1e705c121SKalle Valo /****************************************************************************** 2e705c121SKalle Valo * 3e705c121SKalle Valo * This file is provided under a dual BSD/GPLv2 license. When using or 4e705c121SKalle Valo * redistributing this file, you may do so under either license. 5e705c121SKalle Valo * 6e705c121SKalle Valo * GPL LICENSE SUMMARY 7e705c121SKalle Valo * 8e705c121SKalle Valo * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 9e705c121SKalle Valo * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH 1009856582SLuca Coelho * Copyright(c) 2015 - 2017 Intel Deutschland GmbH 1186e177d8SGregory Greenman * Copyright(c) 2018 Intel Corporation 12e705c121SKalle Valo * 13e705c121SKalle Valo * This program is free software; you can redistribute it and/or modify 14e705c121SKalle Valo * it under the terms of version 2 of the GNU General Public License as 15e705c121SKalle Valo * published by the Free Software Foundation. 16e705c121SKalle Valo * 17e705c121SKalle Valo * This program is distributed in the hope that it will be useful, but 18e705c121SKalle Valo * WITHOUT ANY WARRANTY; without even the implied warranty of 19e705c121SKalle Valo * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 20e705c121SKalle Valo * General Public License for more details. 21e705c121SKalle Valo * 22e705c121SKalle Valo * You should have received a copy of the GNU General Public License 23e705c121SKalle Valo * along with this program; if not, write to the Free Software 24e705c121SKalle Valo * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 25e705c121SKalle Valo * USA 26e705c121SKalle Valo * 27e705c121SKalle Valo * The full GNU General Public License is included in this distribution 28e705c121SKalle Valo * in the file called COPYING. 29e705c121SKalle Valo * 30e705c121SKalle Valo * Contact Information: 31cb2f8277SEmmanuel Grumbach * Intel Linux Wireless <linuxwifi@intel.com> 32e705c121SKalle Valo * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 33e705c121SKalle Valo * 34e705c121SKalle Valo * BSD LICENSE 35e705c121SKalle Valo * 36e705c121SKalle Valo * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 37e705c121SKalle Valo * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH 3809856582SLuca Coelho * Copyright(c) 2015 - 2017 Intel Deutschland GmbH 3986e177d8SGregory Greenman * Copyright(c) 2018 Intel Corporation 40e705c121SKalle Valo * All rights reserved. 41e705c121SKalle Valo * 42e705c121SKalle Valo * Redistribution and use in source and binary forms, with or without 43e705c121SKalle Valo * modification, are permitted provided that the following conditions 44e705c121SKalle Valo * are met: 45e705c121SKalle Valo * 46e705c121SKalle Valo * * Redistributions of source code must retain the above copyright 47e705c121SKalle Valo * notice, this list of conditions and the following disclaimer. 48e705c121SKalle Valo * * Redistributions in binary form must reproduce the above copyright 49e705c121SKalle Valo * notice, this list of conditions and the following disclaimer in 50e705c121SKalle Valo * the documentation and/or other materials provided with the 51e705c121SKalle Valo * distribution. 52e705c121SKalle Valo * * Neither the name Intel Corporation nor the names of its 53e705c121SKalle Valo * contributors may be used to endorse or promote products derived 54e705c121SKalle Valo * from this software without specific prior written permission. 55e705c121SKalle Valo * 56e705c121SKalle Valo * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 57e705c121SKalle Valo * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 58e705c121SKalle Valo * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 59e705c121SKalle Valo * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 60e705c121SKalle Valo * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 61e705c121SKalle Valo * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 62e705c121SKalle Valo * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 63e705c121SKalle Valo * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 64e705c121SKalle Valo * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 65e705c121SKalle Valo * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 66e705c121SKalle Valo * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 67e705c121SKalle Valo * 68e705c121SKalle Valo *****************************************************************************/ 69e705c121SKalle Valo 70e705c121SKalle Valo #include <linux/etherdevice.h> 71e705c121SKalle Valo #include <net/mac80211.h> 72e705c121SKalle Valo #include "iwl-io.h" 73e705c121SKalle Valo #include "iwl-prph.h" 74e705c121SKalle Valo #include "fw-api.h" 75e705c121SKalle Valo #include "mvm.h" 76e705c121SKalle Valo #include "time-event.h" 77e705c121SKalle Valo 78e705c121SKalle Valo const u8 iwl_mvm_ac_to_tx_fifo[] = { 79e705c121SKalle Valo IWL_MVM_TX_FIFO_VO, 80e705c121SKalle Valo IWL_MVM_TX_FIFO_VI, 81e705c121SKalle Valo IWL_MVM_TX_FIFO_BE, 82e705c121SKalle Valo IWL_MVM_TX_FIFO_BK, 83e705c121SKalle Valo }; 84e705c121SKalle Valo 85cf6c6ea3SEmmanuel Grumbach const u8 iwl_mvm_ac_to_gen2_tx_fifo[] = { 86cf6c6ea3SEmmanuel Grumbach IWL_GEN2_EDCA_TX_FIFO_VO, 87cf6c6ea3SEmmanuel Grumbach IWL_GEN2_EDCA_TX_FIFO_VI, 88cf6c6ea3SEmmanuel Grumbach IWL_GEN2_EDCA_TX_FIFO_BE, 89cf6c6ea3SEmmanuel Grumbach IWL_GEN2_EDCA_TX_FIFO_BK, 90cf6c6ea3SEmmanuel Grumbach }; 91cf6c6ea3SEmmanuel Grumbach 92e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data { 93e705c121SKalle Valo struct iwl_mvm *mvm; 94e705c121SKalle Valo struct ieee80211_vif *vif; 95e705c121SKalle Valo unsigned long available_mac_ids[BITS_TO_LONGS(NUM_MAC_INDEX_DRIVER)]; 96e705c121SKalle Valo unsigned long available_tsf_ids[BITS_TO_LONGS(NUM_TSF_IDS)]; 97e705c121SKalle Valo enum iwl_tsf_id preferred_tsf; 98e705c121SKalle Valo bool found_vif; 99e705c121SKalle Valo }; 100e705c121SKalle Valo 101e705c121SKalle Valo struct iwl_mvm_hw_queues_iface_iterator_data { 102e705c121SKalle Valo struct ieee80211_vif *exclude_vif; 103e705c121SKalle Valo unsigned long used_hw_queues; 104e705c121SKalle Valo }; 105e705c121SKalle Valo 106e705c121SKalle Valo static void iwl_mvm_mac_tsf_id_iter(void *_data, u8 *mac, 107e705c121SKalle Valo struct ieee80211_vif *vif) 108e705c121SKalle Valo { 109e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data *data = _data; 110e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 111e705c121SKalle Valo u16 min_bi; 112e705c121SKalle Valo 113e705c121SKalle Valo /* Skip the interface for which we are trying to assign a tsf_id */ 114e705c121SKalle Valo if (vif == data->vif) 115e705c121SKalle Valo return; 116e705c121SKalle Valo 117e705c121SKalle Valo /* 118e705c121SKalle Valo * The TSF is a hardware/firmware resource, there are 4 and 119e705c121SKalle Valo * the driver should assign and free them as needed. However, 120e705c121SKalle Valo * there are cases where 2 MACs should share the same TSF ID 121e705c121SKalle Valo * for the purpose of clock sync, an optimization to avoid 122e705c121SKalle Valo * clock drift causing overlapping TBTTs/DTIMs for a GO and 123e705c121SKalle Valo * client in the system. 124e705c121SKalle Valo * 125e705c121SKalle Valo * The firmware will decide according to the MAC type which 126e705c121SKalle Valo * will be the master and slave. Clients that need to sync 127e705c121SKalle Valo * with a remote station will be the master, and an AP or GO 128e705c121SKalle Valo * will be the slave. 129e705c121SKalle Valo * 130e705c121SKalle Valo * Depending on the new interface type it can be slaved to 131e705c121SKalle Valo * or become the master of an existing interface. 132e705c121SKalle Valo */ 133e705c121SKalle Valo switch (data->vif->type) { 134e705c121SKalle Valo case NL80211_IFTYPE_STATION: 135e705c121SKalle Valo /* 136e705c121SKalle Valo * The new interface is a client, so if the one we're iterating 137e705c121SKalle Valo * is an AP, and the beacon interval of the AP is a multiple or 138e705c121SKalle Valo * divisor of the beacon interval of the client, the same TSF 139e705c121SKalle Valo * should be used to avoid drift between the new client and 140e705c121SKalle Valo * existing AP. The existing AP will get drift updates from the 141e705c121SKalle Valo * new client context in this case. 142e705c121SKalle Valo */ 143e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_AP || 144e705c121SKalle Valo data->preferred_tsf != NUM_TSF_IDS || 145e705c121SKalle Valo !test_bit(mvmvif->tsf_id, data->available_tsf_ids)) 146e705c121SKalle Valo break; 147e705c121SKalle Valo 148e705c121SKalle Valo min_bi = min(data->vif->bss_conf.beacon_int, 149e705c121SKalle Valo vif->bss_conf.beacon_int); 150e705c121SKalle Valo 151e705c121SKalle Valo if (!min_bi) 152e705c121SKalle Valo break; 153e705c121SKalle Valo 154e705c121SKalle Valo if ((data->vif->bss_conf.beacon_int - 155e705c121SKalle Valo vif->bss_conf.beacon_int) % min_bi == 0) { 156e705c121SKalle Valo data->preferred_tsf = mvmvif->tsf_id; 157e705c121SKalle Valo return; 158e705c121SKalle Valo } 159e705c121SKalle Valo break; 160e705c121SKalle Valo 161e705c121SKalle Valo case NL80211_IFTYPE_AP: 162e705c121SKalle Valo /* 163e705c121SKalle Valo * The new interface is AP/GO, so if its beacon interval is a 164e705c121SKalle Valo * multiple or a divisor of the beacon interval of an existing 165e705c121SKalle Valo * interface, it should get drift updates from an existing 166e705c121SKalle Valo * client or use the same TSF as an existing GO. There's no 167e705c121SKalle Valo * drift between TSFs internally but if they used different 168e705c121SKalle Valo * TSFs then a new client MAC could update one of them and 169e705c121SKalle Valo * cause drift that way. 170e705c121SKalle Valo */ 171e705c121SKalle Valo if ((vif->type != NL80211_IFTYPE_AP && 172e705c121SKalle Valo vif->type != NL80211_IFTYPE_STATION) || 173e705c121SKalle Valo data->preferred_tsf != NUM_TSF_IDS || 174e705c121SKalle Valo !test_bit(mvmvif->tsf_id, data->available_tsf_ids)) 175e705c121SKalle Valo break; 176e705c121SKalle Valo 177e705c121SKalle Valo min_bi = min(data->vif->bss_conf.beacon_int, 178e705c121SKalle Valo vif->bss_conf.beacon_int); 179e705c121SKalle Valo 180e705c121SKalle Valo if (!min_bi) 181e705c121SKalle Valo break; 182e705c121SKalle Valo 183e705c121SKalle Valo if ((data->vif->bss_conf.beacon_int - 184e705c121SKalle Valo vif->bss_conf.beacon_int) % min_bi == 0) { 185e705c121SKalle Valo data->preferred_tsf = mvmvif->tsf_id; 186e705c121SKalle Valo return; 187e705c121SKalle Valo } 188e705c121SKalle Valo break; 189e705c121SKalle Valo default: 190e705c121SKalle Valo /* 191e705c121SKalle Valo * For all other interface types there's no need to 192e705c121SKalle Valo * take drift into account. Either they're exclusive 193e705c121SKalle Valo * like IBSS and monitor, or we don't care much about 194e705c121SKalle Valo * their TSF (like P2P Device), but we won't be able 195e705c121SKalle Valo * to share the TSF resource. 