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 * 89617040eSEmmanuel Grumbach * Copyright(c) 2012 - 2015, 2018 - 2020 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 * The full GNU General Public License is included in this distribution 22e705c121SKalle Valo * in the file called COPYING. 23e705c121SKalle Valo * 24e705c121SKalle Valo * Contact Information: 25cb2f8277SEmmanuel Grumbach * Intel Linux Wireless <linuxwifi@intel.com> 26e705c121SKalle Valo * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 27e705c121SKalle Valo * 28e705c121SKalle Valo * BSD LICENSE 29e705c121SKalle Valo * 309617040eSEmmanuel Grumbach * Copyright(c) 2012 - 2015, 2018 - 2020 Intel Corporation. All rights reserved. 31e705c121SKalle Valo * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 3226d6c16bSSara Sharon * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 33e705c121SKalle Valo * All rights reserved. 34e705c121SKalle Valo * 35e705c121SKalle Valo * Redistribution and use in source and binary forms, with or without 36e705c121SKalle Valo * modification, are permitted provided that the following conditions 37e705c121SKalle Valo * are met: 38e705c121SKalle Valo * 39e705c121SKalle Valo * * Redistributions of source code must retain the above copyright 40e705c121SKalle Valo * notice, this list of conditions and the following disclaimer. 41e705c121SKalle Valo * * Redistributions in binary form must reproduce the above copyright 42e705c121SKalle Valo * notice, this list of conditions and the following disclaimer in 43e705c121SKalle Valo * the documentation and/or other materials provided with the 44e705c121SKalle Valo * distribution. 45e705c121SKalle Valo * * Neither the name Intel Corporation nor the names of its 46e705c121SKalle Valo * contributors may be used to endorse or promote products derived 47e705c121SKalle Valo * from this software without specific prior written permission. 48e705c121SKalle Valo * 49e705c121SKalle Valo * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 50e705c121SKalle Valo * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 51e705c121SKalle Valo * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 52e705c121SKalle Valo * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 53e705c121SKalle Valo * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 54e705c121SKalle Valo * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 55e705c121SKalle Valo * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 56e705c121SKalle Valo * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 57e705c121SKalle Valo * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 58e705c121SKalle Valo * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 59e705c121SKalle Valo * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 60e705c121SKalle Valo * 61e705c121SKalle Valo *****************************************************************************/ 62e705c121SKalle Valo #include <net/mac80211.h> 63e705c121SKalle Valo 64e705c121SKalle Valo #include "mvm.h" 65e705c121SKalle Valo #include "sta.h" 66e705c121SKalle Valo #include "rs.h" 67e705c121SKalle Valo 68854c5705SSara Sharon /* 69854c5705SSara Sharon * New version of ADD_STA_sta command added new fields at the end of the 70854c5705SSara Sharon * structure, so sending the size of the relevant API's structure is enough to 71854c5705SSara Sharon * support both API versions. 72854c5705SSara Sharon */ 73854c5705SSara Sharon static inline int iwl_mvm_add_sta_cmd_size(struct iwl_mvm *mvm) 74854c5705SSara Sharon { 75ced19f26SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) || 76ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 77ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd); 78ced19f26SSara Sharon else 79ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd_v7); 80854c5705SSara Sharon } 81854c5705SSara Sharon 82e705c121SKalle Valo static int iwl_mvm_find_free_sta_id(struct iwl_mvm *mvm, 83e705c121SKalle Valo enum nl80211_iftype iftype) 84e705c121SKalle Valo { 85e705c121SKalle Valo int sta_id; 86e705c121SKalle Valo u32 reserved_ids = 0; 87e705c121SKalle Valo 88be9ae34eSNathan Errera BUILD_BUG_ON(IWL_MVM_STATION_COUNT_MAX > 32); 89e705c121SKalle Valo WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)); 90e705c121SKalle Valo 91e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 92e705c121SKalle Valo 93e705c121SKalle Valo /* d0i3/d3 assumes the AP's sta_id (of sta vif) is 0. reserve it. */ 94e705c121SKalle Valo if (iftype != NL80211_IFTYPE_STATION) 95e705c121SKalle Valo reserved_ids = BIT(0); 96e705c121SKalle Valo 97e705c121SKalle Valo /* Don't take rcu_read_lock() since we are protected by mvm->mutex */ 98be9ae34eSNathan Errera for (sta_id = 0; sta_id < mvm->fw->ucode_capa.num_stations; sta_id++) { 99e705c121SKalle Valo if (BIT(sta_id) & reserved_ids) 100e705c121SKalle Valo continue; 101e705c121SKalle Valo 102e705c121SKalle Valo if (!rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 103e705c121SKalle Valo lockdep_is_held(&mvm->mutex))) 104e705c121SKalle Valo return sta_id; 105e705c121SKalle Valo } 1060ae98812SSara Sharon return IWL_MVM_INVALID_STA; 107e705c121SKalle Valo } 108e705c121SKalle Valo 109e705c121SKalle Valo /* send station add/update command to firmware */ 110e705c121SKalle Valo int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 11124afba76SLiad Kaufman bool update, unsigned int flags) 112e705c121SKalle Valo { 113e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 114e705c121SKalle Valo struct iwl_mvm_add_sta_cmd add_sta_cmd = { 115e705c121SKalle Valo .sta_id = mvm_sta->sta_id, 116e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color), 117e705c121SKalle Valo .add_modify = update ? 1 : 0, 118e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_FAT_EN_MSK | 1198addabf8SNaftali Goldstein STA_FLG_MIMO_EN_MSK | 1208addabf8SNaftali Goldstein STA_FLG_RTS_MIMO_PROT), 121cf0cda19SLiad Kaufman .tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg), 122e705c121SKalle Valo }; 123e705c121SKalle Valo int ret; 124e705c121SKalle Valo u32 status; 125e705c121SKalle Valo u32 agg_size = 0, mpdu_dens = 0; 126e705c121SKalle Valo 127ced19f26SSara Sharon if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 128ced19f26SSara Sharon add_sta_cmd.station_type = mvm_sta->sta_type; 129ced19f26SSara Sharon 13024afba76SLiad Kaufman if (!update || (flags & STA_MODIFY_QUEUES)) { 131e705c121SKalle Valo memcpy(&add_sta_cmd.addr, sta->addr, ETH_ALEN); 13224afba76SLiad Kaufman 133bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) { 134bb49701bSSara Sharon add_sta_cmd.tfd_queue_msk = 135bb49701bSSara Sharon cpu_to_le32(mvm_sta->tfd_queue_msk); 136bb49701bSSara Sharon 13724afba76SLiad Kaufman if (flags & STA_MODIFY_QUEUES) 13824afba76SLiad Kaufman add_sta_cmd.modify_mask |= STA_MODIFY_QUEUES; 139bb49701bSSara Sharon } else { 140bb49701bSSara Sharon WARN_ON(flags & STA_MODIFY_QUEUES); 141bb49701bSSara Sharon } 142e705c121SKalle Valo } 143e705c121SKalle Valo 144e705c121SKalle Valo switch (sta->bandwidth) { 145e705c121SKalle Valo case IEEE80211_STA_RX_BW_160: 146e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_160MHZ); 147e705c121SKalle Valo /* fall through */ 148e705c121SKalle Valo case IEEE80211_STA_RX_BW_80: 149e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_80MHZ); 150e705c121SKalle Valo /* fall through */ 151e705c121SKalle Valo case IEEE80211_STA_RX_BW_40: 152e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_40MHZ); 153e705c121SKalle Valo /* fall through */ 154e705c121SKalle Valo case IEEE80211_STA_RX_BW_20: 155e705c121SKalle Valo if (sta->ht_cap.ht_supported) 156e705c121SKalle Valo add_sta_cmd.station_flags |= 157e705c121SKalle Valo cpu_to_le32(STA_FLG_FAT_EN_20MHZ); 158e705c121SKalle Valo break; 159e705c121SKalle Valo } 160e705c121SKalle Valo 161e705c121SKalle Valo switch (sta->rx_nss) { 162e705c121SKalle Valo case 1: 163e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 164e705c121SKalle Valo break; 165e705c121SKalle Valo case 2: 166e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO2); 167e705c121SKalle Valo break; 168e705c121SKalle Valo case 3 ... 8: 169e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO3); 170e705c121SKalle Valo break; 171e705c121SKalle Valo } 172e705c121SKalle Valo 173e705c121SKalle Valo switch (sta->smps_mode) { 174e705c121SKalle Valo case IEEE80211_SMPS_AUTOMATIC: 175e705c121SKalle Valo case IEEE80211_SMPS_NUM_MODES: 176e705c121SKalle Valo WARN_ON(1); 177e705c121SKalle Valo break; 178e705c121SKalle Valo case IEEE80211_SMPS_STATIC: 179e705c121SKalle Valo /* override NSS */ 180e705c121SKalle Valo add_sta_cmd.station_flags &= ~cpu_to_le32(STA_FLG_MIMO_EN_MSK); 181e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 182e705c121SKalle Valo break; 183e705c121SKalle Valo case IEEE80211_SMPS_DYNAMIC: 184e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_RTS_MIMO_PROT); 185e705c121SKalle Valo break; 186e705c121SKalle Valo case IEEE80211_SMPS_OFF: 187e705c121SKalle Valo /* nothing */ 188e705c121SKalle Valo break; 189e705c121SKalle Valo } 190e705c121SKalle Valo 191e705c121SKalle Valo if (sta->ht_cap.ht_supported) { 192e705c121SKalle Valo add_sta_cmd.station_flags_msk |= 193e705c121SKalle Valo cpu_to_le32(STA_FLG_MAX_AGG_SIZE_MSK | 194e705c121SKalle Valo STA_FLG_AGG_MPDU_DENS_MSK); 195e705c121SKalle Valo 196e705c121SKalle Valo mpdu_dens = sta->ht_cap.ampdu_density; 197e705c121SKalle Valo } 198e705c121SKalle Valo 199e705c121SKalle Valo if (sta->vht_cap.vht_supported) { 200e705c121SKalle Valo agg_size = sta->vht_cap.cap & 201e705c121SKalle Valo IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; 202e705c121SKalle Valo agg_size >>= 203e705c121SKalle Valo IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; 204e705c121SKalle Valo } else if (sta->ht_cap.ht_supported) { 205e705c121SKalle Valo agg_size = sta->ht_cap.ampdu_factor; 206e705c121SKalle Valo } 207e705c121SKalle Valo 208e705c121SKalle Valo add_sta_cmd.station_flags |= 209e705c121SKalle Valo cpu_to_le32(agg_size << STA_FLG_MAX_AGG_SIZE_SHIFT); 210e705c121SKalle Valo add_sta_cmd.station_flags |= 211e705c121SKalle Valo cpu_to_le32(mpdu_dens << STA_FLG_AGG_MPDU_DENS_SHIFT); 212d94c5a82SGregory Greenman if (mvm_sta->sta_state >= IEEE80211_STA_ASSOC) 21319c52f46SEmmanuel Grumbach add_sta_cmd.assoc_id = cpu_to_le16(sta->aid); 214e705c121SKalle Valo 21565e25482SJohannes Berg if (sta->wme) { 21665e25482SJohannes Berg add_sta_cmd.modify_mask |= STA_MODIFY_UAPSD_ACS; 21765e25482SJohannes Berg 21865e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK) 219c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_BK); 22065e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE) 221c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_BE); 22265e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI) 223c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_VI); 22465e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) 225c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_VO); 226c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= add_sta_cmd.uapsd_acs << 4; 227e71ca5eaSEmmanuel Grumbach add_sta_cmd.sp_length = sta->max_sp ? sta->max_sp * 2 : 128; 22865e25482SJohannes Berg } 22965e25482SJohannes Berg 230e705c121SKalle Valo status = ADD_STA_SUCCESS; 231854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 232854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 233e705c121SKalle Valo &add_sta_cmd, &status); 234e705c121SKalle Valo if (ret) 235e705c121SKalle Valo return ret; 236e705c121SKalle Valo 237837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 238e705c121SKalle Valo case ADD_STA_SUCCESS: 239e705c121SKalle Valo IWL_DEBUG_ASSOC(mvm, "ADD_STA PASSED\n"); 240e705c121SKalle Valo break; 241e705c121SKalle Valo default: 242e705c121SKalle Valo ret = -EIO; 243e705c121SKalle Valo IWL_ERR(mvm, "ADD_STA failed\n"); 244e705c121SKalle Valo break; 245e705c121SKalle Valo } 246e705c121SKalle Valo 247e705c121SKalle Valo return ret; 248e705c121SKalle Valo } 249e705c121SKalle Valo 2508cef5344SKees Cook static void iwl_mvm_rx_agg_session_expired(struct timer_list *t) 25110b2b201SSara Sharon { 2528cef5344SKees Cook struct iwl_mvm_baid_data *data = 2538cef5344SKees Cook from_timer(data, t, session_timer); 2548cef5344SKees Cook struct iwl_mvm_baid_data __rcu **rcu_ptr = data->rcu_ptr; 25510b2b201SSara Sharon struct iwl_mvm_baid_data *ba_data; 25610b2b201SSara Sharon struct ieee80211_sta *sta; 25710b2b201SSara Sharon struct iwl_mvm_sta *mvm_sta; 25810b2b201SSara Sharon unsigned long timeout; 25910b2b201SSara Sharon 26010b2b201SSara Sharon rcu_read_lock(); 26110b2b201SSara Sharon 26210b2b201SSara Sharon ba_data = rcu_dereference(*rcu_ptr); 26310b2b201SSara Sharon 26410b2b201SSara Sharon if (WARN_ON(!ba_data)) 26510b2b201SSara Sharon goto unlock; 26610b2b201SSara Sharon 26710b2b201SSara Sharon if (!ba_data->timeout) 26810b2b201SSara Sharon goto unlock; 26910b2b201SSara Sharon 27010b2b201SSara Sharon timeout = ba_data->last_rx + TU_TO_JIFFIES(ba_data->timeout * 2); 27110b2b201SSara Sharon if (time_is_after_jiffies(timeout)) { 27210b2b201SSara Sharon mod_timer(&ba_data->session_timer, timeout); 27310b2b201SSara Sharon goto unlock; 27410b2b201SSara Sharon } 27510b2b201SSara Sharon 27610b2b201SSara Sharon /* Timer expired */ 27710b2b201SSara Sharon sta = rcu_dereference(ba_data->mvm->fw_id_to_mac_id[ba_data->sta_id]); 27861dd8a8aSEmmanuel Grumbach 27961dd8a8aSEmmanuel Grumbach /* 28061dd8a8aSEmmanuel Grumbach * sta should be valid unless the following happens: 28161dd8a8aSEmmanuel Grumbach * The firmware asserts which triggers a reconfig flow, but 28261dd8a8aSEmmanuel Grumbach * the reconfig fails before we set the pointer to sta into 28361dd8a8aSEmmanuel Grumbach * the fw_id_to_mac_id pointer table. Mac80211 can't stop 28461dd8a8aSEmmanuel Grumbach * A-MDPU and hence the timer continues to run. Then, the 28561dd8a8aSEmmanuel Grumbach * timer expires and sta is NULL. 28661dd8a8aSEmmanuel Grumbach */ 28761dd8a8aSEmmanuel Grumbach if (!sta) 28861dd8a8aSEmmanuel Grumbach goto unlock; 28961dd8a8aSEmmanuel Grumbach 29010b2b201SSara Sharon mvm_sta = iwl_mvm_sta_from_mac80211(sta); 29120fc690fSNaftali Goldstein ieee80211_rx_ba_timer_expired(mvm_sta->vif, 29210b2b201SSara Sharon sta->addr, ba_data->tid); 29310b2b201SSara Sharon unlock: 29410b2b201SSara Sharon rcu_read_unlock(); 29510b2b201SSara Sharon } 29610b2b201SSara Sharon 2979794c64fSLiad Kaufman /* Disable aggregations for a bitmap of TIDs for a given station */ 2989794c64fSLiad Kaufman static int iwl_mvm_invalidate_sta_queue(struct iwl_mvm *mvm, int queue, 2999794c64fSLiad Kaufman unsigned long disable_agg_tids, 3009794c64fSLiad Kaufman bool remove_queue) 3019794c64fSLiad Kaufman { 3029794c64fSLiad Kaufman struct iwl_mvm_add_sta_cmd cmd = {}; 3039794c64fSLiad Kaufman struct ieee80211_sta *sta; 3049794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 3059794c64fSLiad Kaufman u32 status; 3069794c64fSLiad Kaufman u8 sta_id; 3079794c64fSLiad Kaufman 308bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 309bb49701bSSara Sharon return -EINVAL; 310bb49701bSSara Sharon 3119794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 3129794c64fSLiad Kaufman 3139794c64fSLiad Kaufman rcu_read_lock(); 3149794c64fSLiad Kaufman 3159794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 3169794c64fSLiad Kaufman 3179794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 3189794c64fSLiad Kaufman rcu_read_unlock(); 3199794c64fSLiad Kaufman return -EINVAL; 3209794c64fSLiad Kaufman } 3219794c64fSLiad Kaufman 3229794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 3239794c64fSLiad Kaufman 3249794c64fSLiad Kaufman mvmsta->tid_disable_agg |= disable_agg_tids; 3259794c64fSLiad Kaufman 3269794c64fSLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 3279794c64fSLiad Kaufman cmd.sta_id = mvmsta->sta_id; 3289794c64fSLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 3299794c64fSLiad Kaufman cmd.modify_mask = STA_MODIFY_QUEUES; 3309794c64fSLiad Kaufman if (disable_agg_tids) 3319794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 3329794c64fSLiad Kaufman if (remove_queue) 3339794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_QUEUE_REMOVAL; 3349794c64fSLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 3359794c64fSLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 3369794c64fSLiad Kaufman 3379794c64fSLiad Kaufman rcu_read_unlock(); 3389794c64fSLiad Kaufman 3399794c64fSLiad Kaufman /* Notify FW of queue removal from the STA queues */ 3409794c64fSLiad Kaufman status = ADD_STA_SUCCESS; 341b2c1bf59SSara Sharon return iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 3429794c64fSLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), 3439794c64fSLiad Kaufman &cmd, &status); 3449794c64fSLiad Kaufman } 3459794c64fSLiad Kaufman 346cfbc6c4cSSara Sharon static int iwl_mvm_disable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 347cfbc6c4cSSara Sharon int queue, u8 tid, u8 flags) 34899448a8cSJohannes Berg { 34999448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 35099448a8cSJohannes Berg .scd_queue = queue, 35199448a8cSJohannes Berg .action = SCD_CFG_DISABLE_QUEUE, 35299448a8cSJohannes Berg }; 35399448a8cSJohannes Berg int ret; 35499448a8cSJohannes Berg 35599448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) { 35699448a8cSJohannes Berg iwl_trans_txq_free(mvm->trans, queue); 35799448a8cSJohannes Berg 35899448a8cSJohannes Berg return 0; 35999448a8cSJohannes Berg } 36099448a8cSJohannes Berg 361f3f240f9SJohannes Berg if (WARN_ON(mvm->queue_info[queue].tid_bitmap == 0)) 36299448a8cSJohannes Berg return 0; 36399448a8cSJohannes Berg 36499448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 36599448a8cSJohannes Berg 3661c14089eSJohannes Berg cmd.action = mvm->queue_info[queue].tid_bitmap ? 36799448a8cSJohannes Berg SCD_CFG_ENABLE_QUEUE : SCD_CFG_DISABLE_QUEUE; 36899448a8cSJohannes Berg if (cmd.action == SCD_CFG_DISABLE_QUEUE) 36999448a8cSJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_FREE; 37099448a8cSJohannes Berg 37199448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 372cfbc6c4cSSara Sharon "Disabling TXQ #%d tids=0x%x\n", 37399448a8cSJohannes Berg queue, 374cfbc6c4cSSara Sharon mvm->queue_info[queue].tid_bitmap); 37599448a8cSJohannes Berg 37699448a8cSJohannes Berg /* If the queue is still enabled - nothing left to do in this func */ 377f3f240f9SJohannes Berg if (cmd.action == SCD_CFG_ENABLE_QUEUE) 37899448a8cSJohannes Berg return 0; 37999448a8cSJohannes Berg 38099448a8cSJohannes Berg cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 38199448a8cSJohannes Berg cmd.tid = mvm->queue_info[queue].txq_tid; 38299448a8cSJohannes Berg 38399448a8cSJohannes Berg /* Make sure queue info is correct even though we overwrite it */ 384cfbc6c4cSSara Sharon WARN(mvm->queue_info[queue].tid_bitmap, 385cfbc6c4cSSara Sharon "TXQ #%d info out-of-sync - tids=0x%x\n", 386cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 38799448a8cSJohannes Berg 38899448a8cSJohannes Berg /* If we are here - the queue is freed and we can zero out these vals */ 38999448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap = 0; 390cfbc6c4cSSara Sharon 391cfbc6c4cSSara Sharon if (sta) { 392cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 393cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 394cfbc6c4cSSara Sharon 395cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 396cfbc6c4cSSara Sharon } 39799448a8cSJohannes Berg 39899448a8cSJohannes Berg /* Regardless if this is a reserved TXQ for a STA - mark it as false */ 39999448a8cSJohannes Berg mvm->queue_info[queue].reserved = false; 40099448a8cSJohannes Berg 40199448a8cSJohannes Berg iwl_trans_txq_disable(mvm->trans, queue, false); 40299448a8cSJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, flags, 40399448a8cSJohannes Berg sizeof(struct iwl_scd_txq_cfg_cmd), &cmd); 40499448a8cSJohannes Berg 40599448a8cSJohannes Berg if (ret) 40699448a8cSJohannes Berg IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n", 40799448a8cSJohannes Berg queue, ret); 40899448a8cSJohannes Berg return ret; 40999448a8cSJohannes Berg } 41099448a8cSJohannes Berg 41142db09c1SLiad Kaufman static int iwl_mvm_get_queue_agg_tids(struct iwl_mvm *mvm, int queue) 41242db09c1SLiad Kaufman { 41342db09c1SLiad Kaufman struct ieee80211_sta *sta; 41442db09c1SLiad Kaufman struct iwl_mvm_sta *mvmsta; 41542db09c1SLiad Kaufman unsigned long tid_bitmap; 41642db09c1SLiad Kaufman unsigned long agg_tids = 0; 417806911daSSharon Dvir u8 sta_id; 41842db09c1SLiad Kaufman int tid; 41942db09c1SLiad Kaufman 42042db09c1SLiad Kaufman lockdep_assert_held(&mvm->mutex); 42142db09c1SLiad Kaufman 422bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 423bb49701bSSara Sharon return -EINVAL; 424bb49701bSSara Sharon 42542db09c1SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 42642db09c1SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 42742db09c1SLiad Kaufman 42842db09c1SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 42942db09c1SLiad Kaufman lockdep_is_held(&mvm->mutex)); 43042db09c1SLiad Kaufman 43142db09c1SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 43242db09c1SLiad Kaufman return -EINVAL; 43342db09c1SLiad Kaufman 43442db09c1SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 43542db09c1SLiad Kaufman 43642db09c1SLiad Kaufman spin_lock_bh(&mvmsta->lock); 43742db09c1SLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 43842db09c1SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 43942db09c1SLiad Kaufman agg_tids |= BIT(tid); 44042db09c1SLiad Kaufman } 44142db09c1SLiad Kaufman spin_unlock_bh(&mvmsta->lock); 44242db09c1SLiad Kaufman 44342db09c1SLiad Kaufman return agg_tids; 44442db09c1SLiad Kaufman } 44542db09c1SLiad Kaufman 4469794c64fSLiad Kaufman /* 4479794c64fSLiad Kaufman * Remove a queue from a station's resources. 4489794c64fSLiad Kaufman * Note that this only marks as free. It DOESN'T delete a BA agreement, and 4499794c64fSLiad Kaufman * doesn't disable the queue 4509794c64fSLiad Kaufman */ 4519794c64fSLiad Kaufman static int iwl_mvm_remove_sta_queue_marking(struct iwl_mvm *mvm, int queue) 4529794c64fSLiad Kaufman { 4539794c64fSLiad Kaufman struct ieee80211_sta *sta; 4549794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 4559794c64fSLiad Kaufman unsigned long tid_bitmap; 4569794c64fSLiad Kaufman unsigned long disable_agg_tids = 0; 4579794c64fSLiad Kaufman u8 sta_id; 4589794c64fSLiad Kaufman int tid; 4599794c64fSLiad Kaufman 4609794c64fSLiad Kaufman lockdep_assert_held(&mvm->mutex); 4619794c64fSLiad Kaufman 462bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 463bb49701bSSara Sharon return -EINVAL; 464bb49701bSSara Sharon 4659794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 4669794c64fSLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 4679794c64fSLiad Kaufman 4689794c64fSLiad Kaufman rcu_read_lock(); 4699794c64fSLiad Kaufman 4709794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 4719794c64fSLiad Kaufman 4729794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 4739794c64fSLiad Kaufman rcu_read_unlock(); 4749794c64fSLiad Kaufman return 0; 4759794c64fSLiad Kaufman } 4769794c64fSLiad Kaufman 4779794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 4789794c64fSLiad Kaufman 4799794c64fSLiad Kaufman spin_lock_bh(&mvmsta->lock); 48042db09c1SLiad Kaufman /* Unmap MAC queues and TIDs from this queue */ 4819794c64fSLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 482cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 483cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 484cfbc6c4cSSara Sharon 4859794c64fSLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 4869794c64fSLiad Kaufman disable_agg_tids |= BIT(tid); 4876862fceeSSara Sharon mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 488cfbc6c4cSSara Sharon 489cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 4909794c64fSLiad Kaufman } 4919794c64fSLiad Kaufman 49242db09c1SLiad Kaufman mvmsta->tfd_queue_msk &= ~BIT(queue); /* Don't use this queue anymore */ 4939794c64fSLiad Kaufman spin_unlock_bh(&mvmsta->lock); 4949794c64fSLiad Kaufman 4959794c64fSLiad Kaufman rcu_read_unlock(); 4969794c64fSLiad Kaufman 49706bc6f6eSJohannes Berg /* 49806bc6f6eSJohannes Berg * The TX path may have been using this TXQ_ID from the tid_data, 49906bc6f6eSJohannes Berg * so make sure it's no longer running so that we can safely reuse 50006bc6f6eSJohannes Berg * this TXQ later. We've set all the TIDs to IWL_MVM_INVALID_QUEUE 50106bc6f6eSJohannes Berg * above, but nothing guarantees we've stopped using them. Thus, 50206bc6f6eSJohannes Berg * without this, we could get to iwl_mvm_disable_txq() and remove 50306bc6f6eSJohannes Berg * the queue while still sending frames to it. 50406bc6f6eSJohannes Berg */ 50506bc6f6eSJohannes Berg synchronize_net(); 50606bc6f6eSJohannes Berg 5079794c64fSLiad Kaufman return disable_agg_tids; 5089794c64fSLiad Kaufman } 5099794c64fSLiad Kaufman 51001796ff2SSara Sharon static int iwl_mvm_free_inactive_queue(struct iwl_mvm *mvm, int queue, 511cfbc6c4cSSara Sharon struct ieee80211_sta *old_sta, 512724fe771SJohannes Berg u8 new_sta_id) 51301796ff2SSara Sharon { 51401796ff2SSara Sharon struct iwl_mvm_sta *mvmsta; 515cfbc6c4cSSara Sharon u8 sta_id, tid; 51601796ff2SSara Sharon unsigned long disable_agg_tids = 0; 517724fe771SJohannes Berg bool same_sta; 51801796ff2SSara Sharon int ret; 51901796ff2SSara Sharon 52001796ff2SSara Sharon lockdep_assert_held(&mvm->mutex); 52101796ff2SSara Sharon 522bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 523bb49701bSSara Sharon return -EINVAL; 524bb49701bSSara Sharon 52501796ff2SSara Sharon sta_id = mvm->queue_info[queue].ra_sta_id; 52601796ff2SSara Sharon tid = mvm->queue_info[queue].txq_tid; 52701796ff2SSara Sharon 528724fe771SJohannes Berg same_sta = sta_id == new_sta_id; 529724fe771SJohannes Berg 53001796ff2SSara Sharon mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 531e3df1e4bSSharon Dvir if (WARN_ON(!mvmsta)) 532e3df1e4bSSharon Dvir return -EINVAL; 53301796ff2SSara Sharon 53401796ff2SSara Sharon disable_agg_tids = iwl_mvm_remove_sta_queue_marking(mvm, queue); 53501796ff2SSara Sharon /* Disable the queue */ 53601796ff2SSara Sharon if (disable_agg_tids) 53701796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 53801796ff2SSara Sharon disable_agg_tids, false); 53901796ff2SSara Sharon 540cfbc6c4cSSara Sharon ret = iwl_mvm_disable_txq(mvm, old_sta, queue, tid, 0); 54101796ff2SSara Sharon if (ret) { 54201796ff2SSara Sharon IWL_ERR(mvm, 54301796ff2SSara Sharon "Failed to free inactive queue %d (ret=%d)\n", 54401796ff2SSara Sharon queue, ret); 54501796ff2SSara Sharon 54601796ff2SSara Sharon return ret; 54701796ff2SSara Sharon } 54801796ff2SSara Sharon 54901796ff2SSara Sharon /* If TXQ is allocated to another STA, update removal in FW */ 55001796ff2SSara Sharon if (!same_sta) 55101796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 0, true); 55201796ff2SSara Sharon 55301796ff2SSara Sharon return 0; 55401796ff2SSara Sharon } 55501796ff2SSara Sharon 55642db09c1SLiad Kaufman static int iwl_mvm_get_shared_queue(struct iwl_mvm *mvm, 55742db09c1SLiad Kaufman unsigned long tfd_queue_mask, u8 ac) 55842db09c1SLiad Kaufman { 55942db09c1SLiad Kaufman int queue = 0; 56042db09c1SLiad Kaufman u8 ac_to_queue[IEEE80211_NUM_ACS]; 56142db09c1SLiad Kaufman int i; 56242db09c1SLiad Kaufman 56390d2d94cSJohannes Berg /* 56490d2d94cSJohannes Berg * This protects us against grabbing a queue that's being reconfigured 56590d2d94cSJohannes Berg * by the inactivity checker. 