18e99ea8dSJohannes Berg // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 28e99ea8dSJohannes Berg /* 33538c809SLuca Coelho * Copyright (C) 2012-2015, 2018-2022 Intel Corporation 48e99ea8dSJohannes Berg * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 58e99ea8dSJohannes Berg * Copyright (C) 2016-2017 Intel Deutschland GmbH 68e99ea8dSJohannes Berg */ 7e705c121SKalle Valo #include <net/mac80211.h> 8e705c121SKalle Valo 9e705c121SKalle Valo #include "mvm.h" 10e705c121SKalle Valo #include "sta.h" 11e705c121SKalle Valo #include "rs.h" 12e705c121SKalle Valo 13854c5705SSara Sharon /* 14854c5705SSara Sharon * New version of ADD_STA_sta command added new fields at the end of the 15854c5705SSara Sharon * structure, so sending the size of the relevant API's structure is enough to 16854c5705SSara Sharon * support both API versions. 17854c5705SSara Sharon */ 18854c5705SSara Sharon static inline int iwl_mvm_add_sta_cmd_size(struct iwl_mvm *mvm) 19854c5705SSara Sharon { 20ced19f26SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) || 21ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 22ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd); 23ced19f26SSara Sharon else 24ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd_v7); 25854c5705SSara Sharon } 26854c5705SSara Sharon 27e705c121SKalle Valo static int iwl_mvm_find_free_sta_id(struct iwl_mvm *mvm, 28e705c121SKalle Valo enum nl80211_iftype iftype) 29e705c121SKalle Valo { 30e705c121SKalle Valo int sta_id; 31e705c121SKalle Valo u32 reserved_ids = 0; 32e705c121SKalle Valo 33be9ae34eSNathan Errera BUILD_BUG_ON(IWL_MVM_STATION_COUNT_MAX > 32); 34e705c121SKalle Valo WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)); 35e705c121SKalle Valo 36e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 37e705c121SKalle Valo 38e705c121SKalle Valo /* d0i3/d3 assumes the AP's sta_id (of sta vif) is 0. reserve it. */ 39e705c121SKalle Valo if (iftype != NL80211_IFTYPE_STATION) 40e705c121SKalle Valo reserved_ids = BIT(0); 41e705c121SKalle Valo 42e705c121SKalle Valo /* Don't take rcu_read_lock() since we are protected by mvm->mutex */ 43be9ae34eSNathan Errera for (sta_id = 0; sta_id < mvm->fw->ucode_capa.num_stations; sta_id++) { 44e705c121SKalle Valo if (BIT(sta_id) & reserved_ids) 45e705c121SKalle Valo continue; 46e705c121SKalle Valo 47e705c121SKalle Valo if (!rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 48e705c121SKalle Valo lockdep_is_held(&mvm->mutex))) 49e705c121SKalle Valo return sta_id; 50e705c121SKalle Valo } 510ae98812SSara Sharon return IWL_MVM_INVALID_STA; 52e705c121SKalle Valo } 53e705c121SKalle Valo 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 89046d2e7cSSriram R switch (sta->deflink.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: 101046d2e7cSSriram R if (sta->deflink.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 107046d2e7cSSriram R switch (sta->deflink.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 119261ce887SBenjamin Berg switch (sta->deflink.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 137046d2e7cSSriram R if (sta->deflink.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 142046d2e7cSSriram R mpdu_dens = sta->deflink.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 150046d2e7cSSriram R mpdu_dens = le16_get_bits(sta->deflink.he_6ghz_capa.capa, 151eae94cf8SLuca Coelho IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START); 152046d2e7cSSriram R agg_size = le16_get_bits(sta->deflink.he_6ghz_capa.capa, 153eae94cf8SLuca Coelho IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP); 154046d2e7cSSriram R } else if (sta->deflink.vht_cap.vht_supported) { 155046d2e7cSSriram R agg_size = sta->deflink.vht_cap.cap & 156e705c121SKalle Valo IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; 157e705c121SKalle Valo agg_size >>= 158e705c121SKalle Valo IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; 159046d2e7cSSriram R } else if (sta->deflink.ht_cap.ht_supported) { 160046d2e7cSSriram R agg_size = sta->deflink.ht_cap.ampdu_factor; 161e705c121SKalle Valo } 162e705c121SKalle Valo 163c8a2e7a2SMordechay Goodstein /* D6.0 10.12.2 A-MPDU length limit rules 164c8a2e7a2SMordechay Goodstein * A STA indicates the maximum length of the A-MPDU preEOF padding 165c8a2e7a2SMordechay Goodstein * that it can receive in an HE PPDU in the Maximum A-MPDU Length 166c8a2e7a2SMordechay Goodstein * Exponent field in its HT Capabilities, VHT Capabilities, 167c8a2e7a2SMordechay Goodstein * and HE 6 GHz Band Capabilities elements (if present) and the 168c8a2e7a2SMordechay Goodstein * Maximum AMPDU Length Exponent Extension field in its HE 169c8a2e7a2SMordechay Goodstein * Capabilities element 170c8a2e7a2SMordechay Goodstein */ 171046d2e7cSSriram R if (sta->deflink.he_cap.has_he) 172046d2e7cSSriram R agg_size += u8_get_bits(sta->deflink.he_cap.he_cap_elem.mac_cap_info[3], 173c8a2e7a2SMordechay Goodstein IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK); 174c8a2e7a2SMordechay Goodstein 175c8a2e7a2SMordechay Goodstein /* Limit to max A-MPDU supported by FW */ 176c8a2e7a2SMordechay Goodstein if (agg_size > (STA_FLG_MAX_AGG_SIZE_4M >> STA_FLG_MAX_AGG_SIZE_SHIFT)) 177c8a2e7a2SMordechay Goodstein agg_size = (STA_FLG_MAX_AGG_SIZE_4M >> 178c8a2e7a2SMordechay Goodstein STA_FLG_MAX_AGG_SIZE_SHIFT); 179c8a2e7a2SMordechay Goodstein 180e705c121SKalle Valo add_sta_cmd.station_flags |= 181e705c121SKalle Valo cpu_to_le32(agg_size << STA_FLG_MAX_AGG_SIZE_SHIFT); 182e705c121SKalle Valo add_sta_cmd.station_flags |= 183e705c121SKalle Valo cpu_to_le32(mpdu_dens << STA_FLG_AGG_MPDU_DENS_SHIFT); 184d94c5a82SGregory Greenman if (mvm_sta->sta_state >= IEEE80211_STA_ASSOC) 18519c52f46SEmmanuel Grumbach add_sta_cmd.assoc_id = cpu_to_le16(sta->aid); 186e705c121SKalle Valo 18765e25482SJohannes Berg if (sta->wme) { 18865e25482SJohannes Berg add_sta_cmd.modify_mask |= STA_MODIFY_UAPSD_ACS; 18965e25482SJohannes Berg 19065e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK) 191c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_BK); 19265e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE) 193c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_BE); 19465e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI) 195c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_VI); 19665e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) 197c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_VO); 198c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= add_sta_cmd.uapsd_acs << 4; 199e71ca5eaSEmmanuel Grumbach add_sta_cmd.sp_length = sta->max_sp ? sta->max_sp * 2 : 128; 20065e25482SJohannes Berg } 20165e25482SJohannes Berg 202e705c121SKalle Valo status = ADD_STA_SUCCESS; 203854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 204854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 205e705c121SKalle Valo &add_sta_cmd, &status); 206e705c121SKalle Valo if (ret) 207e705c121SKalle Valo return ret; 208e705c121SKalle Valo 209837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 210e705c121SKalle Valo case ADD_STA_SUCCESS: 211e705c121SKalle Valo IWL_DEBUG_ASSOC(mvm, "ADD_STA PASSED\n"); 212e705c121SKalle Valo break; 213e705c121SKalle Valo default: 214e705c121SKalle Valo ret = -EIO; 215e705c121SKalle Valo IWL_ERR(mvm, "ADD_STA failed\n"); 216e705c121SKalle Valo break; 217e705c121SKalle Valo } 218e705c121SKalle Valo 219e705c121SKalle Valo return ret; 220e705c121SKalle Valo } 221e705c121SKalle Valo 2228cef5344SKees Cook static void iwl_mvm_rx_agg_session_expired(struct timer_list *t) 22310b2b201SSara Sharon { 2248cef5344SKees Cook struct iwl_mvm_baid_data *data = 2258cef5344SKees Cook from_timer(data, t, session_timer); 2268cef5344SKees Cook struct iwl_mvm_baid_data __rcu **rcu_ptr = data->rcu_ptr; 22710b2b201SSara Sharon struct iwl_mvm_baid_data *ba_data; 22810b2b201SSara Sharon struct ieee80211_sta *sta; 22910b2b201SSara Sharon struct iwl_mvm_sta *mvm_sta; 23010b2b201SSara Sharon unsigned long timeout; 23110b2b201SSara Sharon 23210b2b201SSara Sharon rcu_read_lock(); 23310b2b201SSara Sharon 23410b2b201SSara Sharon ba_data = rcu_dereference(*rcu_ptr); 23510b2b201SSara Sharon 23610b2b201SSara Sharon if (WARN_ON(!ba_data)) 23710b2b201SSara Sharon goto unlock; 23810b2b201SSara Sharon 23910b2b201SSara Sharon if (!ba_data->timeout) 24010b2b201SSara Sharon goto unlock; 24110b2b201SSara Sharon 24210b2b201SSara Sharon timeout = ba_data->last_rx + TU_TO_JIFFIES(ba_data->timeout * 2); 24310b2b201SSara Sharon if (time_is_after_jiffies(timeout)) { 24410b2b201SSara Sharon mod_timer(&ba_data->session_timer, timeout); 24510b2b201SSara Sharon goto unlock; 24610b2b201SSara Sharon } 24710b2b201SSara Sharon 24810b2b201SSara Sharon /* Timer expired */ 24910b2b201SSara Sharon sta = rcu_dereference(ba_data->mvm->fw_id_to_mac_id[ba_data->sta_id]); 25061dd8a8aSEmmanuel Grumbach 25161dd8a8aSEmmanuel Grumbach /* 25261dd8a8aSEmmanuel Grumbach * sta should be valid unless the following happens: 25361dd8a8aSEmmanuel Grumbach * The firmware asserts which triggers a reconfig flow, but 25461dd8a8aSEmmanuel Grumbach * the reconfig fails before we set the pointer to sta into 25561dd8a8aSEmmanuel Grumbach * the fw_id_to_mac_id pointer table. Mac80211 can't stop 25661dd8a8aSEmmanuel Grumbach * A-MDPU and hence the timer continues to run. Then, the 25761dd8a8aSEmmanuel Grumbach * timer expires and sta is NULL. 25861dd8a8aSEmmanuel Grumbach */ 25961dd8a8aSEmmanuel Grumbach if (!sta) 26061dd8a8aSEmmanuel Grumbach goto unlock; 26161dd8a8aSEmmanuel Grumbach 26210b2b201SSara Sharon mvm_sta = iwl_mvm_sta_from_mac80211(sta); 26320fc690fSNaftali Goldstein ieee80211_rx_ba_timer_expired(mvm_sta->vif, 26410b2b201SSara Sharon sta->addr, ba_data->tid); 26510b2b201SSara Sharon unlock: 26610b2b201SSara Sharon rcu_read_unlock(); 26710b2b201SSara Sharon } 26810b2b201SSara Sharon 2699794c64fSLiad Kaufman /* Disable aggregations for a bitmap of TIDs for a given station */ 2709794c64fSLiad Kaufman static int iwl_mvm_invalidate_sta_queue(struct iwl_mvm *mvm, int queue, 2719794c64fSLiad Kaufman unsigned long disable_agg_tids, 2729794c64fSLiad Kaufman bool remove_queue) 2739794c64fSLiad Kaufman { 2749794c64fSLiad Kaufman struct iwl_mvm_add_sta_cmd cmd = {}; 2759794c64fSLiad Kaufman struct ieee80211_sta *sta; 2769794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 2779794c64fSLiad Kaufman u32 status; 2789794c64fSLiad Kaufman u8 sta_id; 2799794c64fSLiad Kaufman 280bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 281bb49701bSSara Sharon return -EINVAL; 282bb49701bSSara Sharon 2839794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 2849794c64fSLiad Kaufman 2859794c64fSLiad Kaufman rcu_read_lock(); 2869794c64fSLiad Kaufman 2879794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 2889794c64fSLiad Kaufman 2899794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 2909794c64fSLiad Kaufman rcu_read_unlock(); 2919794c64fSLiad Kaufman return -EINVAL; 2929794c64fSLiad Kaufman } 2939794c64fSLiad Kaufman 2949794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 2959794c64fSLiad Kaufman 2969794c64fSLiad Kaufman mvmsta->tid_disable_agg |= disable_agg_tids; 2979794c64fSLiad Kaufman 2989794c64fSLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 2999794c64fSLiad Kaufman cmd.sta_id = mvmsta->sta_id; 3009794c64fSLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 3019794c64fSLiad Kaufman cmd.modify_mask = STA_MODIFY_QUEUES; 3029794c64fSLiad Kaufman if (disable_agg_tids) 3039794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 3049794c64fSLiad Kaufman if (remove_queue) 3059794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_QUEUE_REMOVAL; 3069794c64fSLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 3079794c64fSLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 3089794c64fSLiad Kaufman 3099794c64fSLiad Kaufman rcu_read_unlock(); 3109794c64fSLiad Kaufman 3119794c64fSLiad Kaufman /* Notify FW of queue removal from the STA queues */ 3129794c64fSLiad Kaufman status = ADD_STA_SUCCESS; 313b2c1bf59SSara Sharon return iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 3149794c64fSLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), 3159794c64fSLiad Kaufman &cmd, &status); 3169794c64fSLiad Kaufman } 3179794c64fSLiad Kaufman 318cfbc6c4cSSara Sharon static int iwl_mvm_disable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 319c5a976cfSJohannes Berg int sta_id, u16 *queueptr, u8 tid) 32099448a8cSJohannes Berg { 321c6ce1c74SJohannes Berg int queue = *queueptr; 32299448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 32399448a8cSJohannes Berg .scd_queue = queue, 32499448a8cSJohannes Berg .action = SCD_CFG_DISABLE_QUEUE, 32599448a8cSJohannes Berg }; 32699448a8cSJohannes Berg int ret; 32799448a8cSJohannes Berg 328227f2597SJohannes Berg lockdep_assert_held(&mvm->mutex); 329227f2597SJohannes Berg 33099448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) { 331227f2597SJohannes Berg if (mvm->sta_remove_requires_queue_remove) { 332227f2597SJohannes Berg u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, 333227f2597SJohannes Berg SCD_QUEUE_CONFIG_CMD); 334227f2597SJohannes Berg struct iwl_scd_queue_cfg_cmd remove_cmd = { 335227f2597SJohannes Berg .operation = cpu_to_le32(IWL_SCD_QUEUE_REMOVE), 336c5a976cfSJohannes Berg .u.remove.tid = cpu_to_le32(tid), 337c5a976cfSJohannes Berg .u.remove.sta_mask = cpu_to_le32(BIT(sta_id)), 338227f2597SJohannes Berg }; 339227f2597SJohannes Berg 340227f2597SJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, 341227f2597SJohannes Berg sizeof(remove_cmd), 342227f2597SJohannes Berg &remove_cmd); 343227f2597SJohannes Berg } else { 344227f2597SJohannes Berg ret = 0; 345227f2597SJohannes Berg } 346227f2597SJohannes Berg 34799448a8cSJohannes Berg iwl_trans_txq_free(mvm->trans, queue); 348c6ce1c74SJohannes Berg *queueptr = IWL_MVM_INVALID_QUEUE; 34999448a8cSJohannes Berg 350227f2597SJohannes Berg return ret; 35199448a8cSJohannes Berg } 35299448a8cSJohannes Berg 353f3f240f9SJohannes Berg if (WARN_ON(mvm->queue_info[queue].tid_bitmap == 0)) 35499448a8cSJohannes Berg return 0; 35599448a8cSJohannes Berg 35699448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 35799448a8cSJohannes Berg 3581c14089eSJohannes Berg cmd.action = mvm->queue_info[queue].tid_bitmap ? 35999448a8cSJohannes Berg SCD_CFG_ENABLE_QUEUE : SCD_CFG_DISABLE_QUEUE; 36099448a8cSJohannes Berg if (cmd.action == SCD_CFG_DISABLE_QUEUE) 36199448a8cSJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_FREE; 36299448a8cSJohannes Berg 36399448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 364cfbc6c4cSSara Sharon "Disabling TXQ #%d tids=0x%x\n", 36599448a8cSJohannes Berg queue, 366cfbc6c4cSSara Sharon mvm->queue_info[queue].tid_bitmap); 36799448a8cSJohannes Berg 36899448a8cSJohannes Berg /* If the queue is still enabled - nothing left to do in this func */ 369f3f240f9SJohannes Berg if (cmd.action == SCD_CFG_ENABLE_QUEUE) 37099448a8cSJohannes Berg return 0; 37199448a8cSJohannes Berg 37299448a8cSJohannes Berg cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 37399448a8cSJohannes Berg cmd.tid = mvm->queue_info[queue].txq_tid; 37499448a8cSJohannes Berg 37599448a8cSJohannes Berg /* Make sure queue info is correct even though we overwrite it */ 376cfbc6c4cSSara Sharon WARN(mvm->queue_info[queue].tid_bitmap, 377cfbc6c4cSSara Sharon "TXQ #%d info out-of-sync - tids=0x%x\n", 378cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 37999448a8cSJohannes Berg 38099448a8cSJohannes Berg /* If we are here - the queue is freed and we can zero out these vals */ 38199448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap = 0; 382cfbc6c4cSSara Sharon 383cfbc6c4cSSara Sharon if (sta) { 384cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 385cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 386cfbc6c4cSSara Sharon 387cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 38895b0f666SJose Ignacio Tornos Martinez list_del_init(&mvmtxq->list); 389cfbc6c4cSSara Sharon } 39099448a8cSJohannes Berg 39199448a8cSJohannes Berg /* Regardless if this is a reserved TXQ for a STA - mark it as false */ 39299448a8cSJohannes Berg mvm->queue_info[queue].reserved = false; 39399448a8cSJohannes Berg 39499448a8cSJohannes Berg iwl_trans_txq_disable(mvm->trans, queue, false); 39564ff7eb0SJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, 39699448a8cSJohannes Berg sizeof(struct iwl_scd_txq_cfg_cmd), &cmd); 39799448a8cSJohannes Berg 39899448a8cSJohannes Berg if (ret) 39999448a8cSJohannes Berg IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n", 40099448a8cSJohannes Berg queue, ret); 40199448a8cSJohannes Berg return ret; 40299448a8cSJohannes Berg } 40399448a8cSJohannes Berg 40442db09c1SLiad Kaufman static int iwl_mvm_get_queue_agg_tids(struct iwl_mvm *mvm, int queue) 40542db09c1SLiad Kaufman { 40642db09c1SLiad Kaufman struct ieee80211_sta *sta; 40742db09c1SLiad Kaufman struct iwl_mvm_sta *mvmsta; 40842db09c1SLiad Kaufman unsigned long tid_bitmap; 40942db09c1SLiad Kaufman unsigned long agg_tids = 0; 410806911daSSharon Dvir u8 sta_id; 41142db09c1SLiad Kaufman int tid; 41242db09c1SLiad Kaufman 41342db09c1SLiad Kaufman lockdep_assert_held(&mvm->mutex); 41442db09c1SLiad Kaufman 415bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 416bb49701bSSara Sharon return -EINVAL; 417bb49701bSSara Sharon 41842db09c1SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 41942db09c1SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 42042db09c1SLiad Kaufman 42142db09c1SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 42242db09c1SLiad Kaufman lockdep_is_held(&mvm->mutex)); 42342db09c1SLiad Kaufman 42442db09c1SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 42542db09c1SLiad Kaufman return -EINVAL; 42642db09c1SLiad Kaufman 42742db09c1SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 42842db09c1SLiad Kaufman 42942db09c1SLiad Kaufman spin_lock_bh(&mvmsta->lock); 43042db09c1SLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 43142db09c1SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 43242db09c1SLiad Kaufman agg_tids |= BIT(tid); 43342db09c1SLiad Kaufman } 43442db09c1SLiad Kaufman spin_unlock_bh(&mvmsta->lock); 43542db09c1SLiad Kaufman 43642db09c1SLiad Kaufman return agg_tids; 43742db09c1SLiad Kaufman } 43842db09c1SLiad Kaufman 4399794c64fSLiad Kaufman /* 4409794c64fSLiad Kaufman * Remove a queue from a station's resources. 4419794c64fSLiad Kaufman * Note that this only marks as free. It DOESN'T delete a BA agreement, and 4429794c64fSLiad Kaufman * doesn't disable the queue 4439794c64fSLiad Kaufman */ 4449794c64fSLiad Kaufman static int iwl_mvm_remove_sta_queue_marking(struct iwl_mvm *mvm, int queue) 4459794c64fSLiad Kaufman { 4469794c64fSLiad Kaufman struct ieee80211_sta *sta; 4479794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 4489794c64fSLiad Kaufman unsigned long tid_bitmap; 4499794c64fSLiad Kaufman unsigned long disable_agg_tids = 0; 4509794c64fSLiad Kaufman u8 sta_id; 4519794c64fSLiad Kaufman int tid; 4529794c64fSLiad Kaufman 4539794c64fSLiad Kaufman lockdep_assert_held(&mvm->mutex); 4549794c64fSLiad Kaufman 455bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 456bb49701bSSara Sharon return -EINVAL; 457bb49701bSSara Sharon 4589794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 4599794c64fSLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 4609794c64fSLiad Kaufman 4619794c64fSLiad Kaufman rcu_read_lock(); 4629794c64fSLiad Kaufman 4639794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 4649794c64fSLiad Kaufman 4659794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 4669794c64fSLiad Kaufman rcu_read_unlock(); 4679794c64fSLiad Kaufman return 0; 4689794c64fSLiad Kaufman } 4699794c64fSLiad Kaufman 4709794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 4719794c64fSLiad Kaufman 4729794c64fSLiad Kaufman spin_lock_bh(&mvmsta->lock); 47342db09c1SLiad Kaufman /* Unmap MAC queues and TIDs from this queue */ 4749794c64fSLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 475cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 476cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 477cfbc6c4cSSara Sharon 4789794c64fSLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 4799794c64fSLiad Kaufman disable_agg_tids |= BIT(tid); 4806862fceeSSara Sharon mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 481cfbc6c4cSSara Sharon 482cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 48395b0f666SJose Ignacio Tornos Martinez list_del_init(&mvmtxq->list); 4849794c64fSLiad Kaufman } 4859794c64fSLiad Kaufman 48642db09c1SLiad Kaufman mvmsta->tfd_queue_msk &= ~BIT(queue); /* Don't use this queue anymore */ 4879794c64fSLiad Kaufman spin_unlock_bh(&mvmsta->lock); 4889794c64fSLiad Kaufman 4899794c64fSLiad Kaufman rcu_read_unlock(); 4909794c64fSLiad Kaufman 49106bc6f6eSJohannes Berg /* 49206bc6f6eSJohannes Berg * The TX path may have been using this TXQ_ID from the tid_data, 49306bc6f6eSJohannes Berg * so make sure it's no longer running so that we can safely reuse 49406bc6f6eSJohannes Berg * this TXQ later. We've set all the TIDs to IWL_MVM_INVALID_QUEUE 49506bc6f6eSJohannes Berg * above, but nothing guarantees we've stopped using them. Thus, 49606bc6f6eSJohannes Berg * without this, we could get to iwl_mvm_disable_txq() and remove 49706bc6f6eSJohannes Berg * the queue while still sending frames to it. 49806bc6f6eSJohannes Berg */ 49906bc6f6eSJohannes Berg synchronize_net(); 50006bc6f6eSJohannes Berg 5019794c64fSLiad Kaufman return disable_agg_tids; 5029794c64fSLiad Kaufman } 5039794c64fSLiad Kaufman 50401796ff2SSara Sharon static int iwl_mvm_free_inactive_queue(struct iwl_mvm *mvm, int queue, 505cfbc6c4cSSara Sharon struct ieee80211_sta *old_sta, 506724fe771SJohannes Berg u8 new_sta_id) 50701796ff2SSara Sharon { 50801796ff2SSara Sharon struct iwl_mvm_sta *mvmsta; 509cfbc6c4cSSara Sharon u8 sta_id, tid; 51001796ff2SSara Sharon unsigned long disable_agg_tids = 0; 511724fe771SJohannes Berg bool same_sta; 512c6ce1c74SJohannes Berg u16 queue_tmp = queue; 51301796ff2SSara Sharon int ret; 51401796ff2SSara Sharon 51501796ff2SSara Sharon lockdep_assert_held(&mvm->mutex); 51601796ff2SSara Sharon 517bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 518bb49701bSSara Sharon return -EINVAL; 519bb49701bSSara Sharon 52001796ff2SSara Sharon sta_id = mvm->queue_info[queue].ra_sta_id; 52101796ff2SSara Sharon tid = mvm->queue_info[queue].txq_tid; 52201796ff2SSara Sharon 523724fe771SJohannes Berg same_sta = sta_id == new_sta_id; 524724fe771SJohannes Berg 52501796ff2SSara Sharon mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 526e3df1e4bSSharon Dvir if (WARN_ON(!mvmsta)) 527e3df1e4bSSharon Dvir return -EINVAL; 52801796ff2SSara Sharon 52901796ff2SSara Sharon disable_agg_tids = iwl_mvm_remove_sta_queue_marking(mvm, queue); 53001796ff2SSara Sharon /* Disable the queue */ 53101796ff2SSara Sharon if (disable_agg_tids) 53201796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 53301796ff2SSara Sharon disable_agg_tids, false); 53401796ff2SSara Sharon 535c5a976cfSJohannes Berg ret = iwl_mvm_disable_txq(mvm, old_sta, sta_id, &queue_tmp, tid); 53601796ff2SSara Sharon if (ret) { 53701796ff2SSara Sharon IWL_ERR(mvm, 53801796ff2SSara Sharon "Failed to free inactive queue %d (ret=%d)\n", 53901796ff2SSara Sharon queue, ret); 54001796ff2SSara Sharon 54101796ff2SSara Sharon return ret; 54201796ff2SSara Sharon } 54301796ff2SSara Sharon 54401796ff2SSara Sharon /* If TXQ is allocated to another STA, update removal in FW */ 54501796ff2SSara Sharon if (!same_sta) 54601796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 0, true); 54701796ff2SSara Sharon 54801796ff2SSara Sharon return 0; 54901796ff2SSara Sharon } 55001796ff2SSara Sharon 55142db09c1SLiad Kaufman static int iwl_mvm_get_shared_queue(struct iwl_mvm *mvm, 55242db09c1SLiad Kaufman unsigned long tfd_queue_mask, u8 ac) 55342db09c1SLiad Kaufman { 55442db09c1SLiad Kaufman int queue = 0; 55542db09c1SLiad Kaufman u8 ac_to_queue[IEEE80211_NUM_ACS]; 55642db09c1SLiad Kaufman int i; 55742db09c1SLiad Kaufman 55890d2d94cSJohannes Berg /* 55990d2d94cSJohannes Berg * This protects us against grabbing a queue that's being reconfigured 56090d2d94cSJohannes Berg * by the inactivity checker. 