1e705c121SKalle Valo /****************************************************************************** 2e705c121SKalle Valo * 3e705c121SKalle Valo * This file is provided under a dual BSD/GPLv2 license. When using or 4e705c121SKalle Valo * redistributing this file, you may do so under either license. 5e705c121SKalle Valo * 6e705c121SKalle Valo * GPL LICENSE SUMMARY 7e705c121SKalle Valo * 8e705c121SKalle Valo * Copyright(c) 2012 - 2015 Intel Corporation. All rights reserved. 9e705c121SKalle Valo * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 1026d6c16bSSara Sharon * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 11e705c121SKalle Valo * 12e705c121SKalle Valo * This program is free software; you can redistribute it and/or modify 13e705c121SKalle Valo * it under the terms of version 2 of the GNU General Public License as 14e705c121SKalle Valo * published by the Free Software Foundation. 15e705c121SKalle Valo * 16e705c121SKalle Valo * This program is distributed in the hope that it will be useful, but 17e705c121SKalle Valo * WITHOUT ANY WARRANTY; without even the implied warranty of 18e705c121SKalle Valo * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19e705c121SKalle Valo * General Public License for more details. 20e705c121SKalle Valo * 21e705c121SKalle Valo * You should have received a copy of the GNU General Public License 22e705c121SKalle Valo * along with this program; if not, write to the Free Software 23e705c121SKalle Valo * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 24e705c121SKalle Valo * USA 25e705c121SKalle Valo * 26e705c121SKalle Valo * The full GNU General Public License is included in this distribution 27e705c121SKalle Valo * in the file called COPYING. 28e705c121SKalle Valo * 29e705c121SKalle Valo * Contact Information: 30cb2f8277SEmmanuel Grumbach * Intel Linux Wireless <linuxwifi@intel.com> 31e705c121SKalle Valo * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 32e705c121SKalle Valo * 33e705c121SKalle Valo * BSD LICENSE 34e705c121SKalle Valo * 35e705c121SKalle Valo * Copyright(c) 2012 - 2015 Intel Corporation. All rights reserved. 36e705c121SKalle Valo * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 3726d6c16bSSara Sharon * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 38e705c121SKalle Valo * All rights reserved. 39e705c121SKalle Valo * 40e705c121SKalle Valo * Redistribution and use in source and binary forms, with or without 41e705c121SKalle Valo * modification, are permitted provided that the following conditions 42e705c121SKalle Valo * are met: 43e705c121SKalle Valo * 44e705c121SKalle Valo * * Redistributions of source code must retain the above copyright 45e705c121SKalle Valo * notice, this list of conditions and the following disclaimer. 46e705c121SKalle Valo * * Redistributions in binary form must reproduce the above copyright 47e705c121SKalle Valo * notice, this list of conditions and the following disclaimer in 48e705c121SKalle Valo * the documentation and/or other materials provided with the 49e705c121SKalle Valo * distribution. 50e705c121SKalle Valo * * Neither the name Intel Corporation nor the names of its 51e705c121SKalle Valo * contributors may be used to endorse or promote products derived 52e705c121SKalle Valo * from this software without specific prior written permission. 53e705c121SKalle Valo * 54e705c121SKalle Valo * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 55e705c121SKalle Valo * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 56e705c121SKalle Valo * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 57e705c121SKalle Valo * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 58e705c121SKalle Valo * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 59e705c121SKalle Valo * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 60e705c121SKalle Valo * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 61e705c121SKalle Valo * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 62e705c121SKalle Valo * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 63e705c121SKalle Valo * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 64e705c121SKalle Valo * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 65e705c121SKalle Valo * 66e705c121SKalle Valo *****************************************************************************/ 67e705c121SKalle Valo #include <net/mac80211.h> 68e705c121SKalle Valo 69e705c121SKalle Valo #include "mvm.h" 70e705c121SKalle Valo #include "sta.h" 71e705c121SKalle Valo #include "rs.h" 72e705c121SKalle Valo 73854c5705SSara Sharon /* 74854c5705SSara Sharon * New version of ADD_STA_sta command added new fields at the end of the 75854c5705SSara Sharon * structure, so sending the size of the relevant API's structure is enough to 76854c5705SSara Sharon * support both API versions. 77854c5705SSara Sharon */ 78854c5705SSara Sharon static inline int iwl_mvm_add_sta_cmd_size(struct iwl_mvm *mvm) 79854c5705SSara Sharon { 80ced19f26SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) || 81ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 82ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd); 83ced19f26SSara Sharon else 84ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd_v7); 85854c5705SSara Sharon } 86854c5705SSara Sharon 87e705c121SKalle Valo static int iwl_mvm_find_free_sta_id(struct iwl_mvm *mvm, 88e705c121SKalle Valo enum nl80211_iftype iftype) 89e705c121SKalle Valo { 90e705c121SKalle Valo int sta_id; 91e705c121SKalle Valo u32 reserved_ids = 0; 92e705c121SKalle Valo 93e705c121SKalle Valo BUILD_BUG_ON(IWL_MVM_STATION_COUNT > 32); 94e705c121SKalle Valo WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)); 95e705c121SKalle Valo 96e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 97e705c121SKalle Valo 98e705c121SKalle Valo /* d0i3/d3 assumes the AP's sta_id (of sta vif) is 0. reserve it. */ 99e705c121SKalle Valo if (iftype != NL80211_IFTYPE_STATION) 100e705c121SKalle Valo reserved_ids = BIT(0); 101e705c121SKalle Valo 102e705c121SKalle Valo /* Don't take rcu_read_lock() since we are protected by mvm->mutex */ 1030ae98812SSara Sharon for (sta_id = 0; sta_id < ARRAY_SIZE(mvm->fw_id_to_mac_id); sta_id++) { 104e705c121SKalle Valo if (BIT(sta_id) & reserved_ids) 105e705c121SKalle Valo continue; 106e705c121SKalle Valo 107e705c121SKalle Valo if (!rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 108e705c121SKalle Valo lockdep_is_held(&mvm->mutex))) 109e705c121SKalle Valo return sta_id; 110e705c121SKalle Valo } 1110ae98812SSara Sharon return IWL_MVM_INVALID_STA; 112e705c121SKalle Valo } 113e705c121SKalle Valo 114e705c121SKalle Valo /* send station add/update command to firmware */ 115e705c121SKalle Valo int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 11624afba76SLiad Kaufman bool update, unsigned int flags) 117e705c121SKalle Valo { 118e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 119e705c121SKalle Valo struct iwl_mvm_add_sta_cmd add_sta_cmd = { 120e705c121SKalle Valo .sta_id = mvm_sta->sta_id, 121e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color), 122e705c121SKalle Valo .add_modify = update ? 1 : 0, 123e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_FAT_EN_MSK | 1248addabf8SNaftali Goldstein STA_FLG_MIMO_EN_MSK | 1258addabf8SNaftali Goldstein STA_FLG_RTS_MIMO_PROT), 126cf0cda19SLiad Kaufman .tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg), 127e705c121SKalle Valo }; 128e705c121SKalle Valo int ret; 129e705c121SKalle Valo u32 status; 130e705c121SKalle Valo u32 agg_size = 0, mpdu_dens = 0; 131e705c121SKalle Valo 132ced19f26SSara Sharon if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 133ced19f26SSara Sharon add_sta_cmd.station_type = mvm_sta->sta_type; 134ced19f26SSara Sharon 13524afba76SLiad Kaufman if (!update || (flags & STA_MODIFY_QUEUES)) { 136e705c121SKalle Valo memcpy(&add_sta_cmd.addr, sta->addr, ETH_ALEN); 13724afba76SLiad Kaufman 138bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) { 139bb49701bSSara Sharon add_sta_cmd.tfd_queue_msk = 140bb49701bSSara Sharon cpu_to_le32(mvm_sta->tfd_queue_msk); 141bb49701bSSara Sharon 14224afba76SLiad Kaufman if (flags & STA_MODIFY_QUEUES) 14324afba76SLiad Kaufman add_sta_cmd.modify_mask |= STA_MODIFY_QUEUES; 144bb49701bSSara Sharon } else { 145bb49701bSSara Sharon WARN_ON(flags & STA_MODIFY_QUEUES); 146bb49701bSSara Sharon } 147e705c121SKalle Valo } 148e705c121SKalle Valo 149e705c121SKalle Valo switch (sta->bandwidth) { 150e705c121SKalle Valo case IEEE80211_STA_RX_BW_160: 151e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_160MHZ); 152e705c121SKalle Valo /* fall through */ 153e705c121SKalle Valo case IEEE80211_STA_RX_BW_80: 154e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_80MHZ); 155e705c121SKalle Valo /* fall through */ 156e705c121SKalle Valo case IEEE80211_STA_RX_BW_40: 157e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_40MHZ); 158e705c121SKalle Valo /* fall through */ 159e705c121SKalle Valo case IEEE80211_STA_RX_BW_20: 160e705c121SKalle Valo if (sta->ht_cap.ht_supported) 161e705c121SKalle Valo add_sta_cmd.station_flags |= 162e705c121SKalle Valo cpu_to_le32(STA_FLG_FAT_EN_20MHZ); 163e705c121SKalle Valo break; 164e705c121SKalle Valo } 165e705c121SKalle Valo 166e705c121SKalle Valo switch (sta->rx_nss) { 167e705c121SKalle Valo case 1: 168e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 169e705c121SKalle Valo break; 170e705c121SKalle Valo case 2: 171e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO2); 172e705c121SKalle Valo break; 173e705c121SKalle Valo case 3 ... 8: 174e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO3); 175e705c121SKalle Valo break; 176e705c121SKalle Valo } 177e705c121SKalle Valo 178e705c121SKalle Valo switch (sta->smps_mode) { 179e705c121SKalle Valo case IEEE80211_SMPS_AUTOMATIC: 180e705c121SKalle Valo case IEEE80211_SMPS_NUM_MODES: 181e705c121SKalle Valo WARN_ON(1); 182e705c121SKalle Valo break; 183e705c121SKalle Valo case IEEE80211_SMPS_STATIC: 184e705c121SKalle Valo /* override NSS */ 185e705c121SKalle Valo add_sta_cmd.station_flags &= ~cpu_to_le32(STA_FLG_MIMO_EN_MSK); 186e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 187e705c121SKalle Valo break; 188e705c121SKalle Valo case IEEE80211_SMPS_DYNAMIC: 189e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_RTS_MIMO_PROT); 190e705c121SKalle Valo break; 191e705c121SKalle Valo case IEEE80211_SMPS_OFF: 192e705c121SKalle Valo /* nothing */ 193e705c121SKalle Valo break; 194e705c121SKalle Valo } 195e705c121SKalle Valo 196e705c121SKalle Valo if (sta->ht_cap.ht_supported) { 197e705c121SKalle Valo add_sta_cmd.station_flags_msk |= 198e705c121SKalle Valo cpu_to_le32(STA_FLG_MAX_AGG_SIZE_MSK | 199e705c121SKalle Valo STA_FLG_AGG_MPDU_DENS_MSK); 200e705c121SKalle Valo 201e705c121SKalle Valo mpdu_dens = sta->ht_cap.ampdu_density; 202e705c121SKalle Valo } 203e705c121SKalle Valo 204e705c121SKalle Valo if (sta->vht_cap.vht_supported) { 205e705c121SKalle Valo agg_size = sta->vht_cap.cap & 206e705c121SKalle Valo IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; 207e705c121SKalle Valo agg_size >>= 208e705c121SKalle Valo IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; 209e705c121SKalle Valo } else if (sta->ht_cap.ht_supported) { 210e705c121SKalle Valo agg_size = sta->ht_cap.ampdu_factor; 211e705c121SKalle Valo } 212e705c121SKalle Valo 213e705c121SKalle Valo add_sta_cmd.station_flags |= 214e705c121SKalle Valo cpu_to_le32(agg_size << STA_FLG_MAX_AGG_SIZE_SHIFT); 215e705c121SKalle Valo add_sta_cmd.station_flags |= 216e705c121SKalle Valo cpu_to_le32(mpdu_dens << STA_FLG_AGG_MPDU_DENS_SHIFT); 2176ea29ce5SJohannes Berg if (mvm_sta->associated) 21819c52f46SEmmanuel Grumbach add_sta_cmd.assoc_id = cpu_to_le16(sta->aid); 219e705c121SKalle Valo 22065e25482SJohannes Berg if (sta->wme) { 22165e25482SJohannes Berg add_sta_cmd.modify_mask |= STA_MODIFY_UAPSD_ACS; 22265e25482SJohannes Berg 22365e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK) 224c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_BK); 22565e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE) 226c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_BE); 22765e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI) 228c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_VI); 22965e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) 230c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_VO); 231c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= add_sta_cmd.uapsd_acs << 4; 232e71ca5eaSEmmanuel Grumbach add_sta_cmd.sp_length = sta->max_sp ? sta->max_sp * 2 : 128; 23365e25482SJohannes Berg } 23465e25482SJohannes Berg 235e705c121SKalle Valo status = ADD_STA_SUCCESS; 236854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 237854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 238e705c121SKalle Valo &add_sta_cmd, &status); 239e705c121SKalle Valo if (ret) 240e705c121SKalle Valo return ret; 241e705c121SKalle Valo 242837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 243e705c121SKalle Valo case ADD_STA_SUCCESS: 244e705c121SKalle Valo IWL_DEBUG_ASSOC(mvm, "ADD_STA PASSED\n"); 245e705c121SKalle Valo break; 246e705c121SKalle Valo default: 247e705c121SKalle Valo ret = -EIO; 248e705c121SKalle Valo IWL_ERR(mvm, "ADD_STA failed\n"); 249e705c121SKalle Valo break; 250e705c121SKalle Valo } 251e705c121SKalle Valo 252e705c121SKalle Valo return ret; 253e705c121SKalle Valo } 254e705c121SKalle Valo 25510b2b201SSara Sharon static void iwl_mvm_rx_agg_session_expired(unsigned long data) 25610b2b201SSara Sharon { 25710b2b201SSara Sharon struct iwl_mvm_baid_data __rcu **rcu_ptr = (void *)data; 25810b2b201SSara Sharon struct iwl_mvm_baid_data *ba_data; 25910b2b201SSara Sharon struct ieee80211_sta *sta; 26010b2b201SSara Sharon struct iwl_mvm_sta *mvm_sta; 26110b2b201SSara Sharon unsigned long timeout; 26210b2b201SSara Sharon 26310b2b201SSara Sharon rcu_read_lock(); 26410b2b201SSara Sharon 26510b2b201SSara Sharon ba_data = rcu_dereference(*rcu_ptr); 26610b2b201SSara Sharon 26710b2b201SSara Sharon if (WARN_ON(!ba_data)) 26810b2b201SSara Sharon goto unlock; 26910b2b201SSara Sharon 27010b2b201SSara Sharon if (!ba_data->timeout) 27110b2b201SSara Sharon goto unlock; 27210b2b201SSara Sharon 27310b2b201SSara Sharon timeout = ba_data->last_rx + TU_TO_JIFFIES(ba_data->timeout * 2); 27410b2b201SSara Sharon if (time_is_after_jiffies(timeout)) { 27510b2b201SSara Sharon mod_timer(&ba_data->session_timer, timeout); 27610b2b201SSara Sharon goto unlock; 27710b2b201SSara Sharon } 27810b2b201SSara Sharon 27910b2b201SSara Sharon /* Timer expired */ 28010b2b201SSara Sharon sta = rcu_dereference(ba_data->mvm->fw_id_to_mac_id[ba_data->sta_id]); 28161dd8a8aSEmmanuel Grumbach 28261dd8a8aSEmmanuel Grumbach /* 28361dd8a8aSEmmanuel Grumbach * sta should be valid unless the following happens: 28461dd8a8aSEmmanuel Grumbach * The firmware asserts which triggers a reconfig flow, but 28561dd8a8aSEmmanuel Grumbach * the reconfig fails before we set the pointer to sta into 28661dd8a8aSEmmanuel Grumbach * the fw_id_to_mac_id pointer table. Mac80211 can't stop 28761dd8a8aSEmmanuel Grumbach * A-MDPU and hence the timer continues to run. Then, the 28861dd8a8aSEmmanuel Grumbach * timer expires and sta is NULL. 28961dd8a8aSEmmanuel Grumbach */ 29061dd8a8aSEmmanuel Grumbach if (!sta) 29161dd8a8aSEmmanuel Grumbach goto unlock; 29261dd8a8aSEmmanuel Grumbach 29310b2b201SSara Sharon mvm_sta = iwl_mvm_sta_from_mac80211(sta); 29420fc690fSNaftali Goldstein ieee80211_rx_ba_timer_expired(mvm_sta->vif, 29510b2b201SSara Sharon sta->addr, ba_data->tid); 29610b2b201SSara Sharon unlock: 29710b2b201SSara Sharon rcu_read_unlock(); 29810b2b201SSara Sharon } 29910b2b201SSara Sharon 3009794c64fSLiad Kaufman /* Disable aggregations for a bitmap of TIDs for a given station */ 3019794c64fSLiad Kaufman static int iwl_mvm_invalidate_sta_queue(struct iwl_mvm *mvm, int queue, 3029794c64fSLiad Kaufman unsigned long disable_agg_tids, 3039794c64fSLiad Kaufman bool remove_queue) 3049794c64fSLiad Kaufman { 3059794c64fSLiad Kaufman struct iwl_mvm_add_sta_cmd cmd = {}; 3069794c64fSLiad Kaufman struct ieee80211_sta *sta; 3079794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 3089794c64fSLiad Kaufman u32 status; 3099794c64fSLiad Kaufman u8 sta_id; 3109794c64fSLiad Kaufman int ret; 3119794c64fSLiad Kaufman 312bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 313bb49701bSSara Sharon return -EINVAL; 314bb49701bSSara Sharon 3159794c64fSLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 3169794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 3179794c64fSLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 3189794c64fSLiad Kaufman 3199794c64fSLiad Kaufman rcu_read_lock(); 3209794c64fSLiad Kaufman 3219794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 3229794c64fSLiad Kaufman 3239794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 3249794c64fSLiad Kaufman rcu_read_unlock(); 3259794c64fSLiad Kaufman return -EINVAL; 3269794c64fSLiad Kaufman } 3279794c64fSLiad Kaufman 3289794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 3299794c64fSLiad Kaufman 3309794c64fSLiad Kaufman mvmsta->tid_disable_agg |= disable_agg_tids; 3319794c64fSLiad Kaufman 3329794c64fSLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 3339794c64fSLiad Kaufman cmd.sta_id = mvmsta->sta_id; 3349794c64fSLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 3359794c64fSLiad Kaufman cmd.modify_mask = STA_MODIFY_QUEUES; 3369794c64fSLiad Kaufman if (disable_agg_tids) 3379794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 3389794c64fSLiad Kaufman if (remove_queue) 3399794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_QUEUE_REMOVAL; 3409794c64fSLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 3419794c64fSLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 3429794c64fSLiad Kaufman 3439794c64fSLiad Kaufman rcu_read_unlock(); 3449794c64fSLiad Kaufman 3459794c64fSLiad Kaufman /* Notify FW of queue removal from the STA queues */ 3469794c64fSLiad Kaufman status = ADD_STA_SUCCESS; 3479794c64fSLiad Kaufman ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 3489794c64fSLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), 3499794c64fSLiad Kaufman &cmd, &status); 3509794c64fSLiad Kaufman 3519794c64fSLiad Kaufman return ret; 3529794c64fSLiad Kaufman } 3539794c64fSLiad Kaufman 35442db09c1SLiad Kaufman static int iwl_mvm_get_queue_agg_tids(struct iwl_mvm *mvm, int queue) 35542db09c1SLiad Kaufman { 35642db09c1SLiad Kaufman struct ieee80211_sta *sta; 35742db09c1SLiad Kaufman struct iwl_mvm_sta *mvmsta; 35842db09c1SLiad Kaufman unsigned long tid_bitmap; 35942db09c1SLiad Kaufman unsigned long agg_tids = 0; 360806911daSSharon Dvir u8 sta_id; 36142db09c1SLiad Kaufman int tid; 36242db09c1SLiad Kaufman 36342db09c1SLiad Kaufman lockdep_assert_held(&mvm->mutex); 36442db09c1SLiad Kaufman 365bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 366bb49701bSSara Sharon return -EINVAL; 367bb49701bSSara Sharon 36842db09c1SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 36942db09c1SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 37042db09c1SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 37142db09c1SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 37242db09c1SLiad Kaufman 37342db09c1SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 37442db09c1SLiad Kaufman lockdep_is_held(&mvm->mutex)); 37542db09c1SLiad Kaufman 37642db09c1SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 37742db09c1SLiad Kaufman return -EINVAL; 37842db09c1SLiad Kaufman 37942db09c1SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 38042db09c1SLiad Kaufman 38142db09c1SLiad Kaufman spin_lock_bh(&mvmsta->lock); 38242db09c1SLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 38342db09c1SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 38442db09c1SLiad Kaufman agg_tids |= BIT(tid); 38542db09c1SLiad Kaufman } 38642db09c1SLiad Kaufman spin_unlock_bh(&mvmsta->lock); 38742db09c1SLiad Kaufman 38842db09c1SLiad Kaufman return agg_tids; 38942db09c1SLiad Kaufman } 39042db09c1SLiad Kaufman 3919794c64fSLiad Kaufman /* 3929794c64fSLiad Kaufman * Remove a queue from a station's resources. 