1e705c121SKalle Valo /****************************************************************************** 2e705c121SKalle Valo * 3e705c121SKalle Valo * This file is provided under a dual BSD/GPLv2 license. When using or 4e705c121SKalle Valo * redistributing this file, you may do so under either license. 5e705c121SKalle Valo * 6e705c121SKalle Valo * GPL LICENSE SUMMARY 7e705c121SKalle Valo * 89617040eSEmmanuel Grumbach * Copyright(c) 2012 - 2015, 2018 - 2020 Intel Corporation. All rights reserved. 9e705c121SKalle Valo * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 1026d6c16bSSara Sharon * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 11e705c121SKalle Valo * 12e705c121SKalle Valo * This program is free software; you can redistribute it and/or modify 13e705c121SKalle Valo * it under the terms of version 2 of the GNU General Public License as 14e705c121SKalle Valo * published by the Free Software Foundation. 15e705c121SKalle Valo * 16e705c121SKalle Valo * This program is distributed in the hope that it will be useful, but 17e705c121SKalle Valo * WITHOUT ANY WARRANTY; without even the implied warranty of 18e705c121SKalle Valo * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19e705c121SKalle Valo * General Public License for more details. 20e705c121SKalle Valo * 21e705c121SKalle Valo * The full GNU General Public License is included in this distribution 22e705c121SKalle Valo * in the file called COPYING. 23e705c121SKalle Valo * 24e705c121SKalle Valo * Contact Information: 25cb2f8277SEmmanuel Grumbach * Intel Linux Wireless <linuxwifi@intel.com> 26e705c121SKalle Valo * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 27e705c121SKalle Valo * 28e705c121SKalle Valo * BSD LICENSE 29e705c121SKalle Valo * 309617040eSEmmanuel Grumbach * Copyright(c) 2012 - 2015, 2018 - 2020 Intel Corporation. All rights reserved. 31e705c121SKalle Valo * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 3226d6c16bSSara Sharon * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 33e705c121SKalle Valo * All rights reserved. 34e705c121SKalle Valo * 35e705c121SKalle Valo * Redistribution and use in source and binary forms, with or without 36e705c121SKalle Valo * modification, are permitted provided that the following conditions 37e705c121SKalle Valo * are met: 38e705c121SKalle Valo * 39e705c121SKalle Valo * * Redistributions of source code must retain the above copyright 40e705c121SKalle Valo * notice, this list of conditions and the following disclaimer. 41e705c121SKalle Valo * * Redistributions in binary form must reproduce the above copyright 42e705c121SKalle Valo * notice, this list of conditions and the following disclaimer in 43e705c121SKalle Valo * the documentation and/or other materials provided with the 44e705c121SKalle Valo * distribution. 45e705c121SKalle Valo * * Neither the name Intel Corporation nor the names of its 46e705c121SKalle Valo * contributors may be used to endorse or promote products derived 47e705c121SKalle Valo * from this software without specific prior written permission. 48e705c121SKalle Valo * 49e705c121SKalle Valo * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 50e705c121SKalle Valo * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 51e705c121SKalle Valo * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 52e705c121SKalle Valo * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 53e705c121SKalle Valo * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 54e705c121SKalle Valo * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 55e705c121SKalle Valo * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 56e705c121SKalle Valo * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 57e705c121SKalle Valo * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 58e705c121SKalle Valo * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 59e705c121SKalle Valo * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 60e705c121SKalle Valo * 61e705c121SKalle Valo *****************************************************************************/ 62e705c121SKalle Valo #include <net/mac80211.h> 63e705c121SKalle Valo 64e705c121SKalle Valo #include "mvm.h" 65e705c121SKalle Valo #include "sta.h" 66e705c121SKalle Valo #include "rs.h" 67e705c121SKalle Valo 68854c5705SSara Sharon /* 69854c5705SSara Sharon * New version of ADD_STA_sta command added new fields at the end of the 70854c5705SSara Sharon * structure, so sending the size of the relevant API's structure is enough to 71854c5705SSara Sharon * support both API versions. 72854c5705SSara Sharon */ 73854c5705SSara Sharon static inline int iwl_mvm_add_sta_cmd_size(struct iwl_mvm *mvm) 74854c5705SSara Sharon { 75ced19f26SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) || 76ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 77ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd); 78ced19f26SSara Sharon else 79ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd_v7); 80854c5705SSara Sharon } 81854c5705SSara Sharon 82e705c121SKalle Valo static int iwl_mvm_find_free_sta_id(struct iwl_mvm *mvm, 83e705c121SKalle Valo enum nl80211_iftype iftype) 84e705c121SKalle Valo { 85e705c121SKalle Valo int sta_id; 86e705c121SKalle Valo u32 reserved_ids = 0; 87e705c121SKalle Valo 88be9ae34eSNathan Errera BUILD_BUG_ON(IWL_MVM_STATION_COUNT_MAX > 32); 89e705c121SKalle Valo WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)); 90e705c121SKalle Valo 91e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 92e705c121SKalle Valo 93e705c121SKalle Valo /* d0i3/d3 assumes the AP's sta_id (of sta vif) is 0. reserve it. */ 94e705c121SKalle Valo if (iftype != NL80211_IFTYPE_STATION) 95e705c121SKalle Valo reserved_ids = BIT(0); 96e705c121SKalle Valo 97e705c121SKalle Valo /* Don't take rcu_read_lock() since we are protected by mvm->mutex */ 98be9ae34eSNathan Errera for (sta_id = 0; sta_id < mvm->fw->ucode_capa.num_stations; sta_id++) { 99e705c121SKalle Valo if (BIT(sta_id) & reserved_ids) 100e705c121SKalle Valo continue; 101e705c121SKalle Valo 102e705c121SKalle Valo if (!rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 103e705c121SKalle Valo lockdep_is_held(&mvm->mutex))) 104e705c121SKalle Valo return sta_id; 105e705c121SKalle Valo } 1060ae98812SSara Sharon return IWL_MVM_INVALID_STA; 107e705c121SKalle Valo } 108e705c121SKalle Valo 109e705c121SKalle Valo /* send station add/update command to firmware */ 110e705c121SKalle Valo int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 11124afba76SLiad Kaufman bool update, unsigned int flags) 112e705c121SKalle Valo { 113e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 114e705c121SKalle Valo struct iwl_mvm_add_sta_cmd add_sta_cmd = { 115e705c121SKalle Valo .sta_id = mvm_sta->sta_id, 116e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color), 117e705c121SKalle Valo .add_modify = update ? 1 : 0, 118e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_FAT_EN_MSK | 1198addabf8SNaftali Goldstein STA_FLG_MIMO_EN_MSK | 1208addabf8SNaftali Goldstein STA_FLG_RTS_MIMO_PROT), 121cf0cda19SLiad Kaufman .tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg), 122e705c121SKalle Valo }; 123e705c121SKalle Valo int ret; 124e705c121SKalle Valo u32 status; 125e705c121SKalle Valo u32 agg_size = 0, mpdu_dens = 0; 126e705c121SKalle Valo 127ced19f26SSara Sharon if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 128ced19f26SSara Sharon add_sta_cmd.station_type = mvm_sta->sta_type; 129ced19f26SSara Sharon 13024afba76SLiad Kaufman if (!update || (flags & STA_MODIFY_QUEUES)) { 131e705c121SKalle Valo memcpy(&add_sta_cmd.addr, sta->addr, ETH_ALEN); 13224afba76SLiad Kaufman 133bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) { 134bb49701bSSara Sharon add_sta_cmd.tfd_queue_msk = 135bb49701bSSara Sharon cpu_to_le32(mvm_sta->tfd_queue_msk); 136bb49701bSSara Sharon 13724afba76SLiad Kaufman if (flags & STA_MODIFY_QUEUES) 13824afba76SLiad Kaufman add_sta_cmd.modify_mask |= STA_MODIFY_QUEUES; 139bb49701bSSara Sharon } else { 140bb49701bSSara Sharon WARN_ON(flags & STA_MODIFY_QUEUES); 141bb49701bSSara Sharon } 142e705c121SKalle Valo } 143e705c121SKalle Valo 144e705c121SKalle Valo switch (sta->bandwidth) { 145e705c121SKalle Valo case IEEE80211_STA_RX_BW_160: 146e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_160MHZ); 147e705c121SKalle Valo /* fall through */ 148e705c121SKalle Valo case IEEE80211_STA_RX_BW_80: 149e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_80MHZ); 150e705c121SKalle Valo /* fall through */ 151e705c121SKalle Valo case IEEE80211_STA_RX_BW_40: 152e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_40MHZ); 153e705c121SKalle Valo /* fall through */ 154e705c121SKalle Valo case IEEE80211_STA_RX_BW_20: 155e705c121SKalle Valo if (sta->ht_cap.ht_supported) 156e705c121SKalle Valo add_sta_cmd.station_flags |= 157e705c121SKalle Valo cpu_to_le32(STA_FLG_FAT_EN_20MHZ); 158e705c121SKalle Valo break; 159e705c121SKalle Valo } 160e705c121SKalle Valo 161e705c121SKalle Valo switch (sta->rx_nss) { 162e705c121SKalle Valo case 1: 163e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 164e705c121SKalle Valo break; 165e705c121SKalle Valo case 2: 166e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO2); 167e705c121SKalle Valo break; 168e705c121SKalle Valo case 3 ... 8: 169e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO3); 170e705c121SKalle Valo break; 171e705c121SKalle Valo } 172e705c121SKalle Valo 173e705c121SKalle Valo switch (sta->smps_mode) { 174e705c121SKalle Valo case IEEE80211_SMPS_AUTOMATIC: 175e705c121SKalle Valo case IEEE80211_SMPS_NUM_MODES: 176e705c121SKalle Valo WARN_ON(1); 177e705c121SKalle Valo break; 178e705c121SKalle Valo case IEEE80211_SMPS_STATIC: 179e705c121SKalle Valo /* override NSS */ 180e705c121SKalle Valo add_sta_cmd.station_flags &= ~cpu_to_le32(STA_FLG_MIMO_EN_MSK); 181e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); 182e705c121SKalle Valo break; 183e705c121SKalle Valo case IEEE80211_SMPS_DYNAMIC: 184e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_RTS_MIMO_PROT); 185e705c121SKalle Valo break; 186e705c121SKalle Valo case IEEE80211_SMPS_OFF: 187e705c121SKalle Valo /* nothing */ 188e705c121SKalle Valo break; 189e705c121SKalle Valo } 190e705c121SKalle Valo 191e705c121SKalle Valo if (sta->ht_cap.ht_supported) { 192e705c121SKalle Valo add_sta_cmd.station_flags_msk |= 193e705c121SKalle Valo cpu_to_le32(STA_FLG_MAX_AGG_SIZE_MSK | 194e705c121SKalle Valo STA_FLG_AGG_MPDU_DENS_MSK); 195e705c121SKalle Valo 196e705c121SKalle Valo mpdu_dens = sta->ht_cap.ampdu_density; 197e705c121SKalle Valo } 198e705c121SKalle Valo 199c8a2e7a2SMordechay Goodstein 200e705c121SKalle Valo if (sta->vht_cap.vht_supported) { 201e705c121SKalle Valo agg_size = sta->vht_cap.cap & 202e705c121SKalle Valo IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; 203e705c121SKalle Valo agg_size >>= 204e705c121SKalle Valo IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; 205e705c121SKalle Valo } else if (sta->ht_cap.ht_supported) { 206e705c121SKalle Valo agg_size = sta->ht_cap.ampdu_factor; 207e705c121SKalle Valo } 208e705c121SKalle Valo 209c8a2e7a2SMordechay Goodstein /* D6.0 10.12.2 A-MPDU length limit rules 210c8a2e7a2SMordechay Goodstein * A STA indicates the maximum length of the A-MPDU preEOF padding 211c8a2e7a2SMordechay Goodstein * that it can receive in an HE PPDU in the Maximum A-MPDU Length 212c8a2e7a2SMordechay Goodstein * Exponent field in its HT Capabilities, VHT Capabilities, 213c8a2e7a2SMordechay Goodstein * and HE 6 GHz Band Capabilities elements (if present) and the 214c8a2e7a2SMordechay Goodstein * Maximum AMPDU Length Exponent Extension field in its HE 215c8a2e7a2SMordechay Goodstein * Capabilities element 216c8a2e7a2SMordechay Goodstein */ 217c8a2e7a2SMordechay Goodstein if (sta->he_cap.has_he) 218c8a2e7a2SMordechay Goodstein agg_size += u8_get_bits(sta->he_cap.he_cap_elem.mac_cap_info[3], 219c8a2e7a2SMordechay Goodstein IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK); 220c8a2e7a2SMordechay Goodstein 221c8a2e7a2SMordechay Goodstein /* Limit to max A-MPDU supported by FW */ 222c8a2e7a2SMordechay Goodstein if (agg_size > (STA_FLG_MAX_AGG_SIZE_4M >> STA_FLG_MAX_AGG_SIZE_SHIFT)) 223c8a2e7a2SMordechay Goodstein agg_size = (STA_FLG_MAX_AGG_SIZE_4M >> 224c8a2e7a2SMordechay Goodstein STA_FLG_MAX_AGG_SIZE_SHIFT); 225c8a2e7a2SMordechay Goodstein 226e705c121SKalle Valo add_sta_cmd.station_flags |= 227e705c121SKalle Valo cpu_to_le32(agg_size << STA_FLG_MAX_AGG_SIZE_SHIFT); 228e705c121SKalle Valo add_sta_cmd.station_flags |= 229e705c121SKalle Valo cpu_to_le32(mpdu_dens << STA_FLG_AGG_MPDU_DENS_SHIFT); 230d94c5a82SGregory Greenman if (mvm_sta->sta_state >= IEEE80211_STA_ASSOC) 23119c52f46SEmmanuel Grumbach add_sta_cmd.assoc_id = cpu_to_le16(sta->aid); 232e705c121SKalle Valo 23365e25482SJohannes Berg if (sta->wme) { 23465e25482SJohannes Berg add_sta_cmd.modify_mask |= STA_MODIFY_UAPSD_ACS; 23565e25482SJohannes Berg 23665e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK) 237c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_BK); 23865e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE) 239c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_BE); 24065e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI) 241c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_VI); 24265e25482SJohannes Berg if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) 243c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= BIT(AC_VO); 244c80eb570SEmmanuel Grumbach add_sta_cmd.uapsd_acs |= add_sta_cmd.uapsd_acs << 4; 245e71ca5eaSEmmanuel Grumbach add_sta_cmd.sp_length = sta->max_sp ? sta->max_sp * 2 : 128; 24665e25482SJohannes Berg } 24765e25482SJohannes Berg 248e705c121SKalle Valo status = ADD_STA_SUCCESS; 249854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 250854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 251e705c121SKalle Valo &add_sta_cmd, &status); 252e705c121SKalle Valo if (ret) 253e705c121SKalle Valo return ret; 254e705c121SKalle Valo 255837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 256e705c121SKalle Valo case ADD_STA_SUCCESS: 257e705c121SKalle Valo IWL_DEBUG_ASSOC(mvm, "ADD_STA PASSED\n"); 258e705c121SKalle Valo break; 259e705c121SKalle Valo default: 260e705c121SKalle Valo ret = -EIO; 261e705c121SKalle Valo IWL_ERR(mvm, "ADD_STA failed\n"); 262e705c121SKalle Valo break; 263e705c121SKalle Valo } 264e705c121SKalle Valo 265e705c121SKalle Valo return ret; 266e705c121SKalle Valo } 267e705c121SKalle Valo 2688cef5344SKees Cook static void iwl_mvm_rx_agg_session_expired(struct timer_list *t) 26910b2b201SSara Sharon { 2708cef5344SKees Cook struct iwl_mvm_baid_data *data = 2718cef5344SKees Cook from_timer(data, t, session_timer); 2728cef5344SKees Cook struct iwl_mvm_baid_data __rcu **rcu_ptr = data->rcu_ptr; 27310b2b201SSara Sharon struct iwl_mvm_baid_data *ba_data; 27410b2b201SSara Sharon struct ieee80211_sta *sta; 27510b2b201SSara Sharon struct iwl_mvm_sta *mvm_sta; 27610b2b201SSara Sharon unsigned long timeout; 27710b2b201SSara Sharon 27810b2b201SSara Sharon rcu_read_lock(); 27910b2b201SSara Sharon 28010b2b201SSara Sharon ba_data = rcu_dereference(*rcu_ptr); 28110b2b201SSara Sharon 28210b2b201SSara Sharon if (WARN_ON(!ba_data)) 28310b2b201SSara Sharon goto unlock; 28410b2b201SSara Sharon 28510b2b201SSara Sharon if (!ba_data->timeout) 28610b2b201SSara Sharon goto unlock; 28710b2b201SSara Sharon 28810b2b201SSara Sharon timeout = ba_data->last_rx + TU_TO_JIFFIES(ba_data->timeout * 2); 28910b2b201SSara Sharon if (time_is_after_jiffies(timeout)) { 29010b2b201SSara Sharon mod_timer(&ba_data->session_timer, timeout); 29110b2b201SSara Sharon goto unlock; 29210b2b201SSara Sharon } 29310b2b201SSara Sharon 29410b2b201SSara Sharon /* Timer expired */ 29510b2b201SSara Sharon sta = rcu_dereference(ba_data->mvm->fw_id_to_mac_id[ba_data->sta_id]); 29661dd8a8aSEmmanuel Grumbach 29761dd8a8aSEmmanuel Grumbach /* 29861dd8a8aSEmmanuel Grumbach * sta should be valid unless the following happens: 29961dd8a8aSEmmanuel Grumbach * The firmware asserts which triggers a reconfig flow, but 30061dd8a8aSEmmanuel Grumbach * the reconfig fails before we set the pointer to sta into 30161dd8a8aSEmmanuel Grumbach * the fw_id_to_mac_id pointer table. Mac80211 can't stop 30261dd8a8aSEmmanuel Grumbach * A-MDPU and hence the timer continues to run. Then, the 30361dd8a8aSEmmanuel Grumbach * timer expires and sta is NULL. 30461dd8a8aSEmmanuel Grumbach */ 30561dd8a8aSEmmanuel Grumbach if (!sta) 30661dd8a8aSEmmanuel Grumbach goto unlock; 30761dd8a8aSEmmanuel Grumbach 30810b2b201SSara Sharon mvm_sta = iwl_mvm_sta_from_mac80211(sta); 30920fc690fSNaftali Goldstein ieee80211_rx_ba_timer_expired(mvm_sta->vif, 31010b2b201SSara Sharon sta->addr, ba_data->tid); 31110b2b201SSara Sharon unlock: 31210b2b201SSara Sharon rcu_read_unlock(); 31310b2b201SSara Sharon } 31410b2b201SSara Sharon 3159794c64fSLiad Kaufman /* Disable aggregations for a bitmap of TIDs for a given station */ 3169794c64fSLiad Kaufman static int iwl_mvm_invalidate_sta_queue(struct iwl_mvm *mvm, int queue, 3179794c64fSLiad Kaufman unsigned long disable_agg_tids, 3189794c64fSLiad Kaufman bool remove_queue) 3199794c64fSLiad Kaufman { 3209794c64fSLiad Kaufman struct iwl_mvm_add_sta_cmd cmd = {}; 3219794c64fSLiad Kaufman struct ieee80211_sta *sta; 3229794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 3239794c64fSLiad Kaufman u32 status; 3249794c64fSLiad Kaufman u8 sta_id; 3259794c64fSLiad Kaufman 326bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 327bb49701bSSara Sharon return -EINVAL; 328bb49701bSSara Sharon 3299794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 3309794c64fSLiad Kaufman 3319794c64fSLiad Kaufman rcu_read_lock(); 3329794c64fSLiad Kaufman 3339794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 3349794c64fSLiad Kaufman 3359794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 3369794c64fSLiad Kaufman rcu_read_unlock(); 3379794c64fSLiad Kaufman return -EINVAL; 3389794c64fSLiad Kaufman } 3399794c64fSLiad Kaufman 3409794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 3419794c64fSLiad Kaufman 3429794c64fSLiad Kaufman mvmsta->tid_disable_agg |= disable_agg_tids; 3439794c64fSLiad Kaufman 3449794c64fSLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 3459794c64fSLiad Kaufman cmd.sta_id = mvmsta->sta_id; 3469794c64fSLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 3479794c64fSLiad Kaufman cmd.modify_mask = STA_MODIFY_QUEUES; 3489794c64fSLiad Kaufman if (disable_agg_tids) 3499794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 3509794c64fSLiad Kaufman if (remove_queue) 3519794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_QUEUE_REMOVAL; 3529794c64fSLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 3539794c64fSLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 3549794c64fSLiad Kaufman 3559794c64fSLiad Kaufman rcu_read_unlock(); 3569794c64fSLiad Kaufman 3579794c64fSLiad Kaufman /* Notify FW of queue removal from the STA queues */ 3589794c64fSLiad Kaufman status = ADD_STA_SUCCESS; 359b2c1bf59SSara Sharon return iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 3609794c64fSLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), 3619794c64fSLiad Kaufman &cmd, &status); 3629794c64fSLiad Kaufman } 3639794c64fSLiad Kaufman 364cfbc6c4cSSara Sharon static int iwl_mvm_disable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 365cfbc6c4cSSara Sharon int queue, u8 tid, u8 flags) 36699448a8cSJohannes Berg { 36799448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 36899448a8cSJohannes Berg .scd_queue = queue, 36999448a8cSJohannes Berg .action = SCD_CFG_DISABLE_QUEUE, 37099448a8cSJohannes Berg }; 37199448a8cSJohannes Berg int ret; 37299448a8cSJohannes Berg 37399448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) { 37499448a8cSJohannes Berg iwl_trans_txq_free(mvm->trans, queue); 37599448a8cSJohannes Berg 37699448a8cSJohannes Berg return 0; 37799448a8cSJohannes Berg } 37899448a8cSJohannes Berg 379f3f240f9SJohannes Berg if (WARN_ON(mvm->queue_info[queue].tid_bitmap == 0)) 38099448a8cSJohannes Berg return 0; 38199448a8cSJohannes Berg 38299448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 38399448a8cSJohannes Berg 3841c14089eSJohannes Berg cmd.action = mvm->queue_info[queue].tid_bitmap ? 38599448a8cSJohannes Berg SCD_CFG_ENABLE_QUEUE : SCD_CFG_DISABLE_QUEUE; 38699448a8cSJohannes Berg if (cmd.action == SCD_CFG_DISABLE_QUEUE) 38799448a8cSJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_FREE; 38899448a8cSJohannes Berg 38999448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 390cfbc6c4cSSara Sharon "Disabling TXQ #%d tids=0x%x\n", 39199448a8cSJohannes Berg queue, 392cfbc6c4cSSara Sharon mvm->queue_info[queue].tid_bitmap); 39399448a8cSJohannes Berg 39499448a8cSJohannes Berg /* If the queue is still enabled - nothing left to do in this func */ 395f3f240f9SJohannes Berg if (cmd.action == SCD_CFG_ENABLE_QUEUE) 39699448a8cSJohannes Berg return 0; 39799448a8cSJohannes Berg 39899448a8cSJohannes Berg cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 39999448a8cSJohannes Berg cmd.tid = mvm->queue_info[queue].txq_tid; 40099448a8cSJohannes Berg 40199448a8cSJohannes Berg /* Make sure queue info is correct even though we overwrite it */ 402cfbc6c4cSSara Sharon WARN(mvm->queue_info[queue].tid_bitmap, 403cfbc6c4cSSara Sharon "TXQ #%d info out-of-sync - tids=0x%x\n", 404cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 40599448a8cSJohannes Berg 40699448a8cSJohannes Berg /* If we are here - the queue is freed and we can zero out these vals */ 40799448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap = 0; 408cfbc6c4cSSara Sharon 409cfbc6c4cSSara Sharon if (sta) { 410cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 411cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 412cfbc6c4cSSara Sharon 413cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 414cfbc6c4cSSara Sharon } 41599448a8cSJohannes Berg 41699448a8cSJohannes Berg /* Regardless if this is a reserved TXQ for a STA - mark it as false */ 41799448a8cSJohannes Berg mvm->queue_info[queue].reserved = false; 41899448a8cSJohannes Berg 41999448a8cSJohannes Berg iwl_trans_txq_disable(mvm->trans, queue, false); 42099448a8cSJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, flags, 42199448a8cSJohannes Berg sizeof(struct iwl_scd_txq_cfg_cmd), &cmd); 42299448a8cSJohannes Berg 42399448a8cSJohannes Berg if (ret) 42499448a8cSJohannes Berg IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n", 42599448a8cSJohannes Berg queue, ret); 42699448a8cSJohannes Berg return ret; 42799448a8cSJohannes Berg } 42899448a8cSJohannes Berg 42942db09c1SLiad Kaufman static int iwl_mvm_get_queue_agg_tids(struct iwl_mvm *mvm, int queue) 43042db09c1SLiad Kaufman { 43142db09c1SLiad Kaufman struct ieee80211_sta *sta; 43242db09c1SLiad Kaufman struct iwl_mvm_sta *mvmsta; 43342db09c1SLiad Kaufman unsigned long tid_bitmap; 43442db09c1SLiad Kaufman unsigned long agg_tids = 0; 435806911daSSharon Dvir u8 sta_id; 43642db09c1SLiad Kaufman int tid; 43742db09c1SLiad Kaufman 43842db09c1SLiad Kaufman lockdep_assert_held(&mvm->mutex); 43942db09c1SLiad Kaufman 440bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 441bb49701bSSara Sharon return -EINVAL; 442bb49701bSSara Sharon 44342db09c1SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 44442db09c1SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 44542db09c1SLiad Kaufman 44642db09c1SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 44742db09c1SLiad Kaufman lockdep_is_held(&mvm->mutex)); 44842db09c1SLiad Kaufman 44942db09c1SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 45042db09c1SLiad Kaufman return -EINVAL; 45142db09c1SLiad Kaufman 45242db09c1SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 45342db09c1SLiad Kaufman 45442db09c1SLiad Kaufman spin_lock_bh(&mvmsta->lock); 45542db09c1SLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 45642db09c1SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 45742db09c1SLiad Kaufman agg_tids |= BIT(tid); 45842db09c1SLiad Kaufman } 45942db09c1SLiad Kaufman spin_unlock_bh(&mvmsta->lock); 46042db09c1SLiad Kaufman 46142db09c1SLiad Kaufman return agg_tids; 46242db09c1SLiad Kaufman } 46342db09c1SLiad Kaufman 4649794c64fSLiad Kaufman /* 4659794c64fSLiad Kaufman * Remove a queue from a station's resources. 