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 100db056d3SSara Sharon * Copyright(c) 2015 - 2016 Intel Deutschland GmbH 11e705c121SKalle Valo * 12e705c121SKalle Valo * This program is free software; you can redistribute it and/or modify 13e705c121SKalle Valo * it under the terms of version 2 of the GNU General Public License as 14e705c121SKalle Valo * published by the Free Software Foundation. 15e705c121SKalle Valo * 16e705c121SKalle Valo * This program is distributed in the hope that it will be useful, but 17e705c121SKalle Valo * WITHOUT ANY WARRANTY; without even the implied warranty of 18e705c121SKalle Valo * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19e705c121SKalle Valo * General Public License for more details. 20e705c121SKalle Valo * 21e705c121SKalle Valo * You should have received a copy of the GNU General Public License 22e705c121SKalle Valo * along with this program; if not, write to the Free Software 23e705c121SKalle Valo * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 24e705c121SKalle Valo * USA 25e705c121SKalle Valo * 26e705c121SKalle Valo * The full GNU General Public License is included in this distribution 27e705c121SKalle Valo * in the file called COPYING. 28e705c121SKalle Valo * 29e705c121SKalle Valo * Contact Information: 30cb2f8277SEmmanuel Grumbach * Intel Linux Wireless <linuxwifi@intel.com> 31e705c121SKalle Valo * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 32e705c121SKalle Valo * 33e705c121SKalle Valo * BSD LICENSE 34e705c121SKalle Valo * 35e705c121SKalle Valo * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 36e705c121SKalle Valo * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH 370db056d3SSara Sharon * Copyright(c) 2015 - 2016 Intel Deutschland GmbH 38e705c121SKalle Valo * All rights reserved. 39e705c121SKalle Valo * 40e705c121SKalle Valo * Redistribution and use in source and binary forms, with or without 41e705c121SKalle Valo * modification, are permitted provided that the following conditions 42e705c121SKalle Valo * are met: 43e705c121SKalle Valo * 44e705c121SKalle Valo * * Redistributions of source code must retain the above copyright 45e705c121SKalle Valo * notice, this list of conditions and the following disclaimer. 46e705c121SKalle Valo * * Redistributions in binary form must reproduce the above copyright 47e705c121SKalle Valo * notice, this list of conditions and the following disclaimer in 48e705c121SKalle Valo * the documentation and/or other materials provided with the 49e705c121SKalle Valo * distribution. 50e705c121SKalle Valo * * Neither the name Intel Corporation nor the names of its 51e705c121SKalle Valo * contributors may be used to endorse or promote products derived 52e705c121SKalle Valo * from this software without specific prior written permission. 53e705c121SKalle Valo * 54e705c121SKalle Valo * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 55e705c121SKalle Valo * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 56e705c121SKalle Valo * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 57e705c121SKalle Valo * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 58e705c121SKalle Valo * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 59e705c121SKalle Valo * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 60e705c121SKalle Valo * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 61e705c121SKalle Valo * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 62e705c121SKalle Valo * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 63e705c121SKalle Valo * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 64e705c121SKalle Valo * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 65e705c121SKalle Valo * 66e705c121SKalle Valo *****************************************************************************/ 67e705c121SKalle Valo 68e705c121SKalle Valo #include <linux/etherdevice.h> 69e705c121SKalle Valo #include <net/mac80211.h> 70e705c121SKalle Valo #include "iwl-io.h" 71e705c121SKalle Valo #include "iwl-prph.h" 72e705c121SKalle Valo #include "fw-api.h" 73e705c121SKalle Valo #include "mvm.h" 74e705c121SKalle Valo #include "time-event.h" 752f89a5d7SGolan Ben-Ami #include "fw-dbg.h" 76e705c121SKalle Valo 77e705c121SKalle Valo const u8 iwl_mvm_ac_to_tx_fifo[] = { 78e705c121SKalle Valo IWL_MVM_TX_FIFO_VO, 79e705c121SKalle Valo IWL_MVM_TX_FIFO_VI, 80e705c121SKalle Valo IWL_MVM_TX_FIFO_BE, 81e705c121SKalle Valo IWL_MVM_TX_FIFO_BK, 82e705c121SKalle Valo }; 83e705c121SKalle Valo 84e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data { 85e705c121SKalle Valo struct iwl_mvm *mvm; 86e705c121SKalle Valo struct ieee80211_vif *vif; 87e705c121SKalle Valo unsigned long available_mac_ids[BITS_TO_LONGS(NUM_MAC_INDEX_DRIVER)]; 88e705c121SKalle Valo unsigned long available_tsf_ids[BITS_TO_LONGS(NUM_TSF_IDS)]; 89e705c121SKalle Valo enum iwl_tsf_id preferred_tsf; 90e705c121SKalle Valo bool found_vif; 91e705c121SKalle Valo }; 92e705c121SKalle Valo 93e705c121SKalle Valo struct iwl_mvm_hw_queues_iface_iterator_data { 94e705c121SKalle Valo struct ieee80211_vif *exclude_vif; 95e705c121SKalle Valo unsigned long used_hw_queues; 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 /* 205e705c121SKalle Valo * Get the mask of the queues used by the vif 206e705c121SKalle Valo */ 207e705c121SKalle Valo u32 iwl_mvm_mac_get_queues_mask(struct ieee80211_vif *vif) 208e705c121SKalle Valo { 209e705c121SKalle Valo u32 qmask = 0, ac; 210e705c121SKalle Valo 211e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 212e705c121SKalle Valo return BIT(IWL_MVM_OFFCHANNEL_QUEUE); 213e705c121SKalle Valo 214e705c121SKalle Valo for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 215e705c121SKalle Valo if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE) 216e705c121SKalle Valo qmask |= BIT(vif->hw_queue[ac]); 217e705c121SKalle Valo } 218e705c121SKalle Valo 219e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP) 220e705c121SKalle Valo qmask |= BIT(vif->cab_queue); 221e705c121SKalle Valo 222e705c121SKalle Valo return qmask; 223e705c121SKalle Valo } 224e705c121SKalle Valo 225e705c121SKalle Valo static void iwl_mvm_iface_hw_queues_iter(void *_data, u8 *mac, 226e705c121SKalle Valo struct ieee80211_vif *vif) 227e705c121SKalle Valo { 228e705c121SKalle Valo struct iwl_mvm_hw_queues_iface_iterator_data *data = _data; 229e705c121SKalle Valo 230e705c121SKalle Valo /* exclude the given vif */ 231e705c121SKalle Valo if (vif == data->exclude_vif) 232e705c121SKalle Valo return; 233e705c121SKalle Valo 234e705c121SKalle Valo data->used_hw_queues |= iwl_mvm_mac_get_queues_mask(vif); 235e705c121SKalle Valo } 236e705c121SKalle Valo 237e705c121SKalle Valo static void iwl_mvm_mac_sta_hw_queues_iter(void *_data, 238e705c121SKalle Valo struct ieee80211_sta *sta) 239e705c121SKalle Valo { 240e705c121SKalle Valo struct iwl_mvm_hw_queues_iface_iterator_data *data = _data; 241e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 242e705c121SKalle Valo 243e705c121SKalle Valo /* Mark the queues used by the sta */ 244e705c121SKalle Valo data->used_hw_queues |= mvmsta->tfd_queue_msk; 245e705c121SKalle Valo } 246e705c121SKalle Valo 247e705c121SKalle Valo unsigned long iwl_mvm_get_used_hw_queues(struct iwl_mvm *mvm, 248e705c121SKalle Valo struct ieee80211_vif *exclude_vif) 249e705c121SKalle Valo { 250e705c121SKalle Valo u8 sta_id; 251e705c121SKalle Valo struct iwl_mvm_hw_queues_iface_iterator_data data = { 252e705c121SKalle Valo .exclude_vif = exclude_vif, 253e705c121SKalle Valo .used_hw_queues = 254e705c121SKalle Valo BIT(IWL_MVM_OFFCHANNEL_QUEUE) | 255097129c9SLiad Kaufman BIT(mvm->aux_queue), 256e705c121SKalle Valo }; 257e705c121SKalle Valo 258097129c9SLiad Kaufman if (iwl_mvm_is_dqa_supported(mvm)) 259097129c9SLiad Kaufman data.used_hw_queues |= BIT(IWL_MVM_DQA_CMD_QUEUE); 260097129c9SLiad Kaufman else 261097129c9SLiad Kaufman data.used_hw_queues |= BIT(IWL_MVM_CMD_QUEUE); 262097129c9SLiad Kaufman 263e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 264e705c121SKalle Valo 265e705c121SKalle Valo /* mark all VIF used hw queues */ 266e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 267e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 268e705c121SKalle Valo iwl_mvm_iface_hw_queues_iter, &data); 269e705c121SKalle Valo 270e705c121SKalle Valo /* don't assign the same hw queues as TDLS stations */ 271e705c121SKalle Valo ieee80211_iterate_stations_atomic(mvm->hw, 272e705c121SKalle Valo iwl_mvm_mac_sta_hw_queues_iter, 273e705c121SKalle Valo &data); 274e705c121SKalle Valo 275e705c121SKalle Valo /* 276e705c121SKalle Valo * Some TDLS stations may be removed but are in the process of being 277e705c121SKalle Valo * drained. Don't touch their queues. 278e705c121SKalle Valo */ 279e705c121SKalle Valo for_each_set_bit(sta_id, mvm->sta_drained, IWL_MVM_STATION_COUNT) 280e705c121SKalle Valo data.used_hw_queues |= mvm->tfd_drained[sta_id]; 281e705c121SKalle Valo 282e705c121SKalle Valo return data.used_hw_queues; 283e705c121SKalle Valo } 284e705c121SKalle Valo 285e705c121SKalle Valo static void iwl_mvm_mac_iface_iterator(void *_data, u8 *mac, 286e705c121SKalle Valo struct ieee80211_vif *vif) 287e705c121SKalle Valo { 288e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data *data = _data; 289e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 290e705c121SKalle Valo 291e705c121SKalle Valo /* Iterator may already find the interface being added -- skip it */ 292e705c121SKalle Valo if (vif == data->vif) { 293e705c121SKalle Valo data->found_vif = true; 294e705c121SKalle Valo return; 295e705c121SKalle Valo } 296e705c121SKalle Valo 297e705c121SKalle Valo /* Mark MAC IDs as used by clearing the available bit, and 298e705c121SKalle Valo * (below) mark TSFs as used if their existing use is not 299e705c121SKalle Valo * compatible with the new interface type. 300e705c121SKalle Valo * No locking or atomic bit operations are needed since the 301e705c121SKalle Valo * data is on the stack of the caller function. 