3939794c64fSLiad Kaufman * Note that this only marks as free. It DOESN'T delete a BA agreement, and 3949794c64fSLiad Kaufman * doesn't disable the queue 3959794c64fSLiad Kaufman */ 3969794c64fSLiad Kaufman static int iwl_mvm_remove_sta_queue_marking(struct iwl_mvm *mvm, int queue) 3979794c64fSLiad Kaufman { 3989794c64fSLiad Kaufman struct ieee80211_sta *sta; 3999794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 4009794c64fSLiad Kaufman unsigned long tid_bitmap; 4019794c64fSLiad Kaufman unsigned long disable_agg_tids = 0; 4029794c64fSLiad Kaufman u8 sta_id; 4039794c64fSLiad Kaufman int tid; 4049794c64fSLiad Kaufman 4059794c64fSLiad Kaufman lockdep_assert_held(&mvm->mutex); 4069794c64fSLiad Kaufman 407bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 408bb49701bSSara Sharon return -EINVAL; 409bb49701bSSara Sharon 4109794c64fSLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 4119794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 4129794c64fSLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 4139794c64fSLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 4149794c64fSLiad Kaufman 4159794c64fSLiad Kaufman rcu_read_lock(); 4169794c64fSLiad Kaufman 4179794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 4189794c64fSLiad Kaufman 4199794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 4209794c64fSLiad Kaufman rcu_read_unlock(); 4219794c64fSLiad Kaufman return 0; 4229794c64fSLiad Kaufman } 4239794c64fSLiad Kaufman 4249794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 4259794c64fSLiad Kaufman 4269794c64fSLiad Kaufman spin_lock_bh(&mvmsta->lock); 42742db09c1SLiad Kaufman /* Unmap MAC queues and TIDs from this queue */ 4289794c64fSLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 4299794c64fSLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 4309794c64fSLiad Kaufman disable_agg_tids |= BIT(tid); 4316862fceeSSara Sharon mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 4329794c64fSLiad Kaufman } 4339794c64fSLiad Kaufman 43442db09c1SLiad Kaufman mvmsta->tfd_queue_msk &= ~BIT(queue); /* Don't use this queue anymore */ 4359794c64fSLiad Kaufman spin_unlock_bh(&mvmsta->lock); 4369794c64fSLiad Kaufman 4379794c64fSLiad Kaufman rcu_read_unlock(); 4389794c64fSLiad Kaufman 4399794c64fSLiad Kaufman return disable_agg_tids; 4409794c64fSLiad Kaufman } 4419794c64fSLiad Kaufman 44201796ff2SSara Sharon static int iwl_mvm_free_inactive_queue(struct iwl_mvm *mvm, int queue, 44301796ff2SSara Sharon bool same_sta) 44401796ff2SSara Sharon { 44501796ff2SSara Sharon struct iwl_mvm_sta *mvmsta; 44601796ff2SSara Sharon u8 txq_curr_ac, sta_id, tid; 44701796ff2SSara Sharon unsigned long disable_agg_tids = 0; 44801796ff2SSara Sharon int ret; 44901796ff2SSara Sharon 45001796ff2SSara Sharon lockdep_assert_held(&mvm->mutex); 45101796ff2SSara Sharon 452bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 453bb49701bSSara Sharon return -EINVAL; 454bb49701bSSara Sharon 45501796ff2SSara Sharon spin_lock_bh(&mvm->queue_info_lock); 45601796ff2SSara Sharon txq_curr_ac = mvm->queue_info[queue].mac80211_ac; 45701796ff2SSara Sharon sta_id = mvm->queue_info[queue].ra_sta_id; 45801796ff2SSara Sharon tid = mvm->queue_info[queue].txq_tid; 45901796ff2SSara Sharon spin_unlock_bh(&mvm->queue_info_lock); 46001796ff2SSara Sharon 46101796ff2SSara Sharon mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 462e3df1e4bSSharon Dvir if (WARN_ON(!mvmsta)) 463e3df1e4bSSharon Dvir return -EINVAL; 46401796ff2SSara Sharon 46501796ff2SSara Sharon disable_agg_tids = iwl_mvm_remove_sta_queue_marking(mvm, queue); 46601796ff2SSara Sharon /* Disable the queue */ 46701796ff2SSara Sharon if (disable_agg_tids) 46801796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 46901796ff2SSara Sharon disable_agg_tids, false); 47001796ff2SSara Sharon 47101796ff2SSara Sharon ret = iwl_mvm_disable_txq(mvm, queue, 47201796ff2SSara Sharon mvmsta->vif->hw_queue[txq_curr_ac], 47301796ff2SSara Sharon tid, 0); 47401796ff2SSara Sharon if (ret) { 47501796ff2SSara Sharon /* Re-mark the inactive queue as inactive */ 47601796ff2SSara Sharon spin_lock_bh(&mvm->queue_info_lock); 47701796ff2SSara Sharon mvm->queue_info[queue].status = IWL_MVM_QUEUE_INACTIVE; 47801796ff2SSara Sharon spin_unlock_bh(&mvm->queue_info_lock); 47901796ff2SSara Sharon IWL_ERR(mvm, 48001796ff2SSara Sharon "Failed to free inactive queue %d (ret=%d)\n", 48101796ff2SSara Sharon queue, ret); 48201796ff2SSara Sharon 48301796ff2SSara Sharon return ret; 48401796ff2SSara Sharon } 48501796ff2SSara Sharon 48601796ff2SSara Sharon /* If TXQ is allocated to another STA, update removal in FW */ 48701796ff2SSara Sharon if (!same_sta) 48801796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 0, true); 48901796ff2SSara Sharon 49001796ff2SSara Sharon return 0; 49101796ff2SSara Sharon } 49201796ff2SSara Sharon 49342db09c1SLiad Kaufman static int iwl_mvm_get_shared_queue(struct iwl_mvm *mvm, 49442db09c1SLiad Kaufman unsigned long tfd_queue_mask, u8 ac) 49542db09c1SLiad Kaufman { 49642db09c1SLiad Kaufman int queue = 0; 49742db09c1SLiad Kaufman u8 ac_to_queue[IEEE80211_NUM_ACS]; 49842db09c1SLiad Kaufman int i; 49942db09c1SLiad Kaufman 50042db09c1SLiad Kaufman lockdep_assert_held(&mvm->queue_info_lock); 501bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 502bb49701bSSara Sharon return -EINVAL; 50342db09c1SLiad Kaufman 50442db09c1SLiad Kaufman memset(&ac_to_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(ac_to_queue)); 50542db09c1SLiad Kaufman 50642db09c1SLiad Kaufman /* See what ACs the existing queues for this STA have */ 50742db09c1SLiad Kaufman for_each_set_bit(i, &tfd_queue_mask, IWL_MVM_DQA_MAX_DATA_QUEUE) { 50842db09c1SLiad Kaufman /* Only DATA queues can be shared */ 50942db09c1SLiad Kaufman if (i < IWL_MVM_DQA_MIN_DATA_QUEUE && 51042db09c1SLiad Kaufman i != IWL_MVM_DQA_BSS_CLIENT_QUEUE) 51142db09c1SLiad Kaufman continue; 51242db09c1SLiad Kaufman 5139f9af3d7SLiad Kaufman /* Don't try and take queues being reconfigured */ 5149f9af3d7SLiad Kaufman if (mvm->queue_info[queue].status == 5159f9af3d7SLiad Kaufman IWL_MVM_QUEUE_RECONFIGURING) 5169f9af3d7SLiad Kaufman continue; 5179f9af3d7SLiad Kaufman 51842db09c1SLiad Kaufman ac_to_queue[mvm->queue_info[i].mac80211_ac] = i; 51942db09c1SLiad Kaufman } 52042db09c1SLiad Kaufman 52142db09c1SLiad Kaufman /* 52242db09c1SLiad Kaufman * The queue to share is chosen only from DATA queues as follows (in 52342db09c1SLiad Kaufman * descending priority): 52442db09c1SLiad Kaufman * 1. An AC_BE queue 52542db09c1SLiad Kaufman * 2. Same AC queue 52642db09c1SLiad Kaufman * 3. Highest AC queue that is lower than new AC 52742db09c1SLiad Kaufman * 4. Any existing AC (there always is at least 1 DATA queue) 52842db09c1SLiad Kaufman */ 52942db09c1SLiad Kaufman 53042db09c1SLiad Kaufman /* Priority 1: An AC_BE queue */ 53142db09c1SLiad Kaufman if (ac_to_queue[IEEE80211_AC_BE] != IEEE80211_INVAL_HW_QUEUE) 53242db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BE]; 53342db09c1SLiad Kaufman /* Priority 2: Same AC queue */ 53442db09c1SLiad Kaufman else if (ac_to_queue[ac] != IEEE80211_INVAL_HW_QUEUE) 53542db09c1SLiad Kaufman queue = ac_to_queue[ac]; 53642db09c1SLiad Kaufman /* Priority 3a: If new AC is VO and VI exists - use VI */ 53742db09c1SLiad Kaufman else if (ac == IEEE80211_AC_VO && 53842db09c1SLiad Kaufman ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 53942db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 54042db09c1SLiad Kaufman /* Priority 3b: No BE so only AC less than the new one is BK */ 54142db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_BK] != IEEE80211_INVAL_HW_QUEUE) 54242db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BK]; 54342db09c1SLiad Kaufman /* Priority 4a: No BE nor BK - use VI if exists */ 54442db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 54542db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 54642db09c1SLiad Kaufman /* Priority 4b: No BE, BK nor VI - use VO if exists */ 54742db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VO] != IEEE80211_INVAL_HW_QUEUE) 54842db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VO]; 54942db09c1SLiad Kaufman 55042db09c1SLiad Kaufman /* Make sure queue found (or not) is legal */ 5519f9af3d7SLiad Kaufman if (!iwl_mvm_is_dqa_data_queue(mvm, queue) && 5529f9af3d7SLiad Kaufman !iwl_mvm_is_dqa_mgmt_queue(mvm, queue) && 5539f9af3d7SLiad Kaufman (queue != IWL_MVM_DQA_BSS_CLIENT_QUEUE)) { 55442db09c1SLiad Kaufman IWL_ERR(mvm, "No DATA queues available to share\n"); 5559f9af3d7SLiad Kaufman return -ENOSPC; 5569f9af3d7SLiad Kaufman } 5579f9af3d7SLiad Kaufman 5589f9af3d7SLiad Kaufman /* Make sure the queue isn't in the middle of being reconfigured */ 5599f9af3d7SLiad Kaufman if (mvm->queue_info[queue].status == IWL_MVM_QUEUE_RECONFIGURING) { 5609f9af3d7SLiad Kaufman IWL_ERR(mvm, 5619f9af3d7SLiad Kaufman "TXQ %d is in the middle of re-config - try again\n", 5629f9af3d7SLiad Kaufman queue); 5639f9af3d7SLiad Kaufman return -EBUSY; 56442db09c1SLiad Kaufman } 56542db09c1SLiad Kaufman 56642db09c1SLiad Kaufman return queue; 56742db09c1SLiad Kaufman } 56842db09c1SLiad Kaufman 56958f2cc57SLiad Kaufman /* 5709f9af3d7SLiad Kaufman * If a given queue has a higher AC than the TID stream that is being compared 5719f9af3d7SLiad Kaufman * to, the queue needs to be redirected to the lower AC. This function does that 57258f2cc57SLiad Kaufman * in such a case, otherwise - if no redirection required - it does nothing, 57358f2cc57SLiad Kaufman * unless the %force param is true. 57458f2cc57SLiad Kaufman */ 5759f9af3d7SLiad Kaufman int iwl_mvm_scd_queue_redirect(struct iwl_mvm *mvm, int queue, int tid, 57658f2cc57SLiad Kaufman int ac, int ssn, unsigned int wdg_timeout, 57758f2cc57SLiad Kaufman bool force) 57858f2cc57SLiad Kaufman { 57958f2cc57SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 58058f2cc57SLiad Kaufman .scd_queue = queue, 581f7c692deSLiad Kaufman .action = SCD_CFG_DISABLE_QUEUE, 58258f2cc57SLiad Kaufman }; 58358f2cc57SLiad Kaufman bool shared_queue; 58458f2cc57SLiad Kaufman unsigned long mq; 58558f2cc57SLiad Kaufman int ret; 58658f2cc57SLiad Kaufman 587bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 588bb49701bSSara Sharon return -EINVAL; 589bb49701bSSara Sharon 59058f2cc57SLiad Kaufman /* 59158f2cc57SLiad Kaufman * If the AC is lower than current one - FIFO needs to be redirected to 59258f2cc57SLiad Kaufman * the lowest one of the streams in the queue. Check if this is needed 59358f2cc57SLiad Kaufman * here. 59458f2cc57SLiad Kaufman * Notice that the enum ieee80211_ac_numbers is "flipped", so BK is with 59558f2cc57SLiad Kaufman * value 3 and VO with value 0, so to check if ac X is lower than ac Y 59658f2cc57SLiad Kaufman * we need to check if the numerical value of X is LARGER than of Y. 59758f2cc57SLiad Kaufman */ 59858f2cc57SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 59958f2cc57SLiad Kaufman if (ac <= mvm->queue_info[queue].mac80211_ac && !force) { 60058f2cc57SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 60158f2cc57SLiad Kaufman 60258f2cc57SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 60358f2cc57SLiad Kaufman "No redirection needed on TXQ #%d\n", 60458f2cc57SLiad Kaufman queue); 60558f2cc57SLiad Kaufman return 0; 60658f2cc57SLiad Kaufman } 60758f2cc57SLiad Kaufman 60858f2cc57SLiad Kaufman cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 60958f2cc57SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[mvm->queue_info[queue].mac80211_ac]; 610edbe961cSLiad Kaufman cmd.tid = mvm->queue_info[queue].txq_tid; 61134e10860SSara Sharon mq = mvm->hw_queue_to_mac80211[queue]; 61258f2cc57SLiad Kaufman shared_queue = (mvm->queue_info[queue].hw_queue_refcount > 1); 61358f2cc57SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 61458f2cc57SLiad Kaufman 6159f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Redirecting TXQ #%d to FIFO #%d\n", 61658f2cc57SLiad Kaufman queue, iwl_mvm_ac_to_tx_fifo[ac]); 61758f2cc57SLiad Kaufman 61858f2cc57SLiad Kaufman /* Stop MAC queues and wait for this queue to empty */ 61958f2cc57SLiad Kaufman iwl_mvm_stop_mac_queues(mvm, mq); 620a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(queue)); 62158f2cc57SLiad Kaufman if (ret) { 62258f2cc57SLiad Kaufman IWL_ERR(mvm, "Error draining queue %d before reconfig\n", 62358f2cc57SLiad Kaufman queue); 62458f2cc57SLiad Kaufman ret = -EIO; 62558f2cc57SLiad Kaufman goto out; 62658f2cc57SLiad Kaufman } 62758f2cc57SLiad Kaufman 62858f2cc57SLiad Kaufman /* Before redirecting the queue we need to de-activate it */ 62958f2cc57SLiad Kaufman iwl_trans_txq_disable(mvm->trans, queue, false); 63058f2cc57SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 63158f2cc57SLiad Kaufman if (ret) 63258f2cc57SLiad Kaufman IWL_ERR(mvm, "Failed SCD disable TXQ %d (ret=%d)\n", queue, 63358f2cc57SLiad Kaufman ret); 63458f2cc57SLiad Kaufman 63558f2cc57SLiad Kaufman /* Make sure the SCD wrptr is correctly set before reconfiguring */ 636ca3b9c6bSSara Sharon iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, wdg_timeout); 63758f2cc57SLiad Kaufman 638edbe961cSLiad Kaufman /* Update the TID "owner" of the queue */ 639edbe961cSLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 640edbe961cSLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 641edbe961cSLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 642edbe961cSLiad Kaufman 64358f2cc57SLiad Kaufman /* TODO: Work-around SCD bug when moving back by multiples of 0x40 */ 64458f2cc57SLiad Kaufman 64558f2cc57SLiad Kaufman /* Redirect to lower AC */ 64658f2cc57SLiad Kaufman iwl_mvm_reconfig_scd(mvm, queue, iwl_mvm_ac_to_tx_fifo[ac], 64758f2cc57SLiad Kaufman cmd.sta_id, tid, LINK_QUAL_AGG_FRAME_LIMIT_DEF, 64858f2cc57SLiad Kaufman ssn); 64958f2cc57SLiad Kaufman 65058f2cc57SLiad Kaufman /* Update AC marking of the queue */ 65158f2cc57SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 65258f2cc57SLiad Kaufman mvm->queue_info[queue].mac80211_ac = ac; 65358f2cc57SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 65458f2cc57SLiad Kaufman 65558f2cc57SLiad Kaufman /* 65658f2cc57SLiad Kaufman * Mark queue as shared in transport if shared 65758f2cc57SLiad Kaufman * Note this has to be done after queue enablement because enablement 65858f2cc57SLiad Kaufman * can also set this value, and there is no indication there to shared 65958f2cc57SLiad Kaufman * queues 66058f2cc57SLiad Kaufman */ 66158f2cc57SLiad Kaufman if (shared_queue) 66258f2cc57SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 66358f2cc57SLiad Kaufman 66458f2cc57SLiad Kaufman out: 66558f2cc57SLiad Kaufman /* Continue using the MAC queues */ 66658f2cc57SLiad Kaufman iwl_mvm_start_mac_queues(mvm, mq); 66758f2cc57SLiad Kaufman 66858f2cc57SLiad Kaufman return ret; 66958f2cc57SLiad Kaufman } 67058f2cc57SLiad Kaufman 671310181ecSSara Sharon static int iwl_mvm_sta_alloc_queue_tvqm(struct iwl_mvm *mvm, 672310181ecSSara Sharon struct ieee80211_sta *sta, u8 ac, 673310181ecSSara Sharon int tid) 674310181ecSSara Sharon { 675310181ecSSara Sharon struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 676310181ecSSara Sharon unsigned int wdg_timeout = 677310181ecSSara Sharon iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 678310181ecSSara Sharon u8 mac_queue = mvmsta->vif->hw_queue[ac]; 679310181ecSSara Sharon int queue = -1; 680310181ecSSara Sharon 681310181ecSSara Sharon lockdep_assert_held(&mvm->mutex); 682310181ecSSara Sharon 683310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 684310181ecSSara Sharon "Allocating queue for sta %d on tid %d\n", 685310181ecSSara Sharon mvmsta->sta_id, tid); 686310181ecSSara Sharon queue = iwl_mvm_tvqm_enable_txq(mvm, mac_queue, mvmsta->sta_id, tid, 687310181ecSSara Sharon wdg_timeout); 688310181ecSSara Sharon if (queue < 0) 689310181ecSSara Sharon return queue; 690310181ecSSara Sharon 691310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, "Allocated queue is %d\n", queue); 692310181ecSSara Sharon 693310181ecSSara Sharon spin_lock_bh(&mvmsta->lock); 694310181ecSSara Sharon mvmsta->tid_data[tid].txq_id = queue; 695310181ecSSara Sharon mvmsta->tid_data[tid].is_tid_active = true; 696310181ecSSara Sharon spin_unlock_bh(&mvmsta->lock); 697310181ecSSara Sharon 698310181ecSSara Sharon return 0; 699310181ecSSara Sharon } 700310181ecSSara Sharon 70124afba76SLiad Kaufman static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm, 70224afba76SLiad Kaufman struct ieee80211_sta *sta, u8 ac, int tid, 70324afba76SLiad Kaufman struct ieee80211_hdr *hdr) 70424afba76SLiad Kaufman { 70524afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 70624afba76SLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 707cf6c6ea3SEmmanuel Grumbach .fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac), 70824afba76SLiad Kaufman .sta_id = mvmsta->sta_id, 70924afba76SLiad Kaufman .tid = tid, 71024afba76SLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 71124afba76SLiad Kaufman }; 71224afba76SLiad Kaufman unsigned int wdg_timeout = 71324afba76SLiad Kaufman iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 71424afba76SLiad Kaufman u8 mac_queue = mvmsta->vif->hw_queue[ac]; 71524afba76SLiad Kaufman int queue = -1; 71601796ff2SSara Sharon bool using_inactive_queue = false, same_sta = false; 7179794c64fSLiad Kaufman unsigned long disable_agg_tids = 0; 7189794c64fSLiad Kaufman enum iwl_mvm_agg_state queue_state; 719dcfbd67bSEmmanuel Grumbach bool shared_queue = false, inc_ssn; 72024afba76SLiad Kaufman int ssn; 72142db09c1SLiad Kaufman unsigned long tfd_queue_mask; 722cf961e16SLiad Kaufman int ret; 72324afba76SLiad Kaufman 72424afba76SLiad Kaufman lockdep_assert_held(&mvm->mutex); 72524afba76SLiad Kaufman 726310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 727310181ecSSara Sharon return iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 728310181ecSSara Sharon 72942db09c1SLiad Kaufman spin_lock_bh(&mvmsta->lock); 73042db09c1SLiad Kaufman tfd_queue_mask = mvmsta->tfd_queue_msk; 73142db09c1SLiad Kaufman spin_unlock_bh(&mvmsta->lock); 73242db09c1SLiad Kaufman 733d2515a99SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 73424afba76SLiad Kaufman 73524afba76SLiad Kaufman /* 73624afba76SLiad Kaufman * Non-QoS, QoS NDP and MGMT frames should go to a MGMT queue, if one 73724afba76SLiad Kaufman * exists 73824afba76SLiad Kaufman */ 73924afba76SLiad Kaufman if (!ieee80211_is_data_qos(hdr->frame_control) || 74024afba76SLiad Kaufman ieee80211_is_qos_nullfunc(hdr->frame_control)) { 7419794c64fSLiad Kaufman queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 7429794c64fSLiad Kaufman IWL_MVM_DQA_MIN_MGMT_QUEUE, 74324afba76SLiad Kaufman IWL_MVM_DQA_MAX_MGMT_QUEUE); 74424afba76SLiad Kaufman if (queue >= IWL_MVM_DQA_MIN_MGMT_QUEUE) 74524afba76SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Found free MGMT queue #%d\n", 74624afba76SLiad Kaufman queue); 74724afba76SLiad Kaufman 74824afba76SLiad Kaufman /* If no such queue is found, we'll use a DATA queue instead */ 74924afba76SLiad Kaufman } 75024afba76SLiad Kaufman 7519794c64fSLiad Kaufman if ((queue < 0 && mvmsta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) && 7529794c64fSLiad Kaufman (mvm->queue_info[mvmsta->reserved_queue].status == 7539794c64fSLiad Kaufman IWL_MVM_QUEUE_RESERVED || 7549794c64fSLiad Kaufman mvm->queue_info[mvmsta->reserved_queue].status == 7559794c64fSLiad Kaufman IWL_MVM_QUEUE_INACTIVE)) { 75624afba76SLiad Kaufman queue = mvmsta->reserved_queue; 7579794c64fSLiad Kaufman mvm->queue_info[queue].reserved = true; 75824afba76SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Using reserved queue #%d\n", queue); 75924afba76SLiad Kaufman } 76024afba76SLiad Kaufman 76124afba76SLiad Kaufman if (queue < 0) 7629794c64fSLiad Kaufman queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 7639794c64fSLiad Kaufman IWL_MVM_DQA_MIN_DATA_QUEUE, 76424afba76SLiad Kaufman IWL_MVM_DQA_MAX_DATA_QUEUE); 765cf961e16SLiad Kaufman 766cf961e16SLiad Kaufman /* 7679794c64fSLiad Kaufman * Check if this queue is already allocated but inactive. 7689794c64fSLiad Kaufman * In such a case, we'll need to first free this queue before enabling 7699794c64fSLiad Kaufman * it again, so we'll mark it as reserved to make sure no new traffic 7709794c64fSLiad Kaufman * arrives on it 7719794c64fSLiad Kaufman */ 7729794c64fSLiad Kaufman if (queue > 0 && 7739794c64fSLiad Kaufman mvm->queue_info[queue].status == IWL_MVM_QUEUE_INACTIVE) { 7749794c64fSLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_RESERVED; 7759794c64fSLiad Kaufman using_inactive_queue = true; 77601796ff2SSara Sharon same_sta = mvm->queue_info[queue].ra_sta_id == mvmsta->sta_id; 7779794c64fSLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 7789794c64fSLiad Kaufman "Re-assigning TXQ %d: sta_id=%d, tid=%d\n", 7799794c64fSLiad Kaufman queue, mvmsta->sta_id, tid); 7809794c64fSLiad Kaufman } 7819794c64fSLiad Kaufman 78242db09c1SLiad Kaufman /* No free queue - we'll have to share */ 78342db09c1SLiad Kaufman if (queue <= 0) { 78442db09c1SLiad Kaufman queue = iwl_mvm_get_shared_queue(mvm, tfd_queue_mask, ac); 78542db09c1SLiad Kaufman if (queue > 0) { 78642db09c1SLiad Kaufman shared_queue = true; 78742db09c1SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_SHARED; 78842db09c1SLiad Kaufman } 78942db09c1SLiad Kaufman } 79042db09c1SLiad Kaufman 7919794c64fSLiad Kaufman /* 792cf961e16SLiad Kaufman * Mark TXQ as ready, even though it hasn't been fully configured yet, 793cf961e16SLiad Kaufman * to make sure no one else takes it. 794cf961e16SLiad Kaufman * This will allow avoiding re-acquiring the lock at the end of the 795cf961e16SLiad Kaufman * configuration. On error we'll mark it back as free. 796cf961e16SLiad Kaufman */ 79742db09c1SLiad Kaufman if ((queue > 0) && !shared_queue) 798cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 79924afba76SLiad Kaufman 800d2515a99SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 80124afba76SLiad Kaufman 80242db09c1SLiad Kaufman /* This shouldn't happen - out of queues */ 80342db09c1SLiad Kaufman if (WARN_ON(queue <= 0)) { 80442db09c1SLiad Kaufman IWL_ERR(mvm, "No available queues for tid %d on sta_id %d\n", 80542db09c1SLiad Kaufman tid, cfg.sta_id); 8069f9af3d7SLiad Kaufman return queue; 80742db09c1SLiad Kaufman } 80824afba76SLiad Kaufman 80924afba76SLiad Kaufman /* 81024afba76SLiad Kaufman * Actual en/disablement of aggregations is through the ADD_STA HCMD, 81124afba76SLiad Kaufman * but for configuring the SCD to send A-MPDUs we need to mark the queue 81224afba76SLiad Kaufman * as aggregatable. 81324afba76SLiad Kaufman * Mark all DATA queues as allowing to be aggregated at some point 81424afba76SLiad Kaufman */ 815d5216a28SLiad Kaufman cfg.aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 816d5216a28SLiad Kaufman queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE); 81724afba76SLiad Kaufman 8189794c64fSLiad Kaufman /* 8199794c64fSLiad Kaufman * If this queue was previously inactive (idle) - we need to free it 8209794c64fSLiad Kaufman * first 8219794c64fSLiad Kaufman */ 8229794c64fSLiad Kaufman if (using_inactive_queue) { 82301796ff2SSara Sharon ret = iwl_mvm_free_inactive_queue(mvm, queue, same_sta); 82401796ff2SSara Sharon if (ret) 8259794c64fSLiad Kaufman return ret; 8269794c64fSLiad Kaufman } 8278d98ae6eSLiad Kaufman 82842db09c1SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 82942db09c1SLiad Kaufman "Allocating %squeue #%d to sta %d on tid %d\n", 83042db09c1SLiad Kaufman shared_queue ? "shared " : "", queue, 83142db09c1SLiad Kaufman mvmsta->sta_id, tid); 83242db09c1SLiad Kaufman 83342db09c1SLiad Kaufman if (shared_queue) { 83442db09c1SLiad Kaufman /* Disable any open aggs on this queue */ 83542db09c1SLiad Kaufman disable_agg_tids = iwl_mvm_get_queue_agg_tids(mvm, queue); 83642db09c1SLiad Kaufman 83742db09c1SLiad Kaufman if (disable_agg_tids) { 83842db09c1SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Disabling aggs on queue %d\n", 83942db09c1SLiad Kaufman queue); 84042db09c1SLiad Kaufman iwl_mvm_invalidate_sta_queue(mvm, queue, 84142db09c1SLiad Kaufman disable_agg_tids, false); 84242db09c1SLiad Kaufman } 84342db09c1SLiad Kaufman } 84424afba76SLiad Kaufman 84524afba76SLiad Kaufman ssn = IEEE80211_SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl)); 846dcfbd67bSEmmanuel Grumbach inc_ssn = iwl_mvm_enable_txq(mvm, queue, mac_queue, 847dcfbd67bSEmmanuel Grumbach ssn, &cfg, wdg_timeout); 848dcfbd67bSEmmanuel Grumbach if (inc_ssn) { 849dcfbd67bSEmmanuel Grumbach ssn = (ssn + 1) & IEEE80211_SCTL_SEQ; 850dcfbd67bSEmmanuel Grumbach le16_add_cpu(&hdr->seq_ctrl, 0x10); 851dcfbd67bSEmmanuel Grumbach } 85224afba76SLiad Kaufman 85358f2cc57SLiad Kaufman /* 85458f2cc57SLiad Kaufman * Mark queue as shared in transport if shared 85558f2cc57SLiad Kaufman * Note this has to be done after queue enablement because enablement 85658f2cc57SLiad Kaufman * can also set this value, and there is no indication there to shared 85758f2cc57SLiad Kaufman * queues 85858f2cc57SLiad Kaufman */ 85958f2cc57SLiad Kaufman if (shared_queue) 86058f2cc57SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 86158f2cc57SLiad Kaufman 86224afba76SLiad Kaufman spin_lock_bh(&mvmsta->lock); 863dcfbd67bSEmmanuel Grumbach /* 864dcfbd67bSEmmanuel Grumbach * This looks racy, but it is not. We have only one packet for 865dcfbd67bSEmmanuel Grumbach * this ra/tid in our Tx path since we stop the Qdisc when we 866dcfbd67bSEmmanuel Grumbach * need to allocate a new TFD queue. 