196e705c121SKalle Valo */ 197e705c121SKalle Valo break; 198e705c121SKalle Valo } 199e705c121SKalle Valo 200e705c121SKalle Valo /* 201e705c121SKalle Valo * Unless we exited above, we can't share the TSF resource 202e705c121SKalle Valo * that the virtual interface we're iterating over is using 203e705c121SKalle Valo * with the new one, so clear the available bit and if this 204e705c121SKalle Valo * was the preferred one, reset that as well. 205e705c121SKalle Valo */ 206e705c121SKalle Valo __clear_bit(mvmvif->tsf_id, data->available_tsf_ids); 207e705c121SKalle Valo 208e705c121SKalle Valo if (data->preferred_tsf == mvmvif->tsf_id) 209e705c121SKalle Valo data->preferred_tsf = NUM_TSF_IDS; 210e705c121SKalle Valo } 211e705c121SKalle Valo 212e705c121SKalle Valo /* 213e705c121SKalle Valo * Get the mask of the queues used by the vif 214e705c121SKalle Valo */ 215e705c121SKalle Valo u32 iwl_mvm_mac_get_queues_mask(struct ieee80211_vif *vif) 216e705c121SKalle Valo { 217e705c121SKalle Valo u32 qmask = 0, ac; 218e705c121SKalle Valo 219e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 220e705c121SKalle Valo return BIT(IWL_MVM_OFFCHANNEL_QUEUE); 221e705c121SKalle Valo 222e705c121SKalle Valo for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 223e705c121SKalle Valo if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE) 224e705c121SKalle Valo qmask |= BIT(vif->hw_queue[ac]); 225e705c121SKalle Valo } 226e705c121SKalle Valo 2274d339989SLiad Kaufman if (vif->type == NL80211_IFTYPE_AP || 2284d339989SLiad Kaufman vif->type == NL80211_IFTYPE_ADHOC) 229e705c121SKalle Valo qmask |= BIT(vif->cab_queue); 230e705c121SKalle Valo 231e705c121SKalle Valo return qmask; 232e705c121SKalle Valo } 233e705c121SKalle Valo 234e705c121SKalle Valo static void iwl_mvm_iface_hw_queues_iter(void *_data, u8 *mac, 235e705c121SKalle Valo struct ieee80211_vif *vif) 236e705c121SKalle Valo { 237e705c121SKalle Valo struct iwl_mvm_hw_queues_iface_iterator_data *data = _data; 238e705c121SKalle Valo 239e705c121SKalle Valo /* exclude the given vif */ 240e705c121SKalle Valo if (vif == data->exclude_vif) 241e705c121SKalle Valo return; 242e705c121SKalle Valo 243e705c121SKalle Valo data->used_hw_queues |= iwl_mvm_mac_get_queues_mask(vif); 244e705c121SKalle Valo } 245e705c121SKalle Valo 246e705c121SKalle Valo unsigned long iwl_mvm_get_used_hw_queues(struct iwl_mvm *mvm, 247e705c121SKalle Valo struct ieee80211_vif *exclude_vif) 248e705c121SKalle Valo { 249e705c121SKalle Valo struct iwl_mvm_hw_queues_iface_iterator_data data = { 250e705c121SKalle Valo .exclude_vif = exclude_vif, 251e705c121SKalle Valo .used_hw_queues = 252e705c121SKalle Valo BIT(IWL_MVM_OFFCHANNEL_QUEUE) | 253c8f54701SJohannes Berg BIT(mvm->aux_queue) | 254c8f54701SJohannes Berg BIT(IWL_MVM_DQA_GCAST_QUEUE), 255e705c121SKalle Valo }; 256e705c121SKalle Valo 257e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 258e705c121SKalle Valo 259e705c121SKalle Valo /* mark all VIF used hw queues */ 260e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 261e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 262e705c121SKalle Valo iwl_mvm_iface_hw_queues_iter, &data); 263e705c121SKalle Valo 264e705c121SKalle Valo return data.used_hw_queues; 265e705c121SKalle Valo } 266e705c121SKalle Valo 267e705c121SKalle Valo static void iwl_mvm_mac_iface_iterator(void *_data, u8 *mac, 268e705c121SKalle Valo struct ieee80211_vif *vif) 269e705c121SKalle Valo { 270e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data *data = _data; 271e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 272e705c121SKalle Valo 273e705c121SKalle Valo /* Iterator may already find the interface being added -- skip it */ 274e705c121SKalle Valo if (vif == data->vif) { 275e705c121SKalle Valo data->found_vif = true; 276e705c121SKalle Valo return; 277e705c121SKalle Valo } 278e705c121SKalle Valo 279e705c121SKalle Valo /* Mark MAC IDs as used by clearing the available bit, and 280e705c121SKalle Valo * (below) mark TSFs as used if their existing use is not 281e705c121SKalle Valo * compatible with the new interface type. 282e705c121SKalle Valo * No locking or atomic bit operations are needed since the 283e705c121SKalle Valo * data is on the stack of the caller function. 284e705c121SKalle Valo */ 285e705c121SKalle Valo __clear_bit(mvmvif->id, data->available_mac_ids); 286e705c121SKalle Valo 287e705c121SKalle Valo /* find a suitable tsf_id */ 288e705c121SKalle Valo iwl_mvm_mac_tsf_id_iter(_data, mac, vif); 289e705c121SKalle Valo } 290e705c121SKalle Valo 291e705c121SKalle Valo void iwl_mvm_mac_ctxt_recalc_tsf_id(struct iwl_mvm *mvm, 292e705c121SKalle Valo struct ieee80211_vif *vif) 293e705c121SKalle Valo { 294e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 295e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data data = { 296e705c121SKalle Valo .mvm = mvm, 297e705c121SKalle Valo .vif = vif, 298e705c121SKalle Valo .available_tsf_ids = { (1 << NUM_TSF_IDS) - 1 }, 299e705c121SKalle Valo /* no preference yet */ 300e705c121SKalle Valo .preferred_tsf = NUM_TSF_IDS, 301e705c121SKalle Valo }; 302e705c121SKalle Valo 303e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 304e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 305e705c121SKalle Valo iwl_mvm_mac_tsf_id_iter, &data); 306e705c121SKalle Valo 307e705c121SKalle Valo if (data.preferred_tsf != NUM_TSF_IDS) 308e705c121SKalle Valo mvmvif->tsf_id = data.preferred_tsf; 309e705c121SKalle Valo else if (!test_bit(mvmvif->tsf_id, data.available_tsf_ids)) 310e705c121SKalle Valo mvmvif->tsf_id = find_first_bit(data.available_tsf_ids, 311e705c121SKalle Valo NUM_TSF_IDS); 312e705c121SKalle Valo } 313e705c121SKalle Valo 314c8f54701SJohannes Berg int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 315e705c121SKalle Valo { 316e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 317e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data data = { 318e705c121SKalle Valo .mvm = mvm, 319e705c121SKalle Valo .vif = vif, 320e705c121SKalle Valo .available_mac_ids = { (1 << NUM_MAC_INDEX_DRIVER) - 1 }, 321e705c121SKalle Valo .available_tsf_ids = { (1 << NUM_TSF_IDS) - 1 }, 322e705c121SKalle Valo /* no preference yet */ 323e705c121SKalle Valo .preferred_tsf = NUM_TSF_IDS, 324e705c121SKalle Valo .found_vif = false, 325e705c121SKalle Valo }; 326e705c121SKalle Valo u32 ac; 32732026e8fSJohannes Berg int ret, i, queue_limit; 328e705c121SKalle Valo unsigned long used_hw_queues; 329e705c121SKalle Valo 330c8f54701SJohannes Berg lockdep_assert_held(&mvm->mutex); 331c8f54701SJohannes Berg 332e705c121SKalle Valo /* 333e705c121SKalle Valo * Allocate a MAC ID and a TSF for this MAC, along with the queues 334e705c121SKalle Valo * and other resources. 335e705c121SKalle Valo */ 336e705c121SKalle Valo 337e705c121SKalle Valo /* 338e705c121SKalle Valo * Before the iterator, we start with all MAC IDs and TSFs available. 339e705c121SKalle Valo * 340e705c121SKalle Valo * During iteration, all MAC IDs are cleared that are in use by other 341e705c121SKalle Valo * virtual interfaces, and all TSF IDs are cleared that can't be used 342e705c121SKalle Valo * by this new virtual interface because they're used by an interface 343e705c121SKalle Valo * that can't share it with the new one. 344e705c121SKalle Valo * At the same time, we check if there's a preferred TSF in the case 345e705c121SKalle Valo * that we should share it with another interface. 346e705c121SKalle Valo */ 347e705c121SKalle Valo 348e705c121SKalle Valo /* Currently, MAC ID 0 should be used only for the managed/IBSS vif */ 349e705c121SKalle Valo switch (vif->type) { 350e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 351e705c121SKalle Valo break; 352e705c121SKalle Valo case NL80211_IFTYPE_STATION: 353e705c121SKalle Valo if (!vif->p2p) 354e705c121SKalle Valo break; 355e705c121SKalle Valo /* fall through */ 356e705c121SKalle Valo default: 357e705c121SKalle Valo __clear_bit(0, data.available_mac_ids); 358e705c121SKalle Valo } 359e705c121SKalle Valo 360e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 361e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 362e705c121SKalle Valo iwl_mvm_mac_iface_iterator, &data); 363e705c121SKalle Valo 364e705c121SKalle Valo used_hw_queues = iwl_mvm_get_used_hw_queues(mvm, vif); 365e705c121SKalle Valo 366e705c121SKalle Valo /* 367e705c121SKalle Valo * In the case we're getting here during resume, it's similar to 368e705c121SKalle Valo * firmware restart, and with RESUME_ALL the iterator will find 369e705c121SKalle Valo * the vif being added already. 370e705c121SKalle Valo * We don't want to reassign any IDs in either case since doing 371e705c121SKalle Valo * so would probably assign different IDs (as interfaces aren't 372e705c121SKalle Valo * necessarily added in the same order), but the old IDs were 373e705c121SKalle Valo * preserved anyway, so skip ID assignment for both resume and 374e705c121SKalle Valo * recovery. 375e705c121SKalle Valo */ 376e705c121SKalle Valo if (data.found_vif) 377e705c121SKalle Valo return 0; 378e705c121SKalle Valo 379e705c121SKalle Valo /* Therefore, in recovery, we can't get here */ 380e705c121SKalle Valo if (WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))) 381e705c121SKalle Valo return -EBUSY; 382e705c121SKalle Valo 383e705c121SKalle Valo mvmvif->id = find_first_bit(data.available_mac_ids, 384e705c121SKalle Valo NUM_MAC_INDEX_DRIVER); 385e705c121SKalle Valo if (mvmvif->id == NUM_MAC_INDEX_DRIVER) { 386e705c121SKalle Valo IWL_ERR(mvm, "Failed to init MAC context - no free ID!\n"); 387e705c121SKalle Valo ret = -EIO; 388e705c121SKalle Valo goto exit_fail; 389e705c121SKalle Valo } 390e705c121SKalle Valo 391e705c121SKalle Valo if (data.preferred_tsf != NUM_TSF_IDS) 392e705c121SKalle Valo mvmvif->tsf_id = data.preferred_tsf; 393e705c121SKalle Valo else 394e705c121SKalle Valo mvmvif->tsf_id = find_first_bit(data.available_tsf_ids, 395e705c121SKalle Valo NUM_TSF_IDS); 396e705c121SKalle Valo if (mvmvif->tsf_id == NUM_TSF_IDS) { 397e705c121SKalle Valo IWL_ERR(mvm, "Failed to init MAC context - no free TSF!\n"); 398e705c121SKalle Valo ret = -EIO; 399e705c121SKalle Valo goto exit_fail; 400e705c121SKalle Valo } 401e705c121SKalle Valo 402e705c121SKalle Valo mvmvif->color = 0; 403e705c121SKalle Valo 404e705c121SKalle Valo INIT_LIST_HEAD(&mvmvif->time_event_data.list); 405e705c121SKalle Valo mvmvif->time_event_data.id = TE_MAX; 406e705c121SKalle Valo 407e705c121SKalle Valo /* No need to allocate data queues to P2P Device MAC.