4669794c64fSLiad Kaufman * Note that this only marks as free. It DOESN'T delete a BA agreement, and 4679794c64fSLiad Kaufman * doesn't disable the queue 4689794c64fSLiad Kaufman */ 4699794c64fSLiad Kaufman static int iwl_mvm_remove_sta_queue_marking(struct iwl_mvm *mvm, int queue) 4709794c64fSLiad Kaufman { 4719794c64fSLiad Kaufman struct ieee80211_sta *sta; 4729794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta; 4739794c64fSLiad Kaufman unsigned long tid_bitmap; 4749794c64fSLiad Kaufman unsigned long disable_agg_tids = 0; 4759794c64fSLiad Kaufman u8 sta_id; 4769794c64fSLiad Kaufman int tid; 4779794c64fSLiad Kaufman 4789794c64fSLiad Kaufman lockdep_assert_held(&mvm->mutex); 4799794c64fSLiad Kaufman 480bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 481bb49701bSSara Sharon return -EINVAL; 482bb49701bSSara Sharon 4839794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 4849794c64fSLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 4859794c64fSLiad Kaufman 4869794c64fSLiad Kaufman rcu_read_lock(); 4879794c64fSLiad Kaufman 4889794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 4899794c64fSLiad Kaufman 4909794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { 4919794c64fSLiad Kaufman rcu_read_unlock(); 4929794c64fSLiad Kaufman return 0; 4939794c64fSLiad Kaufman } 4949794c64fSLiad Kaufman 4959794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 4969794c64fSLiad Kaufman 4979794c64fSLiad Kaufman spin_lock_bh(&mvmsta->lock); 49842db09c1SLiad Kaufman /* Unmap MAC queues and TIDs from this queue */ 4999794c64fSLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 500cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 501cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 502cfbc6c4cSSara Sharon 5039794c64fSLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) 5049794c64fSLiad Kaufman disable_agg_tids |= BIT(tid); 5056862fceeSSara Sharon mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 506cfbc6c4cSSara Sharon 507cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 5089794c64fSLiad Kaufman } 5099794c64fSLiad Kaufman 51042db09c1SLiad Kaufman mvmsta->tfd_queue_msk &= ~BIT(queue); /* Don't use this queue anymore */ 5119794c64fSLiad Kaufman spin_unlock_bh(&mvmsta->lock); 5129794c64fSLiad Kaufman 5139794c64fSLiad Kaufman rcu_read_unlock(); 5149794c64fSLiad Kaufman 51506bc6f6eSJohannes Berg /* 51606bc6f6eSJohannes Berg * The TX path may have been using this TXQ_ID from the tid_data, 51706bc6f6eSJohannes Berg * so make sure it's no longer running so that we can safely reuse 51806bc6f6eSJohannes Berg * this TXQ later. We've set all the TIDs to IWL_MVM_INVALID_QUEUE 51906bc6f6eSJohannes Berg * above, but nothing guarantees we've stopped using them. Thus, 52006bc6f6eSJohannes Berg * without this, we could get to iwl_mvm_disable_txq() and remove 52106bc6f6eSJohannes Berg * the queue while still sending frames to it. 52206bc6f6eSJohannes Berg */ 52306bc6f6eSJohannes Berg synchronize_net(); 52406bc6f6eSJohannes Berg 5259794c64fSLiad Kaufman return disable_agg_tids; 5269794c64fSLiad Kaufman } 5279794c64fSLiad Kaufman 52801796ff2SSara Sharon static int iwl_mvm_free_inactive_queue(struct iwl_mvm *mvm, int queue, 529cfbc6c4cSSara Sharon struct ieee80211_sta *old_sta, 530724fe771SJohannes Berg u8 new_sta_id) 53101796ff2SSara Sharon { 53201796ff2SSara Sharon struct iwl_mvm_sta *mvmsta; 533cfbc6c4cSSara Sharon u8 sta_id, tid; 53401796ff2SSara Sharon unsigned long disable_agg_tids = 0; 535724fe771SJohannes Berg bool same_sta; 53601796ff2SSara Sharon int ret; 53701796ff2SSara Sharon 53801796ff2SSara Sharon lockdep_assert_held(&mvm->mutex); 53901796ff2SSara Sharon 540bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 541bb49701bSSara Sharon return -EINVAL; 542bb49701bSSara Sharon 54301796ff2SSara Sharon sta_id = mvm->queue_info[queue].ra_sta_id; 54401796ff2SSara Sharon tid = mvm->queue_info[queue].txq_tid; 54501796ff2SSara Sharon 546724fe771SJohannes Berg same_sta = sta_id == new_sta_id; 547724fe771SJohannes Berg 54801796ff2SSara Sharon mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 549e3df1e4bSSharon Dvir if (WARN_ON(!mvmsta)) 550e3df1e4bSSharon Dvir return -EINVAL; 55101796ff2SSara Sharon 55201796ff2SSara Sharon disable_agg_tids = iwl_mvm_remove_sta_queue_marking(mvm, queue); 55301796ff2SSara Sharon /* Disable the queue */ 55401796ff2SSara Sharon if (disable_agg_tids) 55501796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 55601796ff2SSara Sharon disable_agg_tids, false); 55701796ff2SSara Sharon 558cfbc6c4cSSara Sharon ret = iwl_mvm_disable_txq(mvm, old_sta, queue, tid, 0); 55901796ff2SSara Sharon if (ret) { 56001796ff2SSara Sharon IWL_ERR(mvm, 56101796ff2SSara Sharon "Failed to free inactive queue %d (ret=%d)\n", 56201796ff2SSara Sharon queue, ret); 56301796ff2SSara Sharon 56401796ff2SSara Sharon return ret; 56501796ff2SSara Sharon } 56601796ff2SSara Sharon 56701796ff2SSara Sharon /* If TXQ is allocated to another STA, update removal in FW */ 56801796ff2SSara Sharon if (!same_sta) 56901796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 0, true); 57001796ff2SSara Sharon 57101796ff2SSara Sharon return 0; 57201796ff2SSara Sharon } 57301796ff2SSara Sharon 57442db09c1SLiad Kaufman static int iwl_mvm_get_shared_queue(struct iwl_mvm *mvm, 57542db09c1SLiad Kaufman unsigned long tfd_queue_mask, u8 ac) 57642db09c1SLiad Kaufman { 57742db09c1SLiad Kaufman int queue = 0; 57842db09c1SLiad Kaufman u8 ac_to_queue[IEEE80211_NUM_ACS]; 57942db09c1SLiad Kaufman int i; 58042db09c1SLiad Kaufman 58190d2d94cSJohannes Berg /* 58290d2d94cSJohannes Berg * This protects us against grabbing a queue that's being reconfigured 58390d2d94cSJohannes Berg * by the inactivity checker. 58490d2d94cSJohannes Berg */ 58590d2d94cSJohannes Berg lockdep_assert_held(&mvm->mutex); 58690d2d94cSJohannes Berg 587bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 588bb49701bSSara Sharon return -EINVAL; 58942db09c1SLiad Kaufman 59042db09c1SLiad Kaufman memset(&ac_to_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(ac_to_queue)); 59142db09c1SLiad Kaufman 59242db09c1SLiad Kaufman /* See what ACs the existing queues for this STA have */ 59342db09c1SLiad Kaufman for_each_set_bit(i, &tfd_queue_mask, IWL_MVM_DQA_MAX_DATA_QUEUE) { 59442db09c1SLiad Kaufman /* Only DATA queues can be shared */ 59542db09c1SLiad Kaufman if (i < IWL_MVM_DQA_MIN_DATA_QUEUE && 59642db09c1SLiad Kaufman i != IWL_MVM_DQA_BSS_CLIENT_QUEUE) 59742db09c1SLiad Kaufman continue; 59842db09c1SLiad Kaufman 59942db09c1SLiad Kaufman ac_to_queue[mvm->queue_info[i].mac80211_ac] = i; 60042db09c1SLiad Kaufman } 60142db09c1SLiad Kaufman 60242db09c1SLiad Kaufman /* 60342db09c1SLiad Kaufman * The queue to share is chosen only from DATA queues as follows (in 60442db09c1SLiad Kaufman * descending priority): 60542db09c1SLiad Kaufman * 1. An AC_BE queue 60642db09c1SLiad Kaufman * 2. Same AC queue 60742db09c1SLiad Kaufman * 3. Highest AC queue that is lower than new AC 60842db09c1SLiad Kaufman * 4. Any existing AC (there always is at least 1 DATA queue) 60942db09c1SLiad Kaufman */ 61042db09c1SLiad Kaufman 61142db09c1SLiad Kaufman /* Priority 1: An AC_BE queue */ 61242db09c1SLiad Kaufman if (ac_to_queue[IEEE80211_AC_BE] != IEEE80211_INVAL_HW_QUEUE) 61342db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BE]; 61442db09c1SLiad Kaufman /* Priority 2: Same AC queue */ 61542db09c1SLiad Kaufman else if (ac_to_queue[ac] != IEEE80211_INVAL_HW_QUEUE) 61642db09c1SLiad Kaufman queue = ac_to_queue[ac]; 61742db09c1SLiad Kaufman /* Priority 3a: If new AC is VO and VI exists - use VI */ 61842db09c1SLiad Kaufman else if (ac == IEEE80211_AC_VO && 61942db09c1SLiad Kaufman ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 62042db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 62142db09c1SLiad Kaufman /* Priority 3b: No BE so only AC less than the new one is BK */ 62242db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_BK] != IEEE80211_INVAL_HW_QUEUE) 62342db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BK]; 62442db09c1SLiad Kaufman /* Priority 4a: No BE nor BK - use VI if exists */ 62542db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE) 62642db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI]; 62742db09c1SLiad Kaufman /* Priority 4b: No BE, BK nor VI - use VO if exists */ 62842db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VO] != IEEE80211_INVAL_HW_QUEUE) 62942db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VO]; 63042db09c1SLiad Kaufman 63142db09c1SLiad Kaufman /* Make sure queue found (or not) is legal */ 6329f9af3d7SLiad Kaufman if (!iwl_mvm_is_dqa_data_queue(mvm, queue) && 6339f9af3d7SLiad Kaufman !iwl_mvm_is_dqa_mgmt_queue(mvm, queue) && 6349f9af3d7SLiad Kaufman (queue != IWL_MVM_DQA_BSS_CLIENT_QUEUE)) { 63542db09c1SLiad Kaufman IWL_ERR(mvm, "No DATA queues available to share\n"); 6369f9af3d7SLiad Kaufman return -ENOSPC; 6379f9af3d7SLiad Kaufman } 6389f9af3d7SLiad Kaufman 63942db09c1SLiad Kaufman return queue; 64042db09c1SLiad Kaufman } 64142db09c1SLiad Kaufman 64258f2cc57SLiad Kaufman /* 6439f9af3d7SLiad Kaufman * If a given queue has a higher AC than the TID stream that is being compared 6449f9af3d7SLiad Kaufman * to, the queue needs to be redirected to the lower AC. This function does that 64558f2cc57SLiad Kaufman * in such a case, otherwise - if no redirection required - it does nothing, 64658f2cc57SLiad Kaufman * unless the %force param is true. 64758f2cc57SLiad Kaufman */ 648cfbc6c4cSSara Sharon static int iwl_mvm_redirect_queue(struct iwl_mvm *mvm, int queue, int tid, 64958f2cc57SLiad Kaufman int ac, int ssn, unsigned int wdg_timeout, 650cfbc6c4cSSara Sharon bool force, struct iwl_mvm_txq *txq) 65158f2cc57SLiad Kaufman { 65258f2cc57SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 65358f2cc57SLiad Kaufman .scd_queue = queue, 654f7c692deSLiad Kaufman .action = SCD_CFG_DISABLE_QUEUE, 65558f2cc57SLiad Kaufman }; 65658f2cc57SLiad Kaufman bool shared_queue; 65758f2cc57SLiad Kaufman int ret; 65858f2cc57SLiad Kaufman 659bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 660bb49701bSSara Sharon return -EINVAL; 661bb49701bSSara Sharon 66258f2cc57SLiad Kaufman /* 66358f2cc57SLiad Kaufman * If the AC is lower than current one - FIFO needs to be redirected to 66458f2cc57SLiad Kaufman * the lowest one of the streams in the queue. Check if this is needed 66558f2cc57SLiad Kaufman * here. 66658f2cc57SLiad Kaufman * Notice that the enum ieee80211_ac_numbers is "flipped", so BK is with 66758f2cc57SLiad Kaufman * value 3 and VO with value 0, so to check if ac X is lower than ac Y 66858f2cc57SLiad Kaufman * we need to check if the numerical value of X is LARGER than of Y. 66958f2cc57SLiad Kaufman */ 67058f2cc57SLiad Kaufman if (ac <= mvm->queue_info[queue].mac80211_ac && !force) { 67158f2cc57SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 67258f2cc57SLiad Kaufman "No redirection needed on TXQ #%d\n", 67358f2cc57SLiad Kaufman queue); 67458f2cc57SLiad Kaufman return 0; 67558f2cc57SLiad Kaufman } 67658f2cc57SLiad Kaufman 67758f2cc57SLiad Kaufman cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 67858f2cc57SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[mvm->queue_info[queue].mac80211_ac]; 679edbe961cSLiad Kaufman cmd.tid = mvm->queue_info[queue].txq_tid; 6801c14089eSJohannes Berg shared_queue = hweight16(mvm->queue_info[queue].tid_bitmap) > 1; 68158f2cc57SLiad Kaufman 6829f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Redirecting TXQ #%d to FIFO #%d\n", 68358f2cc57SLiad Kaufman queue, iwl_mvm_ac_to_tx_fifo[ac]); 68458f2cc57SLiad Kaufman 685cfbc6c4cSSara Sharon /* Stop the queue and wait for it to empty */ 686cfbc6c4cSSara Sharon txq->stopped = true; 687cfbc6c4cSSara Sharon 688a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(queue)); 68958f2cc57SLiad Kaufman if (ret) { 69058f2cc57SLiad Kaufman IWL_ERR(mvm, "Error draining queue %d before reconfig\n", 69158f2cc57SLiad Kaufman queue); 69258f2cc57SLiad Kaufman ret = -EIO; 69358f2cc57SLiad Kaufman goto out; 69458f2cc57SLiad Kaufman } 69558f2cc57SLiad Kaufman 69658f2cc57SLiad Kaufman /* Before redirecting the queue we need to de-activate it */ 69758f2cc57SLiad Kaufman iwl_trans_txq_disable(mvm->trans, queue, false); 69858f2cc57SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 69958f2cc57SLiad Kaufman if (ret) 70058f2cc57SLiad Kaufman IWL_ERR(mvm, "Failed SCD disable TXQ %d (ret=%d)\n", queue, 70158f2cc57SLiad Kaufman ret); 70258f2cc57SLiad Kaufman 70358f2cc57SLiad Kaufman /* Make sure the SCD wrptr is correctly set before reconfiguring */ 704ca3b9c6bSSara Sharon iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, wdg_timeout); 70558f2cc57SLiad Kaufman 706edbe961cSLiad Kaufman /* Update the TID "owner" of the queue */ 707edbe961cSLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 708edbe961cSLiad Kaufman 70958f2cc57SLiad Kaufman /* TODO: Work-around SCD bug when moving back by multiples of 0x40 */ 71058f2cc57SLiad Kaufman 71158f2cc57SLiad Kaufman /* Redirect to lower AC */ 71258f2cc57SLiad Kaufman iwl_mvm_reconfig_scd(mvm, queue, iwl_mvm_ac_to_tx_fifo[ac], 7130ec9257bSSara Sharon cmd.sta_id, tid, IWL_FRAME_LIMIT, ssn); 71458f2cc57SLiad Kaufman 71558f2cc57SLiad Kaufman /* Update AC marking of the queue */ 71658f2cc57SLiad Kaufman mvm->queue_info[queue].mac80211_ac = ac; 71758f2cc57SLiad Kaufman 71858f2cc57SLiad Kaufman /* 71958f2cc57SLiad Kaufman * Mark queue as shared in transport if shared 72058f2cc57SLiad Kaufman * Note this has to be done after queue enablement because enablement 72158f2cc57SLiad Kaufman * can also set this value, and there is no indication there to shared 72258f2cc57SLiad Kaufman * queues 72358f2cc57SLiad Kaufman */ 72458f2cc57SLiad Kaufman if (shared_queue) 72558f2cc57SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 72658f2cc57SLiad Kaufman 72758f2cc57SLiad Kaufman out: 728cfbc6c4cSSara Sharon /* Continue using the queue */ 729cfbc6c4cSSara Sharon txq->stopped = false; 73058f2cc57SLiad Kaufman 73158f2cc57SLiad Kaufman return ret; 73258f2cc57SLiad Kaufman } 73358f2cc57SLiad Kaufman 73499448a8cSJohannes Berg static int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 sta_id, 73599448a8cSJohannes Berg u8 minq, u8 maxq) 73699448a8cSJohannes Berg { 73799448a8cSJohannes Berg int i; 73899448a8cSJohannes Berg 739f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 74099448a8cSJohannes Berg 741e5b72e3bSJohannes Berg if (WARN(maxq >= mvm->trans->trans_cfg->base_params->num_of_queues, 742e5b72e3bSJohannes Berg "max queue %d >= num_of_queues (%d)", maxq, 743e5b72e3bSJohannes Berg mvm->trans->trans_cfg->base_params->num_of_queues)) 744e5b72e3bSJohannes Berg maxq = mvm->trans->trans_cfg->base_params->num_of_queues - 1; 745e5b72e3bSJohannes Berg 74699448a8cSJohannes Berg /* This should not be hit with new TX path */ 74799448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 74899448a8cSJohannes Berg return -ENOSPC; 74999448a8cSJohannes Berg 75099448a8cSJohannes Berg /* Start by looking for a free queue */ 75199448a8cSJohannes Berg for (i = minq; i <= maxq; i++) 7521c14089eSJohannes Berg if (mvm->queue_info[i].tid_bitmap == 0 && 75399448a8cSJohannes Berg mvm->queue_info[i].status == IWL_MVM_QUEUE_FREE) 75499448a8cSJohannes Berg return i; 75599448a8cSJohannes Berg 75699448a8cSJohannes Berg return -ENOSPC; 75799448a8cSJohannes Berg } 75899448a8cSJohannes Berg 759cfbc6c4cSSara Sharon static int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm, 76099448a8cSJohannes Berg u8 sta_id, u8 tid, unsigned int timeout) 76199448a8cSJohannes Berg { 7629a16ee0cSShaul Triebitz int queue, size = max_t(u32, IWL_DEFAULT_QUEUE_SIZE, 7639a16ee0cSShaul Triebitz mvm->trans->cfg->min_256_ba_txq_size); 76499448a8cSJohannes Berg 76599448a8cSJohannes Berg if (tid == IWL_MAX_TID_COUNT) { 76699448a8cSJohannes Berg tid = IWL_MGMT_TID; 767ff911dcaSShaul Triebitz size = max_t(u32, IWL_MGMT_QUEUE_SIZE, 768ff911dcaSShaul Triebitz mvm->trans->cfg->min_txq_size); 76999448a8cSJohannes Berg } 77099448a8cSJohannes Berg 77192f78d4bSJohannes Berg do { 77292f78d4bSJohannes Berg __le16 enable = cpu_to_le16(TX_QUEUE_CFG_ENABLE_QUEUE); 77392f78d4bSJohannes Berg 77492f78d4bSJohannes Berg queue = iwl_trans_txq_alloc(mvm->trans, enable, 77592f78d4bSJohannes Berg sta_id, tid, SCD_QUEUE_CFG, 77692f78d4bSJohannes Berg size, timeout); 77792f78d4bSJohannes Berg 77892f78d4bSJohannes Berg if (queue < 0) 77999448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 78092f78d4bSJohannes Berg "Failed allocating TXQ of size %d for sta %d tid %d, ret: %d\n", 78192f78d4bSJohannes Berg size, sta_id, tid, queue); 78292f78d4bSJohannes Berg size /= 2; 78392f78d4bSJohannes Berg } while (queue < 0 && size >= 16); 78492f78d4bSJohannes Berg 78592f78d4bSJohannes Berg if (queue < 0) 78699448a8cSJohannes Berg return queue; 78799448a8cSJohannes Berg 78899448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Enabling TXQ #%d for sta %d tid %d\n", 78999448a8cSJohannes Berg queue, sta_id, tid); 79099448a8cSJohannes Berg 79199448a8cSJohannes Berg return queue; 79299448a8cSJohannes Berg } 79399448a8cSJohannes Berg 794310181ecSSara Sharon static int iwl_mvm_sta_alloc_queue_tvqm(struct iwl_mvm *mvm, 795310181ecSSara Sharon struct ieee80211_sta *sta, u8 ac, 796310181ecSSara Sharon int tid) 797310181ecSSara Sharon { 798310181ecSSara Sharon struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 799cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 800cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 801310181ecSSara Sharon unsigned int wdg_timeout = 802310181ecSSara Sharon iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 803310181ecSSara Sharon int queue = -1; 804310181ecSSara Sharon 805310181ecSSara Sharon lockdep_assert_held(&mvm->mutex); 806310181ecSSara Sharon 807310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 808310181ecSSara Sharon "Allocating queue for sta %d on tid %d\n", 809310181ecSSara Sharon mvmsta->sta_id, tid); 810cfbc6c4cSSara Sharon queue = iwl_mvm_tvqm_enable_txq(mvm, mvmsta->sta_id, tid, wdg_timeout); 811310181ecSSara Sharon if (queue < 0) 812310181ecSSara Sharon return queue; 813310181ecSSara Sharon 814cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 815cfbc6c4cSSara Sharon mvm->tvqm_info[queue].txq_tid = tid; 816cfbc6c4cSSara Sharon mvm->tvqm_info[queue].sta_id = mvmsta->sta_id; 817cfbc6c4cSSara Sharon 818310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, "Allocated queue is %d\n", queue); 819310181ecSSara Sharon 820310181ecSSara Sharon spin_lock_bh(&mvmsta->lock); 821310181ecSSara Sharon mvmsta->tid_data[tid].txq_id = queue; 822310181ecSSara Sharon spin_unlock_bh(&mvmsta->lock); 823310181ecSSara Sharon 824310181ecSSara Sharon return 0; 825310181ecSSara Sharon } 826310181ecSSara Sharon 827cfbc6c4cSSara Sharon static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, 828cfbc6c4cSSara Sharon struct ieee80211_sta *sta, 829cfbc6c4cSSara Sharon int queue, u8 sta_id, u8 tid) 83099448a8cSJohannes Berg { 83199448a8cSJohannes Berg bool enable_queue = true; 83299448a8cSJohannes Berg 83399448a8cSJohannes Berg /* Make sure this TID isn't already enabled */ 83499448a8cSJohannes Berg if (mvm->queue_info[queue].tid_bitmap & BIT(tid)) { 83599448a8cSJohannes Berg IWL_ERR(mvm, "Trying to enable TXQ %d with existing TID %d\n", 83699448a8cSJohannes Berg queue, tid); 83799448a8cSJohannes Berg return false; 83899448a8cSJohannes Berg } 83999448a8cSJohannes Berg 84099448a8cSJohannes Berg /* Update mappings and refcounts */ 8411c14089eSJohannes Berg if (mvm->queue_info[queue].tid_bitmap) 84299448a8cSJohannes Berg enable_queue = false; 84399448a8cSJohannes Berg 84499448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap |= BIT(tid); 84599448a8cSJohannes Berg mvm->queue_info[queue].ra_sta_id = sta_id; 84699448a8cSJohannes Berg 84799448a8cSJohannes Berg if (enable_queue) { 84899448a8cSJohannes Berg if (tid != IWL_MAX_TID_COUNT) 84999448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = 85099448a8cSJohannes Berg tid_to_mac80211_ac[tid]; 85199448a8cSJohannes Berg else 85299448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = IEEE80211_AC_VO; 85399448a8cSJohannes Berg 85499448a8cSJohannes Berg mvm->queue_info[queue].txq_tid = tid; 85599448a8cSJohannes Berg } 85699448a8cSJohannes Berg 857cfbc6c4cSSara Sharon if (sta) { 858cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 859cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid); 860cfbc6c4cSSara Sharon 861cfbc6c4cSSara Sharon mvmtxq->txq_id = queue; 862cfbc6c4cSSara Sharon } 863cfbc6c4cSSara Sharon 86499448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 865cfbc6c4cSSara Sharon "Enabling TXQ #%d tids=0x%x\n", 866cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap); 86799448a8cSJohannes Berg 86899448a8cSJohannes Berg return enable_queue; 86999448a8cSJohannes Berg } 87099448a8cSJohannes Berg 871cfbc6c4cSSara Sharon static bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 872cfbc6c4cSSara Sharon int queue, u16 ssn, 87399448a8cSJohannes Berg const struct iwl_trans_txq_scd_cfg *cfg, 87499448a8cSJohannes Berg unsigned int wdg_timeout) 87599448a8cSJohannes Berg { 87699448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = { 87799448a8cSJohannes Berg .scd_queue = queue, 87899448a8cSJohannes Berg .action = SCD_CFG_ENABLE_QUEUE, 87999448a8cSJohannes Berg .window = cfg->frame_limit, 88099448a8cSJohannes Berg .sta_id = cfg->sta_id, 88199448a8cSJohannes Berg .ssn = cpu_to_le16(ssn), 88299448a8cSJohannes Berg .tx_fifo = cfg->fifo, 88399448a8cSJohannes Berg .aggregate = cfg->aggregate, 88499448a8cSJohannes Berg .tid = cfg->tid, 88599448a8cSJohannes Berg }; 88699448a8cSJohannes Berg bool inc_ssn; 88799448a8cSJohannes Berg 88899448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 88999448a8cSJohannes Berg return false; 89099448a8cSJohannes Berg 89199448a8cSJohannes Berg /* Send the enabling command if we need to */ 892cfbc6c4cSSara Sharon if (!iwl_mvm_update_txq_mapping(mvm, sta, queue, cfg->sta_id, cfg->tid)) 89399448a8cSJohannes Berg return false; 89499448a8cSJohannes Berg 89599448a8cSJohannes Berg inc_ssn = iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, 89699448a8cSJohannes Berg NULL, wdg_timeout); 89799448a8cSJohannes Berg if (inc_ssn) 89899448a8cSJohannes Berg le16_add_cpu(&cmd.ssn, 1); 89999448a8cSJohannes Berg 90099448a8cSJohannes Berg WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd), 90199448a8cSJohannes Berg "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo); 90299448a8cSJohannes Berg 90399448a8cSJohannes Berg return inc_ssn; 90499448a8cSJohannes Berg } 90599448a8cSJohannes Berg 906b3a87f11SJohannes Berg static void iwl_mvm_change_queue_tid(struct iwl_mvm *mvm, int queue) 90719aefa45SLiad Kaufman { 90819aefa45SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = { 90919aefa45SLiad Kaufman .scd_queue = queue, 91019aefa45SLiad Kaufman .action = SCD_CFG_UPDATE_QUEUE_TID, 91119aefa45SLiad Kaufman }; 91219aefa45SLiad Kaufman int tid; 91319aefa45SLiad Kaufman unsigned long tid_bitmap; 91419aefa45SLiad Kaufman int ret; 91519aefa45SLiad Kaufman 91619aefa45SLiad Kaufman lockdep_assert_held(&mvm->mutex); 91719aefa45SLiad Kaufman 918bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 919bb49701bSSara Sharon return; 920bb49701bSSara Sharon 92119aefa45SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 92219aefa45SLiad Kaufman 92319aefa45SLiad Kaufman if (WARN(!tid_bitmap, "TXQ %d has no tids assigned to it\n", queue)) 92419aefa45SLiad Kaufman return; 92519aefa45SLiad Kaufman 92619aefa45SLiad Kaufman /* Find any TID for queue */ 92719aefa45SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 92819aefa45SLiad Kaufman cmd.tid = tid; 92919aefa45SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 93019aefa45SLiad Kaufman 93119aefa45SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 932341ca402SLiad Kaufman if (ret) { 93319aefa45SLiad Kaufman IWL_ERR(mvm, "Failed to update owner of TXQ %d (ret=%d)\n", 93419aefa45SLiad Kaufman queue, ret); 935341ca402SLiad Kaufman return; 936341ca402SLiad Kaufman } 937341ca402SLiad Kaufman 938341ca402SLiad Kaufman mvm->queue_info[queue].txq_tid = tid; 93919aefa45SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Changed TXQ %d ownership to tid %d\n", 94019aefa45SLiad Kaufman queue, tid); 94119aefa45SLiad Kaufman } 94219aefa45SLiad Kaufman 9439f9af3d7SLiad Kaufman static void iwl_mvm_unshare_queue(struct iwl_mvm *mvm, int queue) 9449f9af3d7SLiad Kaufman { 9459f9af3d7SLiad Kaufman struct ieee80211_sta *sta; 9469f9af3d7SLiad Kaufman struct iwl_mvm_sta *mvmsta; 947806911daSSharon Dvir u8 sta_id; 9489f9af3d7SLiad Kaufman int tid = -1; 9499f9af3d7SLiad Kaufman unsigned long tid_bitmap; 9509f9af3d7SLiad Kaufman unsigned int wdg_timeout; 9519f9af3d7SLiad Kaufman int ssn; 9529f9af3d7SLiad Kaufman int ret = true; 9539f9af3d7SLiad Kaufman 954bb49701bSSara Sharon /* queue sharing is disabled on new TX path */ 955bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 956bb49701bSSara Sharon return; 957bb49701bSSara Sharon 9589f9af3d7SLiad Kaufman lockdep_assert_held(&mvm->mutex); 9599f9af3d7SLiad Kaufman 9609f9af3d7SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id; 9619f9af3d7SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap; 9629f9af3d7SLiad Kaufman 9639f9af3d7SLiad Kaufman /* Find TID for queue, and make sure it is the only one on the queue */ 9649f9af3d7SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1); 9659f9af3d7SLiad Kaufman if (tid_bitmap != BIT(tid)) { 9669f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to unshare q %d, active tids=0x%lx\n", 9679f9af3d7SLiad Kaufman queue, tid_bitmap); 9689f9af3d7SLiad Kaufman return; 9699f9af3d7SLiad Kaufman } 9709f9af3d7SLiad Kaufman 9719f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Unsharing TXQ %d, keeping tid %d\n", queue, 9729f9af3d7SLiad Kaufman tid); 9739f9af3d7SLiad Kaufman 9749f9af3d7SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 9759f9af3d7SLiad Kaufman lockdep_is_held(&mvm->mutex)); 9769f9af3d7SLiad Kaufman 9779f9af3d7SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 9789f9af3d7SLiad Kaufman return; 9799f9af3d7SLiad Kaufman 9809f9af3d7SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta); 9819f9af3d7SLiad Kaufman wdg_timeout = iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 9829f9af3d7SLiad Kaufman 9839f9af3d7SLiad Kaufman ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 9849f9af3d7SLiad Kaufman 985cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, 9869f9af3d7SLiad Kaufman tid_to_mac80211_ac[tid], ssn, 987cfbc6c4cSSara Sharon wdg_timeout, true, 988cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 9899f9af3d7SLiad Kaufman if (ret) { 9909f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to redirect TXQ %d\n", queue); 9919f9af3d7SLiad Kaufman return; 9929f9af3d7SLiad Kaufman } 9939f9af3d7SLiad Kaufman 9949f9af3d7SLiad Kaufman /* If aggs should be turned back on - do it */ 9959f9af3d7SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) { 9969cd70e80SEmmanuel Grumbach struct iwl_mvm_add_sta_cmd cmd = {0}; 9979f9af3d7SLiad Kaufman 9989f9af3d7SLiad Kaufman mvmsta->tid_disable_agg &= ~BIT(tid); 9999f9af3d7SLiad Kaufman 10009f9af3d7SLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 10019f9af3d7SLiad Kaufman cmd.sta_id = mvmsta->sta_id; 10029f9af3d7SLiad Kaufman cmd.add_modify = STA_MODE_MODIFY; 10039f9af3d7SLiad Kaufman cmd.modify_mask = STA_MODIFY_TID_DISABLE_TX; 10049f9af3d7SLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk); 10059f9af3d7SLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg); 10069f9af3d7SLiad Kaufman 10079f9af3d7SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 10089f9af3d7SLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), &cmd); 10099f9af3d7SLiad Kaufman if (!ret) { 10109f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 10119f9af3d7SLiad Kaufman "TXQ #%d is now aggregated again\n", 10129f9af3d7SLiad Kaufman queue); 10139f9af3d7SLiad Kaufman 10149f9af3d7SLiad Kaufman /* Mark queue intenally as aggregating again */ 10159f9af3d7SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, false); 10169f9af3d7SLiad Kaufman } 10179f9af3d7SLiad Kaufman } 10189f9af3d7SLiad Kaufman 10199f9af3d7SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 10209f9af3d7SLiad Kaufman } 10219f9af3d7SLiad Kaufman 102299448a8cSJohannes Berg /* 102399448a8cSJohannes Berg * Remove inactive TIDs of a given queue. 