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. 926d6c16bSSara Sharon * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 1026d6c16bSSara Sharon * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 1163dd5d02SSara Sharon * Copyright(c) 2018 Intel Corporation 12e705c121SKalle Valo * 13e705c121SKalle Valo * This program is free software; you can redistribute it and/or modify 14e705c121SKalle Valo * it under the terms of version 2 of the GNU General Public License as 15e705c121SKalle Valo * published by the Free Software Foundation. 16e705c121SKalle Valo * 17e705c121SKalle Valo * This program is distributed in the hope that it will be useful, but 18e705c121SKalle Valo * WITHOUT ANY WARRANTY; without even the implied warranty of 19e705c121SKalle Valo * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 20e705c121SKalle Valo * General Public License for more details. 21e705c121SKalle Valo * 22e705c121SKalle Valo * The full GNU General Public License is included in this distribution 23e705c121SKalle Valo * in the file called COPYING. 24e705c121SKalle Valo * 25e705c121SKalle Valo * Contact Information: 26cb2f8277SEmmanuel Grumbach * Intel Linux Wireless <linuxwifi@intel.com> 27e705c121SKalle Valo * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 28e705c121SKalle Valo * 29e705c121SKalle Valo * BSD LICENSE 30e705c121SKalle Valo * 31e705c121SKalle Valo * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 3226d6c16bSSara Sharon * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 3326d6c16bSSara Sharon * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 34514c3069SLuca Coelho * Copyright(c) 2018 Intel Corporation 35e705c121SKalle Valo * All rights reserved. 36e705c121SKalle Valo * 37e705c121SKalle Valo * Redistribution and use in source and binary forms, with or without 38e705c121SKalle Valo * modification, are permitted provided that the following conditions 39e705c121SKalle Valo * are met: 40e705c121SKalle Valo * 41e705c121SKalle Valo * * Redistributions of source code must retain the above copyright 42e705c121SKalle Valo * notice, this list of conditions and the following disclaimer. 43e705c121SKalle Valo * * Redistributions in binary form must reproduce the above copyright 44e705c121SKalle Valo * notice, this list of conditions and the following disclaimer in 45e705c121SKalle Valo * the documentation and/or other materials provided with the 46e705c121SKalle Valo * distribution. 47e705c121SKalle Valo * * Neither the name Intel Corporation nor the names of its 48e705c121SKalle Valo * contributors may be used to endorse or promote products derived 49e705c121SKalle Valo * from this software without specific prior written permission. 50e705c121SKalle Valo * 51e705c121SKalle Valo * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 52e705c121SKalle Valo * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 53e705c121SKalle Valo * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 54e705c121SKalle Valo * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 55e705c121SKalle Valo * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 56e705c121SKalle Valo * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 57e705c121SKalle Valo * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 58e705c121SKalle Valo * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 59e705c121SKalle Valo * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 60e705c121SKalle Valo * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 61e705c121SKalle Valo * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 62e705c121SKalle Valo * 63e705c121SKalle Valo *****************************************************************************/ 64e705c121SKalle Valo #include <linux/kernel.h> 65e705c121SKalle Valo #include <linux/slab.h> 66e705c121SKalle Valo #include <linux/skbuff.h> 67e705c121SKalle Valo #include <linux/netdevice.h> 68e705c121SKalle Valo #include <linux/etherdevice.h> 69e705c121SKalle Valo #include <linux/ip.h> 70e705c121SKalle Valo #include <linux/if_arp.h> 712f89a5d7SGolan Ben-Ami #include <linux/time.h> 72e705c121SKalle Valo #include <net/mac80211.h> 73e705c121SKalle Valo #include <net/ieee80211_radiotap.h> 74e705c121SKalle Valo #include <net/tcp.h> 75e705c121SKalle Valo 76e705c121SKalle Valo #include "iwl-op-mode.h" 77e705c121SKalle Valo #include "iwl-io.h" 78e705c121SKalle Valo #include "mvm.h" 79e705c121SKalle Valo #include "sta.h" 80e705c121SKalle Valo #include "time-event.h" 81e705c121SKalle Valo #include "iwl-eeprom-parse.h" 82e705c121SKalle Valo #include "iwl-phy-db.h" 83e705c121SKalle Valo #include "testmode.h" 84d962f9b1SJohannes Berg #include "fw/error-dump.h" 85e705c121SKalle Valo #include "iwl-prph.h" 86e705c121SKalle Valo #include "iwl-nvm-parse.h" 87e705c121SKalle Valo 88e705c121SKalle Valo static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 89e705c121SKalle Valo { 90e705c121SKalle Valo .max = 1, 91e705c121SKalle Valo .types = BIT(NL80211_IFTYPE_STATION), 92e705c121SKalle Valo }, 93e705c121SKalle Valo { 94e705c121SKalle Valo .max = 1, 95e705c121SKalle Valo .types = BIT(NL80211_IFTYPE_AP) | 96e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_CLIENT) | 97e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_GO), 98e705c121SKalle Valo }, 99e705c121SKalle Valo { 100e705c121SKalle Valo .max = 1, 101e705c121SKalle Valo .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 102e705c121SKalle Valo }, 103e705c121SKalle Valo }; 104e705c121SKalle Valo 105e705c121SKalle Valo static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 106e705c121SKalle Valo { 107e705c121SKalle Valo .num_different_channels = 2, 108e705c121SKalle Valo .max_interfaces = 3, 109e705c121SKalle Valo .limits = iwl_mvm_limits, 110e705c121SKalle Valo .n_limits = ARRAY_SIZE(iwl_mvm_limits), 111e705c121SKalle Valo }, 112e705c121SKalle Valo }; 113e705c121SKalle Valo 114e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 115e705c121SKalle Valo /* 116e705c121SKalle Valo * Use the reserved field to indicate magic values. 117e705c121SKalle Valo * these values will only be used internally by the driver, 118e705c121SKalle Valo * and won't make it to the fw (reserved will be 0). 119e705c121SKalle Valo * BC_FILTER_MAGIC_IP - configure the val of this attribute to 120e705c121SKalle Valo * be the vif's ip address. in case there is not a single 121e705c121SKalle Valo * ip address (0, or more than 1), this attribute will 122e705c121SKalle Valo * be skipped. 123e705c121SKalle Valo * BC_FILTER_MAGIC_MAC - set the val of this attribute to 124e705c121SKalle Valo * the LSB bytes of the vif's mac address 125e705c121SKalle Valo */ 126e705c121SKalle Valo enum { 127e705c121SKalle Valo BC_FILTER_MAGIC_NONE = 0, 128e705c121SKalle Valo BC_FILTER_MAGIC_IP, 129e705c121SKalle Valo BC_FILTER_MAGIC_MAC, 130e705c121SKalle Valo }; 131e705c121SKalle Valo 132e705c121SKalle Valo static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { 133e705c121SKalle Valo { 134e705c121SKalle Valo /* arp */ 135e705c121SKalle Valo .discard = 0, 136e705c121SKalle Valo .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, 137e705c121SKalle Valo .attrs = { 138e705c121SKalle Valo { 139e705c121SKalle Valo /* frame type - arp, hw type - ethernet */ 140e705c121SKalle Valo .offset_type = 141e705c121SKalle Valo BCAST_FILTER_OFFSET_PAYLOAD_START, 142e705c121SKalle Valo .offset = sizeof(rfc1042_header), 143e705c121SKalle Valo .val = cpu_to_be32(0x08060001), 144e705c121SKalle Valo .mask = cpu_to_be32(0xffffffff), 145e705c121SKalle Valo }, 146e705c121SKalle Valo { 147e705c121SKalle Valo /* arp dest ip */ 148e705c121SKalle Valo .offset_type = 149e705c121SKalle Valo BCAST_FILTER_OFFSET_PAYLOAD_START, 150e705c121SKalle Valo .offset = sizeof(rfc1042_header) + 2 + 151e705c121SKalle Valo sizeof(struct arphdr) + 152e705c121SKalle Valo ETH_ALEN + sizeof(__be32) + 153e705c121SKalle Valo ETH_ALEN, 154e705c121SKalle Valo .mask = cpu_to_be32(0xffffffff), 155e705c121SKalle Valo /* mark it as special field */ 156e705c121SKalle Valo .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), 157e705c121SKalle Valo }, 158e705c121SKalle Valo }, 159e705c121SKalle Valo }, 160e705c121SKalle Valo { 161e705c121SKalle Valo /* dhcp offer bcast */ 162e705c121SKalle Valo .discard = 0, 163e705c121SKalle Valo .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, 164e705c121SKalle Valo .attrs = { 165e705c121SKalle Valo { 166e705c121SKalle Valo /* udp dest port - 68 (bootp client)*/ 167e705c121SKalle Valo .offset_type = BCAST_FILTER_OFFSET_IP_END, 168e705c121SKalle Valo .offset = offsetof(struct udphdr, dest), 169e705c121SKalle Valo .val = cpu_to_be32(0x00440000), 170e705c121SKalle Valo .mask = cpu_to_be32(0xffff0000), 171e705c121SKalle Valo }, 172e705c121SKalle Valo { 173e705c121SKalle Valo /* dhcp - lsb bytes of client hw address */ 174e705c121SKalle Valo .offset_type = BCAST_FILTER_OFFSET_IP_END, 175e705c121SKalle Valo .offset = 38, 176e705c121SKalle Valo .mask = cpu_to_be32(0xffffffff), 177e705c121SKalle Valo /* mark it as special field */ 178e705c121SKalle Valo .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), 179e705c121SKalle Valo }, 180e705c121SKalle Valo }, 181e705c121SKalle Valo }, 182e705c121SKalle Valo /* last filter must be empty */ 183e705c121SKalle Valo {}, 184e705c121SKalle Valo }; 185e705c121SKalle Valo #endif 186e705c121SKalle Valo 187e705c121SKalle Valo void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) 188e705c121SKalle Valo { 189e705c121SKalle Valo if (!iwl_mvm_is_d0i3_supported(mvm)) 190e705c121SKalle Valo return; 191e705c121SKalle Valo 192e705c121SKalle Valo IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type); 193e705c121SKalle Valo spin_lock_bh(&mvm->refs_lock); 194e705c121SKalle Valo mvm->refs[ref_type]++; 195e705c121SKalle Valo spin_unlock_bh(&mvm->refs_lock); 196e705c121SKalle Valo iwl_trans_ref(mvm->trans); 197e705c121SKalle Valo } 198e705c121SKalle Valo 199e705c121SKalle Valo void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) 200e705c121SKalle Valo { 201e705c121SKalle Valo if (!iwl_mvm_is_d0i3_supported(mvm)) 202e705c121SKalle Valo return; 203e705c121SKalle Valo 204e705c121SKalle Valo IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type); 205e705c121SKalle Valo spin_lock_bh(&mvm->refs_lock); 20616c45822SSara Sharon if (WARN_ON(!mvm->refs[ref_type])) { 20716c45822SSara Sharon spin_unlock_bh(&mvm->refs_lock); 20816c45822SSara Sharon return; 20916c45822SSara Sharon } 21016c45822SSara Sharon mvm->refs[ref_type]--; 211e705c121SKalle Valo spin_unlock_bh(&mvm->refs_lock); 212e705c121SKalle Valo iwl_trans_unref(mvm->trans); 213e705c121SKalle Valo } 214e705c121SKalle Valo 215e705c121SKalle Valo static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm, 216e705c121SKalle Valo enum iwl_mvm_ref_type except_ref) 217e705c121SKalle Valo { 218e705c121SKalle Valo int i, j; 219e705c121SKalle Valo 220e705c121SKalle Valo if (!iwl_mvm_is_d0i3_supported(mvm)) 221e705c121SKalle Valo return; 222e705c121SKalle Valo 223e705c121SKalle Valo spin_lock_bh(&mvm->refs_lock); 224e705c121SKalle Valo for (i = 0; i < IWL_MVM_REF_COUNT; i++) { 225e705c121SKalle Valo if (except_ref == i || !mvm->refs[i]) 226e705c121SKalle Valo continue; 227e705c121SKalle Valo 228e705c121SKalle Valo IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n", 229e705c121SKalle Valo i, mvm->refs[i]); 230e705c121SKalle Valo for (j = 0; j < mvm->refs[i]; j++) 231e705c121SKalle Valo iwl_trans_unref(mvm->trans); 232e705c121SKalle Valo mvm->refs[i] = 0; 233e705c121SKalle Valo } 234e705c121SKalle Valo spin_unlock_bh(&mvm->refs_lock); 235e705c121SKalle Valo } 236e705c121SKalle Valo 237e705c121SKalle Valo bool iwl_mvm_ref_taken(struct iwl_mvm *mvm) 238e705c121SKalle Valo { 239e705c121SKalle Valo int i; 240e705c121SKalle Valo bool taken = false; 241e705c121SKalle Valo 242e705c121SKalle Valo if (!iwl_mvm_is_d0i3_supported(mvm)) 243e705c121SKalle Valo return true; 244e705c121SKalle Valo 245e705c121SKalle Valo spin_lock_bh(&mvm->refs_lock); 246e705c121SKalle Valo for (i = 0; i < IWL_MVM_REF_COUNT; i++) { 247e705c121SKalle Valo if (mvm->refs[i]) { 248e705c121SKalle Valo taken = true; 249e705c121SKalle Valo break; 250e705c121SKalle Valo } 251e705c121SKalle Valo } 252e705c121SKalle Valo spin_unlock_bh(&mvm->refs_lock); 253e705c121SKalle Valo 254e705c121SKalle Valo return taken; 255e705c121SKalle Valo } 256e705c121SKalle Valo 257e705c121SKalle Valo int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) 258e705c121SKalle Valo { 259e705c121SKalle Valo iwl_mvm_ref(mvm, ref_type); 260e705c121SKalle Valo 261e705c121SKalle Valo if (!wait_event_timeout(mvm->d0i3_exit_waitq, 262e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status), 263e705c121SKalle Valo HZ)) { 264e705c121SKalle Valo WARN_ON_ONCE(1); 265e705c121SKalle Valo iwl_mvm_unref(mvm, ref_type); 266e705c121SKalle Valo return -EIO; 267e705c121SKalle Valo } 268e705c121SKalle Valo 269e705c121SKalle Valo return 0; 270e705c121SKalle Valo } 271e705c121SKalle Valo 272e705c121SKalle Valo static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 273e705c121SKalle Valo { 274e705c121SKalle Valo int i; 275e705c121SKalle Valo 276e705c121SKalle Valo memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 277e705c121SKalle Valo for (i = 0; i < NUM_PHY_CTX; i++) { 278e705c121SKalle Valo mvm->phy_ctxts[i].id = i; 279e705c121SKalle Valo mvm->phy_ctxts[i].ref = 0; 280e705c121SKalle Valo } 281e705c121SKalle Valo } 282e705c121SKalle Valo 283e705c121SKalle Valo struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 284e705c121SKalle Valo const char *alpha2, 285e705c121SKalle Valo enum iwl_mcc_source src_id, 286e705c121SKalle Valo bool *changed) 287e705c121SKalle Valo { 288e705c121SKalle Valo struct ieee80211_regdomain *regd = NULL; 289e705c121SKalle Valo struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 290e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 291e705c121SKalle Valo struct iwl_mcc_update_resp *resp; 292e705c121SKalle Valo 293e705c121SKalle Valo IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 294e705c121SKalle Valo 295e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 296e705c121SKalle Valo 297e705c121SKalle Valo resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 298e705c121SKalle Valo if (IS_ERR_OR_NULL(resp)) { 299e705c121SKalle Valo IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 300e705c121SKalle Valo PTR_ERR_OR_ZERO(resp)); 301e705c121SKalle Valo goto out; 302e705c121SKalle Valo } 303e705c121SKalle Valo 30482715ac7SEmmanuel Grumbach if (changed) { 30582715ac7SEmmanuel Grumbach u32 status = le32_to_cpu(resp->status); 30682715ac7SEmmanuel Grumbach 30782715ac7SEmmanuel Grumbach *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 30882715ac7SEmmanuel Grumbach status == MCC_RESP_ILLEGAL); 30982715ac7SEmmanuel Grumbach } 310e705c121SKalle Valo 311e705c121SKalle Valo regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 312e705c121SKalle Valo __le32_to_cpu(resp->n_channels), 313e705c121SKalle Valo resp->channels, 31477e30e10SHaim Dreyfuss __le16_to_cpu(resp->mcc), 31577e30e10SHaim Dreyfuss __le16_to_cpu(resp->geo_info)); 316e705c121SKalle Valo /* Store the return source id */ 317e705c121SKalle Valo src_id = resp->source_id; 318e705c121SKalle Valo kfree(resp); 319e705c121SKalle Valo if (IS_ERR_OR_NULL(regd)) { 320e705c121SKalle Valo IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 321e705c121SKalle Valo PTR_ERR_OR_ZERO(regd)); 322e705c121SKalle Valo goto out; 323e705c121SKalle Valo } 324e705c121SKalle Valo 325e705c121SKalle Valo IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 326e705c121SKalle Valo regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 327e705c121SKalle Valo mvm->lar_regdom_set = true; 328e705c121SKalle Valo mvm->mcc_src = src_id; 329e705c121SKalle Valo 330e705c121SKalle Valo out: 331e705c121SKalle Valo return regd; 332e705c121SKalle Valo } 333e705c121SKalle Valo 334e705c121SKalle Valo void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 335e705c121SKalle Valo { 336e705c121SKalle Valo bool changed; 337e705c121SKalle Valo struct ieee80211_regdomain *regd; 338e705c121SKalle Valo 339e705c121SKalle Valo if (!iwl_mvm_is_lar_supported(mvm)) 340e705c121SKalle Valo return; 341e705c121SKalle Valo 342e705c121SKalle Valo regd = iwl_mvm_get_current_regdomain(mvm, &changed); 343e705c121SKalle Valo if (!IS_ERR_OR_NULL(regd)) { 344e705c121SKalle Valo /* only update the regulatory core if changed */ 345e705c121SKalle Valo if (changed) 346e705c121SKalle Valo regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 347e705c121SKalle Valo 348e705c121SKalle Valo kfree(regd); 349e705c121SKalle Valo } 350e705c121SKalle Valo } 351e705c121SKalle Valo 352e705c121SKalle Valo struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 353e705c121SKalle Valo bool *changed) 354e705c121SKalle Valo { 355e705c121SKalle Valo return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 356e705c121SKalle Valo iwl_mvm_is_wifi_mcc_supported(mvm) ? 357e705c121SKalle Valo MCC_SOURCE_GET_CURRENT : 358e705c121SKalle Valo MCC_SOURCE_OLD_FW, changed); 359e705c121SKalle Valo } 360e705c121SKalle Valo 361e705c121SKalle Valo int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) 362e705c121SKalle Valo { 363e705c121SKalle Valo enum iwl_mcc_source used_src; 364e705c121SKalle Valo struct ieee80211_regdomain *regd; 365e705c121SKalle Valo int ret; 366e705c121SKalle Valo bool changed; 367e705c121SKalle Valo const struct ieee80211_regdomain *r = 368e705c121SKalle Valo rtnl_dereference(mvm->hw->wiphy->regd); 369e705c121SKalle Valo 370e705c121SKalle Valo if (!r) 371e705c121SKalle Valo return -ENOENT; 372e705c121SKalle Valo 373e705c121SKalle Valo /* save the last source in case we overwrite it below */ 374e705c121SKalle Valo used_src = mvm->mcc_src; 375e705c121SKalle Valo if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 376e705c121SKalle Valo /* Notify the firmware we support wifi location updates */ 377e705c121SKalle Valo regd = iwl_mvm_get_current_regdomain(mvm, NULL); 378e705c121SKalle Valo if (!IS_ERR_OR_NULL(regd)) 379e705c121SKalle Valo kfree(regd); 380e705c121SKalle Valo } 381e705c121SKalle Valo 382e705c121SKalle Valo /* Now set our last stored MCC and source */ 383e705c121SKalle Valo regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 384e705c121SKalle Valo &changed); 385e705c121SKalle Valo if (IS_ERR_OR_NULL(regd)) 386e705c121SKalle Valo return -EIO; 387e705c121SKalle Valo 388e705c121SKalle Valo /* update cfg80211 if the regdomain was changed */ 389e705c121SKalle Valo if (changed) 390e705c121SKalle Valo ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd); 391e705c121SKalle Valo else 392e705c121SKalle Valo ret = 0; 393e705c121SKalle Valo 394e705c121SKalle Valo kfree(regd); 395e705c121SKalle Valo return ret; 396e705c121SKalle Valo } 397e705c121SKalle Valo 3987360f99eSEmmanuel Grumbach const static u8 he_if_types_ext_capa_sta[] = { 3997360f99eSEmmanuel Grumbach [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 4007360f99eSEmmanuel Grumbach [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF, 4017360f99eSEmmanuel Grumbach [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 4027360f99eSEmmanuel Grumbach }; 4037360f99eSEmmanuel Grumbach 4047360f99eSEmmanuel Grumbach const static struct wiphy_iftype_ext_capab he_iftypes_ext_capa[] = { 4057360f99eSEmmanuel Grumbach { 4067360f99eSEmmanuel Grumbach .iftype = NL80211_IFTYPE_STATION, 4077360f99eSEmmanuel Grumbach .extended_capabilities = he_if_types_ext_capa_sta, 4087360f99eSEmmanuel Grumbach .extended_capabilities_mask = he_if_types_ext_capa_sta, 4097360f99eSEmmanuel Grumbach .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 4107360f99eSEmmanuel Grumbach }, 4117360f99eSEmmanuel Grumbach }; 4127360f99eSEmmanuel Grumbach 413e705c121SKalle Valo int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 414e705c121SKalle Valo { 415e705c121SKalle Valo struct ieee80211_hw *hw = mvm->hw; 416e705c121SKalle Valo int num_mac, ret, i; 417e705c121SKalle Valo static const u32 mvm_ciphers[] = { 418e705c121SKalle Valo WLAN_CIPHER_SUITE_WEP40, 419e705c121SKalle Valo WLAN_CIPHER_SUITE_WEP104, 420e705c121SKalle Valo WLAN_CIPHER_SUITE_TKIP, 421e705c121SKalle Valo WLAN_CIPHER_SUITE_CCMP, 422e705c121SKalle Valo }; 423e705c121SKalle Valo 424e705c121SKalle Valo /* Tell mac80211 our characteristics */ 425e705c121SKalle Valo ieee80211_hw_set(hw, SIGNAL_DBM); 426e705c121SKalle Valo ieee80211_hw_set(hw, SPECTRUM_MGMT); 427e705c121SKalle Valo ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 428e705c121SKalle Valo ieee80211_hw_set(hw, WANT_MONITOR_VIF); 429e705c121SKalle Valo ieee80211_hw_set(hw, SUPPORTS_PS); 430e705c121SKalle Valo ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 431e705c121SKalle Valo ieee80211_hw_set(hw, AMPDU_AGGREGATION); 432e705c121SKalle Valo ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 433e705c121SKalle Valo ieee80211_hw_set(hw, CONNECTION_MONITOR); 434e705c121SKalle Valo ieee80211_hw_set(hw, CHANCTX_STA_CSA); 435e705c121SKalle Valo ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 436e705c121SKalle Valo ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 437909ddf0bSJohannes Berg ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 43830433d3bSJohannes Berg ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 439d270e7b8SIlan Peer ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 440520229e4SShaul Triebitz ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 441cfbc6c4cSSara Sharon ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 442cfbc6c4cSSara Sharon ieee80211_hw_set(hw, STA_MMPDU_TXQ); 443438af969SSara Sharon ieee80211_hw_set(hw, TX_AMSDU); 444438af969SSara Sharon ieee80211_hw_set(hw, TX_FRAG_LIST); 445ecaf71deSGregory Greenman 4464243edb4SEmmanuel Grumbach if (iwl_mvm_has_tlc_offload(mvm)) { 447ecaf71deSGregory Greenman ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 448ecaf71deSGregory Greenman ieee80211_hw_set(hw, HAS_RATE_CONTROL); 449ecaf71deSGregory Greenman } 450ecaf71deSGregory Greenman 451b915c101SSara Sharon if (iwl_mvm_has_new_rx_api(mvm)) 452b915c101SSara Sharon ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 453960f864bSJohannes Berg 454960f864bSJohannes Berg if (fw_has_capa(&mvm->fw->ucode_capa, 455960f864bSJohannes Berg IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 45665e25482SJohannes Berg ieee80211_hw_set(hw, AP_LINK_PS); 457960f864bSJohannes Berg } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 458960f864bSJohannes Berg /* 459960f864bSJohannes Berg * we absolutely need this for the new TX API since that comes 460960f864bSJohannes Berg * with many more queues than the current code can deal with 461960f864bSJohannes Berg * for station powersave 462960f864bSJohannes Berg */ 463960f864bSJohannes Berg return -EINVAL; 464960f864bSJohannes Berg } 465e705c121SKalle Valo 46680938abcSJohannes Berg if (mvm->trans->num_rx_queues > 1) 46780938abcSJohannes Berg ieee80211_hw_set(hw, USES_RSS); 46880938abcSJohannes Berg 4692d7cf549SJohannes Berg if (mvm->trans->max_skb_frags) 4702d7cf549SJohannes Berg hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 4712d7cf549SJohannes Berg 472cf961e16SLiad Kaufman hw->queues = IEEE80211_MAX_QUEUES; 473e705c121SKalle Valo hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 474e705c121SKalle Valo hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 475e705c121SKalle Valo IEEE80211_RADIOTAP_MCS_HAVE_STBC; 476e705c121SKalle Valo hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 477e705c121SKalle Valo IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 478371a17edSJohannes Berg 479371a17edSJohannes Berg hw->radiotap_timestamp.units_pos = 480371a17edSJohannes Berg IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 481371a17edSJohannes Berg IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 482371a17edSJohannes Berg /* this is the case for CCK frames, it's better (only 8) for OFDM */ 483371a17edSJohannes Berg hw->radiotap_timestamp.accuracy = 22; 484371a17edSJohannes Berg 4854243edb4SEmmanuel Grumbach if (!iwl_mvm_has_tlc_offload(mvm)) 4869f66a397SGregory Greenman hw->rate_control_algorithm = RS_NAME; 4879f66a397SGregory Greenman 488e705c121SKalle Valo hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 489e705c121SKalle Valo hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 490438af969SSara Sharon hw->max_tx_fragments = mvm->trans->max_skb_frags; 491e705c121SKalle Valo 4928e160ab8SAyala Beker BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 493e705c121SKalle Valo memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 494e705c121SKalle Valo hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 495e705c121SKalle Valo hw->wiphy->cipher_suites = mvm->ciphers; 496e705c121SKalle Valo 4972a53d166SAyala Beker if (iwl_mvm_has_new_rx_api(mvm)) { 4982a53d166SAyala Beker mvm->ciphers[hw->wiphy->n_cipher_suites] = 4992a53d166SAyala Beker WLAN_CIPHER_SUITE_GCMP; 5002a53d166SAyala Beker hw->wiphy->n_cipher_suites++; 5012a53d166SAyala Beker mvm->ciphers[hw->wiphy->n_cipher_suites] = 5022a53d166SAyala Beker WLAN_CIPHER_SUITE_GCMP_256; 5032a53d166SAyala Beker hw->wiphy->n_cipher_suites++; 5042a53d166SAyala Beker } 5052a53d166SAyala Beker 5064b87e5afSLuca Coelho /* Enable 11w if software crypto is not enabled (as the 5074b87e5afSLuca Coelho * firmware will interpret some mgmt packets, so enabling it 5084b87e5afSLuca Coelho * with software crypto isn't safe). 509e705c121SKalle Valo */ 5103b37f4c9SJohannes Berg if (!iwlwifi_mod_params.swcrypto) { 511e705c121SKalle Valo ieee80211_hw_set(hw, MFP_CAPABLE); 512e705c121SKalle Valo mvm->ciphers[hw->wiphy->n_cipher_suites] = 513e705c121SKalle Valo WLAN_CIPHER_SUITE_AES_CMAC; 514e705c121SKalle Valo hw->wiphy->n_cipher_suites++; 5158e160ab8SAyala Beker if (iwl_mvm_has_new_rx_api(mvm)) { 5168e160ab8SAyala Beker mvm->ciphers[hw->wiphy->n_cipher_suites] = 5178e160ab8SAyala Beker WLAN_CIPHER_SUITE_BIP_GMAC_128; 5188e160ab8SAyala Beker hw->wiphy->n_cipher_suites++; 5198e160ab8SAyala Beker mvm->ciphers[hw->wiphy->n_cipher_suites] = 5208e160ab8SAyala Beker WLAN_CIPHER_SUITE_BIP_GMAC_256; 5218e160ab8SAyala Beker hw->wiphy->n_cipher_suites++; 5228e160ab8SAyala Beker } 523e705c121SKalle Valo } 524e705c121SKalle Valo 525e705c121SKalle Valo /* currently FW API supports only one optional cipher scheme */ 526e705c121SKalle Valo if (mvm->fw->cs[0].cipher) { 52724ddddf3SJohannes Berg const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0]; 52824ddddf3SJohannes Berg struct ieee80211_cipher_scheme *cs = &mvm->cs[0]; 52924ddddf3SJohannes Berg 530e705c121SKalle Valo mvm->hw->n_cipher_schemes = 1; 53124ddddf3SJohannes Berg 53224ddddf3SJohannes Berg cs->cipher = le32_to_cpu(fwcs->cipher); 53324ddddf3SJohannes Berg cs->iftype = BIT(NL80211_IFTYPE_STATION); 53424ddddf3SJohannes Berg cs->hdr_len = fwcs->hdr_len; 53524ddddf3SJohannes Berg cs->pn_len = fwcs->pn_len; 53624ddddf3SJohannes Berg cs->pn_off = fwcs->pn_off; 53724ddddf3SJohannes Berg cs->key_idx_off = fwcs->key_idx_off; 53824ddddf3SJohannes Berg cs->key_idx_mask = fwcs->key_idx_mask; 53924ddddf3SJohannes Berg cs->key_idx_shift = fwcs->key_idx_shift; 54024ddddf3SJohannes Berg cs->mic_len = fwcs->mic_len; 54124ddddf3SJohannes Berg 54224ddddf3SJohannes Berg mvm->hw->cipher_schemes = mvm->cs; 54324ddddf3SJohannes Berg mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher; 544e705c121SKalle Valo hw->wiphy->n_cipher_suites++; 545e705c121SKalle Valo } 546e705c121SKalle Valo 547e705c121SKalle Valo ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 548e705c121SKalle Valo hw->wiphy->features |= 549e705c121SKalle Valo NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 550e705c121SKalle Valo NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 551e705c121SKalle Valo NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 552e705c121SKalle Valo 553e705c121SKalle Valo hw->sta_data_size = sizeof(struct iwl_mvm_sta); 554e705c121SKalle Valo hw->vif_data_size = sizeof(struct iwl_mvm_vif); 555e705c121SKalle Valo hw->chanctx_data_size = sizeof(u16); 556cfbc6c4cSSara Sharon hw->txq_data_size = sizeof(struct iwl_mvm_txq); 557e705c121SKalle Valo 558e705c121SKalle Valo hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 559e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_CLIENT) | 560e705c121SKalle Valo BIT(NL80211_IFTYPE_AP) | 561e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_GO) | 562e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_DEVICE) | 563e705c121SKalle Valo BIT(NL80211_IFTYPE_ADHOC); 564e705c121SKalle Valo 565e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 566e705c121SKalle Valo hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 567e705c121SKalle Valo if (iwl_mvm_is_lar_supported(mvm)) 568e705c121SKalle Valo hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 569e705c121SKalle Valo else 570e705c121SKalle Valo hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 571e705c121SKalle Valo REGULATORY_DISABLE_BEACON_HINTS; 572e705c121SKalle Valo 573e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 574e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 575e705c121SKalle Valo 576e705c121SKalle Valo hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 577e705c121SKalle Valo hw->wiphy->n_iface_combinations = 578e705c121SKalle Valo ARRAY_SIZE(iwl_mvm_iface_combinations); 579e705c121SKalle Valo 580e705c121SKalle Valo hw->wiphy->max_remain_on_channel_duration = 10000; 581e705c121SKalle Valo hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 582e705c121SKalle Valo 583e705c121SKalle Valo /* Extract MAC address */ 584e705c121SKalle Valo memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 585e705c121SKalle Valo hw->wiphy->addresses = mvm->addresses; 586e705c121SKalle Valo hw->wiphy->n_addresses = 1; 587e705c121SKalle Valo 588e705c121SKalle Valo /* Extract additional MAC addresses if available */ 589e705c121SKalle Valo num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 590e705c121SKalle Valo min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 591e705c121SKalle Valo 592e705c121SKalle Valo for (i = 1; i < num_mac; i++) { 593e705c121SKalle Valo memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 594e705c121SKalle Valo ETH_ALEN); 595e705c121SKalle Valo mvm->addresses[i].addr[5]++; 596e705c121SKalle Valo hw->wiphy->n_addresses++; 597e705c121SKalle Valo } 598e705c121SKalle Valo 599e705c121SKalle Valo iwl_mvm_reset_phy_ctxts(mvm); 600e705c121SKalle Valo 601e705c121SKalle Valo hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 602e705c121SKalle Valo 603e705c121SKalle Valo hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 604e705c121SKalle Valo 605e705c121SKalle Valo BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 606e705c121SKalle Valo BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 607e705c121SKalle Valo IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 608e705c121SKalle Valo 609e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 610e705c121SKalle Valo mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 611e705c121SKalle Valo else 612e705c121SKalle Valo mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 613e705c121SKalle Valo 61457fbcce3SJohannes Berg if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 61557fbcce3SJohannes Berg hw->wiphy->bands[NL80211_BAND_2GHZ] = 61657fbcce3SJohannes Berg &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 61757fbcce3SJohannes Berg if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 61857fbcce3SJohannes Berg hw->wiphy->bands[NL80211_BAND_5GHZ] = 61957fbcce3SJohannes Berg &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 620e705c121SKalle Valo 621e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 622e705c121SKalle Valo IWL_UCODE_TLV_CAPA_BEAMFORMER) && 623e705c121SKalle Valo fw_has_api(&mvm->fw->ucode_capa, 624e705c121SKalle Valo IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 62557fbcce3SJohannes Berg hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 626e705c121SKalle Valo IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 627e705c121SKalle Valo } 628e705c121SKalle Valo 629e705c121SKalle Valo hw->wiphy->hw_version = mvm->trans->hw_id; 630e705c121SKalle Valo 631e705c121SKalle Valo if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 632e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 633e705c121SKalle Valo else 634e705c121SKalle Valo hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 635e705c121SKalle Valo 636ca986ad9SArend Van Spriel hw->wiphy->max_sched_scan_reqs = 1; 637e705c121SKalle Valo hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 638e705c121SKalle Valo hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; 639e705c121SKalle Valo /* we create the 802.11 header and zero length SSID IE. */ 640e705c121SKalle Valo hw->wiphy->max_sched_scan_ie_len = 641e705c121SKalle Valo SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 642e705c121SKalle Valo hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 643e705c121SKalle Valo hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 644e705c121SKalle Valo 645e705c121SKalle Valo /* 646e705c121SKalle Valo * the firmware uses u8 for num of iterations, but 0xff is saved for 647e705c121SKalle Valo * infinite loop, so the maximum number of iterations is actually 254. 