18e99ea8dSJohannes Berg // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 28e99ea8dSJohannes Berg /* 33538c809SLuca Coelho * Copyright (C) 2012-2015, 2018-2022 Intel Corporation 48e99ea8dSJohannes Berg * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 58e99ea8dSJohannes Berg * Copyright (C) 2016-2017 Intel Deutschland GmbH 68e99ea8dSJohannes Berg */ 7e705c121SKalle Valo #include <net/mac80211.h> 8e705c121SKalle Valo 9e705c121SKalle Valo #include "mvm.h" 10e705c121SKalle Valo #include "sta.h" 11e705c121SKalle Valo #include "rs.h" 12e705c121SKalle Valo 13854c5705SSara Sharon /* 14854c5705SSara Sharon * New version of ADD_STA_sta command added new fields at the end of the 15854c5705SSara Sharon * structure, so sending the size of the relevant API's structure is enough to 16854c5705SSara Sharon * support both API versions. 17854c5705SSara Sharon */ 18854c5705SSara Sharon static inline int iwl_mvm_add_sta_cmd_size(struct iwl_mvm *mvm) 19854c5705SSara Sharon { 20ced19f26SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) || 21ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 22ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd); 23ced19f26SSara Sharon else 24ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd_v7); 25854c5705SSara Sharon } 26854c5705SSara Sharon 2787f7e243SMiri Korenblit int iwl_mvm_find_free_sta_id(struct iwl_mvm *mvm, enum nl80211_iftype iftype) 28e705c121SKalle Valo { 29e705c121SKalle Valo int sta_id; 30e705c121SKalle Valo u32 reserved_ids = 0; 31e705c121SKalle Valo 32be9ae34eSNathan Errera BUILD_BUG_ON(IWL_MVM_STATION_COUNT_MAX > 32); 33e705c121SKalle Valo WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)); 34e705c121SKalle Valo 35e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 36e705c121SKalle Valo 37e705c121SKalle Valo /* d0i3/d3 assumes the AP's sta_id (of sta vif) is 0. reserve it. */ 38e705c121SKalle Valo if (iftype != NL80211_IFTYPE_STATION) 39e705c121SKalle Valo reserved_ids = BIT(0); 40e705c121SKalle Valo 41e705c121SKalle Valo /* Don't take rcu_read_lock() since we are protected by mvm->mutex */ 42be9ae34eSNathan Errera for (sta_id = 0; sta_id < mvm->fw->ucode_capa.num_stations; sta_id++) { 43e705c121SKalle Valo if (BIT(sta_id) & reserved_ids) 44e705c121SKalle Valo continue; 45e705c121SKalle Valo 46e705c121SKalle Valo if (!rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 47e705c121SKalle Valo lockdep_is_held(&mvm->mutex))) 48e705c121SKalle Valo return sta_id; 49e705c121SKalle Valo } 500ae98812SSara Sharon return IWL_MVM_INVALID_STA; 51e705c121SKalle Valo } 52e705c121SKalle Valo 5377b6a2e5SMiri Korenblit /* Calculate the ampdu density and max size */ 5457974a55SGregory Greenman u32 iwl_mvm_get_sta_ampdu_dens(struct ieee80211_link_sta *link_sta, 5557974a55SGregory Greenman struct ieee80211_bss_conf *link_conf, 5657974a55SGregory Greenman u32 *_agg_size) 5777b6a2e5SMiri Korenblit { 5877b6a2e5SMiri Korenblit u32 agg_size = 0, mpdu_dens = 0; 5977b6a2e5SMiri Korenblit 6057974a55SGregory Greenman if (WARN_ON(!link_sta)) 6157974a55SGregory Greenman return 0; 6277b6a2e5SMiri Korenblit 6357974a55SGregory Greenman if (link_sta->ht_cap.ht_supported) 6457974a55SGregory Greenman mpdu_dens = link_sta->ht_cap.ampdu_density; 6557974a55SGregory Greenman 6657974a55SGregory Greenman if (link_conf->chandef.chan->band == 6757974a55SGregory Greenman NL80211_BAND_6GHZ) { 6857974a55SGregory Greenman mpdu_dens = le16_get_bits(link_sta->he_6ghz_capa.capa, 6977b6a2e5SMiri Korenblit IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START); 7057974a55SGregory Greenman agg_size = le16_get_bits(link_sta->he_6ghz_capa.capa, 7177b6a2e5SMiri Korenblit IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP); 7257974a55SGregory Greenman } else if (link_sta->vht_cap.vht_supported) { 7357974a55SGregory Greenman agg_size = link_sta->vht_cap.cap & 7477b6a2e5SMiri Korenblit IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; 7577b6a2e5SMiri Korenblit agg_size >>= 7677b6a2e5SMiri Korenblit IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; 7757974a55SGregory Greenman } else if (link_sta->ht_cap.ht_supported) { 7857974a55SGregory Greenman agg_size = link_sta->ht_cap.ampdu_factor; 7977b6a2e5SMiri Korenblit } 8077b6a2e5SMiri Korenblit 8177b6a2e5SMiri Korenblit /* D6.0 10.12.2 A-MPDU length limit rules 8277b6a2e5SMiri Korenblit * A STA indicates the maximum length of the A-MPDU preEOF padding 8377b6a2e5SMiri Korenblit * that it can receive in an HE PPDU in the Maximum A-MPDU Length 8477b6a2e5SMiri Korenblit * Exponent field in its HT Capabilities, VHT Capabilities, 8577b6a2e5SMiri Korenblit * and HE 6 GHz Band Capabilities elements (if present) and the 8677b6a2e5SMiri Korenblit * Maximum AMPDU Length Exponent Extension field in its HE 8777b6a2e5SMiri Korenblit * Capabilities element 8877b6a2e5SMiri Korenblit */ 8957974a55SGregory Greenman if (link_sta->he_cap.has_he) 9077b6a2e5SMiri Korenblit agg_size += 9157974a55SGregory Greenman u8_get_bits(link_sta->he_cap.he_cap_elem.mac_cap_info[3], 9277b6a2e5SMiri Korenblit IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK); 9377b6a2e5SMiri Korenblit 9477b6a2e5SMiri Korenblit /* Limit to max A-MPDU supported by FW */ 9577b6a2e5SMiri Korenblit if (agg_size > (STA_FLG_MAX_AGG_SIZE_4M >> STA_FLG_MAX_AGG_SIZE_SHIFT)) 9677b6a2e5SMiri Korenblit agg_size = (STA_FLG_MAX_AGG_SIZE_4M >> 9777b6a2e5SMiri Korenblit STA_FLG_MAX_AGG_SIZE_SHIFT); 9877b6a2e5SMiri Korenblit 9977b6a2e5SMiri Korenblit *_agg_size = agg_size; 10077b6a2e5SMiri Korenblit return mpdu_dens; 10177b6a2e5SMiri Korenblit } 10277b6a2e5SMiri Korenblit 10387f7e243SMiri Korenblit u8 iwl_mvm_get_sta_uapsd_acs(struct ieee80211_sta *sta) 10477b6a2e5SMiri Korenblit { 10577b6a2e5SMiri Korenblit u8 uapsd_acs = 0; 10677b6a2e5SMiri Korenblit 10777b6a2e5SMiri Korenblit if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK) 10877b6a2e5SMiri Korenblit uapsd_acs |= BIT(AC_BK); 10977b6a2e5SMiri Korenblit if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE) 11077b6a2e5SMiri Korenblit uapsd_acs |= BIT(AC_BE); 11177b6a2e5SMiri Korenblit if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI) 11277b6a2e5SMiri Korenblit uapsd_acs |= BIT(AC_VI); 11377b6a2e5SMiri Korenblit if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) 11477b6a2e5SMiri Korenblit uapsd_acs |= BIT(AC_VO); 11577b6a2e5SMiri Korenblit 11677b6a2e5SMiri Korenblit return uapsd_acs | uapsd_acs << 4; 11777b6a2e5SMiri Korenblit } 11877b6a2e5SMiri Korenblit 119e705c121SKalle Valo /* send station add/update command to firmware */ 120e705c121SKalle Valo int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 12124afba76SLiad Kaufman bool update, unsigned int flags) 122e705c121SKalle Valo { 123e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 124e705c121SKalle Valo struct iwl_mvm_add_sta_cmd add_sta_cmd = { 125c8ee33e1SGregory Greenman .sta_id = mvm_sta->deflink.sta_id, 126e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color), 127e705c121SKalle Valo .add_modify = update ? 1 : 0, 128e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_FAT_EN_MSK | 1298addabf8SNaftali Goldstein STA_FLG_MIMO_EN_MSK | 1308addabf8SNaftali Goldstein STA_FLG_RTS_MIMO_PROT), 131cf0cda19SLiad Kaufman .tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg), 132e705c121SKalle Valo }; 133e705c121SKalle Valo int ret; 134e705c121SKalle Valo u32 status; 135e705c121SKalle Valo u32 agg_size = 0, mpdu_dens = 0; 136e705c121SKalle Valo 137ced19f26SSara Sharon if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 138ced19f26SSara Sharon add_sta_cmd.station_type = mvm_sta->sta_type; 139ced19f26SSara Sharon 14024afba76SLiad Kaufman if (!update || (flags & STA_MODIFY_QUEUES)) { 141e705c121SKalle Valo memcpy(&add_sta_cmd.addr, sta->addr, ETH_ALEN); 14224afba76SLiad Kaufman 143bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) { 144bb49701bSSara Sharon add_sta_cmd.tfd_queue_msk = 145bb49701bSSara Sharon cpu_to_le32(mvm_sta->tfd_queue_msk); 146bb49701bSSara Sharon 14724afba76SLiad Kaufman if (flags & STA_MODIFY_QUEUES) 14824afba76SLiad Kaufman add_sta_cmd.modify_mask |= STA_MODIFY_QUEUES; 149bb49701bSSara Sharon } else { 150bb49701bSSara Sharon WARN_ON(flags & STA_MODIFY_QUEUES); 151bb49701bSSara Sharon } 152e705c121SKalle Valo } 153e705c121SKalle Valo 154046d2e7cSSriram R switch (sta->deflink.bandwidth) { 1555dca295dSIlan Peer case IEEE80211_STA_RX_BW_320: 156e705c121SKalle Valo case IEEE80211_STA_RX_BW_160: 157e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_160MHZ); 1585a2abdcaSGustavo A. R. Silva fallthrough; 159e705c121SKalle Valo case IEEE80211_STA_RX_BW_80: 160e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_80MHZ); 1615a2abdcaSGustavo A. R. Silva fallthrough; 162e705c121SKalle Valo case IEEE80211_STA_RX_BW_40: 163e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_40MHZ); 1645a2abdcaSGustavo A. R. Silva fallthrough; 165e705c121SKalle Valo case IEEE80211_STA_RX_BW_20: 166046d2e7cSSriram R if (sta->deflink.ht_cap.ht_supported) 167e705c121SKalle Valo add_sta_cmd.station_flags |= 168e705c121SKalle Valo cpu_to_le32(STA_FLG_FAT_EN_20MHZ); 169e705c121SKalle Valo break; 170e705c121SKalle Valo } 171e705c121SKalle Valo 172046d2e7cSSriram R switch (sta->deflink.rx_nss) { 173e705c121SKalle Valo case 1: 174e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 175e705c121SKalle Valo break; 176e705c121SKalle Valo case 2: 177e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO2); 178e705c121SKalle Valo break; 179e705c121SKalle Valo case 3 ... 8: 180e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO3); 181e705c121SKalle Valo break; 182e705c121SKalle Valo } 183e705c121SKalle Valo 184261ce887SBenjamin Berg switch (sta->deflink.smps_mode) { 185e705c121SKalle Valo case IEEE80211_SMPS_AUTOMATIC: 186e705c121SKalle Valo case IEEE80211_SMPS_NUM_MODES: 187e705c121SKalle Valo WARN_ON(1); 188e705c121SKalle Valo break; 189e705c121SKalle Valo case IEEE80211_SMPS_STATIC: 190e705c121SKalle Valo /* override NSS */ 191e705c121SKalle Valo add_sta_cmd.station_flags &= ~cpu_to_le32(STA_FLG_MIMO_EN_MSK); 192e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 193e705c121SKalle Valo break; 194e705c121SKalle Valo case IEEE80211_SMPS_DYNAMIC: 195e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_RTS_MIMO_PROT); 196e705c121SKalle Valo break; 197e705c121SKalle Valo case IEEE80211_SMPS_OFF: 198e705c121SKalle Valo /* nothing */ 199e705c121SKalle Valo break; 200e705c121SKalle Valo } 201e705c121SKalle Valo 20277b6a2e5SMiri Korenblit if (sta->deflink.ht_cap.ht_supported || 20377b6a2e5SMiri Korenblit mvm_sta->vif->bss_conf.chandef.chan->band == NL80211_BAND_6GHZ) 204e705c121SKalle Valo add_sta_cmd.station_flags_msk |= 205e705c121SKalle Valo cpu_to_le32(STA_FLG_MAX_AGG_SIZE_MSK | 206e705c121SKalle Valo STA_FLG_AGG_MPDU_DENS_MSK); 207e705c121SKalle Valo 20857974a55SGregory Greenman mpdu_dens = iwl_mvm_get_sta_ampdu_dens(&sta->deflink, 20957974a55SGregory Greenman &mvm_sta->vif->bss_conf, 21057974a55SGregory Greenman &agg_size); 211e705c121SKalle Valo add_sta_cmd.station_flags |= 212e705c121SKalle Valo cpu_to_le32(agg_size << STA_FLG_MAX_AGG_SIZE_SHIFT); 213e705c121SKalle Valo add_sta_cmd.station_flags |= 214e705c121SKalle Valo cpu_to_le32(mpdu_dens << STA_FLG_AGG_MPDU_DENS_SHIFT); 21577b6a2e5SMiri Korenblit 216d94c5a82SGregory Greenman if (mvm_sta->sta_state >= IEEE80211_STA_ASSOC) 21719c52f46SEmmanuel Grumbach add_sta_cmd.assoc_id = cpu_to_le16(sta->aid); 218e705c121SKalle Valo 21965e25482SJohannes Berg if (sta->wme) { 22065e25482SJohannes Berg add_sta_cmd.modify_mask |= STA_MODIFY_UAPSD_ACS; 22177b6a2e5SMiri Korenblit add_sta_cmd.uapsd_acs = iwl_mvm_get_sta_uapsd_acs(sta); 222e71ca5eaSEmmanuel Grumbach add_sta_cmd.sp_length = sta->max_sp ? sta->max_sp * 2 : 128; 22365e25482SJohannes Berg } 22465e25482SJohannes Berg 225e705c121SKalle Valo status = ADD_STA_SUCCESS; 226854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 227854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 228e705c121SKalle Valo &add_sta_cmd, &status); 229e705c121SKalle Valo if (ret) 230e705c121SKalle Valo return ret; 231e705c121SKalle Valo 232837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 233e705c121SKalle Valo case ADD_STA_SUCCESS: 234e705c121SKalle Valo IWL_DEBUG_ASSOC(mvm, "ADD_STA PASSED\n"); 235e705c121SKalle Valo break; 236e705c121SKalle Valo default: 237e705c121SKalle Valo ret = -EIO; 238e705c121SKalle Valo IWL_ERR(mvm, "ADD_STA failed\n"); 239e705c121SKalle Valo break; 240e705c121SKalle Valo } 241e705c121SKalle Valo 242e705c121SKalle Valo return ret; 243e705c121SKalle Valo } 244e705c121SKalle Valo 2458cef5344SKees Cook static void iwl_mvm_rx_agg_session_expired(struct timer_list *t) 24610b2b201SSara Sharon { 2478cef5344SKees Cook struct iwl_mvm_baid_data *data = 2488cef5344SKees Cook from_timer(data, t, session_timer); 2498cef5344SKees Cook struct iwl_mvm_baid_data __rcu **rcu_ptr = data->rcu_ptr; 25010b2b201SSara Sharon struct iwl_mvm_baid_data *ba_data; 25110b2b201SSara Sharon struct ieee80211_sta *sta; 25210b2b201SSara Sharon struct iwl_mvm_sta *mvm_sta; 25310b2b201SSara Sharon unsigned long timeout; 25410b2b201SSara Sharon 25510b2b201SSara Sharon rcu_read_lock(); 25610b2b201SSara Sharon 25710b2b201SSara Sharon ba_data = rcu_dereference(*rcu_ptr); 25810b2b201SSara Sharon 25910b2b201SSara Sharon if (WARN_ON(!ba_data)) 26010b2b201SSara Sharon goto unlock; 26110b2b201SSara Sharon 26210b2b201SSara Sharon if (!ba_data->timeout) 26310b2b201SSara Sharon goto unlock; 26410b2b201SSara Sharon 26510b2b201SSara Sharon timeout = ba_data->last_rx + TU_TO_JIFFIES(ba_data->timeout * 2); 26610b2b201SSara Sharon if (time_is_after_jiffies(timeout)) { 26710b2b201SSara Sharon mod_timer(&ba_data->session_timer, timeout); 26810b2b201SSara Sharon goto unlock; 26910b2b201SSara Sharon } 27010b2b201SSara Sharon 27110b2b201SSara Sharon /* Timer expired */ 27210b2b201SSara Sharon sta = rcu_dereference(ba_data->mvm->fw_id_to_mac_id[ba_data->sta_id]); 27361dd8a8aSEmmanuel Grumbach 27461dd8a8aSEmmanuel Grumbach /* 27561dd8a8aSEmmanuel Grumbach * sta should be valid unless the following happens: 27661dd8a8aSEmmanuel Grumbach * The firmware asserts which triggers a reconfig flow, but 27761dd8a8aSEmmanuel Grumbach * the reconfig fails before we set the pointer to sta into 27861dd8a8aSEmmanuel Grumbach * the fw_id_to_mac_id pointer table. Mac80211 can't stop 27961dd8a8aSEmmanuel Grumbach * A-MDPU and hence the timer continues to run. Then, the 28061dd8a8aSEmmanuel Grumbach * timer expires and sta is NULL. 28161dd8a8aSEmmanuel Grumbach */ 28261dd8a8aSEmmanuel Grumbach if (!sta) 28361dd8a8aSEmmanuel Grumbach goto unlock; 28461dd8a8aSEmmanuel Grumbach 28510b2b201SSara Sharon mvm_sta = iwl_mvm_sta_from_mac80211(sta); 28620fc690fSNaftali Goldstein ieee80211_rx_ba_timer_expired(mvm_sta->vif, 28710b2b201SSara Sharon sta->addr, ba_data->tid); 28810b2b201SSara Sharon unlock: 28910b2b201SSara Sharon rcu_read_unlock(); 29010b2b201SSara Sharon } 29110b2b201SSara Sharon 2929794c64fSLiad Kaufman /* Disable aggregations for a bitmap of TIDs for a given station */ 2939794c64fSLiad Kaufman static int iwl_mvm_invalidate_sta_queue(struct iwl_mvm *mvm, int queue, 2949794c64fSLiad Kaufman unsigned long disable_agg_tids, 2959794c64fSLiad Kaufman bool remove_queue) 2969794c64fSLiad Kaufman { 2979794c64fSLiad Kaufman struct iwl_mvm_add_sta_cmd cmd = {}; 2989794c64fSLiad Kaufman struct ieee80211_sta *sta; 2999794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 3009794c64fSLiad Kaufman u32 status; 3019794c64fSLiad Kaufman u8 sta_id; 3029794c64fSLiad Kaufman 303bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 304bb49701bSSara Sharon return -EINVAL; 305bb49701bSSara Sharon 3069794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 3079794c64fSLiad Kaufman 3089794c64fSLiad Kaufman rcu_read_lock(); 3099794c64fSLiad Kaufman 3109794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 3119794c64fSLiad Kaufman 3129794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 3139794c64fSLiad Kaufman rcu_read_unlock(); 3149794c64fSLiad Kaufman return -EINVAL; 3159794c64fSLiad Kaufman } 3169794c64fSLiad Kaufman 3179794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 3189794c64fSLiad Kaufman 3199794c64fSLiad Kaufman mvmsta->tid_disable_agg |= disable_agg_tids; 3209794c64fSLiad Kaufman 3219794c64fSLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 322c8ee33e1SGregory Greenman cmd.sta_id = mvmsta->deflink.sta_id; 3239794c64fSLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 3249794c64fSLiad Kaufman cmd.modify_mask = STA_MODIFY_QUEUES; 3259794c64fSLiad Kaufman if (disable_agg_tids) 3269794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 3279794c64fSLiad Kaufman if (remove_queue) 3289794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_QUEUE_REMOVAL; 3299794c64fSLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 3309794c64fSLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 3319794c64fSLiad Kaufman 3329794c64fSLiad Kaufman rcu_read_unlock(); 3339794c64fSLiad Kaufman 3349794c64fSLiad Kaufman /* Notify FW of queue removal from the STA queues */ 3359794c64fSLiad Kaufman status = ADD_STA_SUCCESS; 336b2c1bf59SSara Sharon return iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 3379794c64fSLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), 3389794c64fSLiad Kaufman &cmd, &status); 3399794c64fSLiad Kaufman } 3409794c64fSLiad Kaufman 341cfbc6c4cSSara Sharon static int iwl_mvm_disable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 342c5a976cfSJohannes Berg int sta_id, u16 *queueptr, u8 tid) 34399448a8cSJohannes Berg { 344c6ce1c74SJohannes Berg int queue = *queueptr; 34599448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 34699448a8cSJohannes Berg .scd_queue = queue, 34799448a8cSJohannes Berg .action = SCD_CFG_DISABLE_QUEUE, 34899448a8cSJohannes Berg }; 34999448a8cSJohannes Berg int ret; 35099448a8cSJohannes Berg 351227f2597SJohannes Berg lockdep_assert_held(&mvm->mutex); 352227f2597SJohannes Berg 35399448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) { 354227f2597SJohannes Berg if (mvm->sta_remove_requires_queue_remove) { 355227f2597SJohannes Berg u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, 356227f2597SJohannes Berg SCD_QUEUE_CONFIG_CMD); 357227f2597SJohannes Berg struct iwl_scd_queue_cfg_cmd remove_cmd = { 358227f2597SJohannes Berg .operation = cpu_to_le32(IWL_SCD_QUEUE_REMOVE), 359c5a976cfSJohannes Berg .u.remove.tid = cpu_to_le32(tid), 360c5a976cfSJohannes Berg .u.remove.sta_mask = cpu_to_le32(BIT(sta_id)), 361227f2597SJohannes Berg }; 362227f2597SJohannes Berg 363227f2597SJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, 364227f2597SJohannes Berg sizeof(remove_cmd), 365227f2597SJohannes Berg &remove_cmd); 366227f2597SJohannes Berg } else { 367227f2597SJohannes Berg ret = 0; 368227f2597SJohannes Berg } 369227f2597SJohannes Berg 37099448a8cSJohannes Berg iwl_trans_txq_free(mvm->trans, queue); 371c6ce1c74SJohannes Berg *queueptr = IWL_MVM_INVALID_QUEUE; 37299448a8cSJohannes Berg 373227f2597SJohannes Berg return ret; 37499448a8cSJohannes Berg } 37599448a8cSJohannes Berg 376f3f240f9SJohannes Berg if (WARN_ON(mvm->queue_info[queue].tid_bitmap == 0)) 37799448a8cSJohannes Berg return 0; 37899448a8cSJohannes Berg 37999448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 38099448a8cSJohannes Berg 3811c14089eSJohannes Berg cmd.action = mvm->queue_info[queue].tid_bitmap ? 38299448a8cSJohannes Berg SCD_CFG_ENABLE_QUEUE : SCD_CFG_DISABLE_QUEUE; 38399448a8cSJohannes Berg if (cmd.action == SCD_CFG_DISABLE_QUEUE) 38499448a8cSJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_FREE; 38599448a8cSJohannes Berg 38699448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 387cfbc6c4cSSara Sharon "Disabling TXQ #%d tids=0x%x\n", 38899448a8cSJohannes Berg queue, 389cfbc6c4cSSara Sharon mvm->queue_info[queue].tid_bitmap); 39099448a8cSJohannes Berg 39199448a8cSJohannes Berg /* If the queue is still enabled - nothing left to do in this func */ 392f3f240f9SJohannes Berg if (cmd.action == SCD_CFG_ENABLE_QUEUE) 39399448a8cSJohannes Berg return 0; 39499448a8cSJohannes Berg 39599448a8cSJohannes Berg cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 39699448a8cSJohannes Berg cmd.tid = mvm->queue_info[queue].txq_tid; 39799448a8cSJohannes Berg 39899448a8cSJohannes Berg /* Make sure queue info is correct even though we overwrite it */ 399cfbc6c4cSSara Sharon WARN(mvm->queue_info[queue].tid_bitmap, 400cfbc6c4cSSara Sharon "TXQ #%d info out-of-sync - tids=0x%x\n", 401cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 40299448a8cSJohannes Berg 40399448a8cSJohannes Berg /* If we are here - the queue is freed and we can zero out these vals */ 40499448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap = 0; 405cfbc6c4cSSara Sharon 406cfbc6c4cSSara Sharon if (sta) { 407cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 408cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 409cfbc6c4cSSara Sharon 410cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 41195b0f666SJose Ignacio Tornos Martinez list_del_init(&mvmtxq->list); 412cfbc6c4cSSara Sharon } 41399448a8cSJohannes Berg 41499448a8cSJohannes Berg /* Regardless if this is a reserved TXQ for a STA - mark it as false */ 41599448a8cSJohannes Berg mvm->queue_info[queue].reserved = false; 41699448a8cSJohannes Berg 41799448a8cSJohannes Berg iwl_trans_txq_disable(mvm->trans, queue, false); 41864ff7eb0SJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, 41999448a8cSJohannes Berg sizeof(struct iwl_scd_txq_cfg_cmd), &cmd); 42099448a8cSJohannes Berg 42199448a8cSJohannes Berg if (ret) 42299448a8cSJohannes Berg IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n", 42399448a8cSJohannes Berg queue, ret); 42499448a8cSJohannes Berg return ret; 42599448a8cSJohannes Berg } 42699448a8cSJohannes Berg 42742db09c1SLiad Kaufman static int iwl_mvm_get_queue_agg_tids(struct iwl_mvm *mvm, int queue) 42842db09c1SLiad Kaufman { 42942db09c1SLiad Kaufman struct ieee80211_sta *sta; 43042db09c1SLiad Kaufman struct iwl_mvm_sta *mvmsta; 43142db09c1SLiad Kaufman unsigned long tid_bitmap; 43242db09c1SLiad Kaufman unsigned long agg_tids = 0; 433806911daSSharon Dvir u8 sta_id; 43442db09c1SLiad Kaufman int tid; 43542db09c1SLiad Kaufman 43642db09c1SLiad Kaufman lockdep_assert_held(&mvm->mutex); 43742db09c1SLiad Kaufman 438bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 439bb49701bSSara Sharon return -EINVAL; 440bb49701bSSara Sharon 44142db09c1SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 44242db09c1SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 44342db09c1SLiad Kaufman 44442db09c1SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 44542db09c1SLiad Kaufman lockdep_is_held(&mvm->mutex)); 44642db09c1SLiad Kaufman 44742db09c1SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 44842db09c1SLiad Kaufman return -EINVAL; 44942db09c1SLiad Kaufman 45042db09c1SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 45142db09c1SLiad Kaufman 45242db09c1SLiad Kaufman spin_lock_bh(&mvmsta->lock); 45342db09c1SLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 45442db09c1SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 45542db09c1SLiad Kaufman agg_tids |= BIT(tid); 45642db09c1SLiad Kaufman } 45742db09c1SLiad Kaufman spin_unlock_bh(&mvmsta->lock); 45842db09c1SLiad Kaufman 45942db09c1SLiad Kaufman return agg_tids; 46042db09c1SLiad Kaufman } 46142db09c1SLiad Kaufman 4629794c64fSLiad Kaufman /* 4639794c64fSLiad Kaufman * Remove a queue from a station's resources. 4649794c64fSLiad Kaufman * Note that this only marks as free. It DOESN'T delete a BA agreement, and 4659794c64fSLiad Kaufman * doesn't disable the queue 4669794c64fSLiad Kaufman */ 4679794c64fSLiad Kaufman static int iwl_mvm_remove_sta_queue_marking(struct iwl_mvm *mvm, int queue) 4689794c64fSLiad Kaufman { 4699794c64fSLiad Kaufman struct ieee80211_sta *sta; 4709794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 4719794c64fSLiad Kaufman unsigned long tid_bitmap; 4729794c64fSLiad Kaufman unsigned long disable_agg_tids = 0; 4739794c64fSLiad Kaufman u8 sta_id; 4749794c64fSLiad Kaufman int tid; 4759794c64fSLiad Kaufman 4769794c64fSLiad Kaufman lockdep_assert_held(&mvm->mutex); 4779794c64fSLiad Kaufman 478bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 479bb49701bSSara Sharon return -EINVAL; 480bb49701bSSara Sharon 4819794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 4829794c64fSLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 4839794c64fSLiad Kaufman 4849794c64fSLiad Kaufman rcu_read_lock(); 4859794c64fSLiad Kaufman 4869794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 4879794c64fSLiad Kaufman 4889794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 4899794c64fSLiad Kaufman rcu_read_unlock(); 4909794c64fSLiad Kaufman return 0; 4919794c64fSLiad Kaufman } 4929794c64fSLiad Kaufman 4939794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 4949794c64fSLiad Kaufman 4959794c64fSLiad Kaufman spin_lock_bh(&mvmsta->lock); 49642db09c1SLiad Kaufman /* Unmap MAC queues and TIDs from this queue */ 4979794c64fSLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 498cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 499cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 500cfbc6c4cSSara Sharon 5019794c64fSLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 5029794c64fSLiad Kaufman disable_agg_tids |= BIT(tid); 5036862fceeSSara Sharon mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 504cfbc6c4cSSara Sharon 505cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 50695b0f666SJose Ignacio Tornos Martinez list_del_init(&mvmtxq->list); 5079794c64fSLiad Kaufman } 5089794c64fSLiad Kaufman 50942db09c1SLiad Kaufman mvmsta->tfd_queue_msk &= ~BIT(queue); /* Don't use this queue anymore */ 5109794c64fSLiad Kaufman spin_unlock_bh(&mvmsta->lock); 5119794c64fSLiad Kaufman 5129794c64fSLiad Kaufman rcu_read_unlock(); 5139794c64fSLiad Kaufman 51406bc6f6eSJohannes Berg /* 51506bc6f6eSJohannes Berg * The TX path may have been using this TXQ_ID from the tid_data, 51606bc6f6eSJohannes Berg * so make sure it's no longer running so that we can safely reuse 51706bc6f6eSJohannes Berg * this TXQ later. We've set all the TIDs to IWL_MVM_INVALID_QUEUE 51806bc6f6eSJohannes Berg * above, but nothing guarantees we've stopped using them. Thus, 51906bc6f6eSJohannes Berg * without this, we could get to iwl_mvm_disable_txq() and remove 52006bc6f6eSJohannes Berg * the queue while still sending frames to it. 52106bc6f6eSJohannes Berg */ 52206bc6f6eSJohannes Berg synchronize_net(); 52306bc6f6eSJohannes Berg 5249794c64fSLiad Kaufman return disable_agg_tids; 5259794c64fSLiad Kaufman } 5269794c64fSLiad Kaufman 52701796ff2SSara Sharon static int iwl_mvm_free_inactive_queue(struct iwl_mvm *mvm, int queue, 528cfbc6c4cSSara Sharon struct ieee80211_sta *old_sta, 529724fe771SJohannes Berg u8 new_sta_id) 53001796ff2SSara Sharon { 53101796ff2SSara Sharon struct iwl_mvm_sta *mvmsta; 532cfbc6c4cSSara Sharon u8 sta_id, tid; 53301796ff2SSara Sharon unsigned long disable_agg_tids = 0; 534724fe771SJohannes Berg bool same_sta; 535c6ce1c74SJohannes Berg u16 queue_tmp = queue; 53601796ff2SSara Sharon int ret; 53701796ff2SSara Sharon 53801796ff2SSara Sharon lockdep_assert_held(&mvm->mutex); 53901796ff2SSara Sharon 540bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 541bb49701bSSara Sharon return -EINVAL; 542bb49701bSSara Sharon 54301796ff2SSara Sharon sta_id = mvm->queue_info[queue].ra_sta_id; 54401796ff2SSara Sharon tid = mvm->queue_info[queue].txq_tid; 54501796ff2SSara Sharon 546724fe771SJohannes Berg same_sta = sta_id == new_sta_id; 547724fe771SJohannes Berg 54801796ff2SSara Sharon mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 549e3df1e4bSSharon Dvir if (WARN_ON(!mvmsta)) 550e3df1e4bSSharon Dvir return -EINVAL; 55101796ff2SSara Sharon 55201796ff2SSara Sharon disable_agg_tids = iwl_mvm_remove_sta_queue_marking(mvm, queue); 55301796ff2SSara Sharon /* Disable the queue */ 55401796ff2SSara Sharon if (disable_agg_tids) 55501796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 55601796ff2SSara Sharon disable_agg_tids, false); 55701796ff2SSara Sharon 558c5a976cfSJohannes Berg ret = iwl_mvm_disable_txq(mvm, old_sta, sta_id, &queue_tmp, tid); 55901796ff2SSara Sharon if (ret) { 56001796ff2SSara Sharon IWL_ERR(mvm, 56101796ff2SSara Sharon "Failed to free inactive queue %d (ret=%d)\n", 56201796ff2SSara Sharon queue, ret); 56301796ff2SSara Sharon 56401796ff2SSara Sharon return ret; 56501796ff2SSara Sharon } 56601796ff2SSara Sharon 56701796ff2SSara Sharon /* If TXQ is allocated to another STA, update removal in FW */ 56801796ff2SSara Sharon if (!same_sta) 56901796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 0, true); 57001796ff2SSara Sharon 57101796ff2SSara Sharon return 0; 57201796ff2SSara Sharon } 57301796ff2SSara Sharon 57442db09c1SLiad Kaufman static int iwl_mvm_get_shared_queue(struct iwl_mvm *mvm, 57542db09c1SLiad Kaufman unsigned long tfd_queue_mask, u8 ac) 57642db09c1SLiad Kaufman { 57742db09c1SLiad Kaufman int queue = 0; 57842db09c1SLiad Kaufman u8 ac_to_queue[IEEE80211_NUM_ACS]; 57942db09c1SLiad Kaufman int i; 58042db09c1SLiad Kaufman 58190d2d94cSJohannes Berg /* 58290d2d94cSJohannes Berg * This protects us against grabbing a queue that's being reconfigured 58390d2d94cSJohannes Berg * by the inactivity checker. 