1e705c121SKalle Valo /****************************************************************************** 2e705c121SKalle Valo * 3e705c121SKalle Valo * This file is provided under a dual BSD/GPLv2 license. When using or 4e705c121SKalle Valo * redistributing this file, you may do so under either license. 5e705c121SKalle Valo * 6e705c121SKalle Valo * GPL LICENSE SUMMARY 7e705c121SKalle Valo * 8e705c121SKalle Valo * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH 909856582SLuca Coelho * Copyright(c) 2015 - 2017 Intel Deutschland GmbH 10659ac93dSShaul Triebitz * Copyright(c) 2012 - 2014, 2018 - 2020 Intel Corporation 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 * 30e705c121SKalle Valo * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH 3109856582SLuca Coelho * Copyright(c) 2015 - 2017 Intel Deutschland GmbH 32659ac93dSShaul Triebitz * Copyright(c) 2012 - 2014, 2018 - 2020 Intel Corporation 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 63e705c121SKalle Valo #include <linux/etherdevice.h> 64e705c121SKalle Valo #include <net/mac80211.h> 65e705c121SKalle Valo #include "iwl-io.h" 66e705c121SKalle Valo #include "iwl-prph.h" 67e705c121SKalle Valo #include "fw-api.h" 68e705c121SKalle Valo #include "mvm.h" 69e705c121SKalle Valo #include "time-event.h" 70e705c121SKalle Valo 71e705c121SKalle Valo const u8 iwl_mvm_ac_to_tx_fifo[] = { 72e705c121SKalle Valo IWL_MVM_TX_FIFO_VO, 73e705c121SKalle Valo IWL_MVM_TX_FIFO_VI, 74e705c121SKalle Valo IWL_MVM_TX_FIFO_BE, 75e705c121SKalle Valo IWL_MVM_TX_FIFO_BK, 76e705c121SKalle Valo }; 77e705c121SKalle Valo 78cf6c6ea3SEmmanuel Grumbach const u8 iwl_mvm_ac_to_gen2_tx_fifo[] = { 79cf6c6ea3SEmmanuel Grumbach IWL_GEN2_EDCA_TX_FIFO_VO, 80cf6c6ea3SEmmanuel Grumbach IWL_GEN2_EDCA_TX_FIFO_VI, 81cf6c6ea3SEmmanuel Grumbach IWL_GEN2_EDCA_TX_FIFO_BE, 82cf6c6ea3SEmmanuel Grumbach IWL_GEN2_EDCA_TX_FIFO_BK, 837126b6f2SSara Sharon IWL_GEN2_TRIG_TX_FIFO_VO, 847126b6f2SSara Sharon IWL_GEN2_TRIG_TX_FIFO_VI, 857126b6f2SSara Sharon IWL_GEN2_TRIG_TX_FIFO_BE, 867126b6f2SSara Sharon IWL_GEN2_TRIG_TX_FIFO_BK, 87cf6c6ea3SEmmanuel Grumbach }; 88cf6c6ea3SEmmanuel Grumbach 89e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data { 90e705c121SKalle Valo struct iwl_mvm *mvm; 91e705c121SKalle Valo struct ieee80211_vif *vif; 92e705c121SKalle Valo unsigned long available_mac_ids[BITS_TO_LONGS(NUM_MAC_INDEX_DRIVER)]; 93e705c121SKalle Valo unsigned long available_tsf_ids[BITS_TO_LONGS(NUM_TSF_IDS)]; 94e705c121SKalle Valo enum iwl_tsf_id preferred_tsf; 95e705c121SKalle Valo bool found_vif; 96e705c121SKalle Valo }; 97e705c121SKalle Valo 98e705c121SKalle Valo static void iwl_mvm_mac_tsf_id_iter(void *_data, u8 *mac, 99e705c121SKalle Valo struct ieee80211_vif *vif) 100e705c121SKalle Valo { 101e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data *data = _data; 102e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 103e705c121SKalle Valo u16 min_bi; 104e705c121SKalle Valo 105e705c121SKalle Valo /* Skip the interface for which we are trying to assign a tsf_id */ 106e705c121SKalle Valo if (vif == data->vif) 107e705c121SKalle Valo return; 108e705c121SKalle Valo 109e705c121SKalle Valo /* 110e705c121SKalle Valo * The TSF is a hardware/firmware resource, there are 4 and 111e705c121SKalle Valo * the driver should assign and free them as needed. However, 112e705c121SKalle Valo * there are cases where 2 MACs should share the same TSF ID 113e705c121SKalle Valo * for the purpose of clock sync, an optimization to avoid 114e705c121SKalle Valo * clock drift causing overlapping TBTTs/DTIMs for a GO and 115e705c121SKalle Valo * client in the system. 116e705c121SKalle Valo * 117e705c121SKalle Valo * The firmware will decide according to the MAC type which 118e705c121SKalle Valo * will be the master and slave. Clients that need to sync 119e705c121SKalle Valo * with a remote station will be the master, and an AP or GO 120e705c121SKalle Valo * will be the slave. 121e705c121SKalle Valo * 122e705c121SKalle Valo * Depending on the new interface type it can be slaved to 123e705c121SKalle Valo * or become the master of an existing interface. 124e705c121SKalle Valo */ 125e705c121SKalle Valo switch (data->vif->type) { 126e705c121SKalle Valo case NL80211_IFTYPE_STATION: 127e705c121SKalle Valo /* 128e705c121SKalle Valo * The new interface is a client, so if the one we're iterating 129e705c121SKalle Valo * is an AP, and the beacon interval of the AP is a multiple or 130e705c121SKalle Valo * divisor of the beacon interval of the client, the same TSF 131e705c121SKalle Valo * should be used to avoid drift between the new client and 132e705c121SKalle Valo * existing AP. The existing AP will get drift updates from the 133e705c121SKalle Valo * new client context in this case. 134e705c121SKalle Valo */ 135e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_AP || 136e705c121SKalle Valo data->preferred_tsf != NUM_TSF_IDS || 137e705c121SKalle Valo !test_bit(mvmvif->tsf_id, data->available_tsf_ids)) 138e705c121SKalle Valo break; 139e705c121SKalle Valo 140e705c121SKalle Valo min_bi = min(data->vif->bss_conf.beacon_int, 141e705c121SKalle Valo vif->bss_conf.beacon_int); 142e705c121SKalle Valo 143e705c121SKalle Valo if (!min_bi) 144e705c121SKalle Valo break; 145e705c121SKalle Valo 146e705c121SKalle Valo if ((data->vif->bss_conf.beacon_int - 147e705c121SKalle Valo vif->bss_conf.beacon_int) % min_bi == 0) { 148e705c121SKalle Valo data->preferred_tsf = mvmvif->tsf_id; 149e705c121SKalle Valo return; 150e705c121SKalle Valo } 151e705c121SKalle Valo break; 152e705c121SKalle Valo 153e705c121SKalle Valo case NL80211_IFTYPE_AP: 154e705c121SKalle Valo /* 155e705c121SKalle Valo * The new interface is AP/GO, so if its beacon interval is a 156e705c121SKalle Valo * multiple or a divisor of the beacon interval of an existing 157e705c121SKalle Valo * interface, it should get drift updates from an existing 158e705c121SKalle Valo * client or use the same TSF as an existing GO. There's no 159e705c121SKalle Valo * drift between TSFs internally but if they used different 160e705c121SKalle Valo * TSFs then a new client MAC could update one of them and 161e705c121SKalle Valo * cause drift that way. 162e705c121SKalle Valo */ 163e705c121SKalle Valo if ((vif->type != NL80211_IFTYPE_AP && 164e705c121SKalle Valo vif->type != NL80211_IFTYPE_STATION) || 165e705c121SKalle Valo data->preferred_tsf != NUM_TSF_IDS || 166e705c121SKalle Valo !test_bit(mvmvif->tsf_id, data->available_tsf_ids)) 167e705c121SKalle Valo break; 168e705c121SKalle Valo 169e705c121SKalle Valo min_bi = min(data->vif->bss_conf.beacon_int, 170e705c121SKalle Valo vif->bss_conf.beacon_int); 171e705c121SKalle Valo 172e705c121SKalle Valo if (!min_bi) 173e705c121SKalle Valo break; 174e705c121SKalle Valo 175e705c121SKalle Valo if ((data->vif->bss_conf.beacon_int - 176e705c121SKalle Valo vif->bss_conf.beacon_int) % min_bi == 0) { 177e705c121SKalle Valo data->preferred_tsf = mvmvif->tsf_id; 178e705c121SKalle Valo return; 179e705c121SKalle Valo } 180e705c121SKalle Valo break; 181e705c121SKalle Valo default: 182e705c121SKalle Valo /* 183e705c121SKalle Valo * For all other interface types there's no need to 184e705c121SKalle Valo * take drift into account. Either they're exclusive 185e705c121SKalle Valo * like IBSS and monitor, or we don't care much about 186e705c121SKalle Valo * their TSF (like P2P Device), but we won't be able 187e705c121SKalle Valo * to share the TSF resource. 188e705c121SKalle Valo */ 189e705c121SKalle Valo break; 190e705c121SKalle Valo } 191e705c121SKalle Valo 192e705c121SKalle Valo /* 193e705c121SKalle Valo * Unless we exited above, we can't share the TSF resource 194e705c121SKalle Valo * that the virtual interface we're iterating over is using 195e705c121SKalle Valo * with the new one, so clear the available bit and if this 196e705c121SKalle Valo * was the preferred one, reset that as well. 197e705c121SKalle Valo */ 198e705c121SKalle Valo __clear_bit(mvmvif->tsf_id, data->available_tsf_ids); 199e705c121SKalle Valo 200e705c121SKalle Valo if (data->preferred_tsf == mvmvif->tsf_id) 201e705c121SKalle Valo data->preferred_tsf = NUM_TSF_IDS; 202e705c121SKalle Valo } 203e705c121SKalle Valo 204e705c121SKalle Valo static void iwl_mvm_mac_iface_iterator(void *_data, u8 *mac, 205e705c121SKalle Valo struct ieee80211_vif *vif) 206e705c121SKalle Valo { 207e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data *data = _data; 208e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 209e705c121SKalle Valo 210e705c121SKalle Valo /* Iterator may already find the interface being added -- skip it */ 211e705c121SKalle Valo if (vif == data->vif) { 212e705c121SKalle Valo data->found_vif = true; 213e705c121SKalle Valo return; 214e705c121SKalle Valo } 215e705c121SKalle Valo 216e705c121SKalle Valo /* Mark MAC IDs as used by clearing the available bit, and 217e705c121SKalle Valo * (below) mark TSFs as used if their existing use is not 218e705c121SKalle Valo * compatible with the new interface type. 219e705c121SKalle Valo * No locking or atomic bit operations are needed since the 220e705c121SKalle Valo * data is on the stack of the caller function. 221e705c121SKalle Valo */ 222e705c121SKalle Valo __clear_bit(mvmvif->id, data->available_mac_ids); 223e705c121SKalle Valo 224e705c121SKalle Valo /* find a suitable tsf_id */ 225e705c121SKalle Valo iwl_mvm_mac_tsf_id_iter(_data, mac, vif); 226e705c121SKalle Valo } 227e705c121SKalle Valo 228e705c121SKalle Valo void iwl_mvm_mac_ctxt_recalc_tsf_id(struct iwl_mvm *mvm, 229e705c121SKalle Valo struct ieee80211_vif *vif) 230e705c121SKalle Valo { 231e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 232e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data data = { 233e705c121SKalle Valo .mvm = mvm, 234e705c121SKalle Valo .vif = vif, 235e705c121SKalle Valo .available_tsf_ids = { (1 << NUM_TSF_IDS) - 1 }, 236e705c121SKalle Valo /* no preference yet */ 237e705c121SKalle Valo .preferred_tsf = NUM_TSF_IDS, 238e705c121SKalle Valo }; 239e705c121SKalle Valo 240e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 241e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 242e705c121SKalle Valo iwl_mvm_mac_tsf_id_iter, &data); 243e705c121SKalle Valo 244e705c121SKalle Valo if (data.preferred_tsf != NUM_TSF_IDS) 245e705c121SKalle Valo mvmvif->tsf_id = data.preferred_tsf; 246e705c121SKalle Valo else if (!test_bit(mvmvif->tsf_id, data.available_tsf_ids)) 247e705c121SKalle Valo mvmvif->tsf_id = find_first_bit(data.available_tsf_ids, 248e705c121SKalle Valo NUM_TSF_IDS); 249e705c121SKalle Valo } 250e705c121SKalle Valo 251c8f54701SJohannes Berg int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 252e705c121SKalle Valo { 253e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 254e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data data = { 255e705c121SKalle Valo .mvm = mvm, 256e705c121SKalle Valo .vif = vif, 257e705c121SKalle Valo .available_mac_ids = { (1 << NUM_MAC_INDEX_DRIVER) - 1 }, 258e705c121SKalle Valo .available_tsf_ids = { (1 << NUM_TSF_IDS) - 1 }, 259e705c121SKalle Valo /* no preference yet */ 260e705c121SKalle Valo .preferred_tsf = NUM_TSF_IDS, 261e705c121SKalle Valo .found_vif = false, 262e705c121SKalle Valo }; 2633f7fbc8cSJohannes Berg int ret, i; 264e705c121SKalle Valo 265c8f54701SJohannes Berg lockdep_assert_held(&mvm->mutex); 266c8f54701SJohannes Berg 267e705c121SKalle Valo /* 268e705c121SKalle Valo * Allocate a MAC ID and a TSF for this MAC, along with the queues 269e705c121SKalle Valo * and other resources. 