18e99ea8dSJohannes Berg // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 28e99ea8dSJohannes Berg /* 38e99ea8dSJohannes Berg * Copyright (C) 2012-2015, 2018-2020 Intel Corporation 48e99ea8dSJohannes Berg * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 58e99ea8dSJohannes Berg * Copyright (C) 2016-2017 Intel Deutschland GmbH 68e99ea8dSJohannes Berg */ 7e705c121SKalle Valo #include <net/mac80211.h> 8e705c121SKalle Valo 9e705c121SKalle Valo #include "mvm.h" 10e705c121SKalle Valo #include "sta.h" 11e705c121SKalle Valo #include "rs.h" 12e705c121SKalle Valo 13854c5705SSara Sharon /* 14854c5705SSara Sharon * New version of ADD_STA_sta command added new fields at the end of the 15854c5705SSara Sharon * structure, so sending the size of the relevant API's structure is enough to 16854c5705SSara Sharon * support both API versions. 17854c5705SSara Sharon */ 18854c5705SSara Sharon static inline int iwl_mvm_add_sta_cmd_size(struct iwl_mvm *mvm) 19854c5705SSara Sharon { 20ced19f26SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) || 21ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 22ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd); 23ced19f26SSara Sharon else 24ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd_v7); 25854c5705SSara Sharon } 26854c5705SSara Sharon 27e705c121SKalle Valo static int iwl_mvm_find_free_sta_id(struct iwl_mvm *mvm, 28e705c121SKalle Valo enum nl80211_iftype iftype) 29e705c121SKalle Valo { 30e705c121SKalle Valo int sta_id; 31e705c121SKalle Valo u32 reserved_ids = 0; 32e705c121SKalle Valo 33be9ae34eSNathan Errera BUILD_BUG_ON(IWL_MVM_STATION_COUNT_MAX > 32); 34e705c121SKalle Valo WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)); 35e705c121SKalle Valo 36e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 37e705c121SKalle Valo 38e705c121SKalle Valo /* d0i3/d3 assumes the AP's sta_id (of sta vif) is 0. reserve it. */ 39e705c121SKalle Valo if (iftype != NL80211_IFTYPE_STATION) 40e705c121SKalle Valo reserved_ids = BIT(0); 41e705c121SKalle Valo 42e705c121SKalle Valo /* Don't take rcu_read_lock() since we are protected by mvm->mutex */ 43be9ae34eSNathan Errera for (sta_id = 0; sta_id < mvm->fw->ucode_capa.num_stations; sta_id++) { 44e705c121SKalle Valo if (BIT(sta_id) & reserved_ids) 45e705c121SKalle Valo continue; 46e705c121SKalle Valo 47e705c121SKalle Valo if (!rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 48e705c121SKalle Valo lockdep_is_held(&mvm->mutex))) 49e705c121SKalle Valo return sta_id; 50e705c121SKalle Valo } 510ae98812SSara Sharon return IWL_MVM_INVALID_STA; 52e705c121SKalle Valo } 53e705c121SKalle Valo 54e705c121SKalle Valo /* send station add/update command to firmware */ 55e705c121SKalle Valo int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 5624afba76SLiad Kaufman bool update, unsigned int flags) 57e705c121SKalle Valo { 58e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 59e705c121SKalle Valo struct iwl_mvm_add_sta_cmd add_sta_cmd = { 60e705c121SKalle Valo .sta_id = mvm_sta->sta_id, 61e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color), 62e705c121SKalle Valo .add_modify = update ? 1 : 0, 63e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_FAT_EN_MSK | 648addabf8SNaftali Goldstein STA_FLG_MIMO_EN_MSK | 658addabf8SNaftali Goldstein STA_FLG_RTS_MIMO_PROT), 66cf0cda19SLiad Kaufman .tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg), 67e705c121SKalle Valo }; 68e705c121SKalle Valo int ret; 69e705c121SKalle Valo u32 status; 70e705c121SKalle Valo u32 agg_size = 0, mpdu_dens = 0; 71e705c121SKalle Valo 72ced19f26SSara Sharon if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 73ced19f26SSara Sharon add_sta_cmd.station_type = mvm_sta->sta_type; 74ced19f26SSara Sharon 7524afba76SLiad Kaufman if (!update || (flags & STA_MODIFY_QUEUES)) { 76e705c121SKalle Valo memcpy(&add_sta_cmd.addr, sta->addr, ETH_ALEN); 7724afba76SLiad Kaufman 78bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) { 79bb49701bSSara Sharon add_sta_cmd.tfd_queue_msk = 80bb49701bSSara Sharon cpu_to_le32(mvm_sta->tfd_queue_msk); 81bb49701bSSara Sharon 8224afba76SLiad Kaufman if (flags & STA_MODIFY_QUEUES) 8324afba76SLiad Kaufman add_sta_cmd.modify_mask |= STA_MODIFY_QUEUES; 84bb49701bSSara Sharon } else { 85bb49701bSSara Sharon WARN_ON(flags & STA_MODIFY_QUEUES); 86bb49701bSSara Sharon } 87e705c121SKalle Valo } 88e705c121SKalle Valo 89e705c121SKalle Valo switch (sta->bandwidth) { 90e705c121SKalle Valo case IEEE80211_STA_RX_BW_160: 91e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_160MHZ); 925a2abdcaSGustavo A. R. Silva fallthrough; 93e705c121SKalle Valo case IEEE80211_STA_RX_BW_80: 94e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_80MHZ); 955a2abdcaSGustavo A. R. Silva fallthrough; 96e705c121SKalle Valo case IEEE80211_STA_RX_BW_40: 97e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_40MHZ); 985a2abdcaSGustavo A. R. Silva fallthrough; 99e705c121SKalle Valo case IEEE80211_STA_RX_BW_20: 100e705c121SKalle Valo if (sta->ht_cap.ht_supported) 101e705c121SKalle Valo add_sta_cmd.station_flags |= 102e705c121SKalle Valo cpu_to_le32(STA_FLG_FAT_EN_20MHZ); 103e705c121SKalle Valo break; 104e705c121SKalle Valo } 105e705c121SKalle Valo 106e705c121SKalle Valo switch (sta->rx_nss) { 107e705c121SKalle Valo case 1: 108e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 109e705c121SKalle Valo break; 110e705c121SKalle Valo case 2: 111e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO2); 112e705c121SKalle Valo break; 113e705c121SKalle Valo case 3 ... 8: 114e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO3); 115e705c121SKalle Valo break; 116e705c121SKalle Valo } 117e705c121SKalle Valo 118e705c121SKalle Valo switch (sta->smps_mode) { 119e705c121SKalle Valo case IEEE80211_SMPS_AUTOMATIC: 120e705c121SKalle Valo case IEEE80211_SMPS_NUM_MODES: 121e705c121SKalle Valo WARN_ON(1); 122e705c121SKalle Valo break; 123e705c121SKalle Valo case IEEE80211_SMPS_STATIC: 124e705c121SKalle Valo /* override NSS */ 125e705c121SKalle Valo add_sta_cmd.station_flags &= ~cpu_to_le32(STA_FLG_MIMO_EN_MSK); 126e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 127e705c121SKalle Valo break; 128e705c121SKalle Valo case IEEE80211_SMPS_DYNAMIC: 129e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_RTS_MIMO_PROT); 130e705c121SKalle Valo break; 131e705c121SKalle Valo case IEEE80211_SMPS_OFF: 132e705c121SKalle Valo /* nothing */ 133e705c121SKalle Valo break; 134e705c121SKalle Valo } 135e705c121SKalle Valo 136e705c121SKalle Valo if (sta->ht_cap.ht_supported) { 137e705c121SKalle Valo add_sta_cmd.station_flags_msk |= 138e705c121SKalle Valo cpu_to_le32(STA_FLG_MAX_AGG_SIZE_MSK | 139e705c121SKalle Valo STA_FLG_AGG_MPDU_DENS_MSK); 140e705c121SKalle Valo 141e705c121SKalle Valo mpdu_dens = sta->ht_cap.ampdu_density; 142e705c121SKalle Valo } 143e705c121SKalle Valo 144eae94cf8SLuca Coelho if (mvm_sta->vif->bss_conf.chandef.chan->band == NL80211_BAND_6GHZ) { 145eae94cf8SLuca Coelho add_sta_cmd.station_flags_msk |= 146eae94cf8SLuca Coelho cpu_to_le32(STA_FLG_MAX_AGG_SIZE_MSK | 147eae94cf8SLuca Coelho STA_FLG_AGG_MPDU_DENS_MSK); 148c8a2e7a2SMordechay Goodstein 149eae94cf8SLuca Coelho mpdu_dens = le16_get_bits(sta->he_6ghz_capa.capa, 150eae94cf8SLuca Coelho IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START); 151eae94cf8SLuca Coelho agg_size = le16_get_bits(sta->he_6ghz_capa.capa, 152eae94cf8SLuca Coelho IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP); 153eae94cf8SLuca Coelho } else 154e705c121SKalle Valo if (sta->vht_cap.vht_supported) { 155e705c121SKalle Valo agg_size = sta->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; 159e705c121SKalle Valo } else if (sta->ht_cap.ht_supported) { 160e705c121SKalle Valo agg_size = sta->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 */ 171c8a2e7a2SMordechay Goodstein if (sta->he_cap.has_he) 172c8a2e7a2SMordechay Goodstein agg_size += u8_get_bits(sta->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, 319cfbc6c4cSSara Sharon int queue, u8 tid, u8 flags) 32099448a8cSJohannes Berg { 32199448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 32299448a8cSJohannes Berg .scd_queue = queue, 32399448a8cSJohannes Berg .action = SCD_CFG_DISABLE_QUEUE, 32499448a8cSJohannes Berg }; 32599448a8cSJohannes Berg int ret; 32699448a8cSJohannes Berg 32799448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) { 32899448a8cSJohannes Berg iwl_trans_txq_free(mvm->trans, queue); 32999448a8cSJohannes Berg 33099448a8cSJohannes Berg return 0; 33199448a8cSJohannes Berg } 33299448a8cSJohannes Berg 333f3f240f9SJohannes Berg if (WARN_ON(mvm->queue_info[queue].tid_bitmap == 0)) 33499448a8cSJohannes Berg return 0; 33599448a8cSJohannes Berg 33699448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 33799448a8cSJohannes Berg 3381c14089eSJohannes Berg cmd.action = mvm->queue_info[queue].tid_bitmap ? 33999448a8cSJohannes Berg SCD_CFG_ENABLE_QUEUE : SCD_CFG_DISABLE_QUEUE; 34099448a8cSJohannes Berg if (cmd.action == SCD_CFG_DISABLE_QUEUE) 34199448a8cSJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_FREE; 34299448a8cSJohannes Berg 34399448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 344cfbc6c4cSSara Sharon "Disabling TXQ #%d tids=0x%x\n", 34599448a8cSJohannes Berg queue, 346cfbc6c4cSSara Sharon mvm->queue_info[queue].tid_bitmap); 34799448a8cSJohannes Berg 34899448a8cSJohannes Berg /* If the queue is still enabled - nothing left to do in this func */ 349f3f240f9SJohannes Berg if (cmd.action == SCD_CFG_ENABLE_QUEUE) 35099448a8cSJohannes Berg return 0; 35199448a8cSJohannes Berg 35299448a8cSJohannes Berg cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 35399448a8cSJohannes Berg cmd.tid = mvm->queue_info[queue].txq_tid; 35499448a8cSJohannes Berg 35599448a8cSJohannes Berg /* Make sure queue info is correct even though we overwrite it */ 356cfbc6c4cSSara Sharon WARN(mvm->queue_info[queue].tid_bitmap, 357cfbc6c4cSSara Sharon "TXQ #%d info out-of-sync - tids=0x%x\n", 358cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 35999448a8cSJohannes Berg 36099448a8cSJohannes Berg /* If we are here - the queue is freed and we can zero out these vals */ 36199448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap = 0; 362cfbc6c4cSSara Sharon 363cfbc6c4cSSara Sharon if (sta) { 364cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 365cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 366cfbc6c4cSSara Sharon 367cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 368cfbc6c4cSSara Sharon } 36999448a8cSJohannes Berg 37099448a8cSJohannes Berg /* Regardless if this is a reserved TXQ for a STA - mark it as false */ 37199448a8cSJohannes Berg mvm->queue_info[queue].reserved = false; 37299448a8cSJohannes Berg 37399448a8cSJohannes Berg iwl_trans_txq_disable(mvm->trans, queue, false); 37499448a8cSJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, flags, 37599448a8cSJohannes Berg sizeof(struct iwl_scd_txq_cfg_cmd), &cmd); 37699448a8cSJohannes Berg 37799448a8cSJohannes Berg if (ret) 37899448a8cSJohannes Berg IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n", 37999448a8cSJohannes Berg queue, ret); 38099448a8cSJohannes Berg return ret; 38199448a8cSJohannes Berg } 38299448a8cSJohannes Berg 38342db09c1SLiad Kaufman static int iwl_mvm_get_queue_agg_tids(struct iwl_mvm *mvm, int queue) 38442db09c1SLiad Kaufman { 38542db09c1SLiad Kaufman struct ieee80211_sta *sta; 38642db09c1SLiad Kaufman struct iwl_mvm_sta *mvmsta; 38742db09c1SLiad Kaufman unsigned long tid_bitmap; 38842db09c1SLiad Kaufman unsigned long agg_tids = 0; 389806911daSSharon Dvir u8 sta_id; 39042db09c1SLiad Kaufman int tid; 39142db09c1SLiad Kaufman 39242db09c1SLiad Kaufman lockdep_assert_held(&mvm->mutex); 39342db09c1SLiad Kaufman 394bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 395bb49701bSSara Sharon return -EINVAL; 396bb49701bSSara Sharon 39742db09c1SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 39842db09c1SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 39942db09c1SLiad Kaufman 40042db09c1SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 40142db09c1SLiad Kaufman lockdep_is_held(&mvm->mutex)); 40242db09c1SLiad Kaufman 40342db09c1SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 40442db09c1SLiad Kaufman return -EINVAL; 40542db09c1SLiad Kaufman 40642db09c1SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 40742db09c1SLiad Kaufman 40842db09c1SLiad Kaufman spin_lock_bh(&mvmsta->lock); 40942db09c1SLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 41042db09c1SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 41142db09c1SLiad Kaufman agg_tids |= BIT(tid); 41242db09c1SLiad Kaufman } 41342db09c1SLiad Kaufman spin_unlock_bh(&mvmsta->lock); 41442db09c1SLiad Kaufman 41542db09c1SLiad Kaufman return agg_tids; 41642db09c1SLiad Kaufman } 41742db09c1SLiad Kaufman 4189794c64fSLiad Kaufman /* 4199794c64fSLiad Kaufman * Remove a queue from a station's resources. 4209794c64fSLiad Kaufman * Note that this only marks as free. It DOESN'T delete a BA agreement, and 4219794c64fSLiad Kaufman * doesn't disable the queue 4229794c64fSLiad Kaufman */ 4239794c64fSLiad Kaufman static int iwl_mvm_remove_sta_queue_marking(struct iwl_mvm *mvm, int queue) 4249794c64fSLiad Kaufman { 4259794c64fSLiad Kaufman struct ieee80211_sta *sta; 4269794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 4279794c64fSLiad Kaufman unsigned long tid_bitmap; 4289794c64fSLiad Kaufman unsigned long disable_agg_tids = 0; 4299794c64fSLiad Kaufman u8 sta_id; 4309794c64fSLiad Kaufman int tid; 4319794c64fSLiad Kaufman 4329794c64fSLiad Kaufman lockdep_assert_held(&mvm->mutex); 4339794c64fSLiad Kaufman 434bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 435bb49701bSSara Sharon return -EINVAL; 436bb49701bSSara Sharon 4379794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 4389794c64fSLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 4399794c64fSLiad Kaufman 4409794c64fSLiad Kaufman rcu_read_lock(); 4419794c64fSLiad Kaufman 4429794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 4439794c64fSLiad Kaufman 4449794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 4459794c64fSLiad Kaufman rcu_read_unlock(); 4469794c64fSLiad Kaufman return 0; 4479794c64fSLiad Kaufman } 4489794c64fSLiad Kaufman 4499794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 4509794c64fSLiad Kaufman 4519794c64fSLiad Kaufman spin_lock_bh(&mvmsta->lock); 45242db09c1SLiad Kaufman /* Unmap MAC queues and TIDs from this queue */ 4539794c64fSLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 454cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 455cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 456cfbc6c4cSSara Sharon 4579794c64fSLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 4589794c64fSLiad Kaufman disable_agg_tids |= BIT(tid); 4596862fceeSSara Sharon mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 460cfbc6c4cSSara Sharon 461cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 4629794c64fSLiad Kaufman } 4639794c64fSLiad Kaufman 46442db09c1SLiad Kaufman mvmsta->tfd_queue_msk &= ~BIT(queue); /* Don't use this queue anymore */ 4659794c64fSLiad Kaufman spin_unlock_bh(&mvmsta->lock); 4669794c64fSLiad Kaufman 4679794c64fSLiad Kaufman rcu_read_unlock(); 4689794c64fSLiad Kaufman 46906bc6f6eSJohannes Berg /* 47006bc6f6eSJohannes Berg * The TX path may have been using this TXQ_ID from the tid_data, 47106bc6f6eSJohannes Berg * so make sure it's no longer running so that we can safely reuse 47206bc6f6eSJohannes Berg * this TXQ later. We've set all the TIDs to IWL_MVM_INVALID_QUEUE 47306bc6f6eSJohannes Berg * above, but nothing guarantees we've stopped using them. Thus, 47406bc6f6eSJohannes Berg * without this, we could get to iwl_mvm_disable_txq() and remove 47506bc6f6eSJohannes Berg * the queue while still sending frames to it. 47606bc6f6eSJohannes Berg */ 47706bc6f6eSJohannes Berg synchronize_net(); 47806bc6f6eSJohannes Berg 4799794c64fSLiad Kaufman return disable_agg_tids; 4809794c64fSLiad Kaufman } 4819794c64fSLiad Kaufman 48201796ff2SSara Sharon static int iwl_mvm_free_inactive_queue(struct iwl_mvm *mvm, int queue, 483cfbc6c4cSSara Sharon struct ieee80211_sta *old_sta, 484724fe771SJohannes Berg u8 new_sta_id) 48501796ff2SSara Sharon { 48601796ff2SSara Sharon struct iwl_mvm_sta *mvmsta; 487cfbc6c4cSSara Sharon u8 sta_id, tid; 48801796ff2SSara Sharon unsigned long disable_agg_tids = 0; 489724fe771SJohannes Berg bool same_sta; 49001796ff2SSara Sharon int ret; 49101796ff2SSara Sharon 49201796ff2SSara Sharon lockdep_assert_held(&mvm->mutex); 49301796ff2SSara Sharon 494bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 495bb49701bSSara Sharon return -EINVAL; 496bb49701bSSara Sharon 49701796ff2SSara Sharon sta_id = mvm->queue_info[queue].ra_sta_id; 49801796ff2SSara Sharon tid = mvm->queue_info[queue].txq_tid; 49901796ff2SSara Sharon 500724fe771SJohannes Berg same_sta = sta_id == new_sta_id; 501724fe771SJohannes Berg 50201796ff2SSara Sharon mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 503e3df1e4bSSharon Dvir if (WARN_ON(!mvmsta)) 504e3df1e4bSSharon Dvir return -EINVAL; 50501796ff2SSara Sharon 50601796ff2SSara Sharon disable_agg_tids = iwl_mvm_remove_sta_queue_marking(mvm, queue); 50701796ff2SSara Sharon /* Disable the queue */ 50801796ff2SSara Sharon if (disable_agg_tids) 50901796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 51001796ff2SSara Sharon disable_agg_tids, false); 51101796ff2SSara Sharon 512cfbc6c4cSSara Sharon ret = iwl_mvm_disable_txq(mvm, old_sta, queue, tid, 0); 51301796ff2SSara Sharon if (ret) { 51401796ff2SSara Sharon IWL_ERR(mvm, 51501796ff2SSara Sharon "Failed to free inactive queue %d (ret=%d)\n", 51601796ff2SSara Sharon queue, ret); 51701796ff2SSara Sharon 51801796ff2SSara Sharon return ret; 51901796ff2SSara Sharon } 52001796ff2SSara Sharon 52101796ff2SSara Sharon /* If TXQ is allocated to another STA, update removal in FW */ 52201796ff2SSara Sharon if (!same_sta) 52301796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 0, true); 52401796ff2SSara Sharon 52501796ff2SSara Sharon return 0; 52601796ff2SSara Sharon } 52701796ff2SSara Sharon 52842db09c1SLiad Kaufman static int iwl_mvm_get_shared_queue(struct iwl_mvm *mvm, 52942db09c1SLiad Kaufman unsigned long tfd_queue_mask, u8 ac) 53042db09c1SLiad Kaufman { 53142db09c1SLiad Kaufman int queue = 0; 53242db09c1SLiad Kaufman u8 ac_to_queue[IEEE80211_NUM_ACS]; 53342db09c1SLiad Kaufman int i; 53442db09c1SLiad Kaufman 53590d2d94cSJohannes Berg /* 53690d2d94cSJohannes Berg * This protects us against grabbing a queue that's being reconfigured 53790d2d94cSJohannes Berg * by the inactivity checker. 53890d2d94cSJohannes Berg */ 53990d2d94cSJohannes Berg lockdep_assert_held(&mvm->mutex); 54090d2d94cSJohannes Berg 541bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 542bb49701bSSara Sharon return -EINVAL; 54342db09c1SLiad Kaufman 54442db09c1SLiad Kaufman memset(&ac_to_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(ac_to_queue)); 54542db09c1SLiad Kaufman 54642db09c1SLiad Kaufman /* See what ACs the existing queues for this STA have */ 54742db09c1SLiad Kaufman for_each_set_bit(i, &tfd_queue_mask, IWL_MVM_DQA_MAX_DATA_QUEUE) { 54842db09c1SLiad Kaufman /* Only DATA queues can be shared */ 54942db09c1SLiad Kaufman if (i < IWL_MVM_DQA_MIN_DATA_QUEUE && 55042db09c1SLiad Kaufman i != IWL_MVM_DQA_BSS_CLIENT_QUEUE) 55142db09c1SLiad Kaufman continue; 55242db09c1SLiad Kaufman 55342db09c1SLiad Kaufman ac_to_queue[mvm->queue_info[i].mac80211_ac] = i; 55442db09c1SLiad Kaufman } 55542db09c1SLiad Kaufman 55642db09c1SLiad Kaufman /* 55742db09c1SLiad Kaufman * The queue to share is chosen only from DATA queues as follows (in 55842db09c1SLiad Kaufman * descending priority): 55942db09c1SLiad Kaufman * 1. An AC_BE queue 56042db09c1SLiad Kaufman * 2. Same AC queue 56142db09c1SLiad Kaufman * 3. Highest AC queue that is lower than new AC 56242db09c1SLiad Kaufman * 4. Any existing AC (there always is at least 1 DATA queue) 56342db09c1SLiad Kaufman */ 56442db09c1SLiad Kaufman 56542db09c1SLiad Kaufman /* Priority 1: An AC_BE queue */ 56642db09c1SLiad Kaufman if (ac_to_queue[IEEE80211_AC_BE] != IEEE80211_INVAL_HW_QUEUE) 56742db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BE]; 56842db09c1SLiad Kaufman /* Priority 2: Same AC queue */ 56942db09c1SLiad Kaufman else if (ac_to_queue[ac] != IEEE80211_INVAL_HW_QUEUE) 57042db09c1SLiad Kaufman queue = ac_to_queue[ac]; 57142db09c1SLiad Kaufman /* Priority 3a: If new AC is VO and VI exists - use VI */ 57242db09c1SLiad Kaufman else if (ac == IEEE80211_AC_VO && 57342db09c1SLiad Kaufman ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 57442db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 57542db09c1SLiad Kaufman /* Priority 3b: No BE so only AC less than the new one is BK */ 57642db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_BK] != IEEE80211_INVAL_HW_QUEUE) 57742db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BK]; 57842db09c1SLiad Kaufman /* Priority 4a: No BE nor BK - use VI if exists */ 57942db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 58042db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 58142db09c1SLiad Kaufman /* Priority 4b: No BE, BK nor VI - use VO if exists */ 58242db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VO] != IEEE80211_INVAL_HW_QUEUE) 58342db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VO]; 58442db09c1SLiad Kaufman 58542db09c1SLiad Kaufman /* Make sure queue found (or not) is legal */ 5869f9af3d7SLiad Kaufman if (!iwl_mvm_is_dqa_data_queue(mvm, queue) && 5879f9af3d7SLiad Kaufman !iwl_mvm_is_dqa_mgmt_queue(mvm, queue) && 5889f9af3d7SLiad Kaufman (queue != IWL_MVM_DQA_BSS_CLIENT_QUEUE)) { 58942db09c1SLiad Kaufman IWL_ERR(mvm, "No DATA queues available to share\n"); 5909f9af3d7SLiad Kaufman return -ENOSPC; 5919f9af3d7SLiad Kaufman } 5929f9af3d7SLiad Kaufman 59342db09c1SLiad Kaufman return queue; 59442db09c1SLiad Kaufman } 59542db09c1SLiad Kaufman 59658f2cc57SLiad Kaufman /* 5979f9af3d7SLiad Kaufman * If a given queue has a higher AC than the TID stream that is being compared 5989f9af3d7SLiad Kaufman * to, the queue needs to be redirected to the lower AC. This function does that 59958f2cc57SLiad Kaufman * in such a case, otherwise - if no redirection required - it does nothing, 60058f2cc57SLiad Kaufman * unless the %force param is true. 60158f2cc57SLiad Kaufman */ 602cfbc6c4cSSara Sharon static int iwl_mvm_redirect_queue(struct iwl_mvm *mvm, int queue, int tid, 60358f2cc57SLiad Kaufman int ac, int ssn, unsigned int wdg_timeout, 604cfbc6c4cSSara Sharon bool force, struct iwl_mvm_txq *txq) 60558f2cc57SLiad Kaufman { 60658f2cc57SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 60758f2cc57SLiad Kaufman .scd_queue = queue, 608f7c692deSLiad Kaufman .action = SCD_CFG_DISABLE_QUEUE, 60958f2cc57SLiad Kaufman }; 61058f2cc57SLiad Kaufman bool shared_queue; 61158f2cc57SLiad Kaufman int ret; 61258f2cc57SLiad Kaufman 613bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 614bb49701bSSara Sharon return -EINVAL; 615bb49701bSSara Sharon 61658f2cc57SLiad Kaufman /* 61758f2cc57SLiad Kaufman * If the AC is lower than current one - FIFO needs to be redirected to 61858f2cc57SLiad Kaufman * the lowest one of the streams in the queue. Check if this is needed 61958f2cc57SLiad Kaufman * here. 62058f2cc57SLiad Kaufman * Notice that the enum ieee80211_ac_numbers is "flipped", so BK is with 62158f2cc57SLiad Kaufman * value 3 and VO with value 0, so to check if ac X is lower than ac Y 62258f2cc57SLiad Kaufman * we need to check if the numerical value of X is LARGER than of Y. 62358f2cc57SLiad Kaufman */ 62458f2cc57SLiad Kaufman if (ac <= mvm->queue_info[queue].mac80211_ac && !force) { 62558f2cc57SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 62658f2cc57SLiad Kaufman "No redirection needed on TXQ #%d\n", 62758f2cc57SLiad Kaufman queue); 62858f2cc57SLiad Kaufman return 0; 62958f2cc57SLiad Kaufman } 63058f2cc57SLiad Kaufman 63158f2cc57SLiad Kaufman cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 63258f2cc57SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[mvm->queue_info[queue].mac80211_ac]; 633edbe961cSLiad Kaufman cmd.tid = mvm->queue_info[queue].txq_tid; 6341c14089eSJohannes Berg shared_queue = hweight16(mvm->queue_info[queue].tid_bitmap) > 1; 63558f2cc57SLiad Kaufman 6369f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Redirecting TXQ #%d to FIFO #%d\n", 63758f2cc57SLiad Kaufman queue, iwl_mvm_ac_to_tx_fifo[ac]); 63858f2cc57SLiad Kaufman 639cfbc6c4cSSara Sharon /* Stop the queue and wait for it to empty */ 640cfbc6c4cSSara Sharon txq->stopped = true; 641cfbc6c4cSSara Sharon 642a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(queue)); 64358f2cc57SLiad Kaufman if (ret) { 64458f2cc57SLiad Kaufman IWL_ERR(mvm, "Error draining queue %d before reconfig\n", 64558f2cc57SLiad Kaufman queue); 64658f2cc57SLiad Kaufman ret = -EIO; 64758f2cc57SLiad Kaufman goto out; 64858f2cc57SLiad Kaufman } 64958f2cc57SLiad Kaufman 65058f2cc57SLiad Kaufman /* Before redirecting the queue we need to de-activate it */ 65158f2cc57SLiad Kaufman iwl_trans_txq_disable(mvm->trans, queue, false); 65258f2cc57SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 65358f2cc57SLiad Kaufman if (ret) 65458f2cc57SLiad Kaufman IWL_ERR(mvm, "Failed SCD disable TXQ %d (ret=%d)\n", queue, 65558f2cc57SLiad Kaufman ret); 65658f2cc57SLiad Kaufman 65758f2cc57SLiad Kaufman /* Make sure the SCD wrptr is correctly set before reconfiguring */ 658ca3b9c6bSSara Sharon iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, wdg_timeout); 65958f2cc57SLiad Kaufman 660edbe961cSLiad Kaufman /* Update the TID "owner" of the queue */ 661edbe961cSLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 662edbe961cSLiad Kaufman 66358f2cc57SLiad Kaufman /* TODO: Work-around SCD bug when moving back by multiples of 0x40 */ 66458f2cc57SLiad Kaufman 66558f2cc57SLiad Kaufman /* Redirect to lower AC */ 66658f2cc57SLiad Kaufman iwl_mvm_reconfig_scd(mvm, queue, iwl_mvm_ac_to_tx_fifo[ac], 6670ec9257bSSara Sharon cmd.sta_id, tid, IWL_FRAME_LIMIT, ssn); 66858f2cc57SLiad Kaufman 66958f2cc57SLiad Kaufman /* Update AC marking of the queue */ 67058f2cc57SLiad Kaufman mvm->queue_info[queue].mac80211_ac = ac; 67158f2cc57SLiad Kaufman 67258f2cc57SLiad Kaufman /* 67358f2cc57SLiad Kaufman * Mark queue as shared in transport if shared 67458f2cc57SLiad Kaufman * Note this has to be done after queue enablement because enablement 67558f2cc57SLiad Kaufman * can also set this value, and there is no indication there to shared 67658f2cc57SLiad Kaufman * queues 67758f2cc57SLiad Kaufman */ 67858f2cc57SLiad Kaufman if (shared_queue) 67958f2cc57SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 68058f2cc57SLiad Kaufman 68158f2cc57SLiad Kaufman out: 682cfbc6c4cSSara Sharon /* Continue using the queue */ 683cfbc6c4cSSara Sharon txq->stopped = false; 68458f2cc57SLiad Kaufman 68558f2cc57SLiad Kaufman return ret; 68658f2cc57SLiad Kaufman } 68758f2cc57SLiad Kaufman 68899448a8cSJohannes Berg static int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 sta_id, 68999448a8cSJohannes Berg u8 minq, u8 maxq) 69099448a8cSJohannes Berg { 69199448a8cSJohannes Berg int i; 69299448a8cSJohannes Berg 693f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 69499448a8cSJohannes Berg 695e5b72e3bSJohannes Berg if (WARN(maxq >= mvm->trans->trans_cfg->base_params->num_of_queues, 696e5b72e3bSJohannes Berg "max queue %d >= num_of_queues (%d)", maxq, 697e5b72e3bSJohannes Berg mvm->trans->trans_cfg->base_params->num_of_queues)) 698e5b72e3bSJohannes Berg maxq = mvm->trans->trans_cfg->base_params->num_of_queues - 1; 699e5b72e3bSJohannes Berg 70099448a8cSJohannes Berg /* This should not be hit with new TX path */ 70199448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 70299448a8cSJohannes Berg return -ENOSPC; 70399448a8cSJohannes Berg 70499448a8cSJohannes Berg /* Start by looking for a free queue */ 70599448a8cSJohannes Berg for (i = minq; i <= maxq; i++) 7061c14089eSJohannes Berg if (mvm->queue_info[i].tid_bitmap == 0 && 70799448a8cSJohannes Berg mvm->queue_info[i].status == IWL_MVM_QUEUE_FREE) 70899448a8cSJohannes Berg return i; 70999448a8cSJohannes Berg 71099448a8cSJohannes Berg return -ENOSPC; 71199448a8cSJohannes Berg } 71299448a8cSJohannes Berg 713cfbc6c4cSSara Sharon static int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm, 71499448a8cSJohannes Berg u8 sta_id, u8 tid, unsigned int timeout) 71599448a8cSJohannes Berg { 7169a16ee0cSShaul Triebitz int queue, size = max_t(u32, IWL_DEFAULT_QUEUE_SIZE, 7179a16ee0cSShaul Triebitz mvm->trans->cfg->min_256_ba_txq_size); 71899448a8cSJohannes Berg 71999448a8cSJohannes Berg if (tid == IWL_MAX_TID_COUNT) { 72099448a8cSJohannes Berg tid = IWL_MGMT_TID; 721ff911dcaSShaul Triebitz size = max_t(u32, IWL_MGMT_QUEUE_SIZE, 722ff911dcaSShaul Triebitz mvm->trans->cfg->min_txq_size); 72399448a8cSJohannes Berg } 72499448a8cSJohannes Berg 72592f78d4bSJohannes Berg do { 72692f78d4bSJohannes Berg __le16 enable = cpu_to_le16(TX_QUEUE_CFG_ENABLE_QUEUE); 72792f78d4bSJohannes Berg 72892f78d4bSJohannes Berg queue = iwl_trans_txq_alloc(mvm->trans, enable, 72992f78d4bSJohannes Berg sta_id, tid, SCD_QUEUE_CFG, 73092f78d4bSJohannes Berg size, timeout); 73192f78d4bSJohannes Berg 73292f78d4bSJohannes Berg if (queue < 0) 73399448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 73492f78d4bSJohannes Berg "Failed allocating TXQ of size %d for sta %d tid %d, ret: %d\n", 73592f78d4bSJohannes Berg size, sta_id, tid, queue); 73692f78d4bSJohannes Berg size /= 2; 73792f78d4bSJohannes Berg } while (queue < 0 && size >= 16); 73892f78d4bSJohannes Berg 73992f78d4bSJohannes Berg if (queue < 0) 74099448a8cSJohannes Berg return queue; 74199448a8cSJohannes Berg 74299448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Enabling TXQ #%d for sta %d tid %d\n", 74399448a8cSJohannes Berg queue, sta_id, tid); 74499448a8cSJohannes Berg 74599448a8cSJohannes Berg return queue; 74699448a8cSJohannes Berg } 74799448a8cSJohannes Berg 748310181ecSSara Sharon static int iwl_mvm_sta_alloc_queue_tvqm(struct iwl_mvm *mvm, 749310181ecSSara Sharon struct ieee80211_sta *sta, u8 ac, 750310181ecSSara Sharon int tid) 751310181ecSSara Sharon { 752310181ecSSara Sharon struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 753cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 754cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 755310181ecSSara Sharon unsigned int wdg_timeout = 756310181ecSSara Sharon iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 757310181ecSSara Sharon int queue = -1; 758310181ecSSara Sharon 759310181ecSSara Sharon lockdep_assert_held(&mvm->mutex); 760310181ecSSara Sharon 761310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 762310181ecSSara Sharon "Allocating queue for sta %d on tid %d\n", 763310181ecSSara Sharon mvmsta->sta_id, tid); 764cfbc6c4cSSara Sharon queue = iwl_mvm_tvqm_enable_txq(mvm, mvmsta->sta_id, tid, wdg_timeout); 765310181ecSSara Sharon if (queue < 0) 766310181ecSSara Sharon return queue; 767310181ecSSara Sharon 768cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 769cfbc6c4cSSara Sharon mvm->tvqm_info[queue].txq_tid = tid; 770cfbc6c4cSSara Sharon mvm->tvqm_info[queue].sta_id = mvmsta->sta_id; 771cfbc6c4cSSara Sharon 772310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, "Allocated queue is %d\n", queue); 773310181ecSSara Sharon 774310181ecSSara Sharon spin_lock_bh(&mvmsta->lock); 775310181ecSSara Sharon mvmsta->tid_data[tid].txq_id = queue; 776310181ecSSara Sharon spin_unlock_bh(&mvmsta->lock); 777310181ecSSara Sharon 778310181ecSSara Sharon return 0; 779310181ecSSara Sharon } 780310181ecSSara Sharon 781cfbc6c4cSSara Sharon static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, 782cfbc6c4cSSara Sharon struct ieee80211_sta *sta, 783cfbc6c4cSSara Sharon int queue, u8 sta_id, u8 tid) 78499448a8cSJohannes Berg { 78599448a8cSJohannes Berg bool enable_queue = true; 78699448a8cSJohannes Berg 78799448a8cSJohannes Berg /* Make sure this TID isn't already enabled */ 78899448a8cSJohannes Berg if (mvm->queue_info[queue].tid_bitmap & BIT(tid)) { 78999448a8cSJohannes Berg IWL_ERR(mvm, "Trying to enable TXQ %d with existing TID %d\n", 79099448a8cSJohannes Berg queue, tid); 79199448a8cSJohannes Berg return false; 79299448a8cSJohannes Berg } 79399448a8cSJohannes Berg 79499448a8cSJohannes Berg /* Update mappings and refcounts */ 7951c14089eSJohannes Berg if (mvm->queue_info[queue].tid_bitmap) 79699448a8cSJohannes Berg enable_queue = false; 79799448a8cSJohannes Berg 79899448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap |= BIT(tid); 79999448a8cSJohannes Berg mvm->queue_info[queue].ra_sta_id = sta_id; 80099448a8cSJohannes Berg 80199448a8cSJohannes Berg if (enable_queue) { 80299448a8cSJohannes Berg if (tid != IWL_MAX_TID_COUNT) 80399448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = 80499448a8cSJohannes Berg tid_to_mac80211_ac[tid]; 80599448a8cSJohannes Berg else 80699448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = IEEE80211_AC_VO; 80799448a8cSJohannes Berg 80899448a8cSJohannes Berg mvm->queue_info[queue].txq_tid = tid; 80999448a8cSJohannes Berg } 81099448a8cSJohannes Berg 811cfbc6c4cSSara Sharon if (sta) { 812cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 813cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 814cfbc6c4cSSara Sharon 815cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 816cfbc6c4cSSara Sharon } 817cfbc6c4cSSara Sharon 81899448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 819cfbc6c4cSSara Sharon "Enabling TXQ #%d tids=0x%x\n", 820cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 82199448a8cSJohannes Berg 82299448a8cSJohannes Berg return enable_queue; 82399448a8cSJohannes Berg } 82499448a8cSJohannes Berg 825cfbc6c4cSSara Sharon static bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 826cfbc6c4cSSara Sharon int queue, u16 ssn, 82799448a8cSJohannes Berg const struct iwl_trans_txq_scd_cfg *cfg, 82899448a8cSJohannes Berg unsigned int wdg_timeout) 82999448a8cSJohannes Berg { 83099448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 83199448a8cSJohannes Berg .scd_queue = queue, 83299448a8cSJohannes Berg .action = SCD_CFG_ENABLE_QUEUE, 83399448a8cSJohannes Berg .window = cfg->frame_limit, 83499448a8cSJohannes Berg .sta_id = cfg->sta_id, 83599448a8cSJohannes Berg .ssn = cpu_to_le16(ssn), 83699448a8cSJohannes Berg .tx_fifo = cfg->fifo, 83799448a8cSJohannes Berg .aggregate = cfg->aggregate, 83899448a8cSJohannes Berg .tid = cfg->tid, 83999448a8cSJohannes Berg }; 84099448a8cSJohannes Berg bool inc_ssn; 84199448a8cSJohannes Berg 84299448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 84399448a8cSJohannes Berg return false; 84499448a8cSJohannes Berg 84599448a8cSJohannes Berg /* Send the enabling command if we need to */ 846cfbc6c4cSSara Sharon if (!iwl_mvm_update_txq_mapping(mvm, sta, queue, cfg->sta_id, cfg->tid)) 84799448a8cSJohannes Berg return false; 84899448a8cSJohannes Berg 84999448a8cSJohannes Berg inc_ssn = iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, 85099448a8cSJohannes Berg NULL, wdg_timeout); 85199448a8cSJohannes Berg if (inc_ssn) 85299448a8cSJohannes Berg le16_add_cpu(&cmd.ssn, 1); 85399448a8cSJohannes Berg 85499448a8cSJohannes Berg WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd), 85599448a8cSJohannes Berg "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo); 85699448a8cSJohannes Berg 85799448a8cSJohannes Berg return inc_ssn; 85899448a8cSJohannes Berg } 85999448a8cSJohannes Berg 860b3a87f11SJohannes Berg static void iwl_mvm_change_queue_tid(struct iwl_mvm *mvm, int queue) 86119aefa45SLiad Kaufman { 86219aefa45SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 86319aefa45SLiad Kaufman .scd_queue = queue, 86419aefa45SLiad Kaufman .action = SCD_CFG_UPDATE_QUEUE_TID, 86519aefa45SLiad Kaufman }; 86619aefa45SLiad Kaufman int tid; 86719aefa45SLiad Kaufman unsigned long tid_bitmap; 86819aefa45SLiad Kaufman int ret; 86919aefa45SLiad Kaufman 87019aefa45SLiad Kaufman lockdep_assert_held(&mvm->mutex); 87119aefa45SLiad Kaufman 872bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 873bb49701bSSara Sharon return; 874bb49701bSSara Sharon 87519aefa45SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 87619aefa45SLiad Kaufman 87719aefa45SLiad Kaufman if (WARN(!tid_bitmap, "TXQ %d has no tids assigned to it\n", queue)) 87819aefa45SLiad Kaufman return; 87919aefa45SLiad Kaufman 88019aefa45SLiad Kaufman /* Find any TID for queue */ 88119aefa45SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 88219aefa45SLiad Kaufman cmd.tid = tid; 88319aefa45SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 88419aefa45SLiad Kaufman 88519aefa45SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 886341ca402SLiad Kaufman if (ret) { 88719aefa45SLiad Kaufman IWL_ERR(mvm, "Failed to update owner of TXQ %d (ret=%d)\n", 88819aefa45SLiad Kaufman queue, ret); 889341ca402SLiad Kaufman return; 890341ca402SLiad Kaufman } 891341ca402SLiad Kaufman 892341ca402SLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 89319aefa45SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Changed TXQ %d ownership to tid %d\n", 89419aefa45SLiad Kaufman queue, tid); 89519aefa45SLiad Kaufman } 89619aefa45SLiad Kaufman 8979f9af3d7SLiad Kaufman static void iwl_mvm_unshare_queue(struct iwl_mvm *mvm, int queue) 8989f9af3d7SLiad Kaufman { 8999f9af3d7SLiad Kaufman struct ieee80211_sta *sta; 9009f9af3d7SLiad Kaufman struct iwl_mvm_sta *mvmsta; 901806911daSSharon Dvir u8 sta_id; 9029f9af3d7SLiad Kaufman int tid = -1; 9039f9af3d7SLiad Kaufman unsigned long tid_bitmap; 9049f9af3d7SLiad Kaufman unsigned int wdg_timeout; 9059f9af3d7SLiad Kaufman int ssn; 9069f9af3d7SLiad Kaufman int ret = true; 9079f9af3d7SLiad Kaufman 908bb49701bSSara Sharon /* queue sharing is disabled on new TX path */ 909bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 910bb49701bSSara Sharon return; 911bb49701bSSara Sharon 9129f9af3d7SLiad Kaufman lockdep_assert_held(&mvm->mutex); 9139f9af3d7SLiad Kaufman 9149f9af3d7SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 9159f9af3d7SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 9169f9af3d7SLiad Kaufman 9179f9af3d7SLiad Kaufman /* Find TID for queue, and make sure it is the only one on the queue */ 9189f9af3d7SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 9199f9af3d7SLiad Kaufman if (tid_bitmap != BIT(tid)) { 9209f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to unshare q %d, active tids=0x%lx\n", 9219f9af3d7SLiad Kaufman queue, tid_bitmap); 9229f9af3d7SLiad Kaufman return; 9239f9af3d7SLiad Kaufman } 9249f9af3d7SLiad Kaufman 9259f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Unsharing TXQ %d, keeping tid %d\n", queue, 9269f9af3d7SLiad Kaufman tid); 9279f9af3d7SLiad Kaufman 9289f9af3d7SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 9299f9af3d7SLiad Kaufman lockdep_is_held(&mvm->mutex)); 9309f9af3d7SLiad Kaufman 9319f9af3d7SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 9329f9af3d7SLiad Kaufman return; 9339f9af3d7SLiad Kaufman 9349f9af3d7SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 9359f9af3d7SLiad Kaufman wdg_timeout = iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 9369f9af3d7SLiad Kaufman 9379f9af3d7SLiad Kaufman ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 9389f9af3d7SLiad Kaufman 939cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, 9409f9af3d7SLiad Kaufman tid_to_mac80211_ac[tid], ssn, 941cfbc6c4cSSara Sharon wdg_timeout, true, 942cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 9439f9af3d7SLiad Kaufman if (ret) { 9449f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to redirect TXQ %d\n", queue); 9459f9af3d7SLiad Kaufman return; 9469f9af3d7SLiad Kaufman } 9479f9af3d7SLiad Kaufman 9489f9af3d7SLiad Kaufman /* If aggs should be turned back on - do it */ 9499f9af3d7SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) { 9509cd70e80SEmmanuel Grumbach struct iwl_mvm_add_sta_cmd cmd = {0}; 9519f9af3d7SLiad Kaufman 9529f9af3d7SLiad Kaufman mvmsta->tid_disable_agg &= ~BIT(tid); 9539f9af3d7SLiad Kaufman 9549f9af3d7SLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 9559f9af3d7SLiad Kaufman cmd.sta_id = mvmsta->sta_id; 9569f9af3d7SLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 9579f9af3d7SLiad Kaufman cmd.modify_mask = STA_MODIFY_TID_DISABLE_TX; 9589f9af3d7SLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 9599f9af3d7SLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 9609f9af3d7SLiad Kaufman 9619f9af3d7SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 9629f9af3d7SLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), &cmd); 9639f9af3d7SLiad Kaufman if (!ret) { 9649f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 9659f9af3d7SLiad Kaufman "TXQ #%d is now aggregated again\n", 9669f9af3d7SLiad Kaufman queue); 9679f9af3d7SLiad Kaufman 9689f9af3d7SLiad Kaufman /* Mark queue intenally as aggregating again */ 9699f9af3d7SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, false); 9709f9af3d7SLiad Kaufman } 9719f9af3d7SLiad Kaufman } 9729f9af3d7SLiad Kaufman 9739f9af3d7SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 9749f9af3d7SLiad Kaufman } 9759f9af3d7SLiad Kaufman 97699448a8cSJohannes Berg /* 97799448a8cSJohannes Berg * Remove inactive TIDs of a given queue. 97899448a8cSJohannes Berg * If all queue TIDs are inactive - mark the queue as inactive 97999448a8cSJohannes Berg * If only some the queue TIDs are inactive - unmap them from the queue 980724fe771SJohannes Berg * 981724fe771SJohannes Berg * Returns %true if all TIDs were removed and the queue could be reused. 98299448a8cSJohannes Berg */ 983724fe771SJohannes Berg static bool iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm, 98499448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta, int queue, 98590d2d94cSJohannes Berg unsigned long tid_bitmap, 986b3a87f11SJohannes Berg unsigned long *unshare_queues, 987b3a87f11SJohannes Berg unsigned long *changetid_queues) 98899448a8cSJohannes Berg { 98999448a8cSJohannes Berg int tid; 99099448a8cSJohannes Berg 99199448a8cSJohannes Berg lockdep_assert_held(&mvmsta->lock); 992f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 99399448a8cSJohannes Berg 99499448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 995724fe771SJohannes Berg return false; 99699448a8cSJohannes Berg 99799448a8cSJohannes Berg /* Go over all non-active TIDs, incl. IWL_MAX_TID_COUNT (for mgmt) */ 99899448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 99999448a8cSJohannes Berg /* If some TFDs are still queued - don't mark TID as inactive */ 100099448a8cSJohannes Berg if (iwl_mvm_tid_queued(mvm, &mvmsta->tid_data[tid])) 100199448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 100299448a8cSJohannes Berg 100399448a8cSJohannes Berg /* Don't mark as inactive any TID that has an active BA */ 100499448a8cSJohannes Berg if (mvmsta->tid_data[tid].state != IWL_AGG_OFF) 100599448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 100699448a8cSJohannes Berg } 100799448a8cSJohannes Berg 1008724fe771SJohannes Berg /* If all TIDs in the queue are inactive - return it can be reused */ 100999448a8cSJohannes Berg if (tid_bitmap == mvm->queue_info[queue].tid_bitmap) { 1010724fe771SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Queue %d is inactive\n", queue); 1011724fe771SJohannes Berg return true; 101299448a8cSJohannes Berg } 101399448a8cSJohannes Berg 101499448a8cSJohannes Berg /* 101599448a8cSJohannes Berg * If we are here, this is a shared queue and not all TIDs timed-out. 101699448a8cSJohannes Berg * Remove the ones that did. 101799448a8cSJohannes Berg */ 101899448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1019b3a87f11SJohannes Berg u16 tid_bitmap; 102099448a8cSJohannes Berg 102199448a8cSJohannes Berg mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 102299448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 102399448a8cSJohannes Berg 1024b3a87f11SJohannes Berg tid_bitmap = mvm->queue_info[queue].tid_bitmap; 1025b3a87f11SJohannes Berg 1026b3a87f11SJohannes Berg /* 1027b3a87f11SJohannes Berg * We need to take into account a situation in which a TXQ was 1028b3a87f11SJohannes Berg * allocated to TID x, and then turned shared by adding TIDs y 1029b3a87f11SJohannes Berg * and z. If TID x becomes inactive and is removed from the TXQ, 1030b3a87f11SJohannes Berg * ownership must be given to one of the remaining TIDs. 1031b3a87f11SJohannes Berg * This is mainly because if TID x continues - a new queue can't 1032b3a87f11SJohannes Berg * be allocated for it as long as it is an owner of another TXQ. 1033b3a87f11SJohannes Berg * 1034b3a87f11SJohannes Berg * Mark this queue in the right bitmap, we'll send the command 1035b3a87f11SJohannes Berg * to the firmware later. 1036b3a87f11SJohannes Berg */ 1037b3a87f11SJohannes Berg if (!(tid_bitmap & BIT(mvm->queue_info[queue].txq_tid))) 1038b3a87f11SJohannes Berg set_bit(queue, changetid_queues); 1039b3a87f11SJohannes Berg 104099448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 104199448a8cSJohannes Berg "Removing inactive TID %d from shared Q:%d\n", 104299448a8cSJohannes Berg tid, queue); 104399448a8cSJohannes Berg } 104499448a8cSJohannes Berg 104599448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 104699448a8cSJohannes Berg "TXQ #%d left with tid bitmap 0x%x\n", queue, 104799448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap); 104899448a8cSJohannes Berg 104999448a8cSJohannes Berg /* 105099448a8cSJohannes Berg * There may be different TIDs with the same mac queues, so make 105199448a8cSJohannes Berg * sure all TIDs have existing corresponding mac queues enabled 105299448a8cSJohannes Berg */ 105399448a8cSJohannes Berg tid_bitmap = mvm->queue_info[queue].tid_bitmap; 105499448a8cSJohannes Berg 105599448a8cSJohannes Berg /* If the queue is marked as shared - "unshare" it */ 10561c14089eSJohannes Berg if (hweight16(mvm->queue_info[queue].tid_bitmap) == 1 && 105799448a8cSJohannes Berg mvm->queue_info[queue].status == IWL_MVM_QUEUE_SHARED) { 105899448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Marking Q:%d for reconfig\n", 105999448a8cSJohannes Berg queue); 106090d2d94cSJohannes Berg set_bit(queue, unshare_queues); 106199448a8cSJohannes Berg } 1062724fe771SJohannes Berg 1063724fe771SJohannes Berg return false; 106499448a8cSJohannes Berg } 106599448a8cSJohannes Berg 1066724fe771SJohannes Berg /* 1067724fe771SJohannes Berg * Check for inactivity - this includes checking if any queue 1068724fe771SJohannes Berg * can be unshared and finding one (and only one) that can be 1069724fe771SJohannes Berg * reused. 1070724fe771SJohannes Berg * This function is also invoked as a sort of clean-up task, 1071724fe771SJohannes Berg * in which case @alloc_for_sta is IWL_MVM_INVALID_STA. 1072724fe771SJohannes Berg * 1073724fe771SJohannes Berg * Returns the queue number, or -ENOSPC. 