56190d2d94cSJohannes Berg */ 56290d2d94cSJohannes Berg lockdep_assert_held(&mvm->mutex); 56390d2d94cSJohannes Berg 564bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 565bb49701bSSara Sharon return -EINVAL; 56642db09c1SLiad Kaufman 56742db09c1SLiad Kaufman memset(&ac_to_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(ac_to_queue)); 56842db09c1SLiad Kaufman 56942db09c1SLiad Kaufman /* See what ACs the existing queues for this STA have */ 57042db09c1SLiad Kaufman for_each_set_bit(i, &tfd_queue_mask, IWL_MVM_DQA_MAX_DATA_QUEUE) { 57142db09c1SLiad Kaufman /* Only DATA queues can be shared */ 57242db09c1SLiad Kaufman if (i < IWL_MVM_DQA_MIN_DATA_QUEUE && 57342db09c1SLiad Kaufman i != IWL_MVM_DQA_BSS_CLIENT_QUEUE) 57442db09c1SLiad Kaufman continue; 57542db09c1SLiad Kaufman 57642db09c1SLiad Kaufman ac_to_queue[mvm->queue_info[i].mac80211_ac] = i; 57742db09c1SLiad Kaufman } 57842db09c1SLiad Kaufman 57942db09c1SLiad Kaufman /* 58042db09c1SLiad Kaufman * The queue to share is chosen only from DATA queues as follows (in 58142db09c1SLiad Kaufman * descending priority): 58242db09c1SLiad Kaufman * 1. An AC_BE queue 58342db09c1SLiad Kaufman * 2. Same AC queue 58442db09c1SLiad Kaufman * 3. Highest AC queue that is lower than new AC 58542db09c1SLiad Kaufman * 4. Any existing AC (there always is at least 1 DATA queue) 58642db09c1SLiad Kaufman */ 58742db09c1SLiad Kaufman 58842db09c1SLiad Kaufman /* Priority 1: An AC_BE queue */ 58942db09c1SLiad Kaufman if (ac_to_queue[IEEE80211_AC_BE] != IEEE80211_INVAL_HW_QUEUE) 59042db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BE]; 59142db09c1SLiad Kaufman /* Priority 2: Same AC queue */ 59242db09c1SLiad Kaufman else if (ac_to_queue[ac] != IEEE80211_INVAL_HW_QUEUE) 59342db09c1SLiad Kaufman queue = ac_to_queue[ac]; 59442db09c1SLiad Kaufman /* Priority 3a: If new AC is VO and VI exists - use VI */ 59542db09c1SLiad Kaufman else if (ac == IEEE80211_AC_VO && 59642db09c1SLiad Kaufman ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 59742db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 59842db09c1SLiad Kaufman /* Priority 3b: No BE so only AC less than the new one is BK */ 59942db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_BK] != IEEE80211_INVAL_HW_QUEUE) 60042db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BK]; 60142db09c1SLiad Kaufman /* Priority 4a: No BE nor BK - use VI if exists */ 60242db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 60342db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 60442db09c1SLiad Kaufman /* Priority 4b: No BE, BK nor VI - use VO if exists */ 60542db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VO] != IEEE80211_INVAL_HW_QUEUE) 60642db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VO]; 60742db09c1SLiad Kaufman 60842db09c1SLiad Kaufman /* Make sure queue found (or not) is legal */ 6099f9af3d7SLiad Kaufman if (!iwl_mvm_is_dqa_data_queue(mvm, queue) && 6109f9af3d7SLiad Kaufman !iwl_mvm_is_dqa_mgmt_queue(mvm, queue) && 6119f9af3d7SLiad Kaufman (queue != IWL_MVM_DQA_BSS_CLIENT_QUEUE)) { 61242db09c1SLiad Kaufman IWL_ERR(mvm, "No DATA queues available to share\n"); 6139f9af3d7SLiad Kaufman return -ENOSPC; 6149f9af3d7SLiad Kaufman } 6159f9af3d7SLiad Kaufman 61642db09c1SLiad Kaufman return queue; 61742db09c1SLiad Kaufman } 61842db09c1SLiad Kaufman 619a54844d4SJohannes Berg /* Re-configure the SCD for a queue that has already been configured */ 620a54844d4SJohannes Berg static int iwl_mvm_reconfig_scd(struct iwl_mvm *mvm, int queue, int fifo, 621a54844d4SJohannes Berg int sta_id, int tid, int frame_limit, u16 ssn) 622a54844d4SJohannes Berg { 623a54844d4SJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 624a54844d4SJohannes Berg .scd_queue = queue, 625a54844d4SJohannes Berg .action = SCD_CFG_ENABLE_QUEUE, 626a54844d4SJohannes Berg .window = frame_limit, 627a54844d4SJohannes Berg .sta_id = sta_id, 628a54844d4SJohannes Berg .ssn = cpu_to_le16(ssn), 629a54844d4SJohannes Berg .tx_fifo = fifo, 630a54844d4SJohannes Berg .aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 631a54844d4SJohannes Berg queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE), 632a54844d4SJohannes Berg .tid = tid, 633a54844d4SJohannes Berg }; 634a54844d4SJohannes Berg int ret; 635a54844d4SJohannes Berg 636a54844d4SJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 637a54844d4SJohannes Berg return -EINVAL; 638a54844d4SJohannes Berg 639a54844d4SJohannes Berg if (WARN(mvm->queue_info[queue].tid_bitmap == 0, 640a54844d4SJohannes Berg "Trying to reconfig unallocated queue %d\n", queue)) 641a54844d4SJohannes Berg return -ENXIO; 642a54844d4SJohannes Berg 643a54844d4SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Reconfig SCD for TXQ #%d\n", queue); 644a54844d4SJohannes Berg 645a54844d4SJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 646a54844d4SJohannes Berg WARN_ONCE(ret, "Failed to re-configure queue %d on FIFO %d, ret=%d\n", 647a54844d4SJohannes Berg queue, fifo, ret); 648a54844d4SJohannes Berg 649a54844d4SJohannes Berg return ret; 650a54844d4SJohannes Berg } 651a54844d4SJohannes Berg 65258f2cc57SLiad Kaufman /* 6539f9af3d7SLiad Kaufman * If a given queue has a higher AC than the TID stream that is being compared 6549f9af3d7SLiad Kaufman * to, the queue needs to be redirected to the lower AC. This function does that 65558f2cc57SLiad Kaufman * in such a case, otherwise - if no redirection required - it does nothing, 65658f2cc57SLiad Kaufman * unless the %force param is true. 65758f2cc57SLiad Kaufman */ 658cfbc6c4cSSara Sharon static int iwl_mvm_redirect_queue(struct iwl_mvm *mvm, int queue, int tid, 65958f2cc57SLiad Kaufman int ac, int ssn, unsigned int wdg_timeout, 660cfbc6c4cSSara Sharon bool force, struct iwl_mvm_txq *txq) 66158f2cc57SLiad Kaufman { 66258f2cc57SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 66358f2cc57SLiad Kaufman .scd_queue = queue, 664f7c692deSLiad Kaufman .action = SCD_CFG_DISABLE_QUEUE, 66558f2cc57SLiad Kaufman }; 66658f2cc57SLiad Kaufman bool shared_queue; 66758f2cc57SLiad Kaufman int ret; 66858f2cc57SLiad Kaufman 669bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 670bb49701bSSara Sharon return -EINVAL; 671bb49701bSSara Sharon 67258f2cc57SLiad Kaufman /* 67358f2cc57SLiad Kaufman * If the AC is lower than current one - FIFO needs to be redirected to 67458f2cc57SLiad Kaufman * the lowest one of the streams in the queue. Check if this is needed 67558f2cc57SLiad Kaufman * here. 67658f2cc57SLiad Kaufman * Notice that the enum ieee80211_ac_numbers is "flipped", so BK is with 67758f2cc57SLiad Kaufman * value 3 and VO with value 0, so to check if ac X is lower than ac Y 67858f2cc57SLiad Kaufman * we need to check if the numerical value of X is LARGER than of Y. 67958f2cc57SLiad Kaufman */ 68058f2cc57SLiad Kaufman if (ac <= mvm->queue_info[queue].mac80211_ac && !force) { 68158f2cc57SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 68258f2cc57SLiad Kaufman "No redirection needed on TXQ #%d\n", 68358f2cc57SLiad Kaufman queue); 68458f2cc57SLiad Kaufman return 0; 68558f2cc57SLiad Kaufman } 68658f2cc57SLiad Kaufman 68758f2cc57SLiad Kaufman cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 68858f2cc57SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[mvm->queue_info[queue].mac80211_ac]; 689edbe961cSLiad Kaufman cmd.tid = mvm->queue_info[queue].txq_tid; 6901c14089eSJohannes Berg shared_queue = hweight16(mvm->queue_info[queue].tid_bitmap) > 1; 69158f2cc57SLiad Kaufman 6929f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Redirecting TXQ #%d to FIFO #%d\n", 69358f2cc57SLiad Kaufman queue, iwl_mvm_ac_to_tx_fifo[ac]); 69458f2cc57SLiad Kaufman 695cfbc6c4cSSara Sharon /* Stop the queue and wait for it to empty */ 696*b58e3d43SJohannes Berg set_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, &txq->state); 697cfbc6c4cSSara Sharon 698a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(queue)); 69958f2cc57SLiad Kaufman if (ret) { 70058f2cc57SLiad Kaufman IWL_ERR(mvm, "Error draining queue %d before reconfig\n", 70158f2cc57SLiad Kaufman queue); 70258f2cc57SLiad Kaufman ret = -EIO; 70358f2cc57SLiad Kaufman goto out; 70458f2cc57SLiad Kaufman } 70558f2cc57SLiad Kaufman 70658f2cc57SLiad Kaufman /* Before redirecting the queue we need to de-activate it */ 70758f2cc57SLiad Kaufman iwl_trans_txq_disable(mvm->trans, queue, false); 70858f2cc57SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 70958f2cc57SLiad Kaufman if (ret) 71058f2cc57SLiad Kaufman IWL_ERR(mvm, "Failed SCD disable TXQ %d (ret=%d)\n", queue, 71158f2cc57SLiad Kaufman ret); 71258f2cc57SLiad Kaufman 71358f2cc57SLiad Kaufman /* Make sure the SCD wrptr is correctly set before reconfiguring */ 714ca3b9c6bSSara Sharon iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, wdg_timeout); 71558f2cc57SLiad Kaufman 716edbe961cSLiad Kaufman /* Update the TID "owner" of the queue */ 717edbe961cSLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 718edbe961cSLiad Kaufman 71958f2cc57SLiad Kaufman /* TODO: Work-around SCD bug when moving back by multiples of 0x40 */ 72058f2cc57SLiad Kaufman 72158f2cc57SLiad Kaufman /* Redirect to lower AC */ 72258f2cc57SLiad Kaufman iwl_mvm_reconfig_scd(mvm, queue, iwl_mvm_ac_to_tx_fifo[ac], 7230ec9257bSSara Sharon cmd.sta_id, tid, IWL_FRAME_LIMIT, ssn); 72458f2cc57SLiad Kaufman 72558f2cc57SLiad Kaufman /* Update AC marking of the queue */ 72658f2cc57SLiad Kaufman mvm->queue_info[queue].mac80211_ac = ac; 72758f2cc57SLiad Kaufman 72858f2cc57SLiad Kaufman /* 72958f2cc57SLiad Kaufman * Mark queue as shared in transport if shared 73058f2cc57SLiad Kaufman * Note this has to be done after queue enablement because enablement 73158f2cc57SLiad Kaufman * can also set this value, and there is no indication there to shared 73258f2cc57SLiad Kaufman * queues 73358f2cc57SLiad Kaufman */ 73458f2cc57SLiad Kaufman if (shared_queue) 73558f2cc57SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 73658f2cc57SLiad Kaufman 73758f2cc57SLiad Kaufman out: 738cfbc6c4cSSara Sharon /* Continue using the queue */ 739*b58e3d43SJohannes Berg clear_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, &txq->state); 74058f2cc57SLiad Kaufman 74158f2cc57SLiad Kaufman return ret; 74258f2cc57SLiad Kaufman } 74358f2cc57SLiad Kaufman 74499448a8cSJohannes Berg static int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 sta_id, 74599448a8cSJohannes Berg u8 minq, u8 maxq) 74699448a8cSJohannes Berg { 74799448a8cSJohannes Berg int i; 74899448a8cSJohannes Berg 749f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 75099448a8cSJohannes Berg 751e5b72e3bSJohannes Berg if (WARN(maxq >= mvm->trans->trans_cfg->base_params->num_of_queues, 752e5b72e3bSJohannes Berg "max queue %d >= num_of_queues (%d)", maxq, 753e5b72e3bSJohannes Berg mvm->trans->trans_cfg->base_params->num_of_queues)) 754e5b72e3bSJohannes Berg maxq = mvm->trans->trans_cfg->base_params->num_of_queues - 1; 755e5b72e3bSJohannes Berg 75699448a8cSJohannes Berg /* This should not be hit with new TX path */ 75799448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 75899448a8cSJohannes Berg return -ENOSPC; 75999448a8cSJohannes Berg 76099448a8cSJohannes Berg /* Start by looking for a free queue */ 76199448a8cSJohannes Berg for (i = minq; i <= maxq; i++) 7621c14089eSJohannes Berg if (mvm->queue_info[i].tid_bitmap == 0 && 76399448a8cSJohannes Berg mvm->queue_info[i].status == IWL_MVM_QUEUE_FREE) 76499448a8cSJohannes Berg return i; 76599448a8cSJohannes Berg 76699448a8cSJohannes Berg return -ENOSPC; 76799448a8cSJohannes Berg } 76899448a8cSJohannes Berg 769cfbc6c4cSSara Sharon static int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm, 77099448a8cSJohannes Berg u8 sta_id, u8 tid, unsigned int timeout) 77199448a8cSJohannes Berg { 772d5399f11SMordechay Goodstein int queue, size; 77399448a8cSJohannes Berg 77499448a8cSJohannes Berg if (tid == IWL_MAX_TID_COUNT) { 77599448a8cSJohannes Berg tid = IWL_MGMT_TID; 776ff911dcaSShaul Triebitz size = max_t(u32, IWL_MGMT_QUEUE_SIZE, 777ff911dcaSShaul Triebitz mvm->trans->cfg->min_txq_size); 778d5399f11SMordechay Goodstein } else { 779d5399f11SMordechay Goodstein struct ieee80211_sta *sta; 780d5399f11SMordechay Goodstein 781d5399f11SMordechay Goodstein rcu_read_lock(); 782d5399f11SMordechay Goodstein sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 783d5399f11SMordechay Goodstein 784d5399f11SMordechay Goodstein /* this queue isn't used for traffic (cab_queue) */ 785d5399f11SMordechay Goodstein if (IS_ERR_OR_NULL(sta)) { 786d5399f11SMordechay Goodstein size = IWL_MGMT_QUEUE_SIZE; 787046d2e7cSSriram R } else if (sta->deflink.he_cap.has_he) { 788d5399f11SMordechay Goodstein /* support for 256 ba size */ 789d5399f11SMordechay Goodstein size = IWL_DEFAULT_QUEUE_SIZE_HE; 790d5399f11SMordechay Goodstein } else { 791d5399f11SMordechay Goodstein size = IWL_DEFAULT_QUEUE_SIZE; 79299448a8cSJohannes Berg } 79399448a8cSJohannes Berg 794d5399f11SMordechay Goodstein rcu_read_unlock(); 795d5399f11SMordechay Goodstein } 796d5399f11SMordechay Goodstein 797d5399f11SMordechay Goodstein /* take the min with bc tbl entries allowed */ 798d5399f11SMordechay Goodstein size = min_t(u32, size, mvm->trans->txqs.bc_tbl_size / sizeof(u16)); 799d5399f11SMordechay Goodstein 800d5399f11SMordechay Goodstein /* size needs to be power of 2 values for calculating read/write pointers */ 801d5399f11SMordechay Goodstein size = rounddown_pow_of_two(size); 802d5399f11SMordechay Goodstein 80392f78d4bSJohannes Berg do { 804227f2597SJohannes Berg queue = iwl_trans_txq_alloc(mvm->trans, 0, BIT(sta_id), 80585b17a33SJohannes Berg tid, size, timeout); 80692f78d4bSJohannes Berg 80792f78d4bSJohannes Berg if (queue < 0) 80899448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 80992f78d4bSJohannes Berg "Failed allocating TXQ of size %d for sta %d tid %d, ret: %d\n", 81092f78d4bSJohannes Berg size, sta_id, tid, queue); 81192f78d4bSJohannes Berg size /= 2; 81292f78d4bSJohannes Berg } while (queue < 0 && size >= 16); 81392f78d4bSJohannes Berg 81492f78d4bSJohannes Berg if (queue < 0) 81599448a8cSJohannes Berg return queue; 81699448a8cSJohannes Berg 81799448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Enabling TXQ #%d for sta %d tid %d\n", 81899448a8cSJohannes Berg queue, sta_id, tid); 81999448a8cSJohannes Berg 82099448a8cSJohannes Berg return queue; 82199448a8cSJohannes Berg } 82299448a8cSJohannes Berg 823310181ecSSara Sharon static int iwl_mvm_sta_alloc_queue_tvqm(struct iwl_mvm *mvm, 824310181ecSSara Sharon struct ieee80211_sta *sta, u8 ac, 825310181ecSSara Sharon int tid) 826310181ecSSara Sharon { 827310181ecSSara Sharon struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 828cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 829cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 830310181ecSSara Sharon unsigned int wdg_timeout = 831310181ecSSara Sharon iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 832310181ecSSara Sharon int queue = -1; 833310181ecSSara Sharon 834310181ecSSara Sharon lockdep_assert_held(&mvm->mutex); 835310181ecSSara Sharon 836310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 837310181ecSSara Sharon "Allocating queue for sta %d on tid %d\n", 838310181ecSSara Sharon mvmsta->sta_id, tid); 839cfbc6c4cSSara Sharon queue = iwl_mvm_tvqm_enable_txq(mvm, mvmsta->sta_id, tid, wdg_timeout); 840310181ecSSara Sharon if (queue < 0) 841310181ecSSara Sharon return queue; 842310181ecSSara Sharon 843cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 844cfbc6c4cSSara Sharon mvm->tvqm_info[queue].txq_tid = tid; 845cfbc6c4cSSara Sharon mvm->tvqm_info[queue].sta_id = mvmsta->sta_id; 846cfbc6c4cSSara Sharon 847310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, "Allocated queue is %d\n", queue); 848310181ecSSara Sharon 849310181ecSSara Sharon spin_lock_bh(&mvmsta->lock); 850310181ecSSara Sharon mvmsta->tid_data[tid].txq_id = queue; 851310181ecSSara Sharon spin_unlock_bh(&mvmsta->lock); 852310181ecSSara Sharon 853310181ecSSara Sharon return 0; 854310181ecSSara Sharon } 855310181ecSSara Sharon 856cfbc6c4cSSara Sharon static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, 857cfbc6c4cSSara Sharon struct ieee80211_sta *sta, 858cfbc6c4cSSara Sharon int queue, u8 sta_id, u8 tid) 85999448a8cSJohannes Berg { 86099448a8cSJohannes Berg bool enable_queue = true; 86199448a8cSJohannes Berg 86299448a8cSJohannes Berg /* Make sure this TID isn't already enabled */ 86399448a8cSJohannes Berg if (mvm->queue_info[queue].tid_bitmap & BIT(tid)) { 86499448a8cSJohannes Berg IWL_ERR(mvm, "Trying to enable TXQ %d with existing TID %d\n", 86599448a8cSJohannes Berg queue, tid); 86699448a8cSJohannes Berg return false; 86799448a8cSJohannes Berg } 86899448a8cSJohannes Berg 86999448a8cSJohannes Berg /* Update mappings and refcounts */ 8701c14089eSJohannes Berg if (mvm->queue_info[queue].tid_bitmap) 87199448a8cSJohannes Berg enable_queue = false; 87299448a8cSJohannes Berg 87399448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap |= BIT(tid); 87499448a8cSJohannes Berg mvm->queue_info[queue].ra_sta_id = sta_id; 87599448a8cSJohannes Berg 87699448a8cSJohannes Berg if (enable_queue) { 87799448a8cSJohannes Berg if (tid != IWL_MAX_TID_COUNT) 87899448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = 87999448a8cSJohannes Berg tid_to_mac80211_ac[tid]; 88099448a8cSJohannes Berg else 88199448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = IEEE80211_AC_VO; 88299448a8cSJohannes Berg 88399448a8cSJohannes Berg mvm->queue_info[queue].txq_tid = tid; 88499448a8cSJohannes Berg } 88599448a8cSJohannes Berg 886cfbc6c4cSSara Sharon if (sta) { 887cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 888cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 889cfbc6c4cSSara Sharon 890cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 891cfbc6c4cSSara Sharon } 892cfbc6c4cSSara Sharon 89399448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 894cfbc6c4cSSara Sharon "Enabling TXQ #%d tids=0x%x\n", 895cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 89699448a8cSJohannes Berg 89799448a8cSJohannes Berg return enable_queue; 89899448a8cSJohannes Berg } 89999448a8cSJohannes Berg 900cfbc6c4cSSara Sharon static bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 901cfbc6c4cSSara Sharon int queue, u16 ssn, 90299448a8cSJohannes Berg const struct iwl_trans_txq_scd_cfg *cfg, 90399448a8cSJohannes Berg unsigned int wdg_timeout) 90499448a8cSJohannes Berg { 90599448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 90699448a8cSJohannes Berg .scd_queue = queue, 90799448a8cSJohannes Berg .action = SCD_CFG_ENABLE_QUEUE, 90899448a8cSJohannes Berg .window = cfg->frame_limit, 90999448a8cSJohannes Berg .sta_id = cfg->sta_id, 91099448a8cSJohannes Berg .ssn = cpu_to_le16(ssn), 91199448a8cSJohannes Berg .tx_fifo = cfg->fifo, 91299448a8cSJohannes Berg .aggregate = cfg->aggregate, 91399448a8cSJohannes Berg .tid = cfg->tid, 91499448a8cSJohannes Berg }; 91599448a8cSJohannes Berg bool inc_ssn; 91699448a8cSJohannes Berg 91799448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 91899448a8cSJohannes Berg return false; 91999448a8cSJohannes Berg 92099448a8cSJohannes Berg /* Send the enabling command if we need to */ 921cfbc6c4cSSara Sharon if (!iwl_mvm_update_txq_mapping(mvm, sta, queue, cfg->sta_id, cfg->tid)) 92299448a8cSJohannes Berg return false; 92399448a8cSJohannes Berg 92499448a8cSJohannes Berg inc_ssn = iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, 92599448a8cSJohannes Berg NULL, wdg_timeout); 92699448a8cSJohannes Berg if (inc_ssn) 92799448a8cSJohannes Berg le16_add_cpu(&cmd.ssn, 1); 92899448a8cSJohannes Berg 92999448a8cSJohannes Berg WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd), 93099448a8cSJohannes Berg "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo); 93199448a8cSJohannes Berg 93299448a8cSJohannes Berg return inc_ssn; 93399448a8cSJohannes Berg } 93499448a8cSJohannes Berg 935b3a87f11SJohannes Berg static void iwl_mvm_change_queue_tid(struct iwl_mvm *mvm, int queue) 93619aefa45SLiad Kaufman { 93719aefa45SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 93819aefa45SLiad Kaufman .scd_queue = queue, 93919aefa45SLiad Kaufman .action = SCD_CFG_UPDATE_QUEUE_TID, 94019aefa45SLiad Kaufman }; 94119aefa45SLiad Kaufman int tid; 94219aefa45SLiad Kaufman unsigned long tid_bitmap; 94319aefa45SLiad Kaufman int ret; 94419aefa45SLiad Kaufman 94519aefa45SLiad Kaufman lockdep_assert_held(&mvm->mutex); 94619aefa45SLiad Kaufman 947bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 948bb49701bSSara Sharon return; 949bb49701bSSara Sharon 95019aefa45SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 95119aefa45SLiad Kaufman 95219aefa45SLiad Kaufman if (WARN(!tid_bitmap, "TXQ %d has no tids assigned to it\n", queue)) 95319aefa45SLiad Kaufman return; 95419aefa45SLiad Kaufman 95519aefa45SLiad Kaufman /* Find any TID for queue */ 95619aefa45SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 95719aefa45SLiad Kaufman cmd.tid = tid; 95819aefa45SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 95919aefa45SLiad Kaufman 96019aefa45SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 961341ca402SLiad Kaufman if (ret) { 96219aefa45SLiad Kaufman IWL_ERR(mvm, "Failed to update owner of TXQ %d (ret=%d)\n", 96319aefa45SLiad Kaufman queue, ret); 964341ca402SLiad Kaufman return; 965341ca402SLiad Kaufman } 966341ca402SLiad Kaufman 967341ca402SLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 96819aefa45SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Changed TXQ %d ownership to tid %d\n", 96919aefa45SLiad Kaufman queue, tid); 97019aefa45SLiad Kaufman } 97119aefa45SLiad Kaufman 9729f9af3d7SLiad Kaufman static void iwl_mvm_unshare_queue(struct iwl_mvm *mvm, int queue) 9739f9af3d7SLiad Kaufman { 9749f9af3d7SLiad Kaufman struct ieee80211_sta *sta; 9759f9af3d7SLiad Kaufman struct iwl_mvm_sta *mvmsta; 976806911daSSharon Dvir u8 sta_id; 9779f9af3d7SLiad Kaufman int tid = -1; 9789f9af3d7SLiad Kaufman unsigned long tid_bitmap; 9799f9af3d7SLiad Kaufman unsigned int wdg_timeout; 9809f9af3d7SLiad Kaufman int ssn; 9819f9af3d7SLiad Kaufman int ret = true; 9829f9af3d7SLiad Kaufman 983bb49701bSSara Sharon /* queue sharing is disabled on new TX path */ 984bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 985bb49701bSSara Sharon return; 986bb49701bSSara Sharon 9879f9af3d7SLiad Kaufman lockdep_assert_held(&mvm->mutex); 9889f9af3d7SLiad Kaufman 9899f9af3d7SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 9909f9af3d7SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 9919f9af3d7SLiad Kaufman 9929f9af3d7SLiad Kaufman /* Find TID for queue, and make sure it is the only one on the queue */ 9939f9af3d7SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 9949f9af3d7SLiad Kaufman if (tid_bitmap != BIT(tid)) { 9959f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to unshare q %d, active tids=0x%lx\n", 9969f9af3d7SLiad Kaufman queue, tid_bitmap); 9979f9af3d7SLiad Kaufman return; 9989f9af3d7SLiad Kaufman } 9999f9af3d7SLiad Kaufman 10009f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Unsharing TXQ %d, keeping tid %d\n", queue, 10019f9af3d7SLiad Kaufman tid); 10029f9af3d7SLiad Kaufman 10039f9af3d7SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 10049f9af3d7SLiad Kaufman lockdep_is_held(&mvm->mutex)); 10059f9af3d7SLiad Kaufman 10069f9af3d7SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 10079f9af3d7SLiad Kaufman return; 10089f9af3d7SLiad Kaufman 10099f9af3d7SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 10109f9af3d7SLiad Kaufman wdg_timeout = iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 10119f9af3d7SLiad Kaufman 10129f9af3d7SLiad Kaufman ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 10139f9af3d7SLiad Kaufman 1014cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, 10159f9af3d7SLiad Kaufman tid_to_mac80211_ac[tid], ssn, 1016cfbc6c4cSSara Sharon wdg_timeout, true, 1017cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 10189f9af3d7SLiad Kaufman if (ret) { 10199f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to redirect TXQ %d\n", queue); 10209f9af3d7SLiad Kaufman return; 10219f9af3d7SLiad Kaufman } 10229f9af3d7SLiad Kaufman 10239f9af3d7SLiad Kaufman /* If aggs should be turned back on - do it */ 10249f9af3d7SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) { 10259cd70e80SEmmanuel Grumbach struct iwl_mvm_add_sta_cmd cmd = {0}; 10269f9af3d7SLiad Kaufman 10279f9af3d7SLiad Kaufman mvmsta->tid_disable_agg &= ~BIT(tid); 10289f9af3d7SLiad Kaufman 10299f9af3d7SLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 10309f9af3d7SLiad Kaufman cmd.sta_id = mvmsta->sta_id; 10319f9af3d7SLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 10329f9af3d7SLiad Kaufman cmd.modify_mask = STA_MODIFY_TID_DISABLE_TX; 10339f9af3d7SLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 10349f9af3d7SLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 10359f9af3d7SLiad Kaufman 10369f9af3d7SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 10379f9af3d7SLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), &cmd); 10389f9af3d7SLiad Kaufman if (!ret) { 10399f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 10409f9af3d7SLiad Kaufman "TXQ #%d is now aggregated again\n", 10419f9af3d7SLiad Kaufman queue); 10429f9af3d7SLiad Kaufman 10439f9af3d7SLiad Kaufman /* Mark queue intenally as aggregating again */ 10449f9af3d7SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, false); 10459f9af3d7SLiad Kaufman } 10469f9af3d7SLiad Kaufman } 10479f9af3d7SLiad Kaufman 10489f9af3d7SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 10499f9af3d7SLiad Kaufman } 10509f9af3d7SLiad Kaufman 105199448a8cSJohannes Berg /* 105299448a8cSJohannes Berg * Remove inactive TIDs of a given queue. 105399448a8cSJohannes Berg * If all queue TIDs are inactive - mark the queue as inactive 105499448a8cSJohannes Berg * If only some the queue TIDs are inactive - unmap them from the queue 1055724fe771SJohannes Berg * 1056724fe771SJohannes Berg * Returns %true if all TIDs were removed and the queue could be reused. 105799448a8cSJohannes Berg */ 1058724fe771SJohannes Berg static bool iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm, 105999448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta, int queue, 106090d2d94cSJohannes Berg unsigned long tid_bitmap, 1061b3a87f11SJohannes Berg unsigned long *unshare_queues, 1062b3a87f11SJohannes Berg unsigned long *changetid_queues) 106399448a8cSJohannes Berg { 1064af3cdfd3SJakub Kicinski unsigned int tid; 106599448a8cSJohannes Berg 106699448a8cSJohannes Berg lockdep_assert_held(&mvmsta->lock); 1067f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 106899448a8cSJohannes Berg 106999448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1070724fe771SJohannes Berg return false; 107199448a8cSJohannes Berg 107299448a8cSJohannes Berg /* Go over all non-active TIDs, incl. IWL_MAX_TID_COUNT (for mgmt) */ 107399448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 107499448a8cSJohannes Berg /* If some TFDs are still queued - don't mark TID as inactive */ 107599448a8cSJohannes Berg if (iwl_mvm_tid_queued(mvm, &mvmsta->tid_data[tid])) 107699448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 107799448a8cSJohannes Berg 107899448a8cSJohannes Berg /* Don't mark as inactive any TID that has an active BA */ 107999448a8cSJohannes Berg if (mvmsta->tid_data[tid].state != IWL_AGG_OFF) 108099448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 108199448a8cSJohannes Berg } 108299448a8cSJohannes Berg 1083724fe771SJohannes Berg /* If all TIDs in the queue are inactive - return it can be reused */ 108499448a8cSJohannes Berg if (tid_bitmap == mvm->queue_info[queue].tid_bitmap) { 1085724fe771SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Queue %d is inactive\n", queue); 1086724fe771SJohannes Berg return true; 108799448a8cSJohannes Berg } 108899448a8cSJohannes Berg 108999448a8cSJohannes Berg /* 109099448a8cSJohannes Berg * If we are here, this is a shared queue and not all TIDs timed-out. 109199448a8cSJohannes Berg * Remove the ones that did. 109299448a8cSJohannes Berg */ 109399448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1094d4530f63SJohannes Berg u16 q_tid_bitmap; 109599448a8cSJohannes Berg 109699448a8cSJohannes Berg mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 109799448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 109899448a8cSJohannes Berg 1099d4530f63SJohannes Berg q_tid_bitmap = mvm->queue_info[queue].tid_bitmap; 1100b3a87f11SJohannes Berg 1101b3a87f11SJohannes Berg /* 1102b3a87f11SJohannes Berg * We need to take into account a situation in which a TXQ was 1103b3a87f11SJohannes Berg * allocated to TID x, and then turned shared by adding TIDs y 1104b3a87f11SJohannes Berg * and z. If TID x becomes inactive and is removed from the TXQ, 1105b3a87f11SJohannes Berg * ownership must be given to one of the remaining TIDs. 1106b3a87f11SJohannes Berg * This is mainly because if TID x continues - a new queue can't 1107b3a87f11SJohannes Berg * be allocated for it as long as it is an owner of another TXQ. 1108b3a87f11SJohannes Berg * 1109b3a87f11SJohannes Berg * Mark this queue in the right bitmap, we'll send the command 1110b3a87f11SJohannes Berg * to the firmware later. 