58490d2d94cSJohannes Berg */ 58590d2d94cSJohannes Berg lockdep_assert_held(&mvm->mutex); 58690d2d94cSJohannes Berg 587bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 588bb49701bSSara Sharon return -EINVAL; 58942db09c1SLiad Kaufman 59042db09c1SLiad Kaufman memset(&ac_to_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(ac_to_queue)); 59142db09c1SLiad Kaufman 59242db09c1SLiad Kaufman /* See what ACs the existing queues for this STA have */ 59342db09c1SLiad Kaufman for_each_set_bit(i, &tfd_queue_mask, IWL_MVM_DQA_MAX_DATA_QUEUE) { 59442db09c1SLiad Kaufman /* Only DATA queues can be shared */ 59542db09c1SLiad Kaufman if (i < IWL_MVM_DQA_MIN_DATA_QUEUE && 59642db09c1SLiad Kaufman i != IWL_MVM_DQA_BSS_CLIENT_QUEUE) 59742db09c1SLiad Kaufman continue; 59842db09c1SLiad Kaufman 59942db09c1SLiad Kaufman ac_to_queue[mvm->queue_info[i].mac80211_ac] = i; 60042db09c1SLiad Kaufman } 60142db09c1SLiad Kaufman 60242db09c1SLiad Kaufman /* 60342db09c1SLiad Kaufman * The queue to share is chosen only from DATA queues as follows (in 60442db09c1SLiad Kaufman * descending priority): 60542db09c1SLiad Kaufman * 1. An AC_BE queue 60642db09c1SLiad Kaufman * 2. Same AC queue 60742db09c1SLiad Kaufman * 3. Highest AC queue that is lower than new AC 60842db09c1SLiad Kaufman * 4. Any existing AC (there always is at least 1 DATA queue) 60942db09c1SLiad Kaufman */ 61042db09c1SLiad Kaufman 61142db09c1SLiad Kaufman /* Priority 1: An AC_BE queue */ 61242db09c1SLiad Kaufman if (ac_to_queue[IEEE80211_AC_BE] != IEEE80211_INVAL_HW_QUEUE) 61342db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BE]; 61442db09c1SLiad Kaufman /* Priority 2: Same AC queue */ 61542db09c1SLiad Kaufman else if (ac_to_queue[ac] != IEEE80211_INVAL_HW_QUEUE) 61642db09c1SLiad Kaufman queue = ac_to_queue[ac]; 61742db09c1SLiad Kaufman /* Priority 3a: If new AC is VO and VI exists - use VI */ 61842db09c1SLiad Kaufman else if (ac == IEEE80211_AC_VO && 61942db09c1SLiad Kaufman ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 62042db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 62142db09c1SLiad Kaufman /* Priority 3b: No BE so only AC less than the new one is BK */ 62242db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_BK] != IEEE80211_INVAL_HW_QUEUE) 62342db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BK]; 62442db09c1SLiad Kaufman /* Priority 4a: No BE nor BK - use VI if exists */ 62542db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 62642db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 62742db09c1SLiad Kaufman /* Priority 4b: No BE, BK nor VI - use VO if exists */ 62842db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VO] != IEEE80211_INVAL_HW_QUEUE) 62942db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VO]; 63042db09c1SLiad Kaufman 63142db09c1SLiad Kaufman /* Make sure queue found (or not) is legal */ 6329f9af3d7SLiad Kaufman if (!iwl_mvm_is_dqa_data_queue(mvm, queue) && 6339f9af3d7SLiad Kaufman !iwl_mvm_is_dqa_mgmt_queue(mvm, queue) && 6349f9af3d7SLiad Kaufman (queue != IWL_MVM_DQA_BSS_CLIENT_QUEUE)) { 63542db09c1SLiad Kaufman IWL_ERR(mvm, "No DATA queues available to share\n"); 6369f9af3d7SLiad Kaufman return -ENOSPC; 6379f9af3d7SLiad Kaufman } 6389f9af3d7SLiad Kaufman 63942db09c1SLiad Kaufman return queue; 64042db09c1SLiad Kaufman } 64142db09c1SLiad Kaufman 642a54844d4SJohannes Berg /* Re-configure the SCD for a queue that has already been configured */ 643a54844d4SJohannes Berg static int iwl_mvm_reconfig_scd(struct iwl_mvm *mvm, int queue, int fifo, 644a54844d4SJohannes Berg int sta_id, int tid, int frame_limit, u16 ssn) 645a54844d4SJohannes Berg { 646a54844d4SJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 647a54844d4SJohannes Berg .scd_queue = queue, 648a54844d4SJohannes Berg .action = SCD_CFG_ENABLE_QUEUE, 649a54844d4SJohannes Berg .window = frame_limit, 650a54844d4SJohannes Berg .sta_id = sta_id, 651a54844d4SJohannes Berg .ssn = cpu_to_le16(ssn), 652a54844d4SJohannes Berg .tx_fifo = fifo, 653a54844d4SJohannes Berg .aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 654a54844d4SJohannes Berg queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE), 655a54844d4SJohannes Berg .tid = tid, 656a54844d4SJohannes Berg }; 657a54844d4SJohannes Berg int ret; 658a54844d4SJohannes Berg 659a54844d4SJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 660a54844d4SJohannes Berg return -EINVAL; 661a54844d4SJohannes Berg 662a54844d4SJohannes Berg if (WARN(mvm->queue_info[queue].tid_bitmap == 0, 663a54844d4SJohannes Berg "Trying to reconfig unallocated queue %d\n", queue)) 664a54844d4SJohannes Berg return -ENXIO; 665a54844d4SJohannes Berg 666a54844d4SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Reconfig SCD for TXQ #%d\n", queue); 667a54844d4SJohannes Berg 668a54844d4SJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 669a54844d4SJohannes Berg WARN_ONCE(ret, "Failed to re-configure queue %d on FIFO %d, ret=%d\n", 670a54844d4SJohannes Berg queue, fifo, ret); 671a54844d4SJohannes Berg 672a54844d4SJohannes Berg return ret; 673a54844d4SJohannes Berg } 674a54844d4SJohannes Berg 67558f2cc57SLiad Kaufman /* 6769f9af3d7SLiad Kaufman * If a given queue has a higher AC than the TID stream that is being compared 6779f9af3d7SLiad Kaufman * to, the queue needs to be redirected to the lower AC. This function does that 67858f2cc57SLiad Kaufman * in such a case, otherwise - if no redirection required - it does nothing, 67958f2cc57SLiad Kaufman * unless the %force param is true. 68058f2cc57SLiad Kaufman */ 681cfbc6c4cSSara Sharon static int iwl_mvm_redirect_queue(struct iwl_mvm *mvm, int queue, int tid, 68258f2cc57SLiad Kaufman int ac, int ssn, unsigned int wdg_timeout, 683cfbc6c4cSSara Sharon bool force, struct iwl_mvm_txq *txq) 68458f2cc57SLiad Kaufman { 68558f2cc57SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 68658f2cc57SLiad Kaufman .scd_queue = queue, 687f7c692deSLiad Kaufman .action = SCD_CFG_DISABLE_QUEUE, 68858f2cc57SLiad Kaufman }; 68958f2cc57SLiad Kaufman bool shared_queue; 69058f2cc57SLiad Kaufman int ret; 69158f2cc57SLiad Kaufman 692bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 693bb49701bSSara Sharon return -EINVAL; 694bb49701bSSara Sharon 69558f2cc57SLiad Kaufman /* 69658f2cc57SLiad Kaufman * If the AC is lower than current one - FIFO needs to be redirected to 69758f2cc57SLiad Kaufman * the lowest one of the streams in the queue. Check if this is needed 69858f2cc57SLiad Kaufman * here. 69958f2cc57SLiad Kaufman * Notice that the enum ieee80211_ac_numbers is "flipped", so BK is with 70058f2cc57SLiad Kaufman * value 3 and VO with value 0, so to check if ac X is lower than ac Y 70158f2cc57SLiad Kaufman * we need to check if the numerical value of X is LARGER than of Y. 70258f2cc57SLiad Kaufman */ 70358f2cc57SLiad Kaufman if (ac <= mvm->queue_info[queue].mac80211_ac && !force) { 70458f2cc57SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 70558f2cc57SLiad Kaufman "No redirection needed on TXQ #%d\n", 70658f2cc57SLiad Kaufman queue); 70758f2cc57SLiad Kaufman return 0; 70858f2cc57SLiad Kaufman } 70958f2cc57SLiad Kaufman 71058f2cc57SLiad Kaufman cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 71158f2cc57SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[mvm->queue_info[queue].mac80211_ac]; 712edbe961cSLiad Kaufman cmd.tid = mvm->queue_info[queue].txq_tid; 7131c14089eSJohannes Berg shared_queue = hweight16(mvm->queue_info[queue].tid_bitmap) > 1; 71458f2cc57SLiad Kaufman 7159f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Redirecting TXQ #%d to FIFO #%d\n", 71658f2cc57SLiad Kaufman queue, iwl_mvm_ac_to_tx_fifo[ac]); 71758f2cc57SLiad Kaufman 718cfbc6c4cSSara Sharon /* Stop the queue and wait for it to empty */ 719cfbc6c4cSSara Sharon txq->stopped = true; 720cfbc6c4cSSara Sharon 721a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(queue)); 72258f2cc57SLiad Kaufman if (ret) { 72358f2cc57SLiad Kaufman IWL_ERR(mvm, "Error draining queue %d before reconfig\n", 72458f2cc57SLiad Kaufman queue); 72558f2cc57SLiad Kaufman ret = -EIO; 72658f2cc57SLiad Kaufman goto out; 72758f2cc57SLiad Kaufman } 72858f2cc57SLiad Kaufman 72958f2cc57SLiad Kaufman /* Before redirecting the queue we need to de-activate it */ 73058f2cc57SLiad Kaufman iwl_trans_txq_disable(mvm->trans, queue, false); 73158f2cc57SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 73258f2cc57SLiad Kaufman if (ret) 73358f2cc57SLiad Kaufman IWL_ERR(mvm, "Failed SCD disable TXQ %d (ret=%d)\n", queue, 73458f2cc57SLiad Kaufman ret); 73558f2cc57SLiad Kaufman 73658f2cc57SLiad Kaufman /* Make sure the SCD wrptr is correctly set before reconfiguring */ 737ca3b9c6bSSara Sharon iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, wdg_timeout); 73858f2cc57SLiad Kaufman 739edbe961cSLiad Kaufman /* Update the TID "owner" of the queue */ 740edbe961cSLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 741edbe961cSLiad Kaufman 74258f2cc57SLiad Kaufman /* TODO: Work-around SCD bug when moving back by multiples of 0x40 */ 74358f2cc57SLiad Kaufman 74458f2cc57SLiad Kaufman /* Redirect to lower AC */ 74558f2cc57SLiad Kaufman iwl_mvm_reconfig_scd(mvm, queue, iwl_mvm_ac_to_tx_fifo[ac], 7460ec9257bSSara Sharon cmd.sta_id, tid, IWL_FRAME_LIMIT, ssn); 74758f2cc57SLiad Kaufman 74858f2cc57SLiad Kaufman /* Update AC marking of the queue */ 74958f2cc57SLiad Kaufman mvm->queue_info[queue].mac80211_ac = ac; 75058f2cc57SLiad Kaufman 75158f2cc57SLiad Kaufman /* 75258f2cc57SLiad Kaufman * Mark queue as shared in transport if shared 75358f2cc57SLiad Kaufman * Note this has to be done after queue enablement because enablement 75458f2cc57SLiad Kaufman * can also set this value, and there is no indication there to shared 75558f2cc57SLiad Kaufman * queues 75658f2cc57SLiad Kaufman */ 75758f2cc57SLiad Kaufman if (shared_queue) 75858f2cc57SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 75958f2cc57SLiad Kaufman 76058f2cc57SLiad Kaufman out: 761cfbc6c4cSSara Sharon /* Continue using the queue */ 762cfbc6c4cSSara Sharon txq->stopped = false; 76358f2cc57SLiad Kaufman 76458f2cc57SLiad Kaufman return ret; 76558f2cc57SLiad Kaufman } 76658f2cc57SLiad Kaufman 76799448a8cSJohannes Berg static int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 sta_id, 76899448a8cSJohannes Berg u8 minq, u8 maxq) 76999448a8cSJohannes Berg { 77099448a8cSJohannes Berg int i; 77199448a8cSJohannes Berg 772f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 77399448a8cSJohannes Berg 774e5b72e3bSJohannes Berg if (WARN(maxq >= mvm->trans->trans_cfg->base_params->num_of_queues, 775e5b72e3bSJohannes Berg "max queue %d >= num_of_queues (%d)", maxq, 776e5b72e3bSJohannes Berg mvm->trans->trans_cfg->base_params->num_of_queues)) 777e5b72e3bSJohannes Berg maxq = mvm->trans->trans_cfg->base_params->num_of_queues - 1; 778e5b72e3bSJohannes Berg 77999448a8cSJohannes Berg /* This should not be hit with new TX path */ 78099448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 78199448a8cSJohannes Berg return -ENOSPC; 78299448a8cSJohannes Berg 78399448a8cSJohannes Berg /* Start by looking for a free queue */ 78499448a8cSJohannes Berg for (i = minq; i <= maxq; i++) 7851c14089eSJohannes Berg if (mvm->queue_info[i].tid_bitmap == 0 && 78699448a8cSJohannes Berg mvm->queue_info[i].status == IWL_MVM_QUEUE_FREE) 78799448a8cSJohannes Berg return i; 78899448a8cSJohannes Berg 78999448a8cSJohannes Berg return -ENOSPC; 79099448a8cSJohannes Berg } 79199448a8cSJohannes Berg 79209369983SJohannes Berg static int iwl_mvm_get_queue_size(struct ieee80211_sta *sta) 79309369983SJohannes Berg { 79457974a55SGregory Greenman int max_size = IWL_DEFAULT_QUEUE_SIZE; 79557974a55SGregory Greenman unsigned int link_id; 79657974a55SGregory Greenman 79709369983SJohannes Berg /* this queue isn't used for traffic (cab_queue) */ 79809369983SJohannes Berg if (!sta) 79909369983SJohannes Berg return IWL_MGMT_QUEUE_SIZE; 80009369983SJohannes Berg 80157974a55SGregory Greenman rcu_read_lock(); 80257974a55SGregory Greenman 80357974a55SGregory Greenman for (link_id = 0; link_id < ARRAY_SIZE(sta->link); link_id++) { 80457974a55SGregory Greenman struct ieee80211_link_sta *link = 80557974a55SGregory Greenman rcu_dereference(sta->link[link_id]); 80657974a55SGregory Greenman 80757974a55SGregory Greenman if (!link) 80857974a55SGregory Greenman continue; 80957974a55SGregory Greenman 81009369983SJohannes Berg /* support for 1k ba size */ 81157974a55SGregory Greenman if (link->eht_cap.has_eht && 81257974a55SGregory Greenman max_size < IWL_DEFAULT_QUEUE_SIZE_EHT) 81357974a55SGregory Greenman max_size = IWL_DEFAULT_QUEUE_SIZE_EHT; 81409369983SJohannes Berg 81509369983SJohannes Berg /* support for 256 ba size */ 81657974a55SGregory Greenman if (link->he_cap.has_he && 81757974a55SGregory Greenman max_size < IWL_DEFAULT_QUEUE_SIZE_HE) 81857974a55SGregory Greenman max_size = IWL_DEFAULT_QUEUE_SIZE_HE; 81957974a55SGregory Greenman } 82009369983SJohannes Berg 82157974a55SGregory Greenman rcu_read_unlock(); 82257974a55SGregory Greenman return max_size; 82309369983SJohannes Berg } 82409369983SJohannes Berg 825006c152aSMiri Korenblit int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm, 82609369983SJohannes Berg struct ieee80211_sta *sta, 82799448a8cSJohannes Berg u8 sta_id, u8 tid, unsigned int timeout) 82899448a8cSJohannes Berg { 829d5399f11SMordechay Goodstein int queue, size; 83057974a55SGregory Greenman u32 sta_mask = 0; 83199448a8cSJohannes Berg 83299448a8cSJohannes Berg if (tid == IWL_MAX_TID_COUNT) { 83399448a8cSJohannes Berg tid = IWL_MGMT_TID; 834ff911dcaSShaul Triebitz size = max_t(u32, IWL_MGMT_QUEUE_SIZE, 835ff911dcaSShaul Triebitz mvm->trans->cfg->min_txq_size); 836d5399f11SMordechay Goodstein } else { 83709369983SJohannes Berg size = iwl_mvm_get_queue_size(sta); 838d5399f11SMordechay Goodstein } 839d5399f11SMordechay Goodstein 840d5399f11SMordechay Goodstein /* take the min with bc tbl entries allowed */ 841d5399f11SMordechay Goodstein size = min_t(u32, size, mvm->trans->txqs.bc_tbl_size / sizeof(u16)); 842d5399f11SMordechay Goodstein 843d5399f11SMordechay Goodstein /* size needs to be power of 2 values for calculating read/write pointers */ 844d5399f11SMordechay Goodstein size = rounddown_pow_of_two(size); 845d5399f11SMordechay Goodstein 84657974a55SGregory Greenman if (sta) { 84757974a55SGregory Greenman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 84857974a55SGregory Greenman unsigned int link_id; 84957974a55SGregory Greenman 85057974a55SGregory Greenman for (link_id = 0; 85157974a55SGregory Greenman link_id < ARRAY_SIZE(mvmsta->link); 85257974a55SGregory Greenman link_id++) { 85357974a55SGregory Greenman struct iwl_mvm_link_sta *link = 85457974a55SGregory Greenman rcu_dereference_protected(mvmsta->link[link_id], 85557974a55SGregory Greenman lockdep_is_held(&mvm->mutex)); 85657974a55SGregory Greenman 85757974a55SGregory Greenman if (!link) 85857974a55SGregory Greenman continue; 85957974a55SGregory Greenman 86057974a55SGregory Greenman sta_mask |= BIT(link->sta_id); 86157974a55SGregory Greenman } 86257974a55SGregory Greenman } else { 86357974a55SGregory Greenman sta_mask |= BIT(sta_id); 86457974a55SGregory Greenman } 86557974a55SGregory Greenman 86657974a55SGregory Greenman if (!sta_mask) 86757974a55SGregory Greenman return -EINVAL; 86857974a55SGregory Greenman 86992f78d4bSJohannes Berg do { 87057974a55SGregory Greenman queue = iwl_trans_txq_alloc(mvm->trans, 0, sta_mask, 87185b17a33SJohannes Berg tid, size, timeout); 87292f78d4bSJohannes Berg 87392f78d4bSJohannes Berg if (queue < 0) 87499448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 87557974a55SGregory Greenman "Failed allocating TXQ of size %d for sta mask %x tid %d, ret: %d\n", 87657974a55SGregory Greenman size, sta_mask, tid, queue); 87792f78d4bSJohannes Berg size /= 2; 87892f78d4bSJohannes Berg } while (queue < 0 && size >= 16); 87992f78d4bSJohannes Berg 88092f78d4bSJohannes Berg if (queue < 0) 88199448a8cSJohannes Berg return queue; 88299448a8cSJohannes Berg 88357974a55SGregory Greenman IWL_DEBUG_TX_QUEUES(mvm, "Enabling TXQ #%d for sta mask 0x%x tid %d\n", 88457974a55SGregory Greenman queue, sta_mask, tid); 88599448a8cSJohannes Berg 88699448a8cSJohannes Berg return queue; 88799448a8cSJohannes Berg } 88899448a8cSJohannes Berg 889310181ecSSara Sharon static int iwl_mvm_sta_alloc_queue_tvqm(struct iwl_mvm *mvm, 890310181ecSSara Sharon struct ieee80211_sta *sta, u8 ac, 891310181ecSSara Sharon int tid) 892310181ecSSara Sharon { 893310181ecSSara Sharon struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 894cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 895cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 896310181ecSSara Sharon unsigned int wdg_timeout = 897310181ecSSara Sharon iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 898310181ecSSara Sharon int queue = -1; 899310181ecSSara Sharon 900310181ecSSara Sharon lockdep_assert_held(&mvm->mutex); 901310181ecSSara Sharon 902310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 903310181ecSSara Sharon "Allocating queue for sta %d on tid %d\n", 904c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid); 905c8ee33e1SGregory Greenman queue = iwl_mvm_tvqm_enable_txq(mvm, sta, mvmsta->deflink.sta_id, 90609369983SJohannes Berg tid, wdg_timeout); 907310181ecSSara Sharon if (queue < 0) 908310181ecSSara Sharon return queue; 909310181ecSSara Sharon 910cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 911cfbc6c4cSSara Sharon mvm->tvqm_info[queue].txq_tid = tid; 912c8ee33e1SGregory Greenman mvm->tvqm_info[queue].sta_id = mvmsta->deflink.sta_id; 913cfbc6c4cSSara Sharon 914310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, "Allocated queue is %d\n", queue); 915310181ecSSara Sharon 916310181ecSSara Sharon spin_lock_bh(&mvmsta->lock); 917310181ecSSara Sharon mvmsta->tid_data[tid].txq_id = queue; 918310181ecSSara Sharon spin_unlock_bh(&mvmsta->lock); 919310181ecSSara Sharon 920310181ecSSara Sharon return 0; 921310181ecSSara Sharon } 922310181ecSSara Sharon 923cfbc6c4cSSara Sharon static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, 924cfbc6c4cSSara Sharon struct ieee80211_sta *sta, 925cfbc6c4cSSara Sharon int queue, u8 sta_id, u8 tid) 92699448a8cSJohannes Berg { 92799448a8cSJohannes Berg bool enable_queue = true; 92899448a8cSJohannes Berg 92999448a8cSJohannes Berg /* Make sure this TID isn't already enabled */ 93099448a8cSJohannes Berg if (mvm->queue_info[queue].tid_bitmap & BIT(tid)) { 93199448a8cSJohannes Berg IWL_ERR(mvm, "Trying to enable TXQ %d with existing TID %d\n", 93299448a8cSJohannes Berg queue, tid); 93399448a8cSJohannes Berg return false; 93499448a8cSJohannes Berg } 93599448a8cSJohannes Berg 93699448a8cSJohannes Berg /* Update mappings and refcounts */ 9371c14089eSJohannes Berg if (mvm->queue_info[queue].tid_bitmap) 93899448a8cSJohannes Berg enable_queue = false; 93999448a8cSJohannes Berg 94099448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap |= BIT(tid); 94199448a8cSJohannes Berg mvm->queue_info[queue].ra_sta_id = sta_id; 94299448a8cSJohannes Berg 94399448a8cSJohannes Berg if (enable_queue) { 94499448a8cSJohannes Berg if (tid != IWL_MAX_TID_COUNT) 94599448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = 94699448a8cSJohannes Berg tid_to_mac80211_ac[tid]; 94799448a8cSJohannes Berg else 94899448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = IEEE80211_AC_VO; 94999448a8cSJohannes Berg 95099448a8cSJohannes Berg mvm->queue_info[queue].txq_tid = tid; 95199448a8cSJohannes Berg } 95299448a8cSJohannes Berg 953cfbc6c4cSSara Sharon if (sta) { 954cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 955cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 956cfbc6c4cSSara Sharon 957cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 958cfbc6c4cSSara Sharon } 959cfbc6c4cSSara Sharon 96099448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 961cfbc6c4cSSara Sharon "Enabling TXQ #%d tids=0x%x\n", 962cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 96399448a8cSJohannes Berg 96499448a8cSJohannes Berg return enable_queue; 96599448a8cSJohannes Berg } 96699448a8cSJohannes Berg 967cfbc6c4cSSara Sharon static bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 968cfbc6c4cSSara Sharon int queue, u16 ssn, 96999448a8cSJohannes Berg const struct iwl_trans_txq_scd_cfg *cfg, 97099448a8cSJohannes Berg unsigned int wdg_timeout) 97199448a8cSJohannes Berg { 97299448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 97399448a8cSJohannes Berg .scd_queue = queue, 97499448a8cSJohannes Berg .action = SCD_CFG_ENABLE_QUEUE, 97599448a8cSJohannes Berg .window = cfg->frame_limit, 97699448a8cSJohannes Berg .sta_id = cfg->sta_id, 97799448a8cSJohannes Berg .ssn = cpu_to_le16(ssn), 97899448a8cSJohannes Berg .tx_fifo = cfg->fifo, 97999448a8cSJohannes Berg .aggregate = cfg->aggregate, 98099448a8cSJohannes Berg .tid = cfg->tid, 98199448a8cSJohannes Berg }; 98299448a8cSJohannes Berg bool inc_ssn; 98399448a8cSJohannes Berg 98499448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 98599448a8cSJohannes Berg return false; 98699448a8cSJohannes Berg 98799448a8cSJohannes Berg /* Send the enabling command if we need to */ 988cfbc6c4cSSara Sharon if (!iwl_mvm_update_txq_mapping(mvm, sta, queue, cfg->sta_id, cfg->tid)) 98999448a8cSJohannes Berg return false; 99099448a8cSJohannes Berg 99199448a8cSJohannes Berg inc_ssn = iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, 99299448a8cSJohannes Berg NULL, wdg_timeout); 99399448a8cSJohannes Berg if (inc_ssn) 99499448a8cSJohannes Berg le16_add_cpu(&cmd.ssn, 1); 99599448a8cSJohannes Berg 99699448a8cSJohannes Berg WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd), 99799448a8cSJohannes Berg "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo); 99899448a8cSJohannes Berg 99999448a8cSJohannes Berg return inc_ssn; 100099448a8cSJohannes Berg } 100199448a8cSJohannes Berg 1002b3a87f11SJohannes Berg static void iwl_mvm_change_queue_tid(struct iwl_mvm *mvm, int queue) 100319aefa45SLiad Kaufman { 100419aefa45SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 100519aefa45SLiad Kaufman .scd_queue = queue, 100619aefa45SLiad Kaufman .action = SCD_CFG_UPDATE_QUEUE_TID, 100719aefa45SLiad Kaufman }; 100819aefa45SLiad Kaufman int tid; 100919aefa45SLiad Kaufman unsigned long tid_bitmap; 101019aefa45SLiad Kaufman int ret; 101119aefa45SLiad Kaufman 101219aefa45SLiad Kaufman lockdep_assert_held(&mvm->mutex); 101319aefa45SLiad Kaufman 1014bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1015bb49701bSSara Sharon return; 1016bb49701bSSara Sharon 101719aefa45SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 101819aefa45SLiad Kaufman 101919aefa45SLiad Kaufman if (WARN(!tid_bitmap, "TXQ %d has no tids assigned to it\n", queue)) 102019aefa45SLiad Kaufman return; 102119aefa45SLiad Kaufman 102219aefa45SLiad Kaufman /* Find any TID for queue */ 102319aefa45SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 102419aefa45SLiad Kaufman cmd.tid = tid; 102519aefa45SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 102619aefa45SLiad Kaufman 102719aefa45SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 1028341ca402SLiad Kaufman if (ret) { 102919aefa45SLiad Kaufman IWL_ERR(mvm, "Failed to update owner of TXQ %d (ret=%d)\n", 103019aefa45SLiad Kaufman queue, ret); 1031341ca402SLiad Kaufman return; 1032341ca402SLiad Kaufman } 1033341ca402SLiad Kaufman 1034341ca402SLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 103519aefa45SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Changed TXQ %d ownership to tid %d\n", 103619aefa45SLiad Kaufman queue, tid); 103719aefa45SLiad Kaufman } 103819aefa45SLiad Kaufman 10399f9af3d7SLiad Kaufman static void iwl_mvm_unshare_queue(struct iwl_mvm *mvm, int queue) 10409f9af3d7SLiad Kaufman { 10419f9af3d7SLiad Kaufman struct ieee80211_sta *sta; 10429f9af3d7SLiad Kaufman struct iwl_mvm_sta *mvmsta; 1043806911daSSharon Dvir u8 sta_id; 10449f9af3d7SLiad Kaufman int tid = -1; 10459f9af3d7SLiad Kaufman unsigned long tid_bitmap; 10469f9af3d7SLiad Kaufman unsigned int wdg_timeout; 10479f9af3d7SLiad Kaufman int ssn; 10489f9af3d7SLiad Kaufman int ret = true; 10499f9af3d7SLiad Kaufman 1050bb49701bSSara Sharon /* queue sharing is disabled on new TX path */ 1051bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1052bb49701bSSara Sharon return; 1053bb49701bSSara Sharon 10549f9af3d7SLiad Kaufman lockdep_assert_held(&mvm->mutex); 10559f9af3d7SLiad Kaufman 10569f9af3d7SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 10579f9af3d7SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 10589f9af3d7SLiad Kaufman 10599f9af3d7SLiad Kaufman /* Find TID for queue, and make sure it is the only one on the queue */ 10609f9af3d7SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 10619f9af3d7SLiad Kaufman if (tid_bitmap != BIT(tid)) { 10629f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to unshare q %d, active tids=0x%lx\n", 10639f9af3d7SLiad Kaufman queue, tid_bitmap); 10649f9af3d7SLiad Kaufman return; 10659f9af3d7SLiad Kaufman } 10669f9af3d7SLiad Kaufman 10679f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Unsharing TXQ %d, keeping tid %d\n", queue, 10689f9af3d7SLiad Kaufman tid); 10699f9af3d7SLiad Kaufman 10709f9af3d7SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 10719f9af3d7SLiad Kaufman lockdep_is_held(&mvm->mutex)); 10729f9af3d7SLiad Kaufman 10739f9af3d7SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 10749f9af3d7SLiad Kaufman return; 10759f9af3d7SLiad Kaufman 10769f9af3d7SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 10779f9af3d7SLiad Kaufman wdg_timeout = iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 10789f9af3d7SLiad Kaufman 10799f9af3d7SLiad Kaufman ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 10809f9af3d7SLiad Kaufman 1081cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, 10829f9af3d7SLiad Kaufman tid_to_mac80211_ac[tid], ssn, 1083cfbc6c4cSSara Sharon wdg_timeout, true, 1084cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 10859f9af3d7SLiad Kaufman if (ret) { 10869f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to redirect TXQ %d\n", queue); 10879f9af3d7SLiad Kaufman return; 10889f9af3d7SLiad Kaufman } 10899f9af3d7SLiad Kaufman 10909f9af3d7SLiad Kaufman /* If aggs should be turned back on - do it */ 10919f9af3d7SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) { 10929cd70e80SEmmanuel Grumbach struct iwl_mvm_add_sta_cmd cmd = {0}; 10939f9af3d7SLiad Kaufman 10949f9af3d7SLiad Kaufman mvmsta->tid_disable_agg &= ~BIT(tid); 10959f9af3d7SLiad Kaufman 10969f9af3d7SLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 1097c8ee33e1SGregory Greenman cmd.sta_id = mvmsta->deflink.sta_id; 10989f9af3d7SLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 10999f9af3d7SLiad Kaufman cmd.modify_mask = STA_MODIFY_TID_DISABLE_TX; 11009f9af3d7SLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 11019f9af3d7SLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 11029f9af3d7SLiad Kaufman 11039f9af3d7SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 11049f9af3d7SLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), &cmd); 11059f9af3d7SLiad Kaufman if (!ret) { 11069f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 11079f9af3d7SLiad Kaufman "TXQ #%d is now aggregated again\n", 11089f9af3d7SLiad Kaufman queue); 11099f9af3d7SLiad Kaufman 11109f9af3d7SLiad Kaufman /* Mark queue intenally as aggregating again */ 11119f9af3d7SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, false); 11129f9af3d7SLiad Kaufman } 11139f9af3d7SLiad Kaufman } 11149f9af3d7SLiad Kaufman 11159f9af3d7SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 11169f9af3d7SLiad Kaufman } 11179f9af3d7SLiad Kaufman 111899448a8cSJohannes Berg /* 111999448a8cSJohannes Berg * Remove inactive TIDs of a given queue. 