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 { 7499a16ee0cSShaul Triebitz int queue, size = max_t(u32, IWL_DEFAULT_QUEUE_SIZE, 7509a16ee0cSShaul Triebitz mvm->trans->cfg->min_256_ba_txq_size); 75199448a8cSJohannes Berg 75299448a8cSJohannes Berg if (tid == IWL_MAX_TID_COUNT) { 75399448a8cSJohannes Berg tid = IWL_MGMT_TID; 754ff911dcaSShaul Triebitz size = max_t(u32, IWL_MGMT_QUEUE_SIZE, 755ff911dcaSShaul Triebitz mvm->trans->cfg->min_txq_size); 75699448a8cSJohannes Berg } 75799448a8cSJohannes Berg queue = iwl_trans_txq_alloc(mvm->trans, 75899448a8cSJohannes Berg cpu_to_le16(TX_QUEUE_CFG_ENABLE_QUEUE), 75999448a8cSJohannes Berg sta_id, tid, SCD_QUEUE_CFG, size, timeout); 76099448a8cSJohannes Berg 76199448a8cSJohannes Berg if (queue < 0) { 76299448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 76399448a8cSJohannes Berg "Failed allocating TXQ for sta %d tid %d, ret: %d\n", 76499448a8cSJohannes Berg sta_id, tid, queue); 76599448a8cSJohannes Berg return queue; 76699448a8cSJohannes Berg } 76799448a8cSJohannes Berg 76899448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Enabling TXQ #%d for sta %d tid %d\n", 76999448a8cSJohannes Berg queue, sta_id, tid); 77099448a8cSJohannes Berg 771cfbc6c4cSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, "Enabling TXQ #%d\n", queue); 77299448a8cSJohannes Berg 77399448a8cSJohannes Berg return queue; 77499448a8cSJohannes Berg } 77599448a8cSJohannes Berg 776310181ecSSara Sharon static int iwl_mvm_sta_alloc_queue_tvqm(struct iwl_mvm *mvm, 777310181ecSSara Sharon struct ieee80211_sta *sta, u8 ac, 778310181ecSSara Sharon int tid) 779310181ecSSara Sharon { 780310181ecSSara Sharon struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 781cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 782cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 783310181ecSSara Sharon unsigned int wdg_timeout = 784310181ecSSara Sharon iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 785310181ecSSara Sharon int queue = -1; 786310181ecSSara Sharon 787310181ecSSara Sharon lockdep_assert_held(&mvm->mutex); 788310181ecSSara Sharon 789310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 790310181ecSSara Sharon "Allocating queue for sta %d on tid %d\n", 791310181ecSSara Sharon mvmsta->sta_id, tid); 792cfbc6c4cSSara Sharon queue = iwl_mvm_tvqm_enable_txq(mvm, mvmsta->sta_id, tid, wdg_timeout); 793310181ecSSara Sharon if (queue < 0) 794310181ecSSara Sharon return queue; 795310181ecSSara Sharon 796cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 797cfbc6c4cSSara Sharon mvm->tvqm_info[queue].txq_tid = tid; 798cfbc6c4cSSara Sharon mvm->tvqm_info[queue].sta_id = mvmsta->sta_id; 799cfbc6c4cSSara Sharon 800310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, "Allocated queue is %d\n", queue); 801310181ecSSara Sharon 802310181ecSSara Sharon spin_lock_bh(&mvmsta->lock); 803310181ecSSara Sharon mvmsta->tid_data[tid].txq_id = queue; 804310181ecSSara Sharon spin_unlock_bh(&mvmsta->lock); 805310181ecSSara Sharon 806310181ecSSara Sharon return 0; 807310181ecSSara Sharon } 808310181ecSSara Sharon 809cfbc6c4cSSara Sharon static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, 810cfbc6c4cSSara Sharon struct ieee80211_sta *sta, 811cfbc6c4cSSara Sharon int queue, u8 sta_id, u8 tid) 81299448a8cSJohannes Berg { 81399448a8cSJohannes Berg bool enable_queue = true; 81499448a8cSJohannes Berg 81599448a8cSJohannes Berg /* Make sure this TID isn't already enabled */ 81699448a8cSJohannes Berg if (mvm->queue_info[queue].tid_bitmap & BIT(tid)) { 81799448a8cSJohannes Berg IWL_ERR(mvm, "Trying to enable TXQ %d with existing TID %d\n", 81899448a8cSJohannes Berg queue, tid); 81999448a8cSJohannes Berg return false; 82099448a8cSJohannes Berg } 82199448a8cSJohannes Berg 82299448a8cSJohannes Berg /* Update mappings and refcounts */ 8231c14089eSJohannes Berg if (mvm->queue_info[queue].tid_bitmap) 82499448a8cSJohannes Berg enable_queue = false; 82599448a8cSJohannes Berg 82699448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap |= BIT(tid); 82799448a8cSJohannes Berg mvm->queue_info[queue].ra_sta_id = sta_id; 82899448a8cSJohannes Berg 82999448a8cSJohannes Berg if (enable_queue) { 83099448a8cSJohannes Berg if (tid != IWL_MAX_TID_COUNT) 83199448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = 83299448a8cSJohannes Berg tid_to_mac80211_ac[tid]; 83399448a8cSJohannes Berg else 83499448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = IEEE80211_AC_VO; 83599448a8cSJohannes Berg 83699448a8cSJohannes Berg mvm->queue_info[queue].txq_tid = tid; 83799448a8cSJohannes Berg } 83899448a8cSJohannes Berg 839cfbc6c4cSSara Sharon if (sta) { 840cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 841cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 842cfbc6c4cSSara Sharon 843cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 844cfbc6c4cSSara Sharon } 845cfbc6c4cSSara Sharon 84699448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 847cfbc6c4cSSara Sharon "Enabling TXQ #%d tids=0x%x\n", 848cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 84999448a8cSJohannes Berg 85099448a8cSJohannes Berg return enable_queue; 85199448a8cSJohannes Berg } 85299448a8cSJohannes Berg 853cfbc6c4cSSara Sharon static bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 854cfbc6c4cSSara Sharon int queue, u16 ssn, 85599448a8cSJohannes Berg const struct iwl_trans_txq_scd_cfg *cfg, 85699448a8cSJohannes Berg unsigned int wdg_timeout) 85799448a8cSJohannes Berg { 85899448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 85999448a8cSJohannes Berg .scd_queue = queue, 86099448a8cSJohannes Berg .action = SCD_CFG_ENABLE_QUEUE, 86199448a8cSJohannes Berg .window = cfg->frame_limit, 86299448a8cSJohannes Berg .sta_id = cfg->sta_id, 86399448a8cSJohannes Berg .ssn = cpu_to_le16(ssn), 86499448a8cSJohannes Berg .tx_fifo = cfg->fifo, 86599448a8cSJohannes Berg .aggregate = cfg->aggregate, 86699448a8cSJohannes Berg .tid = cfg->tid, 86799448a8cSJohannes Berg }; 86899448a8cSJohannes Berg bool inc_ssn; 86999448a8cSJohannes Berg 87099448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 87199448a8cSJohannes Berg return false; 87299448a8cSJohannes Berg 87399448a8cSJohannes Berg /* Send the enabling command if we need to */ 874cfbc6c4cSSara Sharon if (!iwl_mvm_update_txq_mapping(mvm, sta, queue, cfg->sta_id, cfg->tid)) 87599448a8cSJohannes Berg return false; 87699448a8cSJohannes Berg 87799448a8cSJohannes Berg inc_ssn = iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, 87899448a8cSJohannes Berg NULL, wdg_timeout); 87999448a8cSJohannes Berg if (inc_ssn) 88099448a8cSJohannes Berg le16_add_cpu(&cmd.ssn, 1); 88199448a8cSJohannes Berg 88299448a8cSJohannes Berg WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd), 88399448a8cSJohannes Berg "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo); 88499448a8cSJohannes Berg 88599448a8cSJohannes Berg return inc_ssn; 88699448a8cSJohannes Berg } 88799448a8cSJohannes Berg 888b3a87f11SJohannes Berg static void iwl_mvm_change_queue_tid(struct iwl_mvm *mvm, int queue) 88919aefa45SLiad Kaufman { 89019aefa45SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 89119aefa45SLiad Kaufman .scd_queue = queue, 89219aefa45SLiad Kaufman .action = SCD_CFG_UPDATE_QUEUE_TID, 89319aefa45SLiad Kaufman }; 89419aefa45SLiad Kaufman int tid; 89519aefa45SLiad Kaufman unsigned long tid_bitmap; 89619aefa45SLiad Kaufman int ret; 89719aefa45SLiad Kaufman 89819aefa45SLiad Kaufman lockdep_assert_held(&mvm->mutex); 89919aefa45SLiad Kaufman 900bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 901bb49701bSSara Sharon return; 902bb49701bSSara Sharon 90319aefa45SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 90419aefa45SLiad Kaufman 90519aefa45SLiad Kaufman if (WARN(!tid_bitmap, "TXQ %d has no tids assigned to it\n", queue)) 90619aefa45SLiad Kaufman return; 90719aefa45SLiad Kaufman 90819aefa45SLiad Kaufman /* Find any TID for queue */ 90919aefa45SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 91019aefa45SLiad Kaufman cmd.tid = tid; 91119aefa45SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 91219aefa45SLiad Kaufman 91319aefa45SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 914341ca402SLiad Kaufman if (ret) { 91519aefa45SLiad Kaufman IWL_ERR(mvm, "Failed to update owner of TXQ %d (ret=%d)\n", 91619aefa45SLiad Kaufman queue, ret); 917341ca402SLiad Kaufman return; 918341ca402SLiad Kaufman } 919341ca402SLiad Kaufman 920341ca402SLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 92119aefa45SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Changed TXQ %d ownership to tid %d\n", 92219aefa45SLiad Kaufman queue, tid); 92319aefa45SLiad Kaufman } 92419aefa45SLiad Kaufman 9259f9af3d7SLiad Kaufman static void iwl_mvm_unshare_queue(struct iwl_mvm *mvm, int queue) 9269f9af3d7SLiad Kaufman { 9279f9af3d7SLiad Kaufman struct ieee80211_sta *sta; 9289f9af3d7SLiad Kaufman struct iwl_mvm_sta *mvmsta; 929806911daSSharon Dvir u8 sta_id; 9309f9af3d7SLiad Kaufman int tid = -1; 9319f9af3d7SLiad Kaufman unsigned long tid_bitmap; 9329f9af3d7SLiad Kaufman unsigned int wdg_timeout; 9339f9af3d7SLiad Kaufman int ssn; 9349f9af3d7SLiad Kaufman int ret = true; 9359f9af3d7SLiad Kaufman 936bb49701bSSara Sharon /* queue sharing is disabled on new TX path */ 937bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 938bb49701bSSara Sharon return; 939bb49701bSSara Sharon 9409f9af3d7SLiad Kaufman lockdep_assert_held(&mvm->mutex); 9419f9af3d7SLiad Kaufman 9429f9af3d7SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 9439f9af3d7SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 9449f9af3d7SLiad Kaufman 9459f9af3d7SLiad Kaufman /* Find TID for queue, and make sure it is the only one on the queue */ 9469f9af3d7SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 9479f9af3d7SLiad Kaufman if (tid_bitmap != BIT(tid)) { 9489f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to unshare q %d, active tids=0x%lx\n", 9499f9af3d7SLiad Kaufman queue, tid_bitmap); 9509f9af3d7SLiad Kaufman return; 9519f9af3d7SLiad Kaufman } 9529f9af3d7SLiad Kaufman 9539f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Unsharing TXQ %d, keeping tid %d\n", queue, 9549f9af3d7SLiad Kaufman tid); 9559f9af3d7SLiad Kaufman 9569f9af3d7SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 9579f9af3d7SLiad Kaufman lockdep_is_held(&mvm->mutex)); 9589f9af3d7SLiad Kaufman 9599f9af3d7SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 9609f9af3d7SLiad Kaufman return; 9619f9af3d7SLiad Kaufman 9629f9af3d7SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 9639f9af3d7SLiad Kaufman wdg_timeout = iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 9649f9af3d7SLiad Kaufman 9659f9af3d7SLiad Kaufman ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 9669f9af3d7SLiad Kaufman 967cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, 9689f9af3d7SLiad Kaufman tid_to_mac80211_ac[tid], ssn, 969cfbc6c4cSSara Sharon wdg_timeout, true, 970cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 9719f9af3d7SLiad Kaufman if (ret) { 9729f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to redirect TXQ %d\n", queue); 9739f9af3d7SLiad Kaufman return; 9749f9af3d7SLiad Kaufman } 9759f9af3d7SLiad Kaufman 9769f9af3d7SLiad Kaufman /* If aggs should be turned back on - do it */ 9779f9af3d7SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) { 9789cd70e80SEmmanuel Grumbach struct iwl_mvm_add_sta_cmd cmd = {0}; 9799f9af3d7SLiad Kaufman 9809f9af3d7SLiad Kaufman mvmsta->tid_disable_agg &= ~BIT(tid); 9819f9af3d7SLiad Kaufman 9829f9af3d7SLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 9839f9af3d7SLiad Kaufman cmd.sta_id = mvmsta->sta_id; 9849f9af3d7SLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 9859f9af3d7SLiad Kaufman cmd.modify_mask = STA_MODIFY_TID_DISABLE_TX; 9869f9af3d7SLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 9879f9af3d7SLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 9889f9af3d7SLiad Kaufman 9899f9af3d7SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 9909f9af3d7SLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), &cmd); 9919f9af3d7SLiad Kaufman if (!ret) { 9929f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 9939f9af3d7SLiad Kaufman "TXQ #%d is now aggregated again\n", 9949f9af3d7SLiad Kaufman queue); 9959f9af3d7SLiad Kaufman 9969f9af3d7SLiad Kaufman /* Mark queue intenally as aggregating again */ 9979f9af3d7SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, false); 9989f9af3d7SLiad Kaufman } 9999f9af3d7SLiad Kaufman } 10009f9af3d7SLiad Kaufman 10019f9af3d7SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 10029f9af3d7SLiad Kaufman } 10039f9af3d7SLiad Kaufman 100499448a8cSJohannes Berg /* 100599448a8cSJohannes Berg * Remove inactive TIDs of a given queue. 100699448a8cSJohannes Berg * If all queue TIDs are inactive - mark the queue as inactive 100799448a8cSJohannes Berg * If only some the queue TIDs are inactive - unmap them from the queue 1008724fe771SJohannes Berg * 1009724fe771SJohannes Berg * Returns %true if all TIDs were removed and the queue could be reused. 101099448a8cSJohannes Berg */ 1011724fe771SJohannes Berg static bool iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm, 101299448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta, int queue, 101390d2d94cSJohannes Berg unsigned long tid_bitmap, 1014b3a87f11SJohannes Berg unsigned long *unshare_queues, 1015b3a87f11SJohannes Berg unsigned long *changetid_queues) 101699448a8cSJohannes Berg { 101799448a8cSJohannes Berg int tid; 101899448a8cSJohannes Berg 101999448a8cSJohannes Berg lockdep_assert_held(&mvmsta->lock); 1020f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 102199448a8cSJohannes Berg 102299448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1023724fe771SJohannes Berg return false; 102499448a8cSJohannes Berg 102599448a8cSJohannes Berg /* Go over all non-active TIDs, incl. IWL_MAX_TID_COUNT (for mgmt) */ 102699448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 102799448a8cSJohannes Berg /* If some TFDs are still queued - don't mark TID as inactive */ 102899448a8cSJohannes Berg if (iwl_mvm_tid_queued(mvm, &mvmsta->tid_data[tid])) 102999448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 103099448a8cSJohannes Berg 103199448a8cSJohannes Berg /* Don't mark as inactive any TID that has an active BA */ 103299448a8cSJohannes Berg if (mvmsta->tid_data[tid].state != IWL_AGG_OFF) 103399448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 103499448a8cSJohannes Berg } 103599448a8cSJohannes Berg 1036724fe771SJohannes Berg /* If all TIDs in the queue are inactive - return it can be reused */ 103799448a8cSJohannes Berg if (tid_bitmap == mvm->queue_info[queue].tid_bitmap) { 1038724fe771SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Queue %d is inactive\n", queue); 1039724fe771SJohannes Berg return true; 104099448a8cSJohannes Berg } 104199448a8cSJohannes Berg 104299448a8cSJohannes Berg /* 104399448a8cSJohannes Berg * If we are here, this is a shared queue and not all TIDs timed-out. 104499448a8cSJohannes Berg * Remove the ones that did. 104599448a8cSJohannes Berg */ 104699448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1047b3a87f11SJohannes Berg u16 tid_bitmap; 104899448a8cSJohannes Berg 104999448a8cSJohannes Berg mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 105099448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 105199448a8cSJohannes Berg 1052b3a87f11SJohannes Berg tid_bitmap = mvm->queue_info[queue].tid_bitmap; 1053b3a87f11SJohannes Berg 1054b3a87f11SJohannes Berg /* 1055b3a87f11SJohannes Berg * We need to take into account a situation in which a TXQ was 1056b3a87f11SJohannes Berg * allocated to TID x, and then turned shared by adding TIDs y 1057b3a87f11SJohannes Berg * and z. If TID x becomes inactive and is removed from the TXQ, 1058b3a87f11SJohannes Berg * ownership must be given to one of the remaining TIDs. 1059b3a87f11SJohannes Berg * This is mainly because if TID x continues - a new queue can't 1060b3a87f11SJohannes Berg * be allocated for it as long as it is an owner of another TXQ. 1061b3a87f11SJohannes Berg * 1062b3a87f11SJohannes Berg * Mark this queue in the right bitmap, we'll send the command 1063b3a87f11SJohannes Berg * to the firmware later. 1064b3a87f11SJohannes Berg */ 1065b3a87f11SJohannes Berg if (!(tid_bitmap & BIT(mvm->queue_info[queue].txq_tid))) 1066b3a87f11SJohannes Berg set_bit(queue, changetid_queues); 1067b3a87f11SJohannes Berg 106899448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 106999448a8cSJohannes Berg "Removing inactive TID %d from shared Q:%d\n", 107099448a8cSJohannes Berg tid, queue); 107199448a8cSJohannes Berg } 107299448a8cSJohannes Berg 107399448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 107499448a8cSJohannes Berg "TXQ #%d left with tid bitmap 0x%x\n", queue, 107599448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap); 107699448a8cSJohannes Berg 107799448a8cSJohannes Berg /* 107899448a8cSJohannes Berg * There may be different TIDs with the same mac queues, so make 107999448a8cSJohannes Berg * sure all TIDs have existing corresponding mac queues enabled 108099448a8cSJohannes Berg */ 108199448a8cSJohannes Berg tid_bitmap = mvm->queue_info[queue].tid_bitmap; 108299448a8cSJohannes Berg 108399448a8cSJohannes Berg /* If the queue is marked as shared - "unshare" it */ 10841c14089eSJohannes Berg if (hweight16(mvm->queue_info[queue].tid_bitmap) == 1 && 108599448a8cSJohannes Berg mvm->queue_info[queue].status == IWL_MVM_QUEUE_SHARED) { 108699448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Marking Q:%d for reconfig\n", 108799448a8cSJohannes Berg queue); 108890d2d94cSJohannes Berg set_bit(queue, unshare_queues); 108999448a8cSJohannes Berg } 1090724fe771SJohannes Berg 1091724fe771SJohannes Berg return false; 109299448a8cSJohannes Berg } 109399448a8cSJohannes Berg 1094724fe771SJohannes Berg /* 1095724fe771SJohannes Berg * Check for inactivity - this includes checking if any queue 1096724fe771SJohannes Berg * can be unshared and finding one (and only one) that can be 1097724fe771SJohannes Berg * reused. 1098724fe771SJohannes Berg * This function is also invoked as a sort of clean-up task, 1099724fe771SJohannes Berg * in which case @alloc_for_sta is IWL_MVM_INVALID_STA. 1100724fe771SJohannes Berg * 1101724fe771SJohannes Berg * Returns the queue number, or -ENOSPC. 