56690d2d94cSJohannes Berg */ 56790d2d94cSJohannes Berg lockdep_assert_held(&mvm->mutex); 56890d2d94cSJohannes Berg 569bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 570bb49701bSSara Sharon return -EINVAL; 57142db09c1SLiad Kaufman 57242db09c1SLiad Kaufman memset(&ac_to_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(ac_to_queue)); 57342db09c1SLiad Kaufman 57442db09c1SLiad Kaufman /* See what ACs the existing queues for this STA have */ 57542db09c1SLiad Kaufman for_each_set_bit(i, &tfd_queue_mask, IWL_MVM_DQA_MAX_DATA_QUEUE) { 57642db09c1SLiad Kaufman /* Only DATA queues can be shared */ 57742db09c1SLiad Kaufman if (i < IWL_MVM_DQA_MIN_DATA_QUEUE && 57842db09c1SLiad Kaufman i != IWL_MVM_DQA_BSS_CLIENT_QUEUE) 57942db09c1SLiad Kaufman continue; 58042db09c1SLiad Kaufman 58142db09c1SLiad Kaufman ac_to_queue[mvm->queue_info[i].mac80211_ac] = i; 58242db09c1SLiad Kaufman } 58342db09c1SLiad Kaufman 58442db09c1SLiad Kaufman /* 58542db09c1SLiad Kaufman * The queue to share is chosen only from DATA queues as follows (in 58642db09c1SLiad Kaufman * descending priority): 58742db09c1SLiad Kaufman * 1. An AC_BE queue 58842db09c1SLiad Kaufman * 2. Same AC queue 58942db09c1SLiad Kaufman * 3. Highest AC queue that is lower than new AC 59042db09c1SLiad Kaufman * 4. Any existing AC (there always is at least 1 DATA queue) 59142db09c1SLiad Kaufman */ 59242db09c1SLiad Kaufman 59342db09c1SLiad Kaufman /* Priority 1: An AC_BE queue */ 59442db09c1SLiad Kaufman if (ac_to_queue[IEEE80211_AC_BE] != IEEE80211_INVAL_HW_QUEUE) 59542db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BE]; 59642db09c1SLiad Kaufman /* Priority 2: Same AC queue */ 59742db09c1SLiad Kaufman else if (ac_to_queue[ac] != IEEE80211_INVAL_HW_QUEUE) 59842db09c1SLiad Kaufman queue = ac_to_queue[ac]; 59942db09c1SLiad Kaufman /* Priority 3a: If new AC is VO and VI exists - use VI */ 60042db09c1SLiad Kaufman else if (ac == IEEE80211_AC_VO && 60142db09c1SLiad Kaufman ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 60242db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 60342db09c1SLiad Kaufman /* Priority 3b: No BE so only AC less than the new one is BK */ 60442db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_BK] != IEEE80211_INVAL_HW_QUEUE) 60542db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BK]; 60642db09c1SLiad Kaufman /* Priority 4a: No BE nor BK - use VI if exists */ 60742db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 60842db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 60942db09c1SLiad Kaufman /* Priority 4b: No BE, BK nor VI - use VO if exists */ 61042db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VO] != IEEE80211_INVAL_HW_QUEUE) 61142db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VO]; 61242db09c1SLiad Kaufman 61342db09c1SLiad Kaufman /* Make sure queue found (or not) is legal */ 6149f9af3d7SLiad Kaufman if (!iwl_mvm_is_dqa_data_queue(mvm, queue) && 6159f9af3d7SLiad Kaufman !iwl_mvm_is_dqa_mgmt_queue(mvm, queue) && 6169f9af3d7SLiad Kaufman (queue != IWL_MVM_DQA_BSS_CLIENT_QUEUE)) { 61742db09c1SLiad Kaufman IWL_ERR(mvm, "No DATA queues available to share\n"); 6189f9af3d7SLiad Kaufman return -ENOSPC; 6199f9af3d7SLiad Kaufman } 6209f9af3d7SLiad Kaufman 62142db09c1SLiad Kaufman return queue; 62242db09c1SLiad Kaufman } 62342db09c1SLiad Kaufman 62458f2cc57SLiad Kaufman /* 6259f9af3d7SLiad Kaufman * If a given queue has a higher AC than the TID stream that is being compared 6269f9af3d7SLiad Kaufman * to, the queue needs to be redirected to the lower AC. This function does that 62758f2cc57SLiad Kaufman * in such a case, otherwise - if no redirection required - it does nothing, 62858f2cc57SLiad Kaufman * unless the %force param is true. 62958f2cc57SLiad Kaufman */ 630cfbc6c4cSSara Sharon static int iwl_mvm_redirect_queue(struct iwl_mvm *mvm, int queue, int tid, 63158f2cc57SLiad Kaufman int ac, int ssn, unsigned int wdg_timeout, 632cfbc6c4cSSara Sharon bool force, struct iwl_mvm_txq *txq) 63358f2cc57SLiad Kaufman { 63458f2cc57SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 63558f2cc57SLiad Kaufman .scd_queue = queue, 636f7c692deSLiad Kaufman .action = SCD_CFG_DISABLE_QUEUE, 63758f2cc57SLiad Kaufman }; 63858f2cc57SLiad Kaufman bool shared_queue; 63958f2cc57SLiad Kaufman int ret; 64058f2cc57SLiad Kaufman 641bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 642bb49701bSSara Sharon return -EINVAL; 643bb49701bSSara Sharon 64458f2cc57SLiad Kaufman /* 64558f2cc57SLiad Kaufman * If the AC is lower than current one - FIFO needs to be redirected to 64658f2cc57SLiad Kaufman * the lowest one of the streams in the queue. Check if this is needed 64758f2cc57SLiad Kaufman * here. 64858f2cc57SLiad Kaufman * Notice that the enum ieee80211_ac_numbers is "flipped", so BK is with 64958f2cc57SLiad Kaufman * value 3 and VO with value 0, so to check if ac X is lower than ac Y 65058f2cc57SLiad Kaufman * we need to check if the numerical value of X is LARGER than of Y. 65158f2cc57SLiad Kaufman */ 65258f2cc57SLiad Kaufman if (ac <= mvm->queue_info[queue].mac80211_ac && !force) { 65358f2cc57SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 65458f2cc57SLiad Kaufman "No redirection needed on TXQ #%d\n", 65558f2cc57SLiad Kaufman queue); 65658f2cc57SLiad Kaufman return 0; 65758f2cc57SLiad Kaufman } 65858f2cc57SLiad Kaufman 65958f2cc57SLiad Kaufman cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 66058f2cc57SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[mvm->queue_info[queue].mac80211_ac]; 661edbe961cSLiad Kaufman cmd.tid = mvm->queue_info[queue].txq_tid; 6621c14089eSJohannes Berg shared_queue = hweight16(mvm->queue_info[queue].tid_bitmap) > 1; 66358f2cc57SLiad Kaufman 6649f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Redirecting TXQ #%d to FIFO #%d\n", 66558f2cc57SLiad Kaufman queue, iwl_mvm_ac_to_tx_fifo[ac]); 66658f2cc57SLiad Kaufman 667cfbc6c4cSSara Sharon /* Stop the queue and wait for it to empty */ 668cfbc6c4cSSara Sharon txq->stopped = true; 669cfbc6c4cSSara Sharon 670a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(queue)); 67158f2cc57SLiad Kaufman if (ret) { 67258f2cc57SLiad Kaufman IWL_ERR(mvm, "Error draining queue %d before reconfig\n", 67358f2cc57SLiad Kaufman queue); 67458f2cc57SLiad Kaufman ret = -EIO; 67558f2cc57SLiad Kaufman goto out; 67658f2cc57SLiad Kaufman } 67758f2cc57SLiad Kaufman 67858f2cc57SLiad Kaufman /* Before redirecting the queue we need to de-activate it */ 67958f2cc57SLiad Kaufman iwl_trans_txq_disable(mvm->trans, queue, false); 68058f2cc57SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 68158f2cc57SLiad Kaufman if (ret) 68258f2cc57SLiad Kaufman IWL_ERR(mvm, "Failed SCD disable TXQ %d (ret=%d)\n", queue, 68358f2cc57SLiad Kaufman ret); 68458f2cc57SLiad Kaufman 68558f2cc57SLiad Kaufman /* Make sure the SCD wrptr is correctly set before reconfiguring */ 686ca3b9c6bSSara Sharon iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, wdg_timeout); 68758f2cc57SLiad Kaufman 688edbe961cSLiad Kaufman /* Update the TID "owner" of the queue */ 689edbe961cSLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 690edbe961cSLiad Kaufman 69158f2cc57SLiad Kaufman /* TODO: Work-around SCD bug when moving back by multiples of 0x40 */ 69258f2cc57SLiad Kaufman 69358f2cc57SLiad Kaufman /* Redirect to lower AC */ 69458f2cc57SLiad Kaufman iwl_mvm_reconfig_scd(mvm, queue, iwl_mvm_ac_to_tx_fifo[ac], 6950ec9257bSSara Sharon cmd.sta_id, tid, IWL_FRAME_LIMIT, ssn); 69658f2cc57SLiad Kaufman 69758f2cc57SLiad Kaufman /* Update AC marking of the queue */ 69858f2cc57SLiad Kaufman mvm->queue_info[queue].mac80211_ac = ac; 69958f2cc57SLiad Kaufman 70058f2cc57SLiad Kaufman /* 70158f2cc57SLiad Kaufman * Mark queue as shared in transport if shared 70258f2cc57SLiad Kaufman * Note this has to be done after queue enablement because enablement 70358f2cc57SLiad Kaufman * can also set this value, and there is no indication there to shared 70458f2cc57SLiad Kaufman * queues 70558f2cc57SLiad Kaufman */ 70658f2cc57SLiad Kaufman if (shared_queue) 70758f2cc57SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 70858f2cc57SLiad Kaufman 70958f2cc57SLiad Kaufman out: 710cfbc6c4cSSara Sharon /* Continue using the queue */ 711cfbc6c4cSSara Sharon txq->stopped = false; 71258f2cc57SLiad Kaufman 71358f2cc57SLiad Kaufman return ret; 71458f2cc57SLiad Kaufman } 71558f2cc57SLiad Kaufman 71699448a8cSJohannes Berg static int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 sta_id, 71799448a8cSJohannes Berg u8 minq, u8 maxq) 71899448a8cSJohannes Berg { 71999448a8cSJohannes Berg int i; 72099448a8cSJohannes Berg 721f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 72299448a8cSJohannes Berg 723e5b72e3bSJohannes Berg if (WARN(maxq >= mvm->trans->trans_cfg->base_params->num_of_queues, 724e5b72e3bSJohannes Berg "max queue %d >= num_of_queues (%d)", maxq, 725e5b72e3bSJohannes Berg mvm->trans->trans_cfg->base_params->num_of_queues)) 726e5b72e3bSJohannes Berg maxq = mvm->trans->trans_cfg->base_params->num_of_queues - 1; 727e5b72e3bSJohannes Berg 72899448a8cSJohannes Berg /* This should not be hit with new TX path */ 72999448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 73099448a8cSJohannes Berg return -ENOSPC; 73199448a8cSJohannes Berg 73299448a8cSJohannes Berg /* Start by looking for a free queue */ 73399448a8cSJohannes Berg for (i = minq; i <= maxq; i++) 7341c14089eSJohannes Berg if (mvm->queue_info[i].tid_bitmap == 0 && 73599448a8cSJohannes Berg mvm->queue_info[i].status == IWL_MVM_QUEUE_FREE) 73699448a8cSJohannes Berg return i; 73799448a8cSJohannes Berg 73899448a8cSJohannes Berg return -ENOSPC; 73999448a8cSJohannes Berg } 74099448a8cSJohannes Berg 741cfbc6c4cSSara Sharon static int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm, 74299448a8cSJohannes Berg u8 sta_id, u8 tid, unsigned int timeout) 74399448a8cSJohannes Berg { 7449a16ee0cSShaul Triebitz int queue, size = max_t(u32, IWL_DEFAULT_QUEUE_SIZE, 7459a16ee0cSShaul Triebitz mvm->trans->cfg->min_256_ba_txq_size); 74699448a8cSJohannes Berg 74799448a8cSJohannes Berg if (tid == IWL_MAX_TID_COUNT) { 74899448a8cSJohannes Berg tid = IWL_MGMT_TID; 749ff911dcaSShaul Triebitz size = max_t(u32, IWL_MGMT_QUEUE_SIZE, 750ff911dcaSShaul Triebitz mvm->trans->cfg->min_txq_size); 75199448a8cSJohannes Berg } 75299448a8cSJohannes Berg 75392f78d4bSJohannes Berg do { 75492f78d4bSJohannes Berg __le16 enable = cpu_to_le16(TX_QUEUE_CFG_ENABLE_QUEUE); 75592f78d4bSJohannes Berg 75692f78d4bSJohannes Berg queue = iwl_trans_txq_alloc(mvm->trans, enable, 75792f78d4bSJohannes Berg sta_id, tid, SCD_QUEUE_CFG, 75892f78d4bSJohannes Berg size, timeout); 75992f78d4bSJohannes Berg 76092f78d4bSJohannes Berg if (queue < 0) 76199448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 76292f78d4bSJohannes Berg "Failed allocating TXQ of size %d for sta %d tid %d, ret: %d\n", 76392f78d4bSJohannes Berg size, sta_id, tid, queue); 76492f78d4bSJohannes Berg size /= 2; 76592f78d4bSJohannes Berg } while (queue < 0 && size >= 16); 76692f78d4bSJohannes Berg 76792f78d4bSJohannes Berg if (queue < 0) 76899448a8cSJohannes Berg return queue; 76999448a8cSJohannes Berg 77099448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Enabling TXQ #%d for sta %d tid %d\n", 77199448a8cSJohannes Berg queue, sta_id, tid); 77299448a8cSJohannes Berg 77399448a8cSJohannes Berg return queue; 77499448a8cSJohannes Berg } 77599448a8cSJohannes Berg 776310181ecSSara Sharon static int iwl_mvm_sta_alloc_queue_tvqm(struct iwl_mvm *mvm, 777310181ecSSara Sharon struct ieee80211_sta *sta, u8 ac, 778310181ecSSara Sharon int tid) 779310181ecSSara Sharon { 780310181ecSSara Sharon struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 781cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 782cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 783310181ecSSara Sharon unsigned int wdg_timeout = 784310181ecSSara Sharon iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 785310181ecSSara Sharon int queue = -1; 786310181ecSSara Sharon 787310181ecSSara Sharon lockdep_assert_held(&mvm->mutex); 788310181ecSSara Sharon 789310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 790310181ecSSara Sharon "Allocating queue for sta %d on tid %d\n", 791310181ecSSara Sharon mvmsta->sta_id, tid); 792cfbc6c4cSSara Sharon queue = iwl_mvm_tvqm_enable_txq(mvm, mvmsta->sta_id, tid, wdg_timeout); 793310181ecSSara Sharon if (queue < 0) 794310181ecSSara Sharon return queue; 795310181ecSSara Sharon 796cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 797cfbc6c4cSSara Sharon mvm->tvqm_info[queue].txq_tid = tid; 798cfbc6c4cSSara Sharon mvm->tvqm_info[queue].sta_id = mvmsta->sta_id; 799cfbc6c4cSSara Sharon 800310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, "Allocated queue is %d\n", queue); 801310181ecSSara Sharon 802310181ecSSara Sharon spin_lock_bh(&mvmsta->lock); 803310181ecSSara Sharon mvmsta->tid_data[tid].txq_id = queue; 804310181ecSSara Sharon spin_unlock_bh(&mvmsta->lock); 805310181ecSSara Sharon 806310181ecSSara Sharon return 0; 807310181ecSSara Sharon } 808310181ecSSara Sharon 809cfbc6c4cSSara Sharon static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, 810cfbc6c4cSSara Sharon struct ieee80211_sta *sta, 811cfbc6c4cSSara Sharon int queue, u8 sta_id, u8 tid) 81299448a8cSJohannes Berg { 81399448a8cSJohannes Berg bool enable_queue = true; 81499448a8cSJohannes Berg 81599448a8cSJohannes Berg /* Make sure this TID isn't already enabled */ 81699448a8cSJohannes Berg if (mvm->queue_info[queue].tid_bitmap & BIT(tid)) { 81799448a8cSJohannes Berg IWL_ERR(mvm, "Trying to enable TXQ %d with existing TID %d\n", 81899448a8cSJohannes Berg queue, tid); 81999448a8cSJohannes Berg return false; 82099448a8cSJohannes Berg } 82199448a8cSJohannes Berg 82299448a8cSJohannes Berg /* Update mappings and refcounts */ 8231c14089eSJohannes Berg if (mvm->queue_info[queue].tid_bitmap) 82499448a8cSJohannes Berg enable_queue = false; 82599448a8cSJohannes Berg 82699448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap |= BIT(tid); 82799448a8cSJohannes Berg mvm->queue_info[queue].ra_sta_id = sta_id; 82899448a8cSJohannes Berg 82999448a8cSJohannes Berg if (enable_queue) { 83099448a8cSJohannes Berg if (tid != IWL_MAX_TID_COUNT) 83199448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = 83299448a8cSJohannes Berg tid_to_mac80211_ac[tid]; 83399448a8cSJohannes Berg else 83499448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = IEEE80211_AC_VO; 83599448a8cSJohannes Berg 83699448a8cSJohannes Berg mvm->queue_info[queue].txq_tid = tid; 83799448a8cSJohannes Berg } 83899448a8cSJohannes Berg 839cfbc6c4cSSara Sharon if (sta) { 840cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 841cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 842cfbc6c4cSSara Sharon 843cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 844cfbc6c4cSSara Sharon } 845cfbc6c4cSSara Sharon 84699448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 847cfbc6c4cSSara Sharon "Enabling TXQ #%d tids=0x%x\n", 848cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 84999448a8cSJohannes Berg 85099448a8cSJohannes Berg return enable_queue; 85199448a8cSJohannes Berg } 85299448a8cSJohannes Berg 853cfbc6c4cSSara Sharon static bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 854cfbc6c4cSSara Sharon int queue, u16 ssn, 85599448a8cSJohannes Berg const struct iwl_trans_txq_scd_cfg *cfg, 85699448a8cSJohannes Berg unsigned int wdg_timeout) 85799448a8cSJohannes Berg { 85899448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 85999448a8cSJohannes Berg .scd_queue = queue, 86099448a8cSJohannes Berg .action = SCD_CFG_ENABLE_QUEUE, 86199448a8cSJohannes Berg .window = cfg->frame_limit, 86299448a8cSJohannes Berg .sta_id = cfg->sta_id, 86399448a8cSJohannes Berg .ssn = cpu_to_le16(ssn), 86499448a8cSJohannes Berg .tx_fifo = cfg->fifo, 86599448a8cSJohannes Berg .aggregate = cfg->aggregate, 86699448a8cSJohannes Berg .tid = cfg->tid, 86799448a8cSJohannes Berg }; 86899448a8cSJohannes Berg bool inc_ssn; 86999448a8cSJohannes Berg 87099448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 87199448a8cSJohannes Berg return false; 87299448a8cSJohannes Berg 87399448a8cSJohannes Berg /* Send the enabling command if we need to */ 874cfbc6c4cSSara Sharon if (!iwl_mvm_update_txq_mapping(mvm, sta, queue, cfg->sta_id, cfg->tid)) 87599448a8cSJohannes Berg return false; 87699448a8cSJohannes Berg 87799448a8cSJohannes Berg inc_ssn = iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, 87899448a8cSJohannes Berg NULL, wdg_timeout); 87999448a8cSJohannes Berg if (inc_ssn) 88099448a8cSJohannes Berg le16_add_cpu(&cmd.ssn, 1); 88199448a8cSJohannes Berg 88299448a8cSJohannes Berg WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd), 88399448a8cSJohannes Berg "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo); 88499448a8cSJohannes Berg 88599448a8cSJohannes Berg return inc_ssn; 88699448a8cSJohannes Berg } 88799448a8cSJohannes Berg 888b3a87f11SJohannes Berg static void iwl_mvm_change_queue_tid(struct iwl_mvm *mvm, int queue) 88919aefa45SLiad Kaufman { 89019aefa45SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 89119aefa45SLiad Kaufman .scd_queue = queue, 89219aefa45SLiad Kaufman .action = SCD_CFG_UPDATE_QUEUE_TID, 89319aefa45SLiad Kaufman }; 89419aefa45SLiad Kaufman int tid; 89519aefa45SLiad Kaufman unsigned long tid_bitmap; 89619aefa45SLiad Kaufman int ret; 89719aefa45SLiad Kaufman 89819aefa45SLiad Kaufman lockdep_assert_held(&mvm->mutex); 89919aefa45SLiad Kaufman 900bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 901bb49701bSSara Sharon return; 902bb49701bSSara Sharon 90319aefa45SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 90419aefa45SLiad Kaufman 90519aefa45SLiad Kaufman if (WARN(!tid_bitmap, "TXQ %d has no tids assigned to it\n", queue)) 90619aefa45SLiad Kaufman return; 90719aefa45SLiad Kaufman 90819aefa45SLiad Kaufman /* Find any TID for queue */ 90919aefa45SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 91019aefa45SLiad Kaufman cmd.tid = tid; 91119aefa45SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 91219aefa45SLiad Kaufman 91319aefa45SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 914341ca402SLiad Kaufman if (ret) { 91519aefa45SLiad Kaufman IWL_ERR(mvm, "Failed to update owner of TXQ %d (ret=%d)\n", 91619aefa45SLiad Kaufman queue, ret); 917341ca402SLiad Kaufman return; 918341ca402SLiad Kaufman } 919341ca402SLiad Kaufman 920341ca402SLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 92119aefa45SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Changed TXQ %d ownership to tid %d\n", 92219aefa45SLiad Kaufman queue, tid); 92319aefa45SLiad Kaufman } 92419aefa45SLiad Kaufman 9259f9af3d7SLiad Kaufman static void iwl_mvm_unshare_queue(struct iwl_mvm *mvm, int queue) 9269f9af3d7SLiad Kaufman { 9279f9af3d7SLiad Kaufman struct ieee80211_sta *sta; 9289f9af3d7SLiad Kaufman struct iwl_mvm_sta *mvmsta; 929806911daSSharon Dvir u8 sta_id; 9309f9af3d7SLiad Kaufman int tid = -1; 9319f9af3d7SLiad Kaufman unsigned long tid_bitmap; 9329f9af3d7SLiad Kaufman unsigned int wdg_timeout; 9339f9af3d7SLiad Kaufman int ssn; 9349f9af3d7SLiad Kaufman int ret = true; 9359f9af3d7SLiad Kaufman 936bb49701bSSara Sharon /* queue sharing is disabled on new TX path */ 937bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 938bb49701bSSara Sharon return; 939bb49701bSSara Sharon 9409f9af3d7SLiad Kaufman lockdep_assert_held(&mvm->mutex); 9419f9af3d7SLiad Kaufman 9429f9af3d7SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 9439f9af3d7SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 9449f9af3d7SLiad Kaufman 9459f9af3d7SLiad Kaufman /* Find TID for queue, and make sure it is the only one on the queue */ 9469f9af3d7SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 9479f9af3d7SLiad Kaufman if (tid_bitmap != BIT(tid)) { 9489f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to unshare q %d, active tids=0x%lx\n", 9499f9af3d7SLiad Kaufman queue, tid_bitmap); 9509f9af3d7SLiad Kaufman return; 9519f9af3d7SLiad Kaufman } 9529f9af3d7SLiad Kaufman 9539f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Unsharing TXQ %d, keeping tid %d\n", queue, 9549f9af3d7SLiad Kaufman tid); 9559f9af3d7SLiad Kaufman 9569f9af3d7SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 9579f9af3d7SLiad Kaufman lockdep_is_held(&mvm->mutex)); 9589f9af3d7SLiad Kaufman 9599f9af3d7SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 9609f9af3d7SLiad Kaufman return; 9619f9af3d7SLiad Kaufman 9629f9af3d7SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 9639f9af3d7SLiad Kaufman wdg_timeout = iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 9649f9af3d7SLiad Kaufman 9659f9af3d7SLiad Kaufman ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 9669f9af3d7SLiad Kaufman 967cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, 9689f9af3d7SLiad Kaufman tid_to_mac80211_ac[tid], ssn, 969cfbc6c4cSSara Sharon wdg_timeout, true, 970cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 9719f9af3d7SLiad Kaufman if (ret) { 9729f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to redirect TXQ %d\n", queue); 9739f9af3d7SLiad Kaufman return; 9749f9af3d7SLiad Kaufman } 9759f9af3d7SLiad Kaufman 9769f9af3d7SLiad Kaufman /* If aggs should be turned back on - do it */ 9779f9af3d7SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) { 9789cd70e80SEmmanuel Grumbach struct iwl_mvm_add_sta_cmd cmd = {0}; 9799f9af3d7SLiad Kaufman 9809f9af3d7SLiad Kaufman mvmsta->tid_disable_agg &= ~BIT(tid); 9819f9af3d7SLiad Kaufman 9829f9af3d7SLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 9839f9af3d7SLiad Kaufman cmd.sta_id = mvmsta->sta_id; 9849f9af3d7SLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 9859f9af3d7SLiad Kaufman cmd.modify_mask = STA_MODIFY_TID_DISABLE_TX; 9869f9af3d7SLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 9879f9af3d7SLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 9889f9af3d7SLiad Kaufman 9899f9af3d7SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 9909f9af3d7SLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), &cmd); 9919f9af3d7SLiad Kaufman if (!ret) { 9929f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 9939f9af3d7SLiad Kaufman "TXQ #%d is now aggregated again\n", 9949f9af3d7SLiad Kaufman queue); 9959f9af3d7SLiad Kaufman 9969f9af3d7SLiad Kaufman /* Mark queue intenally as aggregating again */ 9979f9af3d7SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, false); 9989f9af3d7SLiad Kaufman } 9999f9af3d7SLiad Kaufman } 10009f9af3d7SLiad Kaufman 10019f9af3d7SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 10029f9af3d7SLiad Kaufman } 10039f9af3d7SLiad Kaufman 100499448a8cSJohannes Berg /* 100599448a8cSJohannes Berg * Remove inactive TIDs of a given queue. 