*/ 408e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 409e705c121SKalle Valo for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 410e705c121SKalle Valo vif->hw_queue[ac] = IEEE80211_INVAL_HW_QUEUE; 411e705c121SKalle Valo 412e705c121SKalle Valo return 0; 413e705c121SKalle Valo } 414e705c121SKalle Valo 41532026e8fSJohannes Berg /* 41632026e8fSJohannes Berg * queues in mac80211 almost entirely independent of 41732026e8fSJohannes Berg * the ones here - no real limit 41832026e8fSJohannes Berg */ 41932026e8fSJohannes Berg queue_limit = IEEE80211_MAX_QUEUES; 42032026e8fSJohannes Berg BUILD_BUG_ON(IEEE80211_MAX_QUEUES > 42132026e8fSJohannes Berg BITS_PER_BYTE * 42232026e8fSJohannes Berg sizeof(mvm->hw_queue_to_mac80211[0])); 42332026e8fSJohannes Berg 42424afba76SLiad Kaufman /* 42524afba76SLiad Kaufman * Find available queues, and allocate them to the ACs. When in 42624afba76SLiad Kaufman * DQA-mode they aren't really used, and this is done only so the 42724afba76SLiad Kaufman * mac80211 ieee80211_check_queues() function won't fail 42824afba76SLiad Kaufman */ 429e705c121SKalle Valo for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 43032026e8fSJohannes Berg u8 queue = find_first_zero_bit(&used_hw_queues, queue_limit); 431e705c121SKalle Valo 43232026e8fSJohannes Berg if (queue >= queue_limit) { 433e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate queue\n"); 434e705c121SKalle Valo ret = -EIO; 435e705c121SKalle Valo goto exit_fail; 436e705c121SKalle Valo } 437e705c121SKalle Valo 438e705c121SKalle Valo __set_bit(queue, &used_hw_queues); 439e705c121SKalle Valo vif->hw_queue[ac] = queue; 440e705c121SKalle Valo } 441e705c121SKalle Valo 442e705c121SKalle Valo /* Allocate the CAB queue for softAP and GO interfaces */ 443fc07bd8cSSara Sharon if (vif->type == NL80211_IFTYPE_AP || 444fc07bd8cSSara Sharon vif->type == NL80211_IFTYPE_ADHOC) { 445e2af3fabSSara Sharon /* 446e2af3fabSSara Sharon * For TVQM this will be overwritten later with the FW assigned 447e2af3fabSSara Sharon * queue value (when queue is enabled). 448e2af3fabSSara Sharon */ 449c8f54701SJohannes Berg mvmvif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE; 450c8f54701SJohannes Berg vif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE; 451e705c121SKalle Valo } else { 452e705c121SKalle Valo vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 453e705c121SKalle Valo } 454e705c121SKalle Valo 4550ae98812SSara Sharon mvmvif->bcast_sta.sta_id = IWL_MVM_INVALID_STA; 4560ae98812SSara Sharon mvmvif->mcast_sta.sta_id = IWL_MVM_INVALID_STA; 4570ae98812SSara Sharon mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 458e705c121SKalle Valo 459e705c121SKalle Valo for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) 460e705c121SKalle Valo mvmvif->smps_requests[i] = IEEE80211_SMPS_AUTOMATIC; 461e705c121SKalle Valo 462e705c121SKalle Valo return 0; 463e705c121SKalle Valo 464e705c121SKalle Valo exit_fail: 465e705c121SKalle Valo memset(mvmvif, 0, sizeof(struct iwl_mvm_vif)); 466e705c121SKalle Valo memset(vif->hw_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(vif->hw_queue)); 467e705c121SKalle Valo vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 468e705c121SKalle Valo return ret; 469e705c121SKalle Valo } 470e705c121SKalle Valo 471e705c121SKalle Valo static void iwl_mvm_ack_rates(struct iwl_mvm *mvm, 472e705c121SKalle Valo struct ieee80211_vif *vif, 47357fbcce3SJohannes Berg enum nl80211_band band, 474e705c121SKalle Valo u8 *cck_rates, u8 *ofdm_rates) 475e705c121SKalle Valo { 476e705c121SKalle Valo struct ieee80211_supported_band *sband; 477e705c121SKalle Valo unsigned long basic = vif->bss_conf.basic_rates; 478e705c121SKalle Valo int lowest_present_ofdm = 100; 479e705c121SKalle Valo int lowest_present_cck = 100; 480e705c121SKalle Valo u8 cck = 0; 481e705c121SKalle Valo u8 ofdm = 0; 482e705c121SKalle Valo int i; 483e705c121SKalle Valo 484e705c121SKalle Valo sband = mvm->hw->wiphy->bands[band]; 485e705c121SKalle Valo 486e705c121SKalle Valo for_each_set_bit(i, &basic, BITS_PER_LONG) { 487e705c121SKalle Valo int hw = sband->bitrates[i].hw_value; 488e705c121SKalle Valo if (hw >= IWL_FIRST_OFDM_RATE) { 489e705c121SKalle Valo ofdm |= BIT(hw - IWL_FIRST_OFDM_RATE); 490e705c121SKalle Valo if (lowest_present_ofdm > hw) 491e705c121SKalle Valo lowest_present_ofdm = hw; 492e705c121SKalle Valo } else { 493e705c121SKalle Valo BUILD_BUG_ON(IWL_FIRST_CCK_RATE != 0); 494e705c121SKalle Valo 495e705c121SKalle Valo cck |= BIT(hw); 496e705c121SKalle Valo if (lowest_present_cck > hw) 497e705c121SKalle Valo lowest_present_cck = hw; 498e705c121SKalle Valo } 499e705c121SKalle Valo } 500e705c121SKalle Valo 501e705c121SKalle Valo /* 502e705c121SKalle Valo * Now we've got the basic rates as bitmaps in the ofdm and cck 503e705c121SKalle Valo * variables. This isn't sufficient though, as there might not 504e705c121SKalle Valo * be all the right rates in the bitmap. E.g. if the only basic 505e705c121SKalle Valo * rates are 5.5 Mbps and 11 Mbps, we still need to add 1 Mbps 506e705c121SKalle Valo * and 6 Mbps because the 802.11-2007 standard says in 9.6: 507e705c121SKalle Valo * 508e705c121SKalle Valo * [...] a STA responding to a received frame shall transmit 509e705c121SKalle Valo * its Control Response frame [...] at the highest rate in the 510e705c121SKalle Valo * BSSBasicRateSet parameter that is less than or equal to the 511e705c121SKalle Valo * rate of the immediately previous frame in the frame exchange 512e705c121SKalle Valo * sequence ([...]) and that is of the same modulation class 513e705c121SKalle Valo * ([...]) as the received frame. If no rate contained in the 514e705c121SKalle Valo * BSSBasicRateSet parameter meets these conditions, then the 515e705c121SKalle Valo * control frame sent in response to a received frame shall be 516e705c121SKalle Valo * transmitted at the highest mandatory rate of the PHY that is 517e705c121SKalle Valo * less than or equal to the rate of the received frame, and 518e705c121SKalle Valo * that is of the same modulation class as the received frame. 519e705c121SKalle Valo * 520e705c121SKalle Valo * As a consequence, we need to add all mandatory rates that are 521e705c121SKalle Valo * lower than all of the basic rates to these bitmaps. 522e705c121SKalle Valo */ 523e705c121SKalle Valo 524e705c121SKalle Valo if (IWL_RATE_24M_INDEX < lowest_present_ofdm) 525e705c121SKalle Valo ofdm |= IWL_RATE_BIT_MSK(24) >> IWL_FIRST_OFDM_RATE; 526e705c121SKalle Valo if (IWL_RATE_12M_INDEX < lowest_present_ofdm) 527e705c121SKalle Valo ofdm |= IWL_RATE_BIT_MSK(12) >> IWL_FIRST_OFDM_RATE; 528e705c121SKalle Valo /* 6M already there or needed so always add */ 529e705c121SKalle Valo ofdm |= IWL_RATE_BIT_MSK(6) >> IWL_FIRST_OFDM_RATE; 530e705c121SKalle Valo 531e705c121SKalle Valo /* 532e705c121SKalle Valo * CCK is a bit more complex with DSSS vs. HR/DSSS vs. ERP. 533e705c121SKalle Valo * Note, however: 534e705c121SKalle Valo * - if no CCK rates are basic, it must be ERP since there must 535e705c121SKalle Valo * be some basic rates at all, so they're OFDM => ERP PHY 536e705c121SKalle Valo * (or we're in 5 GHz, and the cck bitmap will never be used) 537e705c121SKalle Valo * - if 11M is a basic rate, it must be ERP as well, so add 5.5M 538e705c121SKalle Valo * - if 5.5M is basic, 1M and 2M are mandatory 539e705c121SKalle Valo * - if 2M is basic, 1M is mandatory 540e705c121SKalle Valo * - if 1M is basic, that's the only valid ACK rate. 541e705c121SKalle Valo * As a consequence, it's not as complicated as it sounds, just add 542e705c121SKalle Valo * any lower rates to the ACK rate bitmap. 543e705c121SKalle Valo */ 544e705c121SKalle Valo if (IWL_RATE_11M_INDEX < lowest_present_cck) 545e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(11) >> IWL_FIRST_CCK_RATE; 546e705c121SKalle Valo if (IWL_RATE_5M_INDEX < lowest_present_cck) 547e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(5) >> IWL_FIRST_CCK_RATE; 548e705c121SKalle Valo if (IWL_RATE_2M_INDEX < lowest_present_cck) 549e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(2) >> IWL_FIRST_CCK_RATE; 550e705c121SKalle Valo /* 1M already there or needed so always add */ 551e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(1) >> IWL_FIRST_CCK_RATE; 552e705c121SKalle Valo 553e705c121SKalle Valo *cck_rates = cck; 554e705c121SKalle Valo *ofdm_rates = ofdm; 555e705c121SKalle Valo } 556e705c121SKalle Valo 557e705c121SKalle Valo static void iwl_mvm_mac_ctxt_set_ht_flags(struct iwl_mvm *mvm, 558e705c121SKalle Valo struct ieee80211_vif *vif, 559e705c121SKalle Valo struct iwl_mac_ctx_cmd *cmd) 560e705c121SKalle Valo { 561e705c121SKalle Valo /* for both sta and ap, ht_operation_mode hold the protection_mode */ 562e705c121SKalle Valo u8 protection_mode = vif->bss_conf.ht_operation_mode & 563e705c121SKalle Valo IEEE80211_HT_OP_MODE_PROTECTION; 564e705c121SKalle Valo /* The fw does not distinguish between ht and fat */ 565e705c121SKalle Valo u32 ht_flag = MAC_PROT_FLG_HT_PROT | MAC_PROT_FLG_FAT_PROT; 566e705c121SKalle Valo 567e705c121SKalle Valo IWL_DEBUG_RATE(mvm, "protection mode set to %d\n", protection_mode); 568e705c121SKalle Valo /* 569e705c121SKalle Valo * See section 9.23.3.1 of IEEE 80211-2012. 570e705c121SKalle Valo * Nongreenfield HT STAs Present is not supported. 571e705c121SKalle Valo */ 572e705c121SKalle Valo switch (protection_mode) { 573e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_NONE: 574e705c121SKalle Valo break; 575e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER: 576e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: 577e705c121SKalle Valo cmd->protection_flags |= cpu_to_le32(ht_flag); 578e705c121SKalle Valo break; 579e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: 580e705c121SKalle Valo /* Protect when channel wider than 20MHz */ 581e705c121SKalle Valo if (vif->bss_conf.chandef.width > NL80211_CHAN_WIDTH_20) 582e705c121SKalle Valo cmd->protection_flags |= cpu_to_le32(ht_flag); 583e705c121SKalle Valo break; 584e705c121SKalle Valo default: 585e705c121SKalle Valo IWL_ERR(mvm, "Illegal protection mode %d\n", 586e705c121SKalle Valo protection_mode); 587e705c121SKalle Valo break; 588e705c121SKalle Valo } 589e705c121SKalle Valo } 590e705c121SKalle Valo 591e705c121SKalle Valo static void iwl_mvm_mac_ctxt_cmd_common(struct iwl_mvm *mvm, 592e705c121SKalle Valo struct ieee80211_vif *vif, 593e705c121SKalle Valo struct iwl_mac_ctx_cmd *cmd, 594e705c121SKalle Valo const u8 *bssid_override, 595e705c121SKalle Valo u32 action) 596e705c121SKalle Valo { 597e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 598e705c121SKalle Valo struct ieee80211_chanctx_conf *chanctx; 599e705c121SKalle Valo bool ht_enabled = !!(vif->bss_conf.ht_operation_mode & 600e705c121SKalle Valo IEEE80211_HT_OP_MODE_PROTECTION); 601e705c121SKalle Valo u8 cck_ack_rates, ofdm_ack_rates; 602e705c121SKalle Valo const u8 *bssid = bssid_override ?: vif->bss_conf.bssid; 603e705c121SKalle Valo int i; 604e705c121SKalle Valo 605e705c121SKalle Valo cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 606e705c121SKalle Valo mvmvif->color)); 607e705c121SKalle Valo cmd->action = cpu_to_le32(action); 608e705c121SKalle Valo 609e705c121SKalle Valo switch (vif->type) { 610e705c121SKalle Valo case NL80211_IFTYPE_STATION: 611e705c121SKalle Valo if (vif->p2p) 612e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_P2P_STA); 613e705c121SKalle Valo else 614e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_BSS_STA); 615e705c121SKalle Valo break; 616e705c121SKalle Valo case NL80211_IFTYPE_AP: 617e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_GO); 618e705c121SKalle Valo break; 619e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 620e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_LISTENER); 621e705c121SKalle Valo break; 622e705c121SKalle Valo case NL80211_IFTYPE_P2P_DEVICE: 623e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_P2P_DEVICE); 624e705c121SKalle Valo break; 625e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 626e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_IBSS); 627e705c121SKalle Valo break; 628e705c121SKalle Valo default: 629e705c121SKalle Valo WARN_ON_ONCE(1); 630e705c121SKalle Valo } 631e705c121SKalle Valo 632e705c121SKalle Valo cmd->tsf_id = cpu_to_le32(mvmvif->tsf_id); 633e705c121SKalle Valo 634e705c121SKalle Valo memcpy(cmd->node_addr, vif->addr, ETH_ALEN); 635e705c121SKalle Valo 636e705c121SKalle Valo if (bssid) 637e705c121SKalle Valo memcpy(cmd->bssid_addr, bssid, ETH_ALEN); 638e705c121SKalle Valo else 639e705c121SKalle Valo eth_broadcast_addr(cmd->bssid_addr); 640e705c121SKalle Valo 641e705c121SKalle Valo rcu_read_lock(); 642e705c121SKalle Valo chanctx = rcu_dereference(vif->chanctx_conf); 643e705c121SKalle Valo iwl_mvm_ack_rates(mvm, vif, chanctx ? chanctx->def.chan->band 64457fbcce3SJohannes Berg : NL80211_BAND_2GHZ, 645e705c121SKalle Valo &cck_ack_rates, &ofdm_ack_rates); 646e705c121SKalle Valo rcu_read_unlock(); 647e705c121SKalle Valo 648e705c121SKalle Valo cmd->cck_rates = cpu_to_le32((u32)cck_ack_rates); 649e705c121SKalle Valo cmd->ofdm_rates = cpu_to_le32((u32)ofdm_ack_rates); 650e705c121SKalle Valo 651e705c121SKalle Valo cmd->cck_short_preamble = 652e705c121SKalle Valo cpu_to_le32(vif->bss_conf.use_short_preamble ? 