1102724fe771SJohannes Berg */ 1103724fe771SJohannes Berg static int iwl_mvm_inactivity_check(struct iwl_mvm *mvm, u8 alloc_for_sta) 110499448a8cSJohannes Berg { 110599448a8cSJohannes Berg unsigned long now = jiffies; 110690d2d94cSJohannes Berg unsigned long unshare_queues = 0; 1107b3a87f11SJohannes Berg unsigned long changetid_queues = 0; 1108724fe771SJohannes Berg int i, ret, free_queue = -ENOSPC; 1109cfbc6c4cSSara Sharon struct ieee80211_sta *queue_owner = NULL; 111099448a8cSJohannes Berg 1111df2a2245SJohannes Berg lockdep_assert_held(&mvm->mutex); 1112df2a2245SJohannes Berg 111399448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1114724fe771SJohannes Berg return -ENOSPC; 111599448a8cSJohannes Berg 111699448a8cSJohannes Berg rcu_read_lock(); 111799448a8cSJohannes Berg 1118459ab045SJohannes Berg /* we skip the CMD queue below by starting at 1 */ 1119459ab045SJohannes Berg BUILD_BUG_ON(IWL_MVM_DQA_CMD_QUEUE != 0); 1120459ab045SJohannes Berg 1121459ab045SJohannes Berg for (i = 1; i < IWL_MAX_HW_QUEUES; i++) { 112299448a8cSJohannes Berg struct ieee80211_sta *sta; 112399448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta; 112499448a8cSJohannes Berg u8 sta_id; 112599448a8cSJohannes Berg int tid; 112699448a8cSJohannes Berg unsigned long inactive_tid_bitmap = 0; 112799448a8cSJohannes Berg unsigned long queue_tid_bitmap; 112899448a8cSJohannes Berg 112999448a8cSJohannes Berg queue_tid_bitmap = mvm->queue_info[i].tid_bitmap; 1130459ab045SJohannes Berg if (!queue_tid_bitmap) 1131459ab045SJohannes Berg continue; 113299448a8cSJohannes Berg 113399448a8cSJohannes Berg /* If TXQ isn't in active use anyway - nothing to do here... */ 113499448a8cSJohannes Berg if (mvm->queue_info[i].status != IWL_MVM_QUEUE_READY && 1135459ab045SJohannes Berg mvm->queue_info[i].status != IWL_MVM_QUEUE_SHARED) 113699448a8cSJohannes Berg continue; 113799448a8cSJohannes Berg 113899448a8cSJohannes Berg /* Check to see if there are inactive TIDs on this queue */ 113999448a8cSJohannes Berg for_each_set_bit(tid, &queue_tid_bitmap, 114099448a8cSJohannes Berg IWL_MAX_TID_COUNT + 1) { 114199448a8cSJohannes Berg if (time_after(mvm->queue_info[i].last_frame_time[tid] + 114299448a8cSJohannes Berg IWL_MVM_DQA_QUEUE_TIMEOUT, now)) 114399448a8cSJohannes Berg continue; 114499448a8cSJohannes Berg 114599448a8cSJohannes Berg inactive_tid_bitmap |= BIT(tid); 114699448a8cSJohannes Berg } 114799448a8cSJohannes Berg 114899448a8cSJohannes Berg /* If all TIDs are active - finish check on this queue */ 114999448a8cSJohannes Berg if (!inactive_tid_bitmap) 115099448a8cSJohannes Berg continue; 115199448a8cSJohannes Berg 115299448a8cSJohannes Berg /* 115399448a8cSJohannes Berg * If we are here - the queue hadn't been served recently and is 115499448a8cSJohannes Berg * in use 115599448a8cSJohannes Berg */ 115699448a8cSJohannes Berg 115799448a8cSJohannes Berg sta_id = mvm->queue_info[i].ra_sta_id; 115899448a8cSJohannes Berg sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 115999448a8cSJohannes Berg 116099448a8cSJohannes Berg /* 116199448a8cSJohannes Berg * If the STA doesn't exist anymore, it isn't an error. It could 116299448a8cSJohannes Berg * be that it was removed since getting the queues, and in this 116399448a8cSJohannes Berg * case it should've inactivated its queues anyway. 116499448a8cSJohannes Berg */ 116599448a8cSJohannes Berg if (IS_ERR_OR_NULL(sta)) 116699448a8cSJohannes Berg continue; 116799448a8cSJohannes Berg 116899448a8cSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 116999448a8cSJohannes Berg 1170f3f240f9SJohannes Berg spin_lock_bh(&mvmsta->lock); 1171724fe771SJohannes Berg ret = iwl_mvm_remove_inactive_tids(mvm, mvmsta, i, 117290d2d94cSJohannes Berg inactive_tid_bitmap, 1173b3a87f11SJohannes Berg &unshare_queues, 1174b3a87f11SJohannes Berg &changetid_queues); 1175cfbc6c4cSSara Sharon if (ret >= 0 && free_queue < 0) { 1176cfbc6c4cSSara Sharon queue_owner = sta; 1177724fe771SJohannes Berg free_queue = ret; 1178cfbc6c4cSSara Sharon } 1179459ab045SJohannes Berg /* only unlock sta lock - we still need the queue info lock */ 1180f3f240f9SJohannes Berg spin_unlock_bh(&mvmsta->lock); 118199448a8cSJohannes Berg } 118299448a8cSJohannes Berg 1183df2a2245SJohannes Berg 1184df2a2245SJohannes Berg /* Reconfigure queues requiring reconfiguation */ 118590d2d94cSJohannes Berg for_each_set_bit(i, &unshare_queues, IWL_MAX_HW_QUEUES) 118690d2d94cSJohannes Berg iwl_mvm_unshare_queue(mvm, i); 1187b3a87f11SJohannes Berg for_each_set_bit(i, &changetid_queues, IWL_MAX_HW_QUEUES) 1188b3a87f11SJohannes Berg iwl_mvm_change_queue_tid(mvm, i); 1189724fe771SJohannes Berg 1190724fe771SJohannes Berg if (free_queue >= 0 && alloc_for_sta != IWL_MVM_INVALID_STA) { 1191cfbc6c4cSSara Sharon ret = iwl_mvm_free_inactive_queue(mvm, free_queue, queue_owner, 1192724fe771SJohannes Berg alloc_for_sta); 1193cfbc6c4cSSara Sharon if (ret) { 1194cfbc6c4cSSara Sharon rcu_read_unlock(); 1195724fe771SJohannes Berg return ret; 1196724fe771SJohannes Berg } 1197cfbc6c4cSSara Sharon } 1198cfbc6c4cSSara Sharon 1199cfbc6c4cSSara Sharon rcu_read_unlock(); 1200724fe771SJohannes Berg 1201724fe771SJohannes Berg return free_queue; 120299448a8cSJohannes Berg } 120399448a8cSJohannes Berg 1204c20e08b0SJohannes Berg static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm, 1205cfbc6c4cSSara Sharon struct ieee80211_sta *sta, u8 ac, int tid) 1206c20e08b0SJohannes Berg { 1207c20e08b0SJohannes Berg struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1208c20e08b0SJohannes Berg struct iwl_trans_txq_scd_cfg cfg = { 1209c20e08b0SJohannes Berg .fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac), 1210c20e08b0SJohannes Berg .sta_id = mvmsta->sta_id, 1211c20e08b0SJohannes Berg .tid = tid, 1212c20e08b0SJohannes Berg .frame_limit = IWL_FRAME_LIMIT, 1213c20e08b0SJohannes Berg }; 1214c20e08b0SJohannes Berg unsigned int wdg_timeout = 1215c20e08b0SJohannes Berg iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 1216c20e08b0SJohannes Berg int queue = -1; 1217c20e08b0SJohannes Berg unsigned long disable_agg_tids = 0; 1218c20e08b0SJohannes Berg enum iwl_mvm_agg_state queue_state; 1219c20e08b0SJohannes Berg bool shared_queue = false, inc_ssn; 1220c20e08b0SJohannes Berg int ssn; 1221c20e08b0SJohannes Berg unsigned long tfd_queue_mask; 1222c20e08b0SJohannes Berg int ret; 1223c20e08b0SJohannes Berg 1224c20e08b0SJohannes Berg lockdep_assert_held(&mvm->mutex); 1225c20e08b0SJohannes Berg 1226c20e08b0SJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1227c20e08b0SJohannes Berg return iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 1228c20e08b0SJohannes Berg 1229c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1230c20e08b0SJohannes Berg tfd_queue_mask = mvmsta->tfd_queue_msk; 123135739348SSara Sharon ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 1232c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1233c20e08b0SJohannes Berg 1234cfbc6c4cSSara Sharon if (tid == IWL_MAX_TID_COUNT) { 1235c20e08b0SJohannes Berg queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 1236c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_MGMT_QUEUE, 1237c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_MGMT_QUEUE); 1238c20e08b0SJohannes Berg if (queue >= IWL_MVM_DQA_MIN_MGMT_QUEUE) 1239c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Found free MGMT queue #%d\n", 1240c20e08b0SJohannes Berg queue); 1241c20e08b0SJohannes Berg 1242c20e08b0SJohannes Berg /* If no such queue is found, we'll use a DATA queue instead */ 1243c20e08b0SJohannes Berg } 1244c20e08b0SJohannes Berg 1245c20e08b0SJohannes Berg if ((queue < 0 && mvmsta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) && 1246c20e08b0SJohannes Berg (mvm->queue_info[mvmsta->reserved_queue].status == 1247724fe771SJohannes Berg IWL_MVM_QUEUE_RESERVED)) { 1248c20e08b0SJohannes Berg queue = mvmsta->reserved_queue; 1249c20e08b0SJohannes Berg mvm->queue_info[queue].reserved = true; 1250c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Using reserved queue #%d\n", queue); 1251c20e08b0SJohannes Berg } 1252c20e08b0SJohannes Berg 1253c20e08b0SJohannes Berg if (queue < 0) 1254c20e08b0SJohannes Berg queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 1255c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 1256c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 1257724fe771SJohannes Berg if (queue < 0) { 1258724fe771SJohannes Berg /* try harder - perhaps kill an inactive queue */ 1259724fe771SJohannes Berg queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id); 1260c20e08b0SJohannes Berg } 1261c20e08b0SJohannes Berg 1262c20e08b0SJohannes Berg /* No free queue - we'll have to share */ 1263c20e08b0SJohannes Berg if (queue <= 0) { 1264c20e08b0SJohannes Berg queue = iwl_mvm_get_shared_queue(mvm, tfd_queue_mask, ac); 1265c20e08b0SJohannes Berg if (queue > 0) { 1266c20e08b0SJohannes Berg shared_queue = true; 1267c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_SHARED; 1268c20e08b0SJohannes Berg } 1269c20e08b0SJohannes Berg } 1270c20e08b0SJohannes Berg 1271c20e08b0SJohannes Berg /* 1272c20e08b0SJohannes Berg * Mark TXQ as ready, even though it hasn't been fully configured yet, 1273c20e08b0SJohannes Berg * to make sure no one else takes it. 1274c20e08b0SJohannes Berg * This will allow avoiding re-acquiring the lock at the end of the 1275c20e08b0SJohannes Berg * configuration. On error we'll mark it back as free. 1276c20e08b0SJohannes Berg */ 1277c20e08b0SJohannes Berg if (queue > 0 && !shared_queue) 1278c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 1279c20e08b0SJohannes Berg 1280c20e08b0SJohannes Berg /* This shouldn't happen - out of queues */ 1281c20e08b0SJohannes Berg if (WARN_ON(queue <= 0)) { 1282c20e08b0SJohannes Berg IWL_ERR(mvm, "No available queues for tid %d on sta_id %d\n", 1283c20e08b0SJohannes Berg tid, cfg.sta_id); 1284c20e08b0SJohannes Berg return queue; 1285c20e08b0SJohannes Berg } 1286c20e08b0SJohannes Berg 1287c20e08b0SJohannes Berg /* 1288c20e08b0SJohannes Berg * Actual en/disablement of aggregations is through the ADD_STA HCMD, 1289c20e08b0SJohannes Berg * but for configuring the SCD to send A-MPDUs we need to mark the queue 1290c20e08b0SJohannes Berg * as aggregatable. 1291c20e08b0SJohannes Berg * Mark all DATA queues as allowing to be aggregated at some point 1292c20e08b0SJohannes Berg */ 1293c20e08b0SJohannes Berg cfg.aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1294c20e08b0SJohannes Berg queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE); 1295c20e08b0SJohannes Berg 1296c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 1297c20e08b0SJohannes Berg "Allocating %squeue #%d to sta %d on tid %d\n", 1298c20e08b0SJohannes Berg shared_queue ? "shared " : "", queue, 1299c20e08b0SJohannes Berg mvmsta->sta_id, tid); 1300c20e08b0SJohannes Berg 1301c20e08b0SJohannes Berg if (shared_queue) { 1302c20e08b0SJohannes Berg /* Disable any open aggs on this queue */ 1303c20e08b0SJohannes Berg disable_agg_tids = iwl_mvm_get_queue_agg_tids(mvm, queue); 1304c20e08b0SJohannes Berg 1305c20e08b0SJohannes Berg if (disable_agg_tids) { 1306c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Disabling aggs on queue %d\n", 1307c20e08b0SJohannes Berg queue); 1308c20e08b0SJohannes Berg iwl_mvm_invalidate_sta_queue(mvm, queue, 1309c20e08b0SJohannes Berg disable_agg_tids, false); 1310c20e08b0SJohannes Berg } 1311c20e08b0SJohannes Berg } 1312c20e08b0SJohannes Berg 1313cfbc6c4cSSara Sharon inc_ssn = iwl_mvm_enable_txq(mvm, sta, queue, ssn, &cfg, wdg_timeout); 1314c20e08b0SJohannes Berg 1315c20e08b0SJohannes Berg /* 1316c20e08b0SJohannes Berg * Mark queue as shared in transport if shared 1317c20e08b0SJohannes Berg * Note this has to be done after queue enablement because enablement 1318c20e08b0SJohannes Berg * can also set this value, and there is no indication there to shared 1319c20e08b0SJohannes Berg * queues 1320c20e08b0SJohannes Berg */ 1321c20e08b0SJohannes Berg if (shared_queue) 1322c20e08b0SJohannes Berg iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 1323c20e08b0SJohannes Berg 1324c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1325c20e08b0SJohannes Berg /* 1326c20e08b0SJohannes Berg * This looks racy, but it is not. We have only one packet for 1327c20e08b0SJohannes Berg * this ra/tid in our Tx path since we stop the Qdisc when we 1328c20e08b0SJohannes Berg * need to allocate a new TFD queue. 1329c20e08b0SJohannes Berg */ 133035739348SSara Sharon if (inc_ssn) { 1331c20e08b0SJohannes Berg mvmsta->tid_data[tid].seq_number += 0x10; 133235739348SSara Sharon ssn = (ssn + 1) & IEEE80211_SCTL_SEQ; 133335739348SSara Sharon } 1334c20e08b0SJohannes Berg mvmsta->tid_data[tid].txq_id = queue; 1335c20e08b0SJohannes Berg mvmsta->tfd_queue_msk |= BIT(queue); 1336c20e08b0SJohannes Berg queue_state = mvmsta->tid_data[tid].state; 1337c20e08b0SJohannes Berg 1338c20e08b0SJohannes Berg if (mvmsta->reserved_queue == queue) 1339c20e08b0SJohannes Berg mvmsta->reserved_queue = IEEE80211_INVAL_HW_QUEUE; 1340c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1341c20e08b0SJohannes Berg 1342c20e08b0SJohannes Berg if (!shared_queue) { 1343c20e08b0SJohannes Berg ret = iwl_mvm_sta_send_to_fw(mvm, sta, true, STA_MODIFY_QUEUES); 1344c20e08b0SJohannes Berg if (ret) 1345c20e08b0SJohannes Berg goto out_err; 1346c20e08b0SJohannes Berg 1347c20e08b0SJohannes Berg /* If we need to re-enable aggregations... */ 1348c20e08b0SJohannes Berg if (queue_state == IWL_AGG_ON) { 1349c20e08b0SJohannes Berg ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 1350c20e08b0SJohannes Berg if (ret) 1351c20e08b0SJohannes Berg goto out_err; 1352c20e08b0SJohannes Berg } 1353c20e08b0SJohannes Berg } else { 1354c20e08b0SJohannes Berg /* Redirect queue, if needed */ 1355cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, ac, ssn, 1356cfbc6c4cSSara Sharon wdg_timeout, false, 1357cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 1358c20e08b0SJohannes Berg if (ret) 1359c20e08b0SJohannes Berg goto out_err; 1360c20e08b0SJohannes Berg } 1361c20e08b0SJohannes Berg 1362c20e08b0SJohannes Berg return 0; 1363c20e08b0SJohannes Berg 1364c20e08b0SJohannes Berg out_err: 1365cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, sta, queue, tid, 0); 1366c20e08b0SJohannes Berg 1367c20e08b0SJohannes Berg return ret; 1368c20e08b0SJohannes Berg } 1369c20e08b0SJohannes Berg 137024afba76SLiad Kaufman static inline u8 iwl_mvm_tid_to_ac_queue(int tid) 137124afba76SLiad Kaufman { 137224afba76SLiad Kaufman if (tid == IWL_MAX_TID_COUNT) 137324afba76SLiad Kaufman return IEEE80211_AC_VO; /* MGMT */ 137424afba76SLiad Kaufman 137524afba76SLiad Kaufman return tid_to_mac80211_ac[tid]; 137624afba76SLiad Kaufman } 137724afba76SLiad Kaufman 137824afba76SLiad Kaufman void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk) 137924afba76SLiad Kaufman { 138024afba76SLiad Kaufman struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, 138124afba76SLiad Kaufman add_stream_wk); 138224afba76SLiad Kaufman 138324afba76SLiad Kaufman mutex_lock(&mvm->mutex); 138424afba76SLiad Kaufman 1385724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 13869f9af3d7SLiad Kaufman 1387cfbc6c4cSSara Sharon while (!list_empty(&mvm->add_stream_txqs)) { 1388cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq; 1389cfbc6c4cSSara Sharon struct ieee80211_txq *txq; 1390cfbc6c4cSSara Sharon u8 tid; 139124afba76SLiad Kaufman 1392cfbc6c4cSSara Sharon mvmtxq = list_first_entry(&mvm->add_stream_txqs, 1393cfbc6c4cSSara Sharon struct iwl_mvm_txq, list); 139424afba76SLiad Kaufman 1395cfbc6c4cSSara Sharon txq = container_of((void *)mvmtxq, struct ieee80211_txq, 1396cfbc6c4cSSara Sharon drv_priv); 1397cfbc6c4cSSara Sharon tid = txq->tid; 1398cfbc6c4cSSara Sharon if (tid == IEEE80211_NUM_TIDS) 1399cfbc6c4cSSara Sharon tid = IWL_MAX_TID_COUNT; 1400cfbc6c4cSSara Sharon 1401cfbc6c4cSSara Sharon iwl_mvm_sta_alloc_queue(mvm, txq->sta, txq->ac, tid); 1402cfbc6c4cSSara Sharon list_del_init(&mvmtxq->list); 1403f5ae2f93SJohannes Berg local_bh_disable(); 1404cfbc6c4cSSara Sharon iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1405f5ae2f93SJohannes Berg local_bh_enable(); 140624afba76SLiad Kaufman } 140724afba76SLiad Kaufman 140824afba76SLiad Kaufman mutex_unlock(&mvm->mutex); 140924afba76SLiad Kaufman } 141024afba76SLiad Kaufman 141124afba76SLiad Kaufman static int iwl_mvm_reserve_sta_stream(struct iwl_mvm *mvm, 1412d5216a28SLiad Kaufman struct ieee80211_sta *sta, 1413d5216a28SLiad Kaufman enum nl80211_iftype vif_type) 141424afba76SLiad Kaufman { 141524afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 141624afba76SLiad Kaufman int queue; 141724afba76SLiad Kaufman 1418396952eeSSara Sharon /* queue reserving is disabled on new TX path */ 1419396952eeSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1420396952eeSSara Sharon return 0; 1421396952eeSSara Sharon 1422724fe771SJohannes Berg /* run the general cleanup/unsharing of queues */ 1423724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 14249794c64fSLiad Kaufman 142524afba76SLiad Kaufman /* Make sure we have free resources for this STA */ 1426d5216a28SLiad Kaufman if (vif_type == NL80211_IFTYPE_STATION && !sta->tdls && 14271c14089eSJohannes Berg !mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].tid_bitmap && 1428cf961e16SLiad Kaufman (mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].status == 1429cf961e16SLiad Kaufman IWL_MVM_QUEUE_FREE)) 1430d5216a28SLiad Kaufman queue = IWL_MVM_DQA_BSS_CLIENT_QUEUE; 1431d5216a28SLiad Kaufman else 14329794c64fSLiad Kaufman queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 14339794c64fSLiad Kaufman IWL_MVM_DQA_MIN_DATA_QUEUE, 143424afba76SLiad Kaufman IWL_MVM_DQA_MAX_DATA_QUEUE); 143524afba76SLiad Kaufman if (queue < 0) { 1436724fe771SJohannes Berg /* try again - this time kick out a queue if needed */ 1437724fe771SJohannes Berg queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id); 1438724fe771SJohannes Berg if (queue < 0) { 143924afba76SLiad Kaufman IWL_ERR(mvm, "No available queues for new station\n"); 144024afba76SLiad Kaufman return -ENOSPC; 1441724fe771SJohannes Berg } 144224afba76SLiad Kaufman } 1443cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_RESERVED; 144424afba76SLiad Kaufman 144524afba76SLiad Kaufman mvmsta->reserved_queue = queue; 144624afba76SLiad Kaufman 144724afba76SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Reserving data queue #%d for sta_id %d\n", 144824afba76SLiad Kaufman queue, mvmsta->sta_id); 144924afba76SLiad Kaufman 145024afba76SLiad Kaufman return 0; 145124afba76SLiad Kaufman } 145224afba76SLiad Kaufman 14538d98ae6eSLiad Kaufman /* 14548d98ae6eSLiad Kaufman * In DQA mode, after a HW restart the queues should be allocated as before, in 14558d98ae6eSLiad Kaufman * order to avoid race conditions when there are shared queues. This function 14568d98ae6eSLiad Kaufman * does the re-mapping and queue allocation. 14578d98ae6eSLiad Kaufman * 14588d98ae6eSLiad Kaufman * Note that re-enabling aggregations isn't done in this function. 