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 2194d339989SLiad Kaufman if (vif->type == NL80211_IFTYPE_AP || 2204d339989SLiad Kaufman vif->type == NL80211_IFTYPE_ADHOC) 221e705c121SKalle Valo qmask |= BIT(vif->cab_queue); 222e705c121SKalle Valo 223e705c121SKalle Valo return qmask; 224e705c121SKalle Valo } 225e705c121SKalle Valo 226e705c121SKalle Valo static void iwl_mvm_iface_hw_queues_iter(void *_data, u8 *mac, 227e705c121SKalle Valo struct ieee80211_vif *vif) 228e705c121SKalle Valo { 229e705c121SKalle Valo struct iwl_mvm_hw_queues_iface_iterator_data *data = _data; 230e705c121SKalle Valo 231e705c121SKalle Valo /* exclude the given vif */ 232e705c121SKalle Valo if (vif == data->exclude_vif) 233e705c121SKalle Valo return; 234e705c121SKalle Valo 235e705c121SKalle Valo data->used_hw_queues |= iwl_mvm_mac_get_queues_mask(vif); 236e705c121SKalle Valo } 237e705c121SKalle Valo 238e705c121SKalle Valo static void iwl_mvm_mac_sta_hw_queues_iter(void *_data, 239e705c121SKalle Valo struct ieee80211_sta *sta) 240e705c121SKalle Valo { 241e705c121SKalle Valo struct iwl_mvm_hw_queues_iface_iterator_data *data = _data; 242e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 243e705c121SKalle Valo 244e705c121SKalle Valo /* Mark the queues used by the sta */ 245e705c121SKalle Valo data->used_hw_queues |= mvmsta->tfd_queue_msk; 246e705c121SKalle Valo } 247e705c121SKalle Valo 248e705c121SKalle Valo unsigned long iwl_mvm_get_used_hw_queues(struct iwl_mvm *mvm, 249e705c121SKalle Valo struct ieee80211_vif *exclude_vif) 250e705c121SKalle Valo { 251e705c121SKalle Valo u8 sta_id; 252e705c121SKalle Valo struct iwl_mvm_hw_queues_iface_iterator_data data = { 253e705c121SKalle Valo .exclude_vif = exclude_vif, 254e705c121SKalle Valo .used_hw_queues = 255e705c121SKalle Valo BIT(IWL_MVM_OFFCHANNEL_QUEUE) | 256097129c9SLiad Kaufman BIT(mvm->aux_queue), 257e705c121SKalle Valo }; 258e705c121SKalle Valo 259097129c9SLiad Kaufman if (iwl_mvm_is_dqa_supported(mvm)) 26032026e8fSJohannes Berg data.used_hw_queues |= BIT(IWL_MVM_DQA_GCAST_QUEUE); 261097129c9SLiad Kaufman else 262097129c9SLiad Kaufman data.used_hw_queues |= BIT(IWL_MVM_CMD_QUEUE); 263097129c9SLiad Kaufman 264e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 265e705c121SKalle Valo 266e705c121SKalle Valo /* mark all VIF used hw queues */ 267e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 268e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 269e705c121SKalle Valo iwl_mvm_iface_hw_queues_iter, &data); 270e705c121SKalle Valo 27132026e8fSJohannes Berg /* 27232026e8fSJohannes Berg * for DQA, the hw_queue in mac80211 is never really used for 27332026e8fSJohannes Berg * real traffic (only the few queue IDs covered above), so 27432026e8fSJohannes Berg * we can reuse the real HW queue IDs the stations use 27532026e8fSJohannes Berg */ 27632026e8fSJohannes Berg if (iwl_mvm_is_dqa_supported(mvm)) 27732026e8fSJohannes Berg return data.used_hw_queues; 27832026e8fSJohannes Berg 279e705c121SKalle Valo /* don't assign the same hw queues as TDLS stations */ 280e705c121SKalle Valo ieee80211_iterate_stations_atomic(mvm->hw, 281e705c121SKalle Valo iwl_mvm_mac_sta_hw_queues_iter, 282e705c121SKalle Valo &data); 283e705c121SKalle Valo 284e705c121SKalle Valo /* 285e705c121SKalle Valo * Some TDLS stations may be removed but are in the process of being 286e705c121SKalle Valo * drained. Don't touch their queues. 287e705c121SKalle Valo */ 288e705c121SKalle Valo for_each_set_bit(sta_id, mvm->sta_drained, IWL_MVM_STATION_COUNT) 289e705c121SKalle Valo data.used_hw_queues |= mvm->tfd_drained[sta_id]; 290e705c121SKalle Valo 291e705c121SKalle Valo return data.used_hw_queues; 292e705c121SKalle Valo } 293e705c121SKalle Valo 294e705c121SKalle Valo static void iwl_mvm_mac_iface_iterator(void *_data, u8 *mac, 295e705c121SKalle Valo struct ieee80211_vif *vif) 296e705c121SKalle Valo { 297e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data *data = _data; 298e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 299e705c121SKalle Valo 300e705c121SKalle Valo /* Iterator may already find the interface being added -- skip it */ 301e705c121SKalle Valo if (vif == data->vif) { 302e705c121SKalle Valo data->found_vif = true; 303e705c121SKalle Valo return; 304e705c121SKalle Valo } 305e705c121SKalle Valo 306e705c121SKalle Valo /* Mark MAC IDs as used by clearing the available bit, and 307e705c121SKalle Valo * (below) mark TSFs as used if their existing use is not 308e705c121SKalle Valo * compatible with the new interface type. 309e705c121SKalle Valo * No locking or atomic bit operations are needed since the 310e705c121SKalle Valo * data is on the stack of the caller function. 311e705c121SKalle Valo */ 312e705c121SKalle Valo __clear_bit(mvmvif->id, data->available_mac_ids); 313e705c121SKalle Valo 314e705c121SKalle Valo /* find a suitable tsf_id */ 315e705c121SKalle Valo iwl_mvm_mac_tsf_id_iter(_data, mac, vif); 316e705c121SKalle Valo } 317e705c121SKalle Valo 318e705c121SKalle Valo void iwl_mvm_mac_ctxt_recalc_tsf_id(struct iwl_mvm *mvm, 319e705c121SKalle Valo struct ieee80211_vif *vif) 320e705c121SKalle Valo { 321e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 322e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data data = { 323e705c121SKalle Valo .mvm = mvm, 324e705c121SKalle Valo .vif = vif, 325e705c121SKalle Valo .available_tsf_ids = { (1 << NUM_TSF_IDS) - 1 }, 326e705c121SKalle Valo /* no preference yet */ 327e705c121SKalle Valo .preferred_tsf = NUM_TSF_IDS, 328e705c121SKalle Valo }; 329e705c121SKalle Valo 330e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 331e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 332e705c121SKalle Valo iwl_mvm_mac_tsf_id_iter, &data); 333e705c121SKalle Valo 334e705c121SKalle Valo if (data.preferred_tsf != NUM_TSF_IDS) 335e705c121SKalle Valo mvmvif->tsf_id = data.preferred_tsf; 336e705c121SKalle Valo else if (!test_bit(mvmvif->tsf_id, data.available_tsf_ids)) 337e705c121SKalle Valo mvmvif->tsf_id = find_first_bit(data.available_tsf_ids, 338e705c121SKalle Valo NUM_TSF_IDS); 339e705c121SKalle Valo } 340e705c121SKalle Valo 341e705c121SKalle Valo static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm, 342e705c121SKalle Valo struct ieee80211_vif *vif) 343e705c121SKalle Valo { 344e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 345e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data data = { 346e705c121SKalle Valo .mvm = mvm, 347e705c121SKalle Valo .vif = vif, 348e705c121SKalle Valo .available_mac_ids = { (1 << NUM_MAC_INDEX_DRIVER) - 1 }, 349e705c121SKalle Valo .available_tsf_ids = { (1 << NUM_TSF_IDS) - 1 }, 350e705c121SKalle Valo /* no preference yet */ 351e705c121SKalle Valo .preferred_tsf = NUM_TSF_IDS, 352e705c121SKalle Valo .found_vif = false, 353e705c121SKalle Valo }; 354e705c121SKalle Valo u32 ac; 35532026e8fSJohannes Berg int ret, i, queue_limit; 356e705c121SKalle Valo unsigned long used_hw_queues; 357e705c121SKalle Valo 358e705c121SKalle Valo /* 359e705c121SKalle Valo * Allocate a MAC ID and a TSF for this MAC, along with the queues 360e705c121SKalle Valo * and other resources. 361e705c121SKalle Valo */ 362e705c121SKalle Valo 363e705c121SKalle Valo /* 364e705c121SKalle Valo * Before the iterator, we start with all MAC IDs and TSFs available. 365e705c121SKalle Valo * 366e705c121SKalle Valo * During iteration, all MAC IDs are cleared that are in use by other 367e705c121SKalle Valo * virtual interfaces, and all TSF IDs are cleared that can't be used 368e705c121SKalle Valo * by this new virtual interface because they're used by an interface 369e705c121SKalle Valo * that can't share it with the new one. 370e705c121SKalle Valo * At the same time, we check if there's a preferred TSF in the case 371e705c121SKalle Valo * that we should share it with another interface. 372e705c121SKalle Valo */ 373e705c121SKalle Valo 374e705c121SKalle Valo /* Currently, MAC ID 0 should be used only for the managed/IBSS vif */ 375e705c121SKalle Valo switch (vif->type) { 376e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 377e705c121SKalle Valo break; 378e705c121SKalle Valo case NL80211_IFTYPE_STATION: 379e705c121SKalle Valo if (!vif->p2p) 380e705c121SKalle Valo break; 381e705c121SKalle Valo /* fall through */ 382e705c121SKalle Valo default: 383e705c121SKalle Valo __clear_bit(0, data.available_mac_ids); 384e705c121SKalle Valo } 385e705c121SKalle Valo 386e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 387e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 388e705c121SKalle Valo iwl_mvm_mac_iface_iterator, &data); 389e705c121SKalle Valo 390e705c121SKalle Valo used_hw_queues = iwl_mvm_get_used_hw_queues(mvm, vif); 391e705c121SKalle Valo 392e705c121SKalle Valo /* 393e705c121SKalle Valo * In the case we're getting here during resume, it's similar to 394e705c121SKalle Valo * firmware restart, and with RESUME_ALL the iterator will find 395e705c121SKalle Valo * the vif being added already. 396e705c121SKalle Valo * We don't want to reassign any IDs in either case since doing 397e705c121SKalle Valo * so would probably assign different IDs (as interfaces aren't 398e705c121SKalle Valo * necessarily added in the same order), but the old IDs were 399e705c121SKalle Valo * preserved anyway, so skip ID assignment for both resume and 400e705c121SKalle Valo * recovery. 