302e705c121SKalle Valo */ 303e705c121SKalle Valo __clear_bit(mvmvif->id, data->available_mac_ids); 304e705c121SKalle Valo 305e705c121SKalle Valo /* find a suitable tsf_id */ 306e705c121SKalle Valo iwl_mvm_mac_tsf_id_iter(_data, mac, vif); 307e705c121SKalle Valo } 308e705c121SKalle Valo 309e705c121SKalle Valo void iwl_mvm_mac_ctxt_recalc_tsf_id(struct iwl_mvm *mvm, 310e705c121SKalle Valo struct ieee80211_vif *vif) 311e705c121SKalle Valo { 312e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 313e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data data = { 314e705c121SKalle Valo .mvm = mvm, 315e705c121SKalle Valo .vif = vif, 316e705c121SKalle Valo .available_tsf_ids = { (1 << NUM_TSF_IDS) - 1 }, 317e705c121SKalle Valo /* no preference yet */ 318e705c121SKalle Valo .preferred_tsf = NUM_TSF_IDS, 319e705c121SKalle Valo }; 320e705c121SKalle Valo 321e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 322e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 323e705c121SKalle Valo iwl_mvm_mac_tsf_id_iter, &data); 324e705c121SKalle Valo 325e705c121SKalle Valo if (data.preferred_tsf != NUM_TSF_IDS) 326e705c121SKalle Valo mvmvif->tsf_id = data.preferred_tsf; 327e705c121SKalle Valo else if (!test_bit(mvmvif->tsf_id, data.available_tsf_ids)) 328e705c121SKalle Valo mvmvif->tsf_id = find_first_bit(data.available_tsf_ids, 329e705c121SKalle Valo NUM_TSF_IDS); 330e705c121SKalle Valo } 331e705c121SKalle Valo 332e705c121SKalle Valo static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm, 333e705c121SKalle Valo struct ieee80211_vif *vif) 334e705c121SKalle Valo { 335e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 336e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data data = { 337e705c121SKalle Valo .mvm = mvm, 338e705c121SKalle Valo .vif = vif, 339e705c121SKalle Valo .available_mac_ids = { (1 << NUM_MAC_INDEX_DRIVER) - 1 }, 340e705c121SKalle Valo .available_tsf_ids = { (1 << NUM_TSF_IDS) - 1 }, 341e705c121SKalle Valo /* no preference yet */ 342e705c121SKalle Valo .preferred_tsf = NUM_TSF_IDS, 343e705c121SKalle Valo .found_vif = false, 344e705c121SKalle Valo }; 345e705c121SKalle Valo u32 ac; 346e705c121SKalle Valo int ret, i; 347e705c121SKalle Valo unsigned long used_hw_queues; 348e705c121SKalle Valo 349e705c121SKalle Valo /* 350e705c121SKalle Valo * Allocate a MAC ID and a TSF for this MAC, along with the queues 351e705c121SKalle Valo * and other resources. 352e705c121SKalle Valo */ 353e705c121SKalle Valo 354e705c121SKalle Valo /* 355e705c121SKalle Valo * Before the iterator, we start with all MAC IDs and TSFs available. 356e705c121SKalle Valo * 357e705c121SKalle Valo * During iteration, all MAC IDs are cleared that are in use by other 358e705c121SKalle Valo * virtual interfaces, and all TSF IDs are cleared that can't be used 359e705c121SKalle Valo * by this new virtual interface because they're used by an interface 360e705c121SKalle Valo * that can't share it with the new one. 361e705c121SKalle Valo * At the same time, we check if there's a preferred TSF in the case 362e705c121SKalle Valo * that we should share it with another interface. 363e705c121SKalle Valo */ 364e705c121SKalle Valo 365e705c121SKalle Valo /* Currently, MAC ID 0 should be used only for the managed/IBSS vif */ 366e705c121SKalle Valo switch (vif->type) { 367e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 368e705c121SKalle Valo break; 369e705c121SKalle Valo case NL80211_IFTYPE_STATION: 370e705c121SKalle Valo if (!vif->p2p) 371e705c121SKalle Valo break; 372e705c121SKalle Valo /* fall through */ 373e705c121SKalle Valo default: 374e705c121SKalle Valo __clear_bit(0, data.available_mac_ids); 375e705c121SKalle Valo } 376e705c121SKalle Valo 377e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 378e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 379e705c121SKalle Valo iwl_mvm_mac_iface_iterator, &data); 380e705c121SKalle Valo 381e705c121SKalle Valo used_hw_queues = iwl_mvm_get_used_hw_queues(mvm, vif); 382e705c121SKalle Valo 383e705c121SKalle Valo /* 384e705c121SKalle Valo * In the case we're getting here during resume, it's similar to 385e705c121SKalle Valo * firmware restart, and with RESUME_ALL the iterator will find 386e705c121SKalle Valo * the vif being added already. 387e705c121SKalle Valo * We don't want to reassign any IDs in either case since doing 388e705c121SKalle Valo * so would probably assign different IDs (as interfaces aren't 389e705c121SKalle Valo * necessarily added in the same order), but the old IDs were 390e705c121SKalle Valo * preserved anyway, so skip ID assignment for both resume and 391e705c121SKalle Valo * recovery. 392e705c121SKalle Valo */ 393e705c121SKalle Valo if (data.found_vif) 394e705c121SKalle Valo return 0; 395e705c121SKalle Valo 396e705c121SKalle Valo /* Therefore, in recovery, we can't get here */ 397e705c121SKalle Valo if (WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))) 398e705c121SKalle Valo return -EBUSY; 399e705c121SKalle Valo 400e705c121SKalle Valo mvmvif->id = find_first_bit(data.available_mac_ids, 401e705c121SKalle Valo NUM_MAC_INDEX_DRIVER); 402e705c121SKalle Valo if (mvmvif->id == NUM_MAC_INDEX_DRIVER) { 403e705c121SKalle Valo IWL_ERR(mvm, "Failed to init MAC context - no free ID!\n"); 404e705c121SKalle Valo ret = -EIO; 405e705c121SKalle Valo goto exit_fail; 406e705c121SKalle Valo } 407e705c121SKalle Valo 408e705c121SKalle Valo if (data.preferred_tsf != NUM_TSF_IDS) 409e705c121SKalle Valo mvmvif->tsf_id = data.preferred_tsf; 410e705c121SKalle Valo else 411e705c121SKalle Valo mvmvif->tsf_id = find_first_bit(data.available_tsf_ids, 412e705c121SKalle Valo NUM_TSF_IDS); 413e705c121SKalle Valo if (mvmvif->tsf_id == NUM_TSF_IDS) { 414e705c121SKalle Valo IWL_ERR(mvm, "Failed to init MAC context - no free TSF!\n"); 415e705c121SKalle Valo ret = -EIO; 416e705c121SKalle Valo goto exit_fail; 417e705c121SKalle Valo } 418e705c121SKalle Valo 419e705c121SKalle Valo mvmvif->color = 0; 420e705c121SKalle Valo 421e705c121SKalle Valo INIT_LIST_HEAD(&mvmvif->time_event_data.list); 422e705c121SKalle Valo mvmvif->time_event_data.id = TE_MAX; 423e705c121SKalle Valo 424e705c121SKalle Valo /* No need to allocate data queues to P2P Device MAC.*/ 425e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 426e705c121SKalle Valo for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 427e705c121SKalle Valo vif->hw_queue[ac] = IEEE80211_INVAL_HW_QUEUE; 428e705c121SKalle Valo 429e705c121SKalle Valo return 0; 430e705c121SKalle Valo } 431e705c121SKalle Valo 43224afba76SLiad Kaufman /* 43324afba76SLiad Kaufman * Find available queues, and allocate them to the ACs. When in 43424afba76SLiad Kaufman * DQA-mode they aren't really used, and this is done only so the 43524afba76SLiad Kaufman * mac80211 ieee80211_check_queues() function won't fail 43624afba76SLiad Kaufman */ 437e705c121SKalle Valo for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 438e705c121SKalle Valo u8 queue = find_first_zero_bit(&used_hw_queues, 439e705c121SKalle Valo mvm->first_agg_queue); 440e705c121SKalle Valo 44124afba76SLiad Kaufman if (!iwl_mvm_is_dqa_supported(mvm) && 44224afba76SLiad Kaufman queue >= mvm->first_agg_queue) { 443e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate queue\n"); 444e705c121SKalle Valo ret = -EIO; 445e705c121SKalle Valo goto exit_fail; 446e705c121SKalle Valo } 447e705c121SKalle Valo 448e705c121SKalle Valo __set_bit(queue, &used_hw_queues); 449e705c121SKalle Valo vif->hw_queue[ac] = queue; 450e705c121SKalle Valo } 451e705c121SKalle Valo 452e705c121SKalle Valo /* Allocate the CAB queue for softAP and GO interfaces */ 453e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP) { 4540e0e4420SLiad Kaufman u8 queue; 4550e0e4420SLiad Kaufman 4560e0e4420SLiad Kaufman if (!iwl_mvm_is_dqa_supported(mvm)) { 4570e0e4420SLiad Kaufman queue = find_first_zero_bit(&used_hw_queues, 458e705c121SKalle Valo mvm->first_agg_queue); 459e705c121SKalle Valo 460e705c121SKalle Valo if (queue >= mvm->first_agg_queue) { 461e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate cab queue\n"); 462e705c121SKalle Valo ret = -EIO; 463e705c121SKalle Valo goto exit_fail; 464e705c121SKalle Valo } 4650e0e4420SLiad Kaufman } else { 4660e0e4420SLiad Kaufman queue = IWL_MVM_DQA_GCAST_QUEUE; 4670e0e4420SLiad Kaufman } 468e705c121SKalle Valo 469e705c121SKalle Valo vif->cab_queue = queue; 470e705c121SKalle Valo } else { 471e705c121SKalle Valo vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 472e705c121SKalle Valo } 473e705c121SKalle Valo 474e705c121SKalle Valo mvmvif->bcast_sta.sta_id = IWL_MVM_STATION_COUNT; 475e705c121SKalle Valo mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; 476e705c121SKalle Valo 477e705c121SKalle Valo for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) 478e705c121SKalle Valo mvmvif->smps_requests[i] = IEEE80211_SMPS_AUTOMATIC; 479e705c121SKalle Valo 480e705c121SKalle Valo return 0; 481e705c121SKalle Valo 482e705c121SKalle Valo exit_fail: 483e705c121SKalle Valo memset(mvmvif, 0, sizeof(struct iwl_mvm_vif)); 484e705c121SKalle Valo memset(vif->hw_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(vif->hw_queue)); 485e705c121SKalle Valo vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 486e705c121SKalle Valo return ret; 487e705c121SKalle Valo } 488e705c121SKalle Valo 489e705c121SKalle Valo int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 490e705c121SKalle Valo { 491e705c121SKalle Valo unsigned int wdg_timeout = 492e705c121SKalle Valo iwl_mvm_get_wd_timeout(mvm, vif, false, false); 493e705c121SKalle Valo u32 ac; 494e705c121SKalle Valo int ret; 495e705c121SKalle Valo 496e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 497e705c121SKalle Valo 498e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_allocate_resources(mvm, vif); 499e705c121SKalle Valo if (ret) 500e705c121SKalle Valo return ret; 