14598d98ae6eSLiad Kaufman */ 14608d98ae6eSLiad Kaufman static void iwl_mvm_realloc_queues_after_restart(struct iwl_mvm *mvm, 1461cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 14628d98ae6eSLiad Kaufman { 1463cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1464cfbc6c4cSSara Sharon unsigned int wdg = 14658d98ae6eSLiad Kaufman iwl_mvm_get_wd_timeout(mvm, mvm_sta->vif, false, false); 14668d98ae6eSLiad Kaufman int i; 14678d98ae6eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 14688d98ae6eSLiad Kaufman .sta_id = mvm_sta->sta_id, 14698d98ae6eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 14708d98ae6eSLiad Kaufman }; 14718d98ae6eSLiad Kaufman 147203c902bfSJohannes Berg /* Make sure reserved queue is still marked as such (if allocated) */ 147303c902bfSJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) 14748d98ae6eSLiad Kaufman mvm->queue_info[mvm_sta->reserved_queue].status = 14758d98ae6eSLiad Kaufman IWL_MVM_QUEUE_RESERVED; 14768d98ae6eSLiad Kaufman 14778d98ae6eSLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 14788d98ae6eSLiad Kaufman struct iwl_mvm_tid_data *tid_data = &mvm_sta->tid_data[i]; 14798d98ae6eSLiad Kaufman int txq_id = tid_data->txq_id; 14808d98ae6eSLiad Kaufman int ac; 14818d98ae6eSLiad Kaufman 14826862fceeSSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 14838d98ae6eSLiad Kaufman continue; 14848d98ae6eSLiad Kaufman 14858d98ae6eSLiad Kaufman ac = tid_to_mac80211_ac[i]; 14868d98ae6eSLiad Kaufman 1487310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1488310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 1489310181ecSSara Sharon "Re-mapping sta %d tid %d\n", 1490310181ecSSara Sharon mvm_sta->sta_id, i); 1491cfbc6c4cSSara Sharon txq_id = iwl_mvm_tvqm_enable_txq(mvm, mvm_sta->sta_id, 1492cfbc6c4cSSara Sharon i, wdg); 1493310181ecSSara Sharon tid_data->txq_id = txq_id; 14945d39051aSLiad Kaufman 14955d39051aSLiad Kaufman /* 14965d39051aSLiad Kaufman * Since we don't set the seq number after reset, and HW 14975d39051aSLiad Kaufman * sets it now, FW reset will cause the seq num to start 14985d39051aSLiad Kaufman * at 0 again, so driver will need to update it 14995d39051aSLiad Kaufman * internally as well, so it keeps in sync with real val 15005d39051aSLiad Kaufman */ 15015d39051aSLiad Kaufman tid_data->seq_number = 0; 1502310181ecSSara Sharon } else { 1503310181ecSSara Sharon u16 seq = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 1504310181ecSSara Sharon 15058d98ae6eSLiad Kaufman cfg.tid = i; 1506cf6c6ea3SEmmanuel Grumbach cfg.fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac); 15078d98ae6eSLiad Kaufman cfg.aggregate = (txq_id >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1508310181ecSSara Sharon txq_id == 1509310181ecSSara Sharon IWL_MVM_DQA_BSS_CLIENT_QUEUE); 15108d98ae6eSLiad Kaufman 15118d98ae6eSLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 15128d98ae6eSLiad Kaufman "Re-mapping sta %d tid %d to queue %d\n", 15138d98ae6eSLiad Kaufman mvm_sta->sta_id, i, txq_id); 15148d98ae6eSLiad Kaufman 1515cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, txq_id, seq, &cfg, wdg); 15168d98ae6eSLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_READY; 15178d98ae6eSLiad Kaufman } 151834e10860SSara Sharon } 15198d98ae6eSLiad Kaufman } 15208d98ae6eSLiad Kaufman 1521732d06e9SShaul Triebitz static int iwl_mvm_add_int_sta_common(struct iwl_mvm *mvm, 1522732d06e9SShaul Triebitz struct iwl_mvm_int_sta *sta, 1523732d06e9SShaul Triebitz const u8 *addr, 1524732d06e9SShaul Triebitz u16 mac_id, u16 color) 1525732d06e9SShaul Triebitz { 1526732d06e9SShaul Triebitz struct iwl_mvm_add_sta_cmd cmd; 1527732d06e9SShaul Triebitz int ret; 15283f497de9SLuca Coelho u32 status = ADD_STA_SUCCESS; 1529732d06e9SShaul Triebitz 1530732d06e9SShaul Triebitz lockdep_assert_held(&mvm->mutex); 1531732d06e9SShaul Triebitz 1532732d06e9SShaul Triebitz memset(&cmd, 0, sizeof(cmd)); 1533732d06e9SShaul Triebitz cmd.sta_id = sta->sta_id; 1534732d06e9SShaul Triebitz cmd.mac_id_n_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mac_id, 1535732d06e9SShaul Triebitz color)); 1536732d06e9SShaul Triebitz if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 1537732d06e9SShaul Triebitz cmd.station_type = sta->type; 1538732d06e9SShaul Triebitz 1539732d06e9SShaul Triebitz if (!iwl_mvm_has_new_tx_api(mvm)) 1540732d06e9SShaul Triebitz cmd.tfd_queue_msk = cpu_to_le32(sta->tfd_queue_msk); 1541732d06e9SShaul Triebitz cmd.tid_disable_tx = cpu_to_le16(0xffff); 1542732d06e9SShaul Triebitz 1543732d06e9SShaul Triebitz if (addr) 1544732d06e9SShaul Triebitz memcpy(cmd.addr, addr, ETH_ALEN); 1545732d06e9SShaul Triebitz 1546732d06e9SShaul Triebitz ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1547732d06e9SShaul Triebitz iwl_mvm_add_sta_cmd_size(mvm), 1548732d06e9SShaul Triebitz &cmd, &status); 1549732d06e9SShaul Triebitz if (ret) 1550732d06e9SShaul Triebitz return ret; 1551732d06e9SShaul Triebitz 1552732d06e9SShaul Triebitz switch (status & IWL_ADD_STA_STATUS_MASK) { 1553732d06e9SShaul Triebitz case ADD_STA_SUCCESS: 1554732d06e9SShaul Triebitz IWL_DEBUG_INFO(mvm, "Internal station added.\n"); 1555732d06e9SShaul Triebitz return 0; 1556732d06e9SShaul Triebitz default: 1557732d06e9SShaul Triebitz ret = -EIO; 1558732d06e9SShaul Triebitz IWL_ERR(mvm, "Add internal station failed, status=0x%x\n", 1559732d06e9SShaul Triebitz status); 1560732d06e9SShaul Triebitz break; 1561732d06e9SShaul Triebitz } 1562732d06e9SShaul Triebitz return ret; 1563732d06e9SShaul Triebitz } 1564732d06e9SShaul Triebitz 1565e705c121SKalle Valo int iwl_mvm_add_sta(struct iwl_mvm *mvm, 1566e705c121SKalle Valo struct ieee80211_vif *vif, 1567e705c121SKalle Valo struct ieee80211_sta *sta) 1568e705c121SKalle Valo { 1569e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1570e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1571a571f5f6SSara Sharon struct iwl_mvm_rxq_dup_data *dup_data; 1572e705c121SKalle Valo int i, ret, sta_id; 1573732d06e9SShaul Triebitz bool sta_update = false; 1574732d06e9SShaul Triebitz unsigned int sta_flags = 0; 1575e705c121SKalle Valo 1576e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1577e705c121SKalle Valo 1578e705c121SKalle Valo if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1579e705c121SKalle Valo sta_id = iwl_mvm_find_free_sta_id(mvm, 1580e705c121SKalle Valo ieee80211_vif_type_p2p(vif)); 1581e705c121SKalle Valo else 1582e705c121SKalle Valo sta_id = mvm_sta->sta_id; 1583e705c121SKalle Valo 15840ae98812SSara Sharon if (sta_id == IWL_MVM_INVALID_STA) 1585e705c121SKalle Valo return -ENOSPC; 1586e705c121SKalle Valo 1587e705c121SKalle Valo spin_lock_init(&mvm_sta->lock); 1588e705c121SKalle Valo 1589c8f54701SJohannes Berg /* if this is a HW restart re-alloc existing queues */ 1590c8f54701SJohannes Berg if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1591732d06e9SShaul Triebitz struct iwl_mvm_int_sta tmp_sta = { 1592732d06e9SShaul Triebitz .sta_id = sta_id, 1593732d06e9SShaul Triebitz .type = mvm_sta->sta_type, 1594732d06e9SShaul Triebitz }; 1595732d06e9SShaul Triebitz 1596732d06e9SShaul Triebitz /* 1597732d06e9SShaul Triebitz * First add an empty station since allocating 1598732d06e9SShaul Triebitz * a queue requires a valid station 1599732d06e9SShaul Triebitz */ 1600732d06e9SShaul Triebitz ret = iwl_mvm_add_int_sta_common(mvm, &tmp_sta, sta->addr, 1601732d06e9SShaul Triebitz mvmvif->id, mvmvif->color); 1602732d06e9SShaul Triebitz if (ret) 1603732d06e9SShaul Triebitz goto err; 1604732d06e9SShaul Triebitz 1605cfbc6c4cSSara Sharon iwl_mvm_realloc_queues_after_restart(mvm, sta); 1606732d06e9SShaul Triebitz sta_update = true; 1607732d06e9SShaul Triebitz sta_flags = iwl_mvm_has_new_tx_api(mvm) ? 0 : STA_MODIFY_QUEUES; 16088d98ae6eSLiad Kaufman goto update_fw; 16098d98ae6eSLiad Kaufman } 16108d98ae6eSLiad Kaufman 1611e705c121SKalle Valo mvm_sta->sta_id = sta_id; 1612e705c121SKalle Valo mvm_sta->mac_id_n_color = FW_CMD_ID_AND_COLOR(mvmvif->id, 1613e705c121SKalle Valo mvmvif->color); 1614e705c121SKalle Valo mvm_sta->vif = vif; 1615a58bb468SLiad Kaufman if (!mvm->trans->cfg->gen2) 1616e705c121SKalle Valo mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_DEF; 1617a58bb468SLiad Kaufman else 1618a58bb468SLiad Kaufman mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF; 1619e705c121SKalle Valo mvm_sta->tx_protection = 0; 1620e705c121SKalle Valo mvm_sta->tt_tx_protection = false; 1621ced19f26SSara Sharon mvm_sta->sta_type = sta->tdls ? IWL_STA_TDLS_LINK : IWL_STA_LINK; 1622e705c121SKalle Valo 1623e705c121SKalle Valo /* HW restart, don't assume the memory has been zeroed */ 1624e705c121SKalle Valo mvm_sta->tid_disable_agg = 0xffff; /* No aggs at first */ 1625e705c121SKalle Valo mvm_sta->tfd_queue_msk = 0; 1626e705c121SKalle Valo 1627e705c121SKalle Valo /* for HW restart - reset everything but the sequence number */ 162824afba76SLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 1629e705c121SKalle Valo u16 seq = mvm_sta->tid_data[i].seq_number; 1630e705c121SKalle Valo memset(&mvm_sta->tid_data[i], 0, sizeof(mvm_sta->tid_data[i])); 1631e705c121SKalle Valo mvm_sta->tid_data[i].seq_number = seq; 163224afba76SLiad Kaufman 163324afba76SLiad Kaufman /* 163424afba76SLiad Kaufman * Mark all queues for this STA as unallocated and defer TX 163524afba76SLiad Kaufman * frames until the queue is allocated 163624afba76SLiad Kaufman */ 16376862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 1638e705c121SKalle Valo } 1639cfbc6c4cSSara Sharon 1640cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1641cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1642cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1643cfbc6c4cSSara Sharon 1644cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 1645cfbc6c4cSSara Sharon INIT_LIST_HEAD(&mvmtxq->list); 1646fba8248eSSara Sharon atomic_set(&mvmtxq->tx_request, 0); 1647cfbc6c4cSSara Sharon } 1648cfbc6c4cSSara Sharon 1649e705c121SKalle Valo mvm_sta->agg_tids = 0; 1650e705c121SKalle Valo 1651a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && 1652a571f5f6SSara Sharon !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 165392c4dca6SJohannes Berg int q; 165492c4dca6SJohannes Berg 1655a571f5f6SSara Sharon dup_data = kcalloc(mvm->trans->num_rx_queues, 165692c4dca6SJohannes Berg sizeof(*dup_data), GFP_KERNEL); 1657a571f5f6SSara Sharon if (!dup_data) 1658a571f5f6SSara Sharon return -ENOMEM; 165992c4dca6SJohannes Berg /* 166092c4dca6SJohannes Berg * Initialize all the last_seq values to 0xffff which can never 166192c4dca6SJohannes Berg * compare equal to the frame's seq_ctrl in the check in 166292c4dca6SJohannes Berg * iwl_mvm_is_dup() since the lower 4 bits are the fragment 166392c4dca6SJohannes Berg * number and fragmented packets don't reach that function. 166492c4dca6SJohannes Berg * 166592c4dca6SJohannes Berg * This thus allows receiving a packet with seqno 0 and the 166692c4dca6SJohannes Berg * retry bit set as the very first packet on a new TID. 166792c4dca6SJohannes Berg */ 166892c4dca6SJohannes Berg for (q = 0; q < mvm->trans->num_rx_queues; q++) 166992c4dca6SJohannes Berg memset(dup_data[q].last_seq, 0xff, 167092c4dca6SJohannes Berg sizeof(dup_data[q].last_seq)); 1671a571f5f6SSara Sharon mvm_sta->dup_data = dup_data; 1672a571f5f6SSara Sharon } 1673a571f5f6SSara Sharon 1674c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 1675d5216a28SLiad Kaufman ret = iwl_mvm_reserve_sta_stream(mvm, sta, 1676d5216a28SLiad Kaufman ieee80211_vif_type_p2p(vif)); 167724afba76SLiad Kaufman if (ret) 167824afba76SLiad Kaufman goto err; 167924afba76SLiad Kaufman } 168024afba76SLiad Kaufman 16819f66a397SGregory Greenman /* 16829f66a397SGregory Greenman * if rs is registered with mac80211, then "add station" will be handled 16839f66a397SGregory Greenman * via the corresponding ops, otherwise need to notify rate scaling here 16849f66a397SGregory Greenman */ 16854243edb4SEmmanuel Grumbach if (iwl_mvm_has_tlc_offload(mvm)) 16869f66a397SGregory Greenman iwl_mvm_rs_add_sta(mvm, mvm_sta); 16870f8084cdSMordechay Goodstein else 16880f8084cdSMordechay Goodstein mutex_init(&mvm_sta->lq_sta.rs_drv.mutex); 16890f8084cdSMordechay Goodstein 16900f8084cdSMordechay Goodstein INIT_WORK(&mvm_sta->rs_init_wk, iwl_mvm_rs_init_wk); 16919f66a397SGregory Greenman 16920dde2440SAvraham Stern iwl_mvm_toggle_tx_ant(mvm, &mvm_sta->tx_ant); 16930dde2440SAvraham Stern 16948d98ae6eSLiad Kaufman update_fw: 1695732d06e9SShaul Triebitz ret = iwl_mvm_sta_send_to_fw(mvm, sta, sta_update, sta_flags); 1696e705c121SKalle Valo if (ret) 1697e705c121SKalle Valo goto err; 1698e705c121SKalle Valo 1699e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) { 1700e705c121SKalle Valo if (!sta->tdls) { 17010ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id != IWL_MVM_INVALID_STA); 1702e705c121SKalle Valo mvmvif->ap_sta_id = sta_id; 1703e705c121SKalle Valo } else { 17040ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id == IWL_MVM_INVALID_STA); 1705e705c121SKalle Valo } 1706e705c121SKalle Valo } 1707e705c121SKalle Valo 1708e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], sta); 1709e705c121SKalle Valo 1710e705c121SKalle Valo return 0; 1711e705c121SKalle Valo 1712e705c121SKalle Valo err: 1713e705c121SKalle Valo return ret; 1714e705c121SKalle Valo } 1715e705c121SKalle Valo 1716e705c121SKalle Valo int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, 1717e705c121SKalle Valo bool drain) 1718e705c121SKalle Valo { 1719e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 1720e705c121SKalle Valo int ret; 1721e705c121SKalle Valo u32 status; 1722e705c121SKalle Valo 1723e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1724e705c121SKalle Valo 1725e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 1726e705c121SKalle Valo cmd.sta_id = mvmsta->sta_id; 1727e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 1728e705c121SKalle Valo cmd.station_flags = drain ? cpu_to_le32(STA_FLG_DRAIN_FLOW) : 0; 1729e705c121SKalle Valo cmd.station_flags_msk = cpu_to_le32(STA_FLG_DRAIN_FLOW); 1730e705c121SKalle Valo 1731e705c121SKalle Valo status = ADD_STA_SUCCESS; 1732854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1733854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 1734e705c121SKalle Valo &cmd, &status); 1735e705c121SKalle Valo if (ret) 1736e705c121SKalle Valo return ret; 1737e705c121SKalle Valo 1738837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 1739e705c121SKalle Valo case ADD_STA_SUCCESS: 1740e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "Frames for staid %d will drained in fw\n", 1741e705c121SKalle Valo mvmsta->sta_id); 1742e705c121SKalle Valo break; 1743e705c121SKalle Valo default: 1744e705c121SKalle Valo ret = -EIO; 1745e705c121SKalle Valo IWL_ERR(mvm, "Couldn't drain frames for staid %d\n", 1746e705c121SKalle Valo mvmsta->sta_id); 1747e705c121SKalle Valo break; 1748e705c121SKalle Valo } 1749e705c121SKalle Valo 1750e705c121SKalle Valo return ret; 1751e705c121SKalle Valo } 1752e705c121SKalle Valo 1753e705c121SKalle Valo /* 1754e705c121SKalle Valo * Remove a station from the FW table. Before sending the command to remove 1755e705c121SKalle Valo * the station validate that the station is indeed known to the driver (sanity 1756e705c121SKalle Valo * only). 1757e705c121SKalle Valo */ 1758e705c121SKalle Valo static int iwl_mvm_rm_sta_common(struct iwl_mvm *mvm, u8 sta_id) 1759e705c121SKalle Valo { 1760e705c121SKalle Valo struct ieee80211_sta *sta; 1761e705c121SKalle Valo struct iwl_mvm_rm_sta_cmd rm_sta_cmd = { 1762e705c121SKalle Valo .sta_id = sta_id, 1763e705c121SKalle Valo }; 1764e705c121SKalle Valo int ret; 1765e705c121SKalle Valo 1766e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 1767e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1768e705c121SKalle Valo 1769e705c121SKalle Valo /* Note: internal stations are marked as error values */ 1770e705c121SKalle Valo if (!sta) { 1771e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 1772e705c121SKalle Valo return -EINVAL; 1773e705c121SKalle Valo } 1774e705c121SKalle Valo 1775e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, REMOVE_STA, 0, 1776e705c121SKalle Valo sizeof(rm_sta_cmd), &rm_sta_cmd); 1777e705c121SKalle Valo if (ret) { 1778e705c121SKalle Valo IWL_ERR(mvm, "Failed to remove station. Id=%d\n", sta_id); 1779e705c121SKalle Valo return ret; 1780e705c121SKalle Valo } 1781e705c121SKalle Valo 1782e705c121SKalle Valo return 0; 1783e705c121SKalle Valo } 1784e705c121SKalle Valo 178524afba76SLiad Kaufman static void iwl_mvm_disable_sta_queues(struct iwl_mvm *mvm, 178624afba76SLiad Kaufman struct ieee80211_vif *vif, 1787cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 178824afba76SLiad Kaufman { 1789cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 179024afba76SLiad Kaufman int i; 179124afba76SLiad Kaufman 179224afba76SLiad Kaufman lockdep_assert_held(&mvm->mutex); 179324afba76SLiad Kaufman 179424afba76SLiad Kaufman for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 17956862fceeSSara Sharon if (mvm_sta->tid_data[i].txq_id == IWL_MVM_INVALID_QUEUE) 179624afba76SLiad Kaufman continue; 179724afba76SLiad Kaufman 1798cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, sta, mvm_sta->tid_data[i].txq_id, i, 1799cfbc6c4cSSara Sharon 0); 18006862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 180124afba76SLiad Kaufman } 1802cfbc6c4cSSara Sharon 1803cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1804cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1805cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1806cfbc6c4cSSara Sharon 1807cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 1808cfbc6c4cSSara Sharon } 180924afba76SLiad Kaufman } 181024afba76SLiad Kaufman 1811d6d517b7SSara Sharon int iwl_mvm_wait_sta_queues_empty(struct iwl_mvm *mvm, 1812d6d517b7SSara Sharon struct iwl_mvm_sta *mvm_sta) 1813d6d517b7SSara Sharon { 1814bec9522aSSharon Dvir int i; 1815d6d517b7SSara Sharon 1816d6d517b7SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 1817d6d517b7SSara Sharon u16 txq_id; 1818bec9522aSSharon Dvir int ret; 1819d6d517b7SSara Sharon 1820d6d517b7SSara Sharon spin_lock_bh(&mvm_sta->lock); 1821d6d517b7SSara Sharon txq_id = mvm_sta->tid_data[i].txq_id; 1822d6d517b7SSara Sharon spin_unlock_bh(&mvm_sta->lock); 1823d6d517b7SSara Sharon 1824d6d517b7SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 1825d6d517b7SSara Sharon continue; 1826d6d517b7SSara Sharon 1827d6d517b7SSara Sharon ret = iwl_trans_wait_txq_empty(mvm->trans, txq_id); 1828d6d517b7SSara Sharon if (ret) 1829bec9522aSSharon Dvir return ret; 1830d6d517b7SSara Sharon } 1831d6d517b7SSara Sharon 1832bec9522aSSharon Dvir return 0; 1833d6d517b7SSara Sharon } 1834d6d517b7SSara Sharon 1835e705c121SKalle Valo int iwl_mvm_rm_sta(struct iwl_mvm *mvm, 1836e705c121SKalle Valo struct ieee80211_vif *vif, 1837e705c121SKalle Valo struct ieee80211_sta *sta) 1838e705c121SKalle Valo { 1839e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1840e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 184194c3e614SSara Sharon u8 sta_id = mvm_sta->sta_id; 1842e705c121SKalle Valo int ret; 1843e705c121SKalle Valo 1844e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1845e705c121SKalle Valo 1846a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm)) 1847a571f5f6SSara Sharon kfree(mvm_sta->dup_data); 1848a571f5f6SSara Sharon 1849e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, true); 1850e705c121SKalle Valo if (ret) 1851e705c121SKalle Valo return ret; 1852c8f54701SJohannes Berg 18530f8084cdSMordechay Goodstein cancel_work_sync(&mvm_sta->rs_init_wk); 18540f8084cdSMordechay Goodstein 1855e705c121SKalle Valo /* flush its queues here since we are freeing mvm_sta */ 1856d49394a1SSara Sharon ret = iwl_mvm_flush_sta(mvm, mvm_sta, false, 0); 1857e705c121SKalle Valo if (ret) 1858e705c121SKalle Valo return ret; 1859d6d517b7SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1860d6d517b7SSara Sharon ret = iwl_mvm_wait_sta_queues_empty(mvm, mvm_sta); 1861d6d517b7SSara Sharon } else { 1862d6d517b7SSara Sharon u32 q_mask = mvm_sta->tfd_queue_msk; 1863d6d517b7SSara Sharon 1864a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 1865d6d517b7SSara Sharon q_mask); 1866d6d517b7SSara Sharon } 1867e705c121SKalle Valo if (ret) 1868e705c121SKalle Valo return ret; 1869c8f54701SJohannes Berg 1870e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, false); 1871e705c121SKalle Valo 1872cfbc6c4cSSara Sharon iwl_mvm_disable_sta_queues(mvm, vif, sta); 187356214749SLiad Kaufman 187456214749SLiad Kaufman /* If there is a TXQ still marked as reserved - free it */ 1875c8f54701SJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) { 1876a0315deaSLiad Kaufman u8 reserved_txq = mvm_sta->reserved_queue; 1877a0315deaSLiad Kaufman enum iwl_mvm_queue_status *status; 1878a0315deaSLiad Kaufman 1879a0315deaSLiad Kaufman /* 1880a0315deaSLiad Kaufman * If no traffic has gone through the reserved TXQ - it 1881a0315deaSLiad Kaufman * is still marked as IWL_MVM_QUEUE_RESERVED, and 1882a0315deaSLiad Kaufman * should be manually marked as free again 1883a0315deaSLiad Kaufman */ 1884a0315deaSLiad Kaufman status = &mvm->queue_info[reserved_txq].status; 1885a0315deaSLiad Kaufman if (WARN((*status != IWL_MVM_QUEUE_RESERVED) && 1886a0315deaSLiad Kaufman (*status != IWL_MVM_QUEUE_FREE), 1887a0315deaSLiad Kaufman "sta_id %d reserved txq %d status %d", 1888f3f240f9SJohannes Berg sta_id, reserved_txq, *status)) 1889a0315deaSLiad Kaufman return -EINVAL; 1890a0315deaSLiad Kaufman 1891a0315deaSLiad Kaufman *status = IWL_MVM_QUEUE_FREE; 1892a0315deaSLiad Kaufman } 1893a0315deaSLiad Kaufman 1894e3118ad7SLiad Kaufman if (vif->type == NL80211_IFTYPE_STATION && 189594c3e614SSara Sharon mvmvif->ap_sta_id == sta_id) { 1896e3118ad7SLiad Kaufman /* if associated - we can't remove the AP STA now */ 1897e705c121SKalle Valo if (vif->bss_conf.assoc) 1898e705c121SKalle Valo return ret; 1899e705c121SKalle Valo 1900e705c121SKalle Valo /* unassoc - go ahead - remove the AP STA now */ 19010ae98812SSara Sharon mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1902e705c121SKalle Valo 1903e705c121SKalle Valo /* clear d0i3_ap_sta_id if no longer relevant */ 190494c3e614SSara Sharon if (mvm->d0i3_ap_sta_id == sta_id) 19050ae98812SSara Sharon mvm->d0i3_ap_sta_id = IWL_MVM_INVALID_STA; 1906e705c121SKalle Valo } 1907e705c121SKalle Valo 1908e705c121SKalle Valo /* 1909e705c121SKalle Valo * This shouldn't happen - the TDLS channel switch should be canceled 1910e705c121SKalle Valo * before the STA is removed. 