867dcfbd67bSEmmanuel Grumbach */ 868dcfbd67bSEmmanuel Grumbach if (inc_ssn) 869dcfbd67bSEmmanuel Grumbach mvmsta->tid_data[tid].seq_number += 0x10; 87024afba76SLiad Kaufman mvmsta->tid_data[tid].txq_id = queue; 8719794c64fSLiad Kaufman mvmsta->tid_data[tid].is_tid_active = true; 87224afba76SLiad Kaufman mvmsta->tfd_queue_msk |= BIT(queue); 8739794c64fSLiad Kaufman queue_state = mvmsta->tid_data[tid].state; 87424afba76SLiad Kaufman 87524afba76SLiad Kaufman if (mvmsta->reserved_queue == queue) 87624afba76SLiad Kaufman mvmsta->reserved_queue = IEEE80211_INVAL_HW_QUEUE; 87724afba76SLiad Kaufman spin_unlock_bh(&mvmsta->lock); 87824afba76SLiad Kaufman 87942db09c1SLiad Kaufman if (!shared_queue) { 880cf961e16SLiad Kaufman ret = iwl_mvm_sta_send_to_fw(mvm, sta, true, STA_MODIFY_QUEUES); 881cf961e16SLiad Kaufman if (ret) 882cf961e16SLiad Kaufman goto out_err; 883cf961e16SLiad Kaufman 8849794c64fSLiad Kaufman /* If we need to re-enable aggregations... */ 88542db09c1SLiad Kaufman if (queue_state == IWL_AGG_ON) { 8869794c64fSLiad Kaufman ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 88742db09c1SLiad Kaufman if (ret) 88842db09c1SLiad Kaufman goto out_err; 88942db09c1SLiad Kaufman } 89058f2cc57SLiad Kaufman } else { 89158f2cc57SLiad Kaufman /* Redirect queue, if needed */ 89258f2cc57SLiad Kaufman ret = iwl_mvm_scd_queue_redirect(mvm, queue, tid, ac, ssn, 89358f2cc57SLiad Kaufman wdg_timeout, false); 89458f2cc57SLiad Kaufman if (ret) 89558f2cc57SLiad Kaufman goto out_err; 89642db09c1SLiad Kaufman } 8979794c64fSLiad Kaufman 89842db09c1SLiad Kaufman return 0; 899cf961e16SLiad Kaufman 900cf961e16SLiad Kaufman out_err: 901cf961e16SLiad Kaufman iwl_mvm_disable_txq(mvm, queue, mac_queue, tid, 0); 902cf961e16SLiad Kaufman 903cf961e16SLiad Kaufman return ret; 90424afba76SLiad Kaufman } 90524afba76SLiad Kaufman 90619aefa45SLiad Kaufman static void iwl_mvm_change_queue_owner(struct iwl_mvm *mvm, int queue) 90719aefa45SLiad Kaufman { 90819aefa45SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 90919aefa45SLiad Kaufman .scd_queue = queue, 91019aefa45SLiad Kaufman .action = SCD_CFG_UPDATE_QUEUE_TID, 91119aefa45SLiad Kaufman }; 91219aefa45SLiad Kaufman int tid; 91319aefa45SLiad Kaufman unsigned long tid_bitmap; 91419aefa45SLiad Kaufman int ret; 91519aefa45SLiad Kaufman 91619aefa45SLiad Kaufman lockdep_assert_held(&mvm->mutex); 91719aefa45SLiad Kaufman 918bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 919bb49701bSSara Sharon return; 920bb49701bSSara Sharon 92119aefa45SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 92219aefa45SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 92319aefa45SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 92419aefa45SLiad Kaufman 92519aefa45SLiad Kaufman if (WARN(!tid_bitmap, "TXQ %d has no tids assigned to it\n", queue)) 92619aefa45SLiad Kaufman return; 92719aefa45SLiad Kaufman 92819aefa45SLiad Kaufman /* Find any TID for queue */ 92919aefa45SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 93019aefa45SLiad Kaufman cmd.tid = tid; 93119aefa45SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 93219aefa45SLiad Kaufman 93319aefa45SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 934341ca402SLiad Kaufman if (ret) { 93519aefa45SLiad Kaufman IWL_ERR(mvm, "Failed to update owner of TXQ %d (ret=%d)\n", 93619aefa45SLiad Kaufman queue, ret); 937341ca402SLiad Kaufman return; 938341ca402SLiad Kaufman } 939341ca402SLiad Kaufman 940341ca402SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 941341ca402SLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 942341ca402SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 94319aefa45SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Changed TXQ %d ownership to tid %d\n", 94419aefa45SLiad Kaufman queue, tid); 94519aefa45SLiad Kaufman } 94619aefa45SLiad Kaufman 9479f9af3d7SLiad Kaufman static void iwl_mvm_unshare_queue(struct iwl_mvm *mvm, int queue) 9489f9af3d7SLiad Kaufman { 9499f9af3d7SLiad Kaufman struct ieee80211_sta *sta; 9509f9af3d7SLiad Kaufman struct iwl_mvm_sta *mvmsta; 951806911daSSharon Dvir u8 sta_id; 9529f9af3d7SLiad Kaufman int tid = -1; 9539f9af3d7SLiad Kaufman unsigned long tid_bitmap; 9549f9af3d7SLiad Kaufman unsigned int wdg_timeout; 9559f9af3d7SLiad Kaufman int ssn; 9569f9af3d7SLiad Kaufman int ret = true; 9579f9af3d7SLiad Kaufman 958bb49701bSSara Sharon /* queue sharing is disabled on new TX path */ 959bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 960bb49701bSSara Sharon return; 961bb49701bSSara Sharon 9629f9af3d7SLiad Kaufman lockdep_assert_held(&mvm->mutex); 9639f9af3d7SLiad Kaufman 9649f9af3d7SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 9659f9af3d7SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 9669f9af3d7SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 9679f9af3d7SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 9689f9af3d7SLiad Kaufman 9699f9af3d7SLiad Kaufman /* Find TID for queue, and make sure it is the only one on the queue */ 9709f9af3d7SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 9719f9af3d7SLiad Kaufman if (tid_bitmap != BIT(tid)) { 9729f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to unshare q %d, active tids=0x%lx\n", 9739f9af3d7SLiad Kaufman queue, tid_bitmap); 9749f9af3d7SLiad Kaufman return; 9759f9af3d7SLiad Kaufman } 9769f9af3d7SLiad Kaufman 9779f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Unsharing TXQ %d, keeping tid %d\n", queue, 9789f9af3d7SLiad Kaufman tid); 9799f9af3d7SLiad Kaufman 9809f9af3d7SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 9819f9af3d7SLiad Kaufman lockdep_is_held(&mvm->mutex)); 9829f9af3d7SLiad Kaufman 9839f9af3d7SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 9849f9af3d7SLiad Kaufman return; 9859f9af3d7SLiad Kaufman 9869f9af3d7SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 9879f9af3d7SLiad Kaufman wdg_timeout = iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 9889f9af3d7SLiad Kaufman 9899f9af3d7SLiad Kaufman ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 9909f9af3d7SLiad Kaufman 9919f9af3d7SLiad Kaufman ret = iwl_mvm_scd_queue_redirect(mvm, queue, tid, 9929f9af3d7SLiad Kaufman tid_to_mac80211_ac[tid], ssn, 9939f9af3d7SLiad Kaufman wdg_timeout, true); 9949f9af3d7SLiad Kaufman if (ret) { 9959f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to redirect TXQ %d\n", queue); 9969f9af3d7SLiad Kaufman return; 9979f9af3d7SLiad Kaufman } 9989f9af3d7SLiad Kaufman 9999f9af3d7SLiad Kaufman /* If aggs should be turned back on - do it */ 10009f9af3d7SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) { 10019cd70e80SEmmanuel Grumbach struct iwl_mvm_add_sta_cmd cmd = {0}; 10029f9af3d7SLiad Kaufman 10039f9af3d7SLiad Kaufman mvmsta->tid_disable_agg &= ~BIT(tid); 10049f9af3d7SLiad Kaufman 10059f9af3d7SLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 10069f9af3d7SLiad Kaufman cmd.sta_id = mvmsta->sta_id; 10079f9af3d7SLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 10089f9af3d7SLiad Kaufman cmd.modify_mask = STA_MODIFY_TID_DISABLE_TX; 10099f9af3d7SLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 10109f9af3d7SLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 10119f9af3d7SLiad Kaufman 10129f9af3d7SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 10139f9af3d7SLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), &cmd); 10149f9af3d7SLiad Kaufman if (!ret) { 10159f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 10169f9af3d7SLiad Kaufman "TXQ #%d is now aggregated again\n", 10179f9af3d7SLiad Kaufman queue); 10189f9af3d7SLiad Kaufman 10199f9af3d7SLiad Kaufman /* Mark queue intenally as aggregating again */ 10209f9af3d7SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, false); 10219f9af3d7SLiad Kaufman } 10229f9af3d7SLiad Kaufman } 10239f9af3d7SLiad Kaufman 10249f9af3d7SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 10259f9af3d7SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 10269f9af3d7SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 10279f9af3d7SLiad Kaufman } 10289f9af3d7SLiad Kaufman 102924afba76SLiad Kaufman static inline u8 iwl_mvm_tid_to_ac_queue(int tid) 103024afba76SLiad Kaufman { 103124afba76SLiad Kaufman if (tid == IWL_MAX_TID_COUNT) 103224afba76SLiad Kaufman return IEEE80211_AC_VO; /* MGMT */ 103324afba76SLiad Kaufman 103424afba76SLiad Kaufman return tid_to_mac80211_ac[tid]; 103524afba76SLiad Kaufman } 103624afba76SLiad Kaufman 103724afba76SLiad Kaufman static void iwl_mvm_tx_deferred_stream(struct iwl_mvm *mvm, 103824afba76SLiad Kaufman struct ieee80211_sta *sta, int tid) 103924afba76SLiad Kaufman { 104024afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 104124afba76SLiad Kaufman struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 104224afba76SLiad Kaufman struct sk_buff *skb; 104324afba76SLiad Kaufman struct ieee80211_hdr *hdr; 104424afba76SLiad Kaufman struct sk_buff_head deferred_tx; 104524afba76SLiad Kaufman u8 mac_queue; 104624afba76SLiad Kaufman bool no_queue = false; /* Marks if there is a problem with the queue */ 104724afba76SLiad Kaufman u8 ac; 104824afba76SLiad Kaufman 104924afba76SLiad Kaufman lockdep_assert_held(&mvm->mutex); 105024afba76SLiad Kaufman 105124afba76SLiad Kaufman skb = skb_peek(&tid_data->deferred_tx_frames); 105224afba76SLiad Kaufman if (!skb) 105324afba76SLiad Kaufman return; 105424afba76SLiad Kaufman hdr = (void *)skb->data; 105524afba76SLiad Kaufman 105624afba76SLiad Kaufman ac = iwl_mvm_tid_to_ac_queue(tid); 105724afba76SLiad Kaufman mac_queue = IEEE80211_SKB_CB(skb)->hw_queue; 105824afba76SLiad Kaufman 10596862fceeSSara Sharon if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE && 106024afba76SLiad Kaufman iwl_mvm_sta_alloc_queue(mvm, sta, ac, tid, hdr)) { 106124afba76SLiad Kaufman IWL_ERR(mvm, 106224afba76SLiad Kaufman "Can't alloc TXQ for sta %d tid %d - dropping frame\n", 106324afba76SLiad Kaufman mvmsta->sta_id, tid); 106424afba76SLiad Kaufman 106524afba76SLiad Kaufman /* 106624afba76SLiad Kaufman * Mark queue as problematic so later the deferred traffic is 106724afba76SLiad Kaufman * freed, as we can do nothing with it 106824afba76SLiad Kaufman */ 106924afba76SLiad Kaufman no_queue = true; 107024afba76SLiad Kaufman } 107124afba76SLiad Kaufman 107224afba76SLiad Kaufman __skb_queue_head_init(&deferred_tx); 107324afba76SLiad Kaufman 1074d2515a99SLiad Kaufman /* Disable bottom-halves when entering TX path */ 1075d2515a99SLiad Kaufman local_bh_disable(); 107624afba76SLiad Kaufman spin_lock(&mvmsta->lock); 107724afba76SLiad Kaufman skb_queue_splice_init(&tid_data->deferred_tx_frames, &deferred_tx); 1078ad5de737SLiad Kaufman mvmsta->deferred_traffic_tid_map &= ~BIT(tid); 107924afba76SLiad Kaufman spin_unlock(&mvmsta->lock); 108024afba76SLiad Kaufman 108124afba76SLiad Kaufman while ((skb = __skb_dequeue(&deferred_tx))) 108224afba76SLiad Kaufman if (no_queue || iwl_mvm_tx_skb(mvm, skb, sta)) 108324afba76SLiad Kaufman ieee80211_free_txskb(mvm->hw, skb); 108424afba76SLiad Kaufman local_bh_enable(); 108524afba76SLiad Kaufman 108624afba76SLiad Kaufman /* Wake queue */ 108724afba76SLiad Kaufman iwl_mvm_start_mac_queues(mvm, BIT(mac_queue)); 108824afba76SLiad Kaufman } 108924afba76SLiad Kaufman 109024afba76SLiad Kaufman void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk) 109124afba76SLiad Kaufman { 109224afba76SLiad Kaufman struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, 109324afba76SLiad Kaufman add_stream_wk); 109424afba76SLiad Kaufman struct ieee80211_sta *sta; 109524afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta; 109624afba76SLiad Kaufman unsigned long deferred_tid_traffic; 10979f9af3d7SLiad Kaufman int queue, sta_id, tid; 109824afba76SLiad Kaufman 10999794c64fSLiad Kaufman /* Check inactivity of queues */ 11009794c64fSLiad Kaufman iwl_mvm_inactivity_check(mvm); 11019794c64fSLiad Kaufman 110224afba76SLiad Kaufman mutex_lock(&mvm->mutex); 110324afba76SLiad Kaufman 110434e10860SSara Sharon /* No queue reconfiguration in TVQM mode */ 110534e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 110634e10860SSara Sharon goto alloc_queues; 110734e10860SSara Sharon 11089f9af3d7SLiad Kaufman /* Reconfigure queues requiring reconfiguation */ 110934e10860SSara Sharon for (queue = 0; queue < ARRAY_SIZE(mvm->queue_info); queue++) { 11109f9af3d7SLiad Kaufman bool reconfig; 111119aefa45SLiad Kaufman bool change_owner; 11129f9af3d7SLiad Kaufman 11139f9af3d7SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 11149f9af3d7SLiad Kaufman reconfig = (mvm->queue_info[queue].status == 11159f9af3d7SLiad Kaufman IWL_MVM_QUEUE_RECONFIGURING); 111619aefa45SLiad Kaufman 111719aefa45SLiad Kaufman /* 111819aefa45SLiad Kaufman * We need to take into account a situation in which a TXQ was 111919aefa45SLiad Kaufman * allocated to TID x, and then turned shared by adding TIDs y 112019aefa45SLiad Kaufman * and z. If TID x becomes inactive and is removed from the TXQ, 112119aefa45SLiad Kaufman * ownership must be given to one of the remaining TIDs. 112219aefa45SLiad Kaufman * This is mainly because if TID x continues - a new queue can't 112319aefa45SLiad Kaufman * be allocated for it as long as it is an owner of another TXQ. 112419aefa45SLiad Kaufman */ 112519aefa45SLiad Kaufman change_owner = !(mvm->queue_info[queue].tid_bitmap & 112619aefa45SLiad Kaufman BIT(mvm->queue_info[queue].txq_tid)) && 112719aefa45SLiad Kaufman (mvm->queue_info[queue].status == 112819aefa45SLiad Kaufman IWL_MVM_QUEUE_SHARED); 11299f9af3d7SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 11309f9af3d7SLiad Kaufman 11319f9af3d7SLiad Kaufman if (reconfig) 11329f9af3d7SLiad Kaufman iwl_mvm_unshare_queue(mvm, queue); 113319aefa45SLiad Kaufman else if (change_owner) 113419aefa45SLiad Kaufman iwl_mvm_change_queue_owner(mvm, queue); 11359f9af3d7SLiad Kaufman } 11369f9af3d7SLiad Kaufman 113734e10860SSara Sharon alloc_queues: 113824afba76SLiad Kaufman /* Go over all stations with deferred traffic */ 113924afba76SLiad Kaufman for_each_set_bit(sta_id, mvm->sta_deferred_frames, 114024afba76SLiad Kaufman IWL_MVM_STATION_COUNT) { 114124afba76SLiad Kaufman clear_bit(sta_id, mvm->sta_deferred_frames); 114224afba76SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 114324afba76SLiad Kaufman lockdep_is_held(&mvm->mutex)); 114424afba76SLiad Kaufman if (IS_ERR_OR_NULL(sta)) 114524afba76SLiad Kaufman continue; 114624afba76SLiad Kaufman 114724afba76SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 114824afba76SLiad Kaufman deferred_tid_traffic = mvmsta->deferred_traffic_tid_map; 114924afba76SLiad Kaufman 115024afba76SLiad Kaufman for_each_set_bit(tid, &deferred_tid_traffic, 115124afba76SLiad Kaufman IWL_MAX_TID_COUNT + 1) 115224afba76SLiad Kaufman iwl_mvm_tx_deferred_stream(mvm, sta, tid); 115324afba76SLiad Kaufman } 115424afba76SLiad Kaufman 115524afba76SLiad Kaufman mutex_unlock(&mvm->mutex); 115624afba76SLiad Kaufman } 115724afba76SLiad Kaufman 115824afba76SLiad Kaufman static int iwl_mvm_reserve_sta_stream(struct iwl_mvm *mvm, 1159d5216a28SLiad Kaufman struct ieee80211_sta *sta, 1160d5216a28SLiad Kaufman enum nl80211_iftype vif_type) 116124afba76SLiad Kaufman { 116224afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 116324afba76SLiad Kaufman int queue; 116401796ff2SSara Sharon bool using_inactive_queue = false, same_sta = false; 116524afba76SLiad Kaufman 1166396952eeSSara Sharon /* queue reserving is disabled on new TX path */ 1167396952eeSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1168396952eeSSara Sharon return 0; 1169396952eeSSara Sharon 11709794c64fSLiad Kaufman /* 11719794c64fSLiad Kaufman * Check for inactive queues, so we don't reach a situation where we 11729794c64fSLiad Kaufman * can't add a STA due to a shortage in queues that doesn't really exist 11739794c64fSLiad Kaufman */ 11749794c64fSLiad Kaufman iwl_mvm_inactivity_check(mvm); 11759794c64fSLiad Kaufman 117624afba76SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 117724afba76SLiad Kaufman 117824afba76SLiad Kaufman /* Make sure we have free resources for this STA */ 1179d5216a28SLiad Kaufman if (vif_type == NL80211_IFTYPE_STATION && !sta->tdls && 1180d5216a28SLiad Kaufman !mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].hw_queue_refcount && 1181cf961e16SLiad Kaufman (mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].status == 1182cf961e16SLiad Kaufman IWL_MVM_QUEUE_FREE)) 1183d5216a28SLiad Kaufman queue = IWL_MVM_DQA_BSS_CLIENT_QUEUE; 1184d5216a28SLiad Kaufman else 11859794c64fSLiad Kaufman queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 11869794c64fSLiad Kaufman IWL_MVM_DQA_MIN_DATA_QUEUE, 118724afba76SLiad Kaufman IWL_MVM_DQA_MAX_DATA_QUEUE); 118824afba76SLiad Kaufman if (queue < 0) { 118924afba76SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 119024afba76SLiad Kaufman IWL_ERR(mvm, "No available queues for new station\n"); 119124afba76SLiad Kaufman return -ENOSPC; 119201796ff2SSara Sharon } else if (mvm->queue_info[queue].status == IWL_MVM_QUEUE_INACTIVE) { 119301796ff2SSara Sharon /* 119401796ff2SSara Sharon * If this queue is already allocated but inactive we'll need to 119501796ff2SSara Sharon * first free this queue before enabling it again, we'll mark 119601796ff2SSara Sharon * it as reserved to make sure no new traffic arrives on it 119701796ff2SSara Sharon */ 119801796ff2SSara Sharon using_inactive_queue = true; 119901796ff2SSara Sharon same_sta = mvm->queue_info[queue].ra_sta_id == mvmsta->sta_id; 120024afba76SLiad Kaufman } 1201cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_RESERVED; 120224afba76SLiad Kaufman 120324afba76SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 120424afba76SLiad Kaufman 120524afba76SLiad Kaufman mvmsta->reserved_queue = queue; 120624afba76SLiad Kaufman 120701796ff2SSara Sharon if (using_inactive_queue) 120801796ff2SSara Sharon iwl_mvm_free_inactive_queue(mvm, queue, same_sta); 120901796ff2SSara Sharon 121024afba76SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Reserving data queue #%d for sta_id %d\n", 121124afba76SLiad Kaufman queue, mvmsta->sta_id); 121224afba76SLiad Kaufman 121324afba76SLiad Kaufman return 0; 121424afba76SLiad Kaufman } 121524afba76SLiad Kaufman 12168d98ae6eSLiad Kaufman /* 12178d98ae6eSLiad Kaufman * In DQA mode, after a HW restart the queues should be allocated as before, in 12188d98ae6eSLiad Kaufman * order to avoid race conditions when there are shared queues. This function 12198d98ae6eSLiad Kaufman * does the re-mapping and queue allocation. 12208d98ae6eSLiad Kaufman * 12218d98ae6eSLiad Kaufman * Note that re-enabling aggregations isn't done in this function. 12228d98ae6eSLiad Kaufman */ 12238d98ae6eSLiad Kaufman static void iwl_mvm_realloc_queues_after_restart(struct iwl_mvm *mvm, 12248d98ae6eSLiad Kaufman struct iwl_mvm_sta *mvm_sta) 12258d98ae6eSLiad Kaufman { 12268d98ae6eSLiad Kaufman unsigned int wdg_timeout = 12278d98ae6eSLiad Kaufman iwl_mvm_get_wd_timeout(mvm, mvm_sta->vif, false, false); 12288d98ae6eSLiad Kaufman int i; 12298d98ae6eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 12308d98ae6eSLiad Kaufman .sta_id = mvm_sta->sta_id, 12318d98ae6eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 12328d98ae6eSLiad Kaufman }; 12338d98ae6eSLiad Kaufman 123403c902bfSJohannes Berg /* Make sure reserved queue is still marked as such (if allocated) */ 123503c902bfSJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) 12368d98ae6eSLiad Kaufman mvm->queue_info[mvm_sta->reserved_queue].status = 12378d98ae6eSLiad Kaufman IWL_MVM_QUEUE_RESERVED; 12388d98ae6eSLiad Kaufman 12398d98ae6eSLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 12408d98ae6eSLiad Kaufman struct iwl_mvm_tid_data *tid_data = &mvm_sta->tid_data[i]; 12418d98ae6eSLiad Kaufman int txq_id = tid_data->txq_id; 12428d98ae6eSLiad Kaufman int ac; 12438d98ae6eSLiad Kaufman u8 mac_queue; 12448d98ae6eSLiad Kaufman 12456862fceeSSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 12468d98ae6eSLiad Kaufman continue; 12478d98ae6eSLiad Kaufman 12488d98ae6eSLiad Kaufman skb_queue_head_init(&tid_data->deferred_tx_frames); 12498d98ae6eSLiad Kaufman 12508d98ae6eSLiad Kaufman ac = tid_to_mac80211_ac[i]; 12518d98ae6eSLiad Kaufman mac_queue = mvm_sta->vif->hw_queue[ac]; 12528d98ae6eSLiad Kaufman 1253310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1254310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 1255310181ecSSara Sharon "Re-mapping sta %d tid %d\n", 1256310181ecSSara Sharon mvm_sta->sta_id, i); 1257310181ecSSara Sharon txq_id = iwl_mvm_tvqm_enable_txq(mvm, mac_queue, 1258310181ecSSara Sharon mvm_sta->sta_id, 1259310181ecSSara Sharon i, wdg_timeout); 1260310181ecSSara Sharon tid_data->txq_id = txq_id; 1261310181ecSSara Sharon } else { 1262310181ecSSara Sharon u16 seq = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 1263310181ecSSara Sharon 12648d98ae6eSLiad Kaufman cfg.tid = i; 1265cf6c6ea3SEmmanuel Grumbach cfg.fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac); 12668d98ae6eSLiad Kaufman cfg.aggregate = (txq_id >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1267310181ecSSara Sharon txq_id == 1268310181ecSSara Sharon IWL_MVM_DQA_BSS_CLIENT_QUEUE); 12698d98ae6eSLiad Kaufman 12708d98ae6eSLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 12718d98ae6eSLiad Kaufman "Re-mapping sta %d tid %d to queue %d\n", 12728d98ae6eSLiad Kaufman mvm_sta->sta_id, i, txq_id); 12738d98ae6eSLiad Kaufman 1274310181ecSSara Sharon iwl_mvm_enable_txq(mvm, txq_id, mac_queue, seq, &cfg, 1275310181ecSSara Sharon wdg_timeout); 12768d98ae6eSLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_READY; 12778d98ae6eSLiad Kaufman } 127834e10860SSara Sharon } 12798d98ae6eSLiad Kaufman } 12808d98ae6eSLiad Kaufman 1281732d06e9SShaul Triebitz static int iwl_mvm_add_int_sta_common(struct iwl_mvm *mvm, 1282732d06e9SShaul Triebitz struct iwl_mvm_int_sta *sta, 1283732d06e9SShaul Triebitz const u8 *addr, 1284732d06e9SShaul Triebitz u16 mac_id, u16 color) 1285732d06e9SShaul Triebitz { 1286732d06e9SShaul Triebitz struct iwl_mvm_add_sta_cmd cmd; 1287732d06e9SShaul Triebitz int ret; 12883f497de9SLuca Coelho u32 status = ADD_STA_SUCCESS; 1289732d06e9SShaul Triebitz 1290732d06e9SShaul Triebitz lockdep_assert_held(&mvm->mutex); 1291732d06e9SShaul Triebitz 1292732d06e9SShaul Triebitz memset(&cmd, 0, sizeof(cmd)); 1293732d06e9SShaul Triebitz cmd.sta_id = sta->sta_id; 1294732d06e9SShaul Triebitz cmd.mac_id_n_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mac_id, 1295732d06e9SShaul Triebitz color)); 1296732d06e9SShaul Triebitz if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 1297732d06e9SShaul Triebitz cmd.station_type = sta->type; 1298732d06e9SShaul Triebitz 1299732d06e9SShaul Triebitz if (!iwl_mvm_has_new_tx_api(mvm)) 1300732d06e9SShaul Triebitz cmd.tfd_queue_msk = cpu_to_le32(sta->tfd_queue_msk); 1301732d06e9SShaul Triebitz cmd.tid_disable_tx = cpu_to_le16(0xffff); 1302732d06e9SShaul Triebitz 1303732d06e9SShaul Triebitz if (addr) 1304732d06e9SShaul Triebitz memcpy(cmd.addr, addr, ETH_ALEN); 1305732d06e9SShaul Triebitz 1306732d06e9SShaul Triebitz ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1307732d06e9SShaul Triebitz iwl_mvm_add_sta_cmd_size(mvm), 1308732d06e9SShaul Triebitz &cmd, &status); 1309732d06e9SShaul Triebitz if (ret) 1310732d06e9SShaul Triebitz return ret; 1311732d06e9SShaul Triebitz 1312732d06e9SShaul Triebitz switch (status & IWL_ADD_STA_STATUS_MASK) { 1313732d06e9SShaul Triebitz case ADD_STA_SUCCESS: 1314732d06e9SShaul Triebitz IWL_DEBUG_INFO(mvm, "Internal station added.