102499448a8cSJohannes Berg * If all queue TIDs are inactive - mark the queue as inactive 102599448a8cSJohannes Berg * If only some the queue TIDs are inactive - unmap them from the queue 1026724fe771SJohannes Berg * 1027724fe771SJohannes Berg * Returns %true if all TIDs were removed and the queue could be reused. 102899448a8cSJohannes Berg */ 1029724fe771SJohannes Berg static bool iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm, 103099448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta, int queue, 103190d2d94cSJohannes Berg unsigned long tid_bitmap, 1032b3a87f11SJohannes Berg unsigned long *unshare_queues, 1033b3a87f11SJohannes Berg unsigned long *changetid_queues) 103499448a8cSJohannes Berg { 103599448a8cSJohannes Berg int tid; 103699448a8cSJohannes Berg 103799448a8cSJohannes Berg lockdep_assert_held(&mvmsta->lock); 1038f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 103999448a8cSJohannes Berg 104099448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1041724fe771SJohannes Berg return false; 104299448a8cSJohannes Berg 104399448a8cSJohannes Berg /* Go over all non-active TIDs, incl. IWL_MAX_TID_COUNT (for mgmt) */ 104499448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 104599448a8cSJohannes Berg /* If some TFDs are still queued - don't mark TID as inactive */ 104699448a8cSJohannes Berg if (iwl_mvm_tid_queued(mvm, &mvmsta->tid_data[tid])) 104799448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 104899448a8cSJohannes Berg 104999448a8cSJohannes Berg /* Don't mark as inactive any TID that has an active BA */ 105099448a8cSJohannes Berg if (mvmsta->tid_data[tid].state != IWL_AGG_OFF) 105199448a8cSJohannes Berg tid_bitmap &= ~BIT(tid); 105299448a8cSJohannes Berg } 105399448a8cSJohannes Berg 1054724fe771SJohannes Berg /* If all TIDs in the queue are inactive - return it can be reused */ 105599448a8cSJohannes Berg if (tid_bitmap == mvm->queue_info[queue].tid_bitmap) { 1056724fe771SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Queue %d is inactive\n", queue); 1057724fe771SJohannes Berg return true; 105899448a8cSJohannes Berg } 105999448a8cSJohannes Berg 106099448a8cSJohannes Berg /* 106199448a8cSJohannes Berg * If we are here, this is a shared queue and not all TIDs timed-out. 106299448a8cSJohannes Berg * Remove the ones that did. 106399448a8cSJohannes Berg */ 106499448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1065b3a87f11SJohannes Berg u16 tid_bitmap; 106699448a8cSJohannes Berg 106799448a8cSJohannes Berg mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 106899448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 106999448a8cSJohannes Berg 1070b3a87f11SJohannes Berg tid_bitmap = mvm->queue_info[queue].tid_bitmap; 1071b3a87f11SJohannes Berg 1072b3a87f11SJohannes Berg /* 1073b3a87f11SJohannes Berg * We need to take into account a situation in which a TXQ was 1074b3a87f11SJohannes Berg * allocated to TID x, and then turned shared by adding TIDs y 1075b3a87f11SJohannes Berg * and z. If TID x becomes inactive and is removed from the TXQ, 1076b3a87f11SJohannes Berg * ownership must be given to one of the remaining TIDs. 1077b3a87f11SJohannes Berg * This is mainly because if TID x continues - a new queue can't 1078b3a87f11SJohannes Berg * be allocated for it as long as it is an owner of another TXQ. 1079b3a87f11SJohannes Berg * 1080b3a87f11SJohannes Berg * Mark this queue in the right bitmap, we'll send the command 1081b3a87f11SJohannes Berg * to the firmware later. 1082b3a87f11SJohannes Berg */ 1083b3a87f11SJohannes Berg if (!(tid_bitmap & BIT(mvm->queue_info[queue].txq_tid))) 1084b3a87f11SJohannes Berg set_bit(queue, changetid_queues); 1085b3a87f11SJohannes Berg 108699448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 108799448a8cSJohannes Berg "Removing inactive TID %d from shared Q:%d\n", 108899448a8cSJohannes Berg tid, queue); 108999448a8cSJohannes Berg } 109099448a8cSJohannes Berg 109199448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 109299448a8cSJohannes Berg "TXQ #%d left with tid bitmap 0x%x\n", queue, 109399448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap); 109499448a8cSJohannes Berg 109599448a8cSJohannes Berg /* 109699448a8cSJohannes Berg * There may be different TIDs with the same mac queues, so make 109799448a8cSJohannes Berg * sure all TIDs have existing corresponding mac queues enabled 109899448a8cSJohannes Berg */ 109999448a8cSJohannes Berg tid_bitmap = mvm->queue_info[queue].tid_bitmap; 110099448a8cSJohannes Berg 110199448a8cSJohannes Berg /* If the queue is marked as shared - "unshare" it */ 11021c14089eSJohannes Berg if (hweight16(mvm->queue_info[queue].tid_bitmap) == 1 && 110399448a8cSJohannes Berg mvm->queue_info[queue].status == IWL_MVM_QUEUE_SHARED) { 110499448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Marking Q:%d for reconfig\n", 110599448a8cSJohannes Berg queue); 110690d2d94cSJohannes Berg set_bit(queue, unshare_queues); 110799448a8cSJohannes Berg } 1108724fe771SJohannes Berg 1109724fe771SJohannes Berg return false; 111099448a8cSJohannes Berg } 111199448a8cSJohannes Berg 1112724fe771SJohannes Berg /* 1113724fe771SJohannes Berg * Check for inactivity - this includes checking if any queue 1114724fe771SJohannes Berg * can be unshared and finding one (and only one) that can be 1115724fe771SJohannes Berg * reused. 1116724fe771SJohannes Berg * This function is also invoked as a sort of clean-up task, 1117724fe771SJohannes Berg * in which case @alloc_for_sta is IWL_MVM_INVALID_STA. 1118724fe771SJohannes Berg * 1119724fe771SJohannes Berg * Returns the queue number, or -ENOSPC. 1120724fe771SJohannes Berg */ 1121724fe771SJohannes Berg static int iwl_mvm_inactivity_check(struct iwl_mvm *mvm, u8 alloc_for_sta) 112299448a8cSJohannes Berg { 112399448a8cSJohannes Berg unsigned long now = jiffies; 112490d2d94cSJohannes Berg unsigned long unshare_queues = 0; 1125b3a87f11SJohannes Berg unsigned long changetid_queues = 0; 1126724fe771SJohannes Berg int i, ret, free_queue = -ENOSPC; 1127cfbc6c4cSSara Sharon struct ieee80211_sta *queue_owner = NULL; 112899448a8cSJohannes Berg 1129df2a2245SJohannes Berg lockdep_assert_held(&mvm->mutex); 1130df2a2245SJohannes Berg 113199448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1132724fe771SJohannes Berg return -ENOSPC; 113399448a8cSJohannes Berg 113499448a8cSJohannes Berg rcu_read_lock(); 113599448a8cSJohannes Berg 1136459ab045SJohannes Berg /* we skip the CMD queue below by starting at 1 */ 1137459ab045SJohannes Berg BUILD_BUG_ON(IWL_MVM_DQA_CMD_QUEUE != 0); 1138459ab045SJohannes Berg 1139459ab045SJohannes Berg for (i = 1; i < IWL_MAX_HW_QUEUES; i++) { 114099448a8cSJohannes Berg struct ieee80211_sta *sta; 114199448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta; 114299448a8cSJohannes Berg u8 sta_id; 114399448a8cSJohannes Berg int tid; 114499448a8cSJohannes Berg unsigned long inactive_tid_bitmap = 0; 114599448a8cSJohannes Berg unsigned long queue_tid_bitmap; 114699448a8cSJohannes Berg 114799448a8cSJohannes Berg queue_tid_bitmap = mvm->queue_info[i].tid_bitmap; 1148459ab045SJohannes Berg if (!queue_tid_bitmap) 1149459ab045SJohannes Berg continue; 115099448a8cSJohannes Berg 115199448a8cSJohannes Berg /* If TXQ isn't in active use anyway - nothing to do here... */ 115299448a8cSJohannes Berg if (mvm->queue_info[i].status != IWL_MVM_QUEUE_READY && 1153459ab045SJohannes Berg mvm->queue_info[i].status != IWL_MVM_QUEUE_SHARED) 115499448a8cSJohannes Berg continue; 115599448a8cSJohannes Berg 115699448a8cSJohannes Berg /* Check to see if there are inactive TIDs on this queue */ 115799448a8cSJohannes Berg for_each_set_bit(tid, &queue_tid_bitmap, 115899448a8cSJohannes Berg IWL_MAX_TID_COUNT + 1) { 115999448a8cSJohannes Berg if (time_after(mvm->queue_info[i].last_frame_time[tid] + 116099448a8cSJohannes Berg IWL_MVM_DQA_QUEUE_TIMEOUT, now)) 116199448a8cSJohannes Berg continue; 116299448a8cSJohannes Berg 116399448a8cSJohannes Berg inactive_tid_bitmap |= BIT(tid); 116499448a8cSJohannes Berg } 116599448a8cSJohannes Berg 116699448a8cSJohannes Berg /* If all TIDs are active - finish check on this queue */ 116799448a8cSJohannes Berg if (!inactive_tid_bitmap) 116899448a8cSJohannes Berg continue; 116999448a8cSJohannes Berg 117099448a8cSJohannes Berg /* 117199448a8cSJohannes Berg * If we are here - the queue hadn't been served recently and is 117299448a8cSJohannes Berg * in use 117399448a8cSJohannes Berg */ 117499448a8cSJohannes Berg 117599448a8cSJohannes Berg sta_id = mvm->queue_info[i].ra_sta_id; 117699448a8cSJohannes Berg sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 117799448a8cSJohannes Berg 117899448a8cSJohannes Berg /* 117999448a8cSJohannes Berg * If the STA doesn't exist anymore, it isn't an error. It could 118099448a8cSJohannes Berg * be that it was removed since getting the queues, and in this 118199448a8cSJohannes Berg * case it should've inactivated its queues anyway. 118299448a8cSJohannes Berg */ 118399448a8cSJohannes Berg if (IS_ERR_OR_NULL(sta)) 118499448a8cSJohannes Berg continue; 118599448a8cSJohannes Berg 118699448a8cSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 118799448a8cSJohannes Berg 1188f3f240f9SJohannes Berg spin_lock_bh(&mvmsta->lock); 1189724fe771SJohannes Berg ret = iwl_mvm_remove_inactive_tids(mvm, mvmsta, i, 119090d2d94cSJohannes Berg inactive_tid_bitmap, 1191b3a87f11SJohannes Berg &unshare_queues, 1192b3a87f11SJohannes Berg &changetid_queues); 1193e6d419f9SJohannes Berg if (ret && free_queue < 0) { 1194cfbc6c4cSSara Sharon queue_owner = sta; 1195e6d419f9SJohannes Berg free_queue = i; 1196cfbc6c4cSSara Sharon } 1197459ab045SJohannes Berg /* only unlock sta lock - we still need the queue info lock */ 1198f3f240f9SJohannes Berg spin_unlock_bh(&mvmsta->lock); 119999448a8cSJohannes Berg } 120099448a8cSJohannes Berg 1201df2a2245SJohannes Berg 1202df2a2245SJohannes Berg /* Reconfigure queues requiring reconfiguation */ 120390d2d94cSJohannes Berg for_each_set_bit(i, &unshare_queues, IWL_MAX_HW_QUEUES) 120490d2d94cSJohannes Berg iwl_mvm_unshare_queue(mvm, i); 1205b3a87f11SJohannes Berg for_each_set_bit(i, &changetid_queues, IWL_MAX_HW_QUEUES) 1206b3a87f11SJohannes Berg iwl_mvm_change_queue_tid(mvm, i); 1207724fe771SJohannes Berg 1208fbb1461aSJohannes Berg rcu_read_unlock(); 1209fbb1461aSJohannes Berg 1210724fe771SJohannes Berg if (free_queue >= 0 && alloc_for_sta != IWL_MVM_INVALID_STA) { 1211cfbc6c4cSSara Sharon ret = iwl_mvm_free_inactive_queue(mvm, free_queue, queue_owner, 1212724fe771SJohannes Berg alloc_for_sta); 1213fbb1461aSJohannes Berg if (ret) 1214724fe771SJohannes Berg return ret; 1215724fe771SJohannes Berg } 1216724fe771SJohannes Berg 1217724fe771SJohannes Berg return free_queue; 121899448a8cSJohannes Berg } 121999448a8cSJohannes Berg 1220c20e08b0SJohannes Berg static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm, 1221cfbc6c4cSSara Sharon struct ieee80211_sta *sta, u8 ac, int tid) 1222c20e08b0SJohannes Berg { 1223c20e08b0SJohannes Berg struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1224c20e08b0SJohannes Berg struct iwl_trans_txq_scd_cfg cfg = { 1225c20e08b0SJohannes Berg .fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac), 1226c20e08b0SJohannes Berg .sta_id = mvmsta->sta_id, 1227c20e08b0SJohannes Berg .tid = tid, 1228c20e08b0SJohannes Berg .frame_limit = IWL_FRAME_LIMIT, 1229c20e08b0SJohannes Berg }; 1230c20e08b0SJohannes Berg unsigned int wdg_timeout = 1231c20e08b0SJohannes Berg iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); 1232c20e08b0SJohannes Berg int queue = -1; 1233c20e08b0SJohannes Berg unsigned long disable_agg_tids = 0; 1234c20e08b0SJohannes Berg enum iwl_mvm_agg_state queue_state; 1235c20e08b0SJohannes Berg bool shared_queue = false, inc_ssn; 1236c20e08b0SJohannes Berg int ssn; 1237c20e08b0SJohannes Berg unsigned long tfd_queue_mask; 1238c20e08b0SJohannes Berg int ret; 1239c20e08b0SJohannes Berg 1240c20e08b0SJohannes Berg lockdep_assert_held(&mvm->mutex); 1241c20e08b0SJohannes Berg 1242c20e08b0SJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) 1243c20e08b0SJohannes Berg return iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 1244c20e08b0SJohannes Berg 1245c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1246c20e08b0SJohannes Berg tfd_queue_mask = mvmsta->tfd_queue_msk; 124735739348SSara Sharon ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); 1248c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1249c20e08b0SJohannes Berg 1250cfbc6c4cSSara Sharon if (tid == IWL_MAX_TID_COUNT) { 1251c20e08b0SJohannes Berg queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 1252c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_MGMT_QUEUE, 1253c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_MGMT_QUEUE); 1254c20e08b0SJohannes Berg if (queue >= IWL_MVM_DQA_MIN_MGMT_QUEUE) 1255c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Found free MGMT queue #%d\n", 1256c20e08b0SJohannes Berg queue); 1257c20e08b0SJohannes Berg 1258c20e08b0SJohannes Berg /* If no such queue is found, we'll use a DATA queue instead */ 1259c20e08b0SJohannes Berg } 1260c20e08b0SJohannes Berg 1261c20e08b0SJohannes Berg if ((queue < 0 && mvmsta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) && 1262c20e08b0SJohannes Berg (mvm->queue_info[mvmsta->reserved_queue].status == 1263724fe771SJohannes Berg IWL_MVM_QUEUE_RESERVED)) { 1264c20e08b0SJohannes Berg queue = mvmsta->reserved_queue; 1265c20e08b0SJohannes Berg mvm->queue_info[queue].reserved = true; 1266c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Using reserved queue #%d\n", queue); 1267c20e08b0SJohannes Berg } 1268c20e08b0SJohannes Berg 1269c20e08b0SJohannes Berg if (queue < 0) 1270c20e08b0SJohannes Berg queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 1271c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 1272c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 1273724fe771SJohannes Berg if (queue < 0) { 1274724fe771SJohannes Berg /* try harder - perhaps kill an inactive queue */ 1275724fe771SJohannes Berg queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id); 1276c20e08b0SJohannes Berg } 1277c20e08b0SJohannes Berg 1278c20e08b0SJohannes Berg /* No free queue - we'll have to share */ 1279c20e08b0SJohannes Berg if (queue <= 0) { 1280c20e08b0SJohannes Berg queue = iwl_mvm_get_shared_queue(mvm, tfd_queue_mask, ac); 1281c20e08b0SJohannes Berg if (queue > 0) { 1282c20e08b0SJohannes Berg shared_queue = true; 1283c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_SHARED; 1284c20e08b0SJohannes Berg } 1285c20e08b0SJohannes Berg } 1286c20e08b0SJohannes Berg 1287c20e08b0SJohannes Berg /* 1288c20e08b0SJohannes Berg * Mark TXQ as ready, even though it hasn't been fully configured yet, 1289c20e08b0SJohannes Berg * to make sure no one else takes it. 1290c20e08b0SJohannes Berg * This will allow avoiding re-acquiring the lock at the end of the 1291c20e08b0SJohannes Berg * configuration. On error we'll mark it back as free. 1292c20e08b0SJohannes Berg */ 1293c20e08b0SJohannes Berg if (queue > 0 && !shared_queue) 1294c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 1295c20e08b0SJohannes Berg 1296c20e08b0SJohannes Berg /* This shouldn't happen - out of queues */ 1297c20e08b0SJohannes Berg if (WARN_ON(queue <= 0)) { 1298c20e08b0SJohannes Berg IWL_ERR(mvm, "No available queues for tid %d on sta_id %d\n", 1299c20e08b0SJohannes Berg tid, cfg.sta_id); 1300c20e08b0SJohannes Berg return queue; 1301c20e08b0SJohannes Berg } 1302c20e08b0SJohannes Berg 1303c20e08b0SJohannes Berg /* 1304c20e08b0SJohannes Berg * Actual en/disablement of aggregations is through the ADD_STA HCMD, 1305c20e08b0SJohannes Berg * but for configuring the SCD to send A-MPDUs we need to mark the queue 1306c20e08b0SJohannes Berg * as aggregatable. 1307c20e08b0SJohannes Berg * Mark all DATA queues as allowing to be aggregated at some point 1308c20e08b0SJohannes Berg */ 1309c20e08b0SJohannes Berg cfg.aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1310c20e08b0SJohannes Berg queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE); 1311c20e08b0SJohannes Berg 1312c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, 1313c20e08b0SJohannes Berg "Allocating %squeue #%d to sta %d on tid %d\n", 1314c20e08b0SJohannes Berg shared_queue ? "shared " : "", queue, 1315c20e08b0SJohannes Berg mvmsta->sta_id, tid); 1316c20e08b0SJohannes Berg 1317c20e08b0SJohannes Berg if (shared_queue) { 1318c20e08b0SJohannes Berg /* Disable any open aggs on this queue */ 1319c20e08b0SJohannes Berg disable_agg_tids = iwl_mvm_get_queue_agg_tids(mvm, queue); 1320c20e08b0SJohannes Berg 1321c20e08b0SJohannes Berg if (disable_agg_tids) { 1322c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Disabling aggs on queue %d\n", 1323c20e08b0SJohannes Berg queue); 1324c20e08b0SJohannes Berg iwl_mvm_invalidate_sta_queue(mvm, queue, 1325c20e08b0SJohannes Berg disable_agg_tids, false); 1326c20e08b0SJohannes Berg } 1327c20e08b0SJohannes Berg } 1328c20e08b0SJohannes Berg 1329cfbc6c4cSSara Sharon inc_ssn = iwl_mvm_enable_txq(mvm, sta, queue, ssn, &cfg, wdg_timeout); 1330c20e08b0SJohannes Berg 1331c20e08b0SJohannes Berg /* 1332c20e08b0SJohannes Berg * Mark queue as shared in transport if shared 1333c20e08b0SJohannes Berg * Note this has to be done after queue enablement because enablement 1334c20e08b0SJohannes Berg * can also set this value, and there is no indication there to shared 1335c20e08b0SJohannes Berg * queues 1336c20e08b0SJohannes Berg */ 1337c20e08b0SJohannes Berg if (shared_queue) 1338c20e08b0SJohannes Berg iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); 1339c20e08b0SJohannes Berg 1340c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock); 1341c20e08b0SJohannes Berg /* 1342c20e08b0SJohannes Berg * This looks racy, but it is not. We have only one packet for 1343c20e08b0SJohannes Berg * this ra/tid in our Tx path since we stop the Qdisc when we 1344c20e08b0SJohannes Berg * need to allocate a new TFD queue. 1345c20e08b0SJohannes Berg */ 134635739348SSara Sharon if (inc_ssn) { 1347c20e08b0SJohannes Berg mvmsta->tid_data[tid].seq_number += 0x10; 134835739348SSara Sharon ssn = (ssn + 1) & IEEE80211_SCTL_SEQ; 134935739348SSara Sharon } 1350c20e08b0SJohannes Berg mvmsta->tid_data[tid].txq_id = queue; 1351c20e08b0SJohannes Berg mvmsta->tfd_queue_msk |= BIT(queue); 1352c20e08b0SJohannes Berg queue_state = mvmsta->tid_data[tid].state; 1353c20e08b0SJohannes Berg 1354c20e08b0SJohannes Berg if (mvmsta->reserved_queue == queue) 1355c20e08b0SJohannes Berg mvmsta->reserved_queue = IEEE80211_INVAL_HW_QUEUE; 1356c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock); 1357c20e08b0SJohannes Berg 1358c20e08b0SJohannes Berg if (!shared_queue) { 1359c20e08b0SJohannes Berg ret = iwl_mvm_sta_send_to_fw(mvm, sta, true, STA_MODIFY_QUEUES); 1360c20e08b0SJohannes Berg if (ret) 1361c20e08b0SJohannes Berg goto out_err; 1362c20e08b0SJohannes Berg 1363c20e08b0SJohannes Berg /* If we need to re-enable aggregations... */ 1364c20e08b0SJohannes Berg if (queue_state == IWL_AGG_ON) { 1365c20e08b0SJohannes Berg ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 1366c20e08b0SJohannes Berg if (ret) 1367c20e08b0SJohannes Berg goto out_err; 1368c20e08b0SJohannes Berg } 1369c20e08b0SJohannes Berg } else { 1370c20e08b0SJohannes Berg /* Redirect queue, if needed */ 1371cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, ac, ssn, 1372cfbc6c4cSSara Sharon wdg_timeout, false, 1373cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid)); 1374c20e08b0SJohannes Berg if (ret) 1375c20e08b0SJohannes Berg goto out_err; 1376c20e08b0SJohannes Berg } 1377c20e08b0SJohannes Berg 1378c20e08b0SJohannes Berg return 0; 1379c20e08b0SJohannes Berg 1380c20e08b0SJohannes Berg out_err: 1381cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, sta, queue, tid, 0); 1382c20e08b0SJohannes Berg 1383c20e08b0SJohannes Berg return ret; 1384c20e08b0SJohannes Berg } 1385c20e08b0SJohannes Berg 138624afba76SLiad Kaufman void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk) 138724afba76SLiad Kaufman { 138824afba76SLiad Kaufman struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, 138924afba76SLiad Kaufman add_stream_wk); 139024afba76SLiad Kaufman 139124afba76SLiad Kaufman mutex_lock(&mvm->mutex); 139224afba76SLiad Kaufman 1393724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 13949f9af3d7SLiad Kaufman 1395cfbc6c4cSSara Sharon while (!list_empty(&mvm->add_stream_txqs)) { 1396cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq; 1397cfbc6c4cSSara Sharon struct ieee80211_txq *txq; 1398cfbc6c4cSSara Sharon u8 tid; 139924afba76SLiad Kaufman 1400cfbc6c4cSSara Sharon mvmtxq = list_first_entry(&mvm->add_stream_txqs, 1401cfbc6c4cSSara Sharon struct iwl_mvm_txq, list); 140224afba76SLiad Kaufman 1403cfbc6c4cSSara Sharon txq = container_of((void *)mvmtxq, struct ieee80211_txq, 1404cfbc6c4cSSara Sharon drv_priv); 1405cfbc6c4cSSara Sharon tid = txq->tid; 1406cfbc6c4cSSara Sharon if (tid == IEEE80211_NUM_TIDS) 1407cfbc6c4cSSara Sharon tid = IWL_MAX_TID_COUNT; 1408cfbc6c4cSSara Sharon 14093d1d87abSJohannes Berg /* 14103d1d87abSJohannes Berg * We can't really do much here, but if this fails we can't 14113d1d87abSJohannes Berg * transmit anyway - so just don't transmit the frame etc. 14123d1d87abSJohannes Berg * and let them back up ... we've tried our best to allocate 14133d1d87abSJohannes Berg * a queue in the function itself. 14143d1d87abSJohannes Berg */ 14153d1d87abSJohannes Berg if (iwl_mvm_sta_alloc_queue(mvm, txq->sta, txq->ac, tid)) { 14163d1d87abSJohannes Berg list_del_init(&mvmtxq->list); 14173d1d87abSJohannes Berg continue; 14183d1d87abSJohannes Berg } 14193d1d87abSJohannes Berg 1420cfbc6c4cSSara Sharon list_del_init(&mvmtxq->list); 1421f5ae2f93SJohannes Berg local_bh_disable(); 1422cfbc6c4cSSara Sharon iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1423f5ae2f93SJohannes Berg local_bh_enable(); 142424afba76SLiad Kaufman } 142524afba76SLiad Kaufman 142624afba76SLiad Kaufman mutex_unlock(&mvm->mutex); 142724afba76SLiad Kaufman } 142824afba76SLiad Kaufman 142924afba76SLiad Kaufman static int iwl_mvm_reserve_sta_stream(struct iwl_mvm *mvm, 1430d5216a28SLiad Kaufman struct ieee80211_sta *sta, 1431d5216a28SLiad Kaufman enum nl80211_iftype vif_type) 143224afba76SLiad Kaufman { 143324afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 143424afba76SLiad Kaufman int queue; 143524afba76SLiad Kaufman 1436396952eeSSara Sharon /* queue reserving is disabled on new TX path */ 1437396952eeSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1438396952eeSSara Sharon return 0; 1439396952eeSSara Sharon 1440724fe771SJohannes Berg /* run the general cleanup/unsharing of queues */ 1441724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); 14429794c64fSLiad Kaufman 144324afba76SLiad Kaufman /* Make sure we have free resources for this STA */ 1444d5216a28SLiad Kaufman if (vif_type == NL80211_IFTYPE_STATION && !sta->tdls && 14451c14089eSJohannes Berg !mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].tid_bitmap && 1446cf961e16SLiad Kaufman (mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].status == 1447cf961e16SLiad Kaufman IWL_MVM_QUEUE_FREE)) 1448d5216a28SLiad Kaufman queue = IWL_MVM_DQA_BSS_CLIENT_QUEUE; 1449d5216a28SLiad Kaufman else 14509794c64fSLiad Kaufman queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 14519794c64fSLiad Kaufman IWL_MVM_DQA_MIN_DATA_QUEUE, 145224afba76SLiad Kaufman IWL_MVM_DQA_MAX_DATA_QUEUE); 145324afba76SLiad Kaufman if (queue < 0) { 1454724fe771SJohannes Berg /* try again - this time kick out a queue if needed */ 1455724fe771SJohannes Berg queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id); 1456724fe771SJohannes Berg if (queue < 0) { 145724afba76SLiad Kaufman IWL_ERR(mvm, "No available queues for new station\n"); 145824afba76SLiad Kaufman return -ENOSPC; 1459724fe771SJohannes Berg } 146024afba76SLiad Kaufman } 1461cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_RESERVED; 146224afba76SLiad Kaufman 146324afba76SLiad Kaufman mvmsta->reserved_queue = queue; 146424afba76SLiad Kaufman 146524afba76SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Reserving data queue #%d for sta_id %d\n", 146624afba76SLiad Kaufman queue, mvmsta->sta_id); 146724afba76SLiad Kaufman 146824afba76SLiad Kaufman return 0; 146924afba76SLiad Kaufman } 147024afba76SLiad Kaufman 14718d98ae6eSLiad Kaufman /* 14728d98ae6eSLiad Kaufman * In DQA mode, after a HW restart the queues should be allocated as before, in 14738d98ae6eSLiad Kaufman * order to avoid race conditions when there are shared queues. This function 14748d98ae6eSLiad Kaufman * does the re-mapping and queue allocation. 