100699448a8cSJohannes Berg * If all queue TIDs are inactive - mark the queue as inactive 100799448a8cSJohannes Berg * If only some the queue TIDs are inactive - unmap them from the queue 1008724fe771SJohannes Berg * 1009724fe771SJohannes Berg * Returns %true if all TIDs were removed and the queue could be reused. 101099448a8cSJohannes Berg */ 1011724fe771SJohannes Berg static bool iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm, 101299448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta, int queue, 101390d2d94cSJohannes Berg unsigned long tid_bitmap, 1014b3a87f11SJohannes Berg unsigned long *unshare_queues, 1015b3a87f11SJohannes Berg unsigned long *changetid_queues) 101699448a8cSJohannes Berg { 101799448a8cSJohannes Berg int tid; 101899448a8cSJohannes Berg 101999448a8cSJohannes Berg lockdep_assert_held(&mvmsta->lock); 1020f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 102199448a8cSJohannes Berg 102299448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1023724fe771SJohannes Berg return false; 102499448a8cSJohannes Berg 102599448a8cSJohannes Berg /* Go over all non-active TIDs, incl. IWL_MAX_TID_COUNT (for mgmt) */ 102699448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 102799448a8cSJohannes Berg /* If some TFDs are still queued - don't mark TID as inactive */ 102899448a8cSJohannes Berg if (iwl_mvm_tid_queued(mvm, &mvmsta->tid_data[tid])) 102999448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 103099448a8cSJohannes Berg 103199448a8cSJohannes Berg /* Don't mark as inactive any TID that has an active BA */ 103299448a8cSJohannes Berg if (mvmsta->tid_data[tid].state != IWL_AGG_OFF) 103399448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 103499448a8cSJohannes Berg } 103599448a8cSJohannes Berg 1036724fe771SJohannes Berg /* If all TIDs in the queue are inactive - return it can be reused */ 103799448a8cSJohannes Berg if (tid_bitmap == mvm->queue_info[queue].tid_bitmap) { 1038724fe771SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Queue %d is inactive\n", queue); 1039724fe771SJohannes Berg return true; 104099448a8cSJohannes Berg } 104199448a8cSJohannes Berg 104299448a8cSJohannes Berg /* 104399448a8cSJohannes Berg * If we are here, this is a shared queue and not all TIDs timed-out. 104499448a8cSJohannes Berg * Remove the ones that did. 104599448a8cSJohannes Berg */ 104699448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1047b3a87f11SJohannes Berg u16 tid_bitmap; 104899448a8cSJohannes Berg 104999448a8cSJohannes Berg mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 105099448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 105199448a8cSJohannes Berg 1052b3a87f11SJohannes Berg tid_bitmap = mvm->queue_info[queue].tid_bitmap; 1053b3a87f11SJohannes Berg 1054b3a87f11SJohannes Berg /* 1055b3a87f11SJohannes Berg * We need to take into account a situation in which a TXQ was 1056b3a87f11SJohannes Berg * allocated to TID x, and then turned shared by adding TIDs y 1057b3a87f11SJohannes Berg * and z. If TID x becomes inactive and is removed from the TXQ, 1058b3a87f11SJohannes Berg * ownership must be given to one of the remaining TIDs. 1059b3a87f11SJohannes Berg * This is mainly because if TID x continues - a new queue can't 1060b3a87f11SJohannes Berg * be allocated for it as long as it is an owner of another TXQ. 1061b3a87f11SJohannes Berg * 1062b3a87f11SJohannes Berg * Mark this queue in the right bitmap, we'll send the command 1063b3a87f11SJohannes Berg * to the firmware later. 1064b3a87f11SJohannes Berg */ 1065b3a87f11SJohannes Berg if (!(tid_bitmap & BIT(mvm->queue_info[queue].txq_tid))) 1066b3a87f11SJohannes Berg set_bit(queue, changetid_queues); 1067b3a87f11SJohannes Berg 106899448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 106999448a8cSJohannes Berg "Removing inactive TID %d from shared Q:%d\n", 107099448a8cSJohannes Berg tid, queue); 107199448a8cSJohannes Berg } 107299448a8cSJohannes Berg 107399448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 107499448a8cSJohannes Berg "TXQ #%d left with tid bitmap 0x%x\n", queue, 107599448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap); 107699448a8cSJohannes Berg 107799448a8cSJohannes Berg /* 107899448a8cSJohannes Berg * There may be different TIDs with the same mac queues, so make 107999448a8cSJohannes Berg * sure all TIDs have existing corresponding mac queues enabled 108099448a8cSJohannes Berg */ 108199448a8cSJohannes Berg tid_bitmap = mvm->queue_info[queue].tid_bitmap; 108299448a8cSJohannes Berg 108399448a8cSJohannes Berg /* If the queue is marked as shared - "unshare" it */ 10841c14089eSJohannes Berg if (hweight16(mvm->queue_info[queue].tid_bitmap) == 1 && 108599448a8cSJohannes Berg mvm->queue_info[queue].status == IWL_MVM_QUEUE_SHARED) { 108699448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Marking Q:%d for reconfig\n", 108799448a8cSJohannes Berg queue); 108890d2d94cSJohannes Berg set_bit(queue, unshare_queues); 108999448a8cSJohannes Berg } 1090724fe771SJohannes Berg 1091724fe771SJohannes Berg return false; 109299448a8cSJohannes Berg } 109399448a8cSJohannes Berg 1094724fe771SJohannes Berg /* 1095724fe771SJohannes Berg * Check for inactivity - this includes checking if any queue 1096724fe771SJohannes Berg * can be unshared and finding one (and only one) that can be 1097724fe771SJohannes Berg * reused. 1098724fe771SJohannes Berg * This function is also invoked as a sort of clean-up task, 1099724fe771SJohannes Berg * in which case @alloc_for_sta is IWL_MVM_INVALID_STA. 1100724fe771SJohannes Berg * 1101724fe771SJohannes Berg * Returns the queue number, or -ENOSPC. 1102724fe771SJohannes Berg */ 1103724fe771SJohannes Berg static int iwl_mvm_inactivity_check(struct iwl_mvm *mvm, u8 alloc_for_sta) 110499448a8cSJohannes Berg { 110599448a8cSJohannes Berg unsigned long now = jiffies; 110690d2d94cSJohannes Berg unsigned long unshare_queues = 0; 1107b3a87f11SJohannes Berg unsigned long changetid_queues = 0; 1108724fe771SJohannes Berg int i, ret, free_queue = -ENOSPC; 1109cfbc6c4cSSara Sharon struct ieee80211_sta *queue_owner = NULL; 111099448a8cSJohannes Berg 1111df2a2245SJohannes Berg lockdep_assert_held(&mvm->mutex); 1112df2a2245SJohannes Berg 111399448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1114724fe771SJohannes Berg return -ENOSPC; 111599448a8cSJohannes Berg 111699448a8cSJohannes Berg rcu_read_lock(); 111799448a8cSJohannes Berg 1118459ab045SJohannes Berg /* we skip the CMD queue below by starting at 1 */ 1119459ab045SJohannes Berg BUILD_BUG_ON(IWL_MVM_DQA_CMD_QUEUE != 0); 1120459ab045SJohannes Berg 1121459ab045SJohannes Berg for (i = 1; i < IWL_MAX_HW_QUEUES; i++) { 112299448a8cSJohannes Berg struct ieee80211_sta *sta; 112399448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta; 112499448a8cSJohannes Berg u8 sta_id; 112599448a8cSJohannes Berg int tid; 112699448a8cSJohannes Berg unsigned long inactive_tid_bitmap = 0; 112799448a8cSJohannes Berg unsigned long queue_tid_bitmap; 112899448a8cSJohannes Berg 112999448a8cSJohannes Berg queue_tid_bitmap = mvm->queue_info[i].tid_bitmap; 1130459ab045SJohannes Berg if (!queue_tid_bitmap) 1131459ab045SJohannes Berg continue; 113299448a8cSJohannes Berg 113399448a8cSJohannes Berg /* If TXQ isn't in active use anyway - nothing to do here... */ 113499448a8cSJohannes Berg if (mvm->queue_info[i].status != IWL_MVM_QUEUE_READY && 1135459ab045SJohannes Berg mvm->queue_info[i].status != IWL_MVM_QUEUE_SHARED) 113699448a8cSJohannes Berg continue; 113799448a8cSJohannes Berg 113899448a8cSJohannes Berg /* Check to see if there are inactive TIDs on this queue */ 113999448a8cSJohannes Berg for_each_set_bit(tid, &queue_tid_bitmap, 114099448a8cSJohannes Berg IWL_MAX_TID_COUNT + 1) { 114199448a8cSJohannes Berg if (time_after(mvm->queue_info[i].last_frame_time[tid] + 114299448a8cSJohannes Berg IWL_MVM_DQA_QUEUE_TIMEOUT, now)) 114399448a8cSJohannes Berg continue; 114499448a8cSJohannes Berg 114599448a8cSJohannes Berg inactive_tid_bitmap |= BIT(tid); 114699448a8cSJohannes Berg } 114799448a8cSJohannes Berg 114899448a8cSJohannes Berg /* If all TIDs are active - finish check on this queue */ 114999448a8cSJohannes Berg if (!inactive_tid_bitmap) 115099448a8cSJohannes Berg continue; 115199448a8cSJohannes Berg 115299448a8cSJohannes Berg /* 115399448a8cSJohannes Berg * If we are here - the queue hadn't been served recently and is 115499448a8cSJohannes Berg * in use 115599448a8cSJohannes Berg */ 115699448a8cSJohannes Berg 115799448a8cSJohannes Berg sta_id = mvm->queue_info[i].ra_sta_id; 115899448a8cSJohannes Berg sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 115999448a8cSJohannes Berg 116099448a8cSJohannes Berg /* 116199448a8cSJohannes Berg * If the STA doesn't exist anymore, it isn't an error. It could 116299448a8cSJohannes Berg * be that it was removed since getting the queues, and in this 116399448a8cSJohannes Berg * case it should've inactivated its queues anyway. 116499448a8cSJohannes Berg */ 116599448a8cSJohannes Berg if (IS_ERR_OR_NULL(sta)) 116699448a8cSJohannes Berg continue; 116799448a8cSJohannes Berg 116899448a8cSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 116999448a8cSJohannes Berg 1170f3f240f9SJohannes Berg spin_lock_bh(&mvmsta->lock); 1171724fe771SJohannes Berg ret = iwl_mvm_remove_inactive_tids(mvm, mvmsta, i, 117290d2d94cSJohannes Berg inactive_tid_bitmap, 1173b3a87f11SJohannes Berg &unshare_queues, 1174b3a87f11SJohannes Berg &changetid_queues); 1175e6d419f9SJohannes Berg if (ret && free_queue < 0) { 1176cfbc6c4cSSara Sharon queue_owner = sta; 1177e6d419f9SJohannes Berg free_queue = i; 1178cfbc6c4cSSara Sharon } 1179459ab045SJohannes Berg /* only unlock sta lock - we still need the queue info lock */ 1180f3f240f9SJohannes Berg spin_unlock_bh(&mvmsta->lock); 118199448a8cSJohannes Berg } 118299448a8cSJohannes Berg 1183df2a2245SJohannes Berg 1184df2a2245SJohannes Berg /* Reconfigure queues requiring reconfiguation */ 118590d2d94cSJohannes Berg for_each_set_bit(i, &unshare_queues, IWL_MAX_HW_QUEUES) 118690d2d94cSJohannes Berg iwl_mvm_unshare_queue(mvm, i); 1187b3a87f11SJohannes Berg for_each_set_bit(i, &changetid_queues, IWL_MAX_HW_QUEUES) 1188b3a87f11SJohannes Berg iwl_mvm_change_queue_tid(mvm, i); 1189724fe771SJohannes Berg 1190fbb1461aSJohannes Berg rcu_read_unlock(); 1191fbb1461aSJohannes Berg 1192724fe771SJohannes Berg if (free_queue >= 0 && alloc_for_sta != IWL_MVM_INVALID_STA) { 1193cfbc6c4cSSara Sharon ret = iwl_mvm_free_inactive_queue(mvm, free_queue, queue_owner, 1194724fe771SJohannes Berg alloc_for_sta); 1195fbb1461aSJohannes Berg if (ret) 1196724fe771SJohannes Berg return ret; 1197724fe771SJohannes Berg } 1198724fe771SJohannes Berg 1199724fe771SJohannes Berg return free_queue; 120099448a8cSJohannes Berg } 120199448a8cSJohannes Berg 1202c20e08b0SJohannes Berg static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm, 1203cfbc6c4cSSara Sharon struct ieee80211_sta *sta, u8 ac, int tid) 1204c20e08b0SJohannes Berg { 1205c20e08b0SJohannes Berg struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1206c20e08b0SJohannes Berg struct iwl_trans_txq_scd_cfg cfg = { 1207c20e08b0SJohannes Berg .fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac), 1208c20e08b0SJohannes Berg .sta_id = mvmsta->sta_id, 1209c20e08b0SJohannes Berg .tid = tid, 1210c20e08b0SJohannes Berg .frame_limit = IWL_FRAME_LIMIT, 1211c20e08b0SJohannes Berg }; 1212c20e08b0SJohannes Berg unsigned int wdg_timeout = 1213c20e08b0SJohannes Berg iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 1214c20e08b0SJohannes Berg int queue = -1; 1215c20e08b0SJohannes Berg unsigned long disable_agg_tids = 0; 1216c20e08b0SJohannes Berg enum iwl_mvm_agg_state queue_state; 1217c20e08b0SJohannes Berg bool shared_queue = false, inc_ssn; 1218c20e08b0SJohannes Berg int ssn; 1219c20e08b0SJohannes Berg unsigned long tfd_queue_mask; 1220c20e08b0SJohannes Berg int ret; 1221c20e08b0SJohannes Berg 1222c20e08b0SJohannes Berg lockdep_assert_held(&mvm->mutex); 1223c20e08b0SJohannes Berg 1224c20e08b0SJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1225c20e08b0SJohannes Berg return iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 1226c20e08b0SJohannes Berg 1227c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1228c20e08b0SJohannes Berg tfd_queue_mask = mvmsta->tfd_queue_msk; 122935739348SSara Sharon ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 1230c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1231c20e08b0SJohannes Berg 1232cfbc6c4cSSara Sharon if (tid == IWL_MAX_TID_COUNT) { 1233c20e08b0SJohannes Berg queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 1234c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_MGMT_QUEUE, 1235c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_MGMT_QUEUE); 1236c20e08b0SJohannes Berg if (queue >= IWL_MVM_DQA_MIN_MGMT_QUEUE) 1237c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Found free MGMT queue #%d\n", 1238c20e08b0SJohannes Berg queue); 1239c20e08b0SJohannes Berg 1240c20e08b0SJohannes Berg /* If no such queue is found, we'll use a DATA queue instead */ 1241c20e08b0SJohannes Berg } 1242c20e08b0SJohannes Berg 1243c20e08b0SJohannes Berg if ((queue < 0 && mvmsta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) && 1244c20e08b0SJohannes Berg (mvm->queue_info[mvmsta->reserved_queue].status == 1245724fe771SJohannes Berg IWL_MVM_QUEUE_RESERVED)) { 1246c20e08b0SJohannes Berg queue = mvmsta->reserved_queue; 1247c20e08b0SJohannes Berg mvm->queue_info[queue].reserved = true; 1248c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Using reserved queue #%d\n", queue); 1249c20e08b0SJohannes Berg } 1250c20e08b0SJohannes Berg 1251c20e08b0SJohannes Berg if (queue < 0) 1252c20e08b0SJohannes Berg queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 1253c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 1254c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 1255724fe771SJohannes Berg if (queue < 0) { 1256724fe771SJohannes Berg /* try harder - perhaps kill an inactive queue */ 1257724fe771SJohannes Berg queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id); 1258c20e08b0SJohannes Berg } 1259c20e08b0SJohannes Berg 1260c20e08b0SJohannes Berg /* No free queue - we'll have to share */ 1261c20e08b0SJohannes Berg if (queue <= 0) { 1262c20e08b0SJohannes Berg queue = iwl_mvm_get_shared_queue(mvm, tfd_queue_mask, ac); 1263c20e08b0SJohannes Berg if (queue > 0) { 1264c20e08b0SJohannes Berg shared_queue = true; 1265c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_SHARED; 1266c20e08b0SJohannes Berg } 1267c20e08b0SJohannes Berg } 1268c20e08b0SJohannes Berg 1269c20e08b0SJohannes Berg /* 1270c20e08b0SJohannes Berg * Mark TXQ as ready, even though it hasn't been fully configured yet, 1271c20e08b0SJohannes Berg * to make sure no one else takes it. 1272c20e08b0SJohannes Berg * This will allow avoiding re-acquiring the lock at the end of the 1273c20e08b0SJohannes Berg * configuration. On error we'll mark it back as free. 1274c20e08b0SJohannes Berg */ 1275c20e08b0SJohannes Berg if (queue > 0 && !shared_queue) 1276c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 1277c20e08b0SJohannes Berg 1278c20e08b0SJohannes Berg /* This shouldn't happen - out of queues */ 1279c20e08b0SJohannes Berg if (WARN_ON(queue <= 0)) { 1280c20e08b0SJohannes Berg IWL_ERR(mvm, "No available queues for tid %d on sta_id %d\n", 1281c20e08b0SJohannes Berg tid, cfg.sta_id); 1282c20e08b0SJohannes Berg return queue; 1283c20e08b0SJohannes Berg } 1284c20e08b0SJohannes Berg 1285c20e08b0SJohannes Berg /* 1286c20e08b0SJohannes Berg * Actual en/disablement of aggregations is through the ADD_STA HCMD, 1287c20e08b0SJohannes Berg * but for configuring the SCD to send A-MPDUs we need to mark the queue 1288c20e08b0SJohannes Berg * as aggregatable. 1289c20e08b0SJohannes Berg * Mark all DATA queues as allowing to be aggregated at some point 1290c20e08b0SJohannes Berg */ 1291c20e08b0SJohannes Berg cfg.aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1292c20e08b0SJohannes Berg queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE); 1293c20e08b0SJohannes Berg 1294c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 1295c20e08b0SJohannes Berg "Allocating %squeue #%d to sta %d on tid %d\n", 1296c20e08b0SJohannes Berg shared_queue ? "shared " : "", queue, 1297c20e08b0SJohannes Berg mvmsta->sta_id, tid); 1298c20e08b0SJohannes Berg 1299c20e08b0SJohannes Berg if (shared_queue) { 1300c20e08b0SJohannes Berg /* Disable any open aggs on this queue */ 1301c20e08b0SJohannes Berg disable_agg_tids = iwl_mvm_get_queue_agg_tids(mvm, queue); 1302c20e08b0SJohannes Berg 1303c20e08b0SJohannes Berg if (disable_agg_tids) { 1304c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Disabling aggs on queue %d\n", 1305c20e08b0SJohannes Berg queue); 1306c20e08b0SJohannes Berg iwl_mvm_invalidate_sta_queue(mvm, queue, 1307c20e08b0SJohannes Berg disable_agg_tids, false); 1308c20e08b0SJohannes Berg } 1309c20e08b0SJohannes Berg } 1310c20e08b0SJohannes Berg 1311cfbc6c4cSSara Sharon inc_ssn = iwl_mvm_enable_txq(mvm, sta, queue, ssn, &cfg, wdg_timeout); 1312c20e08b0SJohannes Berg 1313c20e08b0SJohannes Berg /* 1314c20e08b0SJohannes Berg * Mark queue as shared in transport if shared 1315c20e08b0SJohannes Berg * Note this has to be done after queue enablement because enablement 1316c20e08b0SJohannes Berg * can also set this value, and there is no indication there to shared 1317c20e08b0SJohannes Berg * queues 1318c20e08b0SJohannes Berg */ 1319c20e08b0SJohannes Berg if (shared_queue) 1320c20e08b0SJohannes Berg iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 1321c20e08b0SJohannes Berg 1322c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1323c20e08b0SJohannes Berg /* 1324c20e08b0SJohannes Berg * This looks racy, but it is not. We have only one packet for 1325c20e08b0SJohannes Berg * this ra/tid in our Tx path since we stop the Qdisc when we 1326c20e08b0SJohannes Berg * need to allocate a new TFD queue. 1327c20e08b0SJohannes Berg */ 132835739348SSara Sharon if (inc_ssn) { 1329c20e08b0SJohannes Berg mvmsta->tid_data[tid].seq_number += 0x10; 133035739348SSara Sharon ssn = (ssn + 1) & IEEE80211_SCTL_SEQ; 133135739348SSara Sharon } 1332c20e08b0SJohannes Berg mvmsta->tid_data[tid].txq_id = queue; 1333c20e08b0SJohannes Berg mvmsta->tfd_queue_msk |= BIT(queue); 1334c20e08b0SJohannes Berg queue_state = mvmsta->tid_data[tid].state; 1335c20e08b0SJohannes Berg 1336c20e08b0SJohannes Berg if (mvmsta->reserved_queue == queue) 1337c20e08b0SJohannes Berg mvmsta->reserved_queue = IEEE80211_INVAL_HW_QUEUE; 1338c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1339c20e08b0SJohannes Berg 1340c20e08b0SJohannes Berg if (!shared_queue) { 1341c20e08b0SJohannes Berg ret = iwl_mvm_sta_send_to_fw(mvm, sta, true, STA_MODIFY_QUEUES); 1342c20e08b0SJohannes Berg if (ret) 1343c20e08b0SJohannes Berg goto out_err; 1344c20e08b0SJohannes Berg 1345c20e08b0SJohannes Berg /* If we need to re-enable aggregations... */ 1346c20e08b0SJohannes Berg if (queue_state == IWL_AGG_ON) { 1347c20e08b0SJohannes Berg ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 1348c20e08b0SJohannes Berg if (ret) 1349c20e08b0SJohannes Berg goto out_err; 1350c20e08b0SJohannes Berg } 1351c20e08b0SJohannes Berg } else { 1352c20e08b0SJohannes Berg /* Redirect queue, if needed */ 1353cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, ac, ssn, 1354cfbc6c4cSSara Sharon wdg_timeout, false, 1355cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 1356c20e08b0SJohannes Berg if (ret) 1357c20e08b0SJohannes Berg goto out_err; 1358c20e08b0SJohannes Berg } 1359c20e08b0SJohannes Berg 1360c20e08b0SJohannes Berg return 0; 1361c20e08b0SJohannes Berg 1362c20e08b0SJohannes Berg out_err: 1363cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, sta, queue, tid, 0); 1364c20e08b0SJohannes Berg 1365c20e08b0SJohannes Berg return ret; 1366c20e08b0SJohannes Berg } 1367c20e08b0SJohannes Berg 136824afba76SLiad Kaufman void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk) 136924afba76SLiad Kaufman { 137024afba76SLiad Kaufman struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, 137124afba76SLiad Kaufman add_stream_wk); 137224afba76SLiad Kaufman 137324afba76SLiad Kaufman mutex_lock(&mvm->mutex); 137424afba76SLiad Kaufman 1375724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 13769f9af3d7SLiad Kaufman 1377cfbc6c4cSSara Sharon while (!list_empty(&mvm->add_stream_txqs)) { 1378cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq; 1379cfbc6c4cSSara Sharon struct ieee80211_txq *txq; 1380cfbc6c4cSSara Sharon u8 tid; 138124afba76SLiad Kaufman 1382cfbc6c4cSSara Sharon mvmtxq = list_first_entry(&mvm->add_stream_txqs, 1383cfbc6c4cSSara Sharon struct iwl_mvm_txq, list); 138424afba76SLiad Kaufman 1385cfbc6c4cSSara Sharon txq = container_of((void *)mvmtxq, struct ieee80211_txq, 1386cfbc6c4cSSara Sharon drv_priv); 1387cfbc6c4cSSara Sharon tid = txq->tid; 1388cfbc6c4cSSara Sharon if (tid == IEEE80211_NUM_TIDS) 1389cfbc6c4cSSara Sharon tid = IWL_MAX_TID_COUNT; 1390cfbc6c4cSSara Sharon 13913d1d87abSJohannes Berg /* 13923d1d87abSJohannes Berg * We can't really do much here, but if this fails we can't 13933d1d87abSJohannes Berg * transmit anyway - so just don't transmit the frame etc. 13943d1d87abSJohannes Berg * and let them back up ... we've tried our best to allocate 13953d1d87abSJohannes Berg * a queue in the function itself. 13963d1d87abSJohannes Berg */ 13973d1d87abSJohannes Berg if (iwl_mvm_sta_alloc_queue(mvm, txq->sta, txq->ac, tid)) { 13983d1d87abSJohannes Berg list_del_init(&mvmtxq->list); 13993d1d87abSJohannes Berg continue; 14003d1d87abSJohannes Berg } 14013d1d87abSJohannes Berg 1402cfbc6c4cSSara Sharon list_del_init(&mvmtxq->list); 1403f5ae2f93SJohannes Berg local_bh_disable(); 1404cfbc6c4cSSara Sharon iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1405f5ae2f93SJohannes Berg local_bh_enable(); 140624afba76SLiad Kaufman } 140724afba76SLiad Kaufman 140824afba76SLiad Kaufman mutex_unlock(&mvm->mutex); 140924afba76SLiad Kaufman } 141024afba76SLiad Kaufman 141124afba76SLiad Kaufman static int iwl_mvm_reserve_sta_stream(struct iwl_mvm *mvm, 1412d5216a28SLiad Kaufman struct ieee80211_sta *sta, 1413d5216a28SLiad Kaufman enum nl80211_iftype vif_type) 141424afba76SLiad Kaufman { 141524afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 141624afba76SLiad Kaufman int queue; 141724afba76SLiad Kaufman 1418396952eeSSara Sharon /* queue reserving is disabled on new TX path */ 1419396952eeSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1420396952eeSSara Sharon return 0; 1421396952eeSSara Sharon 1422724fe771SJohannes Berg /* run the general cleanup/unsharing of queues */ 1423724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 14249794c64fSLiad Kaufman 142524afba76SLiad Kaufman /* Make sure we have free resources for this STA */ 1426d5216a28SLiad Kaufman if (vif_type == NL80211_IFTYPE_STATION && !sta->tdls && 14271c14089eSJohannes Berg !mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].tid_bitmap && 1428cf961e16SLiad Kaufman (mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].status == 1429cf961e16SLiad Kaufman IWL_MVM_QUEUE_FREE)) 1430d5216a28SLiad Kaufman queue = IWL_MVM_DQA_BSS_CLIENT_QUEUE; 1431d5216a28SLiad Kaufman else 14329794c64fSLiad Kaufman queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 14339794c64fSLiad Kaufman IWL_MVM_DQA_MIN_DATA_QUEUE, 143424afba76SLiad Kaufman IWL_MVM_DQA_MAX_DATA_QUEUE); 143524afba76SLiad Kaufman if (queue < 0) { 1436724fe771SJohannes Berg /* try again - this time kick out a queue if needed */ 1437724fe771SJohannes Berg queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id); 1438724fe771SJohannes Berg if (queue < 0) { 143924afba76SLiad Kaufman IWL_ERR(mvm, "No available queues for new station\n"); 144024afba76SLiad Kaufman return -ENOSPC; 1441724fe771SJohannes Berg } 144224afba76SLiad Kaufman } 1443cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_RESERVED; 144424afba76SLiad Kaufman 144524afba76SLiad Kaufman mvmsta->reserved_queue = queue; 144624afba76SLiad Kaufman 144724afba76SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Reserving data queue #%d for sta_id %d\n", 144824afba76SLiad Kaufman queue, mvmsta->sta_id); 144924afba76SLiad Kaufman 145024afba76SLiad Kaufman return 0; 145124afba76SLiad Kaufman } 145224afba76SLiad Kaufman 14538d98ae6eSLiad Kaufman /* 14548d98ae6eSLiad Kaufman * In DQA mode, after a HW restart the queues should be allocated as before, in 14558d98ae6eSLiad Kaufman * order to avoid race conditions when there are shared queues. This function 14568d98ae6eSLiad Kaufman * does the re-mapping and queue allocation. 14578d98ae6eSLiad Kaufman * 14588d98ae6eSLiad Kaufman * Note that re-enabling aggregations isn't done in this function. 