1911e705c121SKalle Valo */ 191294c3e614SSara Sharon if (WARN_ON_ONCE(mvm->tdls_cs.peer.sta_id == sta_id)) { 19130ae98812SSara Sharon mvm->tdls_cs.peer.sta_id = IWL_MVM_INVALID_STA; 1914e705c121SKalle Valo cancel_delayed_work(&mvm->tdls_cs.dwork); 1915e705c121SKalle Valo } 1916e705c121SKalle Valo 1917e705c121SKalle Valo /* 1918e705c121SKalle Valo * Make sure that the tx response code sees the station as -EBUSY and 1919e705c121SKalle Valo * calls the drain worker. 1920e705c121SKalle Valo */ 1921e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 1922e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 1923e705c121SKalle Valo 1924e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvm_sta->sta_id); 1925e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[mvm_sta->sta_id], NULL); 1926e705c121SKalle Valo 1927e705c121SKalle Valo return ret; 1928e705c121SKalle Valo } 1929e705c121SKalle Valo 1930e705c121SKalle Valo int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm, 1931e705c121SKalle Valo struct ieee80211_vif *vif, 1932e705c121SKalle Valo u8 sta_id) 1933e705c121SKalle Valo { 1934e705c121SKalle Valo int ret = iwl_mvm_rm_sta_common(mvm, sta_id); 1935e705c121SKalle Valo 1936e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1937e705c121SKalle Valo 1938e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], NULL); 1939e705c121SKalle Valo return ret; 1940e705c121SKalle Valo } 1941e705c121SKalle Valo 19420e39eb03SChaya Rachel Ivgi int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, 1943e705c121SKalle Valo struct iwl_mvm_int_sta *sta, 1944ced19f26SSara Sharon u32 qmask, enum nl80211_iftype iftype, 1945ced19f26SSara Sharon enum iwl_sta_type type) 1946e705c121SKalle Valo { 1947df65c8d1SAvraham Stern if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1948df65c8d1SAvraham Stern sta->sta_id == IWL_MVM_INVALID_STA) { 1949e705c121SKalle Valo sta->sta_id = iwl_mvm_find_free_sta_id(mvm, iftype); 19500ae98812SSara Sharon if (WARN_ON_ONCE(sta->sta_id == IWL_MVM_INVALID_STA)) 1951e705c121SKalle Valo return -ENOSPC; 1952e705c121SKalle Valo } 1953e705c121SKalle Valo 1954e705c121SKalle Valo sta->tfd_queue_msk = qmask; 1955ced19f26SSara Sharon sta->type = type; 1956e705c121SKalle Valo 1957e705c121SKalle Valo /* put a non-NULL value so iterating over the stations won't stop */ 1958e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta->sta_id], ERR_PTR(-EINVAL)); 1959e705c121SKalle Valo return 0; 1960e705c121SKalle Valo } 1961e705c121SKalle Valo 196226d6c16bSSara Sharon void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta) 1963e705c121SKalle Valo { 1964e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta->sta_id], NULL); 1965e705c121SKalle Valo memset(sta, 0, sizeof(struct iwl_mvm_int_sta)); 19660ae98812SSara Sharon sta->sta_id = IWL_MVM_INVALID_STA; 1967e705c121SKalle Valo } 1968e705c121SKalle Valo 1969b13f43a4SEmmanuel Grumbach static void iwl_mvm_enable_aux_snif_queue(struct iwl_mvm *mvm, u16 *queue, 1970b13f43a4SEmmanuel Grumbach u8 sta_id, u8 fifo) 1971e705c121SKalle Valo { 1972e705c121SKalle Valo unsigned int wdg_timeout = iwlmvm_mod_params.tfd_q_hang_detect ? 1973e705c121SKalle Valo mvm->cfg->base_params->wd_timeout : 1974e705c121SKalle Valo IWL_WATCHDOG_DISABLED; 1975e705c121SKalle Valo 1976310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1977b13f43a4SEmmanuel Grumbach int tvqm_queue = 1978cfbc6c4cSSara Sharon iwl_mvm_tvqm_enable_txq(mvm, sta_id, 1979310181ecSSara Sharon IWL_MAX_TID_COUNT, 1980310181ecSSara Sharon wdg_timeout); 1981b13f43a4SEmmanuel Grumbach *queue = tvqm_queue; 1982c8f54701SJohannes Berg } else { 198328d0793eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 1984b13f43a4SEmmanuel Grumbach .fifo = fifo, 1985b13f43a4SEmmanuel Grumbach .sta_id = sta_id, 198628d0793eSLiad Kaufman .tid = IWL_MAX_TID_COUNT, 198728d0793eSLiad Kaufman .aggregate = false, 198828d0793eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 198928d0793eSLiad Kaufman }; 199028d0793eSLiad Kaufman 1991cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, *queue, 0, &cfg, wdg_timeout); 199228d0793eSLiad Kaufman } 1993c5a719eeSSara Sharon } 1994c5a719eeSSara Sharon 1995c5a719eeSSara Sharon int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm) 1996c5a719eeSSara Sharon { 1997c5a719eeSSara Sharon int ret; 1998c5a719eeSSara Sharon 1999c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2000c5a719eeSSara Sharon 2001c5a719eeSSara Sharon /* Allocate aux station and assign to it the aux queue */ 2002c5a719eeSSara Sharon ret = iwl_mvm_allocate_int_sta(mvm, &mvm->aux_sta, BIT(mvm->aux_queue), 2003ced19f26SSara Sharon NL80211_IFTYPE_UNSPECIFIED, 2004ced19f26SSara Sharon IWL_STA_AUX_ACTIVITY); 2005c5a719eeSSara Sharon if (ret) 2006c5a719eeSSara Sharon return ret; 2007c5a719eeSSara Sharon 2008c5a719eeSSara Sharon /* Map Aux queue to fifo - needs to happen before adding Aux station */ 2009c5a719eeSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) 2010b13f43a4SEmmanuel Grumbach iwl_mvm_enable_aux_snif_queue(mvm, &mvm->aux_queue, 2011b13f43a4SEmmanuel Grumbach mvm->aux_sta.sta_id, 2012b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_MCAST); 201328d0793eSLiad Kaufman 2014e705c121SKalle Valo ret = iwl_mvm_add_int_sta_common(mvm, &mvm->aux_sta, NULL, 2015e705c121SKalle Valo MAC_INDEX_AUX, 0); 2016c5a719eeSSara Sharon if (ret) { 2017e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2018e705c121SKalle Valo return ret; 2019e705c121SKalle Valo } 2020e705c121SKalle Valo 2021c5a719eeSSara Sharon /* 20222f7a3863SLuca Coelho * For 22000 firmware and on we cannot add queue to a station unknown 2023c5a719eeSSara Sharon * to firmware so enable queue here - after the station was added 2024c5a719eeSSara Sharon */ 2025c5a719eeSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 2026b13f43a4SEmmanuel Grumbach iwl_mvm_enable_aux_snif_queue(mvm, &mvm->aux_queue, 2027b13f43a4SEmmanuel Grumbach mvm->aux_sta.sta_id, 2028b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_MCAST); 2029c5a719eeSSara Sharon 2030c5a719eeSSara Sharon return 0; 2031c5a719eeSSara Sharon } 2032c5a719eeSSara Sharon 20330e39eb03SChaya Rachel Ivgi int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 20340e39eb03SChaya Rachel Ivgi { 20350e39eb03SChaya Rachel Ivgi struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2036b13f43a4SEmmanuel Grumbach int ret; 20370e39eb03SChaya Rachel Ivgi 20380e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 2039b13f43a4SEmmanuel Grumbach 2040b13f43a4SEmmanuel Grumbach /* Map snif queue to fifo - must happen before adding snif station */ 2041b13f43a4SEmmanuel Grumbach if (!iwl_mvm_has_new_tx_api(mvm)) 2042b13f43a4SEmmanuel Grumbach iwl_mvm_enable_aux_snif_queue(mvm, &mvm->snif_queue, 2043b13f43a4SEmmanuel Grumbach mvm->snif_sta.sta_id, 2044b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_BE); 2045b13f43a4SEmmanuel Grumbach 2046b13f43a4SEmmanuel Grumbach ret = iwl_mvm_add_int_sta_common(mvm, &mvm->snif_sta, vif->addr, 20470e39eb03SChaya Rachel Ivgi mvmvif->id, 0); 2048b13f43a4SEmmanuel Grumbach if (ret) 2049b13f43a4SEmmanuel Grumbach return ret; 2050b13f43a4SEmmanuel Grumbach 2051b13f43a4SEmmanuel Grumbach /* 2052b13f43a4SEmmanuel Grumbach * For 22000 firmware and on we cannot add queue to a station unknown 2053b13f43a4SEmmanuel Grumbach * to firmware so enable queue here - after the station was added 2054b13f43a4SEmmanuel Grumbach */ 2055b13f43a4SEmmanuel Grumbach if (iwl_mvm_has_new_tx_api(mvm)) 2056b13f43a4SEmmanuel Grumbach iwl_mvm_enable_aux_snif_queue(mvm, &mvm->snif_queue, 2057b13f43a4SEmmanuel Grumbach mvm->snif_sta.sta_id, 2058b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_BE); 2059b13f43a4SEmmanuel Grumbach 2060b13f43a4SEmmanuel Grumbach return 0; 20610e39eb03SChaya Rachel Ivgi } 20620e39eb03SChaya Rachel Ivgi 20630e39eb03SChaya Rachel Ivgi int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 20640e39eb03SChaya Rachel Ivgi { 20650e39eb03SChaya Rachel Ivgi int ret; 20660e39eb03SChaya Rachel Ivgi 20670e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 20680e39eb03SChaya Rachel Ivgi 2069cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, NULL, mvm->snif_queue, IWL_MAX_TID_COUNT, 0); 20700e39eb03SChaya Rachel Ivgi ret = iwl_mvm_rm_sta_common(mvm, mvm->snif_sta.sta_id); 20710e39eb03SChaya Rachel Ivgi if (ret) 20720e39eb03SChaya Rachel Ivgi IWL_WARN(mvm, "Failed sending remove station\n"); 20730e39eb03SChaya Rachel Ivgi 20740e39eb03SChaya Rachel Ivgi return ret; 20750e39eb03SChaya Rachel Ivgi } 20760e39eb03SChaya Rachel Ivgi 20770e39eb03SChaya Rachel Ivgi void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm) 20780e39eb03SChaya Rachel Ivgi { 20790e39eb03SChaya Rachel Ivgi iwl_mvm_dealloc_int_sta(mvm, &mvm->snif_sta); 20800e39eb03SChaya Rachel Ivgi } 20810e39eb03SChaya Rachel Ivgi 2082e705c121SKalle Valo void iwl_mvm_del_aux_sta(struct iwl_mvm *mvm) 2083e705c121SKalle Valo { 2084e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2085e705c121SKalle Valo 2086e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2087e705c121SKalle Valo } 2088e705c121SKalle Valo 2089e705c121SKalle Valo /* 2090e705c121SKalle Valo * Send the add station command for the vif's broadcast station. 2091e705c121SKalle Valo * Assumes that the station was already allocated. 2092e705c121SKalle Valo * 2093e705c121SKalle Valo * @mvm: the mvm component 2094e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2095e705c121SKalle Valo * @bsta: the broadcast station to add. 2096e705c121SKalle Valo */ 2097e705c121SKalle Valo int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2098e705c121SKalle Valo { 2099e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2100e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 2101e705c121SKalle Valo static const u8 _baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; 2102e705c121SKalle Valo const u8 *baddr = _baddr; 21037daa7624SJohannes Berg int queue; 2104df88c08dSLiad Kaufman int ret; 2105c5a719eeSSara Sharon unsigned int wdg_timeout = 2106c5a719eeSSara Sharon iwl_mvm_get_wd_timeout(mvm, vif, false, false); 2107de24f638SLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 2108de24f638SLiad Kaufman .fifo = IWL_MVM_TX_FIFO_VO, 2109de24f638SLiad Kaufman .sta_id = mvmvif->bcast_sta.sta_id, 2110de24f638SLiad Kaufman .tid = IWL_MAX_TID_COUNT, 2111de24f638SLiad Kaufman .aggregate = false, 2112de24f638SLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 2113de24f638SLiad Kaufman }; 2114de24f638SLiad Kaufman 2115c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2116c5a719eeSSara Sharon 2117c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 21184d339989SLiad Kaufman if (vif->type == NL80211_IFTYPE_AP || 2119f8510d67SNathan Chancellor vif->type == NL80211_IFTYPE_ADHOC) { 212049f71713SSara Sharon queue = mvm->probe_queue; 2121f8510d67SNathan Chancellor } else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 212249f71713SSara Sharon queue = mvm->p2p_dev_queue; 2123f8510d67SNathan Chancellor } else { 2124f8510d67SNathan Chancellor WARN(1, "Missing required TXQ for adding bcast STA\n"); 2125de24f638SLiad Kaufman return -EINVAL; 2126f8510d67SNathan Chancellor } 2127de24f638SLiad Kaufman 2128df88c08dSLiad Kaufman bsta->tfd_queue_msk |= BIT(queue); 2129c5a719eeSSara Sharon 2130cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 2131de24f638SLiad Kaufman } 2132de24f638SLiad Kaufman 2133e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_ADHOC) 2134e705c121SKalle Valo baddr = vif->bss_conf.bssid; 2135e705c121SKalle Valo 21360ae98812SSara Sharon if (WARN_ON_ONCE(bsta->sta_id == IWL_MVM_INVALID_STA)) 2137e705c121SKalle Valo return -ENOSPC; 2138e705c121SKalle Valo 2139df88c08dSLiad Kaufman ret = iwl_mvm_add_int_sta_common(mvm, bsta, baddr, 2140e705c121SKalle Valo mvmvif->id, mvmvif->color); 2141df88c08dSLiad Kaufman if (ret) 2142df88c08dSLiad Kaufman return ret; 2143df88c08dSLiad Kaufman 2144df88c08dSLiad Kaufman /* 21452f7a3863SLuca Coelho * For 22000 firmware and on we cannot add queue to a station unknown 2146c5a719eeSSara Sharon * to firmware so enable queue here - after the station was added 2147df88c08dSLiad Kaufman */ 2148310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 2149cfbc6c4cSSara Sharon queue = iwl_mvm_tvqm_enable_txq(mvm, bsta->sta_id, 2150310181ecSSara Sharon IWL_MAX_TID_COUNT, 2151c5a719eeSSara Sharon wdg_timeout); 21527daa7624SJohannes Berg 21537b758a11SLuca Coelho if (vif->type == NL80211_IFTYPE_AP || 21547b758a11SLuca Coelho vif->type == NL80211_IFTYPE_ADHOC) 2155310181ecSSara Sharon mvm->probe_queue = queue; 2156310181ecSSara Sharon else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 2157310181ecSSara Sharon mvm->p2p_dev_queue = queue; 2158310181ecSSara Sharon } 2159df88c08dSLiad Kaufman 2160df88c08dSLiad Kaufman return 0; 2161df88c08dSLiad Kaufman } 2162df88c08dSLiad Kaufman 2163df88c08dSLiad Kaufman static void iwl_mvm_free_bcast_sta_queues(struct iwl_mvm *mvm, 2164df88c08dSLiad Kaufman struct ieee80211_vif *vif) 2165df88c08dSLiad Kaufman { 2166df88c08dSLiad Kaufman struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2167d167e81aSMordechai Goodstein int queue; 2168df88c08dSLiad Kaufman 2169df88c08dSLiad Kaufman lockdep_assert_held(&mvm->mutex); 2170df88c08dSLiad Kaufman 2171d49394a1SSara Sharon iwl_mvm_flush_sta(mvm, &mvmvif->bcast_sta, true, 0); 2172d49394a1SSara Sharon 2173d167e81aSMordechai Goodstein switch (vif->type) { 2174d167e81aSMordechai Goodstein case NL80211_IFTYPE_AP: 2175d167e81aSMordechai Goodstein case NL80211_IFTYPE_ADHOC: 2176d167e81aSMordechai Goodstein queue = mvm->probe_queue; 2177d167e81aSMordechai Goodstein break; 2178d167e81aSMordechai Goodstein case NL80211_IFTYPE_P2P_DEVICE: 2179d167e81aSMordechai Goodstein queue = mvm->p2p_dev_queue; 2180d167e81aSMordechai Goodstein break; 2181d167e81aSMordechai Goodstein default: 2182d167e81aSMordechai Goodstein WARN(1, "Can't free bcast queue on vif type %d\n", 2183d167e81aSMordechai Goodstein vif->type); 2184d167e81aSMordechai Goodstein return; 2185df88c08dSLiad Kaufman } 2186df88c08dSLiad Kaufman 2187cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, NULL, queue, IWL_MAX_TID_COUNT, 0); 2188d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) 2189d167e81aSMordechai Goodstein return; 2190d167e81aSMordechai Goodstein 2191d167e81aSMordechai Goodstein WARN_ON(!(mvmvif->bcast_sta.tfd_queue_msk & BIT(queue))); 2192d167e81aSMordechai Goodstein mvmvif->bcast_sta.tfd_queue_msk &= ~BIT(queue); 2193e705c121SKalle Valo } 2194e705c121SKalle Valo 2195e705c121SKalle Valo /* Send the FW a request to remove the station from it's internal data 2196e705c121SKalle Valo * structures, but DO NOT remove the entry from the local data structures. */ 2197e705c121SKalle Valo int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2198e705c121SKalle Valo { 2199e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2200e705c121SKalle Valo int ret; 2201e705c121SKalle Valo 2202e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2203e705c121SKalle Valo 2204df88c08dSLiad Kaufman iwl_mvm_free_bcast_sta_queues(mvm, vif); 2205df88c08dSLiad Kaufman 2206e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvmvif->bcast_sta.sta_id); 2207e705c121SKalle Valo if (ret) 2208e705c121SKalle Valo IWL_WARN(mvm, "Failed sending remove station\n"); 2209e705c121SKalle Valo return ret; 2210e705c121SKalle Valo } 2211e705c121SKalle Valo 2212e705c121SKalle Valo int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2213e705c121SKalle Valo { 2214e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2215e705c121SKalle Valo 2216e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2217e705c121SKalle Valo 2218c8f54701SJohannes Berg return iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, 0, 2219ced19f26SSara Sharon ieee80211_vif_type_p2p(vif), 2220ced19f26SSara Sharon IWL_STA_GENERAL_PURPOSE); 2221e705c121SKalle Valo } 2222e705c121SKalle Valo 2223e705c121SKalle Valo /* Allocate a new station entry for the broadcast station to the given vif, 2224e705c121SKalle Valo * and send it to the FW. 2225e705c121SKalle Valo * Note that each P2P mac should have its own broadcast station. 2226e705c121SKalle Valo * 2227e705c121SKalle Valo * @mvm: the mvm component 2228e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2229e705c121SKalle Valo * @bsta: the broadcast station to add. */ 2230d197358bSLuca Coelho int iwl_mvm_add_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2231e705c121SKalle Valo { 2232e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2233e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 2234e705c121SKalle Valo int ret; 2235e705c121SKalle Valo 2236e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2237e705c121SKalle Valo 2238e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 2239e705c121SKalle Valo if (ret) 2240e705c121SKalle Valo return ret; 2241e705c121SKalle Valo 2242e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2243e705c121SKalle Valo 2244e705c121SKalle Valo if (ret) 2245e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, bsta); 2246e705c121SKalle Valo 2247e705c121SKalle Valo return ret; 2248e705c121SKalle Valo } 2249e705c121SKalle Valo 2250e705c121SKalle Valo void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2251e705c121SKalle Valo { 2252e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2253e705c121SKalle Valo 2254e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta); 2255e705c121SKalle Valo } 2256e705c121SKalle Valo 2257e705c121SKalle Valo /* 2258e705c121SKalle Valo * Send the FW a request to remove the station from it's internal data 2259e705c121SKalle Valo * structures, and in addition remove it from the local data structure. 2260e705c121SKalle Valo */ 2261d197358bSLuca Coelho int iwl_mvm_rm_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2262e705c121SKalle Valo { 2263e705c121SKalle Valo int ret; 2264e705c121SKalle Valo 2265e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2266e705c121SKalle Valo 2267e705c121SKalle Valo ret = iwl_mvm_send_rm_bcast_sta(mvm, vif); 2268e705c121SKalle Valo 2269e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif); 2270e705c121SKalle Valo 2271e705c121SKalle Valo return ret; 2272e705c121SKalle Valo } 2273e705c121SKalle Valo 227426d6c16bSSara Sharon /* 227526d6c16bSSara Sharon * Allocate a new station entry for the multicast station to the given vif, 227626d6c16bSSara Sharon * and send it to the FW. 227726d6c16bSSara Sharon * Note that each AP/GO mac should have its own multicast station. 227826d6c16bSSara Sharon * 227926d6c16bSSara Sharon * @mvm: the mvm component 228026d6c16bSSara Sharon * @vif: the interface to which the multicast station is added 228126d6c16bSSara Sharon */ 228226d6c16bSSara Sharon int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 228326d6c16bSSara Sharon { 228426d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 228526d6c16bSSara Sharon struct iwl_mvm_int_sta *msta = &mvmvif->mcast_sta; 228626d6c16bSSara Sharon static const u8 _maddr[] = {0x03, 0x00, 0x00, 0x00, 0x00, 0x00}; 228726d6c16bSSara Sharon const u8 *maddr = _maddr; 228826d6c16bSSara Sharon struct iwl_trans_txq_scd_cfg cfg = { 2289192a7e1fSJohannes Berg .fifo = vif->type == NL80211_IFTYPE_AP ? 2290192a7e1fSJohannes Berg IWL_MVM_TX_FIFO_MCAST : IWL_MVM_TX_FIFO_BE, 229126d6c16bSSara Sharon .sta_id = msta->sta_id, 22926508de03SIlan Peer .tid = 0, 229326d6c16bSSara Sharon .aggregate = false, 229426d6c16bSSara Sharon .frame_limit = IWL_FRAME_LIMIT, 229526d6c16bSSara Sharon }; 229626d6c16bSSara Sharon unsigned int timeout = iwl_mvm_get_wd_timeout(mvm, vif, false, false); 229726d6c16bSSara Sharon int ret; 229826d6c16bSSara Sharon 229926d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 230026d6c16bSSara Sharon 2301ee48b722SLiad Kaufman if (WARN_ON(vif->type != NL80211_IFTYPE_AP && 2302ee48b722SLiad Kaufman vif->type != NL80211_IFTYPE_ADHOC)) 230326d6c16bSSara Sharon return -ENOTSUPP; 230426d6c16bSSara Sharon 2305ced19f26SSara Sharon /* 2306fc07bd8cSSara Sharon * In IBSS, ieee80211_check_queues() sets the cab_queue to be 2307fc07bd8cSSara Sharon * invalid, so make sure we use the queue we want. 2308fc07bd8cSSara Sharon * Note that this is done here as we want to avoid making DQA 2309fc07bd8cSSara Sharon * changes in mac80211 layer. 