1074724fe771SJohannes Berg */ 1075724fe771SJohannes Berg static int iwl_mvm_inactivity_check(struct iwl_mvm *mvm, u8 alloc_for_sta) 107699448a8cSJohannes Berg { 107799448a8cSJohannes Berg unsigned long now = jiffies; 107890d2d94cSJohannes Berg unsigned long unshare_queues = 0; 1079b3a87f11SJohannes Berg unsigned long changetid_queues = 0; 1080724fe771SJohannes Berg int i, ret, free_queue = -ENOSPC; 1081cfbc6c4cSSara Sharon struct ieee80211_sta *queue_owner = NULL; 108299448a8cSJohannes Berg 1083df2a2245SJohannes Berg lockdep_assert_held(&mvm->mutex); 1084df2a2245SJohannes Berg 108599448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1086724fe771SJohannes Berg return -ENOSPC; 108799448a8cSJohannes Berg 108899448a8cSJohannes Berg rcu_read_lock(); 108999448a8cSJohannes Berg 1090459ab045SJohannes Berg /* we skip the CMD queue below by starting at 1 */ 1091459ab045SJohannes Berg BUILD_BUG_ON(IWL_MVM_DQA_CMD_QUEUE != 0); 1092459ab045SJohannes Berg 1093459ab045SJohannes Berg for (i = 1; i < IWL_MAX_HW_QUEUES; i++) { 109499448a8cSJohannes Berg struct ieee80211_sta *sta; 109599448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta; 109699448a8cSJohannes Berg u8 sta_id; 109799448a8cSJohannes Berg int tid; 109899448a8cSJohannes Berg unsigned long inactive_tid_bitmap = 0; 109999448a8cSJohannes Berg unsigned long queue_tid_bitmap; 110099448a8cSJohannes Berg 110199448a8cSJohannes Berg queue_tid_bitmap = mvm->queue_info[i].tid_bitmap; 1102459ab045SJohannes Berg if (!queue_tid_bitmap) 1103459ab045SJohannes Berg continue; 110499448a8cSJohannes Berg 110599448a8cSJohannes Berg /* If TXQ isn't in active use anyway - nothing to do here... */ 110699448a8cSJohannes Berg if (mvm->queue_info[i].status != IWL_MVM_QUEUE_READY && 1107459ab045SJohannes Berg mvm->queue_info[i].status != IWL_MVM_QUEUE_SHARED) 110899448a8cSJohannes Berg continue; 110999448a8cSJohannes Berg 111099448a8cSJohannes Berg /* Check to see if there are inactive TIDs on this queue */ 111199448a8cSJohannes Berg for_each_set_bit(tid, &queue_tid_bitmap, 111299448a8cSJohannes Berg IWL_MAX_TID_COUNT + 1) { 111399448a8cSJohannes Berg if (time_after(mvm->queue_info[i].last_frame_time[tid] + 111499448a8cSJohannes Berg IWL_MVM_DQA_QUEUE_TIMEOUT, now)) 111599448a8cSJohannes Berg continue; 111699448a8cSJohannes Berg 111799448a8cSJohannes Berg inactive_tid_bitmap |= BIT(tid); 111899448a8cSJohannes Berg } 111999448a8cSJohannes Berg 112099448a8cSJohannes Berg /* If all TIDs are active - finish check on this queue */ 112199448a8cSJohannes Berg if (!inactive_tid_bitmap) 112299448a8cSJohannes Berg continue; 112399448a8cSJohannes Berg 112499448a8cSJohannes Berg /* 112599448a8cSJohannes Berg * If we are here - the queue hadn't been served recently and is 112699448a8cSJohannes Berg * in use 112799448a8cSJohannes Berg */ 112899448a8cSJohannes Berg 112999448a8cSJohannes Berg sta_id = mvm->queue_info[i].ra_sta_id; 113099448a8cSJohannes Berg sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 113199448a8cSJohannes Berg 113299448a8cSJohannes Berg /* 113399448a8cSJohannes Berg * If the STA doesn't exist anymore, it isn't an error. It could 113499448a8cSJohannes Berg * be that it was removed since getting the queues, and in this 113599448a8cSJohannes Berg * case it should've inactivated its queues anyway. 113699448a8cSJohannes Berg */ 113799448a8cSJohannes Berg if (IS_ERR_OR_NULL(sta)) 113899448a8cSJohannes Berg continue; 113999448a8cSJohannes Berg 114099448a8cSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 114199448a8cSJohannes Berg 1142f3f240f9SJohannes Berg spin_lock_bh(&mvmsta->lock); 1143724fe771SJohannes Berg ret = iwl_mvm_remove_inactive_tids(mvm, mvmsta, i, 114490d2d94cSJohannes Berg inactive_tid_bitmap, 1145b3a87f11SJohannes Berg &unshare_queues, 1146b3a87f11SJohannes Berg &changetid_queues); 1147e6d419f9SJohannes Berg if (ret && free_queue < 0) { 1148cfbc6c4cSSara Sharon queue_owner = sta; 1149e6d419f9SJohannes Berg free_queue = i; 1150cfbc6c4cSSara Sharon } 1151459ab045SJohannes Berg /* only unlock sta lock - we still need the queue info lock */ 1152f3f240f9SJohannes Berg spin_unlock_bh(&mvmsta->lock); 115399448a8cSJohannes Berg } 115499448a8cSJohannes Berg 1155df2a2245SJohannes Berg 1156df2a2245SJohannes Berg /* Reconfigure queues requiring reconfiguation */ 115790d2d94cSJohannes Berg for_each_set_bit(i, &unshare_queues, IWL_MAX_HW_QUEUES) 115890d2d94cSJohannes Berg iwl_mvm_unshare_queue(mvm, i); 1159b3a87f11SJohannes Berg for_each_set_bit(i, &changetid_queues, IWL_MAX_HW_QUEUES) 1160b3a87f11SJohannes Berg iwl_mvm_change_queue_tid(mvm, i); 1161724fe771SJohannes Berg 1162fbb1461aSJohannes Berg rcu_read_unlock(); 1163fbb1461aSJohannes Berg 1164724fe771SJohannes Berg if (free_queue >= 0 && alloc_for_sta != IWL_MVM_INVALID_STA) { 1165cfbc6c4cSSara Sharon ret = iwl_mvm_free_inactive_queue(mvm, free_queue, queue_owner, 1166724fe771SJohannes Berg alloc_for_sta); 1167fbb1461aSJohannes Berg if (ret) 1168724fe771SJohannes Berg return ret; 1169724fe771SJohannes Berg } 1170724fe771SJohannes Berg 1171724fe771SJohannes Berg return free_queue; 117299448a8cSJohannes Berg } 117399448a8cSJohannes Berg 1174c20e08b0SJohannes Berg static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm, 1175cfbc6c4cSSara Sharon struct ieee80211_sta *sta, u8 ac, int tid) 1176c20e08b0SJohannes Berg { 1177c20e08b0SJohannes Berg struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1178c20e08b0SJohannes Berg struct iwl_trans_txq_scd_cfg cfg = { 1179c20e08b0SJohannes Berg .fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac), 1180c20e08b0SJohannes Berg .sta_id = mvmsta->sta_id, 1181c20e08b0SJohannes Berg .tid = tid, 1182c20e08b0SJohannes Berg .frame_limit = IWL_FRAME_LIMIT, 1183c20e08b0SJohannes Berg }; 1184c20e08b0SJohannes Berg unsigned int wdg_timeout = 1185c20e08b0SJohannes Berg iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 1186c20e08b0SJohannes Berg int queue = -1; 1187c20e08b0SJohannes Berg unsigned long disable_agg_tids = 0; 1188c20e08b0SJohannes Berg enum iwl_mvm_agg_state queue_state; 1189c20e08b0SJohannes Berg bool shared_queue = false, inc_ssn; 1190c20e08b0SJohannes Berg int ssn; 1191c20e08b0SJohannes Berg unsigned long tfd_queue_mask; 1192c20e08b0SJohannes Berg int ret; 1193c20e08b0SJohannes Berg 1194c20e08b0SJohannes Berg lockdep_assert_held(&mvm->mutex); 1195c20e08b0SJohannes Berg 1196c20e08b0SJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1197c20e08b0SJohannes Berg return iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 1198c20e08b0SJohannes Berg 1199c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1200c20e08b0SJohannes Berg tfd_queue_mask = mvmsta->tfd_queue_msk; 120135739348SSara Sharon ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 1202c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1203c20e08b0SJohannes Berg 1204cfbc6c4cSSara Sharon if (tid == IWL_MAX_TID_COUNT) { 1205c20e08b0SJohannes Berg queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 1206c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_MGMT_QUEUE, 1207c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_MGMT_QUEUE); 1208c20e08b0SJohannes Berg if (queue >= IWL_MVM_DQA_MIN_MGMT_QUEUE) 1209c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Found free MGMT queue #%d\n", 1210c20e08b0SJohannes Berg queue); 1211c20e08b0SJohannes Berg 1212c20e08b0SJohannes Berg /* If no such queue is found, we'll use a DATA queue instead */ 1213c20e08b0SJohannes Berg } 1214c20e08b0SJohannes Berg 1215c20e08b0SJohannes Berg if ((queue < 0 && mvmsta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) && 1216c20e08b0SJohannes Berg (mvm->queue_info[mvmsta->reserved_queue].status == 1217724fe771SJohannes Berg IWL_MVM_QUEUE_RESERVED)) { 1218c20e08b0SJohannes Berg queue = mvmsta->reserved_queue; 1219c20e08b0SJohannes Berg mvm->queue_info[queue].reserved = true; 1220c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Using reserved queue #%d\n", queue); 1221c20e08b0SJohannes Berg } 1222c20e08b0SJohannes Berg 1223c20e08b0SJohannes Berg if (queue < 0) 1224c20e08b0SJohannes Berg queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 1225c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 1226c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 1227724fe771SJohannes Berg if (queue < 0) { 1228724fe771SJohannes Berg /* try harder - perhaps kill an inactive queue */ 1229724fe771SJohannes Berg queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id); 1230c20e08b0SJohannes Berg } 1231c20e08b0SJohannes Berg 1232c20e08b0SJohannes Berg /* No free queue - we'll have to share */ 1233c20e08b0SJohannes Berg if (queue <= 0) { 1234c20e08b0SJohannes Berg queue = iwl_mvm_get_shared_queue(mvm, tfd_queue_mask, ac); 1235c20e08b0SJohannes Berg if (queue > 0) { 1236c20e08b0SJohannes Berg shared_queue = true; 1237c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_SHARED; 1238c20e08b0SJohannes Berg } 1239c20e08b0SJohannes Berg } 1240c20e08b0SJohannes Berg 1241c20e08b0SJohannes Berg /* 1242c20e08b0SJohannes Berg * Mark TXQ as ready, even though it hasn't been fully configured yet, 1243c20e08b0SJohannes Berg * to make sure no one else takes it. 1244c20e08b0SJohannes Berg * This will allow avoiding re-acquiring the lock at the end of the 1245c20e08b0SJohannes Berg * configuration. On error we'll mark it back as free. 1246c20e08b0SJohannes Berg */ 1247c20e08b0SJohannes Berg if (queue > 0 && !shared_queue) 1248c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 1249c20e08b0SJohannes Berg 1250c20e08b0SJohannes Berg /* This shouldn't happen - out of queues */ 1251c20e08b0SJohannes Berg if (WARN_ON(queue <= 0)) { 1252c20e08b0SJohannes Berg IWL_ERR(mvm, "No available queues for tid %d on sta_id %d\n", 1253c20e08b0SJohannes Berg tid, cfg.sta_id); 1254c20e08b0SJohannes Berg return queue; 1255c20e08b0SJohannes Berg } 1256c20e08b0SJohannes Berg 1257c20e08b0SJohannes Berg /* 1258c20e08b0SJohannes Berg * Actual en/disablement of aggregations is through the ADD_STA HCMD, 1259c20e08b0SJohannes Berg * but for configuring the SCD to send A-MPDUs we need to mark the queue 1260c20e08b0SJohannes Berg * as aggregatable. 1261c20e08b0SJohannes Berg * Mark all DATA queues as allowing to be aggregated at some point 1262c20e08b0SJohannes Berg */ 1263c20e08b0SJohannes Berg cfg.aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1264c20e08b0SJohannes Berg queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE); 1265c20e08b0SJohannes Berg 1266c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 1267c20e08b0SJohannes Berg "Allocating %squeue #%d to sta %d on tid %d\n", 1268c20e08b0SJohannes Berg shared_queue ? "shared " : "", queue, 1269c20e08b0SJohannes Berg mvmsta->sta_id, tid); 1270c20e08b0SJohannes Berg 1271c20e08b0SJohannes Berg if (shared_queue) { 1272c20e08b0SJohannes Berg /* Disable any open aggs on this queue */ 1273c20e08b0SJohannes Berg disable_agg_tids = iwl_mvm_get_queue_agg_tids(mvm, queue); 1274c20e08b0SJohannes Berg 1275c20e08b0SJohannes Berg if (disable_agg_tids) { 1276c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Disabling aggs on queue %d\n", 1277c20e08b0SJohannes Berg queue); 1278c20e08b0SJohannes Berg iwl_mvm_invalidate_sta_queue(mvm, queue, 1279c20e08b0SJohannes Berg disable_agg_tids, false); 1280c20e08b0SJohannes Berg } 1281c20e08b0SJohannes Berg } 1282c20e08b0SJohannes Berg 1283cfbc6c4cSSara Sharon inc_ssn = iwl_mvm_enable_txq(mvm, sta, queue, ssn, &cfg, wdg_timeout); 1284c20e08b0SJohannes Berg 1285c20e08b0SJohannes Berg /* 1286c20e08b0SJohannes Berg * Mark queue as shared in transport if shared 1287c20e08b0SJohannes Berg * Note this has to be done after queue enablement because enablement 1288c20e08b0SJohannes Berg * can also set this value, and there is no indication there to shared 1289c20e08b0SJohannes Berg * queues 1290c20e08b0SJohannes Berg */ 1291c20e08b0SJohannes Berg if (shared_queue) 1292c20e08b0SJohannes Berg iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 1293c20e08b0SJohannes Berg 1294c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1295c20e08b0SJohannes Berg /* 1296c20e08b0SJohannes Berg * This looks racy, but it is not. We have only one packet for 1297c20e08b0SJohannes Berg * this ra/tid in our Tx path since we stop the Qdisc when we 1298c20e08b0SJohannes Berg * need to allocate a new TFD queue. 1299c20e08b0SJohannes Berg */ 130035739348SSara Sharon if (inc_ssn) { 1301c20e08b0SJohannes Berg mvmsta->tid_data[tid].seq_number += 0x10; 130235739348SSara Sharon ssn = (ssn + 1) & IEEE80211_SCTL_SEQ; 130335739348SSara Sharon } 1304c20e08b0SJohannes Berg mvmsta->tid_data[tid].txq_id = queue; 1305c20e08b0SJohannes Berg mvmsta->tfd_queue_msk |= BIT(queue); 1306c20e08b0SJohannes Berg queue_state = mvmsta->tid_data[tid].state; 1307c20e08b0SJohannes Berg 1308c20e08b0SJohannes Berg if (mvmsta->reserved_queue == queue) 1309c20e08b0SJohannes Berg mvmsta->reserved_queue = IEEE80211_INVAL_HW_QUEUE; 1310c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1311c20e08b0SJohannes Berg 1312c20e08b0SJohannes Berg if (!shared_queue) { 1313c20e08b0SJohannes Berg ret = iwl_mvm_sta_send_to_fw(mvm, sta, true, STA_MODIFY_QUEUES); 1314c20e08b0SJohannes Berg if (ret) 1315c20e08b0SJohannes Berg goto out_err; 1316c20e08b0SJohannes Berg 1317c20e08b0SJohannes Berg /* If we need to re-enable aggregations... */ 1318c20e08b0SJohannes Berg if (queue_state == IWL_AGG_ON) { 1319c20e08b0SJohannes Berg ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 1320c20e08b0SJohannes Berg if (ret) 1321c20e08b0SJohannes Berg goto out_err; 1322c20e08b0SJohannes Berg } 1323c20e08b0SJohannes Berg } else { 1324c20e08b0SJohannes Berg /* Redirect queue, if needed */ 1325cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, ac, ssn, 1326cfbc6c4cSSara Sharon wdg_timeout, false, 1327cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 1328c20e08b0SJohannes Berg if (ret) 1329c20e08b0SJohannes Berg goto out_err; 1330c20e08b0SJohannes Berg } 1331c20e08b0SJohannes Berg 1332c20e08b0SJohannes Berg return 0; 1333c20e08b0SJohannes Berg 1334c20e08b0SJohannes Berg out_err: 1335cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, sta, queue, tid, 0); 1336c20e08b0SJohannes Berg 1337c20e08b0SJohannes Berg return ret; 1338c20e08b0SJohannes Berg } 1339c20e08b0SJohannes Berg 134024afba76SLiad Kaufman void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk) 134124afba76SLiad Kaufman { 134224afba76SLiad Kaufman struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, 134324afba76SLiad Kaufman add_stream_wk); 134424afba76SLiad Kaufman 134524afba76SLiad Kaufman mutex_lock(&mvm->mutex); 134624afba76SLiad Kaufman 1347724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 13489f9af3d7SLiad Kaufman 1349cfbc6c4cSSara Sharon while (!list_empty(&mvm->add_stream_txqs)) { 1350cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq; 1351cfbc6c4cSSara Sharon struct ieee80211_txq *txq; 1352cfbc6c4cSSara Sharon u8 tid; 135324afba76SLiad Kaufman 1354cfbc6c4cSSara Sharon mvmtxq = list_first_entry(&mvm->add_stream_txqs, 1355cfbc6c4cSSara Sharon struct iwl_mvm_txq, list); 135624afba76SLiad Kaufman 1357cfbc6c4cSSara Sharon txq = container_of((void *)mvmtxq, struct ieee80211_txq, 1358cfbc6c4cSSara Sharon drv_priv); 1359cfbc6c4cSSara Sharon tid = txq->tid; 1360cfbc6c4cSSara Sharon if (tid == IEEE80211_NUM_TIDS) 1361cfbc6c4cSSara Sharon tid = IWL_MAX_TID_COUNT; 1362cfbc6c4cSSara Sharon 13633d1d87abSJohannes Berg /* 13643d1d87abSJohannes Berg * We can't really do much here, but if this fails we can't 13653d1d87abSJohannes Berg * transmit anyway - so just don't transmit the frame etc. 13663d1d87abSJohannes Berg * and let them back up ... we've tried our best to allocate 13673d1d87abSJohannes Berg * a queue in the function itself. 13683d1d87abSJohannes Berg */ 13693d1d87abSJohannes Berg if (iwl_mvm_sta_alloc_queue(mvm, txq->sta, txq->ac, tid)) { 13703d1d87abSJohannes Berg list_del_init(&mvmtxq->list); 13713d1d87abSJohannes Berg continue; 13723d1d87abSJohannes Berg } 13733d1d87abSJohannes Berg 1374cfbc6c4cSSara Sharon list_del_init(&mvmtxq->list); 1375f5ae2f93SJohannes Berg local_bh_disable(); 1376cfbc6c4cSSara Sharon iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1377f5ae2f93SJohannes Berg local_bh_enable(); 137824afba76SLiad Kaufman } 137924afba76SLiad Kaufman 138024afba76SLiad Kaufman mutex_unlock(&mvm->mutex); 138124afba76SLiad Kaufman } 138224afba76SLiad Kaufman 138324afba76SLiad Kaufman static int iwl_mvm_reserve_sta_stream(struct iwl_mvm *mvm, 1384d5216a28SLiad Kaufman struct ieee80211_sta *sta, 1385d5216a28SLiad Kaufman enum nl80211_iftype vif_type) 138624afba76SLiad Kaufman { 138724afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 138824afba76SLiad Kaufman int queue; 138924afba76SLiad Kaufman 1390396952eeSSara Sharon /* queue reserving is disabled on new TX path */ 1391396952eeSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1392396952eeSSara Sharon return 0; 1393396952eeSSara Sharon 1394724fe771SJohannes Berg /* run the general cleanup/unsharing of queues */ 1395724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 13969794c64fSLiad Kaufman 139724afba76SLiad Kaufman /* Make sure we have free resources for this STA */ 1398d5216a28SLiad Kaufman if (vif_type == NL80211_IFTYPE_STATION && !sta->tdls && 13991c14089eSJohannes Berg !mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].tid_bitmap && 1400cf961e16SLiad Kaufman (mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].status == 1401cf961e16SLiad Kaufman IWL_MVM_QUEUE_FREE)) 1402d5216a28SLiad Kaufman queue = IWL_MVM_DQA_BSS_CLIENT_QUEUE; 1403d5216a28SLiad Kaufman else 14049794c64fSLiad Kaufman queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 14059794c64fSLiad Kaufman IWL_MVM_DQA_MIN_DATA_QUEUE, 140624afba76SLiad Kaufman IWL_MVM_DQA_MAX_DATA_QUEUE); 140724afba76SLiad Kaufman if (queue < 0) { 1408724fe771SJohannes Berg /* try again - this time kick out a queue if needed */ 1409724fe771SJohannes Berg queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id); 1410724fe771SJohannes Berg if (queue < 0) { 141124afba76SLiad Kaufman IWL_ERR(mvm, "No available queues for new station\n"); 141224afba76SLiad Kaufman return -ENOSPC; 1413724fe771SJohannes Berg } 141424afba76SLiad Kaufman } 1415cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_RESERVED; 141624afba76SLiad Kaufman 141724afba76SLiad Kaufman mvmsta->reserved_queue = queue; 141824afba76SLiad Kaufman 141924afba76SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Reserving data queue #%d for sta_id %d\n", 142024afba76SLiad Kaufman queue, mvmsta->sta_id); 142124afba76SLiad Kaufman 142224afba76SLiad Kaufman return 0; 142324afba76SLiad Kaufman } 142424afba76SLiad Kaufman 14258d98ae6eSLiad Kaufman /* 14268d98ae6eSLiad Kaufman * In DQA mode, after a HW restart the queues should be allocated as before, in 14278d98ae6eSLiad Kaufman * order to avoid race conditions when there are shared queues. This function 14288d98ae6eSLiad Kaufman * does the re-mapping and queue allocation. 14298d98ae6eSLiad Kaufman * 14308d98ae6eSLiad Kaufman * Note that re-enabling aggregations isn't done in this function. 14318d98ae6eSLiad Kaufman */ 14328d98ae6eSLiad Kaufman static void iwl_mvm_realloc_queues_after_restart(struct iwl_mvm *mvm, 1433cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 14348d98ae6eSLiad Kaufman { 1435cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1436cfbc6c4cSSara Sharon unsigned int wdg = 14378d98ae6eSLiad Kaufman iwl_mvm_get_wd_timeout(mvm, mvm_sta->vif, false, false); 14388d98ae6eSLiad Kaufman int i; 14398d98ae6eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 14408d98ae6eSLiad Kaufman .sta_id = mvm_sta->sta_id, 14418d98ae6eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 14428d98ae6eSLiad Kaufman }; 14438d98ae6eSLiad Kaufman 144403c902bfSJohannes Berg /* Make sure reserved queue is still marked as such (if allocated) */ 144503c902bfSJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) 14468d98ae6eSLiad Kaufman mvm->queue_info[mvm_sta->reserved_queue].status = 14478d98ae6eSLiad Kaufman IWL_MVM_QUEUE_RESERVED; 14488d98ae6eSLiad Kaufman 14498d98ae6eSLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 14508d98ae6eSLiad Kaufman struct iwl_mvm_tid_data *tid_data = &mvm_sta->tid_data[i]; 14518d98ae6eSLiad Kaufman int txq_id = tid_data->txq_id; 14528d98ae6eSLiad Kaufman int ac; 14538d98ae6eSLiad Kaufman 14546862fceeSSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 14558d98ae6eSLiad Kaufman continue; 14568d98ae6eSLiad Kaufman 14578d98ae6eSLiad Kaufman ac = tid_to_mac80211_ac[i]; 14588d98ae6eSLiad Kaufman 1459310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1460310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 1461310181ecSSara Sharon "Re-mapping sta %d tid %d\n", 1462310181ecSSara Sharon mvm_sta->sta_id, i); 1463cfbc6c4cSSara Sharon txq_id = iwl_mvm_tvqm_enable_txq(mvm, mvm_sta->sta_id, 1464cfbc6c4cSSara Sharon i, wdg); 146591cf5dedSJohannes Berg /* 146691cf5dedSJohannes Berg * on failures, just set it to IWL_MVM_INVALID_QUEUE 146791cf5dedSJohannes Berg * to try again later, we have no other good way of 146891cf5dedSJohannes Berg * failing here 146991cf5dedSJohannes Berg */ 147091cf5dedSJohannes Berg if (txq_id < 0) 147191cf5dedSJohannes Berg txq_id = IWL_MVM_INVALID_QUEUE; 1472310181ecSSara Sharon tid_data->txq_id = txq_id; 14735d39051aSLiad Kaufman 14745d39051aSLiad Kaufman /* 14755d39051aSLiad Kaufman * Since we don't set the seq number after reset, and HW 14765d39051aSLiad Kaufman * sets it now, FW reset will cause the seq num to start 14775d39051aSLiad Kaufman * at 0 again, so driver will need to update it 14785d39051aSLiad Kaufman * internally as well, so it keeps in sync with real val 14795d39051aSLiad Kaufman */ 14805d39051aSLiad Kaufman tid_data->seq_number = 0; 1481310181ecSSara Sharon } else { 1482310181ecSSara Sharon u16 seq = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 1483310181ecSSara Sharon 14848d98ae6eSLiad Kaufman cfg.tid = i; 1485cf6c6ea3SEmmanuel Grumbach cfg.fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac); 14868d98ae6eSLiad Kaufman cfg.aggregate = (txq_id >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1487310181ecSSara Sharon txq_id == 1488310181ecSSara Sharon IWL_MVM_DQA_BSS_CLIENT_QUEUE); 14898d98ae6eSLiad Kaufman 14908d98ae6eSLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 14918d98ae6eSLiad Kaufman "Re-mapping sta %d tid %d to queue %d\n", 14928d98ae6eSLiad Kaufman mvm_sta->sta_id, i, txq_id); 14938d98ae6eSLiad Kaufman 1494cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, txq_id, seq, &cfg, wdg); 14958d98ae6eSLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_READY; 14968d98ae6eSLiad Kaufman } 149734e10860SSara Sharon } 14988d98ae6eSLiad Kaufman } 14998d98ae6eSLiad Kaufman 1500732d06e9SShaul Triebitz static int iwl_mvm_add_int_sta_common(struct iwl_mvm *mvm, 1501732d06e9SShaul Triebitz struct iwl_mvm_int_sta *sta, 1502732d06e9SShaul Triebitz const u8 *addr, 1503732d06e9SShaul Triebitz u16 mac_id, u16 color) 1504732d06e9SShaul Triebitz { 1505732d06e9SShaul Triebitz struct iwl_mvm_add_sta_cmd cmd; 1506732d06e9SShaul Triebitz int ret; 15073f497de9SLuca Coelho u32 status = ADD_STA_SUCCESS; 1508732d06e9SShaul Triebitz 1509732d06e9SShaul Triebitz lockdep_assert_held(&mvm->mutex); 1510732d06e9SShaul Triebitz 1511732d06e9SShaul Triebitz memset(&cmd, 0, sizeof(cmd)); 1512732d06e9SShaul Triebitz cmd.sta_id = sta->sta_id; 15132c2c3647SNathan Errera 15142c2c3647SNathan Errera if (iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP, ADD_STA, 15152c2c3647SNathan Errera 0) >= 12 && 15162c2c3647SNathan Errera sta->type == IWL_STA_AUX_ACTIVITY) 15172c2c3647SNathan Errera cmd.mac_id_n_color = cpu_to_le32(mac_id); 15182c2c3647SNathan Errera else 1519732d06e9SShaul Triebitz cmd.mac_id_n_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mac_id, 1520732d06e9SShaul Triebitz color)); 15212c2c3647SNathan Errera 1522732d06e9SShaul Triebitz if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 1523732d06e9SShaul Triebitz cmd.station_type = sta->type; 1524732d06e9SShaul Triebitz 1525732d06e9SShaul Triebitz if (!iwl_mvm_has_new_tx_api(mvm)) 1526732d06e9SShaul Triebitz cmd.tfd_queue_msk = cpu_to_le32(sta->tfd_queue_msk); 1527732d06e9SShaul Triebitz cmd.tid_disable_tx = cpu_to_le16(0xffff); 1528732d06e9SShaul Triebitz 1529732d06e9SShaul Triebitz if (addr) 1530732d06e9SShaul Triebitz memcpy(cmd.addr, addr, ETH_ALEN); 1531732d06e9SShaul Triebitz 1532732d06e9SShaul Triebitz ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1533732d06e9SShaul Triebitz iwl_mvm_add_sta_cmd_size(mvm), 1534732d06e9SShaul Triebitz &cmd, &status); 1535732d06e9SShaul Triebitz if (ret) 1536732d06e9SShaul Triebitz return ret; 1537732d06e9SShaul Triebitz 1538732d06e9SShaul Triebitz switch (status & IWL_ADD_STA_STATUS_MASK) { 1539732d06e9SShaul Triebitz case ADD_STA_SUCCESS: 1540732d06e9SShaul Triebitz IWL_DEBUG_INFO(mvm, "Internal station added.