1e705c121SKalle Valo /****************************************************************************** 2e705c121SKalle Valo * 3e705c121SKalle Valo * This file is provided under a dual BSD/GPLv2 license. When using or 4e705c121SKalle Valo * redistributing this file, you may do so under either license. 5e705c121SKalle Valo * 6e705c121SKalle Valo * GPL LICENSE SUMMARY 7e705c121SKalle Valo * 8e705c121SKalle Valo * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 9e705c121SKalle Valo * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH 10f92659a1SSara Sharon * Copyright(c) 2016 Intel Deutschland GmbH 11e705c121SKalle Valo * 12e705c121SKalle Valo * This program is free software; you can redistribute it and/or modify 13e705c121SKalle Valo * it under the terms of version 2 of the GNU General Public License as 14e705c121SKalle Valo * published by the Free Software Foundation. 15e705c121SKalle Valo * 16e705c121SKalle Valo * This program is distributed in the hope that it will be useful, but 17e705c121SKalle Valo * WITHOUT ANY WARRANTY; without even the implied warranty of 18e705c121SKalle Valo * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19e705c121SKalle Valo * General Public License for more details. 20e705c121SKalle Valo * 21e705c121SKalle Valo * You should have received a copy of the GNU General Public License 22e705c121SKalle Valo * along with this program; if not, write to the Free Software 23e705c121SKalle Valo * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 24e705c121SKalle Valo * USA 25e705c121SKalle Valo * 26e705c121SKalle Valo * The full GNU General Public License is included in this distribution 27e705c121SKalle Valo * in the file called COPYING. 28e705c121SKalle Valo * 29e705c121SKalle Valo * Contact Information: 30cb2f8277SEmmanuel Grumbach * Intel Linux Wireless <linuxwifi@intel.com> 31e705c121SKalle Valo * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 32e705c121SKalle Valo * 33e705c121SKalle Valo * BSD LICENSE 34e705c121SKalle Valo * 35e705c121SKalle Valo * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 36e705c121SKalle Valo * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH 37e705c121SKalle Valo * All rights reserved. 38e705c121SKalle Valo * 39e705c121SKalle Valo * Redistribution and use in source and binary forms, with or without 40e705c121SKalle Valo * modification, are permitted provided that the following conditions 41e705c121SKalle Valo * are met: 42e705c121SKalle Valo * 43e705c121SKalle Valo * * Redistributions of source code must retain the above copyright 44e705c121SKalle Valo * notice, this list of conditions and the following disclaimer. 45e705c121SKalle Valo * * Redistributions in binary form must reproduce the above copyright 46e705c121SKalle Valo * notice, this list of conditions and the following disclaimer in 47e705c121SKalle Valo * the documentation and/or other materials provided with the 48e705c121SKalle Valo * distribution. 49e705c121SKalle Valo * * Neither the name Intel Corporation nor the names of its 50e705c121SKalle Valo * contributors may be used to endorse or promote products derived 51e705c121SKalle Valo * from this software without specific prior written permission. 52e705c121SKalle Valo * 53e705c121SKalle Valo * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 54e705c121SKalle Valo * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 55e705c121SKalle Valo * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 56e705c121SKalle Valo * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 57e705c121SKalle Valo * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 58e705c121SKalle Valo * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 59e705c121SKalle Valo * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 60e705c121SKalle Valo * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 61e705c121SKalle Valo * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 62e705c121SKalle Valo * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 63e705c121SKalle Valo * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 64e705c121SKalle Valo * 65e705c121SKalle Valo *****************************************************************************/ 66e705c121SKalle Valo #include <linux/kernel.h> 67e705c121SKalle Valo #include <linux/slab.h> 68e705c121SKalle Valo #include <linux/skbuff.h> 69e705c121SKalle Valo #include <linux/netdevice.h> 70e705c121SKalle Valo #include <linux/etherdevice.h> 71e705c121SKalle Valo #include <linux/ip.h> 72e705c121SKalle Valo #include <linux/if_arp.h> 732f89a5d7SGolan Ben-Ami #include <linux/time.h> 74e705c121SKalle Valo #include <net/mac80211.h> 75e705c121SKalle Valo #include <net/ieee80211_radiotap.h> 76e705c121SKalle Valo #include <net/tcp.h> 77e705c121SKalle Valo 78e705c121SKalle Valo #include "iwl-op-mode.h" 79e705c121SKalle Valo #include "iwl-io.h" 80e705c121SKalle Valo #include "mvm.h" 81e705c121SKalle Valo #include "sta.h" 82e705c121SKalle Valo #include "time-event.h" 83e705c121SKalle Valo #include "iwl-eeprom-parse.h" 84e705c121SKalle Valo #include "iwl-phy-db.h" 85e705c121SKalle Valo #include "testmode.h" 86e705c121SKalle Valo #include "iwl-fw-error-dump.h" 87e705c121SKalle Valo #include "iwl-prph.h" 88e705c121SKalle Valo #include "iwl-nvm-parse.h" 892f89a5d7SGolan Ben-Ami #include "fw-dbg.h" 90e705c121SKalle Valo 91e705c121SKalle Valo static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 92e705c121SKalle Valo { 93e705c121SKalle Valo .max = 1, 94e705c121SKalle Valo .types = BIT(NL80211_IFTYPE_STATION), 95e705c121SKalle Valo }, 96e705c121SKalle Valo { 97e705c121SKalle Valo .max = 1, 98e705c121SKalle Valo .types = BIT(NL80211_IFTYPE_AP) | 99e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_CLIENT) | 100e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_GO), 101e705c121SKalle Valo }, 102e705c121SKalle Valo { 103e705c121SKalle Valo .max = 1, 104e705c121SKalle Valo .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 105e705c121SKalle Valo }, 106e705c121SKalle Valo }; 107e705c121SKalle Valo 108e705c121SKalle Valo static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 109e705c121SKalle Valo { 110e705c121SKalle Valo .num_different_channels = 2, 111e705c121SKalle Valo .max_interfaces = 3, 112e705c121SKalle Valo .limits = iwl_mvm_limits, 113e705c121SKalle Valo .n_limits = ARRAY_SIZE(iwl_mvm_limits), 114e705c121SKalle Valo }, 115e705c121SKalle Valo }; 116e705c121SKalle Valo 117e705c121SKalle Valo #ifdef CONFIG_PM_SLEEP 118e705c121SKalle Valo static const struct nl80211_wowlan_tcp_data_token_feature 119e705c121SKalle Valo iwl_mvm_wowlan_tcp_token_feature = { 120e705c121SKalle Valo .min_len = 0, 121e705c121SKalle Valo .max_len = 255, 122e705c121SKalle Valo .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS, 123e705c121SKalle Valo }; 124e705c121SKalle Valo 125e705c121SKalle Valo static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = { 126e705c121SKalle Valo .tok = &iwl_mvm_wowlan_tcp_token_feature, 127e705c121SKalle Valo .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN - 128e705c121SKalle Valo sizeof(struct ethhdr) - 129e705c121SKalle Valo sizeof(struct iphdr) - 130e705c121SKalle Valo sizeof(struct tcphdr), 131e705c121SKalle Valo .data_interval_max = 65535, /* __le16 in API */ 132e705c121SKalle Valo .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN - 133e705c121SKalle Valo sizeof(struct ethhdr) - 134e705c121SKalle Valo sizeof(struct iphdr) - 135e705c121SKalle Valo sizeof(struct tcphdr), 136e705c121SKalle Valo .seq = true, 137e705c121SKalle Valo }; 138e705c121SKalle Valo #endif 139e705c121SKalle Valo 140e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 141e705c121SKalle Valo /* 142e705c121SKalle Valo * Use the reserved field to indicate magic values. 143e705c121SKalle Valo * these values will only be used internally by the driver, 144e705c121SKalle Valo * and won't make it to the fw (reserved will be 0). 145e705c121SKalle Valo * BC_FILTER_MAGIC_IP - configure the val of this attribute to 146e705c121SKalle Valo * be the vif's ip address. in case there is not a single 147e705c121SKalle Valo * ip address (0, or more than 1), this attribute will 148e705c121SKalle Valo * be skipped. 149e705c121SKalle Valo * BC_FILTER_MAGIC_MAC - set the val of this attribute to 150e705c121SKalle Valo * the LSB bytes of the vif's mac address 151e705c121SKalle Valo */ 152e705c121SKalle Valo enum { 153e705c121SKalle Valo BC_FILTER_MAGIC_NONE = 0, 154e705c121SKalle Valo BC_FILTER_MAGIC_IP, 155e705c121SKalle Valo BC_FILTER_MAGIC_MAC, 156e705c121SKalle Valo }; 157e705c121SKalle Valo 158e705c121SKalle Valo static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { 159e705c121SKalle Valo { 160e705c121SKalle Valo /* arp */ 161e705c121SKalle Valo .discard = 0, 162e705c121SKalle Valo .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, 163e705c121SKalle Valo .attrs = { 164e705c121SKalle Valo { 165e705c121SKalle Valo /* frame type - arp, hw type - ethernet */ 166e705c121SKalle Valo .offset_type = 167e705c121SKalle Valo BCAST_FILTER_OFFSET_PAYLOAD_START, 168e705c121SKalle Valo .offset = sizeof(rfc1042_header), 169e705c121SKalle Valo .val = cpu_to_be32(0x08060001), 170e705c121SKalle Valo .mask = cpu_to_be32(0xffffffff), 171e705c121SKalle Valo }, 172e705c121SKalle Valo { 173e705c121SKalle Valo /* arp dest ip */ 174e705c121SKalle Valo .offset_type = 175e705c121SKalle Valo BCAST_FILTER_OFFSET_PAYLOAD_START, 176e705c121SKalle Valo .offset = sizeof(rfc1042_header) + 2 + 177e705c121SKalle Valo sizeof(struct arphdr) + 178e705c121SKalle Valo ETH_ALEN + sizeof(__be32) + 179e705c121SKalle Valo ETH_ALEN, 180e705c121SKalle Valo .mask = cpu_to_be32(0xffffffff), 181e705c121SKalle Valo /* mark it as special field */ 182e705c121SKalle Valo .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), 183e705c121SKalle Valo }, 184e705c121SKalle Valo }, 185e705c121SKalle Valo }, 186e705c121SKalle Valo { 187e705c121SKalle Valo /* dhcp offer bcast */ 188e705c121SKalle Valo .discard = 0, 189e705c121SKalle Valo .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, 190e705c121SKalle Valo .attrs = { 191e705c121SKalle Valo { 192e705c121SKalle Valo /* udp dest port - 68 (bootp client)*/ 193e705c121SKalle Valo .offset_type = BCAST_FILTER_OFFSET_IP_END, 194e705c121SKalle Valo .offset = offsetof(struct udphdr, dest), 195e705c121SKalle Valo .val = cpu_to_be32(0x00440000), 196e705c121SKalle Valo .mask = cpu_to_be32(0xffff0000), 197e705c121SKalle Valo }, 198e705c121SKalle Valo { 199e705c121SKalle Valo /* dhcp - lsb bytes of client hw address */ 200e705c121SKalle Valo .offset_type = BCAST_FILTER_OFFSET_IP_END, 201e705c121SKalle Valo .offset = 38, 202e705c121SKalle Valo .mask = cpu_to_be32(0xffffffff), 203e705c121SKalle Valo /* mark it as special field */ 204e705c121SKalle Valo .