1111b3a87f11SJohannes Berg */ 1112d4530f63SJohannes Berg if (!(q_tid_bitmap & BIT(mvm->queue_info[queue].txq_tid))) 1113b3a87f11SJohannes Berg set_bit(queue, changetid_queues); 1114b3a87f11SJohannes Berg 111599448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 111699448a8cSJohannes Berg "Removing inactive TID %d from shared Q:%d\n", 111799448a8cSJohannes Berg tid, queue); 111899448a8cSJohannes Berg } 111999448a8cSJohannes Berg 112099448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 112199448a8cSJohannes Berg "TXQ #%d left with tid bitmap 0x%x\n", queue, 112299448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap); 112399448a8cSJohannes Berg 112499448a8cSJohannes Berg /* 112599448a8cSJohannes Berg * There may be different TIDs with the same mac queues, so make 112699448a8cSJohannes Berg * sure all TIDs have existing corresponding mac queues enabled 112799448a8cSJohannes Berg */ 112899448a8cSJohannes Berg tid_bitmap = mvm->queue_info[queue].tid_bitmap; 112999448a8cSJohannes Berg 113099448a8cSJohannes Berg /* If the queue is marked as shared - "unshare" it */ 11311c14089eSJohannes Berg if (hweight16(mvm->queue_info[queue].tid_bitmap) == 1 && 113299448a8cSJohannes Berg mvm->queue_info[queue].status == IWL_MVM_QUEUE_SHARED) { 113399448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Marking Q:%d for reconfig\n", 113499448a8cSJohannes Berg queue); 113590d2d94cSJohannes Berg set_bit(queue, unshare_queues); 113699448a8cSJohannes Berg } 1137724fe771SJohannes Berg 1138724fe771SJohannes Berg return false; 113999448a8cSJohannes Berg } 114099448a8cSJohannes Berg 1141724fe771SJohannes Berg /* 1142724fe771SJohannes Berg * Check for inactivity - this includes checking if any queue 1143724fe771SJohannes Berg * can be unshared and finding one (and only one) that can be 1144724fe771SJohannes Berg * reused. 1145724fe771SJohannes Berg * This function is also invoked as a sort of clean-up task, 1146724fe771SJohannes Berg * in which case @alloc_for_sta is IWL_MVM_INVALID_STA. 1147724fe771SJohannes Berg * 1148724fe771SJohannes Berg * Returns the queue number, or -ENOSPC. 1149724fe771SJohannes Berg */ 1150724fe771SJohannes Berg static int iwl_mvm_inactivity_check(struct iwl_mvm *mvm, u8 alloc_for_sta) 115199448a8cSJohannes Berg { 115299448a8cSJohannes Berg unsigned long now = jiffies; 115390d2d94cSJohannes Berg unsigned long unshare_queues = 0; 1154b3a87f11SJohannes Berg unsigned long changetid_queues = 0; 1155724fe771SJohannes Berg int i, ret, free_queue = -ENOSPC; 1156cfbc6c4cSSara Sharon struct ieee80211_sta *queue_owner = NULL; 115799448a8cSJohannes Berg 1158df2a2245SJohannes Berg lockdep_assert_held(&mvm->mutex); 1159df2a2245SJohannes Berg 116099448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1161724fe771SJohannes Berg return -ENOSPC; 116299448a8cSJohannes Berg 116399448a8cSJohannes Berg rcu_read_lock(); 116499448a8cSJohannes Berg 1165459ab045SJohannes Berg /* we skip the CMD queue below by starting at 1 */ 1166459ab045SJohannes Berg BUILD_BUG_ON(IWL_MVM_DQA_CMD_QUEUE != 0); 1167459ab045SJohannes Berg 1168459ab045SJohannes Berg for (i = 1; i < IWL_MAX_HW_QUEUES; i++) { 116999448a8cSJohannes Berg struct ieee80211_sta *sta; 117099448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta; 117199448a8cSJohannes Berg u8 sta_id; 117299448a8cSJohannes Berg int tid; 117399448a8cSJohannes Berg unsigned long inactive_tid_bitmap = 0; 117499448a8cSJohannes Berg unsigned long queue_tid_bitmap; 117599448a8cSJohannes Berg 117699448a8cSJohannes Berg queue_tid_bitmap = mvm->queue_info[i].tid_bitmap; 1177459ab045SJohannes Berg if (!queue_tid_bitmap) 1178459ab045SJohannes Berg continue; 117999448a8cSJohannes Berg 118099448a8cSJohannes Berg /* If TXQ isn't in active use anyway - nothing to do here... */ 118199448a8cSJohannes Berg if (mvm->queue_info[i].status != IWL_MVM_QUEUE_READY && 1182459ab045SJohannes Berg mvm->queue_info[i].status != IWL_MVM_QUEUE_SHARED) 118399448a8cSJohannes Berg continue; 118499448a8cSJohannes Berg 118599448a8cSJohannes Berg /* Check to see if there are inactive TIDs on this queue */ 118699448a8cSJohannes Berg for_each_set_bit(tid, &queue_tid_bitmap, 118799448a8cSJohannes Berg IWL_MAX_TID_COUNT + 1) { 118899448a8cSJohannes Berg if (time_after(mvm->queue_info[i].last_frame_time[tid] + 118999448a8cSJohannes Berg IWL_MVM_DQA_QUEUE_TIMEOUT, now)) 119099448a8cSJohannes Berg continue; 119199448a8cSJohannes Berg 119299448a8cSJohannes Berg inactive_tid_bitmap |= BIT(tid); 119399448a8cSJohannes Berg } 119499448a8cSJohannes Berg 119599448a8cSJohannes Berg /* If all TIDs are active - finish check on this queue */ 119699448a8cSJohannes Berg if (!inactive_tid_bitmap) 119799448a8cSJohannes Berg continue; 119899448a8cSJohannes Berg 119999448a8cSJohannes Berg /* 120099448a8cSJohannes Berg * If we are here - the queue hadn't been served recently and is 120199448a8cSJohannes Berg * in use 120299448a8cSJohannes Berg */ 120399448a8cSJohannes Berg 120499448a8cSJohannes Berg sta_id = mvm->queue_info[i].ra_sta_id; 120599448a8cSJohannes Berg sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 120699448a8cSJohannes Berg 120799448a8cSJohannes Berg /* 120899448a8cSJohannes Berg * If the STA doesn't exist anymore, it isn't an error. It could 120999448a8cSJohannes Berg * be that it was removed since getting the queues, and in this 121099448a8cSJohannes Berg * case it should've inactivated its queues anyway. 121199448a8cSJohannes Berg */ 121299448a8cSJohannes Berg if (IS_ERR_OR_NULL(sta)) 121399448a8cSJohannes Berg continue; 121499448a8cSJohannes Berg 121599448a8cSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 121699448a8cSJohannes Berg 1217f3f240f9SJohannes Berg spin_lock_bh(&mvmsta->lock); 1218724fe771SJohannes Berg ret = iwl_mvm_remove_inactive_tids(mvm, mvmsta, i, 121990d2d94cSJohannes Berg inactive_tid_bitmap, 1220b3a87f11SJohannes Berg &unshare_queues, 1221b3a87f11SJohannes Berg &changetid_queues); 1222e6d419f9SJohannes Berg if (ret && free_queue < 0) { 1223cfbc6c4cSSara Sharon queue_owner = sta; 1224e6d419f9SJohannes Berg free_queue = i; 1225cfbc6c4cSSara Sharon } 1226459ab045SJohannes Berg /* only unlock sta lock - we still need the queue info lock */ 1227f3f240f9SJohannes Berg spin_unlock_bh(&mvmsta->lock); 122899448a8cSJohannes Berg } 122999448a8cSJohannes Berg 1230df2a2245SJohannes Berg 1231df2a2245SJohannes Berg /* Reconfigure queues requiring reconfiguation */ 123290d2d94cSJohannes Berg for_each_set_bit(i, &unshare_queues, IWL_MAX_HW_QUEUES) 123390d2d94cSJohannes Berg iwl_mvm_unshare_queue(mvm, i); 1234b3a87f11SJohannes Berg for_each_set_bit(i, &changetid_queues, IWL_MAX_HW_QUEUES) 1235b3a87f11SJohannes Berg iwl_mvm_change_queue_tid(mvm, i); 1236724fe771SJohannes Berg 1237fbb1461aSJohannes Berg rcu_read_unlock(); 1238fbb1461aSJohannes Berg 1239724fe771SJohannes Berg if (free_queue >= 0 && alloc_for_sta != IWL_MVM_INVALID_STA) { 1240cfbc6c4cSSara Sharon ret = iwl_mvm_free_inactive_queue(mvm, free_queue, queue_owner, 1241724fe771SJohannes Berg alloc_for_sta); 1242fbb1461aSJohannes Berg if (ret) 1243724fe771SJohannes Berg return ret; 1244724fe771SJohannes Berg } 1245724fe771SJohannes Berg 1246724fe771SJohannes Berg return free_queue; 124799448a8cSJohannes Berg } 124899448a8cSJohannes Berg 1249c20e08b0SJohannes Berg static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm, 1250cfbc6c4cSSara Sharon struct ieee80211_sta *sta, u8 ac, int tid) 1251c20e08b0SJohannes Berg { 1252c20e08b0SJohannes Berg struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1253c20e08b0SJohannes Berg struct iwl_trans_txq_scd_cfg cfg = { 1254c20e08b0SJohannes Berg .fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac), 1255c20e08b0SJohannes Berg .sta_id = mvmsta->sta_id, 1256c20e08b0SJohannes Berg .tid = tid, 1257c20e08b0SJohannes Berg .frame_limit = IWL_FRAME_LIMIT, 1258c20e08b0SJohannes Berg }; 1259c20e08b0SJohannes Berg unsigned int wdg_timeout = 1260c20e08b0SJohannes Berg iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 1261c20e08b0SJohannes Berg int queue = -1; 1262c6ce1c74SJohannes Berg u16 queue_tmp; 1263c20e08b0SJohannes Berg unsigned long disable_agg_tids = 0; 1264c20e08b0SJohannes Berg enum iwl_mvm_agg_state queue_state; 1265c20e08b0SJohannes Berg bool shared_queue = false, inc_ssn; 1266c20e08b0SJohannes Berg int ssn; 1267c20e08b0SJohannes Berg unsigned long tfd_queue_mask; 1268c20e08b0SJohannes Berg int ret; 1269c20e08b0SJohannes Berg 1270c20e08b0SJohannes Berg lockdep_assert_held(&mvm->mutex); 1271c20e08b0SJohannes Berg 1272c20e08b0SJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1273c20e08b0SJohannes Berg return iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 1274c20e08b0SJohannes Berg 1275c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1276c20e08b0SJohannes Berg tfd_queue_mask = mvmsta->tfd_queue_msk; 127735739348SSara Sharon ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 1278c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1279c20e08b0SJohannes Berg 1280cfbc6c4cSSara Sharon if (tid == IWL_MAX_TID_COUNT) { 1281c20e08b0SJohannes Berg queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 1282c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_MGMT_QUEUE, 1283c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_MGMT_QUEUE); 1284c20e08b0SJohannes Berg if (queue >= IWL_MVM_DQA_MIN_MGMT_QUEUE) 1285c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Found free MGMT queue #%d\n", 1286c20e08b0SJohannes Berg queue); 1287c20e08b0SJohannes Berg 1288c20e08b0SJohannes Berg /* If no such queue is found, we'll use a DATA queue instead */ 1289c20e08b0SJohannes Berg } 1290c20e08b0SJohannes Berg 1291c20e08b0SJohannes Berg if ((queue < 0 && mvmsta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) && 1292c20e08b0SJohannes Berg (mvm->queue_info[mvmsta->reserved_queue].status == 1293724fe771SJohannes Berg IWL_MVM_QUEUE_RESERVED)) { 1294c20e08b0SJohannes Berg queue = mvmsta->reserved_queue; 1295c20e08b0SJohannes Berg mvm->queue_info[queue].reserved = true; 1296c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Using reserved queue #%d\n", queue); 1297c20e08b0SJohannes Berg } 1298c20e08b0SJohannes Berg 1299c20e08b0SJohannes Berg if (queue < 0) 1300c20e08b0SJohannes Berg queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 1301c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 1302c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 1303724fe771SJohannes Berg if (queue < 0) { 1304724fe771SJohannes Berg /* try harder - perhaps kill an inactive queue */ 1305724fe771SJohannes Berg queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id); 1306c20e08b0SJohannes Berg } 1307c20e08b0SJohannes Berg 1308c20e08b0SJohannes Berg /* No free queue - we'll have to share */ 1309c20e08b0SJohannes Berg if (queue <= 0) { 1310c20e08b0SJohannes Berg queue = iwl_mvm_get_shared_queue(mvm, tfd_queue_mask, ac); 1311c20e08b0SJohannes Berg if (queue > 0) { 1312c20e08b0SJohannes Berg shared_queue = true; 1313c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_SHARED; 1314c20e08b0SJohannes Berg } 1315c20e08b0SJohannes Berg } 1316c20e08b0SJohannes Berg 1317c20e08b0SJohannes Berg /* 1318c20e08b0SJohannes Berg * Mark TXQ as ready, even though it hasn't been fully configured yet, 1319c20e08b0SJohannes Berg * to make sure no one else takes it. 1320c20e08b0SJohannes Berg * This will allow avoiding re-acquiring the lock at the end of the 1321c20e08b0SJohannes Berg * configuration. On error we'll mark it back as free. 1322c20e08b0SJohannes Berg */ 1323c20e08b0SJohannes Berg if (queue > 0 && !shared_queue) 1324c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 1325c20e08b0SJohannes Berg 1326c20e08b0SJohannes Berg /* This shouldn't happen - out of queues */ 1327c20e08b0SJohannes Berg if (WARN_ON(queue <= 0)) { 1328c20e08b0SJohannes Berg IWL_ERR(mvm, "No available queues for tid %d on sta_id %d\n", 1329c20e08b0SJohannes Berg tid, cfg.sta_id); 1330c20e08b0SJohannes Berg return queue; 1331c20e08b0SJohannes Berg } 1332c20e08b0SJohannes Berg 1333c20e08b0SJohannes Berg /* 1334c20e08b0SJohannes Berg * Actual en/disablement of aggregations is through the ADD_STA HCMD, 1335c20e08b0SJohannes Berg * but for configuring the SCD to send A-MPDUs we need to mark the queue 1336c20e08b0SJohannes Berg * as aggregatable. 1337c20e08b0SJohannes Berg * Mark all DATA queues as allowing to be aggregated at some point 1338c20e08b0SJohannes Berg */ 1339c20e08b0SJohannes Berg cfg.aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1340c20e08b0SJohannes Berg queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE); 1341c20e08b0SJohannes Berg 1342c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 1343c20e08b0SJohannes Berg "Allocating %squeue #%d to sta %d on tid %d\n", 1344c20e08b0SJohannes Berg shared_queue ? "shared " : "", queue, 1345c20e08b0SJohannes Berg mvmsta->sta_id, tid); 1346c20e08b0SJohannes Berg 1347c20e08b0SJohannes Berg if (shared_queue) { 1348c20e08b0SJohannes Berg /* Disable any open aggs on this queue */ 1349c20e08b0SJohannes Berg disable_agg_tids = iwl_mvm_get_queue_agg_tids(mvm, queue); 1350c20e08b0SJohannes Berg 1351c20e08b0SJohannes Berg if (disable_agg_tids) { 1352c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Disabling aggs on queue %d\n", 1353c20e08b0SJohannes Berg queue); 1354c20e08b0SJohannes Berg iwl_mvm_invalidate_sta_queue(mvm, queue, 1355c20e08b0SJohannes Berg disable_agg_tids, false); 1356c20e08b0SJohannes Berg } 1357c20e08b0SJohannes Berg } 1358c20e08b0SJohannes Berg 1359cfbc6c4cSSara Sharon inc_ssn = iwl_mvm_enable_txq(mvm, sta, queue, ssn, &cfg, wdg_timeout); 1360c20e08b0SJohannes Berg 1361c20e08b0SJohannes Berg /* 1362c20e08b0SJohannes Berg * Mark queue as shared in transport if shared 1363c20e08b0SJohannes Berg * Note this has to be done after queue enablement because enablement 1364c20e08b0SJohannes Berg * can also set this value, and there is no indication there to shared 1365c20e08b0SJohannes Berg * queues 1366c20e08b0SJohannes Berg */ 1367c20e08b0SJohannes Berg if (shared_queue) 1368c20e08b0SJohannes Berg iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 1369c20e08b0SJohannes Berg 1370c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1371c20e08b0SJohannes Berg /* 1372c20e08b0SJohannes Berg * This looks racy, but it is not. We have only one packet for 1373c20e08b0SJohannes Berg * this ra/tid in our Tx path since we stop the Qdisc when we 1374c20e08b0SJohannes Berg * need to allocate a new TFD queue. 1375c20e08b0SJohannes Berg */ 137635739348SSara Sharon if (inc_ssn) { 1377c20e08b0SJohannes Berg mvmsta->tid_data[tid].seq_number += 0x10; 137835739348SSara Sharon ssn = (ssn + 1) & IEEE80211_SCTL_SEQ; 137935739348SSara Sharon } 1380c20e08b0SJohannes Berg mvmsta->tid_data[tid].txq_id = queue; 1381c20e08b0SJohannes Berg mvmsta->tfd_queue_msk |= BIT(queue); 1382c20e08b0SJohannes Berg queue_state = mvmsta->tid_data[tid].state; 1383c20e08b0SJohannes Berg 1384c20e08b0SJohannes Berg if (mvmsta->reserved_queue == queue) 1385c20e08b0SJohannes Berg mvmsta->reserved_queue = IEEE80211_INVAL_HW_QUEUE; 1386c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1387c20e08b0SJohannes Berg 1388c20e08b0SJohannes Berg if (!shared_queue) { 1389c20e08b0SJohannes Berg ret = iwl_mvm_sta_send_to_fw(mvm, sta, true, STA_MODIFY_QUEUES); 1390c20e08b0SJohannes Berg if (ret) 1391c20e08b0SJohannes Berg goto out_err; 1392c20e08b0SJohannes Berg 1393c20e08b0SJohannes Berg /* If we need to re-enable aggregations... */ 1394c20e08b0SJohannes Berg if (queue_state == IWL_AGG_ON) { 1395c20e08b0SJohannes Berg ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 1396c20e08b0SJohannes Berg if (ret) 1397c20e08b0SJohannes Berg goto out_err; 1398c20e08b0SJohannes Berg } 1399c20e08b0SJohannes Berg } else { 1400c20e08b0SJohannes Berg /* Redirect queue, if needed */ 1401cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, ac, ssn, 1402cfbc6c4cSSara Sharon wdg_timeout, false, 1403cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 1404c20e08b0SJohannes Berg if (ret) 1405c20e08b0SJohannes Berg goto out_err; 1406c20e08b0SJohannes Berg } 1407c20e08b0SJohannes Berg 1408c20e08b0SJohannes Berg return 0; 1409c20e08b0SJohannes Berg 1410c20e08b0SJohannes Berg out_err: 1411c6ce1c74SJohannes Berg queue_tmp = queue; 1412c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, sta, mvmsta->sta_id, &queue_tmp, tid); 1413c20e08b0SJohannes Berg 1414c20e08b0SJohannes Berg return ret; 1415c20e08b0SJohannes Berg } 1416c20e08b0SJohannes Berg 141724afba76SLiad Kaufman void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk) 141824afba76SLiad Kaufman { 141924afba76SLiad Kaufman struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, 142024afba76SLiad Kaufman add_stream_wk); 142124afba76SLiad Kaufman 142224afba76SLiad Kaufman mutex_lock(&mvm->mutex); 142324afba76SLiad Kaufman 1424724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 14259f9af3d7SLiad Kaufman 1426cfbc6c4cSSara Sharon while (!list_empty(&mvm->add_stream_txqs)) { 1427cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq; 1428cfbc6c4cSSara Sharon struct ieee80211_txq *txq; 1429cfbc6c4cSSara Sharon u8 tid; 143024afba76SLiad Kaufman 1431cfbc6c4cSSara Sharon mvmtxq = list_first_entry(&mvm->add_stream_txqs, 1432cfbc6c4cSSara Sharon struct iwl_mvm_txq, list); 143324afba76SLiad Kaufman 1434cfbc6c4cSSara Sharon txq = container_of((void *)mvmtxq, struct ieee80211_txq, 1435cfbc6c4cSSara Sharon drv_priv); 1436cfbc6c4cSSara Sharon tid = txq->tid; 1437cfbc6c4cSSara Sharon if (tid == IEEE80211_NUM_TIDS) 1438cfbc6c4cSSara Sharon tid = IWL_MAX_TID_COUNT; 1439cfbc6c4cSSara Sharon 14403d1d87abSJohannes Berg /* 14413d1d87abSJohannes Berg * We can't really do much here, but if this fails we can't 14423d1d87abSJohannes Berg * transmit anyway - so just don't transmit the frame etc. 14433d1d87abSJohannes Berg * and let them back up ... we've tried our best to allocate 14443d1d87abSJohannes Berg * a queue in the function itself. 14453d1d87abSJohannes Berg */ 14463d1d87abSJohannes Berg if (iwl_mvm_sta_alloc_queue(mvm, txq->sta, txq->ac, tid)) { 14473d1d87abSJohannes Berg list_del_init(&mvmtxq->list); 14483d1d87abSJohannes Berg continue; 14493d1d87abSJohannes Berg } 14503d1d87abSJohannes Berg 1451cfbc6c4cSSara Sharon list_del_init(&mvmtxq->list); 1452f5ae2f93SJohannes Berg local_bh_disable(); 1453cfbc6c4cSSara Sharon iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1454f5ae2f93SJohannes Berg local_bh_enable(); 145524afba76SLiad Kaufman } 145624afba76SLiad Kaufman 145724afba76SLiad Kaufman mutex_unlock(&mvm->mutex); 145824afba76SLiad Kaufman } 145924afba76SLiad Kaufman 146024afba76SLiad Kaufman static int iwl_mvm_reserve_sta_stream(struct iwl_mvm *mvm, 1461d5216a28SLiad Kaufman struct ieee80211_sta *sta, 1462d5216a28SLiad Kaufman enum nl80211_iftype vif_type) 146324afba76SLiad Kaufman { 146424afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 146524afba76SLiad Kaufman int queue; 146624afba76SLiad Kaufman 1467396952eeSSara Sharon /* queue reserving is disabled on new TX path */ 1468396952eeSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1469396952eeSSara Sharon return 0; 1470396952eeSSara Sharon 1471724fe771SJohannes Berg /* run the general cleanup/unsharing of queues */ 1472724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 14739794c64fSLiad Kaufman 147424afba76SLiad Kaufman /* Make sure we have free resources for this STA */ 1475d5216a28SLiad Kaufman if (vif_type == NL80211_IFTYPE_STATION && !sta->tdls && 14761c14089eSJohannes Berg !mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].tid_bitmap && 1477cf961e16SLiad Kaufman (mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].status == 1478cf961e16SLiad Kaufman IWL_MVM_QUEUE_FREE)) 1479d5216a28SLiad Kaufman queue = IWL_MVM_DQA_BSS_CLIENT_QUEUE; 1480d5216a28SLiad Kaufman else 14819794c64fSLiad Kaufman queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 14829794c64fSLiad Kaufman IWL_MVM_DQA_MIN_DATA_QUEUE, 148324afba76SLiad Kaufman IWL_MVM_DQA_MAX_DATA_QUEUE); 148424afba76SLiad Kaufman if (queue < 0) { 1485724fe771SJohannes Berg /* try again - this time kick out a queue if needed */ 1486724fe771SJohannes Berg queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id); 1487724fe771SJohannes Berg if (queue < 0) { 148824afba76SLiad Kaufman IWL_ERR(mvm, "No available queues for new station\n"); 148924afba76SLiad Kaufman return -ENOSPC; 1490724fe771SJohannes Berg } 149124afba76SLiad Kaufman } 1492cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_RESERVED; 149324afba76SLiad Kaufman 149424afba76SLiad Kaufman mvmsta->reserved_queue = queue; 149524afba76SLiad Kaufman 149624afba76SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Reserving data queue #%d for sta_id %d\n", 149724afba76SLiad Kaufman queue, mvmsta->sta_id); 149824afba76SLiad Kaufman 149924afba76SLiad Kaufman return 0; 150024afba76SLiad Kaufman } 150124afba76SLiad Kaufman 15028d98ae6eSLiad Kaufman /* 15038d98ae6eSLiad Kaufman * In DQA mode, after a HW restart the queues should be allocated as before, in 15048d98ae6eSLiad Kaufman * order to avoid race conditions when there are shared queues. This function 15058d98ae6eSLiad Kaufman * does the re-mapping and queue allocation. 15068d98ae6eSLiad Kaufman * 15078d98ae6eSLiad Kaufman * Note that re-enabling aggregations isn't done in this function. 15088d98ae6eSLiad Kaufman */ 15098d98ae6eSLiad Kaufman static void iwl_mvm_realloc_queues_after_restart(struct iwl_mvm *mvm, 1510cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 15118d98ae6eSLiad Kaufman { 1512cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1513cfbc6c4cSSara Sharon unsigned int wdg = 15148d98ae6eSLiad Kaufman iwl_mvm_get_wd_timeout(mvm, mvm_sta->vif, false, false); 15158d98ae6eSLiad Kaufman int i; 15168d98ae6eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 15178d98ae6eSLiad Kaufman .sta_id = mvm_sta->sta_id, 15188d98ae6eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 15198d98ae6eSLiad Kaufman }; 15208d98ae6eSLiad Kaufman 152103c902bfSJohannes Berg /* Make sure reserved queue is still marked as such (if allocated) */ 152203c902bfSJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) 15238d98ae6eSLiad Kaufman mvm->queue_info[mvm_sta->reserved_queue].status = 15248d98ae6eSLiad Kaufman IWL_MVM_QUEUE_RESERVED; 15258d98ae6eSLiad Kaufman 15268d98ae6eSLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 15278d98ae6eSLiad Kaufman struct iwl_mvm_tid_data *tid_data = &mvm_sta->tid_data[i]; 15288d98ae6eSLiad Kaufman int txq_id = tid_data->txq_id; 15298d98ae6eSLiad Kaufman int ac; 15308d98ae6eSLiad Kaufman 15316862fceeSSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 15328d98ae6eSLiad Kaufman continue; 15338d98ae6eSLiad Kaufman 15348d98ae6eSLiad Kaufman ac = tid_to_mac80211_ac[i]; 15358d98ae6eSLiad Kaufman 1536310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1537310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 1538310181ecSSara Sharon "Re-mapping sta %d tid %d\n", 1539310181ecSSara Sharon mvm_sta->sta_id, i); 1540cfbc6c4cSSara Sharon txq_id = iwl_mvm_tvqm_enable_txq(mvm, mvm_sta->sta_id, 1541cfbc6c4cSSara Sharon i, wdg); 154291cf5dedSJohannes Berg /* 154391cf5dedSJohannes Berg * on failures, just set it to IWL_MVM_INVALID_QUEUE 154491cf5dedSJohannes Berg * to try again later, we have no other good way of 154591cf5dedSJohannes Berg * failing here 154691cf5dedSJohannes Berg */ 154791cf5dedSJohannes Berg if (txq_id < 0) 154891cf5dedSJohannes Berg txq_id = IWL_MVM_INVALID_QUEUE; 1549310181ecSSara Sharon tid_data->txq_id = txq_id; 15505d39051aSLiad Kaufman 15515d39051aSLiad Kaufman /* 15525d39051aSLiad Kaufman * Since we don't set the seq number after reset, and HW 15535d39051aSLiad Kaufman * sets it now, FW reset will cause the seq num to start 15545d39051aSLiad Kaufman * at 0 again, so driver will need to update it 15555d39051aSLiad Kaufman * internally as well, so it keeps in sync with real val 15565d39051aSLiad Kaufman */ 15575d39051aSLiad Kaufman tid_data->seq_number = 0; 1558310181ecSSara Sharon } else { 1559310181ecSSara Sharon u16 seq = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 1560310181ecSSara Sharon 15618d98ae6eSLiad Kaufman cfg.tid = i; 1562cf6c6ea3SEmmanuel Grumbach cfg.fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac); 15638d98ae6eSLiad Kaufman cfg.aggregate = (txq_id >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1564310181ecSSara Sharon txq_id == 1565310181ecSSara Sharon IWL_MVM_DQA_BSS_CLIENT_QUEUE); 15668d98ae6eSLiad Kaufman 15678d98ae6eSLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 15688d98ae6eSLiad Kaufman "Re-mapping sta %d tid %d to queue %d\n", 15698d98ae6eSLiad Kaufman mvm_sta->sta_id, i, txq_id); 15708d98ae6eSLiad Kaufman 1571cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, txq_id, seq, &cfg, wdg); 15728d98ae6eSLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_READY; 15738d98ae6eSLiad Kaufman } 157434e10860SSara Sharon } 15758d98ae6eSLiad Kaufman } 15768d98ae6eSLiad Kaufman 1577732d06e9SShaul Triebitz static int iwl_mvm_add_int_sta_common(struct iwl_mvm *mvm, 1578732d06e9SShaul Triebitz struct iwl_mvm_int_sta *sta, 1579732d06e9SShaul Triebitz const u8 *addr, 1580732d06e9SShaul Triebitz u16 mac_id, u16 color) 1581732d06e9SShaul Triebitz { 1582732d06e9SShaul Triebitz struct iwl_mvm_add_sta_cmd cmd; 1583732d06e9SShaul Triebitz int ret; 15843f497de9SLuca Coelho u32 status = ADD_STA_SUCCESS; 1585732d06e9SShaul Triebitz 1586732d06e9SShaul Triebitz lockdep_assert_held(&mvm->mutex); 1587732d06e9SShaul Triebitz 1588732d06e9SShaul Triebitz memset(&cmd, 0, sizeof(cmd)); 1589732d06e9SShaul Triebitz cmd.sta_id = sta->sta_id; 15902c2c3647SNathan Errera 1591971cbe50SJohannes Berg if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) >= 12 && 15922c2c3647SNathan Errera sta->type == IWL_STA_AUX_ACTIVITY) 15932c2c3647SNathan Errera cmd.mac_id_n_color = cpu_to_le32(mac_id); 15942c2c3647SNathan Errera else 1595732d06e9SShaul Triebitz cmd.mac_id_n_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mac_id, 1596732d06e9SShaul Triebitz color)); 15972c2c3647SNathan Errera 1598732d06e9SShaul Triebitz if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 1599732d06e9SShaul Triebitz cmd.station_type = sta->type; 1600732d06e9SShaul Triebitz 1601732d06e9SShaul Triebitz if (!iwl_mvm_has_new_tx_api(mvm)) 1602732d06e9SShaul Triebitz cmd.tfd_queue_msk = cpu_to_le32(sta->tfd_queue_msk); 1603732d06e9SShaul Triebitz cmd.tid_disable_tx = cpu_to_le16(0xffff); 1604732d06e9SShaul Triebitz 1605732d06e9SShaul Triebitz if (addr) 1606732d06e9SShaul Triebitz memcpy(cmd.addr, addr, ETH_ALEN); 1607732d06e9SShaul Triebitz 1608732d06e9SShaul Triebitz ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1609732d06e9SShaul Triebitz iwl_mvm_add_sta_cmd_size(mvm), 1610732d06e9SShaul Triebitz &cmd, &status); 1611732d06e9SShaul Triebitz if (ret) 1612732d06e9SShaul Triebitz return ret; 1613732d06e9SShaul Triebitz 1614732d06e9SShaul Triebitz switch (status & IWL_ADD_STA_STATUS_MASK) { 1615732d06e9SShaul Triebitz case ADD_STA_SUCCESS: 1616732d06e9SShaul Triebitz IWL_DEBUG_INFO(mvm, "Internal station added.