\n"); 1541732d06e9SShaul Triebitz return 0; 1542732d06e9SShaul Triebitz default: 1543732d06e9SShaul Triebitz ret = -EIO; 1544732d06e9SShaul Triebitz IWL_ERR(mvm, "Add internal station failed, status=0x%x\n", 1545732d06e9SShaul Triebitz status); 1546732d06e9SShaul Triebitz break; 1547732d06e9SShaul Triebitz } 1548732d06e9SShaul Triebitz return ret; 1549732d06e9SShaul Triebitz } 1550732d06e9SShaul Triebitz 1551e705c121SKalle Valo int iwl_mvm_add_sta(struct iwl_mvm *mvm, 1552e705c121SKalle Valo struct ieee80211_vif *vif, 1553e705c121SKalle Valo struct ieee80211_sta *sta) 1554e705c121SKalle Valo { 1555e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1556e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1557a571f5f6SSara Sharon struct iwl_mvm_rxq_dup_data *dup_data; 1558e705c121SKalle Valo int i, ret, sta_id; 1559732d06e9SShaul Triebitz bool sta_update = false; 1560732d06e9SShaul Triebitz unsigned int sta_flags = 0; 1561e705c121SKalle Valo 1562e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1563e705c121SKalle Valo 1564e705c121SKalle Valo if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1565e705c121SKalle Valo sta_id = iwl_mvm_find_free_sta_id(mvm, 1566e705c121SKalle Valo ieee80211_vif_type_p2p(vif)); 1567e705c121SKalle Valo else 1568e705c121SKalle Valo sta_id = mvm_sta->sta_id; 1569e705c121SKalle Valo 15700ae98812SSara Sharon if (sta_id == IWL_MVM_INVALID_STA) 1571e705c121SKalle Valo return -ENOSPC; 1572e705c121SKalle Valo 1573e705c121SKalle Valo spin_lock_init(&mvm_sta->lock); 1574e705c121SKalle Valo 1575c8f54701SJohannes Berg /* if this is a HW restart re-alloc existing queues */ 1576c8f54701SJohannes Berg if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1577732d06e9SShaul Triebitz struct iwl_mvm_int_sta tmp_sta = { 1578732d06e9SShaul Triebitz .sta_id = sta_id, 1579732d06e9SShaul Triebitz .type = mvm_sta->sta_type, 1580732d06e9SShaul Triebitz }; 1581732d06e9SShaul Triebitz 1582732d06e9SShaul Triebitz /* 1583732d06e9SShaul Triebitz * First add an empty station since allocating 1584732d06e9SShaul Triebitz * a queue requires a valid station 1585732d06e9SShaul Triebitz */ 1586732d06e9SShaul Triebitz ret = iwl_mvm_add_int_sta_common(mvm, &tmp_sta, sta->addr, 1587732d06e9SShaul Triebitz mvmvif->id, mvmvif->color); 1588732d06e9SShaul Triebitz if (ret) 1589732d06e9SShaul Triebitz goto err; 1590732d06e9SShaul Triebitz 1591cfbc6c4cSSara Sharon iwl_mvm_realloc_queues_after_restart(mvm, sta); 1592732d06e9SShaul Triebitz sta_update = true; 1593732d06e9SShaul Triebitz sta_flags = iwl_mvm_has_new_tx_api(mvm) ? 0 : STA_MODIFY_QUEUES; 15948d98ae6eSLiad Kaufman goto update_fw; 15958d98ae6eSLiad Kaufman } 15968d98ae6eSLiad Kaufman 1597e705c121SKalle Valo mvm_sta->sta_id = sta_id; 1598e705c121SKalle Valo mvm_sta->mac_id_n_color = FW_CMD_ID_AND_COLOR(mvmvif->id, 1599e705c121SKalle Valo mvmvif->color); 1600e705c121SKalle Valo mvm_sta->vif = vif; 1601286ca8ebSLuca Coelho if (!mvm->trans->trans_cfg->gen2) 1602e705c121SKalle Valo mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_DEF; 1603a58bb468SLiad Kaufman else 1604a58bb468SLiad Kaufman mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF; 1605e705c121SKalle Valo mvm_sta->tx_protection = 0; 1606e705c121SKalle Valo mvm_sta->tt_tx_protection = false; 1607ced19f26SSara Sharon mvm_sta->sta_type = sta->tdls ? IWL_STA_TDLS_LINK : IWL_STA_LINK; 1608e705c121SKalle Valo 1609e705c121SKalle Valo /* HW restart, don't assume the memory has been zeroed */ 1610e705c121SKalle Valo mvm_sta->tid_disable_agg = 0xffff; /* No aggs at first */ 1611e705c121SKalle Valo mvm_sta->tfd_queue_msk = 0; 1612e705c121SKalle Valo 1613e705c121SKalle Valo /* for HW restart - reset everything but the sequence number */ 161424afba76SLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 1615e705c121SKalle Valo u16 seq = mvm_sta->tid_data[i].seq_number; 1616e705c121SKalle Valo memset(&mvm_sta->tid_data[i], 0, sizeof(mvm_sta->tid_data[i])); 1617e705c121SKalle Valo mvm_sta->tid_data[i].seq_number = seq; 161824afba76SLiad Kaufman 161924afba76SLiad Kaufman /* 162024afba76SLiad Kaufman * Mark all queues for this STA as unallocated and defer TX 162124afba76SLiad Kaufman * frames until the queue is allocated 162224afba76SLiad Kaufman */ 16236862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 1624e705c121SKalle Valo } 1625cfbc6c4cSSara Sharon 1626cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1627cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1628cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1629cfbc6c4cSSara Sharon 1630cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 1631cfbc6c4cSSara Sharon INIT_LIST_HEAD(&mvmtxq->list); 1632fba8248eSSara Sharon atomic_set(&mvmtxq->tx_request, 0); 1633cfbc6c4cSSara Sharon } 1634cfbc6c4cSSara Sharon 1635e705c121SKalle Valo mvm_sta->agg_tids = 0; 1636e705c121SKalle Valo 1637a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && 1638a571f5f6SSara Sharon !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 163992c4dca6SJohannes Berg int q; 164092c4dca6SJohannes Berg 1641a571f5f6SSara Sharon dup_data = kcalloc(mvm->trans->num_rx_queues, 164292c4dca6SJohannes Berg sizeof(*dup_data), GFP_KERNEL); 1643a571f5f6SSara Sharon if (!dup_data) 1644a571f5f6SSara Sharon return -ENOMEM; 164592c4dca6SJohannes Berg /* 164692c4dca6SJohannes Berg * Initialize all the last_seq values to 0xffff which can never 164792c4dca6SJohannes Berg * compare equal to the frame's seq_ctrl in the check in 164892c4dca6SJohannes Berg * iwl_mvm_is_dup() since the lower 4 bits are the fragment 164992c4dca6SJohannes Berg * number and fragmented packets don't reach that function. 165092c4dca6SJohannes Berg * 165192c4dca6SJohannes Berg * This thus allows receiving a packet with seqno 0 and the 165292c4dca6SJohannes Berg * retry bit set as the very first packet on a new TID. 165392c4dca6SJohannes Berg */ 165492c4dca6SJohannes Berg for (q = 0; q < mvm->trans->num_rx_queues; q++) 165592c4dca6SJohannes Berg memset(dup_data[q].last_seq, 0xff, 165692c4dca6SJohannes Berg sizeof(dup_data[q].last_seq)); 1657a571f5f6SSara Sharon mvm_sta->dup_data = dup_data; 1658a571f5f6SSara Sharon } 1659a571f5f6SSara Sharon 1660c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 1661d5216a28SLiad Kaufman ret = iwl_mvm_reserve_sta_stream(mvm, sta, 1662d5216a28SLiad Kaufman ieee80211_vif_type_p2p(vif)); 166324afba76SLiad Kaufman if (ret) 166424afba76SLiad Kaufman goto err; 166524afba76SLiad Kaufman } 166624afba76SLiad Kaufman 16679f66a397SGregory Greenman /* 16689f66a397SGregory Greenman * if rs is registered with mac80211, then "add station" will be handled 16699f66a397SGregory Greenman * via the corresponding ops, otherwise need to notify rate scaling here 16709f66a397SGregory Greenman */ 16714243edb4SEmmanuel Grumbach if (iwl_mvm_has_tlc_offload(mvm)) 16729f66a397SGregory Greenman iwl_mvm_rs_add_sta(mvm, mvm_sta); 16730f8084cdSMordechay Goodstein else 1674f5d88fa3SGregory Greenman spin_lock_init(&mvm_sta->lq_sta.rs_drv.pers.lock); 16759f66a397SGregory Greenman 16760dde2440SAvraham Stern iwl_mvm_toggle_tx_ant(mvm, &mvm_sta->tx_ant); 16770dde2440SAvraham Stern 16788d98ae6eSLiad Kaufman update_fw: 1679732d06e9SShaul Triebitz ret = iwl_mvm_sta_send_to_fw(mvm, sta, sta_update, sta_flags); 1680e705c121SKalle Valo if (ret) 1681e705c121SKalle Valo goto err; 1682e705c121SKalle Valo 1683e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) { 1684e705c121SKalle Valo if (!sta->tdls) { 16850ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id != IWL_MVM_INVALID_STA); 1686e705c121SKalle Valo mvmvif->ap_sta_id = sta_id; 1687e705c121SKalle Valo } else { 16880ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id == IWL_MVM_INVALID_STA); 1689e705c121SKalle Valo } 1690e705c121SKalle Valo } 1691e705c121SKalle Valo 1692e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], sta); 1693e705c121SKalle Valo 1694e705c121SKalle Valo return 0; 1695e705c121SKalle Valo 1696e705c121SKalle Valo err: 1697e705c121SKalle Valo return ret; 1698e705c121SKalle Valo } 1699e705c121SKalle Valo 1700e705c121SKalle Valo int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, 1701e705c121SKalle Valo bool drain) 1702e705c121SKalle Valo { 1703e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 1704e705c121SKalle Valo int ret; 1705e705c121SKalle Valo u32 status; 1706e705c121SKalle Valo 1707e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1708e705c121SKalle Valo 1709e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 1710e705c121SKalle Valo cmd.sta_id = mvmsta->sta_id; 1711e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 1712e705c121SKalle Valo cmd.station_flags = drain ? cpu_to_le32(STA_FLG_DRAIN_FLOW) : 0; 1713e705c121SKalle Valo cmd.station_flags_msk = cpu_to_le32(STA_FLG_DRAIN_FLOW); 1714e705c121SKalle Valo 1715e705c121SKalle Valo status = ADD_STA_SUCCESS; 1716854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1717854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 1718e705c121SKalle Valo &cmd, &status); 1719e705c121SKalle Valo if (ret) 1720e705c121SKalle Valo return ret; 1721e705c121SKalle Valo 1722837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 1723e705c121SKalle Valo case ADD_STA_SUCCESS: 1724e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "Frames for staid %d will drained in fw\n", 1725e705c121SKalle Valo mvmsta->sta_id); 1726e705c121SKalle Valo break; 1727e705c121SKalle Valo default: 1728e705c121SKalle Valo ret = -EIO; 1729e705c121SKalle Valo IWL_ERR(mvm, "Couldn't drain frames for staid %d\n", 1730e705c121SKalle Valo mvmsta->sta_id); 1731e705c121SKalle Valo break; 1732e705c121SKalle Valo } 1733e705c121SKalle Valo 1734e705c121SKalle Valo return ret; 1735e705c121SKalle Valo } 1736e705c121SKalle Valo 1737e705c121SKalle Valo /* 1738e705c121SKalle Valo * Remove a station from the FW table. Before sending the command to remove 1739e705c121SKalle Valo * the station validate that the station is indeed known to the driver (sanity 1740e705c121SKalle Valo * only). 1741e705c121SKalle Valo */ 1742e705c121SKalle Valo static int iwl_mvm_rm_sta_common(struct iwl_mvm *mvm, u8 sta_id) 1743e705c121SKalle Valo { 1744e705c121SKalle Valo struct ieee80211_sta *sta; 1745e705c121SKalle Valo struct iwl_mvm_rm_sta_cmd rm_sta_cmd = { 1746e705c121SKalle Valo .sta_id = sta_id, 1747e705c121SKalle Valo }; 1748e705c121SKalle Valo int ret; 1749e705c121SKalle Valo 1750e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 1751e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1752e705c121SKalle Valo 1753e705c121SKalle Valo /* Note: internal stations are marked as error values */ 1754e705c121SKalle Valo if (!sta) { 1755e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 1756e705c121SKalle Valo return -EINVAL; 1757e705c121SKalle Valo } 1758e705c121SKalle Valo 1759e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, REMOVE_STA, 0, 1760e705c121SKalle Valo sizeof(rm_sta_cmd), &rm_sta_cmd); 1761e705c121SKalle Valo if (ret) { 1762e705c121SKalle Valo IWL_ERR(mvm, "Failed to remove station. Id=%d\n", sta_id); 1763e705c121SKalle Valo return ret; 1764e705c121SKalle Valo } 1765e705c121SKalle Valo 1766e705c121SKalle Valo return 0; 1767e705c121SKalle Valo } 1768e705c121SKalle Valo 176924afba76SLiad Kaufman static void iwl_mvm_disable_sta_queues(struct iwl_mvm *mvm, 177024afba76SLiad Kaufman struct ieee80211_vif *vif, 1771cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 177224afba76SLiad Kaufman { 1773cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 177424afba76SLiad Kaufman int i; 177524afba76SLiad Kaufman 177624afba76SLiad Kaufman lockdep_assert_held(&mvm->mutex); 177724afba76SLiad Kaufman 177824afba76SLiad Kaufman for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 17796862fceeSSara Sharon if (mvm_sta->tid_data[i].txq_id == IWL_MVM_INVALID_QUEUE) 178024afba76SLiad Kaufman continue; 178124afba76SLiad Kaufman 1782cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, sta, mvm_sta->tid_data[i].txq_id, i, 1783cfbc6c4cSSara Sharon 0); 17846862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 178524afba76SLiad Kaufman } 1786cfbc6c4cSSara Sharon 1787cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1788cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1789cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1790cfbc6c4cSSara Sharon 1791cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 1792cfbc6c4cSSara Sharon } 179324afba76SLiad Kaufman } 179424afba76SLiad Kaufman 1795d6d517b7SSara Sharon int iwl_mvm_wait_sta_queues_empty(struct iwl_mvm *mvm, 1796d6d517b7SSara Sharon struct iwl_mvm_sta *mvm_sta) 1797d6d517b7SSara Sharon { 1798bec9522aSSharon Dvir int i; 1799d6d517b7SSara Sharon 1800d6d517b7SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 1801d6d517b7SSara Sharon u16 txq_id; 1802bec9522aSSharon Dvir int ret; 1803d6d517b7SSara Sharon 1804d6d517b7SSara Sharon spin_lock_bh(&mvm_sta->lock); 1805d6d517b7SSara Sharon txq_id = mvm_sta->tid_data[i].txq_id; 1806d6d517b7SSara Sharon spin_unlock_bh(&mvm_sta->lock); 1807d6d517b7SSara Sharon 1808d6d517b7SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 1809d6d517b7SSara Sharon continue; 1810d6d517b7SSara Sharon 1811d6d517b7SSara Sharon ret = iwl_trans_wait_txq_empty(mvm->trans, txq_id); 1812d6d517b7SSara Sharon if (ret) 1813bec9522aSSharon Dvir return ret; 1814d6d517b7SSara Sharon } 1815d6d517b7SSara Sharon 1816bec9522aSSharon Dvir return 0; 1817d6d517b7SSara Sharon } 1818d6d517b7SSara Sharon 1819e705c121SKalle Valo int iwl_mvm_rm_sta(struct iwl_mvm *mvm, 1820e705c121SKalle Valo struct ieee80211_vif *vif, 1821e705c121SKalle Valo struct ieee80211_sta *sta) 1822e705c121SKalle Valo { 1823e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1824e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 182594c3e614SSara Sharon u8 sta_id = mvm_sta->sta_id; 1826e705c121SKalle Valo int ret; 1827e705c121SKalle Valo 1828e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1829e705c121SKalle Valo 1830a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm)) 1831a571f5f6SSara Sharon kfree(mvm_sta->dup_data); 1832a571f5f6SSara Sharon 1833e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, true); 1834e705c121SKalle Valo if (ret) 1835e705c121SKalle Valo return ret; 1836c8f54701SJohannes Berg 1837e705c121SKalle Valo /* flush its queues here since we are freeing mvm_sta */ 1838f9084775SNathan Errera ret = iwl_mvm_flush_sta(mvm, mvm_sta, false); 1839e705c121SKalle Valo if (ret) 1840e705c121SKalle Valo return ret; 1841d6d517b7SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1842d6d517b7SSara Sharon ret = iwl_mvm_wait_sta_queues_empty(mvm, mvm_sta); 1843d6d517b7SSara Sharon } else { 1844d6d517b7SSara Sharon u32 q_mask = mvm_sta->tfd_queue_msk; 1845d6d517b7SSara Sharon 1846a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 1847d6d517b7SSara Sharon q_mask); 1848d6d517b7SSara Sharon } 1849e705c121SKalle Valo if (ret) 1850e705c121SKalle Valo return ret; 1851c8f54701SJohannes Berg 1852e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, false); 1853e705c121SKalle Valo 1854cfbc6c4cSSara Sharon iwl_mvm_disable_sta_queues(mvm, vif, sta); 185556214749SLiad Kaufman 185656214749SLiad Kaufman /* If there is a TXQ still marked as reserved - free it */ 1857c8f54701SJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) { 1858a0315deaSLiad Kaufman u8 reserved_txq = mvm_sta->reserved_queue; 1859a0315deaSLiad Kaufman enum iwl_mvm_queue_status *status; 1860a0315deaSLiad Kaufman 1861a0315deaSLiad Kaufman /* 1862a0315deaSLiad Kaufman * If no traffic has gone through the reserved TXQ - it 1863a0315deaSLiad Kaufman * is still marked as IWL_MVM_QUEUE_RESERVED, and 1864a0315deaSLiad Kaufman * should be manually marked as free again 1865a0315deaSLiad Kaufman */ 1866a0315deaSLiad Kaufman status = &mvm->queue_info[reserved_txq].status; 1867a0315deaSLiad Kaufman if (WARN((*status != IWL_MVM_QUEUE_RESERVED) && 1868a0315deaSLiad Kaufman (*status != IWL_MVM_QUEUE_FREE), 1869a0315deaSLiad Kaufman "sta_id %d reserved txq %d status %d", 1870f3f240f9SJohannes Berg sta_id, reserved_txq, *status)) 1871a0315deaSLiad Kaufman return -EINVAL; 1872a0315deaSLiad Kaufman 1873a0315deaSLiad Kaufman *status = IWL_MVM_QUEUE_FREE; 1874a0315deaSLiad Kaufman } 1875a0315deaSLiad Kaufman 1876e3118ad7SLiad Kaufman if (vif->type == NL80211_IFTYPE_STATION && 187794c3e614SSara Sharon mvmvif->ap_sta_id == sta_id) { 1878e3118ad7SLiad Kaufman /* if associated - we can't remove the AP STA now */ 1879e705c121SKalle Valo if (vif->bss_conf.assoc) 1880e705c121SKalle Valo return ret; 1881e705c121SKalle Valo 1882e705c121SKalle Valo /* unassoc - go ahead - remove the AP STA now */ 18830ae98812SSara Sharon mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1884e705c121SKalle Valo } 1885e705c121SKalle Valo 1886e705c121SKalle Valo /* 1887e705c121SKalle Valo * This shouldn't happen - the TDLS channel switch should be canceled 1888e705c121SKalle Valo * before the STA is removed. 1889e705c121SKalle Valo */ 189094c3e614SSara Sharon if (WARN_ON_ONCE(mvm->tdls_cs.peer.sta_id == sta_id)) { 18910ae98812SSara Sharon mvm->tdls_cs.peer.sta_id = IWL_MVM_INVALID_STA; 1892e705c121SKalle Valo cancel_delayed_work(&mvm->tdls_cs.dwork); 1893e705c121SKalle Valo } 1894e705c121SKalle Valo 1895e705c121SKalle Valo /* 1896e705c121SKalle Valo * Make sure that the tx response code sees the station as -EBUSY and 1897e705c121SKalle Valo * calls the drain worker. 1898e705c121SKalle Valo */ 1899e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 1900e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 1901e705c121SKalle Valo 1902e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvm_sta->sta_id); 1903e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[mvm_sta->sta_id], NULL); 1904e705c121SKalle Valo 1905e705c121SKalle Valo return ret; 1906e705c121SKalle Valo } 1907e705c121SKalle Valo 1908e705c121SKalle Valo int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm, 1909e705c121SKalle Valo struct ieee80211_vif *vif, 1910e705c121SKalle Valo u8 sta_id) 1911e705c121SKalle Valo { 1912e705c121SKalle Valo int ret = iwl_mvm_rm_sta_common(mvm, sta_id); 1913e705c121SKalle Valo 1914e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1915e705c121SKalle Valo 1916e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], NULL); 1917e705c121SKalle Valo return ret; 1918e705c121SKalle Valo } 1919e705c121SKalle Valo 19200e39eb03SChaya Rachel Ivgi int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, 1921e705c121SKalle Valo struct iwl_mvm_int_sta *sta, 1922ced19f26SSara Sharon u32 qmask, enum nl80211_iftype iftype, 1923ced19f26SSara Sharon enum iwl_sta_type type) 1924e705c121SKalle Valo { 1925df65c8d1SAvraham Stern if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1926df65c8d1SAvraham Stern sta->sta_id == IWL_MVM_INVALID_STA) { 1927e705c121SKalle Valo sta->sta_id = iwl_mvm_find_free_sta_id(mvm, iftype); 19280ae98812SSara Sharon if (WARN_ON_ONCE(sta->sta_id == IWL_MVM_INVALID_STA)) 1929e705c121SKalle Valo return -ENOSPC; 1930e705c121SKalle Valo } 1931e705c121SKalle Valo 1932e705c121SKalle Valo sta->tfd_queue_msk = qmask; 1933ced19f26SSara Sharon sta->type = type; 1934e705c121SKalle Valo 1935e705c121SKalle Valo /* put a non-NULL value so iterating over the stations won't stop */ 1936e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta->sta_id], ERR_PTR(-EINVAL)); 1937e705c121SKalle Valo return 0; 1938e705c121SKalle Valo } 1939e705c121SKalle Valo 194026d6c16bSSara Sharon void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta) 1941e705c121SKalle Valo { 1942e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta->sta_id], NULL); 1943e705c121SKalle Valo memset(sta, 0, sizeof(struct iwl_mvm_int_sta)); 19440ae98812SSara Sharon sta->sta_id = IWL_MVM_INVALID_STA; 1945e705c121SKalle Valo } 1946e705c121SKalle Valo 194791cf5dedSJohannes Berg static void iwl_mvm_enable_aux_snif_queue(struct iwl_mvm *mvm, u16 queue, 1948b13f43a4SEmmanuel Grumbach u8 sta_id, u8 fifo) 1949e705c121SKalle Valo { 19509617040eSEmmanuel Grumbach unsigned int wdg_timeout = 19519617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout; 195228d0793eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 1953b13f43a4SEmmanuel Grumbach .fifo = fifo, 1954b13f43a4SEmmanuel Grumbach .sta_id = sta_id, 195528d0793eSLiad Kaufman .tid = IWL_MAX_TID_COUNT, 195628d0793eSLiad Kaufman .aggregate = false, 195728d0793eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 195828d0793eSLiad Kaufman }; 195928d0793eSLiad Kaufman 196091cf5dedSJohannes Berg WARN_ON(iwl_mvm_has_new_tx_api(mvm)); 196191cf5dedSJohannes Berg 196291cf5dedSJohannes Berg iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 196328d0793eSLiad Kaufman } 196491cf5dedSJohannes Berg 196591cf5dedSJohannes Berg static int iwl_mvm_enable_aux_snif_queue_tvqm(struct iwl_mvm *mvm, u8 sta_id) 196691cf5dedSJohannes Berg { 19679617040eSEmmanuel Grumbach unsigned int wdg_timeout = 19689617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout; 196991cf5dedSJohannes Berg 197091cf5dedSJohannes Berg WARN_ON(!iwl_mvm_has_new_tx_api(mvm)); 197191cf5dedSJohannes Berg 197291cf5dedSJohannes Berg return iwl_mvm_tvqm_enable_txq(mvm, sta_id, IWL_MAX_TID_COUNT, 197391cf5dedSJohannes Berg wdg_timeout); 197491cf5dedSJohannes Berg } 197591cf5dedSJohannes Berg 197691cf5dedSJohannes Berg static int iwl_mvm_add_int_sta_with_queue(struct iwl_mvm *mvm, int macidx, 1977be82ecd3SAvraham Stern int maccolor, u8 *addr, 197891cf5dedSJohannes Berg struct iwl_mvm_int_sta *sta, 197991cf5dedSJohannes Berg u16 *queue, int fifo) 198091cf5dedSJohannes Berg { 198191cf5dedSJohannes Berg int ret; 198291cf5dedSJohannes Berg 198391cf5dedSJohannes Berg /* Map queue to fifo - needs to happen before adding station */ 198491cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) 198591cf5dedSJohannes Berg iwl_mvm_enable_aux_snif_queue(mvm, *queue, sta->sta_id, fifo); 198691cf5dedSJohannes Berg 1987be82ecd3SAvraham Stern ret = iwl_mvm_add_int_sta_common(mvm, sta, addr, macidx, maccolor); 198891cf5dedSJohannes Berg if (ret) { 198991cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) 199091cf5dedSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, *queue, 199191cf5dedSJohannes Berg IWL_MAX_TID_COUNT, 0); 199291cf5dedSJohannes Berg return ret; 199391cf5dedSJohannes Berg } 199491cf5dedSJohannes Berg 199591cf5dedSJohannes Berg /* 199691cf5dedSJohannes Berg * For 22000 firmware and on we cannot add queue to a station unknown 199791cf5dedSJohannes Berg * to firmware so enable queue here - after the station was added 199891cf5dedSJohannes Berg */ 199991cf5dedSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) { 200091cf5dedSJohannes Berg int txq; 200191cf5dedSJohannes Berg 200291cf5dedSJohannes Berg txq = iwl_mvm_enable_aux_snif_queue_tvqm(mvm, sta->sta_id); 200391cf5dedSJohannes Berg if (txq < 0) { 200491cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, sta->sta_id); 200591cf5dedSJohannes Berg return txq; 200691cf5dedSJohannes Berg } 200791cf5dedSJohannes Berg 200891cf5dedSJohannes Berg *queue = txq; 200991cf5dedSJohannes Berg } 201091cf5dedSJohannes Berg 201191cf5dedSJohannes Berg return 0; 2012c5a719eeSSara Sharon } 2013c5a719eeSSara Sharon 20142c2c3647SNathan Errera int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm, u32 lmac_id) 2015c5a719eeSSara Sharon { 2016c5a719eeSSara Sharon int ret; 2017c5a719eeSSara Sharon 2018c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2019c5a719eeSSara Sharon 2020c5a719eeSSara Sharon /* Allocate aux station and assign to it the aux queue */ 2021c5a719eeSSara Sharon ret = iwl_mvm_allocate_int_sta(mvm, &mvm->aux_sta, BIT(mvm->aux_queue), 2022ced19f26SSara Sharon NL80211_IFTYPE_UNSPECIFIED, 2023ced19f26SSara Sharon IWL_STA_AUX_ACTIVITY); 2024c5a719eeSSara Sharon if (ret) 2025c5a719eeSSara Sharon return ret; 2026c5a719eeSSara Sharon 20272c2c3647SNathan Errera /* 20282c2c3647SNathan Errera * In CDB NICs we need to specify which lmac to use for aux activity 20292c2c3647SNathan Errera * using the mac_id argument place to send lmac_id to the function 20302c2c3647SNathan Errera */ 20312c2c3647SNathan Errera ret = iwl_mvm_add_int_sta_with_queue(mvm, lmac_id, 0, NULL, 203291cf5dedSJohannes Berg &mvm->aux_sta, &mvm->aux_queue, 2033b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_MCAST); 2034c5a719eeSSara Sharon if (ret) { 2035e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2036e705c121SKalle Valo return ret; 2037e705c121SKalle Valo } 2038e705c121SKalle Valo 2039c5a719eeSSara Sharon return 0; 2040c5a719eeSSara Sharon } 2041c5a719eeSSara Sharon 20420e39eb03SChaya Rachel Ivgi int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 20430e39eb03SChaya Rachel Ivgi { 20440e39eb03SChaya Rachel Ivgi struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 20450e39eb03SChaya Rachel Ivgi 20460e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 2047b13f43a4SEmmanuel Grumbach 204891cf5dedSJohannes Berg return iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id, mvmvif->color, 2049be82ecd3SAvraham Stern NULL, &mvm->snif_sta, 2050be82ecd3SAvraham Stern &mvm->snif_queue, 2051b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_BE); 20520e39eb03SChaya Rachel Ivgi } 20530e39eb03SChaya Rachel Ivgi 20540e39eb03SChaya Rachel Ivgi int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 20550e39eb03SChaya Rachel Ivgi { 20560e39eb03SChaya Rachel Ivgi int ret; 20570e39eb03SChaya Rachel Ivgi 20580e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 20590e39eb03SChaya Rachel Ivgi 2060*e223e42aSGregory Greenman if (WARN_ON_ONCE(mvm->snif_sta.sta_id == IWL_MVM_INVALID_STA)) 2061*e223e42aSGregory Greenman return -EINVAL; 2062*e223e42aSGregory Greenman 2063cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, NULL, mvm->snif_queue, IWL_MAX_TID_COUNT, 0); 20640e39eb03SChaya Rachel Ivgi ret = iwl_mvm_rm_sta_common(mvm, mvm->snif_sta.sta_id); 20650e39eb03SChaya Rachel Ivgi if (ret) 20660e39eb03SChaya Rachel Ivgi IWL_WARN(mvm, "Failed sending remove station\n"); 20670e39eb03SChaya Rachel Ivgi 20680e39eb03SChaya Rachel Ivgi return ret; 20690e39eb03SChaya Rachel Ivgi } 20700e39eb03SChaya Rachel Ivgi 2071f327236dSSharon int iwl_mvm_rm_aux_sta(struct iwl_mvm *mvm) 2072f327236dSSharon { 2073f327236dSSharon int ret; 2074f327236dSSharon 2075f327236dSSharon lockdep_assert_held(&mvm->mutex); 2076f327236dSSharon 2077*e223e42aSGregory Greenman if (WARN_ON_ONCE(mvm->aux_sta.sta_id == IWL_MVM_INVALID_STA)) 2078*e223e42aSGregory Greenman return -EINVAL; 2079*e223e42aSGregory Greenman 2080f327236dSSharon iwl_mvm_disable_txq(mvm, NULL, mvm->aux_queue, IWL_MAX_TID_COUNT, 0); 2081f327236dSSharon ret = iwl_mvm_rm_sta_common(mvm, mvm->aux_sta.sta_id); 2082f327236dSSharon if (ret) 2083f327236dSSharon IWL_WARN(mvm, "Failed sending remove station\n"); 2084f327236dSSharon iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2085f327236dSSharon 2086f327236dSSharon return ret; 2087f327236dSSharon } 2088f327236dSSharon 20890e39eb03SChaya Rachel Ivgi void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm) 20900e39eb03SChaya Rachel Ivgi { 20910e39eb03SChaya Rachel Ivgi iwl_mvm_dealloc_int_sta(mvm, &mvm->snif_sta); 20920e39eb03SChaya Rachel Ivgi } 20930e39eb03SChaya Rachel Ivgi 2094e705c121SKalle Valo /* 2095e705c121SKalle Valo * Send the add station command for the vif's broadcast station. 