648e705c121SKalle Valo */ 649e705c121SKalle Valo hw->wiphy->max_sched_scan_plan_iterations = 254; 650e705c121SKalle Valo 651e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 652e705c121SKalle Valo NL80211_FEATURE_LOW_PRIORITY_SCAN | 653e705c121SKalle Valo NL80211_FEATURE_P2P_GO_OPPPS | 654a904a08bSPeer, Ilan NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 655e705c121SKalle Valo NL80211_FEATURE_DYNAMIC_SMPS | 656e705c121SKalle Valo NL80211_FEATURE_STATIC_SMPS | 657e705c121SKalle Valo NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 658e705c121SKalle Valo 659e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 660e705c121SKalle Valo IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 661e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 662e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 663e705c121SKalle Valo IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 664e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_QUIET; 665e705c121SKalle Valo 666e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 667e705c121SKalle Valo IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 668e705c121SKalle Valo hw->wiphy->features |= 669e705c121SKalle Valo NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 670e705c121SKalle Valo 671e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 672e705c121SKalle Valo IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 673e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 674e705c121SKalle Valo 675aacf8f18SAvrahams Stern if (fw_has_api(&mvm->fw->ucode_capa, 676aacf8f18SAvrahams Stern IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 677aacf8f18SAvrahams Stern wiphy_ext_feature_set(hw->wiphy, 678aacf8f18SAvrahams Stern NL80211_EXT_FEATURE_SCAN_START_TIME); 679aacf8f18SAvrahams Stern wiphy_ext_feature_set(hw->wiphy, 680aacf8f18SAvrahams Stern NL80211_EXT_FEATURE_BSS_PARENT_TSF); 681aacf8f18SAvrahams Stern wiphy_ext_feature_set(hw->wiphy, 682aacf8f18SAvrahams Stern NL80211_EXT_FEATURE_SET_SCAN_DWELL); 683aacf8f18SAvrahams Stern } 684aacf8f18SAvrahams Stern 6858f691af9SZamir, Roee if (iwl_mvm_is_oce_supported(mvm)) { 6868f691af9SZamir, Roee wiphy_ext_feature_set(hw->wiphy, 6878f691af9SZamir, Roee NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 6888f691af9SZamir, Roee wiphy_ext_feature_set(hw->wiphy, 6898f691af9SZamir, Roee NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 6908f691af9SZamir, Roee wiphy_ext_feature_set(hw->wiphy, 6918f691af9SZamir, Roee NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 6928f691af9SZamir, Roee wiphy_ext_feature_set(hw->wiphy, 6938f691af9SZamir, Roee NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 6948f691af9SZamir, Roee } 6958f691af9SZamir, Roee 6967360f99eSEmmanuel Grumbach if (mvm->nvm_data->sku_cap_11ax_enable && 6977360f99eSEmmanuel Grumbach !iwlwifi_mod_params.disable_11ax) { 6987360f99eSEmmanuel Grumbach hw->wiphy->iftype_ext_capab = he_iftypes_ext_capa; 6997360f99eSEmmanuel Grumbach hw->wiphy->num_iftype_ext_capab = 7007360f99eSEmmanuel Grumbach ARRAY_SIZE(he_iftypes_ext_capa); 7017360f99eSEmmanuel Grumbach } 7027360f99eSEmmanuel Grumbach 703e705c121SKalle Valo mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 704e705c121SKalle Valo 705e705c121SKalle Valo #ifdef CONFIG_PM_SLEEP 706e705c121SKalle Valo if (iwl_mvm_is_d0i3_supported(mvm) && 707e705c121SKalle Valo device_can_wakeup(mvm->trans->dev)) { 708e705c121SKalle Valo mvm->wowlan.flags = WIPHY_WOWLAN_ANY; 709e705c121SKalle Valo hw->wiphy->wowlan = &mvm->wowlan; 710e705c121SKalle Valo } 711e705c121SKalle Valo 712eef187a7SSara Sharon if (mvm->fw->img[IWL_UCODE_WOWLAN].num_sec && 713e705c121SKalle Valo mvm->trans->ops->d3_suspend && 714e705c121SKalle Valo mvm->trans->ops->d3_resume && 715e705c121SKalle Valo device_can_wakeup(mvm->trans->dev)) { 716e705c121SKalle Valo mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 717e705c121SKalle Valo WIPHY_WOWLAN_DISCONNECT | 718e705c121SKalle Valo WIPHY_WOWLAN_EAP_IDENTITY_REQ | 719e705c121SKalle Valo WIPHY_WOWLAN_RFKILL_RELEASE | 720e705c121SKalle Valo WIPHY_WOWLAN_NET_DETECT; 7213b37f4c9SJohannes Berg if (!iwlwifi_mod_params.swcrypto) 722e705c121SKalle Valo mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 723e705c121SKalle Valo WIPHY_WOWLAN_GTK_REKEY_FAILURE | 724e705c121SKalle Valo WIPHY_WOWLAN_4WAY_HANDSHAKE; 725e705c121SKalle Valo 726e705c121SKalle Valo mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 727e705c121SKalle Valo mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 728e705c121SKalle Valo mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 729e705c121SKalle Valo mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES; 730e705c121SKalle Valo hw->wiphy->wowlan = &mvm->wowlan; 731e705c121SKalle Valo } 732e705c121SKalle Valo #endif 733e705c121SKalle Valo 734e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 735e705c121SKalle Valo /* assign default bcast filtering configuration */ 736e705c121SKalle Valo mvm->bcast_filters = iwl_mvm_default_bcast_filters; 737e705c121SKalle Valo #endif 738e705c121SKalle Valo 739e705c121SKalle Valo ret = iwl_mvm_leds_init(mvm); 740e705c121SKalle Valo if (ret) 741e705c121SKalle Valo return ret; 742e705c121SKalle Valo 743e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 744e705c121SKalle Valo IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 745e705c121SKalle Valo IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 746e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 747e705c121SKalle Valo ieee80211_hw_set(hw, TDLS_WIDER_BW); 748e705c121SKalle Valo } 749e705c121SKalle Valo 750e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 751e705c121SKalle Valo IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 752e705c121SKalle Valo IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 753e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 754e705c121SKalle Valo } 755e705c121SKalle Valo 756e705c121SKalle Valo hw->netdev_features |= mvm->cfg->features; 7575e6a98dcSSara Sharon if (!iwl_mvm_is_csum_supported(mvm)) { 7585e6a98dcSSara Sharon hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS | 7595e6a98dcSSara Sharon NETIF_F_RXCSUM); 7605e6a98dcSSara Sharon /* We may support SW TX CSUM */ 76141837ca9SEmmanuel Grumbach if (IWL_MVM_SW_TX_CSUM_OFFLOAD) 7625e6a98dcSSara Sharon hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS; 7635e6a98dcSSara Sharon } 76441837ca9SEmmanuel Grumbach 765e705c121SKalle Valo ret = ieee80211_register_hw(mvm->hw); 766e705c121SKalle Valo if (ret) 767e705c121SKalle Valo iwl_mvm_leds_exit(mvm); 768de8ba41bSLiad Kaufman mvm->init_status |= IWL_MVM_INIT_STATUS_REG_HW_INIT_COMPLETE; 769e705c121SKalle Valo 77091b08c2dSAviya Erenfeld if (mvm->cfg->vht_mu_mimo_supported) 77191b08c2dSAviya Erenfeld wiphy_ext_feature_set(hw->wiphy, 77291b08c2dSAviya Erenfeld NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 77391b08c2dSAviya Erenfeld 774e705c121SKalle Valo return ret; 775e705c121SKalle Valo } 776e705c121SKalle Valo 777e705c121SKalle Valo static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm, 778e705c121SKalle Valo struct ieee80211_sta *sta, 779e705c121SKalle Valo struct sk_buff *skb) 780e705c121SKalle Valo { 781e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 782e705c121SKalle Valo bool defer = false; 783e705c121SKalle Valo 784e705c121SKalle Valo /* 785e705c121SKalle Valo * double check the IN_D0I3 flag both before and after 786e705c121SKalle Valo * taking the spinlock, in order to prevent taking 787e705c121SKalle Valo * the spinlock when not needed. 788e705c121SKalle Valo */ 789e705c121SKalle Valo if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))) 790e705c121SKalle Valo return false; 791e705c121SKalle Valo 792e705c121SKalle Valo spin_lock(&mvm->d0i3_tx_lock); 793e705c121SKalle Valo /* 794e705c121SKalle Valo * testing the flag again ensures the skb dequeue 795e705c121SKalle Valo * loop (on d0i3 exit) hasn't run yet. 796e705c121SKalle Valo */ 797e705c121SKalle Valo if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) 798e705c121SKalle Valo goto out; 799e705c121SKalle Valo 800e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_mac80211(sta); 8010ae98812SSara Sharon if (mvmsta->sta_id == IWL_MVM_INVALID_STA || 802e705c121SKalle Valo mvmsta->sta_id != mvm->d0i3_ap_sta_id) 803e705c121SKalle Valo goto out; 804e705c121SKalle Valo 805e705c121SKalle Valo __skb_queue_tail(&mvm->d0i3_tx, skb); 806e705c121SKalle Valo 807e705c121SKalle Valo /* trigger wakeup */ 808e705c121SKalle Valo iwl_mvm_ref(mvm, IWL_MVM_REF_TX); 809e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_TX); 810e705c121SKalle Valo 811e705c121SKalle Valo defer = true; 812e705c121SKalle Valo out: 813e705c121SKalle Valo spin_unlock(&mvm->d0i3_tx_lock); 814e705c121SKalle Valo return defer; 815e705c121SKalle Valo } 816e705c121SKalle Valo 817e705c121SKalle Valo static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 818e705c121SKalle Valo struct ieee80211_tx_control *control, 819e705c121SKalle Valo struct sk_buff *skb) 820e705c121SKalle Valo { 821e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 822e705c121SKalle Valo struct ieee80211_sta *sta = control->sta; 823e705c121SKalle Valo struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 824e705c121SKalle Valo struct ieee80211_hdr *hdr = (void *)skb->data; 825cfbc6c4cSSara Sharon bool offchannel = IEEE80211_SKB_CB(skb)->flags & 826cfbc6c4cSSara Sharon IEEE80211_TX_CTL_TX_OFFCHAN; 827e705c121SKalle Valo 828e705c121SKalle Valo if (iwl_mvm_is_radio_killed(mvm)) { 829e705c121SKalle Valo IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 830e705c121SKalle Valo goto drop; 831e705c121SKalle Valo } 832e705c121SKalle Valo 833cfbc6c4cSSara Sharon if (offchannel && 834e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 835e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 836e705c121SKalle Valo goto drop; 837e705c121SKalle Valo 838eb045e6eSDavid Spinadel /* treat non-bufferable MMPDUs on AP interfaces as broadcast */ 839eb045e6eSDavid Spinadel if ((info->control.vif->type == NL80211_IFTYPE_AP || 840eb045e6eSDavid Spinadel info->control.vif->type == NL80211_IFTYPE_ADHOC) && 841e705c121SKalle Valo ieee80211_is_mgmt(hdr->frame_control) && 842eb045e6eSDavid Spinadel !ieee80211_is_bufferable_mmpdu(hdr->frame_control)) 843e705c121SKalle Valo sta = NULL; 844e705c121SKalle Valo 845dc1aca22SAndrei Otcheretianski /* If there is no sta, and it's not offchannel - send through AP */ 846cfbc6c4cSSara Sharon if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 847cfbc6c4cSSara Sharon !offchannel) { 848dc1aca22SAndrei Otcheretianski struct iwl_mvm_vif *mvmvif = 849dc1aca22SAndrei Otcheretianski iwl_mvm_vif_from_mac80211(info->control.vif); 850dc1aca22SAndrei Otcheretianski u8 ap_sta_id = READ_ONCE(mvmvif->ap_sta_id); 851dc1aca22SAndrei Otcheretianski 852dc1aca22SAndrei Otcheretianski if (ap_sta_id < IWL_MVM_STATION_COUNT) { 853dc1aca22SAndrei Otcheretianski /* mac80211 holds rcu read lock */ 854dc1aca22SAndrei Otcheretianski sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 855dc1aca22SAndrei Otcheretianski if (IS_ERR_OR_NULL(sta)) 856dc1aca22SAndrei Otcheretianski goto drop; 857dc1aca22SAndrei Otcheretianski } 858dc1aca22SAndrei Otcheretianski } 859dc1aca22SAndrei Otcheretianski 860e705c121SKalle Valo if (sta) { 861e705c121SKalle Valo if (iwl_mvm_defer_tx(mvm, sta, skb)) 862e705c121SKalle Valo return; 863e705c121SKalle Valo if (iwl_mvm_tx_skb(mvm, skb, sta)) 864e705c121SKalle Valo goto drop; 865e705c121SKalle Valo return; 866e705c121SKalle Valo } 867e705c121SKalle Valo 868e705c121SKalle Valo if (iwl_mvm_tx_skb_non_sta(mvm, skb)) 869e705c121SKalle Valo goto drop; 870e705c121SKalle Valo return; 871e705c121SKalle Valo drop: 872e705c121SKalle Valo ieee80211_free_txskb(hw, skb); 873e705c121SKalle Valo } 874e705c121SKalle Valo 875cfbc6c4cSSara Sharon void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 876cfbc6c4cSSara Sharon { 877cfbc6c4cSSara Sharon struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 878cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 879cfbc6c4cSSara Sharon struct sk_buff *skb = NULL; 880cfbc6c4cSSara Sharon 881fba8248eSSara Sharon /* 882fba8248eSSara Sharon * No need for threads to be pending here, they can leave the first 883fba8248eSSara Sharon * taker all the work. 884fba8248eSSara Sharon * 885fba8248eSSara Sharon * mvmtxq->tx_request logic: 886fba8248eSSara Sharon * 887fba8248eSSara Sharon * If 0, no one is currently TXing, set to 1 to indicate current thread 888fba8248eSSara Sharon * will now start TX and other threads should quit. 889fba8248eSSara Sharon * 890fba8248eSSara Sharon * If 1, another thread is currently TXing, set to 2 to indicate to 891fba8248eSSara Sharon * that thread that there was another request. Since that request may 892fba8248eSSara Sharon * have raced with the check whether the queue is empty, the TXing 893fba8248eSSara Sharon * thread should check the queue's status one more time before leaving. 894fba8248eSSara Sharon * This check is done in order to not leave any TX hanging in the queue 895fba8248eSSara Sharon * until the next TX invocation (which may not even happen). 896fba8248eSSara Sharon * 897fba8248eSSara Sharon * If 2, another thread is currently TXing, and it will already double 898fba8248eSSara Sharon * check the queue, so do nothing. 899fba8248eSSara Sharon */ 900fba8248eSSara Sharon if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 901fba8248eSSara Sharon return; 902cfbc6c4cSSara Sharon 903cfbc6c4cSSara Sharon rcu_read_lock(); 904fba8248eSSara Sharon do { 905cfbc6c4cSSara Sharon while (likely(!mvmtxq->stopped && 906cfbc6c4cSSara Sharon (mvm->trans->system_pm_mode == 907cfbc6c4cSSara Sharon IWL_PLAT_PM_MODE_DISABLED))) { 908cfbc6c4cSSara Sharon skb = ieee80211_tx_dequeue(hw, txq); 909cfbc6c4cSSara Sharon 910cfbc6c4cSSara Sharon if (!skb) 911cfbc6c4cSSara Sharon break; 912cfbc6c4cSSara Sharon 913cfbc6c4cSSara Sharon if (!txq->sta) 914cfbc6c4cSSara Sharon iwl_mvm_tx_skb_non_sta(mvm, skb); 915cfbc6c4cSSara Sharon else 916cfbc6c4cSSara Sharon iwl_mvm_tx_skb(mvm, skb, txq->sta); 917cfbc6c4cSSara Sharon } 918fba8248eSSara Sharon } while (atomic_dec_return(&mvmtxq->tx_request)); 919cfbc6c4cSSara Sharon rcu_read_unlock(); 920cfbc6c4cSSara Sharon } 921cfbc6c4cSSara Sharon 922cfbc6c4cSSara Sharon static void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 923cfbc6c4cSSara Sharon struct ieee80211_txq *txq) 924cfbc6c4cSSara Sharon { 925cfbc6c4cSSara Sharon struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 926cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 927cfbc6c4cSSara Sharon 928cfbc6c4cSSara Sharon /* 929cfbc6c4cSSara Sharon * Please note that racing is handled very carefully here: 930cfbc6c4cSSara Sharon * mvmtxq->txq_id is updated during allocation, and mvmtxq->list is 931cfbc6c4cSSara Sharon * deleted afterwards. 932cfbc6c4cSSara Sharon * This means that if: 933cfbc6c4cSSara Sharon * mvmtxq->txq_id != INVALID_QUEUE && list_empty(&mvmtxq->list): 934cfbc6c4cSSara Sharon * queue is allocated and we can TX. 935cfbc6c4cSSara Sharon * mvmtxq->txq_id != INVALID_QUEUE && !list_empty(&mvmtxq->list): 936cfbc6c4cSSara Sharon * a race, should defer the frame. 937cfbc6c4cSSara Sharon * mvmtxq->txq_id == INVALID_QUEUE && list_empty(&mvmtxq->list): 938cfbc6c4cSSara Sharon * need to allocate the queue and defer the frame. 939cfbc6c4cSSara Sharon * mvmtxq->txq_id == INVALID_QUEUE && !list_empty(&mvmtxq->list): 940cfbc6c4cSSara Sharon * queue is already scheduled for allocation, no need to allocate, 941cfbc6c4cSSara Sharon * should defer the frame. 942cfbc6c4cSSara Sharon */ 943cfbc6c4cSSara Sharon 944cfbc6c4cSSara Sharon /* If the queue is allocated TX and return. */ 945cfbc6c4cSSara Sharon if (!txq->sta || mvmtxq->txq_id != IWL_MVM_INVALID_QUEUE) { 946cfbc6c4cSSara Sharon /* 947cfbc6c4cSSara Sharon * Check that list is empty to avoid a race where txq_id is 948cfbc6c4cSSara Sharon * already updated, but the queue allocation work wasn't 949cfbc6c4cSSara Sharon * finished 950cfbc6c4cSSara Sharon */ 951cfbc6c4cSSara Sharon if (unlikely(txq->sta && !list_empty(&mvmtxq->list))) 952cfbc6c4cSSara Sharon return; 953cfbc6c4cSSara Sharon 954cfbc6c4cSSara Sharon iwl_mvm_mac_itxq_xmit(hw, txq); 955cfbc6c4cSSara Sharon return; 956cfbc6c4cSSara Sharon } 957cfbc6c4cSSara Sharon 958cfbc6c4cSSara Sharon /* The list is being deleted only after the queue is fully allocated. */ 959cfbc6c4cSSara Sharon if (!list_empty(&mvmtxq->list)) 960cfbc6c4cSSara Sharon return; 961cfbc6c4cSSara Sharon 962cfbc6c4cSSara Sharon list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 963cfbc6c4cSSara Sharon schedule_work(&mvm->add_stream_wk); 964cfbc6c4cSSara Sharon } 965cfbc6c4cSSara Sharon 966e705c121SKalle Valo #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 967e705c121SKalle Valo do { \ 968e705c121SKalle Valo if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 969e705c121SKalle Valo break; \ 9707174beb6SJohannes Berg iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 971e705c121SKalle Valo } while (0) 972e705c121SKalle Valo 973e705c121SKalle Valo static void 974e705c121SKalle Valo iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 975e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 976e705c121SKalle Valo enum ieee80211_ampdu_mlme_action action) 977e705c121SKalle Valo { 978e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 979e705c121SKalle Valo struct iwl_fw_dbg_trigger_ba *ba_trig; 980e705c121SKalle Valo 9816c042d75SSara Sharon trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 9826c042d75SSara Sharon FW_DBG_TRIGGER_BA); 9836c042d75SSara Sharon if (!trig) 984e705c121SKalle Valo return; 985e705c121SKalle Valo 986e705c121SKalle Valo ba_trig = (void *)trig->data; 987e705c121SKalle Valo 988e705c121SKalle Valo switch (action) { 989e705c121SKalle Valo case IEEE80211_AMPDU_TX_OPERATIONAL: { 990e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 991e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 992e705c121SKalle Valo 993e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 994e705c121SKalle Valo "TX AGG START: MAC %pM tid %d ssn %d\n", 995e705c121SKalle Valo sta->addr, tid, tid_data->ssn); 996e705c121SKalle Valo break; 997e705c121SKalle Valo } 998e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_CONT: 999e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 1000e705c121SKalle Valo "TX AGG STOP: MAC %pM tid %d\n", 1001e705c121SKalle Valo sta->addr, tid); 1002e705c121SKalle Valo break; 1003e705c121SKalle Valo case IEEE80211_AMPDU_RX_START: 1004e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 1005e705c121SKalle Valo "RX AGG START: MAC %pM tid %d ssn %d\n", 1006e705c121SKalle Valo sta->addr, tid, rx_ba_ssn); 1007e705c121SKalle Valo break; 1008e705c121SKalle Valo case IEEE80211_AMPDU_RX_STOP: 1009e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 1010e705c121SKalle Valo "RX AGG STOP: MAC %pM tid %d\n", 1011e705c121SKalle Valo sta->addr, tid); 1012e705c121SKalle Valo break; 1013e705c121SKalle Valo default: 1014e705c121SKalle Valo break; 1015e705c121SKalle Valo } 1016e705c121SKalle Valo } 1017e705c121SKalle Valo 1018e705c121SKalle Valo static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 1019e705c121SKalle Valo struct ieee80211_vif *vif, 102050ea05efSSara Sharon struct ieee80211_ampdu_params *params) 1021e705c121SKalle Valo { 1022e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1023e705c121SKalle Valo int ret; 1024e705c121SKalle Valo bool tx_agg_ref = false; 102550ea05efSSara Sharon struct ieee80211_sta *sta = params->sta; 102650ea05efSSara Sharon enum ieee80211_ampdu_mlme_action action = params->action; 102750ea05efSSara Sharon u16 tid = params->tid; 102850ea05efSSara Sharon u16 *ssn = ¶ms->ssn; 1029514c3069SLuca Coelho u16 buf_size = params->buf_size; 1030bb81bb68SEmmanuel Grumbach bool amsdu = params->amsdu; 103110b2b201SSara Sharon u16 timeout = params->timeout; 1032e705c121SKalle Valo 1033e705c121SKalle Valo IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 1034e705c121SKalle Valo sta->addr, tid, action); 1035e705c121SKalle Valo 1036e705c121SKalle Valo if (!(mvm->nvm_data->sku_cap_11n_enable)) 1037e705c121SKalle Valo return -EACCES; 1038e705c121SKalle Valo 1039e705c121SKalle Valo /* return from D0i3 before starting a new Tx aggregation */ 1040e705c121SKalle Valo switch (action) { 1041e705c121SKalle Valo case IEEE80211_AMPDU_TX_START: 1042e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_CONT: 1043e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH: 1044e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1045e705c121SKalle Valo case IEEE80211_AMPDU_TX_OPERATIONAL: 1046e705c121SKalle Valo /* 1047e705c121SKalle Valo * for tx start, wait synchronously until D0i3 exit to 1048e705c121SKalle Valo * get the correct sequence number for the tid. 1049e705c121SKalle Valo * additionally, some other ampdu actions use direct 1050e705c121SKalle Valo * target access, which is not handled automatically 1051e705c121SKalle Valo * by the trans layer (unlike commands), so wait for 1052e705c121SKalle Valo * d0i3 exit in these cases as well. 1053e705c121SKalle Valo */ 1054e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG); 1055e705c121SKalle Valo if (ret) 1056e705c121SKalle Valo return ret; 1057e705c121SKalle Valo 1058e705c121SKalle Valo tx_agg_ref = true; 1059e705c121SKalle Valo break; 1060e705c121SKalle Valo default: 1061e705c121SKalle Valo break; 1062e705c121SKalle Valo } 1063e705c121SKalle Valo 1064e705c121SKalle Valo mutex_lock(&mvm->mutex); 1065e705c121SKalle Valo 1066e705c121SKalle Valo switch (action) { 1067e705c121SKalle Valo case IEEE80211_AMPDU_RX_START: 1068b0ffe455SJohannes Berg if (iwl_mvm_vif_from_mac80211(vif)->ap_sta_id == 1069b0ffe455SJohannes Berg iwl_mvm_sta_from_mac80211(sta)->sta_id) { 1070b0ffe455SJohannes Berg struct iwl_mvm_vif *mvmvif; 1071b0ffe455SJohannes Berg u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 1072b0ffe455SJohannes Berg struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 1073b0ffe455SJohannes Berg 1074b0ffe455SJohannes Berg mdata->opened_rx_ba_sessions = true; 1075b0ffe455SJohannes Berg mvmvif = iwl_mvm_vif_from_mac80211(vif); 1076b0ffe455SJohannes Berg cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 1077b0ffe455SJohannes Berg } 1078e78da25eSJohannes Berg if (!iwl_enable_rx_ampdu()) { 1079e705c121SKalle Valo ret = -EINVAL; 1080e705c121SKalle Valo break; 1081e705c121SKalle Valo } 108210b2b201SSara Sharon ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 108310b2b201SSara Sharon timeout); 1084e705c121SKalle Valo break; 1085e705c121SKalle Valo case IEEE80211_AMPDU_RX_STOP: 108610b2b201SSara Sharon ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 108710b2b201SSara Sharon timeout); 1088e705c121SKalle Valo break; 1089e705c121SKalle Valo case IEEE80211_AMPDU_TX_START: 1090e78da25eSJohannes Berg if (!iwl_enable_tx_ampdu()) { 1091e705c121SKalle Valo ret = -EINVAL; 1092e705c121SKalle Valo break; 1093e705c121SKalle Valo } 1094e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1095e705c121SKalle Valo break; 1096e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_CONT: 1097e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1098e705c121SKalle Valo break; 1099e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH: 1100e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1101e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1102e705c121SKalle Valo break; 1103e705c121SKalle Valo case IEEE80211_AMPDU_TX_OPERATIONAL: 1104bb81bb68SEmmanuel Grumbach ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1105bb81bb68SEmmanuel Grumbach buf_size, amsdu); 1106e705c121SKalle Valo break; 1107e705c121SKalle Valo default: 1108e705c121SKalle Valo WARN_ON_ONCE(1); 1109e705c121SKalle Valo ret = -EINVAL; 1110e705c121SKalle Valo break; 1111e705c121SKalle Valo } 1112e705c121SKalle Valo 1113e705c121SKalle Valo if (!ret) { 1114e705c121SKalle Valo u16 rx_ba_ssn = 0; 1115e705c121SKalle Valo 1116e705c121SKalle Valo if (action == IEEE80211_AMPDU_RX_START) 1117e705c121SKalle Valo rx_ba_ssn = *ssn; 1118e705c121SKalle Valo 1119e705c121SKalle Valo iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1120e705c121SKalle Valo rx_ba_ssn, action); 1121e705c121SKalle Valo } 1122e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1123e705c121SKalle Valo 1124e705c121SKalle Valo /* 1125e705c121SKalle Valo * If the tid is marked as started, we won't use it for offloaded 1126e705c121SKalle Valo * traffic on the next D0i3 entry. It's safe to unref. 1127e705c121SKalle Valo */ 1128e705c121SKalle Valo if (tx_agg_ref) 1129e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); 1130e705c121SKalle Valo 1131e705c121SKalle Valo return ret; 1132e705c121SKalle Valo } 1133e705c121SKalle Valo 1134e705c121SKalle Valo static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1135e705c121SKalle Valo struct ieee80211_vif *vif) 1136e705c121SKalle Valo { 1137e705c121SKalle Valo struct iwl_mvm *mvm = data; 1138e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1139e705c121SKalle Valo 1140e705c121SKalle Valo mvmvif->uploaded = false; 11410ae98812SSara Sharon mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1142e705c121SKalle Valo 1143e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 1144e705c121SKalle Valo iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1145e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 1146e705c121SKalle Valo 1147e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 1148e705c121SKalle Valo memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 114986e177d8SGregory Greenman memset(&mvmvif->probe_resp_data, 0, sizeof(mvmvif->probe_resp_data)); 1150e705c121SKalle Valo } 1151e705c121SKalle Valo 1152e705c121SKalle Valo static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1153e705c121SKalle Valo { 1154e705c121SKalle Valo /* clear the D3 reconfig, we only need it to avoid dumping a 1155e705c121SKalle Valo * firmware coredump on reconfiguration, we shouldn't do that 1156e705c121SKalle Valo * on D3->D0 transition 1157e705c121SKalle Valo */ 1158e705c121SKalle Valo if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) { 11597174beb6SJohannes Berg mvm->fwrt.dump.desc = &iwl_dump_desc_assert; 11607174beb6SJohannes Berg iwl_fw_error_dump(&mvm->fwrt); 1161e705c121SKalle Valo } 1162e705c121SKalle Valo 1163e705c121SKalle Valo /* cleanup all stale references (scan, roc), but keep the 1164e705c121SKalle Valo * ucode_down ref until reconfig is complete 1165e705c121SKalle Valo */ 1166e705c121SKalle Valo iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN); 1167e705c121SKalle Valo 1168fcb6b92aSChaya Rachel Ivgi iwl_mvm_stop_device(mvm); 1169e705c121SKalle Valo 11709bf13beeSJohannes Berg mvm->cur_aid = 0; 11719bf13beeSJohannes Berg 1172e705c121SKalle Valo mvm->scan_status = 0; 1173e705c121SKalle Valo mvm->ps_disabled = false; 1174e705c121SKalle Valo mvm->calibrating = false; 1175e705c121SKalle Valo 1176e705c121SKalle Valo /* just in case one was running */ 1177305d236eSEliad Peller iwl_mvm_cleanup_roc_te(mvm); 1178e705c121SKalle Valo ieee80211_remain_on_channel_expired(mvm->hw); 1179e705c121SKalle Valo 1180e705c121SKalle Valo /* 1181e705c121SKalle Valo * cleanup all interfaces, even inactive ones, as some might have 1182e705c121SKalle Valo * gone down during the HW restart 1183e705c121SKalle Valo */ 1184e705c121SKalle Valo ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1185e705c121SKalle Valo 1186e705c121SKalle Valo mvm->p2p_device_vif = NULL; 11870ae98812SSara Sharon mvm->d0i3_ap_sta_id = IWL_MVM_INVALID_STA; 1188e705c121SKalle Valo 1189e705c121SKalle Valo iwl_mvm_reset_phy_ctxts(mvm); 11909c3deeb5SLuca Coelho memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1191e705c121SKalle Valo memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1192e705c121SKalle Valo memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1193e705c121SKalle Valo 1194e705c121SKalle Valo ieee80211_wake_queues(mvm->hw); 1195e705c121SKalle Valo 1196e705c121SKalle Valo /* clear any stale d0i3 state */ 1197e705c121SKalle Valo clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); 1198e705c121SKalle Valo 1199e705c121SKalle Valo mvm->vif_count = 0; 1200e705c121SKalle Valo mvm->rx_ba_sessions = 0; 12017174beb6SJohannes Berg mvm->fwrt.dump.conf = FW_DBG_INVALID; 1202baf41bc3SShaul Triebitz mvm->monitor_on = false; 1203e705c121SKalle Valo 1204e705c121SKalle Valo /* keep statistics ticking */ 1205e705c121SKalle Valo iwl_mvm_accu_radio_stats(mvm); 1206e705c121SKalle Valo } 1207e705c121SKalle Valo 1208e705c121SKalle Valo int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1209e705c121SKalle Valo { 1210e705c121SKalle Valo int ret; 1211e705c121SKalle Valo 1212e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1213e705c121SKalle Valo 1214bf8b286fSJohannes Berg if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1215bf8b286fSJohannes Berg /* 1216bf8b286fSJohannes Berg * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1217bf8b286fSJohannes Berg * so later code will - from now on - see that we're doing it. 1218bf8b286fSJohannes Berg */ 1219bf8b286fSJohannes Berg set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1220bf8b286fSJohannes Berg clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1221e705c121SKalle Valo /* Clean up some internal and mac80211 state on restart */ 1222e705c121SKalle Valo iwl_mvm_restart_cleanup(mvm); 1223a42b2af3SLuca Coelho } else { 1224a42b2af3SLuca Coelho /* Hold the reference to prevent runtime suspend while 1225a42b2af3SLuca Coelho * the start procedure runs. It's a bit confusing 1226a42b2af3SLuca Coelho * that the UCODE_DOWN reference is taken, but it just 1227a42b2af3SLuca Coelho * means "UCODE is not UP yet". ( TODO: rename this 1228a42b2af3SLuca Coelho * reference). 