501e705c121SKalle Valo 5028236f7dbSSara Sharon /* If DQA is supported - queues will be enabled when needed */ 5038236f7dbSSara Sharon if (iwl_mvm_is_dqa_supported(mvm)) 5048236f7dbSSara Sharon return 0; 5058236f7dbSSara Sharon 506e705c121SKalle Valo switch (vif->type) { 507e705c121SKalle Valo case NL80211_IFTYPE_P2P_DEVICE: 508e705c121SKalle Valo iwl_mvm_enable_ac_txq(mvm, IWL_MVM_OFFCHANNEL_QUEUE, 509e705c121SKalle Valo IWL_MVM_OFFCHANNEL_QUEUE, 5108236f7dbSSara Sharon IWL_MVM_TX_FIFO_VO, 0, wdg_timeout); 511e705c121SKalle Valo break; 512e705c121SKalle Valo case NL80211_IFTYPE_AP: 513e705c121SKalle Valo iwl_mvm_enable_ac_txq(mvm, vif->cab_queue, vif->cab_queue, 514e705c121SKalle Valo IWL_MVM_TX_FIFO_MCAST, 0, wdg_timeout); 515e705c121SKalle Valo /* fall through */ 516e705c121SKalle Valo default: 517e705c121SKalle Valo for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 518e705c121SKalle Valo iwl_mvm_enable_ac_txq(mvm, vif->hw_queue[ac], 519e705c121SKalle Valo vif->hw_queue[ac], 520e705c121SKalle Valo iwl_mvm_ac_to_tx_fifo[ac], 0, 521e705c121SKalle Valo wdg_timeout); 522e705c121SKalle Valo break; 523e705c121SKalle Valo } 524e705c121SKalle Valo 525e705c121SKalle Valo return 0; 526e705c121SKalle Valo } 527e705c121SKalle Valo 528e705c121SKalle Valo void iwl_mvm_mac_ctxt_release(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 529e705c121SKalle Valo { 530e705c121SKalle Valo int ac; 531e705c121SKalle Valo 532e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 533e705c121SKalle Valo 53424afba76SLiad Kaufman /* 53524afba76SLiad Kaufman * If DQA is supported - queues were already disabled, since in 53624afba76SLiad Kaufman * DQA-mode the queues are a property of the STA and not of the 53724afba76SLiad Kaufman * vif, and at this point the STA was already deleted 53824afba76SLiad Kaufman */ 53924afba76SLiad Kaufman if (iwl_mvm_is_dqa_supported(mvm)) 540df88c08dSLiad Kaufman return; 54124afba76SLiad Kaufman 542df88c08dSLiad Kaufman switch (vif->type) { 543df88c08dSLiad Kaufman case NL80211_IFTYPE_P2P_DEVICE: 544df88c08dSLiad Kaufman iwl_mvm_disable_txq(mvm, IWL_MVM_OFFCHANNEL_QUEUE, 545df88c08dSLiad Kaufman IWL_MVM_OFFCHANNEL_QUEUE, 546df88c08dSLiad Kaufman IWL_MAX_TID_COUNT, 0); 547df88c08dSLiad Kaufman 548df88c08dSLiad Kaufman break; 549df88c08dSLiad Kaufman case NL80211_IFTYPE_AP: 550df88c08dSLiad Kaufman iwl_mvm_disable_txq(mvm, vif->cab_queue, vif->cab_queue, 551df88c08dSLiad Kaufman IWL_MAX_TID_COUNT, 0); 552df88c08dSLiad Kaufman /* fall through */ 553df88c08dSLiad Kaufman default: 554e705c121SKalle Valo for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 555e705c121SKalle Valo iwl_mvm_disable_txq(mvm, vif->hw_queue[ac], 556e705c121SKalle Valo vif->hw_queue[ac], 557e705c121SKalle Valo IWL_MAX_TID_COUNT, 0); 558e705c121SKalle Valo } 559e705c121SKalle Valo } 560e705c121SKalle Valo 561e705c121SKalle Valo static void iwl_mvm_ack_rates(struct iwl_mvm *mvm, 562e705c121SKalle Valo struct ieee80211_vif *vif, 56357fbcce3SJohannes Berg enum nl80211_band band, 564e705c121SKalle Valo u8 *cck_rates, u8 *ofdm_rates) 565e705c121SKalle Valo { 566e705c121SKalle Valo struct ieee80211_supported_band *sband; 567e705c121SKalle Valo unsigned long basic = vif->bss_conf.basic_rates; 568e705c121SKalle Valo int lowest_present_ofdm = 100; 569e705c121SKalle Valo int lowest_present_cck = 100; 570e705c121SKalle Valo u8 cck = 0; 571e705c121SKalle Valo u8 ofdm = 0; 572e705c121SKalle Valo int i; 573e705c121SKalle Valo 574e705c121SKalle Valo sband = mvm->hw->wiphy->bands[band]; 575e705c121SKalle Valo 576e705c121SKalle Valo for_each_set_bit(i, &basic, BITS_PER_LONG) { 577e705c121SKalle Valo int hw = sband->bitrates[i].hw_value; 578e705c121SKalle Valo if (hw >= IWL_FIRST_OFDM_RATE) { 579e705c121SKalle Valo ofdm |= BIT(hw - IWL_FIRST_OFDM_RATE); 580e705c121SKalle Valo if (lowest_present_ofdm > hw) 581e705c121SKalle Valo lowest_present_ofdm = hw; 582e705c121SKalle Valo } else { 583e705c121SKalle Valo BUILD_BUG_ON(IWL_FIRST_CCK_RATE != 0); 584e705c121SKalle Valo 585e705c121SKalle Valo cck |= BIT(hw); 586e705c121SKalle Valo if (lowest_present_cck > hw) 587e705c121SKalle Valo lowest_present_cck = hw; 588e705c121SKalle Valo } 589e705c121SKalle Valo } 590e705c121SKalle Valo 591e705c121SKalle Valo /* 592e705c121SKalle Valo * Now we've got the basic rates as bitmaps in the ofdm and cck 593e705c121SKalle Valo * variables. This isn't sufficient though, as there might not 594e705c121SKalle Valo * be all the right rates in the bitmap. E.g. if the only basic 595e705c121SKalle Valo * rates are 5.5 Mbps and 11 Mbps, we still need to add 1 Mbps 596e705c121SKalle Valo * and 6 Mbps because the 802.11-2007 standard says in 9.6: 597e705c121SKalle Valo * 598e705c121SKalle Valo * [...] a STA responding to a received frame shall transmit 599e705c121SKalle Valo * its Control Response frame [...] at the highest rate in the 600e705c121SKalle Valo * BSSBasicRateSet parameter that is less than or equal to the 601e705c121SKalle Valo * rate of the immediately previous frame in the frame exchange 602e705c121SKalle Valo * sequence ([...]) and that is of the same modulation class 603e705c121SKalle Valo * ([...]) as the received frame. If no rate contained in the 604e705c121SKalle Valo * BSSBasicRateSet parameter meets these conditions, then the 605e705c121SKalle Valo * control frame sent in response to a received frame shall be 606e705c121SKalle Valo * transmitted at the highest mandatory rate of the PHY that is 607e705c121SKalle Valo * less than or equal to the rate of the received frame, and 608e705c121SKalle Valo * that is of the same modulation class as the received frame. 609e705c121SKalle Valo * 610e705c121SKalle Valo * As a consequence, we need to add all mandatory rates that are 611e705c121SKalle Valo * lower than all of the basic rates to these bitmaps. 612e705c121SKalle Valo */ 613e705c121SKalle Valo 614e705c121SKalle Valo if (IWL_RATE_24M_INDEX < lowest_present_ofdm) 615e705c121SKalle Valo ofdm |= IWL_RATE_BIT_MSK(24) >> IWL_FIRST_OFDM_RATE; 616e705c121SKalle Valo if (IWL_RATE_12M_INDEX < lowest_present_ofdm) 617e705c121SKalle Valo ofdm |= IWL_RATE_BIT_MSK(12) >> IWL_FIRST_OFDM_RATE; 618e705c121SKalle Valo /* 6M already there or needed so always add */ 619e705c121SKalle Valo ofdm |= IWL_RATE_BIT_MSK(6) >> IWL_FIRST_OFDM_RATE; 620e705c121SKalle Valo 621e705c121SKalle Valo /* 622e705c121SKalle Valo * CCK is a bit more complex with DSSS vs. HR/DSSS vs. ERP. 623e705c121SKalle Valo * Note, however: 624e705c121SKalle Valo * - if no CCK rates are basic, it must be ERP since there must 625e705c121SKalle Valo * be some basic rates at all, so they're OFDM => ERP PHY 626e705c121SKalle Valo * (or we're in 5 GHz, and the cck bitmap will never be used) 627e705c121SKalle Valo * - if 11M is a basic rate, it must be ERP as well, so add 5.5M 628e705c121SKalle Valo * - if 5.5M is basic, 1M and 2M are mandatory 629e705c121SKalle Valo * - if 2M is basic, 1M is mandatory 630e705c121SKalle Valo * - if 1M is basic, that's the only valid ACK rate. 631e705c121SKalle Valo * As a consequence, it's not as complicated as it sounds, just add 632e705c121SKalle Valo * any lower rates to the ACK rate bitmap. 633e705c121SKalle Valo */ 634e705c121SKalle Valo if (IWL_RATE_11M_INDEX < lowest_present_cck) 635e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(11) >> IWL_FIRST_CCK_RATE; 636e705c121SKalle Valo if (IWL_RATE_5M_INDEX < lowest_present_cck) 637e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(5) >> IWL_FIRST_CCK_RATE; 638e705c121SKalle Valo if (IWL_RATE_2M_INDEX < lowest_present_cck) 639e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(2) >> IWL_FIRST_CCK_RATE; 640e705c121SKalle Valo /* 1M already there or needed so always add */ 641e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(1) >> IWL_FIRST_CCK_RATE; 642e705c121SKalle Valo 643e705c121SKalle Valo *cck_rates = cck; 644e705c121SKalle Valo *ofdm_rates = ofdm; 645e705c121SKalle Valo } 646e705c121SKalle Valo 647e705c121SKalle Valo static void iwl_mvm_mac_ctxt_set_ht_flags(struct iwl_mvm *mvm, 648e705c121SKalle Valo struct ieee80211_vif *vif, 649e705c121SKalle Valo struct iwl_mac_ctx_cmd *cmd) 650e705c121SKalle Valo { 651e705c121SKalle Valo /* for both sta and ap, ht_operation_mode hold the protection_mode */ 652e705c121SKalle Valo u8 protection_mode = vif->bss_conf.ht_operation_mode & 653e705c121SKalle Valo IEEE80211_HT_OP_MODE_PROTECTION; 654e705c121SKalle Valo /* The fw does not distinguish between ht and fat */ 655e705c121SKalle Valo u32 ht_flag = MAC_PROT_FLG_HT_PROT | MAC_PROT_FLG_FAT_PROT; 656e705c121SKalle Valo 657e705c121SKalle Valo IWL_DEBUG_RATE(mvm, "protection mode set to %d\n", protection_mode); 658e705c121SKalle Valo /* 659e705c121SKalle Valo * See section 9.23.3.1 of IEEE 80211-2012. 660e705c121SKalle Valo * Nongreenfield HT STAs Present is not supported. 661e705c121SKalle Valo */ 662e705c121SKalle Valo switch (protection_mode) { 663e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_NONE: 664e705c121SKalle Valo break; 665e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER: 666e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: 667e705c121SKalle Valo cmd->protection_flags |= cpu_to_le32(ht_flag); 668e705c121SKalle Valo break; 669e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: 670e705c121SKalle Valo /* Protect when channel wider than 20MHz */ 671e705c121SKalle Valo if (vif->bss_conf.chandef.width > NL80211_CHAN_WIDTH_20) 672e705c121SKalle Valo cmd->protection_flags |= cpu_to_le32(ht_flag); 673e705c121SKalle Valo break; 674e705c121SKalle Valo default: 675e705c121SKalle Valo IWL_ERR(mvm, "Illegal protection mode %d\n", 676e705c121SKalle Valo protection_mode); 677e705c121SKalle Valo break; 678e705c121SKalle Valo } 679e705c121SKalle Valo } 680e705c121SKalle Valo 681e705c121SKalle Valo static void iwl_mvm_mac_ctxt_cmd_common(struct iwl_mvm *mvm, 682e705c121SKalle Valo struct ieee80211_vif *vif, 683e705c121SKalle Valo struct iwl_mac_ctx_cmd *cmd, 684e705c121SKalle Valo const u8 *bssid_override, 685e705c121SKalle Valo u32 action) 686e705c121SKalle Valo { 687e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 688e705c121SKalle Valo struct ieee80211_chanctx_conf *chanctx; 689e705c121SKalle Valo bool ht_enabled = !!