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 11e705c121SKalle Valo * 12e705c121SKalle Valo * This program is free software; you can redistribute it and/or modify 13e705c121SKalle Valo * it under the terms of version 2 of the GNU General Public License as 14e705c121SKalle Valo * published by the Free Software Foundation. 15e705c121SKalle Valo * 16e705c121SKalle Valo * This program is distributed in the hope that it will be useful, but 17e705c121SKalle Valo * WITHOUT ANY WARRANTY; without even the implied warranty of 18e705c121SKalle Valo * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19e705c121SKalle Valo * General Public License for more details. 20e705c121SKalle Valo * 21e705c121SKalle Valo * You should have received a copy of the GNU General Public License 22e705c121SKalle Valo * along with this program; if not, write to the Free Software 23e705c121SKalle Valo * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 24e705c121SKalle Valo * USA 25e705c121SKalle Valo * 26e705c121SKalle Valo * The full GNU General Public License is included in this distribution 27e705c121SKalle Valo * in the file called COPYING. 28e705c121SKalle Valo * 29e705c121SKalle Valo * Contact Information: 30cb2f8277SEmmanuel Grumbach * Intel Linux Wireless <linuxwifi@intel.com> 31e705c121SKalle Valo * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 32e705c121SKalle Valo * 33e705c121SKalle Valo * BSD LICENSE 34e705c121SKalle Valo * 35e705c121SKalle Valo * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 3626d6c16bSSara Sharon * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 3726d6c16bSSara Sharon * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 38e705c121SKalle Valo * All rights reserved. 39e705c121SKalle Valo * 40e705c121SKalle Valo * Redistribution and use in source and binary forms, with or without 41e705c121SKalle Valo * modification, are permitted provided that the following conditions 42e705c121SKalle Valo * are met: 43e705c121SKalle Valo * 44e705c121SKalle Valo * * Redistributions of source code must retain the above copyright 45e705c121SKalle Valo * notice, this list of conditions and the following disclaimer. 46e705c121SKalle Valo * * Redistributions in binary form must reproduce the above copyright 47e705c121SKalle Valo * notice, this list of conditions and the following disclaimer in 48e705c121SKalle Valo * the documentation and/or other materials provided with the 49e705c121SKalle Valo * distribution. 50e705c121SKalle Valo * * Neither the name Intel Corporation nor the names of its 51e705c121SKalle Valo * contributors may be used to endorse or promote products derived 52e705c121SKalle Valo * from this software without specific prior written permission. 53e705c121SKalle Valo * 54e705c121SKalle Valo * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 55e705c121SKalle Valo * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 56e705c121SKalle Valo * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 57e705c121SKalle Valo * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 58e705c121SKalle Valo * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 59e705c121SKalle Valo * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 60e705c121SKalle Valo * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 61e705c121SKalle Valo * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 62e705c121SKalle Valo * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 63e705c121SKalle Valo * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 64e705c121SKalle Valo * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 65e705c121SKalle Valo * 66e705c121SKalle Valo *****************************************************************************/ 67e705c121SKalle Valo #include <linux/kernel.h> 68e705c121SKalle Valo #include <linux/slab.h> 69e705c121SKalle Valo #include <linux/skbuff.h> 70e705c121SKalle Valo #include <linux/netdevice.h> 71e705c121SKalle Valo #include <linux/etherdevice.h> 72e705c121SKalle Valo #include <linux/ip.h> 73e705c121SKalle Valo #include <linux/if_arp.h> 742f89a5d7SGolan Ben-Ami #include <linux/time.h> 75e705c121SKalle Valo #include <net/mac80211.h> 76e705c121SKalle Valo #include <net/ieee80211_radiotap.h> 77e705c121SKalle Valo #include <net/tcp.h> 78e705c121SKalle Valo 79e705c121SKalle Valo #include "iwl-op-mode.h" 80e705c121SKalle Valo #include "iwl-io.h" 81e705c121SKalle Valo #include "mvm.h" 82e705c121SKalle Valo #include "sta.h" 83e705c121SKalle Valo #include "time-event.h" 84e705c121SKalle Valo #include "iwl-eeprom-parse.h" 85e705c121SKalle Valo #include "iwl-phy-db.h" 86e705c121SKalle Valo #include "testmode.h" 87d962f9b1SJohannes Berg #include "fw/error-dump.h" 88e705c121SKalle Valo #include "iwl-prph.h" 89e705c121SKalle Valo #include "iwl-nvm-parse.h" 902f89a5d7SGolan Ben-Ami #include "fw-dbg.h" 91e705c121SKalle Valo 92e705c121SKalle Valo static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 93e705c121SKalle Valo { 94e705c121SKalle Valo .max = 1, 95e705c121SKalle Valo .types = BIT(NL80211_IFTYPE_STATION), 96e705c121SKalle Valo }, 97e705c121SKalle Valo { 98e705c121SKalle Valo .max = 1, 99e705c121SKalle Valo .types = BIT(NL80211_IFTYPE_AP) | 100e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_CLIENT) | 101e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_GO), 102e705c121SKalle Valo }, 103e705c121SKalle Valo { 104e705c121SKalle Valo .max = 1, 105e705c121SKalle Valo .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 106e705c121SKalle Valo }, 107e705c121SKalle Valo }; 108e705c121SKalle Valo 109e705c121SKalle Valo static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 110e705c121SKalle Valo { 111e705c121SKalle Valo .num_different_channels = 2, 112e705c121SKalle Valo .max_interfaces = 3, 113e705c121SKalle Valo .limits = iwl_mvm_limits, 114e705c121SKalle Valo .n_limits = ARRAY_SIZE(iwl_mvm_limits), 115e705c121SKalle Valo }, 116e705c121SKalle Valo }; 117e705c121SKalle Valo 118e705c121SKalle Valo #ifdef CONFIG_PM_SLEEP 119e705c121SKalle Valo static const struct nl80211_wowlan_tcp_data_token_feature 120e705c121SKalle Valo iwl_mvm_wowlan_tcp_token_feature = { 121e705c121SKalle Valo .min_len = 0, 122e705c121SKalle Valo .max_len = 255, 123e705c121SKalle Valo .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS, 124e705c121SKalle Valo }; 125e705c121SKalle Valo 126e705c121SKalle Valo static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = { 127e705c121SKalle Valo .tok = &iwl_mvm_wowlan_tcp_token_feature, 128e705c121SKalle Valo .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN - 129e705c121SKalle Valo sizeof(struct ethhdr) - 130e705c121SKalle Valo sizeof(struct iphdr) - 131e705c121SKalle Valo sizeof(struct tcphdr), 132e705c121SKalle Valo .data_interval_max = 65535, /* __le16 in API */ 133e705c121SKalle Valo .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN - 134e705c121SKalle Valo sizeof(struct ethhdr) - 135e705c121SKalle Valo sizeof(struct iphdr) - 136e705c121SKalle Valo sizeof(struct tcphdr), 137e705c121SKalle Valo .seq = true, 138e705c121SKalle Valo }; 139e705c121SKalle Valo #endif 140e705c121SKalle Valo 141e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 142e705c121SKalle Valo /* 143e705c121SKalle Valo * Use the reserved field to indicate magic values. 144e705c121SKalle Valo * these values will only be used internally by the driver, 145e705c121SKalle Valo * and won't make it to the fw (reserved will be 0). 146e705c121SKalle Valo * BC_FILTER_MAGIC_IP - configure the val of this attribute to 147e705c121SKalle Valo * be the vif's ip address. in case there is not a single 148e705c121SKalle Valo * ip address (0, or more than 1), this attribute will 149e705c121SKalle Valo * be skipped. 150e705c121SKalle Valo * BC_FILTER_MAGIC_MAC - set the val of this attribute to 151e705c121SKalle Valo * the LSB bytes of the vif's mac address 152e705c121SKalle Valo */ 153e705c121SKalle Valo enum { 154e705c121SKalle Valo BC_FILTER_MAGIC_NONE = 0, 155e705c121SKalle Valo BC_FILTER_MAGIC_IP, 156e705c121SKalle Valo BC_FILTER_MAGIC_MAC, 157e705c121SKalle Valo }; 158e705c121SKalle Valo 159e705c121SKalle Valo static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { 160e705c121SKalle Valo { 161e705c121SKalle Valo /* arp */ 162e705c121SKalle Valo .discard = 0, 163e705c121SKalle Valo .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, 164e705c121SKalle Valo .attrs = { 165e705c121SKalle Valo { 166e705c121SKalle Valo /* frame type - arp, hw type - ethernet */ 167e705c121SKalle Valo .offset_type = 168e705c121SKalle Valo BCAST_FILTER_OFFSET_PAYLOAD_START, 169e705c121SKalle Valo .offset = sizeof(rfc1042_header), 170e705c121SKalle Valo .val = cpu_to_be32(0x08060001), 171e705c121SKalle Valo .mask = cpu_to_be32(0xffffffff), 172e705c121SKalle Valo }, 173e705c121SKalle Valo { 174e705c121SKalle Valo /* arp dest ip */ 175e705c121SKalle Valo .offset_type = 176e705c121SKalle Valo BCAST_FILTER_OFFSET_PAYLOAD_START, 177e705c121SKalle Valo .offset = sizeof(rfc1042_header) + 2 + 178e705c121SKalle Valo sizeof(struct arphdr) + 179e705c121SKalle Valo ETH_ALEN + sizeof(__be32) + 180e705c121SKalle Valo ETH_ALEN, 181e705c121SKalle Valo .mask = cpu_to_be32(0xffffffff), 182e705c121SKalle Valo /* mark it as special field */ 183e705c121SKalle Valo .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), 184e705c121SKalle Valo }, 185e705c121SKalle Valo }, 186e705c121SKalle Valo }, 187e705c121SKalle Valo { 188e705c121SKalle Valo /* dhcp offer bcast */ 189e705c121SKalle Valo .discard = 0, 190e705c121SKalle Valo .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, 191e705c121SKalle Valo .attrs = { 192e705c121SKalle Valo { 193e705c121SKalle Valo /* udp dest port - 68 (bootp client)*/ 194e705c121SKalle Valo .offset_type = BCAST_FILTER_OFFSET_IP_END, 195e705c121SKalle Valo .offset = offsetof(struct udphdr, dest), 196e705c121SKalle Valo .val = cpu_to_be32(0x00440000), 197e705c121SKalle Valo .mask = cpu_to_be32(0xffff0000), 198e705c121SKalle Valo }, 199e705c121SKalle Valo { 200e705c121SKalle Valo /* dhcp - lsb bytes of client hw address */ 201e705c121SKalle Valo .offset_type = BCAST_FILTER_OFFSET_IP_END, 202e705c121SKalle Valo .offset = 38, 203e705c121SKalle Valo .mask = cpu_to_be32(0xffffffff), 204e705c121SKalle Valo /* mark it as special field */ 205e705c121SKalle Valo .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), 206e705c121SKalle Valo }, 207e705c121SKalle Valo }, 208e705c121SKalle Valo }, 209e705c121SKalle Valo /* last filter must be empty */ 210e705c121SKalle Valo {}, 211e705c121SKalle Valo }; 212e705c121SKalle Valo #endif 213e705c121SKalle Valo 214e705c121SKalle Valo void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) 215e705c121SKalle Valo { 216e705c121SKalle Valo if (!iwl_mvm_is_d0i3_supported(mvm)) 217e705c121SKalle Valo return; 218e705c121SKalle Valo 219e705c121SKalle Valo IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type); 220e705c121SKalle Valo spin_lock_bh(&mvm->refs_lock); 221e705c121SKalle Valo mvm->refs[ref_type]++; 222e705c121SKalle Valo spin_unlock_bh(&mvm->refs_lock); 223e705c121SKalle Valo iwl_trans_ref(mvm->trans); 224e705c121SKalle Valo } 225e705c121SKalle Valo 226e705c121SKalle Valo void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) 227e705c121SKalle Valo { 228e705c121SKalle Valo if (!iwl_mvm_is_d0i3_supported(mvm)) 229e705c121SKalle Valo return; 230e705c121SKalle Valo 231e705c121SKalle Valo IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type); 232e705c121SKalle Valo spin_lock_bh(&mvm->refs_lock); 23316c45822SSara Sharon if (WARN_ON(!mvm->refs[ref_type])) { 23416c45822SSara Sharon spin_unlock_bh(&mvm->refs_lock); 23516c45822SSara Sharon return; 23616c45822SSara Sharon } 23716c45822SSara Sharon mvm->refs[ref_type]--; 238e705c121SKalle Valo spin_unlock_bh(&mvm->refs_lock); 239e705c121SKalle Valo iwl_trans_unref(mvm->trans); 240e705c121SKalle Valo } 241e705c121SKalle Valo 242e705c121SKalle Valo static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm, 243e705c121SKalle Valo enum iwl_mvm_ref_type except_ref) 244e705c121SKalle Valo { 245e705c121SKalle Valo int i, j; 246e705c121SKalle Valo 247e705c121SKalle Valo if (!iwl_mvm_is_d0i3_supported(mvm)) 248e705c121SKalle Valo return; 249e705c121SKalle Valo 250e705c121SKalle Valo spin_lock_bh(&mvm->refs_lock); 251e705c121SKalle Valo for (i = 0; i < IWL_MVM_REF_COUNT; i++) { 252e705c121SKalle Valo if (except_ref == i || !mvm->refs[i]) 253e705c121SKalle Valo continue; 254e705c121SKalle Valo 255e705c121SKalle Valo IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n", 256e705c121SKalle Valo i, mvm->refs[i]); 257e705c121SKalle Valo for (j = 0; j < mvm->refs[i]; j++) 258e705c121SKalle Valo iwl_trans_unref(mvm->trans); 259e705c121SKalle Valo mvm->refs[i] = 0; 260e705c121SKalle Valo } 261e705c121SKalle Valo spin_unlock_bh(&mvm->refs_lock); 262e705c121SKalle Valo } 263e705c121SKalle Valo 264e705c121SKalle Valo bool iwl_mvm_ref_taken(struct iwl_mvm *mvm) 265e705c121SKalle Valo { 266e705c121SKalle Valo int i; 267e705c121SKalle Valo bool taken = false; 268e705c121SKalle Valo 269e705c121SKalle Valo if (!iwl_mvm_is_d0i3_supported(mvm)) 270e705c121SKalle Valo return true; 271e705c121SKalle Valo 272e705c121SKalle Valo spin_lock_bh(&mvm->refs_lock); 273e705c121SKalle Valo for (i = 0; i < IWL_MVM_REF_COUNT; i++) { 274e705c121SKalle Valo if (mvm->refs[i]) { 275e705c121SKalle Valo taken = true; 276e705c121SKalle Valo break; 277e705c121SKalle Valo } 278e705c121SKalle Valo } 279e705c121SKalle Valo spin_unlock_bh(&mvm->refs_lock); 280e705c121SKalle Valo 281e705c121SKalle Valo return taken; 282e705c121SKalle Valo } 283e705c121SKalle Valo 284e705c121SKalle Valo int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) 285e705c121SKalle Valo { 286e705c121SKalle Valo iwl_mvm_ref(mvm, ref_type); 287e705c121SKalle Valo 288e705c121SKalle Valo if (!wait_event_timeout(mvm->d0i3_exit_waitq, 289e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status), 290e705c121SKalle Valo HZ)) { 291e705c121SKalle Valo WARN_ON_ONCE(1); 292e705c121SKalle Valo iwl_mvm_unref(mvm, ref_type); 293e705c121SKalle Valo return -EIO; 294e705c121SKalle Valo } 295e705c121SKalle Valo 296e705c121SKalle Valo return 0; 297e705c121SKalle Valo } 298e705c121SKalle Valo 299e705c121SKalle Valo static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 300e705c121SKalle Valo { 301e705c121SKalle Valo int i; 302e705c121SKalle Valo 303e705c121SKalle Valo memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 304e705c121SKalle Valo for (i = 0; i < NUM_PHY_CTX; i++) { 305e705c121SKalle Valo mvm->phy_ctxts[i].id = i; 306e705c121SKalle Valo mvm->phy_ctxts[i].ref = 0; 307e705c121SKalle Valo } 308e705c121SKalle Valo } 309e705c121SKalle Valo 310e705c121SKalle Valo struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 311e705c121SKalle Valo const char *alpha2, 312e705c121SKalle Valo enum iwl_mcc_source src_id, 313e705c121SKalle Valo bool *changed) 314e705c121SKalle Valo { 315e705c121SKalle Valo struct ieee80211_regdomain *regd = NULL; 316e705c121SKalle Valo struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 317e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 318e705c121SKalle Valo struct iwl_mcc_update_resp *resp; 319e705c121SKalle Valo 320e705c121SKalle Valo IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 321e705c121SKalle Valo 322e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 323e705c121SKalle Valo 324e705c121SKalle Valo resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 325e705c121SKalle Valo if (IS_ERR_OR_NULL(resp)) { 326e705c121SKalle Valo IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 327e705c121SKalle Valo PTR_ERR_OR_ZERO(resp)); 328e705c121SKalle Valo goto out; 329e705c121SKalle Valo } 330e705c121SKalle Valo 331e705c121SKalle Valo if (changed) 332e705c121SKalle Valo *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE); 333e705c121SKalle Valo 334e705c121SKalle Valo regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 335e705c121SKalle Valo __le32_to_cpu(resp->n_channels), 336e705c121SKalle Valo resp->channels, 337e705c121SKalle Valo __le16_to_cpu(resp->mcc)); 338e705c121SKalle Valo /* Store the return source id */ 339e705c121SKalle Valo src_id = resp->source_id; 340e705c121SKalle Valo kfree(resp); 341e705c121SKalle Valo if (IS_ERR_OR_NULL(regd)) { 342e705c121SKalle Valo IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 343e705c121SKalle Valo PTR_ERR_OR_ZERO(regd)); 344e705c121SKalle Valo goto out; 345e705c121SKalle Valo } 346e705c121SKalle Valo 347e705c121SKalle Valo IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 348e705c121SKalle Valo regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 349e705c121SKalle Valo mvm->lar_regdom_set = true; 350e705c121SKalle Valo mvm->mcc_src = src_id; 351e705c121SKalle Valo 352e705c121SKalle Valo out: 353e705c121SKalle Valo return regd; 354e705c121SKalle Valo } 355e705c121SKalle Valo 356e705c121SKalle Valo void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 357e705c121SKalle Valo { 358e705c121SKalle Valo bool changed; 359e705c121SKalle Valo struct ieee80211_regdomain *regd; 360e705c121SKalle Valo 361e705c121SKalle Valo if (!iwl_mvm_is_lar_supported(mvm)) 362e705c121SKalle Valo return; 363e705c121SKalle Valo 364e705c121SKalle Valo regd = iwl_mvm_get_current_regdomain(mvm, &changed); 365e705c121SKalle Valo if (!IS_ERR_OR_NULL(regd)) { 366e705c121SKalle Valo /* only update the regulatory core if changed */ 367e705c121SKalle Valo if (changed) 368e705c121SKalle Valo regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 369e705c121SKalle Valo 370e705c121SKalle Valo kfree(regd); 371e705c121SKalle Valo } 372e705c121SKalle Valo } 373e705c121SKalle Valo 374e705c121SKalle Valo struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 375e705c121SKalle Valo bool *changed) 376e705c121SKalle Valo { 377e705c121SKalle Valo return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 378e705c121SKalle Valo iwl_mvm_is_wifi_mcc_supported(mvm) ? 379e705c121SKalle Valo MCC_SOURCE_GET_CURRENT : 380e705c121SKalle Valo MCC_SOURCE_OLD_FW, changed); 381e705c121SKalle Valo } 382e705c121SKalle Valo 383e705c121SKalle Valo int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) 384e705c121SKalle Valo { 385e705c121SKalle Valo enum iwl_mcc_source used_src; 386e705c121SKalle Valo struct ieee80211_regdomain *regd; 387e705c121SKalle Valo int ret; 388e705c121SKalle Valo bool changed; 389e705c121SKalle Valo const struct ieee80211_regdomain *r = 390e705c121SKalle Valo rtnl_dereference(mvm->hw->wiphy->regd); 391e705c121SKalle Valo 392e705c121SKalle Valo if (!r) 393e705c121SKalle Valo return -ENOENT; 394e705c121SKalle Valo 395e705c121SKalle Valo /* save the last source in case we overwrite it below */ 396e705c121SKalle Valo used_src = mvm->mcc_src; 397e705c121SKalle Valo if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 398e705c121SKalle Valo /* Notify the firmware we support wifi location updates */ 399e705c121SKalle Valo regd = iwl_mvm_get_current_regdomain(mvm, NULL); 400e705c121SKalle Valo if (!IS_ERR_OR_NULL(regd)) 401e705c121SKalle Valo kfree(regd); 402e705c121SKalle Valo } 403e705c121SKalle Valo 404e705c121SKalle Valo /* Now set our last stored MCC and source */ 405e705c121SKalle Valo regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 406e705c121SKalle Valo &changed); 407e705c121SKalle Valo if (IS_ERR_OR_NULL(regd)) 408e705c121SKalle Valo return -EIO; 409e705c121SKalle Valo 410e705c121SKalle Valo /* update cfg80211 if the regdomain was changed */ 411e705c121SKalle Valo if (changed) 412e705c121SKalle Valo ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd); 413e705c121SKalle Valo else 414e705c121SKalle Valo ret = 0; 415e705c121SKalle Valo 416e705c121SKalle Valo kfree(regd); 417e705c121SKalle Valo return ret; 418e705c121SKalle Valo } 419e705c121SKalle Valo 420e705c121SKalle Valo int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 421e705c121SKalle Valo { 422e705c121SKalle Valo struct ieee80211_hw *hw = mvm->hw; 423e705c121SKalle Valo int num_mac, ret, i; 424e705c121SKalle Valo static const u32 mvm_ciphers[] = { 425e705c121SKalle Valo WLAN_CIPHER_SUITE_WEP40, 426e705c121SKalle Valo WLAN_CIPHER_SUITE_WEP104, 427e705c121SKalle Valo WLAN_CIPHER_SUITE_TKIP, 428e705c121SKalle Valo WLAN_CIPHER_SUITE_CCMP, 429e705c121SKalle Valo }; 430e705c121SKalle Valo 431e705c121SKalle Valo /* Tell mac80211 our characteristics */ 432e705c121SKalle Valo ieee80211_hw_set(hw, SIGNAL_DBM); 433e705c121SKalle Valo ieee80211_hw_set(hw, SPECTRUM_MGMT); 434e705c121SKalle Valo ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 435e705c121SKalle Valo ieee80211_hw_set(hw, QUEUE_CONTROL); 436e705c121SKalle Valo ieee80211_hw_set(hw, WANT_MONITOR_VIF); 437e705c121SKalle Valo ieee80211_hw_set(hw, SUPPORTS_PS); 438e705c121SKalle Valo ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 439e705c121SKalle Valo ieee80211_hw_set(hw, AMPDU_AGGREGATION); 440e705c121SKalle Valo ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 441e705c121SKalle Valo ieee80211_hw_set(hw, CONNECTION_MONITOR); 442e705c121SKalle Valo ieee80211_hw_set(hw, CHANCTX_STA_CSA); 443e705c121SKalle Valo ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 444e705c121SKalle Valo ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 445909ddf0bSJohannes Berg ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 44630433d3bSJohannes Berg ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 447b915c101SSara Sharon if (iwl_mvm_has_new_rx_api(mvm)) 448b915c101SSara Sharon ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 44965e25482SJohannes Berg if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) 45065e25482SJohannes Berg ieee80211_hw_set(hw, AP_LINK_PS); 451e705c121SKalle Valo 45280938abcSJohannes Berg if (mvm->trans->num_rx_queues > 1) 45380938abcSJohannes Berg ieee80211_hw_set(hw, USES_RSS); 45480938abcSJohannes Berg 4552d7cf549SJohannes Berg if (mvm->trans->max_skb_frags) 4562d7cf549SJohannes Berg hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 4572d7cf549SJohannes Berg 458cf961e16SLiad Kaufman if (!iwl_mvm_is_dqa_supported(mvm)) 459e705c121SKalle Valo hw->queues = mvm->first_agg_queue; 460cf961e16SLiad Kaufman else 461cf961e16SLiad Kaufman hw->queues = IEEE80211_MAX_QUEUES; 462e705c121SKalle Valo hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 463e705c121SKalle Valo hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 464e705c121SKalle Valo IEEE80211_RADIOTAP_MCS_HAVE_STBC; 465e705c121SKalle Valo hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 466e705c121SKalle Valo IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 467371a17edSJohannes Berg 468371a17edSJohannes Berg hw->radiotap_timestamp.units_pos = 469371a17edSJohannes Berg IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 470371a17edSJohannes Berg IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 471371a17edSJohannes Berg /* this is the case for CCK frames, it's better (only 8) for OFDM */ 472371a17edSJohannes Berg hw->radiotap_timestamp.accuracy = 22; 473371a17edSJohannes Berg 474e705c121SKalle Valo hw->rate_control_algorithm = "iwl-mvm-rs"; 475e705c121SKalle Valo hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 476e705c121SKalle Valo hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 477e705c121SKalle Valo 4788e160ab8SAyala Beker BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 479e705c121SKalle Valo memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 480e705c121SKalle Valo hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 481e705c121SKalle Valo hw->wiphy->cipher_suites = mvm->ciphers; 482e705c121SKalle Valo 4832a53d166SAyala Beker if (iwl_mvm_has_new_rx_api(mvm)) { 4842a53d166SAyala Beker mvm->ciphers[hw->wiphy->n_cipher_suites] = 4852a53d166SAyala Beker WLAN_CIPHER_SUITE_GCMP; 4862a53d166SAyala Beker hw->wiphy->n_cipher_suites++; 4872a53d166SAyala Beker mvm->ciphers[hw->wiphy->n_cipher_suites] = 4882a53d166SAyala Beker WLAN_CIPHER_SUITE_GCMP_256; 4892a53d166SAyala Beker hw->wiphy->n_cipher_suites++; 4902a53d166SAyala Beker } 4912a53d166SAyala Beker 4924b87e5afSLuca Coelho /* Enable 11w if software crypto is not enabled (as the 4934b87e5afSLuca Coelho * firmware will interpret some mgmt packets, so enabling it 4944b87e5afSLuca Coelho * with software crypto isn't safe). 