112099448a8cSJohannes Berg * If all queue TIDs are inactive - mark the queue as inactive 112199448a8cSJohannes Berg * If only some the queue TIDs are inactive - unmap them from the queue 1122724fe771SJohannes Berg * 1123724fe771SJohannes Berg * Returns %true if all TIDs were removed and the queue could be reused. 112499448a8cSJohannes Berg */ 1125724fe771SJohannes Berg static bool iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm, 112699448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta, int queue, 112790d2d94cSJohannes Berg unsigned long tid_bitmap, 1128b3a87f11SJohannes Berg unsigned long *unshare_queues, 1129b3a87f11SJohannes Berg unsigned long *changetid_queues) 113099448a8cSJohannes Berg { 1131af3cdfd3SJakub Kicinski unsigned int tid; 113299448a8cSJohannes Berg 113399448a8cSJohannes Berg lockdep_assert_held(&mvmsta->lock); 1134f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 113599448a8cSJohannes Berg 113699448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1137724fe771SJohannes Berg return false; 113899448a8cSJohannes Berg 113999448a8cSJohannes Berg /* Go over all non-active TIDs, incl. IWL_MAX_TID_COUNT (for mgmt) */ 114099448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 114199448a8cSJohannes Berg /* If some TFDs are still queued - don't mark TID as inactive */ 114299448a8cSJohannes Berg if (iwl_mvm_tid_queued(mvm, &mvmsta->tid_data[tid])) 114399448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 114499448a8cSJohannes Berg 114599448a8cSJohannes Berg /* Don't mark as inactive any TID that has an active BA */ 114699448a8cSJohannes Berg if (mvmsta->tid_data[tid].state != IWL_AGG_OFF) 114799448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 114899448a8cSJohannes Berg } 114999448a8cSJohannes Berg 1150724fe771SJohannes Berg /* If all TIDs in the queue are inactive - return it can be reused */ 115199448a8cSJohannes Berg if (tid_bitmap == mvm->queue_info[queue].tid_bitmap) { 1152724fe771SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Queue %d is inactive\n", queue); 1153724fe771SJohannes Berg return true; 115499448a8cSJohannes Berg } 115599448a8cSJohannes Berg 115699448a8cSJohannes Berg /* 115799448a8cSJohannes Berg * If we are here, this is a shared queue and not all TIDs timed-out. 115899448a8cSJohannes Berg * Remove the ones that did. 115999448a8cSJohannes Berg */ 116099448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1161d4530f63SJohannes Berg u16 q_tid_bitmap; 116299448a8cSJohannes Berg 116399448a8cSJohannes Berg mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 116499448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 116599448a8cSJohannes Berg 1166d4530f63SJohannes Berg q_tid_bitmap = mvm->queue_info[queue].tid_bitmap; 1167b3a87f11SJohannes Berg 1168b3a87f11SJohannes Berg /* 1169b3a87f11SJohannes Berg * We need to take into account a situation in which a TXQ was 1170b3a87f11SJohannes Berg * allocated to TID x, and then turned shared by adding TIDs y 1171b3a87f11SJohannes Berg * and z. If TID x becomes inactive and is removed from the TXQ, 1172b3a87f11SJohannes Berg * ownership must be given to one of the remaining TIDs. 1173b3a87f11SJohannes Berg * This is mainly because if TID x continues - a new queue can't 1174b3a87f11SJohannes Berg * be allocated for it as long as it is an owner of another TXQ. 1175b3a87f11SJohannes Berg * 1176b3a87f11SJohannes Berg * Mark this queue in the right bitmap, we'll send the command 1177b3a87f11SJohannes Berg * to the firmware later. 1178b3a87f11SJohannes Berg */ 1179d4530f63SJohannes Berg if (!(q_tid_bitmap & BIT(mvm->queue_info[queue].txq_tid))) 1180b3a87f11SJohannes Berg set_bit(queue, changetid_queues); 1181b3a87f11SJohannes Berg 118299448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 118399448a8cSJohannes Berg "Removing inactive TID %d from shared Q:%d\n", 118499448a8cSJohannes Berg tid, queue); 118599448a8cSJohannes Berg } 118699448a8cSJohannes Berg 118799448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 118899448a8cSJohannes Berg "TXQ #%d left with tid bitmap 0x%x\n", queue, 118999448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap); 119099448a8cSJohannes Berg 119199448a8cSJohannes Berg /* 119299448a8cSJohannes Berg * There may be different TIDs with the same mac queues, so make 119399448a8cSJohannes Berg * sure all TIDs have existing corresponding mac queues enabled 119499448a8cSJohannes Berg */ 119599448a8cSJohannes Berg tid_bitmap = mvm->queue_info[queue].tid_bitmap; 119699448a8cSJohannes Berg 119799448a8cSJohannes Berg /* If the queue is marked as shared - "unshare" it */ 11981c14089eSJohannes Berg if (hweight16(mvm->queue_info[queue].tid_bitmap) == 1 && 119999448a8cSJohannes Berg mvm->queue_info[queue].status == IWL_MVM_QUEUE_SHARED) { 120099448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Marking Q:%d for reconfig\n", 120199448a8cSJohannes Berg queue); 120290d2d94cSJohannes Berg set_bit(queue, unshare_queues); 120399448a8cSJohannes Berg } 1204724fe771SJohannes Berg 1205724fe771SJohannes Berg return false; 120699448a8cSJohannes Berg } 120799448a8cSJohannes Berg 1208724fe771SJohannes Berg /* 1209724fe771SJohannes Berg * Check for inactivity - this includes checking if any queue 1210724fe771SJohannes Berg * can be unshared and finding one (and only one) that can be 1211724fe771SJohannes Berg * reused. 1212724fe771SJohannes Berg * This function is also invoked as a sort of clean-up task, 1213724fe771SJohannes Berg * in which case @alloc_for_sta is IWL_MVM_INVALID_STA. 1214724fe771SJohannes Berg * 1215724fe771SJohannes Berg * Returns the queue number, or -ENOSPC. 1216724fe771SJohannes Berg */ 1217724fe771SJohannes Berg static int iwl_mvm_inactivity_check(struct iwl_mvm *mvm, u8 alloc_for_sta) 121899448a8cSJohannes Berg { 121999448a8cSJohannes Berg unsigned long now = jiffies; 122090d2d94cSJohannes Berg unsigned long unshare_queues = 0; 1221b3a87f11SJohannes Berg unsigned long changetid_queues = 0; 1222724fe771SJohannes Berg int i, ret, free_queue = -ENOSPC; 1223cfbc6c4cSSara Sharon struct ieee80211_sta *queue_owner = NULL; 122499448a8cSJohannes Berg 1225df2a2245SJohannes Berg lockdep_assert_held(&mvm->mutex); 1226df2a2245SJohannes Berg 122799448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1228724fe771SJohannes Berg return -ENOSPC; 122999448a8cSJohannes Berg 123099448a8cSJohannes Berg rcu_read_lock(); 123199448a8cSJohannes Berg 1232459ab045SJohannes Berg /* we skip the CMD queue below by starting at 1 */ 1233459ab045SJohannes Berg BUILD_BUG_ON(IWL_MVM_DQA_CMD_QUEUE != 0); 1234459ab045SJohannes Berg 1235459ab045SJohannes Berg for (i = 1; i < IWL_MAX_HW_QUEUES; i++) { 123699448a8cSJohannes Berg struct ieee80211_sta *sta; 123799448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta; 123899448a8cSJohannes Berg u8 sta_id; 123999448a8cSJohannes Berg int tid; 124099448a8cSJohannes Berg unsigned long inactive_tid_bitmap = 0; 124199448a8cSJohannes Berg unsigned long queue_tid_bitmap; 124299448a8cSJohannes Berg 124399448a8cSJohannes Berg queue_tid_bitmap = mvm->queue_info[i].tid_bitmap; 1244459ab045SJohannes Berg if (!queue_tid_bitmap) 1245459ab045SJohannes Berg continue; 124699448a8cSJohannes Berg 124799448a8cSJohannes Berg /* If TXQ isn't in active use anyway - nothing to do here... */ 124899448a8cSJohannes Berg if (mvm->queue_info[i].status != IWL_MVM_QUEUE_READY && 1249459ab045SJohannes Berg mvm->queue_info[i].status != IWL_MVM_QUEUE_SHARED) 125099448a8cSJohannes Berg continue; 125199448a8cSJohannes Berg 125299448a8cSJohannes Berg /* Check to see if there are inactive TIDs on this queue */ 125399448a8cSJohannes Berg for_each_set_bit(tid, &queue_tid_bitmap, 125499448a8cSJohannes Berg IWL_MAX_TID_COUNT + 1) { 125599448a8cSJohannes Berg if (time_after(mvm->queue_info[i].last_frame_time[tid] + 125699448a8cSJohannes Berg IWL_MVM_DQA_QUEUE_TIMEOUT, now)) 125799448a8cSJohannes Berg continue; 125899448a8cSJohannes Berg 125999448a8cSJohannes Berg inactive_tid_bitmap |= BIT(tid); 126099448a8cSJohannes Berg } 126199448a8cSJohannes Berg 126299448a8cSJohannes Berg /* If all TIDs are active - finish check on this queue */ 126399448a8cSJohannes Berg if (!inactive_tid_bitmap) 126499448a8cSJohannes Berg continue; 126599448a8cSJohannes Berg 126699448a8cSJohannes Berg /* 126799448a8cSJohannes Berg * If we are here - the queue hadn't been served recently and is 126899448a8cSJohannes Berg * in use 126999448a8cSJohannes Berg */ 127099448a8cSJohannes Berg 127199448a8cSJohannes Berg sta_id = mvm->queue_info[i].ra_sta_id; 127299448a8cSJohannes Berg sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 127399448a8cSJohannes Berg 127499448a8cSJohannes Berg /* 127599448a8cSJohannes Berg * If the STA doesn't exist anymore, it isn't an error. It could 127699448a8cSJohannes Berg * be that it was removed since getting the queues, and in this 127799448a8cSJohannes Berg * case it should've inactivated its queues anyway. 127899448a8cSJohannes Berg */ 127999448a8cSJohannes Berg if (IS_ERR_OR_NULL(sta)) 128099448a8cSJohannes Berg continue; 128199448a8cSJohannes Berg 128299448a8cSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 128399448a8cSJohannes Berg 1284f3f240f9SJohannes Berg spin_lock_bh(&mvmsta->lock); 1285724fe771SJohannes Berg ret = iwl_mvm_remove_inactive_tids(mvm, mvmsta, i, 128690d2d94cSJohannes Berg inactive_tid_bitmap, 1287b3a87f11SJohannes Berg &unshare_queues, 1288b3a87f11SJohannes Berg &changetid_queues); 1289e6d419f9SJohannes Berg if (ret && free_queue < 0) { 1290cfbc6c4cSSara Sharon queue_owner = sta; 1291e6d419f9SJohannes Berg free_queue = i; 1292cfbc6c4cSSara Sharon } 1293459ab045SJohannes Berg /* only unlock sta lock - we still need the queue info lock */ 1294f3f240f9SJohannes Berg spin_unlock_bh(&mvmsta->lock); 129599448a8cSJohannes Berg } 129699448a8cSJohannes Berg 1297df2a2245SJohannes Berg 1298df2a2245SJohannes Berg /* Reconfigure queues requiring reconfiguation */ 129990d2d94cSJohannes Berg for_each_set_bit(i, &unshare_queues, IWL_MAX_HW_QUEUES) 130090d2d94cSJohannes Berg iwl_mvm_unshare_queue(mvm, i); 1301b3a87f11SJohannes Berg for_each_set_bit(i, &changetid_queues, IWL_MAX_HW_QUEUES) 1302b3a87f11SJohannes Berg iwl_mvm_change_queue_tid(mvm, i); 1303724fe771SJohannes Berg 1304fbb1461aSJohannes Berg rcu_read_unlock(); 1305fbb1461aSJohannes Berg 1306724fe771SJohannes Berg if (free_queue >= 0 && alloc_for_sta != IWL_MVM_INVALID_STA) { 1307cfbc6c4cSSara Sharon ret = iwl_mvm_free_inactive_queue(mvm, free_queue, queue_owner, 1308724fe771SJohannes Berg alloc_for_sta); 1309fbb1461aSJohannes Berg if (ret) 1310724fe771SJohannes Berg return ret; 1311724fe771SJohannes Berg } 1312724fe771SJohannes Berg 1313724fe771SJohannes Berg return free_queue; 131499448a8cSJohannes Berg } 131599448a8cSJohannes Berg 1316c20e08b0SJohannes Berg static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm, 1317cfbc6c4cSSara Sharon struct ieee80211_sta *sta, u8 ac, int tid) 1318c20e08b0SJohannes Berg { 1319c20e08b0SJohannes Berg struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1320c20e08b0SJohannes Berg struct iwl_trans_txq_scd_cfg cfg = { 1321c20e08b0SJohannes Berg .fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac), 1322c8ee33e1SGregory Greenman .sta_id = mvmsta->deflink.sta_id, 1323c20e08b0SJohannes Berg .tid = tid, 1324c20e08b0SJohannes Berg .frame_limit = IWL_FRAME_LIMIT, 1325c20e08b0SJohannes Berg }; 1326c20e08b0SJohannes Berg unsigned int wdg_timeout = 1327c20e08b0SJohannes Berg iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 1328c20e08b0SJohannes Berg int queue = -1; 1329c6ce1c74SJohannes Berg u16 queue_tmp; 1330c20e08b0SJohannes Berg unsigned long disable_agg_tids = 0; 1331c20e08b0SJohannes Berg enum iwl_mvm_agg_state queue_state; 1332c20e08b0SJohannes Berg bool shared_queue = false, inc_ssn; 1333c20e08b0SJohannes Berg int ssn; 1334c20e08b0SJohannes Berg unsigned long tfd_queue_mask; 1335c20e08b0SJohannes Berg int ret; 1336c20e08b0SJohannes Berg 1337c20e08b0SJohannes Berg lockdep_assert_held(&mvm->mutex); 1338c20e08b0SJohannes Berg 1339c20e08b0SJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1340c20e08b0SJohannes Berg return iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 1341c20e08b0SJohannes Berg 1342c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1343c20e08b0SJohannes Berg tfd_queue_mask = mvmsta->tfd_queue_msk; 134435739348SSara Sharon ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 1345c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1346c20e08b0SJohannes Berg 1347cfbc6c4cSSara Sharon if (tid == IWL_MAX_TID_COUNT) { 1348c8ee33e1SGregory Greenman queue = iwl_mvm_find_free_queue(mvm, mvmsta->deflink.sta_id, 1349c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_MGMT_QUEUE, 1350c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_MGMT_QUEUE); 1351c20e08b0SJohannes Berg if (queue >= IWL_MVM_DQA_MIN_MGMT_QUEUE) 1352c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Found free MGMT queue #%d\n", 1353c20e08b0SJohannes Berg queue); 1354c20e08b0SJohannes Berg 1355c20e08b0SJohannes Berg /* If no such queue is found, we'll use a DATA queue instead */ 1356c20e08b0SJohannes Berg } 1357c20e08b0SJohannes Berg 1358c20e08b0SJohannes Berg if ((queue < 0 && mvmsta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) && 1359c20e08b0SJohannes Berg (mvm->queue_info[mvmsta->reserved_queue].status == 1360724fe771SJohannes Berg IWL_MVM_QUEUE_RESERVED)) { 1361c20e08b0SJohannes Berg queue = mvmsta->reserved_queue; 1362c20e08b0SJohannes Berg mvm->queue_info[queue].reserved = true; 1363c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Using reserved queue #%d\n", queue); 1364c20e08b0SJohannes Berg } 1365c20e08b0SJohannes Berg 1366c20e08b0SJohannes Berg if (queue < 0) 1367c8ee33e1SGregory Greenman queue = iwl_mvm_find_free_queue(mvm, mvmsta->deflink.sta_id, 1368c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 1369c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 1370724fe771SJohannes Berg if (queue < 0) { 1371724fe771SJohannes Berg /* try harder - perhaps kill an inactive queue */ 1372c8ee33e1SGregory Greenman queue = iwl_mvm_inactivity_check(mvm, mvmsta->deflink.sta_id); 1373c20e08b0SJohannes Berg } 1374c20e08b0SJohannes Berg 1375c20e08b0SJohannes Berg /* No free queue - we'll have to share */ 1376c20e08b0SJohannes Berg if (queue <= 0) { 1377c20e08b0SJohannes Berg queue = iwl_mvm_get_shared_queue(mvm, tfd_queue_mask, ac); 1378c20e08b0SJohannes Berg if (queue > 0) { 1379c20e08b0SJohannes Berg shared_queue = true; 1380c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_SHARED; 1381c20e08b0SJohannes Berg } 1382c20e08b0SJohannes Berg } 1383c20e08b0SJohannes Berg 1384c20e08b0SJohannes Berg /* 1385c20e08b0SJohannes Berg * Mark TXQ as ready, even though it hasn't been fully configured yet, 1386c20e08b0SJohannes Berg * to make sure no one else takes it. 1387c20e08b0SJohannes Berg * This will allow avoiding re-acquiring the lock at the end of the 1388c20e08b0SJohannes Berg * configuration. On error we'll mark it back as free. 1389c20e08b0SJohannes Berg */ 1390c20e08b0SJohannes Berg if (queue > 0 && !shared_queue) 1391c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 1392c20e08b0SJohannes Berg 1393c20e08b0SJohannes Berg /* This shouldn't happen - out of queues */ 1394c20e08b0SJohannes Berg if (WARN_ON(queue <= 0)) { 1395c20e08b0SJohannes Berg IWL_ERR(mvm, "No available queues for tid %d on sta_id %d\n", 1396c20e08b0SJohannes Berg tid, cfg.sta_id); 1397c20e08b0SJohannes Berg return queue; 1398c20e08b0SJohannes Berg } 1399c20e08b0SJohannes Berg 1400c20e08b0SJohannes Berg /* 1401c20e08b0SJohannes Berg * Actual en/disablement of aggregations is through the ADD_STA HCMD, 1402c20e08b0SJohannes Berg * but for configuring the SCD to send A-MPDUs we need to mark the queue 1403c20e08b0SJohannes Berg * as aggregatable. 1404c20e08b0SJohannes Berg * Mark all DATA queues as allowing to be aggregated at some point 1405c20e08b0SJohannes Berg */ 1406c20e08b0SJohannes Berg cfg.aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1407c20e08b0SJohannes Berg queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE); 1408c20e08b0SJohannes Berg 1409c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 1410c20e08b0SJohannes Berg "Allocating %squeue #%d to sta %d on tid %d\n", 1411c20e08b0SJohannes Berg shared_queue ? "shared " : "", queue, 1412c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid); 1413c20e08b0SJohannes Berg 1414c20e08b0SJohannes Berg if (shared_queue) { 1415c20e08b0SJohannes Berg /* Disable any open aggs on this queue */ 1416c20e08b0SJohannes Berg disable_agg_tids = iwl_mvm_get_queue_agg_tids(mvm, queue); 1417c20e08b0SJohannes Berg 1418c20e08b0SJohannes Berg if (disable_agg_tids) { 1419c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Disabling aggs on queue %d\n", 1420c20e08b0SJohannes Berg queue); 1421c20e08b0SJohannes Berg iwl_mvm_invalidate_sta_queue(mvm, queue, 1422c20e08b0SJohannes Berg disable_agg_tids, false); 1423c20e08b0SJohannes Berg } 1424c20e08b0SJohannes Berg } 1425c20e08b0SJohannes Berg 1426cfbc6c4cSSara Sharon inc_ssn = iwl_mvm_enable_txq(mvm, sta, queue, ssn, &cfg, wdg_timeout); 1427c20e08b0SJohannes Berg 1428c20e08b0SJohannes Berg /* 1429c20e08b0SJohannes Berg * Mark queue as shared in transport if shared 1430c20e08b0SJohannes Berg * Note this has to be done after queue enablement because enablement 1431c20e08b0SJohannes Berg * can also set this value, and there is no indication there to shared 1432c20e08b0SJohannes Berg * queues 1433c20e08b0SJohannes Berg */ 1434c20e08b0SJohannes Berg if (shared_queue) 1435c20e08b0SJohannes Berg iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 1436c20e08b0SJohannes Berg 1437c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1438c20e08b0SJohannes Berg /* 1439c20e08b0SJohannes Berg * This looks racy, but it is not. We have only one packet for 1440c20e08b0SJohannes Berg * this ra/tid in our Tx path since we stop the Qdisc when we 1441c20e08b0SJohannes Berg * need to allocate a new TFD queue. 1442c20e08b0SJohannes Berg */ 144335739348SSara Sharon if (inc_ssn) { 1444c20e08b0SJohannes Berg mvmsta->tid_data[tid].seq_number += 0x10; 144535739348SSara Sharon ssn = (ssn + 1) & IEEE80211_SCTL_SEQ; 144635739348SSara Sharon } 1447c20e08b0SJohannes Berg mvmsta->tid_data[tid].txq_id = queue; 1448c20e08b0SJohannes Berg mvmsta->tfd_queue_msk |= BIT(queue); 1449c20e08b0SJohannes Berg queue_state = mvmsta->tid_data[tid].state; 1450c20e08b0SJohannes Berg 1451c20e08b0SJohannes Berg if (mvmsta->reserved_queue == queue) 1452c20e08b0SJohannes Berg mvmsta->reserved_queue = IEEE80211_INVAL_HW_QUEUE; 1453c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1454c20e08b0SJohannes Berg 1455c20e08b0SJohannes Berg if (!shared_queue) { 1456c20e08b0SJohannes Berg ret = iwl_mvm_sta_send_to_fw(mvm, sta, true, STA_MODIFY_QUEUES); 1457c20e08b0SJohannes Berg if (ret) 1458c20e08b0SJohannes Berg goto out_err; 1459c20e08b0SJohannes Berg 1460c20e08b0SJohannes Berg /* If we need to re-enable aggregations... */ 1461c20e08b0SJohannes Berg if (queue_state == IWL_AGG_ON) { 1462c20e08b0SJohannes Berg ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 1463c20e08b0SJohannes Berg if (ret) 1464c20e08b0SJohannes Berg goto out_err; 1465c20e08b0SJohannes Berg } 1466c20e08b0SJohannes Berg } else { 1467c20e08b0SJohannes Berg /* Redirect queue, if needed */ 1468cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, ac, ssn, 1469cfbc6c4cSSara Sharon wdg_timeout, false, 1470cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 1471c20e08b0SJohannes Berg if (ret) 1472c20e08b0SJohannes Berg goto out_err; 1473c20e08b0SJohannes Berg } 1474c20e08b0SJohannes Berg 1475c20e08b0SJohannes Berg return 0; 1476c20e08b0SJohannes Berg 1477c20e08b0SJohannes Berg out_err: 1478c6ce1c74SJohannes Berg queue_tmp = queue; 1479c8ee33e1SGregory Greenman iwl_mvm_disable_txq(mvm, sta, mvmsta->deflink.sta_id, &queue_tmp, tid); 1480c20e08b0SJohannes Berg 1481c20e08b0SJohannes Berg return ret; 1482c20e08b0SJohannes Berg } 1483c20e08b0SJohannes Berg 148424afba76SLiad Kaufman void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk) 148524afba76SLiad Kaufman { 148624afba76SLiad Kaufman struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, 148724afba76SLiad Kaufman add_stream_wk); 148824afba76SLiad Kaufman 148924afba76SLiad Kaufman mutex_lock(&mvm->mutex); 149024afba76SLiad Kaufman 1491724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 14929f9af3d7SLiad Kaufman 1493cfbc6c4cSSara Sharon while (!list_empty(&mvm->add_stream_txqs)) { 1494cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq; 1495cfbc6c4cSSara Sharon struct ieee80211_txq *txq; 1496cfbc6c4cSSara Sharon u8 tid; 149724afba76SLiad Kaufman 1498cfbc6c4cSSara Sharon mvmtxq = list_first_entry(&mvm->add_stream_txqs, 1499cfbc6c4cSSara Sharon struct iwl_mvm_txq, list); 150024afba76SLiad Kaufman 1501cfbc6c4cSSara Sharon txq = container_of((void *)mvmtxq, struct ieee80211_txq, 1502cfbc6c4cSSara Sharon drv_priv); 1503cfbc6c4cSSara Sharon tid = txq->tid; 1504cfbc6c4cSSara Sharon if (tid == IEEE80211_NUM_TIDS) 1505cfbc6c4cSSara Sharon tid = IWL_MAX_TID_COUNT; 1506cfbc6c4cSSara Sharon 15073d1d87abSJohannes Berg /* 15083d1d87abSJohannes Berg * We can't really do much here, but if this fails we can't 15093d1d87abSJohannes Berg * transmit anyway - so just don't transmit the frame etc. 15103d1d87abSJohannes Berg * and let them back up ... we've tried our best to allocate 15113d1d87abSJohannes Berg * a queue in the function itself. 15123d1d87abSJohannes Berg */ 15133d1d87abSJohannes Berg if (iwl_mvm_sta_alloc_queue(mvm, txq->sta, txq->ac, tid)) { 15143d1d87abSJohannes Berg list_del_init(&mvmtxq->list); 15153d1d87abSJohannes Berg continue; 15163d1d87abSJohannes Berg } 15173d1d87abSJohannes Berg 1518cfbc6c4cSSara Sharon list_del_init(&mvmtxq->list); 1519f5ae2f93SJohannes Berg local_bh_disable(); 1520cfbc6c4cSSara Sharon iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1521f5ae2f93SJohannes Berg local_bh_enable(); 152224afba76SLiad Kaufman } 152324afba76SLiad Kaufman 152424afba76SLiad Kaufman mutex_unlock(&mvm->mutex); 152524afba76SLiad Kaufman } 152624afba76SLiad Kaufman 152724afba76SLiad Kaufman static int iwl_mvm_reserve_sta_stream(struct iwl_mvm *mvm, 1528d5216a28SLiad Kaufman struct ieee80211_sta *sta, 1529d5216a28SLiad Kaufman enum nl80211_iftype vif_type) 153024afba76SLiad Kaufman { 153124afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 153224afba76SLiad Kaufman int queue; 153324afba76SLiad Kaufman 1534396952eeSSara Sharon /* queue reserving is disabled on new TX path */ 1535396952eeSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1536396952eeSSara Sharon return 0; 1537396952eeSSara Sharon 1538724fe771SJohannes Berg /* run the general cleanup/unsharing of queues */ 1539724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 15409794c64fSLiad Kaufman 154124afba76SLiad Kaufman /* Make sure we have free resources for this STA */ 1542d5216a28SLiad Kaufman if (vif_type == NL80211_IFTYPE_STATION && !sta->tdls && 15431c14089eSJohannes Berg !mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].tid_bitmap && 1544cf961e16SLiad Kaufman (mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].status == 1545cf961e16SLiad Kaufman IWL_MVM_QUEUE_FREE)) 1546d5216a28SLiad Kaufman queue = IWL_MVM_DQA_BSS_CLIENT_QUEUE; 1547d5216a28SLiad Kaufman else 1548c8ee33e1SGregory Greenman queue = iwl_mvm_find_free_queue(mvm, mvmsta->deflink.sta_id, 15499794c64fSLiad Kaufman IWL_MVM_DQA_MIN_DATA_QUEUE, 155024afba76SLiad Kaufman IWL_MVM_DQA_MAX_DATA_QUEUE); 155124afba76SLiad Kaufman if (queue < 0) { 1552724fe771SJohannes Berg /* try again - this time kick out a queue if needed */ 1553c8ee33e1SGregory Greenman queue = iwl_mvm_inactivity_check(mvm, mvmsta->deflink.sta_id); 1554724fe771SJohannes Berg if (queue < 0) { 155524afba76SLiad Kaufman IWL_ERR(mvm, "No available queues for new station\n"); 155624afba76SLiad Kaufman return -ENOSPC; 1557724fe771SJohannes Berg } 155824afba76SLiad Kaufman } 1559cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_RESERVED; 156024afba76SLiad Kaufman 156124afba76SLiad Kaufman mvmsta->reserved_queue = queue; 156224afba76SLiad Kaufman 156324afba76SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Reserving data queue #%d for sta_id %d\n", 1564c8ee33e1SGregory Greenman queue, mvmsta->deflink.sta_id); 156524afba76SLiad Kaufman 156624afba76SLiad Kaufman return 0; 156724afba76SLiad Kaufman } 156824afba76SLiad Kaufman 15698d98ae6eSLiad Kaufman /* 15708d98ae6eSLiad Kaufman * In DQA mode, after a HW restart the queues should be allocated as before, in 15718d98ae6eSLiad Kaufman * order to avoid race conditions when there are shared queues. This function 15728d98ae6eSLiad Kaufman * does the re-mapping and queue allocation. 15738d98ae6eSLiad Kaufman * 15748d98ae6eSLiad Kaufman * Note that re-enabling aggregations isn't done in this function. 