1e705c121SKalle Valo /****************************************************************************** 2e705c121SKalle Valo * 3e705c121SKalle Valo * This file is provided under a dual BSD/GPLv2 license. When using or 4e705c121SKalle Valo * redistributing this file, you may do so under either license. 5e705c121SKalle Valo * 6e705c121SKalle Valo * GPL LICENSE SUMMARY 7e705c121SKalle Valo * 8e705c121SKalle Valo * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 9e705c121SKalle Valo * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH 1009856582SLuca Coelho * Copyright(c) 2015 - 2017 Intel Deutschland GmbH 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 3709856582SLuca Coelho * Copyright(c) 2015 - 2017 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" 75e705c121SKalle Valo 76e705c121SKalle Valo const u8 iwl_mvm_ac_to_tx_fifo[] = { 77e705c121SKalle Valo IWL_MVM_TX_FIFO_VO, 78e705c121SKalle Valo IWL_MVM_TX_FIFO_VI, 79e705c121SKalle Valo IWL_MVM_TX_FIFO_BE, 80e705c121SKalle Valo IWL_MVM_TX_FIFO_BK, 81e705c121SKalle Valo }; 82e705c121SKalle Valo 83cf6c6ea3SEmmanuel Grumbach const u8 iwl_mvm_ac_to_gen2_tx_fifo[] = { 84cf6c6ea3SEmmanuel Grumbach IWL_GEN2_EDCA_TX_FIFO_VO, 85cf6c6ea3SEmmanuel Grumbach IWL_GEN2_EDCA_TX_FIFO_VI, 86cf6c6ea3SEmmanuel Grumbach IWL_GEN2_EDCA_TX_FIFO_BE, 87cf6c6ea3SEmmanuel Grumbach IWL_GEN2_EDCA_TX_FIFO_BK, 88cf6c6ea3SEmmanuel Grumbach }; 89cf6c6ea3SEmmanuel Grumbach 90e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data { 91e705c121SKalle Valo struct iwl_mvm *mvm; 92e705c121SKalle Valo struct ieee80211_vif *vif; 93e705c121SKalle Valo unsigned long available_mac_ids[BITS_TO_LONGS(NUM_MAC_INDEX_DRIVER)]; 94e705c121SKalle Valo unsigned long available_tsf_ids[BITS_TO_LONGS(NUM_TSF_IDS)]; 95e705c121SKalle Valo enum iwl_tsf_id preferred_tsf; 96e705c121SKalle Valo bool found_vif; 97e705c121SKalle Valo }; 98e705c121SKalle Valo 99e705c121SKalle Valo struct iwl_mvm_hw_queues_iface_iterator_data { 100e705c121SKalle Valo struct ieee80211_vif *exclude_vif; 101e705c121SKalle Valo unsigned long used_hw_queues; 102e705c121SKalle Valo }; 103e705c121SKalle Valo 104e705c121SKalle Valo static void iwl_mvm_mac_tsf_id_iter(void *_data, u8 *mac, 105e705c121SKalle Valo struct ieee80211_vif *vif) 106e705c121SKalle Valo { 107e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data *data = _data; 108e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 109e705c121SKalle Valo u16 min_bi; 110e705c121SKalle Valo 111e705c121SKalle Valo /* Skip the interface for which we are trying to assign a tsf_id */ 112e705c121SKalle Valo if (vif == data->vif) 113e705c121SKalle Valo return; 114e705c121SKalle Valo 115e705c121SKalle Valo /* 116e705c121SKalle Valo * The TSF is a hardware/firmware resource, there are 4 and 117e705c121SKalle Valo * the driver should assign and free them as needed. However, 118e705c121SKalle Valo * there are cases where 2 MACs should share the same TSF ID 119e705c121SKalle Valo * for the purpose of clock sync, an optimization to avoid 120e705c121SKalle Valo * clock drift causing overlapping TBTTs/DTIMs for a GO and 121e705c121SKalle Valo * client in the system. 122e705c121SKalle Valo * 123e705c121SKalle Valo * The firmware will decide according to the MAC type which 124e705c121SKalle Valo * will be the master and slave. Clients that need to sync 125e705c121SKalle Valo * with a remote station will be the master, and an AP or GO 126e705c121SKalle Valo * will be the slave. 127e705c121SKalle Valo * 128e705c121SKalle Valo * Depending on the new interface type it can be slaved to 129e705c121SKalle Valo * or become the master of an existing interface. 130e705c121SKalle Valo */ 131e705c121SKalle Valo switch (data->vif->type) { 132e705c121SKalle Valo case NL80211_IFTYPE_STATION: 133e705c121SKalle Valo /* 134e705c121SKalle Valo * The new interface is a client, so if the one we're iterating 135e705c121SKalle Valo * is an AP, and the beacon interval of the AP is a multiple or 136e705c121SKalle Valo * divisor of the beacon interval of the client, the same TSF 137e705c121SKalle Valo * should be used to avoid drift between the new client and 138e705c121SKalle Valo * existing AP. The existing AP will get drift updates from the 139e705c121SKalle Valo * new client context in this case. 140e705c121SKalle Valo */ 141e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_AP || 142e705c121SKalle Valo data->preferred_tsf != NUM_TSF_IDS || 143e705c121SKalle Valo !test_bit(mvmvif->tsf_id, data->available_tsf_ids)) 144e705c121SKalle Valo break; 145e705c121SKalle Valo 146e705c121SKalle Valo min_bi = min(data->vif->bss_conf.beacon_int, 147e705c121SKalle Valo vif->bss_conf.beacon_int); 148e705c121SKalle Valo 149e705c121SKalle Valo if (!min_bi) 150e705c121SKalle Valo break; 151e705c121SKalle Valo 152e705c121SKalle Valo if ((data->vif->bss_conf.beacon_int - 153e705c121SKalle Valo vif->bss_conf.beacon_int) % min_bi == 0) { 154e705c121SKalle Valo data->preferred_tsf = mvmvif->tsf_id; 155e705c121SKalle Valo return; 156e705c121SKalle Valo } 157e705c121SKalle Valo break; 158e705c121SKalle Valo 159e705c121SKalle Valo case NL80211_IFTYPE_AP: 160e705c121SKalle Valo /* 161e705c121SKalle Valo * The new interface is AP/GO, so if its beacon interval is a 162e705c121SKalle Valo * multiple or a divisor of the beacon interval of an existing 163e705c121SKalle Valo * interface, it should get drift updates from an existing 164e705c121SKalle Valo * client or use the same TSF as an existing GO. There's no 165e705c121SKalle Valo * drift between TSFs internally but if they used different 166e705c121SKalle Valo * TSFs then a new client MAC could update one of them and 167e705c121SKalle Valo * cause drift that way. 168e705c121SKalle Valo */ 169e705c121SKalle Valo if ((vif->type != NL80211_IFTYPE_AP && 170e705c121SKalle Valo vif->type != NL80211_IFTYPE_STATION) || 171e705c121SKalle Valo data->preferred_tsf != NUM_TSF_IDS || 172e705c121SKalle Valo !test_bit(mvmvif->tsf_id, data->available_tsf_ids)) 173e705c121SKalle Valo break; 174e705c121SKalle Valo 175e705c121SKalle Valo min_bi = min(data->vif->bss_conf.beacon_int, 176e705c121SKalle Valo vif->bss_conf.beacon_int); 177e705c121SKalle Valo 178e705c121SKalle Valo if (!min_bi) 179e705c121SKalle Valo break; 180e705c121SKalle Valo 181e705c121SKalle Valo if ((data->vif->bss_conf.beacon_int - 182e705c121SKalle Valo vif->bss_conf.beacon_int) % min_bi == 0) { 183e705c121SKalle Valo data->preferred_tsf = mvmvif->tsf_id; 184e705c121SKalle Valo return; 185e705c121SKalle Valo } 186e705c121SKalle Valo break; 187e705c121SKalle Valo default: 188e705c121SKalle Valo /* 189e705c121SKalle Valo * For all other interface types there's no need to 190e705c121SKalle Valo * take drift into account. Either they're exclusive 191e705c121SKalle Valo * like IBSS and monitor, or we don't care much about 192e705c121SKalle Valo * their TSF (like P2P Device), but we won't be able 193e705c121SKalle Valo * to share the TSF resource. 194e705c121SKalle Valo */ 195e705c121SKalle Valo break; 196e705c121SKalle Valo } 197e705c121SKalle Valo 198e705c121SKalle Valo /* 199e705c121SKalle Valo * Unless we exited above, we can't share the TSF resource 200e705c121SKalle Valo * that the virtual interface we're iterating over is using 201e705c121SKalle Valo * with the new one, so clear the available bit and if this 202e705c121SKalle Valo * was the preferred one, reset that as well. 203e705c121SKalle Valo */ 204e705c121SKalle Valo __clear_bit(mvmvif->tsf_id, data->available_tsf_ids); 205e705c121SKalle Valo 206e705c121SKalle Valo if (data->preferred_tsf == mvmvif->tsf_id) 207e705c121SKalle Valo data->preferred_tsf = NUM_TSF_IDS; 208e705c121SKalle Valo } 209e705c121SKalle Valo 210e705c121SKalle Valo /* 211e705c121SKalle Valo * Get the mask of the queues used by the vif 212e705c121SKalle Valo */ 213e705c121SKalle Valo u32 iwl_mvm_mac_get_queues_mask(struct ieee80211_vif *vif) 214e705c121SKalle Valo { 215e705c121SKalle Valo u32 qmask = 0, ac; 216e705c121SKalle Valo 217e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 218e705c121SKalle Valo return BIT(IWL_MVM_OFFCHANNEL_QUEUE); 219e705c121SKalle Valo 220e705c121SKalle Valo for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 221e705c121SKalle Valo if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE) 222e705c121SKalle Valo qmask |= BIT(vif->hw_queue[ac]); 223e705c121SKalle Valo } 224e705c121SKalle Valo 2254d339989SLiad Kaufman if (vif->type == NL80211_IFTYPE_AP || 2264d339989SLiad Kaufman vif->type == NL80211_IFTYPE_ADHOC) 227e705c121SKalle Valo qmask |= BIT(vif->cab_queue); 228e705c121SKalle Valo 229e705c121SKalle Valo return qmask; 230e705c121SKalle Valo } 231e705c121SKalle Valo 232e705c121SKalle Valo static void iwl_mvm_iface_hw_queues_iter(void *_data, u8 *mac, 233e705c121SKalle Valo struct ieee80211_vif *vif) 234e705c121SKalle Valo { 235e705c121SKalle Valo struct iwl_mvm_hw_queues_iface_iterator_data *data = _data; 236e705c121SKalle Valo 237e705c121SKalle Valo /* exclude the given vif */ 238e705c121SKalle Valo if (vif == data->exclude_vif) 239e705c121SKalle Valo return; 240e705c121SKalle Valo 241e705c121SKalle Valo data->used_hw_queues |= iwl_mvm_mac_get_queues_mask(vif); 242e705c121SKalle Valo } 243e705c121SKalle Valo 244e705c121SKalle Valo static void iwl_mvm_mac_sta_hw_queues_iter(void *_data, 245e705c121SKalle Valo struct ieee80211_sta *sta) 246e705c121SKalle Valo { 247e705c121SKalle Valo struct iwl_mvm_hw_queues_iface_iterator_data *data = _data; 248e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 249e705c121SKalle Valo 250e705c121SKalle Valo /* Mark the queues used by the sta */ 251e705c121SKalle Valo data->used_hw_queues |= mvmsta->tfd_queue_msk; 252e705c121SKalle Valo } 253e705c121SKalle Valo 254e705c121SKalle Valo unsigned long iwl_mvm_get_used_hw_queues(struct iwl_mvm *mvm, 255e705c121SKalle Valo struct ieee80211_vif *exclude_vif) 256e705c121SKalle Valo { 257e705c121SKalle Valo u8 sta_id; 258e705c121SKalle Valo struct iwl_mvm_hw_queues_iface_iterator_data data = { 259e705c121SKalle Valo .exclude_vif = exclude_vif, 260e705c121SKalle Valo .used_hw_queues = 261e705c121SKalle Valo BIT(IWL_MVM_OFFCHANNEL_QUEUE) | 262097129c9SLiad Kaufman BIT(mvm->aux_queue), 263e705c121SKalle Valo }; 264e705c121SKalle Valo 265097129c9SLiad Kaufman if (iwl_mvm_is_dqa_supported(mvm)) 26632026e8fSJohannes Berg data.used_hw_queues |= BIT(IWL_MVM_DQA_GCAST_QUEUE); 267097129c9SLiad Kaufman else 268097129c9SLiad Kaufman data.used_hw_queues |= BIT(IWL_MVM_CMD_QUEUE); 269097129c9SLiad Kaufman 270e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 271e705c121SKalle Valo 272e705c121SKalle Valo /* mark all VIF used hw queues */ 273e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 274e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 275e705c121SKalle Valo iwl_mvm_iface_hw_queues_iter, &data); 276e705c121SKalle Valo 27732026e8fSJohannes Berg /* 27832026e8fSJohannes Berg * for DQA, the hw_queue in mac80211 is never really used for 27932026e8fSJohannes Berg * real traffic (only the few queue IDs covered above), so 28032026e8fSJohannes Berg * we can reuse the real HW queue IDs the stations use 28132026e8fSJohannes Berg */ 28232026e8fSJohannes Berg if (iwl_mvm_is_dqa_supported(mvm)) 28332026e8fSJohannes Berg return data.used_hw_queues; 28432026e8fSJohannes Berg 285e705c121SKalle Valo /* don't assign the same hw queues as TDLS stations */ 286e705c121SKalle Valo ieee80211_iterate_stations_atomic(mvm->hw, 287e705c121SKalle Valo iwl_mvm_mac_sta_hw_queues_iter, 288e705c121SKalle Valo &data); 289e705c121SKalle Valo 290e705c121SKalle Valo /* 291e705c121SKalle Valo * Some TDLS stations may be removed but are in the process of being 292e705c121SKalle Valo * drained. Don't touch their queues. 