495e705c121SKalle Valo */ 4963b37f4c9SJohannes Berg if (!iwlwifi_mod_params.swcrypto) { 497e705c121SKalle Valo ieee80211_hw_set(hw, MFP_CAPABLE); 498e705c121SKalle Valo mvm->ciphers[hw->wiphy->n_cipher_suites] = 499e705c121SKalle Valo WLAN_CIPHER_SUITE_AES_CMAC; 500e705c121SKalle Valo hw->wiphy->n_cipher_suites++; 5018e160ab8SAyala Beker if (iwl_mvm_has_new_rx_api(mvm)) { 5028e160ab8SAyala Beker mvm->ciphers[hw->wiphy->n_cipher_suites] = 5038e160ab8SAyala Beker WLAN_CIPHER_SUITE_BIP_GMAC_128; 5048e160ab8SAyala Beker hw->wiphy->n_cipher_suites++; 5058e160ab8SAyala Beker mvm->ciphers[hw->wiphy->n_cipher_suites] = 5068e160ab8SAyala Beker WLAN_CIPHER_SUITE_BIP_GMAC_256; 5078e160ab8SAyala Beker hw->wiphy->n_cipher_suites++; 5088e160ab8SAyala Beker } 509e705c121SKalle Valo } 510e705c121SKalle Valo 511e705c121SKalle Valo /* currently FW API supports only one optional cipher scheme */ 512e705c121SKalle Valo if (mvm->fw->cs[0].cipher) { 51324ddddf3SJohannes Berg const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0]; 51424ddddf3SJohannes Berg struct ieee80211_cipher_scheme *cs = &mvm->cs[0]; 51524ddddf3SJohannes Berg 516e705c121SKalle Valo mvm->hw->n_cipher_schemes = 1; 51724ddddf3SJohannes Berg 51824ddddf3SJohannes Berg cs->cipher = le32_to_cpu(fwcs->cipher); 51924ddddf3SJohannes Berg cs->iftype = BIT(NL80211_IFTYPE_STATION); 52024ddddf3SJohannes Berg cs->hdr_len = fwcs->hdr_len; 52124ddddf3SJohannes Berg cs->pn_len = fwcs->pn_len; 52224ddddf3SJohannes Berg cs->pn_off = fwcs->pn_off; 52324ddddf3SJohannes Berg cs->key_idx_off = fwcs->key_idx_off; 52424ddddf3SJohannes Berg cs->key_idx_mask = fwcs->key_idx_mask; 52524ddddf3SJohannes Berg cs->key_idx_shift = fwcs->key_idx_shift; 52624ddddf3SJohannes Berg cs->mic_len = fwcs->mic_len; 52724ddddf3SJohannes Berg 52824ddddf3SJohannes Berg mvm->hw->cipher_schemes = mvm->cs; 52924ddddf3SJohannes Berg mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher; 530e705c121SKalle Valo hw->wiphy->n_cipher_suites++; 531e705c121SKalle Valo } 532e705c121SKalle Valo 533e705c121SKalle Valo ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 534e705c121SKalle Valo hw->wiphy->features |= 535e705c121SKalle Valo NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 536e705c121SKalle Valo NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 537e705c121SKalle Valo NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 538e705c121SKalle Valo 539e705c121SKalle Valo hw->sta_data_size = sizeof(struct iwl_mvm_sta); 540e705c121SKalle Valo hw->vif_data_size = sizeof(struct iwl_mvm_vif); 541e705c121SKalle Valo hw->chanctx_data_size = sizeof(u16); 542e705c121SKalle Valo 543e705c121SKalle Valo hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 544e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_CLIENT) | 545e705c121SKalle Valo BIT(NL80211_IFTYPE_AP) | 546e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_GO) | 547e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_DEVICE) | 548e705c121SKalle Valo BIT(NL80211_IFTYPE_ADHOC); 549e705c121SKalle Valo 550e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 551e705c121SKalle Valo hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 552e705c121SKalle Valo if (iwl_mvm_is_lar_supported(mvm)) 553e705c121SKalle Valo hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 554e705c121SKalle Valo else 555e705c121SKalle Valo hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 556e705c121SKalle Valo REGULATORY_DISABLE_BEACON_HINTS; 557e705c121SKalle Valo 558e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 559e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 560e705c121SKalle Valo 561e705c121SKalle Valo hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 562e705c121SKalle Valo hw->wiphy->n_iface_combinations = 563e705c121SKalle Valo ARRAY_SIZE(iwl_mvm_iface_combinations); 564e705c121SKalle Valo 565e705c121SKalle Valo hw->wiphy->max_remain_on_channel_duration = 10000; 566e705c121SKalle Valo hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 567e705c121SKalle Valo /* we can compensate an offset of up to 3 channels = 15 MHz */ 568e705c121SKalle Valo hw->wiphy->max_adj_channel_rssi_comp = 3 * 5; 569e705c121SKalle Valo 570e705c121SKalle Valo /* Extract MAC address */ 571e705c121SKalle Valo memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 572e705c121SKalle Valo hw->wiphy->addresses = mvm->addresses; 573e705c121SKalle Valo hw->wiphy->n_addresses = 1; 574e705c121SKalle Valo 575e705c121SKalle Valo /* Extract additional MAC addresses if available */ 576e705c121SKalle Valo num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 577e705c121SKalle Valo min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 578e705c121SKalle Valo 579e705c121SKalle Valo for (i = 1; i < num_mac; i++) { 580e705c121SKalle Valo memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 581e705c121SKalle Valo ETH_ALEN); 582e705c121SKalle Valo mvm->addresses[i].addr[5]++; 583e705c121SKalle Valo hw->wiphy->n_addresses++; 584e705c121SKalle Valo } 585e705c121SKalle Valo 586e705c121SKalle Valo iwl_mvm_reset_phy_ctxts(mvm); 587e705c121SKalle Valo 588e705c121SKalle Valo hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 589e705c121SKalle Valo 590e705c121SKalle Valo hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 591e705c121SKalle Valo 592e705c121SKalle Valo BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 593e705c121SKalle Valo BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 594e705c121SKalle Valo IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 595e705c121SKalle Valo 596e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 597e705c121SKalle Valo mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 598e705c121SKalle Valo else 599e705c121SKalle Valo mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 600e705c121SKalle Valo 60157fbcce3SJohannes Berg if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 60257fbcce3SJohannes Berg hw->wiphy->bands[NL80211_BAND_2GHZ] = 60357fbcce3SJohannes Berg &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 60457fbcce3SJohannes Berg if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 60557fbcce3SJohannes Berg hw->wiphy->bands[NL80211_BAND_5GHZ] = 60657fbcce3SJohannes Berg &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 607e705c121SKalle Valo 608e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 609e705c121SKalle Valo IWL_UCODE_TLV_CAPA_BEAMFORMER) && 610e705c121SKalle Valo fw_has_api(&mvm->fw->ucode_capa, 611e705c121SKalle Valo IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 61257fbcce3SJohannes Berg hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 613e705c121SKalle Valo IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 614e705c121SKalle Valo } 615e705c121SKalle Valo 616e705c121SKalle Valo hw->wiphy->hw_version = mvm->trans->hw_id; 617e705c121SKalle Valo 618e705c121SKalle Valo if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 619e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 620e705c121SKalle Valo else 621e705c121SKalle Valo hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 622e705c121SKalle Valo 623ca986ad9SArend Van Spriel hw->wiphy->max_sched_scan_reqs = 1; 624e705c121SKalle Valo hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 625e705c121SKalle Valo hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; 626e705c121SKalle Valo /* we create the 802.11 header and zero length SSID IE. */ 627e705c121SKalle Valo hw->wiphy->max_sched_scan_ie_len = 628e705c121SKalle Valo SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 629e705c121SKalle Valo hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 630e705c121SKalle Valo hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 631e705c121SKalle Valo 632e705c121SKalle Valo /* 633e705c121SKalle Valo * the firmware uses u8 for num of iterations, but 0xff is saved for 634e705c121SKalle Valo * infinite loop, so the maximum number of iterations is actually 254. 635e705c121SKalle Valo */ 636e705c121SKalle Valo hw->wiphy->max_sched_scan_plan_iterations = 254; 637e705c121SKalle Valo 638e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 639e705c121SKalle Valo NL80211_FEATURE_LOW_PRIORITY_SCAN | 640e705c121SKalle Valo NL80211_FEATURE_P2P_GO_OPPPS | 641a904a08bSPeer, Ilan NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 642e705c121SKalle Valo NL80211_FEATURE_DYNAMIC_SMPS | 643e705c121SKalle Valo NL80211_FEATURE_STATIC_SMPS | 644e705c121SKalle Valo NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 645e705c121SKalle Valo 646e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 647e705c121SKalle Valo IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 648e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 649e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 650e705c121SKalle Valo IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 651e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_QUIET; 652e705c121SKalle Valo 653e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 654e705c121SKalle Valo IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 655e705c121SKalle Valo hw->wiphy->features |= 656e705c121SKalle Valo NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 657e705c121SKalle Valo 658e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 659e705c121SKalle Valo IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 660e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 661e705c121SKalle Valo 662aacf8f18SAvrahams Stern if (fw_has_api(&mvm->fw->ucode_capa, 663aacf8f18SAvrahams Stern IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 664aacf8f18SAvrahams Stern wiphy_ext_feature_set(hw->wiphy, 665aacf8f18SAvrahams Stern NL80211_EXT_FEATURE_SCAN_START_TIME); 666aacf8f18SAvrahams Stern wiphy_ext_feature_set(hw->wiphy, 667aacf8f18SAvrahams Stern NL80211_EXT_FEATURE_BSS_PARENT_TSF); 668aacf8f18SAvrahams Stern wiphy_ext_feature_set(hw->wiphy, 669aacf8f18SAvrahams Stern NL80211_EXT_FEATURE_SET_SCAN_DWELL); 670aacf8f18SAvrahams Stern } 671aacf8f18SAvrahams Stern 672e705c121SKalle Valo mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 673e705c121SKalle Valo 674e705c121SKalle Valo #ifdef CONFIG_PM_SLEEP 675e705c121SKalle Valo if (iwl_mvm_is_d0i3_supported(mvm) && 676e705c121SKalle Valo device_can_wakeup(mvm->trans->dev)) { 677e705c121SKalle Valo mvm->wowlan.flags = WIPHY_WOWLAN_ANY; 678e705c121SKalle Valo hw->wiphy->wowlan = &mvm->wowlan; 679e705c121SKalle Valo } 680e705c121SKalle Valo 681eef187a7SSara Sharon if (mvm->fw->img[IWL_UCODE_WOWLAN].num_sec && 682e705c121SKalle Valo mvm->trans->ops->d3_suspend && 683e705c121SKalle Valo mvm->trans->ops->d3_resume && 684e705c121SKalle Valo device_can_wakeup(mvm->trans->dev)) { 685e705c121SKalle Valo mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 686e705c121SKalle Valo WIPHY_WOWLAN_DISCONNECT | 687e705c121SKalle Valo WIPHY_WOWLAN_EAP_IDENTITY_REQ | 688e705c121SKalle Valo WIPHY_WOWLAN_RFKILL_RELEASE | 689e705c121SKalle Valo WIPHY_WOWLAN_NET_DETECT; 6903b37f4c9SJohannes Berg if (!iwlwifi_mod_params.swcrypto) 691e705c121SKalle Valo mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 692e705c121SKalle Valo WIPHY_WOWLAN_GTK_REKEY_FAILURE | 693e705c121SKalle Valo WIPHY_WOWLAN_4WAY_HANDSHAKE; 694e705c121SKalle Valo 695e705c121SKalle Valo mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 696e705c121SKalle Valo mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 697e705c121SKalle Valo mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 698e705c121SKalle Valo mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES; 699e705c121SKalle Valo mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; 700e705c121SKalle Valo hw->wiphy->wowlan = &mvm->wowlan; 701e705c121SKalle Valo } 702e705c121SKalle Valo #endif 703e705c121SKalle Valo 704e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 705e705c121SKalle Valo /* assign default bcast filtering configuration */ 706e705c121SKalle Valo mvm->bcast_filters = iwl_mvm_default_bcast_filters; 707e705c121SKalle Valo #endif 708e705c121SKalle Valo 709e705c121SKalle Valo ret = iwl_mvm_leds_init(mvm); 710e705c121SKalle Valo if (ret) 711e705c121SKalle Valo return ret; 712e705c121SKalle Valo 713e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 714e705c121SKalle Valo IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 715e705c121SKalle Valo IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 716e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 717e705c121SKalle Valo ieee80211_hw_set(hw, TDLS_WIDER_BW); 718e705c121SKalle Valo } 719e705c121SKalle Valo 720e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 721e705c121SKalle Valo IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 722e705c121SKalle Valo IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 723e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 724e705c121SKalle Valo } 725e705c121SKalle Valo 726e705c121SKalle Valo hw->netdev_features |= mvm->cfg->features; 7275e6a98dcSSara Sharon if (!iwl_mvm_is_csum_supported(mvm)) { 7285e6a98dcSSara Sharon hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS | 7295e6a98dcSSara Sharon NETIF_F_RXCSUM); 7305e6a98dcSSara Sharon /* We may support SW TX CSUM */ 73141837ca9SEmmanuel Grumbach if (IWL_MVM_SW_TX_CSUM_OFFLOAD) 7325e6a98dcSSara Sharon hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS; 7335e6a98dcSSara Sharon } 73441837ca9SEmmanuel Grumbach 735e705c121SKalle Valo ret = ieee80211_register_hw(mvm->hw); 736e705c121SKalle Valo if (ret) 737e705c121SKalle Valo iwl_mvm_leds_exit(mvm); 738de8ba41bSLiad Kaufman mvm->init_status |= IWL_MVM_INIT_STATUS_REG_HW_INIT_COMPLETE; 739e705c121SKalle Valo 74091b08c2dSAviya Erenfeld if (mvm->cfg->vht_mu_mimo_supported) 74191b08c2dSAviya Erenfeld wiphy_ext_feature_set(hw->wiphy, 74291b08c2dSAviya Erenfeld NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 74391b08c2dSAviya Erenfeld 744e705c121SKalle Valo return ret; 745e705c121SKalle Valo } 746e705c121SKalle Valo 747e705c121SKalle Valo static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm, 748e705c121SKalle Valo struct ieee80211_sta *sta, 749e705c121SKalle Valo struct sk_buff *skb) 750e705c121SKalle Valo { 751e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 752e705c121SKalle Valo bool defer = false; 753e705c121SKalle Valo 754e705c121SKalle Valo /* 755e705c121SKalle Valo * double check the IN_D0I3 flag both before and after 756e705c121SKalle Valo * taking the spinlock, in order to prevent taking 757e705c121SKalle Valo * the spinlock when not needed. 758e705c121SKalle Valo */ 759e705c121SKalle Valo if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))) 760e705c121SKalle Valo return false; 761e705c121SKalle Valo 762e705c121SKalle Valo spin_lock(&mvm->d0i3_tx_lock); 763e705c121SKalle Valo /* 764e705c121SKalle Valo * testing the flag again ensures the skb dequeue 765e705c121SKalle Valo * loop (on d0i3 exit) hasn't run yet. 766e705c121SKalle Valo */ 767e705c121SKalle Valo if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) 768e705c121SKalle Valo goto out; 769e705c121SKalle Valo 770e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_mac80211(sta); 7710ae98812SSara Sharon if (mvmsta->sta_id == IWL_MVM_INVALID_STA || 772e705c121SKalle Valo mvmsta->sta_id != mvm->d0i3_ap_sta_id) 773e705c121SKalle Valo goto out; 774e705c121SKalle Valo 775e705c121SKalle Valo __skb_queue_tail(&mvm->d0i3_tx, skb); 776e705c121SKalle Valo ieee80211_stop_queues(mvm->hw); 777e705c121SKalle Valo 778e705c121SKalle Valo /* trigger wakeup */ 779e705c121SKalle Valo iwl_mvm_ref(mvm, IWL_MVM_REF_TX); 780e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_TX); 781e705c121SKalle Valo 782e705c121SKalle Valo defer = true; 783e705c121SKalle Valo out: 784e705c121SKalle Valo spin_unlock(&mvm->d0i3_tx_lock); 785e705c121SKalle Valo return defer; 786e705c121SKalle Valo } 787e705c121SKalle Valo 788e705c121SKalle Valo static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 789e705c121SKalle Valo struct ieee80211_tx_control *control, 790e705c121SKalle Valo struct sk_buff *skb) 791e705c121SKalle Valo { 792e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 793e705c121SKalle Valo struct ieee80211_sta *sta = control->sta; 794e705c121SKalle Valo struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 795e705c121SKalle Valo struct ieee80211_hdr *hdr = (void *)skb->data; 796e705c121SKalle Valo 797e705c121SKalle Valo if (iwl_mvm_is_radio_killed(mvm)) { 798e705c121SKalle Valo IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 799e705c121SKalle Valo goto drop; 800e705c121SKalle Valo } 801e705c121SKalle Valo 802e705c121SKalle Valo if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && 803e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 804e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 805e705c121SKalle Valo goto drop; 806e705c121SKalle Valo 807e705c121SKalle Valo /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */ 808e705c121SKalle Valo if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER && 809e705c121SKalle Valo ieee80211_is_mgmt(hdr->frame_control) && 810e705c121SKalle Valo !ieee80211_is_deauth(hdr->frame_control) && 811e705c121SKalle Valo !ieee80211_is_disassoc(hdr->frame_control) && 812e705c121SKalle Valo !ieee80211_is_action(hdr->frame_control))) 813e705c121SKalle Valo sta = NULL; 814e705c121SKalle Valo 815e705c121SKalle Valo if (sta) { 816e705c121SKalle Valo if (iwl_mvm_defer_tx(mvm, sta, skb)) 817e705c121SKalle Valo return; 818e705c121SKalle Valo if (iwl_mvm_tx_skb(mvm, skb, sta)) 819e705c121SKalle Valo goto drop; 820e705c121SKalle Valo return; 821e705c121SKalle Valo } 822e705c121SKalle Valo 823e705c121SKalle Valo if (iwl_mvm_tx_skb_non_sta(mvm, skb)) 824e705c121SKalle Valo goto drop; 825e705c121SKalle Valo return; 826e705c121SKalle Valo drop: 827e705c121SKalle Valo ieee80211_free_txskb(hw, skb); 828e705c121SKalle Valo } 829e705c121SKalle Valo 830e705c121SKalle Valo static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) 831e705c121SKalle Valo { 832e705c121SKalle Valo if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) 833e705c121SKalle Valo return false; 834e705c121SKalle Valo return true; 835e705c121SKalle Valo } 836e705c121SKalle Valo 837e705c121SKalle Valo static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) 838e705c121SKalle Valo { 839e705c121SKalle Valo if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) 840e705c121SKalle Valo return false; 841e705c121SKalle Valo if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) 842e705c121SKalle Valo return true; 843e705c121SKalle Valo 844e705c121SKalle Valo /* enabled by default */ 845e705c121SKalle Valo return true; 846e705c121SKalle Valo } 847e705c121SKalle Valo 848e705c121SKalle Valo #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 849e705c121SKalle Valo do { \ 850e705c121SKalle Valo if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 851e705c121SKalle Valo break; \ 852e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \ 853e705c121SKalle Valo } while (0) 854e705c121SKalle Valo 855e705c121SKalle Valo static void 856e705c121SKalle Valo iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 857e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 858e705c121SKalle Valo enum ieee80211_ampdu_mlme_action action) 859e705c121SKalle Valo { 860e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 861e705c121SKalle Valo struct iwl_fw_dbg_trigger_ba *ba_trig; 862e705c121SKalle Valo 863e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) 864e705c121SKalle Valo return; 865e705c121SKalle Valo 866e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); 867e705c121SKalle Valo ba_trig = (void *)trig->data; 868e705c121SKalle Valo 869e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 870e705c121SKalle Valo return; 871e705c121SKalle Valo 872e705c121SKalle Valo switch (action) { 873e705c121SKalle Valo case IEEE80211_AMPDU_TX_OPERATIONAL: { 874e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 875e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 876e705c121SKalle Valo 877e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 878e705c121SKalle Valo "TX AGG START: MAC %pM tid %d ssn %d\n", 879e705c121SKalle Valo sta->addr, tid, tid_data->ssn); 880e705c121SKalle Valo break; 881e705c121SKalle Valo } 882e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_CONT: 883e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 884e705c121SKalle Valo "TX AGG STOP: MAC %pM tid %d\n", 885e705c121SKalle Valo sta->addr, tid); 886e705c121SKalle Valo break; 887e705c121SKalle Valo case IEEE80211_AMPDU_RX_START: 888e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 889e705c121SKalle Valo "RX AGG START: MAC %pM tid %d ssn %d\n", 890e705c121SKalle Valo sta->addr, tid, rx_ba_ssn); 891e705c121SKalle Valo break; 892e705c121SKalle Valo case IEEE80211_AMPDU_RX_STOP: 893e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 894e705c121SKalle Valo "RX AGG STOP: MAC %pM tid %d\n", 895e705c121SKalle Valo sta->addr, tid); 896e705c121SKalle Valo break; 897e705c121SKalle Valo default: 898e705c121SKalle Valo break; 899e705c121SKalle Valo } 900e705c121SKalle Valo } 901e705c121SKalle Valo 902e705c121SKalle Valo static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 903e705c121SKalle Valo struct ieee80211_vif *vif, 90450ea05efSSara Sharon struct ieee80211_ampdu_params *params) 905e705c121SKalle Valo { 906e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 907e705c121SKalle Valo int ret; 908e705c121SKalle Valo bool tx_agg_ref = false; 90950ea05efSSara Sharon struct ieee80211_sta *sta = params->sta; 91050ea05efSSara Sharon enum ieee80211_ampdu_mlme_action action = params->action; 91150ea05efSSara Sharon u16 tid = params->tid; 91250ea05efSSara Sharon u16 *ssn = ¶ms->ssn; 91350ea05efSSara Sharon u8 buf_size = params->buf_size; 914bb81bb68SEmmanuel Grumbach bool amsdu = params->amsdu; 91510b2b201SSara Sharon u16 timeout = params->timeout; 916e705c121SKalle Valo 917e705c121SKalle Valo IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 918e705c121SKalle Valo sta->addr, tid, action); 919e705c121SKalle Valo 920e705c121SKalle Valo if (!(mvm->nvm_data->sku_cap_11n_enable)) 921e705c121SKalle Valo return -EACCES; 922e705c121SKalle Valo 923e705c121SKalle Valo /* return from D0i3 before starting a new Tx aggregation */ 924e705c121SKalle Valo switch (action) { 925e705c121SKalle Valo case IEEE80211_AMPDU_TX_START: 926e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_CONT: 927e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH: 928e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 929e705c121SKalle Valo case IEEE80211_AMPDU_TX_OPERATIONAL: 930e705c121SKalle Valo /* 931e705c121SKalle Valo * for tx start, wait synchronously until D0i3 exit to 932e705c121SKalle Valo * get the correct sequence number for the tid. 933e705c121SKalle Valo * additionally, some other ampdu actions use direct 934e705c121SKalle Valo * target access, which is not handled automatically 935e705c121SKalle Valo * by the trans layer (unlike commands), so wait for 936e705c121SKalle Valo * d0i3 exit in these cases as well. 937e705c121SKalle Valo */ 938e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG); 939e705c121SKalle Valo if (ret) 940e705c121SKalle Valo return ret; 941e705c121SKalle Valo 942e705c121SKalle Valo tx_agg_ref = true; 943e705c121SKalle Valo break; 944e705c121SKalle Valo default: 945e705c121SKalle Valo break; 946e705c121SKalle Valo } 947e705c121SKalle Valo 948e705c121SKalle Valo mutex_lock(&mvm->mutex); 949e705c121SKalle Valo 950e705c121SKalle Valo switch (action) { 951e705c121SKalle Valo case IEEE80211_AMPDU_RX_START: 952e705c121SKalle Valo if (!iwl_enable_rx_ampdu(mvm->cfg)) { 953e705c121SKalle Valo ret = -EINVAL; 954e705c121SKalle Valo break; 955e705c121SKalle Valo } 95610b2b201SSara Sharon ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 95710b2b201SSara Sharon timeout); 958e705c121SKalle Valo break; 959e705c121SKalle Valo case IEEE80211_AMPDU_RX_STOP: 96010b2b201SSara Sharon ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 96110b2b201SSara Sharon timeout); 962e705c121SKalle Valo break; 963e705c121SKalle Valo case IEEE80211_AMPDU_TX_START: 964e705c121SKalle Valo if (!iwl_enable_tx_ampdu(mvm->cfg)) { 965e705c121SKalle Valo ret = -EINVAL; 966e705c121SKalle Valo break; 967e705c121SKalle Valo } 968e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 969e705c121SKalle Valo break; 970e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_CONT: 971e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 972e705c121SKalle Valo break; 973e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH: 974e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 975e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 976e705c121SKalle Valo break; 977e705c121SKalle Valo case IEEE80211_AMPDU_TX_OPERATIONAL: 978bb81bb68SEmmanuel Grumbach ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 979bb81bb68SEmmanuel Grumbach buf_size, amsdu); 980e705c121SKalle Valo break; 981e705c121SKalle Valo default: 982e705c121SKalle Valo WARN_ON_ONCE(1); 983e705c121SKalle Valo ret = -EINVAL; 984e705c121SKalle Valo break; 985e705c121SKalle Valo } 986e705c121SKalle Valo 987e705c121SKalle Valo if (!ret) { 988e705c121SKalle Valo u16 rx_ba_ssn = 0; 989e705c121SKalle Valo 990e705c121SKalle Valo if (action == IEEE80211_AMPDU_RX_START) 991e705c121SKalle Valo rx_ba_ssn = *ssn; 992e705c121SKalle Valo 993e705c121SKalle Valo iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 994e705c121SKalle Valo rx_ba_ssn, action); 995e705c121SKalle Valo } 996e705c121SKalle Valo mutex_unlock(&mvm->mutex); 997e705c121SKalle Valo 998e705c121SKalle Valo /* 999e705c121SKalle Valo * If the tid is marked as started, we won't use it for offloaded 1000e705c121SKalle Valo * traffic on the next D0i3 entry. It's safe to unref. 1001e705c121SKalle Valo */ 1002e705c121SKalle Valo if (tx_agg_ref) 1003e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); 1004e705c121SKalle Valo 1005e705c121SKalle Valo return ret; 1006e705c121SKalle Valo } 1007e705c121SKalle Valo 1008e705c121SKalle Valo static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1009e705c121SKalle Valo struct ieee80211_vif *vif) 1010e705c121SKalle Valo { 1011e705c121SKalle Valo struct iwl_mvm *mvm = data; 1012e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1013e705c121SKalle Valo 1014e705c121SKalle Valo mvmvif->uploaded = false; 10150ae98812SSara Sharon mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1016e705c121SKalle Valo 1017e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 1018e705c121SKalle Valo iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1019e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 1020e705c121SKalle Valo 1021e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 1022e705c121SKalle Valo memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1023e705c121SKalle Valo } 1024e705c121SKalle Valo 1025e705c121SKalle Valo static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1026e705c121SKalle Valo { 1027e705c121SKalle Valo /* clear the D3 reconfig, we only need it to avoid dumping a 1028e705c121SKalle Valo * firmware coredump on reconfiguration, we shouldn't do that 1029e705c121SKalle Valo * on D3->D0 transition 1030e705c121SKalle Valo */ 1031e705c121SKalle Valo if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) { 1032e705c121SKalle Valo mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert; 1033e705c121SKalle Valo iwl_mvm_fw_error_dump(mvm); 1034e705c121SKalle Valo } 1035e705c121SKalle Valo 1036e705c121SKalle Valo /* cleanup all stale references (scan, roc), but keep the 1037e705c121SKalle Valo * ucode_down ref until reconfig is complete 1038e705c121SKalle Valo */ 1039e705c121SKalle Valo iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN); 1040e705c121SKalle Valo 1041fcb6b92aSChaya Rachel Ivgi iwl_mvm_stop_device(mvm); 1042e705c121SKalle Valo 1043e705c121SKalle Valo mvm->scan_status = 0; 1044e705c121SKalle Valo mvm->ps_disabled = false; 1045e705c121SKalle Valo mvm->calibrating = false; 1046e705c121SKalle Valo 1047e705c121SKalle Valo /* just in case one was running */ 1048305d236eSEliad Peller iwl_mvm_cleanup_roc_te(mvm); 1049e705c121SKalle Valo ieee80211_remain_on_channel_expired(mvm->hw); 1050e705c121SKalle Valo 1051e705c121SKalle Valo /* 1052e705c121SKalle Valo * cleanup all interfaces, even inactive ones, as some might have 1053e705c121SKalle Valo * gone down during the HW restart 1054e705c121SKalle Valo */ 1055e705c121SKalle Valo ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1056e705c121SKalle Valo 1057e705c121SKalle Valo mvm->p2p_device_vif = NULL; 10580ae98812SSara Sharon mvm->d0i3_ap_sta_id = IWL_MVM_INVALID_STA; 1059e705c121SKalle Valo 1060e705c121SKalle Valo iwl_mvm_reset_phy_ctxts(mvm); 10619c3deeb5SLuca Coelho memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1062e705c121SKalle Valo memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); 106324afba76SLiad Kaufman memset(mvm->sta_deferred_frames, 0, sizeof(mvm->sta_deferred_frames)); 1064e705c121SKalle Valo memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained)); 1065e705c121SKalle Valo memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1066e705c121SKalle Valo memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1067e705c121SKalle Valo 1068e705c121SKalle Valo ieee80211_wake_queues(mvm->hw); 1069e705c121SKalle Valo 1070e705c121SKalle Valo /* clear any stale d0i3 state */ 1071e705c121SKalle Valo clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); 1072e705c121SKalle Valo 1073e705c121SKalle Valo mvm->vif_count = 0; 1074e705c121SKalle Valo mvm->rx_ba_sessions = 0; 1075e705c121SKalle Valo mvm->fw_dbg_conf = FW_DBG_INVALID; 1076e705c121SKalle Valo 1077e705c121SKalle Valo /* keep statistics ticking */ 1078e705c121SKalle Valo iwl_mvm_accu_radio_stats(mvm); 1079e705c121SKalle Valo } 1080e705c121SKalle Valo 1081e705c121SKalle Valo int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1082e705c121SKalle Valo { 1083e705c121SKalle Valo int ret; 1084e705c121SKalle Valo 1085e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1086e705c121SKalle Valo 1087bf8b286fSJohannes Berg if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1088bf8b286fSJohannes Berg /* 1089bf8b286fSJohannes Berg * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1090bf8b286fSJohannes Berg * so later code will - from now on - see that we're doing it. 1091bf8b286fSJohannes Berg */ 1092bf8b286fSJohannes Berg set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1093bf8b286fSJohannes Berg clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1094e705c121SKalle Valo /* Clean up some internal and mac80211 state on restart */ 1095e705c121SKalle Valo iwl_mvm_restart_cleanup(mvm); 1096a42b2af3SLuca Coelho } else { 1097a42b2af3SLuca Coelho /* Hold the reference to prevent runtime suspend while 1098a42b2af3SLuca Coelho * the start procedure runs. It's a bit confusing 1099a42b2af3SLuca Coelho * that the UCODE_DOWN reference is taken, but it just 1100a42b2af3SLuca Coelho * means "UCODE is not UP yet". ( TODO: rename this 1101a42b2af3SLuca Coelho * reference). 