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), 205e705c121SKalle Valo }, 206e705c121SKalle Valo }, 207e705c121SKalle Valo }, 208e705c121SKalle Valo /* last filter must be empty */ 209e705c121SKalle Valo {}, 210e705c121SKalle Valo }; 211e705c121SKalle Valo #endif 212e705c121SKalle Valo 213e705c121SKalle Valo void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) 214e705c121SKalle Valo { 215e705c121SKalle Valo if (!iwl_mvm_is_d0i3_supported(mvm)) 216e705c121SKalle Valo return; 217e705c121SKalle Valo 218e705c121SKalle Valo IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type); 219e705c121SKalle Valo spin_lock_bh(&mvm->refs_lock); 220e705c121SKalle Valo mvm->refs[ref_type]++; 221e705c121SKalle Valo spin_unlock_bh(&mvm->refs_lock); 222e705c121SKalle Valo iwl_trans_ref(mvm->trans); 223e705c121SKalle Valo } 224e705c121SKalle Valo 225e705c121SKalle Valo void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) 226e705c121SKalle Valo { 227e705c121SKalle Valo if (!iwl_mvm_is_d0i3_supported(mvm)) 228e705c121SKalle Valo return; 229e705c121SKalle Valo 230e705c121SKalle Valo IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type); 231e705c121SKalle Valo spin_lock_bh(&mvm->refs_lock); 232e705c121SKalle Valo WARN_ON(!mvm->refs[ref_type]--); 233e705c121SKalle Valo spin_unlock_bh(&mvm->refs_lock); 234e705c121SKalle Valo iwl_trans_unref(mvm->trans); 235e705c121SKalle Valo } 236e705c121SKalle Valo 237e705c121SKalle Valo static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm, 238e705c121SKalle Valo enum iwl_mvm_ref_type except_ref) 239e705c121SKalle Valo { 240e705c121SKalle Valo int i, j; 241e705c121SKalle Valo 242e705c121SKalle Valo if (!iwl_mvm_is_d0i3_supported(mvm)) 243e705c121SKalle Valo return; 244e705c121SKalle Valo 245e705c121SKalle Valo spin_lock_bh(&mvm->refs_lock); 246e705c121SKalle Valo for (i = 0; i < IWL_MVM_REF_COUNT; i++) { 247e705c121SKalle Valo if (except_ref == i || !mvm->refs[i]) 248e705c121SKalle Valo continue; 249e705c121SKalle Valo 250e705c121SKalle Valo IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n", 251e705c121SKalle Valo i, mvm->refs[i]); 252e705c121SKalle Valo for (j = 0; j < mvm->refs[i]; j++) 253e705c121SKalle Valo iwl_trans_unref(mvm->trans); 254e705c121SKalle Valo mvm->refs[i] = 0; 255e705c121SKalle Valo } 256e705c121SKalle Valo spin_unlock_bh(&mvm->refs_lock); 257e705c121SKalle Valo } 258e705c121SKalle Valo 259e705c121SKalle Valo bool iwl_mvm_ref_taken(struct iwl_mvm *mvm) 260e705c121SKalle Valo { 261e705c121SKalle Valo int i; 262e705c121SKalle Valo bool taken = false; 263e705c121SKalle Valo 264e705c121SKalle Valo if (!iwl_mvm_is_d0i3_supported(mvm)) 265e705c121SKalle Valo return true; 266e705c121SKalle Valo 267e705c121SKalle Valo spin_lock_bh(&mvm->refs_lock); 268e705c121SKalle Valo for (i = 0; i < IWL_MVM_REF_COUNT; i++) { 269e705c121SKalle Valo if (mvm->refs[i]) { 270e705c121SKalle Valo taken = true; 271e705c121SKalle Valo break; 272e705c121SKalle Valo } 273e705c121SKalle Valo } 274e705c121SKalle Valo spin_unlock_bh(&mvm->refs_lock); 275e705c121SKalle Valo 276e705c121SKalle Valo return taken; 277e705c121SKalle Valo } 278e705c121SKalle Valo 279e705c121SKalle Valo int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) 280e705c121SKalle Valo { 281e705c121SKalle Valo iwl_mvm_ref(mvm, ref_type); 282e705c121SKalle Valo 283e705c121SKalle Valo if (!wait_event_timeout(mvm->d0i3_exit_waitq, 284e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status), 285e705c121SKalle Valo HZ)) { 286e705c121SKalle Valo WARN_ON_ONCE(1); 287e705c121SKalle Valo iwl_mvm_unref(mvm, ref_type); 288e705c121SKalle Valo return -EIO; 289e705c121SKalle Valo } 290e705c121SKalle Valo 291e705c121SKalle Valo return 0; 292e705c121SKalle Valo } 293e705c121SKalle Valo 294e705c121SKalle Valo static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 295e705c121SKalle Valo { 296e705c121SKalle Valo int i; 297e705c121SKalle Valo 298e705c121SKalle Valo memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 299e705c121SKalle Valo for (i = 0; i < NUM_PHY_CTX; i++) { 300e705c121SKalle Valo mvm->phy_ctxts[i].id = i; 301e705c121SKalle Valo mvm->phy_ctxts[i].ref = 0; 302e705c121SKalle Valo } 303e705c121SKalle Valo } 304e705c121SKalle Valo 305e705c121SKalle Valo struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 306e705c121SKalle Valo const char *alpha2, 307e705c121SKalle Valo enum iwl_mcc_source src_id, 308e705c121SKalle Valo bool *changed) 309e705c121SKalle Valo { 310e705c121SKalle Valo struct ieee80211_regdomain *regd = NULL; 311e705c121SKalle Valo struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 312e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 313e705c121SKalle Valo struct iwl_mcc_update_resp *resp; 314e705c121SKalle Valo 315e705c121SKalle Valo IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 316e705c121SKalle Valo 317e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 318e705c121SKalle Valo 319e705c121SKalle Valo resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 320e705c121SKalle Valo if (IS_ERR_OR_NULL(resp)) { 321e705c121SKalle Valo IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 322e705c121SKalle Valo PTR_ERR_OR_ZERO(resp)); 323e705c121SKalle Valo goto out; 324e705c121SKalle Valo } 325e705c121SKalle Valo 326e705c121SKalle Valo if (changed) 327e705c121SKalle Valo *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE); 328e705c121SKalle Valo 329e705c121SKalle Valo regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 330e705c121SKalle Valo __le32_to_cpu(resp->n_channels), 331e705c121SKalle Valo resp->channels, 332e705c121SKalle Valo __le16_to_cpu(resp->mcc)); 333e705c121SKalle Valo /* Store the return source id */ 334e705c121SKalle Valo src_id = resp->source_id; 335e705c121SKalle Valo kfree(resp); 336e705c121SKalle Valo if (IS_ERR_OR_NULL(regd)) { 337e705c121SKalle Valo IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 338e705c121SKalle Valo PTR_ERR_OR_ZERO(regd)); 339e705c121SKalle Valo goto out; 340e705c121SKalle Valo } 341e705c121SKalle Valo 342e705c121SKalle Valo IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 343e705c121SKalle Valo regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 344e705c121SKalle Valo mvm->lar_regdom_set = true; 345e705c121SKalle Valo mvm->mcc_src = src_id; 346e705c121SKalle Valo 347e705c121SKalle Valo out: 348e705c121SKalle Valo return regd; 349e705c121SKalle Valo } 350e705c121SKalle Valo 351e705c121SKalle Valo void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 352e705c121SKalle Valo { 353e705c121SKalle Valo bool changed; 354e705c121SKalle Valo struct ieee80211_regdomain *regd; 355e705c121SKalle Valo 356e705c121SKalle Valo if (!iwl_mvm_is_lar_supported(mvm)) 357e705c121SKalle Valo return; 358e705c121SKalle Valo 359e705c121SKalle Valo regd = iwl_mvm_get_current_regdomain(mvm, &changed); 360e705c121SKalle Valo if (!IS_ERR_OR_NULL(regd)) { 361e705c121SKalle Valo /* only update the regulatory core if changed */ 362e705c121SKalle Valo if (changed) 363e705c121SKalle Valo regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 364e705c121SKalle Valo 365e705c121SKalle Valo kfree(regd); 366e705c121SKalle Valo } 367e705c121SKalle Valo } 368e705c121SKalle Valo 369e705c121SKalle Valo struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 370e705c121SKalle Valo bool *changed) 371e705c121SKalle Valo { 372e705c121SKalle Valo return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 373e705c121SKalle Valo iwl_mvm_is_wifi_mcc_supported(mvm) ? 374e705c121SKalle Valo MCC_SOURCE_GET_CURRENT : 375e705c121SKalle Valo MCC_SOURCE_OLD_FW, changed); 376e705c121SKalle Valo } 377e705c121SKalle Valo 378e705c121SKalle Valo int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) 379e705c121SKalle Valo { 380e705c121SKalle Valo enum iwl_mcc_source used_src; 381e705c121SKalle Valo struct ieee80211_regdomain *regd; 382e705c121SKalle Valo int ret; 383e705c121SKalle Valo bool changed; 384e705c121SKalle Valo const struct ieee80211_regdomain *r = 385e705c121SKalle Valo rtnl_dereference(mvm->hw->wiphy->regd); 386e705c121SKalle Valo 387e705c121SKalle Valo if (!r) 388e705c121SKalle Valo return -ENOENT; 389e705c121SKalle Valo 390e705c121SKalle Valo /* save the last source in case we overwrite it below */ 391e705c121SKalle Valo used_src = mvm->mcc_src; 392e705c121SKalle Valo if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 393e705c121SKalle Valo /* Notify the firmware we support wifi location updates */ 394e705c121SKalle Valo regd = iwl_mvm_get_current_regdomain(mvm, NULL); 395e705c121SKalle Valo if (!IS_ERR_OR_NULL(regd)) 396e705c121SKalle Valo kfree(regd); 397e705c121SKalle Valo } 398e705c121SKalle Valo 399e705c121SKalle Valo /* Now set our last stored MCC and source */ 400e705c121SKalle Valo regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 401e705c121SKalle Valo &changed); 402e705c121SKalle Valo if (IS_ERR_OR_NULL(regd)) 403e705c121SKalle Valo return -EIO; 404e705c121SKalle Valo 405e705c121SKalle Valo /* update cfg80211 if the regdomain was changed */ 406e705c121SKalle Valo if (changed) 407e705c121SKalle Valo ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd); 408e705c121SKalle Valo else 409e705c121SKalle Valo ret = 0; 410e705c121SKalle Valo 411e705c121SKalle Valo kfree(regd); 412e705c121SKalle Valo return ret; 413e705c121SKalle Valo } 414e705c121SKalle Valo 415e705c121SKalle Valo int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 416e705c121SKalle Valo { 417e705c121SKalle Valo struct ieee80211_hw *hw = mvm->hw; 418e705c121SKalle Valo int num_mac, ret, i; 419e705c121SKalle Valo static const u32 mvm_ciphers[] = { 420e705c121SKalle Valo WLAN_CIPHER_SUITE_WEP40, 421e705c121SKalle Valo WLAN_CIPHER_SUITE_WEP104, 422e705c121SKalle Valo WLAN_CIPHER_SUITE_TKIP, 423e705c121SKalle Valo WLAN_CIPHER_SUITE_CCMP, 424e705c121SKalle Valo }; 425e705c121SKalle Valo 426e705c121SKalle Valo /* Tell mac80211 our characteristics */ 427e705c121SKalle Valo ieee80211_hw_set(hw, SIGNAL_DBM); 428e705c121SKalle Valo ieee80211_hw_set(hw, SPECTRUM_MGMT); 429e705c121SKalle Valo ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 430e705c121SKalle Valo ieee80211_hw_set(hw, QUEUE_CONTROL); 431e705c121SKalle Valo ieee80211_hw_set(hw, WANT_MONITOR_VIF); 432e705c121SKalle Valo ieee80211_hw_set(hw, SUPPORTS_PS); 433e705c121SKalle Valo ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 434e705c121SKalle Valo ieee80211_hw_set(hw, AMPDU_AGGREGATION); 435e705c121SKalle Valo ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 436e705c121SKalle Valo ieee80211_hw_set(hw, CONNECTION_MONITOR); 437e705c121SKalle Valo ieee80211_hw_set(hw, CHANCTX_STA_CSA); 438e705c121SKalle Valo ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 439e705c121SKalle Valo ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 440909ddf0bSJohannes Berg ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 44130433d3bSJohannes Berg ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 442e705c121SKalle Valo 4432d7cf549SJohannes Berg if (mvm->trans->max_skb_frags) 4442d7cf549SJohannes Berg hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 4452d7cf549SJohannes Berg 446e705c121SKalle Valo hw->queues = mvm->first_agg_queue; 447e705c121SKalle Valo hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 448e705c121SKalle Valo hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 449e705c121SKalle Valo IEEE80211_RADIOTAP_MCS_HAVE_STBC; 450e705c121SKalle Valo hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 451e705c121SKalle Valo IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 452e705c121SKalle Valo hw->rate_control_algorithm = "iwl-mvm-rs"; 453e705c121SKalle Valo hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 454e705c121SKalle Valo hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 455e705c121SKalle Valo 456e705c121SKalle Valo BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 2); 457e705c121SKalle Valo memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 458e705c121SKalle Valo hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 459e705c121SKalle Valo hw->wiphy->cipher_suites = mvm->ciphers; 460e705c121SKalle Valo 461e705c121SKalle Valo /* 462e705c121SKalle Valo * Enable 11w if advertised by firmware and software crypto 463e705c121SKalle Valo * is not enabled (as the firmware will interpret some mgmt 464e705c121SKalle Valo * packets, so enabling it with software crypto isn't safe) 465e705c121SKalle Valo */ 466e705c121SKalle Valo if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && 467e705c121SKalle Valo !iwlwifi_mod_params.sw_crypto) { 468e705c121SKalle Valo ieee80211_hw_set(hw, MFP_CAPABLE); 469e705c121SKalle Valo mvm->ciphers[hw->wiphy->n_cipher_suites] = 470e705c121SKalle Valo WLAN_CIPHER_SUITE_AES_CMAC; 471e705c121SKalle Valo hw->wiphy->n_cipher_suites++; 472e705c121SKalle Valo } 473e705c121SKalle