1e705c121SKalle Valo /****************************************************************************** 2e705c121SKalle Valo * 3e705c121SKalle Valo * This file is provided under a dual BSD/GPLv2 license. When using or 4e705c121SKalle Valo * redistributing this file, you may do so under either license. 5e705c121SKalle Valo * 6e705c121SKalle Valo * GPL LICENSE SUMMARY 7e705c121SKalle Valo * 8e705c121SKalle Valo * Copyright(c) 2012 - 2015 Intel Corporation. All rights reserved. 9e705c121SKalle Valo * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 1026d6c16bSSara Sharon * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 114883145aSEmmanuel Grumbach * Copyright(c) 2018 Intel Corporation 12e705c121SKalle Valo * 13e705c121SKalle Valo * This program is free software; you can redistribute it and/or modify 14e705c121SKalle Valo * it under the terms of version 2 of the GNU General Public License as 15e705c121SKalle Valo * published by the Free Software Foundation. 16e705c121SKalle Valo * 17e705c121SKalle Valo * This program is distributed in the hope that it will be useful, but 18e705c121SKalle Valo * WITHOUT ANY WARRANTY; without even the implied warranty of 19e705c121SKalle Valo * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 20e705c121SKalle Valo * General Public License for more details. 21e705c121SKalle Valo * 22e705c121SKalle Valo * The full GNU General Public License is included in this distribution 23e705c121SKalle Valo * in the file called COPYING. 24e705c121SKalle Valo * 25e705c121SKalle Valo * Contact Information: 26cb2f8277SEmmanuel Grumbach * Intel Linux Wireless <linuxwifi@intel.com> 27e705c121SKalle Valo * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 28e705c121SKalle Valo * 29e705c121SKalle Valo * BSD LICENSE 30e705c121SKalle Valo * 31e705c121SKalle Valo * Copyright(c) 2012 - 2015 Intel Corporation. All rights reserved. 32e705c121SKalle Valo * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 3326d6c16bSSara Sharon * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 34bd8f3fc6SLiad Kaufman * Copyright(c) 2018 Intel Corporation 35e705c121SKalle Valo * All rights reserved. 36e705c121SKalle Valo * 37e705c121SKalle Valo * Redistribution and use in source and binary forms, with or without 38e705c121SKalle Valo * modification, are permitted provided that the following conditions 39e705c121SKalle Valo * are met: 40e705c121SKalle Valo * 41e705c121SKalle Valo * * Redistributions of source code must retain the above copyright 42e705c121SKalle Valo * notice, this list of conditions and the following disclaimer. 43e705c121SKalle Valo * * Redistributions in binary form must reproduce the above copyright 44e705c121SKalle Valo * notice, this list of conditions and the following disclaimer in 45e705c121SKalle Valo * the documentation and/or other materials provided with the 46e705c121SKalle Valo * distribution. 47e705c121SKalle Valo * * Neither the name Intel Corporation nor the names of its 48e705c121SKalle Valo * contributors may be used to endorse or promote products derived 49e705c121SKalle Valo * from this software without specific prior written permission. 50e705c121SKalle Valo * 51e705c121SKalle Valo * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 52e705c121SKalle Valo * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 53e705c121SKalle Valo * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 54e705c121SKalle Valo * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 55e705c121SKalle Valo * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 56e705c121SKalle Valo * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 57e705c121SKalle Valo * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 58e705c121SKalle Valo * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 59e705c121SKalle Valo * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 60e705c121SKalle Valo * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 61e705c121SKalle Valo * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 62e705c121SKalle Valo * 63e705c121SKalle Valo *****************************************************************************/ 64e705c121SKalle Valo #include <net/mac80211.h> 65e705c121SKalle Valo 66e705c121SKalle Valo #include "mvm.h" 67e705c121SKalle Valo #include "sta.h" 68e705c121SKalle Valo #include "rs.h" 69e705c121SKalle Valo 70337bfc98SAvraham Stern static int iwl_mvm_set_fw_key_idx(struct iwl_mvm *mvm); 71337bfc98SAvraham Stern 72337bfc98SAvraham Stern static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm, 73337bfc98SAvraham Stern u32 sta_id, 74337bfc98SAvraham Stern struct ieee80211_key_conf *key, bool mcast, 75337bfc98SAvraham Stern u32 tkip_iv32, u16 *tkip_p1k, u32 cmd_flags, 76337bfc98SAvraham Stern u8 key_offset, bool mfp); 77337bfc98SAvraham Stern 78854c5705SSara Sharon /* 79854c5705SSara Sharon * New version of ADD_STA_sta command added new fields at the end of the 80854c5705SSara Sharon * structure, so sending the size of the relevant API's structure is enough to 81854c5705SSara Sharon * support both API versions. 82854c5705SSara Sharon */ 83854c5705SSara Sharon static inline int iwl_mvm_add_sta_cmd_size(struct iwl_mvm *mvm) 84854c5705SSara Sharon { 85ced19f26SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) || 86ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 87ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd); 88ced19f26SSara Sharon else 89ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd_v7); 90854c5705SSara Sharon } 91854c5705SSara Sharon 92e705c121SKalle Valo static int iwl_mvm_find_free_sta_id(struct iwl_mvm *mvm, 93e705c121SKalle Valo enum nl80211_iftype iftype) 94e705c121SKalle Valo { 95e705c121SKalle Valo int sta_id; 96e705c121SKalle Valo u32 reserved_ids = 0; 97e705c121SKalle Valo 98e705c121SKalle Valo BUILD_BUG_ON(IWL_MVM_STATION_COUNT > 32); 99e705c121SKalle Valo WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)); 100e705c121SKalle Valo 101e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 102e705c121SKalle Valo 103e705c121SKalle Valo /* d0i3/d3 assumes the AP's sta_id (of sta vif) is 0. reserve it. */ 104e705c121SKalle Valo if (iftype != NL80211_IFTYPE_STATION) 105e705c121SKalle Valo reserved_ids = BIT(0); 106e705c121SKalle Valo 107e705c121SKalle Valo /* Don't take rcu_read_lock() since we are protected by mvm->mutex */ 1080ae98812SSara Sharon for (sta_id = 0; sta_id < ARRAY_SIZE(mvm->fw_id_to_mac_id); sta_id++) { 109e705c121SKalle Valo if (BIT(sta_id) & reserved_ids) 110e705c121SKalle Valo continue; 111e705c121SKalle Valo 112e705c121SKalle Valo if (!rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 113e705c121SKalle Valo lockdep_is_held(&mvm->mutex))) 114e705c121SKalle Valo return sta_id; 115e705c121SKalle Valo } 1160ae98812SSara Sharon return IWL_MVM_INVALID_STA; 117e705c121SKalle Valo } 118e705c121SKalle Valo 119e705c121SKalle Valo /* send station add/update command to firmware */ 120e705c121SKalle Valo int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 12124afba76SLiad Kaufman bool update, unsigned int flags) 122e705c121SKalle Valo { 123e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 124e705c121SKalle Valo struct iwl_mvm_add_sta_cmd add_sta_cmd = { 125e705c121SKalle Valo .sta_id = mvm_sta->sta_id, 126e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color), 127e705c121SKalle Valo .add_modify = update ? 1 : 0, 128e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_FAT_EN_MSK | 1298addabf8SNaftali Goldstein STA_FLG_MIMO_EN_MSK | 1308addabf8SNaftali Goldstein STA_FLG_RTS_MIMO_PROT), 131cf0cda19SLiad Kaufman .tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg), 132e705c121SKalle Valo }; 133e705c121SKalle Valo int ret; 134e705c121SKalle Valo u32 status; 135e705c121SKalle Valo u32 agg_size = 0, mpdu_dens = 0; 136e705c121SKalle Valo 137ced19f26SSara Sharon if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 138ced19f26SSara Sharon add_sta_cmd.station_type = mvm_sta->sta_type; 139ced19f26SSara Sharon 14024afba76SLiad Kaufman if (!update || (flags & STA_MODIFY_QUEUES)) { 141e705c121SKalle Valo memcpy(&add_sta_cmd.addr, sta->addr, ETH_ALEN); 14224afba76SLiad Kaufman 143bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) { 144bb49701bSSara Sharon add_sta_cmd.tfd_queue_msk = 145bb49701bSSara Sharon cpu_to_le32(mvm_sta->tfd_queue_msk); 146bb49701bSSara Sharon 14724afba76SLiad Kaufman if (flags & STA_MODIFY_QUEUES) 14824afba76SLiad Kaufman add_sta_cmd.modify_mask |= STA_MODIFY_QUEUES; 149bb49701bSSara Sharon } else { 150bb49701bSSara Sharon WARN_ON(flags & STA_MODIFY_QUEUES); 151bb49701bSSara Sharon } 152e705c121SKalle Valo } 153e705c121SKalle Valo 154e705c121SKalle Valo switch (sta->bandwidth) { 155e705c121SKalle Valo case IEEE80211_STA_RX_BW_160: 156e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_160MHZ); 157e705c121SKalle Valo /* fall through */ 158e705c121SKalle Valo case IEEE80211_STA_RX_BW_80: 159e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_80MHZ); 160e705c121SKalle Valo /* fall through */ 161e705c121SKalle Valo case IEEE80211_STA_RX_BW_40: 162e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_40MHZ); 163e705c121SKalle Valo /* fall through */ 164e705c121SKalle Valo case IEEE80211_STA_RX_BW_20: 165e705c121SKalle Valo if (sta->ht_cap.ht_supported) 166e705c121SKalle Valo add_sta_cmd.station_flags |= 167e705c121SKalle Valo cpu_to_le32(STA_FLG_FAT_EN_20MHZ); 168e705c121SKalle Valo break; 169e705c121SKalle Valo } 170e705c121SKalle Valo 171e705c121SKalle Valo switch (sta->rx_nss) { 172e705c121SKalle Valo case 1: 173e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 174e705c121SKalle Valo break; 175e705c121SKalle Valo case 2: 176e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO2); 177e705c121SKalle Valo break; 178e705c121SKalle Valo case 3 ... 8: 179e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO3); 180e705c121SKalle Valo break; 181e705c121SKalle Valo } 182e705c121SKalle Valo 183e705c121SKalle Valo switch (sta->smps_mode) { 184e705c121SKalle Valo case IEEE80211_SMPS_AUTOMATIC: 185e705c121SKalle Valo case IEEE80211_SMPS_NUM_MODES: 186e705c121SKalle Valo WARN_ON(1); 187e705c121SKalle Valo break; 188e705c121SKalle Valo case IEEE80211_SMPS_STATIC: 189e705c121SKalle Valo /* override NSS */ 190e705c121SKalle Valo add_sta_cmd.station_flags &= ~cpu_to_le32(STA_FLG_MIMO_EN_MSK); 191e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 192e705c121SKalle Valo break; 193e705c121SKalle Valo case IEEE80211_SMPS_DYNAMIC: 194e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_RTS_MIMO_PROT); 195e705c121SKalle Valo break; 196e705c121SKalle Valo case IEEE80211_SMPS_OFF: 197e705c121SKalle Valo /* nothing */ 198e705c121SKalle Valo break; 199e705c121SKalle Valo } 200e705c121SKalle Valo 201e705c121SKalle Valo if (sta->ht_cap.ht_supported) { 202e705c121SKalle Valo add_sta_cmd.station_flags_msk |= 203e705c121SKalle Valo cpu_to_le32(STA_FLG_MAX_AGG_SIZE_MSK | 204e705c121SKalle Valo STA_FLG_AGG_MPDU_DENS_MSK); 205e705c121SKalle Valo 206e705c121SKalle Valo mpdu_dens = sta->ht_cap.ampdu_density; 207e705c121SKalle Valo } 208e705c121SKalle Valo 209e705c121SKalle Valo if (sta->vht_cap.vht_supported) { 210e705c121SKalle Valo agg_size = sta->vht_cap.cap & 211e705c121SKalle Valo IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; 212e705c121SKalle Valo agg_size >>= 213e705c121SKalle Valo IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; 214e705c121SKalle Valo } else if (sta->ht_cap.ht_supported) { 215e705c121SKalle Valo agg_size = sta->ht_cap.ampdu_factor; 216e705c121SKalle Valo } 217e705c121SKalle Valo 218e705c121SKalle Valo add_sta_cmd.station_flags |= 219e705c121SKalle Valo cpu_to_le32(agg_size << STA_FLG_MAX_AGG_SIZE_SHIFT); 220e705c121SKalle Valo add_sta_cmd.station_flags |= 221e705c121SKalle Valo cpu_to_le32(mpdu_dens << STA_FLG_AGG_MPDU_DENS_SHIFT); 222d94c5a82SGregory Greenman if (mvm_sta->sta_state >= IEEE80211_STA_ASSOC) 22319c52f46SEmmanuel Grumbach add_sta_cmd.assoc_id = cpu_to_le16(sta->aid); 224e705c121SKalle Valo 22565e25482SJohannes Berg if (sta->wme) { 22665e25482SJohannes Berg add_sta_cmd.modify_mask |= STA_MODIFY_UAPSD_ACS; 22765e25482SJohannes Berg 22865e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK) 229c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_BK); 23065e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE) 231c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_BE); 23265e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI) 233c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_VI); 23465e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) 235c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_VO); 236c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= add_sta_cmd.uapsd_acs << 4; 237e71ca5eaSEmmanuel Grumbach add_sta_cmd.sp_length = sta->max_sp ? sta->max_sp * 2 : 128; 23865e25482SJohannes Berg } 23965e25482SJohannes Berg 240e705c121SKalle Valo status = ADD_STA_SUCCESS; 241854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 242854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 243e705c121SKalle Valo &add_sta_cmd, &status); 244e705c121SKalle Valo if (ret) 245e705c121SKalle Valo return ret; 246e705c121SKalle Valo 247837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 248e705c121SKalle Valo case ADD_STA_SUCCESS: 249e705c121SKalle Valo IWL_DEBUG_ASSOC(mvm, "ADD_STA PASSED\n"); 250e705c121SKalle Valo break; 251e705c121SKalle Valo default: 252e705c121SKalle Valo ret = -EIO; 253e705c121SKalle Valo IWL_ERR(mvm, "ADD_STA failed\n"); 254e705c121SKalle Valo break; 255e705c121SKalle Valo } 256e705c121SKalle Valo 257e705c121SKalle Valo return ret; 258e705c121SKalle Valo } 259e705c121SKalle Valo 2608cef5344SKees Cook static void iwl_mvm_rx_agg_session_expired(struct timer_list *t) 26110b2b201SSara Sharon { 2628cef5344SKees Cook struct iwl_mvm_baid_data *data = 2638cef5344SKees Cook from_timer(data, t, session_timer); 2648cef5344SKees Cook struct iwl_mvm_baid_data __rcu **rcu_ptr = data->rcu_ptr; 26510b2b201SSara Sharon struct iwl_mvm_baid_data *ba_data; 26610b2b201SSara Sharon struct ieee80211_sta *sta; 26710b2b201SSara Sharon struct iwl_mvm_sta *mvm_sta; 26810b2b201SSara Sharon unsigned long timeout; 26910b2b201SSara Sharon 27010b2b201SSara Sharon rcu_read_lock(); 27110b2b201SSara Sharon 27210b2b201SSara Sharon ba_data = rcu_dereference(*rcu_ptr); 27310b2b201SSara Sharon 27410b2b201SSara Sharon if (WARN_ON(!ba_data)) 27510b2b201SSara Sharon goto unlock; 27610b2b201SSara Sharon 27710b2b201SSara Sharon if (!ba_data->timeout) 27810b2b201SSara Sharon goto unlock; 27910b2b201SSara Sharon 28010b2b201SSara Sharon timeout = ba_data->last_rx + TU_TO_JIFFIES(ba_data->timeout * 2); 28110b2b201SSara Sharon if (time_is_after_jiffies(timeout)) { 28210b2b201SSara Sharon mod_timer(&ba_data->session_timer, timeout); 28310b2b201SSara Sharon goto unlock; 28410b2b201SSara Sharon } 28510b2b201SSara Sharon 28610b2b201SSara Sharon /* Timer expired */ 28710b2b201SSara Sharon sta = rcu_dereference(ba_data->mvm->fw_id_to_mac_id[ba_data->sta_id]); 28861dd8a8aSEmmanuel Grumbach 28961dd8a8aSEmmanuel Grumbach /* 29061dd8a8aSEmmanuel Grumbach * sta should be valid unless the following happens: 29161dd8a8aSEmmanuel Grumbach * The firmware asserts which triggers a reconfig flow, but 29261dd8a8aSEmmanuel Grumbach * the reconfig fails before we set the pointer to sta into 29361dd8a8aSEmmanuel Grumbach * the fw_id_to_mac_id pointer table. Mac80211 can't stop 29461dd8a8aSEmmanuel Grumbach * A-MDPU and hence the timer continues to run. Then, the 29561dd8a8aSEmmanuel Grumbach * timer expires and sta is NULL. 29661dd8a8aSEmmanuel Grumbach */ 29761dd8a8aSEmmanuel Grumbach if (!sta) 29861dd8a8aSEmmanuel Grumbach goto unlock; 29961dd8a8aSEmmanuel Grumbach 30010b2b201SSara Sharon mvm_sta = iwl_mvm_sta_from_mac80211(sta); 30120fc690fSNaftali Goldstein ieee80211_rx_ba_timer_expired(mvm_sta->vif, 30210b2b201SSara Sharon sta->addr, ba_data->tid); 30310b2b201SSara Sharon unlock: 30410b2b201SSara Sharon rcu_read_unlock(); 30510b2b201SSara Sharon } 30610b2b201SSara Sharon 3079794c64fSLiad Kaufman /* Disable aggregations for a bitmap of TIDs for a given station */ 3089794c64fSLiad Kaufman static int iwl_mvm_invalidate_sta_queue(struct iwl_mvm *mvm, int queue, 3099794c64fSLiad Kaufman unsigned long disable_agg_tids, 3109794c64fSLiad Kaufman bool remove_queue) 3119794c64fSLiad Kaufman { 3129794c64fSLiad Kaufman struct iwl_mvm_add_sta_cmd cmd = {}; 3139794c64fSLiad Kaufman struct ieee80211_sta *sta; 3149794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 3159794c64fSLiad Kaufman u32 status; 3169794c64fSLiad Kaufman u8 sta_id; 3179794c64fSLiad Kaufman int ret; 3189794c64fSLiad Kaufman 319bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 320bb49701bSSara Sharon return -EINVAL; 321bb49701bSSara Sharon 3229794c64fSLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 3239794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 3249794c64fSLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 3259794c64fSLiad Kaufman 3269794c64fSLiad Kaufman rcu_read_lock(); 3279794c64fSLiad Kaufman 3289794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 3299794c64fSLiad Kaufman 3309794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 3319794c64fSLiad Kaufman rcu_read_unlock(); 3329794c64fSLiad Kaufman return -EINVAL; 3339794c64fSLiad Kaufman } 3349794c64fSLiad Kaufman 3359794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 3369794c64fSLiad Kaufman 3379794c64fSLiad Kaufman mvmsta->tid_disable_agg |= disable_agg_tids; 3389794c64fSLiad Kaufman 3399794c64fSLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 3409794c64fSLiad Kaufman cmd.sta_id = mvmsta->sta_id; 3419794c64fSLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 3429794c64fSLiad Kaufman cmd.modify_mask = STA_MODIFY_QUEUES; 3439794c64fSLiad Kaufman if (disable_agg_tids) 3449794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 3459794c64fSLiad Kaufman if (remove_queue) 3469794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_QUEUE_REMOVAL; 3479794c64fSLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 3489794c64fSLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 3499794c64fSLiad Kaufman 3509794c64fSLiad Kaufman rcu_read_unlock(); 3519794c64fSLiad Kaufman 3529794c64fSLiad Kaufman /* Notify FW of queue removal from the STA queues */ 3539794c64fSLiad Kaufman status = ADD_STA_SUCCESS; 3549794c64fSLiad Kaufman ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 3559794c64fSLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), 3569794c64fSLiad Kaufman &cmd, &status); 3579794c64fSLiad Kaufman 3589794c64fSLiad Kaufman return ret; 3599794c64fSLiad Kaufman } 3609794c64fSLiad Kaufman 36142db09c1SLiad Kaufman static int iwl_mvm_get_queue_agg_tids(struct iwl_mvm *mvm, int queue) 36242db09c1SLiad Kaufman { 36342db09c1SLiad Kaufman struct ieee80211_sta *sta; 36442db09c1SLiad Kaufman struct iwl_mvm_sta *mvmsta; 36542db09c1SLiad Kaufman unsigned long tid_bitmap; 36642db09c1SLiad Kaufman unsigned long agg_tids = 0; 367806911daSSharon Dvir u8 sta_id; 36842db09c1SLiad Kaufman int tid; 36942db09c1SLiad Kaufman 37042db09c1SLiad Kaufman lockdep_assert_held(&mvm->mutex); 37142db09c1SLiad Kaufman 372bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 373bb49701bSSara Sharon return -EINVAL; 374bb49701bSSara Sharon 37542db09c1SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 37642db09c1SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 37742db09c1SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 37842db09c1SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 37942db09c1SLiad Kaufman 38042db09c1SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 38142db09c1SLiad Kaufman lockdep_is_held(&mvm->mutex)); 38242db09c1SLiad Kaufman 38342db09c1SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 38442db09c1SLiad Kaufman return -EINVAL; 38542db09c1SLiad Kaufman 38642db09c1SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 38742db09c1SLiad Kaufman 38842db09c1SLiad Kaufman spin_lock_bh(&mvmsta->lock); 38942db09c1SLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 39042db09c1SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 39142db09c1SLiad Kaufman agg_tids |= BIT(tid); 39242db09c1SLiad Kaufman } 39342db09c1SLiad Kaufman spin_unlock_bh(&mvmsta->lock); 39442db09c1SLiad Kaufman 39542db09c1SLiad Kaufman return agg_tids; 39642db09c1SLiad Kaufman } 39742db09c1SLiad Kaufman 3989794c64fSLiad Kaufman /* 3999794c64fSLiad Kaufman * Remove a queue from a station's resources. 