2310fc07bd8cSSara Sharon */ 2311cfbc6c4cSSara Sharon if (vif->type == NL80211_IFTYPE_ADHOC) 2312cfbc6c4cSSara Sharon mvmvif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE; 2313fc07bd8cSSara Sharon 2314fc07bd8cSSara Sharon /* 2315ced19f26SSara Sharon * While in previous FWs we had to exclude cab queue from TFD queue 2316ced19f26SSara Sharon * mask, now it is needed as any other queue. 2317ced19f26SSara Sharon */ 2318ced19f26SSara Sharon if (!iwl_mvm_has_new_tx_api(mvm) && 2319ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2320cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, 2321cfbc6c4cSSara Sharon timeout); 2322cfbc6c4cSSara Sharon msta->tfd_queue_msk |= BIT(mvmvif->cab_queue); 2323ced19f26SSara Sharon } 232426d6c16bSSara Sharon ret = iwl_mvm_add_int_sta_common(mvm, msta, maddr, 232526d6c16bSSara Sharon mvmvif->id, mvmvif->color); 232626d6c16bSSara Sharon if (ret) { 232726d6c16bSSara Sharon iwl_mvm_dealloc_int_sta(mvm, msta); 232826d6c16bSSara Sharon return ret; 232926d6c16bSSara Sharon } 233026d6c16bSSara Sharon 233126d6c16bSSara Sharon /* 233226d6c16bSSara Sharon * Enable cab queue after the ADD_STA command is sent. 23332f7a3863SLuca Coelho * This is needed for 22000 firmware which won't accept SCD_QUEUE_CFG 2334ced19f26SSara Sharon * command with unknown station id, and for FW that doesn't support 2335ced19f26SSara Sharon * station API since the cab queue is not included in the 2336ced19f26SSara Sharon * tfd_queue_mask. 233726d6c16bSSara Sharon */ 2338310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 2339cfbc6c4cSSara Sharon int queue = iwl_mvm_tvqm_enable_txq(mvm, msta->sta_id, 23406508de03SIlan Peer 0, 234126d6c16bSSara Sharon timeout); 2342e2af3fabSSara Sharon mvmvif->cab_queue = queue; 2343ced19f26SSara Sharon } else if (!fw_has_api(&mvm->fw->ucode_capa, 2344fc07bd8cSSara Sharon IWL_UCODE_TLV_API_STA_TYPE)) 2345cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, 2346cfbc6c4cSSara Sharon timeout); 234726d6c16bSSara Sharon 234826d6c16bSSara Sharon return 0; 234926d6c16bSSara Sharon } 235026d6c16bSSara Sharon 235128916a16SEmmanuel Grumbach static int __iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, u8 sta_id, 235228916a16SEmmanuel Grumbach struct ieee80211_key_conf *keyconf, 235328916a16SEmmanuel Grumbach bool mcast) 235428916a16SEmmanuel Grumbach { 235528916a16SEmmanuel Grumbach union { 235628916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 235728916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd cmd; 235828916a16SEmmanuel Grumbach } u = {}; 235928916a16SEmmanuel Grumbach bool new_api = fw_has_api(&mvm->fw->ucode_capa, 236028916a16SEmmanuel Grumbach IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 236128916a16SEmmanuel Grumbach __le16 key_flags; 236228916a16SEmmanuel Grumbach int ret, size; 236328916a16SEmmanuel Grumbach u32 status; 236428916a16SEmmanuel Grumbach 236528916a16SEmmanuel Grumbach /* This is a valid situation for GTK removal */ 236628916a16SEmmanuel Grumbach if (sta_id == IWL_MVM_INVALID_STA) 236728916a16SEmmanuel Grumbach return 0; 236828916a16SEmmanuel Grumbach 236928916a16SEmmanuel Grumbach key_flags = cpu_to_le16((keyconf->keyidx << STA_KEY_FLG_KEYID_POS) & 237028916a16SEmmanuel Grumbach STA_KEY_FLG_KEYID_MSK); 237128916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_FLG_NO_ENC | STA_KEY_FLG_WEP_KEY_MAP); 237228916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_NOT_VALID); 237328916a16SEmmanuel Grumbach 237428916a16SEmmanuel Grumbach if (mcast) 237528916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 237628916a16SEmmanuel Grumbach 237728916a16SEmmanuel Grumbach /* 237828916a16SEmmanuel Grumbach * The fields assigned here are in the same location at the start 237928916a16SEmmanuel Grumbach * of the command, so we can do this union trick. 238028916a16SEmmanuel Grumbach */ 238128916a16SEmmanuel Grumbach u.cmd.common.key_flags = key_flags; 238228916a16SEmmanuel Grumbach u.cmd.common.key_offset = keyconf->hw_key_idx; 238328916a16SEmmanuel Grumbach u.cmd.common.sta_id = sta_id; 238428916a16SEmmanuel Grumbach 238528916a16SEmmanuel Grumbach size = new_api ? sizeof(u.cmd) : sizeof(u.cmd_v1); 238628916a16SEmmanuel Grumbach 238728916a16SEmmanuel Grumbach status = ADD_STA_SUCCESS; 238828916a16SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, &u.cmd, 238928916a16SEmmanuel Grumbach &status); 239028916a16SEmmanuel Grumbach 239128916a16SEmmanuel Grumbach switch (status) { 239228916a16SEmmanuel Grumbach case ADD_STA_SUCCESS: 239328916a16SEmmanuel Grumbach IWL_DEBUG_WEP(mvm, "MODIFY_STA: remove sta key passed\n"); 239428916a16SEmmanuel Grumbach break; 239528916a16SEmmanuel Grumbach default: 239628916a16SEmmanuel Grumbach ret = -EIO; 239728916a16SEmmanuel Grumbach IWL_ERR(mvm, "MODIFY_STA: remove sta key failed\n"); 239828916a16SEmmanuel Grumbach break; 239928916a16SEmmanuel Grumbach } 240028916a16SEmmanuel Grumbach 240128916a16SEmmanuel Grumbach return ret; 240228916a16SEmmanuel Grumbach } 240328916a16SEmmanuel Grumbach 240426d6c16bSSara Sharon /* 240526d6c16bSSara Sharon * Send the FW a request to remove the station from it's internal data 240626d6c16bSSara Sharon * structures, and in addition remove it from the local data structure. 240726d6c16bSSara Sharon */ 240826d6c16bSSara Sharon int iwl_mvm_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 240926d6c16bSSara Sharon { 241026d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 241126d6c16bSSara Sharon int ret; 241226d6c16bSSara Sharon 241326d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 241426d6c16bSSara Sharon 2415d49394a1SSara Sharon iwl_mvm_flush_sta(mvm, &mvmvif->mcast_sta, true, 0); 2416d49394a1SSara Sharon 2417cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, NULL, mvmvif->cab_queue, 0, 0); 241826d6c16bSSara Sharon 241926d6c16bSSara Sharon ret = iwl_mvm_rm_sta_common(mvm, mvmvif->mcast_sta.sta_id); 242026d6c16bSSara Sharon if (ret) 242126d6c16bSSara Sharon IWL_WARN(mvm, "Failed sending remove station\n"); 242226d6c16bSSara Sharon 242326d6c16bSSara Sharon return ret; 242426d6c16bSSara Sharon } 242526d6c16bSSara Sharon 2426e705c121SKalle Valo #define IWL_MAX_RX_BA_SESSIONS 16 2427e705c121SKalle Valo 2428b915c101SSara Sharon static void iwl_mvm_sync_rxq_del_ba(struct iwl_mvm *mvm, u8 baid) 242910b2b201SSara Sharon { 24306b2dbce5SEmmanuel Grumbach struct iwl_mvm_rss_sync_notif notif = { 2431b915c101SSara Sharon .metadata.type = IWL_MVM_RXQ_NOTIF_DEL_BA, 2432b915c101SSara Sharon .metadata.sync = 1, 2433b915c101SSara Sharon .delba.baid = baid, 2434b915c101SSara Sharon }; 2435b915c101SSara Sharon iwl_mvm_sync_rx_queues_internal(mvm, (void *)¬if, sizeof(notif)); 243610b2b201SSara Sharon }; 243710b2b201SSara Sharon 2438b915c101SSara Sharon static void iwl_mvm_free_reorder(struct iwl_mvm *mvm, 2439b915c101SSara Sharon struct iwl_mvm_baid_data *data) 2440b915c101SSara Sharon { 2441b915c101SSara Sharon int i; 2442b915c101SSara Sharon 2443b915c101SSara Sharon iwl_mvm_sync_rxq_del_ba(mvm, data->baid); 2444b915c101SSara Sharon 2445b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2446b915c101SSara Sharon int j; 2447b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2448b915c101SSara Sharon &data->reorder_buf[i]; 2449dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2450dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2451b915c101SSara Sharon 24520690405fSSara Sharon spin_lock_bh(&reorder_buf->lock); 24530690405fSSara Sharon if (likely(!reorder_buf->num_stored)) { 24540690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 2455b915c101SSara Sharon continue; 24560690405fSSara Sharon } 2457b915c101SSara Sharon 2458b915c101SSara Sharon /* 2459b915c101SSara Sharon * This shouldn't happen in regular DELBA since the internal 2460b915c101SSara Sharon * delBA notification should trigger a release of all frames in 2461b915c101SSara Sharon * the reorder buffer. 2462b915c101SSara Sharon */ 2463b915c101SSara Sharon WARN_ON(1); 2464b915c101SSara Sharon 2465b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2466dfdddd92SJohannes Berg __skb_queue_purge(&entries[j].e.frames); 24670690405fSSara Sharon /* 24680690405fSSara Sharon * Prevent timer re-arm. This prevents a very far fetched case 24690690405fSSara Sharon * where we timed out on the notification. There may be prior 24700690405fSSara Sharon * RX frames pending in the RX queue before the notification 24710690405fSSara Sharon * that might get processed between now and the actual deletion 24720690405fSSara Sharon * and we would re-arm the timer although we are deleting the 24730690405fSSara Sharon * reorder buffer. 24740690405fSSara Sharon */ 24750690405fSSara Sharon reorder_buf->removed = true; 24760690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 24770690405fSSara Sharon del_timer_sync(&reorder_buf->reorder_timer); 2478b915c101SSara Sharon } 2479b915c101SSara Sharon } 2480b915c101SSara Sharon 2481b915c101SSara Sharon static void iwl_mvm_init_reorder_buffer(struct iwl_mvm *mvm, 2482b915c101SSara Sharon struct iwl_mvm_baid_data *data, 2483514c3069SLuca Coelho u16 ssn, u16 buf_size) 2484b915c101SSara Sharon { 2485b915c101SSara Sharon int i; 2486b915c101SSara Sharon 2487b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2488b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2489b915c101SSara Sharon &data->reorder_buf[i]; 2490dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2491dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2492b915c101SSara Sharon int j; 2493b915c101SSara Sharon 2494b915c101SSara Sharon reorder_buf->num_stored = 0; 2495b915c101SSara Sharon reorder_buf->head_sn = ssn; 2496b915c101SSara Sharon reorder_buf->buf_size = buf_size; 24970690405fSSara Sharon /* rx reorder timer */ 24988cef5344SKees Cook timer_setup(&reorder_buf->reorder_timer, 24998cef5344SKees Cook iwl_mvm_reorder_timer_expired, 0); 25000690405fSSara Sharon spin_lock_init(&reorder_buf->lock); 25010690405fSSara Sharon reorder_buf->mvm = mvm; 2502b915c101SSara Sharon reorder_buf->queue = i; 25035d43eab6SSara Sharon reorder_buf->valid = false; 2504b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2505dfdddd92SJohannes Berg __skb_queue_head_init(&entries[j].e.frames); 2506b915c101SSara Sharon } 250710b2b201SSara Sharon } 250810b2b201SSara Sharon 2509e705c121SKalle Valo int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2510514c3069SLuca Coelho int tid, u16 ssn, bool start, u16 buf_size, u16 timeout) 2511e705c121SKalle Valo { 2512e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2513e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 251410b2b201SSara Sharon struct iwl_mvm_baid_data *baid_data = NULL; 2515e705c121SKalle Valo int ret; 2516e705c121SKalle Valo u32 status; 2517e705c121SKalle Valo 2518e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2519e705c121SKalle Valo 2520e705c121SKalle Valo if (start && mvm->rx_ba_sessions >= IWL_MAX_RX_BA_SESSIONS) { 2521e705c121SKalle Valo IWL_WARN(mvm, "Not enough RX BA SESSIONS\n"); 2522e705c121SKalle Valo return -ENOSPC; 2523e705c121SKalle Valo } 2524e705c121SKalle Valo 252510b2b201SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && start) { 2526dfdddd92SJohannes Berg u16 reorder_buf_size = buf_size * sizeof(baid_data->entries[0]); 2527dfdddd92SJohannes Berg 2528dfdddd92SJohannes Berg /* sparse doesn't like the __align() so don't check */ 2529dfdddd92SJohannes Berg #ifndef __CHECKER__ 2530dfdddd92SJohannes Berg /* 2531dfdddd92SJohannes Berg * The division below will be OK if either the cache line size 2532dfdddd92SJohannes Berg * can be divided by the entry size (ALIGN will round up) or if 2533dfdddd92SJohannes Berg * if the entry size can be divided by the cache line size, in 2534dfdddd92SJohannes Berg * which case the ALIGN() will do nothing. 2535dfdddd92SJohannes Berg */ 2536dfdddd92SJohannes Berg BUILD_BUG_ON(SMP_CACHE_BYTES % sizeof(baid_data->entries[0]) && 2537dfdddd92SJohannes Berg sizeof(baid_data->entries[0]) % SMP_CACHE_BYTES); 2538dfdddd92SJohannes Berg #endif 2539dfdddd92SJohannes Berg 2540dfdddd92SJohannes Berg /* 2541dfdddd92SJohannes Berg * Upward align the reorder buffer size to fill an entire cache 2542dfdddd92SJohannes Berg * line for each queue, to avoid sharing cache lines between 2543dfdddd92SJohannes Berg * different queues. 2544dfdddd92SJohannes Berg */ 2545dfdddd92SJohannes Berg reorder_buf_size = ALIGN(reorder_buf_size, SMP_CACHE_BYTES); 2546dfdddd92SJohannes Berg 254710b2b201SSara Sharon /* 254810b2b201SSara Sharon * Allocate here so if allocation fails we can bail out early 254910b2b201SSara Sharon * before starting the BA session in the firmware 255010b2b201SSara Sharon */ 2551b915c101SSara Sharon baid_data = kzalloc(sizeof(*baid_data) + 2552b915c101SSara Sharon mvm->trans->num_rx_queues * 2553dfdddd92SJohannes Berg reorder_buf_size, 2554b915c101SSara Sharon GFP_KERNEL); 255510b2b201SSara Sharon if (!baid_data) 255610b2b201SSara Sharon return -ENOMEM; 2557dfdddd92SJohannes Berg 2558dfdddd92SJohannes Berg /* 2559dfdddd92SJohannes Berg * This division is why we need the above BUILD_BUG_ON(), 2560dfdddd92SJohannes Berg * if that doesn't hold then this will not be right. 2561dfdddd92SJohannes Berg */ 2562dfdddd92SJohannes Berg baid_data->entries_per_queue = 2563dfdddd92SJohannes Berg reorder_buf_size / sizeof(baid_data->entries[0]); 256410b2b201SSara Sharon } 256510b2b201SSara Sharon 2566e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 2567e705c121SKalle Valo cmd.sta_id = mvm_sta->sta_id; 2568e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 2569e705c121SKalle Valo if (start) { 2570e705c121SKalle Valo cmd.add_immediate_ba_tid = (u8) tid; 2571e705c121SKalle Valo cmd.add_immediate_ba_ssn = cpu_to_le16(ssn); 2572514c3069SLuca Coelho cmd.rx_ba_window = cpu_to_le16(buf_size); 2573e705c121SKalle Valo } else { 2574e705c121SKalle Valo cmd.remove_immediate_ba_tid = (u8) tid; 2575e705c121SKalle Valo } 2576e705c121SKalle Valo cmd.modify_mask = start ? STA_MODIFY_ADD_BA_TID : 2577e705c121SKalle Valo STA_MODIFY_REMOVE_BA_TID; 2578e705c121SKalle Valo 2579e705c121SKalle Valo status = ADD_STA_SUCCESS; 2580854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 2581854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 2582e705c121SKalle Valo &cmd, &status); 2583e705c121SKalle Valo if (ret) 258410b2b201SSara Sharon goto out_free; 2585e705c121SKalle Valo 2586837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 2587e705c121SKalle Valo case ADD_STA_SUCCESS: 258835263a03SSara Sharon IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n", 2589e705c121SKalle Valo start ? "start" : "stopp"); 2590e705c121SKalle Valo break; 2591e705c121SKalle Valo case ADD_STA_IMMEDIATE_BA_FAILURE: 2592e705c121SKalle Valo IWL_WARN(mvm, "RX BA Session refused by fw\n"); 2593e705c121SKalle Valo ret = -ENOSPC; 2594e705c121SKalle Valo break; 2595e705c121SKalle Valo default: 2596e705c121SKalle Valo ret = -EIO; 2597e705c121SKalle Valo IWL_ERR(mvm, "RX BA Session failed %sing, status 0x%x\n", 2598e705c121SKalle Valo start ? "start" : "stopp", status); 2599e705c121SKalle Valo break; 2600e705c121SKalle Valo } 2601e705c121SKalle Valo 260210b2b201SSara Sharon if (ret) 260310b2b201SSara Sharon goto out_free; 260410b2b201SSara Sharon 260510b2b201SSara Sharon if (start) { 260610b2b201SSara Sharon u8 baid; 260710b2b201SSara Sharon 2608e705c121SKalle Valo mvm->rx_ba_sessions++; 260910b2b201SSara Sharon 261010b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 261110b2b201SSara Sharon return 0; 261210b2b201SSara Sharon 261310b2b201SSara Sharon if (WARN_ON(!(status & IWL_ADD_STA_BAID_VALID_MASK))) { 261410b2b201SSara Sharon ret = -EINVAL; 261510b2b201SSara Sharon goto out_free; 261610b2b201SSara Sharon } 261710b2b201SSara Sharon baid = (u8)((status & IWL_ADD_STA_BAID_MASK) >> 261810b2b201SSara Sharon IWL_ADD_STA_BAID_SHIFT); 261910b2b201SSara Sharon baid_data->baid = baid; 262010b2b201SSara Sharon baid_data->timeout = timeout; 262110b2b201SSara Sharon baid_data->last_rx = jiffies; 26228cef5344SKees Cook baid_data->rcu_ptr = &mvm->baid_map[baid]; 26238cef5344SKees Cook timer_setup(&baid_data->session_timer, 26248cef5344SKees Cook iwl_mvm_rx_agg_session_expired, 0); 262510b2b201SSara Sharon baid_data->mvm = mvm; 262610b2b201SSara Sharon baid_data->tid = tid; 262710b2b201SSara Sharon baid_data->sta_id = mvm_sta->sta_id; 262810b2b201SSara Sharon 262910b2b201SSara Sharon mvm_sta->tid_to_baid[tid] = baid; 263010b2b201SSara Sharon if (timeout) 263110b2b201SSara Sharon mod_timer(&baid_data->session_timer, 263210b2b201SSara Sharon TU_TO_EXP_TIME(timeout * 2)); 263310b2b201SSara Sharon 26343f1c4c58SSara Sharon iwl_mvm_init_reorder_buffer(mvm, baid_data, ssn, buf_size); 263510b2b201SSara Sharon /* 263610b2b201SSara Sharon * protect the BA data with RCU to cover a case where our 263710b2b201SSara Sharon * internal RX sync mechanism will timeout (not that it's 263810b2b201SSara Sharon * supposed to happen) and we will free the session data while 263910b2b201SSara Sharon * RX is being processed in parallel 264010b2b201SSara Sharon */ 264135263a03SSara Sharon IWL_DEBUG_HT(mvm, "Sta %d(%d) is assigned to BAID %d\n", 264235263a03SSara Sharon mvm_sta->sta_id, tid, baid); 264310b2b201SSara Sharon WARN_ON(rcu_access_pointer(mvm->baid_map[baid])); 264410b2b201SSara Sharon rcu_assign_pointer(mvm->baid_map[baid], baid_data); 264560dec523SSara Sharon } else { 264610b2b201SSara Sharon u8 baid = mvm_sta->tid_to_baid[tid]; 264710b2b201SSara Sharon 264860dec523SSara Sharon if (mvm->rx_ba_sessions > 0) 2649e705c121SKalle Valo /* check that restart flow didn't zero the counter */ 2650e705c121SKalle Valo mvm->rx_ba_sessions--; 265110b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 265210b2b201SSara Sharon return 0; 2653e705c121SKalle Valo 265410b2b201SSara Sharon if (WARN_ON(baid == IWL_RX_REORDER_DATA_INVALID_BAID)) 265510b2b201SSara Sharon return -EINVAL; 265610b2b201SSara Sharon 265710b2b201SSara Sharon baid_data = rcu_access_pointer(mvm->baid_map[baid]); 265810b2b201SSara Sharon if (WARN_ON(!baid_data)) 265910b2b201SSara Sharon return -EINVAL; 266010b2b201SSara Sharon 266110b2b201SSara Sharon /* synchronize all rx queues so we can safely delete */ 2662b915c101SSara Sharon iwl_mvm_free_reorder(mvm, baid_data); 266310b2b201SSara Sharon del_timer_sync(&baid_data->session_timer); 266410b2b201SSara Sharon RCU_INIT_POINTER(mvm->baid_map[baid], NULL); 266510b2b201SSara Sharon kfree_rcu(baid_data, rcu_head); 266635263a03SSara Sharon IWL_DEBUG_HT(mvm, "BAID %d is free\n", baid); 266710b2b201SSara Sharon } 266810b2b201SSara Sharon return 0; 266910b2b201SSara Sharon 267010b2b201SSara Sharon out_free: 267110b2b201SSara Sharon kfree(baid_data); 2672e705c121SKalle Valo return ret; 2673e705c121SKalle Valo } 2674e705c121SKalle Valo 26759794c64fSLiad Kaufman int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2676e705c121SKalle Valo int tid, u8 queue, bool start) 2677e705c121SKalle Valo { 2678e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2679e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 2680e705c121SKalle Valo int ret; 2681e705c121SKalle Valo u32 status; 2682e705c121SKalle Valo 2683e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2684e705c121SKalle Valo 2685e705c121SKalle Valo if (start) { 2686e705c121SKalle Valo mvm_sta->tfd_queue_msk |= BIT(queue); 2687e705c121SKalle Valo mvm_sta->tid_disable_agg &= ~BIT(tid); 2688e705c121SKalle Valo } else { 2689cf961e16SLiad Kaufman /* In DQA-mode the queue isn't removed on agg termination */ 2690e705c121SKalle Valo mvm_sta->tid_disable_agg |= BIT(tid); 2691e705c121SKalle Valo } 