14758d98ae6eSLiad Kaufman * 14768d98ae6eSLiad Kaufman * Note that re-enabling aggregations isn't done in this function. 14778d98ae6eSLiad Kaufman */ 14788d98ae6eSLiad Kaufman static void iwl_mvm_realloc_queues_after_restart(struct iwl_mvm *mvm, 1479cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 14808d98ae6eSLiad Kaufman { 1481cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1482cfbc6c4cSSara Sharon unsigned int wdg = 14838d98ae6eSLiad Kaufman iwl_mvm_get_wd_timeout(mvm, mvm_sta->vif, false, false); 14848d98ae6eSLiad Kaufman int i; 14858d98ae6eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 14868d98ae6eSLiad Kaufman .sta_id = mvm_sta->sta_id, 14878d98ae6eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 14888d98ae6eSLiad Kaufman }; 14898d98ae6eSLiad Kaufman 149003c902bfSJohannes Berg /* Make sure reserved queue is still marked as such (if allocated) */ 149103c902bfSJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) 14928d98ae6eSLiad Kaufman mvm->queue_info[mvm_sta->reserved_queue].status = 14938d98ae6eSLiad Kaufman IWL_MVM_QUEUE_RESERVED; 14948d98ae6eSLiad Kaufman 14958d98ae6eSLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 14968d98ae6eSLiad Kaufman struct iwl_mvm_tid_data *tid_data = &mvm_sta->tid_data[i]; 14978d98ae6eSLiad Kaufman int txq_id = tid_data->txq_id; 14988d98ae6eSLiad Kaufman int ac; 14998d98ae6eSLiad Kaufman 15006862fceeSSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 15018d98ae6eSLiad Kaufman continue; 15028d98ae6eSLiad Kaufman 15038d98ae6eSLiad Kaufman ac = tid_to_mac80211_ac[i]; 15048d98ae6eSLiad Kaufman 1505310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1506310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, 1507310181ecSSara Sharon "Re-mapping sta %d tid %d\n", 1508310181ecSSara Sharon mvm_sta->sta_id, i); 1509cfbc6c4cSSara Sharon txq_id = iwl_mvm_tvqm_enable_txq(mvm, mvm_sta->sta_id, 1510cfbc6c4cSSara Sharon i, wdg); 151191cf5dedSJohannes Berg /* 151291cf5dedSJohannes Berg * on failures, just set it to IWL_MVM_INVALID_QUEUE 151391cf5dedSJohannes Berg * to try again later, we have no other good way of 151491cf5dedSJohannes Berg * failing here 151591cf5dedSJohannes Berg */ 151691cf5dedSJohannes Berg if (txq_id < 0) 151791cf5dedSJohannes Berg txq_id = IWL_MVM_INVALID_QUEUE; 1518310181ecSSara Sharon tid_data->txq_id = txq_id; 15195d39051aSLiad Kaufman 15205d39051aSLiad Kaufman /* 15215d39051aSLiad Kaufman * Since we don't set the seq number after reset, and HW 15225d39051aSLiad Kaufman * sets it now, FW reset will cause the seq num to start 15235d39051aSLiad Kaufman * at 0 again, so driver will need to update it 15245d39051aSLiad Kaufman * internally as well, so it keeps in sync with real val 15255d39051aSLiad Kaufman */ 15265d39051aSLiad Kaufman tid_data->seq_number = 0; 1527310181ecSSara Sharon } else { 1528310181ecSSara Sharon u16 seq = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 1529310181ecSSara Sharon 15308d98ae6eSLiad Kaufman cfg.tid = i; 1531cf6c6ea3SEmmanuel Grumbach cfg.fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac); 15328d98ae6eSLiad Kaufman cfg.aggregate = (txq_id >= IWL_MVM_DQA_MIN_DATA_QUEUE || 1533310181ecSSara Sharon txq_id == 1534310181ecSSara Sharon IWL_MVM_DQA_BSS_CLIENT_QUEUE); 15358d98ae6eSLiad Kaufman 15368d98ae6eSLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 15378d98ae6eSLiad Kaufman "Re-mapping sta %d tid %d to queue %d\n", 15388d98ae6eSLiad Kaufman mvm_sta->sta_id, i, txq_id); 15398d98ae6eSLiad Kaufman 1540cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, txq_id, seq, &cfg, wdg); 15418d98ae6eSLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_READY; 15428d98ae6eSLiad Kaufman } 154334e10860SSara Sharon } 15448d98ae6eSLiad Kaufman } 15458d98ae6eSLiad Kaufman 1546732d06e9SShaul Triebitz static int iwl_mvm_add_int_sta_common(struct iwl_mvm *mvm, 1547732d06e9SShaul Triebitz struct iwl_mvm_int_sta *sta, 1548732d06e9SShaul Triebitz const u8 *addr, 1549732d06e9SShaul Triebitz u16 mac_id, u16 color) 1550732d06e9SShaul Triebitz { 1551732d06e9SShaul Triebitz struct iwl_mvm_add_sta_cmd cmd; 1552732d06e9SShaul Triebitz int ret; 15533f497de9SLuca Coelho u32 status = ADD_STA_SUCCESS; 1554732d06e9SShaul Triebitz 1555732d06e9SShaul Triebitz lockdep_assert_held(&mvm->mutex); 1556732d06e9SShaul Triebitz 1557732d06e9SShaul Triebitz memset(&cmd, 0, sizeof(cmd)); 1558732d06e9SShaul Triebitz cmd.sta_id = sta->sta_id; 15592c2c3647SNathan Errera 15602c2c3647SNathan Errera if (iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP, ADD_STA, 15612c2c3647SNathan Errera 0) >= 12 && 15622c2c3647SNathan Errera sta->type == IWL_STA_AUX_ACTIVITY) 15632c2c3647SNathan Errera cmd.mac_id_n_color = cpu_to_le32(mac_id); 15642c2c3647SNathan Errera else 1565732d06e9SShaul Triebitz cmd.mac_id_n_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mac_id, 1566732d06e9SShaul Triebitz color)); 15672c2c3647SNathan Errera 1568732d06e9SShaul Triebitz if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 1569732d06e9SShaul Triebitz cmd.station_type = sta->type; 1570732d06e9SShaul Triebitz 1571732d06e9SShaul Triebitz if (!iwl_mvm_has_new_tx_api(mvm)) 1572732d06e9SShaul Triebitz cmd.tfd_queue_msk = cpu_to_le32(sta->tfd_queue_msk); 1573732d06e9SShaul Triebitz cmd.tid_disable_tx = cpu_to_le16(0xffff); 1574732d06e9SShaul Triebitz 1575732d06e9SShaul Triebitz if (addr) 1576732d06e9SShaul Triebitz memcpy(cmd.addr, addr, ETH_ALEN); 1577732d06e9SShaul Triebitz 1578732d06e9SShaul Triebitz ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1579732d06e9SShaul Triebitz iwl_mvm_add_sta_cmd_size(mvm), 1580732d06e9SShaul Triebitz &cmd, &status); 1581732d06e9SShaul Triebitz if (ret) 1582732d06e9SShaul Triebitz return ret; 1583732d06e9SShaul Triebitz 1584732d06e9SShaul Triebitz switch (status & IWL_ADD_STA_STATUS_MASK) { 1585732d06e9SShaul Triebitz case ADD_STA_SUCCESS: 1586732d06e9SShaul Triebitz IWL_DEBUG_INFO(mvm, "Internal station added.\n"); 1587732d06e9SShaul Triebitz return 0; 1588732d06e9SShaul Triebitz default: 1589732d06e9SShaul Triebitz ret = -EIO; 1590732d06e9SShaul Triebitz IWL_ERR(mvm, "Add internal station failed, status=0x%x\n", 1591732d06e9SShaul Triebitz status); 1592732d06e9SShaul Triebitz break; 1593732d06e9SShaul Triebitz } 1594732d06e9SShaul Triebitz return ret; 1595732d06e9SShaul Triebitz } 1596732d06e9SShaul Triebitz 1597e705c121SKalle Valo int iwl_mvm_add_sta(struct iwl_mvm *mvm, 1598e705c121SKalle Valo struct ieee80211_vif *vif, 1599e705c121SKalle Valo struct ieee80211_sta *sta) 1600e705c121SKalle Valo { 1601e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1602e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1603a571f5f6SSara Sharon struct iwl_mvm_rxq_dup_data *dup_data; 1604e705c121SKalle Valo int i, ret, sta_id; 1605732d06e9SShaul Triebitz bool sta_update = false; 1606732d06e9SShaul Triebitz unsigned int sta_flags = 0; 1607e705c121SKalle Valo 1608e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1609e705c121SKalle Valo 1610e705c121SKalle Valo if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1611e705c121SKalle Valo sta_id = iwl_mvm_find_free_sta_id(mvm, 1612e705c121SKalle Valo ieee80211_vif_type_p2p(vif)); 1613e705c121SKalle Valo else 1614e705c121SKalle Valo sta_id = mvm_sta->sta_id; 1615e705c121SKalle Valo 16160ae98812SSara Sharon if (sta_id == IWL_MVM_INVALID_STA) 1617e705c121SKalle Valo return -ENOSPC; 1618e705c121SKalle Valo 1619e705c121SKalle Valo spin_lock_init(&mvm_sta->lock); 1620e705c121SKalle Valo 1621c8f54701SJohannes Berg /* if this is a HW restart re-alloc existing queues */ 1622c8f54701SJohannes Berg if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1623732d06e9SShaul Triebitz struct iwl_mvm_int_sta tmp_sta = { 1624732d06e9SShaul Triebitz .sta_id = sta_id, 1625732d06e9SShaul Triebitz .type = mvm_sta->sta_type, 1626732d06e9SShaul Triebitz }; 1627732d06e9SShaul Triebitz 1628732d06e9SShaul Triebitz /* 1629732d06e9SShaul Triebitz * First add an empty station since allocating 1630732d06e9SShaul Triebitz * a queue requires a valid station 1631732d06e9SShaul Triebitz */ 1632732d06e9SShaul Triebitz ret = iwl_mvm_add_int_sta_common(mvm, &tmp_sta, sta->addr, 1633732d06e9SShaul Triebitz mvmvif->id, mvmvif->color); 1634732d06e9SShaul Triebitz if (ret) 1635732d06e9SShaul Triebitz goto err; 1636732d06e9SShaul Triebitz 1637cfbc6c4cSSara Sharon iwl_mvm_realloc_queues_after_restart(mvm, sta); 1638732d06e9SShaul Triebitz sta_update = true; 1639732d06e9SShaul Triebitz sta_flags = iwl_mvm_has_new_tx_api(mvm) ? 0 : STA_MODIFY_QUEUES; 16408d98ae6eSLiad Kaufman goto update_fw; 16418d98ae6eSLiad Kaufman } 16428d98ae6eSLiad Kaufman 1643e705c121SKalle Valo mvm_sta->sta_id = sta_id; 1644e705c121SKalle Valo mvm_sta->mac_id_n_color = FW_CMD_ID_AND_COLOR(mvmvif->id, 1645e705c121SKalle Valo mvmvif->color); 1646e705c121SKalle Valo mvm_sta->vif = vif; 1647286ca8ebSLuca Coelho if (!mvm->trans->trans_cfg->gen2) 1648e705c121SKalle Valo mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_DEF; 1649a58bb468SLiad Kaufman else 1650a58bb468SLiad Kaufman mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF; 1651e705c121SKalle Valo mvm_sta->tx_protection = 0; 1652e705c121SKalle Valo mvm_sta->tt_tx_protection = false; 1653ced19f26SSara Sharon mvm_sta->sta_type = sta->tdls ? IWL_STA_TDLS_LINK : IWL_STA_LINK; 1654e705c121SKalle Valo 1655e705c121SKalle Valo /* HW restart, don't assume the memory has been zeroed */ 1656e705c121SKalle Valo mvm_sta->tid_disable_agg = 0xffff; /* No aggs at first */ 1657e705c121SKalle Valo mvm_sta->tfd_queue_msk = 0; 1658e705c121SKalle Valo 1659e705c121SKalle Valo /* for HW restart - reset everything but the sequence number */ 166024afba76SLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 1661e705c121SKalle Valo u16 seq = mvm_sta->tid_data[i].seq_number; 1662e705c121SKalle Valo memset(&mvm_sta->tid_data[i], 0, sizeof(mvm_sta->tid_data[i])); 1663e705c121SKalle Valo mvm_sta->tid_data[i].seq_number = seq; 166424afba76SLiad Kaufman 166524afba76SLiad Kaufman /* 166624afba76SLiad Kaufman * Mark all queues for this STA as unallocated and defer TX 166724afba76SLiad Kaufman * frames until the queue is allocated 166824afba76SLiad Kaufman */ 16696862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 1670e705c121SKalle Valo } 1671cfbc6c4cSSara Sharon 1672cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1673cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1674cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1675cfbc6c4cSSara Sharon 1676cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 1677cfbc6c4cSSara Sharon INIT_LIST_HEAD(&mvmtxq->list); 1678fba8248eSSara Sharon atomic_set(&mvmtxq->tx_request, 0); 1679cfbc6c4cSSara Sharon } 1680cfbc6c4cSSara Sharon 1681e705c121SKalle Valo mvm_sta->agg_tids = 0; 1682e705c121SKalle Valo 1683a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && 1684a571f5f6SSara Sharon !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 168592c4dca6SJohannes Berg int q; 168692c4dca6SJohannes Berg 1687a571f5f6SSara Sharon dup_data = kcalloc(mvm->trans->num_rx_queues, 168892c4dca6SJohannes Berg sizeof(*dup_data), GFP_KERNEL); 1689a571f5f6SSara Sharon if (!dup_data) 1690a571f5f6SSara Sharon return -ENOMEM; 169192c4dca6SJohannes Berg /* 169292c4dca6SJohannes Berg * Initialize all the last_seq values to 0xffff which can never 169392c4dca6SJohannes Berg * compare equal to the frame's seq_ctrl in the check in 169492c4dca6SJohannes Berg * iwl_mvm_is_dup() since the lower 4 bits are the fragment 169592c4dca6SJohannes Berg * number and fragmented packets don't reach that function. 169692c4dca6SJohannes Berg * 169792c4dca6SJohannes Berg * This thus allows receiving a packet with seqno 0 and the 169892c4dca6SJohannes Berg * retry bit set as the very first packet on a new TID. 169992c4dca6SJohannes Berg */ 170092c4dca6SJohannes Berg for (q = 0; q < mvm->trans->num_rx_queues; q++) 170192c4dca6SJohannes Berg memset(dup_data[q].last_seq, 0xff, 170292c4dca6SJohannes Berg sizeof(dup_data[q].last_seq)); 1703a571f5f6SSara Sharon mvm_sta->dup_data = dup_data; 1704a571f5f6SSara Sharon } 1705a571f5f6SSara Sharon 1706c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 1707d5216a28SLiad Kaufman ret = iwl_mvm_reserve_sta_stream(mvm, sta, 1708d5216a28SLiad Kaufman ieee80211_vif_type_p2p(vif)); 170924afba76SLiad Kaufman if (ret) 171024afba76SLiad Kaufman goto err; 171124afba76SLiad Kaufman } 171224afba76SLiad Kaufman 17139f66a397SGregory Greenman /* 17149f66a397SGregory Greenman * if rs is registered with mac80211, then "add station" will be handled 17159f66a397SGregory Greenman * via the corresponding ops, otherwise need to notify rate scaling here 17169f66a397SGregory Greenman */ 17174243edb4SEmmanuel Grumbach if (iwl_mvm_has_tlc_offload(mvm)) 17189f66a397SGregory Greenman iwl_mvm_rs_add_sta(mvm, mvm_sta); 17190f8084cdSMordechay Goodstein else 1720f5d88fa3SGregory Greenman spin_lock_init(&mvm_sta->lq_sta.rs_drv.pers.lock); 17219f66a397SGregory Greenman 17220dde2440SAvraham Stern iwl_mvm_toggle_tx_ant(mvm, &mvm_sta->tx_ant); 17230dde2440SAvraham Stern 17248d98ae6eSLiad Kaufman update_fw: 1725732d06e9SShaul Triebitz ret = iwl_mvm_sta_send_to_fw(mvm, sta, sta_update, sta_flags); 1726e705c121SKalle Valo if (ret) 1727e705c121SKalle Valo goto err; 1728e705c121SKalle Valo 1729e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) { 1730e705c121SKalle Valo if (!sta->tdls) { 17310ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id != IWL_MVM_INVALID_STA); 1732e705c121SKalle Valo mvmvif->ap_sta_id = sta_id; 1733e705c121SKalle Valo } else { 17340ae98812SSara Sharon WARN_ON(mvmvif->ap_sta_id == IWL_MVM_INVALID_STA); 1735e705c121SKalle Valo } 1736e705c121SKalle Valo } 1737e705c121SKalle Valo 1738e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], sta); 1739e705c121SKalle Valo 1740e705c121SKalle Valo return 0; 1741e705c121SKalle Valo 1742e705c121SKalle Valo err: 1743e705c121SKalle Valo return ret; 1744e705c121SKalle Valo } 1745e705c121SKalle Valo 1746e705c121SKalle Valo int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, 1747e705c121SKalle Valo bool drain) 1748e705c121SKalle Valo { 1749e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 1750e705c121SKalle Valo int ret; 1751e705c121SKalle Valo u32 status; 1752e705c121SKalle Valo 1753e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1754e705c121SKalle Valo 1755e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); 1756e705c121SKalle Valo cmd.sta_id = mvmsta->sta_id; 1757e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 1758e705c121SKalle Valo cmd.station_flags = drain ? cpu_to_le32(STA_FLG_DRAIN_FLOW) : 0; 1759e705c121SKalle Valo cmd.station_flags_msk = cpu_to_le32(STA_FLG_DRAIN_FLOW); 1760e705c121SKalle Valo 1761e705c121SKalle Valo status = ADD_STA_SUCCESS; 1762854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 1763854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 1764e705c121SKalle Valo &cmd, &status); 1765e705c121SKalle Valo if (ret) 1766e705c121SKalle Valo return ret; 1767e705c121SKalle Valo 1768837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 1769e705c121SKalle Valo case ADD_STA_SUCCESS: 1770e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "Frames for staid %d will drained in fw\n", 1771e705c121SKalle Valo mvmsta->sta_id); 1772e705c121SKalle Valo break; 1773e705c121SKalle Valo default: 1774e705c121SKalle Valo ret = -EIO; 1775e705c121SKalle Valo IWL_ERR(mvm, "Couldn't drain frames for staid %d\n", 1776e705c121SKalle Valo mvmsta->sta_id); 1777e705c121SKalle Valo break; 1778e705c121SKalle Valo } 1779e705c121SKalle Valo 1780e705c121SKalle Valo return ret; 1781e705c121SKalle Valo } 1782e705c121SKalle Valo 1783e705c121SKalle Valo /* 1784e705c121SKalle Valo * Remove a station from the FW table. Before sending the command to remove 1785e705c121SKalle Valo * the station validate that the station is indeed known to the driver (sanity 1786e705c121SKalle Valo * only). 1787e705c121SKalle Valo */ 1788e705c121SKalle Valo static int iwl_mvm_rm_sta_common(struct iwl_mvm *mvm, u8 sta_id) 1789e705c121SKalle Valo { 1790e705c121SKalle Valo struct ieee80211_sta *sta; 1791e705c121SKalle Valo struct iwl_mvm_rm_sta_cmd rm_sta_cmd = { 1792e705c121SKalle Valo .sta_id = sta_id, 1793e705c121SKalle Valo }; 1794e705c121SKalle Valo int ret; 1795e705c121SKalle Valo 1796e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 1797e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1798e705c121SKalle Valo 1799e705c121SKalle Valo /* Note: internal stations are marked as error values */ 1800e705c121SKalle Valo if (!sta) { 1801e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 1802e705c121SKalle Valo return -EINVAL; 1803e705c121SKalle Valo } 1804e705c121SKalle Valo 1805e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, REMOVE_STA, 0, 1806e705c121SKalle Valo sizeof(rm_sta_cmd), &rm_sta_cmd); 1807e705c121SKalle Valo if (ret) { 1808e705c121SKalle Valo IWL_ERR(mvm, "Failed to remove station. Id=%d\n", sta_id); 1809e705c121SKalle Valo return ret; 1810e705c121SKalle Valo } 1811e705c121SKalle Valo 1812e705c121SKalle Valo return 0; 1813e705c121SKalle Valo } 1814e705c121SKalle Valo 181524afba76SLiad Kaufman static void iwl_mvm_disable_sta_queues(struct iwl_mvm *mvm, 181624afba76SLiad Kaufman struct ieee80211_vif *vif, 1817cfbc6c4cSSara Sharon struct ieee80211_sta *sta) 181824afba76SLiad Kaufman { 1819cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 182024afba76SLiad Kaufman int i; 182124afba76SLiad Kaufman 182224afba76SLiad Kaufman lockdep_assert_held(&mvm->mutex); 182324afba76SLiad Kaufman 182424afba76SLiad Kaufman for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 18256862fceeSSara Sharon if (mvm_sta->tid_data[i].txq_id == IWL_MVM_INVALID_QUEUE) 182624afba76SLiad Kaufman continue; 182724afba76SLiad Kaufman 1828cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, sta, mvm_sta->tid_data[i].txq_id, i, 1829cfbc6c4cSSara Sharon 0); 18306862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; 183124afba76SLiad Kaufman } 1832cfbc6c4cSSara Sharon 1833cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1834cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = 1835cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]); 1836cfbc6c4cSSara Sharon 1837cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; 1838cfbc6c4cSSara Sharon } 183924afba76SLiad Kaufman } 184024afba76SLiad Kaufman 1841d6d517b7SSara Sharon int iwl_mvm_wait_sta_queues_empty(struct iwl_mvm *mvm, 1842d6d517b7SSara Sharon struct iwl_mvm_sta *mvm_sta) 1843d6d517b7SSara Sharon { 1844bec9522aSSharon Dvir int i; 1845d6d517b7SSara Sharon 1846d6d517b7SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) { 1847d6d517b7SSara Sharon u16 txq_id; 1848bec9522aSSharon Dvir int ret; 1849d6d517b7SSara Sharon 1850d6d517b7SSara Sharon spin_lock_bh(&mvm_sta->lock); 1851d6d517b7SSara Sharon txq_id = mvm_sta->tid_data[i].txq_id; 1852d6d517b7SSara Sharon spin_unlock_bh(&mvm_sta->lock); 1853d6d517b7SSara Sharon 1854d6d517b7SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) 1855d6d517b7SSara Sharon continue; 1856d6d517b7SSara Sharon 1857d6d517b7SSara Sharon ret = iwl_trans_wait_txq_empty(mvm->trans, txq_id); 1858d6d517b7SSara Sharon if (ret) 1859bec9522aSSharon Dvir return ret; 1860d6d517b7SSara Sharon } 1861d6d517b7SSara Sharon 1862bec9522aSSharon Dvir return 0; 1863d6d517b7SSara Sharon } 1864d6d517b7SSara Sharon 1865e705c121SKalle Valo int iwl_mvm_rm_sta(struct iwl_mvm *mvm, 1866e705c121SKalle Valo struct ieee80211_vif *vif, 1867e705c121SKalle Valo struct ieee80211_sta *sta) 1868e705c121SKalle Valo { 1869e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1870e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 187194c3e614SSara Sharon u8 sta_id = mvm_sta->sta_id; 1872e705c121SKalle Valo int ret; 1873e705c121SKalle Valo 1874e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1875e705c121SKalle Valo 1876a571f5f6SSara Sharon if (iwl_mvm_has_new_rx_api(mvm)) 1877a571f5f6SSara Sharon kfree(mvm_sta->dup_data); 1878a571f5f6SSara Sharon 1879e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, true); 1880e705c121SKalle Valo if (ret) 1881e705c121SKalle Valo return ret; 1882c8f54701SJohannes Berg 1883e705c121SKalle Valo /* flush its queues here since we are freeing mvm_sta */ 1884f9084775SNathan Errera ret = iwl_mvm_flush_sta(mvm, mvm_sta, false); 1885e705c121SKalle Valo if (ret) 1886e705c121SKalle Valo return ret; 1887d6d517b7SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 1888d6d517b7SSara Sharon ret = iwl_mvm_wait_sta_queues_empty(mvm, mvm_sta); 1889d6d517b7SSara Sharon } else { 1890d6d517b7SSara Sharon u32 q_mask = mvm_sta->tfd_queue_msk; 1891d6d517b7SSara Sharon 1892a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 1893d6d517b7SSara Sharon q_mask); 1894d6d517b7SSara Sharon } 1895e705c121SKalle Valo if (ret) 1896e705c121SKalle Valo return ret; 1897c8f54701SJohannes Berg 1898e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, false); 1899e705c121SKalle Valo 1900cfbc6c4cSSara Sharon iwl_mvm_disable_sta_queues(mvm, vif, sta); 190156214749SLiad Kaufman 190256214749SLiad Kaufman /* If there is a TXQ still marked as reserved - free it */ 1903c8f54701SJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) { 1904a0315deaSLiad Kaufman u8 reserved_txq = mvm_sta->reserved_queue; 1905a0315deaSLiad Kaufman enum iwl_mvm_queue_status *status; 1906a0315deaSLiad Kaufman 1907a0315deaSLiad Kaufman /* 1908a0315deaSLiad Kaufman * If no traffic has gone through the reserved TXQ - it 1909a0315deaSLiad Kaufman * is still marked as IWL_MVM_QUEUE_RESERVED, and 1910a0315deaSLiad Kaufman * should be manually marked as free again 1911a0315deaSLiad Kaufman */ 1912a0315deaSLiad Kaufman status = &mvm->queue_info[reserved_txq].status; 1913a0315deaSLiad Kaufman if (WARN((*status != IWL_MVM_QUEUE_RESERVED) && 1914a0315deaSLiad Kaufman (*status != IWL_MVM_QUEUE_FREE), 1915a0315deaSLiad Kaufman "sta_id %d reserved txq %d status %d", 1916f3f240f9SJohannes Berg sta_id, reserved_txq, *status)) 1917a0315deaSLiad Kaufman return -EINVAL; 1918a0315deaSLiad Kaufman 1919a0315deaSLiad Kaufman *status = IWL_MVM_QUEUE_FREE; 1920a0315deaSLiad Kaufman } 1921a0315deaSLiad Kaufman 1922e3118ad7SLiad Kaufman if (vif->type == NL80211_IFTYPE_STATION && 192394c3e614SSara Sharon mvmvif->ap_sta_id == sta_id) { 1924e3118ad7SLiad Kaufman /* if associated - we can't remove the AP STA now */ 1925e705c121SKalle Valo if (vif->bss_conf.assoc) 1926e705c121SKalle Valo return ret; 1927e705c121SKalle Valo 1928e705c121SKalle Valo /* unassoc - go ahead - remove the AP STA now */ 19290ae98812SSara Sharon mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1930e705c121SKalle Valo } 1931e705c121SKalle Valo 1932e705c121SKalle Valo /* 1933e705c121SKalle Valo * This shouldn't happen - the TDLS channel switch should be canceled 1934e705c121SKalle Valo * before the STA is removed. 1935e705c121SKalle Valo */ 193694c3e614SSara Sharon if (WARN_ON_ONCE(mvm->tdls_cs.peer.sta_id == sta_id)) { 19370ae98812SSara Sharon mvm->tdls_cs.peer.sta_id = IWL_MVM_INVALID_STA; 1938e705c121SKalle Valo cancel_delayed_work(&mvm->tdls_cs.dwork); 1939e705c121SKalle Valo } 1940e705c121SKalle Valo 1941e705c121SKalle Valo /* 1942e705c121SKalle Valo * Make sure that the tx response code sees the station as -EBUSY and 1943e705c121SKalle Valo * calls the drain worker. 