270e705c121SKalle Valo */ 271e705c121SKalle Valo 272e705c121SKalle Valo /* 273e705c121SKalle Valo * Before the iterator, we start with all MAC IDs and TSFs available. 274e705c121SKalle Valo * 275e705c121SKalle Valo * During iteration, all MAC IDs are cleared that are in use by other 276e705c121SKalle Valo * virtual interfaces, and all TSF IDs are cleared that can't be used 277e705c121SKalle Valo * by this new virtual interface because they're used by an interface 278e705c121SKalle Valo * that can't share it with the new one. 279e705c121SKalle Valo * At the same time, we check if there's a preferred TSF in the case 280e705c121SKalle Valo * that we should share it with another interface. 281e705c121SKalle Valo */ 282e705c121SKalle Valo 283e705c121SKalle Valo /* Currently, MAC ID 0 should be used only for the managed/IBSS vif */ 284e705c121SKalle Valo switch (vif->type) { 285e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 286e705c121SKalle Valo break; 287e705c121SKalle Valo case NL80211_IFTYPE_STATION: 288e705c121SKalle Valo if (!vif->p2p) 289e705c121SKalle Valo break; 290e705c121SKalle Valo /* fall through */ 291e705c121SKalle Valo default: 292e705c121SKalle Valo __clear_bit(0, data.available_mac_ids); 293e705c121SKalle Valo } 294e705c121SKalle Valo 295e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 296e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 297e705c121SKalle Valo iwl_mvm_mac_iface_iterator, &data); 298e705c121SKalle Valo 299e705c121SKalle Valo /* 300e705c121SKalle Valo * In the case we're getting here during resume, it's similar to 301e705c121SKalle Valo * firmware restart, and with RESUME_ALL the iterator will find 302e705c121SKalle Valo * the vif being added already. 303e705c121SKalle Valo * We don't want to reassign any IDs in either case since doing 304e705c121SKalle Valo * so would probably assign different IDs (as interfaces aren't 305e705c121SKalle Valo * necessarily added in the same order), but the old IDs were 306e705c121SKalle Valo * preserved anyway, so skip ID assignment for both resume and 307e705c121SKalle Valo * recovery. 308e705c121SKalle Valo */ 309e705c121SKalle Valo if (data.found_vif) 310e705c121SKalle Valo return 0; 311e705c121SKalle Valo 312e705c121SKalle Valo /* Therefore, in recovery, we can't get here */ 313e705c121SKalle Valo if (WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))) 314e705c121SKalle Valo return -EBUSY; 315e705c121SKalle Valo 316e705c121SKalle Valo mvmvif->id = find_first_bit(data.available_mac_ids, 317e705c121SKalle Valo NUM_MAC_INDEX_DRIVER); 318e705c121SKalle Valo if (mvmvif->id == NUM_MAC_INDEX_DRIVER) { 319e705c121SKalle Valo IWL_ERR(mvm, "Failed to init MAC context - no free ID!\n"); 320e705c121SKalle Valo ret = -EIO; 321e705c121SKalle Valo goto exit_fail; 322e705c121SKalle Valo } 323e705c121SKalle Valo 324e705c121SKalle Valo if (data.preferred_tsf != NUM_TSF_IDS) 325e705c121SKalle Valo mvmvif->tsf_id = data.preferred_tsf; 326e705c121SKalle Valo else 327e705c121SKalle Valo mvmvif->tsf_id = find_first_bit(data.available_tsf_ids, 328e705c121SKalle Valo NUM_TSF_IDS); 329e705c121SKalle Valo if (mvmvif->tsf_id == NUM_TSF_IDS) { 330e705c121SKalle Valo IWL_ERR(mvm, "Failed to init MAC context - no free TSF!\n"); 331e705c121SKalle Valo ret = -EIO; 332e705c121SKalle Valo goto exit_fail; 333e705c121SKalle Valo } 334e705c121SKalle Valo 335e705c121SKalle Valo mvmvif->color = 0; 336e705c121SKalle Valo 337e705c121SKalle Valo INIT_LIST_HEAD(&mvmvif->time_event_data.list); 338e705c121SKalle Valo mvmvif->time_event_data.id = TE_MAX; 339e705c121SKalle Valo 3403f7fbc8cSJohannes Berg /* No need to allocate data queues to P2P Device MAC and NAN.*/ 3413f7fbc8cSJohannes Berg if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 342e705c121SKalle Valo return 0; 343e705c121SKalle Valo 344e705c121SKalle Valo /* Allocate the CAB queue for softAP and GO interfaces */ 345fc07bd8cSSara Sharon if (vif->type == NL80211_IFTYPE_AP || 346fc07bd8cSSara Sharon vif->type == NL80211_IFTYPE_ADHOC) { 347e2af3fabSSara Sharon /* 348e2af3fabSSara Sharon * For TVQM this will be overwritten later with the FW assigned 349e2af3fabSSara Sharon * queue value (when queue is enabled). 350e2af3fabSSara Sharon */ 351c8f54701SJohannes Berg mvmvif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE; 352e705c121SKalle Valo } 353e705c121SKalle Valo 3540ae98812SSara Sharon mvmvif->bcast_sta.sta_id = IWL_MVM_INVALID_STA; 3550ae98812SSara Sharon mvmvif->mcast_sta.sta_id = IWL_MVM_INVALID_STA; 3560ae98812SSara Sharon mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 357e705c121SKalle Valo 358e705c121SKalle Valo for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) 359e705c121SKalle Valo mvmvif->smps_requests[i] = IEEE80211_SMPS_AUTOMATIC; 360e705c121SKalle Valo 361e705c121SKalle Valo return 0; 362e705c121SKalle Valo 363e705c121SKalle Valo exit_fail: 364e705c121SKalle Valo memset(mvmvif, 0, sizeof(struct iwl_mvm_vif)); 365e705c121SKalle Valo return ret; 366e705c121SKalle Valo } 367e705c121SKalle Valo 368e705c121SKalle Valo static void iwl_mvm_ack_rates(struct iwl_mvm *mvm, 369e705c121SKalle Valo struct ieee80211_vif *vif, 37057fbcce3SJohannes Berg enum nl80211_band band, 371e705c121SKalle Valo u8 *cck_rates, u8 *ofdm_rates) 372e705c121SKalle Valo { 373e705c121SKalle Valo struct ieee80211_supported_band *sband; 374e705c121SKalle Valo unsigned long basic = vif->bss_conf.basic_rates; 375e705c121SKalle Valo int lowest_present_ofdm = 100; 376e705c121SKalle Valo int lowest_present_cck = 100; 377e705c121SKalle Valo u8 cck = 0; 378e705c121SKalle Valo u8 ofdm = 0; 379e705c121SKalle Valo int i; 380e705c121SKalle Valo 381e705c121SKalle Valo sband = mvm->hw->wiphy->bands[band]; 382e705c121SKalle Valo 383e705c121SKalle Valo for_each_set_bit(i, &basic, BITS_PER_LONG) { 384e705c121SKalle Valo int hw = sband->bitrates[i].hw_value; 385e705c121SKalle Valo if (hw >= IWL_FIRST_OFDM_RATE) { 386e705c121SKalle Valo ofdm |= BIT(hw - IWL_FIRST_OFDM_RATE); 387e705c121SKalle Valo if (lowest_present_ofdm > hw) 388e705c121SKalle Valo lowest_present_ofdm = hw; 389e705c121SKalle Valo } else { 390e705c121SKalle Valo BUILD_BUG_ON(IWL_FIRST_CCK_RATE != 0); 391e705c121SKalle Valo 392e705c121SKalle Valo cck |= BIT(hw); 393e705c121SKalle Valo if (lowest_present_cck > hw) 394e705c121SKalle Valo lowest_present_cck = hw; 395e705c121SKalle Valo } 396e705c121SKalle Valo } 397e705c121SKalle Valo 398e705c121SKalle Valo /* 399e705c121SKalle Valo * Now we've got the basic rates as bitmaps in the ofdm and cck 400e705c121SKalle Valo * variables. This isn't sufficient though, as there might not 401e705c121SKalle Valo * be all the right rates in the bitmap. E.g. if the only basic 402e705c121SKalle Valo * rates are 5.5 Mbps and 11 Mbps, we still need to add 1 Mbps 403e705c121SKalle Valo * and 6 Mbps because the 802.11-2007 standard says in 9.6: 404e705c121SKalle Valo * 405e705c121SKalle Valo * [...] a STA responding to a received frame shall transmit 406e705c121SKalle Valo * its Control Response frame [...] at the highest rate in the 407e705c121SKalle Valo * BSSBasicRateSet parameter that is less than or equal to the 408e705c121SKalle Valo * rate of the immediately previous frame in the frame exchange 409e705c121SKalle Valo * sequence ([...]) and that is of the same modulation class 410e705c121SKalle Valo * ([...]) as the received frame. If no rate contained in the 411e705c121SKalle Valo * BSSBasicRateSet parameter meets these conditions, then the 412e705c121SKalle Valo * control frame sent in response to a received frame shall be 413e705c121SKalle Valo * transmitted at the highest mandatory rate of the PHY that is 414e705c121SKalle Valo * less than or equal to the rate of the received frame, and 415e705c121SKalle Valo * that is of the same modulation class as the received frame. 416e705c121SKalle Valo * 417e705c121SKalle Valo * As a consequence, we need to add all mandatory rates that are 418e705c121SKalle Valo * lower than all of the basic rates to these bitmaps. 419e705c121SKalle Valo */ 420e705c121SKalle Valo 421e705c121SKalle Valo if (IWL_RATE_24M_INDEX < lowest_present_ofdm) 422e705c121SKalle Valo ofdm |= IWL_RATE_BIT_MSK(24) >> IWL_FIRST_OFDM_RATE; 423e705c121SKalle Valo if (IWL_RATE_12M_INDEX < lowest_present_ofdm) 424e705c121SKalle Valo ofdm |= IWL_RATE_BIT_MSK(12) >> IWL_FIRST_OFDM_RATE; 425e705c121SKalle Valo /* 6M already there or needed so always add */ 426e705c121SKalle Valo ofdm |= IWL_RATE_BIT_MSK(6) >> IWL_FIRST_OFDM_RATE; 427e705c121SKalle Valo 428e705c121SKalle Valo /* 429e705c121SKalle Valo * CCK is a bit more complex with DSSS vs. HR/DSSS vs. ERP. 430e705c121SKalle Valo * Note, however: 431e705c121SKalle Valo * - if no CCK rates are basic, it must be ERP since there must 432e705c121SKalle Valo * be some basic rates at all, so they're OFDM => ERP PHY 433e705c121SKalle Valo * (or we're in 5 GHz, and the cck bitmap will never be used) 434e705c121SKalle Valo * - if 11M is a basic rate, it must be ERP as well, so add 5.5M 435e705c121SKalle Valo * - if 5.5M is basic, 1M and 2M are mandatory 436e705c121SKalle Valo * - if 2M is basic, 1M is mandatory 437e705c121SKalle Valo * - if 1M is basic, that's the only valid ACK rate. 438e705c121SKalle Valo * As a consequence, it's not as complicated as it sounds, just add 439e705c121SKalle Valo * any lower rates to the ACK rate bitmap. 