293e705c121SKalle Valo */ 294e705c121SKalle Valo for_each_set_bit(sta_id, mvm->sta_drained, IWL_MVM_STATION_COUNT) 295e705c121SKalle Valo data.used_hw_queues |= mvm->tfd_drained[sta_id]; 296e705c121SKalle Valo 297e705c121SKalle Valo return data.used_hw_queues; 298e705c121SKalle Valo } 299e705c121SKalle Valo 300e705c121SKalle Valo static void iwl_mvm_mac_iface_iterator(void *_data, u8 *mac, 301e705c121SKalle Valo struct ieee80211_vif *vif) 302e705c121SKalle Valo { 303e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data *data = _data; 304e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 305e705c121SKalle Valo 306e705c121SKalle Valo /* Iterator may already find the interface being added -- skip it */ 307e705c121SKalle Valo if (vif == data->vif) { 308e705c121SKalle Valo data->found_vif = true; 309e705c121SKalle Valo return; 310e705c121SKalle Valo } 311e705c121SKalle Valo 312e705c121SKalle Valo /* Mark MAC IDs as used by clearing the available bit, and 313e705c121SKalle Valo * (below) mark TSFs as used if their existing use is not 314e705c121SKalle Valo * compatible with the new interface type. 315e705c121SKalle Valo * No locking or atomic bit operations are needed since the 316e705c121SKalle Valo * data is on the stack of the caller function. 317e705c121SKalle Valo */ 318e705c121SKalle Valo __clear_bit(mvmvif->id, data->available_mac_ids); 319e705c121SKalle Valo 320e705c121SKalle Valo /* find a suitable tsf_id */ 321e705c121SKalle Valo iwl_mvm_mac_tsf_id_iter(_data, mac, vif); 322e705c121SKalle Valo } 323e705c121SKalle Valo 324e705c121SKalle Valo void iwl_mvm_mac_ctxt_recalc_tsf_id(struct iwl_mvm *mvm, 325e705c121SKalle Valo struct ieee80211_vif *vif) 326e705c121SKalle Valo { 327e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 328e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data data = { 329e705c121SKalle Valo .mvm = mvm, 330e705c121SKalle Valo .vif = vif, 331e705c121SKalle Valo .available_tsf_ids = { (1 << NUM_TSF_IDS) - 1 }, 332e705c121SKalle Valo /* no preference yet */ 333e705c121SKalle Valo .preferred_tsf = NUM_TSF_IDS, 334e705c121SKalle Valo }; 335e705c121SKalle Valo 336e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 337e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 338e705c121SKalle Valo iwl_mvm_mac_tsf_id_iter, &data); 339e705c121SKalle Valo 340e705c121SKalle Valo if (data.preferred_tsf != NUM_TSF_IDS) 341e705c121SKalle Valo mvmvif->tsf_id = data.preferred_tsf; 342e705c121SKalle Valo else if (!test_bit(mvmvif->tsf_id, data.available_tsf_ids)) 343e705c121SKalle Valo mvmvif->tsf_id = find_first_bit(data.available_tsf_ids, 344e705c121SKalle Valo NUM_TSF_IDS); 345e705c121SKalle Valo } 346e705c121SKalle Valo 347e705c121SKalle Valo static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm, 348e705c121SKalle Valo struct ieee80211_vif *vif) 349e705c121SKalle Valo { 350e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 351e705c121SKalle Valo struct iwl_mvm_mac_iface_iterator_data data = { 352e705c121SKalle Valo .mvm = mvm, 353e705c121SKalle Valo .vif = vif, 354e705c121SKalle Valo .available_mac_ids = { (1 << NUM_MAC_INDEX_DRIVER) - 1 }, 355e705c121SKalle Valo .available_tsf_ids = { (1 << NUM_TSF_IDS) - 1 }, 356e705c121SKalle Valo /* no preference yet */ 357e705c121SKalle Valo .preferred_tsf = NUM_TSF_IDS, 358e705c121SKalle Valo .found_vif = false, 359e705c121SKalle Valo }; 360e705c121SKalle Valo u32 ac; 36132026e8fSJohannes Berg int ret, i, queue_limit; 362e705c121SKalle Valo unsigned long used_hw_queues; 363e705c121SKalle Valo 364e705c121SKalle Valo /* 365e705c121SKalle Valo * Allocate a MAC ID and a TSF for this MAC, along with the queues 366e705c121SKalle Valo * and other resources. 367e705c121SKalle Valo */ 368e705c121SKalle Valo 369e705c121SKalle Valo /* 370e705c121SKalle Valo * Before the iterator, we start with all MAC IDs and TSFs available. 371e705c121SKalle Valo * 372e705c121SKalle Valo * During iteration, all MAC IDs are cleared that are in use by other 373e705c121SKalle Valo * virtual interfaces, and all TSF IDs are cleared that can't be used 374e705c121SKalle Valo * by this new virtual interface because they're used by an interface 375e705c121SKalle Valo * that can't share it with the new one. 376e705c121SKalle Valo * At the same time, we check if there's a preferred TSF in the case 377e705c121SKalle Valo * that we should share it with another interface. 378e705c121SKalle Valo */ 379e705c121SKalle Valo 380e705c121SKalle Valo /* Currently, MAC ID 0 should be used only for the managed/IBSS vif */ 381e705c121SKalle Valo switch (vif->type) { 382e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 383e705c121SKalle Valo break; 384e705c121SKalle Valo case NL80211_IFTYPE_STATION: 385e705c121SKalle Valo if (!vif->p2p) 386e705c121SKalle Valo break; 387e705c121SKalle Valo /* fall through */ 388e705c121SKalle Valo default: 389e705c121SKalle Valo __clear_bit(0, data.available_mac_ids); 390e705c121SKalle Valo } 391e705c121SKalle Valo 392e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 393e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 394e705c121SKalle Valo iwl_mvm_mac_iface_iterator, &data); 395e705c121SKalle Valo 396e705c121SKalle Valo used_hw_queues = iwl_mvm_get_used_hw_queues(mvm, vif); 397e705c121SKalle Valo 398e705c121SKalle Valo /* 399e705c121SKalle Valo * In the case we're getting here during resume, it's similar to 400e705c121SKalle Valo * firmware restart, and with RESUME_ALL the iterator will find 401e705c121SKalle Valo * the vif being added already. 402e705c121SKalle Valo * We don't want to reassign any IDs in either case since doing 403e705c121SKalle Valo * so would probably assign different IDs (as interfaces aren't 404e705c121SKalle Valo * necessarily added in the same order), but the old IDs were 405e705c121SKalle Valo * preserved anyway, so skip ID assignment for both resume and 406e705c121SKalle Valo * recovery. 407e705c121SKalle Valo */ 408e705c121SKalle Valo if (data.found_vif) 409e705c121SKalle Valo return 0; 410e705c121SKalle Valo 411e705c121SKalle Valo /* Therefore, in recovery, we can't get here */ 412e705c121SKalle Valo if (WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))) 413e705c121SKalle Valo return -EBUSY; 414e705c121SKalle Valo 415e705c121SKalle Valo mvmvif->id = find_first_bit(data.available_mac_ids, 416e705c121SKalle Valo NUM_MAC_INDEX_DRIVER); 417e705c121SKalle Valo if (mvmvif->id == NUM_MAC_INDEX_DRIVER) { 418e705c121SKalle Valo IWL_ERR(mvm, "Failed to init MAC context - no free ID!\n"); 419e705c121SKalle Valo ret = -EIO; 420e705c121SKalle Valo goto exit_fail; 421e705c121SKalle Valo } 422e705c121SKalle Valo 423e705c121SKalle Valo if (data.preferred_tsf != NUM_TSF_IDS) 424e705c121SKalle Valo mvmvif->tsf_id = data.preferred_tsf; 425e705c121SKalle Valo else 426e705c121SKalle Valo mvmvif->tsf_id = find_first_bit(data.available_tsf_ids, 427e705c121SKalle Valo NUM_TSF_IDS); 428e705c121SKalle Valo if (mvmvif->tsf_id == NUM_TSF_IDS) { 429e705c121SKalle Valo IWL_ERR(mvm, "Failed to init MAC context - no free TSF!\n"); 430e705c121SKalle Valo ret = -EIO; 431e705c121SKalle Valo goto exit_fail; 432e705c121SKalle Valo } 433e705c121SKalle Valo 434e705c121SKalle Valo mvmvif->color = 0; 435e705c121SKalle Valo 436e705c121SKalle Valo INIT_LIST_HEAD(&mvmvif->time_event_data.list); 437e705c121SKalle Valo mvmvif->time_event_data.id = TE_MAX; 438e705c121SKalle Valo 439e705c121SKalle Valo /* No need to allocate data queues to P2P Device MAC.*/ 440e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 441e705c121SKalle Valo for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 442e705c121SKalle Valo vif->hw_queue[ac] = IEEE80211_INVAL_HW_QUEUE; 443e705c121SKalle Valo 444e705c121SKalle Valo return 0; 445e705c121SKalle Valo } 446e705c121SKalle Valo 44732026e8fSJohannes Berg if (iwl_mvm_is_dqa_supported(mvm)) { 44832026e8fSJohannes Berg /* 44932026e8fSJohannes Berg * queues in mac80211 almost entirely independent of 45032026e8fSJohannes Berg * the ones here - no real limit 45132026e8fSJohannes Berg */ 45232026e8fSJohannes Berg queue_limit = IEEE80211_MAX_QUEUES; 45332026e8fSJohannes Berg BUILD_BUG_ON(IEEE80211_MAX_QUEUES > 45432026e8fSJohannes Berg BITS_PER_BYTE * 45532026e8fSJohannes Berg sizeof(mvm->hw_queue_to_mac80211[0])); 45632026e8fSJohannes Berg } else { 45732026e8fSJohannes Berg /* need to not use too many in this case */ 45832026e8fSJohannes Berg queue_limit = mvm->first_agg_queue; 45932026e8fSJohannes Berg } 46032026e8fSJohannes Berg 46124afba76SLiad Kaufman /* 46224afba76SLiad Kaufman * Find available queues, and allocate them to the ACs. When in 46324afba76SLiad Kaufman * DQA-mode they aren't really used, and this is done only so the 46424afba76SLiad Kaufman * mac80211 ieee80211_check_queues() function won't fail 46524afba76SLiad Kaufman */ 466e705c121SKalle Valo for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 46732026e8fSJohannes Berg u8 queue = find_first_zero_bit(&used_hw_queues, queue_limit); 468e705c121SKalle Valo 46932026e8fSJohannes Berg if (queue >= queue_limit) { 470e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate queue\n"); 471e705c121SKalle Valo ret = -EIO; 472e705c121SKalle Valo goto exit_fail; 473e705c121SKalle Valo } 474e705c121SKalle Valo 475e705c121SKalle Valo __set_bit(queue, &used_hw_queues); 476e705c121SKalle Valo vif->hw_queue[ac] = queue; 477e705c121SKalle Valo } 478e705c121SKalle Valo 479e705c121SKalle Valo /* Allocate the CAB queue for softAP and GO interfaces */ 480e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP) { 4810e0e4420SLiad Kaufman u8 queue; 4820e0e4420SLiad Kaufman 4830e0e4420SLiad Kaufman if (!iwl_mvm_is_dqa_supported(mvm)) { 4840e0e4420SLiad Kaufman queue = find_first_zero_bit(&used_hw_queues, 485e705c121SKalle Valo mvm->first_agg_queue); 486e705c121SKalle Valo 487e705c121SKalle Valo if (queue >= mvm->first_agg_queue) { 488e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate cab queue\n"); 489e705c121SKalle Valo ret = -EIO; 490e705c121SKalle Valo goto exit_fail; 491e705c121SKalle Valo } 4920e0e4420SLiad Kaufman } else { 4930e0e4420SLiad Kaufman queue = IWL_MVM_DQA_GCAST_QUEUE; 4940e0e4420SLiad Kaufman } 495e705c121SKalle Valo 496e2af3fabSSara Sharon /* 497e2af3fabSSara Sharon * For TVQM this will be overwritten later with the FW assigned 498e2af3fabSSara Sharon * queue value (when queue is enabled). 