1944e705c121SKalle Valo */ 1945e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 1946e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 1947e705c121SKalle Valo 1948e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvm_sta->sta_id); 1949e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[mvm_sta->sta_id], NULL); 1950e705c121SKalle Valo 1951e705c121SKalle Valo return ret; 1952e705c121SKalle Valo } 1953e705c121SKalle Valo 1954e705c121SKalle Valo int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm, 1955e705c121SKalle Valo struct ieee80211_vif *vif, 1956e705c121SKalle Valo u8 sta_id) 1957e705c121SKalle Valo { 1958e705c121SKalle Valo int ret = iwl_mvm_rm_sta_common(mvm, sta_id); 1959e705c121SKalle Valo 1960e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1961e705c121SKalle Valo 1962e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], NULL); 1963e705c121SKalle Valo return ret; 1964e705c121SKalle Valo } 1965e705c121SKalle Valo 19660e39eb03SChaya Rachel Ivgi int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, 1967e705c121SKalle Valo struct iwl_mvm_int_sta *sta, 1968ced19f26SSara Sharon u32 qmask, enum nl80211_iftype iftype, 1969ced19f26SSara Sharon enum iwl_sta_type type) 1970e705c121SKalle Valo { 1971df65c8d1SAvraham Stern if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1972df65c8d1SAvraham Stern sta->sta_id == IWL_MVM_INVALID_STA) { 1973e705c121SKalle Valo sta->sta_id = iwl_mvm_find_free_sta_id(mvm, iftype); 19740ae98812SSara Sharon if (WARN_ON_ONCE(sta->sta_id == IWL_MVM_INVALID_STA)) 1975e705c121SKalle Valo return -ENOSPC; 1976e705c121SKalle Valo } 1977e705c121SKalle Valo 1978e705c121SKalle Valo sta->tfd_queue_msk = qmask; 1979ced19f26SSara Sharon sta->type = type; 1980e705c121SKalle Valo 1981e705c121SKalle Valo /* put a non-NULL value so iterating over the stations won't stop */ 1982e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta->sta_id], ERR_PTR(-EINVAL)); 1983e705c121SKalle Valo return 0; 1984e705c121SKalle Valo } 1985e705c121SKalle Valo 198626d6c16bSSara Sharon void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta) 1987e705c121SKalle Valo { 1988e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta->sta_id], NULL); 1989e705c121SKalle Valo memset(sta, 0, sizeof(struct iwl_mvm_int_sta)); 19900ae98812SSara Sharon sta->sta_id = IWL_MVM_INVALID_STA; 1991e705c121SKalle Valo } 1992e705c121SKalle Valo 199391cf5dedSJohannes Berg static void iwl_mvm_enable_aux_snif_queue(struct iwl_mvm *mvm, u16 queue, 1994b13f43a4SEmmanuel Grumbach u8 sta_id, u8 fifo) 1995e705c121SKalle Valo { 19969617040eSEmmanuel Grumbach unsigned int wdg_timeout = 19979617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout; 199828d0793eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 1999b13f43a4SEmmanuel Grumbach .fifo = fifo, 2000b13f43a4SEmmanuel Grumbach .sta_id = sta_id, 200128d0793eSLiad Kaufman .tid = IWL_MAX_TID_COUNT, 200228d0793eSLiad Kaufman .aggregate = false, 200328d0793eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 200428d0793eSLiad Kaufman }; 200528d0793eSLiad Kaufman 200691cf5dedSJohannes Berg WARN_ON(iwl_mvm_has_new_tx_api(mvm)); 200791cf5dedSJohannes Berg 200891cf5dedSJohannes Berg iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 200928d0793eSLiad Kaufman } 201091cf5dedSJohannes Berg 201191cf5dedSJohannes Berg static int iwl_mvm_enable_aux_snif_queue_tvqm(struct iwl_mvm *mvm, u8 sta_id) 201291cf5dedSJohannes Berg { 20139617040eSEmmanuel Grumbach unsigned int wdg_timeout = 20149617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout; 201591cf5dedSJohannes Berg 201691cf5dedSJohannes Berg WARN_ON(!iwl_mvm_has_new_tx_api(mvm)); 201791cf5dedSJohannes Berg 201891cf5dedSJohannes Berg return iwl_mvm_tvqm_enable_txq(mvm, sta_id, IWL_MAX_TID_COUNT, 201991cf5dedSJohannes Berg wdg_timeout); 202091cf5dedSJohannes Berg } 202191cf5dedSJohannes Berg 202291cf5dedSJohannes Berg static int iwl_mvm_add_int_sta_with_queue(struct iwl_mvm *mvm, int macidx, 2023be82ecd3SAvraham Stern int maccolor, u8 *addr, 202491cf5dedSJohannes Berg struct iwl_mvm_int_sta *sta, 202591cf5dedSJohannes Berg u16 *queue, int fifo) 202691cf5dedSJohannes Berg { 202791cf5dedSJohannes Berg int ret; 202891cf5dedSJohannes Berg 202991cf5dedSJohannes Berg /* Map queue to fifo - needs to happen before adding station */ 203091cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) 203191cf5dedSJohannes Berg iwl_mvm_enable_aux_snif_queue(mvm, *queue, sta->sta_id, fifo); 203291cf5dedSJohannes Berg 2033be82ecd3SAvraham Stern ret = iwl_mvm_add_int_sta_common(mvm, sta, addr, macidx, maccolor); 203491cf5dedSJohannes Berg if (ret) { 203591cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) 203691cf5dedSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, *queue, 203791cf5dedSJohannes Berg IWL_MAX_TID_COUNT, 0); 203891cf5dedSJohannes Berg return ret; 203991cf5dedSJohannes Berg } 204091cf5dedSJohannes Berg 204191cf5dedSJohannes Berg /* 204291cf5dedSJohannes Berg * For 22000 firmware and on we cannot add queue to a station unknown 204391cf5dedSJohannes Berg * to firmware so enable queue here - after the station was added 204491cf5dedSJohannes Berg */ 204591cf5dedSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) { 204691cf5dedSJohannes Berg int txq; 204791cf5dedSJohannes Berg 204891cf5dedSJohannes Berg txq = iwl_mvm_enable_aux_snif_queue_tvqm(mvm, sta->sta_id); 204991cf5dedSJohannes Berg if (txq < 0) { 205091cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, sta->sta_id); 205191cf5dedSJohannes Berg return txq; 205291cf5dedSJohannes Berg } 205391cf5dedSJohannes Berg 205491cf5dedSJohannes Berg *queue = txq; 205591cf5dedSJohannes Berg } 205691cf5dedSJohannes Berg 205791cf5dedSJohannes Berg return 0; 2058c5a719eeSSara Sharon } 2059c5a719eeSSara Sharon 20602c2c3647SNathan Errera int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm, u32 lmac_id) 2061c5a719eeSSara Sharon { 2062c5a719eeSSara Sharon int ret; 2063c5a719eeSSara Sharon 2064c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2065c5a719eeSSara Sharon 2066c5a719eeSSara Sharon /* Allocate aux station and assign to it the aux queue */ 2067c5a719eeSSara Sharon ret = iwl_mvm_allocate_int_sta(mvm, &mvm->aux_sta, BIT(mvm->aux_queue), 2068ced19f26SSara Sharon NL80211_IFTYPE_UNSPECIFIED, 2069ced19f26SSara Sharon IWL_STA_AUX_ACTIVITY); 2070c5a719eeSSara Sharon if (ret) 2071c5a719eeSSara Sharon return ret; 2072c5a719eeSSara Sharon 20732c2c3647SNathan Errera /* 20742c2c3647SNathan Errera * In CDB NICs we need to specify which lmac to use for aux activity 20752c2c3647SNathan Errera * using the mac_id argument place to send lmac_id to the function 20762c2c3647SNathan Errera */ 20772c2c3647SNathan Errera ret = iwl_mvm_add_int_sta_with_queue(mvm, lmac_id, 0, NULL, 207891cf5dedSJohannes Berg &mvm->aux_sta, &mvm->aux_queue, 2079b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_MCAST); 2080c5a719eeSSara Sharon if (ret) { 2081e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2082e705c121SKalle Valo return ret; 2083e705c121SKalle Valo } 2084e705c121SKalle Valo 2085c5a719eeSSara Sharon return 0; 2086c5a719eeSSara Sharon } 2087c5a719eeSSara Sharon 20880e39eb03SChaya Rachel Ivgi int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 20890e39eb03SChaya Rachel Ivgi { 20900e39eb03SChaya Rachel Ivgi struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 20910e39eb03SChaya Rachel Ivgi 20920e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 2093b13f43a4SEmmanuel Grumbach 209491cf5dedSJohannes Berg return iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id, mvmvif->color, 2095be82ecd3SAvraham Stern NULL, &mvm->snif_sta, 2096be82ecd3SAvraham Stern &mvm->snif_queue, 2097b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_BE); 20980e39eb03SChaya Rachel Ivgi } 20990e39eb03SChaya Rachel Ivgi 21000e39eb03SChaya Rachel Ivgi int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 21010e39eb03SChaya Rachel Ivgi { 21020e39eb03SChaya Rachel Ivgi int ret; 21030e39eb03SChaya Rachel Ivgi 21040e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex); 21050e39eb03SChaya Rachel Ivgi 2106cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, NULL, mvm->snif_queue, IWL_MAX_TID_COUNT, 0); 21070e39eb03SChaya Rachel Ivgi ret = iwl_mvm_rm_sta_common(mvm, mvm->snif_sta.sta_id); 21080e39eb03SChaya Rachel Ivgi if (ret) 21090e39eb03SChaya Rachel Ivgi IWL_WARN(mvm, "Failed sending remove station\n"); 21100e39eb03SChaya Rachel Ivgi 21110e39eb03SChaya Rachel Ivgi return ret; 21120e39eb03SChaya Rachel Ivgi } 21130e39eb03SChaya Rachel Ivgi 2114f327236dSSharon int iwl_mvm_rm_aux_sta(struct iwl_mvm *mvm) 2115f327236dSSharon { 2116f327236dSSharon int ret; 2117f327236dSSharon 2118f327236dSSharon lockdep_assert_held(&mvm->mutex); 2119f327236dSSharon 2120f327236dSSharon iwl_mvm_disable_txq(mvm, NULL, mvm->aux_queue, IWL_MAX_TID_COUNT, 0); 2121f327236dSSharon ret = iwl_mvm_rm_sta_common(mvm, mvm->aux_sta.sta_id); 2122f327236dSSharon if (ret) 2123f327236dSSharon IWL_WARN(mvm, "Failed sending remove station\n"); 2124f327236dSSharon iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); 2125f327236dSSharon 2126f327236dSSharon return ret; 2127f327236dSSharon } 2128f327236dSSharon 21290e39eb03SChaya Rachel Ivgi void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm) 21300e39eb03SChaya Rachel Ivgi { 21310e39eb03SChaya Rachel Ivgi iwl_mvm_dealloc_int_sta(mvm, &mvm->snif_sta); 21320e39eb03SChaya Rachel Ivgi } 21330e39eb03SChaya Rachel Ivgi 2134e705c121SKalle Valo /* 2135e705c121SKalle Valo * Send the add station command for the vif's broadcast station. 2136e705c121SKalle Valo * Assumes that the station was already allocated. 2137e705c121SKalle Valo * 2138e705c121SKalle Valo * @mvm: the mvm component 2139e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2140e705c121SKalle Valo * @bsta: the broadcast station to add. 2141e705c121SKalle Valo */ 2142e705c121SKalle Valo int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2143e705c121SKalle Valo { 2144e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2145e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 2146e705c121SKalle Valo static const u8 _baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; 2147e705c121SKalle Valo const u8 *baddr = _baddr; 21487daa7624SJohannes Berg int queue; 2149df88c08dSLiad Kaufman int ret; 2150c5a719eeSSara Sharon unsigned int wdg_timeout = 2151c5a719eeSSara Sharon iwl_mvm_get_wd_timeout(mvm, vif, false, false); 2152de24f638SLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = { 2153de24f638SLiad Kaufman .fifo = IWL_MVM_TX_FIFO_VO, 2154de24f638SLiad Kaufman .sta_id = mvmvif->bcast_sta.sta_id, 2155de24f638SLiad Kaufman .tid = IWL_MAX_TID_COUNT, 2156de24f638SLiad Kaufman .aggregate = false, 2157de24f638SLiad Kaufman .frame_limit = IWL_FRAME_LIMIT, 2158de24f638SLiad Kaufman }; 2159de24f638SLiad Kaufman 2160c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex); 2161c5a719eeSSara Sharon 2162c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) { 21634d339989SLiad Kaufman if (vif->type == NL80211_IFTYPE_AP || 2164f8510d67SNathan Chancellor vif->type == NL80211_IFTYPE_ADHOC) { 216549f71713SSara Sharon queue = mvm->probe_queue; 2166f8510d67SNathan Chancellor } else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 216749f71713SSara Sharon queue = mvm->p2p_dev_queue; 2168f8510d67SNathan Chancellor } else { 2169f8510d67SNathan Chancellor WARN(1, "Missing required TXQ for adding bcast STA\n"); 2170de24f638SLiad Kaufman return -EINVAL; 2171f8510d67SNathan Chancellor } 2172de24f638SLiad Kaufman 2173df88c08dSLiad Kaufman bsta->tfd_queue_msk |= BIT(queue); 2174c5a719eeSSara Sharon 2175cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); 2176de24f638SLiad Kaufman } 2177de24f638SLiad Kaufman 2178e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_ADHOC) 2179e705c121SKalle Valo baddr = vif->bss_conf.bssid; 2180e705c121SKalle Valo 21810ae98812SSara Sharon if (WARN_ON_ONCE(bsta->sta_id == IWL_MVM_INVALID_STA)) 2182e705c121SKalle Valo return -ENOSPC; 2183e705c121SKalle Valo 2184df88c08dSLiad Kaufman ret = iwl_mvm_add_int_sta_common(mvm, bsta, baddr, 2185e705c121SKalle Valo mvmvif->id, mvmvif->color); 2186df88c08dSLiad Kaufman if (ret) 2187df88c08dSLiad Kaufman return ret; 2188df88c08dSLiad Kaufman 2189df88c08dSLiad Kaufman /* 21902f7a3863SLuca Coelho * For 22000 firmware and on we cannot add queue to a station unknown 2191c5a719eeSSara Sharon * to firmware so enable queue here - after the station was added 2192df88c08dSLiad Kaufman */ 2193310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 2194cfbc6c4cSSara Sharon queue = iwl_mvm_tvqm_enable_txq(mvm, bsta->sta_id, 2195310181ecSSara Sharon IWL_MAX_TID_COUNT, 2196c5a719eeSSara Sharon wdg_timeout); 219791cf5dedSJohannes Berg if (queue < 0) { 219891cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, bsta->sta_id); 219991cf5dedSJohannes Berg return queue; 220091cf5dedSJohannes Berg } 22017daa7624SJohannes Berg 22027b758a11SLuca Coelho if (vif->type == NL80211_IFTYPE_AP || 22037b758a11SLuca Coelho vif->type == NL80211_IFTYPE_ADHOC) 2204310181ecSSara Sharon mvm->probe_queue = queue; 2205310181ecSSara Sharon else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 2206310181ecSSara Sharon mvm->p2p_dev_queue = queue; 2207310181ecSSara Sharon } 2208df88c08dSLiad Kaufman 2209df88c08dSLiad Kaufman return 0; 2210df88c08dSLiad Kaufman } 2211df88c08dSLiad Kaufman 2212df88c08dSLiad Kaufman static void iwl_mvm_free_bcast_sta_queues(struct iwl_mvm *mvm, 2213df88c08dSLiad Kaufman struct ieee80211_vif *vif) 2214df88c08dSLiad Kaufman { 2215df88c08dSLiad Kaufman struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2216d167e81aSMordechai Goodstein int queue; 2217df88c08dSLiad Kaufman 2218df88c08dSLiad Kaufman lockdep_assert_held(&mvm->mutex); 2219df88c08dSLiad Kaufman 2220f9084775SNathan Errera iwl_mvm_flush_sta(mvm, &mvmvif->bcast_sta, true); 2221d49394a1SSara Sharon 2222d167e81aSMordechai Goodstein switch (vif->type) { 2223d167e81aSMordechai Goodstein case NL80211_IFTYPE_AP: 2224d167e81aSMordechai Goodstein case NL80211_IFTYPE_ADHOC: 2225d167e81aSMordechai Goodstein queue = mvm->probe_queue; 2226d167e81aSMordechai Goodstein break; 2227d167e81aSMordechai Goodstein case NL80211_IFTYPE_P2P_DEVICE: 2228d167e81aSMordechai Goodstein queue = mvm->p2p_dev_queue; 2229d167e81aSMordechai Goodstein break; 2230d167e81aSMordechai Goodstein default: 2231d167e81aSMordechai Goodstein WARN(1, "Can't free bcast queue on vif type %d\n", 2232d167e81aSMordechai Goodstein vif->type); 2233d167e81aSMordechai Goodstein return; 2234df88c08dSLiad Kaufman } 2235df88c08dSLiad Kaufman 2236cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, NULL, queue, IWL_MAX_TID_COUNT, 0); 2237d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) 2238d167e81aSMordechai Goodstein return; 2239d167e81aSMordechai Goodstein 2240d167e81aSMordechai Goodstein WARN_ON(!(mvmvif->bcast_sta.tfd_queue_msk & BIT(queue))); 2241d167e81aSMordechai Goodstein mvmvif->bcast_sta.tfd_queue_msk &= ~BIT(queue); 2242e705c121SKalle Valo } 2243e705c121SKalle Valo 2244e705c121SKalle Valo /* Send the FW a request to remove the station from it's internal data 2245e705c121SKalle Valo * structures, but DO NOT remove the entry from the local data structures. */ 2246e705c121SKalle Valo int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2247e705c121SKalle Valo { 2248e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2249e705c121SKalle Valo int ret; 2250e705c121SKalle Valo 2251e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2252e705c121SKalle Valo 2253df88c08dSLiad Kaufman iwl_mvm_free_bcast_sta_queues(mvm, vif); 2254df88c08dSLiad Kaufman 2255e705c121SKalle Valo ret = iwl_mvm_rm_sta_common(mvm, mvmvif->bcast_sta.sta_id); 2256e705c121SKalle Valo if (ret) 2257e705c121SKalle Valo IWL_WARN(mvm, "Failed sending remove station\n"); 2258e705c121SKalle Valo return ret; 2259e705c121SKalle Valo } 2260e705c121SKalle Valo 2261e705c121SKalle Valo int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2262e705c121SKalle Valo { 2263e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2264e705c121SKalle Valo 2265e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2266e705c121SKalle Valo 2267c8f54701SJohannes Berg return iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, 0, 2268ced19f26SSara Sharon ieee80211_vif_type_p2p(vif), 2269ced19f26SSara Sharon IWL_STA_GENERAL_PURPOSE); 2270e705c121SKalle Valo } 2271e705c121SKalle Valo 2272e705c121SKalle Valo /* Allocate a new station entry for the broadcast station to the given vif, 2273e705c121SKalle Valo * and send it to the FW. 2274e705c121SKalle Valo * Note that each P2P mac should have its own broadcast station. 2275e705c121SKalle Valo * 2276e705c121SKalle Valo * @mvm: the mvm component 2277e705c121SKalle Valo * @vif: the interface to which the broadcast station is added 2278e705c121SKalle Valo * @bsta: the broadcast station to add. */ 2279d197358bSLuca Coelho int iwl_mvm_add_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2280e705c121SKalle Valo { 2281e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2282e705c121SKalle Valo struct iwl_mvm_int_sta *bsta = &mvmvif->bcast_sta; 2283e705c121SKalle Valo int ret; 2284e705c121SKalle Valo 2285e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2286e705c121SKalle Valo 2287e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 2288e705c121SKalle Valo if (ret) 2289e705c121SKalle Valo return ret; 2290e705c121SKalle Valo 2291e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2292e705c121SKalle Valo 2293e705c121SKalle Valo if (ret) 2294e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, bsta); 2295e705c121SKalle Valo 2296e705c121SKalle Valo return ret; 2297e705c121SKalle Valo } 2298e705c121SKalle Valo 2299e705c121SKalle Valo void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2300e705c121SKalle Valo { 2301e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2302e705c121SKalle Valo 2303e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta); 2304e705c121SKalle Valo } 2305e705c121SKalle Valo 2306e705c121SKalle Valo /* 2307e705c121SKalle Valo * Send the FW a request to remove the station from it's internal data 2308e705c121SKalle Valo * structures, and in addition remove it from the local data structure. 2309e705c121SKalle Valo */ 2310d197358bSLuca Coelho int iwl_mvm_rm_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2311e705c121SKalle Valo { 2312e705c121SKalle Valo int ret; 2313e705c121SKalle Valo 2314e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2315e705c121SKalle Valo 2316e705c121SKalle Valo ret = iwl_mvm_send_rm_bcast_sta(mvm, vif); 2317e705c121SKalle Valo 2318e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif); 2319e705c121SKalle Valo 2320e705c121SKalle Valo return ret; 2321e705c121SKalle Valo } 2322e705c121SKalle Valo 232326d6c16bSSara Sharon /* 232426d6c16bSSara Sharon * Allocate a new station entry for the multicast station to the given vif, 232526d6c16bSSara Sharon * and send it to the FW. 232626d6c16bSSara Sharon * Note that each AP/GO mac should have its own multicast station. 232726d6c16bSSara Sharon * 232826d6c16bSSara Sharon * @mvm: the mvm component 232926d6c16bSSara Sharon * @vif: the interface to which the multicast station is added 233026d6c16bSSara Sharon */ 233126d6c16bSSara Sharon int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 233226d6c16bSSara Sharon { 233326d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 233426d6c16bSSara Sharon struct iwl_mvm_int_sta *msta = &mvmvif->mcast_sta; 233526d6c16bSSara Sharon static const u8 _maddr[] = {0x03, 0x00, 0x00, 0x00, 0x00, 0x00}; 233626d6c16bSSara Sharon const u8 *maddr = _maddr; 233726d6c16bSSara Sharon struct iwl_trans_txq_scd_cfg cfg = { 2338192a7e1fSJohannes Berg .fifo = vif->type == NL80211_IFTYPE_AP ? 2339192a7e1fSJohannes Berg IWL_MVM_TX_FIFO_MCAST : IWL_MVM_TX_FIFO_BE, 234026d6c16bSSara Sharon .sta_id = msta->sta_id, 23416508de03SIlan Peer .tid = 0, 234226d6c16bSSara Sharon .aggregate = false, 234326d6c16bSSara Sharon .frame_limit = IWL_FRAME_LIMIT, 234426d6c16bSSara Sharon }; 234526d6c16bSSara Sharon unsigned int timeout = iwl_mvm_get_wd_timeout(mvm, vif, false, false); 234626d6c16bSSara Sharon int ret; 234726d6c16bSSara Sharon 234826d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 234926d6c16bSSara Sharon 2350ee48b722SLiad Kaufman if (WARN_ON(vif->type != NL80211_IFTYPE_AP && 2351ee48b722SLiad Kaufman vif->type != NL80211_IFTYPE_ADHOC)) 235226d6c16bSSara Sharon return -ENOTSUPP; 235326d6c16bSSara Sharon 2354ced19f26SSara Sharon /* 2355fc07bd8cSSara Sharon * In IBSS, ieee80211_check_queues() sets the cab_queue to be 2356fc07bd8cSSara Sharon * invalid, so make sure we use the queue we want. 2357fc07bd8cSSara Sharon * Note that this is done here as we want to avoid making DQA 2358fc07bd8cSSara Sharon * changes in mac80211 layer. 2359fc07bd8cSSara Sharon */ 2360cfbc6c4cSSara Sharon if (vif->type == NL80211_IFTYPE_ADHOC) 2361cfbc6c4cSSara Sharon mvmvif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE; 2362fc07bd8cSSara Sharon 2363fc07bd8cSSara Sharon /* 2364ced19f26SSara Sharon * While in previous FWs we had to exclude cab queue from TFD queue 2365ced19f26SSara Sharon * mask, now it is needed as any other queue. 2366ced19f26SSara Sharon */ 2367ced19f26SSara Sharon if (!iwl_mvm_has_new_tx_api(mvm) && 2368ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2369cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, 2370cfbc6c4cSSara Sharon timeout); 2371cfbc6c4cSSara Sharon msta->tfd_queue_msk |= BIT(mvmvif->cab_queue); 2372ced19f26SSara Sharon } 237326d6c16bSSara Sharon ret = iwl_mvm_add_int_sta_common(mvm, msta, maddr, 237426d6c16bSSara Sharon mvmvif->id, mvmvif->color); 237591cf5dedSJohannes Berg if (ret) 237691cf5dedSJohannes Berg goto err; 237726d6c16bSSara Sharon 237826d6c16bSSara Sharon /* 237926d6c16bSSara Sharon * Enable cab queue after the ADD_STA command is sent. 23802f7a3863SLuca Coelho * This is needed for 22000 firmware which won't accept SCD_QUEUE_CFG 2381ced19f26SSara Sharon * command with unknown station id, and for FW that doesn't support 2382ced19f26SSara Sharon * station API since the cab queue is not included in the 2383ced19f26SSara Sharon * tfd_queue_mask. 238426d6c16bSSara Sharon */ 2385310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 2386cfbc6c4cSSara Sharon int queue = iwl_mvm_tvqm_enable_txq(mvm, msta->sta_id, 23876508de03SIlan Peer 0, 238826d6c16bSSara Sharon timeout); 238991cf5dedSJohannes Berg if (queue < 0) { 239091cf5dedSJohannes Berg ret = queue; 239191cf5dedSJohannes Berg goto err; 239291cf5dedSJohannes Berg } 2393e2af3fabSSara Sharon mvmvif->cab_queue = queue; 2394ced19f26SSara Sharon } else if (!fw_has_api(&mvm->fw->ucode_capa, 2395fc07bd8cSSara Sharon IWL_UCODE_TLV_API_STA_TYPE)) 2396cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, 2397cfbc6c4cSSara Sharon timeout); 239826d6c16bSSara Sharon 239926d6c16bSSara Sharon return 0; 240091cf5dedSJohannes Berg err: 240191cf5dedSJohannes Berg iwl_mvm_dealloc_int_sta(mvm, msta); 240291cf5dedSJohannes Berg return ret; 240326d6c16bSSara Sharon } 240426d6c16bSSara Sharon 240528916a16SEmmanuel Grumbach static int __iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, u8 sta_id, 240628916a16SEmmanuel Grumbach struct ieee80211_key_conf *keyconf, 240728916a16SEmmanuel Grumbach bool mcast) 240828916a16SEmmanuel Grumbach { 240928916a16SEmmanuel Grumbach union { 241028916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 241128916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd cmd; 241228916a16SEmmanuel Grumbach } u = {}; 241328916a16SEmmanuel Grumbach bool new_api = fw_has_api(&mvm->fw->ucode_capa, 241428916a16SEmmanuel Grumbach IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 241528916a16SEmmanuel Grumbach __le16 key_flags; 241628916a16SEmmanuel Grumbach int ret, size; 241728916a16SEmmanuel Grumbach u32 status; 241828916a16SEmmanuel Grumbach 241928916a16SEmmanuel Grumbach /* This is a valid situation for GTK removal */ 242028916a16SEmmanuel Grumbach if (sta_id == IWL_MVM_INVALID_STA) 242128916a16SEmmanuel Grumbach return 0; 242228916a16SEmmanuel Grumbach 242328916a16SEmmanuel Grumbach key_flags = cpu_to_le16((keyconf->keyidx << STA_KEY_FLG_KEYID_POS) & 242428916a16SEmmanuel Grumbach STA_KEY_FLG_KEYID_MSK); 242528916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_FLG_NO_ENC | STA_KEY_FLG_WEP_KEY_MAP); 242628916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_NOT_VALID); 242728916a16SEmmanuel Grumbach 242828916a16SEmmanuel Grumbach if (mcast) 242928916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 243028916a16SEmmanuel Grumbach 243128916a16SEmmanuel Grumbach /* 243228916a16SEmmanuel Grumbach * The fields assigned here are in the same location at the start 243328916a16SEmmanuel Grumbach * of the command, so we can do this union trick. 243428916a16SEmmanuel Grumbach */ 243528916a16SEmmanuel Grumbach u.cmd.common.key_flags = key_flags; 243628916a16SEmmanuel Grumbach u.cmd.common.key_offset = keyconf->hw_key_idx; 243728916a16SEmmanuel Grumbach u.cmd.common.sta_id = sta_id; 243828916a16SEmmanuel Grumbach 243928916a16SEmmanuel Grumbach size = new_api ? sizeof(u.cmd) : sizeof(u.cmd_v1); 244028916a16SEmmanuel Grumbach 244128916a16SEmmanuel Grumbach status = ADD_STA_SUCCESS; 244228916a16SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, &u.cmd, 244328916a16SEmmanuel Grumbach &status); 244428916a16SEmmanuel Grumbach 244528916a16SEmmanuel Grumbach switch (status) { 244628916a16SEmmanuel Grumbach case ADD_STA_SUCCESS: 244728916a16SEmmanuel Grumbach IWL_DEBUG_WEP(mvm, "MODIFY_STA: remove sta key passed\n"); 244828916a16SEmmanuel Grumbach break; 244928916a16SEmmanuel Grumbach default: 245028916a16SEmmanuel Grumbach ret = -EIO; 245128916a16SEmmanuel Grumbach IWL_ERR(mvm, "MODIFY_STA: remove sta key failed\n"); 245228916a16SEmmanuel Grumbach break; 245328916a16SEmmanuel Grumbach } 245428916a16SEmmanuel Grumbach 245528916a16SEmmanuel Grumbach return ret; 245628916a16SEmmanuel Grumbach } 245728916a16SEmmanuel Grumbach 245826d6c16bSSara Sharon /* 245926d6c16bSSara Sharon * Send the FW a request to remove the station from it's internal data 246026d6c16bSSara Sharon * structures, and in addition remove it from the local data structure. 