401e705c121SKalle Valo */ 402e705c121SKalle Valo if (data.found_vif) 403e705c121SKalle Valo return 0; 404e705c121SKalle Valo 405e705c121SKalle Valo /* Therefore, in recovery, we can't get here */ 406e705c121SKalle Valo if (WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))) 407e705c121SKalle Valo return -EBUSY; 408e705c121SKalle Valo 409e705c121SKalle Valo mvmvif->id = find_first_bit(data.available_mac_ids, 410e705c121SKalle Valo NUM_MAC_INDEX_DRIVER); 411e705c121SKalle Valo if (mvmvif->id == NUM_MAC_INDEX_DRIVER) { 412e705c121SKalle Valo IWL_ERR(mvm, "Failed to init MAC context - no free ID!\n"); 413e705c121SKalle Valo ret = -EIO; 414e705c121SKalle Valo goto exit_fail; 415e705c121SKalle Valo } 416e705c121SKalle Valo 417e705c121SKalle Valo if (data.preferred_tsf != NUM_TSF_IDS) 418e705c121SKalle Valo mvmvif->tsf_id = data.preferred_tsf; 419e705c121SKalle Valo else 420e705c121SKalle Valo mvmvif->tsf_id = find_first_bit(data.available_tsf_ids, 421e705c121SKalle Valo NUM_TSF_IDS); 422e705c121SKalle Valo if (mvmvif->tsf_id == NUM_TSF_IDS) { 423e705c121SKalle Valo IWL_ERR(mvm, "Failed to init MAC context - no free TSF!\n"); 424e705c121SKalle Valo ret = -EIO; 425e705c121SKalle Valo goto exit_fail; 426e705c121SKalle Valo } 427e705c121SKalle Valo 428e705c121SKalle Valo mvmvif->color = 0; 429e705c121SKalle Valo 430e705c121SKalle Valo INIT_LIST_HEAD(&mvmvif->time_event_data.list); 431e705c121SKalle Valo mvmvif->time_event_data.id = TE_MAX; 432e705c121SKalle Valo 433e705c121SKalle Valo /* No need to allocate data queues to P2P Device MAC.*/ 434e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 435e705c121SKalle Valo for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 436e705c121SKalle Valo vif->hw_queue[ac] = IEEE80211_INVAL_HW_QUEUE; 437e705c121SKalle Valo 438e705c121SKalle Valo return 0; 439e705c121SKalle Valo } 440e705c121SKalle Valo 44132026e8fSJohannes Berg if (iwl_mvm_is_dqa_supported(mvm)) { 44232026e8fSJohannes Berg /* 44332026e8fSJohannes Berg * queues in mac80211 almost entirely independent of 44432026e8fSJohannes Berg * the ones here - no real limit 44532026e8fSJohannes Berg */ 44632026e8fSJohannes Berg queue_limit = IEEE80211_MAX_QUEUES; 44732026e8fSJohannes Berg BUILD_BUG_ON(IEEE80211_MAX_QUEUES > 44832026e8fSJohannes Berg BITS_PER_BYTE * 44932026e8fSJohannes Berg sizeof(mvm->hw_queue_to_mac80211[0])); 45032026e8fSJohannes Berg } else { 45132026e8fSJohannes Berg /* need to not use too many in this case */ 45232026e8fSJohannes Berg queue_limit = mvm->first_agg_queue; 45332026e8fSJohannes Berg } 45432026e8fSJohannes Berg 45524afba76SLiad Kaufman /* 45624afba76SLiad Kaufman * Find available queues, and allocate them to the ACs. When in 45724afba76SLiad Kaufman * DQA-mode they aren't really used, and this is done only so the 45824afba76SLiad Kaufman * mac80211 ieee80211_check_queues() function won't fail 45924afba76SLiad Kaufman */ 460e705c121SKalle Valo for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 46132026e8fSJohannes Berg u8 queue = find_first_zero_bit(&used_hw_queues, queue_limit); 462e705c121SKalle Valo 46332026e8fSJohannes Berg if (queue >= queue_limit) { 464e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate queue\n"); 465e705c121SKalle Valo ret = -EIO; 466e705c121SKalle Valo goto exit_fail; 467e705c121SKalle Valo } 468e705c121SKalle Valo 469e705c121SKalle Valo __set_bit(queue, &used_hw_queues); 470e705c121SKalle Valo vif->hw_queue[ac] = queue; 471e705c121SKalle Valo } 472e705c121SKalle Valo 473e705c121SKalle Valo /* Allocate the CAB queue for softAP and GO interfaces */ 474e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP) { 4750e0e4420SLiad Kaufman u8 queue; 4760e0e4420SLiad Kaufman 4770e0e4420SLiad Kaufman if (!iwl_mvm_is_dqa_supported(mvm)) { 4780e0e4420SLiad Kaufman queue = find_first_zero_bit(&used_hw_queues, 479e705c121SKalle Valo mvm->first_agg_queue); 480e705c121SKalle Valo 481e705c121SKalle Valo if (queue >= mvm->first_agg_queue) { 482e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate cab queue\n"); 483e705c121SKalle Valo ret = -EIO; 484e705c121SKalle Valo goto exit_fail; 485e705c121SKalle Valo } 4860e0e4420SLiad Kaufman } else { 4870e0e4420SLiad Kaufman queue = IWL_MVM_DQA_GCAST_QUEUE; 4880e0e4420SLiad Kaufman } 489e705c121SKalle Valo 490e2af3fabSSara Sharon /* 491e2af3fabSSara Sharon * For TVQM this will be overwritten later with the FW assigned 492e2af3fabSSara Sharon * queue value (when queue is enabled). 493e2af3fabSSara Sharon */ 494e2af3fabSSara Sharon mvmvif->cab_queue = queue; 495e705c121SKalle Valo vif->cab_queue = queue; 496e705c121SKalle Valo } else { 497e705c121SKalle Valo vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 498e705c121SKalle Valo } 499e705c121SKalle Valo 5000ae98812SSara Sharon mvmvif->bcast_sta.sta_id = IWL_MVM_INVALID_STA; 5010ae98812SSara Sharon mvmvif->mcast_sta.sta_id = IWL_MVM_INVALID_STA; 5020ae98812SSara Sharon mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 503e705c121SKalle Valo 504e705c121SKalle Valo for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) 505e705c121SKalle Valo mvmvif->smps_requests[i] = IEEE80211_SMPS_AUTOMATIC; 506e705c121SKalle Valo 507e705c121SKalle Valo return 0; 508e705c121SKalle Valo 509e705c121SKalle Valo exit_fail: 510e705c121SKalle Valo memset(mvmvif, 0, sizeof(struct iwl_mvm_vif)); 511e705c121SKalle Valo memset(vif->hw_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(vif->hw_queue)); 512e705c121SKalle Valo vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 513e705c121SKalle Valo return ret; 514e705c121SKalle Valo } 515e705c121SKalle Valo 516e705c121SKalle Valo int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 517e705c121SKalle Valo { 518e705c121SKalle Valo unsigned int wdg_timeout = 519e705c121SKalle Valo iwl_mvm_get_wd_timeout(mvm, vif, false, false); 520e705c121SKalle Valo u32 ac; 521e705c121SKalle Valo int ret; 522e705c121SKalle Valo 523e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 524e705c121SKalle Valo 525e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_allocate_resources(mvm, vif); 526e705c121SKalle Valo if (ret) 527e705c121SKalle Valo return ret; 528e705c121SKalle Valo 5298236f7dbSSara Sharon /* If DQA is supported - queues will be enabled when needed */ 5308236f7dbSSara Sharon if (iwl_mvm_is_dqa_supported(mvm)) 5318236f7dbSSara Sharon return 0; 5328236f7dbSSara Sharon 533e705c121SKalle Valo switch (vif->type) { 534e705c121SKalle Valo case NL80211_IFTYPE_P2P_DEVICE: 535e705c121SKalle Valo iwl_mvm_enable_ac_txq(mvm, IWL_MVM_OFFCHANNEL_QUEUE, 536e705c121SKalle Valo IWL_MVM_OFFCHANNEL_QUEUE, 5378236f7dbSSara Sharon IWL_MVM_TX_FIFO_VO, 0, wdg_timeout); 538e705c121SKalle Valo break; 539e705c121SKalle Valo case NL80211_IFTYPE_AP: 540e705c121SKalle Valo iwl_mvm_enable_ac_txq(mvm, vif->cab_queue, vif->cab_queue, 541e705c121SKalle Valo IWL_MVM_TX_FIFO_MCAST, 0, wdg_timeout); 542e705c121SKalle Valo /* fall through */ 543e705c121SKalle Valo default: 544e705c121SKalle Valo for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 545e705c121SKalle Valo iwl_mvm_enable_ac_txq(mvm, vif->hw_queue[ac], 546e705c121SKalle Valo vif->hw_queue[ac], 547e705c121SKalle Valo iwl_mvm_ac_to_tx_fifo[ac], 0, 548e705c121SKalle Valo wdg_timeout); 549e705c121SKalle Valo break; 550e705c121SKalle Valo } 551e705c121SKalle Valo 552e705c121SKalle Valo return 0; 553e705c121SKalle Valo } 554e705c121SKalle Valo 555e705c121SKalle Valo void iwl_mvm_mac_ctxt_release(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 556e705c121SKalle Valo { 557e705c121SKalle Valo int ac; 558e705c121SKalle Valo 559e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 560e705c121SKalle Valo 56124afba76SLiad Kaufman /* 56224afba76SLiad Kaufman * If DQA is supported - queues were already disabled, since in 56324afba76SLiad Kaufman * DQA-mode the queues are a property of the STA and not of the 56424afba76SLiad Kaufman * vif, and at this point the STA was already deleted 56524afba76SLiad Kaufman */ 56624afba76SLiad Kaufman if (iwl_mvm_is_dqa_supported(mvm)) 567df88c08dSLiad Kaufman return; 56824afba76SLiad Kaufman 569df88c08dSLiad Kaufman switch (vif->type) { 570df88c08dSLiad Kaufman case NL80211_IFTYPE_P2P_DEVICE: 571df88c08dSLiad Kaufman iwl_mvm_disable_txq(mvm, IWL_MVM_OFFCHANNEL_QUEUE, 572df88c08dSLiad Kaufman IWL_MVM_OFFCHANNEL_QUEUE, 573df88c08dSLiad Kaufman IWL_MAX_TID_COUNT, 0); 574df88c08dSLiad Kaufman 575df88c08dSLiad Kaufman break; 576df88c08dSLiad Kaufman case NL80211_IFTYPE_AP: 577df88c08dSLiad Kaufman iwl_mvm_disable_txq(mvm, vif->cab_queue, vif->cab_queue, 578df88c08dSLiad Kaufman IWL_MAX_TID_COUNT, 0); 579df88c08dSLiad Kaufman /* fall through */ 580df88c08dSLiad Kaufman default: 581e705c121SKalle Valo for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 582e705c121SKalle Valo iwl_mvm_disable_txq(mvm, vif->hw_queue[ac], 583e705c121SKalle Valo vif->hw_queue[ac], 584e705c121SKalle Valo IWL_MAX_TID_COUNT, 0); 585e705c121SKalle Valo } 586e705c121SKalle Valo } 587e705c121SKalle Valo 588e705c121SKalle Valo static void iwl_mvm_ack_rates(struct iwl_mvm *mvm, 589e705c121SKalle Valo struct ieee80211_vif *vif, 59057fbcce3SJohannes Berg enum nl80211_band band, 591e705c121SKalle Valo u8 *cck_rates, u8 *ofdm_rates) 592e705c121SKalle Valo { 593e705c121SKalle Valo struct ieee80211_supported_band *sband; 594e705c121SKalle Valo unsigned long basic = vif->bss_conf.basic_rates; 595e705c121SKalle Valo int lowest_present_ofdm = 100; 596e705c121SKalle Valo int lowest_present_cck = 100; 597e705c121SKalle Valo u8 cck = 0; 598e705c121SKalle Valo u8 ofdm = 0; 599e705c121SKalle Valo int i; 600e705c121SKalle Valo 601e705c121SKalle Valo sband = mvm->hw->wiphy->bands[band]; 602e705c121SKalle Valo 603e705c121SKalle Valo for_each_set_bit(i, &basic, BITS_PER_LONG) { 604e705c121SKalle