14598d98ae6eSLiad Kaufman */ 14608d98ae6eSLiad Kaufman static void iwl_mvm_realloc_queues_after_restart(struct iwl_mvm *mvm, 1461cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 14628d98ae6eSLiad Kaufman { 1463cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1464cfbc6c4cSSara Sharon unsigned int wdg = 14658d98ae6eSLiad Kaufman iwl_mvm_get_wd_timeout(mvm, mvm_sta->vif, false, false); 14668d98ae6eSLiad Kaufman int i; 14678d98ae6eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 14688d98ae6eSLiad Kaufman .sta_id = mvm_sta->sta_id, 14698d98ae6eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 14708d98ae6eSLiad Kaufman }; 14718d98ae6eSLiad Kaufman 147203c902bfSJohannes Berg /* Make sure reserved queue is still marked as such (if allocated) */ 147303c902bfSJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) 14748d98ae6eSLiad Kaufman mvm->queue_info[mvm_sta->reserved_queue].status = 14758d98ae6eSLiad Kaufman IWL_MVM_QUEUE_RESERVED; 14768d98ae6eSLiad Kaufman 14778d98ae6eSLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 14788d98ae6eSLiad Kaufman struct iwl_mvm_tid_data *tid_data = &mvm_sta->tid_data[i]; 14798d98ae6eSLiad Kaufman int txq_id = tid_data->txq_id; 14808d98ae6eSLiad Kaufman int ac; 14818d98ae6eSLiad Kaufman 14826862fceeSSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 14838d98ae6eSLiad Kaufman continue; 14848d98ae6eSLiad Kaufman 14858d98ae6eSLiad Kaufman ac = tid_to_mac80211_ac[i]; 14868d98ae6eSLiad Kaufman 1487310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1488310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 1489310181ecSSara Sharon "Re-mapping sta %d tid %d\n", 1490310181ecSSara Sharon mvm_sta->sta_id, i); 1491cfbc6c4cSSara Sharon txq_id = iwl_mvm_tvqm_enable_txq(mvm, mvm_sta->sta_id, 1492cfbc6c4cSSara Sharon i, wdg); 149391cf5dedSJohannes Berg /* 149491cf5dedSJohannes Berg * on failures, just set it to IWL_MVM_INVALID_QUEUE 149591cf5dedSJohannes Berg * to try again later, we have no other good way of 149691cf5dedSJohannes Berg * failing here 149791cf5dedSJohannes Berg */ 149891cf5dedSJohannes Berg if (txq_id < 0) 149991cf5dedSJohannes Berg txq_id = IWL_MVM_INVALID_QUEUE; 1500310181ecSSara Sharon tid_data->txq_id = txq_id; 15015d39051aSLiad Kaufman 15025d39051aSLiad Kaufman /* 15035d39051aSLiad Kaufman * Since we don't set the seq number after reset, and HW 15045d39051aSLiad Kaufman * sets it now, FW reset will cause the seq num to start 15055d39051aSLiad Kaufman * at 0 again, so driver will need to update it 15065d39051aSLiad Kaufman * internally as well, so it keeps in sync with real val 15075d39051aSLiad Kaufman */ 15085d39051aSLiad Kaufman tid_data->seq_number = 0; 1509310181ecSSara Sharon } else { 1510310181ecSSara Sharon u16 seq = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 1511310181ecSSara Sharon 15128d98ae6eSLiad Kaufman cfg.tid = i; 1513cf6c6ea3SEmmanuel Grumbach cfg.fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac); 15148d98ae6eSLiad Kaufman cfg.aggregate = (txq_id >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1515310181ecSSara Sharon txq_id == 1516310181ecSSara Sharon IWL_MVM_DQA_BSS_CLIENT_QUEUE); 15178d98ae6eSLiad Kaufman 15188d98ae6eSLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 15198d98ae6eSLiad Kaufman "Re-mapping sta %d tid %d to queue %d\n", 15208d98ae6eSLiad Kaufman mvm_sta->sta_id, i, txq_id); 15218d98ae6eSLiad Kaufman 1522cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, txq_id, seq, &cfg, wdg); 15238d98ae6eSLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_READY; 15248d98ae6eSLiad Kaufman } 152534e10860SSara Sharon } 15268d98ae6eSLiad Kaufman } 15278d98ae6eSLiad Kaufman 1528732d06e9SShaul Triebitz static int iwl_mvm_add_int_sta_common(struct iwl_mvm *mvm, 1529732d06e9SShaul Triebitz struct iwl_mvm_int_sta *sta, 1530732d06e9SShaul Triebitz const u8 *addr, 1531732d06e9SShaul Triebitz u16 mac_id, u16 color) 1532732d06e9SShaul Triebitz { 1533732d06e9SShaul Triebitz struct iwl_mvm_add_sta_cmd cmd; 1534732d06e9SShaul Triebitz int ret; 15353f497de9SLuca Coelho u32 status = ADD_STA_SUCCESS; 1536732d06e9SShaul Triebitz 1537732d06e9SShaul Triebitz lockdep_assert_held(&mvm->mutex); 1538732d06e9SShaul Triebitz 1539732d06e9SShaul Triebitz memset(&cmd, 0, sizeof(cmd)); 1540732d06e9SShaul Triebitz cmd.sta_id = sta->sta_id; 15412c2c3647SNathan Errera 15422c2c3647SNathan Errera if (iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP, ADD_STA, 15432c2c3647SNathan Errera 0) >= 12 && 15442c2c3647SNathan Errera sta->type == IWL_STA_AUX_ACTIVITY) 15452c2c3647SNathan Errera cmd.mac_id_n_color = cpu_to_le32(mac_id); 15462c2c3647SNathan Errera else 1547732d06e9SShaul Triebitz cmd.mac_id_n_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mac_id, 1548732d06e9SShaul Triebitz color)); 15492c2c3647SNathan Errera 1550732d06e9SShaul Triebitz if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 1551732d06e9SShaul Triebitz cmd.station_type = sta->type; 1552732d06e9SShaul Triebitz 1553732d06e9SShaul Triebitz if (!iwl_mvm_has_new_tx_api(mvm)) 1554732d06e9SShaul Triebitz cmd.tfd_queue_msk = cpu_to_le32(sta->tfd_queue_msk); 1555732d06e9SShaul Triebitz cmd.tid_disable_tx = cpu_to_le16(0xffff); 1556732d06e9SShaul Triebitz 1557732d06e9SShaul Triebitz if (addr) 1558732d06e9SShaul Triebitz memcpy(cmd.addr, addr, ETH_ALEN); 1559732d06e9SShaul Triebitz 1560732d06e9SShaul Triebitz ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1561732d06e9SShaul Triebitz iwl_mvm_add_sta_cmd_size(mvm), 1562732d06e9SShaul Triebitz &cmd, &status); 1563732d06e9SShaul Triebitz if (ret) 1564732d06e9SShaul Triebitz return ret; 1565732d06e9SShaul Triebitz 1566732d06e9SShaul Triebitz switch (status & IWL_ADD_STA_STATUS_MASK) { 1567732d06e9SShaul Triebitz case ADD_STA_SUCCESS: 1568732d06e9SShaul Triebitz IWL_DEBUG_INFO(mvm, "Internal station added.\n"); 1569732d06e9SShaul Triebitz return 0; 1570732d06e9SShaul Triebitz default: 1571732d06e9SShaul Triebitz ret = -EIO; 1572732d06e9SShaul Triebitz IWL_ERR(mvm, "Add internal station failed, status=0x%x\n", 1573732d06e9SShaul Triebitz status); 1574732d06e9SShaul Triebitz break; 1575732d06e9SShaul Triebitz } 1576732d06e9SShaul Triebitz return ret; 1577732d06e9SShaul Triebitz } 1578732d06e9SShaul Triebitz 1579e705c121SKalle Valo int iwl_mvm_add_sta(struct iwl_mvm *mvm, 1580e705c121SKalle Valo struct ieee80211_vif *vif, 1581e705c121SKalle Valo struct ieee80211_sta *sta) 1582e705c121SKalle Valo { 1583e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1584e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1585a571f5f6SSara Sharon struct iwl_mvm_rxq_dup_data *dup_data; 1586e705c121SKalle Valo int i, ret, sta_id; 1587732d06e9SShaul Triebitz bool sta_update = false; 1588732d06e9SShaul Triebitz unsigned int sta_flags = 0; 1589e705c121SKalle Valo 1590e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1591e705c121SKalle Valo 1592e705c121SKalle Valo if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1593e705c121SKalle Valo sta_id = iwl_mvm_find_free_sta_id(mvm, 1594e705c121SKalle Valo ieee80211_vif_type_p2p(vif)); 1595e705c121SKalle Valo else 1596e705c121SKalle Valo sta_id = mvm_sta->sta_id; 1597e705c121SKalle Valo 15980ae98812SSara Sharon if (sta_id == IWL_MVM_INVALID_STA) 1599e705c121SKalle Valo return -ENOSPC; 1600e705c121SKalle Valo 1601e705c121SKalle Valo spin_lock_init(&mvm_sta->lock); 1602e705c121SKalle Valo 1603c8f54701SJohannes Berg /* if this is a HW restart re-alloc existing queues */ 1604c8f54701SJohannes Berg if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1605732d06e9SShaul Triebitz struct iwl_mvm_int_sta tmp_sta = { 1606732d06e9SShaul Triebitz .sta_id = sta_id, 1607732d06e9SShaul Triebitz .type = mvm_sta->sta_type, 1608732d06e9SShaul Triebitz }; 1609732d06e9SShaul Triebitz 1610732d06e9SShaul Triebitz /* 1611732d06e9SShaul Triebitz * First add an empty station since allocating 1612732d06e9SShaul Triebitz * a queue requires a valid station 1613732d06e9SShaul Triebitz */ 1614732d06e9SShaul Triebitz ret = iwl_mvm_add_int_sta_common(mvm, &tmp_sta, sta->addr, 1615732d06e9SShaul Triebitz mvmvif->id, mvmvif->color); 1616732d06e9SShaul Triebitz if (ret) 1617732d06e9SShaul Triebitz goto err; 1618732d06e9SShaul Triebitz 1619cfbc6c4cSSara Sharon iwl_mvm_realloc_queues_after_restart(mvm, sta); 1620732d06e9SShaul Triebitz sta_update = true; 1621732d06e9SShaul Triebitz sta_flags = iwl_mvm_has_new_tx_api(mvm) ? 0 : STA_MODIFY_QUEUES; 16228d98ae6eSLiad Kaufman goto update_fw; 16238d98ae6eSLiad Kaufman } 16248d98ae6eSLiad Kaufman 1625e705c121SKalle Valo mvm_sta->sta_id = sta_id; 1626e705c121SKalle Valo mvm_sta->mac_id_n_color = FW_CMD_ID_AND_COLOR(mvmvif->id, 1627e705c121SKalle Valo mvmvif->color); 1628e705c121SKalle Valo mvm_sta->vif = vif; 1629286ca8ebSLuca Coelho if (!mvm->trans->trans_cfg->gen2) 1630e705c121SKalle Valo mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_DEF; 1631a58bb468SLiad Kaufman else 1632a58bb468SLiad Kaufman mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF; 1633e705c121SKalle Valo mvm_sta->tx_protection = 0; 1634e705c121SKalle Valo mvm_sta->tt_tx_protection = false; 1635ced19f26SSara Sharon mvm_sta->sta_type = sta->tdls ? IWL_STA_TDLS_LINK : IWL_STA_LINK; 1636e705c121SKalle Valo 1637e705c121SKalle Valo /* HW restart, don't assume the memory has been zeroed */ 1638e705c121SKalle Valo mvm_sta->tid_disable_agg = 0xffff; /* No aggs at first */ 1639e705c121SKalle Valo mvm_sta->tfd_queue_msk = 0; 1640e705c121SKalle Valo 1641e705c121SKalle Valo /* for HW restart - reset everything but the sequence number */ 164224afba76SLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 1643e705c121SKalle Valo u16 seq = mvm_sta->tid_data[i].seq_number; 1644e705c121SKalle Valo memset(&mvm_sta->tid_data[i], 0, sizeof(mvm_sta->tid_data[i])); 1645e705c121SKalle Valo mvm_sta->tid_data[i].seq_number = seq; 164624afba76SLiad Kaufman 164724afba76SLiad Kaufman /* 164824afba76SLiad Kaufman * Mark all queues for this STA as unallocated and defer TX 164924afba76SLiad Kaufman * frames until the queue is allocated 165024afba76SLiad Kaufman */ 16516862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 1652e705c121SKalle Valo } 1653cfbc6c4cSSara Sharon 1654cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1655cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1656cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1657cfbc6c4cSSara Sharon 1658cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 1659cfbc6c4cSSara Sharon INIT_LIST_HEAD(&mvmtxq->list); 1660fba8248eSSara Sharon atomic_set(&mvmtxq->tx_request, 0); 1661cfbc6c4cSSara Sharon } 1662cfbc6c4cSSara Sharon 1663e705c121SKalle Valo mvm_sta->agg_tids = 0; 1664e705c121SKalle Valo 1665a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && 1666a571f5f6SSara Sharon !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 166792c4dca6SJohannes Berg int q; 166892c4dca6SJohannes Berg 1669a571f5f6SSara Sharon dup_data = kcalloc(mvm->trans->num_rx_queues, 167092c4dca6SJohannes Berg sizeof(*dup_data), GFP_KERNEL); 1671a571f5f6SSara Sharon if (!dup_data) 1672a571f5f6SSara Sharon return -ENOMEM; 167392c4dca6SJohannes Berg /* 167492c4dca6SJohannes Berg * Initialize all the last_seq values to 0xffff which can never 167592c4dca6SJohannes Berg * compare equal to the frame's seq_ctrl in the check in 167692c4dca6SJohannes Berg * iwl_mvm_is_dup() since the lower 4 bits are the fragment 167792c4dca6SJohannes Berg * number and fragmented packets don't reach that function. 167892c4dca6SJohannes Berg * 167992c4dca6SJohannes Berg * This thus allows receiving a packet with seqno 0 and the 168092c4dca6SJohannes Berg * retry bit set as the very first packet on a new TID. 168192c4dca6SJohannes Berg */ 168292c4dca6SJohannes Berg for (q = 0; q < mvm->trans->num_rx_queues; q++) 168392c4dca6SJohannes Berg memset(dup_data[q].last_seq, 0xff, 168492c4dca6SJohannes Berg sizeof(dup_data[q].last_seq)); 1685a571f5f6SSara Sharon mvm_sta->dup_data = dup_data; 1686a571f5f6SSara Sharon } 1687a571f5f6SSara Sharon 1688c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 1689d5216a28SLiad Kaufman ret = iwl_mvm_reserve_sta_stream(mvm, sta, 1690d5216a28SLiad Kaufman ieee80211_vif_type_p2p(vif)); 169124afba76SLiad Kaufman if (ret) 169224afba76SLiad Kaufman goto err; 169324afba76SLiad Kaufman } 169424afba76SLiad Kaufman 16959f66a397SGregory Greenman /* 16969f66a397SGregory Greenman * if rs is registered with mac80211, then "add station" will be handled 16979f66a397SGregory Greenman * via the corresponding ops, otherwise need to notify rate scaling here 16989f66a397SGregory Greenman */ 16994243edb4SEmmanuel Grumbach if (iwl_mvm_has_tlc_offload(mvm)) 17009f66a397SGregory Greenman iwl_mvm_rs_add_sta(mvm, mvm_sta); 17010f8084cdSMordechay Goodstein else 1702f5d88fa3SGregory Greenman spin_lock_init(&mvm_sta->lq_sta.rs_drv.pers.lock); 17039f66a397SGregory Greenman 17040dde2440SAvraham Stern iwl_mvm_toggle_tx_ant(mvm, &mvm_sta->tx_ant); 17050dde2440SAvraham Stern 17068d98ae6eSLiad Kaufman update_fw: 1707732d06e9SShaul Triebitz ret = iwl_mvm_sta_send_to_fw(mvm, sta, sta_update, sta_flags); 1708e705c121SKalle Valo if (ret) 1709e705c121SKalle Valo goto err; 1710e705c121SKalle Valo 1711e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) { 1712e705c121SKalle Valo if (!sta->tdls) { 17130ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id != IWL_MVM_INVALID_STA); 1714e705c121SKalle Valo mvmvif->ap_sta_id = sta_id; 1715e705c121SKalle Valo } else { 17160ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id == IWL_MVM_INVALID_STA); 1717e705c121SKalle Valo } 1718e705c121SKalle Valo } 1719e705c121SKalle Valo 1720e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], sta); 1721e705c121SKalle Valo 1722e705c121SKalle Valo return 0; 1723e705c121SKalle Valo 1724e705c121SKalle Valo err: 1725e705c121SKalle Valo return ret; 1726e705c121SKalle Valo } 1727e705c121SKalle Valo 1728e705c121SKalle Valo int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, 1729e705c121SKalle Valo bool drain) 1730e705c121SKalle Valo { 1731e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 1732e705c121SKalle Valo int ret; 1733e705c121SKalle Valo u32 status; 1734e705c121SKalle Valo 1735e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1736e705c121SKalle Valo 1737e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 1738e705c121SKalle Valo cmd.sta_id = mvmsta->sta_id; 1739e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 1740e705c121SKalle Valo cmd.station_flags = drain ? cpu_to_le32(STA_FLG_DRAIN_FLOW) : 0; 1741e705c121SKalle Valo cmd.station_flags_msk = cpu_to_le32(STA_FLG_DRAIN_FLOW); 1742e705c121SKalle Valo 1743e705c121SKalle Valo status = ADD_STA_SUCCESS; 1744854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1745854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 1746e705c121SKalle Valo &cmd, &status); 1747e705c121SKalle Valo if (ret) 1748e705c121SKalle Valo return ret; 1749e705c121SKalle Valo 1750837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 1751e705c121SKalle Valo case ADD_STA_SUCCESS: 1752e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "Frames for staid %d will drained in fw\n", 1753e705c121SKalle Valo mvmsta->sta_id); 1754e705c121SKalle Valo break; 1755e705c121SKalle Valo default: 1756e705c121SKalle Valo ret = -EIO; 1757e705c121SKalle Valo IWL_ERR(mvm, "Couldn't drain frames for staid %d\n", 1758e705c121SKalle Valo mvmsta->sta_id); 1759e705c121SKalle Valo break; 1760e705c121SKalle Valo } 1761e705c121SKalle Valo 1762e705c121SKalle Valo return ret; 1763e705c121SKalle Valo } 1764e705c121SKalle Valo 1765e705c121SKalle Valo /* 1766e705c121SKalle Valo * Remove a station from the FW table. Before sending the command to remove 1767e705c121SKalle Valo * the station validate that the station is indeed known to the driver (sanity 1768e705c121SKalle Valo * only). 1769e705c121SKalle Valo */ 1770e705c121SKalle Valo static int iwl_mvm_rm_sta_common(struct iwl_mvm *mvm, u8 sta_id) 1771e705c121SKalle Valo { 1772e705c121SKalle Valo struct ieee80211_sta *sta; 1773e705c121SKalle Valo struct iwl_mvm_rm_sta_cmd rm_sta_cmd = { 1774e705c121SKalle Valo .sta_id = sta_id, 1775e705c121SKalle Valo }; 1776e705c121SKalle Valo int ret; 1777e705c121SKalle Valo 1778e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 1779e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1780e705c121SKalle Valo 1781e705c121SKalle Valo /* Note: internal stations are marked as error values */ 1782e705c121SKalle Valo if (!sta) { 1783e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 1784e705c121SKalle Valo return -EINVAL; 1785e705c121SKalle Valo } 1786e705c121SKalle Valo 1787e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, REMOVE_STA, 0, 1788e705c121SKalle Valo sizeof(rm_sta_cmd), &rm_sta_cmd); 1789e705c121SKalle Valo if (ret) { 1790e705c121SKalle Valo IWL_ERR(mvm, "Failed to remove station. Id=%d\n", sta_id); 1791e705c121SKalle Valo return ret; 1792e705c121SKalle Valo } 1793e705c121SKalle Valo 1794e705c121SKalle Valo return 0; 1795e705c121SKalle Valo } 1796e705c121SKalle Valo 179724afba76SLiad Kaufman static void iwl_mvm_disable_sta_queues(struct iwl_mvm *mvm, 179824afba76SLiad Kaufman struct ieee80211_vif *vif, 1799cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 180024afba76SLiad Kaufman { 1801cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 180224afba76SLiad Kaufman int i; 180324afba76SLiad Kaufman 180424afba76SLiad Kaufman lockdep_assert_held(&mvm->mutex); 180524afba76SLiad Kaufman 180624afba76SLiad Kaufman for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 18076862fceeSSara Sharon if (mvm_sta->tid_data[i].txq_id == IWL_MVM_INVALID_QUEUE) 180824afba76SLiad Kaufman continue; 180924afba76SLiad Kaufman 1810cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, sta, mvm_sta->tid_data[i].txq_id, i, 1811cfbc6c4cSSara Sharon 0); 18126862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 181324afba76SLiad Kaufman } 1814cfbc6c4cSSara Sharon 1815cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1816cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1817cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1818cfbc6c4cSSara Sharon 1819cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 1820cfbc6c4cSSara Sharon } 182124afba76SLiad Kaufman } 182224afba76SLiad Kaufman 1823d6d517b7SSara Sharon int iwl_mvm_wait_sta_queues_empty(struct iwl_mvm *mvm, 1824d6d517b7SSara Sharon struct iwl_mvm_sta *mvm_sta) 1825d6d517b7SSara Sharon { 1826bec9522aSSharon Dvir int i; 1827d6d517b7SSara Sharon 1828d6d517b7SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 1829d6d517b7SSara Sharon u16 txq_id; 1830bec9522aSSharon Dvir int ret; 1831d6d517b7SSara Sharon 1832d6d517b7SSara Sharon spin_lock_bh(&mvm_sta->lock); 1833d6d517b7SSara Sharon txq_id = mvm_sta->tid_data[i].txq_id; 1834d6d517b7SSara Sharon spin_unlock_bh(&mvm_sta->lock); 1835d6d517b7SSara Sharon 1836d6d517b7SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 1837d6d517b7SSara Sharon continue; 1838d6d517b7SSara Sharon 1839d6d517b7SSara Sharon ret = iwl_trans_wait_txq_empty(mvm->trans, txq_id); 1840d6d517b7SSara Sharon if (ret) 1841bec9522aSSharon Dvir return ret; 1842d6d517b7SSara Sharon } 1843d6d517b7SSara Sharon 1844bec9522aSSharon Dvir return 0; 1845d6d517b7SSara Sharon } 1846d6d517b7SSara Sharon 1847e705c121SKalle Valo int iwl_mvm_rm_sta(struct iwl_mvm *mvm, 1848e705c121SKalle Valo struct ieee80211_vif *vif, 1849e705c121SKalle Valo struct ieee80211_sta *sta) 1850e705c121SKalle Valo { 1851e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1852e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 185394c3e614SSara Sharon u8 sta_id = mvm_sta->sta_id; 1854e705c121SKalle Valo int ret; 1855e705c121SKalle Valo 1856e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1857e705c121SKalle Valo 1858a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm)) 1859a571f5f6SSara Sharon kfree(mvm_sta->dup_data); 1860a571f5f6SSara Sharon 1861e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, true); 1862e705c121SKalle Valo if (ret) 1863e705c121SKalle Valo return ret; 1864c8f54701SJohannes Berg 1865e705c121SKalle Valo /* flush its queues here since we are freeing mvm_sta */ 1866f9084775SNathan Errera ret = iwl_mvm_flush_sta(mvm, mvm_sta, false); 1867e705c121SKalle Valo if (ret) 1868e705c121SKalle Valo return ret; 1869d6d517b7SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1870d6d517b7SSara Sharon ret = iwl_mvm_wait_sta_queues_empty(mvm, mvm_sta); 1871d6d517b7SSara Sharon } else { 1872d6d517b7SSara Sharon u32 q_mask = mvm_sta->tfd_queue_msk; 1873d6d517b7SSara Sharon 1874a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 1875d6d517b7SSara Sharon q_mask); 1876d6d517b7SSara Sharon } 1877e705c121SKalle Valo if (ret) 1878e705c121SKalle Valo return ret; 1879c8f54701SJohannes Berg 1880e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, false); 1881e705c121SKalle Valo 1882cfbc6c4cSSara Sharon iwl_mvm_disable_sta_queues(mvm, vif, sta); 188356214749SLiad Kaufman 188456214749SLiad Kaufman /* If there is a TXQ still marked as reserved - free it */ 1885c8f54701SJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) { 1886a0315deaSLiad Kaufman u8 reserved_txq = mvm_sta->reserved_queue; 1887a0315deaSLiad Kaufman enum iwl_mvm_queue_status *status; 1888a0315deaSLiad Kaufman 1889a0315deaSLiad Kaufman /* 1890a0315deaSLiad Kaufman * If no traffic has gone through the reserved TXQ - it 1891a0315deaSLiad Kaufman * is still marked as IWL_MVM_QUEUE_RESERVED, and 1892a0315deaSLiad Kaufman * should be manually marked as free again 1893a0315deaSLiad Kaufman */ 1894a0315deaSLiad Kaufman status = &mvm->queue_info[reserved_txq].status; 1895a0315deaSLiad Kaufman if (WARN((*status != IWL_MVM_QUEUE_RESERVED) && 1896a0315deaSLiad Kaufman (*status != IWL_MVM_QUEUE_FREE), 1897a0315deaSLiad Kaufman "sta_id %d reserved txq %d status %d", 1898f3f240f9SJohannes Berg sta_id, reserved_txq, *status)) 1899a0315deaSLiad Kaufman return -EINVAL; 1900a0315deaSLiad Kaufman 1901a0315deaSLiad Kaufman *status = IWL_MVM_QUEUE_FREE; 1902a0315deaSLiad Kaufman } 1903a0315deaSLiad Kaufman 1904e3118ad7SLiad Kaufman if (vif->type == NL80211_IFTYPE_STATION && 190594c3e614SSara Sharon mvmvif->ap_sta_id == sta_id) { 1906e3118ad7SLiad Kaufman /* if associated - we can't remove the AP STA now */ 1907e705c121SKalle Valo if (vif->bss_conf.assoc) 1908e705c121SKalle Valo return ret; 1909e705c121SKalle Valo 1910e705c121SKalle Valo /* unassoc - go ahead - remove the AP STA now */ 19110ae98812SSara Sharon mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1912e705c121SKalle Valo } 1913e705c121SKalle Valo 1914e705c121SKalle Valo /* 1915e705c121SKalle Valo * This shouldn't happen - the TDLS channel switch should be canceled 1916e705c121SKalle Valo * before the STA is removed. 1917e705c121SKalle Valo */ 191894c3e614SSara Sharon if (WARN_ON_ONCE(mvm->tdls_cs.peer.sta_id == sta_id)) { 19190ae98812SSara Sharon mvm->tdls_cs.peer.sta_id = IWL_MVM_INVALID_STA; 1920e705c121SKalle Valo cancel_delayed_work(&mvm->tdls_cs.dwork); 1921e705c121SKalle Valo } 1922e705c121SKalle Valo 1923e705c121SKalle Valo /* 1924e705c121SKalle Valo * Make sure that the tx response code sees the station as -EBUSY and 1925e705c121SKalle Valo * calls the drain worker. 