4009794c64fSLiad Kaufman * Note that this only marks as free. It DOESN'T delete a BA agreement, and 4019794c64fSLiad Kaufman * doesn't disable the queue 4029794c64fSLiad Kaufman */ 4039794c64fSLiad Kaufman static int iwl_mvm_remove_sta_queue_marking(struct iwl_mvm *mvm, int queue) 4049794c64fSLiad Kaufman { 4059794c64fSLiad Kaufman struct ieee80211_sta *sta; 4069794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 4079794c64fSLiad Kaufman unsigned long tid_bitmap; 4089794c64fSLiad Kaufman unsigned long disable_agg_tids = 0; 4099794c64fSLiad Kaufman u8 sta_id; 4109794c64fSLiad Kaufman int tid; 4119794c64fSLiad Kaufman 4129794c64fSLiad Kaufman lockdep_assert_held(&mvm->mutex); 4139794c64fSLiad Kaufman 414bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 415bb49701bSSara Sharon return -EINVAL; 416bb49701bSSara Sharon 4179794c64fSLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 4189794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 4199794c64fSLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 4209794c64fSLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 4219794c64fSLiad Kaufman 4229794c64fSLiad Kaufman rcu_read_lock(); 4239794c64fSLiad Kaufman 4249794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 4259794c64fSLiad Kaufman 4269794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 4279794c64fSLiad Kaufman rcu_read_unlock(); 4289794c64fSLiad Kaufman return 0; 4299794c64fSLiad Kaufman } 4309794c64fSLiad Kaufman 4319794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 4329794c64fSLiad Kaufman 4339794c64fSLiad Kaufman spin_lock_bh(&mvmsta->lock); 43442db09c1SLiad Kaufman /* Unmap MAC queues and TIDs from this queue */ 4359794c64fSLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 4369794c64fSLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 4379794c64fSLiad Kaufman disable_agg_tids |= BIT(tid); 4386862fceeSSara Sharon mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 4399794c64fSLiad Kaufman } 4409794c64fSLiad Kaufman 44142db09c1SLiad Kaufman mvmsta->tfd_queue_msk &= ~BIT(queue); /* Don't use this queue anymore */ 4429794c64fSLiad Kaufman spin_unlock_bh(&mvmsta->lock); 4439794c64fSLiad Kaufman 4449794c64fSLiad Kaufman rcu_read_unlock(); 4459794c64fSLiad Kaufman 4469794c64fSLiad Kaufman return disable_agg_tids; 4479794c64fSLiad Kaufman } 4489794c64fSLiad Kaufman 44901796ff2SSara Sharon static int iwl_mvm_free_inactive_queue(struct iwl_mvm *mvm, int queue, 45001796ff2SSara Sharon bool same_sta) 45101796ff2SSara Sharon { 45201796ff2SSara Sharon struct iwl_mvm_sta *mvmsta; 45301796ff2SSara Sharon u8 txq_curr_ac, sta_id, tid; 45401796ff2SSara Sharon unsigned long disable_agg_tids = 0; 45501796ff2SSara Sharon int ret; 45601796ff2SSara Sharon 45701796ff2SSara Sharon lockdep_assert_held(&mvm->mutex); 45801796ff2SSara Sharon 459bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 460bb49701bSSara Sharon return -EINVAL; 461bb49701bSSara Sharon 46201796ff2SSara Sharon spin_lock_bh(&mvm->queue_info_lock); 46301796ff2SSara Sharon txq_curr_ac = mvm->queue_info[queue].mac80211_ac; 46401796ff2SSara Sharon sta_id = mvm->queue_info[queue].ra_sta_id; 46501796ff2SSara Sharon tid = mvm->queue_info[queue].txq_tid; 46601796ff2SSara Sharon spin_unlock_bh(&mvm->queue_info_lock); 46701796ff2SSara Sharon 46801796ff2SSara Sharon mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 469e3df1e4bSSharon Dvir if (WARN_ON(!mvmsta)) 470e3df1e4bSSharon Dvir return -EINVAL; 47101796ff2SSara Sharon 47201796ff2SSara Sharon disable_agg_tids = iwl_mvm_remove_sta_queue_marking(mvm, queue); 47301796ff2SSara Sharon /* Disable the queue */ 47401796ff2SSara Sharon if (disable_agg_tids) 47501796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 47601796ff2SSara Sharon disable_agg_tids, false); 47701796ff2SSara Sharon 47801796ff2SSara Sharon ret = iwl_mvm_disable_txq(mvm, queue, 47901796ff2SSara Sharon mvmsta->vif->hw_queue[txq_curr_ac], 48001796ff2SSara Sharon tid, 0); 48101796ff2SSara Sharon if (ret) { 48201796ff2SSara Sharon /* Re-mark the inactive queue as inactive */ 48301796ff2SSara Sharon spin_lock_bh(&mvm->queue_info_lock); 48401796ff2SSara Sharon mvm->queue_info[queue].status = IWL_MVM_QUEUE_INACTIVE; 48501796ff2SSara Sharon spin_unlock_bh(&mvm->queue_info_lock); 48601796ff2SSara Sharon IWL_ERR(mvm, 48701796ff2SSara Sharon "Failed to free inactive queue %d (ret=%d)\n", 48801796ff2SSara Sharon queue, ret); 48901796ff2SSara Sharon 49001796ff2SSara Sharon return ret; 49101796ff2SSara Sharon } 49201796ff2SSara Sharon 49301796ff2SSara Sharon /* If TXQ is allocated to another STA, update removal in FW */ 49401796ff2SSara Sharon if (!same_sta) 49501796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 0, true); 49601796ff2SSara Sharon 49701796ff2SSara Sharon return 0; 49801796ff2SSara Sharon } 49901796ff2SSara Sharon 50042db09c1SLiad Kaufman static int iwl_mvm_get_shared_queue(struct iwl_mvm *mvm, 50142db09c1SLiad Kaufman unsigned long tfd_queue_mask, u8 ac) 50242db09c1SLiad Kaufman { 50342db09c1SLiad Kaufman int queue = 0; 50442db09c1SLiad Kaufman u8 ac_to_queue[IEEE80211_NUM_ACS]; 50542db09c1SLiad Kaufman int i; 50642db09c1SLiad Kaufman 50742db09c1SLiad Kaufman lockdep_assert_held(&mvm->queue_info_lock); 508bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 509bb49701bSSara Sharon return -EINVAL; 51042db09c1SLiad Kaufman 51142db09c1SLiad Kaufman memset(&ac_to_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(ac_to_queue)); 51242db09c1SLiad Kaufman 51342db09c1SLiad Kaufman /* See what ACs the existing queues for this STA have */ 51442db09c1SLiad Kaufman for_each_set_bit(i, &tfd_queue_mask, IWL_MVM_DQA_MAX_DATA_QUEUE) { 51542db09c1SLiad Kaufman /* Only DATA queues can be shared */ 51642db09c1SLiad Kaufman if (i < IWL_MVM_DQA_MIN_DATA_QUEUE && 51742db09c1SLiad Kaufman i != IWL_MVM_DQA_BSS_CLIENT_QUEUE) 51842db09c1SLiad Kaufman continue; 51942db09c1SLiad Kaufman 5209f9af3d7SLiad Kaufman /* Don't try and take queues being reconfigured */ 5219f9af3d7SLiad Kaufman if (mvm->queue_info[queue].status == 5229f9af3d7SLiad Kaufman IWL_MVM_QUEUE_RECONFIGURING) 5239f9af3d7SLiad Kaufman continue; 5249f9af3d7SLiad Kaufman 52542db09c1SLiad Kaufman ac_to_queue[mvm->queue_info[i].mac80211_ac] = i; 52642db09c1SLiad Kaufman } 52742db09c1SLiad Kaufman 52842db09c1SLiad Kaufman /* 52942db09c1SLiad Kaufman * The queue to share is chosen only from DATA queues as follows (in 53042db09c1SLiad Kaufman * descending priority): 53142db09c1SLiad Kaufman * 1. An AC_BE queue 53242db09c1SLiad Kaufman * 2. Same AC queue 53342db09c1SLiad Kaufman * 3. Highest AC queue that is lower than new AC 53442db09c1SLiad Kaufman * 4. Any existing AC (there always is at least 1 DATA queue) 53542db09c1SLiad Kaufman */ 53642db09c1SLiad Kaufman 53742db09c1SLiad Kaufman /* Priority 1: An AC_BE queue */ 53842db09c1SLiad Kaufman if (ac_to_queue[IEEE80211_AC_BE] != IEEE80211_INVAL_HW_QUEUE) 53942db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BE]; 54042db09c1SLiad Kaufman /* Priority 2: Same AC queue */ 54142db09c1SLiad Kaufman else if (ac_to_queue[ac] != IEEE80211_INVAL_HW_QUEUE) 54242db09c1SLiad Kaufman queue = ac_to_queue[ac]; 54342db09c1SLiad Kaufman /* Priority 3a: If new AC is VO and VI exists - use VI */ 54442db09c1SLiad Kaufman else if (ac == IEEE80211_AC_VO && 54542db09c1SLiad Kaufman ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 54642db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 54742db09c1SLiad Kaufman /* Priority 3b: No BE so only AC less than the new one is BK */ 54842db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_BK] != IEEE80211_INVAL_HW_QUEUE) 54942db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BK]; 55042db09c1SLiad Kaufman /* Priority 4a: No BE nor BK - use VI if exists */ 55142db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 55242db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 55342db09c1SLiad Kaufman /* Priority 4b: No BE, BK nor VI - use VO if exists */ 55442db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VO] != IEEE80211_INVAL_HW_QUEUE) 55542db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VO]; 55642db09c1SLiad Kaufman 55742db09c1SLiad Kaufman /* Make sure queue found (or not) is legal */ 5589f9af3d7SLiad Kaufman if (!iwl_mvm_is_dqa_data_queue(mvm, queue) && 5599f9af3d7SLiad Kaufman !iwl_mvm_is_dqa_mgmt_queue(mvm, queue) && 5609f9af3d7SLiad Kaufman (queue != IWL_MVM_DQA_BSS_CLIENT_QUEUE)) { 56142db09c1SLiad Kaufman IWL_ERR(mvm, "No DATA queues available to share\n"); 5629f9af3d7SLiad Kaufman return -ENOSPC; 5639f9af3d7SLiad Kaufman } 5649f9af3d7SLiad Kaufman 5659f9af3d7SLiad Kaufman /* Make sure the queue isn't in the middle of being reconfigured */ 5669f9af3d7SLiad Kaufman if (mvm->queue_info[queue].status == IWL_MVM_QUEUE_RECONFIGURING) { 5679f9af3d7SLiad Kaufman IWL_ERR(mvm, 5689f9af3d7SLiad Kaufman "TXQ %d is in the middle of re-config - try again\n", 5699f9af3d7SLiad Kaufman queue); 5709f9af3d7SLiad Kaufman return -EBUSY; 57142db09c1SLiad Kaufman } 57242db09c1SLiad Kaufman 57342db09c1SLiad Kaufman return queue; 57442db09c1SLiad Kaufman } 57542db09c1SLiad Kaufman 57658f2cc57SLiad Kaufman /* 5779f9af3d7SLiad Kaufman * If a given queue has a higher AC than the TID stream that is being compared 5789f9af3d7SLiad Kaufman * to, the queue needs to be redirected to the lower AC. This function does that 57958f2cc57SLiad Kaufman * in such a case, otherwise - if no redirection required - it does nothing, 58058f2cc57SLiad Kaufman * unless the %force param is true. 58158f2cc57SLiad Kaufman */ 5829f9af3d7SLiad Kaufman int iwl_mvm_scd_queue_redirect(struct iwl_mvm *mvm, int queue, int tid, 58358f2cc57SLiad Kaufman int ac, int ssn, unsigned int wdg_timeout, 58458f2cc57SLiad Kaufman bool force) 58558f2cc57SLiad Kaufman { 58658f2cc57SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 58758f2cc57SLiad Kaufman .scd_queue = queue, 588f7c692deSLiad Kaufman .action = SCD_CFG_DISABLE_QUEUE, 58958f2cc57SLiad Kaufman }; 59058f2cc57SLiad Kaufman bool shared_queue; 59158f2cc57SLiad Kaufman unsigned long mq; 59258f2cc57SLiad Kaufman int ret; 59358f2cc57SLiad Kaufman 594bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 595bb49701bSSara Sharon return -EINVAL; 596bb49701bSSara Sharon 59758f2cc57SLiad Kaufman /* 59858f2cc57SLiad Kaufman * If the AC is lower than current one - FIFO needs to be redirected to 59958f2cc57SLiad Kaufman * the lowest one of the streams in the queue. Check if this is needed 60058f2cc57SLiad Kaufman * here. 60158f2cc57SLiad Kaufman * Notice that the enum ieee80211_ac_numbers is "flipped", so BK is with 60258f2cc57SLiad Kaufman * value 3 and VO with value 0, so to check if ac X is lower than ac Y 60358f2cc57SLiad Kaufman * we need to check if the numerical value of X is LARGER than of Y. 60458f2cc57SLiad Kaufman */ 60558f2cc57SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 60658f2cc57SLiad Kaufman if (ac <= mvm->queue_info[queue].mac80211_ac && !force) { 60758f2cc57SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 60858f2cc57SLiad Kaufman 60958f2cc57SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 61058f2cc57SLiad Kaufman "No redirection needed on TXQ #%d\n", 61158f2cc57SLiad Kaufman queue); 61258f2cc57SLiad Kaufman return 0; 61358f2cc57SLiad Kaufman } 61458f2cc57SLiad Kaufman 61558f2cc57SLiad Kaufman cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 61658f2cc57SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[mvm->queue_info[queue].mac80211_ac]; 617edbe961cSLiad Kaufman cmd.tid = mvm->queue_info[queue].txq_tid; 61834e10860SSara Sharon mq = mvm->hw_queue_to_mac80211[queue]; 61958f2cc57SLiad Kaufman shared_queue = (mvm->queue_info[queue].hw_queue_refcount > 1); 62058f2cc57SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 62158f2cc57SLiad Kaufman 6229f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Redirecting TXQ #%d to FIFO #%d\n", 62358f2cc57SLiad Kaufman queue, iwl_mvm_ac_to_tx_fifo[ac]); 62458f2cc57SLiad Kaufman 62558f2cc57SLiad Kaufman /* Stop MAC queues and wait for this queue to empty */ 62658f2cc57SLiad Kaufman iwl_mvm_stop_mac_queues(mvm, mq); 627a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(queue)); 62858f2cc57SLiad Kaufman if (ret) { 62958f2cc57SLiad Kaufman IWL_ERR(mvm, "Error draining queue %d before reconfig\n", 63058f2cc57SLiad Kaufman queue); 63158f2cc57SLiad Kaufman ret = -EIO; 63258f2cc57SLiad Kaufman goto out; 63358f2cc57SLiad Kaufman } 63458f2cc57SLiad Kaufman 63558f2cc57SLiad Kaufman /* Before redirecting the queue we need to de-activate it */ 63658f2cc57SLiad Kaufman iwl_trans_txq_disable(mvm->trans, queue, false); 63758f2cc57SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 63858f2cc57SLiad Kaufman if (ret) 63958f2cc57SLiad Kaufman IWL_ERR(mvm, "Failed SCD disable TXQ %d (ret=%d)\n", queue, 64058f2cc57SLiad Kaufman ret); 64158f2cc57SLiad Kaufman 64258f2cc57SLiad Kaufman /* Make sure the SCD wrptr is correctly set before reconfiguring */ 643ca3b9c6bSSara Sharon iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, wdg_timeout); 64458f2cc57SLiad Kaufman 645edbe961cSLiad Kaufman /* Update the TID "owner" of the queue */ 646edbe961cSLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 647edbe961cSLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 648edbe961cSLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 649edbe961cSLiad Kaufman 65058f2cc57SLiad Kaufman /* TODO: Work-around SCD bug when moving back by multiples of 0x40 */ 65158f2cc57SLiad Kaufman 65258f2cc57SLiad Kaufman /* Redirect to lower AC */ 65358f2cc57SLiad Kaufman iwl_mvm_reconfig_scd(mvm, queue, iwl_mvm_ac_to_tx_fifo[ac], 6540ec9257bSSara Sharon cmd.sta_id, tid, IWL_FRAME_LIMIT, ssn); 65558f2cc57SLiad Kaufman 65658f2cc57SLiad Kaufman /* Update AC marking of the queue */ 65758f2cc57SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 65858f2cc57SLiad Kaufman mvm->queue_info[queue].mac80211_ac = ac; 65958f2cc57SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 66058f2cc57SLiad Kaufman 66158f2cc57SLiad Kaufman /* 66258f2cc57SLiad Kaufman * Mark queue as shared in transport if shared 66358f2cc57SLiad Kaufman * Note this has to be done after queue enablement because enablement 66458f2cc57SLiad Kaufman * can also set this value, and there is no indication there to shared 66558f2cc57SLiad Kaufman * queues 66658f2cc57SLiad Kaufman */ 66758f2cc57SLiad Kaufman if (shared_queue) 66858f2cc57SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 66958f2cc57SLiad Kaufman 67058f2cc57SLiad Kaufman out: 67158f2cc57SLiad Kaufman /* Continue using the MAC queues */ 67258f2cc57SLiad Kaufman iwl_mvm_start_mac_queues(mvm, mq); 67358f2cc57SLiad Kaufman 67458f2cc57SLiad Kaufman return ret; 67558f2cc57SLiad Kaufman } 67658f2cc57SLiad Kaufman 677310181ecSSara Sharon static int iwl_mvm_sta_alloc_queue_tvqm(struct iwl_mvm *mvm, 678310181ecSSara Sharon struct ieee80211_sta *sta, u8 ac, 679310181ecSSara Sharon int tid) 680310181ecSSara Sharon { 681310181ecSSara Sharon struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 682310181ecSSara Sharon unsigned int wdg_timeout = 683310181ecSSara Sharon iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 684310181ecSSara Sharon u8 mac_queue = mvmsta->vif->hw_queue[ac]; 685310181ecSSara Sharon int queue = -1; 686310181ecSSara Sharon 687310181ecSSara Sharon lockdep_assert_held(&mvm->mutex); 688310181ecSSara Sharon 689310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 690310181ecSSara Sharon "Allocating queue for sta %d on tid %d\n", 691310181ecSSara Sharon mvmsta->sta_id, tid); 692310181ecSSara Sharon queue = iwl_mvm_tvqm_enable_txq(mvm, mac_queue, mvmsta->sta_id, tid, 693310181ecSSara Sharon wdg_timeout); 694310181ecSSara Sharon if (queue < 0) 695310181ecSSara Sharon return queue; 696310181ecSSara Sharon 697310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, "Allocated queue is %d\n", queue); 698310181ecSSara Sharon 699310181ecSSara Sharon spin_lock_bh(&mvmsta->lock); 700310181ecSSara Sharon mvmsta->tid_data[tid].txq_id = queue; 701310181ecSSara Sharon mvmsta->tid_data[tid].is_tid_active = true; 702310181ecSSara Sharon spin_unlock_bh(&mvmsta->lock); 703310181ecSSara Sharon 704310181ecSSara Sharon return 0; 705310181ecSSara Sharon } 706310181ecSSara Sharon 70724afba76SLiad Kaufman static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm, 70824afba76SLiad Kaufman struct ieee80211_sta *sta, u8 ac, int tid, 70924afba76SLiad Kaufman struct ieee80211_hdr *hdr) 71024afba76SLiad Kaufman { 71124afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 71224afba76SLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 713cf6c6ea3SEmmanuel Grumbach .fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac), 71424afba76SLiad Kaufman .sta_id = mvmsta->sta_id, 71524afba76SLiad Kaufman .tid = tid, 71624afba76SLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 71724afba76SLiad Kaufman }; 71824afba76SLiad Kaufman unsigned int wdg_timeout = 71924afba76SLiad Kaufman iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 72024afba76SLiad Kaufman u8 mac_queue = mvmsta->vif->hw_queue[ac]; 72124afba76SLiad Kaufman int queue = -1; 72201796ff2SSara Sharon bool using_inactive_queue = false, same_sta = false; 7239794c64fSLiad Kaufman unsigned long disable_agg_tids = 0; 7249794c64fSLiad Kaufman enum iwl_mvm_agg_state queue_state; 725dcfbd67bSEmmanuel Grumbach bool shared_queue = false, inc_ssn; 72624afba76SLiad Kaufman int ssn; 72742db09c1SLiad Kaufman unsigned long tfd_queue_mask; 728cf961e16SLiad Kaufman int ret; 72924afba76SLiad Kaufman 73024afba76SLiad Kaufman lockdep_assert_held(&mvm->mutex); 73124afba76SLiad Kaufman 732310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 733310181ecSSara Sharon return iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 734310181ecSSara Sharon 73542db09c1SLiad Kaufman spin_lock_bh(&mvmsta->lock); 73642db09c1SLiad Kaufman tfd_queue_mask = mvmsta->tfd_queue_msk; 73742db09c1SLiad Kaufman spin_unlock_bh(&mvmsta->lock); 73842db09c1SLiad Kaufman 739d2515a99SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 74024afba76SLiad Kaufman 74124afba76SLiad Kaufman /* 74224afba76SLiad Kaufman * Non-QoS, QoS NDP and MGMT frames should go to a MGMT queue, if one 74324afba76SLiad Kaufman * exists 74424afba76SLiad Kaufman */ 74524afba76SLiad Kaufman if (!ieee80211_is_data_qos(hdr->frame_control) || 74624afba76SLiad Kaufman ieee80211_is_qos_nullfunc(hdr->frame_control)) { 7479794c64fSLiad Kaufman queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 7489794c64fSLiad Kaufman IWL_MVM_DQA_MIN_MGMT_QUEUE, 74924afba76SLiad Kaufman IWL_MVM_DQA_MAX_MGMT_QUEUE); 75024afba76SLiad Kaufman if (queue >= IWL_MVM_DQA_MIN_MGMT_QUEUE) 75124afba76SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Found free MGMT queue #%d\n", 75224afba76SLiad Kaufman queue); 75324afba76SLiad Kaufman 75424afba76SLiad Kaufman /* If no such queue is found, we'll use a DATA queue instead */ 75524afba76SLiad Kaufman } 75624afba76SLiad Kaufman 7579794c64fSLiad Kaufman if ((queue < 0 && mvmsta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) && 7589794c64fSLiad Kaufman (mvm->queue_info[mvmsta->reserved_queue].status == 7599794c64fSLiad Kaufman IWL_MVM_QUEUE_RESERVED || 7609794c64fSLiad Kaufman mvm->queue_info[mvmsta->reserved_queue].status == 7619794c64fSLiad Kaufman IWL_MVM_QUEUE_INACTIVE)) { 76224afba76SLiad Kaufman queue = mvmsta->reserved_queue; 7639794c64fSLiad Kaufman mvm->queue_info[queue].reserved = true; 76424afba76SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Using reserved queue #%d\n", queue); 76524afba76SLiad Kaufman } 76624afba76SLiad Kaufman 76724afba76SLiad Kaufman if (queue < 0) 7689794c64fSLiad Kaufman queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 7699794c64fSLiad Kaufman IWL_MVM_DQA_MIN_DATA_QUEUE, 77024afba76SLiad Kaufman IWL_MVM_DQA_MAX_DATA_QUEUE); 771cf961e16SLiad Kaufman 772cf961e16SLiad Kaufman /* 7739794c64fSLiad Kaufman * Check if this queue is already allocated but inactive. 7749794c64fSLiad Kaufman * In such a case, we'll need to first free this queue before enabling 7759794c64fSLiad Kaufman * it again, so we'll mark it as reserved to make sure no new traffic 7769794c64fSLiad Kaufman * arrives on it 7779794c64fSLiad Kaufman */ 7789794c64fSLiad Kaufman if (queue > 0 && 7799794c64fSLiad Kaufman mvm->queue_info[queue].status == IWL_MVM_QUEUE_INACTIVE) { 7809794c64fSLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_RESERVED; 7819794c64fSLiad Kaufman using_inactive_queue = true; 78201796ff2SSara Sharon same_sta = mvm->queue_info[queue].ra_sta_id == mvmsta->sta_id; 7839794c64fSLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 7849794c64fSLiad Kaufman "Re-assigning TXQ %d: sta_id=%d, tid=%d\n", 7859794c64fSLiad Kaufman queue, mvmsta->sta_id, tid); 7869794c64fSLiad Kaufman } 7879794c64fSLiad Kaufman 78842db09c1SLiad Kaufman /* No free queue - we'll have to share */ 78942db09c1SLiad Kaufman if (queue <= 0) { 79042db09c1SLiad Kaufman queue = iwl_mvm_get_shared_queue(mvm, tfd_queue_mask, ac); 79142db09c1SLiad Kaufman if (queue > 0) { 79242db09c1SLiad Kaufman shared_queue = true; 79342db09c1SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_SHARED; 79442db09c1SLiad Kaufman } 79542db09c1SLiad Kaufman } 79642db09c1SLiad Kaufman 7979794c64fSLiad Kaufman /* 798cf961e16SLiad Kaufman * Mark TXQ as ready, even though it hasn't been fully configured yet, 799cf961e16SLiad Kaufman * to make sure no one else takes it. 800cf961e16SLiad Kaufman * This will allow avoiding re-acquiring the lock at the end of the 801cf961e16SLiad Kaufman * configuration. On error we'll mark it back as free. 802cf961e16SLiad Kaufman */ 80342db09c1SLiad Kaufman if ((queue > 0) && !shared_queue) 804cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 80524afba76SLiad Kaufman 806d2515a99SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 80724afba76SLiad Kaufman 80842db09c1SLiad Kaufman /* This shouldn't happen - out of queues */ 80942db09c1SLiad Kaufman if (WARN_ON(queue <= 0)) { 81042db09c1SLiad Kaufman IWL_ERR(mvm, "No available queues for tid %d on sta_id %d\n", 81142db09c1SLiad Kaufman tid, cfg.sta_id); 8129f9af3d7SLiad Kaufman return queue; 81342db09c1SLiad Kaufman } 81424afba76SLiad Kaufman 81524afba76SLiad Kaufman /* 81624afba76SLiad Kaufman * Actual en/disablement of aggregations is through the ADD_STA HCMD, 81724afba76SLiad Kaufman * but for configuring the SCD to send A-MPDUs we need to mark the queue 81824afba76SLiad Kaufman * as aggregatable. 81924afba76SLiad Kaufman * Mark all DATA queues as allowing to be aggregated at some point 82024afba76SLiad Kaufman */ 821d5216a28SLiad Kaufman cfg.aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 822d5216a28SLiad Kaufman queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE); 82324afba76SLiad Kaufman 8249794c64fSLiad Kaufman /* 8259794c64fSLiad Kaufman * If this queue was previously inactive (idle) - we need to free it 8269794c64fSLiad Kaufman * first 8279794c64fSLiad Kaufman */ 8289794c64fSLiad Kaufman if (using_inactive_queue) { 82901796ff2SSara Sharon ret = iwl_mvm_free_inactive_queue(mvm, queue, same_sta); 83001796ff2SSara Sharon if (ret) 8319794c64fSLiad Kaufman return ret; 8329794c64fSLiad Kaufman } 8338d98ae6eSLiad Kaufman 83442db09c1SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 83542db09c1SLiad Kaufman "Allocating %squeue #%d to sta %d on tid %d\n", 83642db09c1SLiad Kaufman shared_queue ? "shared " : "", queue, 83742db09c1SLiad Kaufman mvmsta->sta_id, tid); 83842db09c1SLiad Kaufman 83942db09c1SLiad Kaufman if (shared_queue) { 84042db09c1SLiad Kaufman /* Disable any open aggs on this queue */ 84142db09c1SLiad Kaufman disable_agg_tids = iwl_mvm_get_queue_agg_tids(mvm, queue); 84242db09c1SLiad Kaufman 84342db09c1SLiad Kaufman if (disable_agg_tids) { 84442db09c1SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Disabling aggs on queue %d\n", 84542db09c1SLiad Kaufman queue); 84642db09c1SLiad Kaufman iwl_mvm_invalidate_sta_queue(mvm, queue, 84742db09c1SLiad Kaufman disable_agg_tids, false); 84842db09c1SLiad Kaufman } 84942db09c1SLiad Kaufman } 85024afba76SLiad Kaufman 85124afba76SLiad Kaufman ssn = IEEE80211_SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl)); 852dcfbd67bSEmmanuel Grumbach inc_ssn = iwl_mvm_enable_txq(mvm, queue, mac_queue, 853dcfbd67bSEmmanuel Grumbach ssn, &cfg, wdg_timeout); 854dcfbd67bSEmmanuel Grumbach if (inc_ssn) { 855dcfbd67bSEmmanuel Grumbach ssn = (ssn + 1) & IEEE80211_SCTL_SEQ; 856dcfbd67bSEmmanuel Grumbach le16_add_cpu(&hdr->seq_ctrl, 0x10); 857dcfbd67bSEmmanuel Grumbach } 85824afba76SLiad Kaufman 85958f2cc57SLiad Kaufman /* 86058f2cc57SLiad Kaufman * Mark queue as shared in transport if shared 86158f2cc57SLiad Kaufman * Note this has to be done after queue enablement because enablement 86258f2cc57SLiad Kaufman * can also set this value, and there is no indication there to shared 86358f2cc57SLiad Kaufman * queues 86458f2cc57SLiad Kaufman */ 86558f2cc57SLiad Kaufman if (shared_queue) 86658f2cc57SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 86758f2cc57SLiad Kaufman 86824afba76SLiad Kaufman spin_lock_bh(&mvmsta->lock); 869dcfbd67bSEmmanuel Grumbach /* 870dcfbd67bSEmmanuel Grumbach * This looks racy, but it is not. We have only one packet for 871dcfbd67bSEmmanuel Grumbach * this ra/tid in our Tx path since we stop the Qdisc when we 872dcfbd67bSEmmanuel Grumbach * need to allocate a new TFD queue. 