\n"); 1617732d06e9SShaul Triebitz return 0; 1618732d06e9SShaul Triebitz default: 1619732d06e9SShaul Triebitz ret = -EIO; 1620732d06e9SShaul Triebitz IWL_ERR(mvm, "Add internal station failed, status=0x%x\n", 1621732d06e9SShaul Triebitz status); 1622732d06e9SShaul Triebitz break; 1623732d06e9SShaul Triebitz } 1624732d06e9SShaul Triebitz return ret; 1625732d06e9SShaul Triebitz } 1626732d06e9SShaul Triebitz 1627e705c121SKalle Valo int iwl_mvm_add_sta(struct iwl_mvm *mvm, 1628e705c121SKalle Valo struct ieee80211_vif *vif, 1629e705c121SKalle Valo struct ieee80211_sta *sta) 1630e705c121SKalle Valo { 1631e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1632e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1633a571f5f6SSara Sharon struct iwl_mvm_rxq_dup_data *dup_data; 1634e705c121SKalle Valo int i, ret, sta_id; 1635732d06e9SShaul Triebitz bool sta_update = false; 1636732d06e9SShaul Triebitz unsigned int sta_flags = 0; 1637e705c121SKalle Valo 1638e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1639e705c121SKalle Valo 1640e705c121SKalle Valo if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1641e705c121SKalle Valo sta_id = iwl_mvm_find_free_sta_id(mvm, 1642e705c121SKalle Valo ieee80211_vif_type_p2p(vif)); 1643e705c121SKalle Valo else 1644e705c121SKalle Valo sta_id = mvm_sta->sta_id; 1645e705c121SKalle Valo 16460ae98812SSara Sharon if (sta_id == IWL_MVM_INVALID_STA) 1647e705c121SKalle Valo return -ENOSPC; 1648e705c121SKalle Valo 1649e705c121SKalle Valo spin_lock_init(&mvm_sta->lock); 1650e705c121SKalle Valo 1651c8f54701SJohannes Berg /* if this is a HW restart re-alloc existing queues */ 1652c8f54701SJohannes Berg if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1653732d06e9SShaul Triebitz struct iwl_mvm_int_sta tmp_sta = { 1654732d06e9SShaul Triebitz .sta_id = sta_id, 1655732d06e9SShaul Triebitz .type = mvm_sta->sta_type, 1656732d06e9SShaul Triebitz }; 1657732d06e9SShaul Triebitz 1658732d06e9SShaul Triebitz /* 1659732d06e9SShaul Triebitz * First add an empty station since allocating 1660732d06e9SShaul Triebitz * a queue requires a valid station 1661732d06e9SShaul Triebitz */ 1662732d06e9SShaul Triebitz ret = iwl_mvm_add_int_sta_common(mvm, &tmp_sta, sta->addr, 1663732d06e9SShaul Triebitz mvmvif->id, mvmvif->color); 1664732d06e9SShaul Triebitz if (ret) 1665732d06e9SShaul Triebitz goto err; 1666732d06e9SShaul Triebitz 1667cfbc6c4cSSara Sharon iwl_mvm_realloc_queues_after_restart(mvm, sta); 1668732d06e9SShaul Triebitz sta_update = true; 1669732d06e9SShaul Triebitz sta_flags = iwl_mvm_has_new_tx_api(mvm) ? 0 : STA_MODIFY_QUEUES; 16708d98ae6eSLiad Kaufman goto update_fw; 16718d98ae6eSLiad Kaufman } 16728d98ae6eSLiad Kaufman 1673e705c121SKalle Valo mvm_sta->sta_id = sta_id; 1674e705c121SKalle Valo mvm_sta->mac_id_n_color = FW_CMD_ID_AND_COLOR(mvmvif->id, 1675e705c121SKalle Valo mvmvif->color); 1676e705c121SKalle Valo mvm_sta->vif = vif; 1677286ca8ebSLuca Coelho if (!mvm->trans->trans_cfg->gen2) 1678e705c121SKalle Valo mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_DEF; 1679a58bb468SLiad Kaufman else 1680a58bb468SLiad Kaufman mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF; 1681e705c121SKalle Valo mvm_sta->tx_protection = 0; 1682e705c121SKalle Valo mvm_sta->tt_tx_protection = false; 1683ced19f26SSara Sharon mvm_sta->sta_type = sta->tdls ? IWL_STA_TDLS_LINK : IWL_STA_LINK; 1684e705c121SKalle Valo 1685e705c121SKalle Valo /* HW restart, don't assume the memory has been zeroed */ 1686e705c121SKalle Valo mvm_sta->tid_disable_agg = 0xffff; /* No aggs at first */ 1687e705c121SKalle Valo mvm_sta->tfd_queue_msk = 0; 1688e705c121SKalle Valo 1689e705c121SKalle Valo /* for HW restart - reset everything but the sequence number */ 169024afba76SLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 1691e705c121SKalle Valo u16 seq = mvm_sta->tid_data[i].seq_number; 1692e705c121SKalle Valo memset(&mvm_sta->tid_data[i], 0, sizeof(mvm_sta->tid_data[i])); 1693e705c121SKalle Valo mvm_sta->tid_data[i].seq_number = seq; 169424afba76SLiad Kaufman 169524afba76SLiad Kaufman /* 169624afba76SLiad Kaufman * Mark all queues for this STA as unallocated and defer TX 169724afba76SLiad Kaufman * frames until the queue is allocated 169824afba76SLiad Kaufman */ 16996862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 1700e705c121SKalle Valo } 1701cfbc6c4cSSara Sharon 1702cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1703cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1704cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1705cfbc6c4cSSara Sharon 1706cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 1707cfbc6c4cSSara Sharon INIT_LIST_HEAD(&mvmtxq->list); 1708fba8248eSSara Sharon atomic_set(&mvmtxq->tx_request, 0); 1709cfbc6c4cSSara Sharon } 1710cfbc6c4cSSara Sharon 1711e705c121SKalle Valo mvm_sta->agg_tids = 0; 1712e705c121SKalle Valo 1713a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && 1714a571f5f6SSara Sharon !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 171592c4dca6SJohannes Berg int q; 171692c4dca6SJohannes Berg 1717a571f5f6SSara Sharon dup_data = kcalloc(mvm->trans->num_rx_queues, 171892c4dca6SJohannes Berg sizeof(*dup_data), GFP_KERNEL); 1719a571f5f6SSara Sharon if (!dup_data) 1720a571f5f6SSara Sharon return -ENOMEM; 172192c4dca6SJohannes Berg /* 172292c4dca6SJohannes Berg * Initialize all the last_seq values to 0xffff which can never 172392c4dca6SJohannes Berg * compare equal to the frame's seq_ctrl in the check in 172492c4dca6SJohannes Berg * iwl_mvm_is_dup() since the lower 4 bits are the fragment 172592c4dca6SJohannes Berg * number and fragmented packets don't reach that function. 172692c4dca6SJohannes Berg * 172792c4dca6SJohannes Berg * This thus allows receiving a packet with seqno 0 and the 172892c4dca6SJohannes Berg * retry bit set as the very first packet on a new TID. 172992c4dca6SJohannes Berg */ 173092c4dca6SJohannes Berg for (q = 0; q < mvm->trans->num_rx_queues; q++) 173192c4dca6SJohannes Berg memset(dup_data[q].last_seq, 0xff, 173292c4dca6SJohannes Berg sizeof(dup_data[q].last_seq)); 1733a571f5f6SSara Sharon mvm_sta->dup_data = dup_data; 1734a571f5f6SSara Sharon } 1735a571f5f6SSara Sharon 1736c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 1737d5216a28SLiad Kaufman ret = iwl_mvm_reserve_sta_stream(mvm, sta, 1738d5216a28SLiad Kaufman ieee80211_vif_type_p2p(vif)); 173924afba76SLiad Kaufman if (ret) 174024afba76SLiad Kaufman goto err; 174124afba76SLiad Kaufman } 174224afba76SLiad Kaufman 17439f66a397SGregory Greenman /* 17449f66a397SGregory Greenman * if rs is registered with mac80211, then "add station" will be handled 17459f66a397SGregory Greenman * via the corresponding ops, otherwise need to notify rate scaling here 17469f66a397SGregory Greenman */ 17474243edb4SEmmanuel Grumbach if (iwl_mvm_has_tlc_offload(mvm)) 17489f66a397SGregory Greenman iwl_mvm_rs_add_sta(mvm, mvm_sta); 17490f8084cdSMordechay Goodstein else 1750f5d88fa3SGregory Greenman spin_lock_init(&mvm_sta->lq_sta.rs_drv.pers.lock); 17519f66a397SGregory Greenman 17520dde2440SAvraham Stern iwl_mvm_toggle_tx_ant(mvm, &mvm_sta->tx_ant); 17530dde2440SAvraham Stern 17548d98ae6eSLiad Kaufman update_fw: 1755732d06e9SShaul Triebitz ret = iwl_mvm_sta_send_to_fw(mvm, sta, sta_update, sta_flags); 1756e705c121SKalle Valo if (ret) 1757e705c121SKalle Valo goto err; 1758e705c121SKalle Valo 1759e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) { 1760e705c121SKalle Valo if (!sta->tdls) { 17610ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id != IWL_MVM_INVALID_STA); 1762e705c121SKalle Valo mvmvif->ap_sta_id = sta_id; 1763e705c121SKalle Valo } else { 17640ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id == IWL_MVM_INVALID_STA); 1765e705c121SKalle Valo } 1766e705c121SKalle Valo } 1767e705c121SKalle Valo 1768e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], sta); 1769e705c121SKalle Valo 1770e705c121SKalle Valo return 0; 1771e705c121SKalle Valo 1772e705c121SKalle Valo err: 1773e705c121SKalle Valo return ret; 1774e705c121SKalle Valo } 1775e705c121SKalle Valo 1776e705c121SKalle Valo int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, 1777e705c121SKalle Valo bool drain) 1778e705c121SKalle Valo { 1779e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 1780e705c121SKalle Valo int ret; 1781e705c121SKalle Valo u32 status; 1782e705c121SKalle Valo 1783e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1784e705c121SKalle Valo 1785e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 1786e705c121SKalle Valo cmd.sta_id = mvmsta->sta_id; 1787e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 1788e705c121SKalle Valo cmd.station_flags = drain ? cpu_to_le32(STA_FLG_DRAIN_FLOW) : 0; 1789e705c121SKalle Valo cmd.station_flags_msk = cpu_to_le32(STA_FLG_DRAIN_FLOW); 1790e705c121SKalle Valo 1791e705c121SKalle Valo status = ADD_STA_SUCCESS; 1792854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1793854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 1794e705c121SKalle Valo &cmd, &status); 1795e705c121SKalle Valo if (ret) 1796e705c121SKalle Valo return ret; 1797e705c121SKalle Valo 1798837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 1799e705c121SKalle Valo case ADD_STA_SUCCESS: 1800e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "Frames for staid %d will drained in fw\n", 1801e705c121SKalle Valo mvmsta->sta_id); 1802e705c121SKalle Valo break; 1803e705c121SKalle Valo default: 1804e705c121SKalle Valo ret = -EIO; 1805e705c121SKalle Valo IWL_ERR(mvm, "Couldn't drain frames for staid %d\n", 1806e705c121SKalle Valo mvmsta->sta_id); 1807e705c121SKalle Valo break; 1808e705c121SKalle Valo } 1809e705c121SKalle Valo 1810e705c121SKalle Valo return ret; 1811e705c121SKalle Valo } 1812e705c121SKalle Valo 1813e705c121SKalle Valo /* 1814e705c121SKalle Valo * Remove a station from the FW table. Before sending the command to remove 1815e705c121SKalle Valo * the station validate that the station is indeed known to the driver (sanity 1816e705c121SKalle Valo * only). 1817e705c121SKalle Valo */ 1818e705c121SKalle Valo static int iwl_mvm_rm_sta_common(struct iwl_mvm *mvm, u8 sta_id) 1819e705c121SKalle Valo { 1820e705c121SKalle Valo struct ieee80211_sta *sta; 1821e705c121SKalle Valo struct iwl_mvm_rm_sta_cmd rm_sta_cmd = { 1822e705c121SKalle Valo .sta_id = sta_id, 1823e705c121SKalle Valo }; 1824e705c121SKalle Valo int ret; 1825e705c121SKalle Valo 1826e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 1827e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1828e705c121SKalle Valo 1829e705c121SKalle Valo /* Note: internal stations are marked as error values */ 1830e705c121SKalle Valo if (!sta) { 1831e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 1832e705c121SKalle Valo return -EINVAL; 1833e705c121SKalle Valo } 1834e705c121SKalle Valo 1835e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, REMOVE_STA, 0, 1836e705c121SKalle Valo sizeof(rm_sta_cmd), &rm_sta_cmd); 1837e705c121SKalle Valo if (ret) { 1838e705c121SKalle Valo IWL_ERR(mvm, "Failed to remove station. Id=%d\n", sta_id); 1839e705c121SKalle Valo return ret; 1840e705c121SKalle Valo } 1841e705c121SKalle Valo 1842e705c121SKalle Valo return 0; 1843e705c121SKalle Valo } 1844e705c121SKalle Valo 184524afba76SLiad Kaufman static void iwl_mvm_disable_sta_queues(struct iwl_mvm *mvm, 184624afba76SLiad Kaufman struct ieee80211_vif *vif, 1847cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 184824afba76SLiad Kaufman { 1849cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 185024afba76SLiad Kaufman int i; 185124afba76SLiad Kaufman 185224afba76SLiad Kaufman lockdep_assert_held(&mvm->mutex); 185324afba76SLiad Kaufman 185424afba76SLiad Kaufman for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 18556862fceeSSara Sharon if (mvm_sta->tid_data[i].txq_id == IWL_MVM_INVALID_QUEUE) 185624afba76SLiad Kaufman continue; 185724afba76SLiad Kaufman 1858c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, sta, mvm_sta->sta_id, 1859c5a976cfSJohannes Berg &mvm_sta->tid_data[i].txq_id, i); 18606862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 186124afba76SLiad Kaufman } 1862cfbc6c4cSSara Sharon 1863cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1864cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1865cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1866cfbc6c4cSSara Sharon 1867cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 186814a3aacfSJose Ignacio Tornos Martinez list_del_init(&mvmtxq->list); 1869cfbc6c4cSSara Sharon } 187024afba76SLiad Kaufman } 187124afba76SLiad Kaufman 1872d6d517b7SSara Sharon int iwl_mvm_wait_sta_queues_empty(struct iwl_mvm *mvm, 1873d6d517b7SSara Sharon struct iwl_mvm_sta *mvm_sta) 1874d6d517b7SSara Sharon { 1875bec9522aSSharon Dvir int i; 1876d6d517b7SSara Sharon 1877d6d517b7SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 1878d6d517b7SSara Sharon u16 txq_id; 1879bec9522aSSharon Dvir int ret; 1880d6d517b7SSara Sharon 1881d6d517b7SSara Sharon spin_lock_bh(&mvm_sta->lock); 1882d6d517b7SSara Sharon txq_id = mvm_sta->tid_data[i].txq_id; 1883d6d517b7SSara Sharon spin_unlock_bh(&mvm_sta->lock); 1884d6d517b7SSara Sharon 1885d6d517b7SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 1886d6d517b7SSara Sharon continue; 1887d6d517b7SSara Sharon 1888d6d517b7SSara Sharon ret = iwl_trans_wait_txq_empty(mvm->trans, txq_id); 1889d6d517b7SSara Sharon if (ret) 1890bec9522aSSharon Dvir return ret; 1891d6d517b7SSara Sharon } 1892d6d517b7SSara Sharon 1893bec9522aSSharon Dvir return 0; 1894d6d517b7SSara Sharon } 1895d6d517b7SSara Sharon 1896e705c121SKalle Valo int iwl_mvm_rm_sta(struct iwl_mvm *mvm, 1897e705c121SKalle Valo struct ieee80211_vif *vif, 1898e705c121SKalle Valo struct ieee80211_sta *sta) 1899e705c121SKalle Valo { 1900e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1901e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 190294c3e614SSara Sharon u8 sta_id = mvm_sta->sta_id; 1903e705c121SKalle Valo int ret; 1904e705c121SKalle Valo 1905e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1906e705c121SKalle Valo 1907a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm)) 1908a571f5f6SSara Sharon kfree(mvm_sta->dup_data); 1909a571f5f6SSara Sharon 1910e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, true); 1911e705c121SKalle Valo if (ret) 1912e705c121SKalle Valo return ret; 1913c8f54701SJohannes Berg 1914e705c121SKalle Valo /* flush its queues here since we are freeing mvm_sta */ 1915f9084775SNathan Errera ret = iwl_mvm_flush_sta(mvm, mvm_sta, false); 1916e705c121SKalle Valo if (ret) 1917e705c121SKalle Valo return ret; 1918d6d517b7SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1919d6d517b7SSara Sharon ret = iwl_mvm_wait_sta_queues_empty(mvm, mvm_sta); 1920d6d517b7SSara Sharon } else { 1921d6d517b7SSara Sharon u32 q_mask = mvm_sta->tfd_queue_msk; 1922d6d517b7SSara Sharon 1923a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 1924d6d517b7SSara Sharon q_mask); 1925d6d517b7SSara Sharon } 1926e705c121SKalle Valo if (ret) 1927e705c121SKalle Valo return ret; 1928c8f54701SJohannes Berg 1929e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, false); 1930e705c121SKalle Valo 1931cfbc6c4cSSara Sharon iwl_mvm_disable_sta_queues(mvm, vif, sta); 193256214749SLiad Kaufman 193356214749SLiad Kaufman /* If there is a TXQ still marked as reserved - free it */ 1934c8f54701SJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) { 1935a0315deaSLiad Kaufman u8 reserved_txq = mvm_sta->reserved_queue; 1936a0315deaSLiad Kaufman enum iwl_mvm_queue_status *status; 1937a0315deaSLiad Kaufman 1938a0315deaSLiad Kaufman /* 1939a0315deaSLiad Kaufman * If no traffic has gone through the reserved TXQ - it 1940a0315deaSLiad Kaufman * is still marked as IWL_MVM_QUEUE_RESERVED, and 1941a0315deaSLiad Kaufman * should be manually marked as free again 1942a0315deaSLiad Kaufman */ 1943a0315deaSLiad Kaufman status = &mvm->queue_info[reserved_txq].status; 1944a0315deaSLiad Kaufman if (WARN((*status != IWL_MVM_QUEUE_RESERVED) && 1945a0315deaSLiad Kaufman (*status != IWL_MVM_QUEUE_FREE), 1946a0315deaSLiad Kaufman "sta_id %d reserved txq %d status %d", 1947f3f240f9SJohannes Berg sta_id, reserved_txq, *status)) 1948a0315deaSLiad Kaufman return -EINVAL; 1949a0315deaSLiad Kaufman 1950a0315deaSLiad Kaufman *status = IWL_MVM_QUEUE_FREE; 1951a0315deaSLiad Kaufman } 1952a0315deaSLiad Kaufman 1953e3118ad7SLiad Kaufman if (vif->type == NL80211_IFTYPE_STATION && 195494c3e614SSara Sharon mvmvif->ap_sta_id == sta_id) { 1955e3118ad7SLiad Kaufman /* if associated - we can't remove the AP STA now */ 1956f276e20bSJohannes Berg if (vif->cfg.assoc) 1957e705c121SKalle Valo return ret; 1958e705c121SKalle Valo 19595c75a208SJohannes Berg /* first remove remaining keys */ 19605c75a208SJohannes Berg iwl_mvm_sec_key_remove_ap(mvm, vif); 19615c75a208SJohannes Berg 1962e705c121SKalle Valo /* unassoc - go ahead - remove the AP STA now */ 19630ae98812SSara Sharon mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1964e705c121SKalle Valo } 1965e705c121SKalle Valo 1966e705c121SKalle Valo /* 1967e705c121SKalle Valo * This shouldn't happen - the TDLS channel switch should be canceled 1968e705c121SKalle Valo * before the STA is removed. 1969e705c121SKalle Valo */ 197094c3e614SSara Sharon if (WARN_ON_ONCE(mvm->tdls_cs.peer.sta_id == sta_id)) { 19710ae98812SSara Sharon mvm->tdls_cs.peer.sta_id = IWL_MVM_INVALID_STA; 1972e705c121SKalle Valo cancel_delayed_work(&mvm->tdls_cs.dwork); 1973e705c121SKalle Valo } 1974e705c121SKalle Valo 1975e705c121SKalle Valo /* 1976e705c121SKalle Valo * Make sure that the tx response code sees the station as -EBUSY and 1977e705c121SKalle Valo * calls the drain worker. 1978e705c121SKalle Valo */ 1979e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 1980e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 1981e705c121SKalle Valo 1982e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvm_sta->sta_id); 1983e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[mvm_sta->sta_id], NULL); 1984e705c121SKalle Valo 1985e705c121SKalle Valo return ret; 1986e705c121SKalle Valo } 1987e705c121SKalle Valo 1988e705c121SKalle Valo int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm, 1989e705c121SKalle Valo struct ieee80211_vif *vif, 1990e705c121SKalle Valo u8 sta_id) 1991e705c121SKalle Valo { 1992e705c121SKalle Valo int ret = iwl_mvm_rm_sta_common(mvm, sta_id); 1993e705c121SKalle Valo 1994e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1995e705c121SKalle Valo 1996e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], NULL); 1997e705c121SKalle Valo return ret; 1998e705c121SKalle Valo } 1999e705c121SKalle Valo 20000e39eb03SChaya Rachel Ivgi int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, 2001e705c121SKalle Valo struct iwl_mvm_int_sta *sta, 2002ced19f26SSara Sharon u32 qmask, enum nl80211_iftype iftype, 2003ced19f26SSara Sharon enum iwl_sta_type type) 2004e705c121SKalle Valo { 2005df65c8d1SAvraham Stern if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 2006df65c8d1SAvraham Stern sta->sta_id == IWL_MVM_INVALID_STA) { 2007e705c121SKalle Valo sta->sta_id = iwl_mvm_find_free_sta_id(mvm, iftype); 20080ae98812SSara Sharon if (WARN_ON_ONCE(sta->sta_id == IWL_MVM_INVALID_STA)) 2009e705c121SKalle Valo return -ENOSPC; 2010e705c121SKalle Valo } 2011e705c121SKalle Valo 2012e705c121SKalle Valo sta->tfd_queue_msk = qmask; 2013ced19f26SSara Sharon sta->type = type; 2014e705c121SKalle Valo 2015e705c121SKalle Valo /* put a non-NULL value so iterating over the stations won't stop */ 2016e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta->sta_id], ERR_PTR(-EINVAL)); 2017e705c121SKalle Valo return 0; 2018e705c121SKalle Valo } 2019e705c121SKalle Valo 202026d6c16bSSara Sharon void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta) 2021e705c121SKalle Valo { 2022e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta->sta_id], NULL); 2023e705c121SKalle Valo memset(sta, 0, sizeof(struct iwl_mvm_int_sta)); 20240ae98812SSara Sharon sta->sta_id = IWL_MVM_INVALID_STA; 2025e705c121SKalle Valo } 2026e705c121SKalle Valo 202791cf5dedSJohannes Berg static void iwl_mvm_enable_aux_snif_queue(struct iwl_mvm *mvm, u16 queue, 2028b13f43a4SEmmanuel Grumbach u8 sta_id, u8 fifo) 2029e705c121SKalle Valo { 20309617040eSEmmanuel Grumbach unsigned int wdg_timeout = 20319617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout; 203228d0793eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 2033b13f43a4SEmmanuel Grumbach .fifo = fifo, 2034b13f43a4SEmmanuel Grumbach .sta_id = sta_id, 203528d0793eSLiad Kaufman .tid = IWL_MAX_TID_COUNT, 203628d0793eSLiad Kaufman .aggregate = false, 203728d0793eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 203828d0793eSLiad Kaufman }; 203928d0793eSLiad Kaufman 204091cf5dedSJohannes Berg WARN_ON(iwl_mvm_has_new_tx_api(mvm)); 204191cf5dedSJohannes Berg 204291cf5dedSJohannes Berg iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 204328d0793eSLiad Kaufman } 204491cf5dedSJohannes Berg 204591cf5dedSJohannes Berg static int iwl_mvm_enable_aux_snif_queue_tvqm(struct iwl_mvm *mvm, u8 sta_id) 204691cf5dedSJohannes Berg { 20479617040eSEmmanuel Grumbach unsigned int wdg_timeout = 20489617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout; 204991cf5dedSJohannes Berg 205091cf5dedSJohannes Berg WARN_ON(!iwl_mvm_has_new_tx_api(mvm)); 205191cf5dedSJohannes Berg 205291cf5dedSJohannes Berg return iwl_mvm_tvqm_enable_txq(mvm, sta_id, IWL_MAX_TID_COUNT, 205391cf5dedSJohannes Berg wdg_timeout); 205491cf5dedSJohannes Berg } 205591cf5dedSJohannes Berg 205691cf5dedSJohannes Berg static int iwl_mvm_add_int_sta_with_queue(struct iwl_mvm *mvm, int macidx, 2057be82ecd3SAvraham Stern int maccolor, u8 *addr, 205891cf5dedSJohannes Berg struct iwl_mvm_int_sta *sta, 205991cf5dedSJohannes Berg u16 *queue, int fifo) 206091cf5dedSJohannes Berg { 206191cf5dedSJohannes Berg int ret; 206291cf5dedSJohannes Berg 206391cf5dedSJohannes Berg /* Map queue to fifo - needs to happen before adding station */ 206491cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) 206591cf5dedSJohannes Berg iwl_mvm_enable_aux_snif_queue(mvm, *queue, sta->sta_id, fifo); 206691cf5dedSJohannes Berg 2067be82ecd3SAvraham Stern ret = iwl_mvm_add_int_sta_common(mvm, sta, addr, macidx, maccolor); 206891cf5dedSJohannes Berg if (ret) { 206991cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) 2070c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, sta->sta_id, queue, 207164ff7eb0SJohannes Berg IWL_MAX_TID_COUNT); 207291cf5dedSJohannes Berg return ret; 207391cf5dedSJohannes Berg } 207491cf5dedSJohannes Berg 207591cf5dedSJohannes Berg /* 207691cf5dedSJohannes Berg * For 22000 firmware and on we cannot add queue to a station unknown 207791cf5dedSJohannes Berg * to firmware so enable queue here - after the station was added 207891cf5dedSJohannes Berg */ 207991cf5dedSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) { 208091cf5dedSJohannes Berg int txq; 208191cf5dedSJohannes Berg 208291cf5dedSJohannes Berg txq = iwl_mvm_enable_aux_snif_queue_tvqm(mvm, sta->sta_id); 208391cf5dedSJohannes Berg if (txq < 0) { 208491cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, sta->sta_id); 208591cf5dedSJohannes Berg return txq; 208691cf5dedSJohannes Berg } 208791cf5dedSJohannes Berg 208891cf5dedSJohannes Berg *queue = txq; 208991cf5dedSJohannes Berg } 209091cf5dedSJohannes Berg 209191cf5dedSJohannes Berg return 0; 2092c5a719eeSSara Sharon } 2093c5a719eeSSara Sharon 20942c2c3647SNathan Errera int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm, u32 lmac_id) 2095c5a719eeSSara Sharon { 2096c5a719eeSSara Sharon int ret; 2097c5a719eeSSara Sharon 2098c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2099c5a719eeSSara Sharon 2100c5a719eeSSara Sharon /* Allocate aux station and assign to it the aux queue */ 2101c5a719eeSSara Sharon ret = iwl_mvm_allocate_int_sta(mvm, &mvm->aux_sta, BIT(mvm->aux_queue), 2102ced19f26SSara Sharon NL80211_IFTYPE_UNSPECIFIED, 2103ced19f26SSara Sharon IWL_STA_AUX_ACTIVITY); 2104c5a719eeSSara Sharon if (ret) 2105c5a719eeSSara Sharon return ret; 2106c5a719eeSSara Sharon 21072c2c3647SNathan Errera /* 21082c2c3647SNathan Errera * In CDB NICs we need to specify which lmac to use for aux activity 21092c2c3647SNathan Errera * using the mac_id argument place to send lmac_id to the function 21102c2c3647SNathan Errera */ 21112c2c3647SNathan Errera ret = iwl_mvm_add_int_sta_with_queue(mvm, lmac_id, 0, NULL, 211291cf5dedSJohannes Berg &mvm->aux_sta, &mvm->aux_queue, 2113b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_MCAST); 2114c5a719eeSSara Sharon if (ret) { 2115e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2116e705c121SKalle Valo return ret; 2117e705c121SKalle Valo } 2118e705c121SKalle Valo 2119c5a719eeSSara Sharon return 0; 2120c5a719eeSSara Sharon } 2121c5a719eeSSara Sharon 21220e39eb03SChaya Rachel Ivgi int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 21230e39eb03SChaya Rachel Ivgi { 21240e39eb03SChaya Rachel Ivgi struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 21250e39eb03SChaya Rachel Ivgi 21260e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 2127b13f43a4SEmmanuel Grumbach 212891cf5dedSJohannes Berg return iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id, mvmvif->color, 2129be82ecd3SAvraham Stern NULL, &mvm->snif_sta, 2130be82ecd3SAvraham Stern &mvm->snif_queue, 2131b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_BE); 21320e39eb03SChaya Rachel Ivgi } 21330e39eb03SChaya Rachel Ivgi 21340e39eb03SChaya Rachel Ivgi int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 21350e39eb03SChaya Rachel Ivgi { 21360e39eb03SChaya Rachel Ivgi int ret; 21370e39eb03SChaya Rachel Ivgi 21380e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 21390e39eb03SChaya Rachel Ivgi 2140e223e42aSGregory Greenman if (WARN_ON_ONCE(mvm->snif_sta.sta_id == IWL_MVM_INVALID_STA)) 2141e223e42aSGregory Greenman return -EINVAL; 2142e223e42aSGregory Greenman 2143c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, mvm->snif_sta.sta_id, 2144c5a976cfSJohannes Berg &mvm->snif_queue, IWL_MAX_TID_COUNT); 21450e39eb03SChaya Rachel Ivgi ret = iwl_mvm_rm_sta_common(mvm, mvm->snif_sta.sta_id); 21460e39eb03SChaya Rachel Ivgi if (ret) 21470e39eb03SChaya Rachel Ivgi IWL_WARN(mvm, "Failed sending remove station\n"); 21480e39eb03SChaya Rachel Ivgi 21490e39eb03SChaya Rachel Ivgi return ret; 21500e39eb03SChaya Rachel Ivgi } 21510e39eb03SChaya Rachel Ivgi 2152f327236dSSharon int iwl_mvm_rm_aux_sta(struct iwl_mvm *mvm) 2153f327236dSSharon { 2154f327236dSSharon int ret; 2155f327236dSSharon 2156f327236dSSharon lockdep_assert_held(&mvm->mutex); 2157f327236dSSharon 2158e223e42aSGregory Greenman if (WARN_ON_ONCE(mvm->aux_sta.sta_id == IWL_MVM_INVALID_STA)) 2159e223e42aSGregory Greenman return -EINVAL; 2160e223e42aSGregory Greenman 2161c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, mvm->aux_sta.sta_id, 2162c5a976cfSJohannes Berg &mvm->aux_queue, IWL_MAX_TID_COUNT); 2163f327236dSSharon ret = iwl_mvm_rm_sta_common(mvm, mvm->aux_sta.sta_id); 2164f327236dSSharon if (ret) 2165f327236dSSharon IWL_WARN(mvm, "Failed sending remove station\n"); 2166f327236dSSharon iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2167f327236dSSharon 2168f327236dSSharon return ret; 2169f327236dSSharon } 2170f327236dSSharon 21710e39eb03SChaya Rachel Ivgi void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm) 21720e39eb03SChaya Rachel Ivgi { 21730e39eb03SChaya Rachel Ivgi iwl_mvm_dealloc_int_sta(mvm, &mvm->snif_sta); 21740e39eb03SChaya Rachel Ivgi } 21750e39eb03SChaya Rachel Ivgi 2176e705c121SKalle Valo /* 2177e705c121SKalle Valo * Send the add station command for the vif's broadcast station. 