15758d98ae6eSLiad Kaufman */ 157687f7e243SMiri Korenblit void iwl_mvm_realloc_queues_after_restart(struct iwl_mvm *mvm, 1577cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 15788d98ae6eSLiad Kaufman { 1579cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1580cfbc6c4cSSara Sharon unsigned int wdg = 15818d98ae6eSLiad Kaufman iwl_mvm_get_wd_timeout(mvm, mvm_sta->vif, false, false); 15828d98ae6eSLiad Kaufman int i; 15838d98ae6eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 1584c8ee33e1SGregory Greenman .sta_id = mvm_sta->deflink.sta_id, 15858d98ae6eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 15868d98ae6eSLiad Kaufman }; 15878d98ae6eSLiad Kaufman 158803c902bfSJohannes Berg /* Make sure reserved queue is still marked as such (if allocated) */ 158903c902bfSJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) 15908d98ae6eSLiad Kaufman mvm->queue_info[mvm_sta->reserved_queue].status = 15918d98ae6eSLiad Kaufman IWL_MVM_QUEUE_RESERVED; 15928d98ae6eSLiad Kaufman 15938d98ae6eSLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 15948d98ae6eSLiad Kaufman struct iwl_mvm_tid_data *tid_data = &mvm_sta->tid_data[i]; 15958d98ae6eSLiad Kaufman int txq_id = tid_data->txq_id; 15968d98ae6eSLiad Kaufman int ac; 15978d98ae6eSLiad Kaufman 15986862fceeSSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 15998d98ae6eSLiad Kaufman continue; 16008d98ae6eSLiad Kaufman 16018d98ae6eSLiad Kaufman ac = tid_to_mac80211_ac[i]; 16028d98ae6eSLiad Kaufman 1603310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1604310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 1605310181ecSSara Sharon "Re-mapping sta %d tid %d\n", 1606c8ee33e1SGregory Greenman mvm_sta->deflink.sta_id, i); 160709369983SJohannes Berg txq_id = iwl_mvm_tvqm_enable_txq(mvm, sta, 1608c8ee33e1SGregory Greenman mvm_sta->deflink.sta_id, 1609cfbc6c4cSSara Sharon i, wdg); 161091cf5dedSJohannes Berg /* 161191cf5dedSJohannes Berg * on failures, just set it to IWL_MVM_INVALID_QUEUE 161291cf5dedSJohannes Berg * to try again later, we have no other good way of 161391cf5dedSJohannes Berg * failing here 161491cf5dedSJohannes Berg */ 161591cf5dedSJohannes Berg if (txq_id < 0) 161691cf5dedSJohannes Berg txq_id = IWL_MVM_INVALID_QUEUE; 1617310181ecSSara Sharon tid_data->txq_id = txq_id; 16185d39051aSLiad Kaufman 16195d39051aSLiad Kaufman /* 16205d39051aSLiad Kaufman * Since we don't set the seq number after reset, and HW 16215d39051aSLiad Kaufman * sets it now, FW reset will cause the seq num to start 16225d39051aSLiad Kaufman * at 0 again, so driver will need to update it 16235d39051aSLiad Kaufman * internally as well, so it keeps in sync with real val 16245d39051aSLiad Kaufman */ 16255d39051aSLiad Kaufman tid_data->seq_number = 0; 1626310181ecSSara Sharon } else { 1627310181ecSSara Sharon u16 seq = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 1628310181ecSSara Sharon 16298d98ae6eSLiad Kaufman cfg.tid = i; 1630cf6c6ea3SEmmanuel Grumbach cfg.fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac); 16318d98ae6eSLiad Kaufman cfg.aggregate = (txq_id >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1632310181ecSSara Sharon txq_id == 1633310181ecSSara Sharon IWL_MVM_DQA_BSS_CLIENT_QUEUE); 16348d98ae6eSLiad Kaufman 16358d98ae6eSLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 16368d98ae6eSLiad Kaufman "Re-mapping sta %d tid %d to queue %d\n", 1637c8ee33e1SGregory Greenman mvm_sta->deflink.sta_id, i, 1638c8ee33e1SGregory Greenman txq_id); 16398d98ae6eSLiad Kaufman 1640cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, txq_id, seq, &cfg, wdg); 16418d98ae6eSLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_READY; 16428d98ae6eSLiad Kaufman } 164334e10860SSara Sharon } 16448d98ae6eSLiad Kaufman } 16458d98ae6eSLiad Kaufman 1646732d06e9SShaul Triebitz static int iwl_mvm_add_int_sta_common(struct iwl_mvm *mvm, 1647732d06e9SShaul Triebitz struct iwl_mvm_int_sta *sta, 1648732d06e9SShaul Triebitz const u8 *addr, 1649732d06e9SShaul Triebitz u16 mac_id, u16 color) 1650732d06e9SShaul Triebitz { 1651732d06e9SShaul Triebitz struct iwl_mvm_add_sta_cmd cmd; 1652732d06e9SShaul Triebitz int ret; 16533f497de9SLuca Coelho u32 status = ADD_STA_SUCCESS; 1654732d06e9SShaul Triebitz 1655732d06e9SShaul Triebitz lockdep_assert_held(&mvm->mutex); 1656732d06e9SShaul Triebitz 1657732d06e9SShaul Triebitz memset(&cmd, 0, sizeof(cmd)); 1658732d06e9SShaul Triebitz cmd.sta_id = sta->sta_id; 16592c2c3647SNathan Errera 1660971cbe50SJohannes Berg if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) >= 12 && 16612c2c3647SNathan Errera sta->type == IWL_STA_AUX_ACTIVITY) 16622c2c3647SNathan Errera cmd.mac_id_n_color = cpu_to_le32(mac_id); 16632c2c3647SNathan Errera else 1664732d06e9SShaul Triebitz cmd.mac_id_n_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mac_id, 1665732d06e9SShaul Triebitz color)); 16662c2c3647SNathan Errera 1667732d06e9SShaul Triebitz if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 1668732d06e9SShaul Triebitz cmd.station_type = sta->type; 1669732d06e9SShaul Triebitz 1670732d06e9SShaul Triebitz if (!iwl_mvm_has_new_tx_api(mvm)) 1671732d06e9SShaul Triebitz cmd.tfd_queue_msk = cpu_to_le32(sta->tfd_queue_msk); 1672732d06e9SShaul Triebitz cmd.tid_disable_tx = cpu_to_le16(0xffff); 1673732d06e9SShaul Triebitz 1674732d06e9SShaul Triebitz if (addr) 1675732d06e9SShaul Triebitz memcpy(cmd.addr, addr, ETH_ALEN); 1676732d06e9SShaul Triebitz 1677732d06e9SShaul Triebitz ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1678732d06e9SShaul Triebitz iwl_mvm_add_sta_cmd_size(mvm), 1679732d06e9SShaul Triebitz &cmd, &status); 1680732d06e9SShaul Triebitz if (ret) 1681732d06e9SShaul Triebitz return ret; 1682732d06e9SShaul Triebitz 1683732d06e9SShaul Triebitz switch (status & IWL_ADD_STA_STATUS_MASK) { 1684732d06e9SShaul Triebitz case ADD_STA_SUCCESS: 1685732d06e9SShaul Triebitz IWL_DEBUG_INFO(mvm, "Internal station added.\n"); 1686732d06e9SShaul Triebitz return 0; 1687732d06e9SShaul Triebitz default: 1688732d06e9SShaul Triebitz ret = -EIO; 1689732d06e9SShaul Triebitz IWL_ERR(mvm, "Add internal station failed, status=0x%x\n", 1690732d06e9SShaul Triebitz status); 1691732d06e9SShaul Triebitz break; 1692732d06e9SShaul Triebitz } 1693732d06e9SShaul Triebitz return ret; 1694732d06e9SShaul Triebitz } 1695732d06e9SShaul Triebitz 169669aef848SMiri Korenblit /* Initialize driver data of a new sta */ 169787f7e243SMiri Korenblit int iwl_mvm_sta_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 169869aef848SMiri Korenblit struct ieee80211_sta *sta, int sta_id, u8 sta_type) 1699e705c121SKalle Valo { 1700e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1701e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1702a571f5f6SSara Sharon struct iwl_mvm_rxq_dup_data *dup_data; 170369aef848SMiri Korenblit int i, ret = 0; 1704e705c121SKalle Valo 1705e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1706e705c121SKalle Valo 1707e705c121SKalle Valo mvm_sta->mac_id_n_color = FW_CMD_ID_AND_COLOR(mvmvif->id, 1708e705c121SKalle Valo mvmvif->color); 1709e705c121SKalle Valo mvm_sta->vif = vif; 171057974a55SGregory Greenman 171157974a55SGregory Greenman /* for MLD sta_id(s) should be allocated for each link before calling 171257974a55SGregory Greenman * this function 171357974a55SGregory Greenman */ 171457974a55SGregory Greenman if (!mvm->mld_api_is_used) { 171557974a55SGregory Greenman if (WARN_ON(sta_id == IWL_MVM_INVALID_STA)) 171657974a55SGregory Greenman return -EINVAL; 171757974a55SGregory Greenman 171857974a55SGregory Greenman mvm_sta->deflink.sta_id = sta_id; 171957974a55SGregory Greenman rcu_assign_pointer(mvm_sta->link[0], &mvm_sta->deflink); 172057974a55SGregory Greenman 1721286ca8ebSLuca Coelho if (!mvm->trans->trans_cfg->gen2) 172259c2d94bSGregory Greenman mvm_sta->deflink.lq_sta.rs_drv.pers.max_agg_bufsize = 172357974a55SGregory Greenman LINK_QUAL_AGG_FRAME_LIMIT_DEF; 1724a58bb468SLiad Kaufman else 172559c2d94bSGregory Greenman mvm_sta->deflink.lq_sta.rs_drv.pers.max_agg_bufsize = 172657974a55SGregory Greenman LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF; 172757974a55SGregory Greenman } 172857974a55SGregory Greenman 1729e705c121SKalle Valo mvm_sta->tt_tx_protection = false; 173069aef848SMiri Korenblit mvm_sta->sta_type = sta_type; 1731e705c121SKalle Valo 1732e705c121SKalle Valo mvm_sta->tid_disable_agg = 0xffff; /* No aggs at first */ 1733e705c121SKalle Valo 173424afba76SLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 173524afba76SLiad Kaufman /* 173624afba76SLiad Kaufman * Mark all queues for this STA as unallocated and defer TX 173724afba76SLiad Kaufman * frames until the queue is allocated 173824afba76SLiad Kaufman */ 17396862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 1740e705c121SKalle Valo } 1741cfbc6c4cSSara Sharon 1742cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1743cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1744cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1745cfbc6c4cSSara Sharon 1746cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 1747cfbc6c4cSSara Sharon INIT_LIST_HEAD(&mvmtxq->list); 1748fba8248eSSara Sharon atomic_set(&mvmtxq->tx_request, 0); 1749cfbc6c4cSSara Sharon } 1750cfbc6c4cSSara Sharon 175169aef848SMiri Korenblit if (iwl_mvm_has_new_rx_api(mvm)) { 175292c4dca6SJohannes Berg int q; 175392c4dca6SJohannes Berg 1754a571f5f6SSara Sharon dup_data = kcalloc(mvm->trans->num_rx_queues, 175592c4dca6SJohannes Berg sizeof(*dup_data), GFP_KERNEL); 1756a571f5f6SSara Sharon if (!dup_data) 1757a571f5f6SSara Sharon return -ENOMEM; 175892c4dca6SJohannes Berg /* 175992c4dca6SJohannes Berg * Initialize all the last_seq values to 0xffff which can never 176092c4dca6SJohannes Berg * compare equal to the frame's seq_ctrl in the check in 176192c4dca6SJohannes Berg * iwl_mvm_is_dup() since the lower 4 bits are the fragment 176292c4dca6SJohannes Berg * number and fragmented packets don't reach that function. 176392c4dca6SJohannes Berg * 176492c4dca6SJohannes Berg * This thus allows receiving a packet with seqno 0 and the 176592c4dca6SJohannes Berg * retry bit set as the very first packet on a new TID. 176692c4dca6SJohannes Berg */ 176792c4dca6SJohannes Berg for (q = 0; q < mvm->trans->num_rx_queues; q++) 176892c4dca6SJohannes Berg memset(dup_data[q].last_seq, 0xff, 176992c4dca6SJohannes Berg sizeof(dup_data[q].last_seq)); 1770a571f5f6SSara Sharon mvm_sta->dup_data = dup_data; 1771a571f5f6SSara Sharon } 1772a571f5f6SSara Sharon 1773c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 1774d5216a28SLiad Kaufman ret = iwl_mvm_reserve_sta_stream(mvm, sta, 1775d5216a28SLiad Kaufman ieee80211_vif_type_p2p(vif)); 177624afba76SLiad Kaufman if (ret) 177769aef848SMiri Korenblit return ret; 177824afba76SLiad Kaufman } 177924afba76SLiad Kaufman 17809f66a397SGregory Greenman /* 17819f66a397SGregory Greenman * if rs is registered with mac80211, then "add station" will be handled 17829f66a397SGregory Greenman * via the corresponding ops, otherwise need to notify rate scaling here 17839f66a397SGregory Greenman */ 17844243edb4SEmmanuel Grumbach if (iwl_mvm_has_tlc_offload(mvm)) 17859f66a397SGregory Greenman iwl_mvm_rs_add_sta(mvm, mvm_sta); 17860f8084cdSMordechay Goodstein else 1787c8ee33e1SGregory Greenman spin_lock_init(&mvm_sta->deflink.lq_sta.rs_drv.pers.lock); 17889f66a397SGregory Greenman 17890dde2440SAvraham Stern iwl_mvm_toggle_tx_ant(mvm, &mvm_sta->tx_ant); 17900dde2440SAvraham Stern 179169aef848SMiri Korenblit return 0; 179269aef848SMiri Korenblit } 179369aef848SMiri Korenblit 179469aef848SMiri Korenblit int iwl_mvm_add_sta(struct iwl_mvm *mvm, 179569aef848SMiri Korenblit struct ieee80211_vif *vif, 179669aef848SMiri Korenblit struct ieee80211_sta *sta) 179769aef848SMiri Korenblit { 179869aef848SMiri Korenblit struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 179969aef848SMiri Korenblit struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 180069aef848SMiri Korenblit int ret, sta_id; 180169aef848SMiri Korenblit bool sta_update = false; 180269aef848SMiri Korenblit unsigned int sta_flags = 0; 180369aef848SMiri Korenblit 180469aef848SMiri Korenblit lockdep_assert_held(&mvm->mutex); 180569aef848SMiri Korenblit 180669aef848SMiri Korenblit if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 180769aef848SMiri Korenblit sta_id = iwl_mvm_find_free_sta_id(mvm, 180869aef848SMiri Korenblit ieee80211_vif_type_p2p(vif)); 180969aef848SMiri Korenblit else 1810c8ee33e1SGregory Greenman sta_id = mvm_sta->deflink.sta_id; 181169aef848SMiri Korenblit 181269aef848SMiri Korenblit if (sta_id == IWL_MVM_INVALID_STA) 181369aef848SMiri Korenblit return -ENOSPC; 181469aef848SMiri Korenblit 181569aef848SMiri Korenblit spin_lock_init(&mvm_sta->lock); 181669aef848SMiri Korenblit 181769aef848SMiri Korenblit /* if this is a HW restart re-alloc existing queues */ 181869aef848SMiri Korenblit if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 181969aef848SMiri Korenblit struct iwl_mvm_int_sta tmp_sta = { 182069aef848SMiri Korenblit .sta_id = sta_id, 182169aef848SMiri Korenblit .type = mvm_sta->sta_type, 182269aef848SMiri Korenblit }; 182369aef848SMiri Korenblit 182469aef848SMiri Korenblit /* First add an empty station since allocating 182569aef848SMiri Korenblit * a queue requires a valid station 182669aef848SMiri Korenblit */ 182769aef848SMiri Korenblit ret = iwl_mvm_add_int_sta_common(mvm, &tmp_sta, sta->addr, 182869aef848SMiri Korenblit mvmvif->id, mvmvif->color); 182969aef848SMiri Korenblit if (ret) 183069aef848SMiri Korenblit goto err; 183169aef848SMiri Korenblit 183269aef848SMiri Korenblit iwl_mvm_realloc_queues_after_restart(mvm, sta); 183369aef848SMiri Korenblit sta_update = true; 183469aef848SMiri Korenblit sta_flags = iwl_mvm_has_new_tx_api(mvm) ? 0 : STA_MODIFY_QUEUES; 183569aef848SMiri Korenblit goto update_fw; 183669aef848SMiri Korenblit } 183769aef848SMiri Korenblit 183869aef848SMiri Korenblit ret = iwl_mvm_sta_init(mvm, vif, sta, sta_id, 183969aef848SMiri Korenblit sta->tdls ? IWL_STA_TDLS_LINK : IWL_STA_LINK); 184069aef848SMiri Korenblit 18418d98ae6eSLiad Kaufman update_fw: 1842732d06e9SShaul Triebitz ret = iwl_mvm_sta_send_to_fw(mvm, sta, sta_update, sta_flags); 1843e705c121SKalle Valo if (ret) 1844e705c121SKalle Valo goto err; 1845e705c121SKalle Valo 1846e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) { 1847e705c121SKalle Valo if (!sta->tdls) { 1848650cadb7SGregory Greenman WARN_ON(mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA); 1849650cadb7SGregory Greenman mvmvif->deflink.ap_sta_id = sta_id; 1850e705c121SKalle Valo } else { 1851650cadb7SGregory Greenman WARN_ON(mvmvif->deflink.ap_sta_id == IWL_MVM_INVALID_STA); 1852e705c121SKalle Valo } 1853e705c121SKalle Valo } 1854e705c121SKalle Valo 1855e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], sta); 1856e705c121SKalle Valo 1857e705c121SKalle Valo return 0; 1858e705c121SKalle Valo 1859e705c121SKalle Valo err: 1860e705c121SKalle Valo return ret; 1861e705c121SKalle Valo } 1862e705c121SKalle Valo 1863e705c121SKalle Valo int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, 1864e705c121SKalle Valo bool drain) 1865e705c121SKalle Valo { 1866e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 1867e705c121SKalle Valo int ret; 1868e705c121SKalle Valo u32 status; 1869e705c121SKalle Valo 1870e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1871e705c121SKalle Valo 1872e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 1873c8ee33e1SGregory Greenman cmd.sta_id = mvmsta->deflink.sta_id; 1874e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 1875e705c121SKalle Valo cmd.station_flags = drain ? cpu_to_le32(STA_FLG_DRAIN_FLOW) : 0; 1876e705c121SKalle Valo cmd.station_flags_msk = cpu_to_le32(STA_FLG_DRAIN_FLOW); 1877e705c121SKalle Valo 1878e705c121SKalle Valo status = ADD_STA_SUCCESS; 1879854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1880854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 1881e705c121SKalle Valo &cmd, &status); 1882e705c121SKalle Valo if (ret) 1883e705c121SKalle Valo return ret; 1884e705c121SKalle Valo 1885837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 1886e705c121SKalle Valo case ADD_STA_SUCCESS: 1887e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "Frames for staid %d will drained in fw\n", 1888c8ee33e1SGregory Greenman mvmsta->deflink.sta_id); 1889e705c121SKalle Valo break; 1890e705c121SKalle Valo default: 1891e705c121SKalle Valo ret = -EIO; 1892e705c121SKalle Valo IWL_ERR(mvm, "Couldn't drain frames for staid %d\n", 1893c8ee33e1SGregory Greenman mvmsta->deflink.sta_id); 1894e705c121SKalle Valo break; 1895e705c121SKalle Valo } 1896e705c121SKalle Valo 1897e705c121SKalle Valo return ret; 1898e705c121SKalle Valo } 1899e705c121SKalle Valo 1900e705c121SKalle Valo /* 1901e705c121SKalle Valo * Remove a station from the FW table. Before sending the command to remove 1902e705c121SKalle Valo * the station validate that the station is indeed known to the driver (sanity 1903e705c121SKalle Valo * only). 1904e705c121SKalle Valo */ 1905e705c121SKalle Valo static int iwl_mvm_rm_sta_common(struct iwl_mvm *mvm, u8 sta_id) 1906e705c121SKalle Valo { 1907e705c121SKalle Valo struct ieee80211_sta *sta; 1908e705c121SKalle Valo struct iwl_mvm_rm_sta_cmd rm_sta_cmd = { 1909e705c121SKalle Valo .sta_id = sta_id, 1910e705c121SKalle Valo }; 1911e705c121SKalle Valo int ret; 1912e705c121SKalle Valo 1913e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 1914e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1915e705c121SKalle Valo 1916e705c121SKalle Valo /* Note: internal stations are marked as error values */ 1917e705c121SKalle Valo if (!sta) { 1918e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 1919e705c121SKalle Valo return -EINVAL; 1920e705c121SKalle Valo } 1921e705c121SKalle Valo 1922e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, REMOVE_STA, 0, 1923e705c121SKalle Valo sizeof(rm_sta_cmd), &rm_sta_cmd); 1924e705c121SKalle Valo if (ret) { 1925e705c121SKalle Valo IWL_ERR(mvm, "Failed to remove station. Id=%d\n", sta_id); 1926e705c121SKalle Valo return ret; 1927e705c121SKalle Valo } 1928e705c121SKalle Valo 1929e705c121SKalle Valo return 0; 1930e705c121SKalle Valo } 1931e705c121SKalle Valo 193224afba76SLiad Kaufman static void iwl_mvm_disable_sta_queues(struct iwl_mvm *mvm, 193324afba76SLiad Kaufman struct ieee80211_vif *vif, 1934cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 193524afba76SLiad Kaufman { 1936cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 193724afba76SLiad Kaufman int i; 193824afba76SLiad Kaufman 193924afba76SLiad Kaufman lockdep_assert_held(&mvm->mutex); 194024afba76SLiad Kaufman 194124afba76SLiad Kaufman for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 19426862fceeSSara Sharon if (mvm_sta->tid_data[i].txq_id == IWL_MVM_INVALID_QUEUE) 194324afba76SLiad Kaufman continue; 194424afba76SLiad Kaufman 1945c8ee33e1SGregory Greenman iwl_mvm_disable_txq(mvm, sta, mvm_sta->deflink.sta_id, 1946c5a976cfSJohannes Berg &mvm_sta->tid_data[i].txq_id, i); 19476862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 194824afba76SLiad Kaufman } 1949cfbc6c4cSSara Sharon 1950cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1951cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1952cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1953cfbc6c4cSSara Sharon 1954cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 195514a3aacfSJose Ignacio Tornos Martinez list_del_init(&mvmtxq->list); 1956cfbc6c4cSSara Sharon } 195724afba76SLiad Kaufman } 195824afba76SLiad Kaufman 1959d6d517b7SSara Sharon int iwl_mvm_wait_sta_queues_empty(struct iwl_mvm *mvm, 1960d6d517b7SSara Sharon struct iwl_mvm_sta *mvm_sta) 1961d6d517b7SSara Sharon { 1962bec9522aSSharon Dvir int i; 1963d6d517b7SSara Sharon 1964d6d517b7SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 1965d6d517b7SSara Sharon u16 txq_id; 1966bec9522aSSharon Dvir int ret; 1967d6d517b7SSara Sharon 1968d6d517b7SSara Sharon spin_lock_bh(&mvm_sta->lock); 1969d6d517b7SSara Sharon txq_id = mvm_sta->tid_data[i].txq_id; 1970d6d517b7SSara Sharon spin_unlock_bh(&mvm_sta->lock); 1971d6d517b7SSara Sharon 1972d6d517b7SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 1973d6d517b7SSara Sharon continue; 1974d6d517b7SSara Sharon 1975d6d517b7SSara Sharon ret = iwl_trans_wait_txq_empty(mvm->trans, txq_id); 1976d6d517b7SSara Sharon if (ret) 1977bec9522aSSharon Dvir return ret; 1978d6d517b7SSara Sharon } 1979d6d517b7SSara Sharon 1980bec9522aSSharon Dvir return 0; 1981d6d517b7SSara Sharon } 1982d6d517b7SSara Sharon 198387f7e243SMiri Korenblit /* Execute the common part for both MLD and non-MLD modes. 198487f7e243SMiri Korenblit * Returns if we're done with removing the station, either 198587f7e243SMiri Korenblit * with error or success 198687f7e243SMiri Korenblit */ 198787f7e243SMiri Korenblit bool iwl_mvm_sta_del(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 198857974a55SGregory Greenman struct ieee80211_sta *sta, 1989*a6ef8a88SJohannes Berg struct ieee80211_link_sta *link_sta, int *ret) 1990e705c121SKalle Valo { 1991e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1992*a6ef8a88SJohannes Berg struct iwl_mvm_vif_link_info *mvm_link = 1993*a6ef8a88SJohannes Berg mvmvif->link[link_sta->link_id]; 1994e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1995*a6ef8a88SJohannes Berg struct iwl_mvm_link_sta *mvm_link_sta; 1996*a6ef8a88SJohannes Berg u8 sta_id; 199769aef848SMiri Korenblit 199869aef848SMiri Korenblit lockdep_assert_held(&mvm->mutex); 199969aef848SMiri Korenblit 2000*a6ef8a88SJohannes Berg mvm_link_sta = 2001*a6ef8a88SJohannes Berg rcu_dereference_protected(mvm_sta->link[link_sta->link_id], 2002*a6ef8a88SJohannes Berg lockdep_is_held(&mvm->mutex)); 2003*a6ef8a88SJohannes Berg sta_id = mvm_link_sta->sta_id; 2004*a6ef8a88SJohannes Berg 200569aef848SMiri Korenblit /* If there is a TXQ still marked as reserved - free it */ 200669aef848SMiri Korenblit if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) { 200769aef848SMiri Korenblit u8 reserved_txq = mvm_sta->reserved_queue; 200869aef848SMiri Korenblit enum iwl_mvm_queue_status *status; 200969aef848SMiri Korenblit 201069aef848SMiri Korenblit /* 201169aef848SMiri Korenblit * If no traffic has gone through the reserved TXQ - it 201269aef848SMiri Korenblit * is still marked as IWL_MVM_QUEUE_RESERVED, and 201369aef848SMiri Korenblit * should be manually marked as free again 201469aef848SMiri Korenblit */ 201569aef848SMiri Korenblit status = &mvm->queue_info[reserved_txq].status; 201669aef848SMiri Korenblit if (WARN((*status != IWL_MVM_QUEUE_RESERVED) && 201769aef848SMiri Korenblit (*status != IWL_MVM_QUEUE_FREE), 201869aef848SMiri Korenblit "sta_id %d reserved txq %d status %d", 201969aef848SMiri Korenblit sta_id, reserved_txq, *status)) { 202069aef848SMiri Korenblit *ret = -EINVAL; 202169aef848SMiri Korenblit return true; 202269aef848SMiri Korenblit } 202369aef848SMiri Korenblit 202469aef848SMiri Korenblit *status = IWL_MVM_QUEUE_FREE; 202569aef848SMiri Korenblit } 202669aef848SMiri Korenblit 202757974a55SGregory Greenman if (vif->type == NL80211_IFTYPE_STATION) { 202869aef848SMiri Korenblit /* if associated - we can't remove the AP STA now */ 202969aef848SMiri Korenblit if (vif->cfg.assoc) 203069aef848SMiri Korenblit return true; 203169aef848SMiri Korenblit 203269aef848SMiri Korenblit /* first remove remaining keys */ 2033*a6ef8a88SJohannes Berg iwl_mvm_sec_key_remove_ap(mvm, vif, mvm_link, 0); 203469aef848SMiri Korenblit 203569aef848SMiri Korenblit /* unassoc - go ahead - remove the AP STA now */ 2036*a6ef8a88SJohannes Berg mvm_link->ap_sta_id = IWL_MVM_INVALID_STA; 203769aef848SMiri Korenblit } 203869aef848SMiri Korenblit 203969aef848SMiri Korenblit /* 204069aef848SMiri Korenblit * This shouldn't happen - the TDLS channel switch should be canceled 204169aef848SMiri Korenblit * before the STA is removed. 204269aef848SMiri Korenblit */ 204369aef848SMiri Korenblit if (WARN_ON_ONCE(mvm->tdls_cs.peer.sta_id == sta_id)) { 204469aef848SMiri Korenblit mvm->tdls_cs.peer.sta_id = IWL_MVM_INVALID_STA; 204569aef848SMiri Korenblit cancel_delayed_work(&mvm->tdls_cs.dwork); 204669aef848SMiri Korenblit } 204769aef848SMiri Korenblit 204869aef848SMiri Korenblit /* 204969aef848SMiri Korenblit * Make sure that the tx response code sees the station as -EBUSY and 205069aef848SMiri Korenblit * calls the drain worker. 205169aef848SMiri Korenblit */ 205269aef848SMiri Korenblit spin_lock_bh(&mvm_sta->lock); 205369aef848SMiri Korenblit spin_unlock_bh(&mvm_sta->lock); 205469aef848SMiri Korenblit 205569aef848SMiri Korenblit return false; 205669aef848SMiri Korenblit } 205769aef848SMiri Korenblit 205869aef848SMiri Korenblit int iwl_mvm_rm_sta(struct iwl_mvm *mvm, 205969aef848SMiri Korenblit struct ieee80211_vif *vif, 206069aef848SMiri Korenblit struct ieee80211_sta *sta) 206169aef848SMiri Korenblit { 206269aef848SMiri Korenblit struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2063e705c121SKalle Valo int ret; 2064e705c121SKalle Valo 2065e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2066e705c121SKalle Valo 2067a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm)) 2068a571f5f6SSara Sharon kfree(mvm_sta->dup_data); 2069a571f5f6SSara Sharon 2070e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, true); 2071e705c121SKalle Valo if (ret) 2072e705c121SKalle Valo return ret; 2073c8f54701SJohannes Berg 2074e705c121SKalle Valo /* flush its queues here since we are freeing mvm_sta */ 2075f9084775SNathan Errera ret = iwl_mvm_flush_sta(mvm, mvm_sta, false); 2076e705c121SKalle Valo if (ret) 2077e705c121SKalle Valo return ret; 2078d6d517b7SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 2079d6d517b7SSara Sharon ret = iwl_mvm_wait_sta_queues_empty(mvm, mvm_sta); 2080d6d517b7SSara Sharon } else { 2081d6d517b7SSara Sharon u32 q_mask = mvm_sta->tfd_queue_msk; 2082d6d517b7SSara Sharon 2083a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 2084d6d517b7SSara Sharon q_mask); 2085d6d517b7SSara Sharon } 2086e705c121SKalle Valo if (ret) 2087e705c121SKalle Valo return ret; 2088c8f54701SJohannes Berg 2089e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, false); 2090e705c121SKalle Valo 2091cfbc6c4cSSara Sharon iwl_mvm_disable_sta_queues(mvm, vif, sta); 209256214749SLiad Kaufman 2093*a6ef8a88SJohannes Berg if (iwl_mvm_sta_del(mvm, vif, sta, &sta->deflink, &ret)) 2094e705c121SKalle Valo return ret; 2095e705c121SKalle Valo 2096c8ee33e1SGregory Greenman ret = iwl_mvm_rm_sta_common(mvm, mvm_sta->deflink.sta_id); 2097c8ee33e1SGregory Greenman RCU_INIT_POINTER(mvm->fw_id_to_mac_id[mvm_sta->deflink.sta_id], NULL); 2098e705c121SKalle Valo 2099e705c121SKalle Valo return ret; 2100e705c121SKalle Valo } 2101e705c121SKalle Valo 2102e705c121SKalle Valo int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm, 2103e705c121SKalle Valo struct ieee80211_vif *vif, 2104e705c121SKalle Valo u8 sta_id) 2105e705c121SKalle Valo { 2106e705c121SKalle Valo int ret = iwl_mvm_rm_sta_common(mvm, sta_id); 2107e705c121SKalle Valo 2108e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2109e705c121SKalle Valo 2110e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], NULL); 2111e705c121SKalle Valo return ret; 2112e705c121SKalle Valo } 2113e705c121SKalle Valo 21140e39eb03SChaya Rachel Ivgi int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, 2115e705c121SKalle Valo struct iwl_mvm_int_sta *sta, 2116ced19f26SSara Sharon u32 qmask, enum nl80211_iftype iftype, 2117006c152aSMiri Korenblit u8 type) 2118e705c121SKalle Valo { 2119df65c8d1SAvraham Stern if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 2120df65c8d1SAvraham Stern sta->sta_id == IWL_MVM_INVALID_STA) { 2121e705c121SKalle Valo sta->sta_id = iwl_mvm_find_free_sta_id(mvm, iftype); 21220ae98812SSara Sharon if (WARN_ON_ONCE(sta->sta_id == IWL_MVM_INVALID_STA)) 2123e705c121SKalle Valo return -ENOSPC; 2124e705c121SKalle Valo } 2125e705c121SKalle Valo 2126e705c121SKalle Valo sta->tfd_queue_msk = qmask; 2127ced19f26SSara Sharon sta->type = type; 2128e705c121SKalle Valo 2129e705c121SKalle Valo /* put a non-NULL value so iterating over the stations won't stop */ 2130e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta->sta_id], ERR_PTR(-EINVAL)); 2131e705c121SKalle Valo return 0; 2132e705c121SKalle Valo } 2133e705c121SKalle Valo 213426d6c16bSSara Sharon void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta) 2135e705c121SKalle Valo { 2136e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta->sta_id], NULL); 2137e705c121SKalle Valo memset(sta, 0, sizeof(struct iwl_mvm_int_sta)); 21380ae98812SSara Sharon sta->sta_id = IWL_MVM_INVALID_STA; 2139e705c121SKalle Valo } 2140e705c121SKalle Valo 214191cf5dedSJohannes Berg static void iwl_mvm_enable_aux_snif_queue(struct iwl_mvm *mvm, u16 queue, 2142b13f43a4SEmmanuel Grumbach u8 sta_id, u8 fifo) 2143e705c121SKalle Valo { 21449617040eSEmmanuel Grumbach unsigned int wdg_timeout = 21459617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout; 214628d0793eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 2147b13f43a4SEmmanuel Grumbach .fifo = fifo, 2148b13f43a4SEmmanuel Grumbach .sta_id = sta_id, 214928d0793eSLiad Kaufman .tid = IWL_MAX_TID_COUNT, 215028d0793eSLiad Kaufman .aggregate = false, 215128d0793eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 215228d0793eSLiad Kaufman }; 215328d0793eSLiad Kaufman 215491cf5dedSJohannes Berg WARN_ON(iwl_mvm_has_new_tx_api(mvm)); 215591cf5dedSJohannes Berg 215691cf5dedSJohannes Berg iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 215728d0793eSLiad Kaufman } 215891cf5dedSJohannes Berg 215991cf5dedSJohannes Berg static int iwl_mvm_enable_aux_snif_queue_tvqm(struct iwl_mvm *mvm, u8 sta_id) 216091cf5dedSJohannes Berg { 21619617040eSEmmanuel Grumbach unsigned int wdg_timeout = 21629617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout; 216391cf5dedSJohannes Berg 216491cf5dedSJohannes Berg WARN_ON(!iwl_mvm_has_new_tx_api(mvm)); 216591cf5dedSJohannes Berg 216609369983SJohannes Berg return iwl_mvm_tvqm_enable_txq(mvm, NULL, sta_id, IWL_MAX_TID_COUNT, 216791cf5dedSJohannes Berg wdg_timeout); 216891cf5dedSJohannes Berg } 216991cf5dedSJohannes Berg 217091cf5dedSJohannes Berg static int iwl_mvm_add_int_sta_with_queue(struct iwl_mvm *mvm, int macidx, 2171be82ecd3SAvraham Stern int maccolor, u8 *addr, 217291cf5dedSJohannes Berg struct iwl_mvm_int_sta *sta, 217391cf5dedSJohannes Berg u16 *queue, int fifo) 217491cf5dedSJohannes Berg { 217591cf5dedSJohannes Berg int ret; 217691cf5dedSJohannes Berg 217791cf5dedSJohannes Berg /* Map queue to fifo - needs to happen before adding station */ 217891cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) 217991cf5dedSJohannes Berg iwl_mvm_enable_aux_snif_queue(mvm, *queue, sta->sta_id, fifo); 218091cf5dedSJohannes Berg 2181be82ecd3SAvraham Stern ret = iwl_mvm_add_int_sta_common(mvm, sta, addr, macidx, maccolor); 218291cf5dedSJohannes Berg if (ret) { 218391cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) 2184c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, sta->sta_id, queue, 218564ff7eb0SJohannes Berg IWL_MAX_TID_COUNT); 218691cf5dedSJohannes Berg return ret; 218791cf5dedSJohannes Berg } 218891cf5dedSJohannes Berg 218991cf5dedSJohannes Berg /* 219091cf5dedSJohannes Berg * For 22000 firmware and on we cannot add queue to a station unknown 219191cf5dedSJohannes Berg * to firmware so enable queue here - after the station was added 219291cf5dedSJohannes Berg */ 219391cf5dedSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) { 219491cf5dedSJohannes Berg int txq; 219591cf5dedSJohannes Berg 219691cf5dedSJohannes Berg txq = iwl_mvm_enable_aux_snif_queue_tvqm(mvm, sta->sta_id); 219791cf5dedSJohannes Berg if (txq < 0) { 219891cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, sta->sta_id); 219991cf5dedSJohannes Berg return txq; 220091cf5dedSJohannes Berg } 220191cf5dedSJohannes Berg 220291cf5dedSJohannes Berg *queue = txq; 220391cf5dedSJohannes Berg } 220491cf5dedSJohannes Berg 220591cf5dedSJohannes Berg return 0; 2206c5a719eeSSara Sharon } 2207c5a719eeSSara Sharon 22082c2c3647SNathan Errera int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm, u32 lmac_id) 2209c5a719eeSSara Sharon { 2210c5a719eeSSara Sharon int ret; 2211c5a719eeSSara Sharon 2212c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2213c5a719eeSSara Sharon 2214c5a719eeSSara Sharon /* Allocate aux station and assign to it the aux queue */ 2215c5a719eeSSara Sharon ret = iwl_mvm_allocate_int_sta(mvm, &mvm->aux_sta, BIT(mvm->aux_queue), 2216ced19f26SSara Sharon NL80211_IFTYPE_UNSPECIFIED, 2217ced19f26SSara Sharon IWL_STA_AUX_ACTIVITY); 2218c5a719eeSSara Sharon if (ret) 2219c5a719eeSSara Sharon return ret; 2220c5a719eeSSara Sharon 22212c2c3647SNathan Errera /* 22222c2c3647SNathan Errera * In CDB NICs we need to specify which lmac to use for aux activity 22232c2c3647SNathan Errera * using the mac_id argument place to send lmac_id to the function 22242c2c3647SNathan Errera */ 22252c2c3647SNathan Errera ret = iwl_mvm_add_int_sta_with_queue(mvm, lmac_id, 0, NULL, 222691cf5dedSJohannes Berg &mvm->aux_sta, &mvm->aux_queue, 2227b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_MCAST); 2228c5a719eeSSara Sharon if (ret) { 2229e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2230e705c121SKalle Valo return ret; 2231e705c121SKalle Valo } 2232e705c121SKalle Valo 2233c5a719eeSSara Sharon return 0; 2234c5a719eeSSara Sharon } 2235c5a719eeSSara Sharon 22360e39eb03SChaya Rachel Ivgi int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 22370e39eb03SChaya Rachel Ivgi { 22380e39eb03SChaya Rachel Ivgi struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 22390e39eb03SChaya Rachel Ivgi 22400e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 2241b13f43a4SEmmanuel Grumbach 224291cf5dedSJohannes Berg return iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id, mvmvif->color, 2243be82ecd3SAvraham Stern NULL, &mvm->snif_sta, 2244be82ecd3SAvraham Stern &mvm->snif_queue, 2245b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_BE); 22460e39eb03SChaya Rachel Ivgi } 22470e39eb03SChaya Rachel Ivgi 22480e39eb03SChaya Rachel Ivgi int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 22490e39eb03SChaya Rachel Ivgi { 22500e39eb03SChaya Rachel Ivgi int ret; 22510e39eb03SChaya Rachel Ivgi 22520e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 22530e39eb03SChaya Rachel Ivgi 2254e223e42aSGregory Greenman if (WARN_ON_ONCE(mvm->snif_sta.sta_id == IWL_MVM_INVALID_STA)) 2255e223e42aSGregory Greenman return -EINVAL; 2256e223e42aSGregory Greenman 2257c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, mvm->snif_sta.sta_id, 2258c5a976cfSJohannes Berg &mvm->snif_queue, IWL_MAX_TID_COUNT); 22590e39eb03SChaya Rachel Ivgi ret = iwl_mvm_rm_sta_common(mvm, mvm->snif_sta.sta_id); 22600e39eb03SChaya Rachel Ivgi if (ret) 22610e39eb03SChaya Rachel Ivgi IWL_WARN(mvm, "Failed sending remove station\n"); 22620e39eb03SChaya Rachel Ivgi 22630e39eb03SChaya Rachel Ivgi return ret; 22640e39eb03SChaya Rachel Ivgi } 22650e39eb03SChaya Rachel Ivgi 2266f327236dSSharon int iwl_mvm_rm_aux_sta(struct iwl_mvm *mvm) 2267f327236dSSharon { 2268f327236dSSharon int ret; 2269f327236dSSharon 2270f327236dSSharon lockdep_assert_held(&mvm->mutex); 2271f327236dSSharon 2272e223e42aSGregory Greenman if (WARN_ON_ONCE(mvm->aux_sta.sta_id == IWL_MVM_INVALID_STA)) 2273e223e42aSGregory Greenman return -EINVAL; 2274e223e42aSGregory Greenman 2275c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, mvm->aux_sta.sta_id, 2276c5a976cfSJohannes Berg &mvm->aux_queue, IWL_MAX_TID_COUNT); 2277f327236dSSharon ret = iwl_mvm_rm_sta_common(mvm, mvm->aux_sta.sta_id); 2278f327236dSSharon if (ret) 2279f327236dSSharon IWL_WARN(mvm, "Failed sending remove station\n"); 2280f327236dSSharon iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2281f327236dSSharon 2282f327236dSSharon return ret; 2283f327236dSSharon } 2284f327236dSSharon 22850e39eb03SChaya Rachel Ivgi void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm) 22860e39eb03SChaya Rachel Ivgi { 22870e39eb03SChaya Rachel Ivgi iwl_mvm_dealloc_int_sta(mvm, &mvm->snif_sta); 22880e39eb03SChaya Rachel Ivgi } 22890e39eb03SChaya Rachel Ivgi 2290e705c121SKalle Valo /* 2291e705c121SKalle Valo * Send the add station command for the vif's broadcast station. 2292e705c121SKalle Valo * Assumes that the station was already allocated. 2293e705c121SKalle Valo * 2294e705c121SKalle Valo * @mvm: the mvm component 2295e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2296e705c121SKalle Valo * @bsta: the broadcast station to add. 2297e705c121SKalle Valo */ 2298e705c121SKalle Valo int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2299e705c121SKalle Valo { 2300e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2301650cadb7SGregory Greenman struct iwl_mvm_int_sta *bsta = &mvmvif->deflink.bcast_sta; 2302e705c121SKalle Valo static const u8 _baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; 2303e705c121SKalle Valo const u8 *baddr = _baddr; 23047daa7624SJohannes Berg int queue; 2305df88c08dSLiad Kaufman int ret; 2306c5a719eeSSara Sharon unsigned int wdg_timeout = 2307c5a719eeSSara Sharon iwl_mvm_get_wd_timeout(mvm, vif, false, false); 2308de24f638SLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 2309de24f638SLiad Kaufman .fifo = IWL_MVM_TX_FIFO_VO, 2310650cadb7SGregory Greenman .sta_id = mvmvif->deflink.bcast_sta.sta_id, 2311de24f638SLiad Kaufman .tid = IWL_MAX_TID_COUNT, 2312de24f638SLiad Kaufman .aggregate = false, 2313de24f638SLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 2314de24f638SLiad Kaufman }; 2315de24f638SLiad Kaufman 2316c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2317c5a719eeSSara Sharon 2318c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 23194d339989SLiad Kaufman if (vif->type == NL80211_IFTYPE_AP || 2320f8510d67SNathan Chancellor vif->type == NL80211_IFTYPE_ADHOC) { 232149f71713SSara Sharon queue = mvm->probe_queue; 2322f8510d67SNathan Chancellor } else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 232349f71713SSara Sharon queue = mvm->p2p_dev_queue; 2324f8510d67SNathan Chancellor } else { 2325f8510d67SNathan Chancellor WARN(1, "Missing required TXQ for adding bcast STA\n"); 2326de24f638SLiad Kaufman return -EINVAL; 2327f8510d67SNathan Chancellor } 2328de24f638SLiad Kaufman 2329df88c08dSLiad Kaufman bsta->tfd_queue_msk |= BIT(queue); 2330c5a719eeSSara Sharon 2331cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 2332de24f638SLiad Kaufman } 2333de24f638SLiad Kaufman 2334e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_ADHOC) 2335e705c121SKalle Valo baddr = vif->bss_conf.bssid; 2336e705c121SKalle Valo 23370ae98812SSara Sharon if (WARN_ON_ONCE(bsta->sta_id == IWL_MVM_INVALID_STA)) 2338e705c121SKalle Valo return -ENOSPC; 2339e705c121SKalle Valo 2340df88c08dSLiad Kaufman ret = iwl_mvm_add_int_sta_common(mvm, bsta, baddr, 2341e705c121SKalle Valo mvmvif->id, mvmvif->color); 2342df88c08dSLiad Kaufman if (ret) 2343df88c08dSLiad Kaufman return ret; 2344df88c08dSLiad Kaufman 2345df88c08dSLiad Kaufman /* 23462f7a3863SLuca Coelho * For 22000 firmware and on we cannot add queue to a station unknown 2347c5a719eeSSara Sharon * to firmware so enable queue here - after the station was added 2348df88c08dSLiad Kaufman */ 2349310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 235009369983SJohannes Berg queue = iwl_mvm_tvqm_enable_txq(mvm, NULL, bsta->sta_id, 2351310181ecSSara Sharon IWL_MAX_TID_COUNT, 2352c5a719eeSSara Sharon wdg_timeout); 235391cf5dedSJohannes Berg if (queue < 0) { 235491cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, bsta->sta_id); 235591cf5dedSJohannes Berg return queue; 235691cf5dedSJohannes Berg } 23577daa7624SJohannes Berg 23587b758a11SLuca Coelho if (vif->type == NL80211_IFTYPE_AP || 2359de50140bSJohannes Berg vif->type == NL80211_IFTYPE_ADHOC) { 2360de50140bSJohannes Berg /* for queue management */ 2361310181ecSSara Sharon mvm->probe_queue = queue; 2362de50140bSJohannes Berg /* for use in TX */ 2363de50140bSJohannes Berg mvmvif->deflink.mgmt_queue = queue; 2364de50140bSJohannes Berg } else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 2365310181ecSSara Sharon mvm->p2p_dev_queue = queue; 2366310181ecSSara Sharon } 2367de50140bSJohannes Berg } else if (vif->type == NL80211_IFTYPE_AP || 2368de50140bSJohannes Berg vif->type == NL80211_IFTYPE_ADHOC) { 2369de50140bSJohannes Berg /* set it for use in TX */ 2370de50140bSJohannes Berg mvmvif->deflink.mgmt_queue = mvm->probe_queue; 2371de50140bSJohannes Berg } 2372df88c08dSLiad Kaufman 2373df88c08dSLiad Kaufman return 0; 2374df88c08dSLiad Kaufman } 2375df88c08dSLiad Kaufman 237660efeca1SMiri Korenblit void iwl_mvm_free_bcast_sta_queues(struct iwl_mvm *mvm, 2377df88c08dSLiad Kaufman struct ieee80211_vif *vif) 2378df88c08dSLiad Kaufman { 2379df88c08dSLiad Kaufman struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2380c6ce1c74SJohannes Berg u16 *queueptr, queue; 2381df88c08dSLiad Kaufman 2382df88c08dSLiad Kaufman lockdep_assert_held(&mvm->mutex); 2383df88c08dSLiad Kaufman 2384650cadb7SGregory Greenman iwl_mvm_flush_sta(mvm, &mvmvif->deflink.bcast_sta, true); 2385d49394a1SSara Sharon 2386d167e81aSMordechai Goodstein switch (vif->type) { 2387d167e81aSMordechai Goodstein case NL80211_IFTYPE_AP: 2388d167e81aSMordechai Goodstein case NL80211_IFTYPE_ADHOC: 2389c6ce1c74SJohannes Berg queueptr = &mvm->probe_queue; 2390d167e81aSMordechai Goodstein break; 2391d167e81aSMordechai Goodstein case NL80211_IFTYPE_P2P_DEVICE: 2392c6ce1c74SJohannes Berg queueptr = &mvm->p2p_dev_queue; 2393d167e81aSMordechai Goodstein break; 2394d167e81aSMordechai Goodstein default: 2395d167e81aSMordechai Goodstein WARN(1, "Can't free bcast queue on vif type %d\n", 2396d167e81aSMordechai Goodstein vif->type); 2397d167e81aSMordechai Goodstein return; 2398df88c08dSLiad Kaufman } 2399df88c08dSLiad Kaufman 2400c6ce1c74SJohannes Berg queue = *queueptr; 2401650cadb7SGregory Greenman iwl_mvm_disable_txq(mvm, NULL, mvmvif->deflink.bcast_sta.sta_id, 2402c5a976cfSJohannes Berg queueptr, IWL_MAX_TID_COUNT); 2403de50140bSJohannes Berg 2404de50140bSJohannes Berg if (vif->type == NL80211_IFTYPE_AP || vif->type == NL80211_IFTYPE_ADHOC) 2405de50140bSJohannes Berg mvmvif->deflink.mgmt_queue = mvm->probe_queue; 2406de50140bSJohannes Berg 2407d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) 2408d167e81aSMordechai Goodstein return; 2409d167e81aSMordechai Goodstein 2410650cadb7SGregory Greenman WARN_ON(!(mvmvif->deflink.bcast_sta.tfd_queue_msk & BIT(queue))); 2411650cadb7SGregory Greenman mvmvif->deflink.bcast_sta.tfd_queue_msk &= ~BIT(queue); 2412e705c121SKalle Valo } 2413e705c121SKalle Valo 2414e705c121SKalle Valo /* Send the FW a request to remove the station from it's internal data 2415e705c121SKalle Valo * structures, but DO NOT remove the entry from the local data structures. */ 2416e705c121SKalle Valo int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2417e705c121SKalle Valo { 2418e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2419e705c121SKalle Valo int ret; 2420e705c121SKalle Valo 2421e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2422e705c121SKalle Valo 2423df88c08dSLiad Kaufman iwl_mvm_free_bcast_sta_queues(mvm, vif); 2424df88c08dSLiad Kaufman 2425650cadb7SGregory Greenman ret = iwl_mvm_rm_sta_common(mvm, mvmvif->deflink.bcast_sta.sta_id); 2426e705c121SKalle Valo if (ret) 2427e705c121SKalle Valo IWL_WARN(mvm, "Failed sending remove station\n"); 2428e705c121SKalle Valo return ret; 2429e705c121SKalle Valo } 2430e705c121SKalle Valo 2431e705c121SKalle Valo int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2432e705c121SKalle Valo { 2433e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2434e705c121SKalle Valo 2435e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2436e705c121SKalle Valo 2437650cadb7SGregory Greenman return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.bcast_sta, 0, 2438ced19f26SSara Sharon ieee80211_vif_type_p2p(vif), 2439ced19f26SSara Sharon IWL_STA_GENERAL_PURPOSE); 2440e705c121SKalle Valo } 2441e705c121SKalle Valo 2442e705c121SKalle Valo /* Allocate a new station entry for the broadcast station to the given vif, 2443e705c121SKalle Valo * and send it to the FW. 2444e705c121SKalle Valo * Note that each P2P mac should have its own broadcast station. 2445e705c121SKalle Valo * 2446e705c121SKalle Valo * @mvm: the mvm component 2447e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2448e705c121SKalle Valo * @bsta: the broadcast station to add. */ 2449d197358bSLuca Coelho int iwl_mvm_add_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2450e705c121SKalle Valo { 2451e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2452650cadb7SGregory Greenman struct iwl_mvm_int_sta *bsta = &mvmvif->deflink.bcast_sta; 2453e705c121SKalle Valo int ret; 2454e705c121SKalle Valo 2455e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2456e705c121SKalle Valo 2457e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 2458e705c121SKalle Valo if (ret) 2459e705c121SKalle Valo return ret; 2460e705c121SKalle Valo 2461e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2462e705c121SKalle Valo 2463e705c121SKalle Valo if (ret) 2464e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, bsta); 2465e705c121SKalle Valo 2466e705c121SKalle Valo return ret; 2467e705c121SKalle Valo } 2468e705c121SKalle Valo 2469e705c121SKalle Valo void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2470e705c121SKalle Valo { 2471e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2472e705c121SKalle Valo 2473650cadb7SGregory Greenman iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.bcast_sta); 2474e705c121SKalle Valo } 2475e705c121SKalle Valo 2476e705c121SKalle Valo /* 2477e705c121SKalle Valo * Send the FW a request to remove the station from it's internal data 2478e705c121SKalle Valo * structures, and in addition remove it from the local data structure. 2479e705c121SKalle Valo */ 2480d197358bSLuca Coelho int iwl_mvm_rm_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2481e705c121SKalle Valo { 2482e705c121SKalle Valo int ret; 2483e705c121SKalle Valo 2484e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2485e705c121SKalle Valo 2486e705c121SKalle Valo ret = iwl_mvm_send_rm_bcast_sta(mvm, vif); 2487e705c121SKalle Valo 2488e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif); 2489e705c121SKalle Valo 2490e705c121SKalle Valo return ret; 2491e705c121SKalle Valo } 2492e705c121SKalle Valo 249326d6c16bSSara Sharon /* 249426d6c16bSSara Sharon * Allocate a new station entry for the multicast station to the given vif, 249526d6c16bSSara Sharon * and send it to the FW. 249626d6c16bSSara Sharon * Note that each AP/GO mac should have its own multicast station. 249726d6c16bSSara Sharon * 249826d6c16bSSara Sharon * @mvm: the mvm component 249926d6c16bSSara Sharon * @vif: the interface to which the multicast station is added 250026d6c16bSSara Sharon */ 250126d6c16bSSara Sharon int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 250226d6c16bSSara Sharon { 250326d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2504650cadb7SGregory Greenman struct iwl_mvm_int_sta *msta = &mvmvif->deflink.mcast_sta; 250526d6c16bSSara Sharon static const u8 _maddr[] = {0x03, 0x00, 0x00, 0x00, 0x00, 0x00}; 250626d6c16bSSara Sharon const u8 *maddr = _maddr; 250726d6c16bSSara Sharon struct iwl_trans_txq_scd_cfg cfg = { 2508192a7e1fSJohannes Berg .fifo = vif->type == NL80211_IFTYPE_AP ? 2509192a7e1fSJohannes Berg IWL_MVM_TX_FIFO_MCAST : IWL_MVM_TX_FIFO_BE, 251026d6c16bSSara Sharon .sta_id = msta->sta_id, 25116508de03SIlan Peer .tid = 0, 251226d6c16bSSara Sharon .aggregate = false, 251326d6c16bSSara Sharon .frame_limit = IWL_FRAME_LIMIT, 251426d6c16bSSara Sharon }; 251526d6c16bSSara Sharon unsigned int timeout = iwl_mvm_get_wd_timeout(mvm, vif, false, false); 251626d6c16bSSara Sharon int ret; 251726d6c16bSSara Sharon 251826d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 251926d6c16bSSara Sharon 2520ee48b722SLiad Kaufman if (WARN_ON(vif->type != NL80211_IFTYPE_AP && 2521ee48b722SLiad Kaufman vif->type != NL80211_IFTYPE_ADHOC)) 252226d6c16bSSara Sharon return -ENOTSUPP; 252326d6c16bSSara Sharon 2524ced19f26SSara Sharon /* 2525fc07bd8cSSara Sharon * In IBSS, ieee80211_check_queues() sets the cab_queue to be 2526fc07bd8cSSara Sharon * invalid, so make sure we use the queue we want. 2527fc07bd8cSSara Sharon * Note that this is done here as we want to avoid making DQA 2528fc07bd8cSSara Sharon * changes in mac80211 layer. 2529fc07bd8cSSara Sharon */ 2530cfbc6c4cSSara Sharon if (vif->type == NL80211_IFTYPE_ADHOC) 2531650cadb7SGregory Greenman mvmvif->deflink.cab_queue = IWL_MVM_DQA_GCAST_QUEUE; 2532fc07bd8cSSara Sharon 2533fc07bd8cSSara Sharon /* 2534ced19f26SSara Sharon * While in previous FWs we had to exclude cab queue from TFD queue 2535ced19f26SSara Sharon * mask, now it is needed as any other queue. 2536ced19f26SSara Sharon */ 2537ced19f26SSara Sharon if (!iwl_mvm_has_new_tx_api(mvm) && 2538ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2539650cadb7SGregory Greenman iwl_mvm_enable_txq(mvm, NULL, mvmvif->deflink.cab_queue, 0, 2540650cadb7SGregory Greenman &cfg, 2541cfbc6c4cSSara Sharon timeout); 2542650cadb7SGregory Greenman msta->tfd_queue_msk |= BIT(mvmvif->deflink.cab_queue); 2543ced19f26SSara Sharon } 254426d6c16bSSara Sharon ret = iwl_mvm_add_int_sta_common(mvm, msta, maddr, 254526d6c16bSSara Sharon mvmvif->id, mvmvif->color); 254691cf5dedSJohannes Berg if (ret) 254791cf5dedSJohannes Berg goto err; 254826d6c16bSSara Sharon 254926d6c16bSSara Sharon /* 255026d6c16bSSara Sharon * Enable cab queue after the ADD_STA command is sent. 25512f7a3863SLuca Coelho * This is needed for 22000 firmware which won't accept SCD_QUEUE_CFG 2552ced19f26SSara Sharon * command with unknown station id, and for FW that doesn't support 2553ced19f26SSara Sharon * station API since the cab queue is not included in the 2554ced19f26SSara Sharon * tfd_queue_mask. 255526d6c16bSSara Sharon */ 2556310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 255709369983SJohannes Berg int queue = iwl_mvm_tvqm_enable_txq(mvm, NULL, msta->sta_id, 255809369983SJohannes Berg 0, timeout); 255991cf5dedSJohannes Berg if (queue < 0) { 256091cf5dedSJohannes Berg ret = queue; 256191cf5dedSJohannes Berg goto err; 256291cf5dedSJohannes Berg } 2563650cadb7SGregory Greenman mvmvif->deflink.cab_queue = queue; 2564ced19f26SSara Sharon } else if (!fw_has_api(&mvm->fw->ucode_capa, 2565fc07bd8cSSara Sharon IWL_UCODE_TLV_API_STA_TYPE)) 2566650cadb7SGregory Greenman iwl_mvm_enable_txq(mvm, NULL, mvmvif->deflink.cab_queue, 0, 2567650cadb7SGregory Greenman &cfg, 2568cfbc6c4cSSara Sharon timeout); 256926d6c16bSSara Sharon 257026d6c16bSSara Sharon return 0; 257191cf5dedSJohannes Berg err: 257291cf5dedSJohannes Berg iwl_mvm_dealloc_int_sta(mvm, msta); 257391cf5dedSJohannes Berg return ret; 257426d6c16bSSara Sharon } 257526d6c16bSSara Sharon 257628916a16SEmmanuel Grumbach static int __iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, u8 sta_id, 257728916a16SEmmanuel Grumbach struct ieee80211_key_conf *keyconf, 257828916a16SEmmanuel Grumbach bool mcast) 257928916a16SEmmanuel Grumbach { 258028916a16SEmmanuel Grumbach union { 258128916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 258228916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd cmd; 258328916a16SEmmanuel Grumbach } u = {}; 258428916a16SEmmanuel Grumbach bool new_api = fw_has_api(&mvm->fw->ucode_capa, 258528916a16SEmmanuel Grumbach IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 258628916a16SEmmanuel Grumbach __le16 key_flags; 258728916a16SEmmanuel Grumbach int ret, size; 258828916a16SEmmanuel Grumbach u32 status; 258928916a16SEmmanuel Grumbach 259028916a16SEmmanuel Grumbach /* This is a valid situation for GTK removal */ 259128916a16SEmmanuel Grumbach if (sta_id == IWL_MVM_INVALID_STA) 259228916a16SEmmanuel Grumbach return 0; 259328916a16SEmmanuel Grumbach 259428916a16SEmmanuel Grumbach key_flags = cpu_to_le16((keyconf->keyidx << STA_KEY_FLG_KEYID_POS) & 259528916a16SEmmanuel Grumbach STA_KEY_FLG_KEYID_MSK); 259628916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_FLG_NO_ENC | STA_KEY_FLG_WEP_KEY_MAP); 259728916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_NOT_VALID); 259828916a16SEmmanuel Grumbach 259928916a16SEmmanuel Grumbach if (mcast) 260028916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 260128916a16SEmmanuel Grumbach 260228916a16SEmmanuel Grumbach /* 260328916a16SEmmanuel Grumbach * The fields assigned here are in the same location at the start 260428916a16SEmmanuel Grumbach * of the command, so we can do this union trick. 260528916a16SEmmanuel Grumbach */ 260628916a16SEmmanuel Grumbach u.cmd.common.key_flags = key_flags; 260728916a16SEmmanuel Grumbach u.cmd.common.key_offset = keyconf->hw_key_idx; 260828916a16SEmmanuel Grumbach u.cmd.common.sta_id = sta_id; 260928916a16SEmmanuel Grumbach 261028916a16SEmmanuel Grumbach size = new_api ? sizeof(u.cmd) : sizeof(u.cmd_v1); 261128916a16SEmmanuel Grumbach 261228916a16SEmmanuel Grumbach status = ADD_STA_SUCCESS; 261328916a16SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, &u.cmd, 261428916a16SEmmanuel Grumbach &status); 261528916a16SEmmanuel Grumbach 261628916a16SEmmanuel Grumbach switch (status) { 261728916a16SEmmanuel Grumbach case ADD_STA_SUCCESS: 261828916a16SEmmanuel Grumbach IWL_DEBUG_WEP(mvm, "MODIFY_STA: remove sta key passed\n"); 261928916a16SEmmanuel Grumbach break; 262028916a16SEmmanuel Grumbach default: 262128916a16SEmmanuel Grumbach ret = -EIO; 262228916a16SEmmanuel Grumbach IWL_ERR(mvm, "MODIFY_STA: remove sta key failed\n"); 262328916a16SEmmanuel Grumbach break; 262428916a16SEmmanuel Grumbach } 262528916a16SEmmanuel Grumbach 262628916a16SEmmanuel Grumbach return ret; 262728916a16SEmmanuel Grumbach } 262828916a16SEmmanuel Grumbach 262926d6c16bSSara Sharon /* 263026d6c16bSSara Sharon * Send the FW a request to remove the station from it's internal data 263126d6c16bSSara Sharon * structures, and in addition remove it from the local data structure. 263226d6c16bSSara Sharon */ 263326d6c16bSSara Sharon int iwl_mvm_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 263426d6c16bSSara Sharon { 263526d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 263626d6c16bSSara Sharon int ret; 263726d6c16bSSara Sharon 263826d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 263926d6c16bSSara Sharon 2640650cadb7SGregory Greenman iwl_mvm_flush_sta(mvm, &mvmvif->deflink.mcast_sta, true); 2641d49394a1SSara Sharon 2642650cadb7SGregory Greenman iwl_mvm_disable_txq(mvm, NULL, mvmvif->deflink.mcast_sta.sta_id, 2643650cadb7SGregory Greenman &mvmvif->deflink.cab_queue, 0); 264426d6c16bSSara Sharon 2645650cadb7SGregory Greenman ret = iwl_mvm_rm_sta_common(mvm, mvmvif->deflink.mcast_sta.sta_id); 264626d6c16bSSara Sharon if (ret) 264726d6c16bSSara Sharon IWL_WARN(mvm, "Failed sending remove station\n"); 264826d6c16bSSara Sharon 264926d6c16bSSara Sharon return ret; 265026d6c16bSSara Sharon } 265126d6c16bSSara Sharon 2652b915c101SSara Sharon static void iwl_mvm_sync_rxq_del_ba(struct iwl_mvm *mvm, u8 baid) 265310b2b201SSara Sharon { 26545e1688ceSJohannes Berg struct iwl_mvm_delba_data notif = { 26555e1688ceSJohannes Berg .baid = baid, 2656b915c101SSara Sharon }; 26575e1688ceSJohannes Berg 26585e1688ceSJohannes Berg iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_NOTIF_DEL_BA, true, 26595e1688ceSJohannes Berg ¬if, sizeof(notif)); 266010b2b201SSara Sharon }; 266110b2b201SSara Sharon 2662b915c101SSara Sharon static void iwl_mvm_free_reorder(struct iwl_mvm *mvm, 2663b915c101SSara Sharon struct iwl_mvm_baid_data *data) 2664b915c101SSara Sharon { 2665b915c101SSara Sharon int i; 2666b915c101SSara Sharon 2667b915c101SSara Sharon iwl_mvm_sync_rxq_del_ba(mvm, data->baid); 2668b915c101SSara Sharon 2669b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2670b915c101SSara Sharon int j; 2671b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2672b915c101SSara Sharon &data->reorder_buf[i]; 2673dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2674dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2675b915c101SSara Sharon 26760690405fSSara Sharon spin_lock_bh(&reorder_buf->lock); 26770690405fSSara Sharon if (likely(!reorder_buf->num_stored)) { 26780690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 2679b915c101SSara Sharon continue; 26800690405fSSara Sharon } 2681b915c101SSara Sharon 2682b915c101SSara Sharon /* 2683b915c101SSara Sharon * This shouldn't happen in regular DELBA since the internal 2684b915c101SSara Sharon * delBA notification should trigger a release of all frames in 2685b915c101SSara Sharon * the reorder buffer. 