STA)) 1956e705c121SKalle Valo return -ENOSPC; 1957e705c121SKalle Valo } 1958e705c121SKalle Valo 1959e705c121SKalle Valo sta->tfd_queue_msk = qmask; 1960ced19f26SSara Sharon sta->type = type; 1961e705c121SKalle Valo 1962e705c121SKalle Valo /* put a non-NULL value so iterating over the stations won't stop */ 1963e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta->sta_id], ERR_PTR(-EINVAL)); 1964e705c121SKalle Valo return 0; 1965e705c121SKalle Valo } 1966e705c121SKalle Valo 196726d6c16bSSara Sharon void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta) 1968e705c121SKalle Valo { 1969e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta->sta_id], NULL); 1970e705c121SKalle Valo memset(sta, 0, sizeof(struct iwl_mvm_int_sta)); 19710ae98812SSara Sharon sta->sta_id = IWL_MVM_INVALID_STA; 1972e705c121SKalle Valo } 1973e705c121SKalle Valo 197491cf5dedSJohannes Berg static void iwl_mvm_enable_aux_snif_queue(struct iwl_mvm *mvm, u16 queue, 1975b13f43a4SEmmanuel Grumbach u8 sta_id, u8 fifo) 1976e705c121SKalle Valo { 19779617040eSEmmanuel Grumbach unsigned int wdg_timeout = 19789617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout; 197928d0793eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 1980b13f43a4SEmmanuel Grumbach .fifo = fifo, 1981b13f43a4SEmmanuel Grumbach .sta_id = sta_id, 198228d0793eSLiad Kaufman .tid = IWL_MAX_TID_COUNT, 198328d0793eSLiad Kaufman .aggregate = false, 198428d0793eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 198528d0793eSLiad Kaufman }; 198628d0793eSLiad Kaufman 198791cf5dedSJohannes Berg WARN_ON(iwl_mvm_has_new_tx_api(mvm)); 198891cf5dedSJohannes Berg 198991cf5dedSJohannes Berg iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 199028d0793eSLiad Kaufman } 199191cf5dedSJohannes Berg 199291cf5dedSJohannes Berg static int iwl_mvm_enable_aux_snif_queue_tvqm(struct iwl_mvm *mvm, u8 sta_id) 199391cf5dedSJohannes Berg { 19949617040eSEmmanuel Grumbach unsigned int wdg_timeout = 19959617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout; 199691cf5dedSJohannes Berg 199791cf5dedSJohannes Berg WARN_ON(!iwl_mvm_has_new_tx_api(mvm)); 199891cf5dedSJohannes Berg 199991cf5dedSJohannes Berg return iwl_mvm_tvqm_enable_txq(mvm, sta_id, IWL_MAX_TID_COUNT, 200091cf5dedSJohannes Berg wdg_timeout); 200191cf5dedSJohannes Berg } 200291cf5dedSJohannes Berg 200391cf5dedSJohannes Berg static int iwl_mvm_add_int_sta_with_queue(struct iwl_mvm *mvm, int macidx, 2004be82ecd3SAvraham Stern int maccolor, u8 *addr, 200591cf5dedSJohannes Berg struct iwl_mvm_int_sta *sta, 200691cf5dedSJohannes Berg u16 *queue, int fifo) 200791cf5dedSJohannes Berg { 200891cf5dedSJohannes Berg int ret; 200991cf5dedSJohannes Berg 201091cf5dedSJohannes Berg /* Map queue to fifo - needs to happen before adding station */ 201191cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) 201291cf5dedSJohannes Berg iwl_mvm_enable_aux_snif_queue(mvm, *queue, sta->sta_id, fifo); 201391cf5dedSJohannes Berg 2014be82ecd3SAvraham Stern ret = iwl_mvm_add_int_sta_common(mvm, sta, addr, macidx, maccolor); 201591cf5dedSJohannes Berg if (ret) { 201691cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) 2017c6ce1c74SJohannes Berg iwl_mvm_disable_txq(mvm, NULL, queue, 201891cf5dedSJohannes Berg IWL_MAX_TID_COUNT, 0); 201991cf5dedSJohannes Berg return ret; 202091cf5dedSJohannes Berg } 202191cf5dedSJohannes Berg 202291cf5dedSJohannes Berg /* 202391cf5dedSJohannes Berg * For 22000 firmware and on we cannot add queue to a station unknown 202491cf5dedSJohannes Berg * to firmware so enable queue here - after the station was added 202591cf5dedSJohannes Berg */ 202691cf5dedSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) { 202791cf5dedSJohannes Berg int txq; 202891cf5dedSJohannes Berg 202991cf5dedSJohannes Berg txq = iwl_mvm_enable_aux_snif_queue_tvqm(mvm, sta->sta_id); 203091cf5dedSJohannes Berg if (txq < 0) { 203191cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, sta->sta_id); 203291cf5dedSJohannes Berg return txq; 203391cf5dedSJohannes Berg } 203491cf5dedSJohannes Berg 203591cf5dedSJohannes Berg *queue = txq; 203691cf5dedSJohannes Berg } 203791cf5dedSJohannes Berg 203891cf5dedSJohannes Berg return 0; 2039c5a719eeSSara Sharon } 2040c5a719eeSSara Sharon 20412c2c3647SNathan Errera int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm, u32 lmac_id) 2042c5a719eeSSara Sharon { 2043c5a719eeSSara Sharon int ret; 2044c5a719eeSSara Sharon 2045c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2046c5a719eeSSara Sharon 2047c5a719eeSSara Sharon /* Allocate aux station and assign to it the aux queue */ 2048c5a719eeSSara Sharon ret = iwl_mvm_allocate_int_sta(mvm, &mvm->aux_sta, BIT(mvm->aux_queue), 2049ced19f26SSara Sharon NL80211_IFTYPE_UNSPECIFIED, 2050ced19f26SSara Sharon IWL_STA_AUX_ACTIVITY); 2051c5a719eeSSara Sharon if (ret) 2052c5a719eeSSara Sharon return ret; 2053c5a719eeSSara Sharon 20542c2c3647SNathan Errera /* 20552c2c3647SNathan Errera * In CDB NICs we need to specify which lmac to use for aux activity 20562c2c3647SNathan Errera * using the mac_id argument place to send lmac_id to the function 20572c2c3647SNathan Errera */ 20582c2c3647SNathan Errera ret = iwl_mvm_add_int_sta_with_queue(mvm, lmac_id, 0, NULL, 205991cf5dedSJohannes Berg &mvm->aux_sta, &mvm->aux_queue, 2060b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_MCAST); 2061c5a719eeSSara Sharon if (ret) { 2062e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2063e705c121SKalle Valo return ret; 2064e705c121SKalle Valo } 2065e705c121SKalle Valo 2066c5a719eeSSara Sharon return 0; 2067c5a719eeSSara Sharon } 2068c5a719eeSSara Sharon 20690e39eb03SChaya Rachel Ivgi int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 20700e39eb03SChaya Rachel Ivgi { 20710e39eb03SChaya Rachel Ivgi struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 20720e39eb03SChaya Rachel Ivgi 20730e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 2074b13f43a4SEmmanuel Grumbach 207591cf5dedSJohannes Berg return iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id, mvmvif->color, 2076be82ecd3SAvraham Stern NULL, &mvm->snif_sta, 2077be82ecd3SAvraham Stern &mvm->snif_queue, 2078b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_BE); 20790e39eb03SChaya Rachel Ivgi } 20800e39eb03SChaya Rachel Ivgi 20810e39eb03SChaya Rachel Ivgi int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 20820e39eb03SChaya Rachel Ivgi { 20830e39eb03SChaya Rachel Ivgi int ret; 20840e39eb03SChaya Rachel Ivgi 20850e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 20860e39eb03SChaya Rachel Ivgi 2087e223e42aSGregory Greenman if (WARN_ON_ONCE(mvm->snif_sta.sta_id == IWL_MVM_INVALID_STA)) 2088e223e42aSGregory Greenman return -EINVAL; 2089e223e42aSGregory Greenman 2090c6ce1c74SJohannes Berg iwl_mvm_disable_txq(mvm, NULL, &mvm->snif_queue, IWL_MAX_TID_COUNT, 0); 20910e39eb03SChaya Rachel Ivgi ret = iwl_mvm_rm_sta_common(mvm, mvm->snif_sta.sta_id); 20920e39eb03SChaya Rachel Ivgi if (ret) 20930e39eb03SChaya Rachel Ivgi IWL_WARN(mvm, "Failed sending remove station\n"); 20940e39eb03SChaya Rachel Ivgi 20950e39eb03SChaya Rachel Ivgi return ret; 20960e39eb03SChaya Rachel Ivgi } 20970e39eb03SChaya Rachel Ivgi 2098f327236dSSharon int iwl_mvm_rm_aux_sta(struct iwl_mvm *mvm) 2099f327236dSSharon { 2100f327236dSSharon int ret; 2101f327236dSSharon 2102f327236dSSharon lockdep_assert_held(&mvm->mutex); 2103f327236dSSharon 2104e223e42aSGregory Greenman if (WARN_ON_ONCE(mvm->aux_sta.sta_id == IWL_MVM_INVALID_STA)) 2105e223e42aSGregory Greenman return -EINVAL; 2106e223e42aSGregory Greenman 2107c6ce1c74SJohannes Berg iwl_mvm_disable_txq(mvm, NULL, &mvm->aux_queue, IWL_MAX_TID_COUNT, 0); 2108f327236dSSharon ret = iwl_mvm_rm_sta_common(mvm, mvm->aux_sta.sta_id); 2109f327236dSSharon if (ret) 2110f327236dSSharon IWL_WARN(mvm, "Failed sending remove station\n"); 2111f327236dSSharon iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2112f327236dSSharon 2113f327236dSSharon return ret; 2114f327236dSSharon } 2115f327236dSSharon 21160e39eb03SChaya Rachel Ivgi void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm) 21170e39eb03SChaya Rachel Ivgi { 21180e39eb03SChaya Rachel Ivgi iwl_mvm_dealloc_int_sta(mvm, &mvm->snif_sta); 21190e39eb03SChaya Rachel Ivgi } 21200e39eb03SChaya Rachel Ivgi 2121e705c121SKalle Valo /* 2122e705c121SKalle Valo * Send the add station command for the vif's broadcast station. 2123e705c121SKalle Valo * Assumes that the station was already allocated. 2124e705c121SKalle Valo * 2125e705c121SKalle Valo * @mvm: the mvm component 2126e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2127e705c121SKalle Valo * @bsta: the broadcast station to add. 2128e705c121SKalle Valo */ 2129e705c121SKalle Valo int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2130e705c121SKalle Valo { 2131e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2132e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 2133e705c121SKalle Valo static const u8 _baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; 2134e705c121SKalle Valo const u8 *baddr = _baddr; 21357daa7624SJohannes Berg int queue; 2136df88c08dSLiad Kaufman int ret; 2137c5a719eeSSara Sharon unsigned int wdg_timeout = 2138c5a719eeSSara Sharon iwl_mvm_get_wd_timeout(mvm, vif, false, false); 2139de24f638SLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 2140de24f638SLiad Kaufman .fifo = IWL_MVM_TX_FIFO_VO, 2141de24f638SLiad Kaufman .sta_id = mvmvif->bcast_sta.sta_id, 2142de24f638SLiad Kaufman .tid = IWL_MAX_TID_COUNT, 2143de24f638SLiad Kaufman .aggregate = false, 2144de24f638SLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 2145de24f638SLiad Kaufman }; 2146de24f638SLiad Kaufman 2147c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2148c5a719eeSSara Sharon 2149c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 21504d339989SLiad Kaufman if (vif->type == NL80211_IFTYPE_AP || 2151f8510d67SNathan Chancellor vif->type == NL80211_IFTYPE_ADHOC) { 215249f71713SSara Sharon queue = mvm->probe_queue; 2153f8510d67SNathan Chancellor } else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 215449f71713SSara Sharon queue = mvm->p2p_dev_queue; 2155f8510d67SNathan Chancellor } else { 2156f8510d67SNathan Chancellor WARN(1, "Missing required TXQ for adding bcast STA\n"); 2157de24f638SLiad Kaufman return -EINVAL; 2158f8510d67SNathan Chancellor } 2159de24f638SLiad Kaufman 2160df88c08dSLiad Kaufman bsta->tfd_queue_msk |= BIT(queue); 2161c5a719eeSSara Sharon 2162cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 2163de24f638SLiad Kaufman } 2164de24f638SLiad Kaufman 2165e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_ADHOC) 2166e705c121SKalle Valo baddr = vif->bss_conf.bssid; 2167e705c121SKalle Valo 21680ae98812SSara Sharon if (WARN_ON_ONCE(bsta->sta_id == IWL_MVM_INVALID_STA)) 2169e705c121SKalle Valo return -ENOSPC; 2170e705c121SKalle Valo 2171df88c08dSLiad Kaufman ret = iwl_mvm_add_int_sta_common(mvm, bsta, baddr, 2172e705c121SKalle Valo mvmvif->id, mvmvif->color); 2173df88c08dSLiad Kaufman if (ret) 2174df88c08dSLiad Kaufman return ret; 2175df88c08dSLiad Kaufman 2176df88c08dSLiad Kaufman /* 21772f7a3863SLuca Coelho * For 22000 firmware and on we cannot add queue to a station unknown 2178c5a719eeSSara Sharon * to firmware so enable queue here - after the station was added 2179df88c08dSLiad Kaufman */ 2180310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 2181cfbc6c4cSSara Sharon queue = iwl_mvm_tvqm_enable_txq(mvm, bsta->sta_id, 2182310181ecSSara Sharon IWL_MAX_TID_COUNT, 2183c5a719eeSSara Sharon wdg_timeout); 218491cf5dedSJohannes Berg if (queue < 0) { 218591cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, bsta->sta_id); 218691cf5dedSJohannes Berg return queue; 218791cf5dedSJohannes Berg } 21887daa7624SJohannes Berg 21897b758a11SLuca Coelho if (vif->type == NL80211_IFTYPE_AP || 21907b758a11SLuca Coelho vif->type == NL80211_IFTYPE_ADHOC) 2191310181ecSSara Sharon mvm->probe_queue = queue; 2192310181ecSSara Sharon else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 2193310181ecSSara Sharon mvm->p2p_dev_queue = queue; 2194310181ecSSara Sharon } 2195df88c08dSLiad Kaufman 2196df88c08dSLiad Kaufman return 0; 2197df88c08dSLiad Kaufman } 2198df88c08dSLiad Kaufman 2199df88c08dSLiad Kaufman static void iwl_mvm_free_bcast_sta_queues(struct iwl_mvm *mvm, 2200df88c08dSLiad Kaufman struct ieee80211_vif *vif) 2201df88c08dSLiad Kaufman { 2202df88c08dSLiad Kaufman struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2203c6ce1c74SJohannes Berg u16 *queueptr, queue; 2204df88c08dSLiad Kaufman 2205df88c08dSLiad Kaufman lockdep_assert_held(&mvm->mutex); 2206df88c08dSLiad Kaufman 2207f9084775SNathan Errera iwl_mvm_flush_sta(mvm, &mvmvif->bcast_sta, true); 2208d49394a1SSara Sharon 2209d167e81aSMordechai Goodstein switch (vif->type) { 2210d167e81aSMordechai Goodstein case NL80211_IFTYPE_AP: 2211d167e81aSMordechai Goodstein case NL80211_IFTYPE_ADHOC: 2212c6ce1c74SJohannes Berg queueptr = &mvm->probe_queue; 2213d167e81aSMordechai Goodstein break; 2214d167e81aSMordechai Goodstein case NL80211_IFTYPE_P2P_DEVICE: 2215c6ce1c74SJohannes Berg queueptr = &mvm->p2p_dev_queue; 2216d167e81aSMordechai Goodstein break; 2217d167e81aSMordechai Goodstein default: 2218d167e81aSMordechai Goodstein WARN(1, "Can't free bcast queue on vif type %d\n", 2219d167e81aSMordechai Goodstein vif->type); 2220d167e81aSMordechai Goodstein return; 2221df88c08dSLiad Kaufman } 2222df88c08dSLiad Kaufman 2223c6ce1c74SJohannes Berg queue = *queueptr; 2224c6ce1c74SJohannes Berg iwl_mvm_disable_txq(mvm, NULL, queueptr, IWL_MAX_TID_COUNT, 0); 2225d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) 2226d167e81aSMordechai Goodstein return; 2227d167e81aSMordechai Goodstein 2228d167e81aSMordechai Goodstein WARN_ON(!