440e705c121SKalle Valo */ 441e705c121SKalle Valo if (IWL_RATE_11M_INDEX < lowest_present_cck) 442e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(11) >> IWL_FIRST_CCK_RATE; 443e705c121SKalle Valo if (IWL_RATE_5M_INDEX < lowest_present_cck) 444e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(5) >> IWL_FIRST_CCK_RATE; 445e705c121SKalle Valo if (IWL_RATE_2M_INDEX < lowest_present_cck) 446e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(2) >> IWL_FIRST_CCK_RATE; 447e705c121SKalle Valo /* 1M already there or needed so always add */ 448e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(1) >> IWL_FIRST_CCK_RATE; 449e705c121SKalle Valo 450e705c121SKalle Valo *cck_rates = cck; 451e705c121SKalle Valo *ofdm_rates = ofdm; 452e705c121SKalle Valo } 453e705c121SKalle Valo 454e705c121SKalle Valo static void iwl_mvm_mac_ctxt_set_ht_flags(struct iwl_mvm *mvm, 455e705c121SKalle Valo struct ieee80211_vif *vif, 456e705c121SKalle Valo struct iwl_mac_ctx_cmd *cmd) 457e705c121SKalle Valo { 458e705c121SKalle Valo /* for both sta and ap, ht_operation_mode hold the protection_mode */ 459e705c121SKalle Valo u8 protection_mode = vif->bss_conf.ht_operation_mode & 460e705c121SKalle Valo IEEE80211_HT_OP_MODE_PROTECTION; 461e705c121SKalle Valo /* The fw does not distinguish between ht and fat */ 462e705c121SKalle Valo u32 ht_flag = MAC_PROT_FLG_HT_PROT | MAC_PROT_FLG_FAT_PROT; 463e705c121SKalle Valo 464e705c121SKalle Valo IWL_DEBUG_RATE(mvm, "protection mode set to %d\n", protection_mode); 465e705c121SKalle Valo /* 466e705c121SKalle Valo * See section 9.23.3.1 of IEEE 80211-2012. 467e705c121SKalle Valo * Nongreenfield HT STAs Present is not supported. 468e705c121SKalle Valo */ 469e705c121SKalle Valo switch (protection_mode) { 470e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_NONE: 471e705c121SKalle Valo break; 472e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER: 473e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: 474e705c121SKalle Valo cmd->protection_flags |= cpu_to_le32(ht_flag); 475e705c121SKalle Valo break; 476e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: 477e705c121SKalle Valo /* Protect when channel wider than 20MHz */ 478e705c121SKalle Valo if (vif->bss_conf.chandef.width > NL80211_CHAN_WIDTH_20) 479e705c121SKalle Valo cmd->protection_flags |= cpu_to_le32(ht_flag); 480e705c121SKalle Valo break; 481e705c121SKalle Valo default: 482e705c121SKalle Valo IWL_ERR(mvm, "Illegal protection mode %d\n", 483e705c121SKalle Valo protection_mode); 484e705c121SKalle Valo break; 485e705c121SKalle Valo } 486e705c121SKalle Valo } 487e705c121SKalle Valo 488e705c121SKalle Valo static void iwl_mvm_mac_ctxt_cmd_common(struct iwl_mvm *mvm, 489e705c121SKalle Valo struct ieee80211_vif *vif, 490e705c121SKalle Valo struct iwl_mac_ctx_cmd *cmd, 491e705c121SKalle Valo const u8 *bssid_override, 492e705c121SKalle Valo u32 action) 493e705c121SKalle Valo { 494e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 495e705c121SKalle Valo struct ieee80211_chanctx_conf *chanctx; 496e705c121SKalle Valo bool ht_enabled = !!(vif->bss_conf.ht_operation_mode & 497e705c121SKalle Valo IEEE80211_HT_OP_MODE_PROTECTION); 498e705c121SKalle Valo u8 cck_ack_rates, ofdm_ack_rates; 499e705c121SKalle Valo const u8 *bssid = bssid_override ?: vif->bss_conf.bssid; 500e705c121SKalle Valo int i; 501e705c121SKalle Valo 502e705c121SKalle Valo cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 503e705c121SKalle Valo mvmvif->color)); 504e705c121SKalle Valo cmd->action = cpu_to_le32(action); 505e705c121SKalle Valo 506e705c121SKalle Valo switch (vif->type) { 507e705c121SKalle Valo case NL80211_IFTYPE_STATION: 508e705c121SKalle Valo if (vif->p2p) 509e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_P2P_STA); 510e705c121SKalle Valo else 511e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_BSS_STA); 512e705c121SKalle Valo break; 513e705c121SKalle Valo case NL80211_IFTYPE_AP: 514e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_GO); 515e705c121SKalle Valo break; 516e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 517e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_LISTENER); 518e705c121SKalle Valo break; 519e705c121SKalle Valo case NL80211_IFTYPE_P2P_DEVICE: 520e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_P2P_DEVICE); 521e705c121SKalle Valo break; 522e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 523e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_IBSS); 524e705c121SKalle Valo break; 525e705c121SKalle Valo default: 526e705c121SKalle Valo WARN_ON_ONCE(1); 527e705c121SKalle Valo } 528e705c121SKalle Valo 529e705c121SKalle Valo cmd->tsf_id = cpu_to_le32(mvmvif->tsf_id); 530e705c121SKalle Valo 531e705c121SKalle Valo memcpy(cmd->node_addr, vif->addr, ETH_ALEN); 532e705c121SKalle Valo 533e705c121SKalle Valo if (bssid) 534e705c121SKalle Valo memcpy(cmd->bssid_addr, bssid, ETH_ALEN); 535e705c121SKalle Valo else 536e705c121SKalle Valo eth_broadcast_addr(cmd->bssid_addr); 537e705c121SKalle Valo 538e705c121SKalle Valo rcu_read_lock(); 539e705c121SKalle Valo chanctx = rcu_dereference(vif->chanctx_conf); 540e705c121SKalle Valo iwl_mvm_ack_rates(mvm, vif, chanctx ? chanctx->def.chan->band 54157fbcce3SJohannes Berg : NL80211_BAND_2GHZ, 542e705c121SKalle Valo &cck_ack_rates, &ofdm_ack_rates); 543e705c121SKalle Valo rcu_read_unlock(); 544e705c121SKalle Valo 545e705c121SKalle Valo cmd->cck_rates = cpu_to_le32((u32)cck_ack_rates); 546e705c121SKalle Valo cmd->ofdm_rates = cpu_to_le32((u32)ofdm_ack_rates); 547e705c121SKalle Valo 548e705c121SKalle Valo cmd->cck_short_preamble = 549e705c121SKalle Valo cpu_to_le32(vif->bss_conf.use_short_preamble ? 550e705c121SKalle Valo MAC_FLG_SHORT_PREAMBLE : 0); 551e705c121SKalle Valo cmd->short_slot = 552e705c121SKalle Valo cpu_to_le32(vif->bss_conf.use_short_slot ? 553e705c121SKalle Valo MAC_FLG_SHORT_SLOT : 0); 554e705c121SKalle Valo 55550f56044SIlan Peer cmd->filter_flags = 0; 556bd6f5bd7SAyala Beker 557e705c121SKalle Valo for (i = 0; i < IEEE80211_NUM_ACS; i++) { 558cf6c6ea3SEmmanuel Grumbach u8 txf = iwl_mvm_mac_ac_to_tx_fifo(mvm, i); 559b5e2fe35SNaftali Goldstein u8 ucode_ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 560e705c121SKalle Valo 561b5e2fe35SNaftali Goldstein cmd->ac[ucode_ac].cw_min = 562e705c121SKalle Valo cpu_to_le16(mvmvif->queue_params[i].cw_min); 563b5e2fe35SNaftali Goldstein cmd->ac[ucode_ac].cw_max = 564e705c121SKalle Valo cpu_to_le16(mvmvif->queue_params[i].cw_max); 565b5e2fe35SNaftali Goldstein cmd->ac[ucode_ac].edca_txop = 566e705c121SKalle Valo cpu_to_le16(mvmvif->queue_params[i].txop * 32); 567b5e2fe35SNaftali Goldstein cmd->ac[ucode_ac].aifsn = mvmvif->queue_params[i].aifs; 568b5e2fe35SNaftali Goldstein cmd->ac[ucode_ac].fifos_mask = BIT(txf); 569e705c121SKalle Valo } 570e705c121SKalle Valo 571e705c121SKalle Valo if (vif->bss_conf.qos) 572e705c121SKalle Valo cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_UPDATE_EDCA); 573e705c121SKalle Valo 574e705c121SKalle Valo if (vif->bss_conf.use_cts_prot) 575e705c121SKalle Valo cmd->protection_flags |= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT); 576e705c121SKalle Valo 577e705c121SKalle Valo IWL_DEBUG_RATE(mvm, "use_cts_prot %d, ht_operation_mode %d\n", 578e705c121SKalle Valo vif->bss_conf.use_cts_prot, 579e705c121SKalle Valo vif->bss_conf.ht_operation_mode); 580e705c121SKalle Valo if (vif->bss_conf.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) 581e705c121SKalle Valo cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_TGN); 582e705c121SKalle Valo if (ht_enabled) 583e705c121SKalle Valo iwl_mvm_mac_ctxt_set_ht_flags(mvm, vif, cmd); 584e705c121SKalle Valo } 585e705c121SKalle Valo 586e705c121SKalle Valo static int iwl_mvm_mac_ctxt_send_cmd(struct iwl_mvm *mvm, 587e705c121SKalle Valo struct iwl_mac_ctx_cmd *cmd) 588e705c121SKalle Valo { 589e705c121SKalle Valo int ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, 0, 590e705c121SKalle Valo sizeof(*cmd), cmd); 591e705c121SKalle Valo if (ret) 592e705c121SKalle Valo IWL_ERR(mvm, "Failed to send MAC context (action:%d): %d\n", 593e705c121SKalle Valo le32_to_cpu(cmd->action), ret); 594e705c121SKalle Valo return ret; 595e705c121SKalle Valo } 596e705c121SKalle Valo 597e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_sta(struct iwl_mvm *mvm, 598e705c121SKalle Valo struct ieee80211_vif *vif, 599e705c121SKalle Valo u32 action, bool force_assoc_off, 600e705c121SKalle Valo const u8 *bssid_override) 601e705c121SKalle Valo { 602e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 603e705c121SKalle Valo struct iwl_mac_data_sta *ctxt_sta; 604e705c121SKalle Valo 605e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_STATION); 606e705c121SKalle Valo 607e705c121SKalle Valo /* Fill the common data for all mac context types */ 608e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, bssid_override, action); 609e705c121SKalle Valo 610e705c121SKalle Valo if (vif->p2p) { 611e705c121SKalle Valo struct ieee80211_p2p_noa_attr *noa = 612e705c121SKalle Valo &vif->bss_conf.p2p_noa_attr; 613e705c121SKalle Valo 614e705c121SKalle Valo cmd.p2p_sta.ctwin = cpu_to_le32(noa->oppps_ctwindow & 615e705c121SKalle Valo IEEE80211_P2P_OPPPS_CTWINDOW_MASK); 616e705c121SKalle Valo ctxt_sta = &cmd.p2p_sta.sta; 617e705c121SKalle Valo } else { 618e705c121SKalle Valo ctxt_sta = &cmd.sta; 619e705c121SKalle Valo } 620e705c121SKalle Valo 621e705c121SKalle Valo /* We need the dtim_period to set the MAC as associated */ 622e705c121SKalle Valo if (vif->bss_conf.assoc && vif->bss_conf.dtim_period && 623e705c121SKalle Valo !force_assoc_off) { 62450f56044SIlan Peer struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 62550f56044SIlan Peer u8 ap_sta_id = mvmvif->ap_sta_id; 626e705c121SKalle Valo u32 dtim_offs; 627e705c121SKalle Valo 628e705c121SKalle Valo /* 629e705c121SKalle Valo * The DTIM count counts down, so when it is N that means N 630e705c121SKalle Valo * more beacon intervals happen until the DTIM TBTT. Therefore 631e705c121SKalle Valo * add this to the current time. If that ends up being in the 632e705c121SKalle Valo * future, the firmware will handle it. 633e705c121SKalle Valo * 634e705c121SKalle Valo * Also note that the system_timestamp (which we get here as 635e705c121SKalle Valo * "sync_device_ts") and TSF timestamp aren't at exactly the 636e705c121SKalle Valo * same offset in the frame -- the TSF is at the first symbol 637e705c121SKalle Valo * of the TSF, the system timestamp is at signal acquisition 638e705c121SKalle Valo * time. This means there's an offset between them of at most 639e705c121SKalle Valo * a few hundred microseconds (24 * 8 bits + PLCP time gives 