246126d6c16bSSara Sharon */ 246226d6c16bSSara Sharon int iwl_mvm_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 246326d6c16bSSara Sharon { 246426d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 246526d6c16bSSara Sharon int ret; 246626d6c16bSSara Sharon 246726d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex); 246826d6c16bSSara Sharon 2469f9084775SNathan Errera iwl_mvm_flush_sta(mvm, &mvmvif->mcast_sta, true); 2470d49394a1SSara Sharon 2471cfbc6c4cSSara Sharon iwl_mvm_disable_txq(mvm, NULL, mvmvif->cab_queue, 0, 0); 247226d6c16bSSara Sharon 247326d6c16bSSara Sharon ret = iwl_mvm_rm_sta_common(mvm, mvmvif->mcast_sta.sta_id); 247426d6c16bSSara Sharon if (ret) 247526d6c16bSSara Sharon IWL_WARN(mvm, "Failed sending remove station\n"); 247626d6c16bSSara Sharon 247726d6c16bSSara Sharon return ret; 247826d6c16bSSara Sharon } 247926d6c16bSSara Sharon 2480e705c121SKalle Valo #define IWL_MAX_RX_BA_SESSIONS 16 2481e705c121SKalle Valo 2482b915c101SSara Sharon static void iwl_mvm_sync_rxq_del_ba(struct iwl_mvm *mvm, u8 baid) 248310b2b201SSara Sharon { 24846b2dbce5SEmmanuel Grumbach struct iwl_mvm_rss_sync_notif notif = { 2485b915c101SSara Sharon .metadata.type = IWL_MVM_RXQ_NOTIF_DEL_BA, 2486b915c101SSara Sharon .metadata.sync = 1, 2487b915c101SSara Sharon .delba.baid = baid, 2488b915c101SSara Sharon }; 2489b915c101SSara Sharon iwl_mvm_sync_rx_queues_internal(mvm, (void *)¬if, sizeof(notif)); 249010b2b201SSara Sharon }; 249110b2b201SSara Sharon 2492b915c101SSara Sharon static void iwl_mvm_free_reorder(struct iwl_mvm *mvm, 2493b915c101SSara Sharon struct iwl_mvm_baid_data *data) 2494b915c101SSara Sharon { 2495b915c101SSara Sharon int i; 2496b915c101SSara Sharon 2497b915c101SSara Sharon iwl_mvm_sync_rxq_del_ba(mvm, data->baid); 2498b915c101SSara Sharon 2499b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2500b915c101SSara Sharon int j; 2501b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2502b915c101SSara Sharon &data->reorder_buf[i]; 2503dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2504dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2505b915c101SSara Sharon 25060690405fSSara Sharon spin_lock_bh(&reorder_buf->lock); 25070690405fSSara Sharon if (likely(!reorder_buf->num_stored)) { 25080690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 2509b915c101SSara Sharon continue; 25100690405fSSara Sharon } 2511b915c101SSara Sharon 2512b915c101SSara Sharon /* 2513b915c101SSara Sharon * This shouldn't happen in regular DELBA since the internal 2514b915c101SSara Sharon * delBA notification should trigger a release of all frames in 2515b915c101SSara Sharon * the reorder buffer. 2516b915c101SSara Sharon */ 2517b915c101SSara Sharon WARN_ON(1); 2518b915c101SSara Sharon 2519b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2520dfdddd92SJohannes Berg __skb_queue_purge(&entries[j].e.frames); 25210690405fSSara Sharon /* 25220690405fSSara Sharon * Prevent timer re-arm. This prevents a very far fetched case 25230690405fSSara Sharon * where we timed out on the notification. There may be prior 25240690405fSSara Sharon * RX frames pending in the RX queue before the notification 25250690405fSSara Sharon * that might get processed between now and the actual deletion 25260690405fSSara Sharon * and we would re-arm the timer although we are deleting the 25270690405fSSara Sharon * reorder buffer. 25280690405fSSara Sharon */ 25290690405fSSara Sharon reorder_buf->removed = true; 25300690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock); 25310690405fSSara Sharon del_timer_sync(&reorder_buf->reorder_timer); 2532b915c101SSara Sharon } 2533b915c101SSara Sharon } 2534b915c101SSara Sharon 2535b915c101SSara Sharon static void iwl_mvm_init_reorder_buffer(struct iwl_mvm *mvm, 2536b915c101SSara Sharon struct iwl_mvm_baid_data *data, 2537514c3069SLuca Coelho u16 ssn, u16 buf_size) 2538b915c101SSara Sharon { 2539b915c101SSara Sharon int i; 2540b915c101SSara Sharon 2541b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) { 2542b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf = 2543b915c101SSara Sharon &data->reorder_buf[i]; 2544dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries = 2545dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue]; 2546b915c101SSara Sharon int j; 2547b915c101SSara Sharon 2548b915c101SSara Sharon reorder_buf->num_stored = 0; 2549b915c101SSara Sharon reorder_buf->head_sn = ssn; 2550b915c101SSara Sharon reorder_buf->buf_size = buf_size; 25510690405fSSara Sharon /* rx reorder timer */ 25528cef5344SKees Cook timer_setup(&reorder_buf->reorder_timer, 25538cef5344SKees Cook iwl_mvm_reorder_timer_expired, 0); 25540690405fSSara Sharon spin_lock_init(&reorder_buf->lock); 25550690405fSSara Sharon reorder_buf->mvm = mvm; 2556b915c101SSara Sharon reorder_buf->queue = i; 25575d43eab6SSara Sharon reorder_buf->valid = false; 2558b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++) 2559dfdddd92SJohannes Berg __skb_queue_head_init(&entries[j].e.frames); 2560b915c101SSara Sharon } 256110b2b201SSara Sharon } 256210b2b201SSara Sharon 2563e705c121SKalle Valo int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2564514c3069SLuca Coelho int tid, u16 ssn, bool start, u16 buf_size, u16 timeout) 2565e705c121SKalle Valo { 2566e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2567e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 256810b2b201SSara Sharon struct iwl_mvm_baid_data *baid_data = NULL; 2569e705c121SKalle Valo int ret; 2570e705c121SKalle Valo u32 status; 2571e705c121SKalle Valo 2572e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2573e705c121SKalle Valo 2574e705c121SKalle Valo if (start && mvm->rx_ba_sessions >= IWL_MAX_RX_BA_SESSIONS) { 2575e705c121SKalle Valo IWL_WARN(mvm, "Not enough RX BA SESSIONS\n"); 2576e705c121SKalle Valo return -ENOSPC; 2577e705c121SKalle Valo } 2578e705c121SKalle Valo 257910b2b201SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && start) { 2580dfdddd92SJohannes Berg u16 reorder_buf_size = buf_size * sizeof(baid_data->entries[0]); 2581dfdddd92SJohannes Berg 2582dfdddd92SJohannes Berg /* sparse doesn't like the __align() so don't check */ 2583dfdddd92SJohannes Berg #ifndef __CHECKER__ 2584dfdddd92SJohannes Berg /* 2585dfdddd92SJohannes Berg * The division below will be OK if either the cache line size 2586dfdddd92SJohannes Berg * can be divided by the entry size (ALIGN will round up) or if 2587dfdddd92SJohannes Berg * if the entry size can be divided by the cache line size, in 2588dfdddd92SJohannes Berg * which case the ALIGN() will do nothing. 2589dfdddd92SJohannes Berg */ 2590dfdddd92SJohannes Berg BUILD_BUG_ON(SMP_CACHE_BYTES % sizeof(baid_data->entries[0]) && 2591dfdddd92SJohannes Berg sizeof(baid_data->entries[0]) % SMP_CACHE_BYTES); 2592dfdddd92SJohannes Berg #endif 2593dfdddd92SJohannes Berg 2594dfdddd92SJohannes Berg /* 2595dfdddd92SJohannes Berg * Upward align the reorder buffer size to fill an entire cache 2596dfdddd92SJohannes Berg * line for each queue, to avoid sharing cache lines between 2597dfdddd92SJohannes Berg * different queues. 2598dfdddd92SJohannes Berg */ 2599dfdddd92SJohannes Berg reorder_buf_size = ALIGN(reorder_buf_size, SMP_CACHE_BYTES); 2600dfdddd92SJohannes Berg 260110b2b201SSara Sharon /* 260210b2b201SSara Sharon * Allocate here so if allocation fails we can bail out early 260310b2b201SSara Sharon * before starting the BA session in the firmware 260410b2b201SSara Sharon */ 2605b915c101SSara Sharon baid_data = kzalloc(sizeof(*baid_data) + 2606b915c101SSara Sharon mvm->trans->num_rx_queues * 2607dfdddd92SJohannes Berg reorder_buf_size, 2608b915c101SSara Sharon GFP_KERNEL); 260910b2b201SSara Sharon if (!baid_data) 261010b2b201SSara Sharon return -ENOMEM; 2611dfdddd92SJohannes Berg 2612dfdddd92SJohannes Berg /* 2613dfdddd92SJohannes Berg * This division is why we need the above BUILD_BUG_ON(), 2614dfdddd92SJohannes Berg * if that doesn't hold then this will not be right. 2615dfdddd92SJohannes Berg */ 2616dfdddd92SJohannes Berg baid_data->entries_per_queue = 2617dfdddd92SJohannes Berg reorder_buf_size / sizeof(baid_data->entries[0]); 261810b2b201SSara Sharon } 261910b2b201SSara Sharon 2620e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 2621e705c121SKalle Valo cmd.sta_id = mvm_sta->sta_id; 2622e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 2623e705c121SKalle Valo if (start) { 2624e705c121SKalle Valo cmd.add_immediate_ba_tid = (u8) tid; 2625e705c121SKalle Valo cmd.add_immediate_ba_ssn = cpu_to_le16(ssn); 2626514c3069SLuca Coelho cmd.rx_ba_window = cpu_to_le16(buf_size); 2627e705c121SKalle Valo } else { 2628e705c121SKalle Valo cmd.remove_immediate_ba_tid = (u8) tid; 2629e705c121SKalle Valo } 2630e705c121SKalle Valo cmd.modify_mask = start ? STA_MODIFY_ADD_BA_TID : 2631e705c121SKalle Valo STA_MODIFY_REMOVE_BA_TID; 2632e705c121SKalle Valo 2633e705c121SKalle Valo status = ADD_STA_SUCCESS; 2634854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 2635854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 2636e705c121SKalle Valo &cmd, &status); 2637e705c121SKalle Valo if (ret) 263810b2b201SSara Sharon goto out_free; 2639e705c121SKalle Valo 2640837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 2641e705c121SKalle Valo case ADD_STA_SUCCESS: 264235263a03SSara Sharon IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n", 2643e705c121SKalle Valo start ? "start" : "stopp"); 2644e705c121SKalle Valo break; 2645e705c121SKalle Valo case ADD_STA_IMMEDIATE_BA_FAILURE: 2646e705c121SKalle Valo IWL_WARN(mvm, "RX BA Session refused by fw\n"); 2647e705c121SKalle Valo ret = -ENOSPC; 2648e705c121SKalle Valo break; 2649e705c121SKalle Valo default: 2650e705c121SKalle Valo ret = -EIO; 2651e705c121SKalle Valo IWL_ERR(mvm, "RX BA Session failed %sing, status 0x%x\n", 2652e705c121SKalle Valo start ? "start" : "stopp", status); 2653e705c121SKalle Valo break; 2654e705c121SKalle Valo } 2655e705c121SKalle Valo 265610b2b201SSara Sharon if (ret) 265710b2b201SSara Sharon goto out_free; 265810b2b201SSara Sharon 265910b2b201SSara Sharon if (start) { 266010b2b201SSara Sharon u8 baid; 266110b2b201SSara Sharon 2662e705c121SKalle Valo mvm->rx_ba_sessions++; 266310b2b201SSara Sharon 266410b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 266510b2b201SSara Sharon return 0; 266610b2b201SSara Sharon 266710b2b201SSara Sharon if (WARN_ON(!(status & IWL_ADD_STA_BAID_VALID_MASK))) { 266810b2b201SSara Sharon ret = -EINVAL; 266910b2b201SSara Sharon goto out_free; 267010b2b201SSara Sharon } 267110b2b201SSara Sharon baid = (u8)((status & IWL_ADD_STA_BAID_MASK) >> 267210b2b201SSara Sharon IWL_ADD_STA_BAID_SHIFT); 267310b2b201SSara Sharon baid_data->baid = baid; 267410b2b201SSara Sharon baid_data->timeout = timeout; 267510b2b201SSara Sharon baid_data->last_rx = jiffies; 26768cef5344SKees Cook baid_data->rcu_ptr = &mvm->baid_map[baid]; 26778cef5344SKees Cook timer_setup(&baid_data->session_timer, 26788cef5344SKees Cook iwl_mvm_rx_agg_session_expired, 0); 267910b2b201SSara Sharon baid_data->mvm = mvm; 268010b2b201SSara Sharon baid_data->tid = tid; 268110b2b201SSara Sharon baid_data->sta_id = mvm_sta->sta_id; 268210b2b201SSara Sharon 268310b2b201SSara Sharon mvm_sta->tid_to_baid[tid] = baid; 268410b2b201SSara Sharon if (timeout) 268510b2b201SSara Sharon mod_timer(&baid_data->session_timer, 268610b2b201SSara Sharon TU_TO_EXP_TIME(timeout * 2)); 268710b2b201SSara Sharon 26883f1c4c58SSara Sharon iwl_mvm_init_reorder_buffer(mvm, baid_data, ssn, buf_size); 268910b2b201SSara Sharon /* 269010b2b201SSara Sharon * protect the BA data with RCU to cover a case where our 269110b2b201SSara Sharon * internal RX sync mechanism will timeout (not that it's 269210b2b201SSara Sharon * supposed to happen) and we will free the session data while 269310b2b201SSara Sharon * RX is being processed in parallel 269410b2b201SSara Sharon */ 269535263a03SSara Sharon IWL_DEBUG_HT(mvm, "Sta %d(%d) is assigned to BAID %d\n", 269635263a03SSara Sharon mvm_sta->sta_id, tid, baid); 269710b2b201SSara Sharon WARN_ON(rcu_access_pointer(mvm->baid_map[baid])); 269810b2b201SSara Sharon rcu_assign_pointer(mvm->baid_map[baid], baid_data); 269960dec523SSara Sharon } else { 270010b2b201SSara Sharon u8 baid = mvm_sta->tid_to_baid[tid]; 270110b2b201SSara Sharon 270260dec523SSara Sharon if (mvm->rx_ba_sessions > 0) 2703e705c121SKalle Valo /* check that restart flow didn't zero the counter */ 2704e705c121SKalle Valo mvm->rx_ba_sessions--; 270510b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 270610b2b201SSara Sharon return 0; 2707e705c121SKalle Valo 270810b2b201SSara Sharon if (WARN_ON(baid == IWL_RX_REORDER_DATA_INVALID_BAID)) 270910b2b201SSara Sharon return -EINVAL; 271010b2b201SSara Sharon 271110b2b201SSara Sharon baid_data = rcu_access_pointer(mvm->baid_map[baid]); 271210b2b201SSara Sharon if (WARN_ON(!baid_data)) 271310b2b201SSara Sharon return -EINVAL; 271410b2b201SSara Sharon 271510b2b201SSara Sharon /* synchronize all rx queues so we can safely delete */ 2716b915c101SSara Sharon iwl_mvm_free_reorder(mvm, baid_data); 271710b2b201SSara Sharon del_timer_sync(&baid_data->session_timer); 271810b2b201SSara Sharon RCU_INIT_POINTER(mvm->baid_map[baid], NULL); 271910b2b201SSara Sharon kfree_rcu(baid_data, rcu_head); 272035263a03SSara Sharon IWL_DEBUG_HT(mvm, "BAID %d is free\n", baid); 272110b2b201SSara Sharon } 272210b2b201SSara Sharon return 0; 272310b2b201SSara Sharon 272410b2b201SSara Sharon out_free: 272510b2b201SSara Sharon kfree(baid_data); 2726e705c121SKalle Valo return ret; 2727e705c121SKalle Valo } 2728e705c121SKalle Valo 27299794c64fSLiad Kaufman int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 2730e705c121SKalle Valo int tid, u8 queue, bool start) 2731e705c121SKalle Valo { 2732e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2733e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {}; 2734e705c121SKalle Valo int ret; 2735e705c121SKalle Valo u32 status; 2736e705c121SKalle Valo 2737e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2738e705c121SKalle Valo 2739e705c121SKalle Valo if (start) { 2740e705c121SKalle Valo mvm_sta->tfd_queue_msk |= BIT(queue); 2741e705c121SKalle Valo mvm_sta->tid_disable_agg &= ~BIT(tid); 2742e705c121SKalle Valo } else { 2743cf961e16SLiad Kaufman /* In DQA-mode the queue isn't removed on agg termination */ 2744e705c121SKalle Valo mvm_sta->tid_disable_agg |= BIT(tid); 2745e705c121SKalle Valo } 2746e705c121SKalle Valo 2747e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); 2748e705c121SKalle Valo cmd.sta_id = mvm_sta->sta_id; 2749e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY; 2750bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) 2751bb49701bSSara Sharon cmd.modify_mask = STA_MODIFY_QUEUES; 2752bb49701bSSara Sharon cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX; 2753e705c121SKalle Valo cmd.tfd_queue_msk = cpu_to_le32(mvm_sta->tfd_queue_msk); 2754e705c121SKalle Valo cmd.tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg); 2755e705c121SKalle Valo 2756e705c121SKalle Valo status = ADD_STA_SUCCESS; 2757854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, 2758854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), 2759e705c121SKalle Valo &cmd, &status); 2760e705c121SKalle Valo if (ret) 2761e705c121SKalle Valo return ret; 2762e705c121SKalle Valo 2763837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) { 2764e705c121SKalle Valo case ADD_STA_SUCCESS: 2765e705c121SKalle Valo break; 2766e705c121SKalle Valo default: 2767e705c121SKalle Valo ret = -EIO; 2768e705c121SKalle Valo IWL_ERR(mvm, "TX BA Session failed %sing, status 0x%x\n", 2769e705c121SKalle Valo start ? "start" : "stopp", status); 2770e705c121SKalle Valo break; 2771e705c121SKalle Valo } 2772e705c121SKalle Valo 2773e705c121SKalle Valo return ret; 2774e705c121SKalle Valo } 2775e705c121SKalle Valo 2776e705c121SKalle Valo const u8 tid_to_mac80211_ac[] = { 2777e705c121SKalle Valo IEEE80211_AC_BE, 2778e705c121SKalle Valo IEEE80211_AC_BK, 2779e705c121SKalle Valo IEEE80211_AC_BK, 2780e705c121SKalle Valo IEEE80211_AC_BE, 2781e705c121SKalle Valo IEEE80211_AC_VI, 2782e705c121SKalle Valo IEEE80211_AC_VI, 2783e705c121SKalle Valo IEEE80211_AC_VO, 2784e705c121SKalle Valo IEEE80211_AC_VO, 27859794c64fSLiad Kaufman IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 2786e705c121SKalle Valo }; 2787e705c121SKalle Valo 2788e705c121SKalle Valo static const u8 tid_to_ucode_ac[] = { 2789e705c121SKalle Valo AC_BE, 2790e705c121SKalle Valo AC_BK, 2791e705c121SKalle Valo AC_BK, 2792e705c121SKalle Valo AC_BE, 2793e705c121SKalle Valo AC_VI, 2794e705c121SKalle Valo AC_VI, 2795e705c121SKalle Valo AC_VO, 2796e705c121SKalle Valo AC_VO, 2797e705c121SKalle Valo }; 2798e705c121SKalle Valo 2799e705c121SKalle Valo int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2800e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 *ssn) 2801e705c121SKalle Valo { 2802e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2803e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 2804dd32162dSLiad Kaufman u16 normalized_ssn; 2805b0d795a9SMordechay Goodstein u16 txq_id; 2806e705c121SKalle Valo int ret; 2807e705c121SKalle Valo 2808e705c121SKalle Valo if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT)) 2809e705c121SKalle Valo return -EINVAL; 2810e705c121SKalle Valo 2811bd800e41SNaftali Goldstein if (mvmsta->tid_data[tid].state != IWL_AGG_QUEUED && 2812bd800e41SNaftali Goldstein mvmsta->tid_data[tid].state != IWL_AGG_OFF) { 2813bd800e41SNaftali Goldstein IWL_ERR(mvm, 2814bd800e41SNaftali Goldstein "Start AGG when state is not IWL_AGG_QUEUED or IWL_AGG_OFF %d!\n", 2815e705c121SKalle Valo mvmsta->tid_data[tid].state); 2816e705c121SKalle Valo return -ENXIO; 2817e705c121SKalle Valo } 2818e705c121SKalle Valo 2819e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2820e705c121SKalle Valo 2821bd8f3fc6SLiad Kaufman if (mvmsta->tid_data[tid].txq_id == IWL_MVM_INVALID_QUEUE && 2822bd8f3fc6SLiad Kaufman iwl_mvm_has_new_tx_api(mvm)) { 2823bd8f3fc6SLiad Kaufman u8 ac = tid_to_mac80211_ac[tid]; 2824bd8f3fc6SLiad Kaufman 2825bd8f3fc6SLiad Kaufman ret = iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid); 2826bd8f3fc6SLiad Kaufman if (ret) 2827bd8f3fc6SLiad Kaufman return ret; 2828bd8f3fc6SLiad Kaufman } 2829bd8f3fc6SLiad Kaufman 2830e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2831e705c121SKalle Valo 2832cf961e16SLiad Kaufman /* 2833cf961e16SLiad Kaufman * Note the possible cases: 28344a6d2e52SAvraham Stern * 1. An enabled TXQ - TXQ needs to become agg'ed 28354a6d2e52SAvraham Stern * 2. The TXQ hasn't yet been enabled, so find a free one and mark 28364a6d2e52SAvraham Stern * it as reserved 2837cf961e16SLiad Kaufman */ 2838cf961e16SLiad Kaufman txq_id = mvmsta->tid_data[tid].txq_id; 283934e10860SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) { 2840b0d795a9SMordechay Goodstein ret = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, 2841c8f54701SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE, 2842c8f54701SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE); 2843b0d795a9SMordechay Goodstein if (ret < 0) { 2844e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate agg queue\n"); 2845f3f240f9SJohannes Berg goto out; 2846e705c121SKalle Valo } 2847cf961e16SLiad Kaufman 2848b0d795a9SMordechay Goodstein txq_id = ret; 2849b0d795a9SMordechay Goodstein 2850cf961e16SLiad Kaufman /* TXQ hasn't yet been enabled, so mark it only as reserved */ 2851cf961e16SLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_RESERVED; 2852b0d795a9SMordechay Goodstein } else if (WARN_ON(txq_id >= IWL_MAX_HW_QUEUES)) { 2853b0d795a9SMordechay Goodstein ret = -ENXIO; 2854b0d795a9SMordechay Goodstein IWL_ERR(mvm, "tid_id %d out of range (0, %d)!\n", 2855b0d795a9SMordechay Goodstein tid, IWL_MAX_HW_QUEUES - 1); 2856b0d795a9SMordechay Goodstein goto out; 2857b0d795a9SMordechay Goodstein 28584a6d2e52SAvraham Stern } else if (unlikely(mvm->queue_info[txq_id].status == 28594a6d2e52SAvraham Stern IWL_MVM_QUEUE_SHARED)) { 28604a6d2e52SAvraham Stern ret = -ENXIO; 28614a6d2e52SAvraham Stern IWL_DEBUG_TX_QUEUES(mvm, 28624a6d2e52SAvraham Stern "Can't start tid %d agg on shared queue!\n", 28634a6d2e52SAvraham Stern tid); 2864f3f240f9SJohannes Berg goto out; 2865cf961e16SLiad Kaufman } 28669f9af3d7SLiad Kaufman 2867cf961e16SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, 2868cf961e16SLiad Kaufman "AGG for tid %d will be on queue #%d\n", 2869cf961e16SLiad Kaufman tid, txq_id); 2870cf961e16SLiad Kaufman 2871e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 2872e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 2873e705c121SKalle Valo tid_data->txq_id = txq_id; 2874e705c121SKalle Valo *ssn = tid_data->ssn; 2875e705c121SKalle Valo 2876e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 2877e705c121SKalle Valo "Start AGG: sta %d tid %d queue %d - ssn = %d, next_recl = %d\n", 2878e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->ssn, 2879e705c121SKalle Valo tid_data->next_reclaimed); 2880e705c121SKalle Valo 2881dd32162dSLiad Kaufman /* 28822f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 2883dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 2884dd32162dSLiad Kaufman */ 2885dd32162dSLiad Kaufman normalized_ssn = tid_data->ssn; 2886286ca8ebSLuca Coelho if (mvm->trans->trans_cfg->gen2) 2887dd32162dSLiad Kaufman normalized_ssn &= 0xff; 2888dd32162dSLiad Kaufman 2889dd32162dSLiad Kaufman if (normalized_ssn == tid_data->next_reclaimed) { 2890e705c121SKalle Valo tid_data->state = IWL_AGG_STARTING; 28912ce113deSJohannes Berg ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 2892e705c121SKalle Valo } else { 2893e705c121SKalle Valo tid_data->state = IWL_EMPTYING_HW_QUEUE_ADDBA; 28947e0ca723SMordechay Goodstein ret = IEEE80211_AMPDU_TX_START_DELAY_ADDBA; 28952ce113deSJohannes Berg } 2896e705c121SKalle Valo 28979f9af3d7SLiad Kaufman out: 2898e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2899e705c121SKalle Valo 2900e705c121SKalle Valo return ret; 2901e705c121SKalle Valo } 2902e705c121SKalle Valo 2903e705c121SKalle Valo int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2904514c3069SLuca Coelho struct ieee80211_sta *sta, u16 tid, u16 buf_size, 2905bb81bb68SEmmanuel Grumbach bool amsdu) 2906e705c121SKalle Valo { 2907e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2908e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2909e705c121SKalle Valo unsigned int wdg_timeout = 2910e705c121SKalle Valo iwl_mvm_get_wd_timeout(mvm, vif, sta->tdls, false); 2911eea76c36SEmmanuel Grumbach int queue, ret; 2912cf961e16SLiad Kaufman bool alloc_queue = true; 29139f9af3d7SLiad Kaufman enum iwl_mvm_queue_status queue_status; 2914e705c121SKalle Valo u16 ssn; 2915e705c121SKalle Valo 2916eea76c36SEmmanuel Grumbach struct iwl_trans_txq_scd_cfg cfg = { 2917eea76c36SEmmanuel Grumbach .sta_id = mvmsta->sta_id, 2918eea76c36SEmmanuel Grumbach .tid = tid, 2919eea76c36SEmmanuel Grumbach .frame_limit = buf_size, 2920eea76c36SEmmanuel Grumbach .aggregate = true, 2921eea76c36SEmmanuel Grumbach }; 2922eea76c36SEmmanuel Grumbach 2923ecaf71deSGregory Greenman /* 2924ecaf71deSGregory Greenman * When FW supports TLC_OFFLOAD, it also implements Tx aggregation 2925ecaf71deSGregory Greenman * manager, so this function should never be called in this case. 2926ecaf71deSGregory Greenman */ 29274243edb4SEmmanuel Grumbach if (WARN_ON_ONCE(iwl_mvm_has_tlc_offload(mvm))) 2928ecaf71deSGregory Greenman return -EINVAL; 2929ecaf71deSGregory Greenman 2930e705c121SKalle Valo BUILD_BUG_ON((sizeof(mvmsta->agg_tids) * BITS_PER_BYTE) 2931e705c121SKalle Valo != IWL_MAX_TID_COUNT); 2932e705c121SKalle Valo 2933e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2934e705c121SKalle Valo ssn = tid_data->ssn; 2935e705c121SKalle Valo queue = tid_data->txq_id; 2936e705c121SKalle Valo tid_data->state = IWL_AGG_ON; 2937e705c121SKalle Valo mvmsta->agg_tids |= BIT(tid); 2938e705c121SKalle Valo tid_data->ssn = 0xffff; 2939bb81bb68SEmmanuel Grumbach tid_data->amsdu_in_ampdu_allowed = amsdu; 2940e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2941e705c121SKalle Valo 294234e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 294334e10860SSara Sharon /* 29440ec9257bSSara Sharon * If there is no queue for this tid, iwl_mvm_sta_tx_agg_start() 29450ec9257bSSara Sharon * would have failed, so if we are here there is no need to 29460ec9257bSSara Sharon * allocate a queue. 29470ec9257bSSara Sharon * However, if aggregation size is different than the default 29480ec9257bSSara Sharon * size, the scheduler should be reconfigured. 29490ec9257bSSara Sharon * We cannot do this with the new TX API, so return unsupported 29500ec9257bSSara Sharon * for now, until it will be offloaded to firmware.. 