(mvmvif->bcast_sta.tfd_queue_msk & BIT(queue))); 2229d167e81aSMordechai Goodstein mvmvif->bcast_sta.tfd_queue_msk &= ~BIT(queue); 2230e705c121SKalle Valo } 2231e705c121SKalle Valo 2232e705c121SKalle Valo /* Send the FW a request to remove the station from it's internal data 2233e705c121SKalle Valo * structures, but DO NOT remove the entry from the local data structures. */ 2234e705c121SKalle Valo int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2235e705c121SKalle Valo { 2236e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2237e705c121SKalle Valo int ret; 2238e705c121SKalle Valo 2239e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2240e705c121SKalle Valo 2241df88c08dSLiad Kaufman iwl_mvm_free_bcast_sta_queues(mvm, vif); 2242df88c08dSLiad Kaufman 2243e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvmvif->bcast_sta.sta_id); 2244e705c121SKalle Valo if (ret) 2245e705c121SKalle Valo IWL_WARN(mvm, "Failed sending remove station\n"); 2246e705c121SKalle Valo return ret; 2247e705c121SKalle Valo } 2248e705c121SKalle Valo 2249e705c121SKalle Valo int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2250e705c121SKalle Valo { 2251e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2252e705c121SKalle Valo 2253e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2254e705c121SKalle Valo 2255c8f54701SJohannes Berg return iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, 0, 2256ced19f26SSara Sharon ieee80211_vif_type_p2p(vif), 2257ced19f26SSara Sharon IWL_STA_GENERAL_PURPOSE); 2258e705c121SKalle Valo } 2259e705c121SKalle Valo 2260e705c121SKalle Valo /* Allocate a new station entry for the broadcast station to the given vif, 2261e705c121SKalle Valo * and send it to the FW. 2262e705c121SKalle Valo * Note that each P2P mac should have its own broadcast station. 2263e705c121SKalle Valo * 2264e705c121SKalle Valo * @mvm: the mvm component 2265e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2266e705c121SKalle Valo * @bsta: the broadcast station to add. */ 2267d197358bSLuca Coelho int iwl_mvm_add_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2268e705c121SKalle Valo { 2269e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2270e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 2271e705c121SKalle Valo int ret; 2272e705c121SKalle Valo 2273e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2274e705c121SKalle Valo 2275e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 2276e705c121SKalle Valo if (ret) 2277e705c121SKalle Valo return ret; 2278e705c121SKalle Valo 2279e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2280e705c121SKalle Valo 2281e705c121SKalle Valo if (ret) 2282e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, bsta); 2283e705c121SKalle Valo 2284e705c121SKalle Valo return ret; 2285e705c121SKalle Valo } 2286e705c121SKalle Valo 2287e705c121SKalle Valo void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2288e705c121SKalle Valo { 2289e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2290e705c121SKalle Valo 2291e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta); 2292e705c121SKalle Valo } 2293e705c121SKalle Valo 2294e705c121SKalle Valo /* 2295e705c121SKalle Valo * Send the FW a request to remove the station from it's internal data 2296e705c121SKalle Valo * structures, and in addition remove it from the local data structure. 2297e705c121SKalle Valo */ 2298d197358bSLuca Coelho int iwl_mvm_rm_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2299e705c121SKalle Valo { 2300e705c121SKalle Valo int ret; 2301e705c121SKalle Valo 2302e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2303e705c121SKalle Valo 2304e705c121SKalle Valo ret = iwl_mvm_send_rm_bcast_sta(mvm, vif); 2305e705c121SKalle Valo 2306e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif); 2307e705c121SKalle Valo 2308e705c121SKalle Valo return ret; 2309e705c121SKalle Valo } 2310e705c121SKalle Valo 231126d6c16bSSara Sharon /* 231226d6c16bSSara Sharon * Allocate a new station entry for the multicast station to the given vif, 231326d6c16bSSara Sharon * and send it to the FW. 231426d6c16bSSara Sharon * Note that each AP/GO mac should have its own multicast station. 231526d6c16bSSara Sharon * 231626d6c16bSSara Sharon * @mvm: the mvm component 231726d6c16bSSara Sharon * @vif: the interface to which the multicast station is added 231826d6c16bSSara Sharon */ 231926d6c16bSSara Sharon int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 232026d6c16bSSara Sharon { 232126d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 232226d6c16bSSara Sharon struct iwl_mvm_int_sta *msta = &mvmvif->mcast_sta; 232326d6c16bSSara Sharon static const u8 _maddr[] = {0x03, 0x00, 0x00, 0x00, 0x00, 0x00}; 232426d6c16bSSara Sharon const u8 *maddr = _maddr; 232526d6c16bSSara Sharon struct iwl_trans_txq_scd_cfg cfg = { 2326192a7e1fSJohannes Berg .fifo = vif->type == NL80211_IFTYPE_AP ? 2327192a7e1fSJohannes Berg IWL_MVM_TX_FIFO_MCAST : IWL_MVM_TX_FIFO_BE, 232826d6c16bSSara Sharon .sta_id = msta->sta_id, 23296508de03SIlan Peer .tid = 0, 233026d6c16bSSara Sharon .aggregate = false, 233126d6c16bSSara Sharon .frame_limit = IWL_FRAME_LIMIT, 233226d6c16bSSara Sharon }; 233326d6c16bSSara Sharon unsigned int timeout = iwl_mvm_get_wd_timeout(mvm, vif, false, false); 233426d6c16bSSara Sharon int ret; 233526d6c16bSSara Sharon 233626d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 233726d6c16bSSara Sharon 2338ee48b722SLiad Kaufman if (WARN_ON(vif->type != NL80211_IFTYPE_AP && 2339ee48b722SLiad Kaufman vif->type != NL80211_IFTYPE_ADHOC)) 234026d6c16bSSara Sharon return -ENOTSUPP; 234126d6c16bSSara Sharon 2342ced19f26SSara Sharon /* 2343fc07bd8cSSara Sharon * In IBSS, ieee80211_check_queues() sets the cab_queue to be 2344fc07bd8cSSara Sharon * invalid, so make sure we use the queue we want. 2345fc07bd8cSSara Sharon * Note that this is done here as we want to avoid making DQA 2346fc07bd8cSSara Sharon * changes in mac80211 layer. 2347fc07bd8cSSara Sharon */ 2348cfbc6c4cSSara Sharon if (vif->type == NL80211_IFTYPE_ADHOC) 2349cfbc6c4cSSara Sharon mvmvif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE; 2350fc07bd8cSSara Sharon 2351fc07bd8cSSara Sharon /* 2352ced19f26SSara Sharon * While in previous FWs we had to exclude cab queue from TFD queue 2353ced19f26SSara Sharon * mask, now it is needed as any other queue. 2354ced19f26SSara Sharon */ 2355ced19f26SSara Sharon if (!iwl_mvm_has_new_tx_api(mvm) && 2356ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2357cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, 2358cfbc6c4cSSara Sharon timeout); 2359cfbc6c4cSSara Sharon msta->tfd_queue_msk |= BIT(mvmvif->cab_queue); 2360ced19f26SSara Sharon } 236126d6c16bSSara Sharon ret = iwl_mvm_add_int_sta_common(mvm, msta, maddr, 236226d6c16bSSara Sharon mvmvif->id, mvmvif->color); 236391cf5dedSJohannes Berg if (ret) 236491cf5dedSJohannes Berg goto err; 236526d6c16bSSara Sharon 236626d6c16bSSara Sharon /* 236726d6c16bSSara Sharon * Enable cab queue after the ADD_STA command is sent. 23682f7a3863SLuca Coelho * This is needed for 22000 firmware which won't accept SCD_QUEUE_CFG 2369ced19f26SSara Sharon * command with unknown station id, and for FW that doesn't support 2370ced19f26SSara Sharon * station API since the cab queue is not included in the 2371ced19f26SSara Sharon * tfd_queue_mask. 237226d6c16bSSara Sharon */ 2373310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 2374cfbc6c4cSSara Sharon int queue = iwl_mvm_tvqm_enable_txq(mvm, msta->sta_id, 23756508de03SIlan Peer 0, 237626d6c16bSSara Sharon timeout); 237791cf5dedSJohannes Berg if (queue < 0) { 237891cf5dedSJohannes Berg ret = queue; 237991cf5dedSJohannes Berg goto err; 238091cf5dedSJohannes Berg } 2381e2af3fabSSara Sharon mvmvif->cab_queue = queue; 2382ced19f26SSara Sharon } else if (!fw_has_api(&mvm->fw->ucode_capa, 2383fc07bd8cSSara Sharon IWL_UCODE_TLV_API_STA_TYPE)) 2384cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, 2385cfbc6c4cSSara Sharon timeout); 238626d6c16bSSara Sharon 238726d6c16bSSara Sharon return 0; 238891cf5dedSJohannes Berg err: 238991cf5dedSJohannes Berg iwl_mvm_dealloc_int_sta(mvm, msta); 239091cf5dedSJohannes Berg return ret; 239126d6c16bSSara Sharon } 239226d6c16bSSara Sharon 239328916a16SEmmanuel Grumbach static int __iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, u8 sta_id, 239428916a16SEmmanuel Grumbach struct ieee80211_key_conf *keyconf, 239528916a16SEmmanuel Grumbach bool mcast) 239628916a16SEmmanuel Grumbach { 239728916a16SEmmanuel Grumbach union { 239828916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 239928916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd cmd; 240028916a16SEmmanuel Grumbach } u = {}; 240128916a16SEmmanuel Grumbach bool new_api = fw_has_api(&mvm->fw->ucode_capa, 240228916a16SEmmanuel Grumbach IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 240328916a16SEmmanuel Grumbach __le16 key_flags; 240428916a16SEmmanuel Grumbach int ret, size; 240528916a16SEmmanuel Grumbach u32 status; 240628916a16SEmmanuel Grumbach 240728916a16SEmmanuel Grumbach /* This is a valid situation for GTK removal */ 240828916a16SEmmanuel Grumbach if (sta_id == IWL_MVM_INVALID_STA) 240928916a16SEmmanuel Grumbach return 0; 241028916a16SEmmanuel Grumbach 241128916a16SEmmanuel Grumbach key_flags = cpu_to_le16((keyconf->keyidx << STA_KEY_FLG_KEYID_POS) & 241228916a16SEmmanuel Grumbach STA_KEY_FLG_KEYID_MSK); 241328916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_FLG_NO_ENC | STA_KEY_FLG_WEP_KEY_MAP); 241428916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_NOT_VALID); 241528916a16SEmmanuel Grumbach 241628916a16SEmmanuel Grumbach if (mcast) 241728916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 241828916a16SEmmanuel Grumbach 241928916a16SEmmanuel Grumbach /* 242028916a16SEmmanuel Grumbach * The fields assigned here are in the same location at the start 242128916a16SEmmanuel Grumbach * of the command, so we can do this union trick. 242228916a16SEmmanuel Grumbach */ 242328916a16SEmmanuel Grumbach u.cmd.common.key_flags = key_flags; 242428916a16SEmmanuel Grumbach u.cmd.common.key_offset = keyconf->hw_key_idx; 242528916a16SEmmanuel Grumbach u.cmd.common.sta_id = sta_id; 242628916a16SEmmanuel Grumbach 242728916a16SEmmanuel Grumbach size = new_api ? sizeof(u.cmd) : sizeof(u.cmd_v1); 242828916a16SEmmanuel Grumbach 242928916a16SEmmanuel Grumbach status = ADD_STA_SUCCESS; 243028916a16SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, &u.cmd, 243128916a16SEmmanuel Grumbach &status); 243228916a16SEmmanuel Grumbach 243328916a16SEmmanuel Grumbach switch (status) { 243428916a16SEmmanuel Grumbach case ADD_STA_SUCCESS: 243528916a16SEmmanuel Grumbach IWL_DEBUG_WEP(mvm, "MODIFY_STA: remove sta key passed\n"); 243628916a16SEmmanuel Grumbach break; 243728916a16SEmmanuel Grumbach default: 243828916a16SEmmanuel Grumbach ret = -EIO; 243928916a16SEmmanuel Grumbach IWL_ERR(mvm, "MODIFY_STA: remove sta key failed\n"); 244028916a16SEmmanuel Grumbach break; 244128916a16SEmmanuel Grumbach } 244228916a16SEmmanuel Grumbach 244328916a16SEmmanuel Grumbach return ret; 244428916a16SEmmanuel Grumbach } 244528916a16SEmmanuel Grumbach 244626d6c16bSSara Sharon /* 244726d6c16bSSara Sharon * Send the FW a request to remove the station from it's internal data 244826d6c16bSSara Sharon * structures, and in addition remove it from the local data structure. 244926d6c16bSSara Sharon */ 245026d6c16bSSara Sharon int iwl_mvm_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 245126d6c16bSSara Sharon { 245226d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 245326d6c16bSSara Sharon int ret; 245426d6c16bSSara Sharon 245526d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 245626d6c16bSSara Sharon 2457f9084775SNathan Errera iwl_mvm_flush_sta(mvm, &mvmvif->mcast_sta, true); 2458d49394a1SSara Sharon 2459c6ce1c74SJohannes Berg iwl_mvm_disable_txq(mvm, NULL, &mvmvif->cab_queue, 0, 0); 246026d6c16bSSara Sharon 246126d6c16bSSara Sharon ret = iwl_mvm_rm_sta_common(mvm, mvmvif->mcast_sta.sta_id); 246226d6c16bSSara Sharon if (ret) 246326d6c16bSSara Sharon IWL_WARN(mvm, "Failed sending remove station\n"); 246426d6c16bSSara Sharon 246526d6c16bSSara Sharon return ret; 246626d6c16bSSara Sharon } 246726d6c16bSSara Sharon 2468b915c101SSara Sharon static void iwl_mvm_sync_rxq_del_ba(struct iwl_mvm *mvm, u8 baid) 246910b2b201SSara Sharon { 24705e1688ceSJohannes Berg struct iwl_mvm_delba_data notif = { 24715e1688ceSJohannes Berg .baid = baid, 2472b915c101SSara Sharon }; 24735e1688ceSJohannes Berg 24745e1688ceSJohannes Berg iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_NOTIF_DEL_BA, true, 24755e1688ceSJohannes Berg ¬if, sizeof(notif)); 247610b2b201SSara Sharon }; 247710b2b201SSara Sharon 2478b915c101SSara Sharon static void iwl_mvm_free_reorder(struct iwl_mvm *mvm, 2479b915c101SSara Sharon struct iwl_mvm_baid_data *data) 2480b915c101SSara Sharon { 2481b915c101SSara Sharon int i; 2482b915c101SSara Sharon 2483b915c101SSara Sharon iwl_mvm_sync_rxq_del_ba(mvm, data->baid); 2484b915c101SSara Sharon 2485b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2486b915c101SSara Sharon int j; 2487b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2488b915c101SSara Sharon &data->reorder_buf[i]; 2489dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2490dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2491b915c101SSara Sharon 24920690405fSSara Sharon spin_lock_bh(&reorder_buf->lock); 24930690405fSSara Sharon if (likely(!reorder_buf->num_stored)) { 24940690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 2495b915c101SSara Sharon continue; 24960690405fSSara Sharon } 2497b915c101SSara Sharon 2498b915c101SSara Sharon /* 2499b915c101SSara Sharon * This shouldn't happen in regular DELBA since the internal 2500b915c101SSara Sharon * delBA notification should trigger a release of all frames in 2501b915c101SSara Sharon * the reorder buffer. 