1926e705c121SKalle Valo */ 1927e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 1928e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 1929e705c121SKalle Valo 1930e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvm_sta->sta_id); 1931e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[mvm_sta->sta_id], NULL); 1932e705c121SKalle Valo 1933e705c121SKalle Valo return ret; 1934e705c121SKalle Valo } 1935e705c121SKalle Valo 1936e705c121SKalle Valo int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm, 1937e705c121SKalle Valo struct ieee80211_vif *vif, 1938e705c121SKalle Valo u8 sta_id) 1939e705c121SKalle Valo { 1940e705c121SKalle Valo int ret = iwl_mvm_rm_sta_common(mvm, sta_id); 1941e705c121SKalle Valo 1942e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1943e705c121SKalle Valo 1944e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], NULL); 1945e705c121SKalle Valo return ret; 1946e705c121SKalle Valo } 1947e705c121SKalle Valo 19480e39eb03SChaya Rachel Ivgi int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, 1949e705c121SKalle Valo struct iwl_mvm_int_sta *sta, 1950ced19f26SSara Sharon u32 qmask, enum nl80211_iftype iftype, 1951ced19f26SSara Sharon enum iwl_sta_type type) 1952e705c121SKalle Valo { 1953df65c8d1SAvraham Stern if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1954df65c8d1SAvraham Stern sta->sta_id == IWL_MVM_INVALID_STA) { 1955e705c121SKalle Valo sta->sta_id = iwl_mvm_find_free_sta_id(mvm, iftype); 19560ae98812SSara Sharon if (WARN_ON_ONCE(sta->sta_id == IWL_MVM_INVALID_STA)) 1957e705c121SKalle Valo return -ENOSPC; 1958e705c121SKalle Valo } 1959e705c121SKalle Valo 1960e705c121SKalle Valo sta->tfd_queue_msk = qmask; 1961ced19f26SSara Sharon sta->type = type; 1962e705c121SKalle Valo 1963e705c121SKalle Valo /* put a non-NULL value so iterating over the stations won't stop */ 1964e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta->sta_id], ERR_PTR(-EINVAL)); 1965e705c121SKalle Valo return 0; 1966e705c121SKalle Valo } 1967e705c121SKalle Valo 196826d6c16bSSara Sharon void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta) 1969e705c121SKalle Valo { 1970e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta->sta_id], NULL); 1971e705c121SKalle Valo memset(sta, 0, sizeof(struct iwl_mvm_int_sta)); 19720ae98812SSara Sharon sta->sta_id = IWL_MVM_INVALID_STA; 1973e705c121SKalle Valo } 1974e705c121SKalle Valo 197591cf5dedSJohannes Berg static void iwl_mvm_enable_aux_snif_queue(struct iwl_mvm *mvm, u16 queue, 1976b13f43a4SEmmanuel Grumbach u8 sta_id, u8 fifo) 1977e705c121SKalle Valo { 19789617040eSEmmanuel Grumbach unsigned int wdg_timeout = 19799617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout; 198028d0793eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 1981b13f43a4SEmmanuel Grumbach .fifo = fifo, 1982b13f43a4SEmmanuel Grumbach .sta_id = sta_id, 198328d0793eSLiad Kaufman .tid = IWL_MAX_TID_COUNT, 198428d0793eSLiad Kaufman .aggregate = false, 198528d0793eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 198628d0793eSLiad Kaufman }; 198728d0793eSLiad Kaufman 198891cf5dedSJohannes Berg WARN_ON(iwl_mvm_has_new_tx_api(mvm)); 198991cf5dedSJohannes Berg 199091cf5dedSJohannes Berg iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 199128d0793eSLiad Kaufman } 199291cf5dedSJohannes Berg 199391cf5dedSJohannes Berg static int iwl_mvm_enable_aux_snif_queue_tvqm(struct iwl_mvm *mvm, u8 sta_id) 199491cf5dedSJohannes Berg { 19959617040eSEmmanuel Grumbach unsigned int wdg_timeout = 19969617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout; 199791cf5dedSJohannes Berg 199891cf5dedSJohannes Berg WARN_ON(!iwl_mvm_has_new_tx_api(mvm)); 199991cf5dedSJohannes Berg 200091cf5dedSJohannes Berg return iwl_mvm_tvqm_enable_txq(mvm, sta_id, IWL_MAX_TID_COUNT, 200191cf5dedSJohannes Berg wdg_timeout); 200291cf5dedSJohannes Berg } 200391cf5dedSJohannes Berg 200491cf5dedSJohannes Berg static int iwl_mvm_add_int_sta_with_queue(struct iwl_mvm *mvm, int macidx, 2005be82ecd3SAvraham Stern int maccolor, u8 *addr, 200691cf5dedSJohannes Berg struct iwl_mvm_int_sta *sta, 200791cf5dedSJohannes Berg u16 *queue, int fifo) 200891cf5dedSJohannes Berg { 200991cf5dedSJohannes Berg int ret; 201091cf5dedSJohannes Berg 201191cf5dedSJohannes Berg /* Map queue to fifo - needs to happen before adding station */ 201291cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) 201391cf5dedSJohannes Berg iwl_mvm_enable_aux_snif_queue(mvm, *queue, sta->sta_id, fifo); 201491cf5dedSJohannes Berg 2015be82ecd3SAvraham Stern ret = iwl_mvm_add_int_sta_common(mvm, sta, addr, macidx, maccolor); 201691cf5dedSJohannes Berg if (ret) { 201791cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) 201891cf5dedSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, *queue, 201991cf5dedSJohannes Berg IWL_MAX_TID_COUNT, 0); 202091cf5dedSJohannes Berg return ret; 202191cf5dedSJohannes Berg } 202291cf5dedSJohannes Berg 202391cf5dedSJohannes Berg /* 202491cf5dedSJohannes Berg * For 22000 firmware and on we cannot add queue to a station unknown 202591cf5dedSJohannes Berg * to firmware so enable queue here - after the station was added 202691cf5dedSJohannes Berg */ 202791cf5dedSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) { 202891cf5dedSJohannes Berg int txq; 202991cf5dedSJohannes Berg 203091cf5dedSJohannes Berg txq = iwl_mvm_enable_aux_snif_queue_tvqm(mvm, sta->sta_id); 203191cf5dedSJohannes Berg if (txq < 0) { 203291cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, sta->sta_id); 203391cf5dedSJohannes Berg return txq; 203491cf5dedSJohannes Berg } 203591cf5dedSJohannes Berg 203691cf5dedSJohannes Berg *queue = txq; 203791cf5dedSJohannes Berg } 203891cf5dedSJohannes Berg 203991cf5dedSJohannes Berg return 0; 2040c5a719eeSSara Sharon } 2041c5a719eeSSara Sharon 20422c2c3647SNathan Errera int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm, u32 lmac_id) 2043c5a719eeSSara Sharon { 2044c5a719eeSSara Sharon int ret; 2045c5a719eeSSara Sharon 2046c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2047c5a719eeSSara Sharon 2048c5a719eeSSara Sharon /* Allocate aux station and assign to it the aux queue */ 2049c5a719eeSSara Sharon ret = iwl_mvm_allocate_int_sta(mvm, &mvm->aux_sta, BIT(mvm->aux_queue), 2050ced19f26SSara Sharon NL80211_IFTYPE_UNSPECIFIED, 2051ced19f26SSara Sharon IWL_STA_AUX_ACTIVITY); 2052c5a719eeSSara Sharon if (ret) 2053c5a719eeSSara Sharon return ret; 2054c5a719eeSSara Sharon 20552c2c3647SNathan Errera /* 20562c2c3647SNathan Errera * In CDB NICs we need to specify which lmac to use for aux activity 20572c2c3647SNathan Errera * using the mac_id argument place to send lmac_id to the function 20582c2c3647SNathan Errera */ 20592c2c3647SNathan Errera ret = iwl_mvm_add_int_sta_with_queue(mvm, lmac_id, 0, NULL, 206091cf5dedSJohannes Berg &mvm->aux_sta, &mvm->aux_queue, 2061b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_MCAST); 2062c5a719eeSSara Sharon if (ret) { 2063e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2064e705c121SKalle Valo return ret; 2065e705c121SKalle Valo } 2066e705c121SKalle Valo 2067c5a719eeSSara Sharon return 0; 2068c5a719eeSSara Sharon } 2069c5a719eeSSara Sharon 20700e39eb03SChaya Rachel Ivgi int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 20710e39eb03SChaya Rachel Ivgi { 20720e39eb03SChaya Rachel Ivgi struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 20730e39eb03SChaya Rachel Ivgi 20740e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 2075b13f43a4SEmmanuel Grumbach 207691cf5dedSJohannes Berg return iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id, mvmvif->color, 2077be82ecd3SAvraham Stern NULL, &mvm->snif_sta, 2078be82ecd3SAvraham Stern &mvm->snif_queue, 2079b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_BE); 20800e39eb03SChaya Rachel Ivgi } 20810e39eb03SChaya Rachel Ivgi 20820e39eb03SChaya Rachel Ivgi int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 20830e39eb03SChaya Rachel Ivgi { 20840e39eb03SChaya Rachel Ivgi int ret; 20850e39eb03SChaya Rachel Ivgi 20860e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 20870e39eb03SChaya Rachel Ivgi 2088cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, NULL, mvm->snif_queue, IWL_MAX_TID_COUNT, 0); 20890e39eb03SChaya Rachel Ivgi ret = iwl_mvm_rm_sta_common(mvm, mvm->snif_sta.sta_id); 20900e39eb03SChaya Rachel Ivgi if (ret) 20910e39eb03SChaya Rachel Ivgi IWL_WARN(mvm, "Failed sending remove station\n"); 20920e39eb03SChaya Rachel Ivgi 20930e39eb03SChaya Rachel Ivgi return ret; 20940e39eb03SChaya Rachel Ivgi } 20950e39eb03SChaya Rachel Ivgi 2096f327236dSSharon int iwl_mvm_rm_aux_sta(struct iwl_mvm *mvm) 2097f327236dSSharon { 2098f327236dSSharon int ret; 2099f327236dSSharon 2100f327236dSSharon lockdep_assert_held(&mvm->mutex); 2101f327236dSSharon 2102f327236dSSharon iwl_mvm_disable_txq(mvm, NULL, mvm->aux_queue, IWL_MAX_TID_COUNT, 0); 2103f327236dSSharon ret = iwl_mvm_rm_sta_common(mvm, mvm->aux_sta.sta_id); 2104f327236dSSharon if (ret) 2105f327236dSSharon IWL_WARN(mvm, "Failed sending remove station\n"); 2106f327236dSSharon iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2107f327236dSSharon 2108f327236dSSharon return ret; 2109f327236dSSharon } 2110f327236dSSharon 21110e39eb03SChaya Rachel Ivgi void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm) 21120e39eb03SChaya Rachel Ivgi { 21130e39eb03SChaya Rachel Ivgi iwl_mvm_dealloc_int_sta(mvm, &mvm->snif_sta); 21140e39eb03SChaya Rachel Ivgi } 21150e39eb03SChaya Rachel Ivgi 2116e705c121SKalle Valo /* 2117e705c121SKalle Valo * Send the add station command for the vif's broadcast station. 2118e705c121SKalle Valo * Assumes that the station was already allocated. 2119e705c121SKalle Valo * 2120e705c121SKalle Valo * @mvm: the mvm component 2121e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2122e705c121SKalle Valo * @bsta: the broadcast station to add. 2123e705c121SKalle Valo */ 2124e705c121SKalle Valo int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2125e705c121SKalle Valo { 2126e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2127e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 2128e705c121SKalle Valo static const u8 _baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; 2129e705c121SKalle Valo const u8 *baddr = _baddr; 21307daa7624SJohannes Berg int queue; 2131df88c08dSLiad Kaufman int ret; 2132c5a719eeSSara Sharon unsigned int wdg_timeout = 2133c5a719eeSSara Sharon iwl_mvm_get_wd_timeout(mvm, vif, false, false); 2134de24f638SLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 2135de24f638SLiad Kaufman .fifo = IWL_MVM_TX_FIFO_VO, 2136de24f638SLiad Kaufman .sta_id = mvmvif->bcast_sta.sta_id, 2137de24f638SLiad Kaufman .tid = IWL_MAX_TID_COUNT, 2138de24f638SLiad Kaufman .aggregate = false, 2139de24f638SLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 2140de24f638SLiad Kaufman }; 2141de24f638SLiad Kaufman 2142c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2143c5a719eeSSara Sharon 2144c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 21454d339989SLiad Kaufman if (vif->type == NL80211_IFTYPE_AP || 2146f8510d67SNathan Chancellor vif->type == NL80211_IFTYPE_ADHOC) { 214749f71713SSara Sharon queue = mvm->probe_queue; 2148f8510d67SNathan Chancellor } else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 214949f71713SSara Sharon queue = mvm->p2p_dev_queue; 2150f8510d67SNathan Chancellor } else { 2151f8510d67SNathan Chancellor WARN(1, "Missing required TXQ for adding bcast STA\n"); 2152de24f638SLiad Kaufman return -EINVAL; 2153f8510d67SNathan Chancellor } 2154de24f638SLiad Kaufman 2155df88c08dSLiad Kaufman bsta->tfd_queue_msk |= BIT(queue); 2156c5a719eeSSara Sharon 2157cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 2158de24f638SLiad Kaufman } 2159de24f638SLiad Kaufman 2160e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_ADHOC) 2161e705c121SKalle Valo baddr = vif->bss_conf.bssid; 2162e705c121SKalle Valo 21630ae98812SSara Sharon if (WARN_ON_ONCE(bsta->sta_id == IWL_MVM_INVALID_STA)) 2164e705c121SKalle Valo return -ENOSPC; 2165e705c121SKalle Valo 2166df88c08dSLiad Kaufman ret = iwl_mvm_add_int_sta_common(mvm, bsta, baddr, 2167e705c121SKalle Valo mvmvif->id, mvmvif->color); 2168df88c08dSLiad Kaufman if (ret) 2169df88c08dSLiad Kaufman return ret; 2170df88c08dSLiad Kaufman 2171df88c08dSLiad Kaufman /* 21722f7a3863SLuca Coelho * For 22000 firmware and on we cannot add queue to a station unknown 2173c5a719eeSSara Sharon * to firmware so enable queue here - after the station was added 2174df88c08dSLiad Kaufman */ 2175310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 2176cfbc6c4cSSara Sharon queue = iwl_mvm_tvqm_enable_txq(mvm, bsta->sta_id, 2177310181ecSSara Sharon IWL_MAX_TID_COUNT, 2178c5a719eeSSara Sharon wdg_timeout); 217991cf5dedSJohannes Berg if (queue < 0) { 218091cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, bsta->sta_id); 218191cf5dedSJohannes Berg return queue; 218291cf5dedSJohannes Berg } 21837daa7624SJohannes Berg 21847b758a11SLuca Coelho if (vif->type == NL80211_IFTYPE_AP || 21857b758a11SLuca Coelho vif->type == NL80211_IFTYPE_ADHOC) 2186310181ecSSara Sharon mvm->probe_queue = queue; 2187310181ecSSara Sharon else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 2188310181ecSSara Sharon mvm->p2p_dev_queue = queue; 2189310181ecSSara Sharon } 2190df88c08dSLiad Kaufman 2191df88c08dSLiad Kaufman return 0; 2192df88c08dSLiad Kaufman } 2193df88c08dSLiad Kaufman 2194df88c08dSLiad Kaufman static void iwl_mvm_free_bcast_sta_queues(struct iwl_mvm *mvm, 2195df88c08dSLiad Kaufman struct ieee80211_vif *vif) 2196df88c08dSLiad Kaufman { 2197df88c08dSLiad Kaufman struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2198d167e81aSMordechai Goodstein int queue; 2199df88c08dSLiad Kaufman 2200df88c08dSLiad Kaufman lockdep_assert_held(&mvm->mutex); 2201df88c08dSLiad Kaufman 2202f9084775SNathan Errera iwl_mvm_flush_sta(mvm, &mvmvif->bcast_sta, true); 2203d49394a1SSara Sharon 2204d167e81aSMordechai Goodstein switch (vif->type) { 2205d167e81aSMordechai Goodstein case NL80211_IFTYPE_AP: 2206d167e81aSMordechai Goodstein case NL80211_IFTYPE_ADHOC: 2207d167e81aSMordechai Goodstein queue = mvm->probe_queue; 2208d167e81aSMordechai Goodstein break; 2209d167e81aSMordechai Goodstein case NL80211_IFTYPE_P2P_DEVICE: 2210d167e81aSMordechai Goodstein queue = mvm->p2p_dev_queue; 2211d167e81aSMordechai Goodstein break; 2212d167e81aSMordechai Goodstein default: 2213d167e81aSMordechai Goodstein WARN(1, "Can't free bcast queue on vif type %d\n", 2214d167e81aSMordechai Goodstein vif->type); 2215d167e81aSMordechai Goodstein return; 2216df88c08dSLiad Kaufman } 2217df88c08dSLiad Kaufman 2218cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, NULL, queue, IWL_MAX_TID_COUNT, 0); 2219d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) 2220d167e81aSMordechai Goodstein return; 2221d167e81aSMordechai Goodstein 2222d167e81aSMordechai Goodstein WARN_ON(!(mvmvif->bcast_sta.tfd_queue_msk & BIT(queue))); 2223d167e81aSMordechai Goodstein mvmvif->bcast_sta.tfd_queue_msk &= ~BIT(queue); 2224e705c121SKalle Valo } 2225e705c121SKalle Valo 2226e705c121SKalle Valo /* Send the FW a request to remove the station from it's internal data 2227e705c121SKalle Valo * structures, but DO NOT remove the entry from the local data structures. */ 2228e705c121SKalle Valo int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2229e705c121SKalle Valo { 2230e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2231e705c121SKalle Valo int ret; 2232e705c121SKalle Valo 2233e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2234e705c121SKalle Valo 2235df88c08dSLiad Kaufman iwl_mvm_free_bcast_sta_queues(mvm, vif); 2236df88c08dSLiad Kaufman 2237e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvmvif->bcast_sta.sta_id); 2238e705c121SKalle Valo if (ret) 2239e705c121SKalle Valo IWL_WARN(mvm, "Failed sending remove station\n"); 2240e705c121SKalle Valo return ret; 2241e705c121SKalle Valo } 2242e705c121SKalle Valo 2243e705c121SKalle Valo int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2244e705c121SKalle Valo { 2245e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2246e705c121SKalle Valo 2247e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2248e705c121SKalle Valo 2249c8f54701SJohannes Berg return iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, 0, 2250ced19f26SSara Sharon ieee80211_vif_type_p2p(vif), 2251ced19f26SSara Sharon IWL_STA_GENERAL_PURPOSE); 2252e705c121SKalle Valo } 2253e705c121SKalle Valo 2254e705c121SKalle Valo /* Allocate a new station entry for the broadcast station to the given vif, 2255e705c121SKalle Valo * and send it to the FW. 2256e705c121SKalle Valo * Note that each P2P mac should have its own broadcast station. 2257e705c121SKalle Valo * 2258e705c121SKalle Valo * @mvm: the mvm component 2259e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2260e705c121SKalle Valo * @bsta: the broadcast station to add. */ 2261d197358bSLuca Coelho int iwl_mvm_add_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2262e705c121SKalle Valo { 2263e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2264e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 2265e705c121SKalle Valo int ret; 2266e705c121SKalle Valo 2267e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2268e705c121SKalle Valo 2269e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 2270e705c121SKalle Valo if (ret) 2271e705c121SKalle Valo return ret; 2272e705c121SKalle Valo 2273e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2274e705c121SKalle Valo 2275e705c121SKalle Valo if (ret) 2276e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, bsta); 2277e705c121SKalle Valo 2278e705c121SKalle Valo return ret; 2279e705c121SKalle Valo } 2280e705c121SKalle Valo 2281e705c121SKalle Valo void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2282e705c121SKalle Valo { 2283e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2284e705c121SKalle Valo 2285e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta); 2286e705c121SKalle Valo } 2287e705c121SKalle Valo 2288e705c121SKalle Valo /* 2289e705c121SKalle Valo * Send the FW a request to remove the station from it's internal data 2290e705c121SKalle Valo * structures, and in addition remove it from the local data structure. 2291e705c121SKalle Valo */ 2292d197358bSLuca Coelho int iwl_mvm_rm_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2293e705c121SKalle Valo { 2294e705c121SKalle Valo int ret; 2295e705c121SKalle Valo 2296e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2297e705c121SKalle Valo 2298e705c121SKalle Valo ret = iwl_mvm_send_rm_bcast_sta(mvm, vif); 2299e705c121SKalle Valo 2300e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif); 2301e705c121SKalle Valo 2302e705c121SKalle Valo return ret; 2303e705c121SKalle Valo } 2304e705c121SKalle Valo 230526d6c16bSSara Sharon /* 230626d6c16bSSara Sharon * Allocate a new station entry for the multicast station to the given vif, 230726d6c16bSSara Sharon * and send it to the FW. 230826d6c16bSSara Sharon * Note that each AP/GO mac should have its own multicast station. 230926d6c16bSSara Sharon * 231026d6c16bSSara Sharon * @mvm: the mvm component 231126d6c16bSSara Sharon * @vif: the interface to which the multicast station is added 231226d6c16bSSara Sharon */ 231326d6c16bSSara Sharon int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 231426d6c16bSSara Sharon { 231526d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 231626d6c16bSSara Sharon struct iwl_mvm_int_sta *msta = &mvmvif->mcast_sta; 231726d6c16bSSara Sharon static const u8 _maddr[] = {0x03, 0x00, 0x00, 0x00, 0x00, 0x00}; 231826d6c16bSSara Sharon const u8 *maddr = _maddr; 231926d6c16bSSara Sharon struct iwl_trans_txq_scd_cfg cfg = { 2320192a7e1fSJohannes Berg .fifo = vif->type == NL80211_IFTYPE_AP ? 2321192a7e1fSJohannes Berg IWL_MVM_TX_FIFO_MCAST : IWL_MVM_TX_FIFO_BE, 232226d6c16bSSara Sharon .sta_id = msta->sta_id, 23236508de03SIlan Peer .tid = 0, 232426d6c16bSSara Sharon .aggregate = false, 232526d6c16bSSara Sharon .frame_limit = IWL_FRAME_LIMIT, 232626d6c16bSSara Sharon }; 232726d6c16bSSara Sharon unsigned int timeout = iwl_mvm_get_wd_timeout(mvm, vif, false, false); 232826d6c16bSSara Sharon int ret; 232926d6c16bSSara Sharon 233026d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 233126d6c16bSSara Sharon 2332ee48b722SLiad Kaufman if (WARN_ON(vif->type != NL80211_IFTYPE_AP && 2333ee48b722SLiad Kaufman vif->type != NL80211_IFTYPE_ADHOC)) 233426d6c16bSSara Sharon return -ENOTSUPP; 233526d6c16bSSara Sharon 2336ced19f26SSara Sharon /* 2337fc07bd8cSSara Sharon * In IBSS, ieee80211_check_queues() sets the cab_queue to be 2338fc07bd8cSSara Sharon * invalid, so make sure we use the queue we want. 2339fc07bd8cSSara Sharon * Note that this is done here as we want to avoid making DQA 2340fc07bd8cSSara Sharon * changes in mac80211 layer. 2341fc07bd8cSSara Sharon */ 2342cfbc6c4cSSara Sharon if (vif->type == NL80211_IFTYPE_ADHOC) 2343cfbc6c4cSSara Sharon mvmvif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE; 2344fc07bd8cSSara Sharon 2345fc07bd8cSSara Sharon /* 2346ced19f26SSara Sharon * While in previous FWs we had to exclude cab queue from TFD queue 2347ced19f26SSara Sharon * mask, now it is needed as any other queue. 2348ced19f26SSara Sharon */ 2349ced19f26SSara Sharon if (!iwl_mvm_has_new_tx_api(mvm) && 2350ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2351cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, 2352cfbc6c4cSSara Sharon timeout); 2353cfbc6c4cSSara Sharon msta->tfd_queue_msk |= BIT(mvmvif->cab_queue); 2354ced19f26SSara Sharon } 235526d6c16bSSara Sharon ret = iwl_mvm_add_int_sta_common(mvm, msta, maddr, 235626d6c16bSSara Sharon mvmvif->id, mvmvif->color); 235791cf5dedSJohannes Berg if (ret) 235891cf5dedSJohannes Berg goto err; 235926d6c16bSSara Sharon 236026d6c16bSSara Sharon /* 236126d6c16bSSara Sharon * Enable cab queue after the ADD_STA command is sent. 23622f7a3863SLuca Coelho * This is needed for 22000 firmware which won't accept SCD_QUEUE_CFG 2363ced19f26SSara Sharon * command with unknown station id, and for FW that doesn't support 2364ced19f26SSara Sharon * station API since the cab queue is not included in the 2365ced19f26SSara Sharon * tfd_queue_mask. 236626d6c16bSSara Sharon */ 2367310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 2368cfbc6c4cSSara Sharon int queue = iwl_mvm_tvqm_enable_txq(mvm, msta->sta_id, 23696508de03SIlan Peer 0, 237026d6c16bSSara Sharon timeout); 237191cf5dedSJohannes Berg if (queue < 0) { 237291cf5dedSJohannes Berg ret = queue; 237391cf5dedSJohannes Berg goto err; 237491cf5dedSJohannes Berg } 2375e2af3fabSSara Sharon mvmvif->cab_queue = queue; 2376ced19f26SSara Sharon } else if (!fw_has_api(&mvm->fw->ucode_capa, 2377fc07bd8cSSara Sharon IWL_UCODE_TLV_API_STA_TYPE)) 2378cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, 2379cfbc6c4cSSara Sharon timeout); 238026d6c16bSSara Sharon 238126d6c16bSSara Sharon return 0; 238291cf5dedSJohannes Berg err: 238391cf5dedSJohannes Berg iwl_mvm_dealloc_int_sta(mvm, msta); 238491cf5dedSJohannes Berg return ret; 238526d6c16bSSara Sharon } 238626d6c16bSSara Sharon 238728916a16SEmmanuel Grumbach static int __iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, u8 sta_id, 238828916a16SEmmanuel Grumbach struct ieee80211_key_conf *keyconf, 238928916a16SEmmanuel Grumbach bool mcast) 239028916a16SEmmanuel Grumbach { 239128916a16SEmmanuel Grumbach union { 239228916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 239328916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd cmd; 239428916a16SEmmanuel Grumbach } u = {}; 239528916a16SEmmanuel Grumbach bool new_api = fw_has_api(&mvm->fw->ucode_capa, 239628916a16SEmmanuel Grumbach IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 239728916a16SEmmanuel Grumbach __le16 key_flags; 239828916a16SEmmanuel Grumbach int ret, size; 239928916a16SEmmanuel Grumbach u32 status; 240028916a16SEmmanuel Grumbach 240128916a16SEmmanuel Grumbach /* This is a valid situation for GTK removal */ 240228916a16SEmmanuel Grumbach if (sta_id == IWL_MVM_INVALID_STA) 240328916a16SEmmanuel Grumbach return 0; 240428916a16SEmmanuel Grumbach 240528916a16SEmmanuel Grumbach key_flags = cpu_to_le16((keyconf->keyidx << STA_KEY_FLG_KEYID_POS) & 240628916a16SEmmanuel Grumbach STA_KEY_FLG_KEYID_MSK); 240728916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_FLG_NO_ENC | STA_KEY_FLG_WEP_KEY_MAP); 240828916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_NOT_VALID); 240928916a16SEmmanuel Grumbach 241028916a16SEmmanuel Grumbach if (mcast) 241128916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 241228916a16SEmmanuel Grumbach 241328916a16SEmmanuel Grumbach /* 241428916a16SEmmanuel Grumbach * The fields assigned here are in the same location at the start 241528916a16SEmmanuel Grumbach * of the command, so we can do this union trick. 241628916a16SEmmanuel Grumbach */ 241728916a16SEmmanuel Grumbach u.cmd.common.key_flags = key_flags; 241828916a16SEmmanuel Grumbach u.cmd.common.key_offset = keyconf->hw_key_idx; 241928916a16SEmmanuel Grumbach u.cmd.common.sta_id = sta_id; 242028916a16SEmmanuel Grumbach 242128916a16SEmmanuel Grumbach size = new_api ? sizeof(u.cmd) : sizeof(u.cmd_v1); 242228916a16SEmmanuel Grumbach 242328916a16SEmmanuel Grumbach status = ADD_STA_SUCCESS; 242428916a16SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, &u.cmd, 242528916a16SEmmanuel Grumbach &status); 242628916a16SEmmanuel Grumbach 242728916a16SEmmanuel Grumbach switch (status) { 242828916a16SEmmanuel Grumbach case ADD_STA_SUCCESS: 242928916a16SEmmanuel Grumbach IWL_DEBUG_WEP(mvm, "MODIFY_STA: remove sta key passed\n"); 243028916a16SEmmanuel Grumbach break; 243128916a16SEmmanuel Grumbach default: 243228916a16SEmmanuel Grumbach ret = -EIO; 243328916a16SEmmanuel Grumbach IWL_ERR(mvm, "MODIFY_STA: remove sta key failed\n"); 243428916a16SEmmanuel Grumbach break; 243528916a16SEmmanuel Grumbach } 243628916a16SEmmanuel Grumbach 243728916a16SEmmanuel Grumbach return ret; 243828916a16SEmmanuel Grumbach } 243928916a16SEmmanuel Grumbach 244026d6c16bSSara Sharon /* 244126d6c16bSSara Sharon * Send the FW a request to remove the station from it's internal data 244226d6c16bSSara Sharon * structures, and in addition remove it from the local data structure. 