2686b915c101SSara Sharon */ 2687b915c101SSara Sharon WARN_ON(1); 2688b915c101SSara Sharon 2689b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2690dfdddd92SJohannes Berg __skb_queue_purge(&entries[j].e.frames); 26910690405fSSara Sharon /* 26920690405fSSara Sharon * Prevent timer re-arm. This prevents a very far fetched case 26930690405fSSara Sharon * where we timed out on the notification. There may be prior 26940690405fSSara Sharon * RX frames pending in the RX queue before the notification 26950690405fSSara Sharon * that might get processed between now and the actual deletion 26960690405fSSara Sharon * and we would re-arm the timer although we are deleting the 26970690405fSSara Sharon * reorder buffer. 26980690405fSSara Sharon */ 26990690405fSSara Sharon reorder_buf->removed = true; 27000690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 27010690405fSSara Sharon del_timer_sync(&reorder_buf->reorder_timer); 2702b915c101SSara Sharon } 2703b915c101SSara Sharon } 2704b915c101SSara Sharon 2705b915c101SSara Sharon static void iwl_mvm_init_reorder_buffer(struct iwl_mvm *mvm, 2706b915c101SSara Sharon struct iwl_mvm_baid_data *data, 2707514c3069SLuca Coelho u16 ssn, u16 buf_size) 2708b915c101SSara Sharon { 2709b915c101SSara Sharon int i; 2710b915c101SSara Sharon 2711b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2712b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2713b915c101SSara Sharon &data->reorder_buf[i]; 2714dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2715dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2716b915c101SSara Sharon int j; 2717b915c101SSara Sharon 2718b915c101SSara Sharon reorder_buf->num_stored = 0; 2719b915c101SSara Sharon reorder_buf->head_sn = ssn; 2720b915c101SSara Sharon reorder_buf->buf_size = buf_size; 27210690405fSSara Sharon /* rx reorder timer */ 27228cef5344SKees Cook timer_setup(&reorder_buf->reorder_timer, 27238cef5344SKees Cook iwl_mvm_reorder_timer_expired, 0); 27240690405fSSara Sharon spin_lock_init(&reorder_buf->lock); 27250690405fSSara Sharon reorder_buf->mvm = mvm; 2726b915c101SSara Sharon reorder_buf->queue = i; 27275d43eab6SSara Sharon reorder_buf->valid = false; 2728b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2729dfdddd92SJohannes Berg __skb_queue_head_init(&entries[j].e.frames); 2730b915c101SSara Sharon } 273110b2b201SSara Sharon } 273210b2b201SSara Sharon 273397f70c56SJohannes Berg static int iwl_mvm_fw_baid_op_sta(struct iwl_mvm *mvm, 273497f70c56SJohannes Berg struct iwl_mvm_sta *mvm_sta, 273597f70c56SJohannes Berg bool start, int tid, u16 ssn, 273697f70c56SJohannes Berg u16 buf_size) 27370f3a4e48SJohannes Berg { 27380f3a4e48SJohannes Berg struct iwl_mvm_add_sta_cmd cmd = { 27390f3a4e48SJohannes Berg .mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color), 2740c8ee33e1SGregory Greenman .sta_id = mvm_sta->deflink.sta_id, 27410f3a4e48SJohannes Berg .add_modify = STA_MODE_MODIFY, 27420f3a4e48SJohannes Berg }; 27430f3a4e48SJohannes Berg u32 status; 27440f3a4e48SJohannes Berg int ret; 27450f3a4e48SJohannes Berg 27460f3a4e48SJohannes Berg if (start) { 27470f3a4e48SJohannes Berg cmd.add_immediate_ba_tid = tid; 27480f3a4e48SJohannes Berg cmd.add_immediate_ba_ssn = cpu_to_le16(ssn); 27490f3a4e48SJohannes Berg cmd.rx_ba_window = cpu_to_le16(buf_size); 27500f3a4e48SJohannes Berg cmd.modify_mask = STA_MODIFY_ADD_BA_TID; 27510f3a4e48SJohannes Berg } else { 27520f3a4e48SJohannes Berg cmd.remove_immediate_ba_tid = tid; 27530f3a4e48SJohannes Berg cmd.modify_mask = STA_MODIFY_REMOVE_BA_TID; 27540f3a4e48SJohannes Berg } 27550f3a4e48SJohannes Berg 27560f3a4e48SJohannes Berg status = ADD_STA_SUCCESS; 27570f3a4e48SJohannes Berg ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 27580f3a4e48SJohannes Berg iwl_mvm_add_sta_cmd_size(mvm), 27590f3a4e48SJohannes Berg &cmd, &status); 27600f3a4e48SJohannes Berg if (ret) 27610f3a4e48SJohannes Berg return ret; 27620f3a4e48SJohannes Berg 27630f3a4e48SJohannes Berg switch (status & IWL_ADD_STA_STATUS_MASK) { 27640f3a4e48SJohannes Berg case ADD_STA_SUCCESS: 27650f3a4e48SJohannes Berg IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n", 27660f3a4e48SJohannes Berg start ? "start" : "stopp"); 27670f3a4e48SJohannes Berg if (WARN_ON(start && iwl_mvm_has_new_rx_api(mvm) && 27680f3a4e48SJohannes Berg !(status & IWL_ADD_STA_BAID_VALID_MASK))) 27690f3a4e48SJohannes Berg return -EINVAL; 27700f3a4e48SJohannes Berg return u32_get_bits(status, IWL_ADD_STA_BAID_MASK); 27710f3a4e48SJohannes Berg case ADD_STA_IMMEDIATE_BA_FAILURE: 27720f3a4e48SJohannes Berg IWL_WARN(mvm, "RX BA Session refused by fw\n"); 27730f3a4e48SJohannes Berg return -ENOSPC; 27740f3a4e48SJohannes Berg default: 27750f3a4e48SJohannes Berg IWL_ERR(mvm, "RX BA Session failed %sing, status 0x%x\n", 27760f3a4e48SJohannes Berg start ? "start" : "stopp", status); 27770f3a4e48SJohannes Berg return -EIO; 27780f3a4e48SJohannes Berg } 27790f3a4e48SJohannes Berg } 27800f3a4e48SJohannes Berg 278197f70c56SJohannes Berg static int iwl_mvm_fw_baid_op_cmd(struct iwl_mvm *mvm, 278297f70c56SJohannes Berg struct iwl_mvm_sta *mvm_sta, 278397f70c56SJohannes Berg bool start, int tid, u16 ssn, 278497f70c56SJohannes Berg u16 buf_size, int baid) 278597f70c56SJohannes Berg { 278697f70c56SJohannes Berg struct iwl_rx_baid_cfg_cmd cmd = { 278797f70c56SJohannes Berg .action = start ? cpu_to_le32(IWL_RX_BAID_ACTION_ADD) : 278897f70c56SJohannes Berg cpu_to_le32(IWL_RX_BAID_ACTION_REMOVE), 278997f70c56SJohannes Berg }; 279097f70c56SJohannes Berg u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, RX_BAID_ALLOCATION_CONFIG_CMD); 279197f70c56SJohannes Berg int ret; 279297f70c56SJohannes Berg 279397f70c56SJohannes Berg BUILD_BUG_ON(sizeof(struct iwl_rx_baid_cfg_resp) != sizeof(baid)); 279497f70c56SJohannes Berg 279597f70c56SJohannes Berg if (start) { 2796c8ee33e1SGregory Greenman cmd.alloc.sta_id_mask = 2797c8ee33e1SGregory Greenman cpu_to_le32(BIT(mvm_sta->deflink.sta_id)); 279897f70c56SJohannes Berg cmd.alloc.tid = tid; 279997f70c56SJohannes Berg cmd.alloc.ssn = cpu_to_le16(ssn); 280097f70c56SJohannes Berg cmd.alloc.win_size = cpu_to_le16(buf_size); 280197f70c56SJohannes Berg baid = -EIO; 280226de4c8bSJohannes Berg } else if (iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1) == 1) { 280326de4c8bSJohannes Berg cmd.remove_v1.baid = cpu_to_le32(baid); 280426de4c8bSJohannes Berg BUILD_BUG_ON(sizeof(cmd.remove_v1) > sizeof(cmd.remove)); 280597f70c56SJohannes Berg } else { 2806c8ee33e1SGregory Greenman cmd.remove.sta_id_mask = 2807c8ee33e1SGregory Greenman cpu_to_le32(BIT(mvm_sta->deflink.sta_id)); 280826de4c8bSJohannes Berg cmd.remove.tid = cpu_to_le32(tid); 280997f70c56SJohannes Berg } 281097f70c56SJohannes Berg 281197f70c56SJohannes Berg ret = iwl_mvm_send_cmd_pdu_status(mvm, cmd_id, sizeof(cmd), 281297f70c56SJohannes Berg &cmd, &baid); 281397f70c56SJohannes Berg if (ret) 281497f70c56SJohannes Berg return ret; 281597f70c56SJohannes Berg 281697f70c56SJohannes Berg if (!start) { 281797f70c56SJohannes Berg /* ignore firmware baid on remove */ 281897f70c56SJohannes Berg baid = 0; 281997f70c56SJohannes Berg } 282097f70c56SJohannes Berg 282197f70c56SJohannes Berg IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n", 282297f70c56SJohannes Berg start ? "start" : "stopp"); 282397f70c56SJohannes Berg 282497f70c56SJohannes Berg if (baid < 0 || baid >= ARRAY_SIZE(mvm->baid_map)) 282597f70c56SJohannes Berg return -EINVAL; 282697f70c56SJohannes Berg 282797f70c56SJohannes Berg return baid; 282897f70c56SJohannes Berg } 282997f70c56SJohannes Berg 283097f70c56SJohannes Berg static int iwl_mvm_fw_baid_op(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvm_sta, 283197f70c56SJohannes Berg bool start, int tid, u16 ssn, u16 buf_size, 283297f70c56SJohannes Berg int baid) 283397f70c56SJohannes Berg { 283497f70c56SJohannes Berg if (fw_has_capa(&mvm->fw->ucode_capa, 283597f70c56SJohannes Berg IWL_UCODE_TLV_CAPA_BAID_ML_SUPPORT)) 283697f70c56SJohannes Berg return iwl_mvm_fw_baid_op_cmd(mvm, mvm_sta, start, 283797f70c56SJohannes Berg tid, ssn, buf_size, baid); 283897f70c56SJohannes Berg 283997f70c56SJohannes Berg return iwl_mvm_fw_baid_op_sta(mvm, mvm_sta, start, 284097f70c56SJohannes Berg tid, ssn, buf_size); 284197f70c56SJohannes Berg } 284297f70c56SJohannes Berg 2843e705c121SKalle Valo int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2844514c3069SLuca Coelho int tid, u16 ssn, bool start, u16 buf_size, u16 timeout) 2845e705c121SKalle Valo { 2846e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 284710b2b201SSara Sharon struct iwl_mvm_baid_data *baid_data = NULL; 28480f3a4e48SJohannes Berg int ret, baid; 2849ded5ded3SEmmanuel Grumbach u32 max_ba_id_sessions = iwl_mvm_has_new_tx_api(mvm) ? IWL_MAX_BAID : 2850ded5ded3SEmmanuel Grumbach IWL_MAX_BAID_OLD; 2851e705c121SKalle Valo 2852e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2853e705c121SKalle Valo 2854ded5ded3SEmmanuel Grumbach if (start && mvm->rx_ba_sessions >= max_ba_id_sessions) { 2855e705c121SKalle Valo IWL_WARN(mvm, "Not enough RX BA SESSIONS\n"); 2856e705c121SKalle Valo return -ENOSPC; 2857e705c121SKalle Valo } 2858e705c121SKalle Valo 285910b2b201SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && start) { 2860dfdddd92SJohannes Berg u16 reorder_buf_size = buf_size * sizeof(baid_data->entries[0]); 2861dfdddd92SJohannes Berg 2862dfdddd92SJohannes Berg /* sparse doesn't like the __align() so don't check */ 2863dfdddd92SJohannes Berg #ifndef __CHECKER__ 2864dfdddd92SJohannes Berg /* 2865dfdddd92SJohannes Berg * The division below will be OK if either the cache line size 2866dfdddd92SJohannes Berg * can be divided by the entry size (ALIGN will round up) or if 2867dfdddd92SJohannes Berg * if the entry size can be divided by the cache line size, in 2868dfdddd92SJohannes Berg * which case the ALIGN() will do nothing. 2869dfdddd92SJohannes Berg */ 2870dfdddd92SJohannes Berg BUILD_BUG_ON(SMP_CACHE_BYTES % sizeof(baid_data->entries[0]) && 2871dfdddd92SJohannes Berg sizeof(baid_data->entries[0]) % SMP_CACHE_BYTES); 2872dfdddd92SJohannes Berg #endif 2873dfdddd92SJohannes Berg 2874dfdddd92SJohannes Berg /* 2875dfdddd92SJohannes Berg * Upward align the reorder buffer size to fill an entire cache 2876dfdddd92SJohannes Berg * line for each queue, to avoid sharing cache lines between 2877dfdddd92SJohannes Berg * different queues. 2878dfdddd92SJohannes Berg */ 2879dfdddd92SJohannes Berg reorder_buf_size = ALIGN(reorder_buf_size, SMP_CACHE_BYTES); 2880dfdddd92SJohannes Berg 288110b2b201SSara Sharon /* 288210b2b201SSara Sharon * Allocate here so if allocation fails we can bail out early 288310b2b201SSara Sharon * before starting the BA session in the firmware 288410b2b201SSara Sharon */ 2885b915c101SSara Sharon baid_data = kzalloc(sizeof(*baid_data) + 2886b915c101SSara Sharon mvm->trans->num_rx_queues * 2887dfdddd92SJohannes Berg reorder_buf_size, 2888b915c101SSara Sharon GFP_KERNEL); 288910b2b201SSara Sharon if (!baid_data) 289010b2b201SSara Sharon return -ENOMEM; 2891dfdddd92SJohannes Berg 2892dfdddd92SJohannes Berg /* 2893dfdddd92SJohannes Berg * This division is why we need the above BUILD_BUG_ON(), 2894dfdddd92SJohannes Berg * if that doesn't hold then this will not be right. 2895dfdddd92SJohannes Berg */ 2896dfdddd92SJohannes Berg baid_data->entries_per_queue = 2897dfdddd92SJohannes Berg reorder_buf_size / sizeof(baid_data->entries[0]); 289810b2b201SSara Sharon } 289910b2b201SSara Sharon 290097f70c56SJohannes Berg if (iwl_mvm_has_new_rx_api(mvm) && !start) { 290197f70c56SJohannes Berg baid = mvm_sta->tid_to_baid[tid]; 290297f70c56SJohannes Berg } else { 290397f70c56SJohannes Berg /* we don't really need it in this case */ 290497f70c56SJohannes Berg baid = -1; 290597f70c56SJohannes Berg } 290697f70c56SJohannes Berg 29073538c809SLuca Coelho /* Don't send command to remove (start=0) BAID during restart */ 29083538c809SLuca Coelho if (start || !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 290997f70c56SJohannes Berg baid = iwl_mvm_fw_baid_op(mvm, mvm_sta, start, tid, ssn, buf_size, 291097f70c56SJohannes Berg baid); 29113538c809SLuca Coelho 29120f3a4e48SJohannes Berg if (baid < 0) { 29130f3a4e48SJohannes Berg ret = baid; 291410b2b201SSara Sharon goto out_free; 2915e705c121SKalle Valo } 2916e705c121SKalle Valo 291710b2b201SSara Sharon if (start) { 2918e705c121SKalle Valo mvm->rx_ba_sessions++; 291910b2b201SSara Sharon 292010b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 292110b2b201SSara Sharon return 0; 292210b2b201SSara Sharon 292310b2b201SSara Sharon baid_data->baid = baid; 292410b2b201SSara Sharon baid_data->timeout = timeout; 292510b2b201SSara Sharon baid_data->last_rx = jiffies; 29268cef5344SKees Cook baid_data->rcu_ptr = &mvm->baid_map[baid]; 29278cef5344SKees Cook timer_setup(&baid_data->session_timer, 29288cef5344SKees Cook iwl_mvm_rx_agg_session_expired, 0); 292910b2b201SSara Sharon baid_data->mvm = mvm; 293010b2b201SSara Sharon baid_data->tid = tid; 2931c8ee33e1SGregory Greenman baid_data->sta_id = mvm_sta->deflink.sta_id; 293210b2b201SSara Sharon 293310b2b201SSara Sharon mvm_sta->tid_to_baid[tid] = baid; 293410b2b201SSara Sharon if (timeout) 293510b2b201SSara Sharon mod_timer(&baid_data->session_timer, 293610b2b201SSara Sharon TU_TO_EXP_TIME(timeout * 2)); 293710b2b201SSara Sharon 29383f1c4c58SSara Sharon iwl_mvm_init_reorder_buffer(mvm, baid_data, ssn, buf_size); 293910b2b201SSara Sharon /* 294010b2b201SSara Sharon * protect the BA data with RCU to cover a case where our 294110b2b201SSara Sharon * internal RX sync mechanism will timeout (not that it's 294210b2b201SSara Sharon * supposed to happen) and we will free the session data while 294310b2b201SSara Sharon * RX is being processed in parallel 294410b2b201SSara Sharon */ 294535263a03SSara Sharon IWL_DEBUG_HT(mvm, "Sta %d(%d) is assigned to BAID %d\n", 2946c8ee33e1SGregory Greenman mvm_sta->deflink.sta_id, tid, baid); 294710b2b201SSara Sharon WARN_ON(rcu_access_pointer(mvm->baid_map[baid])); 294810b2b201SSara Sharon rcu_assign_pointer(mvm->baid_map[baid], baid_data); 294960dec523SSara Sharon } else { 29500f3a4e48SJohannes Berg baid = mvm_sta->tid_to_baid[tid]; 295110b2b201SSara Sharon 295260dec523SSara Sharon if (mvm->rx_ba_sessions > 0) 2953e705c121SKalle Valo /* check that restart flow didn't zero the counter */ 2954e705c121SKalle Valo mvm->rx_ba_sessions--; 295510b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 295610b2b201SSara Sharon return 0; 2957e705c121SKalle Valo 295810b2b201SSara Sharon if (WARN_ON(baid == IWL_RX_REORDER_DATA_INVALID_BAID)) 295910b2b201SSara Sharon return -EINVAL; 296010b2b201SSara Sharon 296110b2b201SSara Sharon baid_data = rcu_access_pointer(mvm->baid_map[baid]); 296210b2b201SSara Sharon if (WARN_ON(!baid_data)) 296310b2b201SSara Sharon return -EINVAL; 296410b2b201SSara Sharon 296510b2b201SSara Sharon /* synchronize all rx queues so we can safely delete */ 2966b915c101SSara Sharon iwl_mvm_free_reorder(mvm, baid_data); 2967292a089dSSteven Rostedt (Google) timer_shutdown_sync(&baid_data->session_timer); 296810b2b201SSara Sharon RCU_INIT_POINTER(mvm->baid_map[baid], NULL); 296910b2b201SSara Sharon kfree_rcu(baid_data, rcu_head); 297035263a03SSara Sharon IWL_DEBUG_HT(mvm, "BAID %d is free\n", baid); 29712438d430SJohannes Berg 29722438d430SJohannes Berg /* 29732438d430SJohannes Berg * After we've deleted it, do another queue sync 29742438d430SJohannes Berg * so if an IWL_MVM_RXQ_NSSN_SYNC was concurrently 29752438d430SJohannes Berg * running it won't find a new session in the old 29762438d430SJohannes Berg * BAID. It can find the NULL pointer for the BAID, 29772438d430SJohannes Berg * but we must not have it find a different session. 29782438d430SJohannes Berg */ 29792438d430SJohannes Berg iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, 29802438d430SJohannes Berg true, NULL, 0); 298110b2b201SSara Sharon } 298210b2b201SSara Sharon return 0; 298310b2b201SSara Sharon 298410b2b201SSara Sharon out_free: 298510b2b201SSara Sharon kfree(baid_data); 2986e705c121SKalle Valo return ret; 2987e705c121SKalle Valo } 2988e705c121SKalle Valo 29899794c64fSLiad Kaufman int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2990e705c121SKalle Valo int tid, u8 queue, bool start) 2991e705c121SKalle Valo { 2992e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2993e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 2994e705c121SKalle Valo int ret; 2995e705c121SKalle Valo u32 status; 2996e705c121SKalle Valo 2997e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2998e705c121SKalle Valo 2999e705c121SKalle Valo if (start) { 3000e705c121SKalle Valo mvm_sta->tfd_queue_msk |= BIT(queue); 3001e705c121SKalle Valo mvm_sta->tid_disable_agg &= ~BIT(tid); 3002e705c121SKalle Valo } else { 3003cf961e16SLiad Kaufman /* In DQA-mode the queue isn't removed on agg termination */ 3004e705c121SKalle Valo mvm_sta->tid_disable_agg |= BIT(tid); 3005e705c121SKalle Valo } 3006e705c121SKalle Valo 3007e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 3008c8ee33e1SGregory Greenman cmd.sta_id = mvm_sta->deflink.sta_id; 3009e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 3010bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) 3011bb49701bSSara Sharon cmd.modify_mask = STA_MODIFY_QUEUES; 3012bb49701bSSara Sharon cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 3013e705c121SKalle Valo cmd.tfd_queue_msk = cpu_to_le32(mvm_sta->tfd_queue_msk); 3014e705c121SKalle Valo cmd.tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg); 3015e705c121SKalle Valo 3016e705c121SKalle Valo status = ADD_STA_SUCCESS; 3017854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 3018854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 3019e705c121SKalle Valo &cmd, &status); 3020e705c121SKalle Valo if (ret) 3021e705c121SKalle Valo return ret; 3022e705c121SKalle Valo 3023837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 3024e705c121SKalle Valo case ADD_STA_SUCCESS: 3025e705c121SKalle Valo break; 3026e705c121SKalle Valo default: 3027e705c121SKalle Valo ret = -EIO; 3028e705c121SKalle Valo IWL_ERR(mvm, "TX BA Session failed %sing, status 0x%x\n", 3029e705c121SKalle Valo start ? "start" : "stopp", status); 3030e705c121SKalle Valo break; 3031e705c121SKalle Valo } 3032e705c121SKalle Valo 3033e705c121SKalle Valo return ret; 3034e705c121SKalle Valo } 3035e705c121SKalle Valo 3036e705c121SKalle Valo const u8 tid_to_mac80211_ac[] = { 3037e705c121SKalle Valo IEEE80211_AC_BE, 3038e705c121SKalle Valo IEEE80211_AC_BK, 3039e705c121SKalle Valo IEEE80211_AC_BK, 3040e705c121SKalle Valo IEEE80211_AC_BE, 3041e705c121SKalle Valo IEEE80211_AC_VI, 3042e705c121SKalle Valo IEEE80211_AC_VI, 3043e705c121SKalle Valo IEEE80211_AC_VO, 3044e705c121SKalle Valo IEEE80211_AC_VO, 30459794c64fSLiad Kaufman IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 3046e705c121SKalle Valo }; 3047e705c121SKalle Valo 3048e705c121SKalle Valo static const u8 tid_to_ucode_ac[] = { 3049e705c121SKalle Valo AC_BE, 3050e705c121SKalle Valo AC_BK, 3051e705c121SKalle Valo AC_BK, 3052e705c121SKalle Valo AC_BE, 3053e705c121SKalle Valo AC_VI, 3054e705c121SKalle Valo AC_VI, 3055e705c121SKalle Valo AC_VO, 3056e705c121SKalle Valo AC_VO, 3057e705c121SKalle Valo }; 3058e705c121SKalle Valo 3059e705c121SKalle Valo int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3060e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 *ssn) 3061e705c121SKalle Valo { 3062e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3063e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 3064dd32162dSLiad Kaufman u16 normalized_ssn; 3065b0d795a9SMordechay Goodstein u16 txq_id; 3066e705c121SKalle Valo int ret; 3067e705c121SKalle Valo 3068e705c121SKalle Valo if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT)) 3069e705c121SKalle Valo return -EINVAL; 3070e705c121SKalle Valo 3071bd800e41SNaftali Goldstein if (mvmsta->tid_data[tid].state != IWL_AGG_QUEUED && 3072bd800e41SNaftali Goldstein mvmsta->tid_data[tid].state != IWL_AGG_OFF) { 3073bd800e41SNaftali Goldstein IWL_ERR(mvm, 3074bd800e41SNaftali Goldstein "Start AGG when state is not IWL_AGG_QUEUED or IWL_AGG_OFF %d!\n", 3075e705c121SKalle Valo mvmsta->tid_data[tid].state); 3076e705c121SKalle Valo return -ENXIO; 3077e705c121SKalle Valo } 3078e705c121SKalle Valo 3079e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3080e705c121SKalle Valo 3081bd8f3fc6SLiad Kaufman if (mvmsta->tid_data[tid].txq_id == IWL_MVM_INVALID_QUEUE && 3082bd8f3fc6SLiad Kaufman iwl_mvm_has_new_tx_api(mvm)) { 3083bd8f3fc6SLiad Kaufman u8 ac = tid_to_mac80211_ac[tid]; 3084bd8f3fc6SLiad Kaufman 3085bd8f3fc6SLiad Kaufman ret = iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 3086bd8f3fc6SLiad Kaufman if (ret) 3087bd8f3fc6SLiad Kaufman return ret; 3088bd8f3fc6SLiad Kaufman } 3089bd8f3fc6SLiad Kaufman 3090e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3091e705c121SKalle Valo 3092cf961e16SLiad Kaufman /* 3093cf961e16SLiad Kaufman * Note the possible cases: 30944a6d2e52SAvraham Stern * 1. An enabled TXQ - TXQ needs to become agg'ed 30954a6d2e52SAvraham Stern * 2. The TXQ hasn't yet been enabled, so find a free one and mark 30964a6d2e52SAvraham Stern * it as reserved 3097cf961e16SLiad Kaufman */ 3098cf961e16SLiad Kaufman txq_id = mvmsta->tid_data[tid].txq_id; 309934e10860SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) { 3100c8ee33e1SGregory Greenman ret = iwl_mvm_find_free_queue(mvm, mvmsta->deflink.sta_id, 3101c8f54701SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 3102c8f54701SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 3103b0d795a9SMordechay Goodstein if (ret < 0) { 3104e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate agg queue\n"); 3105f3f240f9SJohannes Berg goto out; 3106e705c121SKalle Valo } 3107cf961e16SLiad Kaufman 3108b0d795a9SMordechay Goodstein txq_id = ret; 3109b0d795a9SMordechay Goodstein 3110cf961e16SLiad Kaufman /* TXQ hasn't yet been enabled, so mark it only as reserved */ 3111cf961e16SLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_RESERVED; 3112b0d795a9SMordechay Goodstein } else if (WARN_ON(txq_id >= IWL_MAX_HW_QUEUES)) { 3113b0d795a9SMordechay Goodstein ret = -ENXIO; 3114b0d795a9SMordechay Goodstein IWL_ERR(mvm, "tid_id %d out of range (0, %d)!\n", 3115b0d795a9SMordechay Goodstein tid, IWL_MAX_HW_QUEUES - 1); 3116b0d795a9SMordechay Goodstein goto out; 3117b0d795a9SMordechay Goodstein 31184a6d2e52SAvraham Stern } else if (unlikely(mvm->queue_info[txq_id].status == 31194a6d2e52SAvraham Stern IWL_MVM_QUEUE_SHARED)) { 31204a6d2e52SAvraham Stern ret = -ENXIO; 31214a6d2e52SAvraham Stern IWL_DEBUG_TX_QUEUES(mvm, 31224a6d2e52SAvraham Stern "Can't start tid %d agg on shared queue!\n", 31234a6d2e52SAvraham Stern tid); 3124f3f240f9SJohannes Berg goto out; 3125cf961e16SLiad Kaufman } 31269f9af3d7SLiad Kaufman 3127cf961e16SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 3128cf961e16SLiad Kaufman "AGG for tid %d will be on queue #%d\n", 3129cf961e16SLiad Kaufman tid, txq_id); 3130cf961e16SLiad Kaufman 3131e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 3132e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3133e705c121SKalle Valo tid_data->txq_id = txq_id; 3134e705c121SKalle Valo *ssn = tid_data->ssn; 3135e705c121SKalle Valo 3136e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 3137e705c121SKalle Valo "Start AGG: sta %d tid %d queue %d - ssn = %d, next_recl = %d\n", 3138c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid, txq_id, 3139c8ee33e1SGregory Greenman tid_data->ssn, 3140e705c121SKalle Valo tid_data->next_reclaimed); 3141e705c121SKalle Valo 3142dd32162dSLiad Kaufman /* 31432f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 3144dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 3145dd32162dSLiad Kaufman */ 3146dd32162dSLiad Kaufman normalized_ssn = tid_data->ssn; 3147286ca8ebSLuca Coelho if (mvm->trans->trans_cfg->gen2) 3148dd32162dSLiad Kaufman normalized_ssn &= 0xff; 3149dd32162dSLiad Kaufman 3150dd32162dSLiad Kaufman if (normalized_ssn == tid_data->next_reclaimed) { 3151e705c121SKalle Valo tid_data->state = IWL_AGG_STARTING; 31522ce113deSJohannes Berg ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 3153e705c121SKalle Valo } else { 3154e705c121SKalle Valo tid_data->state = IWL_EMPTYING_HW_QUEUE_ADDBA; 31557e0ca723SMordechay Goodstein ret = IEEE80211_AMPDU_TX_START_DELAY_ADDBA; 31562ce113deSJohannes Berg } 3157e705c121SKalle Valo 31589f9af3d7SLiad Kaufman out: 3159e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3160e705c121SKalle Valo 3161e705c121SKalle Valo return ret; 3162e705c121SKalle Valo } 3163e705c121SKalle Valo 3164e705c121SKalle Valo int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3165514c3069SLuca Coelho struct ieee80211_sta *sta, u16 tid, u16 buf_size, 3166bb81bb68SEmmanuel Grumbach bool amsdu) 3167e705c121SKalle Valo { 3168e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3169e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3170e705c121SKalle Valo unsigned int wdg_timeout = 3171e705c121SKalle Valo iwl_mvm_get_wd_timeout(mvm, vif, sta->tdls, false); 3172eea76c36SEmmanuel Grumbach int queue, ret; 3173cf961e16SLiad Kaufman bool alloc_queue = true; 31749f9af3d7SLiad Kaufman enum iwl_mvm_queue_status queue_status; 3175e705c121SKalle Valo u16 ssn; 3176e705c121SKalle Valo 3177eea76c36SEmmanuel Grumbach struct iwl_trans_txq_scd_cfg cfg = { 3178c8ee33e1SGregory Greenman .sta_id = mvmsta->deflink.sta_id, 3179eea76c36SEmmanuel Grumbach .tid = tid, 3180eea76c36SEmmanuel Grumbach .frame_limit = buf_size, 3181eea76c36SEmmanuel Grumbach .aggregate = true, 3182eea76c36SEmmanuel Grumbach }; 3183eea76c36SEmmanuel Grumbach 3184ecaf71deSGregory Greenman /* 3185ecaf71deSGregory Greenman * When FW supports TLC_OFFLOAD, it also implements Tx aggregation 3186ecaf71deSGregory Greenman * manager, so this function should never be called in this case. 3187ecaf71deSGregory Greenman */ 31884243edb4SEmmanuel Grumbach if (WARN_ON_ONCE(iwl_mvm_has_tlc_offload(mvm))) 3189ecaf71deSGregory Greenman return -EINVAL; 3190ecaf71deSGregory Greenman 3191e705c121SKalle Valo BUILD_BUG_ON((sizeof(mvmsta->agg_tids) * BITS_PER_BYTE) 3192e705c121SKalle Valo != IWL_MAX_TID_COUNT); 3193e705c121SKalle Valo 3194e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3195e705c121SKalle Valo ssn = tid_data->ssn; 3196e705c121SKalle Valo queue = tid_data->txq_id; 3197e705c121SKalle Valo tid_data->state = IWL_AGG_ON; 3198e705c121SKalle Valo mvmsta->agg_tids |= BIT(tid); 3199e705c121SKalle Valo tid_data->ssn = 0xffff; 3200bb81bb68SEmmanuel Grumbach tid_data->amsdu_in_ampdu_allowed = amsdu; 3201e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3202e705c121SKalle Valo 320334e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 320434e10860SSara Sharon /* 32050ec9257bSSara Sharon * If there is no queue for this tid, iwl_mvm_sta_tx_agg_start() 32060ec9257bSSara Sharon * would have failed, so if we are here there is no need to 32070ec9257bSSara Sharon * allocate a queue. 32080ec9257bSSara Sharon * However, if aggregation size is different than the default 32090ec9257bSSara Sharon * size, the scheduler should be reconfigured. 32100ec9257bSSara Sharon * We cannot do this with the new TX API, so return unsupported 32110ec9257bSSara Sharon * for now, until it will be offloaded to firmware.. 