(vif->bss_conf.ht_operation_mode & 690e705c121SKalle Valo IEEE80211_HT_OP_MODE_PROTECTION); 691e705c121SKalle Valo u8 cck_ack_rates, ofdm_ack_rates; 692e705c121SKalle Valo const u8 *bssid = bssid_override ?: vif->bss_conf.bssid; 693e705c121SKalle Valo int i; 694e705c121SKalle Valo 695e705c121SKalle Valo cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 696e705c121SKalle Valo mvmvif->color)); 697e705c121SKalle Valo cmd->action = cpu_to_le32(action); 698e705c121SKalle Valo 699e705c121SKalle Valo switch (vif->type) { 700e705c121SKalle Valo case NL80211_IFTYPE_STATION: 701e705c121SKalle Valo if (vif->p2p) 702e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_P2P_STA); 703e705c121SKalle Valo else 704e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_BSS_STA); 705e705c121SKalle Valo break; 706e705c121SKalle Valo case NL80211_IFTYPE_AP: 707e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_GO); 708e705c121SKalle Valo break; 709e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 710e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_LISTENER); 711e705c121SKalle Valo break; 712e705c121SKalle Valo case NL80211_IFTYPE_P2P_DEVICE: 713e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_P2P_DEVICE); 714e705c121SKalle Valo break; 715e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 716e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_IBSS); 717e705c121SKalle Valo break; 718e705c121SKalle Valo default: 719e705c121SKalle Valo WARN_ON_ONCE(1); 720e705c121SKalle Valo } 721e705c121SKalle Valo 722e705c121SKalle Valo cmd->tsf_id = cpu_to_le32(mvmvif->tsf_id); 723e705c121SKalle Valo 724e705c121SKalle Valo memcpy(cmd->node_addr, vif->addr, ETH_ALEN); 725e705c121SKalle Valo 726e705c121SKalle Valo if (bssid) 727e705c121SKalle Valo memcpy(cmd->bssid_addr, bssid, ETH_ALEN); 728e705c121SKalle Valo else 729e705c121SKalle Valo eth_broadcast_addr(cmd->bssid_addr); 730e705c121SKalle Valo 731e705c121SKalle Valo rcu_read_lock(); 732e705c121SKalle Valo chanctx = rcu_dereference(vif->chanctx_conf); 733e705c121SKalle Valo iwl_mvm_ack_rates(mvm, vif, chanctx ? chanctx->def.chan->band 73457fbcce3SJohannes Berg : NL80211_BAND_2GHZ, 735e705c121SKalle Valo &cck_ack_rates, &ofdm_ack_rates); 736e705c121SKalle Valo rcu_read_unlock(); 737e705c121SKalle Valo 738e705c121SKalle Valo cmd->cck_rates = cpu_to_le32((u32)cck_ack_rates); 739e705c121SKalle Valo cmd->ofdm_rates = cpu_to_le32((u32)ofdm_ack_rates); 740e705c121SKalle Valo 741e705c121SKalle Valo cmd->cck_short_preamble = 742e705c121SKalle Valo cpu_to_le32(vif->bss_conf.use_short_preamble ? 743e705c121SKalle Valo MAC_FLG_SHORT_PREAMBLE : 0); 744e705c121SKalle Valo cmd->short_slot = 745e705c121SKalle Valo cpu_to_le32(vif->bss_conf.use_short_slot ? 746e705c121SKalle Valo MAC_FLG_SHORT_SLOT : 0); 747e705c121SKalle Valo 748bd6f5bd7SAyala Beker cmd->filter_flags = cpu_to_le32(MAC_FILTER_ACCEPT_GRP); 749bd6f5bd7SAyala Beker 750e705c121SKalle Valo for (i = 0; i < IEEE80211_NUM_ACS; i++) { 751e705c121SKalle Valo u8 txf = iwl_mvm_ac_to_tx_fifo[i]; 752e705c121SKalle Valo 753e705c121SKalle Valo cmd->ac[txf].cw_min = 754e705c121SKalle Valo cpu_to_le16(mvmvif->queue_params[i].cw_min); 755e705c121SKalle Valo cmd->ac[txf].cw_max = 756e705c121SKalle Valo cpu_to_le16(mvmvif->queue_params[i].cw_max); 757e705c121SKalle Valo cmd->ac[txf].edca_txop = 758e705c121SKalle Valo cpu_to_le16(mvmvif->queue_params[i].txop * 32); 759e705c121SKalle Valo cmd->ac[txf].aifsn = mvmvif->queue_params[i].aifs; 760e705c121SKalle Valo cmd->ac[txf].fifos_mask = BIT(txf); 761e705c121SKalle Valo } 762e705c121SKalle Valo 763e705c121SKalle Valo if (vif->bss_conf.qos) 764e705c121SKalle Valo cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_UPDATE_EDCA); 765e705c121SKalle Valo 766e705c121SKalle Valo if (vif->bss_conf.use_cts_prot) 767e705c121SKalle Valo cmd->protection_flags |= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT); 768e705c121SKalle Valo 769e705c121SKalle Valo IWL_DEBUG_RATE(mvm, "use_cts_prot %d, ht_operation_mode %d\n", 770e705c121SKalle Valo vif->bss_conf.use_cts_prot, 771e705c121SKalle Valo vif->bss_conf.ht_operation_mode); 772e705c121SKalle Valo if (vif->bss_conf.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) 773e705c121SKalle Valo cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_TGN); 774e705c121SKalle Valo if (ht_enabled) 775e705c121SKalle Valo iwl_mvm_mac_ctxt_set_ht_flags(mvm, vif, cmd); 776e705c121SKalle Valo } 777e705c121SKalle Valo 778e705c121SKalle Valo static int iwl_mvm_mac_ctxt_send_cmd(struct iwl_mvm *mvm, 779e705c121SKalle Valo struct iwl_mac_ctx_cmd *cmd) 780e705c121SKalle Valo { 781e705c121SKalle Valo int ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, 0, 782e705c121SKalle Valo sizeof(*cmd), cmd); 783e705c121SKalle Valo if (ret) 784e705c121SKalle Valo IWL_ERR(mvm, "Failed to send MAC context (action:%d): %d\n", 785e705c121SKalle Valo le32_to_cpu(cmd->action), ret); 786e705c121SKalle Valo return ret; 787e705c121SKalle Valo } 788e705c121SKalle Valo 789e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_sta(struct iwl_mvm *mvm, 790e705c121SKalle Valo struct ieee80211_vif *vif, 791e705c121SKalle Valo u32 action, bool force_assoc_off, 792e705c121SKalle Valo const u8 *bssid_override) 793e705c121SKalle Valo { 794e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 795e705c121SKalle Valo struct iwl_mac_data_sta *ctxt_sta; 796e705c121SKalle Valo 797e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_STATION); 798e705c121SKalle Valo 799e705c121SKalle Valo /* Fill the common data for all mac context types */ 800e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, bssid_override, action); 801e705c121SKalle Valo 802e705c121SKalle Valo if (vif->p2p) { 803e705c121SKalle Valo struct ieee80211_p2p_noa_attr *noa = 804e705c121SKalle Valo &vif->bss_conf.p2p_noa_attr; 805e705c121SKalle Valo 806e705c121SKalle Valo cmd.p2p_sta.ctwin = cpu_to_le32(noa->oppps_ctwindow & 807e705c121SKalle Valo IEEE80211_P2P_OPPPS_CTWINDOW_MASK); 808e705c121SKalle Valo ctxt_sta = &cmd.p2p_sta.sta; 809e705c121SKalle Valo } else { 810e705c121SKalle Valo ctxt_sta = &cmd.sta; 811e705c121SKalle Valo } 812e705c121SKalle Valo 813e705c121SKalle Valo /* We need the dtim_period to set the MAC as associated */ 814e705c121SKalle Valo if (vif->bss_conf.assoc && vif->bss_conf.dtim_period && 815e705c121SKalle Valo !force_assoc_off) { 816e705c121SKalle Valo u32 dtim_offs; 817e705c121SKalle Valo 818e705c121SKalle Valo /* 819e705c121SKalle Valo * The DTIM count counts down, so when it is N that means N 820e705c121SKalle Valo * more beacon intervals happen until the DTIM TBTT. Therefore 821e705c121SKalle Valo * add this to the current time. If that ends up being in the 822e705c121SKalle Valo * future, the firmware will handle it. 823e705c121SKalle Valo * 824e705c121SKalle Valo * Also note that the system_timestamp (which we get here as 825e705c121SKalle Valo * "sync_device_ts") and TSF timestamp aren't at exactly the 826e705c121SKalle Valo * same offset in the frame -- the TSF is at the first symbol 827e705c121SKalle Valo * of the TSF, the system timestamp is at signal acquisition 828e705c121SKalle Valo * time. This means there's an offset between them of at most 829e705c121SKalle Valo * a few hundred microseconds (24 * 8 bits + PLCP time gives 830e705c121SKalle Valo * 384us in the longest case), this is currently not relevant 831e705c121SKalle Valo * as the firmware wakes up around 2ms before the TBTT. 832e705c121SKalle Valo */ 833e705c121SKalle Valo dtim_offs = vif->bss_conf.sync_dtim_count * 834e705c121SKalle Valo vif->bss_conf.beacon_int; 835e705c121SKalle Valo /* convert TU to usecs */ 836e705c121SKalle Valo dtim_offs *= 1024; 837e705c121SKalle Valo 838e705c121SKalle Valo ctxt_sta->dtim_tsf = 839e705c121SKalle Valo cpu_to_le64(vif->bss_conf.sync_tsf + dtim_offs); 840e705c121SKalle Valo ctxt_sta->dtim_time = 841e705c121SKalle Valo cpu_to_le32(vif->bss_conf.sync_device_ts + dtim_offs); 842e705c121SKalle Valo 843e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "DTIM TBTT is 0x%llx/0x%x, offset %d\n", 844e705c121SKalle Valo le64_to_cpu(ctxt_sta->dtim_tsf), 845e705c121SKalle Valo le32_to_cpu(ctxt_sta->dtim_time), 846e705c121SKalle Valo dtim_offs); 847e705c121SKalle Valo 848e705c121SKalle Valo ctxt_sta->is_assoc = cpu_to_le32(1); 849e705c121SKalle Valo } else { 850e705c121SKalle Valo ctxt_sta->is_assoc = cpu_to_le32(0); 851e705c121SKalle Valo 852e705c121SKalle Valo /* Allow beacons to pass through as long as we are not 853e705c121SKalle Valo * associated, or we do not have dtim period information. 