640e705c121SKalle Valo * 384us in the longest case), this is currently not relevant 641e705c121SKalle Valo * as the firmware wakes up around 2ms before the TBTT. 642e705c121SKalle Valo */ 643e705c121SKalle Valo dtim_offs = vif->bss_conf.sync_dtim_count * 644e705c121SKalle Valo vif->bss_conf.beacon_int; 645e705c121SKalle Valo /* convert TU to usecs */ 646e705c121SKalle Valo dtim_offs *= 1024; 647e705c121SKalle Valo 648e705c121SKalle Valo ctxt_sta->dtim_tsf = 649e705c121SKalle Valo cpu_to_le64(vif->bss_conf.sync_tsf + dtim_offs); 650e705c121SKalle Valo ctxt_sta->dtim_time = 651e705c121SKalle Valo cpu_to_le32(vif->bss_conf.sync_device_ts + dtim_offs); 652b5669727SAvraham Stern ctxt_sta->assoc_beacon_arrive_time = 653b5669727SAvraham Stern cpu_to_le32(vif->bss_conf.sync_device_ts); 654e705c121SKalle Valo 655e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "DTIM TBTT is 0x%llx/0x%x, offset %d\n", 656e705c121SKalle Valo le64_to_cpu(ctxt_sta->dtim_tsf), 657e705c121SKalle Valo le32_to_cpu(ctxt_sta->dtim_time), 658e705c121SKalle Valo dtim_offs); 659e705c121SKalle Valo 660e705c121SKalle Valo ctxt_sta->is_assoc = cpu_to_le32(1); 66150f56044SIlan Peer 66250f56044SIlan Peer /* 66350f56044SIlan Peer * allow multicast data frames only as long as the station is 66450f56044SIlan Peer * authorized, i.e., GTK keys are already installed (if needed) 66550f56044SIlan Peer */ 666be9ae34eSNathan Errera if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 66750f56044SIlan Peer struct ieee80211_sta *sta; 66850f56044SIlan Peer 66950f56044SIlan Peer rcu_read_lock(); 67050f56044SIlan Peer 67150f56044SIlan Peer sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 67250f56044SIlan Peer if (!IS_ERR_OR_NULL(sta)) { 67350f56044SIlan Peer struct iwl_mvm_sta *mvmsta = 67450f56044SIlan Peer iwl_mvm_sta_from_mac80211(sta); 67550f56044SIlan Peer 67650f56044SIlan Peer if (mvmsta->sta_state == 67750f56044SIlan Peer IEEE80211_STA_AUTHORIZED) 67850f56044SIlan Peer cmd.filter_flags |= 67950f56044SIlan Peer cpu_to_le32(MAC_FILTER_ACCEPT_GRP); 68050f56044SIlan Peer } 68150f56044SIlan Peer 68250f56044SIlan Peer rcu_read_unlock(); 68350f56044SIlan Peer } 684e705c121SKalle Valo } else { 685e705c121SKalle Valo ctxt_sta->is_assoc = cpu_to_le32(0); 686e705c121SKalle Valo 687e705c121SKalle Valo /* Allow beacons to pass through as long as we are not 688e705c121SKalle Valo * associated, or we do not have dtim period information. 689e705c121SKalle Valo */ 690e705c121SKalle Valo cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); 691e705c121SKalle Valo } 692e705c121SKalle Valo 693e705c121SKalle Valo ctxt_sta->bi = cpu_to_le32(vif->bss_conf.beacon_int); 694e705c121SKalle Valo ctxt_sta->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int * 695e705c121SKalle Valo vif->bss_conf.dtim_period); 696e705c121SKalle Valo 697e705c121SKalle Valo ctxt_sta->listen_interval = cpu_to_le32(mvm->hw->conf.listen_interval); 698e705c121SKalle Valo ctxt_sta->assoc_id = cpu_to_le32(vif->bss_conf.aid); 699e705c121SKalle Valo 700e705c121SKalle Valo if (vif->probe_req_reg && vif->bss_conf.assoc && vif->p2p) 701e705c121SKalle Valo cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); 702e705c121SKalle Valo 7039394662aSLiad Kaufman if (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax) { 704514c3069SLuca Coelho cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_11AX); 705659ac93dSShaul Triebitz if (vif->bss_conf.twt_requester && IWL_MVM_USE_TWT) { 706866a6a85SEmmanuel Grumbach ctxt_sta->data_policy |= cpu_to_le32(TWT_SUPPORTED); 707659ac93dSShaul Triebitz if (vif->bss_conf.twt_protected) 708659ac93dSShaul Triebitz ctxt_sta->data_policy |= 709659ac93dSShaul Triebitz cpu_to_le32(PROTECTED_TWT_SUPPORTED); 710659ac93dSShaul Triebitz } 711d91d9b94SEmmanuel Grumbach } 712d91d9b94SEmmanuel Grumbach 713514c3069SLuca Coelho 714e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 715e705c121SKalle Valo } 716e705c121SKalle Valo 717e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_listener(struct iwl_mvm *mvm, 718e705c121SKalle Valo struct ieee80211_vif *vif, 719e705c121SKalle Valo u32 action) 720e705c121SKalle Valo { 721e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 722b13f43a4SEmmanuel Grumbach u32 tfd_queue_msk = BIT(mvm->snif_queue); 723c8f54701SJohannes Berg int ret; 724e705c121SKalle Valo 725e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_MONITOR); 726e705c121SKalle Valo 727e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 728e705c121SKalle Valo 729e705c121SKalle Valo cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROMISC | 730e705c121SKalle Valo MAC_FILTER_IN_CONTROL_AND_MGMT | 731e705c121SKalle Valo MAC_FILTER_IN_BEACON | 732e705c121SKalle Valo MAC_FILTER_IN_PROBE_REQUEST | 73350f56044SIlan Peer MAC_FILTER_IN_CRC32 | 73450f56044SIlan Peer MAC_FILTER_ACCEPT_GRP); 735e705c121SKalle Valo ieee80211_hw_set(mvm->hw, RX_INCLUDES_FCS); 736e705c121SKalle Valo 7370e39eb03SChaya Rachel Ivgi /* Allocate sniffer station */ 7380e39eb03SChaya Rachel Ivgi ret = iwl_mvm_allocate_int_sta(mvm, &mvm->snif_sta, tfd_queue_msk, 739ced19f26SSara Sharon vif->type, IWL_STA_GENERAL_PURPOSE); 7400e39eb03SChaya Rachel Ivgi if (ret) 7410e39eb03SChaya Rachel Ivgi return ret; 7420e39eb03SChaya Rachel Ivgi 743e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 744e705c121SKalle Valo } 745e705c121SKalle Valo 746e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_ibss(struct iwl_mvm *mvm, 747e705c121SKalle Valo struct ieee80211_vif *vif, 748e705c121SKalle Valo u32 action) 749e705c121SKalle Valo { 750e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 751e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 752e705c121SKalle Valo 753e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_ADHOC); 754e705c121SKalle Valo 755e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 756e705c121SKalle Valo 757e705c121SKalle Valo cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_BEACON | 75850f56044SIlan Peer MAC_FILTER_IN_PROBE_REQUEST | 75950f56044SIlan Peer MAC_FILTER_ACCEPT_GRP); 760e705c121SKalle Valo 761e705c121SKalle Valo /* cmd.ibss.beacon_time/cmd.ibss.beacon_tsf are curently ignored */ 762e705c121SKalle Valo cmd.ibss.bi = cpu_to_le32(vif->bss_conf.beacon_int); 763e705c121SKalle Valo 764e705c121SKalle Valo /* TODO: Assumes that the beacon id == mac context id */ 765e705c121SKalle Valo cmd.ibss.beacon_template = cpu_to_le32(mvmvif->id); 766e705c121SKalle Valo 767e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 768e705c121SKalle Valo } 769e705c121SKalle Valo 770e705c121SKalle Valo struct iwl_mvm_go_iterator_data { 771e705c121SKalle Valo bool go_active; 772e705c121SKalle Valo }; 773e705c121SKalle Valo 774e705c121SKalle Valo static void iwl_mvm_go_iterator(void *_data, u8 *mac, struct ieee80211_vif *vif) 775e705c121SKalle Valo { 776e705c121SKalle Valo struct iwl_mvm_go_iterator_data *data = _data; 777e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 778e705c121SKalle Valo 779e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP && vif->p2p && 780e705c121SKalle Valo mvmvif->ap_ibss_active) 781e705c121SKalle Valo data->go_active = true; 782e705c121SKalle Valo } 783e705c121SKalle Valo 784e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_p2p_device(struct iwl_mvm *mvm, 785e705c121SKalle Valo struct ieee80211_vif *vif, 786e705c121SKalle Valo u32 action) 787e705c121SKalle Valo { 788e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 789e705c121SKalle Valo struct iwl_mvm_go_iterator_data data = {}; 790e705c121SKalle Valo 791e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_P2P_DEVICE); 792e705c121SKalle Valo 793e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 794e705c121SKalle Valo 795e705c121SKalle Valo /* Override the filter flags to accept only probe requests */ 796e705c121SKalle Valo cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); 797e705c121SKalle Valo 798e705c121SKalle Valo /* 799e705c121SKalle Valo * This flag should be set to true when the P2P Device is 800e705c121SKalle Valo * discoverable and there is at least another active P2P GO. Settings 801e705c121SKalle Valo * this flag will allow the P2P Device to be discoverable on other 802e705c121SKalle Valo * channels in addition to its listen channel. 803e705c121SKalle Valo * Note that this flag should not be set in other cases as it opens the 804e705c121SKalle Valo * Rx filters on all MAC and increases the number of interrupts. 805e705c121SKalle Valo */ 806e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 807e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 808e705c121SKalle Valo iwl_mvm_go_iterator, &data); 809e705c121SKalle Valo 810e705c121SKalle Valo cmd.p2p_dev.is_disc_extended = cpu_to_le32(data.go_active ? 1 : 0); 811e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 812e705c121SKalle Valo } 813e705c121SKalle Valo 814138664a3SSara Sharon void iwl_mvm_mac_ctxt_set_tim(struct iwl_mvm *mvm, 8158364fbb4SSara Sharon __le32 *tim_index, __le32 *tim_size, 816e705c121SKalle Valo u8 *beacon, u32 frame_size) 817e705c121SKalle Valo { 818e705c121SKalle Valo u32 tim_idx; 819e705c121SKalle Valo struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon; 820e705c121SKalle Valo 821e705c121SKalle Valo /* The index is relative to frame start but we start looking at the 822e705c121SKalle Valo * variable-length part of the beacon. */ 823e705c121SKalle Valo tim_idx = mgmt->u.beacon.variable - beacon; 824e705c121SKalle Valo 825e705c121SKalle Valo /* Parse variable-length elements of beacon to find WLAN_EID_TIM */ 826e705c121SKalle Valo while ((tim_idx < (frame_size - 2)) && 827e705c121SKalle Valo (beacon[tim_idx] != WLAN_EID_TIM)) 828e705c121SKalle Valo tim_idx += beacon[tim_idx+1] + 2; 829e705c121SKalle Valo 830e705c121SKalle Valo /* If TIM field was found, set variables */ 831e705c121SKalle Valo if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) { 8328364fbb4SSara Sharon *tim_index = cpu_to_le32(tim_idx); 8338364fbb4SSara Sharon *tim_size = cpu_to_le32((u32)beacon[tim_idx + 1]); 834e705c121SKalle Valo } else { 835e705c121SKalle Valo IWL_WARN(mvm, "Unable to find TIM Element in beacon\n"); 836e705c121SKalle Valo } 837e705c121SKalle Valo } 838e705c121SKalle Valo 839d3a108a4SAndrei Otcheretianski static u32 iwl_mvm_find_ie_offset(u8 *beacon, u8 eid, u32 frame_size) 840d3a108a4SAndrei Otcheretianski { 841d3a108a4SAndrei Otcheretianski struct ieee80211_mgmt *mgmt = (void *)beacon; 842d3a108a4SAndrei Otcheretianski const u8 *ie; 843d3a108a4SAndrei Otcheretianski 