2692e705c121SKalle Valo 2693e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 2694e705c121SKalle Valo cmd.sta_id = mvm_sta->sta_id; 2695e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 2696bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) 2697bb49701bSSara Sharon cmd.modify_mask = STA_MODIFY_QUEUES; 2698bb49701bSSara Sharon cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 2699e705c121SKalle Valo cmd.tfd_queue_msk = cpu_to_le32(mvm_sta->tfd_queue_msk); 2700e705c121SKalle Valo cmd.tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg); 2701e705c121SKalle Valo 2702e705c121SKalle Valo status = ADD_STA_SUCCESS; 2703854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 2704854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 2705e705c121SKalle Valo &cmd, &status); 2706e705c121SKalle Valo if (ret) 2707e705c121SKalle Valo return ret; 2708e705c121SKalle Valo 2709837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 2710e705c121SKalle Valo case ADD_STA_SUCCESS: 2711e705c121SKalle Valo break; 2712e705c121SKalle Valo default: 2713e705c121SKalle Valo ret = -EIO; 2714e705c121SKalle Valo IWL_ERR(mvm, "TX BA Session failed %sing, status 0x%x\n", 2715e705c121SKalle Valo start ? "start" : "stopp", status); 2716e705c121SKalle Valo break; 2717e705c121SKalle Valo } 2718e705c121SKalle Valo 2719e705c121SKalle Valo return ret; 2720e705c121SKalle Valo } 2721e705c121SKalle Valo 2722e705c121SKalle Valo const u8 tid_to_mac80211_ac[] = { 2723e705c121SKalle Valo IEEE80211_AC_BE, 2724e705c121SKalle Valo IEEE80211_AC_BK, 2725e705c121SKalle Valo IEEE80211_AC_BK, 2726e705c121SKalle Valo IEEE80211_AC_BE, 2727e705c121SKalle Valo IEEE80211_AC_VI, 2728e705c121SKalle Valo IEEE80211_AC_VI, 2729e705c121SKalle Valo IEEE80211_AC_VO, 2730e705c121SKalle Valo IEEE80211_AC_VO, 27319794c64fSLiad Kaufman IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 2732e705c121SKalle Valo }; 2733e705c121SKalle Valo 2734e705c121SKalle Valo static const u8 tid_to_ucode_ac[] = { 2735e705c121SKalle Valo AC_BE, 2736e705c121SKalle Valo AC_BK, 2737e705c121SKalle Valo AC_BK, 2738e705c121SKalle Valo AC_BE, 2739e705c121SKalle Valo AC_VI, 2740e705c121SKalle Valo AC_VI, 2741e705c121SKalle Valo AC_VO, 2742e705c121SKalle Valo AC_VO, 2743e705c121SKalle Valo }; 2744e705c121SKalle Valo 2745e705c121SKalle Valo int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2746e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 *ssn) 2747e705c121SKalle Valo { 2748e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2749e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 2750dd32162dSLiad Kaufman u16 normalized_ssn; 2751b0d795a9SMordechay Goodstein u16 txq_id; 2752e705c121SKalle Valo int ret; 2753e705c121SKalle Valo 2754e705c121SKalle Valo if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT)) 2755e705c121SKalle Valo return -EINVAL; 2756e705c121SKalle Valo 2757bd800e41SNaftali Goldstein if (mvmsta->tid_data[tid].state != IWL_AGG_QUEUED && 2758bd800e41SNaftali Goldstein mvmsta->tid_data[tid].state != IWL_AGG_OFF) { 2759bd800e41SNaftali Goldstein IWL_ERR(mvm, 2760bd800e41SNaftali Goldstein "Start AGG when state is not IWL_AGG_QUEUED or IWL_AGG_OFF %d!\n", 2761e705c121SKalle Valo mvmsta->tid_data[tid].state); 2762e705c121SKalle Valo return -ENXIO; 2763e705c121SKalle Valo } 2764e705c121SKalle Valo 2765e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2766e705c121SKalle Valo 2767bd8f3fc6SLiad Kaufman if (mvmsta->tid_data[tid].txq_id == IWL_MVM_INVALID_QUEUE && 2768bd8f3fc6SLiad Kaufman iwl_mvm_has_new_tx_api(mvm)) { 2769bd8f3fc6SLiad Kaufman u8 ac = tid_to_mac80211_ac[tid]; 2770bd8f3fc6SLiad Kaufman 2771bd8f3fc6SLiad Kaufman ret = iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 2772bd8f3fc6SLiad Kaufman if (ret) 2773bd8f3fc6SLiad Kaufman return ret; 2774bd8f3fc6SLiad Kaufman } 2775bd8f3fc6SLiad Kaufman 2776e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2777e705c121SKalle Valo 2778e705c121SKalle Valo /* possible race condition - we entered D0i3 while starting agg */ 2779e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) { 2780e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2781e705c121SKalle Valo IWL_ERR(mvm, "Entered D0i3 while starting Tx agg\n"); 2782e705c121SKalle Valo return -EIO; 2783e705c121SKalle Valo } 2784e705c121SKalle Valo 2785cf961e16SLiad Kaufman /* 2786cf961e16SLiad Kaufman * Note the possible cases: 27874a6d2e52SAvraham Stern * 1. An enabled TXQ - TXQ needs to become agg'ed 27884a6d2e52SAvraham Stern * 2. The TXQ hasn't yet been enabled, so find a free one and mark 27894a6d2e52SAvraham Stern * it as reserved 2790cf961e16SLiad Kaufman */ 2791cf961e16SLiad Kaufman txq_id = mvmsta->tid_data[tid].txq_id; 279234e10860SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) { 2793b0d795a9SMordechay Goodstein ret = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 2794c8f54701SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 2795c8f54701SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 2796b0d795a9SMordechay Goodstein if (ret < 0) { 2797e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate agg queue\n"); 2798f3f240f9SJohannes Berg goto out; 2799e705c121SKalle Valo } 2800cf961e16SLiad Kaufman 2801b0d795a9SMordechay Goodstein txq_id = ret; 2802b0d795a9SMordechay Goodstein 2803cf961e16SLiad Kaufman /* TXQ hasn't yet been enabled, so mark it only as reserved */ 2804cf961e16SLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_RESERVED; 2805b0d795a9SMordechay Goodstein } else if (WARN_ON(txq_id >= IWL_MAX_HW_QUEUES)) { 2806b0d795a9SMordechay Goodstein ret = -ENXIO; 2807b0d795a9SMordechay Goodstein IWL_ERR(mvm, "tid_id %d out of range (0, %d)!\n", 2808b0d795a9SMordechay Goodstein tid, IWL_MAX_HW_QUEUES - 1); 2809b0d795a9SMordechay Goodstein goto out; 2810b0d795a9SMordechay Goodstein 28114a6d2e52SAvraham Stern } else if (unlikely(mvm->queue_info[txq_id].status == 28124a6d2e52SAvraham Stern IWL_MVM_QUEUE_SHARED)) { 28134a6d2e52SAvraham Stern ret = -ENXIO; 28144a6d2e52SAvraham Stern IWL_DEBUG_TX_QUEUES(mvm, 28154a6d2e52SAvraham Stern "Can't start tid %d agg on shared queue!\n", 28164a6d2e52SAvraham Stern tid); 2817f3f240f9SJohannes Berg goto out; 2818cf961e16SLiad Kaufman } 28199f9af3d7SLiad Kaufman 2820cf961e16SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 2821cf961e16SLiad Kaufman "AGG for tid %d will be on queue #%d\n", 2822cf961e16SLiad Kaufman tid, txq_id); 2823cf961e16SLiad Kaufman 2824e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 2825e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 2826e705c121SKalle Valo tid_data->txq_id = txq_id; 2827e705c121SKalle Valo *ssn = tid_data->ssn; 2828e705c121SKalle Valo 2829e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 2830e705c121SKalle Valo "Start AGG: sta %d tid %d queue %d - ssn = %d, next_recl = %d\n", 2831e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->ssn, 2832e705c121SKalle Valo tid_data->next_reclaimed); 2833e705c121SKalle Valo 2834dd32162dSLiad Kaufman /* 28352f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 2836dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 2837dd32162dSLiad Kaufman */ 2838dd32162dSLiad Kaufman normalized_ssn = tid_data->ssn; 2839dd32162dSLiad Kaufman if (mvm->trans->cfg->gen2) 2840dd32162dSLiad Kaufman normalized_ssn &= 0xff; 2841dd32162dSLiad Kaufman 2842dd32162dSLiad Kaufman if (normalized_ssn == tid_data->next_reclaimed) { 2843e705c121SKalle Valo tid_data->state = IWL_AGG_STARTING; 2844e705c121SKalle Valo ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); 2845e705c121SKalle Valo } else { 2846e705c121SKalle Valo tid_data->state = IWL_EMPTYING_HW_QUEUE_ADDBA; 2847e705c121SKalle Valo } 2848e705c121SKalle Valo 2849e705c121SKalle Valo ret = 0; 2850e705c121SKalle Valo 28519f9af3d7SLiad Kaufman out: 2852e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2853e705c121SKalle Valo 2854e705c121SKalle Valo return ret; 2855e705c121SKalle Valo } 2856e705c121SKalle Valo 2857e705c121SKalle Valo int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2858514c3069SLuca Coelho struct ieee80211_sta *sta, u16 tid, u16 buf_size, 2859bb81bb68SEmmanuel Grumbach bool amsdu) 2860e705c121SKalle Valo { 2861e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2862e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2863e705c121SKalle Valo unsigned int wdg_timeout = 2864e705c121SKalle Valo iwl_mvm_get_wd_timeout(mvm, vif, sta->tdls, false); 2865eea76c36SEmmanuel Grumbach int queue, ret; 2866cf961e16SLiad Kaufman bool alloc_queue = true; 28679f9af3d7SLiad Kaufman enum iwl_mvm_queue_status queue_status; 2868e705c121SKalle Valo u16 ssn; 2869e705c121SKalle Valo 2870eea76c36SEmmanuel Grumbach struct iwl_trans_txq_scd_cfg cfg = { 2871eea76c36SEmmanuel Grumbach .sta_id = mvmsta->sta_id, 2872eea76c36SEmmanuel Grumbach .tid = tid, 2873eea76c36SEmmanuel Grumbach .frame_limit = buf_size, 2874eea76c36SEmmanuel Grumbach .aggregate = true, 2875eea76c36SEmmanuel Grumbach }; 2876eea76c36SEmmanuel Grumbach 2877ecaf71deSGregory Greenman /* 2878ecaf71deSGregory Greenman * When FW supports TLC_OFFLOAD, it also implements Tx aggregation 2879ecaf71deSGregory Greenman * manager, so this function should never be called in this case. 2880ecaf71deSGregory Greenman */ 28814243edb4SEmmanuel Grumbach if (WARN_ON_ONCE(iwl_mvm_has_tlc_offload(mvm))) 2882ecaf71deSGregory Greenman return -EINVAL; 2883ecaf71deSGregory Greenman 2884e705c121SKalle Valo BUILD_BUG_ON((sizeof(mvmsta->agg_tids) * BITS_PER_BYTE) 2885e705c121SKalle Valo != IWL_MAX_TID_COUNT); 2886e705c121SKalle Valo 2887e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2888e705c121SKalle Valo ssn = tid_data->ssn; 2889e705c121SKalle Valo queue = tid_data->txq_id; 2890e705c121SKalle Valo tid_data->state = IWL_AGG_ON; 2891e705c121SKalle Valo mvmsta->agg_tids |= BIT(tid); 2892e705c121SKalle Valo tid_data->ssn = 0xffff; 2893bb81bb68SEmmanuel Grumbach tid_data->amsdu_in_ampdu_allowed = amsdu; 2894e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2895e705c121SKalle Valo 289634e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 289734e10860SSara Sharon /* 28980ec9257bSSara Sharon * If there is no queue for this tid, iwl_mvm_sta_tx_agg_start() 28990ec9257bSSara Sharon * would have failed, so if we are here there is no need to 29000ec9257bSSara Sharon * allocate a queue. 29010ec9257bSSara Sharon * However, if aggregation size is different than the default 29020ec9257bSSara Sharon * size, the scheduler should be reconfigured. 29030ec9257bSSara Sharon * We cannot do this with the new TX API, so return unsupported 29040ec9257bSSara Sharon * for now, until it will be offloaded to firmware.. 29050ec9257bSSara Sharon * Note that if SCD default value changes - this condition 29060ec9257bSSara Sharon * should be updated as well. 290734e10860SSara Sharon */ 29080ec9257bSSara Sharon if (buf_size < IWL_FRAME_LIMIT) 290934e10860SSara Sharon return -ENOTSUPP; 291034e10860SSara Sharon 291134e10860SSara Sharon ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 291234e10860SSara Sharon if (ret) 291334e10860SSara Sharon return -EIO; 291434e10860SSara Sharon goto out; 291534e10860SSara Sharon } 291634e10860SSara Sharon 2917eea76c36SEmmanuel Grumbach cfg.fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 2918e705c121SKalle Valo 29199f9af3d7SLiad Kaufman queue_status = mvm->queue_info[queue].status; 29209f9af3d7SLiad Kaufman 2921cf961e16SLiad Kaufman /* Maybe there is no need to even alloc a queue... */ 2922cf961e16SLiad Kaufman if (mvm->queue_info[queue].status == IWL_MVM_QUEUE_READY) 2923cf961e16SLiad Kaufman alloc_queue = false; 2924cf961e16SLiad Kaufman 2925cf961e16SLiad Kaufman /* 2926cf961e16SLiad Kaufman * Only reconfig the SCD for the queue if the window size has 2927cf961e16SLiad Kaufman * changed from current (become smaller) 2928cf961e16SLiad Kaufman */ 29290ec9257bSSara Sharon if (!alloc_queue && buf_size < IWL_FRAME_LIMIT) { 2930cf961e16SLiad Kaufman /* 2931cf961e16SLiad Kaufman * If reconfiguring an existing queue, it first must be 2932cf961e16SLiad Kaufman * drained 2933cf961e16SLiad Kaufman */ 2934a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 2935cf961e16SLiad Kaufman BIT(queue)); 2936cf961e16SLiad Kaufman if (ret) { 2937cf961e16SLiad Kaufman IWL_ERR(mvm, 2938cf961e16SLiad Kaufman "Error draining queue before reconfig\n"); 2939cf961e16SLiad Kaufman return ret; 2940cf961e16SLiad Kaufman } 2941cf961e16SLiad Kaufman 2942cf961e16SLiad Kaufman ret = iwl_mvm_reconfig_scd(mvm, queue, cfg.fifo, 2943cf961e16SLiad Kaufman mvmsta->sta_id, tid, 2944cf961e16SLiad Kaufman buf_size, ssn); 2945cf961e16SLiad Kaufman if (ret) { 2946cf961e16SLiad Kaufman IWL_ERR(mvm, 2947cf961e16SLiad Kaufman "Error reconfiguring TXQ #%d\n", queue); 2948cf961e16SLiad Kaufman return ret; 2949cf961e16SLiad Kaufman } 2950cf961e16SLiad Kaufman } 2951cf961e16SLiad Kaufman 2952cf961e16SLiad Kaufman if (alloc_queue) 2953cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, queue, ssn, 2954cf961e16SLiad Kaufman &cfg, wdg_timeout); 2955e705c121SKalle Valo 29569f9af3d7SLiad Kaufman /* Send ADD_STA command to enable aggs only if the queue isn't shared */ 29579f9af3d7SLiad Kaufman if (queue_status != IWL_MVM_QUEUE_SHARED) { 2958e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 2959e705c121SKalle Valo if (ret) 2960e705c121SKalle Valo return -EIO; 29619f9af3d7SLiad Kaufman } 2962e705c121SKalle Valo 2963e705c121SKalle Valo /* No need to mark as reserved */ 2964cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 2965e705c121SKalle Valo 296634e10860SSara Sharon out: 2967e705c121SKalle Valo /* 2968e705c121SKalle Valo * Even though in theory the peer could have different 2969e705c121SKalle Valo * aggregation reorder buffer sizes for different sessions, 2970e705c121SKalle Valo * our ucode doesn't allow for that and has a global limit 2971e705c121SKalle Valo * for each station. Therefore, use the minimum of all the 2972e705c121SKalle Valo * aggregation sessions and our default value. 2973e705c121SKalle Valo */ 2974e705c121SKalle Valo mvmsta->max_agg_bufsize = 2975e705c121SKalle Valo min(mvmsta->max_agg_bufsize, buf_size); 2976ecaf71deSGregory Greenman mvmsta->lq_sta.rs_drv.lq.agg_frame_cnt_limit = mvmsta->max_agg_bufsize; 2977e705c121SKalle Valo 2978e705c121SKalle Valo IWL_DEBUG_HT(mvm, "Tx aggregation enabled on ra = %pM tid = %d\n", 2979e705c121SKalle Valo sta->addr, tid); 2980e705c121SKalle Valo 2981cd4d6b0bSGregory Greenman return iwl_mvm_send_lq_cmd(mvm, &mvmsta->lq_sta.rs_drv.lq); 2982e705c121SKalle Valo } 2983e705c121SKalle Valo 298434e10860SSara Sharon static void iwl_mvm_unreserve_agg_queue(struct iwl_mvm *mvm, 298534e10860SSara Sharon struct iwl_mvm_sta *mvmsta, 29864b387906SAvraham Stern struct iwl_mvm_tid_data *tid_data) 298734e10860SSara Sharon { 29884b387906SAvraham Stern u16 txq_id = tid_data->txq_id; 29894b387906SAvraham Stern 2990f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 2991f3f240f9SJohannes Berg 299234e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 299334e10860SSara Sharon return; 299434e10860SSara Sharon 299534e10860SSara Sharon /* 299634e10860SSara Sharon * The TXQ is marked as reserved only if no traffic came through yet 299734e10860SSara Sharon * This means no traffic has been sent on this TID (agg'd or not), so 299834e10860SSara Sharon * we no longer have use for the queue. Since it hasn't even been 299934e10860SSara Sharon * allocated through iwl_mvm_enable_txq, so we can just mark it back as 300034e10860SSara Sharon * free. 300134e10860SSara Sharon */ 30024b387906SAvraham Stern if (mvm->queue_info[txq_id].status == IWL_MVM_QUEUE_RESERVED) { 300334e10860SSara Sharon mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_FREE; 30044b387906SAvraham Stern tid_data->txq_id = IWL_MVM_INVALID_QUEUE; 30054b387906SAvraham Stern } 300634e10860SSara Sharon } 300734e10860SSara Sharon 3008e705c121SKalle Valo int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3009e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3010e705c121SKalle Valo { 3011e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3012e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3013e705c121SKalle Valo u16 txq_id; 3014e705c121SKalle Valo int err; 3015e705c121SKalle Valo 3016e705c121SKalle Valo /* 3017e705c121SKalle Valo * If mac80211 is cleaning its state, then say that we finished since 3018e705c121SKalle Valo * our state has been cleared anyway. 3019e705c121SKalle Valo */ 3020e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3021e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3022e705c121SKalle Valo return 0; 3023e705c121SKalle Valo } 3024e705c121SKalle Valo 3025e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3026e705c121SKalle Valo 3027e705c121SKalle Valo txq_id = tid_data->txq_id; 3028e705c121SKalle Valo 3029e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Stop AGG: sta %d tid %d q %d state %d\n", 3030e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 3031e705c121SKalle Valo 3032e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3033e705c121SKalle Valo 30344b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3035e705c121SKalle Valo 3036e705c121SKalle Valo switch (tid_data->state) { 3037e705c121SKalle Valo case IWL_AGG_ON: 3038e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3039e705c121SKalle Valo 3040e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 3041e705c121SKalle Valo "ssn = %d, next_recl = %d\n", 3042e705c121SKalle Valo tid_data->ssn, tid_data->next_reclaimed); 3043e705c121SKalle Valo 3044e705c121SKalle Valo tid_data->ssn = 0xffff; 3045e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3046e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3047e705c121SKalle Valo 3048e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3049e705c121SKalle Valo 3050e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3051e705c121SKalle Valo return 0; 3052e705c121SKalle Valo case IWL_AGG_STARTING: 3053e705c121SKalle Valo case IWL_EMPTYING_HW_QUEUE_ADDBA: 3054e705c121SKalle Valo /* 3055e705c121SKalle Valo * The agg session has been stopped before it was set up. This 3056e705c121SKalle Valo * can happen when the AddBA timer times out for example. 3057e705c121SKalle Valo */ 3058e705c121SKalle Valo 3059e705c121SKalle Valo /* No barriers since we are under mutex */ 3060e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3061e705c121SKalle Valo 3062e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3063e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3064e705c121SKalle Valo err = 0; 3065e705c121SKalle Valo break; 3066e705c121SKalle Valo default: 3067e705c121SKalle Valo IWL_ERR(mvm, 3068e705c121SKalle Valo "Stopping AGG while state not ON or starting for %d on %d (%d)\n", 3069e705c121SKalle Valo mvmsta->sta_id, tid, tid_data->state); 3070e705c121SKalle Valo IWL_ERR(mvm, 3071e705c121SKalle Valo "\ttid_data->txq_id = %d\n", tid_data->txq_id); 3072e705c121SKalle Valo err = -EINVAL; 3073e705c121SKalle Valo } 3074e705c121SKalle Valo 3075e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3076e705c121SKalle Valo 3077e705c121SKalle Valo return err; 3078e705c121SKalle Valo } 3079e705c121SKalle Valo 3080e705c121SKalle Valo int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3081e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3082e705c121SKalle Valo { 3083e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3084e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3085e705c121SKalle Valo u16 txq_id; 3086e705c121SKalle Valo enum iwl_mvm_agg_state old_state; 3087e705c121SKalle Valo 3088e705c121SKalle Valo /* 3089e705c121SKalle Valo * First set the agg state to OFF to avoid calling 3090e705c121SKalle Valo * ieee80211_stop_tx_ba_cb in iwl_mvm_check_ratid_empty. 