Valo 474e705c121SKalle Valo /* currently FW API supports only one optional cipher scheme */ 475e705c121SKalle Valo if (mvm->fw->cs[0].cipher) { 476e705c121SKalle Valo mvm->hw->n_cipher_schemes = 1; 477e705c121SKalle Valo mvm->hw->cipher_schemes = &mvm->fw->cs[0]; 478e705c121SKalle Valo mvm->ciphers[hw->wiphy->n_cipher_suites] = 479e705c121SKalle Valo mvm->fw->cs[0].cipher; 480e705c121SKalle Valo hw->wiphy->n_cipher_suites++; 481e705c121SKalle Valo } 482e705c121SKalle Valo 483e705c121SKalle Valo ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 484e705c121SKalle Valo hw->wiphy->features |= 485e705c121SKalle Valo NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 486e705c121SKalle Valo NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 487e705c121SKalle Valo NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 488e705c121SKalle Valo 489e705c121SKalle Valo hw->sta_data_size = sizeof(struct iwl_mvm_sta); 490e705c121SKalle Valo hw->vif_data_size = sizeof(struct iwl_mvm_vif); 491e705c121SKalle Valo hw->chanctx_data_size = sizeof(u16); 492e705c121SKalle Valo 493e705c121SKalle Valo hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 494e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_CLIENT) | 495e705c121SKalle Valo BIT(NL80211_IFTYPE_AP) | 496e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_GO) | 497e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_DEVICE) | 498e705c121SKalle Valo BIT(NL80211_IFTYPE_ADHOC); 499e705c121SKalle Valo 500e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 501e705c121SKalle Valo hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 502e705c121SKalle Valo if (iwl_mvm_is_lar_supported(mvm)) 503e705c121SKalle Valo hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 504e705c121SKalle Valo else 505e705c121SKalle Valo hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 506e705c121SKalle Valo REGULATORY_DISABLE_BEACON_HINTS; 507e705c121SKalle Valo 508e705c121SKalle Valo if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD) 509e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 510e705c121SKalle Valo 511e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 512e705c121SKalle Valo 513e705c121SKalle Valo hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 514e705c121SKalle Valo hw->wiphy->n_iface_combinations = 515e705c121SKalle Valo ARRAY_SIZE(iwl_mvm_iface_combinations); 516e705c121SKalle Valo 517e705c121SKalle Valo hw->wiphy->max_remain_on_channel_duration = 10000; 518e705c121SKalle Valo hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 519e705c121SKalle Valo /* we can compensate an offset of up to 3 channels = 15 MHz */ 520e705c121SKalle Valo hw->wiphy->max_adj_channel_rssi_comp = 3 * 5; 521e705c121SKalle Valo 522e705c121SKalle Valo /* Extract MAC address */ 523e705c121SKalle Valo memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 524e705c121SKalle Valo hw->wiphy->addresses = mvm->addresses; 525e705c121SKalle Valo hw->wiphy->n_addresses = 1; 526e705c121SKalle Valo 527e705c121SKalle Valo /* Extract additional MAC addresses if available */ 528e705c121SKalle Valo num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 529e705c121SKalle Valo min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 530e705c121SKalle Valo 531e705c121SKalle Valo for (i = 1; i < num_mac; i++) { 532e705c121SKalle Valo memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 533e705c121SKalle Valo ETH_ALEN); 534e705c121SKalle Valo mvm->addresses[i].addr[5]++; 535e705c121SKalle Valo hw->wiphy->n_addresses++; 536e705c121SKalle Valo } 537e705c121SKalle Valo 538e705c121SKalle Valo iwl_mvm_reset_phy_ctxts(mvm); 539e705c121SKalle Valo 540e705c121SKalle Valo hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 541e705c121SKalle Valo 542e705c121SKalle Valo hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 543e705c121SKalle Valo 544e705c121SKalle Valo BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 545e705c121SKalle Valo BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 546e705c121SKalle Valo IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 547e705c121SKalle Valo 548e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 549e705c121SKalle Valo mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 550e705c121SKalle Valo else 551e705c121SKalle Valo mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 552e705c121SKalle Valo 553e705c121SKalle Valo if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) 554e705c121SKalle Valo hw->wiphy->bands[IEEE80211_BAND_2GHZ] = 555e705c121SKalle Valo &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ]; 556e705c121SKalle Valo if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) { 557e705c121SKalle Valo hw->wiphy->bands[IEEE80211_BAND_5GHZ] = 558e705c121SKalle Valo &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ]; 559e705c121SKalle Valo 560e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 561e705c121SKalle Valo IWL_UCODE_TLV_CAPA_BEAMFORMER) && 562e705c121SKalle Valo fw_has_api(&mvm->fw->ucode_capa, 563e705c121SKalle Valo IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 564e705c121SKalle Valo hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |= 565e705c121SKalle Valo IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 566e705c121SKalle Valo } 567e705c121SKalle Valo 568e705c121SKalle Valo hw->wiphy->hw_version = mvm->trans->hw_id; 569e705c121SKalle Valo 570e705c121SKalle Valo if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 571e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 572e705c121SKalle Valo else 573e705c121SKalle Valo hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 574e705c121SKalle Valo 575e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; 576e705c121SKalle Valo hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 577e705c121SKalle Valo hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; 578e705c121SKalle Valo /* we create the 802.11 header and zero length SSID IE. */ 579e705c121SKalle Valo hw->wiphy->max_sched_scan_ie_len = 580e705c121SKalle Valo SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 581e705c121SKalle Valo hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 582e705c121SKalle Valo hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 583e705c121SKalle Valo 584e705c121SKalle Valo /* 585e705c121SKalle Valo * the firmware uses u8 for num of iterations, but 0xff is saved for 586e705c121SKalle Valo * infinite loop, so the maximum number of iterations is actually 254. 587e705c121SKalle Valo */ 588e705c121SKalle Valo hw->wiphy->max_sched_scan_plan_iterations = 254; 589e705c121SKalle Valo 590e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 591e705c121SKalle Valo NL80211_FEATURE_LOW_PRIORITY_SCAN | 592e705c121SKalle Valo NL80211_FEATURE_P2P_GO_OPPPS | 593e705c121SKalle Valo NL80211_FEATURE_DYNAMIC_SMPS | 594e705c121SKalle Valo NL80211_FEATURE_STATIC_SMPS | 595e705c121SKalle Valo NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 596e705c121SKalle Valo 597e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 598e705c121SKalle Valo IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 599e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 600e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 601e705c121SKalle Valo IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 602e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_QUIET; 603e705c121SKalle Valo 604e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 605e705c121SKalle Valo IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 606e705c121SKalle Valo hw->wiphy->features |= 607e705c121SKalle Valo NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 608e705c121SKalle Valo 609e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 610e705c121SKalle Valo IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 611e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 612e705c121SKalle Valo 613e705c121SKalle Valo mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 614e705c121SKalle Valo 615e705c121SKalle Valo #ifdef CONFIG_PM_SLEEP 616e705c121SKalle Valo if (iwl_mvm_is_d0i3_supported(mvm) && 617e705c121SKalle Valo device_can_wakeup(mvm->trans->dev)) { 618e705c121SKalle Valo mvm->wowlan.flags = WIPHY_WOWLAN_ANY; 619e705c121SKalle Valo hw->wiphy->wowlan = &mvm->wowlan; 620e705c121SKalle Valo } 621e705c121SKalle Valo 622e705c121SKalle Valo if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && 623e705c121SKalle Valo mvm->trans->ops->d3_suspend && 624e705c121SKalle Valo mvm->trans->ops->d3_resume && 625e705c121SKalle Valo device_can_wakeup(mvm->trans->dev)) { 626e705c121SKalle Valo mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 627e705c121SKalle Valo WIPHY_WOWLAN_DISCONNECT | 628e705c121SKalle Valo WIPHY_WOWLAN_EAP_IDENTITY_REQ | 629e705c121SKalle Valo WIPHY_WOWLAN_RFKILL_RELEASE | 630e705c121SKalle Valo WIPHY_WOWLAN_NET_DETECT; 631e705c121SKalle Valo if (!iwlwifi_mod_params.sw_crypto) 632e705c121SKalle Valo mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 633e705c121SKalle Valo WIPHY_WOWLAN_GTK_REKEY_FAILURE | 634e705c121SKalle Valo WIPHY_WOWLAN_4WAY_HANDSHAKE; 635e705c121SKalle Valo 636e705c121SKalle Valo mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 637e705c121SKalle Valo mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 638e705c121SKalle Valo mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 639e705c121SKalle Valo mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES; 640e705c121SKalle Valo mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; 641e705c121SKalle Valo hw->wiphy->wowlan = &mvm->wowlan; 642e705c121SKalle Valo } 643e705c121SKalle Valo #endif 644e705c121SKalle Valo 645e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 646e705c121SKalle Valo /* assign default bcast filtering configuration */ 647e705c121SKalle Valo mvm->bcast_filters = iwl_mvm_default_bcast_filters; 648e705c121SKalle Valo #endif 649e705c121SKalle Valo 650e705c121SKalle Valo ret = iwl_mvm_leds_init(mvm); 651e705c121SKalle Valo if (ret) 652e705c121SKalle Valo return ret; 653e705c121SKalle Valo 654e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 655e705c121SKalle Valo IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 656e705c121SKalle Valo IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 657e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 658e705c121SKalle Valo ieee80211_hw_set(hw, TDLS_WIDER_BW); 659e705c121SKalle Valo } 660e705c121SKalle Valo 661e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 662e705c121SKalle Valo IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 663e705c121SKalle Valo IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 664e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 665e705c121SKalle Valo } 666e705c121SKalle Valo 667e705c121SKalle Valo hw->netdev_features |= mvm->cfg->features; 668e705c121SKalle Valo if (!iwl_mvm_is_csum_supported(mvm)) 669e705c121SKalle Valo hw->netdev_features &= ~NETIF_F_RXCSUM; 670e705c121SKalle Valo 67141837ca9SEmmanuel Grumbach if (IWL_MVM_SW_TX_CSUM_OFFLOAD) 672a3713f8bSEmmanuel Grumbach hw->netdev_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | 673a3713f8bSEmmanuel Grumbach NETIF_F_TSO | NETIF_F_TSO6; 67441837ca9SEmmanuel Grumbach 675e705c121SKalle Valo ret = ieee80211_register_hw(mvm->hw); 676e705c121SKalle Valo if (ret) 677e705c121SKalle Valo iwl_mvm_leds_exit(mvm); 678e705c121SKalle Valo 679e705c121SKalle Valo return ret; 680e705c121SKalle Valo } 681e705c121SKalle Valo 682e705c121SKalle Valo static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm, 683e705c121SKalle Valo struct ieee80211_sta *sta, 684e705c121SKalle Valo struct sk_buff *skb) 685e705c121SKalle Valo { 686e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 687e705c121SKalle Valo bool defer = false; 688e705c121SKalle Valo 689e705c121SKalle Valo /* 690e705c121SKalle Valo * double check the IN_D0I3 flag both before and after 691e705c121SKalle Valo * taking the spinlock, in order to prevent taking 692e705c121SKalle Valo * the spinlock when not needed. 