499e2af3fabSSara Sharon */ 500e2af3fabSSara Sharon mvmvif->cab_queue = queue; 501e705c121SKalle Valo vif->cab_queue = queue; 502e705c121SKalle Valo } else { 503e705c121SKalle Valo vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 504e705c121SKalle Valo } 505e705c121SKalle Valo 5060ae98812SSara Sharon mvmvif->bcast_sta.sta_id = IWL_MVM_INVALID_STA; 5070ae98812SSara Sharon mvmvif->mcast_sta.sta_id = IWL_MVM_INVALID_STA; 5080ae98812SSara Sharon mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 509e705c121SKalle Valo 510e705c121SKalle Valo for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) 511e705c121SKalle Valo mvmvif->smps_requests[i] = IEEE80211_SMPS_AUTOMATIC; 512e705c121SKalle Valo 513e705c121SKalle Valo return 0; 514e705c121SKalle Valo 515e705c121SKalle Valo exit_fail: 516e705c121SKalle Valo memset(mvmvif, 0, sizeof(struct iwl_mvm_vif)); 517e705c121SKalle Valo memset(vif->hw_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(vif->hw_queue)); 518e705c121SKalle Valo vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 519e705c121SKalle Valo return ret; 520e705c121SKalle Valo } 521e705c121SKalle Valo 522e705c121SKalle Valo int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 523e705c121SKalle Valo { 524e705c121SKalle Valo unsigned int wdg_timeout = 525e705c121SKalle Valo iwl_mvm_get_wd_timeout(mvm, vif, false, false); 526e705c121SKalle Valo u32 ac; 527e705c121SKalle Valo int ret; 528e705c121SKalle Valo 529e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 530e705c121SKalle Valo 531e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_allocate_resources(mvm, vif); 532e705c121SKalle Valo if (ret) 533e705c121SKalle Valo return ret; 534e705c121SKalle Valo 5358236f7dbSSara Sharon /* If DQA is supported - queues will be enabled when needed */ 5368236f7dbSSara Sharon if (iwl_mvm_is_dqa_supported(mvm)) 5378236f7dbSSara Sharon return 0; 5388236f7dbSSara Sharon 539e705c121SKalle Valo switch (vif->type) { 540e705c121SKalle Valo case NL80211_IFTYPE_P2P_DEVICE: 541e705c121SKalle Valo iwl_mvm_enable_ac_txq(mvm, IWL_MVM_OFFCHANNEL_QUEUE, 542e705c121SKalle Valo IWL_MVM_OFFCHANNEL_QUEUE, 5438236f7dbSSara Sharon IWL_MVM_TX_FIFO_VO, 0, wdg_timeout); 544e705c121SKalle Valo break; 545e705c121SKalle Valo case NL80211_IFTYPE_AP: 546e705c121SKalle Valo iwl_mvm_enable_ac_txq(mvm, vif->cab_queue, vif->cab_queue, 547e705c121SKalle Valo IWL_MVM_TX_FIFO_MCAST, 0, wdg_timeout); 548e705c121SKalle Valo /* fall through */ 549e705c121SKalle Valo default: 550e705c121SKalle Valo for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 551e705c121SKalle Valo iwl_mvm_enable_ac_txq(mvm, vif->hw_queue[ac], 552e705c121SKalle Valo vif->hw_queue[ac], 553e705c121SKalle Valo iwl_mvm_ac_to_tx_fifo[ac], 0, 554e705c121SKalle Valo wdg_timeout); 555e705c121SKalle Valo break; 556e705c121SKalle Valo } 557e705c121SKalle Valo 558e705c121SKalle Valo return 0; 559e705c121SKalle Valo } 560e705c121SKalle Valo 561e705c121SKalle Valo void iwl_mvm_mac_ctxt_release(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 562e705c121SKalle Valo { 563e705c121SKalle Valo int ac; 564e705c121SKalle Valo 565e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 566e705c121SKalle Valo 56724afba76SLiad Kaufman /* 56824afba76SLiad Kaufman * If DQA is supported - queues were already disabled, since in 56924afba76SLiad Kaufman * DQA-mode the queues are a property of the STA and not of the 57024afba76SLiad Kaufman * vif, and at this point the STA was already deleted 57124afba76SLiad Kaufman */ 57224afba76SLiad Kaufman if (iwl_mvm_is_dqa_supported(mvm)) 573df88c08dSLiad Kaufman return; 57424afba76SLiad Kaufman 575df88c08dSLiad Kaufman switch (vif->type) { 576df88c08dSLiad Kaufman case NL80211_IFTYPE_P2P_DEVICE: 577df88c08dSLiad Kaufman iwl_mvm_disable_txq(mvm, IWL_MVM_OFFCHANNEL_QUEUE, 578df88c08dSLiad Kaufman IWL_MVM_OFFCHANNEL_QUEUE, 579df88c08dSLiad Kaufman IWL_MAX_TID_COUNT, 0); 580df88c08dSLiad Kaufman 581df88c08dSLiad Kaufman break; 582df88c08dSLiad Kaufman case NL80211_IFTYPE_AP: 583df88c08dSLiad Kaufman iwl_mvm_disable_txq(mvm, vif->cab_queue, vif->cab_queue, 584df88c08dSLiad Kaufman IWL_MAX_TID_COUNT, 0); 585df88c08dSLiad Kaufman /* fall through */ 586df88c08dSLiad Kaufman default: 587e705c121SKalle Valo for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 588e705c121SKalle Valo iwl_mvm_disable_txq(mvm, vif->hw_queue[ac], 589e705c121SKalle Valo vif->hw_queue[ac], 590e705c121SKalle Valo IWL_MAX_TID_COUNT, 0); 591e705c121SKalle Valo } 592e705c121SKalle Valo } 593e705c121SKalle Valo 594e705c121SKalle Valo static void iwl_mvm_ack_rates(struct iwl_mvm *mvm, 595e705c121SKalle Valo struct ieee80211_vif *vif, 59657fbcce3SJohannes Berg enum nl80211_band band, 597e705c121SKalle Valo u8 *cck_rates, u8 *ofdm_rates) 598e705c121SKalle Valo { 599e705c121SKalle Valo struct ieee80211_supported_band *sband; 600e705c121SKalle Valo unsigned long basic = vif->bss_conf.basic_rates; 601e705c121SKalle Valo int lowest_present_ofdm = 100; 602e705c121SKalle Valo int lowest_present_cck = 100; 603e705c121SKalle Valo u8 cck = 0; 604e705c121SKalle Valo u8 ofdm = 0; 605e705c121SKalle Valo int i; 606e705c121SKalle Valo 607e705c121SKalle Valo sband = mvm->hw->wiphy->bands[band]; 608e705c121SKalle Valo 609e705c121SKalle Valo for_each_set_bit(i, &basic, BITS_PER_LONG) { 610e705c121SKalle Valo int hw = sband->bitrates[i].hw_value; 611e705c121SKalle Valo if (hw >= IWL_FIRST_OFDM_RATE) { 612e705c121SKalle Valo ofdm |= BIT(hw - IWL_FIRST_OFDM_RATE); 613e705c121SKalle Valo if (lowest_present_ofdm > hw) 614e705c121SKalle Valo lowest_present_ofdm = hw; 615e705c121SKalle Valo } else { 616e705c121SKalle Valo BUILD_BUG_ON(IWL_FIRST_CCK_RATE != 0); 617e705c121SKalle Valo 618e705c121SKalle Valo cck |= BIT(hw); 619e705c121SKalle Valo if (lowest_present_cck > hw) 620e705c121SKalle Valo lowest_present_cck = hw; 621e705c121SKalle Valo } 622e705c121SKalle Valo } 623e705c121SKalle Valo 624e705c121SKalle Valo /* 625e705c121SKalle Valo * Now we've got the basic rates as bitmaps in the ofdm and cck 626e705c121SKalle Valo * variables. This isn't sufficient though, as there might not 627e705c121SKalle Valo * be all the right rates in the bitmap. E.g. if the only basic 628e705c121SKalle Valo * rates are 5.5 Mbps and 11 Mbps, we still need to add 1 Mbps 629e705c121SKalle Valo * and 6 Mbps because the 802.11-2007 standard says in 9.6: 630e705c121SKalle Valo * 631e705c121SKalle Valo * [...] a STA responding to a received frame shall transmit 632e705c121SKalle Valo * its Control Response frame [...] at the highest rate in the 633e705c121SKalle Valo * BSSBasicRateSet parameter that is less than or equal to the 634e705c121SKalle Valo * rate of the immediately previous frame in the frame exchange 635e705c121SKalle Valo * sequence ([...]) and that is of the same modulation class 636e705c121SKalle Valo * ([...]) as the received frame. If no rate contained in the 637e705c121SKalle Valo * BSSBasicRateSet parameter meets these conditions, then the 638e705c121SKalle Valo * control frame sent in response to a received frame shall be 639e705c121SKalle Valo * transmitted at the highest mandatory rate of the PHY that is 640e705c121SKalle Valo * less than or equal to the rate of the received frame, and 641e705c121SKalle Valo * that is of the same modulation class as the received frame. 642e705c121SKalle Valo * 643e705c121SKalle Valo * As a consequence, we need to add all mandatory rates that are 644e705c121SKalle Valo * lower than all of the basic rates to these bitmaps. 645e705c121SKalle Valo */ 646e705c121SKalle Valo 647e705c121SKalle Valo if (IWL_RATE_24M_INDEX < lowest_present_ofdm) 648e705c121SKalle Valo ofdm |= IWL_RATE_BIT_MSK(24) >> IWL_FIRST_OFDM_RATE; 649e705c121SKalle Valo if (IWL_RATE_12M_INDEX < lowest_present_ofdm) 650e705c121SKalle Valo ofdm |= IWL_RATE_BIT_MSK(12) >> IWL_FIRST_OFDM_RATE; 651e705c121SKalle Valo /* 6M already there or needed so always add */ 652e705c121SKalle Valo ofdm |= IWL_RATE_BIT_MSK(6) >> IWL_FIRST_OFDM_RATE; 653e705c121SKalle Valo 654e705c121SKalle Valo /* 655e705c121SKalle Valo * CCK is a bit more complex with DSSS vs. HR/DSSS vs. ERP. 656e705c121SKalle Valo * Note, however: 657e705c121SKalle Valo * - if no CCK rates are basic, it must be ERP since there must 658e705c121SKalle Valo * be some basic rates at all, so they're OFDM => ERP PHY 659e705c121SKalle Valo * (or we're in 5 GHz, and the cck bitmap will never be used) 660e705c121SKalle Valo * - if 11M is a basic rate, it must be ERP as well, so add 5.5M 661e705c121SKalle Valo * - if 5.5M is basic, 1M and 2M are mandatory 662e705c121SKalle Valo * - if 2M is basic, 1M is mandatory 663e705c121SKalle Valo * - if 1M is basic, that's the only valid ACK rate. 664e705c121SKalle Valo * As a consequence, it's not as complicated as it sounds, just add 665e705c121SKalle Valo * any lower rates to the ACK rate bitmap. 666e705c121SKalle Valo */ 667e705c121SKalle Valo if (IWL_RATE_11M_INDEX < lowest_present_cck) 668e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(11) >> IWL_FIRST_CCK_RATE; 669e705c121SKalle Valo if (IWL_RATE_5M_INDEX < lowest_present_cck) 670e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(5) >> IWL_FIRST_CCK_RATE; 671e705c121SKalle Valo if (IWL_RATE_2M_INDEX < lowest_present_cck) 672e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(2) >> IWL_FIRST_CCK_RATE; 673e705c121SKalle Valo /* 1M already there or needed so always add */ 674e705c121SKalle Valo cck |= IWL_RATE_BIT_MSK(1) >> IWL_FIRST_CCK_RATE; 675e705c121SKalle Valo 676e705c121SKalle Valo *cck_rates = cck; 677e705c121SKalle Valo *ofdm_rates = ofdm; 678e705c121SKalle Valo } 679e705c121SKalle Valo 680e705c121SKalle Valo static void iwl_mvm_mac_ctxt_set_ht_flags(struct iwl_mvm *mvm, 681e705c121SKalle Valo struct ieee80211_vif *vif, 682e705c121SKalle Valo struct iwl_mac_ctx_cmd *cmd) 683e705c121SKalle Valo { 684e705c121SKalle Valo /* for both sta and ap, ht_operation_mode hold the protection_mode */ 685e705c121SKalle Valo u8 protection_mode = vif->bss_conf.ht_operation_mode & 686e705c121SKalle Valo IEEE80211_HT_OP_MODE_PROTECTION; 687e705c121SKalle Valo /* The fw does not distinguish between ht and fat */ 688e705c121SKalle Valo u32 ht_flag = MAC_PROT_FLG_HT_PROT | MAC_PROT_FLG_FAT_PROT; 689e705c121SKalle Valo 690e705c121SKalle Valo IWL_DEBUG_RATE(mvm, "protection mode set to %d\n", protection_mode); 691e705c121SKalle Valo /* 692e705c121SKalle Valo * See section 9.23.3.1 of IEEE 80211-2012. 