2178e705c121SKalle Valo * Assumes that the station was already allocated. 2179e705c121SKalle Valo * 2180e705c121SKalle Valo * @mvm: the mvm component 2181e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2182e705c121SKalle Valo * @bsta: the broadcast station to add. 2183e705c121SKalle Valo */ 2184e705c121SKalle Valo int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2185e705c121SKalle Valo { 2186e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2187e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 2188e705c121SKalle Valo static const u8 _baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; 2189e705c121SKalle Valo const u8 *baddr = _baddr; 21907daa7624SJohannes Berg int queue; 2191df88c08dSLiad Kaufman int ret; 2192c5a719eeSSara Sharon unsigned int wdg_timeout = 2193c5a719eeSSara Sharon iwl_mvm_get_wd_timeout(mvm, vif, false, false); 2194de24f638SLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 2195de24f638SLiad Kaufman .fifo = IWL_MVM_TX_FIFO_VO, 2196de24f638SLiad Kaufman .sta_id = mvmvif->bcast_sta.sta_id, 2197de24f638SLiad Kaufman .tid = IWL_MAX_TID_COUNT, 2198de24f638SLiad Kaufman .aggregate = false, 2199de24f638SLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 2200de24f638SLiad Kaufman }; 2201de24f638SLiad Kaufman 2202c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2203c5a719eeSSara Sharon 2204c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 22054d339989SLiad Kaufman if (vif->type == NL80211_IFTYPE_AP || 2206f8510d67SNathan Chancellor vif->type == NL80211_IFTYPE_ADHOC) { 220749f71713SSara Sharon queue = mvm->probe_queue; 2208f8510d67SNathan Chancellor } else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 220949f71713SSara Sharon queue = mvm->p2p_dev_queue; 2210f8510d67SNathan Chancellor } else { 2211f8510d67SNathan Chancellor WARN(1, "Missing required TXQ for adding bcast STA\n"); 2212de24f638SLiad Kaufman return -EINVAL; 2213f8510d67SNathan Chancellor } 2214de24f638SLiad Kaufman 2215df88c08dSLiad Kaufman bsta->tfd_queue_msk |= BIT(queue); 2216c5a719eeSSara Sharon 2217cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 2218de24f638SLiad Kaufman } 2219de24f638SLiad Kaufman 2220e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_ADHOC) 2221e705c121SKalle Valo baddr = vif->bss_conf.bssid; 2222e705c121SKalle Valo 22230ae98812SSara Sharon if (WARN_ON_ONCE(bsta->sta_id == IWL_MVM_INVALID_STA)) 2224e705c121SKalle Valo return -ENOSPC; 2225e705c121SKalle Valo 2226df88c08dSLiad Kaufman ret = iwl_mvm_add_int_sta_common(mvm, bsta, baddr, 2227e705c121SKalle Valo mvmvif->id, mvmvif->color); 2228df88c08dSLiad Kaufman if (ret) 2229df88c08dSLiad Kaufman return ret; 2230df88c08dSLiad Kaufman 2231df88c08dSLiad Kaufman /* 22322f7a3863SLuca Coelho * For 22000 firmware and on we cannot add queue to a station unknown 2233c5a719eeSSara Sharon * to firmware so enable queue here - after the station was added 2234df88c08dSLiad Kaufman */ 2235310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 2236cfbc6c4cSSara Sharon queue = iwl_mvm_tvqm_enable_txq(mvm, bsta->sta_id, 2237310181ecSSara Sharon IWL_MAX_TID_COUNT, 2238c5a719eeSSara Sharon wdg_timeout); 223991cf5dedSJohannes Berg if (queue < 0) { 224091cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, bsta->sta_id); 224191cf5dedSJohannes Berg return queue; 224291cf5dedSJohannes Berg } 22437daa7624SJohannes Berg 22447b758a11SLuca Coelho if (vif->type == NL80211_IFTYPE_AP || 22457b758a11SLuca Coelho vif->type == NL80211_IFTYPE_ADHOC) 2246310181ecSSara Sharon mvm->probe_queue = queue; 2247310181ecSSara Sharon else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 2248310181ecSSara Sharon mvm->p2p_dev_queue = queue; 2249310181ecSSara Sharon } 2250df88c08dSLiad Kaufman 2251df88c08dSLiad Kaufman return 0; 2252df88c08dSLiad Kaufman } 2253df88c08dSLiad Kaufman 2254df88c08dSLiad Kaufman static void iwl_mvm_free_bcast_sta_queues(struct iwl_mvm *mvm, 2255df88c08dSLiad Kaufman struct ieee80211_vif *vif) 2256df88c08dSLiad Kaufman { 2257df88c08dSLiad Kaufman struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2258c6ce1c74SJohannes Berg u16 *queueptr, queue; 2259df88c08dSLiad Kaufman 2260df88c08dSLiad Kaufman lockdep_assert_held(&mvm->mutex); 2261df88c08dSLiad Kaufman 2262f9084775SNathan Errera iwl_mvm_flush_sta(mvm, &mvmvif->bcast_sta, true); 2263d49394a1SSara Sharon 2264d167e81aSMordechai Goodstein switch (vif->type) { 2265d167e81aSMordechai Goodstein case NL80211_IFTYPE_AP: 2266d167e81aSMordechai Goodstein case NL80211_IFTYPE_ADHOC: 2267c6ce1c74SJohannes Berg queueptr = &mvm->probe_queue; 2268d167e81aSMordechai Goodstein break; 2269d167e81aSMordechai Goodstein case NL80211_IFTYPE_P2P_DEVICE: 2270c6ce1c74SJohannes Berg queueptr = &mvm->p2p_dev_queue; 2271d167e81aSMordechai Goodstein break; 2272d167e81aSMordechai Goodstein default: 2273d167e81aSMordechai Goodstein WARN(1, "Can't free bcast queue on vif type %d\n", 2274d167e81aSMordechai Goodstein vif->type); 2275d167e81aSMordechai Goodstein return; 2276df88c08dSLiad Kaufman } 2277df88c08dSLiad Kaufman 2278c6ce1c74SJohannes Berg queue = *queueptr; 2279c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, mvmvif->bcast_sta.sta_id, 2280c5a976cfSJohannes Berg queueptr, IWL_MAX_TID_COUNT); 2281d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) 2282d167e81aSMordechai Goodstein return; 2283d167e81aSMordechai Goodstein 2284d167e81aSMordechai Goodstein WARN_ON(!(mvmvif->bcast_sta.tfd_queue_msk & BIT(queue))); 2285d167e81aSMordechai Goodstein mvmvif->bcast_sta.tfd_queue_msk &= ~BIT(queue); 2286e705c121SKalle Valo } 2287e705c121SKalle Valo 2288e705c121SKalle Valo /* Send the FW a request to remove the station from it's internal data 2289e705c121SKalle Valo * structures, but DO NOT remove the entry from the local data structures. */ 2290e705c121SKalle Valo int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2291e705c121SKalle Valo { 2292e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2293e705c121SKalle Valo int ret; 2294e705c121SKalle Valo 2295e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2296e705c121SKalle Valo 2297df88c08dSLiad Kaufman iwl_mvm_free_bcast_sta_queues(mvm, vif); 2298df88c08dSLiad Kaufman 2299e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvmvif->bcast_sta.sta_id); 2300e705c121SKalle Valo if (ret) 2301e705c121SKalle Valo IWL_WARN(mvm, "Failed sending remove station\n"); 2302e705c121SKalle Valo return ret; 2303e705c121SKalle Valo } 2304e705c121SKalle Valo 2305e705c121SKalle Valo int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2306e705c121SKalle Valo { 2307e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2308e705c121SKalle Valo 2309e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2310e705c121SKalle Valo 2311c8f54701SJohannes Berg return iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, 0, 2312ced19f26SSara Sharon ieee80211_vif_type_p2p(vif), 2313ced19f26SSara Sharon IWL_STA_GENERAL_PURPOSE); 2314e705c121SKalle Valo } 2315e705c121SKalle Valo 2316e705c121SKalle Valo /* Allocate a new station entry for the broadcast station to the given vif, 2317e705c121SKalle Valo * and send it to the FW. 2318e705c121SKalle Valo * Note that each P2P mac should have its own broadcast station. 2319e705c121SKalle Valo * 2320e705c121SKalle Valo * @mvm: the mvm component 2321e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2322e705c121SKalle Valo * @bsta: the broadcast station to add. */ 2323d197358bSLuca Coelho int iwl_mvm_add_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2324e705c121SKalle Valo { 2325e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2326e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 2327e705c121SKalle Valo int ret; 2328e705c121SKalle Valo 2329e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2330e705c121SKalle Valo 2331e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 2332e705c121SKalle Valo if (ret) 2333e705c121SKalle Valo return ret; 2334e705c121SKalle Valo 2335e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2336e705c121SKalle Valo 2337e705c121SKalle Valo if (ret) 2338e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, bsta); 2339e705c121SKalle Valo 2340e705c121SKalle Valo return ret; 2341e705c121SKalle Valo } 2342e705c121SKalle Valo 2343e705c121SKalle Valo void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2344e705c121SKalle Valo { 2345e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2346e705c121SKalle Valo 2347e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta); 2348e705c121SKalle Valo } 2349e705c121SKalle Valo 2350e705c121SKalle Valo /* 2351e705c121SKalle Valo * Send the FW a request to remove the station from it's internal data 2352e705c121SKalle Valo * structures, and in addition remove it from the local data structure. 2353e705c121SKalle Valo */ 2354d197358bSLuca Coelho int iwl_mvm_rm_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2355e705c121SKalle Valo { 2356e705c121SKalle Valo int ret; 2357e705c121SKalle Valo 2358e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2359e705c121SKalle Valo 2360e705c121SKalle Valo ret = iwl_mvm_send_rm_bcast_sta(mvm, vif); 2361e705c121SKalle Valo 2362e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif); 2363e705c121SKalle Valo 2364e705c121SKalle Valo return ret; 2365e705c121SKalle Valo } 2366e705c121SKalle Valo 236726d6c16bSSara Sharon /* 236826d6c16bSSara Sharon * Allocate a new station entry for the multicast station to the given vif, 236926d6c16bSSara Sharon * and send it to the FW. 237026d6c16bSSara Sharon * Note that each AP/GO mac should have its own multicast station. 237126d6c16bSSara Sharon * 237226d6c16bSSara Sharon * @mvm: the mvm component 237326d6c16bSSara Sharon * @vif: the interface to which the multicast station is added 237426d6c16bSSara Sharon */ 237526d6c16bSSara Sharon int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 237626d6c16bSSara Sharon { 237726d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 237826d6c16bSSara Sharon struct iwl_mvm_int_sta *msta = &mvmvif->mcast_sta; 237926d6c16bSSara Sharon static const u8 _maddr[] = {0x03, 0x00, 0x00, 0x00, 0x00, 0x00}; 238026d6c16bSSara Sharon const u8 *maddr = _maddr; 238126d6c16bSSara Sharon struct iwl_trans_txq_scd_cfg cfg = { 2382192a7e1fSJohannes Berg .fifo = vif->type == NL80211_IFTYPE_AP ? 2383192a7e1fSJohannes Berg IWL_MVM_TX_FIFO_MCAST : IWL_MVM_TX_FIFO_BE, 238426d6c16bSSara Sharon .sta_id = msta->sta_id, 23856508de03SIlan Peer .tid = 0, 238626d6c16bSSara Sharon .aggregate = false, 238726d6c16bSSara Sharon .frame_limit = IWL_FRAME_LIMIT, 238826d6c16bSSara Sharon }; 238926d6c16bSSara Sharon unsigned int timeout = iwl_mvm_get_wd_timeout(mvm, vif, false, false); 239026d6c16bSSara Sharon int ret; 239126d6c16bSSara Sharon 239226d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 239326d6c16bSSara Sharon 2394ee48b722SLiad Kaufman if (WARN_ON(vif->type != NL80211_IFTYPE_AP && 2395ee48b722SLiad Kaufman vif->type != NL80211_IFTYPE_ADHOC)) 239626d6c16bSSara Sharon return -ENOTSUPP; 239726d6c16bSSara Sharon 2398ced19f26SSara Sharon /* 2399fc07bd8cSSara Sharon * In IBSS, ieee80211_check_queues() sets the cab_queue to be 2400fc07bd8cSSara Sharon * invalid, so make sure we use the queue we want. 2401fc07bd8cSSara Sharon * Note that this is done here as we want to avoid making DQA 2402fc07bd8cSSara Sharon * changes in mac80211 layer. 2403fc07bd8cSSara Sharon */ 2404cfbc6c4cSSara Sharon if (vif->type == NL80211_IFTYPE_ADHOC) 2405cfbc6c4cSSara Sharon mvmvif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE; 2406fc07bd8cSSara Sharon 2407fc07bd8cSSara Sharon /* 2408ced19f26SSara Sharon * While in previous FWs we had to exclude cab queue from TFD queue 2409ced19f26SSara Sharon * mask, now it is needed as any other queue. 2410ced19f26SSara Sharon */ 2411ced19f26SSara Sharon if (!iwl_mvm_has_new_tx_api(mvm) && 2412ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2413cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, 2414cfbc6c4cSSara Sharon timeout); 2415cfbc6c4cSSara Sharon msta->tfd_queue_msk |= BIT(mvmvif->cab_queue); 2416ced19f26SSara Sharon } 241726d6c16bSSara Sharon ret = iwl_mvm_add_int_sta_common(mvm, msta, maddr, 241826d6c16bSSara Sharon mvmvif->id, mvmvif->color); 241991cf5dedSJohannes Berg if (ret) 242091cf5dedSJohannes Berg goto err; 242126d6c16bSSara Sharon 242226d6c16bSSara Sharon /* 242326d6c16bSSara Sharon * Enable cab queue after the ADD_STA command is sent. 24242f7a3863SLuca Coelho * This is needed for 22000 firmware which won't accept SCD_QUEUE_CFG 2425ced19f26SSara Sharon * command with unknown station id, and for FW that doesn't support 2426ced19f26SSara Sharon * station API since the cab queue is not included in the 2427ced19f26SSara Sharon * tfd_queue_mask. 242826d6c16bSSara Sharon */ 2429310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 2430cfbc6c4cSSara Sharon int queue = iwl_mvm_tvqm_enable_txq(mvm, msta->sta_id, 24316508de03SIlan Peer 0, 243226d6c16bSSara Sharon timeout); 243391cf5dedSJohannes Berg if (queue < 0) { 243491cf5dedSJohannes Berg ret = queue; 243591cf5dedSJohannes Berg goto err; 243691cf5dedSJohannes Berg } 2437e2af3fabSSara Sharon mvmvif->cab_queue = queue; 2438ced19f26SSara Sharon } else if (!fw_has_api(&mvm->fw->ucode_capa, 2439fc07bd8cSSara Sharon IWL_UCODE_TLV_API_STA_TYPE)) 2440cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, 2441cfbc6c4cSSara Sharon timeout); 244226d6c16bSSara Sharon 244326d6c16bSSara Sharon return 0; 244491cf5dedSJohannes Berg err: 244591cf5dedSJohannes Berg iwl_mvm_dealloc_int_sta(mvm, msta); 244691cf5dedSJohannes Berg return ret; 244726d6c16bSSara Sharon } 244826d6c16bSSara Sharon 244928916a16SEmmanuel Grumbach static int __iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, u8 sta_id, 245028916a16SEmmanuel Grumbach struct ieee80211_key_conf *keyconf, 245128916a16SEmmanuel Grumbach bool mcast) 245228916a16SEmmanuel Grumbach { 245328916a16SEmmanuel Grumbach union { 245428916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 245528916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd cmd; 245628916a16SEmmanuel Grumbach } u = {}; 245728916a16SEmmanuel Grumbach bool new_api = fw_has_api(&mvm->fw->ucode_capa, 245828916a16SEmmanuel Grumbach IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 245928916a16SEmmanuel Grumbach __le16 key_flags; 246028916a16SEmmanuel Grumbach int ret, size; 246128916a16SEmmanuel Grumbach u32 status; 246228916a16SEmmanuel Grumbach 246328916a16SEmmanuel Grumbach /* This is a valid situation for GTK removal */ 246428916a16SEmmanuel Grumbach if (sta_id == IWL_MVM_INVALID_STA) 246528916a16SEmmanuel Grumbach return 0; 246628916a16SEmmanuel Grumbach 246728916a16SEmmanuel Grumbach key_flags = cpu_to_le16((keyconf->keyidx << STA_KEY_FLG_KEYID_POS) & 246828916a16SEmmanuel Grumbach STA_KEY_FLG_KEYID_MSK); 246928916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_FLG_NO_ENC | STA_KEY_FLG_WEP_KEY_MAP); 247028916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_NOT_VALID); 247128916a16SEmmanuel Grumbach 247228916a16SEmmanuel Grumbach if (mcast) 247328916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 247428916a16SEmmanuel Grumbach 247528916a16SEmmanuel Grumbach /* 247628916a16SEmmanuel Grumbach * The fields assigned here are in the same location at the start 247728916a16SEmmanuel Grumbach * of the command, so we can do this union trick. 247828916a16SEmmanuel Grumbach */ 247928916a16SEmmanuel Grumbach u.cmd.common.key_flags = key_flags; 248028916a16SEmmanuel Grumbach u.cmd.common.key_offset = keyconf->hw_key_idx; 248128916a16SEmmanuel Grumbach u.cmd.common.sta_id = sta_id; 248228916a16SEmmanuel Grumbach 248328916a16SEmmanuel Grumbach size = new_api ? sizeof(u.cmd) : sizeof(u.cmd_v1); 248428916a16SEmmanuel Grumbach 248528916a16SEmmanuel Grumbach status = ADD_STA_SUCCESS; 248628916a16SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, &u.cmd, 248728916a16SEmmanuel Grumbach &status); 248828916a16SEmmanuel Grumbach 248928916a16SEmmanuel Grumbach switch (status) { 249028916a16SEmmanuel Grumbach case ADD_STA_SUCCESS: 249128916a16SEmmanuel Grumbach IWL_DEBUG_WEP(mvm, "MODIFY_STA: remove sta key passed\n"); 249228916a16SEmmanuel Grumbach break; 249328916a16SEmmanuel Grumbach default: 249428916a16SEmmanuel Grumbach ret = -EIO; 249528916a16SEmmanuel Grumbach IWL_ERR(mvm, "MODIFY_STA: remove sta key failed\n"); 249628916a16SEmmanuel Grumbach break; 249728916a16SEmmanuel Grumbach } 249828916a16SEmmanuel Grumbach 249928916a16SEmmanuel Grumbach return ret; 250028916a16SEmmanuel Grumbach } 250128916a16SEmmanuel Grumbach 250226d6c16bSSara Sharon /* 250326d6c16bSSara Sharon * Send the FW a request to remove the station from it's internal data 250426d6c16bSSara Sharon * structures, and in addition remove it from the local data structure. 250526d6c16bSSara Sharon */ 250626d6c16bSSara Sharon int iwl_mvm_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 250726d6c16bSSara Sharon { 250826d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 250926d6c16bSSara Sharon int ret; 251026d6c16bSSara Sharon 251126d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 251226d6c16bSSara Sharon 2513f9084775SNathan Errera iwl_mvm_flush_sta(mvm, &mvmvif->mcast_sta, true); 2514d49394a1SSara Sharon 2515c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, mvmvif->mcast_sta.sta_id, 2516c5a976cfSJohannes Berg &mvmvif->cab_queue, 0); 251726d6c16bSSara Sharon 251826d6c16bSSara Sharon ret = iwl_mvm_rm_sta_common(mvm, mvmvif->mcast_sta.sta_id); 251926d6c16bSSara Sharon if (ret) 252026d6c16bSSara Sharon IWL_WARN(mvm, "Failed sending remove station\n"); 252126d6c16bSSara Sharon 252226d6c16bSSara Sharon return ret; 252326d6c16bSSara Sharon } 252426d6c16bSSara Sharon 2525b915c101SSara Sharon static void iwl_mvm_sync_rxq_del_ba(struct iwl_mvm *mvm, u8 baid) 252610b2b201SSara Sharon { 25275e1688ceSJohannes Berg struct iwl_mvm_delba_data notif = { 25285e1688ceSJohannes Berg .baid = baid, 2529b915c101SSara Sharon }; 25305e1688ceSJohannes Berg 25315e1688ceSJohannes Berg iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_NOTIF_DEL_BA, true, 25325e1688ceSJohannes Berg ¬if, sizeof(notif)); 253310b2b201SSara Sharon }; 253410b2b201SSara Sharon 2535b915c101SSara Sharon static void iwl_mvm_free_reorder(struct iwl_mvm *mvm, 2536b915c101SSara Sharon struct iwl_mvm_baid_data *data) 2537b915c101SSara Sharon { 2538b915c101SSara Sharon int i; 2539b915c101SSara Sharon 2540b915c101SSara Sharon iwl_mvm_sync_rxq_del_ba(mvm, data->baid); 2541b915c101SSara Sharon 2542b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2543b915c101SSara Sharon int j; 2544b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2545b915c101SSara Sharon &data->reorder_buf[i]; 2546dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2547dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2548b915c101SSara Sharon 25490690405fSSara Sharon spin_lock_bh(&reorder_buf->lock); 25500690405fSSara Sharon if (likely(!reorder_buf->num_stored)) { 25510690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 2552b915c101SSara Sharon continue; 25530690405fSSara Sharon } 2554b915c101SSara Sharon 2555b915c101SSara Sharon /* 2556b915c101SSara Sharon * This shouldn't happen in regular DELBA since the internal 2557b915c101SSara Sharon * delBA notification should trigger a release of all frames in 2558b915c101SSara Sharon * the reorder buffer. 2559b915c101SSara Sharon */ 2560b915c101SSara Sharon WARN_ON(1); 2561b915c101SSara Sharon 2562b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2563dfdddd92SJohannes Berg __skb_queue_purge(&entries[j].e.frames); 25640690405fSSara Sharon /* 25650690405fSSara Sharon * Prevent timer re-arm. This prevents a very far fetched case 25660690405fSSara Sharon * where we timed out on the notification. There may be prior 25670690405fSSara Sharon * RX frames pending in the RX queue before the notification 25680690405fSSara Sharon * that might get processed between now and the actual deletion 25690690405fSSara Sharon * and we would re-arm the timer although we are deleting the 25700690405fSSara Sharon * reorder buffer. 25710690405fSSara Sharon */ 25720690405fSSara Sharon reorder_buf->removed = true; 25730690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 25740690405fSSara Sharon del_timer_sync(&reorder_buf->reorder_timer); 2575b915c101SSara Sharon } 2576b915c101SSara Sharon } 2577b915c101SSara Sharon 2578b915c101SSara Sharon static void iwl_mvm_init_reorder_buffer(struct iwl_mvm *mvm, 2579b915c101SSara Sharon struct iwl_mvm_baid_data *data, 2580514c3069SLuca Coelho u16 ssn, u16 buf_size) 2581b915c101SSara Sharon { 2582b915c101SSara Sharon int i; 2583b915c101SSara Sharon 2584b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2585b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2586b915c101SSara Sharon &data->reorder_buf[i]; 2587dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2588dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2589b915c101SSara Sharon int j; 2590b915c101SSara Sharon 2591b915c101SSara Sharon reorder_buf->num_stored = 0; 2592b915c101SSara Sharon reorder_buf->head_sn = ssn; 2593b915c101SSara Sharon reorder_buf->buf_size = buf_size; 25940690405fSSara Sharon /* rx reorder timer */ 25958cef5344SKees Cook timer_setup(&reorder_buf->reorder_timer, 25968cef5344SKees Cook iwl_mvm_reorder_timer_expired, 0); 25970690405fSSara Sharon spin_lock_init(&reorder_buf->lock); 25980690405fSSara Sharon reorder_buf->mvm = mvm; 2599b915c101SSara Sharon reorder_buf->queue = i; 26005d43eab6SSara Sharon reorder_buf->valid = false; 2601b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2602dfdddd92SJohannes Berg __skb_queue_head_init(&entries[j].e.frames); 2603b915c101SSara Sharon } 260410b2b201SSara Sharon } 260510b2b201SSara Sharon 260697f70c56SJohannes Berg static int iwl_mvm_fw_baid_op_sta(struct iwl_mvm *mvm, 260797f70c56SJohannes Berg struct iwl_mvm_sta *mvm_sta, 260897f70c56SJohannes Berg bool start, int tid, u16 ssn, 260997f70c56SJohannes Berg u16 buf_size) 26100f3a4e48SJohannes Berg { 26110f3a4e48SJohannes Berg struct iwl_mvm_add_sta_cmd cmd = { 26120f3a4e48SJohannes Berg .mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color), 26130f3a4e48SJohannes Berg .sta_id = mvm_sta->sta_id, 26140f3a4e48SJohannes Berg .add_modify = STA_MODE_MODIFY, 26150f3a4e48SJohannes Berg }; 26160f3a4e48SJohannes Berg u32 status; 26170f3a4e48SJohannes Berg int ret; 26180f3a4e48SJohannes Berg 26190f3a4e48SJohannes Berg if (start) { 26200f3a4e48SJohannes Berg cmd.add_immediate_ba_tid = tid; 26210f3a4e48SJohannes Berg cmd.add_immediate_ba_ssn = cpu_to_le16(ssn); 26220f3a4e48SJohannes Berg cmd.rx_ba_window = cpu_to_le16(buf_size); 26230f3a4e48SJohannes Berg cmd.modify_mask = STA_MODIFY_ADD_BA_TID; 26240f3a4e48SJohannes Berg } else { 26250f3a4e48SJohannes Berg cmd.remove_immediate_ba_tid = tid; 26260f3a4e48SJohannes Berg cmd.modify_mask = STA_MODIFY_REMOVE_BA_TID; 26270f3a4e48SJohannes Berg } 26280f3a4e48SJohannes Berg 26290f3a4e48SJohannes Berg status = ADD_STA_SUCCESS; 26300f3a4e48SJohannes Berg ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 26310f3a4e48SJohannes Berg iwl_mvm_add_sta_cmd_size(mvm), 26320f3a4e48SJohannes Berg &cmd, &status); 26330f3a4e48SJohannes Berg if (ret) 26340f3a4e48SJohannes Berg return ret; 26350f3a4e48SJohannes Berg 26360f3a4e48SJohannes Berg switch (status & IWL_ADD_STA_STATUS_MASK) { 26370f3a4e48SJohannes Berg case ADD_STA_SUCCESS: 26380f3a4e48SJohannes Berg IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n", 26390f3a4e48SJohannes Berg start ? "start" : "stopp"); 26400f3a4e48SJohannes Berg if (WARN_ON(start && iwl_mvm_has_new_rx_api(mvm) && 26410f3a4e48SJohannes Berg !