1102a42b2af3SLuca Coelho */ 1103a42b2af3SLuca Coelho iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); 1104a42b2af3SLuca Coelho } 1105e705c121SKalle Valo ret = iwl_mvm_up(mvm); 1106e705c121SKalle Valo 1107e705c121SKalle Valo if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1108e705c121SKalle Valo /* Something went wrong - we need to finish some cleanup 1109e705c121SKalle Valo * that normally iwl_mvm_mac_restart_complete() below 1110e705c121SKalle Valo * would do. 1111e705c121SKalle Valo */ 1112e705c121SKalle Valo clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1113e705c121SKalle Valo iwl_mvm_d0i3_enable_tx(mvm, NULL); 1114e705c121SKalle Valo } 1115e705c121SKalle Valo 1116e705c121SKalle Valo return ret; 1117e705c121SKalle Valo } 1118e705c121SKalle Valo 1119e705c121SKalle Valo static int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1120e705c121SKalle Valo { 1121e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1122e705c121SKalle Valo int ret; 1123e705c121SKalle Valo 1124e705c121SKalle Valo /* Some hw restart cleanups must not hold the mutex */ 1125e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1126e705c121SKalle Valo /* 1127e705c121SKalle Valo * Make sure we are out of d0i3. This is needed 1128e705c121SKalle Valo * to make sure the reference accounting is correct 1129e705c121SKalle Valo * (and there is no stale d0i3_exit_work). 1130e705c121SKalle Valo */ 1131e705c121SKalle Valo wait_event_timeout(mvm->d0i3_exit_waitq, 1132e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_IN_D0I3, 1133e705c121SKalle Valo &mvm->status), 1134e705c121SKalle Valo HZ); 1135e705c121SKalle Valo } 1136e705c121SKalle Valo 1137e705c121SKalle Valo mutex_lock(&mvm->mutex); 1138e705c121SKalle Valo ret = __iwl_mvm_mac_start(mvm); 1139e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1140e705c121SKalle Valo 1141e705c121SKalle Valo return ret; 1142e705c121SKalle Valo } 1143e705c121SKalle Valo 1144e705c121SKalle Valo static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1145e705c121SKalle Valo { 1146e705c121SKalle Valo int ret; 1147e705c121SKalle Valo 1148e705c121SKalle Valo mutex_lock(&mvm->mutex); 1149e705c121SKalle Valo 1150e705c121SKalle Valo clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1151e705c121SKalle Valo iwl_mvm_d0i3_enable_tx(mvm, NULL); 1152e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, true, NULL); 1153e705c121SKalle Valo if (ret) 1154e705c121SKalle Valo IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1155e705c121SKalle Valo ret); 1156e705c121SKalle Valo 1157e705c121SKalle Valo /* allow transport/FW low power modes */ 1158e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN); 1159e705c121SKalle Valo 1160e705c121SKalle Valo /* 1161e705c121SKalle Valo * If we have TDLS peers, remove them. We don't know the last seqno/PN 1162e705c121SKalle Valo * of packets the FW sent out, so we must reconnect. 1163e705c121SKalle Valo */ 1164e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 1165e705c121SKalle Valo 1166e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1167e705c121SKalle Valo } 1168e705c121SKalle Valo 1169e705c121SKalle Valo static void iwl_mvm_resume_complete(struct iwl_mvm *mvm) 1170e705c121SKalle Valo { 1171b7282643SLuca Coelho if (iwl_mvm_is_d0i3_supported(mvm) && 1172b7282643SLuca Coelho iwl_mvm_enter_d0i3_on_suspend(mvm)) 1173b7282643SLuca Coelho WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq, 1174e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_IN_D0I3, 1175e705c121SKalle Valo &mvm->status), 1176b7282643SLuca Coelho HZ), 1177b7282643SLuca Coelho "D0i3 exit on resume timed out\n"); 1178e705c121SKalle Valo } 1179e705c121SKalle Valo 1180e705c121SKalle Valo static void 1181e705c121SKalle Valo iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1182e705c121SKalle Valo enum ieee80211_reconfig_type reconfig_type) 1183e705c121SKalle Valo { 1184e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1185e705c121SKalle Valo 1186e705c121SKalle Valo switch (reconfig_type) { 1187e705c121SKalle Valo case IEEE80211_RECONFIG_TYPE_RESTART: 1188e705c121SKalle Valo iwl_mvm_restart_complete(mvm); 1189e705c121SKalle Valo break; 1190e705c121SKalle Valo case IEEE80211_RECONFIG_TYPE_SUSPEND: 1191e705c121SKalle Valo iwl_mvm_resume_complete(mvm); 1192e705c121SKalle Valo break; 1193e705c121SKalle Valo } 1194e705c121SKalle Valo } 1195e705c121SKalle Valo 1196e705c121SKalle Valo void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1197e705c121SKalle Valo { 1198e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1199e705c121SKalle Valo 1200e705c121SKalle Valo /* firmware counters are obviously reset now, but we shouldn't 1201e705c121SKalle Valo * partially track so also clear the fw_reset_accu counters. 1202e705c121SKalle Valo */ 1203e705c121SKalle Valo memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1204e705c121SKalle Valo 1205e705c121SKalle Valo /* async_handlers_wk is now blocked */ 1206e705c121SKalle Valo 1207e705c121SKalle Valo /* 1208e705c121SKalle Valo * The work item could be running or queued if the 1209e705c121SKalle Valo * ROC time event stops just as we get here. 1210e705c121SKalle Valo */ 1211e705c121SKalle Valo flush_work(&mvm->roc_done_wk); 1212e705c121SKalle Valo 1213fcb6b92aSChaya Rachel Ivgi iwl_mvm_stop_device(mvm); 1214e705c121SKalle Valo 1215e705c121SKalle Valo iwl_mvm_async_handlers_purge(mvm); 1216e705c121SKalle Valo /* async_handlers_list is empty and will stay empty: HW is stopped */ 1217e705c121SKalle Valo 1218e705c121SKalle Valo /* the fw is stopped, the aux sta is dead: clean up driver state */ 1219e705c121SKalle Valo iwl_mvm_del_aux_sta(mvm); 1220e705c121SKalle Valo 1221e705c121SKalle Valo /* 1222e705c121SKalle Valo * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete() 1223e705c121SKalle Valo * won't be called in this case). 1224e705c121SKalle Valo * But make sure to cleanup interfaces that have gone down before/during 1225e705c121SKalle Valo * HW restart was requested. 1226e705c121SKalle Valo */ 1227e705c121SKalle Valo if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1228e705c121SKalle Valo ieee80211_iterate_interfaces(mvm->hw, 0, 1229e705c121SKalle Valo iwl_mvm_cleanup_iterator, mvm); 1230e705c121SKalle Valo 1231e705c121SKalle Valo /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1232e705c121SKalle Valo * make sure there's nothing left there and warn if any is found. 1233e705c121SKalle Valo */ 1234e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1235e705c121SKalle Valo int i; 1236e705c121SKalle Valo 1237e705c121SKalle Valo for (i = 0; i < mvm->max_scans; i++) { 1238e705c121SKalle Valo if (WARN_ONCE(mvm->scan_uid_status[i], 1239e705c121SKalle Valo "UMAC scan UID %d status was not cleaned\n", 1240e705c121SKalle Valo i)) 1241e705c121SKalle Valo mvm->scan_uid_status[i] = 0; 1242e705c121SKalle Valo } 1243e705c121SKalle Valo } 1244e705c121SKalle Valo } 1245e705c121SKalle Valo 1246e705c121SKalle Valo static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1247e705c121SKalle Valo { 1248e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1249e705c121SKalle Valo 1250e705c121SKalle Valo flush_work(&mvm->d0i3_exit_work); 1251e705c121SKalle Valo flush_work(&mvm->async_handlers_wk); 125224afba76SLiad Kaufman flush_work(&mvm->add_stream_wk); 1253771147b0SJohannes Berg 1254771147b0SJohannes Berg /* 1255771147b0SJohannes Berg * Lock and clear the firmware running bit here already, so that 1256771147b0SJohannes Berg * new commands coming in elsewhere, e.g. from debugfs, will not 1257771147b0SJohannes Berg * be able to proceed. This is important here because one of those 1258771147b0SJohannes Berg * debugfs files causes the fw_dump_wk to be triggered, and if we 1259771147b0SJohannes Berg * don't stop debugfs accesses before canceling that it could be 1260771147b0SJohannes Berg * retriggered after we flush it but before we've cleared the bit. 1261771147b0SJohannes Berg */ 1262771147b0SJohannes Berg clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1263771147b0SJohannes Berg 1264e705c121SKalle Valo cancel_delayed_work_sync(&mvm->fw_dump_wk); 1265d3a108a4SAndrei Otcheretianski cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 126669e04642SLuca Coelho cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1267e705c121SKalle Valo iwl_mvm_free_fw_dump_desc(mvm); 1268e705c121SKalle Valo 1269e705c121SKalle Valo mutex_lock(&mvm->mutex); 1270e705c121SKalle Valo __iwl_mvm_mac_stop(mvm); 1271e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1272e705c121SKalle Valo 1273e705c121SKalle Valo /* 1274e705c121SKalle Valo * The worker might have been waiting for the mutex, let it run and 1275e705c121SKalle Valo * discover that its list is now empty. 1276e705c121SKalle Valo */ 1277e705c121SKalle Valo cancel_work_sync(&mvm->async_handlers_wk); 1278e705c121SKalle Valo } 1279e705c121SKalle Valo 1280e705c121SKalle Valo static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1281e705c121SKalle Valo { 1282e705c121SKalle Valo u16 i; 1283e705c121SKalle Valo 1284e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1285e705c121SKalle Valo 1286e705c121SKalle Valo for (i = 0; i < NUM_PHY_CTX; i++) 1287e705c121SKalle Valo if (!mvm->phy_ctxts[i].ref) 1288e705c121SKalle Valo return &mvm->phy_ctxts[i]; 1289e705c121SKalle Valo 1290e705c121SKalle Valo IWL_ERR(mvm, "No available PHY context\n"); 1291e705c121SKalle Valo return NULL; 1292e705c121SKalle Valo } 1293e705c121SKalle Valo 1294e705c121SKalle Valo static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1295e705c121SKalle Valo s16 tx_power) 1296e705c121SKalle Valo { 1297e705c121SKalle Valo struct iwl_dev_tx_power_cmd cmd = { 12984b87e5afSLuca Coelho .v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 12994b87e5afSLuca Coelho .v3.mac_context_id = 1300e705c121SKalle Valo cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 13014b87e5afSLuca Coelho .v3.pwr_restriction = cpu_to_le16(8 * tx_power), 1302e705c121SKalle Valo }; 1303e705c121SKalle Valo int len = sizeof(cmd); 1304e705c121SKalle Valo 1305e705c121SKalle Valo if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 13064b87e5afSLuca Coelho cmd.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1307e705c121SKalle Valo 130855bfa4b9SLuca Coelho if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 130955bfa4b9SLuca Coelho len = sizeof(cmd.v3); 1310e705c121SKalle Valo 1311e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); 1312e705c121SKalle Valo } 1313e705c121SKalle Valo 1314e705c121SKalle Valo static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1315e705c121SKalle Valo struct ieee80211_vif *vif) 1316e705c121SKalle Valo { 1317e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1318e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1319e705c121SKalle Valo int ret; 1320e705c121SKalle Valo 1321e705c121SKalle Valo mvmvif->mvm = mvm; 1322e705c121SKalle Valo 1323e705c121SKalle Valo /* 1324e705c121SKalle Valo * make sure D0i3 exit is completed, otherwise a target access 1325e705c121SKalle Valo * during tx queue configuration could be done when still in 1326e705c121SKalle Valo * D0i3 state. 1327e705c121SKalle Valo */ 1328e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF); 1329e705c121SKalle Valo if (ret) 1330e705c121SKalle Valo return ret; 1331e705c121SKalle Valo 1332e705c121SKalle Valo /* 1333e705c121SKalle Valo * Not much to do here. The stack will not allow interface 1334e705c121SKalle Valo * types or combinations that we didn't advertise, so we 1335e705c121SKalle Valo * don't really have to check the types. 1336e705c121SKalle Valo */ 1337e705c121SKalle Valo 1338e705c121SKalle Valo mutex_lock(&mvm->mutex); 1339e705c121SKalle Valo 1340e705c121SKalle Valo /* make sure that beacon statistics don't go backwards with FW reset */ 1341e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1342e705c121SKalle Valo mvmvif->beacon_stats.accu_num_beacons += 1343e705c121SKalle Valo mvmvif->beacon_stats.num_beacons; 1344e705c121SKalle Valo 1345e705c121SKalle Valo /* Allocate resources for the MAC context, and add it to the fw */ 1346e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1347e705c121SKalle Valo if (ret) 1348e705c121SKalle Valo goto out_unlock; 1349e705c121SKalle Valo 1350e705c121SKalle Valo /* Counting number of interfaces is needed for legacy PM */ 1351e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1352e705c121SKalle Valo mvm->vif_count++; 1353e705c121SKalle Valo 1354e705c121SKalle Valo /* 1355e705c121SKalle Valo * The AP binding flow can be done only after the beacon 1356e705c121SKalle Valo * template is configured (which happens only in the mac80211 1357e705c121SKalle Valo * start_ap() flow), and adding the broadcast station can happen 1358e705c121SKalle Valo * only after the binding. 1359e705c121SKalle Valo * In addition, since modifying the MAC before adding a bcast 1360e705c121SKalle Valo * station is not allowed by the FW, delay the adding of MAC context to 1361e705c121SKalle Valo * the point where we can also add the bcast station. 1362e705c121SKalle Valo * In short: there's not much we can do at this point, other than 1363e705c121SKalle Valo * allocating resources :) 1364e705c121SKalle Valo */ 1365e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP || 1366e705c121SKalle Valo vif->type == NL80211_IFTYPE_ADHOC) { 1367e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1368e705c121SKalle Valo if (ret) { 1369e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1370e705c121SKalle Valo goto out_release; 1371e705c121SKalle Valo } 1372e705c121SKalle Valo 137326d6c16bSSara Sharon if (iwl_mvm_is_dqa_supported(mvm)) { 137426d6c16bSSara Sharon /* 137526d6c16bSSara Sharon * Only queue for this station is the mcast queue, 137626d6c16bSSara Sharon * which shouldn't be in TFD mask anyway 137726d6c16bSSara Sharon */ 137826d6c16bSSara Sharon ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta, 1379ced19f26SSara Sharon 0, vif->type, 1380ced19f26SSara Sharon IWL_STA_MULTICAST); 138126d6c16bSSara Sharon if (ret) 138226d6c16bSSara Sharon goto out_release; 138326d6c16bSSara Sharon } 138426d6c16bSSara Sharon 1385e705c121SKalle Valo iwl_mvm_vif_dbgfs_register(mvm, vif); 1386e705c121SKalle Valo goto out_unlock; 1387e705c121SKalle Valo } 1388e705c121SKalle Valo 1389e705c121SKalle Valo mvmvif->features |= hw->netdev_features; 1390e705c121SKalle Valo 1391e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1392e705c121SKalle Valo if (ret) 1393e705c121SKalle Valo goto out_release; 1394e705c121SKalle Valo 1395e705c121SKalle Valo ret = iwl_mvm_power_update_mac(mvm); 1396e705c121SKalle Valo if (ret) 1397e705c121SKalle Valo goto out_remove_mac; 1398e705c121SKalle Valo 1399e705c121SKalle Valo /* beacon filtering */ 1400e705c121SKalle Valo ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1401e705c121SKalle Valo if (ret) 1402e705c121SKalle Valo goto out_remove_mac; 1403e705c121SKalle Valo 1404e705c121SKalle Valo if (!mvm->bf_allowed_vif && 1405e705c121SKalle Valo vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1406e705c121SKalle Valo mvm->bf_allowed_vif = mvmvif; 1407e705c121SKalle Valo vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1408e705c121SKalle Valo IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1409e705c121SKalle Valo } 1410e705c121SKalle Valo 1411e705c121SKalle Valo /* 1412e705c121SKalle Valo * P2P_DEVICE interface does not have a channel context assigned to it, 1413e705c121SKalle Valo * so a dedicated PHY context is allocated to it and the corresponding 1414e705c121SKalle Valo * MAC context is bound to it at this stage. 1415e705c121SKalle Valo */ 1416e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1417e705c121SKalle Valo 1418e705c121SKalle Valo mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1419e705c121SKalle Valo if (!mvmvif->phy_ctxt) { 1420e705c121SKalle Valo ret = -ENOSPC; 1421e705c121SKalle Valo goto out_free_bf; 1422e705c121SKalle Valo } 1423e705c121SKalle Valo 1424e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 1425e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 1426e705c121SKalle Valo if (ret) 1427e705c121SKalle Valo goto out_unref_phy; 1428e705c121SKalle Valo 1429e705c121SKalle Valo ret = iwl_mvm_add_bcast_sta(mvm, vif); 1430e705c121SKalle Valo if (ret) 1431e705c121SKalle Valo goto out_unbind; 1432e705c121SKalle Valo 1433e705c121SKalle Valo /* Save a pointer to p2p device vif, so it can later be used to 1434e705c121SKalle Valo * update the p2p device MAC when a GO is started/stopped */ 1435e705c121SKalle Valo mvm->p2p_device_vif = vif; 1436e705c121SKalle Valo } 1437e705c121SKalle Valo 1438e705c121SKalle Valo iwl_mvm_vif_dbgfs_register(mvm, vif); 1439e705c121SKalle Valo goto out_unlock; 1440e705c121SKalle Valo 1441e705c121SKalle Valo out_unbind: 1442e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 1443e705c121SKalle Valo out_unref_phy: 1444e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1445e705c121SKalle Valo out_free_bf: 1446e705c121SKalle Valo if (mvm->bf_allowed_vif == mvmvif) { 1447e705c121SKalle Valo mvm->bf_allowed_vif = NULL; 1448e705c121SKalle Valo vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1449e705c121SKalle Valo IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1450e705c121SKalle Valo } 1451e705c121SKalle Valo out_remove_mac: 1452e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 1453e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 1454e705c121SKalle Valo out_release: 1455e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1456e705c121SKalle Valo mvm->vif_count--; 1457e705c121SKalle Valo 1458e705c121SKalle Valo iwl_mvm_mac_ctxt_release(mvm, vif); 1459e705c121SKalle Valo out_unlock: 1460e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1461e705c121SKalle Valo 1462e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF); 1463e705c121SKalle Valo 1464e705c121SKalle Valo return ret; 1465e705c121SKalle Valo } 1466e705c121SKalle Valo 1467e705c121SKalle Valo static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1468e705c121SKalle Valo struct ieee80211_vif *vif) 1469e705c121SKalle Valo { 1470e705c121SKalle Valo u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif); 1471e705c121SKalle Valo 1472d49394a1SSara Sharon if (tfd_msk && !iwl_mvm_is_dqa_supported(mvm)) { 1473e705c121SKalle Valo /* 1474e705c121SKalle Valo * mac80211 first removes all the stations of the vif and 1475e705c121SKalle Valo * then removes the vif. When it removes a station it also 1476e705c121SKalle Valo * flushes the AMPDU session. So by now, all the AMPDU sessions 1477e705c121SKalle Valo * of all the stations of this vif are closed, and the queues 1478e705c121SKalle Valo * of these AMPDU sessions are properly closed. 1479e705c121SKalle Valo * We still need to take care of the shared queues of the vif. 1480e705c121SKalle Valo * Flush them here. 1481d49394a1SSara Sharon * For DQA mode there is no need - broacast and multicast queue 1482d49394a1SSara Sharon * are flushed separately. 1483e705c121SKalle Valo */ 1484e705c121SKalle Valo mutex_lock(&mvm->mutex); 1485e705c121SKalle Valo iwl_mvm_flush_tx_path(mvm, tfd_msk, 0); 1486e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1487e705c121SKalle Valo 1488e705c121SKalle Valo /* 1489e705c121SKalle Valo * There are transports that buffer a few frames in the host. 1490e705c121SKalle Valo * For these, the flush above isn't enough since while we were 1491e705c121SKalle Valo * flushing, the transport might have sent more frames to the 1492e705c121SKalle Valo * device. To solve this, wait here until the transport is 1493e705c121SKalle Valo * empty. Technically, this could have replaced the flush 1494e705c121SKalle Valo * above, but flush is much faster than draining. So flush 1495e705c121SKalle Valo * first, and drain to make sure we have no frames in the 1496e705c121SKalle Valo * transport anymore. 1497e705c121SKalle Valo * If a station still had frames on the shared queues, it is 1498e705c121SKalle Valo * already marked as draining, so to complete the draining, we 1499e705c121SKalle Valo * just need to wait until the transport is empty. 1500e705c121SKalle Valo */ 1501a1a57877SSara Sharon iwl_trans_wait_tx_queues_empty(mvm->trans, tfd_msk); 1502e705c121SKalle Valo } 1503e705c121SKalle Valo 1504e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1505e705c121SKalle Valo /* 1506e705c121SKalle Valo * Flush the ROC worker which will flush the OFFCHANNEL queue. 1507e705c121SKalle Valo * We assume here that all the packets sent to the OFFCHANNEL 1508e705c121SKalle Valo * queue are sent in ROC session. 1509e705c121SKalle Valo */ 1510e705c121SKalle Valo flush_work(&mvm->roc_done_wk); 1511e705c121SKalle Valo } else { 1512e705c121SKalle Valo /* 1513e705c121SKalle Valo * By now, all the AC queues are empty. The AGG queues are 1514e705c121SKalle Valo * empty too. We already got all the Tx responses for all the 1515e705c121SKalle Valo * packets in the queues. The drain work can have been 1516e705c121SKalle Valo * triggered. Flush it. 1517e705c121SKalle Valo */ 1518e705c121SKalle Valo flush_work(&mvm->sta_drained_wk); 1519e705c121SKalle Valo } 1520e705c121SKalle Valo } 1521e705c121SKalle Valo 1522e705c121SKalle Valo static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1523e705c121SKalle Valo struct ieee80211_vif *vif) 1524e705c121SKalle Valo { 1525e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1526e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1527e705c121SKalle Valo 1528e705c121SKalle Valo iwl_mvm_prepare_mac_removal(mvm, vif); 1529e705c121SKalle Valo 1530e705c121SKalle Valo mutex_lock(&mvm->mutex); 1531e705c121SKalle Valo 1532e705c121SKalle Valo if (mvm->bf_allowed_vif == mvmvif) { 1533e705c121SKalle Valo mvm->bf_allowed_vif = NULL; 1534e705c121SKalle Valo vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1535e705c121SKalle Valo IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1536e705c121SKalle Valo } 1537e705c121SKalle Valo 1538e705c121SKalle Valo iwl_mvm_vif_dbgfs_clean(mvm, vif); 1539e705c121SKalle Valo 1540e705c121SKalle Valo /* 1541e705c121SKalle Valo * For AP/GO interface, the tear down of the resources allocated to the 1542e705c121SKalle Valo * interface is be handled as part of the stop_ap flow. 1543e705c121SKalle Valo */ 1544e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP || 1545e705c121SKalle Valo vif->type == NL80211_IFTYPE_ADHOC) { 1546e705c121SKalle Valo #ifdef CONFIG_NL80211_TESTMODE 1547e705c121SKalle Valo if (vif == mvm->noa_vif) { 1548e705c121SKalle Valo mvm->noa_vif = NULL; 1549e705c121SKalle Valo mvm->noa_duration = 0; 1550e705c121SKalle Valo } 1551e705c121SKalle Valo #endif 155226d6c16bSSara Sharon iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta); 1553e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif); 1554e705c121SKalle Valo goto out_release; 1555e705c121SKalle Valo } 1556e705c121SKalle Valo 1557e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1558e705c121SKalle Valo mvm->p2p_device_vif = NULL; 1559e705c121SKalle Valo iwl_mvm_rm_bcast_sta(mvm, vif); 1560e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 1561e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1562e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 1563e705c121SKalle Valo } 1564e705c121SKalle Valo 1565e705c121SKalle Valo if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) 1566e705c121SKalle Valo mvm->vif_count--; 1567e705c121SKalle Valo 1568e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 1569e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 1570e705c121SKalle Valo 1571e705c121SKalle Valo out_release: 1572e705c121SKalle Valo iwl_mvm_mac_ctxt_release(mvm, vif); 1573e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1574e705c121SKalle Valo } 1575e705c121SKalle Valo 1576e705c121SKalle Valo static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) 1577e705c121SKalle Valo { 1578e705c121SKalle Valo return 0; 1579e705c121SKalle Valo } 1580e705c121SKalle Valo 1581e705c121SKalle Valo struct iwl_mvm_mc_iter_data { 1582e705c121SKalle Valo struct iwl_mvm *mvm; 1583e705c121SKalle Valo int port_id; 1584e705c121SKalle Valo }; 1585e705c121SKalle Valo 1586e705c121SKalle Valo static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1587e705c121SKalle Valo struct ieee80211_vif *vif) 1588e705c121SKalle Valo { 1589e705c121SKalle Valo struct iwl_mvm_mc_iter_data *data = _data; 1590e705c121SKalle Valo struct iwl_mvm *mvm = data->mvm; 1591e705c121SKalle Valo struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1592e705c121SKalle Valo int ret, len; 1593e705c121SKalle Valo 1594e705c121SKalle Valo /* if we don't have free ports, mcast frames will be dropped */ 1595e705c121SKalle Valo if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1596e705c121SKalle Valo return; 1597e705c121SKalle Valo 1598e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || 1599e705c121SKalle Valo !vif->bss_conf.assoc) 1600e705c121SKalle Valo return; 1601e705c121SKalle Valo 1602e705c121SKalle Valo cmd->port_id = data->port_id++; 1603e705c121SKalle Valo memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1604e705c121SKalle Valo len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1605e705c121SKalle Valo 1606e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd); 1607e705c121SKalle Valo if (ret) 1608e705c121SKalle Valo IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1609e705c121SKalle Valo } 1610e705c121SKalle Valo 1611e705c121SKalle Valo static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1612e705c121SKalle Valo { 1613e705c121SKalle Valo struct iwl_mvm_mc_iter_data iter_data = { 1614e705c121SKalle Valo .mvm = mvm, 1615e705c121SKalle Valo }; 1616e705c121SKalle Valo 1617e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1618e705c121SKalle Valo 1619e705c121SKalle Valo if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1620e705c121SKalle Valo return; 1621e705c121SKalle Valo 1622e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 1623e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1624e705c121SKalle Valo iwl_mvm_mc_iface_iterator, &iter_data); 1625e705c121SKalle Valo } 1626e705c121SKalle Valo 1627e705c121SKalle Valo static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1628e705c121SKalle Valo struct netdev_hw_addr_list *mc_list) 1629e705c121SKalle Valo { 1630e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1631e705c121SKalle Valo struct iwl_mcast_filter_cmd *cmd; 1632e705c121SKalle Valo struct netdev_hw_addr *addr; 1633e705c121SKalle Valo int addr_count; 1634e705c121SKalle Valo bool pass_all; 1635e705c121SKalle Valo int len; 1636e705c121SKalle Valo 1637e705c121SKalle Valo addr_count = netdev_hw_addr_list_count(mc_list); 1638e705c121SKalle Valo pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1639e705c121SKalle Valo IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1640e705c121SKalle Valo if (pass_all) 1641e705c121SKalle Valo addr_count = 0; 1642e705c121SKalle Valo 1643e705c121SKalle Valo len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1644e705c121SKalle Valo cmd = kzalloc(len, GFP_ATOMIC); 1645e705c121SKalle Valo if (!cmd) 1646e705c121SKalle Valo return 0; 1647e705c121SKalle Valo 1648e705c121SKalle Valo if (pass_all) { 1649e705c121SKalle Valo cmd->pass_all = 1; 1650e705c121SKalle Valo return (u64)(unsigned long)cmd; 1651e705c121SKalle Valo } 1652e705c121SKalle Valo 1653e705c121SKalle Valo netdev_hw_addr_list_for_each(addr, mc_list) { 1654e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1655e705c121SKalle Valo cmd->count, addr->addr); 1656e705c121SKalle Valo memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1657e705c121SKalle Valo addr->addr, ETH_ALEN); 1658e705c121SKalle Valo cmd->count++; 1659e705c121SKalle Valo } 1660e705c121SKalle Valo 1661e705c121SKalle Valo return (u64)(unsigned long)cmd; 1662e705c121SKalle Valo } 1663e705c121SKalle Valo 1664e705c121SKalle Valo static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1665e705c121SKalle Valo unsigned int changed_flags, 1666e705c121SKalle Valo unsigned int *total_flags, 1667e705c121SKalle Valo u64 multicast) 1668e705c121SKalle Valo { 1669e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1670e705c121SKalle Valo struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1671e705c121SKalle Valo 1672e705c121SKalle Valo mutex_lock(&mvm->mutex); 1673e705c121SKalle Valo 1674e705c121SKalle Valo /* replace previous configuration */ 1675e705c121SKalle Valo kfree(mvm->mcast_filter_cmd); 1676e705c121SKalle Valo mvm->mcast_filter_cmd = cmd; 1677e705c121SKalle Valo 1678e705c121SKalle Valo if (!cmd) 1679e705c121SKalle Valo goto out; 1680e705c121SKalle Valo 1681e705c121SKalle Valo iwl_mvm_recalc_multicast(mvm); 1682e705c121SKalle Valo out: 1683e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1684e705c121SKalle Valo *total_flags = 0; 1685e705c121SKalle Valo } 1686e705c121SKalle Valo 1687e705c121SKalle Valo static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1688e705c121SKalle Valo struct ieee80211_vif *vif, 1689e705c121SKalle Valo unsigned int filter_flags, 1690e705c121SKalle Valo unsigned int changed_flags) 1691e705c121SKalle Valo { 1692e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1693e705c121SKalle Valo 1694e705c121SKalle Valo /* We support only filter for probe requests */ 1695e705c121SKalle Valo if (!