1229a42b2af3SLuca Coelho */ 1230a42b2af3SLuca Coelho iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); 1231a42b2af3SLuca Coelho } 1232e705c121SKalle Valo ret = iwl_mvm_up(mvm); 1233e705c121SKalle Valo 1234da2eb669SSara Sharon iwl_fw_dbg_apply_point(&mvm->fwrt, IWL_FW_INI_APPLY_POST_INIT); 1235da2eb669SSara Sharon 1236e705c121SKalle Valo if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1237e705c121SKalle Valo /* Something went wrong - we need to finish some cleanup 1238e705c121SKalle Valo * that normally iwl_mvm_mac_restart_complete() below 1239e705c121SKalle Valo * would do. 1240e705c121SKalle Valo */ 1241e705c121SKalle Valo clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1242a75b9b33SLuca Coelho #ifdef CONFIG_PM 1243e705c121SKalle Valo iwl_mvm_d0i3_enable_tx(mvm, NULL); 1244a75b9b33SLuca Coelho #endif 1245e705c121SKalle Valo } 1246e705c121SKalle Valo 1247e705c121SKalle Valo return ret; 1248e705c121SKalle Valo } 1249e705c121SKalle Valo 1250e705c121SKalle Valo static int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1251e705c121SKalle Valo { 1252e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1253e705c121SKalle Valo int ret; 1254e705c121SKalle Valo 1255e705c121SKalle Valo /* Some hw restart cleanups must not hold the mutex */ 1256e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1257e705c121SKalle Valo /* 1258e705c121SKalle Valo * Make sure we are out of d0i3. This is needed 1259e705c121SKalle Valo * to make sure the reference accounting is correct 1260e705c121SKalle Valo * (and there is no stale d0i3_exit_work). 1261e705c121SKalle Valo */ 1262e705c121SKalle Valo wait_event_timeout(mvm->d0i3_exit_waitq, 1263e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_IN_D0I3, 1264e705c121SKalle Valo &mvm->status), 1265e705c121SKalle Valo HZ); 1266e705c121SKalle Valo } 1267e705c121SKalle Valo 1268e705c121SKalle Valo mutex_lock(&mvm->mutex); 1269e705c121SKalle Valo ret = __iwl_mvm_mac_start(mvm); 1270e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1271e705c121SKalle Valo 1272e705c121SKalle Valo return ret; 1273e705c121SKalle Valo } 1274e705c121SKalle Valo 1275e705c121SKalle Valo static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1276e705c121SKalle Valo { 1277e705c121SKalle Valo int ret; 1278e705c121SKalle Valo 1279e705c121SKalle Valo mutex_lock(&mvm->mutex); 1280e705c121SKalle Valo 1281e705c121SKalle Valo clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1282a75b9b33SLuca Coelho #ifdef CONFIG_PM 1283e705c121SKalle Valo iwl_mvm_d0i3_enable_tx(mvm, NULL); 1284a75b9b33SLuca Coelho #endif 1285e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, true, NULL); 1286e705c121SKalle Valo if (ret) 1287e705c121SKalle Valo IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1288e705c121SKalle Valo ret); 1289e705c121SKalle Valo 1290e705c121SKalle Valo /* allow transport/FW low power modes */ 1291e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN); 1292e705c121SKalle Valo 1293e705c121SKalle Valo /* 1294e705c121SKalle Valo * If we have TDLS peers, remove them. We don't know the last seqno/PN 1295e705c121SKalle Valo * of packets the FW sent out, so we must reconnect. 1296e705c121SKalle Valo */ 1297e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 1298e705c121SKalle Valo 1299e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1300e705c121SKalle Valo } 1301e705c121SKalle Valo 1302e705c121SKalle Valo static void iwl_mvm_resume_complete(struct iwl_mvm *mvm) 1303e705c121SKalle Valo { 1304b7282643SLuca Coelho if (iwl_mvm_is_d0i3_supported(mvm) && 1305b7282643SLuca Coelho iwl_mvm_enter_d0i3_on_suspend(mvm)) 1306b7282643SLuca Coelho WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq, 1307e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_IN_D0I3, 1308e705c121SKalle Valo &mvm->status), 1309b7282643SLuca Coelho HZ), 1310b7282643SLuca Coelho "D0i3 exit on resume timed out\n"); 1311e705c121SKalle Valo } 1312e705c121SKalle Valo 1313e705c121SKalle Valo static void 1314e705c121SKalle Valo iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1315e705c121SKalle Valo enum ieee80211_reconfig_type reconfig_type) 1316e705c121SKalle Valo { 1317e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1318e705c121SKalle Valo 1319e705c121SKalle Valo switch (reconfig_type) { 1320e705c121SKalle Valo case IEEE80211_RECONFIG_TYPE_RESTART: 1321e705c121SKalle Valo iwl_mvm_restart_complete(mvm); 1322e705c121SKalle Valo break; 1323e705c121SKalle Valo case IEEE80211_RECONFIG_TYPE_SUSPEND: 1324e705c121SKalle Valo iwl_mvm_resume_complete(mvm); 1325e705c121SKalle Valo break; 1326e705c121SKalle Valo } 1327e705c121SKalle Valo } 1328e705c121SKalle Valo 1329e705c121SKalle Valo void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1330e705c121SKalle Valo { 1331e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1332e705c121SKalle Valo 1333e705c121SKalle Valo /* firmware counters are obviously reset now, but we shouldn't 1334e705c121SKalle Valo * partially track so also clear the fw_reset_accu counters. 1335e705c121SKalle Valo */ 1336e705c121SKalle Valo memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1337e705c121SKalle Valo 1338e705c121SKalle Valo /* async_handlers_wk is now blocked */ 1339e705c121SKalle Valo 1340e705c121SKalle Valo /* 1341e705c121SKalle Valo * The work item could be running or queued if the 1342e705c121SKalle Valo * ROC time event stops just as we get here. 1343e705c121SKalle Valo */ 1344e705c121SKalle Valo flush_work(&mvm->roc_done_wk); 1345e705c121SKalle Valo 1346fcb6b92aSChaya Rachel Ivgi iwl_mvm_stop_device(mvm); 1347e705c121SKalle Valo 1348e705c121SKalle Valo iwl_mvm_async_handlers_purge(mvm); 1349e705c121SKalle Valo /* async_handlers_list is empty and will stay empty: HW is stopped */ 1350e705c121SKalle Valo 1351e705c121SKalle Valo /* the fw is stopped, the aux sta is dead: clean up driver state */ 1352e705c121SKalle Valo iwl_mvm_del_aux_sta(mvm); 1353e705c121SKalle Valo 1354e705c121SKalle Valo /* 1355155f7e04SEmmanuel Grumbach * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1356155f7e04SEmmanuel Grumbach * hw (as restart_complete() won't be called in this case) and mac80211 1357155f7e04SEmmanuel Grumbach * won't execute the restart. 1358e705c121SKalle Valo * But make sure to cleanup interfaces that have gone down before/during 1359e705c121SKalle Valo * HW restart was requested. 1360e705c121SKalle Valo */ 1361155f7e04SEmmanuel Grumbach if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1362155f7e04SEmmanuel Grumbach test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1363155f7e04SEmmanuel Grumbach &mvm->status)) 1364e705c121SKalle Valo ieee80211_iterate_interfaces(mvm->hw, 0, 1365e705c121SKalle Valo iwl_mvm_cleanup_iterator, mvm); 1366e705c121SKalle Valo 1367e705c121SKalle Valo /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1368e705c121SKalle Valo * make sure there's nothing left there and warn if any is found. 1369e705c121SKalle Valo */ 1370e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1371e705c121SKalle Valo int i; 1372e705c121SKalle Valo 1373e705c121SKalle Valo for (i = 0; i < mvm->max_scans; i++) { 1374e705c121SKalle Valo if (WARN_ONCE(mvm->scan_uid_status[i], 1375e705c121SKalle Valo "UMAC scan UID %d status was not cleaned\n", 1376e705c121SKalle Valo i)) 1377e705c121SKalle Valo mvm->scan_uid_status[i] = 0; 1378e705c121SKalle Valo } 1379e705c121SKalle Valo } 1380e705c121SKalle Valo } 1381e705c121SKalle Valo 1382e705c121SKalle Valo static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1383e705c121SKalle Valo { 1384e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1385e705c121SKalle Valo 1386e705c121SKalle Valo flush_work(&mvm->d0i3_exit_work); 1387e705c121SKalle Valo flush_work(&mvm->async_handlers_wk); 138824afba76SLiad Kaufman flush_work(&mvm->add_stream_wk); 1389771147b0SJohannes Berg 1390771147b0SJohannes Berg /* 1391771147b0SJohannes Berg * Lock and clear the firmware running bit here already, so that 1392771147b0SJohannes Berg * new commands coming in elsewhere, e.g. from debugfs, will not 1393771147b0SJohannes Berg * be able to proceed. This is important here because one of those 13947174beb6SJohannes Berg * debugfs files causes the firmware dump to be triggered, and if we 1395771147b0SJohannes Berg * don't stop debugfs accesses before canceling that it could be 1396771147b0SJohannes Berg * retriggered after we flush it but before we've cleared the bit. 1397771147b0SJohannes Berg */ 1398771147b0SJohannes Berg clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1399771147b0SJohannes Berg 14007174beb6SJohannes Berg iwl_fw_cancel_dump(&mvm->fwrt); 1401d3a108a4SAndrei Otcheretianski cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 140269e04642SLuca Coelho cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 14037174beb6SJohannes Berg iwl_fw_free_dump_desc(&mvm->fwrt); 1404e705c121SKalle Valo 1405e705c121SKalle Valo mutex_lock(&mvm->mutex); 1406e705c121SKalle Valo __iwl_mvm_mac_stop(mvm); 1407e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1408e705c121SKalle Valo 1409e705c121SKalle Valo /* 1410e705c121SKalle Valo * The worker might have been waiting for the mutex, let it run and 1411e705c121SKalle Valo * discover that its list is now empty. 1412e705c121SKalle Valo */ 1413e705c121SKalle Valo cancel_work_sync(&mvm->async_handlers_wk); 1414e705c121SKalle Valo } 1415e705c121SKalle Valo 1416e705c121SKalle Valo static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1417e705c121SKalle Valo { 1418e705c121SKalle Valo u16 i; 1419e705c121SKalle Valo 1420e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1421e705c121SKalle Valo 1422e705c121SKalle Valo for (i = 0; i < NUM_PHY_CTX; i++) 1423e705c121SKalle Valo if (!mvm->phy_ctxts[i].ref) 1424e705c121SKalle Valo return &mvm->phy_ctxts[i]; 1425e705c121SKalle Valo 1426e705c121SKalle Valo IWL_ERR(mvm, "No available PHY context\n"); 1427e705c121SKalle Valo return NULL; 1428e705c121SKalle Valo } 1429e705c121SKalle Valo 1430e705c121SKalle Valo static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1431e705c121SKalle Valo s16 tx_power) 1432e705c121SKalle Valo { 14330791c2fcSHaim Dreyfuss int len; 14340791c2fcSHaim Dreyfuss union { 14350791c2fcSHaim Dreyfuss struct iwl_dev_tx_power_cmd v5; 14360791c2fcSHaim Dreyfuss struct iwl_dev_tx_power_cmd_v4 v4; 14370791c2fcSHaim Dreyfuss } cmd = { 14380791c2fcSHaim Dreyfuss .v5.v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 14390791c2fcSHaim Dreyfuss .v5.v3.mac_context_id = 1440e705c121SKalle Valo cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 14410791c2fcSHaim Dreyfuss .v5.v3.pwr_restriction = cpu_to_le16(8 * tx_power), 1442e705c121SKalle Valo }; 1443e705c121SKalle Valo 1444e705c121SKalle Valo if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 14450791c2fcSHaim Dreyfuss cmd.v5.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1446e705c121SKalle Valo 14470791c2fcSHaim Dreyfuss if (fw_has_api(&mvm->fw->ucode_capa, 14480791c2fcSHaim Dreyfuss IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 14490791c2fcSHaim Dreyfuss len = sizeof(cmd.v5); 14500791c2fcSHaim Dreyfuss else if (fw_has_capa(&mvm->fw->ucode_capa, 14510791c2fcSHaim Dreyfuss IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 14520791c2fcSHaim Dreyfuss len = sizeof(cmd.v4); 14530791c2fcSHaim Dreyfuss else 14540791c2fcSHaim Dreyfuss len = sizeof(cmd.v4.v3); 1455e705c121SKalle Valo 1456e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); 1457e705c121SKalle Valo } 1458e705c121SKalle Valo 1459e705c121SKalle Valo static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1460e705c121SKalle Valo struct ieee80211_vif *vif) 1461e705c121SKalle Valo { 1462e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1463e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1464e705c121SKalle Valo int ret; 1465e705c121SKalle Valo 1466e705c121SKalle Valo mvmvif->mvm = mvm; 146786e177d8SGregory Greenman RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1468e705c121SKalle Valo 1469e705c121SKalle Valo /* 1470e705c121SKalle Valo * make sure D0i3 exit is completed, otherwise a target access 1471e705c121SKalle Valo * during tx queue configuration could be done when still in 1472e705c121SKalle Valo * D0i3 state. 1473e705c121SKalle Valo */ 1474e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF); 1475e705c121SKalle Valo if (ret) 1476e705c121SKalle Valo return ret; 1477e705c121SKalle Valo 1478e705c121SKalle Valo /* 1479e705c121SKalle Valo * Not much to do here. The stack will not allow interface 1480e705c121SKalle Valo * types or combinations that we didn't advertise, so we 1481e705c121SKalle Valo * don't really have to check the types. 1482e705c121SKalle Valo */ 1483e705c121SKalle Valo 1484e705c121SKalle Valo mutex_lock(&mvm->mutex); 1485e705c121SKalle Valo 1486e705c121SKalle Valo /* make sure that beacon statistics don't go backwards with FW reset */ 1487e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1488e705c121SKalle Valo mvmvif->beacon_stats.accu_num_beacons += 1489e705c121SKalle Valo mvmvif->beacon_stats.num_beacons; 1490e705c121SKalle Valo 1491e705c121SKalle Valo /* Allocate resources for the MAC context, and add it to the fw */ 1492e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1493e705c121SKalle Valo if (ret) 1494e705c121SKalle Valo goto out_unlock; 1495e705c121SKalle Valo 1496698478c4SSara Sharon rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1497698478c4SSara Sharon 1498e705c121SKalle Valo /* Counting number of interfaces is needed for legacy PM */ 1499e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1500e705c121SKalle Valo mvm->vif_count++; 1501e705c121SKalle Valo 1502e705c121SKalle Valo /* 1503e705c121SKalle Valo * The AP binding flow can be done only after the beacon 1504e705c121SKalle Valo * template is configured (which happens only in the mac80211 1505e705c121SKalle Valo * start_ap() flow), and adding the broadcast station can happen 1506e705c121SKalle Valo * only after the binding. 1507e705c121SKalle Valo * In addition, since modifying the MAC before adding a bcast 1508e705c121SKalle Valo * station is not allowed by the FW, delay the adding of MAC context to 1509e705c121SKalle Valo * the point where we can also add the bcast station. 1510e705c121SKalle Valo * In short: there's not much we can do at this point, other than 1511e705c121SKalle Valo * allocating resources :) 1512e705c121SKalle Valo */ 1513e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP || 1514e705c121SKalle Valo vif->type == NL80211_IFTYPE_ADHOC) { 1515e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1516e705c121SKalle Valo if (ret) { 1517e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1518e705c121SKalle Valo goto out_release; 1519e705c121SKalle Valo } 1520e705c121SKalle Valo 152126d6c16bSSara Sharon /* 152226d6c16bSSara Sharon * Only queue for this station is the mcast queue, 152326d6c16bSSara Sharon * which shouldn't be in TFD mask anyway 152426d6c16bSSara Sharon */ 152526d6c16bSSara Sharon ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta, 1526ced19f26SSara Sharon 0, vif->type, 1527ced19f26SSara Sharon IWL_STA_MULTICAST); 152826d6c16bSSara Sharon if (ret) 152926d6c16bSSara Sharon goto out_release; 153026d6c16bSSara Sharon 1531e705c121SKalle Valo iwl_mvm_vif_dbgfs_register(mvm, vif); 1532e705c121SKalle Valo goto out_unlock; 1533e705c121SKalle Valo } 1534e705c121SKalle Valo 1535e705c121SKalle Valo mvmvif->features |= hw->netdev_features; 1536e705c121SKalle Valo 1537e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1538e705c121SKalle Valo if (ret) 1539e705c121SKalle Valo goto out_release; 1540e705c121SKalle Valo 1541e705c121SKalle Valo ret = iwl_mvm_power_update_mac(mvm); 1542e705c121SKalle Valo if (ret) 1543e705c121SKalle Valo goto out_remove_mac; 1544e705c121SKalle Valo 1545e705c121SKalle Valo /* beacon filtering */ 1546e705c121SKalle Valo ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1547e705c121SKalle Valo if (ret) 1548e705c121SKalle Valo goto out_remove_mac; 1549e705c121SKalle Valo 1550e705c121SKalle Valo if (!mvm->bf_allowed_vif && 1551e705c121SKalle Valo vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1552e705c121SKalle Valo mvm->bf_allowed_vif = mvmvif; 1553e705c121SKalle Valo vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1554e705c121SKalle Valo IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1555e705c121SKalle Valo } 1556e705c121SKalle Valo 1557e705c121SKalle Valo /* 1558e705c121SKalle Valo * P2P_DEVICE interface does not have a channel context assigned to it, 1559e705c121SKalle Valo * so a dedicated PHY context is allocated to it and the corresponding 1560e705c121SKalle Valo * MAC context is bound to it at this stage. 1561e705c121SKalle Valo */ 1562e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1563e705c121SKalle Valo 1564e705c121SKalle Valo mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1565e705c121SKalle Valo if (!mvmvif->phy_ctxt) { 1566e705c121SKalle Valo ret = -ENOSPC; 1567e705c121SKalle Valo goto out_free_bf; 1568e705c121SKalle Valo } 1569e705c121SKalle Valo 1570e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 1571e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 1572e705c121SKalle Valo if (ret) 1573e705c121SKalle Valo goto out_unref_phy; 1574e705c121SKalle Valo 1575d197358bSLuca Coelho ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif); 1576e705c121SKalle Valo if (ret) 1577e705c121SKalle Valo goto out_unbind; 1578e705c121SKalle Valo 1579e705c121SKalle Valo /* Save a pointer to p2p device vif, so it can later be used to 1580e705c121SKalle Valo * update the p2p device MAC when a GO is started/stopped */ 1581e705c121SKalle Valo mvm->p2p_device_vif = vif; 1582e705c121SKalle Valo } 1583e705c121SKalle Valo 1584b0ffe455SJohannes Berg iwl_mvm_tcm_add_vif(mvm, vif); 1585b0ffe455SJohannes Berg 1586baf41bc3SShaul Triebitz if (vif->type == NL80211_IFTYPE_MONITOR) 1587baf41bc3SShaul Triebitz mvm->monitor_on = true; 1588baf41bc3SShaul Triebitz 1589e705c121SKalle Valo iwl_mvm_vif_dbgfs_register(mvm, vif); 1590e705c121SKalle Valo goto out_unlock; 1591e705c121SKalle Valo 1592e705c121SKalle Valo out_unbind: 1593e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 1594e705c121SKalle Valo out_unref_phy: 1595e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1596e705c121SKalle Valo out_free_bf: 1597e705c121SKalle Valo if (mvm->bf_allowed_vif == mvmvif) { 1598e705c121SKalle Valo mvm->bf_allowed_vif = NULL; 1599e705c121SKalle Valo vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1600e705c121SKalle Valo IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1601e705c121SKalle Valo } 1602e705c121SKalle Valo out_remove_mac: 1603e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 1604e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 1605e705c121SKalle Valo out_release: 1606e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1607e705c121SKalle Valo mvm->vif_count--; 1608e705c121SKalle Valo out_unlock: 1609e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1610e705c121SKalle Valo 1611e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF); 1612e705c121SKalle Valo 1613e705c121SKalle Valo return ret; 1614e705c121SKalle Valo } 1615e705c121SKalle Valo 1616e705c121SKalle Valo static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1617e705c121SKalle Valo struct ieee80211_vif *vif) 1618e705c121SKalle Valo { 1619e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1620e705c121SKalle Valo /* 1621e705c121SKalle Valo * Flush the ROC worker which will flush the OFFCHANNEL queue. 1622e705c121SKalle Valo * We assume here that all the packets sent to the OFFCHANNEL 1623e705c121SKalle Valo * queue are sent in ROC session. 1624e705c121SKalle Valo */ 1625e705c121SKalle Valo flush_work(&mvm->roc_done_wk); 1626e705c121SKalle Valo } 1627e705c121SKalle Valo } 1628e705c121SKalle Valo 1629e705c121SKalle Valo static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1630e705c121SKalle Valo struct ieee80211_vif *vif) 1631e705c121SKalle Valo { 1632e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1633e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 163486e177d8SGregory Greenman struct iwl_probe_resp_data *probe_data; 1635e705c121SKalle Valo 1636e705c121SKalle Valo iwl_mvm_prepare_mac_removal(mvm, vif); 1637e705c121SKalle Valo 1638b0ffe455SJohannes Berg if (!(vif->type == NL80211_IFTYPE_AP || 1639b0ffe455SJohannes Berg vif->type == NL80211_IFTYPE_ADHOC)) 1640b0ffe455SJohannes Berg iwl_mvm_tcm_rm_vif(mvm, vif); 1641b0ffe455SJohannes Berg 1642e705c121SKalle Valo mutex_lock(&mvm->mutex); 1643e705c121SKalle Valo 164486e177d8SGregory Greenman probe_data = rcu_dereference_protected(mvmvif->probe_resp_data, 164586e177d8SGregory Greenman lockdep_is_held(&mvm->mutex)); 164686e177d8SGregory Greenman RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 164786e177d8SGregory Greenman if (probe_data) 164886e177d8SGregory Greenman kfree_rcu(probe_data, rcu_head); 164986e177d8SGregory Greenman 1650e705c121SKalle Valo if (mvm->bf_allowed_vif == mvmvif) { 1651e705c121SKalle Valo mvm->bf_allowed_vif = NULL; 1652e705c121SKalle Valo vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1653e705c121SKalle Valo IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1654e705c121SKalle Valo } 1655e705c121SKalle Valo 1656e705c121SKalle Valo iwl_mvm_vif_dbgfs_clean(mvm, vif); 1657e705c121SKalle Valo 1658e705c121SKalle Valo /* 1659e705c121SKalle Valo * For AP/GO interface, the tear down of the resources allocated to the 1660e705c121SKalle Valo * interface is be handled as part of the stop_ap flow. 1661e705c121SKalle Valo */ 1662e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP || 1663e705c121SKalle Valo vif->type == NL80211_IFTYPE_ADHOC) { 1664e705c121SKalle Valo #ifdef CONFIG_NL80211_TESTMODE 1665e705c121SKalle Valo if (vif == mvm->noa_vif) { 1666e705c121SKalle Valo mvm->noa_vif = NULL; 1667e705c121SKalle Valo mvm->noa_duration = 0; 1668e705c121SKalle Valo } 1669e705c121SKalle Valo #endif 167026d6c16bSSara Sharon iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta); 1671e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif); 1672e705c121SKalle Valo goto out_release; 1673e705c121SKalle Valo } 1674e705c121SKalle Valo 1675e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1676e705c121SKalle Valo mvm->p2p_device_vif = NULL; 1677d197358bSLuca Coelho iwl_mvm_rm_p2p_bcast_sta(mvm, vif); 1678e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 1679e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1680e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 1681e705c121SKalle Valo } 1682e705c121SKalle Valo 1683e705c121SKalle Valo if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) 1684e705c121SKalle Valo mvm->vif_count--; 1685e705c121SKalle Valo 1686e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 1687e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 1688e705c121SKalle Valo 1689698478c4SSara Sharon RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1690698478c4SSara Sharon 1691baf41bc3SShaul Triebitz if (vif->type == NL80211_IFTYPE_MONITOR) 1692baf41bc3SShaul Triebitz mvm->monitor_on = false; 1693baf41bc3SShaul Triebitz 1694e705c121SKalle Valo out_release: 1695e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1696e705c121SKalle Valo } 1697e705c121SKalle Valo 1698e705c121SKalle Valo static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) 1699e705c121SKalle Valo { 1700e705c121SKalle Valo return 0; 1701e705c121SKalle Valo } 1702e705c121SKalle Valo 1703e705c121SKalle Valo struct iwl_mvm_mc_iter_data { 1704e705c121SKalle Valo struct iwl_mvm *mvm; 1705e705c121SKalle Valo int port_id; 1706e705c121SKalle Valo }; 1707e705c121SKalle Valo 1708e705c121SKalle Valo static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1709e705c121SKalle Valo struct ieee80211_vif *vif) 1710e705c121SKalle Valo { 1711e705c121SKalle Valo struct iwl_mvm_mc_iter_data *data = _data; 1712e705c121SKalle Valo struct iwl_mvm *mvm = data->mvm; 1713e705c121SKalle Valo struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 171497bce57bSLuca Coelho struct iwl_host_cmd hcmd = { 171597bce57bSLuca Coelho .id = MCAST_FILTER_CMD, 171697bce57bSLuca Coelho .flags = CMD_ASYNC, 171797bce57bSLuca Coelho .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 171897bce57bSLuca Coelho }; 1719e705c121SKalle Valo int ret, len; 1720e705c121SKalle Valo 1721e705c121SKalle Valo /* if we don't have free ports, mcast frames will be dropped */ 1722e705c121SKalle Valo if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1723e705c121SKalle Valo return; 1724e705c121SKalle Valo 1725e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || 1726e705c121SKalle Valo !vif->bss_conf.assoc) 1727e705c121SKalle Valo return; 1728e705c121SKalle Valo 1729e705c121SKalle Valo cmd->port_id = data->port_id++; 1730e705c121SKalle Valo memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1731e705c121SKalle Valo len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1732e705c121SKalle Valo 173397bce57bSLuca Coelho hcmd.len[0] = len; 173497bce57bSLuca Coelho hcmd.data[0] = cmd; 173597bce57bSLuca Coelho 173697bce57bSLuca Coelho ret = iwl_mvm_send_cmd(mvm, &hcmd); 1737e705c121SKalle Valo if (ret) 1738e705c121SKalle Valo IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1739e705c121SKalle Valo } 1740e705c121SKalle Valo 1741e705c121SKalle Valo static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1742e705c121SKalle Valo { 1743e705c121SKalle Valo struct iwl_mvm_mc_iter_data iter_data = { 1744e705c121SKalle Valo .mvm = mvm, 1745e705c121SKalle Valo }; 1746e705c121SKalle Valo 1747e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1748e705c121SKalle Valo 1749e705c121SKalle Valo if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1750e705c121SKalle Valo return; 1751e705c121SKalle Valo 1752e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 1753e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1754e705c121SKalle Valo iwl_mvm_mc_iface_iterator, &iter_data); 1755e705c121SKalle Valo } 1756e705c121SKalle Valo 1757e705c121SKalle Valo static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1758e705c121SKalle Valo struct netdev_hw_addr_list *mc_list) 1759e705c121SKalle Valo { 1760e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1761e705c121SKalle Valo struct iwl_mcast_filter_cmd *cmd; 1762e705c121SKalle Valo struct netdev_hw_addr *addr; 1763e705c121SKalle Valo int addr_count; 1764e705c121SKalle Valo bool pass_all; 1765e705c121SKalle Valo int len; 1766e705c121SKalle Valo 1767e705c121SKalle Valo addr_count = netdev_hw_addr_list_count(mc_list); 1768e705c121SKalle Valo pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1769e705c121SKalle Valo IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1770e705c121SKalle Valo if (pass_all) 1771e705c121SKalle Valo addr_count = 0; 1772e705c121SKalle Valo 1773e705c121SKalle Valo len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1774e705c121SKalle Valo cmd = kzalloc(len, GFP_ATOMIC); 1775e705c121SKalle Valo if (!cmd) 1776e705c121SKalle Valo return 0; 1777e705c121SKalle Valo 1778e705c121SKalle Valo if (pass_all) { 1779e705c121SKalle Valo cmd->pass_all = 1; 1780e705c121SKalle Valo return (u64)(unsigned long)cmd; 1781e705c121SKalle Valo } 1782e705c121SKalle Valo 1783e705c121SKalle Valo netdev_hw_addr_list_for_each(addr, mc_list) { 1784e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1785e705c121SKalle Valo cmd->count, addr->addr); 1786e705c121SKalle Valo memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1787e705c121SKalle Valo addr->addr, ETH_ALEN); 1788e705c121SKalle Valo cmd->count++; 1789e705c121SKalle Valo } 1790e705c121SKalle Valo 1791e705c121SKalle Valo return (u64)(unsigned long)cmd; 1792e705c121SKalle Valo } 1793e705c121SKalle Valo 1794e705c121SKalle Valo static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1795e705c121SKalle Valo unsigned int changed_flags, 1796e705c121SKalle Valo unsigned int *total_flags, 1797e705c121SKalle Valo u64 multicast) 1798e705c121SKalle Valo { 1799e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1800e705c121SKalle Valo struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1801e705c121SKalle Valo 1802e705c121SKalle Valo mutex_lock(&mvm->mutex); 1803e705c121SKalle Valo 1804e705c121SKalle Valo /* replace previous configuration */ 1805e705c121SKalle Valo kfree(mvm->mcast_filter_cmd); 1806e705c121SKalle Valo mvm->mcast_filter_cmd = cmd; 1807e705c121SKalle Valo 1808e705c121SKalle Valo if (!cmd) 1809e705c121SKalle Valo goto out; 1810e705c121SKalle Valo 181161e7d91bSLuca Coelho if (changed_flags & FIF_ALLMULTI) 181261e7d91bSLuca Coelho cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 181361e7d91bSLuca Coelho 181461e7d91bSLuca Coelho if (cmd->pass_all) 181561e7d91bSLuca Coelho cmd->count = 0; 181661e7d91bSLuca Coelho 1817e705c121SKalle Valo iwl_mvm_recalc_multicast(mvm); 1818e705c121SKalle Valo out: 1819e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1820e705c121SKalle Valo *total_flags = 0; 1821e705c121SKalle Valo } 1822e705c121SKalle Valo 1823e705c121SKalle Valo static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1824e705c121SKalle Valo struct ieee80211_vif *vif, 1825e705c121SKalle Valo unsigned int filter_flags, 1826e705c121SKalle Valo unsigned int changed_flags) 1827e705c121SKalle Valo { 1828e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1829e705c121SKalle Valo 1830e705c121SKalle Valo /* We support only filter for probe requests */ 1831e705c121SKalle Valo if (!