693e705c121SKalle Valo * Nongreenfield HT STAs Present is not supported. 694e705c121SKalle Valo */ 695e705c121SKalle Valo switch (protection_mode) { 696e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_NONE: 697e705c121SKalle Valo break; 698e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER: 699e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: 700e705c121SKalle Valo cmd->protection_flags |= cpu_to_le32(ht_flag); 701e705c121SKalle Valo break; 702e705c121SKalle Valo case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: 703e705c121SKalle Valo /* Protect when channel wider than 20MHz */ 704e705c121SKalle Valo if (vif->bss_conf.chandef.width > NL80211_CHAN_WIDTH_20) 705e705c121SKalle Valo cmd->protection_flags |= cpu_to_le32(ht_flag); 706e705c121SKalle Valo break; 707e705c121SKalle Valo default: 708e705c121SKalle Valo IWL_ERR(mvm, "Illegal protection mode %d\n", 709e705c121SKalle Valo protection_mode); 710e705c121SKalle Valo break; 711e705c121SKalle Valo } 712e705c121SKalle Valo } 713e705c121SKalle Valo 714e705c121SKalle Valo static void iwl_mvm_mac_ctxt_cmd_common(struct iwl_mvm *mvm, 715e705c121SKalle Valo struct ieee80211_vif *vif, 716e705c121SKalle Valo struct iwl_mac_ctx_cmd *cmd, 717e705c121SKalle Valo const u8 *bssid_override, 718e705c121SKalle Valo u32 action) 719e705c121SKalle Valo { 720e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 721e705c121SKalle Valo struct ieee80211_chanctx_conf *chanctx; 722e705c121SKalle Valo bool ht_enabled = !!(vif->bss_conf.ht_operation_mode & 723e705c121SKalle Valo IEEE80211_HT_OP_MODE_PROTECTION); 724e705c121SKalle Valo u8 cck_ack_rates, ofdm_ack_rates; 725e705c121SKalle Valo const u8 *bssid = bssid_override ?: vif->bss_conf.bssid; 726e705c121SKalle Valo int i; 727e705c121SKalle Valo 728e705c121SKalle Valo cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 729e705c121SKalle Valo mvmvif->color)); 730e705c121SKalle Valo cmd->action = cpu_to_le32(action); 731e705c121SKalle Valo 732e705c121SKalle Valo switch (vif->type) { 733e705c121SKalle Valo case NL80211_IFTYPE_STATION: 734e705c121SKalle Valo if (vif->p2p) 735e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_P2P_STA); 736e705c121SKalle Valo else 737e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_BSS_STA); 738e705c121SKalle Valo break; 739e705c121SKalle Valo case NL80211_IFTYPE_AP: 740e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_GO); 741e705c121SKalle Valo break; 742e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 743e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_LISTENER); 744e705c121SKalle Valo break; 745e705c121SKalle Valo case NL80211_IFTYPE_P2P_DEVICE: 746e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_P2P_DEVICE); 747e705c121SKalle Valo break; 748e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 749e705c121SKalle Valo cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_IBSS); 750e705c121SKalle Valo break; 751e705c121SKalle Valo default: 752e705c121SKalle Valo WARN_ON_ONCE(1); 753e705c121SKalle Valo } 754e705c121SKalle Valo 755e705c121SKalle Valo cmd->tsf_id = cpu_to_le32(mvmvif->tsf_id); 756e705c121SKalle Valo 757e705c121SKalle Valo memcpy(cmd->node_addr, vif->addr, ETH_ALEN); 758e705c121SKalle Valo 759e705c121SKalle Valo if (bssid) 760e705c121SKalle Valo memcpy(cmd->bssid_addr, bssid, ETH_ALEN); 761e705c121SKalle Valo else 762e705c121SKalle Valo eth_broadcast_addr(cmd->bssid_addr); 763e705c121SKalle Valo 764e705c121SKalle Valo rcu_read_lock(); 765e705c121SKalle Valo chanctx = rcu_dereference(vif->chanctx_conf); 766e705c121SKalle Valo iwl_mvm_ack_rates(mvm, vif, chanctx ? chanctx->def.chan->band 76757fbcce3SJohannes Berg : NL80211_BAND_2GHZ, 768e705c121SKalle Valo &cck_ack_rates, &ofdm_ack_rates); 769e705c121SKalle Valo rcu_read_unlock(); 770e705c121SKalle Valo 771e705c121SKalle Valo cmd->cck_rates = cpu_to_le32((u32)cck_ack_rates); 772e705c121SKalle Valo cmd->ofdm_rates = cpu_to_le32((u32)ofdm_ack_rates); 773e705c121SKalle Valo 774e705c121SKalle Valo cmd->cck_short_preamble = 775e705c121SKalle Valo cpu_to_le32(vif->bss_conf.use_short_preamble ? 776e705c121SKalle Valo MAC_FLG_SHORT_PREAMBLE : 0); 777e705c121SKalle Valo cmd->short_slot = 778e705c121SKalle Valo cpu_to_le32(vif->bss_conf.use_short_slot ? 779e705c121SKalle Valo MAC_FLG_SHORT_SLOT : 0); 780e705c121SKalle Valo 781bd6f5bd7SAyala Beker cmd->filter_flags = cpu_to_le32(MAC_FILTER_ACCEPT_GRP); 782bd6f5bd7SAyala Beker 783e705c121SKalle Valo for (i = 0; i < IEEE80211_NUM_ACS; i++) { 784cf6c6ea3SEmmanuel Grumbach u8 txf = iwl_mvm_mac_ac_to_tx_fifo(mvm, i); 785e705c121SKalle Valo 786e705c121SKalle Valo cmd->ac[txf].cw_min = 787e705c121SKalle Valo cpu_to_le16(mvmvif->queue_params[i].cw_min); 788e705c121SKalle Valo cmd->ac[txf].cw_max = 789e705c121SKalle Valo cpu_to_le16(mvmvif->queue_params[i].cw_max); 790e705c121SKalle Valo cmd->ac[txf].edca_txop = 791e705c121SKalle Valo cpu_to_le16(mvmvif->queue_params[i].txop * 32); 792e705c121SKalle Valo cmd->ac[txf].aifsn = mvmvif->queue_params[i].aifs; 793e705c121SKalle Valo cmd->ac[txf].fifos_mask = BIT(txf); 794e705c121SKalle Valo } 795e705c121SKalle Valo 796e705c121SKalle Valo if (vif->bss_conf.qos) 797e705c121SKalle Valo cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_UPDATE_EDCA); 798e705c121SKalle Valo 799e705c121SKalle Valo if (vif->bss_conf.use_cts_prot) 800e705c121SKalle Valo cmd->protection_flags |= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT); 801e705c121SKalle Valo 802e705c121SKalle Valo IWL_DEBUG_RATE(mvm, "use_cts_prot %d, ht_operation_mode %d\n", 803e705c121SKalle Valo vif->bss_conf.use_cts_prot, 804e705c121SKalle Valo vif->bss_conf.ht_operation_mode); 805e705c121SKalle Valo if (vif->bss_conf.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) 806e705c121SKalle Valo cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_TGN); 807e705c121SKalle Valo if (ht_enabled) 808e705c121SKalle Valo iwl_mvm_mac_ctxt_set_ht_flags(mvm, vif, cmd); 809e705c121SKalle Valo } 810e705c121SKalle Valo 811e705c121SKalle Valo static int iwl_mvm_mac_ctxt_send_cmd(struct iwl_mvm *mvm, 812e705c121SKalle Valo struct iwl_mac_ctx_cmd *cmd) 813e705c121SKalle Valo { 814e705c121SKalle Valo int ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, 0, 815e705c121SKalle Valo sizeof(*cmd), cmd); 816e705c121SKalle Valo if (ret) 817e705c121SKalle Valo IWL_ERR(mvm, "Failed to send MAC context (action:%d): %d\n", 818e705c121SKalle Valo le32_to_cpu(cmd->action), ret); 819e705c121SKalle Valo return ret; 820e705c121SKalle Valo } 821e705c121SKalle Valo 822e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_sta(struct iwl_mvm *mvm, 823e705c121SKalle Valo struct ieee80211_vif *vif, 824e705c121SKalle Valo u32 action, bool force_assoc_off, 825e705c121SKalle Valo const u8 *bssid_override) 826e705c121SKalle Valo { 827e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 828e705c121SKalle Valo struct iwl_mac_data_sta *ctxt_sta; 829e705c121SKalle Valo 830e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_STATION); 831e705c121SKalle Valo 832e705c121SKalle Valo /* Fill the common data for all mac context types */ 833e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, bssid_override, action); 834e705c121SKalle Valo 835e705c121SKalle Valo if (vif->p2p) { 836e705c121SKalle Valo struct ieee80211_p2p_noa_attr *noa = 837e705c121SKalle Valo &vif->bss_conf.p2p_noa_attr; 838e705c121SKalle Valo 839e705c121SKalle Valo cmd.p2p_sta.ctwin = cpu_to_le32(noa->oppps_ctwindow & 840e705c121SKalle Valo IEEE80211_P2P_OPPPS_CTWINDOW_MASK); 841e705c121SKalle Valo ctxt_sta = &cmd.p2p_sta.sta; 842e705c121SKalle Valo } else { 843e705c121SKalle Valo ctxt_sta = &cmd.sta; 844e705c121SKalle Valo } 845e705c121SKalle Valo 846e705c121SKalle Valo /* We need the dtim_period to set the MAC as associated */ 847e705c121SKalle Valo if (vif->bss_conf.assoc && vif->bss_conf.dtim_period && 848e705c121SKalle Valo !force_assoc_off) { 849e705c121SKalle Valo u32 dtim_offs; 850e705c121SKalle Valo 851e705c121SKalle Valo /* 852e705c121SKalle Valo * The DTIM count counts down, so when it is N that means N 853e705c121SKalle Valo * more beacon intervals happen until the DTIM TBTT. Therefore 854e705c121SKalle Valo * add this to the current time. If that ends up being in the 855e705c121SKalle Valo * future, the firmware will handle it. 856e705c121SKalle Valo * 857e705c121SKalle Valo * Also note that the system_timestamp (which we get here as 858e705c121SKalle Valo * "sync_device_ts") and TSF timestamp aren't at exactly the 859e705c121SKalle Valo * same offset in the frame -- the TSF is at the first symbol 860e705c121SKalle Valo * of the TSF, the system timestamp is at signal acquisition 861e705c121SKalle Valo * time. This means there's an offset between them of at most 862e705c121SKalle Valo * a few hundred microseconds (24 * 8 bits + PLCP time gives 863e705c121SKalle Valo * 384us in the longest case), this is currently not relevant 864e705c121SKalle Valo * as the firmware wakes up around 2ms before the TBTT. 865e705c121SKalle Valo */ 866e705c121SKalle Valo dtim_offs = vif->bss_conf.sync_dtim_count * 867e705c121SKalle Valo vif->bss_conf.beacon_int; 868e705c121SKalle Valo /* convert TU to usecs */ 869e705c121SKalle Valo dtim_offs *= 1024; 870e705c121SKalle Valo 871e705c121SKalle Valo ctxt_sta->dtim_tsf = 872e705c121SKalle Valo cpu_to_le64(vif->bss_conf.sync_tsf + dtim_offs); 873e705c121SKalle Valo ctxt_sta->dtim_time = 874e705c121SKalle Valo cpu_to_le32(vif->bss_conf.sync_device_ts + dtim_offs); 875b5669727SAvraham Stern ctxt_sta->assoc_beacon_arrive_time = 876b5669727SAvraham Stern cpu_to_le32(vif->bss_conf.sync_device_ts); 877e705c121SKalle Valo 878e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "DTIM TBTT is 0x%llx/0x%x, offset %d\n", 879e705c121SKalle Valo le64_to_cpu(ctxt_sta->dtim_tsf), 880e705c121SKalle Valo le32_to_cpu(ctxt_sta->dtim_time), 881e705c121SKalle Valo dtim_offs); 882e705c121SKalle Valo 883e705c121SKalle Valo ctxt_sta->is_assoc = cpu_to_le32(1); 884e705c121SKalle Valo } else { 885e705c121SKalle Valo ctxt_sta->is_assoc = cpu_to_le32(0); 886e705c121SKalle Valo 887e705c121SKalle Valo /* Allow beacons to pass through as long as we are not 888e705c121SKalle Valo * associated, or we do not have dtim period information. 