(changed_flags & FIF_PROBE_REQ)) 1696e705c121SKalle Valo return; 1697e705c121SKalle Valo 1698e705c121SKalle Valo /* Supported only for p2p client interfaces */ 1699e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || 1700e705c121SKalle Valo !vif->p2p) 1701e705c121SKalle Valo return; 1702e705c121SKalle Valo 1703e705c121SKalle Valo mutex_lock(&mvm->mutex); 1704e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1705e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1706e705c121SKalle Valo } 1707e705c121SKalle Valo 1708e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1709e705c121SKalle Valo struct iwl_bcast_iter_data { 1710e705c121SKalle Valo struct iwl_mvm *mvm; 1711e705c121SKalle Valo struct iwl_bcast_filter_cmd *cmd; 1712e705c121SKalle Valo u8 current_filter; 1713e705c121SKalle Valo }; 1714e705c121SKalle Valo 1715e705c121SKalle Valo static void 1716e705c121SKalle Valo iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, 1717e705c121SKalle Valo const struct iwl_fw_bcast_filter *in_filter, 1718e705c121SKalle Valo struct iwl_fw_bcast_filter *out_filter) 1719e705c121SKalle Valo { 1720e705c121SKalle Valo struct iwl_fw_bcast_filter_attr *attr; 1721e705c121SKalle Valo int i; 1722e705c121SKalle Valo 1723e705c121SKalle Valo memcpy(out_filter, in_filter, sizeof(*out_filter)); 1724e705c121SKalle Valo 1725e705c121SKalle Valo for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { 1726e705c121SKalle Valo attr = &out_filter->attrs[i]; 1727e705c121SKalle Valo 1728e705c121SKalle Valo if (!attr->mask) 1729e705c121SKalle Valo break; 1730e705c121SKalle Valo 1731e705c121SKalle Valo switch (attr->reserved1) { 1732e705c121SKalle Valo case cpu_to_le16(BC_FILTER_MAGIC_IP): 1733e705c121SKalle Valo if (vif->bss_conf.arp_addr_cnt != 1) { 1734e705c121SKalle Valo attr->mask = 0; 1735e705c121SKalle Valo continue; 1736e705c121SKalle Valo } 1737e705c121SKalle Valo 1738e705c121SKalle Valo attr->val = vif->bss_conf.arp_addr_list[0]; 1739e705c121SKalle Valo break; 1740e705c121SKalle Valo case cpu_to_le16(BC_FILTER_MAGIC_MAC): 1741e705c121SKalle Valo attr->val = *(__be32 *)&vif->addr[2]; 1742e705c121SKalle Valo break; 1743e705c121SKalle Valo default: 1744e705c121SKalle Valo break; 1745e705c121SKalle Valo } 1746e705c121SKalle Valo attr->reserved1 = 0; 1747e705c121SKalle Valo out_filter->num_attrs++; 1748e705c121SKalle Valo } 1749e705c121SKalle Valo } 1750e705c121SKalle Valo 1751e705c121SKalle Valo static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, 1752e705c121SKalle Valo struct ieee80211_vif *vif) 1753e705c121SKalle Valo { 1754e705c121SKalle Valo struct iwl_bcast_iter_data *data = _data; 1755e705c121SKalle Valo struct iwl_mvm *mvm = data->mvm; 1756e705c121SKalle Valo struct iwl_bcast_filter_cmd *cmd = data->cmd; 1757e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1758e705c121SKalle Valo struct iwl_fw_bcast_mac *bcast_mac; 1759e705c121SKalle Valo int i; 1760e705c121SKalle Valo 1761e705c121SKalle Valo if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) 1762e705c121SKalle Valo return; 1763e705c121SKalle Valo 1764e705c121SKalle Valo bcast_mac = &cmd->macs[mvmvif->id]; 1765e705c121SKalle Valo 1766e705c121SKalle Valo /* 1767e705c121SKalle Valo * enable filtering only for associated stations, but not for P2P 1768e705c121SKalle Valo * Clients 1769e705c121SKalle Valo */ 1770e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || 1771e705c121SKalle Valo !vif->bss_conf.assoc) 1772e705c121SKalle Valo return; 1773e705c121SKalle Valo 1774e705c121SKalle Valo bcast_mac->default_discard = 1; 1775e705c121SKalle Valo 1776e705c121SKalle Valo /* copy all configured filters */ 1777e705c121SKalle Valo for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { 1778e705c121SKalle Valo /* 1779e705c121SKalle Valo * Make sure we don't exceed our filters limit. 1780e705c121SKalle Valo * if there is still a valid filter to be configured, 1781e705c121SKalle Valo * be on the safe side and just allow bcast for this mac. 1782e705c121SKalle Valo */ 1783e705c121SKalle Valo if (WARN_ON_ONCE(data->current_filter >= 1784e705c121SKalle Valo ARRAY_SIZE(cmd->filters))) { 1785e705c121SKalle Valo bcast_mac->default_discard = 0; 1786e705c121SKalle Valo bcast_mac->attached_filters = 0; 1787e705c121SKalle Valo break; 1788e705c121SKalle Valo } 1789e705c121SKalle Valo 1790e705c121SKalle Valo iwl_mvm_set_bcast_filter(vif, 1791e705c121SKalle Valo &mvm->bcast_filters[i], 1792e705c121SKalle Valo &cmd->filters[data->current_filter]); 1793e705c121SKalle Valo 1794e705c121SKalle Valo /* skip current filter if it contains no attributes */ 1795e705c121SKalle Valo if (!cmd->filters[data->current_filter].num_attrs) 1796e705c121SKalle Valo continue; 1797e705c121SKalle Valo 1798e705c121SKalle Valo /* attach the filter to current mac */ 1799e705c121SKalle Valo bcast_mac->attached_filters |= 1800e705c121SKalle Valo cpu_to_le16(BIT(data->current_filter)); 1801e705c121SKalle Valo 1802e705c121SKalle Valo data->current_filter++; 1803e705c121SKalle Valo } 1804e705c121SKalle Valo } 1805e705c121SKalle Valo 1806e705c121SKalle Valo bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, 1807e705c121SKalle Valo struct iwl_bcast_filter_cmd *cmd) 1808e705c121SKalle Valo { 1809e705c121SKalle Valo struct iwl_bcast_iter_data iter_data = { 1810e705c121SKalle Valo .mvm = mvm, 1811e705c121SKalle Valo .cmd = cmd, 1812e705c121SKalle Valo }; 1813e705c121SKalle Valo 1814e705c121SKalle Valo if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) 1815e705c121SKalle Valo return false; 1816e705c121SKalle Valo 1817e705c121SKalle Valo memset(cmd, 0, sizeof(*cmd)); 1818e705c121SKalle Valo cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); 1819e705c121SKalle Valo cmd->max_macs = ARRAY_SIZE(cmd->macs); 1820e705c121SKalle Valo 1821e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_DEBUGFS 1822e705c121SKalle Valo /* use debugfs filters/macs if override is configured */ 1823e705c121SKalle Valo if (mvm->dbgfs_bcast_filtering.override) { 1824e705c121SKalle Valo memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, 1825e705c121SKalle Valo sizeof(cmd->filters)); 1826e705c121SKalle Valo memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, 1827e705c121SKalle Valo sizeof(cmd->macs)); 1828e705c121SKalle Valo return true; 1829e705c121SKalle Valo } 1830e705c121SKalle Valo #endif 1831e705c121SKalle Valo 1832e705c121SKalle Valo /* if no filters are configured, do nothing */ 1833e705c121SKalle Valo if (!mvm->bcast_filters) 1834e705c121SKalle Valo return false; 1835e705c121SKalle Valo 1836e705c121SKalle Valo /* configure and attach these filters for each associated sta vif */ 1837e705c121SKalle Valo ieee80211_iterate_active_interfaces( 1838e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1839e705c121SKalle Valo iwl_mvm_bcast_filter_iterator, &iter_data); 1840e705c121SKalle Valo 1841e705c121SKalle Valo return true; 1842e705c121SKalle Valo } 184334672bb3SEliad Peller 184434672bb3SEliad Peller static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1845e705c121SKalle Valo { 1846e705c121SKalle Valo struct iwl_bcast_filter_cmd cmd; 1847e705c121SKalle Valo 1848e705c121SKalle Valo if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) 1849e705c121SKalle Valo return 0; 1850e705c121SKalle Valo 1851e705c121SKalle Valo if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1852e705c121SKalle Valo return 0; 1853e705c121SKalle Valo 1854e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1855e705c121SKalle Valo sizeof(cmd), &cmd); 1856e705c121SKalle Valo } 1857e705c121SKalle Valo #else 185834672bb3SEliad Peller static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1859e705c121SKalle Valo { 1860e705c121SKalle Valo return 0; 1861e705c121SKalle Valo } 1862e705c121SKalle Valo #endif 1863e705c121SKalle Valo 1864a07a8f37SSara Sharon static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, 1865a07a8f37SSara Sharon struct ieee80211_vif *vif) 1866a07a8f37SSara Sharon { 1867a07a8f37SSara Sharon struct iwl_mu_group_mgmt_cmd cmd = {}; 1868a07a8f37SSara Sharon 1869a07a8f37SSara Sharon memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1870a07a8f37SSara Sharon WLAN_MEMBERSHIP_LEN); 1871a07a8f37SSara Sharon memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1872a07a8f37SSara Sharon WLAN_USER_POSITION_LEN); 1873a07a8f37SSara Sharon 1874a07a8f37SSara Sharon return iwl_mvm_send_cmd_pdu(mvm, 1875a07a8f37SSara Sharon WIDE_ID(DATA_PATH_GROUP, 1876a07a8f37SSara Sharon UPDATE_MU_GROUPS_CMD), 1877a07a8f37SSara Sharon 0, sizeof(cmd), &cmd); 1878a07a8f37SSara Sharon } 1879a07a8f37SSara Sharon 1880f92659a1SSara Sharon static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1881f92659a1SSara Sharon struct ieee80211_vif *vif) 1882f92659a1SSara Sharon { 1883f92659a1SSara Sharon if (vif->mu_mimo_owner) { 1884f92659a1SSara Sharon struct iwl_mu_group_mgmt_notif *notif = _data; 1885f92659a1SSara Sharon 1886f92659a1SSara Sharon /* 1887f92659a1SSara Sharon * MU-MIMO Group Id action frame is little endian. We treat 1888f92659a1SSara Sharon * the data received from firmware as if it came from the 1889f92659a1SSara Sharon * action frame, so no conversion is needed. 1890f92659a1SSara Sharon */ 1891f92659a1SSara Sharon ieee80211_update_mu_groups(vif, 1892f92659a1SSara Sharon (u8 *)¬if->membership_status, 1893f92659a1SSara Sharon (u8 *)¬if->user_position); 1894f92659a1SSara Sharon } 1895f92659a1SSara Sharon } 1896f92659a1SSara Sharon 1897f92659a1SSara Sharon void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1898f92659a1SSara Sharon struct iwl_rx_cmd_buffer *rxb) 1899f92659a1SSara Sharon { 1900f92659a1SSara Sharon struct iwl_rx_packet *pkt = rxb_addr(rxb); 1901f92659a1SSara Sharon struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1902f92659a1SSara Sharon 1903f92659a1SSara Sharon ieee80211_iterate_active_interfaces_atomic( 1904f92659a1SSara Sharon mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1905f92659a1SSara Sharon iwl_mvm_mu_mimo_iface_iterator, notif); 1906f92659a1SSara Sharon } 1907f92659a1SSara Sharon 1908e705c121SKalle Valo static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 1909e705c121SKalle Valo struct ieee80211_vif *vif, 1910e705c121SKalle Valo struct ieee80211_bss_conf *bss_conf, 1911e705c121SKalle Valo u32 changes) 1912e705c121SKalle Valo { 1913e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1914e705c121SKalle Valo int ret; 1915e705c121SKalle Valo 1916e705c121SKalle Valo /* 1917e705c121SKalle Valo * Re-calculate the tsf id, as the master-slave relations depend on the 1918e705c121SKalle Valo * beacon interval, which was not known when the station interface was 1919e705c121SKalle Valo * added. 1920e705c121SKalle Valo */ 1921e705c121SKalle Valo if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) 1922e705c121SKalle Valo iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 1923e705c121SKalle Valo 192403098268SAviya Erenfeld if (changes & BSS_CHANGED_ASSOC && !bss_conf->assoc && 192503098268SAviya Erenfeld mvmvif->lqm_active) 192603098268SAviya Erenfeld iwl_mvm_send_lqm_cmd(vif, LQM_CMD_OPERATION_STOP_MEASUREMENT, 192703098268SAviya Erenfeld 0, 0); 192803098268SAviya Erenfeld 1929e705c121SKalle Valo /* 1930e705c121SKalle Valo * If we're not associated yet, take the (new) BSSID before associating 1931e705c121SKalle Valo * so the firmware knows. If we're already associated, then use the old 1932e705c121SKalle Valo * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 1933e705c121SKalle Valo * branch for disassociation below. 1934e705c121SKalle Valo */ 1935e705c121SKalle Valo if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 1936e705c121SKalle Valo memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 1937e705c121SKalle Valo 1938e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); 1939e705c121SKalle Valo if (ret) 1940e705c121SKalle Valo IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 1941e705c121SKalle Valo 1942e705c121SKalle Valo /* after sending it once, adopt mac80211 data */ 1943e705c121SKalle Valo memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 1944e705c121SKalle Valo mvmvif->associated = bss_conf->assoc; 1945e705c121SKalle Valo 1946e705c121SKalle Valo if (changes & BSS_CHANGED_ASSOC) { 1947e705c121SKalle Valo if (bss_conf->assoc) { 1948e705c121SKalle Valo /* clear statistics to get clean beacon counter */ 1949e705c121SKalle Valo iwl_mvm_request_statistics(mvm, true); 1950e705c121SKalle Valo memset(&mvmvif->beacon_stats, 0, 1951e705c121SKalle Valo sizeof(mvmvif->beacon_stats)); 1952e705c121SKalle Valo 1953e705c121SKalle Valo /* add quota for this interface */ 1954e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, true, NULL); 1955e705c121SKalle Valo if (ret) { 1956e705c121SKalle Valo IWL_ERR(mvm, "failed to update quotas\n"); 1957e705c121SKalle Valo return; 1958e705c121SKalle Valo } 1959e705c121SKalle Valo 1960e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 1961e705c121SKalle Valo &mvm->status)) { 1962e705c121SKalle Valo /* 1963e705c121SKalle Valo * If we're restarting then the firmware will 1964e705c121SKalle Valo * obviously have lost synchronisation with 1965e705c121SKalle Valo * the AP. It will attempt to synchronise by 1966e705c121SKalle Valo * itself, but we can make it more reliable by 1967e705c121SKalle Valo * scheduling a session protection time event. 1968e705c121SKalle Valo * 1969e705c121SKalle Valo * The firmware needs to receive a beacon to 1970e705c121SKalle Valo * catch up with synchronisation, use 110% of 1971e705c121SKalle Valo * the beacon interval. 1972e705c121SKalle Valo * 1973e705c121SKalle Valo * Set a large maximum delay to allow for more 1974e705c121SKalle Valo * than a single interface. 1975e705c121SKalle Valo */ 1976e705c121SKalle Valo u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 1977e705c121SKalle Valo iwl_mvm_protect_session(mvm, vif, dur, dur, 1978e705c121SKalle Valo 5 * dur, false); 1979e705c121SKalle Valo } 1980e705c121SKalle Valo 1981e705c121SKalle Valo iwl_mvm_sf_update(mvm, vif, false); 1982e705c121SKalle Valo iwl_mvm_power_vif_assoc(mvm, vif); 1983e705c121SKalle Valo if (vif->p2p) { 1984e705c121SKalle Valo iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT); 1985e705c121SKalle Valo iwl_mvm_update_smps(mvm, vif, 1986e705c121SKalle Valo IWL_MVM_SMPS_REQ_PROT, 1987e705c121SKalle Valo IEEE80211_SMPS_DYNAMIC); 1988e705c121SKalle Valo } 19890ae98812SSara Sharon } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 1990e705c121SKalle Valo /* 1991e705c121SKalle Valo * If update fails - SF might be running in associated 1992e705c121SKalle Valo * mode while disassociated - which is forbidden. 1993e705c121SKalle Valo */ 1994e705c121SKalle Valo WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false), 1995e705c121SKalle Valo "Failed to update SF upon disassociation\n"); 1996e705c121SKalle Valo 19976b28f978SEmmanuel Grumbach /* 19986b28f978SEmmanuel Grumbach * If we get an assert during the connection (after the 19996b28f978SEmmanuel Grumbach * station has been added, but before the vif is set 20006b28f978SEmmanuel Grumbach * to associated), mac80211 will re-add the station and 20016b28f978SEmmanuel Grumbach * then configure the vif. Since the vif is not 20026b28f978SEmmanuel Grumbach * associated, we would remove the station here and 20036b28f978SEmmanuel Grumbach * this would fail the recovery. 20046b28f978SEmmanuel Grumbach */ 20056b28f978SEmmanuel Grumbach if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 20066b28f978SEmmanuel Grumbach &mvm->status)) { 20076b28f978SEmmanuel Grumbach /* 20086b28f978SEmmanuel Grumbach * Remove AP station now that 20096b28f978SEmmanuel Grumbach * the MAC is unassoc 20106b28f978SEmmanuel Grumbach */ 20116b28f978SEmmanuel Grumbach ret = iwl_mvm_rm_sta_id(mvm, vif, 20126b28f978SEmmanuel Grumbach mvmvif->ap_sta_id); 2013e705c121SKalle Valo if (ret) 20146b28f978SEmmanuel Grumbach IWL_ERR(mvm, 20156b28f978SEmmanuel Grumbach "failed to remove AP station\n"); 2016e705c121SKalle Valo 2017e705c121SKalle Valo if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) 20186b28f978SEmmanuel Grumbach mvm->d0i3_ap_sta_id = 20196b28f978SEmmanuel Grumbach IWL_MVM_INVALID_STA; 20200ae98812SSara Sharon mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 20216b28f978SEmmanuel Grumbach } 20226b28f978SEmmanuel Grumbach 2023e705c121SKalle Valo /* remove quota for this interface */ 2024e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, false, NULL); 2025e705c121SKalle Valo if (ret) 2026e705c121SKalle Valo IWL_ERR(mvm, "failed to update quotas\n"); 2027e705c121SKalle Valo 2028e705c121SKalle Valo if (vif->p2p) 2029e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT); 2030e705c121SKalle Valo 2031e705c121SKalle Valo /* this will take the cleared BSSID from bss_conf */ 2032e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2033e705c121SKalle Valo if (ret) 2034e705c121SKalle Valo IWL_ERR(mvm, 2035e705c121SKalle Valo "failed to update MAC %pM (clear after unassoc)\n", 2036e705c121SKalle Valo vif->addr); 2037e705c121SKalle Valo } 2038e705c121SKalle Valo 2039a07a8f37SSara Sharon /* 2040a07a8f37SSara Sharon * The firmware tracks the MU-MIMO group on its own. 2041f92659a1SSara Sharon * However, on HW restart we should restore this data. 2042a07a8f37SSara Sharon */ 2043a07a8f37SSara Sharon if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2044f92659a1SSara Sharon (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) { 2045a07a8f37SSara Sharon ret = iwl_mvm_update_mu_groups(mvm, vif); 2046a07a8f37SSara Sharon if (ret) 2047a07a8f37SSara Sharon IWL_ERR(mvm, 2048a07a8f37SSara Sharon "failed to update VHT MU_MIMO groups\n"); 2049a07a8f37SSara Sharon } 2050a07a8f37SSara Sharon 2051e705c121SKalle Valo iwl_mvm_recalc_multicast(mvm); 205234672bb3SEliad Peller iwl_mvm_configure_bcast_filter(mvm); 2053e705c121SKalle Valo 2054e705c121SKalle Valo /* reset rssi values */ 2055e705c121SKalle Valo mvmvif->bf_data.ave_beacon_signal = 0; 2056e705c121SKalle Valo 2057e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 2058e705c121SKalle Valo iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2059e705c121SKalle Valo IEEE80211_SMPS_AUTOMATIC); 2060355346baSAvraham Stern if (fw_has_capa(&mvm->fw->ucode_capa, 2061355346baSAvraham Stern IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2062355346baSAvraham Stern iwl_mvm_config_scan(mvm); 2063b45242c9SAvraham Stern } 2064b45242c9SAvraham Stern 2065b45242c9SAvraham Stern if (changes & BSS_CHANGED_BEACON_INFO) { 2066e705c121SKalle Valo /* 2067b45242c9SAvraham Stern * We received a beacon from the associated AP so 2068e705c121SKalle Valo * remove the session protection. 2069e705c121SKalle Valo */ 2070e705c121SKalle Valo iwl_mvm_remove_time_event(mvm, mvmvif, 2071e705c121SKalle Valo &mvmvif->time_event_data); 2072e705c121SKalle Valo 2073e705c121SKalle Valo iwl_mvm_sf_update(mvm, vif, false); 2074e705c121SKalle Valo WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2075e705c121SKalle Valo } 2076e705c121SKalle Valo 2077283115fbSAvri Altman if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2078283115fbSAvri Altman /* 2079283115fbSAvri Altman * Send power command on every beacon change, 2080283115fbSAvri Altman * because we may have not enabled beacon abort yet. 2081283115fbSAvri Altman */ 2082283115fbSAvri Altman BSS_CHANGED_BEACON_INFO)) { 2083e705c121SKalle Valo ret = iwl_mvm_power_update_mac(mvm); 2084e705c121SKalle Valo if (ret) 2085e705c121SKalle Valo IWL_ERR(mvm, "failed to update power mode\n"); 2086e705c121SKalle Valo } 2087e705c121SKalle Valo 2088e705c121SKalle Valo if (changes & BSS_CHANGED_TXPOWER) { 2089e705c121SKalle Valo IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 2090e705c121SKalle Valo bss_conf->txpower); 2091e705c121SKalle Valo iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2092e705c121SKalle Valo } 2093e705c121SKalle Valo 2094e705c121SKalle Valo if (changes & BSS_CHANGED_CQM) { 2095e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2096e705c121SKalle Valo /* reset cqm events tracking */ 2097e705c121SKalle Valo mvmvif->bf_data.last_cqm_event = 0; 2098e705c121SKalle Valo if (mvmvif->bf_data.bf_enabled) { 2099e705c121SKalle Valo ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2100e705c121SKalle Valo if (ret) 2101e705c121SKalle Valo IWL_ERR(mvm, 2102e705c121SKalle Valo "failed to update CQM thresholds\n"); 2103e705c121SKalle Valo } 2104e705c121SKalle Valo } 2105e705c121SKalle Valo 2106e705c121SKalle Valo if (changes & BSS_CHANGED_ARP_FILTER) { 2107e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); 210834672bb3SEliad Peller iwl_mvm_configure_bcast_filter(mvm); 2109e705c121SKalle Valo } 2110e705c121SKalle Valo } 2111e705c121SKalle Valo 2112e705c121SKalle Valo static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2113e705c121SKalle Valo struct ieee80211_vif *vif) 2114e705c121SKalle Valo { 2115e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2116e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2117e705c121SKalle Valo int ret; 2118e705c121SKalle Valo 2119e705c121SKalle Valo /* 2120e705c121SKalle Valo * iwl_mvm_mac_ctxt_add() might read directly from the device 2121e705c121SKalle Valo * (the system time), so make sure it is available. 2122e705c121SKalle Valo */ 2123e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP); 2124e705c121SKalle Valo if (ret) 2125e705c121SKalle Valo return ret; 2126e705c121SKalle Valo 2127e705c121SKalle Valo mutex_lock(&mvm->mutex); 2128e705c121SKalle Valo 2129e705c121SKalle Valo /* Send the beacon template */ 2130e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); 2131e705c121SKalle Valo if (ret) 2132e705c121SKalle Valo goto out_unlock; 2133e705c121SKalle Valo 2134e705c121SKalle Valo /* 2135e705c121SKalle Valo * Re-calculate the tsf id, as the master-slave relations depend on the 2136e705c121SKalle Valo * beacon interval, which was not known when the AP interface was added. 2137e705c121SKalle Valo */ 2138e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP) 2139e705c121SKalle Valo iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2140e705c121SKalle Valo 2141e705c121SKalle Valo mvmvif->ap_assoc_sta_count = 0; 2142e705c121SKalle Valo 2143e705c121SKalle Valo /* Add the mac context */ 2144e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2145e705c121SKalle Valo if (ret) 2146e705c121SKalle Valo goto out_unlock; 2147e705c121SKalle Valo 2148e705c121SKalle Valo /* Perform the binding */ 2149e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 2150e705c121SKalle Valo if (ret) 2151e705c121SKalle Valo goto out_remove; 2152e705c121SKalle Valo 2153ced19f26SSara Sharon ret = iwl_mvm_add_mcast_sta(mvm, vif); 2154ced19f26SSara Sharon if (ret) 2155ced19f26SSara Sharon goto out_unbind; 2156ced19f26SSara Sharon 2157e705c121SKalle Valo /* Send the bcast station. At this stage the TBTT and DTIM time events 2158e705c121SKalle Valo * are added and applied to the scheduler */ 2159e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2160e705c121SKalle Valo if (ret) 2161ced19f26SSara Sharon goto out_rm_mcast; 216226d6c16bSSara Sharon 2163e705c121SKalle Valo /* must be set before quota calculations */ 2164e705c121SKalle Valo mvmvif->ap_ibss_active = true; 2165e705c121SKalle Valo 2166e705c121SKalle Valo /* power updated needs to be done before quotas */ 2167e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 2168e705c121SKalle Valo 2169e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, false, NULL); 2170e705c121SKalle Valo if (ret) 2171e705c121SKalle Valo goto out_quota_failed; 2172e705c121SKalle Valo 2173e705c121SKalle Valo /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2174e705c121SKalle Valo if (vif->p2p && mvm->p2p_device_vif) 2175e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2176e705c121SKalle Valo 2177e705c121SKalle Valo iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS); 2178e705c121SKalle Valo 2179e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 2180e705c121SKalle Valo 2181e705c121SKalle Valo /* we don't support TDLS during DCM */ 2182e705c121SKalle Valo if (iwl_mvm_phy_ctx_count(mvm) > 1) 2183e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 2184e705c121SKalle Valo 2185e705c121SKalle Valo goto out_unlock; 2186e705c121SKalle Valo 2187e705c121SKalle Valo out_quota_failed: 2188e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 2189e705c121SKalle Valo mvmvif->ap_ibss_active = false; 2190e705c121SKalle Valo iwl_mvm_send_rm_bcast_sta(mvm, vif); 2191ced19f26SSara Sharon out_rm_mcast: 2192ced19f26SSara Sharon iwl_mvm_rm_mcast_sta(mvm, vif); 2193e705c121SKalle Valo out_unbind: 2194e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 2195e705c121SKalle Valo out_remove: 2196e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 2197e705c121SKalle Valo out_unlock: 2198e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2199e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP); 2200e705c121SKalle Valo return ret; 2201e705c121SKalle Valo } 2202e705c121SKalle Valo 2203e705c121SKalle Valo static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2204e705c121SKalle Valo struct ieee80211_vif *vif) 2205e705c121SKalle Valo { 2206e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2207e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2208e705c121SKalle Valo 2209e705c121SKalle Valo iwl_mvm_prepare_mac_removal(mvm, vif); 2210e705c121SKalle Valo 2211e705c121SKalle Valo mutex_lock(&mvm->mutex); 2212e705c121SKalle Valo 2213e705c121SKalle Valo /* Handle AP stop while in CSA */ 2214e705c121SKalle Valo if (rcu_access_pointer(mvm->csa_vif) == vif) { 2215e705c121SKalle Valo iwl_mvm_remove_time_event(mvm, mvmvif, 2216e705c121SKalle Valo &mvmvif->time_event_data); 2217e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_vif, NULL); 2218e705c121SKalle Valo mvmvif->csa_countdown = false; 2219e705c121SKalle Valo } 2220e705c121SKalle Valo 2221e705c121SKalle Valo if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2222e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2223e705c121SKalle Valo mvm->csa_tx_block_bcn_timeout = 0; 2224e705c121SKalle Valo } 2225e705c121SKalle Valo 2226e705c121SKalle Valo mvmvif->ap_ibss_active = false; 2227e705c121SKalle Valo mvm->ap_last_beacon_gp2 = 0; 2228e705c121SKalle Valo 2229e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 2230e705c121SKalle Valo 2231e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS); 2232e705c121SKalle Valo 2233e705c121SKalle Valo /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2234e705c121SKalle Valo if (vif->p2p && mvm->p2p_device_vif) 2235e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2236e705c121SKalle Valo 2237e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, NULL); 2238ced19f26SSara Sharon 2239ced19f26SSara Sharon /* 2240ced19f26SSara Sharon * This is not very nice, but the simplest: 2241ced19f26SSara Sharon * For older FWs removing the mcast sta before the bcast station may 2242ced19f26SSara Sharon * cause assert 0x2b00. 