653e705c121SKalle Valo MAC_FLG_SHORT_PREAMBLE : 0); 654e705c121SKalle Valo cmd->short_slot = 655e705c121SKalle Valo cpu_to_le32(vif->bss_conf.use_short_slot ? 656e705c121SKalle Valo MAC_FLG_SHORT_SLOT : 0); 657e705c121SKalle Valo 658bd6f5bd7SAyala Beker cmd->filter_flags = cpu_to_le32(MAC_FILTER_ACCEPT_GRP); 659bd6f5bd7SAyala Beker 660e705c121SKalle Valo for (i = 0; i < IEEE80211_NUM_ACS; i++) { 661cf6c6ea3SEmmanuel Grumbach u8 txf = iwl_mvm_mac_ac_to_tx_fifo(mvm, i); 662e705c121SKalle Valo 663e705c121SKalle Valo cmd->ac[txf].cw_min = 664e705c121SKalle Valo cpu_to_le16(mvmvif->queue_params[i].cw_min); 665e705c121SKalle Valo cmd->ac[txf].cw_max = 666e705c121SKalle Valo cpu_to_le16(mvmvif->queue_params[i].cw_max); 667e705c121SKalle Valo cmd->ac[txf].edca_txop = 668e705c121SKalle Valo cpu_to_le16(mvmvif->queue_params[i].txop * 32); 669e705c121SKalle Valo cmd->ac[txf].aifsn = mvmvif->queue_params[i].aifs; 670e705c121SKalle Valo cmd->ac[txf].fifos_mask = BIT(txf); 671e705c121SKalle Valo } 672e705c121SKalle Valo 673e705c121SKalle Valo if (vif->bss_conf.qos) 674e705c121SKalle Valo cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_UPDATE_EDCA); 675e705c121SKalle Valo 676e705c121SKalle Valo if (vif->bss_conf.use_cts_prot) 677e705c121SKalle Valo cmd->protection_flags |= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT); 678e705c121SKalle Valo 679e705c121SKalle Valo IWL_DEBUG_RATE(mvm, "use_cts_prot %d, ht_operation_mode %d\n", 680e705c121SKalle Valo vif->bss_conf.use_cts_prot, 681e705c121SKalle Valo vif->bss_conf.ht_operation_mode); 682e705c121SKalle Valo if (vif->bss_conf.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) 683e705c121SKalle Valo cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_TGN); 684e705c121SKalle Valo if (ht_enabled) 685e705c121SKalle Valo iwl_mvm_mac_ctxt_set_ht_flags(mvm, vif, cmd); 686e705c121SKalle Valo } 687e705c121SKalle Valo 688e705c121SKalle Valo static int iwl_mvm_mac_ctxt_send_cmd(struct iwl_mvm *mvm, 689e705c121SKalle Valo struct iwl_mac_ctx_cmd *cmd) 690e705c121SKalle Valo { 691e705c121SKalle Valo int ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, 0, 692e705c121SKalle Valo sizeof(*cmd), cmd); 693e705c121SKalle Valo if (ret) 694e705c121SKalle Valo IWL_ERR(mvm, "Failed to send MAC context (action:%d): %d\n", 695e705c121SKalle Valo le32_to_cpu(cmd->action), ret); 696e705c121SKalle Valo return ret; 697e705c121SKalle Valo } 698e705c121SKalle Valo 699e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_sta(struct iwl_mvm *mvm, 700e705c121SKalle Valo struct ieee80211_vif *vif, 701e705c121SKalle Valo u32 action, bool force_assoc_off, 702e705c121SKalle Valo const u8 *bssid_override) 703e705c121SKalle Valo { 704e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 705e705c121SKalle Valo struct iwl_mac_data_sta *ctxt_sta; 706e705c121SKalle Valo 707e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_STATION); 708e705c121SKalle Valo 709e705c121SKalle Valo /* Fill the common data for all mac context types */ 710e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, bssid_override, action); 711e705c121SKalle Valo 712e705c121SKalle Valo if (vif->p2p) { 713e705c121SKalle Valo struct ieee80211_p2p_noa_attr *noa = 714e705c121SKalle Valo &vif->bss_conf.p2p_noa_attr; 715e705c121SKalle Valo 716e705c121SKalle Valo cmd.p2p_sta.ctwin = cpu_to_le32(noa->oppps_ctwindow & 717e705c121SKalle Valo IEEE80211_P2P_OPPPS_CTWINDOW_MASK); 718e705c121SKalle Valo ctxt_sta = &cmd.p2p_sta.sta; 719e705c121SKalle Valo } else { 720e705c121SKalle Valo ctxt_sta = &cmd.sta; 721e705c121SKalle Valo } 722e705c121SKalle Valo 723e705c121SKalle Valo /* We need the dtim_period to set the MAC as associated */ 724e705c121SKalle Valo if (vif->bss_conf.assoc && vif->bss_conf.dtim_period && 725e705c121SKalle Valo !force_assoc_off) { 726e705c121SKalle Valo u32 dtim_offs; 727e705c121SKalle Valo 728e705c121SKalle Valo /* 729e705c121SKalle Valo * The DTIM count counts down, so when it is N that means N 730e705c121SKalle Valo * more beacon intervals happen until the DTIM TBTT. Therefore 731e705c121SKalle Valo * add this to the current time. If that ends up being in the 732e705c121SKalle Valo * future, the firmware will handle it. 733e705c121SKalle Valo * 734e705c121SKalle Valo * Also note that the system_timestamp (which we get here as 735e705c121SKalle Valo * "sync_device_ts") and TSF timestamp aren't at exactly the 736e705c121SKalle Valo * same offset in the frame -- the TSF is at the first symbol 737e705c121SKalle Valo * of the TSF, the system timestamp is at signal acquisition 738e705c121SKalle Valo * time. This means there's an offset between them of at most 739e705c121SKalle Valo * a few hundred microseconds (24 * 8 bits + PLCP time gives 740e705c121SKalle Valo * 384us in the longest case), this is currently not relevant 741e705c121SKalle Valo * as the firmware wakes up around 2ms before the TBTT. 742e705c121SKalle Valo */ 743e705c121SKalle Valo dtim_offs = vif->bss_conf.sync_dtim_count * 744e705c121SKalle Valo vif->bss_conf.beacon_int; 745e705c121SKalle Valo /* convert TU to usecs */ 746e705c121SKalle Valo dtim_offs *= 1024; 747e705c121SKalle Valo 748e705c121SKalle Valo ctxt_sta->dtim_tsf = 749e705c121SKalle Valo cpu_to_le64(vif->bss_conf.sync_tsf + dtim_offs); 750e705c121SKalle Valo ctxt_sta->dtim_time = 751e705c121SKalle Valo cpu_to_le32(vif->bss_conf.sync_device_ts + dtim_offs); 752b5669727SAvraham Stern ctxt_sta->assoc_beacon_arrive_time = 753b5669727SAvraham Stern cpu_to_le32(vif->bss_conf.sync_device_ts); 754e705c121SKalle Valo 755e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "DTIM TBTT is 0x%llx/0x%x, offset %d\n", 756e705c121SKalle Valo le64_to_cpu(ctxt_sta->dtim_tsf), 757e705c121SKalle Valo le32_to_cpu(ctxt_sta->dtim_time), 758e705c121SKalle Valo dtim_offs); 759e705c121SKalle Valo 760e705c121SKalle Valo ctxt_sta->is_assoc = cpu_to_le32(1); 761e705c121SKalle Valo } else { 762e705c121SKalle Valo ctxt_sta->is_assoc = cpu_to_le32(0); 763e705c121SKalle Valo 764e705c121SKalle Valo /* Allow beacons to pass through as long as we are not 765e705c121SKalle Valo * associated, or we do not have dtim period information. 766e705c121SKalle Valo */ 767e705c121SKalle Valo cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); 768e705c121SKalle Valo } 769e705c121SKalle Valo 770e705c121SKalle Valo ctxt_sta->bi = cpu_to_le32(vif->bss_conf.beacon_int); 771e705c121SKalle Valo ctxt_sta->bi_reciprocal = 772e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int)); 773e705c121SKalle Valo ctxt_sta->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int * 774e705c121SKalle Valo vif->bss_conf.dtim_period); 775e705c121SKalle Valo ctxt_sta->dtim_reciprocal = 776e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int * 777e705c121SKalle Valo vif->bss_conf.dtim_period)); 778e705c121SKalle Valo 779e705c121SKalle Valo ctxt_sta->listen_interval = cpu_to_le32(mvm->hw->conf.listen_interval); 780e705c121SKalle Valo ctxt_sta->assoc_id = cpu_to_le32(vif->bss_conf.aid); 781e705c121SKalle Valo 782e705c121SKalle Valo if (vif->probe_req_reg && vif->bss_conf.assoc && vif->p2p) 783e705c121SKalle Valo cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); 784e705c121SKalle Valo 785230ba6c5SLuca Coelho if (vif->bss_conf.assoc && vif->bss_conf.he_support && 786230ba6c5SLuca Coelho !iwlwifi_mod_params.disable_11ax) 787514c3069SLuca Coelho cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_11AX); 788514c3069SLuca Coelho 789e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 790e705c121SKalle Valo } 791e705c121SKalle Valo 792e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_listener(struct iwl_mvm *mvm, 793e705c121SKalle Valo struct ieee80211_vif *vif, 794e705c121SKalle Valo u32 action) 795e705c121SKalle Valo { 796e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 797b13f43a4SEmmanuel Grumbach u32 tfd_queue_msk = BIT(mvm->snif_queue); 798c8f54701SJohannes Berg int ret; 799e705c121SKalle Valo 800e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_MONITOR); 801e705c121SKalle Valo 802e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 803e705c121SKalle Valo 804e705c121SKalle Valo cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROMISC | 805e705c121SKalle Valo MAC_FILTER_IN_CONTROL_AND_MGMT | 806e705c121SKalle Valo MAC_FILTER_IN_BEACON | 807e705c121SKalle Valo MAC_FILTER_IN_PROBE_REQUEST | 808e705c121SKalle Valo MAC_FILTER_IN_CRC32); 809e705c121SKalle Valo ieee80211_hw_set(mvm->hw, RX_INCLUDES_FCS); 810e705c121SKalle Valo 8110e39eb03SChaya Rachel Ivgi /* Allocate sniffer station */ 8120e39eb03SChaya Rachel Ivgi ret = iwl_mvm_allocate_int_sta(mvm, &mvm->snif_sta, tfd_queue_msk, 813ced19f26SSara Sharon vif->type, IWL_STA_GENERAL_PURPOSE); 8140e39eb03SChaya Rachel Ivgi if (ret) 8150e39eb03SChaya Rachel Ivgi return ret; 8160e39eb03SChaya Rachel Ivgi 817e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 818e705c121SKalle Valo } 819e705c121SKalle Valo 820e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_ibss(struct iwl_mvm *mvm, 821e705c121SKalle Valo struct ieee80211_vif *vif, 822e705c121SKalle Valo u32 action) 823e705c121SKalle Valo { 824e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 825e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 826e705c121SKalle Valo 827e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_ADHOC); 828e705c121SKalle Valo 829e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 830e705c121SKalle Valo 831e705c121SKalle Valo cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_BEACON | 832e705c121SKalle Valo MAC_FILTER_IN_PROBE_REQUEST); 833e705c121SKalle Valo 834e705c121SKalle Valo /* cmd.ibss.beacon_time/cmd.ibss.beacon_tsf are curently ignored */ 835e705c121SKalle Valo cmd.ibss.bi = cpu_to_le32(vif->bss_conf.beacon_int); 836e705c121SKalle Valo cmd.ibss.bi_reciprocal = 837e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int)); 838e705c121SKalle Valo 839e705c121SKalle