(changed_flags & FIF_PROBE_REQ)) 1832e705c121SKalle Valo return; 1833e705c121SKalle Valo 1834e705c121SKalle Valo /* Supported only for p2p client interfaces */ 1835e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || 1836e705c121SKalle Valo !vif->p2p) 1837e705c121SKalle Valo return; 1838e705c121SKalle Valo 1839e705c121SKalle Valo mutex_lock(&mvm->mutex); 1840e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1841e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1842e705c121SKalle Valo } 1843e705c121SKalle Valo 1844e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1845e705c121SKalle Valo struct iwl_bcast_iter_data { 1846e705c121SKalle Valo struct iwl_mvm *mvm; 1847e705c121SKalle Valo struct iwl_bcast_filter_cmd *cmd; 1848e705c121SKalle Valo u8 current_filter; 1849e705c121SKalle Valo }; 1850e705c121SKalle Valo 1851e705c121SKalle Valo static void 1852e705c121SKalle Valo iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, 1853e705c121SKalle Valo const struct iwl_fw_bcast_filter *in_filter, 1854e705c121SKalle Valo struct iwl_fw_bcast_filter *out_filter) 1855e705c121SKalle Valo { 1856e705c121SKalle Valo struct iwl_fw_bcast_filter_attr *attr; 1857e705c121SKalle Valo int i; 1858e705c121SKalle Valo 1859e705c121SKalle Valo memcpy(out_filter, in_filter, sizeof(*out_filter)); 1860e705c121SKalle Valo 1861e705c121SKalle Valo for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { 1862e705c121SKalle Valo attr = &out_filter->attrs[i]; 1863e705c121SKalle Valo 1864e705c121SKalle Valo if (!attr->mask) 1865e705c121SKalle Valo break; 1866e705c121SKalle Valo 1867e705c121SKalle Valo switch (attr->reserved1) { 1868e705c121SKalle Valo case cpu_to_le16(BC_FILTER_MAGIC_IP): 1869e705c121SKalle Valo if (vif->bss_conf.arp_addr_cnt != 1) { 1870e705c121SKalle Valo attr->mask = 0; 1871e705c121SKalle Valo continue; 1872e705c121SKalle Valo } 1873e705c121SKalle Valo 1874e705c121SKalle Valo attr->val = vif->bss_conf.arp_addr_list[0]; 1875e705c121SKalle Valo break; 1876e705c121SKalle Valo case cpu_to_le16(BC_FILTER_MAGIC_MAC): 1877e705c121SKalle Valo attr->val = *(__be32 *)&vif->addr[2]; 1878e705c121SKalle Valo break; 1879e705c121SKalle Valo default: 1880e705c121SKalle Valo break; 1881e705c121SKalle Valo } 1882e705c121SKalle Valo attr->reserved1 = 0; 1883e705c121SKalle Valo out_filter->num_attrs++; 1884e705c121SKalle Valo } 1885e705c121SKalle Valo } 1886e705c121SKalle Valo 1887e705c121SKalle Valo static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, 1888e705c121SKalle Valo struct ieee80211_vif *vif) 1889e705c121SKalle Valo { 1890e705c121SKalle Valo struct iwl_bcast_iter_data *data = _data; 1891e705c121SKalle Valo struct iwl_mvm *mvm = data->mvm; 1892e705c121SKalle Valo struct iwl_bcast_filter_cmd *cmd = data->cmd; 1893e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1894e705c121SKalle Valo struct iwl_fw_bcast_mac *bcast_mac; 1895e705c121SKalle Valo int i; 1896e705c121SKalle Valo 1897e705c121SKalle Valo if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) 1898e705c121SKalle Valo return; 1899e705c121SKalle Valo 1900e705c121SKalle Valo bcast_mac = &cmd->macs[mvmvif->id]; 1901e705c121SKalle Valo 1902e705c121SKalle Valo /* 1903e705c121SKalle Valo * enable filtering only for associated stations, but not for P2P 1904e705c121SKalle Valo * Clients 1905e705c121SKalle Valo */ 1906e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || 1907e705c121SKalle Valo !vif->bss_conf.assoc) 1908e705c121SKalle Valo return; 1909e705c121SKalle Valo 1910e705c121SKalle Valo bcast_mac->default_discard = 1; 1911e705c121SKalle Valo 1912e705c121SKalle Valo /* copy all configured filters */ 1913e705c121SKalle Valo for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { 1914e705c121SKalle Valo /* 1915e705c121SKalle Valo * Make sure we don't exceed our filters limit. 1916e705c121SKalle Valo * if there is still a valid filter to be configured, 1917e705c121SKalle Valo * be on the safe side and just allow bcast for this mac. 1918e705c121SKalle Valo */ 1919e705c121SKalle Valo if (WARN_ON_ONCE(data->current_filter >= 1920e705c121SKalle Valo ARRAY_SIZE(cmd->filters))) { 1921e705c121SKalle Valo bcast_mac->default_discard = 0; 1922e705c121SKalle Valo bcast_mac->attached_filters = 0; 1923e705c121SKalle Valo break; 1924e705c121SKalle Valo } 1925e705c121SKalle Valo 1926e705c121SKalle Valo iwl_mvm_set_bcast_filter(vif, 1927e705c121SKalle Valo &mvm->bcast_filters[i], 1928e705c121SKalle Valo &cmd->filters[data->current_filter]); 1929e705c121SKalle Valo 1930e705c121SKalle Valo /* skip current filter if it contains no attributes */ 1931e705c121SKalle Valo if (!cmd->filters[data->current_filter].num_attrs) 1932e705c121SKalle Valo continue; 1933e705c121SKalle Valo 1934e705c121SKalle Valo /* attach the filter to current mac */ 1935e705c121SKalle Valo bcast_mac->attached_filters |= 1936e705c121SKalle Valo cpu_to_le16(BIT(data->current_filter)); 1937e705c121SKalle Valo 1938e705c121SKalle Valo data->current_filter++; 1939e705c121SKalle Valo } 1940e705c121SKalle Valo } 1941e705c121SKalle Valo 1942e705c121SKalle Valo bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, 1943e705c121SKalle Valo struct iwl_bcast_filter_cmd *cmd) 1944e705c121SKalle Valo { 1945e705c121SKalle Valo struct iwl_bcast_iter_data iter_data = { 1946e705c121SKalle Valo .mvm = mvm, 1947e705c121SKalle Valo .cmd = cmd, 1948e705c121SKalle Valo }; 1949e705c121SKalle Valo 1950e705c121SKalle Valo if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) 1951e705c121SKalle Valo return false; 1952e705c121SKalle Valo 1953e705c121SKalle Valo memset(cmd, 0, sizeof(*cmd)); 1954e705c121SKalle Valo cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); 1955e705c121SKalle Valo cmd->max_macs = ARRAY_SIZE(cmd->macs); 1956e705c121SKalle Valo 1957e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_DEBUGFS 1958e705c121SKalle Valo /* use debugfs filters/macs if override is configured */ 1959e705c121SKalle Valo if (mvm->dbgfs_bcast_filtering.override) { 1960e705c121SKalle Valo memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, 1961e705c121SKalle Valo sizeof(cmd->filters)); 1962e705c121SKalle Valo memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, 1963e705c121SKalle Valo sizeof(cmd->macs)); 1964e705c121SKalle Valo return true; 1965e705c121SKalle Valo } 1966e705c121SKalle Valo #endif 1967e705c121SKalle Valo 1968e705c121SKalle Valo /* if no filters are configured, do nothing */ 1969e705c121SKalle Valo if (!mvm->bcast_filters) 1970e705c121SKalle Valo return false; 1971e705c121SKalle Valo 1972e705c121SKalle Valo /* configure and attach these filters for each associated sta vif */ 1973e705c121SKalle Valo ieee80211_iterate_active_interfaces( 1974e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1975e705c121SKalle Valo iwl_mvm_bcast_filter_iterator, &iter_data); 1976e705c121SKalle Valo 1977e705c121SKalle Valo return true; 1978e705c121SKalle Valo } 197934672bb3SEliad Peller 198034672bb3SEliad Peller static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1981e705c121SKalle Valo { 1982e705c121SKalle Valo struct iwl_bcast_filter_cmd cmd; 1983e705c121SKalle Valo 1984e705c121SKalle Valo if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) 1985e705c121SKalle Valo return 0; 1986e705c121SKalle Valo 1987e705c121SKalle Valo if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1988e705c121SKalle Valo return 0; 1989e705c121SKalle Valo 1990e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1991e705c121SKalle Valo sizeof(cmd), &cmd); 1992e705c121SKalle Valo } 1993e705c121SKalle Valo #else 199434672bb3SEliad Peller static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1995e705c121SKalle Valo { 1996e705c121SKalle Valo return 0; 1997e705c121SKalle Valo } 1998e705c121SKalle Valo #endif 1999e705c121SKalle Valo 2000a07a8f37SSara Sharon static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, 2001a07a8f37SSara Sharon struct ieee80211_vif *vif) 2002a07a8f37SSara Sharon { 2003a07a8f37SSara Sharon struct iwl_mu_group_mgmt_cmd cmd = {}; 2004a07a8f37SSara Sharon 2005a07a8f37SSara Sharon memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 2006a07a8f37SSara Sharon WLAN_MEMBERSHIP_LEN); 2007a07a8f37SSara Sharon memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 2008a07a8f37SSara Sharon WLAN_USER_POSITION_LEN); 2009a07a8f37SSara Sharon 2010a07a8f37SSara Sharon return iwl_mvm_send_cmd_pdu(mvm, 2011a07a8f37SSara Sharon WIDE_ID(DATA_PATH_GROUP, 2012a07a8f37SSara Sharon UPDATE_MU_GROUPS_CMD), 2013a07a8f37SSara Sharon 0, sizeof(cmd), &cmd); 2014a07a8f37SSara Sharon } 2015a07a8f37SSara Sharon 2016f92659a1SSara Sharon static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 2017f92659a1SSara Sharon struct ieee80211_vif *vif) 2018f92659a1SSara Sharon { 2019f92659a1SSara Sharon if (vif->mu_mimo_owner) { 2020f92659a1SSara Sharon struct iwl_mu_group_mgmt_notif *notif = _data; 2021f92659a1SSara Sharon 2022f92659a1SSara Sharon /* 2023f92659a1SSara Sharon * MU-MIMO Group Id action frame is little endian. We treat 2024f92659a1SSara Sharon * the data received from firmware as if it came from the 2025f92659a1SSara Sharon * action frame, so no conversion is needed. 2026f92659a1SSara Sharon */ 2027f92659a1SSara Sharon ieee80211_update_mu_groups(vif, 2028f92659a1SSara Sharon (u8 *)¬if->membership_status, 2029f92659a1SSara Sharon (u8 *)¬if->user_position); 2030f92659a1SSara Sharon } 2031f92659a1SSara Sharon } 2032f92659a1SSara Sharon 2033f92659a1SSara Sharon void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 2034f92659a1SSara Sharon struct iwl_rx_cmd_buffer *rxb) 2035f92659a1SSara Sharon { 2036f92659a1SSara Sharon struct iwl_rx_packet *pkt = rxb_addr(rxb); 2037f92659a1SSara Sharon struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 2038f92659a1SSara Sharon 2039f92659a1SSara Sharon ieee80211_iterate_active_interfaces_atomic( 2040f92659a1SSara Sharon mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2041f92659a1SSara Sharon iwl_mvm_mu_mimo_iface_iterator, notif); 2042f92659a1SSara Sharon } 2043f92659a1SSara Sharon 2044514c3069SLuca Coelho static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 2045514c3069SLuca Coelho { 2046514c3069SLuca Coelho u8 byte_num = ppe_pos_bit / 8; 2047514c3069SLuca Coelho u8 bit_num = ppe_pos_bit % 8; 2048514c3069SLuca Coelho u8 residue_bits; 2049514c3069SLuca Coelho u8 res; 2050514c3069SLuca Coelho 2051514c3069SLuca Coelho if (bit_num <= 5) 2052514c3069SLuca Coelho return (ppe[byte_num] >> bit_num) & 2053514c3069SLuca Coelho (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2054514c3069SLuca Coelho 2055514c3069SLuca Coelho /* 2056514c3069SLuca Coelho * If bit_num > 5, we have to combine bits with next byte. 2057514c3069SLuca Coelho * Calculate how many bits we need to take from current byte (called 2058514c3069SLuca Coelho * here "residue_bits"), and add them to bits from next byte. 2059514c3069SLuca Coelho */ 2060514c3069SLuca Coelho 2061514c3069SLuca Coelho residue_bits = 8 - bit_num; 2062514c3069SLuca Coelho 2063514c3069SLuca Coelho res = (ppe[byte_num + 1] & 2064514c3069SLuca Coelho (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2065514c3069SLuca Coelho residue_bits; 2066514c3069SLuca Coelho res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2067514c3069SLuca Coelho 2068514c3069SLuca Coelho return res; 2069514c3069SLuca Coelho } 2070514c3069SLuca Coelho 2071514c3069SLuca Coelho static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2072514c3069SLuca Coelho struct ieee80211_vif *vif, u8 sta_id) 2073514c3069SLuca Coelho { 2074514c3069SLuca Coelho struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2075514c3069SLuca Coelho struct iwl_he_sta_context_cmd sta_ctxt_cmd = { 2076514c3069SLuca Coelho .sta_id = sta_id, 2077514c3069SLuca Coelho .tid_limit = IWL_MAX_TID_COUNT, 2078514c3069SLuca Coelho .bss_color = vif->bss_conf.bss_color, 2079514c3069SLuca Coelho .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2080514c3069SLuca Coelho .frame_time_rts_th = 2081514c3069SLuca Coelho cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2082514c3069SLuca Coelho }; 2083514c3069SLuca Coelho struct ieee80211_sta *sta; 2084514c3069SLuca Coelho u32 flags; 2085514c3069SLuca Coelho int i; 2086514c3069SLuca Coelho 2087514c3069SLuca Coelho rcu_read_lock(); 2088514c3069SLuca Coelho 2089514c3069SLuca Coelho sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2090514c3069SLuca Coelho if (IS_ERR(sta)) { 2091514c3069SLuca Coelho rcu_read_unlock(); 2092514c3069SLuca Coelho WARN(1, "Can't find STA to configure HE\n"); 2093514c3069SLuca Coelho return; 2094514c3069SLuca Coelho } 2095514c3069SLuca Coelho 2096514c3069SLuca Coelho if (!sta->he_cap.has_he) { 2097514c3069SLuca Coelho rcu_read_unlock(); 2098514c3069SLuca Coelho return; 2099514c3069SLuca Coelho } 2100514c3069SLuca Coelho 2101514c3069SLuca Coelho flags = 0; 2102514c3069SLuca Coelho 2103514c3069SLuca Coelho /* HTC flags */ 2104514c3069SLuca Coelho if (sta->he_cap.he_cap_elem.mac_cap_info[0] & 2105514c3069SLuca Coelho IEEE80211_HE_MAC_CAP0_HTC_HE) 2106514c3069SLuca Coelho sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2107514c3069SLuca Coelho if ((sta->he_cap.he_cap_elem.mac_cap_info[1] & 2108514c3069SLuca Coelho IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2109514c3069SLuca Coelho (sta->he_cap.he_cap_elem.mac_cap_info[2] & 2110514c3069SLuca Coelho IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2111514c3069SLuca Coelho u8 link_adap = 2112514c3069SLuca Coelho ((sta->he_cap.he_cap_elem.mac_cap_info[2] & 2113514c3069SLuca Coelho IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2114514c3069SLuca Coelho (sta->he_cap.he_cap_elem.mac_cap_info[1] & 2115514c3069SLuca Coelho IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2116514c3069SLuca Coelho 2117514c3069SLuca Coelho if (link_adap == 2) 2118514c3069SLuca Coelho sta_ctxt_cmd.htc_flags |= 2119514c3069SLuca Coelho cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2120514c3069SLuca Coelho else if (link_adap == 3) 2121514c3069SLuca Coelho sta_ctxt_cmd.htc_flags |= 2122514c3069SLuca Coelho cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2123514c3069SLuca Coelho } 2124514c3069SLuca Coelho if (sta->he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2125514c3069SLuca Coelho sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2126514c3069SLuca Coelho if (sta->he_cap.he_cap_elem.mac_cap_info[3] & 2127514c3069SLuca Coelho IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2128514c3069SLuca Coelho sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2129514c3069SLuca Coelho if (sta->he_cap.he_cap_elem.mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2130514c3069SLuca Coelho sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2131514c3069SLuca Coelho 2132189b8d44SNaftali Goldstein /* 2133189b8d44SNaftali Goldstein * Initialize the PPE thresholds to "None" (7), as described in Table 2134189b8d44SNaftali Goldstein * 9-262ac of 80211.ax/D3.0. 2135189b8d44SNaftali Goldstein */ 2136189b8d44SNaftali Goldstein memset(&sta_ctxt_cmd.pkt_ext, 7, sizeof(sta_ctxt_cmd.pkt_ext)); 2137189b8d44SNaftali Goldstein 2138189b8d44SNaftali Goldstein /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2139514c3069SLuca Coelho if (sta->he_cap.he_cap_elem.phy_cap_info[6] & 2140514c3069SLuca Coelho IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2141514c3069SLuca Coelho u8 nss = (sta->he_cap.ppe_thres[0] & 2142514c3069SLuca Coelho IEEE80211_PPE_THRES_NSS_MASK) + 1; 2143514c3069SLuca Coelho u8 ru_index_bitmap = 2144514c3069SLuca Coelho (sta->he_cap.ppe_thres[0] & 2145514c3069SLuca Coelho IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK) >> 2146514c3069SLuca Coelho IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS; 2147514c3069SLuca Coelho u8 *ppe = &sta->he_cap.ppe_thres[0]; 2148514c3069SLuca Coelho u8 ppe_pos_bit = 7; /* Starting after PPE header */ 2149514c3069SLuca Coelho 2150514c3069SLuca Coelho /* 2151514c3069SLuca Coelho * FW currently supports only nss == MAX_HE_SUPP_NSS 2152514c3069SLuca Coelho * 2153514c3069SLuca Coelho * If nss > MAX: we can ignore values we don't support 2154514c3069SLuca Coelho * If nss < MAX: we can set zeros in other streams 2155514c3069SLuca Coelho */ 2156514c3069SLuca Coelho if (nss > MAX_HE_SUPP_NSS) { 2157514c3069SLuca Coelho IWL_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2158514c3069SLuca Coelho MAX_HE_SUPP_NSS); 2159514c3069SLuca Coelho nss = MAX_HE_SUPP_NSS; 2160514c3069SLuca Coelho } 2161514c3069SLuca Coelho 2162514c3069SLuca Coelho for (i = 0; i < nss; i++) { 2163514c3069SLuca Coelho u8 ru_index_tmp = ru_index_bitmap << 1; 2164514c3069SLuca Coelho u8 bw; 2165514c3069SLuca Coelho 2166514c3069SLuca Coelho for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX; bw++) { 2167514c3069SLuca Coelho ru_index_tmp >>= 1; 2168514c3069SLuca Coelho if (!(ru_index_tmp & 1)) 2169514c3069SLuca Coelho continue; 2170514c3069SLuca Coelho 2171514c3069SLuca Coelho sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][1] = 2172514c3069SLuca Coelho iwl_mvm_he_get_ppe_val(ppe, 2173514c3069SLuca Coelho ppe_pos_bit); 2174514c3069SLuca Coelho ppe_pos_bit += 2175514c3069SLuca Coelho IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2176514c3069SLuca Coelho sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][0] = 2177514c3069SLuca Coelho iwl_mvm_he_get_ppe_val(ppe, 2178514c3069SLuca Coelho ppe_pos_bit); 2179514c3069SLuca Coelho ppe_pos_bit += 2180514c3069SLuca Coelho IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2181514c3069SLuca Coelho } 2182514c3069SLuca Coelho } 2183514c3069SLuca Coelho 2184514c3069SLuca Coelho flags |= STA_CTXT_HE_PACKET_EXT; 2185514c3069SLuca Coelho } 2186514c3069SLuca Coelho rcu_read_unlock(); 2187514c3069SLuca Coelho 2188514c3069SLuca Coelho /* Mark MU EDCA as enabled, unless none detected on some AC */ 2189514c3069SLuca Coelho flags |= STA_CTXT_HE_MU_EDCA_CW; 2190514c3069SLuca Coelho for (i = 0; i < AC_NUM; i++) { 2191514c3069SLuca Coelho struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2192514c3069SLuca Coelho &mvmvif->queue_params[i].mu_edca_param_rec; 2193514c3069SLuca Coelho 2194514c3069SLuca Coelho if (!mvmvif->queue_params[i].mu_edca) { 2195514c3069SLuca Coelho flags &= ~STA_CTXT_HE_MU_EDCA_CW; 2196514c3069SLuca Coelho break; 2197514c3069SLuca Coelho } 2198514c3069SLuca Coelho 2199514c3069SLuca Coelho sta_ctxt_cmd.trig_based_txf[i].cwmin = 2200514c3069SLuca Coelho cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2201514c3069SLuca Coelho sta_ctxt_cmd.trig_based_txf[i].cwmax = 2202514c3069SLuca Coelho cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2203514c3069SLuca Coelho sta_ctxt_cmd.trig_based_txf[i].aifsn = 2204514c3069SLuca Coelho cpu_to_le16(mu_edca->aifsn); 2205514c3069SLuca Coelho sta_ctxt_cmd.trig_based_txf[i].mu_time = 2206514c3069SLuca Coelho cpu_to_le16(mu_edca->mu_edca_timer); 2207514c3069SLuca Coelho } 2208514c3069SLuca Coelho 2209514c3069SLuca Coelho if (vif->bss_conf.multi_sta_back_32bit) 2210514c3069SLuca Coelho flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2211514c3069SLuca Coelho 2212514c3069SLuca Coelho if (vif->bss_conf.ack_enabled) 2213514c3069SLuca Coelho flags |= STA_CTXT_HE_ACK_ENABLED; 2214514c3069SLuca Coelho 2215514c3069SLuca Coelho if (vif->bss_conf.uora_exists) { 2216514c3069SLuca Coelho flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2217514c3069SLuca Coelho 2218514c3069SLuca Coelho sta_ctxt_cmd.rand_alloc_ecwmin = 2219514c3069SLuca Coelho vif->bss_conf.uora_ocw_range & 0x7; 2220514c3069SLuca Coelho sta_ctxt_cmd.rand_alloc_ecwmax = 2221514c3069SLuca Coelho (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2222514c3069SLuca Coelho } 2223514c3069SLuca Coelho 2224514c3069SLuca Coelho /* TODO: support Multi BSSID IE */ 2225514c3069SLuca Coelho 2226514c3069SLuca Coelho sta_ctxt_cmd.flags = cpu_to_le32(flags); 2227514c3069SLuca Coelho 2228514c3069SLuca Coelho if (iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(STA_HE_CTXT_CMD, 2229514c3069SLuca Coelho DATA_PATH_GROUP, 0), 2230514c3069SLuca Coelho 0, sizeof(sta_ctxt_cmd), &sta_ctxt_cmd)) 2231514c3069SLuca Coelho IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2232514c3069SLuca Coelho } 2233514c3069SLuca Coelho 2234e705c121SKalle Valo static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2235e705c121SKalle Valo struct ieee80211_vif *vif, 2236e705c121SKalle Valo struct ieee80211_bss_conf *bss_conf, 2237e705c121SKalle Valo u32 changes) 2238e705c121SKalle Valo { 2239e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2240e705c121SKalle Valo int ret; 2241e705c121SKalle Valo 2242e705c121SKalle Valo /* 2243e705c121SKalle Valo * Re-calculate the tsf id, as the master-slave relations depend on the 2244e705c121SKalle Valo * beacon interval, which was not known when the station interface was 2245e705c121SKalle Valo * added. 2246e705c121SKalle Valo */ 2247514c3069SLuca Coelho if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) { 2248230ba6c5SLuca Coelho if (vif->bss_conf.he_support && 2249230ba6c5SLuca Coelho !iwlwifi_mod_params.disable_11ax) 2250514c3069SLuca Coelho iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2251514c3069SLuca Coelho 2252e705c121SKalle Valo iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2253514c3069SLuca Coelho } 2254e705c121SKalle Valo 225540ecdd01SShaul Triebitz /* Update MU EDCA params */ 225640ecdd01SShaul Triebitz if (changes & BSS_CHANGED_QOS && mvmvif->associated && 225740ecdd01SShaul Triebitz bss_conf->assoc && vif->bss_conf.he_support && 225840ecdd01SShaul Triebitz !iwlwifi_mod_params.disable_11ax) 225940ecdd01SShaul Triebitz iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 226040ecdd01SShaul Triebitz 2261e705c121SKalle Valo /* 2262e705c121SKalle Valo * If we're not associated yet, take the (new) BSSID before associating 2263e705c121SKalle Valo * so the firmware knows. If we're already associated, then use the old 2264e705c121SKalle Valo * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2265e705c121SKalle Valo * branch for disassociation below. 2266e705c121SKalle Valo */ 2267e705c121SKalle Valo if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2268e705c121SKalle Valo memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2269e705c121SKalle Valo 2270e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); 2271e705c121SKalle Valo if (ret) 2272e705c121SKalle Valo IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2273e705c121SKalle Valo 2274e705c121SKalle Valo /* after sending it once, adopt mac80211 data */ 2275e705c121SKalle Valo memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2276e705c121SKalle Valo mvmvif->associated = bss_conf->assoc; 2277e705c121SKalle Valo 2278e705c121SKalle Valo if (changes & BSS_CHANGED_ASSOC) { 2279e705c121SKalle Valo if (bss_conf->assoc) { 2280e705c121SKalle Valo /* clear statistics to get clean beacon counter */ 2281e705c121SKalle Valo iwl_mvm_request_statistics(mvm, true); 2282e705c121SKalle Valo memset(&mvmvif->beacon_stats, 0, 2283e705c121SKalle Valo sizeof(mvmvif->beacon_stats)); 2284e705c121SKalle Valo 2285e705c121SKalle Valo /* add quota for this interface */ 2286e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, true, NULL); 2287e705c121SKalle Valo if (ret) { 2288e705c121SKalle Valo IWL_ERR(mvm, "failed to update quotas\n"); 2289e705c121SKalle Valo return; 2290e705c121SKalle Valo } 2291e705c121SKalle Valo 2292e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2293e705c121SKalle Valo &mvm->status)) { 2294e705c121SKalle Valo /* 2295e705c121SKalle Valo * If we're restarting then the firmware will 2296e705c121SKalle Valo * obviously have lost synchronisation with 2297e705c121SKalle Valo * the AP. It will attempt to synchronise by 2298e705c121SKalle Valo * itself, but we can make it more reliable by 2299e705c121SKalle Valo * scheduling a session protection time event. 2300e705c121SKalle Valo * 2301e705c121SKalle Valo * The firmware needs to receive a beacon to 2302e705c121SKalle Valo * catch up with synchronisation, use 110% of 2303e705c121SKalle Valo * the beacon interval. 2304e705c121SKalle Valo * 2305e705c121SKalle Valo * Set a large maximum delay to allow for more 2306e705c121SKalle Valo * than a single interface. 2307e705c121SKalle Valo */ 2308e705c121SKalle Valo u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2309e705c121SKalle Valo iwl_mvm_protect_session(mvm, vif, dur, dur, 2310e705c121SKalle Valo 5 * dur, false); 2311e705c121SKalle Valo } 2312e705c121SKalle Valo 2313e705c121SKalle Valo iwl_mvm_sf_update(mvm, vif, false); 2314e705c121SKalle Valo iwl_mvm_power_vif_assoc(mvm, vif); 2315e705c121SKalle Valo if (vif->p2p) { 2316e705c121SKalle Valo iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT); 2317e705c121SKalle Valo iwl_mvm_update_smps(mvm, vif, 2318e705c121SKalle Valo IWL_MVM_SMPS_REQ_PROT, 2319e705c121SKalle Valo IEEE80211_SMPS_DYNAMIC); 2320e705c121SKalle Valo } 23210ae98812SSara Sharon } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 2322e705c121SKalle Valo /* 2323e705c121SKalle Valo * If update fails - SF might be running in associated 2324e705c121SKalle Valo * mode while disassociated - which is forbidden. 2325e705c121SKalle Valo */ 2326e705c121SKalle Valo WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false), 2327e705c121SKalle Valo "Failed to update SF upon disassociation\n"); 2328e705c121SKalle Valo 23296b28f978SEmmanuel Grumbach /* 23306b28f978SEmmanuel Grumbach * If we get an assert during the connection (after the 23316b28f978SEmmanuel Grumbach * station has been added, but before the vif is set 23326b28f978SEmmanuel Grumbach * to associated), mac80211 will re-add the station and 23336b28f978SEmmanuel Grumbach * then configure the vif. Since the vif is not 23346b28f978SEmmanuel Grumbach * associated, we would remove the station here and 23356b28f978SEmmanuel Grumbach * this would fail the recovery. 23366b28f978SEmmanuel Grumbach */ 23376b28f978SEmmanuel Grumbach if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 23386b28f978SEmmanuel Grumbach &mvm->status)) { 23396b28f978SEmmanuel Grumbach /* 23406b28f978SEmmanuel Grumbach * Remove AP station now that 23416b28f978SEmmanuel Grumbach * the MAC is unassoc 23426b28f978SEmmanuel Grumbach */ 23436b28f978SEmmanuel Grumbach ret = iwl_mvm_rm_sta_id(mvm, vif, 23446b28f978SEmmanuel Grumbach mvmvif->ap_sta_id); 2345e705c121SKalle Valo if (ret) 23466b28f978SEmmanuel Grumbach IWL_ERR(mvm, 23476b28f978SEmmanuel Grumbach "failed to remove AP station\n"); 2348e705c121SKalle Valo 2349e705c121SKalle Valo if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) 23506b28f978SEmmanuel Grumbach mvm->d0i3_ap_sta_id = 23516b28f978SEmmanuel Grumbach IWL_MVM_INVALID_STA; 23520ae98812SSara Sharon mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 23536b28f978SEmmanuel Grumbach } 23546b28f978SEmmanuel Grumbach 2355e705c121SKalle Valo /* remove quota for this interface */ 2356e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, false, NULL); 2357e705c121SKalle Valo if (ret) 2358e705c121SKalle Valo IWL_ERR(mvm, "failed to update quotas\n"); 2359e705c121SKalle Valo 2360e705c121SKalle Valo if (vif->p2p) 2361e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT); 2362e705c121SKalle Valo 2363e705c121SKalle Valo /* this will take the cleared BSSID from bss_conf */ 2364e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2365e705c121SKalle Valo if (ret) 2366e705c121SKalle Valo IWL_ERR(mvm, 2367e705c121SKalle Valo "failed to update MAC %pM (clear after unassoc)\n", 2368e705c121SKalle Valo vif->addr); 2369e705c121SKalle Valo } 2370e705c121SKalle Valo 2371a07a8f37SSara Sharon /* 2372a07a8f37SSara Sharon * The firmware tracks the MU-MIMO group on its own. 2373f92659a1SSara Sharon * However, on HW restart we should restore this data. 2374a07a8f37SSara Sharon */ 2375a07a8f37SSara Sharon if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2376f92659a1SSara Sharon (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) { 2377a07a8f37SSara Sharon ret = iwl_mvm_update_mu_groups(mvm, vif); 2378a07a8f37SSara Sharon if (ret) 2379a07a8f37SSara Sharon IWL_ERR(mvm, 2380a07a8f37SSara Sharon "failed to update VHT MU_MIMO groups\n"); 2381a07a8f37SSara Sharon } 2382a07a8f37SSara Sharon 2383e705c121SKalle Valo iwl_mvm_recalc_multicast(mvm); 238434672bb3SEliad Peller iwl_mvm_configure_bcast_filter(mvm); 2385e705c121SKalle Valo 2386e705c121SKalle Valo /* reset rssi values */ 2387e705c121SKalle Valo mvmvif->bf_data.ave_beacon_signal = 0; 2388e705c121SKalle Valo 2389e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 2390e705c121SKalle Valo iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2391e705c121SKalle Valo IEEE80211_SMPS_AUTOMATIC); 2392355346baSAvraham Stern if (fw_has_capa(&mvm->fw->ucode_capa, 2393355346baSAvraham Stern IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2394355346baSAvraham Stern iwl_mvm_config_scan(mvm); 2395b45242c9SAvraham Stern } 2396b45242c9SAvraham Stern 2397b45242c9SAvraham Stern if (changes & BSS_CHANGED_BEACON_INFO) { 2398e705c121SKalle Valo /* 2399b45242c9SAvraham Stern * We received a beacon from the associated AP so 2400e705c121SKalle Valo * remove the session protection. 