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 11475c6bdeSJohannes Berg * Copyright(c) 2018 - 2019 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 34475c6bdeSJohannes Berg * Copyright(c) 2018 - 2019 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 318bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 319bb49701bSSara Sharon return -EINVAL; 320bb49701bSSara Sharon 3219794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 3229794c64fSLiad Kaufman 3239794c64fSLiad Kaufman rcu_read_lock(); 3249794c64fSLiad Kaufman 3259794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 3269794c64fSLiad Kaufman 3279794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 3289794c64fSLiad Kaufman rcu_read_unlock(); 3299794c64fSLiad Kaufman return -EINVAL; 3309794c64fSLiad Kaufman } 3319794c64fSLiad Kaufman 3329794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 3339794c64fSLiad Kaufman 3349794c64fSLiad Kaufman mvmsta->tid_disable_agg |= disable_agg_tids; 3359794c64fSLiad Kaufman 3369794c64fSLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 3379794c64fSLiad Kaufman cmd.sta_id = mvmsta->sta_id; 3389794c64fSLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 3399794c64fSLiad Kaufman cmd.modify_mask = STA_MODIFY_QUEUES; 3409794c64fSLiad Kaufman if (disable_agg_tids) 3419794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 3429794c64fSLiad Kaufman if (remove_queue) 3439794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_QUEUE_REMOVAL; 3449794c64fSLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 3459794c64fSLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 3469794c64fSLiad Kaufman 3479794c64fSLiad Kaufman rcu_read_unlock(); 3489794c64fSLiad Kaufman 3499794c64fSLiad Kaufman /* Notify FW of queue removal from the STA queues */ 3509794c64fSLiad Kaufman status = ADD_STA_SUCCESS; 351b2c1bf59SSara Sharon return iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 3529794c64fSLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), 3539794c64fSLiad Kaufman &cmd, &status); 3549794c64fSLiad Kaufman } 3559794c64fSLiad Kaufman 356cfbc6c4cSSara Sharon static int iwl_mvm_disable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 357cfbc6c4cSSara Sharon int queue, u8 tid, u8 flags) 35899448a8cSJohannes Berg { 35999448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 36099448a8cSJohannes Berg .scd_queue = queue, 36199448a8cSJohannes Berg .action = SCD_CFG_DISABLE_QUEUE, 36299448a8cSJohannes Berg }; 36399448a8cSJohannes Berg int ret; 36499448a8cSJohannes Berg 36599448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) { 36699448a8cSJohannes Berg iwl_trans_txq_free(mvm->trans, queue); 36799448a8cSJohannes Berg 36899448a8cSJohannes Berg return 0; 36999448a8cSJohannes Berg } 37099448a8cSJohannes Berg 371f3f240f9SJohannes Berg if (WARN_ON(mvm->queue_info[queue].tid_bitmap == 0)) 37299448a8cSJohannes Berg return 0; 37399448a8cSJohannes Berg 37499448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 37599448a8cSJohannes Berg 3761c14089eSJohannes Berg cmd.action = mvm->queue_info[queue].tid_bitmap ? 37799448a8cSJohannes Berg SCD_CFG_ENABLE_QUEUE : SCD_CFG_DISABLE_QUEUE; 37899448a8cSJohannes Berg if (cmd.action == SCD_CFG_DISABLE_QUEUE) 37999448a8cSJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_FREE; 38099448a8cSJohannes Berg 38199448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 382cfbc6c4cSSara Sharon "Disabling TXQ #%d tids=0x%x\n", 38399448a8cSJohannes Berg queue, 384cfbc6c4cSSara Sharon mvm->queue_info[queue].tid_bitmap); 38599448a8cSJohannes Berg 38699448a8cSJohannes Berg /* If the queue is still enabled - nothing left to do in this func */ 387f3f240f9SJohannes Berg if (cmd.action == SCD_CFG_ENABLE_QUEUE) 38899448a8cSJohannes Berg return 0; 38999448a8cSJohannes Berg 39099448a8cSJohannes Berg cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 39199448a8cSJohannes Berg cmd.tid = mvm->queue_info[queue].txq_tid; 39299448a8cSJohannes Berg 39399448a8cSJohannes Berg /* Make sure queue info is correct even though we overwrite it */ 394cfbc6c4cSSara Sharon WARN(mvm->queue_info[queue].tid_bitmap, 395cfbc6c4cSSara Sharon "TXQ #%d info out-of-sync - tids=0x%x\n", 396cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 39799448a8cSJohannes Berg 39899448a8cSJohannes Berg /* If we are here - the queue is freed and we can zero out these vals */ 39999448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap = 0; 400cfbc6c4cSSara Sharon 401cfbc6c4cSSara Sharon if (sta) { 402cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 403cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 404cfbc6c4cSSara Sharon 405cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 406cfbc6c4cSSara Sharon } 40799448a8cSJohannes Berg 40899448a8cSJohannes Berg /* Regardless if this is a reserved TXQ for a STA - mark it as false */ 40999448a8cSJohannes Berg mvm->queue_info[queue].reserved = false; 41099448a8cSJohannes Berg 41199448a8cSJohannes Berg iwl_trans_txq_disable(mvm->trans, queue, false); 41299448a8cSJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, flags, 41399448a8cSJohannes Berg sizeof(struct iwl_scd_txq_cfg_cmd), &cmd); 41499448a8cSJohannes Berg 41599448a8cSJohannes Berg if (ret) 41699448a8cSJohannes Berg IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n", 41799448a8cSJohannes Berg queue, ret); 41899448a8cSJohannes Berg return ret; 41999448a8cSJohannes Berg } 42099448a8cSJohannes Berg 42142db09c1SLiad Kaufman static int iwl_mvm_get_queue_agg_tids(struct iwl_mvm *mvm, int queue) 42242db09c1SLiad Kaufman { 42342db09c1SLiad Kaufman struct ieee80211_sta *sta; 42442db09c1SLiad Kaufman struct iwl_mvm_sta *mvmsta; 42542db09c1SLiad Kaufman unsigned long tid_bitmap; 42642db09c1SLiad Kaufman unsigned long agg_tids = 0; 427806911daSSharon Dvir u8 sta_id; 42842db09c1SLiad Kaufman int tid; 42942db09c1SLiad Kaufman 43042db09c1SLiad Kaufman lockdep_assert_held(&mvm->mutex); 43142db09c1SLiad Kaufman 432bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 433bb49701bSSara Sharon return -EINVAL; 434bb49701bSSara Sharon 43542db09c1SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 43642db09c1SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 43742db09c1SLiad Kaufman 43842db09c1SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 43942db09c1SLiad Kaufman lockdep_is_held(&mvm->mutex)); 44042db09c1SLiad Kaufman 44142db09c1SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 44242db09c1SLiad Kaufman return -EINVAL; 44342db09c1SLiad Kaufman 44442db09c1SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 44542db09c1SLiad Kaufman 44642db09c1SLiad Kaufman spin_lock_bh(&mvmsta->lock); 44742db09c1SLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 44842db09c1SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 44942db09c1SLiad Kaufman agg_tids |= BIT(tid); 45042db09c1SLiad Kaufman } 45142db09c1SLiad Kaufman spin_unlock_bh(&mvmsta->lock); 45242db09c1SLiad Kaufman 45342db09c1SLiad Kaufman return agg_tids; 45442db09c1SLiad Kaufman } 45542db09c1SLiad Kaufman 4569794c64fSLiad Kaufman /* 4579794c64fSLiad Kaufman * Remove a queue from a station's resources. 4589794c64fSLiad Kaufman * Note that this only marks as free. It DOESN'T delete a BA agreement, and 4599794c64fSLiad Kaufman * doesn't disable the queue 4609794c64fSLiad Kaufman */ 4619794c64fSLiad Kaufman static int iwl_mvm_remove_sta_queue_marking(struct iwl_mvm *mvm, int queue) 4629794c64fSLiad Kaufman { 4639794c64fSLiad Kaufman struct ieee80211_sta *sta; 4649794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 4659794c64fSLiad Kaufman unsigned long tid_bitmap; 4669794c64fSLiad Kaufman unsigned long disable_agg_tids = 0; 4679794c64fSLiad Kaufman u8 sta_id; 4689794c64fSLiad Kaufman int tid; 4699794c64fSLiad Kaufman 4709794c64fSLiad Kaufman lockdep_assert_held(&mvm->mutex); 4719794c64fSLiad Kaufman 472bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 473bb49701bSSara Sharon return -EINVAL; 474bb49701bSSara Sharon 4759794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 4769794c64fSLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 4779794c64fSLiad Kaufman 4789794c64fSLiad Kaufman rcu_read_lock(); 4799794c64fSLiad Kaufman 4809794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 4819794c64fSLiad Kaufman 4829794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 4839794c64fSLiad Kaufman rcu_read_unlock(); 4849794c64fSLiad Kaufman return 0; 4859794c64fSLiad Kaufman } 4869794c64fSLiad Kaufman 4879794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 4889794c64fSLiad Kaufman 4899794c64fSLiad Kaufman spin_lock_bh(&mvmsta->lock); 49042db09c1SLiad Kaufman /* Unmap MAC queues and TIDs from this queue */ 4919794c64fSLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 492cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 493cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 494cfbc6c4cSSara Sharon 4959794c64fSLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 4969794c64fSLiad Kaufman disable_agg_tids |= BIT(tid); 4976862fceeSSara Sharon mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 498cfbc6c4cSSara Sharon 499cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 5009794c64fSLiad Kaufman } 5019794c64fSLiad Kaufman 50242db09c1SLiad Kaufman mvmsta->tfd_queue_msk &= ~BIT(queue); /* Don't use this queue anymore */ 5039794c64fSLiad Kaufman spin_unlock_bh(&mvmsta->lock); 5049794c64fSLiad Kaufman 5059794c64fSLiad Kaufman rcu_read_unlock(); 5069794c64fSLiad Kaufman 50706bc6f6eSJohannes Berg /* 50806bc6f6eSJohannes Berg * The TX path may have been using this TXQ_ID from the tid_data, 50906bc6f6eSJohannes Berg * so make sure it's no longer running so that we can safely reuse 51006bc6f6eSJohannes Berg * this TXQ later. We've set all the TIDs to IWL_MVM_INVALID_QUEUE 51106bc6f6eSJohannes Berg * above, but nothing guarantees we've stopped using them. Thus, 51206bc6f6eSJohannes Berg * without this, we could get to iwl_mvm_disable_txq() and remove 51306bc6f6eSJohannes Berg * the queue while still sending frames to it. 51406bc6f6eSJohannes Berg */ 51506bc6f6eSJohannes Berg synchronize_net(); 51606bc6f6eSJohannes Berg 5179794c64fSLiad Kaufman return disable_agg_tids; 5189794c64fSLiad Kaufman } 5199794c64fSLiad Kaufman 52001796ff2SSara Sharon static int iwl_mvm_free_inactive_queue(struct iwl_mvm *mvm, int queue, 521cfbc6c4cSSara Sharon struct ieee80211_sta *old_sta, 522724fe771SJohannes Berg u8 new_sta_id) 52301796ff2SSara Sharon { 52401796ff2SSara Sharon struct iwl_mvm_sta *mvmsta; 525cfbc6c4cSSara Sharon u8 sta_id, tid; 52601796ff2SSara Sharon unsigned long disable_agg_tids = 0; 527724fe771SJohannes Berg bool same_sta; 52801796ff2SSara Sharon int ret; 52901796ff2SSara Sharon 53001796ff2SSara Sharon lockdep_assert_held(&mvm->mutex); 53101796ff2SSara Sharon 532bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 533bb49701bSSara Sharon return -EINVAL; 534bb49701bSSara Sharon 53501796ff2SSara Sharon sta_id = mvm->queue_info[queue].ra_sta_id; 53601796ff2SSara Sharon tid = mvm->queue_info[queue].txq_tid; 53701796ff2SSara Sharon 538724fe771SJohannes Berg same_sta = sta_id == new_sta_id; 539724fe771SJohannes Berg 54001796ff2SSara Sharon mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 541e3df1e4bSSharon Dvir if (WARN_ON(!mvmsta)) 542e3df1e4bSSharon Dvir return -EINVAL; 54301796ff2SSara Sharon 54401796ff2SSara Sharon disable_agg_tids = iwl_mvm_remove_sta_queue_marking(mvm, queue); 54501796ff2SSara Sharon /* Disable the queue */ 54601796ff2SSara Sharon if (disable_agg_tids) 54701796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 54801796ff2SSara Sharon disable_agg_tids, false); 54901796ff2SSara Sharon 550cfbc6c4cSSara Sharon ret = iwl_mvm_disable_txq(mvm, old_sta, queue, tid, 0); 55101796ff2SSara Sharon if (ret) { 55201796ff2SSara Sharon IWL_ERR(mvm, 55301796ff2SSara Sharon "Failed to free inactive queue %d (ret=%d)\n", 55401796ff2SSara Sharon queue, ret); 55501796ff2SSara Sharon 55601796ff2SSara Sharon return ret; 55701796ff2SSara Sharon } 55801796ff2SSara Sharon 55901796ff2SSara Sharon /* If TXQ is allocated to another STA, update removal in FW */ 56001796ff2SSara Sharon if (!same_sta) 56101796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 0, true); 56201796ff2SSara Sharon 56301796ff2SSara Sharon return 0; 56401796ff2SSara Sharon } 56501796ff2SSara Sharon 56642db09c1SLiad Kaufman static int iwl_mvm_get_shared_queue(struct iwl_mvm *mvm, 56742db09c1SLiad Kaufman unsigned long tfd_queue_mask, u8 ac) 56842db09c1SLiad Kaufman { 56942db09c1SLiad Kaufman int queue = 0; 57042db09c1SLiad Kaufman u8 ac_to_queue[IEEE80211_NUM_ACS]; 57142db09c1SLiad Kaufman int i; 57242db09c1SLiad Kaufman 57390d2d94cSJohannes Berg /* 57490d2d94cSJohannes Berg * This protects us against grabbing a queue that's being reconfigured 57590d2d94cSJohannes Berg * by the inactivity checker. 57690d2d94cSJohannes Berg */ 57790d2d94cSJohannes Berg lockdep_assert_held(&mvm->mutex); 57890d2d94cSJohannes Berg 579bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 580bb49701bSSara Sharon return -EINVAL; 58142db09c1SLiad Kaufman 58242db09c1SLiad Kaufman memset(&ac_to_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(ac_to_queue)); 58342db09c1SLiad Kaufman 58442db09c1SLiad Kaufman /* See what ACs the existing queues for this STA have */ 58542db09c1SLiad Kaufman for_each_set_bit(i, &tfd_queue_mask, IWL_MVM_DQA_MAX_DATA_QUEUE) { 58642db09c1SLiad Kaufman /* Only DATA queues can be shared */ 58742db09c1SLiad Kaufman if (i < IWL_MVM_DQA_MIN_DATA_QUEUE && 58842db09c1SLiad Kaufman i != IWL_MVM_DQA_BSS_CLIENT_QUEUE) 58942db09c1SLiad Kaufman continue; 59042db09c1SLiad Kaufman 59142db09c1SLiad Kaufman ac_to_queue[mvm->queue_info[i].mac80211_ac] = i; 59242db09c1SLiad Kaufman } 59342db09c1SLiad Kaufman 59442db09c1SLiad Kaufman /* 59542db09c1SLiad Kaufman * The queue to share is chosen only from DATA queues as follows (in 59642db09c1SLiad Kaufman * descending priority): 59742db09c1SLiad Kaufman * 1. An AC_BE queue 59842db09c1SLiad Kaufman * 2. Same AC queue 59942db09c1SLiad Kaufman * 3. Highest AC queue that is lower than new AC 60042db09c1SLiad Kaufman * 4. Any existing AC (there always is at least 1 DATA queue) 60142db09c1SLiad Kaufman */ 60242db09c1SLiad Kaufman 60342db09c1SLiad Kaufman /* Priority 1: An AC_BE queue */ 60442db09c1SLiad Kaufman if (ac_to_queue[IEEE80211_AC_BE] != IEEE80211_INVAL_HW_QUEUE) 60542db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BE]; 60642db09c1SLiad Kaufman /* Priority 2: Same AC queue */ 60742db09c1SLiad Kaufman else if (ac_to_queue[ac] != IEEE80211_INVAL_HW_QUEUE) 60842db09c1SLiad Kaufman queue = ac_to_queue[ac]; 60942db09c1SLiad Kaufman /* Priority 3a: If new AC is VO and VI exists - use VI */ 61042db09c1SLiad Kaufman else if (ac == IEEE80211_AC_VO && 61142db09c1SLiad Kaufman ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 61242db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 61342db09c1SLiad Kaufman /* Priority 3b: No BE so only AC less than the new one is BK */ 61442db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_BK] != IEEE80211_INVAL_HW_QUEUE) 61542db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BK]; 61642db09c1SLiad Kaufman /* Priority 4a: No BE nor BK - use VI if exists */ 61742db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 61842db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 61942db09c1SLiad Kaufman /* Priority 4b: No BE, BK nor VI - use VO if exists */ 62042db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VO] != IEEE80211_INVAL_HW_QUEUE) 62142db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VO]; 62242db09c1SLiad Kaufman 62342db09c1SLiad Kaufman /* Make sure queue found (or not) is legal */ 6249f9af3d7SLiad Kaufman if (!iwl_mvm_is_dqa_data_queue(mvm, queue) && 6259f9af3d7SLiad Kaufman !iwl_mvm_is_dqa_mgmt_queue(mvm, queue) && 6269f9af3d7SLiad Kaufman (queue != IWL_MVM_DQA_BSS_CLIENT_QUEUE)) { 62742db09c1SLiad Kaufman IWL_ERR(mvm, "No DATA queues available to share\n"); 6289f9af3d7SLiad Kaufman return -ENOSPC; 6299f9af3d7SLiad Kaufman } 6309f9af3d7SLiad Kaufman 63142db09c1SLiad Kaufman return queue; 63242db09c1SLiad Kaufman } 63342db09c1SLiad Kaufman 63458f2cc57SLiad Kaufman /* 6359f9af3d7SLiad Kaufman * If a given queue has a higher AC than the TID stream that is being compared 6369f9af3d7SLiad Kaufman * to, the queue needs to be redirected to the lower AC. This function does that 63758f2cc57SLiad Kaufman * in such a case, otherwise - if no redirection required - it does nothing, 63858f2cc57SLiad Kaufman * unless the %force param is true. 63958f2cc57SLiad Kaufman */ 640cfbc6c4cSSara Sharon static int iwl_mvm_redirect_queue(struct iwl_mvm *mvm, int queue, int tid, 64158f2cc57SLiad Kaufman int ac, int ssn, unsigned int wdg_timeout, 642cfbc6c4cSSara Sharon bool force, struct iwl_mvm_txq *txq) 64358f2cc57SLiad Kaufman { 64458f2cc57SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 64558f2cc57SLiad Kaufman .scd_queue = queue, 646f7c692deSLiad Kaufman .action = SCD_CFG_DISABLE_QUEUE, 64758f2cc57SLiad Kaufman }; 64858f2cc57SLiad Kaufman bool shared_queue; 64958f2cc57SLiad Kaufman int ret; 65058f2cc57SLiad Kaufman 651bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 652bb49701bSSara Sharon return -EINVAL; 653bb49701bSSara Sharon 65458f2cc57SLiad Kaufman /* 65558f2cc57SLiad Kaufman * If the AC is lower than current one - FIFO needs to be redirected to 65658f2cc57SLiad Kaufman * the lowest one of the streams in the queue. Check if this is needed 65758f2cc57SLiad Kaufman * here. 65858f2cc57SLiad Kaufman * Notice that the enum ieee80211_ac_numbers is "flipped", so BK is with 65958f2cc57SLiad Kaufman * value 3 and VO with value 0, so to check if ac X is lower than ac Y 66058f2cc57SLiad Kaufman * we need to check if the numerical value of X is LARGER than of Y. 66158f2cc57SLiad Kaufman */ 66258f2cc57SLiad Kaufman if (ac <= mvm->queue_info[queue].mac80211_ac && !force) { 66358f2cc57SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 66458f2cc57SLiad Kaufman "No redirection needed on TXQ #%d\n", 66558f2cc57SLiad Kaufman queue); 66658f2cc57SLiad Kaufman return 0; 66758f2cc57SLiad Kaufman } 66858f2cc57SLiad Kaufman 66958f2cc57SLiad Kaufman cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 67058f2cc57SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[mvm->queue_info[queue].mac80211_ac]; 671edbe961cSLiad Kaufman cmd.tid = mvm->queue_info[queue].txq_tid; 6721c14089eSJohannes Berg shared_queue = hweight16(mvm->queue_info[queue].tid_bitmap) > 1; 67358f2cc57SLiad Kaufman 6749f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Redirecting TXQ #%d to FIFO #%d\n", 67558f2cc57SLiad Kaufman queue, iwl_mvm_ac_to_tx_fifo[ac]); 67658f2cc57SLiad Kaufman 677cfbc6c4cSSara Sharon /* Stop the queue and wait for it to empty */ 678cfbc6c4cSSara Sharon txq->stopped = true; 679cfbc6c4cSSara Sharon 680a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(queue)); 68158f2cc57SLiad Kaufman if (ret) { 68258f2cc57SLiad Kaufman IWL_ERR(mvm, "Error draining queue %d before reconfig\n", 68358f2cc57SLiad Kaufman queue); 68458f2cc57SLiad Kaufman ret = -EIO; 68558f2cc57SLiad Kaufman goto out; 68658f2cc57SLiad Kaufman } 68758f2cc57SLiad Kaufman 68858f2cc57SLiad Kaufman /* Before redirecting the queue we need to de-activate it */ 68958f2cc57SLiad Kaufman iwl_trans_txq_disable(mvm->trans, queue, false); 69058f2cc57SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 69158f2cc57SLiad Kaufman if (ret) 69258f2cc57SLiad Kaufman IWL_ERR(mvm, "Failed SCD disable TXQ %d (ret=%d)\n", queue, 69358f2cc57SLiad Kaufman ret); 69458f2cc57SLiad Kaufman 69558f2cc57SLiad Kaufman /* Make sure the SCD wrptr is correctly set before reconfiguring */ 696ca3b9c6bSSara Sharon iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, wdg_timeout); 69758f2cc57SLiad Kaufman 698edbe961cSLiad Kaufman /* Update the TID "owner" of the queue */ 699edbe961cSLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 700edbe961cSLiad Kaufman 70158f2cc57SLiad Kaufman /* TODO: Work-around SCD bug when moving back by multiples of 0x40 */ 70258f2cc57SLiad Kaufman 70358f2cc57SLiad Kaufman /* Redirect to lower AC */ 70458f2cc57SLiad Kaufman iwl_mvm_reconfig_scd(mvm, queue, iwl_mvm_ac_to_tx_fifo[ac], 7050ec9257bSSara Sharon cmd.sta_id, tid, IWL_FRAME_LIMIT, ssn); 70658f2cc57SLiad Kaufman 70758f2cc57SLiad Kaufman /* Update AC marking of the queue */ 70858f2cc57SLiad Kaufman mvm->queue_info[queue].mac80211_ac = ac; 70958f2cc57SLiad Kaufman 71058f2cc57SLiad Kaufman /* 71158f2cc57SLiad Kaufman * Mark queue as shared in transport if shared 71258f2cc57SLiad Kaufman * Note this has to be done after queue enablement because enablement 71358f2cc57SLiad Kaufman * can also set this value, and there is no indication there to shared 71458f2cc57SLiad Kaufman * queues 71558f2cc57SLiad Kaufman */ 71658f2cc57SLiad Kaufman if (shared_queue) 71758f2cc57SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 71858f2cc57SLiad Kaufman 71958f2cc57SLiad Kaufman out: 720cfbc6c4cSSara Sharon /* Continue using the queue */ 721cfbc6c4cSSara Sharon txq->stopped = false; 72258f2cc57SLiad Kaufman 72358f2cc57SLiad Kaufman return ret; 72458f2cc57SLiad Kaufman } 72558f2cc57SLiad Kaufman 72699448a8cSJohannes Berg static int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 sta_id, 72799448a8cSJohannes Berg u8 minq, u8 maxq) 72899448a8cSJohannes Berg { 72999448a8cSJohannes Berg int i; 73099448a8cSJohannes Berg 731f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 73299448a8cSJohannes Berg 73399448a8cSJohannes Berg /* This should not be hit with new TX path */ 73499448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 73599448a8cSJohannes Berg return -ENOSPC; 73699448a8cSJohannes Berg 73799448a8cSJohannes Berg /* Start by looking for a free queue */ 73899448a8cSJohannes Berg for (i = minq; i <= maxq; i++) 7391c14089eSJohannes Berg if (mvm->queue_info[i].tid_bitmap == 0 && 74099448a8cSJohannes Berg mvm->queue_info[i].status == IWL_MVM_QUEUE_FREE) 74199448a8cSJohannes Berg return i; 74299448a8cSJohannes Berg 74399448a8cSJohannes Berg return -ENOSPC; 74499448a8cSJohannes Berg } 74599448a8cSJohannes Berg 746cfbc6c4cSSara Sharon static int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm, 74799448a8cSJohannes Berg u8 sta_id, u8 tid, unsigned int timeout) 74899448a8cSJohannes Berg { 74999448a8cSJohannes Berg int queue, size = IWL_DEFAULT_QUEUE_SIZE; 75099448a8cSJohannes Berg 75199448a8cSJohannes Berg if (tid == IWL_MAX_TID_COUNT) { 75299448a8cSJohannes Berg tid = IWL_MGMT_TID; 753ff911dcaSShaul Triebitz size = max_t(u32, IWL_MGMT_QUEUE_SIZE, 754ff911dcaSShaul Triebitz mvm->trans->cfg->min_txq_size); 