Valo /* TODO: Assumes that the beacon id == mac context id */ 840e705c121SKalle Valo cmd.ibss.beacon_template = cpu_to_le32(mvmvif->id); 841e705c121SKalle Valo 842e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 843e705c121SKalle Valo } 844e705c121SKalle Valo 845e705c121SKalle Valo struct iwl_mvm_go_iterator_data { 846e705c121SKalle Valo bool go_active; 847e705c121SKalle Valo }; 848e705c121SKalle Valo 849e705c121SKalle Valo static void iwl_mvm_go_iterator(void *_data, u8 *mac, struct ieee80211_vif *vif) 850e705c121SKalle Valo { 851e705c121SKalle Valo struct iwl_mvm_go_iterator_data *data = _data; 852e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 853e705c121SKalle Valo 854e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP && vif->p2p && 855e705c121SKalle Valo mvmvif->ap_ibss_active) 856e705c121SKalle Valo data->go_active = true; 857e705c121SKalle Valo } 858e705c121SKalle Valo 859e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_p2p_device(struct iwl_mvm *mvm, 860e705c121SKalle Valo struct ieee80211_vif *vif, 861e705c121SKalle Valo u32 action) 862e705c121SKalle Valo { 863e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 864e705c121SKalle Valo struct iwl_mvm_go_iterator_data data = {}; 865e705c121SKalle Valo 866e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_P2P_DEVICE); 867e705c121SKalle Valo 868e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 869e705c121SKalle Valo 870e705c121SKalle Valo cmd.protection_flags |= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT); 871e705c121SKalle Valo 872e705c121SKalle Valo /* Override the filter flags to accept only probe requests */ 873e705c121SKalle Valo cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); 874e705c121SKalle Valo 875e705c121SKalle Valo /* 876e705c121SKalle Valo * This flag should be set to true when the P2P Device is 877e705c121SKalle Valo * discoverable and there is at least another active P2P GO. Settings 878e705c121SKalle Valo * this flag will allow the P2P Device to be discoverable on other 879e705c121SKalle Valo * channels in addition to its listen channel. 880e705c121SKalle Valo * Note that this flag should not be set in other cases as it opens the 881e705c121SKalle Valo * Rx filters on all MAC and increases the number of interrupts. 882e705c121SKalle Valo */ 883e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 884e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 885e705c121SKalle Valo iwl_mvm_go_iterator, &data); 886e705c121SKalle Valo 887e705c121SKalle Valo cmd.p2p_dev.is_disc_extended = cpu_to_le32(data.go_active ? 1 : 0); 888e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 889e705c121SKalle Valo } 890e705c121SKalle Valo 891e705c121SKalle Valo static void iwl_mvm_mac_ctxt_set_tim(struct iwl_mvm *mvm, 8928364fbb4SSara Sharon __le32 *tim_index, __le32 *tim_size, 893e705c121SKalle Valo u8 *beacon, u32 frame_size) 894e705c121SKalle Valo { 895e705c121SKalle Valo u32 tim_idx; 896e705c121SKalle Valo struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon; 897e705c121SKalle Valo 898e705c121SKalle Valo /* The index is relative to frame start but we start looking at the 899e705c121SKalle Valo * variable-length part of the beacon. */ 900e705c121SKalle Valo tim_idx = mgmt->u.beacon.variable - beacon; 901e705c121SKalle Valo 902e705c121SKalle Valo /* Parse variable-length elements of beacon to find WLAN_EID_TIM */ 903e705c121SKalle Valo while ((tim_idx < (frame_size - 2)) && 904e705c121SKalle Valo (beacon[tim_idx] != WLAN_EID_TIM)) 905e705c121SKalle Valo tim_idx += beacon[tim_idx+1] + 2; 906e705c121SKalle Valo 907e705c121SKalle Valo /* If TIM field was found, set variables */ 908e705c121SKalle Valo if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) { 9098364fbb4SSara Sharon *tim_index = cpu_to_le32(tim_idx); 9108364fbb4SSara Sharon *tim_size = cpu_to_le32((u32)beacon[tim_idx + 1]); 911e705c121SKalle Valo } else { 912e705c121SKalle Valo IWL_WARN(mvm, "Unable to find TIM Element in beacon\n"); 913e705c121SKalle Valo } 914e705c121SKalle Valo } 915e705c121SKalle Valo 916d3a108a4SAndrei Otcheretianski static u32 iwl_mvm_find_ie_offset(u8 *beacon, u8 eid, u32 frame_size) 917d3a108a4SAndrei Otcheretianski { 918d3a108a4SAndrei Otcheretianski struct ieee80211_mgmt *mgmt = (void *)beacon; 919d3a108a4SAndrei Otcheretianski const u8 *ie; 920d3a108a4SAndrei Otcheretianski 921d3a108a4SAndrei Otcheretianski if (WARN_ON_ONCE(frame_size <= (mgmt->u.beacon.variable - beacon))) 922d3a108a4SAndrei Otcheretianski return 0; 923d3a108a4SAndrei Otcheretianski 924d3a108a4SAndrei Otcheretianski frame_size -= mgmt->u.beacon.variable - beacon; 925d3a108a4SAndrei Otcheretianski 926d3a108a4SAndrei Otcheretianski ie = cfg80211_find_ie(eid, mgmt->u.beacon.variable, frame_size); 927d3a108a4SAndrei Otcheretianski if (!ie) 928d3a108a4SAndrei Otcheretianski return 0; 929d3a108a4SAndrei Otcheretianski 930d3a108a4SAndrei Otcheretianski return ie - beacon; 931d3a108a4SAndrei Otcheretianski } 932d3a108a4SAndrei Otcheretianski 9336ca33f8bSHaim Dreyfuss static u8 iwl_mvm_mac_ctxt_get_lowest_rate(struct ieee80211_tx_info *info, 9346ca33f8bSHaim Dreyfuss struct ieee80211_vif *vif) 9356ca33f8bSHaim Dreyfuss { 9366ca33f8bSHaim Dreyfuss u8 rate; 9376ca33f8bSHaim Dreyfuss 9386ca33f8bSHaim Dreyfuss if (info->band == NL80211_BAND_5GHZ || vif->p2p) 9396ca33f8bSHaim Dreyfuss rate = IWL_FIRST_OFDM_RATE; 9406ca33f8bSHaim Dreyfuss else 9416ca33f8bSHaim Dreyfuss rate = IWL_FIRST_CCK_RATE; 9426ca33f8bSHaim Dreyfuss 9436ca33f8bSHaim Dreyfuss return rate; 9446ca33f8bSHaim Dreyfuss } 9456ca33f8bSHaim Dreyfuss 94609856582SLuca Coelho static void iwl_mvm_mac_ctxt_set_tx(struct iwl_mvm *mvm, 947e705c121SKalle Valo struct ieee80211_vif *vif, 94809856582SLuca Coelho struct sk_buff *beacon, 94909856582SLuca Coelho struct iwl_tx_cmd *tx) 950e705c121SKalle Valo { 951e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 952e705c121SKalle Valo struct ieee80211_tx_info *info; 9536ca33f8bSHaim Dreyfuss u8 rate; 9546ca33f8bSHaim Dreyfuss u32 tx_flags; 955e705c121SKalle Valo 956e705c121SKalle Valo info = IEEE80211_SKB_CB(beacon); 957e705c121SKalle Valo 958e705c121SKalle Valo /* Set up TX command fields */ 95909856582SLuca Coelho tx->len = cpu_to_le16((u16)beacon->len); 96009856582SLuca Coelho tx->sta_id = mvmvif->bcast_sta.sta_id; 96109856582SLuca Coelho tx->life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE); 962e705c121SKalle Valo tx_flags = TX_CMD_FLG_SEQ_CTL | TX_CMD_FLG_TSF; 963e705c121SKalle Valo tx_flags |= 964e705c121SKalle Valo iwl_mvm_bt_coex_tx_prio(mvm, (void *)beacon->data, info, 0) << 965e705c121SKalle Valo TX_CMD_FLG_BT_PRIO_POS; 96609856582SLuca Coelho tx->tx_flags = cpu_to_le32(tx_flags); 967e705c121SKalle Valo 9681e3c3c35SEmmanuel Grumbach if (!fw_has_capa(&mvm->fw->ucode_capa, 9691e3c3c35SEmmanuel Grumbach IWL_UCODE_TLV_CAPA_BEACON_ANT_SELECTION)) { 970e705c121SKalle Valo mvm->mgmt_last_antenna_idx = 971e705c121SKalle Valo iwl_mvm_next_antenna(mvm, iwl_mvm_get_valid_tx_ant(mvm), 972e705c121SKalle Valo mvm->mgmt_last_antenna_idx); 9731e3c3c35SEmmanuel Grumbach } 974e705c121SKalle Valo 97509856582SLuca Coelho tx->rate_n_flags = 976e705c121SKalle Valo cpu_to_le32(BIT(mvm->mgmt_last_antenna_idx) << 977e705c121SKalle Valo RATE_MCS_ANT_POS); 978e705c121SKalle Valo 9796ca33f8bSHaim Dreyfuss rate = iwl_mvm_mac_ctxt_get_lowest_rate(info, vif); 980e705c121SKalle Valo 98109856582SLuca Coelho tx->rate_n_flags |= cpu_to_le32(iwl_mvm_mac80211_idx_to_hwrate(rate)); 9826ca33f8bSHaim Dreyfuss if (rate == IWL_FIRST_CCK_RATE) 9836ca33f8bSHaim Dreyfuss tx->rate_n_flags |= cpu_to_le32(RATE_MCS_CCK_MSK); 9846ca33f8bSHaim Dreyfuss 98509856582SLuca Coelho } 986e705c121SKalle Valo 98709856582SLuca Coelho static int iwl_mvm_mac_ctxt_send_beacon_cmd(struct iwl_mvm *mvm, 98809856582SLuca Coelho struct sk_buff *beacon, 98909856582SLuca Coelho void *data, int len) 99009856582SLuca Coelho { 99109856582SLuca Coelho struct iwl_host_cmd cmd = { 99209856582SLuca Coelho .id = BEACON_TEMPLATE_CMD, 99309856582SLuca Coelho .flags = CMD_ASYNC, 99409856582SLuca Coelho }; 99509856582SLuca Coelho 99609856582SLuca Coelho cmd.len[0] = len; 99709856582SLuca Coelho cmd.data[0] = data; 998e705c121SKalle Valo cmd.dataflags[0] = 0; 99909856582SLuca Coelho cmd.len[1] = beacon->len; 1000e705c121SKalle Valo cmd.data[1] = beacon->data; 1001e705c121SKalle Valo cmd.dataflags[1] = IWL_HCMD_DFL_DUP; 1002e705c121SKalle Valo 1003e705c121SKalle Valo return iwl_mvm_send_cmd(mvm, &cmd); 1004e705c121SKalle Valo } 1005e705c121SKalle Valo 100609856582SLuca Coelho static int iwl_mvm_mac_ctxt_send_beacon_v6(struct iwl_mvm *mvm, 100709856582SLuca Coelho struct ieee80211_vif *vif, 100809856582SLuca Coelho struct sk_buff *beacon) 100909856582SLuca Coelho { 101009856582SLuca Coelho struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 101109856582SLuca Coelho struct iwl_mac_beacon_cmd_v6 beacon_cmd = {}; 101209856582SLuca Coelho 101309856582SLuca Coelho iwl_mvm_mac_ctxt_set_tx(mvm, vif, beacon, &beacon_cmd.tx); 101409856582SLuca Coelho 101509856582SLuca Coelho beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); 101609856582SLuca Coelho 101709856582SLuca Coelho if (vif->type == NL80211_IFTYPE_AP) 101809856582SLuca Coelho iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, 101909856582SLuca Coelho &beacon_cmd.tim_size, 102009856582SLuca Coelho beacon->data, beacon->len); 102109856582SLuca Coelho 102209856582SLuca Coelho return iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, 102309856582SLuca Coelho sizeof(beacon_cmd)); 102409856582SLuca Coelho } 102509856582SLuca Coelho 102609856582SLuca Coelho static int iwl_mvm_mac_ctxt_send_beacon_v7(struct iwl_mvm *mvm, 102709856582SLuca Coelho struct ieee80211_vif *vif, 102809856582SLuca Coelho struct sk_buff *beacon) 102909856582SLuca Coelho { 103009856582SLuca Coelho struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 103109856582SLuca Coelho struct iwl_mac_beacon_cmd_v7 beacon_cmd = {}; 103209856582SLuca Coelho 103309856582SLuca Coelho iwl_mvm_mac_ctxt_set_tx(mvm, vif, beacon, &beacon_cmd.tx); 103409856582SLuca Coelho 103509856582SLuca Coelho beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); 103609856582SLuca Coelho 103709856582SLuca Coelho if (vif->type == NL80211_IFTYPE_AP) 103809856582SLuca Coelho iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, 103909856582SLuca Coelho &beacon_cmd.tim_size, 104009856582SLuca Coelho beacon->data, beacon->len); 104109856582SLuca Coelho 104209856582SLuca Coelho beacon_cmd.csa_offset = 104309856582SLuca Coelho cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, 104409856582SLuca Coelho WLAN_EID_CHANNEL_SWITCH, 104509856582SLuca Coelho beacon->len)); 104609856582SLuca Coelho beacon_cmd.ecsa_offset = 104709856582SLuca Coelho cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, 104809856582SLuca Coelho WLAN_EID_EXT_CHANSWITCH_ANN, 104909856582SLuca Coelho beacon->len)); 105009856582SLuca Coelho 105109856582SLuca Coelho return iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, 105209856582SLuca Coelho sizeof(beacon_cmd)); 105309856582SLuca Coelho } 105409856582SLuca Coelho 10556ca33f8bSHaim