2243ced19f26SSara Sharon * This is fixed in later FW (which will stop beaconing when removing 2244ced19f26SSara Sharon * bcast station). 2245ced19f26SSara Sharon * So make the order of removal depend on the TLV 2246ced19f26SSara Sharon */ 2247ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 224826d6c16bSSara Sharon iwl_mvm_rm_mcast_sta(mvm, vif); 2249e705c121SKalle Valo iwl_mvm_send_rm_bcast_sta(mvm, vif); 2250ced19f26SSara Sharon if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2251ced19f26SSara Sharon iwl_mvm_rm_mcast_sta(mvm, vif); 2252e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 2253e705c121SKalle Valo 2254e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 2255e705c121SKalle Valo 2256e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 2257e705c121SKalle Valo 2258e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2259e705c121SKalle Valo } 2260e705c121SKalle Valo 2261e705c121SKalle Valo static void 2262e705c121SKalle Valo iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 2263e705c121SKalle Valo struct ieee80211_vif *vif, 2264e705c121SKalle Valo struct ieee80211_bss_conf *bss_conf, 2265e705c121SKalle Valo u32 changes) 2266e705c121SKalle Valo { 2267e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2268e705c121SKalle Valo 2269e705c121SKalle Valo /* Changes will be applied when the AP/IBSS is started */ 2270e705c121SKalle Valo if (!mvmvif->ap_ibss_active) 2271e705c121SKalle Valo return; 2272e705c121SKalle Valo 2273e705c121SKalle Valo if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 2274e705c121SKalle Valo BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 2275e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 2276e705c121SKalle Valo IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2277e705c121SKalle Valo 2278e705c121SKalle Valo /* Need to send a new beacon template to the FW */ 2279e705c121SKalle Valo if (changes & BSS_CHANGED_BEACON && 2280e705c121SKalle Valo iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) 2281e705c121SKalle Valo IWL_WARN(mvm, "Failed updating beacon data\n"); 2282e705c121SKalle Valo 2283e705c121SKalle Valo if (changes & BSS_CHANGED_TXPOWER) { 2284e705c121SKalle Valo IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 2285e705c121SKalle Valo bss_conf->txpower); 2286e705c121SKalle Valo iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2287e705c121SKalle Valo } 2288e705c121SKalle Valo } 2289e705c121SKalle Valo 2290e705c121SKalle Valo static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 2291e705c121SKalle Valo struct ieee80211_vif *vif, 2292e705c121SKalle Valo struct ieee80211_bss_conf *bss_conf, 2293e705c121SKalle Valo u32 changes) 2294e705c121SKalle Valo { 2295e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2296e705c121SKalle Valo 2297e705c121SKalle Valo /* 2298e705c121SKalle Valo * iwl_mvm_bss_info_changed_station() might call 2299e705c121SKalle Valo * iwl_mvm_protect_session(), which reads directly from 2300e705c121SKalle Valo * the device (the system time), so make sure it is available. 2301e705c121SKalle Valo */ 2302e705c121SKalle Valo if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED)) 2303e705c121SKalle Valo return; 2304e705c121SKalle Valo 2305e705c121SKalle Valo mutex_lock(&mvm->mutex); 2306e705c121SKalle Valo 2307e705c121SKalle Valo if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) 2308e705c121SKalle Valo iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 2309e705c121SKalle Valo 2310e705c121SKalle Valo switch (vif->type) { 2311e705c121SKalle Valo case NL80211_IFTYPE_STATION: 2312e705c121SKalle Valo iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 2313e705c121SKalle Valo break; 2314e705c121SKalle Valo case NL80211_IFTYPE_AP: 2315e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 2316e705c121SKalle Valo iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 2317e705c121SKalle Valo break; 231891b08c2dSAviya Erenfeld case NL80211_IFTYPE_MONITOR: 231991b08c2dSAviya Erenfeld if (changes & BSS_CHANGED_MU_GROUPS) 232091b08c2dSAviya Erenfeld iwl_mvm_update_mu_groups(mvm, vif); 232191b08c2dSAviya Erenfeld break; 2322e705c121SKalle Valo default: 2323e705c121SKalle Valo /* shouldn't happen */ 2324e705c121SKalle Valo WARN_ON_ONCE(1); 2325e705c121SKalle Valo } 2326e705c121SKalle Valo 2327e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2328e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED); 2329e705c121SKalle Valo } 2330e705c121SKalle Valo 2331e705c121SKalle Valo static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, 2332e705c121SKalle Valo struct ieee80211_vif *vif, 2333e705c121SKalle Valo struct ieee80211_scan_request *hw_req) 2334e705c121SKalle Valo { 2335e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2336e705c121SKalle Valo int ret; 2337e705c121SKalle Valo 2338e705c121SKalle Valo if (hw_req->req.n_channels == 0 || 2339e705c121SKalle Valo hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 2340e705c121SKalle Valo return -EINVAL; 2341e705c121SKalle Valo 2342e705c121SKalle Valo mutex_lock(&mvm->mutex); 2343e705c121SKalle Valo ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 2344e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2345e705c121SKalle Valo 2346e705c121SKalle Valo return ret; 2347e705c121SKalle Valo } 2348e705c121SKalle Valo 2349e705c121SKalle Valo static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 2350e705c121SKalle Valo struct ieee80211_vif *vif) 2351e705c121SKalle Valo { 2352e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2353e705c121SKalle Valo 2354e705c121SKalle Valo mutex_lock(&mvm->mutex); 2355e705c121SKalle Valo 2356e705c121SKalle Valo /* Due to a race condition, it's possible that mac80211 asks 2357e705c121SKalle Valo * us to stop a hw_scan when it's already stopped. This can 2358e705c121SKalle Valo * happen, for instance, if we stopped the scan ourselves, 2359e705c121SKalle Valo * called ieee80211_scan_completed() and the userspace called 2360e705c121SKalle Valo * cancel scan scan before ieee80211_scan_work() could run. 2361e705c121SKalle Valo * To handle that, simply return if the scan is not running. 2362e705c121SKalle Valo */ 2363e705c121SKalle Valo if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 2364e705c121SKalle Valo iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 2365e705c121SKalle Valo 2366e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2367e705c121SKalle Valo } 2368e705c121SKalle Valo 2369e705c121SKalle Valo static void 2370e705c121SKalle Valo iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 2371e705c121SKalle Valo struct ieee80211_sta *sta, u16 tids, 2372e705c121SKalle Valo int num_frames, 2373e705c121SKalle Valo enum ieee80211_frame_release_type reason, 2374e705c121SKalle Valo bool more_data) 2375e705c121SKalle Valo { 2376e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2377e705c121SKalle Valo 2378e705c121SKalle Valo /* Called when we need to transmit (a) frame(s) from mac80211 */ 2379e705c121SKalle Valo 2380e705c121SKalle Valo iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2381e705c121SKalle Valo tids, more_data, false); 2382e705c121SKalle Valo } 2383e705c121SKalle Valo 2384e705c121SKalle Valo static void 2385e705c121SKalle Valo iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 2386e705c121SKalle Valo struct ieee80211_sta *sta, u16 tids, 2387e705c121SKalle Valo int num_frames, 2388e705c121SKalle Valo enum ieee80211_frame_release_type reason, 2389e705c121SKalle Valo bool more_data) 2390e705c121SKalle Valo { 2391e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2392e705c121SKalle Valo 23939a3fcf91SSara Sharon /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 2394e705c121SKalle Valo 2395e705c121SKalle Valo iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2396e705c121SKalle Valo tids, more_data, true); 2397e705c121SKalle Valo } 2398e705c121SKalle Valo 239965e25482SJohannes Berg static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2400e705c121SKalle Valo enum sta_notify_cmd cmd, 2401e705c121SKalle Valo struct ieee80211_sta *sta) 2402e705c121SKalle Valo { 2403e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2404e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2405e705c121SKalle Valo unsigned long txqs = 0, tids = 0; 2406e705c121SKalle Valo int tid; 2407e705c121SKalle Valo 2408e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2409e705c121SKalle Valo for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 2410e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2411e705c121SKalle Valo 24129a3fcf91SSara Sharon if (!iwl_mvm_is_dqa_supported(mvm) && 24139a3fcf91SSara Sharon tid_data->state != IWL_AGG_ON && 2414e705c121SKalle Valo tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA) 2415e705c121SKalle Valo continue; 2416e705c121SKalle Valo 24176862fceeSSara Sharon if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 24181c17627bSSara Sharon continue; 24191c17627bSSara Sharon 2420e705c121SKalle Valo __set_bit(tid_data->txq_id, &txqs); 2421e705c121SKalle Valo 2422dd32162dSLiad Kaufman if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 2423e705c121SKalle Valo continue; 2424e705c121SKalle Valo 2425e705c121SKalle Valo __set_bit(tid, &tids); 2426e705c121SKalle Valo } 2427e705c121SKalle Valo 2428e705c121SKalle Valo switch (cmd) { 2429e705c121SKalle Valo case STA_NOTIFY_SLEEP: 2430e705c121SKalle Valo if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) 2431e705c121SKalle Valo ieee80211_sta_block_awake(hw, sta, true); 2432e705c121SKalle Valo 2433e705c121SKalle Valo for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 2434e705c121SKalle Valo ieee80211_sta_set_buffered(sta, tid, true); 2435e705c121SKalle Valo 2436e705c121SKalle Valo if (txqs) 2437e705c121SKalle Valo iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 2438e705c121SKalle Valo /* 2439e705c121SKalle Valo * The fw updates the STA to be asleep. Tx packets on the Tx 2440e705c121SKalle Valo * queues to this station will not be transmitted. The fw will 2441e705c121SKalle Valo * send a Tx response with TX_STATUS_FAIL_DEST_PS. 2442e705c121SKalle Valo */ 2443e705c121SKalle Valo break; 2444e705c121SKalle Valo case STA_NOTIFY_AWAKE: 24450ae98812SSara Sharon if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA)) 2446e705c121SKalle Valo break; 2447e705c121SKalle Valo 2448e705c121SKalle Valo if (txqs) 2449e705c121SKalle Valo iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 2450e705c121SKalle Valo iwl_mvm_sta_modify_ps_wake(mvm, sta); 2451e705c121SKalle Valo break; 2452e705c121SKalle Valo default: 2453e705c121SKalle Valo break; 2454e705c121SKalle Valo } 2455e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2456e705c121SKalle Valo } 2457e705c121SKalle Valo 245865e25482SJohannes Berg static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 245965e25482SJohannes Berg struct ieee80211_vif *vif, 246065e25482SJohannes Berg enum sta_notify_cmd cmd, 246165e25482SJohannes Berg struct ieee80211_sta *sta) 246265e25482SJohannes Berg { 246365e25482SJohannes Berg __iwl_mvm_mac_sta_notify(hw, cmd, sta); 246465e25482SJohannes Berg } 246565e25482SJohannes Berg 246665e25482SJohannes Berg void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 246765e25482SJohannes Berg { 246865e25482SJohannes Berg struct iwl_rx_packet *pkt = rxb_addr(rxb); 246965e25482SJohannes Berg struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 247065e25482SJohannes Berg struct ieee80211_sta *sta; 247165e25482SJohannes Berg struct iwl_mvm_sta *mvmsta; 247265e25482SJohannes Berg bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 247365e25482SJohannes Berg 247465e25482SJohannes Berg if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))) 247565e25482SJohannes Berg return; 247665e25482SJohannes Berg 247765e25482SJohannes Berg rcu_read_lock(); 2478a9560029SSara Sharon sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 247965e25482SJohannes Berg if (WARN_ON(IS_ERR_OR_NULL(sta))) { 248065e25482SJohannes Berg rcu_read_unlock(); 248165e25482SJohannes Berg return; 248265e25482SJohannes Berg } 248365e25482SJohannes Berg 248465e25482SJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 248565e25482SJohannes Berg 248665e25482SJohannes Berg if (!mvmsta->vif || 248765e25482SJohannes Berg mvmsta->vif->type != NL80211_IFTYPE_AP) { 248865e25482SJohannes Berg rcu_read_unlock(); 248965e25482SJohannes Berg return; 249065e25482SJohannes Berg } 249165e25482SJohannes Berg 249265e25482SJohannes Berg if (mvmsta->sleeping != sleeping) { 249365e25482SJohannes Berg mvmsta->sleeping = sleeping; 249465e25482SJohannes Berg __iwl_mvm_mac_sta_notify(mvm->hw, 249565e25482SJohannes Berg sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 249665e25482SJohannes Berg sta); 249765e25482SJohannes Berg ieee80211_sta_ps_transition(sta, sleeping); 249865e25482SJohannes Berg } 249965e25482SJohannes Berg 250065e25482SJohannes Berg if (sleeping) { 250165e25482SJohannes Berg switch (notif->type) { 250265e25482SJohannes Berg case IWL_MVM_PM_EVENT_AWAKE: 250365e25482SJohannes Berg case IWL_MVM_PM_EVENT_ASLEEP: 250465e25482SJohannes Berg break; 250565e25482SJohannes Berg case IWL_MVM_PM_EVENT_UAPSD: 250665e25482SJohannes Berg ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 250765e25482SJohannes Berg break; 250865e25482SJohannes Berg case IWL_MVM_PM_EVENT_PS_POLL: 250965e25482SJohannes Berg ieee80211_sta_pspoll(sta); 251065e25482SJohannes Berg break; 251165e25482SJohannes Berg default: 251265e25482SJohannes Berg break; 251365e25482SJohannes Berg } 251465e25482SJohannes Berg } 251565e25482SJohannes Berg 251665e25482SJohannes Berg rcu_read_unlock(); 251765e25482SJohannes Berg } 251865e25482SJohannes Berg 2519e705c121SKalle Valo static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 2520e705c121SKalle Valo struct ieee80211_vif *vif, 2521e705c121SKalle Valo struct ieee80211_sta *sta) 2522e705c121SKalle Valo { 2523e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2524e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2525e705c121SKalle Valo 2526e705c121SKalle Valo /* 2527e705c121SKalle Valo * This is called before mac80211 does RCU synchronisation, 2528e705c121SKalle Valo * so here we already invalidate our internal RCU-protected 2529e705c121SKalle Valo * station pointer. The rest of the code will thus no longer 2530e705c121SKalle Valo * be able to find the station this way, and we don't rely 2531e705c121SKalle Valo * on further RCU synchronisation after the sta_state() 2532e705c121SKalle Valo * callback deleted the station. 2533e705c121SKalle Valo */ 2534e705c121SKalle Valo mutex_lock(&mvm->mutex); 2535e705c121SKalle Valo if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) 2536e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], 2537e705c121SKalle Valo ERR_PTR(-ENOENT)); 2538e705c121SKalle Valo 2539e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2540e705c121SKalle Valo } 2541e705c121SKalle Valo 2542e705c121SKalle Valo static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2543e705c121SKalle Valo const u8 *bssid) 2544e705c121SKalle Valo { 2545e705c121SKalle Valo if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 2546e705c121SKalle Valo return; 2547e705c121SKalle Valo 2548c5241b0cSAvraham Stern if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 2549cee5a882SAvri Altman vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2550cee5a882SAvri Altman return; 2551cee5a882SAvri Altman } 2552cee5a882SAvri Altman 255311dee0b4SEmmanuel Grumbach if (!vif->p2p && 255411dee0b4SEmmanuel Grumbach (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 2555e705c121SKalle Valo vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2556e705c121SKalle Valo return; 2557e705c121SKalle Valo } 2558e705c121SKalle Valo 2559e705c121SKalle Valo vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 2560e705c121SKalle Valo } 2561e705c121SKalle Valo 25621e8f1329SGolan Ben-Ami static void 25631e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 25641e8f1329SGolan Ben-Ami struct ieee80211_vif *vif, u8 *peer_addr, 25651e8f1329SGolan Ben-Ami enum nl80211_tdls_operation action) 25661e8f1329SGolan Ben-Ami { 25671e8f1329SGolan Ben-Ami struct iwl_fw_dbg_trigger_tlv *trig; 25681e8f1329SGolan Ben-Ami struct iwl_fw_dbg_trigger_tdls *tdls_trig; 25691e8f1329SGolan Ben-Ami 25701e8f1329SGolan Ben-Ami if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS)) 25711e8f1329SGolan Ben-Ami return; 25721e8f1329SGolan Ben-Ami 25731e8f1329SGolan Ben-Ami trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS); 25741e8f1329SGolan Ben-Ami tdls_trig = (void *)trig->data; 25751e8f1329SGolan Ben-Ami if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 25761e8f1329SGolan Ben-Ami return; 25771e8f1329SGolan Ben-Ami 25781e8f1329SGolan Ben-Ami if (!(tdls_trig->action_bitmap & BIT(action))) 25791e8f1329SGolan Ben-Ami return; 25801e8f1329SGolan Ben-Ami 25811e8f1329SGolan Ben-Ami if (tdls_trig->peer_mode && 25821e8f1329SGolan Ben-Ami memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 25831e8f1329SGolan Ben-Ami return; 25841e8f1329SGolan Ben-Ami 25851e8f1329SGolan Ben-Ami iwl_mvm_fw_dbg_collect_trig(mvm, trig, 25861e8f1329SGolan Ben-Ami "TDLS event occurred, peer %pM, action %d", 25871e8f1329SGolan Ben-Ami peer_addr, action); 25881e8f1329SGolan Ben-Ami } 25891e8f1329SGolan Ben-Ami 259024afba76SLiad Kaufman static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm *mvm, 259124afba76SLiad Kaufman struct iwl_mvm_sta *mvm_sta) 259224afba76SLiad Kaufman { 259324afba76SLiad Kaufman struct iwl_mvm_tid_data *tid_data; 259424afba76SLiad Kaufman struct sk_buff *skb; 259524afba76SLiad Kaufman int i; 259624afba76SLiad Kaufman 259724afba76SLiad Kaufman spin_lock_bh(&mvm_sta->lock); 259824afba76SLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { 259924afba76SLiad Kaufman tid_data = &mvm_sta->tid_data[i]; 26007e39a00dSAvraham Stern 26017e39a00dSAvraham Stern while ((skb = __skb_dequeue(&tid_data->deferred_tx_frames))) { 26027e39a00dSAvraham Stern struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 26037e39a00dSAvraham Stern 26047e39a00dSAvraham Stern /* 26057e39a00dSAvraham Stern * The first deferred frame should've stopped the MAC 26067e39a00dSAvraham Stern * queues, so we should never get a second deferred 26077e39a00dSAvraham Stern * frame for the RA/TID. 26087e39a00dSAvraham Stern */ 26097e39a00dSAvraham Stern iwl_mvm_start_mac_queues(mvm, info->hw_queue); 261024afba76SLiad Kaufman ieee80211_free_txskb(mvm->hw, skb); 261124afba76SLiad Kaufman } 26127e39a00dSAvraham Stern } 261324afba76SLiad Kaufman spin_unlock_bh(&mvm_sta->lock); 261424afba76SLiad Kaufman } 261524afba76SLiad Kaufman 2616e705c121SKalle Valo static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 2617e705c121SKalle Valo struct ieee80211_vif *vif, 2618e705c121SKalle Valo struct ieee80211_sta *sta, 2619e705c121SKalle Valo enum ieee80211_sta_state old_state, 2620e705c121SKalle Valo enum ieee80211_sta_state new_state) 2621e705c121SKalle Valo { 2622e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2623e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 26246ea29ce5SJohannes Berg struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2625e705c121SKalle Valo int ret; 2626e705c121SKalle Valo 2627e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 2628e705c121SKalle Valo sta->addr, old_state, new_state); 2629e705c121SKalle Valo 2630e705c121SKalle Valo /* this would be a mac80211 bug ... but don't crash */ 2631e705c121SKalle Valo if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) 2632e705c121SKalle Valo return -EINVAL; 2633e705c121SKalle Valo 2634e705c121SKalle Valo /* if a STA is being removed, reuse its ID */ 2635e705c121SKalle Valo flush_work(&mvm->sta_drained_wk); 2636e705c121SKalle Valo 263724afba76SLiad Kaufman /* 263824afba76SLiad Kaufman * If we are in a STA removal flow and in DQA mode: 263924afba76SLiad Kaufman * 264024afba76SLiad Kaufman * This is after the sync_rcu part, so the queues have already been 264124afba76SLiad Kaufman * flushed. No more TXs on their way in mac80211's path, and no more in 264224afba76SLiad Kaufman * the queues. 264324afba76SLiad Kaufman * Also, we won't be getting any new TX frames for this station. 264424afba76SLiad Kaufman * What we might have are deferred TX frames that need to be taken care 264524afba76SLiad Kaufman * of. 264624afba76SLiad Kaufman * 264724afba76SLiad Kaufman * Drop any still-queued deferred-frame before removing the STA, and 264824afba76SLiad Kaufman * make sure the worker is no longer handling frames for this STA. 264924afba76SLiad Kaufman */ 265024afba76SLiad Kaufman if (old_state == IEEE80211_STA_NONE && 265124afba76SLiad Kaufman new_state == IEEE80211_STA_NOTEXIST && 265224afba76SLiad Kaufman iwl_mvm_is_dqa_supported(mvm)) { 265324afba76SLiad Kaufman iwl_mvm_purge_deferred_tx_frames(mvm, mvm_sta); 265424afba76SLiad Kaufman flush_work(&mvm->add_stream_wk); 265524afba76SLiad Kaufman 265624afba76SLiad Kaufman /* 265724afba76SLiad Kaufman * No need to make sure deferred TX indication is off since the 265824afba76SLiad Kaufman * worker will already remove it if it was on 265924afba76SLiad Kaufman */ 266024afba76SLiad Kaufman } 266124afba76SLiad Kaufman 2662e705c121SKalle Valo mutex_lock(&mvm->mutex); 26636ea29ce5SJohannes Berg /* track whether or not the station is associated */ 26646ea29ce5SJohannes Berg mvm_sta->associated = new_state >= IEEE80211_STA_ASSOC; 26656ea29ce5SJohannes Berg 2666e705c121SKalle Valo if (old_state == IEEE80211_STA_NOTEXIST && 2667e705c121SKalle Valo new_state == IEEE80211_STA_NONE) { 2668e705c121SKalle Valo /* 2669e705c121SKalle Valo * Firmware bug - it'll crash if the beacon interval is less 2670e705c121SKalle Valo * than 16. We can't avoid connecting at all, so refuse the 2671e705c121SKalle Valo * station state change, this will cause mac80211 to abandon 2672e705c121SKalle Valo * attempts to connect to this AP, and eventually wpa_s will 2673e705c121SKalle Valo * blacklist the AP... 2674e705c121SKalle Valo */ 2675e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 2676e705c121SKalle Valo vif->bss_conf.beacon_int < 16) { 2677e705c121SKalle Valo IWL_ERR(mvm, 2678e705c121SKalle Valo "AP %pM beacon interval is %d, refusing due to firmware bug!\n", 2679e705c121SKalle Valo sta->addr, vif->bss_conf.beacon_int); 2680e705c121SKalle Valo ret = -EINVAL; 2681e705c121SKalle Valo goto out_unlock; 2682e705c121SKalle Valo } 2683e705c121SKalle Valo 2684e705c121SKalle Valo if (sta->tdls && 2685e705c121SKalle Valo (vif->p2p || 2686e705c121SKalle Valo iwl_mvm_tdls_sta_count(mvm, NULL) == 2687e705c121SKalle Valo IWL_MVM_TDLS_STA_COUNT || 2688e705c121SKalle Valo iwl_mvm_phy_ctx_count(mvm) > 1)) { 2689e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 2690e705c121SKalle Valo ret = -EBUSY; 2691e705c121SKalle Valo goto out_unlock; 2692e705c121SKalle Valo } 2693e705c121SKalle Valo 2694e705c121SKalle Valo ret = iwl_mvm_add_sta(mvm, vif, sta); 26951e8f1329SGolan Ben-Ami if (sta->tdls && ret == 0) { 2696e705c121SKalle Valo iwl_mvm_recalc_tdls_state(mvm, vif, true); 26971e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 26981e8f1329SGolan Ben-Ami NL80211_TDLS_SETUP); 26991e8f1329SGolan Ben-Ami } 2700e705c121SKalle Valo } else if (old_state == IEEE80211_STA_NONE && 2701e705c121SKalle Valo new_state == IEEE80211_STA_AUTH) { 2702e705c121SKalle Valo /* 2703e705c121SKalle Valo * EBS may be disabled due to previous failures reported by FW. 2704e705c121SKalle Valo * Reset EBS status here assuming environment has been changed. 