Valo int hw = sband->bitrates[i].hw_value; 605e705c121SKalle Valo if (hw >= IWL_FIRST_OFDM_RATE) { 606e705c121SKalle Valo ofdm |= BIT(hw - IWL_FIRST_OFDM_RATE); 607e705c121SKalle Valo if (lowest_present_ofdm > hw) 608e705c121SKalle Valo lowest_present_ofdm = hw; 609e705c121SKalle Valo } else { 610e705c121SKalle Valo BUILD_BUG_ON(IWL_FIRST_CCK_RATE != 0); 611e705c121SKalle Valo 612e705c121SKalle Valo cck |= BIT(hw); 613e705c121SKalle Valo if (lowest_present_cck > hw) 614e705c121SKalle Valo lowest_present_cck = hw; 615e705c121SKalle Valo } 616e705c121SKalle Valo } 617e705c121SKalle Valo 618e705c121SKalle Valo /* 619e705c121SKalle Valo * Now we've got the basic rates as bitmaps in the ofdm and cck 620e705c121SKalle Valo * variables. This isn't sufficient though, as there might not 621e705c121SKalle Valo * be all the right rates in the bitmap. E.g. if the only basic 622e705c121SKalle Valo * rates are 5.5 Mbps and 11 Mbps, we still need to add 1 Mbps 623e705c121SKalle Valo * and 6 Mbps because the 802.11-2007 standard says in 9.6: 624e705c121SKalle Valo * 625e705c121SKalle Valo * [...] a STA responding to a received frame shall transmit 626e705c121SKalle Valo * its Control Response frame [...] at the highest rate in the 627e705c121SKalle Valo * BSSBasicRateSet parameter that is less than or equal to the 628e705c121SKalle Valo * rate of the immediately previous frame in the frame exchange 629e705c121SKalle Valo * sequence ([...]) and that is of the same modulation class 630e705c121SKalle Valo * ([...]) as the received frame. If no rate contained in the 631e705c121SKalle Valo * BSSBasicRateSet parameter meets these conditions, then the 632e705c121SKalle Valo * control frame sent in response to a received frame shall be 633e705c121SKalle Valo * transmitted at the highest mandatory rate of the PHY that is 634e705c121SKalle Valo * less than or equal to the rate of the received frame, and 635e705c121SKalle Valo * that is of the same modulation class as the received frame. 636e705c121SKalle Valo * 637e705c121SKalle Valo * As a consequence, we need to add all mandatory rates that are 638e705c121SKalle Valo * lower than all of the basic rates to these bitmaps. 639e705c121SKalle Valo */ 640e705c121SKalle Valo 641e705c121SKalle Valo if (IWL_RATE_24M_INDEX < lowest_present_ofdm) 642e705c121SKalle Valo ofdm |= IWL_RATE_BIT_MSK(24) >> IWL_FIRST_OFDM_RATE; 643e705c121SKalle Valo if (IWL_RATE_12M_INDEX < lowest_present_ofdm) 644e705c121SKalle Valo ofdm |= IWL_RATE_BIT_MSK(12) >> IWL_FIRST_OFDM_RATE; 645e705c121SKalle Valo /* 6M already there or needed so always add */ 646e705c121SKalle Valo ofdm |= IWL_RATE_BIT_MSK(6) >> IWL_FIRST_OFDM_RATE; 647e705c121SKalle Valo 648e705c121SKalle Valo /* 649e705c121SKalle Valo * CCK is a bit more complex with DSSS vs. HR/DSSS vs. ERP. 650e705c121SKalle Valo * Note, however: 651e705c121SKalle Valo * - if no CCK rates are basic, it must be ERP since there must 652e705c121SKalle Valo * be some basic rates at all, so they're OFDM => ERP PHY 653e705c121SKalle Valo * (or we're in 5 GHz, and the cck bitmap will never be used) 654e705c121SKalle Valo * - if 11M is a basic rate, it must be ERP as well, so add 5.5M 655e705c121SKalle Valo * - if 5.5M is basic, 1M and 2M are mandatory 656e705c121SKalle Valo * - if 2M is basic, 1M is mandatory 657e705c121SKalle Valo * - if 1M is basic, that's the only valid ACK rate. 658e705c121SKalle Valo * As a consequence, it's not as complicated as it sounds, just add 659e705c121SKalle Valo * any lower rates to the ACK rate bitmap. 660e705c121SKalle Valo */ 661e705c121SKalle Valo if (IWL_RATE_11M_INDEX < lowest_present_cck) 662e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(11) >> IWL_FIRST_CCK_RATE; 663e705c121SKalle Valo if (IWL_RATE_5M_INDEX < lowest_present_cck) 664e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(5) >> IWL_FIRST_CCK_RATE; 665e705c121SKalle Valo if (IWL_RATE_2M_INDEX < lowest_present_cck) 666e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(2) >> IWL_FIRST_CCK_RATE; 667e705c121SKalle Valo /* 1M already there or needed so always add */ 668e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(1) >> IWL_FIRST_CCK_RATE; 669e705c121SKalle Valo 670e705c121SKalle Valo *cck_rates = cck; 671e705c121SKalle Valo *ofdm_rates = ofdm; 672e705c121SKalle Valo } 673e705c121SKalle Valo 674e705c121SKalle Valo static void iwl_mvm_mac_ctxt_set_ht_flags(struct iwl_mvm *mvm, 675e705c121SKalle Valo struct ieee80211_vif *vif, 676e705c121SKalle Valo struct iwl_mac_ctx_cmd *cmd) 677e705c121SKalle Valo { 678e705c121SKalle Valo /* for both sta and ap, ht_operation_mode hold the protection_mode */ 679e705c121SKalle Valo u8 protection_mode = vif->bss_conf.ht_operation_mode & 680e705c121SKalle Valo IEEE80211_HT_OP_MODE_PROTECTION; 681e705c121SKalle Valo /* The fw does not distinguish between ht and fat */ 682e705c121SKalle Valo u32 ht_flag = MAC_PROT_FLG_HT_PROT | MAC_PROT_FLG_FAT_PROT; 683e705c121SKalle Valo 684e705c121SKalle Valo IWL_DEBUG_RATE(mvm, "protection mode set to %d\n", protection_mode); 685e705c121SKalle Valo /* 686e705c121SKalle Valo * See section 9.23.3.1 of IEEE 80211-2012. 687e705c121SKalle Valo * Nongreenfield HT STAs Present is not supported. 688e705c121SKalle Valo */ 689e705c121SKalle Valo switch (protection_mode) { 690e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_NONE: 691e705c121SKalle Valo break; 692e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER: 693e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: 694e705c121SKalle Valo cmd->protection_flags |= cpu_to_le32(ht_flag); 695e705c121SKalle Valo break; 696e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: 697e705c121SKalle Valo /* Protect when channel wider than 20MHz */ 698e705c121SKalle Valo if (vif->bss_conf.chandef.width > NL80211_CHAN_WIDTH_20) 699e705c121SKalle Valo cmd->protection_flags |= cpu_to_le32(ht_flag); 700e705c121SKalle Valo break; 701e705c121SKalle Valo default: 702e705c121SKalle Valo IWL_ERR(mvm, "Illegal protection mode %d\n", 703e705c121SKalle Valo protection_mode); 704e705c121SKalle Valo break; 705e705c121SKalle Valo } 706e705c121SKalle Valo } 707e705c121SKalle Valo 708e705c121SKalle Valo static void iwl_mvm_mac_ctxt_cmd_common(struct iwl_mvm *mvm, 709e705c121SKalle Valo struct ieee80211_vif *vif, 710e705c121SKalle Valo struct iwl_mac_ctx_cmd *cmd, 711e705c121SKalle Valo const u8 *bssid_override, 712e705c121SKalle Valo u32 action) 713e705c121SKalle Valo { 714e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 715e705c121SKalle Valo struct ieee80211_chanctx_conf *chanctx; 716e705c121SKalle Valo bool ht_enabled = !!(vif->bss_conf.ht_operation_mode & 717e705c121SKalle Valo IEEE80211_HT_OP_MODE_PROTECTION); 718e705c121SKalle Valo u8 cck_ack_rates, ofdm_ack_rates; 719e705c121SKalle Valo const u8 *bssid = bssid_override ?: vif->bss_conf.bssid; 720e705c121SKalle Valo int i; 721e705c121SKalle Valo 722e705c121SKalle Valo cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 723e705c121SKalle Valo mvmvif->color)); 724e705c121SKalle Valo cmd->action = cpu_to_le32(action); 725e705c121SKalle Valo 726e705c121SKalle Valo switch (vif->type) { 727e705c121SKalle Valo case NL80211_IFTYPE_STATION: 728e705c121SKalle Valo if (vif->p2p) 729e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_P2P_STA); 730e705c121SKalle Valo else 731e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_BSS_STA); 732e705c121SKalle Valo break; 733e705c121SKalle Valo case NL80211_IFTYPE_AP: 734e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_GO); 735e705c121SKalle Valo break; 736e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 737e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_LISTENER); 738e705c121SKalle Valo break; 739e705c121SKalle Valo case NL80211_IFTYPE_P2P_DEVICE: 740e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_P2P_DEVICE); 741e705c121SKalle Valo break; 742e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 743e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_IBSS); 744e705c121SKalle Valo break; 745e705c121SKalle Valo default: 746e705c121SKalle Valo WARN_ON_ONCE(1); 747e705c121SKalle Valo } 748e705c121SKalle Valo 749e705c121SKalle Valo cmd->tsf_id = cpu_to_le32(mvmvif->tsf_id); 750e705c121SKalle Valo 751e705c121SKalle Valo memcpy(cmd->node_addr, vif->addr, ETH_ALEN); 752e705c121SKalle Valo 753e705c121SKalle Valo if (bssid) 754e705c121SKalle Valo memcpy(cmd->bssid_addr, bssid, ETH_ALEN); 755e705c121SKalle Valo else 756e705c121SKalle Valo eth_broadcast_addr(cmd->bssid_addr); 757e705c121SKalle Valo 758e705c121SKalle Valo rcu_read_lock(); 759e705c121SKalle Valo chanctx = rcu_dereference(vif->chanctx_conf); 760e705c121SKalle Valo iwl_mvm_ack_rates(mvm, vif, chanctx ? chanctx->def.chan->band 76157fbcce3SJohannes Berg : NL80211_BAND_2GHZ, 762e705c121SKalle Valo &cck_ack_rates, &ofdm_ack_rates); 763e705c121SKalle Valo rcu_read_unlock(); 764e705c121SKalle Valo 765e705c121SKalle Valo cmd->cck_rates = cpu_to_le32((u32)cck_ack_rates); 766e705c121SKalle Valo cmd->ofdm_rates = cpu_to_le32((u32)ofdm_ack_rates); 767e705c121SKalle Valo 768e705c121SKalle Valo cmd->cck_short_preamble = 769e705c121SKalle Valo cpu_to_le32(vif->bss_conf.use_short_preamble ? 770e705c121SKalle Valo MAC_FLG_SHORT_PREAMBLE : 0); 771e705c121SKalle Valo cmd->short_slot = 772e705c121SKalle Valo cpu_to_le32(vif->bss_conf.use_short_slot ? 