2502b915c101SSara Sharon */ 2503b915c101SSara Sharon WARN_ON(1); 2504b915c101SSara Sharon 2505b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2506dfdddd92SJohannes Berg __skb_queue_purge(&entries[j].e.frames); 25070690405fSSara Sharon /* 25080690405fSSara Sharon * Prevent timer re-arm. This prevents a very far fetched case 25090690405fSSara Sharon * where we timed out on the notification. There may be prior 25100690405fSSara Sharon * RX frames pending in the RX queue before the notification 25110690405fSSara Sharon * that might get processed between now and the actual deletion 25120690405fSSara Sharon * and we would re-arm the timer although we are deleting the 25130690405fSSara Sharon * reorder buffer. 25140690405fSSara Sharon */ 25150690405fSSara Sharon reorder_buf->removed = true; 25160690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 25170690405fSSara Sharon del_timer_sync(&reorder_buf->reorder_timer); 2518b915c101SSara Sharon } 2519b915c101SSara Sharon } 2520b915c101SSara Sharon 2521b915c101SSara Sharon static void iwl_mvm_init_reorder_buffer(struct iwl_mvm *mvm, 2522b915c101SSara Sharon struct iwl_mvm_baid_data *data, 2523514c3069SLuca Coelho u16 ssn, u16 buf_size) 2524b915c101SSara Sharon { 2525b915c101SSara Sharon int i; 2526b915c101SSara Sharon 2527b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2528b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2529b915c101SSara Sharon &data->reorder_buf[i]; 2530dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2531dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2532b915c101SSara Sharon int j; 2533b915c101SSara Sharon 2534b915c101SSara Sharon reorder_buf->num_stored = 0; 2535b915c101SSara Sharon reorder_buf->head_sn = ssn; 2536b915c101SSara Sharon reorder_buf->buf_size = buf_size; 25370690405fSSara Sharon /* rx reorder timer */ 25388cef5344SKees Cook timer_setup(&reorder_buf->reorder_timer, 25398cef5344SKees Cook iwl_mvm_reorder_timer_expired, 0); 25400690405fSSara Sharon spin_lock_init(&reorder_buf->lock); 25410690405fSSara Sharon reorder_buf->mvm = mvm; 2542b915c101SSara Sharon reorder_buf->queue = i; 25435d43eab6SSara Sharon reorder_buf->valid = false; 2544b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2545dfdddd92SJohannes Berg __skb_queue_head_init(&entries[j].e.frames); 2546b915c101SSara Sharon } 254710b2b201SSara Sharon } 254810b2b201SSara Sharon 254997f70c56SJohannes Berg static int iwl_mvm_fw_baid_op_sta(struct iwl_mvm *mvm, 255097f70c56SJohannes Berg struct iwl_mvm_sta *mvm_sta, 255197f70c56SJohannes Berg bool start, int tid, u16 ssn, 255297f70c56SJohannes Berg u16 buf_size) 25530f3a4e48SJohannes Berg { 25540f3a4e48SJohannes Berg struct iwl_mvm_add_sta_cmd cmd = { 25550f3a4e48SJohannes Berg .mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color), 25560f3a4e48SJohannes Berg .sta_id = mvm_sta->sta_id, 25570f3a4e48SJohannes Berg .add_modify = STA_MODE_MODIFY, 25580f3a4e48SJohannes Berg }; 25590f3a4e48SJohannes Berg u32 status; 25600f3a4e48SJohannes Berg int ret; 25610f3a4e48SJohannes Berg 25620f3a4e48SJohannes Berg if (start) { 25630f3a4e48SJohannes Berg cmd.add_immediate_ba_tid = tid; 25640f3a4e48SJohannes Berg cmd.add_immediate_ba_ssn = cpu_to_le16(ssn); 25650f3a4e48SJohannes Berg cmd.rx_ba_window = cpu_to_le16(buf_size); 25660f3a4e48SJohannes Berg cmd.modify_mask = STA_MODIFY_ADD_BA_TID; 25670f3a4e48SJohannes Berg } else { 25680f3a4e48SJohannes Berg cmd.remove_immediate_ba_tid = tid; 25690f3a4e48SJohannes Berg cmd.modify_mask = STA_MODIFY_REMOVE_BA_TID; 25700f3a4e48SJohannes Berg } 25710f3a4e48SJohannes Berg 25720f3a4e48SJohannes Berg status = ADD_STA_SUCCESS; 25730f3a4e48SJohannes Berg ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 25740f3a4e48SJohannes Berg iwl_mvm_add_sta_cmd_size(mvm), 25750f3a4e48SJohannes Berg &cmd, &status); 25760f3a4e48SJohannes Berg if (ret) 25770f3a4e48SJohannes Berg return ret; 25780f3a4e48SJohannes Berg 25790f3a4e48SJohannes Berg switch (status & IWL_ADD_STA_STATUS_MASK) { 25800f3a4e48SJohannes Berg case ADD_STA_SUCCESS: 25810f3a4e48SJohannes Berg IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n", 25820f3a4e48SJohannes Berg start ? "start" : "stopp"); 25830f3a4e48SJohannes Berg if (WARN_ON(start && iwl_mvm_has_new_rx_api(mvm) && 25840f3a4e48SJohannes Berg !(status & IWL_ADD_STA_BAID_VALID_MASK))) 25850f3a4e48SJohannes Berg return -EINVAL; 25860f3a4e48SJohannes Berg return u32_get_bits(status, IWL_ADD_STA_BAID_MASK); 25870f3a4e48SJohannes Berg case ADD_STA_IMMEDIATE_BA_FAILURE: 25880f3a4e48SJohannes Berg IWL_WARN(mvm, "RX BA Session refused by fw\n"); 25890f3a4e48SJohannes Berg return -ENOSPC; 25900f3a4e48SJohannes Berg default: 25910f3a4e48SJohannes Berg IWL_ERR(mvm, "RX BA Session failed %sing, status 0x%x\n", 25920f3a4e48SJohannes Berg start ? "start" : "stopp", status); 25930f3a4e48SJohannes Berg return -EIO; 25940f3a4e48SJohannes Berg } 25950f3a4e48SJohannes Berg } 25960f3a4e48SJohannes Berg 259797f70c56SJohannes Berg static int iwl_mvm_fw_baid_op_cmd(struct iwl_mvm *mvm, 259897f70c56SJohannes Berg struct iwl_mvm_sta *mvm_sta, 259997f70c56SJohannes Berg bool start, int tid, u16 ssn, 260097f70c56SJohannes Berg u16 buf_size, int baid) 260197f70c56SJohannes Berg { 260297f70c56SJohannes Berg struct iwl_rx_baid_cfg_cmd cmd = { 260397f70c56SJohannes Berg .action = start ? cpu_to_le32(IWL_RX_BAID_ACTION_ADD) : 260497f70c56SJohannes Berg cpu_to_le32(IWL_RX_BAID_ACTION_REMOVE), 260597f70c56SJohannes Berg }; 260697f70c56SJohannes Berg u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, RX_BAID_ALLOCATION_CONFIG_CMD); 260797f70c56SJohannes Berg int ret; 260897f70c56SJohannes Berg 260997f70c56SJohannes Berg BUILD_BUG_ON(sizeof(struct iwl_rx_baid_cfg_resp) != sizeof(baid)); 261097f70c56SJohannes Berg 261197f70c56SJohannes Berg if (start) { 261297f70c56SJohannes Berg cmd.alloc.sta_id_mask = cpu_to_le32(BIT(mvm_sta->sta_id)); 261397f70c56SJohannes Berg cmd.alloc.tid = tid; 261497f70c56SJohannes Berg cmd.alloc.ssn = cpu_to_le16(ssn); 261597f70c56SJohannes Berg cmd.alloc.win_size = cpu_to_le16(buf_size); 261697f70c56SJohannes Berg baid = -EIO; 261797f70c56SJohannes Berg } else { 261897f70c56SJohannes Berg cmd.remove.baid = cpu_to_le32(baid); 261997f70c56SJohannes Berg } 262097f70c56SJohannes Berg 262197f70c56SJohannes Berg ret = iwl_mvm_send_cmd_pdu_status(mvm, cmd_id, sizeof(cmd), 262297f70c56SJohannes Berg &cmd, &baid); 262397f70c56SJohannes Berg if (ret) 262497f70c56SJohannes Berg return ret; 262597f70c56SJohannes Berg 262697f70c56SJohannes Berg if (!start) { 262797f70c56SJohannes Berg /* ignore firmware baid on remove */ 262897f70c56SJohannes Berg baid = 0; 262997f70c56SJohannes Berg } 263097f70c56SJohannes Berg 263197f70c56SJohannes Berg IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n", 263297f70c56SJohannes Berg start ? "start" : "stopp"); 263397f70c56SJohannes Berg 263497f70c56SJohannes Berg if (baid < 0 || baid >= ARRAY_SIZE(mvm->baid_map)) 263597f70c56SJohannes Berg return -EINVAL; 263697f70c56SJohannes Berg 263797f70c56SJohannes Berg return baid; 263897f70c56SJohannes Berg } 263997f70c56SJohannes Berg 264097f70c56SJohannes Berg static int iwl_mvm_fw_baid_op(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvm_sta, 264197f70c56SJohannes Berg bool start, int tid, u16 ssn, u16 buf_size, 264297f70c56SJohannes Berg int baid) 264397f70c56SJohannes Berg { 264497f70c56SJohannes Berg if (fw_has_capa(&mvm->fw->ucode_capa, 264597f70c56SJohannes Berg IWL_UCODE_TLV_CAPA_BAID_ML_SUPPORT)) 264697f70c56SJohannes Berg return iwl_mvm_fw_baid_op_cmd(mvm, mvm_sta, start, 264797f70c56SJohannes Berg tid, ssn, buf_size, baid); 264897f70c56SJohannes Berg 264997f70c56SJohannes Berg return iwl_mvm_fw_baid_op_sta(mvm, mvm_sta, start, 265097f70c56SJohannes Berg tid, ssn, buf_size); 265197f70c56SJohannes Berg } 265297f70c56SJohannes Berg 2653e705c121SKalle Valo int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2654514c3069SLuca Coelho int tid, u16 ssn, bool start, u16 buf_size, u16 timeout) 2655e705c121SKalle Valo { 2656e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 265710b2b201SSara Sharon struct iwl_mvm_baid_data *baid_data = NULL; 26580f3a4e48SJohannes Berg int ret, baid; 2659ded5ded3SEmmanuel Grumbach u32 max_ba_id_sessions = iwl_mvm_has_new_tx_api(mvm) ? IWL_MAX_BAID : 2660ded5ded3SEmmanuel Grumbach IWL_MAX_BAID_OLD; 2661e705c121SKalle Valo 2662e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2663e705c121SKalle Valo 2664ded5ded3SEmmanuel Grumbach if (start && mvm->rx_ba_sessions >= max_ba_id_sessions) { 2665e705c121SKalle Valo IWL_WARN(mvm, "Not enough RX BA SESSIONS\n"); 2666e705c121SKalle Valo return -ENOSPC; 2667e705c121SKalle Valo } 2668e705c121SKalle Valo 266910b2b201SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && start) { 2670dfdddd92SJohannes Berg u16 reorder_buf_size = buf_size * sizeof(baid_data->entries[0]); 2671dfdddd92SJohannes Berg 2672dfdddd92SJohannes Berg /* sparse doesn't like the __align() so don't check */ 2673dfdddd92SJohannes Berg #ifndef __CHECKER__ 2674dfdddd92SJohannes Berg /* 2675dfdddd92SJohannes Berg * The division below will be OK if either the cache line size 2676dfdddd92SJohannes Berg * can be divided by the entry size (ALIGN will round up) or if 2677dfdddd92SJohannes Berg * if the entry size can be divided by the cache line size, in 2678dfdddd92SJohannes Berg * which case the ALIGN() will do nothing. 2679dfdddd92SJohannes Berg */ 2680dfdddd92SJohannes Berg BUILD_BUG_ON(SMP_CACHE_BYTES % sizeof(baid_data->entries[0]) && 2681dfdddd92SJohannes Berg sizeof(baid_data->entries[0]) % SMP_CACHE_BYTES); 2682dfdddd92SJohannes Berg #endif 2683dfdddd92SJohannes Berg 2684dfdddd92SJohannes Berg /* 2685dfdddd92SJohannes Berg * Upward align the reorder buffer size to fill an entire cache 2686dfdddd92SJohannes Berg * line for each queue, to avoid sharing cache lines between 2687dfdddd92SJohannes Berg * different queues. 2688dfdddd92SJohannes Berg */ 2689dfdddd92SJohannes Berg reorder_buf_size = ALIGN(reorder_buf_size, SMP_CACHE_BYTES); 2690dfdddd92SJohannes Berg 269110b2b201SSara Sharon /* 269210b2b201SSara Sharon * Allocate here so if allocation fails we can bail out early 269310b2b201SSara Sharon * before starting the BA session in the firmware 269410b2b201SSara Sharon */ 2695b915c101SSara Sharon baid_data = kzalloc(sizeof(*baid_data) + 2696b915c101SSara Sharon mvm->trans->num_rx_queues * 2697dfdddd92SJohannes Berg reorder_buf_size, 2698b915c101SSara Sharon GFP_KERNEL); 269910b2b201SSara Sharon if (!baid_data) 270010b2b201SSara Sharon return -ENOMEM; 2701dfdddd92SJohannes Berg 2702dfdddd92SJohannes Berg /* 2703dfdddd92SJohannes Berg * This division is why we need the above BUILD_BUG_ON(), 2704dfdddd92SJohannes Berg * if that doesn't hold then this will not be right. 2705dfdddd92SJohannes Berg */ 2706dfdddd92SJohannes Berg baid_data->entries_per_queue = 2707dfdddd92SJohannes Berg reorder_buf_size / sizeof(baid_data->entries[0]); 270810b2b201SSara Sharon } 270910b2b201SSara Sharon 271097f70c56SJohannes Berg if (iwl_mvm_has_new_rx_api(mvm) && !start) { 271197f70c56SJohannes Berg baid = mvm_sta->tid_to_baid[tid]; 271297f70c56SJohannes Berg } else { 271397f70c56SJohannes Berg /* we don't really need it in this case */ 271497f70c56SJohannes Berg baid = -1; 271597f70c56SJohannes Berg } 271697f70c56SJohannes Berg 2717*3538c809SLuca Coelho /* Don't send command to remove (start=0) BAID during restart */ 2718*3538c809SLuca Coelho if (start || !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 271997f70c56SJohannes Berg baid = iwl_mvm_fw_baid_op(mvm, mvm_sta, start, tid, ssn, buf_size, 272097f70c56SJohannes Berg baid); 2721*3538c809SLuca Coelho 27220f3a4e48SJohannes Berg if (baid < 0) { 27230f3a4e48SJohannes Berg ret = baid; 272410b2b201SSara Sharon goto out_free; 2725e705c121SKalle Valo } 2726e705c121SKalle Valo 272710b2b201SSara Sharon if (start) { 2728e705c121SKalle Valo mvm->rx_ba_sessions++; 272910b2b201SSara Sharon 273010b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 273110b2b201SSara Sharon return 0; 273210b2b201SSara Sharon 273310b2b201SSara Sharon baid_data->baid = baid; 273410b2b201SSara Sharon baid_data->timeout = timeout; 273510b2b201SSara Sharon baid_data->last_rx = jiffies; 27368cef5344SKees Cook baid_data->rcu_ptr = &mvm->baid_map[baid]; 27378cef5344SKees Cook timer_setup(&baid_data->session_timer, 27388cef5344SKees Cook iwl_mvm_rx_agg_session_expired, 0); 273910b2b201SSara Sharon baid_data->mvm = mvm; 274010b2b201SSara Sharon baid_data->tid = tid; 274110b2b201SSara Sharon baid_data->sta_id = mvm_sta->sta_id; 274210b2b201SSara Sharon 274310b2b201SSara Sharon mvm_sta->tid_to_baid[tid] = baid; 274410b2b201SSara Sharon if (timeout) 274510b2b201SSara Sharon mod_timer(&baid_data->session_timer, 274610b2b201SSara Sharon TU_TO_EXP_TIME(timeout * 2)); 274710b2b201SSara Sharon 27483f1c4c58SSara Sharon iwl_mvm_init_reorder_buffer(mvm, baid_data, ssn, buf_size); 274910b2b201SSara Sharon /* 275010b2b201SSara Sharon * protect the BA data with RCU to cover a case where our 275110b2b201SSara Sharon * internal RX sync mechanism will timeout (not that it's 275210b2b201SSara Sharon * supposed to happen) and we will free the session data while 275310b2b201SSara Sharon * RX is being processed in parallel 275410b2b201SSara Sharon */ 275535263a03SSara Sharon IWL_DEBUG_HT(mvm, "Sta %d(%d) is assigned to BAID %d\n", 275635263a03SSara Sharon mvm_sta->sta_id, tid, baid); 275710b2b201SSara Sharon WARN_ON(rcu_access_pointer(mvm->baid_map[baid])); 275810b2b201SSara Sharon rcu_assign_pointer(mvm->baid_map[baid], baid_data); 275960dec523SSara Sharon } else { 27600f3a4e48SJohannes Berg baid = mvm_sta->tid_to_baid[tid]; 276110b2b201SSara Sharon 276260dec523SSara Sharon if (mvm->rx_ba_sessions > 0) 2763e705c121SKalle Valo /* check that restart flow didn't zero the counter */ 2764e705c121SKalle Valo mvm->rx_ba_sessions--; 276510b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 276610b2b201SSara Sharon return 0; 2767e705c121SKalle Valo 276810b2b201SSara Sharon if (WARN_ON(baid == IWL_RX_REORDER_DATA_INVALID_BAID)) 276910b2b201SSara Sharon return -EINVAL; 277010b2b201SSara Sharon 277110b2b201SSara Sharon baid_data = rcu_access_pointer(mvm->baid_map[baid]); 277210b2b201SSara Sharon if (WARN_ON(!baid_data)) 277310b2b201SSara Sharon return -EINVAL; 277410b2b201SSara Sharon 277510b2b201SSara Sharon /* synchronize all rx queues so we can safely delete */ 2776b915c101SSara Sharon iwl_mvm_free_reorder(mvm, baid_data); 277710b2b201SSara Sharon del_timer_sync(&baid_data->session_timer); 277810b2b201SSara Sharon RCU_INIT_POINTER(mvm->baid_map[baid], NULL); 277910b2b201SSara Sharon kfree_rcu(baid_data, rcu_head); 278035263a03SSara Sharon IWL_DEBUG_HT(mvm, "BAID %d is free\n", baid); 27812438d430SJohannes Berg 27822438d430SJohannes Berg /* 27832438d430SJohannes Berg * After we've deleted it, do another queue sync 27842438d430SJohannes Berg * so if an IWL_MVM_RXQ_NSSN_SYNC was concurrently 27852438d430SJohannes Berg * running it won't find a new session in the old 27862438d430SJohannes Berg * BAID. It can find the NULL pointer for the BAID, 27872438d430SJohannes Berg * but we must not have it find a different session. 