844d3a108a4SAndrei Otcheretianski if (WARN_ON_ONCE(frame_size <= (mgmt->u.beacon.variable - beacon))) 845d3a108a4SAndrei Otcheretianski return 0; 846d3a108a4SAndrei Otcheretianski 847d3a108a4SAndrei Otcheretianski frame_size -= mgmt->u.beacon.variable - beacon; 848d3a108a4SAndrei Otcheretianski 849d3a108a4SAndrei Otcheretianski ie = cfg80211_find_ie(eid, mgmt->u.beacon.variable, frame_size); 850d3a108a4SAndrei Otcheretianski if (!ie) 851d3a108a4SAndrei Otcheretianski return 0; 852d3a108a4SAndrei Otcheretianski 853d3a108a4SAndrei Otcheretianski return ie - beacon; 854d3a108a4SAndrei Otcheretianski } 855d3a108a4SAndrei Otcheretianski 856138664a3SSara Sharon u8 iwl_mvm_mac_ctxt_get_lowest_rate(struct ieee80211_tx_info *info, 8576ca33f8bSHaim Dreyfuss struct ieee80211_vif *vif) 8586ca33f8bSHaim Dreyfuss { 8596ca33f8bSHaim Dreyfuss u8 rate; 860d558b7f8STova Mussai if (info->band == NL80211_BAND_2GHZ && !vif->p2p) 8616ca33f8bSHaim Dreyfuss rate = IWL_FIRST_CCK_RATE; 862d558b7f8STova Mussai else 863d558b7f8STova Mussai rate = IWL_FIRST_OFDM_RATE; 8646ca33f8bSHaim Dreyfuss 8656ca33f8bSHaim Dreyfuss return rate; 8666ca33f8bSHaim Dreyfuss } 8676ca33f8bSHaim Dreyfuss 86809856582SLuca Coelho static void iwl_mvm_mac_ctxt_set_tx(struct iwl_mvm *mvm, 869e705c121SKalle Valo struct ieee80211_vif *vif, 87009856582SLuca Coelho struct sk_buff *beacon, 87109856582SLuca Coelho struct iwl_tx_cmd *tx) 872e705c121SKalle Valo { 873e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 874e705c121SKalle Valo struct ieee80211_tx_info *info; 8756ca33f8bSHaim Dreyfuss u8 rate; 8766ca33f8bSHaim Dreyfuss u32 tx_flags; 877e705c121SKalle Valo 878e705c121SKalle Valo info = IEEE80211_SKB_CB(beacon); 879e705c121SKalle Valo 880e705c121SKalle Valo /* Set up TX command fields */ 88109856582SLuca Coelho tx->len = cpu_to_le16((u16)beacon->len); 88209856582SLuca Coelho tx->sta_id = mvmvif->bcast_sta.sta_id; 88309856582SLuca Coelho tx->life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE); 884e705c121SKalle Valo tx_flags = TX_CMD_FLG_SEQ_CTL | TX_CMD_FLG_TSF; 885e705c121SKalle Valo tx_flags |= 886e705c121SKalle Valo iwl_mvm_bt_coex_tx_prio(mvm, (void *)beacon->data, info, 0) << 887e705c121SKalle Valo TX_CMD_FLG_BT_PRIO_POS; 88809856582SLuca Coelho tx->tx_flags = cpu_to_le32(tx_flags); 889e705c121SKalle Valo 8901e3c3c35SEmmanuel Grumbach if (!fw_has_capa(&mvm->fw->ucode_capa, 891656fca00SAvraham Stern IWL_UCODE_TLV_CAPA_BEACON_ANT_SELECTION)) 892656fca00SAvraham Stern iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); 893e705c121SKalle Valo 89409856582SLuca Coelho tx->rate_n_flags = 895e705c121SKalle Valo cpu_to_le32(BIT(mvm->mgmt_last_antenna_idx) << 896e705c121SKalle Valo RATE_MCS_ANT_POS); 897e705c121SKalle Valo 8986ca33f8bSHaim Dreyfuss rate = iwl_mvm_mac_ctxt_get_lowest_rate(info, vif); 899e705c121SKalle Valo 90009856582SLuca Coelho tx->rate_n_flags |= cpu_to_le32(iwl_mvm_mac80211_idx_to_hwrate(rate)); 9016ca33f8bSHaim Dreyfuss if (rate == IWL_FIRST_CCK_RATE) 9026ca33f8bSHaim Dreyfuss tx->rate_n_flags |= cpu_to_le32(RATE_MCS_CCK_MSK); 9036ca33f8bSHaim Dreyfuss 90409856582SLuca Coelho } 905e705c121SKalle Valo 906138664a3SSara Sharon int iwl_mvm_mac_ctxt_send_beacon_cmd(struct iwl_mvm *mvm, 90709856582SLuca Coelho struct sk_buff *beacon, 90809856582SLuca Coelho void *data, int len) 90909856582SLuca Coelho { 91009856582SLuca Coelho struct iwl_host_cmd cmd = { 91109856582SLuca Coelho .id = BEACON_TEMPLATE_CMD, 91209856582SLuca Coelho .flags = CMD_ASYNC, 91309856582SLuca Coelho }; 91409856582SLuca Coelho 91509856582SLuca Coelho cmd.len[0] = len; 91609856582SLuca Coelho cmd.data[0] = data; 917e705c121SKalle Valo cmd.dataflags[0] = 0; 91809856582SLuca Coelho cmd.len[1] = beacon->len; 919e705c121SKalle Valo cmd.data[1] = beacon->data; 920e705c121SKalle Valo cmd.dataflags[1] = IWL_HCMD_DFL_DUP; 921e705c121SKalle Valo 922e705c121SKalle Valo return iwl_mvm_send_cmd(mvm, &cmd); 923e705c121SKalle Valo } 924e705c121SKalle Valo 92509856582SLuca Coelho static int iwl_mvm_mac_ctxt_send_beacon_v6(struct iwl_mvm *mvm, 92609856582SLuca Coelho struct ieee80211_vif *vif, 92709856582SLuca Coelho struct sk_buff *beacon) 92809856582SLuca Coelho { 92909856582SLuca Coelho struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 93009856582SLuca Coelho struct iwl_mac_beacon_cmd_v6 beacon_cmd = {}; 93109856582SLuca Coelho 93209856582SLuca Coelho iwl_mvm_mac_ctxt_set_tx(mvm, vif, beacon, &beacon_cmd.tx); 93309856582SLuca Coelho 93409856582SLuca Coelho beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); 93509856582SLuca Coelho 93609856582SLuca Coelho if (vif->type == NL80211_IFTYPE_AP) 93709856582SLuca Coelho iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, 93809856582SLuca Coelho &beacon_cmd.tim_size, 93909856582SLuca Coelho beacon->data, beacon->len); 94009856582SLuca Coelho 94109856582SLuca Coelho return iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, 94209856582SLuca Coelho sizeof(beacon_cmd)); 94309856582SLuca Coelho } 94409856582SLuca Coelho 94509856582SLuca Coelho static int iwl_mvm_mac_ctxt_send_beacon_v7(struct iwl_mvm *mvm, 94609856582SLuca Coelho struct ieee80211_vif *vif, 94709856582SLuca Coelho struct sk_buff *beacon) 94809856582SLuca Coelho { 94909856582SLuca Coelho struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 95009856582SLuca Coelho struct iwl_mac_beacon_cmd_v7 beacon_cmd = {}; 95109856582SLuca Coelho 95209856582SLuca Coelho iwl_mvm_mac_ctxt_set_tx(mvm, vif, beacon, &beacon_cmd.tx); 95309856582SLuca Coelho 95409856582SLuca Coelho beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); 95509856582SLuca Coelho 95609856582SLuca Coelho if (vif->type == NL80211_IFTYPE_AP) 95709856582SLuca Coelho iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, 95809856582SLuca Coelho &beacon_cmd.tim_size, 95909856582SLuca Coelho beacon->data, beacon->len); 96009856582SLuca Coelho 96109856582SLuca Coelho beacon_cmd.csa_offset = 96209856582SLuca Coelho cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, 96309856582SLuca Coelho WLAN_EID_CHANNEL_SWITCH, 96409856582SLuca Coelho beacon->len)); 96509856582SLuca Coelho beacon_cmd.ecsa_offset = 96609856582SLuca Coelho cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, 96709856582SLuca Coelho WLAN_EID_EXT_CHANSWITCH_ANN, 96809856582SLuca Coelho beacon->len)); 96909856582SLuca Coelho 97009856582SLuca Coelho return iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, 97109856582SLuca Coelho sizeof(beacon_cmd)); 97209856582SLuca Coelho } 97309856582SLuca Coelho 9746ca33f8bSHaim Dreyfuss static int iwl_mvm_mac_ctxt_send_beacon_v9(struct iwl_mvm *mvm, 97509856582SLuca Coelho struct ieee80211_vif *vif, 97609856582SLuca Coelho struct sk_buff *beacon) 97709856582SLuca Coelho { 97809856582SLuca Coelho struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 9796ca33f8bSHaim Dreyfuss struct ieee80211_tx_info *info = IEEE80211_SKB_CB(beacon); 98009856582SLuca Coelho struct iwl_mac_beacon_cmd beacon_cmd = {}; 9816ca33f8bSHaim Dreyfuss u8 rate = iwl_mvm_mac_ctxt_get_lowest_rate(info, vif); 9826ca33f8bSHaim Dreyfuss u16 flags; 98309856582SLuca Coelho 9846ca33f8bSHaim Dreyfuss flags = iwl_mvm_mac80211_idx_to_hwrate(rate); 9856ca33f8bSHaim Dreyfuss 9866ca33f8bSHaim Dreyfuss if (rate == IWL_FIRST_CCK_RATE) 9876ca33f8bSHaim Dreyfuss flags |= IWL_MAC_BEACON_CCK; 9886ca33f8bSHaim Dreyfuss 9896ca33f8bSHaim Dreyfuss beacon_cmd.flags = cpu_to_le16(flags); 99009856582SLuca Coelho beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len); 99109856582SLuca Coelho beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); 99209856582SLuca Coelho 99309856582SLuca Coelho if (vif->type == NL80211_IFTYPE_AP) 9946ca33f8bSHaim Dreyfuss iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, 99509856582SLuca Coelho &beacon_cmd.tim_size, 99609856582SLuca Coelho beacon->data, beacon->len); 99709856582SLuca Coelho 99809856582SLuca Coelho beacon_cmd.csa_offset = 99909856582SLuca Coelho cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, 100009856582SLuca Coelho WLAN_EID_CHANNEL_SWITCH, 100109856582SLuca Coelho beacon->len)); 100209856582SLuca Coelho beacon_cmd.ecsa_offset = 100309856582SLuca Coelho cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, 100409856582SLuca Coelho WLAN_EID_EXT_CHANSWITCH_ANN, 100509856582SLuca Coelho beacon->len)); 100609856582SLuca Coelho 100709856582SLuca Coelho return iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, 100809856582SLuca Coelho sizeof(beacon_cmd)); 100909856582SLuca Coelho } 101009856582SLuca Coelho 1011138664a3SSara Sharon int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm, 101209856582SLuca Coelho struct ieee80211_vif *vif, 101309856582SLuca Coelho struct sk_buff *beacon) 101409856582SLuca Coelho { 101509856582SLuca Coelho if (WARN_ON(!beacon)) 101609856582SLuca Coelho return -EINVAL; 101709856582SLuca Coelho 101850386305SSara Sharon if (IWL_MVM_NON_TRANSMITTING_AP) 101950386305SSara Sharon return 0; 102050386305SSara Sharon 102109856582SLuca Coelho if (!fw_has_capa(&mvm->fw->ucode_capa, 102209856582SLuca Coelho IWL_UCODE_TLV_CAPA_CSA_AND_TBTT_OFFLOAD)) 102309856582SLuca Coelho return iwl_mvm_mac_ctxt_send_beacon_v6(mvm, vif, beacon); 102409856582SLuca Coelho 10256ca33f8bSHaim Dreyfuss if (fw_has_api(&mvm->fw->ucode_capa, 10266ca33f8bSHaim Dreyfuss IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE)) 10276ca33f8bSHaim Dreyfuss return iwl_mvm_mac_ctxt_send_beacon_v9(mvm, vif, beacon); 102809856582SLuca Coelho 10296ca33f8bSHaim Dreyfuss return iwl_mvm_mac_ctxt_send_beacon_v7(mvm, vif, beacon); 103009856582SLuca Coelho } 103109856582SLuca Coelho 1032e705c121SKalle Valo /* The beacon template for the AP/GO/IBSS has changed and needs update */ 1033e705c121SKalle Valo int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm, 1034e705c121SKalle Valo struct ieee80211_vif *vif) 1035e705c121SKalle Valo { 1036e705c121SKalle Valo struct sk_buff *beacon; 1037e705c121SKalle Valo int ret; 1038e705c121SKalle Valo 1039e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_AP && 1040e705c121SKalle Valo vif->type != NL80211_IFTYPE_ADHOC); 1041e705c121SKalle Valo 1042e705c121SKalle Valo beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL); 1043e705c121SKalle Valo if (!beacon) 1044e705c121SKalle Valo return -ENOMEM; 1045e705c121SKalle Valo 104690a12829SSara Sharon #ifdef CONFIG_IWLWIFI_DEBUGFS 104790a12829SSara Sharon if (mvm->beacon_inject_active) 104890a12829SSara Sharon return -EBUSY; 104990a12829SSara Sharon #endif 105090a12829SSara