\n"); 1315732d06e9SShaul Triebitz return 0; 1316732d06e9SShaul Triebitz default: 1317732d06e9SShaul Triebitz ret = -EIO; 1318732d06e9SShaul Triebitz IWL_ERR(mvm, "Add internal station failed, status=0x%x\n", 1319732d06e9SShaul Triebitz status); 1320732d06e9SShaul Triebitz break; 1321732d06e9SShaul Triebitz } 1322732d06e9SShaul Triebitz return ret; 1323732d06e9SShaul Triebitz } 1324732d06e9SShaul Triebitz 1325e705c121SKalle Valo int iwl_mvm_add_sta(struct iwl_mvm *mvm, 1326e705c121SKalle Valo struct ieee80211_vif *vif, 1327e705c121SKalle Valo struct ieee80211_sta *sta) 1328e705c121SKalle Valo { 1329e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1330e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1331a571f5f6SSara Sharon struct iwl_mvm_rxq_dup_data *dup_data; 1332e705c121SKalle Valo int i, ret, sta_id; 1333732d06e9SShaul Triebitz bool sta_update = false; 1334732d06e9SShaul Triebitz unsigned int sta_flags = 0; 1335e705c121SKalle Valo 1336e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1337e705c121SKalle Valo 1338e705c121SKalle Valo if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1339e705c121SKalle Valo sta_id = iwl_mvm_find_free_sta_id(mvm, 1340e705c121SKalle Valo ieee80211_vif_type_p2p(vif)); 1341e705c121SKalle Valo else 1342e705c121SKalle Valo sta_id = mvm_sta->sta_id; 1343e705c121SKalle Valo 13440ae98812SSara Sharon if (sta_id == IWL_MVM_INVALID_STA) 1345e705c121SKalle Valo return -ENOSPC; 1346e705c121SKalle Valo 1347e705c121SKalle Valo spin_lock_init(&mvm_sta->lock); 1348e705c121SKalle Valo 1349c8f54701SJohannes Berg /* if this is a HW restart re-alloc existing queues */ 1350c8f54701SJohannes Berg if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1351732d06e9SShaul Triebitz struct iwl_mvm_int_sta tmp_sta = { 1352732d06e9SShaul Triebitz .sta_id = sta_id, 1353732d06e9SShaul Triebitz .type = mvm_sta->sta_type, 1354732d06e9SShaul Triebitz }; 1355732d06e9SShaul Triebitz 1356732d06e9SShaul Triebitz /* 1357732d06e9SShaul Triebitz * First add an empty station since allocating 1358732d06e9SShaul Triebitz * a queue requires a valid station 1359732d06e9SShaul Triebitz */ 1360732d06e9SShaul Triebitz ret = iwl_mvm_add_int_sta_common(mvm, &tmp_sta, sta->addr, 1361732d06e9SShaul Triebitz mvmvif->id, mvmvif->color); 1362732d06e9SShaul Triebitz if (ret) 1363732d06e9SShaul Triebitz goto err; 1364732d06e9SShaul Triebitz 13658d98ae6eSLiad Kaufman iwl_mvm_realloc_queues_after_restart(mvm, mvm_sta); 1366732d06e9SShaul Triebitz sta_update = true; 1367732d06e9SShaul Triebitz sta_flags = iwl_mvm_has_new_tx_api(mvm) ? 0 : STA_MODIFY_QUEUES; 13688d98ae6eSLiad Kaufman goto update_fw; 13698d98ae6eSLiad Kaufman } 13708d98ae6eSLiad Kaufman 1371e705c121SKalle Valo mvm_sta->sta_id = sta_id; 1372e705c121SKalle Valo mvm_sta->mac_id_n_color = FW_CMD_ID_AND_COLOR(mvmvif->id, 1373e705c121SKalle Valo mvmvif->color); 1374e705c121SKalle Valo mvm_sta->vif = vif; 1375a58bb468SLiad Kaufman if (!mvm->trans->cfg->gen2) 1376e705c121SKalle Valo mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_DEF; 1377a58bb468SLiad Kaufman else 1378a58bb468SLiad Kaufman mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF; 1379e705c121SKalle Valo mvm_sta->tx_protection = 0; 1380e705c121SKalle Valo mvm_sta->tt_tx_protection = false; 1381ced19f26SSara Sharon mvm_sta->sta_type = sta->tdls ? IWL_STA_TDLS_LINK : IWL_STA_LINK; 1382e705c121SKalle Valo 1383e705c121SKalle Valo /* HW restart, don't assume the memory has been zeroed */ 1384e705c121SKalle Valo mvm_sta->tid_disable_agg = 0xffff; /* No aggs at first */ 1385e705c121SKalle Valo mvm_sta->tfd_queue_msk = 0; 1386e705c121SKalle Valo 1387e705c121SKalle Valo /* for HW restart - reset everything but the sequence number */ 138824afba76SLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 1389e705c121SKalle Valo u16 seq = mvm_sta->tid_data[i].seq_number; 1390e705c121SKalle Valo memset(&mvm_sta->tid_data[i], 0, sizeof(mvm_sta->tid_data[i])); 1391e705c121SKalle Valo mvm_sta->tid_data[i].seq_number = seq; 139224afba76SLiad Kaufman 139324afba76SLiad Kaufman /* 139424afba76SLiad Kaufman * Mark all queues for this STA as unallocated and defer TX 139524afba76SLiad Kaufman * frames until the queue is allocated 139624afba76SLiad Kaufman */ 13976862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 139824afba76SLiad Kaufman skb_queue_head_init(&mvm_sta->tid_data[i].deferred_tx_frames); 1399e705c121SKalle Valo } 140024afba76SLiad Kaufman mvm_sta->deferred_traffic_tid_map = 0; 1401e705c121SKalle Valo mvm_sta->agg_tids = 0; 1402e705c121SKalle Valo 1403a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && 1404a571f5f6SSara Sharon !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 140592c4dca6SJohannes Berg int q; 140692c4dca6SJohannes Berg 1407a571f5f6SSara Sharon dup_data = kcalloc(mvm->trans->num_rx_queues, 140892c4dca6SJohannes Berg sizeof(*dup_data), GFP_KERNEL); 1409a571f5f6SSara Sharon if (!dup_data) 1410a571f5f6SSara Sharon return -ENOMEM; 141192c4dca6SJohannes Berg /* 141292c4dca6SJohannes Berg * Initialize all the last_seq values to 0xffff which can never 141392c4dca6SJohannes Berg * compare equal to the frame's seq_ctrl in the check in 141492c4dca6SJohannes Berg * iwl_mvm_is_dup() since the lower 4 bits are the fragment 141592c4dca6SJohannes Berg * number and fragmented packets don't reach that function. 141692c4dca6SJohannes Berg * 141792c4dca6SJohannes Berg * This thus allows receiving a packet with seqno 0 and the 141892c4dca6SJohannes Berg * retry bit set as the very first packet on a new TID. 141992c4dca6SJohannes Berg */ 142092c4dca6SJohannes Berg for (q = 0; q < mvm->trans->num_rx_queues; q++) 142192c4dca6SJohannes Berg memset(dup_data[q].last_seq, 0xff, 142292c4dca6SJohannes Berg sizeof(dup_data[q].last_seq)); 1423a571f5f6SSara Sharon mvm_sta->dup_data = dup_data; 1424a571f5f6SSara Sharon } 1425a571f5f6SSara Sharon 1426c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 1427d5216a28SLiad Kaufman ret = iwl_mvm_reserve_sta_stream(mvm, sta, 1428d5216a28SLiad Kaufman ieee80211_vif_type_p2p(vif)); 142924afba76SLiad Kaufman if (ret) 143024afba76SLiad Kaufman goto err; 143124afba76SLiad Kaufman } 143224afba76SLiad Kaufman 14338d98ae6eSLiad Kaufman update_fw: 1434732d06e9SShaul Triebitz ret = iwl_mvm_sta_send_to_fw(mvm, sta, sta_update, sta_flags); 1435e705c121SKalle Valo if (ret) 1436e705c121SKalle Valo goto err; 1437e705c121SKalle Valo 1438e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) { 1439e705c121SKalle Valo if (!sta->tdls) { 14400ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id != IWL_MVM_INVALID_STA); 1441e705c121SKalle Valo mvmvif->ap_sta_id = sta_id; 1442e705c121SKalle Valo } else { 14430ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id == IWL_MVM_INVALID_STA); 1444e705c121SKalle Valo } 1445e705c121SKalle Valo } 1446e705c121SKalle Valo 1447e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], sta); 1448e705c121SKalle Valo 1449e705c121SKalle Valo return 0; 1450e705c121SKalle Valo 1451e705c121SKalle Valo err: 1452e705c121SKalle Valo return ret; 1453e705c121SKalle Valo } 1454e705c121SKalle Valo 1455e705c121SKalle Valo int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, 1456e705c121SKalle Valo bool drain) 1457e705c121SKalle Valo { 1458e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 1459e705c121SKalle Valo int ret; 1460e705c121SKalle Valo u32 status; 1461e705c121SKalle Valo 1462e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1463e705c121SKalle Valo 1464e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 1465e705c121SKalle Valo cmd.sta_id = mvmsta->sta_id; 1466e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 1467e705c121SKalle Valo cmd.station_flags = drain ? cpu_to_le32(STA_FLG_DRAIN_FLOW) : 0; 1468e705c121SKalle Valo cmd.station_flags_msk = cpu_to_le32(STA_FLG_DRAIN_FLOW); 1469e705c121SKalle Valo 1470e705c121SKalle Valo status = ADD_STA_SUCCESS; 1471854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1472854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 1473e705c121SKalle Valo &cmd, &status); 1474e705c121SKalle Valo if (ret) 1475e705c121SKalle Valo return ret; 1476e705c121SKalle Valo 1477837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 1478e705c121SKalle Valo case ADD_STA_SUCCESS: 1479e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "Frames for staid %d will drained in fw\n", 1480e705c121SKalle Valo mvmsta->sta_id); 1481e705c121SKalle Valo break; 1482e705c121SKalle Valo default: 1483e705c121SKalle Valo ret = -EIO; 1484e705c121SKalle Valo IWL_ERR(mvm, "Couldn't drain frames for staid %d\n", 1485e705c121SKalle Valo mvmsta->sta_id); 1486e705c121SKalle Valo break; 1487e705c121SKalle Valo } 1488e705c121SKalle Valo 1489e705c121SKalle Valo return ret; 1490e705c121SKalle Valo } 1491e705c121SKalle Valo 1492e705c121SKalle Valo /* 1493e705c121SKalle Valo * Remove a station from the FW table. Before sending the command to remove 1494e705c121SKalle Valo * the station validate that the station is indeed known to the driver (sanity 1495e705c121SKalle Valo * only). 1496e705c121SKalle Valo */ 1497e705c121SKalle Valo static int iwl_mvm_rm_sta_common(struct iwl_mvm *mvm, u8 sta_id) 1498e705c121SKalle Valo { 1499e705c121SKalle Valo struct ieee80211_sta *sta; 1500e705c121SKalle Valo struct iwl_mvm_rm_sta_cmd rm_sta_cmd = { 1501e705c121SKalle Valo .sta_id = sta_id, 1502e705c121SKalle Valo }; 1503e705c121SKalle Valo int ret; 1504e705c121SKalle Valo 1505e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 1506e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1507e705c121SKalle Valo 1508e705c121SKalle Valo /* Note: internal stations are marked as error values */ 1509e705c121SKalle Valo if (!sta) { 1510e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 1511e705c121SKalle Valo return -EINVAL; 1512e705c121SKalle Valo } 1513e705c121SKalle Valo 1514e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, REMOVE_STA, 0, 1515e705c121SKalle Valo sizeof(rm_sta_cmd), &rm_sta_cmd); 1516e705c121SKalle Valo if (ret) { 1517e705c121SKalle Valo IWL_ERR(mvm, "Failed to remove station. Id=%d\n", sta_id); 1518e705c121SKalle Valo return ret; 1519e705c121SKalle Valo } 1520e705c121SKalle Valo 1521e705c121SKalle Valo return 0; 1522e705c121SKalle Valo } 1523e705c121SKalle Valo 152424afba76SLiad Kaufman static void iwl_mvm_disable_sta_queues(struct iwl_mvm *mvm, 152524afba76SLiad Kaufman struct ieee80211_vif *vif, 152624afba76SLiad Kaufman struct iwl_mvm_sta *mvm_sta) 152724afba76SLiad Kaufman { 152824afba76SLiad Kaufman int ac; 152924afba76SLiad Kaufman int i; 153024afba76SLiad Kaufman 153124afba76SLiad Kaufman lockdep_assert_held(&mvm->mutex); 153224afba76SLiad Kaufman 153324afba76SLiad Kaufman for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 15346862fceeSSara Sharon if (mvm_sta->tid_data[i].txq_id == IWL_MVM_INVALID_QUEUE) 153524afba76SLiad Kaufman continue; 153624afba76SLiad Kaufman 153724afba76SLiad Kaufman ac = iwl_mvm_tid_to_ac_queue(i); 153824afba76SLiad Kaufman iwl_mvm_disable_txq(mvm, mvm_sta->tid_data[i].txq_id, 153924afba76SLiad Kaufman vif->hw_queue[ac], i, 0); 15406862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 154124afba76SLiad Kaufman } 154224afba76SLiad Kaufman } 154324afba76SLiad Kaufman 1544d6d517b7SSara Sharon int iwl_mvm_wait_sta_queues_empty(struct iwl_mvm *mvm, 1545d6d517b7SSara Sharon struct iwl_mvm_sta *mvm_sta) 1546d6d517b7SSara Sharon { 1547bec9522aSSharon Dvir int i; 1548d6d517b7SSara Sharon 1549d6d517b7SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 1550d6d517b7SSara Sharon u16 txq_id; 1551bec9522aSSharon Dvir int ret; 1552d6d517b7SSara Sharon 1553d6d517b7SSara Sharon spin_lock_bh(&mvm_sta->lock); 1554d6d517b7SSara Sharon txq_id = mvm_sta->tid_data[i].txq_id; 1555d6d517b7SSara Sharon spin_unlock_bh(&mvm_sta->lock); 1556d6d517b7SSara Sharon 1557d6d517b7SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 1558d6d517b7SSara Sharon continue; 1559d6d517b7SSara Sharon 1560d6d517b7SSara Sharon ret = iwl_trans_wait_txq_empty(mvm->trans, txq_id); 1561d6d517b7SSara Sharon if (ret) 1562bec9522aSSharon Dvir return ret; 1563d6d517b7SSara Sharon } 1564d6d517b7SSara Sharon 1565bec9522aSSharon Dvir return 0; 1566d6d517b7SSara Sharon } 1567d6d517b7SSara Sharon 1568e705c121SKalle Valo int iwl_mvm_rm_sta(struct iwl_mvm *mvm, 1569e705c121SKalle Valo struct ieee80211_vif *vif, 1570e705c121SKalle Valo struct ieee80211_sta *sta) 1571e705c121SKalle Valo { 1572e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1573e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 157494c3e614SSara Sharon u8 sta_id = mvm_sta->sta_id; 1575e705c121SKalle Valo int ret; 1576e705c121SKalle Valo 1577e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1578e705c121SKalle Valo 1579a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm)) 1580a571f5f6SSara Sharon kfree(mvm_sta->dup_data); 1581a571f5f6SSara Sharon 1582e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, true); 1583e705c121SKalle Valo if (ret) 1584e705c121SKalle Valo return ret; 1585c8f54701SJohannes Berg 1586e705c121SKalle Valo /* flush its queues here since we are freeing mvm_sta */ 1587d49394a1SSara Sharon ret = iwl_mvm_flush_sta(mvm, mvm_sta, false, 0); 1588e705c121SKalle Valo if (ret) 1589e705c121SKalle Valo return ret; 1590d6d517b7SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1591d6d517b7SSara Sharon ret = iwl_mvm_wait_sta_queues_empty(mvm, mvm_sta); 1592d6d517b7SSara Sharon } else { 1593d6d517b7SSara Sharon u32 q_mask = mvm_sta->tfd_queue_msk; 1594d6d517b7SSara Sharon 1595a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 1596d6d517b7SSara Sharon q_mask); 1597d6d517b7SSara Sharon } 1598e705c121SKalle Valo if (ret) 1599e705c121SKalle Valo return ret; 1600c8f54701SJohannes Berg 1601e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, false); 1602e705c121SKalle Valo 160356214749SLiad Kaufman iwl_mvm_disable_sta_queues(mvm, vif, mvm_sta); 160456214749SLiad Kaufman 160556214749SLiad Kaufman /* If there is a TXQ still marked as reserved - free it */ 1606c8f54701SJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) { 1607a0315deaSLiad Kaufman u8 reserved_txq = mvm_sta->reserved_queue; 1608a0315deaSLiad Kaufman enum iwl_mvm_queue_status *status; 1609a0315deaSLiad Kaufman 1610a0315deaSLiad Kaufman /* 1611a0315deaSLiad Kaufman * If no traffic has gone through the reserved TXQ - it 1612a0315deaSLiad Kaufman * is still marked as IWL_MVM_QUEUE_RESERVED, and 1613a0315deaSLiad Kaufman * should be manually marked as free again 1614a0315deaSLiad Kaufman */ 1615a0315deaSLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 1616a0315deaSLiad Kaufman status = &mvm->queue_info[reserved_txq].status; 1617a0315deaSLiad Kaufman if (WARN((*status != IWL_MVM_QUEUE_RESERVED) && 1618a0315deaSLiad Kaufman (*status != IWL_MVM_QUEUE_FREE), 1619a0315deaSLiad Kaufman "sta_id %d reserved txq %d status %d", 162094c3e614SSara Sharon sta_id, reserved_txq, *status)) { 1621a0315deaSLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 1622a0315deaSLiad Kaufman return -EINVAL; 1623a0315deaSLiad Kaufman } 1624a0315deaSLiad Kaufman 1625a0315deaSLiad Kaufman *status = IWL_MVM_QUEUE_FREE; 1626a0315deaSLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 1627a0315deaSLiad Kaufman } 1628a0315deaSLiad Kaufman 1629e3118ad7SLiad Kaufman if (vif->type == NL80211_IFTYPE_STATION && 163094c3e614SSara Sharon mvmvif->ap_sta_id == sta_id) { 1631e3118ad7SLiad Kaufman /* if associated - we can't remove the AP STA now */ 1632e705c121SKalle Valo if (vif->bss_conf.assoc) 1633e705c121SKalle Valo return ret; 1634e705c121SKalle Valo 1635e705c121SKalle Valo /* unassoc - go ahead - remove the AP STA now */ 16360ae98812SSara Sharon mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1637e705c121SKalle Valo 1638e705c121SKalle Valo /* clear d0i3_ap_sta_id if no longer relevant */ 163994c3e614SSara Sharon if (mvm->d0i3_ap_sta_id == sta_id) 16400ae98812SSara Sharon mvm->d0i3_ap_sta_id = IWL_MVM_INVALID_STA; 1641e705c121SKalle Valo } 1642e705c121SKalle Valo 1643e705c121SKalle Valo /* 1644e705c121SKalle Valo * This shouldn't happen - the TDLS channel switch should be canceled 1645e705c121SKalle Valo * before the STA is removed. 1646e705c121SKalle Valo */ 164794c3e614SSara Sharon if (WARN_ON_ONCE(mvm->tdls_cs.peer.sta_id == sta_id)) { 16480ae98812SSara Sharon mvm->tdls_cs.peer.sta_id = IWL_MVM_INVALID_STA; 1649e705c121SKalle Valo cancel_delayed_work(&mvm->tdls_cs.dwork); 1650e705c121SKalle Valo } 1651e705c121SKalle Valo 1652e705c121SKalle Valo /* 1653e705c121SKalle Valo * Make sure that the tx response code sees the station as -EBUSY and 1654e705c121SKalle Valo * calls the drain worker. 1655e705c121SKalle Valo */ 1656e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 1657e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 1658e705c121SKalle Valo 1659e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvm_sta->sta_id); 1660e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[mvm_sta->sta_id], NULL); 1661e705c121SKalle Valo 1662e705c121SKalle Valo return ret; 1663e705c121SKalle Valo } 1664e705c121SKalle Valo 1665e705c121SKalle Valo int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm, 1666e705c121SKalle Valo struct ieee80211_vif *vif, 1667e705c121SKalle Valo u8 sta_id) 1668e705c121SKalle Valo { 1669e705c121SKalle Valo int ret = iwl_mvm_rm_sta_common(mvm, sta_id); 1670e705c121SKalle Valo 1671e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1672e705c121SKalle Valo 1673e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], NULL); 1674e705c121SKalle Valo return ret; 1675e705c121SKalle Valo } 1676e705c121SKalle Valo 16770e39eb03SChaya Rachel Ivgi int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, 1678e705c121SKalle Valo struct iwl_mvm_int_sta *sta, 1679ced19f26SSara Sharon u32 qmask, enum nl80211_iftype iftype, 1680ced19f26SSara Sharon enum iwl_sta_type type) 1681e705c121SKalle Valo { 1682e705c121SKalle Valo if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1683e705c121SKalle Valo sta->sta_id = iwl_mvm_find_free_sta_id(mvm, iftype); 16840ae98812SSara Sharon if (WARN_ON_ONCE(sta->sta_id == IWL_MVM_INVALID_STA)) 1685e705c121SKalle Valo return -ENOSPC; 1686e705c121SKalle Valo } 1687e705c121SKalle Valo 1688e705c121SKalle Valo sta->tfd_queue_msk = qmask; 1689ced19f26SSara Sharon sta->type = type; 1690e705c121SKalle Valo 1691e705c121SKalle Valo /* put a non-NULL value so iterating over the stations won't stop */ 1692e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta->sta_id], ERR_PTR(-EINVAL)); 1693e705c121SKalle Valo return 0; 1694e705c121SKalle Valo } 1695e705c121SKalle Valo 169626d6c16bSSara Sharon void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta) 1697e705c121SKalle Valo { 1698e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta->sta_id], NULL); 1699e705c121SKalle Valo memset(sta, 0, sizeof(struct iwl_mvm_int_sta)); 17000ae98812SSara Sharon sta->sta_id = IWL_MVM_INVALID_STA; 1701e705c121SKalle Valo } 1702e705c121SKalle Valo 1703c5a719eeSSara Sharon static void iwl_mvm_enable_aux_queue(struct iwl_mvm *mvm) 1704e705c121SKalle Valo { 1705e705c121SKalle Valo unsigned int wdg_timeout = iwlmvm_mod_params.tfd_q_hang_detect ? 1706e705c121SKalle Valo mvm->cfg->base_params->wd_timeout : 1707e705c121SKalle Valo IWL_WATCHDOG_DISABLED; 1708e705c121SKalle Valo 1709310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1710310181ecSSara Sharon int queue = iwl_mvm_tvqm_enable_txq(mvm, mvm->aux_queue, 1711310181ecSSara Sharon mvm->aux_sta.sta_id, 1712310181ecSSara Sharon IWL_MAX_TID_COUNT, 1713310181ecSSara Sharon wdg_timeout); 1714310181ecSSara Sharon mvm->aux_queue = queue; 1715c8f54701SJohannes Berg } else { 171628d0793eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 171728d0793eSLiad Kaufman .fifo = IWL_MVM_TX_FIFO_MCAST, 171828d0793eSLiad Kaufman .sta_id = mvm->aux_sta.sta_id, 171928d0793eSLiad Kaufman .tid = IWL_MAX_TID_COUNT, 172028d0793eSLiad Kaufman .aggregate = false, 172128d0793eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 172228d0793eSLiad Kaufman }; 172328d0793eSLiad Kaufman 172428d0793eSLiad Kaufman iwl_mvm_enable_txq(mvm, mvm->aux_queue, mvm->aux_queue, 0, &cfg, 172528d0793eSLiad Kaufman wdg_timeout); 172628d0793eSLiad Kaufman } 1727c5a719eeSSara Sharon } 1728c5a719eeSSara Sharon 1729c5a719eeSSara Sharon int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm) 1730c5a719eeSSara Sharon { 1731c5a719eeSSara Sharon int ret; 1732c5a719eeSSara Sharon 1733c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 1734c5a719eeSSara Sharon 1735c5a719eeSSara Sharon /* Allocate aux station and assign to it the aux queue */ 1736c5a719eeSSara Sharon ret = iwl_mvm_allocate_int_sta(mvm, &mvm->aux_sta, BIT(mvm->aux_queue), 1737ced19f26SSara Sharon NL80211_IFTYPE_UNSPECIFIED, 1738ced19f26SSara Sharon IWL_STA_AUX_ACTIVITY); 1739c5a719eeSSara Sharon if (ret) 1740c5a719eeSSara Sharon return ret; 1741c5a719eeSSara Sharon 1742c5a719eeSSara Sharon /* Map Aux queue to fifo - needs to happen before adding Aux station */ 1743c5a719eeSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) 1744c5a719eeSSara Sharon iwl_mvm_enable_aux_queue(mvm); 174528d0793eSLiad Kaufman 1746e705c121SKalle Valo ret = iwl_mvm_add_int_sta_common(mvm, &mvm->aux_sta, NULL, 1747e705c121SKalle Valo MAC_INDEX_AUX, 0); 1748c5a719eeSSara Sharon if (ret) { 1749e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 1750e705c121SKalle Valo return ret; 1751e705c121SKalle Valo } 1752e705c121SKalle Valo 1753c5a719eeSSara Sharon /* 1754c5a719eeSSara Sharon * For a000 firmware and on we cannot add queue to a station unknown 1755c5a719eeSSara Sharon * to firmware so enable queue here - after the station was added 1756c5a719eeSSara Sharon */ 1757c5a719eeSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 1758c5a719eeSSara Sharon iwl_mvm_enable_aux_queue(mvm); 1759c5a719eeSSara Sharon 1760c5a719eeSSara Sharon return 0; 1761c5a719eeSSara Sharon } 1762c5a719eeSSara Sharon 17630e39eb03SChaya Rachel Ivgi int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 17640e39eb03SChaya Rachel Ivgi { 17650e39eb03SChaya Rachel Ivgi struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 17660e39eb03SChaya Rachel Ivgi 17670e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 17680e39eb03SChaya Rachel Ivgi return iwl_mvm_add_int_sta_common(mvm, &mvm->snif_sta, vif->addr, 17690e39eb03SChaya Rachel Ivgi mvmvif->id, 0); 17700e39eb03SChaya Rachel Ivgi } 17710e39eb03SChaya Rachel Ivgi 17720e39eb03SChaya Rachel Ivgi int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 17730e39eb03SChaya Rachel Ivgi { 17740e39eb03SChaya Rachel Ivgi int ret; 17750e39eb03SChaya Rachel Ivgi 17760e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 17770e39eb03SChaya Rachel Ivgi 17780e39eb03SChaya Rachel Ivgi ret = iwl_mvm_rm_sta_common(mvm, mvm->snif_sta.sta_id); 17790e39eb03SChaya Rachel Ivgi if (ret) 17800e39eb03SChaya Rachel Ivgi IWL_WARN(mvm, "Failed sending remove station\n"); 17810e39eb03SChaya Rachel Ivgi 17820e39eb03SChaya Rachel Ivgi return ret; 17830e39eb03SChaya Rachel Ivgi } 17840e39eb03SChaya Rachel Ivgi 17850e39eb03SChaya Rachel Ivgi void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm) 17860e39eb03SChaya Rachel Ivgi { 17870e39eb03SChaya Rachel Ivgi iwl_mvm_dealloc_int_sta(mvm, &mvm->snif_sta); 17880e39eb03SChaya Rachel Ivgi } 17890e39eb03SChaya Rachel Ivgi 1790e705c121SKalle Valo void iwl_mvm_del_aux_sta(struct iwl_mvm *mvm) 1791e705c121SKalle Valo { 1792e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1793e705c121SKalle Valo 1794e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 1795e705c121SKalle Valo } 1796e705c121SKalle Valo 1797e705c121SKalle Valo /* 1798e705c121SKalle Valo * Send the add station command for the vif's broadcast station. 