29510ec9257bSSara Sharon * Note that if SCD default value changes - this condition 29520ec9257bSSara Sharon * should be updated as well. 295334e10860SSara Sharon */ 29540ec9257bSSara Sharon if (buf_size < IWL_FRAME_LIMIT) 295534e10860SSara Sharon return -ENOTSUPP; 295634e10860SSara Sharon 295734e10860SSara Sharon ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 295834e10860SSara Sharon if (ret) 295934e10860SSara Sharon return -EIO; 296034e10860SSara Sharon goto out; 296134e10860SSara Sharon } 296234e10860SSara Sharon 2963eea76c36SEmmanuel Grumbach cfg.fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; 2964e705c121SKalle Valo 29659f9af3d7SLiad Kaufman queue_status = mvm->queue_info[queue].status; 29669f9af3d7SLiad Kaufman 2967cf961e16SLiad Kaufman /* Maybe there is no need to even alloc a queue... */ 2968cf961e16SLiad Kaufman if (mvm->queue_info[queue].status == IWL_MVM_QUEUE_READY) 2969cf961e16SLiad Kaufman alloc_queue = false; 2970cf961e16SLiad Kaufman 2971cf961e16SLiad Kaufman /* 2972cf961e16SLiad Kaufman * Only reconfig the SCD for the queue if the window size has 2973cf961e16SLiad Kaufman * changed from current (become smaller) 2974cf961e16SLiad Kaufman */ 29750ec9257bSSara Sharon if (!alloc_queue && buf_size < IWL_FRAME_LIMIT) { 2976cf961e16SLiad Kaufman /* 2977cf961e16SLiad Kaufman * If reconfiguring an existing queue, it first must be 2978cf961e16SLiad Kaufman * drained 2979cf961e16SLiad Kaufman */ 2980a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, 2981cf961e16SLiad Kaufman BIT(queue)); 2982cf961e16SLiad Kaufman if (ret) { 2983cf961e16SLiad Kaufman IWL_ERR(mvm, 2984cf961e16SLiad Kaufman "Error draining queue before reconfig\n"); 2985cf961e16SLiad Kaufman return ret; 2986cf961e16SLiad Kaufman } 2987cf961e16SLiad Kaufman 2988cf961e16SLiad Kaufman ret = iwl_mvm_reconfig_scd(mvm, queue, cfg.fifo, 2989cf961e16SLiad Kaufman mvmsta->sta_id, tid, 2990cf961e16SLiad Kaufman buf_size, ssn); 2991cf961e16SLiad Kaufman if (ret) { 2992cf961e16SLiad Kaufman IWL_ERR(mvm, 2993cf961e16SLiad Kaufman "Error reconfiguring TXQ #%d\n", queue); 2994cf961e16SLiad Kaufman return ret; 2995cf961e16SLiad Kaufman } 2996cf961e16SLiad Kaufman } 2997cf961e16SLiad Kaufman 2998cf961e16SLiad Kaufman if (alloc_queue) 2999cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, queue, ssn, 3000cf961e16SLiad Kaufman &cfg, wdg_timeout); 3001e705c121SKalle Valo 30029f9af3d7SLiad Kaufman /* Send ADD_STA command to enable aggs only if the queue isn't shared */ 30039f9af3d7SLiad Kaufman if (queue_status != IWL_MVM_QUEUE_SHARED) { 3004e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); 3005e705c121SKalle Valo if (ret) 3006e705c121SKalle Valo return -EIO; 30079f9af3d7SLiad Kaufman } 3008e705c121SKalle Valo 3009e705c121SKalle Valo /* No need to mark as reserved */ 3010cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY; 3011e705c121SKalle Valo 301234e10860SSara Sharon out: 3013e705c121SKalle Valo /* 3014e705c121SKalle Valo * Even though in theory the peer could have different 3015e705c121SKalle Valo * aggregation reorder buffer sizes for different sessions, 3016e705c121SKalle Valo * our ucode doesn't allow for that and has a global limit 3017e705c121SKalle Valo * for each station. Therefore, use the minimum of all the 3018e705c121SKalle Valo * aggregation sessions and our default value. 3019e705c121SKalle Valo */ 3020e705c121SKalle Valo mvmsta->max_agg_bufsize = 3021e705c121SKalle Valo min(mvmsta->max_agg_bufsize, buf_size); 3022ecaf71deSGregory Greenman mvmsta->lq_sta.rs_drv.lq.agg_frame_cnt_limit = mvmsta->max_agg_bufsize; 3023e705c121SKalle Valo 3024e705c121SKalle Valo IWL_DEBUG_HT(mvm, "Tx aggregation enabled on ra = %pM tid = %d\n", 3025e705c121SKalle Valo sta->addr, tid); 3026e705c121SKalle Valo 3027cd4d6b0bSGregory Greenman return iwl_mvm_send_lq_cmd(mvm, &mvmsta->lq_sta.rs_drv.lq); 3028e705c121SKalle Valo } 3029e705c121SKalle Valo 303034e10860SSara Sharon static void iwl_mvm_unreserve_agg_queue(struct iwl_mvm *mvm, 303134e10860SSara Sharon struct iwl_mvm_sta *mvmsta, 30324b387906SAvraham Stern struct iwl_mvm_tid_data *tid_data) 303334e10860SSara Sharon { 30344b387906SAvraham Stern u16 txq_id = tid_data->txq_id; 30354b387906SAvraham Stern 3036f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex); 3037f3f240f9SJohannes Berg 303834e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 303934e10860SSara Sharon return; 304034e10860SSara Sharon 304134e10860SSara Sharon /* 304234e10860SSara Sharon * The TXQ is marked as reserved only if no traffic came through yet 304334e10860SSara Sharon * This means no traffic has been sent on this TID (agg'd or not), so 304434e10860SSara Sharon * we no longer have use for the queue. Since it hasn't even been 304534e10860SSara Sharon * allocated through iwl_mvm_enable_txq, so we can just mark it back as 304634e10860SSara Sharon * free. 304734e10860SSara Sharon */ 30484b387906SAvraham Stern if (mvm->queue_info[txq_id].status == IWL_MVM_QUEUE_RESERVED) { 304934e10860SSara Sharon mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_FREE; 30504b387906SAvraham Stern tid_data->txq_id = IWL_MVM_INVALID_QUEUE; 30514b387906SAvraham Stern } 305234e10860SSara Sharon } 305334e10860SSara Sharon 3054e705c121SKalle Valo int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3055e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3056e705c121SKalle Valo { 3057e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3058e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3059e705c121SKalle Valo u16 txq_id; 3060e705c121SKalle Valo int err; 3061e705c121SKalle Valo 3062e705c121SKalle Valo /* 3063e705c121SKalle Valo * If mac80211 is cleaning its state, then say that we finished since 3064e705c121SKalle Valo * our state has been cleared anyway. 3065e705c121SKalle Valo */ 3066e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3067e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3068e705c121SKalle Valo return 0; 3069e705c121SKalle Valo } 3070e705c121SKalle Valo 3071e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3072e705c121SKalle Valo 3073e705c121SKalle Valo txq_id = tid_data->txq_id; 3074e705c121SKalle Valo 3075e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Stop AGG: sta %d tid %d q %d state %d\n", 3076e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 3077e705c121SKalle Valo 3078e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3079e705c121SKalle Valo 30804b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3081e705c121SKalle Valo 3082e705c121SKalle Valo switch (tid_data->state) { 3083e705c121SKalle Valo case IWL_AGG_ON: 3084e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3085e705c121SKalle Valo 3086e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, 3087e705c121SKalle Valo "ssn = %d, next_recl = %d\n", 3088e705c121SKalle Valo tid_data->ssn, tid_data->next_reclaimed); 3089e705c121SKalle Valo 3090e705c121SKalle Valo tid_data->ssn = 0xffff; 3091e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3092e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3093e705c121SKalle Valo 3094e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3095e705c121SKalle Valo 3096e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3097e705c121SKalle Valo return 0; 3098e705c121SKalle Valo case IWL_AGG_STARTING: 3099e705c121SKalle Valo case IWL_EMPTYING_HW_QUEUE_ADDBA: 3100e705c121SKalle Valo /* 3101e705c121SKalle Valo * The agg session has been stopped before it was set up. This 3102e705c121SKalle Valo * can happen when the AddBA timer times out for example. 3103e705c121SKalle Valo */ 3104e705c121SKalle Valo 3105e705c121SKalle Valo /* No barriers since we are under mutex */ 3106e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3107e705c121SKalle Valo 3108e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 3109e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3110e705c121SKalle Valo err = 0; 3111e705c121SKalle Valo break; 3112e705c121SKalle Valo default: 3113e705c121SKalle Valo IWL_ERR(mvm, 3114e705c121SKalle Valo "Stopping AGG while state not ON or starting for %d on %d (%d)\n", 3115e705c121SKalle Valo mvmsta->sta_id, tid, tid_data->state); 3116e705c121SKalle Valo IWL_ERR(mvm, 3117e705c121SKalle Valo "\ttid_data->txq_id = %d\n", tid_data->txq_id); 3118e705c121SKalle Valo err = -EINVAL; 3119e705c121SKalle Valo } 3120e705c121SKalle Valo 3121e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3122e705c121SKalle Valo 3123e705c121SKalle Valo return err; 3124e705c121SKalle Valo } 3125e705c121SKalle Valo 3126e705c121SKalle Valo int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3127e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid) 3128e705c121SKalle Valo { 3129e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3130e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3131e705c121SKalle Valo u16 txq_id; 3132e705c121SKalle Valo enum iwl_mvm_agg_state old_state; 3133e705c121SKalle Valo 3134e705c121SKalle Valo /* 3135e705c121SKalle Valo * First set the agg state to OFF to avoid calling 3136e705c121SKalle Valo * ieee80211_stop_tx_ba_cb in iwl_mvm_check_ratid_empty. 3137e705c121SKalle Valo */ 3138e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3139e705c121SKalle Valo txq_id = tid_data->txq_id; 3140e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Flush AGG: sta %d tid %d q %d state %d\n", 3141e705c121SKalle Valo mvmsta->sta_id, tid, txq_id, tid_data->state); 3142e705c121SKalle Valo old_state = tid_data->state; 3143e705c121SKalle Valo tid_data->state = IWL_AGG_OFF; 3144e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid); 3145e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3146e705c121SKalle Valo 31474b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data); 3148e705c121SKalle Valo 3149e705c121SKalle Valo if (old_state >= IWL_AGG_ON) { 3150e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, true); 3151d167e81aSMordechai Goodstein 3152d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) { 3153d167e81aSMordechai Goodstein if (iwl_mvm_flush_sta_tids(mvm, mvmsta->sta_id, 3154d167e81aSMordechai Goodstein BIT(tid), 0)) 3155d167e81aSMordechai Goodstein IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 3156d167e81aSMordechai Goodstein iwl_trans_wait_txq_empty(mvm->trans, txq_id); 3157d167e81aSMordechai Goodstein } else { 3158e705c121SKalle Valo if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id), 0)) 3159e705c121SKalle Valo IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); 31600b90964aSSara Sharon iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(txq_id)); 3161d167e81aSMordechai Goodstein } 3162d6d517b7SSara Sharon 3163e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, false); 3164e705c121SKalle Valo 3165e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false); 3166e705c121SKalle Valo } 3167e705c121SKalle Valo 3168e705c121SKalle Valo return 0; 3169e705c121SKalle Valo } 3170e705c121SKalle Valo 3171e705c121SKalle Valo static int iwl_mvm_set_fw_key_idx(struct iwl_mvm *mvm) 3172e705c121SKalle Valo { 3173e705c121SKalle Valo int i, max = -1, max_offs = -1; 3174e705c121SKalle Valo 3175e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3176e705c121SKalle Valo 3177e705c121SKalle Valo /* Pick the unused key offset with the highest 'deleted' 3178e705c121SKalle Valo * counter. Every time a key is deleted, all the counters 3179e705c121SKalle Valo * are incremented and the one that was just deleted is 3180e705c121SKalle Valo * reset to zero. Thus, the highest counter is the one 3181e705c121SKalle Valo * that was deleted longest ago. Pick that one. 3182e705c121SKalle Valo */ 3183e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3184e705c121SKalle Valo if (test_bit(i, mvm->fw_key_table)) 3185e705c121SKalle Valo continue; 3186e705c121SKalle Valo if (mvm->fw_key_deleted[i] > max) { 3187e705c121SKalle Valo max = mvm->fw_key_deleted[i]; 3188e705c121SKalle Valo max_offs = i; 3189e705c121SKalle Valo } 3190e705c121SKalle Valo } 3191e705c121SKalle Valo 3192e705c121SKalle Valo if (max_offs < 0) 3193e705c121SKalle Valo return STA_KEY_IDX_INVALID; 3194e705c121SKalle Valo 3195e705c121SKalle Valo return max_offs; 3196e705c121SKalle Valo } 3197e705c121SKalle Valo 31985f7a1847SJohannes Berg static struct iwl_mvm_sta *iwl_mvm_get_key_sta(struct iwl_mvm *mvm, 31994615fd15SEmmanuel Grumbach struct ieee80211_vif *vif, 3200e705c121SKalle Valo struct ieee80211_sta *sta) 3201e705c121SKalle Valo { 3202e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3203e705c121SKalle Valo 32045f7a1847SJohannes Berg if (sta) 32055f7a1847SJohannes Berg return iwl_mvm_sta_from_mac80211(sta); 3206e705c121SKalle Valo 3207e705c121SKalle Valo /* 3208e705c121SKalle Valo * The device expects GTKs for station interfaces to be 3209e705c121SKalle Valo * installed as GTKs for the AP station. If we have no 3210e705c121SKalle Valo * station ID, then use AP's station ID. 3211e705c121SKalle Valo */ 3212e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 32130ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 32144615fd15SEmmanuel Grumbach u8 sta_id = mvmvif->ap_sta_id; 32154615fd15SEmmanuel Grumbach 32167d6a1ab6SEmmanuel Grumbach sta = rcu_dereference_check(mvm->fw_id_to_mac_id[sta_id], 32177d6a1ab6SEmmanuel Grumbach lockdep_is_held(&mvm->mutex)); 32187d6a1ab6SEmmanuel Grumbach 32194615fd15SEmmanuel Grumbach /* 32204615fd15SEmmanuel Grumbach * It is possible that the 'sta' parameter is NULL, 32214615fd15SEmmanuel Grumbach * for example when a GTK is removed - the sta_id will then 32224615fd15SEmmanuel Grumbach * be the AP ID, and no station was passed by mac80211. 32234615fd15SEmmanuel Grumbach */ 32247d6a1ab6SEmmanuel Grumbach if (IS_ERR_OR_NULL(sta)) 32257d6a1ab6SEmmanuel Grumbach return NULL; 32267d6a1ab6SEmmanuel Grumbach 32277d6a1ab6SEmmanuel Grumbach return iwl_mvm_sta_from_mac80211(sta); 32284615fd15SEmmanuel Grumbach } 3229e705c121SKalle Valo 32305f7a1847SJohannes Berg return NULL; 3231e705c121SKalle Valo } 3232e705c121SKalle Valo 3233e705c121SKalle Valo static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm, 323485aeb58cSDavid Spinadel u32 sta_id, 323545c458b4SSara Sharon struct ieee80211_key_conf *key, bool mcast, 32364615fd15SEmmanuel Grumbach u32 tkip_iv32, u16 *tkip_p1k, u32 cmd_flags, 32374883145aSEmmanuel Grumbach u8 key_offset, bool mfp) 3238e705c121SKalle Valo { 323945c458b4SSara Sharon union { 324045c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; 324145c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd cmd; 324245c458b4SSara Sharon } u = {}; 3243e705c121SKalle Valo __le16 key_flags; 3244e705c121SKalle Valo int ret; 3245e705c121SKalle Valo u32 status; 3246e705c121SKalle Valo u16 keyidx; 324745c458b4SSara Sharon u64 pn = 0; 324845c458b4SSara Sharon int i, size; 324945c458b4SSara Sharon bool new_api = fw_has_api(&mvm->fw->ucode_capa, 325045c458b4SSara Sharon IWL_UCODE_TLV_API_TKIP_MIC_KEYS); 3251e705c121SKalle Valo 325285aeb58cSDavid Spinadel if (sta_id == IWL_MVM_INVALID_STA) 325385aeb58cSDavid Spinadel return -EINVAL; 325485aeb58cSDavid Spinadel 325545c458b4SSara Sharon keyidx = (key->keyidx << STA_KEY_FLG_KEYID_POS) & 3256e705c121SKalle Valo STA_KEY_FLG_KEYID_MSK; 3257e705c121SKalle Valo key_flags = cpu_to_le16(keyidx); 3258e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_KEY_MAP); 3259e705c121SKalle Valo 326045c458b4SSara Sharon switch (key->cipher) { 3261e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 3262e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_TKIP); 326345c458b4SSara Sharon if (new_api) { 326445c458b4SSara Sharon memcpy((void *)&u.cmd.tx_mic_key, 326545c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], 326645c458b4SSara Sharon IWL_MIC_KEY_SIZE); 326745c458b4SSara Sharon 326845c458b4SSara Sharon memcpy((void *)&u.cmd.rx_mic_key, 326945c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], 327045c458b4SSara Sharon IWL_MIC_KEY_SIZE); 327145c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 327245c458b4SSara Sharon 327345c458b4SSara Sharon } else { 327445c458b4SSara Sharon u.cmd_v1.tkip_rx_tsc_byte2 = tkip_iv32; 3275e705c121SKalle Valo for (i = 0; i < 5; i++) 327645c458b4SSara Sharon u.cmd_v1.tkip_rx_ttak[i] = 327745c458b4SSara Sharon cpu_to_le16(tkip_p1k[i]); 327845c458b4SSara Sharon } 327945c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3280e705c121SKalle Valo break; 3281e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 3282e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_CCM); 328345c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 328445c458b4SSara Sharon if (new_api) 328545c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 3286e705c121SKalle Valo break; 3287e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 3288e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_13BYTES); 3289e705c121SKalle Valo /* fall through */ 3290e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 3291e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP); 329245c458b4SSara Sharon memcpy(u.cmd.common.key + 3, key->key, key->keylen); 3293e705c121SKalle Valo break; 32942a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 32952a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_KEY_32BYTES); 32962a53d166SAyala Beker /* fall through */ 32972a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 32982a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_GCMP); 329945c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 330045c458b4SSara Sharon if (new_api) 330145c458b4SSara Sharon pn = atomic64_read(&key->tx_pn); 33022a53d166SAyala Beker break; 3303e705c121SKalle Valo default: 3304e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_EXT); 330545c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen); 3306e705c121SKalle Valo } 3307e705c121SKalle Valo 3308e705c121SKalle Valo if (mcast) 3309e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_MULTICAST); 33104883145aSEmmanuel Grumbach if (mfp) 33114883145aSEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MFP); 3312e705c121SKalle Valo 331345c458b4SSara Sharon u.cmd.common.key_offset = key_offset; 331445c458b4SSara Sharon u.cmd.common.key_flags = key_flags; 331585aeb58cSDavid Spinadel u.cmd.common.sta_id = sta_id; 331645c458b4SSara Sharon 331745c458b4SSara Sharon if (new_api) { 331845c458b4SSara Sharon u.cmd.transmit_seq_cnt = cpu_to_le64(pn); 331945c458b4SSara Sharon size = sizeof(u.cmd); 332045c458b4SSara Sharon } else { 332145c458b4SSara Sharon size = sizeof(u.cmd_v1); 332245c458b4SSara Sharon } 3323e705c121SKalle Valo 3324e705c121SKalle Valo status = ADD_STA_SUCCESS; 3325e705c121SKalle Valo if (cmd_flags & CMD_ASYNC) 332645c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA_KEY, CMD_ASYNC, size, 332745c458b4SSara Sharon &u.cmd); 3328e705c121SKalle Valo else 332945c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, 333045c458b4SSara Sharon &u.cmd, &status); 3331e705c121SKalle Valo 3332e705c121SKalle Valo switch (status) { 3333e705c121SKalle Valo case ADD_STA_SUCCESS: 3334e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "MODIFY_STA: set dynamic key passed\n"); 3335e705c121SKalle Valo break; 3336e705c121SKalle Valo default: 3337e705c121SKalle Valo ret = -EIO; 3338e705c121SKalle Valo IWL_ERR(mvm, "MODIFY_STA: set dynamic key failed\n"); 3339e705c121SKalle Valo break; 3340e705c121SKalle Valo } 3341e705c121SKalle Valo 3342e705c121SKalle Valo return ret; 3343e705c121SKalle Valo } 3344e705c121SKalle Valo 3345e705c121SKalle Valo static int iwl_mvm_send_sta_igtk(struct iwl_mvm *mvm, 3346e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3347e705c121SKalle Valo u8 sta_id, bool remove_key) 3348e705c121SKalle Valo { 3349e705c121SKalle Valo struct iwl_mvm_mgmt_mcast_key_cmd igtk_cmd = {}; 3350e705c121SKalle Valo 3351e705c121SKalle Valo /* verify the key details match the required command's expectations */ 33528e160ab8SAyala Beker if (WARN_ON((keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) || 33538e160ab8SAyala Beker (keyconf->keyidx != 4 && keyconf->keyidx != 5) || 33548e160ab8SAyala Beker (keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC && 33558e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_128 && 33568e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_256))) 33578e160ab8SAyala Beker return -EINVAL; 33588e160ab8SAyala Beker 33598e160ab8SAyala Beker if (WARN_ON(!iwl_mvm_has_new_rx_api(mvm) && 33608e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC)) 3361e705c121SKalle Valo return -EINVAL; 3362e705c121SKalle Valo 3363e705c121SKalle Valo igtk_cmd.key_id = cpu_to_le32(keyconf->keyidx); 3364e705c121SKalle Valo igtk_cmd.sta_id = cpu_to_le32(sta_id); 3365e705c121SKalle Valo 3366e705c121SKalle Valo if (remove_key) { 3367197288d5SLuca Coelho /* This is a valid situation for IGTK */ 3368197288d5SLuca Coelho if (sta_id == IWL_MVM_INVALID_STA) 3369197288d5SLuca Coelho return 0; 3370197288d5SLuca Coelho 3371e705c121SKalle Valo igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_NOT_VALID); 3372e705c121SKalle Valo } else { 3373e705c121SKalle Valo struct ieee80211_key_seq seq; 3374e705c121SKalle Valo const u8 *pn; 3375e705c121SKalle Valo 3376aa950524SAyala Beker switch (keyconf->cipher) { 3377aa950524SAyala Beker case WLAN_CIPHER_SUITE_AES_CMAC: 3378aa950524SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_CCM); 3379aa950524SAyala Beker break; 33808e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_128: 33818e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_256: 33828e160ab8SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_GCMP); 33838e160ab8SAyala Beker break; 3384aa950524SAyala Beker default: 3385aa950524SAyala Beker return -EINVAL; 3386aa950524SAyala Beker } 3387aa950524SAyala Beker 33888e160ab8SAyala Beker memcpy(igtk_cmd.igtk, keyconf->key, keyconf->keylen); 33898e160ab8SAyala Beker if (keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 33908e160ab8SAyala Beker igtk_cmd.ctrl_flags |= 33918e160ab8SAyala Beker cpu_to_le32(STA_KEY_FLG_KEY_32BYTES); 3392e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3393e705c121SKalle Valo pn = seq.aes_cmac.pn; 3394e705c121SKalle Valo igtk_cmd.receive_seq_cnt = cpu_to_le64(((u64) pn[5] << 0) | 3395e705c121SKalle Valo ((u64) pn[4] << 8) | 3396e705c121SKalle Valo ((u64) pn[3] << 16) | 3397e705c121SKalle Valo ((u64) pn[2] << 24) | 3398e705c121SKalle Valo ((u64) pn[1] << 32) | 3399e705c121SKalle Valo ((u64) pn[0] << 40)); 3400e705c121SKalle Valo } 3401e705c121SKalle Valo 3402e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "%s igtk for sta %u\n", 3403e705c121SKalle Valo remove_key ? "removing" : "installing", 3404e705c121SKalle Valo igtk_cmd.sta_id); 3405e705c121SKalle Valo 34068e160ab8SAyala Beker if (!iwl_mvm_has_new_rx_api(mvm)) { 34078e160ab8SAyala Beker struct iwl_mvm_mgmt_mcast_key_cmd_v1 igtk_cmd_v1 = { 34088e160ab8SAyala Beker .ctrl_flags = igtk_cmd.ctrl_flags, 34098e160ab8SAyala Beker .key_id = igtk_cmd.key_id, 34108e160ab8SAyala Beker .sta_id = igtk_cmd.sta_id, 34118e160ab8SAyala Beker .receive_seq_cnt = igtk_cmd.receive_seq_cnt 34128e160ab8SAyala Beker }; 34138e160ab8SAyala Beker 34148e160ab8SAyala Beker memcpy(igtk_cmd_v1.igtk, igtk_cmd.igtk, 34158e160ab8SAyala Beker ARRAY_SIZE(igtk_cmd_v1.igtk)); 34168e160ab8SAyala Beker return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 34178e160ab8SAyala Beker sizeof(igtk_cmd_v1), &igtk_cmd_v1); 34188e160ab8SAyala Beker } 3419e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, 3420e705c121SKalle Valo sizeof(igtk_cmd), &igtk_cmd); 3421e705c121SKalle Valo } 3422e705c121SKalle Valo 3423e705c121SKalle Valo 3424e705c121SKalle Valo static inline u8 *iwl_mvm_get_mac_addr(struct iwl_mvm *mvm, 3425e705c121SKalle Valo struct ieee80211_vif *vif, 3426e705c121SKalle Valo struct ieee80211_sta *sta) 3427e705c121SKalle Valo { 3428e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3429e705c121SKalle Valo 3430e705c121SKalle Valo if (sta) 3431e705c121SKalle Valo return sta->addr; 3432e705c121SKalle Valo 3433e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 34340ae98812SSara Sharon mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 3435e705c121SKalle Valo u8 sta_id = mvmvif->ap_sta_id; 3436e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], 3437e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3438e705c121SKalle Valo return sta->addr; 3439e705c121SKalle Valo } 3440e705c121SKalle Valo 3441e705c121SKalle Valo 3442e705c121SKalle Valo return NULL; 3443e705c121SKalle Valo } 3444e705c121SKalle Valo 3445e705c121SKalle Valo static int __iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3446e705c121SKalle Valo struct ieee80211_vif *vif, 3447e705c121SKalle Valo struct ieee80211_sta *sta, 3448e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 34494615fd15SEmmanuel Grumbach u8 key_offset, 3450e705c121SKalle Valo bool mcast) 3451e705c121SKalle Valo { 3452e705c121SKalle Valo int ret; 3453e705c121SKalle Valo const u8 *addr; 3454e705c121SKalle Valo struct ieee80211_key_seq seq; 3455e705c121SKalle Valo u16 p1k[5]; 345685aeb58cSDavid Spinadel u32 sta_id; 34574883145aSEmmanuel Grumbach bool mfp = false; 345885aeb58cSDavid Spinadel 345985aeb58cSDavid Spinadel if (sta) { 346085aeb58cSDavid Spinadel struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 346185aeb58cSDavid Spinadel 346285aeb58cSDavid Spinadel sta_id = mvm_sta->sta_id; 34634883145aSEmmanuel Grumbach mfp = sta->mfp; 346485aeb58cSDavid Spinadel } else if (vif->type == NL80211_IFTYPE_AP && 346585aeb58cSDavid Spinadel !