889e705c121SKalle Valo */ 890e705c121SKalle Valo cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); 891e705c121SKalle Valo } 892e705c121SKalle Valo 893e705c121SKalle Valo ctxt_sta->bi = cpu_to_le32(vif->bss_conf.beacon_int); 894e705c121SKalle Valo ctxt_sta->bi_reciprocal = 895e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int)); 896e705c121SKalle Valo ctxt_sta->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int * 897e705c121SKalle Valo vif->bss_conf.dtim_period); 898e705c121SKalle Valo ctxt_sta->dtim_reciprocal = 899e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int * 900e705c121SKalle Valo vif->bss_conf.dtim_period)); 901e705c121SKalle Valo 902e705c121SKalle Valo ctxt_sta->listen_interval = cpu_to_le32(mvm->hw->conf.listen_interval); 903e705c121SKalle Valo ctxt_sta->assoc_id = cpu_to_le32(vif->bss_conf.aid); 904e705c121SKalle Valo 905e705c121SKalle Valo if (vif->probe_req_reg && vif->bss_conf.assoc && vif->p2p) 906e705c121SKalle Valo cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); 907e705c121SKalle Valo 908e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 909e705c121SKalle Valo } 910e705c121SKalle Valo 911e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_listener(struct iwl_mvm *mvm, 912e705c121SKalle Valo struct ieee80211_vif *vif, 913e705c121SKalle Valo u32 action) 914e705c121SKalle Valo { 915e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 9160e39eb03SChaya Rachel Ivgi u32 tfd_queue_msk = 0; 9170e39eb03SChaya Rachel Ivgi int ret, i; 918e705c121SKalle Valo 919e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_MONITOR); 920e705c121SKalle Valo 921e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 922e705c121SKalle Valo 923737847aaSLiad Kaufman if (!iwl_mvm_is_dqa_supported(mvm)) { 9240e39eb03SChaya Rachel Ivgi for (i = 0; i < IEEE80211_NUM_ACS; i++) 9250e39eb03SChaya Rachel Ivgi if (vif->hw_queue[i] != IEEE80211_INVAL_HW_QUEUE) 9260e39eb03SChaya Rachel Ivgi tfd_queue_msk |= BIT(vif->hw_queue[i]); 927737847aaSLiad Kaufman } 9280e39eb03SChaya Rachel Ivgi 929e705c121SKalle Valo cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROMISC | 930e705c121SKalle Valo MAC_FILTER_IN_CONTROL_AND_MGMT | 931e705c121SKalle Valo MAC_FILTER_IN_BEACON | 932e705c121SKalle Valo MAC_FILTER_IN_PROBE_REQUEST | 933e705c121SKalle Valo MAC_FILTER_IN_CRC32); 934e705c121SKalle Valo ieee80211_hw_set(mvm->hw, RX_INCLUDES_FCS); 935e705c121SKalle Valo 9360e39eb03SChaya Rachel Ivgi /* Allocate sniffer station */ 9370e39eb03SChaya Rachel Ivgi ret = iwl_mvm_allocate_int_sta(mvm, &mvm->snif_sta, tfd_queue_msk, 938ced19f26SSara Sharon vif->type, IWL_STA_GENERAL_PURPOSE); 9390e39eb03SChaya Rachel Ivgi if (ret) 9400e39eb03SChaya Rachel Ivgi return ret; 9410e39eb03SChaya Rachel Ivgi 942e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 943e705c121SKalle Valo } 944e705c121SKalle Valo 945e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_ibss(struct iwl_mvm *mvm, 946e705c121SKalle Valo struct ieee80211_vif *vif, 947e705c121SKalle Valo u32 action) 948e705c121SKalle Valo { 949e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 950e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 951e705c121SKalle Valo 952e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_ADHOC); 953e705c121SKalle Valo 954e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 955e705c121SKalle Valo 956e705c121SKalle Valo cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_BEACON | 957e705c121SKalle Valo MAC_FILTER_IN_PROBE_REQUEST); 958e705c121SKalle Valo 959e705c121SKalle Valo /* cmd.ibss.beacon_time/cmd.ibss.beacon_tsf are curently ignored */ 960e705c121SKalle Valo cmd.ibss.bi = cpu_to_le32(vif->bss_conf.beacon_int); 961e705c121SKalle Valo cmd.ibss.bi_reciprocal = 962e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int)); 963e705c121SKalle Valo 964e705c121SKalle Valo /* TODO: Assumes that the beacon id == mac context id */ 965e705c121SKalle Valo cmd.ibss.beacon_template = cpu_to_le32(mvmvif->id); 966e705c121SKalle Valo 967e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 968e705c121SKalle Valo } 969e705c121SKalle Valo 970e705c121SKalle Valo struct iwl_mvm_go_iterator_data { 971e705c121SKalle Valo bool go_active; 972e705c121SKalle Valo }; 973e705c121SKalle Valo 974e705c121SKalle Valo static void iwl_mvm_go_iterator(void *_data, u8 *mac, struct ieee80211_vif *vif) 975e705c121SKalle Valo { 976e705c121SKalle Valo struct iwl_mvm_go_iterator_data *data = _data; 977e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 978e705c121SKalle Valo 979e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP && vif->p2p && 980e705c121SKalle Valo mvmvif->ap_ibss_active) 981e705c121SKalle Valo data->go_active = true; 982e705c121SKalle Valo } 983e705c121SKalle Valo 984e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_p2p_device(struct iwl_mvm *mvm, 985e705c121SKalle Valo struct ieee80211_vif *vif, 986e705c121SKalle Valo u32 action) 987e705c121SKalle Valo { 988e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 989e705c121SKalle Valo struct iwl_mvm_go_iterator_data data = {}; 990e705c121SKalle Valo 991e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_P2P_DEVICE); 992e705c121SKalle Valo 993e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 994e705c121SKalle Valo 995e705c121SKalle Valo cmd.protection_flags |= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT); 996e705c121SKalle Valo 997e705c121SKalle Valo /* Override the filter flags to accept only probe requests */ 998e705c121SKalle Valo cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); 999e705c121SKalle Valo 1000e705c121SKalle Valo /* 1001e705c121SKalle Valo * This flag should be set to true when the P2P Device is 1002e705c121SKalle Valo * discoverable and there is at least another active P2P GO. Settings 1003e705c121SKalle Valo * this flag will allow the P2P Device to be discoverable on other 1004e705c121SKalle Valo * channels in addition to its listen channel. 1005e705c121SKalle Valo * Note that this flag should not be set in other cases as it opens the 1006e705c121SKalle Valo * Rx filters on all MAC and increases the number of interrupts. 1007e705c121SKalle Valo */ 1008e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 1009e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 1010e705c121SKalle Valo iwl_mvm_go_iterator, &data); 1011e705c121SKalle Valo 1012e705c121SKalle Valo cmd.p2p_dev.is_disc_extended = cpu_to_le32(data.go_active ? 1 : 0); 1013e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 1014e705c121SKalle Valo } 1015e705c121SKalle Valo 1016e705c121SKalle Valo static void iwl_mvm_mac_ctxt_set_tim(struct iwl_mvm *mvm, 10178364fbb4SSara Sharon __le32 *tim_index, __le32 *tim_size, 1018e705c121SKalle Valo u8 *beacon, u32 frame_size) 1019e705c121SKalle Valo { 1020e705c121SKalle Valo u32 tim_idx; 1021e705c121SKalle Valo struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon; 1022e705c121SKalle Valo 1023e705c121SKalle Valo /* The index is relative to frame start but we start looking at the 1024e705c121SKalle Valo * variable-length part of the beacon. */ 1025e705c121SKalle Valo tim_idx = mgmt->u.beacon.variable - beacon; 1026e705c121SKalle Valo 1027e705c121SKalle Valo /* Parse variable-length elements of beacon to find WLAN_EID_TIM */ 1028e705c121SKalle Valo while ((tim_idx < (frame_size - 2)) && 1029e705c121SKalle Valo (beacon[tim_idx] != WLAN_EID_TIM)) 1030e705c121SKalle Valo tim_idx += beacon[tim_idx+1] + 2; 1031e705c121SKalle Valo 1032e705c121SKalle Valo /* If TIM field was found, set variables */ 1033e705c121SKalle Valo if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) { 10348364fbb4SSara Sharon *tim_index = cpu_to_le32(tim_idx); 10358364fbb4SSara Sharon *tim_size = cpu_to_le32((u32)beacon[tim_idx + 1]); 1036e705c121SKalle Valo } else { 1037e705c121SKalle Valo IWL_WARN(mvm, "Unable to find TIM Element in beacon\n"); 1038e705c121SKalle Valo } 1039e705c121SKalle Valo } 1040e705c121SKalle Valo 1041d3a108a4SAndrei Otcheretianski static u32 iwl_mvm_find_ie_offset(u8 *beacon, u8 eid, u32 frame_size) 1042d3a108a4SAndrei Otcheretianski { 1043d3a108a4SAndrei Otcheretianski struct ieee80211_mgmt *mgmt = (void *)beacon; 1044d3a108a4SAndrei Otcheretianski const u8 *ie; 1045d3a108a4SAndrei Otcheretianski 1046d3a108a4SAndrei Otcheretianski if (WARN_ON_ONCE(frame_size <= (mgmt->u.beacon.variable - beacon))) 1047d3a108a4SAndrei Otcheretianski return 0; 1048d3a108a4SAndrei Otcheretianski 1049d3a108a4SAndrei Otcheretianski frame_size -= mgmt->u.beacon.variable - beacon; 1050d3a108a4SAndrei Otcheretianski 1051d3a108a4SAndrei Otcheretianski ie = cfg80211_find_ie(eid, mgmt->u.beacon.variable, frame_size); 1052d3a108a4SAndrei Otcheretianski if (!ie) 1053d3a108a4SAndrei Otcheretianski return 0; 1054d3a108a4SAndrei Otcheretianski 1055d3a108a4SAndrei Otcheretianski return ie - beacon; 1056d3a108a4SAndrei Otcheretianski } 1057d3a108a4SAndrei Otcheretianski 105809856582SLuca Coelho static void iwl_mvm_mac_ctxt_set_tx(struct iwl_mvm *mvm, 1059e705c121SKalle Valo struct ieee80211_vif *vif, 106009856582SLuca Coelho struct sk_buff *beacon, 106109856582SLuca Coelho struct iwl_tx_cmd *tx) 1062e705c121SKalle Valo { 1063e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1064e705c121SKalle Valo struct ieee80211_tx_info *info; 1065e705c121SKalle Valo u32 rate, tx_flags; 1066e705c121SKalle Valo 1067e705c121SKalle Valo info = IEEE80211_SKB_CB(beacon); 1068e705c121SKalle Valo 1069e705c121SKalle Valo /* Set up TX command fields */ 107009856582SLuca Coelho tx->len = cpu_to_le16((u16)beacon->len); 107109856582SLuca Coelho tx->sta_id = mvmvif->bcast_sta.sta_id; 107209856582SLuca Coelho tx->life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE); 1073e705c121SKalle Valo tx_flags = TX_CMD_FLG_SEQ_CTL | TX_CMD_FLG_TSF; 1074e705c121SKalle Valo tx_flags |= 1075e705c121SKalle Valo iwl_mvm_bt_coex_tx_prio(mvm, (void *)beacon->data, info, 0) << 1076e705c121SKalle Valo TX_CMD_FLG_BT_PRIO_POS; 107709856582SLuca Coelho tx->tx_flags = cpu_to_le32(tx_flags); 1078e705c121SKalle Valo 10791e3c3c35SEmmanuel Grumbach if (!fw_has_capa(&mvm->fw->ucode_capa, 10801e3c3c35SEmmanuel Grumbach IWL_UCODE_TLV_CAPA_BEACON_ANT_SELECTION)) { 1081e705c121SKalle Valo mvm->mgmt_last_antenna_idx = 1082e705c121SKalle Valo iwl_mvm_next_antenna(mvm, iwl_mvm_get_valid_tx_ant(mvm), 1083e705c121SKalle Valo mvm->mgmt_last_antenna_idx); 10841e3c3c35SEmmanuel Grumbach } 1085e705c121SKalle Valo 108609856582SLuca Coelho tx->rate_n_flags = 1087e705c121SKalle Valo cpu_to_le32(BIT(mvm->mgmt_last_antenna_idx) << 1088e705c121SKalle Valo RATE_MCS_ANT_POS); 1089e705c121SKalle Valo 109057fbcce3SJohannes Berg if (info->band == NL80211_BAND_5GHZ || vif->p2p) { 1091e705c121SKalle Valo rate = IWL_FIRST_OFDM_RATE; 1092e705c121SKalle Valo } else { 1093e705c121SKalle Valo rate = IWL_FIRST_CCK_RATE; 109409856582SLuca Coelho tx->rate_n_flags |= cpu_to_le32(RATE_MCS_CCK_MSK); 1095e705c121SKalle Valo } 1096e705c121SKalle Valo 109709856582SLuca Coelho tx->rate_n_flags |= cpu_to_le32(iwl_mvm_mac80211_idx_to_hwrate(rate)); 109809856582SLuca Coelho } 1099e705c121SKalle Valo 110009856582SLuca Coelho static int iwl_mvm_mac_ctxt_send_beacon_cmd(struct iwl_mvm *mvm, 110109856582SLuca Coelho struct sk_buff *beacon, 110209856582SLuca Coelho void *data, int len) 110309856582SLuca Coelho { 110409856582SLuca Coelho struct iwl_host_cmd cmd = { 110509856582SLuca Coelho .id = BEACON_TEMPLATE_CMD, 110609856582SLuca Coelho .flags = CMD_ASYNC, 110709856582SLuca Coelho }; 110809856582SLuca Coelho 110909856582SLuca Coelho cmd.len[0] = len; 111009856582SLuca Coelho cmd.data[0] = data; 1111e705c121SKalle Valo cmd.dataflags[0] = 0; 111209856582SLuca Coelho cmd.len[1] = beacon->len; 1113e705c121SKalle Valo cmd.data[1] = beacon->data; 1114e705c121SKalle Valo cmd.dataflags[1] = IWL_HCMD_DFL_DUP; 1115e705c121SKalle Valo 1116e705c121SKalle Valo return iwl_mvm_send_cmd(mvm, &cmd); 1117e705c121SKalle Valo } 1118e705c121SKalle Valo 111909856582SLuca Coelho static int iwl_mvm_mac_ctxt_send_beacon_v6(struct iwl_mvm *mvm, 112009856582SLuca Coelho struct ieee80211_vif *vif, 112109856582SLuca Coelho struct sk_buff *beacon) 112209856582SLuca Coelho { 112309856582SLuca Coelho struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 112409856582SLuca Coelho struct iwl_mac_beacon_cmd_v6 beacon_cmd = {}; 112509856582SLuca Coelho 112609856582SLuca Coelho iwl_mvm_mac_ctxt_set_tx(mvm, vif, beacon, &beacon_cmd.tx); 112709856582SLuca Coelho 112809856582SLuca Coelho beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); 112909856582SLuca Coelho 113009856582SLuca Coelho if (vif->type == NL80211_IFTYPE_AP) 113109856582SLuca Coelho iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, 113209856582SLuca Coelho &beacon_cmd.tim_size, 113309856582SLuca Coelho beacon->data, beacon->len); 113409856582SLuca Coelho 113509856582SLuca Coelho return iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, 113609856582SLuca Coelho sizeof(beacon_cmd)); 113709856582SLuca Coelho } 113809856582SLuca Coelho 113909856582SLuca Coelho static int iwl_mvm_mac_ctxt_send_beacon_v7(struct iwl_mvm *mvm, 114009856582SLuca Coelho struct ieee80211_vif *vif, 114109856582SLuca Coelho struct sk_buff *beacon) 114209856582SLuca Coelho { 114309856582SLuca Coelho struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 114409856582SLuca Coelho struct iwl_mac_beacon_cmd_v7 beacon_cmd = {}; 114509856582SLuca Coelho 114609856582SLuca Coelho iwl_mvm_mac_ctxt_set_tx(mvm, vif, beacon, &beacon_cmd.tx); 114709856582SLuca Coelho 114809856582SLuca Coelho beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); 114909856582SLuca Coelho 115009856582SLuca Coelho if (vif->type == NL80211_IFTYPE_AP) 115109856582SLuca Coelho iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, 115209856582SLuca Coelho &beacon_cmd.tim_size, 115309856582SLuca Coelho beacon->data, beacon->len); 115409856582SLuca Coelho 115509856582SLuca Coelho beacon_cmd.csa_offset = 115609856582SLuca Coelho cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, 115709856582SLuca Coelho WLAN_EID_CHANNEL_SWITCH, 115809856582SLuca Coelho beacon->len)); 115909856582SLuca Coelho beacon_cmd.ecsa_offset = 116009856582SLuca Coelho cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, 116109856582SLuca Coelho WLAN_EID_EXT_CHANSWITCH_ANN, 116209856582SLuca Coelho beacon->len)); 116309856582SLuca Coelho 116409856582SLuca Coelho return iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, 116509856582SLuca Coelho sizeof(beacon_cmd)); 116609856582SLuca Coelho } 116709856582SLuca Coelho 116809856582SLuca Coelho static int iwl_mvm_mac_ctxt_send_beacon_v8(struct iwl_mvm *mvm, 116909856582SLuca Coelho struct ieee80211_vif *vif, 117009856582SLuca Coelho struct sk_buff *beacon) 117109856582SLuca Coelho { 117209856582SLuca Coelho struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 117309856582SLuca Coelho struct iwl_mac_beacon_cmd beacon_cmd = {}; 117409856582SLuca Coelho 117509856582SLuca Coelho beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len); 117609856582SLuca Coelho beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); 117709856582SLuca Coelho 117809856582SLuca Coelho if (vif->type == NL80211_IFTYPE_AP) 117909856582SLuca Coelho iwl_mvm_mac_ctxt_set_tim(mvm, 118009856582SLuca Coelho &beacon_cmd.tim_idx, 118109856582SLuca Coelho &beacon_cmd.tim_size, 118209856582SLuca Coelho beacon->data, beacon->len); 118309856582SLuca Coelho 118409856582SLuca Coelho beacon_cmd.csa_offset = 118509856582SLuca Coelho cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, 118609856582SLuca Coelho WLAN_EID_CHANNEL_SWITCH, 118709856582SLuca Coelho beacon->len)); 118809856582SLuca Coelho beacon_cmd.ecsa_offset = 118909856582SLuca Coelho cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, 119009856582SLuca Coelho WLAN_EID_EXT_CHANSWITCH_ANN, 119109856582SLuca Coelho beacon->len)); 119209856582SLuca Coelho 119309856582SLuca Coelho return iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, 119409856582SLuca Coelho sizeof(beacon_cmd)); 119509856582SLuca Coelho } 119609856582SLuca Coelho 119709856582SLuca Coelho static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm, 119809856582SLuca Coelho struct ieee80211_vif *vif, 119909856582SLuca Coelho struct sk_buff *beacon) 120009856582SLuca Coelho { 120109856582SLuca Coelho if (WARN_ON(!beacon)) 120209856582SLuca Coelho return -EINVAL; 120309856582SLuca Coelho 120409856582SLuca Coelho if (!fw_has_capa(&mvm->fw->ucode_capa, 120509856582SLuca Coelho IWL_UCODE_TLV_CAPA_CSA_AND_TBTT_OFFLOAD)) 120609856582SLuca Coelho return iwl_mvm_mac_ctxt_send_beacon_v6(mvm, vif, beacon); 120709856582SLuca Coelho 120809856582SLuca Coelho if (!iwl_mvm_has_new_tx_api(mvm)) 120909856582SLuca Coelho return iwl_mvm_mac_ctxt_send_beacon_v7(mvm, vif, beacon); 121009856582SLuca Coelho 121109856582SLuca Coelho return iwl_mvm_mac_ctxt_send_beacon_v8(mvm, vif, beacon); 121209856582SLuca Coelho } 121309856582SLuca Coelho 1214e705c121SKalle Valo /* The beacon template for the AP/GO/IBSS has changed and needs update */ 1215e705c121SKalle Valo int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm, 1216e705c121SKalle Valo struct ieee80211_vif *vif) 1217e705c121SKalle Valo { 1218e705c121SKalle Valo struct sk_buff *beacon; 1219e705c121SKalle Valo int ret; 1220e705c121SKalle Valo 1221e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_AP && 1222e705c121SKalle Valo vif->type != NL80211_IFTYPE_ADHOC); 1223e705c121SKalle Valo 1224e705c121SKalle Valo beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL); 1225e705c121SKalle Valo if (!beacon) 1226e705c121SKalle Valo return -ENOMEM; 1227e705c121SKalle Valo 1228e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_send_beacon(mvm, vif, beacon); 1229e705c121SKalle Valo dev_kfree_skb(beacon); 1230e705c121SKalle Valo return ret; 1231e705c121SKalle Valo } 1232e705c121SKalle Valo 1233e705c121SKalle Valo struct iwl_mvm_mac_ap_iterator_data { 1234e705c121SKalle Valo struct iwl_mvm *mvm; 1235e705c121SKalle Valo struct ieee80211_vif *vif; 1236e705c121SKalle Valo u32 beacon_device_ts; 1237e705c121SKalle Valo u16 beacon_int; 1238e705c121SKalle Valo }; 1239e705c121SKalle Valo 1240e705c121SKalle Valo /* Find the beacon_device_ts and beacon_int for a managed interface */ 1241e705c121SKalle Valo static void iwl_mvm_mac_ap_iterator(void *_data, u8 *mac, 1242e705c121SKalle Valo struct ieee80211_vif *vif) 1243e705c121SKalle Valo { 1244e705c121SKalle Valo struct iwl_mvm_mac_ap_iterator_data *data = _data; 1245e705c121SKalle Valo 1246e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc) 1247e705c121SKalle Valo return; 1248e705c121SKalle Valo 1249e705c121SKalle Valo /* Station client has higher priority over P2P client*/ 1250e705c121SKalle Valo if (vif->p2p && data->beacon_device_ts) 1251e705c121SKalle Valo return; 1252e705c121SKalle Valo 1253e705c121SKalle Valo data->beacon_device_ts = vif->bss_conf.sync_device_ts; 1254e705c121SKalle Valo data->beacon_int = vif->bss_conf.beacon_int; 1255e705c121SKalle Valo } 1256e705c121SKalle Valo 1257e705c121SKalle Valo /* 1258e705c121SKalle Valo * Fill the specific data for mac context of type AP of P2P GO 1259e705c121SKalle Valo */ 1260e705c121SKalle Valo static void iwl_mvm_mac_ctxt_cmd_fill_ap(struct iwl_mvm *mvm, 1261e705c121SKalle Valo struct ieee80211_vif *vif, 1262186cd49aSJohannes Berg struct iwl_mac_ctx_cmd *cmd, 1263e705c121SKalle Valo struct iwl_mac_data_ap *ctxt_ap, 1264e705c121SKalle Valo bool add) 1265e705c121SKalle Valo { 1266e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1267e705c121SKalle Valo struct iwl_mvm_mac_ap_iterator_data data = { 1268e705c121SKalle Valo .mvm = mvm, 1269e705c121SKalle Valo .vif = vif, 1270e705c121SKalle Valo .beacon_device_ts = 0 1271e705c121SKalle Valo }; 1272e705c121SKalle Valo 1273186cd49aSJohannes Berg /* in AP mode, the MCAST FIFO takes the EDCA params from VO */ 1274186cd49aSJohannes Berg cmd->ac[IWL_MVM_TX_FIFO_VO].fifos_mask |= BIT(IWL_MVM_TX_FIFO_MCAST); 1275186cd49aSJohannes Berg 1276186cd49aSJohannes Berg /* 1277186cd49aSJohannes Berg * in AP mode, pass probe requests and beacons from other APs 1278186cd49aSJohannes Berg * (needed for ht protection); when there're no any associated 1279186cd49aSJohannes Berg * station don't ask FW to pass beacons to prevent unnecessary 1280186cd49aSJohannes Berg * wake-ups. 1281186cd49aSJohannes Berg */ 1282186cd49aSJohannes Berg cmd->filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); 1283186cd49aSJohannes Berg if (mvmvif->ap_assoc_sta_count || !mvm->drop_bcn_ap_mode) { 1284186cd49aSJohannes Berg cmd->filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); 1285186cd49aSJohannes Berg IWL_DEBUG_HC(mvm, "Asking FW to pass beacons\n"); 1286186cd49aSJohannes Berg } else { 1287186cd49aSJohannes Berg IWL_DEBUG_HC(mvm, "No need to receive beacons\n"); 1288186cd49aSJohannes Berg } 1289186cd49aSJohannes Berg 1290e705c121SKalle Valo ctxt_ap->bi = cpu_to_le32(vif->bss_conf.beacon_int); 1291e705c121SKalle Valo ctxt_ap->bi_reciprocal = 1292e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int)); 1293e705c121SKalle Valo ctxt_ap->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int * 1294e705c121SKalle Valo vif->bss_conf.dtim_period); 1295e705c121SKalle Valo ctxt_ap->dtim_reciprocal = 1296e705c121SKalle Valo cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int * 1297e705c121SKalle Valo vif->bss_conf.dtim_period)); 1298e705c121SKalle Valo 1299ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, 1300ced19f26SSara Sharon IWL_UCODE_TLV_API_STA_TYPE)) 1301e705c121SKalle Valo ctxt_ap->mcast_qid = cpu_to_le32(vif->cab_queue); 1302e705c121SKalle Valo 1303e705c121SKalle Valo /* 1304e705c121SKalle Valo * Only set the beacon time when the MAC is being added, when we 1305e705c121SKalle Valo * just modify the MAC then we should keep the time -- the firmware 1306e705c121SKalle Valo * can otherwise have a "jumping" TBTT. 1307e705c121SKalle Valo */ 1308e705c121SKalle Valo if (add) { 1309e705c121SKalle Valo /* 1310e705c121SKalle Valo * If there is a station/P2P client interface which is 1311e705c121SKalle Valo * associated, set the AP's TBTT far enough from the station's 1312e705c121SKalle Valo * TBTT. Otherwise, set it to the current system time 1313e705c121SKalle Valo */ 