27882438d430SJohannes Berg */ 27892438d430SJohannes Berg iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, 27902438d430SJohannes Berg true, NULL, 0); 279110b2b201SSara Sharon } 279210b2b201SSara Sharon return 0; 279310b2b201SSara Sharon 279410b2b201SSara Sharon out_free: 279510b2b201SSara Sharon kfree(baid_data); 2796e705c121SKalle Valo return ret; 2797e705c121SKalle Valo } 2798e705c121SKalle Valo 27999794c64fSLiad Kaufman int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2800e705c121SKalle Valo int tid, u8 queue, bool start) 2801e705c121SKalle Valo { 2802e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2803e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 2804e705c121SKalle Valo int ret; 2805e705c121SKalle Valo u32 status; 2806e705c121SKalle Valo 2807e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2808e705c121SKalle Valo 2809e705c121SKalle Valo if (start) { 2810e705c121SKalle Valo mvm_sta->tfd_queue_msk |= BIT(queue); 2811e705c121SKalle Valo mvm_sta->tid_disable_agg &= ~BIT(tid); 2812e705c121SKalle Valo } else { 2813cf961e16SLiad Kaufman /* In DQA-mode the queue isn't removed on agg termination */ 2814e705c121SKalle Valo mvm_sta->tid_disable_agg |= BIT(tid); 2815e705c121SKalle Valo } 2816e705c121SKalle Valo 2817e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 2818e705c121SKalle Valo cmd.sta_id = mvm_sta->sta_id; 2819e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 2820bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) 2821bb49701bSSara Sharon cmd.modify_mask = STA_MODIFY_QUEUES; 2822bb49701bSSara Sharon cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 2823e705c121SKalle Valo cmd.tfd_queue_msk = cpu_to_le32(mvm_sta->tfd_queue_msk); 2824e705c121SKalle Valo cmd.tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg); 2825e705c121SKalle Valo 2826e705c121SKalle Valo status = ADD_STA_SUCCESS; 2827854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 2828854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 2829e705c121SKalle Valo &cmd, &status); 2830e705c121SKalle Valo if (ret) 2831e705c121SKalle Valo return ret; 2832e705c121SKalle Valo 2833837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 2834e705c121SKalle Valo case ADD_STA_SUCCESS: 2835e705c121SKalle Valo break; 2836e705c121SKalle Valo default: 2837e705c121SKalle Valo ret = -EIO; 2838e705c121SKalle Valo IWL_ERR(mvm, "TX BA Session failed %sing, status 0x%x\n", 2839e705c121SKalle Valo start ? "start" : "stopp", status); 2840e705c121SKalle Valo break; 2841e705c121SKalle Valo } 2842e705c121SKalle Valo 2843e705c121SKalle Valo return ret; 2844e705c121SKalle Valo } 2845e705c121SKalle Valo 2846e705c121SKalle Valo const u8 tid_to_mac80211_ac[] = { 2847e705c121SKalle Valo IEEE80211_AC_BE, 2848e705c121SKalle Valo IEEE80211_AC_BK, 2849e705c121SKalle Valo IEEE80211_AC_BK, 2850e705c121SKalle Valo IEEE80211_AC_BE, 2851e705c121SKalle Valo IEEE80211_AC_VI, 2852e705c121SKalle Valo IEEE80211_AC_VI, 2853e705c121SKalle Valo IEEE80211_AC_VO, 2854e705c121SKalle Valo IEEE80211_AC_VO, 28559794c64fSLiad Kaufman IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 2856e705c121SKalle Valo }; 2857e705c121SKalle Valo 2858e705c121SKalle Valo static const u8 tid_to_ucode_ac[] = { 2859e705c121SKalle Valo AC_BE, 2860e705c121SKalle Valo AC_BK, 2861e705c121SKalle Valo AC_BK, 2862e705c121SKalle Valo AC_BE, 2863e705c121SKalle Valo AC_VI, 2864e705c121SKalle Valo AC_VI, 2865e705c121SKalle Valo AC_VO, 2866e705c121SKalle Valo AC_VO, 2867e705c121SKalle Valo }; 2868e705c121SKalle Valo 2869e705c121SKalle Valo int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2870e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 *ssn) 2871e705c121SKalle Valo { 2872e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2873e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 2874dd32162dSLiad Kaufman u16 normalized_ssn; 2875b0d795a9SMordechay Goodstein u16 txq_id; 2876e705c121SKalle Valo int ret; 2877e705c121SKalle Valo 2878e705c121SKalle Valo if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT)) 2879e705c121SKalle Valo return -EINVAL; 2880e705c121SKalle Valo 2881bd800e41SNaftali Goldstein if (mvmsta->tid_data[tid].state != IWL_AGG_QUEUED && 2882bd800e41SNaftali Goldstein mvmsta->tid_data[tid].state != IWL_AGG_OFF) { 2883bd800e41SNaftali Goldstein IWL_ERR(mvm, 2884bd800e41SNaftali Goldstein "Start AGG when state is not IWL_AGG_QUEUED or IWL_AGG_OFF %d!\n", 2885e705c121SKalle Valo mvmsta->tid_data[tid].state); 2886e705c121SKalle Valo return -ENXIO; 2887e705c121SKalle Valo } 2888e705c121SKalle Valo 2889e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2890e705c121SKalle Valo 2891bd8f3fc6SLiad Kaufman if (mvmsta->tid_data[tid].txq_id == IWL_MVM_INVALID_QUEUE && 2892bd8f3fc6SLiad Kaufman iwl_mvm_has_new_tx_api(mvm)) { 2893bd8f3fc6SLiad Kaufman u8 ac = tid_to_mac80211_ac[tid]; 2894bd8f3fc6SLiad Kaufman 2895bd8f3fc6SLiad Kaufman ret = iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 2896bd8f3fc6SLiad Kaufman if (ret) 2897bd8f3fc6SLiad Kaufman return ret; 2898bd8f3fc6SLiad Kaufman } 2899bd8f3fc6SLiad Kaufman 2900e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2901e705c121SKalle Valo 2902cf961e16SLiad Kaufman /* 2903cf961e16SLiad Kaufman * Note the possible cases: 29044a6d2e52SAvraham Stern * 1. An enabled TXQ - TXQ needs to become agg'ed 29054a6d2e52SAvraham Stern * 2. The TXQ hasn't yet been enabled, so find a free one and mark 29064a6d2e52SAvraham Stern * it as reserved 2907cf961e16SLiad Kaufman */ 2908cf961e16SLiad Kaufman txq_id = mvmsta->tid_data[tid].txq_id; 290934e10860SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) { 2910b0d795a9SMordechay Goodstein ret = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 2911c8f54701SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 2912c8f54701SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 2913b0d795a9SMordechay Goodstein if (ret < 0) { 2914e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate agg queue\n"); 2915f3f240f9SJohannes Berg goto out; 2916e705c121SKalle Valo } 2917cf961e16SLiad Kaufman 2918b0d795a9SMordechay Goodstein txq_id = ret; 2919b0d795a9SMordechay Goodstein 2920cf961e16SLiad Kaufman /* TXQ hasn't yet been enabled, so mark it only as reserved */ 2921cf961e16SLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_RESERVED; 2922b0d795a9SMordechay Goodstein } else if (WARN_ON(txq_id >= IWL_MAX_HW_QUEUES)) { 2923b0d795a9SMordechay Goodstein ret = -ENXIO; 2924b0d795a9SMordechay Goodstein IWL_ERR(mvm, "tid_id %d out of range (0, %d)!\n", 2925b0d795a9SMordechay Goodstein tid, IWL_MAX_HW_QUEUES - 1); 2926b0d795a9SMordechay Goodstein goto out; 2927b0d795a9SMordechay Goodstein 29284a6d2e52SAvraham Stern } else if (unlikely(mvm->queue_info[txq_id].status == 29294a6d2e52SAvraham Stern IWL_MVM_QUEUE_SHARED)) { 29304a6d2e52SAvraham Stern ret = -ENXIO; 29314a6d2e52SAvraham Stern IWL_DEBUG_TX_QUEUES(mvm, 29324a6d2e52SAvraham Stern "Can't start tid %d agg on shared queue!\n", 29334a6d2e52SAvraham Stern tid); 2934f3f240f9SJohannes Berg goto out; 2935cf961e16SLiad Kaufman } 29369f9af3d7SLiad Kaufman 2937cf961e16SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 2938cf961e16SLiad Kaufman "AGG for tid %d will be on queue #%d\n", 2939cf961e16SLiad Kaufman tid, txq_id); 2940cf961e16SLiad Kaufman 2941e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 2942e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 2943e705c121SKalle Valo tid_data->txq_id = txq_id; 2944e705c121SKalle Valo *ssn = tid_data->ssn; 2945e705c121SKalle Valo 2946e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 2947e705c121SKalle Valo "Start AGG: sta %d tid %d queue %d - ssn = %d, next_recl = %d\n", 2948e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->ssn, 2949e705c121SKalle Valo tid_data->next_reclaimed); 2950e705c121SKalle Valo 2951dd32162dSLiad Kaufman /* 29522f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 2953dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 2954dd32162dSLiad Kaufman */ 2955dd32162dSLiad Kaufman normalized_ssn = tid_data->ssn; 2956286ca8ebSLuca Coelho if (mvm->trans->trans_cfg->gen2) 2957dd32162dSLiad Kaufman normalized_ssn &= 0xff; 2958dd32162dSLiad Kaufman 2959dd32162dSLiad Kaufman if (normalized_ssn == tid_data->next_reclaimed) { 2960e705c121SKalle Valo tid_data->state = IWL_AGG_STARTING; 29612ce113deSJohannes Berg ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 2962e705c121SKalle Valo } else { 2963e705c121SKalle Valo tid_data->state = IWL_EMPTYING_HW_QUEUE_ADDBA; 29647e0ca723SMordechay Goodstein ret = IEEE80211_AMPDU_TX_START_DELAY_ADDBA; 29652ce113deSJohannes Berg } 2966e705c121SKalle Valo 29679f9af3d7SLiad Kaufman out: 2968e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2969e705c121SKalle Valo 2970e705c121SKalle Valo return ret; 2971e705c121SKalle Valo } 2972e705c121SKalle Valo 2973e705c121SKalle Valo int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2974514c3069SLuca Coelho struct ieee80211_sta *sta, u16 tid, u16 buf_size, 2975bb81bb68SEmmanuel Grumbach bool amsdu) 2976e705c121SKalle Valo { 2977e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2978e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2979e705c121SKalle Valo unsigned int wdg_timeout = 2980e705c121SKalle Valo iwl_mvm_get_wd_timeout(mvm, vif, sta->tdls, false); 2981eea76c36SEmmanuel Grumbach int queue, ret; 2982cf961e16SLiad Kaufman bool alloc_queue = true; 29839f9af3d7SLiad Kaufman enum iwl_mvm_queue_status queue_status; 2984e705c121SKalle Valo u16 ssn; 2985e705c121SKalle Valo 2986eea76c36SEmmanuel Grumbach struct iwl_trans_txq_scd_cfg cfg = { 2987eea76c36SEmmanuel Grumbach .sta_id = mvmsta->sta_id, 2988eea76c36SEmmanuel Grumbach .tid = tid, 2989eea76c36SEmmanuel Grumbach .frame_limit = buf_size, 2990eea76c36SEmmanuel Grumbach .aggregate = true, 2991eea76c36SEmmanuel Grumbach }; 2992eea76c36SEmmanuel Grumbach 2993ecaf71deSGregory Greenman /* 2994ecaf71deSGregory Greenman * When FW supports TLC_OFFLOAD, it also implements Tx aggregation 2995ecaf71deSGregory Greenman * manager, so this function should never be called in this case. 2996ecaf71deSGregory Greenman */ 29974243edb4SEmmanuel Grumbach if (WARN_ON_ONCE(iwl_mvm_has_tlc_offload(mvm))) 2998ecaf71deSGregory Greenman return -EINVAL; 2999ecaf71deSGregory Greenman 3000e705c121SKalle Valo BUILD_BUG_ON((sizeof(mvmsta->agg_tids) * BITS_PER_BYTE) 3001e705c121SKalle Valo != IWL_MAX_TID_COUNT); 3002e705c121SKalle Valo 3003e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3004e705c121SKalle Valo ssn = tid_data->ssn; 3005e705c121SKalle Valo queue = tid_data->txq_id; 3006e705c121SKalle Valo tid_data->state = IWL_AGG_ON; 3007e705c121SKalle Valo mvmsta->agg_tids |= BIT(tid); 3008e705c121SKalle Valo tid_data->ssn = 0xffff; 3009bb81bb68SEmmanuel Grumbach tid_data->amsdu_in_ampdu_allowed = amsdu; 3010e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3011e705c121SKalle Valo 301234e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 301334e10860SSara Sharon /* 30140ec9257bSSara Sharon * If there is no queue for this tid, iwl_mvm_sta_tx_agg_start() 30150ec9257bSSara Sharon * would have failed, so if we are here there is no need to 30160ec9257bSSara Sharon * allocate a queue. 30170ec9257bSSara Sharon * However, if aggregation size is different than the default 30180ec9257bSSara Sharon * size, the scheduler should be reconfigured. 30190ec9257bSSara Sharon * We cannot do this with the new TX API, so return unsupported 30200ec9257bSSara Sharon * for now, until it will be offloaded to firmware.. 