Sharon 1051e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_send_beacon(mvm, vif, beacon); 1052e705c121SKalle Valo dev_kfree_skb(beacon); 1053e705c121SKalle Valo return ret; 1054e705c121SKalle Valo } 1055e705c121SKalle Valo 1056e705c121SKalle Valo struct iwl_mvm_mac_ap_iterator_data { 1057e705c121SKalle Valo struct iwl_mvm *mvm; 1058e705c121SKalle Valo struct ieee80211_vif *vif; 1059e705c121SKalle Valo u32 beacon_device_ts; 1060e705c121SKalle Valo u16 beacon_int; 1061e705c121SKalle Valo }; 1062e705c121SKalle Valo 1063e705c121SKalle Valo /* Find the beacon_device_ts and beacon_int for a managed interface */ 1064e705c121SKalle Valo static void iwl_mvm_mac_ap_iterator(void *_data, u8 *mac, 1065e705c121SKalle Valo struct ieee80211_vif *vif) 1066e705c121SKalle Valo { 1067e705c121SKalle Valo struct iwl_mvm_mac_ap_iterator_data *data = _data; 1068e705c121SKalle Valo 1069e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc) 1070e705c121SKalle Valo return; 1071e705c121SKalle Valo 1072e705c121SKalle Valo /* Station client has higher priority over P2P client*/ 1073e705c121SKalle Valo if (vif->p2p && data->beacon_device_ts) 1074e705c121SKalle Valo return; 1075e705c121SKalle Valo 1076e705c121SKalle Valo data->beacon_device_ts = vif->bss_conf.sync_device_ts; 1077e705c121SKalle Valo data->beacon_int = vif->bss_conf.beacon_int; 1078e705c121SKalle Valo } 1079e705c121SKalle Valo 1080e705c121SKalle Valo /* 1081e705c121SKalle Valo * Fill the specific data for mac context of type AP of P2P GO 1082e705c121SKalle Valo */ 1083e705c121SKalle Valo static void iwl_mvm_mac_ctxt_cmd_fill_ap(struct iwl_mvm *mvm, 1084e705c121SKalle Valo struct ieee80211_vif *vif, 1085186cd49aSJohannes Berg struct iwl_mac_ctx_cmd *cmd, 1086e705c121SKalle Valo struct iwl_mac_data_ap *ctxt_ap, 1087e705c121SKalle Valo bool add) 1088e705c121SKalle Valo { 1089e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1090e705c121SKalle Valo struct iwl_mvm_mac_ap_iterator_data data = { 1091e705c121SKalle Valo .mvm = mvm, 1092e705c121SKalle Valo .vif = vif, 1093e705c121SKalle Valo .beacon_device_ts = 0 1094e705c121SKalle Valo }; 1095e705c121SKalle Valo 1096186cd49aSJohannes Berg /* in AP mode, the MCAST FIFO takes the EDCA params from VO */ 1097186cd49aSJohannes Berg cmd->ac[IWL_MVM_TX_FIFO_VO].fifos_mask |= BIT(IWL_MVM_TX_FIFO_MCAST); 1098186cd49aSJohannes Berg 1099186cd49aSJohannes Berg /* 1100186cd49aSJohannes Berg * in AP mode, pass probe requests and beacons from other APs 1101186cd49aSJohannes Berg * (needed for ht protection); when there're no any associated 1102186cd49aSJohannes Berg * station don't ask FW to pass beacons to prevent unnecessary 1103186cd49aSJohannes Berg * wake-ups. 1104186cd49aSJohannes Berg */ 1105186cd49aSJohannes Berg cmd->filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); 1106186cd49aSJohannes Berg if (mvmvif->ap_assoc_sta_count || !mvm->drop_bcn_ap_mode) { 1107186cd49aSJohannes Berg cmd->filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); 1108186cd49aSJohannes Berg IWL_DEBUG_HC(mvm, "Asking FW to pass beacons\n"); 1109186cd49aSJohannes Berg } else { 1110186cd49aSJohannes Berg IWL_DEBUG_HC(mvm, "No need to receive beacons\n"); 1111186cd49aSJohannes Berg } 1112186cd49aSJohannes Berg 1113e705c121SKalle Valo ctxt_ap->bi = cpu_to_le32(vif->bss_conf.beacon_int); 1114e705c121SKalle Valo ctxt_ap->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int * 1115e705c121SKalle Valo vif->bss_conf.dtim_period); 1116e705c121SKalle Valo 1117ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, 1118ced19f26SSara Sharon IWL_UCODE_TLV_API_STA_TYPE)) 1119cfbc6c4cSSara Sharon ctxt_ap->mcast_qid = cpu_to_le32(mvmvif->cab_queue); 1120e705c121SKalle Valo 1121e705c121SKalle Valo /* 1122e705c121SKalle Valo * Only set the beacon time when the MAC is being added, when we 1123e705c121SKalle Valo * just modify the MAC then we should keep the time -- the firmware 1124e705c121SKalle Valo * can otherwise have a "jumping" TBTT. 1125e705c121SKalle Valo */ 1126e705c121SKalle Valo if (add) { 1127e705c121SKalle Valo /* 1128e705c121SKalle Valo * If there is a station/P2P client interface which is 1129e705c121SKalle Valo * associated, set the AP's TBTT far enough from the station's 1130e705c121SKalle Valo * TBTT. Otherwise, set it to the current system time 1131e705c121SKalle Valo */ 1132e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 1133e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 1134e705c121SKalle Valo iwl_mvm_mac_ap_iterator, &data); 1135e705c121SKalle Valo 1136e705c121SKalle Valo if (data.beacon_device_ts) { 1137e705c121SKalle Valo u32 rand = (prandom_u32() % (64 - 36)) + 36; 1138e705c121SKalle Valo mvmvif->ap_beacon_time = data.beacon_device_ts + 1139e705c121SKalle Valo ieee80211_tu_to_usec(data.beacon_int * rand / 1140e705c121SKalle Valo 100); 1141e705c121SKalle Valo } else { 1142afc1e3b4SAvraham Stern mvmvif->ap_beacon_time = iwl_mvm_get_systime(mvm); 1143e705c121SKalle Valo } 1144e705c121SKalle Valo } 1145e705c121SKalle Valo 1146e705c121SKalle Valo ctxt_ap->beacon_time = cpu_to_le32(mvmvif->ap_beacon_time); 1147e705c121SKalle Valo ctxt_ap->beacon_tsf = 0; /* unused */ 1148e705c121SKalle Valo 1149e705c121SKalle Valo /* TODO: Assume that the beacon id == mac context id */ 1150e705c121SKalle Valo ctxt_ap->beacon_template = cpu_to_le32(mvmvif->id); 1151e705c121SKalle Valo } 1152e705c121SKalle Valo 1153e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_ap(struct iwl_mvm *mvm, 1154e705c121SKalle Valo struct ieee80211_vif *vif, 1155e705c121SKalle Valo u32 action) 1156e705c121SKalle Valo { 1157e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 1158e705c121SKalle Valo 1159e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_AP || vif->p2p); 1160e705c121SKalle Valo 1161e705c121SKalle Valo /* Fill the common data for all mac context types */ 1162e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 1163e705c121SKalle Valo 1164e705c121SKalle Valo /* Fill the data specific for ap mode */ 1165186cd49aSJohannes Berg iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd, &cmd.ap, 1166e705c121SKalle Valo action == FW_CTXT_ACTION_ADD); 1167e705c121SKalle Valo 1168e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 1169e705c121SKalle Valo } 1170e705c121SKalle Valo 1171e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_go(struct iwl_mvm *mvm, 1172e705c121SKalle Valo struct ieee80211_vif *vif, 1173e705c121SKalle Valo u32 action) 1174e705c121SKalle Valo { 1175e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 1176e705c121SKalle Valo struct ieee80211_p2p_noa_attr *noa = &vif->bss_conf.p2p_noa_attr; 1177e705c121SKalle Valo 1178e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_AP || !vif->p2p); 1179e705c121SKalle Valo 1180e705c121SKalle Valo /* Fill the common data for all mac context types */ 1181e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 1182e705c121SKalle Valo 1183e705c121SKalle Valo /* Fill the data specific for GO mode */ 1184186cd49aSJohannes Berg iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd, &cmd.go.ap, 1185e705c121SKalle Valo action == FW_CTXT_ACTION_ADD); 1186e705c121SKalle Valo 1187e705c121SKalle Valo cmd.go.ctwin = cpu_to_le32(noa->oppps_ctwindow & 1188e705c121SKalle Valo IEEE80211_P2P_OPPPS_CTWINDOW_MASK); 1189e705c121SKalle Valo cmd.go.opp_ps_enabled = 1190e705c121SKalle Valo cpu_to_le32(!!(noa->oppps_ctwindow & 1191e705c121SKalle Valo IEEE80211_P2P_OPPPS_ENABLE_BIT)); 1192e705c121SKalle Valo 1193e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 1194e705c121SKalle Valo } 1195e705c121SKalle Valo 1196e705c121SKalle Valo static int iwl_mvm_mac_ctx_send(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1197e705c121SKalle Valo u32 action, bool force_assoc_off, 1198e705c121SKalle Valo const u8 *bssid_override) 1199e705c121SKalle Valo { 1200e705c121SKalle Valo switch (vif->type) { 1201e705c121SKalle Valo case NL80211_IFTYPE_STATION: 1202e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_sta(mvm, vif, action, 1203e705c121SKalle Valo force_assoc_off, 1204e705c121SKalle Valo bssid_override); 1205e705c121SKalle Valo break; 1206e705c121SKalle Valo case NL80211_IFTYPE_AP: 1207e705c121SKalle Valo if (!vif->p2p) 1208e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_ap(mvm, vif, action); 1209e705c121SKalle Valo else 1210e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_go(mvm, vif, action); 1211e705c121SKalle Valo break; 1212e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 1213e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_listener(mvm, vif, action); 1214e705c121SKalle Valo case NL80211_IFTYPE_P2P_DEVICE: 1215e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_p2p_device(mvm, vif, action); 1216e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 1217e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_ibss(mvm, vif, action); 1218e705c121SKalle Valo default: 1219e705c121SKalle Valo break; 1220e705c121SKalle Valo } 1221e705c121SKalle Valo 1222e705c121SKalle Valo return -EOPNOTSUPP; 1223e705c121SKalle Valo } 1224e705c121SKalle Valo 1225e705c121SKalle Valo int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1226e705c121SKalle Valo { 1227e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1228e705c121SKalle Valo int ret; 1229e705c121SKalle Valo 1230e705c121SKalle Valo if (WARN_ONCE(mvmvif->uploaded, "Adding active MAC %pM/%d\n", 1231e705c121SKalle Valo vif->addr, ieee80211_vif_type_p2p(vif))) 1232e705c121SKalle Valo return -EIO; 1233e705c121SKalle Valo 1234e705c121SKalle Valo ret = iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_ADD, 1235e705c121SKalle Valo true, NULL); 1236e705c121SKalle Valo if (ret) 1237e705c121SKalle Valo return ret; 1238e705c121SKalle Valo 1239e705c121SKalle Valo /* will only do anything at resume from D3 time */ 1240e705c121SKalle Valo iwl_mvm_set_last_nonqos_seq(mvm, vif); 1241e705c121SKalle Valo 1242e705c121SKalle Valo mvmvif->uploaded = true; 1243e705c121SKalle Valo return 0; 1244e705c121SKalle Valo } 1245e705c121SKalle Valo 1246e705c121SKalle Valo int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1247e705c121SKalle Valo bool force_assoc_off, const u8 *bssid_override) 1248e705c121SKalle Valo { 1249e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1250e705c121SKalle Valo 1251e705c121SKalle Valo if (WARN_ONCE(!mvmvif->uploaded, "Changing inactive MAC %pM/%d\n", 1252e705c121SKalle Valo vif->addr, ieee80211_vif_type_p2p(vif))) 1253e705c121SKalle Valo return -EIO; 1254e705c121SKalle Valo 