Dreyfuss static int iwl_mvm_mac_ctxt_send_beacon_v9(struct iwl_mvm *mvm, 105609856582SLuca Coelho struct ieee80211_vif *vif, 105709856582SLuca Coelho struct sk_buff *beacon) 105809856582SLuca Coelho { 105909856582SLuca Coelho struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 10606ca33f8bSHaim Dreyfuss struct ieee80211_tx_info *info = IEEE80211_SKB_CB(beacon); 106109856582SLuca Coelho struct iwl_mac_beacon_cmd beacon_cmd = {}; 10626ca33f8bSHaim Dreyfuss u8 rate = iwl_mvm_mac_ctxt_get_lowest_rate(info, vif); 10636ca33f8bSHaim Dreyfuss u16 flags; 106409856582SLuca Coelho 10656ca33f8bSHaim Dreyfuss flags = iwl_mvm_mac80211_idx_to_hwrate(rate); 10666ca33f8bSHaim Dreyfuss 10676ca33f8bSHaim Dreyfuss if (rate == IWL_FIRST_CCK_RATE) 10686ca33f8bSHaim Dreyfuss flags |= IWL_MAC_BEACON_CCK; 10696ca33f8bSHaim Dreyfuss 10706ca33f8bSHaim Dreyfuss beacon_cmd.flags = cpu_to_le16(flags); 107109856582SLuca Coelho beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len); 107209856582SLuca Coelho beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); 107309856582SLuca Coelho 107409856582SLuca Coelho if (vif->type == NL80211_IFTYPE_AP) 10756ca33f8bSHaim Dreyfuss iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, 107609856582SLuca Coelho &beacon_cmd.tim_size, 107709856582SLuca Coelho beacon->data, beacon->len); 107809856582SLuca Coelho 107909856582SLuca Coelho beacon_cmd.csa_offset = 108009856582SLuca Coelho cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, 108109856582SLuca Coelho WLAN_EID_CHANNEL_SWITCH, 108209856582SLuca Coelho beacon->len)); 108309856582SLuca Coelho beacon_cmd.ecsa_offset = 108409856582SLuca Coelho cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, 108509856582SLuca Coelho WLAN_EID_EXT_CHANSWITCH_ANN, 108609856582SLuca Coelho beacon->len)); 108709856582SLuca Coelho 108809856582SLuca Coelho return iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, 108909856582SLuca Coelho sizeof(beacon_cmd)); 109009856582SLuca Coelho } 109109856582SLuca Coelho 109209856582SLuca Coelho static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm, 109309856582SLuca Coelho struct ieee80211_vif *vif, 109409856582SLuca Coelho struct sk_buff *beacon) 109509856582SLuca Coelho { 109609856582SLuca Coelho if (WARN_ON(!beacon)) 109709856582SLuca Coelho return -EINVAL; 109809856582SLuca Coelho 109909856582SLuca Coelho if (!fw_has_capa(&mvm->fw->ucode_capa, 110009856582SLuca Coelho IWL_UCODE_TLV_CAPA_CSA_AND_TBTT_OFFLOAD)) 110109856582SLuca Coelho return iwl_mvm_mac_ctxt_send_beacon_v6(mvm, vif, beacon); 110209856582SLuca Coelho 11036ca33f8bSHaim Dreyfuss if (fw_has_api(&mvm->fw->ucode_capa, 11046ca33f8bSHaim Dreyfuss IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE)) 11056ca33f8bSHaim Dreyfuss return iwl_mvm_mac_ctxt_send_beacon_v9(mvm, vif, beacon); 110609856582SLuca Coelho 11076ca33f8bSHaim Dreyfuss return iwl_mvm_mac_ctxt_send_beacon_v7(mvm, vif, beacon); 110809856582SLuca Coelho } 110909856582SLuca Coelho 1110e705c121SKalle Valo /* The beacon template for the AP/GO/IBSS has changed and needs update */ 1111e705c121SKalle Valo int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm, 1112e705c121SKalle Valo struct ieee80211_vif *vif) 1113e705c121SKalle Valo { 1114e705c121SKalle Valo struct sk_buff *beacon; 1115e705c121SKalle Valo int ret; 1116e705c121SKalle Valo 1117e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_AP && 1118e705c121SKalle Valo vif->type != NL80211_IFTYPE_ADHOC); 1119e705c121SKalle Valo 1120e705c121SKalle Valo beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL); 1121e705c121SKalle Valo if (!beacon) 1122e705c121SKalle Valo return -ENOMEM; 1123e705c121SKalle Valo 1124e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_send_beacon(mvm, vif, beacon); 1125e705c121SKalle Valo dev_kfree_skb(beacon); 1126e705c121SKalle Valo return ret; 1127e705c121SKalle Valo } 1128e705c121SKalle Valo 1129e705c121SKalle Valo struct iwl_mvm_mac_ap_iterator_data { 1130e705c121SKalle Valo struct iwl_mvm *mvm; 1131e705c121SKalle Valo struct ieee80211_vif *vif; 1132e705c121SKalle Valo u32 beacon_device_ts; 1133e705c121SKalle Valo u16 beacon_int; 1134e705c121SKalle Valo }; 1135e705c121SKalle Valo 1136e705c121SKalle Valo /* Find the beacon_device_ts and beacon_int for a managed interface */ 1137e705c121SKalle Valo static void iwl_mvm_mac_ap_iterator(void *_data, u8 *mac, 1138e705c121SKalle Valo struct ieee80211_vif *vif) 1139e705c121SKalle Valo { 1140e705c121SKalle Valo struct iwl_mvm_mac_ap_iterator_data *data = _data; 1141e705c121SKalle Valo 1142e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc) 1143e705c121SKalle Valo return; 1144e705c121SKalle Valo 1145e705c121SKalle Valo /* Station client has higher priority over P2P client*/ 1146e705c121SKalle Valo if (vif->p2p && data->beacon_device_ts) 1147e705c121SKalle Valo return; 1148e705c121SKalle Valo 1149e705c121SKalle Valo data->beacon_device_ts = vif->bss_conf.sync_device_ts; 1150e705c121SKalle Valo data->beacon_int = vif->bss_conf.beacon_int; 1151e705c121SKalle Valo } 1152e705c121SKalle Valo 1153e705c121SKalle Valo /* 1154e705c121SKalle Valo * Fill the specific data for mac context of type AP of P2P GO 1155e705c121SKalle Valo */ 1156e705c121SKalle Valo static void iwl_mvm_mac_ctxt_cmd_fill_ap(struct iwl_mvm *mvm, 1157e705c121SKalle Valo struct ieee80211_vif *vif, 1158186cd49aSJohannes Berg struct iwl_mac_ctx_cmd *cmd, 1159e705c121SKalle Valo struct iwl_mac_data_ap *ctxt_ap, 1160e705c121SKalle Valo bool add) 1161e705c121SKalle Valo { 1162e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1163e705c121SKalle Valo struct iwl_mvm_mac_ap_iterator_data data = { 1164e705c121SKalle Valo .mvm = mvm, 1165e705c121SKalle Valo .vif = vif, 1166e705c121SKalle Valo .beacon_device_ts = 0 1167e705c121SKalle Valo }; 1168e705c121SKalle Valo 1169186cd49aSJohannes Berg /* in AP mode, the MCAST FIFO takes the EDCA params from VO */ 1170186cd49aSJohannes Berg cmd->ac[IWL_MVM_TX_FIFO_VO].fifos_mask |= BIT(IWL_MVM_TX_FIFO_MCAST); 1171186cd49aSJohannes Berg 1172186cd49aSJohannes Berg /* 1173186cd49aSJohannes Berg * in AP mode, pass probe requests and beacons from other APs 1174186cd49aSJohannes Berg * (needed for ht protection); when there're no any associated 1175186cd49aSJohannes Berg * station don't ask FW to pass beacons to prevent unnecessary 1176186cd49aSJohannes Berg * wake-ups. 1177186cd49aSJohannes Berg */ 1178186cd49aSJohannes Berg cmd->filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); 1179186cd49aSJohannes Berg if (mvmvif->ap_assoc_sta_count || !mvm->drop_bcn_ap_mode) { 1180186cd49aSJohannes Berg cmd->filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); 1181186cd49aSJohannes Berg IWL_DEBUG_HC(mvm, "Asking FW to pass beacons\n"); 1182186cd49aSJohannes Berg } else { 1183186cd49aSJohannes Berg IWL_DEBUG_HC(mvm, "No need to receive beacons\n"); 1184186cd49aSJohannes Berg } 1185186cd49aSJohannes Berg 1186e705c121SKalle Valo ctxt_ap->bi = cpu_to_le32(vif->bss_conf.beacon_int); 1187e705c121SKalle Valo ctxt_ap->bi_reciprocal = 1188e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int)); 1189e705c121SKalle Valo ctxt_ap->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int * 1190e705c121SKalle Valo vif->bss_conf.dtim_period); 1191e705c121SKalle Valo ctxt_ap->dtim_reciprocal = 1192e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int * 1193e705c121SKalle Valo vif->bss_conf.dtim_period)); 1194e705c121SKalle Valo 1195ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, 1196ced19f26SSara Sharon IWL_UCODE_TLV_API_STA_TYPE)) 1197e705c121SKalle Valo ctxt_ap->mcast_qid = cpu_to_le32(vif->cab_queue); 1198e705c121SKalle Valo 1199e705c121SKalle Valo /* 1200e705c121SKalle Valo * Only set the beacon time when the MAC is being added, when we 1201e705c121SKalle Valo * just modify the MAC then we should keep the time -- the firmware 1202e705c121SKalle Valo * can otherwise have a "jumping" TBTT. 1203e705c121SKalle Valo */ 1204e705c121SKalle Valo if (add) { 1205e705c121SKalle Valo /* 1206e705c121SKalle Valo * If there is a station/P2P client interface which is 1207e705c121SKalle Valo * associated, set the AP's TBTT far enough from the station's 1208e705c121SKalle Valo * TBTT. Otherwise, set it to the current system time 1209e705c121SKalle Valo */ 1210e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 1211e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 1212e705c121SKalle Valo iwl_mvm_mac_ap_iterator, &data); 1213e705c121SKalle Valo 1214e705c121SKalle Valo if (data.beacon_device_ts) { 1215e705c121SKalle Valo u32 rand = (prandom_u32() % (64 - 36)) + 36; 1216e705c121SKalle Valo mvmvif->ap_beacon_time = data.beacon_device_ts + 1217e705c121SKalle Valo ieee80211_tu_to_usec(data.beacon_int * rand / 1218e705c121SKalle Valo 100); 1219e705c121SKalle Valo } else { 1220e705c121SKalle Valo mvmvif->ap_beacon_time = 1221e705c121SKalle Valo iwl_read_prph(mvm->trans, 1222e705c121SKalle Valo DEVICE_SYSTEM_TIME_REG); 1223e705c121SKalle Valo } 1224e705c121SKalle Valo } 1225e705c121SKalle Valo 1226e705c121SKalle Valo ctxt_ap->beacon_time = cpu_to_le32(mvmvif->ap_beacon_time); 1227e705c121SKalle Valo ctxt_ap->beacon_tsf = 0; /* unused */ 1228e705c121SKalle Valo 1229e705c121SKalle Valo /* TODO: Assume that the beacon id == mac context id */ 1230e705c121SKalle Valo ctxt_ap->beacon_template = cpu_to_le32(mvmvif->id); 1231e705c121SKalle Valo } 1232e705c121SKalle Valo 1233e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_ap(struct iwl_mvm *mvm, 1234e705c121SKalle Valo struct ieee80211_vif *vif, 1235e705c121SKalle Valo u32 action) 1236e705c121SKalle Valo { 1237e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 1238e705c121SKalle Valo 1239e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_AP || vif->p2p); 1240e705c121SKalle Valo 1241e705c121SKalle Valo /* Fill the common data for all mac context types */ 1242e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 1243e705c121SKalle Valo 1244e705c121SKalle Valo /* Fill the data specific for ap mode */ 1245186cd49aSJohannes Berg iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd, &cmd.ap, 1246e705c121SKalle Valo action == FW_CTXT_ACTION_ADD); 1247e705c121SKalle Valo 1248e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 1249e705c121SKalle Valo } 1250e705c121SKalle Valo 1251e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_go(struct iwl_mvm *mvm, 1252e705c121SKalle Valo struct ieee80211_vif *vif, 1253e705c121SKalle Valo u32 action) 1254e705c121SKalle Valo { 1255e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 1256e705c121SKalle Valo struct ieee80211_p2p_noa_attr *noa = &vif->bss_conf.p2p_noa_attr; 1257e705c121SKalle Valo 1258e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_AP || !vif->p2p); 1259e705c121SKalle Valo 1260e705c121SKalle Valo /* Fill the common data for all mac context types */ 1261e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 1262e705c121SKalle Valo 1263e705c121SKalle Valo /* Fill the data specific for GO mode */ 1264186cd49aSJohannes Berg iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd, &cmd.go.ap, 1265e705c121SKalle Valo action == FW_CTXT_ACTION_ADD); 1266e705c121SKalle Valo 1267e705c121SKalle Valo cmd.go.ctwin = cpu_to_le32(noa->oppps_ctwindow & 1268e705c121SKalle Valo IEEE80211_P2P_OPPPS_CTWINDOW_MASK); 1269e705c121SKalle Valo cmd.go.opp_ps_enabled = 1270e705c121SKalle Valo cpu_to_le32(!!