75599448a8cSJohannes Berg } 75699448a8cSJohannes Berg queue = iwl_trans_txq_alloc(mvm->trans, 75799448a8cSJohannes Berg cpu_to_le16(TX_QUEUE_CFG_ENABLE_QUEUE), 75899448a8cSJohannes Berg sta_id, tid, SCD_QUEUE_CFG, size, timeout); 75999448a8cSJohannes Berg 76099448a8cSJohannes Berg if (queue < 0) { 76199448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 76299448a8cSJohannes Berg "Failed allocating TXQ for sta %d tid %d, ret: %d\n", 76399448a8cSJohannes Berg sta_id, tid, queue); 76499448a8cSJohannes Berg return queue; 76599448a8cSJohannes Berg } 76699448a8cSJohannes Berg 76799448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Enabling TXQ #%d for sta %d tid %d\n", 76899448a8cSJohannes Berg queue, sta_id, tid); 76999448a8cSJohannes Berg 770cfbc6c4cSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, "Enabling TXQ #%d\n", queue); 77199448a8cSJohannes Berg 77299448a8cSJohannes Berg return queue; 77399448a8cSJohannes Berg } 77499448a8cSJohannes Berg 775310181ecSSara Sharon static int iwl_mvm_sta_alloc_queue_tvqm(struct iwl_mvm *mvm, 776310181ecSSara Sharon struct ieee80211_sta *sta, u8 ac, 777310181ecSSara Sharon int tid) 778310181ecSSara Sharon { 779310181ecSSara Sharon struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 780cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 781cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 782310181ecSSara Sharon unsigned int wdg_timeout = 783310181ecSSara Sharon iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 784310181ecSSara Sharon int queue = -1; 785310181ecSSara Sharon 786310181ecSSara Sharon lockdep_assert_held(&mvm->mutex); 787310181ecSSara Sharon 788310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 789310181ecSSara Sharon "Allocating queue for sta %d on tid %d\n", 790310181ecSSara Sharon mvmsta->sta_id, tid); 791cfbc6c4cSSara Sharon queue = iwl_mvm_tvqm_enable_txq(mvm, mvmsta->sta_id, tid, wdg_timeout); 792310181ecSSara Sharon if (queue < 0) 793310181ecSSara Sharon return queue; 794310181ecSSara Sharon 795cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 796cfbc6c4cSSara Sharon mvm->tvqm_info[queue].txq_tid = tid; 797cfbc6c4cSSara Sharon mvm->tvqm_info[queue].sta_id = mvmsta->sta_id; 798cfbc6c4cSSara Sharon 799310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, "Allocated queue is %d\n", queue); 800310181ecSSara Sharon 801310181ecSSara Sharon spin_lock_bh(&mvmsta->lock); 802310181ecSSara Sharon mvmsta->tid_data[tid].txq_id = queue; 803310181ecSSara Sharon spin_unlock_bh(&mvmsta->lock); 804310181ecSSara Sharon 805310181ecSSara Sharon return 0; 806310181ecSSara Sharon } 807310181ecSSara Sharon 808cfbc6c4cSSara Sharon static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, 809cfbc6c4cSSara Sharon struct ieee80211_sta *sta, 810cfbc6c4cSSara Sharon int queue, u8 sta_id, u8 tid) 81199448a8cSJohannes Berg { 81299448a8cSJohannes Berg bool enable_queue = true; 81399448a8cSJohannes Berg 81499448a8cSJohannes Berg /* Make sure this TID isn't already enabled */ 81599448a8cSJohannes Berg if (mvm->queue_info[queue].tid_bitmap & BIT(tid)) { 81699448a8cSJohannes Berg IWL_ERR(mvm, "Trying to enable TXQ %d with existing TID %d\n", 81799448a8cSJohannes Berg queue, tid); 81899448a8cSJohannes Berg return false; 81999448a8cSJohannes Berg } 82099448a8cSJohannes Berg 82199448a8cSJohannes Berg /* Update mappings and refcounts */ 8221c14089eSJohannes Berg if (mvm->queue_info[queue].tid_bitmap) 82399448a8cSJohannes Berg enable_queue = false; 82499448a8cSJohannes Berg 82599448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap |= BIT(tid); 82699448a8cSJohannes Berg mvm->queue_info[queue].ra_sta_id = sta_id; 82799448a8cSJohannes Berg 82899448a8cSJohannes Berg if (enable_queue) { 82999448a8cSJohannes Berg if (tid != IWL_MAX_TID_COUNT) 83099448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = 83199448a8cSJohannes Berg tid_to_mac80211_ac[tid]; 83299448a8cSJohannes Berg else 83399448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = IEEE80211_AC_VO; 83499448a8cSJohannes Berg 83599448a8cSJohannes Berg mvm->queue_info[queue].txq_tid = tid; 83699448a8cSJohannes Berg } 83799448a8cSJohannes Berg 838cfbc6c4cSSara Sharon if (sta) { 839cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 840cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 841cfbc6c4cSSara Sharon 842cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 843cfbc6c4cSSara Sharon } 844cfbc6c4cSSara Sharon 84599448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 846cfbc6c4cSSara Sharon "Enabling TXQ #%d tids=0x%x\n", 847cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 84899448a8cSJohannes Berg 84999448a8cSJohannes Berg return enable_queue; 85099448a8cSJohannes Berg } 85199448a8cSJohannes Berg 852cfbc6c4cSSara Sharon static bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 853cfbc6c4cSSara Sharon int queue, u16 ssn, 85499448a8cSJohannes Berg const struct iwl_trans_txq_scd_cfg *cfg, 85599448a8cSJohannes Berg unsigned int wdg_timeout) 85699448a8cSJohannes Berg { 85799448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 85899448a8cSJohannes Berg .scd_queue = queue, 85999448a8cSJohannes Berg .action = SCD_CFG_ENABLE_QUEUE, 86099448a8cSJohannes Berg .window = cfg->frame_limit, 86199448a8cSJohannes Berg .sta_id = cfg->sta_id, 86299448a8cSJohannes Berg .ssn = cpu_to_le16(ssn), 86399448a8cSJohannes Berg .tx_fifo = cfg->fifo, 86499448a8cSJohannes Berg .aggregate = cfg->aggregate, 86599448a8cSJohannes Berg .tid = cfg->tid, 86699448a8cSJohannes Berg }; 86799448a8cSJohannes Berg bool inc_ssn; 86899448a8cSJohannes Berg 86999448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 87099448a8cSJohannes Berg return false; 87199448a8cSJohannes Berg 87299448a8cSJohannes Berg /* Send the enabling command if we need to */ 873cfbc6c4cSSara Sharon if (!iwl_mvm_update_txq_mapping(mvm, sta, queue, cfg->sta_id, cfg->tid)) 87499448a8cSJohannes Berg return false; 87599448a8cSJohannes Berg 87699448a8cSJohannes Berg inc_ssn = iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, 87799448a8cSJohannes Berg NULL, wdg_timeout); 87899448a8cSJohannes Berg if (inc_ssn) 87999448a8cSJohannes Berg le16_add_cpu(&cmd.ssn, 1); 88099448a8cSJohannes Berg 88199448a8cSJohannes Berg WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd), 88299448a8cSJohannes Berg "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo); 88399448a8cSJohannes Berg 88499448a8cSJohannes Berg return inc_ssn; 88599448a8cSJohannes Berg } 88699448a8cSJohannes Berg 887b3a87f11SJohannes Berg static void iwl_mvm_change_queue_tid(struct iwl_mvm *mvm, int queue) 88819aefa45SLiad Kaufman { 88919aefa45SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 89019aefa45SLiad Kaufman .scd_queue = queue, 89119aefa45SLiad Kaufman .action = SCD_CFG_UPDATE_QUEUE_TID, 89219aefa45SLiad Kaufman }; 89319aefa45SLiad Kaufman int tid; 89419aefa45SLiad Kaufman unsigned long tid_bitmap; 89519aefa45SLiad Kaufman int ret; 89619aefa45SLiad Kaufman 89719aefa45SLiad Kaufman lockdep_assert_held(&mvm->mutex); 89819aefa45SLiad Kaufman 899bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 900bb49701bSSara Sharon return; 901bb49701bSSara Sharon 90219aefa45SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 90319aefa45SLiad Kaufman 90419aefa45SLiad Kaufman if (WARN(!tid_bitmap, "TXQ %d has no tids assigned to it\n", queue)) 90519aefa45SLiad Kaufman return; 90619aefa45SLiad Kaufman 90719aefa45SLiad Kaufman /* Find any TID for queue */ 90819aefa45SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 90919aefa45SLiad Kaufman cmd.tid = tid; 91019aefa45SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 91119aefa45SLiad Kaufman 91219aefa45SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 913341ca402SLiad Kaufman if (ret) { 91419aefa45SLiad Kaufman IWL_ERR(mvm, "Failed to update owner of TXQ %d (ret=%d)\n", 91519aefa45SLiad Kaufman queue, ret); 916341ca402SLiad Kaufman return; 917341ca402SLiad Kaufman } 918341ca402SLiad Kaufman 919341ca402SLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 92019aefa45SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Changed TXQ %d ownership to tid %d\n", 92119aefa45SLiad Kaufman queue, tid); 92219aefa45SLiad Kaufman } 92319aefa45SLiad Kaufman 9249f9af3d7SLiad Kaufman static void iwl_mvm_unshare_queue(struct iwl_mvm *mvm, int queue) 9259f9af3d7SLiad Kaufman { 9269f9af3d7SLiad Kaufman struct ieee80211_sta *sta; 9279f9af3d7SLiad Kaufman struct iwl_mvm_sta *mvmsta; 928806911daSSharon Dvir u8 sta_id; 9299f9af3d7SLiad Kaufman int tid = -1; 9309f9af3d7SLiad Kaufman unsigned long tid_bitmap; 9319f9af3d7SLiad Kaufman unsigned int wdg_timeout; 9329f9af3d7SLiad Kaufman int ssn; 9339f9af3d7SLiad Kaufman int ret = true; 9349f9af3d7SLiad Kaufman 935bb49701bSSara Sharon /* queue sharing is disabled on new TX path */ 936bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 937bb49701bSSara Sharon return; 938bb49701bSSara Sharon 9399f9af3d7SLiad Kaufman lockdep_assert_held(&mvm->mutex); 9409f9af3d7SLiad Kaufman 9419f9af3d7SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 9429f9af3d7SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 9439f9af3d7SLiad Kaufman 9449f9af3d7SLiad Kaufman /* Find TID for queue, and make sure it is the only one on the queue */ 9459f9af3d7SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 9469f9af3d7SLiad Kaufman if (tid_bitmap != BIT(tid)) { 9479f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to unshare q %d, active tids=0x%lx\n", 9489f9af3d7SLiad Kaufman queue, tid_bitmap); 9499f9af3d7SLiad Kaufman return; 9509f9af3d7SLiad Kaufman } 9519f9af3d7SLiad Kaufman 9529f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Unsharing TXQ %d, keeping tid %d\n", queue, 9539f9af3d7SLiad Kaufman tid); 9549f9af3d7SLiad Kaufman 9559f9af3d7SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 9569f9af3d7SLiad Kaufman lockdep_is_held(&mvm->mutex)); 9579f9af3d7SLiad Kaufman 9589f9af3d7SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 9599f9af3d7SLiad Kaufman return; 9609f9af3d7SLiad Kaufman 9619f9af3d7SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 9629f9af3d7SLiad Kaufman wdg_timeout = iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 9639f9af3d7SLiad Kaufman 9649f9af3d7SLiad Kaufman ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 9659f9af3d7SLiad Kaufman 966cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, 9679f9af3d7SLiad Kaufman tid_to_mac80211_ac[tid], ssn, 968cfbc6c4cSSara Sharon wdg_timeout, true, 969cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 9709f9af3d7SLiad Kaufman if (ret) { 9719f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to redirect TXQ %d\n", queue); 9729f9af3d7SLiad Kaufman return; 9739f9af3d7SLiad Kaufman } 9749f9af3d7SLiad Kaufman 9759f9af3d7SLiad Kaufman /* If aggs should be turned back on - do it */ 9769f9af3d7SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) { 9779cd70e80SEmmanuel Grumbach struct iwl_mvm_add_sta_cmd cmd = {0}; 9789f9af3d7SLiad Kaufman 9799f9af3d7SLiad Kaufman mvmsta->tid_disable_agg &= ~BIT(tid); 9809f9af3d7SLiad Kaufman 9819f9af3d7SLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 9829f9af3d7SLiad Kaufman cmd.sta_id = mvmsta->sta_id; 9839f9af3d7SLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 9849f9af3d7SLiad Kaufman cmd.modify_mask = STA_MODIFY_TID_DISABLE_TX; 9859f9af3d7SLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 9869f9af3d7SLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 9879f9af3d7SLiad Kaufman 9889f9af3d7SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 9899f9af3d7SLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), &cmd); 9909f9af3d7SLiad Kaufman if (!ret) { 9919f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 9929f9af3d7SLiad Kaufman "TXQ #%d is now aggregated again\n", 9939f9af3d7SLiad Kaufman queue); 9949f9af3d7SLiad Kaufman 9959f9af3d7SLiad Kaufman /* Mark queue intenally as aggregating again */ 9969f9af3d7SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, false); 9979f9af3d7SLiad Kaufman } 9989f9af3d7SLiad Kaufman } 9999f9af3d7SLiad Kaufman 10009f9af3d7SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 10019f9af3d7SLiad Kaufman } 10029f9af3d7SLiad Kaufman 100399448a8cSJohannes Berg /* 100499448a8cSJohannes Berg * Remove inactive TIDs of a given queue. 100599448a8cSJohannes Berg * If all queue TIDs are inactive - mark the queue as inactive 100699448a8cSJohannes Berg * If only some the queue TIDs are inactive - unmap them from the queue 1007724fe771SJohannes Berg * 1008724fe771SJohannes Berg * Returns %true if all TIDs were removed and the queue could be reused. 100999448a8cSJohannes Berg */ 1010724fe771SJohannes Berg static bool iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm, 101199448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta, int queue, 101290d2d94cSJohannes Berg unsigned long tid_bitmap, 1013b3a87f11SJohannes Berg unsigned long *unshare_queues, 1014b3a87f11SJohannes Berg unsigned long *changetid_queues) 101599448a8cSJohannes Berg { 101699448a8cSJohannes Berg int tid; 101799448a8cSJohannes Berg 101899448a8cSJohannes Berg lockdep_assert_held(&mvmsta->lock); 1019f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 102099448a8cSJohannes Berg 102199448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1022724fe771SJohannes Berg return false; 102399448a8cSJohannes Berg 102499448a8cSJohannes Berg /* Go over all non-active TIDs, incl. IWL_MAX_TID_COUNT (for mgmt) */ 102599448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 102699448a8cSJohannes Berg /* If some TFDs are still queued - don't mark TID as inactive */ 102799448a8cSJohannes Berg if (iwl_mvm_tid_queued(mvm, &mvmsta->tid_data[tid])) 102899448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 102999448a8cSJohannes Berg 103099448a8cSJohannes Berg /* Don't mark as inactive any TID that has an active BA */ 103199448a8cSJohannes Berg if (mvmsta->tid_data[tid].state != IWL_AGG_OFF) 103299448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 103399448a8cSJohannes Berg } 103499448a8cSJohannes Berg 1035724fe771SJohannes Berg /* If all TIDs in the queue are inactive - return it can be reused */ 103699448a8cSJohannes Berg if (tid_bitmap == mvm->queue_info[queue].tid_bitmap) { 1037724fe771SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Queue %d is inactive\n", queue); 1038724fe771SJohannes Berg return true; 103999448a8cSJohannes Berg } 104099448a8cSJohannes Berg 104199448a8cSJohannes Berg /* 104299448a8cSJohannes Berg * If we are here, this is a shared queue and not all TIDs timed-out. 104399448a8cSJohannes Berg * Remove the ones that did. 104499448a8cSJohannes Berg */ 104599448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1046b3a87f11SJohannes Berg u16 tid_bitmap; 104799448a8cSJohannes Berg 104899448a8cSJohannes Berg mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 104999448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 105099448a8cSJohannes Berg 1051b3a87f11SJohannes Berg tid_bitmap = mvm->queue_info[queue].tid_bitmap; 1052b3a87f11SJohannes Berg 1053b3a87f11SJohannes Berg /* 1054b3a87f11SJohannes Berg * We need to take into account a situation in which a TXQ was 1055b3a87f11SJohannes Berg * allocated to TID x, and then turned shared by adding TIDs y 1056b3a87f11SJohannes Berg * and z. If TID x becomes inactive and is removed from the TXQ, 1057b3a87f11SJohannes Berg * ownership must be given to one of the remaining TIDs. 1058b3a87f11SJohannes Berg * This is mainly because if TID x continues - a new queue can't 1059b3a87f11SJohannes Berg * be allocated for it as long as it is an owner of another TXQ. 1060b3a87f11SJohannes Berg * 1061b3a87f11SJohannes Berg * Mark this queue in the right bitmap, we'll send the command 1062b3a87f11SJohannes Berg * to the firmware later. 1063b3a87f11SJohannes Berg */ 1064b3a87f11SJohannes Berg if (!(tid_bitmap & BIT(mvm->queue_info[queue].txq_tid))) 1065b3a87f11SJohannes Berg set_bit(queue, changetid_queues); 1066b3a87f11SJohannes Berg 106799448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 106899448a8cSJohannes Berg "Removing inactive TID %d from shared Q:%d\n", 106999448a8cSJohannes Berg tid, queue); 107099448a8cSJohannes Berg } 107199448a8cSJohannes Berg 107299448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 107399448a8cSJohannes Berg "TXQ #%d left with tid bitmap 0x%x\n", queue, 107499448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap); 107599448a8cSJohannes Berg 107699448a8cSJohannes Berg /* 107799448a8cSJohannes Berg * There may be different TIDs with the same mac queues, so make 107899448a8cSJohannes Berg * sure all TIDs have existing corresponding mac queues enabled 107999448a8cSJohannes Berg */ 108099448a8cSJohannes Berg tid_bitmap = mvm->queue_info[queue].tid_bitmap; 108199448a8cSJohannes Berg 108299448a8cSJohannes Berg /* If the queue is marked as shared - "unshare" it */ 10831c14089eSJohannes Berg if (hweight16(mvm->queue_info[queue].tid_bitmap) == 1 && 108499448a8cSJohannes Berg mvm->queue_info[queue].status == IWL_MVM_QUEUE_SHARED) { 108599448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Marking Q:%d for reconfig\n", 108699448a8cSJohannes Berg queue); 108790d2d94cSJohannes Berg set_bit(queue, unshare_queues); 108899448a8cSJohannes Berg } 1089724fe771SJohannes Berg 1090724fe771SJohannes Berg return false; 109199448a8cSJohannes Berg } 109299448a8cSJohannes Berg 1093724fe771SJohannes Berg /* 1094724fe771SJohannes Berg * Check for inactivity - this includes checking if any queue 1095724fe771SJohannes Berg * can be unshared and finding one (and only one) that can be 1096724fe771SJohannes Berg * reused. 1097724fe771SJohannes Berg * This function is also invoked as a sort of clean-up task, 1098724fe771SJohannes Berg * in which case @alloc_for_sta is IWL_MVM_INVALID_STA. 1099724fe771SJohannes Berg * 1100724fe771SJohannes Berg * Returns the queue number, or -ENOSPC. 1101724fe771SJohannes Berg */ 1102724fe771SJohannes Berg static int iwl_mvm_inactivity_check(struct iwl_mvm *mvm, u8 alloc_for_sta) 110399448a8cSJohannes Berg { 110499448a8cSJohannes Berg unsigned long now = jiffies; 110590d2d94cSJohannes Berg unsigned long unshare_queues = 0; 1106b3a87f11SJohannes Berg unsigned long changetid_queues = 0; 1107724fe771SJohannes Berg int i, ret, free_queue = -ENOSPC; 1108cfbc6c4cSSara Sharon struct ieee80211_sta *queue_owner = NULL; 110999448a8cSJohannes Berg 1110df2a2245SJohannes Berg lockdep_assert_held(&mvm->mutex); 1111df2a2245SJohannes Berg 111299448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1113724fe771SJohannes Berg return -ENOSPC; 111499448a8cSJohannes Berg 111599448a8cSJohannes Berg rcu_read_lock(); 111699448a8cSJohannes Berg 1117459ab045SJohannes Berg /* we skip the CMD queue below by starting at 1 */ 1118459ab045SJohannes Berg BUILD_BUG_ON(IWL_MVM_DQA_CMD_QUEUE != 0); 1119459ab045SJohannes Berg 1120459ab045SJohannes Berg for (i = 1; i < IWL_MAX_HW_QUEUES; i++) { 112199448a8cSJohannes Berg struct ieee80211_sta *sta; 112299448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta; 112399448a8cSJohannes Berg u8 sta_id; 112499448a8cSJohannes Berg int tid; 112599448a8cSJohannes Berg unsigned long inactive_tid_bitmap = 0; 112699448a8cSJohannes Berg unsigned long queue_tid_bitmap; 112799448a8cSJohannes Berg 112899448a8cSJohannes Berg queue_tid_bitmap = mvm->queue_info[i].tid_bitmap; 1129459ab045SJohannes Berg if (!queue_tid_bitmap) 1130459ab045SJohannes Berg continue; 113199448a8cSJohannes Berg 113299448a8cSJohannes Berg /* If TXQ isn't in active use anyway - nothing to do here... */ 113399448a8cSJohannes Berg if (mvm->queue_info[i].status != IWL_MVM_QUEUE_READY && 1134459ab045SJohannes Berg mvm->queue_info[i].status != IWL_MVM_QUEUE_SHARED) 113599448a8cSJohannes Berg continue; 113699448a8cSJohannes Berg 113799448a8cSJohannes Berg /* Check to see if there are inactive TIDs on this queue */ 113899448a8cSJohannes Berg for_each_set_bit(tid, &queue_tid_bitmap, 113999448a8cSJohannes Berg IWL_MAX_TID_COUNT + 1) { 114099448a8cSJohannes Berg if (time_after(mvm->queue_info[i].last_frame_time[tid] + 114199448a8cSJohannes Berg IWL_MVM_DQA_QUEUE_TIMEOUT, now)) 114299448a8cSJohannes Berg continue; 114399448a8cSJohannes Berg 114499448a8cSJohannes Berg inactive_tid_bitmap |= BIT(tid); 114599448a8cSJohannes Berg } 114699448a8cSJohannes Berg 114799448a8cSJohannes Berg /* If all TIDs are active - finish check on this queue */ 114899448a8cSJohannes Berg if (!inactive_tid_bitmap) 114999448a8cSJohannes Berg continue; 115099448a8cSJohannes Berg 115199448a8cSJohannes Berg /* 115299448a8cSJohannes Berg * If we are here - the queue hadn't been served recently and is 115399448a8cSJohannes Berg * in use 115499448a8cSJohannes Berg */ 115599448a8cSJohannes Berg 115699448a8cSJohannes Berg sta_id = mvm->queue_info[i].ra_sta_id; 115799448a8cSJohannes Berg sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 115899448a8cSJohannes Berg 115999448a8cSJohannes Berg /* 116099448a8cSJohannes Berg * If the STA doesn't exist anymore, it isn't an error. It could 116199448a8cSJohannes Berg * be that it was removed since getting the queues, and in this 116299448a8cSJohannes Berg * case it should've inactivated its queues anyway. 