854e705c121SKalle Valo */ 855e705c121SKalle Valo cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); 856e705c121SKalle Valo } 857e705c121SKalle Valo 858e705c121SKalle Valo ctxt_sta->bi = cpu_to_le32(vif->bss_conf.beacon_int); 859e705c121SKalle Valo ctxt_sta->bi_reciprocal = 860e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int)); 861e705c121SKalle Valo ctxt_sta->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int * 862e705c121SKalle Valo vif->bss_conf.dtim_period); 863e705c121SKalle Valo ctxt_sta->dtim_reciprocal = 864e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int * 865e705c121SKalle Valo vif->bss_conf.dtim_period)); 866e705c121SKalle Valo 867e705c121SKalle Valo ctxt_sta->listen_interval = cpu_to_le32(mvm->hw->conf.listen_interval); 868e705c121SKalle Valo ctxt_sta->assoc_id = cpu_to_le32(vif->bss_conf.aid); 869e705c121SKalle Valo 870e705c121SKalle Valo if (vif->probe_req_reg && vif->bss_conf.assoc && vif->p2p) 871e705c121SKalle Valo cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); 872e705c121SKalle Valo 873e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 874e705c121SKalle Valo } 875e705c121SKalle Valo 876e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_listener(struct iwl_mvm *mvm, 877e705c121SKalle Valo struct ieee80211_vif *vif, 878e705c121SKalle Valo u32 action) 879e705c121SKalle Valo { 880e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 8810e39eb03SChaya Rachel Ivgi u32 tfd_queue_msk = 0; 8820e39eb03SChaya Rachel Ivgi int ret, i; 883e705c121SKalle Valo 884e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_MONITOR); 885e705c121SKalle Valo 886e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 887e705c121SKalle Valo 888737847aaSLiad Kaufman if (!iwl_mvm_is_dqa_supported(mvm)) { 8890e39eb03SChaya Rachel Ivgi for (i = 0; i < IEEE80211_NUM_ACS; i++) 8900e39eb03SChaya Rachel Ivgi if (vif->hw_queue[i] != IEEE80211_INVAL_HW_QUEUE) 8910e39eb03SChaya Rachel Ivgi tfd_queue_msk |= BIT(vif->hw_queue[i]); 892737847aaSLiad Kaufman } 8930e39eb03SChaya Rachel Ivgi 894e705c121SKalle Valo cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROMISC | 895e705c121SKalle Valo MAC_FILTER_IN_CONTROL_AND_MGMT | 896e705c121SKalle Valo MAC_FILTER_IN_BEACON | 897e705c121SKalle Valo MAC_FILTER_IN_PROBE_REQUEST | 898e705c121SKalle Valo MAC_FILTER_IN_CRC32); 899e705c121SKalle Valo ieee80211_hw_set(mvm->hw, RX_INCLUDES_FCS); 900e705c121SKalle Valo 9010e39eb03SChaya Rachel Ivgi /* Allocate sniffer station */ 9020e39eb03SChaya Rachel Ivgi ret = iwl_mvm_allocate_int_sta(mvm, &mvm->snif_sta, tfd_queue_msk, 9030e39eb03SChaya Rachel Ivgi vif->type); 9040e39eb03SChaya Rachel Ivgi if (ret) 9050e39eb03SChaya Rachel Ivgi return ret; 9060e39eb03SChaya Rachel Ivgi 907e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 908e705c121SKalle Valo } 909e705c121SKalle Valo 910e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_ibss(struct iwl_mvm *mvm, 911e705c121SKalle Valo struct ieee80211_vif *vif, 912e705c121SKalle Valo u32 action) 913e705c121SKalle Valo { 914e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 915e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 916e705c121SKalle Valo 917e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_ADHOC); 918e705c121SKalle Valo 919e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 920e705c121SKalle Valo 921e705c121SKalle Valo cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_BEACON | 922e705c121SKalle Valo MAC_FILTER_IN_PROBE_REQUEST); 923e705c121SKalle Valo 924e705c121SKalle Valo /* cmd.ibss.beacon_time/cmd.ibss.beacon_tsf are curently ignored */ 925e705c121SKalle Valo cmd.ibss.bi = cpu_to_le32(vif->bss_conf.beacon_int); 926e705c121SKalle Valo cmd.ibss.bi_reciprocal = 927e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int)); 928e705c121SKalle Valo 929e705c121SKalle Valo /* TODO: Assumes that the beacon id == mac context id */ 930e705c121SKalle Valo cmd.ibss.beacon_template = cpu_to_le32(mvmvif->id); 931e705c121SKalle Valo 932e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 933e705c121SKalle Valo } 934e705c121SKalle Valo 935e705c121SKalle Valo struct iwl_mvm_go_iterator_data { 936e705c121SKalle Valo bool go_active; 937e705c121SKalle Valo }; 938e705c121SKalle Valo 939e705c121SKalle Valo static void iwl_mvm_go_iterator(void *_data, u8 *mac, struct ieee80211_vif *vif) 940e705c121SKalle Valo { 941e705c121SKalle Valo struct iwl_mvm_go_iterator_data *data = _data; 942e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 943e705c121SKalle Valo 944e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP && vif->p2p && 945e705c121SKalle Valo mvmvif->ap_ibss_active) 946e705c121SKalle Valo data->go_active = true; 947e705c121SKalle Valo } 948e705c121SKalle Valo 949e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_p2p_device(struct iwl_mvm *mvm, 950e705c121SKalle Valo struct ieee80211_vif *vif, 951e705c121SKalle Valo u32 action) 952e705c121SKalle Valo { 953e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 954e705c121SKalle Valo struct iwl_mvm_go_iterator_data data = {}; 955e705c121SKalle Valo 956e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_P2P_DEVICE); 957e705c121SKalle Valo 958e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 959e705c121SKalle Valo 960e705c121SKalle Valo cmd.protection_flags |= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT); 961e705c121SKalle Valo 962e705c121SKalle Valo /* Override the filter flags to accept only probe requests */ 963e705c121SKalle Valo cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); 964e705c121SKalle Valo 965e705c121SKalle Valo /* 966e705c121SKalle Valo * This flag should be set to true when the P2P Device is 967e705c121SKalle Valo * discoverable and there is at least another active P2P GO. Settings 968e705c121SKalle Valo * this flag will allow the P2P Device to be discoverable on other 969e705c121SKalle Valo * channels in addition to its listen channel. 970e705c121SKalle Valo * Note that this flag should not be set in other cases as it opens the 971e705c121SKalle Valo * Rx filters on all MAC and increases the number of interrupts. 972e705c121SKalle Valo */ 973e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 974e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 975e705c121SKalle Valo iwl_mvm_go_iterator, &data); 976e705c121SKalle Valo 977e705c121SKalle Valo cmd.p2p_dev.is_disc_extended = cpu_to_le32(data.go_active ? 1 : 0); 978e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 979e705c121SKalle Valo } 980e705c121SKalle Valo 981e705c121SKalle Valo static void iwl_mvm_mac_ctxt_set_tim(struct iwl_mvm *mvm, 982d3a108a4SAndrei Otcheretianski struct iwl_mac_beacon_cmd_v6 *beacon_cmd, 983e705c121SKalle Valo u8 *beacon, u32 frame_size) 984e705c121SKalle Valo { 985e705c121SKalle Valo u32 tim_idx; 986e705c121SKalle Valo struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon; 987e705c121SKalle Valo 988e705c121SKalle Valo /* The index is relative to frame start but we start looking at the 989e705c121SKalle Valo * variable-length part of the beacon. */ 990e705c121SKalle Valo tim_idx = mgmt->u.beacon.variable - beacon; 991e705c121SKalle Valo 992e705c121SKalle Valo /* Parse variable-length elements of beacon to find WLAN_EID_TIM */ 993e705c121SKalle Valo while ((tim_idx < (frame_size - 2)) && 994e705c121SKalle Valo (beacon[tim_idx] != WLAN_EID_TIM)) 995e705c121SKalle Valo tim_idx += beacon[tim_idx+1] + 2; 996e705c121SKalle Valo 997e705c121SKalle Valo /* If TIM field was found, set variables */ 998e705c121SKalle Valo if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) { 999e705c121SKalle Valo beacon_cmd->tim_idx = cpu_to_le32(tim_idx); 1000e705c121SKalle Valo beacon_cmd->tim_size = cpu_to_le32((u32)beacon[tim_idx+1]); 1001e705c121SKalle Valo } else { 1002e705c121SKalle Valo IWL_WARN(mvm, "Unable to find TIM Element in beacon\n"); 1003e705c121SKalle Valo } 1004e705c121SKalle Valo } 1005e705c121SKalle Valo 1006d3a108a4SAndrei Otcheretianski static u32 iwl_mvm_find_ie_offset(u8 *beacon, u8 eid, u32 frame_size) 1007d3a108a4SAndrei Otcheretianski { 1008d3a108a4SAndrei Otcheretianski struct ieee80211_mgmt *mgmt = (void *)beacon; 1009d3a108a4SAndrei Otcheretianski const u8 *ie; 1010d3a108a4SAndrei Otcheretianski 1011d3a108a4SAndrei Otcheretianski if (WARN_ON_ONCE(frame_size <= (mgmt->u.beacon.variable - beacon))) 1012d3a108a4SAndrei Otcheretianski return 0; 1013d3a108a4SAndrei Otcheretianski 1014d3a108a4SAndrei Otcheretianski frame_size -= mgmt->u.beacon.variable - beacon; 1015d3a108a4SAndrei Otcheretianski 1016d3a108a4SAndrei Otcheretianski ie = cfg80211_find_ie(eid, mgmt->u.beacon.variable, frame_size); 1017d3a108a4SAndrei Otcheretianski if (!ie) 1018d3a108a4SAndrei Otcheretianski return 0; 1019d3a108a4SAndrei Otcheretianski 1020d3a108a4SAndrei Otcheretianski return ie - beacon; 1021d3a108a4SAndrei Otcheretianski } 1022d3a108a4SAndrei Otcheretianski 1023e705c121SKalle Valo static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm, 1024e705c121SKalle Valo struct ieee80211_vif *vif, 1025e705c121SKalle Valo struct sk_buff *beacon) 1026e705c121SKalle Valo { 1027e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1028e705c121SKalle Valo struct iwl_host_cmd cmd = { 1029e705c121SKalle Valo .id = BEACON_TEMPLATE_CMD, 1030e705c121SKalle Valo .flags = CMD_ASYNC, 1031e705c121SKalle Valo }; 1032d3a108a4SAndrei Otcheretianski union { 1033d3a108a4SAndrei Otcheretianski struct iwl_mac_beacon_cmd_v6 beacon_cmd_v6; 1034d3a108a4SAndrei Otcheretianski struct iwl_mac_beacon_cmd beacon_cmd; 1035d3a108a4SAndrei Otcheretianski } u = {}; 1036e705c121SKalle Valo struct ieee80211_tx_info *info; 1037e705c121SKalle Valo u32 beacon_skb_len; 1038e705c121SKalle Valo u32 rate, tx_flags; 1039e705c121SKalle Valo 1040e705c121SKalle Valo if (WARN_ON(!beacon)) 1041e705c121SKalle Valo return -EINVAL; 1042e705c121SKalle Valo 1043e705c121SKalle Valo beacon_skb_len = beacon->len; 1044e705c121SKalle Valo 1045e705c121SKalle Valo /* TODO: for now the beacon template id is set to be the mac context id. 1046e705c121SKalle Valo * Might be better to handle it as another resource ... */ 1047d3a108a4SAndrei Otcheretianski u.beacon_cmd_v6.template_id = cpu_to_le32((u32)mvmvif->id); 1048e705c121SKalle Valo info = IEEE80211_SKB_CB(beacon); 1049e705c121SKalle Valo 1050e705c121SKalle Valo /* Set up TX command fields */ 1051d3a108a4SAndrei Otcheretianski u.beacon_cmd_v6.tx.len = cpu_to_le16((u16)beacon_skb_len); 1052d3a108a4SAndrei Otcheretianski u.beacon_cmd_v6.tx.sta_id = mvmvif->bcast_sta.sta_id; 1053d3a108a4SAndrei Otcheretianski u.beacon_cmd_v6.tx.life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE); 1054e705c121SKalle Valo tx_flags = TX_CMD_FLG_SEQ_CTL | TX_CMD_FLG_TSF; 1055e705c121SKalle Valo tx_flags |= 1056e705c121SKalle Valo iwl_mvm_bt_coex_tx_prio(mvm, (void *)beacon->data, info, 