2401e705c121SKalle Valo */ 24023edfb5f4SAvraham Stern iwl_mvm_stop_session_protection(mvm, vif); 2403e705c121SKalle Valo 2404e705c121SKalle Valo iwl_mvm_sf_update(mvm, vif, false); 2405e705c121SKalle Valo WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2406e705c121SKalle Valo } 2407e705c121SKalle Valo 2408283115fbSAvri Altman if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2409283115fbSAvri Altman /* 2410283115fbSAvri Altman * Send power command on every beacon change, 2411283115fbSAvri Altman * because we may have not enabled beacon abort yet. 2412283115fbSAvri Altman */ 2413283115fbSAvri Altman BSS_CHANGED_BEACON_INFO)) { 2414e705c121SKalle Valo ret = iwl_mvm_power_update_mac(mvm); 2415e705c121SKalle Valo if (ret) 2416e705c121SKalle Valo IWL_ERR(mvm, "failed to update power mode\n"); 2417e705c121SKalle Valo } 2418e705c121SKalle Valo 2419e705c121SKalle Valo if (changes & BSS_CHANGED_TXPOWER) { 2420e705c121SKalle Valo IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 2421e705c121SKalle Valo bss_conf->txpower); 2422e705c121SKalle Valo iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2423e705c121SKalle Valo } 2424e705c121SKalle Valo 2425e705c121SKalle Valo if (changes & BSS_CHANGED_CQM) { 2426e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2427e705c121SKalle Valo /* reset cqm events tracking */ 2428e705c121SKalle Valo mvmvif->bf_data.last_cqm_event = 0; 2429e705c121SKalle Valo if (mvmvif->bf_data.bf_enabled) { 2430e705c121SKalle Valo ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2431e705c121SKalle Valo if (ret) 2432e705c121SKalle Valo IWL_ERR(mvm, 2433e705c121SKalle Valo "failed to update CQM thresholds\n"); 2434e705c121SKalle Valo } 2435e705c121SKalle Valo } 2436e705c121SKalle Valo 2437e705c121SKalle Valo if (changes & BSS_CHANGED_ARP_FILTER) { 2438e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); 243934672bb3SEliad Peller iwl_mvm_configure_bcast_filter(mvm); 2440e705c121SKalle Valo } 2441e705c121SKalle Valo } 2442e705c121SKalle Valo 2443e705c121SKalle Valo static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2444e705c121SKalle Valo struct ieee80211_vif *vif) 2445e705c121SKalle Valo { 2446e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2447e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2448e705c121SKalle Valo int ret; 2449e705c121SKalle Valo 2450e705c121SKalle Valo /* 2451e705c121SKalle Valo * iwl_mvm_mac_ctxt_add() might read directly from the device 2452e705c121SKalle Valo * (the system time), so make sure it is available. 2453e705c121SKalle Valo */ 2454e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP); 2455e705c121SKalle Valo if (ret) 2456e705c121SKalle Valo return ret; 2457e705c121SKalle Valo 2458e705c121SKalle Valo mutex_lock(&mvm->mutex); 2459e705c121SKalle Valo 2460e705c121SKalle Valo /* Send the beacon template */ 2461e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); 2462e705c121SKalle Valo if (ret) 2463e705c121SKalle Valo goto out_unlock; 2464e705c121SKalle Valo 2465e705c121SKalle Valo /* 2466e705c121SKalle Valo * Re-calculate the tsf id, as the master-slave relations depend on the 2467e705c121SKalle Valo * beacon interval, which was not known when the AP interface was added. 2468e705c121SKalle Valo */ 2469e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP) 2470e705c121SKalle Valo iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2471e705c121SKalle Valo 2472e705c121SKalle Valo mvmvif->ap_assoc_sta_count = 0; 2473e705c121SKalle Valo 2474e705c121SKalle Valo /* Add the mac context */ 2475e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2476e705c121SKalle Valo if (ret) 2477e705c121SKalle Valo goto out_unlock; 2478e705c121SKalle Valo 2479e705c121SKalle Valo /* Perform the binding */ 2480e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 2481e705c121SKalle Valo if (ret) 2482e705c121SKalle Valo goto out_remove; 2483e705c121SKalle Valo 248463dd5d02SSara Sharon /* 248563dd5d02SSara Sharon * This is not very nice, but the simplest: 248663dd5d02SSara Sharon * For older FWs adding the mcast sta before the bcast station may 248763dd5d02SSara Sharon * cause assert 0x2b00. 248863dd5d02SSara Sharon * This is fixed in later FW so make the order of removal depend on 248963dd5d02SSara Sharon * the TLV 249063dd5d02SSara Sharon */ 249163dd5d02SSara Sharon if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2492ced19f26SSara Sharon ret = iwl_mvm_add_mcast_sta(mvm, vif); 2493ced19f26SSara Sharon if (ret) 2494ced19f26SSara Sharon goto out_unbind; 249563dd5d02SSara Sharon /* 249663dd5d02SSara Sharon * Send the bcast station. At this stage the TBTT and DTIM time 249763dd5d02SSara Sharon * events are added and applied to the scheduler 249863dd5d02SSara Sharon */ 2499e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 250063dd5d02SSara Sharon if (ret) { 250163dd5d02SSara Sharon iwl_mvm_rm_mcast_sta(mvm, vif); 250263dd5d02SSara Sharon goto out_unbind; 250363dd5d02SSara Sharon } 250463dd5d02SSara Sharon } else { 250563dd5d02SSara Sharon /* 250663dd5d02SSara Sharon * Send the bcast station. At this stage the TBTT and DTIM time 250763dd5d02SSara Sharon * events are added and applied to the scheduler 250863dd5d02SSara Sharon */ 250975fd4fecSJohannes Berg ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2510e705c121SKalle Valo if (ret) 251163dd5d02SSara Sharon goto out_unbind; 251275fd4fecSJohannes Berg ret = iwl_mvm_add_mcast_sta(mvm, vif); 251363dd5d02SSara Sharon if (ret) { 251463dd5d02SSara Sharon iwl_mvm_send_rm_bcast_sta(mvm, vif); 251563dd5d02SSara Sharon goto out_unbind; 251663dd5d02SSara Sharon } 251763dd5d02SSara Sharon } 251826d6c16bSSara Sharon 2519e705c121SKalle Valo /* must be set before quota calculations */ 2520e705c121SKalle Valo mvmvif->ap_ibss_active = true; 2521e705c121SKalle Valo 252247242744STova Mussai if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 252347242744STova Mussai iwl_mvm_vif_set_low_latency(mvmvif, true, 252447242744STova Mussai LOW_LATENCY_VIF_TYPE); 252547242744STova Mussai iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 252647242744STova Mussai } 252747242744STova Mussai 2528e705c121SKalle Valo /* power updated needs to be done before quotas */ 2529e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 2530e705c121SKalle Valo 2531e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, false, NULL); 2532e705c121SKalle Valo if (ret) 2533e705c121SKalle Valo goto out_quota_failed; 2534e705c121SKalle Valo 2535e705c121SKalle Valo /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2536e705c121SKalle Valo if (vif->p2p && mvm->p2p_device_vif) 2537e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2538e705c121SKalle Valo 2539e705c121SKalle Valo iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS); 2540e705c121SKalle Valo 2541e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 2542e705c121SKalle Valo 2543e705c121SKalle Valo /* we don't support TDLS during DCM */ 2544e705c121SKalle Valo if (iwl_mvm_phy_ctx_count(mvm) > 1) 2545e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 2546e705c121SKalle Valo 2547e705c121SKalle Valo goto out_unlock; 2548e705c121SKalle Valo 2549e705c121SKalle Valo out_quota_failed: 2550e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 2551e705c121SKalle Valo mvmvif->ap_ibss_active = false; 2552e705c121SKalle Valo iwl_mvm_send_rm_bcast_sta(mvm, vif); 2553ced19f26SSara Sharon iwl_mvm_rm_mcast_sta(mvm, vif); 2554e705c121SKalle Valo out_unbind: 2555e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 2556e705c121SKalle Valo out_remove: 2557e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 2558e705c121SKalle Valo out_unlock: 2559e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2560e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP); 2561e705c121SKalle Valo return ret; 2562e705c121SKalle Valo } 2563e705c121SKalle Valo 2564e705c121SKalle Valo static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2565e705c121SKalle Valo struct ieee80211_vif *vif) 2566e705c121SKalle Valo { 2567e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2568e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2569e705c121SKalle Valo 2570e705c121SKalle Valo iwl_mvm_prepare_mac_removal(mvm, vif); 2571e705c121SKalle Valo 2572e705c121SKalle Valo mutex_lock(&mvm->mutex); 2573e705c121SKalle Valo 2574e705c121SKalle Valo /* Handle AP stop while in CSA */ 2575e705c121SKalle Valo if (rcu_access_pointer(mvm->csa_vif) == vif) { 2576e705c121SKalle Valo iwl_mvm_remove_time_event(mvm, mvmvif, 2577e705c121SKalle Valo &mvmvif->time_event_data); 2578e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_vif, NULL); 2579e705c121SKalle Valo mvmvif->csa_countdown = false; 2580e705c121SKalle Valo } 2581e705c121SKalle Valo 2582e705c121SKalle Valo if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2583e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2584e705c121SKalle Valo mvm->csa_tx_block_bcn_timeout = 0; 2585e705c121SKalle Valo } 2586e705c121SKalle Valo 2587e705c121SKalle Valo mvmvif->ap_ibss_active = false; 2588e705c121SKalle Valo mvm->ap_last_beacon_gp2 = 0; 2589e705c121SKalle Valo 259047242744STova Mussai if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 259147242744STova Mussai iwl_mvm_vif_set_low_latency(mvmvif, false, 259247242744STova Mussai LOW_LATENCY_VIF_TYPE); 259347242744STova Mussai iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 259447242744STova Mussai } 259547242744STova Mussai 2596e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 2597e705c121SKalle Valo 2598e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS); 2599e705c121SKalle Valo 2600e705c121SKalle Valo /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2601e705c121SKalle Valo if (vif->p2p && mvm->p2p_device_vif) 2602e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2603e705c121SKalle Valo 2604e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, NULL); 2605ced19f26SSara Sharon 2606ced19f26SSara Sharon /* 2607ced19f26SSara Sharon * This is not very nice, but the simplest: 2608ced19f26SSara Sharon * For older FWs removing the mcast sta before the bcast station may 2609ced19f26SSara Sharon * cause assert 0x2b00. 2610ced19f26SSara Sharon * This is fixed in later FW (which will stop beaconing when removing 2611ced19f26SSara Sharon * bcast station). 2612ced19f26SSara Sharon * So make the order of removal depend on the TLV 2613ced19f26SSara Sharon */ 2614ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 261526d6c16bSSara Sharon iwl_mvm_rm_mcast_sta(mvm, vif); 2616e705c121SKalle Valo iwl_mvm_send_rm_bcast_sta(mvm, vif); 2617ced19f26SSara Sharon if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2618ced19f26SSara Sharon iwl_mvm_rm_mcast_sta(mvm, vif); 2619e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 2620e705c121SKalle Valo 2621e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 2622e705c121SKalle Valo 2623e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 2624e705c121SKalle Valo 2625337bfc98SAvraham Stern kfree(mvmvif->ap_wep_key); 2626337bfc98SAvraham Stern mvmvif->ap_wep_key = NULL; 2627337bfc98SAvraham Stern 2628e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2629e705c121SKalle Valo } 2630e705c121SKalle Valo 2631e705c121SKalle Valo static void 2632e705c121SKalle Valo iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 2633e705c121SKalle Valo struct ieee80211_vif *vif, 2634e705c121SKalle Valo struct ieee80211_bss_conf *bss_conf, 2635e705c121SKalle Valo u32 changes) 2636e705c121SKalle Valo { 2637e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2638e705c121SKalle Valo 2639e705c121SKalle Valo /* Changes will be applied when the AP/IBSS is started */ 2640e705c121SKalle Valo if (!mvmvif->ap_ibss_active) 2641e705c121SKalle Valo return; 2642e705c121SKalle Valo 2643e705c121SKalle Valo if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 2644e705c121SKalle Valo BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 2645e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 2646e705c121SKalle Valo IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2647e705c121SKalle Valo 2648e705c121SKalle Valo /* Need to send a new beacon template to the FW */ 2649e705c121SKalle Valo if (changes & BSS_CHANGED_BEACON && 2650e705c121SKalle Valo iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) 2651e705c121SKalle Valo IWL_WARN(mvm, "Failed updating beacon data\n"); 2652e705c121SKalle Valo 2653e705c121SKalle Valo if (changes & BSS_CHANGED_TXPOWER) { 2654e705c121SKalle Valo IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 2655e705c121SKalle Valo bss_conf->txpower); 2656e705c121SKalle Valo iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2657e705c121SKalle Valo } 2658e705c121SKalle Valo } 2659e705c121SKalle Valo 2660e705c121SKalle Valo static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 2661e705c121SKalle Valo struct ieee80211_vif *vif, 2662e705c121SKalle Valo struct ieee80211_bss_conf *bss_conf, 2663e705c121SKalle Valo u32 changes) 2664e705c121SKalle Valo { 2665e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2666e705c121SKalle Valo 2667e705c121SKalle Valo /* 2668e705c121SKalle Valo * iwl_mvm_bss_info_changed_station() might call 2669e705c121SKalle Valo * iwl_mvm_protect_session(), which reads directly from 2670e705c121SKalle Valo * the device (the system time), so make sure it is available. 2671e705c121SKalle Valo */ 2672e705c121SKalle Valo if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED)) 2673e705c121SKalle Valo return; 2674e705c121SKalle Valo 2675e705c121SKalle Valo mutex_lock(&mvm->mutex); 2676e705c121SKalle Valo 2677e705c121SKalle Valo if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) 2678e705c121SKalle Valo iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 2679e705c121SKalle Valo 2680e705c121SKalle Valo switch (vif->type) { 2681e705c121SKalle Valo case NL80211_IFTYPE_STATION: 2682e705c121SKalle Valo iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 2683e705c121SKalle Valo break; 2684e705c121SKalle Valo case NL80211_IFTYPE_AP: 2685e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 2686e705c121SKalle Valo iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 2687e705c121SKalle Valo break; 268891b08c2dSAviya Erenfeld case NL80211_IFTYPE_MONITOR: 268991b08c2dSAviya Erenfeld if (changes & BSS_CHANGED_MU_GROUPS) 269091b08c2dSAviya Erenfeld iwl_mvm_update_mu_groups(mvm, vif); 269191b08c2dSAviya Erenfeld break; 2692e705c121SKalle Valo default: 2693e705c121SKalle Valo /* shouldn't happen */ 2694e705c121SKalle Valo WARN_ON_ONCE(1); 2695e705c121SKalle Valo } 2696e705c121SKalle Valo 2697e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2698e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED); 2699e705c121SKalle Valo } 2700e705c121SKalle Valo 2701e705c121SKalle Valo static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, 2702e705c121SKalle Valo struct ieee80211_vif *vif, 2703e705c121SKalle Valo struct ieee80211_scan_request *hw_req) 2704e705c121SKalle Valo { 2705e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2706e705c121SKalle Valo int ret; 2707e705c121SKalle Valo 2708e705c121SKalle Valo if (hw_req->req.n_channels == 0 || 2709e705c121SKalle Valo hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 2710e705c121SKalle Valo return -EINVAL; 2711e705c121SKalle Valo 2712e705c121SKalle Valo mutex_lock(&mvm->mutex); 2713e705c121SKalle Valo ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 2714e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2715e705c121SKalle Valo 2716e705c121SKalle Valo return ret; 2717e705c121SKalle Valo } 2718e705c121SKalle Valo 2719e705c121SKalle Valo static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 2720e705c121SKalle Valo struct ieee80211_vif *vif) 2721e705c121SKalle Valo { 2722e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2723e705c121SKalle Valo 2724e705c121SKalle Valo mutex_lock(&mvm->mutex); 2725e705c121SKalle Valo 2726e705c121SKalle Valo /* Due to a race condition, it's possible that mac80211 asks 2727e705c121SKalle Valo * us to stop a hw_scan when it's already stopped. This can 2728e705c121SKalle Valo * happen, for instance, if we stopped the scan ourselves, 2729e705c121SKalle Valo * called ieee80211_scan_completed() and the userspace called 2730e705c121SKalle Valo * cancel scan scan before ieee80211_scan_work() could run. 2731e705c121SKalle Valo * To handle that, simply return if the scan is not running. 2732e705c121SKalle Valo */ 2733e705c121SKalle Valo if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 2734e705c121SKalle Valo iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 2735e705c121SKalle Valo 2736e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2737e705c121SKalle Valo } 2738e705c121SKalle Valo 2739e705c121SKalle Valo static void 2740e705c121SKalle Valo iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 2741e705c121SKalle Valo struct ieee80211_sta *sta, u16 tids, 2742e705c121SKalle Valo int num_frames, 2743e705c121SKalle Valo enum ieee80211_frame_release_type reason, 2744e705c121SKalle Valo bool more_data) 2745e705c121SKalle Valo { 2746e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2747e705c121SKalle Valo 2748e705c121SKalle Valo /* Called when we need to transmit (a) frame(s) from mac80211 */ 2749e705c121SKalle Valo 2750e705c121SKalle Valo iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2751e705c121SKalle Valo tids, more_data, false); 2752e705c121SKalle Valo } 2753e705c121SKalle Valo 2754e705c121SKalle Valo static void 2755e705c121SKalle Valo iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 2756e705c121SKalle Valo struct ieee80211_sta *sta, u16 tids, 2757e705c121SKalle Valo int num_frames, 2758e705c121SKalle Valo enum ieee80211_frame_release_type reason, 2759e705c121SKalle Valo bool more_data) 2760e705c121SKalle Valo { 2761e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2762e705c121SKalle Valo 27639a3fcf91SSara Sharon /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 2764e705c121SKalle Valo 2765e705c121SKalle Valo iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2766e705c121SKalle Valo tids, more_data, true); 2767e705c121SKalle Valo } 2768e705c121SKalle Valo 276965e25482SJohannes Berg static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2770e705c121SKalle Valo enum sta_notify_cmd cmd, 2771e705c121SKalle Valo struct ieee80211_sta *sta) 2772e705c121SKalle Valo { 2773e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2774e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2775e705c121SKalle Valo unsigned long txqs = 0, tids = 0; 2776e705c121SKalle Valo int tid; 2777e705c121SKalle Valo 2778960f864bSJohannes Berg /* 2779960f864bSJohannes Berg * If we have TVQM then we get too high queue numbers - luckily 2780960f864bSJohannes Berg * we really shouldn't get here with that because such hardware 2781960f864bSJohannes Berg * should have firmware supporting buffer station offload. 2782960f864bSJohannes Berg */ 2783960f864bSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 2784960f864bSJohannes Berg return; 2785960f864bSJohannes Berg 2786e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2787311590a3SEmmanuel Grumbach for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 2788e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2789e705c121SKalle Valo 27906862fceeSSara Sharon if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 27911c17627bSSara Sharon continue; 27921c17627bSSara Sharon 2793e705c121SKalle Valo __set_bit(tid_data->txq_id, &txqs); 2794e705c121SKalle Valo 2795dd32162dSLiad Kaufman if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 2796e705c121SKalle Valo continue; 2797e705c121SKalle Valo 2798e705c121SKalle Valo __set_bit(tid, &tids); 2799e705c121SKalle Valo } 2800e705c121SKalle Valo 2801e705c121SKalle Valo switch (cmd) { 2802e705c121SKalle Valo case STA_NOTIFY_SLEEP: 2803e705c121SKalle Valo for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 2804e705c121SKalle Valo ieee80211_sta_set_buffered(sta, tid, true); 2805e705c121SKalle Valo 2806e705c121SKalle Valo if (txqs) 2807e705c121SKalle Valo iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 2808e705c121SKalle Valo /* 2809e705c121SKalle Valo * The fw updates the STA to be asleep. Tx packets on the Tx 2810e705c121SKalle Valo * queues to this station will not be transmitted. The fw will 2811e705c121SKalle Valo * send a Tx response with TX_STATUS_FAIL_DEST_PS. 2812e705c121SKalle Valo */ 2813e705c121SKalle Valo break; 2814e705c121SKalle Valo case STA_NOTIFY_AWAKE: 28150ae98812SSara Sharon if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA)) 2816e705c121SKalle Valo break; 2817e705c121SKalle Valo 2818e705c121SKalle Valo if (txqs) 2819e705c121SKalle Valo iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 2820e705c121SKalle Valo iwl_mvm_sta_modify_ps_wake(mvm, sta); 2821e705c121SKalle Valo break; 2822e705c121SKalle Valo default: 2823e705c121SKalle Valo break; 2824e705c121SKalle Valo } 2825e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2826e705c121SKalle Valo } 2827e705c121SKalle Valo 282865e25482SJohannes Berg static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 282965e25482SJohannes Berg struct ieee80211_vif *vif, 283065e25482SJohannes Berg enum sta_notify_cmd cmd, 283165e25482SJohannes Berg struct ieee80211_sta *sta) 283265e25482SJohannes Berg { 283365e25482SJohannes Berg __iwl_mvm_mac_sta_notify(hw, cmd, sta); 283465e25482SJohannes Berg } 283565e25482SJohannes Berg 283665e25482SJohannes Berg void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 283765e25482SJohannes Berg { 283865e25482SJohannes Berg struct iwl_rx_packet *pkt = rxb_addr(rxb); 283965e25482SJohannes Berg struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 284065e25482SJohannes Berg struct ieee80211_sta *sta; 284165e25482SJohannes Berg struct iwl_mvm_sta *mvmsta; 284265e25482SJohannes Berg bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 284365e25482SJohannes Berg 284465e25482SJohannes Berg if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))) 284565e25482SJohannes Berg return; 284665e25482SJohannes Berg 284765e25482SJohannes Berg rcu_read_lock(); 2848a9560029SSara Sharon sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 284965e25482SJohannes Berg if (WARN_ON(IS_ERR_OR_NULL(sta))) { 285065e25482SJohannes Berg rcu_read_unlock(); 285165e25482SJohannes Berg return; 285265e25482SJohannes Berg } 285365e25482SJohannes Berg 285465e25482SJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 285565e25482SJohannes Berg 285665e25482SJohannes Berg if (!mvmsta->vif || 285765e25482SJohannes Berg mvmsta->vif->type != NL80211_IFTYPE_AP) { 285865e25482SJohannes Berg rcu_read_unlock(); 285965e25482SJohannes Berg return; 286065e25482SJohannes Berg } 286165e25482SJohannes Berg 286265e25482SJohannes Berg if (mvmsta->sleeping != sleeping) { 286365e25482SJohannes Berg mvmsta->sleeping = sleeping; 286465e25482SJohannes Berg __iwl_mvm_mac_sta_notify(mvm->hw, 286565e25482SJohannes Berg sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 286665e25482SJohannes Berg sta); 286765e25482SJohannes Berg ieee80211_sta_ps_transition(sta, sleeping); 286865e25482SJohannes Berg } 286965e25482SJohannes Berg 287065e25482SJohannes Berg if (sleeping) { 287165e25482SJohannes Berg switch (notif->type) { 287265e25482SJohannes Berg case IWL_MVM_PM_EVENT_AWAKE: 287365e25482SJohannes Berg case IWL_MVM_PM_EVENT_ASLEEP: 287465e25482SJohannes Berg break; 287565e25482SJohannes Berg case IWL_MVM_PM_EVENT_UAPSD: 287665e25482SJohannes Berg ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 287765e25482SJohannes Berg break; 287865e25482SJohannes Berg case IWL_MVM_PM_EVENT_PS_POLL: 287965e25482SJohannes Berg ieee80211_sta_pspoll(sta); 288065e25482SJohannes Berg break; 288165e25482SJohannes Berg default: 288265e25482SJohannes Berg break; 288365e25482SJohannes Berg } 288465e25482SJohannes Berg } 288565e25482SJohannes Berg 288665e25482SJohannes Berg rcu_read_unlock(); 288765e25482SJohannes Berg } 288865e25482SJohannes Berg 2889e705c121SKalle Valo static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 2890e705c121SKalle Valo struct ieee80211_vif *vif, 2891e705c121SKalle Valo struct ieee80211_sta *sta) 2892e705c121SKalle Valo { 2893e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2894e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2895e705c121SKalle Valo 2896e705c121SKalle Valo /* 2897e705c121SKalle Valo * This is called before mac80211 does RCU synchronisation, 2898e705c121SKalle Valo * so here we already invalidate our internal RCU-protected 2899e705c121SKalle Valo * station pointer. The rest of the code will thus no longer 2900e705c121SKalle Valo * be able to find the station this way, and we don't rely 2901e705c121SKalle Valo * on further RCU synchronisation after the sta_state() 2902e705c121SKalle Valo * callback deleted the station. 2903e705c121SKalle Valo */ 2904e705c121SKalle Valo mutex_lock(&mvm->mutex); 2905e705c121SKalle Valo if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) 2906e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], 2907e705c121SKalle Valo ERR_PTR(-ENOENT)); 2908e705c121SKalle Valo 2909e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2910e705c121SKalle Valo } 2911e705c121SKalle Valo 2912e705c121SKalle Valo static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2913e705c121SKalle Valo const u8 *bssid) 2914e705c121SKalle Valo { 2915b0ffe455SJohannes Berg int i; 2916b0ffe455SJohannes Berg 2917b0ffe455SJohannes Berg if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 2918b0ffe455SJohannes Berg struct iwl_mvm_tcm_mac *mdata; 2919b0ffe455SJohannes Berg 2920b0ffe455SJohannes Berg mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 2921b0ffe455SJohannes Berg ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 2922b0ffe455SJohannes Berg mdata->opened_rx_ba_sessions = false; 2923b0ffe455SJohannes Berg } 2924b0ffe455SJohannes Berg 2925e705c121SKalle Valo if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 2926e705c121SKalle Valo return; 2927e705c121SKalle Valo 2928c5241b0cSAvraham Stern if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 2929cee5a882SAvri Altman vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2930cee5a882SAvri Altman return; 2931cee5a882SAvri Altman } 2932cee5a882SAvri Altman 293311dee0b4SEmmanuel Grumbach if (!vif->p2p && 293411dee0b4SEmmanuel Grumbach (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 2935e705c121SKalle Valo vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2936e705c121SKalle Valo return; 2937e705c121SKalle Valo } 2938e705c121SKalle Valo 2939b0ffe455SJohannes Berg for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 2940b0ffe455SJohannes Berg if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 2941b0ffe455SJohannes Berg vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2942b0ffe455SJohannes Berg return; 2943b0ffe455SJohannes Berg } 2944b0ffe455SJohannes Berg } 2945b0ffe455SJohannes Berg 2946e705c121SKalle Valo vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 2947e705c121SKalle Valo } 2948e705c121SKalle Valo 29491e8f1329SGolan Ben-Ami static void 29501e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 29511e8f1329SGolan Ben-Ami struct ieee80211_vif *vif, u8 *peer_addr, 29521e8f1329SGolan Ben-Ami enum nl80211_tdls_operation action) 29531e8f1329SGolan Ben-Ami { 29541e8f1329SGolan Ben-Ami struct iwl_fw_dbg_trigger_tlv *trig; 29551e8f1329SGolan Ben-Ami struct iwl_fw_dbg_trigger_tdls *tdls_trig; 29561e8f1329SGolan Ben-Ami 29576c042d75SSara Sharon trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 29586c042d75SSara Sharon FW_DBG_TRIGGER_TDLS); 29596c042d75SSara Sharon if (!trig) 29601e8f1329SGolan Ben-Ami return; 29611e8f1329SGolan Ben-Ami 29621e8f1329SGolan Ben-Ami tdls_trig = (void *)trig->data; 29631e8f1329SGolan Ben-Ami 29641e8f1329SGolan Ben-Ami if (!(tdls_trig->action_bitmap & BIT(action))) 29651e8f1329SGolan Ben-Ami return; 29661e8f1329SGolan Ben-Ami 29671e8f1329SGolan Ben-Ami if (tdls_trig->peer_mode && 29681e8f1329SGolan Ben-Ami memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 29691e8f1329SGolan Ben-Ami return; 29701e8f1329SGolan Ben-Ami 29717174beb6SJohannes Berg iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 29721e8f1329SGolan Ben-Ami "TDLS event occurred, peer %pM, action %d", 29731e8f1329SGolan Ben-Ami peer_addr, action); 29741e8f1329SGolan Ben-Ami } 29751e8f1329SGolan Ben-Ami 2976e705c121SKalle Valo static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 2977e705c121SKalle Valo struct ieee80211_vif *vif, 2978e705c121SKalle Valo struct ieee80211_sta *sta, 2979e705c121SKalle Valo enum ieee80211_sta_state old_state, 2980e705c121SKalle Valo enum ieee80211_sta_state new_state) 2981e705c121SKalle Valo { 2982e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2983e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 29846ea29ce5SJohannes Berg struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2985e705c121SKalle Valo int ret; 2986e705c121SKalle Valo 2987e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 2988e705c121SKalle Valo sta->addr, old_state, new_state); 2989e705c121SKalle Valo 2990e705c121SKalle Valo /* this would be a mac80211 bug ... but don't crash */ 2991e705c121SKalle Valo if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) 2992e705c121SKalle Valo return -EINVAL; 2993e705c121SKalle Valo 299424afba76SLiad Kaufman /* 299524afba76SLiad Kaufman * If we are in a STA removal flow and in DQA mode: 299624afba76SLiad Kaufman * 299724afba76SLiad Kaufman * This is after the sync_rcu part, so the queues have already been 299824afba76SLiad Kaufman * flushed. No more TXs on their way in mac80211's path, and no more in 299924afba76SLiad Kaufman * the queues. 300024afba76SLiad Kaufman * Also, we won't be getting any new TX frames for this station. 300124afba76SLiad Kaufman * What we might have are deferred TX frames that need to be taken care 300224afba76SLiad Kaufman * of. 300324afba76SLiad Kaufman * 300424afba76SLiad Kaufman * Drop any still-queued deferred-frame before removing the STA, and 300524afba76SLiad Kaufman * make sure the worker is no longer handling frames for this STA. 300624afba76SLiad Kaufman */ 300724afba76SLiad Kaufman if (old_state == IEEE80211_STA_NONE && 3008c8f54701SJohannes Berg new_state == IEEE80211_STA_NOTEXIST) { 300924afba76SLiad Kaufman flush_work(&mvm->add_stream_wk); 301024afba76SLiad Kaufman 301124afba76SLiad Kaufman /* 301224afba76SLiad Kaufman * No need to make sure deferred TX indication is off since the 301324afba76SLiad Kaufman * worker will already remove it if it was on 301424afba76SLiad Kaufman */ 301524afba76SLiad Kaufman } 301624afba76SLiad Kaufman 3017e705c121SKalle Valo mutex_lock(&mvm->mutex); 30186ea29ce5SJohannes Berg /* track whether or not the station is associated */ 3019d94c5a82SGregory Greenman mvm_sta->sta_state = new_state; 30206ea29ce5SJohannes Berg 3021e705c121SKalle Valo if (old_state == IEEE80211_STA_NOTEXIST && 3022e705c121SKalle Valo new_state == IEEE80211_STA_NONE) { 3023e705c121SKalle Valo /* 3024e705c121SKalle Valo * Firmware bug - it'll crash if the beacon interval is less 3025e705c121SKalle Valo * than 16. We can't avoid connecting at all, so refuse the 3026e705c121SKalle Valo * station state change, this will cause mac80211 to abandon 3027e705c121SKalle Valo * attempts to connect to this AP, and eventually wpa_s will 3028e705c121SKalle Valo * blacklist the AP... 3029e705c121SKalle Valo */ 3030e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 3031e705c121SKalle Valo vif->bss_conf.beacon_int < 16) { 3032e705c121SKalle Valo IWL_ERR(mvm, 3033e705c121SKalle Valo "AP %pM beacon interval is %d, refusing due to firmware bug!