30210ec9257bSSara Sharon * Note that if SCD default value changes - this condition 30220ec9257bSSara Sharon * should be updated as well. 302334e10860SSara Sharon */ 30240ec9257bSSara Sharon if (buf_size < IWL_FRAME_LIMIT) 302534e10860SSara Sharon return -ENOTSUPP; 302634e10860SSara Sharon 302734e10860SSara Sharon ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 302834e10860SSara Sharon if (ret) 302934e10860SSara Sharon return -EIO; 303034e10860SSara Sharon goto out; 303134e10860SSara Sharon } 303234e10860SSara Sharon 3033eea76c36SEmmanuel Grumbach cfg.fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 3034e705c121SKalle Valo 30359f9af3d7SLiad Kaufman queue_status = mvm->queue_info[queue].status; 30369f9af3d7SLiad Kaufman 3037cf961e16SLiad Kaufman /* Maybe there is no need to even alloc a queue... */ 3038cf961e16SLiad Kaufman if (mvm->queue_info[queue].status == IWL_MVM_QUEUE_READY) 3039cf961e16SLiad Kaufman alloc_queue = false; 3040cf961e16SLiad Kaufman 3041cf961e16SLiad Kaufman /* 3042cf961e16SLiad Kaufman * Only reconfig the SCD for the queue if the window size has 3043cf961e16SLiad Kaufman * changed from current (become smaller) 3044cf961e16SLiad Kaufman */ 30450ec9257bSSara Sharon if (!alloc_queue && buf_size < IWL_FRAME_LIMIT) { 3046cf961e16SLiad Kaufman /* 3047cf961e16SLiad Kaufman * If reconfiguring an existing queue, it first must be 3048cf961e16SLiad Kaufman * drained 3049cf961e16SLiad Kaufman */ 3050a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 3051cf961e16SLiad Kaufman BIT(queue)); 3052cf961e16SLiad Kaufman if (ret) { 3053cf961e16SLiad Kaufman IWL_ERR(mvm, 3054cf961e16SLiad Kaufman "Error draining queue before reconfig\n"); 3055cf961e16SLiad Kaufman return ret; 3056cf961e16SLiad Kaufman } 3057cf961e16SLiad Kaufman 3058cf961e16SLiad Kaufman ret = iwl_mvm_reconfig_scd(mvm, queue, cfg.fifo, 3059cf961e16SLiad Kaufman mvmsta->sta_id, tid, 3060cf961e16SLiad Kaufman buf_size, ssn); 3061cf961e16SLiad Kaufman if (ret) { 3062cf961e16SLiad Kaufman IWL_ERR(mvm, 3063cf961e16SLiad Kaufman "Error reconfiguring TXQ #%d\n", queue); 3064cf961e16SLiad Kaufman return ret; 3065cf961e16SLiad Kaufman } 3066cf961e16SLiad Kaufman } 3067cf961e16SLiad Kaufman 3068cf961e16SLiad Kaufman if (alloc_queue) 3069cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, queue, ssn, 3070cf961e16SLiad Kaufman &cfg, wdg_timeout); 3071e705c121SKalle Valo 30729f9af3d7SLiad Kaufman /* Send ADD_STA command to enable aggs only if the queue isn't shared */ 30739f9af3d7SLiad Kaufman if (queue_status != IWL_MVM_QUEUE_SHARED) { 3074e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 3075e705c121SKalle Valo if (ret) 3076e705c121SKalle Valo return -EIO; 30779f9af3d7SLiad Kaufman } 3078e705c121SKalle Valo 3079e705c121SKalle Valo /* No need to mark as reserved */ 3080cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 3081e705c121SKalle Valo 308234e10860SSara Sharon out: 3083e705c121SKalle Valo /* 3084e705c121SKalle Valo * Even though in theory the peer could have different 3085e705c121SKalle Valo * aggregation reorder buffer sizes for different sessions, 3086e705c121SKalle Valo * our ucode doesn't allow for that and has a global limit 3087e705c121SKalle Valo * for each station. Therefore, use the minimum of all the 3088e705c121SKalle Valo * aggregation sessions and our default value. 3089e705c121SKalle Valo */ 3090e705c121SKalle Valo mvmsta->max_agg_bufsize = 3091e705c121SKalle Valo min(mvmsta->max_agg_bufsize, buf_size); 3092ecaf71deSGregory Greenman mvmsta->lq_sta.rs_drv.lq.agg_frame_cnt_limit = mvmsta->max_agg_bufsize; 3093e705c121SKalle Valo 3094e705c121SKalle Valo IWL_DEBUG_HT(mvm, "Tx aggregation enabled on ra = %pM tid = %d\n", 3095e705c121SKalle Valo sta->addr, tid); 3096e705c121SKalle Valo 3097cd4d6b0bSGregory Greenman return iwl_mvm_send_lq_cmd(mvm, &mvmsta->lq_sta.rs_drv.lq); 3098e705c121SKalle Valo } 3099e705c121SKalle Valo 310034e10860SSara Sharon static void iwl_mvm_unreserve_agg_queue(struct iwl_mvm *mvm, 310134e10860SSara Sharon struct iwl_mvm_sta *mvmsta, 31024b387906SAvraham Stern struct iwl_mvm_tid_data *tid_data) 310334e10860SSara Sharon { 31044b387906SAvraham Stern u16 txq_id = tid_data->txq_id; 31054b387906SAvraham Stern 3106f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 3107f3f240f9SJohannes Berg 310834e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 310934e10860SSara Sharon return; 311034e10860SSara Sharon 311134e10860SSara Sharon /* 311234e10860SSara Sharon * The TXQ is marked as reserved only if no traffic came through yet 311334e10860SSara Sharon * This means no traffic has been sent on this TID (agg'd or not), so 311434e10860SSara Sharon * we no longer have use for the queue. Since it hasn't even been 311534e10860SSara Sharon * allocated through iwl_mvm_enable_txq, so we can just mark it back as 311634e10860SSara Sharon * free. 311734e10860SSara Sharon */ 31184b387906SAvraham Stern if (mvm->queue_info[txq_id].status == IWL_MVM_QUEUE_RESERVED) { 311934e10860SSara Sharon mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_FREE; 31204b387906SAvraham Stern tid_data->txq_id = IWL_MVM_INVALID_QUEUE; 31214b387906SAvraham Stern } 312234e10860SSara Sharon } 312334e10860SSara Sharon 3124e705c121SKalle Valo int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3125e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3126e705c121SKalle Valo { 3127e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3128e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3129e705c121SKalle Valo u16 txq_id; 3130e705c121SKalle Valo int err; 3131e705c121SKalle Valo 3132e705c121SKalle Valo /* 3133e705c121SKalle Valo * If mac80211 is cleaning its state, then say that we finished since 3134e705c121SKalle Valo * our state has been cleared anyway. 3135e705c121SKalle Valo */ 3136e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3137e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3138e705c121SKalle Valo return 0; 3139e705c121SKalle Valo } 3140e705c121SKalle Valo 3141e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3142e705c121SKalle Valo 3143e705c121SKalle Valo txq_id = tid_data->txq_id; 3144e705c121SKalle Valo 3145e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Stop AGG: sta %d tid %d q %d state %d\n", 3146e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 3147e705c121SKalle Valo 3148e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3149e705c121SKalle Valo 31504b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3151e705c121SKalle Valo 3152e705c121SKalle Valo switch (tid_data->state) { 3153e705c121SKalle Valo case IWL_AGG_ON: 3154e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3155e705c121SKalle Valo 3156e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 3157e705c121SKalle Valo "ssn = %d, next_recl = %d\n", 3158e705c121SKalle Valo tid_data->ssn, tid_data->next_reclaimed); 3159e705c121SKalle Valo 3160e705c121SKalle Valo tid_data->ssn = 0xffff; 3161e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3162e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3163e705c121SKalle Valo 3164e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3165e705c121SKalle Valo 3166e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3167e705c121SKalle Valo return 0; 3168e705c121SKalle Valo case IWL_AGG_STARTING: 3169e705c121SKalle Valo case IWL_EMPTYING_HW_QUEUE_ADDBA: 3170e705c121SKalle Valo /* 3171e705c121SKalle Valo * The agg session has been stopped before it was set up. This 3172e705c121SKalle Valo * can happen when the AddBA timer times out for example. 3173e705c121SKalle Valo */ 3174e705c121SKalle Valo 3175e705c121SKalle Valo /* No barriers since we are under mutex */ 3176e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3177e705c121SKalle Valo 3178e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3179e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3180e705c121SKalle Valo err = 0; 3181e705c121SKalle Valo break; 3182e705c121SKalle Valo default: 3183e705c121SKalle Valo IWL_ERR(mvm, 3184e705c121SKalle Valo "Stopping AGG while state not ON or starting for %d on %d (%d)\n", 3185e705c121SKalle Valo mvmsta->sta_id, tid, tid_data->state); 3186e705c121SKalle Valo IWL_ERR(mvm, 3187e705c121SKalle Valo "\ttid_data->txq_id = %d\n", tid_data->txq_id); 3188e705c121SKalle Valo err = -EINVAL; 3189e705c121SKalle Valo } 3190e705c121SKalle Valo 3191e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3192e705c121SKalle Valo 3193e705c121SKalle Valo return err; 3194e705c121SKalle Valo } 3195e705c121SKalle Valo 3196e705c121SKalle Valo int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3197e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3198e705c121SKalle Valo { 3199e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3200e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3201e705c121SKalle Valo u16 txq_id; 3202e705c121SKalle Valo enum iwl_mvm_agg_state old_state; 3203e705c121SKalle Valo 3204e705c121SKalle Valo /* 3205e705c121SKalle Valo * First set the agg state to OFF to avoid calling 3206e705c121SKalle Valo * ieee80211_stop_tx_ba_cb in iwl_mvm_check_ratid_empty. 3207e705c121SKalle Valo */ 3208e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3209e705c121SKalle Valo txq_id = tid_data->txq_id; 3210e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Flush AGG: sta %d tid %d q %d state %d\n", 3211e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 3212e705c121SKalle Valo old_state = tid_data->state; 3213e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3214e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3215e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3216e705c121SKalle Valo 32174b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3218e705c121SKalle Valo 3219e705c121SKalle Valo if (old_state >= IWL_AGG_ON) { 3220e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, true); 3221d167e81aSMordechai Goodstein 3222d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) { 3223d167e81aSMordechai Goodstein if (iwl_mvm_flush_sta_tids(mvm, mvmsta->sta_id, 3224d4e3a341SMordechay Goodstein BIT(tid))) 3225d167e81aSMordechai Goodstein IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 3226d167e81aSMordechai Goodstein iwl_trans_wait_txq_empty(mvm->trans, txq_id); 3227d167e81aSMordechai Goodstein } else { 3228d4e3a341SMordechay Goodstein if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id))) 3229e705c121SKalle Valo IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 32300b90964aSSara Sharon iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(txq_id)); 3231d167e81aSMordechai Goodstein } 3232d6d517b7SSara Sharon 3233e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, false); 3234e705c121SKalle Valo 3235e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3236e705c121SKalle Valo } 3237e705c121SKalle Valo 3238e705c121SKalle Valo return 0; 3239e705c121SKalle Valo } 3240e705c121SKalle Valo 3241e705c121SKalle Valo static int iwl_mvm_set_fw_key_idx(struct iwl_mvm *mvm) 3242e705c121SKalle Valo { 3243e705c121SKalle Valo int i, max = -1, max_offs = -1; 3244e705c121SKalle Valo 3245e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3246e705c121SKalle Valo 3247e705c121SKalle Valo /* Pick the unused key offset with the highest 'deleted' 3248e705c121SKalle Valo * counter. Every time a key is deleted, all the counters 3249e705c121SKalle Valo * are incremented and the one that was just deleted is 3250e705c121SKalle Valo * reset to zero. Thus, the highest counter is the one 3251e705c121SKalle Valo * that was deleted longest ago. Pick that one. 3252e705c121SKalle Valo */ 3253e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3254e705c121SKalle Valo if (test_bit(i, mvm->fw_key_table)) 3255e705c121SKalle Valo continue; 3256e705c121SKalle Valo if (mvm->fw_key_deleted[i] > max) { 3257e705c121SKalle Valo max = mvm->fw_key_deleted[i]; 3258e705c121SKalle Valo max_offs = i; 3259e705c121SKalle Valo } 3260e705c121SKalle Valo } 3261e705c121SKalle Valo 3262e705c121SKalle Valo if (max_offs < 0) 3263e705c121SKalle Valo return STA_KEY_IDX_INVALID; 3264e705c121SKalle Valo 3265e705c121SKalle Valo return max_offs; 3266e705c121SKalle Valo } 3267e705c121SKalle Valo 32685f7a1847SJohannes Berg static struct iwl_mvm_sta *iwl_mvm_get_key_sta(struct iwl_mvm *mvm, 32694615fd15SEmmanuel Grumbach struct ieee80211_vif *vif, 3270e705c121SKalle Valo struct ieee80211_sta *sta) 3271e705c121SKalle Valo { 3272e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3273e705c121SKalle Valo 32745f7a1847SJohannes Berg if (sta) 32755f7a1847SJohannes Berg return iwl_mvm_sta_from_mac80211(sta); 3276e705c121SKalle Valo 3277e705c121SKalle Valo /* 3278e705c121SKalle Valo * The device expects GTKs for station interfaces to be 3279e705c121SKalle Valo * installed as GTKs for the AP station. If we have no 3280e705c121SKalle Valo * station ID, then use AP's station ID. 3281e705c121SKalle Valo */ 3282e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 32830ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 32844615fd15SEmmanuel Grumbach u8 sta_id = mvmvif->ap_sta_id; 32854615fd15SEmmanuel Grumbach 32867d6a1ab6SEmmanuel Grumbach sta = rcu_dereference_check(mvm->fw_id_to_mac_id[sta_id], 32877d6a1ab6SEmmanuel Grumbach lockdep_is_held(&mvm->mutex)); 32887d6a1ab6SEmmanuel Grumbach 32894615fd15SEmmanuel Grumbach /* 32904615fd15SEmmanuel Grumbach * It is possible that the 'sta' parameter is NULL, 32914615fd15SEmmanuel Grumbach * for example when a GTK is removed - the sta_id will then 32924615fd15SEmmanuel Grumbach * be the AP ID, and no station was passed by mac80211. 