(noa->oppps_ctwindow & 1271e705c121SKalle Valo IEEE80211_P2P_OPPPS_ENABLE_BIT)); 1272e705c121SKalle Valo 1273e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 1274e705c121SKalle Valo } 1275e705c121SKalle Valo 1276e705c121SKalle Valo static int iwl_mvm_mac_ctx_send(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1277e705c121SKalle Valo u32 action, bool force_assoc_off, 1278e705c121SKalle Valo const u8 *bssid_override) 1279e705c121SKalle Valo { 1280e705c121SKalle Valo switch (vif->type) { 1281e705c121SKalle Valo case NL80211_IFTYPE_STATION: 1282e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_sta(mvm, vif, action, 1283e705c121SKalle Valo force_assoc_off, 1284e705c121SKalle Valo bssid_override); 1285e705c121SKalle Valo break; 1286e705c121SKalle Valo case NL80211_IFTYPE_AP: 1287e705c121SKalle Valo if (!vif->p2p) 1288e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_ap(mvm, vif, action); 1289e705c121SKalle Valo else 1290e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_go(mvm, vif, action); 1291e705c121SKalle Valo break; 1292e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 1293e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_listener(mvm, vif, action); 1294e705c121SKalle Valo case NL80211_IFTYPE_P2P_DEVICE: 1295e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_p2p_device(mvm, vif, action); 1296e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 1297e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_ibss(mvm, vif, action); 1298e705c121SKalle Valo default: 1299e705c121SKalle Valo break; 1300e705c121SKalle Valo } 1301e705c121SKalle Valo 1302e705c121SKalle Valo return -EOPNOTSUPP; 1303e705c121SKalle Valo } 1304e705c121SKalle Valo 1305e705c121SKalle Valo int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1306e705c121SKalle Valo { 1307e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1308e705c121SKalle Valo int ret; 1309e705c121SKalle Valo 1310e705c121SKalle Valo if (WARN_ONCE(mvmvif->uploaded, "Adding active MAC %pM/%d\n", 1311e705c121SKalle Valo vif->addr, ieee80211_vif_type_p2p(vif))) 1312e705c121SKalle Valo return -EIO; 1313e705c121SKalle Valo 1314e705c121SKalle Valo ret = iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_ADD, 1315e705c121SKalle Valo true, NULL); 1316e705c121SKalle Valo if (ret) 1317e705c121SKalle Valo return ret; 1318e705c121SKalle Valo 1319e705c121SKalle Valo /* will only do anything at resume from D3 time */ 1320e705c121SKalle Valo iwl_mvm_set_last_nonqos_seq(mvm, vif); 1321e705c121SKalle Valo 1322e705c121SKalle Valo mvmvif->uploaded = true; 1323e705c121SKalle Valo return 0; 1324e705c121SKalle Valo } 1325e705c121SKalle Valo 1326e705c121SKalle Valo int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1327e705c121SKalle Valo bool force_assoc_off, const u8 *bssid_override) 1328e705c121SKalle Valo { 1329e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1330e705c121SKalle Valo 1331e705c121SKalle Valo if (WARN_ONCE(!mvmvif->uploaded, "Changing inactive MAC %pM/%d\n", 1332e705c121SKalle Valo vif->addr, ieee80211_vif_type_p2p(vif))) 1333e705c121SKalle Valo return -EIO; 1334e705c121SKalle Valo 1335e705c121SKalle Valo return iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_MODIFY, 1336e705c121SKalle Valo force_assoc_off, bssid_override); 1337e705c121SKalle Valo } 1338e705c121SKalle Valo 1339e705c121SKalle Valo int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1340e705c121SKalle Valo { 1341e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1342e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd; 1343e705c121SKalle Valo int ret; 1344e705c121SKalle Valo 1345e705c121SKalle Valo if (WARN_ONCE(!mvmvif->uploaded, "Removing inactive MAC %pM/%d\n", 1346e705c121SKalle Valo vif->addr, ieee80211_vif_type_p2p(vif))) 1347e705c121SKalle Valo return -EIO; 1348e705c121SKalle Valo 1349e705c121SKalle Valo memset(&cmd, 0, sizeof(cmd)); 1350e705c121SKalle Valo 1351e705c121SKalle Valo cmd.id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1352e705c121SKalle Valo mvmvif->color)); 1353e705c121SKalle Valo cmd.action = cpu_to_le32(FW_CTXT_ACTION_REMOVE); 1354e705c121SKalle Valo 1355e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, 0, 1356e705c121SKalle Valo sizeof(cmd), &cmd); 1357e705c121SKalle Valo if (ret) { 1358e705c121SKalle Valo IWL_ERR(mvm, "Failed to remove MAC context: %d\n", ret); 1359e705c121SKalle Valo return ret; 1360e705c121SKalle Valo } 1361e705c121SKalle Valo 1362e705c121SKalle Valo mvmvif->uploaded = false; 1363e705c121SKalle Valo 13640e39eb03SChaya Rachel Ivgi if (vif->type == NL80211_IFTYPE_MONITOR) { 1365e705c121SKalle Valo __clear_bit(IEEE80211_HW_RX_INCLUDES_FCS, mvm->hw->flags); 13660e39eb03SChaya Rachel Ivgi iwl_mvm_dealloc_snif_sta(mvm); 13670e39eb03SChaya Rachel Ivgi } 1368e705c121SKalle Valo 1369e705c121SKalle Valo return 0; 1370e705c121SKalle Valo } 1371e705c121SKalle Valo 1372e705c121SKalle Valo static void iwl_mvm_csa_count_down(struct iwl_mvm *mvm, 1373e705c121SKalle Valo struct ieee80211_vif *csa_vif, u32 gp2, 1374e705c121SKalle Valo bool tx_success) 1375e705c121SKalle Valo { 1376e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = 1377e705c121SKalle Valo iwl_mvm_vif_from_mac80211(csa_vif); 1378e705c121SKalle Valo 1379e705c121SKalle Valo /* Don't start to countdown from a failed beacon */ 1380e705c121SKalle Valo if (!tx_success && !mvmvif->csa_countdown) 1381e705c121SKalle Valo return; 1382e705c121SKalle Valo 1383e705c121SKalle Valo mvmvif->csa_countdown = true; 1384e705c121SKalle Valo 1385e705c121SKalle Valo if (!ieee80211_csa_is_complete(csa_vif)) { 1386e705c121SKalle Valo int c = ieee80211_csa_update_counter(csa_vif); 1387e705c121SKalle Valo 1388e705c121SKalle Valo iwl_mvm_mac_ctxt_beacon_changed(mvm, csa_vif); 1389e705c121SKalle Valo if (csa_vif->p2p && 1390e705c121SKalle Valo !iwl_mvm_te_scheduled(&mvmvif->time_event_data) && gp2 && 1391e705c121SKalle Valo tx_success) { 1392e705c121SKalle Valo u32 rel_time = (c + 1) * 1393e705c121SKalle Valo csa_vif->bss_conf.beacon_int - 1394e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_TIME_GO; 1395e705c121SKalle Valo u32 apply_time = gp2 + rel_time * 1024; 1396e705c121SKalle Valo 1397e705c121SKalle Valo iwl_mvm_schedule_csa_period(mvm, csa_vif, 1398e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_TIME_GO - 1399e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_MARGIN, 1400e705c121SKalle Valo apply_time); 1401e705c121SKalle Valo } 1402e705c121SKalle Valo } else if (!iwl_mvm_te_scheduled(&mvmvif->time_event_data)) { 1403e705c121SKalle Valo /* we don't have CSA NoA scheduled yet, switch now */ 1404e705c121SKalle Valo ieee80211_csa_finish(csa_vif); 1405e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_vif, NULL); 1406e705c121SKalle Valo } 1407e705c121SKalle Valo } 1408e705c121SKalle Valo 1409e705c121SKalle Valo void iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm, 1410e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 1411e705c121SKalle Valo { 1412e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 1413e705c121SKalle Valo struct iwl_extended_beacon_notif *beacon = (void *)pkt->data; 1414e705c121SKalle Valo struct iwl_mvm_tx_resp *beacon_notify_hdr; 1415e705c121SKalle Valo struct ieee80211_vif *csa_vif; 1416e705c121SKalle Valo struct ieee80211_vif *tx_blocked_vif; 141712db294cSSara Sharon struct agg_tx_status *agg_status; 1418e705c121SKalle Valo u16 status; 1419e705c121SKalle Valo 1420e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1421e705c121SKalle Valo 1422e705c121SKalle Valo beacon_notify_hdr = &beacon->beacon_notify_hdr; 1423e705c121SKalle Valo mvm->ap_last_beacon_gp2 = le32_to_cpu(beacon->gp2); 14242f0282dbSJohannes Berg mvm->ibss_manager = beacon->ibss_mgr_status != 0; 1425e705c121SKalle Valo 142612db294cSSara Sharon agg_status = iwl_mvm_get_agg_status(mvm, beacon_notify_hdr); 142712db294cSSara Sharon status = le16_to_cpu(agg_status->status) & TX_STATUS_MSK; 1428e705c121SKalle Valo IWL_DEBUG_RX(mvm, 1429e705c121SKalle Valo "beacon status %#x retries:%d tsf:0x%16llX gp2:0x%X rate:%d\n", 1430e705c121SKalle Valo status, beacon_notify_hdr->failure_frame, 1431e705c121SKalle Valo le64_to_cpu(beacon->tsf), 1432e705c121SKalle Valo mvm->ap_last_beacon_gp2, 1433e705c121SKalle Valo le32_to_cpu(beacon_notify_hdr->initial_rate)); 1434e705c121SKalle Valo 1435e705c121SKalle Valo csa_vif = rcu_dereference_protected(mvm->csa_vif, 1436e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1437e705c121SKalle Valo if (unlikely(csa_vif && csa_vif->csa_active)) 1438e705c121SKalle Valo iwl_mvm_csa_count_down(mvm, csa_vif, mvm->ap_last_beacon_gp2, 1439e705c121SKalle Valo (status == TX_STATUS_SUCCESS)); 1440e705c121SKalle Valo 1441e705c121SKalle Valo tx_blocked_vif = rcu_dereference_protected(mvm->csa_tx_blocked_vif, 1442e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1443e705c121SKalle Valo if (unlikely(tx_blocked_vif)) { 1444e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = 1445e705c121SKalle Valo iwl_mvm_vif_from_mac80211(tx_blocked_vif); 1446e705c121SKalle Valo 1447e705c121SKalle Valo /* 1448e705c121SKalle Valo * The channel switch is started and we have blocked the 1449e705c121SKalle Valo * stations. If this is the first beacon (the timeout wasn't 1450e705c121SKalle Valo * set), set the unblock timeout, otherwise countdown 1451e705c121SKalle Valo */ 1452e705c121SKalle Valo if (!mvm->csa_tx_block_bcn_timeout) 1453e705c121SKalle Valo mvm->csa_tx_block_bcn_timeout = 1454e705c121SKalle Valo IWL_MVM_CS_UNBLOCK_TX_TIMEOUT; 1455e705c121SKalle Valo else 1456e705c121SKalle Valo mvm->csa_tx_block_bcn_timeout--; 1457e705c121SKalle Valo 1458e705c121SKalle Valo /* Check if the timeout is expired, and unblock tx */ 1459e705c121SKalle Valo if (mvm->csa_tx_block_bcn_timeout == 0) { 1460e705c121SKalle Valo iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 1461e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 1462e705c121SKalle Valo } 1463e705c121SKalle Valo } 1464e705c121SKalle Valo } 1465e705c121SKalle Valo 1466e705c121SKalle Valo static void iwl_mvm_beacon_loss_iterator(void *_data, u8 *mac, 1467e705c121SKalle Valo struct ieee80211_vif *vif) 1468e705c121SKalle Valo { 1469e705c121SKalle Valo struct iwl_missed_beacons_notif *missed_beacons = _data; 1470e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1471e705c121SKalle Valo struct iwl_mvm *mvm = mvmvif->mvm; 1472e705c121SKalle Valo struct iwl_fw_dbg_trigger_missed_bcon *bcon_trig; 1473e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trigger; 1474e705c121SKalle Valo u32 stop_trig_missed_bcon, stop_trig_missed_bcon_since_rx; 1475e705c121SKalle Valo u32 rx_missed_bcon, rx_missed_bcon_since_rx; 1476e705c121SKalle Valo 1477e705c121SKalle Valo if (mvmvif->id != (u16)le32_to_cpu(missed_beacons->mac_id)) 1478e705c121SKalle Valo return; 1479e705c121SKalle Valo 1480e705c121SKalle Valo rx_missed_bcon = le32_to_cpu(missed_beacons->consec_missed_beacons); 