32120ec9257bSSara Sharon * Note that if SCD default value changes - this condition 32130ec9257bSSara Sharon * should be updated as well. 321434e10860SSara Sharon */ 32150ec9257bSSara Sharon if (buf_size < IWL_FRAME_LIMIT) 321634e10860SSara Sharon return -ENOTSUPP; 321734e10860SSara Sharon 321834e10860SSara Sharon ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 321934e10860SSara Sharon if (ret) 322034e10860SSara Sharon return -EIO; 322134e10860SSara Sharon goto out; 322234e10860SSara Sharon } 322334e10860SSara Sharon 3224eea76c36SEmmanuel Grumbach cfg.fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 3225e705c121SKalle Valo 32269f9af3d7SLiad Kaufman queue_status = mvm->queue_info[queue].status; 32279f9af3d7SLiad Kaufman 3228cf961e16SLiad Kaufman /* Maybe there is no need to even alloc a queue... */ 3229cf961e16SLiad Kaufman if (mvm->queue_info[queue].status == IWL_MVM_QUEUE_READY) 3230cf961e16SLiad Kaufman alloc_queue = false; 3231cf961e16SLiad Kaufman 3232cf961e16SLiad Kaufman /* 3233cf961e16SLiad Kaufman * Only reconfig the SCD for the queue if the window size has 3234cf961e16SLiad Kaufman * changed from current (become smaller) 3235cf961e16SLiad Kaufman */ 32360ec9257bSSara Sharon if (!alloc_queue && buf_size < IWL_FRAME_LIMIT) { 3237cf961e16SLiad Kaufman /* 3238cf961e16SLiad Kaufman * If reconfiguring an existing queue, it first must be 3239cf961e16SLiad Kaufman * drained 3240cf961e16SLiad Kaufman */ 3241a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 3242cf961e16SLiad Kaufman BIT(queue)); 3243cf961e16SLiad Kaufman if (ret) { 3244cf961e16SLiad Kaufman IWL_ERR(mvm, 3245cf961e16SLiad Kaufman "Error draining queue before reconfig\n"); 3246cf961e16SLiad Kaufman return ret; 3247cf961e16SLiad Kaufman } 3248cf961e16SLiad Kaufman 3249cf961e16SLiad Kaufman ret = iwl_mvm_reconfig_scd(mvm, queue, cfg.fifo, 3250c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid, 3251cf961e16SLiad Kaufman buf_size, ssn); 3252cf961e16SLiad Kaufman if (ret) { 3253cf961e16SLiad Kaufman IWL_ERR(mvm, 3254cf961e16SLiad Kaufman "Error reconfiguring TXQ #%d\n", queue); 3255cf961e16SLiad Kaufman return ret; 3256cf961e16SLiad Kaufman } 3257cf961e16SLiad Kaufman } 3258cf961e16SLiad Kaufman 3259cf961e16SLiad Kaufman if (alloc_queue) 3260cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, queue, ssn, 3261cf961e16SLiad Kaufman &cfg, wdg_timeout); 3262e705c121SKalle Valo 32639f9af3d7SLiad Kaufman /* Send ADD_STA command to enable aggs only if the queue isn't shared */ 32649f9af3d7SLiad Kaufman if (queue_status != IWL_MVM_QUEUE_SHARED) { 3265e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 3266e705c121SKalle Valo if (ret) 3267e705c121SKalle Valo return -EIO; 32689f9af3d7SLiad Kaufman } 3269e705c121SKalle Valo 3270e705c121SKalle Valo /* No need to mark as reserved */ 3271cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 3272e705c121SKalle Valo 327334e10860SSara Sharon out: 3274e705c121SKalle Valo /* 3275e705c121SKalle Valo * Even though in theory the peer could have different 3276e705c121SKalle Valo * aggregation reorder buffer sizes for different sessions, 3277e705c121SKalle Valo * our ucode doesn't allow for that and has a global limit 3278e705c121SKalle Valo * for each station. Therefore, use the minimum of all the 3279e705c121SKalle Valo * aggregation sessions and our default value. 3280e705c121SKalle Valo */ 328159c2d94bSGregory Greenman mvmsta->deflink.lq_sta.rs_drv.pers.max_agg_bufsize = 328259c2d94bSGregory Greenman min(mvmsta->deflink.lq_sta.rs_drv.pers.max_agg_bufsize, 328359c2d94bSGregory Greenman buf_size); 3284c8ee33e1SGregory Greenman mvmsta->deflink.lq_sta.rs_drv.lq.agg_frame_cnt_limit = 328559c2d94bSGregory Greenman mvmsta->deflink.lq_sta.rs_drv.pers.max_agg_bufsize; 3286e705c121SKalle Valo 3287e705c121SKalle Valo IWL_DEBUG_HT(mvm, "Tx aggregation enabled on ra = %pM tid = %d\n", 3288e705c121SKalle Valo sta->addr, tid); 3289e705c121SKalle Valo 3290c8ee33e1SGregory Greenman return iwl_mvm_send_lq_cmd(mvm, &mvmsta->deflink.lq_sta.rs_drv.lq); 3291e705c121SKalle Valo } 3292e705c121SKalle Valo 329334e10860SSara Sharon static void iwl_mvm_unreserve_agg_queue(struct iwl_mvm *mvm, 329434e10860SSara Sharon struct iwl_mvm_sta *mvmsta, 32954b387906SAvraham Stern struct iwl_mvm_tid_data *tid_data) 329634e10860SSara Sharon { 32974b387906SAvraham Stern u16 txq_id = tid_data->txq_id; 32984b387906SAvraham Stern 3299f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 3300f3f240f9SJohannes Berg 330134e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 330234e10860SSara Sharon return; 330334e10860SSara Sharon 330434e10860SSara Sharon /* 330534e10860SSara Sharon * The TXQ is marked as reserved only if no traffic came through yet 330634e10860SSara Sharon * This means no traffic has been sent on this TID (agg'd or not), so 330734e10860SSara Sharon * we no longer have use for the queue. Since it hasn't even been 330834e10860SSara Sharon * allocated through iwl_mvm_enable_txq, so we can just mark it back as 330934e10860SSara Sharon * free. 331034e10860SSara Sharon */ 33114b387906SAvraham Stern if (mvm->queue_info[txq_id].status == IWL_MVM_QUEUE_RESERVED) { 331234e10860SSara Sharon mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_FREE; 33134b387906SAvraham Stern tid_data->txq_id = IWL_MVM_INVALID_QUEUE; 33144b387906SAvraham Stern } 331534e10860SSara Sharon } 331634e10860SSara Sharon 3317e705c121SKalle Valo int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3318e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3319e705c121SKalle Valo { 3320e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3321e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3322e705c121SKalle Valo u16 txq_id; 3323e705c121SKalle Valo int err; 3324e705c121SKalle Valo 3325e705c121SKalle Valo /* 3326e705c121SKalle Valo * If mac80211 is cleaning its state, then say that we finished since 3327e705c121SKalle Valo * our state has been cleared anyway. 3328e705c121SKalle Valo */ 3329e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3330e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3331e705c121SKalle Valo return 0; 3332e705c121SKalle Valo } 3333e705c121SKalle Valo 3334e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3335e705c121SKalle Valo 3336e705c121SKalle Valo txq_id = tid_data->txq_id; 3337e705c121SKalle Valo 3338e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Stop AGG: sta %d tid %d q %d state %d\n", 3339c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid, txq_id, 3340c8ee33e1SGregory Greenman tid_data->state); 3341e705c121SKalle Valo 3342e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3343e705c121SKalle Valo 33444b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3345e705c121SKalle Valo 3346e705c121SKalle Valo switch (tid_data->state) { 3347e705c121SKalle Valo case IWL_AGG_ON: 3348e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3349e705c121SKalle Valo 3350e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 3351e705c121SKalle Valo "ssn = %d, next_recl = %d\n", 3352e705c121SKalle Valo tid_data->ssn, tid_data->next_reclaimed); 3353e705c121SKalle Valo 3354e705c121SKalle Valo tid_data->ssn = 0xffff; 3355e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3356e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3357e705c121SKalle Valo 3358e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3359e705c121SKalle Valo 3360e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3361e705c121SKalle Valo return 0; 3362e705c121SKalle Valo case IWL_AGG_STARTING: 3363e705c121SKalle Valo case IWL_EMPTYING_HW_QUEUE_ADDBA: 3364e705c121SKalle Valo /* 3365e705c121SKalle Valo * The agg session has been stopped before it was set up. This 3366e705c121SKalle Valo * can happen when the AddBA timer times out for example. 3367e705c121SKalle Valo */ 3368e705c121SKalle Valo 3369e705c121SKalle Valo /* No barriers since we are under mutex */ 3370e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3371e705c121SKalle Valo 3372e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3373e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3374e705c121SKalle Valo err = 0; 3375e705c121SKalle Valo break; 3376e705c121SKalle Valo default: 3377e705c121SKalle Valo IWL_ERR(mvm, 3378e705c121SKalle Valo "Stopping AGG while state not ON or starting for %d on %d (%d)\n", 3379c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid, tid_data->state); 3380e705c121SKalle Valo IWL_ERR(mvm, 3381e705c121SKalle Valo "\ttid_data->txq_id = %d\n", tid_data->txq_id); 3382e705c121SKalle Valo err = -EINVAL; 3383e705c121SKalle Valo } 3384e705c121SKalle Valo 3385e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3386e705c121SKalle Valo 3387e705c121SKalle Valo return err; 3388e705c121SKalle Valo } 3389e705c121SKalle Valo 3390e705c121SKalle Valo int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3391e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3392e705c121SKalle Valo { 3393e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3394e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3395e705c121SKalle Valo u16 txq_id; 3396e705c121SKalle Valo enum iwl_mvm_agg_state old_state; 3397e705c121SKalle Valo 3398e705c121SKalle Valo /* 3399e705c121SKalle Valo * First set the agg state to OFF to avoid calling 3400e705c121SKalle Valo * ieee80211_stop_tx_ba_cb in iwl_mvm_check_ratid_empty. 3401e705c121SKalle Valo */ 3402e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3403e705c121SKalle Valo txq_id = tid_data->txq_id; 3404e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Flush AGG: sta %d tid %d q %d state %d\n", 3405c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid, txq_id, 3406c8ee33e1SGregory Greenman tid_data->state); 3407e705c121SKalle Valo old_state = tid_data->state; 3408e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3409e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3410e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3411e705c121SKalle Valo 34124b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3413e705c121SKalle Valo 3414e705c121SKalle Valo if (old_state >= IWL_AGG_ON) { 3415e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, true); 3416d167e81aSMordechai Goodstein 3417d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) { 3418c8ee33e1SGregory Greenman if (iwl_mvm_flush_sta_tids(mvm, mvmsta->deflink.sta_id, 3419d4e3a341SMordechay Goodstein BIT(tid))) 3420d167e81aSMordechai Goodstein IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 3421d167e81aSMordechai Goodstein iwl_trans_wait_txq_empty(mvm->trans, txq_id); 3422d167e81aSMordechai Goodstein } else { 3423d4e3a341SMordechay Goodstein if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id))) 3424e705c121SKalle Valo IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 34250b90964aSSara Sharon iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(txq_id)); 3426d167e81aSMordechai Goodstein } 3427d6d517b7SSara Sharon 3428e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, false); 3429e705c121SKalle Valo 3430e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3431e705c121SKalle Valo } 3432e705c121SKalle Valo 3433e705c121SKalle Valo return 0; 3434e705c121SKalle Valo } 3435e705c121SKalle Valo 3436e705c121SKalle Valo static int iwl_mvm_set_fw_key_idx(struct iwl_mvm *mvm) 3437e705c121SKalle Valo { 3438e705c121SKalle Valo int i, max = -1, max_offs = -1; 3439e705c121SKalle Valo 3440e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3441e705c121SKalle Valo 3442e705c121SKalle Valo /* Pick the unused key offset with the highest 'deleted' 3443e705c121SKalle Valo * counter. Every time a key is deleted, all the counters 3444e705c121SKalle Valo * are incremented and the one that was just deleted is 3445e705c121SKalle Valo * reset to zero. Thus, the highest counter is the one 3446e705c121SKalle Valo * that was deleted longest ago. Pick that one. 3447e705c121SKalle Valo */ 3448e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3449e705c121SKalle Valo if (test_bit(i, mvm->fw_key_table)) 3450e705c121SKalle Valo continue; 3451e705c121SKalle Valo if (mvm->fw_key_deleted[i] > max) { 3452e705c121SKalle Valo max = mvm->fw_key_deleted[i]; 3453e705c121SKalle Valo max_offs = i; 3454e705c121SKalle Valo } 3455e705c121SKalle Valo } 3456e705c121SKalle Valo 3457e705c121SKalle Valo if (max_offs < 0) 3458e705c121SKalle Valo return STA_KEY_IDX_INVALID; 3459e705c121SKalle Valo 3460e705c121SKalle Valo return max_offs; 3461e705c121SKalle Valo } 3462e705c121SKalle Valo 34635f7a1847SJohannes Berg static struct iwl_mvm_sta *iwl_mvm_get_key_sta(struct iwl_mvm *mvm, 34644615fd15SEmmanuel Grumbach struct ieee80211_vif *vif, 3465e705c121SKalle Valo struct ieee80211_sta *sta) 3466e705c121SKalle Valo { 3467e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3468e705c121SKalle Valo 34695f7a1847SJohannes Berg if (sta) 34705f7a1847SJohannes Berg return iwl_mvm_sta_from_mac80211(sta); 3471e705c121SKalle Valo 3472e705c121SKalle Valo /* 3473e705c121SKalle Valo * The device expects GTKs for station interfaces to be 3474e705c121SKalle Valo * installed as GTKs for the AP station. If we have no 3475e705c121SKalle Valo * station ID, then use AP's station ID. 3476e705c121SKalle Valo */ 3477e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 3478650cadb7SGregory Greenman mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 3479650cadb7SGregory Greenman u8 sta_id = mvmvif->deflink.ap_sta_id; 34804615fd15SEmmanuel Grumbach 34817d6a1ab6SEmmanuel Grumbach sta = rcu_dereference_check(mvm->fw_id_to_mac_id[sta_id], 34827d6a1ab6SEmmanuel Grumbach lockdep_is_held(&mvm->mutex)); 34837d6a1ab6SEmmanuel Grumbach 34844615fd15SEmmanuel Grumbach /* 34854615fd15SEmmanuel Grumbach * It is possible that the 'sta' parameter is NULL, 34864615fd15SEmmanuel Grumbach * for example when a GTK is removed - the sta_id will then 34874615fd15SEmmanuel Grumbach * be the AP ID, and no station was passed by mac80211. 34884615fd15SEmmanuel Grumbach */ 34897d6a1ab6SEmmanuel Grumbach if (IS_ERR_OR_NULL(sta)) 34907d6a1ab6SEmmanuel Grumbach return NULL; 34917d6a1ab6SEmmanuel Grumbach 34927d6a1ab6SEmmanuel Grumbach return iwl_mvm_sta_from_mac80211(sta); 34934615fd15SEmmanuel Grumbach } 3494e705c121SKalle Valo 34955f7a1847SJohannes Berg return NULL; 3496e705c121SKalle Valo } 3497e705c121SKalle Valo 3498a6dfbd04SJohannes Berg static int iwl_mvm_pn_cmp(const u8 *pn1, const u8 *pn2, int len) 3499a6dfbd04SJohannes Berg { 3500a6dfbd04SJohannes Berg int i; 3501a6dfbd04SJohannes Berg 3502a6dfbd04SJohannes Berg for (i = len - 1; i >= 0; i--) { 3503a6dfbd04SJohannes Berg if (pn1[i] > pn2[i]) 3504a6dfbd04SJohannes Berg return 1; 3505a6dfbd04SJohannes Berg if (pn1[i] < pn2[i]) 3506a6dfbd04SJohannes Berg return -1; 3507a6dfbd04SJohannes Berg } 3508a6dfbd04SJohannes Berg 3509a6dfbd04SJohannes Berg return 0; 3510a6dfbd04SJohannes Berg } 3511a6dfbd04SJohannes Berg 3512e705c121SKalle Valo static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm, 351385aeb58cSDavid Spinadel u32 sta_id, 351445c458b4SSara Sharon struct ieee80211_key_conf *key, bool mcast, 35154615fd15SEmmanuel Grumbach u32 tkip_iv32, u16 *tkip_p1k, u32 cmd_flags, 35164883145aSEmmanuel Grumbach u8 key_offset, bool mfp) 3517e705c121SKalle Valo { 351845c458b4SSara Sharon union { 351945c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 352045c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd cmd; 352145c458b4SSara Sharon } u = {}; 3522e705c121SKalle Valo __le16 key_flags; 3523e705c121SKalle Valo int ret; 3524e705c121SKalle Valo u32 status; 3525e705c121SKalle Valo u16 keyidx; 352645c458b4SSara Sharon u64 pn = 0; 352745c458b4SSara Sharon int i, size; 352845c458b4SSara Sharon bool new_api = fw_has_api(&mvm->fw->ucode_capa, 352945c458b4SSara Sharon IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 3530971cbe50SJohannes Berg int api_ver = iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA_KEY, 3531199d895fSJohannes Berg new_api ? 2 : 1); 3532e705c121SKalle Valo 353385aeb58cSDavid Spinadel if (sta_id == IWL_MVM_INVALID_STA) 353485aeb58cSDavid Spinadel return -EINVAL; 353585aeb58cSDavid Spinadel 353645c458b4SSara Sharon keyidx = (key->keyidx << STA_KEY_FLG_KEYID_POS) & 3537e705c121SKalle Valo STA_KEY_FLG_KEYID_MSK; 3538e705c121SKalle Valo key_flags = cpu_to_le16(keyidx); 3539e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_KEY_MAP); 3540e705c121SKalle Valo 354145c458b4SSara Sharon switch (key->cipher) { 3542e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 3543e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_TKIP); 3544199d895fSJohannes Berg if (api_ver >= 2) { 354545c458b4SSara Sharon memcpy((void *)&u.cmd.tx_mic_key, 354645c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], 354745c458b4SSara Sharon IWL_MIC_KEY_SIZE); 354845c458b4SSara Sharon 354945c458b4SSara Sharon memcpy((void *)&u.cmd.rx_mic_key, 355045c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], 355145c458b4SSara Sharon IWL_MIC_KEY_SIZE); 355245c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 355345c458b4SSara Sharon 355445c458b4SSara Sharon } else { 355545c458b4SSara Sharon u.cmd_v1.tkip_rx_tsc_byte2 = tkip_iv32; 3556e705c121SKalle Valo for (i = 0; i < 5; i++) 355745c458b4SSara Sharon u.cmd_v1.tkip_rx_ttak[i] = 355845c458b4SSara Sharon cpu_to_le16(tkip_p1k[i]); 355945c458b4SSara Sharon } 356045c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3561e705c121SKalle Valo break; 3562e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 3563e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_CCM); 356445c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3565199d895fSJohannes Berg if (api_ver >= 2) 356645c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 3567e705c121SKalle Valo break; 3568e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 3569e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_13BYTES); 35705a2abdcaSGustavo A. R. Silva fallthrough; 3571e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 3572e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP); 357345c458b4SSara Sharon memcpy(u.cmd.common.key + 3, key->key, key->keylen); 3574e705c121SKalle Valo break; 35752a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 35762a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_KEY_32BYTES); 35775a2abdcaSGustavo A. R. Silva fallthrough; 35782a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 35792a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_GCMP); 358045c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3581199d895fSJohannes Berg if (api_ver >= 2) 358245c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 35832a53d166SAyala Beker break; 3584e705c121SKalle Valo default: 3585e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_EXT); 358645c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3587e705c121SKalle Valo } 3588e705c121SKalle Valo 3589e705c121SKalle Valo if (mcast) 3590e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 35914883145aSEmmanuel Grumbach if (mfp) 35924883145aSEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MFP); 3593e705c121SKalle Valo 359445c458b4SSara Sharon u.cmd.common.key_offset = key_offset; 359545c458b4SSara Sharon u.cmd.common.key_flags = key_flags; 359685aeb58cSDavid Spinadel u.cmd.common.sta_id = sta_id; 359745c458b4SSara Sharon 3598a6dfbd04SJohannes Berg if (key->cipher == WLAN_CIPHER_SUITE_TKIP) 3599a6dfbd04SJohannes Berg i = 0; 3600a6dfbd04SJohannes Berg else 3601a6dfbd04SJohannes Berg i = -1; 3602a6dfbd04SJohannes Berg 3603a6dfbd04SJohannes Berg for (; i < IEEE80211_NUM_TIDS; i++) { 3604a6dfbd04SJohannes Berg struct ieee80211_key_seq seq = {}; 3605a6dfbd04SJohannes Berg u8 _rx_pn[IEEE80211_MAX_PN_LEN] = {}, *rx_pn = _rx_pn; 3606a6dfbd04SJohannes Berg int rx_pn_len = 8; 3607199d895fSJohannes Berg /* there's a hole at 2/3 in FW format depending on version */ 3608199d895fSJohannes Berg int hole = api_ver >= 3 ? 0 : 2; 3609a6dfbd04SJohannes Berg 3610a6dfbd04SJohannes Berg ieee80211_get_key_rx_seq(key, i, &seq); 3611a6dfbd04SJohannes Berg 3612a6dfbd04SJohannes Berg if (key->cipher == WLAN_CIPHER_SUITE_TKIP) { 3613a6dfbd04SJohannes Berg rx_pn[0] = seq.tkip.iv16; 3614a6dfbd04SJohannes Berg rx_pn[1] = seq.tkip.iv16 >> 8; 3615199d895fSJohannes Berg rx_pn[2 + hole] = seq.tkip.iv32; 3616199d895fSJohannes Berg rx_pn[3 + hole] = seq.tkip.iv32 >> 8; 3617199d895fSJohannes Berg rx_pn[4 + hole] = seq.tkip.iv32 >> 16; 3618199d895fSJohannes Berg rx_pn[5 + hole] = seq.tkip.iv32 >> 24; 3619a6dfbd04SJohannes Berg } else if (key_flags & cpu_to_le16(STA_KEY_FLG_EXT)) { 3620a6dfbd04SJohannes Berg rx_pn = seq.hw.seq; 3621a6dfbd04SJohannes Berg rx_pn_len = seq.hw.seq_len; 3622a6dfbd04SJohannes Berg } else { 3623a6dfbd04SJohannes Berg rx_pn[0] = seq.ccmp.pn[0]; 3624a6dfbd04SJohannes Berg rx_pn[1] = seq.ccmp.pn[1]; 3625199d895fSJohannes Berg rx_pn[2 + hole] = seq.ccmp.pn[2]; 3626199d895fSJohannes Berg rx_pn[3 + hole] = seq.ccmp.pn[3]; 3627199d895fSJohannes Berg rx_pn[4 + hole] = seq.ccmp.pn[4]; 3628199d895fSJohannes Berg rx_pn[5 + hole] = seq.ccmp.pn[5]; 3629a6dfbd04SJohannes Berg } 3630a6dfbd04SJohannes Berg 3631a6dfbd04SJohannes Berg if (iwl_mvm_pn_cmp(rx_pn, (u8 *)&u.cmd.common.rx_secur_seq_cnt, 3632a6dfbd04SJohannes Berg rx_pn_len) > 0) 3633a6dfbd04SJohannes Berg memcpy(&u.cmd.common.rx_secur_seq_cnt, rx_pn, 3634a6dfbd04SJohannes Berg rx_pn_len); 3635a6dfbd04SJohannes Berg } 3636a6dfbd04SJohannes Berg 3637199d895fSJohannes Berg if (api_ver >= 2) { 363845c458b4SSara Sharon u.cmd.transmit_seq_cnt = cpu_to_le64(pn); 363945c458b4SSara Sharon size = sizeof(u.cmd); 364045c458b4SSara Sharon } else { 364145c458b4SSara Sharon size = sizeof(u.cmd_v1); 364245c458b4SSara Sharon } 3643e705c121SKalle Valo 3644e705c121SKalle Valo status = ADD_STA_SUCCESS; 3645e705c121SKalle Valo if (cmd_flags & CMD_ASYNC) 364645c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA_KEY, CMD_ASYNC, size, 364745c458b4SSara Sharon &u.cmd); 3648e705c121SKalle Valo else 364945c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, 365045c458b4SSara Sharon &u.cmd, &status); 3651e705c121SKalle Valo 3652e705c121SKalle Valo switch (status) { 3653e705c121SKalle Valo case ADD_STA_SUCCESS: 3654e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "MODIFY_STA: set dynamic key passed\n"); 3655e705c121SKalle Valo break; 3656e705c121SKalle Valo default: 3657e705c121SKalle Valo ret = -EIO; 3658e705c121SKalle Valo IWL_ERR(mvm, "MODIFY_STA: set dynamic key failed\n"); 3659e705c121SKalle Valo break; 3660e705c121SKalle Valo } 3661e705c121SKalle Valo 3662e705c121SKalle Valo return ret; 3663e705c121SKalle Valo } 3664e705c121SKalle Valo 3665e705c121SKalle Valo static int iwl_mvm_send_sta_igtk(struct iwl_mvm *mvm, 3666e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3667e705c121SKalle Valo u8 sta_id, bool remove_key) 3668e705c121SKalle Valo { 3669e705c121SKalle Valo struct iwl_mvm_mgmt_mcast_key_cmd igtk_cmd = {}; 3670e705c121SKalle Valo 3671e705c121SKalle Valo /* verify the key details match the required command's expectations */ 36728e160ab8SAyala Beker if (WARN_ON((keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) || 3673b1fdc250SJohannes Berg (keyconf->keyidx != 4 && keyconf->keyidx != 5 && 3674b1fdc250SJohannes Berg keyconf->keyidx != 6 && keyconf->keyidx != 7) || 36758e160ab8SAyala Beker (keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC && 36768e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_128 && 36778e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_256))) 36788e160ab8SAyala Beker return -EINVAL; 36798e160ab8SAyala Beker 36808e160ab8SAyala Beker if (WARN_ON(!iwl_mvm_has_new_rx_api(mvm) && 36818e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC)) 3682e705c121SKalle Valo return -EINVAL; 3683e705c121SKalle Valo 3684e705c121SKalle Valo igtk_cmd.key_id = cpu_to_le32(keyconf->keyidx); 3685e705c121SKalle Valo igtk_cmd.sta_id = cpu_to_le32(sta_id); 3686e705c121SKalle Valo 3687e705c121SKalle Valo if (remove_key) { 3688197288d5SLuca Coelho /* This is a valid situation for IGTK */ 3689197288d5SLuca Coelho if (sta_id == IWL_MVM_INVALID_STA) 3690197288d5SLuca Coelho return 0; 3691197288d5SLuca Coelho 3692e705c121SKalle Valo igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_NOT_VALID); 3693e705c121SKalle Valo } else { 3694e705c121SKalle Valo struct ieee80211_key_seq seq; 3695e705c121SKalle Valo const u8 *pn; 3696e705c121SKalle Valo 3697aa950524SAyala Beker switch (keyconf->cipher) { 3698aa950524SAyala Beker case WLAN_CIPHER_SUITE_AES_CMAC: 3699aa950524SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_CCM); 3700aa950524SAyala Beker break; 37018e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_128: 37028e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_256: 37038e160ab8SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_GCMP); 37048e160ab8SAyala Beker break; 3705aa950524SAyala Beker default: 3706aa950524SAyala Beker return -EINVAL; 3707aa950524SAyala Beker } 3708aa950524SAyala Beker 37098e160ab8SAyala Beker memcpy(igtk_cmd.igtk, keyconf->key, keyconf->keylen); 37108e160ab8SAyala Beker if (keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 37118e160ab8SAyala Beker igtk_cmd.ctrl_flags |= 37128e160ab8SAyala Beker cpu_to_le32(STA_KEY_FLG_KEY_32BYTES); 3713e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3714e705c121SKalle Valo pn = seq.aes_cmac.pn; 3715e705c121SKalle Valo igtk_cmd.receive_seq_cnt = cpu_to_le64(((u64) pn[5] << 0) | 3716e705c121SKalle Valo ((u64) pn[4] << 8) | 3717e705c121SKalle Valo ((u64) pn[3] << 16) | 3718e705c121SKalle Valo ((u64) pn[2] << 24) | 3719e705c121SKalle Valo ((u64) pn[1] << 32) | 3720e705c121SKalle Valo ((u64) pn[0] << 40)); 3721e705c121SKalle Valo } 3722e705c121SKalle Valo 3723b1fdc250SJohannes Berg IWL_DEBUG_INFO(mvm, "%s %sIGTK (%d) for sta %u\n", 3724e705c121SKalle Valo remove_key ? "removing" : "installing", 3725b1fdc250SJohannes Berg keyconf->keyidx >= 6 ? "B" : "", 3726b1fdc250SJohannes Berg keyconf->keyidx, igtk_cmd.sta_id); 3727e705c121SKalle Valo 37288e160ab8SAyala Beker if (!iwl_mvm_has_new_rx_api(mvm)) { 37298e160ab8SAyala Beker struct iwl_mvm_mgmt_mcast_key_cmd_v1 igtk_cmd_v1 = { 37308e160ab8SAyala Beker .ctrl_flags = igtk_cmd.ctrl_flags, 37318e160ab8SAyala Beker .key_id = igtk_cmd.key_id, 37328e160ab8SAyala Beker .sta_id = igtk_cmd.sta_id, 37338e160ab8SAyala Beker .receive_seq_cnt = igtk_cmd.receive_seq_cnt 37348e160ab8SAyala Beker }; 37358e160ab8SAyala Beker 37368e160ab8SAyala Beker memcpy(igtk_cmd_v1.igtk, igtk_cmd.igtk, 37378e160ab8SAyala Beker ARRAY_SIZE(igtk_cmd_v1.igtk)); 37388e160ab8SAyala Beker return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 37398e160ab8SAyala Beker sizeof(igtk_cmd_v1), &igtk_cmd_v1); 37408e160ab8SAyala Beker } 3741e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 3742e705c121SKalle Valo sizeof(igtk_cmd), &igtk_cmd); 3743e705c121SKalle Valo } 3744e705c121SKalle Valo 3745e705c121SKalle Valo 3746e705c121SKalle Valo static inline u8 *iwl_mvm_get_mac_addr(struct iwl_mvm *mvm, 3747e705c121SKalle Valo struct ieee80211_vif *vif, 3748e705c121SKalle Valo struct ieee80211_sta *sta) 3749e705c121SKalle Valo { 3750e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3751e705c121SKalle Valo 3752e705c121SKalle Valo if (sta) 3753e705c121SKalle Valo return sta->addr; 3754e705c121SKalle Valo 3755e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 3756650cadb7SGregory Greenman mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 3757650cadb7SGregory Greenman u8 sta_id = mvmvif->deflink.ap_sta_id; 3758e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 3759e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3760e705c121SKalle Valo return sta->addr; 3761e705c121SKalle Valo } 3762e705c121SKalle Valo 3763e705c121SKalle Valo 3764e705c121SKalle Valo return NULL; 3765e705c121SKalle Valo } 3766e705c121SKalle Valo 3767e705c121SKalle Valo static int __iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3768e705c121SKalle Valo struct ieee80211_vif *vif, 3769e705c121SKalle Valo struct ieee80211_sta *sta, 3770e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 37714615fd15SEmmanuel Grumbach u8 key_offset, 3772e705c121SKalle Valo bool mcast) 3773e705c121SKalle Valo { 3774e705c121SKalle Valo const u8 *addr; 3775e705c121SKalle Valo struct ieee80211_key_seq seq; 3776e705c121SKalle Valo u16 p1k[5]; 377785aeb58cSDavid Spinadel u32 sta_id; 37784883145aSEmmanuel Grumbach bool mfp = false; 377985aeb58cSDavid Spinadel 378085aeb58cSDavid Spinadel if (sta) { 378185aeb58cSDavid Spinadel struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 378285aeb58cSDavid Spinadel 3783c8ee33e1SGregory Greenman sta_id = mvm_sta->deflink.sta_id; 37844883145aSEmmanuel Grumbach mfp = sta->mfp; 378585aeb58cSDavid Spinadel } else if (vif->type == NL80211_IFTYPE_AP && 378685aeb58cSDavid Spinadel !