1255e705c121SKalle Valo return iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_MODIFY, 1256e705c121SKalle Valo force_assoc_off, bssid_override); 1257e705c121SKalle Valo } 1258e705c121SKalle Valo 1259e705c121SKalle Valo int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1260e705c121SKalle Valo { 1261e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1262e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd; 1263e705c121SKalle Valo int ret; 1264e705c121SKalle Valo 1265e705c121SKalle Valo if (WARN_ONCE(!mvmvif->uploaded, "Removing inactive MAC %pM/%d\n", 1266e705c121SKalle Valo vif->addr, ieee80211_vif_type_p2p(vif))) 1267e705c121SKalle Valo return -EIO; 1268e705c121SKalle Valo 1269e705c121SKalle Valo memset(&cmd, 0, sizeof(cmd)); 1270e705c121SKalle Valo 1271e705c121SKalle Valo cmd.id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1272e705c121SKalle Valo mvmvif->color)); 1273e705c121SKalle Valo cmd.action = cpu_to_le32(FW_CTXT_ACTION_REMOVE); 1274e705c121SKalle Valo 1275e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, 0, 1276e705c121SKalle Valo sizeof(cmd), &cmd); 1277e705c121SKalle Valo if (ret) { 1278e705c121SKalle Valo IWL_ERR(mvm, "Failed to remove MAC context: %d\n", ret); 1279e705c121SKalle Valo return ret; 1280e705c121SKalle Valo } 1281e705c121SKalle Valo 1282e705c121SKalle Valo mvmvif->uploaded = false; 1283e705c121SKalle Valo 12840e39eb03SChaya Rachel Ivgi if (vif->type == NL80211_IFTYPE_MONITOR) { 1285e705c121SKalle Valo __clear_bit(IEEE80211_HW_RX_INCLUDES_FCS, mvm->hw->flags); 12860e39eb03SChaya Rachel Ivgi iwl_mvm_dealloc_snif_sta(mvm); 12870e39eb03SChaya Rachel Ivgi } 1288e705c121SKalle Valo 1289e705c121SKalle Valo return 0; 1290e705c121SKalle Valo } 1291e705c121SKalle Valo 1292e705c121SKalle Valo static void iwl_mvm_csa_count_down(struct iwl_mvm *mvm, 1293e705c121SKalle Valo struct ieee80211_vif *csa_vif, u32 gp2, 1294e705c121SKalle Valo bool tx_success) 1295e705c121SKalle Valo { 1296e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = 1297e705c121SKalle Valo iwl_mvm_vif_from_mac80211(csa_vif); 1298e705c121SKalle Valo 1299e705c121SKalle Valo /* Don't start to countdown from a failed beacon */ 1300e705c121SKalle Valo if (!tx_success && !mvmvif->csa_countdown) 1301e705c121SKalle Valo return; 1302e705c121SKalle Valo 1303e705c121SKalle Valo mvmvif->csa_countdown = true; 1304e705c121SKalle Valo 13058552a434SJohn Crispin if (!ieee80211_beacon_cntdwn_is_complete(csa_vif)) { 13068552a434SJohn Crispin int c = ieee80211_beacon_update_cntdwn(csa_vif); 1307e705c121SKalle Valo 1308e705c121SKalle Valo iwl_mvm_mac_ctxt_beacon_changed(mvm, csa_vif); 1309e705c121SKalle Valo if (csa_vif->p2p && 1310e705c121SKalle Valo !iwl_mvm_te_scheduled(&mvmvif->time_event_data) && gp2 && 1311e705c121SKalle Valo tx_success) { 1312e705c121SKalle Valo u32 rel_time = (c + 1) * 1313e705c121SKalle Valo csa_vif->bss_conf.beacon_int - 1314e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_TIME_GO; 1315e705c121SKalle Valo u32 apply_time = gp2 + rel_time * 1024; 1316e705c121SKalle Valo 1317e705c121SKalle Valo iwl_mvm_schedule_csa_period(mvm, csa_vif, 1318e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_TIME_GO - 1319e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_MARGIN, 1320e705c121SKalle Valo apply_time); 1321e705c121SKalle Valo } 1322e705c121SKalle Valo } else if (!iwl_mvm_te_scheduled(&mvmvif->time_event_data)) { 1323e705c121SKalle Valo /* we don't have CSA NoA scheduled yet, switch now */ 1324e705c121SKalle Valo ieee80211_csa_finish(csa_vif); 1325e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_vif, NULL); 1326e705c121SKalle Valo } 1327e705c121SKalle Valo } 1328e705c121SKalle Valo 1329e705c121SKalle Valo void iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm, 1330e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 1331e705c121SKalle Valo { 1332e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 1333e705c121SKalle Valo struct iwl_extended_beacon_notif *beacon = (void *)pkt->data; 133415e28c78SEmmanuel Grumbach struct iwl_extended_beacon_notif_v5 *beacon_v5 = (void *)pkt->data; 1335e705c121SKalle Valo struct ieee80211_vif *csa_vif; 1336e705c121SKalle Valo struct ieee80211_vif *tx_blocked_vif; 133712db294cSSara Sharon struct agg_tx_status *agg_status; 1338e705c121SKalle Valo u16 status; 1339e705c121SKalle Valo 1340e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1341e705c121SKalle Valo 1342e705c121SKalle Valo mvm->ap_last_beacon_gp2 = le32_to_cpu(beacon->gp2); 1343e705c121SKalle Valo 134415e28c78SEmmanuel Grumbach if (!iwl_mvm_is_short_beacon_notif_supported(mvm)) { 134515e28c78SEmmanuel Grumbach struct iwl_mvm_tx_resp *beacon_notify_hdr = 134615e28c78SEmmanuel Grumbach &beacon_v5->beacon_notify_hdr; 134715e28c78SEmmanuel Grumbach 134815e28c78SEmmanuel Grumbach mvm->ibss_manager = beacon_v5->ibss_mgr_status != 0; 134912db294cSSara Sharon agg_status = iwl_mvm_get_agg_status(mvm, beacon_notify_hdr); 135012db294cSSara Sharon status = le16_to_cpu(agg_status->status) & TX_STATUS_MSK; 1351e705c121SKalle Valo IWL_DEBUG_RX(mvm, 1352677837b8SJohannes Berg "beacon status %#x retries:%d tsf:0x%016llX gp2:0x%X rate:%d\n", 1353e705c121SKalle Valo status, beacon_notify_hdr->failure_frame, 1354e705c121SKalle Valo le64_to_cpu(beacon->tsf), 1355e705c121SKalle Valo mvm->ap_last_beacon_gp2, 1356e705c121SKalle Valo le32_to_cpu(beacon_notify_hdr->initial_rate)); 135715e28c78SEmmanuel Grumbach } else { 135815e28c78SEmmanuel Grumbach mvm->ibss_manager = beacon->ibss_mgr_status != 0; 135915e28c78SEmmanuel Grumbach status = le32_to_cpu(beacon->status) & TX_STATUS_MSK; 136015e28c78SEmmanuel Grumbach IWL_DEBUG_RX(mvm, 136115e28c78SEmmanuel Grumbach "beacon status %#x tsf:0x%016llX gp2:0x%X\n", 136215e28c78SEmmanuel Grumbach status, le64_to_cpu(beacon->tsf), 136315e28c78SEmmanuel Grumbach mvm->ap_last_beacon_gp2); 136415e28c78SEmmanuel Grumbach } 1365e705c121SKalle Valo 1366e705c121SKalle Valo csa_vif = rcu_dereference_protected(mvm->csa_vif, 1367e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1368e705c121SKalle Valo if (unlikely(csa_vif && csa_vif->csa_active)) 1369e705c121SKalle Valo iwl_mvm_csa_count_down(mvm, csa_vif, mvm->ap_last_beacon_gp2, 1370e705c121SKalle Valo (status == TX_STATUS_SUCCESS)); 1371e705c121SKalle Valo 1372e705c121SKalle Valo tx_blocked_vif = rcu_dereference_protected(mvm->csa_tx_blocked_vif, 1373e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1374e705c121SKalle Valo if (unlikely(tx_blocked_vif)) { 1375e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = 1376e705c121SKalle Valo iwl_mvm_vif_from_mac80211(tx_blocked_vif); 1377e705c121SKalle Valo 1378e705c121SKalle Valo /* 1379e705c121SKalle Valo * The channel switch is started and we have blocked the 1380e705c121SKalle Valo * stations. If this is the first beacon (the timeout wasn't 1381e705c121SKalle Valo * set), set the unblock timeout, otherwise countdown 1382e705c121SKalle Valo */ 1383e705c121SKalle Valo if (!mvm->csa_tx_block_bcn_timeout) 1384e705c121SKalle Valo mvm->csa_tx_block_bcn_timeout = 1385e705c121SKalle Valo IWL_MVM_CS_UNBLOCK_TX_TIMEOUT; 1386e705c121SKalle Valo else 1387e705c121SKalle Valo mvm->csa_tx_block_bcn_timeout--; 1388e705c121SKalle Valo 1389e705c121SKalle Valo /* Check if the timeout is expired, and unblock tx */ 1390e705c121SKalle Valo if (mvm->csa_tx_block_bcn_timeout == 0) { 1391e705c121SKalle Valo iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 1392e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 1393e705c121SKalle Valo } 1394e705c121SKalle Valo } 1395e705c121SKalle Valo } 1396e705c121SKalle Valo 1397698478c4SSara Sharon void iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm *mvm, 1398698478c4SSara Sharon struct iwl_rx_cmd_buffer *rxb) 1399e705c121SKalle Valo { 1400698478c4SSara Sharon struct iwl_rx_packet *pkt = rxb_addr(rxb); 1401698478c4SSara Sharon struct iwl_missed_beacons_notif *mb = (void *)pkt->data; 1402e705c121SKalle Valo struct iwl_fw_dbg_trigger_missed_bcon *bcon_trig; 1403e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trigger; 1404e705c121SKalle Valo u32 stop_trig_missed_bcon, stop_trig_missed_bcon_since_rx; 1405e705c121SKalle Valo u32 rx_missed_bcon, rx_missed_bcon_since_rx; 1406698478c4SSara Sharon struct ieee80211_vif *vif; 1407698478c4SSara Sharon u32 id = le32_to_cpu(mb->mac_id); 1408eae7550bSShahar S Matityahu union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; 1409e705c121SKalle Valo 1410698478c4SSara Sharon IWL_DEBUG_INFO(mvm, 1411698478c4SSara Sharon "missed bcn mac_id=%u, consecutive=%u (%u, %u, %u)\n", 1412698478c4SSara Sharon le32_to_cpu(mb->mac_id), 1413698478c4SSara Sharon le32_to_cpu(mb->consec_missed_beacons), 1414698478c4SSara Sharon le32_to_cpu(mb->consec_missed_beacons_since_last_rx), 1415698478c4SSara Sharon le32_to_cpu(mb->num_recvd_beacons), 1416698478c4SSara Sharon le32_to_cpu(mb->num_expected_beacons)); 1417e705c121SKalle Valo 1418698478c4SSara Sharon rcu_read_lock(); 1419698478c4SSara Sharon 1420698478c4SSara Sharon vif = iwl_mvm_rcu_dereference_vif_id(mvm, id, true); 1421698478c4SSara Sharon if (!vif) 1422698478c4SSara Sharon goto out; 1423698478c4SSara Sharon 1424698478c4SSara Sharon rx_missed_bcon = le32_to_cpu(mb->consec_missed_beacons); 1425e705c121SKalle Valo rx_missed_bcon_since_rx = 1426698478c4SSara Sharon le32_to_cpu(mb->consec_missed_beacons_since_last_rx); 1427e705c121SKalle Valo /* 1428e705c121SKalle Valo * TODO: the threshold should be adjusted based on latency conditions, 1429e705c121SKalle Valo * and/or in case of a CS flow on one of the other AP vifs. 1430e705c121SKalle Valo */ 1431babea2d4SAndrei Otcheretianski if (rx_missed_bcon > IWL_MVM_MISSED_BEACONS_THRESHOLD_LONG) 1432babea2d4SAndrei Otcheretianski iwl_mvm_connection_loss(mvm, vif, "missed beacons"); 1433babea2d4SAndrei Otcheretianski else if (rx_missed_bcon_since_rx > IWL_MVM_MISSED_BEACONS_THRESHOLD) 1434e705c121SKalle Valo ieee80211_beacon_loss(vif); 1435e705c121SKalle Valo 1436b108d8c7SShahar S Matityahu iwl_dbg_tlv_time_point(&mvm->fwrt, 1437eae7550bSShahar S Matityahu IWL_FW_INI_TIME_POINT_MISSED_BEACONS, &tp_data); 1438b108d8c7SShahar S Matityahu 14396c042d75SSara Sharon trigger = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 14406c042d75SSara Sharon FW_DBG_TRIGGER_MISSED_BEACONS); 14416c042d75SSara Sharon if (!trigger) 1442698478c4SSara Sharon goto out; 1443e705c121SKalle Valo 1444e705c121SKalle Valo bcon_trig = (void *)trigger->data; 1445e705c121SKalle Valo stop_trig_missed_bcon = le32_to_cpu(bcon_trig->stop_consec_missed_bcon); 