873dcfbd67bSEmmanuel Grumbach */ 874dcfbd67bSEmmanuel Grumbach if (inc_ssn) 875dcfbd67bSEmmanuel Grumbach mvmsta->tid_data[tid].seq_number += 0x10; 87624afba76SLiad Kaufman mvmsta->tid_data[tid].txq_id = queue; 8779794c64fSLiad Kaufman mvmsta->tid_data[tid].is_tid_active = true; 87824afba76SLiad Kaufman mvmsta->tfd_queue_msk |= BIT(queue); 8799794c64fSLiad Kaufman queue_state = mvmsta->tid_data[tid].state; 88024afba76SLiad Kaufman 88124afba76SLiad Kaufman if (mvmsta->reserved_queue == queue) 88224afba76SLiad Kaufman mvmsta->reserved_queue = IEEE80211_INVAL_HW_QUEUE; 88324afba76SLiad Kaufman spin_unlock_bh(&mvmsta->lock); 88424afba76SLiad Kaufman 88542db09c1SLiad Kaufman if (!shared_queue) { 886cf961e16SLiad Kaufman ret = iwl_mvm_sta_send_to_fw(mvm, sta, true, STA_MODIFY_QUEUES); 887cf961e16SLiad Kaufman if (ret) 888cf961e16SLiad Kaufman goto out_err; 889cf961e16SLiad Kaufman 8909794c64fSLiad Kaufman /* If we need to re-enable aggregations... */ 89142db09c1SLiad Kaufman if (queue_state == IWL_AGG_ON) { 8929794c64fSLiad Kaufman ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 89342db09c1SLiad Kaufman if (ret) 89442db09c1SLiad Kaufman goto out_err; 89542db09c1SLiad Kaufman } 89658f2cc57SLiad Kaufman } else { 89758f2cc57SLiad Kaufman /* Redirect queue, if needed */ 89858f2cc57SLiad Kaufman ret = iwl_mvm_scd_queue_redirect(mvm, queue, tid, ac, ssn, 89958f2cc57SLiad Kaufman wdg_timeout, false); 90058f2cc57SLiad Kaufman if (ret) 90158f2cc57SLiad Kaufman goto out_err; 90242db09c1SLiad Kaufman } 9039794c64fSLiad Kaufman 90442db09c1SLiad Kaufman return 0; 905cf961e16SLiad Kaufman 906cf961e16SLiad Kaufman out_err: 907cf961e16SLiad Kaufman iwl_mvm_disable_txq(mvm, queue, mac_queue, tid, 0); 908cf961e16SLiad Kaufman 909cf961e16SLiad Kaufman return ret; 91024afba76SLiad Kaufman } 91124afba76SLiad Kaufman 91219aefa45SLiad Kaufman static void iwl_mvm_change_queue_owner(struct iwl_mvm *mvm, int queue) 91319aefa45SLiad Kaufman { 91419aefa45SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 91519aefa45SLiad Kaufman .scd_queue = queue, 91619aefa45SLiad Kaufman .action = SCD_CFG_UPDATE_QUEUE_TID, 91719aefa45SLiad Kaufman }; 91819aefa45SLiad Kaufman int tid; 91919aefa45SLiad Kaufman unsigned long tid_bitmap; 92019aefa45SLiad Kaufman int ret; 92119aefa45SLiad Kaufman 92219aefa45SLiad Kaufman lockdep_assert_held(&mvm->mutex); 92319aefa45SLiad Kaufman 924bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 925bb49701bSSara Sharon return; 926bb49701bSSara Sharon 92719aefa45SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 92819aefa45SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 92919aefa45SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 93019aefa45SLiad Kaufman 93119aefa45SLiad Kaufman if (WARN(!tid_bitmap, "TXQ %d has no tids assigned to it\n", queue)) 93219aefa45SLiad Kaufman return; 93319aefa45SLiad Kaufman 93419aefa45SLiad Kaufman /* Find any TID for queue */ 93519aefa45SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 93619aefa45SLiad Kaufman cmd.tid = tid; 93719aefa45SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 93819aefa45SLiad Kaufman 93919aefa45SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 940341ca402SLiad Kaufman if (ret) { 94119aefa45SLiad Kaufman IWL_ERR(mvm, "Failed to update owner of TXQ %d (ret=%d)\n", 94219aefa45SLiad Kaufman queue, ret); 943341ca402SLiad Kaufman return; 944341ca402SLiad Kaufman } 945341ca402SLiad Kaufman 946341ca402SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 947341ca402SLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 948341ca402SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 94919aefa45SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Changed TXQ %d ownership to tid %d\n", 95019aefa45SLiad Kaufman queue, tid); 95119aefa45SLiad Kaufman } 95219aefa45SLiad Kaufman 9539f9af3d7SLiad Kaufman static void iwl_mvm_unshare_queue(struct iwl_mvm *mvm, int queue) 9549f9af3d7SLiad Kaufman { 9559f9af3d7SLiad Kaufman struct ieee80211_sta *sta; 9569f9af3d7SLiad Kaufman struct iwl_mvm_sta *mvmsta; 957806911daSSharon Dvir u8 sta_id; 9589f9af3d7SLiad Kaufman int tid = -1; 9599f9af3d7SLiad Kaufman unsigned long tid_bitmap; 9609f9af3d7SLiad Kaufman unsigned int wdg_timeout; 9619f9af3d7SLiad Kaufman int ssn; 9629f9af3d7SLiad Kaufman int ret = true; 9639f9af3d7SLiad Kaufman 964bb49701bSSara Sharon /* queue sharing is disabled on new TX path */ 965bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 966bb49701bSSara Sharon return; 967bb49701bSSara Sharon 9689f9af3d7SLiad Kaufman lockdep_assert_held(&mvm->mutex); 9699f9af3d7SLiad Kaufman 9709f9af3d7SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 9719f9af3d7SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 9729f9af3d7SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 9739f9af3d7SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 9749f9af3d7SLiad Kaufman 9759f9af3d7SLiad Kaufman /* Find TID for queue, and make sure it is the only one on the queue */ 9769f9af3d7SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 9779f9af3d7SLiad Kaufman if (tid_bitmap != BIT(tid)) { 9789f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to unshare q %d, active tids=0x%lx\n", 9799f9af3d7SLiad Kaufman queue, tid_bitmap); 9809f9af3d7SLiad Kaufman return; 9819f9af3d7SLiad Kaufman } 9829f9af3d7SLiad Kaufman 9839f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Unsharing TXQ %d, keeping tid %d\n", queue, 9849f9af3d7SLiad Kaufman tid); 9859f9af3d7SLiad Kaufman 9869f9af3d7SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 9879f9af3d7SLiad Kaufman lockdep_is_held(&mvm->mutex)); 9889f9af3d7SLiad Kaufman 9899f9af3d7SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 9909f9af3d7SLiad Kaufman return; 9919f9af3d7SLiad Kaufman 9929f9af3d7SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 9939f9af3d7SLiad Kaufman wdg_timeout = iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 9949f9af3d7SLiad Kaufman 9959f9af3d7SLiad Kaufman ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 9969f9af3d7SLiad Kaufman 9979f9af3d7SLiad Kaufman ret = iwl_mvm_scd_queue_redirect(mvm, queue, tid, 9989f9af3d7SLiad Kaufman tid_to_mac80211_ac[tid], ssn, 9999f9af3d7SLiad Kaufman wdg_timeout, true); 10009f9af3d7SLiad Kaufman if (ret) { 10019f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to redirect TXQ %d\n", queue); 10029f9af3d7SLiad Kaufman return; 10039f9af3d7SLiad Kaufman } 10049f9af3d7SLiad Kaufman 10059f9af3d7SLiad Kaufman /* If aggs should be turned back on - do it */ 10069f9af3d7SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) { 10079cd70e80SEmmanuel Grumbach struct iwl_mvm_add_sta_cmd cmd = {0}; 10089f9af3d7SLiad Kaufman 10099f9af3d7SLiad Kaufman mvmsta->tid_disable_agg &= ~BIT(tid); 10109f9af3d7SLiad Kaufman 10119f9af3d7SLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 10129f9af3d7SLiad Kaufman cmd.sta_id = mvmsta->sta_id; 10139f9af3d7SLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 10149f9af3d7SLiad Kaufman cmd.modify_mask = STA_MODIFY_TID_DISABLE_TX; 10159f9af3d7SLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 10169f9af3d7SLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 10179f9af3d7SLiad Kaufman 10189f9af3d7SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 10199f9af3d7SLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), &cmd); 10209f9af3d7SLiad Kaufman if (!ret) { 10219f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 10229f9af3d7SLiad Kaufman "TXQ #%d is now aggregated again\n", 10239f9af3d7SLiad Kaufman queue); 10249f9af3d7SLiad Kaufman 10259f9af3d7SLiad Kaufman /* Mark queue intenally as aggregating again */ 10269f9af3d7SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, false); 10279f9af3d7SLiad Kaufman } 10289f9af3d7SLiad Kaufman } 10299f9af3d7SLiad Kaufman 10309f9af3d7SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 10319f9af3d7SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 10329f9af3d7SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 10339f9af3d7SLiad Kaufman } 10349f9af3d7SLiad Kaufman 103524afba76SLiad Kaufman static inline u8 iwl_mvm_tid_to_ac_queue(int tid) 103624afba76SLiad Kaufman { 103724afba76SLiad Kaufman if (tid == IWL_MAX_TID_COUNT) 103824afba76SLiad Kaufman return IEEE80211_AC_VO; /* MGMT */ 103924afba76SLiad Kaufman 104024afba76SLiad Kaufman return tid_to_mac80211_ac[tid]; 104124afba76SLiad Kaufman } 104224afba76SLiad Kaufman 104324afba76SLiad Kaufman static void iwl_mvm_tx_deferred_stream(struct iwl_mvm *mvm, 104424afba76SLiad Kaufman struct ieee80211_sta *sta, int tid) 104524afba76SLiad Kaufman { 104624afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 104724afba76SLiad Kaufman struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 104824afba76SLiad Kaufman struct sk_buff *skb; 104924afba76SLiad Kaufman struct ieee80211_hdr *hdr; 105024afba76SLiad Kaufman struct sk_buff_head deferred_tx; 105124afba76SLiad Kaufman u8 mac_queue; 105224afba76SLiad Kaufman bool no_queue = false; /* Marks if there is a problem with the queue */ 105324afba76SLiad Kaufman u8 ac; 105424afba76SLiad Kaufman 105524afba76SLiad Kaufman lockdep_assert_held(&mvm->mutex); 105624afba76SLiad Kaufman 105724afba76SLiad Kaufman skb = skb_peek(&tid_data->deferred_tx_frames); 105824afba76SLiad Kaufman if (!skb) 105924afba76SLiad Kaufman return; 106024afba76SLiad Kaufman hdr = (void *)skb->data; 106124afba76SLiad Kaufman 106224afba76SLiad Kaufman ac = iwl_mvm_tid_to_ac_queue(tid); 106324afba76SLiad Kaufman mac_queue = IEEE80211_SKB_CB(skb)->hw_queue; 106424afba76SLiad Kaufman 10656862fceeSSara Sharon if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE && 106624afba76SLiad Kaufman iwl_mvm_sta_alloc_queue(mvm, sta, ac, tid, hdr)) { 106724afba76SLiad Kaufman IWL_ERR(mvm, 106824afba76SLiad Kaufman "Can't alloc TXQ for sta %d tid %d - dropping frame\n", 106924afba76SLiad Kaufman mvmsta->sta_id, tid); 107024afba76SLiad Kaufman 107124afba76SLiad Kaufman /* 107224afba76SLiad Kaufman * Mark queue as problematic so later the deferred traffic is 107324afba76SLiad Kaufman * freed, as we can do nothing with it 107424afba76SLiad Kaufman */ 107524afba76SLiad Kaufman no_queue = true; 107624afba76SLiad Kaufman } 107724afba76SLiad Kaufman 107824afba76SLiad Kaufman __skb_queue_head_init(&deferred_tx); 107924afba76SLiad Kaufman 1080d2515a99SLiad Kaufman /* Disable bottom-halves when entering TX path */ 1081d2515a99SLiad Kaufman local_bh_disable(); 108224afba76SLiad Kaufman spin_lock(&mvmsta->lock); 108324afba76SLiad Kaufman skb_queue_splice_init(&tid_data->deferred_tx_frames, &deferred_tx); 1084ad5de737SLiad Kaufman mvmsta->deferred_traffic_tid_map &= ~BIT(tid); 108524afba76SLiad Kaufman spin_unlock(&mvmsta->lock); 108624afba76SLiad Kaufman 108724afba76SLiad Kaufman while ((skb = __skb_dequeue(&deferred_tx))) 108824afba76SLiad Kaufman if (no_queue || iwl_mvm_tx_skb(mvm, skb, sta)) 108924afba76SLiad Kaufman ieee80211_free_txskb(mvm->hw, skb); 109024afba76SLiad Kaufman local_bh_enable(); 109124afba76SLiad Kaufman 109224afba76SLiad Kaufman /* Wake queue */ 109324afba76SLiad Kaufman iwl_mvm_start_mac_queues(mvm, BIT(mac_queue)); 109424afba76SLiad Kaufman } 109524afba76SLiad Kaufman 109624afba76SLiad Kaufman void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk) 109724afba76SLiad Kaufman { 109824afba76SLiad Kaufman struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, 109924afba76SLiad Kaufman add_stream_wk); 110024afba76SLiad Kaufman struct ieee80211_sta *sta; 110124afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta; 110224afba76SLiad Kaufman unsigned long deferred_tid_traffic; 11039f9af3d7SLiad Kaufman int queue, sta_id, tid; 110424afba76SLiad Kaufman 11059794c64fSLiad Kaufman /* Check inactivity of queues */ 11069794c64fSLiad Kaufman iwl_mvm_inactivity_check(mvm); 11079794c64fSLiad Kaufman 110824afba76SLiad Kaufman mutex_lock(&mvm->mutex); 110924afba76SLiad Kaufman 111034e10860SSara Sharon /* No queue reconfiguration in TVQM mode */ 111134e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 111234e10860SSara Sharon goto alloc_queues; 111334e10860SSara Sharon 11149f9af3d7SLiad Kaufman /* Reconfigure queues requiring reconfiguation */ 111534e10860SSara Sharon for (queue = 0; queue < ARRAY_SIZE(mvm->queue_info); queue++) { 11169f9af3d7SLiad Kaufman bool reconfig; 111719aefa45SLiad Kaufman bool change_owner; 11189f9af3d7SLiad Kaufman 11199f9af3d7SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 11209f9af3d7SLiad Kaufman reconfig = (mvm->queue_info[queue].status == 11219f9af3d7SLiad Kaufman IWL_MVM_QUEUE_RECONFIGURING); 112219aefa45SLiad Kaufman 112319aefa45SLiad Kaufman /* 112419aefa45SLiad Kaufman * We need to take into account a situation in which a TXQ was 112519aefa45SLiad Kaufman * allocated to TID x, and then turned shared by adding TIDs y 112619aefa45SLiad Kaufman * and z. If TID x becomes inactive and is removed from the TXQ, 112719aefa45SLiad Kaufman * ownership must be given to one of the remaining TIDs. 112819aefa45SLiad Kaufman * This is mainly because if TID x continues - a new queue can't 112919aefa45SLiad Kaufman * be allocated for it as long as it is an owner of another TXQ. 113019aefa45SLiad Kaufman */ 113119aefa45SLiad Kaufman change_owner = !(mvm->queue_info[queue].tid_bitmap & 113219aefa45SLiad Kaufman BIT(mvm->queue_info[queue].txq_tid)) && 113319aefa45SLiad Kaufman (mvm->queue_info[queue].status == 113419aefa45SLiad Kaufman IWL_MVM_QUEUE_SHARED); 11359f9af3d7SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 11369f9af3d7SLiad Kaufman 11379f9af3d7SLiad Kaufman if (reconfig) 11389f9af3d7SLiad Kaufman iwl_mvm_unshare_queue(mvm, queue); 113919aefa45SLiad Kaufman else if (change_owner) 114019aefa45SLiad Kaufman iwl_mvm_change_queue_owner(mvm, queue); 11419f9af3d7SLiad Kaufman } 11429f9af3d7SLiad Kaufman 114334e10860SSara Sharon alloc_queues: 114424afba76SLiad Kaufman /* Go over all stations with deferred traffic */ 114524afba76SLiad Kaufman for_each_set_bit(sta_id, mvm->sta_deferred_frames, 114624afba76SLiad Kaufman IWL_MVM_STATION_COUNT) { 114724afba76SLiad Kaufman clear_bit(sta_id, mvm->sta_deferred_frames); 114824afba76SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 114924afba76SLiad Kaufman lockdep_is_held(&mvm->mutex)); 115024afba76SLiad Kaufman if (IS_ERR_OR_NULL(sta)) 115124afba76SLiad Kaufman continue; 115224afba76SLiad Kaufman 115324afba76SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 115424afba76SLiad Kaufman deferred_tid_traffic = mvmsta->deferred_traffic_tid_map; 115524afba76SLiad Kaufman 115624afba76SLiad Kaufman for_each_set_bit(tid, &deferred_tid_traffic, 115724afba76SLiad Kaufman IWL_MAX_TID_COUNT + 1) 115824afba76SLiad Kaufman iwl_mvm_tx_deferred_stream(mvm, sta, tid); 115924afba76SLiad Kaufman } 116024afba76SLiad Kaufman 116124afba76SLiad Kaufman mutex_unlock(&mvm->mutex); 116224afba76SLiad Kaufman } 116324afba76SLiad Kaufman 116424afba76SLiad Kaufman static int iwl_mvm_reserve_sta_stream(struct iwl_mvm *mvm, 1165d5216a28SLiad Kaufman struct ieee80211_sta *sta, 1166d5216a28SLiad Kaufman enum nl80211_iftype vif_type) 116724afba76SLiad Kaufman { 116824afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 116924afba76SLiad Kaufman int queue; 117001796ff2SSara Sharon bool using_inactive_queue = false, same_sta = false; 117124afba76SLiad Kaufman 1172396952eeSSara Sharon /* queue reserving is disabled on new TX path */ 1173396952eeSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1174396952eeSSara Sharon return 0; 1175396952eeSSara Sharon 11769794c64fSLiad Kaufman /* 11779794c64fSLiad Kaufman * Check for inactive queues, so we don't reach a situation where we 11789794c64fSLiad Kaufman * can't add a STA due to a shortage in queues that doesn't really exist 11799794c64fSLiad Kaufman */ 11809794c64fSLiad Kaufman iwl_mvm_inactivity_check(mvm); 11819794c64fSLiad Kaufman 118224afba76SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 118324afba76SLiad Kaufman 118424afba76SLiad Kaufman /* Make sure we have free resources for this STA */ 1185d5216a28SLiad Kaufman if (vif_type == NL80211_IFTYPE_STATION && !sta->tdls && 1186d5216a28SLiad Kaufman !mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].hw_queue_refcount && 1187cf961e16SLiad Kaufman (mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].status == 1188cf961e16SLiad Kaufman IWL_MVM_QUEUE_FREE)) 1189d5216a28SLiad Kaufman queue = IWL_MVM_DQA_BSS_CLIENT_QUEUE; 1190d5216a28SLiad Kaufman else 11919794c64fSLiad Kaufman queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 11929794c64fSLiad Kaufman IWL_MVM_DQA_MIN_DATA_QUEUE, 119324afba76SLiad Kaufman IWL_MVM_DQA_MAX_DATA_QUEUE); 119424afba76SLiad Kaufman if (queue < 0) { 119524afba76SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 119624afba76SLiad Kaufman IWL_ERR(mvm, "No available queues for new station\n"); 119724afba76SLiad Kaufman return -ENOSPC; 119801796ff2SSara Sharon } else if (mvm->queue_info[queue].status == IWL_MVM_QUEUE_INACTIVE) { 119901796ff2SSara Sharon /* 120001796ff2SSara Sharon * If this queue is already allocated but inactive we'll need to 120101796ff2SSara Sharon * first free this queue before enabling it again, we'll mark 120201796ff2SSara Sharon * it as reserved to make sure no new traffic arrives on it 120301796ff2SSara Sharon */ 120401796ff2SSara Sharon using_inactive_queue = true; 120501796ff2SSara Sharon same_sta = mvm->queue_info[queue].ra_sta_id == mvmsta->sta_id; 120624afba76SLiad Kaufman } 1207cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_RESERVED; 120824afba76SLiad Kaufman 120924afba76SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 121024afba76SLiad Kaufman 121124afba76SLiad Kaufman mvmsta->reserved_queue = queue; 121224afba76SLiad Kaufman 121301796ff2SSara Sharon if (using_inactive_queue) 121401796ff2SSara Sharon iwl_mvm_free_inactive_queue(mvm, queue, same_sta); 121501796ff2SSara Sharon 121624afba76SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Reserving data queue #%d for sta_id %d\n", 121724afba76SLiad Kaufman queue, mvmsta->sta_id); 121824afba76SLiad Kaufman 121924afba76SLiad Kaufman return 0; 122024afba76SLiad Kaufman } 122124afba76SLiad Kaufman 12228d98ae6eSLiad Kaufman /* 12238d98ae6eSLiad Kaufman * In DQA mode, after a HW restart the queues should be allocated as before, in 12248d98ae6eSLiad Kaufman * order to avoid race conditions when there are shared queues. This function 12258d98ae6eSLiad Kaufman * does the re-mapping and queue allocation. 12268d98ae6eSLiad Kaufman * 12278d98ae6eSLiad Kaufman * Note that re-enabling aggregations isn't done in this function. 12288d98ae6eSLiad Kaufman */ 12298d98ae6eSLiad Kaufman static void iwl_mvm_realloc_queues_after_restart(struct iwl_mvm *mvm, 12308d98ae6eSLiad Kaufman struct iwl_mvm_sta *mvm_sta) 12318d98ae6eSLiad Kaufman { 12328d98ae6eSLiad Kaufman unsigned int wdg_timeout = 12338d98ae6eSLiad Kaufman iwl_mvm_get_wd_timeout(mvm, mvm_sta->vif, false, false); 12348d98ae6eSLiad Kaufman int i; 12358d98ae6eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 12368d98ae6eSLiad Kaufman .sta_id = mvm_sta->sta_id, 12378d98ae6eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 12388d98ae6eSLiad Kaufman }; 12398d98ae6eSLiad Kaufman 124003c902bfSJohannes Berg /* Make sure reserved queue is still marked as such (if allocated) */ 124103c902bfSJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) 12428d98ae6eSLiad Kaufman mvm->queue_info[mvm_sta->reserved_queue].status = 12438d98ae6eSLiad Kaufman IWL_MVM_QUEUE_RESERVED; 12448d98ae6eSLiad Kaufman 12458d98ae6eSLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 12468d98ae6eSLiad Kaufman struct iwl_mvm_tid_data *tid_data = &mvm_sta->tid_data[i]; 12478d98ae6eSLiad Kaufman int txq_id = tid_data->txq_id; 12488d98ae6eSLiad Kaufman int ac; 12498d98ae6eSLiad Kaufman u8 mac_queue; 12508d98ae6eSLiad Kaufman 12516862fceeSSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 12528d98ae6eSLiad Kaufman continue; 12538d98ae6eSLiad Kaufman 12548d98ae6eSLiad Kaufman skb_queue_head_init(&tid_data->deferred_tx_frames); 12558d98ae6eSLiad Kaufman 12568d98ae6eSLiad Kaufman ac = tid_to_mac80211_ac[i]; 12578d98ae6eSLiad Kaufman mac_queue = mvm_sta->vif->hw_queue[ac]; 12588d98ae6eSLiad Kaufman 1259310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1260310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 1261310181ecSSara Sharon "Re-mapping sta %d tid %d\n", 1262310181ecSSara Sharon mvm_sta->sta_id, i); 1263310181ecSSara Sharon txq_id = iwl_mvm_tvqm_enable_txq(mvm, mac_queue, 1264310181ecSSara Sharon mvm_sta->sta_id, 1265310181ecSSara Sharon i, wdg_timeout); 1266310181ecSSara Sharon tid_data->txq_id = txq_id; 12675d39051aSLiad Kaufman 12685d39051aSLiad Kaufman /* 12695d39051aSLiad Kaufman * Since we don't set the seq number after reset, and HW 12705d39051aSLiad Kaufman * sets it now, FW reset will cause the seq num to start 12715d39051aSLiad Kaufman * at 0 again, so driver will need to update it 12725d39051aSLiad Kaufman * internally as well, so it keeps in sync with real val 12735d39051aSLiad Kaufman */ 12745d39051aSLiad Kaufman tid_data->seq_number = 0; 1275310181ecSSara Sharon } else { 1276310181ecSSara Sharon u16 seq = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 1277310181ecSSara Sharon 12788d98ae6eSLiad Kaufman cfg.tid = i; 1279cf6c6ea3SEmmanuel Grumbach cfg.fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac); 12808d98ae6eSLiad Kaufman cfg.aggregate = (txq_id >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1281310181ecSSara Sharon txq_id == 1282310181ecSSara Sharon IWL_MVM_DQA_BSS_CLIENT_QUEUE); 12838d98ae6eSLiad Kaufman 12848d98ae6eSLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 12858d98ae6eSLiad Kaufman "Re-mapping sta %d tid %d to queue %d\n", 12868d98ae6eSLiad Kaufman mvm_sta->sta_id, i, txq_id); 12878d98ae6eSLiad Kaufman 1288310181ecSSara Sharon iwl_mvm_enable_txq(mvm, txq_id, mac_queue, seq, &cfg, 1289310181ecSSara Sharon wdg_timeout); 12908d98ae6eSLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_READY; 12918d98ae6eSLiad Kaufman } 129234e10860SSara Sharon } 12938d98ae6eSLiad Kaufman } 12948d98ae6eSLiad Kaufman 1295732d06e9SShaul Triebitz static int iwl_mvm_add_int_sta_common(struct iwl_mvm *mvm, 1296732d06e9SShaul Triebitz struct iwl_mvm_int_sta *sta, 1297732d06e9SShaul Triebitz const u8 *addr, 1298732d06e9SShaul Triebitz u16 mac_id, u16 color) 1299732d06e9SShaul Triebitz { 1300732d06e9SShaul Triebitz struct iwl_mvm_add_sta_cmd cmd; 1301732d06e9SShaul Triebitz int ret; 13023f497de9SLuca Coelho u32 status = ADD_STA_SUCCESS; 1303732d06e9SShaul Triebitz 1304732d06e9SShaul Triebitz lockdep_assert_held(&mvm->mutex); 1305732d06e9SShaul Triebitz 1306732d06e9SShaul Triebitz memset(&cmd, 0, sizeof(cmd)); 1307732d06e9SShaul Triebitz cmd.sta_id = sta->sta_id; 1308732d06e9SShaul Triebitz cmd.mac_id_n_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mac_id, 1309732d06e9SShaul Triebitz color)); 1310732d06e9SShaul Triebitz if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 1311732d06e9SShaul Triebitz cmd.station_type = sta->type; 1312732d06e9SShaul Triebitz 1313732d06e9SShaul Triebitz if (!iwl_mvm_has_new_tx_api(mvm)) 1314732d06e9SShaul Triebitz cmd.tfd_queue_msk = cpu_to_le32(sta->tfd_queue_msk); 1315732d06e9SShaul Triebitz cmd.tid_disable_tx = cpu_to_le16(0xffff); 1316732d06e9SShaul Triebitz 1317732d06e9SShaul Triebitz if (addr) 1318732d06e9SShaul Triebitz memcpy(cmd.addr, addr, ETH_ALEN); 1319732d06e9SShaul Triebitz 1320732d06e9SShaul Triebitz ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1321732d06e9SShaul Triebitz iwl_mvm_add_sta_cmd_size(mvm), 1322732d06e9SShaul Triebitz &cmd, &status); 1323732d06e9SShaul Triebitz if (ret) 1324732d06e9SShaul Triebitz return ret; 1325732d06e9SShaul Triebitz 1326732d06e9SShaul Triebitz switch (status & IWL_ADD_STA_STATUS_MASK) { 1327732d06e9SShaul Triebitz case ADD_STA_SUCCESS: 1328732d06e9SShaul Triebitz IWL_DEBUG_INFO(mvm, "Internal station added.