1799e705c121SKalle Valo * Assumes that the station was already allocated. 1800e705c121SKalle Valo * 1801e705c121SKalle Valo * @mvm: the mvm component 1802e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 1803e705c121SKalle Valo * @bsta: the broadcast station to add. 1804e705c121SKalle Valo */ 1805e705c121SKalle Valo int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1806e705c121SKalle Valo { 1807e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1808e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 1809e705c121SKalle Valo static const u8 _baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; 1810e705c121SKalle Valo const u8 *baddr = _baddr; 18117daa7624SJohannes Berg int queue; 1812df88c08dSLiad Kaufman int ret; 1813c5a719eeSSara Sharon unsigned int wdg_timeout = 1814c5a719eeSSara Sharon iwl_mvm_get_wd_timeout(mvm, vif, false, false); 1815de24f638SLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 1816de24f638SLiad Kaufman .fifo = IWL_MVM_TX_FIFO_VO, 1817de24f638SLiad Kaufman .sta_id = mvmvif->bcast_sta.sta_id, 1818de24f638SLiad Kaufman .tid = IWL_MAX_TID_COUNT, 1819de24f638SLiad Kaufman .aggregate = false, 1820de24f638SLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 1821de24f638SLiad Kaufman }; 1822de24f638SLiad Kaufman 1823c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 1824c5a719eeSSara Sharon 1825c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 18264d339989SLiad Kaufman if (vif->type == NL80211_IFTYPE_AP || 18274d339989SLiad Kaufman vif->type == NL80211_IFTYPE_ADHOC) 182849f71713SSara Sharon queue = mvm->probe_queue; 1829df88c08dSLiad Kaufman else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 183049f71713SSara Sharon queue = mvm->p2p_dev_queue; 1831df88c08dSLiad Kaufman else if (WARN(1, "Missing required TXQ for adding bcast STA\n")) 1832de24f638SLiad Kaufman return -EINVAL; 1833de24f638SLiad Kaufman 1834df88c08dSLiad Kaufman bsta->tfd_queue_msk |= BIT(queue); 1835c5a719eeSSara Sharon 1836c5a719eeSSara Sharon iwl_mvm_enable_txq(mvm, queue, vif->hw_queue[0], 0, 1837c5a719eeSSara Sharon &cfg, wdg_timeout); 1838de24f638SLiad Kaufman } 1839de24f638SLiad Kaufman 1840e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_ADHOC) 1841e705c121SKalle Valo baddr = vif->bss_conf.bssid; 1842e705c121SKalle Valo 18430ae98812SSara Sharon if (WARN_ON_ONCE(bsta->sta_id == IWL_MVM_INVALID_STA)) 1844e705c121SKalle Valo return -ENOSPC; 1845e705c121SKalle Valo 1846df88c08dSLiad Kaufman ret = iwl_mvm_add_int_sta_common(mvm, bsta, baddr, 1847e705c121SKalle Valo mvmvif->id, mvmvif->color); 1848df88c08dSLiad Kaufman if (ret) 1849df88c08dSLiad Kaufman return ret; 1850df88c08dSLiad Kaufman 1851df88c08dSLiad Kaufman /* 1852c5a719eeSSara Sharon * For a000 firmware and on we cannot add queue to a station unknown 1853c5a719eeSSara Sharon * to firmware so enable queue here - after the station was added 1854df88c08dSLiad Kaufman */ 1855310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 18567daa7624SJohannes Berg queue = iwl_mvm_tvqm_enable_txq(mvm, vif->hw_queue[0], 1857310181ecSSara Sharon bsta->sta_id, 1858310181ecSSara Sharon IWL_MAX_TID_COUNT, 1859c5a719eeSSara Sharon wdg_timeout); 18607daa7624SJohannes Berg 18617b758a11SLuca Coelho if (vif->type == NL80211_IFTYPE_AP || 18627b758a11SLuca Coelho vif->type == NL80211_IFTYPE_ADHOC) 1863310181ecSSara Sharon mvm->probe_queue = queue; 1864310181ecSSara Sharon else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1865310181ecSSara Sharon mvm->p2p_dev_queue = queue; 1866310181ecSSara Sharon } 1867df88c08dSLiad Kaufman 1868df88c08dSLiad Kaufman return 0; 1869df88c08dSLiad Kaufman } 1870df88c08dSLiad Kaufman 1871df88c08dSLiad Kaufman static void iwl_mvm_free_bcast_sta_queues(struct iwl_mvm *mvm, 1872df88c08dSLiad Kaufman struct ieee80211_vif *vif) 1873df88c08dSLiad Kaufman { 1874df88c08dSLiad Kaufman struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1875d167e81aSMordechai Goodstein int queue; 1876df88c08dSLiad Kaufman 1877df88c08dSLiad Kaufman lockdep_assert_held(&mvm->mutex); 1878df88c08dSLiad Kaufman 1879d49394a1SSara Sharon iwl_mvm_flush_sta(mvm, &mvmvif->bcast_sta, true, 0); 1880d49394a1SSara Sharon 1881d167e81aSMordechai Goodstein switch (vif->type) { 1882d167e81aSMordechai Goodstein case NL80211_IFTYPE_AP: 1883d167e81aSMordechai Goodstein case NL80211_IFTYPE_ADHOC: 1884d167e81aSMordechai Goodstein queue = mvm->probe_queue; 1885d167e81aSMordechai Goodstein break; 1886d167e81aSMordechai Goodstein case NL80211_IFTYPE_P2P_DEVICE: 1887d167e81aSMordechai Goodstein queue = mvm->p2p_dev_queue; 1888d167e81aSMordechai Goodstein break; 1889d167e81aSMordechai Goodstein default: 1890d167e81aSMordechai Goodstein WARN(1, "Can't free bcast queue on vif type %d\n", 1891d167e81aSMordechai Goodstein vif->type); 1892d167e81aSMordechai Goodstein return; 1893df88c08dSLiad Kaufman } 1894df88c08dSLiad Kaufman 1895d167e81aSMordechai Goodstein iwl_mvm_disable_txq(mvm, queue, vif->hw_queue[0], IWL_MAX_TID_COUNT, 0); 1896d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) 1897d167e81aSMordechai Goodstein return; 1898d167e81aSMordechai Goodstein 1899d167e81aSMordechai Goodstein WARN_ON(!(mvmvif->bcast_sta.tfd_queue_msk & BIT(queue))); 1900d167e81aSMordechai Goodstein mvmvif->bcast_sta.tfd_queue_msk &= ~BIT(queue); 1901e705c121SKalle Valo } 1902e705c121SKalle Valo 1903e705c121SKalle Valo /* Send the FW a request to remove the station from it's internal data 1904e705c121SKalle Valo * structures, but DO NOT remove the entry from the local data structures. */ 1905e705c121SKalle Valo int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1906e705c121SKalle Valo { 1907e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1908e705c121SKalle Valo int ret; 1909e705c121SKalle Valo 1910e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1911e705c121SKalle Valo 1912df88c08dSLiad Kaufman iwl_mvm_free_bcast_sta_queues(mvm, vif); 1913df88c08dSLiad Kaufman 1914e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvmvif->bcast_sta.sta_id); 1915e705c121SKalle Valo if (ret) 1916e705c121SKalle Valo IWL_WARN(mvm, "Failed sending remove station\n"); 1917e705c121SKalle Valo return ret; 1918e705c121SKalle Valo } 1919e705c121SKalle Valo 1920e705c121SKalle Valo int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1921e705c121SKalle Valo { 1922e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1923e705c121SKalle Valo 1924e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1925e705c121SKalle Valo 1926c8f54701SJohannes Berg return iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, 0, 1927ced19f26SSara Sharon ieee80211_vif_type_p2p(vif), 1928ced19f26SSara Sharon IWL_STA_GENERAL_PURPOSE); 1929e705c121SKalle Valo } 1930e705c121SKalle Valo 1931e705c121SKalle Valo /* Allocate a new station entry for the broadcast station to the given vif, 1932e705c121SKalle Valo * and send it to the FW. 1933e705c121SKalle Valo * Note that each P2P mac should have its own broadcast station. 1934e705c121SKalle Valo * 1935e705c121SKalle Valo * @mvm: the mvm component 1936e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 1937e705c121SKalle Valo * @bsta: the broadcast station to add. */ 1938d197358bSLuca Coelho int iwl_mvm_add_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1939e705c121SKalle Valo { 1940e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1941e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 1942e705c121SKalle Valo int ret; 1943e705c121SKalle Valo 1944e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1945e705c121SKalle Valo 1946e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1947e705c121SKalle Valo if (ret) 1948e705c121SKalle Valo return ret; 1949e705c121SKalle Valo 1950e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 1951e705c121SKalle Valo 1952e705c121SKalle Valo if (ret) 1953e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, bsta); 1954e705c121SKalle Valo 1955e705c121SKalle Valo return ret; 1956e705c121SKalle Valo } 1957e705c121SKalle Valo 1958e705c121SKalle Valo void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1959e705c121SKalle Valo { 1960e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1961e705c121SKalle Valo 1962e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta); 1963e705c121SKalle Valo } 1964e705c121SKalle Valo 1965e705c121SKalle Valo /* 1966e705c121SKalle Valo * Send the FW a request to remove the station from it's internal data 1967e705c121SKalle Valo * structures, and in addition remove it from the local data structure. 1968e705c121SKalle Valo */ 1969d197358bSLuca Coelho int iwl_mvm_rm_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1970e705c121SKalle Valo { 1971e705c121SKalle Valo int ret; 1972e705c121SKalle Valo 1973e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1974e705c121SKalle Valo 1975e705c121SKalle Valo ret = iwl_mvm_send_rm_bcast_sta(mvm, vif); 1976e705c121SKalle Valo 1977e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif); 1978e705c121SKalle Valo 1979e705c121SKalle Valo return ret; 1980e705c121SKalle Valo } 1981e705c121SKalle Valo 198226d6c16bSSara Sharon /* 198326d6c16bSSara Sharon * Allocate a new station entry for the multicast station to the given vif, 198426d6c16bSSara Sharon * and send it to the FW. 198526d6c16bSSara Sharon * Note that each AP/GO mac should have its own multicast station. 198626d6c16bSSara Sharon * 198726d6c16bSSara Sharon * @mvm: the mvm component 198826d6c16bSSara Sharon * @vif: the interface to which the multicast station is added 198926d6c16bSSara Sharon */ 199026d6c16bSSara Sharon int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 199126d6c16bSSara Sharon { 199226d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 199326d6c16bSSara Sharon struct iwl_mvm_int_sta *msta = &mvmvif->mcast_sta; 199426d6c16bSSara Sharon static const u8 _maddr[] = {0x03, 0x00, 0x00, 0x00, 0x00, 0x00}; 199526d6c16bSSara Sharon const u8 *maddr = _maddr; 199626d6c16bSSara Sharon struct iwl_trans_txq_scd_cfg cfg = { 199726d6c16bSSara Sharon .fifo = IWL_MVM_TX_FIFO_MCAST, 199826d6c16bSSara Sharon .sta_id = msta->sta_id, 199926d6c16bSSara Sharon .tid = IWL_MAX_TID_COUNT, 200026d6c16bSSara Sharon .aggregate = false, 200126d6c16bSSara Sharon .frame_limit = IWL_FRAME_LIMIT, 200226d6c16bSSara Sharon }; 200326d6c16bSSara Sharon unsigned int timeout = iwl_mvm_get_wd_timeout(mvm, vif, false, false); 200426d6c16bSSara Sharon int ret; 200526d6c16bSSara Sharon 200626d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 200726d6c16bSSara Sharon 2008ee48b722SLiad Kaufman if (WARN_ON(vif->type != NL80211_IFTYPE_AP && 2009ee48b722SLiad Kaufman vif->type != NL80211_IFTYPE_ADHOC)) 201026d6c16bSSara Sharon return -ENOTSUPP; 201126d6c16bSSara Sharon 2012ced19f26SSara Sharon /* 2013ced19f26SSara Sharon * While in previous FWs we had to exclude cab queue from TFD queue 2014ced19f26SSara Sharon * mask, now it is needed as any other queue. 2015ced19f26SSara Sharon */ 2016ced19f26SSara Sharon if (!iwl_mvm_has_new_tx_api(mvm) && 2017ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2018ced19f26SSara Sharon iwl_mvm_enable_txq(mvm, vif->cab_queue, vif->cab_queue, 0, 2019ced19f26SSara Sharon &cfg, timeout); 2020ced19f26SSara Sharon msta->tfd_queue_msk |= BIT(vif->cab_queue); 2021ced19f26SSara Sharon } 202226d6c16bSSara Sharon ret = iwl_mvm_add_int_sta_common(mvm, msta, maddr, 202326d6c16bSSara Sharon mvmvif->id, mvmvif->color); 202426d6c16bSSara Sharon if (ret) { 202526d6c16bSSara Sharon iwl_mvm_dealloc_int_sta(mvm, msta); 202626d6c16bSSara Sharon return ret; 202726d6c16bSSara Sharon } 202826d6c16bSSara Sharon 202926d6c16bSSara Sharon /* 203026d6c16bSSara Sharon * Enable cab queue after the ADD_STA command is sent. 203126d6c16bSSara Sharon * This is needed for a000 firmware which won't accept SCD_QUEUE_CFG 2032ced19f26SSara Sharon * command with unknown station id, and for FW that doesn't support 2033ced19f26SSara Sharon * station API since the cab queue is not included in the 2034ced19f26SSara Sharon * tfd_queue_mask. 203526d6c16bSSara Sharon */ 2036310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 2037310181ecSSara Sharon int queue = iwl_mvm_tvqm_enable_txq(mvm, vif->cab_queue, 2038310181ecSSara Sharon msta->sta_id, 2039310181ecSSara Sharon IWL_MAX_TID_COUNT, 204026d6c16bSSara Sharon timeout); 2041e2af3fabSSara Sharon mvmvif->cab_queue = queue; 2042ced19f26SSara Sharon } else if (!fw_has_api(&mvm->fw->ucode_capa, 2043ced19f26SSara Sharon IWL_UCODE_TLV_API_STA_TYPE)) { 2044ee48b722SLiad Kaufman /* 2045ee48b722SLiad Kaufman * In IBSS, ieee80211_check_queues() sets the cab_queue to be 2046ee48b722SLiad Kaufman * invalid, so make sure we use the queue we want. 2047ee48b722SLiad Kaufman * Note that this is done here as we want to avoid making DQA 2048ee48b722SLiad Kaufman * changes in mac80211 layer. 2049ee48b722SLiad Kaufman */ 2050ee48b722SLiad Kaufman if (vif->type == NL80211_IFTYPE_ADHOC) { 2051ee48b722SLiad Kaufman vif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE; 2052ee48b722SLiad Kaufman mvmvif->cab_queue = vif->cab_queue; 2053ee48b722SLiad Kaufman } 2054310181ecSSara Sharon iwl_mvm_enable_txq(mvm, vif->cab_queue, vif->cab_queue, 0, 2055310181ecSSara Sharon &cfg, timeout); 2056310181ecSSara Sharon } 205726d6c16bSSara Sharon 205826d6c16bSSara Sharon return 0; 205926d6c16bSSara Sharon } 206026d6c16bSSara Sharon 206126d6c16bSSara Sharon /* 206226d6c16bSSara Sharon * Send the FW a request to remove the station from it's internal data 206326d6c16bSSara Sharon * structures, and in addition remove it from the local data structure. 206426d6c16bSSara Sharon */ 206526d6c16bSSara Sharon int iwl_mvm_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 206626d6c16bSSara Sharon { 206726d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 206826d6c16bSSara Sharon int ret; 206926d6c16bSSara Sharon 207026d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 207126d6c16bSSara Sharon 2072d49394a1SSara Sharon iwl_mvm_flush_sta(mvm, &mvmvif->mcast_sta, true, 0); 2073d49394a1SSara Sharon 2074e2af3fabSSara Sharon iwl_mvm_disable_txq(mvm, mvmvif->cab_queue, vif->cab_queue, 207526d6c16bSSara Sharon IWL_MAX_TID_COUNT, 0); 207626d6c16bSSara Sharon 207726d6c16bSSara Sharon ret = iwl_mvm_rm_sta_common(mvm, mvmvif->mcast_sta.sta_id); 207826d6c16bSSara Sharon if (ret) 207926d6c16bSSara Sharon IWL_WARN(mvm, "Failed sending remove station\n"); 208026d6c16bSSara Sharon 208126d6c16bSSara Sharon return ret; 208226d6c16bSSara Sharon } 208326d6c16bSSara Sharon 2084e705c121SKalle Valo #define IWL_MAX_RX_BA_SESSIONS 16 2085e705c121SKalle Valo 2086b915c101SSara Sharon static void iwl_mvm_sync_rxq_del_ba(struct iwl_mvm *mvm, u8 baid) 208710b2b201SSara Sharon { 2088b915c101SSara Sharon struct iwl_mvm_delba_notif notif = { 2089b915c101SSara Sharon .metadata.type = IWL_MVM_RXQ_NOTIF_DEL_BA, 2090b915c101SSara Sharon .metadata.sync = 1, 2091b915c101SSara Sharon .delba.baid = baid, 2092b915c101SSara Sharon }; 2093b915c101SSara Sharon iwl_mvm_sync_rx_queues_internal(mvm, (void *)¬if, sizeof(notif)); 209410b2b201SSara Sharon }; 209510b2b201SSara Sharon 2096b915c101SSara Sharon static void iwl_mvm_free_reorder(struct iwl_mvm *mvm, 2097b915c101SSara Sharon struct iwl_mvm_baid_data *data) 2098b915c101SSara Sharon { 2099b915c101SSara Sharon int i; 2100b915c101SSara Sharon 2101b915c101SSara Sharon iwl_mvm_sync_rxq_del_ba(mvm, data->baid); 2102b915c101SSara Sharon 2103b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2104b915c101SSara Sharon int j; 2105b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2106b915c101SSara Sharon &data->reorder_buf[i]; 2107b915c101SSara Sharon 21080690405fSSara Sharon spin_lock_bh(&reorder_buf->lock); 21090690405fSSara Sharon if (likely(!reorder_buf->num_stored)) { 21100690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 2111b915c101SSara Sharon continue; 21120690405fSSara Sharon } 2113b915c101SSara Sharon 2114b915c101SSara Sharon /* 2115b915c101SSara Sharon * This shouldn't happen in regular DELBA since the internal 2116b915c101SSara Sharon * delBA notification should trigger a release of all frames in 2117b915c101SSara Sharon * the reorder buffer. 2118b915c101SSara Sharon */ 2119b915c101SSara Sharon WARN_ON(1); 2120b915c101SSara Sharon 2121b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2122b915c101SSara Sharon __skb_queue_purge(&reorder_buf->entries[j]); 21230690405fSSara Sharon /* 21240690405fSSara Sharon * Prevent timer re-arm. This prevents a very far fetched case 21250690405fSSara Sharon * where we timed out on the notification. There may be prior 21260690405fSSara Sharon * RX frames pending in the RX queue before the notification 21270690405fSSara Sharon * that might get processed between now and the actual deletion 21280690405fSSara Sharon * and we would re-arm the timer although we are deleting the 21290690405fSSara Sharon * reorder buffer. 21300690405fSSara Sharon */ 21310690405fSSara Sharon reorder_buf->removed = true; 21320690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 21330690405fSSara Sharon del_timer_sync(&reorder_buf->reorder_timer); 2134b915c101SSara Sharon } 2135b915c101SSara Sharon } 2136b915c101SSara Sharon 2137b915c101SSara Sharon static void iwl_mvm_init_reorder_buffer(struct iwl_mvm *mvm, 2138b915c101SSara Sharon u32 sta_id, 2139b915c101SSara Sharon struct iwl_mvm_baid_data *data, 2140b915c101SSara Sharon u16 ssn, u8 buf_size) 2141b915c101SSara Sharon { 2142b915c101SSara Sharon int i; 2143b915c101SSara Sharon 2144b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2145b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2146b915c101SSara Sharon &data->reorder_buf[i]; 2147b915c101SSara Sharon int j; 2148b915c101SSara Sharon 2149b915c101SSara Sharon reorder_buf->num_stored = 0; 2150b915c101SSara Sharon reorder_buf->head_sn = ssn; 2151b915c101SSara Sharon reorder_buf->buf_size = buf_size; 21520690405fSSara Sharon /* rx reorder timer */ 21530690405fSSara Sharon reorder_buf->reorder_timer.function = 21540690405fSSara Sharon iwl_mvm_reorder_timer_expired; 21550690405fSSara Sharon reorder_buf->reorder_timer.data = (unsigned long)reorder_buf; 21560690405fSSara Sharon init_timer(&reorder_buf->reorder_timer); 21570690405fSSara Sharon spin_lock_init(&reorder_buf->lock); 21580690405fSSara Sharon reorder_buf->mvm = mvm; 2159b915c101SSara Sharon reorder_buf->queue = i; 2160b915c101SSara Sharon reorder_buf->sta_id = sta_id; 21615d43eab6SSara Sharon reorder_buf->valid = false; 2162b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2163b915c101SSara Sharon __skb_queue_head_init(&reorder_buf->entries[j]); 2164b915c101SSara Sharon } 216510b2b201SSara Sharon } 216610b2b201SSara Sharon 2167e705c121SKalle Valo int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 216810b2b201SSara Sharon int tid, u16 ssn, bool start, u8 buf_size, u16 timeout) 2169e705c121SKalle Valo { 2170e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2171e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 217210b2b201SSara Sharon struct iwl_mvm_baid_data *baid_data = NULL; 2173e705c121SKalle Valo int ret; 2174e705c121SKalle Valo u32 status; 2175e705c121SKalle Valo 2176e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2177e705c121SKalle Valo 2178e705c121SKalle Valo if (start && mvm->rx_ba_sessions >= IWL_MAX_RX_BA_SESSIONS) { 2179e705c121SKalle Valo IWL_WARN(mvm, "Not enough RX BA SESSIONS\n"); 2180e705c121SKalle Valo return -ENOSPC; 2181e705c121SKalle Valo } 2182e705c121SKalle Valo 218310b2b201SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && start) { 218410b2b201SSara Sharon /* 218510b2b201SSara Sharon * Allocate here so if allocation fails we can bail out early 218610b2b201SSara Sharon * before starting the BA session in the firmware 218710b2b201SSara Sharon */ 2188b915c101SSara Sharon baid_data = kzalloc(sizeof(*baid_data) + 2189b915c101SSara Sharon mvm->trans->num_rx_queues * 2190b915c101SSara Sharon sizeof(baid_data->reorder_buf[0]), 2191b915c101SSara Sharon GFP_KERNEL); 219210b2b201SSara Sharon if (!baid_data) 219310b2b201SSara Sharon return -ENOMEM; 219410b2b201SSara Sharon } 219510b2b201SSara Sharon 2196e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 2197e705c121SKalle Valo cmd.sta_id = mvm_sta->sta_id; 2198e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 2199e705c121SKalle Valo if (start) { 2200e705c121SKalle Valo cmd.add_immediate_ba_tid = (u8) tid; 2201e705c121SKalle Valo cmd.add_immediate_ba_ssn = cpu_to_le16(ssn); 2202854c5705SSara Sharon cmd.rx_ba_window = cpu_to_le16((u16)buf_size); 2203e705c121SKalle Valo } else { 2204e705c121SKalle Valo cmd.remove_immediate_ba_tid = (u8) tid; 2205e705c121SKalle Valo } 2206e705c121SKalle Valo cmd.modify_mask = start ? STA_MODIFY_ADD_BA_TID : 2207e705c121SKalle Valo STA_MODIFY_REMOVE_BA_TID; 2208e705c121SKalle Valo 2209e705c121SKalle Valo status = ADD_STA_SUCCESS; 2210854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 2211854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 2212e705c121SKalle Valo &cmd, &status); 2213e705c121SKalle Valo if (ret) 221410b2b201SSara Sharon goto out_free; 2215e705c121SKalle Valo 2216837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 2217e705c121SKalle Valo case ADD_STA_SUCCESS: 221835263a03SSara Sharon IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n", 2219e705c121SKalle Valo start ? "start" : "stopp"); 2220e705c121SKalle Valo break; 2221e705c121SKalle Valo case ADD_STA_IMMEDIATE_BA_FAILURE: 2222e705c121SKalle Valo IWL_WARN(mvm, "RX BA Session refused by fw\n"); 2223e705c121SKalle Valo ret = -ENOSPC; 2224e705c121SKalle Valo break; 2225e705c121SKalle Valo default: 2226e705c121SKalle Valo ret = -EIO; 2227e705c121SKalle Valo IWL_ERR(mvm, "RX BA Session failed %sing, status 0x%x\n", 2228e705c121SKalle Valo start ? "start" : "stopp", status); 2229e705c121SKalle Valo break; 2230e705c121SKalle Valo } 2231e705c121SKalle Valo 223210b2b201SSara Sharon if (ret) 223310b2b201SSara Sharon goto out_free; 223410b2b201SSara Sharon 223510b2b201SSara Sharon if (start) { 223610b2b201SSara Sharon u8 baid; 223710b2b201SSara Sharon 2238e705c121SKalle Valo mvm->rx_ba_sessions++; 223910b2b201SSara Sharon 224010b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 224110b2b201SSara Sharon return 0; 224210b2b201SSara Sharon 224310b2b201SSara Sharon if (WARN_ON(!