693e705c121SKalle Valo */ 694e705c121SKalle Valo if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))) 695e705c121SKalle Valo return false; 696e705c121SKalle Valo 697e705c121SKalle Valo spin_lock(&mvm->d0i3_tx_lock); 698e705c121SKalle Valo /* 699e705c121SKalle Valo * testing the flag again ensures the skb dequeue 700e705c121SKalle Valo * loop (on d0i3 exit) hasn't run yet. 701e705c121SKalle Valo */ 702e705c121SKalle Valo if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) 703e705c121SKalle Valo goto out; 704e705c121SKalle Valo 705e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_mac80211(sta); 706e705c121SKalle Valo if (mvmsta->sta_id == IWL_MVM_STATION_COUNT || 707e705c121SKalle Valo mvmsta->sta_id != mvm->d0i3_ap_sta_id) 708e705c121SKalle Valo goto out; 709e705c121SKalle Valo 710e705c121SKalle Valo __skb_queue_tail(&mvm->d0i3_tx, skb); 711e705c121SKalle Valo ieee80211_stop_queues(mvm->hw); 712e705c121SKalle Valo 713e705c121SKalle Valo /* trigger wakeup */ 714e705c121SKalle Valo iwl_mvm_ref(mvm, IWL_MVM_REF_TX); 715e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_TX); 716e705c121SKalle Valo 717e705c121SKalle Valo defer = true; 718e705c121SKalle Valo out: 719e705c121SKalle Valo spin_unlock(&mvm->d0i3_tx_lock); 720e705c121SKalle Valo return defer; 721e705c121SKalle Valo } 722e705c121SKalle Valo 723e705c121SKalle Valo static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 724e705c121SKalle Valo struct ieee80211_tx_control *control, 725e705c121SKalle Valo struct sk_buff *skb) 726e705c121SKalle Valo { 727e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 728e705c121SKalle Valo struct ieee80211_sta *sta = control->sta; 729e705c121SKalle Valo struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 730e705c121SKalle Valo struct ieee80211_hdr *hdr = (void *)skb->data; 731e705c121SKalle Valo 732e705c121SKalle Valo if (iwl_mvm_is_radio_killed(mvm)) { 733e705c121SKalle Valo IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 734e705c121SKalle Valo goto drop; 735e705c121SKalle Valo } 736e705c121SKalle Valo 737e705c121SKalle Valo if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && 738e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 739e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 740e705c121SKalle Valo goto drop; 741e705c121SKalle Valo 742e705c121SKalle Valo /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */ 743e705c121SKalle Valo if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER && 744e705c121SKalle Valo ieee80211_is_mgmt(hdr->frame_control) && 745e705c121SKalle Valo !ieee80211_is_deauth(hdr->frame_control) && 746e705c121SKalle Valo !ieee80211_is_disassoc(hdr->frame_control) && 747e705c121SKalle Valo !ieee80211_is_action(hdr->frame_control))) 748e705c121SKalle Valo sta = NULL; 749e705c121SKalle Valo 750e705c121SKalle Valo if (sta) { 751e705c121SKalle Valo if (iwl_mvm_defer_tx(mvm, sta, skb)) 752e705c121SKalle Valo return; 753e705c121SKalle Valo if (iwl_mvm_tx_skb(mvm, skb, sta)) 754e705c121SKalle Valo goto drop; 755e705c121SKalle Valo return; 756e705c121SKalle Valo } 757e705c121SKalle Valo 758e705c121SKalle Valo if (iwl_mvm_tx_skb_non_sta(mvm, skb)) 759e705c121SKalle Valo goto drop; 760e705c121SKalle Valo return; 761e705c121SKalle Valo drop: 762e705c121SKalle Valo ieee80211_free_txskb(hw, skb); 763e705c121SKalle Valo } 764e705c121SKalle Valo 765e705c121SKalle Valo static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) 766e705c121SKalle Valo { 767e705c121SKalle Valo if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) 768e705c121SKalle Valo return false; 769e705c121SKalle Valo return true; 770e705c121SKalle Valo } 771e705c121SKalle Valo 772e705c121SKalle Valo static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) 773e705c121SKalle Valo { 774e705c121SKalle Valo if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) 775e705c121SKalle Valo return false; 776e705c121SKalle Valo if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) 777e705c121SKalle Valo return true; 778e705c121SKalle Valo 779e705c121SKalle Valo /* enabled by default */ 780e705c121SKalle Valo return true; 781e705c121SKalle Valo } 782e705c121SKalle Valo 783e705c121SKalle Valo #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 784e705c121SKalle Valo do { \ 785e705c121SKalle Valo if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 786e705c121SKalle Valo break; \ 787e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \ 788e705c121SKalle Valo } while (0) 789e705c121SKalle Valo 790e705c121SKalle Valo static void 791e705c121SKalle Valo iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 792e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 793e705c121SKalle Valo enum ieee80211_ampdu_mlme_action action) 794e705c121SKalle Valo { 795e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 796e705c121SKalle Valo struct iwl_fw_dbg_trigger_ba *ba_trig; 797e705c121SKalle Valo 798e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) 799e705c121SKalle Valo return; 800e705c121SKalle Valo 801e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); 802e705c121SKalle Valo ba_trig = (void *)trig->data; 803e705c121SKalle Valo 804e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 805e705c121SKalle Valo return; 806e705c121SKalle Valo 807e705c121SKalle Valo switch (action) { 808e705c121SKalle Valo case IEEE80211_AMPDU_TX_OPERATIONAL: { 809e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 810e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 811e705c121SKalle Valo 812e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 813e705c121SKalle Valo "TX AGG START: MAC %pM tid %d ssn %d\n", 814e705c121SKalle Valo sta->addr, tid, tid_data->ssn); 815e705c121SKalle Valo break; 816e705c121SKalle Valo } 817e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_CONT: 818e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 819e705c121SKalle Valo "TX AGG STOP: MAC %pM tid %d\n", 820e705c121SKalle Valo sta->addr, tid); 821e705c121SKalle Valo break; 822e705c121SKalle Valo case IEEE80211_AMPDU_RX_START: 823e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 824e705c121SKalle Valo "RX AGG START: MAC %pM tid %d ssn %d\n", 825e705c121SKalle Valo sta->addr, tid, rx_ba_ssn); 826e705c121SKalle Valo break; 827e705c121SKalle Valo case IEEE80211_AMPDU_RX_STOP: 828e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 829e705c121SKalle Valo "RX AGG STOP: MAC %pM tid %d\n", 830e705c121SKalle Valo sta->addr, tid); 831e705c121SKalle Valo break; 832e705c121SKalle Valo default: 833e705c121SKalle Valo break; 834e705c121SKalle Valo } 835e705c121SKalle Valo } 836e705c121SKalle Valo 837e705c121SKalle Valo static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 838e705c121SKalle Valo struct ieee80211_vif *vif, 83950ea05efSSara Sharon struct ieee80211_ampdu_params *params) 840e705c121SKalle Valo { 841e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 842e705c121SKalle Valo int ret; 843e705c121SKalle Valo bool tx_agg_ref = false; 84450ea05efSSara Sharon struct ieee80211_sta *sta = params->sta; 84550ea05efSSara Sharon enum ieee80211_ampdu_mlme_action action = params->action; 84650ea05efSSara Sharon u16 tid = params->tid; 84750ea05efSSara Sharon u16 *ssn = ¶ms->ssn; 84850ea05efSSara Sharon u8 buf_size = params->buf_size; 849bb81bb68SEmmanuel Grumbach bool amsdu = params->amsdu; 850e705c121SKalle Valo 851e705c121SKalle Valo IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 852e705c121SKalle Valo sta->addr, tid, action); 853e705c121SKalle Valo 854e705c121SKalle Valo if (!(mvm->nvm_data->sku_cap_11n_enable)) 855e705c121SKalle Valo return -EACCES; 856e705c121SKalle Valo 857e705c121SKalle Valo /* return from D0i3 before starting a new Tx aggregation */ 858e705c121SKalle Valo switch (action) { 859e705c121SKalle Valo case IEEE80211_AMPDU_TX_START: 860e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_CONT: 861e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH: 862e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 863e705c121SKalle Valo case IEEE80211_AMPDU_TX_OPERATIONAL: 864e705c121SKalle Valo /* 865e705c121SKalle Valo * for tx start, wait synchronously until D0i3 exit to 866e705c121SKalle Valo * get the correct sequence number for the tid. 867e705c121SKalle Valo * additionally, some other ampdu actions use direct 868e705c121SKalle Valo * target access, which is not handled automatically 869e705c121SKalle Valo * by the trans layer (unlike commands), so wait for 870e705c121SKalle Valo * d0i3 exit in these cases as well. 871e705c121SKalle Valo */ 872e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG); 873e705c121SKalle Valo if (ret) 874e705c121SKalle Valo return ret; 875e705c121SKalle Valo 876e705c121SKalle Valo tx_agg_ref = true; 877e705c121SKalle Valo break; 878e705c121SKalle Valo default: 879e705c121SKalle Valo break; 880e705c121SKalle Valo } 881e705c121SKalle Valo 882e705c121SKalle Valo mutex_lock(&mvm->mutex); 883e705c121SKalle Valo 884e705c121SKalle Valo switch (action) { 885e705c121SKalle Valo case IEEE80211_AMPDU_RX_START: 886e705c121SKalle Valo if (!iwl_enable_rx_ampdu(mvm->cfg)) { 887e705c121SKalle Valo ret = -EINVAL; 888e705c121SKalle Valo break; 889e705c121SKalle Valo } 890854c5705SSara Sharon ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size); 891e705c121SKalle Valo break; 892e705c121SKalle Valo case IEEE80211_AMPDU_RX_STOP: 893854c5705SSara Sharon ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size); 894e705c121SKalle Valo break; 895e705c121SKalle Valo case IEEE80211_AMPDU_TX_START: 896e705c121SKalle Valo if (!iwl_enable_tx_ampdu(mvm->cfg)) { 897e705c121SKalle Valo ret = -EINVAL; 898e705c121SKalle Valo break; 899e705c121SKalle Valo } 900e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 901e705c121SKalle Valo break; 902e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_CONT: 903e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 904e705c121SKalle Valo break; 905e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH: 906e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 907e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 908e705c121SKalle Valo break; 909e705c121SKalle Valo case IEEE80211_AMPDU_TX_OPERATIONAL: 910bb81bb68SEmmanuel Grumbach ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 911bb81bb68SEmmanuel Grumbach buf_size, amsdu); 912e705c121SKalle Valo break; 913e705c121SKalle Valo default: 914e705c121SKalle Valo WARN_ON_ONCE(1); 915e705c121SKalle Valo ret = -EINVAL; 916e705c121SKalle Valo break; 917e705c121SKalle Valo } 918e705c121SKalle Valo 919e705c121SKalle Valo if (!ret) { 920e705c121SKalle Valo u16 rx_ba_ssn = 0; 921e705c121SKalle Valo 922e705c121SKalle Valo if (action == IEEE80211_AMPDU_RX_START) 923e705c121SKalle Valo rx_ba_ssn = *ssn; 924e705c121SKalle Valo 925e705c121SKalle Valo iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 926e705c121SKalle Valo rx_ba_ssn, action); 927e705c121SKalle Valo } 928e705c121SKalle Valo mutex_unlock(&mvm->mutex); 929e705c121SKalle Valo 930e705c121SKalle Valo /* 931e705c121SKalle Valo * If the tid is marked as started, we won't use it for offloaded 932e705c121SKalle Valo * traffic on the next D0i3 entry. It's safe to unref. 