116399448a8cSJohannes Berg */ 116499448a8cSJohannes Berg if (IS_ERR_OR_NULL(sta)) 116599448a8cSJohannes Berg continue; 116699448a8cSJohannes Berg 116799448a8cSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 116899448a8cSJohannes Berg 1169f3f240f9SJohannes Berg spin_lock_bh(&mvmsta->lock); 1170724fe771SJohannes Berg ret = iwl_mvm_remove_inactive_tids(mvm, mvmsta, i, 117190d2d94cSJohannes Berg inactive_tid_bitmap, 1172b3a87f11SJohannes Berg &unshare_queues, 1173b3a87f11SJohannes Berg &changetid_queues); 1174cfbc6c4cSSara Sharon if (ret >= 0 && free_queue < 0) { 1175cfbc6c4cSSara Sharon queue_owner = sta; 1176724fe771SJohannes Berg free_queue = ret; 1177cfbc6c4cSSara Sharon } 1178459ab045SJohannes Berg /* only unlock sta lock - we still need the queue info lock */ 1179f3f240f9SJohannes Berg spin_unlock_bh(&mvmsta->lock); 118099448a8cSJohannes Berg } 118199448a8cSJohannes Berg 1182df2a2245SJohannes Berg 1183df2a2245SJohannes Berg /* Reconfigure queues requiring reconfiguation */ 118490d2d94cSJohannes Berg for_each_set_bit(i, &unshare_queues, IWL_MAX_HW_QUEUES) 118590d2d94cSJohannes Berg iwl_mvm_unshare_queue(mvm, i); 1186b3a87f11SJohannes Berg for_each_set_bit(i, &changetid_queues, IWL_MAX_HW_QUEUES) 1187b3a87f11SJohannes Berg iwl_mvm_change_queue_tid(mvm, i); 1188724fe771SJohannes Berg 1189724fe771SJohannes Berg if (free_queue >= 0 && alloc_for_sta != IWL_MVM_INVALID_STA) { 1190cfbc6c4cSSara Sharon ret = iwl_mvm_free_inactive_queue(mvm, free_queue, queue_owner, 1191724fe771SJohannes Berg alloc_for_sta); 1192cfbc6c4cSSara Sharon if (ret) { 1193cfbc6c4cSSara Sharon rcu_read_unlock(); 1194724fe771SJohannes Berg return ret; 1195724fe771SJohannes Berg } 1196cfbc6c4cSSara Sharon } 1197cfbc6c4cSSara Sharon 1198cfbc6c4cSSara Sharon rcu_read_unlock(); 1199724fe771SJohannes Berg 1200724fe771SJohannes Berg return free_queue; 120199448a8cSJohannes Berg } 120299448a8cSJohannes Berg 1203c20e08b0SJohannes Berg static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm, 1204cfbc6c4cSSara Sharon struct ieee80211_sta *sta, u8 ac, int tid) 1205c20e08b0SJohannes Berg { 1206c20e08b0SJohannes Berg struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1207c20e08b0SJohannes Berg struct iwl_trans_txq_scd_cfg cfg = { 1208c20e08b0SJohannes Berg .fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac), 1209c20e08b0SJohannes Berg .sta_id = mvmsta->sta_id, 1210c20e08b0SJohannes Berg .tid = tid, 1211c20e08b0SJohannes Berg .frame_limit = IWL_FRAME_LIMIT, 1212c20e08b0SJohannes Berg }; 1213c20e08b0SJohannes Berg unsigned int wdg_timeout = 1214c20e08b0SJohannes Berg iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 1215c20e08b0SJohannes Berg int queue = -1; 1216c20e08b0SJohannes Berg unsigned long disable_agg_tids = 0; 1217c20e08b0SJohannes Berg enum iwl_mvm_agg_state queue_state; 1218c20e08b0SJohannes Berg bool shared_queue = false, inc_ssn; 1219c20e08b0SJohannes Berg int ssn; 1220c20e08b0SJohannes Berg unsigned long tfd_queue_mask; 1221c20e08b0SJohannes Berg int ret; 1222c20e08b0SJohannes Berg 1223c20e08b0SJohannes Berg lockdep_assert_held(&mvm->mutex); 1224c20e08b0SJohannes Berg 1225c20e08b0SJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1226c20e08b0SJohannes Berg return iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 1227c20e08b0SJohannes Berg 1228c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1229c20e08b0SJohannes Berg tfd_queue_mask = mvmsta->tfd_queue_msk; 123035739348SSara Sharon ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 1231c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1232c20e08b0SJohannes Berg 1233cfbc6c4cSSara Sharon if (tid == IWL_MAX_TID_COUNT) { 1234c20e08b0SJohannes Berg queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 1235c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_MGMT_QUEUE, 1236c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_MGMT_QUEUE); 1237c20e08b0SJohannes Berg if (queue >= IWL_MVM_DQA_MIN_MGMT_QUEUE) 1238c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Found free MGMT queue #%d\n", 1239c20e08b0SJohannes Berg queue); 1240c20e08b0SJohannes Berg 1241c20e08b0SJohannes Berg /* If no such queue is found, we'll use a DATA queue instead */ 1242c20e08b0SJohannes Berg } 1243c20e08b0SJohannes Berg 1244c20e08b0SJohannes Berg if ((queue < 0 && mvmsta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) && 1245c20e08b0SJohannes Berg (mvm->queue_info[mvmsta->reserved_queue].status == 1246724fe771SJohannes Berg IWL_MVM_QUEUE_RESERVED)) { 1247c20e08b0SJohannes Berg queue = mvmsta->reserved_queue; 1248c20e08b0SJohannes Berg mvm->queue_info[queue].reserved = true; 1249c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Using reserved queue #%d\n", queue); 1250c20e08b0SJohannes Berg } 1251c20e08b0SJohannes Berg 1252c20e08b0SJohannes Berg if (queue < 0) 1253c20e08b0SJohannes Berg queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 1254c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 1255c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 1256724fe771SJohannes Berg if (queue < 0) { 1257724fe771SJohannes Berg /* try harder - perhaps kill an inactive queue */ 1258724fe771SJohannes Berg queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id); 1259c20e08b0SJohannes Berg } 1260c20e08b0SJohannes Berg 1261c20e08b0SJohannes Berg /* No free queue - we'll have to share */ 1262c20e08b0SJohannes Berg if (queue <= 0) { 1263c20e08b0SJohannes Berg queue = iwl_mvm_get_shared_queue(mvm, tfd_queue_mask, ac); 1264c20e08b0SJohannes Berg if (queue > 0) { 1265c20e08b0SJohannes Berg shared_queue = true; 1266c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_SHARED; 1267c20e08b0SJohannes Berg } 1268c20e08b0SJohannes Berg } 1269c20e08b0SJohannes Berg 1270c20e08b0SJohannes Berg /* 1271c20e08b0SJohannes Berg * Mark TXQ as ready, even though it hasn't been fully configured yet, 1272c20e08b0SJohannes Berg * to make sure no one else takes it. 1273c20e08b0SJohannes Berg * This will allow avoiding re-acquiring the lock at the end of the 1274c20e08b0SJohannes Berg * configuration. On error we'll mark it back as free. 1275c20e08b0SJohannes Berg */ 1276c20e08b0SJohannes Berg if (queue > 0 && !shared_queue) 1277c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 1278c20e08b0SJohannes Berg 1279c20e08b0SJohannes Berg /* This shouldn't happen - out of queues */ 1280c20e08b0SJohannes Berg if (WARN_ON(queue <= 0)) { 1281c20e08b0SJohannes Berg IWL_ERR(mvm, "No available queues for tid %d on sta_id %d\n", 1282c20e08b0SJohannes Berg tid, cfg.sta_id); 1283c20e08b0SJohannes Berg return queue; 1284c20e08b0SJohannes Berg } 1285c20e08b0SJohannes Berg 1286c20e08b0SJohannes Berg /* 1287c20e08b0SJohannes Berg * Actual en/disablement of aggregations is through the ADD_STA HCMD, 1288c20e08b0SJohannes Berg * but for configuring the SCD to send A-MPDUs we need to mark the queue 1289c20e08b0SJohannes Berg * as aggregatable. 1290c20e08b0SJohannes Berg * Mark all DATA queues as allowing to be aggregated at some point 1291c20e08b0SJohannes Berg */ 1292c20e08b0SJohannes Berg cfg.aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1293c20e08b0SJohannes Berg queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE); 1294c20e08b0SJohannes Berg 1295c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 1296c20e08b0SJohannes Berg "Allocating %squeue #%d to sta %d on tid %d\n", 1297c20e08b0SJohannes Berg shared_queue ? "shared " : "", queue, 1298c20e08b0SJohannes Berg mvmsta->sta_id, tid); 1299c20e08b0SJohannes Berg 1300c20e08b0SJohannes Berg if (shared_queue) { 1301c20e08b0SJohannes Berg /* Disable any open aggs on this queue */ 1302c20e08b0SJohannes Berg disable_agg_tids = iwl_mvm_get_queue_agg_tids(mvm, queue); 1303c20e08b0SJohannes Berg 1304c20e08b0SJohannes Berg if (disable_agg_tids) { 1305c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Disabling aggs on queue %d\n", 1306c20e08b0SJohannes Berg queue); 1307c20e08b0SJohannes Berg iwl_mvm_invalidate_sta_queue(mvm, queue, 1308c20e08b0SJohannes Berg disable_agg_tids, false); 1309c20e08b0SJohannes Berg } 1310c20e08b0SJohannes Berg } 1311c20e08b0SJohannes Berg 1312cfbc6c4cSSara Sharon inc_ssn = iwl_mvm_enable_txq(mvm, sta, queue, ssn, &cfg, wdg_timeout); 1313c20e08b0SJohannes Berg 1314c20e08b0SJohannes Berg /* 1315c20e08b0SJohannes Berg * Mark queue as shared in transport if shared 1316c20e08b0SJohannes Berg * Note this has to be done after queue enablement because enablement 1317c20e08b0SJohannes Berg * can also set this value, and there is no indication there to shared 1318c20e08b0SJohannes Berg * queues 1319c20e08b0SJohannes Berg */ 1320c20e08b0SJohannes Berg if (shared_queue) 1321c20e08b0SJohannes Berg iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 1322c20e08b0SJohannes Berg 1323c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1324c20e08b0SJohannes Berg /* 1325c20e08b0SJohannes Berg * This looks racy, but it is not. We have only one packet for 1326c20e08b0SJohannes Berg * this ra/tid in our Tx path since we stop the Qdisc when we 1327c20e08b0SJohannes Berg * need to allocate a new TFD queue. 1328c20e08b0SJohannes Berg */ 132935739348SSara Sharon if (inc_ssn) { 1330c20e08b0SJohannes Berg mvmsta->tid_data[tid].seq_number += 0x10; 133135739348SSara Sharon ssn = (ssn + 1) & IEEE80211_SCTL_SEQ; 133235739348SSara Sharon } 1333c20e08b0SJohannes Berg mvmsta->tid_data[tid].txq_id = queue; 1334c20e08b0SJohannes Berg mvmsta->tfd_queue_msk |= BIT(queue); 1335c20e08b0SJohannes Berg queue_state = mvmsta->tid_data[tid].state; 1336c20e08b0SJohannes Berg 1337c20e08b0SJohannes Berg if (mvmsta->reserved_queue == queue) 1338c20e08b0SJohannes Berg mvmsta->reserved_queue = IEEE80211_INVAL_HW_QUEUE; 1339c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1340c20e08b0SJohannes Berg 1341c20e08b0SJohannes Berg if (!shared_queue) { 1342c20e08b0SJohannes Berg ret = iwl_mvm_sta_send_to_fw(mvm, sta, true, STA_MODIFY_QUEUES); 1343c20e08b0SJohannes Berg if (ret) 1344c20e08b0SJohannes Berg goto out_err; 1345c20e08b0SJohannes Berg 1346c20e08b0SJohannes Berg /* If we need to re-enable aggregations... */ 1347c20e08b0SJohannes Berg if (queue_state == IWL_AGG_ON) { 1348c20e08b0SJohannes Berg ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 1349c20e08b0SJohannes Berg if (ret) 1350c20e08b0SJohannes Berg goto out_err; 1351c20e08b0SJohannes Berg } 1352c20e08b0SJohannes Berg } else { 1353c20e08b0SJohannes Berg /* Redirect queue, if needed */ 1354cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, ac, ssn, 1355cfbc6c4cSSara Sharon wdg_timeout, false, 1356cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 1357c20e08b0SJohannes Berg if (ret) 1358c20e08b0SJohannes Berg goto out_err; 1359c20e08b0SJohannes Berg } 1360c20e08b0SJohannes Berg 1361c20e08b0SJohannes Berg return 0; 1362c20e08b0SJohannes Berg 1363c20e08b0SJohannes Berg out_err: 1364cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, sta, queue, tid, 0); 1365c20e08b0SJohannes Berg 1366c20e08b0SJohannes Berg return ret; 1367c20e08b0SJohannes Berg } 1368c20e08b0SJohannes Berg 136924afba76SLiad Kaufman static inline u8 iwl_mvm_tid_to_ac_queue(int tid) 137024afba76SLiad Kaufman { 137124afba76SLiad Kaufman if (tid == IWL_MAX_TID_COUNT) 137224afba76SLiad Kaufman return IEEE80211_AC_VO; /* MGMT */ 137324afba76SLiad Kaufman 137424afba76SLiad Kaufman return tid_to_mac80211_ac[tid]; 137524afba76SLiad Kaufman } 137624afba76SLiad Kaufman 137724afba76SLiad Kaufman void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk) 137824afba76SLiad Kaufman { 137924afba76SLiad Kaufman struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, 138024afba76SLiad Kaufman add_stream_wk); 138124afba76SLiad Kaufman 138224afba76SLiad Kaufman mutex_lock(&mvm->mutex); 138324afba76SLiad Kaufman 1384724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 13859f9af3d7SLiad Kaufman 1386cfbc6c4cSSara Sharon while (!list_empty(&mvm->add_stream_txqs)) { 1387cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq; 1388cfbc6c4cSSara Sharon struct ieee80211_txq *txq; 1389cfbc6c4cSSara Sharon u8 tid; 139024afba76SLiad Kaufman 1391cfbc6c4cSSara Sharon mvmtxq = list_first_entry(&mvm->add_stream_txqs, 1392cfbc6c4cSSara Sharon struct iwl_mvm_txq, list); 139324afba76SLiad Kaufman 1394cfbc6c4cSSara Sharon txq = container_of((void *)mvmtxq, struct ieee80211_txq, 1395cfbc6c4cSSara Sharon drv_priv); 1396cfbc6c4cSSara Sharon tid = txq->tid; 1397cfbc6c4cSSara Sharon if (tid == IEEE80211_NUM_TIDS) 1398cfbc6c4cSSara Sharon tid = IWL_MAX_TID_COUNT; 1399cfbc6c4cSSara Sharon 1400cfbc6c4cSSara Sharon iwl_mvm_sta_alloc_queue(mvm, txq->sta, txq->ac, tid); 1401cfbc6c4cSSara Sharon list_del_init(&mvmtxq->list); 1402cfbc6c4cSSara Sharon iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 140324afba76SLiad Kaufman } 140424afba76SLiad Kaufman 140524afba76SLiad Kaufman mutex_unlock(&mvm->mutex); 140624afba76SLiad Kaufman } 140724afba76SLiad Kaufman 140824afba76SLiad Kaufman static int iwl_mvm_reserve_sta_stream(struct iwl_mvm *mvm, 1409d5216a28SLiad Kaufman struct ieee80211_sta *sta, 1410d5216a28SLiad Kaufman enum nl80211_iftype vif_type) 141124afba76SLiad Kaufman { 141224afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 141324afba76SLiad Kaufman int queue; 141424afba76SLiad Kaufman 1415396952eeSSara Sharon /* queue reserving is disabled on new TX path */ 1416396952eeSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1417396952eeSSara Sharon return 0; 1418396952eeSSara Sharon 1419724fe771SJohannes Berg /* run the general cleanup/unsharing of queues */ 1420724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 14219794c64fSLiad Kaufman 142224afba76SLiad Kaufman /* Make sure we have free resources for this STA */ 1423d5216a28SLiad Kaufman if (vif_type == NL80211_IFTYPE_STATION && !sta->tdls && 14241c14089eSJohannes Berg !mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].tid_bitmap && 1425cf961e16SLiad Kaufman (mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].status == 1426cf961e16SLiad Kaufman IWL_MVM_QUEUE_FREE)) 1427d5216a28SLiad Kaufman queue = IWL_MVM_DQA_BSS_CLIENT_QUEUE; 1428d5216a28SLiad Kaufman else 14299794c64fSLiad Kaufman queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 14309794c64fSLiad Kaufman IWL_MVM_DQA_MIN_DATA_QUEUE, 143124afba76SLiad Kaufman IWL_MVM_DQA_MAX_DATA_QUEUE); 143224afba76SLiad Kaufman if (queue < 0) { 1433724fe771SJohannes Berg /* try again - this time kick out a queue if needed */ 1434724fe771SJohannes Berg queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id); 1435724fe771SJohannes Berg if (queue < 0) { 143624afba76SLiad Kaufman IWL_ERR(mvm, "No available queues for new station\n"); 143724afba76SLiad Kaufman return -ENOSPC; 1438724fe771SJohannes Berg } 143924afba76SLiad Kaufman } 1440cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_RESERVED; 144124afba76SLiad Kaufman 144224afba76SLiad Kaufman mvmsta->reserved_queue = queue; 144324afba76SLiad Kaufman 144424afba76SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Reserving data queue #%d for sta_id %d\n", 144524afba76SLiad Kaufman queue, mvmsta->sta_id); 144624afba76SLiad Kaufman 144724afba76SLiad Kaufman return 0; 144824afba76SLiad Kaufman } 144924afba76SLiad Kaufman 14508d98ae6eSLiad Kaufman /* 14518d98ae6eSLiad Kaufman * In DQA mode, after a HW restart the queues should be allocated as before, in 14528d98ae6eSLiad Kaufman * order to avoid race conditions when there are shared queues. This function 14538d98ae6eSLiad Kaufman * does the re-mapping and queue allocation. 14548d98ae6eSLiad Kaufman * 14558d98ae6eSLiad Kaufman * Note that re-enabling aggregations isn't done in this function. 14568d98ae6eSLiad Kaufman */ 14578d98ae6eSLiad Kaufman static void iwl_mvm_realloc_queues_after_restart(struct iwl_mvm *mvm, 1458cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 14598d98ae6eSLiad Kaufman { 1460cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1461cfbc6c4cSSara Sharon unsigned int wdg = 14628d98ae6eSLiad Kaufman iwl_mvm_get_wd_timeout(mvm, mvm_sta->vif, false, false); 14638d98ae6eSLiad Kaufman int i; 14648d98ae6eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 14658d98ae6eSLiad Kaufman .sta_id = mvm_sta->sta_id, 14668d98ae6eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 14678d98ae6eSLiad Kaufman }; 14688d98ae6eSLiad Kaufman 146903c902bfSJohannes Berg /* Make sure reserved queue is still marked as such (if allocated) */ 147003c902bfSJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) 14718d98ae6eSLiad Kaufman mvm->queue_info[mvm_sta->reserved_queue].status = 14728d98ae6eSLiad Kaufman IWL_MVM_QUEUE_RESERVED; 14738d98ae6eSLiad Kaufman 14748d98ae6eSLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 14758d98ae6eSLiad Kaufman struct iwl_mvm_tid_data *tid_data = &mvm_sta->tid_data[i]; 14768d98ae6eSLiad Kaufman int txq_id = tid_data->txq_id; 14778d98ae6eSLiad Kaufman int ac; 14788d98ae6eSLiad Kaufman 14796862fceeSSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 14808d98ae6eSLiad Kaufman continue; 14818d98ae6eSLiad Kaufman 14828d98ae6eSLiad Kaufman ac = tid_to_mac80211_ac[i]; 14838d98ae6eSLiad Kaufman 1484310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1485310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 1486310181ecSSara Sharon "Re-mapping sta %d tid %d\n", 1487310181ecSSara Sharon mvm_sta->sta_id, i); 1488cfbc6c4cSSara Sharon txq_id = iwl_mvm_tvqm_enable_txq(mvm, mvm_sta->sta_id, 1489cfbc6c4cSSara Sharon i, wdg); 1490310181ecSSara Sharon tid_data->txq_id = txq_id; 14915d39051aSLiad Kaufman 14925d39051aSLiad Kaufman /* 14935d39051aSLiad Kaufman * Since we don't set the seq number after reset, and HW 14945d39051aSLiad Kaufman * sets it now, FW reset will cause the seq num to start 14955d39051aSLiad Kaufman * at 0 again, so driver will need to update it 14965d39051aSLiad Kaufman * internally as well, so it keeps in sync with real val 14975d39051aSLiad Kaufman */ 14985d39051aSLiad Kaufman tid_data->seq_number = 0; 1499310181ecSSara Sharon } else { 1500310181ecSSara Sharon u16 seq = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 1501310181ecSSara Sharon 15028d98ae6eSLiad Kaufman cfg.tid = i; 1503cf6c6ea3SEmmanuel Grumbach cfg.fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac); 15048d98ae6eSLiad Kaufman cfg.aggregate = (txq_id >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1505310181ecSSara Sharon txq_id == 1506310181ecSSara Sharon IWL_MVM_DQA_BSS_CLIENT_QUEUE); 15078d98ae6eSLiad Kaufman 15088d98ae6eSLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 15098d98ae6eSLiad Kaufman "Re-mapping sta %d tid %d to queue %d\n", 15108d98ae6eSLiad Kaufman mvm_sta->sta_id, i, txq_id); 15118d98ae6eSLiad Kaufman 1512cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, txq_id, seq, &cfg, wdg); 15138d98ae6eSLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_READY; 15148d98ae6eSLiad Kaufman } 151534e10860SSara Sharon } 15168d98ae6eSLiad Kaufman } 15178d98ae6eSLiad Kaufman 1518732d06e9SShaul Triebitz static int iwl_mvm_add_int_sta_common(struct iwl_mvm *mvm, 1519732d06e9SShaul Triebitz struct iwl_mvm_int_sta *sta, 1520732d06e9SShaul Triebitz const u8 *addr, 1521732d06e9SShaul Triebitz u16 mac_id, u16 color) 1522732d06e9SShaul Triebitz { 1523732d06e9SShaul Triebitz struct iwl_mvm_add_sta_cmd cmd; 1524732d06e9SShaul Triebitz int ret; 15253f497de9SLuca Coelho u32 status = ADD_STA_SUCCESS; 1526732d06e9SShaul Triebitz 1527732d06e9SShaul Triebitz lockdep_assert_held(&mvm->mutex); 1528732d06e9SShaul Triebitz 1529732d06e9SShaul Triebitz memset(&cmd, 0, sizeof(cmd)); 1530732d06e9SShaul Triebitz cmd.sta_id = sta->sta_id; 1531732d06e9SShaul Triebitz cmd.mac_id_n_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mac_id, 1532732d06e9SShaul Triebitz color)); 1533732d06e9SShaul Triebitz if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 1534732d06e9SShaul Triebitz cmd.station_type = sta->type; 1535732d06e9SShaul Triebitz 1536732d06e9SShaul Triebitz if (!iwl_mvm_has_new_tx_api(mvm)) 1537732d06e9SShaul Triebitz cmd.tfd_queue_msk = cpu_to_le32(sta->tfd_queue_msk); 1538732d06e9SShaul Triebitz cmd.tid_disable_tx = cpu_to_le16(0xffff); 1539732d06e9SShaul Triebitz 1540732d06e9SShaul Triebitz if (addr) 1541732d06e9SShaul Triebitz memcpy(cmd.addr, addr, ETH_ALEN); 1542732d06e9SShaul Triebitz 1543732d06e9SShaul Triebitz ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1544732d06e9SShaul Triebitz iwl_mvm_add_sta_cmd_size(mvm), 1545732d06e9SShaul Triebitz &cmd, &status); 1546732d06e9SShaul Triebitz if (ret) 1547732d06e9SShaul Triebitz return ret; 1548732d06e9SShaul Triebitz 1549732d06e9SShaul Triebitz switch (status & IWL_ADD_STA_STATUS_MASK) { 1550732d06e9SShaul Triebitz case ADD_STA_SUCCESS: 1551732d06e9SShaul Triebitz IWL_DEBUG_INFO(mvm, "Internal station added.\n"); 1552732d06e9SShaul Triebitz return 0; 1553732d06e9SShaul Triebitz default: 1554732d06e9SShaul Triebitz ret = -EIO; 1555732d06e9SShaul Triebitz IWL_ERR(mvm, "Add internal station failed, status=0x%x\n", 1556732d06e9SShaul Triebitz status); 1557732d06e9SShaul Triebitz break; 1558732d06e9SShaul Triebitz } 1559732d06e9SShaul Triebitz return ret; 1560732d06e9SShaul Triebitz } 1561732d06e9SShaul Triebitz 1562e705c121SKalle Valo int iwl_mvm_add_sta(struct iwl_mvm *mvm, 1563e705c121SKalle Valo struct ieee80211_vif *vif, 1564e705c121SKalle Valo struct ieee80211_sta *sta) 1565e705c121SKalle Valo { 1566e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1567e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1568a571f5f6SSara Sharon struct iwl_mvm_rxq_dup_data *dup_data; 1569e705c121SKalle Valo int i, ret, sta_id; 1570732d06e9SShaul Triebitz bool sta_update = false; 1571732d06e9SShaul Triebitz unsigned int sta_flags = 0; 1572e705c121SKalle Valo 1573e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1574e705c121SKalle Valo 1575e705c121SKalle Valo if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1576e705c121SKalle Valo sta_id = iwl_mvm_find_free_sta_id(mvm, 1577e705c121SKalle Valo ieee80211_vif_type_p2p(vif)); 1578e705c121SKalle Valo else 1579e705c121SKalle Valo sta_id = mvm_sta->sta_id; 1580e705c121SKalle Valo 15810ae98812SSara Sharon if (sta_id == IWL_MVM_INVALID_STA) 1582e705c121SKalle Valo return -ENOSPC; 1583e705c121SKalle Valo 1584e705c121SKalle Valo spin_lock_init(&mvm_sta->lock); 1585e705c121SKalle Valo 1586c8f54701SJohannes Berg /* if this is a HW restart re-alloc existing queues */ 1587c8f54701SJohannes Berg if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1588732d06e9SShaul Triebitz struct iwl_mvm_int_sta tmp_sta = { 1589732d06e9SShaul Triebitz .sta_id = sta_id, 1590732d06e9SShaul Triebitz .type = mvm_sta->sta_type, 1591732d06e9SShaul Triebitz }; 1592732d06e9SShaul Triebitz 1593732d06e9SShaul Triebitz /* 1594732d06e9SShaul Triebitz * First add an empty station since allocating 1595732d06e9SShaul Triebitz * a queue requires a valid station 1596732d06e9SShaul Triebitz */ 1597732d06e9SShaul Triebitz ret = iwl_mvm_add_int_sta_common(mvm, &tmp_sta, sta->addr, 1598732d06e9SShaul Triebitz mvmvif->id, mvmvif->color); 1599732d06e9SShaul Triebitz if (ret) 1600732d06e9SShaul Triebitz goto err; 1601732d06e9SShaul Triebitz 1602cfbc6c4cSSara Sharon iwl_mvm_realloc_queues_after_restart(mvm, sta); 1603732d06e9SShaul Triebitz sta_update = true; 1604732d06e9SShaul Triebitz sta_flags = iwl_mvm_has_new_tx_api(mvm) ? 