(status & IWL_ADD_STA_BAID_VALID_MASK))) { 224410b2b201SSara Sharon ret = -EINVAL; 224510b2b201SSara Sharon goto out_free; 224610b2b201SSara Sharon } 224710b2b201SSara Sharon baid = (u8)((status & IWL_ADD_STA_BAID_MASK) >> 224810b2b201SSara Sharon IWL_ADD_STA_BAID_SHIFT); 224910b2b201SSara Sharon baid_data->baid = baid; 225010b2b201SSara Sharon baid_data->timeout = timeout; 225110b2b201SSara Sharon baid_data->last_rx = jiffies; 225272c240feSWei Yongjun setup_timer(&baid_data->session_timer, 225372c240feSWei Yongjun iwl_mvm_rx_agg_session_expired, 225472c240feSWei Yongjun (unsigned long)&mvm->baid_map[baid]); 225510b2b201SSara Sharon baid_data->mvm = mvm; 225610b2b201SSara Sharon baid_data->tid = tid; 225710b2b201SSara Sharon baid_data->sta_id = mvm_sta->sta_id; 225810b2b201SSara Sharon 225910b2b201SSara Sharon mvm_sta->tid_to_baid[tid] = baid; 226010b2b201SSara Sharon if (timeout) 226110b2b201SSara Sharon mod_timer(&baid_data->session_timer, 226210b2b201SSara Sharon TU_TO_EXP_TIME(timeout * 2)); 226310b2b201SSara Sharon 2264b915c101SSara Sharon iwl_mvm_init_reorder_buffer(mvm, mvm_sta->sta_id, 2265b915c101SSara Sharon baid_data, ssn, buf_size); 226610b2b201SSara Sharon /* 226710b2b201SSara Sharon * protect the BA data with RCU to cover a case where our 226810b2b201SSara Sharon * internal RX sync mechanism will timeout (not that it's 226910b2b201SSara Sharon * supposed to happen) and we will free the session data while 227010b2b201SSara Sharon * RX is being processed in parallel 227110b2b201SSara Sharon */ 227235263a03SSara Sharon IWL_DEBUG_HT(mvm, "Sta %d(%d) is assigned to BAID %d\n", 227335263a03SSara Sharon mvm_sta->sta_id, tid, baid); 227410b2b201SSara Sharon WARN_ON(rcu_access_pointer(mvm->baid_map[baid])); 227510b2b201SSara Sharon rcu_assign_pointer(mvm->baid_map[baid], baid_data); 227660dec523SSara Sharon } else { 227710b2b201SSara Sharon u8 baid = mvm_sta->tid_to_baid[tid]; 227810b2b201SSara Sharon 227960dec523SSara Sharon if (mvm->rx_ba_sessions > 0) 2280e705c121SKalle Valo /* check that restart flow didn't zero the counter */ 2281e705c121SKalle Valo mvm->rx_ba_sessions--; 228210b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 228310b2b201SSara Sharon return 0; 2284e705c121SKalle Valo 228510b2b201SSara Sharon if (WARN_ON(baid == IWL_RX_REORDER_DATA_INVALID_BAID)) 228610b2b201SSara Sharon return -EINVAL; 228710b2b201SSara Sharon 228810b2b201SSara Sharon baid_data = rcu_access_pointer(mvm->baid_map[baid]); 228910b2b201SSara Sharon if (WARN_ON(!baid_data)) 229010b2b201SSara Sharon return -EINVAL; 229110b2b201SSara Sharon 229210b2b201SSara Sharon /* synchronize all rx queues so we can safely delete */ 2293b915c101SSara Sharon iwl_mvm_free_reorder(mvm, baid_data); 229410b2b201SSara Sharon del_timer_sync(&baid_data->session_timer); 229510b2b201SSara Sharon RCU_INIT_POINTER(mvm->baid_map[baid], NULL); 229610b2b201SSara Sharon kfree_rcu(baid_data, rcu_head); 229735263a03SSara Sharon IWL_DEBUG_HT(mvm, "BAID %d is free\n", baid); 229810b2b201SSara Sharon } 229910b2b201SSara Sharon return 0; 230010b2b201SSara Sharon 230110b2b201SSara Sharon out_free: 230210b2b201SSara Sharon kfree(baid_data); 2303e705c121SKalle Valo return ret; 2304e705c121SKalle Valo } 2305e705c121SKalle Valo 23069794c64fSLiad Kaufman int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2307e705c121SKalle Valo int tid, u8 queue, bool start) 2308e705c121SKalle Valo { 2309e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2310e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 2311e705c121SKalle Valo int ret; 2312e705c121SKalle Valo u32 status; 2313e705c121SKalle Valo 2314e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2315e705c121SKalle Valo 2316e705c121SKalle Valo if (start) { 2317e705c121SKalle Valo mvm_sta->tfd_queue_msk |= BIT(queue); 2318e705c121SKalle Valo mvm_sta->tid_disable_agg &= ~BIT(tid); 2319e705c121SKalle Valo } else { 2320cf961e16SLiad Kaufman /* In DQA-mode the queue isn't removed on agg termination */ 2321e705c121SKalle Valo mvm_sta->tid_disable_agg |= BIT(tid); 2322e705c121SKalle Valo } 2323e705c121SKalle Valo 2324e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 2325e705c121SKalle Valo cmd.sta_id = mvm_sta->sta_id; 2326e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 2327bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) 2328bb49701bSSara Sharon cmd.modify_mask = STA_MODIFY_QUEUES; 2329bb49701bSSara Sharon cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 2330e705c121SKalle Valo cmd.tfd_queue_msk = cpu_to_le32(mvm_sta->tfd_queue_msk); 2331e705c121SKalle Valo cmd.tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg); 2332e705c121SKalle Valo 2333e705c121SKalle Valo status = ADD_STA_SUCCESS; 2334854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 2335854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 2336e705c121SKalle Valo &cmd, &status); 2337e705c121SKalle Valo if (ret) 2338e705c121SKalle Valo return ret; 2339e705c121SKalle Valo 2340837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 2341e705c121SKalle Valo case ADD_STA_SUCCESS: 2342e705c121SKalle Valo break; 2343e705c121SKalle Valo default: 2344e705c121SKalle Valo ret = -EIO; 2345e705c121SKalle Valo IWL_ERR(mvm, "TX BA Session failed %sing, status 0x%x\n", 2346e705c121SKalle Valo start ? "start" : "stopp", status); 2347e705c121SKalle Valo break; 2348e705c121SKalle Valo } 2349e705c121SKalle Valo 2350e705c121SKalle Valo return ret; 2351e705c121SKalle Valo } 2352e705c121SKalle Valo 2353e705c121SKalle Valo const u8 tid_to_mac80211_ac[] = { 2354e705c121SKalle Valo IEEE80211_AC_BE, 2355e705c121SKalle Valo IEEE80211_AC_BK, 2356e705c121SKalle Valo IEEE80211_AC_BK, 2357e705c121SKalle Valo IEEE80211_AC_BE, 2358e705c121SKalle Valo IEEE80211_AC_VI, 2359e705c121SKalle Valo IEEE80211_AC_VI, 2360e705c121SKalle Valo IEEE80211_AC_VO, 2361e705c121SKalle Valo IEEE80211_AC_VO, 23629794c64fSLiad Kaufman IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 2363e705c121SKalle Valo }; 2364e705c121SKalle Valo 2365e705c121SKalle Valo static const u8 tid_to_ucode_ac[] = { 2366e705c121SKalle Valo AC_BE, 2367e705c121SKalle Valo AC_BK, 2368e705c121SKalle Valo AC_BK, 2369e705c121SKalle Valo AC_BE, 2370e705c121SKalle Valo AC_VI, 2371e705c121SKalle Valo AC_VI, 2372e705c121SKalle Valo AC_VO, 2373e705c121SKalle Valo AC_VO, 2374e705c121SKalle Valo }; 2375e705c121SKalle Valo 2376e705c121SKalle Valo int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2377e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 *ssn) 2378e705c121SKalle Valo { 2379e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2380e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 2381dd32162dSLiad Kaufman u16 normalized_ssn; 2382e705c121SKalle Valo int txq_id; 2383e705c121SKalle Valo int ret; 2384e705c121SKalle Valo 2385e705c121SKalle Valo if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT)) 2386e705c121SKalle Valo return -EINVAL; 2387e705c121SKalle Valo 2388bd800e41SNaftali Goldstein if (mvmsta->tid_data[tid].state != IWL_AGG_QUEUED && 2389bd800e41SNaftali Goldstein mvmsta->tid_data[tid].state != IWL_AGG_OFF) { 2390bd800e41SNaftali Goldstein IWL_ERR(mvm, 2391bd800e41SNaftali Goldstein "Start AGG when state is not IWL_AGG_QUEUED or IWL_AGG_OFF %d!\n", 2392e705c121SKalle Valo mvmsta->tid_data[tid].state); 2393e705c121SKalle Valo return -ENXIO; 2394e705c121SKalle Valo } 2395e705c121SKalle Valo 2396e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2397e705c121SKalle Valo 2398e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2399e705c121SKalle Valo 2400e705c121SKalle Valo /* possible race condition - we entered D0i3 while starting agg */ 2401e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) { 2402e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2403e705c121SKalle Valo IWL_ERR(mvm, "Entered D0i3 while starting Tx agg\n"); 2404e705c121SKalle Valo return -EIO; 2405e705c121SKalle Valo } 2406e705c121SKalle Valo 24079f9af3d7SLiad Kaufman spin_lock(&mvm->queue_info_lock); 2408e705c121SKalle Valo 2409cf961e16SLiad Kaufman /* 2410cf961e16SLiad Kaufman * Note the possible cases: 2411cf961e16SLiad Kaufman * 1. In DQA mode with an enabled TXQ - TXQ needs to become agg'ed 2412cf961e16SLiad Kaufman * 2. Non-DQA mode: the TXQ hasn't yet been enabled, so find a free 2413cf961e16SLiad Kaufman * one and mark it as reserved 2414cf961e16SLiad Kaufman * 3. In DQA mode, but no traffic yet on this TID: same treatment as in 2415cf961e16SLiad Kaufman * non-DQA mode, since the TXQ hasn't yet been allocated 241634e10860SSara Sharon * Don't support case 3 for new TX path as it is not expected to happen 241734e10860SSara Sharon * and aggregation will be offloaded soon anyway 2418cf961e16SLiad Kaufman */ 2419cf961e16SLiad Kaufman txq_id = mvmsta->tid_data[tid].txq_id; 242034e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 242134e10860SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) { 242234e10860SSara Sharon ret = -ENXIO; 242334e10860SSara Sharon goto release_locks; 242434e10860SSara Sharon } 2425c8f54701SJohannes Berg } else if (unlikely(mvm->queue_info[txq_id].status == 242634e10860SSara Sharon IWL_MVM_QUEUE_SHARED)) { 24279f9af3d7SLiad Kaufman ret = -ENXIO; 24289f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 24299f9af3d7SLiad Kaufman "Can't start tid %d agg on shared queue!\n", 24309f9af3d7SLiad Kaufman tid); 24319f9af3d7SLiad Kaufman goto release_locks; 2432c8f54701SJohannes Berg } else if (mvm->queue_info[txq_id].status != IWL_MVM_QUEUE_READY) { 24339794c64fSLiad Kaufman txq_id = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 2434c8f54701SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 2435c8f54701SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 2436e705c121SKalle Valo if (txq_id < 0) { 2437e705c121SKalle Valo ret = txq_id; 2438e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate agg queue\n"); 2439e705c121SKalle Valo goto release_locks; 2440e705c121SKalle Valo } 244101796ff2SSara Sharon /* 244201796ff2SSara Sharon * TXQ shouldn't be in inactive mode for non-DQA, so getting 244301796ff2SSara Sharon * an inactive queue from iwl_mvm_find_free_queue() is 244401796ff2SSara Sharon * certainly a bug 244501796ff2SSara Sharon */ 244601796ff2SSara Sharon WARN_ON(mvm->queue_info[txq_id].status == 244701796ff2SSara Sharon IWL_MVM_QUEUE_INACTIVE); 2448cf961e16SLiad Kaufman 2449cf961e16SLiad Kaufman /* TXQ hasn't yet been enabled, so mark it only as reserved */ 2450cf961e16SLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_RESERVED; 2451cf961e16SLiad Kaufman } 24529f9af3d7SLiad Kaufman 24539f9af3d7SLiad Kaufman spin_unlock(&mvm->queue_info_lock); 2454e705c121SKalle Valo 2455cf961e16SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 2456cf961e16SLiad Kaufman "AGG for tid %d will be on queue #%d\n", 2457cf961e16SLiad Kaufman tid, txq_id); 2458cf961e16SLiad Kaufman 2459e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 2460e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 2461e705c121SKalle Valo tid_data->txq_id = txq_id; 2462e705c121SKalle Valo *ssn = tid_data->ssn; 2463e705c121SKalle Valo 2464e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 2465e705c121SKalle Valo "Start AGG: sta %d tid %d queue %d - ssn = %d, next_recl = %d\n", 2466e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->ssn, 2467e705c121SKalle Valo tid_data->next_reclaimed); 2468e705c121SKalle Valo 2469dd32162dSLiad Kaufman /* 2470dd32162dSLiad Kaufman * In A000 HW, the next_reclaimed index is only 8 bit, so we'll need 2471dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 2472dd32162dSLiad Kaufman */ 2473dd32162dSLiad Kaufman normalized_ssn = tid_data->ssn; 2474dd32162dSLiad Kaufman if (mvm->trans->cfg->gen2) 2475dd32162dSLiad Kaufman normalized_ssn &= 0xff; 2476dd32162dSLiad Kaufman 2477dd32162dSLiad Kaufman if (normalized_ssn == tid_data->next_reclaimed) { 2478e705c121SKalle Valo tid_data->state = IWL_AGG_STARTING; 2479e705c121SKalle Valo ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); 2480e705c121SKalle Valo } else { 2481e705c121SKalle Valo tid_data->state = IWL_EMPTYING_HW_QUEUE_ADDBA; 2482e705c121SKalle Valo } 2483e705c121SKalle Valo 2484e705c121SKalle Valo ret = 0; 24859f9af3d7SLiad Kaufman goto out; 2486e705c121SKalle Valo 2487e705c121SKalle Valo release_locks: 24889f9af3d7SLiad Kaufman spin_unlock(&mvm->queue_info_lock); 24899f9af3d7SLiad Kaufman out: 2490e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2491e705c121SKalle Valo 2492e705c121SKalle Valo return ret; 2493e705c121SKalle Valo } 2494e705c121SKalle Valo 2495e705c121SKalle Valo int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2496bb81bb68SEmmanuel Grumbach struct ieee80211_sta *sta, u16 tid, u8 buf_size, 2497bb81bb68SEmmanuel Grumbach bool amsdu) 2498e705c121SKalle Valo { 2499e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2500e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2501e705c121SKalle Valo unsigned int wdg_timeout = 2502e705c121SKalle Valo iwl_mvm_get_wd_timeout(mvm, vif, sta->tdls, false); 2503eea76c36SEmmanuel Grumbach int queue, ret; 2504cf961e16SLiad Kaufman bool alloc_queue = true; 25059f9af3d7SLiad Kaufman enum iwl_mvm_queue_status queue_status; 2506e705c121SKalle Valo u16 ssn; 2507e705c121SKalle Valo 2508eea76c36SEmmanuel Grumbach struct iwl_trans_txq_scd_cfg cfg = { 2509eea76c36SEmmanuel Grumbach .sta_id = mvmsta->sta_id, 2510eea76c36SEmmanuel Grumbach .tid = tid, 2511eea76c36SEmmanuel Grumbach .frame_limit = buf_size, 2512eea76c36SEmmanuel Grumbach .aggregate = true, 2513eea76c36SEmmanuel Grumbach }; 2514eea76c36SEmmanuel Grumbach 2515e705c121SKalle Valo BUILD_BUG_ON((sizeof(mvmsta->agg_tids) * BITS_PER_BYTE) 2516e705c121SKalle Valo != IWL_MAX_TID_COUNT); 2517e705c121SKalle Valo 2518a58bb468SLiad Kaufman if (!mvm->trans->cfg->gen2) 2519e705c121SKalle Valo buf_size = min_t(int, buf_size, LINK_QUAL_AGG_FRAME_LIMIT_DEF); 2520a58bb468SLiad Kaufman else 2521a58bb468SLiad Kaufman buf_size = min_t(int, buf_size, 2522a58bb468SLiad Kaufman LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF); 2523e705c121SKalle Valo 2524e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2525e705c121SKalle Valo ssn = tid_data->ssn; 2526e705c121SKalle Valo queue = tid_data->txq_id; 2527e705c121SKalle Valo tid_data->state = IWL_AGG_ON; 2528e705c121SKalle Valo mvmsta->agg_tids |= BIT(tid); 2529e705c121SKalle Valo tid_data->ssn = 0xffff; 2530bb81bb68SEmmanuel Grumbach tid_data->amsdu_in_ampdu_allowed = amsdu; 2531e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2532e705c121SKalle Valo 253334e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 253434e10860SSara Sharon /* 253534e10860SSara Sharon * If no queue iwl_mvm_sta_tx_agg_start() would have failed so 253634e10860SSara Sharon * no need to check queue's status 253734e10860SSara Sharon */ 253834e10860SSara Sharon if (buf_size < mvmsta->max_agg_bufsize) 253934e10860SSara Sharon return -ENOTSUPP; 254034e10860SSara Sharon 254134e10860SSara Sharon ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 254234e10860SSara Sharon if (ret) 254334e10860SSara Sharon return -EIO; 254434e10860SSara Sharon goto out; 254534e10860SSara Sharon } 254634e10860SSara Sharon 2547eea76c36SEmmanuel Grumbach cfg.fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 2548e705c121SKalle Valo 25499f9af3d7SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 25509f9af3d7SLiad Kaufman queue_status = mvm->queue_info[queue].status; 25519f9af3d7SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 25529f9af3d7SLiad Kaufman 2553cf961e16SLiad Kaufman /* Maybe there is no need to even alloc a queue... */ 2554cf961e16SLiad Kaufman if (mvm->queue_info[queue].status == IWL_MVM_QUEUE_READY) 2555cf961e16SLiad Kaufman alloc_queue = false; 2556cf961e16SLiad Kaufman 2557cf961e16SLiad Kaufman /* 2558cf961e16SLiad Kaufman * Only reconfig the SCD for the queue if the window size has 2559cf961e16SLiad Kaufman * changed from current (become smaller) 2560cf961e16SLiad Kaufman */ 2561cf961e16SLiad Kaufman if (!alloc_queue && buf_size < mvmsta->max_agg_bufsize) { 2562cf961e16SLiad Kaufman /* 2563cf961e16SLiad Kaufman * If reconfiguring an existing queue, it first must be 2564cf961e16SLiad Kaufman * drained 2565cf961e16SLiad Kaufman */ 2566a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 2567cf961e16SLiad Kaufman BIT(queue)); 2568cf961e16SLiad Kaufman if (ret) { 2569cf961e16SLiad Kaufman IWL_ERR(mvm, 2570cf961e16SLiad Kaufman "Error draining queue before reconfig\n"); 2571cf961e16SLiad Kaufman return ret; 2572cf961e16SLiad Kaufman } 2573cf961e16SLiad Kaufman 2574cf961e16SLiad Kaufman ret = iwl_mvm_reconfig_scd(mvm, queue, cfg.fifo, 2575cf961e16SLiad Kaufman mvmsta->sta_id, tid, 2576cf961e16SLiad Kaufman buf_size, ssn); 2577cf961e16SLiad Kaufman if (ret) { 2578cf961e16SLiad Kaufman IWL_ERR(mvm, 2579cf961e16SLiad Kaufman "Error reconfiguring TXQ #%d\n", queue); 2580cf961e16SLiad Kaufman return ret; 2581cf961e16SLiad Kaufman } 2582cf961e16SLiad Kaufman } 2583cf961e16SLiad Kaufman 2584cf961e16SLiad Kaufman if (alloc_queue) 2585cf961e16SLiad Kaufman iwl_mvm_enable_txq(mvm, queue, 2586cf961e16SLiad Kaufman vif->hw_queue[tid_to_mac80211_ac[tid]], ssn, 2587cf961e16SLiad Kaufman &cfg, wdg_timeout); 2588e705c121SKalle Valo 25899f9af3d7SLiad Kaufman /* Send ADD_STA command to enable aggs only if the queue isn't shared */ 25909f9af3d7SLiad Kaufman if (queue_status != IWL_MVM_QUEUE_SHARED) { 2591e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 2592e705c121SKalle Valo if (ret) 2593e705c121SKalle Valo return -EIO; 25949f9af3d7SLiad Kaufman } 2595e705c121SKalle Valo 2596e705c121SKalle Valo /* No need to mark as reserved */ 2597e705c121SKalle Valo spin_lock_bh(&mvm->queue_info_lock); 2598cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 2599e705c121SKalle Valo spin_unlock_bh(&mvm->queue_info_lock); 2600e705c121SKalle Valo 260134e10860SSara Sharon out: 2602e705c121SKalle Valo /* 2603e705c121SKalle Valo * Even though in theory the peer could have different 2604e705c121SKalle Valo * aggregation reorder buffer sizes for different sessions, 2605e705c121SKalle Valo * our ucode doesn't allow for that and has a global limit 2606e705c121SKalle Valo * for each station. Therefore, use the minimum of all the 2607e705c121SKalle Valo * aggregation sessions and our default value. 2608e705c121SKalle Valo */ 2609e705c121SKalle Valo mvmsta->max_agg_bufsize = 2610e705c121SKalle Valo min(mvmsta->max_agg_bufsize, buf_size); 2611e705c121SKalle Valo mvmsta->lq_sta.lq.agg_frame_cnt_limit = mvmsta->max_agg_bufsize; 2612e705c121SKalle Valo 2613e705c121SKalle Valo IWL_DEBUG_HT(mvm, "Tx aggregation enabled on ra = %pM tid = %d\n", 2614e705c121SKalle Valo sta->addr, tid); 2615e705c121SKalle Valo 2616e705c121SKalle Valo return iwl_mvm_send_lq_cmd(mvm, &mvmsta->lq_sta.lq, false); 2617e705c121SKalle Valo } 2618e705c121SKalle Valo 261934e10860SSara Sharon static void iwl_mvm_unreserve_agg_queue(struct iwl_mvm *mvm, 262034e10860SSara Sharon struct iwl_mvm_sta *mvmsta, 262134e10860SSara Sharon u16 txq_id) 262234e10860SSara Sharon { 262334e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 262434e10860SSara Sharon return; 262534e10860SSara Sharon 262634e10860SSara Sharon spin_lock_bh(&mvm->queue_info_lock); 262734e10860SSara Sharon /* 262834e10860SSara Sharon * The TXQ is marked as reserved only if no traffic came through yet 262934e10860SSara Sharon * This means no traffic has been sent on this TID (agg'd or not), so 263034e10860SSara Sharon * we no longer have use for the queue. Since it hasn't even been 263134e10860SSara Sharon * allocated through iwl_mvm_enable_txq, so we can just mark it back as 263234e10860SSara Sharon * free. 263334e10860SSara Sharon */ 263434e10860SSara Sharon if (mvm->queue_info[txq_id].status == IWL_MVM_QUEUE_RESERVED) 263534e10860SSara Sharon mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_FREE; 263634e10860SSara Sharon 263734e10860SSara Sharon spin_unlock_bh(&mvm->queue_info_lock); 263834e10860SSara Sharon } 263934e10860SSara Sharon 2640e705c121SKalle Valo int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2641e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 2642e705c121SKalle Valo { 2643e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2644e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2645e705c121SKalle Valo u16 txq_id; 2646e705c121SKalle Valo int err; 2647e705c121SKalle Valo 2648e705c121SKalle Valo /* 2649e705c121SKalle Valo * If mac80211 is cleaning its state, then say that we finished since 2650e705c121SKalle Valo * our state has been cleared anyway. 