\n", 3034e705c121SKalle Valo sta->addr, vif->bss_conf.beacon_int); 3035e705c121SKalle Valo ret = -EINVAL; 3036e705c121SKalle Valo goto out_unlock; 3037e705c121SKalle Valo } 3038e705c121SKalle Valo 3039e705c121SKalle Valo if (sta->tdls && 3040e705c121SKalle Valo (vif->p2p || 3041e705c121SKalle Valo iwl_mvm_tdls_sta_count(mvm, NULL) == 3042e705c121SKalle Valo IWL_MVM_TDLS_STA_COUNT || 3043e705c121SKalle Valo iwl_mvm_phy_ctx_count(mvm) > 1)) { 3044e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3045e705c121SKalle Valo ret = -EBUSY; 3046e705c121SKalle Valo goto out_unlock; 3047e705c121SKalle Valo } 3048e705c121SKalle Valo 3049e705c121SKalle Valo ret = iwl_mvm_add_sta(mvm, vif, sta); 30501e8f1329SGolan Ben-Ami if (sta->tdls && ret == 0) { 3051e705c121SKalle Valo iwl_mvm_recalc_tdls_state(mvm, vif, true); 30521e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 30531e8f1329SGolan Ben-Ami NL80211_TDLS_SETUP); 30541e8f1329SGolan Ben-Ami } 3055438af969SSara Sharon 3056438af969SSara Sharon sta->max_rc_amsdu_len = 1; 3057e705c121SKalle Valo } else if (old_state == IEEE80211_STA_NONE && 3058e705c121SKalle Valo new_state == IEEE80211_STA_AUTH) { 3059e705c121SKalle Valo /* 3060e705c121SKalle Valo * EBS may be disabled due to previous failures reported by FW. 3061e705c121SKalle Valo * Reset EBS status here assuming environment has been changed. 3062e705c121SKalle Valo */ 3063e705c121SKalle Valo mvm->last_ebs_successful = true; 3064e705c121SKalle Valo iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3065e705c121SKalle Valo ret = 0; 3066e705c121SKalle Valo } else if (old_state == IEEE80211_STA_AUTH && 3067e705c121SKalle Valo new_state == IEEE80211_STA_ASSOC) { 30688be30c13SAyala Beker if (vif->type == NL80211_IFTYPE_AP) { 30698be30c13SAyala Beker mvmvif->ap_assoc_sta_count++; 30708be30c13SAyala Beker iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 307102221a81SShaul Triebitz if (vif->bss_conf.he_support && 307202221a81SShaul Triebitz !iwlwifi_mod_params.disable_11ax) 307302221a81SShaul Triebitz iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->sta_id); 30748be30c13SAyala Beker } 3075735a0045SGoodstein, Mordechay 30763baf7528SAvraham Stern iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 30773baf7528SAvraham Stern false); 3078735a0045SGoodstein, Mordechay ret = iwl_mvm_update_sta(mvm, vif, sta); 3079e705c121SKalle Valo } else if (old_state == IEEE80211_STA_ASSOC && 3080e705c121SKalle Valo new_state == IEEE80211_STA_AUTHORIZED) { 3081e705c121SKalle Valo 3082e705c121SKalle Valo /* we don't support TDLS during DCM */ 3083e705c121SKalle Valo if (iwl_mvm_phy_ctx_count(mvm) > 1) 3084e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 3085e705c121SKalle Valo 30861e8f1329SGolan Ben-Ami if (sta->tdls) 30871e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 30881e8f1329SGolan Ben-Ami NL80211_TDLS_ENABLE_LINK); 30891e8f1329SGolan Ben-Ami 3090e705c121SKalle Valo /* enable beacon filtering */ 3091e705c121SKalle Valo WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 30926b7a5aeaSNaftali Goldstein 30933baf7528SAvraham Stern iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 30943baf7528SAvraham Stern true); 30956b7a5aeaSNaftali Goldstein 3096337bfc98SAvraham Stern /* if wep is used, need to set the key for the station now */ 3097337bfc98SAvraham Stern if (vif->type == NL80211_IFTYPE_AP && mvmvif->ap_wep_key) 3098337bfc98SAvraham Stern ret = iwl_mvm_set_sta_key(mvm, vif, sta, 3099337bfc98SAvraham Stern mvmvif->ap_wep_key, 3100337bfc98SAvraham Stern STA_KEY_IDX_INVALID); 3101337bfc98SAvraham Stern else 3102e705c121SKalle Valo ret = 0; 3103e705c121SKalle Valo } else if (old_state == IEEE80211_STA_AUTHORIZED && 3104e705c121SKalle Valo new_state == IEEE80211_STA_ASSOC) { 3105e705c121SKalle Valo /* disable beacon filtering */ 3106e705c121SKalle Valo WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0)); 3107e705c121SKalle Valo ret = 0; 3108e705c121SKalle Valo } else if (old_state == IEEE80211_STA_ASSOC && 3109e705c121SKalle Valo new_state == IEEE80211_STA_AUTH) { 31108be30c13SAyala Beker if (vif->type == NL80211_IFTYPE_AP) { 31118be30c13SAyala Beker mvmvif->ap_assoc_sta_count--; 31128be30c13SAyala Beker iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 31138be30c13SAyala Beker } 3114e705c121SKalle Valo ret = 0; 3115e705c121SKalle Valo } else if (old_state == IEEE80211_STA_AUTH && 3116e705c121SKalle Valo new_state == IEEE80211_STA_NONE) { 3117e705c121SKalle Valo ret = 0; 3118e705c121SKalle Valo } else if (old_state == IEEE80211_STA_NONE && 3119e705c121SKalle Valo new_state == IEEE80211_STA_NOTEXIST) { 3120e705c121SKalle Valo ret = iwl_mvm_rm_sta(mvm, vif, sta); 31211e8f1329SGolan Ben-Ami if (sta->tdls) { 3122e705c121SKalle Valo iwl_mvm_recalc_tdls_state(mvm, vif, false); 31231e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 31241e8f1329SGolan Ben-Ami NL80211_TDLS_DISABLE_LINK); 31251e8f1329SGolan Ben-Ami } 312634a880d8SLiad Kaufman 312734a880d8SLiad Kaufman /* Remove STA key if this is an AP using WEP */ 312834a880d8SLiad Kaufman if (vif->type == NL80211_IFTYPE_AP && mvmvif->ap_wep_key) { 312934a880d8SLiad Kaufman int rm_ret = iwl_mvm_remove_sta_key(mvm, vif, sta, 313034a880d8SLiad Kaufman mvmvif->ap_wep_key); 313134a880d8SLiad Kaufman 313234a880d8SLiad Kaufman if (!ret) 313334a880d8SLiad Kaufman ret = rm_ret; 313434a880d8SLiad Kaufman } 313534a880d8SLiad Kaufman 3136e705c121SKalle Valo } else { 3137e705c121SKalle Valo ret = -EIO; 3138e705c121SKalle Valo } 3139e705c121SKalle Valo out_unlock: 3140e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3141e705c121SKalle Valo 3142e705c121SKalle Valo if (sta->tdls && ret == 0) { 3143e705c121SKalle Valo if (old_state == IEEE80211_STA_NOTEXIST && 3144e705c121SKalle Valo new_state == IEEE80211_STA_NONE) 3145e705c121SKalle Valo ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3146e705c121SKalle Valo else if (old_state == IEEE80211_STA_NONE && 3147e705c121SKalle Valo new_state == IEEE80211_STA_NOTEXIST) 3148e705c121SKalle Valo ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3149e705c121SKalle Valo } 3150e705c121SKalle Valo 3151e705c121SKalle Valo return ret; 3152e705c121SKalle Valo } 3153e705c121SKalle Valo 3154e705c121SKalle Valo static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3155e705c121SKalle Valo { 3156e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3157e705c121SKalle Valo 3158e705c121SKalle Valo mvm->rts_threshold = value; 3159e705c121SKalle Valo 3160e705c121SKalle Valo return 0; 3161e705c121SKalle Valo } 3162e705c121SKalle Valo 3163e705c121SKalle Valo static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, 3164e705c121SKalle Valo struct ieee80211_vif *vif, 3165e705c121SKalle Valo struct ieee80211_sta *sta, u32 changed) 3166e705c121SKalle Valo { 3167e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3168e705c121SKalle Valo 3169e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 3170e705c121SKalle Valo changed & IEEE80211_RC_NSS_CHANGED) 3171e705c121SKalle Valo iwl_mvm_sf_update(mvm, vif, false); 3172e705c121SKalle Valo } 3173e705c121SKalle Valo 3174e705c121SKalle Valo static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 3175e705c121SKalle Valo struct ieee80211_vif *vif, u16 ac, 3176e705c121SKalle Valo const struct ieee80211_tx_queue_params *params) 3177e705c121SKalle Valo { 3178e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3179e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3180e705c121SKalle Valo 3181e705c121SKalle Valo mvmvif->queue_params[ac] = *params; 3182e705c121SKalle Valo 3183e705c121SKalle Valo /* 3184e705c121SKalle Valo * No need to update right away, we'll get BSS_CHANGED_QOS 3185e705c121SKalle Valo * The exception is P2P_DEVICE interface which needs immediate update. 3186e705c121SKalle Valo */ 3187e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 3188e705c121SKalle Valo int ret; 3189e705c121SKalle Valo 3190e705c121SKalle Valo mutex_lock(&mvm->mutex); 3191e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3192e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3193e705c121SKalle Valo return ret; 3194e705c121SKalle Valo } 3195e705c121SKalle Valo return 0; 3196e705c121SKalle Valo } 3197e705c121SKalle Valo 3198e705c121SKalle Valo static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 3199d4e36e55SIlan Peer struct ieee80211_vif *vif, 3200d4e36e55SIlan Peer u16 req_duration) 3201e705c121SKalle Valo { 3202e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 32037c70fee5SSara Sharon u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 32047c70fee5SSara Sharon u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 3205e705c121SKalle Valo 3206e705c121SKalle Valo /* 3207e705c121SKalle Valo * iwl_mvm_protect_session() reads directly from the device 3208e705c121SKalle Valo * (the system time), so make sure it is available. 3209e705c121SKalle Valo */ 3210e705c121SKalle Valo if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX)) 3211e705c121SKalle Valo return; 3212e705c121SKalle Valo 3213d4e36e55SIlan Peer if (req_duration > duration) 3214d4e36e55SIlan Peer duration = req_duration; 3215d4e36e55SIlan Peer 3216e705c121SKalle Valo mutex_lock(&mvm->mutex); 3217e705c121SKalle Valo /* Try really hard to protect the session and hear a beacon */ 3218e705c121SKalle Valo iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false); 3219e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3220e705c121SKalle Valo 3221e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX); 3222e705c121SKalle Valo } 3223e705c121SKalle Valo 3224e705c121SKalle Valo static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 3225e705c121SKalle Valo struct ieee80211_vif *vif, 3226e705c121SKalle Valo struct cfg80211_sched_scan_request *req, 3227e705c121SKalle Valo struct ieee80211_scan_ies *ies) 3228e705c121SKalle Valo { 3229e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3230e705c121SKalle Valo 3231e705c121SKalle Valo int ret; 3232e705c121SKalle Valo 3233e705c121SKalle Valo mutex_lock(&mvm->mutex); 3234e705c121SKalle Valo 3235e705c121SKalle Valo if (!vif->bss_conf.idle) { 3236e705c121SKalle Valo ret = -EBUSY; 3237e705c121SKalle Valo goto out; 3238e705c121SKalle Valo } 3239e705c121SKalle Valo 3240e705c121SKalle Valo ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 3241e705c121SKalle Valo 3242e705c121SKalle Valo out: 3243e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3244e705c121SKalle Valo return ret; 3245e705c121SKalle Valo } 3246e705c121SKalle Valo 3247e705c121SKalle Valo static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 3248e705c121SKalle Valo struct ieee80211_vif *vif) 3249e705c121SKalle Valo { 3250e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3251e705c121SKalle Valo int ret; 3252e705c121SKalle Valo 3253e705c121SKalle Valo mutex_lock(&mvm->mutex); 3254e705c121SKalle Valo 3255e705c121SKalle Valo /* Due to a race condition, it's possible that mac80211 asks 3256e705c121SKalle Valo * us to stop a sched_scan when it's already stopped. This 3257e705c121SKalle Valo * can happen, for instance, if we stopped the scan ourselves, 3258e705c121SKalle Valo * called ieee80211_sched_scan_stopped() and the userspace called 3259e705c121SKalle Valo * stop sched scan scan before ieee80211_sched_scan_stopped_work() 3260e705c121SKalle Valo * could run. To handle this, simply return if the scan is 3261e705c121SKalle Valo * not running. 3262e705c121SKalle Valo */ 3263e705c121SKalle Valo if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 3264e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3265e705c121SKalle Valo return 0; 3266e705c121SKalle Valo } 3267e705c121SKalle Valo 3268e705c121SKalle Valo ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 3269e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3270e705c121SKalle Valo iwl_mvm_wait_for_async_handlers(mvm); 3271e705c121SKalle Valo 3272e705c121SKalle Valo return ret; 3273e705c121SKalle Valo } 3274e705c121SKalle Valo 3275e705c121SKalle Valo static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3276e705c121SKalle Valo enum set_key_cmd cmd, 3277e705c121SKalle Valo struct ieee80211_vif *vif, 3278e705c121SKalle Valo struct ieee80211_sta *sta, 3279e705c121SKalle Valo struct ieee80211_key_conf *key) 3280e705c121SKalle Valo { 3281e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3282f5e28eacSJohannes Berg struct iwl_mvm_sta *mvmsta; 3283f5e28eacSJohannes Berg struct iwl_mvm_key_pn *ptk_pn; 3284f5e28eacSJohannes Berg int keyidx = key->keyidx; 3285e705c121SKalle Valo int ret; 32864615fd15SEmmanuel Grumbach u8 key_offset; 3287e705c121SKalle Valo 32883b37f4c9SJohannes Berg if (iwlwifi_mod_params.swcrypto) { 3289e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); 3290e705c121SKalle Valo return -EOPNOTSUPP; 3291e705c121SKalle Valo } 3292e705c121SKalle Valo 3293e705c121SKalle Valo switch (key->cipher) { 3294e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 32957f768ad5SDavid Spinadel if (!mvm->trans->cfg->gen2) { 3296e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 32971ad4f639SEliad Peller key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 32987f768ad5SDavid Spinadel } else if (vif->type == NL80211_IFTYPE_STATION) { 32997f768ad5SDavid Spinadel key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 33007f768ad5SDavid Spinadel } else { 33017f768ad5SDavid Spinadel IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 33027f768ad5SDavid Spinadel return -EOPNOTSUPP; 33037f768ad5SDavid Spinadel } 3304e705c121SKalle Valo break; 3305e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 33062a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 33072a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 330885aeb58cSDavid Spinadel if (!iwl_mvm_has_new_tx_api(mvm)) 3309e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3310e705c121SKalle Valo break; 3311e705c121SKalle Valo case WLAN_CIPHER_SUITE_AES_CMAC: 33128e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_128: 33138e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3314e705c121SKalle Valo WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 3315e705c121SKalle Valo break; 3316e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 3317e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 3318337bfc98SAvraham Stern if (vif->type == NL80211_IFTYPE_AP) { 3319337bfc98SAvraham Stern struct iwl_mvm_vif *mvmvif = 3320337bfc98SAvraham Stern iwl_mvm_vif_from_mac80211(vif); 3321337bfc98SAvraham Stern 3322337bfc98SAvraham Stern mvmvif->ap_wep_key = kmemdup(key, 3323337bfc98SAvraham Stern sizeof(*key) + key->keylen, 3324337bfc98SAvraham Stern GFP_KERNEL); 3325337bfc98SAvraham Stern if (!mvmvif->ap_wep_key) 3326337bfc98SAvraham Stern return -ENOMEM; 3327337bfc98SAvraham Stern } 3328337bfc98SAvraham Stern 3329e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION) 3330e705c121SKalle Valo return 0; 3331e705c121SKalle Valo break; 3332e705c121SKalle Valo default: 3333e705c121SKalle Valo /* currently FW supports only one optional cipher scheme */ 3334e705c121SKalle Valo if (hw->n_cipher_schemes && 3335e705c121SKalle Valo hw->cipher_schemes->cipher == key->cipher) 3336e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3337e705c121SKalle Valo else 3338e705c121SKalle Valo return -EOPNOTSUPP; 3339e705c121SKalle Valo } 3340e705c121SKalle Valo 3341e705c121SKalle Valo mutex_lock(&mvm->mutex); 3342e705c121SKalle Valo 3343e705c121SKalle Valo switch (cmd) { 3344e705c121SKalle Valo case SET_KEY: 3345e705c121SKalle Valo if ((vif->type == NL80211_IFTYPE_ADHOC || 3346e705c121SKalle Valo vif->type == NL80211_IFTYPE_AP) && !sta) { 3347e705c121SKalle Valo /* 3348e705c121SKalle Valo * GTK on AP interface is a TX-only key, return 0; 3349e705c121SKalle Valo * on IBSS they're per-station and because we're lazy 3350e705c121SKalle Valo * we don't support them for RX, so do the same. 33518e160ab8SAyala Beker * CMAC/GMAC in AP/IBSS modes must be done in software. 3352e705c121SKalle Valo */ 33538e160ab8SAyala Beker if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 33548e160ab8SAyala Beker key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 33558e160ab8SAyala Beker key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 335681279c49SJohannes Berg ret = -EOPNOTSUPP; 335781279c49SJohannes Berg else 3358e705c121SKalle Valo ret = 0; 335985aeb58cSDavid Spinadel 336085aeb58cSDavid Spinadel if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 336185aeb58cSDavid Spinadel key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 336285aeb58cSDavid Spinadel !iwl_mvm_has_new_tx_api(mvm)) { 3363e705c121SKalle Valo key->hw_key_idx = STA_KEY_IDX_INVALID; 3364e705c121SKalle Valo break; 3365e705c121SKalle Valo } 336685aeb58cSDavid Spinadel } 3367e705c121SKalle Valo 3368e705c121SKalle Valo /* During FW restart, in order to restore the state as it was, 3369e705c121SKalle Valo * don't try to reprogram keys we previously failed for. 3370e705c121SKalle Valo */ 3371e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3372e705c121SKalle Valo key->hw_key_idx == STA_KEY_IDX_INVALID) { 3373e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, 3374e705c121SKalle Valo "skip invalid idx key programming during restart\n"); 3375e705c121SKalle Valo ret = 0; 3376e705c121SKalle Valo break; 3377e705c121SKalle Valo } 3378e705c121SKalle Valo 3379f5e28eacSJohannes Berg if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3380f5e28eacSJohannes Berg sta && iwl_mvm_has_new_rx_api(mvm) && 3381f5e28eacSJohannes Berg key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3382f5e28eacSJohannes Berg (key->cipher == WLAN_CIPHER_SUITE_CCMP || 33832a53d166SAyala Beker key->cipher == WLAN_CIPHER_SUITE_GCMP || 33842a53d166SAyala Beker key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3385f5e28eacSJohannes Berg struct ieee80211_key_seq seq; 3386f5e28eacSJohannes Berg int tid, q; 3387f5e28eacSJohannes Berg 3388f5e28eacSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 3389f5e28eacSJohannes Berg WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 3390acafe7e3SKees Cook ptk_pn = kzalloc(struct_size(ptk_pn, q, 3391acafe7e3SKees Cook mvm->trans->num_rx_queues), 3392f5e28eacSJohannes Berg GFP_KERNEL); 3393f5e28eacSJohannes Berg if (!ptk_pn) { 3394f5e28eacSJohannes Berg ret = -ENOMEM; 3395f5e28eacSJohannes Berg break; 3396f5e28eacSJohannes Berg } 3397f5e28eacSJohannes Berg 3398f5e28eacSJohannes Berg for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 3399f5e28eacSJohannes Berg ieee80211_get_key_rx_seq(key, tid, &seq); 3400f5e28eacSJohannes Berg for (q = 0; q < mvm->trans->num_rx_queues; q++) 3401f5e28eacSJohannes Berg memcpy(ptk_pn->q[q].pn[tid], 3402f5e28eacSJohannes Berg seq.ccmp.pn, 3403f5e28eacSJohannes Berg IEEE80211_CCMP_PN_LEN); 3404f5e28eacSJohannes Berg } 3405f5e28eacSJohannes Berg 3406f5e28eacSJohannes Berg rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 3407f5e28eacSJohannes Berg } 3408f5e28eacSJohannes Berg 34094615fd15SEmmanuel Grumbach /* in HW restart reuse the index, otherwise request a new one */ 34104615fd15SEmmanuel Grumbach if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 34114615fd15SEmmanuel Grumbach key_offset = key->hw_key_idx; 34124615fd15SEmmanuel Grumbach else 34134615fd15SEmmanuel Grumbach key_offset = STA_KEY_IDX_INVALID; 34144615fd15SEmmanuel Grumbach 3415e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); 34164615fd15SEmmanuel Grumbach ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 3417e705c121SKalle Valo if (ret) { 3418e705c121SKalle Valo IWL_WARN(mvm, "set key failed\n"); 3419e705c121SKalle Valo /* 3420e705c121SKalle Valo * can't add key for RX, but we don't need it 3421e705c121SKalle Valo * in the device for TX so still return 0 3422e705c121SKalle Valo */ 3423e705c121SKalle Valo key->hw_key_idx = STA_KEY_IDX_INVALID; 3424e705c121SKalle Valo ret = 0; 3425e705c121SKalle Valo } 3426e705c121SKalle Valo 3427e705c121SKalle Valo break; 3428e705c121SKalle Valo case DISABLE_KEY: 3429e705c121SKalle Valo if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 3430e705c121SKalle Valo ret = 0; 3431e705c121SKalle Valo break; 3432e705c121SKalle Valo } 3433e705c121SKalle Valo 3434f5e28eacSJohannes Berg if (sta && iwl_mvm_has_new_rx_api(mvm) && 3435f5e28eacSJohannes Berg key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3436f5e28eacSJohannes Berg (key->cipher == WLAN_CIPHER_SUITE_CCMP || 34372a53d166SAyala Beker key->cipher == WLAN_CIPHER_SUITE_GCMP || 34382a53d166SAyala Beker key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3439f5e28eacSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 3440f5e28eacSJohannes Berg ptk_pn = rcu_dereference_protected( 3441f5e28eacSJohannes Berg mvmsta->ptk_pn[keyidx], 3442f5e28eacSJohannes Berg lockdep_is_held(&mvm->mutex)); 3443f5e28eacSJohannes Berg RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 3444f5e28eacSJohannes Berg if (ptk_pn) 3445f5e28eacSJohannes Berg kfree_rcu(ptk_pn, rcu_head); 3446f5e28eacSJohannes Berg } 3447f5e28eacSJohannes Berg 3448e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 3449e705c121SKalle Valo ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 3450e705c121SKalle Valo break; 3451e705c121SKalle Valo default: 3452e705c121SKalle Valo ret = -EINVAL; 3453e705c121SKalle Valo } 3454e705c121SKalle Valo 3455e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3456e705c121SKalle Valo return ret; 3457e705c121SKalle Valo } 3458e705c121SKalle Valo 3459e705c121SKalle Valo static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 3460e705c121SKalle Valo struct ieee80211_vif *vif, 3461e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3462e705c121SKalle Valo struct ieee80211_sta *sta, 3463e705c121SKalle Valo u32 iv32, u16 *phase1key) 3464e705c121SKalle Valo { 3465e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3466e705c121SKalle Valo 3467e705c121SKalle Valo if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 3468e705c121SKalle Valo return; 3469e705c121SKalle Valo 3470e705c121SKalle Valo iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 3471e705c121SKalle Valo } 3472e705c121SKalle Valo 3473e705c121SKalle Valo 3474e705c121SKalle Valo static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 3475e705c121SKalle Valo struct iwl_rx_packet *pkt, void *data) 3476e705c121SKalle Valo { 3477e705c121SKalle Valo struct iwl_mvm *mvm = 3478e705c121SKalle Valo container_of(notif_wait, struct iwl_mvm, notif_wait); 3479e705c121SKalle Valo struct iwl_hs20_roc_res *resp; 3480e705c121SKalle Valo int resp_len = iwl_rx_packet_payload_len(pkt); 3481e705c121SKalle Valo struct iwl_mvm_time_event_data *te_data = data; 3482e705c121SKalle Valo 3483e705c121SKalle Valo if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 3484e705c121SKalle Valo return true; 3485e705c121SKalle Valo 3486e705c121SKalle Valo if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 3487e705c121SKalle Valo IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 3488e705c121SKalle Valo return true; 3489e705c121SKalle Valo } 3490e705c121SKalle Valo 3491e705c121SKalle Valo resp = (void *)pkt->data; 3492e705c121SKalle Valo 3493e705c121SKalle Valo IWL_DEBUG_TE(mvm, 3494b71a9c35SColin Ian King "Aux ROC: Received response from ucode: status=%d uid=%d\n", 3495e705c121SKalle Valo resp->status, resp->event_unique_id); 3496e705c121SKalle Valo 3497e705c121SKalle Valo te_data->uid = le32_to_cpu(resp->event_unique_id); 3498e705c121SKalle Valo IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 3499e705c121SKalle Valo te_data->uid); 3500e705c121SKalle Valo 3501e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 3502e705c121SKalle Valo list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 3503e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 3504e705c121SKalle Valo 3505e705c121SKalle Valo return true; 3506e705c121SKalle Valo } 3507e705c121SKalle Valo 3508dc28e12fSMatti Gottlieb #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 3509dc28e12fSMatti Gottlieb #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 3510dc28e12fSMatti Gottlieb #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 3511dc28e12fSMatti Gottlieb #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 3512dc28e12fSMatti Gottlieb #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 3513e705c121SKalle Valo static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 3514e705c121SKalle Valo struct ieee80211_channel *channel, 3515e705c121SKalle Valo struct ieee80211_vif *vif, 3516e705c121SKalle Valo int duration) 3517e705c121SKalle Valo { 3518e705c121SKalle Valo int res, time_reg = DEVICE_SYSTEM_TIME_REG; 3519e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3520e705c121SKalle Valo struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 3521e705c121SKalle Valo static const u16 time_event_response[] = { HOT_SPOT_CMD }; 3522e705c121SKalle Valo struct iwl_notification_wait wait_time_event; 3523dc28e12fSMatti Gottlieb u32 dtim_interval = vif->bss_conf.dtim_period * 3524dc28e12fSMatti Gottlieb vif->bss_conf.beacon_int; 3525dc28e12fSMatti Gottlieb u32 req_dur, delay; 3526e705c121SKalle Valo struct iwl_hs20_roc_req aux_roc_req = { 3527e705c121SKalle Valo .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 3528e705c121SKalle Valo .id_and_color = 3529e705c121SKalle Valo cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 3530e705c121SKalle Valo .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 3531e705c121SKalle Valo }; 353257e861d9SDavid Spinadel struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 353357e861d9SDavid Spinadel &aux_roc_req.channel_info); 353457e861d9SDavid Spinadel u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 353557e861d9SDavid Spinadel 353657e861d9SDavid Spinadel /* Set the channel info data */ 353757e861d9SDavid Spinadel iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 353857e861d9SDavid Spinadel (channel->band == NL80211_BAND_2GHZ) ? 353957e861d9SDavid Spinadel PHY_BAND_24 : PHY_BAND_5, 354057e861d9SDavid Spinadel PHY_VHT_CHANNEL_MODE20, 354157e861d9SDavid Spinadel 0); 354257e861d9SDavid Spinadel 354357e861d9SDavid Spinadel /* Set the time and duration */ 354457e861d9SDavid Spinadel tail->apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)); 3545e705c121SKalle Valo 3546dc28e12fSMatti Gottlieb delay = AUX_ROC_MIN_DELAY; 3547dc28e12fSMatti Gottlieb req_dur = MSEC_TO_TU(duration); 3548dc28e12fSMatti Gottlieb 3549dc28e12fSMatti Gottlieb /* 3550dc28e12fSMatti Gottlieb * If we are associated we want the delay time to be at least one 3551dc28e12fSMatti Gottlieb * dtim interval so that the FW can wait until after the DTIM and 3552dc28e12fSMatti Gottlieb * then start the time event, this will potentially allow us to 3553dc28e12fSMatti Gottlieb * remain off-channel for the max duration. 3554dc28e12fSMatti Gottlieb * Since we want to use almost a whole dtim interval we would also 3555dc28e12fSMatti Gottlieb * like the delay to be for 2-3 dtim intervals, in case there are 3556dc28e12fSMatti Gottlieb * other time events with higher priority. 3557dc28e12fSMatti Gottlieb */ 3558dc28e12fSMatti Gottlieb if (vif->bss_conf.assoc) { 3559dc28e12fSMatti Gottlieb delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 3560dc28e12fSMatti Gottlieb /* We cannot remain off-channel longer than the DTIM interval */ 3561dc28e12fSMatti Gottlieb if (dtim_interval <= req_dur) { 3562dc28e12fSMatti Gottlieb req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 3563dc28e12fSMatti Gottlieb if (req_dur <= AUX_ROC_MIN_DURATION) 3564dc28e12fSMatti Gottlieb req_dur = dtim_interval - 3565dc28e12fSMatti Gottlieb AUX_ROC_MIN_SAFETY_BUFFER; 3566dc28e12fSMatti Gottlieb } 3567dc28e12fSMatti Gottlieb } 3568dc28e12fSMatti Gottlieb 356957e861d9SDavid Spinadel tail->duration = cpu_to_le32(req_dur); 357057e861d9SDavid Spinadel tail->apply_time_max_delay = cpu_to_le32(delay); 3571dc28e12fSMatti Gottlieb 3572dc28e12fSMatti Gottlieb IWL_DEBUG_TE(mvm, 3573dc28e12fSMatti Gottlieb "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 3574dc28e12fSMatti Gottlieb channel->hw_value, req_dur, duration, delay, 3575dc28e12fSMatti Gottlieb dtim_interval); 3576e705c121SKalle Valo /* Set the node address */ 357757e861d9SDavid Spinadel memcpy(tail->node_addr, vif->addr, ETH_ALEN); 3578e705c121SKalle Valo 3579e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3580e705c121SKalle Valo 3581e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 3582e705c121SKalle Valo 3583e705c121SKalle Valo if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 3584e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 3585e705c121SKalle Valo return -EIO; 3586e705c121SKalle Valo } 3587e705c121SKalle Valo 3588e705c121SKalle Valo te_data->vif = vif; 3589e705c121SKalle Valo te_data->duration = duration; 3590e705c121SKalle Valo te_data->id = HOT_SPOT_CMD; 3591e705c121SKalle Valo 3592e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 3593e705c121SKalle Valo 3594e705c121SKalle Valo /* 3595e705c121SKalle Valo * Use a notification wait, which really just processes the 3596e705c121SKalle Valo * command response and doesn't wait for anything, in order 3597e705c121SKalle Valo * to be able to process the response and get the UID inside 3598e705c121SKalle Valo * the RX path. Using CMD_WANT_SKB doesn't work because it 3599e705c121SKalle Valo * stores the buffer and then wakes up this thread, by which 3600e705c121SKalle Valo * time another notification (that the time event started) 3601e705c121SKalle Valo * might already be processed unsuccessfully. 3602e705c121SKalle Valo */ 3603e705c121SKalle Valo iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 3604e705c121SKalle Valo time_event_response, 3605e705c121SKalle Valo ARRAY_SIZE(time_event_response), 3606e705c121SKalle Valo iwl_mvm_rx_aux_roc, te_data); 3607e705c121SKalle Valo 360857e861d9SDavid Spinadel res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 3609e705c121SKalle Valo &aux_roc_req); 3610e705c121SKalle Valo 3611e705c121SKalle Valo if (res) { 3612e705c121SKalle Valo IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 3613e705c121SKalle Valo iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 3614e705c121SKalle Valo goto out_clear_te; 3615e705c121SKalle Valo } 3616e705c121SKalle Valo 3617e705c121SKalle Valo /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 3618e705c121SKalle Valo res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 3619e705c121SKalle Valo /* should never fail */ 3620e705c121SKalle Valo WARN_ON_ONCE(res); 3621e705c121SKalle Valo 3622e705c121SKalle Valo if (res) { 3623e705c121SKalle Valo out_clear_te: 3624e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 3625e705c121SKalle Valo iwl_mvm_te_clear_data(mvm, te_data); 3626e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 3627e705c121SKalle Valo } 3628e705c121SKalle Valo 3629e705c121SKalle Valo return res; 3630e705c121SKalle Valo } 3631e705c121SKalle Valo 3632e705c121SKalle Valo static int iwl_mvm_roc(struct ieee80211_hw *hw, 3633e705c121SKalle Valo struct ieee80211_vif *vif, 3634e705c121SKalle Valo struct ieee80211_channel *channel, 3635e705c121SKalle Valo int duration, 3636e705c121SKalle Valo enum ieee80211_roc_type type) 3637e705c121SKalle Valo { 3638e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3639e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3640e705c121SKalle Valo struct cfg80211_chan_def chandef; 3641e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt; 3642e705c121SKalle Valo int ret, i; 3643e705c121SKalle Valo 3644e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 3645e705c121SKalle Valo duration, type); 3646e705c121SKalle Valo 36479834781cSJohannes Berg /* 36489834781cSJohannes Berg * Flush the done work, just in case it's still pending, so that 36499834781cSJohannes Berg * the work it does can complete and we can accept new frames. 