2096e705c121SKalle Valo * Assumes that the station was already allocated. 2097e705c121SKalle Valo * 2098e705c121SKalle Valo * @mvm: the mvm component 2099e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2100e705c121SKalle Valo * @bsta: the broadcast station to add. 2101e705c121SKalle Valo */ 2102e705c121SKalle Valo int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2103e705c121SKalle Valo { 2104e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2105e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 2106e705c121SKalle Valo static const u8 _baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; 2107e705c121SKalle Valo const u8 *baddr = _baddr; 21087daa7624SJohannes Berg int queue; 2109df88c08dSLiad Kaufman int ret; 2110c5a719eeSSara Sharon unsigned int wdg_timeout = 2111c5a719eeSSara Sharon iwl_mvm_get_wd_timeout(mvm, vif, false, false); 2112de24f638SLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 2113de24f638SLiad Kaufman .fifo = IWL_MVM_TX_FIFO_VO, 2114de24f638SLiad Kaufman .sta_id = mvmvif->bcast_sta.sta_id, 2115de24f638SLiad Kaufman .tid = IWL_MAX_TID_COUNT, 2116de24f638SLiad Kaufman .aggregate = false, 2117de24f638SLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 2118de24f638SLiad Kaufman }; 2119de24f638SLiad Kaufman 2120c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2121c5a719eeSSara Sharon 2122c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 21234d339989SLiad Kaufman if (vif->type == NL80211_IFTYPE_AP || 2124f8510d67SNathan Chancellor vif->type == NL80211_IFTYPE_ADHOC) { 212549f71713SSara Sharon queue = mvm->probe_queue; 2126f8510d67SNathan Chancellor } else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 212749f71713SSara Sharon queue = mvm->p2p_dev_queue; 2128f8510d67SNathan Chancellor } else { 2129f8510d67SNathan Chancellor WARN(1, "Missing required TXQ for adding bcast STA\n"); 2130de24f638SLiad Kaufman return -EINVAL; 2131f8510d67SNathan Chancellor } 2132de24f638SLiad Kaufman 2133df88c08dSLiad Kaufman bsta->tfd_queue_msk |= BIT(queue); 2134c5a719eeSSara Sharon 2135cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 2136de24f638SLiad Kaufman } 2137de24f638SLiad Kaufman 2138e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_ADHOC) 2139e705c121SKalle Valo baddr = vif->bss_conf.bssid; 2140e705c121SKalle Valo 21410ae98812SSara Sharon if (WARN_ON_ONCE(bsta->sta_id == IWL_MVM_INVALID_STA)) 2142e705c121SKalle Valo return -ENOSPC; 2143e705c121SKalle Valo 2144df88c08dSLiad Kaufman ret = iwl_mvm_add_int_sta_common(mvm, bsta, baddr, 2145e705c121SKalle Valo mvmvif->id, mvmvif->color); 2146df88c08dSLiad Kaufman if (ret) 2147df88c08dSLiad Kaufman return ret; 2148df88c08dSLiad Kaufman 2149df88c08dSLiad Kaufman /* 21502f7a3863SLuca Coelho * For 22000 firmware and on we cannot add queue to a station unknown 2151c5a719eeSSara Sharon * to firmware so enable queue here - after the station was added 2152df88c08dSLiad Kaufman */ 2153310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 2154cfbc6c4cSSara Sharon queue = iwl_mvm_tvqm_enable_txq(mvm, bsta->sta_id, 2155310181ecSSara Sharon IWL_MAX_TID_COUNT, 2156c5a719eeSSara Sharon wdg_timeout); 215791cf5dedSJohannes Berg if (queue < 0) { 215891cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, bsta->sta_id); 215991cf5dedSJohannes Berg return queue; 216091cf5dedSJohannes Berg } 21617daa7624SJohannes Berg 21627b758a11SLuca Coelho if (vif->type == NL80211_IFTYPE_AP || 21637b758a11SLuca Coelho vif->type == NL80211_IFTYPE_ADHOC) 2164310181ecSSara Sharon mvm->probe_queue = queue; 2165310181ecSSara Sharon else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 2166310181ecSSara Sharon mvm->p2p_dev_queue = queue; 2167310181ecSSara Sharon } 2168df88c08dSLiad Kaufman 2169df88c08dSLiad Kaufman return 0; 2170df88c08dSLiad Kaufman } 2171df88c08dSLiad Kaufman 2172df88c08dSLiad Kaufman static void iwl_mvm_free_bcast_sta_queues(struct iwl_mvm *mvm, 2173df88c08dSLiad Kaufman struct ieee80211_vif *vif) 2174df88c08dSLiad Kaufman { 2175df88c08dSLiad Kaufman struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2176d167e81aSMordechai Goodstein int queue; 2177df88c08dSLiad Kaufman 2178df88c08dSLiad Kaufman lockdep_assert_held(&mvm->mutex); 2179df88c08dSLiad Kaufman 2180f9084775SNathan Errera iwl_mvm_flush_sta(mvm, &mvmvif->bcast_sta, true); 2181d49394a1SSara Sharon 2182d167e81aSMordechai Goodstein switch (vif->type) { 2183d167e81aSMordechai Goodstein case NL80211_IFTYPE_AP: 2184d167e81aSMordechai Goodstein case NL80211_IFTYPE_ADHOC: 2185d167e81aSMordechai Goodstein queue = mvm->probe_queue; 2186d167e81aSMordechai Goodstein break; 2187d167e81aSMordechai Goodstein case NL80211_IFTYPE_P2P_DEVICE: 2188d167e81aSMordechai Goodstein queue = mvm->p2p_dev_queue; 2189d167e81aSMordechai Goodstein break; 2190d167e81aSMordechai Goodstein default: 2191d167e81aSMordechai Goodstein WARN(1, "Can't free bcast queue on vif type %d\n", 2192d167e81aSMordechai Goodstein vif->type); 2193d167e81aSMordechai Goodstein return; 2194df88c08dSLiad Kaufman } 2195df88c08dSLiad Kaufman 2196cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, NULL, queue, IWL_MAX_TID_COUNT, 0); 2197d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) 2198d167e81aSMordechai Goodstein return; 2199d167e81aSMordechai Goodstein 2200d167e81aSMordechai Goodstein WARN_ON(!(mvmvif->bcast_sta.tfd_queue_msk & BIT(queue))); 2201d167e81aSMordechai Goodstein mvmvif->bcast_sta.tfd_queue_msk &= ~BIT(queue); 2202e705c121SKalle Valo } 2203e705c121SKalle Valo 2204e705c121SKalle Valo /* Send the FW a request to remove the station from it's internal data 2205e705c121SKalle Valo * structures, but DO NOT remove the entry from the local data structures. */ 2206e705c121SKalle Valo int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2207e705c121SKalle Valo { 2208e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2209e705c121SKalle Valo int ret; 2210e705c121SKalle Valo 2211e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2212e705c121SKalle Valo 2213df88c08dSLiad Kaufman iwl_mvm_free_bcast_sta_queues(mvm, vif); 2214df88c08dSLiad Kaufman 2215e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvmvif->bcast_sta.sta_id); 2216e705c121SKalle Valo if (ret) 2217e705c121SKalle Valo IWL_WARN(mvm, "Failed sending remove station\n"); 2218e705c121SKalle Valo return ret; 2219e705c121SKalle Valo } 2220e705c121SKalle Valo 2221e705c121SKalle Valo int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2222e705c121SKalle Valo { 2223e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2224e705c121SKalle Valo 2225e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2226e705c121SKalle Valo 2227c8f54701SJohannes Berg return iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, 0, 2228ced19f26SSara Sharon ieee80211_vif_type_p2p(vif), 2229ced19f26SSara Sharon IWL_STA_GENERAL_PURPOSE); 2230e705c121SKalle Valo } 2231e705c121SKalle Valo 2232e705c121SKalle Valo /* Allocate a new station entry for the broadcast station to the given vif, 2233e705c121SKalle Valo * and send it to the FW. 2234e705c121SKalle Valo * Note that each P2P mac should have its own broadcast station. 2235e705c121SKalle Valo * 2236e705c121SKalle Valo * @mvm: the mvm component 2237e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2238e705c121SKalle Valo * @bsta: the broadcast station to add. */ 2239d197358bSLuca Coelho int iwl_mvm_add_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2240e705c121SKalle Valo { 2241e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2242e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 2243e705c121SKalle Valo int ret; 2244e705c121SKalle Valo 2245e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2246e705c121SKalle Valo 2247e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 2248e705c121SKalle Valo if (ret) 2249e705c121SKalle Valo return ret; 2250e705c121SKalle Valo 2251e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2252e705c121SKalle Valo 2253e705c121SKalle Valo if (ret) 2254e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, bsta); 2255e705c121SKalle Valo 2256e705c121SKalle Valo return ret; 2257e705c121SKalle Valo } 2258e705c121SKalle Valo 2259e705c121SKalle Valo void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2260e705c121SKalle Valo { 2261e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2262e705c121SKalle Valo 2263e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta); 2264e705c121SKalle Valo } 2265e705c121SKalle Valo 2266e705c121SKalle Valo /* 2267e705c121SKalle Valo * Send the FW a request to remove the station from it's internal data 2268e705c121SKalle Valo * structures, and in addition remove it from the local data structure. 2269e705c121SKalle Valo */ 2270d197358bSLuca Coelho int iwl_mvm_rm_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2271e705c121SKalle Valo { 2272e705c121SKalle Valo int ret; 2273e705c121SKalle Valo 2274e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2275e705c121SKalle Valo 2276e705c121SKalle Valo ret = iwl_mvm_send_rm_bcast_sta(mvm, vif); 2277e705c121SKalle Valo 2278e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif); 2279e705c121SKalle Valo 2280e705c121SKalle Valo return ret; 2281e705c121SKalle Valo } 2282e705c121SKalle Valo 228326d6c16bSSara Sharon /* 228426d6c16bSSara Sharon * Allocate a new station entry for the multicast station to the given vif, 228526d6c16bSSara Sharon * and send it to the FW. 228626d6c16bSSara Sharon * Note that each AP/GO mac should have its own multicast station. 228726d6c16bSSara Sharon * 228826d6c16bSSara Sharon * @mvm: the mvm component 228926d6c16bSSara Sharon * @vif: the interface to which the multicast station is added 229026d6c16bSSara Sharon */ 229126d6c16bSSara Sharon int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 229226d6c16bSSara Sharon { 229326d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 229426d6c16bSSara Sharon struct iwl_mvm_int_sta *msta = &mvmvif->mcast_sta; 229526d6c16bSSara Sharon static const u8 _maddr[] = {0x03, 0x00, 0x00, 0x00, 0x00, 0x00}; 229626d6c16bSSara Sharon const u8 *maddr = _maddr; 229726d6c16bSSara Sharon struct iwl_trans_txq_scd_cfg cfg = { 2298192a7e1fSJohannes Berg .fifo = vif->type == NL80211_IFTYPE_AP ? 2299192a7e1fSJohannes Berg IWL_MVM_TX_FIFO_MCAST : IWL_MVM_TX_FIFO_BE, 230026d6c16bSSara Sharon .sta_id = msta->sta_id, 23016508de03SIlan Peer .tid = 0, 230226d6c16bSSara Sharon .aggregate = false, 230326d6c16bSSara Sharon .frame_limit = IWL_FRAME_LIMIT, 230426d6c16bSSara Sharon }; 230526d6c16bSSara Sharon unsigned int timeout = iwl_mvm_get_wd_timeout(mvm, vif, false, false); 230626d6c16bSSara Sharon int ret; 230726d6c16bSSara Sharon 230826d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 230926d6c16bSSara Sharon 2310ee48b722SLiad Kaufman if (WARN_ON(vif->type != NL80211_IFTYPE_AP && 2311ee48b722SLiad Kaufman vif->type != NL80211_IFTYPE_ADHOC)) 231226d6c16bSSara Sharon return -ENOTSUPP; 231326d6c16bSSara Sharon 2314ced19f26SSara Sharon /* 2315fc07bd8cSSara Sharon * In IBSS, ieee80211_check_queues() sets the cab_queue to be 2316fc07bd8cSSara Sharon * invalid, so make sure we use the queue we want. 2317fc07bd8cSSara Sharon * Note that this is done here as we want to avoid making DQA 2318fc07bd8cSSara Sharon * changes in mac80211 layer. 2319fc07bd8cSSara Sharon */ 2320cfbc6c4cSSara Sharon if (vif->type == NL80211_IFTYPE_ADHOC) 2321cfbc6c4cSSara Sharon mvmvif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE; 2322fc07bd8cSSara Sharon 2323fc07bd8cSSara Sharon /* 2324ced19f26SSara Sharon * While in previous FWs we had to exclude cab queue from TFD queue 2325ced19f26SSara Sharon * mask, now it is needed as any other queue. 2326ced19f26SSara Sharon */ 2327ced19f26SSara Sharon if (!iwl_mvm_has_new_tx_api(mvm) && 2328ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2329cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, 2330cfbc6c4cSSara Sharon timeout); 2331cfbc6c4cSSara Sharon msta->tfd_queue_msk |= BIT(mvmvif->cab_queue); 2332ced19f26SSara Sharon } 233326d6c16bSSara Sharon ret = iwl_mvm_add_int_sta_common(mvm, msta, maddr, 233426d6c16bSSara Sharon mvmvif->id, mvmvif->color); 233591cf5dedSJohannes Berg if (ret) 233691cf5dedSJohannes Berg goto err; 233726d6c16bSSara Sharon 233826d6c16bSSara Sharon /* 233926d6c16bSSara Sharon * Enable cab queue after the ADD_STA command is sent. 23402f7a3863SLuca Coelho * This is needed for 22000 firmware which won't accept SCD_QUEUE_CFG 2341ced19f26SSara Sharon * command with unknown station id, and for FW that doesn't support 2342ced19f26SSara Sharon * station API since the cab queue is not included in the 2343ced19f26SSara Sharon * tfd_queue_mask. 234426d6c16bSSara Sharon */ 2345310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 2346cfbc6c4cSSara Sharon int queue = iwl_mvm_tvqm_enable_txq(mvm, msta->sta_id, 23476508de03SIlan Peer 0, 234826d6c16bSSara Sharon timeout); 234991cf5dedSJohannes Berg if (queue < 0) { 235091cf5dedSJohannes Berg ret = queue; 235191cf5dedSJohannes Berg goto err; 235291cf5dedSJohannes Berg } 2353e2af3fabSSara Sharon mvmvif->cab_queue = queue; 2354ced19f26SSara Sharon } else if (!fw_has_api(&mvm->fw->ucode_capa, 2355fc07bd8cSSara Sharon IWL_UCODE_TLV_API_STA_TYPE)) 2356cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, 2357cfbc6c4cSSara Sharon timeout); 235826d6c16bSSara Sharon 235926d6c16bSSara Sharon return 0; 236091cf5dedSJohannes Berg err: 236191cf5dedSJohannes Berg iwl_mvm_dealloc_int_sta(mvm, msta); 236291cf5dedSJohannes Berg return ret; 236326d6c16bSSara Sharon } 236426d6c16bSSara Sharon 236528916a16SEmmanuel Grumbach static int __iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, u8 sta_id, 236628916a16SEmmanuel Grumbach struct ieee80211_key_conf *keyconf, 236728916a16SEmmanuel Grumbach bool mcast) 236828916a16SEmmanuel Grumbach { 236928916a16SEmmanuel Grumbach union { 237028916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 237128916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd cmd; 237228916a16SEmmanuel Grumbach } u = {}; 237328916a16SEmmanuel Grumbach bool new_api = fw_has_api(&mvm->fw->ucode_capa, 237428916a16SEmmanuel Grumbach IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 237528916a16SEmmanuel Grumbach __le16 key_flags; 237628916a16SEmmanuel Grumbach int ret, size; 237728916a16SEmmanuel Grumbach u32 status; 237828916a16SEmmanuel Grumbach 237928916a16SEmmanuel Grumbach /* This is a valid situation for GTK removal */ 238028916a16SEmmanuel Grumbach if (sta_id == IWL_MVM_INVALID_STA) 238128916a16SEmmanuel Grumbach return 0; 238228916a16SEmmanuel Grumbach 238328916a16SEmmanuel Grumbach key_flags = cpu_to_le16((keyconf->keyidx << STA_KEY_FLG_KEYID_POS) & 238428916a16SEmmanuel Grumbach STA_KEY_FLG_KEYID_MSK); 238528916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_FLG_NO_ENC | STA_KEY_FLG_WEP_KEY_MAP); 238628916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_NOT_VALID); 238728916a16SEmmanuel Grumbach 238828916a16SEmmanuel Grumbach if (mcast) 238928916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 239028916a16SEmmanuel Grumbach 239128916a16SEmmanuel Grumbach /* 239228916a16SEmmanuel Grumbach * The fields assigned here are in the same location at the start 239328916a16SEmmanuel Grumbach * of the command, so we can do this union trick. 239428916a16SEmmanuel Grumbach */ 239528916a16SEmmanuel Grumbach u.cmd.common.key_flags = key_flags; 239628916a16SEmmanuel Grumbach u.cmd.common.key_offset = keyconf->hw_key_idx; 239728916a16SEmmanuel Grumbach u.cmd.common.sta_id = sta_id; 239828916a16SEmmanuel Grumbach 239928916a16SEmmanuel Grumbach size = new_api ? sizeof(u.cmd) : sizeof(u.cmd_v1); 240028916a16SEmmanuel Grumbach 240128916a16SEmmanuel Grumbach status = ADD_STA_SUCCESS; 240228916a16SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, &u.cmd, 240328916a16SEmmanuel Grumbach &status); 240428916a16SEmmanuel Grumbach 240528916a16SEmmanuel Grumbach switch (status) { 240628916a16SEmmanuel Grumbach case ADD_STA_SUCCESS: 240728916a16SEmmanuel Grumbach IWL_DEBUG_WEP(mvm, "MODIFY_STA: remove sta key passed\n"); 240828916a16SEmmanuel Grumbach break; 240928916a16SEmmanuel Grumbach default: 241028916a16SEmmanuel Grumbach ret = -EIO; 241128916a16SEmmanuel Grumbach IWL_ERR(mvm, "MODIFY_STA: remove sta key failed\n"); 241228916a16SEmmanuel Grumbach break; 241328916a16SEmmanuel Grumbach } 241428916a16SEmmanuel Grumbach 241528916a16SEmmanuel Grumbach return ret; 241628916a16SEmmanuel Grumbach } 241728916a16SEmmanuel Grumbach 241826d6c16bSSara Sharon /* 241926d6c16bSSara Sharon * Send the FW a request to remove the station from it's internal data 242026d6c16bSSara Sharon * structures, and in addition remove it from the local data structure. 242126d6c16bSSara Sharon */ 242226d6c16bSSara Sharon int iwl_mvm_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 242326d6c16bSSara Sharon { 242426d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 242526d6c16bSSara Sharon int ret; 242626d6c16bSSara Sharon 242726d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 242826d6c16bSSara Sharon 2429f9084775SNathan Errera iwl_mvm_flush_sta(mvm, &mvmvif->mcast_sta, true); 2430d49394a1SSara Sharon 2431cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, NULL, mvmvif->cab_queue, 0, 0); 243226d6c16bSSara Sharon 243326d6c16bSSara Sharon ret = iwl_mvm_rm_sta_common(mvm, mvmvif->mcast_sta.sta_id); 243426d6c16bSSara Sharon if (ret) 243526d6c16bSSara Sharon IWL_WARN(mvm, "Failed sending remove station\n"); 243626d6c16bSSara Sharon 243726d6c16bSSara Sharon return ret; 243826d6c16bSSara Sharon } 243926d6c16bSSara Sharon 2440e705c121SKalle Valo #define IWL_MAX_RX_BA_SESSIONS 16 2441e705c121SKalle Valo 2442b915c101SSara Sharon static void iwl_mvm_sync_rxq_del_ba(struct iwl_mvm *mvm, u8 baid) 244310b2b201SSara Sharon { 24446b2dbce5SEmmanuel Grumbach struct iwl_mvm_rss_sync_notif notif = { 2445b915c101SSara Sharon .metadata.type = IWL_MVM_RXQ_NOTIF_DEL_BA, 2446b915c101SSara Sharon .metadata.sync = 1, 2447b915c101SSara Sharon .delba.baid = baid, 2448b915c101SSara Sharon }; 2449b915c101SSara Sharon iwl_mvm_sync_rx_queues_internal(mvm, (void *)¬if, sizeof(notif)); 245010b2b201SSara Sharon }; 245110b2b201SSara Sharon 2452b915c101SSara Sharon static void iwl_mvm_free_reorder(struct iwl_mvm *mvm, 2453b915c101SSara Sharon struct iwl_mvm_baid_data *data) 2454b915c101SSara Sharon { 2455b915c101SSara Sharon int i; 2456b915c101SSara Sharon 2457b915c101SSara Sharon iwl_mvm_sync_rxq_del_ba(mvm, data->baid); 2458b915c101SSara Sharon 2459b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2460b915c101SSara Sharon int j; 2461b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2462b915c101SSara Sharon &data->reorder_buf[i]; 2463dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2464dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2465b915c101SSara Sharon 24660690405fSSara Sharon spin_lock_bh(&reorder_buf->lock); 24670690405fSSara Sharon if (likely(!reorder_buf->num_stored)) { 24680690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 2469b915c101SSara Sharon continue; 24700690405fSSara Sharon } 2471b915c101SSara Sharon 2472b915c101SSara Sharon /* 2473b915c101SSara Sharon * This shouldn't happen in regular DELBA since the internal 2474b915c101SSara Sharon * delBA notification should trigger a release of all frames in 2475b915c101SSara Sharon * the reorder buffer. 2476b915c101SSara Sharon */ 2477b915c101SSara Sharon WARN_ON(1); 2478b915c101SSara Sharon 2479b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2480dfdddd92SJohannes Berg __skb_queue_purge(&entries[j].e.frames); 24810690405fSSara Sharon /* 24820690405fSSara Sharon * Prevent timer re-arm. This prevents a very far fetched case 24830690405fSSara Sharon * where we timed out on the notification. There may be prior 24840690405fSSara Sharon * RX frames pending in the RX queue before the notification 24850690405fSSara Sharon * that might get processed between now and the actual deletion 24860690405fSSara Sharon * and we would re-arm the timer although we are deleting the 24870690405fSSara Sharon * reorder buffer. 