933e705c121SKalle Valo */ 934e705c121SKalle Valo if (tx_agg_ref) 935e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); 936e705c121SKalle Valo 937e705c121SKalle Valo return ret; 938e705c121SKalle Valo } 939e705c121SKalle Valo 940e705c121SKalle Valo static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 941e705c121SKalle Valo struct ieee80211_vif *vif) 942e705c121SKalle Valo { 943e705c121SKalle Valo struct iwl_mvm *mvm = data; 944e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 945e705c121SKalle Valo 946e705c121SKalle Valo mvmvif->uploaded = false; 947e705c121SKalle Valo mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; 948e705c121SKalle Valo 949e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 950e705c121SKalle Valo iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 951e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 952e705c121SKalle Valo 953e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 954e705c121SKalle Valo memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 955e705c121SKalle Valo } 956e705c121SKalle Valo 957e705c121SKalle Valo static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 958e705c121SKalle Valo { 959e705c121SKalle Valo /* clear the D3 reconfig, we only need it to avoid dumping a 960e705c121SKalle Valo * firmware coredump on reconfiguration, we shouldn't do that 961e705c121SKalle Valo * on D3->D0 transition 962e705c121SKalle Valo */ 963e705c121SKalle Valo if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) { 964e705c121SKalle Valo mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert; 965e705c121SKalle Valo iwl_mvm_fw_error_dump(mvm); 966e705c121SKalle Valo } 967e705c121SKalle Valo 968e705c121SKalle Valo /* cleanup all stale references (scan, roc), but keep the 969e705c121SKalle Valo * ucode_down ref until reconfig is complete 970e705c121SKalle Valo */ 971e705c121SKalle Valo iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN); 972e705c121SKalle Valo 973fcb6b92aSChaya Rachel Ivgi iwl_mvm_stop_device(mvm); 974e705c121SKalle Valo 975e705c121SKalle Valo mvm->scan_status = 0; 976e705c121SKalle Valo mvm->ps_disabled = false; 977e705c121SKalle Valo mvm->calibrating = false; 978e705c121SKalle Valo 979e705c121SKalle Valo /* just in case one was running */ 980305d236eSEliad Peller iwl_mvm_cleanup_roc_te(mvm); 981e705c121SKalle Valo ieee80211_remain_on_channel_expired(mvm->hw); 982e705c121SKalle Valo 983e705c121SKalle Valo /* 984e705c121SKalle Valo * cleanup all interfaces, even inactive ones, as some might have 985e705c121SKalle Valo * gone down during the HW restart 986e705c121SKalle Valo */ 987e705c121SKalle Valo ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 988e705c121SKalle Valo 989e705c121SKalle Valo mvm->p2p_device_vif = NULL; 990e705c121SKalle Valo mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; 991e705c121SKalle Valo 992e705c121SKalle Valo iwl_mvm_reset_phy_ctxts(mvm); 9939c3deeb5SLuca Coelho memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 994e705c121SKalle Valo memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); 995e705c121SKalle Valo memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained)); 996e705c121SKalle Valo memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 997e705c121SKalle Valo memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old)); 998e705c121SKalle Valo memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 999e705c121SKalle Valo memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old)); 1000e705c121SKalle Valo memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk)); 1001e705c121SKalle Valo memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk)); 1002e705c121SKalle Valo 1003e705c121SKalle Valo ieee80211_wake_queues(mvm->hw); 1004e705c121SKalle Valo 1005e705c121SKalle Valo /* clear any stale d0i3 state */ 1006e705c121SKalle Valo clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); 1007e705c121SKalle Valo 1008e705c121SKalle Valo mvm->vif_count = 0; 1009e705c121SKalle Valo mvm->rx_ba_sessions = 0; 1010e705c121SKalle Valo mvm->fw_dbg_conf = FW_DBG_INVALID; 1011e705c121SKalle Valo 1012e705c121SKalle Valo /* keep statistics ticking */ 1013e705c121SKalle Valo iwl_mvm_accu_radio_stats(mvm); 1014e705c121SKalle Valo } 1015e705c121SKalle Valo 1016e705c121SKalle Valo int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1017e705c121SKalle Valo { 1018e705c121SKalle Valo int ret; 1019e705c121SKalle Valo 1020e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1021e705c121SKalle Valo 1022a42b2af3SLuca Coelho if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1023e705c121SKalle Valo /* Clean up some internal and mac80211 state on restart */ 1024e705c121SKalle Valo iwl_mvm_restart_cleanup(mvm); 1025a42b2af3SLuca Coelho } else { 1026a42b2af3SLuca Coelho /* Hold the reference to prevent runtime suspend while 1027a42b2af3SLuca Coelho * the start procedure runs. It's a bit confusing 1028a42b2af3SLuca Coelho * that the UCODE_DOWN reference is taken, but it just 1029a42b2af3SLuca Coelho * means "UCODE is not UP yet". ( TODO: rename this 1030a42b2af3SLuca Coelho * reference). 1031a42b2af3SLuca Coelho */ 1032a42b2af3SLuca Coelho iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); 1033a42b2af3SLuca Coelho } 1034e705c121SKalle Valo ret = iwl_mvm_up(mvm); 1035e705c121SKalle Valo 1036e705c121SKalle Valo if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1037e705c121SKalle Valo /* Something went wrong - we need to finish some cleanup 1038e705c121SKalle Valo * that normally iwl_mvm_mac_restart_complete() below 1039e705c121SKalle Valo * would do. 1040e705c121SKalle Valo */ 1041e705c121SKalle Valo clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1042e705c121SKalle Valo iwl_mvm_d0i3_enable_tx(mvm, NULL); 1043e705c121SKalle Valo } 1044e705c121SKalle Valo 1045e705c121SKalle Valo return ret; 1046e705c121SKalle Valo } 1047e705c121SKalle Valo 1048e705c121SKalle Valo static int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1049e705c121SKalle Valo { 1050e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1051e705c121SKalle Valo int ret; 1052e705c121SKalle Valo 1053e705c121SKalle Valo /* Some hw restart cleanups must not hold the mutex */ 1054e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1055e705c121SKalle Valo /* 1056e705c121SKalle Valo * Make sure we are out of d0i3. This is needed 1057e705c121SKalle Valo * to make sure the reference accounting is correct 1058e705c121SKalle Valo * (and there is no stale d0i3_exit_work). 1059e705c121SKalle Valo */ 1060e705c121SKalle Valo wait_event_timeout(mvm->d0i3_exit_waitq, 1061e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_IN_D0I3, 1062e705c121SKalle Valo &mvm->status), 1063e705c121SKalle Valo HZ); 1064e705c121SKalle Valo } 1065e705c121SKalle Valo 1066e705c121SKalle Valo mutex_lock(&mvm->mutex); 1067e705c121SKalle Valo ret = __iwl_mvm_mac_start(mvm); 1068e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1069e705c121SKalle Valo 1070e705c121SKalle Valo return ret; 1071e705c121SKalle Valo } 1072e705c121SKalle Valo 1073e705c121SKalle Valo static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1074e705c121SKalle Valo { 1075e705c121SKalle Valo int ret; 1076e705c121SKalle Valo 1077e705c121SKalle Valo mutex_lock(&mvm->mutex); 1078e705c121SKalle Valo 1079e705c121SKalle Valo clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1080e705c121SKalle Valo iwl_mvm_d0i3_enable_tx(mvm, NULL); 1081e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, true, NULL); 1082e705c121SKalle Valo if (ret) 1083e705c121SKalle Valo IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1084e705c121SKalle Valo ret); 1085e705c121SKalle Valo 1086e705c121SKalle Valo /* allow transport/FW low power modes */ 1087e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN); 1088e705c121SKalle Valo 1089e705c121SKalle Valo /* 1090e705c121SKalle Valo * If we have TDLS peers, remove them. We don't know the last seqno/PN 1091e705c121SKalle Valo * of packets the FW sent out, so we must reconnect. 1092e705c121SKalle Valo */ 1093e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 1094e705c121SKalle Valo 1095e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1096e705c121SKalle Valo } 1097e705c121SKalle Valo 1098e705c121SKalle Valo static void iwl_mvm_resume_complete(struct iwl_mvm *mvm) 1099e705c121SKalle Valo { 1100b7282643SLuca Coelho if (iwl_mvm_is_d0i3_supported(mvm) && 1101b7282643SLuca Coelho iwl_mvm_enter_d0i3_on_suspend(mvm)) 1102b7282643SLuca Coelho WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq, 1103e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_IN_D0I3, 1104e705c121SKalle Valo &mvm->status), 1105b7282643SLuca Coelho HZ), 1106b7282643SLuca Coelho "D0i3 exit on resume timed out\n"); 1107e705c121SKalle Valo } 1108e705c121SKalle Valo 1109e705c121SKalle Valo static void 1110e705c121SKalle Valo iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1111e705c121SKalle Valo enum ieee80211_reconfig_type reconfig_type) 1112e705c121SKalle Valo { 1113e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1114e705c121SKalle Valo 1115e705c121SKalle Valo switch (reconfig_type) { 1116e705c121SKalle Valo case IEEE80211_RECONFIG_TYPE_RESTART: 1117e705c121SKalle Valo iwl_mvm_restart_complete(mvm); 1118e705c121SKalle Valo break; 1119e705c121SKalle Valo case IEEE80211_RECONFIG_TYPE_SUSPEND: 1120e705c121SKalle Valo iwl_mvm_resume_complete(mvm); 1121e705c121SKalle Valo break; 1122e705c121SKalle Valo } 1123e705c121SKalle Valo } 1124e705c121SKalle Valo 1125e705c121SKalle Valo void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1126e705c121SKalle Valo { 1127e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1128e705c121SKalle Valo 1129e705c121SKalle Valo /* firmware counters are obviously reset now, but we shouldn't 1130e705c121SKalle Valo * partially track so also clear the fw_reset_accu counters. 1131e705c121SKalle Valo */ 1132e705c121SKalle Valo memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1133e705c121SKalle Valo 1134e705c121SKalle Valo /* async_handlers_wk is now blocked */ 1135e705c121SKalle Valo 1136e705c121SKalle Valo /* 1137e705c121SKalle Valo * The work item could be running or queued if the 1138e705c121SKalle Valo * ROC time event stops just as we get here. 1139e705c121SKalle Valo */ 1140e705c121SKalle Valo flush_work(&mvm->roc_done_wk); 1141e705c121SKalle Valo 1142fcb6b92aSChaya Rachel Ivgi iwl_mvm_stop_device(mvm); 1143e705c121SKalle Valo 1144e705c121SKalle Valo iwl_mvm_async_handlers_purge(mvm); 1145e705c121SKalle Valo /* async_handlers_list is empty and will stay empty: HW is stopped */ 1146e705c121SKalle Valo 1147e705c121SKalle Valo /* the fw is stopped, the aux sta is dead: clean up driver state */ 1148e705c121SKalle Valo iwl_mvm_del_aux_sta(mvm); 1149e705c121SKalle Valo 1150e705c121SKalle Valo /* 1151e705c121SKalle Valo * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete() 1152e705c121SKalle Valo * won't be called in this case). 1153e705c121SKalle Valo * But make sure to cleanup interfaces that have gone down before/during 1154e705c121SKalle Valo * HW restart was requested. 1155e705c121SKalle Valo */ 1156e705c121SKalle Valo if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1157e705c121SKalle Valo ieee80211_iterate_interfaces(mvm->hw, 0, 1158e705c121SKalle Valo iwl_mvm_cleanup_iterator, mvm); 1159e705c121SKalle Valo 1160e705c121SKalle Valo /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1161e705c121SKalle Valo * make sure there's nothing left there and warn if any is found. 1162e705c121SKalle Valo */ 1163e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1164e705c121SKalle Valo int i; 1165e705c121SKalle Valo 1166e705c121SKalle Valo for (i = 0; i < mvm->max_scans; i++) { 1167e705c121SKalle Valo if (WARN_ONCE(mvm->scan_uid_status[i], 1168e705c121SKalle Valo "UMAC scan UID %d status was not cleaned\n", 1169e705c121SKalle Valo i)) 1170e705c121SKalle Valo mvm->scan_uid_status[i] = 0; 1171e705c121SKalle Valo } 1172e705c121SKalle Valo } 1173e705c121SKalle Valo } 1174e705c121SKalle Valo 1175e705c121SKalle Valo static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1176e705c121SKalle Valo { 1177e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1178e705c121SKalle Valo 1179e705c121SKalle Valo flush_work(&mvm->d0i3_exit_work); 1180e705c121SKalle Valo flush_work(&mvm->async_handlers_wk); 1181e705c121SKalle Valo cancel_delayed_work_sync(&mvm->fw_dump_wk); 1182e705c121SKalle Valo iwl_mvm_free_fw_dump_desc(mvm); 1183e705c121SKalle Valo 1184e705c121SKalle Valo mutex_lock(&mvm->mutex); 1185e705c121SKalle Valo __iwl_mvm_mac_stop(mvm); 1186e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1187e705c121SKalle Valo 1188e705c121SKalle Valo /* 1189e705c121SKalle Valo * The worker might have been waiting for the mutex, let it run and 1190e705c121SKalle Valo * discover that its list is now empty. 