36509834781cSJohannes Berg */ 3651e705c121SKalle Valo flush_work(&mvm->roc_done_wk); 3652e705c121SKalle Valo 3653e705c121SKalle Valo mutex_lock(&mvm->mutex); 3654e705c121SKalle Valo 3655e705c121SKalle Valo switch (vif->type) { 3656e705c121SKalle Valo case NL80211_IFTYPE_STATION: 3657e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 3658e705c121SKalle Valo IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 3659e705c121SKalle Valo /* Use aux roc framework (HS20) */ 3660e705c121SKalle Valo ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 3661e705c121SKalle Valo vif, duration); 3662e705c121SKalle Valo goto out_unlock; 3663e705c121SKalle Valo } 3664e705c121SKalle Valo IWL_ERR(mvm, "hotspot not supported\n"); 3665e705c121SKalle Valo ret = -EINVAL; 3666e705c121SKalle Valo goto out_unlock; 3667e705c121SKalle Valo case NL80211_IFTYPE_P2P_DEVICE: 3668e705c121SKalle Valo /* handle below */ 3669e705c121SKalle Valo break; 3670e705c121SKalle Valo default: 3671e705c121SKalle Valo IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 3672e705c121SKalle Valo ret = -EINVAL; 3673e705c121SKalle Valo goto out_unlock; 3674e705c121SKalle Valo } 3675e705c121SKalle Valo 3676e705c121SKalle Valo for (i = 0; i < NUM_PHY_CTX; i++) { 3677e705c121SKalle Valo phy_ctxt = &mvm->phy_ctxts[i]; 3678e705c121SKalle Valo if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) 3679e705c121SKalle Valo continue; 3680e705c121SKalle Valo 3681e705c121SKalle Valo if (phy_ctxt->ref && channel == phy_ctxt->channel) { 3682e705c121SKalle Valo /* 3683e705c121SKalle Valo * Unbind the P2P_DEVICE from the current PHY context, 3684e705c121SKalle Valo * and if the PHY context is not used remove it. 3685e705c121SKalle Valo */ 3686e705c121SKalle Valo ret = iwl_mvm_binding_remove_vif(mvm, vif); 3687e705c121SKalle Valo if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 3688e705c121SKalle Valo goto out_unlock; 3689e705c121SKalle Valo 3690e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 3691e705c121SKalle Valo 3692e705c121SKalle Valo /* Bind the P2P_DEVICE to the current PHY Context */ 3693e705c121SKalle Valo mvmvif->phy_ctxt = phy_ctxt; 3694e705c121SKalle Valo 3695e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 3696e705c121SKalle Valo if (WARN(ret, "Failed binding P2P_DEVICE\n")) 3697e705c121SKalle Valo goto out_unlock; 3698e705c121SKalle Valo 3699e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 3700e705c121SKalle Valo goto schedule_time_event; 3701e705c121SKalle Valo } 3702e705c121SKalle Valo } 3703e705c121SKalle Valo 3704e705c121SKalle Valo /* Need to update the PHY context only if the ROC channel changed */ 3705e705c121SKalle Valo if (channel == mvmvif->phy_ctxt->channel) 3706e705c121SKalle Valo goto schedule_time_event; 3707e705c121SKalle Valo 3708e705c121SKalle Valo cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 3709e705c121SKalle Valo 3710e705c121SKalle Valo /* 3711e705c121SKalle Valo * Change the PHY context configuration as it is currently referenced 3712e705c121SKalle Valo * only by the P2P Device MAC 3713e705c121SKalle Valo */ 3714e705c121SKalle Valo if (mvmvif->phy_ctxt->ref == 1) { 3715e705c121SKalle Valo ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, 3716e705c121SKalle Valo &chandef, 1, 1); 3717e705c121SKalle Valo if (ret) 3718e705c121SKalle Valo goto out_unlock; 3719e705c121SKalle Valo } else { 3720e705c121SKalle Valo /* 3721e705c121SKalle Valo * The PHY context is shared with other MACs. Need to remove the 3722e705c121SKalle Valo * P2P Device from the binding, allocate an new PHY context and 3723e705c121SKalle Valo * create a new binding 3724e705c121SKalle Valo */ 3725e705c121SKalle Valo phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 3726e705c121SKalle Valo if (!phy_ctxt) { 3727e705c121SKalle Valo ret = -ENOSPC; 3728e705c121SKalle Valo goto out_unlock; 3729e705c121SKalle Valo } 3730e705c121SKalle Valo 3731e705c121SKalle Valo ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 3732e705c121SKalle Valo 1, 1); 3733e705c121SKalle Valo if (ret) { 3734e705c121SKalle Valo IWL_ERR(mvm, "Failed to change PHY context\n"); 3735e705c121SKalle Valo goto out_unlock; 3736e705c121SKalle Valo } 3737e705c121SKalle Valo 3738e705c121SKalle Valo /* Unbind the P2P_DEVICE from the current PHY context */ 3739e705c121SKalle Valo ret = iwl_mvm_binding_remove_vif(mvm, vif); 3740e705c121SKalle Valo if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 3741e705c121SKalle Valo goto out_unlock; 3742e705c121SKalle Valo 3743e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 3744e705c121SKalle Valo 3745e705c121SKalle Valo /* Bind the P2P_DEVICE to the new allocated PHY context */ 3746e705c121SKalle Valo mvmvif->phy_ctxt = phy_ctxt; 3747e705c121SKalle Valo 3748e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 3749e705c121SKalle Valo if (WARN(ret, "Failed binding P2P_DEVICE\n")) 3750e705c121SKalle Valo goto out_unlock; 3751e705c121SKalle Valo 3752e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 3753e705c121SKalle Valo } 3754e705c121SKalle Valo 3755e705c121SKalle Valo schedule_time_event: 3756e705c121SKalle Valo /* Schedule the time events */ 3757e705c121SKalle Valo ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 3758e705c121SKalle Valo 3759e705c121SKalle Valo out_unlock: 3760e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3761e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "leave\n"); 3762e705c121SKalle Valo return ret; 3763e705c121SKalle Valo } 3764e705c121SKalle Valo 3765e705c121SKalle Valo static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) 3766e705c121SKalle Valo { 3767e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3768e705c121SKalle Valo 3769e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "enter\n"); 3770e705c121SKalle Valo 3771e705c121SKalle Valo mutex_lock(&mvm->mutex); 3772e705c121SKalle Valo iwl_mvm_stop_roc(mvm); 3773e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3774e705c121SKalle Valo 3775e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "leave\n"); 3776e705c121SKalle Valo return 0; 3777e705c121SKalle Valo } 3778e705c121SKalle Valo 3779e705c121SKalle Valo static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 3780e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3781e705c121SKalle Valo { 3782e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3783e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt; 3784e705c121SKalle Valo int ret; 3785e705c121SKalle Valo 3786e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3787e705c121SKalle Valo 3788e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 3789e705c121SKalle Valo 3790e705c121SKalle Valo phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 3791e705c121SKalle Valo if (!phy_ctxt) { 3792e705c121SKalle Valo ret = -ENOSPC; 3793e705c121SKalle Valo goto out; 3794e705c121SKalle Valo } 3795e705c121SKalle Valo 3796e705c121SKalle Valo ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, 3797e705c121SKalle Valo ctx->rx_chains_static, 3798e705c121SKalle Valo ctx->rx_chains_dynamic); 3799e705c121SKalle Valo if (ret) { 3800e705c121SKalle Valo IWL_ERR(mvm, "Failed to add PHY context\n"); 3801e705c121SKalle Valo goto out; 3802e705c121SKalle Valo } 3803e705c121SKalle Valo 3804e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 3805e705c121SKalle Valo *phy_ctxt_id = phy_ctxt->id; 3806e705c121SKalle Valo out: 3807e705c121SKalle Valo return ret; 3808e705c121SKalle Valo } 3809e705c121SKalle Valo 3810e705c121SKalle Valo static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 3811e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3812e705c121SKalle Valo { 3813e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3814e705c121SKalle Valo int ret; 3815e705c121SKalle Valo 3816e705c121SKalle Valo mutex_lock(&mvm->mutex); 3817e705c121SKalle Valo ret = __iwl_mvm_add_chanctx(mvm, ctx); 3818e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3819e705c121SKalle Valo 3820e705c121SKalle Valo return ret; 3821e705c121SKalle Valo } 3822e705c121SKalle Valo 3823e705c121SKalle Valo static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 3824e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3825e705c121SKalle Valo { 3826e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3827e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3828e705c121SKalle Valo 3829e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3830e705c121SKalle Valo 3831e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 3832e705c121SKalle Valo } 3833e705c121SKalle Valo 3834e705c121SKalle Valo static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 3835e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3836e705c121SKalle Valo { 3837e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3838e705c121SKalle Valo 3839e705c121SKalle Valo mutex_lock(&mvm->mutex); 3840e705c121SKalle Valo __iwl_mvm_remove_chanctx(mvm, ctx); 3841e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3842e705c121SKalle Valo } 3843e705c121SKalle Valo 3844e705c121SKalle Valo static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 3845e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx, 3846e705c121SKalle Valo u32 changed) 3847e705c121SKalle Valo { 3848e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3849e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3850e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3851e705c121SKalle Valo 3852e705c121SKalle Valo if (WARN_ONCE((phy_ctxt->ref > 1) && 3853e705c121SKalle Valo (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 3854e705c121SKalle Valo IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 3855e705c121SKalle Valo IEEE80211_CHANCTX_CHANGE_RADAR | 3856e705c121SKalle Valo IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 3857e705c121SKalle Valo "Cannot change PHY. Ref=%d, changed=0x%X\n", 3858e705c121SKalle Valo phy_ctxt->ref, changed)) 3859e705c121SKalle Valo return; 3860e705c121SKalle Valo 3861e705c121SKalle Valo mutex_lock(&mvm->mutex); 38627a20bcceSEmmanuel Grumbach 38637a20bcceSEmmanuel Grumbach /* we are only changing the min_width, may be a noop */ 38647a20bcceSEmmanuel Grumbach if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 38657a20bcceSEmmanuel Grumbach if (phy_ctxt->width == ctx->min_def.width) 38667a20bcceSEmmanuel Grumbach goto out_unlock; 38677a20bcceSEmmanuel Grumbach 38687a20bcceSEmmanuel Grumbach /* we are just toggling between 20_NOHT and 20 */ 38697a20bcceSEmmanuel Grumbach if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 38707a20bcceSEmmanuel Grumbach ctx->min_def.width <= NL80211_CHAN_WIDTH_20) 38717a20bcceSEmmanuel Grumbach goto out_unlock; 38727a20bcceSEmmanuel Grumbach } 38737a20bcceSEmmanuel Grumbach 3874e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 3875e705c121SKalle Valo iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, 3876e705c121SKalle Valo ctx->rx_chains_static, 3877e705c121SKalle Valo ctx->rx_chains_dynamic); 38787a20bcceSEmmanuel Grumbach 38797a20bcceSEmmanuel Grumbach out_unlock: 3880e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3881e705c121SKalle Valo } 3882e705c121SKalle Valo 3883e705c121SKalle Valo static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 3884e705c121SKalle Valo struct ieee80211_vif *vif, 3885e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx, 3886e705c121SKalle Valo bool switching_chanctx) 3887e705c121SKalle Valo { 3888e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3889e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3890e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3891e705c121SKalle Valo int ret; 3892e705c121SKalle Valo 3893e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3894e705c121SKalle Valo 3895e705c121SKalle Valo mvmvif->phy_ctxt = phy_ctxt; 3896e705c121SKalle Valo 3897e705c121SKalle Valo switch (vif->type) { 3898e705c121SKalle Valo case NL80211_IFTYPE_AP: 3899e705c121SKalle Valo /* only needed if we're switching chanctx (i.e. during CSA) */ 3900e705c121SKalle Valo if (switching_chanctx) { 3901e705c121SKalle Valo mvmvif->ap_ibss_active = true; 3902e705c121SKalle Valo break; 3903e705c121SKalle Valo } 3904244726ecSLuca Coelho /* fall through */ 3905e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 3906e705c121SKalle Valo /* 3907e705c121SKalle Valo * The AP binding flow is handled as part of the start_ap flow 3908e705c121SKalle Valo * (in bss_info_changed), similarly for IBSS. 3909e705c121SKalle Valo */ 3910e705c121SKalle Valo ret = 0; 3911e705c121SKalle Valo goto out; 3912e705c121SKalle Valo case NL80211_IFTYPE_STATION: 391319125cb0SAndrei Otcheretianski mvmvif->csa_bcn_pending = false; 3914e705c121SKalle Valo break; 3915e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 3916e705c121SKalle Valo /* always disable PS when a monitor interface is active */ 3917e705c121SKalle Valo mvmvif->ps_disabled = true; 3918e705c121SKalle Valo break; 3919e705c121SKalle Valo default: 3920e705c121SKalle Valo ret = -EINVAL; 3921e705c121SKalle Valo goto out; 3922e705c121SKalle Valo } 3923e705c121SKalle Valo 3924e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 3925e705c121SKalle Valo if (ret) 3926e705c121SKalle Valo goto out; 3927e705c121SKalle Valo 3928e705c121SKalle Valo /* 3929e705c121SKalle Valo * Power state must be updated before quotas, 3930e705c121SKalle Valo * otherwise fw will complain. 3931e705c121SKalle Valo */ 3932e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 3933e705c121SKalle Valo 3934e705c121SKalle Valo /* Setting the quota at this stage is only required for monitor 3935e705c121SKalle Valo * interfaces. For the other types, the bss_info changed flow 3936e705c121SKalle Valo * will handle quota settings. 3937e705c121SKalle Valo */ 3938e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_MONITOR) { 3939e705c121SKalle Valo mvmvif->monitor_active = true; 3940e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, false, NULL); 3941e705c121SKalle Valo if (ret) 3942e705c121SKalle Valo goto out_remove_binding; 39430e39eb03SChaya Rachel Ivgi 39440e39eb03SChaya Rachel Ivgi ret = iwl_mvm_add_snif_sta(mvm, vif); 39450e39eb03SChaya Rachel Ivgi if (ret) 39460e39eb03SChaya Rachel Ivgi goto out_remove_binding; 39470e39eb03SChaya Rachel Ivgi 3948e705c121SKalle Valo } 3949e705c121SKalle Valo 3950e705c121SKalle Valo /* Handle binding during CSA */ 3951e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP) { 3952e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, NULL); 3953e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3954e705c121SKalle Valo } 3955e705c121SKalle Valo 3956e705c121SKalle Valo if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { 395774a10252SSara Sharon mvmvif->csa_bcn_pending = true; 395874a10252SSara Sharon 395974a10252SSara Sharon if (!fw_has_capa(&mvm->fw->ucode_capa, 396074a10252SSara Sharon IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 396119125cb0SAndrei Otcheretianski u32 duration = 3 * vif->bss_conf.beacon_int; 3962e705c121SKalle Valo 396374a10252SSara Sharon 3964e705c121SKalle Valo /* iwl_mvm_protect_session() reads directly from the 3965e705c121SKalle Valo * device (the system time), so make sure it is 3966e705c121SKalle Valo * available. 3967e705c121SKalle Valo */ 3968e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA); 3969e705c121SKalle Valo if (ret) 3970e705c121SKalle Valo goto out_remove_binding; 3971e705c121SKalle Valo 3972e705c121SKalle Valo /* Protect the session to make sure we hear the first 3973e705c121SKalle Valo * beacon on the new channel. 3974e705c121SKalle Valo */ 3975e705c121SKalle Valo iwl_mvm_protect_session(mvm, vif, duration, duration, 3976e705c121SKalle Valo vif->bss_conf.beacon_int / 2, 3977e705c121SKalle Valo true); 3978e705c121SKalle Valo 3979e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA); 398074a10252SSara Sharon } 3981e705c121SKalle Valo 3982e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, NULL); 3983e705c121SKalle Valo } 3984e705c121SKalle Valo 3985e705c121SKalle Valo goto out; 3986e705c121SKalle Valo 3987e705c121SKalle Valo out_remove_binding: 3988e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 3989e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 3990e705c121SKalle Valo out: 3991e705c121SKalle Valo if (ret) 3992e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 3993e705c121SKalle Valo return ret; 3994e705c121SKalle Valo } 3995e705c121SKalle Valo static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 3996e705c121SKalle Valo struct ieee80211_vif *vif, 3997e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3998e705c121SKalle Valo { 3999e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4000e705c121SKalle Valo int ret; 4001e705c121SKalle Valo 4002e705c121SKalle Valo mutex_lock(&mvm->mutex); 4003e705c121SKalle Valo ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); 4004e705c121SKalle Valo mutex_unlock(&mvm->mutex); 4005e705c121SKalle Valo 4006e705c121SKalle Valo return ret; 4007e705c121SKalle Valo } 4008e705c121SKalle Valo 4009e705c121SKalle Valo static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 4010e705c121SKalle Valo struct ieee80211_vif *vif, 4011e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx, 4012e705c121SKalle Valo bool switching_chanctx) 4013e705c121SKalle Valo { 4014e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4015e705c121SKalle Valo struct ieee80211_vif *disabled_vif = NULL; 4016e705c121SKalle Valo 4017e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 4018e705c121SKalle Valo 4019e705c121SKalle Valo iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); 4020e705c121SKalle Valo 4021e705c121SKalle Valo switch (vif->type) { 4022e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 4023e705c121SKalle Valo goto out; 4024e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 4025e705c121SKalle Valo mvmvif->monitor_active = false; 4026e705c121SKalle Valo mvmvif->ps_disabled = false; 40270e39eb03SChaya Rachel Ivgi iwl_mvm_rm_snif_sta(mvm, vif); 4028e705c121SKalle Valo break; 4029e705c121SKalle Valo case NL80211_IFTYPE_AP: 4030e705c121SKalle Valo /* This part is triggered only during CSA */ 4031e705c121SKalle Valo if (!switching_chanctx || !mvmvif->ap_ibss_active) 4032e705c121SKalle Valo goto out; 4033e705c121SKalle Valo 4034e705c121SKalle Valo mvmvif->csa_countdown = false; 4035e705c121SKalle Valo 4036e705c121SKalle Valo /* Set CS bit on all the stations */ 4037e705c121SKalle Valo iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 4038e705c121SKalle Valo 4039e705c121SKalle Valo /* Save blocked iface, the timeout is set on the next beacon */ 4040e705c121SKalle Valo rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 4041e705c121SKalle Valo 4042e705c121SKalle Valo mvmvif->ap_ibss_active = false; 4043e705c121SKalle Valo break; 4044e705c121SKalle Valo case NL80211_IFTYPE_STATION: 4045e705c121SKalle Valo if (!switching_chanctx) 4046e705c121SKalle Valo break; 4047e705c121SKalle Valo 4048e705c121SKalle Valo disabled_vif = vif; 4049e705c121SKalle Valo 405074a10252SSara Sharon if (!fw_has_capa(&mvm->fw->ucode_capa, 405174a10252SSara Sharon IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 4052e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 4053e705c121SKalle Valo break; 4054e705c121SKalle Valo default: 4055e705c121SKalle Valo break; 4056e705c121SKalle Valo } 4057e705c121SKalle Valo 4058e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, disabled_vif); 4059e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 4060e705c121SKalle Valo 4061e705c121SKalle Valo out: 4062e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 4063e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 4064e705c121SKalle Valo } 4065e705c121SKalle Valo 4066e705c121SKalle Valo static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 4067e705c121SKalle Valo struct ieee80211_vif *vif, 4068e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 4069e705c121SKalle Valo { 4070e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4071e705c121SKalle Valo 4072e705c121SKalle Valo mutex_lock(&mvm->mutex); 4073e705c121SKalle Valo __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); 4074e705c121SKalle Valo mutex_unlock(&mvm->mutex); 4075e705c121SKalle Valo } 4076e705c121SKalle Valo 4077e705c121SKalle Valo static int 4078e705c121SKalle Valo iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 4079e705c121SKalle Valo struct ieee80211_vif_chanctx_switch *vifs) 4080e705c121SKalle Valo { 4081e705c121SKalle Valo int ret; 4082e705c121SKalle Valo 4083e705c121SKalle Valo mutex_lock(&mvm->mutex); 4084e705c121SKalle Valo __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4085e705c121SKalle Valo __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 4086e705c121SKalle Valo 4087e705c121SKalle Valo ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 4088e705c121SKalle Valo if (ret) { 4089e705c121SKalle Valo IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 4090e705c121SKalle Valo goto out_reassign; 4091e705c121SKalle Valo } 4092e705c121SKalle Valo 4093e705c121SKalle Valo ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4094e705c121SKalle Valo true); 4095e705c121SKalle Valo if (ret) { 4096e705c121SKalle Valo IWL_ERR(mvm, 4097e705c121SKalle Valo "failed to assign new_ctx during channel switch\n"); 4098e705c121SKalle Valo goto out_remove; 4099e705c121SKalle Valo } 4100e705c121SKalle Valo 4101e705c121SKalle Valo /* we don't support TDLS during DCM - can be caused by channel switch */ 4102e705c121SKalle Valo if (iwl_mvm_phy_ctx_count(mvm) > 1) 4103e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 4104e705c121SKalle Valo 4105e705c121SKalle Valo goto out; 4106e705c121SKalle Valo 4107e705c121SKalle Valo out_remove: 4108e705c121SKalle Valo __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 4109e705c121SKalle Valo 4110e705c121SKalle Valo out_reassign: 4111e705c121SKalle Valo if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 4112e705c121SKalle Valo IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 4113e705c121SKalle Valo goto out_restart; 4114e705c121SKalle Valo } 4115e705c121SKalle Valo 4116e705c121SKalle Valo if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4117e705c121SKalle Valo true)) { 4118e705c121SKalle Valo IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4119e705c121SKalle Valo goto out_restart; 4120e705c121SKalle Valo } 4121e705c121SKalle Valo 4122e705c121SKalle Valo goto out; 4123e705c121SKalle Valo 4124e705c121SKalle Valo out_restart: 4125e705c121SKalle Valo /* things keep failing, better restart the hw */ 4126e705c121SKalle Valo iwl_mvm_nic_restart(mvm, false); 4127e705c121SKalle Valo 4128e705c121SKalle Valo out: 4129e705c121SKalle Valo mutex_unlock(&mvm->mutex); 4130e705c121SKalle Valo 4131e705c121SKalle Valo return ret; 4132e705c121SKalle Valo } 4133e705c121SKalle Valo 4134e705c121SKalle Valo static int 4135e705c121SKalle Valo iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 4136e705c121SKalle Valo struct ieee80211_vif_chanctx_switch *vifs) 4137e705c121SKalle Valo { 4138e705c121SKalle Valo int ret; 4139e705c121SKalle Valo 4140e705c121SKalle Valo mutex_lock(&mvm->mutex); 4141e705c121SKalle Valo __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4142e705c121SKalle Valo 4143e705c121SKalle Valo ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4144e705c121SKalle Valo true); 4145e705c121SKalle Valo if (ret) { 4146e705c121SKalle Valo IWL_ERR(mvm, 4147e705c121SKalle Valo "failed to assign new_ctx during channel switch\n"); 4148e705c121SKalle Valo goto out_reassign; 4149e705c121SKalle Valo } 4150e705c121SKalle Valo 4151e705c121SKalle Valo goto out; 4152e705c121SKalle Valo 4153e705c121SKalle Valo out_reassign: 4154e705c121SKalle Valo if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4155e705c121SKalle Valo true)) { 4156e705c121SKalle Valo IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4157e705c121SKalle Valo goto out_restart; 4158e705c121SKalle Valo } 4159e705c121SKalle Valo 4160e705c121SKalle Valo goto out; 4161e705c121SKalle Valo 4162e705c121SKalle Valo out_restart: 4163e705c121SKalle Valo /* things keep failing, better restart the hw */ 4164e705c121SKalle Valo iwl_mvm_nic_restart(mvm, false); 4165e705c121SKalle Valo 4166e705c121SKalle Valo out: 4167e705c121SKalle Valo mutex_unlock(&mvm->mutex); 4168e705c121SKalle Valo 4169e705c121SKalle Valo return ret; 4170e705c121SKalle Valo } 4171e705c121SKalle Valo 4172e705c121SKalle Valo static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 4173e705c121SKalle Valo struct ieee80211_vif_chanctx_switch *vifs, 4174e705c121SKalle Valo int n_vifs, 4175e705c121SKalle Valo enum ieee80211_chanctx_switch_mode mode) 4176e705c121SKalle Valo { 4177e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4178e705c121SKalle Valo int ret; 4179e705c121SKalle Valo 4180e705c121SKalle Valo /* we only support a single-vif right now */ 4181e705c121SKalle Valo if (n_vifs > 1) 4182e705c121SKalle Valo return -EOPNOTSUPP; 4183e705c121SKalle Valo 4184e705c121SKalle Valo switch (mode) { 4185e705c121SKalle Valo case CHANCTX_SWMODE_SWAP_CONTEXTS: 4186e705c121SKalle Valo ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); 4187e705c121SKalle Valo break; 4188e705c121SKalle Valo case CHANCTX_SWMODE_REASSIGN_VIF: 4189e705c121SKalle Valo ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); 4190e705c121SKalle Valo break; 4191e705c121SKalle Valo default: 4192e705c121SKalle Valo ret = -EOPNOTSUPP; 4193e705c121SKalle Valo break; 4194e705c121SKalle Valo } 4195e705c121SKalle Valo 4196e705c121SKalle Valo return ret; 4197e705c121SKalle Valo } 4198e705c121SKalle Valo 41992f0282dbSJohannes Berg static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 42002f0282dbSJohannes Berg { 42012f0282dbSJohannes Berg struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 42022f0282dbSJohannes Berg 42032f0282dbSJohannes Berg return mvm->ibss_manager; 42042f0282dbSJohannes Berg } 42052f0282dbSJohannes Berg 4206e705c121SKalle Valo static int iwl_mvm_set_tim(struct ieee80211_hw *hw, 4207e705c121SKalle Valo struct ieee80211_sta *sta, 4208e705c121SKalle Valo bool set) 4209e705c121SKalle Valo { 4210e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4211e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4212e705c121SKalle Valo 4213e705c121SKalle Valo if (!mvm_sta || !mvm_sta->vif) { 4214e705c121SKalle Valo IWL_ERR(mvm, "Station is not associated to a vif\n"); 4215e705c121SKalle Valo return -EINVAL; 4216e705c121SKalle Valo } 4217e705c121SKalle Valo 4218e705c121SKalle Valo return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); 4219e705c121SKalle Valo } 4220e705c121SKalle Valo 4221e705c121SKalle Valo #ifdef CONFIG_NL80211_TESTMODE 4222e705c121SKalle Valo static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 4223e705c121SKalle Valo [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 4224e705c121SKalle Valo [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 4225e705c121SKalle Valo [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 4226e705c121SKalle Valo }; 4227e705c121SKalle Valo 4228e705c121SKalle Valo static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 4229e705c121SKalle Valo struct ieee80211_vif *vif, 4230e705c121SKalle Valo void *data, int len) 4231e705c121SKalle Valo { 4232e705c121SKalle Valo struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 4233e705c121SKalle Valo int err; 4234e705c121SKalle Valo u32 noa_duration; 4235e705c121SKalle Valo 4236fceb6435SJohannes Berg err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy, 4237fceb6435SJohannes Berg NULL); 4238e705c121SKalle Valo if (err) 4239e705c121SKalle Valo return err; 4240e705c121SKalle Valo 4241e705c121SKalle Valo if (!tb[IWL_MVM_TM_ATTR_CMD]) 4242e705c121SKalle Valo return -EINVAL; 4243e705c121SKalle Valo 4244e705c121SKalle Valo switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 4245e705c121SKalle Valo case IWL_MVM_TM_CMD_SET_NOA: 4246e705c121SKalle Valo if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 4247e705c121SKalle Valo !vif->bss_conf.enable_beacon || 4248e705c121SKalle Valo !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 4249e705c121SKalle Valo return -EINVAL; 4250e705c121SKalle Valo 4251e705c121SKalle Valo noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 4252e705c121SKalle Valo if (noa_duration >= vif->bss_conf.beacon_int) 4253e705c121SKalle Valo return -EINVAL; 4254e705c121SKalle Valo 4255e705c121SKalle Valo mvm->noa_duration = noa_duration; 4256e705c121SKalle Valo mvm->noa_vif = vif; 4257e705c121SKalle Valo 425822b21041SShaul Triebitz return iwl_mvm_update_quotas(mvm, true, NULL); 4259e705c121SKalle Valo case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 4260e705c121SKalle Valo /* must be associated client vif - ignore authorized */ 4261e705c121SKalle Valo if (!vif || vif->type != NL80211_IFTYPE_STATION || 4262e705c121SKalle Valo !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || 4263e705c121SKalle Valo !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 4264e705c121SKalle Valo return -EINVAL; 4265e705c121SKalle Valo 4266e705c121SKalle Valo if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 4267e705c121SKalle Valo return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 4268e705c121SKalle Valo return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4269e705c121SKalle Valo } 4270e705c121SKalle Valo 4271e705c121SKalle Valo return -EOPNOTSUPP; 4272e705c121SKalle Valo } 4273e705c121SKalle Valo 4274e705c121SKalle Valo static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 4275e705c121SKalle Valo struct ieee80211_vif *vif, 4276e705c121SKalle Valo void *data, int len) 4277e705c121SKalle Valo { 4278e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4279e705c121SKalle Valo int err; 4280e705c121SKalle Valo 4281e705c121SKalle Valo mutex_lock(&mvm->mutex); 4282e705c121SKalle Valo err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 4283e705c121SKalle Valo mutex_unlock(&mvm->mutex); 4284e705c121SKalle Valo 4285e705c121SKalle Valo return err; 4286e705c121SKalle Valo } 4287e705c121SKalle Valo #endif 4288e705c121SKalle Valo 4289e705c121SKalle Valo static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, 4290e705c121SKalle Valo struct ieee80211_vif *vif, 4291e705c121SKalle Valo struct ieee80211_channel_switch *chsw) 4292e705c121SKalle Valo { 4293e705c121SKalle Valo /* By implementing this operation, we prevent mac80211 from 4294e705c121SKalle Valo * starting its own channel switch timer, so that we can call 4295e705c121SKalle Valo * ieee80211_chswitch_done() ourselves at the right time 4296e705c121SKalle Valo * (which is when the absence time event starts). 