\n"); 1329732d06e9SShaul Triebitz return 0; 1330732d06e9SShaul Triebitz default: 1331732d06e9SShaul Triebitz ret = -EIO; 1332732d06e9SShaul Triebitz IWL_ERR(mvm, "Add internal station failed, status=0x%x\n", 1333732d06e9SShaul Triebitz status); 1334732d06e9SShaul Triebitz break; 1335732d06e9SShaul Triebitz } 1336732d06e9SShaul Triebitz return ret; 1337732d06e9SShaul Triebitz } 1338732d06e9SShaul Triebitz 1339e705c121SKalle Valo int iwl_mvm_add_sta(struct iwl_mvm *mvm, 1340e705c121SKalle Valo struct ieee80211_vif *vif, 1341e705c121SKalle Valo struct ieee80211_sta *sta) 1342e705c121SKalle Valo { 1343e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1344e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1345a571f5f6SSara Sharon struct iwl_mvm_rxq_dup_data *dup_data; 1346e705c121SKalle Valo int i, ret, sta_id; 1347732d06e9SShaul Triebitz bool sta_update = false; 1348732d06e9SShaul Triebitz unsigned int sta_flags = 0; 1349e705c121SKalle Valo 1350e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1351e705c121SKalle Valo 1352e705c121SKalle Valo if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1353e705c121SKalle Valo sta_id = iwl_mvm_find_free_sta_id(mvm, 1354e705c121SKalle Valo ieee80211_vif_type_p2p(vif)); 1355e705c121SKalle Valo else 1356e705c121SKalle Valo sta_id = mvm_sta->sta_id; 1357e705c121SKalle Valo 13580ae98812SSara Sharon if (sta_id == IWL_MVM_INVALID_STA) 1359e705c121SKalle Valo return -ENOSPC; 1360e705c121SKalle Valo 1361e705c121SKalle Valo spin_lock_init(&mvm_sta->lock); 1362e705c121SKalle Valo 1363c8f54701SJohannes Berg /* if this is a HW restart re-alloc existing queues */ 1364c8f54701SJohannes Berg if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1365732d06e9SShaul Triebitz struct iwl_mvm_int_sta tmp_sta = { 1366732d06e9SShaul Triebitz .sta_id = sta_id, 1367732d06e9SShaul Triebitz .type = mvm_sta->sta_type, 1368732d06e9SShaul Triebitz }; 1369732d06e9SShaul Triebitz 1370732d06e9SShaul Triebitz /* 1371732d06e9SShaul Triebitz * First add an empty station since allocating 1372732d06e9SShaul Triebitz * a queue requires a valid station 1373732d06e9SShaul Triebitz */ 1374732d06e9SShaul Triebitz ret = iwl_mvm_add_int_sta_common(mvm, &tmp_sta, sta->addr, 1375732d06e9SShaul Triebitz mvmvif->id, mvmvif->color); 1376732d06e9SShaul Triebitz if (ret) 1377732d06e9SShaul Triebitz goto err; 1378732d06e9SShaul Triebitz 13798d98ae6eSLiad Kaufman iwl_mvm_realloc_queues_after_restart(mvm, mvm_sta); 1380732d06e9SShaul Triebitz sta_update = true; 1381732d06e9SShaul Triebitz sta_flags = iwl_mvm_has_new_tx_api(mvm) ? 0 : STA_MODIFY_QUEUES; 13828d98ae6eSLiad Kaufman goto update_fw; 13838d98ae6eSLiad Kaufman } 13848d98ae6eSLiad Kaufman 1385e705c121SKalle Valo mvm_sta->sta_id = sta_id; 1386e705c121SKalle Valo mvm_sta->mac_id_n_color = FW_CMD_ID_AND_COLOR(mvmvif->id, 1387e705c121SKalle Valo mvmvif->color); 1388e705c121SKalle Valo mvm_sta->vif = vif; 1389a58bb468SLiad Kaufman if (!mvm->trans->cfg->gen2) 1390e705c121SKalle Valo mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_DEF; 1391a58bb468SLiad Kaufman else 1392a58bb468SLiad Kaufman mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF; 1393e705c121SKalle Valo mvm_sta->tx_protection = 0; 1394e705c121SKalle Valo mvm_sta->tt_tx_protection = false; 1395ced19f26SSara Sharon mvm_sta->sta_type = sta->tdls ? IWL_STA_TDLS_LINK : IWL_STA_LINK; 1396e705c121SKalle Valo 1397e705c121SKalle Valo /* HW restart, don't assume the memory has been zeroed */ 1398e705c121SKalle Valo mvm_sta->tid_disable_agg = 0xffff; /* No aggs at first */ 1399e705c121SKalle Valo mvm_sta->tfd_queue_msk = 0; 1400e705c121SKalle Valo 1401e705c121SKalle Valo /* for HW restart - reset everything but the sequence number */ 140224afba76SLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 1403e705c121SKalle Valo u16 seq = mvm_sta->tid_data[i].seq_number; 1404e705c121SKalle Valo memset(&mvm_sta->tid_data[i], 0, sizeof(mvm_sta->tid_data[i])); 1405e705c121SKalle Valo mvm_sta->tid_data[i].seq_number = seq; 140624afba76SLiad Kaufman 140724afba76SLiad Kaufman /* 140824afba76SLiad Kaufman * Mark all queues for this STA as unallocated and defer TX 140924afba76SLiad Kaufman * frames until the queue is allocated 141024afba76SLiad Kaufman */ 14116862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 141224afba76SLiad Kaufman skb_queue_head_init(&mvm_sta->tid_data[i].deferred_tx_frames); 1413e705c121SKalle Valo } 141424afba76SLiad Kaufman mvm_sta->deferred_traffic_tid_map = 0; 1415e705c121SKalle Valo mvm_sta->agg_tids = 0; 1416e705c121SKalle Valo 1417a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && 1418a571f5f6SSara Sharon !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 141992c4dca6SJohannes Berg int q; 142092c4dca6SJohannes Berg 1421a571f5f6SSara Sharon dup_data = kcalloc(mvm->trans->num_rx_queues, 142292c4dca6SJohannes Berg sizeof(*dup_data), GFP_KERNEL); 1423a571f5f6SSara Sharon if (!dup_data) 1424a571f5f6SSara Sharon return -ENOMEM; 142592c4dca6SJohannes Berg /* 142692c4dca6SJohannes Berg * Initialize all the last_seq values to 0xffff which can never 142792c4dca6SJohannes Berg * compare equal to the frame's seq_ctrl in the check in 142892c4dca6SJohannes Berg * iwl_mvm_is_dup() since the lower 4 bits are the fragment 142992c4dca6SJohannes Berg * number and fragmented packets don't reach that function. 143092c4dca6SJohannes Berg * 143192c4dca6SJohannes Berg * This thus allows receiving a packet with seqno 0 and the 143292c4dca6SJohannes Berg * retry bit set as the very first packet on a new TID. 143392c4dca6SJohannes Berg */ 143492c4dca6SJohannes Berg for (q = 0; q < mvm->trans->num_rx_queues; q++) 143592c4dca6SJohannes Berg memset(dup_data[q].last_seq, 0xff, 143692c4dca6SJohannes Berg sizeof(dup_data[q].last_seq)); 1437a571f5f6SSara Sharon mvm_sta->dup_data = dup_data; 1438a571f5f6SSara Sharon } 1439a571f5f6SSara Sharon 1440c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 1441d5216a28SLiad Kaufman ret = iwl_mvm_reserve_sta_stream(mvm, sta, 1442d5216a28SLiad Kaufman ieee80211_vif_type_p2p(vif)); 144324afba76SLiad Kaufman if (ret) 144424afba76SLiad Kaufman goto err; 144524afba76SLiad Kaufman } 144624afba76SLiad Kaufman 14479f66a397SGregory Greenman /* 14489f66a397SGregory Greenman * if rs is registered with mac80211, then "add station" will be handled 14499f66a397SGregory Greenman * via the corresponding ops, otherwise need to notify rate scaling here 14509f66a397SGregory Greenman */ 14514243edb4SEmmanuel Grumbach if (iwl_mvm_has_tlc_offload(mvm)) 14529f66a397SGregory Greenman iwl_mvm_rs_add_sta(mvm, mvm_sta); 14539f66a397SGregory Greenman 14548d98ae6eSLiad Kaufman update_fw: 1455732d06e9SShaul Triebitz ret = iwl_mvm_sta_send_to_fw(mvm, sta, sta_update, sta_flags); 1456e705c121SKalle Valo if (ret) 1457e705c121SKalle Valo goto err; 1458e705c121SKalle Valo 1459e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) { 1460e705c121SKalle Valo if (!sta->tdls) { 14610ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id != IWL_MVM_INVALID_STA); 1462e705c121SKalle Valo mvmvif->ap_sta_id = sta_id; 1463e705c121SKalle Valo } else { 14640ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id == IWL_MVM_INVALID_STA); 1465e705c121SKalle Valo } 1466e705c121SKalle Valo } 1467e705c121SKalle Valo 1468e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], sta); 1469e705c121SKalle Valo 1470e705c121SKalle Valo return 0; 1471e705c121SKalle Valo 1472e705c121SKalle Valo err: 1473e705c121SKalle Valo return ret; 1474e705c121SKalle Valo } 1475e705c121SKalle Valo 1476e705c121SKalle Valo int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, 1477e705c121SKalle Valo bool drain) 1478e705c121SKalle Valo { 1479e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 1480e705c121SKalle Valo int ret; 1481e705c121SKalle Valo u32 status; 1482e705c121SKalle Valo 1483e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1484e705c121SKalle Valo 1485e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 1486e705c121SKalle Valo cmd.sta_id = mvmsta->sta_id; 1487e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 1488e705c121SKalle Valo cmd.station_flags = drain ? cpu_to_le32(STA_FLG_DRAIN_FLOW) : 0; 1489e705c121SKalle Valo cmd.station_flags_msk = cpu_to_le32(STA_FLG_DRAIN_FLOW); 1490e705c121SKalle Valo 1491e705c121SKalle Valo status = ADD_STA_SUCCESS; 1492854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1493854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 1494e705c121SKalle Valo &cmd, &status); 1495e705c121SKalle Valo if (ret) 1496e705c121SKalle Valo return ret; 1497e705c121SKalle Valo 1498837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 1499e705c121SKalle Valo case ADD_STA_SUCCESS: 1500e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "Frames for staid %d will drained in fw\n", 1501e705c121SKalle Valo mvmsta->sta_id); 1502e705c121SKalle Valo break; 1503e705c121SKalle Valo default: 1504e705c121SKalle Valo ret = -EIO; 1505e705c121SKalle Valo IWL_ERR(mvm, "Couldn't drain frames for staid %d\n", 1506e705c121SKalle Valo mvmsta->sta_id); 1507e705c121SKalle Valo break; 1508e705c121SKalle Valo } 1509e705c121SKalle Valo 1510e705c121SKalle Valo return ret; 1511e705c121SKalle Valo } 1512e705c121SKalle Valo 1513e705c121SKalle Valo /* 1514e705c121SKalle Valo * Remove a station from the FW table. Before sending the command to remove 1515e705c121SKalle Valo * the station validate that the station is indeed known to the driver (sanity 1516e705c121SKalle Valo * only). 1517e705c121SKalle Valo */ 1518e705c121SKalle Valo static int iwl_mvm_rm_sta_common(struct iwl_mvm *mvm, u8 sta_id) 1519e705c121SKalle Valo { 1520e705c121SKalle Valo struct ieee80211_sta *sta; 1521e705c121SKalle Valo struct iwl_mvm_rm_sta_cmd rm_sta_cmd = { 1522e705c121SKalle Valo .sta_id = sta_id, 1523e705c121SKalle Valo }; 1524e705c121SKalle Valo int ret; 1525e705c121SKalle Valo 1526e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 1527e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1528e705c121SKalle Valo 1529e705c121SKalle Valo /* Note: internal stations are marked as error values */ 1530e705c121SKalle Valo if (!sta) { 1531e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 1532e705c121SKalle Valo return -EINVAL; 1533e705c121SKalle Valo } 1534e705c121SKalle Valo 1535e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, REMOVE_STA, 0, 1536e705c121SKalle Valo sizeof(rm_sta_cmd), &rm_sta_cmd); 1537e705c121SKalle Valo if (ret) { 1538e705c121SKalle Valo IWL_ERR(mvm, "Failed to remove station. Id=%d\n", sta_id); 1539e705c121SKalle Valo return ret; 1540e705c121SKalle Valo } 1541e705c121SKalle Valo 1542e705c121SKalle Valo return 0; 1543e705c121SKalle Valo } 1544e705c121SKalle Valo 154524afba76SLiad Kaufman static void iwl_mvm_disable_sta_queues(struct iwl_mvm *mvm, 154624afba76SLiad Kaufman struct ieee80211_vif *vif, 154724afba76SLiad Kaufman struct iwl_mvm_sta *mvm_sta) 154824afba76SLiad Kaufman { 154924afba76SLiad Kaufman int ac; 155024afba76SLiad Kaufman int i; 155124afba76SLiad Kaufman 155224afba76SLiad Kaufman lockdep_assert_held(&mvm->mutex); 155324afba76SLiad Kaufman 155424afba76SLiad Kaufman for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 15556862fceeSSara Sharon if (mvm_sta->tid_data[i].txq_id == IWL_MVM_INVALID_QUEUE) 155624afba76SLiad Kaufman continue; 155724afba76SLiad Kaufman 155824afba76SLiad Kaufman ac = iwl_mvm_tid_to_ac_queue(i); 155924afba76SLiad Kaufman iwl_mvm_disable_txq(mvm, mvm_sta->tid_data[i].txq_id, 156024afba76SLiad Kaufman vif->hw_queue[ac], i, 0); 15616862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 156224afba76SLiad Kaufman } 156324afba76SLiad Kaufman } 156424afba76SLiad Kaufman 1565d6d517b7SSara Sharon int iwl_mvm_wait_sta_queues_empty(struct iwl_mvm *mvm, 1566d6d517b7SSara Sharon struct iwl_mvm_sta *mvm_sta) 1567d6d517b7SSara Sharon { 1568bec9522aSSharon Dvir int i; 1569d6d517b7SSara Sharon 1570d6d517b7SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 1571d6d517b7SSara Sharon u16 txq_id; 1572bec9522aSSharon Dvir int ret; 1573d6d517b7SSara Sharon 1574d6d517b7SSara Sharon spin_lock_bh(&mvm_sta->lock); 1575d6d517b7SSara Sharon txq_id = mvm_sta->tid_data[i].txq_id; 1576d6d517b7SSara Sharon spin_unlock_bh(&mvm_sta->lock); 1577d6d517b7SSara Sharon 1578d6d517b7SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 1579d6d517b7SSara Sharon continue; 1580d6d517b7SSara Sharon 1581d6d517b7SSara Sharon ret = iwl_trans_wait_txq_empty(mvm->trans, txq_id); 1582d6d517b7SSara Sharon if (ret) 1583bec9522aSSharon Dvir return ret; 1584d6d517b7SSara Sharon } 1585d6d517b7SSara Sharon 1586bec9522aSSharon Dvir return 0; 1587d6d517b7SSara Sharon } 1588d6d517b7SSara Sharon 1589e705c121SKalle Valo int iwl_mvm_rm_sta(struct iwl_mvm *mvm, 1590e705c121SKalle Valo struct ieee80211_vif *vif, 1591e705c121SKalle Valo struct ieee80211_sta *sta) 1592e705c121SKalle Valo { 1593e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1594e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 159594c3e614SSara Sharon u8 sta_id = mvm_sta->sta_id; 1596e705c121SKalle Valo int ret; 1597e705c121SKalle Valo 1598e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1599e705c121SKalle Valo 1600a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm)) 1601a571f5f6SSara Sharon kfree(mvm_sta->dup_data); 1602a571f5f6SSara Sharon 1603e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, true); 1604e705c121SKalle Valo if (ret) 1605e705c121SKalle Valo return ret; 1606c8f54701SJohannes Berg 1607e705c121SKalle Valo /* flush its queues here since we are freeing mvm_sta */ 1608d49394a1SSara Sharon ret = iwl_mvm_flush_sta(mvm, mvm_sta, false, 0); 1609e705c121SKalle Valo if (ret) 1610e705c121SKalle Valo return ret; 1611d6d517b7SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1612d6d517b7SSara Sharon ret = iwl_mvm_wait_sta_queues_empty(mvm, mvm_sta); 1613d6d517b7SSara Sharon } else { 1614d6d517b7SSara Sharon u32 q_mask = mvm_sta->tfd_queue_msk; 1615d6d517b7SSara Sharon 1616a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 1617d6d517b7SSara Sharon q_mask); 1618d6d517b7SSara Sharon } 1619e705c121SKalle Valo if (ret) 1620e705c121SKalle Valo return ret; 1621c8f54701SJohannes Berg 1622e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, false); 1623e705c121SKalle Valo 162456214749SLiad Kaufman iwl_mvm_disable_sta_queues(mvm, vif, mvm_sta); 162556214749SLiad Kaufman 162656214749SLiad Kaufman /* If there is a TXQ still marked as reserved - free it */ 1627c8f54701SJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) { 1628a0315deaSLiad Kaufman u8 reserved_txq = mvm_sta->reserved_queue; 1629a0315deaSLiad Kaufman enum iwl_mvm_queue_status *status; 1630a0315deaSLiad Kaufman 1631a0315deaSLiad Kaufman /* 1632a0315deaSLiad Kaufman * If no traffic has gone through the reserved TXQ - it 1633a0315deaSLiad Kaufman * is still marked as IWL_MVM_QUEUE_RESERVED, and 1634a0315deaSLiad Kaufman * should be manually marked as free again 1635a0315deaSLiad Kaufman */ 1636a0315deaSLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 1637a0315deaSLiad Kaufman status = &mvm->queue_info[reserved_txq].status; 1638a0315deaSLiad Kaufman if (WARN((*status != IWL_MVM_QUEUE_RESERVED) && 1639a0315deaSLiad Kaufman (*status != IWL_MVM_QUEUE_FREE), 1640a0315deaSLiad Kaufman "sta_id %d reserved txq %d status %d", 164194c3e614SSara Sharon sta_id, reserved_txq, *status)) { 1642a0315deaSLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 1643a0315deaSLiad Kaufman return -EINVAL; 1644a0315deaSLiad Kaufman } 1645a0315deaSLiad Kaufman 1646a0315deaSLiad Kaufman *status = IWL_MVM_QUEUE_FREE; 1647a0315deaSLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 1648a0315deaSLiad Kaufman } 1649a0315deaSLiad Kaufman 1650e3118ad7SLiad Kaufman if (vif->type == NL80211_IFTYPE_STATION && 165194c3e614SSara Sharon mvmvif->ap_sta_id == sta_id) { 1652e3118ad7SLiad Kaufman /* if associated - we can't remove the AP STA now */ 1653e705c121SKalle Valo if (vif->bss_conf.assoc) 1654e705c121SKalle Valo return ret; 1655e705c121SKalle Valo 1656e705c121SKalle Valo /* unassoc - go ahead - remove the AP STA now */ 16570ae98812SSara Sharon mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1658e705c121SKalle Valo 1659e705c121SKalle Valo /* clear d0i3_ap_sta_id if no longer relevant */ 166094c3e614SSara Sharon if (mvm->d0i3_ap_sta_id == sta_id) 16610ae98812SSara Sharon mvm->d0i3_ap_sta_id = IWL_MVM_INVALID_STA; 1662e705c121SKalle Valo } 1663e705c121SKalle Valo 1664e705c121SKalle Valo /* 1665e705c121SKalle Valo * This shouldn't happen - the TDLS channel switch should be canceled 1666e705c121SKalle Valo * before the STA is removed. 1667e705c121SKalle Valo */ 166894c3e614SSara Sharon if (WARN_ON_ONCE(mvm->tdls_cs.peer.sta_id == sta_id)) { 16690ae98812SSara Sharon mvm->tdls_cs.peer.sta_id = IWL_MVM_INVALID_STA; 1670e705c121SKalle Valo cancel_delayed_work(&mvm->tdls_cs.dwork); 1671e705c121SKalle Valo } 1672e705c121SKalle Valo 1673e705c121SKalle Valo /* 1674e705c121SKalle Valo * Make sure that the tx response code sees the station as -EBUSY and 1675e705c121SKalle Valo * calls the drain worker. 1676e705c121SKalle Valo */ 1677e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 1678e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 1679e705c121SKalle Valo 1680e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvm_sta->sta_id); 1681e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[mvm_sta->sta_id], NULL); 1682e705c121SKalle Valo 1683e705c121SKalle Valo return ret; 1684e705c121SKalle Valo } 1685e705c121SKalle Valo 1686e705c121SKalle Valo int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm, 1687e705c121SKalle Valo struct ieee80211_vif *vif, 1688e705c121SKalle Valo u8 sta_id) 1689e705c121SKalle Valo { 1690e705c121SKalle Valo int ret = iwl_mvm_rm_sta_common(mvm, sta_id); 1691e705c121SKalle Valo 1692e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1693e705c121SKalle Valo 1694e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], NULL); 1695e705c121SKalle Valo return ret; 1696e705c121SKalle Valo } 1697e705c121SKalle Valo 16980e39eb03SChaya Rachel Ivgi int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, 1699e705c121SKalle Valo struct iwl_mvm_int_sta *sta, 1700ced19f26SSara Sharon u32 qmask, enum nl80211_iftype iftype, 1701ced19f26SSara Sharon enum iwl_sta_type type) 1702e705c121SKalle Valo { 1703df65c8d1SAvraham Stern if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1704df65c8d1SAvraham Stern sta->sta_id == IWL_MVM_INVALID_STA) { 1705e705c121SKalle Valo sta->sta_id = iwl_mvm_find_free_sta_id(mvm, iftype); 17060ae98812SSara Sharon if (WARN_ON_ONCE(sta->sta_id == IWL_MVM_INVALID_STA)) 1707e705c121SKalle Valo return -ENOSPC; 1708e705c121SKalle Valo } 1709e705c121SKalle Valo 1710e705c121SKalle Valo sta->tfd_queue_msk = qmask; 1711ced19f26SSara Sharon sta->type = type; 1712e705c121SKalle Valo 1713e705c121SKalle Valo /* put a non-NULL value so iterating over the stations won't stop */ 1714e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta->sta_id], ERR_PTR(-EINVAL)); 1715e705c121SKalle Valo return 0; 1716e705c121SKalle Valo } 1717e705c121SKalle Valo 171826d6c16bSSara Sharon void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta) 1719e705c121SKalle Valo { 1720e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta->sta_id], NULL); 1721e705c121SKalle Valo memset(sta, 0, sizeof(struct iwl_mvm_int_sta)); 17220ae98812SSara Sharon sta->sta_id = IWL_MVM_INVALID_STA; 1723e705c121SKalle Valo } 1724e705c121SKalle Valo 1725b13f43a4SEmmanuel Grumbach static void iwl_mvm_enable_aux_snif_queue(struct iwl_mvm *mvm, u16 *queue, 1726b13f43a4SEmmanuel Grumbach u8 sta_id, u8 fifo) 1727e705c121SKalle Valo { 1728e705c121SKalle Valo unsigned int wdg_timeout = iwlmvm_mod_params.tfd_q_hang_detect ? 1729e705c121SKalle Valo mvm->cfg->base_params->wd_timeout : 1730e705c121SKalle Valo IWL_WATCHDOG_DISABLED; 1731e705c121SKalle Valo 1732310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1733b13f43a4SEmmanuel Grumbach int tvqm_queue = 1734b13f43a4SEmmanuel Grumbach iwl_mvm_tvqm_enable_txq(mvm, *queue, sta_id, 1735310181ecSSara Sharon IWL_MAX_TID_COUNT, 1736310181ecSSara Sharon wdg_timeout); 1737b13f43a4SEmmanuel Grumbach *queue = tvqm_queue; 1738c8f54701SJohannes Berg } else { 173928d0793eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 1740b13f43a4SEmmanuel Grumbach .fifo = fifo, 1741b13f43a4SEmmanuel Grumbach .sta_id = sta_id, 174228d0793eSLiad Kaufman .tid = IWL_MAX_TID_COUNT, 174328d0793eSLiad Kaufman .aggregate = false, 174428d0793eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 174528d0793eSLiad Kaufman }; 174628d0793eSLiad Kaufman 1747b13f43a4SEmmanuel Grumbach iwl_mvm_enable_txq(mvm, *queue, *queue, 0, &cfg, wdg_timeout); 174828d0793eSLiad Kaufman } 1749c5a719eeSSara Sharon } 1750c5a719eeSSara Sharon 1751c5a719eeSSara Sharon int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm) 1752c5a719eeSSara Sharon { 1753c5a719eeSSara Sharon int ret; 1754c5a719eeSSara Sharon 1755c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 1756c5a719eeSSara Sharon 1757c5a719eeSSara Sharon /* Allocate aux station and assign to it the aux queue */ 1758c5a719eeSSara Sharon ret = iwl_mvm_allocate_int_sta(mvm, &mvm->aux_sta, BIT(mvm->aux_queue), 1759ced19f26SSara Sharon NL80211_IFTYPE_UNSPECIFIED, 1760ced19f26SSara Sharon IWL_STA_AUX_ACTIVITY); 1761c5a719eeSSara Sharon if (ret) 1762c5a719eeSSara Sharon return ret; 1763c5a719eeSSara Sharon 1764c5a719eeSSara Sharon /* Map Aux queue to fifo - needs to happen before adding Aux station */ 1765c5a719eeSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) 1766b13f43a4SEmmanuel Grumbach iwl_mvm_enable_aux_snif_queue(mvm, &mvm->aux_queue, 1767b13f43a4SEmmanuel Grumbach mvm->aux_sta.sta_id, 1768b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_MCAST); 176928d0793eSLiad Kaufman 1770e705c121SKalle Valo ret = iwl_mvm_add_int_sta_common(mvm, &mvm->aux_sta, NULL, 1771e705c121SKalle Valo MAC_INDEX_AUX, 0); 1772c5a719eeSSara Sharon if (ret) { 1773e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 1774e705c121SKalle Valo return ret; 1775e705c121SKalle Valo } 1776e705c121SKalle Valo 1777c5a719eeSSara Sharon /* 17782f7a3863SLuca Coelho * For 22000 firmware and on we cannot add queue to a station unknown 1779c5a719eeSSara Sharon * to firmware so enable queue here - after the station was added 1780c5a719eeSSara Sharon */ 1781c5a719eeSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 1782b13f43a4SEmmanuel Grumbach iwl_mvm_enable_aux_snif_queue(mvm, &mvm->aux_queue, 1783b13f43a4SEmmanuel Grumbach mvm->aux_sta.sta_id, 1784b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_MCAST); 1785c5a719eeSSara Sharon 1786c5a719eeSSara Sharon return 0; 1787c5a719eeSSara Sharon } 1788c5a719eeSSara Sharon 17890e39eb03SChaya Rachel Ivgi int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 17900e39eb03SChaya Rachel Ivgi { 17910e39eb03SChaya Rachel Ivgi struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1792b13f43a4SEmmanuel Grumbach int ret; 17930e39eb03SChaya Rachel Ivgi 17940e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 1795b13f43a4SEmmanuel Grumbach 1796b13f43a4SEmmanuel Grumbach /* Map snif queue to fifo - must happen before adding snif station */ 1797b13f43a4SEmmanuel Grumbach if (!iwl_mvm_has_new_tx_api(mvm)) 1798b13f43a4SEmmanuel Grumbach iwl_mvm_enable_aux_snif_queue(mvm, &mvm->snif_queue, 1799b13f43a4SEmmanuel Grumbach mvm->snif_sta.sta_id, 1800b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_BE); 1801b13f43a4SEmmanuel Grumbach 1802b13f43a4SEmmanuel Grumbach ret = iwl_mvm_add_int_sta_common(mvm, &mvm->snif_sta, vif->addr, 18030e39eb03SChaya Rachel Ivgi mvmvif->id, 0); 1804b13f43a4SEmmanuel Grumbach if (ret) 1805b13f43a4SEmmanuel Grumbach return ret; 1806b13f43a4SEmmanuel Grumbach 1807b13f43a4SEmmanuel Grumbach /* 1808b13f43a4SEmmanuel Grumbach * For 22000 firmware and on we cannot add queue to a station unknown 1809b13f43a4SEmmanuel Grumbach * to firmware so enable queue here - after the station was added 1810b13f43a4SEmmanuel Grumbach */ 1811b13f43a4SEmmanuel Grumbach if (iwl_mvm_has_new_tx_api(mvm)) 1812b13f43a4SEmmanuel Grumbach iwl_mvm_enable_aux_snif_queue(mvm, &mvm->snif_queue, 1813b13f43a4SEmmanuel Grumbach mvm->snif_sta.sta_id, 1814b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_BE); 1815b13f43a4SEmmanuel Grumbach 1816b13f43a4SEmmanuel Grumbach return 0; 18170e39eb03SChaya Rachel Ivgi } 18180e39eb03SChaya Rachel Ivgi 18190e39eb03SChaya Rachel Ivgi int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 18200e39eb03SChaya Rachel Ivgi { 18210e39eb03SChaya Rachel Ivgi int ret; 18220e39eb03SChaya Rachel Ivgi 18230e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 18240e39eb03SChaya Rachel Ivgi 1825b13f43a4SEmmanuel Grumbach iwl_mvm_disable_txq(mvm, mvm->snif_queue, mvm->snif_queue, 1826b13f43a4SEmmanuel Grumbach IWL_MAX_TID_COUNT, 0); 18270e39eb03SChaya Rachel Ivgi ret = iwl_mvm_rm_sta_common(mvm, mvm->snif_sta.sta_id); 18280e39eb03SChaya Rachel Ivgi if (ret) 18290e39eb03SChaya Rachel Ivgi IWL_WARN(mvm, "Failed sending remove station\n"); 18300e39eb03SChaya Rachel Ivgi 18310e39eb03SChaya Rachel Ivgi return ret; 18320e39eb03SChaya Rachel Ivgi } 18330e39eb03SChaya Rachel Ivgi 18340e39eb03SChaya Rachel Ivgi void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm) 18350e39eb03SChaya Rachel Ivgi { 18360e39eb03SChaya Rachel Ivgi iwl_mvm_dealloc_int_sta(mvm, &mvm->snif_sta); 18370e39eb03SChaya Rachel Ivgi } 18380e39eb03SChaya Rachel Ivgi 1839e705c121SKalle Valo void iwl_mvm_del_aux_sta(struct iwl_mvm *mvm) 1840e705c121SKalle Valo { 1841e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1842e705c121SKalle Valo 1843e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 1844e705c121SKalle Valo } 1845e705c121SKalle Valo 1846e705c121SKalle Valo /* 1847e705c121SKalle Valo * Send the add station command for the vif's broadcast station. 