1446e705c121SKalle Valo stop_trig_missed_bcon_since_rx = 1447e705c121SKalle Valo le32_to_cpu(bcon_trig->stop_consec_missed_bcon_since_rx); 1448e705c121SKalle Valo 1449e705c121SKalle Valo /* TODO: implement start trigger */ 1450e705c121SKalle Valo 1451e705c121SKalle Valo if (rx_missed_bcon_since_rx >= stop_trig_missed_bcon_since_rx || 1452e705c121SKalle Valo rx_missed_bcon >= stop_trig_missed_bcon) 14537174beb6SJohannes Berg iwl_fw_dbg_collect_trig(&mvm->fwrt, trigger, NULL); 1454da2eb669SSara Sharon 1455698478c4SSara Sharon out: 1456698478c4SSara Sharon rcu_read_unlock(); 1457e705c121SKalle Valo } 14580db056d3SSara Sharon 14590db056d3SSara Sharon void iwl_mvm_rx_stored_beacon_notif(struct iwl_mvm *mvm, 14600db056d3SSara Sharon struct iwl_rx_cmd_buffer *rxb) 14610db056d3SSara Sharon { 14620db056d3SSara Sharon struct iwl_rx_packet *pkt = rxb_addr(rxb); 14630db056d3SSara Sharon struct iwl_stored_beacon_notif *sb = (void *)pkt->data; 14640db056d3SSara Sharon struct ieee80211_rx_status rx_status; 14650db056d3SSara Sharon struct sk_buff *skb; 14660db056d3SSara Sharon u32 size = le32_to_cpu(sb->byte_count); 14670db056d3SSara Sharon 14680db056d3SSara Sharon if (size == 0) 14690db056d3SSara Sharon return; 14700db056d3SSara Sharon 14710db056d3SSara Sharon skb = alloc_skb(size, GFP_ATOMIC); 14720db056d3SSara Sharon if (!skb) { 14730db056d3SSara Sharon IWL_ERR(mvm, "alloc_skb failed\n"); 14740db056d3SSara Sharon return; 14750db056d3SSara Sharon } 14760db056d3SSara Sharon 14770db056d3SSara Sharon /* update rx_status according to the notification's metadata */ 14780db056d3SSara Sharon memset(&rx_status, 0, sizeof(rx_status)); 14790db056d3SSara Sharon rx_status.mactime = le64_to_cpu(sb->tsf); 148077fe7395SSara Sharon /* TSF as indicated by the firmware is at INA time */ 148177fe7395SSara Sharon rx_status.flag |= RX_FLAG_MACTIME_PLCP_START; 14820db056d3SSara Sharon rx_status.device_timestamp = le32_to_cpu(sb->system_time); 14830db056d3SSara Sharon rx_status.band = 148434118c25SSara Sharon (sb->band & cpu_to_le16(RX_RES_PHY_FLAGS_BAND_24)) ? 148557fbcce3SJohannes Berg NL80211_BAND_2GHZ : NL80211_BAND_5GHZ; 14860db056d3SSara Sharon rx_status.freq = 14870db056d3SSara Sharon ieee80211_channel_to_frequency(le16_to_cpu(sb->channel), 14880db056d3SSara Sharon rx_status.band); 14890db056d3SSara Sharon 14900db056d3SSara Sharon /* copy the data */ 149159ae1d12SJohannes Berg skb_put_data(skb, sb->data, size); 14920db056d3SSara Sharon memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); 14930db056d3SSara Sharon 14940db056d3SSara Sharon /* pass it as regular rx to mac80211 */ 1495d63b548fSJohannes Berg ieee80211_rx_napi(mvm->hw, NULL, skb, NULL); 14960db056d3SSara Sharon } 1497d3a108a4SAndrei Otcheretianski 1498698478c4SSara Sharon void iwl_mvm_probe_resp_data_notif(struct iwl_mvm *mvm, 1499698478c4SSara Sharon struct iwl_rx_cmd_buffer *rxb) 150086e177d8SGregory Greenman { 1501698478c4SSara Sharon struct iwl_rx_packet *pkt = rxb_addr(rxb); 1502698478c4SSara Sharon struct iwl_probe_resp_data_notif *notif = (void *)pkt->data; 150386e177d8SGregory Greenman struct iwl_probe_resp_data *old_data, *new_data; 1504698478c4SSara Sharon int len = iwl_rx_packet_payload_len(pkt); 1505698478c4SSara Sharon u32 id = le32_to_cpu(notif->mac_id); 1506698478c4SSara Sharon struct ieee80211_vif *vif; 1507698478c4SSara Sharon struct iwl_mvm_vif *mvmvif; 150886e177d8SGregory Greenman 1509698478c4SSara Sharon if (WARN_ON_ONCE(len < sizeof(*notif))) 151086e177d8SGregory Greenman return; 151186e177d8SGregory Greenman 1512698478c4SSara Sharon IWL_DEBUG_INFO(mvm, "Probe response data notif: noa %d, csa %d\n", 1513698478c4SSara Sharon notif->noa_active, notif->csa_counter); 1514698478c4SSara Sharon 1515698478c4SSara Sharon vif = iwl_mvm_rcu_dereference_vif_id(mvm, id, false); 1516698478c4SSara Sharon if (!vif) 1517698478c4SSara Sharon return; 1518698478c4SSara Sharon 1519698478c4SSara Sharon mvmvif = iwl_mvm_vif_from_mac80211(vif); 1520698478c4SSara Sharon 152186e177d8SGregory Greenman new_data = kzalloc(sizeof(*new_data), GFP_KERNEL); 152286e177d8SGregory Greenman if (!new_data) 152386e177d8SGregory Greenman return; 152486e177d8SGregory Greenman 152586e177d8SGregory Greenman memcpy(&new_data->notif, notif, sizeof(new_data->notif)); 152686e177d8SGregory Greenman 152786e177d8SGregory Greenman /* noa_attr contains 1 reserved byte, need to substruct it */ 152886e177d8SGregory Greenman new_data->noa_len = sizeof(struct ieee80211_vendor_ie) + 152986e177d8SGregory Greenman sizeof(new_data->notif.noa_attr) - 1; 153086e177d8SGregory Greenman 153186e177d8SGregory Greenman /* 153286e177d8SGregory Greenman * If it's a one time NoA, only one descriptor is needed, 153386e177d8SGregory Greenman * adjust the length according to len_low. 153486e177d8SGregory Greenman */ 153586e177d8SGregory Greenman if (new_data->notif.noa_attr.len_low == 153686e177d8SGregory Greenman sizeof(struct ieee80211_p2p_noa_desc) + 2) 153786e177d8SGregory Greenman new_data->noa_len -= sizeof(struct ieee80211_p2p_noa_desc); 153886e177d8SGregory Greenman 153986e177d8SGregory Greenman old_data = rcu_dereference_protected(mvmvif->probe_resp_data, 154086e177d8SGregory Greenman lockdep_is_held(&mvmvif->mvm->mutex)); 154186e177d8SGregory Greenman rcu_assign_pointer(mvmvif->probe_resp_data, new_data); 154286e177d8SGregory Greenman 154386e177d8SGregory Greenman if (old_data) 154486e177d8SGregory Greenman kfree_rcu(old_data, rcu_head); 154586e177d8SGregory Greenman 154686e177d8SGregory Greenman if (notif->csa_counter != IWL_PROBE_RESP_DATA_NO_CSA && 154786e177d8SGregory Greenman notif->csa_counter >= 1) 15488552a434SJohn Crispin ieee80211_beacon_set_cntdwn(vif, notif->csa_counter); 154986e177d8SGregory Greenman } 155086e177d8SGregory Greenman 1551d3a108a4SAndrei Otcheretianski void iwl_mvm_channel_switch_noa_notif(struct iwl_mvm *mvm, 1552d3a108a4SAndrei Otcheretianski struct iwl_rx_cmd_buffer *rxb) 1553d3a108a4SAndrei Otcheretianski { 1554d3a108a4SAndrei Otcheretianski struct iwl_rx_packet *pkt = rxb_addr(rxb); 1555d3a108a4SAndrei Otcheretianski struct iwl_channel_switch_noa_notif *notif = (void *)pkt->data; 155674a10252SSara Sharon struct ieee80211_vif *csa_vif, *vif; 1557d3a108a4SAndrei Otcheretianski struct iwl_mvm_vif *mvmvif; 1558d3a108a4SAndrei Otcheretianski int len = iwl_rx_packet_payload_len(pkt); 155974a10252SSara Sharon u32 id_n_color, csa_id, mac_id; 1560d3a108a4SAndrei Otcheretianski 1561d3a108a4SAndrei Otcheretianski if (WARN_ON_ONCE(len < sizeof(*notif))) 1562d3a108a4SAndrei Otcheretianski return; 1563d3a108a4SAndrei Otcheretianski 156474a10252SSara Sharon id_n_color = le32_to_cpu(notif->id_and_color); 156574a10252SSara Sharon mac_id = id_n_color & FW_CTXT_ID_MSK; 1566d3a108a4SAndrei Otcheretianski 156774a10252SSara Sharon if (WARN_ON_ONCE(mac_id >= NUM_MAC_INDEX_DRIVER)) 156874a10252SSara Sharon return; 156974a10252SSara Sharon 157074a10252SSara Sharon rcu_read_lock(); 157174a10252SSara Sharon vif = rcu_dereference(mvm->vif_id_to_mac[mac_id]); 1572f6780614SSara Sharon mvmvif = iwl_mvm_vif_from_mac80211(vif); 157374a10252SSara Sharon 157474a10252SSara Sharon switch (vif->type) { 157574a10252SSara Sharon case NL80211_IFTYPE_AP: 1576d3a108a4SAndrei Otcheretianski csa_vif = rcu_dereference(mvm->csa_vif); 157774a10252SSara Sharon if (WARN_ON(!csa_vif || !csa_vif->csa_active || 157874a10252SSara Sharon csa_vif != vif)) 1579d3a108a4SAndrei Otcheretianski goto out_unlock; 1580d3a108a4SAndrei Otcheretianski 158174a10252SSara Sharon csa_id = FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color); 158274a10252SSara Sharon if (WARN(csa_id != id_n_color, 1583d3a108a4SAndrei Otcheretianski "channel switch noa notification on unexpected vif (csa_vif=%d, notif=%d)", 158474a10252SSara Sharon csa_id, id_n_color)) 1585d3a108a4SAndrei Otcheretianski goto out_unlock; 1586d3a108a4SAndrei Otcheretianski 1587d3a108a4SAndrei Otcheretianski IWL_DEBUG_INFO(mvm, "Channel Switch Started Notification\n"); 1588d3a108a4SAndrei Otcheretianski 158986bbb1e1SJohannes Berg schedule_delayed_work(&mvm->cs_tx_unblock_dwork, 1590d3a108a4SAndrei Otcheretianski msecs_to_jiffies(IWL_MVM_CS_UNBLOCK_TX_TIMEOUT * 1591d3a108a4SAndrei Otcheretianski csa_vif->bss_conf.beacon_int)); 1592d3a108a4SAndrei Otcheretianski 1593d3a108a4SAndrei Otcheretianski ieee80211_csa_finish(csa_vif); 1594d3a108a4SAndrei Otcheretianski 1595d3a108a4SAndrei Otcheretianski rcu_read_unlock(); 1596d3a108a4SAndrei Otcheretianski 1597d3a108a4SAndrei Otcheretianski RCU_INIT_POINTER(mvm->csa_vif, NULL); 1598d3a108a4SAndrei Otcheretianski return; 159974a10252SSara Sharon case NL80211_IFTYPE_STATION: 16000202bcf0SEmmanuel Grumbach if (!fw_has_capa(&mvm->fw->ucode_capa, 16010202bcf0SEmmanuel Grumbach IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 160274a10252SSara Sharon iwl_mvm_csa_client_absent(mvm, vif); 160311af74adSAndrei Otcheretianski cancel_delayed_work(&mvmvif->csa_work); 160474a10252SSara Sharon ieee80211_chswitch_done(vif, true); 160574a10252SSara Sharon break; 160674a10252SSara Sharon default: 160774a10252SSara Sharon /* should never happen */ 160874a10252SSara Sharon WARN_ON_ONCE(1); 160974a10252SSara Sharon break; 161074a10252SSara Sharon } 1611d3a108a4SAndrei Otcheretianski out_unlock: 1612d3a108a4SAndrei Otcheretianski rcu_read_unlock(); 1613d3a108a4SAndrei Otcheretianski } 1614449a29d0SLior Cohen 1615449a29d0SLior Cohen void iwl_mvm_rx_missed_vap_notif(struct iwl_mvm *mvm, 1616449a29d0SLior Cohen struct iwl_rx_cmd_buffer *rxb) 1617449a29d0SLior Cohen { 1618449a29d0SLior Cohen struct iwl_rx_packet *pkt = rxb_addr(rxb); 1619449a29d0SLior Cohen struct iwl_missed_vap_notif *mb = (void *)pkt->data; 1620449a29d0SLior Cohen struct ieee80211_vif *vif; 1621449a29d0SLior Cohen u32 id = le32_to_cpu(mb->mac_id); 1622449a29d0SLior Cohen 1623449a29d0SLior Cohen IWL_DEBUG_INFO(mvm, 1624449a29d0SLior Cohen "missed_vap notify mac_id=%u, num_beacon_intervals_elapsed=%u, profile_periodicity=%u\n", 1625449a29d0SLior Cohen le32_to_cpu(mb->mac_id), 1626449a29d0SLior Cohen mb->num_beacon_intervals_elapsed, 1627449a29d0SLior Cohen mb->profile_periodicity); 1628449a29d0SLior Cohen 1629449a29d0SLior Cohen rcu_read_lock(); 1630449a29d0SLior Cohen 1631449a29d0SLior Cohen vif = iwl_mvm_rcu_dereference_vif_id(mvm, id, true); 1632449a29d0SLior Cohen if (vif) 1633449a29d0SLior Cohen iwl_mvm_connection_loss(mvm, vif, "missed vap beacon"); 1634449a29d0SLior Cohen 1635449a29d0SLior Cohen rcu_read_unlock(); 1636449a29d0SLior Cohen } 1637