24880690405fSSara Sharon */ 24890690405fSSara Sharon reorder_buf->removed = true; 24900690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 24910690405fSSara Sharon del_timer_sync(&reorder_buf->reorder_timer); 2492b915c101SSara Sharon } 2493b915c101SSara Sharon } 2494b915c101SSara Sharon 2495b915c101SSara Sharon static void iwl_mvm_init_reorder_buffer(struct iwl_mvm *mvm, 2496b915c101SSara Sharon struct iwl_mvm_baid_data *data, 2497514c3069SLuca Coelho u16 ssn, u16 buf_size) 2498b915c101SSara Sharon { 2499b915c101SSara Sharon int i; 2500b915c101SSara Sharon 2501b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2502b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2503b915c101SSara Sharon &data->reorder_buf[i]; 2504dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2505dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2506b915c101SSara Sharon int j; 2507b915c101SSara Sharon 2508b915c101SSara Sharon reorder_buf->num_stored = 0; 2509b915c101SSara Sharon reorder_buf->head_sn = ssn; 2510b915c101SSara Sharon reorder_buf->buf_size = buf_size; 25110690405fSSara Sharon /* rx reorder timer */ 25128cef5344SKees Cook timer_setup(&reorder_buf->reorder_timer, 25138cef5344SKees Cook iwl_mvm_reorder_timer_expired, 0); 25140690405fSSara Sharon spin_lock_init(&reorder_buf->lock); 25150690405fSSara Sharon reorder_buf->mvm = mvm; 2516b915c101SSara Sharon reorder_buf->queue = i; 25175d43eab6SSara Sharon reorder_buf->valid = false; 2518b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2519dfdddd92SJohannes Berg __skb_queue_head_init(&entries[j].e.frames); 2520b915c101SSara Sharon } 252110b2b201SSara Sharon } 252210b2b201SSara Sharon 2523e705c121SKalle Valo int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2524514c3069SLuca Coelho int tid, u16 ssn, bool start, u16 buf_size, u16 timeout) 2525e705c121SKalle Valo { 2526e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2527e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 252810b2b201SSara Sharon struct iwl_mvm_baid_data *baid_data = NULL; 2529e705c121SKalle Valo int ret; 2530e705c121SKalle Valo u32 status; 2531e705c121SKalle Valo 2532e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2533e705c121SKalle Valo 2534e705c121SKalle Valo if (start && mvm->rx_ba_sessions >= IWL_MAX_RX_BA_SESSIONS) { 2535e705c121SKalle Valo IWL_WARN(mvm, "Not enough RX BA SESSIONS\n"); 2536e705c121SKalle Valo return -ENOSPC; 2537e705c121SKalle Valo } 2538e705c121SKalle Valo 253910b2b201SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && start) { 2540dfdddd92SJohannes Berg u16 reorder_buf_size = buf_size * sizeof(baid_data->entries[0]); 2541dfdddd92SJohannes Berg 2542dfdddd92SJohannes Berg /* sparse doesn't like the __align() so don't check */ 2543dfdddd92SJohannes Berg #ifndef __CHECKER__ 2544dfdddd92SJohannes Berg /* 2545dfdddd92SJohannes Berg * The division below will be OK if either the cache line size 2546dfdddd92SJohannes Berg * can be divided by the entry size (ALIGN will round up) or if 2547dfdddd92SJohannes Berg * if the entry size can be divided by the cache line size, in 2548dfdddd92SJohannes Berg * which case the ALIGN() will do nothing. 2549dfdddd92SJohannes Berg */ 2550dfdddd92SJohannes Berg BUILD_BUG_ON(SMP_CACHE_BYTES % sizeof(baid_data->entries[0]) && 2551dfdddd92SJohannes Berg sizeof(baid_data->entries[0]) % SMP_CACHE_BYTES); 2552dfdddd92SJohannes Berg #endif 2553dfdddd92SJohannes Berg 2554dfdddd92SJohannes Berg /* 2555dfdddd92SJohannes Berg * Upward align the reorder buffer size to fill an entire cache 2556dfdddd92SJohannes Berg * line for each queue, to avoid sharing cache lines between 2557dfdddd92SJohannes Berg * different queues. 2558dfdddd92SJohannes Berg */ 2559dfdddd92SJohannes Berg reorder_buf_size = ALIGN(reorder_buf_size, SMP_CACHE_BYTES); 2560dfdddd92SJohannes Berg 256110b2b201SSara Sharon /* 256210b2b201SSara Sharon * Allocate here so if allocation fails we can bail out early 256310b2b201SSara Sharon * before starting the BA session in the firmware 256410b2b201SSara Sharon */ 2565b915c101SSara Sharon baid_data = kzalloc(sizeof(*baid_data) + 2566b915c101SSara Sharon mvm->trans->num_rx_queues * 2567dfdddd92SJohannes Berg reorder_buf_size, 2568b915c101SSara Sharon GFP_KERNEL); 256910b2b201SSara Sharon if (!baid_data) 257010b2b201SSara Sharon return -ENOMEM; 2571dfdddd92SJohannes Berg 2572dfdddd92SJohannes Berg /* 2573dfdddd92SJohannes Berg * This division is why we need the above BUILD_BUG_ON(), 2574dfdddd92SJohannes Berg * if that doesn't hold then this will not be right. 2575dfdddd92SJohannes Berg */ 2576dfdddd92SJohannes Berg baid_data->entries_per_queue = 2577dfdddd92SJohannes Berg reorder_buf_size / sizeof(baid_data->entries[0]); 257810b2b201SSara Sharon } 257910b2b201SSara Sharon 2580e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 2581e705c121SKalle Valo cmd.sta_id = mvm_sta->sta_id; 2582e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 2583e705c121SKalle Valo if (start) { 2584e705c121SKalle Valo cmd.add_immediate_ba_tid = (u8) tid; 2585e705c121SKalle Valo cmd.add_immediate_ba_ssn = cpu_to_le16(ssn); 2586514c3069SLuca Coelho cmd.rx_ba_window = cpu_to_le16(buf_size); 2587e705c121SKalle Valo } else { 2588e705c121SKalle Valo cmd.remove_immediate_ba_tid = (u8) tid; 2589e705c121SKalle Valo } 2590e705c121SKalle Valo cmd.modify_mask = start ? STA_MODIFY_ADD_BA_TID : 2591e705c121SKalle Valo STA_MODIFY_REMOVE_BA_TID; 2592e705c121SKalle Valo 2593e705c121SKalle Valo status = ADD_STA_SUCCESS; 2594854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 2595854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 2596e705c121SKalle Valo &cmd, &status); 2597e705c121SKalle Valo if (ret) 259810b2b201SSara Sharon goto out_free; 2599e705c121SKalle Valo 2600837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 2601e705c121SKalle Valo case ADD_STA_SUCCESS: 260235263a03SSara Sharon IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n", 2603e705c121SKalle Valo start ? "start" : "stopp"); 2604e705c121SKalle Valo break; 2605e705c121SKalle Valo case ADD_STA_IMMEDIATE_BA_FAILURE: 2606e705c121SKalle Valo IWL_WARN(mvm, "RX BA Session refused by fw\n"); 2607e705c121SKalle Valo ret = -ENOSPC; 2608e705c121SKalle Valo break; 2609e705c121SKalle Valo default: 2610e705c121SKalle Valo ret = -EIO; 2611e705c121SKalle Valo IWL_ERR(mvm, "RX BA Session failed %sing, status 0x%x\n", 2612e705c121SKalle Valo start ? "start" : "stopp", status); 2613e705c121SKalle Valo break; 2614e705c121SKalle Valo } 2615e705c121SKalle Valo 261610b2b201SSara Sharon if (ret) 261710b2b201SSara Sharon goto out_free; 261810b2b201SSara Sharon 261910b2b201SSara Sharon if (start) { 262010b2b201SSara Sharon u8 baid; 262110b2b201SSara Sharon 2622e705c121SKalle Valo mvm->rx_ba_sessions++; 262310b2b201SSara Sharon 262410b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 262510b2b201SSara Sharon return 0; 262610b2b201SSara Sharon 262710b2b201SSara Sharon if (WARN_ON(!(status & IWL_ADD_STA_BAID_VALID_MASK))) { 262810b2b201SSara Sharon ret = -EINVAL; 262910b2b201SSara Sharon goto out_free; 263010b2b201SSara Sharon } 263110b2b201SSara Sharon baid = (u8)((status & IWL_ADD_STA_BAID_MASK) >> 263210b2b201SSara Sharon IWL_ADD_STA_BAID_SHIFT); 263310b2b201SSara Sharon baid_data->baid = baid; 263410b2b201SSara Sharon baid_data->timeout = timeout; 263510b2b201SSara Sharon baid_data->last_rx = jiffies; 26368cef5344SKees Cook baid_data->rcu_ptr = &mvm->baid_map[baid]; 26378cef5344SKees Cook timer_setup(&baid_data->session_timer, 26388cef5344SKees Cook iwl_mvm_rx_agg_session_expired, 0); 263910b2b201SSara Sharon baid_data->mvm = mvm; 264010b2b201SSara Sharon baid_data->tid = tid; 264110b2b201SSara Sharon baid_data->sta_id = mvm_sta->sta_id; 264210b2b201SSara Sharon 264310b2b201SSara Sharon mvm_sta->tid_to_baid[tid] = baid; 264410b2b201SSara Sharon if (timeout) 264510b2b201SSara Sharon mod_timer(&baid_data->session_timer, 264610b2b201SSara Sharon TU_TO_EXP_TIME(timeout * 2)); 264710b2b201SSara Sharon 26483f1c4c58SSara Sharon iwl_mvm_init_reorder_buffer(mvm, baid_data, ssn, buf_size); 264910b2b201SSara Sharon /* 265010b2b201SSara Sharon * protect the BA data with RCU to cover a case where our 265110b2b201SSara Sharon * internal RX sync mechanism will timeout (not that it's 265210b2b201SSara Sharon * supposed to happen) and we will free the session data while 265310b2b201SSara Sharon * RX is being processed in parallel 265410b2b201SSara Sharon */ 265535263a03SSara Sharon IWL_DEBUG_HT(mvm, "Sta %d(%d) is assigned to BAID %d\n", 265635263a03SSara Sharon mvm_sta->sta_id, tid, baid); 265710b2b201SSara Sharon WARN_ON(rcu_access_pointer(mvm->baid_map[baid])); 265810b2b201SSara Sharon rcu_assign_pointer(mvm->baid_map[baid], baid_data); 265960dec523SSara Sharon } else { 266010b2b201SSara Sharon u8 baid = mvm_sta->tid_to_baid[tid]; 266110b2b201SSara Sharon 266260dec523SSara Sharon if (mvm->rx_ba_sessions > 0) 2663e705c121SKalle Valo /* check that restart flow didn't zero the counter */ 2664e705c121SKalle Valo mvm->rx_ba_sessions--; 266510b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 266610b2b201SSara Sharon return 0; 2667e705c121SKalle Valo 266810b2b201SSara Sharon if (WARN_ON(baid == IWL_RX_REORDER_DATA_INVALID_BAID)) 266910b2b201SSara Sharon return -EINVAL; 267010b2b201SSara Sharon 267110b2b201SSara Sharon baid_data = rcu_access_pointer(mvm->baid_map[baid]); 267210b2b201SSara Sharon if (WARN_ON(!baid_data)) 267310b2b201SSara Sharon return -EINVAL; 267410b2b201SSara Sharon 267510b2b201SSara Sharon /* synchronize all rx queues so we can safely delete */ 2676b915c101SSara Sharon iwl_mvm_free_reorder(mvm, baid_data); 267710b2b201SSara Sharon del_timer_sync(&baid_data->session_timer); 267810b2b201SSara Sharon RCU_INIT_POINTER(mvm->baid_map[baid], NULL); 267910b2b201SSara Sharon kfree_rcu(baid_data, rcu_head); 268035263a03SSara Sharon IWL_DEBUG_HT(mvm, "BAID %d is free\n", baid); 268110b2b201SSara Sharon } 268210b2b201SSara Sharon return 0; 268310b2b201SSara Sharon 268410b2b201SSara Sharon out_free: 268510b2b201SSara Sharon kfree(baid_data); 2686e705c121SKalle Valo return ret; 2687e705c121SKalle Valo } 2688e705c121SKalle Valo 26899794c64fSLiad Kaufman int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2690e705c121SKalle Valo int tid, u8 queue, bool start) 2691e705c121SKalle Valo { 2692e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2693e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 2694e705c121SKalle Valo int ret; 2695e705c121SKalle Valo u32 status; 2696e705c121SKalle Valo 2697e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2698e705c121SKalle Valo 2699e705c121SKalle Valo if (start) { 2700e705c121SKalle Valo mvm_sta->tfd_queue_msk |= BIT(queue); 2701e705c121SKalle Valo mvm_sta->tid_disable_agg &= ~BIT(tid); 2702e705c121SKalle Valo } else { 2703cf961e16SLiad Kaufman /* In DQA-mode the queue isn't removed on agg termination */ 2704e705c121SKalle Valo mvm_sta->tid_disable_agg |= BIT(tid); 2705e705c121SKalle Valo } 2706e705c121SKalle Valo 2707e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 2708e705c121SKalle Valo cmd.sta_id = mvm_sta->sta_id; 2709e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 2710bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) 2711bb49701bSSara Sharon cmd.modify_mask = STA_MODIFY_QUEUES; 2712bb49701bSSara Sharon cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 2713e705c121SKalle Valo cmd.tfd_queue_msk = cpu_to_le32(mvm_sta->tfd_queue_msk); 2714e705c121SKalle Valo cmd.tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg); 2715e705c121SKalle Valo 2716e705c121SKalle Valo status = ADD_STA_SUCCESS; 2717854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 2718854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 2719e705c121SKalle Valo &cmd, &status); 2720e705c121SKalle Valo if (ret) 2721e705c121SKalle Valo return ret; 2722e705c121SKalle Valo 2723837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 2724e705c121SKalle Valo case ADD_STA_SUCCESS: 2725e705c121SKalle Valo break; 2726e705c121SKalle Valo default: 2727e705c121SKalle Valo ret = -EIO; 2728e705c121SKalle Valo IWL_ERR(mvm, "TX BA Session failed %sing, status 0x%x\n", 2729e705c121SKalle Valo start ? "start" : "stopp", status); 2730e705c121SKalle Valo break; 2731e705c121SKalle Valo } 2732e705c121SKalle Valo 2733e705c121SKalle Valo return ret; 2734e705c121SKalle Valo } 2735e705c121SKalle Valo 2736e705c121SKalle Valo const u8 tid_to_mac80211_ac[] = { 2737e705c121SKalle Valo IEEE80211_AC_BE, 2738e705c121SKalle Valo IEEE80211_AC_BK, 2739e705c121SKalle Valo IEEE80211_AC_BK, 2740e705c121SKalle Valo IEEE80211_AC_BE, 2741e705c121SKalle Valo IEEE80211_AC_VI, 2742e705c121SKalle Valo IEEE80211_AC_VI, 2743e705c121SKalle Valo IEEE80211_AC_VO, 2744e705c121SKalle Valo IEEE80211_AC_VO, 27459794c64fSLiad Kaufman IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 2746e705c121SKalle Valo }; 2747e705c121SKalle Valo 2748e705c121SKalle Valo static const u8 tid_to_ucode_ac[] = { 2749e705c121SKalle Valo AC_BE, 2750e705c121SKalle Valo AC_BK, 2751e705c121SKalle Valo AC_BK, 2752e705c121SKalle Valo AC_BE, 2753e705c121SKalle Valo AC_VI, 2754e705c121SKalle Valo AC_VI, 2755e705c121SKalle Valo AC_VO, 2756e705c121SKalle Valo AC_VO, 2757e705c121SKalle Valo }; 2758e705c121SKalle Valo 2759e705c121SKalle Valo int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2760e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 *ssn) 2761e705c121SKalle Valo { 2762e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2763e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 2764dd32162dSLiad Kaufman u16 normalized_ssn; 2765b0d795a9SMordechay Goodstein u16 txq_id; 2766e705c121SKalle Valo int ret; 2767e705c121SKalle Valo 2768e705c121SKalle Valo if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT)) 2769e705c121SKalle Valo return -EINVAL; 2770e705c121SKalle Valo 2771bd800e41SNaftali Goldstein if (mvmsta->tid_data[tid].state != IWL_AGG_QUEUED && 2772bd800e41SNaftali Goldstein mvmsta->tid_data[tid].state != IWL_AGG_OFF) { 2773bd800e41SNaftali Goldstein IWL_ERR(mvm, 2774bd800e41SNaftali Goldstein "Start AGG when state is not IWL_AGG_QUEUED or IWL_AGG_OFF %d!\n", 2775e705c121SKalle Valo mvmsta->tid_data[tid].state); 2776e705c121SKalle Valo return -ENXIO; 2777e705c121SKalle Valo } 2778e705c121SKalle Valo 2779e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2780e705c121SKalle Valo 2781bd8f3fc6SLiad Kaufman if (mvmsta->tid_data[tid].txq_id == IWL_MVM_INVALID_QUEUE && 2782bd8f3fc6SLiad Kaufman iwl_mvm_has_new_tx_api(mvm)) { 2783bd8f3fc6SLiad Kaufman u8 ac = tid_to_mac80211_ac[tid]; 2784bd8f3fc6SLiad Kaufman 2785bd8f3fc6SLiad Kaufman ret = iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 2786bd8f3fc6SLiad Kaufman if (ret) 2787bd8f3fc6SLiad Kaufman return ret; 2788bd8f3fc6SLiad Kaufman } 2789bd8f3fc6SLiad Kaufman 2790e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2791e705c121SKalle Valo 2792cf961e16SLiad Kaufman /* 2793cf961e16SLiad Kaufman * Note the possible cases: 27944a6d2e52SAvraham Stern * 1. An enabled TXQ - TXQ needs to become agg'ed 27954a6d2e52SAvraham Stern * 2. The TXQ hasn't yet been enabled, so find a free one and mark 27964a6d2e52SAvraham Stern * it as reserved 2797cf961e16SLiad Kaufman */ 2798cf961e16SLiad Kaufman txq_id = mvmsta->tid_data[tid].txq_id; 279934e10860SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) { 2800b0d795a9SMordechay Goodstein ret = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 2801c8f54701SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 2802c8f54701SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 2803b0d795a9SMordechay Goodstein if (ret < 0) { 2804e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate agg queue\n"); 2805f3f240f9SJohannes Berg goto out; 2806e705c121SKalle Valo } 2807cf961e16SLiad Kaufman 2808b0d795a9SMordechay Goodstein txq_id = ret; 2809b0d795a9SMordechay Goodstein 2810cf961e16SLiad Kaufman /* TXQ hasn't yet been enabled, so mark it only as reserved */ 2811cf961e16SLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_RESERVED; 2812b0d795a9SMordechay Goodstein } else if (WARN_ON(txq_id >= IWL_MAX_HW_QUEUES)) { 2813b0d795a9SMordechay Goodstein ret = -ENXIO; 2814b0d795a9SMordechay Goodstein IWL_ERR(mvm, "tid_id %d out of range (0, %d)!\n", 2815b0d795a9SMordechay Goodstein tid, IWL_MAX_HW_QUEUES - 1); 2816b0d795a9SMordechay Goodstein goto out; 2817b0d795a9SMordechay Goodstein 28184a6d2e52SAvraham Stern } else if (unlikely(mvm->queue_info[txq_id].status == 28194a6d2e52SAvraham Stern IWL_MVM_QUEUE_SHARED)) { 28204a6d2e52SAvraham Stern ret = -ENXIO; 28214a6d2e52SAvraham Stern IWL_DEBUG_TX_QUEUES(mvm, 28224a6d2e52SAvraham Stern "Can't start tid %d agg on shared queue!\n", 28234a6d2e52SAvraham Stern tid); 2824f3f240f9SJohannes Berg goto out; 2825cf961e16SLiad Kaufman } 28269f9af3d7SLiad Kaufman 2827cf961e16SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 2828cf961e16SLiad Kaufman "AGG for tid %d will be on queue #%d\n", 2829cf961e16SLiad Kaufman tid, txq_id); 2830cf961e16SLiad Kaufman 2831e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 2832e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 2833e705c121SKalle Valo tid_data->txq_id = txq_id; 2834e705c121SKalle Valo *ssn = tid_data->ssn; 2835e705c121SKalle Valo 2836e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 2837e705c121SKalle Valo "Start AGG: sta %d tid %d queue %d - ssn = %d, next_recl = %d\n", 2838e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->ssn, 2839e705c121SKalle Valo tid_data->next_reclaimed); 2840e705c121SKalle Valo 2841dd32162dSLiad Kaufman /* 28422f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 2843dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 2844dd32162dSLiad Kaufman */ 2845dd32162dSLiad Kaufman normalized_ssn = tid_data->ssn; 2846286ca8ebSLuca Coelho if (mvm->trans->trans_cfg->gen2) 2847dd32162dSLiad Kaufman normalized_ssn &= 0xff; 2848dd32162dSLiad Kaufman 2849dd32162dSLiad Kaufman if (normalized_ssn == tid_data->next_reclaimed) { 2850e705c121SKalle Valo tid_data->state = IWL_AGG_STARTING; 28512ce113deSJohannes Berg ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 2852e705c121SKalle Valo } else { 2853e705c121SKalle Valo tid_data->state = IWL_EMPTYING_HW_QUEUE_ADDBA; 28547e0ca723SMordechay Goodstein ret = IEEE80211_AMPDU_TX_START_DELAY_ADDBA; 28552ce113deSJohannes Berg } 2856e705c121SKalle Valo 28579f9af3d7SLiad Kaufman out: 2858e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2859e705c121SKalle Valo 2860e705c121SKalle Valo return ret; 2861e705c121SKalle Valo } 2862e705c121SKalle Valo 2863e705c121SKalle Valo int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2864514c3069SLuca Coelho struct ieee80211_sta *sta, u16 tid, u16 buf_size, 2865bb81bb68SEmmanuel Grumbach bool amsdu) 2866e705c121SKalle Valo { 2867e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2868e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2869e705c121SKalle Valo unsigned int wdg_timeout = 2870e705c121SKalle Valo iwl_mvm_get_wd_timeout(mvm, vif, sta->tdls, false); 2871eea76c36SEmmanuel Grumbach int queue, ret; 2872cf961e16SLiad Kaufman bool alloc_queue = true; 28739f9af3d7SLiad Kaufman enum iwl_mvm_queue_status queue_status; 2874e705c121SKalle Valo u16 ssn; 2875e705c121SKalle Valo 2876eea76c36SEmmanuel Grumbach struct iwl_trans_txq_scd_cfg cfg = { 2877eea76c36SEmmanuel Grumbach .sta_id = mvmsta->sta_id, 2878eea76c36SEmmanuel Grumbach .tid = tid, 2879eea76c36SEmmanuel Grumbach .frame_limit = buf_size, 2880eea76c36SEmmanuel Grumbach .aggregate = true, 2881eea76c36SEmmanuel Grumbach }; 2882eea76c36SEmmanuel Grumbach 2883ecaf71deSGregory Greenman /* 2884ecaf71deSGregory Greenman * When FW supports TLC_OFFLOAD, it also implements Tx aggregation 2885ecaf71deSGregory Greenman * manager, so this function should never be called in this case. 2886ecaf71deSGregory Greenman */ 28874243edb4SEmmanuel Grumbach if (WARN_ON_ONCE(iwl_mvm_has_tlc_offload(mvm))) 2888ecaf71deSGregory Greenman return -EINVAL; 2889ecaf71deSGregory Greenman 2890e705c121SKalle Valo BUILD_BUG_ON((sizeof(mvmsta->agg_tids) * BITS_PER_BYTE) 2891e705c121SKalle Valo != IWL_MAX_TID_COUNT); 2892e705c121SKalle Valo 2893e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2894e705c121SKalle Valo ssn = tid_data->ssn; 2895e705c121SKalle Valo queue = tid_data->txq_id; 2896e705c121SKalle Valo tid_data->state = IWL_AGG_ON; 2897e705c121SKalle Valo mvmsta->agg_tids |= BIT(tid); 2898e705c121SKalle Valo tid_data->ssn = 0xffff; 2899bb81bb68SEmmanuel Grumbach tid_data->amsdu_in_ampdu_allowed = amsdu; 2900e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2901e705c121SKalle Valo 290234e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 290334e10860SSara Sharon /* 29040ec9257bSSara Sharon * If there is no queue for this tid, iwl_mvm_sta_tx_agg_start() 29050ec9257bSSara Sharon * would have failed, so if we are here there is no need to 29060ec9257bSSara Sharon * allocate a queue. 29070ec9257bSSara Sharon * However, if aggregation size is different than the default 29080ec9257bSSara Sharon * size, the scheduler should be reconfigured. 29090ec9257bSSara Sharon * We cannot do this with the new TX API, so return unsupported 29100ec9257bSSara Sharon * for now, until it will be offloaded to firmware.. 29110ec9257bSSara Sharon * Note that if SCD default value changes - this condition 29120ec9257bSSara Sharon * should be updated as well. 291334e10860SSara Sharon */ 29140ec9257bSSara Sharon if (buf_size < IWL_FRAME_LIMIT) 291534e10860SSara Sharon return -ENOTSUPP; 291634e10860SSara Sharon 291734e10860SSara Sharon ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 291834e10860SSara Sharon if (ret) 291934e10860SSara Sharon return -EIO; 292034e10860SSara Sharon goto out; 292134e10860SSara Sharon } 292234e10860SSara Sharon 2923eea76c36SEmmanuel Grumbach cfg.fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 2924e705c121SKalle Valo 29259f9af3d7SLiad Kaufman queue_status = mvm->queue_info[queue].status; 29269f9af3d7SLiad Kaufman 2927cf961e16SLiad Kaufman /* Maybe there is no need to even alloc a queue... */ 2928cf961e16SLiad Kaufman if (mvm->queue_info[queue].status == IWL_MVM_QUEUE_READY) 2929cf961e16SLiad Kaufman alloc_queue = false; 2930cf961e16SLiad Kaufman 2931cf961e16SLiad Kaufman /* 2932cf961e16SLiad Kaufman * Only reconfig the SCD for the queue if the window size has 2933cf961e16SLiad Kaufman * changed from current (become smaller) 2934cf961e16SLiad Kaufman */ 29350ec9257bSSara Sharon if (!alloc_queue && buf_size < IWL_FRAME_LIMIT) { 2936cf961e16SLiad Kaufman /* 2937cf961e16SLiad Kaufman * If reconfiguring an existing queue, it first must be 2938cf961e16SLiad Kaufman * drained 2939cf961e16SLiad Kaufman */ 2940a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 2941cf961e16SLiad Kaufman BIT(queue)); 2942cf961e16SLiad Kaufman if (ret) { 2943cf961e16SLiad Kaufman IWL_ERR(mvm, 2944cf961e16SLiad Kaufman "Error draining queue before reconfig\n"); 2945cf961e16SLiad Kaufman return ret; 2946cf961e16SLiad Kaufman } 2947cf961e16SLiad Kaufman 2948cf961e16SLiad Kaufman ret = iwl_mvm_reconfig_scd(mvm, queue, cfg.fifo, 2949cf961e16SLiad Kaufman mvmsta->sta_id, tid, 2950cf961e16SLiad Kaufman buf_size, ssn); 2951cf961e16SLiad Kaufman if (ret) { 2952cf961e16SLiad Kaufman IWL_ERR(mvm, 2953cf961e16SLiad Kaufman "Error reconfiguring TXQ #%d\n", queue); 2954cf961e16SLiad Kaufman return ret; 2955cf961e16SLiad Kaufman } 2956cf961e16SLiad Kaufman } 2957cf961e16SLiad Kaufman 2958cf961e16SLiad Kaufman if (alloc_queue) 2959cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, queue, ssn, 2960cf961e16SLiad Kaufman &cfg, wdg_timeout); 2961e705c121SKalle Valo 29629f9af3d7SLiad Kaufman /* Send ADD_STA command to enable aggs only if the queue isn't shared */ 29639f9af3d7SLiad Kaufman if (queue_status != IWL_MVM_QUEUE_SHARED) { 2964e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 2965e705c121SKalle Valo if (ret) 2966e705c121SKalle Valo return -EIO; 29679f9af3d7SLiad Kaufman } 2968e705c121SKalle Valo 2969e705c121SKalle Valo /* No need to mark as reserved */ 2970cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 2971e705c121SKalle Valo 297234e10860SSara Sharon out: 2973e705c121SKalle Valo /* 2974e705c121SKalle Valo * Even though in theory the peer could have different 2975e705c121SKalle Valo * aggregation reorder buffer sizes for different sessions, 2976e705c121SKalle Valo * our ucode doesn't allow for that and has a global limit 2977e705c121SKalle Valo * for each station. Therefore, use the minimum of all the 2978e705c121SKalle Valo * aggregation sessions and our default value. 