(status & IWL_ADD_STA_BAID_VALID_MASK))) 26420f3a4e48SJohannes Berg return -EINVAL; 26430f3a4e48SJohannes Berg return u32_get_bits(status, IWL_ADD_STA_BAID_MASK); 26440f3a4e48SJohannes Berg case ADD_STA_IMMEDIATE_BA_FAILURE: 26450f3a4e48SJohannes Berg IWL_WARN(mvm, "RX BA Session refused by fw\n"); 26460f3a4e48SJohannes Berg return -ENOSPC; 26470f3a4e48SJohannes Berg default: 26480f3a4e48SJohannes Berg IWL_ERR(mvm, "RX BA Session failed %sing, status 0x%x\n", 26490f3a4e48SJohannes Berg start ? "start" : "stopp", status); 26500f3a4e48SJohannes Berg return -EIO; 26510f3a4e48SJohannes Berg } 26520f3a4e48SJohannes Berg } 26530f3a4e48SJohannes Berg 265497f70c56SJohannes Berg static int iwl_mvm_fw_baid_op_cmd(struct iwl_mvm *mvm, 265597f70c56SJohannes Berg struct iwl_mvm_sta *mvm_sta, 265697f70c56SJohannes Berg bool start, int tid, u16 ssn, 265797f70c56SJohannes Berg u16 buf_size, int baid) 265897f70c56SJohannes Berg { 265997f70c56SJohannes Berg struct iwl_rx_baid_cfg_cmd cmd = { 266097f70c56SJohannes Berg .action = start ? cpu_to_le32(IWL_RX_BAID_ACTION_ADD) : 266197f70c56SJohannes Berg cpu_to_le32(IWL_RX_BAID_ACTION_REMOVE), 266297f70c56SJohannes Berg }; 266397f70c56SJohannes Berg u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, RX_BAID_ALLOCATION_CONFIG_CMD); 266497f70c56SJohannes Berg int ret; 266597f70c56SJohannes Berg 266697f70c56SJohannes Berg BUILD_BUG_ON(sizeof(struct iwl_rx_baid_cfg_resp) != sizeof(baid)); 266797f70c56SJohannes Berg 266897f70c56SJohannes Berg if (start) { 266997f70c56SJohannes Berg cmd.alloc.sta_id_mask = cpu_to_le32(BIT(mvm_sta->sta_id)); 267097f70c56SJohannes Berg cmd.alloc.tid = tid; 267197f70c56SJohannes Berg cmd.alloc.ssn = cpu_to_le16(ssn); 267297f70c56SJohannes Berg cmd.alloc.win_size = cpu_to_le16(buf_size); 267397f70c56SJohannes Berg baid = -EIO; 267426de4c8bSJohannes Berg } else if (iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1) == 1) { 267526de4c8bSJohannes Berg cmd.remove_v1.baid = cpu_to_le32(baid); 267626de4c8bSJohannes Berg BUILD_BUG_ON(sizeof(cmd.remove_v1) > sizeof(cmd.remove)); 267797f70c56SJohannes Berg } else { 267826de4c8bSJohannes Berg cmd.remove.sta_id_mask = cpu_to_le32(BIT(mvm_sta->sta_id)); 267926de4c8bSJohannes Berg cmd.remove.tid = cpu_to_le32(tid); 268097f70c56SJohannes Berg } 268197f70c56SJohannes Berg 268297f70c56SJohannes Berg ret = iwl_mvm_send_cmd_pdu_status(mvm, cmd_id, sizeof(cmd), 268397f70c56SJohannes Berg &cmd, &baid); 268497f70c56SJohannes Berg if (ret) 268597f70c56SJohannes Berg return ret; 268697f70c56SJohannes Berg 268797f70c56SJohannes Berg if (!start) { 268897f70c56SJohannes Berg /* ignore firmware baid on remove */ 268997f70c56SJohannes Berg baid = 0; 269097f70c56SJohannes Berg } 269197f70c56SJohannes Berg 269297f70c56SJohannes Berg IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n", 269397f70c56SJohannes Berg start ? "start" : "stopp"); 269497f70c56SJohannes Berg 269597f70c56SJohannes Berg if (baid < 0 || baid >= ARRAY_SIZE(mvm->baid_map)) 269697f70c56SJohannes Berg return -EINVAL; 269797f70c56SJohannes Berg 269897f70c56SJohannes Berg return baid; 269997f70c56SJohannes Berg } 270097f70c56SJohannes Berg 270197f70c56SJohannes Berg static int iwl_mvm_fw_baid_op(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvm_sta, 270297f70c56SJohannes Berg bool start, int tid, u16 ssn, u16 buf_size, 270397f70c56SJohannes Berg int baid) 270497f70c56SJohannes Berg { 270597f70c56SJohannes Berg if (fw_has_capa(&mvm->fw->ucode_capa, 270697f70c56SJohannes Berg IWL_UCODE_TLV_CAPA_BAID_ML_SUPPORT)) 270797f70c56SJohannes Berg return iwl_mvm_fw_baid_op_cmd(mvm, mvm_sta, start, 270897f70c56SJohannes Berg tid, ssn, buf_size, baid); 270997f70c56SJohannes Berg 271097f70c56SJohannes Berg return iwl_mvm_fw_baid_op_sta(mvm, mvm_sta, start, 271197f70c56SJohannes Berg tid, ssn, buf_size); 271297f70c56SJohannes Berg } 271397f70c56SJohannes Berg 2714e705c121SKalle Valo int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2715514c3069SLuca Coelho int tid, u16 ssn, bool start, u16 buf_size, u16 timeout) 2716e705c121SKalle Valo { 2717e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 271810b2b201SSara Sharon struct iwl_mvm_baid_data *baid_data = NULL; 27190f3a4e48SJohannes Berg int ret, baid; 2720ded5ded3SEmmanuel Grumbach u32 max_ba_id_sessions = iwl_mvm_has_new_tx_api(mvm) ? IWL_MAX_BAID : 2721ded5ded3SEmmanuel Grumbach IWL_MAX_BAID_OLD; 2722e705c121SKalle Valo 2723e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2724e705c121SKalle Valo 2725ded5ded3SEmmanuel Grumbach if (start && mvm->rx_ba_sessions >= max_ba_id_sessions) { 2726e705c121SKalle Valo IWL_WARN(mvm, "Not enough RX BA SESSIONS\n"); 2727e705c121SKalle Valo return -ENOSPC; 2728e705c121SKalle Valo } 2729e705c121SKalle Valo 273010b2b201SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && start) { 2731dfdddd92SJohannes Berg u16 reorder_buf_size = buf_size * sizeof(baid_data->entries[0]); 2732dfdddd92SJohannes Berg 2733dfdddd92SJohannes Berg /* sparse doesn't like the __align() so don't check */ 2734dfdddd92SJohannes Berg #ifndef __CHECKER__ 2735dfdddd92SJohannes Berg /* 2736dfdddd92SJohannes Berg * The division below will be OK if either the cache line size 2737dfdddd92SJohannes Berg * can be divided by the entry size (ALIGN will round up) or if 2738dfdddd92SJohannes Berg * if the entry size can be divided by the cache line size, in 2739dfdddd92SJohannes Berg * which case the ALIGN() will do nothing. 2740dfdddd92SJohannes Berg */ 2741dfdddd92SJohannes Berg BUILD_BUG_ON(SMP_CACHE_BYTES % sizeof(baid_data->entries[0]) && 2742dfdddd92SJohannes Berg sizeof(baid_data->entries[0]) % SMP_CACHE_BYTES); 2743dfdddd92SJohannes Berg #endif 2744dfdddd92SJohannes Berg 2745dfdddd92SJohannes Berg /* 2746dfdddd92SJohannes Berg * Upward align the reorder buffer size to fill an entire cache 2747dfdddd92SJohannes Berg * line for each queue, to avoid sharing cache lines between 2748dfdddd92SJohannes Berg * different queues. 2749dfdddd92SJohannes Berg */ 2750dfdddd92SJohannes Berg reorder_buf_size = ALIGN(reorder_buf_size, SMP_CACHE_BYTES); 2751dfdddd92SJohannes Berg 275210b2b201SSara Sharon /* 275310b2b201SSara Sharon * Allocate here so if allocation fails we can bail out early 275410b2b201SSara Sharon * before starting the BA session in the firmware 275510b2b201SSara Sharon */ 2756b915c101SSara Sharon baid_data = kzalloc(sizeof(*baid_data) + 2757b915c101SSara Sharon mvm->trans->num_rx_queues * 2758dfdddd92SJohannes Berg reorder_buf_size, 2759b915c101SSara Sharon GFP_KERNEL); 276010b2b201SSara Sharon if (!baid_data) 276110b2b201SSara Sharon return -ENOMEM; 2762dfdddd92SJohannes Berg 2763dfdddd92SJohannes Berg /* 2764dfdddd92SJohannes Berg * This division is why we need the above BUILD_BUG_ON(), 2765dfdddd92SJohannes Berg * if that doesn't hold then this will not be right. 2766dfdddd92SJohannes Berg */ 2767dfdddd92SJohannes Berg baid_data->entries_per_queue = 2768dfdddd92SJohannes Berg reorder_buf_size / sizeof(baid_data->entries[0]); 276910b2b201SSara Sharon } 277010b2b201SSara Sharon 277197f70c56SJohannes Berg if (iwl_mvm_has_new_rx_api(mvm) && !start) { 277297f70c56SJohannes Berg baid = mvm_sta->tid_to_baid[tid]; 277397f70c56SJohannes Berg } else { 277497f70c56SJohannes Berg /* we don't really need it in this case */ 277597f70c56SJohannes Berg baid = -1; 277697f70c56SJohannes Berg } 277797f70c56SJohannes Berg 27783538c809SLuca Coelho /* Don't send command to remove (start=0) BAID during restart */ 27793538c809SLuca Coelho if (start || !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 278097f70c56SJohannes Berg baid = iwl_mvm_fw_baid_op(mvm, mvm_sta, start, tid, ssn, buf_size, 278197f70c56SJohannes Berg baid); 27823538c809SLuca Coelho 27830f3a4e48SJohannes Berg if (baid < 0) { 27840f3a4e48SJohannes Berg ret = baid; 278510b2b201SSara Sharon goto out_free; 2786e705c121SKalle Valo } 2787e705c121SKalle Valo 278810b2b201SSara Sharon if (start) { 2789e705c121SKalle Valo mvm->rx_ba_sessions++; 279010b2b201SSara Sharon 279110b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 279210b2b201SSara Sharon return 0; 279310b2b201SSara Sharon 279410b2b201SSara Sharon baid_data->baid = baid; 279510b2b201SSara Sharon baid_data->timeout = timeout; 279610b2b201SSara Sharon baid_data->last_rx = jiffies; 27978cef5344SKees Cook baid_data->rcu_ptr = &mvm->baid_map[baid]; 27988cef5344SKees Cook timer_setup(&baid_data->session_timer, 27998cef5344SKees Cook iwl_mvm_rx_agg_session_expired, 0); 280010b2b201SSara Sharon baid_data->mvm = mvm; 280110b2b201SSara Sharon baid_data->tid = tid; 280210b2b201SSara Sharon baid_data->sta_id = mvm_sta->sta_id; 280310b2b201SSara Sharon 280410b2b201SSara Sharon mvm_sta->tid_to_baid[tid] = baid; 280510b2b201SSara Sharon if (timeout) 280610b2b201SSara Sharon mod_timer(&baid_data->session_timer, 280710b2b201SSara Sharon TU_TO_EXP_TIME(timeout * 2)); 280810b2b201SSara Sharon 28093f1c4c58SSara Sharon iwl_mvm_init_reorder_buffer(mvm, baid_data, ssn, buf_size); 281010b2b201SSara Sharon /* 281110b2b201SSara Sharon * protect the BA data with RCU to cover a case where our 281210b2b201SSara Sharon * internal RX sync mechanism will timeout (not that it's 281310b2b201SSara Sharon * supposed to happen) and we will free the session data while 281410b2b201SSara Sharon * RX is being processed in parallel 281510b2b201SSara Sharon */ 281635263a03SSara Sharon IWL_DEBUG_HT(mvm, "Sta %d(%d) is assigned to BAID %d\n", 281735263a03SSara Sharon mvm_sta->sta_id, tid, baid); 281810b2b201SSara Sharon WARN_ON(rcu_access_pointer(mvm->baid_map[baid])); 281910b2b201SSara Sharon rcu_assign_pointer(mvm->baid_map[baid], baid_data); 282060dec523SSara Sharon } else { 28210f3a4e48SJohannes Berg baid = mvm_sta->tid_to_baid[tid]; 282210b2b201SSara Sharon 282360dec523SSara Sharon if (mvm->rx_ba_sessions > 0) 2824e705c121SKalle Valo /* check that restart flow didn't zero the counter */ 2825e705c121SKalle Valo mvm->rx_ba_sessions--; 282610b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 282710b2b201SSara Sharon return 0; 2828e705c121SKalle Valo 282910b2b201SSara Sharon if (WARN_ON(baid == IWL_RX_REORDER_DATA_INVALID_BAID)) 283010b2b201SSara Sharon return -EINVAL; 283110b2b201SSara Sharon 283210b2b201SSara Sharon baid_data = rcu_access_pointer(mvm->baid_map[baid]); 283310b2b201SSara Sharon if (WARN_ON(!baid_data)) 283410b2b201SSara Sharon return -EINVAL; 283510b2b201SSara Sharon 283610b2b201SSara Sharon /* synchronize all rx queues so we can safely delete */ 2837b915c101SSara Sharon iwl_mvm_free_reorder(mvm, baid_data); 2838292a089dSSteven Rostedt (Google) timer_shutdown_sync(&baid_data->session_timer); 283910b2b201SSara Sharon RCU_INIT_POINTER(mvm->baid_map[baid], NULL); 284010b2b201SSara Sharon kfree_rcu(baid_data, rcu_head); 284135263a03SSara Sharon IWL_DEBUG_HT(mvm, "BAID %d is free\n", baid); 28422438d430SJohannes Berg 28432438d430SJohannes Berg /* 28442438d430SJohannes Berg * After we've deleted it, do another queue sync 28452438d430SJohannes Berg * so if an IWL_MVM_RXQ_NSSN_SYNC was concurrently 28462438d430SJohannes Berg * running it won't find a new session in the old 28472438d430SJohannes Berg * BAID. It can find the NULL pointer for the BAID, 28482438d430SJohannes Berg * but we must not have it find a different session. 28492438d430SJohannes Berg */ 28502438d430SJohannes Berg iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, 28512438d430SJohannes Berg true, NULL, 0); 285210b2b201SSara Sharon } 285310b2b201SSara Sharon return 0; 285410b2b201SSara Sharon 285510b2b201SSara Sharon out_free: 285610b2b201SSara Sharon kfree(baid_data); 2857e705c121SKalle Valo return ret; 2858e705c121SKalle Valo } 2859e705c121SKalle Valo 28609794c64fSLiad Kaufman int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2861e705c121SKalle Valo int tid, u8 queue, bool start) 2862e705c121SKalle Valo { 2863e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2864e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 2865e705c121SKalle Valo int ret; 2866e705c121SKalle Valo u32 status; 2867e705c121SKalle Valo 2868e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2869e705c121SKalle Valo 2870e705c121SKalle Valo if (start) { 2871e705c121SKalle Valo mvm_sta->tfd_queue_msk |= BIT(queue); 2872e705c121SKalle Valo mvm_sta->tid_disable_agg &= ~BIT(tid); 2873e705c121SKalle Valo } else { 2874cf961e16SLiad Kaufman /* In DQA-mode the queue isn't removed on agg termination */ 2875e705c121SKalle Valo mvm_sta->tid_disable_agg |= BIT(tid); 2876e705c121SKalle Valo } 2877e705c121SKalle Valo 2878e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 2879e705c121SKalle Valo cmd.sta_id = mvm_sta->sta_id; 2880e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 2881bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) 2882bb49701bSSara Sharon cmd.modify_mask = STA_MODIFY_QUEUES; 2883bb49701bSSara Sharon cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 2884e705c121SKalle Valo cmd.tfd_queue_msk = cpu_to_le32(mvm_sta->tfd_queue_msk); 2885e705c121SKalle Valo cmd.tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg); 2886e705c121SKalle Valo 2887e705c121SKalle Valo status = ADD_STA_SUCCESS; 2888854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 2889854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 2890e705c121SKalle Valo &cmd, &status); 2891e705c121SKalle Valo if (ret) 2892e705c121SKalle Valo return ret; 2893e705c121SKalle Valo 2894837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 2895e705c121SKalle Valo case ADD_STA_SUCCESS: 2896e705c121SKalle Valo break; 2897e705c121SKalle Valo default: 2898e705c121SKalle Valo ret = -EIO; 2899e705c121SKalle Valo IWL_ERR(mvm, "TX BA Session failed %sing, status 0x%x\n", 2900e705c121SKalle Valo start ? "start" : "stopp", status); 2901e705c121SKalle Valo break; 2902e705c121SKalle Valo } 2903e705c121SKalle Valo 2904e705c121SKalle Valo return ret; 2905e705c121SKalle Valo } 2906e705c121SKalle Valo 2907e705c121SKalle Valo const u8 tid_to_mac80211_ac[] = { 2908e705c121SKalle Valo IEEE80211_AC_BE, 2909e705c121SKalle Valo IEEE80211_AC_BK, 2910e705c121SKalle Valo IEEE80211_AC_BK, 2911e705c121SKalle Valo IEEE80211_AC_BE, 2912e705c121SKalle Valo IEEE80211_AC_VI, 2913e705c121SKalle Valo IEEE80211_AC_VI, 2914e705c121SKalle Valo IEEE80211_AC_VO, 2915e705c121SKalle Valo IEEE80211_AC_VO, 29169794c64fSLiad Kaufman IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 2917e705c121SKalle Valo }; 2918e705c121SKalle Valo 2919e705c121SKalle Valo static const u8 tid_to_ucode_ac[] = { 2920e705c121SKalle Valo AC_BE, 2921e705c121SKalle Valo AC_BK, 2922e705c121SKalle Valo AC_BK, 2923e705c121SKalle Valo AC_BE, 2924e705c121SKalle Valo AC_VI, 2925e705c121SKalle Valo AC_VI, 2926e705c121SKalle Valo AC_VO, 2927e705c121SKalle Valo AC_VO, 2928e705c121SKalle Valo }; 2929e705c121SKalle Valo 2930e705c121SKalle Valo int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2931e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 *ssn) 2932e705c121SKalle Valo { 2933e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2934e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 2935dd32162dSLiad Kaufman u16 normalized_ssn; 2936b0d795a9SMordechay Goodstein u16 txq_id; 2937e705c121SKalle Valo int ret; 2938e705c121SKalle Valo 2939e705c121SKalle Valo if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT)) 2940e705c121SKalle Valo return -EINVAL; 2941e705c121SKalle Valo 2942bd800e41SNaftali Goldstein if (mvmsta->tid_data[tid].state != IWL_AGG_QUEUED && 2943bd800e41SNaftali Goldstein mvmsta->tid_data[tid].state != IWL_AGG_OFF) { 2944bd800e41SNaftali Goldstein IWL_ERR(mvm, 2945bd800e41SNaftali Goldstein "Start AGG when state is not IWL_AGG_QUEUED or IWL_AGG_OFF %d!\n", 2946e705c121SKalle Valo mvmsta->tid_data[tid].state); 2947e705c121SKalle Valo return -ENXIO; 2948e705c121SKalle Valo } 2949e705c121SKalle Valo 2950e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2951e705c121SKalle Valo 2952bd8f3fc6SLiad Kaufman if (mvmsta->tid_data[tid].txq_id == IWL_MVM_INVALID_QUEUE && 2953bd8f3fc6SLiad Kaufman iwl_mvm_has_new_tx_api(mvm)) { 2954bd8f3fc6SLiad Kaufman u8 ac = tid_to_mac80211_ac[tid]; 2955bd8f3fc6SLiad Kaufman 2956bd8f3fc6SLiad Kaufman ret = iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 2957bd8f3fc6SLiad Kaufman if (ret) 2958bd8f3fc6SLiad Kaufman return ret; 2959bd8f3fc6SLiad Kaufman } 2960bd8f3fc6SLiad Kaufman 2961e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2962e705c121SKalle Valo 2963cf961e16SLiad Kaufman /* 2964cf961e16SLiad Kaufman * Note the possible cases: 29654a6d2e52SAvraham Stern * 1. An enabled TXQ - TXQ needs to become agg'ed 29664a6d2e52SAvraham Stern * 2. The TXQ hasn't yet been enabled, so find a free one and mark 29674a6d2e52SAvraham Stern * it as reserved 2968cf961e16SLiad Kaufman */ 2969cf961e16SLiad Kaufman txq_id = mvmsta->tid_data[tid].txq_id; 297034e10860SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) { 2971b0d795a9SMordechay Goodstein ret = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 2972c8f54701SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 2973c8f54701SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 2974b0d795a9SMordechay Goodstein if (ret < 0) { 2975e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate agg queue\n"); 2976f3f240f9SJohannes Berg goto out; 2977e705c121SKalle Valo } 2978cf961e16SLiad Kaufman 2979b0d795a9SMordechay Goodstein txq_id = ret; 2980b0d795a9SMordechay Goodstein 2981cf961e16SLiad Kaufman /* TXQ hasn't yet been enabled, so mark it only as reserved */ 2982cf961e16SLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_RESERVED; 2983b0d795a9SMordechay Goodstein } else if (WARN_ON(txq_id >= IWL_MAX_HW_QUEUES)) { 2984b0d795a9SMordechay Goodstein ret = -ENXIO; 2985b0d795a9SMordechay Goodstein IWL_ERR(mvm, "tid_id %d out of range (0, %d)!\n", 2986b0d795a9SMordechay Goodstein tid, IWL_MAX_HW_QUEUES - 1); 2987b0d795a9SMordechay Goodstein goto out; 2988b0d795a9SMordechay Goodstein 29894a6d2e52SAvraham Stern } else if (unlikely(mvm->queue_info[txq_id].status == 29904a6d2e52SAvraham Stern IWL_MVM_QUEUE_SHARED)) { 29914a6d2e52SAvraham Stern ret = -ENXIO; 29924a6d2e52SAvraham Stern IWL_DEBUG_TX_QUEUES(mvm, 29934a6d2e52SAvraham Stern "Can't start tid %d agg on shared queue!\n", 29944a6d2e52SAvraham Stern tid); 2995f3f240f9SJohannes Berg goto out; 2996cf961e16SLiad Kaufman } 29979f9af3d7SLiad Kaufman 2998cf961e16SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 2999cf961e16SLiad Kaufman "AGG for tid %d will be on queue #%d\n", 3000cf961e16SLiad Kaufman tid, txq_id); 3001cf961e16SLiad Kaufman 3002e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 3003e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3004e705c121SKalle Valo tid_data->txq_id = txq_id; 3005e705c121SKalle Valo *ssn = tid_data->ssn; 3006e705c121SKalle Valo 3007e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 3008e705c121SKalle Valo "Start AGG: sta %d tid %d queue %d - ssn = %d, next_recl = %d\n", 3009e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->ssn, 3010e705c121SKalle Valo tid_data->next_reclaimed); 3011e705c121SKalle Valo 3012dd32162dSLiad Kaufman /* 30132f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 3014dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 3015dd32162dSLiad Kaufman */ 3016dd32162dSLiad Kaufman normalized_ssn = tid_data->ssn; 3017286ca8ebSLuca Coelho if (mvm->trans->trans_cfg->gen2) 3018dd32162dSLiad Kaufman normalized_ssn &= 0xff; 3019dd32162dSLiad Kaufman 3020dd32162dSLiad Kaufman if (normalized_ssn == tid_data->next_reclaimed) { 3021e705c121SKalle Valo tid_data->state = IWL_AGG_STARTING; 30222ce113deSJohannes Berg ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 3023e705c121SKalle Valo } else { 3024e705c121SKalle Valo tid_data->state = IWL_EMPTYING_HW_QUEUE_ADDBA; 30257e0ca723SMordechay Goodstein ret = IEEE80211_AMPDU_TX_START_DELAY_ADDBA; 30262ce113deSJohannes Berg } 3027e705c121SKalle Valo 30289f9af3d7SLiad Kaufman out: 3029e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3030e705c121SKalle Valo 3031e705c121SKalle Valo return ret; 3032e705c121SKalle Valo } 3033e705c121SKalle Valo 3034e705c121SKalle Valo int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3035514c3069SLuca Coelho struct ieee80211_sta *sta, u16 tid, u16 buf_size, 3036bb81bb68SEmmanuel Grumbach bool amsdu) 3037e705c121SKalle Valo { 3038e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3039e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3040e705c121SKalle Valo unsigned int wdg_timeout = 3041e705c121SKalle Valo iwl_mvm_get_wd_timeout(mvm, vif, sta->tdls, false); 3042eea76c36SEmmanuel Grumbach int queue, ret; 3043cf961e16SLiad Kaufman bool alloc_queue = true; 30449f9af3d7SLiad Kaufman enum iwl_mvm_queue_status queue_status; 3045e705c121SKalle Valo u16 ssn; 3046e705c121SKalle Valo 3047eea76c36SEmmanuel Grumbach struct iwl_trans_txq_scd_cfg cfg = { 3048eea76c36SEmmanuel Grumbach .sta_id = mvmsta->sta_id, 3049eea76c36SEmmanuel Grumbach .tid = tid, 3050eea76c36SEmmanuel Grumbach .frame_limit = buf_size, 3051eea76c36SEmmanuel Grumbach .aggregate = true, 3052eea76c36SEmmanuel Grumbach }; 3053eea76c36SEmmanuel Grumbach 3054ecaf71deSGregory Greenman /* 3055ecaf71deSGregory Greenman * When FW supports TLC_OFFLOAD, it also implements Tx aggregation 3056ecaf71deSGregory Greenman * manager, so this function should never be called in this case. 3057ecaf71deSGregory Greenman */ 30584243edb4SEmmanuel Grumbach if (WARN_ON_ONCE(iwl_mvm_has_tlc_offload(mvm))) 3059ecaf71deSGregory Greenman return -EINVAL; 3060ecaf71deSGregory Greenman 3061e705c121SKalle Valo BUILD_BUG_ON((sizeof(mvmsta->agg_tids) * BITS_PER_BYTE) 3062e705c121SKalle Valo != IWL_MAX_TID_COUNT); 3063e705c121SKalle Valo 3064e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3065e705c121SKalle Valo ssn = tid_data->ssn; 3066e705c121SKalle Valo queue = tid_data->txq_id; 3067e705c121SKalle Valo tid_data->state = IWL_AGG_ON; 3068e705c121SKalle Valo mvmsta->agg_tids |= BIT(tid); 3069e705c121SKalle Valo tid_data->ssn = 0xffff; 3070bb81bb68SEmmanuel Grumbach tid_data->amsdu_in_ampdu_allowed = amsdu; 3071e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3072e705c121SKalle Valo 307334e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 307434e10860SSara Sharon /* 30750ec9257bSSara Sharon * If there is no queue for this tid, iwl_mvm_sta_tx_agg_start() 30760ec9257bSSara Sharon * would have failed, so if we are here there is no need to 30770ec9257bSSara Sharon * allocate a queue. 30780ec9257bSSara Sharon * However, if aggregation size is different than the default 30790ec9257bSSara Sharon * size, the scheduler should be reconfigured. 30800ec9257bSSara Sharon * We cannot do this with the new TX API, so return unsupported 30810ec9257bSSara Sharon * for now, until it will be offloaded to firmware.. 30820ec9257bSSara Sharon * Note that if SCD default value changes - this condition 30830ec9257bSSara Sharon * should be updated as well. 308434e10860SSara Sharon */ 30850ec9257bSSara Sharon if (buf_size < IWL_FRAME_LIMIT) 308634e10860SSara Sharon return -ENOTSUPP; 308734e10860SSara Sharon 308834e10860SSara Sharon ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 308934e10860SSara Sharon if (ret) 309034e10860SSara Sharon return -EIO; 309134e10860SSara Sharon goto out; 309234e10860SSara Sharon } 309334e10860SSara Sharon 3094eea76c36SEmmanuel Grumbach cfg.fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 3095e705c121SKalle Valo 30969f9af3d7SLiad Kaufman queue_status = mvm->queue_info[queue].status; 30979f9af3d7SLiad Kaufman 3098cf961e16SLiad Kaufman /* Maybe there is no need to even alloc a queue... */ 3099cf961e16SLiad Kaufman if (mvm->queue_info[queue].status == IWL_MVM_QUEUE_READY) 3100cf961e16SLiad Kaufman alloc_queue = false; 3101cf961e16SLiad Kaufman 3102cf961e16SLiad Kaufman /* 3103cf961e16SLiad Kaufman * Only reconfig the SCD for the queue if the window size has 3104cf961e16SLiad Kaufman * changed from current (become smaller) 3105cf961e16SLiad Kaufman */ 31060ec9257bSSara Sharon if (!alloc_queue && buf_size < IWL_FRAME_LIMIT) { 3107cf961e16SLiad Kaufman /* 3108cf961e16SLiad Kaufman * If reconfiguring an existing queue, it first must be 3109cf961e16SLiad Kaufman * drained 3110cf961e16SLiad Kaufman */ 3111a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 3112cf961e16SLiad Kaufman BIT(queue)); 3113cf961e16SLiad Kaufman if (ret) { 3114cf961e16SLiad Kaufman IWL_ERR(mvm, 3115cf961e16SLiad Kaufman "Error draining queue before reconfig\n"); 3116cf961e16SLiad Kaufman return ret; 3117cf961e16SLiad Kaufman } 3118cf961e16SLiad Kaufman 3119cf961e16SLiad Kaufman ret = iwl_mvm_reconfig_scd(mvm, queue, cfg.fifo, 3120cf961e16SLiad Kaufman mvmsta->sta_id, tid, 3121cf961e16SLiad Kaufman buf_size, ssn); 3122cf961e16SLiad Kaufman if (ret) { 3123cf961e16SLiad Kaufman IWL_ERR(mvm, 3124cf961e16SLiad Kaufman "Error reconfiguring TXQ #%d\n", queue); 3125cf961e16SLiad Kaufman return ret; 3126cf961e16SLiad Kaufman } 3127cf961e16SLiad Kaufman } 3128cf961e16SLiad Kaufman 3129cf961e16SLiad Kaufman if (alloc_queue) 3130cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, queue, ssn, 3131cf961e16SLiad Kaufman &cfg, wdg_timeout); 3132e705c121SKalle Valo 31339f9af3d7SLiad Kaufman /* Send ADD_STA command to enable aggs only if the queue isn't shared */ 31349f9af3d7SLiad Kaufman if (queue_status != IWL_MVM_QUEUE_SHARED) { 3135e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 3136e705c121SKalle Valo if (ret) 3137e705c121SKalle Valo return -EIO; 31389f9af3d7SLiad Kaufman } 3139e705c121SKalle Valo 3140e705c121SKalle Valo /* No need to mark as reserved */ 3141cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 3142e705c121SKalle Valo 314334e10860SSara Sharon out: 3144e705c121SKalle Valo /* 3145e705c121SKalle Valo * Even though in theory the peer could have different 3146e705c121SKalle Valo * aggregation reorder buffer sizes for different sessions, 3147e705c121SKalle Valo * our ucode doesn't allow for that and has a global limit 3148e705c121SKalle Valo * for each station. Therefore, use the minimum of all the 3149e705c121SKalle Valo * aggregation sessions and our default value. 