0) << 1057e705c121SKalle Valo TX_CMD_FLG_BT_PRIO_POS; 1058d3a108a4SAndrei Otcheretianski u.beacon_cmd_v6.tx.tx_flags = cpu_to_le32(tx_flags); 1059e705c121SKalle Valo 10601e3c3c35SEmmanuel Grumbach if (!fw_has_capa(&mvm->fw->ucode_capa, 10611e3c3c35SEmmanuel Grumbach IWL_UCODE_TLV_CAPA_BEACON_ANT_SELECTION)) { 1062e705c121SKalle Valo mvm->mgmt_last_antenna_idx = 1063e705c121SKalle Valo iwl_mvm_next_antenna(mvm, iwl_mvm_get_valid_tx_ant(mvm), 1064e705c121SKalle Valo mvm->mgmt_last_antenna_idx); 10651e3c3c35SEmmanuel Grumbach } 1066e705c121SKalle Valo 1067d3a108a4SAndrei Otcheretianski u.beacon_cmd_v6.tx.rate_n_flags = 1068e705c121SKalle Valo cpu_to_le32(BIT(mvm->mgmt_last_antenna_idx) << 1069e705c121SKalle Valo RATE_MCS_ANT_POS); 1070e705c121SKalle Valo 107157fbcce3SJohannes Berg if (info->band == NL80211_BAND_5GHZ || vif->p2p) { 1072e705c121SKalle Valo rate = IWL_FIRST_OFDM_RATE; 1073e705c121SKalle Valo } else { 1074e705c121SKalle Valo rate = IWL_FIRST_CCK_RATE; 1075d3a108a4SAndrei Otcheretianski u.beacon_cmd_v6.tx.rate_n_flags |= 1076d3a108a4SAndrei Otcheretianski cpu_to_le32(RATE_MCS_CCK_MSK); 1077e705c121SKalle Valo } 1078d3a108a4SAndrei Otcheretianski u.beacon_cmd_v6.tx.rate_n_flags |= 1079e705c121SKalle Valo cpu_to_le32(iwl_mvm_mac80211_idx_to_hwrate(rate)); 1080e705c121SKalle Valo 1081e705c121SKalle Valo /* Set up TX beacon command fields */ 1082e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP) 1083d3a108a4SAndrei Otcheretianski iwl_mvm_mac_ctxt_set_tim(mvm, &u.beacon_cmd_v6, 1084e705c121SKalle Valo beacon->data, 1085e705c121SKalle Valo beacon_skb_len); 1086e705c121SKalle Valo 1087e705c121SKalle Valo /* Submit command */ 1088d3a108a4SAndrei Otcheretianski 1089d3a108a4SAndrei Otcheretianski if (fw_has_capa(&mvm->fw->ucode_capa, 1090d3a108a4SAndrei Otcheretianski IWL_UCODE_TLV_CAPA_CSA_AND_TBTT_OFFLOAD)) { 1091d3a108a4SAndrei Otcheretianski u.beacon_cmd.csa_offset = 1092d3a108a4SAndrei Otcheretianski cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, 1093d3a108a4SAndrei Otcheretianski WLAN_EID_CHANNEL_SWITCH, 1094d3a108a4SAndrei Otcheretianski beacon_skb_len)); 1095d3a108a4SAndrei Otcheretianski u.beacon_cmd.ecsa_offset = 1096d3a108a4SAndrei Otcheretianski cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, 1097d3a108a4SAndrei Otcheretianski WLAN_EID_EXT_CHANSWITCH_ANN, 1098d3a108a4SAndrei Otcheretianski beacon_skb_len)); 1099d3a108a4SAndrei Otcheretianski 1100d3a108a4SAndrei Otcheretianski cmd.len[0] = sizeof(u.beacon_cmd); 1101d3a108a4SAndrei Otcheretianski } else { 1102d3a108a4SAndrei Otcheretianski cmd.len[0] = sizeof(u.beacon_cmd_v6); 1103d3a108a4SAndrei Otcheretianski } 1104d3a108a4SAndrei Otcheretianski 1105d3a108a4SAndrei Otcheretianski cmd.data[0] = &u; 1106e705c121SKalle Valo cmd.dataflags[0] = 0; 1107e705c121SKalle Valo cmd.len[1] = beacon_skb_len; 1108e705c121SKalle Valo cmd.data[1] = beacon->data; 1109e705c121SKalle Valo cmd.dataflags[1] = IWL_HCMD_DFL_DUP; 1110e705c121SKalle Valo 1111e705c121SKalle Valo return iwl_mvm_send_cmd(mvm, &cmd); 1112e705c121SKalle Valo } 1113e705c121SKalle Valo 1114e705c121SKalle Valo /* The beacon template for the AP/GO/IBSS has changed and needs update */ 1115e705c121SKalle Valo int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm, 1116e705c121SKalle Valo struct ieee80211_vif *vif) 1117e705c121SKalle Valo { 1118e705c121SKalle Valo struct sk_buff *beacon; 1119e705c121SKalle Valo int ret; 1120e705c121SKalle Valo 1121e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_AP && 1122e705c121SKalle Valo vif->type != NL80211_IFTYPE_ADHOC); 1123e705c121SKalle Valo 1124e705c121SKalle Valo beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL); 1125e705c121SKalle Valo if (!beacon) 1126e705c121SKalle Valo return -ENOMEM; 1127e705c121SKalle Valo 1128e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_send_beacon(mvm, vif, beacon); 1129e705c121SKalle Valo dev_kfree_skb(beacon); 1130e705c121SKalle Valo return ret; 1131e705c121SKalle Valo } 1132e705c121SKalle Valo 1133e705c121SKalle Valo struct iwl_mvm_mac_ap_iterator_data { 1134e705c121SKalle Valo struct iwl_mvm *mvm; 1135e705c121SKalle Valo struct ieee80211_vif *vif; 1136e705c121SKalle Valo u32 beacon_device_ts; 1137e705c121SKalle Valo u16 beacon_int; 1138e705c121SKalle Valo }; 1139e705c121SKalle Valo 1140e705c121SKalle Valo /* Find the beacon_device_ts and beacon_int for a managed interface */ 1141e705c121SKalle Valo static void iwl_mvm_mac_ap_iterator(void *_data, u8 *mac, 1142e705c121SKalle Valo struct ieee80211_vif *vif) 1143e705c121SKalle Valo { 1144e705c121SKalle Valo struct iwl_mvm_mac_ap_iterator_data *data = _data; 1145e705c121SKalle Valo 1146e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc) 1147e705c121SKalle Valo return; 1148e705c121SKalle Valo 1149e705c121SKalle Valo /* Station client has higher priority over P2P client*/ 1150e705c121SKalle Valo if (vif->p2p && data->beacon_device_ts) 1151e705c121SKalle Valo return; 1152e705c121SKalle Valo 1153e705c121SKalle Valo data->beacon_device_ts = vif->bss_conf.sync_device_ts; 1154e705c121SKalle Valo data->beacon_int = vif->bss_conf.beacon_int; 1155e705c121SKalle Valo } 1156e705c121SKalle Valo 1157e705c121SKalle Valo /* 1158e705c121SKalle Valo * Fill the specific data for mac context of type AP of P2P GO 1159e705c121SKalle Valo */ 1160e705c121SKalle Valo static void iwl_mvm_mac_ctxt_cmd_fill_ap(struct iwl_mvm *mvm, 1161e705c121SKalle Valo struct ieee80211_vif *vif, 1162186cd49aSJohannes Berg struct iwl_mac_ctx_cmd *cmd, 1163e705c121SKalle Valo struct iwl_mac_data_ap *ctxt_ap, 1164e705c121SKalle Valo bool add) 1165e705c121SKalle Valo { 1166e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1167e705c121SKalle Valo struct iwl_mvm_mac_ap_iterator_data data = { 1168e705c121SKalle Valo .mvm = mvm, 1169e705c121SKalle Valo .vif = vif, 1170e705c121SKalle Valo .beacon_device_ts = 0 1171e705c121SKalle Valo }; 1172e705c121SKalle Valo 1173186cd49aSJohannes Berg /* in AP mode, the MCAST FIFO takes the EDCA params from VO */ 1174186cd49aSJohannes Berg cmd->ac[IWL_MVM_TX_FIFO_VO].fifos_mask |= BIT(IWL_MVM_TX_FIFO_MCAST); 1175186cd49aSJohannes Berg 1176186cd49aSJohannes Berg /* 1177186cd49aSJohannes Berg * in AP mode, pass probe requests and beacons from other APs 1178186cd49aSJohannes Berg * (needed for ht protection); when there're no any associated 1179186cd49aSJohannes Berg * station don't ask FW to pass beacons to prevent unnecessary 1180186cd49aSJohannes Berg * wake-ups. 1181186cd49aSJohannes Berg */ 1182186cd49aSJohannes Berg cmd->filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); 1183186cd49aSJohannes Berg if (mvmvif->ap_assoc_sta_count || !mvm->drop_bcn_ap_mode) { 1184186cd49aSJohannes Berg cmd->filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); 1185186cd49aSJohannes Berg IWL_DEBUG_HC(mvm, "Asking FW to pass beacons\n"); 1186186cd49aSJohannes Berg } else { 1187186cd49aSJohannes Berg IWL_DEBUG_HC(mvm, "No need to receive beacons\n"); 1188186cd49aSJohannes Berg } 1189186cd49aSJohannes Berg 1190e705c121SKalle Valo ctxt_ap->bi = cpu_to_le32(vif->bss_conf.beacon_int); 1191e705c121SKalle Valo ctxt_ap->bi_reciprocal = 1192e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int)); 1193e705c121SKalle Valo ctxt_ap->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int * 1194e705c121SKalle Valo vif->bss_conf.dtim_period); 1195e705c121SKalle Valo ctxt_ap->dtim_reciprocal = 1196e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int * 1197e705c121SKalle Valo vif->bss_conf.dtim_period)); 1198e705c121SKalle Valo 1199e705c121SKalle Valo ctxt_ap->mcast_qid = cpu_to_le32(vif->cab_queue); 1200e705c121SKalle Valo 1201e705c121SKalle Valo /* 1202e705c121SKalle Valo * Only set the beacon time when the MAC is being added, when we 1203e705c121SKalle Valo * just modify the MAC then we should keep the time -- the firmware 1204e705c121SKalle Valo * can otherwise have a "jumping" TBTT. 1205e705c121SKalle Valo */ 1206e705c121SKalle Valo if (add) { 1207e705c121SKalle Valo /* 1208e705c121SKalle Valo * If there is a station/P2P client interface which is 1209e705c121SKalle Valo * associated, set the AP's TBTT far enough from the station's 1210e705c121SKalle Valo * TBTT. Otherwise, set it to the current system time 1211e705c121SKalle Valo */ 1212e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 1213e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 1214e705c121SKalle Valo iwl_mvm_mac_ap_iterator, &data); 1215e705c121SKalle Valo 1216e705c121SKalle Valo if (data.beacon_device_ts) { 1217e705c121SKalle Valo u32 rand = (prandom_u32() % (64 - 36)) + 36; 1218e705c121SKalle Valo mvmvif->ap_beacon_time = data.beacon_device_ts + 1219e705c121SKalle Valo ieee80211_tu_to_usec(data.beacon_int * rand / 1220e705c121SKalle Valo 100); 1221e705c121SKalle Valo } else { 1222e705c121SKalle Valo mvmvif->ap_beacon_time = 1223e705c121SKalle Valo iwl_read_prph(mvm->trans, 1224e705c121SKalle Valo DEVICE_SYSTEM_TIME_REG); 1225e705c121SKalle Valo } 1226e705c121SKalle Valo } 1227e705c121SKalle Valo 1228e705c121SKalle Valo ctxt_ap->beacon_time = cpu_to_le32(mvmvif->ap_beacon_time); 1229e705c121SKalle Valo ctxt_ap->beacon_tsf = 0; /* unused */ 1230e705c121SKalle Valo 1231e705c121SKalle Valo /* TODO: Assume that the beacon id == mac context id */ 1232e705c121SKalle Valo ctxt_ap->beacon_template = cpu_to_le32(mvmvif->id); 1233e705c121SKalle Valo } 1234e705c121SKalle Valo 1235e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_ap(struct iwl_mvm *mvm, 1236e705c121SKalle Valo struct ieee80211_vif *vif, 1237e705c121SKalle Valo u32 action) 1238e705c121SKalle Valo { 1239e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 1240e705c121SKalle Valo 1241e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_AP || vif->p2p); 1242e705c121SKalle Valo 1243e705c121SKalle Valo /* Fill the common data for all mac context types */ 1244e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 