1191e705c121SKalle Valo */ 1192e705c121SKalle Valo cancel_work_sync(&mvm->async_handlers_wk); 1193e705c121SKalle Valo } 1194e705c121SKalle Valo 1195e705c121SKalle Valo static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1196e705c121SKalle Valo { 1197e705c121SKalle Valo u16 i; 1198e705c121SKalle Valo 1199e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1200e705c121SKalle Valo 1201e705c121SKalle Valo for (i = 0; i < NUM_PHY_CTX; i++) 1202e705c121SKalle Valo if (!mvm->phy_ctxts[i].ref) 1203e705c121SKalle Valo return &mvm->phy_ctxts[i]; 1204e705c121SKalle Valo 1205e705c121SKalle Valo IWL_ERR(mvm, "No available PHY context\n"); 1206e705c121SKalle Valo return NULL; 1207e705c121SKalle Valo } 1208e705c121SKalle Valo 1209e705c121SKalle Valo static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1210e705c121SKalle Valo s16 tx_power) 1211e705c121SKalle Valo { 1212e705c121SKalle Valo struct iwl_dev_tx_power_cmd cmd = { 1213e705c121SKalle Valo .v2.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1214e705c121SKalle Valo .v2.mac_context_id = 1215e705c121SKalle Valo cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1216e705c121SKalle Valo .v2.pwr_restriction = cpu_to_le16(8 * tx_power), 1217e705c121SKalle Valo }; 1218e705c121SKalle Valo int len = sizeof(cmd); 1219e705c121SKalle Valo 1220e705c121SKalle Valo if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1221e705c121SKalle Valo cmd.v2.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1222e705c121SKalle Valo 1223e705c121SKalle Valo if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_TX_POWER_CHAIN)) 1224e705c121SKalle Valo len = sizeof(cmd.v2); 1225e705c121SKalle Valo 1226e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); 1227e705c121SKalle Valo } 1228e705c121SKalle Valo 1229e705c121SKalle Valo static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1230e705c121SKalle Valo struct ieee80211_vif *vif) 1231e705c121SKalle Valo { 1232e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1233e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1234e705c121SKalle Valo int ret; 1235e705c121SKalle Valo 1236e705c121SKalle Valo mvmvif->mvm = mvm; 1237e705c121SKalle Valo 1238e705c121SKalle Valo /* 1239e705c121SKalle Valo * make sure D0i3 exit is completed, otherwise a target access 1240e705c121SKalle Valo * during tx queue configuration could be done when still in 1241e705c121SKalle Valo * D0i3 state. 1242e705c121SKalle Valo */ 1243e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF); 1244e705c121SKalle Valo if (ret) 1245e705c121SKalle Valo return ret; 1246e705c121SKalle Valo 1247e705c121SKalle Valo /* 1248e705c121SKalle Valo * Not much to do here. The stack will not allow interface 1249e705c121SKalle Valo * types or combinations that we didn't advertise, so we 1250e705c121SKalle Valo * don't really have to check the types. 1251e705c121SKalle Valo */ 1252e705c121SKalle Valo 1253e705c121SKalle Valo mutex_lock(&mvm->mutex); 1254e705c121SKalle Valo 1255e705c121SKalle Valo /* make sure that beacon statistics don't go backwards with FW reset */ 1256e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1257e705c121SKalle Valo mvmvif->beacon_stats.accu_num_beacons += 1258e705c121SKalle Valo mvmvif->beacon_stats.num_beacons; 1259e705c121SKalle Valo 1260e705c121SKalle Valo /* Allocate resources for the MAC context, and add it to the fw */ 1261e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1262e705c121SKalle Valo if (ret) 1263e705c121SKalle Valo goto out_unlock; 1264e705c121SKalle Valo 1265e705c121SKalle Valo /* Counting number of interfaces is needed for legacy PM */ 1266e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1267e705c121SKalle Valo mvm->vif_count++; 1268e705c121SKalle Valo 1269e705c121SKalle Valo /* 1270e705c121SKalle Valo * The AP binding flow can be done only after the beacon 1271e705c121SKalle Valo * template is configured (which happens only in the mac80211 1272e705c121SKalle Valo * start_ap() flow), and adding the broadcast station can happen 1273e705c121SKalle Valo * only after the binding. 1274e705c121SKalle Valo * In addition, since modifying the MAC before adding a bcast 1275e705c121SKalle Valo * station is not allowed by the FW, delay the adding of MAC context to 1276e705c121SKalle Valo * the point where we can also add the bcast station. 1277e705c121SKalle Valo * In short: there's not much we can do at this point, other than 1278e705c121SKalle Valo * allocating resources :) 1279e705c121SKalle Valo */ 1280e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP || 1281e705c121SKalle Valo vif->type == NL80211_IFTYPE_ADHOC) { 1282e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1283e705c121SKalle Valo if (ret) { 1284e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1285e705c121SKalle Valo goto out_release; 1286e705c121SKalle Valo } 1287e705c121SKalle Valo 1288e705c121SKalle Valo iwl_mvm_vif_dbgfs_register(mvm, vif); 1289e705c121SKalle Valo goto out_unlock; 1290e705c121SKalle Valo } 1291e705c121SKalle Valo 1292e705c121SKalle Valo mvmvif->features |= hw->netdev_features; 1293e705c121SKalle Valo 1294e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1295e705c121SKalle Valo if (ret) 1296e705c121SKalle Valo goto out_release; 1297e705c121SKalle Valo 1298e705c121SKalle Valo ret = iwl_mvm_power_update_mac(mvm); 1299e705c121SKalle Valo if (ret) 1300e705c121SKalle Valo goto out_remove_mac; 1301e705c121SKalle Valo 1302e705c121SKalle Valo /* beacon filtering */ 1303e705c121SKalle Valo ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1304e705c121SKalle Valo if (ret) 1305e705c121SKalle Valo goto out_remove_mac; 1306e705c121SKalle Valo 1307e705c121SKalle Valo if (!mvm->bf_allowed_vif && 1308e705c121SKalle Valo vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1309e705c121SKalle Valo mvm->bf_allowed_vif = mvmvif; 1310e705c121SKalle Valo vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1311e705c121SKalle Valo IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1312e705c121SKalle Valo } 1313e705c121SKalle Valo 1314e705c121SKalle Valo /* 1315e705c121SKalle Valo * P2P_DEVICE interface does not have a channel context assigned to it, 1316e705c121SKalle Valo * so a dedicated PHY context is allocated to it and the corresponding 1317e705c121SKalle Valo * MAC context is bound to it at this stage. 1318e705c121SKalle Valo */ 1319e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1320e705c121SKalle Valo 1321e705c121SKalle Valo mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1322e705c121SKalle Valo if (!mvmvif->phy_ctxt) { 1323e705c121SKalle Valo ret = -ENOSPC; 1324e705c121SKalle Valo goto out_free_bf; 1325e705c121SKalle Valo } 1326e705c121SKalle Valo 1327e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 1328e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 1329e705c121SKalle Valo if (ret) 1330e705c121SKalle Valo goto out_unref_phy; 1331e705c121SKalle Valo 1332e705c121SKalle Valo ret = iwl_mvm_add_bcast_sta(mvm, vif); 1333e705c121SKalle Valo if (ret) 1334e705c121SKalle Valo goto out_unbind; 1335e705c121SKalle Valo 1336e705c121SKalle Valo /* Save a pointer to p2p device vif, so it can later be used to 1337e705c121SKalle Valo * update the p2p device MAC when a GO is started/stopped */ 1338e705c121SKalle Valo mvm->p2p_device_vif = vif; 1339e705c121SKalle Valo } 1340e705c121SKalle Valo 1341e705c121SKalle Valo iwl_mvm_vif_dbgfs_register(mvm, vif); 1342e705c121SKalle Valo goto out_unlock; 1343e705c121SKalle Valo 1344e705c121SKalle Valo out_unbind: 1345e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 1346e705c121SKalle Valo out_unref_phy: 1347e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1348e705c121SKalle Valo out_free_bf: 1349e705c121SKalle Valo if (mvm->bf_allowed_vif == mvmvif) { 1350e705c121SKalle Valo mvm->bf_allowed_vif = NULL; 1351e705c121SKalle Valo vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1352e705c121SKalle Valo IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1353e705c121SKalle Valo } 1354e705c121SKalle Valo out_remove_mac: 1355e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 1356e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 1357e705c121SKalle Valo out_release: 1358e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1359e705c121SKalle Valo mvm->vif_count--; 1360e705c121SKalle Valo 1361e705c121SKalle Valo iwl_mvm_mac_ctxt_release(mvm, vif); 1362e705c121SKalle Valo out_unlock: 1363e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1364e705c121SKalle Valo 1365e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF); 1366e705c121SKalle Valo 1367e705c121SKalle Valo return ret; 1368e705c121SKalle Valo } 1369e705c121SKalle Valo 1370e705c121SKalle Valo static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1371e705c121SKalle Valo struct ieee80211_vif *vif) 1372e705c121SKalle Valo { 1373e705c121SKalle Valo u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif); 1374e705c121SKalle Valo 1375e705c121SKalle Valo if (tfd_msk) { 1376e705c121SKalle Valo /* 1377e705c121SKalle Valo * mac80211 first removes all the stations of the vif and 1378e705c121SKalle Valo * then removes the vif. When it removes a station it also 1379e705c121SKalle Valo * flushes the AMPDU session. So by now, all the AMPDU sessions 1380e705c121SKalle Valo * of all the stations of this vif are closed, and the queues 1381e705c121SKalle Valo * of these AMPDU sessions are properly closed. 1382e705c121SKalle Valo * We still need to take care of the shared queues of the vif. 1383e705c121SKalle Valo * Flush them here. 1384e705c121SKalle Valo */ 1385e705c121SKalle Valo mutex_lock(&mvm->mutex); 1386e705c121SKalle Valo iwl_mvm_flush_tx_path(mvm, tfd_msk, 0); 1387e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1388e705c121SKalle Valo 1389e705c121SKalle Valo /* 1390e705c121SKalle Valo * There are transports that buffer a few frames in the host. 1391e705c121SKalle Valo * For these, the flush above isn't enough since while we were 1392e705c121SKalle Valo * flushing, the transport might have sent more frames to the 1393e705c121SKalle Valo * device. To solve this, wait here until the transport is 1394e705c121SKalle Valo * empty. Technically, this could have replaced the flush 1395e705c121SKalle Valo * above, but flush is much faster than draining. So flush 1396e705c121SKalle Valo * first, and drain to make sure we have no frames in the 1397e705c121SKalle Valo * transport anymore. 1398e705c121SKalle Valo * If a station still had frames on the shared queues, it is 1399e705c121SKalle Valo * already marked as draining, so to complete the draining, we 1400e705c121SKalle Valo * just need to wait until the transport is empty. 1401e705c121SKalle Valo */ 1402e705c121SKalle Valo iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk); 1403e705c121SKalle Valo } 1404e705c121SKalle Valo 1405e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1406e705c121SKalle Valo /* 1407e705c121SKalle Valo * Flush the ROC worker which will flush the OFFCHANNEL queue. 1408e705c121SKalle Valo * We assume here that all the packets sent to the OFFCHANNEL 1409e705c121SKalle Valo * queue are sent in ROC session. 