3091e705c121SKalle Valo */ 3092e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3093e705c121SKalle Valo txq_id = tid_data->txq_id; 3094e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Flush AGG: sta %d tid %d q %d state %d\n", 3095e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 3096e705c121SKalle Valo old_state = tid_data->state; 3097e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3098e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3099e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3100e705c121SKalle Valo 31014b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3102e705c121SKalle Valo 3103e705c121SKalle Valo if (old_state >= IWL_AGG_ON) { 3104e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, true); 3105d167e81aSMordechai Goodstein 3106d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) { 3107d167e81aSMordechai Goodstein if (iwl_mvm_flush_sta_tids(mvm, mvmsta->sta_id, 3108d167e81aSMordechai Goodstein BIT(tid), 0)) 3109d167e81aSMordechai Goodstein IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 3110d167e81aSMordechai Goodstein iwl_trans_wait_txq_empty(mvm->trans, txq_id); 3111d167e81aSMordechai Goodstein } else { 3112e705c121SKalle Valo if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id), 0)) 3113e705c121SKalle Valo IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 31140b90964aSSara Sharon iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(txq_id)); 3115d167e81aSMordechai Goodstein } 3116d6d517b7SSara Sharon 3117e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, false); 3118e705c121SKalle Valo 3119e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3120e705c121SKalle Valo } 3121e705c121SKalle Valo 3122e705c121SKalle Valo return 0; 3123e705c121SKalle Valo } 3124e705c121SKalle Valo 3125e705c121SKalle Valo static int iwl_mvm_set_fw_key_idx(struct iwl_mvm *mvm) 3126e705c121SKalle Valo { 3127e705c121SKalle Valo int i, max = -1, max_offs = -1; 3128e705c121SKalle Valo 3129e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3130e705c121SKalle Valo 3131e705c121SKalle Valo /* Pick the unused key offset with the highest 'deleted' 3132e705c121SKalle Valo * counter. Every time a key is deleted, all the counters 3133e705c121SKalle Valo * are incremented and the one that was just deleted is 3134e705c121SKalle Valo * reset to zero. Thus, the highest counter is the one 3135e705c121SKalle Valo * that was deleted longest ago. Pick that one. 3136e705c121SKalle Valo */ 3137e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3138e705c121SKalle Valo if (test_bit(i, mvm->fw_key_table)) 3139e705c121SKalle Valo continue; 3140e705c121SKalle Valo if (mvm->fw_key_deleted[i] > max) { 3141e705c121SKalle Valo max = mvm->fw_key_deleted[i]; 3142e705c121SKalle Valo max_offs = i; 3143e705c121SKalle Valo } 3144e705c121SKalle Valo } 3145e705c121SKalle Valo 3146e705c121SKalle Valo if (max_offs < 0) 3147e705c121SKalle Valo return STA_KEY_IDX_INVALID; 3148e705c121SKalle Valo 3149e705c121SKalle Valo return max_offs; 3150e705c121SKalle Valo } 3151e705c121SKalle Valo 31525f7a1847SJohannes Berg static struct iwl_mvm_sta *iwl_mvm_get_key_sta(struct iwl_mvm *mvm, 31534615fd15SEmmanuel Grumbach struct ieee80211_vif *vif, 3154e705c121SKalle Valo struct ieee80211_sta *sta) 3155e705c121SKalle Valo { 3156e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3157e705c121SKalle Valo 31585f7a1847SJohannes Berg if (sta) 31595f7a1847SJohannes Berg return iwl_mvm_sta_from_mac80211(sta); 3160e705c121SKalle Valo 3161e705c121SKalle Valo /* 3162e705c121SKalle Valo * The device expects GTKs for station interfaces to be 3163e705c121SKalle Valo * installed as GTKs for the AP station. If we have no 3164e705c121SKalle Valo * station ID, then use AP's station ID. 3165e705c121SKalle Valo */ 3166e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 31670ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 31684615fd15SEmmanuel Grumbach u8 sta_id = mvmvif->ap_sta_id; 31694615fd15SEmmanuel Grumbach 31707d6a1ab6SEmmanuel Grumbach sta = rcu_dereference_check(mvm->fw_id_to_mac_id[sta_id], 31717d6a1ab6SEmmanuel Grumbach lockdep_is_held(&mvm->mutex)); 31727d6a1ab6SEmmanuel Grumbach 31734615fd15SEmmanuel Grumbach /* 31744615fd15SEmmanuel Grumbach * It is possible that the 'sta' parameter is NULL, 31754615fd15SEmmanuel Grumbach * for example when a GTK is removed - the sta_id will then 31764615fd15SEmmanuel Grumbach * be the AP ID, and no station was passed by mac80211. 31774615fd15SEmmanuel Grumbach */ 31787d6a1ab6SEmmanuel Grumbach if (IS_ERR_OR_NULL(sta)) 31797d6a1ab6SEmmanuel Grumbach return NULL; 31807d6a1ab6SEmmanuel Grumbach 31817d6a1ab6SEmmanuel Grumbach return iwl_mvm_sta_from_mac80211(sta); 31824615fd15SEmmanuel Grumbach } 3183e705c121SKalle Valo 31845f7a1847SJohannes Berg return NULL; 3185e705c121SKalle Valo } 3186e705c121SKalle Valo 3187e705c121SKalle Valo static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm, 318885aeb58cSDavid Spinadel u32 sta_id, 318945c458b4SSara Sharon struct ieee80211_key_conf *key, bool mcast, 31904615fd15SEmmanuel Grumbach u32 tkip_iv32, u16 *tkip_p1k, u32 cmd_flags, 31914883145aSEmmanuel Grumbach u8 key_offset, bool mfp) 3192e705c121SKalle Valo { 319345c458b4SSara Sharon union { 319445c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 319545c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd cmd; 319645c458b4SSara Sharon } u = {}; 3197e705c121SKalle Valo __le16 key_flags; 3198e705c121SKalle Valo int ret; 3199e705c121SKalle Valo u32 status; 3200e705c121SKalle Valo u16 keyidx; 320145c458b4SSara Sharon u64 pn = 0; 320245c458b4SSara Sharon int i, size; 320345c458b4SSara Sharon bool new_api = fw_has_api(&mvm->fw->ucode_capa, 320445c458b4SSara Sharon IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 3205e705c121SKalle Valo 320685aeb58cSDavid Spinadel if (sta_id == IWL_MVM_INVALID_STA) 320785aeb58cSDavid Spinadel return -EINVAL; 320885aeb58cSDavid Spinadel 320945c458b4SSara Sharon keyidx = (key->keyidx << STA_KEY_FLG_KEYID_POS) & 3210e705c121SKalle Valo STA_KEY_FLG_KEYID_MSK; 3211e705c121SKalle Valo key_flags = cpu_to_le16(keyidx); 3212e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_KEY_MAP); 3213e705c121SKalle Valo 321445c458b4SSara Sharon switch (key->cipher) { 3215e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 3216e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_TKIP); 321745c458b4SSara Sharon if (new_api) { 321845c458b4SSara Sharon memcpy((void *)&u.cmd.tx_mic_key, 321945c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], 322045c458b4SSara Sharon IWL_MIC_KEY_SIZE); 322145c458b4SSara Sharon 322245c458b4SSara Sharon memcpy((void *)&u.cmd.rx_mic_key, 322345c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], 322445c458b4SSara Sharon IWL_MIC_KEY_SIZE); 322545c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 322645c458b4SSara Sharon 322745c458b4SSara Sharon } else { 322845c458b4SSara Sharon u.cmd_v1.tkip_rx_tsc_byte2 = tkip_iv32; 3229e705c121SKalle Valo for (i = 0; i < 5; i++) 323045c458b4SSara Sharon u.cmd_v1.tkip_rx_ttak[i] = 323145c458b4SSara Sharon cpu_to_le16(tkip_p1k[i]); 323245c458b4SSara Sharon } 323345c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3234e705c121SKalle Valo break; 3235e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 3236e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_CCM); 323745c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 323845c458b4SSara Sharon if (new_api) 323945c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 3240e705c121SKalle Valo break; 3241e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 3242e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_13BYTES); 3243e705c121SKalle Valo /* fall through */ 3244e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 3245e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP); 324645c458b4SSara Sharon memcpy(u.cmd.common.key + 3, key->key, key->keylen); 3247e705c121SKalle Valo break; 32482a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 32492a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_KEY_32BYTES); 32502a53d166SAyala Beker /* fall through */ 32512a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 32522a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_GCMP); 325345c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 325445c458b4SSara Sharon if (new_api) 325545c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 32562a53d166SAyala Beker break; 3257e705c121SKalle Valo default: 3258e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_EXT); 325945c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3260e705c121SKalle Valo } 3261e705c121SKalle Valo 3262e705c121SKalle Valo if (mcast) 3263e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 32644883145aSEmmanuel Grumbach if (mfp) 32654883145aSEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MFP); 3266e705c121SKalle Valo 326745c458b4SSara Sharon u.cmd.common.key_offset = key_offset; 326845c458b4SSara Sharon u.cmd.common.key_flags = key_flags; 326985aeb58cSDavid Spinadel u.cmd.common.sta_id = sta_id; 327045c458b4SSara Sharon 327145c458b4SSara Sharon if (new_api) { 327245c458b4SSara Sharon u.cmd.transmit_seq_cnt = cpu_to_le64(pn); 327345c458b4SSara Sharon size = sizeof(u.cmd); 327445c458b4SSara Sharon } else { 327545c458b4SSara Sharon size = sizeof(u.cmd_v1); 327645c458b4SSara Sharon } 3277e705c121SKalle Valo 3278e705c121SKalle Valo status = ADD_STA_SUCCESS; 3279e705c121SKalle Valo if (cmd_flags & CMD_ASYNC) 328045c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA_KEY, CMD_ASYNC, size, 328145c458b4SSara Sharon &u.cmd); 3282e705c121SKalle Valo else 328345c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, 328445c458b4SSara Sharon &u.cmd, &status); 3285e705c121SKalle Valo 3286e705c121SKalle Valo switch (status) { 3287e705c121SKalle Valo case ADD_STA_SUCCESS: 3288e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "MODIFY_STA: set dynamic key passed\n"); 3289e705c121SKalle Valo break; 3290e705c121SKalle Valo default: 3291e705c121SKalle Valo ret = -EIO; 3292e705c121SKalle Valo IWL_ERR(mvm, "MODIFY_STA: set dynamic key failed\n"); 3293e705c121SKalle Valo break; 3294e705c121SKalle Valo } 3295e705c121SKalle Valo 3296e705c121SKalle Valo return ret; 3297e705c121SKalle Valo } 3298e705c121SKalle Valo 3299e705c121SKalle Valo static int iwl_mvm_send_sta_igtk(struct iwl_mvm *mvm, 3300e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3301e705c121SKalle Valo u8 sta_id, bool remove_key) 3302e705c121SKalle Valo { 3303e705c121SKalle Valo struct iwl_mvm_mgmt_mcast_key_cmd igtk_cmd = {}; 3304e705c121SKalle Valo 3305e705c121SKalle Valo /* verify the key details match the required command's expectations */ 33068e160ab8SAyala Beker if (WARN_ON((keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) || 33078e160ab8SAyala Beker (keyconf->keyidx != 4 && keyconf->keyidx != 5) || 33088e160ab8SAyala Beker (keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC && 33098e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_128 && 33108e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_256))) 33118e160ab8SAyala Beker return -EINVAL; 33128e160ab8SAyala Beker 33138e160ab8SAyala Beker if (WARN_ON(!iwl_mvm_has_new_rx_api(mvm) && 33148e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC)) 3315e705c121SKalle Valo return -EINVAL; 3316e705c121SKalle Valo 3317e705c121SKalle Valo igtk_cmd.key_id = cpu_to_le32(keyconf->keyidx); 3318e705c121SKalle Valo igtk_cmd.sta_id = cpu_to_le32(sta_id); 3319e705c121SKalle Valo 3320e705c121SKalle Valo if (remove_key) { 3321e705c121SKalle Valo igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_NOT_VALID); 3322e705c121SKalle Valo } else { 3323e705c121SKalle Valo struct ieee80211_key_seq seq; 3324e705c121SKalle Valo const u8 *pn; 3325e705c121SKalle Valo 3326aa950524SAyala Beker switch (keyconf->cipher) { 3327aa950524SAyala Beker case WLAN_CIPHER_SUITE_AES_CMAC: 3328aa950524SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_CCM); 3329aa950524SAyala Beker break; 33308e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_128: 33318e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_256: 33328e160ab8SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_GCMP); 33338e160ab8SAyala Beker break; 3334aa950524SAyala Beker default: 3335aa950524SAyala Beker return -EINVAL; 3336aa950524SAyala Beker } 3337aa950524SAyala Beker 33388e160ab8SAyala Beker memcpy(igtk_cmd.igtk, keyconf->key, keyconf->keylen); 33398e160ab8SAyala Beker if (keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 33408e160ab8SAyala Beker igtk_cmd.ctrl_flags |= 33418e160ab8SAyala Beker cpu_to_le32(STA_KEY_FLG_KEY_32BYTES); 3342e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3343e705c121SKalle Valo pn = seq.aes_cmac.pn; 3344e705c121SKalle Valo igtk_cmd.receive_seq_cnt = cpu_to_le64(((u64) pn[5] << 0) | 3345e705c121SKalle Valo ((u64) pn[4] << 8) | 3346e705c121SKalle Valo ((u64) pn[3] << 16) | 3347e705c121SKalle Valo ((u64) pn[2] << 24) | 3348e705c121SKalle Valo ((u64) pn[1] << 32) | 3349e705c121SKalle Valo ((u64) pn[0] << 40)); 3350e705c121SKalle Valo } 3351e705c121SKalle Valo 3352e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "%s igtk for sta %u\n", 3353e705c121SKalle Valo remove_key ? "removing" : "installing", 3354e705c121SKalle Valo igtk_cmd.sta_id); 3355e705c121SKalle Valo 33568e160ab8SAyala Beker if (!iwl_mvm_has_new_rx_api(mvm)) { 33578e160ab8SAyala Beker struct iwl_mvm_mgmt_mcast_key_cmd_v1 igtk_cmd_v1 = { 33588e160ab8SAyala Beker .ctrl_flags = igtk_cmd.ctrl_flags, 33598e160ab8SAyala Beker .key_id = igtk_cmd.key_id, 33608e160ab8SAyala Beker .sta_id = igtk_cmd.sta_id, 33618e160ab8SAyala Beker .receive_seq_cnt = igtk_cmd.receive_seq_cnt 33628e160ab8SAyala Beker }; 33638e160ab8SAyala Beker 33648e160ab8SAyala Beker memcpy(igtk_cmd_v1.igtk, igtk_cmd.igtk, 33658e160ab8SAyala Beker ARRAY_SIZE(igtk_cmd_v1.igtk)); 33668e160ab8SAyala Beker return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 33678e160ab8SAyala Beker sizeof(igtk_cmd_v1), &igtk_cmd_v1); 33688e160ab8SAyala Beker } 3369e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 3370e705c121SKalle Valo sizeof(igtk_cmd), &igtk_cmd); 3371e705c121SKalle Valo } 3372e705c121SKalle Valo 3373e705c121SKalle Valo 3374e705c121SKalle Valo static inline u8 *iwl_mvm_get_mac_addr(struct iwl_mvm *mvm, 3375e705c121SKalle Valo struct ieee80211_vif *vif, 3376e705c121SKalle Valo struct ieee80211_sta *sta) 3377e705c121SKalle Valo { 3378e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3379e705c121SKalle Valo 3380e705c121SKalle Valo if (sta) 3381e705c121SKalle Valo return sta->addr; 3382e705c121SKalle Valo 3383e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 33840ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 3385e705c121SKalle Valo u8 sta_id = mvmvif->ap_sta_id; 3386e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 3387e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3388e705c121SKalle Valo return sta->addr; 3389e705c121SKalle Valo } 3390e705c121SKalle Valo 3391e705c121SKalle Valo 3392e705c121SKalle Valo return NULL; 3393e705c121SKalle Valo } 3394e705c121SKalle Valo 3395e705c121SKalle Valo static int __iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3396e705c121SKalle Valo struct ieee80211_vif *vif, 3397e705c121SKalle Valo struct ieee80211_sta *sta, 3398e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 33994615fd15SEmmanuel Grumbach u8 key_offset, 3400e705c121SKalle Valo bool mcast) 3401e705c121SKalle Valo { 3402e705c121SKalle Valo int ret; 3403e705c121SKalle Valo const u8 *addr; 3404e705c121SKalle Valo struct ieee80211_key_seq seq; 3405e705c121SKalle Valo u16 p1k[5]; 340685aeb58cSDavid Spinadel u32 sta_id; 34074883145aSEmmanuel Grumbach bool mfp = false; 340885aeb58cSDavid Spinadel 340985aeb58cSDavid Spinadel if (sta) { 341085aeb58cSDavid Spinadel struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 341185aeb58cSDavid Spinadel 341285aeb58cSDavid Spinadel sta_id = mvm_sta->sta_id; 34134883145aSEmmanuel Grumbach mfp = sta->mfp; 341485aeb58cSDavid Spinadel } else if (vif->type == NL80211_IFTYPE_AP && 341585aeb58cSDavid Spinadel !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { 341685aeb58cSDavid Spinadel struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 341785aeb58cSDavid Spinadel 341885aeb58cSDavid Spinadel sta_id = mvmvif->mcast_sta.sta_id; 341985aeb58cSDavid Spinadel } else { 342085aeb58cSDavid Spinadel IWL_ERR(mvm, "Failed to find station id\n"); 342185aeb58cSDavid Spinadel return -EINVAL; 342285aeb58cSDavid Spinadel } 3423e705c121SKalle Valo 3424e705c121SKalle Valo switch (keyconf->cipher) { 3425e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 3426e705c121SKalle Valo addr = iwl_mvm_get_mac_addr(mvm, vif, sta); 3427e705c121SKalle Valo /* get phase 1 key from mac80211 */ 3428e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3429e705c121SKalle Valo ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k); 343085aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 34314883145aSEmmanuel Grumbach seq.tkip.iv32, p1k, 0, key_offset, 34324883145aSEmmanuel Grumbach mfp); 3433e705c121SKalle Valo break; 3434e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 3435e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 3436e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 34372a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 34382a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 343985aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 34404883145aSEmmanuel Grumbach 0, NULL, 0, key_offset, mfp); 3441e705c121SKalle Valo break; 3442e705c121SKalle Valo default: 344385aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 34444883145aSEmmanuel Grumbach 0, NULL, 0, key_offset, mfp); 3445e705c121SKalle Valo } 3446e705c121SKalle Valo 3447e705c121SKalle Valo return ret; 3448e705c121SKalle Valo } 3449e705c121SKalle Valo 3450e705c121SKalle Valo int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3451e705c121SKalle Valo struct ieee80211_vif *vif, 3452e705c121SKalle Valo struct ieee80211_sta *sta, 3453e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 34544615fd15SEmmanuel Grumbach u8 key_offset) 3455e705c121SKalle Valo { 3456e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 34575f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 345885aeb58cSDavid Spinadel u8 sta_id = IWL_MVM_INVALID_STA; 3459e705c121SKalle Valo int ret; 3460e705c121SKalle Valo static const u8 __maybe_unused zero_addr[ETH_ALEN] = {0}; 3461e705c121SKalle Valo 3462e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3463e705c121SKalle Valo 346485aeb58cSDavid Spinadel if (vif->type != NL80211_IFTYPE_AP || 346585aeb58cSDavid Spinadel keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) { 3466e705c121SKalle Valo /* Get the station id from the mvm local station table */ 34675f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 34685f7a1847SJohannes Berg if (!mvm_sta) { 34695f7a1847SJohannes Berg IWL_ERR(mvm, "Failed to find station\n"); 3470e705c121SKalle Valo return -EINVAL; 3471e705c121SKalle Valo } 34725f7a1847SJohannes Berg sta_id = mvm_sta->sta_id; 3473e705c121SKalle Valo 3474e705c121SKalle Valo /* 3475e705c121SKalle Valo * It is possible that the 'sta' parameter is NULL, and thus 347685aeb58cSDavid Spinadel * there is a need to retrieve the sta from the local station 347785aeb58cSDavid Spinadel * table. 