0 : STA_MODIFY_QUEUES; 16058d98ae6eSLiad Kaufman goto update_fw; 16068d98ae6eSLiad Kaufman } 16078d98ae6eSLiad Kaufman 1608e705c121SKalle Valo mvm_sta->sta_id = sta_id; 1609e705c121SKalle Valo mvm_sta->mac_id_n_color = FW_CMD_ID_AND_COLOR(mvmvif->id, 1610e705c121SKalle Valo mvmvif->color); 1611e705c121SKalle Valo mvm_sta->vif = vif; 1612a58bb468SLiad Kaufman if (!mvm->trans->cfg->gen2) 1613e705c121SKalle Valo mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_DEF; 1614a58bb468SLiad Kaufman else 1615a58bb468SLiad Kaufman mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF; 1616e705c121SKalle Valo mvm_sta->tx_protection = 0; 1617e705c121SKalle Valo mvm_sta->tt_tx_protection = false; 1618ced19f26SSara Sharon mvm_sta->sta_type = sta->tdls ? IWL_STA_TDLS_LINK : IWL_STA_LINK; 1619e705c121SKalle Valo 1620e705c121SKalle Valo /* HW restart, don't assume the memory has been zeroed */ 1621e705c121SKalle Valo mvm_sta->tid_disable_agg = 0xffff; /* No aggs at first */ 1622e705c121SKalle Valo mvm_sta->tfd_queue_msk = 0; 1623e705c121SKalle Valo 1624e705c121SKalle Valo /* for HW restart - reset everything but the sequence number */ 162524afba76SLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 1626e705c121SKalle Valo u16 seq = mvm_sta->tid_data[i].seq_number; 1627e705c121SKalle Valo memset(&mvm_sta->tid_data[i], 0, sizeof(mvm_sta->tid_data[i])); 1628e705c121SKalle Valo mvm_sta->tid_data[i].seq_number = seq; 162924afba76SLiad Kaufman 163024afba76SLiad Kaufman /* 163124afba76SLiad Kaufman * Mark all queues for this STA as unallocated and defer TX 163224afba76SLiad Kaufman * frames until the queue is allocated 163324afba76SLiad Kaufman */ 16346862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 1635e705c121SKalle Valo } 1636cfbc6c4cSSara Sharon 1637cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1638cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1639cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1640cfbc6c4cSSara Sharon 1641cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 1642cfbc6c4cSSara Sharon INIT_LIST_HEAD(&mvmtxq->list); 1643fba8248eSSara Sharon atomic_set(&mvmtxq->tx_request, 0); 1644cfbc6c4cSSara Sharon } 1645cfbc6c4cSSara Sharon 1646e705c121SKalle Valo mvm_sta->agg_tids = 0; 1647e705c121SKalle Valo 1648a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && 1649a571f5f6SSara Sharon !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 165092c4dca6SJohannes Berg int q; 165192c4dca6SJohannes Berg 1652a571f5f6SSara Sharon dup_data = kcalloc(mvm->trans->num_rx_queues, 165392c4dca6SJohannes Berg sizeof(*dup_data), GFP_KERNEL); 1654a571f5f6SSara Sharon if (!dup_data) 1655a571f5f6SSara Sharon return -ENOMEM; 165692c4dca6SJohannes Berg /* 165792c4dca6SJohannes Berg * Initialize all the last_seq values to 0xffff which can never 165892c4dca6SJohannes Berg * compare equal to the frame's seq_ctrl in the check in 165992c4dca6SJohannes Berg * iwl_mvm_is_dup() since the lower 4 bits are the fragment 166092c4dca6SJohannes Berg * number and fragmented packets don't reach that function. 166192c4dca6SJohannes Berg * 166292c4dca6SJohannes Berg * This thus allows receiving a packet with seqno 0 and the 166392c4dca6SJohannes Berg * retry bit set as the very first packet on a new TID. 166492c4dca6SJohannes Berg */ 166592c4dca6SJohannes Berg for (q = 0; q < mvm->trans->num_rx_queues; q++) 166692c4dca6SJohannes Berg memset(dup_data[q].last_seq, 0xff, 166792c4dca6SJohannes Berg sizeof(dup_data[q].last_seq)); 1668a571f5f6SSara Sharon mvm_sta->dup_data = dup_data; 1669a571f5f6SSara Sharon } 1670a571f5f6SSara Sharon 1671c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 1672d5216a28SLiad Kaufman ret = iwl_mvm_reserve_sta_stream(mvm, sta, 1673d5216a28SLiad Kaufman ieee80211_vif_type_p2p(vif)); 167424afba76SLiad Kaufman if (ret) 167524afba76SLiad Kaufman goto err; 167624afba76SLiad Kaufman } 167724afba76SLiad Kaufman 16789f66a397SGregory Greenman /* 16799f66a397SGregory Greenman * if rs is registered with mac80211, then "add station" will be handled 16809f66a397SGregory Greenman * via the corresponding ops, otherwise need to notify rate scaling here 16819f66a397SGregory Greenman */ 16824243edb4SEmmanuel Grumbach if (iwl_mvm_has_tlc_offload(mvm)) 16839f66a397SGregory Greenman iwl_mvm_rs_add_sta(mvm, mvm_sta); 16849f66a397SGregory Greenman 16850dde2440SAvraham Stern iwl_mvm_toggle_tx_ant(mvm, &mvm_sta->tx_ant); 16860dde2440SAvraham Stern 16878d98ae6eSLiad Kaufman update_fw: 1688732d06e9SShaul Triebitz ret = iwl_mvm_sta_send_to_fw(mvm, sta, sta_update, sta_flags); 1689e705c121SKalle Valo if (ret) 1690e705c121SKalle Valo goto err; 1691e705c121SKalle Valo 1692e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) { 1693e705c121SKalle Valo if (!sta->tdls) { 16940ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id != IWL_MVM_INVALID_STA); 1695e705c121SKalle Valo mvmvif->ap_sta_id = sta_id; 1696e705c121SKalle Valo } else { 16970ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id == IWL_MVM_INVALID_STA); 1698e705c121SKalle Valo } 1699e705c121SKalle Valo } 1700e705c121SKalle Valo 1701e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], sta); 1702e705c121SKalle Valo 1703e705c121SKalle Valo return 0; 1704e705c121SKalle Valo 1705e705c121SKalle Valo err: 1706e705c121SKalle Valo return ret; 1707e705c121SKalle Valo } 1708e705c121SKalle Valo 1709e705c121SKalle Valo int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, 1710e705c121SKalle Valo bool drain) 1711e705c121SKalle Valo { 1712e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 1713e705c121SKalle Valo int ret; 1714e705c121SKalle Valo u32 status; 1715e705c121SKalle Valo 1716e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1717e705c121SKalle Valo 1718e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 1719e705c121SKalle Valo cmd.sta_id = mvmsta->sta_id; 1720e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 1721e705c121SKalle Valo cmd.station_flags = drain ? cpu_to_le32(STA_FLG_DRAIN_FLOW) : 0; 1722e705c121SKalle Valo cmd.station_flags_msk = cpu_to_le32(STA_FLG_DRAIN_FLOW); 1723e705c121SKalle Valo 1724e705c121SKalle Valo status = ADD_STA_SUCCESS; 1725854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1726854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 1727e705c121SKalle Valo &cmd, &status); 1728e705c121SKalle Valo if (ret) 1729e705c121SKalle Valo return ret; 1730e705c121SKalle Valo 1731837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 1732e705c121SKalle Valo case ADD_STA_SUCCESS: 1733e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "Frames for staid %d will drained in fw\n", 1734e705c121SKalle Valo mvmsta->sta_id); 1735e705c121SKalle Valo break; 1736e705c121SKalle Valo default: 1737e705c121SKalle Valo ret = -EIO; 1738e705c121SKalle Valo IWL_ERR(mvm, "Couldn't drain frames for staid %d\n", 1739e705c121SKalle Valo mvmsta->sta_id); 1740e705c121SKalle Valo break; 1741e705c121SKalle Valo } 1742e705c121SKalle Valo 1743e705c121SKalle Valo return ret; 1744e705c121SKalle Valo } 1745e705c121SKalle Valo 1746e705c121SKalle Valo /* 1747e705c121SKalle Valo * Remove a station from the FW table. Before sending the command to remove 1748e705c121SKalle Valo * the station validate that the station is indeed known to the driver (sanity 1749e705c121SKalle Valo * only). 1750e705c121SKalle Valo */ 1751e705c121SKalle Valo static int iwl_mvm_rm_sta_common(struct iwl_mvm *mvm, u8 sta_id) 1752e705c121SKalle Valo { 1753e705c121SKalle Valo struct ieee80211_sta *sta; 1754e705c121SKalle Valo struct iwl_mvm_rm_sta_cmd rm_sta_cmd = { 1755e705c121SKalle Valo .sta_id = sta_id, 1756e705c121SKalle Valo }; 1757e705c121SKalle Valo int ret; 1758e705c121SKalle Valo 1759e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 1760e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1761e705c121SKalle Valo 1762e705c121SKalle Valo /* Note: internal stations are marked as error values */ 1763e705c121SKalle Valo if (!sta) { 1764e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 1765e705c121SKalle Valo return -EINVAL; 1766e705c121SKalle Valo } 1767e705c121SKalle Valo 1768e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, REMOVE_STA, 0, 1769e705c121SKalle Valo sizeof(rm_sta_cmd), &rm_sta_cmd); 1770e705c121SKalle Valo if (ret) { 1771e705c121SKalle Valo IWL_ERR(mvm, "Failed to remove station. Id=%d\n", sta_id); 1772e705c121SKalle Valo return ret; 1773e705c121SKalle Valo } 1774e705c121SKalle Valo 1775e705c121SKalle Valo return 0; 1776e705c121SKalle Valo } 1777e705c121SKalle Valo 177824afba76SLiad Kaufman static void iwl_mvm_disable_sta_queues(struct iwl_mvm *mvm, 177924afba76SLiad Kaufman struct ieee80211_vif *vif, 1780cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 178124afba76SLiad Kaufman { 1782cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 178324afba76SLiad Kaufman int i; 178424afba76SLiad Kaufman 178524afba76SLiad Kaufman lockdep_assert_held(&mvm->mutex); 178624afba76SLiad Kaufman 178724afba76SLiad Kaufman for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 17886862fceeSSara Sharon if (mvm_sta->tid_data[i].txq_id == IWL_MVM_INVALID_QUEUE) 178924afba76SLiad Kaufman continue; 179024afba76SLiad Kaufman 1791cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, sta, mvm_sta->tid_data[i].txq_id, i, 1792cfbc6c4cSSara Sharon 0); 17936862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 179424afba76SLiad Kaufman } 1795cfbc6c4cSSara Sharon 1796cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1797cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1798cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1799cfbc6c4cSSara Sharon 1800cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 1801cfbc6c4cSSara Sharon } 180224afba76SLiad Kaufman } 180324afba76SLiad Kaufman 1804d6d517b7SSara Sharon int iwl_mvm_wait_sta_queues_empty(struct iwl_mvm *mvm, 1805d6d517b7SSara Sharon struct iwl_mvm_sta *mvm_sta) 1806d6d517b7SSara Sharon { 1807bec9522aSSharon Dvir int i; 1808d6d517b7SSara Sharon 1809d6d517b7SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 1810d6d517b7SSara Sharon u16 txq_id; 1811bec9522aSSharon Dvir int ret; 1812d6d517b7SSara Sharon 1813d6d517b7SSara Sharon spin_lock_bh(&mvm_sta->lock); 1814d6d517b7SSara Sharon txq_id = mvm_sta->tid_data[i].txq_id; 1815d6d517b7SSara Sharon spin_unlock_bh(&mvm_sta->lock); 1816d6d517b7SSara Sharon 1817d6d517b7SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 1818d6d517b7SSara Sharon continue; 1819d6d517b7SSara Sharon 1820d6d517b7SSara Sharon ret = iwl_trans_wait_txq_empty(mvm->trans, txq_id); 1821d6d517b7SSara Sharon if (ret) 1822bec9522aSSharon Dvir return ret; 1823d6d517b7SSara Sharon } 1824d6d517b7SSara Sharon 1825bec9522aSSharon Dvir return 0; 1826d6d517b7SSara Sharon } 1827d6d517b7SSara Sharon 1828e705c121SKalle Valo int iwl_mvm_rm_sta(struct iwl_mvm *mvm, 1829e705c121SKalle Valo struct ieee80211_vif *vif, 1830e705c121SKalle Valo struct ieee80211_sta *sta) 1831e705c121SKalle Valo { 1832e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1833e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 183494c3e614SSara Sharon u8 sta_id = mvm_sta->sta_id; 1835e705c121SKalle Valo int ret; 1836e705c121SKalle Valo 1837e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1838e705c121SKalle Valo 1839a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm)) 1840a571f5f6SSara Sharon kfree(mvm_sta->dup_data); 1841a571f5f6SSara Sharon 1842e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, true); 1843e705c121SKalle Valo if (ret) 1844e705c121SKalle Valo return ret; 1845c8f54701SJohannes Berg 1846e705c121SKalle Valo /* flush its queues here since we are freeing mvm_sta */ 1847d49394a1SSara Sharon ret = iwl_mvm_flush_sta(mvm, mvm_sta, false, 0); 1848e705c121SKalle Valo if (ret) 1849e705c121SKalle Valo return ret; 1850d6d517b7SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1851d6d517b7SSara Sharon ret = iwl_mvm_wait_sta_queues_empty(mvm, mvm_sta); 1852d6d517b7SSara Sharon } else { 1853d6d517b7SSara Sharon u32 q_mask = mvm_sta->tfd_queue_msk; 1854d6d517b7SSara Sharon 1855a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 1856d6d517b7SSara Sharon q_mask); 1857d6d517b7SSara Sharon } 1858e705c121SKalle Valo if (ret) 1859e705c121SKalle Valo return ret; 1860c8f54701SJohannes Berg 1861e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, false); 1862e705c121SKalle Valo 1863cfbc6c4cSSara Sharon iwl_mvm_disable_sta_queues(mvm, vif, sta); 186456214749SLiad Kaufman 186556214749SLiad Kaufman /* If there is a TXQ still marked as reserved - free it */ 1866c8f54701SJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) { 1867a0315deaSLiad Kaufman u8 reserved_txq = mvm_sta->reserved_queue; 1868a0315deaSLiad Kaufman enum iwl_mvm_queue_status *status; 1869a0315deaSLiad Kaufman 1870a0315deaSLiad Kaufman /* 1871a0315deaSLiad Kaufman * If no traffic has gone through the reserved TXQ - it 1872a0315deaSLiad Kaufman * is still marked as IWL_MVM_QUEUE_RESERVED, and 1873a0315deaSLiad Kaufman * should be manually marked as free again 1874a0315deaSLiad Kaufman */ 1875a0315deaSLiad Kaufman status = &mvm->queue_info[reserved_txq].status; 1876a0315deaSLiad Kaufman if (WARN((*status != IWL_MVM_QUEUE_RESERVED) && 1877a0315deaSLiad Kaufman (*status != IWL_MVM_QUEUE_FREE), 1878a0315deaSLiad Kaufman "sta_id %d reserved txq %d status %d", 1879f3f240f9SJohannes Berg sta_id, reserved_txq, *status)) 1880a0315deaSLiad Kaufman return -EINVAL; 1881a0315deaSLiad Kaufman 1882a0315deaSLiad Kaufman *status = IWL_MVM_QUEUE_FREE; 1883a0315deaSLiad Kaufman } 1884a0315deaSLiad Kaufman 1885e3118ad7SLiad Kaufman if (vif->type == NL80211_IFTYPE_STATION && 188694c3e614SSara Sharon mvmvif->ap_sta_id == sta_id) { 1887e3118ad7SLiad Kaufman /* if associated - we can't remove the AP STA now */ 1888e705c121SKalle Valo if (vif->bss_conf.assoc) 1889e705c121SKalle Valo return ret; 1890e705c121SKalle Valo 1891e705c121SKalle Valo /* unassoc - go ahead - remove the AP STA now */ 18920ae98812SSara Sharon mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1893e705c121SKalle Valo 1894e705c121SKalle Valo /* clear d0i3_ap_sta_id if no longer relevant */ 189594c3e614SSara Sharon if (mvm->d0i3_ap_sta_id == sta_id) 18960ae98812SSara Sharon mvm->d0i3_ap_sta_id = IWL_MVM_INVALID_STA; 1897e705c121SKalle Valo } 1898e705c121SKalle Valo 1899e705c121SKalle Valo /* 1900e705c121SKalle Valo * This shouldn't happen - the TDLS channel switch should be canceled 1901e705c121SKalle Valo * before the STA is removed. 1902e705c121SKalle Valo */ 190394c3e614SSara Sharon if (WARN_ON_ONCE(mvm->tdls_cs.peer.sta_id == sta_id)) { 19040ae98812SSara Sharon mvm->tdls_cs.peer.sta_id = IWL_MVM_INVALID_STA; 1905e705c121SKalle Valo cancel_delayed_work(&mvm->tdls_cs.dwork); 1906e705c121SKalle Valo } 1907e705c121SKalle Valo 1908e705c121SKalle Valo /* 1909e705c121SKalle Valo * Make sure that the tx response code sees the station as -EBUSY and 1910e705c121SKalle Valo * calls the drain worker. 1911e705c121SKalle Valo */ 1912e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 1913e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 1914e705c121SKalle Valo 1915e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvm_sta->sta_id); 1916e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[mvm_sta->sta_id], NULL); 1917e705c121SKalle Valo 1918e705c121SKalle Valo return ret; 1919e705c121SKalle Valo } 1920e705c121SKalle Valo 1921e705c121SKalle Valo int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm, 1922e705c121SKalle Valo struct ieee80211_vif *vif, 1923e705c121SKalle Valo u8 sta_id) 1924e705c121SKalle Valo { 1925e705c121SKalle Valo int ret = iwl_mvm_rm_sta_common(mvm, sta_id); 1926e705c121SKalle Valo 1927e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1928e705c121SKalle Valo 1929e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], NULL); 1930e705c121SKalle Valo return ret; 1931e705c121SKalle Valo } 1932e705c121SKalle Valo 19330e39eb03SChaya Rachel Ivgi int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, 1934e705c121SKalle Valo struct iwl_mvm_int_sta *sta, 1935ced19f26SSara Sharon u32 qmask, enum nl80211_iftype iftype, 1936ced19f26SSara Sharon enum iwl_sta_type type) 1937e705c121SKalle Valo { 1938df65c8d1SAvraham Stern if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1939df65c8d1SAvraham Stern sta->sta_id == IWL_MVM_INVALID_STA) { 1940e705c121SKalle Valo sta->sta_id = iwl_mvm_find_free_sta_id(mvm, iftype); 19410ae98812SSara Sharon if (WARN_ON_ONCE(sta->sta_id == IWL_MVM_INVALID_STA)) 1942e705c121SKalle Valo return -ENOSPC; 1943e705c121SKalle Valo } 1944e705c121SKalle Valo 1945e705c121SKalle Valo sta->tfd_queue_msk = qmask; 1946ced19f26SSara Sharon sta->type = type; 1947e705c121SKalle Valo 1948e705c121SKalle Valo /* put a non-NULL value so iterating over the stations won't stop */ 1949e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta->sta_id], ERR_PTR(-EINVAL)); 1950e705c121SKalle Valo return 0; 1951e705c121SKalle Valo } 1952e705c121SKalle Valo 195326d6c16bSSara Sharon void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta) 1954e705c121SKalle Valo { 1955e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta->sta_id], NULL); 1956e705c121SKalle Valo memset(sta, 0, sizeof(struct iwl_mvm_int_sta)); 19570ae98812SSara Sharon sta->sta_id = IWL_MVM_INVALID_STA; 1958e705c121SKalle Valo } 1959e705c121SKalle Valo 1960b13f43a4SEmmanuel Grumbach static void iwl_mvm_enable_aux_snif_queue(struct iwl_mvm *mvm, u16 *queue, 1961b13f43a4SEmmanuel Grumbach u8 sta_id, u8 fifo) 1962e705c121SKalle Valo { 1963e705c121SKalle Valo unsigned int wdg_timeout = iwlmvm_mod_params.tfd_q_hang_detect ? 1964e705c121SKalle Valo mvm->cfg->base_params->wd_timeout : 1965e705c121SKalle Valo IWL_WATCHDOG_DISABLED; 1966e705c121SKalle Valo 1967310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1968b13f43a4SEmmanuel Grumbach int tvqm_queue = 1969cfbc6c4cSSara Sharon iwl_mvm_tvqm_enable_txq(mvm, sta_id, 1970310181ecSSara Sharon IWL_MAX_TID_COUNT, 1971310181ecSSara Sharon wdg_timeout); 1972b13f43a4SEmmanuel Grumbach *queue = tvqm_queue; 1973c8f54701SJohannes Berg } else { 197428d0793eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 1975b13f43a4SEmmanuel Grumbach .fifo = fifo, 1976b13f43a4SEmmanuel Grumbach .sta_id = sta_id, 197728d0793eSLiad Kaufman .tid = IWL_MAX_TID_COUNT, 197828d0793eSLiad Kaufman .aggregate = false, 197928d0793eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 198028d0793eSLiad Kaufman }; 198128d0793eSLiad Kaufman 1982cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, *queue, 0, &cfg, wdg_timeout); 198328d0793eSLiad Kaufman } 1984c5a719eeSSara Sharon } 1985c5a719eeSSara Sharon 1986c5a719eeSSara Sharon int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm) 1987c5a719eeSSara Sharon { 1988c5a719eeSSara Sharon int ret; 1989c5a719eeSSara Sharon 1990c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 1991c5a719eeSSara Sharon 1992c5a719eeSSara Sharon /* Allocate aux station and assign to it the aux queue */ 1993c5a719eeSSara Sharon ret = iwl_mvm_allocate_int_sta(mvm, &mvm->aux_sta, BIT(mvm->aux_queue), 1994ced19f26SSara Sharon NL80211_IFTYPE_UNSPECIFIED, 1995ced19f26SSara Sharon IWL_STA_AUX_ACTIVITY); 1996c5a719eeSSara Sharon if (ret) 1997c5a719eeSSara Sharon return ret; 1998c5a719eeSSara Sharon 1999c5a719eeSSara Sharon /* Map Aux queue to fifo - needs to happen before adding Aux station */ 2000c5a719eeSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) 2001b13f43a4SEmmanuel Grumbach iwl_mvm_enable_aux_snif_queue(mvm, &mvm->aux_queue, 2002b13f43a4SEmmanuel Grumbach mvm->aux_sta.sta_id, 2003b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_MCAST); 200428d0793eSLiad Kaufman 2005e705c121SKalle Valo ret = iwl_mvm_add_int_sta_common(mvm, &mvm->aux_sta, NULL, 2006e705c121SKalle Valo MAC_INDEX_AUX, 0); 2007c5a719eeSSara Sharon if (ret) { 2008e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2009e705c121SKalle Valo return ret; 2010e705c121SKalle Valo } 2011e705c121SKalle Valo 2012c5a719eeSSara Sharon /* 20132f7a3863SLuca Coelho * For 22000 firmware and on we cannot add queue to a station unknown 2014c5a719eeSSara Sharon * to firmware so enable queue here - after the station was added 2015c5a719eeSSara Sharon */ 2016c5a719eeSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 2017b13f43a4SEmmanuel Grumbach iwl_mvm_enable_aux_snif_queue(mvm, &mvm->aux_queue, 2018b13f43a4SEmmanuel Grumbach mvm->aux_sta.sta_id, 2019b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_MCAST); 2020c5a719eeSSara Sharon 2021c5a719eeSSara Sharon return 0; 2022c5a719eeSSara Sharon } 2023c5a719eeSSara Sharon 20240e39eb03SChaya Rachel Ivgi int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 20250e39eb03SChaya Rachel Ivgi { 20260e39eb03SChaya Rachel Ivgi struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2027b13f43a4SEmmanuel Grumbach int ret; 20280e39eb03SChaya Rachel Ivgi 20290e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 2030b13f43a4SEmmanuel Grumbach 2031b13f43a4SEmmanuel Grumbach /* Map snif queue to fifo - must happen before adding snif station */ 2032b13f43a4SEmmanuel Grumbach if (!iwl_mvm_has_new_tx_api(mvm)) 2033b13f43a4SEmmanuel Grumbach iwl_mvm_enable_aux_snif_queue(mvm, &mvm->snif_queue, 2034b13f43a4SEmmanuel Grumbach mvm->snif_sta.sta_id, 2035b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_BE); 2036b13f43a4SEmmanuel Grumbach 2037b13f43a4SEmmanuel Grumbach ret = iwl_mvm_add_int_sta_common(mvm, &mvm->snif_sta, vif->addr, 20380e39eb03SChaya Rachel Ivgi mvmvif->id, 0); 2039b13f43a4SEmmanuel Grumbach if (ret) 2040b13f43a4SEmmanuel Grumbach return ret; 2041b13f43a4SEmmanuel Grumbach 2042b13f43a4SEmmanuel Grumbach /* 2043b13f43a4SEmmanuel Grumbach * For 22000 firmware and on we cannot add queue to a station unknown 2044b13f43a4SEmmanuel Grumbach * to firmware so enable queue here - after the station was added 2045b13f43a4SEmmanuel Grumbach */ 2046b13f43a4SEmmanuel Grumbach if (iwl_mvm_has_new_tx_api(mvm)) 2047b13f43a4SEmmanuel Grumbach iwl_mvm_enable_aux_snif_queue(mvm, &mvm->snif_queue, 2048b13f43a4SEmmanuel Grumbach mvm->snif_sta.sta_id, 2049b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_BE); 2050b13f43a4SEmmanuel Grumbach 2051b13f43a4SEmmanuel Grumbach return 0; 20520e39eb03SChaya Rachel Ivgi } 20530e39eb03SChaya Rachel Ivgi 20540e39eb03SChaya Rachel Ivgi int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 20550e39eb03SChaya Rachel Ivgi { 20560e39eb03SChaya Rachel Ivgi int ret; 20570e39eb03SChaya Rachel Ivgi 20580e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 20590e39eb03SChaya Rachel Ivgi 2060cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, NULL, mvm->snif_queue, IWL_MAX_TID_COUNT, 0); 20610e39eb03SChaya Rachel Ivgi ret = iwl_mvm_rm_sta_common(mvm, mvm->snif_sta.sta_id); 20620e39eb03SChaya Rachel Ivgi if (ret) 20630e39eb03SChaya Rachel Ivgi IWL_WARN(mvm, "Failed sending remove station\n"); 20640e39eb03SChaya Rachel Ivgi 20650e39eb03SChaya Rachel Ivgi return ret; 20660e39eb03SChaya Rachel Ivgi } 20670e39eb03SChaya Rachel Ivgi 20680e39eb03SChaya Rachel Ivgi void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm) 20690e39eb03SChaya Rachel Ivgi { 20700e39eb03SChaya Rachel Ivgi iwl_mvm_dealloc_int_sta(mvm, &mvm->snif_sta); 20710e39eb03SChaya Rachel Ivgi } 20720e39eb03SChaya Rachel Ivgi 2073e705c121SKalle Valo void iwl_mvm_del_aux_sta(struct iwl_mvm *mvm) 2074e705c121SKalle Valo { 2075e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2076e705c121SKalle Valo 2077e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2078e705c121SKalle Valo } 2079e705c121SKalle Valo 2080e705c121SKalle Valo /* 2081e705c121SKalle Valo * Send the add station command for the vif's broadcast station. 