32934615fd15SEmmanuel Grumbach */ 32947d6a1ab6SEmmanuel Grumbach if (IS_ERR_OR_NULL(sta)) 32957d6a1ab6SEmmanuel Grumbach return NULL; 32967d6a1ab6SEmmanuel Grumbach 32977d6a1ab6SEmmanuel Grumbach return iwl_mvm_sta_from_mac80211(sta); 32984615fd15SEmmanuel Grumbach } 3299e705c121SKalle Valo 33005f7a1847SJohannes Berg return NULL; 3301e705c121SKalle Valo } 3302e705c121SKalle Valo 3303a6dfbd04SJohannes Berg static int iwl_mvm_pn_cmp(const u8 *pn1, const u8 *pn2, int len) 3304a6dfbd04SJohannes Berg { 3305a6dfbd04SJohannes Berg int i; 3306a6dfbd04SJohannes Berg 3307a6dfbd04SJohannes Berg for (i = len - 1; i >= 0; i--) { 3308a6dfbd04SJohannes Berg if (pn1[i] > pn2[i]) 3309a6dfbd04SJohannes Berg return 1; 3310a6dfbd04SJohannes Berg if (pn1[i] < pn2[i]) 3311a6dfbd04SJohannes Berg return -1; 3312a6dfbd04SJohannes Berg } 3313a6dfbd04SJohannes Berg 3314a6dfbd04SJohannes Berg return 0; 3315a6dfbd04SJohannes Berg } 3316a6dfbd04SJohannes Berg 3317e705c121SKalle Valo static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm, 331885aeb58cSDavid Spinadel u32 sta_id, 331945c458b4SSara Sharon struct ieee80211_key_conf *key, bool mcast, 33204615fd15SEmmanuel Grumbach u32 tkip_iv32, u16 *tkip_p1k, u32 cmd_flags, 33214883145aSEmmanuel Grumbach u8 key_offset, bool mfp) 3322e705c121SKalle Valo { 332345c458b4SSara Sharon union { 332445c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 332545c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd cmd; 332645c458b4SSara Sharon } u = {}; 3327e705c121SKalle Valo __le16 key_flags; 3328e705c121SKalle Valo int ret; 3329e705c121SKalle Valo u32 status; 3330e705c121SKalle Valo u16 keyidx; 333145c458b4SSara Sharon u64 pn = 0; 333245c458b4SSara Sharon int i, size; 333345c458b4SSara Sharon bool new_api = fw_has_api(&mvm->fw->ucode_capa, 333445c458b4SSara Sharon IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 3335971cbe50SJohannes Berg int api_ver = iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA_KEY, 3336199d895fSJohannes Berg new_api ? 2 : 1); 3337e705c121SKalle Valo 333885aeb58cSDavid Spinadel if (sta_id == IWL_MVM_INVALID_STA) 333985aeb58cSDavid Spinadel return -EINVAL; 334085aeb58cSDavid Spinadel 334145c458b4SSara Sharon keyidx = (key->keyidx << STA_KEY_FLG_KEYID_POS) & 3342e705c121SKalle Valo STA_KEY_FLG_KEYID_MSK; 3343e705c121SKalle Valo key_flags = cpu_to_le16(keyidx); 3344e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_KEY_MAP); 3345e705c121SKalle Valo 334645c458b4SSara Sharon switch (key->cipher) { 3347e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 3348e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_TKIP); 3349199d895fSJohannes Berg if (api_ver >= 2) { 335045c458b4SSara Sharon memcpy((void *)&u.cmd.tx_mic_key, 335145c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], 335245c458b4SSara Sharon IWL_MIC_KEY_SIZE); 335345c458b4SSara Sharon 335445c458b4SSara Sharon memcpy((void *)&u.cmd.rx_mic_key, 335545c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], 335645c458b4SSara Sharon IWL_MIC_KEY_SIZE); 335745c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 335845c458b4SSara Sharon 335945c458b4SSara Sharon } else { 336045c458b4SSara Sharon u.cmd_v1.tkip_rx_tsc_byte2 = tkip_iv32; 3361e705c121SKalle Valo for (i = 0; i < 5; i++) 336245c458b4SSara Sharon u.cmd_v1.tkip_rx_ttak[i] = 336345c458b4SSara Sharon cpu_to_le16(tkip_p1k[i]); 336445c458b4SSara Sharon } 336545c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3366e705c121SKalle Valo break; 3367e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 3368e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_CCM); 336945c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3370199d895fSJohannes Berg if (api_ver >= 2) 337145c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 3372e705c121SKalle Valo break; 3373e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 3374e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_13BYTES); 33755a2abdcaSGustavo A. R. Silva fallthrough; 3376e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 3377e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP); 337845c458b4SSara Sharon memcpy(u.cmd.common.key + 3, key->key, key->keylen); 3379e705c121SKalle Valo break; 33802a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 33812a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_KEY_32BYTES); 33825a2abdcaSGustavo A. R. Silva fallthrough; 33832a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 33842a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_GCMP); 338545c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3386199d895fSJohannes Berg if (api_ver >= 2) 338745c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 33882a53d166SAyala Beker break; 3389e705c121SKalle Valo default: 3390e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_EXT); 339145c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3392e705c121SKalle Valo } 3393e705c121SKalle Valo 3394e705c121SKalle Valo if (mcast) 3395e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 33964883145aSEmmanuel Grumbach if (mfp) 33974883145aSEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MFP); 3398e705c121SKalle Valo 339945c458b4SSara Sharon u.cmd.common.key_offset = key_offset; 340045c458b4SSara Sharon u.cmd.common.key_flags = key_flags; 340185aeb58cSDavid Spinadel u.cmd.common.sta_id = sta_id; 340245c458b4SSara Sharon 3403a6dfbd04SJohannes Berg if (key->cipher == WLAN_CIPHER_SUITE_TKIP) 3404a6dfbd04SJohannes Berg i = 0; 3405a6dfbd04SJohannes Berg else 3406a6dfbd04SJohannes Berg i = -1; 3407a6dfbd04SJohannes Berg 3408a6dfbd04SJohannes Berg for (; i < IEEE80211_NUM_TIDS; i++) { 3409a6dfbd04SJohannes Berg struct ieee80211_key_seq seq = {}; 3410a6dfbd04SJohannes Berg u8 _rx_pn[IEEE80211_MAX_PN_LEN] = {}, *rx_pn = _rx_pn; 3411a6dfbd04SJohannes Berg int rx_pn_len = 8; 3412199d895fSJohannes Berg /* there's a hole at 2/3 in FW format depending on version */ 3413199d895fSJohannes Berg int hole = api_ver >= 3 ? 0 : 2; 3414a6dfbd04SJohannes Berg 3415a6dfbd04SJohannes Berg ieee80211_get_key_rx_seq(key, i, &seq); 3416a6dfbd04SJohannes Berg 3417a6dfbd04SJohannes Berg if (key->cipher == WLAN_CIPHER_SUITE_TKIP) { 3418a6dfbd04SJohannes Berg rx_pn[0] = seq.tkip.iv16; 3419a6dfbd04SJohannes Berg rx_pn[1] = seq.tkip.iv16 >> 8; 3420199d895fSJohannes Berg rx_pn[2 + hole] = seq.tkip.iv32; 3421199d895fSJohannes Berg rx_pn[3 + hole] = seq.tkip.iv32 >> 8; 3422199d895fSJohannes Berg rx_pn[4 + hole] = seq.tkip.iv32 >> 16; 3423199d895fSJohannes Berg rx_pn[5 + hole] = seq.tkip.iv32 >> 24; 3424a6dfbd04SJohannes Berg } else if (key_flags & cpu_to_le16(STA_KEY_FLG_EXT)) { 3425a6dfbd04SJohannes Berg rx_pn = seq.hw.seq; 3426a6dfbd04SJohannes Berg rx_pn_len = seq.hw.seq_len; 3427a6dfbd04SJohannes Berg } else { 3428a6dfbd04SJohannes Berg rx_pn[0] = seq.ccmp.pn[0]; 3429a6dfbd04SJohannes Berg rx_pn[1] = seq.ccmp.pn[1]; 3430199d895fSJohannes Berg rx_pn[2 + hole] = seq.ccmp.pn[2]; 3431199d895fSJohannes Berg rx_pn[3 + hole] = seq.ccmp.pn[3]; 3432199d895fSJohannes Berg rx_pn[4 + hole] = seq.ccmp.pn[4]; 3433199d895fSJohannes Berg rx_pn[5 + hole] = seq.ccmp.pn[5]; 3434a6dfbd04SJohannes Berg } 3435a6dfbd04SJohannes Berg 3436a6dfbd04SJohannes Berg if (iwl_mvm_pn_cmp(rx_pn, (u8 *)&u.cmd.common.rx_secur_seq_cnt, 3437a6dfbd04SJohannes Berg rx_pn_len) > 0) 3438a6dfbd04SJohannes Berg memcpy(&u.cmd.common.rx_secur_seq_cnt, rx_pn, 3439a6dfbd04SJohannes Berg rx_pn_len); 3440a6dfbd04SJohannes Berg } 3441a6dfbd04SJohannes Berg 3442199d895fSJohannes Berg if (api_ver >= 2) { 344345c458b4SSara Sharon u.cmd.transmit_seq_cnt = cpu_to_le64(pn); 344445c458b4SSara Sharon size = sizeof(u.cmd); 344545c458b4SSara Sharon } else { 344645c458b4SSara Sharon size = sizeof(u.cmd_v1); 344745c458b4SSara Sharon } 3448e705c121SKalle Valo 3449e705c121SKalle Valo status = ADD_STA_SUCCESS; 3450e705c121SKalle Valo if (cmd_flags & CMD_ASYNC) 345145c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA_KEY, CMD_ASYNC, size, 345245c458b4SSara Sharon &u.cmd); 3453e705c121SKalle Valo else 345445c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, 345545c458b4SSara Sharon &u.cmd, &status); 3456e705c121SKalle Valo 3457e705c121SKalle Valo switch (status) { 3458e705c121SKalle Valo case ADD_STA_SUCCESS: 3459e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "MODIFY_STA: set dynamic key passed\n"); 3460e705c121SKalle Valo break; 3461e705c121SKalle Valo default: 3462e705c121SKalle Valo ret = -EIO; 3463e705c121SKalle Valo IWL_ERR(mvm, "MODIFY_STA: set dynamic key failed\n"); 3464e705c121SKalle Valo break; 3465e705c121SKalle Valo } 3466e705c121SKalle Valo 3467e705c121SKalle Valo return ret; 3468e705c121SKalle Valo } 3469e705c121SKalle Valo 3470e705c121SKalle Valo static int iwl_mvm_send_sta_igtk(struct iwl_mvm *mvm, 3471e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3472e705c121SKalle Valo u8 sta_id, bool remove_key) 3473e705c121SKalle Valo { 3474e705c121SKalle Valo struct iwl_mvm_mgmt_mcast_key_cmd igtk_cmd = {}; 3475e705c121SKalle Valo 3476e705c121SKalle Valo /* verify the key details match the required command's expectations */ 34778e160ab8SAyala Beker if (WARN_ON((keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) || 3478b1fdc250SJohannes Berg (keyconf->keyidx != 4 && keyconf->keyidx != 5 && 3479b1fdc250SJohannes Berg keyconf->keyidx != 6 && keyconf->keyidx != 7) || 34808e160ab8SAyala Beker (keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC && 34818e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_128 && 34828e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_256))) 34838e160ab8SAyala Beker return -EINVAL; 34848e160ab8SAyala Beker 34858e160ab8SAyala Beker if (WARN_ON(!iwl_mvm_has_new_rx_api(mvm) && 34868e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC)) 3487e705c121SKalle Valo return -EINVAL; 3488e705c121SKalle Valo 3489e705c121SKalle Valo igtk_cmd.key_id = cpu_to_le32(keyconf->keyidx); 3490e705c121SKalle Valo igtk_cmd.sta_id = cpu_to_le32(sta_id); 3491e705c121SKalle Valo 3492e705c121SKalle Valo if (remove_key) { 3493197288d5SLuca Coelho /* This is a valid situation for IGTK */ 3494197288d5SLuca Coelho if (sta_id == IWL_MVM_INVALID_STA) 3495197288d5SLuca Coelho return 0; 3496197288d5SLuca Coelho 3497e705c121SKalle Valo igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_NOT_VALID); 3498e705c121SKalle Valo } else { 3499e705c121SKalle Valo struct ieee80211_key_seq seq; 3500e705c121SKalle Valo const u8 *pn; 3501e705c121SKalle Valo 3502aa950524SAyala Beker switch (keyconf->cipher) { 3503aa950524SAyala Beker case WLAN_CIPHER_SUITE_AES_CMAC: 3504aa950524SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_CCM); 3505aa950524SAyala Beker break; 35068e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_128: 35078e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_256: 35088e160ab8SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_GCMP); 35098e160ab8SAyala Beker break; 3510aa950524SAyala Beker default: 3511aa950524SAyala Beker return -EINVAL; 3512aa950524SAyala Beker } 3513aa950524SAyala Beker 35148e160ab8SAyala Beker memcpy(igtk_cmd.igtk, keyconf->key, keyconf->keylen); 35158e160ab8SAyala Beker if (keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 35168e160ab8SAyala Beker igtk_cmd.ctrl_flags |= 35178e160ab8SAyala Beker cpu_to_le32(STA_KEY_FLG_KEY_32BYTES); 3518e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3519e705c121SKalle Valo pn = seq.aes_cmac.pn; 3520e705c121SKalle Valo igtk_cmd.receive_seq_cnt = cpu_to_le64(((u64) pn[5] << 0) | 3521e705c121SKalle Valo ((u64) pn[4] << 8) | 3522e705c121SKalle Valo ((u64) pn[3] << 16) | 3523e705c121SKalle Valo ((u64) pn[2] << 24) | 3524e705c121SKalle Valo ((u64) pn[1] << 32) | 3525e705c121SKalle Valo ((u64) pn[0] << 40)); 3526e705c121SKalle Valo } 3527e705c121SKalle Valo 3528b1fdc250SJohannes Berg IWL_DEBUG_INFO(mvm, "%s %sIGTK (%d) for sta %u\n", 3529e705c121SKalle Valo remove_key ? "removing" : "installing", 3530b1fdc250SJohannes Berg keyconf->keyidx >= 6 ? "B" : "", 3531b1fdc250SJohannes Berg keyconf->keyidx, igtk_cmd.sta_id); 3532e705c121SKalle Valo 35338e160ab8SAyala Beker if (!iwl_mvm_has_new_rx_api(mvm)) { 35348e160ab8SAyala Beker struct iwl_mvm_mgmt_mcast_key_cmd_v1 igtk_cmd_v1 = { 35358e160ab8SAyala Beker .ctrl_flags = igtk_cmd.ctrl_flags, 35368e160ab8SAyala Beker .key_id = igtk_cmd.key_id, 35378e160ab8SAyala Beker .sta_id = igtk_cmd.sta_id, 35388e160ab8SAyala Beker .receive_seq_cnt = igtk_cmd.receive_seq_cnt 35398e160ab8SAyala Beker }; 35408e160ab8SAyala Beker 35418e160ab8SAyala Beker memcpy(igtk_cmd_v1.igtk, igtk_cmd.igtk, 35428e160ab8SAyala Beker ARRAY_SIZE(igtk_cmd_v1.igtk)); 35438e160ab8SAyala Beker return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 35448e160ab8SAyala Beker sizeof(igtk_cmd_v1), &igtk_cmd_v1); 35458e160ab8SAyala Beker } 3546e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 3547e705c121SKalle Valo sizeof(igtk_cmd), &igtk_cmd); 3548e705c121SKalle Valo } 3549e705c121SKalle Valo 3550e705c121SKalle Valo 3551e705c121SKalle Valo static inline u8 *iwl_mvm_get_mac_addr(struct iwl_mvm *mvm, 3552e705c121SKalle Valo struct ieee80211_vif *vif, 3553e705c121SKalle Valo struct ieee80211_sta *sta) 3554e705c121SKalle Valo { 3555e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3556e705c121SKalle Valo 3557e705c121SKalle Valo if (sta) 3558e705c121SKalle Valo return sta->addr; 3559e705c121SKalle Valo 3560e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 35610ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 3562e705c121SKalle Valo u8 sta_id = mvmvif->ap_sta_id; 3563e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 3564e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3565e705c121SKalle Valo return sta->addr; 3566e705c121SKalle Valo } 3567e705c121SKalle Valo 3568e705c121SKalle Valo 3569e705c121SKalle Valo return NULL; 3570e705c121SKalle Valo } 3571e705c121SKalle Valo 3572e705c121SKalle Valo static int __iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3573e705c121SKalle Valo struct ieee80211_vif *vif, 3574e705c121SKalle Valo struct ieee80211_sta *sta, 3575e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 35764615fd15SEmmanuel Grumbach u8 key_offset, 3577e705c121SKalle Valo bool mcast) 3578e705c121SKalle Valo { 3579e705c121SKalle Valo const u8 *addr; 3580e705c121SKalle Valo struct ieee80211_key_seq seq; 3581e705c121SKalle Valo u16 p1k[5]; 358285aeb58cSDavid Spinadel u32 sta_id; 35834883145aSEmmanuel Grumbach bool mfp = false; 358485aeb58cSDavid Spinadel 358585aeb58cSDavid Spinadel if (sta) { 358685aeb58cSDavid Spinadel struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 358785aeb58cSDavid Spinadel 358885aeb58cSDavid Spinadel sta_id = mvm_sta->sta_id; 35894883145aSEmmanuel Grumbach mfp = sta->mfp; 359085aeb58cSDavid Spinadel } else if (vif->type == NL80211_IFTYPE_AP && 359185aeb58cSDavid Spinadel !