1848e705c121SKalle Valo * Assumes that the station was already allocated. 1849e705c121SKalle Valo * 1850e705c121SKalle Valo * @mvm: the mvm component 1851e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 1852e705c121SKalle Valo * @bsta: the broadcast station to add. 1853e705c121SKalle Valo */ 1854e705c121SKalle Valo int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1855e705c121SKalle Valo { 1856e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1857e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 1858e705c121SKalle Valo static const u8 _baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; 1859e705c121SKalle Valo const u8 *baddr = _baddr; 18607daa7624SJohannes Berg int queue; 1861df88c08dSLiad Kaufman int ret; 1862c5a719eeSSara Sharon unsigned int wdg_timeout = 1863c5a719eeSSara Sharon iwl_mvm_get_wd_timeout(mvm, vif, false, false); 1864de24f638SLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 1865de24f638SLiad Kaufman .fifo = IWL_MVM_TX_FIFO_VO, 1866de24f638SLiad Kaufman .sta_id = mvmvif->bcast_sta.sta_id, 1867de24f638SLiad Kaufman .tid = IWL_MAX_TID_COUNT, 1868de24f638SLiad Kaufman .aggregate = false, 1869de24f638SLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 1870de24f638SLiad Kaufman }; 1871de24f638SLiad Kaufman 1872c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 1873c5a719eeSSara Sharon 1874c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 18754d339989SLiad Kaufman if (vif->type == NL80211_IFTYPE_AP || 18764d339989SLiad Kaufman vif->type == NL80211_IFTYPE_ADHOC) 187749f71713SSara Sharon queue = mvm->probe_queue; 1878df88c08dSLiad Kaufman else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 187949f71713SSara Sharon queue = mvm->p2p_dev_queue; 1880df88c08dSLiad Kaufman else if (WARN(1, "Missing required TXQ for adding bcast STA\n")) 1881de24f638SLiad Kaufman return -EINVAL; 1882de24f638SLiad Kaufman 1883df88c08dSLiad Kaufman bsta->tfd_queue_msk |= BIT(queue); 1884c5a719eeSSara Sharon 1885c5a719eeSSara Sharon iwl_mvm_enable_txq(mvm, queue, vif->hw_queue[0], 0, 1886c5a719eeSSara Sharon &cfg, wdg_timeout); 1887de24f638SLiad Kaufman } 1888de24f638SLiad Kaufman 1889e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_ADHOC) 1890e705c121SKalle Valo baddr = vif->bss_conf.bssid; 1891e705c121SKalle Valo 18920ae98812SSara Sharon if (WARN_ON_ONCE(bsta->sta_id == IWL_MVM_INVALID_STA)) 1893e705c121SKalle Valo return -ENOSPC; 1894e705c121SKalle Valo 1895df88c08dSLiad Kaufman ret = iwl_mvm_add_int_sta_common(mvm, bsta, baddr, 1896e705c121SKalle Valo mvmvif->id, mvmvif->color); 1897df88c08dSLiad Kaufman if (ret) 1898df88c08dSLiad Kaufman return ret; 1899df88c08dSLiad Kaufman 1900df88c08dSLiad Kaufman /* 19012f7a3863SLuca Coelho * For 22000 firmware and on we cannot add queue to a station unknown 1902c5a719eeSSara Sharon * to firmware so enable queue here - after the station was added 1903df88c08dSLiad Kaufman */ 1904310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 19057daa7624SJohannes Berg queue = iwl_mvm_tvqm_enable_txq(mvm, vif->hw_queue[0], 1906310181ecSSara Sharon bsta->sta_id, 1907310181ecSSara Sharon IWL_MAX_TID_COUNT, 1908c5a719eeSSara Sharon wdg_timeout); 19097daa7624SJohannes Berg 19107b758a11SLuca Coelho if (vif->type == NL80211_IFTYPE_AP || 19117b758a11SLuca Coelho vif->type == NL80211_IFTYPE_ADHOC) 1912310181ecSSara Sharon mvm->probe_queue = queue; 1913310181ecSSara Sharon else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1914310181ecSSara Sharon mvm->p2p_dev_queue = queue; 1915310181ecSSara Sharon } 1916df88c08dSLiad Kaufman 1917df88c08dSLiad Kaufman return 0; 1918df88c08dSLiad Kaufman } 1919df88c08dSLiad Kaufman 1920df88c08dSLiad Kaufman static void iwl_mvm_free_bcast_sta_queues(struct iwl_mvm *mvm, 1921df88c08dSLiad Kaufman struct ieee80211_vif *vif) 1922df88c08dSLiad Kaufman { 1923df88c08dSLiad Kaufman struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1924d167e81aSMordechai Goodstein int queue; 1925df88c08dSLiad Kaufman 1926df88c08dSLiad Kaufman lockdep_assert_held(&mvm->mutex); 1927df88c08dSLiad Kaufman 1928d49394a1SSara Sharon iwl_mvm_flush_sta(mvm, &mvmvif->bcast_sta, true, 0); 1929d49394a1SSara Sharon 1930d167e81aSMordechai Goodstein switch (vif->type) { 1931d167e81aSMordechai Goodstein case NL80211_IFTYPE_AP: 1932d167e81aSMordechai Goodstein case NL80211_IFTYPE_ADHOC: 1933d167e81aSMordechai Goodstein queue = mvm->probe_queue; 1934d167e81aSMordechai Goodstein break; 1935d167e81aSMordechai Goodstein case NL80211_IFTYPE_P2P_DEVICE: 1936d167e81aSMordechai Goodstein queue = mvm->p2p_dev_queue; 1937d167e81aSMordechai Goodstein break; 1938d167e81aSMordechai Goodstein default: 1939d167e81aSMordechai Goodstein WARN(1, "Can't free bcast queue on vif type %d\n", 1940d167e81aSMordechai Goodstein vif->type); 1941d167e81aSMordechai Goodstein return; 1942df88c08dSLiad Kaufman } 1943df88c08dSLiad Kaufman 1944d167e81aSMordechai Goodstein iwl_mvm_disable_txq(mvm, queue, vif->hw_queue[0], IWL_MAX_TID_COUNT, 0); 1945d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) 1946d167e81aSMordechai Goodstein return; 1947d167e81aSMordechai Goodstein 1948d167e81aSMordechai Goodstein WARN_ON(!(mvmvif->bcast_sta.tfd_queue_msk & BIT(queue))); 1949d167e81aSMordechai Goodstein mvmvif->bcast_sta.tfd_queue_msk &= ~BIT(queue); 1950e705c121SKalle Valo } 1951e705c121SKalle Valo 1952e705c121SKalle Valo /* Send the FW a request to remove the station from it's internal data 1953e705c121SKalle Valo * structures, but DO NOT remove the entry from the local data structures. */ 1954e705c121SKalle Valo int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1955e705c121SKalle Valo { 1956e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1957e705c121SKalle Valo int ret; 1958e705c121SKalle Valo 1959e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1960e705c121SKalle Valo 1961df88c08dSLiad Kaufman iwl_mvm_free_bcast_sta_queues(mvm, vif); 1962df88c08dSLiad Kaufman 1963e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvmvif->bcast_sta.sta_id); 1964e705c121SKalle Valo if (ret) 1965e705c121SKalle Valo IWL_WARN(mvm, "Failed sending remove station\n"); 1966e705c121SKalle Valo return ret; 1967e705c121SKalle Valo } 1968e705c121SKalle Valo 1969e705c121SKalle Valo int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1970e705c121SKalle Valo { 1971e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1972e705c121SKalle Valo 1973e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1974e705c121SKalle Valo 1975c8f54701SJohannes Berg return iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, 0, 1976ced19f26SSara Sharon ieee80211_vif_type_p2p(vif), 1977ced19f26SSara Sharon IWL_STA_GENERAL_PURPOSE); 1978e705c121SKalle Valo } 1979e705c121SKalle Valo 1980e705c121SKalle Valo /* Allocate a new station entry for the broadcast station to the given vif, 1981e705c121SKalle Valo * and send it to the FW. 1982e705c121SKalle Valo * Note that each P2P mac should have its own broadcast station. 1983e705c121SKalle Valo * 1984e705c121SKalle Valo * @mvm: the mvm component 1985e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 1986e705c121SKalle Valo * @bsta: the broadcast station to add. */ 1987d197358bSLuca Coelho int iwl_mvm_add_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1988e705c121SKalle Valo { 1989e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1990e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 1991e705c121SKalle Valo int ret; 1992e705c121SKalle Valo 1993e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1994e705c121SKalle Valo 1995e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1996e705c121SKalle Valo if (ret) 1997e705c121SKalle Valo return ret; 1998e705c121SKalle Valo 1999e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2000e705c121SKalle Valo 2001e705c121SKalle Valo if (ret) 2002e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, bsta); 2003e705c121SKalle Valo 2004e705c121SKalle Valo return ret; 2005e705c121SKalle Valo } 2006e705c121SKalle Valo 2007e705c121SKalle Valo void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2008e705c121SKalle Valo { 2009e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2010e705c121SKalle Valo 2011e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta); 2012e705c121SKalle Valo } 2013e705c121SKalle Valo 2014e705c121SKalle Valo /* 2015e705c121SKalle Valo * Send the FW a request to remove the station from it's internal data 2016e705c121SKalle Valo * structures, and in addition remove it from the local data structure. 2017e705c121SKalle Valo */ 2018d197358bSLuca Coelho int iwl_mvm_rm_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2019e705c121SKalle Valo { 2020e705c121SKalle Valo int ret; 2021e705c121SKalle Valo 2022e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2023e705c121SKalle Valo 2024e705c121SKalle Valo ret = iwl_mvm_send_rm_bcast_sta(mvm, vif); 2025e705c121SKalle Valo 2026e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif); 2027e705c121SKalle Valo 2028e705c121SKalle Valo return ret; 2029e705c121SKalle Valo } 2030e705c121SKalle Valo 203126d6c16bSSara Sharon /* 203226d6c16bSSara Sharon * Allocate a new station entry for the multicast station to the given vif, 203326d6c16bSSara Sharon * and send it to the FW. 203426d6c16bSSara Sharon * Note that each AP/GO mac should have its own multicast station. 203526d6c16bSSara Sharon * 203626d6c16bSSara Sharon * @mvm: the mvm component 203726d6c16bSSara Sharon * @vif: the interface to which the multicast station is added 203826d6c16bSSara Sharon */ 203926d6c16bSSara Sharon int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 204026d6c16bSSara Sharon { 204126d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 204226d6c16bSSara Sharon struct iwl_mvm_int_sta *msta = &mvmvif->mcast_sta; 204326d6c16bSSara Sharon static const u8 _maddr[] = {0x03, 0x00, 0x00, 0x00, 0x00, 0x00}; 204426d6c16bSSara Sharon const u8 *maddr = _maddr; 204526d6c16bSSara Sharon struct iwl_trans_txq_scd_cfg cfg = { 204626d6c16bSSara Sharon .fifo = IWL_MVM_TX_FIFO_MCAST, 204726d6c16bSSara Sharon .sta_id = msta->sta_id, 20486508de03SIlan Peer .tid = 0, 204926d6c16bSSara Sharon .aggregate = false, 205026d6c16bSSara Sharon .frame_limit = IWL_FRAME_LIMIT, 205126d6c16bSSara Sharon }; 205226d6c16bSSara Sharon unsigned int timeout = iwl_mvm_get_wd_timeout(mvm, vif, false, false); 205326d6c16bSSara Sharon int ret; 205426d6c16bSSara Sharon 205526d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 205626d6c16bSSara Sharon 2057ee48b722SLiad Kaufman if (WARN_ON(vif->type != NL80211_IFTYPE_AP && 2058ee48b722SLiad Kaufman vif->type != NL80211_IFTYPE_ADHOC)) 205926d6c16bSSara Sharon return -ENOTSUPP; 206026d6c16bSSara Sharon 2061ced19f26SSara Sharon /* 2062fc07bd8cSSara Sharon * In IBSS, ieee80211_check_queues() sets the cab_queue to be 2063fc07bd8cSSara Sharon * invalid, so make sure we use the queue we want. 2064fc07bd8cSSara Sharon * Note that this is done here as we want to avoid making DQA 2065fc07bd8cSSara Sharon * changes in mac80211 layer. 2066fc07bd8cSSara Sharon */ 2067fc07bd8cSSara Sharon if (vif->type == NL80211_IFTYPE_ADHOC) { 2068fc07bd8cSSara Sharon vif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE; 2069fc07bd8cSSara Sharon mvmvif->cab_queue = vif->cab_queue; 2070fc07bd8cSSara Sharon } 2071fc07bd8cSSara Sharon 2072fc07bd8cSSara Sharon /* 2073ced19f26SSara Sharon * While in previous FWs we had to exclude cab queue from TFD queue 2074ced19f26SSara Sharon * mask, now it is needed as any other queue. 2075ced19f26SSara Sharon */ 2076ced19f26SSara Sharon if (!iwl_mvm_has_new_tx_api(mvm) && 2077ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2078ced19f26SSara Sharon iwl_mvm_enable_txq(mvm, vif->cab_queue, vif->cab_queue, 0, 2079ced19f26SSara Sharon &cfg, timeout); 2080ced19f26SSara Sharon msta->tfd_queue_msk |= BIT(vif->cab_queue); 2081ced19f26SSara Sharon } 208226d6c16bSSara Sharon ret = iwl_mvm_add_int_sta_common(mvm, msta, maddr, 208326d6c16bSSara Sharon mvmvif->id, mvmvif->color); 208426d6c16bSSara Sharon if (ret) { 208526d6c16bSSara Sharon iwl_mvm_dealloc_int_sta(mvm, msta); 208626d6c16bSSara Sharon return ret; 208726d6c16bSSara Sharon } 208826d6c16bSSara Sharon 208926d6c16bSSara Sharon /* 209026d6c16bSSara Sharon * Enable cab queue after the ADD_STA command is sent. 20912f7a3863SLuca Coelho * This is needed for 22000 firmware which won't accept SCD_QUEUE_CFG 2092ced19f26SSara Sharon * command with unknown station id, and for FW that doesn't support 2093ced19f26SSara Sharon * station API since the cab queue is not included in the 2094ced19f26SSara Sharon * tfd_queue_mask. 209526d6c16bSSara Sharon */ 2096310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 2097310181ecSSara Sharon int queue = iwl_mvm_tvqm_enable_txq(mvm, vif->cab_queue, 2098310181ecSSara Sharon msta->sta_id, 20996508de03SIlan Peer 0, 210026d6c16bSSara Sharon timeout); 2101e2af3fabSSara Sharon mvmvif->cab_queue = queue; 2102ced19f26SSara Sharon } else if (!fw_has_api(&mvm->fw->ucode_capa, 2103fc07bd8cSSara Sharon IWL_UCODE_TLV_API_STA_TYPE)) 2104310181ecSSara Sharon iwl_mvm_enable_txq(mvm, vif->cab_queue, vif->cab_queue, 0, 2105310181ecSSara Sharon &cfg, timeout); 210626d6c16bSSara Sharon 2107337bfc98SAvraham Stern if (mvmvif->ap_wep_key) { 2108337bfc98SAvraham Stern u8 key_offset = iwl_mvm_set_fw_key_idx(mvm); 2109337bfc98SAvraham Stern 2110337bfc98SAvraham Stern if (key_offset == STA_KEY_IDX_INVALID) 2111337bfc98SAvraham Stern return -ENOSPC; 2112337bfc98SAvraham Stern 2113337bfc98SAvraham Stern ret = iwl_mvm_send_sta_key(mvm, mvmvif->mcast_sta.sta_id, 2114337bfc98SAvraham Stern mvmvif->ap_wep_key, 1, 0, NULL, 0, 2115337bfc98SAvraham Stern key_offset, 0); 2116337bfc98SAvraham Stern if (ret) 2117337bfc98SAvraham Stern return ret; 2118337bfc98SAvraham Stern } 2119337bfc98SAvraham Stern 212026d6c16bSSara Sharon return 0; 212126d6c16bSSara Sharon } 212226d6c16bSSara Sharon 212326d6c16bSSara Sharon /* 212426d6c16bSSara Sharon * Send the FW a request to remove the station from it's internal data 212526d6c16bSSara Sharon * structures, and in addition remove it from the local data structure. 212626d6c16bSSara Sharon */ 212726d6c16bSSara Sharon int iwl_mvm_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 212826d6c16bSSara Sharon { 212926d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 213026d6c16bSSara Sharon int ret; 213126d6c16bSSara Sharon 213226d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 213326d6c16bSSara Sharon 2134d49394a1SSara Sharon iwl_mvm_flush_sta(mvm, &mvmvif->mcast_sta, true, 0); 2135d49394a1SSara Sharon 2136e2af3fabSSara Sharon iwl_mvm_disable_txq(mvm, mvmvif->cab_queue, vif->cab_queue, 21376508de03SIlan Peer 0, 0); 213826d6c16bSSara Sharon 213926d6c16bSSara Sharon ret = iwl_mvm_rm_sta_common(mvm, mvmvif->mcast_sta.sta_id); 214026d6c16bSSara Sharon if (ret) 214126d6c16bSSara Sharon IWL_WARN(mvm, "Failed sending remove station\n"); 214226d6c16bSSara Sharon 214326d6c16bSSara Sharon return ret; 214426d6c16bSSara Sharon } 214526d6c16bSSara Sharon 2146e705c121SKalle Valo #define IWL_MAX_RX_BA_SESSIONS 16 2147e705c121SKalle Valo 2148b915c101SSara Sharon static void iwl_mvm_sync_rxq_del_ba(struct iwl_mvm *mvm, u8 baid) 214910b2b201SSara Sharon { 2150b915c101SSara Sharon struct iwl_mvm_delba_notif notif = { 2151b915c101SSara Sharon .metadata.type = IWL_MVM_RXQ_NOTIF_DEL_BA, 2152b915c101SSara Sharon .metadata.sync = 1, 2153b915c101SSara Sharon .delba.baid = baid, 2154b915c101SSara Sharon }; 2155b915c101SSara Sharon iwl_mvm_sync_rx_queues_internal(mvm, (void *)¬if, sizeof(notif)); 215610b2b201SSara Sharon }; 215710b2b201SSara Sharon 2158b915c101SSara Sharon static void iwl_mvm_free_reorder(struct iwl_mvm *mvm, 2159b915c101SSara Sharon struct iwl_mvm_baid_data *data) 2160b915c101SSara Sharon { 2161b915c101SSara Sharon int i; 2162b915c101SSara Sharon 2163b915c101SSara Sharon iwl_mvm_sync_rxq_del_ba(mvm, data->baid); 2164b915c101SSara Sharon 2165b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2166b915c101SSara Sharon int j; 2167b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2168b915c101SSara Sharon &data->reorder_buf[i]; 2169dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2170dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2171b915c101SSara Sharon 21720690405fSSara Sharon spin_lock_bh(&reorder_buf->lock); 21730690405fSSara Sharon if (likely(!reorder_buf->num_stored)) { 21740690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 2175b915c101SSara Sharon continue; 21760690405fSSara Sharon } 2177b915c101SSara Sharon 2178b915c101SSara Sharon /* 2179b915c101SSara Sharon * This shouldn't happen in regular DELBA since the internal 2180b915c101SSara Sharon * delBA notification should trigger a release of all frames in 2181b915c101SSara Sharon * the reorder buffer. 2182b915c101SSara Sharon */ 2183b915c101SSara Sharon WARN_ON(1); 2184b915c101SSara Sharon 2185b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2186dfdddd92SJohannes Berg __skb_queue_purge(&entries[j].e.frames); 21870690405fSSara Sharon /* 21880690405fSSara Sharon * Prevent timer re-arm. This prevents a very far fetched case 21890690405fSSara Sharon * where we timed out on the notification. There may be prior 21900690405fSSara Sharon * RX frames pending in the RX queue before the notification 21910690405fSSara Sharon * that might get processed between now and the actual deletion 21920690405fSSara Sharon * and we would re-arm the timer although we are deleting the 21930690405fSSara Sharon * reorder buffer. 21940690405fSSara Sharon */ 21950690405fSSara Sharon reorder_buf->removed = true; 21960690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 21970690405fSSara Sharon del_timer_sync(&reorder_buf->reorder_timer); 2198b915c101SSara Sharon } 2199b915c101SSara Sharon } 2200b915c101SSara Sharon 2201b915c101SSara Sharon static void iwl_mvm_init_reorder_buffer(struct iwl_mvm *mvm, 2202b915c101SSara Sharon struct iwl_mvm_baid_data *data, 2203514c3069SLuca Coelho u16 ssn, u16 buf_size) 2204b915c101SSara Sharon { 2205b915c101SSara Sharon int i; 2206b915c101SSara Sharon 2207b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2208b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2209b915c101SSara Sharon &data->reorder_buf[i]; 2210dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2211dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2212b915c101SSara Sharon int j; 2213b915c101SSara Sharon 2214b915c101SSara Sharon reorder_buf->num_stored = 0; 2215b915c101SSara Sharon reorder_buf->head_sn = ssn; 2216b915c101SSara Sharon reorder_buf->buf_size = buf_size; 22170690405fSSara Sharon /* rx reorder timer */ 22188cef5344SKees Cook timer_setup(&reorder_buf->reorder_timer, 22198cef5344SKees Cook iwl_mvm_reorder_timer_expired, 0); 22200690405fSSara Sharon spin_lock_init(&reorder_buf->lock); 22210690405fSSara Sharon reorder_buf->mvm = mvm; 2222b915c101SSara Sharon reorder_buf->queue = i; 22235d43eab6SSara Sharon reorder_buf->valid = false; 2224b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2225dfdddd92SJohannes Berg __skb_queue_head_init(&entries[j].e.frames); 2226b915c101SSara Sharon } 222710b2b201SSara Sharon } 222810b2b201SSara Sharon 2229e705c121SKalle Valo int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2230514c3069SLuca Coelho int tid, u16 ssn, bool start, u16 buf_size, u16 timeout) 2231e705c121SKalle Valo { 2232e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2233e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 223410b2b201SSara Sharon struct iwl_mvm_baid_data *baid_data = NULL; 2235e705c121SKalle Valo int ret; 2236e705c121SKalle Valo u32 status; 2237e705c121SKalle Valo 2238e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2239e705c121SKalle Valo 2240e705c121SKalle Valo if (start && mvm->rx_ba_sessions >= IWL_MAX_RX_BA_SESSIONS) { 2241e705c121SKalle Valo IWL_WARN(mvm, "Not enough RX BA SESSIONS\n"); 2242e705c121SKalle Valo return -ENOSPC; 2243e705c121SKalle Valo } 2244e705c121SKalle Valo 224510b2b201SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && start) { 2246dfdddd92SJohannes Berg u16 reorder_buf_size = buf_size * sizeof(baid_data->entries[0]); 2247dfdddd92SJohannes Berg 2248dfdddd92SJohannes Berg /* sparse doesn't like the __align() so don't check */ 2249dfdddd92SJohannes Berg #ifndef __CHECKER__ 2250dfdddd92SJohannes Berg /* 2251dfdddd92SJohannes Berg * The division below will be OK if either the cache line size 2252dfdddd92SJohannes Berg * can be divided by the entry size (ALIGN will round up) or if 2253dfdddd92SJohannes Berg * if the entry size can be divided by the cache line size, in 2254dfdddd92SJohannes Berg * which case the ALIGN() will do nothing. 2255dfdddd92SJohannes Berg */ 2256dfdddd92SJohannes Berg BUILD_BUG_ON(SMP_CACHE_BYTES % sizeof(baid_data->entries[0]) && 2257dfdddd92SJohannes Berg sizeof(baid_data->entries[0]) % SMP_CACHE_BYTES); 2258dfdddd92SJohannes Berg #endif 2259dfdddd92SJohannes Berg 2260dfdddd92SJohannes Berg /* 2261dfdddd92SJohannes Berg * Upward align the reorder buffer size to fill an entire cache 2262dfdddd92SJohannes Berg * line for each queue, to avoid sharing cache lines between 2263dfdddd92SJohannes Berg * different queues. 