3150e705c121SKalle Valo */ 3151e705c121SKalle Valo mvmsta->max_agg_bufsize = 3152e705c121SKalle Valo min(mvmsta->max_agg_bufsize, buf_size); 3153ecaf71deSGregory Greenman mvmsta->lq_sta.rs_drv.lq.agg_frame_cnt_limit = mvmsta->max_agg_bufsize; 3154e705c121SKalle Valo 3155e705c121SKalle Valo IWL_DEBUG_HT(mvm, "Tx aggregation enabled on ra = %pM tid = %d\n", 3156e705c121SKalle Valo sta->addr, tid); 3157e705c121SKalle Valo 3158cd4d6b0bSGregory Greenman return iwl_mvm_send_lq_cmd(mvm, &mvmsta->lq_sta.rs_drv.lq); 3159e705c121SKalle Valo } 3160e705c121SKalle Valo 316134e10860SSara Sharon static void iwl_mvm_unreserve_agg_queue(struct iwl_mvm *mvm, 316234e10860SSara Sharon struct iwl_mvm_sta *mvmsta, 31634b387906SAvraham Stern struct iwl_mvm_tid_data *tid_data) 316434e10860SSara Sharon { 31654b387906SAvraham Stern u16 txq_id = tid_data->txq_id; 31664b387906SAvraham Stern 3167f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 3168f3f240f9SJohannes Berg 316934e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 317034e10860SSara Sharon return; 317134e10860SSara Sharon 317234e10860SSara Sharon /* 317334e10860SSara Sharon * The TXQ is marked as reserved only if no traffic came through yet 317434e10860SSara Sharon * This means no traffic has been sent on this TID (agg'd or not), so 317534e10860SSara Sharon * we no longer have use for the queue. Since it hasn't even been 317634e10860SSara Sharon * allocated through iwl_mvm_enable_txq, so we can just mark it back as 317734e10860SSara Sharon * free. 317834e10860SSara Sharon */ 31794b387906SAvraham Stern if (mvm->queue_info[txq_id].status == IWL_MVM_QUEUE_RESERVED) { 318034e10860SSara Sharon mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_FREE; 31814b387906SAvraham Stern tid_data->txq_id = IWL_MVM_INVALID_QUEUE; 31824b387906SAvraham Stern } 318334e10860SSara Sharon } 318434e10860SSara Sharon 3185e705c121SKalle Valo int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3186e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3187e705c121SKalle Valo { 3188e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3189e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3190e705c121SKalle Valo u16 txq_id; 3191e705c121SKalle Valo int err; 3192e705c121SKalle Valo 3193e705c121SKalle Valo /* 3194e705c121SKalle Valo * If mac80211 is cleaning its state, then say that we finished since 3195e705c121SKalle Valo * our state has been cleared anyway. 3196e705c121SKalle Valo */ 3197e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3198e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3199e705c121SKalle Valo return 0; 3200e705c121SKalle Valo } 3201e705c121SKalle Valo 3202e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3203e705c121SKalle Valo 3204e705c121SKalle Valo txq_id = tid_data->txq_id; 3205e705c121SKalle Valo 3206e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Stop AGG: sta %d tid %d q %d state %d\n", 3207e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 3208e705c121SKalle Valo 3209e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3210e705c121SKalle Valo 32114b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3212e705c121SKalle Valo 3213e705c121SKalle Valo switch (tid_data->state) { 3214e705c121SKalle Valo case IWL_AGG_ON: 3215e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3216e705c121SKalle Valo 3217e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 3218e705c121SKalle Valo "ssn = %d, next_recl = %d\n", 3219e705c121SKalle Valo tid_data->ssn, tid_data->next_reclaimed); 3220e705c121SKalle Valo 3221e705c121SKalle Valo tid_data->ssn = 0xffff; 3222e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3223e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3224e705c121SKalle Valo 3225e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3226e705c121SKalle Valo 3227e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3228e705c121SKalle Valo return 0; 3229e705c121SKalle Valo case IWL_AGG_STARTING: 3230e705c121SKalle Valo case IWL_EMPTYING_HW_QUEUE_ADDBA: 3231e705c121SKalle Valo /* 3232e705c121SKalle Valo * The agg session has been stopped before it was set up. This 3233e705c121SKalle Valo * can happen when the AddBA timer times out for example. 3234e705c121SKalle Valo */ 3235e705c121SKalle Valo 3236e705c121SKalle Valo /* No barriers since we are under mutex */ 3237e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3238e705c121SKalle Valo 3239e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3240e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3241e705c121SKalle Valo err = 0; 3242e705c121SKalle Valo break; 3243e705c121SKalle Valo default: 3244e705c121SKalle Valo IWL_ERR(mvm, 3245e705c121SKalle Valo "Stopping AGG while state not ON or starting for %d on %d (%d)\n", 3246e705c121SKalle Valo mvmsta->sta_id, tid, tid_data->state); 3247e705c121SKalle Valo IWL_ERR(mvm, 3248e705c121SKalle Valo "\ttid_data->txq_id = %d\n", tid_data->txq_id); 3249e705c121SKalle Valo err = -EINVAL; 3250e705c121SKalle Valo } 3251e705c121SKalle Valo 3252e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3253e705c121SKalle Valo 3254e705c121SKalle Valo return err; 3255e705c121SKalle Valo } 3256e705c121SKalle Valo 3257e705c121SKalle Valo int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3258e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3259e705c121SKalle Valo { 3260e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3261e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3262e705c121SKalle Valo u16 txq_id; 3263e705c121SKalle Valo enum iwl_mvm_agg_state old_state; 3264e705c121SKalle Valo 3265e705c121SKalle Valo /* 3266e705c121SKalle Valo * First set the agg state to OFF to avoid calling 3267e705c121SKalle Valo * ieee80211_stop_tx_ba_cb in iwl_mvm_check_ratid_empty. 3268e705c121SKalle Valo */ 3269e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3270e705c121SKalle Valo txq_id = tid_data->txq_id; 3271e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Flush AGG: sta %d tid %d q %d state %d\n", 3272e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 3273e705c121SKalle Valo old_state = tid_data->state; 3274e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3275e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3276e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3277e705c121SKalle Valo 32784b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3279e705c121SKalle Valo 3280e705c121SKalle Valo if (old_state >= IWL_AGG_ON) { 3281e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, true); 3282d167e81aSMordechai Goodstein 3283d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) { 3284d167e81aSMordechai Goodstein if (iwl_mvm_flush_sta_tids(mvm, mvmsta->sta_id, 3285d4e3a341SMordechay Goodstein BIT(tid))) 3286d167e81aSMordechai Goodstein IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 3287d167e81aSMordechai Goodstein iwl_trans_wait_txq_empty(mvm->trans, txq_id); 3288d167e81aSMordechai Goodstein } else { 3289d4e3a341SMordechay Goodstein if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id))) 3290e705c121SKalle Valo IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 32910b90964aSSara Sharon iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(txq_id)); 3292d167e81aSMordechai Goodstein } 3293d6d517b7SSara Sharon 3294e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, false); 3295e705c121SKalle Valo 3296e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3297e705c121SKalle Valo } 3298e705c121SKalle Valo 3299e705c121SKalle Valo return 0; 3300e705c121SKalle Valo } 3301e705c121SKalle Valo 3302e705c121SKalle Valo static int iwl_mvm_set_fw_key_idx(struct iwl_mvm *mvm) 3303e705c121SKalle Valo { 3304e705c121SKalle Valo int i, max = -1, max_offs = -1; 3305e705c121SKalle Valo 3306e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3307e705c121SKalle Valo 3308e705c121SKalle Valo /* Pick the unused key offset with the highest 'deleted' 3309e705c121SKalle Valo * counter. Every time a key is deleted, all the counters 3310e705c121SKalle Valo * are incremented and the one that was just deleted is 3311e705c121SKalle Valo * reset to zero. Thus, the highest counter is the one 3312e705c121SKalle Valo * that was deleted longest ago. Pick that one. 3313e705c121SKalle Valo */ 3314e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3315e705c121SKalle Valo if (test_bit(i, mvm->fw_key_table)) 3316e705c121SKalle Valo continue; 3317e705c121SKalle Valo if (mvm->fw_key_deleted[i] > max) { 3318e705c121SKalle Valo max = mvm->fw_key_deleted[i]; 3319e705c121SKalle Valo max_offs = i; 3320e705c121SKalle Valo } 3321e705c121SKalle Valo } 3322e705c121SKalle Valo 3323e705c121SKalle Valo if (max_offs < 0) 3324e705c121SKalle Valo return STA_KEY_IDX_INVALID; 3325e705c121SKalle Valo 3326e705c121SKalle Valo return max_offs; 3327e705c121SKalle Valo } 3328e705c121SKalle Valo 33295f7a1847SJohannes Berg static struct iwl_mvm_sta *iwl_mvm_get_key_sta(struct iwl_mvm *mvm, 33304615fd15SEmmanuel Grumbach struct ieee80211_vif *vif, 3331e705c121SKalle Valo struct ieee80211_sta *sta) 3332e705c121SKalle Valo { 3333e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3334e705c121SKalle Valo 33355f7a1847SJohannes Berg if (sta) 33365f7a1847SJohannes Berg return iwl_mvm_sta_from_mac80211(sta); 3337e705c121SKalle Valo 3338e705c121SKalle Valo /* 3339e705c121SKalle Valo * The device expects GTKs for station interfaces to be 3340e705c121SKalle Valo * installed as GTKs for the AP station. If we have no 3341e705c121SKalle Valo * station ID, then use AP's station ID. 3342e705c121SKalle Valo */ 3343e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 33440ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 33454615fd15SEmmanuel Grumbach u8 sta_id = mvmvif->ap_sta_id; 33464615fd15SEmmanuel Grumbach 33477d6a1ab6SEmmanuel Grumbach sta = rcu_dereference_check(mvm->fw_id_to_mac_id[sta_id], 33487d6a1ab6SEmmanuel Grumbach lockdep_is_held(&mvm->mutex)); 33497d6a1ab6SEmmanuel Grumbach 33504615fd15SEmmanuel Grumbach /* 33514615fd15SEmmanuel Grumbach * It is possible that the 'sta' parameter is NULL, 33524615fd15SEmmanuel Grumbach * for example when a GTK is removed - the sta_id will then 33534615fd15SEmmanuel Grumbach * be the AP ID, and no station was passed by mac80211. 33544615fd15SEmmanuel Grumbach */ 33557d6a1ab6SEmmanuel Grumbach if (IS_ERR_OR_NULL(sta)) 33567d6a1ab6SEmmanuel Grumbach return NULL; 33577d6a1ab6SEmmanuel Grumbach 33587d6a1ab6SEmmanuel Grumbach return iwl_mvm_sta_from_mac80211(sta); 33594615fd15SEmmanuel Grumbach } 3360e705c121SKalle Valo 33615f7a1847SJohannes Berg return NULL; 3362e705c121SKalle Valo } 3363e705c121SKalle Valo 3364a6dfbd04SJohannes Berg static int iwl_mvm_pn_cmp(const u8 *pn1, const u8 *pn2, int len) 3365a6dfbd04SJohannes Berg { 3366a6dfbd04SJohannes Berg int i; 3367a6dfbd04SJohannes Berg 3368a6dfbd04SJohannes Berg for (i = len - 1; i >= 0; i--) { 3369a6dfbd04SJohannes Berg if (pn1[i] > pn2[i]) 3370a6dfbd04SJohannes Berg return 1; 3371a6dfbd04SJohannes Berg if (pn1[i] < pn2[i]) 3372a6dfbd04SJohannes Berg return -1; 3373a6dfbd04SJohannes Berg } 3374a6dfbd04SJohannes Berg 3375a6dfbd04SJohannes Berg return 0; 3376a6dfbd04SJohannes Berg } 3377a6dfbd04SJohannes Berg 3378e705c121SKalle Valo static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm, 337985aeb58cSDavid Spinadel u32 sta_id, 338045c458b4SSara Sharon struct ieee80211_key_conf *key, bool mcast, 33814615fd15SEmmanuel Grumbach u32 tkip_iv32, u16 *tkip_p1k, u32 cmd_flags, 33824883145aSEmmanuel Grumbach u8 key_offset, bool mfp) 3383e705c121SKalle Valo { 338445c458b4SSara Sharon union { 338545c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 338645c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd cmd; 338745c458b4SSara Sharon } u = {}; 3388e705c121SKalle Valo __le16 key_flags; 3389e705c121SKalle Valo int ret; 3390e705c121SKalle Valo u32 status; 3391e705c121SKalle Valo u16 keyidx; 339245c458b4SSara Sharon u64 pn = 0; 339345c458b4SSara Sharon int i, size; 339445c458b4SSara Sharon bool new_api = fw_has_api(&mvm->fw->ucode_capa, 339545c458b4SSara Sharon IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 3396971cbe50SJohannes Berg int api_ver = iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA_KEY, 3397199d895fSJohannes Berg new_api ? 2 : 1); 3398e705c121SKalle Valo 339985aeb58cSDavid Spinadel if (sta_id == IWL_MVM_INVALID_STA) 340085aeb58cSDavid Spinadel return -EINVAL; 340185aeb58cSDavid Spinadel 340245c458b4SSara Sharon keyidx = (key->keyidx << STA_KEY_FLG_KEYID_POS) & 3403e705c121SKalle Valo STA_KEY_FLG_KEYID_MSK; 3404e705c121SKalle Valo key_flags = cpu_to_le16(keyidx); 3405e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_KEY_MAP); 3406e705c121SKalle Valo 340745c458b4SSara Sharon switch (key->cipher) { 3408e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 3409e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_TKIP); 3410199d895fSJohannes Berg if (api_ver >= 2) { 341145c458b4SSara Sharon memcpy((void *)&u.cmd.tx_mic_key, 341245c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], 341345c458b4SSara Sharon IWL_MIC_KEY_SIZE); 341445c458b4SSara Sharon 341545c458b4SSara Sharon memcpy((void *)&u.cmd.rx_mic_key, 341645c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], 341745c458b4SSara Sharon IWL_MIC_KEY_SIZE); 341845c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 341945c458b4SSara Sharon 342045c458b4SSara Sharon } else { 342145c458b4SSara Sharon u.cmd_v1.tkip_rx_tsc_byte2 = tkip_iv32; 3422e705c121SKalle Valo for (i = 0; i < 5; i++) 342345c458b4SSara Sharon u.cmd_v1.tkip_rx_ttak[i] = 342445c458b4SSara Sharon cpu_to_le16(tkip_p1k[i]); 342545c458b4SSara Sharon } 342645c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3427e705c121SKalle Valo break; 3428e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 3429e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_CCM); 343045c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3431199d895fSJohannes Berg if (api_ver >= 2) 343245c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 3433e705c121SKalle Valo break; 3434e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 3435e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_13BYTES); 34365a2abdcaSGustavo A. R. Silva fallthrough; 3437e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 3438e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP); 343945c458b4SSara Sharon memcpy(u.cmd.common.key + 3, key->key, key->keylen); 3440e705c121SKalle Valo break; 34412a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 34422a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_KEY_32BYTES); 34435a2abdcaSGustavo A. R. Silva fallthrough; 34442a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 34452a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_GCMP); 344645c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3447199d895fSJohannes Berg if (api_ver >= 2) 344845c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 34492a53d166SAyala Beker break; 3450e705c121SKalle Valo default: 3451e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_EXT); 345245c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3453e705c121SKalle Valo } 3454e705c121SKalle Valo 3455e705c121SKalle Valo if (mcast) 3456e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 34574883145aSEmmanuel Grumbach if (mfp) 34584883145aSEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MFP); 3459e705c121SKalle Valo 346045c458b4SSara Sharon u.cmd.common.key_offset = key_offset; 346145c458b4SSara Sharon u.cmd.common.key_flags = key_flags; 346285aeb58cSDavid Spinadel u.cmd.common.sta_id = sta_id; 346345c458b4SSara Sharon 3464a6dfbd04SJohannes Berg if (key->cipher == WLAN_CIPHER_SUITE_TKIP) 3465a6dfbd04SJohannes Berg i = 0; 3466a6dfbd04SJohannes Berg else 3467a6dfbd04SJohannes Berg i = -1; 3468a6dfbd04SJohannes Berg 3469a6dfbd04SJohannes Berg for (; i < IEEE80211_NUM_TIDS; i++) { 3470a6dfbd04SJohannes Berg struct ieee80211_key_seq seq = {}; 3471a6dfbd04SJohannes Berg u8 _rx_pn[IEEE80211_MAX_PN_LEN] = {}, *rx_pn = _rx_pn; 3472a6dfbd04SJohannes Berg int rx_pn_len = 8; 3473199d895fSJohannes Berg /* there's a hole at 2/3 in FW format depending on version */ 3474199d895fSJohannes Berg int hole = api_ver >= 3 ? 0 : 2; 3475a6dfbd04SJohannes Berg 3476a6dfbd04SJohannes Berg ieee80211_get_key_rx_seq(key, i, &seq); 3477a6dfbd04SJohannes Berg 3478a6dfbd04SJohannes Berg if (key->cipher == WLAN_CIPHER_SUITE_TKIP) { 3479a6dfbd04SJohannes Berg rx_pn[0] = seq.tkip.iv16; 3480a6dfbd04SJohannes Berg rx_pn[1] = seq.tkip.iv16 >> 8; 3481199d895fSJohannes Berg rx_pn[2 + hole] = seq.tkip.iv32; 3482199d895fSJohannes Berg rx_pn[3 + hole] = seq.tkip.iv32 >> 8; 3483199d895fSJohannes Berg rx_pn[4 + hole] = seq.tkip.iv32 >> 16; 3484199d895fSJohannes Berg rx_pn[5 + hole] = seq.tkip.iv32 >> 24; 3485a6dfbd04SJohannes Berg } else if (key_flags & cpu_to_le16(STA_KEY_FLG_EXT)) { 3486a6dfbd04SJohannes Berg rx_pn = seq.hw.seq; 3487a6dfbd04SJohannes Berg rx_pn_len = seq.hw.seq_len; 3488a6dfbd04SJohannes Berg } else { 3489a6dfbd04SJohannes Berg rx_pn[0] = seq.ccmp.pn[0]; 3490a6dfbd04SJohannes Berg rx_pn[1] = seq.ccmp.pn[1]; 3491199d895fSJohannes Berg rx_pn[2 + hole] = seq.ccmp.pn[2]; 3492199d895fSJohannes Berg rx_pn[3 + hole] = seq.ccmp.pn[3]; 3493199d895fSJohannes Berg rx_pn[4 + hole] = seq.ccmp.pn[4]; 3494199d895fSJohannes Berg rx_pn[5 + hole] = seq.ccmp.pn[5]; 3495a6dfbd04SJohannes Berg } 3496a6dfbd04SJohannes Berg 3497a6dfbd04SJohannes Berg if (iwl_mvm_pn_cmp(rx_pn, (u8 *)&u.cmd.common.rx_secur_seq_cnt, 3498a6dfbd04SJohannes Berg rx_pn_len) > 0) 3499a6dfbd04SJohannes Berg memcpy(&u.cmd.common.rx_secur_seq_cnt, rx_pn, 3500a6dfbd04SJohannes Berg rx_pn_len); 3501a6dfbd04SJohannes Berg } 3502a6dfbd04SJohannes Berg 3503199d895fSJohannes Berg if (api_ver >= 2) { 350445c458b4SSara Sharon u.cmd.transmit_seq_cnt = cpu_to_le64(pn); 350545c458b4SSara Sharon size = sizeof(u.cmd); 350645c458b4SSara Sharon } else { 350745c458b4SSara Sharon size = sizeof(u.cmd_v1); 350845c458b4SSara Sharon } 3509e705c121SKalle Valo 3510e705c121SKalle Valo status = ADD_STA_SUCCESS; 3511e705c121SKalle Valo if (cmd_flags & CMD_ASYNC) 351245c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA_KEY, CMD_ASYNC, size, 351345c458b4SSara Sharon &u.cmd); 3514e705c121SKalle Valo else 351545c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, 351645c458b4SSara Sharon &u.cmd, &status); 3517e705c121SKalle Valo 3518e705c121SKalle Valo switch (status) { 3519e705c121SKalle Valo case ADD_STA_SUCCESS: 3520e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "MODIFY_STA: set dynamic key passed\n"); 3521e705c121SKalle Valo break; 3522e705c121SKalle Valo default: 3523e705c121SKalle Valo ret = -EIO; 3524e705c121SKalle Valo IWL_ERR(mvm, "MODIFY_STA: set dynamic key failed\n"); 3525e705c121SKalle Valo break; 3526e705c121SKalle Valo } 3527e705c121SKalle Valo 3528e705c121SKalle Valo return ret; 3529e705c121SKalle Valo } 3530e705c121SKalle Valo 3531e705c121SKalle Valo static int iwl_mvm_send_sta_igtk(struct iwl_mvm *mvm, 3532e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3533e705c121SKalle Valo u8 sta_id, bool remove_key) 3534e705c121SKalle Valo { 3535e705c121SKalle Valo struct iwl_mvm_mgmt_mcast_key_cmd igtk_cmd = {}; 3536e705c121SKalle Valo 3537e705c121SKalle Valo /* verify the key details match the required command's expectations */ 35388e160ab8SAyala Beker if (WARN_ON((keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) || 3539b1fdc250SJohannes Berg (keyconf->keyidx != 4 && keyconf->keyidx != 5 && 3540b1fdc250SJohannes Berg keyconf->keyidx != 6 && keyconf->keyidx != 7) || 35418e160ab8SAyala Beker (keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC && 35428e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_128 && 35438e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_256))) 35448e160ab8SAyala Beker return -EINVAL; 35458e160ab8SAyala Beker 35468e160ab8SAyala Beker if (WARN_ON(!iwl_mvm_has_new_rx_api(mvm) && 35478e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC)) 3548e705c121SKalle Valo return -EINVAL; 3549e705c121SKalle Valo 3550e705c121SKalle Valo igtk_cmd.key_id = cpu_to_le32(keyconf->keyidx); 3551e705c121SKalle Valo igtk_cmd.sta_id = cpu_to_le32(sta_id); 3552e705c121SKalle Valo 3553e705c121SKalle Valo if (remove_key) { 3554197288d5SLuca Coelho /* This is a valid situation for IGTK */ 3555197288d5SLuca Coelho if (sta_id == IWL_MVM_INVALID_STA) 3556197288d5SLuca Coelho return 0; 3557197288d5SLuca Coelho 3558e705c121SKalle Valo igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_NOT_VALID); 3559e705c121SKalle Valo } else { 3560e705c121SKalle Valo struct ieee80211_key_seq seq; 3561e705c121SKalle Valo const u8 *pn; 3562e705c121SKalle Valo 3563aa950524SAyala Beker switch (keyconf->cipher) { 3564aa950524SAyala Beker case WLAN_CIPHER_SUITE_AES_CMAC: 3565aa950524SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_CCM); 3566aa950524SAyala Beker break; 35678e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_128: 35688e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_256: 35698e160ab8SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_GCMP); 35708e160ab8SAyala Beker break; 3571aa950524SAyala Beker default: 3572aa950524SAyala Beker return -EINVAL; 3573aa950524SAyala Beker } 3574aa950524SAyala Beker 35758e160ab8SAyala Beker memcpy(igtk_cmd.igtk, keyconf->key, keyconf->keylen); 35768e160ab8SAyala Beker if (keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 35778e160ab8SAyala Beker igtk_cmd.ctrl_flags |= 35788e160ab8SAyala Beker cpu_to_le32(STA_KEY_FLG_KEY_32BYTES); 3579e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3580e705c121SKalle Valo pn = seq.aes_cmac.pn; 3581e705c121SKalle Valo igtk_cmd.receive_seq_cnt = cpu_to_le64(((u64) pn[5] << 0) | 3582e705c121SKalle Valo ((u64) pn[4] << 8) | 3583e705c121SKalle Valo ((u64) pn[3] << 16) | 3584e705c121SKalle Valo ((u64) pn[2] << 24) | 3585e705c121SKalle Valo ((u64) pn[1] << 32) | 3586e705c121SKalle Valo ((u64) pn[0] << 40)); 3587e705c121SKalle Valo } 3588e705c121SKalle Valo 3589b1fdc250SJohannes Berg IWL_DEBUG_INFO(mvm, "%s %sIGTK (%d) for sta %u\n", 3590e705c121SKalle Valo remove_key ? "removing" : "installing", 3591b1fdc250SJohannes Berg keyconf->keyidx >= 6 ? "B" : "", 3592b1fdc250SJohannes Berg keyconf->keyidx, igtk_cmd.sta_id); 3593e705c121SKalle Valo 35948e160ab8SAyala Beker if (!iwl_mvm_has_new_rx_api(mvm)) { 35958e160ab8SAyala Beker struct iwl_mvm_mgmt_mcast_key_cmd_v1 igtk_cmd_v1 = { 35968e160ab8SAyala Beker .ctrl_flags = igtk_cmd.ctrl_flags, 35978e160ab8SAyala Beker .key_id = igtk_cmd.key_id, 35988e160ab8SAyala Beker .sta_id = igtk_cmd.sta_id, 35998e160ab8SAyala Beker .receive_seq_cnt = igtk_cmd.receive_seq_cnt 36008e160ab8SAyala Beker }; 36018e160ab8SAyala Beker 36028e160ab8SAyala Beker memcpy(igtk_cmd_v1.igtk, igtk_cmd.igtk, 36038e160ab8SAyala Beker ARRAY_SIZE(igtk_cmd_v1.igtk)); 36048e160ab8SAyala Beker return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 36058e160ab8SAyala Beker sizeof(igtk_cmd_v1), &igtk_cmd_v1); 36068e160ab8SAyala Beker } 3607e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 3608e705c121SKalle Valo sizeof(igtk_cmd), &igtk_cmd); 3609e705c121SKalle Valo } 3610e705c121SKalle Valo 3611e705c121SKalle Valo 3612e705c121SKalle Valo static inline u8 *iwl_mvm_get_mac_addr(struct iwl_mvm *mvm, 3613e705c121SKalle Valo struct ieee80211_vif *vif, 3614e705c121SKalle Valo struct ieee80211_sta *sta) 3615e705c121SKalle Valo { 3616e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3617e705c121SKalle Valo 3618e705c121SKalle Valo if (sta) 3619e705c121SKalle Valo return sta->addr; 3620e705c121SKalle Valo 3621e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 36220ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 3623e705c121SKalle Valo u8 sta_id = mvmvif->ap_sta_id; 3624e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 3625e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3626e705c121SKalle Valo return sta->addr; 3627e705c121SKalle Valo } 3628e705c121SKalle Valo 3629e705c121SKalle Valo 3630e705c121SKalle Valo return NULL; 3631e705c121SKalle Valo } 3632e705c121SKalle Valo 3633e705c121SKalle Valo static int __iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3634e705c121SKalle Valo struct ieee80211_vif *vif, 3635e705c121SKalle Valo struct ieee80211_sta *sta, 3636e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 36374615fd15SEmmanuel Grumbach u8 key_offset, 3638e705c121SKalle Valo bool mcast) 3639e705c121SKalle Valo { 3640e705c121SKalle Valo const u8 *addr; 3641e705c121SKalle Valo struct ieee80211_key_seq seq; 3642e705c121SKalle Valo u16 p1k[5]; 364385aeb58cSDavid Spinadel u32 sta_id; 36444883145aSEmmanuel Grumbach bool mfp = false; 364585aeb58cSDavid Spinadel 364685aeb58cSDavid Spinadel if (sta) { 364785aeb58cSDavid Spinadel struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 364885aeb58cSDavid Spinadel 364985aeb58cSDavid Spinadel sta_id = mvm_sta->sta_id; 36504883145aSEmmanuel Grumbach mfp = sta->mfp; 365185aeb58cSDavid Spinadel } else if (vif->type == NL80211_IFTYPE_AP && 365285aeb58cSDavid Spinadel !