773e705c121SKalle Valo MAC_FLG_SHORT_SLOT : 0); 774e705c121SKalle Valo 775bd6f5bd7SAyala Beker cmd->filter_flags = cpu_to_le32(MAC_FILTER_ACCEPT_GRP); 776bd6f5bd7SAyala Beker 777e705c121SKalle Valo for (i = 0; i < IEEE80211_NUM_ACS; i++) { 778e705c121SKalle Valo u8 txf = iwl_mvm_ac_to_tx_fifo[i]; 779e705c121SKalle Valo 780e705c121SKalle Valo cmd->ac[txf].cw_min = 781e705c121SKalle Valo cpu_to_le16(mvmvif->queue_params[i].cw_min); 782e705c121SKalle Valo cmd->ac[txf].cw_max = 783e705c121SKalle Valo cpu_to_le16(mvmvif->queue_params[i].cw_max); 784e705c121SKalle Valo cmd->ac[txf].edca_txop = 785e705c121SKalle Valo cpu_to_le16(mvmvif->queue_params[i].txop * 32); 786e705c121SKalle Valo cmd->ac[txf].aifsn = mvmvif->queue_params[i].aifs; 787e705c121SKalle Valo cmd->ac[txf].fifos_mask = BIT(txf); 788e705c121SKalle Valo } 789e705c121SKalle Valo 790e705c121SKalle Valo if (vif->bss_conf.qos) 791e705c121SKalle Valo cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_UPDATE_EDCA); 792e705c121SKalle Valo 793e705c121SKalle Valo if (vif->bss_conf.use_cts_prot) 794e705c121SKalle Valo cmd->protection_flags |= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT); 795e705c121SKalle Valo 796e705c121SKalle Valo IWL_DEBUG_RATE(mvm, "use_cts_prot %d, ht_operation_mode %d\n", 797e705c121SKalle Valo vif->bss_conf.use_cts_prot, 798e705c121SKalle Valo vif->bss_conf.ht_operation_mode); 799e705c121SKalle Valo if (vif->bss_conf.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) 800e705c121SKalle Valo cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_TGN); 801e705c121SKalle Valo if (ht_enabled) 802e705c121SKalle Valo iwl_mvm_mac_ctxt_set_ht_flags(mvm, vif, cmd); 803e705c121SKalle Valo } 804e705c121SKalle Valo 805e705c121SKalle Valo static int iwl_mvm_mac_ctxt_send_cmd(struct iwl_mvm *mvm, 806e705c121SKalle Valo struct iwl_mac_ctx_cmd *cmd) 807e705c121SKalle Valo { 808e705c121SKalle Valo int ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, 0, 809e705c121SKalle Valo sizeof(*cmd), cmd); 810e705c121SKalle Valo if (ret) 811e705c121SKalle Valo IWL_ERR(mvm, "Failed to send MAC context (action:%d): %d\n", 812e705c121SKalle Valo le32_to_cpu(cmd->action), ret); 813e705c121SKalle Valo return ret; 814e705c121SKalle Valo } 815e705c121SKalle Valo 816e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_sta(struct iwl_mvm *mvm, 817e705c121SKalle Valo struct ieee80211_vif *vif, 818e705c121SKalle Valo u32 action, bool force_assoc_off, 819e705c121SKalle Valo const u8 *bssid_override) 820e705c121SKalle Valo { 821e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 822e705c121SKalle Valo struct iwl_mac_data_sta *ctxt_sta; 823e705c121SKalle Valo 824e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_STATION); 825e705c121SKalle Valo 826e705c121SKalle Valo /* Fill the common data for all mac context types */ 827e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, bssid_override, action); 828e705c121SKalle Valo 829e705c121SKalle Valo if (vif->p2p) { 830e705c121SKalle Valo struct ieee80211_p2p_noa_attr *noa = 831e705c121SKalle Valo &vif->bss_conf.p2p_noa_attr; 832e705c121SKalle Valo 833e705c121SKalle Valo cmd.p2p_sta.ctwin = cpu_to_le32(noa->oppps_ctwindow & 834e705c121SKalle Valo IEEE80211_P2P_OPPPS_CTWINDOW_MASK); 835e705c121SKalle Valo ctxt_sta = &cmd.p2p_sta.sta; 836e705c121SKalle Valo } else { 837e705c121SKalle Valo ctxt_sta = &cmd.sta; 838e705c121SKalle Valo } 839e705c121SKalle Valo 840e705c121SKalle Valo /* We need the dtim_period to set the MAC as associated */ 841e705c121SKalle Valo if (vif->bss_conf.assoc && vif->bss_conf.dtim_period && 842e705c121SKalle Valo !force_assoc_off) { 843e705c121SKalle Valo u32 dtim_offs; 844e705c121SKalle Valo 845e705c121SKalle Valo /* 846e705c121SKalle Valo * The DTIM count counts down, so when it is N that means N 847e705c121SKalle Valo * more beacon intervals happen until the DTIM TBTT. Therefore 848e705c121SKalle Valo * add this to the current time. If that ends up being in the 849e705c121SKalle Valo * future, the firmware will handle it. 850e705c121SKalle Valo * 851e705c121SKalle Valo * Also note that the system_timestamp (which we get here as 852e705c121SKalle Valo * "sync_device_ts") and TSF timestamp aren't at exactly the 853e705c121SKalle Valo * same offset in the frame -- the TSF is at the first symbol 854e705c121SKalle Valo * of the TSF, the system timestamp is at signal acquisition 855e705c121SKalle Valo * time. This means there's an offset between them of at most 856e705c121SKalle Valo * a few hundred microseconds (24 * 8 bits + PLCP time gives 857e705c121SKalle Valo * 384us in the longest case), this is currently not relevant 858e705c121SKalle Valo * as the firmware wakes up around 2ms before the TBTT. 859e705c121SKalle Valo */ 860e705c121SKalle Valo dtim_offs = vif->bss_conf.sync_dtim_count * 861e705c121SKalle Valo vif->bss_conf.beacon_int; 862e705c121SKalle Valo /* convert TU to usecs */ 863e705c121SKalle Valo dtim_offs *= 1024; 864e705c121SKalle Valo 865e705c121SKalle Valo ctxt_sta->dtim_tsf = 866e705c121SKalle Valo cpu_to_le64(vif->bss_conf.sync_tsf + dtim_offs); 867e705c121SKalle Valo ctxt_sta->dtim_time = 868e705c121SKalle Valo cpu_to_le32(vif->bss_conf.sync_device_ts + dtim_offs); 869b5669727SAvraham Stern ctxt_sta->assoc_beacon_arrive_time = 870b5669727SAvraham Stern cpu_to_le32(vif->bss_conf.sync_device_ts); 871e705c121SKalle Valo 872e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "DTIM TBTT is 0x%llx/0x%x, offset %d\n", 873e705c121SKalle Valo le64_to_cpu(ctxt_sta->dtim_tsf), 874e705c121SKalle Valo le32_to_cpu(ctxt_sta->dtim_time), 875e705c121SKalle Valo dtim_offs); 876e705c121SKalle Valo 877e705c121SKalle Valo ctxt_sta->is_assoc = cpu_to_le32(1); 878e705c121SKalle Valo } else { 879e705c121SKalle Valo ctxt_sta->is_assoc = cpu_to_le32(0); 880e705c121SKalle Valo 881e705c121SKalle Valo /* Allow beacons to pass through as long as we are not 882e705c121SKalle Valo * associated, or we do not have dtim period information. 883e705c121SKalle Valo */ 884e705c121SKalle Valo cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); 885e705c121SKalle Valo } 886e705c121SKalle Valo 887e705c121SKalle Valo ctxt_sta->bi = cpu_to_le32(vif->bss_conf.beacon_int); 888e705c121SKalle Valo ctxt_sta->bi_reciprocal = 889e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int)); 890e705c121SKalle Valo ctxt_sta->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int * 891e705c121SKalle Valo vif->bss_conf.dtim_period); 892e705c121SKalle Valo ctxt_sta->dtim_reciprocal = 893e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int * 894e705c121SKalle Valo vif->bss_conf.dtim_period)); 895e705c121SKalle Valo 896e705c121SKalle Valo ctxt_sta->listen_interval = cpu_to_le32(mvm->hw->conf.listen_interval); 897e705c121SKalle Valo ctxt_sta->assoc_id = cpu_to_le32(vif->bss_conf.aid); 898e705c121SKalle Valo 899e705c121SKalle Valo if (vif->probe_req_reg && vif->bss_conf.assoc && vif->p2p) 900e705c121SKalle Valo cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); 901e705c121SKalle Valo 902e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 903e705c121SKalle Valo } 904e705c121SKalle Valo 905e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_listener(struct iwl_mvm *mvm, 906e705c121SKalle Valo struct ieee80211_vif *vif, 907e705c121SKalle Valo u32 action) 908e705c121SKalle Valo { 909e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 9100e39eb03SChaya Rachel Ivgi u32 tfd_queue_msk = 0; 9110e39eb03SChaya Rachel Ivgi int ret, i; 912e705c121SKalle Valo 913e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_MONITOR); 914e705c121SKalle Valo 915e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 916e705c121SKalle Valo 917737847aaSLiad Kaufman if (!iwl_mvm_is_dqa_supported(mvm)) { 9180e39eb03SChaya Rachel Ivgi for (i = 0; i < IEEE80211_NUM_ACS; i++) 9190e39eb03SChaya Rachel Ivgi if (vif->hw_queue[i] != IEEE80211_INVAL_HW_QUEUE) 9200e39eb03SChaya Rachel Ivgi tfd_queue_msk |= BIT(vif->hw_queue[i]); 921737847aaSLiad Kaufman } 9220e39eb03SChaya Rachel Ivgi 923e705c121SKalle Valo cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROMISC | 924e705c121SKalle Valo MAC_FILTER_IN_CONTROL_AND_MGMT | 925e705c121SKalle Valo MAC_FILTER_IN_BEACON | 926e705c121SKalle Valo MAC_FILTER_IN_PROBE_REQUEST | 927e705c121SKalle Valo MAC_FILTER_IN_CRC32); 928e705c121SKalle Valo ieee80211_hw_set(mvm->hw, RX_INCLUDES_FCS); 929e705c121SKalle Valo 9300e39eb03SChaya Rachel Ivgi /* Allocate sniffer station */ 9310e39eb03SChaya Rachel Ivgi ret = iwl_mvm_allocate_int_sta(mvm, &mvm->snif_sta, tfd_queue_msk, 932ced19f26SSara Sharon vif->type, IWL_STA_GENERAL_PURPOSE); 9330e39eb03SChaya Rachel Ivgi if (ret) 9340e39eb03SChaya Rachel Ivgi return ret; 9350e39eb03SChaya Rachel Ivgi 936e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 937e705c121SKalle Valo } 938e705c121SKalle Valo 939e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_ibss(struct iwl_mvm *mvm, 940e705c121SKalle Valo struct ieee80211_vif *vif, 941e705c121SKalle Valo u32 action) 942e705c121SKalle Valo { 943e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 944e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 945e705c121SKalle Valo 946e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_ADHOC); 947e705c121SKalle Valo 948e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 949e705c121SKalle Valo 950e705c121SKalle Valo cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_BEACON | 951e705c121SKalle Valo MAC_FILTER_IN_PROBE_REQUEST); 952e705c121SKalle Valo 953e705c121SKalle Valo /* cmd.ibss.beacon_time/cmd.ibss.beacon_tsf are curently ignored */ 954e705c121SKalle Valo cmd.ibss.bi = cpu_to_le32(vif->bss_conf.beacon_int); 955e705c121SKalle Valo cmd.ibss.bi_reciprocal = 