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { 346685aeb58cSDavid Spinadel struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 346785aeb58cSDavid Spinadel 346885aeb58cSDavid Spinadel sta_id = mvmvif->mcast_sta.sta_id; 346985aeb58cSDavid Spinadel } else { 347085aeb58cSDavid Spinadel IWL_ERR(mvm, "Failed to find station id\n"); 347185aeb58cSDavid Spinadel return -EINVAL; 347285aeb58cSDavid Spinadel } 3473e705c121SKalle Valo 3474e705c121SKalle Valo switch (keyconf->cipher) { 3475e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 3476e705c121SKalle Valo addr = iwl_mvm_get_mac_addr(mvm, vif, sta); 3477e705c121SKalle Valo /* get phase 1 key from mac80211 */ 3478e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq); 3479e705c121SKalle Valo ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k); 348085aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 34814883145aSEmmanuel Grumbach seq.tkip.iv32, p1k, 0, key_offset, 34824883145aSEmmanuel Grumbach mfp); 3483e705c121SKalle Valo break; 3484e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 3485e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 3486e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 34872a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 34882a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 348985aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 34904883145aSEmmanuel Grumbach 0, NULL, 0, key_offset, mfp); 3491e705c121SKalle Valo break; 3492e705c121SKalle Valo default: 349385aeb58cSDavid Spinadel ret = iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast, 34944883145aSEmmanuel Grumbach 0, NULL, 0, key_offset, mfp); 3495e705c121SKalle Valo } 3496e705c121SKalle Valo 3497e705c121SKalle Valo return ret; 3498e705c121SKalle Valo } 3499e705c121SKalle Valo 3500e705c121SKalle Valo int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 3501e705c121SKalle Valo struct ieee80211_vif *vif, 3502e705c121SKalle Valo struct ieee80211_sta *sta, 3503e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 35044615fd15SEmmanuel Grumbach u8 key_offset) 3505e705c121SKalle Valo { 3506e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 35075f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 350885aeb58cSDavid Spinadel u8 sta_id = IWL_MVM_INVALID_STA; 3509e705c121SKalle Valo int ret; 3510e705c121SKalle Valo static const u8 __maybe_unused zero_addr[ETH_ALEN] = {0}; 3511e705c121SKalle Valo 3512e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3513e705c121SKalle Valo 351485aeb58cSDavid Spinadel if (vif->type != NL80211_IFTYPE_AP || 351585aeb58cSDavid Spinadel keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) { 3516e705c121SKalle Valo /* Get the station id from the mvm local station table */ 35175f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 35185f7a1847SJohannes Berg if (!mvm_sta) { 35195f7a1847SJohannes Berg IWL_ERR(mvm, "Failed to find station\n"); 3520e705c121SKalle Valo return -EINVAL; 3521e705c121SKalle Valo } 35225f7a1847SJohannes Berg sta_id = mvm_sta->sta_id; 3523e705c121SKalle Valo 3524e705c121SKalle Valo /* 3525e705c121SKalle Valo * It is possible that the 'sta' parameter is NULL, and thus 352685aeb58cSDavid Spinadel * there is a need to retrieve the sta from the local station 352785aeb58cSDavid Spinadel * table. 3528e705c121SKalle Valo */ 3529e705c121SKalle Valo if (!sta) { 353085aeb58cSDavid Spinadel sta = rcu_dereference_protected( 353185aeb58cSDavid Spinadel mvm->fw_id_to_mac_id[sta_id], 3532e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3533e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) { 3534e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n"); 3535e705c121SKalle Valo return -EINVAL; 3536e705c121SKalle Valo } 3537e705c121SKalle Valo } 3538e705c121SKalle Valo 3539e705c121SKalle Valo if (WARN_ON_ONCE(iwl_mvm_sta_from_mac80211(sta)->vif != vif)) 3540e705c121SKalle Valo return -EINVAL; 3541e829b17cSBeni Lev } else { 3542e829b17cSBeni Lev struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3543e829b17cSBeni Lev 3544e829b17cSBeni Lev sta_id = mvmvif->mcast_sta.sta_id; 3545e829b17cSBeni Lev } 3546e829b17cSBeni Lev 3547e829b17cSBeni Lev if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3548e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3549e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) { 3550e829b17cSBeni Lev ret = iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, false); 3551e829b17cSBeni Lev goto end; 355285aeb58cSDavid Spinadel } 3553e705c121SKalle Valo 35544615fd15SEmmanuel Grumbach /* If the key_offset is not pre-assigned, we need to find a 35554615fd15SEmmanuel Grumbach * new offset to use. In normal cases, the offset is not 35564615fd15SEmmanuel Grumbach * pre-assigned, but during HW_RESTART we want to reuse the 35574615fd15SEmmanuel Grumbach * same indices, so we pass them when this function is called. 35584615fd15SEmmanuel Grumbach * 35594615fd15SEmmanuel Grumbach * In D3 entry, we need to hardcoded the indices (because the 35604615fd15SEmmanuel Grumbach * firmware hardcodes the PTK offset to 0). In this case, we 35614615fd15SEmmanuel Grumbach * need to make sure we don't overwrite the hw_key_idx in the 35624615fd15SEmmanuel Grumbach * keyconf structure, because otherwise we cannot configure 35634615fd15SEmmanuel Grumbach * the original ones back when resuming. 3564e705c121SKalle Valo */ 35654615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) { 35664615fd15SEmmanuel Grumbach key_offset = iwl_mvm_set_fw_key_idx(mvm); 35674615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) 3568e705c121SKalle Valo return -ENOSPC; 35694615fd15SEmmanuel Grumbach keyconf->hw_key_idx = key_offset; 3570e705c121SKalle Valo } 3571e705c121SKalle Valo 35724615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, key_offset, mcast); 35739c3deeb5SLuca Coelho if (ret) 3574e705c121SKalle Valo goto end; 3575e705c121SKalle Valo 3576e705c121SKalle Valo /* 3577e705c121SKalle Valo * For WEP, the same key is used for multicast and unicast. Upload it 3578e705c121SKalle Valo * again, using the same key offset, and now pointing the other one 3579e705c121SKalle Valo * to the same key slot (offset). 3580e705c121SKalle Valo * If this fails, remove the original as well. 3581e705c121SKalle Valo */ 358285aeb58cSDavid Spinadel if ((keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 358385aeb58cSDavid Spinadel keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) && 358485aeb58cSDavid Spinadel sta) { 35854615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, 35864615fd15SEmmanuel Grumbach key_offset, !mcast); 3587e705c121SKalle Valo if (ret) { 3588e705c121SKalle Valo __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 35899c3deeb5SLuca Coelho goto end; 3590e705c121SKalle Valo } 3591e705c121SKalle Valo } 3592e705c121SKalle Valo 35939c3deeb5SLuca Coelho __set_bit(key_offset, mvm->fw_key_table); 35949c3deeb5SLuca Coelho 3595e705c121SKalle Valo end: 3596e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "key: cipher=%x len=%d idx=%d sta=%pM ret=%d\n", 3597e705c121SKalle Valo keyconf->cipher, keyconf->keylen, keyconf->keyidx, 3598e705c121SKalle Valo sta ? sta->addr : zero_addr, ret); 3599e705c121SKalle Valo return ret; 3600e705c121SKalle Valo } 3601e705c121SKalle Valo 3602e705c121SKalle Valo int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, 3603e705c121SKalle Valo struct ieee80211_vif *vif, 3604e705c121SKalle Valo struct ieee80211_sta *sta, 3605e705c121SKalle Valo struct ieee80211_key_conf *keyconf) 3606e705c121SKalle Valo { 3607e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 36085f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta; 36090ae98812SSara Sharon u8 sta_id = IWL_MVM_INVALID_STA; 3610e705c121SKalle Valo int ret, i; 3611e705c121SKalle Valo 3612e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3613e705c121SKalle Valo 36145f7a1847SJohannes Berg /* Get the station from the mvm local station table */ 36155f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 361671793b7dSLuca Coelho if (mvm_sta) 3617cd4d23c1SIlan Peer sta_id = mvm_sta->sta_id; 361885aeb58cSDavid Spinadel else if (!sta && vif->type == NL80211_IFTYPE_AP && mcast) 361985aeb58cSDavid Spinadel sta_id = iwl_mvm_vif_from_mac80211(vif)->mcast_sta.sta_id; 362085aeb58cSDavid Spinadel 3621e705c121SKalle Valo 3622e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "mvm remove dynamic key: idx=%d sta=%d\n", 3623e705c121SKalle Valo keyconf->keyidx, sta_id); 3624e705c121SKalle Valo 3625197288d5SLuca Coelho if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 36268e160ab8SAyala Beker keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3627197288d5SLuca Coelho keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 3628e705c121SKalle Valo return iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, true); 3629e705c121SKalle Valo 3630e705c121SKalle Valo if (!__test_and_clear_bit(keyconf->hw_key_idx, mvm->fw_key_table)) { 3631e705c121SKalle Valo IWL_ERR(mvm, "offset %d not used in fw key table.\n", 3632e705c121SKalle Valo keyconf->hw_key_idx); 3633e705c121SKalle Valo return -ENOENT; 3634e705c121SKalle Valo } 3635e705c121SKalle Valo 3636e705c121SKalle Valo /* track which key was deleted last */ 3637e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) { 3638e705c121SKalle Valo if (mvm->fw_key_deleted[i] < U8_MAX) 3639e705c121SKalle Valo mvm->fw_key_deleted[i]++; 3640e705c121SKalle Valo } 3641e705c121SKalle Valo mvm->fw_key_deleted[keyconf->hw_key_idx] = 0; 3642e705c121SKalle Valo 364385aeb58cSDavid Spinadel if (sta && !mvm_sta) { 3644e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "station non-existent, early return.\n"); 3645e705c121SKalle Valo return 0; 3646e705c121SKalle Valo } 3647e705c121SKalle Valo 3648e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast); 3649e705c121SKalle Valo if (ret) 3650e705c121SKalle Valo return ret; 3651e705c121SKalle Valo 3652e705c121SKalle Valo /* delete WEP key twice to get rid of (now useless) offset */ 3653e705c121SKalle Valo if (keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 || 3654e705c121SKalle Valo keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) 3655e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, !mcast); 3656e705c121SKalle Valo 3657e705c121SKalle Valo return ret; 3658e705c121SKalle Valo } 3659e705c121SKalle Valo 3660e705c121SKalle Valo void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, 3661e705c121SKalle Valo struct ieee80211_vif *vif, 3662e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3663e705c121SKalle Valo struct ieee80211_sta *sta, u32 iv32, 3664e705c121SKalle Valo u16 *phase1key) 3665e705c121SKalle Valo { 3666e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3667e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE); 36684883145aSEmmanuel Grumbach bool mfp = sta ? sta->mfp : false; 3669e705c121SKalle Valo 3670e705c121SKalle Valo rcu_read_lock(); 3671e705c121SKalle Valo 36725f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta); 36735f7a1847SJohannes Berg if (WARN_ON_ONCE(!mvm_sta)) 367412f17211SEmmanuel Grumbach goto unlock; 367585aeb58cSDavid Spinadel iwl_mvm_send_sta_key(mvm, mvm_sta->sta_id, keyconf, mcast, 36764883145aSEmmanuel Grumbach iv32, phase1key, CMD_ASYNC, keyconf->hw_key_idx, 36774883145aSEmmanuel Grumbach mfp); 367812f17211SEmmanuel Grumbach 367912f17211SEmmanuel Grumbach unlock: 3680e705c121SKalle Valo rcu_read_unlock(); 3681e705c121SKalle Valo } 3682e705c121SKalle Valo 3683e705c121SKalle Valo void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, 3684e705c121SKalle Valo struct ieee80211_sta *sta) 3685e705c121SKalle Valo { 3686e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3687e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3688e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3689e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3690e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_PS), 3691e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3692e705c121SKalle Valo }; 3693e705c121SKalle Valo int ret; 3694e705c121SKalle Valo 3695854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3696854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3697e705c121SKalle Valo if (ret) 3698e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3699e705c121SKalle Valo } 3700e705c121SKalle Valo 3701e705c121SKalle Valo void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, 3702e705c121SKalle Valo struct ieee80211_sta *sta, 3703e705c121SKalle Valo enum ieee80211_frame_release_type reason, 3704e705c121SKalle Valo u16 cnt, u16 tids, bool more_data, 37059a3fcf91SSara Sharon bool single_sta_queue) 3706e705c121SKalle Valo { 3707e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3708e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3709e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3710e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3711e705c121SKalle Valo .modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT, 3712e705c121SKalle Valo .sleep_tx_count = cpu_to_le16(cnt), 3713e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3714e705c121SKalle Valo }; 3715e705c121SKalle Valo int tid, ret; 3716e705c121SKalle Valo unsigned long _tids = tids; 3717e705c121SKalle Valo 3718e705c121SKalle Valo /* convert TIDs to ACs - we don't support TSPEC so that's OK 3719e705c121SKalle Valo * Note that this field is reserved and unused by firmware not 3720e705c121SKalle Valo * supporting GO uAPSD, so it's safe to always do this. 3721e705c121SKalle Valo */ 3722e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) 3723e705c121SKalle Valo cmd.awake_acs |= BIT(tid_to_ucode_ac[tid]); 3724e705c121SKalle Valo 37259a3fcf91SSara Sharon /* If we're releasing frames from aggregation or dqa queues then check 37269a3fcf91SSara Sharon * if all the queues that we're releasing frames from, combined, have: 3727e705c121SKalle Valo * - more frames than the service period, in which case more_data 3728e705c121SKalle Valo * needs to be set 3729e705c121SKalle Valo * - fewer than 'cnt' frames, in which case we need to adjust the 3730e705c121SKalle Valo * firmware command (but do that unconditionally) 3731e705c121SKalle Valo */ 37329a3fcf91SSara Sharon if (single_sta_queue) { 3733e705c121SKalle Valo int remaining = cnt; 373436be0eb6SEmmanuel Grumbach int sleep_tx_count; 3735e705c121SKalle Valo 3736e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 3737e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) { 3738e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data; 3739e705c121SKalle Valo u16 n_queued; 3740e705c121SKalle Valo 3741e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid]; 3742e705c121SKalle Valo 3743dd32162dSLiad Kaufman n_queued = iwl_mvm_tid_queued(mvm, tid_data); 3744e705c121SKalle Valo if (n_queued > remaining) { 3745e705c121SKalle Valo more_data = true; 3746e705c121SKalle Valo remaining = 0; 3747e705c121SKalle Valo break; 3748e705c121SKalle Valo } 3749e705c121SKalle Valo remaining -= n_queued; 3750e705c121SKalle Valo } 375136be0eb6SEmmanuel Grumbach sleep_tx_count = cnt - remaining; 375236be0eb6SEmmanuel Grumbach if (reason == IEEE80211_FRAME_RELEASE_UAPSD) 375336be0eb6SEmmanuel Grumbach mvmsta->sleep_tx_count = sleep_tx_count; 3754e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 3755e705c121SKalle Valo 375636be0eb6SEmmanuel Grumbach cmd.sleep_tx_count = cpu_to_le16(sleep_tx_count); 3757e705c121SKalle Valo if (WARN_ON(cnt - remaining == 0)) { 3758e705c121SKalle Valo ieee80211_sta_eosp(sta); 3759e705c121SKalle Valo return; 3760e705c121SKalle Valo } 3761e705c121SKalle Valo } 3762e705c121SKalle Valo 3763e705c121SKalle Valo /* Note: this is ignored by firmware not supporting GO uAPSD */ 3764e705c121SKalle Valo if (more_data) 3765ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_MOREDATA; 3766e705c121SKalle Valo 3767e705c121SKalle Valo if (reason == IEEE80211_FRAME_RELEASE_PSPOLL) { 3768e705c121SKalle Valo mvmsta->next_status_eosp = true; 3769ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_PS_POLL; 3770e705c121SKalle Valo } else { 3771ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_UAPSD; 3772e705c121SKalle Valo } 3773e705c121SKalle Valo 3774156f92f2SEmmanuel Grumbach /* block the Tx queues until the FW updated the sleep Tx count */ 3775156f92f2SEmmanuel Grumbach iwl_trans_block_txq_ptrs(mvm->trans, true); 3776156f92f2SEmmanuel Grumbach 3777156f92f2SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 3778156f92f2SEmmanuel Grumbach CMD_ASYNC | CMD_WANT_ASYNC_CALLBACK, 3779854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3780e705c121SKalle Valo if (ret) 3781e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3782e705c121SKalle Valo } 3783e705c121SKalle Valo 3784e705c121SKalle Valo void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm, 3785e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 3786e705c121SKalle Valo { 3787e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 3788e705c121SKalle Valo struct iwl_mvm_eosp_notification *notif = (void *)pkt->data; 3789e705c121SKalle Valo struct ieee80211_sta *sta; 3790e705c121SKalle Valo u32 sta_id = le32_to_cpu(notif->sta_id); 3791e705c121SKalle Valo 3792be9ae34eSNathan Errera if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 3793e705c121SKalle Valo return; 3794e705c121SKalle Valo 3795e705c121SKalle Valo rcu_read_lock(); 3796e705c121SKalle Valo sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 3797e705c121SKalle Valo if (!IS_ERR_OR_NULL(sta)) 3798e705c121SKalle Valo ieee80211_sta_eosp(sta); 3799e705c121SKalle Valo rcu_read_unlock(); 3800e705c121SKalle Valo } 3801e705c121SKalle Valo 3802e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm, 3803e705c121SKalle Valo struct iwl_mvm_sta *mvmsta, bool disable) 3804e705c121SKalle Valo { 3805e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = { 3806e705c121SKalle Valo .add_modify = STA_MODE_MODIFY, 3807e705c121SKalle Valo .sta_id = mvmsta->sta_id, 3808e705c121SKalle Valo .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 3809e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 3810e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), 3811e705c121SKalle Valo }; 3812e705c121SKalle Valo int ret; 3813e705c121SKalle Valo 3814854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, 3815854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3816e705c121SKalle Valo if (ret) 3817e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3818e705c121SKalle Valo } 3819e705c121SKalle Valo 3820e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm, 3821e705c121SKalle Valo struct ieee80211_sta *sta, 3822e705c121SKalle Valo bool disable) 3823e705c121SKalle Valo { 3824e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3825e705c121SKalle Valo 3826e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock); 3827e705c121SKalle Valo 3828e705c121SKalle Valo if (mvm_sta->disable_tx == disable) { 3829e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 3830e705c121SKalle Valo return; 3831e705c121SKalle Valo } 3832e705c121SKalle Valo 3833e705c121SKalle Valo mvm_sta->disable_tx = disable; 3834e705c121SKalle Valo 3835c8f54701SJohannes Berg /* Tell mac80211 to start/stop queuing tx for this station */ 3836e705c121SKalle Valo ieee80211_sta_block_awake(mvm->hw, sta, disable); 3837e705c121SKalle Valo 3838e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvm_sta, disable); 3839e705c121SKalle Valo 3840e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock); 3841e705c121SKalle Valo } 3842e705c121SKalle Valo 3843ced19f26SSara Sharon static void iwl_mvm_int_sta_modify_disable_tx(struct iwl_mvm *mvm, 3844ced19f26SSara Sharon struct iwl_mvm_vif *mvmvif, 3845ced19f26SSara Sharon struct iwl_mvm_int_sta *sta, 3846ced19f26SSara Sharon bool disable) 3847ced19f26SSara Sharon { 3848ced19f26SSara Sharon u32 id = FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color); 3849ced19f26SSara Sharon struct iwl_mvm_add_sta_cmd cmd = { 3850ced19f26SSara Sharon .add_modify = STA_MODE_MODIFY, 3851ced19f26SSara Sharon .sta_id = sta->sta_id, 3852ced19f26SSara Sharon .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0, 3853ced19f26SSara Sharon .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX), 3854ced19f26SSara Sharon .mac_id_n_color = cpu_to_le32(id), 3855ced19f26SSara Sharon }; 3856ced19f26SSara Sharon int ret; 3857ced19f26SSara Sharon 3858ced19f26SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, 0, 3859ced19f26SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd); 3860ced19f26SSara Sharon if (ret) 3861ced19f26SSara Sharon IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); 3862ced19f26SSara Sharon } 3863ced19f26SSara Sharon 3864e705c121SKalle Valo void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm, 3865e705c121SKalle Valo struct iwl_mvm_vif *mvmvif, 3866e705c121SKalle Valo bool disable) 3867e705c121SKalle Valo { 3868e705c121SKalle Valo struct ieee80211_sta *sta; 3869e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta; 3870e705c121SKalle Valo int i; 3871e705c121SKalle Valo 3872e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3873e705c121SKalle Valo 3874e705c121SKalle Valo /* Block/unblock all the stations of the given mvmvif */ 3875be9ae34eSNathan Errera for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 3876e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 3877e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3878e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) 3879e705c121SKalle Valo continue; 3880e705c121SKalle Valo 3881e705c121SKalle Valo mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3882e705c121SKalle Valo if (mvm_sta->mac_id_n_color != 3883e705c121SKalle Valo FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)) 3884e705c121SKalle Valo continue; 3885e705c121SKalle Valo 3886e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx_ap(mvm, sta, disable); 3887e705c121SKalle Valo } 3888ced19f26SSara Sharon 3889ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3890ced19f26SSara Sharon return; 3891ced19f26SSara Sharon 3892ced19f26SSara Sharon /* Need to block/unblock also multicast station */ 3893ced19f26SSara Sharon if (mvmvif->mcast_sta.sta_id != IWL_MVM_INVALID_STA) 3894ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 3895ced19f26SSara Sharon &mvmvif->mcast_sta, disable); 3896ced19f26SSara Sharon 3897ced19f26SSara Sharon /* 3898ced19f26SSara Sharon * Only unblock the broadcast station (FW blocks it for immediate 3899ced19f26SSara Sharon * quiet, not the driver) 3900ced19f26SSara Sharon */ 3901ced19f26SSara Sharon if (!disable && mvmvif->bcast_sta.sta_id != IWL_MVM_INVALID_STA) 3902ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif, 3903ced19f26SSara Sharon &mvmvif->bcast_sta, disable); 3904e705c121SKalle Valo } 3905e705c121SKalle Valo 3906e705c121SKalle Valo void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 3907e705c121SKalle Valo { 3908e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3909e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 3910e705c121SKalle Valo 3911e705c121SKalle Valo rcu_read_lock(); 3912e705c121SKalle Valo 3913e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->ap_sta_id); 3914e705c121SKalle Valo 3915e705c121SKalle Valo if (!WARN_ON(!mvmsta)) 3916e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true); 3917e705c121SKalle Valo 3918e705c121SKalle Valo rcu_read_unlock(); 3919e705c121SKalle Valo } 3920dd32162dSLiad Kaufman 3921dd32162dSLiad Kaufman u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data) 3922dd32162dSLiad Kaufman { 3923dd32162dSLiad Kaufman u16 sn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); 3924dd32162dSLiad Kaufman 3925dd32162dSLiad Kaufman /* 39262f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need 3927dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values. 3928dd32162dSLiad Kaufman */ 3929286ca8ebSLuca Coelho if (mvm->trans->trans_cfg->gen2) 3930dd32162dSLiad Kaufman sn &= 0xff; 3931dd32162dSLiad Kaufman 3932dd32162dSLiad Kaufman return ieee80211_sn_sub(sn, tid_data->next_reclaimed); 3933dd32162dSLiad Kaufman } 3934be82ecd3SAvraham Stern 3935be82ecd3SAvraham Stern int iwl_mvm_add_pasn_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3936be82ecd3SAvraham Stern struct iwl_mvm_int_sta *sta, u8 *addr, u32 cipher, 3937be82ecd3SAvraham Stern u8 *key, u32 key_len) 3938be82ecd3SAvraham Stern { 3939be82ecd3SAvraham Stern int ret; 3940be82ecd3SAvraham Stern u16 queue; 3941be82ecd3SAvraham Stern struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3942be82ecd3SAvraham Stern struct ieee80211_key_conf *keyconf; 3943be82ecd3SAvraham Stern 3944be82ecd3SAvraham Stern ret = iwl_mvm_allocate_int_sta(mvm, sta, 0, 3945be82ecd3SAvraham Stern NL80211_IFTYPE_UNSPECIFIED, 3946be82ecd3SAvraham Stern IWL_STA_LINK); 3947be82ecd3SAvraham Stern if (ret) 3948be82ecd3SAvraham Stern return ret; 3949be82ecd3SAvraham Stern 3950be82ecd3SAvraham Stern ret = iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id, mvmvif->color, 3951be82ecd3SAvraham Stern addr, sta, &queue, 3952be82ecd3SAvraham Stern IWL_MVM_TX_FIFO_BE); 3953be82ecd3SAvraham Stern if (ret) 3954be82ecd3SAvraham Stern goto out; 3955be82ecd3SAvraham Stern 3956be82ecd3SAvraham Stern keyconf = kzalloc(sizeof(*keyconf) + key_len, GFP_KERNEL); 3957be82ecd3SAvraham Stern if (!keyconf) { 3958be82ecd3SAvraham Stern ret = -ENOBUFS; 3959be82ecd3SAvraham Stern goto out; 3960be82ecd3SAvraham Stern } 3961be82ecd3SAvraham Stern 3962be82ecd3SAvraham Stern keyconf->cipher = cipher; 3963be82ecd3SAvraham Stern memcpy(keyconf->key, key, key_len); 3964be82ecd3SAvraham Stern keyconf->keylen = key_len; 3965be82ecd3SAvraham Stern 3966be82ecd3SAvraham Stern ret = iwl_mvm_send_sta_key(mvm, sta->sta_id, keyconf, false, 3967be82ecd3SAvraham Stern 0, NULL, 0, 0, true); 3968be82ecd3SAvraham Stern kfree(keyconf); 3969be82ecd3SAvraham Stern return 0; 3970be82ecd3SAvraham Stern out: 3971be82ecd3SAvraham Stern iwl_mvm_dealloc_int_sta(mvm, sta); 3972be82ecd3SAvraham Stern return ret; 3973be82ecd3SAvraham Stern } 3974