1314e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 1315e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, 1316e705c121SKalle Valo iwl_mvm_mac_ap_iterator, &data); 1317e705c121SKalle Valo 1318e705c121SKalle Valo if (data.beacon_device_ts) { 1319e705c121SKalle Valo u32 rand = (prandom_u32() % (64 - 36)) + 36; 1320e705c121SKalle Valo mvmvif->ap_beacon_time = data.beacon_device_ts + 1321e705c121SKalle Valo ieee80211_tu_to_usec(data.beacon_int * rand / 1322e705c121SKalle Valo 100); 1323e705c121SKalle Valo } else { 1324e705c121SKalle Valo mvmvif->ap_beacon_time = 1325e705c121SKalle Valo iwl_read_prph(mvm->trans, 1326e705c121SKalle Valo DEVICE_SYSTEM_TIME_REG); 1327e705c121SKalle Valo } 1328e705c121SKalle Valo } 1329e705c121SKalle Valo 1330e705c121SKalle Valo ctxt_ap->beacon_time = cpu_to_le32(mvmvif->ap_beacon_time); 1331e705c121SKalle Valo ctxt_ap->beacon_tsf = 0; /* unused */ 1332e705c121SKalle Valo 1333e705c121SKalle Valo /* TODO: Assume that the beacon id == mac context id */ 1334e705c121SKalle Valo ctxt_ap->beacon_template = cpu_to_le32(mvmvif->id); 1335e705c121SKalle Valo } 1336e705c121SKalle Valo 1337e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_ap(struct iwl_mvm *mvm, 1338e705c121SKalle Valo struct ieee80211_vif *vif, 1339e705c121SKalle Valo u32 action) 1340e705c121SKalle Valo { 1341e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 1342e705c121SKalle Valo 1343e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_AP || vif->p2p); 1344e705c121SKalle Valo 1345e705c121SKalle Valo /* Fill the common data for all mac context types */ 1346e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 1347e705c121SKalle Valo 1348e705c121SKalle Valo /* Fill the data specific for ap mode */ 1349186cd49aSJohannes Berg iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd, &cmd.ap, 1350e705c121SKalle Valo action == FW_CTXT_ACTION_ADD); 1351e705c121SKalle Valo 1352e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 1353e705c121SKalle Valo } 1354e705c121SKalle Valo 1355e705c121SKalle Valo static int iwl_mvm_mac_ctxt_cmd_go(struct iwl_mvm *mvm, 1356e705c121SKalle Valo struct ieee80211_vif *vif, 1357e705c121SKalle Valo u32 action) 1358e705c121SKalle Valo { 1359e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd = {}; 1360e705c121SKalle Valo struct ieee80211_p2p_noa_attr *noa = &vif->bss_conf.p2p_noa_attr; 1361e705c121SKalle Valo 1362e705c121SKalle Valo WARN_ON(vif->type != NL80211_IFTYPE_AP || !vif->p2p); 1363e705c121SKalle Valo 1364e705c121SKalle Valo /* Fill the common data for all mac context types */ 1365e705c121SKalle Valo iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); 1366e705c121SKalle Valo 1367e705c121SKalle Valo /* Fill the data specific for GO mode */ 1368186cd49aSJohannes Berg iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd, &cmd.go.ap, 1369e705c121SKalle Valo action == FW_CTXT_ACTION_ADD); 1370e705c121SKalle Valo 1371e705c121SKalle Valo cmd.go.ctwin = cpu_to_le32(noa->oppps_ctwindow & 1372e705c121SKalle Valo IEEE80211_P2P_OPPPS_CTWINDOW_MASK); 1373e705c121SKalle Valo cmd.go.opp_ps_enabled = 1374e705c121SKalle Valo cpu_to_le32(!!(noa->oppps_ctwindow & 1375e705c121SKalle Valo IEEE80211_P2P_OPPPS_ENABLE_BIT)); 1376e705c121SKalle Valo 1377e705c121SKalle Valo return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); 1378e705c121SKalle Valo } 1379e705c121SKalle Valo 1380e705c121SKalle Valo static int iwl_mvm_mac_ctx_send(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1381e705c121SKalle Valo u32 action, bool force_assoc_off, 1382e705c121SKalle Valo const u8 *bssid_override) 1383e705c121SKalle Valo { 1384e705c121SKalle Valo switch (vif->type) { 1385e705c121SKalle Valo case NL80211_IFTYPE_STATION: 1386e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_sta(mvm, vif, action, 1387e705c121SKalle Valo force_assoc_off, 1388e705c121SKalle Valo bssid_override); 1389e705c121SKalle Valo break; 1390e705c121SKalle Valo case NL80211_IFTYPE_AP: 1391e705c121SKalle Valo if (!vif->p2p) 1392e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_ap(mvm, vif, action); 1393e705c121SKalle Valo else 1394e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_go(mvm, vif, action); 1395e705c121SKalle Valo break; 1396e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 1397e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_listener(mvm, vif, action); 1398e705c121SKalle Valo case NL80211_IFTYPE_P2P_DEVICE: 1399e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_p2p_device(mvm, vif, action); 1400e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 1401e705c121SKalle Valo return iwl_mvm_mac_ctxt_cmd_ibss(mvm, vif, action); 1402e705c121SKalle Valo default: 1403e705c121SKalle Valo break; 1404e705c121SKalle Valo } 1405e705c121SKalle Valo 1406e705c121SKalle Valo return -EOPNOTSUPP; 1407e705c121SKalle Valo } 1408e705c121SKalle Valo 1409e705c121SKalle Valo int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1410e705c121SKalle Valo { 1411e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1412e705c121SKalle Valo int ret; 1413e705c121SKalle Valo 1414e705c121SKalle Valo if (WARN_ONCE(mvmvif->uploaded, "Adding active MAC %pM/%d\n", 1415e705c121SKalle Valo vif->addr, ieee80211_vif_type_p2p(vif))) 1416e705c121SKalle Valo return -EIO; 1417e705c121SKalle Valo 1418e705c121SKalle Valo ret = iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_ADD, 1419e705c121SKalle Valo true, NULL); 1420e705c121SKalle Valo if (ret) 1421e705c121SKalle Valo return ret; 1422e705c121SKalle Valo 1423e705c121SKalle Valo /* will only do anything at resume from D3 time */ 1424e705c121SKalle Valo iwl_mvm_set_last_nonqos_seq(mvm, vif); 1425e705c121SKalle Valo 1426e705c121SKalle Valo mvmvif->uploaded = true; 1427e705c121SKalle Valo return 0; 1428e705c121SKalle Valo } 1429e705c121SKalle Valo 1430e705c121SKalle Valo int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1431e705c121SKalle Valo bool force_assoc_off, const u8 *bssid_override) 1432e705c121SKalle Valo { 1433e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1434e705c121SKalle Valo 1435e705c121SKalle Valo if (WARN_ONCE(!mvmvif->uploaded, "Changing inactive MAC %pM/%d\n", 1436e705c121SKalle Valo vif->addr, ieee80211_vif_type_p2p(vif))) 1437e705c121SKalle Valo return -EIO; 1438e705c121SKalle Valo 1439e705c121SKalle Valo return iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_MODIFY, 1440e705c121SKalle Valo force_assoc_off, bssid_override); 1441e705c121SKalle Valo } 1442e705c121SKalle Valo 1443e705c121SKalle Valo int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1444e705c121SKalle Valo { 1445e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1446e705c121SKalle Valo struct iwl_mac_ctx_cmd cmd; 1447e705c121SKalle Valo int ret; 1448e705c121SKalle Valo 1449e705c121SKalle Valo if (WARN_ONCE(!mvmvif->uploaded, "Removing inactive MAC %pM/%d\n", 1450e705c121SKalle Valo vif->addr, ieee80211_vif_type_p2p(vif))) 1451e705c121SKalle Valo return -EIO; 1452e705c121SKalle Valo 1453e705c121SKalle Valo memset(&cmd, 0, sizeof(cmd)); 1454e705c121SKalle Valo 1455e705c121SKalle Valo cmd.id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1456e705c121SKalle Valo mvmvif->color)); 1457e705c121SKalle Valo cmd.action = cpu_to_le32(FW_CTXT_ACTION_REMOVE); 1458e705c121SKalle Valo 1459e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, 0, 1460e705c121SKalle Valo sizeof(cmd), &cmd); 1461e705c121SKalle Valo if (ret) { 1462e705c121SKalle Valo IWL_ERR(mvm, "Failed to remove MAC context: %d\n", ret); 1463e705c121SKalle Valo return ret; 1464e705c121SKalle Valo } 1465e705c121SKalle Valo 1466e705c121SKalle Valo mvmvif->uploaded = false; 1467e705c121SKalle Valo 14680e39eb03SChaya Rachel Ivgi if (vif->type == NL80211_IFTYPE_MONITOR) { 1469e705c121SKalle Valo __clear_bit(IEEE80211_HW_RX_INCLUDES_FCS, mvm->hw->flags); 14700e39eb03SChaya Rachel Ivgi iwl_mvm_dealloc_snif_sta(mvm); 14710e39eb03SChaya Rachel Ivgi } 1472e705c121SKalle Valo 1473e705c121SKalle Valo return 0; 1474e705c121SKalle Valo } 1475e705c121SKalle Valo 1476e705c121SKalle Valo static void iwl_mvm_csa_count_down(struct iwl_mvm *mvm, 1477e705c121SKalle Valo struct ieee80211_vif *csa_vif, u32 gp2, 1478e705c121SKalle Valo bool tx_success) 1479e705c121SKalle Valo { 1480e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = 1481e705c121SKalle Valo iwl_mvm_vif_from_mac80211(csa_vif); 1482e705c121SKalle Valo 1483e705c121SKalle Valo /* Don't start to countdown from a failed beacon */ 1484e705c121SKalle Valo if (!tx_success && !mvmvif->csa_countdown) 1485e705c121SKalle Valo return; 1486e705c121SKalle Valo 1487e705c121SKalle Valo mvmvif->csa_countdown = true; 1488e705c121SKalle Valo 1489e705c121SKalle Valo if (!ieee80211_csa_is_complete(csa_vif)) { 1490e705c121SKalle Valo int c = ieee80211_csa_update_counter(csa_vif); 1491e705c121SKalle Valo 1492e705c121SKalle Valo iwl_mvm_mac_ctxt_beacon_changed(mvm, csa_vif); 1493e705c121SKalle Valo if (csa_vif->p2p && 1494e705c121SKalle Valo !iwl_mvm_te_scheduled(&mvmvif->time_event_data) && gp2 && 1495e705c121SKalle Valo tx_success) { 1496e705c121SKalle Valo u32 rel_time = (c + 1) * 1497e705c121SKalle Valo csa_vif->bss_conf.beacon_int - 1498e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_TIME_GO; 1499e705c121SKalle Valo u32 apply_time = gp2 + rel_time * 1024; 1500e705c121SKalle Valo 1501e705c121SKalle Valo iwl_mvm_schedule_csa_period(mvm, csa_vif, 1502e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_TIME_GO - 1503e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_MARGIN, 1504e705c121SKalle Valo apply_time); 1505e705c121SKalle Valo } 1506e705c121SKalle Valo } else if (!iwl_mvm_te_scheduled(&mvmvif->time_event_data)) { 1507e705c121SKalle Valo /* we don't have CSA NoA scheduled yet, switch now */ 1508e705c121SKalle Valo ieee80211_csa_finish(csa_vif); 1509e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_vif, NULL); 1510e705c121SKalle Valo } 1511e705c121SKalle Valo } 1512e705c121SKalle Valo 1513e705c121SKalle Valo void iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm, 1514e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 1515e705c121SKalle Valo { 1516e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 1517e705c121SKalle Valo struct iwl_extended_beacon_notif *beacon = (void *)pkt->data; 1518e705c121SKalle Valo struct iwl_mvm_tx_resp *beacon_notify_hdr; 1519e705c121SKalle Valo struct ieee80211_vif *csa_vif; 1520e705c121SKalle Valo struct ieee80211_vif *tx_blocked_vif; 152112db294cSSara Sharon struct agg_tx_status *agg_status; 1522e705c121SKalle Valo u16 status; 1523e705c121SKalle Valo 1524e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1525e705c121SKalle Valo 1526e705c121SKalle Valo beacon_notify_hdr = &beacon->beacon_notify_hdr; 1527e705c121SKalle Valo mvm->ap_last_beacon_gp2 = le32_to_cpu(beacon->gp2); 15282f0282dbSJohannes Berg mvm->ibss_manager = beacon->ibss_mgr_status != 0; 1529e705c121SKalle