1481e705c121SKalle Valo rx_missed_bcon_since_rx = 1482e705c121SKalle Valo le32_to_cpu(missed_beacons->consec_missed_beacons_since_last_rx); 1483e705c121SKalle Valo /* 1484e705c121SKalle Valo * TODO: the threshold should be adjusted based on latency conditions, 1485e705c121SKalle Valo * and/or in case of a CS flow on one of the other AP vifs. 1486e705c121SKalle Valo */ 1487e705c121SKalle Valo if (le32_to_cpu(missed_beacons->consec_missed_beacons_since_last_rx) > 1488e705c121SKalle Valo IWL_MVM_MISSED_BEACONS_THRESHOLD) 1489e705c121SKalle Valo ieee80211_beacon_loss(vif); 1490e705c121SKalle Valo 1491e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, 1492e705c121SKalle Valo FW_DBG_TRIGGER_MISSED_BEACONS)) 1493e705c121SKalle Valo return; 1494e705c121SKalle Valo 1495e705c121SKalle Valo trigger = iwl_fw_dbg_get_trigger(mvm->fw, 1496e705c121SKalle Valo FW_DBG_TRIGGER_MISSED_BEACONS); 1497e705c121SKalle Valo bcon_trig = (void *)trigger->data; 1498e705c121SKalle Valo stop_trig_missed_bcon = le32_to_cpu(bcon_trig->stop_consec_missed_bcon); 1499e705c121SKalle Valo stop_trig_missed_bcon_since_rx = 1500e705c121SKalle Valo le32_to_cpu(bcon_trig->stop_consec_missed_bcon_since_rx); 1501e705c121SKalle Valo 1502e705c121SKalle Valo /* TODO: implement start trigger */ 1503e705c121SKalle Valo 15047174beb6SJohannes Berg if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt, 15057174beb6SJohannes Berg ieee80211_vif_to_wdev(vif), 15067174beb6SJohannes Berg trigger)) 1507e705c121SKalle Valo return; 1508e705c121SKalle Valo 1509e705c121SKalle Valo if (rx_missed_bcon_since_rx >= stop_trig_missed_bcon_since_rx || 1510e705c121SKalle Valo rx_missed_bcon >= stop_trig_missed_bcon) 15117174beb6SJohannes Berg iwl_fw_dbg_collect_trig(&mvm->fwrt, trigger, NULL); 1512e705c121SKalle Valo } 1513e705c121SKalle Valo 1514e705c121SKalle Valo void iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm *mvm, 1515e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 1516e705c121SKalle Valo { 1517e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 1518e705c121SKalle Valo struct iwl_missed_beacons_notif *mb = (void *)pkt->data; 1519e705c121SKalle Valo 1520e705c121SKalle Valo IWL_DEBUG_INFO(mvm, 1521e705c121SKalle Valo "missed bcn mac_id=%u, consecutive=%u (%u, %u, %u)\n", 1522e705c121SKalle Valo le32_to_cpu(mb->mac_id), 1523e705c121SKalle Valo le32_to_cpu(mb->consec_missed_beacons), 1524e705c121SKalle Valo le32_to_cpu(mb->consec_missed_beacons_since_last_rx), 1525e705c121SKalle Valo le32_to_cpu(mb->num_recvd_beacons), 1526e705c121SKalle Valo le32_to_cpu(mb->num_expected_beacons)); 1527e705c121SKalle Valo 1528e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic(mvm->hw, 1529e705c121SKalle Valo IEEE80211_IFACE_ITER_NORMAL, 1530e705c121SKalle Valo iwl_mvm_beacon_loss_iterator, 1531e705c121SKalle Valo mb); 1532e705c121SKalle Valo } 15330db056d3SSara Sharon 15340db056d3SSara Sharon void iwl_mvm_rx_stored_beacon_notif(struct iwl_mvm *mvm, 15350db056d3SSara Sharon struct iwl_rx_cmd_buffer *rxb) 15360db056d3SSara Sharon { 15370db056d3SSara Sharon struct iwl_rx_packet *pkt = rxb_addr(rxb); 15380db056d3SSara Sharon struct iwl_stored_beacon_notif *sb = (void *)pkt->data; 15390db056d3SSara Sharon struct ieee80211_rx_status rx_status; 15400db056d3SSara Sharon struct sk_buff *skb; 15410db056d3SSara Sharon u32 size = le32_to_cpu(sb->byte_count); 15420db056d3SSara Sharon 15430db056d3SSara Sharon if (size == 0) 15440db056d3SSara Sharon return; 15450db056d3SSara Sharon 15460db056d3SSara Sharon skb = alloc_skb(size, GFP_ATOMIC); 15470db056d3SSara Sharon if (!skb) { 15480db056d3SSara Sharon IWL_ERR(mvm, "alloc_skb failed\n"); 15490db056d3SSara Sharon return; 15500db056d3SSara Sharon } 15510db056d3SSara Sharon 15520db056d3SSara Sharon /* update rx_status according to the notification's metadata */ 15530db056d3SSara Sharon memset(&rx_status, 0, sizeof(rx_status)); 15540db056d3SSara Sharon rx_status.mactime = le64_to_cpu(sb->tsf); 155577fe7395SSara Sharon /* TSF as indicated by the firmware is at INA time */ 155677fe7395SSara Sharon rx_status.flag |= RX_FLAG_MACTIME_PLCP_START; 15570db056d3SSara Sharon rx_status.device_timestamp = le32_to_cpu(sb->system_time); 15580db056d3SSara Sharon rx_status.band = 155934118c25SSara Sharon (sb->band & cpu_to_le16(RX_RES_PHY_FLAGS_BAND_24)) ? 156057fbcce3SJohannes Berg NL80211_BAND_2GHZ : NL80211_BAND_5GHZ; 15610db056d3SSara Sharon rx_status.freq = 15620db056d3SSara Sharon ieee80211_channel_to_frequency(le16_to_cpu(sb->channel), 15630db056d3SSara Sharon rx_status.band); 15640db056d3SSara Sharon 15650db056d3SSara Sharon /* copy the data */ 156659ae1d12SJohannes Berg skb_put_data(skb, sb->data, size); 15670db056d3SSara Sharon memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); 15680db056d3SSara Sharon 15690db056d3SSara Sharon /* pass it as regular rx to mac80211 */ 1570d63b548fSJohannes Berg ieee80211_rx_napi(mvm->hw, NULL, skb, NULL); 15710db056d3SSara Sharon } 1572d3a108a4SAndrei Otcheretianski 157386e177d8SGregory Greenman static void iwl_mvm_probe_resp_data_iter(void *_data, u8 *mac, 157486e177d8SGregory Greenman struct ieee80211_vif *vif) 157586e177d8SGregory Greenman { 157686e177d8SGregory Greenman struct iwl_probe_resp_data_notif *notif = _data; 157786e177d8SGregory Greenman struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 157886e177d8SGregory Greenman struct iwl_probe_resp_data *old_data, *new_data; 157986e177d8SGregory Greenman 158086e177d8SGregory Greenman if (mvmvif->id != (u16)le32_to_cpu(notif->mac_id)) 158186e177d8SGregory Greenman return; 158286e177d8SGregory Greenman 158386e177d8SGregory Greenman new_data = kzalloc(sizeof(*new_data), GFP_KERNEL); 158486e177d8SGregory Greenman if (!new_data) 158586e177d8SGregory Greenman return; 158686e177d8SGregory Greenman 158786e177d8SGregory Greenman memcpy(&new_data->notif, notif, sizeof(new_data->notif)); 158886e177d8SGregory Greenman 158986e177d8SGregory Greenman /* noa_attr contains 1 reserved byte, need to substruct it */ 159086e177d8SGregory Greenman new_data->noa_len = sizeof(struct ieee80211_vendor_ie) + 159186e177d8SGregory Greenman sizeof(new_data->notif.noa_attr) - 1; 159286e177d8SGregory Greenman 159386e177d8SGregory Greenman /* 159486e177d8SGregory Greenman * If it's a one time NoA, only one descriptor is needed, 159586e177d8SGregory Greenman * adjust the length according to len_low. 159686e177d8SGregory Greenman */ 159786e177d8SGregory Greenman if (new_data->notif.noa_attr.len_low == 159886e177d8SGregory Greenman sizeof(struct ieee80211_p2p_noa_desc) + 2) 159986e177d8SGregory Greenman new_data->noa_len -= sizeof(struct ieee80211_p2p_noa_desc); 160086e177d8SGregory Greenman 160186e177d8SGregory Greenman old_data = rcu_dereference_protected(mvmvif->probe_resp_data, 160286e177d8SGregory Greenman lockdep_is_held(&mvmvif->mvm->mutex)); 160386e177d8SGregory Greenman rcu_assign_pointer(mvmvif->probe_resp_data, new_data); 160486e177d8SGregory Greenman 160586e177d8SGregory Greenman if (old_data) 160686e177d8SGregory Greenman kfree_rcu(old_data, rcu_head); 160786e177d8SGregory Greenman 160886e177d8SGregory Greenman if (notif->csa_counter != IWL_PROBE_RESP_DATA_NO_CSA && 160986e177d8SGregory Greenman notif->csa_counter >= 1) 161086e177d8SGregory Greenman ieee80211_csa_set_counter(vif, notif->csa_counter); 161186e177d8SGregory Greenman } 161286e177d8SGregory Greenman 161386e177d8SGregory Greenman void iwl_mvm_probe_resp_data_notif(struct iwl_mvm *mvm, 161486e177d8SGregory Greenman struct iwl_rx_cmd_buffer *rxb) 161586e177d8SGregory Greenman { 161686e177d8SGregory Greenman struct iwl_rx_packet *pkt = rxb_addr(rxb); 161786e177d8SGregory Greenman struct iwl_probe_resp_data_notif *notif = (void *)pkt->data; 161886e177d8SGregory Greenman int len = iwl_rx_packet_payload_len(pkt); 161986e177d8SGregory Greenman 162086e177d8SGregory Greenman if (WARN_ON_ONCE(len < sizeof(*notif))) 162186e177d8SGregory Greenman return; 162286e177d8SGregory Greenman 162386e177d8SGregory Greenman IWL_DEBUG_INFO(mvm, "Probe response data notif: noa %d, csa %d\n", 162486e177d8SGregory Greenman notif->noa_active, notif->csa_counter); 162586e177d8SGregory Greenman 162686e177d8SGregory Greenman ieee80211_iterate_active_interfaces(mvm->hw, 162786e177d8SGregory Greenman IEEE80211_IFACE_ITER_ACTIVE, 162886e177d8SGregory Greenman iwl_mvm_probe_resp_data_iter, 162986e177d8SGregory Greenman notif); 163086e177d8SGregory Greenman } 163186e177d8SGregory Greenman 1632d3a108a4SAndrei Otcheretianski void iwl_mvm_channel_switch_noa_notif(struct iwl_mvm *mvm, 1633d3a108a4SAndrei Otcheretianski struct iwl_rx_cmd_buffer *rxb) 1634d3a108a4SAndrei Otcheretianski { 1635d3a108a4SAndrei Otcheretianski struct iwl_rx_packet *pkt = rxb_addr(rxb); 1636d3a108a4SAndrei Otcheretianski struct iwl_channel_switch_noa_notif *notif = (void *)pkt->data; 1637d3a108a4SAndrei Otcheretianski struct ieee80211_vif *csa_vif; 1638d3a108a4SAndrei Otcheretianski struct iwl_mvm_vif *mvmvif; 1639d3a108a4SAndrei Otcheretianski int len = iwl_rx_packet_payload_len(pkt); 1640d3a108a4SAndrei Otcheretianski u32 id_n_color; 1641d3a108a4SAndrei Otcheretianski 1642d3a108a4SAndrei Otcheretianski if (WARN_ON_ONCE(len < sizeof(*notif))) 1643d3a108a4SAndrei Otcheretianski return; 1644d3a108a4SAndrei Otcheretianski 1645d3a108a4SAndrei Otcheretianski rcu_read_lock(); 1646d3a108a4SAndrei Otcheretianski 1647d3a108a4SAndrei Otcheretianski csa_vif = rcu_dereference(mvm->csa_vif); 1648d3a108a4SAndrei Otcheretianski if (WARN_ON(!csa_vif || !csa_vif->csa_active)) 1649d3a108a4SAndrei Otcheretianski goto out_unlock; 1650d3a108a4SAndrei Otcheretianski 1651d3a108a4SAndrei Otcheretianski id_n_color = le32_to_cpu(notif->id_and_color); 1652d3a108a4SAndrei Otcheretianski 1653d3a108a4SAndrei Otcheretianski mvmvif = iwl_mvm_vif_from_mac80211(csa_vif); 1654d3a108a4SAndrei Otcheretianski if (WARN(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color) != id_n_color, 1655d3a108a4SAndrei Otcheretianski "channel switch noa notification on unexpected vif (csa_vif=%d, notif=%d)", 1656d3a108a4SAndrei Otcheretianski FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color), id_n_color)) 1657d3a108a4SAndrei Otcheretianski goto out_unlock; 1658d3a108a4SAndrei Otcheretianski 1659d3a108a4SAndrei Otcheretianski IWL_DEBUG_INFO(mvm, "Channel Switch Started Notification\n"); 1660d3a108a4SAndrei Otcheretianski 166186bbb1e1SJohannes Berg schedule_delayed_work(&mvm->cs_tx_unblock_dwork, 1662d3a108a4SAndrei Otcheretianski msecs_to_jiffies(IWL_MVM_CS_UNBLOCK_TX_TIMEOUT * 1663d3a108a4SAndrei Otcheretianski csa_vif->bss_conf.beacon_int)); 1664d3a108a4SAndrei Otcheretianski 1665d3a108a4SAndrei Otcheretianski ieee80211_csa_finish(csa_vif); 1666d3a108a4SAndrei Otcheretianski 1667d3a108a4SAndrei Otcheretianski rcu_read_unlock(); 1668d3a108a4SAndrei Otcheretianski 1669d3a108a4SAndrei Otcheretianski RCU_INIT_POINTER(mvm->csa_vif, NULL); 1670d3a108a4SAndrei Otcheretianski 1671d3a108a4SAndrei Otcheretianski return; 1672d3a108a4SAndrei Otcheretianski 1673d3a108a4SAndrei Otcheretianski out_unlock: 1674d3a108a4SAndrei Otcheretianski rcu_read_unlock(); 1675d3a108a4SAndrei Otcheretianski } 1676