4297e705c121SKalle Valo */ 4298e705c121SKalle Valo 4299e705c121SKalle Valo IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 4300e705c121SKalle Valo "dummy channel switch op\n"); 4301e705c121SKalle Valo } 4302e705c121SKalle Valo 430374a10252SSara Sharon static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 430474a10252SSara Sharon struct ieee80211_vif *vif, 430574a10252SSara Sharon struct ieee80211_channel_switch *chsw) 430674a10252SSara Sharon { 430774a10252SSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 430874a10252SSara Sharon struct iwl_chan_switch_te_cmd cmd = { 430974a10252SSara Sharon .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 431074a10252SSara Sharon mvmvif->color)), 431174a10252SSara Sharon .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 431274a10252SSara Sharon .tsf = cpu_to_le32(chsw->timestamp), 431374a10252SSara Sharon .cs_count = chsw->count, 431474a10252SSara Sharon }; 431574a10252SSara Sharon 431674a10252SSara Sharon lockdep_assert_held(&mvm->mutex); 431774a10252SSara Sharon 431874a10252SSara Sharon return iwl_mvm_send_cmd_pdu(mvm, 431974a10252SSara Sharon WIDE_ID(MAC_CONF_GROUP, 432074a10252SSara Sharon CHANNEL_SWITCH_TIME_EVENT_CMD), 432174a10252SSara Sharon 0, sizeof(cmd), &cmd); 432274a10252SSara Sharon } 432374a10252SSara Sharon 4324e705c121SKalle Valo static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 4325e705c121SKalle Valo struct ieee80211_vif *vif, 4326e705c121SKalle Valo struct ieee80211_channel_switch *chsw) 4327e705c121SKalle Valo { 4328e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4329e705c121SKalle Valo struct ieee80211_vif *csa_vif; 4330e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4331e705c121SKalle Valo u32 apply_time; 4332e705c121SKalle Valo int ret; 4333e705c121SKalle Valo 4334e705c121SKalle Valo mutex_lock(&mvm->mutex); 4335e705c121SKalle Valo 4336e705c121SKalle Valo mvmvif->csa_failed = false; 4337e705c121SKalle Valo 4338e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 4339e705c121SKalle Valo chsw->chandef.center_freq1); 4340e705c121SKalle Valo 43417174beb6SJohannes Berg iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 43427174beb6SJohannes Berg ieee80211_vif_to_wdev(vif), 43437174beb6SJohannes Berg FW_DBG_TRIGGER_CHANNEL_SWITCH); 4344e705c121SKalle Valo 4345e705c121SKalle Valo switch (vif->type) { 4346e705c121SKalle Valo case NL80211_IFTYPE_AP: 4347e705c121SKalle Valo csa_vif = 4348e705c121SKalle Valo rcu_dereference_protected(mvm->csa_vif, 4349e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 4350e705c121SKalle Valo if (WARN_ONCE(csa_vif && csa_vif->csa_active, 4351e705c121SKalle Valo "Another CSA is already in progress")) { 4352e705c121SKalle Valo ret = -EBUSY; 4353e705c121SKalle Valo goto out_unlock; 4354e705c121SKalle Valo } 4355e705c121SKalle Valo 4356d3a108a4SAndrei Otcheretianski /* we still didn't unblock tx. prevent new CS meanwhile */ 4357d3a108a4SAndrei Otcheretianski if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 4358d3a108a4SAndrei Otcheretianski lockdep_is_held(&mvm->mutex))) { 4359d3a108a4SAndrei Otcheretianski ret = -EBUSY; 4360d3a108a4SAndrei Otcheretianski goto out_unlock; 4361d3a108a4SAndrei Otcheretianski } 4362d3a108a4SAndrei Otcheretianski 4363e705c121SKalle Valo rcu_assign_pointer(mvm->csa_vif, vif); 4364e705c121SKalle Valo 4365e705c121SKalle Valo if (WARN_ONCE(mvmvif->csa_countdown, 4366e705c121SKalle Valo "Previous CSA countdown didn't complete")) { 4367e705c121SKalle Valo ret = -EBUSY; 4368e705c121SKalle Valo goto out_unlock; 4369e705c121SKalle Valo } 4370e705c121SKalle Valo 4371d3a108a4SAndrei Otcheretianski mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 4372d3a108a4SAndrei Otcheretianski 4373e705c121SKalle Valo break; 4374e705c121SKalle Valo case NL80211_IFTYPE_STATION: 4375e705c121SKalle Valo /* Schedule the time event to a bit before beacon 1, 4376e705c121SKalle Valo * to make sure we're in the new channel when the 4377f5d8f50fSIlan Peer * GO/AP arrives. In case count <= 1 immediately schedule the 4378f5d8f50fSIlan Peer * TE (this might result with some packet loss or connection 4379f5d8f50fSIlan Peer * loss). 4380e705c121SKalle Valo */ 4381f5d8f50fSIlan Peer if (chsw->count <= 1) 4382f5d8f50fSIlan Peer apply_time = 0; 4383f5d8f50fSIlan Peer else 4384e705c121SKalle Valo apply_time = chsw->device_timestamp + 4385e705c121SKalle Valo ((vif->bss_conf.beacon_int * (chsw->count - 1) - 4386e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 4387e705c121SKalle Valo 4388e705c121SKalle Valo if (chsw->block_tx) 4389e705c121SKalle Valo iwl_mvm_csa_client_absent(mvm, vif); 4390e705c121SKalle Valo 4391e705c121SKalle Valo if (mvmvif->bf_data.bf_enabled) { 4392e705c121SKalle Valo ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4393e705c121SKalle Valo if (ret) 4394e705c121SKalle Valo goto out_unlock; 4395e705c121SKalle Valo } 4396e705c121SKalle Valo 439774a10252SSara Sharon if (fw_has_capa(&mvm->fw->ucode_capa, 439874a10252SSara Sharon IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 439974a10252SSara Sharon iwl_mvm_schedule_client_csa(mvm, vif, chsw); 440074a10252SSara Sharon else 440174a10252SSara Sharon iwl_mvm_schedule_csa_period(mvm, vif, 440274a10252SSara Sharon vif->bss_conf.beacon_int, 440374a10252SSara Sharon apply_time); 4404e705c121SKalle Valo break; 4405e705c121SKalle Valo default: 4406e705c121SKalle Valo break; 4407e705c121SKalle Valo } 4408e705c121SKalle Valo 4409e705c121SKalle Valo mvmvif->ps_disabled = true; 4410e705c121SKalle Valo 4411e705c121SKalle Valo ret = iwl_mvm_power_update_ps(mvm); 4412e705c121SKalle Valo if (ret) 4413e705c121SKalle Valo goto out_unlock; 4414e705c121SKalle Valo 4415e705c121SKalle Valo /* we won't be on this channel any longer */ 4416e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 4417e705c121SKalle Valo 4418e705c121SKalle Valo out_unlock: 4419e705c121SKalle Valo mutex_unlock(&mvm->mutex); 4420e705c121SKalle Valo 4421e705c121SKalle Valo return ret; 4422e705c121SKalle Valo } 4423e705c121SKalle Valo 4424e705c121SKalle Valo static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 4425e705c121SKalle Valo struct ieee80211_vif *vif) 4426e705c121SKalle Valo { 4427e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4428e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4429e705c121SKalle Valo int ret; 4430e705c121SKalle Valo 4431e705c121SKalle Valo mutex_lock(&mvm->mutex); 4432e705c121SKalle Valo 4433e705c121SKalle Valo if (mvmvif->csa_failed) { 4434e705c121SKalle Valo mvmvif->csa_failed = false; 4435e705c121SKalle Valo ret = -EIO; 4436e705c121SKalle Valo goto out_unlock; 4437e705c121SKalle Valo } 4438e705c121SKalle Valo 4439e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) { 4440e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 4441e705c121SKalle Valo 444219125cb0SAndrei Otcheretianski mvmvif->csa_bcn_pending = false; 4443e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 4444e705c121SKalle Valo mvmvif->ap_sta_id); 4445e705c121SKalle Valo 4446e705c121SKalle Valo if (WARN_ON(!mvmsta)) { 4447e705c121SKalle Valo ret = -EIO; 4448e705c121SKalle Valo goto out_unlock; 4449e705c121SKalle Valo } 4450e705c121SKalle Valo 4451e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 4452e705c121SKalle Valo 4453e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4454e705c121SKalle Valo 4455e705c121SKalle Valo ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 4456e705c121SKalle Valo if (ret) 4457e705c121SKalle Valo goto out_unlock; 4458e705c121SKalle Valo 4459e705c121SKalle Valo iwl_mvm_stop_session_protection(mvm, vif); 4460e705c121SKalle Valo } 4461e705c121SKalle Valo 4462e705c121SKalle Valo mvmvif->ps_disabled = false; 4463e705c121SKalle Valo 4464e705c121SKalle Valo ret = iwl_mvm_power_update_ps(mvm); 4465e705c121SKalle Valo 4466e705c121SKalle Valo out_unlock: 4467e705c121SKalle Valo mutex_unlock(&mvm->mutex); 4468e705c121SKalle Valo 4469e705c121SKalle Valo return ret; 4470e705c121SKalle Valo } 4471e705c121SKalle Valo 44726110d9e5SDavid Spinadel static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 44736110d9e5SDavid Spinadel { 4474435d0827SSara Sharon int i; 4475435d0827SSara Sharon 447606195639SSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) { 4477309c4848SLuca Coelho if (drop) { 4478309c4848SLuca Coelho mutex_lock(&mvm->mutex); 44796110d9e5SDavid Spinadel iwl_mvm_flush_tx_path(mvm, 4480435d0827SSara Sharon iwl_mvm_flushable_queues(mvm) & queues, 0); 4481309c4848SLuca Coelho mutex_unlock(&mvm->mutex); 4482309c4848SLuca Coelho } else { 4483435d0827SSara Sharon iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 4484309c4848SLuca Coelho } 4485435d0827SSara Sharon return; 4486435d0827SSara Sharon } 44876110d9e5SDavid Spinadel 44886110d9e5SDavid Spinadel mutex_lock(&mvm->mutex); 44896110d9e5SDavid Spinadel for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 4490435d0827SSara Sharon struct ieee80211_sta *sta; 4491435d0827SSara Sharon 4492435d0827SSara Sharon sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 44936110d9e5SDavid Spinadel lockdep_is_held(&mvm->mutex)); 44946110d9e5SDavid Spinadel if (IS_ERR_OR_NULL(sta)) 44956110d9e5SDavid Spinadel continue; 44966110d9e5SDavid Spinadel 449706195639SSara Sharon if (drop) 449806195639SSara Sharon iwl_mvm_flush_sta_tids(mvm, i, 0xFF, 0); 449906195639SSara Sharon else 45006110d9e5SDavid Spinadel iwl_mvm_wait_sta_queues_empty(mvm, 45016110d9e5SDavid Spinadel iwl_mvm_sta_from_mac80211(sta)); 45026110d9e5SDavid Spinadel } 45036110d9e5SDavid Spinadel mutex_unlock(&mvm->mutex); 45046110d9e5SDavid Spinadel } 45056110d9e5SDavid Spinadel 4506e705c121SKalle Valo static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, 4507e705c121SKalle Valo struct ieee80211_vif *vif, u32 queues, bool drop) 4508e705c121SKalle Valo { 4509e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4510e705c121SKalle Valo struct iwl_mvm_vif *mvmvif; 4511e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 4512e705c121SKalle Valo struct ieee80211_sta *sta; 4513e705c121SKalle Valo int i; 4514e705c121SKalle Valo u32 msk = 0; 4515e705c121SKalle Valo 45166110d9e5SDavid Spinadel if (!vif) { 45176110d9e5SDavid Spinadel iwl_mvm_flush_no_vif(mvm, queues, drop); 45186110d9e5SDavid Spinadel return; 45196110d9e5SDavid Spinadel } 45206110d9e5SDavid Spinadel 45216110d9e5SDavid Spinadel if (vif->type != NL80211_IFTYPE_STATION) 4522e705c121SKalle Valo return; 4523e705c121SKalle Valo 452424afba76SLiad Kaufman /* Make sure we're done with the deferred traffic before flushing */ 452524afba76SLiad Kaufman flush_work(&mvm->add_stream_wk); 452624afba76SLiad Kaufman 4527e705c121SKalle Valo mutex_lock(&mvm->mutex); 4528e705c121SKalle Valo mvmvif = iwl_mvm_vif_from_mac80211(vif); 4529e705c121SKalle Valo 4530e705c121SKalle Valo /* flush the AP-station and all TDLS peers */ 45310ae98812SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 4532e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4533e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 4534e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) 4535e705c121SKalle Valo continue; 4536e705c121SKalle Valo 4537e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_mac80211(sta); 4538e705c121SKalle Valo if (mvmsta->vif != vif) 4539e705c121SKalle Valo continue; 4540e705c121SKalle Valo 4541e705c121SKalle Valo /* make sure only TDLS peers or the AP are flushed */ 4542e705c121SKalle Valo WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); 4543e705c121SKalle Valo 4544d49394a1SSara Sharon if (drop) { 4545d49394a1SSara Sharon if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0)) 4546d49394a1SSara Sharon IWL_ERR(mvm, "flush request fail\n"); 4547d49394a1SSara Sharon } else { 4548e705c121SKalle Valo msk |= mvmsta->tfd_queue_msk; 4549d6d517b7SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 4550d6d517b7SSara Sharon iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 4551e705c121SKalle Valo } 4552d49394a1SSara Sharon } 4553e705c121SKalle Valo 4554e705c121SKalle Valo mutex_unlock(&mvm->mutex); 4555e705c121SKalle Valo 4556e705c121SKalle Valo /* this can take a while, and we may need/want other operations 4557e705c121SKalle Valo * to succeed while doing this, so do it without the mutex held 4558e705c121SKalle Valo */ 4559d6d517b7SSara Sharon if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 4560a1a57877SSara Sharon iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 4561e705c121SKalle Valo } 4562e705c121SKalle Valo 4563e705c121SKalle Valo static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 4564e705c121SKalle Valo struct survey_info *survey) 4565e705c121SKalle Valo { 4566e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4567e705c121SKalle Valo int ret; 4568e705c121SKalle Valo 4569e705c121SKalle Valo memset(survey, 0, sizeof(*survey)); 4570e705c121SKalle Valo 4571e705c121SKalle Valo /* only support global statistics right now */ 4572e705c121SKalle Valo if (idx != 0) 4573e705c121SKalle Valo return -ENOENT; 4574e705c121SKalle Valo 4575280a3efaSJohannes Berg if (!fw_has_capa(&mvm->fw->ucode_capa, 4576e705c121SKalle Valo IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 4577e705c121SKalle Valo return -ENOENT; 4578e705c121SKalle Valo 4579e705c121SKalle Valo mutex_lock(&mvm->mutex); 4580e705c121SKalle Valo 4581aab6930dSJohannes Berg if (iwl_mvm_firmware_running(mvm)) { 4582e705c121SKalle Valo ret = iwl_mvm_request_statistics(mvm, false); 4583e705c121SKalle Valo if (ret) 4584e705c121SKalle Valo goto out; 4585e705c121SKalle Valo } 4586e705c121SKalle Valo 4587e705c121SKalle Valo survey->filled = SURVEY_INFO_TIME | 4588e705c121SKalle Valo SURVEY_INFO_TIME_RX | 4589e705c121SKalle Valo SURVEY_INFO_TIME_TX | 4590e705c121SKalle Valo SURVEY_INFO_TIME_SCAN; 4591e705c121SKalle Valo survey->time = mvm->accu_radio_stats.on_time_rf + 4592e705c121SKalle Valo mvm->radio_stats.on_time_rf; 4593e705c121SKalle Valo do_div(survey->time, USEC_PER_MSEC); 4594e705c121SKalle Valo 4595e705c121SKalle Valo survey->time_rx = mvm->accu_radio_stats.rx_time + 4596e705c121SKalle Valo mvm->radio_stats.rx_time; 4597e705c121SKalle Valo do_div(survey->time_rx, USEC_PER_MSEC); 4598e705c121SKalle Valo 4599e705c121SKalle Valo survey->time_tx = mvm->accu_radio_stats.tx_time + 4600e705c121SKalle Valo mvm->radio_stats.tx_time; 4601e705c121SKalle Valo do_div(survey->time_tx, USEC_PER_MSEC); 4602e705c121SKalle Valo 4603e705c121SKalle Valo survey->time_scan = mvm->accu_radio_stats.on_time_scan + 4604e705c121SKalle Valo mvm->radio_stats.on_time_scan; 4605e705c121SKalle Valo do_div(survey->time_scan, USEC_PER_MSEC); 4606e705c121SKalle Valo 4607e705c121SKalle Valo ret = 0; 4608e705c121SKalle Valo out: 4609e705c121SKalle Valo mutex_unlock(&mvm->mutex); 4610e705c121SKalle Valo return ret; 4611e705c121SKalle Valo } 4612e705c121SKalle Valo 4613e705c121SKalle Valo static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 4614e705c121SKalle Valo struct ieee80211_vif *vif, 4615e705c121SKalle Valo struct ieee80211_sta *sta, 4616e705c121SKalle Valo struct station_info *sinfo) 4617e705c121SKalle Valo { 4618e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4619e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4620e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 4621e705c121SKalle Valo 4622988b5968SSara Sharon if (mvmsta->avg_energy) { 4623988b5968SSara Sharon sinfo->signal_avg = mvmsta->avg_energy; 462422d0d2faSOmer Efrat sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 4625988b5968SSara Sharon } 4626988b5968SSara Sharon 4627e705c121SKalle Valo /* if beacon filtering isn't on mac80211 does it anyway */ 4628e705c121SKalle Valo if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 4629e705c121SKalle Valo return; 4630e705c121SKalle Valo 4631e705c121SKalle Valo if (!vif->bss_conf.assoc) 4632e705c121SKalle Valo return; 4633e705c121SKalle Valo 4634e705c121SKalle Valo mutex_lock(&mvm->mutex); 4635e705c121SKalle Valo 4636e705c121SKalle Valo if (mvmvif->ap_sta_id != mvmsta->sta_id) 4637e705c121SKalle Valo goto unlock; 4638e705c121SKalle Valo 4639e705c121SKalle Valo if (iwl_mvm_request_statistics(mvm, false)) 4640e705c121SKalle Valo goto unlock; 4641e705c121SKalle Valo 4642e705c121SKalle Valo sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + 4643e705c121SKalle Valo mvmvif->beacon_stats.accu_num_beacons; 464422d0d2faSOmer Efrat sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 4645e705c121SKalle Valo if (mvmvif->beacon_stats.avg_signal) { 4646e705c121SKalle Valo /* firmware only reports a value after RXing a few beacons */ 4647e705c121SKalle Valo sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; 464822d0d2faSOmer Efrat sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 4649e705c121SKalle Valo } 4650e705c121SKalle Valo unlock: 4651e705c121SKalle Valo mutex_unlock(&mvm->mutex); 4652e705c121SKalle Valo } 4653e705c121SKalle Valo 4654e705c121SKalle Valo static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 4655e705c121SKalle Valo struct ieee80211_vif *vif, 4656e705c121SKalle Valo const struct ieee80211_event *event) 4657e705c121SKalle Valo { 46584c324a51SLuca Coelho #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 4659e705c121SKalle Valo do { \ 46604c324a51SLuca Coelho if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 4661e705c121SKalle Valo break; \ 46627174beb6SJohannes Berg iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 4663e705c121SKalle Valo } while (0) 4664e705c121SKalle Valo 4665e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 4666e705c121SKalle Valo struct iwl_fw_dbg_trigger_mlme *trig_mlme; 4667e705c121SKalle Valo 46686c042d75SSara Sharon trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 46696c042d75SSara Sharon FW_DBG_TRIGGER_MLME); 46706c042d75SSara Sharon if (!trig) 4671e705c121SKalle Valo return; 4672e705c121SKalle Valo 4673e705c121SKalle Valo trig_mlme = (void *)trig->data; 4674e705c121SKalle Valo 4675e705c121SKalle Valo if (event->u.mlme.data == ASSOC_EVENT) { 4676e705c121SKalle Valo if (event->u.mlme.status == MLME_DENIED) 46774c324a51SLuca Coelho CHECK_MLME_TRIGGER(stop_assoc_denied, 4678e705c121SKalle Valo "DENIED ASSOC: reason %d", 4679e705c121SKalle Valo event->u.mlme.reason); 4680e705c121SKalle Valo else if (event->u.mlme.status == MLME_TIMEOUT) 46814c324a51SLuca Coelho CHECK_MLME_TRIGGER(stop_assoc_timeout, 4682e705c121SKalle Valo "ASSOC TIMEOUT"); 4683e705c121SKalle Valo } else if (event->u.mlme.data == AUTH_EVENT) { 4684e705c121SKalle Valo if (event->u.mlme.status == MLME_DENIED) 46854c324a51SLuca Coelho CHECK_MLME_TRIGGER(stop_auth_denied, 4686e705c121SKalle Valo "DENIED AUTH: reason %d", 4687e705c121SKalle Valo event->u.mlme.reason); 4688e705c121SKalle Valo else if (event->u.mlme.status == MLME_TIMEOUT) 46894c324a51SLuca Coelho CHECK_MLME_TRIGGER(stop_auth_timeout, 4690e705c121SKalle Valo "AUTH TIMEOUT"); 4691e705c121SKalle Valo } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 46924c324a51SLuca Coelho CHECK_MLME_TRIGGER(stop_rx_deauth, 4693e705c121SKalle Valo "DEAUTH RX %d", event->u.mlme.reason); 4694e705c121SKalle Valo } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 46954c324a51SLuca Coelho CHECK_MLME_TRIGGER(stop_tx_deauth, 4696e705c121SKalle Valo "DEAUTH TX %d", event->u.mlme.reason); 4697e705c121SKalle Valo } 4698e705c121SKalle Valo #undef CHECK_MLME_TRIGGER 4699e705c121SKalle Valo } 4700e705c121SKalle Valo 4701e705c121SKalle Valo static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 4702e705c121SKalle Valo struct ieee80211_vif *vif, 4703e705c121SKalle Valo const struct ieee80211_event *event) 4704e705c121SKalle Valo { 4705e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 4706e705c121SKalle Valo struct iwl_fw_dbg_trigger_ba *ba_trig; 4707e705c121SKalle Valo 47086c042d75SSara Sharon trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 47096c042d75SSara Sharon FW_DBG_TRIGGER_BA); 47106c042d75SSara Sharon if (!trig) 4711e705c121SKalle Valo return; 4712e705c121SKalle Valo 4713e705c121SKalle Valo ba_trig = (void *)trig->data; 4714e705c121SKalle Valo 4715e705c121SKalle Valo if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 4716e705c121SKalle Valo return; 4717e705c121SKalle Valo 47187174beb6SJohannes Berg iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 4719e705c121SKalle Valo "BAR received from %pM, tid %d, ssn %d", 4720e705c121SKalle Valo event->u.ba.sta->addr, event->u.ba.tid, 4721e705c121SKalle Valo event->u.ba.ssn); 4722e705c121SKalle Valo } 4723e705c121SKalle Valo 4724e705c121SKalle Valo static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 4725e705c121SKalle Valo struct ieee80211_vif *vif, 4726e705c121SKalle Valo const struct ieee80211_event *event) 4727e705c121SKalle Valo { 4728e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4729e705c121SKalle Valo 4730e705c121SKalle Valo switch (event->type) { 4731e705c121SKalle Valo case MLME_EVENT: 4732e705c121SKalle Valo iwl_mvm_event_mlme_callback(mvm, vif, event); 4733e705c121SKalle Valo break; 4734e705c121SKalle Valo case BAR_RX_EVENT: 4735e705c121SKalle Valo iwl_mvm_event_bar_rx_callback(mvm, vif, event); 4736e705c121SKalle Valo break; 4737e705c121SKalle Valo case BA_FRAME_TIMEOUT: 4738528a542aSEmmanuel Grumbach iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 4739528a542aSEmmanuel Grumbach event->u.ba.tid); 4740e705c121SKalle Valo break; 4741e705c121SKalle Valo default: 4742e705c121SKalle Valo break; 4743e705c121SKalle Valo } 4744e705c121SKalle Valo } 4745e705c121SKalle Valo 4746d0ff5d22SSara Sharon void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 4747d0ff5d22SSara Sharon struct iwl_mvm_internal_rxq_notif *notif, 4748d0ff5d22SSara Sharon u32 size) 47490636b938SSara Sharon { 47500636b938SSara Sharon u32 qmask = BIT(mvm->trans->num_rx_queues) - 1; 47510636b938SSara Sharon int ret; 47520636b938SSara Sharon 47530636b938SSara Sharon lockdep_assert_held(&mvm->mutex); 47540636b938SSara Sharon 4755cb8550e1SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm)) 47560636b938SSara Sharon return; 47570636b938SSara Sharon 4758d0ff5d22SSara Sharon notif->cookie = mvm->queue_sync_cookie; 47590636b938SSara Sharon 4760d0ff5d22SSara Sharon if (notif->sync) 4761d0ff5d22SSara Sharon atomic_set(&mvm->queue_sync_counter, 4762d0ff5d22SSara Sharon mvm->trans->num_rx_queues); 4763d0ff5d22SSara Sharon 4764d0ff5d22SSara Sharon ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, size); 47650636b938SSara Sharon if (ret) { 47660636b938SSara Sharon IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 47670636b938SSara Sharon goto out; 47680636b938SSara Sharon } 4769d0ff5d22SSara Sharon 47706ad04359SJohannes Berg if (notif->sync) { 47713a732c65SSara Sharon ret = wait_event_timeout(mvm->rx_sync_waitq, 47726ad04359SJohannes Berg atomic_read(&mvm->queue_sync_counter) == 0 || 47736ad04359SJohannes Berg iwl_mvm_is_radio_killed(mvm), 47740636b938SSara Sharon HZ); 47756ad04359SJohannes Berg WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm)); 47766ad04359SJohannes Berg } 47770636b938SSara Sharon 47780636b938SSara Sharon out: 47790636b938SSara Sharon atomic_set(&mvm->queue_sync_counter, 0); 47800636b938SSara Sharon mvm->queue_sync_cookie++; 47810636b938SSara Sharon } 47820636b938SSara Sharon 47830636b938SSara Sharon static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 47840636b938SSara Sharon { 47850636b938SSara Sharon struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4786d0ff5d22SSara Sharon struct iwl_mvm_internal_rxq_notif data = { 4787d0ff5d22SSara Sharon .type = IWL_MVM_RXQ_EMPTY, 4788d0ff5d22SSara Sharon .sync = 1, 4789d0ff5d22SSara Sharon }; 47900636b938SSara Sharon 47910636b938SSara Sharon mutex_lock(&mvm->mutex); 4792d0ff5d22SSara Sharon iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data)); 47930636b938SSara Sharon mutex_unlock(&mvm->mutex); 47940636b938SSara Sharon } 47950636b938SSara Sharon 4796438af969SSara Sharon static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 4797438af969SSara Sharon { 4798438af969SSara Sharon u8 protocol = ip_hdr(skb)->protocol; 4799438af969SSara Sharon 4800438af969SSara Sharon if (!IS_ENABLED(CONFIG_INET)) 4801438af969SSara Sharon return false; 4802438af969SSara Sharon 4803438af969SSara Sharon return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 4804438af969SSara Sharon } 4805438af969SSara Sharon 4806438af969SSara Sharon static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 4807438af969SSara Sharon struct sk_buff *head, 4808438af969SSara Sharon struct sk_buff *skb) 4809438af969SSara Sharon { 4810438af969SSara Sharon struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4811438af969SSara Sharon 4812438af969SSara Sharon /* For now don't aggregate IPv6 in AMSDU */ 4813438af969SSara Sharon if (skb->protocol != htons(ETH_P_IP)) 4814438af969SSara Sharon return false; 4815438af969SSara Sharon 4816438af969SSara Sharon if (!iwl_mvm_is_csum_supported(mvm)) 4817438af969SSara Sharon return true; 4818438af969SSara Sharon 4819438af969SSara Sharon return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 4820438af969SSara Sharon } 4821438af969SSara Sharon 4822e705c121SKalle Valo const struct ieee80211_ops iwl_mvm_hw_ops = { 4823e705c121SKalle Valo .tx = iwl_mvm_mac_tx, 4824cfbc6c4cSSara Sharon .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 4825e705c121SKalle Valo .ampdu_action = iwl_mvm_mac_ampdu_action, 4826e705c121SKalle Valo .start = iwl_mvm_mac_start, 4827e705c121SKalle Valo .reconfig_complete = iwl_mvm_mac_reconfig_complete, 4828e705c121SKalle Valo .stop = iwl_mvm_mac_stop, 4829e705c121SKalle Valo .add_interface = iwl_mvm_mac_add_interface, 4830e705c121SKalle Valo .remove_interface = iwl_mvm_mac_remove_interface, 4831e705c121SKalle Valo .config = iwl_mvm_mac_config, 4832e705c121SKalle Valo .prepare_multicast = iwl_mvm_prepare_multicast, 4833e705c121SKalle Valo .configure_filter = iwl_mvm_configure_filter, 4834e705c121SKalle Valo .config_iface_filter = iwl_mvm_config_iface_filter, 4835e705c121SKalle Valo .bss_info_changed = iwl_mvm_bss_info_changed, 4836e705c121SKalle Valo .hw_scan = iwl_mvm_mac_hw_scan, 4837e705c121SKalle Valo .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 4838e705c121SKalle Valo .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 4839e705c121SKalle Valo .sta_state = iwl_mvm_mac_sta_state, 4840e705c121SKalle Valo .sta_notify = iwl_mvm_mac_sta_notify, 4841e705c121SKalle Valo .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 4842e705c121SKalle Valo .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 4843e705c121SKalle Valo .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 4844e705c121SKalle Valo .sta_rc_update = iwl_mvm_sta_rc_update, 4845e705c121SKalle Valo .conf_tx = iwl_mvm_mac_conf_tx, 4846e705c121SKalle Valo .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 4847e705c121SKalle Valo .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 4848e705c121SKalle Valo .flush = iwl_mvm_mac_flush, 4849e705c121SKalle Valo .sched_scan_start = iwl_mvm_mac_sched_scan_start, 4850e705c121SKalle Valo .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 4851e705c121SKalle Valo .set_key = iwl_mvm_mac_set_key, 4852e705c121SKalle Valo .update_tkip_key = iwl_mvm_mac_update_tkip_key, 4853e705c121SKalle Valo .remain_on_channel = iwl_mvm_roc, 4854e705c121SKalle Valo .cancel_remain_on_channel = iwl_mvm_cancel_roc, 4855e705c121SKalle Valo .add_chanctx = iwl_mvm_add_chanctx, 4856e705c121SKalle Valo .remove_chanctx = iwl_mvm_remove_chanctx, 4857e705c121SKalle Valo .change_chanctx = iwl_mvm_change_chanctx, 4858e705c121SKalle Valo .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 4859e705c121SKalle Valo .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 4860e705c121SKalle Valo .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 4861e705c121SKalle Valo 4862e705c121SKalle Valo .start_ap = iwl_mvm_start_ap_ibss, 4863e705c121SKalle Valo .stop_ap = iwl_mvm_stop_ap_ibss, 4864e705c121SKalle Valo .join_ibss = iwl_mvm_start_ap_ibss, 4865e705c121SKalle Valo .leave_ibss = iwl_mvm_stop_ap_ibss, 4866e705c121SKalle Valo 48672f0282dbSJohannes Berg .tx_last_beacon = iwl_mvm_tx_last_beacon, 48682f0282dbSJohannes Berg 4869e705c121SKalle Valo .set_tim = iwl_mvm_set_tim, 4870e705c121SKalle Valo 4871e705c121SKalle Valo .channel_switch = iwl_mvm_channel_switch, 4872e705c121SKalle Valo .pre_channel_switch = iwl_mvm_pre_channel_switch, 4873e705c121SKalle Valo .post_channel_switch = iwl_mvm_post_channel_switch, 4874e705c121SKalle Valo 4875e705c121SKalle Valo .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 4876e705c121SKalle Valo .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 4877e705c121SKalle Valo .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 4878e705c121SKalle Valo 4879e705c121SKalle Valo .event_callback = iwl_mvm_mac_event_callback, 4880e705c121SKalle Valo 48810636b938SSara Sharon .sync_rx_queues = iwl_mvm_sync_rx_queues, 48820636b938SSara Sharon 4883e705c121SKalle Valo CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 4884e705c121SKalle Valo 4885e705c121SKalle Valo #ifdef CONFIG_PM_SLEEP 4886e705c121SKalle Valo /* look at d3.c */ 4887e705c121SKalle Valo .suspend = iwl_mvm_suspend, 4888e705c121SKalle Valo .resume = iwl_mvm_resume, 4889e705c121SKalle Valo .set_wakeup = iwl_mvm_set_wakeup, 4890e705c121SKalle Valo .set_rekey_data = iwl_mvm_set_rekey_data, 4891e705c121SKalle Valo #if IS_ENABLED(CONFIG_IPV6) 4892e705c121SKalle Valo .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 4893e705c121SKalle Valo #endif 4894e705c121SKalle Valo .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 4895e705c121SKalle Valo #endif 4896e705c121SKalle Valo .get_survey = iwl_mvm_mac_get_survey, 4897e705c121SKalle Valo .sta_statistics = iwl_mvm_mac_sta_statistics, 4898438af969SSara Sharon .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 4899177a11cfSGregory Greenman #ifdef CONFIG_IWLWIFI_DEBUGFS 4900177a11cfSGregory Greenman .sta_add_debugfs = iwl_mvm_sta_add_debugfs, 4901177a11cfSGregory Greenman #endif 4902e705c121SKalle Valo }; 4903