1410e705c121SKalle Valo */ 1411e705c121SKalle Valo flush_work(&mvm->roc_done_wk); 1412e705c121SKalle Valo } else { 1413e705c121SKalle Valo /* 1414e705c121SKalle Valo * By now, all the AC queues are empty. The AGG queues are 1415e705c121SKalle Valo * empty too. We already got all the Tx responses for all the 1416e705c121SKalle Valo * packets in the queues. The drain work can have been 1417e705c121SKalle Valo * triggered. Flush it. 1418e705c121SKalle Valo */ 1419e705c121SKalle Valo flush_work(&mvm->sta_drained_wk); 1420e705c121SKalle Valo } 1421e705c121SKalle Valo } 1422e705c121SKalle Valo 1423e705c121SKalle Valo static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1424e705c121SKalle Valo struct ieee80211_vif *vif) 1425e705c121SKalle Valo { 1426e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1427e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1428e705c121SKalle Valo 1429e705c121SKalle Valo iwl_mvm_prepare_mac_removal(mvm, vif); 1430e705c121SKalle Valo 1431e705c121SKalle Valo mutex_lock(&mvm->mutex); 1432e705c121SKalle Valo 1433e705c121SKalle Valo if (mvm->bf_allowed_vif == mvmvif) { 1434e705c121SKalle Valo mvm->bf_allowed_vif = NULL; 1435e705c121SKalle Valo vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1436e705c121SKalle Valo IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1437e705c121SKalle Valo } 1438e705c121SKalle Valo 1439e705c121SKalle Valo iwl_mvm_vif_dbgfs_clean(mvm, vif); 1440e705c121SKalle Valo 1441e705c121SKalle Valo /* 1442e705c121SKalle Valo * For AP/GO interface, the tear down of the resources allocated to the 1443e705c121SKalle Valo * interface is be handled as part of the stop_ap flow. 1444e705c121SKalle Valo */ 1445e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP || 1446e705c121SKalle Valo vif->type == NL80211_IFTYPE_ADHOC) { 1447e705c121SKalle Valo #ifdef CONFIG_NL80211_TESTMODE 1448e705c121SKalle Valo if (vif == mvm->noa_vif) { 1449e705c121SKalle Valo mvm->noa_vif = NULL; 1450e705c121SKalle Valo mvm->noa_duration = 0; 1451e705c121SKalle Valo } 1452e705c121SKalle Valo #endif 1453e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif); 1454e705c121SKalle Valo goto out_release; 1455e705c121SKalle Valo } 1456e705c121SKalle Valo 1457e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1458e705c121SKalle Valo mvm->p2p_device_vif = NULL; 1459e705c121SKalle Valo iwl_mvm_rm_bcast_sta(mvm, vif); 1460e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 1461e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1462e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 1463e705c121SKalle Valo } 1464e705c121SKalle Valo 1465e705c121SKalle Valo if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) 1466e705c121SKalle Valo mvm->vif_count--; 1467e705c121SKalle Valo 1468e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 1469e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 1470e705c121SKalle Valo 1471e705c121SKalle Valo out_release: 1472e705c121SKalle Valo iwl_mvm_mac_ctxt_release(mvm, vif); 1473e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1474e705c121SKalle Valo } 1475e705c121SKalle Valo 1476e705c121SKalle Valo static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) 1477e705c121SKalle Valo { 1478e705c121SKalle Valo return 0; 1479e705c121SKalle Valo } 1480e705c121SKalle Valo 1481e705c121SKalle Valo struct iwl_mvm_mc_iter_data { 1482e705c121SKalle Valo struct iwl_mvm *mvm; 1483e705c121SKalle Valo int port_id; 1484e705c121SKalle Valo }; 1485e705c121SKalle Valo 1486e705c121SKalle Valo static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1487e705c121SKalle Valo struct ieee80211_vif *vif) 1488e705c121SKalle Valo { 1489e705c121SKalle Valo struct iwl_mvm_mc_iter_data *data = _data; 1490e705c121SKalle Valo struct iwl_mvm *mvm = data->mvm; 1491e705c121SKalle Valo struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1492e705c121SKalle Valo int ret, len; 1493e705c121SKalle Valo 1494e705c121SKalle Valo /* if we don't have free ports, mcast frames will be dropped */ 1495e705c121SKalle Valo if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1496e705c121SKalle Valo return; 1497e705c121SKalle Valo 1498e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || 1499e705c121SKalle Valo !vif->bss_conf.assoc) 1500e705c121SKalle Valo return; 1501e705c121SKalle Valo 1502e705c121SKalle Valo cmd->port_id = data->port_id++; 1503e705c121SKalle Valo memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1504e705c121SKalle Valo len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1505e705c121SKalle Valo 1506e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd); 1507e705c121SKalle Valo if (ret) 1508e705c121SKalle Valo IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1509e705c121SKalle Valo } 1510e705c121SKalle Valo 1511e705c121SKalle Valo static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1512e705c121SKalle Valo { 1513e705c121SKalle Valo struct iwl_mvm_mc_iter_data iter_data = { 1514e705c121SKalle Valo .mvm = mvm, 1515e705c121SKalle Valo }; 1516e705c121SKalle Valo 1517e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1518e705c121SKalle Valo 1519e705c121SKalle Valo if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1520e705c121SKalle Valo return; 1521e705c121SKalle Valo 1522e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 1523e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1524e705c121SKalle Valo iwl_mvm_mc_iface_iterator, &iter_data); 1525e705c121SKalle Valo } 1526e705c121SKalle Valo 1527e705c121SKalle Valo static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1528e705c121SKalle Valo struct netdev_hw_addr_list *mc_list) 1529e705c121SKalle Valo { 1530e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1531e705c121SKalle Valo struct iwl_mcast_filter_cmd *cmd; 1532e705c121SKalle Valo struct netdev_hw_addr *addr; 1533e705c121SKalle Valo int addr_count; 1534e705c121SKalle Valo bool pass_all; 1535e705c121SKalle Valo int len; 1536e705c121SKalle Valo 1537e705c121SKalle Valo addr_count = netdev_hw_addr_list_count(mc_list); 1538e705c121SKalle Valo pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1539e705c121SKalle Valo IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1540e705c121SKalle Valo if (pass_all) 1541e705c121SKalle Valo addr_count = 0; 1542e705c121SKalle Valo 1543e705c121SKalle Valo len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1544e705c121SKalle Valo cmd = kzalloc(len, GFP_ATOMIC); 1545e705c121SKalle Valo if (!cmd) 1546e705c121SKalle Valo return 0; 1547e705c121SKalle Valo 1548e705c121SKalle Valo if (pass_all) { 1549e705c121SKalle Valo cmd->pass_all = 1; 1550e705c121SKalle Valo return (u64)(unsigned long)cmd; 1551e705c121SKalle Valo } 1552e705c121SKalle Valo 1553e705c121SKalle Valo netdev_hw_addr_list_for_each(addr, mc_list) { 1554e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1555e705c121SKalle Valo cmd->count, addr->addr); 1556e705c121SKalle Valo memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1557e705c121SKalle Valo addr->addr, ETH_ALEN); 1558e705c121SKalle Valo cmd->count++; 1559e705c121SKalle Valo } 1560e705c121SKalle Valo 1561e705c121SKalle Valo return (u64)(unsigned long)cmd; 1562e705c121SKalle Valo } 1563e705c121SKalle Valo 1564e705c121SKalle Valo static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1565e705c121SKalle Valo unsigned int changed_flags, 1566e705c121SKalle Valo unsigned int *total_flags, 1567e705c121SKalle Valo u64 multicast) 1568e705c121SKalle Valo { 1569e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1570e705c121SKalle Valo struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1571e705c121SKalle Valo 1572e705c121SKalle Valo mutex_lock(&mvm->mutex); 1573e705c121SKalle Valo 1574e705c121SKalle Valo /* replace previous configuration */ 1575e705c121SKalle Valo kfree(mvm->mcast_filter_cmd); 1576e705c121SKalle Valo mvm->mcast_filter_cmd = cmd; 1577e705c121SKalle Valo 1578e705c121SKalle Valo if (!cmd) 1579e705c121SKalle Valo goto out; 1580e705c121SKalle Valo 1581e705c121SKalle Valo iwl_mvm_recalc_multicast(mvm); 1582e705c121SKalle Valo out: 1583e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1584e705c121SKalle Valo *total_flags = 0; 1585e705c121SKalle Valo } 1586e705c121SKalle Valo 1587e705c121SKalle Valo static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1588e705c121SKalle Valo struct ieee80211_vif *vif, 1589e705c121SKalle Valo unsigned int filter_flags, 1590e705c121SKalle Valo unsigned int changed_flags) 1591e705c121SKalle Valo { 1592e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1593e705c121SKalle Valo 1594e705c121SKalle Valo /* We support only filter for probe requests */ 1595e705c121SKalle Valo if (!(changed_flags & FIF_PROBE_REQ)) 1596e705c121SKalle Valo return; 1597e705c121SKalle Valo 1598e705c121SKalle Valo /* Supported only for p2p client interfaces */ 1599e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || 1600e705c121SKalle Valo !vif->p2p) 1601e705c121SKalle Valo return; 1602e705c121SKalle Valo 1603e705c121SKalle Valo mutex_lock(&mvm->mutex); 1604e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1605e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1606e705c121SKalle Valo } 1607e705c121SKalle Valo 1608e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1609e705c121SKalle Valo struct iwl_bcast_iter_data { 1610e705c121SKalle Valo struct iwl_mvm *mvm; 1611e705c121SKalle Valo struct iwl_bcast_filter_cmd *cmd; 1612e705c121SKalle Valo u8 current_filter; 1613e705c121SKalle Valo }; 1614e705c121SKalle Valo 1615e705c121SKalle Valo static void 1616e705c121SKalle Valo iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, 1617e705c121SKalle Valo const struct iwl_fw_bcast_filter *in_filter, 1618e705c121SKalle Valo struct iwl_fw_bcast_filter *out_filter) 1619e705c121SKalle Valo { 1620e705c121SKalle Valo struct iwl_fw_bcast_filter_attr *attr; 1621e705c121SKalle Valo int i; 1622e705c121SKalle Valo 1623e705c121SKalle Valo memcpy(out_filter, in_filter, sizeof(*out_filter)); 1624e705c121SKalle Valo 1625e705c121SKalle Valo for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { 1626e705c121SKalle Valo attr = &out_filter->attrs[i]; 1627e705c121SKalle Valo 1628e705c121SKalle Valo if (!attr->mask) 1629e705c121SKalle Valo break; 1630e705c121SKalle Valo 1631e705c121SKalle Valo switch (attr->reserved1) { 1632e705c121SKalle Valo case cpu_to_le16(BC_FILTER_MAGIC_IP): 1633e705c121SKalle Valo if (vif->bss_conf.arp_addr_cnt != 1) { 1634e705c121SKalle Valo attr->mask = 0; 1635e705c121SKalle Valo continue; 1636e705c121SKalle Valo } 1637e705c121SKalle Valo 1638e705c121SKalle Valo attr->val = vif->bss_conf.arp_addr_list[0]; 1639e705c121SKalle Valo break; 1640e705c121SKalle Valo case cpu_to_le16(BC_FILTER_MAGIC_MAC): 1641e705c121SKalle Valo attr->val = *(__be32 *)&vif->addr[2]; 1642e705c121SKalle Valo break; 1643e705c121SKalle Valo default: 1644e705c121SKalle Valo break; 1645e705c121SKalle Valo } 1646e705c121SKalle Valo attr->reserved1 = 0; 1647e705c121SKalle Valo out_filter->num_attrs++; 1648e705c121SKalle Valo } 1649e705c121SKalle Valo } 1650e705c121SKalle Valo 1651e705c121SKalle Valo static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, 1652e705c121SKalle Valo struct ieee80211_vif *vif) 1653e705c121SKalle Valo { 1654e705c121SKalle Valo struct iwl_bcast_iter_data *data = _data; 1655e705c121SKalle Valo struct iwl_mvm *mvm = data->mvm; 1656e705c121SKalle Valo struct iwl_bcast_filter_cmd *cmd = data->cmd; 1657e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1658e705c121SKalle Valo struct iwl_fw_bcast_mac *bcast_mac; 1659e705c121SKalle Valo int i; 1660e705c121SKalle Valo 1661e705c121SKalle Valo if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) 1662e705c121SKalle Valo return; 1663e705c121SKalle Valo 1664e705c121SKalle Valo bcast_mac = &cmd->macs[mvmvif->id]; 1665e705c121SKalle Valo 1666e705c121SKalle Valo /* 1667e705c121SKalle Valo * enable filtering only for associated stations, but not for P2P 1668e705c121SKalle Valo * Clients 1669e705c121SKalle Valo */ 1670e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || 1671e705c121SKalle Valo !vif->bss_conf.assoc) 1672e705c121SKalle Valo return; 1673e705c121SKalle Valo 1674e705c121SKalle Valo bcast_mac->default_discard = 1; 1675e705c121SKalle Valo 1676e705c121SKalle Valo /* copy all configured filters */ 1677e705c121SKalle Valo for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { 1678e705c121SKalle Valo /* 1679e705c121SKalle Valo * Make sure we don't exceed our filters limit. 