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { 365385aeb58cSDavid Spinadel struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 365485aeb58cSDavid Spinadel 365585aeb58cSDavid Spinadel sta_id = mvmvif->mcast_sta.sta_id; 365685aeb58cSDavid Spinadel } else { 365785aeb58cSDavid Spinadel IWL_ERR(mvm, "Failed to find station id\n"); 365885aeb58cSDavid Spinadel return -EINVAL; 365985aeb58cSDavid Spinadel } 3660e705c121SKalle Valo 366195a62c33SJohannes Berg if (keyconf->cipher == WLAN_CIPHER_SUITE_TKIP) { 3662e705c121SKalle Valo addr = iwl_mvm_get_mac_addr(mvm, vif, sta); 3663e705c121SKalle Valo /* get phase 1 key from mac80211 */ 3664e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3665e705c121SKalle Valo ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k); 366695a62c33SJohannes Berg 366795a62c33SJohannes Berg return iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 36684883145aSEmmanuel Grumbach seq.tkip.iv32, p1k, 0, key_offset, 36694883145aSEmmanuel Grumbach mfp); 3670e705c121SKalle Valo } 3671e705c121SKalle Valo 367295a62c33SJohannes Berg return iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 367395a62c33SJohannes Berg 0, NULL, 0, key_offset, mfp); 3674e705c121SKalle Valo } 3675e705c121SKalle Valo 3676e705c121SKalle Valo int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3677e705c121SKalle Valo struct ieee80211_vif *vif, 3678e705c121SKalle Valo struct ieee80211_sta *sta, 3679e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 36804615fd15SEmmanuel Grumbach u8 key_offset) 3681e705c121SKalle Valo { 3682e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 36835f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 368485aeb58cSDavid Spinadel u8 sta_id = IWL_MVM_INVALID_STA; 3685e705c121SKalle Valo int ret; 3686e705c121SKalle Valo static const u8 __maybe_unused zero_addr[ETH_ALEN] = {0}; 3687e705c121SKalle Valo 3688e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3689e705c121SKalle Valo 369085aeb58cSDavid Spinadel if (vif->type != NL80211_IFTYPE_AP || 369185aeb58cSDavid Spinadel keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) { 3692e705c121SKalle Valo /* Get the station id from the mvm local station table */ 36935f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 36945f7a1847SJohannes Berg if (!mvm_sta) { 36955f7a1847SJohannes Berg IWL_ERR(mvm, "Failed to find station\n"); 3696e705c121SKalle Valo return -EINVAL; 3697e705c121SKalle Valo } 36985f7a1847SJohannes Berg sta_id = mvm_sta->sta_id; 3699e705c121SKalle Valo 3700e705c121SKalle Valo /* 3701e705c121SKalle Valo * It is possible that the 'sta' parameter is NULL, and thus 370285aeb58cSDavid Spinadel * there is a need to retrieve the sta from the local station 370385aeb58cSDavid Spinadel * table. 3704e705c121SKalle Valo */ 3705e705c121SKalle Valo if (!sta) { 370685aeb58cSDavid Spinadel sta = rcu_dereference_protected( 370785aeb58cSDavid Spinadel mvm->fw_id_to_mac_id[sta_id], 3708e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3709e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) { 3710e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 3711e705c121SKalle Valo return -EINVAL; 3712e705c121SKalle Valo } 3713e705c121SKalle Valo } 3714e705c121SKalle Valo 3715e705c121SKalle Valo if (WARN_ON_ONCE(iwl_mvm_sta_from_mac80211(sta)->vif != vif)) 3716e705c121SKalle Valo return -EINVAL; 3717e829b17cSBeni Lev } else { 3718e829b17cSBeni Lev struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3719e829b17cSBeni Lev 3720e829b17cSBeni Lev sta_id = mvmvif->mcast_sta.sta_id; 3721e829b17cSBeni Lev } 3722e829b17cSBeni Lev 3723e829b17cSBeni Lev if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3724e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3725e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) { 3726e829b17cSBeni Lev ret = iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, false); 3727e829b17cSBeni Lev goto end; 372885aeb58cSDavid Spinadel } 3729e705c121SKalle Valo 37304615fd15SEmmanuel Grumbach /* If the key_offset is not pre-assigned, we need to find a 37314615fd15SEmmanuel Grumbach * new offset to use. In normal cases, the offset is not 37324615fd15SEmmanuel Grumbach * pre-assigned, but during HW_RESTART we want to reuse the 37334615fd15SEmmanuel Grumbach * same indices, so we pass them when this function is called. 37344615fd15SEmmanuel Grumbach * 37354615fd15SEmmanuel Grumbach * In D3 entry, we need to hardcoded the indices (because the 37364615fd15SEmmanuel Grumbach * firmware hardcodes the PTK offset to 0). In this case, we 37374615fd15SEmmanuel Grumbach * need to make sure we don't overwrite the hw_key_idx in the 37384615fd15SEmmanuel Grumbach * keyconf structure, because otherwise we cannot configure 37394615fd15SEmmanuel Grumbach * the original ones back when resuming. 3740e705c121SKalle Valo */ 37414615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) { 37424615fd15SEmmanuel Grumbach key_offset = iwl_mvm_set_fw_key_idx(mvm); 37434615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) 3744e705c121SKalle Valo return -ENOSPC; 37454615fd15SEmmanuel Grumbach keyconf->hw_key_idx = key_offset; 3746e705c121SKalle Valo } 3747e705c121SKalle Valo 37484615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, key_offset, mcast); 37499c3deeb5SLuca Coelho if (ret) 3750e705c121SKalle Valo goto end; 3751e705c121SKalle Valo 3752e705c121SKalle Valo /* 3753e705c121SKalle Valo * For WEP, the same key is used for multicast and unicast. Upload it 3754e705c121SKalle Valo * again, using the same key offset, and now pointing the other one 3755e705c121SKalle Valo * to the same key slot (offset). 3756e705c121SKalle Valo * If this fails, remove the original as well. 3757e705c121SKalle Valo */ 375885aeb58cSDavid Spinadel if ((keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 375985aeb58cSDavid Spinadel keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) && 376085aeb58cSDavid Spinadel sta) { 37614615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, 37624615fd15SEmmanuel Grumbach key_offset, !mcast); 3763e705c121SKalle Valo if (ret) { 3764e705c121SKalle Valo __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 37659c3deeb5SLuca Coelho goto end; 3766e705c121SKalle Valo } 3767e705c121SKalle Valo } 3768e705c121SKalle Valo 37699c3deeb5SLuca Coelho __set_bit(key_offset, mvm->fw_key_table); 37709c3deeb5SLuca Coelho 3771e705c121SKalle Valo end: 3772e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "key: cipher=%x len=%d idx=%d sta=%pM ret=%d\n", 3773e705c121SKalle Valo keyconf->cipher, keyconf->keylen, keyconf->keyidx, 3774e705c121SKalle Valo sta ? sta->addr : zero_addr, ret); 3775e705c121SKalle Valo return ret; 3776e705c121SKalle Valo } 3777e705c121SKalle Valo 3778e705c121SKalle Valo int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, 3779e705c121SKalle Valo struct ieee80211_vif *vif, 3780e705c121SKalle Valo struct ieee80211_sta *sta, 3781e705c121SKalle Valo struct ieee80211_key_conf *keyconf) 3782e705c121SKalle Valo { 3783e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 37845f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 37850ae98812SSara Sharon u8 sta_id = IWL_MVM_INVALID_STA; 3786e705c121SKalle Valo int ret, i; 3787e705c121SKalle Valo 3788e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3789e705c121SKalle Valo 37905f7a1847SJohannes Berg /* Get the station from the mvm local station table */ 37915f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 379271793b7dSLuca Coelho if (mvm_sta) 3793cd4d23c1SIlan Peer sta_id = mvm_sta->sta_id; 379485aeb58cSDavid Spinadel else if (!sta && vif->type == NL80211_IFTYPE_AP && mcast) 379585aeb58cSDavid Spinadel sta_id = iwl_mvm_vif_from_mac80211(vif)->mcast_sta.sta_id; 379685aeb58cSDavid Spinadel 3797e705c121SKalle Valo 3798e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "mvm remove dynamic key: idx=%d sta=%d\n", 3799e705c121SKalle Valo keyconf->keyidx, sta_id); 3800e705c121SKalle Valo 3801197288d5SLuca Coelho if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 38028e160ab8SAyala Beker keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3803197288d5SLuca Coelho keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 3804e705c121SKalle Valo return iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, true); 3805e705c121SKalle Valo 3806e705c121SKalle Valo if (!__test_and_clear_bit(keyconf->hw_key_idx, mvm->fw_key_table)) { 3807e705c121SKalle Valo IWL_ERR(mvm, "offset %d not used in fw key table.\n", 3808e705c121SKalle Valo keyconf->hw_key_idx); 3809e705c121SKalle Valo return -ENOENT; 3810e705c121SKalle Valo } 3811e705c121SKalle Valo 3812e705c121SKalle Valo /* track which key was deleted last */ 3813e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3814e705c121SKalle Valo if (mvm->fw_key_deleted[i] < U8_MAX) 3815e705c121SKalle Valo mvm->fw_key_deleted[i]++; 3816e705c121SKalle Valo } 3817e705c121SKalle Valo mvm->fw_key_deleted[keyconf->hw_key_idx] = 0; 3818e705c121SKalle Valo 381985aeb58cSDavid Spinadel if (sta && !mvm_sta) { 3820e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "station non-existent, early return.\n"); 3821e705c121SKalle Valo return 0; 3822e705c121SKalle Valo } 3823e705c121SKalle Valo 3824e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 3825e705c121SKalle Valo if (ret) 3826e705c121SKalle Valo return ret; 3827e705c121SKalle Valo 3828e705c121SKalle Valo /* delete WEP key twice to get rid of (now useless) offset */ 3829e705c121SKalle Valo if (keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 3830e705c121SKalle Valo keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) 3831e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, !mcast); 3832e705c121SKalle Valo 3833e705c121SKalle Valo return ret; 3834e705c121SKalle Valo } 3835e705c121SKalle Valo 3836e705c121SKalle Valo void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, 3837e705c121SKalle Valo struct ieee80211_vif *vif, 3838e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3839e705c121SKalle Valo struct ieee80211_sta *sta, u32 iv32, 3840e705c121SKalle Valo u16 *phase1key) 3841e705c121SKalle Valo { 3842e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3843e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 38444883145aSEmmanuel Grumbach bool mfp = sta ? sta->mfp : false; 3845e705c121SKalle Valo 3846e705c121SKalle Valo rcu_read_lock(); 3847e705c121SKalle Valo 38485f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 38495f7a1847SJohannes Berg if (WARN_ON_ONCE(!mvm_sta)) 385012f17211SEmmanuel Grumbach goto unlock; 385185aeb58cSDavid Spinadel iwl_mvm_send_sta_key(mvm, mvm_sta->sta_id, keyconf, mcast, 38524883145aSEmmanuel Grumbach iv32, phase1key, CMD_ASYNC, keyconf->hw_key_idx, 38534883145aSEmmanuel Grumbach mfp); 385412f17211SEmmanuel Grumbach 385512f17211SEmmanuel Grumbach unlock: 3856e705c121SKalle Valo rcu_read_unlock(); 3857e705c121SKalle Valo } 3858e705c121SKalle Valo 3859e705c121SKalle Valo void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, 3860e705c121SKalle Valo struct ieee80211_sta *sta) 3861e705c121SKalle Valo { 3862e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3863e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3864e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3865e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3866e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_PS), 3867e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3868e705c121SKalle Valo }; 3869e705c121SKalle Valo int ret; 3870e705c121SKalle Valo 3871854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3872854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3873e705c121SKalle Valo if (ret) 3874e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3875e705c121SKalle Valo } 3876e705c121SKalle Valo 3877e705c121SKalle Valo void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, 3878e705c121SKalle Valo struct ieee80211_sta *sta, 3879e705c121SKalle Valo enum ieee80211_frame_release_type reason, 3880e705c121SKalle Valo u16 cnt, u16 tids, bool more_data, 38819a3fcf91SSara Sharon bool single_sta_queue) 3882e705c121SKalle Valo { 3883e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3884e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3885e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3886e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3887e705c121SKalle Valo .modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT, 3888e705c121SKalle Valo .sleep_tx_count = cpu_to_le16(cnt), 3889e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3890e705c121SKalle Valo }; 3891e705c121SKalle Valo int tid, ret; 3892e705c121SKalle Valo unsigned long _tids = tids; 3893e705c121SKalle Valo 3894e705c121SKalle Valo /* convert TIDs to ACs - we don't support TSPEC so that's OK 3895e705c121SKalle Valo * Note that this field is reserved and unused by firmware not 3896e705c121SKalle Valo * supporting GO uAPSD, so it's safe to always do this. 3897e705c121SKalle Valo */ 3898e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) 3899e705c121SKalle Valo cmd.awake_acs |= BIT(tid_to_ucode_ac[tid]); 3900e705c121SKalle Valo 39019a3fcf91SSara Sharon /* If we're releasing frames from aggregation or dqa queues then check 39029a3fcf91SSara Sharon * if all the queues that we're releasing frames from, combined, have: 3903e705c121SKalle Valo * - more frames than the service period, in which case more_data 3904e705c121SKalle Valo * needs to be set 3905e705c121SKalle Valo * - fewer than 'cnt' frames, in which case we need to adjust the 3906e705c121SKalle Valo * firmware command (but do that unconditionally) 3907e705c121SKalle Valo */ 39089a3fcf91SSara Sharon if (single_sta_queue) { 3909e705c121SKalle Valo int remaining = cnt; 391036be0eb6SEmmanuel Grumbach int sleep_tx_count; 3911e705c121SKalle Valo 3912e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3913e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) { 3914e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 3915e705c121SKalle Valo u16 n_queued; 3916e705c121SKalle Valo 3917e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 3918e705c121SKalle Valo 3919dd32162dSLiad Kaufman n_queued = iwl_mvm_tid_queued(mvm, tid_data); 3920e705c121SKalle Valo if (n_queued > remaining) { 3921e705c121SKalle Valo more_data = true; 3922e705c121SKalle Valo remaining = 0; 3923e705c121SKalle Valo break; 3924e705c121SKalle Valo } 3925e705c121SKalle Valo remaining -= n_queued; 3926e705c121SKalle Valo } 392736be0eb6SEmmanuel Grumbach sleep_tx_count = cnt - remaining; 392836be0eb6SEmmanuel Grumbach if (reason == IEEE80211_FRAME_RELEASE_UAPSD) 392936be0eb6SEmmanuel Grumbach mvmsta->sleep_tx_count = sleep_tx_count; 3930e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3931e705c121SKalle Valo 393236be0eb6SEmmanuel Grumbach cmd.sleep_tx_count = cpu_to_le16(sleep_tx_count); 3933e705c121SKalle Valo if (WARN_ON(cnt - remaining == 0)) { 3934e705c121SKalle Valo ieee80211_sta_eosp(sta); 3935e705c121SKalle Valo return; 3936e705c121SKalle Valo } 3937e705c121SKalle Valo } 3938e705c121SKalle Valo 3939e705c121SKalle Valo /* Note: this is ignored by firmware not supporting GO uAPSD */ 3940e705c121SKalle Valo if (more_data) 3941ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_MOREDATA; 3942e705c121SKalle Valo 3943e705c121SKalle Valo if (reason == IEEE80211_FRAME_RELEASE_PSPOLL) { 3944e705c121SKalle Valo mvmsta->next_status_eosp = true; 3945ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_PS_POLL; 3946e705c121SKalle Valo } else { 3947ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_UAPSD; 3948e705c121SKalle Valo } 3949e705c121SKalle Valo 3950156f92f2SEmmanuel Grumbach /* block the Tx queues until the FW updated the sleep Tx count */ 3951156f92f2SEmmanuel Grumbach iwl_trans_block_txq_ptrs(mvm->trans, true); 3952156f92f2SEmmanuel Grumbach 3953156f92f2SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 3954156f92f2SEmmanuel Grumbach CMD_ASYNC | CMD_WANT_ASYNC_CALLBACK, 3955854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3956e705c121SKalle Valo if (ret) 3957e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3958e705c121SKalle Valo } 3959e705c121SKalle Valo 3960e705c121SKalle Valo void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm, 3961e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 3962e705c121SKalle Valo { 3963e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 3964e705c121SKalle Valo struct iwl_mvm_eosp_notification *notif = (void *)pkt->data; 3965e705c121SKalle Valo struct ieee80211_sta *sta; 3966e705c121SKalle Valo u32 sta_id = le32_to_cpu(notif->sta_id); 3967e705c121SKalle Valo 3968be9ae34eSNathan Errera if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 3969e705c121SKalle Valo return; 3970e705c121SKalle Valo 3971e705c121SKalle Valo rcu_read_lock(); 3972e705c121SKalle Valo sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 3973e705c121SKalle Valo if (!IS_ERR_OR_NULL(sta)) 3974e705c121SKalle Valo ieee80211_sta_eosp(sta); 3975e705c121SKalle Valo rcu_read_unlock(); 3976e705c121SKalle Valo } 3977e705c121SKalle Valo 3978e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm, 3979e705c121SKalle Valo struct iwl_mvm_sta *mvmsta, bool disable) 3980e705c121SKalle Valo { 3981e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3982e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3983e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3984e705c121SKalle Valo .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 3985e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 3986e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3987e705c121SKalle Valo }; 3988e705c121SKalle Valo int ret; 3989e705c121SKalle Valo 3990854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3991854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3992e705c121SKalle Valo if (ret) 3993e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3994e705c121SKalle Valo } 3995e705c121SKalle Valo 3996e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm, 3997e705c121SKalle Valo struct ieee80211_sta *sta, 3998e705c121SKalle Valo bool disable) 3999e705c121SKalle Valo { 4000e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4001e705c121SKalle Valo 4002e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 4003e705c121SKalle Valo 4004e705c121SKalle Valo if (mvm_sta->disable_tx == disable) { 4005e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 4006e705c121SKalle Valo return; 4007e705c121SKalle Valo } 4008e705c121SKalle Valo 4009e705c121SKalle Valo mvm_sta->disable_tx = disable; 4010e705c121SKalle Valo 4011b1c6cec0SNaftali Goldstein /* 4012b1c6cec0SNaftali Goldstein * If sta PS state is handled by mac80211, tell it to start/stop 4013b1c6cec0SNaftali Goldstein * queuing tx for this station. 4014b1c6cec0SNaftali Goldstein */ 4015b1c6cec0SNaftali Goldstein if (!ieee80211_hw_check(mvm->hw, AP_LINK_PS)) 4016e705c121SKalle Valo ieee80211_sta_block_awake(mvm->hw, sta, disable); 4017e705c121SKalle Valo 4018e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvm_sta, disable); 4019e705c121SKalle Valo 4020e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 4021e705c121SKalle Valo } 4022e705c121SKalle Valo 4023ced19f26SSara Sharon static void iwl_mvm_int_sta_modify_disable_tx(struct iwl_mvm *mvm, 4024ced19f26SSara Sharon struct iwl_mvm_vif *mvmvif, 4025ced19f26SSara Sharon struct iwl_mvm_int_sta *sta, 4026ced19f26SSara Sharon bool disable) 4027ced19f26SSara Sharon { 4028ced19f26SSara Sharon u32 id = FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color); 4029ced19f26SSara Sharon struct iwl_mvm_add_sta_cmd cmd = { 4030ced19f26SSara Sharon .add_modify = STA_MODE_MODIFY, 4031ced19f26SSara Sharon .sta_id = sta->sta_id, 4032ced19f26SSara Sharon .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 4033ced19f26SSara Sharon .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 4034ced19f26SSara Sharon .mac_id_n_color = cpu_to_le32(id), 4035ced19f26SSara Sharon }; 4036ced19f26SSara Sharon int ret; 4037ced19f26SSara Sharon 4038e5d153ecSEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 4039ced19f26SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 4040ced19f26SSara Sharon if (ret) 4041ced19f26SSara Sharon IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 4042ced19f26SSara Sharon } 4043ced19f26SSara Sharon 4044e705c121SKalle Valo void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm, 4045e705c121SKalle Valo struct iwl_mvm_vif *mvmvif, 4046e705c121SKalle Valo bool disable) 4047e705c121SKalle Valo { 4048e705c121SKalle Valo struct ieee80211_sta *sta; 4049e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 4050e705c121SKalle Valo int i; 4051e705c121SKalle Valo 4052e5d153ecSEmmanuel Grumbach rcu_read_lock(); 4053e705c121SKalle Valo 4054e705c121SKalle Valo /* Block/unblock all the stations of the given mvmvif */ 4055be9ae34eSNathan Errera for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 4056e5d153ecSEmmanuel Grumbach sta = rcu_dereference(mvm->fw_id_to_mac_id[i]); 4057e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) 4058e705c121SKalle Valo continue; 4059e705c121SKalle Valo 4060e705c121SKalle Valo mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4061e705c121SKalle Valo if (mvm_sta->mac_id_n_color != 4062e705c121SKalle Valo FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)) 4063e705c121SKalle Valo continue; 4064e705c121SKalle Valo 4065e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx_ap(mvm, sta, disable); 4066e705c121SKalle Valo } 4067ced19f26SSara Sharon 4068e5d153ecSEmmanuel Grumbach rcu_read_unlock(); 4069e5d153ecSEmmanuel Grumbach 4070ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 4071ced19f26SSara Sharon return; 4072ced19f26SSara Sharon 4073ced19f26SSara Sharon /* Need to block/unblock also multicast station */ 4074ced19f26SSara Sharon if (mvmvif->mcast_sta.sta_id != IWL_MVM_INVALID_STA) 4075ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 4076ced19f26SSara Sharon &mvmvif->mcast_sta, disable); 4077ced19f26SSara Sharon 4078ced19f26SSara Sharon /* 4079ced19f26SSara Sharon * Only unblock the broadcast station (FW blocks it for immediate 4080ced19f26SSara Sharon * quiet, not the driver) 4081ced19f26SSara Sharon */ 4082ced19f26SSara Sharon if (!disable && mvmvif->bcast_sta.sta_id != IWL_MVM_INVALID_STA) 4083ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 4084ced19f26SSara Sharon &mvmvif->bcast_sta, disable); 4085e705c121SKalle Valo } 4086e705c121SKalle Valo 4087e705c121SKalle Valo void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4088e705c121SKalle Valo { 4089e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4090e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 4091e705c121SKalle Valo 4092e705c121SKalle Valo rcu_read_lock(); 4093e705c121SKalle Valo 4094e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->ap_sta_id); 4095e705c121SKalle Valo 4096ad12b231SNathan Errera if (mvmsta) 4097e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true); 4098e705c121SKalle Valo 4099e705c121SKalle Valo rcu_read_unlock(); 4100e705c121SKalle Valo } 4101dd32162dSLiad Kaufman 4102dd32162dSLiad Kaufman u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data) 4103dd32162dSLiad Kaufman { 4104dd32162dSLiad Kaufman u16 sn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 4105dd32162dSLiad Kaufman 4106dd32162dSLiad Kaufman /* 41072f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 4108dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 4109dd32162dSLiad Kaufman */ 4110286ca8ebSLuca Coelho if (mvm->trans->trans_cfg->gen2) 4111dd32162dSLiad Kaufman sn &= 0xff; 4112dd32162dSLiad Kaufman 4113dd32162dSLiad Kaufman return ieee80211_sn_sub(sn, tid_data->next_reclaimed); 4114dd32162dSLiad Kaufman } 4115be82ecd3SAvraham Stern 4116be82ecd3SAvraham Stern int iwl_mvm_add_pasn_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 4117be82ecd3SAvraham Stern struct iwl_mvm_int_sta *sta, u8 *addr, u32 cipher, 4118be82ecd3SAvraham Stern u8 *key, u32 key_len) 4119be82ecd3SAvraham Stern { 4120be82ecd3SAvraham Stern int ret; 4121be82ecd3SAvraham Stern u16 queue; 4122be82ecd3SAvraham Stern struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4123be82ecd3SAvraham Stern struct ieee80211_key_conf *keyconf; 4124be82ecd3SAvraham Stern 4125be82ecd3SAvraham Stern ret = iwl_mvm_allocate_int_sta(mvm, sta, 0, 4126be82ecd3SAvraham Stern NL80211_IFTYPE_UNSPECIFIED, 4127be82ecd3SAvraham Stern IWL_STA_LINK); 4128be82ecd3SAvraham Stern if (ret) 4129be82ecd3SAvraham Stern return ret; 4130be82ecd3SAvraham Stern 4131be82ecd3SAvraham Stern ret = iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id, mvmvif->color, 4132be82ecd3SAvraham Stern addr, sta, &queue, 4133be82ecd3SAvraham Stern IWL_MVM_TX_FIFO_BE); 4134be82ecd3SAvraham Stern if (ret) 4135be82ecd3SAvraham Stern goto out; 4136be82ecd3SAvraham Stern 4137be82ecd3SAvraham Stern keyconf = kzalloc(sizeof(*keyconf) + key_len, GFP_KERNEL); 4138be82ecd3SAvraham Stern if (!keyconf) { 4139be82ecd3SAvraham Stern ret = -ENOBUFS; 4140be82ecd3SAvraham Stern goto out; 4141be82ecd3SAvraham Stern } 4142be82ecd3SAvraham Stern 4143be82ecd3SAvraham Stern keyconf->cipher = cipher; 4144be82ecd3SAvraham Stern memcpy(keyconf->key, key, key_len); 4145be82ecd3SAvraham Stern keyconf->keylen = key_len; 4146be82ecd3SAvraham Stern 4147be82ecd3SAvraham Stern ret = iwl_mvm_send_sta_key(mvm, sta->sta_id, keyconf, false, 4148be82ecd3SAvraham Stern 0, NULL, 0, 0, true); 4149be82ecd3SAvraham Stern kfree(keyconf); 4150be82ecd3SAvraham Stern return 0; 4151be82ecd3SAvraham Stern out: 4152be82ecd3SAvraham Stern iwl_mvm_dealloc_int_sta(mvm, sta); 4153be82ecd3SAvraham Stern return ret; 4154be82ecd3SAvraham Stern } 4155ad12b231SNathan Errera 4156ad12b231SNathan Errera void iwl_mvm_cancel_channel_switch(struct iwl_mvm *mvm, 4157ad12b231SNathan Errera struct ieee80211_vif *vif, 4158ad12b231SNathan Errera u32 mac_id) 4159ad12b231SNathan Errera { 4160ad12b231SNathan Errera struct iwl_cancel_channel_switch_cmd cancel_channel_switch_cmd = { 4161ad12b231SNathan Errera .mac_id = cpu_to_le32(mac_id), 4162ad12b231SNathan Errera }; 4163ad12b231SNathan Errera int ret; 4164ad12b231SNathan Errera 4165ad12b231SNathan Errera ret = iwl_mvm_send_cmd_pdu(mvm, 4166f0c86427SJohannes Berg WIDE_ID(MAC_CONF_GROUP, CANCEL_CHANNEL_SWITCH_CMD), 4167ad12b231SNathan Errera CMD_ASYNC, 4168ad12b231SNathan Errera sizeof(cancel_channel_switch_cmd), 4169ad12b231SNathan Errera &cancel_channel_switch_cmd); 4170ad12b231SNathan Errera if (ret) 4171ad12b231SNathan Errera IWL_ERR(mvm, "Failed to cancel the channel switch\n"); 4172ad12b231SNathan Errera } 4173