956e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int)); 957e705c121SKalle Valo 958e705c121SKalle Valo /* TODO: Assumes that the beacon id == mac context id */ 959e705c121SKalle Valo cmd.ibss.beacon_template = cpu_to_le32(mvmvif->id); 960e705c121SKalle Valo 961e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 962e705c121SKalle Valo } 963e705c121SKalle Valo 964e705c121SKalle Valo struct iwl_mvm_go_iterator_data { 965e705c121SKalle Valo bool go_active; 966e705c121SKalle Valo }; 967e705c121SKalle Valo 968e705c121SKalle Valo static void iwl_mvm_go_iterator(void *_data, u8 *mac, struct ieee80211_vif *vif) 969e705c121SKalle Valo { 970e705c121SKalle Valo struct iwl_mvm_go_iterator_data *data = _data; 971e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 972e705c121SKalle Valo 973e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP && vif->p2p && 974e705c121SKalle Valo mvmvif->ap_ibss_active) 975e705c121SKalle Valo data->go_active = true; 976e705c121SKalle Valo } 977e705c121SKalle Valo 978e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_p2p_device(struct iwl_mvm *mvm, 979e705c121SKalle Valo struct ieee80211_vif *vif, 980e705c121SKalle Valo u32 action) 981e705c121SKalle Valo { 982e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 983e705c121SKalle Valo struct iwl_mvm_go_iterator_data data = {}; 984e705c121SKalle Valo 985e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_P2P_DEVICE); 986e705c121SKalle Valo 987e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 988e705c121SKalle Valo 989e705c121SKalle Valo cmd.protection_flags |= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT); 990e705c121SKalle Valo 991e705c121SKalle Valo /* Override the filter flags to accept only probe requests */ 992e705c121SKalle Valo cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); 993e705c121SKalle Valo 994e705c121SKalle Valo /* 995e705c121SKalle Valo * This flag should be set to true when the P2P Device is 996e705c121SKalle Valo * discoverable and there is at least another active P2P GO. Settings 997e705c121SKalle Valo * this flag will allow the P2P Device to be discoverable on other 998e705c121SKalle Valo * channels in addition to its listen channel. 999e705c121SKalle Valo * Note that this flag should not be set in other cases as it opens the 1000e705c121SKalle Valo * Rx filters on all MAC and increases the number of interrupts. 1001e705c121SKalle Valo */ 1002e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 1003e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 1004e705c121SKalle Valo iwl_mvm_go_iterator, &data); 1005e705c121SKalle Valo 1006e705c121SKalle Valo cmd.p2p_dev.is_disc_extended = cpu_to_le32(data.go_active ? 1 : 0); 1007e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 1008e705c121SKalle Valo } 1009e705c121SKalle Valo 1010e705c121SKalle Valo static void iwl_mvm_mac_ctxt_set_tim(struct iwl_mvm *mvm, 10118364fbb4SSara Sharon __le32 *tim_index, __le32 *tim_size, 1012e705c121SKalle Valo u8 *beacon, u32 frame_size) 1013e705c121SKalle Valo { 1014e705c121SKalle Valo u32 tim_idx; 1015e705c121SKalle Valo struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon; 1016e705c121SKalle Valo 1017e705c121SKalle Valo /* The index is relative to frame start but we start looking at the 1018e705c121SKalle Valo * variable-length part of the beacon. */ 1019e705c121SKalle Valo tim_idx = mgmt->u.beacon.variable - beacon; 1020e705c121SKalle Valo 1021e705c121SKalle Valo /* Parse variable-length elements of beacon to find WLAN_EID_TIM */ 1022e705c121SKalle Valo while ((tim_idx < (frame_size - 2)) && 1023e705c121SKalle Valo (beacon[tim_idx] != WLAN_EID_TIM)) 1024e705c121SKalle Valo tim_idx += beacon[tim_idx+1] + 2; 1025e705c121SKalle Valo 1026e705c121SKalle Valo /* If TIM field was found, set variables */ 1027e705c121SKalle Valo if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) { 10288364fbb4SSara Sharon *tim_index = cpu_to_le32(tim_idx); 10298364fbb4SSara Sharon *tim_size = cpu_to_le32((u32)beacon[tim_idx + 1]); 1030e705c121SKalle Valo } else { 1031e705c121SKalle Valo IWL_WARN(mvm, "Unable to find TIM Element in beacon\n"); 1032e705c121SKalle Valo } 1033e705c121SKalle Valo } 1034e705c121SKalle Valo 1035d3a108a4SAndrei Otcheretianski static u32 iwl_mvm_find_ie_offset(u8 *beacon, u8 eid, u32 frame_size) 1036d3a108a4SAndrei Otcheretianski { 1037d3a108a4SAndrei Otcheretianski struct ieee80211_mgmt *mgmt = (void *)beacon; 1038d3a108a4SAndrei Otcheretianski const u8 *ie; 1039d3a108a4SAndrei Otcheretianski 1040d3a108a4SAndrei Otcheretianski if (WARN_ON_ONCE(frame_size <= (mgmt->u.beacon.variable - beacon))) 1041d3a108a4SAndrei Otcheretianski return 0; 1042d3a108a4SAndrei Otcheretianski 1043d3a108a4SAndrei Otcheretianski frame_size -= mgmt->u.beacon.variable - beacon; 1044d3a108a4SAndrei Otcheretianski 1045d3a108a4SAndrei Otcheretianski ie = cfg80211_find_ie(eid, mgmt->u.beacon.variable, frame_size); 1046d3a108a4SAndrei Otcheretianski if (!ie) 1047d3a108a4SAndrei Otcheretianski return 0; 1048d3a108a4SAndrei Otcheretianski 1049d3a108a4SAndrei Otcheretianski return ie - beacon; 1050d3a108a4SAndrei Otcheretianski } 1051d3a108a4SAndrei Otcheretianski 1052e705c121SKalle Valo static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm, 1053e705c121SKalle Valo struct ieee80211_vif *vif, 1054e705c121SKalle Valo struct sk_buff *beacon) 1055e705c121SKalle Valo { 1056e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1057e705c121SKalle Valo struct iwl_host_cmd cmd = { 1058e705c121SKalle Valo .id = BEACON_TEMPLATE_CMD, 1059e705c121SKalle Valo .flags = CMD_ASYNC, 1060e705c121SKalle Valo }; 1061d3a108a4SAndrei Otcheretianski union { 1062d3a108a4SAndrei Otcheretianski struct iwl_mac_beacon_cmd_v6 beacon_cmd_v6; 10638364fbb4SSara Sharon struct iwl_mac_beacon_cmd_v7 beacon_cmd; 1064d3a108a4SAndrei Otcheretianski } u = {}; 106540cbeca3SJohannes Berg struct iwl_mac_beacon_cmd beacon_cmd = {}; 1066e705c121SKalle Valo struct ieee80211_tx_info *info; 1067e705c121SKalle Valo u32 beacon_skb_len; 1068e705c121SKalle Valo u32 rate, tx_flags; 1069e705c121SKalle Valo 1070e705c121SKalle Valo if (WARN_ON(!beacon)) 1071e705c121SKalle Valo return -EINVAL; 1072e705c121SKalle Valo 1073e705c121SKalle Valo beacon_skb_len = beacon->len; 1074e705c121SKalle Valo 10758364fbb4SSara Sharon if (fw_has_capa(&mvm->fw->ucode_capa, 10768364fbb4SSara Sharon IWL_UCODE_TLV_CAPA_CSA_AND_TBTT_OFFLOAD)) { 10778364fbb4SSara Sharon u32 csa_offset, ecsa_offset; 10788364fbb4SSara Sharon 10798364fbb4SSara Sharon csa_offset = iwl_mvm_find_ie_offset(beacon->data, 10808364fbb4SSara Sharon WLAN_EID_CHANNEL_SWITCH, 10818364fbb4SSara Sharon beacon_skb_len); 10828364fbb4SSara Sharon ecsa_offset = 10838364fbb4SSara Sharon iwl_mvm_find_ie_offset(beacon->data, 10848364fbb4SSara Sharon WLAN_EID_EXT_CHANSWITCH_ANN, 10858364fbb4SSara Sharon beacon_skb_len); 10868364fbb4SSara Sharon 10878364fbb4SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) { 10888364fbb4SSara Sharon beacon_cmd.data.template_id = 10898364fbb4SSara Sharon cpu_to_le32((u32)mvmvif->id); 10908364fbb4SSara Sharon beacon_cmd.data.ecsa_offset = cpu_to_le32(ecsa_offset); 10918364fbb4SSara Sharon beacon_cmd.data.csa_offset = cpu_to_le32(csa_offset); 10928364fbb4SSara Sharon beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon_skb_len); 10938364fbb4SSara Sharon if (vif->type == NL80211_IFTYPE_AP) 10948364fbb4SSara Sharon iwl_mvm_mac_ctxt_set_tim(mvm, 10958364fbb4SSara Sharon &beacon_cmd.data.tim_idx, 10968364fbb4SSara Sharon &beacon_cmd.data.tim_size, 10978364fbb4SSara Sharon beacon->data, 10988364fbb4SSara Sharon beacon_skb_len); 10998364fbb4SSara Sharon cmd.len[0] = sizeof(beacon_cmd); 11008364fbb4SSara Sharon cmd.data[0] = &beacon_cmd; 11018364fbb4SSara Sharon goto send; 11028364fbb4SSara Sharon 11038364fbb4SSara Sharon } else { 11048364fbb4SSara Sharon u.beacon_cmd.data.ecsa_offset = 11058364fbb4SSara Sharon cpu_to_le32(ecsa_offset); 11068364fbb4SSara Sharon u.beacon_cmd.data.csa_offset = cpu_to_le32(csa_offset); 11078364fbb4SSara Sharon cmd.len[0] = sizeof(u.beacon_cmd); 11088364fbb4SSara Sharon cmd.data[0] = &u; 11098364fbb4SSara Sharon } 11108364fbb4SSara Sharon } else { 11118364fbb4SSara Sharon cmd.len[0] = sizeof(u.beacon_cmd_v6); 11128364fbb4SSara Sharon cmd.data[0] = &u; 11138364fbb4SSara Sharon } 11148364fbb4SSara Sharon 1115e705c121SKalle Valo /* TODO: for now the beacon template id is set to be the mac context id. 1116e705c121SKalle Valo * Might be better to handle it as another resource ... */ 1117d3a108a4SAndrei Otcheretianski u.beacon_cmd_v6.template_id = cpu_to_le32((u32)mvmvif->id); 1118e705c121SKalle Valo info = IEEE80211_SKB_CB(beacon); 1119e705c121SKalle Valo 1120e705c121SKalle Valo /* Set up TX command fields */ 1121d3a108a4SAndrei Otcheretianski u.beacon_cmd_v6.tx.len = cpu_to_le16((u16)beacon_skb_len); 1122d3a108a4SAndrei Otcheretianski u.beacon_cmd_v6.tx.sta_id = mvmvif->bcast_sta.sta_id; 1123d3a108a4SAndrei Otcheretianski u.beacon_cmd_v6.tx.life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE); 1124e705c121SKalle Valo tx_flags = TX_CMD_FLG_SEQ_CTL | TX_CMD_FLG_TSF; 1125e705c121SKalle Valo tx_flags |= 1126e705c121SKalle Valo iwl_mvm_bt_coex_tx_prio(mvm, (void *)beacon->data, info, 0) << 1127e705c121SKalle Valo TX_CMD_FLG_BT_PRIO_POS; 1128d3a108a4SAndrei Otcheretianski u.beacon_cmd_v6.tx.tx_flags = cpu_to_le32(tx_flags); 1129e705c121SKalle Valo 11301e3c3c35SEmmanuel Grumbach if (!fw_has_capa(&mvm->fw->ucode_capa, 11311e3c3c35SEmmanuel Grumbach IWL_UCODE_TLV_CAPA_BEACON_ANT_SELECTION)) { 1132e705c121SKalle Valo