2979e705c121SKalle Valo */ 2980e705c121SKalle Valo mvmsta->max_agg_bufsize = 2981e705c121SKalle Valo min(mvmsta->max_agg_bufsize, buf_size); 2982ecaf71deSGregory Greenman mvmsta->lq_sta.rs_drv.lq.agg_frame_cnt_limit = mvmsta->max_agg_bufsize; 2983e705c121SKalle Valo 2984e705c121SKalle Valo IWL_DEBUG_HT(mvm, "Tx aggregation enabled on ra = %pM tid = %d\n", 2985e705c121SKalle Valo sta->addr, tid); 2986e705c121SKalle Valo 2987cd4d6b0bSGregory Greenman return iwl_mvm_send_lq_cmd(mvm, &mvmsta->lq_sta.rs_drv.lq); 2988e705c121SKalle Valo } 2989e705c121SKalle Valo 299034e10860SSara Sharon static void iwl_mvm_unreserve_agg_queue(struct iwl_mvm *mvm, 299134e10860SSara Sharon struct iwl_mvm_sta *mvmsta, 29924b387906SAvraham Stern struct iwl_mvm_tid_data *tid_data) 299334e10860SSara Sharon { 29944b387906SAvraham Stern u16 txq_id = tid_data->txq_id; 29954b387906SAvraham Stern 2996f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 2997f3f240f9SJohannes Berg 299834e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 299934e10860SSara Sharon return; 300034e10860SSara Sharon 300134e10860SSara Sharon /* 300234e10860SSara Sharon * The TXQ is marked as reserved only if no traffic came through yet 300334e10860SSara Sharon * This means no traffic has been sent on this TID (agg'd or not), so 300434e10860SSara Sharon * we no longer have use for the queue. Since it hasn't even been 300534e10860SSara Sharon * allocated through iwl_mvm_enable_txq, so we can just mark it back as 300634e10860SSara Sharon * free. 300734e10860SSara Sharon */ 30084b387906SAvraham Stern if (mvm->queue_info[txq_id].status == IWL_MVM_QUEUE_RESERVED) { 300934e10860SSara Sharon mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_FREE; 30104b387906SAvraham Stern tid_data->txq_id = IWL_MVM_INVALID_QUEUE; 30114b387906SAvraham Stern } 301234e10860SSara Sharon } 301334e10860SSara Sharon 3014e705c121SKalle Valo int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3015e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3016e705c121SKalle Valo { 3017e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3018e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3019e705c121SKalle Valo u16 txq_id; 3020e705c121SKalle Valo int err; 3021e705c121SKalle Valo 3022e705c121SKalle Valo /* 3023e705c121SKalle Valo * If mac80211 is cleaning its state, then say that we finished since 3024e705c121SKalle Valo * our state has been cleared anyway. 3025e705c121SKalle Valo */ 3026e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3027e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3028e705c121SKalle Valo return 0; 3029e705c121SKalle Valo } 3030e705c121SKalle Valo 3031e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3032e705c121SKalle Valo 3033e705c121SKalle Valo txq_id = tid_data->txq_id; 3034e705c121SKalle Valo 3035e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Stop AGG: sta %d tid %d q %d state %d\n", 3036e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 3037e705c121SKalle Valo 3038e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3039e705c121SKalle Valo 30404b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3041e705c121SKalle Valo 3042e705c121SKalle Valo switch (tid_data->state) { 3043e705c121SKalle Valo case IWL_AGG_ON: 3044e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3045e705c121SKalle Valo 3046e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 3047e705c121SKalle Valo "ssn = %d, next_recl = %d\n", 3048e705c121SKalle Valo tid_data->ssn, tid_data->next_reclaimed); 3049e705c121SKalle Valo 3050e705c121SKalle Valo tid_data->ssn = 0xffff; 3051e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3052e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3053e705c121SKalle Valo 3054e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3055e705c121SKalle Valo 3056e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3057e705c121SKalle Valo return 0; 3058e705c121SKalle Valo case IWL_AGG_STARTING: 3059e705c121SKalle Valo case IWL_EMPTYING_HW_QUEUE_ADDBA: 3060e705c121SKalle Valo /* 3061e705c121SKalle Valo * The agg session has been stopped before it was set up. This 3062e705c121SKalle Valo * can happen when the AddBA timer times out for example. 3063e705c121SKalle Valo */ 3064e705c121SKalle Valo 3065e705c121SKalle Valo /* No barriers since we are under mutex */ 3066e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3067e705c121SKalle Valo 3068e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3069e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3070e705c121SKalle Valo err = 0; 3071e705c121SKalle Valo break; 3072e705c121SKalle Valo default: 3073e705c121SKalle Valo IWL_ERR(mvm, 3074e705c121SKalle Valo "Stopping AGG while state not ON or starting for %d on %d (%d)\n", 3075e705c121SKalle Valo mvmsta->sta_id, tid, tid_data->state); 3076e705c121SKalle Valo IWL_ERR(mvm, 3077e705c121SKalle Valo "\ttid_data->txq_id = %d\n", tid_data->txq_id); 3078e705c121SKalle Valo err = -EINVAL; 3079e705c121SKalle Valo } 3080e705c121SKalle Valo 3081e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3082e705c121SKalle Valo 3083e705c121SKalle Valo return err; 3084e705c121SKalle Valo } 3085e705c121SKalle Valo 3086e705c121SKalle Valo int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3087e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3088e705c121SKalle Valo { 3089e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3090e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3091e705c121SKalle Valo u16 txq_id; 3092e705c121SKalle Valo enum iwl_mvm_agg_state old_state; 3093e705c121SKalle Valo 3094e705c121SKalle Valo /* 3095e705c121SKalle Valo * First set the agg state to OFF to avoid calling 3096e705c121SKalle Valo * ieee80211_stop_tx_ba_cb in iwl_mvm_check_ratid_empty. 3097e705c121SKalle Valo */ 3098e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3099e705c121SKalle Valo txq_id = tid_data->txq_id; 3100e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Flush AGG: sta %d tid %d q %d state %d\n", 3101e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 3102e705c121SKalle Valo old_state = tid_data->state; 3103e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3104e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3105e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3106e705c121SKalle Valo 31074b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3108e705c121SKalle Valo 3109e705c121SKalle Valo if (old_state >= IWL_AGG_ON) { 3110e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, true); 3111d167e81aSMordechai Goodstein 3112d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) { 3113d167e81aSMordechai Goodstein if (iwl_mvm_flush_sta_tids(mvm, mvmsta->sta_id, 3114d167e81aSMordechai Goodstein BIT(tid), 0)) 3115d167e81aSMordechai Goodstein IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 3116d167e81aSMordechai Goodstein iwl_trans_wait_txq_empty(mvm->trans, txq_id); 3117d167e81aSMordechai Goodstein } else { 3118e705c121SKalle Valo if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id), 0)) 3119e705c121SKalle Valo IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 31200b90964aSSara Sharon iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(txq_id)); 3121d167e81aSMordechai Goodstein } 3122d6d517b7SSara Sharon 3123e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, false); 3124e705c121SKalle Valo 3125e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3126e705c121SKalle Valo } 3127e705c121SKalle Valo 3128e705c121SKalle Valo return 0; 3129e705c121SKalle Valo } 3130e705c121SKalle Valo 3131e705c121SKalle Valo static int iwl_mvm_set_fw_key_idx(struct iwl_mvm *mvm) 3132e705c121SKalle Valo { 3133e705c121SKalle Valo int i, max = -1, max_offs = -1; 3134e705c121SKalle Valo 3135e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3136e705c121SKalle Valo 3137e705c121SKalle Valo /* Pick the unused key offset with the highest 'deleted' 3138e705c121SKalle Valo * counter. Every time a key is deleted, all the counters 3139e705c121SKalle Valo * are incremented and the one that was just deleted is 3140e705c121SKalle Valo * reset to zero. Thus, the highest counter is the one 3141e705c121SKalle Valo * that was deleted longest ago. Pick that one. 3142e705c121SKalle Valo */ 3143e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3144e705c121SKalle Valo if (test_bit(i, mvm->fw_key_table)) 3145e705c121SKalle Valo continue; 3146e705c121SKalle Valo if (mvm->fw_key_deleted[i] > max) { 3147e705c121SKalle Valo max = mvm->fw_key_deleted[i]; 3148e705c121SKalle Valo max_offs = i; 3149e705c121SKalle Valo } 3150e705c121SKalle Valo } 3151e705c121SKalle Valo 3152e705c121SKalle Valo if (max_offs < 0) 3153e705c121SKalle Valo return STA_KEY_IDX_INVALID; 3154e705c121SKalle Valo 3155e705c121SKalle Valo return max_offs; 3156e705c121SKalle Valo } 3157e705c121SKalle Valo 31585f7a1847SJohannes Berg static struct iwl_mvm_sta *iwl_mvm_get_key_sta(struct iwl_mvm *mvm, 31594615fd15SEmmanuel Grumbach struct ieee80211_vif *vif, 3160e705c121SKalle Valo struct ieee80211_sta *sta) 3161e705c121SKalle Valo { 3162e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3163e705c121SKalle Valo 31645f7a1847SJohannes Berg if (sta) 31655f7a1847SJohannes Berg return iwl_mvm_sta_from_mac80211(sta); 3166e705c121SKalle Valo 3167e705c121SKalle Valo /* 3168e705c121SKalle Valo * The device expects GTKs for station interfaces to be 3169e705c121SKalle Valo * installed as GTKs for the AP station. If we have no 3170e705c121SKalle Valo * station ID, then use AP's station ID. 3171e705c121SKalle Valo */ 3172e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 31730ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 31744615fd15SEmmanuel Grumbach u8 sta_id = mvmvif->ap_sta_id; 31754615fd15SEmmanuel Grumbach 31767d6a1ab6SEmmanuel Grumbach sta = rcu_dereference_check(mvm->fw_id_to_mac_id[sta_id], 31777d6a1ab6SEmmanuel Grumbach lockdep_is_held(&mvm->mutex)); 31787d6a1ab6SEmmanuel Grumbach 31794615fd15SEmmanuel Grumbach /* 31804615fd15SEmmanuel Grumbach * It is possible that the 'sta' parameter is NULL, 31814615fd15SEmmanuel Grumbach * for example when a GTK is removed - the sta_id will then 31824615fd15SEmmanuel Grumbach * be the AP ID, and no station was passed by mac80211. 31834615fd15SEmmanuel Grumbach */ 31847d6a1ab6SEmmanuel Grumbach if (IS_ERR_OR_NULL(sta)) 31857d6a1ab6SEmmanuel Grumbach return NULL; 31867d6a1ab6SEmmanuel Grumbach 31877d6a1ab6SEmmanuel Grumbach return iwl_mvm_sta_from_mac80211(sta); 31884615fd15SEmmanuel Grumbach } 3189e705c121SKalle Valo 31905f7a1847SJohannes Berg return NULL; 3191e705c121SKalle Valo } 3192e705c121SKalle Valo 3193e705c121SKalle Valo static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm, 319485aeb58cSDavid Spinadel u32 sta_id, 319545c458b4SSara Sharon struct ieee80211_key_conf *key, bool mcast, 31964615fd15SEmmanuel Grumbach u32 tkip_iv32, u16 *tkip_p1k, u32 cmd_flags, 31974883145aSEmmanuel Grumbach u8 key_offset, bool mfp) 3198e705c121SKalle Valo { 319945c458b4SSara Sharon union { 320045c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 320145c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd cmd; 320245c458b4SSara Sharon } u = {}; 3203e705c121SKalle Valo __le16 key_flags; 3204e705c121SKalle Valo int ret; 3205e705c121SKalle Valo u32 status; 3206e705c121SKalle Valo u16 keyidx; 320745c458b4SSara Sharon u64 pn = 0; 320845c458b4SSara Sharon int i, size; 320945c458b4SSara Sharon bool new_api = fw_has_api(&mvm->fw->ucode_capa, 321045c458b4SSara Sharon IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 3211e705c121SKalle Valo 321285aeb58cSDavid Spinadel if (sta_id == IWL_MVM_INVALID_STA) 321385aeb58cSDavid Spinadel return -EINVAL; 321485aeb58cSDavid Spinadel 321545c458b4SSara Sharon keyidx = (key->keyidx << STA_KEY_FLG_KEYID_POS) & 3216e705c121SKalle Valo STA_KEY_FLG_KEYID_MSK; 3217e705c121SKalle Valo key_flags = cpu_to_le16(keyidx); 3218e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_KEY_MAP); 3219e705c121SKalle Valo 322045c458b4SSara Sharon switch (key->cipher) { 3221e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 3222e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_TKIP); 322345c458b4SSara Sharon if (new_api) { 322445c458b4SSara Sharon memcpy((void *)&u.cmd.tx_mic_key, 322545c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], 322645c458b4SSara Sharon IWL_MIC_KEY_SIZE); 322745c458b4SSara Sharon 322845c458b4SSara Sharon memcpy((void *)&u.cmd.rx_mic_key, 322945c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], 323045c458b4SSara Sharon IWL_MIC_KEY_SIZE); 323145c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 323245c458b4SSara Sharon 323345c458b4SSara Sharon } else { 323445c458b4SSara Sharon u.cmd_v1.tkip_rx_tsc_byte2 = tkip_iv32; 3235e705c121SKalle Valo for (i = 0; i < 5; i++) 323645c458b4SSara Sharon u.cmd_v1.tkip_rx_ttak[i] = 323745c458b4SSara Sharon cpu_to_le16(tkip_p1k[i]); 323845c458b4SSara Sharon } 323945c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3240e705c121SKalle Valo break; 3241e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 3242e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_CCM); 324345c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 324445c458b4SSara Sharon if (new_api) 324545c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 3246e705c121SKalle Valo break; 3247e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 3248e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_13BYTES); 32495a2abdcaSGustavo A. R. Silva fallthrough; 3250e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 3251e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP); 325245c458b4SSara Sharon memcpy(u.cmd.common.key + 3, key->key, key->keylen); 3253e705c121SKalle Valo break; 32542a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 32552a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_KEY_32BYTES); 32565a2abdcaSGustavo A. R. Silva fallthrough; 32572a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 32582a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_GCMP); 325945c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 326045c458b4SSara Sharon if (new_api) 326145c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 32622a53d166SAyala Beker break; 3263e705c121SKalle Valo default: 3264e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_EXT); 326545c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3266e705c121SKalle Valo } 3267e705c121SKalle Valo 3268e705c121SKalle Valo if (mcast) 3269e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 32704883145aSEmmanuel Grumbach if (mfp) 32714883145aSEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MFP); 3272e705c121SKalle Valo 327345c458b4SSara Sharon u.cmd.common.key_offset = key_offset; 327445c458b4SSara Sharon u.cmd.common.key_flags = key_flags; 327585aeb58cSDavid Spinadel u.cmd.common.sta_id = sta_id; 327645c458b4SSara Sharon 327745c458b4SSara Sharon if (new_api) { 327845c458b4SSara Sharon u.cmd.transmit_seq_cnt = cpu_to_le64(pn); 327945c458b4SSara Sharon size = sizeof(u.cmd); 328045c458b4SSara Sharon } else { 328145c458b4SSara Sharon size = sizeof(u.cmd_v1); 328245c458b4SSara Sharon } 3283e705c121SKalle Valo 3284e705c121SKalle Valo status = ADD_STA_SUCCESS; 3285e705c121SKalle Valo if (cmd_flags & CMD_ASYNC) 328645c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA_KEY, CMD_ASYNC, size, 328745c458b4SSara Sharon &u.cmd); 3288e705c121SKalle Valo else 328945c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, 329045c458b4SSara Sharon &u.cmd, &status); 3291e705c121SKalle Valo 3292e705c121SKalle Valo switch (status) { 3293e705c121SKalle Valo case ADD_STA_SUCCESS: 3294e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "MODIFY_STA: set dynamic key passed\n"); 3295e705c121SKalle Valo break; 3296e705c121SKalle Valo default: 3297e705c121SKalle Valo ret = -EIO; 3298e705c121SKalle Valo IWL_ERR(mvm, "MODIFY_STA: set dynamic key failed\n"); 3299e705c121SKalle Valo break; 3300e705c121SKalle Valo } 3301e705c121SKalle Valo 3302e705c121SKalle Valo return ret; 3303e705c121SKalle Valo } 3304e705c121SKalle Valo 3305e705c121SKalle Valo static int iwl_mvm_send_sta_igtk(struct iwl_mvm *mvm, 3306e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3307e705c121SKalle Valo u8 sta_id, bool remove_key) 3308e705c121SKalle Valo { 3309e705c121SKalle Valo struct iwl_mvm_mgmt_mcast_key_cmd igtk_cmd = {}; 3310e705c121SKalle Valo 3311e705c121SKalle Valo /* verify the key details match the required command's expectations */ 33128e160ab8SAyala Beker if (WARN_ON((keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) || 33138e160ab8SAyala Beker (keyconf->keyidx != 4 && keyconf->keyidx != 5) || 33148e160ab8SAyala Beker (keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC && 33158e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_128 && 33168e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_256))) 33178e160ab8SAyala Beker return -EINVAL; 33188e160ab8SAyala Beker 33198e160ab8SAyala Beker if (WARN_ON(!iwl_mvm_has_new_rx_api(mvm) && 33208e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC)) 3321e705c121SKalle Valo return -EINVAL; 3322e705c121SKalle Valo 3323e705c121SKalle Valo igtk_cmd.key_id = cpu_to_le32(keyconf->keyidx); 3324e705c121SKalle Valo igtk_cmd.sta_id = cpu_to_le32(sta_id); 3325e705c121SKalle Valo 3326e705c121SKalle Valo if (remove_key) { 3327197288d5SLuca Coelho /* This is a valid situation for IGTK */ 3328197288d5SLuca Coelho if (sta_id == IWL_MVM_INVALID_STA) 3329197288d5SLuca Coelho return 0; 3330197288d5SLuca Coelho 3331e705c121SKalle Valo igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_NOT_VALID); 3332e705c121SKalle Valo } else { 3333e705c121SKalle Valo struct ieee80211_key_seq seq; 3334e705c121SKalle Valo const u8 *pn; 3335e705c121SKalle Valo 3336aa950524SAyala Beker switch (keyconf->cipher) { 3337aa950524SAyala Beker case WLAN_CIPHER_SUITE_AES_CMAC: 3338aa950524SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_CCM); 3339aa950524SAyala Beker break; 33408e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_128: 33418e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_256: 33428e160ab8SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_GCMP); 33438e160ab8SAyala Beker break; 3344aa950524SAyala Beker default: 3345aa950524SAyala Beker return -EINVAL; 3346aa950524SAyala Beker } 3347aa950524SAyala Beker 33488e160ab8SAyala Beker memcpy(igtk_cmd.igtk, keyconf->key, keyconf->keylen); 33498e160ab8SAyala Beker if (keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 33508e160ab8SAyala Beker igtk_cmd.ctrl_flags |= 33518e160ab8SAyala Beker cpu_to_le32(STA_KEY_FLG_KEY_32BYTES); 3352e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3353e705c121SKalle Valo pn = seq.aes_cmac.pn; 3354e705c121SKalle Valo igtk_cmd.receive_seq_cnt = cpu_to_le64(((u64) pn[5] << 0) | 3355e705c121SKalle Valo ((u64) pn[4] << 8) | 3356e705c121SKalle Valo ((u64) pn[3] << 16) | 3357e705c121SKalle Valo ((u64) pn[2] << 24) | 3358e705c121SKalle Valo ((u64) pn[1] << 32) | 3359e705c121SKalle Valo ((u64) pn[0] << 40)); 3360e705c121SKalle Valo } 3361e705c121SKalle Valo 3362e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "%s igtk for sta %u\n", 3363e705c121SKalle Valo remove_key ? "removing" : "installing", 3364e705c121SKalle Valo igtk_cmd.sta_id); 3365e705c121SKalle Valo 33668e160ab8SAyala Beker if (!iwl_mvm_has_new_rx_api(mvm)) { 33678e160ab8SAyala Beker struct iwl_mvm_mgmt_mcast_key_cmd_v1 igtk_cmd_v1 = { 33688e160ab8SAyala Beker .ctrl_flags = igtk_cmd.ctrl_flags, 33698e160ab8SAyala Beker .key_id = igtk_cmd.key_id, 33708e160ab8SAyala Beker .sta_id = igtk_cmd.sta_id, 33718e160ab8SAyala Beker .receive_seq_cnt = igtk_cmd.receive_seq_cnt 33728e160ab8SAyala Beker }; 33738e160ab8SAyala Beker 33748e160ab8SAyala Beker memcpy(igtk_cmd_v1.igtk, igtk_cmd.igtk, 33758e160ab8SAyala Beker ARRAY_SIZE(igtk_cmd_v1.igtk)); 33768e160ab8SAyala Beker return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 33778e160ab8SAyala Beker sizeof(igtk_cmd_v1), &igtk_cmd_v1); 33788e160ab8SAyala Beker } 3379e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 3380e705c121SKalle Valo sizeof(igtk_cmd), &igtk_cmd); 3381e705c121SKalle Valo } 3382e705c121SKalle Valo 3383e705c121SKalle Valo 3384e705c121SKalle Valo static inline u8 *iwl_mvm_get_mac_addr(struct iwl_mvm *mvm, 3385e705c121SKalle Valo struct ieee80211_vif *vif, 3386e705c121SKalle Valo struct ieee80211_sta *sta) 3387e705c121SKalle Valo { 3388e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3389e705c121SKalle Valo 3390e705c121SKalle Valo if (sta) 3391e705c121SKalle Valo return sta->addr; 3392e705c121SKalle Valo 3393e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 33940ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 3395e705c121SKalle Valo u8 sta_id = mvmvif->ap_sta_id; 3396e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 3397e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3398e705c121SKalle Valo return sta->addr; 3399e705c121SKalle Valo } 3400e705c121SKalle Valo 3401e705c121SKalle Valo 3402e705c121SKalle Valo return NULL; 3403e705c121SKalle Valo } 3404e705c121SKalle Valo 3405e705c121SKalle Valo static int __iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3406e705c121SKalle Valo struct ieee80211_vif *vif, 3407e705c121SKalle Valo struct ieee80211_sta *sta, 3408e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 34094615fd15SEmmanuel Grumbach u8 key_offset, 3410e705c121SKalle Valo bool mcast) 3411e705c121SKalle Valo { 3412e705c121SKalle Valo int ret; 3413e705c121SKalle Valo const u8 *addr; 3414e705c121SKalle Valo struct ieee80211_key_seq seq; 3415e705c121SKalle Valo u16 p1k[5]; 341685aeb58cSDavid Spinadel u32 sta_id; 34174883145aSEmmanuel Grumbach bool mfp = false; 341885aeb58cSDavid Spinadel 341985aeb58cSDavid Spinadel if (sta) { 342085aeb58cSDavid Spinadel struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 342185aeb58cSDavid Spinadel 342285aeb58cSDavid Spinadel sta_id = mvm_sta->sta_id; 34234883145aSEmmanuel Grumbach mfp = sta->mfp; 342485aeb58cSDavid Spinadel } else if (vif->type == NL80211_IFTYPE_AP && 342585aeb58cSDavid Spinadel !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { 342685aeb58cSDavid Spinadel struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 342785aeb58cSDavid Spinadel 342885aeb58cSDavid Spinadel sta_id = mvmvif->mcast_sta.sta_id; 342985aeb58cSDavid Spinadel } else { 343085aeb58cSDavid Spinadel IWL_ERR(mvm, "Failed to find station id\n"); 343185aeb58cSDavid Spinadel return -EINVAL; 343285aeb58cSDavid Spinadel } 3433e705c121SKalle Valo 3434e705c121SKalle Valo switch (keyconf->cipher) { 3435e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 3436e705c121SKalle Valo addr = iwl_mvm_get_mac_addr(mvm, vif, sta); 3437e705c121SKalle Valo /* get phase 1 key from mac80211 */ 3438e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3439e705c121SKalle Valo ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k); 344085aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 34414883145aSEmmanuel Grumbach seq.tkip.iv32, p1k, 0, key_offset, 34424883145aSEmmanuel Grumbach mfp); 3443e705c121SKalle Valo break; 3444e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 3445e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 3446e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 34472a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 34482a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 344985aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 34504883145aSEmmanuel Grumbach 0, NULL, 0, key_offset, mfp); 3451e705c121SKalle Valo break; 3452e705c121SKalle Valo default: 345385aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 34544883145aSEmmanuel Grumbach 0, NULL, 0, key_offset, mfp); 3455e705c121SKalle Valo } 3456e705c121SKalle Valo 3457e705c121SKalle Valo return ret; 3458e705c121SKalle Valo } 3459e705c121SKalle Valo 3460e705c121SKalle Valo int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3461e705c121SKalle Valo struct ieee80211_vif *vif, 3462e705c121SKalle Valo struct ieee80211_sta *sta, 3463e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 34644615fd15SEmmanuel Grumbach u8 key_offset) 3465e705c121SKalle Valo { 3466e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 34675f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 346885aeb58cSDavid Spinadel u8 sta_id = IWL_MVM_INVALID_STA; 3469e705c121SKalle Valo int ret; 3470e705c121SKalle Valo static const u8 __maybe_unused zero_addr[ETH_ALEN] = {0}; 3471e705c121SKalle Valo 3472e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3473e705c121SKalle Valo 347485aeb58cSDavid Spinadel if (vif->type != NL80211_IFTYPE_AP || 347585aeb58cSDavid Spinadel keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) { 3476e705c121SKalle Valo /* Get the station id from the mvm local station table */ 34775f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 34785f7a1847SJohannes Berg if (!mvm_sta) { 34795f7a1847SJohannes Berg IWL_ERR(mvm, "Failed to find station\n"); 3480e705c121SKalle Valo return -EINVAL; 3481e705c121SKalle Valo } 34825f7a1847SJohannes Berg sta_id = mvm_sta->sta_id; 3483e705c121SKalle Valo 3484e705c121SKalle Valo /* 3485e705c121SKalle Valo * It is possible that the 'sta' parameter is NULL, and thus 348685aeb58cSDavid Spinadel * there is a need to retrieve the sta from the local station 348785aeb58cSDavid Spinadel * table. 