2705e705c121SKalle Valo */ 2706e705c121SKalle Valo mvm->last_ebs_successful = true; 2707e705c121SKalle Valo iwl_mvm_check_uapsd(mvm, vif, sta->addr); 2708e705c121SKalle Valo ret = 0; 2709e705c121SKalle Valo } else if (old_state == IEEE80211_STA_AUTH && 2710e705c121SKalle Valo new_state == IEEE80211_STA_ASSOC) { 27118be30c13SAyala Beker if (vif->type == NL80211_IFTYPE_AP) { 27128be30c13SAyala Beker mvmvif->ap_assoc_sta_count++; 27138be30c13SAyala Beker iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 27148be30c13SAyala Beker } 2715735a0045SGoodstein, Mordechay 2716735a0045SGoodstein, Mordechay iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 2717e705c121SKalle Valo true); 2718735a0045SGoodstein, Mordechay ret = iwl_mvm_update_sta(mvm, vif, sta); 2719e705c121SKalle Valo } else if (old_state == IEEE80211_STA_ASSOC && 2720e705c121SKalle Valo new_state == IEEE80211_STA_AUTHORIZED) { 2721e705c121SKalle Valo 2722e705c121SKalle Valo /* we don't support TDLS during DCM */ 2723e705c121SKalle Valo if (iwl_mvm_phy_ctx_count(mvm) > 1) 2724e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 2725e705c121SKalle Valo 27261e8f1329SGolan Ben-Ami if (sta->tdls) 27271e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 27281e8f1329SGolan Ben-Ami NL80211_TDLS_ENABLE_LINK); 27291e8f1329SGolan Ben-Ami 2730e705c121SKalle Valo /* enable beacon filtering */ 2731e705c121SKalle Valo WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2732e705c121SKalle Valo ret = 0; 2733e705c121SKalle Valo } else if (old_state == IEEE80211_STA_AUTHORIZED && 2734e705c121SKalle Valo new_state == IEEE80211_STA_ASSOC) { 2735e705c121SKalle Valo /* disable beacon filtering */ 2736e705c121SKalle Valo WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0)); 2737e705c121SKalle Valo ret = 0; 2738e705c121SKalle Valo } else if (old_state == IEEE80211_STA_ASSOC && 2739e705c121SKalle Valo new_state == IEEE80211_STA_AUTH) { 27408be30c13SAyala Beker if (vif->type == NL80211_IFTYPE_AP) { 27418be30c13SAyala Beker mvmvif->ap_assoc_sta_count--; 27428be30c13SAyala Beker iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 27438be30c13SAyala Beker } 2744e705c121SKalle Valo ret = 0; 2745e705c121SKalle Valo } else if (old_state == IEEE80211_STA_AUTH && 2746e705c121SKalle Valo new_state == IEEE80211_STA_NONE) { 2747e705c121SKalle Valo ret = 0; 2748e705c121SKalle Valo } else if (old_state == IEEE80211_STA_NONE && 2749e705c121SKalle Valo new_state == IEEE80211_STA_NOTEXIST) { 2750e705c121SKalle Valo ret = iwl_mvm_rm_sta(mvm, vif, sta); 27511e8f1329SGolan Ben-Ami if (sta->tdls) { 2752e705c121SKalle Valo iwl_mvm_recalc_tdls_state(mvm, vif, false); 27531e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 27541e8f1329SGolan Ben-Ami NL80211_TDLS_DISABLE_LINK); 27551e8f1329SGolan Ben-Ami } 2756e705c121SKalle Valo } else { 2757e705c121SKalle Valo ret = -EIO; 2758e705c121SKalle Valo } 2759e705c121SKalle Valo out_unlock: 2760e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2761e705c121SKalle Valo 2762e705c121SKalle Valo if (sta->tdls && ret == 0) { 2763e705c121SKalle Valo if (old_state == IEEE80211_STA_NOTEXIST && 2764e705c121SKalle Valo new_state == IEEE80211_STA_NONE) 2765e705c121SKalle Valo ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 2766e705c121SKalle Valo else if (old_state == IEEE80211_STA_NONE && 2767e705c121SKalle Valo new_state == IEEE80211_STA_NOTEXIST) 2768e705c121SKalle Valo ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 2769e705c121SKalle Valo } 2770e705c121SKalle Valo 2771e705c121SKalle Valo return ret; 2772e705c121SKalle Valo } 2773e705c121SKalle Valo 2774e705c121SKalle Valo static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 2775e705c121SKalle Valo { 2776e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2777e705c121SKalle Valo 2778e705c121SKalle Valo mvm->rts_threshold = value; 2779e705c121SKalle Valo 2780e705c121SKalle Valo return 0; 2781e705c121SKalle Valo } 2782e705c121SKalle Valo 2783e705c121SKalle Valo static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, 2784e705c121SKalle Valo struct ieee80211_vif *vif, 2785e705c121SKalle Valo struct ieee80211_sta *sta, u32 changed) 2786e705c121SKalle Valo { 2787e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2788e705c121SKalle Valo 2789e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 2790e705c121SKalle Valo changed & IEEE80211_RC_NSS_CHANGED) 2791e705c121SKalle Valo iwl_mvm_sf_update(mvm, vif, false); 2792e705c121SKalle Valo } 2793e705c121SKalle Valo 2794e705c121SKalle Valo static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 2795e705c121SKalle Valo struct ieee80211_vif *vif, u16 ac, 2796e705c121SKalle Valo const struct ieee80211_tx_queue_params *params) 2797e705c121SKalle Valo { 2798e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2799e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2800e705c121SKalle Valo 2801e705c121SKalle Valo mvmvif->queue_params[ac] = *params; 2802e705c121SKalle Valo 2803e705c121SKalle Valo /* 2804e705c121SKalle Valo * No need to update right away, we'll get BSS_CHANGED_QOS 2805e705c121SKalle Valo * The exception is P2P_DEVICE interface which needs immediate update. 2806e705c121SKalle Valo */ 2807e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 2808e705c121SKalle Valo int ret; 2809e705c121SKalle Valo 2810e705c121SKalle Valo mutex_lock(&mvm->mutex); 2811e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2812e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2813e705c121SKalle Valo return ret; 2814e705c121SKalle Valo } 2815e705c121SKalle Valo return 0; 2816e705c121SKalle Valo } 2817e705c121SKalle Valo 2818e705c121SKalle Valo static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 2819e705c121SKalle Valo struct ieee80211_vif *vif) 2820e705c121SKalle Valo { 2821e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 28227c70fee5SSara Sharon u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 28237c70fee5SSara Sharon u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2824e705c121SKalle Valo 2825e705c121SKalle Valo if (WARN_ON_ONCE(vif->bss_conf.assoc)) 2826e705c121SKalle Valo return; 2827e705c121SKalle Valo 2828e705c121SKalle Valo /* 2829e705c121SKalle Valo * iwl_mvm_protect_session() reads directly from the device 2830e705c121SKalle Valo * (the system time), so make sure it is available. 2831e705c121SKalle Valo */ 2832e705c121SKalle Valo if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX)) 2833e705c121SKalle Valo return; 2834e705c121SKalle Valo 2835e705c121SKalle Valo mutex_lock(&mvm->mutex); 2836e705c121SKalle Valo /* Try really hard to protect the session and hear a beacon */ 2837e705c121SKalle Valo iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false); 2838e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2839e705c121SKalle Valo 2840e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX); 2841e705c121SKalle Valo } 2842e705c121SKalle Valo 2843e705c121SKalle Valo static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 2844e705c121SKalle Valo struct ieee80211_vif *vif, 2845e705c121SKalle Valo struct cfg80211_sched_scan_request *req, 2846e705c121SKalle Valo struct ieee80211_scan_ies *ies) 2847e705c121SKalle Valo { 2848e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2849e705c121SKalle Valo 2850e705c121SKalle Valo int ret; 2851e705c121SKalle Valo 2852e705c121SKalle Valo mutex_lock(&mvm->mutex); 2853e705c121SKalle Valo 2854e705c121SKalle Valo if (!vif->bss_conf.idle) { 2855e705c121SKalle Valo ret = -EBUSY; 2856e705c121SKalle Valo goto out; 2857e705c121SKalle Valo } 2858e705c121SKalle Valo 2859e705c121SKalle Valo ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 2860e705c121SKalle Valo 2861e705c121SKalle Valo out: 2862e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2863e705c121SKalle Valo return ret; 2864e705c121SKalle Valo } 2865e705c121SKalle Valo 2866e705c121SKalle Valo static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 2867e705c121SKalle Valo struct ieee80211_vif *vif) 2868e705c121SKalle Valo { 2869e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2870e705c121SKalle Valo int ret; 2871e705c121SKalle Valo 2872e705c121SKalle Valo mutex_lock(&mvm->mutex); 2873e705c121SKalle Valo 2874e705c121SKalle Valo /* Due to a race condition, it's possible that mac80211 asks 2875e705c121SKalle Valo * us to stop a sched_scan when it's already stopped. This 2876e705c121SKalle Valo * can happen, for instance, if we stopped the scan ourselves, 2877e705c121SKalle Valo * called ieee80211_sched_scan_stopped() and the userspace called 2878e705c121SKalle Valo * stop sched scan scan before ieee80211_sched_scan_stopped_work() 2879e705c121SKalle Valo * could run. To handle this, simply return if the scan is 2880e705c121SKalle Valo * not running. 2881e705c121SKalle Valo */ 2882e705c121SKalle Valo if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 2883e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2884e705c121SKalle Valo return 0; 2885e705c121SKalle Valo } 2886e705c121SKalle Valo 2887e705c121SKalle Valo ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 2888e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2889e705c121SKalle Valo iwl_mvm_wait_for_async_handlers(mvm); 2890e705c121SKalle Valo 2891e705c121SKalle Valo return ret; 2892e705c121SKalle Valo } 2893e705c121SKalle Valo 2894e705c121SKalle Valo static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 2895e705c121SKalle Valo enum set_key_cmd cmd, 2896e705c121SKalle Valo struct ieee80211_vif *vif, 2897e705c121SKalle Valo struct ieee80211_sta *sta, 2898e705c121SKalle Valo struct ieee80211_key_conf *key) 2899e705c121SKalle Valo { 2900e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2901f5e28eacSJohannes Berg struct iwl_mvm_sta *mvmsta; 2902f5e28eacSJohannes Berg struct iwl_mvm_key_pn *ptk_pn; 2903f5e28eacSJohannes Berg int keyidx = key->keyidx; 2904e705c121SKalle Valo int ret; 29054615fd15SEmmanuel Grumbach u8 key_offset; 2906e705c121SKalle Valo 29073b37f4c9SJohannes Berg if (iwlwifi_mod_params.swcrypto) { 2908e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); 2909e705c121SKalle Valo return -EOPNOTSUPP; 2910e705c121SKalle Valo } 2911e705c121SKalle Valo 2912e705c121SKalle Valo switch (key->cipher) { 2913e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 2914e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 29151ad4f639SEliad Peller key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 2916e705c121SKalle Valo break; 2917e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 29182a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP: 29192a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256: 292085aeb58cSDavid Spinadel if (!iwl_mvm_has_new_tx_api(mvm)) 2921e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 2922e705c121SKalle Valo break; 2923e705c121SKalle Valo case WLAN_CIPHER_SUITE_AES_CMAC: 29248e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_128: 29258e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_256: 2926e705c121SKalle Valo WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 2927e705c121SKalle Valo break; 2928e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 2929e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 2930e705c121SKalle Valo /* For non-client mode, only use WEP keys for TX as we probably 2931e705c121SKalle Valo * don't have a station yet anyway and would then have to keep 2932e705c121SKalle Valo * track of the keys, linking them to each of the clients/peers 2933e705c121SKalle Valo * as they appear. For now, don't do that, for performance WEP 2934e705c121SKalle Valo * offload doesn't really matter much, but we need it for some 2935e705c121SKalle Valo * other offload features in client mode. 2936e705c121SKalle Valo */ 2937e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION) 2938e705c121SKalle Valo return 0; 2939e705c121SKalle Valo break; 2940e705c121SKalle Valo default: 2941e705c121SKalle Valo /* currently FW supports only one optional cipher scheme */ 2942e705c121SKalle Valo if (hw->n_cipher_schemes && 2943e705c121SKalle Valo hw->cipher_schemes->cipher == key->cipher) 2944e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 2945e705c121SKalle Valo else 2946e705c121SKalle Valo return -EOPNOTSUPP; 2947e705c121SKalle Valo } 2948e705c121SKalle Valo 2949e705c121SKalle Valo mutex_lock(&mvm->mutex); 2950e705c121SKalle Valo 2951e705c121SKalle Valo switch (cmd) { 2952e705c121SKalle Valo case SET_KEY: 2953e705c121SKalle Valo if ((vif->type == NL80211_IFTYPE_ADHOC || 2954e705c121SKalle Valo vif->type == NL80211_IFTYPE_AP) && !sta) { 2955e705c121SKalle Valo /* 2956e705c121SKalle Valo * GTK on AP interface is a TX-only key, return 0; 2957e705c121SKalle Valo * on IBSS they're per-station and because we're lazy 2958e705c121SKalle Valo * we don't support them for RX, so do the same. 29598e160ab8SAyala Beker * CMAC/GMAC in AP/IBSS modes must be done in software. 2960e705c121SKalle Valo */ 29618e160ab8SAyala Beker if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 29628e160ab8SAyala Beker key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 29638e160ab8SAyala Beker key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 296481279c49SJohannes Berg ret = -EOPNOTSUPP; 296581279c49SJohannes Berg else 2966e705c121SKalle Valo ret = 0; 296785aeb58cSDavid Spinadel 296885aeb58cSDavid Spinadel if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 296985aeb58cSDavid Spinadel key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 297085aeb58cSDavid Spinadel !iwl_mvm_has_new_tx_api(mvm)) { 2971e705c121SKalle Valo key->hw_key_idx = STA_KEY_IDX_INVALID; 2972e705c121SKalle Valo break; 2973e705c121SKalle Valo } 297485aeb58cSDavid Spinadel } 2975e705c121SKalle Valo 2976e705c121SKalle Valo /* During FW restart, in order to restore the state as it was, 2977e705c121SKalle Valo * don't try to reprogram keys we previously failed for. 2978e705c121SKalle Valo */ 2979e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2980e705c121SKalle Valo key->hw_key_idx == STA_KEY_IDX_INVALID) { 2981e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, 2982e705c121SKalle Valo "skip invalid idx key programming during restart\n"); 2983e705c121SKalle Valo ret = 0; 2984e705c121SKalle Valo break; 2985e705c121SKalle Valo } 2986e705c121SKalle Valo 2987f5e28eacSJohannes Berg if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2988f5e28eacSJohannes Berg sta && iwl_mvm_has_new_rx_api(mvm) && 2989f5e28eacSJohannes Berg key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 2990f5e28eacSJohannes Berg (key->cipher == WLAN_CIPHER_SUITE_CCMP || 29912a53d166SAyala Beker key->cipher == WLAN_CIPHER_SUITE_GCMP || 29922a53d166SAyala Beker key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 2993f5e28eacSJohannes Berg struct ieee80211_key_seq seq; 2994f5e28eacSJohannes Berg int tid, q; 2995f5e28eacSJohannes Berg 2996f5e28eacSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 2997f5e28eacSJohannes Berg WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 2998f5e28eacSJohannes Berg ptk_pn = kzalloc(sizeof(*ptk_pn) + 2999f5e28eacSJohannes Berg mvm->trans->num_rx_queues * 3000f5e28eacSJohannes Berg sizeof(ptk_pn->q[0]), 3001f5e28eacSJohannes Berg GFP_KERNEL); 3002f5e28eacSJohannes Berg if (!ptk_pn) { 3003f5e28eacSJohannes Berg ret = -ENOMEM; 3004f5e28eacSJohannes Berg break; 3005f5e28eacSJohannes Berg } 3006f5e28eacSJohannes Berg 3007f5e28eacSJohannes Berg for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 3008f5e28eacSJohannes Berg ieee80211_get_key_rx_seq(key, tid, &seq); 3009f5e28eacSJohannes Berg for (q = 0; q < mvm->trans->num_rx_queues; q++) 3010f5e28eacSJohannes Berg memcpy(ptk_pn->q[q].pn[tid], 3011f5e28eacSJohannes Berg seq.ccmp.pn, 3012f5e28eacSJohannes Berg IEEE80211_CCMP_PN_LEN); 3013f5e28eacSJohannes Berg } 3014f5e28eacSJohannes Berg 3015f5e28eacSJohannes Berg rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 3016f5e28eacSJohannes Berg } 3017f5e28eacSJohannes Berg 30184615fd15SEmmanuel Grumbach /* in HW restart reuse the index, otherwise request a new one */ 30194615fd15SEmmanuel Grumbach if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 30204615fd15SEmmanuel Grumbach key_offset = key->hw_key_idx; 30214615fd15SEmmanuel Grumbach else 30224615fd15SEmmanuel Grumbach key_offset = STA_KEY_IDX_INVALID; 30234615fd15SEmmanuel Grumbach 3024e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); 30254615fd15SEmmanuel Grumbach ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 3026e705c121SKalle Valo if (ret) { 3027e705c121SKalle Valo IWL_WARN(mvm, "set key failed\n"); 3028e705c121SKalle Valo /* 3029e705c121SKalle Valo * can't add key for RX, but we don't need it 3030e705c121SKalle Valo * in the device for TX so still return 0 3031e705c121SKalle Valo */ 3032e705c121SKalle Valo key->hw_key_idx = STA_KEY_IDX_INVALID; 3033e705c121SKalle Valo ret = 0; 3034e705c121SKalle Valo } 3035e705c121SKalle Valo 3036e705c121SKalle Valo break; 3037e705c121SKalle Valo case DISABLE_KEY: 3038e705c121SKalle Valo if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 3039e705c121SKalle Valo ret = 0; 3040e705c121SKalle Valo break; 3041e705c121SKalle Valo } 3042e705c121SKalle Valo 3043f5e28eacSJohannes Berg if (sta && iwl_mvm_has_new_rx_api(mvm) && 3044f5e28eacSJohannes Berg key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3045f5e28eacSJohannes Berg (key->cipher == WLAN_CIPHER_SUITE_CCMP || 30462a53d166SAyala Beker key->cipher == WLAN_CIPHER_SUITE_GCMP || 30472a53d166SAyala Beker key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3048f5e28eacSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 3049f5e28eacSJohannes Berg ptk_pn = rcu_dereference_protected( 3050f5e28eacSJohannes Berg mvmsta->ptk_pn[keyidx], 3051f5e28eacSJohannes Berg lockdep_is_held(&mvm->mutex)); 3052f5e28eacSJohannes Berg RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 3053f5e28eacSJohannes Berg if (ptk_pn) 3054f5e28eacSJohannes Berg kfree_rcu(ptk_pn, rcu_head); 3055f5e28eacSJohannes Berg } 3056f5e28eacSJohannes Berg 3057e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 3058e705c121SKalle Valo ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 3059e705c121SKalle Valo break; 3060e705c121SKalle Valo default: 3061e705c121SKalle Valo ret = -EINVAL; 3062e705c121SKalle Valo } 3063e705c121SKalle Valo 3064e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3065e705c121SKalle Valo return ret; 3066e705c121SKalle Valo } 3067e705c121SKalle Valo 3068e705c121SKalle Valo static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 3069e705c121SKalle Valo struct ieee80211_vif *vif, 3070e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 3071e705c121SKalle Valo struct ieee80211_sta *sta, 3072e705c121SKalle Valo u32 iv32, u16 *phase1key) 3073e705c121SKalle Valo { 3074e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3075e705c121SKalle Valo 3076e705c121SKalle Valo if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 3077e705c121SKalle Valo return; 3078e705c121SKalle Valo 3079e705c121SKalle Valo iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 3080e705c121SKalle Valo } 3081e705c121SKalle Valo 3082e705c121SKalle Valo 3083e705c121SKalle Valo static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 3084e705c121SKalle Valo struct iwl_rx_packet *pkt, void *data) 3085e705c121SKalle Valo { 3086e705c121SKalle Valo struct iwl_mvm *mvm = 3087e705c121SKalle Valo container_of(notif_wait, struct iwl_mvm, notif_wait); 3088e705c121SKalle Valo struct iwl_hs20_roc_res *resp; 3089e705c121SKalle Valo int resp_len = iwl_rx_packet_payload_len(pkt); 3090e705c121SKalle Valo struct iwl_mvm_time_event_data *te_data = data; 3091e705c121SKalle Valo 3092e705c121SKalle Valo if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 3093e705c121SKalle Valo return true; 3094e705c121SKalle Valo 3095e705c121SKalle Valo if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 3096e705c121SKalle Valo IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 3097e705c121SKalle Valo return true; 3098e705c121SKalle Valo } 3099e705c121SKalle Valo 3100e705c121SKalle Valo resp = (void *)pkt->data; 3101e705c121SKalle Valo 3102e705c121SKalle Valo IWL_DEBUG_TE(mvm, 3103e705c121SKalle Valo "Aux ROC: Recieved response from ucode: status=%d uid=%d\n", 3104e705c121SKalle Valo resp->status, resp->event_unique_id); 3105e705c121SKalle Valo 3106e705c121SKalle Valo te_data->uid = le32_to_cpu(resp->event_unique_id); 3107e705c121SKalle Valo IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 3108e705c121SKalle Valo te_data->uid); 3109e705c121SKalle Valo 3110e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 3111e705c121SKalle Valo list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 3112e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 3113e705c121SKalle Valo 3114e705c121SKalle Valo return true; 3115e705c121SKalle Valo } 3116e705c121SKalle Valo 3117dc28e12fSMatti Gottlieb #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 3118dc28e12fSMatti Gottlieb #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 3119dc28e12fSMatti Gottlieb #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 3120dc28e12fSMatti Gottlieb #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 3121dc28e12fSMatti Gottlieb #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 3122e705c121SKalle Valo static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 3123e705c121SKalle Valo struct ieee80211_channel *channel, 3124e705c121SKalle Valo struct ieee80211_vif *vif, 3125e705c121SKalle Valo int duration) 3126e705c121SKalle Valo { 3127e705c121SKalle Valo int res, time_reg = DEVICE_SYSTEM_TIME_REG; 3128e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3129e705c121SKalle Valo struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 3130e705c121SKalle Valo static const u16 time_event_response[] = { HOT_SPOT_CMD }; 3131e705c121SKalle Valo struct iwl_notification_wait wait_time_event; 3132dc28e12fSMatti Gottlieb u32 dtim_interval = vif->bss_conf.dtim_period * 3133dc28e12fSMatti Gottlieb vif->bss_conf.beacon_int; 3134dc28e12fSMatti Gottlieb u32 req_dur, delay; 3135e705c121SKalle Valo struct iwl_hs20_roc_req aux_roc_req = { 3136e705c121SKalle Valo .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 3137e705c121SKalle Valo .id_and_color = 3138e705c121SKalle Valo cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 3139e705c121SKalle Valo .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 3140e705c121SKalle Valo /* Set the channel info data */ 314157fbcce3SJohannes Berg .channel_info.band = (channel->band == NL80211_BAND_2GHZ) ? 3142e705c121SKalle Valo PHY_BAND_24 : PHY_BAND_5, 3143e705c121SKalle Valo .channel_info.channel = channel->hw_value, 3144e705c121SKalle Valo .channel_info.width = PHY_VHT_CHANNEL_MODE20, 3145e705c121SKalle Valo /* Set the time and duration */ 3146e705c121SKalle Valo .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)), 3147e705c121SKalle Valo }; 3148e705c121SKalle Valo 3149dc28e12fSMatti Gottlieb delay = AUX_ROC_MIN_DELAY; 3150dc28e12fSMatti Gottlieb req_dur = MSEC_TO_TU(duration); 3151dc28e12fSMatti Gottlieb 3152dc28e12fSMatti Gottlieb /* 3153dc28e12fSMatti Gottlieb * If we are associated we want the delay time to be at least one 3154dc28e12fSMatti Gottlieb * dtim interval so that the FW can wait until after the DTIM and 3155dc28e12fSMatti Gottlieb * then start the time event, this will potentially allow us to 3156dc28e12fSMatti Gottlieb * remain off-channel for the max duration. 3157dc28e12fSMatti Gottlieb * Since we want to use almost a whole dtim interval we would also 3158dc28e12fSMatti Gottlieb * like the delay to be for 2-3 dtim intervals, in case there are 3159dc28e12fSMatti Gottlieb * other time events with higher priority. 3160dc28e12fSMatti Gottlieb */ 3161dc28e12fSMatti Gottlieb if (vif->bss_conf.assoc) { 3162dc28e12fSMatti Gottlieb delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 3163dc28e12fSMatti Gottlieb /* We cannot remain off-channel longer than the DTIM interval */ 3164dc28e12fSMatti Gottlieb if (dtim_interval <= req_dur) { 3165dc28e12fSMatti Gottlieb req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 3166dc28e12fSMatti Gottlieb if (req_dur <= AUX_ROC_MIN_DURATION) 3167dc28e12fSMatti Gottlieb req_dur = dtim_interval - 3168dc28e12fSMatti Gottlieb AUX_ROC_MIN_SAFETY_BUFFER; 3169dc28e12fSMatti Gottlieb } 3170dc28e12fSMatti Gottlieb } 3171dc28e12fSMatti Gottlieb 3172dc28e12fSMatti Gottlieb aux_roc_req.duration = cpu_to_le32(req_dur); 3173dc28e12fSMatti Gottlieb aux_roc_req.apply_time_max_delay = cpu_to_le32(delay); 3174dc28e12fSMatti Gottlieb 3175dc28e12fSMatti Gottlieb IWL_DEBUG_TE(mvm, 3176dc28e12fSMatti Gottlieb "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 3177dc28e12fSMatti Gottlieb channel->hw_value, req_dur, duration, delay, 3178dc28e12fSMatti Gottlieb dtim_interval); 3179e705c121SKalle Valo /* Set the node address */ 3180e705c121SKalle Valo memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN); 3181e705c121SKalle Valo 3182e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3183e705c121SKalle Valo 3184e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 3185e705c121SKalle Valo 3186e705c121SKalle Valo if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 3187e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 3188e705c121SKalle Valo return -EIO; 3189e705c121SKalle Valo } 3190e705c121SKalle Valo 3191e705c121SKalle Valo te_data->vif = vif; 3192e705c121SKalle Valo te_data->duration = duration; 3193e705c121SKalle Valo te_data->id = HOT_SPOT_CMD; 3194e705c121SKalle Valo 3195e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 3196e705c121SKalle Valo 3197e705c121SKalle Valo /* 3198e705c121SKalle Valo * Use a notification wait, which really just processes the 3199e705c121SKalle Valo * command response and doesn't wait for anything, in order 3200e705c121SKalle Valo * to be able to process the response and get the UID inside 3201e705c121SKalle Valo * the RX path. Using CMD_WANT_SKB doesn't work because it 3202e705c121SKalle Valo * stores the buffer and then wakes up this thread, by which 3203e705c121SKalle Valo * time another notification (that the time event started) 3204e705c121SKalle Valo * might already be processed unsuccessfully. 