mvm->mgmt_last_antenna_idx = 1133e705c121SKalle Valo iwl_mvm_next_antenna(mvm, iwl_mvm_get_valid_tx_ant(mvm), 1134e705c121SKalle Valo mvm->mgmt_last_antenna_idx); 11351e3c3c35SEmmanuel Grumbach } 1136e705c121SKalle Valo 1137d3a108a4SAndrei Otcheretianski u.beacon_cmd_v6.tx.rate_n_flags = 1138e705c121SKalle Valo cpu_to_le32(BIT(mvm->mgmt_last_antenna_idx) << 1139e705c121SKalle Valo RATE_MCS_ANT_POS); 1140e705c121SKalle Valo 114157fbcce3SJohannes Berg if (info->band == NL80211_BAND_5GHZ || vif->p2p) { 1142e705c121SKalle Valo rate = IWL_FIRST_OFDM_RATE; 1143e705c121SKalle Valo } else { 1144e705c121SKalle Valo rate = IWL_FIRST_CCK_RATE; 1145d3a108a4SAndrei Otcheretianski u.beacon_cmd_v6.tx.rate_n_flags |= 1146d3a108a4SAndrei Otcheretianski cpu_to_le32(RATE_MCS_CCK_MSK); 1147e705c121SKalle Valo } 1148d3a108a4SAndrei Otcheretianski u.beacon_cmd_v6.tx.rate_n_flags |= 1149e705c121SKalle Valo cpu_to_le32(iwl_mvm_mac80211_idx_to_hwrate(rate)); 1150e705c121SKalle Valo 1151e705c121SKalle Valo /* Set up TX beacon command fields */ 1152e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP) 11538364fbb4SSara Sharon iwl_mvm_mac_ctxt_set_tim(mvm, &u.beacon_cmd_v6.tim_idx, 11548364fbb4SSara Sharon &u.beacon_cmd_v6.tim_size, 1155e705c121SKalle Valo beacon->data, 1156e705c121SKalle Valo beacon_skb_len); 1157e705c121SKalle Valo 11588364fbb4SSara Sharon send: 1159e705c121SKalle Valo /* Submit command */ 1160e705c121SKalle Valo cmd.dataflags[0] = 0; 1161e705c121SKalle Valo cmd.len[1] = beacon_skb_len; 1162e705c121SKalle Valo cmd.data[1] = beacon->data; 1163e705c121SKalle Valo cmd.dataflags[1] = IWL_HCMD_DFL_DUP; 1164e705c121SKalle Valo 1165e705c121SKalle Valo return iwl_mvm_send_cmd(mvm, &cmd); 1166e705c121SKalle Valo } 1167e705c121SKalle Valo 1168e705c121SKalle Valo /* The beacon template for the AP/GO/IBSS has changed and needs update */ 1169e705c121SKalle Valo int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm, 1170e705c121SKalle Valo struct ieee80211_vif *vif) 1171e705c121SKalle Valo { 1172e705c121SKalle Valo struct sk_buff *beacon; 1173e705c121SKalle Valo int ret; 1174e705c121SKalle Valo 1175e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_AP && 1176e705c121SKalle Valo vif->type != NL80211_IFTYPE_ADHOC); 1177e705c121SKalle Valo 1178e705c121SKalle Valo beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL); 1179e705c121SKalle Valo if (!beacon) 1180e705c121SKalle Valo return -ENOMEM; 1181e705c121SKalle Valo 1182e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_send_beacon(mvm, vif, beacon); 1183e705c121SKalle Valo dev_kfree_skb(beacon); 1184e705c121SKalle Valo return ret; 1185e705c121SKalle Valo } 1186e705c121SKalle Valo 1187e705c121SKalle Valo struct iwl_mvm_mac_ap_iterator_data { 1188e705c121SKalle Valo struct iwl_mvm *mvm; 1189e705c121SKalle Valo struct ieee80211_vif *vif; 1190e705c121SKalle Valo u32 beacon_device_ts; 1191e705c121SKalle Valo u16 beacon_int; 1192e705c121SKalle Valo }; 1193e705c121SKalle Valo 1194e705c121SKalle Valo /* Find the beacon_device_ts and beacon_int for a managed interface */ 1195e705c121SKalle Valo static void iwl_mvm_mac_ap_iterator(void *_data, u8 *mac, 1196e705c121SKalle Valo struct ieee80211_vif *vif) 1197e705c121SKalle Valo { 1198e705c121SKalle Valo struct iwl_mvm_mac_ap_iterator_data *data = _data; 1199e705c121SKalle Valo 1200e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc) 1201e705c121SKalle Valo return; 1202e705c121SKalle Valo 1203e705c121SKalle Valo /* Station client has higher priority over P2P client*/ 1204e705c121SKalle Valo if (vif->p2p && data->beacon_device_ts) 1205e705c121SKalle Valo return; 1206e705c121SKalle Valo 1207e705c121SKalle Valo data->beacon_device_ts = vif->bss_conf.sync_device_ts; 1208e705c121SKalle Valo data->beacon_int = vif->bss_conf.beacon_int; 1209e705c121SKalle Valo } 1210e705c121SKalle Valo 1211e705c121SKalle Valo /* 1212e705c121SKalle Valo * Fill the specific data for mac context of type AP of P2P GO 1213e705c121SKalle Valo */ 1214e705c121SKalle Valo static void iwl_mvm_mac_ctxt_cmd_fill_ap(struct iwl_mvm *mvm, 1215e705c121SKalle Valo struct ieee80211_vif *vif, 1216186cd49aSJohannes Berg struct iwl_mac_ctx_cmd *cmd, 1217e705c121SKalle Valo struct iwl_mac_data_ap *ctxt_ap, 1218e705c121SKalle Valo bool add) 1219e705c121SKalle Valo { 1220e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1221e705c121SKalle Valo struct iwl_mvm_mac_ap_iterator_data data = { 1222e705c121SKalle Valo .mvm = mvm, 1223e705c121SKalle Valo .vif = vif, 1224e705c121SKalle Valo .beacon_device_ts = 0 1225e705c121SKalle Valo }; 1226e705c121SKalle Valo 1227186cd49aSJohannes Berg /* in AP mode, the MCAST FIFO takes the EDCA params from VO */ 1228186cd49aSJohannes Berg cmd->ac[IWL_MVM_TX_FIFO_VO].fifos_mask |= BIT(IWL_MVM_TX_FIFO_MCAST); 1229186cd49aSJohannes Berg 1230186cd49aSJohannes Berg /* 1231186cd49aSJohannes Berg * in AP mode, pass probe requests and beacons from other APs 1232186cd49aSJohannes Berg * (needed for ht protection); when there're no any associated 1233186cd49aSJohannes Berg * station don't ask FW to pass beacons to prevent unnecessary 1234186cd49aSJohannes Berg * wake-ups. 1235186cd49aSJohannes Berg */ 1236186cd49aSJohannes Berg cmd->filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); 1237186cd49aSJohannes Berg if (mvmvif->ap_assoc_sta_count || !mvm->drop_bcn_ap_mode) { 1238186cd49aSJohannes Berg cmd->filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); 1239186cd49aSJohannes Berg IWL_DEBUG_HC(mvm, "Asking FW to pass beacons\n"); 1240186cd49aSJohannes Berg } else { 1241186cd49aSJohannes Berg IWL_DEBUG_HC(mvm, "No need to receive beacons\n"); 1242186cd49aSJohannes Berg } 1243186cd49aSJohannes Berg 1244e705c121SKalle Valo ctxt_ap->bi = cpu_to_le32(vif->bss_conf.beacon_int); 1245e705c121SKalle Valo ctxt_ap->bi_reciprocal = 1246e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int)); 1247e705c121SKalle Valo ctxt_ap->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int * 1248e705c121SKalle Valo vif->bss_conf.dtim_period); 1249e705c121SKalle Valo ctxt_ap->dtim_reciprocal = 1250e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int * 1251e705c121SKalle Valo vif->bss_conf.dtim_period)); 1252e705c121SKalle Valo 1253ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, 1254ced19f26SSara Sharon IWL_UCODE_TLV_API_STA_TYPE)) 1255e705c121SKalle Valo ctxt_ap->mcast_qid = cpu_to_le32(vif->cab_queue); 1256e705c121SKalle Valo 1257e705c121SKalle Valo /* 1258e705c121SKalle Valo * Only set the beacon time when the MAC is being added, when we 1259e705c121SKalle Valo * just modify the MAC then we should keep the time -- the firmware 1260e705c121SKalle Valo * can otherwise have a "jumping" TBTT. 1261e705c121SKalle Valo */ 1262e705c121SKalle Valo if (add) { 1263e705c121SKalle Valo /* 1264e705c121SKalle Valo * If there is a station/P2P client interface which is 1265e705c121SKalle Valo * associated, set the AP's TBTT far enough from the station's 1266e705c121SKalle Valo * TBTT. Otherwise, set it to the current system time 1267e705c121SKalle Valo */ 1268e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 1269e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 1270e705c121SKalle Valo iwl_mvm_mac_ap_iterator, &data); 1271e705c121SKalle Valo 1272e705c121SKalle Valo if (data.beacon_device_ts) { 1273e705c121SKalle Valo u32 rand = (prandom_u32() % (64 - 36)) + 36; 1274e705c121SKalle Valo mvmvif->ap_beacon_time = data.beacon_device_ts + 1275e705c121SKalle Valo ieee80211_tu_to_usec(data.beacon_int * rand / 1276e705c121SKalle Valo 100); 1277e705c121SKalle Valo } else { 1278e705c121SKalle Valo mvmvif->ap_beacon_time = 1279e705c121SKalle Valo iwl_read_prph(mvm->trans, 1280e705c121SKalle Valo DEVICE_SYSTEM_TIME_REG); 1281e705c121SKalle Valo } 1282e705c121SKalle Valo } 1283e705c121SKalle Valo 1284e705c121SKalle Valo ctxt_ap->beacon_time = cpu_to_le32(mvmvif->ap_beacon_time); 1285e705c121SKalle Valo ctxt_ap->beacon_tsf = 0; /* unused */ 1286e705c121SKalle Valo 1287e705c121SKalle Valo /* TODO: Assume that the beacon id == mac context id */ 1288e705c121SKalle Valo ctxt_ap->beacon_template = cpu_to_le32(mvmvif->id); 1289e705c121SKalle Valo } 1290e705c121SKalle Valo 1291e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_ap(struct iwl_mvm *mvm, 1292e705c121SKalle Valo struct ieee80211_vif *vif, 1293e705c121SKalle Valo u32 action) 1294e705c121SKalle Valo { 1295e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 1296e705c121SKalle Valo 1297e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_AP || vif->p2p); 1298e705c121SKalle Valo 1299e705c121SKalle Valo /* Fill the common data for all mac context types */ 1300e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 1301e705c121SKalle Valo 1302e705c121SKalle Valo /* Fill the data specific for ap mode */ 1303186cd49aSJohannes Berg iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd, &cmd.ap, 1304e705c121SKalle Valo action == FW_CTXT_ACTION_ADD); 1305e705c121SKalle Valo 1306e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 1307e705c121SKalle Valo } 1308e705c121SKalle Valo 1309e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_go(struct iwl_mvm *mvm, 1310e705c121SKalle Valo struct ieee80211_vif *vif, 1311e705c121SKalle Valo u32 action) 1312e705c121SKalle Valo { 1313e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 1314e705c121SKalle Valo struct ieee80211_p2p_noa_attr *noa = &vif->bss_conf.p2p_noa_attr; 1315e705c121SKalle Valo 1316e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_AP || !vif->p2p); 1317e705c121SKalle Valo 1318e705c121SKalle Valo /* Fill the common data for all mac context types */ 1319e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 1320e705c121SKalle Valo 1321e705c121SKalle Valo /* Fill the data specific for GO mode */ 1322186cd49aSJohannes Berg iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd, &cmd.go.ap, 1323e705c121SKalle Valo action == FW_CTXT_ACTION_ADD); 1324e705c121SKalle Valo 1325e705c121SKalle Valo cmd.go.ctwin = cpu_to_le32(noa->oppps_ctwindow & 1326e705c121SKalle Valo IEEE80211_P2P_OPPPS_CTWINDOW_MASK); 1327e705c121SKalle Valo cmd.go.opp_ps_enabled = 1328e705c121SKalle Valo cpu_to_le32(!!