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { 359285aeb58cSDavid Spinadel struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 359385aeb58cSDavid Spinadel 359485aeb58cSDavid Spinadel sta_id = mvmvif->mcast_sta.sta_id; 359585aeb58cSDavid Spinadel } else { 359685aeb58cSDavid Spinadel IWL_ERR(mvm, "Failed to find station id\n"); 359785aeb58cSDavid Spinadel return -EINVAL; 359885aeb58cSDavid Spinadel } 3599e705c121SKalle Valo 360095a62c33SJohannes Berg if (keyconf->cipher == WLAN_CIPHER_SUITE_TKIP) { 3601e705c121SKalle Valo addr = iwl_mvm_get_mac_addr(mvm, vif, sta); 3602e705c121SKalle Valo /* get phase 1 key from mac80211 */ 3603e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3604e705c121SKalle Valo ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k); 360595a62c33SJohannes Berg 360695a62c33SJohannes Berg return iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 36074883145aSEmmanuel Grumbach seq.tkip.iv32, p1k, 0, key_offset, 36084883145aSEmmanuel Grumbach mfp); 3609e705c121SKalle Valo } 3610e705c121SKalle Valo 361195a62c33SJohannes Berg return iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 361295a62c33SJohannes Berg 0, NULL, 0, key_offset, mfp); 3613e705c121SKalle Valo } 3614e705c121SKalle Valo 3615e705c121SKalle Valo int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3616e705c121SKalle Valo struct ieee80211_vif *vif, 3617e705c121SKalle Valo struct ieee80211_sta *sta, 3618e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 36194615fd15SEmmanuel Grumbach u8 key_offset) 3620e705c121SKalle Valo { 3621e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 36225f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 362385aeb58cSDavid Spinadel u8 sta_id = IWL_MVM_INVALID_STA; 3624e705c121SKalle Valo int ret; 3625e705c121SKalle Valo static const u8 __maybe_unused zero_addr[ETH_ALEN] = {0}; 3626e705c121SKalle Valo 3627e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3628e705c121SKalle Valo 362985aeb58cSDavid Spinadel if (vif->type != NL80211_IFTYPE_AP || 363085aeb58cSDavid Spinadel keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) { 3631e705c121SKalle Valo /* Get the station id from the mvm local station table */ 36325f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 36335f7a1847SJohannes Berg if (!mvm_sta) { 36345f7a1847SJohannes Berg IWL_ERR(mvm, "Failed to find station\n"); 3635e705c121SKalle Valo return -EINVAL; 3636e705c121SKalle Valo } 36375f7a1847SJohannes Berg sta_id = mvm_sta->sta_id; 3638e705c121SKalle Valo 3639e705c121SKalle Valo /* 3640e705c121SKalle Valo * It is possible that the 'sta' parameter is NULL, and thus 364185aeb58cSDavid Spinadel * there is a need to retrieve the sta from the local station 364285aeb58cSDavid Spinadel * table. 3643e705c121SKalle Valo */ 3644e705c121SKalle Valo if (!sta) { 364585aeb58cSDavid Spinadel sta = rcu_dereference_protected( 364685aeb58cSDavid Spinadel mvm->fw_id_to_mac_id[sta_id], 3647e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3648e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) { 3649e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 3650e705c121SKalle Valo return -EINVAL; 3651e705c121SKalle Valo } 3652e705c121SKalle Valo } 3653e705c121SKalle Valo 3654e705c121SKalle Valo if (WARN_ON_ONCE(iwl_mvm_sta_from_mac80211(sta)->vif != vif)) 3655e705c121SKalle Valo return -EINVAL; 3656e829b17cSBeni Lev } else { 3657e829b17cSBeni Lev struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3658e829b17cSBeni Lev 3659e829b17cSBeni Lev sta_id = mvmvif->mcast_sta.sta_id; 3660e829b17cSBeni Lev } 3661e829b17cSBeni Lev 3662e829b17cSBeni Lev if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3663e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3664e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) { 3665e829b17cSBeni Lev ret = iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, false); 3666e829b17cSBeni Lev goto end; 366785aeb58cSDavid Spinadel } 3668e705c121SKalle Valo 36694615fd15SEmmanuel Grumbach /* If the key_offset is not pre-assigned, we need to find a 36704615fd15SEmmanuel Grumbach * new offset to use. In normal cases, the offset is not 36714615fd15SEmmanuel Grumbach * pre-assigned, but during HW_RESTART we want to reuse the 36724615fd15SEmmanuel Grumbach * same indices, so we pass them when this function is called. 36734615fd15SEmmanuel Grumbach * 36744615fd15SEmmanuel Grumbach * In D3 entry, we need to hardcoded the indices (because the 36754615fd15SEmmanuel Grumbach * firmware hardcodes the PTK offset to 0). In this case, we 36764615fd15SEmmanuel Grumbach * need to make sure we don't overwrite the hw_key_idx in the 36774615fd15SEmmanuel Grumbach * keyconf structure, because otherwise we cannot configure 36784615fd15SEmmanuel Grumbach * the original ones back when resuming. 3679e705c121SKalle Valo */ 36804615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) { 36814615fd15SEmmanuel Grumbach key_offset = iwl_mvm_set_fw_key_idx(mvm); 36824615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) 3683e705c121SKalle Valo return -ENOSPC; 36844615fd15SEmmanuel Grumbach keyconf->hw_key_idx = key_offset; 3685e705c121SKalle Valo } 3686e705c121SKalle Valo 36874615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, key_offset, mcast); 36889c3deeb5SLuca Coelho if (ret) 3689e705c121SKalle Valo goto end; 3690e705c121SKalle Valo 3691e705c121SKalle Valo /* 3692e705c121SKalle Valo * For WEP, the same key is used for multicast and unicast. Upload it 3693e705c121SKalle Valo * again, using the same key offset, and now pointing the other one 3694e705c121SKalle Valo * to the same key slot (offset). 3695e705c121SKalle Valo * If this fails, remove the original as well. 3696e705c121SKalle Valo */ 369785aeb58cSDavid Spinadel if ((keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 369885aeb58cSDavid Spinadel keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) && 369985aeb58cSDavid Spinadel sta) { 37004615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, 37014615fd15SEmmanuel Grumbach key_offset, !mcast); 3702e705c121SKalle Valo if (ret) { 3703e705c121SKalle Valo __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 37049c3deeb5SLuca Coelho goto end; 3705e705c121SKalle Valo } 3706e705c121SKalle Valo } 3707e705c121SKalle Valo 37089c3deeb5SLuca Coelho __set_bit(key_offset, mvm->fw_key_table); 37099c3deeb5SLuca Coelho 3710e705c121SKalle Valo end: 3711e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "key: cipher=%x len=%d idx=%d sta=%pM ret=%d\n", 3712e705c121SKalle Valo keyconf->cipher, keyconf->keylen, keyconf->keyidx, 3713e705c121SKalle Valo sta ? sta->addr : zero_addr, ret); 3714e705c121SKalle Valo return ret; 3715e705c121SKalle Valo } 3716e705c121SKalle Valo 3717e705c121SKalle Valo int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, 3718e705c121SKalle Valo struct ieee80211_vif *vif, 3719e705c121SKalle Valo struct ieee80211_sta *sta, 3720e705c121SKalle Valo struct ieee80211_key_conf *keyconf) 3721e705c121SKalle Valo { 3722e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 37235f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 37240ae98812SSara Sharon u8 sta_id = IWL_MVM_INVALID_STA; 3725e705c121SKalle Valo int ret, i; 3726e705c121SKalle Valo 3727e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3728e705c121SKalle Valo 37295f7a1847SJohannes Berg /* Get the station from the mvm local station table */ 37305f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 373171793b7dSLuca Coelho if (mvm_sta) 3732cd4d23c1SIlan Peer sta_id = mvm_sta->sta_id; 373385aeb58cSDavid Spinadel else if (!sta && vif->type == NL80211_IFTYPE_AP && mcast) 373485aeb58cSDavid Spinadel sta_id = iwl_mvm_vif_from_mac80211(vif)->mcast_sta.sta_id; 373585aeb58cSDavid Spinadel 3736e705c121SKalle Valo 3737e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "mvm remove dynamic key: idx=%d sta=%d\n", 3738e705c121SKalle Valo keyconf->keyidx, sta_id); 3739e705c121SKalle Valo 3740197288d5SLuca Coelho if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 37418e160ab8SAyala Beker keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3742197288d5SLuca Coelho keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 3743e705c121SKalle Valo return iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, true); 3744e705c121SKalle Valo 3745e705c121SKalle Valo if (!__test_and_clear_bit(keyconf->hw_key_idx, mvm->fw_key_table)) { 3746e705c121SKalle Valo IWL_ERR(mvm, "offset %d not used in fw key table.\n", 3747e705c121SKalle Valo keyconf->hw_key_idx); 3748e705c121SKalle Valo return -ENOENT; 3749e705c121SKalle Valo } 3750e705c121SKalle Valo 3751e705c121SKalle Valo /* track which key was deleted last */ 3752e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3753e705c121SKalle Valo if (mvm->fw_key_deleted[i] < U8_MAX) 3754e705c121SKalle Valo mvm->fw_key_deleted[i]++; 3755e705c121SKalle Valo } 3756e705c121SKalle Valo mvm->fw_key_deleted[keyconf->hw_key_idx] = 0; 3757e705c121SKalle Valo 375885aeb58cSDavid Spinadel if (sta && !mvm_sta) { 3759e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "station non-existent, early return.\n"); 3760e705c121SKalle Valo return 0; 3761e705c121SKalle Valo } 3762e705c121SKalle Valo 3763e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 3764e705c121SKalle Valo if (ret) 3765e705c121SKalle Valo return ret; 3766e705c121SKalle Valo 3767e705c121SKalle Valo /* delete WEP key twice to get rid of (now useless) offset */ 3768e705c121SKalle Valo if (keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 3769e705c121SKalle Valo keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) 3770e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, !mcast); 3771e705c121SKalle Valo 3772e705c121SKalle Valo return ret; 3773e705c121SKalle Valo } 3774e705c121SKalle Valo 3775e705c121SKalle Valo void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, 3776e705c121SKalle Valo struct ieee80211_vif *vif, 3777e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3778e705c121SKalle Valo struct ieee80211_sta *sta, u32 iv32, 3779e705c121SKalle Valo u16 *phase1key) 3780e705c121SKalle Valo { 3781e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3782e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 37834883145aSEmmanuel Grumbach bool mfp = sta ? sta->mfp : false; 3784e705c121SKalle Valo 3785e705c121SKalle Valo rcu_read_lock(); 3786e705c121SKalle Valo 37875f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 37885f7a1847SJohannes Berg if (WARN_ON_ONCE(!mvm_sta)) 378912f17211SEmmanuel Grumbach goto unlock; 379085aeb58cSDavid Spinadel iwl_mvm_send_sta_key(mvm, mvm_sta->sta_id, keyconf, mcast, 37914883145aSEmmanuel Grumbach iv32, phase1key, CMD_ASYNC, keyconf->hw_key_idx, 37924883145aSEmmanuel Grumbach mfp); 379312f17211SEmmanuel Grumbach 379412f17211SEmmanuel Grumbach unlock: 3795e705c121SKalle Valo rcu_read_unlock(); 3796e705c121SKalle Valo } 3797e705c121SKalle Valo 3798e705c121SKalle Valo void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, 3799e705c121SKalle Valo struct ieee80211_sta *sta) 3800e705c121SKalle Valo { 3801e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3802e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3803e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3804e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3805e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_PS), 3806e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3807e705c121SKalle Valo }; 3808e705c121SKalle Valo int ret; 3809e705c121SKalle Valo 3810854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3811854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3812e705c121SKalle Valo if (ret) 3813e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3814e705c121SKalle Valo } 3815e705c121SKalle Valo 3816e705c121SKalle Valo void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, 3817e705c121SKalle Valo struct ieee80211_sta *sta, 3818e705c121SKalle Valo enum ieee80211_frame_release_type reason, 3819e705c121SKalle Valo u16 cnt, u16 tids, bool more_data, 38209a3fcf91SSara Sharon bool single_sta_queue) 3821e705c121SKalle Valo { 3822e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3823e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3824e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3825e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3826e705c121SKalle Valo .modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT, 3827e705c121SKalle Valo .sleep_tx_count = cpu_to_le16(cnt), 3828e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3829e705c121SKalle Valo }; 3830e705c121SKalle Valo int tid, ret; 3831e705c121SKalle Valo unsigned long _tids = tids; 3832e705c121SKalle Valo 3833e705c121SKalle Valo /* convert TIDs to ACs - we don't support TSPEC so that's OK 3834e705c121SKalle Valo * Note that this field is reserved and unused by firmware not 3835e705c121SKalle Valo * supporting GO uAPSD, so it's safe to always