2082e705c121SKalle Valo * Assumes that the station was already allocated. 2083e705c121SKalle Valo * 2084e705c121SKalle Valo * @mvm: the mvm component 2085e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2086e705c121SKalle Valo * @bsta: the broadcast station to add. 2087e705c121SKalle Valo */ 2088e705c121SKalle Valo int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2089e705c121SKalle Valo { 2090e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2091e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 2092e705c121SKalle Valo static const u8 _baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; 2093e705c121SKalle Valo const u8 *baddr = _baddr; 20947daa7624SJohannes Berg int queue; 2095df88c08dSLiad Kaufman int ret; 2096c5a719eeSSara Sharon unsigned int wdg_timeout = 2097c5a719eeSSara Sharon iwl_mvm_get_wd_timeout(mvm, vif, false, false); 2098de24f638SLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 2099de24f638SLiad Kaufman .fifo = IWL_MVM_TX_FIFO_VO, 2100de24f638SLiad Kaufman .sta_id = mvmvif->bcast_sta.sta_id, 2101de24f638SLiad Kaufman .tid = IWL_MAX_TID_COUNT, 2102de24f638SLiad Kaufman .aggregate = false, 2103de24f638SLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 2104de24f638SLiad Kaufman }; 2105de24f638SLiad Kaufman 2106c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2107c5a719eeSSara Sharon 2108c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 21094d339989SLiad Kaufman if (vif->type == NL80211_IFTYPE_AP || 21104d339989SLiad Kaufman vif->type == NL80211_IFTYPE_ADHOC) 211149f71713SSara Sharon queue = mvm->probe_queue; 2112df88c08dSLiad Kaufman else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 211349f71713SSara Sharon queue = mvm->p2p_dev_queue; 2114df88c08dSLiad Kaufman else if (WARN(1, "Missing required TXQ for adding bcast STA\n")) 2115de24f638SLiad Kaufman return -EINVAL; 2116de24f638SLiad Kaufman 2117df88c08dSLiad Kaufman bsta->tfd_queue_msk |= BIT(queue); 2118c5a719eeSSara Sharon 2119cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 2120de24f638SLiad Kaufman } 2121de24f638SLiad Kaufman 2122e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_ADHOC) 2123e705c121SKalle Valo baddr = vif->bss_conf.bssid; 2124e705c121SKalle Valo 21250ae98812SSara Sharon if (WARN_ON_ONCE(bsta->sta_id == IWL_MVM_INVALID_STA)) 2126e705c121SKalle Valo return -ENOSPC; 2127e705c121SKalle Valo 2128df88c08dSLiad Kaufman ret = iwl_mvm_add_int_sta_common(mvm, bsta, baddr, 2129e705c121SKalle Valo mvmvif->id, mvmvif->color); 2130df88c08dSLiad Kaufman if (ret) 2131df88c08dSLiad Kaufman return ret; 2132df88c08dSLiad Kaufman 2133df88c08dSLiad Kaufman /* 21342f7a3863SLuca Coelho * For 22000 firmware and on we cannot add queue to a station unknown 2135c5a719eeSSara Sharon * to firmware so enable queue here - after the station was added 2136df88c08dSLiad Kaufman */ 2137310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 2138cfbc6c4cSSara Sharon queue = iwl_mvm_tvqm_enable_txq(mvm, bsta->sta_id, 2139310181ecSSara Sharon IWL_MAX_TID_COUNT, 2140c5a719eeSSara Sharon wdg_timeout); 21417daa7624SJohannes Berg 21427b758a11SLuca Coelho if (vif->type == NL80211_IFTYPE_AP || 21437b758a11SLuca Coelho vif->type == NL80211_IFTYPE_ADHOC) 2144310181ecSSara Sharon mvm->probe_queue = queue; 2145310181ecSSara Sharon else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 2146310181ecSSara Sharon mvm->p2p_dev_queue = queue; 2147310181ecSSara Sharon } 2148df88c08dSLiad Kaufman 2149df88c08dSLiad Kaufman return 0; 2150df88c08dSLiad Kaufman } 2151df88c08dSLiad Kaufman 2152df88c08dSLiad Kaufman static void iwl_mvm_free_bcast_sta_queues(struct iwl_mvm *mvm, 2153df88c08dSLiad Kaufman struct ieee80211_vif *vif) 2154df88c08dSLiad Kaufman { 2155df88c08dSLiad Kaufman struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2156d167e81aSMordechai Goodstein int queue; 2157df88c08dSLiad Kaufman 2158df88c08dSLiad Kaufman lockdep_assert_held(&mvm->mutex); 2159df88c08dSLiad Kaufman 2160d49394a1SSara Sharon iwl_mvm_flush_sta(mvm, &mvmvif->bcast_sta, true, 0); 2161d49394a1SSara Sharon 2162d167e81aSMordechai Goodstein switch (vif->type) { 2163d167e81aSMordechai Goodstein case NL80211_IFTYPE_AP: 2164d167e81aSMordechai Goodstein case NL80211_IFTYPE_ADHOC: 2165d167e81aSMordechai Goodstein queue = mvm->probe_queue; 2166d167e81aSMordechai Goodstein break; 2167d167e81aSMordechai Goodstein case NL80211_IFTYPE_P2P_DEVICE: 2168d167e81aSMordechai Goodstein queue = mvm->p2p_dev_queue; 2169d167e81aSMordechai Goodstein break; 2170d167e81aSMordechai Goodstein default: 2171d167e81aSMordechai Goodstein WARN(1, "Can't free bcast queue on vif type %d\n", 2172d167e81aSMordechai Goodstein vif->type); 2173d167e81aSMordechai Goodstein return; 2174df88c08dSLiad Kaufman } 2175df88c08dSLiad Kaufman 2176cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, NULL, queue, IWL_MAX_TID_COUNT, 0); 2177d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) 2178d167e81aSMordechai Goodstein return; 2179d167e81aSMordechai Goodstein 2180d167e81aSMordechai Goodstein WARN_ON(!(mvmvif->bcast_sta.tfd_queue_msk & BIT(queue))); 2181d167e81aSMordechai Goodstein mvmvif->bcast_sta.tfd_queue_msk &= ~BIT(queue); 2182e705c121SKalle Valo } 2183e705c121SKalle Valo 2184e705c121SKalle Valo /* Send the FW a request to remove the station from it's internal data 2185e705c121SKalle Valo * structures, but DO NOT remove the entry from the local data structures. */ 2186e705c121SKalle Valo int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2187e705c121SKalle Valo { 2188e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2189e705c121SKalle Valo int ret; 2190e705c121SKalle Valo 2191e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2192e705c121SKalle Valo 2193df88c08dSLiad Kaufman iwl_mvm_free_bcast_sta_queues(mvm, vif); 2194df88c08dSLiad Kaufman 2195e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvmvif->bcast_sta.sta_id); 2196e705c121SKalle Valo if (ret) 2197e705c121SKalle Valo IWL_WARN(mvm, "Failed sending remove station\n"); 2198e705c121SKalle Valo return ret; 2199e705c121SKalle Valo } 2200e705c121SKalle Valo 2201e705c121SKalle Valo int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2202e705c121SKalle Valo { 2203e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2204e705c121SKalle Valo 2205e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2206e705c121SKalle Valo 2207c8f54701SJohannes Berg return iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, 0, 2208ced19f26SSara Sharon ieee80211_vif_type_p2p(vif), 2209ced19f26SSara Sharon IWL_STA_GENERAL_PURPOSE); 2210e705c121SKalle Valo } 2211e705c121SKalle Valo 2212e705c121SKalle Valo /* Allocate a new station entry for the broadcast station to the given vif, 2213e705c121SKalle Valo * and send it to the FW. 2214e705c121SKalle Valo * Note that each P2P mac should have its own broadcast station. 2215e705c121SKalle Valo * 2216e705c121SKalle Valo * @mvm: the mvm component 2217e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2218e705c121SKalle Valo * @bsta: the broadcast station to add. */ 2219d197358bSLuca Coelho int iwl_mvm_add_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2220e705c121SKalle Valo { 2221e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2222e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 2223e705c121SKalle Valo int ret; 2224e705c121SKalle Valo 2225e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2226e705c121SKalle Valo 2227e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 2228e705c121SKalle Valo if (ret) 2229e705c121SKalle Valo return ret; 2230e705c121SKalle Valo 2231e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2232e705c121SKalle Valo 2233e705c121SKalle Valo if (ret) 2234e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, bsta); 2235e705c121SKalle Valo 2236e705c121SKalle Valo return ret; 2237e705c121SKalle Valo } 2238e705c121SKalle Valo 2239e705c121SKalle Valo void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2240e705c121SKalle Valo { 2241e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2242e705c121SKalle Valo 2243e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta); 2244e705c121SKalle Valo } 2245e705c121SKalle Valo 2246e705c121SKalle Valo /* 2247e705c121SKalle Valo * Send the FW a request to remove the station from it's internal data 2248e705c121SKalle Valo * structures, and in addition remove it from the local data structure. 2249e705c121SKalle Valo */ 2250d197358bSLuca Coelho int iwl_mvm_rm_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2251e705c121SKalle Valo { 2252e705c121SKalle Valo int ret; 2253e705c121SKalle Valo 2254e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2255e705c121SKalle Valo 2256e705c121SKalle Valo ret = iwl_mvm_send_rm_bcast_sta(mvm, vif); 2257e705c121SKalle Valo 2258e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif); 2259e705c121SKalle Valo 2260e705c121SKalle Valo return ret; 2261e705c121SKalle Valo } 2262e705c121SKalle Valo 226326d6c16bSSara Sharon /* 226426d6c16bSSara Sharon * Allocate a new station entry for the multicast station to the given vif, 226526d6c16bSSara Sharon * and send it to the FW. 226626d6c16bSSara Sharon * Note that each AP/GO mac should have its own multicast station. 226726d6c16bSSara Sharon * 226826d6c16bSSara Sharon * @mvm: the mvm component 226926d6c16bSSara Sharon * @vif: the interface to which the multicast station is added 227026d6c16bSSara Sharon */ 227126d6c16bSSara Sharon int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 227226d6c16bSSara Sharon { 227326d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 227426d6c16bSSara Sharon struct iwl_mvm_int_sta *msta = &mvmvif->mcast_sta; 227526d6c16bSSara Sharon static const u8 _maddr[] = {0x03, 0x00, 0x00, 0x00, 0x00, 0x00}; 227626d6c16bSSara Sharon const u8 *maddr = _maddr; 227726d6c16bSSara Sharon struct iwl_trans_txq_scd_cfg cfg = { 227826d6c16bSSara Sharon .fifo = IWL_MVM_TX_FIFO_MCAST, 227926d6c16bSSara Sharon .sta_id = msta->sta_id, 22806508de03SIlan Peer .tid = 0, 228126d6c16bSSara Sharon .aggregate = false, 228226d6c16bSSara Sharon .frame_limit = IWL_FRAME_LIMIT, 228326d6c16bSSara Sharon }; 228426d6c16bSSara Sharon unsigned int timeout = iwl_mvm_get_wd_timeout(mvm, vif, false, false); 228526d6c16bSSara Sharon int ret; 228626d6c16bSSara Sharon 228726d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 228826d6c16bSSara Sharon 2289ee48b722SLiad Kaufman if (WARN_ON(vif->type != NL80211_IFTYPE_AP && 2290ee48b722SLiad Kaufman vif->type != NL80211_IFTYPE_ADHOC)) 229126d6c16bSSara Sharon return -ENOTSUPP; 229226d6c16bSSara Sharon 2293ced19f26SSara Sharon /* 2294fc07bd8cSSara Sharon * In IBSS, ieee80211_check_queues() sets the cab_queue to be 2295fc07bd8cSSara Sharon * invalid, so make sure we use the queue we want. 2296fc07bd8cSSara Sharon * Note that this is done here as we want to avoid making DQA 2297fc07bd8cSSara Sharon * changes in mac80211 layer. 2298fc07bd8cSSara Sharon */ 2299cfbc6c4cSSara Sharon if (vif->type == NL80211_IFTYPE_ADHOC) 2300cfbc6c4cSSara Sharon mvmvif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE; 2301fc07bd8cSSara Sharon 2302fc07bd8cSSara Sharon /* 2303ced19f26SSara Sharon * While in previous FWs we had to exclude cab queue from TFD queue 2304ced19f26SSara Sharon * mask, now it is needed as any other queue. 2305ced19f26SSara Sharon */ 2306ced19f26SSara Sharon if (!iwl_mvm_has_new_tx_api(mvm) && 2307ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2308cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, 2309cfbc6c4cSSara Sharon timeout); 2310cfbc6c4cSSara Sharon msta->tfd_queue_msk |= BIT(mvmvif->cab_queue); 2311ced19f26SSara Sharon } 231226d6c16bSSara Sharon ret = iwl_mvm_add_int_sta_common(mvm, msta, maddr, 231326d6c16bSSara Sharon mvmvif->id, mvmvif->color); 231426d6c16bSSara Sharon if (ret) { 231526d6c16bSSara Sharon iwl_mvm_dealloc_int_sta(mvm, msta); 231626d6c16bSSara Sharon return ret; 231726d6c16bSSara Sharon } 231826d6c16bSSara Sharon 231926d6c16bSSara Sharon /* 232026d6c16bSSara Sharon * Enable cab queue after the ADD_STA command is sent. 23212f7a3863SLuca Coelho * This is needed for 22000 firmware which won't accept SCD_QUEUE_CFG 2322ced19f26SSara Sharon * command with unknown station id, and for FW that doesn't support 2323ced19f26SSara Sharon * station API since the cab queue is not included in the 2324ced19f26SSara Sharon * tfd_queue_mask. 232526d6c16bSSara Sharon */ 2326310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 2327cfbc6c4cSSara Sharon int queue = iwl_mvm_tvqm_enable_txq(mvm, msta->sta_id, 23286508de03SIlan Peer 0, 232926d6c16bSSara Sharon timeout); 2330e2af3fabSSara Sharon mvmvif->cab_queue = queue; 2331ced19f26SSara Sharon } else if (!fw_has_api(&mvm->fw->ucode_capa, 2332fc07bd8cSSara Sharon IWL_UCODE_TLV_API_STA_TYPE)) 2333cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, 2334cfbc6c4cSSara Sharon timeout); 233526d6c16bSSara Sharon 233626d6c16bSSara Sharon return 0; 233726d6c16bSSara Sharon } 233826d6c16bSSara Sharon 233928916a16SEmmanuel Grumbach static int __iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, u8 sta_id, 234028916a16SEmmanuel Grumbach struct ieee80211_key_conf *keyconf, 234128916a16SEmmanuel Grumbach bool mcast) 234228916a16SEmmanuel Grumbach { 234328916a16SEmmanuel Grumbach union { 234428916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 234528916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd cmd; 234628916a16SEmmanuel Grumbach } u = {}; 234728916a16SEmmanuel Grumbach bool new_api = fw_has_api(&mvm->fw->ucode_capa, 234828916a16SEmmanuel Grumbach IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 234928916a16SEmmanuel Grumbach __le16 key_flags; 235028916a16SEmmanuel Grumbach int ret, size; 235128916a16SEmmanuel Grumbach u32 status; 235228916a16SEmmanuel Grumbach 235328916a16SEmmanuel Grumbach /* This is a valid situation for GTK removal */ 235428916a16SEmmanuel Grumbach if (sta_id == IWL_MVM_INVALID_STA) 235528916a16SEmmanuel Grumbach return 0; 235628916a16SEmmanuel Grumbach 235728916a16SEmmanuel Grumbach key_flags = cpu_to_le16((keyconf->keyidx << STA_KEY_FLG_KEYID_POS) & 235828916a16SEmmanuel Grumbach STA_KEY_FLG_KEYID_MSK); 235928916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_FLG_NO_ENC | STA_KEY_FLG_WEP_KEY_MAP); 236028916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_NOT_VALID); 236128916a16SEmmanuel Grumbach 236228916a16SEmmanuel Grumbach if (mcast) 236328916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 236428916a16SEmmanuel Grumbach 236528916a16SEmmanuel Grumbach /* 236628916a16SEmmanuel Grumbach * The fields assigned here are in the same location at the start 236728916a16SEmmanuel Grumbach * of the command, so we can do this union trick. 236828916a16SEmmanuel Grumbach */ 236928916a16SEmmanuel Grumbach u.cmd.common.key_flags = key_flags; 237028916a16SEmmanuel Grumbach u.cmd.common.key_offset = keyconf->hw_key_idx; 237128916a16SEmmanuel Grumbach u.cmd.common.sta_id = sta_id; 237228916a16SEmmanuel Grumbach 237328916a16SEmmanuel Grumbach size = new_api ? sizeof(u.cmd) : sizeof(u.cmd_v1); 237428916a16SEmmanuel Grumbach 237528916a16SEmmanuel Grumbach status = ADD_STA_SUCCESS; 237628916a16SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, &u.cmd, 237728916a16SEmmanuel Grumbach &status); 237828916a16SEmmanuel Grumbach 237928916a16SEmmanuel Grumbach switch (status) { 238028916a16SEmmanuel Grumbach case ADD_STA_SUCCESS: 238128916a16SEmmanuel Grumbach IWL_DEBUG_WEP(mvm, "MODIFY_STA: remove sta key passed\n"); 238228916a16SEmmanuel Grumbach break; 238328916a16SEmmanuel Grumbach default: 238428916a16SEmmanuel Grumbach ret = -EIO; 238528916a16SEmmanuel Grumbach IWL_ERR(mvm, "MODIFY_STA: remove sta key failed\n"); 238628916a16SEmmanuel Grumbach break; 238728916a16SEmmanuel Grumbach } 238828916a16SEmmanuel Grumbach 238928916a16SEmmanuel Grumbach return ret; 239028916a16SEmmanuel Grumbach } 239128916a16SEmmanuel Grumbach 239226d6c16bSSara Sharon /* 239326d6c16bSSara Sharon * Send the FW a request to remove the station from it's internal data 239426d6c16bSSara Sharon * structures, and in addition remove it from the local data structure. 239526d6c16bSSara Sharon */ 239626d6c16bSSara Sharon int iwl_mvm_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 239726d6c16bSSara Sharon { 239826d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 239926d6c16bSSara Sharon int ret; 240026d6c16bSSara Sharon 240126d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 240226d6c16bSSara Sharon 2403d49394a1SSara Sharon iwl_mvm_flush_sta(mvm, &mvmvif->mcast_sta, true, 0); 2404d49394a1SSara Sharon 2405cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, NULL, mvmvif->cab_queue, 0, 0); 240626d6c16bSSara Sharon 240726d6c16bSSara Sharon ret = iwl_mvm_rm_sta_common(mvm, mvmvif->mcast_sta.sta_id); 240826d6c16bSSara Sharon if (ret) 240926d6c16bSSara Sharon IWL_WARN(mvm, "Failed sending remove station\n"); 241026d6c16bSSara Sharon 241126d6c16bSSara Sharon return ret; 241226d6c16bSSara Sharon } 241326d6c16bSSara Sharon 2414e705c121SKalle Valo #define IWL_MAX_RX_BA_SESSIONS 16 2415e705c121SKalle Valo 2416b915c101SSara Sharon static void iwl_mvm_sync_rxq_del_ba(struct iwl_mvm *mvm, u8 baid) 241710b2b201SSara Sharon { 2418b915c101SSara Sharon struct iwl_mvm_delba_notif notif = { 2419b915c101SSara Sharon .metadata.type = IWL_MVM_RXQ_NOTIF_DEL_BA, 2420b915c101SSara Sharon .metadata.sync = 1, 2421b915c101SSara Sharon .delba.baid = baid, 2422b915c101SSara Sharon }; 2423b915c101SSara Sharon iwl_mvm_sync_rx_queues_internal(mvm, (void *)¬if, sizeof(notif)); 242410b2b201SSara Sharon }; 242510b2b201SSara Sharon 2426b915c101SSara Sharon static void iwl_mvm_free_reorder(struct iwl_mvm *mvm, 2427b915c101SSara Sharon struct iwl_mvm_baid_data *data) 2428b915c101SSara Sharon { 2429b915c101SSara Sharon int i; 2430b915c101SSara Sharon 2431b915c101SSara Sharon iwl_mvm_sync_rxq_del_ba(mvm, data->baid); 2432b915c101SSara Sharon 2433b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2434b915c101SSara Sharon int j; 2435b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2436b915c101SSara Sharon &data->reorder_buf[i]; 2437dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2438dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2439b915c101SSara Sharon 24400690405fSSara Sharon spin_lock_bh(&reorder_buf->lock); 24410690405fSSara Sharon if (likely(!reorder_buf->num_stored)) { 24420690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 2443b915c101SSara Sharon continue; 24440690405fSSara Sharon } 2445b915c101SSara Sharon 2446b915c101SSara Sharon /* 2447b915c101SSara Sharon * This shouldn't happen in regular DELBA since the internal 2448b915c101SSara Sharon * delBA notification should trigger a release of all frames in 2449b915c101SSara Sharon * the reorder buffer. 2450b915c101SSara Sharon */ 2451b915c101SSara Sharon WARN_ON(1); 2452b915c101SSara Sharon 2453b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2454dfdddd92SJohannes Berg __skb_queue_purge(&entries[j].e.frames); 24550690405fSSara Sharon /* 24560690405fSSara Sharon * Prevent timer re-arm. This prevents a very far fetched case 24570690405fSSara Sharon * where we timed out on the notification. There may be prior 24580690405fSSara Sharon * RX frames pending in the RX queue before the notification 24590690405fSSara Sharon * that might get processed between now and the actual deletion 24600690405fSSara Sharon * and we would re-arm the timer although we are deleting the 24610690405fSSara Sharon * reorder buffer. 24620690405fSSara Sharon */ 24630690405fSSara Sharon reorder_buf->removed = true; 24640690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 24650690405fSSara Sharon del_timer_sync(&reorder_buf->reorder_timer); 2466b915c101SSara Sharon } 2467b915c101SSara Sharon } 2468b915c101SSara Sharon 2469b915c101SSara Sharon static void iwl_mvm_init_reorder_buffer(struct iwl_mvm *mvm, 2470b915c101SSara Sharon struct iwl_mvm_baid_data *data, 2471514c3069SLuca Coelho u16 ssn, u16 buf_size) 2472b915c101SSara Sharon { 2473b915c101SSara Sharon int i; 2474b915c101SSara Sharon 2475b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2476b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2477b915c101SSara Sharon &data->reorder_buf[i]; 2478dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2479dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2480b915c101SSara Sharon int j; 2481b915c101SSara Sharon 2482b915c101SSara Sharon reorder_buf->num_stored = 0; 2483b915c101SSara Sharon reorder_buf->head_sn = ssn; 2484b915c101SSara Sharon reorder_buf->buf_size = buf_size; 24850690405fSSara Sharon /* rx reorder timer */ 24868cef5344SKees Cook timer_setup(&reorder_buf->reorder_timer, 24878cef5344SKees Cook iwl_mvm_reorder_timer_expired, 0); 24880690405fSSara Sharon spin_lock_init(&reorder_buf->lock); 24890690405fSSara Sharon reorder_buf->mvm = mvm; 2490b915c101SSara Sharon reorder_buf->queue = i; 24915d43eab6SSara Sharon reorder_buf->valid = false; 2492b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2493dfdddd92SJohannes Berg __skb_queue_head_init(&entries[j].e.frames); 2494b915c101SSara Sharon } 249510b2b201SSara Sharon } 249610b2b201SSara Sharon 2497e705c121SKalle Valo int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2498514c3069SLuca Coelho int tid, u16 ssn, bool start, u16 buf_size, u16 timeout) 2499e705c121SKalle Valo { 2500e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2501e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 250210b2b201SSara Sharon struct iwl_mvm_baid_data *baid_data = NULL; 2503e705c121SKalle Valo int ret; 2504e705c121SKalle Valo u32 status; 2505e705c121SKalle Valo 2506e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2507e705c121SKalle Valo 2508e705c121SKalle Valo if (start && mvm->rx_ba_sessions >= IWL_MAX_RX_BA_SESSIONS) { 2509e705c121SKalle Valo IWL_WARN(mvm, "Not enough RX BA SESSIONS\n"); 2510e705c121SKalle Valo return -ENOSPC; 2511e705c121SKalle Valo } 2512e705c121SKalle Valo 251310b2b201SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && start) { 2514dfdddd92SJohannes Berg u16 reorder_buf_size = buf_size * sizeof(baid_data->entries[0]); 2515dfdddd92SJohannes Berg 2516dfdddd92SJohannes Berg /* sparse doesn't like the __align() so don't check */ 2517dfdddd92SJohannes Berg #ifndef __CHECKER__ 2518dfdddd92SJohannes Berg /* 2519dfdddd92SJohannes Berg * The division below will be OK if either the cache line size 2520dfdddd92SJohannes Berg * can be divided by the entry size (ALIGN will round up) or if 2521dfdddd92SJohannes Berg * if the entry size can be divided by the cache line size, in 2522dfdddd92SJohannes Berg * which case the ALIGN() will do nothing. 