(noa->oppps_ctwindow & 1329e705c121SKalle Valo IEEE80211_P2P_OPPPS_ENABLE_BIT)); 1330e705c121SKalle Valo 1331e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 1332e705c121SKalle Valo } 1333e705c121SKalle Valo 1334e705c121SKalle Valo static int iwl_mvm_mac_ctx_send(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1335e705c121SKalle Valo u32 action, bool force_assoc_off, 1336e705c121SKalle Valo const u8 *bssid_override) 1337e705c121SKalle Valo { 1338e705c121SKalle Valo switch (vif->type) { 1339e705c121SKalle Valo case NL80211_IFTYPE_STATION: 1340e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_sta(mvm, vif, action, 1341e705c121SKalle Valo force_assoc_off, 1342e705c121SKalle Valo bssid_override); 1343e705c121SKalle Valo break; 1344e705c121SKalle Valo case NL80211_IFTYPE_AP: 1345e705c121SKalle Valo if (!vif->p2p) 1346e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_ap(mvm, vif, action); 1347e705c121SKalle Valo else 1348e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_go(mvm, vif, action); 1349e705c121SKalle Valo break; 1350e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 1351e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_listener(mvm, vif, action); 1352e705c121SKalle Valo case NL80211_IFTYPE_P2P_DEVICE: 1353e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_p2p_device(mvm, vif, action); 1354e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 1355e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_ibss(mvm, vif, action); 1356e705c121SKalle Valo default: 1357e705c121SKalle Valo break; 1358e705c121SKalle Valo } 1359e705c121SKalle Valo 1360e705c121SKalle Valo return -EOPNOTSUPP; 1361e705c121SKalle Valo } 1362e705c121SKalle Valo 1363e705c121SKalle Valo int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1364e705c121SKalle Valo { 1365e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1366e705c121SKalle Valo int ret; 1367e705c121SKalle Valo 1368e705c121SKalle Valo if (WARN_ONCE(mvmvif->uploaded, "Adding active MAC %pM/%d\n", 1369e705c121SKalle Valo vif->addr, ieee80211_vif_type_p2p(vif))) 1370e705c121SKalle Valo return -EIO; 1371e705c121SKalle Valo 1372e705c121SKalle Valo ret = iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_ADD, 1373e705c121SKalle Valo true, NULL); 1374e705c121SKalle Valo if (ret) 1375e705c121SKalle Valo return ret; 1376e705c121SKalle Valo 1377e705c121SKalle Valo /* will only do anything at resume from D3 time */ 1378e705c121SKalle Valo iwl_mvm_set_last_nonqos_seq(mvm, vif); 1379e705c121SKalle Valo 1380e705c121SKalle Valo mvmvif->uploaded = true; 1381e705c121SKalle Valo return 0; 1382e705c121SKalle Valo } 1383e705c121SKalle Valo 1384e705c121SKalle Valo int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1385e705c121SKalle Valo bool force_assoc_off, const u8 *bssid_override) 1386e705c121SKalle Valo { 1387e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1388e705c121SKalle Valo 1389e705c121SKalle Valo if (WARN_ONCE(!mvmvif->uploaded, "Changing inactive MAC %pM/%d\n", 1390e705c121SKalle Valo vif->addr, ieee80211_vif_type_p2p(vif))) 1391e705c121SKalle Valo return -EIO; 1392e705c121SKalle Valo 1393e705c121SKalle Valo return iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_MODIFY, 1394e705c121SKalle Valo force_assoc_off, bssid_override); 1395e705c121SKalle Valo } 1396e705c121SKalle Valo 1397e705c121SKalle Valo int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1398e705c121SKalle Valo { 1399e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1400e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd; 1401e705c121SKalle Valo int ret; 1402e705c121SKalle Valo 1403e705c121SKalle Valo if (WARN_ONCE(!mvmvif->uploaded, "Removing inactive MAC %pM/%d\n", 1404e705c121SKalle Valo vif->addr, ieee80211_vif_type_p2p(vif))) 1405e705c121SKalle Valo return -EIO; 1406e705c121SKalle Valo 1407e705c121SKalle Valo memset(&cmd, 0, sizeof(cmd)); 1408e705c121SKalle Valo 1409e705c121SKalle Valo cmd.id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1410e705c121SKalle Valo mvmvif->color)); 1411e705c121SKalle Valo cmd.action = cpu_to_le32(FW_CTXT_ACTION_REMOVE); 1412e705c121SKalle Valo 1413e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, 0, 1414e705c121SKalle Valo sizeof(cmd), &cmd); 1415e705c121SKalle Valo if (ret) { 1416e705c121SKalle Valo IWL_ERR(mvm, "Failed to remove MAC context: %d\n", ret); 1417e705c121SKalle Valo return ret; 1418e705c121SKalle Valo } 1419e705c121SKalle Valo 1420e705c121SKalle Valo mvmvif->uploaded = false; 1421e705c121SKalle Valo 14220e39eb03SChaya Rachel Ivgi if (vif->type == NL80211_IFTYPE_MONITOR) { 1423e705c121SKalle Valo __clear_bit(IEEE80211_HW_RX_INCLUDES_FCS, mvm->hw->flags); 14240e39eb03SChaya Rachel Ivgi iwl_mvm_dealloc_snif_sta(mvm); 14250e39eb03SChaya Rachel Ivgi } 1426e705c121SKalle Valo 1427e705c121SKalle Valo return 0; 1428e705c121SKalle Valo } 1429e705c121SKalle Valo 1430e705c121SKalle Valo static void iwl_mvm_csa_count_down(struct iwl_mvm *mvm, 1431e705c121SKalle Valo struct ieee80211_vif *csa_vif, u32 gp2, 1432e705c121SKalle Valo bool tx_success) 1433e705c121SKalle Valo { 1434e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = 1435e705c121SKalle Valo iwl_mvm_vif_from_mac80211(csa_vif); 1436e705c121SKalle Valo 1437e705c121SKalle Valo /* Don't start to countdown from a failed beacon */ 1438e705c121SKalle Valo if (!tx_success && !mvmvif->csa_countdown) 1439e705c121SKalle Valo return; 1440e705c121SKalle Valo 1441e705c121SKalle Valo mvmvif->csa_countdown = true; 1442e705c121SKalle Valo 1443e705c121SKalle Valo if (!ieee80211_csa_is_complete(csa_vif)) { 1444e705c121SKalle Valo int c = ieee80211_csa_update_counter(csa_vif); 1445e705c121SKalle Valo 1446e705c121SKalle Valo iwl_mvm_mac_ctxt_beacon_changed(mvm, csa_vif); 1447e705c121SKalle Valo if (csa_vif->p2p && 1448e705c121SKalle Valo !iwl_mvm_te_scheduled(&mvmvif->time_event_data) && gp2 && 1449e705c121SKalle Valo tx_success) { 1450e705c121SKalle Valo u32 rel_time = (c + 1) * 1451e705c121SKalle Valo csa_vif->bss_conf.beacon_int - 1452e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_TIME_GO; 1453e705c121SKalle Valo u32 apply_time = gp2 + rel_time * 1024; 1454e705c121SKalle Valo 1455e705c121SKalle Valo iwl_mvm_schedule_csa_period(mvm, csa_vif, 1456e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_TIME_GO - 1457e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_MARGIN, 1458e705c121SKalle Valo apply_time); 1459e705c121SKalle Valo } 1460e705c121SKalle Valo } else if (!iwl_mvm_te_scheduled(&mvmvif->time_event_data)) { 1461e705c121SKalle Valo /* we don't have CSA NoA scheduled yet, switch now */ 1462e705c121SKalle Valo ieee80211_csa_finish(csa_vif); 1463e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_vif, NULL); 1464e705c121SKalle Valo } 1465e705c121SKalle Valo } 1466e705c121SKalle Valo 1467e705c121SKalle Valo void iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm, 1468e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 1469e705c121SKalle Valo { 1470e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 1471e705c121SKalle Valo struct iwl_extended_beacon_notif *beacon = (void *)pkt->data; 1472e705c121SKalle Valo struct iwl_mvm_tx_resp *beacon_notify_hdr; 1473e705c121SKalle Valo struct ieee80211_vif *csa_vif; 1474e705c121SKalle Valo struct ieee80211_vif *tx_blocked_vif; 147512db294cSSara Sharon struct agg_tx_status *agg_status; 1476e705c121SKalle Valo u16 status; 1477e705c121SKalle Valo 1478e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1479e705c121SKalle Valo 1480e705c121SKalle Valo beacon_notify_hdr = &beacon->beacon_notify_hdr; 1481e705c121SKalle Valo mvm->ap_last_beacon_gp2 = le32_to_cpu(beacon->gp2); 14822f0282dbSJohannes Berg mvm->ibss_manager = beacon->ibss_mgr_status != 0; 1483e705c121SKalle Valo 148412db294cSSara Sharon agg_status = iwl_mvm_get_agg_status(mvm, beacon_notify_hdr); 148512db294cSSara Sharon status = le16_to_cpu(agg_status->status) & TX_STATUS_MSK; 1486e705c121SKalle Valo IWL_DEBUG_RX(mvm, 1487e705c121SKalle Valo "beacon status %#x retries:%d tsf:0x%16llX gp2:0x%X rate:%d\n", 1488e705c121SKalle Valo status, beacon_notify_hdr->failure_frame, 1489e705c121SKalle Valo le64_to_cpu(beacon->tsf), 1490e705c121SKalle Valo mvm->ap_last_beacon_gp2, 1491e705c121SKalle Valo le32_to_cpu(beacon_notify_hdr->initial_rate)); 1492e705c121SKalle Valo 1493e705c121SKalle Valo csa_vif = rcu_dereference_protected(mvm->csa_vif, 1494e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1495e705c121SKalle Valo if (unlikely(csa_vif && csa_vif->csa_active)) 1496e705c121SKalle Valo iwl_mvm_csa_count_down(mvm, csa_vif, mvm->ap_last_beacon_gp2, 1497e705c121SKalle Valo (status == TX_STATUS_SUCCESS)); 1498e705c121SKalle Valo 1499e705c121SKalle Valo tx_blocked_vif = rcu_dereference_protected(mvm->csa_tx_blocked_vif, 1500e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1501e705c121SKalle Valo if (unlikely(tx_blocked_vif)) { 1502e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = 1503e705c121SKalle Valo iwl_mvm_vif_from_mac80211(tx_blocked_vif); 1504e705c121SKalle Valo 1505e705c121SKalle Valo /* 1506e705c121SKalle Valo * The channel switch is started and we have blocked the 1507e705c121SKalle Valo * stations. If this is the first beacon (the timeout wasn't 1508e705c121SKalle Valo * set), set the unblock timeout, otherwise countdown 1509e705c121SKalle Valo */ 1510e705c121SKalle Valo if (!mvm->csa_tx_block_bcn_timeout) 1511e705c121SKalle Valo mvm->csa_tx_block_bcn_timeout = 1512e705c121SKalle Valo IWL_MVM_CS_UNBLOCK_TX_TIMEOUT; 1513e705c121SKalle Valo else 1514e705c121SKalle Valo mvm->csa_tx_block_bcn_timeout--; 1515e705c121SKalle Valo 1516e705c121SKalle Valo /* Check if the timeout is expired, and unblock tx */ 1517e705c121SKalle Valo if (mvm->csa_tx_block_bcn_timeout == 0) { 1518e705c121SKalle Valo iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 1519e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 1520e705c121SKalle Valo } 1521e705c121SKalle Valo } 1522e705c121SKalle Valo } 1523e705c121SKalle Valo 1524e705c121SKalle Valo static void iwl_mvm_beacon_loss_iterator(void *_data, u8 *mac, 1525e705c121SKalle Valo struct ieee80211_vif *vif) 1526e705c121SKalle Valo { 1527e705c121SKalle Valo struct iwl_missed_beacons_notif *missed_beacons = _data; 1528e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1529e705c121SKalle Valo struct iwl_mvm *mvm = mvmvif->mvm; 1530e705c121SKalle Valo struct iwl_fw_dbg_trigger_missed_bcon *bcon_trig; 1531e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trigger; 1532e705c121SKalle Valo u32 stop_trig_missed_bcon, stop_trig_missed_bcon_since_rx; 1533e705c121SKalle Valo u32 rx_missed_bcon, rx_missed_bcon_since_rx; 1534e705c121SKalle Valo 1535e705c121SKalle Valo if (mvmvif->id != (u16)le32_to_cpu(missed_beacons->mac_id)) 1536e705c121SKalle Valo return; 1537e705c121SKalle Valo 1538e705c121SKalle Valo rx_missed_bcon = le32_to_cpu(missed_beacons->consec_missed_beacons); 1539e705c121SKalle Valo rx_missed_bcon_since_rx = 1540e705c121SKalle Valo le32_to_cpu(missed_beacons->consec_missed_beacons_since_last_rx); 1541e705c121SKalle Valo /* 1542e705c121SKalle Valo * TODO: the threshold should be adjusted based on latency conditions, 1543e705c121SKalle Valo * and/or in case of a CS flow on one of the other AP vifs. 1544e705c121SKalle Valo */ 1545e705c121SKalle Valo if (le32_to_cpu(missed_beacons->consec_missed_beacons_since_last_rx) > 1546e705c121SKalle Valo IWL_MVM_MISSED_BEACONS_THRESHOLD) 1547e705c121SKalle Valo ieee80211_beacon_loss(vif); 1548e705c121SKalle Valo 1549e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, 1550e705c121SKalle Valo FW_DBG_TRIGGER_MISSED_BEACONS)) 1551e705c121SKalle Valo return; 1552e705c121SKalle Valo 1553e705c121SKalle Valo trigger = iwl_fw_dbg_get_trigger(mvm->fw, 1554e705c121SKalle Valo FW_DBG_TRIGGER_MISSED_BEACONS); 1555e705c121SKalle Valo bcon_trig = (void *)trigger->data; 1556e705c121SKalle Valo stop_trig_missed_bcon = le32_to_cpu(bcon_trig->stop_consec_missed_bcon); 1557e705c121SKalle Valo stop_trig_missed_bcon_since_rx = 1558e705c121SKalle Valo le32_to_cpu(bcon_trig->stop_consec_missed_bcon_since_rx); 1559e705c121SKalle Valo 1560e705c121SKalle Valo /* TODO: implement start trigger */ 1561e705c121SKalle Valo 1562e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trigger)) 1563e705c121SKalle Valo return; 1564e705c121SKalle Valo 1565e705c121SKalle Valo if (rx_missed_bcon_since_rx >= stop_trig_missed_bcon_since_rx || 1566e705c121SKalle Valo rx_missed_bcon >= stop_trig_missed_bcon) 1567e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(mvm, trigger, NULL); 1568e705c121SKalle Valo } 1569e705c121SKalle Valo 1570e705c121SKalle Valo void iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm *mvm, 1571e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 1572e705c121SKalle Valo { 1573e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 1574e705c121SKalle Valo struct iwl_missed_beacons_notif *mb = (void *)pkt->data; 1575e705c121SKalle Valo 1576e705c121SKalle Valo IWL_DEBUG_INFO(mvm, 1577e705c121SKalle Valo "missed bcn mac_id=%u, consecutive=%u (%u, %u, %u)\n", 1578e705c121SKalle Valo le32_to_cpu(mb->mac_id), 1579e705c121SKalle Valo le32_to_cpu(mb->consec_missed_beacons), 1580e705c121SKalle Valo le32_to_cpu(mb->consec_missed_beacons_since_last_rx), 1581e705c121SKalle Valo le32_to_cpu(mb->num_recvd_beacons), 1582e705c121SKalle Valo le32_to_cpu(mb->num_expected_beacons)); 1583e705c121SKalle Valo 1584e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic(mvm->hw, 1585e705c121SKalle Valo IEEE80211_IFACE_ITER_NORMAL, 1586e705c121SKalle Valo iwl_mvm_beacon_loss_iterator, 1587e705c121SKalle Valo mb); 1588e705c121SKalle Valo } 15890db056d3SSara Sharon 15900db056d3SSara Sharon void iwl_mvm_rx_stored_beacon_notif(struct iwl_mvm *mvm, 15910db056d3SSara Sharon struct iwl_rx_cmd_buffer *rxb) 15920db056d3SSara Sharon { 15930db056d3SSara Sharon struct iwl_rx_packet *pkt = rxb_addr(rxb); 15940db056d3SSara Sharon struct iwl_stored_beacon_notif *sb = (void *)pkt->data; 15950db056d3SSara Sharon struct ieee80211_rx_status rx_status; 15960db056d3SSara Sharon struct sk_buff *skb; 15970db056d3SSara Sharon u32 size = le32_to_cpu(sb->byte_count); 15980db056d3SSara Sharon 15990db056d3SSara Sharon if (size == 0) 16000db056d3SSara Sharon return; 16010db056d3SSara Sharon 16020db056d3SSara Sharon skb = alloc_skb(size, GFP_ATOMIC); 16030db056d3SSara Sharon if (!skb) { 16040db056d3SSara Sharon IWL_ERR(mvm, "alloc_skb failed\n"); 16050db056d3SSara Sharon return; 16060db056d3SSara Sharon } 16070db056d3SSara Sharon 16080db056d3SSara Sharon /* update rx_status according to the notification's metadata */ 16090db056d3SSara Sharon memset(&rx_status, 0, sizeof(rx_status)); 16100db056d3SSara Sharon rx_status.mactime = le64_to_cpu(sb->tsf); 161177fe7395SSara Sharon /* TSF as indicated by the firmware is at INA time */ 161277fe7395SSara Sharon rx_status.flag |= RX_FLAG_MACTIME_PLCP_START; 16130db056d3SSara Sharon rx_status.device_timestamp = le32_to_cpu(sb->system_time); 16140db056d3SSara Sharon rx_status.band = 161534118c25SSara Sharon (sb->band & cpu_to_le16(RX_RES_PHY_FLAGS_BAND_24)) ? 161657fbcce3SJohannes Berg NL80211_BAND_2GHZ : NL80211_BAND_5GHZ; 16170db056d3SSara Sharon rx_status.freq = 16180db056d3SSara Sharon ieee80211_channel_to_frequency(le16_to_cpu(sb->channel), 16190db056d3SSara Sharon rx_status.band); 16200db056d3SSara Sharon 16210db056d3SSara Sharon /* copy the data */ 162259ae1d12SJohannes Berg skb_put_data(skb, sb->data, size); 16230db056d3SSara Sharon memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); 16240db056d3SSara Sharon 16250db056d3SSara Sharon /* pass it as regular rx to mac80211 */ 1626d63b548fSJohannes Berg ieee80211_rx_napi(mvm->hw, NULL, skb, NULL); 16270db056d3SSara Sharon } 1628d3a108a4SAndrei Otcheretianski 1629d3a108a4SAndrei Otcheretianski void iwl_mvm_channel_switch_noa_notif(struct iwl_mvm *mvm, 1630d3a108a4SAndrei Otcheretianski struct iwl_rx_cmd_buffer *rxb) 1631d3a108a4SAndrei Otcheretianski { 1632d3a108a4SAndrei Otcheretianski struct iwl_rx_packet *pkt = rxb_addr(rxb); 1633d3a108a4SAndrei Otcheretianski struct iwl_channel_switch_noa_notif *notif = (void *)pkt->data; 1634d3a108a4SAndrei Otcheretianski struct ieee80211_vif *csa_vif; 1635d3a108a4SAndrei Otcheretianski struct iwl_mvm_vif *mvmvif; 1636d3a108a4SAndrei Otcheretianski int len = iwl_rx_packet_payload_len(pkt); 1637d3a108a4SAndrei Otcheretianski u32 id_n_color; 1638d3a108a4SAndrei Otcheretianski 1639d3a108a4SAndrei Otcheretianski if (WARN_ON_ONCE(len < sizeof(*notif))) 1640d3a108a4SAndrei Otcheretianski return; 1641d3a108a4SAndrei Otcheretianski 1642d3a108a4SAndrei Otcheretianski rcu_read_lock(); 1643d3a108a4SAndrei Otcheretianski 1644d3a108a4SAndrei Otcheretianski csa_vif = rcu_dereference(mvm->csa_vif); 1645d3a108a4SAndrei Otcheretianski if (WARN_ON(!csa_vif || !csa_vif->csa_active)) 1646d3a108a4SAndrei Otcheretianski goto out_unlock; 1647d3a108a4SAndrei Otcheretianski 1648d3a108a4SAndrei Otcheretianski id_n_color = le32_to_cpu(notif->id_and_color); 1649d3a108a4SAndrei Otcheretianski 1650d3a108a4SAndrei Otcheretianski mvmvif = iwl_mvm_vif_from_mac80211(csa_vif); 1651d3a108a4SAndrei Otcheretianski if (WARN(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color) != id_n_color, 1652d3a108a4SAndrei Otcheretianski "channel switch noa notification on unexpected vif (csa_vif=%d, notif=%d)", 1653d3a108a4SAndrei Otcheretianski FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color), id_n_color)) 1654d3a108a4SAndrei Otcheretianski goto out_unlock; 1655d3a108a4SAndrei Otcheretianski 1656d3a108a4SAndrei Otcheretianski IWL_DEBUG_INFO(mvm, "Channel Switch Started Notification\n"); 1657d3a108a4SAndrei Otcheretianski 165886bbb1e1SJohannes Berg schedule_delayed_work(&mvm->cs_tx_unblock_dwork, 1659d3a108a4SAndrei Otcheretianski msecs_to_jiffies(IWL_MVM_CS_UNBLOCK_TX_TIMEOUT * 1660d3a108a4SAndrei Otcheretianski csa_vif->bss_conf.beacon_int)); 1661d3a108a4SAndrei Otcheretianski 1662d3a108a4SAndrei Otcheretianski ieee80211_csa_finish(csa_vif); 1663d3a108a4SAndrei Otcheretianski 1664d3a108a4SAndrei Otcheretianski rcu_read_unlock(); 1665d3a108a4SAndrei Otcheretianski 1666d3a108a4SAndrei Otcheretianski RCU_INIT_POINTER(mvm->csa_vif, NULL); 1667d3a108a4SAndrei Otcheretianski 1668d3a108a4SAndrei Otcheretianski return; 1669d3a108a4SAndrei Otcheretianski 1670d3a108a4SAndrei Otcheretianski out_unlock: 1671d3a108a4SAndrei Otcheretianski rcu_read_unlock(); 1672d3a108a4SAndrei Otcheretianski } 1673