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { 378785aeb58cSDavid Spinadel struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 378885aeb58cSDavid Spinadel 3789650cadb7SGregory Greenman sta_id = mvmvif->deflink.mcast_sta.sta_id; 379085aeb58cSDavid Spinadel } else { 379185aeb58cSDavid Spinadel IWL_ERR(mvm, "Failed to find station id\n"); 379285aeb58cSDavid Spinadel return -EINVAL; 379385aeb58cSDavid Spinadel } 3794e705c121SKalle Valo 379595a62c33SJohannes Berg if (keyconf->cipher == WLAN_CIPHER_SUITE_TKIP) { 3796e705c121SKalle Valo addr = iwl_mvm_get_mac_addr(mvm, vif, sta); 3797e705c121SKalle Valo /* get phase 1 key from mac80211 */ 3798e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3799e705c121SKalle Valo ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k); 380095a62c33SJohannes Berg 380195a62c33SJohannes Berg return iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 38024883145aSEmmanuel Grumbach seq.tkip.iv32, p1k, 0, key_offset, 38034883145aSEmmanuel Grumbach mfp); 3804e705c121SKalle Valo } 3805e705c121SKalle Valo 380695a62c33SJohannes Berg return iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 380795a62c33SJohannes Berg 0, NULL, 0, key_offset, mfp); 3808e705c121SKalle Valo } 3809e705c121SKalle Valo 3810e705c121SKalle Valo int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3811e705c121SKalle Valo struct ieee80211_vif *vif, 3812e705c121SKalle Valo struct ieee80211_sta *sta, 3813e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 38144615fd15SEmmanuel Grumbach u8 key_offset) 3815e705c121SKalle Valo { 3816e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 38175f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 381885aeb58cSDavid Spinadel u8 sta_id = IWL_MVM_INVALID_STA; 3819e705c121SKalle Valo int ret; 3820e705c121SKalle Valo static const u8 __maybe_unused zero_addr[ETH_ALEN] = {0}; 3821e705c121SKalle Valo 3822e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3823e705c121SKalle Valo 382485aeb58cSDavid Spinadel if (vif->type != NL80211_IFTYPE_AP || 382585aeb58cSDavid Spinadel keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) { 3826e705c121SKalle Valo /* Get the station id from the mvm local station table */ 38275f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 38285f7a1847SJohannes Berg if (!mvm_sta) { 38295f7a1847SJohannes Berg IWL_ERR(mvm, "Failed to find station\n"); 3830e705c121SKalle Valo return -EINVAL; 3831e705c121SKalle Valo } 3832c8ee33e1SGregory Greenman sta_id = mvm_sta->deflink.sta_id; 3833e705c121SKalle Valo 3834e705c121SKalle Valo /* 3835e705c121SKalle Valo * It is possible that the 'sta' parameter is NULL, and thus 383685aeb58cSDavid Spinadel * there is a need to retrieve the sta from the local station 383785aeb58cSDavid Spinadel * table. 3838e705c121SKalle Valo */ 3839e705c121SKalle Valo if (!sta) { 384085aeb58cSDavid Spinadel sta = rcu_dereference_protected( 384185aeb58cSDavid Spinadel mvm->fw_id_to_mac_id[sta_id], 3842e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3843e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) { 3844e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 3845e705c121SKalle Valo return -EINVAL; 3846e705c121SKalle Valo } 3847e705c121SKalle Valo } 3848e705c121SKalle Valo 3849e705c121SKalle Valo if (WARN_ON_ONCE(iwl_mvm_sta_from_mac80211(sta)->vif != vif)) 3850e705c121SKalle Valo return -EINVAL; 3851e829b17cSBeni Lev } else { 3852e829b17cSBeni Lev struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3853e829b17cSBeni Lev 3854650cadb7SGregory Greenman sta_id = mvmvif->deflink.mcast_sta.sta_id; 3855e829b17cSBeni Lev } 3856e829b17cSBeni Lev 3857e829b17cSBeni Lev if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3858e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3859e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) { 3860e829b17cSBeni Lev ret = iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, false); 3861e829b17cSBeni Lev goto end; 386285aeb58cSDavid Spinadel } 3863e705c121SKalle Valo 38644615fd15SEmmanuel Grumbach /* If the key_offset is not pre-assigned, we need to find a 38654615fd15SEmmanuel Grumbach * new offset to use. In normal cases, the offset is not 38664615fd15SEmmanuel Grumbach * pre-assigned, but during HW_RESTART we want to reuse the 38674615fd15SEmmanuel Grumbach * same indices, so we pass them when this function is called. 38684615fd15SEmmanuel Grumbach * 38694615fd15SEmmanuel Grumbach * In D3 entry, we need to hardcoded the indices (because the 38704615fd15SEmmanuel Grumbach * firmware hardcodes the PTK offset to 0). In this case, we 38714615fd15SEmmanuel Grumbach * need to make sure we don't overwrite the hw_key_idx in the 38724615fd15SEmmanuel Grumbach * keyconf structure, because otherwise we cannot configure 38734615fd15SEmmanuel Grumbach * the original ones back when resuming. 3874e705c121SKalle Valo */ 38754615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) { 38764615fd15SEmmanuel Grumbach key_offset = iwl_mvm_set_fw_key_idx(mvm); 38774615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) 3878e705c121SKalle Valo return -ENOSPC; 38794615fd15SEmmanuel Grumbach keyconf->hw_key_idx = key_offset; 3880e705c121SKalle Valo } 3881e705c121SKalle Valo 38824615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, key_offset, mcast); 38839c3deeb5SLuca Coelho if (ret) 3884e705c121SKalle Valo goto end; 3885e705c121SKalle Valo 3886e705c121SKalle Valo /* 3887e705c121SKalle Valo * For WEP, the same key is used for multicast and unicast. Upload it 3888e705c121SKalle Valo * again, using the same key offset, and now pointing the other one 3889e705c121SKalle Valo * to the same key slot (offset). 3890e705c121SKalle Valo * If this fails, remove the original as well. 3891e705c121SKalle Valo */ 389285aeb58cSDavid Spinadel if ((keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 389385aeb58cSDavid Spinadel keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) && 389485aeb58cSDavid Spinadel sta) { 38954615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, 38964615fd15SEmmanuel Grumbach key_offset, !mcast); 3897e705c121SKalle Valo if (ret) { 3898e705c121SKalle Valo __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 38999c3deeb5SLuca Coelho goto end; 3900e705c121SKalle Valo } 3901e705c121SKalle Valo } 3902e705c121SKalle Valo 39039c3deeb5SLuca Coelho __set_bit(key_offset, mvm->fw_key_table); 39049c3deeb5SLuca Coelho 3905e705c121SKalle Valo end: 3906e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "key: cipher=%x len=%d idx=%d sta=%pM ret=%d\n", 3907e705c121SKalle Valo keyconf->cipher, keyconf->keylen, keyconf->keyidx, 3908e705c121SKalle Valo sta ? sta->addr : zero_addr, ret); 3909e705c121SKalle Valo return ret; 3910e705c121SKalle Valo } 3911e705c121SKalle Valo 3912e705c121SKalle Valo int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, 3913e705c121SKalle Valo struct ieee80211_vif *vif, 3914e705c121SKalle Valo struct ieee80211_sta *sta, 3915e705c121SKalle Valo struct ieee80211_key_conf *keyconf) 3916e705c121SKalle Valo { 3917e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 39185f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 39190ae98812SSara Sharon u8 sta_id = IWL_MVM_INVALID_STA; 3920e705c121SKalle Valo int ret, i; 3921e705c121SKalle Valo 3922e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3923e705c121SKalle Valo 39245f7a1847SJohannes Berg /* Get the station from the mvm local station table */ 39255f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 392671793b7dSLuca Coelho if (mvm_sta) 3927c8ee33e1SGregory Greenman sta_id = mvm_sta->deflink.sta_id; 392885aeb58cSDavid Spinadel else if (!sta && vif->type == NL80211_IFTYPE_AP && mcast) 3929650cadb7SGregory Greenman sta_id = iwl_mvm_vif_from_mac80211(vif)->deflink.mcast_sta.sta_id; 393085aeb58cSDavid Spinadel 3931e705c121SKalle Valo 3932e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "mvm remove dynamic key: idx=%d sta=%d\n", 3933e705c121SKalle Valo keyconf->keyidx, sta_id); 3934e705c121SKalle Valo 3935197288d5SLuca Coelho if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 39368e160ab8SAyala Beker keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3937197288d5SLuca Coelho keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 3938e705c121SKalle Valo return iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, true); 3939e705c121SKalle Valo 3940e705c121SKalle Valo if (!__test_and_clear_bit(keyconf->hw_key_idx, mvm->fw_key_table)) { 3941e705c121SKalle Valo IWL_ERR(mvm, "offset %d not used in fw key table.\n", 3942e705c121SKalle Valo keyconf->hw_key_idx); 3943e705c121SKalle Valo return -ENOENT; 3944e705c121SKalle Valo } 3945e705c121SKalle Valo 3946e705c121SKalle Valo /* track which key was deleted last */ 3947e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3948e705c121SKalle Valo if (mvm->fw_key_deleted[i] < U8_MAX) 3949e705c121SKalle Valo mvm->fw_key_deleted[i]++; 3950e705c121SKalle Valo } 3951e705c121SKalle Valo mvm->fw_key_deleted[keyconf->hw_key_idx] = 0; 3952e705c121SKalle Valo 395385aeb58cSDavid Spinadel if (sta && !mvm_sta) { 3954e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "station non-existent, early return.\n"); 3955e705c121SKalle Valo return 0; 3956e705c121SKalle Valo } 3957e705c121SKalle Valo 3958e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 3959e705c121SKalle Valo if (ret) 3960e705c121SKalle Valo return ret; 3961e705c121SKalle Valo 3962e705c121SKalle Valo /* delete WEP key twice to get rid of (now useless) offset */ 3963e705c121SKalle Valo if (keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 3964e705c121SKalle Valo keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) 3965e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, !mcast); 3966e705c121SKalle Valo 3967e705c121SKalle Valo return ret; 3968e705c121SKalle Valo } 3969e705c121SKalle Valo 3970e705c121SKalle Valo void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, 3971e705c121SKalle Valo struct ieee80211_vif *vif, 3972e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3973e705c121SKalle Valo struct ieee80211_sta *sta, u32 iv32, 3974e705c121SKalle Valo u16 *phase1key) 3975e705c121SKalle Valo { 3976e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3977e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 39784883145aSEmmanuel Grumbach bool mfp = sta ? sta->mfp : false; 3979e705c121SKalle Valo 3980e705c121SKalle Valo rcu_read_lock(); 3981e705c121SKalle Valo 39825f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 39835f7a1847SJohannes Berg if (WARN_ON_ONCE(!mvm_sta)) 398412f17211SEmmanuel Grumbach goto unlock; 3985c8ee33e1SGregory Greenman iwl_mvm_send_sta_key(mvm, mvm_sta->deflink.sta_id, keyconf, mcast, 39864883145aSEmmanuel Grumbach iv32, phase1key, CMD_ASYNC, keyconf->hw_key_idx, 39874883145aSEmmanuel Grumbach mfp); 398812f17211SEmmanuel Grumbach 398912f17211SEmmanuel Grumbach unlock: 3990e705c121SKalle Valo rcu_read_unlock(); 3991e705c121SKalle Valo } 3992e705c121SKalle Valo 3993e705c121SKalle Valo void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, 3994e705c121SKalle Valo struct ieee80211_sta *sta) 3995e705c121SKalle Valo { 3996e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3997e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3998e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3999c8ee33e1SGregory Greenman .sta_id = mvmsta->deflink.sta_id, 4000e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_PS), 4001e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 4002e705c121SKalle Valo }; 4003e705c121SKalle Valo int ret; 4004e705c121SKalle Valo 4005854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 4006854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 4007e705c121SKalle Valo if (ret) 4008e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 4009e705c121SKalle Valo } 4010e705c121SKalle Valo 4011e705c121SKalle Valo void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, 4012e705c121SKalle Valo struct ieee80211_sta *sta, 4013e705c121SKalle Valo enum ieee80211_frame_release_type reason, 4014e705c121SKalle Valo u16 cnt, u16 tids, bool more_data, 40159a3fcf91SSara Sharon bool single_sta_queue) 4016e705c121SKalle Valo { 4017e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 4018e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 4019e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 4020c8ee33e1SGregory Greenman .sta_id = mvmsta->deflink.sta_id, 4021e705c121SKalle Valo .modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT, 4022e705c121SKalle Valo .sleep_tx_count = cpu_to_le16(cnt), 4023e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 4024e705c121SKalle Valo }; 4025e705c121SKalle Valo int tid, ret; 4026e705c121SKalle Valo unsigned long _tids = tids; 4027e705c121SKalle Valo 4028e705c121SKalle Valo /* convert TIDs to ACs - we don't support TSPEC so that's OK 4029e705c121SKalle Valo * Note that this field is reserved and unused by firmware not 4030e705c121SKalle Valo * supporting GO uAPSD, so it's safe to always do this. 4031e705c121SKalle Valo */ 4032e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) 4033e705c121SKalle Valo cmd.awake_acs |= BIT(tid_to_ucode_ac[tid]); 4034e705c121SKalle Valo 40359a3fcf91SSara Sharon /* If we're releasing frames from aggregation or dqa queues then check 40369a3fcf91SSara Sharon * if all the queues that we're releasing frames from, combined, have: 4037e705c121SKalle Valo * - more frames than the service period, in which case more_data 4038e705c121SKalle Valo * needs to be set 4039e705c121SKalle Valo * - fewer than 'cnt' frames, in which case we need to adjust the 4040e705c121SKalle Valo * firmware command (but do that unconditionally) 4041e705c121SKalle Valo */ 40429a3fcf91SSara Sharon if (single_sta_queue) { 4043e705c121SKalle Valo int remaining = cnt; 404436be0eb6SEmmanuel Grumbach int sleep_tx_count; 4045e705c121SKalle Valo 4046e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 4047e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) { 4048e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 4049e705c121SKalle Valo u16 n_queued; 4050e705c121SKalle Valo 4051e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 4052e705c121SKalle Valo 4053dd32162dSLiad Kaufman n_queued = iwl_mvm_tid_queued(mvm, tid_data); 4054e705c121SKalle Valo if (n_queued > remaining) { 4055e705c121SKalle Valo more_data = true; 4056e705c121SKalle Valo remaining = 0; 4057e705c121SKalle Valo break; 4058e705c121SKalle Valo } 4059e705c121SKalle Valo remaining -= n_queued; 4060e705c121SKalle Valo } 406136be0eb6SEmmanuel Grumbach sleep_tx_count = cnt - remaining; 406236be0eb6SEmmanuel Grumbach if (reason == IEEE80211_FRAME_RELEASE_UAPSD) 406336be0eb6SEmmanuel Grumbach mvmsta->sleep_tx_count = sleep_tx_count; 4064e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 4065e705c121SKalle Valo 406636be0eb6SEmmanuel Grumbach cmd.sleep_tx_count = cpu_to_le16(sleep_tx_count); 4067e705c121SKalle Valo if (WARN_ON(cnt - remaining == 0)) { 4068e705c121SKalle Valo ieee80211_sta_eosp(sta); 4069e705c121SKalle Valo return; 4070e705c121SKalle Valo } 4071e705c121SKalle Valo } 4072e705c121SKalle Valo 4073e705c121SKalle Valo /* Note: this is ignored by firmware not supporting GO uAPSD */ 4074e705c121SKalle Valo if (more_data) 4075ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_MOREDATA; 4076e705c121SKalle Valo 4077e705c121SKalle Valo if (reason == IEEE80211_FRAME_RELEASE_PSPOLL) { 4078e705c121SKalle Valo mvmsta->next_status_eosp = true; 4079ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_PS_POLL; 4080e705c121SKalle Valo } else { 4081ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_UAPSD; 4082e705c121SKalle Valo } 4083e705c121SKalle Valo 4084156f92f2SEmmanuel Grumbach /* block the Tx queues until the FW updated the sleep Tx count */ 4085156f92f2SEmmanuel Grumbach iwl_trans_block_txq_ptrs(mvm->trans, true); 4086156f92f2SEmmanuel Grumbach 4087156f92f2SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 4088156f92f2SEmmanuel Grumbach CMD_ASYNC | CMD_WANT_ASYNC_CALLBACK, 4089854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 4090e705c121SKalle Valo if (ret) 4091e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 4092e705c121SKalle Valo } 4093e705c121SKalle Valo 4094e705c121SKalle Valo void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm, 4095e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 4096e705c121SKalle Valo { 4097e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 4098e705c121SKalle Valo struct iwl_mvm_eosp_notification *notif = (void *)pkt->data; 4099e705c121SKalle Valo struct ieee80211_sta *sta; 4100e705c121SKalle Valo u32 sta_id = le32_to_cpu(notif->sta_id); 4101e705c121SKalle Valo 4102be9ae34eSNathan Errera if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 4103e705c121SKalle Valo return; 4104e705c121SKalle Valo 4105e705c121SKalle Valo rcu_read_lock(); 4106e705c121SKalle Valo sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 4107e705c121SKalle Valo if (!IS_ERR_OR_NULL(sta)) 4108e705c121SKalle Valo ieee80211_sta_eosp(sta); 4109e705c121SKalle Valo rcu_read_unlock(); 4110e705c121SKalle Valo } 4111e705c121SKalle Valo 4112e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm, 411356f4f12bSMiri Korenblit struct iwl_mvm_sta *mvmsta, 411456f4f12bSMiri Korenblit bool disable) 4115e705c121SKalle Valo { 4116e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 4117e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 4118c8ee33e1SGregory Greenman .sta_id = mvmsta->deflink.sta_id, 4119e705c121SKalle Valo .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 4120e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 4121e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 4122e705c121SKalle Valo }; 4123e705c121SKalle Valo int ret; 4124e705c121SKalle Valo 412556f4f12bSMiri Korenblit if (mvm->mld_api_is_used) { 412656f4f12bSMiri Korenblit iwl_mvm_mld_sta_modify_disable_tx(mvm, mvmsta, disable); 412756f4f12bSMiri Korenblit return; 412856f4f12bSMiri Korenblit } 412956f4f12bSMiri Korenblit 4130854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 4131854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 4132e705c121SKalle Valo if (ret) 4133e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 4134e705c121SKalle Valo } 4135e705c121SKalle Valo 4136e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm, 4137e705c121SKalle Valo struct ieee80211_sta *sta, 4138e705c121SKalle Valo bool disable) 4139e705c121SKalle Valo { 4140e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4141e705c121SKalle Valo 414256f4f12bSMiri Korenblit if (mvm->mld_api_is_used) { 414356f4f12bSMiri Korenblit iwl_mvm_mld_sta_modify_disable_tx_ap(mvm, sta, disable); 414456f4f12bSMiri Korenblit return; 414556f4f12bSMiri Korenblit } 414656f4f12bSMiri Korenblit 4147e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 4148e705c121SKalle Valo 4149e705c121SKalle Valo if (mvm_sta->disable_tx == disable) { 4150e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 4151e705c121SKalle Valo return; 4152e705c121SKalle Valo } 4153e705c121SKalle Valo 4154e705c121SKalle Valo mvm_sta->disable_tx = disable; 4155e705c121SKalle Valo 4156b1c6cec0SNaftali Goldstein /* 4157b1c6cec0SNaftali Goldstein * If sta PS state is handled by mac80211, tell it to start/stop 4158b1c6cec0SNaftali Goldstein * queuing tx for this station. 4159b1c6cec0SNaftali Goldstein */ 4160b1c6cec0SNaftali Goldstein if (!ieee80211_hw_check(mvm->hw, AP_LINK_PS)) 4161e705c121SKalle Valo ieee80211_sta_block_awake(mvm->hw, sta, disable); 4162e705c121SKalle Valo 4163e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvm_sta, disable); 4164e705c121SKalle Valo 4165e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 4166e705c121SKalle Valo } 4167e705c121SKalle Valo 4168ced19f26SSara Sharon static void iwl_mvm_int_sta_modify_disable_tx(struct iwl_mvm *mvm, 4169ced19f26SSara Sharon struct iwl_mvm_vif *mvmvif, 4170ced19f26SSara Sharon struct iwl_mvm_int_sta *sta, 4171ced19f26SSara Sharon bool disable) 4172ced19f26SSara Sharon { 4173ced19f26SSara Sharon u32 id = FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color); 4174ced19f26SSara Sharon struct iwl_mvm_add_sta_cmd cmd = { 4175ced19f26SSara Sharon .add_modify = STA_MODE_MODIFY, 4176ced19f26SSara Sharon .sta_id = sta->sta_id, 4177ced19f26SSara Sharon .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 4178ced19f26SSara Sharon .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 4179ced19f26SSara Sharon .mac_id_n_color = cpu_to_le32(id), 4180ced19f26SSara Sharon }; 4181ced19f26SSara Sharon int ret; 4182ced19f26SSara Sharon 4183e5d153ecSEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 4184ced19f26SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 4185ced19f26SSara Sharon if (ret) 4186ced19f26SSara Sharon IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 4187ced19f26SSara Sharon } 4188ced19f26SSara Sharon 4189e705c121SKalle Valo void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm, 4190e705c121SKalle Valo struct iwl_mvm_vif *mvmvif, 4191e705c121SKalle Valo bool disable) 4192e705c121SKalle Valo { 4193e705c121SKalle Valo struct ieee80211_sta *sta; 4194e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 4195e705c121SKalle Valo int i; 4196e705c121SKalle Valo 419756f4f12bSMiri Korenblit if (mvm->mld_api_is_used) { 419856f4f12bSMiri Korenblit iwl_mvm_mld_modify_all_sta_disable_tx(mvm, mvmvif, disable); 419956f4f12bSMiri Korenblit return; 420056f4f12bSMiri Korenblit } 420156f4f12bSMiri Korenblit 4202e5d153ecSEmmanuel Grumbach rcu_read_lock(); 4203e705c121SKalle Valo 4204e705c121SKalle Valo /* Block/unblock all the stations of the given mvmvif */ 4205be9ae34eSNathan Errera for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 4206e5d153ecSEmmanuel Grumbach sta = rcu_dereference(mvm->fw_id_to_mac_id[i]); 4207e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) 4208e705c121SKalle Valo continue; 4209e705c121SKalle Valo 4210e705c121SKalle Valo mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4211e705c121SKalle Valo if (mvm_sta->mac_id_n_color != 4212e705c121SKalle Valo FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)) 4213e705c121SKalle Valo continue; 4214e705c121SKalle Valo 4215e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx_ap(mvm, sta, disable); 4216e705c121SKalle Valo } 4217ced19f26SSara Sharon 4218e5d153ecSEmmanuel Grumbach rcu_read_unlock(); 4219e5d153ecSEmmanuel Grumbach 4220ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 4221ced19f26SSara Sharon return; 4222ced19f26SSara Sharon 4223ced19f26SSara Sharon /* Need to block/unblock also multicast station */ 4224650cadb7SGregory Greenman if (mvmvif->deflink.mcast_sta.sta_id != IWL_MVM_INVALID_STA) 4225ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 4226650cadb7SGregory Greenman &mvmvif->deflink.mcast_sta, 4227650cadb7SGregory Greenman disable); 4228ced19f26SSara Sharon 4229ced19f26SSara Sharon /* 4230ced19f26SSara Sharon * Only unblock the broadcast station (FW blocks it for immediate 4231ced19f26SSara Sharon * quiet, not the driver) 4232ced19f26SSara Sharon */ 4233650cadb7SGregory Greenman if (!disable && mvmvif->deflink.bcast_sta.sta_id != IWL_MVM_INVALID_STA) 4234ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 4235650cadb7SGregory Greenman &mvmvif->deflink.bcast_sta, 4236650cadb7SGregory Greenman disable); 4237e705c121SKalle Valo } 4238e705c121SKalle Valo 4239e705c121SKalle Valo void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4240e705c121SKalle Valo { 4241e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4242e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 4243e705c121SKalle Valo 4244e705c121SKalle Valo rcu_read_lock(); 4245e705c121SKalle Valo 4246650cadb7SGregory Greenman mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->deflink.ap_sta_id); 4247e705c121SKalle Valo 4248ad12b231SNathan Errera if (mvmsta) 4249e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true); 4250e705c121SKalle Valo 4251e705c121SKalle Valo rcu_read_unlock(); 4252e705c121SKalle Valo } 4253dd32162dSLiad Kaufman 4254dd32162dSLiad Kaufman u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data) 4255dd32162dSLiad Kaufman { 4256dd32162dSLiad Kaufman u16 sn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 4257dd32162dSLiad Kaufman 4258dd32162dSLiad Kaufman /* 42592f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 4260dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 4261dd32162dSLiad Kaufman */ 4262286ca8ebSLuca Coelho if (mvm->trans->trans_cfg->gen2) 4263dd32162dSLiad Kaufman sn &= 0xff; 4264dd32162dSLiad Kaufman 4265dd32162dSLiad Kaufman return ieee80211_sn_sub(sn, tid_data->next_reclaimed); 4266dd32162dSLiad Kaufman } 4267be82ecd3SAvraham Stern 4268be82ecd3SAvraham Stern int iwl_mvm_add_pasn_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 4269be82ecd3SAvraham Stern struct iwl_mvm_int_sta *sta, u8 *addr, u32 cipher, 4270be82ecd3SAvraham Stern u8 *key, u32 key_len) 4271be82ecd3SAvraham Stern { 4272be82ecd3SAvraham Stern int ret; 4273be82ecd3SAvraham Stern u16 queue; 4274be82ecd3SAvraham Stern struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4275be82ecd3SAvraham Stern struct ieee80211_key_conf *keyconf; 4276be82ecd3SAvraham Stern 4277be82ecd3SAvraham Stern ret = iwl_mvm_allocate_int_sta(mvm, sta, 0, 4278be82ecd3SAvraham Stern NL80211_IFTYPE_UNSPECIFIED, 4279be82ecd3SAvraham Stern IWL_STA_LINK); 4280be82ecd3SAvraham Stern if (ret) 4281be82ecd3SAvraham Stern return ret; 4282be82ecd3SAvraham Stern 4283be82ecd3SAvraham Stern ret = iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id, mvmvif->color, 4284be82ecd3SAvraham Stern addr, sta, &queue, 4285be82ecd3SAvraham Stern IWL_MVM_TX_FIFO_BE); 4286be82ecd3SAvraham Stern if (ret) 4287be82ecd3SAvraham Stern goto out; 4288be82ecd3SAvraham Stern 4289be82ecd3SAvraham Stern keyconf = kzalloc(sizeof(*keyconf) + key_len, GFP_KERNEL); 4290be82ecd3SAvraham Stern if (!keyconf) { 4291be82ecd3SAvraham Stern ret = -ENOBUFS; 4292be82ecd3SAvraham Stern goto out; 4293be82ecd3SAvraham Stern } 4294be82ecd3SAvraham Stern 4295be82ecd3SAvraham Stern keyconf->cipher = cipher; 4296be82ecd3SAvraham Stern memcpy(keyconf->key, key, key_len); 4297be82ecd3SAvraham Stern keyconf->keylen = key_len; 4298be82ecd3SAvraham Stern 4299be82ecd3SAvraham Stern ret = iwl_mvm_send_sta_key(mvm, sta->sta_id, keyconf, false, 4300be82ecd3SAvraham Stern 0, NULL, 0, 0, true); 4301be82ecd3SAvraham Stern kfree(keyconf); 4302be82ecd3SAvraham Stern return 0; 4303be82ecd3SAvraham Stern out: 4304be82ecd3SAvraham Stern iwl_mvm_dealloc_int_sta(mvm, sta); 4305be82ecd3SAvraham Stern return ret; 4306be82ecd3SAvraham Stern } 4307ad12b231SNathan Errera 4308ad12b231SNathan Errera void iwl_mvm_cancel_channel_switch(struct iwl_mvm *mvm, 4309ad12b231SNathan Errera struct ieee80211_vif *vif, 4310ad12b231SNathan Errera u32 mac_id) 4311ad12b231SNathan Errera { 4312ad12b231SNathan Errera struct iwl_cancel_channel_switch_cmd cancel_channel_switch_cmd = { 4313ad12b231SNathan Errera .mac_id = cpu_to_le32(mac_id), 4314ad12b231SNathan Errera }; 4315ad12b231SNathan Errera int ret; 4316ad12b231SNathan Errera 4317ad12b231SNathan Errera ret = iwl_mvm_send_cmd_pdu(mvm, 4318f0c86427SJohannes Berg WIDE_ID(MAC_CONF_GROUP, CANCEL_CHANNEL_SWITCH_CMD), 4319ad12b231SNathan Errera CMD_ASYNC, 4320ad12b231SNathan Errera sizeof(cancel_channel_switch_cmd), 4321ad12b231SNathan Errera &cancel_channel_switch_cmd); 4322ad12b231SNathan Errera if (ret) 4323ad12b231SNathan Errera IWL_ERR(mvm, "Failed to cancel the channel switch\n"); 4324ad12b231SNathan Errera } 4325