2523dfdddd92SJohannes Berg */ 2524dfdddd92SJohannes Berg BUILD_BUG_ON(SMP_CACHE_BYTES % sizeof(baid_data->entries[0]) && 2525dfdddd92SJohannes Berg sizeof(baid_data->entries[0]) % SMP_CACHE_BYTES); 2526dfdddd92SJohannes Berg #endif 2527dfdddd92SJohannes Berg 2528dfdddd92SJohannes Berg /* 2529dfdddd92SJohannes Berg * Upward align the reorder buffer size to fill an entire cache 2530dfdddd92SJohannes Berg * line for each queue, to avoid sharing cache lines between 2531dfdddd92SJohannes Berg * different queues. 2532dfdddd92SJohannes Berg */ 2533dfdddd92SJohannes Berg reorder_buf_size = ALIGN(reorder_buf_size, SMP_CACHE_BYTES); 2534dfdddd92SJohannes Berg 253510b2b201SSara Sharon /* 253610b2b201SSara Sharon * Allocate here so if allocation fails we can bail out early 253710b2b201SSara Sharon * before starting the BA session in the firmware 253810b2b201SSara Sharon */ 2539b915c101SSara Sharon baid_data = kzalloc(sizeof(*baid_data) + 2540b915c101SSara Sharon mvm->trans->num_rx_queues * 2541dfdddd92SJohannes Berg reorder_buf_size, 2542b915c101SSara Sharon GFP_KERNEL); 254310b2b201SSara Sharon if (!baid_data) 254410b2b201SSara Sharon return -ENOMEM; 2545dfdddd92SJohannes Berg 2546dfdddd92SJohannes Berg /* 2547dfdddd92SJohannes Berg * This division is why we need the above BUILD_BUG_ON(), 2548dfdddd92SJohannes Berg * if that doesn't hold then this will not be right. 2549dfdddd92SJohannes Berg */ 2550dfdddd92SJohannes Berg baid_data->entries_per_queue = 2551dfdddd92SJohannes Berg reorder_buf_size / sizeof(baid_data->entries[0]); 255210b2b201SSara Sharon } 255310b2b201SSara Sharon 2554e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 2555e705c121SKalle Valo cmd.sta_id = mvm_sta->sta_id; 2556e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 2557e705c121SKalle Valo if (start) { 2558e705c121SKalle Valo cmd.add_immediate_ba_tid = (u8) tid; 2559e705c121SKalle Valo cmd.add_immediate_ba_ssn = cpu_to_le16(ssn); 2560514c3069SLuca Coelho cmd.rx_ba_window = cpu_to_le16(buf_size); 2561e705c121SKalle Valo } else { 2562e705c121SKalle Valo cmd.remove_immediate_ba_tid = (u8) tid; 2563e705c121SKalle Valo } 2564e705c121SKalle Valo cmd.modify_mask = start ? STA_MODIFY_ADD_BA_TID : 2565e705c121SKalle Valo STA_MODIFY_REMOVE_BA_TID; 2566e705c121SKalle Valo 2567e705c121SKalle Valo status = ADD_STA_SUCCESS; 2568854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 2569854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 2570e705c121SKalle Valo &cmd, &status); 2571e705c121SKalle Valo if (ret) 257210b2b201SSara Sharon goto out_free; 2573e705c121SKalle Valo 2574837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 2575e705c121SKalle Valo case ADD_STA_SUCCESS: 257635263a03SSara Sharon IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n", 2577e705c121SKalle Valo start ? "start" : "stopp"); 2578e705c121SKalle Valo break; 2579e705c121SKalle Valo case ADD_STA_IMMEDIATE_BA_FAILURE: 2580e705c121SKalle Valo IWL_WARN(mvm, "RX BA Session refused by fw\n"); 2581e705c121SKalle Valo ret = -ENOSPC; 2582e705c121SKalle Valo break; 2583e705c121SKalle Valo default: 2584e705c121SKalle Valo ret = -EIO; 2585e705c121SKalle Valo IWL_ERR(mvm, "RX BA Session failed %sing, status 0x%x\n", 2586e705c121SKalle Valo start ? "start" : "stopp", status); 2587e705c121SKalle Valo break; 2588e705c121SKalle Valo } 2589e705c121SKalle Valo 259010b2b201SSara Sharon if (ret) 259110b2b201SSara Sharon goto out_free; 259210b2b201SSara Sharon 259310b2b201SSara Sharon if (start) { 259410b2b201SSara Sharon u8 baid; 259510b2b201SSara Sharon 2596e705c121SKalle Valo mvm->rx_ba_sessions++; 259710b2b201SSara Sharon 259810b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 259910b2b201SSara Sharon return 0; 260010b2b201SSara Sharon 260110b2b201SSara Sharon if (WARN_ON(!(status & IWL_ADD_STA_BAID_VALID_MASK))) { 260210b2b201SSara Sharon ret = -EINVAL; 260310b2b201SSara Sharon goto out_free; 260410b2b201SSara Sharon } 260510b2b201SSara Sharon baid = (u8)((status & IWL_ADD_STA_BAID_MASK) >> 260610b2b201SSara Sharon IWL_ADD_STA_BAID_SHIFT); 260710b2b201SSara Sharon baid_data->baid = baid; 260810b2b201SSara Sharon baid_data->timeout = timeout; 260910b2b201SSara Sharon baid_data->last_rx = jiffies; 26108cef5344SKees Cook baid_data->rcu_ptr = &mvm->baid_map[baid]; 26118cef5344SKees Cook timer_setup(&baid_data->session_timer, 26128cef5344SKees Cook iwl_mvm_rx_agg_session_expired, 0); 261310b2b201SSara Sharon baid_data->mvm = mvm; 261410b2b201SSara Sharon baid_data->tid = tid; 261510b2b201SSara Sharon baid_data->sta_id = mvm_sta->sta_id; 261610b2b201SSara Sharon 261710b2b201SSara Sharon mvm_sta->tid_to_baid[tid] = baid; 261810b2b201SSara Sharon if (timeout) 261910b2b201SSara Sharon mod_timer(&baid_data->session_timer, 262010b2b201SSara Sharon TU_TO_EXP_TIME(timeout * 2)); 262110b2b201SSara Sharon 26223f1c4c58SSara Sharon iwl_mvm_init_reorder_buffer(mvm, baid_data, ssn, buf_size); 262310b2b201SSara Sharon /* 262410b2b201SSara Sharon * protect the BA data with RCU to cover a case where our 262510b2b201SSara Sharon * internal RX sync mechanism will timeout (not that it's 262610b2b201SSara Sharon * supposed to happen) and we will free the session data while 262710b2b201SSara Sharon * RX is being processed in parallel 262810b2b201SSara Sharon */ 262935263a03SSara Sharon IWL_DEBUG_HT(mvm, "Sta %d(%d) is assigned to BAID %d\n", 263035263a03SSara Sharon mvm_sta->sta_id, tid, baid); 263110b2b201SSara Sharon WARN_ON(rcu_access_pointer(mvm->baid_map[baid])); 263210b2b201SSara Sharon rcu_assign_pointer(mvm->baid_map[baid], baid_data); 263360dec523SSara Sharon } else { 263410b2b201SSara Sharon u8 baid = mvm_sta->tid_to_baid[tid]; 263510b2b201SSara Sharon 263660dec523SSara Sharon if (mvm->rx_ba_sessions > 0) 2637e705c121SKalle Valo /* check that restart flow didn't zero the counter */ 2638e705c121SKalle Valo mvm->rx_ba_sessions--; 263910b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 264010b2b201SSara Sharon return 0; 2641e705c121SKalle Valo 264210b2b201SSara Sharon if (WARN_ON(baid == IWL_RX_REORDER_DATA_INVALID_BAID)) 264310b2b201SSara Sharon return -EINVAL; 264410b2b201SSara Sharon 264510b2b201SSara Sharon baid_data = rcu_access_pointer(mvm->baid_map[baid]); 264610b2b201SSara Sharon if (WARN_ON(!baid_data)) 264710b2b201SSara Sharon return -EINVAL; 264810b2b201SSara Sharon 264910b2b201SSara Sharon /* synchronize all rx queues so we can safely delete */ 2650b915c101SSara Sharon iwl_mvm_free_reorder(mvm, baid_data); 265110b2b201SSara Sharon del_timer_sync(&baid_data->session_timer); 265210b2b201SSara Sharon RCU_INIT_POINTER(mvm->baid_map[baid], NULL); 265310b2b201SSara Sharon kfree_rcu(baid_data, rcu_head); 265435263a03SSara Sharon IWL_DEBUG_HT(mvm, "BAID %d is free\n", baid); 265510b2b201SSara Sharon } 265610b2b201SSara Sharon return 0; 265710b2b201SSara Sharon 265810b2b201SSara Sharon out_free: 265910b2b201SSara Sharon kfree(baid_data); 2660e705c121SKalle Valo return ret; 2661e705c121SKalle Valo } 2662e705c121SKalle Valo 26639794c64fSLiad Kaufman int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2664e705c121SKalle Valo int tid, u8 queue, bool start) 2665e705c121SKalle Valo { 2666e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2667e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 2668e705c121SKalle Valo int ret; 2669e705c121SKalle Valo u32 status; 2670e705c121SKalle Valo 2671e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2672e705c121SKalle Valo 2673e705c121SKalle Valo if (start) { 2674e705c121SKalle Valo mvm_sta->tfd_queue_msk |= BIT(queue); 2675e705c121SKalle Valo mvm_sta->tid_disable_agg &= ~BIT(tid); 2676e705c121SKalle Valo } else { 2677cf961e16SLiad Kaufman /* In DQA-mode the queue isn't removed on agg termination */ 2678e705c121SKalle Valo mvm_sta->tid_disable_agg |= BIT(tid); 2679e705c121SKalle Valo } 2680e705c121SKalle Valo 2681e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 2682e705c121SKalle Valo cmd.sta_id = mvm_sta->sta_id; 2683e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 2684bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) 2685bb49701bSSara Sharon cmd.modify_mask = STA_MODIFY_QUEUES; 2686bb49701bSSara Sharon cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 2687e705c121SKalle Valo cmd.tfd_queue_msk = cpu_to_le32(mvm_sta->tfd_queue_msk); 2688e705c121SKalle Valo cmd.tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg); 2689e705c121SKalle Valo 2690e705c121SKalle Valo status = ADD_STA_SUCCESS; 2691854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 2692854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 2693e705c121SKalle Valo &cmd, &status); 2694e705c121SKalle Valo if (ret) 2695e705c121SKalle Valo return ret; 2696e705c121SKalle Valo 2697837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 2698e705c121SKalle Valo case ADD_STA_SUCCESS: 2699e705c121SKalle Valo break; 2700e705c121SKalle Valo default: 2701e705c121SKalle Valo ret = -EIO; 2702e705c121SKalle Valo IWL_ERR(mvm, "TX BA Session failed %sing, status 0x%x\n", 2703e705c121SKalle Valo start ? "start" : "stopp", status); 2704e705c121SKalle Valo break; 2705e705c121SKalle Valo } 2706e705c121SKalle Valo 2707e705c121SKalle Valo return ret; 2708e705c121SKalle Valo } 2709e705c121SKalle Valo 2710e705c121SKalle Valo const u8 tid_to_mac80211_ac[] = { 2711e705c121SKalle Valo IEEE80211_AC_BE, 2712e705c121SKalle Valo IEEE80211_AC_BK, 2713e705c121SKalle Valo IEEE80211_AC_BK, 2714e705c121SKalle Valo IEEE80211_AC_BE, 2715e705c121SKalle Valo IEEE80211_AC_VI, 2716e705c121SKalle Valo IEEE80211_AC_VI, 2717e705c121SKalle Valo IEEE80211_AC_VO, 2718e705c121SKalle Valo IEEE80211_AC_VO, 27199794c64fSLiad Kaufman IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 2720e705c121SKalle Valo }; 2721e705c121SKalle Valo 2722e705c121SKalle Valo static const u8 tid_to_ucode_ac[] = { 2723e705c121SKalle Valo AC_BE, 2724e705c121SKalle Valo AC_BK, 2725e705c121SKalle Valo AC_BK, 2726e705c121SKalle Valo AC_BE, 2727e705c121SKalle Valo AC_VI, 2728e705c121SKalle Valo AC_VI, 2729e705c121SKalle Valo AC_VO, 2730e705c121SKalle Valo AC_VO, 2731e705c121SKalle Valo }; 2732e705c121SKalle Valo 2733e705c121SKalle Valo int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2734e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 *ssn) 2735e705c121SKalle Valo { 2736e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2737e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 2738dd32162dSLiad Kaufman u16 normalized_ssn; 2739b0d795a9SMordechay Goodstein u16 txq_id; 2740e705c121SKalle Valo int ret; 2741e705c121SKalle Valo 2742e705c121SKalle Valo if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT)) 2743e705c121SKalle Valo return -EINVAL; 2744e705c121SKalle Valo 2745bd800e41SNaftali Goldstein if (mvmsta->tid_data[tid].state != IWL_AGG_QUEUED && 2746bd800e41SNaftali Goldstein mvmsta->tid_data[tid].state != IWL_AGG_OFF) { 2747bd800e41SNaftali Goldstein IWL_ERR(mvm, 2748bd800e41SNaftali Goldstein "Start AGG when state is not IWL_AGG_QUEUED or IWL_AGG_OFF %d!\n", 2749e705c121SKalle Valo mvmsta->tid_data[tid].state); 2750e705c121SKalle Valo return -ENXIO; 2751e705c121SKalle Valo } 2752e705c121SKalle Valo 2753e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2754e705c121SKalle Valo 2755bd8f3fc6SLiad Kaufman if (mvmsta->tid_data[tid].txq_id == IWL_MVM_INVALID_QUEUE && 2756bd8f3fc6SLiad Kaufman iwl_mvm_has_new_tx_api(mvm)) { 2757bd8f3fc6SLiad Kaufman u8 ac = tid_to_mac80211_ac[tid]; 2758bd8f3fc6SLiad Kaufman 2759bd8f3fc6SLiad Kaufman ret = iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 2760bd8f3fc6SLiad Kaufman if (ret) 2761bd8f3fc6SLiad Kaufman return ret; 2762bd8f3fc6SLiad Kaufman } 2763bd8f3fc6SLiad Kaufman 2764e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2765e705c121SKalle Valo 2766e705c121SKalle Valo /* possible race condition - we entered D0i3 while starting agg */ 2767e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) { 2768e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2769e705c121SKalle Valo IWL_ERR(mvm, "Entered D0i3 while starting Tx agg\n"); 2770e705c121SKalle Valo return -EIO; 2771e705c121SKalle Valo } 2772e705c121SKalle Valo 2773cf961e16SLiad Kaufman /* 2774cf961e16SLiad Kaufman * Note the possible cases: 27754a6d2e52SAvraham Stern * 1. An enabled TXQ - TXQ needs to become agg'ed 27764a6d2e52SAvraham Stern * 2. The TXQ hasn't yet been enabled, so find a free one and mark 27774a6d2e52SAvraham Stern * it as reserved 2778cf961e16SLiad Kaufman */ 2779cf961e16SLiad Kaufman txq_id = mvmsta->tid_data[tid].txq_id; 278034e10860SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) { 2781b0d795a9SMordechay Goodstein ret = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 2782c8f54701SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 2783c8f54701SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 2784b0d795a9SMordechay Goodstein if (ret < 0) { 2785e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate agg queue\n"); 2786f3f240f9SJohannes Berg goto out; 2787e705c121SKalle Valo } 2788cf961e16SLiad Kaufman 2789b0d795a9SMordechay Goodstein txq_id = ret; 2790b0d795a9SMordechay Goodstein 2791cf961e16SLiad Kaufman /* TXQ hasn't yet been enabled, so mark it only as reserved */ 2792cf961e16SLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_RESERVED; 2793b0d795a9SMordechay Goodstein } else if (WARN_ON(txq_id >= IWL_MAX_HW_QUEUES)) { 2794b0d795a9SMordechay Goodstein ret = -ENXIO; 2795b0d795a9SMordechay Goodstein IWL_ERR(mvm, "tid_id %d out of range (0, %d)!\n", 2796b0d795a9SMordechay Goodstein tid, IWL_MAX_HW_QUEUES - 1); 2797b0d795a9SMordechay Goodstein goto out; 2798b0d795a9SMordechay Goodstein 27994a6d2e52SAvraham Stern } else if (unlikely(mvm->queue_info[txq_id].status == 28004a6d2e52SAvraham Stern IWL_MVM_QUEUE_SHARED)) { 28014a6d2e52SAvraham Stern ret = -ENXIO; 28024a6d2e52SAvraham Stern IWL_DEBUG_TX_QUEUES(mvm, 28034a6d2e52SAvraham Stern "Can't start tid %d agg on shared queue!\n", 28044a6d2e52SAvraham Stern tid); 2805f3f240f9SJohannes Berg goto out; 2806cf961e16SLiad Kaufman } 28079f9af3d7SLiad Kaufman 2808cf961e16SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 2809cf961e16SLiad Kaufman "AGG for tid %d will be on queue #%d\n", 2810cf961e16SLiad Kaufman tid, txq_id); 2811cf961e16SLiad Kaufman 2812e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 2813e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 2814e705c121SKalle Valo tid_data->txq_id = txq_id; 2815e705c121SKalle Valo *ssn = tid_data->ssn; 2816e705c121SKalle Valo 2817e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 2818e705c121SKalle Valo "Start AGG: sta %d tid %d queue %d - ssn = %d, next_recl = %d\n", 2819e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->ssn, 2820e705c121SKalle Valo tid_data->next_reclaimed); 2821e705c121SKalle Valo 2822dd32162dSLiad Kaufman /* 28232f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 2824dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 2825dd32162dSLiad Kaufman */ 2826dd32162dSLiad Kaufman normalized_ssn = tid_data->ssn; 2827dd32162dSLiad Kaufman if (mvm->trans->cfg->gen2) 2828dd32162dSLiad Kaufman normalized_ssn &= 0xff; 2829dd32162dSLiad Kaufman 2830dd32162dSLiad Kaufman if (normalized_ssn == tid_data->next_reclaimed) { 2831e705c121SKalle Valo tid_data->state = IWL_AGG_STARTING; 2832e705c121SKalle Valo ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); 2833e705c121SKalle Valo } else { 2834e705c121SKalle Valo tid_data->state = IWL_EMPTYING_HW_QUEUE_ADDBA; 2835e705c121SKalle Valo } 2836e705c121SKalle Valo 2837e705c121SKalle Valo ret = 0; 2838e705c121SKalle Valo 28399f9af3d7SLiad Kaufman out: 2840e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2841e705c121SKalle Valo 2842e705c121SKalle Valo return ret; 2843e705c121SKalle Valo } 2844e705c121SKalle Valo 2845e705c121SKalle Valo int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2846514c3069SLuca Coelho struct ieee80211_sta *sta, u16 tid, u16 buf_size, 2847bb81bb68SEmmanuel Grumbach bool amsdu) 2848e705c121SKalle Valo { 2849e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2850e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2851e705c121SKalle Valo unsigned int wdg_timeout = 2852e705c121SKalle Valo iwl_mvm_get_wd_timeout(mvm, vif, sta->tdls, false); 2853eea76c36SEmmanuel Grumbach int queue, ret; 2854cf961e16SLiad Kaufman bool alloc_queue = true; 28559f9af3d7SLiad Kaufman enum iwl_mvm_queue_status queue_status; 2856e705c121SKalle Valo u16 ssn; 2857e705c121SKalle Valo 2858eea76c36SEmmanuel Grumbach struct iwl_trans_txq_scd_cfg cfg = { 2859eea76c36SEmmanuel Grumbach .sta_id = mvmsta->sta_id, 2860eea76c36SEmmanuel Grumbach .tid = tid, 2861eea76c36SEmmanuel Grumbach .frame_limit = buf_size, 2862eea76c36SEmmanuel Grumbach .aggregate = true, 2863eea76c36SEmmanuel Grumbach }; 2864eea76c36SEmmanuel Grumbach 2865ecaf71deSGregory Greenman /* 2866ecaf71deSGregory Greenman * When FW supports TLC_OFFLOAD, it also implements Tx aggregation 2867ecaf71deSGregory Greenman * manager, so this function should never be called in this case. 2868ecaf71deSGregory Greenman */ 28694243edb4SEmmanuel Grumbach if (WARN_ON_ONCE(iwl_mvm_has_tlc_offload(mvm))) 2870ecaf71deSGregory Greenman return -EINVAL; 2871ecaf71deSGregory Greenman 2872e705c121SKalle Valo BUILD_BUG_ON((sizeof(mvmsta->agg_tids) * BITS_PER_BYTE) 2873e705c121SKalle Valo != IWL_MAX_TID_COUNT); 2874e705c121SKalle Valo 2875e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2876e705c121SKalle Valo ssn = tid_data->ssn; 2877e705c121SKalle Valo queue = tid_data->txq_id; 2878e705c121SKalle Valo tid_data->state = IWL_AGG_ON; 2879e705c121SKalle Valo mvmsta->agg_tids |= BIT(tid); 2880e705c121SKalle Valo tid_data->ssn = 0xffff; 2881bb81bb68SEmmanuel Grumbach tid_data->amsdu_in_ampdu_allowed = amsdu; 2882e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2883e705c121SKalle Valo 288434e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 288534e10860SSara Sharon /* 28860ec9257bSSara Sharon * If there is no queue for this tid, iwl_mvm_sta_tx_agg_start() 28870ec9257bSSara Sharon * would have failed, so if we are here there is no need to 28880ec9257bSSara Sharon * allocate a queue. 28890ec9257bSSara Sharon * However, if aggregation size is different than the default 28900ec9257bSSara Sharon * size, the scheduler should be reconfigured. 28910ec9257bSSara Sharon * We cannot do this with the new TX API, so return unsupported 28920ec9257bSSara Sharon * for now, until it will be offloaded to firmware.. 28930ec9257bSSara Sharon * Note that if SCD default value changes - this condition 28940ec9257bSSara Sharon * should be updated as well. 289534e10860SSara Sharon */ 28960ec9257bSSara Sharon if (buf_size < IWL_FRAME_LIMIT) 289734e10860SSara Sharon return -ENOTSUPP; 289834e10860SSara Sharon 289934e10860SSara Sharon ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 290034e10860SSara Sharon if (ret) 290134e10860SSara Sharon return -EIO; 290234e10860SSara Sharon goto out; 290334e10860SSara Sharon } 290434e10860SSara Sharon 2905eea76c36SEmmanuel Grumbach cfg.fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 2906e705c121SKalle Valo 29079f9af3d7SLiad Kaufman queue_status = mvm->queue_info[queue].status; 29089f9af3d7SLiad Kaufman 2909cf961e16SLiad Kaufman /* Maybe there is no need to even alloc a queue... */ 2910cf961e16SLiad Kaufman if (mvm->queue_info[queue].status == IWL_MVM_QUEUE_READY) 2911cf961e16SLiad Kaufman alloc_queue = false; 2912cf961e16SLiad Kaufman 2913cf961e16SLiad Kaufman /* 2914cf961e16SLiad Kaufman * Only reconfig the SCD for the queue if the window size has 2915cf961e16SLiad Kaufman * changed from current (become smaller) 2916cf961e16SLiad Kaufman */ 29170ec9257bSSara Sharon if (!alloc_queue && buf_size < IWL_FRAME_LIMIT) { 2918cf961e16SLiad Kaufman /* 2919cf961e16SLiad Kaufman * If reconfiguring an existing queue, it first must be 2920cf961e16SLiad Kaufman * drained 2921cf961e16SLiad Kaufman */ 2922a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 2923cf961e16SLiad Kaufman BIT(queue)); 2924cf961e16SLiad Kaufman if (ret) { 2925cf961e16SLiad Kaufman IWL_ERR(mvm, 2926cf961e16SLiad Kaufman "Error draining queue before reconfig\n"); 2927cf961e16SLiad Kaufman return ret; 2928cf961e16SLiad Kaufman } 2929cf961e16SLiad Kaufman 2930cf961e16SLiad Kaufman ret = iwl_mvm_reconfig_scd(mvm, queue, cfg.fifo, 2931cf961e16SLiad Kaufman mvmsta->sta_id, tid, 2932cf961e16SLiad Kaufman buf_size, ssn); 2933cf961e16SLiad Kaufman if (ret) { 2934cf961e16SLiad Kaufman IWL_ERR(mvm, 2935cf961e16SLiad Kaufman "Error reconfiguring TXQ #%d\n", queue); 2936cf961e16SLiad Kaufman return ret; 2937cf961e16SLiad Kaufman } 2938cf961e16SLiad Kaufman } 2939cf961e16SLiad Kaufman 2940cf961e16SLiad Kaufman if (alloc_queue) 2941cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, queue, ssn, 2942cf961e16SLiad Kaufman &cfg, wdg_timeout); 2943e705c121SKalle Valo 29449f9af3d7SLiad Kaufman /* Send ADD_STA command to enable aggs only if the queue isn't shared */ 29459f9af3d7SLiad Kaufman if (queue_status != IWL_MVM_QUEUE_SHARED) { 2946e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 2947e705c121SKalle Valo if (ret) 2948e705c121SKalle Valo return -EIO; 29499f9af3d7SLiad Kaufman } 2950e705c121SKalle Valo 2951e705c121SKalle Valo /* No need to mark as reserved */ 2952cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 2953e705c121SKalle Valo 295434e10860SSara Sharon out: 2955e705c121SKalle Valo /* 2956e705c121SKalle Valo * Even though in theory the peer could have different 2957e705c121SKalle Valo * aggregation reorder buffer sizes for different sessions, 2958e705c121SKalle Valo * our ucode doesn't allow for that and has a global limit 2959e705c121SKalle Valo * for each station. Therefore, use the minimum of all the 2960e705c121SKalle Valo * aggregation sessions and our default value. 