2264dfdddd92SJohannes Berg */ 2265dfdddd92SJohannes Berg reorder_buf_size = ALIGN(reorder_buf_size, SMP_CACHE_BYTES); 2266dfdddd92SJohannes Berg 226710b2b201SSara Sharon /* 226810b2b201SSara Sharon * Allocate here so if allocation fails we can bail out early 226910b2b201SSara Sharon * before starting the BA session in the firmware 227010b2b201SSara Sharon */ 2271b915c101SSara Sharon baid_data = kzalloc(sizeof(*baid_data) + 2272b915c101SSara Sharon mvm->trans->num_rx_queues * 2273dfdddd92SJohannes Berg reorder_buf_size, 2274b915c101SSara Sharon GFP_KERNEL); 227510b2b201SSara Sharon if (!baid_data) 227610b2b201SSara Sharon return -ENOMEM; 2277dfdddd92SJohannes Berg 2278dfdddd92SJohannes Berg /* 2279dfdddd92SJohannes Berg * This division is why we need the above BUILD_BUG_ON(), 2280dfdddd92SJohannes Berg * if that doesn't hold then this will not be right. 2281dfdddd92SJohannes Berg */ 2282dfdddd92SJohannes Berg baid_data->entries_per_queue = 2283dfdddd92SJohannes Berg reorder_buf_size / sizeof(baid_data->entries[0]); 228410b2b201SSara Sharon } 228510b2b201SSara Sharon 2286e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 2287e705c121SKalle Valo cmd.sta_id = mvm_sta->sta_id; 2288e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 2289e705c121SKalle Valo if (start) { 2290e705c121SKalle Valo cmd.add_immediate_ba_tid = (u8) tid; 2291e705c121SKalle Valo cmd.add_immediate_ba_ssn = cpu_to_le16(ssn); 2292514c3069SLuca Coelho cmd.rx_ba_window = cpu_to_le16(buf_size); 2293e705c121SKalle Valo } else { 2294e705c121SKalle Valo cmd.remove_immediate_ba_tid = (u8) tid; 2295e705c121SKalle Valo } 2296e705c121SKalle Valo cmd.modify_mask = start ? STA_MODIFY_ADD_BA_TID : 2297e705c121SKalle Valo STA_MODIFY_REMOVE_BA_TID; 2298e705c121SKalle Valo 2299e705c121SKalle Valo status = ADD_STA_SUCCESS; 2300854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 2301854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 2302e705c121SKalle Valo &cmd, &status); 2303e705c121SKalle Valo if (ret) 230410b2b201SSara Sharon goto out_free; 2305e705c121SKalle Valo 2306837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 2307e705c121SKalle Valo case ADD_STA_SUCCESS: 230835263a03SSara Sharon IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n", 2309e705c121SKalle Valo start ? "start" : "stopp"); 2310e705c121SKalle Valo break; 2311e705c121SKalle Valo case ADD_STA_IMMEDIATE_BA_FAILURE: 2312e705c121SKalle Valo IWL_WARN(mvm, "RX BA Session refused by fw\n"); 2313e705c121SKalle Valo ret = -ENOSPC; 2314e705c121SKalle Valo break; 2315e705c121SKalle Valo default: 2316e705c121SKalle Valo ret = -EIO; 2317e705c121SKalle Valo IWL_ERR(mvm, "RX BA Session failed %sing, status 0x%x\n", 2318e705c121SKalle Valo start ? "start" : "stopp", status); 2319e705c121SKalle Valo break; 2320e705c121SKalle Valo } 2321e705c121SKalle Valo 232210b2b201SSara Sharon if (ret) 232310b2b201SSara Sharon goto out_free; 232410b2b201SSara Sharon 232510b2b201SSara Sharon if (start) { 232610b2b201SSara Sharon u8 baid; 232710b2b201SSara Sharon 2328e705c121SKalle Valo mvm->rx_ba_sessions++; 232910b2b201SSara Sharon 233010b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 233110b2b201SSara Sharon return 0; 233210b2b201SSara Sharon 233310b2b201SSara Sharon if (WARN_ON(!(status & IWL_ADD_STA_BAID_VALID_MASK))) { 233410b2b201SSara Sharon ret = -EINVAL; 233510b2b201SSara Sharon goto out_free; 233610b2b201SSara Sharon } 233710b2b201SSara Sharon baid = (u8)((status & IWL_ADD_STA_BAID_MASK) >> 233810b2b201SSara Sharon IWL_ADD_STA_BAID_SHIFT); 233910b2b201SSara Sharon baid_data->baid = baid; 234010b2b201SSara Sharon baid_data->timeout = timeout; 234110b2b201SSara Sharon baid_data->last_rx = jiffies; 23428cef5344SKees Cook baid_data->rcu_ptr = &mvm->baid_map[baid]; 23438cef5344SKees Cook timer_setup(&baid_data->session_timer, 23448cef5344SKees Cook iwl_mvm_rx_agg_session_expired, 0); 234510b2b201SSara Sharon baid_data->mvm = mvm; 234610b2b201SSara Sharon baid_data->tid = tid; 234710b2b201SSara Sharon baid_data->sta_id = mvm_sta->sta_id; 234810b2b201SSara Sharon 234910b2b201SSara Sharon mvm_sta->tid_to_baid[tid] = baid; 235010b2b201SSara Sharon if (timeout) 235110b2b201SSara Sharon mod_timer(&baid_data->session_timer, 235210b2b201SSara Sharon TU_TO_EXP_TIME(timeout * 2)); 235310b2b201SSara Sharon 23543f1c4c58SSara Sharon iwl_mvm_init_reorder_buffer(mvm, baid_data, ssn, buf_size); 235510b2b201SSara Sharon /* 235610b2b201SSara Sharon * protect the BA data with RCU to cover a case where our 235710b2b201SSara Sharon * internal RX sync mechanism will timeout (not that it's 235810b2b201SSara Sharon * supposed to happen) and we will free the session data while 235910b2b201SSara Sharon * RX is being processed in parallel 236010b2b201SSara Sharon */ 236135263a03SSara Sharon IWL_DEBUG_HT(mvm, "Sta %d(%d) is assigned to BAID %d\n", 236235263a03SSara Sharon mvm_sta->sta_id, tid, baid); 236310b2b201SSara Sharon WARN_ON(rcu_access_pointer(mvm->baid_map[baid])); 236410b2b201SSara Sharon rcu_assign_pointer(mvm->baid_map[baid], baid_data); 236560dec523SSara Sharon } else { 236610b2b201SSara Sharon u8 baid = mvm_sta->tid_to_baid[tid]; 236710b2b201SSara Sharon 236860dec523SSara Sharon if (mvm->rx_ba_sessions > 0) 2369e705c121SKalle Valo /* check that restart flow didn't zero the counter */ 2370e705c121SKalle Valo mvm->rx_ba_sessions--; 237110b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 237210b2b201SSara Sharon return 0; 2373e705c121SKalle Valo 237410b2b201SSara Sharon if (WARN_ON(baid == IWL_RX_REORDER_DATA_INVALID_BAID)) 237510b2b201SSara Sharon return -EINVAL; 237610b2b201SSara Sharon 237710b2b201SSara Sharon baid_data = rcu_access_pointer(mvm->baid_map[baid]); 237810b2b201SSara Sharon if (WARN_ON(!baid_data)) 237910b2b201SSara Sharon return -EINVAL; 238010b2b201SSara Sharon 238110b2b201SSara Sharon /* synchronize all rx queues so we can safely delete */ 2382b915c101SSara Sharon iwl_mvm_free_reorder(mvm, baid_data); 238310b2b201SSara Sharon del_timer_sync(&baid_data->session_timer); 238410b2b201SSara Sharon RCU_INIT_POINTER(mvm->baid_map[baid], NULL); 238510b2b201SSara Sharon kfree_rcu(baid_data, rcu_head); 238635263a03SSara Sharon IWL_DEBUG_HT(mvm, "BAID %d is free\n", baid); 238710b2b201SSara Sharon } 238810b2b201SSara Sharon return 0; 238910b2b201SSara Sharon 239010b2b201SSara Sharon out_free: 239110b2b201SSara Sharon kfree(baid_data); 2392e705c121SKalle Valo return ret; 2393e705c121SKalle Valo } 2394e705c121SKalle Valo 23959794c64fSLiad Kaufman int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2396e705c121SKalle Valo int tid, u8 queue, bool start) 2397e705c121SKalle Valo { 2398e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2399e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 2400e705c121SKalle Valo int ret; 2401e705c121SKalle Valo u32 status; 2402e705c121SKalle Valo 2403e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2404e705c121SKalle Valo 2405e705c121SKalle Valo if (start) { 2406e705c121SKalle Valo mvm_sta->tfd_queue_msk |= BIT(queue); 2407e705c121SKalle Valo mvm_sta->tid_disable_agg &= ~BIT(tid); 2408e705c121SKalle Valo } else { 2409cf961e16SLiad Kaufman /* In DQA-mode the queue isn't removed on agg termination */ 2410e705c121SKalle Valo mvm_sta->tid_disable_agg |= BIT(tid); 2411e705c121SKalle Valo } 2412e705c121SKalle Valo 2413e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 2414e705c121SKalle Valo cmd.sta_id = mvm_sta->sta_id; 2415e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 2416bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) 2417bb49701bSSara Sharon cmd.modify_mask = STA_MODIFY_QUEUES; 2418bb49701bSSara Sharon cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 2419e705c121SKalle Valo cmd.tfd_queue_msk = cpu_to_le32(mvm_sta->tfd_queue_msk); 2420e705c121SKalle Valo cmd.tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg); 2421e705c121SKalle Valo 2422e705c121SKalle Valo status = ADD_STA_SUCCESS; 2423854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 2424854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 2425e705c121SKalle Valo &cmd, &status); 2426e705c121SKalle Valo if (ret) 2427e705c121SKalle Valo return ret; 2428e705c121SKalle Valo 2429837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 2430e705c121SKalle Valo case ADD_STA_SUCCESS: 2431e705c121SKalle Valo break; 2432e705c121SKalle Valo default: 2433e705c121SKalle Valo ret = -EIO; 2434e705c121SKalle Valo IWL_ERR(mvm, "TX BA Session failed %sing, status 0x%x\n", 2435e705c121SKalle Valo start ? "start" : "stopp", status); 2436e705c121SKalle Valo break; 2437e705c121SKalle Valo } 2438e705c121SKalle Valo 2439e705c121SKalle Valo return ret; 2440e705c121SKalle Valo } 2441e705c121SKalle Valo 2442e705c121SKalle Valo const u8 tid_to_mac80211_ac[] = { 2443e705c121SKalle Valo IEEE80211_AC_BE, 2444e705c121SKalle Valo IEEE80211_AC_BK, 2445e705c121SKalle Valo IEEE80211_AC_BK, 2446e705c121SKalle Valo IEEE80211_AC_BE, 2447e705c121SKalle Valo IEEE80211_AC_VI, 2448e705c121SKalle Valo IEEE80211_AC_VI, 2449e705c121SKalle Valo IEEE80211_AC_VO, 2450e705c121SKalle Valo IEEE80211_AC_VO, 24519794c64fSLiad Kaufman IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 2452e705c121SKalle Valo }; 2453e705c121SKalle Valo 2454e705c121SKalle Valo static const u8 tid_to_ucode_ac[] = { 2455e705c121SKalle Valo AC_BE, 2456e705c121SKalle Valo AC_BK, 2457e705c121SKalle Valo AC_BK, 2458e705c121SKalle Valo AC_BE, 2459e705c121SKalle Valo AC_VI, 2460e705c121SKalle Valo AC_VI, 2461e705c121SKalle Valo AC_VO, 2462e705c121SKalle Valo AC_VO, 2463e705c121SKalle Valo }; 2464e705c121SKalle Valo 2465e705c121SKalle Valo int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2466e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 *ssn) 2467e705c121SKalle Valo { 2468e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2469e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 2470dd32162dSLiad Kaufman u16 normalized_ssn; 2471e705c121SKalle Valo int txq_id; 2472e705c121SKalle Valo int ret; 2473e705c121SKalle Valo 2474e705c121SKalle Valo if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT)) 2475e705c121SKalle Valo return -EINVAL; 2476e705c121SKalle Valo 2477bd800e41SNaftali Goldstein if (mvmsta->tid_data[tid].state != IWL_AGG_QUEUED && 2478bd800e41SNaftali Goldstein mvmsta->tid_data[tid].state != IWL_AGG_OFF) { 2479bd800e41SNaftali Goldstein IWL_ERR(mvm, 2480bd800e41SNaftali Goldstein "Start AGG when state is not IWL_AGG_QUEUED or IWL_AGG_OFF %d!\n", 2481e705c121SKalle Valo mvmsta->tid_data[tid].state); 2482e705c121SKalle Valo return -ENXIO; 2483e705c121SKalle Valo } 2484e705c121SKalle Valo 2485e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2486e705c121SKalle Valo 2487bd8f3fc6SLiad Kaufman if (mvmsta->tid_data[tid].txq_id == IWL_MVM_INVALID_QUEUE && 2488bd8f3fc6SLiad Kaufman iwl_mvm_has_new_tx_api(mvm)) { 2489bd8f3fc6SLiad Kaufman u8 ac = tid_to_mac80211_ac[tid]; 2490bd8f3fc6SLiad Kaufman 2491bd8f3fc6SLiad Kaufman ret = iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 2492bd8f3fc6SLiad Kaufman if (ret) 2493bd8f3fc6SLiad Kaufman return ret; 2494bd8f3fc6SLiad Kaufman } 2495bd8f3fc6SLiad Kaufman 2496e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2497e705c121SKalle Valo 2498e705c121SKalle Valo /* possible race condition - we entered D0i3 while starting agg */ 2499e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) { 2500e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2501e705c121SKalle Valo IWL_ERR(mvm, "Entered D0i3 while starting Tx agg\n"); 2502e705c121SKalle Valo return -EIO; 2503e705c121SKalle Valo } 2504e705c121SKalle Valo 25059f9af3d7SLiad Kaufman spin_lock(&mvm->queue_info_lock); 2506e705c121SKalle Valo 2507cf961e16SLiad Kaufman /* 2508cf961e16SLiad Kaufman * Note the possible cases: 25094a6d2e52SAvraham Stern * 1. An enabled TXQ - TXQ needs to become agg'ed 25104a6d2e52SAvraham Stern * 2. The TXQ hasn't yet been enabled, so find a free one and mark 25114a6d2e52SAvraham Stern * it as reserved 2512cf961e16SLiad Kaufman */ 2513cf961e16SLiad Kaufman txq_id = mvmsta->tid_data[tid].txq_id; 251434e10860SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) { 25159794c64fSLiad Kaufman txq_id = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 2516c8f54701SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 2517c8f54701SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 2518e705c121SKalle Valo if (txq_id < 0) { 2519e705c121SKalle Valo ret = txq_id; 2520e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate agg queue\n"); 2521e705c121SKalle Valo goto release_locks; 2522e705c121SKalle Valo } 2523cf961e16SLiad Kaufman 2524cf961e16SLiad Kaufman /* TXQ hasn't yet been enabled, so mark it only as reserved */ 2525cf961e16SLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_RESERVED; 25264a6d2e52SAvraham Stern } else if (unlikely(mvm->queue_info[txq_id].status == 25274a6d2e52SAvraham Stern IWL_MVM_QUEUE_SHARED)) { 25284a6d2e52SAvraham Stern ret = -ENXIO; 25294a6d2e52SAvraham Stern IWL_DEBUG_TX_QUEUES(mvm, 25304a6d2e52SAvraham Stern "Can't start tid %d agg on shared queue!\n", 25314a6d2e52SAvraham Stern tid); 25324a6d2e52SAvraham Stern goto release_locks; 2533cf961e16SLiad Kaufman } 25349f9af3d7SLiad Kaufman 25359f9af3d7SLiad Kaufman spin_unlock(&mvm->queue_info_lock); 2536e705c121SKalle Valo 2537cf961e16SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 2538cf961e16SLiad Kaufman "AGG for tid %d will be on queue #%d\n", 2539cf961e16SLiad Kaufman tid, txq_id); 2540cf961e16SLiad Kaufman 2541e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 2542e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 2543e705c121SKalle Valo tid_data->txq_id = txq_id; 2544e705c121SKalle Valo *ssn = tid_data->ssn; 2545e705c121SKalle Valo 2546e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 2547e705c121SKalle Valo "Start AGG: sta %d tid %d queue %d - ssn = %d, next_recl = %d\n", 2548e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->ssn, 2549e705c121SKalle Valo tid_data->next_reclaimed); 2550e705c121SKalle Valo 2551dd32162dSLiad Kaufman /* 25522f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 2553dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 2554dd32162dSLiad Kaufman */ 2555dd32162dSLiad Kaufman normalized_ssn = tid_data->ssn; 2556dd32162dSLiad Kaufman if (mvm->trans->cfg->gen2) 2557dd32162dSLiad Kaufman normalized_ssn &= 0xff; 2558dd32162dSLiad Kaufman 2559dd32162dSLiad Kaufman if (normalized_ssn == tid_data->next_reclaimed) { 2560e705c121SKalle Valo tid_data->state = IWL_AGG_STARTING; 2561e705c121SKalle Valo ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); 2562e705c121SKalle Valo } else { 2563e705c121SKalle Valo tid_data->state = IWL_EMPTYING_HW_QUEUE_ADDBA; 2564e705c121SKalle Valo } 2565e705c121SKalle Valo 2566e705c121SKalle Valo ret = 0; 25679f9af3d7SLiad Kaufman goto out; 2568e705c121SKalle Valo 2569e705c121SKalle Valo release_locks: 25709f9af3d7SLiad Kaufman spin_unlock(&mvm->queue_info_lock); 25719f9af3d7SLiad Kaufman out: 2572e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2573e705c121SKalle Valo 2574e705c121SKalle Valo return ret; 2575e705c121SKalle Valo } 2576e705c121SKalle Valo 2577e705c121SKalle Valo int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2578514c3069SLuca Coelho struct ieee80211_sta *sta, u16 tid, u16 buf_size, 2579bb81bb68SEmmanuel Grumbach bool amsdu) 2580e705c121SKalle Valo { 2581e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2582e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2583e705c121SKalle Valo unsigned int wdg_timeout = 2584e705c121SKalle Valo iwl_mvm_get_wd_timeout(mvm, vif, sta->tdls, false); 2585eea76c36SEmmanuel Grumbach int queue, ret; 2586cf961e16SLiad Kaufman bool alloc_queue = true; 25879f9af3d7SLiad Kaufman enum iwl_mvm_queue_status queue_status; 2588e705c121SKalle Valo u16 ssn; 2589e705c121SKalle Valo 2590eea76c36SEmmanuel Grumbach struct iwl_trans_txq_scd_cfg cfg = { 2591eea76c36SEmmanuel Grumbach .sta_id = mvmsta->sta_id, 2592eea76c36SEmmanuel Grumbach .tid = tid, 2593eea76c36SEmmanuel Grumbach .frame_limit = buf_size, 2594eea76c36SEmmanuel Grumbach .aggregate = true, 2595eea76c36SEmmanuel Grumbach }; 2596eea76c36SEmmanuel Grumbach 2597ecaf71deSGregory Greenman /* 2598ecaf71deSGregory Greenman * When FW supports TLC_OFFLOAD, it also implements Tx aggregation 2599ecaf71deSGregory Greenman * manager, so this function should never be called in this case. 2600ecaf71deSGregory Greenman */ 26014243edb4SEmmanuel Grumbach if (WARN_ON_ONCE(iwl_mvm_has_tlc_offload(mvm))) 2602ecaf71deSGregory Greenman return -EINVAL; 2603ecaf71deSGregory Greenman 2604e705c121SKalle Valo BUILD_BUG_ON((sizeof(mvmsta->agg_tids) * BITS_PER_BYTE) 2605e705c121SKalle Valo != IWL_MAX_TID_COUNT); 2606e705c121SKalle Valo 2607e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2608e705c121SKalle Valo ssn = tid_data->ssn; 2609e705c121SKalle Valo queue = tid_data->txq_id; 2610e705c121SKalle Valo tid_data->state = IWL_AGG_ON; 2611e705c121SKalle Valo mvmsta->agg_tids |= BIT(tid); 2612e705c121SKalle Valo tid_data->ssn = 0xffff; 2613bb81bb68SEmmanuel Grumbach tid_data->amsdu_in_ampdu_allowed = amsdu; 2614e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2615e705c121SKalle Valo 261634e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 261734e10860SSara Sharon /* 26180ec9257bSSara Sharon * If there is no queue for this tid, iwl_mvm_sta_tx_agg_start() 26190ec9257bSSara Sharon * would have failed, so if we are here there is no need to 26200ec9257bSSara Sharon * allocate a queue. 26210ec9257bSSara Sharon * However, if aggregation size is different than the default 26220ec9257bSSara Sharon * size, the scheduler should be reconfigured. 26230ec9257bSSara Sharon * We cannot do this with the new TX API, so return unsupported 26240ec9257bSSara Sharon * for now, until it will be offloaded to firmware.. 26250ec9257bSSara Sharon * Note that if SCD default value changes - this condition 26260ec9257bSSara Sharon * should be updated as well. 262734e10860SSara Sharon */ 26280ec9257bSSara Sharon if (buf_size < IWL_FRAME_LIMIT) 262934e10860SSara Sharon return -ENOTSUPP; 263034e10860SSara Sharon 263134e10860SSara Sharon ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 263234e10860SSara Sharon if (ret) 263334e10860SSara Sharon return -EIO; 263434e10860SSara Sharon goto out; 263534e10860SSara Sharon } 263634e10860SSara Sharon 2637eea76c36SEmmanuel Grumbach cfg.fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 2638e705c121SKalle Valo 26399f9af3d7SLiad Kaufman spin_lock_bh(&mvm->queue_info_lock); 26409f9af3d7SLiad Kaufman queue_status = mvm->queue_info[queue].status; 26419f9af3d7SLiad Kaufman spin_unlock_bh(&mvm->queue_info_lock); 26429f9af3d7SLiad Kaufman 2643cf961e16SLiad Kaufman /* Maybe there is no need to even alloc a queue... */ 2644cf961e16SLiad Kaufman if (mvm->queue_info[queue].status == IWL_MVM_QUEUE_READY) 2645cf961e16SLiad Kaufman alloc_queue = false; 2646cf961e16SLiad Kaufman 2647cf961e16SLiad Kaufman /* 2648cf961e16SLiad Kaufman * Only reconfig the SCD for the queue if the window size has 2649cf961e16SLiad Kaufman * changed from current (become smaller) 2650cf961e16SLiad Kaufman */ 26510ec9257bSSara Sharon if (!alloc_queue && buf_size < IWL_FRAME_LIMIT) { 2652cf961e16SLiad Kaufman /* 2653cf961e16SLiad Kaufman * If reconfiguring an existing queue, it first must be 2654cf961e16SLiad Kaufman * drained 2655cf961e16SLiad Kaufman */ 2656a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 2657cf961e16SLiad Kaufman BIT(queue)); 2658cf961e16SLiad Kaufman if (ret) { 2659cf961e16SLiad Kaufman IWL_ERR(mvm, 2660cf961e16SLiad Kaufman "Error draining queue before reconfig\n"); 2661cf961e16SLiad Kaufman return ret; 2662cf961e16SLiad Kaufman } 2663cf961e16SLiad Kaufman 2664cf961e16SLiad Kaufman ret = iwl_mvm_reconfig_scd(mvm, queue, cfg.fifo, 2665cf961e16SLiad Kaufman mvmsta->sta_id, tid, 2666cf961e16SLiad Kaufman buf_size, ssn); 2667cf961e16SLiad Kaufman if (ret) { 2668cf961e16SLiad Kaufman IWL_ERR(mvm, 2669cf961e16SLiad Kaufman "Error reconfiguring TXQ #%d\n", queue); 2670cf961e16SLiad Kaufman return ret; 2671cf961e16SLiad Kaufman } 2672cf961e16SLiad Kaufman } 2673cf961e16SLiad Kaufman 2674cf961e16SLiad Kaufman if (alloc_queue) 2675cf961e16SLiad Kaufman iwl_mvm_enable_txq(mvm, queue, 2676cf961e16SLiad Kaufman vif->hw_queue[tid_to_mac80211_ac[tid]], ssn, 2677cf961e16SLiad Kaufman &cfg, wdg_timeout); 2678e705c121SKalle Valo 26799f9af3d7SLiad Kaufman /* Send ADD_STA command to enable aggs only if the queue isn't shared */ 26809f9af3d7SLiad Kaufman if (queue_status != IWL_MVM_QUEUE_SHARED) { 2681e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 2682e705c121SKalle Valo if (ret) 2683e705c121SKalle Valo return -EIO; 26849f9af3d7SLiad Kaufman } 2685e705c121SKalle Valo 2686e705c121SKalle Valo /* No need to mark as reserved */ 2687e705c121SKalle Valo spin_lock_bh(&mvm->queue_info_lock); 2688cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 2689e705c121SKalle Valo spin_unlock_bh(&mvm->queue_info_lock); 2690e705c121SKalle Valo 269134e10860SSara Sharon out: 2692e705c121SKalle Valo /* 2693e705c121SKalle Valo * Even though in theory the peer could have different 2694e705c121SKalle Valo * aggregation reorder buffer sizes for different sessions, 2695e705c121SKalle Valo * our ucode doesn't allow for that and has a global limit 2696e705c121SKalle Valo * for each station. Therefore, use the minimum of all the 2697e705c121SKalle Valo * aggregation sessions and our default value. 2698e705c121SKalle Valo */ 2699e705c121SKalle Valo mvmsta->max_agg_bufsize = 2700e705c121SKalle Valo min(mvmsta->max_agg_bufsize, buf_size); 2701ecaf71deSGregory Greenman mvmsta->lq_sta.rs_drv.lq.agg_frame_cnt_limit = mvmsta->max_agg_bufsize; 2702e705c121SKalle Valo 2703e705c121SKalle Valo IWL_DEBUG_HT(mvm, "Tx aggregation enabled on ra = %pM tid = %d\n", 2704e705c121SKalle Valo sta->addr, tid); 2705e705c121SKalle Valo 2706ecaf71deSGregory Greenman return iwl_mvm_send_lq_cmd(mvm, &mvmsta->lq_sta.rs_drv.lq, false); 2707e705c121SKalle Valo } 2708e705c121SKalle Valo 270934e10860SSara Sharon static void iwl_mvm_unreserve_agg_queue(struct iwl_mvm *mvm, 271034e10860SSara Sharon struct iwl_mvm_sta *mvmsta, 27114b387906SAvraham Stern struct iwl_mvm_tid_data *tid_data) 271234e10860SSara Sharon { 27134b387906SAvraham Stern u16 txq_id = tid_data->txq_id; 27144b387906SAvraham Stern 271534e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 271634e10860SSara Sharon return; 271734e10860SSara Sharon 271834e10860SSara Sharon spin_lock_bh(&mvm->queue_info_lock); 271934e10860SSara Sharon /* 272034e10860SSara Sharon * The TXQ is marked as reserved only if no traffic came through yet 272134e10860SSara Sharon * This means no traffic has been sent on this TID (agg'd or not), so 272234e10860SSara Sharon * we no longer have use for the queue. Since it hasn't even been 272334e10860SSara Sharon * allocated through iwl_mvm_enable_txq, so we can just mark it back as 272434e10860SSara Sharon * free. 272534e10860SSara Sharon */ 27264b387906SAvraham Stern if (mvm->queue_info[txq_id].status == IWL_MVM_QUEUE_RESERVED) { 272734e10860SSara Sharon mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_FREE; 27284b387906SAvraham Stern tid_data->txq_id = IWL_MVM_INVALID_QUEUE; 27294b387906SAvraham Stern } 273034e10860SSara Sharon 273134e10860SSara Sharon spin_unlock_bh(&mvm->queue_info_lock); 273234e10860SSara Sharon } 273334e10860SSara Sharon 2734e705c121SKalle Valo int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2735e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 2736e705c121SKalle Valo { 2737e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2738e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2739e705c121SKalle Valo u16 txq_id; 2740e705c121SKalle Valo int err; 2741e705c121SKalle Valo 2742e705c121SKalle Valo /* 2743e705c121SKalle Valo * If mac80211 is cleaning its state, then say that we finished since 2744e705c121SKalle Valo * our state has been cleared anyway. 