244326d6c16bSSara Sharon */ 244426d6c16bSSara Sharon int iwl_mvm_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 244526d6c16bSSara Sharon { 244626d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 244726d6c16bSSara Sharon int ret; 244826d6c16bSSara Sharon 244926d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 245026d6c16bSSara Sharon 2451f9084775SNathan Errera iwl_mvm_flush_sta(mvm, &mvmvif->mcast_sta, true); 2452d49394a1SSara Sharon 2453cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, NULL, mvmvif->cab_queue, 0, 0); 245426d6c16bSSara Sharon 245526d6c16bSSara Sharon ret = iwl_mvm_rm_sta_common(mvm, mvmvif->mcast_sta.sta_id); 245626d6c16bSSara Sharon if (ret) 245726d6c16bSSara Sharon IWL_WARN(mvm, "Failed sending remove station\n"); 245826d6c16bSSara Sharon 245926d6c16bSSara Sharon return ret; 246026d6c16bSSara Sharon } 246126d6c16bSSara Sharon 2462e705c121SKalle Valo #define IWL_MAX_RX_BA_SESSIONS 16 2463e705c121SKalle Valo 2464b915c101SSara Sharon static void iwl_mvm_sync_rxq_del_ba(struct iwl_mvm *mvm, u8 baid) 246510b2b201SSara Sharon { 24666b2dbce5SEmmanuel Grumbach struct iwl_mvm_rss_sync_notif notif = { 2467b915c101SSara Sharon .metadata.type = IWL_MVM_RXQ_NOTIF_DEL_BA, 2468b915c101SSara Sharon .metadata.sync = 1, 2469b915c101SSara Sharon .delba.baid = baid, 2470b915c101SSara Sharon }; 2471b915c101SSara Sharon iwl_mvm_sync_rx_queues_internal(mvm, (void *)¬if, sizeof(notif)); 247210b2b201SSara Sharon }; 247310b2b201SSara Sharon 2474b915c101SSara Sharon static void iwl_mvm_free_reorder(struct iwl_mvm *mvm, 2475b915c101SSara Sharon struct iwl_mvm_baid_data *data) 2476b915c101SSara Sharon { 2477b915c101SSara Sharon int i; 2478b915c101SSara Sharon 2479b915c101SSara Sharon iwl_mvm_sync_rxq_del_ba(mvm, data->baid); 2480b915c101SSara Sharon 2481b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2482b915c101SSara Sharon int j; 2483b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2484b915c101SSara Sharon &data->reorder_buf[i]; 2485dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2486dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2487b915c101SSara Sharon 24880690405fSSara Sharon spin_lock_bh(&reorder_buf->lock); 24890690405fSSara Sharon if (likely(!reorder_buf->num_stored)) { 24900690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 2491b915c101SSara Sharon continue; 24920690405fSSara Sharon } 2493b915c101SSara Sharon 2494b915c101SSara Sharon /* 2495b915c101SSara Sharon * This shouldn't happen in regular DELBA since the internal 2496b915c101SSara Sharon * delBA notification should trigger a release of all frames in 2497b915c101SSara Sharon * the reorder buffer. 2498b915c101SSara Sharon */ 2499b915c101SSara Sharon WARN_ON(1); 2500b915c101SSara Sharon 2501b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2502dfdddd92SJohannes Berg __skb_queue_purge(&entries[j].e.frames); 25030690405fSSara Sharon /* 25040690405fSSara Sharon * Prevent timer re-arm. This prevents a very far fetched case 25050690405fSSara Sharon * where we timed out on the notification. There may be prior 25060690405fSSara Sharon * RX frames pending in the RX queue before the notification 25070690405fSSara Sharon * that might get processed between now and the actual deletion 25080690405fSSara Sharon * and we would re-arm the timer although we are deleting the 25090690405fSSara Sharon * reorder buffer. 25100690405fSSara Sharon */ 25110690405fSSara Sharon reorder_buf->removed = true; 25120690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 25130690405fSSara Sharon del_timer_sync(&reorder_buf->reorder_timer); 2514b915c101SSara Sharon } 2515b915c101SSara Sharon } 2516b915c101SSara Sharon 2517b915c101SSara Sharon static void iwl_mvm_init_reorder_buffer(struct iwl_mvm *mvm, 2518b915c101SSara Sharon struct iwl_mvm_baid_data *data, 2519514c3069SLuca Coelho u16 ssn, u16 buf_size) 2520b915c101SSara Sharon { 2521b915c101SSara Sharon int i; 2522b915c101SSara Sharon 2523b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2524b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2525b915c101SSara Sharon &data->reorder_buf[i]; 2526dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2527dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2528b915c101SSara Sharon int j; 2529b915c101SSara Sharon 2530b915c101SSara Sharon reorder_buf->num_stored = 0; 2531b915c101SSara Sharon reorder_buf->head_sn = ssn; 2532b915c101SSara Sharon reorder_buf->buf_size = buf_size; 25330690405fSSara Sharon /* rx reorder timer */ 25348cef5344SKees Cook timer_setup(&reorder_buf->reorder_timer, 25358cef5344SKees Cook iwl_mvm_reorder_timer_expired, 0); 25360690405fSSara Sharon spin_lock_init(&reorder_buf->lock); 25370690405fSSara Sharon reorder_buf->mvm = mvm; 2538b915c101SSara Sharon reorder_buf->queue = i; 25395d43eab6SSara Sharon reorder_buf->valid = false; 2540b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2541dfdddd92SJohannes Berg __skb_queue_head_init(&entries[j].e.frames); 2542b915c101SSara Sharon } 254310b2b201SSara Sharon } 254410b2b201SSara Sharon 2545e705c121SKalle Valo int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2546514c3069SLuca Coelho int tid, u16 ssn, bool start, u16 buf_size, u16 timeout) 2547e705c121SKalle Valo { 2548e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2549e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 255010b2b201SSara Sharon struct iwl_mvm_baid_data *baid_data = NULL; 2551e705c121SKalle Valo int ret; 2552e705c121SKalle Valo u32 status; 2553e705c121SKalle Valo 2554e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2555e705c121SKalle Valo 2556e705c121SKalle Valo if (start && mvm->rx_ba_sessions >= IWL_MAX_RX_BA_SESSIONS) { 2557e705c121SKalle Valo IWL_WARN(mvm, "Not enough RX BA SESSIONS\n"); 2558e705c121SKalle Valo return -ENOSPC; 2559e705c121SKalle Valo } 2560e705c121SKalle Valo 256110b2b201SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && start) { 2562dfdddd92SJohannes Berg u16 reorder_buf_size = buf_size * sizeof(baid_data->entries[0]); 2563dfdddd92SJohannes Berg 2564dfdddd92SJohannes Berg /* sparse doesn't like the __align() so don't check */ 2565dfdddd92SJohannes Berg #ifndef __CHECKER__ 2566dfdddd92SJohannes Berg /* 2567dfdddd92SJohannes Berg * The division below will be OK if either the cache line size 2568dfdddd92SJohannes Berg * can be divided by the entry size (ALIGN will round up) or if 2569dfdddd92SJohannes Berg * if the entry size can be divided by the cache line size, in 2570dfdddd92SJohannes Berg * which case the ALIGN() will do nothing. 2571dfdddd92SJohannes Berg */ 2572dfdddd92SJohannes Berg BUILD_BUG_ON(SMP_CACHE_BYTES % sizeof(baid_data->entries[0]) && 2573dfdddd92SJohannes Berg sizeof(baid_data->entries[0]) % SMP_CACHE_BYTES); 2574dfdddd92SJohannes Berg #endif 2575dfdddd92SJohannes Berg 2576dfdddd92SJohannes Berg /* 2577dfdddd92SJohannes Berg * Upward align the reorder buffer size to fill an entire cache 2578dfdddd92SJohannes Berg * line for each queue, to avoid sharing cache lines between 2579dfdddd92SJohannes Berg * different queues. 2580dfdddd92SJohannes Berg */ 2581dfdddd92SJohannes Berg reorder_buf_size = ALIGN(reorder_buf_size, SMP_CACHE_BYTES); 2582dfdddd92SJohannes Berg 258310b2b201SSara Sharon /* 258410b2b201SSara Sharon * Allocate here so if allocation fails we can bail out early 258510b2b201SSara Sharon * before starting the BA session in the firmware 258610b2b201SSara Sharon */ 2587b915c101SSara Sharon baid_data = kzalloc(sizeof(*baid_data) + 2588b915c101SSara Sharon mvm->trans->num_rx_queues * 2589dfdddd92SJohannes Berg reorder_buf_size, 2590b915c101SSara Sharon GFP_KERNEL); 259110b2b201SSara Sharon if (!baid_data) 259210b2b201SSara Sharon return -ENOMEM; 2593dfdddd92SJohannes Berg 2594dfdddd92SJohannes Berg /* 2595dfdddd92SJohannes Berg * This division is why we need the above BUILD_BUG_ON(), 2596dfdddd92SJohannes Berg * if that doesn't hold then this will not be right. 2597dfdddd92SJohannes Berg */ 2598dfdddd92SJohannes Berg baid_data->entries_per_queue = 2599dfdddd92SJohannes Berg reorder_buf_size / sizeof(baid_data->entries[0]); 260010b2b201SSara Sharon } 260110b2b201SSara Sharon 2602e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 2603e705c121SKalle Valo cmd.sta_id = mvm_sta->sta_id; 2604e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 2605e705c121SKalle Valo if (start) { 2606e705c121SKalle Valo cmd.add_immediate_ba_tid = (u8) tid; 2607e705c121SKalle Valo cmd.add_immediate_ba_ssn = cpu_to_le16(ssn); 2608514c3069SLuca Coelho cmd.rx_ba_window = cpu_to_le16(buf_size); 2609e705c121SKalle Valo } else { 2610e705c121SKalle Valo cmd.remove_immediate_ba_tid = (u8) tid; 2611e705c121SKalle Valo } 2612e705c121SKalle Valo cmd.modify_mask = start ? STA_MODIFY_ADD_BA_TID : 2613e705c121SKalle Valo STA_MODIFY_REMOVE_BA_TID; 2614e705c121SKalle Valo 2615e705c121SKalle Valo status = ADD_STA_SUCCESS; 2616854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 2617854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 2618e705c121SKalle Valo &cmd, &status); 2619e705c121SKalle Valo if (ret) 262010b2b201SSara Sharon goto out_free; 2621e705c121SKalle Valo 2622837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 2623e705c121SKalle Valo case ADD_STA_SUCCESS: 262435263a03SSara Sharon IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n", 2625e705c121SKalle Valo start ? "start" : "stopp"); 2626e705c121SKalle Valo break; 2627e705c121SKalle Valo case ADD_STA_IMMEDIATE_BA_FAILURE: 2628e705c121SKalle Valo IWL_WARN(mvm, "RX BA Session refused by fw\n"); 2629e705c121SKalle Valo ret = -ENOSPC; 2630e705c121SKalle Valo break; 2631e705c121SKalle Valo default: 2632e705c121SKalle Valo ret = -EIO; 2633e705c121SKalle Valo IWL_ERR(mvm, "RX BA Session failed %sing, status 0x%x\n", 2634e705c121SKalle Valo start ? "start" : "stopp", status); 2635e705c121SKalle Valo break; 2636e705c121SKalle Valo } 2637e705c121SKalle Valo 263810b2b201SSara Sharon if (ret) 263910b2b201SSara Sharon goto out_free; 264010b2b201SSara Sharon 264110b2b201SSara Sharon if (start) { 264210b2b201SSara Sharon u8 baid; 264310b2b201SSara Sharon 2644e705c121SKalle Valo mvm->rx_ba_sessions++; 264510b2b201SSara Sharon 264610b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 264710b2b201SSara Sharon return 0; 264810b2b201SSara Sharon 264910b2b201SSara Sharon if (WARN_ON(!(status & IWL_ADD_STA_BAID_VALID_MASK))) { 265010b2b201SSara Sharon ret = -EINVAL; 265110b2b201SSara Sharon goto out_free; 265210b2b201SSara Sharon } 265310b2b201SSara Sharon baid = (u8)((status & IWL_ADD_STA_BAID_MASK) >> 265410b2b201SSara Sharon IWL_ADD_STA_BAID_SHIFT); 265510b2b201SSara Sharon baid_data->baid = baid; 265610b2b201SSara Sharon baid_data->timeout = timeout; 265710b2b201SSara Sharon baid_data->last_rx = jiffies; 26588cef5344SKees Cook baid_data->rcu_ptr = &mvm->baid_map[baid]; 26598cef5344SKees Cook timer_setup(&baid_data->session_timer, 26608cef5344SKees Cook iwl_mvm_rx_agg_session_expired, 0); 266110b2b201SSara Sharon baid_data->mvm = mvm; 266210b2b201SSara Sharon baid_data->tid = tid; 266310b2b201SSara Sharon baid_data->sta_id = mvm_sta->sta_id; 266410b2b201SSara Sharon 266510b2b201SSara Sharon mvm_sta->tid_to_baid[tid] = baid; 266610b2b201SSara Sharon if (timeout) 266710b2b201SSara Sharon mod_timer(&baid_data->session_timer, 266810b2b201SSara Sharon TU_TO_EXP_TIME(timeout * 2)); 266910b2b201SSara Sharon 26703f1c4c58SSara Sharon iwl_mvm_init_reorder_buffer(mvm, baid_data, ssn, buf_size); 267110b2b201SSara Sharon /* 267210b2b201SSara Sharon * protect the BA data with RCU to cover a case where our 267310b2b201SSara Sharon * internal RX sync mechanism will timeout (not that it's 267410b2b201SSara Sharon * supposed to happen) and we will free the session data while 267510b2b201SSara Sharon * RX is being processed in parallel 267610b2b201SSara Sharon */ 267735263a03SSara Sharon IWL_DEBUG_HT(mvm, "Sta %d(%d) is assigned to BAID %d\n", 267835263a03SSara Sharon mvm_sta->sta_id, tid, baid); 267910b2b201SSara Sharon WARN_ON(rcu_access_pointer(mvm->baid_map[baid])); 268010b2b201SSara Sharon rcu_assign_pointer(mvm->baid_map[baid], baid_data); 268160dec523SSara Sharon } else { 268210b2b201SSara Sharon u8 baid = mvm_sta->tid_to_baid[tid]; 268310b2b201SSara Sharon 268460dec523SSara Sharon if (mvm->rx_ba_sessions > 0) 2685e705c121SKalle Valo /* check that restart flow didn't zero the counter */ 2686e705c121SKalle Valo mvm->rx_ba_sessions--; 268710b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 268810b2b201SSara Sharon return 0; 2689e705c121SKalle Valo 269010b2b201SSara Sharon if (WARN_ON(baid == IWL_RX_REORDER_DATA_INVALID_BAID)) 269110b2b201SSara Sharon return -EINVAL; 269210b2b201SSara Sharon 269310b2b201SSara Sharon baid_data = rcu_access_pointer(mvm->baid_map[baid]); 269410b2b201SSara Sharon if (WARN_ON(!baid_data)) 269510b2b201SSara Sharon return -EINVAL; 269610b2b201SSara Sharon 269710b2b201SSara Sharon /* synchronize all rx queues so we can safely delete */ 2698b915c101SSara Sharon iwl_mvm_free_reorder(mvm, baid_data); 269910b2b201SSara Sharon del_timer_sync(&baid_data->session_timer); 270010b2b201SSara Sharon RCU_INIT_POINTER(mvm->baid_map[baid], NULL); 270110b2b201SSara Sharon kfree_rcu(baid_data, rcu_head); 270235263a03SSara Sharon IWL_DEBUG_HT(mvm, "BAID %d is free\n", baid); 270310b2b201SSara Sharon } 270410b2b201SSara Sharon return 0; 270510b2b201SSara Sharon 270610b2b201SSara Sharon out_free: 270710b2b201SSara Sharon kfree(baid_data); 2708e705c121SKalle Valo return ret; 2709e705c121SKalle Valo } 2710e705c121SKalle Valo 27119794c64fSLiad Kaufman int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2712e705c121SKalle Valo int tid, u8 queue, bool start) 2713e705c121SKalle Valo { 2714e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2715e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 2716e705c121SKalle Valo int ret; 2717e705c121SKalle Valo u32 status; 2718e705c121SKalle Valo 2719e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2720e705c121SKalle Valo 2721e705c121SKalle Valo if (start) { 2722e705c121SKalle Valo mvm_sta->tfd_queue_msk |= BIT(queue); 2723e705c121SKalle Valo mvm_sta->tid_disable_agg &= ~BIT(tid); 2724e705c121SKalle Valo } else { 2725cf961e16SLiad Kaufman /* In DQA-mode the queue isn't removed on agg termination */ 2726e705c121SKalle Valo mvm_sta->tid_disable_agg |= BIT(tid); 2727e705c121SKalle Valo } 2728e705c121SKalle Valo 2729e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 2730e705c121SKalle Valo cmd.sta_id = mvm_sta->sta_id; 2731e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 2732bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) 2733bb49701bSSara Sharon cmd.modify_mask = STA_MODIFY_QUEUES; 2734bb49701bSSara Sharon cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 2735e705c121SKalle Valo cmd.tfd_queue_msk = cpu_to_le32(mvm_sta->tfd_queue_msk); 2736e705c121SKalle Valo cmd.tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg); 2737e705c121SKalle Valo 2738e705c121SKalle Valo status = ADD_STA_SUCCESS; 2739854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 2740854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 2741e705c121SKalle Valo &cmd, &status); 2742e705c121SKalle Valo if (ret) 2743e705c121SKalle Valo return ret; 2744e705c121SKalle Valo 2745837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 2746e705c121SKalle Valo case ADD_STA_SUCCESS: 2747e705c121SKalle Valo break; 2748e705c121SKalle Valo default: 2749e705c121SKalle Valo ret = -EIO; 2750e705c121SKalle Valo IWL_ERR(mvm, "TX BA Session failed %sing, status 0x%x\n", 2751e705c121SKalle Valo start ? "start" : "stopp", status); 2752e705c121SKalle Valo break; 2753e705c121SKalle Valo } 2754e705c121SKalle Valo 2755e705c121SKalle Valo return ret; 2756e705c121SKalle Valo } 2757e705c121SKalle Valo 2758e705c121SKalle Valo const u8 tid_to_mac80211_ac[] = { 2759e705c121SKalle Valo IEEE80211_AC_BE, 2760e705c121SKalle Valo IEEE80211_AC_BK, 2761e705c121SKalle Valo IEEE80211_AC_BK, 2762e705c121SKalle Valo IEEE80211_AC_BE, 2763e705c121SKalle Valo IEEE80211_AC_VI, 2764e705c121SKalle Valo IEEE80211_AC_VI, 2765e705c121SKalle Valo IEEE80211_AC_VO, 2766e705c121SKalle Valo IEEE80211_AC_VO, 27679794c64fSLiad Kaufman IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 2768e705c121SKalle Valo }; 2769e705c121SKalle Valo 2770e705c121SKalle Valo static const u8 tid_to_ucode_ac[] = { 2771e705c121SKalle Valo AC_BE, 2772e705c121SKalle Valo AC_BK, 2773e705c121SKalle Valo AC_BK, 2774e705c121SKalle Valo AC_BE, 2775e705c121SKalle Valo AC_VI, 2776e705c121SKalle Valo AC_VI, 2777e705c121SKalle Valo AC_VO, 2778e705c121SKalle Valo AC_VO, 2779e705c121SKalle Valo }; 2780e705c121SKalle Valo 2781e705c121SKalle Valo int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2782e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 *ssn) 2783e705c121SKalle Valo { 2784e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2785e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 2786dd32162dSLiad Kaufman u16 normalized_ssn; 2787b0d795a9SMordechay Goodstein u16 txq_id; 2788e705c121SKalle Valo int ret; 2789e705c121SKalle Valo 2790e705c121SKalle Valo if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT)) 2791e705c121SKalle Valo return -EINVAL; 2792e705c121SKalle Valo 2793bd800e41SNaftali Goldstein if (mvmsta->tid_data[tid].state != IWL_AGG_QUEUED && 2794bd800e41SNaftali Goldstein mvmsta->tid_data[tid].state != IWL_AGG_OFF) { 2795bd800e41SNaftali Goldstein IWL_ERR(mvm, 2796bd800e41SNaftali Goldstein "Start AGG when state is not IWL_AGG_QUEUED or IWL_AGG_OFF %d!\n", 2797e705c121SKalle Valo mvmsta->tid_data[tid].state); 2798e705c121SKalle Valo return -ENXIO; 2799e705c121SKalle Valo } 2800e705c121SKalle Valo 2801e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2802e705c121SKalle Valo 2803bd8f3fc6SLiad Kaufman if (mvmsta->tid_data[tid].txq_id == IWL_MVM_INVALID_QUEUE && 2804bd8f3fc6SLiad Kaufman iwl_mvm_has_new_tx_api(mvm)) { 2805bd8f3fc6SLiad Kaufman u8 ac = tid_to_mac80211_ac[tid]; 2806bd8f3fc6SLiad Kaufman 2807bd8f3fc6SLiad Kaufman ret = iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 2808bd8f3fc6SLiad Kaufman if (ret) 2809bd8f3fc6SLiad Kaufman return ret; 2810bd8f3fc6SLiad Kaufman } 2811bd8f3fc6SLiad Kaufman 2812e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2813e705c121SKalle Valo 2814cf961e16SLiad Kaufman /* 2815cf961e16SLiad Kaufman * Note the possible cases: 28164a6d2e52SAvraham Stern * 1. An enabled TXQ - TXQ needs to become agg'ed 28174a6d2e52SAvraham Stern * 2. The TXQ hasn't yet been enabled, so find a free one and mark 28184a6d2e52SAvraham Stern * it as reserved 2819cf961e16SLiad Kaufman */ 2820cf961e16SLiad Kaufman txq_id = mvmsta->tid_data[tid].txq_id; 282134e10860SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) { 2822b0d795a9SMordechay Goodstein ret = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 2823c8f54701SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 2824c8f54701SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 2825b0d795a9SMordechay Goodstein if (ret < 0) { 2826e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate agg queue\n"); 2827f3f240f9SJohannes Berg goto out; 2828e705c121SKalle Valo } 2829cf961e16SLiad Kaufman 2830b0d795a9SMordechay Goodstein txq_id = ret; 2831b0d795a9SMordechay Goodstein 2832cf961e16SLiad Kaufman /* TXQ hasn't yet been enabled, so mark it only as reserved */ 2833cf961e16SLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_RESERVED; 2834b0d795a9SMordechay Goodstein } else if (WARN_ON(txq_id >= IWL_MAX_HW_QUEUES)) { 2835b0d795a9SMordechay Goodstein ret = -ENXIO; 2836b0d795a9SMordechay Goodstein IWL_ERR(mvm, "tid_id %d out of range (0, %d)!\n", 2837b0d795a9SMordechay Goodstein tid, IWL_MAX_HW_QUEUES - 1); 2838b0d795a9SMordechay Goodstein goto out; 2839b0d795a9SMordechay Goodstein 28404a6d2e52SAvraham Stern } else if (unlikely(mvm->queue_info[txq_id].status == 28414a6d2e52SAvraham Stern IWL_MVM_QUEUE_SHARED)) { 28424a6d2e52SAvraham Stern ret = -ENXIO; 28434a6d2e52SAvraham Stern IWL_DEBUG_TX_QUEUES(mvm, 28444a6d2e52SAvraham Stern "Can't start tid %d agg on shared queue!\n", 28454a6d2e52SAvraham Stern tid); 2846f3f240f9SJohannes Berg goto out; 2847cf961e16SLiad Kaufman } 28489f9af3d7SLiad Kaufman 2849cf961e16SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 2850cf961e16SLiad Kaufman "AGG for tid %d will be on queue #%d\n", 2851cf961e16SLiad Kaufman tid, txq_id); 2852cf961e16SLiad Kaufman 2853e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 2854e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 2855e705c121SKalle Valo tid_data->txq_id = txq_id; 2856e705c121SKalle Valo *ssn = tid_data->ssn; 2857e705c121SKalle Valo 2858e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 2859e705c121SKalle Valo "Start AGG: sta %d tid %d queue %d - ssn = %d, next_recl = %d\n", 2860e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->ssn, 2861e705c121SKalle Valo tid_data->next_reclaimed); 2862e705c121SKalle Valo 2863dd32162dSLiad Kaufman /* 28642f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 2865dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 2866dd32162dSLiad Kaufman */ 2867dd32162dSLiad Kaufman normalized_ssn = tid_data->ssn; 2868286ca8ebSLuca Coelho if (mvm->trans->trans_cfg->gen2) 2869dd32162dSLiad Kaufman normalized_ssn &= 0xff; 2870dd32162dSLiad Kaufman 2871dd32162dSLiad Kaufman if (normalized_ssn == tid_data->next_reclaimed) { 2872e705c121SKalle Valo tid_data->state = IWL_AGG_STARTING; 28732ce113deSJohannes Berg ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 2874e705c121SKalle Valo } else { 2875e705c121SKalle Valo tid_data->state = IWL_EMPTYING_HW_QUEUE_ADDBA; 28767e0ca723SMordechay Goodstein ret = IEEE80211_AMPDU_TX_START_DELAY_ADDBA; 28772ce113deSJohannes Berg } 2878e705c121SKalle Valo 28799f9af3d7SLiad Kaufman out: 2880e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2881e705c121SKalle Valo 2882e705c121SKalle Valo return ret; 2883e705c121SKalle Valo } 2884e705c121SKalle Valo 2885e705c121SKalle Valo int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2886514c3069SLuca Coelho struct ieee80211_sta *sta, u16 tid, u16 buf_size, 2887bb81bb68SEmmanuel Grumbach bool amsdu) 2888e705c121SKalle Valo { 2889e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2890e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2891e705c121SKalle Valo unsigned int wdg_timeout = 2892e705c121SKalle Valo iwl_mvm_get_wd_timeout(mvm, vif, sta->tdls, false); 2893eea76c36SEmmanuel Grumbach int queue, ret; 2894cf961e16SLiad Kaufman bool alloc_queue = true; 28959f9af3d7SLiad Kaufman enum iwl_mvm_queue_status queue_status; 2896e705c121SKalle Valo u16 ssn; 2897e705c121SKalle Valo 2898eea76c36SEmmanuel Grumbach struct iwl_trans_txq_scd_cfg cfg = { 2899eea76c36SEmmanuel Grumbach .sta_id = mvmsta->sta_id, 2900eea76c36SEmmanuel Grumbach .tid = tid, 2901eea76c36SEmmanuel Grumbach .frame_limit = buf_size, 2902eea76c36SEmmanuel Grumbach .aggregate = true, 2903eea76c36SEmmanuel Grumbach }; 2904eea76c36SEmmanuel Grumbach 2905ecaf71deSGregory Greenman /* 2906ecaf71deSGregory Greenman * When FW supports TLC_OFFLOAD, it also implements Tx aggregation 2907ecaf71deSGregory Greenman * manager, so this function should never be called in this case. 2908ecaf71deSGregory Greenman */ 29094243edb4SEmmanuel Grumbach if (WARN_ON_ONCE(iwl_mvm_has_tlc_offload(mvm))) 2910ecaf71deSGregory Greenman return -EINVAL; 2911ecaf71deSGregory Greenman 2912e705c121SKalle Valo BUILD_BUG_ON((sizeof(mvmsta->agg_tids) * BITS_PER_BYTE) 2913e705c121SKalle Valo != IWL_MAX_TID_COUNT); 2914e705c121SKalle Valo 2915e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2916e705c121SKalle Valo ssn = tid_data->ssn; 2917e705c121SKalle Valo queue = tid_data->txq_id; 2918e705c121SKalle Valo tid_data->state = IWL_AGG_ON; 2919e705c121SKalle Valo mvmsta->agg_tids |= BIT(tid); 2920e705c121SKalle Valo tid_data->ssn = 0xffff; 2921bb81bb68SEmmanuel Grumbach tid_data->amsdu_in_ampdu_allowed = amsdu; 2922e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2923e705c121SKalle Valo 292434e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 292534e10860SSara Sharon /* 29260ec9257bSSara Sharon * If there is no queue for this tid, iwl_mvm_sta_tx_agg_start() 29270ec9257bSSara Sharon * would have failed, so if we are here there is no need to 29280ec9257bSSara Sharon * allocate a queue. 29290ec9257bSSara Sharon * However, if aggregation size is different than the default 29300ec9257bSSara Sharon * size, the scheduler should be reconfigured. 29310ec9257bSSara Sharon * We cannot do this with the new TX API, so return unsupported 29320ec9257bSSara Sharon * for now, until it will be offloaded to firmware.. 