3205e705c121SKalle Valo */ 3206e705c121SKalle Valo iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 3207e705c121SKalle Valo time_event_response, 3208e705c121SKalle Valo ARRAY_SIZE(time_event_response), 3209e705c121SKalle Valo iwl_mvm_rx_aux_roc, te_data); 3210e705c121SKalle Valo 3211e705c121SKalle Valo res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req), 3212e705c121SKalle Valo &aux_roc_req); 3213e705c121SKalle Valo 3214e705c121SKalle Valo if (res) { 3215e705c121SKalle Valo IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 3216e705c121SKalle Valo iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 3217e705c121SKalle Valo goto out_clear_te; 3218e705c121SKalle Valo } 3219e705c121SKalle Valo 3220e705c121SKalle Valo /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 3221e705c121SKalle Valo res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 3222e705c121SKalle Valo /* should never fail */ 3223e705c121SKalle Valo WARN_ON_ONCE(res); 3224e705c121SKalle Valo 3225e705c121SKalle Valo if (res) { 3226e705c121SKalle Valo out_clear_te: 3227e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 3228e705c121SKalle Valo iwl_mvm_te_clear_data(mvm, te_data); 3229e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 3230e705c121SKalle Valo } 3231e705c121SKalle Valo 3232e705c121SKalle Valo return res; 3233e705c121SKalle Valo } 3234e705c121SKalle Valo 3235e705c121SKalle Valo static int iwl_mvm_roc(struct ieee80211_hw *hw, 3236e705c121SKalle Valo struct ieee80211_vif *vif, 3237e705c121SKalle Valo struct ieee80211_channel *channel, 3238e705c121SKalle Valo int duration, 3239e705c121SKalle Valo enum ieee80211_roc_type type) 3240e705c121SKalle Valo { 3241e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3242e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3243e705c121SKalle Valo struct cfg80211_chan_def chandef; 3244e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt; 3245e705c121SKalle Valo int ret, i; 3246e705c121SKalle Valo 3247e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 3248e705c121SKalle Valo duration, type); 3249e705c121SKalle Valo 3250e705c121SKalle Valo flush_work(&mvm->roc_done_wk); 3251e705c121SKalle Valo 3252e705c121SKalle Valo mutex_lock(&mvm->mutex); 3253e705c121SKalle Valo 3254e705c121SKalle Valo switch (vif->type) { 3255e705c121SKalle Valo case NL80211_IFTYPE_STATION: 3256e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 3257e705c121SKalle Valo IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 3258e705c121SKalle Valo /* Use aux roc framework (HS20) */ 3259e705c121SKalle Valo ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 3260e705c121SKalle Valo vif, duration); 3261e705c121SKalle Valo goto out_unlock; 3262e705c121SKalle Valo } 3263e705c121SKalle Valo IWL_ERR(mvm, "hotspot not supported\n"); 3264e705c121SKalle Valo ret = -EINVAL; 3265e705c121SKalle Valo goto out_unlock; 3266e705c121SKalle Valo case NL80211_IFTYPE_P2P_DEVICE: 3267e705c121SKalle Valo /* handle below */ 3268e705c121SKalle Valo break; 3269e705c121SKalle Valo default: 3270e705c121SKalle Valo IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 3271e705c121SKalle Valo ret = -EINVAL; 3272e705c121SKalle Valo goto out_unlock; 3273e705c121SKalle Valo } 3274e705c121SKalle Valo 3275e705c121SKalle Valo for (i = 0; i < NUM_PHY_CTX; i++) { 3276e705c121SKalle Valo phy_ctxt = &mvm->phy_ctxts[i]; 3277e705c121SKalle Valo if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) 3278e705c121SKalle Valo continue; 3279e705c121SKalle Valo 3280e705c121SKalle Valo if (phy_ctxt->ref && channel == phy_ctxt->channel) { 3281e705c121SKalle Valo /* 3282e705c121SKalle Valo * Unbind the P2P_DEVICE from the current PHY context, 3283e705c121SKalle Valo * and if the PHY context is not used remove it. 3284e705c121SKalle Valo */ 3285e705c121SKalle Valo ret = iwl_mvm_binding_remove_vif(mvm, vif); 3286e705c121SKalle Valo if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 3287e705c121SKalle Valo goto out_unlock; 3288e705c121SKalle Valo 3289e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 3290e705c121SKalle Valo 3291e705c121SKalle Valo /* Bind the P2P_DEVICE to the current PHY Context */ 3292e705c121SKalle Valo mvmvif->phy_ctxt = phy_ctxt; 3293e705c121SKalle Valo 3294e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 3295e705c121SKalle Valo if (WARN(ret, "Failed binding P2P_DEVICE\n")) 3296e705c121SKalle Valo goto out_unlock; 3297e705c121SKalle Valo 3298e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 3299e705c121SKalle Valo goto schedule_time_event; 3300e705c121SKalle Valo } 3301e705c121SKalle Valo } 3302e705c121SKalle Valo 3303e705c121SKalle Valo /* Need to update the PHY context only if the ROC channel changed */ 3304e705c121SKalle Valo if (channel == mvmvif->phy_ctxt->channel) 3305e705c121SKalle Valo goto schedule_time_event; 3306e705c121SKalle Valo 3307e705c121SKalle Valo cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 3308e705c121SKalle Valo 3309e705c121SKalle Valo /* 3310e705c121SKalle Valo * Change the PHY context configuration as it is currently referenced 3311e705c121SKalle Valo * only by the P2P Device MAC 3312e705c121SKalle Valo */ 3313e705c121SKalle Valo if (mvmvif->phy_ctxt->ref == 1) { 3314e705c121SKalle Valo ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, 3315e705c121SKalle Valo &chandef, 1, 1); 3316e705c121SKalle Valo if (ret) 3317e705c121SKalle Valo goto out_unlock; 3318e705c121SKalle Valo } else { 3319e705c121SKalle Valo /* 3320e705c121SKalle Valo * The PHY context is shared with other MACs. Need to remove the 3321e705c121SKalle Valo * P2P Device from the binding, allocate an new PHY context and 3322e705c121SKalle Valo * create a new binding 3323e705c121SKalle Valo */ 3324e705c121SKalle Valo phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 3325e705c121SKalle Valo if (!phy_ctxt) { 3326e705c121SKalle Valo ret = -ENOSPC; 3327e705c121SKalle Valo goto out_unlock; 3328e705c121SKalle Valo } 3329e705c121SKalle Valo 3330e705c121SKalle Valo ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 3331e705c121SKalle Valo 1, 1); 3332e705c121SKalle Valo if (ret) { 3333e705c121SKalle Valo IWL_ERR(mvm, "Failed to change PHY context\n"); 3334e705c121SKalle Valo goto out_unlock; 3335e705c121SKalle Valo } 3336e705c121SKalle Valo 3337e705c121SKalle Valo /* Unbind the P2P_DEVICE from the current PHY context */ 3338e705c121SKalle Valo ret = iwl_mvm_binding_remove_vif(mvm, vif); 3339e705c121SKalle Valo if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 3340e705c121SKalle Valo goto out_unlock; 3341e705c121SKalle Valo 3342e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 3343e705c121SKalle Valo 3344e705c121SKalle Valo /* Bind the P2P_DEVICE to the new allocated PHY context */ 3345e705c121SKalle Valo mvmvif->phy_ctxt = phy_ctxt; 3346e705c121SKalle Valo 3347e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 3348e705c121SKalle Valo if (WARN(ret, "Failed binding P2P_DEVICE\n")) 3349e705c121SKalle Valo goto out_unlock; 3350e705c121SKalle Valo 3351e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 3352e705c121SKalle Valo } 3353e705c121SKalle Valo 3354e705c121SKalle Valo schedule_time_event: 3355e705c121SKalle Valo /* Schedule the time events */ 3356e705c121SKalle Valo ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 3357e705c121SKalle Valo 3358e705c121SKalle Valo out_unlock: 3359e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3360e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "leave\n"); 3361e705c121SKalle Valo return ret; 3362e705c121SKalle Valo } 3363e705c121SKalle Valo 3364e705c121SKalle Valo static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) 3365e705c121SKalle Valo { 3366e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3367e705c121SKalle Valo 3368e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "enter\n"); 3369e705c121SKalle Valo 3370e705c121SKalle Valo mutex_lock(&mvm->mutex); 3371e705c121SKalle Valo iwl_mvm_stop_roc(mvm); 3372e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3373e705c121SKalle Valo 3374e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "leave\n"); 3375e705c121SKalle Valo return 0; 3376e705c121SKalle Valo } 3377e705c121SKalle Valo 3378e705c121SKalle Valo static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 3379e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3380e705c121SKalle Valo { 3381e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3382e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt; 3383e705c121SKalle Valo int ret; 3384e705c121SKalle Valo 3385e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3386e705c121SKalle Valo 3387e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 3388e705c121SKalle Valo 3389e705c121SKalle Valo phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 3390e705c121SKalle Valo if (!phy_ctxt) { 3391e705c121SKalle Valo ret = -ENOSPC; 3392e705c121SKalle Valo goto out; 3393e705c121SKalle Valo } 3394e705c121SKalle Valo 3395e705c121SKalle Valo ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, 3396e705c121SKalle Valo ctx->rx_chains_static, 3397e705c121SKalle Valo ctx->rx_chains_dynamic); 3398e705c121SKalle Valo if (ret) { 3399e705c121SKalle Valo IWL_ERR(mvm, "Failed to add PHY context\n"); 3400e705c121SKalle Valo goto out; 3401e705c121SKalle Valo } 3402e705c121SKalle Valo 3403e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 3404e705c121SKalle Valo *phy_ctxt_id = phy_ctxt->id; 3405e705c121SKalle Valo out: 3406e705c121SKalle Valo return ret; 3407e705c121SKalle Valo } 3408e705c121SKalle Valo 3409e705c121SKalle Valo static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 3410e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3411e705c121SKalle Valo { 3412e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3413e705c121SKalle Valo int ret; 3414e705c121SKalle Valo 3415e705c121SKalle Valo mutex_lock(&mvm->mutex); 3416e705c121SKalle Valo ret = __iwl_mvm_add_chanctx(mvm, ctx); 3417e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3418e705c121SKalle Valo 3419e705c121SKalle Valo return ret; 3420e705c121SKalle Valo } 3421e705c121SKalle Valo 3422e705c121SKalle Valo static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 3423e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3424e705c121SKalle Valo { 3425e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3426e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3427e705c121SKalle Valo 3428e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3429e705c121SKalle Valo 3430e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 3431e705c121SKalle Valo } 3432e705c121SKalle Valo 3433e705c121SKalle Valo static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 3434e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3435e705c121SKalle Valo { 3436e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3437e705c121SKalle Valo 3438e705c121SKalle Valo mutex_lock(&mvm->mutex); 3439e705c121SKalle Valo __iwl_mvm_remove_chanctx(mvm, ctx); 3440e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3441e705c121SKalle Valo } 3442e705c121SKalle Valo 3443e705c121SKalle Valo static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 3444e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx, 3445e705c121SKalle Valo u32 changed) 3446e705c121SKalle Valo { 3447e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3448e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3449e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3450e705c121SKalle Valo 3451e705c121SKalle Valo if (WARN_ONCE((phy_ctxt->ref > 1) && 3452e705c121SKalle Valo (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 3453e705c121SKalle Valo IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 3454e705c121SKalle Valo IEEE80211_CHANCTX_CHANGE_RADAR | 3455e705c121SKalle Valo IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 3456e705c121SKalle Valo "Cannot change PHY. Ref=%d, changed=0x%X\n", 3457e705c121SKalle Valo phy_ctxt->ref, changed)) 3458e705c121SKalle Valo return; 3459e705c121SKalle Valo 3460e705c121SKalle Valo mutex_lock(&mvm->mutex); 3461e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 3462e705c121SKalle Valo iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, 3463e705c121SKalle Valo ctx->rx_chains_static, 3464e705c121SKalle Valo ctx->rx_chains_dynamic); 3465e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3466e705c121SKalle Valo } 3467e705c121SKalle Valo 3468e705c121SKalle Valo static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 3469e705c121SKalle Valo struct ieee80211_vif *vif, 3470e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx, 3471e705c121SKalle Valo bool switching_chanctx) 3472e705c121SKalle Valo { 3473e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3474e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3475e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3476e705c121SKalle Valo int ret; 3477e705c121SKalle Valo 3478e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3479e705c121SKalle Valo 3480e705c121SKalle Valo mvmvif->phy_ctxt = phy_ctxt; 3481e705c121SKalle Valo 3482e705c121SKalle Valo switch (vif->type) { 3483e705c121SKalle Valo case NL80211_IFTYPE_AP: 3484e705c121SKalle Valo /* only needed if we're switching chanctx (i.e. during CSA) */ 3485e705c121SKalle Valo if (switching_chanctx) { 3486e705c121SKalle Valo mvmvif->ap_ibss_active = true; 3487e705c121SKalle Valo break; 3488e705c121SKalle Valo } 3489e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 3490e705c121SKalle Valo /* 3491e705c121SKalle Valo * The AP binding flow is handled as part of the start_ap flow 3492e705c121SKalle Valo * (in bss_info_changed), similarly for IBSS. 3493e705c121SKalle Valo */ 3494e705c121SKalle Valo ret = 0; 3495e705c121SKalle Valo goto out; 3496e705c121SKalle Valo case NL80211_IFTYPE_STATION: 3497e705c121SKalle Valo break; 3498e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 3499e705c121SKalle Valo /* always disable PS when a monitor interface is active */ 3500e705c121SKalle Valo mvmvif->ps_disabled = true; 3501e705c121SKalle Valo break; 3502e705c121SKalle Valo default: 3503e705c121SKalle Valo ret = -EINVAL; 3504e705c121SKalle Valo goto out; 3505e705c121SKalle Valo } 3506e705c121SKalle Valo 3507e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 3508e705c121SKalle Valo if (ret) 3509e705c121SKalle Valo goto out; 3510e705c121SKalle Valo 3511e705c121SKalle Valo /* 3512e705c121SKalle Valo * Power state must be updated before quotas, 3513e705c121SKalle Valo * otherwise fw will complain. 3514e705c121SKalle Valo */ 3515e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 3516e705c121SKalle Valo 3517e705c121SKalle Valo /* Setting the quota at this stage is only required for monitor 3518e705c121SKalle Valo * interfaces. For the other types, the bss_info changed flow 3519e705c121SKalle Valo * will handle quota settings. 3520e705c121SKalle Valo */ 3521e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_MONITOR) { 3522e705c121SKalle Valo mvmvif->monitor_active = true; 3523e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, false, NULL); 3524e705c121SKalle Valo if (ret) 3525e705c121SKalle Valo goto out_remove_binding; 35260e39eb03SChaya Rachel Ivgi 35270e39eb03SChaya Rachel Ivgi ret = iwl_mvm_add_snif_sta(mvm, vif); 35280e39eb03SChaya Rachel Ivgi if (ret) 35290e39eb03SChaya Rachel Ivgi goto out_remove_binding; 35300e39eb03SChaya Rachel Ivgi 3531e705c121SKalle Valo } 3532e705c121SKalle Valo 3533e705c121SKalle Valo /* Handle binding during CSA */ 3534e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP) { 3535e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, NULL); 3536e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3537e705c121SKalle Valo } 3538e705c121SKalle Valo 3539e705c121SKalle Valo if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { 3540e705c121SKalle Valo u32 duration = 2 * vif->bss_conf.beacon_int; 3541e705c121SKalle Valo 3542e705c121SKalle Valo /* iwl_mvm_protect_session() reads directly from the 3543e705c121SKalle Valo * device (the system time), so make sure it is 3544e705c121SKalle Valo * available. 3545e705c121SKalle Valo */ 3546e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA); 3547e705c121SKalle Valo if (ret) 3548e705c121SKalle Valo goto out_remove_binding; 3549e705c121SKalle Valo 3550e705c121SKalle Valo /* Protect the session to make sure we hear the first 3551e705c121SKalle Valo * beacon on the new channel. 3552e705c121SKalle Valo */ 3553e705c121SKalle Valo iwl_mvm_protect_session(mvm, vif, duration, duration, 3554e705c121SKalle Valo vif->bss_conf.beacon_int / 2, 3555e705c121SKalle Valo true); 3556e705c121SKalle Valo 3557e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA); 3558e705c121SKalle Valo 3559e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, NULL); 3560e705c121SKalle Valo } 3561e705c121SKalle Valo 3562e705c121SKalle Valo goto out; 3563e705c121SKalle Valo 3564e705c121SKalle Valo out_remove_binding: 3565e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 3566e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 3567e705c121SKalle Valo out: 3568e705c121SKalle Valo if (ret) 3569e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 3570e705c121SKalle Valo return ret; 3571e705c121SKalle Valo } 3572e705c121SKalle Valo static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 3573e705c121SKalle Valo struct ieee80211_vif *vif, 3574e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3575e705c121SKalle Valo { 3576e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3577e705c121SKalle Valo int ret; 3578e705c121SKalle Valo 3579e705c121SKalle Valo mutex_lock(&mvm->mutex); 3580e705c121SKalle Valo ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); 3581e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3582e705c121SKalle Valo 3583e705c121SKalle Valo return ret; 3584e705c121SKalle Valo } 3585e705c121SKalle Valo 3586e705c121SKalle Valo static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 3587e705c121SKalle Valo struct ieee80211_vif *vif, 3588e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx, 3589e705c121SKalle Valo bool switching_chanctx) 3590e705c121SKalle Valo { 3591e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3592e705c121SKalle Valo struct ieee80211_vif *disabled_vif = NULL; 3593e705c121SKalle Valo 3594e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3595e705c121SKalle Valo 3596e705c121SKalle Valo iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); 3597e705c121SKalle Valo 3598e705c121SKalle Valo switch (vif->type) { 3599e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 3600e705c121SKalle Valo goto out; 3601e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 3602e705c121SKalle Valo mvmvif->monitor_active = false; 3603e705c121SKalle Valo mvmvif->ps_disabled = false; 36040e39eb03SChaya Rachel Ivgi iwl_mvm_rm_snif_sta(mvm, vif); 3605e705c121SKalle Valo break; 3606e705c121SKalle Valo case NL80211_IFTYPE_AP: 3607e705c121SKalle Valo /* This part is triggered only during CSA */ 3608e705c121SKalle Valo if (!switching_chanctx || !mvmvif->ap_ibss_active) 3609e705c121SKalle Valo goto out; 3610e705c121SKalle Valo 3611e705c121SKalle Valo mvmvif->csa_countdown = false; 3612e705c121SKalle Valo 3613e705c121SKalle Valo /* Set CS bit on all the stations */ 3614e705c121SKalle Valo iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 3615e705c121SKalle Valo 3616e705c121SKalle Valo /* Save blocked iface, the timeout is set on the next beacon */ 3617e705c121SKalle Valo rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 3618e705c121SKalle Valo 3619e705c121SKalle Valo mvmvif->ap_ibss_active = false; 3620e705c121SKalle Valo break; 3621e705c121SKalle Valo case NL80211_IFTYPE_STATION: 3622e705c121SKalle Valo if (!switching_chanctx) 3623e705c121SKalle Valo break; 3624e705c121SKalle Valo 3625e705c121SKalle Valo disabled_vif = vif; 3626e705c121SKalle Valo 3627e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 3628e705c121SKalle Valo break; 3629e705c121SKalle Valo default: 3630e705c121SKalle Valo break; 3631e705c121SKalle Valo } 3632e705c121SKalle Valo 3633e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, disabled_vif); 3634e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 3635e705c121SKalle Valo 3636e705c121SKalle Valo out: 3637e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 3638e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 3639e705c121SKalle Valo } 3640e705c121SKalle Valo 3641e705c121SKalle Valo static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 3642e705c121SKalle Valo struct ieee80211_vif *vif, 3643e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3644e705c121SKalle Valo { 3645e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3646e705c121SKalle Valo 3647e705c121SKalle Valo mutex_lock(&mvm->mutex); 3648e705c121SKalle Valo __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); 3649e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3650e705c121SKalle Valo } 3651e705c121SKalle Valo 3652e705c121SKalle Valo static int 3653e705c121SKalle Valo iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 3654e705c121SKalle Valo struct ieee80211_vif_chanctx_switch *vifs) 3655e705c121SKalle Valo { 3656e705c121SKalle Valo int ret; 3657e705c121SKalle Valo 3658e705c121SKalle Valo mutex_lock(&mvm->mutex); 3659e705c121SKalle Valo __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 3660e705c121SKalle Valo __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 3661e705c121SKalle Valo 3662e705c121SKalle Valo ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 3663e705c121SKalle Valo if (ret) { 3664e705c121SKalle Valo IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 3665e705c121SKalle Valo goto out_reassign; 3666e705c121SKalle Valo } 3667e705c121SKalle Valo 3668e705c121SKalle Valo ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 3669e705c121SKalle Valo true); 3670e705c121SKalle Valo if (ret) { 3671e705c121SKalle Valo IWL_ERR(mvm, 3672e705c121SKalle Valo "failed to assign new_ctx during channel switch\n"); 3673e705c121SKalle Valo goto out_remove; 3674e705c121SKalle Valo } 3675e705c121SKalle Valo 3676e705c121SKalle Valo /* we don't support TDLS during DCM - can be caused by channel switch */ 3677e705c121SKalle Valo if (iwl_mvm_phy_ctx_count(mvm) > 1) 3678e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 3679e705c121SKalle Valo 3680e705c121SKalle Valo goto out; 3681e705c121SKalle Valo 3682e705c121SKalle Valo out_remove: 3683e705c121SKalle Valo __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 3684e705c121SKalle Valo 3685e705c121SKalle Valo out_reassign: 3686e705c121SKalle Valo if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 3687e705c121SKalle Valo IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 3688e705c121SKalle Valo goto out_restart; 3689e705c121SKalle Valo } 3690e705c121SKalle Valo 3691e705c121SKalle Valo if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 3692e705c121SKalle Valo true)) { 3693e705c121SKalle Valo IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 3694e705c121SKalle Valo goto out_restart; 3695e705c121SKalle Valo } 3696e705c121SKalle Valo 3697e705c121SKalle Valo goto out; 3698e705c121SKalle Valo 3699e705c121SKalle Valo out_restart: 3700e705c121SKalle Valo /* things keep failing, better restart the hw */ 3701e705c121SKalle Valo iwl_mvm_nic_restart(mvm, false); 3702e705c121SKalle Valo 3703e705c121SKalle Valo out: 3704e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3705e705c121SKalle Valo 3706e705c121SKalle Valo return ret; 3707e705c121SKalle Valo } 3708e705c121SKalle Valo 3709e705c121SKalle Valo static int 3710e705c121SKalle Valo iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 3711e705c121SKalle Valo struct ieee80211_vif_chanctx_switch *vifs) 3712e705c121SKalle Valo { 3713e705c121SKalle Valo int ret; 3714e705c121SKalle Valo 3715e705c121SKalle Valo mutex_lock(&mvm->mutex); 3716e705c121SKalle Valo __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 3717e705c121SKalle Valo 3718e705c121SKalle Valo ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 3719e705c121SKalle Valo true); 3720e705c121SKalle Valo if (ret) { 3721e705c121SKalle Valo IWL_ERR(mvm, 3722e705c121SKalle Valo "failed to assign new_ctx during channel switch\n"); 3723e705c121SKalle Valo goto out_reassign; 3724e705c121SKalle Valo } 3725e705c121SKalle Valo 3726e705c121SKalle Valo goto out; 3727e705c121SKalle Valo 3728e705c121SKalle Valo out_reassign: 3729e705c121SKalle Valo if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 3730e705c121SKalle Valo true)) { 3731e705c121SKalle Valo IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 3732e705c121SKalle Valo goto out_restart; 3733e705c121SKalle Valo } 3734e705c121SKalle Valo 3735e705c121SKalle Valo goto out; 3736e705c121SKalle Valo 3737e705c121SKalle Valo out_restart: 3738e705c121SKalle Valo /* things keep failing, better restart the hw */ 3739e705c121SKalle Valo iwl_mvm_nic_restart(mvm, false); 3740e705c121SKalle Valo 3741e705c121SKalle Valo out: 3742e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3743e705c121SKalle Valo 3744e705c121SKalle Valo return ret; 3745e705c121SKalle Valo } 3746e705c121SKalle Valo 3747e705c121SKalle Valo static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 3748e705c121SKalle Valo struct ieee80211_vif_chanctx_switch *vifs, 3749e705c121SKalle Valo int n_vifs, 3750e705c121SKalle Valo enum ieee80211_chanctx_switch_mode mode) 3751e705c121SKalle Valo { 3752e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3753e705c121SKalle Valo int ret; 3754e705c121SKalle Valo 3755e705c121SKalle Valo /* we only support a single-vif right now */ 3756e705c121SKalle Valo if (n_vifs > 1) 3757e705c121SKalle Valo return -EOPNOTSUPP; 3758e705c121SKalle Valo 3759e705c121SKalle Valo switch (mode) { 3760e705c121SKalle Valo case CHANCTX_SWMODE_SWAP_CONTEXTS: 3761e705c121SKalle Valo ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); 3762e705c121SKalle Valo break; 3763e705c121SKalle Valo case CHANCTX_SWMODE_REASSIGN_VIF: 3764e705c121SKalle Valo ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); 3765e705c121SKalle Valo break; 3766e705c121SKalle Valo default: 3767e705c121SKalle Valo ret = -EOPNOTSUPP; 3768e705c121SKalle Valo break; 3769e705c121SKalle Valo } 3770e705c121SKalle Valo 3771e705c121SKalle Valo return ret; 3772e705c121SKalle Valo } 3773e705c121SKalle Valo 37742f0282dbSJohannes Berg static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 37752f0282dbSJohannes Berg { 37762f0282dbSJohannes Berg struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 37772f0282dbSJohannes Berg 37782f0282dbSJohannes Berg return mvm->ibss_manager; 37792f0282dbSJohannes Berg } 37802f0282dbSJohannes Berg 3781e705c121SKalle Valo static int iwl_mvm_set_tim(struct ieee80211_hw *hw, 3782e705c121SKalle Valo struct ieee80211_sta *sta, 3783e705c121SKalle Valo bool set) 3784e705c121SKalle Valo { 3785e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3786e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3787e705c121SKalle Valo 3788e705c121SKalle Valo if (!mvm_sta || !mvm_sta->vif) { 3789e705c121SKalle Valo IWL_ERR(mvm, "Station is not associated to a vif\n"); 3790e705c121SKalle Valo return -EINVAL; 3791e705c121SKalle Valo } 3792e705c121SKalle Valo 3793e705c121SKalle Valo return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); 3794e705c121SKalle Valo } 3795e705c121SKalle Valo 3796e705c121SKalle Valo #ifdef CONFIG_NL80211_TESTMODE 3797e705c121SKalle Valo static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 3798e705c121SKalle Valo [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 3799e705c121SKalle Valo [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 3800e705c121SKalle Valo [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 3801e705c121SKalle Valo }; 3802e705c121SKalle Valo 3803e705c121SKalle Valo static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 3804e705c121SKalle Valo struct ieee80211_vif *vif, 3805e705c121SKalle Valo void *data, int len) 3806e705c121SKalle Valo { 3807e705c121SKalle Valo struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 3808e705c121SKalle Valo int err; 3809e705c121SKalle Valo u32 noa_duration; 3810e705c121SKalle Valo 3811fceb6435SJohannes Berg err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy, 3812fceb6435SJohannes Berg NULL); 3813e705c121SKalle Valo if (err) 3814e705c121SKalle Valo return err; 3815e705c121SKalle Valo 3816e705c121SKalle Valo if (!tb[IWL_MVM_TM_ATTR_CMD]) 3817e705c121SKalle Valo return -EINVAL; 3818e705c121SKalle Valo 3819e705c121SKalle Valo switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 3820e705c121SKalle Valo case IWL_MVM_TM_CMD_SET_NOA: 3821e705c121SKalle Valo if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 3822e705c121SKalle Valo !vif->bss_conf.enable_beacon || 3823e705c121SKalle Valo !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 3824e705c121SKalle Valo return -EINVAL; 3825e705c121SKalle Valo 3826e705c121SKalle Valo noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 3827e705c121SKalle Valo if (noa_duration >= vif->bss_conf.beacon_int) 3828e705c121SKalle Valo return -EINVAL; 3829e705c121SKalle Valo 3830e705c121SKalle Valo mvm->noa_duration = noa_duration; 3831e705c121SKalle Valo mvm->noa_vif = vif; 3832e705c121SKalle Valo 3833e705c121SKalle Valo return iwl_mvm_update_quotas(mvm, false, NULL); 3834e705c121SKalle Valo case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 3835e705c121SKalle Valo /* must be associated client vif - ignore authorized */ 3836e705c121SKalle Valo if (!vif || vif->type != NL80211_IFTYPE_STATION || 3837e705c121SKalle Valo !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || 3838e705c121SKalle Valo !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 3839e705c121SKalle Valo return -EINVAL; 3840e705c121SKalle Valo 3841e705c121SKalle Valo if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 3842e705c121SKalle Valo return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 3843e705c121SKalle Valo return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3844e705c121SKalle Valo } 3845e705c121SKalle Valo 3846e705c121SKalle Valo return -EOPNOTSUPP; 3847e705c121SKalle Valo } 3848e705c121SKalle Valo 3849e705c121SKalle Valo static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 3850e705c121SKalle Valo struct ieee80211_vif *vif, 3851e705c121SKalle Valo void *data, int len) 3852e705c121SKalle Valo { 3853e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3854e705c121SKalle Valo int err; 3855e705c121SKalle Valo 3856e705c121SKalle Valo mutex_lock(&mvm->mutex); 3857e705c121SKalle Valo err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 3858e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3859e705c121SKalle Valo 3860e705c121SKalle Valo return err; 3861e705c121SKalle Valo } 3862e705c121SKalle Valo #endif 3863e705c121SKalle Valo 3864e705c121SKalle Valo static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, 3865e705c121SKalle Valo struct ieee80211_vif *vif, 3866e705c121SKalle Valo struct ieee80211_channel_switch *chsw) 3867e705c121SKalle Valo { 3868e705c121SKalle Valo /* By implementing this operation, we prevent mac80211 from 3869e705c121SKalle Valo * starting its own channel switch timer, so that we can call 3870e705c121SKalle Valo * ieee80211_chswitch_done() ourselves at the right time 3871e705c121SKalle Valo * (which is when the absence time event starts). 