2651e705c121SKalle Valo */ 2652e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 2653e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 2654e705c121SKalle Valo return 0; 2655e705c121SKalle Valo } 2656e705c121SKalle Valo 2657e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2658e705c121SKalle Valo 2659e705c121SKalle Valo txq_id = tid_data->txq_id; 2660e705c121SKalle Valo 2661e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Stop AGG: sta %d tid %d q %d state %d\n", 2662e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 2663e705c121SKalle Valo 2664e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 2665e705c121SKalle Valo 266634e10860SSara Sharon iwl_mvm_unreserve_agg_queue(mvm, mvmsta, txq_id); 2667e705c121SKalle Valo 2668e705c121SKalle Valo switch (tid_data->state) { 2669e705c121SKalle Valo case IWL_AGG_ON: 2670e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 2671e705c121SKalle Valo 2672e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 2673e705c121SKalle Valo "ssn = %d, next_recl = %d\n", 2674e705c121SKalle Valo tid_data->ssn, tid_data->next_reclaimed); 2675e705c121SKalle Valo 2676e705c121SKalle Valo tid_data->ssn = 0xffff; 2677e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 2678e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2679e705c121SKalle Valo 2680e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 2681e705c121SKalle Valo 2682e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 2683e705c121SKalle Valo return 0; 2684e705c121SKalle Valo case IWL_AGG_STARTING: 2685e705c121SKalle Valo case IWL_EMPTYING_HW_QUEUE_ADDBA: 2686e705c121SKalle Valo /* 2687e705c121SKalle Valo * The agg session has been stopped before it was set up. This 2688e705c121SKalle Valo * can happen when the AddBA timer times out for example. 2689e705c121SKalle Valo */ 2690e705c121SKalle Valo 2691e705c121SKalle Valo /* No barriers since we are under mutex */ 2692e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2693e705c121SKalle Valo 2694e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 2695e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 2696e705c121SKalle Valo err = 0; 2697e705c121SKalle Valo break; 2698e705c121SKalle Valo default: 2699e705c121SKalle Valo IWL_ERR(mvm, 2700e705c121SKalle Valo "Stopping AGG while state not ON or starting for %d on %d (%d)\n", 2701e705c121SKalle Valo mvmsta->sta_id, tid, tid_data->state); 2702e705c121SKalle Valo IWL_ERR(mvm, 2703e705c121SKalle Valo "\ttid_data->txq_id = %d\n", tid_data->txq_id); 2704e705c121SKalle Valo err = -EINVAL; 2705e705c121SKalle Valo } 2706e705c121SKalle Valo 2707e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2708e705c121SKalle Valo 2709e705c121SKalle Valo return err; 2710e705c121SKalle Valo } 2711e705c121SKalle Valo 2712e705c121SKalle Valo int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2713e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 2714e705c121SKalle Valo { 2715e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2716e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2717e705c121SKalle Valo u16 txq_id; 2718e705c121SKalle Valo enum iwl_mvm_agg_state old_state; 2719e705c121SKalle Valo 2720e705c121SKalle Valo /* 2721e705c121SKalle Valo * First set the agg state to OFF to avoid calling 2722e705c121SKalle Valo * ieee80211_stop_tx_ba_cb in iwl_mvm_check_ratid_empty. 2723e705c121SKalle Valo */ 2724e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2725e705c121SKalle Valo txq_id = tid_data->txq_id; 2726e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Flush AGG: sta %d tid %d q %d state %d\n", 2727e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 2728e705c121SKalle Valo old_state = tid_data->state; 2729e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 2730e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 2731e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2732e705c121SKalle Valo 273334e10860SSara Sharon iwl_mvm_unreserve_agg_queue(mvm, mvmsta, txq_id); 2734e705c121SKalle Valo 2735e705c121SKalle Valo if (old_state >= IWL_AGG_ON) { 2736e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, true); 2737d167e81aSMordechai Goodstein 2738d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) { 2739d167e81aSMordechai Goodstein if (iwl_mvm_flush_sta_tids(mvm, mvmsta->sta_id, 2740d167e81aSMordechai Goodstein BIT(tid), 0)) 2741d167e81aSMordechai Goodstein IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 2742d167e81aSMordechai Goodstein iwl_trans_wait_txq_empty(mvm->trans, txq_id); 2743d167e81aSMordechai Goodstein } else { 2744e705c121SKalle Valo if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id), 0)) 2745e705c121SKalle Valo IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 27460b90964aSSara Sharon iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(txq_id)); 2747d167e81aSMordechai Goodstein } 2748d6d517b7SSara Sharon 2749e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, false); 2750e705c121SKalle Valo 2751e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 2752e705c121SKalle Valo } 2753e705c121SKalle Valo 2754e705c121SKalle Valo return 0; 2755e705c121SKalle Valo } 2756e705c121SKalle Valo 2757e705c121SKalle Valo static int iwl_mvm_set_fw_key_idx(struct iwl_mvm *mvm) 2758e705c121SKalle Valo { 2759e705c121SKalle Valo int i, max = -1, max_offs = -1; 2760e705c121SKalle Valo 2761e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2762e705c121SKalle Valo 2763e705c121SKalle Valo /* Pick the unused key offset with the highest 'deleted' 2764e705c121SKalle Valo * counter. Every time a key is deleted, all the counters 2765e705c121SKalle Valo * are incremented and the one that was just deleted is 2766e705c121SKalle Valo * reset to zero. Thus, the highest counter is the one 2767e705c121SKalle Valo * that was deleted longest ago. Pick that one. 2768e705c121SKalle Valo */ 2769e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 2770e705c121SKalle Valo if (test_bit(i, mvm->fw_key_table)) 2771e705c121SKalle Valo continue; 2772e705c121SKalle Valo if (mvm->fw_key_deleted[i] > max) { 2773e705c121SKalle Valo max = mvm->fw_key_deleted[i]; 2774e705c121SKalle Valo max_offs = i; 2775e705c121SKalle Valo } 2776e705c121SKalle Valo } 2777e705c121SKalle Valo 2778e705c121SKalle Valo if (max_offs < 0) 2779e705c121SKalle Valo return STA_KEY_IDX_INVALID; 2780e705c121SKalle Valo 2781e705c121SKalle Valo return max_offs; 2782e705c121SKalle Valo } 2783e705c121SKalle Valo 27845f7a1847SJohannes Berg static struct iwl_mvm_sta *iwl_mvm_get_key_sta(struct iwl_mvm *mvm, 27854615fd15SEmmanuel Grumbach struct ieee80211_vif *vif, 2786e705c121SKalle Valo struct ieee80211_sta *sta) 2787e705c121SKalle Valo { 2788e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2789e705c121SKalle Valo 27905f7a1847SJohannes Berg if (sta) 27915f7a1847SJohannes Berg return iwl_mvm_sta_from_mac80211(sta); 2792e705c121SKalle Valo 2793e705c121SKalle Valo /* 2794e705c121SKalle Valo * The device expects GTKs for station interfaces to be 2795e705c121SKalle Valo * installed as GTKs for the AP station. If we have no 2796e705c121SKalle Valo * station ID, then use AP's station ID. 2797e705c121SKalle Valo */ 2798e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 27990ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 28004615fd15SEmmanuel Grumbach u8 sta_id = mvmvif->ap_sta_id; 28014615fd15SEmmanuel Grumbach 28027d6a1ab6SEmmanuel Grumbach sta = rcu_dereference_check(mvm->fw_id_to_mac_id[sta_id], 28037d6a1ab6SEmmanuel Grumbach lockdep_is_held(&mvm->mutex)); 28047d6a1ab6SEmmanuel Grumbach 28054615fd15SEmmanuel Grumbach /* 28064615fd15SEmmanuel Grumbach * It is possible that the 'sta' parameter is NULL, 28074615fd15SEmmanuel Grumbach * for example when a GTK is removed - the sta_id will then 28084615fd15SEmmanuel Grumbach * be the AP ID, and no station was passed by mac80211. 28094615fd15SEmmanuel Grumbach */ 28107d6a1ab6SEmmanuel Grumbach if (IS_ERR_OR_NULL(sta)) 28117d6a1ab6SEmmanuel Grumbach return NULL; 28127d6a1ab6SEmmanuel Grumbach 28137d6a1ab6SEmmanuel Grumbach return iwl_mvm_sta_from_mac80211(sta); 28144615fd15SEmmanuel Grumbach } 2815e705c121SKalle Valo 28165f7a1847SJohannes Berg return NULL; 2817e705c121SKalle Valo } 2818e705c121SKalle Valo 2819e705c121SKalle Valo static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm, 282085aeb58cSDavid Spinadel u32 sta_id, 282145c458b4SSara Sharon struct ieee80211_key_conf *key, bool mcast, 28224615fd15SEmmanuel Grumbach u32 tkip_iv32, u16 *tkip_p1k, u32 cmd_flags, 28234615fd15SEmmanuel Grumbach u8 key_offset) 2824e705c121SKalle Valo { 282545c458b4SSara Sharon union { 282645c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 282745c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd cmd; 282845c458b4SSara Sharon } u = {}; 2829e705c121SKalle Valo __le16 key_flags; 2830e705c121SKalle Valo int ret; 2831e705c121SKalle Valo u32 status; 2832e705c121SKalle Valo u16 keyidx; 283345c458b4SSara Sharon u64 pn = 0; 283445c458b4SSara Sharon int i, size; 283545c458b4SSara Sharon bool new_api = fw_has_api(&mvm->fw->ucode_capa, 283645c458b4SSara Sharon IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 2837e705c121SKalle Valo 283885aeb58cSDavid Spinadel if (sta_id == IWL_MVM_INVALID_STA) 283985aeb58cSDavid Spinadel return -EINVAL; 284085aeb58cSDavid Spinadel 284145c458b4SSara Sharon keyidx = (key->keyidx << STA_KEY_FLG_KEYID_POS) & 2842e705c121SKalle Valo STA_KEY_FLG_KEYID_MSK; 2843e705c121SKalle Valo key_flags = cpu_to_le16(keyidx); 2844e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_KEY_MAP); 2845e705c121SKalle Valo 284645c458b4SSara Sharon switch (key->cipher) { 2847e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 2848e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_TKIP); 284945c458b4SSara Sharon if (new_api) { 285045c458b4SSara Sharon memcpy((void *)&u.cmd.tx_mic_key, 285145c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], 285245c458b4SSara Sharon IWL_MIC_KEY_SIZE); 285345c458b4SSara Sharon 285445c458b4SSara Sharon memcpy((void *)&u.cmd.rx_mic_key, 285545c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], 285645c458b4SSara Sharon IWL_MIC_KEY_SIZE); 285745c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 285845c458b4SSara Sharon 285945c458b4SSara Sharon } else { 286045c458b4SSara Sharon u.cmd_v1.tkip_rx_tsc_byte2 = tkip_iv32; 2861e705c121SKalle Valo for (i = 0; i < 5; i++) 286245c458b4SSara Sharon u.cmd_v1.tkip_rx_ttak[i] = 286345c458b4SSara Sharon cpu_to_le16(tkip_p1k[i]); 286445c458b4SSara Sharon } 286545c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 2866e705c121SKalle Valo break; 2867e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 2868e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_CCM); 286945c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 287045c458b4SSara Sharon if (new_api) 287145c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 2872e705c121SKalle Valo break; 2873e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 2874e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_13BYTES); 2875e705c121SKalle Valo /* fall through */ 2876e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 2877e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP); 287845c458b4SSara Sharon memcpy(u.cmd.common.key + 3, key->key, key->keylen); 2879e705c121SKalle Valo break; 28802a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 28812a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_KEY_32BYTES); 28822a53d166SAyala Beker /* fall through */ 28832a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 28842a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_GCMP); 288545c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 288645c458b4SSara Sharon if (new_api) 288745c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 28882a53d166SAyala Beker break; 2889e705c121SKalle Valo default: 2890e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_EXT); 289145c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 2892e705c121SKalle Valo } 2893e705c121SKalle Valo 2894e705c121SKalle Valo if (mcast) 2895e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 2896e705c121SKalle Valo 289745c458b4SSara Sharon u.cmd.common.key_offset = key_offset; 289845c458b4SSara Sharon u.cmd.common.key_flags = key_flags; 289985aeb58cSDavid Spinadel u.cmd.common.sta_id = sta_id; 290045c458b4SSara Sharon 290145c458b4SSara Sharon if (new_api) { 290245c458b4SSara Sharon u.cmd.transmit_seq_cnt = cpu_to_le64(pn); 290345c458b4SSara Sharon size = sizeof(u.cmd); 290445c458b4SSara Sharon } else { 290545c458b4SSara Sharon size = sizeof(u.cmd_v1); 290645c458b4SSara Sharon } 2907e705c121SKalle Valo 2908e705c121SKalle Valo status = ADD_STA_SUCCESS; 2909e705c121SKalle Valo if (cmd_flags & CMD_ASYNC) 291045c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA_KEY, CMD_ASYNC, size, 291145c458b4SSara Sharon &u.cmd); 2912e705c121SKalle Valo else 291345c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, 291445c458b4SSara Sharon &u.cmd, &status); 2915e705c121SKalle Valo 2916e705c121SKalle Valo switch (status) { 2917e705c121SKalle Valo case ADD_STA_SUCCESS: 2918e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "MODIFY_STA: set dynamic key passed\n"); 2919e705c121SKalle Valo break; 2920e705c121SKalle Valo default: 2921e705c121SKalle Valo ret = -EIO; 2922e705c121SKalle Valo IWL_ERR(mvm, "MODIFY_STA: set dynamic key failed\n"); 2923e705c121SKalle Valo break; 2924e705c121SKalle Valo } 2925e705c121SKalle Valo 2926e705c121SKalle Valo return ret; 2927e705c121SKalle Valo } 2928e705c121SKalle Valo 2929e705c121SKalle Valo static int iwl_mvm_send_sta_igtk(struct iwl_mvm *mvm, 2930e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 2931e705c121SKalle Valo u8 sta_id, bool remove_key) 2932e705c121SKalle Valo { 2933e705c121SKalle Valo struct iwl_mvm_mgmt_mcast_key_cmd igtk_cmd = {}; 2934e705c121SKalle Valo 2935e705c121SKalle Valo /* verify the key details match the required command's expectations */ 29368e160ab8SAyala Beker if (WARN_ON((keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) || 29378e160ab8SAyala Beker (keyconf->keyidx != 4 && keyconf->keyidx != 5) || 29388e160ab8SAyala Beker (keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC && 29398e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_128 && 29408e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_256))) 29418e160ab8SAyala Beker return -EINVAL; 29428e160ab8SAyala Beker 29438e160ab8SAyala Beker if (WARN_ON(!iwl_mvm_has_new_rx_api(mvm) && 29448e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC)) 2945e705c121SKalle Valo return -EINVAL; 2946e705c121SKalle Valo 2947e705c121SKalle Valo igtk_cmd.key_id = cpu_to_le32(keyconf->keyidx); 2948e705c121SKalle Valo igtk_cmd.sta_id = cpu_to_le32(sta_id); 2949e705c121SKalle Valo 2950e705c121SKalle Valo if (remove_key) { 2951e705c121SKalle Valo igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_NOT_VALID); 2952e705c121SKalle Valo } else { 2953e705c121SKalle Valo struct ieee80211_key_seq seq; 2954e705c121SKalle Valo const u8 *pn; 2955e705c121SKalle Valo 2956aa950524SAyala Beker switch (keyconf->cipher) { 2957aa950524SAyala Beker case WLAN_CIPHER_SUITE_AES_CMAC: 2958aa950524SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_CCM); 2959aa950524SAyala Beker break; 29608e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_128: 29618e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_256: 29628e160ab8SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_GCMP); 29638e160ab8SAyala Beker break; 2964aa950524SAyala Beker default: 2965aa950524SAyala Beker return -EINVAL; 2966aa950524SAyala Beker } 2967aa950524SAyala Beker 29688e160ab8SAyala Beker memcpy(igtk_cmd.igtk, keyconf->key, keyconf->keylen); 29698e160ab8SAyala Beker if (keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 29708e160ab8SAyala Beker igtk_cmd.ctrl_flags |= 29718e160ab8SAyala Beker cpu_to_le32(STA_KEY_FLG_KEY_32BYTES); 2972e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 2973e705c121SKalle Valo pn = seq.aes_cmac.pn; 2974e705c121SKalle Valo igtk_cmd.receive_seq_cnt = cpu_to_le64(((u64) pn[5] << 0) | 2975e705c121SKalle Valo ((u64) pn[4] << 8) | 2976e705c121SKalle Valo ((u64) pn[3] << 16) | 2977e705c121SKalle Valo ((u64) pn[2] << 24) | 2978e705c121SKalle Valo ((u64) pn[1] << 32) | 2979e705c121SKalle Valo ((u64) pn[0] << 40)); 2980e705c121SKalle Valo } 2981e705c121SKalle Valo 2982e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "%s igtk for sta %u\n", 2983e705c121SKalle Valo remove_key ? "removing" : "installing", 2984e705c121SKalle Valo igtk_cmd.sta_id); 2985e705c121SKalle Valo 29868e160ab8SAyala Beker if (!iwl_mvm_has_new_rx_api(mvm)) { 29878e160ab8SAyala Beker struct iwl_mvm_mgmt_mcast_key_cmd_v1 igtk_cmd_v1 = { 29888e160ab8SAyala Beker .ctrl_flags = igtk_cmd.ctrl_flags, 29898e160ab8SAyala Beker .key_id = igtk_cmd.key_id, 29908e160ab8SAyala Beker .sta_id = igtk_cmd.sta_id, 29918e160ab8SAyala Beker .receive_seq_cnt = igtk_cmd.receive_seq_cnt 29928e160ab8SAyala Beker }; 29938e160ab8SAyala Beker 29948e160ab8SAyala Beker memcpy(igtk_cmd_v1.igtk, igtk_cmd.igtk, 29958e160ab8SAyala Beker ARRAY_SIZE(igtk_cmd_v1.igtk)); 29968e160ab8SAyala Beker return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 29978e160ab8SAyala Beker sizeof(igtk_cmd_v1), &igtk_cmd_v1); 29988e160ab8SAyala Beker } 2999e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 3000e705c121SKalle Valo sizeof(igtk_cmd), &igtk_cmd); 3001e705c121SKalle Valo } 3002e705c121SKalle Valo 3003e705c121SKalle Valo 3004e705c121SKalle Valo static inline u8 *iwl_mvm_get_mac_addr(struct iwl_mvm *mvm, 3005e705c121SKalle Valo struct ieee80211_vif *vif, 3006e705c121SKalle Valo struct ieee80211_sta *sta) 3007e705c121SKalle Valo { 3008e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3009e705c121SKalle Valo 3010e705c121SKalle Valo if (sta) 3011e705c121SKalle Valo return sta->addr; 3012e705c121SKalle Valo 3013e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 30140ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 3015e705c121SKalle Valo u8 sta_id = mvmvif->ap_sta_id; 3016e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 3017e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3018e705c121SKalle Valo return sta->addr; 3019e705c121SKalle Valo } 3020e705c121SKalle Valo 3021e705c121SKalle Valo 3022e705c121SKalle Valo return NULL; 3023e705c121SKalle Valo } 3024e705c121SKalle Valo 3025e705c121SKalle Valo static int __iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3026e705c121SKalle Valo struct ieee80211_vif *vif, 3027e705c121SKalle Valo struct ieee80211_sta *sta, 3028e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 30294615fd15SEmmanuel Grumbach u8 key_offset, 3030e705c121SKalle Valo bool mcast) 3031e705c121SKalle Valo { 3032e705c121SKalle Valo int ret; 3033e705c121SKalle Valo const u8 *addr; 3034e705c121SKalle Valo struct ieee80211_key_seq seq; 3035e705c121SKalle Valo u16 p1k[5]; 303685aeb58cSDavid Spinadel u32 sta_id; 303785aeb58cSDavid Spinadel 303885aeb58cSDavid Spinadel if (sta) { 303985aeb58cSDavid Spinadel struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 304085aeb58cSDavid Spinadel 304185aeb58cSDavid Spinadel sta_id = mvm_sta->sta_id; 304285aeb58cSDavid Spinadel } else if (vif->type == NL80211_IFTYPE_AP && 304385aeb58cSDavid Spinadel !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { 304485aeb58cSDavid Spinadel struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 304585aeb58cSDavid Spinadel 304685aeb58cSDavid Spinadel sta_id = mvmvif->mcast_sta.sta_id; 304785aeb58cSDavid Spinadel } else { 304885aeb58cSDavid Spinadel IWL_ERR(mvm, "Failed to find station id\n"); 304985aeb58cSDavid Spinadel return -EINVAL; 305085aeb58cSDavid Spinadel } 3051e705c121SKalle Valo 3052e705c121SKalle Valo switch (keyconf->cipher) { 3053e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 305485aeb58cSDavid Spinadel if (vif->type == NL80211_IFTYPE_AP) { 305585aeb58cSDavid Spinadel ret = -EINVAL; 305685aeb58cSDavid Spinadel break; 305785aeb58cSDavid Spinadel } 3058e705c121SKalle Valo addr = iwl_mvm_get_mac_addr(mvm, vif, sta); 3059e705c121SKalle Valo /* get phase 1 key from mac80211 */ 3060e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3061e705c121SKalle Valo ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k); 306285aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 30634615fd15SEmmanuel Grumbach seq.tkip.iv32, p1k, 0, key_offset); 3064e705c121SKalle Valo break; 3065e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 3066e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 3067e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 30682a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 30692a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 307085aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 30714615fd15SEmmanuel Grumbach 0, NULL, 0, key_offset); 3072e705c121SKalle Valo break; 3073e705c121SKalle Valo default: 307485aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 30754615fd15SEmmanuel Grumbach 0, NULL, 0, key_offset); 3076e705c121SKalle Valo } 3077e705c121SKalle Valo 3078e705c121SKalle Valo return ret; 3079e705c121SKalle Valo } 3080e705c121SKalle Valo 3081e705c121SKalle Valo static int __iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, u8 sta_id, 3082e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3083e705c121SKalle Valo bool mcast) 3084e705c121SKalle Valo { 308545c458b4SSara Sharon union { 308645c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 308745c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd cmd; 308845c458b4SSara Sharon } u = {}; 308945c458b4SSara Sharon bool new_api = fw_has_api(&mvm->fw->ucode_capa, 309045c458b4SSara Sharon IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 3091e705c121SKalle Valo __le16 key_flags; 309245c458b4SSara Sharon int ret, size; 3093e705c121SKalle Valo u32 status; 3094e705c121SKalle Valo 309585aeb58cSDavid Spinadel if (sta_id == IWL_MVM_INVALID_STA) 309685aeb58cSDavid Spinadel return -EINVAL; 309785aeb58cSDavid Spinadel 3098e705c121SKalle Valo key_flags = cpu_to_le16((keyconf->keyidx << STA_KEY_FLG_KEYID_POS) & 3099e705c121SKalle Valo STA_KEY_FLG_KEYID_MSK); 3100e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_NO_ENC | STA_KEY_FLG_WEP_KEY_MAP); 3101e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_NOT_VALID); 3102e705c121SKalle Valo 3103e705c121SKalle Valo if (mcast) 3104e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 3105e705c121SKalle Valo 310645c458b4SSara Sharon /* 310745c458b4SSara Sharon * The fields assigned here are in the same location at the start 310845c458b4SSara Sharon * of the command, so we can do this union trick. 