2745e705c121SKalle Valo */ 2746e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 2747e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 2748e705c121SKalle Valo return 0; 2749e705c121SKalle Valo } 2750e705c121SKalle Valo 2751e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2752e705c121SKalle Valo 2753e705c121SKalle Valo txq_id = tid_data->txq_id; 2754e705c121SKalle Valo 2755e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Stop AGG: sta %d tid %d q %d state %d\n", 2756e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 2757e705c121SKalle Valo 2758e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 2759e705c121SKalle Valo 27604b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 2761e705c121SKalle Valo 2762e705c121SKalle Valo switch (tid_data->state) { 2763e705c121SKalle Valo case IWL_AGG_ON: 2764e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 2765e705c121SKalle Valo 2766e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 2767e705c121SKalle Valo "ssn = %d, next_recl = %d\n", 2768e705c121SKalle Valo tid_data->ssn, tid_data->next_reclaimed); 2769e705c121SKalle Valo 2770e705c121SKalle Valo tid_data->ssn = 0xffff; 2771e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 2772e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2773e705c121SKalle Valo 2774e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 2775e705c121SKalle Valo 2776e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 2777e705c121SKalle Valo return 0; 2778e705c121SKalle Valo case IWL_AGG_STARTING: 2779e705c121SKalle Valo case IWL_EMPTYING_HW_QUEUE_ADDBA: 2780e705c121SKalle Valo /* 2781e705c121SKalle Valo * The agg session has been stopped before it was set up. This 2782e705c121SKalle Valo * can happen when the AddBA timer times out for example. 2783e705c121SKalle Valo */ 2784e705c121SKalle Valo 2785e705c121SKalle Valo /* No barriers since we are under mutex */ 2786e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2787e705c121SKalle Valo 2788e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 2789e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 2790e705c121SKalle Valo err = 0; 2791e705c121SKalle Valo break; 2792e705c121SKalle Valo default: 2793e705c121SKalle Valo IWL_ERR(mvm, 2794e705c121SKalle Valo "Stopping AGG while state not ON or starting for %d on %d (%d)\n", 2795e705c121SKalle Valo mvmsta->sta_id, tid, tid_data->state); 2796e705c121SKalle Valo IWL_ERR(mvm, 2797e705c121SKalle Valo "\ttid_data->txq_id = %d\n", tid_data->txq_id); 2798e705c121SKalle Valo err = -EINVAL; 2799e705c121SKalle Valo } 2800e705c121SKalle Valo 2801e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2802e705c121SKalle Valo 2803e705c121SKalle Valo return err; 2804e705c121SKalle Valo } 2805e705c121SKalle Valo 2806e705c121SKalle Valo int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2807e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 2808e705c121SKalle Valo { 2809e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2810e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2811e705c121SKalle Valo u16 txq_id; 2812e705c121SKalle Valo enum iwl_mvm_agg_state old_state; 2813e705c121SKalle Valo 2814e705c121SKalle Valo /* 2815e705c121SKalle Valo * First set the agg state to OFF to avoid calling 2816e705c121SKalle Valo * ieee80211_stop_tx_ba_cb in iwl_mvm_check_ratid_empty. 2817e705c121SKalle Valo */ 2818e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2819e705c121SKalle Valo txq_id = tid_data->txq_id; 2820e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Flush AGG: sta %d tid %d q %d state %d\n", 2821e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 2822e705c121SKalle Valo old_state = tid_data->state; 2823e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 2824e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 2825e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2826e705c121SKalle Valo 28274b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 2828e705c121SKalle Valo 2829e705c121SKalle Valo if (old_state >= IWL_AGG_ON) { 2830e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, true); 2831d167e81aSMordechai Goodstein 2832d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) { 2833d167e81aSMordechai Goodstein if (iwl_mvm_flush_sta_tids(mvm, mvmsta->sta_id, 2834d167e81aSMordechai Goodstein BIT(tid), 0)) 2835d167e81aSMordechai Goodstein IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 2836d167e81aSMordechai Goodstein iwl_trans_wait_txq_empty(mvm->trans, txq_id); 2837d167e81aSMordechai Goodstein } else { 2838e705c121SKalle Valo if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id), 0)) 2839e705c121SKalle Valo IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 28400b90964aSSara Sharon iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(txq_id)); 2841d167e81aSMordechai Goodstein } 2842d6d517b7SSara Sharon 2843e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, false); 2844e705c121SKalle Valo 2845e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 2846e705c121SKalle Valo } 2847e705c121SKalle Valo 2848e705c121SKalle Valo return 0; 2849e705c121SKalle Valo } 2850e705c121SKalle Valo 2851e705c121SKalle Valo static int iwl_mvm_set_fw_key_idx(struct iwl_mvm *mvm) 2852e705c121SKalle Valo { 2853e705c121SKalle Valo int i, max = -1, max_offs = -1; 2854e705c121SKalle Valo 2855e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2856e705c121SKalle Valo 2857e705c121SKalle Valo /* Pick the unused key offset with the highest 'deleted' 2858e705c121SKalle Valo * counter. Every time a key is deleted, all the counters 2859e705c121SKalle Valo * are incremented and the one that was just deleted is 2860e705c121SKalle Valo * reset to zero. Thus, the highest counter is the one 2861e705c121SKalle Valo * that was deleted longest ago. Pick that one. 2862e705c121SKalle Valo */ 2863e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 2864e705c121SKalle Valo if (test_bit(i, mvm->fw_key_table)) 2865e705c121SKalle Valo continue; 2866e705c121SKalle Valo if (mvm->fw_key_deleted[i] > max) { 2867e705c121SKalle Valo max = mvm->fw_key_deleted[i]; 2868e705c121SKalle Valo max_offs = i; 2869e705c121SKalle Valo } 2870e705c121SKalle Valo } 2871e705c121SKalle Valo 2872e705c121SKalle Valo if (max_offs < 0) 2873e705c121SKalle Valo return STA_KEY_IDX_INVALID; 2874e705c121SKalle Valo 2875e705c121SKalle Valo return max_offs; 2876e705c121SKalle Valo } 2877e705c121SKalle Valo 28785f7a1847SJohannes Berg static struct iwl_mvm_sta *iwl_mvm_get_key_sta(struct iwl_mvm *mvm, 28794615fd15SEmmanuel Grumbach struct ieee80211_vif *vif, 2880e705c121SKalle Valo struct ieee80211_sta *sta) 2881e705c121SKalle Valo { 2882e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2883e705c121SKalle Valo 28845f7a1847SJohannes Berg if (sta) 28855f7a1847SJohannes Berg return iwl_mvm_sta_from_mac80211(sta); 2886e705c121SKalle Valo 2887e705c121SKalle Valo /* 2888e705c121SKalle Valo * The device expects GTKs for station interfaces to be 2889e705c121SKalle Valo * installed as GTKs for the AP station. If we have no 2890e705c121SKalle Valo * station ID, then use AP's station ID. 2891e705c121SKalle Valo */ 2892e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 28930ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 28944615fd15SEmmanuel Grumbach u8 sta_id = mvmvif->ap_sta_id; 28954615fd15SEmmanuel Grumbach 28967d6a1ab6SEmmanuel Grumbach sta = rcu_dereference_check(mvm->fw_id_to_mac_id[sta_id], 28977d6a1ab6SEmmanuel Grumbach lockdep_is_held(&mvm->mutex)); 28987d6a1ab6SEmmanuel Grumbach 28994615fd15SEmmanuel Grumbach /* 29004615fd15SEmmanuel Grumbach * It is possible that the 'sta' parameter is NULL, 29014615fd15SEmmanuel Grumbach * for example when a GTK is removed - the sta_id will then 29024615fd15SEmmanuel Grumbach * be the AP ID, and no station was passed by mac80211. 29034615fd15SEmmanuel Grumbach */ 29047d6a1ab6SEmmanuel Grumbach if (IS_ERR_OR_NULL(sta)) 29057d6a1ab6SEmmanuel Grumbach return NULL; 29067d6a1ab6SEmmanuel Grumbach 29077d6a1ab6SEmmanuel Grumbach return iwl_mvm_sta_from_mac80211(sta); 29084615fd15SEmmanuel Grumbach } 2909e705c121SKalle Valo 29105f7a1847SJohannes Berg return NULL; 2911e705c121SKalle Valo } 2912e705c121SKalle Valo 2913e705c121SKalle Valo static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm, 291485aeb58cSDavid Spinadel u32 sta_id, 291545c458b4SSara Sharon struct ieee80211_key_conf *key, bool mcast, 29164615fd15SEmmanuel Grumbach u32 tkip_iv32, u16 *tkip_p1k, u32 cmd_flags, 29174883145aSEmmanuel Grumbach u8 key_offset, bool mfp) 2918e705c121SKalle Valo { 291945c458b4SSara Sharon union { 292045c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 292145c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd cmd; 292245c458b4SSara Sharon } u = {}; 2923e705c121SKalle Valo __le16 key_flags; 2924e705c121SKalle Valo int ret; 2925e705c121SKalle Valo u32 status; 2926e705c121SKalle Valo u16 keyidx; 292745c458b4SSara Sharon u64 pn = 0; 292845c458b4SSara Sharon int i, size; 292945c458b4SSara Sharon bool new_api = fw_has_api(&mvm->fw->ucode_capa, 293045c458b4SSara Sharon IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 2931e705c121SKalle Valo 293285aeb58cSDavid Spinadel if (sta_id == IWL_MVM_INVALID_STA) 293385aeb58cSDavid Spinadel return -EINVAL; 293485aeb58cSDavid Spinadel 293545c458b4SSara Sharon keyidx = (key->keyidx << STA_KEY_FLG_KEYID_POS) & 2936e705c121SKalle Valo STA_KEY_FLG_KEYID_MSK; 2937e705c121SKalle Valo key_flags = cpu_to_le16(keyidx); 2938e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_KEY_MAP); 2939e705c121SKalle Valo 294045c458b4SSara Sharon switch (key->cipher) { 2941e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 2942e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_TKIP); 294345c458b4SSara Sharon if (new_api) { 294445c458b4SSara Sharon memcpy((void *)&u.cmd.tx_mic_key, 294545c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], 294645c458b4SSara Sharon IWL_MIC_KEY_SIZE); 294745c458b4SSara Sharon 294845c458b4SSara Sharon memcpy((void *)&u.cmd.rx_mic_key, 294945c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], 295045c458b4SSara Sharon IWL_MIC_KEY_SIZE); 295145c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 295245c458b4SSara Sharon 295345c458b4SSara Sharon } else { 295445c458b4SSara Sharon u.cmd_v1.tkip_rx_tsc_byte2 = tkip_iv32; 2955e705c121SKalle Valo for (i = 0; i < 5; i++) 295645c458b4SSara Sharon u.cmd_v1.tkip_rx_ttak[i] = 295745c458b4SSara Sharon cpu_to_le16(tkip_p1k[i]); 295845c458b4SSara Sharon } 295945c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 2960e705c121SKalle Valo break; 2961e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 2962e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_CCM); 296345c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 296445c458b4SSara Sharon if (new_api) 296545c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 2966e705c121SKalle Valo break; 2967e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 2968e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_13BYTES); 2969e705c121SKalle Valo /* fall through */ 2970e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 2971e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP); 297245c458b4SSara Sharon memcpy(u.cmd.common.key + 3, key->key, key->keylen); 2973e705c121SKalle Valo break; 29742a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 29752a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_KEY_32BYTES); 29762a53d166SAyala Beker /* fall through */ 29772a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 29782a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_GCMP); 297945c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 298045c458b4SSara Sharon if (new_api) 298145c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 29822a53d166SAyala Beker break; 2983e705c121SKalle Valo default: 2984e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_EXT); 298545c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 2986e705c121SKalle Valo } 2987e705c121SKalle Valo 2988e705c121SKalle Valo if (mcast) 2989e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 29904883145aSEmmanuel Grumbach if (mfp) 29914883145aSEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MFP); 2992e705c121SKalle Valo 299345c458b4SSara Sharon u.cmd.common.key_offset = key_offset; 299445c458b4SSara Sharon u.cmd.common.key_flags = key_flags; 299585aeb58cSDavid Spinadel u.cmd.common.sta_id = sta_id; 299645c458b4SSara Sharon 299745c458b4SSara Sharon if (new_api) { 299845c458b4SSara Sharon u.cmd.transmit_seq_cnt = cpu_to_le64(pn); 299945c458b4SSara Sharon size = sizeof(u.cmd); 300045c458b4SSara Sharon } else { 300145c458b4SSara Sharon size = sizeof(u.cmd_v1); 300245c458b4SSara Sharon } 3003e705c121SKalle Valo 3004e705c121SKalle Valo status = ADD_STA_SUCCESS; 3005e705c121SKalle Valo if (cmd_flags & CMD_ASYNC) 300645c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA_KEY, CMD_ASYNC, size, 300745c458b4SSara Sharon &u.cmd); 3008e705c121SKalle Valo else 300945c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, 301045c458b4SSara Sharon &u.cmd, &status); 3011e705c121SKalle Valo 3012e705c121SKalle Valo switch (status) { 3013e705c121SKalle Valo case ADD_STA_SUCCESS: 3014e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "MODIFY_STA: set dynamic key passed\n"); 3015e705c121SKalle Valo break; 3016e705c121SKalle Valo default: 3017e705c121SKalle Valo ret = -EIO; 3018e705c121SKalle Valo IWL_ERR(mvm, "MODIFY_STA: set dynamic key failed\n"); 3019e705c121SKalle Valo break; 3020e705c121SKalle Valo } 3021e705c121SKalle Valo 3022e705c121SKalle Valo return ret; 3023e705c121SKalle Valo } 3024e705c121SKalle Valo 3025e705c121SKalle Valo static int iwl_mvm_send_sta_igtk(struct iwl_mvm *mvm, 3026e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3027e705c121SKalle Valo u8 sta_id, bool remove_key) 3028e705c121SKalle Valo { 3029e705c121SKalle Valo struct iwl_mvm_mgmt_mcast_key_cmd igtk_cmd = {}; 3030e705c121SKalle Valo 3031e705c121SKalle Valo /* verify the key details match the required command's expectations */ 30328e160ab8SAyala Beker if (WARN_ON((keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) || 30338e160ab8SAyala Beker (keyconf->keyidx != 4 && keyconf->keyidx != 5) || 30348e160ab8SAyala Beker (keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC && 30358e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_128 && 30368e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_256))) 30378e160ab8SAyala Beker return -EINVAL; 30388e160ab8SAyala Beker 30398e160ab8SAyala Beker if (WARN_ON(!iwl_mvm_has_new_rx_api(mvm) && 30408e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC)) 3041e705c121SKalle Valo return -EINVAL; 3042e705c121SKalle Valo 3043e705c121SKalle Valo igtk_cmd.key_id = cpu_to_le32(keyconf->keyidx); 3044e705c121SKalle Valo igtk_cmd.sta_id = cpu_to_le32(sta_id); 3045e705c121SKalle Valo 3046e705c121SKalle Valo if (remove_key) { 3047e705c121SKalle Valo igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_NOT_VALID); 3048e705c121SKalle Valo } else { 3049e705c121SKalle Valo struct ieee80211_key_seq seq; 3050e705c121SKalle Valo const u8 *pn; 3051e705c121SKalle Valo 3052aa950524SAyala Beker switch (keyconf->cipher) { 3053aa950524SAyala Beker case WLAN_CIPHER_SUITE_AES_CMAC: 3054aa950524SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_CCM); 3055aa950524SAyala Beker break; 30568e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_128: 30578e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_256: 30588e160ab8SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_GCMP); 30598e160ab8SAyala Beker break; 3060aa950524SAyala Beker default: 3061aa950524SAyala Beker return -EINVAL; 3062aa950524SAyala Beker } 3063aa950524SAyala Beker 30648e160ab8SAyala Beker memcpy(igtk_cmd.igtk, keyconf->key, keyconf->keylen); 30658e160ab8SAyala Beker if (keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 30668e160ab8SAyala Beker igtk_cmd.ctrl_flags |= 30678e160ab8SAyala Beker cpu_to_le32(STA_KEY_FLG_KEY_32BYTES); 3068e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3069e705c121SKalle Valo pn = seq.aes_cmac.pn; 3070e705c121SKalle Valo igtk_cmd.receive_seq_cnt = cpu_to_le64(((u64) pn[5] << 0) | 3071e705c121SKalle Valo ((u64) pn[4] << 8) | 3072e705c121SKalle Valo ((u64) pn[3] << 16) | 3073e705c121SKalle Valo ((u64) pn[2] << 24) | 3074e705c121SKalle Valo ((u64) pn[1] << 32) | 3075e705c121SKalle Valo ((u64) pn[0] << 40)); 3076e705c121SKalle Valo } 3077e705c121SKalle Valo 3078e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "%s igtk for sta %u\n", 3079e705c121SKalle Valo remove_key ? "removing" : "installing", 3080e705c121SKalle Valo igtk_cmd.sta_id); 3081e705c121SKalle Valo 30828e160ab8SAyala Beker if (!iwl_mvm_has_new_rx_api(mvm)) { 30838e160ab8SAyala Beker struct iwl_mvm_mgmt_mcast_key_cmd_v1 igtk_cmd_v1 = { 30848e160ab8SAyala Beker .ctrl_flags = igtk_cmd.ctrl_flags, 30858e160ab8SAyala Beker .key_id = igtk_cmd.key_id, 30868e160ab8SAyala Beker .sta_id = igtk_cmd.sta_id, 30878e160ab8SAyala Beker .receive_seq_cnt = igtk_cmd.receive_seq_cnt 30888e160ab8SAyala Beker }; 30898e160ab8SAyala Beker 30908e160ab8SAyala Beker memcpy(igtk_cmd_v1.igtk, igtk_cmd.igtk, 30918e160ab8SAyala Beker ARRAY_SIZE(igtk_cmd_v1.igtk)); 30928e160ab8SAyala Beker return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 30938e160ab8SAyala Beker sizeof(igtk_cmd_v1), &igtk_cmd_v1); 30948e160ab8SAyala Beker } 3095e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 3096e705c121SKalle Valo sizeof(igtk_cmd), &igtk_cmd); 3097e705c121SKalle Valo } 3098e705c121SKalle Valo 3099e705c121SKalle Valo 3100e705c121SKalle Valo static inline u8 *iwl_mvm_get_mac_addr(struct iwl_mvm *mvm, 3101e705c121SKalle Valo struct ieee80211_vif *vif, 3102e705c121SKalle Valo struct ieee80211_sta *sta) 3103e705c121SKalle Valo { 3104e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3105e705c121SKalle Valo 3106e705c121SKalle Valo if (sta) 3107e705c121SKalle Valo return sta->addr; 3108e705c121SKalle Valo 3109e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 31100ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 3111e705c121SKalle Valo u8 sta_id = mvmvif->ap_sta_id; 3112e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 3113e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3114e705c121SKalle Valo return sta->addr; 3115e705c121SKalle Valo } 3116e705c121SKalle Valo 3117e705c121SKalle Valo 3118e705c121SKalle Valo return NULL; 3119e705c121SKalle Valo } 3120e705c121SKalle Valo 3121e705c121SKalle Valo static int __iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3122e705c121SKalle Valo struct ieee80211_vif *vif, 3123e705c121SKalle Valo struct ieee80211_sta *sta, 3124e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 31254615fd15SEmmanuel Grumbach u8 key_offset, 3126e705c121SKalle Valo bool mcast) 3127e705c121SKalle Valo { 3128e705c121SKalle Valo int ret; 3129e705c121SKalle Valo const u8 *addr; 3130e705c121SKalle Valo struct ieee80211_key_seq seq; 3131e705c121SKalle Valo u16 p1k[5]; 313285aeb58cSDavid Spinadel u32 sta_id; 31334883145aSEmmanuel Grumbach bool mfp = false; 313485aeb58cSDavid Spinadel 313585aeb58cSDavid Spinadel if (sta) { 313685aeb58cSDavid Spinadel struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 313785aeb58cSDavid Spinadel 313885aeb58cSDavid Spinadel sta_id = mvm_sta->sta_id; 31394883145aSEmmanuel Grumbach mfp = sta->mfp; 314085aeb58cSDavid Spinadel } else if (vif->type == NL80211_IFTYPE_AP && 314185aeb58cSDavid Spinadel !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { 314285aeb58cSDavid Spinadel struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 314385aeb58cSDavid Spinadel 314485aeb58cSDavid Spinadel sta_id = mvmvif->mcast_sta.sta_id; 314585aeb58cSDavid Spinadel } else { 314685aeb58cSDavid Spinadel IWL_ERR(mvm, "Failed to find station id\n"); 314785aeb58cSDavid Spinadel return -EINVAL; 314885aeb58cSDavid Spinadel } 3149e705c121SKalle Valo 3150e705c121SKalle Valo switch (keyconf->cipher) { 3151e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 315285aeb58cSDavid Spinadel if (vif->type == NL80211_IFTYPE_AP) { 315385aeb58cSDavid Spinadel ret = -EINVAL; 315485aeb58cSDavid Spinadel break; 315585aeb58cSDavid Spinadel } 3156e705c121SKalle Valo addr = iwl_mvm_get_mac_addr(mvm, vif, sta); 3157e705c121SKalle Valo /* get phase 1 key from mac80211 */ 3158e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3159e705c121SKalle Valo ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k); 316085aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 31614883145aSEmmanuel Grumbach seq.tkip.iv32, p1k, 0, key_offset, 31624883145aSEmmanuel Grumbach mfp); 3163e705c121SKalle Valo break; 3164e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 3165e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 3166e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 31672a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 31682a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 316985aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 31704883145aSEmmanuel Grumbach 0, NULL, 0, key_offset, mfp); 3171e705c121SKalle Valo break; 3172e705c121SKalle Valo default: 317385aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 31744883145aSEmmanuel Grumbach 0, NULL, 0, key_offset, mfp); 3175e705c121SKalle Valo } 3176e705c121SKalle Valo 3177e705c121SKalle Valo return ret; 3178e705c121SKalle Valo } 3179e705c121SKalle Valo 3180e705c121SKalle Valo static int __iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, u8 sta_id, 3181e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3182e705c121SKalle Valo bool mcast) 3183e705c121SKalle Valo { 318445c458b4SSara Sharon union { 318545c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 318645c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd cmd; 318745c458b4SSara Sharon } u = {}; 318845c458b4SSara Sharon bool new_api = fw_has_api(&mvm->fw->ucode_capa, 318945c458b4SSara Sharon IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 3190e705c121SKalle Valo __le16 key_flags; 319145c458b4SSara Sharon int ret, size; 3192e705c121SKalle Valo u32 status; 3193e705c121SKalle Valo 3194e4f13ad0SSara Sharon /* This is a valid situation for GTK removal */ 319585aeb58cSDavid Spinadel if (sta_id == IWL_MVM_INVALID_STA) 3196e4f13ad0SSara Sharon return 0; 319785aeb58cSDavid Spinadel 3198e705c121SKalle Valo key_flags = cpu_to_le16((keyconf->keyidx << STA_KEY_FLG_KEYID_POS) & 3199e705c121SKalle Valo STA_KEY_FLG_KEYID_MSK); 3200e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_NO_ENC | STA_KEY_FLG_WEP_KEY_MAP); 3201e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_NOT_VALID); 3202e705c121SKalle Valo 3203e705c121SKalle Valo if (mcast) 3204e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 3205e705c121SKalle Valo 320645c458b4SSara Sharon /* 320745c458b4SSara Sharon * The fields assigned here are in the same location at the start 320845c458b4SSara Sharon * of the command, so we can do this union trick. 