3488e705c121SKalle Valo */ 3489e705c121SKalle Valo if (!sta) { 349085aeb58cSDavid Spinadel sta = rcu_dereference_protected( 349185aeb58cSDavid Spinadel mvm->fw_id_to_mac_id[sta_id], 3492e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3493e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) { 3494e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 3495e705c121SKalle Valo return -EINVAL; 3496e705c121SKalle Valo } 3497e705c121SKalle Valo } 3498e705c121SKalle Valo 3499e705c121SKalle Valo if (WARN_ON_ONCE(iwl_mvm_sta_from_mac80211(sta)->vif != vif)) 3500e705c121SKalle Valo return -EINVAL; 3501e829b17cSBeni Lev } else { 3502e829b17cSBeni Lev struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3503e829b17cSBeni Lev 3504e829b17cSBeni Lev sta_id = mvmvif->mcast_sta.sta_id; 3505e829b17cSBeni Lev } 3506e829b17cSBeni Lev 3507e829b17cSBeni Lev if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3508e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3509e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) { 3510e829b17cSBeni Lev ret = iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, false); 3511e829b17cSBeni Lev goto end; 351285aeb58cSDavid Spinadel } 3513e705c121SKalle Valo 35144615fd15SEmmanuel Grumbach /* If the key_offset is not pre-assigned, we need to find a 35154615fd15SEmmanuel Grumbach * new offset to use. In normal cases, the offset is not 35164615fd15SEmmanuel Grumbach * pre-assigned, but during HW_RESTART we want to reuse the 35174615fd15SEmmanuel Grumbach * same indices, so we pass them when this function is called. 35184615fd15SEmmanuel Grumbach * 35194615fd15SEmmanuel Grumbach * In D3 entry, we need to hardcoded the indices (because the 35204615fd15SEmmanuel Grumbach * firmware hardcodes the PTK offset to 0). In this case, we 35214615fd15SEmmanuel Grumbach * need to make sure we don't overwrite the hw_key_idx in the 35224615fd15SEmmanuel Grumbach * keyconf structure, because otherwise we cannot configure 35234615fd15SEmmanuel Grumbach * the original ones back when resuming. 3524e705c121SKalle Valo */ 35254615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) { 35264615fd15SEmmanuel Grumbach key_offset = iwl_mvm_set_fw_key_idx(mvm); 35274615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) 3528e705c121SKalle Valo return -ENOSPC; 35294615fd15SEmmanuel Grumbach keyconf->hw_key_idx = key_offset; 3530e705c121SKalle Valo } 3531e705c121SKalle Valo 35324615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, key_offset, mcast); 35339c3deeb5SLuca Coelho if (ret) 3534e705c121SKalle Valo goto end; 3535e705c121SKalle Valo 3536e705c121SKalle Valo /* 3537e705c121SKalle Valo * For WEP, the same key is used for multicast and unicast. Upload it 3538e705c121SKalle Valo * again, using the same key offset, and now pointing the other one 3539e705c121SKalle Valo * to the same key slot (offset). 3540e705c121SKalle Valo * If this fails, remove the original as well. 3541e705c121SKalle Valo */ 354285aeb58cSDavid Spinadel if ((keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 354385aeb58cSDavid Spinadel keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) && 354485aeb58cSDavid Spinadel sta) { 35454615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, 35464615fd15SEmmanuel Grumbach key_offset, !mcast); 3547e705c121SKalle Valo if (ret) { 3548e705c121SKalle Valo __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 35499c3deeb5SLuca Coelho goto end; 3550e705c121SKalle Valo } 3551e705c121SKalle Valo } 3552e705c121SKalle Valo 35539c3deeb5SLuca Coelho __set_bit(key_offset, mvm->fw_key_table); 35549c3deeb5SLuca Coelho 3555e705c121SKalle Valo end: 3556e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "key: cipher=%x len=%d idx=%d sta=%pM ret=%d\n", 3557e705c121SKalle Valo keyconf->cipher, keyconf->keylen, keyconf->keyidx, 3558e705c121SKalle Valo sta ? sta->addr : zero_addr, ret); 3559e705c121SKalle Valo return ret; 3560e705c121SKalle Valo } 3561e705c121SKalle Valo 3562e705c121SKalle Valo int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, 3563e705c121SKalle Valo struct ieee80211_vif *vif, 3564e705c121SKalle Valo struct ieee80211_sta *sta, 3565e705c121SKalle Valo struct ieee80211_key_conf *keyconf) 3566e705c121SKalle Valo { 3567e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 35685f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 35690ae98812SSara Sharon u8 sta_id = IWL_MVM_INVALID_STA; 3570e705c121SKalle Valo int ret, i; 3571e705c121SKalle Valo 3572e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3573e705c121SKalle Valo 35745f7a1847SJohannes Berg /* Get the station from the mvm local station table */ 35755f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 357671793b7dSLuca Coelho if (mvm_sta) 3577cd4d23c1SIlan Peer sta_id = mvm_sta->sta_id; 357885aeb58cSDavid Spinadel else if (!sta && vif->type == NL80211_IFTYPE_AP && mcast) 357985aeb58cSDavid Spinadel sta_id = iwl_mvm_vif_from_mac80211(vif)->mcast_sta.sta_id; 358085aeb58cSDavid Spinadel 3581e705c121SKalle Valo 3582e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "mvm remove dynamic key: idx=%d sta=%d\n", 3583e705c121SKalle Valo keyconf->keyidx, sta_id); 3584e705c121SKalle Valo 3585197288d5SLuca Coelho if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 35868e160ab8SAyala Beker keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3587197288d5SLuca Coelho keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 3588e705c121SKalle Valo return iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, true); 3589e705c121SKalle Valo 3590e705c121SKalle Valo if (!__test_and_clear_bit(keyconf->hw_key_idx, mvm->fw_key_table)) { 3591e705c121SKalle Valo IWL_ERR(mvm, "offset %d not used in fw key table.\n", 3592e705c121SKalle Valo keyconf->hw_key_idx); 3593e705c121SKalle Valo return -ENOENT; 3594e705c121SKalle Valo } 3595e705c121SKalle Valo 3596e705c121SKalle Valo /* track which key was deleted last */ 3597e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3598e705c121SKalle Valo if (mvm->fw_key_deleted[i] < U8_MAX) 3599e705c121SKalle Valo mvm->fw_key_deleted[i]++; 3600e705c121SKalle Valo } 3601e705c121SKalle Valo mvm->fw_key_deleted[keyconf->hw_key_idx] = 0; 3602e705c121SKalle Valo 360385aeb58cSDavid Spinadel if (sta && !mvm_sta) { 3604e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "station non-existent, early return.\n"); 3605e705c121SKalle Valo return 0; 3606e705c121SKalle Valo } 3607e705c121SKalle Valo 3608e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 3609e705c121SKalle Valo if (ret) 3610e705c121SKalle Valo return ret; 3611e705c121SKalle Valo 3612e705c121SKalle Valo /* delete WEP key twice to get rid of (now useless) offset */ 3613e705c121SKalle Valo if (keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 3614e705c121SKalle Valo keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) 3615e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, !mcast); 3616e705c121SKalle Valo 3617e705c121SKalle Valo return ret; 3618e705c121SKalle Valo } 3619e705c121SKalle Valo 3620e705c121SKalle Valo void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, 3621e705c121SKalle Valo struct ieee80211_vif *vif, 3622e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3623e705c121SKalle Valo struct ieee80211_sta *sta, u32 iv32, 3624e705c121SKalle Valo u16 *phase1key) 3625e705c121SKalle Valo { 3626e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3627e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 36284883145aSEmmanuel Grumbach bool mfp = sta ? sta->mfp : false; 3629e705c121SKalle Valo 3630e705c121SKalle Valo rcu_read_lock(); 3631e705c121SKalle Valo 36325f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 36335f7a1847SJohannes Berg if (WARN_ON_ONCE(!mvm_sta)) 363412f17211SEmmanuel Grumbach goto unlock; 363585aeb58cSDavid Spinadel iwl_mvm_send_sta_key(mvm, mvm_sta->sta_id, keyconf, mcast, 36364883145aSEmmanuel Grumbach iv32, phase1key, CMD_ASYNC, keyconf->hw_key_idx, 36374883145aSEmmanuel Grumbach mfp); 363812f17211SEmmanuel Grumbach 363912f17211SEmmanuel Grumbach unlock: 3640e705c121SKalle Valo rcu_read_unlock(); 3641e705c121SKalle Valo } 3642e705c121SKalle Valo 3643e705c121SKalle Valo void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, 3644e705c121SKalle Valo struct ieee80211_sta *sta) 3645e705c121SKalle Valo { 3646e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3647e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3648e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3649e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3650e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_PS), 3651e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3652e705c121SKalle Valo }; 3653e705c121SKalle Valo int ret; 3654e705c121SKalle Valo 3655854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3656854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3657e705c121SKalle Valo if (ret) 3658e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3659e705c121SKalle Valo } 3660e705c121SKalle Valo 3661e705c121SKalle Valo void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, 3662e705c121SKalle Valo struct ieee80211_sta *sta, 3663e705c121SKalle Valo enum ieee80211_frame_release_type reason, 3664e705c121SKalle Valo u16 cnt, u16 tids, bool more_data, 36659a3fcf91SSara Sharon bool single_sta_queue) 3666e705c121SKalle Valo { 3667e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3668e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3669e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3670e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3671e705c121SKalle Valo .modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT, 3672e705c121SKalle Valo .sleep_tx_count = cpu_to_le16(cnt), 3673e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3674e705c121SKalle Valo }; 3675e705c121SKalle Valo int tid, ret; 3676e705c121SKalle Valo unsigned long _tids = tids; 3677e705c121SKalle Valo 3678e705c121SKalle Valo /* convert TIDs to ACs - we don't support TSPEC so that's OK 3679e705c121SKalle Valo * Note that this field is reserved and unused by firmware not 3680e705c121SKalle Valo * supporting GO uAPSD, so it's safe to always do this. 3681e705c121SKalle Valo */ 3682e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) 3683e705c121SKalle Valo cmd.awake_acs |= BIT(tid_to_ucode_ac[tid]); 3684e705c121SKalle Valo 36859a3fcf91SSara Sharon /* If we're releasing frames from aggregation or dqa queues then check 36869a3fcf91SSara Sharon * if all the queues that we're releasing frames from, combined, have: 3687e705c121SKalle Valo * - more frames than the service period, in which case more_data 3688e705c121SKalle Valo * needs to be set 3689e705c121SKalle Valo * - fewer than 'cnt' frames, in which case we need to adjust the 3690e705c121SKalle Valo * firmware command (but do that unconditionally) 3691e705c121SKalle Valo */ 36929a3fcf91SSara Sharon if (single_sta_queue) { 3693e705c121SKalle Valo int remaining = cnt; 369436be0eb6SEmmanuel Grumbach int sleep_tx_count; 3695e705c121SKalle Valo 3696e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3697e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) { 3698e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 3699e705c121SKalle Valo u16 n_queued; 3700e705c121SKalle Valo 3701e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 3702e705c121SKalle Valo 3703dd32162dSLiad Kaufman n_queued = iwl_mvm_tid_queued(mvm, tid_data); 3704e705c121SKalle Valo if (n_queued > remaining) { 3705e705c121SKalle Valo more_data = true; 3706e705c121SKalle Valo remaining = 0; 3707e705c121SKalle Valo break; 3708e705c121SKalle Valo } 3709e705c121SKalle Valo remaining -= n_queued; 3710e705c121SKalle Valo } 371136be0eb6SEmmanuel Grumbach sleep_tx_count = cnt - remaining; 371236be0eb6SEmmanuel Grumbach if (reason == IEEE80211_FRAME_RELEASE_UAPSD) 371336be0eb6SEmmanuel Grumbach mvmsta->sleep_tx_count = sleep_tx_count; 3714e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3715e705c121SKalle Valo 371636be0eb6SEmmanuel Grumbach cmd.sleep_tx_count = cpu_to_le16(sleep_tx_count); 3717e705c121SKalle Valo if (WARN_ON(cnt - remaining == 0)) { 3718e705c121SKalle Valo ieee80211_sta_eosp(sta); 3719e705c121SKalle Valo return; 3720e705c121SKalle Valo } 3721e705c121SKalle Valo } 3722e705c121SKalle Valo 3723e705c121SKalle Valo /* Note: this is ignored by firmware not supporting GO uAPSD */ 3724e705c121SKalle Valo if (more_data) 3725ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_MOREDATA; 3726e705c121SKalle Valo 3727e705c121SKalle Valo if (reason == IEEE80211_FRAME_RELEASE_PSPOLL) { 3728e705c121SKalle Valo mvmsta->next_status_eosp = true; 3729ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_PS_POLL; 3730e705c121SKalle Valo } else { 3731ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_UAPSD; 3732e705c121SKalle Valo } 3733e705c121SKalle Valo 3734156f92f2SEmmanuel Grumbach /* block the Tx queues until the FW updated the sleep Tx count */ 3735156f92f2SEmmanuel Grumbach iwl_trans_block_txq_ptrs(mvm->trans, true); 3736156f92f2SEmmanuel Grumbach 3737156f92f2SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 3738156f92f2SEmmanuel Grumbach CMD_ASYNC | CMD_WANT_ASYNC_CALLBACK, 3739854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3740e705c121SKalle Valo if (ret) 3741e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3742e705c121SKalle Valo } 3743e705c121SKalle Valo 3744e705c121SKalle Valo void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm, 3745e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 3746e705c121SKalle Valo { 3747e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 3748e705c121SKalle Valo struct iwl_mvm_eosp_notification *notif = (void *)pkt->data; 3749e705c121SKalle Valo struct ieee80211_sta *sta; 3750e705c121SKalle Valo u32 sta_id = le32_to_cpu(notif->sta_id); 3751e705c121SKalle Valo 3752be9ae34eSNathan Errera if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 3753e705c121SKalle Valo return; 3754e705c121SKalle Valo 3755e705c121SKalle Valo rcu_read_lock(); 3756e705c121SKalle Valo sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 3757e705c121SKalle Valo if (!IS_ERR_OR_NULL(sta)) 3758e705c121SKalle Valo ieee80211_sta_eosp(sta); 3759e705c121SKalle Valo rcu_read_unlock(); 3760e705c121SKalle Valo } 3761e705c121SKalle Valo 3762e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm, 3763e705c121SKalle Valo struct iwl_mvm_sta *mvmsta, bool disable) 3764e705c121SKalle Valo { 3765e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3766e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3767e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3768e705c121SKalle Valo .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 3769e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 3770e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3771e705c121SKalle Valo }; 3772e705c121SKalle Valo int ret; 3773e705c121SKalle Valo 3774854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3775854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3776e705c121SKalle Valo if (ret) 3777e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3778e705c121SKalle Valo } 3779e705c121SKalle Valo 3780e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm, 3781e705c121SKalle Valo struct ieee80211_sta *sta, 3782e705c121SKalle Valo bool disable) 3783e705c121SKalle Valo { 3784e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3785e705c121SKalle Valo 3786e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 3787e705c121SKalle Valo 3788e705c121SKalle Valo if (mvm_sta->disable_tx == disable) { 3789e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 3790e705c121SKalle Valo return; 3791e705c121SKalle Valo } 3792e705c121SKalle Valo 3793e705c121SKalle Valo mvm_sta->disable_tx = disable; 3794e705c121SKalle Valo 3795c8f54701SJohannes Berg /* Tell mac80211 to start/stop queuing tx for this station */ 3796e705c121SKalle Valo ieee80211_sta_block_awake(mvm->hw, sta, disable); 3797e705c121SKalle Valo 3798e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvm_sta, disable); 3799e705c121SKalle Valo 3800e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 3801e705c121SKalle Valo } 3802e705c121SKalle Valo 3803ced19f26SSara Sharon static void iwl_mvm_int_sta_modify_disable_tx(struct iwl_mvm *mvm, 3804ced19f26SSara Sharon struct iwl_mvm_vif *mvmvif, 3805ced19f26SSara Sharon struct iwl_mvm_int_sta *sta, 3806ced19f26SSara Sharon bool disable) 3807ced19f26SSara Sharon { 3808ced19f26SSara Sharon u32 id = FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color); 3809ced19f26SSara Sharon struct iwl_mvm_add_sta_cmd cmd = { 3810ced19f26SSara Sharon .add_modify = STA_MODE_MODIFY, 3811ced19f26SSara Sharon .sta_id = sta->sta_id, 3812ced19f26SSara Sharon .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 3813ced19f26SSara Sharon .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 3814ced19f26SSara Sharon .mac_id_n_color = cpu_to_le32(id), 3815ced19f26SSara Sharon }; 3816ced19f26SSara Sharon int ret; 3817ced19f26SSara Sharon 3818ced19f26SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 0, 3819ced19f26SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3820ced19f26SSara Sharon if (ret) 3821ced19f26SSara Sharon IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3822ced19f26SSara Sharon } 3823ced19f26SSara Sharon 3824e705c121SKalle Valo void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm, 3825e705c121SKalle Valo struct iwl_mvm_vif *mvmvif, 3826e705c121SKalle Valo bool disable) 3827e705c121SKalle Valo { 3828e705c121SKalle Valo struct ieee80211_sta *sta; 3829e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3830e705c121SKalle Valo int i; 3831e705c121SKalle Valo 3832e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3833e705c121SKalle Valo 3834e705c121SKalle Valo /* Block/unblock all the stations of the given mvmvif */ 3835be9ae34eSNathan Errera for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 3836e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 3837e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3838e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) 3839e705c121SKalle Valo continue; 3840e705c121SKalle Valo 3841e705c121SKalle Valo mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3842e705c121SKalle Valo if (mvm_sta->mac_id_n_color != 3843e705c121SKalle Valo FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)) 3844e705c121SKalle Valo continue; 3845e705c121SKalle Valo 3846e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx_ap(mvm, sta, disable); 3847e705c121SKalle Valo } 3848ced19f26SSara Sharon 3849ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3850ced19f26SSara Sharon return; 3851ced19f26SSara Sharon 3852ced19f26SSara Sharon /* Need to block/unblock also multicast station */ 3853ced19f26SSara Sharon if (mvmvif->mcast_sta.sta_id != IWL_MVM_INVALID_STA) 3854ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 3855ced19f26SSara Sharon &mvmvif->mcast_sta, disable); 3856ced19f26SSara Sharon 3857ced19f26SSara Sharon /* 3858ced19f26SSara Sharon * Only unblock the broadcast station (FW blocks it for immediate 3859ced19f26SSara Sharon * quiet, not the driver) 3860ced19f26SSara Sharon */ 3861ced19f26SSara Sharon if (!disable && mvmvif->bcast_sta.sta_id != IWL_MVM_INVALID_STA) 3862ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 3863ced19f26SSara Sharon &mvmvif->bcast_sta, disable); 3864e705c121SKalle Valo } 3865e705c121SKalle Valo 3866e705c121SKalle Valo void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 3867e705c121SKalle Valo { 3868e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3869e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 3870e705c121SKalle Valo 3871e705c121SKalle Valo rcu_read_lock(); 3872e705c121SKalle Valo 3873e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->ap_sta_id); 3874e705c121SKalle Valo 3875e705c121SKalle Valo if (!WARN_ON(!mvmsta)) 3876e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true); 3877e705c121SKalle Valo 3878e705c121SKalle Valo rcu_read_unlock(); 3879e705c121SKalle Valo } 3880dd32162dSLiad Kaufman 3881dd32162dSLiad Kaufman u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data) 3882dd32162dSLiad Kaufman { 3883dd32162dSLiad Kaufman u16 sn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3884dd32162dSLiad Kaufman 3885dd32162dSLiad Kaufman /* 38862f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 3887dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 3888dd32162dSLiad Kaufman */ 3889286ca8ebSLuca Coelho if (mvm->trans->trans_cfg->gen2) 3890dd32162dSLiad Kaufman sn &= 0xff; 3891dd32162dSLiad Kaufman 3892dd32162dSLiad Kaufman return ieee80211_sn_sub(sn, tid_data->next_reclaimed); 3893dd32162dSLiad Kaufman } 3894be82ecd3SAvraham Stern 3895be82ecd3SAvraham Stern int iwl_mvm_add_pasn_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3896be82ecd3SAvraham Stern struct iwl_mvm_int_sta *sta, u8 *addr, u32 cipher, 3897be82ecd3SAvraham Stern u8 *key, u32 key_len) 3898be82ecd3SAvraham Stern { 3899be82ecd3SAvraham Stern int ret; 3900be82ecd3SAvraham Stern u16 queue; 3901be82ecd3SAvraham Stern struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3902be82ecd3SAvraham Stern struct ieee80211_key_conf *keyconf; 3903be82ecd3SAvraham Stern 3904be82ecd3SAvraham Stern ret = iwl_mvm_allocate_int_sta(mvm, sta, 0, 3905be82ecd3SAvraham Stern NL80211_IFTYPE_UNSPECIFIED, 3906be82ecd3SAvraham Stern IWL_STA_LINK); 3907be82ecd3SAvraham Stern if (ret) 3908be82ecd3SAvraham Stern return ret; 3909be82ecd3SAvraham Stern 3910be82ecd3SAvraham Stern ret = iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id, mvmvif->color, 3911be82ecd3SAvraham Stern addr, sta, &queue, 3912be82ecd3SAvraham Stern IWL_MVM_TX_FIFO_BE); 3913be82ecd3SAvraham Stern if (ret) 3914be82ecd3SAvraham Stern goto out; 3915be82ecd3SAvraham Stern 3916be82ecd3SAvraham Stern keyconf = kzalloc(sizeof(*keyconf) + key_len, GFP_KERNEL); 3917be82ecd3SAvraham Stern if (!keyconf) { 3918be82ecd3SAvraham Stern ret = -ENOBUFS; 3919be82ecd3SAvraham Stern goto out; 3920be82ecd3SAvraham Stern } 3921be82ecd3SAvraham Stern 3922be82ecd3SAvraham Stern keyconf->cipher = cipher; 3923be82ecd3SAvraham Stern memcpy(keyconf->key, key, key_len); 3924be82ecd3SAvraham Stern keyconf->keylen = key_len; 3925be82ecd3SAvraham Stern 3926be82ecd3SAvraham Stern ret = iwl_mvm_send_sta_key(mvm, sta->sta_id, keyconf, false, 3927be82ecd3SAvraham Stern 0, NULL, 0, 0, true); 3928be82ecd3SAvraham Stern kfree(keyconf); 3929be82ecd3SAvraham Stern return 0; 3930be82ecd3SAvraham Stern out: 3931be82ecd3SAvraham Stern iwl_mvm_dealloc_int_sta(mvm, sta); 3932be82ecd3SAvraham Stern return ret; 3933be82ecd3SAvraham Stern } 3934