310945c458b4SSara Sharon */ 311045c458b4SSara Sharon u.cmd.common.key_flags = key_flags; 311145c458b4SSara Sharon u.cmd.common.key_offset = keyconf->hw_key_idx; 311245c458b4SSara Sharon u.cmd.common.sta_id = sta_id; 311345c458b4SSara Sharon 311445c458b4SSara Sharon size = new_api ? sizeof(u.cmd) : sizeof(u.cmd_v1); 3115e705c121SKalle Valo 3116e705c121SKalle Valo status = ADD_STA_SUCCESS; 311745c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, &u.cmd, 311845c458b4SSara Sharon &status); 3119e705c121SKalle Valo 3120e705c121SKalle Valo switch (status) { 3121e705c121SKalle Valo case ADD_STA_SUCCESS: 3122e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "MODIFY_STA: remove sta key passed\n"); 3123e705c121SKalle Valo break; 3124e705c121SKalle Valo default: 3125e705c121SKalle Valo ret = -EIO; 3126e705c121SKalle Valo IWL_ERR(mvm, "MODIFY_STA: remove sta key failed\n"); 3127e705c121SKalle Valo break; 3128e705c121SKalle Valo } 3129e705c121SKalle Valo 3130e705c121SKalle Valo return ret; 3131e705c121SKalle Valo } 3132e705c121SKalle Valo 3133e705c121SKalle Valo int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3134e705c121SKalle Valo struct ieee80211_vif *vif, 3135e705c121SKalle Valo struct ieee80211_sta *sta, 3136e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 31374615fd15SEmmanuel Grumbach u8 key_offset) 3138e705c121SKalle Valo { 3139e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 31405f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 314185aeb58cSDavid Spinadel u8 sta_id = IWL_MVM_INVALID_STA; 3142e705c121SKalle Valo int ret; 3143e705c121SKalle Valo static const u8 __maybe_unused zero_addr[ETH_ALEN] = {0}; 3144e705c121SKalle Valo 3145e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3146e705c121SKalle Valo 314785aeb58cSDavid Spinadel if (vif->type != NL80211_IFTYPE_AP || 314885aeb58cSDavid Spinadel keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) { 3149e705c121SKalle Valo /* Get the station id from the mvm local station table */ 31505f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 31515f7a1847SJohannes Berg if (!mvm_sta) { 31525f7a1847SJohannes Berg IWL_ERR(mvm, "Failed to find station\n"); 3153e705c121SKalle Valo return -EINVAL; 3154e705c121SKalle Valo } 31555f7a1847SJohannes Berg sta_id = mvm_sta->sta_id; 3156e705c121SKalle Valo 31578e160ab8SAyala Beker if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 31588e160ab8SAyala Beker keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 31598e160ab8SAyala Beker keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) { 316085aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, 316185aeb58cSDavid Spinadel false); 3162e705c121SKalle Valo goto end; 3163e705c121SKalle Valo } 3164e705c121SKalle Valo 3165e705c121SKalle Valo /* 3166e705c121SKalle Valo * It is possible that the 'sta' parameter is NULL, and thus 316785aeb58cSDavid Spinadel * there is a need to retrieve the sta from the local station 316885aeb58cSDavid Spinadel * table. 3169e705c121SKalle Valo */ 3170e705c121SKalle Valo if (!sta) { 317185aeb58cSDavid Spinadel sta = rcu_dereference_protected( 317285aeb58cSDavid Spinadel mvm->fw_id_to_mac_id[sta_id], 3173e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3174e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) { 3175e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 3176e705c121SKalle Valo return -EINVAL; 3177e705c121SKalle Valo } 3178e705c121SKalle Valo } 3179e705c121SKalle Valo 3180e705c121SKalle Valo if (WARN_ON_ONCE(iwl_mvm_sta_from_mac80211(sta)->vif != vif)) 3181e705c121SKalle Valo return -EINVAL; 318285aeb58cSDavid Spinadel } 3183e705c121SKalle Valo 31844615fd15SEmmanuel Grumbach /* If the key_offset is not pre-assigned, we need to find a 31854615fd15SEmmanuel Grumbach * new offset to use. In normal cases, the offset is not 31864615fd15SEmmanuel Grumbach * pre-assigned, but during HW_RESTART we want to reuse the 31874615fd15SEmmanuel Grumbach * same indices, so we pass them when this function is called. 31884615fd15SEmmanuel Grumbach * 31894615fd15SEmmanuel Grumbach * In D3 entry, we need to hardcoded the indices (because the 31904615fd15SEmmanuel Grumbach * firmware hardcodes the PTK offset to 0). In this case, we 31914615fd15SEmmanuel Grumbach * need to make sure we don't overwrite the hw_key_idx in the 31924615fd15SEmmanuel Grumbach * keyconf structure, because otherwise we cannot configure 31934615fd15SEmmanuel Grumbach * the original ones back when resuming. 3194e705c121SKalle Valo */ 31954615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) { 31964615fd15SEmmanuel Grumbach key_offset = iwl_mvm_set_fw_key_idx(mvm); 31974615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) 3198e705c121SKalle Valo return -ENOSPC; 31994615fd15SEmmanuel Grumbach keyconf->hw_key_idx = key_offset; 3200e705c121SKalle Valo } 3201e705c121SKalle Valo 32024615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, key_offset, mcast); 32039c3deeb5SLuca Coelho if (ret) 3204e705c121SKalle Valo goto end; 3205e705c121SKalle Valo 3206e705c121SKalle Valo /* 3207e705c121SKalle Valo * For WEP, the same key is used for multicast and unicast. Upload it 3208e705c121SKalle Valo * again, using the same key offset, and now pointing the other one 3209e705c121SKalle Valo * to the same key slot (offset). 3210e705c121SKalle Valo * If this fails, remove the original as well. 3211e705c121SKalle Valo */ 321285aeb58cSDavid Spinadel if ((keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 321385aeb58cSDavid Spinadel keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) && 321485aeb58cSDavid Spinadel sta) { 32154615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, 32164615fd15SEmmanuel Grumbach key_offset, !mcast); 3217e705c121SKalle Valo if (ret) { 3218e705c121SKalle Valo __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 32199c3deeb5SLuca Coelho goto end; 3220e705c121SKalle Valo } 3221e705c121SKalle Valo } 3222e705c121SKalle Valo 32239c3deeb5SLuca Coelho __set_bit(key_offset, mvm->fw_key_table); 32249c3deeb5SLuca Coelho 3225e705c121SKalle Valo end: 3226e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "key: cipher=%x len=%d idx=%d sta=%pM ret=%d\n", 3227e705c121SKalle Valo keyconf->cipher, keyconf->keylen, keyconf->keyidx, 3228e705c121SKalle Valo sta ? sta->addr : zero_addr, ret); 3229e705c121SKalle Valo return ret; 3230e705c121SKalle Valo } 3231e705c121SKalle Valo 3232e705c121SKalle Valo int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, 3233e705c121SKalle Valo struct ieee80211_vif *vif, 3234e705c121SKalle Valo struct ieee80211_sta *sta, 3235e705c121SKalle Valo struct ieee80211_key_conf *keyconf) 3236e705c121SKalle Valo { 3237e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 32385f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 32390ae98812SSara Sharon u8 sta_id = IWL_MVM_INVALID_STA; 3240e705c121SKalle Valo int ret, i; 3241e705c121SKalle Valo 3242e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3243e705c121SKalle Valo 32445f7a1847SJohannes Berg /* Get the station from the mvm local station table */ 32455f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 324671793b7dSLuca Coelho if (mvm_sta) 3247cd4d23c1SIlan Peer sta_id = mvm_sta->sta_id; 324885aeb58cSDavid Spinadel else if (!sta && vif->type == NL80211_IFTYPE_AP && mcast) 324985aeb58cSDavid Spinadel sta_id = iwl_mvm_vif_from_mac80211(vif)->mcast_sta.sta_id; 325085aeb58cSDavid Spinadel 3251e705c121SKalle Valo 3252e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "mvm remove dynamic key: idx=%d sta=%d\n", 3253e705c121SKalle Valo keyconf->keyidx, sta_id); 3254e705c121SKalle Valo 325571793b7dSLuca Coelho if (mvm_sta && (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 32568e160ab8SAyala Beker keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 325771793b7dSLuca Coelho keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) 3258e705c121SKalle Valo return iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, true); 3259e705c121SKalle Valo 3260e705c121SKalle Valo if (!__test_and_clear_bit(keyconf->hw_key_idx, mvm->fw_key_table)) { 3261e705c121SKalle Valo IWL_ERR(mvm, "offset %d not used in fw key table.\n", 3262e705c121SKalle Valo keyconf->hw_key_idx); 3263e705c121SKalle Valo return -ENOENT; 3264e705c121SKalle Valo } 3265e705c121SKalle Valo 3266e705c121SKalle Valo /* track which key was deleted last */ 3267e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3268e705c121SKalle Valo if (mvm->fw_key_deleted[i] < U8_MAX) 3269e705c121SKalle Valo mvm->fw_key_deleted[i]++; 3270e705c121SKalle Valo } 3271e705c121SKalle Valo mvm->fw_key_deleted[keyconf->hw_key_idx] = 0; 3272e705c121SKalle Valo 327385aeb58cSDavid Spinadel if (sta && !mvm_sta) { 3274e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "station non-existent, early return.\n"); 3275e705c121SKalle Valo return 0; 3276e705c121SKalle Valo } 3277e705c121SKalle Valo 3278e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 3279e705c121SKalle Valo if (ret) 3280e705c121SKalle Valo return ret; 3281e705c121SKalle Valo 3282e705c121SKalle Valo /* delete WEP key twice to get rid of (now useless) offset */ 3283e705c121SKalle Valo if (keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 3284e705c121SKalle Valo keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) 3285e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, !mcast); 3286e705c121SKalle Valo 3287e705c121SKalle Valo return ret; 3288e705c121SKalle Valo } 3289e705c121SKalle Valo 3290e705c121SKalle Valo void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, 3291e705c121SKalle Valo struct ieee80211_vif *vif, 3292e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3293e705c121SKalle Valo struct ieee80211_sta *sta, u32 iv32, 3294e705c121SKalle Valo u16 *phase1key) 3295e705c121SKalle Valo { 3296e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3297e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 3298e705c121SKalle Valo 3299e705c121SKalle Valo rcu_read_lock(); 3300e705c121SKalle Valo 33015f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 33025f7a1847SJohannes Berg if (WARN_ON_ONCE(!mvm_sta)) 330312f17211SEmmanuel Grumbach goto unlock; 330485aeb58cSDavid Spinadel iwl_mvm_send_sta_key(mvm, mvm_sta->sta_id, keyconf, mcast, 33054615fd15SEmmanuel Grumbach iv32, phase1key, CMD_ASYNC, keyconf->hw_key_idx); 330612f17211SEmmanuel Grumbach 330712f17211SEmmanuel Grumbach unlock: 3308e705c121SKalle Valo rcu_read_unlock(); 3309e705c121SKalle Valo } 3310e705c121SKalle Valo 3311e705c121SKalle Valo void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, 3312e705c121SKalle Valo struct ieee80211_sta *sta) 3313e705c121SKalle Valo { 3314e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3315e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3316e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3317e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3318e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_PS), 3319e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3320e705c121SKalle Valo }; 3321e705c121SKalle Valo int ret; 3322e705c121SKalle Valo 3323854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3324854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3325e705c121SKalle Valo if (ret) 3326e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3327e705c121SKalle Valo } 3328e705c121SKalle Valo 3329e705c121SKalle Valo void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, 3330e705c121SKalle Valo struct ieee80211_sta *sta, 3331e705c121SKalle Valo enum ieee80211_frame_release_type reason, 3332e705c121SKalle Valo u16 cnt, u16 tids, bool more_data, 33339a3fcf91SSara Sharon bool single_sta_queue) 3334e705c121SKalle Valo { 3335e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3336e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3337e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3338e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3339e705c121SKalle Valo .modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT, 3340e705c121SKalle Valo .sleep_tx_count = cpu_to_le16(cnt), 3341e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3342e705c121SKalle Valo }; 3343e705c121SKalle Valo int tid, ret; 3344e705c121SKalle Valo unsigned long _tids = tids; 3345e705c121SKalle Valo 3346e705c121SKalle Valo /* convert TIDs to ACs - we don't support TSPEC so that's OK 3347e705c121SKalle Valo * Note that this field is reserved and unused by firmware not 3348e705c121SKalle Valo * supporting GO uAPSD, so it's safe to always do this. 3349e705c121SKalle Valo */ 3350e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) 3351e705c121SKalle Valo cmd.awake_acs |= BIT(tid_to_ucode_ac[tid]); 3352e705c121SKalle Valo 33539a3fcf91SSara Sharon /* If we're releasing frames from aggregation or dqa queues then check 33549a3fcf91SSara Sharon * if all the queues that we're releasing frames from, combined, have: 3355e705c121SKalle Valo * - more frames than the service period, in which case more_data 3356e705c121SKalle Valo * needs to be set 3357e705c121SKalle Valo * - fewer than 'cnt' frames, in which case we need to adjust the 3358e705c121SKalle Valo * firmware command (but do that unconditionally) 3359e705c121SKalle Valo */ 33609a3fcf91SSara Sharon if (single_sta_queue) { 3361e705c121SKalle Valo int remaining = cnt; 336236be0eb6SEmmanuel Grumbach int sleep_tx_count; 3363e705c121SKalle Valo 3364e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3365e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) { 3366e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 3367e705c121SKalle Valo u16 n_queued; 3368e705c121SKalle Valo 3369e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 3370e705c121SKalle Valo 3371dd32162dSLiad Kaufman n_queued = iwl_mvm_tid_queued(mvm, tid_data); 3372e705c121SKalle Valo if (n_queued > remaining) { 3373e705c121SKalle Valo more_data = true; 3374e705c121SKalle Valo remaining = 0; 3375e705c121SKalle Valo break; 3376e705c121SKalle Valo } 3377e705c121SKalle Valo remaining -= n_queued; 3378e705c121SKalle Valo } 337936be0eb6SEmmanuel Grumbach sleep_tx_count = cnt - remaining; 338036be0eb6SEmmanuel Grumbach if (reason == IEEE80211_FRAME_RELEASE_UAPSD) 338136be0eb6SEmmanuel Grumbach mvmsta->sleep_tx_count = sleep_tx_count; 3382e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3383e705c121SKalle Valo 338436be0eb6SEmmanuel Grumbach cmd.sleep_tx_count = cpu_to_le16(sleep_tx_count); 3385e705c121SKalle Valo if (WARN_ON(cnt - remaining == 0)) { 3386e705c121SKalle Valo ieee80211_sta_eosp(sta); 3387e705c121SKalle Valo return; 3388e705c121SKalle Valo } 3389e705c121SKalle Valo } 3390e705c121SKalle Valo 3391e705c121SKalle Valo /* Note: this is ignored by firmware not supporting GO uAPSD */ 3392e705c121SKalle Valo if (more_data) 3393ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_MOREDATA; 3394e705c121SKalle Valo 3395e705c121SKalle Valo if (reason == IEEE80211_FRAME_RELEASE_PSPOLL) { 3396e705c121SKalle Valo mvmsta->next_status_eosp = true; 3397ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_PS_POLL; 3398e705c121SKalle Valo } else { 3399ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_UAPSD; 3400e705c121SKalle Valo } 3401e705c121SKalle Valo 3402156f92f2SEmmanuel Grumbach /* block the Tx queues until the FW updated the sleep Tx count */ 3403156f92f2SEmmanuel Grumbach iwl_trans_block_txq_ptrs(mvm->trans, true); 3404156f92f2SEmmanuel Grumbach 3405156f92f2SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 3406156f92f2SEmmanuel Grumbach CMD_ASYNC | CMD_WANT_ASYNC_CALLBACK, 3407854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3408e705c121SKalle Valo if (ret) 3409e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3410e705c121SKalle Valo } 3411e705c121SKalle Valo 3412e705c121SKalle Valo void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm, 3413e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 3414e705c121SKalle Valo { 3415e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 3416e705c121SKalle Valo struct iwl_mvm_eosp_notification *notif = (void *)pkt->data; 3417e705c121SKalle Valo struct ieee80211_sta *sta; 3418e705c121SKalle Valo u32 sta_id = le32_to_cpu(notif->sta_id); 3419e705c121SKalle Valo 3420e705c121SKalle Valo if (WARN_ON_ONCE(sta_id >= IWL_MVM_STATION_COUNT)) 3421e705c121SKalle Valo return; 3422e705c121SKalle Valo 3423e705c121SKalle Valo rcu_read_lock(); 3424e705c121SKalle Valo sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 3425e705c121SKalle Valo if (!IS_ERR_OR_NULL(sta)) 3426e705c121SKalle Valo ieee80211_sta_eosp(sta); 3427e705c121SKalle Valo rcu_read_unlock(); 3428e705c121SKalle Valo } 3429e705c121SKalle Valo 3430e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm, 3431e705c121SKalle Valo struct iwl_mvm_sta *mvmsta, bool disable) 3432e705c121SKalle Valo { 3433e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3434e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3435e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3436e705c121SKalle Valo .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 3437e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 3438e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3439e705c121SKalle Valo }; 3440e705c121SKalle Valo int ret; 3441e705c121SKalle Valo 3442854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3443854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3444e705c121SKalle Valo if (ret) 3445e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3446e705c121SKalle Valo } 3447e705c121SKalle Valo 3448e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm, 3449e705c121SKalle Valo struct ieee80211_sta *sta, 3450e705c121SKalle Valo bool disable) 3451e705c121SKalle Valo { 3452e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3453e705c121SKalle Valo 3454e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 3455e705c121SKalle Valo 3456e705c121SKalle Valo if (mvm_sta->disable_tx == disable) { 3457e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 3458e705c121SKalle Valo return; 3459e705c121SKalle Valo } 3460e705c121SKalle Valo 3461e705c121SKalle Valo mvm_sta->disable_tx = disable; 3462e705c121SKalle Valo 3463c8f54701SJohannes Berg /* Tell mac80211 to start/stop queuing tx for this station */ 3464e705c121SKalle Valo ieee80211_sta_block_awake(mvm->hw, sta, disable); 3465e705c121SKalle Valo 3466e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvm_sta, disable); 3467e705c121SKalle Valo 3468e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 3469e705c121SKalle Valo } 3470e705c121SKalle Valo 3471ced19f26SSara Sharon static void iwl_mvm_int_sta_modify_disable_tx(struct iwl_mvm *mvm, 3472ced19f26SSara Sharon struct iwl_mvm_vif *mvmvif, 3473ced19f26SSara Sharon struct iwl_mvm_int_sta *sta, 3474ced19f26SSara Sharon bool disable) 3475ced19f26SSara Sharon { 3476ced19f26SSara Sharon u32 id = FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color); 3477ced19f26SSara Sharon struct iwl_mvm_add_sta_cmd cmd = { 3478ced19f26SSara Sharon .add_modify = STA_MODE_MODIFY, 3479ced19f26SSara Sharon .sta_id = sta->sta_id, 3480ced19f26SSara Sharon .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 3481ced19f26SSara Sharon .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 3482ced19f26SSara Sharon .mac_id_n_color = cpu_to_le32(id), 3483ced19f26SSara Sharon }; 3484ced19f26SSara Sharon int ret; 3485ced19f26SSara Sharon 3486ced19f26SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 0, 3487ced19f26SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3488ced19f26SSara Sharon if (ret) 3489ced19f26SSara Sharon IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3490ced19f26SSara Sharon } 3491ced19f26SSara Sharon 3492e705c121SKalle Valo void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm, 3493e705c121SKalle Valo struct iwl_mvm_vif *mvmvif, 3494e705c121SKalle Valo bool disable) 3495e705c121SKalle Valo { 3496e705c121SKalle Valo struct ieee80211_sta *sta; 3497e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3498e705c121SKalle Valo int i; 3499e705c121SKalle Valo 3500e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3501e705c121SKalle Valo 3502e705c121SKalle Valo /* Block/unblock all the stations of the given mvmvif */ 35030ae98812SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 3504e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 3505e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3506e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) 3507e705c121SKalle Valo continue; 3508e705c121SKalle Valo 3509e705c121SKalle Valo mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3510e705c121SKalle Valo if (mvm_sta->mac_id_n_color != 3511e705c121SKalle Valo FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)) 3512e705c121SKalle Valo continue; 3513e705c121SKalle Valo 3514e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx_ap(mvm, sta, disable); 3515e705c121SKalle Valo } 3516ced19f26SSara Sharon 3517ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3518ced19f26SSara Sharon return; 3519ced19f26SSara Sharon 3520ced19f26SSara Sharon /* Need to block/unblock also multicast station */ 3521ced19f26SSara Sharon if (mvmvif->mcast_sta.sta_id != IWL_MVM_INVALID_STA) 3522ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 3523ced19f26SSara Sharon &mvmvif->mcast_sta, disable); 3524ced19f26SSara Sharon 3525ced19f26SSara Sharon /* 3526ced19f26SSara Sharon * Only unblock the broadcast station (FW blocks it for immediate 3527ced19f26SSara Sharon * quiet, not the driver) 3528ced19f26SSara Sharon */ 3529ced19f26SSara Sharon if (!disable && mvmvif->bcast_sta.sta_id != IWL_MVM_INVALID_STA) 3530ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 3531ced19f26SSara Sharon &mvmvif->bcast_sta, disable); 3532e705c121SKalle Valo } 3533e705c121SKalle Valo 3534e705c121SKalle Valo void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 3535e705c121SKalle Valo { 3536e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3537e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 3538e705c121SKalle Valo 3539e705c121SKalle Valo rcu_read_lock(); 3540e705c121SKalle Valo 3541e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->ap_sta_id); 3542e705c121SKalle Valo 3543e705c121SKalle Valo if (!WARN_ON(!mvmsta)) 3544e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true); 3545e705c121SKalle Valo 3546e705c121SKalle Valo rcu_read_unlock(); 3547e705c121SKalle Valo } 3548dd32162dSLiad Kaufman 3549dd32162dSLiad Kaufman u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data) 3550dd32162dSLiad Kaufman { 3551dd32162dSLiad Kaufman u16 sn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3552dd32162dSLiad Kaufman 3553dd32162dSLiad Kaufman /* 3554dd32162dSLiad Kaufman * In A000 HW, the next_reclaimed index is only 8 bit, so we'll need 3555dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 3556dd32162dSLiad Kaufman */ 3557dd32162dSLiad Kaufman if (mvm->trans->cfg->gen2) 3558dd32162dSLiad Kaufman sn &= 0xff; 3559dd32162dSLiad Kaufman 3560dd32162dSLiad Kaufman return ieee80211_sn_sub(sn, tid_data->next_reclaimed); 3561dd32162dSLiad Kaufman } 3562