29330ec9257bSSara Sharon * Note that if SCD default value changes - this condition 29340ec9257bSSara Sharon * should be updated as well. 293534e10860SSara Sharon */ 29360ec9257bSSara Sharon if (buf_size < IWL_FRAME_LIMIT) 293734e10860SSara Sharon return -ENOTSUPP; 293834e10860SSara Sharon 293934e10860SSara Sharon ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 294034e10860SSara Sharon if (ret) 294134e10860SSara Sharon return -EIO; 294234e10860SSara Sharon goto out; 294334e10860SSara Sharon } 294434e10860SSara Sharon 2945eea76c36SEmmanuel Grumbach cfg.fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 2946e705c121SKalle Valo 29479f9af3d7SLiad Kaufman queue_status = mvm->queue_info[queue].status; 29489f9af3d7SLiad Kaufman 2949cf961e16SLiad Kaufman /* Maybe there is no need to even alloc a queue... */ 2950cf961e16SLiad Kaufman if (mvm->queue_info[queue].status == IWL_MVM_QUEUE_READY) 2951cf961e16SLiad Kaufman alloc_queue = false; 2952cf961e16SLiad Kaufman 2953cf961e16SLiad Kaufman /* 2954cf961e16SLiad Kaufman * Only reconfig the SCD for the queue if the window size has 2955cf961e16SLiad Kaufman * changed from current (become smaller) 2956cf961e16SLiad Kaufman */ 29570ec9257bSSara Sharon if (!alloc_queue && buf_size < IWL_FRAME_LIMIT) { 2958cf961e16SLiad Kaufman /* 2959cf961e16SLiad Kaufman * If reconfiguring an existing queue, it first must be 2960cf961e16SLiad Kaufman * drained 2961cf961e16SLiad Kaufman */ 2962a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 2963cf961e16SLiad Kaufman BIT(queue)); 2964cf961e16SLiad Kaufman if (ret) { 2965cf961e16SLiad Kaufman IWL_ERR(mvm, 2966cf961e16SLiad Kaufman "Error draining queue before reconfig\n"); 2967cf961e16SLiad Kaufman return ret; 2968cf961e16SLiad Kaufman } 2969cf961e16SLiad Kaufman 2970cf961e16SLiad Kaufman ret = iwl_mvm_reconfig_scd(mvm, queue, cfg.fifo, 2971cf961e16SLiad Kaufman mvmsta->sta_id, tid, 2972cf961e16SLiad Kaufman buf_size, ssn); 2973cf961e16SLiad Kaufman if (ret) { 2974cf961e16SLiad Kaufman IWL_ERR(mvm, 2975cf961e16SLiad Kaufman "Error reconfiguring TXQ #%d\n", queue); 2976cf961e16SLiad Kaufman return ret; 2977cf961e16SLiad Kaufman } 2978cf961e16SLiad Kaufman } 2979cf961e16SLiad Kaufman 2980cf961e16SLiad Kaufman if (alloc_queue) 2981cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, queue, ssn, 2982cf961e16SLiad Kaufman &cfg, wdg_timeout); 2983e705c121SKalle Valo 29849f9af3d7SLiad Kaufman /* Send ADD_STA command to enable aggs only if the queue isn't shared */ 29859f9af3d7SLiad Kaufman if (queue_status != IWL_MVM_QUEUE_SHARED) { 2986e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 2987e705c121SKalle Valo if (ret) 2988e705c121SKalle Valo return -EIO; 29899f9af3d7SLiad Kaufman } 2990e705c121SKalle Valo 2991e705c121SKalle Valo /* No need to mark as reserved */ 2992cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 2993e705c121SKalle Valo 299434e10860SSara Sharon out: 2995e705c121SKalle Valo /* 2996e705c121SKalle Valo * Even though in theory the peer could have different 2997e705c121SKalle Valo * aggregation reorder buffer sizes for different sessions, 2998e705c121SKalle Valo * our ucode doesn't allow for that and has a global limit 2999e705c121SKalle Valo * for each station. Therefore, use the minimum of all the 3000e705c121SKalle Valo * aggregation sessions and our default value. 3001e705c121SKalle Valo */ 3002e705c121SKalle Valo mvmsta->max_agg_bufsize = 3003e705c121SKalle Valo min(mvmsta->max_agg_bufsize, buf_size); 3004ecaf71deSGregory Greenman mvmsta->lq_sta.rs_drv.lq.agg_frame_cnt_limit = mvmsta->max_agg_bufsize; 3005e705c121SKalle Valo 3006e705c121SKalle Valo IWL_DEBUG_HT(mvm, "Tx aggregation enabled on ra = %pM tid = %d\n", 3007e705c121SKalle Valo sta->addr, tid); 3008e705c121SKalle Valo 3009cd4d6b0bSGregory Greenman return iwl_mvm_send_lq_cmd(mvm, &mvmsta->lq_sta.rs_drv.lq); 3010e705c121SKalle Valo } 3011e705c121SKalle Valo 301234e10860SSara Sharon static void iwl_mvm_unreserve_agg_queue(struct iwl_mvm *mvm, 301334e10860SSara Sharon struct iwl_mvm_sta *mvmsta, 30144b387906SAvraham Stern struct iwl_mvm_tid_data *tid_data) 301534e10860SSara Sharon { 30164b387906SAvraham Stern u16 txq_id = tid_data->txq_id; 30174b387906SAvraham Stern 3018f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 3019f3f240f9SJohannes Berg 302034e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 302134e10860SSara Sharon return; 302234e10860SSara Sharon 302334e10860SSara Sharon /* 302434e10860SSara Sharon * The TXQ is marked as reserved only if no traffic came through yet 302534e10860SSara Sharon * This means no traffic has been sent on this TID (agg'd or not), so 302634e10860SSara Sharon * we no longer have use for the queue. Since it hasn't even been 302734e10860SSara Sharon * allocated through iwl_mvm_enable_txq, so we can just mark it back as 302834e10860SSara Sharon * free. 302934e10860SSara Sharon */ 30304b387906SAvraham Stern if (mvm->queue_info[txq_id].status == IWL_MVM_QUEUE_RESERVED) { 303134e10860SSara Sharon mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_FREE; 30324b387906SAvraham Stern tid_data->txq_id = IWL_MVM_INVALID_QUEUE; 30334b387906SAvraham Stern } 303434e10860SSara Sharon } 303534e10860SSara Sharon 3036e705c121SKalle Valo int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3037e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3038e705c121SKalle Valo { 3039e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3040e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3041e705c121SKalle Valo u16 txq_id; 3042e705c121SKalle Valo int err; 3043e705c121SKalle Valo 3044e705c121SKalle Valo /* 3045e705c121SKalle Valo * If mac80211 is cleaning its state, then say that we finished since 3046e705c121SKalle Valo * our state has been cleared anyway. 3047e705c121SKalle Valo */ 3048e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3049e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3050e705c121SKalle Valo return 0; 3051e705c121SKalle Valo } 3052e705c121SKalle Valo 3053e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3054e705c121SKalle Valo 3055e705c121SKalle Valo txq_id = tid_data->txq_id; 3056e705c121SKalle Valo 3057e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Stop AGG: sta %d tid %d q %d state %d\n", 3058e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 3059e705c121SKalle Valo 3060e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3061e705c121SKalle Valo 30624b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3063e705c121SKalle Valo 3064e705c121SKalle Valo switch (tid_data->state) { 3065e705c121SKalle Valo case IWL_AGG_ON: 3066e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3067e705c121SKalle Valo 3068e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 3069e705c121SKalle Valo "ssn = %d, next_recl = %d\n", 3070e705c121SKalle Valo tid_data->ssn, tid_data->next_reclaimed); 3071e705c121SKalle Valo 3072e705c121SKalle Valo tid_data->ssn = 0xffff; 3073e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3074e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3075e705c121SKalle Valo 3076e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3077e705c121SKalle Valo 3078e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3079e705c121SKalle Valo return 0; 3080e705c121SKalle Valo case IWL_AGG_STARTING: 3081e705c121SKalle Valo case IWL_EMPTYING_HW_QUEUE_ADDBA: 3082e705c121SKalle Valo /* 3083e705c121SKalle Valo * The agg session has been stopped before it was set up. This 3084e705c121SKalle Valo * can happen when the AddBA timer times out for example. 3085e705c121SKalle Valo */ 3086e705c121SKalle Valo 3087e705c121SKalle Valo /* No barriers since we are under mutex */ 3088e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3089e705c121SKalle Valo 3090e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3091e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3092e705c121SKalle Valo err = 0; 3093e705c121SKalle Valo break; 3094e705c121SKalle Valo default: 3095e705c121SKalle Valo IWL_ERR(mvm, 3096e705c121SKalle Valo "Stopping AGG while state not ON or starting for %d on %d (%d)\n", 3097e705c121SKalle Valo mvmsta->sta_id, tid, tid_data->state); 3098e705c121SKalle Valo IWL_ERR(mvm, 3099e705c121SKalle Valo "\ttid_data->txq_id = %d\n", tid_data->txq_id); 3100e705c121SKalle Valo err = -EINVAL; 3101e705c121SKalle Valo } 3102e705c121SKalle Valo 3103e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3104e705c121SKalle Valo 3105e705c121SKalle Valo return err; 3106e705c121SKalle Valo } 3107e705c121SKalle Valo 3108e705c121SKalle Valo int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3109e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3110e705c121SKalle Valo { 3111e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3112e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3113e705c121SKalle Valo u16 txq_id; 3114e705c121SKalle Valo enum iwl_mvm_agg_state old_state; 3115e705c121SKalle Valo 3116e705c121SKalle Valo /* 3117e705c121SKalle Valo * First set the agg state to OFF to avoid calling 3118e705c121SKalle Valo * ieee80211_stop_tx_ba_cb in iwl_mvm_check_ratid_empty. 3119e705c121SKalle Valo */ 3120e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3121e705c121SKalle Valo txq_id = tid_data->txq_id; 3122e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Flush AGG: sta %d tid %d q %d state %d\n", 3123e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 3124e705c121SKalle Valo old_state = tid_data->state; 3125e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3126e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3127e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3128e705c121SKalle Valo 31294b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3130e705c121SKalle Valo 3131e705c121SKalle Valo if (old_state >= IWL_AGG_ON) { 3132e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, true); 3133d167e81aSMordechai Goodstein 3134d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) { 3135d167e81aSMordechai Goodstein if (iwl_mvm_flush_sta_tids(mvm, mvmsta->sta_id, 3136d167e81aSMordechai Goodstein BIT(tid), 0)) 3137d167e81aSMordechai Goodstein IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 3138d167e81aSMordechai Goodstein iwl_trans_wait_txq_empty(mvm->trans, txq_id); 3139d167e81aSMordechai Goodstein } else { 3140e705c121SKalle Valo if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id), 0)) 3141e705c121SKalle Valo IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 31420b90964aSSara Sharon iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(txq_id)); 3143d167e81aSMordechai Goodstein } 3144d6d517b7SSara Sharon 3145e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, false); 3146e705c121SKalle Valo 3147e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3148e705c121SKalle Valo } 3149e705c121SKalle Valo 3150e705c121SKalle Valo return 0; 3151e705c121SKalle Valo } 3152e705c121SKalle Valo 3153e705c121SKalle Valo static int iwl_mvm_set_fw_key_idx(struct iwl_mvm *mvm) 3154e705c121SKalle Valo { 3155e705c121SKalle Valo int i, max = -1, max_offs = -1; 3156e705c121SKalle Valo 3157e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3158e705c121SKalle Valo 3159e705c121SKalle Valo /* Pick the unused key offset with the highest 'deleted' 3160e705c121SKalle Valo * counter. Every time a key is deleted, all the counters 3161e705c121SKalle Valo * are incremented and the one that was just deleted is 3162e705c121SKalle Valo * reset to zero. Thus, the highest counter is the one 3163e705c121SKalle Valo * that was deleted longest ago. Pick that one. 3164e705c121SKalle Valo */ 3165e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3166e705c121SKalle Valo if (test_bit(i, mvm->fw_key_table)) 3167e705c121SKalle Valo continue; 3168e705c121SKalle Valo if (mvm->fw_key_deleted[i] > max) { 3169e705c121SKalle Valo max = mvm->fw_key_deleted[i]; 3170e705c121SKalle Valo max_offs = i; 3171e705c121SKalle Valo } 3172e705c121SKalle Valo } 3173e705c121SKalle Valo 3174e705c121SKalle Valo if (max_offs < 0) 3175e705c121SKalle Valo return STA_KEY_IDX_INVALID; 3176e705c121SKalle Valo 3177e705c121SKalle Valo return max_offs; 3178e705c121SKalle Valo } 3179e705c121SKalle Valo 31805f7a1847SJohannes Berg static struct iwl_mvm_sta *iwl_mvm_get_key_sta(struct iwl_mvm *mvm, 31814615fd15SEmmanuel Grumbach struct ieee80211_vif *vif, 3182e705c121SKalle Valo struct ieee80211_sta *sta) 3183e705c121SKalle Valo { 3184e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3185e705c121SKalle Valo 31865f7a1847SJohannes Berg if (sta) 31875f7a1847SJohannes Berg return iwl_mvm_sta_from_mac80211(sta); 3188e705c121SKalle Valo 3189e705c121SKalle Valo /* 3190e705c121SKalle Valo * The device expects GTKs for station interfaces to be 3191e705c121SKalle Valo * installed as GTKs for the AP station. If we have no 3192e705c121SKalle Valo * station ID, then use AP's station ID. 3193e705c121SKalle Valo */ 3194e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 31950ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 31964615fd15SEmmanuel Grumbach u8 sta_id = mvmvif->ap_sta_id; 31974615fd15SEmmanuel Grumbach 31987d6a1ab6SEmmanuel Grumbach sta = rcu_dereference_check(mvm->fw_id_to_mac_id[sta_id], 31997d6a1ab6SEmmanuel Grumbach lockdep_is_held(&mvm->mutex)); 32007d6a1ab6SEmmanuel Grumbach 32014615fd15SEmmanuel Grumbach /* 32024615fd15SEmmanuel Grumbach * It is possible that the 'sta' parameter is NULL, 32034615fd15SEmmanuel Grumbach * for example when a GTK is removed - the sta_id will then 32044615fd15SEmmanuel Grumbach * be the AP ID, and no station was passed by mac80211. 32054615fd15SEmmanuel Grumbach */ 32067d6a1ab6SEmmanuel Grumbach if (IS_ERR_OR_NULL(sta)) 32077d6a1ab6SEmmanuel Grumbach return NULL; 32087d6a1ab6SEmmanuel Grumbach 32097d6a1ab6SEmmanuel Grumbach return iwl_mvm_sta_from_mac80211(sta); 32104615fd15SEmmanuel Grumbach } 3211e705c121SKalle Valo 32125f7a1847SJohannes Berg return NULL; 3213e705c121SKalle Valo } 3214e705c121SKalle Valo 3215e705c121SKalle Valo static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm, 321685aeb58cSDavid Spinadel u32 sta_id, 321745c458b4SSara Sharon struct ieee80211_key_conf *key, bool mcast, 32184615fd15SEmmanuel Grumbach u32 tkip_iv32, u16 *tkip_p1k, u32 cmd_flags, 32194883145aSEmmanuel Grumbach u8 key_offset, bool mfp) 3220e705c121SKalle Valo { 322145c458b4SSara Sharon union { 322245c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 322345c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd cmd; 322445c458b4SSara Sharon } u = {}; 3225e705c121SKalle Valo __le16 key_flags; 3226e705c121SKalle Valo int ret; 3227e705c121SKalle Valo u32 status; 3228e705c121SKalle Valo u16 keyidx; 322945c458b4SSara Sharon u64 pn = 0; 323045c458b4SSara Sharon int i, size; 323145c458b4SSara Sharon bool new_api = fw_has_api(&mvm->fw->ucode_capa, 323245c458b4SSara Sharon IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 3233e705c121SKalle Valo 323485aeb58cSDavid Spinadel if (sta_id == IWL_MVM_INVALID_STA) 323585aeb58cSDavid Spinadel return -EINVAL; 323685aeb58cSDavid Spinadel 323745c458b4SSara Sharon keyidx = (key->keyidx << STA_KEY_FLG_KEYID_POS) & 3238e705c121SKalle Valo STA_KEY_FLG_KEYID_MSK; 3239e705c121SKalle Valo key_flags = cpu_to_le16(keyidx); 3240e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_KEY_MAP); 3241e705c121SKalle Valo 324245c458b4SSara Sharon switch (key->cipher) { 3243e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 3244e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_TKIP); 324545c458b4SSara Sharon if (new_api) { 324645c458b4SSara Sharon memcpy((void *)&u.cmd.tx_mic_key, 324745c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], 324845c458b4SSara Sharon IWL_MIC_KEY_SIZE); 324945c458b4SSara Sharon 325045c458b4SSara Sharon memcpy((void *)&u.cmd.rx_mic_key, 325145c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], 325245c458b4SSara Sharon IWL_MIC_KEY_SIZE); 325345c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 325445c458b4SSara Sharon 325545c458b4SSara Sharon } else { 325645c458b4SSara Sharon u.cmd_v1.tkip_rx_tsc_byte2 = tkip_iv32; 3257e705c121SKalle Valo for (i = 0; i < 5; i++) 325845c458b4SSara Sharon u.cmd_v1.tkip_rx_ttak[i] = 325945c458b4SSara Sharon cpu_to_le16(tkip_p1k[i]); 326045c458b4SSara Sharon } 326145c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3262e705c121SKalle Valo break; 3263e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 3264e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_CCM); 326545c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 326645c458b4SSara Sharon if (new_api) 326745c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 3268e705c121SKalle Valo break; 3269e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 3270e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_13BYTES); 3271e705c121SKalle Valo /* fall through */ 3272e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 3273e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP); 327445c458b4SSara Sharon memcpy(u.cmd.common.key + 3, key->key, key->keylen); 3275e705c121SKalle Valo break; 32762a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 32772a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_KEY_32BYTES); 32782a53d166SAyala Beker /* fall through */ 32792a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 32802a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_GCMP); 328145c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 328245c458b4SSara Sharon if (new_api) 328345c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 32842a53d166SAyala Beker break; 3285e705c121SKalle Valo default: 3286e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_EXT); 328745c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3288e705c121SKalle Valo } 3289e705c121SKalle Valo 3290e705c121SKalle Valo if (mcast) 3291e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 32924883145aSEmmanuel Grumbach if (mfp) 32934883145aSEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MFP); 3294e705c121SKalle Valo 329545c458b4SSara Sharon u.cmd.common.key_offset = key_offset; 329645c458b4SSara Sharon u.cmd.common.key_flags = key_flags; 329785aeb58cSDavid Spinadel u.cmd.common.sta_id = sta_id; 329845c458b4SSara Sharon 329945c458b4SSara Sharon if (new_api) { 330045c458b4SSara Sharon u.cmd.transmit_seq_cnt = cpu_to_le64(pn); 330145c458b4SSara Sharon size = sizeof(u.cmd); 330245c458b4SSara Sharon } else { 330345c458b4SSara Sharon size = sizeof(u.cmd_v1); 330445c458b4SSara Sharon } 3305e705c121SKalle Valo 3306e705c121SKalle Valo status = ADD_STA_SUCCESS; 3307e705c121SKalle Valo if (cmd_flags & CMD_ASYNC) 330845c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA_KEY, CMD_ASYNC, size, 330945c458b4SSara Sharon &u.cmd); 3310e705c121SKalle Valo else 331145c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, 331245c458b4SSara Sharon &u.cmd, &status); 3313e705c121SKalle Valo 3314e705c121SKalle Valo switch (status) { 3315e705c121SKalle Valo case ADD_STA_SUCCESS: 3316e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "MODIFY_STA: set dynamic key passed\n"); 3317e705c121SKalle Valo break; 3318e705c121SKalle Valo default: 3319e705c121SKalle Valo ret = -EIO; 3320e705c121SKalle Valo IWL_ERR(mvm, "MODIFY_STA: set dynamic key failed\n"); 3321e705c121SKalle Valo break; 3322e705c121SKalle Valo } 3323e705c121SKalle Valo 3324e705c121SKalle Valo return ret; 3325e705c121SKalle Valo } 3326e705c121SKalle Valo 3327e705c121SKalle Valo static int iwl_mvm_send_sta_igtk(struct iwl_mvm *mvm, 3328e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3329e705c121SKalle Valo u8 sta_id, bool remove_key) 3330e705c121SKalle Valo { 3331e705c121SKalle Valo struct iwl_mvm_mgmt_mcast_key_cmd igtk_cmd = {}; 3332e705c121SKalle Valo 3333e705c121SKalle Valo /* verify the key details match the required command's expectations */ 33348e160ab8SAyala Beker if (WARN_ON((keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) || 33358e160ab8SAyala Beker (keyconf->keyidx != 4 && keyconf->keyidx != 5) || 33368e160ab8SAyala Beker (keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC && 33378e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_128 && 33388e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_256))) 33398e160ab8SAyala Beker return -EINVAL; 33408e160ab8SAyala Beker 33418e160ab8SAyala Beker if (WARN_ON(!iwl_mvm_has_new_rx_api(mvm) && 33428e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC)) 3343e705c121SKalle Valo return -EINVAL; 3344e705c121SKalle Valo 3345e705c121SKalle Valo igtk_cmd.key_id = cpu_to_le32(keyconf->keyidx); 3346e705c121SKalle Valo igtk_cmd.sta_id = cpu_to_le32(sta_id); 3347e705c121SKalle Valo 3348e705c121SKalle Valo if (remove_key) { 3349197288d5SLuca Coelho /* This is a valid situation for IGTK */ 3350197288d5SLuca Coelho if (sta_id == IWL_MVM_INVALID_STA) 3351197288d5SLuca Coelho return 0; 3352197288d5SLuca Coelho 3353e705c121SKalle Valo igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_NOT_VALID); 3354e705c121SKalle Valo } else { 3355e705c121SKalle Valo struct ieee80211_key_seq seq; 3356e705c121SKalle Valo const u8 *pn; 3357e705c121SKalle Valo 3358aa950524SAyala Beker switch (keyconf->cipher) { 3359aa950524SAyala Beker case WLAN_CIPHER_SUITE_AES_CMAC: 3360aa950524SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_CCM); 3361aa950524SAyala Beker break; 33628e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_128: 33638e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_256: 33648e160ab8SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_GCMP); 33658e160ab8SAyala Beker break; 3366aa950524SAyala Beker default: 3367aa950524SAyala Beker return -EINVAL; 3368aa950524SAyala Beker } 3369aa950524SAyala Beker 33708e160ab8SAyala Beker memcpy(igtk_cmd.igtk, keyconf->key, keyconf->keylen); 33718e160ab8SAyala Beker if (keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 33728e160ab8SAyala Beker igtk_cmd.ctrl_flags |= 33738e160ab8SAyala Beker cpu_to_le32(STA_KEY_FLG_KEY_32BYTES); 3374e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3375e705c121SKalle Valo pn = seq.aes_cmac.pn; 3376e705c121SKalle Valo igtk_cmd.receive_seq_cnt = cpu_to_le64(((u64) pn[5] << 0) | 3377e705c121SKalle Valo ((u64) pn[4] << 8) | 3378e705c121SKalle Valo ((u64) pn[3] << 16) | 3379e705c121SKalle Valo ((u64) pn[2] << 24) | 3380e705c121SKalle Valo ((u64) pn[1] << 32) | 3381e705c121SKalle Valo ((u64) pn[0] << 40)); 3382e705c121SKalle Valo } 3383e705c121SKalle Valo 3384e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "%s igtk for sta %u\n", 3385e705c121SKalle Valo remove_key ? "removing" : "installing", 3386e705c121SKalle Valo igtk_cmd.sta_id); 3387e705c121SKalle Valo 33888e160ab8SAyala Beker if (!iwl_mvm_has_new_rx_api(mvm)) { 33898e160ab8SAyala Beker struct iwl_mvm_mgmt_mcast_key_cmd_v1 igtk_cmd_v1 = { 33908e160ab8SAyala Beker .ctrl_flags = igtk_cmd.ctrl_flags, 33918e160ab8SAyala Beker .key_id = igtk_cmd.key_id, 33928e160ab8SAyala Beker .sta_id = igtk_cmd.sta_id, 33938e160ab8SAyala Beker .receive_seq_cnt = igtk_cmd.receive_seq_cnt 33948e160ab8SAyala Beker }; 33958e160ab8SAyala Beker 33968e160ab8SAyala Beker memcpy(igtk_cmd_v1.igtk, igtk_cmd.igtk, 33978e160ab8SAyala Beker ARRAY_SIZE(igtk_cmd_v1.igtk)); 33988e160ab8SAyala Beker return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 33998e160ab8SAyala Beker sizeof(igtk_cmd_v1), &igtk_cmd_v1); 34008e160ab8SAyala Beker } 3401e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 3402e705c121SKalle Valo sizeof(igtk_cmd), &igtk_cmd); 3403e705c121SKalle Valo } 3404e705c121SKalle Valo 3405e705c121SKalle Valo 3406e705c121SKalle Valo static inline u8 *iwl_mvm_get_mac_addr(struct iwl_mvm *mvm, 3407e705c121SKalle Valo struct ieee80211_vif *vif, 3408e705c121SKalle Valo struct ieee80211_sta *sta) 3409e705c121SKalle Valo { 3410e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3411e705c121SKalle Valo 3412e705c121SKalle Valo if (sta) 3413e705c121SKalle Valo return sta->addr; 3414e705c121SKalle Valo 3415e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 34160ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 3417e705c121SKalle Valo u8 sta_id = mvmvif->ap_sta_id; 3418e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 3419e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3420e705c121SKalle Valo return sta->addr; 3421e705c121SKalle Valo } 3422e705c121SKalle Valo 3423e705c121SKalle Valo 3424e705c121SKalle Valo return NULL; 3425e705c121SKalle Valo } 3426e705c121SKalle Valo 3427e705c121SKalle Valo static int __iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3428e705c121SKalle Valo struct ieee80211_vif *vif, 3429e705c121SKalle Valo struct ieee80211_sta *sta, 3430e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 34314615fd15SEmmanuel Grumbach u8 key_offset, 3432e705c121SKalle Valo bool mcast) 3433e705c121SKalle Valo { 3434e705c121SKalle Valo int ret; 3435e705c121SKalle Valo const u8 *addr; 3436e705c121SKalle Valo struct ieee80211_key_seq seq; 3437e705c121SKalle Valo u16 p1k[5]; 343885aeb58cSDavid Spinadel u32 sta_id; 34394883145aSEmmanuel Grumbach bool mfp = false; 344085aeb58cSDavid Spinadel 344185aeb58cSDavid Spinadel if (sta) { 344285aeb58cSDavid Spinadel struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 344385aeb58cSDavid Spinadel 344485aeb58cSDavid Spinadel sta_id = mvm_sta->sta_id; 34454883145aSEmmanuel Grumbach mfp = sta->mfp; 344685aeb58cSDavid Spinadel } else if (vif->type == NL80211_IFTYPE_AP && 344785aeb58cSDavid Spinadel !