2961e705c121SKalle Valo */ 2962e705c121SKalle Valo mvmsta->max_agg_bufsize = 2963e705c121SKalle Valo min(mvmsta->max_agg_bufsize, buf_size); 2964ecaf71deSGregory Greenman mvmsta->lq_sta.rs_drv.lq.agg_frame_cnt_limit = mvmsta->max_agg_bufsize; 2965e705c121SKalle Valo 2966e705c121SKalle Valo IWL_DEBUG_HT(mvm, "Tx aggregation enabled on ra = %pM tid = %d\n", 2967e705c121SKalle Valo sta->addr, tid); 2968e705c121SKalle Valo 2969ecaf71deSGregory Greenman return iwl_mvm_send_lq_cmd(mvm, &mvmsta->lq_sta.rs_drv.lq, false); 2970e705c121SKalle Valo } 2971e705c121SKalle Valo 297234e10860SSara Sharon static void iwl_mvm_unreserve_agg_queue(struct iwl_mvm *mvm, 297334e10860SSara Sharon struct iwl_mvm_sta *mvmsta, 29744b387906SAvraham Stern struct iwl_mvm_tid_data *tid_data) 297534e10860SSara Sharon { 29764b387906SAvraham Stern u16 txq_id = tid_data->txq_id; 29774b387906SAvraham Stern 2978f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 2979f3f240f9SJohannes Berg 298034e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 298134e10860SSara Sharon return; 298234e10860SSara Sharon 298334e10860SSara Sharon /* 298434e10860SSara Sharon * The TXQ is marked as reserved only if no traffic came through yet 298534e10860SSara Sharon * This means no traffic has been sent on this TID (agg'd or not), so 298634e10860SSara Sharon * we no longer have use for the queue. Since it hasn't even been 298734e10860SSara Sharon * allocated through iwl_mvm_enable_txq, so we can just mark it back as 298834e10860SSara Sharon * free. 298934e10860SSara Sharon */ 29904b387906SAvraham Stern if (mvm->queue_info[txq_id].status == IWL_MVM_QUEUE_RESERVED) { 299134e10860SSara Sharon mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_FREE; 29924b387906SAvraham Stern tid_data->txq_id = IWL_MVM_INVALID_QUEUE; 29934b387906SAvraham Stern } 299434e10860SSara Sharon } 299534e10860SSara Sharon 2996e705c121SKalle Valo int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2997e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 2998e705c121SKalle Valo { 2999e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3000e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3001e705c121SKalle Valo u16 txq_id; 3002e705c121SKalle Valo int err; 3003e705c121SKalle Valo 3004e705c121SKalle Valo /* 3005e705c121SKalle Valo * If mac80211 is cleaning its state, then say that we finished since 3006e705c121SKalle Valo * our state has been cleared anyway. 3007e705c121SKalle Valo */ 3008e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3009e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3010e705c121SKalle Valo return 0; 3011e705c121SKalle Valo } 3012e705c121SKalle Valo 3013e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3014e705c121SKalle Valo 3015e705c121SKalle Valo txq_id = tid_data->txq_id; 3016e705c121SKalle Valo 3017e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Stop AGG: sta %d tid %d q %d state %d\n", 3018e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 3019e705c121SKalle Valo 3020e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3021e705c121SKalle Valo 30224b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3023e705c121SKalle Valo 3024e705c121SKalle Valo switch (tid_data->state) { 3025e705c121SKalle Valo case IWL_AGG_ON: 3026e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3027e705c121SKalle Valo 3028e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 3029e705c121SKalle Valo "ssn = %d, next_recl = %d\n", 3030e705c121SKalle Valo tid_data->ssn, tid_data->next_reclaimed); 3031e705c121SKalle Valo 3032e705c121SKalle Valo tid_data->ssn = 0xffff; 3033e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3034e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3035e705c121SKalle Valo 3036e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3037e705c121SKalle Valo 3038e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3039e705c121SKalle Valo return 0; 3040e705c121SKalle Valo case IWL_AGG_STARTING: 3041e705c121SKalle Valo case IWL_EMPTYING_HW_QUEUE_ADDBA: 3042e705c121SKalle Valo /* 3043e705c121SKalle Valo * The agg session has been stopped before it was set up. This 3044e705c121SKalle Valo * can happen when the AddBA timer times out for example. 3045e705c121SKalle Valo */ 3046e705c121SKalle Valo 3047e705c121SKalle Valo /* No barriers since we are under mutex */ 3048e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3049e705c121SKalle Valo 3050e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3051e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3052e705c121SKalle Valo err = 0; 3053e705c121SKalle Valo break; 3054e705c121SKalle Valo default: 3055e705c121SKalle Valo IWL_ERR(mvm, 3056e705c121SKalle Valo "Stopping AGG while state not ON or starting for %d on %d (%d)\n", 3057e705c121SKalle Valo mvmsta->sta_id, tid, tid_data->state); 3058e705c121SKalle Valo IWL_ERR(mvm, 3059e705c121SKalle Valo "\ttid_data->txq_id = %d\n", tid_data->txq_id); 3060e705c121SKalle Valo err = -EINVAL; 3061e705c121SKalle Valo } 3062e705c121SKalle Valo 3063e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3064e705c121SKalle Valo 3065e705c121SKalle Valo return err; 3066e705c121SKalle Valo } 3067e705c121SKalle Valo 3068e705c121SKalle Valo int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3069e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3070e705c121SKalle Valo { 3071e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3072e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3073e705c121SKalle Valo u16 txq_id; 3074e705c121SKalle Valo enum iwl_mvm_agg_state old_state; 3075e705c121SKalle Valo 3076e705c121SKalle Valo /* 3077e705c121SKalle Valo * First set the agg state to OFF to avoid calling 3078e705c121SKalle Valo * ieee80211_stop_tx_ba_cb in iwl_mvm_check_ratid_empty. 3079e705c121SKalle Valo */ 3080e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3081e705c121SKalle Valo txq_id = tid_data->txq_id; 3082e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Flush AGG: sta %d tid %d q %d state %d\n", 3083e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 3084e705c121SKalle Valo old_state = tid_data->state; 3085e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3086e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3087e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3088e705c121SKalle Valo 30894b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3090e705c121SKalle Valo 3091e705c121SKalle Valo if (old_state >= IWL_AGG_ON) { 3092e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, true); 3093d167e81aSMordechai Goodstein 3094d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) { 3095d167e81aSMordechai Goodstein if (iwl_mvm_flush_sta_tids(mvm, mvmsta->sta_id, 3096d167e81aSMordechai Goodstein BIT(tid), 0)) 3097d167e81aSMordechai Goodstein IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 3098d167e81aSMordechai Goodstein iwl_trans_wait_txq_empty(mvm->trans, txq_id); 3099d167e81aSMordechai Goodstein } else { 3100e705c121SKalle Valo if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id), 0)) 3101e705c121SKalle Valo IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 31020b90964aSSara Sharon iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(txq_id)); 3103d167e81aSMordechai Goodstein } 3104d6d517b7SSara Sharon 3105e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, false); 3106e705c121SKalle Valo 3107e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3108e705c121SKalle Valo } 3109e705c121SKalle Valo 3110e705c121SKalle Valo return 0; 3111e705c121SKalle Valo } 3112e705c121SKalle Valo 3113e705c121SKalle Valo static int iwl_mvm_set_fw_key_idx(struct iwl_mvm *mvm) 3114e705c121SKalle Valo { 3115e705c121SKalle Valo int i, max = -1, max_offs = -1; 3116e705c121SKalle Valo 3117e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3118e705c121SKalle Valo 3119e705c121SKalle Valo /* Pick the unused key offset with the highest 'deleted' 3120e705c121SKalle Valo * counter. Every time a key is deleted, all the counters 3121e705c121SKalle Valo * are incremented and the one that was just deleted is 3122e705c121SKalle Valo * reset to zero. Thus, the highest counter is the one 3123e705c121SKalle Valo * that was deleted longest ago. Pick that one. 3124e705c121SKalle Valo */ 3125e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3126e705c121SKalle Valo if (test_bit(i, mvm->fw_key_table)) 3127e705c121SKalle Valo continue; 3128e705c121SKalle Valo if (mvm->fw_key_deleted[i] > max) { 3129e705c121SKalle Valo max = mvm->fw_key_deleted[i]; 3130e705c121SKalle Valo max_offs = i; 3131e705c121SKalle Valo } 3132e705c121SKalle Valo } 3133e705c121SKalle Valo 3134e705c121SKalle Valo if (max_offs < 0) 3135e705c121SKalle Valo return STA_KEY_IDX_INVALID; 3136e705c121SKalle Valo 3137e705c121SKalle Valo return max_offs; 3138e705c121SKalle Valo } 3139e705c121SKalle Valo 31405f7a1847SJohannes Berg static struct iwl_mvm_sta *iwl_mvm_get_key_sta(struct iwl_mvm *mvm, 31414615fd15SEmmanuel Grumbach struct ieee80211_vif *vif, 3142e705c121SKalle Valo struct ieee80211_sta *sta) 3143e705c121SKalle Valo { 3144e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3145e705c121SKalle Valo 31465f7a1847SJohannes Berg if (sta) 31475f7a1847SJohannes Berg return iwl_mvm_sta_from_mac80211(sta); 3148e705c121SKalle Valo 3149e705c121SKalle Valo /* 3150e705c121SKalle Valo * The device expects GTKs for station interfaces to be 3151e705c121SKalle Valo * installed as GTKs for the AP station. If we have no 3152e705c121SKalle Valo * station ID, then use AP's station ID. 3153e705c121SKalle Valo */ 3154e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 31550ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 31564615fd15SEmmanuel Grumbach u8 sta_id = mvmvif->ap_sta_id; 31574615fd15SEmmanuel Grumbach 31587d6a1ab6SEmmanuel Grumbach sta = rcu_dereference_check(mvm->fw_id_to_mac_id[sta_id], 31597d6a1ab6SEmmanuel Grumbach lockdep_is_held(&mvm->mutex)); 31607d6a1ab6SEmmanuel Grumbach 31614615fd15SEmmanuel Grumbach /* 31624615fd15SEmmanuel Grumbach * It is possible that the 'sta' parameter is NULL, 31634615fd15SEmmanuel Grumbach * for example when a GTK is removed - the sta_id will then 31644615fd15SEmmanuel Grumbach * be the AP ID, and no station was passed by mac80211. 31654615fd15SEmmanuel Grumbach */ 31667d6a1ab6SEmmanuel Grumbach if (IS_ERR_OR_NULL(sta)) 31677d6a1ab6SEmmanuel Grumbach return NULL; 31687d6a1ab6SEmmanuel Grumbach 31697d6a1ab6SEmmanuel Grumbach return iwl_mvm_sta_from_mac80211(sta); 31704615fd15SEmmanuel Grumbach } 3171e705c121SKalle Valo 31725f7a1847SJohannes Berg return NULL; 3173e705c121SKalle Valo } 3174e705c121SKalle Valo 3175e705c121SKalle Valo static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm, 317685aeb58cSDavid Spinadel u32 sta_id, 317745c458b4SSara Sharon struct ieee80211_key_conf *key, bool mcast, 31784615fd15SEmmanuel Grumbach u32 tkip_iv32, u16 *tkip_p1k, u32 cmd_flags, 31794883145aSEmmanuel Grumbach u8 key_offset, bool mfp) 3180e705c121SKalle Valo { 318145c458b4SSara Sharon union { 318245c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 318345c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd cmd; 318445c458b4SSara Sharon } u = {}; 3185e705c121SKalle Valo __le16 key_flags; 3186e705c121SKalle Valo int ret; 3187e705c121SKalle Valo u32 status; 3188e705c121SKalle Valo u16 keyidx; 318945c458b4SSara Sharon u64 pn = 0; 319045c458b4SSara Sharon int i, size; 319145c458b4SSara Sharon bool new_api = fw_has_api(&mvm->fw->ucode_capa, 319245c458b4SSara Sharon IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 3193e705c121SKalle Valo 319485aeb58cSDavid Spinadel if (sta_id == IWL_MVM_INVALID_STA) 319585aeb58cSDavid Spinadel return -EINVAL; 319685aeb58cSDavid Spinadel 319745c458b4SSara Sharon keyidx = (key->keyidx << STA_KEY_FLG_KEYID_POS) & 3198e705c121SKalle Valo STA_KEY_FLG_KEYID_MSK; 3199e705c121SKalle Valo key_flags = cpu_to_le16(keyidx); 3200e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_KEY_MAP); 3201e705c121SKalle Valo 320245c458b4SSara Sharon switch (key->cipher) { 3203e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 3204e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_TKIP); 320545c458b4SSara Sharon if (new_api) { 320645c458b4SSara Sharon memcpy((void *)&u.cmd.tx_mic_key, 320745c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], 320845c458b4SSara Sharon IWL_MIC_KEY_SIZE); 320945c458b4SSara Sharon 321045c458b4SSara Sharon memcpy((void *)&u.cmd.rx_mic_key, 321145c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], 321245c458b4SSara Sharon IWL_MIC_KEY_SIZE); 321345c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 321445c458b4SSara Sharon 321545c458b4SSara Sharon } else { 321645c458b4SSara Sharon u.cmd_v1.tkip_rx_tsc_byte2 = tkip_iv32; 3217e705c121SKalle Valo for (i = 0; i < 5; i++) 321845c458b4SSara Sharon u.cmd_v1.tkip_rx_ttak[i] = 321945c458b4SSara Sharon cpu_to_le16(tkip_p1k[i]); 322045c458b4SSara Sharon } 322145c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3222e705c121SKalle Valo break; 3223e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 3224e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_CCM); 322545c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 322645c458b4SSara Sharon if (new_api) 322745c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 3228e705c121SKalle Valo break; 3229e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 3230e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_13BYTES); 3231e705c121SKalle Valo /* fall through */ 3232e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 3233e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP); 323445c458b4SSara Sharon memcpy(u.cmd.common.key + 3, key->key, key->keylen); 3235e705c121SKalle Valo break; 32362a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 32372a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_KEY_32BYTES); 32382a53d166SAyala Beker /* fall through */ 32392a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 32402a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_GCMP); 324145c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 324245c458b4SSara Sharon if (new_api) 324345c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 32442a53d166SAyala Beker break; 3245e705c121SKalle Valo default: 3246e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_EXT); 324745c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3248e705c121SKalle Valo } 3249e705c121SKalle Valo 3250e705c121SKalle Valo if (mcast) 3251e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 32524883145aSEmmanuel Grumbach if (mfp) 32534883145aSEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MFP); 3254e705c121SKalle Valo 325545c458b4SSara Sharon u.cmd.common.key_offset = key_offset; 325645c458b4SSara Sharon u.cmd.common.key_flags = key_flags; 325785aeb58cSDavid Spinadel u.cmd.common.sta_id = sta_id; 325845c458b4SSara Sharon 325945c458b4SSara Sharon if (new_api) { 326045c458b4SSara Sharon u.cmd.transmit_seq_cnt = cpu_to_le64(pn); 326145c458b4SSara Sharon size = sizeof(u.cmd); 326245c458b4SSara Sharon } else { 326345c458b4SSara Sharon size = sizeof(u.cmd_v1); 326445c458b4SSara Sharon } 3265e705c121SKalle Valo 3266e705c121SKalle Valo status = ADD_STA_SUCCESS; 3267e705c121SKalle Valo if (cmd_flags & CMD_ASYNC) 326845c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA_KEY, CMD_ASYNC, size, 326945c458b4SSara Sharon &u.cmd); 3270e705c121SKalle Valo else 327145c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, 327245c458b4SSara Sharon &u.cmd, &status); 3273e705c121SKalle Valo 3274e705c121SKalle Valo switch (status) { 3275e705c121SKalle Valo case ADD_STA_SUCCESS: 3276e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "MODIFY_STA: set dynamic key passed\n"); 3277e705c121SKalle Valo break; 3278e705c121SKalle Valo default: 3279e705c121SKalle Valo ret = -EIO; 3280e705c121SKalle Valo IWL_ERR(mvm, "MODIFY_STA: set dynamic key failed\n"); 3281e705c121SKalle Valo break; 3282e705c121SKalle Valo } 3283e705c121SKalle Valo 3284e705c121SKalle Valo return ret; 3285e705c121SKalle Valo } 3286e705c121SKalle Valo 3287e705c121SKalle Valo static int iwl_mvm_send_sta_igtk(struct iwl_mvm *mvm, 3288e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3289e705c121SKalle Valo u8 sta_id, bool remove_key) 3290e705c121SKalle Valo { 3291e705c121SKalle Valo struct iwl_mvm_mgmt_mcast_key_cmd igtk_cmd = {}; 3292e705c121SKalle Valo 3293e705c121SKalle Valo /* verify the key details match the required command's expectations */ 32948e160ab8SAyala Beker if (WARN_ON((keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) || 32958e160ab8SAyala Beker (keyconf->keyidx != 4 && keyconf->keyidx != 5) || 32968e160ab8SAyala Beker (keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC && 32978e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_128 && 32988e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_256))) 32998e160ab8SAyala Beker return -EINVAL; 33008e160ab8SAyala Beker 33018e160ab8SAyala Beker if (WARN_ON(!iwl_mvm_has_new_rx_api(mvm) && 33028e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC)) 3303e705c121SKalle Valo return -EINVAL; 3304e705c121SKalle Valo 3305e705c121SKalle Valo igtk_cmd.key_id = cpu_to_le32(keyconf->keyidx); 3306e705c121SKalle Valo igtk_cmd.sta_id = cpu_to_le32(sta_id); 3307e705c121SKalle Valo 3308e705c121SKalle Valo if (remove_key) { 3309e705c121SKalle Valo igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_NOT_VALID); 3310e705c121SKalle Valo } else { 3311e705c121SKalle Valo struct ieee80211_key_seq seq; 3312e705c121SKalle Valo const u8 *pn; 3313e705c121SKalle Valo 3314aa950524SAyala Beker switch (keyconf->cipher) { 3315aa950524SAyala Beker case WLAN_CIPHER_SUITE_AES_CMAC: 3316aa950524SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_CCM); 3317aa950524SAyala Beker break; 33188e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_128: 33198e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_256: 33208e160ab8SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_GCMP); 33218e160ab8SAyala Beker break; 3322aa950524SAyala Beker default: 3323aa950524SAyala Beker return -EINVAL; 3324aa950524SAyala Beker } 3325aa950524SAyala Beker 33268e160ab8SAyala Beker memcpy(igtk_cmd.igtk, keyconf->key, keyconf->keylen); 33278e160ab8SAyala Beker if (keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 33288e160ab8SAyala Beker igtk_cmd.ctrl_flags |= 33298e160ab8SAyala Beker cpu_to_le32(STA_KEY_FLG_KEY_32BYTES); 3330e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3331e705c121SKalle Valo pn = seq.aes_cmac.pn; 3332e705c121SKalle Valo igtk_cmd.receive_seq_cnt = cpu_to_le64(((u64) pn[5] << 0) | 3333e705c121SKalle Valo ((u64) pn[4] << 8) | 3334e705c121SKalle Valo ((u64) pn[3] << 16) | 3335e705c121SKalle Valo ((u64) pn[2] << 24) | 3336e705c121SKalle Valo ((u64) pn[1] << 32) | 3337e705c121SKalle Valo ((u64) pn[0] << 40)); 3338e705c121SKalle Valo } 3339e705c121SKalle Valo 3340e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "%s igtk for sta %u\n", 3341e705c121SKalle Valo remove_key ? "removing" : "installing", 3342e705c121SKalle Valo igtk_cmd.sta_id); 3343e705c121SKalle Valo 33448e160ab8SAyala Beker if (!iwl_mvm_has_new_rx_api(mvm)) { 33458e160ab8SAyala Beker struct iwl_mvm_mgmt_mcast_key_cmd_v1 igtk_cmd_v1 = { 33468e160ab8SAyala Beker .ctrl_flags = igtk_cmd.ctrl_flags, 33478e160ab8SAyala Beker .key_id = igtk_cmd.key_id, 33488e160ab8SAyala Beker .sta_id = igtk_cmd.sta_id, 33498e160ab8SAyala Beker .receive_seq_cnt = igtk_cmd.receive_seq_cnt 33508e160ab8SAyala Beker }; 33518e160ab8SAyala Beker 33528e160ab8SAyala Beker memcpy(igtk_cmd_v1.igtk, igtk_cmd.igtk, 33538e160ab8SAyala Beker ARRAY_SIZE(igtk_cmd_v1.igtk)); 33548e160ab8SAyala Beker return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 33558e160ab8SAyala Beker sizeof(igtk_cmd_v1), &igtk_cmd_v1); 33568e160ab8SAyala Beker } 3357e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 3358e705c121SKalle Valo sizeof(igtk_cmd), &igtk_cmd); 3359e705c121SKalle Valo } 3360e705c121SKalle Valo 3361e705c121SKalle Valo 3362e705c121SKalle Valo static inline u8 *iwl_mvm_get_mac_addr(struct iwl_mvm *mvm, 3363e705c121SKalle Valo struct ieee80211_vif *vif, 3364e705c121SKalle Valo struct ieee80211_sta *sta) 3365e705c121SKalle Valo { 3366e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3367e705c121SKalle Valo 3368e705c121SKalle Valo if (sta) 3369e705c121SKalle Valo return sta->addr; 3370e705c121SKalle Valo 3371e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 33720ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 3373e705c121SKalle Valo u8 sta_id = mvmvif->ap_sta_id; 3374e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 3375e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3376e705c121SKalle Valo return sta->addr; 3377e705c121SKalle Valo } 3378e705c121SKalle Valo 3379e705c121SKalle Valo 3380e705c121SKalle Valo return NULL; 3381e705c121SKalle Valo } 3382e705c121SKalle Valo 3383e705c121SKalle Valo static int __iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3384e705c121SKalle Valo struct ieee80211_vif *vif, 3385e705c121SKalle Valo struct ieee80211_sta *sta, 3386e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 33874615fd15SEmmanuel Grumbach u8 key_offset, 3388e705c121SKalle Valo bool mcast) 3389e705c121SKalle Valo { 3390e705c121SKalle Valo int ret; 3391e705c121SKalle Valo const u8 *addr; 3392e705c121SKalle Valo struct ieee80211_key_seq seq; 3393e705c121SKalle Valo u16 p1k[5]; 339485aeb58cSDavid Spinadel u32 sta_id; 33954883145aSEmmanuel Grumbach bool mfp = false; 339685aeb58cSDavid Spinadel 339785aeb58cSDavid Spinadel if (sta) { 339885aeb58cSDavid Spinadel struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 339985aeb58cSDavid Spinadel 340085aeb58cSDavid Spinadel sta_id = mvm_sta->sta_id; 34014883145aSEmmanuel Grumbach mfp = sta->mfp; 340285aeb58cSDavid Spinadel } else if (vif->type == NL80211_IFTYPE_AP && 340385aeb58cSDavid Spinadel !