3872e705c121SKalle Valo */ 3873e705c121SKalle Valo 3874e705c121SKalle Valo IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 3875e705c121SKalle Valo "dummy channel switch op\n"); 3876e705c121SKalle Valo } 3877e705c121SKalle Valo 3878e705c121SKalle Valo static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 3879e705c121SKalle Valo struct ieee80211_vif *vif, 3880e705c121SKalle Valo struct ieee80211_channel_switch *chsw) 3881e705c121SKalle Valo { 3882e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3883e705c121SKalle Valo struct ieee80211_vif *csa_vif; 3884e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3885e705c121SKalle Valo u32 apply_time; 3886e705c121SKalle Valo int ret; 3887e705c121SKalle Valo 3888e705c121SKalle Valo mutex_lock(&mvm->mutex); 3889e705c121SKalle Valo 3890e705c121SKalle Valo mvmvif->csa_failed = false; 3891e705c121SKalle Valo 3892e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 3893e705c121SKalle Valo chsw->chandef.center_freq1); 3894e705c121SKalle Valo 3895e705c121SKalle Valo iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH); 3896e705c121SKalle Valo 3897e705c121SKalle Valo switch (vif->type) { 3898e705c121SKalle Valo case NL80211_IFTYPE_AP: 3899e705c121SKalle Valo csa_vif = 3900e705c121SKalle Valo rcu_dereference_protected(mvm->csa_vif, 3901e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3902e705c121SKalle Valo if (WARN_ONCE(csa_vif && csa_vif->csa_active, 3903e705c121SKalle Valo "Another CSA is already in progress")) { 3904e705c121SKalle Valo ret = -EBUSY; 3905e705c121SKalle Valo goto out_unlock; 3906e705c121SKalle Valo } 3907e705c121SKalle Valo 3908d3a108a4SAndrei Otcheretianski /* we still didn't unblock tx. prevent new CS meanwhile */ 3909d3a108a4SAndrei Otcheretianski if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 3910d3a108a4SAndrei Otcheretianski lockdep_is_held(&mvm->mutex))) { 3911d3a108a4SAndrei Otcheretianski ret = -EBUSY; 3912d3a108a4SAndrei Otcheretianski goto out_unlock; 3913d3a108a4SAndrei Otcheretianski } 3914d3a108a4SAndrei Otcheretianski 3915e705c121SKalle Valo rcu_assign_pointer(mvm->csa_vif, vif); 3916e705c121SKalle Valo 3917e705c121SKalle Valo if (WARN_ONCE(mvmvif->csa_countdown, 3918e705c121SKalle Valo "Previous CSA countdown didn't complete")) { 3919e705c121SKalle Valo ret = -EBUSY; 3920e705c121SKalle Valo goto out_unlock; 3921e705c121SKalle Valo } 3922e705c121SKalle Valo 3923d3a108a4SAndrei Otcheretianski mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 3924d3a108a4SAndrei Otcheretianski 3925e705c121SKalle Valo break; 3926e705c121SKalle Valo case NL80211_IFTYPE_STATION: 392703098268SAviya Erenfeld if (mvmvif->lqm_active) 392803098268SAviya Erenfeld iwl_mvm_send_lqm_cmd(vif, 392903098268SAviya Erenfeld LQM_CMD_OPERATION_STOP_MEASUREMENT, 393003098268SAviya Erenfeld 0, 0); 393103098268SAviya Erenfeld 3932e705c121SKalle Valo /* Schedule the time event to a bit before beacon 1, 3933e705c121SKalle Valo * to make sure we're in the new channel when the 3934e705c121SKalle Valo * GO/AP arrives. 3935e705c121SKalle Valo */ 3936e705c121SKalle Valo apply_time = chsw->device_timestamp + 3937e705c121SKalle Valo ((vif->bss_conf.beacon_int * (chsw->count - 1) - 3938e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 3939e705c121SKalle Valo 3940e705c121SKalle Valo if (chsw->block_tx) 3941e705c121SKalle Valo iwl_mvm_csa_client_absent(mvm, vif); 3942e705c121SKalle Valo 3943e705c121SKalle Valo iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 3944e705c121SKalle Valo apply_time); 3945e705c121SKalle Valo if (mvmvif->bf_data.bf_enabled) { 3946e705c121SKalle Valo ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3947e705c121SKalle Valo if (ret) 3948e705c121SKalle Valo goto out_unlock; 3949e705c121SKalle Valo } 3950e705c121SKalle Valo 3951e705c121SKalle Valo break; 3952e705c121SKalle Valo default: 3953e705c121SKalle Valo break; 3954e705c121SKalle Valo } 3955e705c121SKalle Valo 3956e705c121SKalle Valo mvmvif->ps_disabled = true; 3957e705c121SKalle Valo 3958e705c121SKalle Valo ret = iwl_mvm_power_update_ps(mvm); 3959e705c121SKalle Valo if (ret) 3960e705c121SKalle Valo goto out_unlock; 3961e705c121SKalle Valo 3962e705c121SKalle Valo /* we won't be on this channel any longer */ 3963e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 3964e705c121SKalle Valo 3965e705c121SKalle Valo out_unlock: 3966e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3967e705c121SKalle Valo 3968e705c121SKalle Valo return ret; 3969e705c121SKalle Valo } 3970e705c121SKalle Valo 3971e705c121SKalle Valo static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 3972e705c121SKalle Valo struct ieee80211_vif *vif) 3973e705c121SKalle Valo { 3974e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3975e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3976e705c121SKalle Valo int ret; 3977e705c121SKalle Valo 3978e705c121SKalle Valo mutex_lock(&mvm->mutex); 3979e705c121SKalle Valo 3980e705c121SKalle Valo if (mvmvif->csa_failed) { 3981e705c121SKalle Valo mvmvif->csa_failed = false; 3982e705c121SKalle Valo ret = -EIO; 3983e705c121SKalle Valo goto out_unlock; 3984e705c121SKalle Valo } 3985e705c121SKalle Valo 3986e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) { 3987e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 3988e705c121SKalle Valo 3989e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 3990e705c121SKalle Valo mvmvif->ap_sta_id); 3991e705c121SKalle Valo 3992e705c121SKalle Valo if (WARN_ON(!mvmsta)) { 3993e705c121SKalle Valo ret = -EIO; 3994e705c121SKalle Valo goto out_unlock; 3995e705c121SKalle Valo } 3996e705c121SKalle Valo 3997e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 3998e705c121SKalle Valo 3999e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4000e705c121SKalle Valo 4001e705c121SKalle Valo ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 4002e705c121SKalle Valo if (ret) 4003e705c121SKalle Valo goto out_unlock; 4004e705c121SKalle Valo 4005e705c121SKalle Valo iwl_mvm_stop_session_protection(mvm, vif); 4006e705c121SKalle Valo } 4007e705c121SKalle Valo 4008e705c121SKalle Valo mvmvif->ps_disabled = false; 4009e705c121SKalle Valo 4010e705c121SKalle Valo ret = iwl_mvm_power_update_ps(mvm); 4011e705c121SKalle Valo 4012e705c121SKalle Valo out_unlock: 4013e705c121SKalle Valo mutex_unlock(&mvm->mutex); 4014e705c121SKalle Valo 4015e705c121SKalle Valo return ret; 4016e705c121SKalle Valo } 4017e705c121SKalle Valo 4018e705c121SKalle Valo static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, 4019e705c121SKalle Valo struct ieee80211_vif *vif, u32 queues, bool drop) 4020e705c121SKalle Valo { 4021e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4022e705c121SKalle Valo struct iwl_mvm_vif *mvmvif; 4023e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 4024e705c121SKalle Valo struct ieee80211_sta *sta; 4025e705c121SKalle Valo int i; 4026e705c121SKalle Valo u32 msk = 0; 4027e705c121SKalle Valo 4028e705c121SKalle Valo if (!vif || vif->type != NL80211_IFTYPE_STATION) 4029e705c121SKalle Valo return; 4030e705c121SKalle Valo 403124afba76SLiad Kaufman /* Make sure we're done with the deferred traffic before flushing */ 403224afba76SLiad Kaufman if (iwl_mvm_is_dqa_supported(mvm)) 403324afba76SLiad Kaufman flush_work(&mvm->add_stream_wk); 403424afba76SLiad Kaufman 4035e705c121SKalle Valo mutex_lock(&mvm->mutex); 4036e705c121SKalle Valo mvmvif = iwl_mvm_vif_from_mac80211(vif); 4037e705c121SKalle Valo 4038e705c121SKalle Valo /* flush the AP-station and all TDLS peers */ 40390ae98812SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 4040e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4041e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 4042e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) 4043e705c121SKalle Valo continue; 4044e705c121SKalle Valo 4045e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_mac80211(sta); 4046e705c121SKalle Valo if (mvmsta->vif != vif) 4047e705c121SKalle Valo continue; 4048e705c121SKalle Valo 4049e705c121SKalle Valo /* make sure only TDLS peers or the AP are flushed */ 4050e705c121SKalle Valo WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); 4051e705c121SKalle Valo 4052d49394a1SSara Sharon if (drop) { 4053d49394a1SSara Sharon if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0)) 4054d49394a1SSara Sharon IWL_ERR(mvm, "flush request fail\n"); 4055d49394a1SSara Sharon } else { 4056e705c121SKalle Valo msk |= mvmsta->tfd_queue_msk; 4057d6d517b7SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) 4058d6d517b7SSara Sharon iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 4059e705c121SKalle Valo } 4060d49394a1SSara Sharon } 4061e705c121SKalle Valo 4062e705c121SKalle Valo mutex_unlock(&mvm->mutex); 4063e705c121SKalle Valo 4064e705c121SKalle Valo /* this can take a while, and we may need/want other operations 4065e705c121SKalle Valo * to succeed while doing this, so do it without the mutex held 4066e705c121SKalle Valo */ 4067d6d517b7SSara Sharon if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 4068a1a57877SSara Sharon iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 4069e705c121SKalle Valo } 4070e705c121SKalle Valo 4071e705c121SKalle Valo static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 4072e705c121SKalle Valo struct survey_info *survey) 4073e705c121SKalle Valo { 4074e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4075e705c121SKalle Valo int ret; 4076e705c121SKalle Valo 4077e705c121SKalle Valo memset(survey, 0, sizeof(*survey)); 4078e705c121SKalle Valo 4079e705c121SKalle Valo /* only support global statistics right now */ 4080e705c121SKalle Valo if (idx != 0) 4081e705c121SKalle Valo return -ENOENT; 4082e705c121SKalle Valo 4083280a3efaSJohannes Berg if (!fw_has_capa(&mvm->fw->ucode_capa, 4084e705c121SKalle Valo IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 4085e705c121SKalle Valo return -ENOENT; 4086e705c121SKalle Valo 4087e705c121SKalle Valo mutex_lock(&mvm->mutex); 4088e705c121SKalle Valo 4089aab6930dSJohannes Berg if (iwl_mvm_firmware_running(mvm)) { 4090e705c121SKalle Valo ret = iwl_mvm_request_statistics(mvm, false); 4091e705c121SKalle Valo if (ret) 4092e705c121SKalle Valo goto out; 4093e705c121SKalle Valo } 4094e705c121SKalle Valo 4095e705c121SKalle Valo survey->filled = SURVEY_INFO_TIME | 4096e705c121SKalle Valo SURVEY_INFO_TIME_RX | 4097e705c121SKalle Valo SURVEY_INFO_TIME_TX | 4098e705c121SKalle Valo SURVEY_INFO_TIME_SCAN; 4099e705c121SKalle Valo survey->time = mvm->accu_radio_stats.on_time_rf + 4100e705c121SKalle Valo mvm->radio_stats.on_time_rf; 4101e705c121SKalle Valo do_div(survey->time, USEC_PER_MSEC); 4102e705c121SKalle Valo 4103e705c121SKalle Valo survey->time_rx = mvm->accu_radio_stats.rx_time + 4104e705c121SKalle Valo mvm->radio_stats.rx_time; 4105e705c121SKalle Valo do_div(survey->time_rx, USEC_PER_MSEC); 4106e705c121SKalle Valo 4107e705c121SKalle Valo survey->time_tx = mvm->accu_radio_stats.tx_time + 4108e705c121SKalle Valo mvm->radio_stats.tx_time; 4109e705c121SKalle Valo do_div(survey->time_tx, USEC_PER_MSEC); 4110e705c121SKalle Valo 4111e705c121SKalle Valo survey->time_scan = mvm->accu_radio_stats.on_time_scan + 4112e705c121SKalle Valo mvm->radio_stats.on_time_scan; 4113e705c121SKalle Valo do_div(survey->time_scan, USEC_PER_MSEC); 4114e705c121SKalle Valo 4115e705c121SKalle Valo ret = 0; 4116e705c121SKalle Valo out: 4117e705c121SKalle Valo mutex_unlock(&mvm->mutex); 4118e705c121SKalle Valo return ret; 4119e705c121SKalle Valo } 4120e705c121SKalle Valo 4121e705c121SKalle Valo static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 4122e705c121SKalle Valo struct ieee80211_vif *vif, 4123e705c121SKalle Valo struct ieee80211_sta *sta, 4124e705c121SKalle Valo struct station_info *sinfo) 4125e705c121SKalle Valo { 4126e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4127e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4128e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 4129e705c121SKalle Valo 4130988b5968SSara Sharon if (mvmsta->avg_energy) { 4131988b5968SSara Sharon sinfo->signal_avg = mvmsta->avg_energy; 4132988b5968SSara Sharon sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL_AVG); 4133988b5968SSara Sharon } 4134988b5968SSara Sharon 4135280a3efaSJohannes Berg if (!fw_has_capa(&mvm->fw->ucode_capa, 4136e705c121SKalle Valo IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 4137e705c121SKalle Valo return; 4138e705c121SKalle Valo 4139e705c121SKalle Valo /* if beacon filtering isn't on mac80211 does it anyway */ 4140e705c121SKalle Valo if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 4141e705c121SKalle Valo return; 4142e705c121SKalle Valo 4143e705c121SKalle Valo if (!vif->bss_conf.assoc) 4144e705c121SKalle Valo return; 4145e705c121SKalle Valo 4146e705c121SKalle Valo mutex_lock(&mvm->mutex); 4147e705c121SKalle Valo 4148e705c121SKalle Valo if (mvmvif->ap_sta_id != mvmsta->sta_id) 4149e705c121SKalle Valo goto unlock; 4150e705c121SKalle Valo 4151e705c121SKalle Valo if (iwl_mvm_request_statistics(mvm, false)) 4152e705c121SKalle Valo goto unlock; 4153e705c121SKalle Valo 4154e705c121SKalle Valo sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + 4155e705c121SKalle Valo mvmvif->beacon_stats.accu_num_beacons; 4156e705c121SKalle Valo sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX); 4157e705c121SKalle Valo if (mvmvif->beacon_stats.avg_signal) { 4158e705c121SKalle Valo /* firmware only reports a value after RXing a few beacons */ 4159e705c121SKalle Valo sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; 4160e705c121SKalle Valo sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 4161e705c121SKalle Valo } 4162e705c121SKalle Valo unlock: 4163e705c121SKalle Valo mutex_unlock(&mvm->mutex); 4164e705c121SKalle Valo } 4165e705c121SKalle Valo 4166e705c121SKalle Valo static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 4167e705c121SKalle Valo struct ieee80211_vif *vif, 4168e705c121SKalle Valo const struct ieee80211_event *event) 4169e705c121SKalle Valo { 41704c324a51SLuca Coelho #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 4171e705c121SKalle Valo do { \ 41724c324a51SLuca Coelho if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 4173e705c121SKalle Valo break; \ 41744c324a51SLuca Coelho iwl_mvm_fw_dbg_collect_trig(mvm, trig, _fmt); \ 4175e705c121SKalle Valo } while (0) 4176e705c121SKalle Valo 4177e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 4178e705c121SKalle Valo struct iwl_fw_dbg_trigger_mlme *trig_mlme; 4179e705c121SKalle Valo 4180e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME)) 4181e705c121SKalle Valo return; 4182e705c121SKalle Valo 4183e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME); 4184e705c121SKalle Valo trig_mlme = (void *)trig->data; 4185e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 4186e705c121SKalle Valo return; 4187e705c121SKalle Valo 4188e705c121SKalle Valo if (event->u.mlme.data == ASSOC_EVENT) { 4189e705c121SKalle Valo if (event->u.mlme.status == MLME_DENIED) 41904c324a51SLuca Coelho CHECK_MLME_TRIGGER(stop_assoc_denied, 4191e705c121SKalle Valo "DENIED ASSOC: reason %d", 4192e705c121SKalle Valo event->u.mlme.reason); 4193e705c121SKalle Valo else if (event->u.mlme.status == MLME_TIMEOUT) 41944c324a51SLuca Coelho CHECK_MLME_TRIGGER(stop_assoc_timeout, 4195e705c121SKalle Valo "ASSOC TIMEOUT"); 4196e705c121SKalle Valo } else if (event->u.mlme.data == AUTH_EVENT) { 4197e705c121SKalle Valo if (event->u.mlme.status == MLME_DENIED) 41984c324a51SLuca Coelho CHECK_MLME_TRIGGER(stop_auth_denied, 4199e705c121SKalle Valo "DENIED AUTH: reason %d", 4200e705c121SKalle Valo event->u.mlme.reason); 4201e705c121SKalle Valo else if (event->u.mlme.status == MLME_TIMEOUT) 42024c324a51SLuca Coelho CHECK_MLME_TRIGGER(stop_auth_timeout, 4203e705c121SKalle Valo "AUTH TIMEOUT"); 4204e705c121SKalle Valo } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 42054c324a51SLuca Coelho CHECK_MLME_TRIGGER(stop_rx_deauth, 4206e705c121SKalle Valo "DEAUTH RX %d", event->u.mlme.reason); 4207e705c121SKalle Valo } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 42084c324a51SLuca Coelho CHECK_MLME_TRIGGER(stop_tx_deauth, 4209e705c121SKalle Valo "DEAUTH TX %d", event->u.mlme.reason); 4210e705c121SKalle Valo } 4211e705c121SKalle Valo #undef CHECK_MLME_TRIGGER 4212e705c121SKalle Valo } 4213e705c121SKalle Valo 4214e705c121SKalle Valo static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 4215e705c121SKalle Valo struct ieee80211_vif *vif, 4216e705c121SKalle Valo const struct ieee80211_event *event) 4217e705c121SKalle Valo { 4218e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 4219e705c121SKalle Valo struct iwl_fw_dbg_trigger_ba *ba_trig; 4220e705c121SKalle Valo 4221e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) 4222e705c121SKalle Valo return; 4223e705c121SKalle Valo 4224e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); 4225e705c121SKalle Valo ba_trig = (void *)trig->data; 4226e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 4227e705c121SKalle Valo return; 4228e705c121SKalle Valo 4229e705c121SKalle Valo if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 4230e705c121SKalle Valo return; 4231e705c121SKalle Valo 4232e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(mvm, trig, 4233e705c121SKalle Valo "BAR received from %pM, tid %d, ssn %d", 4234e705c121SKalle Valo event->u.ba.sta->addr, event->u.ba.tid, 4235e705c121SKalle Valo event->u.ba.ssn); 4236e705c121SKalle Valo } 4237e705c121SKalle Valo 4238e705c121SKalle Valo static void 4239e705c121SKalle Valo iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm, 4240e705c121SKalle Valo struct ieee80211_vif *vif, 4241e705c121SKalle Valo const struct ieee80211_event *event) 4242e705c121SKalle Valo { 4243e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 4244e705c121SKalle Valo struct iwl_fw_dbg_trigger_ba *ba_trig; 4245e705c121SKalle Valo 4246e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) 4247e705c121SKalle Valo return; 4248e705c121SKalle Valo 4249e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); 4250e705c121SKalle Valo ba_trig = (void *)trig->data; 4251e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 4252e705c121SKalle Valo return; 4253e705c121SKalle Valo 4254e705c121SKalle Valo if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid))) 4255e705c121SKalle Valo return; 4256e705c121SKalle Valo 4257e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(mvm, trig, 4258e705c121SKalle Valo "Frame from %pM timed out, tid %d", 4259e705c121SKalle Valo event->u.ba.sta->addr, event->u.ba.tid); 4260e705c121SKalle Valo } 4261e705c121SKalle Valo 4262e705c121SKalle Valo static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 4263e705c121SKalle Valo struct ieee80211_vif *vif, 4264e705c121SKalle Valo const struct ieee80211_event *event) 4265e705c121SKalle Valo { 4266e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4267e705c121SKalle Valo 4268e705c121SKalle Valo switch (event->type) { 4269e705c121SKalle Valo case MLME_EVENT: 4270e705c121SKalle Valo iwl_mvm_event_mlme_callback(mvm, vif, event); 4271e705c121SKalle Valo break; 4272e705c121SKalle Valo case BAR_RX_EVENT: 4273e705c121SKalle Valo iwl_mvm_event_bar_rx_callback(mvm, vif, event); 4274e705c121SKalle Valo break; 4275e705c121SKalle Valo case BA_FRAME_TIMEOUT: 4276e705c121SKalle Valo iwl_mvm_event_frame_timeout_callback(mvm, vif, event); 4277e705c121SKalle Valo break; 4278e705c121SKalle Valo default: 4279e705c121SKalle Valo break; 4280e705c121SKalle Valo } 4281e705c121SKalle Valo } 4282e705c121SKalle Valo 4283d0ff5d22SSara Sharon void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 4284d0ff5d22SSara Sharon struct iwl_mvm_internal_rxq_notif *notif, 4285d0ff5d22SSara Sharon u32 size) 42860636b938SSara Sharon { 42870636b938SSara Sharon u32 qmask = BIT(mvm->trans->num_rx_queues) - 1; 42880636b938SSara Sharon int ret; 42890636b938SSara Sharon 42900636b938SSara Sharon lockdep_assert_held(&mvm->mutex); 42910636b938SSara Sharon 4292bc029469SSara Sharon /* TODO - remove a000 disablement when we have RXQ config API */ 4293bc029469SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm) || iwl_mvm_has_new_tx_api(mvm)) 42940636b938SSara Sharon return; 42950636b938SSara Sharon 4296d0ff5d22SSara Sharon notif->cookie = mvm->queue_sync_cookie; 42970636b938SSara Sharon 4298d0ff5d22SSara Sharon if (notif->sync) 4299d0ff5d22SSara Sharon atomic_set(&mvm->queue_sync_counter, 4300d0ff5d22SSara Sharon mvm->trans->num_rx_queues); 4301d0ff5d22SSara Sharon 4302d0ff5d22SSara Sharon ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, size); 43030636b938SSara Sharon if (ret) { 43040636b938SSara Sharon IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 43050636b938SSara Sharon goto out; 43060636b938SSara Sharon } 4307d0ff5d22SSara Sharon 43086ad04359SJohannes Berg if (notif->sync) { 43093a732c65SSara Sharon ret = wait_event_timeout(mvm->rx_sync_waitq, 43106ad04359SJohannes Berg atomic_read(&mvm->queue_sync_counter) == 0 || 43116ad04359SJohannes Berg iwl_mvm_is_radio_killed(mvm), 43120636b938SSara Sharon HZ); 43136ad04359SJohannes Berg WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm)); 43146ad04359SJohannes Berg } 43150636b938SSara Sharon 43160636b938SSara Sharon out: 43170636b938SSara Sharon atomic_set(&mvm->queue_sync_counter, 0); 43180636b938SSara Sharon mvm->queue_sync_cookie++; 43190636b938SSara Sharon } 43200636b938SSara Sharon 43210636b938SSara Sharon static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 43220636b938SSara Sharon { 43230636b938SSara Sharon struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4324d0ff5d22SSara Sharon struct iwl_mvm_internal_rxq_notif data = { 4325d0ff5d22SSara Sharon .type = IWL_MVM_RXQ_EMPTY, 4326d0ff5d22SSara Sharon .sync = 1, 4327d0ff5d22SSara Sharon }; 43280636b938SSara Sharon 43290636b938SSara Sharon mutex_lock(&mvm->mutex); 4330d0ff5d22SSara Sharon iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data)); 43310636b938SSara Sharon mutex_unlock(&mvm->mutex); 43320636b938SSara Sharon } 43330636b938SSara Sharon 4334e705c121SKalle Valo const struct ieee80211_ops iwl_mvm_hw_ops = { 4335e705c121SKalle Valo .tx = iwl_mvm_mac_tx, 4336e705c121SKalle Valo .ampdu_action = iwl_mvm_mac_ampdu_action, 4337e705c121SKalle Valo .start = iwl_mvm_mac_start, 4338e705c121SKalle Valo .reconfig_complete = iwl_mvm_mac_reconfig_complete, 4339e705c121SKalle Valo .stop = iwl_mvm_mac_stop, 4340e705c121SKalle Valo .add_interface = iwl_mvm_mac_add_interface, 4341e705c121SKalle Valo .remove_interface = iwl_mvm_mac_remove_interface, 4342e705c121SKalle Valo .config = iwl_mvm_mac_config, 4343e705c121SKalle Valo .prepare_multicast = iwl_mvm_prepare_multicast, 4344e705c121SKalle Valo .configure_filter = iwl_mvm_configure_filter, 4345e705c121SKalle Valo .config_iface_filter = iwl_mvm_config_iface_filter, 4346e705c121SKalle Valo .bss_info_changed = iwl_mvm_bss_info_changed, 4347e705c121SKalle Valo .hw_scan = iwl_mvm_mac_hw_scan, 4348e705c121SKalle Valo .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 4349e705c121SKalle Valo .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 4350e705c121SKalle Valo .sta_state = iwl_mvm_mac_sta_state, 4351e705c121SKalle Valo .sta_notify = iwl_mvm_mac_sta_notify, 4352e705c121SKalle Valo .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 4353e705c121SKalle Valo .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 4354e705c121SKalle Valo .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 4355e705c121SKalle Valo .sta_rc_update = iwl_mvm_sta_rc_update, 4356e705c121SKalle Valo .conf_tx = iwl_mvm_mac_conf_tx, 4357e705c121SKalle Valo .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 4358e705c121SKalle Valo .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 4359e705c121SKalle Valo .flush = iwl_mvm_mac_flush, 4360e705c121SKalle Valo .sched_scan_start = iwl_mvm_mac_sched_scan_start, 4361e705c121SKalle Valo .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 4362e705c121SKalle Valo .set_key = iwl_mvm_mac_set_key, 4363e705c121SKalle Valo .update_tkip_key = iwl_mvm_mac_update_tkip_key, 4364e705c121SKalle Valo .remain_on_channel = iwl_mvm_roc, 4365e705c121SKalle Valo .cancel_remain_on_channel = iwl_mvm_cancel_roc, 4366e705c121SKalle Valo .add_chanctx = iwl_mvm_add_chanctx, 4367e705c121SKalle Valo .remove_chanctx = iwl_mvm_remove_chanctx, 4368e705c121SKalle Valo .change_chanctx = iwl_mvm_change_chanctx, 4369e705c121SKalle Valo .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 4370e705c121SKalle Valo .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 4371e705c121SKalle Valo .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 4372e705c121SKalle Valo 4373e705c121SKalle Valo .start_ap = iwl_mvm_start_ap_ibss, 4374e705c121SKalle Valo .stop_ap = iwl_mvm_stop_ap_ibss, 4375e705c121SKalle Valo .join_ibss = iwl_mvm_start_ap_ibss, 4376e705c121SKalle Valo .leave_ibss = iwl_mvm_stop_ap_ibss, 4377e705c121SKalle Valo 43782f0282dbSJohannes Berg .tx_last_beacon = iwl_mvm_tx_last_beacon, 43792f0282dbSJohannes Berg 4380e705c121SKalle Valo .set_tim = iwl_mvm_set_tim, 4381e705c121SKalle Valo 4382e705c121SKalle Valo .channel_switch = iwl_mvm_channel_switch, 4383e705c121SKalle Valo .pre_channel_switch = iwl_mvm_pre_channel_switch, 4384e705c121SKalle Valo .post_channel_switch = iwl_mvm_post_channel_switch, 4385e705c121SKalle Valo 4386e705c121SKalle Valo .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 4387e705c121SKalle Valo .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 4388e705c121SKalle Valo .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 4389e705c121SKalle Valo 4390e705c121SKalle Valo .event_callback = iwl_mvm_mac_event_callback, 4391e705c121SKalle Valo 43920636b938SSara Sharon .sync_rx_queues = iwl_mvm_sync_rx_queues, 43930636b938SSara Sharon 4394e705c121SKalle Valo CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 4395e705c121SKalle Valo 4396e705c121SKalle Valo #ifdef CONFIG_PM_SLEEP 4397e705c121SKalle Valo /* look at d3.c */ 4398e705c121SKalle Valo .suspend = iwl_mvm_suspend, 4399e705c121SKalle Valo .resume = iwl_mvm_resume, 4400e705c121SKalle Valo .set_wakeup = iwl_mvm_set_wakeup, 4401e705c121SKalle Valo .set_rekey_data = iwl_mvm_set_rekey_data, 4402e705c121SKalle Valo #if IS_ENABLED(CONFIG_IPV6) 4403e705c121SKalle Valo .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 4404e705c121SKalle Valo #endif 4405e705c121SKalle Valo .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 4406e705c121SKalle Valo #endif 4407e705c121SKalle Valo .get_survey = iwl_mvm_mac_get_survey, 4408e705c121SKalle Valo .sta_statistics = iwl_mvm_mac_sta_statistics, 4409e705c121SKalle Valo }; 4410