320945c458b4SSara Sharon */ 321045c458b4SSara Sharon u.cmd.common.key_flags = key_flags; 321145c458b4SSara Sharon u.cmd.common.key_offset = keyconf->hw_key_idx; 321245c458b4SSara Sharon u.cmd.common.sta_id = sta_id; 321345c458b4SSara Sharon 321445c458b4SSara Sharon size = new_api ? sizeof(u.cmd) : sizeof(u.cmd_v1); 3215e705c121SKalle Valo 3216e705c121SKalle Valo status = ADD_STA_SUCCESS; 321745c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, &u.cmd, 321845c458b4SSara Sharon &status); 3219e705c121SKalle Valo 3220e705c121SKalle Valo switch (status) { 3221e705c121SKalle Valo case ADD_STA_SUCCESS: 3222e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "MODIFY_STA: remove sta key passed\n"); 3223e705c121SKalle Valo break; 3224e705c121SKalle Valo default: 3225e705c121SKalle Valo ret = -EIO; 3226e705c121SKalle Valo IWL_ERR(mvm, "MODIFY_STA: remove sta key failed\n"); 3227e705c121SKalle Valo break; 3228e705c121SKalle Valo } 3229e705c121SKalle Valo 3230e705c121SKalle Valo return ret; 3231e705c121SKalle Valo } 3232e705c121SKalle Valo 3233e705c121SKalle Valo int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3234e705c121SKalle Valo struct ieee80211_vif *vif, 3235e705c121SKalle Valo struct ieee80211_sta *sta, 3236e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 32374615fd15SEmmanuel Grumbach u8 key_offset) 3238e705c121SKalle Valo { 3239e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 32405f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 324185aeb58cSDavid Spinadel u8 sta_id = IWL_MVM_INVALID_STA; 3242e705c121SKalle Valo int ret; 3243e705c121SKalle Valo static const u8 __maybe_unused zero_addr[ETH_ALEN] = {0}; 3244e705c121SKalle Valo 3245e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3246e705c121SKalle Valo 324785aeb58cSDavid Spinadel if (vif->type != NL80211_IFTYPE_AP || 324885aeb58cSDavid Spinadel keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) { 3249e705c121SKalle Valo /* Get the station id from the mvm local station table */ 32505f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 32515f7a1847SJohannes Berg if (!mvm_sta) { 32525f7a1847SJohannes Berg IWL_ERR(mvm, "Failed to find station\n"); 3253e705c121SKalle Valo return -EINVAL; 3254e705c121SKalle Valo } 32555f7a1847SJohannes Berg sta_id = mvm_sta->sta_id; 3256e705c121SKalle Valo 3257e705c121SKalle Valo /* 3258e705c121SKalle Valo * It is possible that the 'sta' parameter is NULL, and thus 325985aeb58cSDavid Spinadel * there is a need to retrieve the sta from the local station 326085aeb58cSDavid Spinadel * table. 3261e705c121SKalle Valo */ 3262e705c121SKalle Valo if (!sta) { 326385aeb58cSDavid Spinadel sta = rcu_dereference_protected( 326485aeb58cSDavid Spinadel mvm->fw_id_to_mac_id[sta_id], 3265e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3266e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) { 3267e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 3268e705c121SKalle Valo return -EINVAL; 3269e705c121SKalle Valo } 3270e705c121SKalle Valo } 3271e705c121SKalle Valo 3272e705c121SKalle Valo if (WARN_ON_ONCE(iwl_mvm_sta_from_mac80211(sta)->vif != vif)) 3273e705c121SKalle Valo return -EINVAL; 3274e829b17cSBeni Lev } else { 3275e829b17cSBeni Lev struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3276e829b17cSBeni Lev 3277e829b17cSBeni Lev sta_id = mvmvif->mcast_sta.sta_id; 3278e829b17cSBeni Lev } 3279e829b17cSBeni Lev 3280e829b17cSBeni Lev if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3281e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3282e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) { 3283e829b17cSBeni Lev ret = iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, false); 3284e829b17cSBeni Lev goto end; 328585aeb58cSDavid Spinadel } 3286e705c121SKalle Valo 32874615fd15SEmmanuel Grumbach /* If the key_offset is not pre-assigned, we need to find a 32884615fd15SEmmanuel Grumbach * new offset to use. In normal cases, the offset is not 32894615fd15SEmmanuel Grumbach * pre-assigned, but during HW_RESTART we want to reuse the 32904615fd15SEmmanuel Grumbach * same indices, so we pass them when this function is called. 32914615fd15SEmmanuel Grumbach * 32924615fd15SEmmanuel Grumbach * In D3 entry, we need to hardcoded the indices (because the 32934615fd15SEmmanuel Grumbach * firmware hardcodes the PTK offset to 0). In this case, we 32944615fd15SEmmanuel Grumbach * need to make sure we don't overwrite the hw_key_idx in the 32954615fd15SEmmanuel Grumbach * keyconf structure, because otherwise we cannot configure 32964615fd15SEmmanuel Grumbach * the original ones back when resuming. 3297e705c121SKalle Valo */ 32984615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) { 32994615fd15SEmmanuel Grumbach key_offset = iwl_mvm_set_fw_key_idx(mvm); 33004615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) 3301e705c121SKalle Valo return -ENOSPC; 33024615fd15SEmmanuel Grumbach keyconf->hw_key_idx = key_offset; 3303e705c121SKalle Valo } 3304e705c121SKalle Valo 33054615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, key_offset, mcast); 33069c3deeb5SLuca Coelho if (ret) 3307e705c121SKalle Valo goto end; 3308e705c121SKalle Valo 3309e705c121SKalle Valo /* 3310e705c121SKalle Valo * For WEP, the same key is used for multicast and unicast. Upload it 3311e705c121SKalle Valo * again, using the same key offset, and now pointing the other one 3312e705c121SKalle Valo * to the same key slot (offset). 3313e705c121SKalle Valo * If this fails, remove the original as well. 3314e705c121SKalle Valo */ 331585aeb58cSDavid Spinadel if ((keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 331685aeb58cSDavid Spinadel keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) && 331785aeb58cSDavid Spinadel sta) { 33184615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, 33194615fd15SEmmanuel Grumbach key_offset, !mcast); 3320e705c121SKalle Valo if (ret) { 3321e705c121SKalle Valo __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 33229c3deeb5SLuca Coelho goto end; 3323e705c121SKalle Valo } 3324e705c121SKalle Valo } 3325e705c121SKalle Valo 33269c3deeb5SLuca Coelho __set_bit(key_offset, mvm->fw_key_table); 33279c3deeb5SLuca Coelho 3328e705c121SKalle Valo end: 3329e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "key: cipher=%x len=%d idx=%d sta=%pM ret=%d\n", 3330e705c121SKalle Valo keyconf->cipher, keyconf->keylen, keyconf->keyidx, 3331e705c121SKalle Valo sta ? sta->addr : zero_addr, ret); 3332e705c121SKalle Valo return ret; 3333e705c121SKalle Valo } 3334e705c121SKalle Valo 3335e705c121SKalle Valo int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, 3336e705c121SKalle Valo struct ieee80211_vif *vif, 3337e705c121SKalle Valo struct ieee80211_sta *sta, 3338e705c121SKalle Valo struct ieee80211_key_conf *keyconf) 3339e705c121SKalle Valo { 3340e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 33415f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 33420ae98812SSara Sharon u8 sta_id = IWL_MVM_INVALID_STA; 3343e705c121SKalle Valo int ret, i; 3344e705c121SKalle Valo 3345e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3346e705c121SKalle Valo 33475f7a1847SJohannes Berg /* Get the station from the mvm local station table */ 33485f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 334971793b7dSLuca Coelho if (mvm_sta) 3350cd4d23c1SIlan Peer sta_id = mvm_sta->sta_id; 335185aeb58cSDavid Spinadel else if (!sta && vif->type == NL80211_IFTYPE_AP && mcast) 335285aeb58cSDavid Spinadel sta_id = iwl_mvm_vif_from_mac80211(vif)->mcast_sta.sta_id; 335385aeb58cSDavid Spinadel 3354e705c121SKalle Valo 3355e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "mvm remove dynamic key: idx=%d sta=%d\n", 3356e705c121SKalle Valo keyconf->keyidx, sta_id); 3357e705c121SKalle Valo 335871793b7dSLuca Coelho if (mvm_sta && (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 33598e160ab8SAyala Beker keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 336071793b7dSLuca Coelho keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) 3361e705c121SKalle Valo return iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, true); 3362e705c121SKalle Valo 3363e705c121SKalle Valo if (!__test_and_clear_bit(keyconf->hw_key_idx, mvm->fw_key_table)) { 3364e705c121SKalle Valo IWL_ERR(mvm, "offset %d not used in fw key table.\n", 3365e705c121SKalle Valo keyconf->hw_key_idx); 3366e705c121SKalle Valo return -ENOENT; 3367e705c121SKalle Valo } 3368e705c121SKalle Valo 3369e705c121SKalle Valo /* track which key was deleted last */ 3370e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3371e705c121SKalle Valo if (mvm->fw_key_deleted[i] < U8_MAX) 3372e705c121SKalle Valo mvm->fw_key_deleted[i]++; 3373e705c121SKalle Valo } 3374e705c121SKalle Valo mvm->fw_key_deleted[keyconf->hw_key_idx] = 0; 3375e705c121SKalle Valo 337685aeb58cSDavid Spinadel if (sta && !mvm_sta) { 3377e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "station non-existent, early return.\n"); 3378e705c121SKalle Valo return 0; 3379e705c121SKalle Valo } 3380e705c121SKalle Valo 3381e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 3382e705c121SKalle Valo if (ret) 3383e705c121SKalle Valo return ret; 3384e705c121SKalle Valo 3385e705c121SKalle Valo /* delete WEP key twice to get rid of (now useless) offset */ 3386e705c121SKalle Valo if (keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 3387e705c121SKalle Valo keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) 3388e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, !mcast); 3389e705c121SKalle Valo 3390e705c121SKalle Valo return ret; 3391e705c121SKalle Valo } 3392e705c121SKalle Valo 3393e705c121SKalle Valo void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, 3394e705c121SKalle Valo struct ieee80211_vif *vif, 3395e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3396e705c121SKalle Valo struct ieee80211_sta *sta, u32 iv32, 3397e705c121SKalle Valo u16 *phase1key) 3398e705c121SKalle Valo { 3399e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3400e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 34014883145aSEmmanuel Grumbach bool mfp = sta ? sta->mfp : false; 3402e705c121SKalle Valo 3403e705c121SKalle Valo rcu_read_lock(); 3404e705c121SKalle Valo 34055f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 34065f7a1847SJohannes Berg if (WARN_ON_ONCE(!mvm_sta)) 340712f17211SEmmanuel Grumbach goto unlock; 340885aeb58cSDavid Spinadel iwl_mvm_send_sta_key(mvm, mvm_sta->sta_id, keyconf, mcast, 34094883145aSEmmanuel Grumbach iv32, phase1key, CMD_ASYNC, keyconf->hw_key_idx, 34104883145aSEmmanuel Grumbach mfp); 341112f17211SEmmanuel Grumbach 341212f17211SEmmanuel Grumbach unlock: 3413e705c121SKalle Valo rcu_read_unlock(); 3414e705c121SKalle Valo } 3415e705c121SKalle Valo 3416e705c121SKalle Valo void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, 3417e705c121SKalle Valo struct ieee80211_sta *sta) 3418e705c121SKalle Valo { 3419e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3420e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3421e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3422e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3423e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_PS), 3424e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3425e705c121SKalle Valo }; 3426e705c121SKalle Valo int ret; 3427e705c121SKalle Valo 3428854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3429854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3430e705c121SKalle Valo if (ret) 3431e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3432e705c121SKalle Valo } 3433e705c121SKalle Valo 3434e705c121SKalle Valo void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, 3435e705c121SKalle Valo struct ieee80211_sta *sta, 3436e705c121SKalle Valo enum ieee80211_frame_release_type reason, 3437e705c121SKalle Valo u16 cnt, u16 tids, bool more_data, 34389a3fcf91SSara Sharon bool single_sta_queue) 3439e705c121SKalle Valo { 3440e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3441e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3442e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3443e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3444e705c121SKalle Valo .modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT, 3445e705c121SKalle Valo .sleep_tx_count = cpu_to_le16(cnt), 3446e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3447e705c121SKalle Valo }; 3448e705c121SKalle Valo int tid, ret; 3449e705c121SKalle Valo unsigned long _tids = tids; 3450e705c121SKalle Valo 3451e705c121SKalle Valo /* convert TIDs to ACs - we don't support TSPEC so that's OK 3452e705c121SKalle Valo * Note that this field is reserved and unused by firmware not 3453e705c121SKalle Valo * supporting GO uAPSD, so it's safe to always do this. 3454e705c121SKalle Valo */ 3455e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) 3456e705c121SKalle Valo cmd.awake_acs |= BIT(tid_to_ucode_ac[tid]); 3457e705c121SKalle Valo 34589a3fcf91SSara Sharon /* If we're releasing frames from aggregation or dqa queues then check 34599a3fcf91SSara Sharon * if all the queues that we're releasing frames from, combined, have: 3460e705c121SKalle Valo * - more frames than the service period, in which case more_data 3461e705c121SKalle Valo * needs to be set 3462e705c121SKalle Valo * - fewer than 'cnt' frames, in which case we need to adjust the 3463e705c121SKalle Valo * firmware command (but do that unconditionally) 3464e705c121SKalle Valo */ 34659a3fcf91SSara Sharon if (single_sta_queue) { 3466e705c121SKalle Valo int remaining = cnt; 346736be0eb6SEmmanuel Grumbach int sleep_tx_count; 3468e705c121SKalle Valo 3469e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3470e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) { 3471e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 3472e705c121SKalle Valo u16 n_queued; 3473e705c121SKalle Valo 3474e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 3475e705c121SKalle Valo 3476dd32162dSLiad Kaufman n_queued = iwl_mvm_tid_queued(mvm, tid_data); 3477e705c121SKalle Valo if (n_queued > remaining) { 3478e705c121SKalle Valo more_data = true; 3479e705c121SKalle Valo remaining = 0; 3480e705c121SKalle Valo break; 3481e705c121SKalle Valo } 3482e705c121SKalle Valo remaining -= n_queued; 3483e705c121SKalle Valo } 348436be0eb6SEmmanuel Grumbach sleep_tx_count = cnt - remaining; 348536be0eb6SEmmanuel Grumbach if (reason == IEEE80211_FRAME_RELEASE_UAPSD) 348636be0eb6SEmmanuel Grumbach mvmsta->sleep_tx_count = sleep_tx_count; 3487e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3488e705c121SKalle Valo 348936be0eb6SEmmanuel Grumbach cmd.sleep_tx_count = cpu_to_le16(sleep_tx_count); 3490e705c121SKalle Valo if (WARN_ON(cnt - remaining == 0)) { 3491e705c121SKalle Valo ieee80211_sta_eosp(sta); 3492e705c121SKalle Valo return; 3493e705c121SKalle Valo } 3494e705c121SKalle Valo } 3495e705c121SKalle Valo 3496e705c121SKalle Valo /* Note: this is ignored by firmware not supporting GO uAPSD */ 3497e705c121SKalle Valo if (more_data) 3498ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_MOREDATA; 3499e705c121SKalle Valo 3500e705c121SKalle Valo if (reason == IEEE80211_FRAME_RELEASE_PSPOLL) { 3501e705c121SKalle Valo mvmsta->next_status_eosp = true; 3502ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_PS_POLL; 3503e705c121SKalle Valo } else { 3504ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_UAPSD; 3505e705c121SKalle Valo } 3506e705c121SKalle Valo 3507156f92f2SEmmanuel Grumbach /* block the Tx queues until the FW updated the sleep Tx count */ 3508156f92f2SEmmanuel Grumbach iwl_trans_block_txq_ptrs(mvm->trans, true); 3509156f92f2SEmmanuel Grumbach 3510156f92f2SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 3511156f92f2SEmmanuel Grumbach CMD_ASYNC | CMD_WANT_ASYNC_CALLBACK, 3512854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3513e705c121SKalle Valo if (ret) 3514e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3515e705c121SKalle Valo } 3516e705c121SKalle Valo 3517e705c121SKalle Valo void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm, 3518e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 3519e705c121SKalle Valo { 3520e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 3521e705c121SKalle Valo struct iwl_mvm_eosp_notification *notif = (void *)pkt->data; 3522e705c121SKalle Valo struct ieee80211_sta *sta; 3523e705c121SKalle Valo u32 sta_id = le32_to_cpu(notif->sta_id); 3524e705c121SKalle Valo 3525e705c121SKalle Valo if (WARN_ON_ONCE(sta_id >= IWL_MVM_STATION_COUNT)) 3526e705c121SKalle Valo return; 3527e705c121SKalle Valo 3528e705c121SKalle Valo rcu_read_lock(); 3529e705c121SKalle Valo sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 3530e705c121SKalle Valo if (!IS_ERR_OR_NULL(sta)) 3531e705c121SKalle Valo ieee80211_sta_eosp(sta); 3532e705c121SKalle Valo rcu_read_unlock(); 3533e705c121SKalle Valo } 3534e705c121SKalle Valo 3535e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm, 3536e705c121SKalle Valo struct iwl_mvm_sta *mvmsta, bool disable) 3537e705c121SKalle Valo { 3538e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3539e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3540e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3541e705c121SKalle Valo .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 3542e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 3543e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3544e705c121SKalle Valo }; 3545e705c121SKalle Valo int ret; 3546e705c121SKalle Valo 3547854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3548854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3549e705c121SKalle Valo if (ret) 3550e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3551e705c121SKalle Valo } 3552e705c121SKalle Valo 3553e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm, 3554e705c121SKalle Valo struct ieee80211_sta *sta, 3555e705c121SKalle Valo bool disable) 3556e705c121SKalle Valo { 3557e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3558e705c121SKalle Valo 3559e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 3560e705c121SKalle Valo 3561e705c121SKalle Valo if (mvm_sta->disable_tx == disable) { 3562e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 3563e705c121SKalle Valo return; 3564e705c121SKalle Valo } 3565e705c121SKalle Valo 3566e705c121SKalle Valo mvm_sta->disable_tx = disable; 3567e705c121SKalle Valo 3568c8f54701SJohannes Berg /* Tell mac80211 to start/stop queuing tx for this station */ 3569e705c121SKalle Valo ieee80211_sta_block_awake(mvm->hw, sta, disable); 3570e705c121SKalle Valo 3571e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvm_sta, disable); 3572e705c121SKalle Valo 3573e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 3574e705c121SKalle Valo } 3575e705c121SKalle Valo 3576ced19f26SSara Sharon static void iwl_mvm_int_sta_modify_disable_tx(struct iwl_mvm *mvm, 3577ced19f26SSara Sharon struct iwl_mvm_vif *mvmvif, 3578ced19f26SSara Sharon struct iwl_mvm_int_sta *sta, 3579ced19f26SSara Sharon bool disable) 3580ced19f26SSara Sharon { 3581ced19f26SSara Sharon u32 id = FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color); 3582ced19f26SSara Sharon struct iwl_mvm_add_sta_cmd cmd = { 3583ced19f26SSara Sharon .add_modify = STA_MODE_MODIFY, 3584ced19f26SSara Sharon .sta_id = sta->sta_id, 3585ced19f26SSara Sharon .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 3586ced19f26SSara Sharon .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 3587ced19f26SSara Sharon .mac_id_n_color = cpu_to_le32(id), 3588ced19f26SSara Sharon }; 3589ced19f26SSara Sharon int ret; 3590ced19f26SSara Sharon 3591ced19f26SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 0, 3592ced19f26SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3593ced19f26SSara Sharon if (ret) 3594ced19f26SSara Sharon IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3595ced19f26SSara Sharon } 3596ced19f26SSara Sharon 3597e705c121SKalle Valo void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm, 3598e705c121SKalle Valo struct iwl_mvm_vif *mvmvif, 3599e705c121SKalle Valo bool disable) 3600e705c121SKalle Valo { 3601e705c121SKalle Valo struct ieee80211_sta *sta; 3602e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3603e705c121SKalle Valo int i; 3604e705c121SKalle Valo 3605e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3606e705c121SKalle Valo 3607e705c121SKalle Valo /* Block/unblock all the stations of the given mvmvif */ 36080ae98812SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 3609e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 3610e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3611e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) 3612e705c121SKalle Valo continue; 3613e705c121SKalle Valo 3614e705c121SKalle Valo mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3615e705c121SKalle Valo if (mvm_sta->mac_id_n_color != 3616e705c121SKalle Valo FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)) 3617e705c121SKalle Valo continue; 3618e705c121SKalle Valo 3619e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx_ap(mvm, sta, disable); 3620e705c121SKalle Valo } 3621ced19f26SSara Sharon 3622ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3623ced19f26SSara Sharon return; 3624ced19f26SSara Sharon 3625ced19f26SSara Sharon /* Need to block/unblock also multicast station */ 3626ced19f26SSara Sharon if (mvmvif->mcast_sta.sta_id != IWL_MVM_INVALID_STA) 3627ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 3628ced19f26SSara Sharon &mvmvif->mcast_sta, disable); 3629ced19f26SSara Sharon 3630ced19f26SSara Sharon /* 3631ced19f26SSara Sharon * Only unblock the broadcast station (FW blocks it for immediate 3632ced19f26SSara Sharon * quiet, not the driver) 3633ced19f26SSara Sharon */ 3634ced19f26SSara Sharon if (!disable && mvmvif->bcast_sta.sta_id != IWL_MVM_INVALID_STA) 3635ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 3636ced19f26SSara Sharon &mvmvif->bcast_sta, disable); 3637e705c121SKalle Valo } 3638e705c121SKalle Valo 3639e705c121SKalle Valo void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 3640e705c121SKalle Valo { 3641e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3642e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 3643e705c121SKalle Valo 3644e705c121SKalle Valo rcu_read_lock(); 3645e705c121SKalle Valo 3646e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->ap_sta_id); 3647e705c121SKalle Valo 3648e705c121SKalle Valo if (!WARN_ON(!mvmsta)) 3649e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true); 3650e705c121SKalle Valo 3651e705c121SKalle Valo rcu_read_unlock(); 3652e705c121SKalle Valo } 3653dd32162dSLiad Kaufman 3654dd32162dSLiad Kaufman u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data) 3655dd32162dSLiad Kaufman { 3656dd32162dSLiad Kaufman u16 sn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3657dd32162dSLiad Kaufman 3658dd32162dSLiad Kaufman /* 36592f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 3660dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 3661dd32162dSLiad Kaufman */ 3662dd32162dSLiad Kaufman if (mvm->trans->cfg->gen2) 3663dd32162dSLiad Kaufman sn &= 0xff; 3664dd32162dSLiad Kaufman 3665dd32162dSLiad Kaufman return ieee80211_sn_sub(sn, tid_data->next_reclaimed); 3666dd32162dSLiad Kaufman } 3667