do this. 3836e705c121SKalle Valo */ 3837e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) 3838e705c121SKalle Valo cmd.awake_acs |= BIT(tid_to_ucode_ac[tid]); 3839e705c121SKalle Valo 38409a3fcf91SSara Sharon /* If we're releasing frames from aggregation or dqa queues then check 38419a3fcf91SSara Sharon * if all the queues that we're releasing frames from, combined, have: 3842e705c121SKalle Valo * - more frames than the service period, in which case more_data 3843e705c121SKalle Valo * needs to be set 3844e705c121SKalle Valo * - fewer than 'cnt' frames, in which case we need to adjust the 3845e705c121SKalle Valo * firmware command (but do that unconditionally) 3846e705c121SKalle Valo */ 38479a3fcf91SSara Sharon if (single_sta_queue) { 3848e705c121SKalle Valo int remaining = cnt; 384936be0eb6SEmmanuel Grumbach int sleep_tx_count; 3850e705c121SKalle Valo 3851e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3852e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) { 3853e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 3854e705c121SKalle Valo u16 n_queued; 3855e705c121SKalle Valo 3856e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 3857e705c121SKalle Valo 3858dd32162dSLiad Kaufman n_queued = iwl_mvm_tid_queued(mvm, tid_data); 3859e705c121SKalle Valo if (n_queued > remaining) { 3860e705c121SKalle Valo more_data = true; 3861e705c121SKalle Valo remaining = 0; 3862e705c121SKalle Valo break; 3863e705c121SKalle Valo } 3864e705c121SKalle Valo remaining -= n_queued; 3865e705c121SKalle Valo } 386636be0eb6SEmmanuel Grumbach sleep_tx_count = cnt - remaining; 386736be0eb6SEmmanuel Grumbach if (reason == IEEE80211_FRAME_RELEASE_UAPSD) 386836be0eb6SEmmanuel Grumbach mvmsta->sleep_tx_count = sleep_tx_count; 3869e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3870e705c121SKalle Valo 387136be0eb6SEmmanuel Grumbach cmd.sleep_tx_count = cpu_to_le16(sleep_tx_count); 3872e705c121SKalle Valo if (WARN_ON(cnt - remaining == 0)) { 3873e705c121SKalle Valo ieee80211_sta_eosp(sta); 3874e705c121SKalle Valo return; 3875e705c121SKalle Valo } 3876e705c121SKalle Valo } 3877e705c121SKalle Valo 3878e705c121SKalle Valo /* Note: this is ignored by firmware not supporting GO uAPSD */ 3879e705c121SKalle Valo if (more_data) 3880ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_MOREDATA; 3881e705c121SKalle Valo 3882e705c121SKalle Valo if (reason == IEEE80211_FRAME_RELEASE_PSPOLL) { 3883e705c121SKalle Valo mvmsta->next_status_eosp = true; 3884ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_PS_POLL; 3885e705c121SKalle Valo } else { 3886ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_UAPSD; 3887e705c121SKalle Valo } 3888e705c121SKalle Valo 3889156f92f2SEmmanuel Grumbach /* block the Tx queues until the FW updated the sleep Tx count */ 3890156f92f2SEmmanuel Grumbach iwl_trans_block_txq_ptrs(mvm->trans, true); 3891156f92f2SEmmanuel Grumbach 3892156f92f2SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 3893156f92f2SEmmanuel Grumbach CMD_ASYNC | CMD_WANT_ASYNC_CALLBACK, 3894854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3895e705c121SKalle Valo if (ret) 3896e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3897e705c121SKalle Valo } 3898e705c121SKalle Valo 3899e705c121SKalle Valo void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm, 3900e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 3901e705c121SKalle Valo { 3902e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 3903e705c121SKalle Valo struct iwl_mvm_eosp_notification *notif = (void *)pkt->data; 3904e705c121SKalle Valo struct ieee80211_sta *sta; 3905e705c121SKalle Valo u32 sta_id = le32_to_cpu(notif->sta_id); 3906e705c121SKalle Valo 3907be9ae34eSNathan Errera if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 3908e705c121SKalle Valo return; 3909e705c121SKalle Valo 3910e705c121SKalle Valo rcu_read_lock(); 3911e705c121SKalle Valo sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 3912e705c121SKalle Valo if (!IS_ERR_OR_NULL(sta)) 3913e705c121SKalle Valo ieee80211_sta_eosp(sta); 3914e705c121SKalle Valo rcu_read_unlock(); 3915e705c121SKalle Valo } 3916e705c121SKalle Valo 3917e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm, 3918e705c121SKalle Valo struct iwl_mvm_sta *mvmsta, bool disable) 3919e705c121SKalle Valo { 3920e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3921e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3922e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3923e705c121SKalle Valo .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 3924e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 3925e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3926e705c121SKalle Valo }; 3927e705c121SKalle Valo int ret; 3928e705c121SKalle Valo 3929854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3930854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3931e705c121SKalle Valo if (ret) 3932e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3933e705c121SKalle Valo } 3934e705c121SKalle Valo 3935e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm, 3936e705c121SKalle Valo struct ieee80211_sta *sta, 3937e705c121SKalle Valo bool disable) 3938e705c121SKalle Valo { 3939e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3940e705c121SKalle Valo 3941e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 3942e705c121SKalle Valo 3943e705c121SKalle Valo if (mvm_sta->disable_tx == disable) { 3944e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 3945e705c121SKalle Valo return; 3946e705c121SKalle Valo } 3947e705c121SKalle Valo 3948e705c121SKalle Valo mvm_sta->disable_tx = disable; 3949e705c121SKalle Valo 3950b1c6cec0SNaftali Goldstein /* 3951b1c6cec0SNaftali Goldstein * If sta PS state is handled by mac80211, tell it to start/stop 3952b1c6cec0SNaftali Goldstein * queuing tx for this station. 3953b1c6cec0SNaftali Goldstein */ 3954b1c6cec0SNaftali Goldstein if (!ieee80211_hw_check(mvm->hw, AP_LINK_PS)) 3955e705c121SKalle Valo ieee80211_sta_block_awake(mvm->hw, sta, disable); 3956e705c121SKalle Valo 3957e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvm_sta, disable); 3958e705c121SKalle Valo 3959e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 3960e705c121SKalle Valo } 3961e705c121SKalle Valo 3962ced19f26SSara Sharon static void iwl_mvm_int_sta_modify_disable_tx(struct iwl_mvm *mvm, 3963ced19f26SSara Sharon struct iwl_mvm_vif *mvmvif, 3964ced19f26SSara Sharon struct iwl_mvm_int_sta *sta, 3965ced19f26SSara Sharon bool disable) 3966ced19f26SSara Sharon { 3967ced19f26SSara Sharon u32 id = FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color); 3968ced19f26SSara Sharon struct iwl_mvm_add_sta_cmd cmd = { 3969ced19f26SSara Sharon .add_modify = STA_MODE_MODIFY, 3970ced19f26SSara Sharon .sta_id = sta->sta_id, 3971ced19f26SSara Sharon .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 3972ced19f26SSara Sharon .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 3973ced19f26SSara Sharon .mac_id_n_color = cpu_to_le32(id), 3974ced19f26SSara Sharon }; 3975ced19f26SSara Sharon int ret; 3976ced19f26SSara Sharon 3977e5d153ecSEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3978ced19f26SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3979ced19f26SSara Sharon if (ret) 3980ced19f26SSara Sharon IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3981ced19f26SSara Sharon } 3982ced19f26SSara Sharon 3983e705c121SKalle Valo void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm, 3984e705c121SKalle Valo struct iwl_mvm_vif *mvmvif, 3985e705c121SKalle Valo bool disable) 3986e705c121SKalle Valo { 3987e705c121SKalle Valo struct ieee80211_sta *sta; 3988e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3989e705c121SKalle Valo int i; 3990e705c121SKalle Valo 3991e5d153ecSEmmanuel Grumbach rcu_read_lock(); 3992e705c121SKalle Valo 3993e705c121SKalle Valo /* Block/unblock all the stations of the given mvmvif */ 3994be9ae34eSNathan Errera for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 3995e5d153ecSEmmanuel Grumbach sta = rcu_dereference(mvm->fw_id_to_mac_id[i]); 3996e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) 3997e705c121SKalle Valo continue; 3998e705c121SKalle Valo 3999e705c121SKalle Valo mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4000e705c121SKalle Valo if (mvm_sta->mac_id_n_color != 4001e705c121SKalle Valo FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)) 4002e705c121SKalle Valo continue; 4003e705c121SKalle Valo 4004e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx_ap(mvm, sta, disable); 4005e705c121SKalle Valo } 4006ced19f26SSara Sharon 4007e5d153ecSEmmanuel Grumbach rcu_read_unlock(); 4008e5d153ecSEmmanuel Grumbach 4009ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 4010ced19f26SSara Sharon return; 4011ced19f26SSara Sharon 4012ced19f26SSara Sharon /* Need to block/unblock also multicast station */ 4013ced19f26SSara Sharon if (mvmvif->mcast_sta.sta_id != IWL_MVM_INVALID_STA) 4014ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 4015ced19f26SSara Sharon &mvmvif->mcast_sta, disable); 4016ced19f26SSara Sharon 4017ced19f26SSara Sharon /* 4018ced19f26SSara Sharon * Only unblock the broadcast station (FW blocks it for immediate 4019ced19f26SSara Sharon * quiet, not the driver) 4020ced19f26SSara Sharon */ 4021ced19f26SSara Sharon if (!disable && mvmvif->bcast_sta.sta_id != IWL_MVM_INVALID_STA) 4022ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 4023ced19f26SSara Sharon &mvmvif->bcast_sta, disable); 4024e705c121SKalle Valo } 4025e705c121SKalle Valo 4026e705c121SKalle Valo void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4027e705c121SKalle Valo { 4028e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4029e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 4030e705c121SKalle Valo 4031e705c121SKalle Valo rcu_read_lock(); 4032e705c121SKalle Valo 4033e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->ap_sta_id); 4034e705c121SKalle Valo 4035ad12b231SNathan Errera if (mvmsta) 4036e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true); 4037e705c121SKalle Valo 4038e705c121SKalle Valo rcu_read_unlock(); 4039e705c121SKalle Valo } 4040dd32162dSLiad Kaufman 4041dd32162dSLiad Kaufman u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data) 4042dd32162dSLiad Kaufman { 4043dd32162dSLiad Kaufman u16 sn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 4044dd32162dSLiad Kaufman 4045dd32162dSLiad Kaufman /* 40462f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 4047dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 4048dd32162dSLiad Kaufman */ 4049286ca8ebSLuca Coelho if (mvm->trans->trans_cfg->gen2) 4050dd32162dSLiad Kaufman sn &= 0xff; 4051dd32162dSLiad Kaufman 4052dd32162dSLiad Kaufman return ieee80211_sn_sub(sn, tid_data->next_reclaimed); 4053dd32162dSLiad Kaufman } 4054be82ecd3SAvraham Stern 4055be82ecd3SAvraham Stern int iwl_mvm_add_pasn_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 4056be82ecd3SAvraham Stern struct iwl_mvm_int_sta *sta, u8 *addr, u32 cipher, 4057be82ecd3SAvraham Stern u8 *key, u32 key_len) 4058be82ecd3SAvraham Stern { 4059be82ecd3SAvraham Stern int ret; 4060be82ecd3SAvraham Stern u16 queue; 4061be82ecd3SAvraham Stern struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4062be82ecd3SAvraham Stern struct ieee80211_key_conf *keyconf; 4063be82ecd3SAvraham Stern 4064be82ecd3SAvraham Stern ret = iwl_mvm_allocate_int_sta(mvm, sta, 0, 4065be82ecd3SAvraham Stern NL80211_IFTYPE_UNSPECIFIED, 4066be82ecd3SAvraham Stern IWL_STA_LINK); 4067be82ecd3SAvraham Stern if (ret) 4068be82ecd3SAvraham Stern return ret; 4069be82ecd3SAvraham Stern 4070be82ecd3SAvraham Stern ret = iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id, mvmvif->color, 4071be82ecd3SAvraham Stern addr, sta, &queue, 4072be82ecd3SAvraham Stern IWL_MVM_TX_FIFO_BE); 4073be82ecd3SAvraham Stern if (ret) 4074be82ecd3SAvraham Stern goto out; 4075be82ecd3SAvraham Stern 4076be82ecd3SAvraham Stern keyconf = kzalloc(sizeof(*keyconf) + key_len, GFP_KERNEL); 4077be82ecd3SAvraham Stern if (!keyconf) { 4078be82ecd3SAvraham Stern ret = -ENOBUFS; 4079be82ecd3SAvraham Stern goto out; 4080be82ecd3SAvraham Stern } 4081be82ecd3SAvraham Stern 4082be82ecd3SAvraham Stern keyconf->cipher = cipher; 4083be82ecd3SAvraham Stern memcpy(keyconf->key, key, key_len); 4084be82ecd3SAvraham Stern keyconf->keylen = key_len; 4085be82ecd3SAvraham Stern 4086be82ecd3SAvraham Stern ret = iwl_mvm_send_sta_key(mvm, sta->sta_id, keyconf, false, 4087be82ecd3SAvraham Stern 0, NULL, 0, 0, true); 4088be82ecd3SAvraham Stern kfree(keyconf); 4089be82ecd3SAvraham Stern return 0; 4090be82ecd3SAvraham Stern out: 4091be82ecd3SAvraham Stern iwl_mvm_dealloc_int_sta(mvm, sta); 4092be82ecd3SAvraham Stern return ret; 4093be82ecd3SAvraham Stern } 4094ad12b231SNathan Errera 4095ad12b231SNathan Errera void iwl_mvm_cancel_channel_switch(struct iwl_mvm *mvm, 4096ad12b231SNathan Errera struct ieee80211_vif *vif, 4097ad12b231SNathan Errera u32 mac_id) 4098ad12b231SNathan Errera { 4099ad12b231SNathan Errera struct iwl_cancel_channel_switch_cmd cancel_channel_switch_cmd = { 4100ad12b231SNathan Errera .mac_id = cpu_to_le32(mac_id), 4101ad12b231SNathan Errera }; 4102ad12b231SNathan Errera int ret; 4103ad12b231SNathan Errera 4104ad12b231SNathan Errera ret = iwl_mvm_send_cmd_pdu(mvm, 4105f0c86427SJohannes Berg WIDE_ID(MAC_CONF_GROUP, CANCEL_CHANNEL_SWITCH_CMD), 4106ad12b231SNathan Errera CMD_ASYNC, 4107ad12b231SNathan Errera sizeof(cancel_channel_switch_cmd), 4108ad12b231SNathan Errera &cancel_channel_switch_cmd); 4109ad12b231SNathan Errera if (ret) 4110ad12b231SNathan Errera IWL_ERR(mvm, "Failed to cancel the channel switch\n"); 4111ad12b231SNathan Errera } 4112