3478e705c121SKalle Valo */ 3479e705c121SKalle Valo if (!sta) { 348085aeb58cSDavid Spinadel sta = rcu_dereference_protected( 348185aeb58cSDavid Spinadel mvm->fw_id_to_mac_id[sta_id], 3482e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3483e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) { 3484e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 3485e705c121SKalle Valo return -EINVAL; 3486e705c121SKalle Valo } 3487e705c121SKalle Valo } 3488e705c121SKalle Valo 3489e705c121SKalle Valo if (WARN_ON_ONCE(iwl_mvm_sta_from_mac80211(sta)->vif != vif)) 3490e705c121SKalle Valo return -EINVAL; 3491e829b17cSBeni Lev } else { 3492e829b17cSBeni Lev struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3493e829b17cSBeni Lev 3494e829b17cSBeni Lev sta_id = mvmvif->mcast_sta.sta_id; 3495e829b17cSBeni Lev } 3496e829b17cSBeni Lev 3497e829b17cSBeni Lev if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3498e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3499e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) { 3500e829b17cSBeni Lev ret = iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, false); 3501e829b17cSBeni Lev goto end; 350285aeb58cSDavid Spinadel } 3503e705c121SKalle Valo 35044615fd15SEmmanuel Grumbach /* If the key_offset is not pre-assigned, we need to find a 35054615fd15SEmmanuel Grumbach * new offset to use. In normal cases, the offset is not 35064615fd15SEmmanuel Grumbach * pre-assigned, but during HW_RESTART we want to reuse the 35074615fd15SEmmanuel Grumbach * same indices, so we pass them when this function is called. 35084615fd15SEmmanuel Grumbach * 35094615fd15SEmmanuel Grumbach * In D3 entry, we need to hardcoded the indices (because the 35104615fd15SEmmanuel Grumbach * firmware hardcodes the PTK offset to 0). In this case, we 35114615fd15SEmmanuel Grumbach * need to make sure we don't overwrite the hw_key_idx in the 35124615fd15SEmmanuel Grumbach * keyconf structure, because otherwise we cannot configure 35134615fd15SEmmanuel Grumbach * the original ones back when resuming. 3514e705c121SKalle Valo */ 35154615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) { 35164615fd15SEmmanuel Grumbach key_offset = iwl_mvm_set_fw_key_idx(mvm); 35174615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) 3518e705c121SKalle Valo return -ENOSPC; 35194615fd15SEmmanuel Grumbach keyconf->hw_key_idx = key_offset; 3520e705c121SKalle Valo } 3521e705c121SKalle Valo 35224615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, key_offset, mcast); 35239c3deeb5SLuca Coelho if (ret) 3524e705c121SKalle Valo goto end; 3525e705c121SKalle Valo 3526e705c121SKalle Valo /* 3527e705c121SKalle Valo * For WEP, the same key is used for multicast and unicast. Upload it 3528e705c121SKalle Valo * again, using the same key offset, and now pointing the other one 3529e705c121SKalle Valo * to the same key slot (offset). 3530e705c121SKalle Valo * If this fails, remove the original as well. 3531e705c121SKalle Valo */ 353285aeb58cSDavid Spinadel if ((keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 353385aeb58cSDavid Spinadel keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) && 353485aeb58cSDavid Spinadel sta) { 35354615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, 35364615fd15SEmmanuel Grumbach key_offset, !mcast); 3537e705c121SKalle Valo if (ret) { 3538e705c121SKalle Valo __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 35399c3deeb5SLuca Coelho goto end; 3540e705c121SKalle Valo } 3541e705c121SKalle Valo } 3542e705c121SKalle Valo 35439c3deeb5SLuca Coelho __set_bit(key_offset, mvm->fw_key_table); 35449c3deeb5SLuca Coelho 3545e705c121SKalle Valo end: 3546e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "key: cipher=%x len=%d idx=%d sta=%pM ret=%d\n", 3547e705c121SKalle Valo keyconf->cipher, keyconf->keylen, keyconf->keyidx, 3548e705c121SKalle Valo sta ? sta->addr : zero_addr, ret); 3549e705c121SKalle Valo return ret; 3550e705c121SKalle Valo } 3551e705c121SKalle Valo 3552e705c121SKalle Valo int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, 3553e705c121SKalle Valo struct ieee80211_vif *vif, 3554e705c121SKalle Valo struct ieee80211_sta *sta, 3555e705c121SKalle Valo struct ieee80211_key_conf *keyconf) 3556e705c121SKalle Valo { 3557e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 35585f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 35590ae98812SSara Sharon u8 sta_id = IWL_MVM_INVALID_STA; 3560e705c121SKalle Valo int ret, i; 3561e705c121SKalle Valo 3562e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3563e705c121SKalle Valo 35645f7a1847SJohannes Berg /* Get the station from the mvm local station table */ 35655f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 356671793b7dSLuca Coelho if (mvm_sta) 3567cd4d23c1SIlan Peer sta_id = mvm_sta->sta_id; 356885aeb58cSDavid Spinadel else if (!sta && vif->type == NL80211_IFTYPE_AP && mcast) 356985aeb58cSDavid Spinadel sta_id = iwl_mvm_vif_from_mac80211(vif)->mcast_sta.sta_id; 357085aeb58cSDavid Spinadel 3571e705c121SKalle Valo 3572e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "mvm remove dynamic key: idx=%d sta=%d\n", 3573e705c121SKalle Valo keyconf->keyidx, sta_id); 3574e705c121SKalle Valo 357571793b7dSLuca Coelho if (mvm_sta && (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 35768e160ab8SAyala Beker keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 357771793b7dSLuca Coelho keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) 3578e705c121SKalle Valo return iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, true); 3579e705c121SKalle Valo 3580e705c121SKalle Valo if (!__test_and_clear_bit(keyconf->hw_key_idx, mvm->fw_key_table)) { 3581e705c121SKalle Valo IWL_ERR(mvm, "offset %d not used in fw key table.\n", 3582e705c121SKalle Valo keyconf->hw_key_idx); 3583e705c121SKalle Valo return -ENOENT; 3584e705c121SKalle Valo } 3585e705c121SKalle Valo 3586e705c121SKalle Valo /* track which key was deleted last */ 3587e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3588e705c121SKalle Valo if (mvm->fw_key_deleted[i] < U8_MAX) 3589e705c121SKalle Valo mvm->fw_key_deleted[i]++; 3590e705c121SKalle Valo } 3591e705c121SKalle Valo mvm->fw_key_deleted[keyconf->hw_key_idx] = 0; 3592e705c121SKalle Valo 359385aeb58cSDavid Spinadel if (sta && !mvm_sta) { 3594e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "station non-existent, early return.\n"); 3595e705c121SKalle Valo return 0; 3596e705c121SKalle Valo } 3597e705c121SKalle Valo 3598e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 3599e705c121SKalle Valo if (ret) 3600e705c121SKalle Valo return ret; 3601e705c121SKalle Valo 3602e705c121SKalle Valo /* delete WEP key twice to get rid of (now useless) offset */ 3603e705c121SKalle Valo if (keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 3604e705c121SKalle Valo keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) 3605e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, !mcast); 3606e705c121SKalle Valo 3607e705c121SKalle Valo return ret; 3608e705c121SKalle Valo } 3609e705c121SKalle Valo 3610e705c121SKalle Valo void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, 3611e705c121SKalle Valo struct ieee80211_vif *vif, 3612e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3613e705c121SKalle Valo struct ieee80211_sta *sta, u32 iv32, 3614e705c121SKalle Valo u16 *phase1key) 3615e705c121SKalle Valo { 3616e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3617e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 36184883145aSEmmanuel Grumbach bool mfp = sta ? sta->mfp : false; 3619e705c121SKalle Valo 3620e705c121SKalle Valo rcu_read_lock(); 3621e705c121SKalle Valo 36225f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 36235f7a1847SJohannes Berg if (WARN_ON_ONCE(!mvm_sta)) 362412f17211SEmmanuel Grumbach goto unlock; 362585aeb58cSDavid Spinadel iwl_mvm_send_sta_key(mvm, mvm_sta->sta_id, keyconf, mcast, 36264883145aSEmmanuel Grumbach iv32, phase1key, CMD_ASYNC, keyconf->hw_key_idx, 36274883145aSEmmanuel Grumbach mfp); 362812f17211SEmmanuel Grumbach 362912f17211SEmmanuel Grumbach unlock: 3630e705c121SKalle Valo rcu_read_unlock(); 3631e705c121SKalle Valo } 3632e705c121SKalle Valo 3633e705c121SKalle Valo void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, 3634e705c121SKalle Valo struct ieee80211_sta *sta) 3635e705c121SKalle Valo { 3636e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3637e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3638e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3639e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3640e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_PS), 3641e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3642e705c121SKalle Valo }; 3643e705c121SKalle Valo int ret; 3644e705c121SKalle Valo 3645854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3646854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3647e705c121SKalle Valo if (ret) 3648e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3649e705c121SKalle Valo } 3650e705c121SKalle Valo 3651e705c121SKalle Valo void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, 3652e705c121SKalle Valo struct ieee80211_sta *sta, 3653e705c121SKalle Valo enum ieee80211_frame_release_type reason, 3654e705c121SKalle Valo u16 cnt, u16 tids, bool more_data, 36559a3fcf91SSara Sharon bool single_sta_queue) 3656e705c121SKalle Valo { 3657e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3658e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3659e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3660e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3661e705c121SKalle Valo .modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT, 3662e705c121SKalle Valo .sleep_tx_count = cpu_to_le16(cnt), 3663e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3664e705c121SKalle Valo }; 3665e705c121SKalle Valo int tid, ret; 3666e705c121SKalle Valo unsigned long _tids = tids; 3667e705c121SKalle Valo 3668e705c121SKalle Valo /* convert TIDs to ACs - we don't support TSPEC so that's OK 3669e705c121SKalle Valo * Note that this field is reserved and unused by firmware not 3670e705c121SKalle Valo * supporting GO uAPSD, so it's safe to always do this. 3671e705c121SKalle Valo */ 3672e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) 3673e705c121SKalle Valo cmd.awake_acs |= BIT(tid_to_ucode_ac[tid]); 3674e705c121SKalle Valo 36759a3fcf91SSara Sharon /* If we're releasing frames from aggregation or dqa queues then check 36769a3fcf91SSara Sharon * if all the queues that we're releasing frames from, combined, have: 3677e705c121SKalle Valo * - more frames than the service period, in which case more_data 3678e705c121SKalle Valo * needs to be set 3679e705c121SKalle Valo * - fewer than 'cnt' frames, in which case we need to adjust the 3680e705c121SKalle Valo * firmware command (but do that unconditionally) 3681e705c121SKalle Valo */ 36829a3fcf91SSara Sharon if (single_sta_queue) { 3683e705c121SKalle Valo int remaining = cnt; 368436be0eb6SEmmanuel Grumbach int sleep_tx_count; 3685e705c121SKalle Valo 3686e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3687e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) { 3688e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 3689e705c121SKalle Valo u16 n_queued; 3690e705c121SKalle Valo 3691e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 3692e705c121SKalle Valo 3693dd32162dSLiad Kaufman n_queued = iwl_mvm_tid_queued(mvm, tid_data); 3694e705c121SKalle Valo if (n_queued > remaining) { 3695e705c121SKalle Valo more_data = true; 3696e705c121SKalle Valo remaining = 0; 3697e705c121SKalle Valo break; 3698e705c121SKalle Valo } 3699e705c121SKalle Valo remaining -= n_queued; 3700e705c121SKalle Valo } 370136be0eb6SEmmanuel Grumbach sleep_tx_count = cnt - remaining; 370236be0eb6SEmmanuel Grumbach if (reason == IEEE80211_FRAME_RELEASE_UAPSD) 370336be0eb6SEmmanuel Grumbach mvmsta->sleep_tx_count = sleep_tx_count; 3704e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3705e705c121SKalle Valo 370636be0eb6SEmmanuel Grumbach cmd.sleep_tx_count = cpu_to_le16(sleep_tx_count); 3707e705c121SKalle Valo if (WARN_ON(cnt - remaining == 0)) { 3708e705c121SKalle Valo ieee80211_sta_eosp(sta); 3709e705c121SKalle Valo return; 3710e705c121SKalle Valo } 3711e705c121SKalle Valo } 3712e705c121SKalle Valo 3713e705c121SKalle Valo /* Note: this is ignored by firmware not supporting GO uAPSD */ 3714e705c121SKalle Valo if (more_data) 3715ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_MOREDATA; 3716e705c121SKalle Valo 3717e705c121SKalle Valo if (reason == IEEE80211_FRAME_RELEASE_PSPOLL) { 3718e705c121SKalle Valo mvmsta->next_status_eosp = true; 3719ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_PS_POLL; 3720e705c121SKalle Valo } else { 3721ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_UAPSD; 3722e705c121SKalle Valo } 3723e705c121SKalle Valo 3724156f92f2SEmmanuel Grumbach /* block the Tx queues until the FW updated the sleep Tx count */ 3725156f92f2SEmmanuel Grumbach iwl_trans_block_txq_ptrs(mvm->trans, true); 3726156f92f2SEmmanuel Grumbach 3727156f92f2SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 3728156f92f2SEmmanuel Grumbach CMD_ASYNC | CMD_WANT_ASYNC_CALLBACK, 3729854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3730e705c121SKalle Valo if (ret) 3731e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3732e705c121SKalle Valo } 3733e705c121SKalle Valo 3734e705c121SKalle Valo void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm, 3735e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 3736e705c121SKalle Valo { 3737e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 3738e705c121SKalle Valo struct iwl_mvm_eosp_notification *notif = (void *)pkt->data; 3739e705c121SKalle Valo struct ieee80211_sta *sta; 3740e705c121SKalle Valo u32 sta_id = le32_to_cpu(notif->sta_id); 3741e705c121SKalle Valo 3742e705c121SKalle Valo if (WARN_ON_ONCE(sta_id >= IWL_MVM_STATION_COUNT)) 3743e705c121SKalle Valo return; 3744e705c121SKalle Valo 3745e705c121SKalle Valo rcu_read_lock(); 3746e705c121SKalle Valo sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 3747e705c121SKalle Valo if (!IS_ERR_OR_NULL(sta)) 3748e705c121SKalle Valo ieee80211_sta_eosp(sta); 3749e705c121SKalle Valo rcu_read_unlock(); 3750e705c121SKalle Valo } 3751e705c121SKalle Valo 3752e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm, 3753e705c121SKalle Valo struct iwl_mvm_sta *mvmsta, bool disable) 3754e705c121SKalle Valo { 3755e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3756e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3757e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3758e705c121SKalle Valo .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 3759e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 3760e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3761e705c121SKalle Valo }; 3762e705c121SKalle Valo int ret; 3763e705c121SKalle Valo 3764854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3765854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3766e705c121SKalle Valo if (ret) 3767e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3768e705c121SKalle Valo } 3769e705c121SKalle Valo 3770e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm, 3771e705c121SKalle Valo struct ieee80211_sta *sta, 3772e705c121SKalle Valo bool disable) 3773e705c121SKalle Valo { 3774e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3775e705c121SKalle Valo 3776e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 3777e705c121SKalle Valo 3778e705c121SKalle Valo if (mvm_sta->disable_tx == disable) { 3779e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 3780e705c121SKalle Valo return; 3781e705c121SKalle Valo } 3782e705c121SKalle Valo 3783e705c121SKalle Valo mvm_sta->disable_tx = disable; 3784e705c121SKalle Valo 3785c8f54701SJohannes Berg /* Tell mac80211 to start/stop queuing tx for this station */ 3786e705c121SKalle Valo ieee80211_sta_block_awake(mvm->hw, sta, disable); 3787e705c121SKalle Valo 3788e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvm_sta, disable); 3789e705c121SKalle Valo 3790e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 3791e705c121SKalle Valo } 3792e705c121SKalle Valo 3793ced19f26SSara Sharon static void iwl_mvm_int_sta_modify_disable_tx(struct iwl_mvm *mvm, 3794ced19f26SSara Sharon struct iwl_mvm_vif *mvmvif, 3795ced19f26SSara Sharon struct iwl_mvm_int_sta *sta, 3796ced19f26SSara Sharon bool disable) 3797ced19f26SSara Sharon { 3798ced19f26SSara Sharon u32 id = FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color); 3799ced19f26SSara Sharon struct iwl_mvm_add_sta_cmd cmd = { 3800ced19f26SSara Sharon .add_modify = STA_MODE_MODIFY, 3801ced19f26SSara Sharon .sta_id = sta->sta_id, 3802ced19f26SSara Sharon .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 3803ced19f26SSara Sharon .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 3804ced19f26SSara Sharon .mac_id_n_color = cpu_to_le32(id), 3805ced19f26SSara Sharon }; 3806ced19f26SSara Sharon int ret; 3807ced19f26SSara Sharon 3808ced19f26SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 0, 3809ced19f26SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3810ced19f26SSara Sharon if (ret) 3811ced19f26SSara Sharon IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3812ced19f26SSara Sharon } 3813ced19f26SSara Sharon 3814e705c121SKalle Valo void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm, 3815e705c121SKalle Valo struct iwl_mvm_vif *mvmvif, 3816e705c121SKalle Valo bool disable) 3817e705c121SKalle Valo { 3818e705c121SKalle Valo struct ieee80211_sta *sta; 3819e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3820e705c121SKalle Valo int i; 3821e705c121SKalle Valo 3822e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3823e705c121SKalle Valo 3824e705c121SKalle Valo /* Block/unblock all the stations of the given mvmvif */ 38250ae98812SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 3826e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 3827e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3828e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) 3829e705c121SKalle Valo continue; 3830e705c121SKalle Valo 3831e705c121SKalle Valo mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3832e705c121SKalle Valo if (mvm_sta->mac_id_n_color != 3833e705c121SKalle Valo FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)) 3834e705c121SKalle Valo continue; 3835e705c121SKalle Valo 3836e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx_ap(mvm, sta, disable); 3837e705c121SKalle Valo } 3838ced19f26SSara Sharon 3839ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3840ced19f26SSara Sharon return; 3841ced19f26SSara Sharon 3842ced19f26SSara Sharon /* Need to block/unblock also multicast station */ 3843ced19f26SSara Sharon if (mvmvif->mcast_sta.sta_id != IWL_MVM_INVALID_STA) 3844ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 3845ced19f26SSara Sharon &mvmvif->mcast_sta, disable); 3846ced19f26SSara Sharon 3847ced19f26SSara Sharon /* 3848ced19f26SSara Sharon * Only unblock the broadcast station (FW blocks it for immediate 3849ced19f26SSara Sharon * quiet, not the driver) 3850ced19f26SSara Sharon */ 3851ced19f26SSara Sharon if (!disable && mvmvif->bcast_sta.sta_id != IWL_MVM_INVALID_STA) 3852ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 3853ced19f26SSara Sharon &mvmvif->bcast_sta, disable); 3854e705c121SKalle Valo } 3855e705c121SKalle Valo 3856e705c121SKalle Valo void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 3857e705c121SKalle Valo { 3858e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3859e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 3860e705c121SKalle Valo 3861e705c121SKalle Valo rcu_read_lock(); 3862e705c121SKalle Valo 3863e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->ap_sta_id); 3864e705c121SKalle Valo 3865e705c121SKalle Valo if (!WARN_ON(!mvmsta)) 3866e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true); 3867e705c121SKalle Valo 3868e705c121SKalle Valo rcu_read_unlock(); 3869e705c121SKalle Valo } 3870dd32162dSLiad Kaufman 3871dd32162dSLiad Kaufman u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data) 3872dd32162dSLiad Kaufman { 3873dd32162dSLiad Kaufman u16 sn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3874dd32162dSLiad Kaufman 3875dd32162dSLiad Kaufman /* 38762f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 3877dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 3878dd32162dSLiad Kaufman */ 3879dd32162dSLiad Kaufman if (mvm->trans->cfg->gen2) 3880dd32162dSLiad Kaufman sn &= 0xff; 3881dd32162dSLiad Kaufman 3882dd32162dSLiad Kaufman return ieee80211_sn_sub(sn, tid_data->next_reclaimed); 3883dd32162dSLiad Kaufman } 3884