1245e705c121SKalle Valo 1246e705c121SKalle Valo /* Fill the data specific for ap mode */ 1247186cd49aSJohannes Berg iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd, &cmd.ap, 1248e705c121SKalle Valo action == FW_CTXT_ACTION_ADD); 1249e705c121SKalle Valo 1250e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 1251e705c121SKalle Valo } 1252e705c121SKalle Valo 1253e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_go(struct iwl_mvm *mvm, 1254e705c121SKalle Valo struct ieee80211_vif *vif, 1255e705c121SKalle Valo u32 action) 1256e705c121SKalle Valo { 1257e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 1258e705c121SKalle Valo struct ieee80211_p2p_noa_attr *noa = &vif->bss_conf.p2p_noa_attr; 1259e705c121SKalle Valo 1260e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_AP || !vif->p2p); 1261e705c121SKalle Valo 1262e705c121SKalle Valo /* Fill the common data for all mac context types */ 1263e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 1264e705c121SKalle Valo 1265e705c121SKalle Valo /* Fill the data specific for GO mode */ 1266186cd49aSJohannes Berg iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd, &cmd.go.ap, 1267e705c121SKalle Valo action == FW_CTXT_ACTION_ADD); 1268e705c121SKalle Valo 1269e705c121SKalle Valo cmd.go.ctwin = cpu_to_le32(noa->oppps_ctwindow & 1270e705c121SKalle Valo IEEE80211_P2P_OPPPS_CTWINDOW_MASK); 1271e705c121SKalle Valo cmd.go.opp_ps_enabled = 1272e705c121SKalle Valo cpu_to_le32(!!(noa->oppps_ctwindow & 1273e705c121SKalle Valo IEEE80211_P2P_OPPPS_ENABLE_BIT)); 1274e705c121SKalle Valo 1275e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 1276e705c121SKalle Valo } 1277e705c121SKalle Valo 1278e705c121SKalle Valo static int iwl_mvm_mac_ctx_send(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1279e705c121SKalle Valo u32 action, bool force_assoc_off, 1280e705c121SKalle Valo const u8 *bssid_override) 1281e705c121SKalle Valo { 1282e705c121SKalle Valo switch (vif->type) { 1283e705c121SKalle Valo case NL80211_IFTYPE_STATION: 1284e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_sta(mvm, vif, action, 1285e705c121SKalle Valo force_assoc_off, 1286e705c121SKalle Valo bssid_override); 1287e705c121SKalle Valo break; 1288e705c121SKalle Valo case NL80211_IFTYPE_AP: 1289e705c121SKalle Valo if (!vif->p2p) 1290e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_ap(mvm, vif, action); 1291e705c121SKalle Valo else 1292e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_go(mvm, vif, action); 1293e705c121SKalle Valo break; 1294e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 1295e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_listener(mvm, vif, action); 1296e705c121SKalle Valo case NL80211_IFTYPE_P2P_DEVICE: 1297e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_p2p_device(mvm, vif, action); 1298e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 1299e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_ibss(mvm, vif, action); 1300e705c121SKalle Valo default: 1301e705c121SKalle Valo break; 1302e705c121SKalle Valo } 1303e705c121SKalle Valo 1304e705c121SKalle Valo return -EOPNOTSUPP; 1305e705c121SKalle Valo } 1306e705c121SKalle Valo 1307e705c121SKalle Valo int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1308e705c121SKalle Valo { 1309e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1310e705c121SKalle Valo int ret; 1311e705c121SKalle Valo 1312e705c121SKalle Valo if (WARN_ONCE(mvmvif->uploaded, "Adding active MAC %pM/%d\n", 1313e705c121SKalle Valo vif->addr, ieee80211_vif_type_p2p(vif))) 1314e705c121SKalle Valo return -EIO; 1315e705c121SKalle Valo 1316e705c121SKalle Valo ret = iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_ADD, 1317e705c121SKalle Valo true, NULL); 1318e705c121SKalle Valo if (ret) 1319e705c121SKalle Valo return ret; 1320e705c121SKalle Valo 1321e705c121SKalle Valo /* will only do anything at resume from D3 time */ 1322e705c121SKalle Valo iwl_mvm_set_last_nonqos_seq(mvm, vif); 1323e705c121SKalle Valo 1324e705c121SKalle Valo mvmvif->uploaded = true; 1325e705c121SKalle Valo return 0; 1326e705c121SKalle Valo } 1327e705c121SKalle Valo 1328e705c121SKalle Valo int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1329e705c121SKalle Valo bool force_assoc_off, const u8 *bssid_override) 1330e705c121SKalle Valo { 1331e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1332e705c121SKalle Valo 1333e705c121SKalle Valo if (WARN_ONCE(!mvmvif->uploaded, "Changing inactive MAC %pM/%d\n", 1334e705c121SKalle Valo vif->addr, ieee80211_vif_type_p2p(vif))) 1335e705c121SKalle Valo return -EIO; 1336e705c121SKalle Valo 1337e705c121SKalle Valo return iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_MODIFY, 1338e705c121SKalle Valo force_assoc_off, bssid_override); 1339e705c121SKalle Valo } 1340e705c121SKalle Valo 1341e705c121SKalle Valo int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1342e705c121SKalle Valo { 1343e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1344e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd; 1345e705c121SKalle Valo int ret; 1346e705c121SKalle Valo 1347e705c121SKalle Valo if (WARN_ONCE(!mvmvif->uploaded, "Removing inactive MAC %pM/%d\n", 1348e705c121SKalle Valo vif->addr, ieee80211_vif_type_p2p(vif))) 1349e705c121SKalle Valo return -EIO; 1350e705c121SKalle Valo 1351e705c121SKalle Valo memset(&cmd, 0, sizeof(cmd)); 1352e705c121SKalle Valo 1353e705c121SKalle Valo cmd.id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1354e705c121SKalle Valo mvmvif->color)); 1355e705c121SKalle Valo cmd.action = cpu_to_le32(FW_CTXT_ACTION_REMOVE); 1356e705c121SKalle Valo 1357e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, 0, 1358e705c121SKalle Valo sizeof(cmd), &cmd); 1359e705c121SKalle Valo if (ret) { 1360e705c121SKalle Valo IWL_ERR(mvm, "Failed to remove MAC context: %d\n", ret); 1361e705c121SKalle Valo return ret; 1362e705c121SKalle Valo } 1363e705c121SKalle Valo 1364e705c121SKalle Valo mvmvif->uploaded = false; 1365e705c121SKalle Valo 13660e39eb03SChaya Rachel Ivgi if (vif->type == NL80211_IFTYPE_MONITOR) { 1367e705c121SKalle Valo __clear_bit(IEEE80211_HW_RX_INCLUDES_FCS, mvm->hw->flags); 13680e39eb03SChaya Rachel Ivgi iwl_mvm_dealloc_snif_sta(mvm); 13690e39eb03SChaya Rachel Ivgi } 1370e705c121SKalle Valo 1371e705c121SKalle Valo return 0; 1372e705c121SKalle Valo } 1373e705c121SKalle Valo 1374e705c121SKalle Valo static void iwl_mvm_csa_count_down(struct iwl_mvm *mvm, 1375e705c121SKalle Valo struct ieee80211_vif *csa_vif, u32 gp2, 1376e705c121SKalle Valo bool tx_success) 1377e705c121SKalle Valo { 1378e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = 1379e705c121SKalle Valo iwl_mvm_vif_from_mac80211(csa_vif); 1380e705c121SKalle Valo 1381e705c121SKalle Valo /* Don't start to countdown from a failed beacon */ 1382e705c121SKalle Valo if (!tx_success && !mvmvif->csa_countdown) 1383e705c121SKalle Valo return; 1384e705c121SKalle Valo 1385e705c121SKalle Valo mvmvif->csa_countdown = true; 1386e705c121SKalle Valo 1387e705c121SKalle Valo if (!ieee80211_csa_is_complete(csa_vif)) { 1388e705c121SKalle Valo int c = ieee80211_csa_update_counter(csa_vif); 1389e705c121SKalle Valo 1390e705c121SKalle Valo iwl_mvm_mac_ctxt_beacon_changed(mvm, csa_vif); 1391e705c121SKalle Valo if (csa_vif->p2p && 1392e705c121SKalle Valo !iwl_mvm_te_scheduled(&mvmvif->time_event_data) && gp2 && 1393e705c121SKalle Valo tx_success) { 1394e705c121SKalle Valo u32 rel_time = (c + 1) * 1395e705c121SKalle Valo csa_vif->bss_conf.beacon_int - 1396e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_TIME_GO; 1397e705c121SKalle Valo u32 apply_time = gp2 + rel_time * 1024; 1398e705c121SKalle Valo 1399e705c121SKalle Valo iwl_mvm_schedule_csa_period(mvm, csa_vif, 1400e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_TIME_GO - 1401e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_MARGIN, 1402e705c121SKalle Valo apply_time); 1403e705c121SKalle Valo } 1404e705c121SKalle Valo } else if (!iwl_mvm_te_scheduled(&mvmvif->time_event_data)) { 1405e705c121SKalle Valo /* we don't have CSA NoA scheduled yet, switch now */ 1406e705c121SKalle Valo ieee80211_csa_finish(csa_vif); 1407e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_vif, NULL); 1408e705c121SKalle Valo } 1409e705c121SKalle Valo } 1410e705c121SKalle Valo 1411e705c121SKalle Valo void iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm, 1412e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 1413e705c121SKalle Valo { 1414e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 1415e705c121SKalle Valo struct iwl_extended_beacon_notif *beacon = (void *)pkt->data; 1416e705c121SKalle Valo struct iwl_mvm_tx_resp *beacon_notify_hdr; 1417e705c121SKalle Valo struct ieee80211_vif *csa_vif; 1418e705c121SKalle Valo struct ieee80211_vif *tx_blocked_vif; 1419e705c121SKalle Valo u16 status; 1420e705c121SKalle Valo 1421e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1422e705c121SKalle Valo 1423e705c121SKalle Valo beacon_notify_hdr = &beacon->beacon_notify_hdr; 1424e705c121SKalle Valo mvm->ap_last_beacon_gp2 = le32_to_cpu(beacon->gp2); 1425e705c121SKalle Valo 1426e705c121SKalle Valo status = le16_to_cpu(beacon_notify_hdr->status.status) & TX_STATUS_MSK; 1427e705c121SKalle Valo IWL_DEBUG_RX(mvm, 1428e705c121SKalle Valo "beacon status %#x retries:%d tsf:0x%16llX gp2:0x%X rate:%d\n", 1429e705c121SKalle Valo status, beacon_notify_hdr->failure_frame, 1430e705c121SKalle Valo le64_to_cpu(beacon->tsf), 1431e705c121SKalle Valo mvm->ap_last_beacon_gp2, 1432e705c121SKalle Valo le32_to_cpu(beacon_notify_hdr->initial_rate)); 1433e705c121SKalle Valo 1434e705c121SKalle Valo csa_vif = rcu_dereference_protected(mvm->csa_vif, 1435e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1436e705c121SKalle Valo if (unlikely(csa_vif && csa_vif->csa_active)) 1437e705c121SKalle Valo iwl_mvm_csa_count_down(mvm, csa_vif, mvm->ap_last_beacon_gp2, 1438e705c121SKalle