Valo 153012db294cSSara Sharon agg_status = iwl_mvm_get_agg_status(mvm, beacon_notify_hdr); 153112db294cSSara Sharon status = le16_to_cpu(agg_status->status) & TX_STATUS_MSK; 1532e705c121SKalle Valo IWL_DEBUG_RX(mvm, 1533e705c121SKalle Valo "beacon status %#x retries:%d tsf:0x%16llX gp2:0x%X rate:%d\n", 1534e705c121SKalle Valo status, beacon_notify_hdr->failure_frame, 1535e705c121SKalle Valo le64_to_cpu(beacon->tsf), 1536e705c121SKalle Valo mvm->ap_last_beacon_gp2, 1537e705c121SKalle Valo le32_to_cpu(beacon_notify_hdr->initial_rate)); 1538e705c121SKalle Valo 1539e705c121SKalle Valo csa_vif = rcu_dereference_protected(mvm->csa_vif, 1540e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1541e705c121SKalle Valo if (unlikely(csa_vif && csa_vif->csa_active)) 1542e705c121SKalle Valo iwl_mvm_csa_count_down(mvm, csa_vif, mvm->ap_last_beacon_gp2, 1543e705c121SKalle Valo (status == TX_STATUS_SUCCESS)); 1544e705c121SKalle Valo 1545e705c121SKalle Valo tx_blocked_vif = rcu_dereference_protected(mvm->csa_tx_blocked_vif, 1546e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 1547e705c121SKalle Valo if (unlikely(tx_blocked_vif)) { 1548e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = 1549e705c121SKalle Valo iwl_mvm_vif_from_mac80211(tx_blocked_vif); 1550e705c121SKalle Valo 1551e705c121SKalle Valo /* 1552e705c121SKalle Valo * The channel switch is started and we have blocked the 1553e705c121SKalle Valo * stations. If this is the first beacon (the timeout wasn't 1554e705c121SKalle Valo * set), set the unblock timeout, otherwise countdown 1555e705c121SKalle Valo */ 1556e705c121SKalle Valo if (!mvm->csa_tx_block_bcn_timeout) 1557e705c121SKalle Valo mvm->csa_tx_block_bcn_timeout = 1558e705c121SKalle Valo IWL_MVM_CS_UNBLOCK_TX_TIMEOUT; 1559e705c121SKalle Valo else 1560e705c121SKalle Valo mvm->csa_tx_block_bcn_timeout--; 1561e705c121SKalle Valo 1562e705c121SKalle Valo /* Check if the timeout is expired, and unblock tx */ 1563e705c121SKalle Valo if (mvm->csa_tx_block_bcn_timeout == 0) { 1564e705c121SKalle Valo iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 1565e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 1566e705c121SKalle Valo } 1567e705c121SKalle Valo } 1568e705c121SKalle Valo } 1569e705c121SKalle Valo 1570e705c121SKalle Valo static void iwl_mvm_beacon_loss_iterator(void *_data, u8 *mac, 1571e705c121SKalle Valo struct ieee80211_vif *vif) 1572e705c121SKalle Valo { 1573e705c121SKalle Valo struct iwl_missed_beacons_notif *missed_beacons = _data; 1574e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1575e705c121SKalle Valo struct iwl_mvm *mvm = mvmvif->mvm; 1576e705c121SKalle Valo struct iwl_fw_dbg_trigger_missed_bcon *bcon_trig; 1577e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trigger; 1578e705c121SKalle Valo u32 stop_trig_missed_bcon, stop_trig_missed_bcon_since_rx; 1579e705c121SKalle Valo u32 rx_missed_bcon, rx_missed_bcon_since_rx; 1580e705c121SKalle Valo 1581e705c121SKalle Valo if (mvmvif->id != (u16)le32_to_cpu(missed_beacons->mac_id)) 1582e705c121SKalle Valo return; 1583e705c121SKalle Valo 1584e705c121SKalle Valo rx_missed_bcon = le32_to_cpu(missed_beacons->consec_missed_beacons); 1585e705c121SKalle Valo rx_missed_bcon_since_rx = 1586e705c121SKalle Valo le32_to_cpu(missed_beacons->consec_missed_beacons_since_last_rx); 1587e705c121SKalle Valo /* 1588e705c121SKalle Valo * TODO: the threshold should be adjusted based on latency conditions, 1589e705c121SKalle Valo * and/or in case of a CS flow on one of the other AP vifs. 1590e705c121SKalle Valo */ 1591e705c121SKalle Valo if (le32_to_cpu(missed_beacons->consec_missed_beacons_since_last_rx) > 1592e705c121SKalle Valo IWL_MVM_MISSED_BEACONS_THRESHOLD) 1593e705c121SKalle Valo ieee80211_beacon_loss(vif); 1594e705c121SKalle Valo 1595e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, 1596e705c121SKalle Valo FW_DBG_TRIGGER_MISSED_BEACONS)) 1597e705c121SKalle Valo return; 1598e705c121SKalle Valo 1599e705c121SKalle Valo trigger = iwl_fw_dbg_get_trigger(mvm->fw, 1600e705c121SKalle Valo FW_DBG_TRIGGER_MISSED_BEACONS); 1601e705c121SKalle Valo bcon_trig = (void *)trigger->data; 1602e705c121SKalle Valo stop_trig_missed_bcon = le32_to_cpu(bcon_trig->stop_consec_missed_bcon); 1603e705c121SKalle Valo stop_trig_missed_bcon_since_rx = 1604e705c121SKalle Valo le32_to_cpu(bcon_trig->stop_consec_missed_bcon_since_rx); 1605e705c121SKalle Valo 1606e705c121SKalle Valo /* TODO: implement start trigger */ 1607e705c121SKalle Valo 16087174beb6SJohannes Berg if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt, 16097174beb6SJohannes Berg ieee80211_vif_to_wdev(vif), 16107174beb6SJohannes Berg trigger)) 1611e705c121SKalle Valo return; 1612e705c121SKalle Valo 1613e705c121SKalle Valo if (rx_missed_bcon_since_rx >= stop_trig_missed_bcon_since_rx || 1614e705c121SKalle Valo rx_missed_bcon >= stop_trig_missed_bcon) 16157174beb6SJohannes Berg iwl_fw_dbg_collect_trig(&mvm->fwrt, trigger, NULL); 1616e705c121SKalle Valo } 1617e705c121SKalle Valo 1618e705c121SKalle Valo void iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm *mvm, 1619e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb) 1620e705c121SKalle Valo { 1621e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb); 1622e705c121SKalle Valo struct iwl_missed_beacons_notif *mb = (void *)pkt->data; 1623e705c121SKalle Valo 1624e705c121SKalle Valo IWL_DEBUG_INFO(mvm, 1625e705c121SKalle Valo "missed bcn mac_id=%u, consecutive=%u (%u, %u, %u)\n", 1626e705c121SKalle Valo le32_to_cpu(mb->mac_id), 1627e705c121SKalle Valo le32_to_cpu(mb->consec_missed_beacons), 1628e705c121SKalle Valo le32_to_cpu(mb->consec_missed_beacons_since_last_rx), 1629e705c121SKalle Valo le32_to_cpu(mb->num_recvd_beacons), 1630e705c121SKalle Valo le32_to_cpu(mb->num_expected_beacons)); 1631e705c121SKalle Valo 1632e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic(mvm->hw, 1633e705c121SKalle Valo IEEE80211_IFACE_ITER_NORMAL, 1634e705c121SKalle Valo iwl_mvm_beacon_loss_iterator, 1635e705c121SKalle Valo mb); 1636e705c121SKalle Valo } 16370db056d3SSara Sharon 16380db056d3SSara Sharon void iwl_mvm_rx_stored_beacon_notif(struct iwl_mvm *mvm, 16390db056d3SSara Sharon struct iwl_rx_cmd_buffer *rxb) 16400db056d3SSara Sharon { 16410db056d3SSara Sharon struct iwl_rx_packet *pkt = rxb_addr(rxb); 16420db056d3SSara Sharon struct iwl_stored_beacon_notif *sb = (void *)pkt->data; 16430db056d3SSara Sharon struct ieee80211_rx_status rx_status; 16440db056d3SSara Sharon struct sk_buff *skb; 16450db056d3SSara Sharon u32 size = le32_to_cpu(sb->byte_count); 16460db056d3SSara Sharon 16470db056d3SSara Sharon if (size == 0) 16480db056d3SSara Sharon return; 16490db056d3SSara Sharon 16500db056d3SSara Sharon skb = alloc_skb(size, GFP_ATOMIC); 16510db056d3SSara Sharon if (!skb) { 16520db056d3SSara Sharon IWL_ERR(mvm, "alloc_skb failed\n"); 16530db056d3SSara Sharon return; 16540db056d3SSara Sharon } 16550db056d3SSara Sharon 16560db056d3SSara Sharon /* update rx_status according to the notification's metadata */ 16570db056d3SSara Sharon memset(&rx_status, 0, sizeof(rx_status)); 16580db056d3SSara Sharon rx_status.mactime = le64_to_cpu(sb->tsf); 165977fe7395SSara Sharon /* TSF as indicated by the firmware is at INA time */ 166077fe7395SSara Sharon rx_status.flag |= RX_FLAG_MACTIME_PLCP_START; 16610db056d3SSara Sharon rx_status.device_timestamp = le32_to_cpu(sb->system_time); 16620db056d3SSara Sharon rx_status.band = 166334118c25SSara Sharon (sb->band & cpu_to_le16(RX_RES_PHY_FLAGS_BAND_24)) ? 166457fbcce3SJohannes Berg NL80211_BAND_2GHZ : NL80211_BAND_5GHZ; 16650db056d3SSara Sharon rx_status.freq = 16660db056d3SSara Sharon ieee80211_channel_to_frequency(le16_to_cpu(sb->channel), 16670db056d3SSara Sharon rx_status.band); 16680db056d3SSara Sharon 16690db056d3SSara Sharon /* copy the data */ 167059ae1d12SJohannes Berg skb_put_data(skb, sb->data, size); 16710db056d3SSara Sharon memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); 16720db056d3SSara Sharon 16730db056d3SSara Sharon /* pass it as regular rx to mac80211 */ 1674d63b548fSJohannes Berg ieee80211_rx_napi(mvm->hw, NULL, skb, NULL); 16750db056d3SSara Sharon } 1676d3a108a4SAndrei Otcheretianski 1677d3a108a4SAndrei Otcheretianski void iwl_mvm_channel_switch_noa_notif(struct iwl_mvm *mvm, 1678d3a108a4SAndrei Otcheretianski struct iwl_rx_cmd_buffer *rxb) 1679d3a108a4SAndrei Otcheretianski { 1680d3a108a4SAndrei Otcheretianski struct iwl_rx_packet *pkt = rxb_addr(rxb); 1681d3a108a4SAndrei Otcheretianski struct iwl_channel_switch_noa_notif *notif = (void *)pkt->data; 1682d3a108a4SAndrei Otcheretianski struct ieee80211_vif *csa_vif; 1683d3a108a4SAndrei Otcheretianski struct iwl_mvm_vif *mvmvif; 1684d3a108a4SAndrei Otcheretianski int len = iwl_rx_packet_payload_len(pkt); 1685d3a108a4SAndrei Otcheretianski u32 id_n_color; 1686d3a108a4SAndrei Otcheretianski 1687d3a108a4SAndrei Otcheretianski if (WARN_ON_ONCE(len < sizeof(*notif))) 1688d3a108a4SAndrei Otcheretianski return; 1689d3a108a4SAndrei Otcheretianski 1690d3a108a4SAndrei Otcheretianski rcu_read_lock(); 1691d3a108a4SAndrei Otcheretianski 1692d3a108a4SAndrei Otcheretianski csa_vif = rcu_dereference(mvm->csa_vif); 1693d3a108a4SAndrei Otcheretianski if (WARN_ON(!csa_vif || !csa_vif->csa_active)) 1694d3a108a4SAndrei Otcheretianski goto out_unlock; 1695d3a108a4SAndrei Otcheretianski 1696d3a108a4SAndrei Otcheretianski id_n_color = le32_to_cpu(notif->id_and_color); 1697d3a108a4SAndrei Otcheretianski 1698d3a108a4SAndrei Otcheretianski mvmvif = iwl_mvm_vif_from_mac80211(csa_vif); 1699d3a108a4SAndrei Otcheretianski if (WARN(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color) != id_n_color, 1700d3a108a4SAndrei Otcheretianski "channel switch noa notification on unexpected vif (csa_vif=%d, notif=%d)", 1701d3a108a4SAndrei Otcheretianski FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color), id_n_color)) 1702d3a108a4SAndrei Otcheretianski goto out_unlock; 1703d3a108a4SAndrei Otcheretianski 1704d3a108a4SAndrei Otcheretianski IWL_DEBUG_INFO(mvm, "Channel Switch Started Notification\n"); 1705d3a108a4SAndrei Otcheretianski 170686bbb1e1SJohannes Berg schedule_delayed_work(&mvm->cs_tx_unblock_dwork, 1707d3a108a4SAndrei Otcheretianski msecs_to_jiffies(IWL_MVM_CS_UNBLOCK_TX_TIMEOUT * 1708d3a108a4SAndrei Otcheretianski csa_vif->bss_conf.beacon_int)); 1709d3a108a4SAndrei Otcheretianski 1710d3a108a4SAndrei Otcheretianski ieee80211_csa_finish(csa_vif); 1711d3a108a4SAndrei Otcheretianski 1712d3a108a4SAndrei Otcheretianski rcu_read_unlock(); 1713d3a108a4SAndrei Otcheretianski 1714d3a108a4SAndrei Otcheretianski RCU_INIT_POINTER(mvm->csa_vif, NULL); 1715d3a108a4SAndrei Otcheretianski 1716d3a108a4SAndrei Otcheretianski return; 1717d3a108a4SAndrei Otcheretianski 1718d3a108a4SAndrei Otcheretianski out_unlock: 1719d3a108a4SAndrei Otcheretianski rcu_read_unlock(); 1720d3a108a4SAndrei Otcheretianski } 1721