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { 340485aeb58cSDavid Spinadel struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 340585aeb58cSDavid Spinadel 340685aeb58cSDavid Spinadel sta_id = mvmvif->mcast_sta.sta_id; 340785aeb58cSDavid Spinadel } else { 340885aeb58cSDavid Spinadel IWL_ERR(mvm, "Failed to find station id\n"); 340985aeb58cSDavid Spinadel return -EINVAL; 341085aeb58cSDavid Spinadel } 3411e705c121SKalle Valo 3412e705c121SKalle Valo switch (keyconf->cipher) { 3413e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 3414e705c121SKalle Valo addr = iwl_mvm_get_mac_addr(mvm, vif, sta); 3415e705c121SKalle Valo /* get phase 1 key from mac80211 */ 3416e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3417e705c121SKalle Valo ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k); 341885aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 34194883145aSEmmanuel Grumbach seq.tkip.iv32, p1k, 0, key_offset, 34204883145aSEmmanuel Grumbach mfp); 3421e705c121SKalle Valo break; 3422e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 3423e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 3424e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 34252a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 34262a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 342785aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 34284883145aSEmmanuel Grumbach 0, NULL, 0, key_offset, mfp); 3429e705c121SKalle Valo break; 3430e705c121SKalle Valo default: 343185aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 34324883145aSEmmanuel Grumbach 0, NULL, 0, key_offset, mfp); 3433e705c121SKalle Valo } 3434e705c121SKalle Valo 3435e705c121SKalle Valo return ret; 3436e705c121SKalle Valo } 3437e705c121SKalle Valo 3438e705c121SKalle Valo int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3439e705c121SKalle Valo struct ieee80211_vif *vif, 3440e705c121SKalle Valo struct ieee80211_sta *sta, 3441e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 34424615fd15SEmmanuel Grumbach u8 key_offset) 3443e705c121SKalle Valo { 3444e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 34455f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 344685aeb58cSDavid Spinadel u8 sta_id = IWL_MVM_INVALID_STA; 3447e705c121SKalle Valo int ret; 3448e705c121SKalle Valo static const u8 __maybe_unused zero_addr[ETH_ALEN] = {0}; 3449e705c121SKalle Valo 3450e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3451e705c121SKalle Valo 345285aeb58cSDavid Spinadel if (vif->type != NL80211_IFTYPE_AP || 345385aeb58cSDavid Spinadel keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) { 3454e705c121SKalle Valo /* Get the station id from the mvm local station table */ 34555f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 34565f7a1847SJohannes Berg if (!mvm_sta) { 34575f7a1847SJohannes Berg IWL_ERR(mvm, "Failed to find station\n"); 3458e705c121SKalle Valo return -EINVAL; 3459e705c121SKalle Valo } 34605f7a1847SJohannes Berg sta_id = mvm_sta->sta_id; 3461e705c121SKalle Valo 3462e705c121SKalle Valo /* 3463e705c121SKalle Valo * It is possible that the 'sta' parameter is NULL, and thus 346485aeb58cSDavid Spinadel * there is a need to retrieve the sta from the local station 346585aeb58cSDavid Spinadel * table. 3466e705c121SKalle Valo */ 3467e705c121SKalle Valo if (!sta) { 346885aeb58cSDavid Spinadel sta = rcu_dereference_protected( 346985aeb58cSDavid Spinadel mvm->fw_id_to_mac_id[sta_id], 3470e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3471e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) { 3472e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 3473e705c121SKalle Valo return -EINVAL; 3474e705c121SKalle Valo } 3475e705c121SKalle Valo } 3476e705c121SKalle Valo 3477e705c121SKalle Valo if (WARN_ON_ONCE(iwl_mvm_sta_from_mac80211(sta)->vif != vif)) 3478e705c121SKalle Valo return -EINVAL; 3479e829b17cSBeni Lev } else { 3480e829b17cSBeni Lev struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3481e829b17cSBeni Lev 3482e829b17cSBeni Lev sta_id = mvmvif->mcast_sta.sta_id; 3483e829b17cSBeni Lev } 3484e829b17cSBeni Lev 3485e829b17cSBeni Lev if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3486e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3487e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) { 3488e829b17cSBeni Lev ret = iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, false); 3489e829b17cSBeni Lev goto end; 349085aeb58cSDavid Spinadel } 3491e705c121SKalle Valo 34924615fd15SEmmanuel Grumbach /* If the key_offset is not pre-assigned, we need to find a 34934615fd15SEmmanuel Grumbach * new offset to use. In normal cases, the offset is not 34944615fd15SEmmanuel Grumbach * pre-assigned, but during HW_RESTART we want to reuse the 34954615fd15SEmmanuel Grumbach * same indices, so we pass them when this function is called. 34964615fd15SEmmanuel Grumbach * 34974615fd15SEmmanuel Grumbach * In D3 entry, we need to hardcoded the indices (because the 34984615fd15SEmmanuel Grumbach * firmware hardcodes the PTK offset to 0). In this case, we 34994615fd15SEmmanuel Grumbach * need to make sure we don't overwrite the hw_key_idx in the 35004615fd15SEmmanuel Grumbach * keyconf structure, because otherwise we cannot configure 35014615fd15SEmmanuel Grumbach * the original ones back when resuming. 3502e705c121SKalle Valo */ 35034615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) { 35044615fd15SEmmanuel Grumbach key_offset = iwl_mvm_set_fw_key_idx(mvm); 35054615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) 3506e705c121SKalle Valo return -ENOSPC; 35074615fd15SEmmanuel Grumbach keyconf->hw_key_idx = key_offset; 3508e705c121SKalle Valo } 3509e705c121SKalle Valo 35104615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, key_offset, mcast); 35119c3deeb5SLuca Coelho if (ret) 3512e705c121SKalle Valo goto end; 3513e705c121SKalle Valo 3514e705c121SKalle Valo /* 3515e705c121SKalle Valo * For WEP, the same key is used for multicast and unicast. Upload it 3516e705c121SKalle Valo * again, using the same key offset, and now pointing the other one 3517e705c121SKalle Valo * to the same key slot (offset). 3518e705c121SKalle Valo * If this fails, remove the original as well. 3519e705c121SKalle Valo */ 352085aeb58cSDavid Spinadel if ((keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 352185aeb58cSDavid Spinadel keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) && 352285aeb58cSDavid Spinadel sta) { 35234615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, 35244615fd15SEmmanuel Grumbach key_offset, !mcast); 3525e705c121SKalle Valo if (ret) { 3526e705c121SKalle Valo __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 35279c3deeb5SLuca Coelho goto end; 3528e705c121SKalle Valo } 3529e705c121SKalle Valo } 3530e705c121SKalle Valo 35319c3deeb5SLuca Coelho __set_bit(key_offset, mvm->fw_key_table); 35329c3deeb5SLuca Coelho 3533e705c121SKalle Valo end: 3534e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "key: cipher=%x len=%d idx=%d sta=%pM ret=%d\n", 3535e705c121SKalle Valo keyconf->cipher, keyconf->keylen, keyconf->keyidx, 3536e705c121SKalle Valo sta ? sta->addr : zero_addr, ret); 3537e705c121SKalle Valo return ret; 3538e705c121SKalle Valo } 3539e705c121SKalle Valo 3540e705c121SKalle Valo int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, 3541e705c121SKalle Valo struct ieee80211_vif *vif, 3542e705c121SKalle Valo struct ieee80211_sta *sta, 3543e705c121SKalle Valo struct ieee80211_key_conf *keyconf) 3544e705c121SKalle Valo { 3545e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 35465f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 35470ae98812SSara Sharon u8 sta_id = IWL_MVM_INVALID_STA; 3548e705c121SKalle Valo int ret, i; 3549e705c121SKalle Valo 3550e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3551e705c121SKalle Valo 35525f7a1847SJohannes Berg /* Get the station from the mvm local station table */ 35535f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 355471793b7dSLuca Coelho if (mvm_sta) 3555cd4d23c1SIlan Peer sta_id = mvm_sta->sta_id; 355685aeb58cSDavid Spinadel else if (!sta && vif->type == NL80211_IFTYPE_AP && mcast) 355785aeb58cSDavid Spinadel sta_id = iwl_mvm_vif_from_mac80211(vif)->mcast_sta.sta_id; 355885aeb58cSDavid Spinadel 3559e705c121SKalle Valo 3560e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "mvm remove dynamic key: idx=%d sta=%d\n", 3561e705c121SKalle Valo keyconf->keyidx, sta_id); 3562e705c121SKalle Valo 356371793b7dSLuca Coelho if (mvm_sta && (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 35648e160ab8SAyala Beker keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 356571793b7dSLuca Coelho keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) 3566e705c121SKalle Valo return iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, true); 3567e705c121SKalle Valo 3568e705c121SKalle Valo if (!__test_and_clear_bit(keyconf->hw_key_idx, mvm->fw_key_table)) { 3569e705c121SKalle Valo IWL_ERR(mvm, "offset %d not used in fw key table.\n", 3570e705c121SKalle Valo keyconf->hw_key_idx); 3571e705c121SKalle Valo return -ENOENT; 3572e705c121SKalle Valo } 3573e705c121SKalle Valo 3574e705c121SKalle Valo /* track which key was deleted last */ 3575e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3576e705c121SKalle Valo if (mvm->fw_key_deleted[i] < U8_MAX) 3577e705c121SKalle Valo mvm->fw_key_deleted[i]++; 3578e705c121SKalle Valo } 3579e705c121SKalle Valo mvm->fw_key_deleted[keyconf->hw_key_idx] = 0; 3580e705c121SKalle Valo 358185aeb58cSDavid Spinadel if (sta && !mvm_sta) { 3582e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "station non-existent, early return.\n"); 3583e705c121SKalle Valo return 0; 3584e705c121SKalle Valo } 3585e705c121SKalle Valo 3586e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 3587e705c121SKalle Valo if (ret) 3588e705c121SKalle Valo return ret; 3589e705c121SKalle Valo 3590e705c121SKalle Valo /* delete WEP key twice to get rid of (now useless) offset */ 3591e705c121SKalle Valo if (keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 3592e705c121SKalle Valo keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) 3593e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, !mcast); 3594e705c121SKalle Valo 3595e705c121SKalle Valo return ret; 3596e705c121SKalle Valo } 3597e705c121SKalle Valo 3598e705c121SKalle Valo void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, 3599e705c121SKalle Valo struct ieee80211_vif *vif, 3600e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3601e705c121SKalle Valo struct ieee80211_sta *sta, u32 iv32, 3602e705c121SKalle Valo u16 *phase1key) 3603e705c121SKalle Valo { 3604e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3605e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 36064883145aSEmmanuel Grumbach bool mfp = sta ? sta->mfp : false; 3607e705c121SKalle Valo 3608e705c121SKalle Valo rcu_read_lock(); 3609e705c121SKalle Valo 36105f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 36115f7a1847SJohannes Berg if (WARN_ON_ONCE(!mvm_sta)) 361212f17211SEmmanuel Grumbach goto unlock; 361385aeb58cSDavid Spinadel iwl_mvm_send_sta_key(mvm, mvm_sta->sta_id, keyconf, mcast, 36144883145aSEmmanuel Grumbach iv32, phase1key, CMD_ASYNC, keyconf->hw_key_idx, 36154883145aSEmmanuel Grumbach mfp); 361612f17211SEmmanuel Grumbach 361712f17211SEmmanuel Grumbach unlock: 3618e705c121SKalle Valo rcu_read_unlock(); 3619e705c121SKalle Valo } 3620e705c121SKalle Valo 3621e705c121SKalle Valo void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, 3622e705c121SKalle Valo struct ieee80211_sta *sta) 3623e705c121SKalle Valo { 3624e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3625e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3626e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3627e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3628e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_PS), 3629e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3630e705c121SKalle Valo }; 3631e705c121SKalle Valo int ret; 3632e705c121SKalle Valo 3633854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3634854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3635e705c121SKalle Valo if (ret) 3636e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3637e705c121SKalle Valo } 3638e705c121SKalle Valo 3639e705c121SKalle Valo void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, 3640e705c121SKalle Valo struct ieee80211_sta *sta, 3641e705c121SKalle Valo enum ieee80211_frame_release_type reason, 3642e705c121SKalle Valo u16 cnt, u16 tids, bool more_data, 36439a3fcf91SSara Sharon bool single_sta_queue) 3644e705c121SKalle Valo { 3645e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3646e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3647e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3648e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3649e705c121SKalle Valo .modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT, 3650e705c121SKalle Valo .sleep_tx_count = cpu_to_le16(cnt), 3651e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3652e705c121SKalle Valo }; 3653e705c121SKalle Valo int tid, ret; 3654e705c121SKalle Valo unsigned long _tids = tids; 3655e705c121SKalle Valo 3656e705c121SKalle Valo /* convert TIDs to ACs - we don't support TSPEC so that's OK 3657e705c121SKalle Valo * Note that this field is reserved and unused by firmware not 3658e705c121SKalle Valo * supporting GO uAPSD, so it's safe to always do this. 3659e705c121SKalle Valo */ 3660e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) 3661e705c121SKalle Valo cmd.awake_acs |= BIT(tid_to_ucode_ac[tid]); 3662e705c121SKalle Valo 36639a3fcf91SSara Sharon /* If we're releasing frames from aggregation or dqa queues then check 36649a3fcf91SSara Sharon * if all the queues that we're releasing frames from, combined, have: 3665e705c121SKalle Valo * - more frames than the service period, in which case more_data 3666e705c121SKalle Valo * needs to be set 3667e705c121SKalle Valo * - fewer than 'cnt' frames, in which case we need to adjust the 3668e705c121SKalle Valo * firmware command (but do that unconditionally) 3669e705c121SKalle Valo */ 36709a3fcf91SSara Sharon if (single_sta_queue) { 3671e705c121SKalle Valo int remaining = cnt; 367236be0eb6SEmmanuel Grumbach int sleep_tx_count; 3673e705c121SKalle Valo 3674e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3675e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) { 3676e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 3677e705c121SKalle Valo u16 n_queued; 3678e705c121SKalle Valo 3679e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 3680e705c121SKalle Valo 3681dd32162dSLiad Kaufman n_queued = iwl_mvm_tid_queued(mvm, tid_data); 3682e705c121SKalle Valo if (n_queued > remaining) { 3683e705c121SKalle Valo more_data = true; 3684e705c121SKalle Valo remaining = 0; 3685e705c121SKalle Valo break; 3686e705c121SKalle Valo } 3687e705c121SKalle Valo remaining -= n_queued; 3688e705c121SKalle Valo } 368936be0eb6SEmmanuel Grumbach sleep_tx_count = cnt - remaining; 369036be0eb6SEmmanuel Grumbach if (reason == IEEE80211_FRAME_RELEASE_UAPSD) 369136be0eb6SEmmanuel Grumbach mvmsta->sleep_tx_count = sleep_tx_count; 3692e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3693e705c121SKalle Valo 369436be0eb6SEmmanuel Grumbach cmd.sleep_tx_count = cpu_to_le16(sleep_tx_count); 3695e705c121SKalle Valo if (WARN_ON(cnt - remaining == 0)) { 3696e705c121SKalle Valo ieee80211_sta_eosp(sta); 3697e705c121SKalle Valo return; 3698e705c121SKalle Valo } 3699e705c121SKalle Valo } 3700e705c121SKalle Valo 3701e705c121SKalle Valo /* Note: this is ignored by firmware not supporting GO uAPSD */ 3702e705c121SKalle Valo if (more_data) 3703ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_MOREDATA; 3704e705c121SKalle Valo 3705e705c121SKalle Valo if (reason == IEEE80211_FRAME_RELEASE_PSPOLL) { 3706e705c121SKalle Valo mvmsta->next_status_eosp = true; 3707ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_PS_POLL; 3708e705c121SKalle Valo } else { 3709ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_UAPSD; 3710e705c121SKalle Valo } 3711e705c121SKalle Valo 3712156f92f2SEmmanuel Grumbach /* block the Tx queues until the FW updated the sleep Tx count */ 3713156f92f2SEmmanuel Grumbach iwl_trans_block_txq_ptrs(mvm->trans, true); 3714156f92f2SEmmanuel Grumbach 3715156f92f2SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 3716156f92f2SEmmanuel Grumbach CMD_ASYNC | CMD_WANT_ASYNC_CALLBACK, 3717854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3718e705c121SKalle Valo if (ret) 3719e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3720e705c121SKalle Valo } 3721e705c121SKalle Valo 3722e705c121SKalle Valo void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm, 3723e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 3724e705c121SKalle Valo { 3725e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 3726e705c121SKalle Valo struct iwl_mvm_eosp_notification *notif = (void *)pkt->data; 3727e705c121SKalle Valo struct ieee80211_sta *sta; 3728e705c121SKalle Valo u32 sta_id = le32_to_cpu(notif->sta_id); 3729e705c121SKalle Valo 3730e705c121SKalle Valo if (WARN_ON_ONCE(sta_id >= IWL_MVM_STATION_COUNT)) 3731e705c121SKalle Valo return; 3732e705c121SKalle Valo 3733e705c121SKalle Valo rcu_read_lock(); 3734e705c121SKalle Valo sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 3735e705c121SKalle Valo if (!IS_ERR_OR_NULL(sta)) 3736e705c121SKalle Valo ieee80211_sta_eosp(sta); 3737e705c121SKalle Valo rcu_read_unlock(); 3738e705c121SKalle Valo } 3739e705c121SKalle Valo 3740e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm, 3741e705c121SKalle Valo struct iwl_mvm_sta *mvmsta, bool disable) 3742e705c121SKalle Valo { 3743e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3744e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3745e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3746e705c121SKalle Valo .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 3747e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 3748e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3749e705c121SKalle Valo }; 3750e705c121SKalle Valo int ret; 3751e705c121SKalle Valo 3752854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3753854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3754e705c121SKalle Valo if (ret) 3755e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3756e705c121SKalle Valo } 3757e705c121SKalle Valo 3758e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm, 3759e705c121SKalle Valo struct ieee80211_sta *sta, 3760e705c121SKalle Valo bool disable) 3761e705c121SKalle Valo { 3762e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3763e705c121SKalle Valo 3764e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 3765e705c121SKalle Valo 3766e705c121SKalle Valo if (mvm_sta->disable_tx == disable) { 3767e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 3768e705c121SKalle Valo return; 3769e705c121SKalle Valo } 3770e705c121SKalle Valo 3771e705c121SKalle Valo mvm_sta->disable_tx = disable; 3772e705c121SKalle Valo 3773c8f54701SJohannes Berg /* Tell mac80211 to start/stop queuing tx for this station */ 3774e705c121SKalle Valo ieee80211_sta_block_awake(mvm->hw, sta, disable); 3775e705c121SKalle Valo 3776e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvm_sta, disable); 3777e705c121SKalle Valo 3778e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 3779e705c121SKalle Valo } 3780e705c121SKalle Valo 3781ced19f26SSara Sharon static void iwl_mvm_int_sta_modify_disable_tx(struct iwl_mvm *mvm, 3782ced19f26SSara Sharon struct iwl_mvm_vif *mvmvif, 3783ced19f26SSara Sharon struct iwl_mvm_int_sta *sta, 3784ced19f26SSara Sharon bool disable) 3785ced19f26SSara Sharon { 3786ced19f26SSara Sharon u32 id = FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color); 3787ced19f26SSara Sharon struct iwl_mvm_add_sta_cmd cmd = { 3788ced19f26SSara Sharon .add_modify = STA_MODE_MODIFY, 3789ced19f26SSara Sharon .sta_id = sta->sta_id, 3790ced19f26SSara Sharon .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 3791ced19f26SSara Sharon .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 3792ced19f26SSara Sharon .mac_id_n_color = cpu_to_le32(id), 3793ced19f26SSara Sharon }; 3794ced19f26SSara Sharon int ret; 3795ced19f26SSara Sharon 3796ced19f26SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 0, 3797ced19f26SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3798ced19f26SSara Sharon if (ret) 3799ced19f26SSara Sharon IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3800ced19f26SSara Sharon } 3801ced19f26SSara Sharon 3802e705c121SKalle Valo void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm, 3803e705c121SKalle Valo struct iwl_mvm_vif *mvmvif, 3804e705c121SKalle Valo bool disable) 3805e705c121SKalle Valo { 3806e705c121SKalle Valo struct ieee80211_sta *sta; 3807e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3808e705c121SKalle Valo int i; 3809e705c121SKalle Valo 3810e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3811e705c121SKalle Valo 3812e705c121SKalle Valo /* Block/unblock all the stations of the given mvmvif */ 38130ae98812SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 3814e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 3815e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3816e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) 3817e705c121SKalle Valo continue; 3818e705c121SKalle Valo 3819e705c121SKalle Valo mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3820e705c121SKalle Valo if (mvm_sta->mac_id_n_color != 3821e705c121SKalle Valo FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)) 3822e705c121SKalle Valo continue; 3823e705c121SKalle Valo 3824e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx_ap(mvm, sta, disable); 3825e705c121SKalle Valo } 3826ced19f26SSara Sharon 3827ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3828ced19f26SSara Sharon return; 3829ced19f26SSara Sharon 3830ced19f26SSara Sharon /* Need to block/unblock also multicast station */ 3831ced19f26SSara Sharon if (mvmvif->mcast_sta.sta_id != IWL_MVM_INVALID_STA) 3832ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 3833ced19f26SSara Sharon &mvmvif->mcast_sta, disable); 3834ced19f26SSara Sharon 3835ced19f26SSara Sharon /* 3836ced19f26SSara Sharon * Only unblock the broadcast station (FW blocks it for immediate 3837ced19f26SSara Sharon * quiet, not the driver) 3838ced19f26SSara Sharon */ 3839ced19f26SSara Sharon if (!disable && mvmvif->bcast_sta.sta_id != IWL_MVM_INVALID_STA) 3840ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 3841ced19f26SSara Sharon &mvmvif->bcast_sta, disable); 3842e705c121SKalle Valo } 3843e705c121SKalle Valo 3844e705c121SKalle Valo void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 3845e705c121SKalle Valo { 3846e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3847e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 3848e705c121SKalle Valo 3849e705c121SKalle Valo rcu_read_lock(); 3850e705c121SKalle Valo 3851e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->ap_sta_id); 3852e705c121SKalle Valo 3853e705c121SKalle Valo if (!WARN_ON(!mvmsta)) 3854e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true); 3855e705c121SKalle Valo 3856e705c121SKalle Valo rcu_read_unlock(); 3857e705c121SKalle Valo } 3858dd32162dSLiad Kaufman 3859dd32162dSLiad Kaufman u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data) 3860dd32162dSLiad Kaufman { 3861dd32162dSLiad Kaufman u16 sn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3862dd32162dSLiad Kaufman 3863dd32162dSLiad Kaufman /* 38642f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 3865dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 3866dd32162dSLiad Kaufman */ 3867dd32162dSLiad Kaufman if (mvm->trans->cfg->gen2) 3868dd32162dSLiad Kaufman sn &= 0xff; 3869dd32162dSLiad Kaufman 3870dd32162dSLiad Kaufman return ieee80211_sn_sub(sn, tid_data->next_reclaimed); 3871dd32162dSLiad Kaufman } 3872