Valo (status == TX_STATUS_SUCCESS)); 1439e705c121SKalle Valo 1440e705c121SKalle Valo tx_blocked_vif = rcu_dereference_protected(mvm->csa_tx_blocked_vif, 1441e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1442e705c121SKalle Valo if (unlikely(tx_blocked_vif)) { 1443e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = 1444e705c121SKalle Valo iwl_mvm_vif_from_mac80211(tx_blocked_vif); 1445e705c121SKalle Valo 1446e705c121SKalle Valo /* 1447e705c121SKalle Valo * The channel switch is started and we have blocked the 1448e705c121SKalle Valo * stations. If this is the first beacon (the timeout wasn't 1449e705c121SKalle Valo * set), set the unblock timeout, otherwise countdown 1450e705c121SKalle Valo */ 1451e705c121SKalle Valo if (!mvm->csa_tx_block_bcn_timeout) 1452e705c121SKalle Valo mvm->csa_tx_block_bcn_timeout = 1453e705c121SKalle Valo IWL_MVM_CS_UNBLOCK_TX_TIMEOUT; 1454e705c121SKalle Valo else 1455e705c121SKalle Valo mvm->csa_tx_block_bcn_timeout--; 1456e705c121SKalle Valo 1457e705c121SKalle Valo /* Check if the timeout is expired, and unblock tx */ 1458e705c121SKalle Valo if (mvm->csa_tx_block_bcn_timeout == 0) { 1459e705c121SKalle Valo iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 1460e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 1461e705c121SKalle Valo } 1462e705c121SKalle Valo } 1463e705c121SKalle Valo } 1464e705c121SKalle Valo 1465e705c121SKalle Valo static void iwl_mvm_beacon_loss_iterator(void *_data, u8 *mac, 1466e705c121SKalle Valo struct ieee80211_vif *vif) 1467e705c121SKalle Valo { 1468e705c121SKalle Valo struct iwl_missed_beacons_notif *missed_beacons = _data; 1469e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1470e705c121SKalle Valo struct iwl_mvm *mvm = mvmvif->mvm; 1471e705c121SKalle Valo struct iwl_fw_dbg_trigger_missed_bcon *bcon_trig; 1472e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trigger; 1473e705c121SKalle Valo u32 stop_trig_missed_bcon, stop_trig_missed_bcon_since_rx; 1474e705c121SKalle Valo u32 rx_missed_bcon, rx_missed_bcon_since_rx; 1475e705c121SKalle Valo 1476e705c121SKalle Valo if (mvmvif->id != (u16)le32_to_cpu(missed_beacons->mac_id)) 1477e705c121SKalle Valo return; 1478e705c121SKalle Valo 1479e705c121SKalle Valo rx_missed_bcon = le32_to_cpu(missed_beacons->consec_missed_beacons); 1480e705c121SKalle Valo rx_missed_bcon_since_rx = 1481e705c121SKalle Valo le32_to_cpu(missed_beacons->consec_missed_beacons_since_last_rx); 1482e705c121SKalle Valo /* 1483e705c121SKalle Valo * TODO: the threshold should be adjusted based on latency conditions, 1484e705c121SKalle Valo * and/or in case of a CS flow on one of the other AP vifs. 1485e705c121SKalle Valo */ 1486e705c121SKalle Valo if (le32_to_cpu(missed_beacons->consec_missed_beacons_since_last_rx) > 1487e705c121SKalle Valo IWL_MVM_MISSED_BEACONS_THRESHOLD) 1488e705c121SKalle Valo ieee80211_beacon_loss(vif); 1489e705c121SKalle Valo 1490e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, 1491e705c121SKalle Valo FW_DBG_TRIGGER_MISSED_BEACONS)) 1492e705c121SKalle Valo return; 1493e705c121SKalle Valo 1494e705c121SKalle Valo trigger = iwl_fw_dbg_get_trigger(mvm->fw, 1495e705c121SKalle Valo FW_DBG_TRIGGER_MISSED_BEACONS); 1496e705c121SKalle Valo bcon_trig = (void *)trigger->data; 1497e705c121SKalle Valo stop_trig_missed_bcon = le32_to_cpu(bcon_trig->stop_consec_missed_bcon); 1498e705c121SKalle Valo stop_trig_missed_bcon_since_rx = 1499e705c121SKalle Valo le32_to_cpu(bcon_trig->stop_consec_missed_bcon_since_rx); 1500e705c121SKalle Valo 1501e705c121SKalle Valo /* TODO: implement start trigger */ 1502e705c121SKalle Valo 1503e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trigger)) 1504e705c121SKalle Valo return; 1505e705c121SKalle Valo 1506e705c121SKalle Valo if (rx_missed_bcon_since_rx >= stop_trig_missed_bcon_since_rx || 1507e705c121SKalle Valo rx_missed_bcon >= stop_trig_missed_bcon) 1508e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(mvm, trigger, NULL); 1509e705c121SKalle Valo } 1510e705c121SKalle Valo 1511e705c121SKalle Valo void iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm *mvm, 1512e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 1513e705c121SKalle Valo { 1514e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 1515e705c121SKalle Valo struct iwl_missed_beacons_notif *mb = (void *)pkt->data; 1516e705c121SKalle Valo 1517e705c121SKalle Valo IWL_DEBUG_INFO(mvm, 1518e705c121SKalle Valo "missed bcn mac_id=%u, consecutive=%u (%u, %u, %u)\n", 1519e705c121SKalle Valo le32_to_cpu(mb->mac_id), 1520e705c121SKalle Valo le32_to_cpu(mb->consec_missed_beacons), 1521e705c121SKalle Valo le32_to_cpu(mb->consec_missed_beacons_since_last_rx), 1522e705c121SKalle Valo le32_to_cpu(mb->num_recvd_beacons), 1523e705c121SKalle Valo le32_to_cpu(mb->num_expected_beacons)); 1524e705c121SKalle Valo 1525e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic(mvm->hw, 1526e705c121SKalle Valo IEEE80211_IFACE_ITER_NORMAL, 1527e705c121SKalle Valo iwl_mvm_beacon_loss_iterator, 1528e705c121SKalle Valo mb); 1529e705c121SKalle Valo } 15300db056d3SSara Sharon 15310db056d3SSara Sharon void iwl_mvm_rx_stored_beacon_notif(struct iwl_mvm *mvm, 15320db056d3SSara Sharon struct iwl_rx_cmd_buffer *rxb) 15330db056d3SSara Sharon { 15340db056d3SSara Sharon struct iwl_rx_packet *pkt = rxb_addr(rxb); 15350db056d3SSara Sharon struct iwl_stored_beacon_notif *sb = (void *)pkt->data; 15360db056d3SSara Sharon struct ieee80211_rx_status rx_status; 15370db056d3SSara Sharon struct sk_buff *skb; 15380db056d3SSara Sharon u32 size = le32_to_cpu(sb->byte_count); 15390db056d3SSara Sharon 15400db056d3SSara Sharon if (size == 0) 15410db056d3SSara Sharon return; 15420db056d3SSara Sharon 15430db056d3SSara Sharon skb = alloc_skb(size, GFP_ATOMIC); 15440db056d3SSara Sharon if (!skb) { 15450db056d3SSara Sharon IWL_ERR(mvm, "alloc_skb failed\n"); 15460db056d3SSara Sharon return; 15470db056d3SSara Sharon } 15480db056d3SSara Sharon 15490db056d3SSara Sharon /* update rx_status according to the notification's metadata */ 15500db056d3SSara Sharon memset(&rx_status, 0, sizeof(rx_status)); 15510db056d3SSara Sharon rx_status.mactime = le64_to_cpu(sb->tsf); 155277fe7395SSara Sharon /* TSF as indicated by the firmware is at INA time */ 155377fe7395SSara Sharon rx_status.flag |= RX_FLAG_MACTIME_PLCP_START; 15540db056d3SSara Sharon rx_status.device_timestamp = le32_to_cpu(sb->system_time); 15550db056d3SSara Sharon rx_status.band = 155634118c25SSara Sharon (sb->band & cpu_to_le16(RX_RES_PHY_FLAGS_BAND_24)) ? 155757fbcce3SJohannes Berg NL80211_BAND_2GHZ : NL80211_BAND_5GHZ; 15580db056d3SSara Sharon rx_status.freq = 15590db056d3SSara Sharon ieee80211_channel_to_frequency(le16_to_cpu(sb->channel), 15600db056d3SSara Sharon rx_status.band); 15610db056d3SSara Sharon 15620db056d3SSara Sharon /* copy the data */ 15630db056d3SSara Sharon memcpy(skb_put(skb, size), sb->data, size); 15640db056d3SSara Sharon memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); 15650db056d3SSara Sharon 15660db056d3SSara Sharon /* pass it as regular rx to mac80211 */ 1567d63b548fSJohannes Berg ieee80211_rx_napi(mvm->hw, NULL, skb, NULL); 15680db056d3SSara Sharon } 1569d3a108a4SAndrei Otcheretianski 1570d3a108a4SAndrei Otcheretianski void iwl_mvm_channel_switch_noa_notif(struct iwl_mvm *mvm, 1571d3a108a4SAndrei Otcheretianski struct iwl_rx_cmd_buffer *rxb) 1572d3a108a4SAndrei Otcheretianski { 1573d3a108a4SAndrei Otcheretianski struct iwl_rx_packet *pkt = rxb_addr(rxb); 1574d3a108a4SAndrei Otcheretianski struct iwl_channel_switch_noa_notif *notif = (void *)pkt->data; 1575d3a108a4SAndrei Otcheretianski struct ieee80211_vif *csa_vif; 1576d3a108a4SAndrei Otcheretianski struct iwl_mvm_vif *mvmvif; 1577d3a108a4SAndrei Otcheretianski int len = iwl_rx_packet_payload_len(pkt); 1578d3a108a4SAndrei Otcheretianski u32 id_n_color; 1579d3a108a4SAndrei Otcheretianski 1580d3a108a4SAndrei Otcheretianski if (WARN_ON_ONCE(len < sizeof(*notif))) 1581d3a108a4SAndrei Otcheretianski return; 1582d3a108a4SAndrei Otcheretianski 1583d3a108a4SAndrei Otcheretianski rcu_read_lock(); 1584d3a108a4SAndrei Otcheretianski 1585d3a108a4SAndrei Otcheretianski csa_vif = rcu_dereference(mvm->csa_vif); 1586d3a108a4SAndrei Otcheretianski if (WARN_ON(!csa_vif || !csa_vif->csa_active)) 1587d3a108a4SAndrei Otcheretianski goto out_unlock; 1588d3a108a4SAndrei Otcheretianski 1589d3a108a4SAndrei Otcheretianski id_n_color = le32_to_cpu(notif->id_and_color); 1590d3a108a4SAndrei Otcheretianski 1591d3a108a4SAndrei Otcheretianski mvmvif = iwl_mvm_vif_from_mac80211(csa_vif); 1592d3a108a4SAndrei Otcheretianski if (WARN(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color) != id_n_color, 1593d3a108a4SAndrei Otcheretianski "channel switch noa notification on unexpected vif (csa_vif=%d, notif=%d)", 1594d3a108a4SAndrei Otcheretianski FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color), id_n_color)) 1595d3a108a4SAndrei Otcheretianski goto out_unlock; 1596d3a108a4SAndrei Otcheretianski 1597d3a108a4SAndrei Otcheretianski IWL_DEBUG_INFO(mvm, "Channel Switch Started Notification\n"); 1598d3a108a4SAndrei Otcheretianski 1599d3a108a4SAndrei Otcheretianski queue_delayed_work(system_wq, &mvm->cs_tx_unblock_dwork, 1600d3a108a4SAndrei Otcheretianski msecs_to_jiffies(IWL_MVM_CS_UNBLOCK_TX_TIMEOUT * 1601d3a108a4SAndrei Otcheretianski csa_vif->bss_conf.beacon_int)); 1602d3a108a4SAndrei Otcheretianski 1603d3a108a4SAndrei Otcheretianski ieee80211_csa_finish(csa_vif); 1604d3a108a4SAndrei Otcheretianski 1605d3a108a4SAndrei Otcheretianski rcu_read_unlock(); 1606d3a108a4SAndrei Otcheretianski 1607d3a108a4SAndrei Otcheretianski RCU_INIT_POINTER(mvm->csa_vif, NULL); 1608d3a108a4SAndrei Otcheretianski 1609d3a108a4SAndrei Otcheretianski return; 1610d3a108a4SAndrei Otcheretianski 1611d3a108a4SAndrei Otcheretianski out_unlock: 1612d3a108a4SAndrei Otcheretianski rcu_read_unlock(); 1613d3a108a4SAndrei Otcheretianski } 1614