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { 344885aeb58cSDavid Spinadel struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 344985aeb58cSDavid Spinadel 345085aeb58cSDavid Spinadel sta_id = mvmvif->mcast_sta.sta_id; 345185aeb58cSDavid Spinadel } else { 345285aeb58cSDavid Spinadel IWL_ERR(mvm, "Failed to find station id\n"); 345385aeb58cSDavid Spinadel return -EINVAL; 345485aeb58cSDavid Spinadel } 3455e705c121SKalle Valo 3456e705c121SKalle Valo switch (keyconf->cipher) { 3457e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 3458e705c121SKalle Valo addr = iwl_mvm_get_mac_addr(mvm, vif, sta); 3459e705c121SKalle Valo /* get phase 1 key from mac80211 */ 3460e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3461e705c121SKalle Valo ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k); 346285aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 34634883145aSEmmanuel Grumbach seq.tkip.iv32, p1k, 0, key_offset, 34644883145aSEmmanuel Grumbach mfp); 3465e705c121SKalle Valo break; 3466e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 3467e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 3468e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 34692a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 34702a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 347185aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 34724883145aSEmmanuel Grumbach 0, NULL, 0, key_offset, mfp); 3473e705c121SKalle Valo break; 3474e705c121SKalle Valo default: 347585aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 34764883145aSEmmanuel Grumbach 0, NULL, 0, key_offset, mfp); 3477e705c121SKalle Valo } 3478e705c121SKalle Valo 3479e705c121SKalle Valo return ret; 3480e705c121SKalle Valo } 3481e705c121SKalle Valo 3482e705c121SKalle Valo int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3483e705c121SKalle Valo struct ieee80211_vif *vif, 3484e705c121SKalle Valo struct ieee80211_sta *sta, 3485e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 34864615fd15SEmmanuel Grumbach u8 key_offset) 3487e705c121SKalle Valo { 3488e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 34895f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 349085aeb58cSDavid Spinadel u8 sta_id = IWL_MVM_INVALID_STA; 3491e705c121SKalle Valo int ret; 3492e705c121SKalle Valo static const u8 __maybe_unused zero_addr[ETH_ALEN] = {0}; 3493e705c121SKalle Valo 3494e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3495e705c121SKalle Valo 349685aeb58cSDavid Spinadel if (vif->type != NL80211_IFTYPE_AP || 349785aeb58cSDavid Spinadel keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) { 3498e705c121SKalle Valo /* Get the station id from the mvm local station table */ 34995f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 35005f7a1847SJohannes Berg if (!mvm_sta) { 35015f7a1847SJohannes Berg IWL_ERR(mvm, "Failed to find station\n"); 3502e705c121SKalle Valo return -EINVAL; 3503e705c121SKalle Valo } 35045f7a1847SJohannes Berg sta_id = mvm_sta->sta_id; 3505e705c121SKalle Valo 3506e705c121SKalle Valo /* 3507e705c121SKalle Valo * It is possible that the 'sta' parameter is NULL, and thus 350885aeb58cSDavid Spinadel * there is a need to retrieve the sta from the local station 350985aeb58cSDavid Spinadel * table. 3510e705c121SKalle Valo */ 3511e705c121SKalle Valo if (!sta) { 351285aeb58cSDavid Spinadel sta = rcu_dereference_protected( 351385aeb58cSDavid Spinadel mvm->fw_id_to_mac_id[sta_id], 3514e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3515e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) { 3516e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 3517e705c121SKalle Valo return -EINVAL; 3518e705c121SKalle Valo } 3519e705c121SKalle Valo } 3520e705c121SKalle Valo 3521e705c121SKalle Valo if (WARN_ON_ONCE(iwl_mvm_sta_from_mac80211(sta)->vif != vif)) 3522e705c121SKalle Valo return -EINVAL; 3523e829b17cSBeni Lev } else { 3524e829b17cSBeni Lev struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3525e829b17cSBeni Lev 3526e829b17cSBeni Lev sta_id = mvmvif->mcast_sta.sta_id; 3527e829b17cSBeni Lev } 3528e829b17cSBeni Lev 3529e829b17cSBeni Lev if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3530e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3531e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) { 3532e829b17cSBeni Lev ret = iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, false); 3533e829b17cSBeni Lev goto end; 353485aeb58cSDavid Spinadel } 3535e705c121SKalle Valo 35364615fd15SEmmanuel Grumbach /* If the key_offset is not pre-assigned, we need to find a 35374615fd15SEmmanuel Grumbach * new offset to use. In normal cases, the offset is not 35384615fd15SEmmanuel Grumbach * pre-assigned, but during HW_RESTART we want to reuse the 35394615fd15SEmmanuel Grumbach * same indices, so we pass them when this function is called. 35404615fd15SEmmanuel Grumbach * 35414615fd15SEmmanuel Grumbach * In D3 entry, we need to hardcoded the indices (because the 35424615fd15SEmmanuel Grumbach * firmware hardcodes the PTK offset to 0). In this case, we 35434615fd15SEmmanuel Grumbach * need to make sure we don't overwrite the hw_key_idx in the 35444615fd15SEmmanuel Grumbach * keyconf structure, because otherwise we cannot configure 35454615fd15SEmmanuel Grumbach * the original ones back when resuming. 3546e705c121SKalle Valo */ 35474615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) { 35484615fd15SEmmanuel Grumbach key_offset = iwl_mvm_set_fw_key_idx(mvm); 35494615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) 3550e705c121SKalle Valo return -ENOSPC; 35514615fd15SEmmanuel Grumbach keyconf->hw_key_idx = key_offset; 3552e705c121SKalle Valo } 3553e705c121SKalle Valo 35544615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, key_offset, mcast); 35559c3deeb5SLuca Coelho if (ret) 3556e705c121SKalle Valo goto end; 3557e705c121SKalle Valo 3558e705c121SKalle Valo /* 3559e705c121SKalle Valo * For WEP, the same key is used for multicast and unicast. Upload it 3560e705c121SKalle Valo * again, using the same key offset, and now pointing the other one 3561e705c121SKalle Valo * to the same key slot (offset). 3562e705c121SKalle Valo * If this fails, remove the original as well. 3563e705c121SKalle Valo */ 356485aeb58cSDavid Spinadel if ((keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 356585aeb58cSDavid Spinadel keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) && 356685aeb58cSDavid Spinadel sta) { 35674615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, 35684615fd15SEmmanuel Grumbach key_offset, !mcast); 3569e705c121SKalle Valo if (ret) { 3570e705c121SKalle Valo __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 35719c3deeb5SLuca Coelho goto end; 3572e705c121SKalle Valo } 3573e705c121SKalle Valo } 3574e705c121SKalle Valo 35759c3deeb5SLuca Coelho __set_bit(key_offset, mvm->fw_key_table); 35769c3deeb5SLuca Coelho 3577e705c121SKalle Valo end: 3578e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "key: cipher=%x len=%d idx=%d sta=%pM ret=%d\n", 3579e705c121SKalle Valo keyconf->cipher, keyconf->keylen, keyconf->keyidx, 3580e705c121SKalle Valo sta ? sta->addr : zero_addr, ret); 3581e705c121SKalle Valo return ret; 3582e705c121SKalle Valo } 3583e705c121SKalle Valo 3584e705c121SKalle Valo int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, 3585e705c121SKalle Valo struct ieee80211_vif *vif, 3586e705c121SKalle Valo struct ieee80211_sta *sta, 3587e705c121SKalle Valo struct ieee80211_key_conf *keyconf) 3588e705c121SKalle Valo { 3589e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 35905f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 35910ae98812SSara Sharon u8 sta_id = IWL_MVM_INVALID_STA; 3592e705c121SKalle Valo int ret, i; 3593e705c121SKalle Valo 3594e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3595e705c121SKalle Valo 35965f7a1847SJohannes Berg /* Get the station from the mvm local station table */ 35975f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 359871793b7dSLuca Coelho if (mvm_sta) 3599cd4d23c1SIlan Peer sta_id = mvm_sta->sta_id; 360085aeb58cSDavid Spinadel else if (!sta && vif->type == NL80211_IFTYPE_AP && mcast) 360185aeb58cSDavid Spinadel sta_id = iwl_mvm_vif_from_mac80211(vif)->mcast_sta.sta_id; 360285aeb58cSDavid Spinadel 3603e705c121SKalle Valo 3604e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "mvm remove dynamic key: idx=%d sta=%d\n", 3605e705c121SKalle Valo keyconf->keyidx, sta_id); 3606e705c121SKalle Valo 3607197288d5SLuca Coelho if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 36088e160ab8SAyala Beker keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3609197288d5SLuca Coelho keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 3610e705c121SKalle Valo return iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, true); 3611e705c121SKalle Valo 3612e705c121SKalle Valo if (!__test_and_clear_bit(keyconf->hw_key_idx, mvm->fw_key_table)) { 3613e705c121SKalle Valo IWL_ERR(mvm, "offset %d not used in fw key table.\n", 3614e705c121SKalle Valo keyconf->hw_key_idx); 3615e705c121SKalle Valo return -ENOENT; 3616e705c121SKalle Valo } 3617e705c121SKalle Valo 3618e705c121SKalle Valo /* track which key was deleted last */ 3619e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3620e705c121SKalle Valo if (mvm->fw_key_deleted[i] < U8_MAX) 3621e705c121SKalle Valo mvm->fw_key_deleted[i]++; 3622e705c121SKalle Valo } 3623e705c121SKalle Valo mvm->fw_key_deleted[keyconf->hw_key_idx] = 0; 3624e705c121SKalle Valo 362585aeb58cSDavid Spinadel if (sta && !mvm_sta) { 3626e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "station non-existent, early return.\n"); 3627e705c121SKalle Valo return 0; 3628e705c121SKalle Valo } 3629e705c121SKalle Valo 3630e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 3631e705c121SKalle Valo if (ret) 3632e705c121SKalle Valo return ret; 3633e705c121SKalle Valo 3634e705c121SKalle Valo /* delete WEP key twice to get rid of (now useless) offset */ 3635e705c121SKalle Valo if (keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 3636e705c121SKalle Valo keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) 3637e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, !mcast); 3638e705c121SKalle Valo 3639e705c121SKalle Valo return ret; 3640e705c121SKalle Valo } 3641e705c121SKalle Valo 3642e705c121SKalle Valo void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, 3643e705c121SKalle Valo struct ieee80211_vif *vif, 3644e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3645e705c121SKalle Valo struct ieee80211_sta *sta, u32 iv32, 3646e705c121SKalle Valo u16 *phase1key) 3647e705c121SKalle Valo { 3648e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3649e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 36504883145aSEmmanuel Grumbach bool mfp = sta ? sta->mfp : false; 3651e705c121SKalle Valo 3652e705c121SKalle Valo rcu_read_lock(); 3653e705c121SKalle Valo 36545f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 36555f7a1847SJohannes Berg if (WARN_ON_ONCE(!mvm_sta)) 365612f17211SEmmanuel Grumbach goto unlock; 365785aeb58cSDavid Spinadel iwl_mvm_send_sta_key(mvm, mvm_sta->sta_id, keyconf, mcast, 36584883145aSEmmanuel Grumbach iv32, phase1key, CMD_ASYNC, keyconf->hw_key_idx, 36594883145aSEmmanuel Grumbach mfp); 366012f17211SEmmanuel Grumbach 366112f17211SEmmanuel Grumbach unlock: 3662e705c121SKalle Valo rcu_read_unlock(); 3663e705c121SKalle Valo } 3664e705c121SKalle Valo 3665e705c121SKalle Valo void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, 3666e705c121SKalle Valo struct ieee80211_sta *sta) 3667e705c121SKalle Valo { 3668e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3669e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3670e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3671e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3672e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_PS), 3673e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3674e705c121SKalle Valo }; 3675e705c121SKalle Valo int ret; 3676e705c121SKalle Valo 3677854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3678854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3679e705c121SKalle Valo if (ret) 3680e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3681e705c121SKalle Valo } 3682e705c121SKalle Valo 3683e705c121SKalle Valo void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, 3684e705c121SKalle Valo struct ieee80211_sta *sta, 3685e705c121SKalle Valo enum ieee80211_frame_release_type reason, 3686e705c121SKalle Valo u16 cnt, u16 tids, bool more_data, 36879a3fcf91SSara Sharon bool single_sta_queue) 3688e705c121SKalle Valo { 3689e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3690e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3691e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3692e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3693e705c121SKalle Valo .modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT, 3694e705c121SKalle Valo .sleep_tx_count = cpu_to_le16(cnt), 3695e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3696e705c121SKalle Valo }; 3697e705c121SKalle Valo int tid, ret; 3698e705c121SKalle Valo unsigned long _tids = tids; 3699e705c121SKalle Valo 3700e705c121SKalle Valo /* convert TIDs to ACs - we don't support TSPEC so that's OK 3701e705c121SKalle Valo * Note that this field is reserved and unused by firmware not 3702e705c121SKalle Valo * supporting GO uAPSD, so it's safe to always do this. 3703e705c121SKalle Valo */ 3704e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) 3705e705c121SKalle Valo cmd.awake_acs |= BIT(tid_to_ucode_ac[tid]); 3706e705c121SKalle Valo 37079a3fcf91SSara Sharon /* If we're releasing frames from aggregation or dqa queues then check 37089a3fcf91SSara Sharon * if all the queues that we're releasing frames from, combined, have: 3709e705c121SKalle Valo * - more frames than the service period, in which case more_data 3710e705c121SKalle Valo * needs to be set 3711e705c121SKalle Valo * - fewer than 'cnt' frames, in which case we need to adjust the 3712e705c121SKalle Valo * firmware command (but do that unconditionally) 3713e705c121SKalle Valo */ 37149a3fcf91SSara Sharon if (single_sta_queue) { 3715e705c121SKalle Valo int remaining = cnt; 371636be0eb6SEmmanuel Grumbach int sleep_tx_count; 3717e705c121SKalle Valo 3718e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3719e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) { 3720e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 3721e705c121SKalle Valo u16 n_queued; 3722e705c121SKalle Valo 3723e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 3724e705c121SKalle Valo 3725dd32162dSLiad Kaufman n_queued = iwl_mvm_tid_queued(mvm, tid_data); 3726e705c121SKalle Valo if (n_queued > remaining) { 3727e705c121SKalle Valo more_data = true; 3728e705c121SKalle Valo remaining = 0; 3729e705c121SKalle Valo break; 3730e705c121SKalle Valo } 3731e705c121SKalle Valo remaining -= n_queued; 3732e705c121SKalle Valo } 373336be0eb6SEmmanuel Grumbach sleep_tx_count = cnt - remaining; 373436be0eb6SEmmanuel Grumbach if (reason == IEEE80211_FRAME_RELEASE_UAPSD) 373536be0eb6SEmmanuel Grumbach mvmsta->sleep_tx_count = sleep_tx_count; 3736e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3737e705c121SKalle Valo 373836be0eb6SEmmanuel Grumbach cmd.sleep_tx_count = cpu_to_le16(sleep_tx_count); 3739e705c121SKalle Valo if (WARN_ON(cnt - remaining == 0)) { 3740e705c121SKalle Valo ieee80211_sta_eosp(sta); 3741e705c121SKalle Valo return; 3742e705c121SKalle Valo } 3743e705c121SKalle Valo } 3744e705c121SKalle Valo 3745e705c121SKalle Valo /* Note: this is ignored by firmware not supporting GO uAPSD */ 3746e705c121SKalle Valo if (more_data) 3747ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_MOREDATA; 3748e705c121SKalle Valo 3749e705c121SKalle Valo if (reason == IEEE80211_FRAME_RELEASE_PSPOLL) { 3750e705c121SKalle Valo mvmsta->next_status_eosp = true; 3751ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_PS_POLL; 3752e705c121SKalle Valo } else { 3753ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_UAPSD; 3754e705c121SKalle Valo } 3755e705c121SKalle Valo 3756156f92f2SEmmanuel Grumbach /* block the Tx queues until the FW updated the sleep Tx count */ 3757156f92f2SEmmanuel Grumbach iwl_trans_block_txq_ptrs(mvm->trans, true); 3758156f92f2SEmmanuel Grumbach 3759156f92f2SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 3760156f92f2SEmmanuel Grumbach CMD_ASYNC | CMD_WANT_ASYNC_CALLBACK, 3761854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3762e705c121SKalle Valo if (ret) 3763e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3764e705c121SKalle Valo } 3765e705c121SKalle Valo 3766e705c121SKalle Valo void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm, 3767e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 3768e705c121SKalle Valo { 3769e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 3770e705c121SKalle Valo struct iwl_mvm_eosp_notification *notif = (void *)pkt->data; 3771e705c121SKalle Valo struct ieee80211_sta *sta; 3772e705c121SKalle Valo u32 sta_id = le32_to_cpu(notif->sta_id); 3773e705c121SKalle Valo 3774be9ae34eSNathan Errera if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 3775e705c121SKalle Valo return; 3776e705c121SKalle Valo 3777e705c121SKalle Valo rcu_read_lock(); 3778e705c121SKalle Valo sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 3779e705c121SKalle Valo if (!IS_ERR_OR_NULL(sta)) 3780e705c121SKalle Valo ieee80211_sta_eosp(sta); 3781e705c121SKalle Valo rcu_read_unlock(); 3782e705c121SKalle Valo } 3783e705c121SKalle Valo 3784e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm, 3785e705c121SKalle Valo struct iwl_mvm_sta *mvmsta, bool disable) 3786e705c121SKalle Valo { 3787e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3788e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3789e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3790e705c121SKalle Valo .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 3791e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 3792e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3793e705c121SKalle Valo }; 3794e705c121SKalle Valo int ret; 3795e705c121SKalle Valo 3796854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3797854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3798e705c121SKalle Valo if (ret) 3799e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3800e705c121SKalle Valo } 3801e705c121SKalle Valo 3802e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm, 3803e705c121SKalle Valo struct ieee80211_sta *sta, 3804e705c121SKalle Valo bool disable) 3805e705c121SKalle Valo { 3806e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3807e705c121SKalle Valo 3808e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 3809e705c121SKalle Valo 3810e705c121SKalle Valo if (mvm_sta->disable_tx == disable) { 3811e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 3812e705c121SKalle Valo return; 3813e705c121SKalle Valo } 3814e705c121SKalle Valo 3815e705c121SKalle Valo mvm_sta->disable_tx = disable; 3816e705c121SKalle Valo 3817c8f54701SJohannes Berg /* Tell mac80211 to start/stop queuing tx for this station */ 3818e705c121SKalle Valo ieee80211_sta_block_awake(mvm->hw, sta, disable); 3819e705c121SKalle Valo 3820e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvm_sta, disable); 3821e705c121SKalle Valo 3822e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 3823e705c121SKalle Valo } 3824e705c121SKalle Valo 3825ced19f26SSara Sharon static void iwl_mvm_int_sta_modify_disable_tx(struct iwl_mvm *mvm, 3826ced19f26SSara Sharon struct iwl_mvm_vif *mvmvif, 3827ced19f26SSara Sharon struct iwl_mvm_int_sta *sta, 3828ced19f26SSara Sharon bool disable) 3829ced19f26SSara Sharon { 3830ced19f26SSara Sharon u32 id = FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color); 3831ced19f26SSara Sharon struct iwl_mvm_add_sta_cmd cmd = { 3832ced19f26SSara Sharon .add_modify = STA_MODE_MODIFY, 3833ced19f26SSara Sharon .sta_id = sta->sta_id, 3834ced19f26SSara Sharon .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 3835ced19f26SSara Sharon .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 3836ced19f26SSara Sharon .mac_id_n_color = cpu_to_le32(id), 3837ced19f26SSara Sharon }; 3838ced19f26SSara Sharon int ret; 3839ced19f26SSara Sharon 3840ced19f26SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 0, 3841ced19f26SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3842ced19f26SSara Sharon if (ret) 3843ced19f26SSara Sharon IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3844ced19f26SSara Sharon } 3845ced19f26SSara Sharon 3846e705c121SKalle Valo void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm, 3847e705c121SKalle Valo struct iwl_mvm_vif *mvmvif, 3848e705c121SKalle Valo bool disable) 3849e705c121SKalle Valo { 3850e705c121SKalle Valo struct ieee80211_sta *sta; 3851e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3852e705c121SKalle Valo int i; 3853e705c121SKalle Valo 3854e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3855e705c121SKalle Valo 3856e705c121SKalle Valo /* Block/unblock all the stations of the given mvmvif */ 3857be9ae34eSNathan Errera for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 3858e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 3859e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3860e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) 3861e705c121SKalle Valo continue; 3862e705c121SKalle Valo 3863e705c121SKalle Valo mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3864e705c121SKalle Valo if (mvm_sta->mac_id_n_color != 3865e705c121SKalle Valo FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)) 3866e705c121SKalle Valo continue; 3867e705c121SKalle Valo 3868e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx_ap(mvm, sta, disable); 3869e705c121SKalle Valo } 3870ced19f26SSara Sharon 3871ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3872ced19f26SSara Sharon return; 3873ced19f26SSara Sharon 3874ced19f26SSara Sharon /* Need to block/unblock also multicast station */ 3875ced19f26SSara Sharon if (mvmvif->mcast_sta.sta_id != IWL_MVM_INVALID_STA) 3876ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 3877ced19f26SSara Sharon &mvmvif->mcast_sta, disable); 3878ced19f26SSara Sharon 3879ced19f26SSara Sharon /* 3880ced19f26SSara Sharon * Only unblock the broadcast station (FW blocks it for immediate 3881ced19f26SSara Sharon * quiet, not the driver) 3882ced19f26SSara Sharon */ 3883ced19f26SSara Sharon if (!disable && mvmvif->bcast_sta.sta_id != IWL_MVM_INVALID_STA) 3884ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 3885ced19f26SSara Sharon &mvmvif->bcast_sta, disable); 3886e705c121SKalle Valo } 3887e705c121SKalle Valo 3888e705c121SKalle Valo void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 3889e705c121SKalle Valo { 3890e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3891e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 3892e705c121SKalle Valo 3893e705c121SKalle Valo rcu_read_lock(); 3894e705c121SKalle Valo 3895e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->ap_sta_id); 3896e705c121SKalle Valo 3897e705c121SKalle Valo if (!WARN_ON(!mvmsta)) 3898e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true); 3899e705c121SKalle Valo 3900e705c121SKalle Valo rcu_read_unlock(); 3901e705c121SKalle Valo } 3902dd32162dSLiad Kaufman 3903dd32162dSLiad Kaufman u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data) 3904dd32162dSLiad Kaufman { 3905dd32162dSLiad Kaufman u16 sn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3906dd32162dSLiad Kaufman 3907dd32162dSLiad Kaufman /* 39082f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 3909dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 3910dd32162dSLiad Kaufman */ 3911286ca8ebSLuca Coelho if (mvm->trans->trans_cfg->gen2) 3912dd32162dSLiad Kaufman sn &= 0xff; 3913dd32162dSLiad Kaufman 3914dd32162dSLiad Kaufman return ieee80211_sn_sub(sn, tid_data->next_reclaimed); 3915dd32162dSLiad Kaufman } 3916be82ecd3SAvraham Stern 3917be82ecd3SAvraham Stern int iwl_mvm_add_pasn_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3918be82ecd3SAvraham Stern struct iwl_mvm_int_sta *sta, u8 *addr, u32 cipher, 3919be82ecd3SAvraham Stern u8 *key, u32 key_len) 3920be82ecd3SAvraham Stern { 3921be82ecd3SAvraham Stern int ret; 3922be82ecd3SAvraham Stern u16 queue; 3923be82ecd3SAvraham Stern struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3924be82ecd3SAvraham Stern struct ieee80211_key_conf *keyconf; 3925be82ecd3SAvraham Stern 3926be82ecd3SAvraham Stern ret = iwl_mvm_allocate_int_sta(mvm, sta, 0, 3927be82ecd3SAvraham Stern NL80211_IFTYPE_UNSPECIFIED, 3928be82ecd3SAvraham Stern IWL_STA_LINK); 3929be82ecd3SAvraham Stern if (ret) 3930be82ecd3SAvraham Stern return ret; 3931be82ecd3SAvraham Stern 3932be82ecd3SAvraham Stern ret = iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id, mvmvif->color, 3933be82ecd3SAvraham Stern addr, sta, &queue, 3934be82ecd3SAvraham Stern IWL_MVM_TX_FIFO_BE); 3935be82ecd3SAvraham Stern if (ret) 3936be82ecd3SAvraham Stern goto out; 3937be82ecd3SAvraham Stern 3938be82ecd3SAvraham Stern keyconf = kzalloc(sizeof(*keyconf) + key_len, GFP_KERNEL); 3939be82ecd3SAvraham Stern if (!keyconf) { 3940be82ecd3SAvraham Stern ret = -ENOBUFS; 3941be82ecd3SAvraham Stern goto out; 3942be82ecd3SAvraham Stern } 3943be82ecd3SAvraham Stern 3944be82ecd3SAvraham Stern keyconf->cipher = cipher; 3945be82ecd3SAvraham Stern memcpy(keyconf->key, key, key_len); 3946be82ecd3SAvraham Stern keyconf->keylen = key_len; 3947be82ecd3SAvraham Stern 3948be82ecd3SAvraham Stern ret = iwl_mvm_send_sta_key(mvm, sta->sta_id, keyconf, false, 3949be82ecd3SAvraham Stern 0, NULL, 0, 0, true); 3950be82ecd3SAvraham Stern kfree(keyconf); 3951be82ecd3SAvraham Stern return 0; 3952be82ecd3SAvraham Stern out: 3953be82ecd3SAvraham Stern iwl_mvm_dealloc_int_sta(mvm, sta); 3954be82ecd3SAvraham Stern return ret; 3955be82ecd3SAvraham Stern } 3956