1680e705c121SKalle Valo * if there is still a valid filter to be configured, 1681e705c121SKalle Valo * be on the safe side and just allow bcast for this mac. 1682e705c121SKalle Valo */ 1683e705c121SKalle Valo if (WARN_ON_ONCE(data->current_filter >= 1684e705c121SKalle Valo ARRAY_SIZE(cmd->filters))) { 1685e705c121SKalle Valo bcast_mac->default_discard = 0; 1686e705c121SKalle Valo bcast_mac->attached_filters = 0; 1687e705c121SKalle Valo break; 1688e705c121SKalle Valo } 1689e705c121SKalle Valo 1690e705c121SKalle Valo iwl_mvm_set_bcast_filter(vif, 1691e705c121SKalle Valo &mvm->bcast_filters[i], 1692e705c121SKalle Valo &cmd->filters[data->current_filter]); 1693e705c121SKalle Valo 1694e705c121SKalle Valo /* skip current filter if it contains no attributes */ 1695e705c121SKalle Valo if (!cmd->filters[data->current_filter].num_attrs) 1696e705c121SKalle Valo continue; 1697e705c121SKalle Valo 1698e705c121SKalle Valo /* attach the filter to current mac */ 1699e705c121SKalle Valo bcast_mac->attached_filters |= 1700e705c121SKalle Valo cpu_to_le16(BIT(data->current_filter)); 1701e705c121SKalle Valo 1702e705c121SKalle Valo data->current_filter++; 1703e705c121SKalle Valo } 1704e705c121SKalle Valo } 1705e705c121SKalle Valo 1706e705c121SKalle Valo bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, 1707e705c121SKalle Valo struct iwl_bcast_filter_cmd *cmd) 1708e705c121SKalle Valo { 1709e705c121SKalle Valo struct iwl_bcast_iter_data iter_data = { 1710e705c121SKalle Valo .mvm = mvm, 1711e705c121SKalle Valo .cmd = cmd, 1712e705c121SKalle Valo }; 1713e705c121SKalle Valo 1714e705c121SKalle Valo if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) 1715e705c121SKalle Valo return false; 1716e705c121SKalle Valo 1717e705c121SKalle Valo memset(cmd, 0, sizeof(*cmd)); 1718e705c121SKalle Valo cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); 1719e705c121SKalle Valo cmd->max_macs = ARRAY_SIZE(cmd->macs); 1720e705c121SKalle Valo 1721e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_DEBUGFS 1722e705c121SKalle Valo /* use debugfs filters/macs if override is configured */ 1723e705c121SKalle Valo if (mvm->dbgfs_bcast_filtering.override) { 1724e705c121SKalle Valo memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, 1725e705c121SKalle Valo sizeof(cmd->filters)); 1726e705c121SKalle Valo memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, 1727e705c121SKalle Valo sizeof(cmd->macs)); 1728e705c121SKalle Valo return true; 1729e705c121SKalle Valo } 1730e705c121SKalle Valo #endif 1731e705c121SKalle Valo 1732e705c121SKalle Valo /* if no filters are configured, do nothing */ 1733e705c121SKalle Valo if (!mvm->bcast_filters) 1734e705c121SKalle Valo return false; 1735e705c121SKalle Valo 1736e705c121SKalle Valo /* configure and attach these filters for each associated sta vif */ 1737e705c121SKalle Valo ieee80211_iterate_active_interfaces( 1738e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1739e705c121SKalle Valo iwl_mvm_bcast_filter_iterator, &iter_data); 1740e705c121SKalle Valo 1741e705c121SKalle Valo return true; 1742e705c121SKalle Valo } 174334672bb3SEliad Peller 174434672bb3SEliad Peller static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1745e705c121SKalle Valo { 1746e705c121SKalle Valo struct iwl_bcast_filter_cmd cmd; 1747e705c121SKalle Valo 1748e705c121SKalle Valo if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) 1749e705c121SKalle Valo return 0; 1750e705c121SKalle Valo 1751e705c121SKalle Valo if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1752e705c121SKalle Valo return 0; 1753e705c121SKalle Valo 1754e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1755e705c121SKalle Valo sizeof(cmd), &cmd); 1756e705c121SKalle Valo } 1757e705c121SKalle Valo #else 175834672bb3SEliad Peller static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1759e705c121SKalle Valo { 1760e705c121SKalle Valo return 0; 1761e705c121SKalle Valo } 1762e705c121SKalle Valo #endif 1763e705c121SKalle Valo 1764a07a8f37SSara Sharon static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, 1765a07a8f37SSara Sharon struct ieee80211_vif *vif) 1766a07a8f37SSara Sharon { 1767a07a8f37SSara Sharon struct iwl_mu_group_mgmt_cmd cmd = {}; 1768a07a8f37SSara Sharon 1769a07a8f37SSara Sharon memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1770a07a8f37SSara Sharon WLAN_MEMBERSHIP_LEN); 1771a07a8f37SSara Sharon memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1772a07a8f37SSara Sharon WLAN_USER_POSITION_LEN); 1773a07a8f37SSara Sharon 1774a07a8f37SSara Sharon return iwl_mvm_send_cmd_pdu(mvm, 1775a07a8f37SSara Sharon WIDE_ID(DATA_PATH_GROUP, 1776a07a8f37SSara Sharon UPDATE_MU_GROUPS_CMD), 1777a07a8f37SSara Sharon 0, sizeof(cmd), &cmd); 1778a07a8f37SSara Sharon } 1779a07a8f37SSara Sharon 1780f92659a1SSara Sharon static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1781f92659a1SSara Sharon struct ieee80211_vif *vif) 1782f92659a1SSara Sharon { 1783f92659a1SSara Sharon if (vif->mu_mimo_owner) { 1784f92659a1SSara Sharon struct iwl_mu_group_mgmt_notif *notif = _data; 1785f92659a1SSara Sharon 1786f92659a1SSara Sharon /* 1787f92659a1SSara Sharon * MU-MIMO Group Id action frame is little endian. We treat 1788f92659a1SSara Sharon * the data received from firmware as if it came from the 1789f92659a1SSara Sharon * action frame, so no conversion is needed. 1790f92659a1SSara Sharon */ 1791f92659a1SSara Sharon ieee80211_update_mu_groups(vif, 1792f92659a1SSara Sharon (u8 *)¬if->membership_status, 1793f92659a1SSara Sharon (u8 *)¬if->user_position); 1794f92659a1SSara Sharon } 1795f92659a1SSara Sharon } 1796f92659a1SSara Sharon 1797f92659a1SSara Sharon void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1798f92659a1SSara Sharon struct iwl_rx_cmd_buffer *rxb) 1799f92659a1SSara Sharon { 1800f92659a1SSara Sharon struct iwl_rx_packet *pkt = rxb_addr(rxb); 1801f92659a1SSara Sharon struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1802f92659a1SSara Sharon 1803f92659a1SSara Sharon ieee80211_iterate_active_interfaces_atomic( 1804f92659a1SSara Sharon mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1805f92659a1SSara Sharon iwl_mvm_mu_mimo_iface_iterator, notif); 1806f92659a1SSara Sharon } 1807f92659a1SSara Sharon 1808e705c121SKalle Valo static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 1809e705c121SKalle Valo struct ieee80211_vif *vif, 1810e705c121SKalle Valo struct ieee80211_bss_conf *bss_conf, 1811e705c121SKalle Valo u32 changes) 1812e705c121SKalle Valo { 1813e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1814e705c121SKalle Valo int ret; 1815e705c121SKalle Valo 1816e705c121SKalle Valo /* 1817e705c121SKalle Valo * Re-calculate the tsf id, as the master-slave relations depend on the 1818e705c121SKalle Valo * beacon interval, which was not known when the station interface was 1819e705c121SKalle Valo * added. 1820e705c121SKalle Valo */ 1821e705c121SKalle Valo if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) 1822e705c121SKalle Valo iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 1823e705c121SKalle Valo 182403098268SAviya Erenfeld if (changes & BSS_CHANGED_ASSOC && !bss_conf->assoc && 182503098268SAviya Erenfeld mvmvif->lqm_active) 182603098268SAviya Erenfeld iwl_mvm_send_lqm_cmd(vif, LQM_CMD_OPERATION_STOP_MEASUREMENT, 182703098268SAviya Erenfeld 0, 0); 182803098268SAviya Erenfeld 1829e705c121SKalle Valo /* 1830e705c121SKalle Valo * If we're not associated yet, take the (new) BSSID before associating 1831e705c121SKalle Valo * so the firmware knows. If we're already associated, then use the old 1832e705c121SKalle Valo * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 1833e705c121SKalle Valo * branch for disassociation below. 1834e705c121SKalle Valo */ 1835e705c121SKalle Valo if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 1836e705c121SKalle Valo memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 1837e705c121SKalle Valo 1838e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); 1839e705c121SKalle Valo if (ret) 1840e705c121SKalle Valo IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 1841e705c121SKalle Valo 1842e705c121SKalle Valo /* after sending it once, adopt mac80211 data */ 1843e705c121SKalle Valo memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 1844e705c121SKalle Valo mvmvif->associated = bss_conf->assoc; 1845e705c121SKalle Valo 1846e705c121SKalle Valo if (changes & BSS_CHANGED_ASSOC) { 1847e705c121SKalle Valo if (bss_conf->assoc) { 1848e705c121SKalle Valo /* clear statistics to get clean beacon counter */ 1849e705c121SKalle Valo iwl_mvm_request_statistics(mvm, true); 1850e705c121SKalle Valo memset(&mvmvif->beacon_stats, 0, 1851e705c121SKalle Valo sizeof(mvmvif->beacon_stats)); 1852e705c121SKalle Valo 1853e705c121SKalle Valo /* add quota for this interface */ 1854e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, true, NULL); 1855e705c121SKalle Valo if (ret) { 1856e705c121SKalle Valo IWL_ERR(mvm, "failed to update quotas\n"); 1857e705c121SKalle Valo return; 1858e705c121SKalle Valo } 1859e705c121SKalle Valo 1860e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 1861e705c121SKalle Valo &mvm->status)) { 1862e705c121SKalle Valo /* 1863e705c121SKalle Valo * If we're restarting then the firmware will 1864e705c121SKalle Valo * obviously have lost synchronisation with 1865e705c121SKalle Valo * the AP. It will attempt to synchronise by 1866e705c121SKalle Valo * itself, but we can make it more reliable by 1867e705c121SKalle Valo * scheduling a session protection time event. 1868e705c121SKalle Valo * 1869e705c121SKalle Valo * The firmware needs to receive a beacon to 1870e705c121SKalle Valo * catch up with synchronisation, use 110% of 1871e705c121SKalle Valo * the beacon interval. 1872e705c121SKalle Valo * 1873e705c121SKalle Valo * Set a large maximum delay to allow for more 1874e705c121SKalle Valo * than a single interface. 1875e705c121SKalle Valo */ 1876e705c121SKalle Valo u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 1877e705c121SKalle Valo iwl_mvm_protect_session(mvm, vif, dur, dur, 1878e705c121SKalle Valo 5 * dur, false); 1879e705c121SKalle Valo } 1880e705c121SKalle Valo 1881e705c121SKalle Valo iwl_mvm_sf_update(mvm, vif, false); 1882e705c121SKalle Valo iwl_mvm_power_vif_assoc(mvm, vif); 1883e705c121SKalle Valo if (vif->p2p) { 1884e705c121SKalle Valo iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT); 1885e705c121SKalle Valo iwl_mvm_update_smps(mvm, vif, 1886e705c121SKalle Valo IWL_MVM_SMPS_REQ_PROT, 1887e705c121SKalle Valo IEEE80211_SMPS_DYNAMIC); 1888e705c121SKalle Valo } 1889e705c121SKalle Valo } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { 1890e705c121SKalle Valo /* 1891e705c121SKalle Valo * If update fails - SF might be running in associated 1892e705c121SKalle Valo * mode while disassociated - which is forbidden. 1893e705c121SKalle Valo */ 1894e705c121SKalle Valo WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false), 1895e705c121SKalle Valo "Failed to update SF upon disassociation\n"); 1896e705c121SKalle Valo 1897e705c121SKalle Valo /* remove AP station now that the MAC is unassoc */ 1898e705c121SKalle Valo ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id); 1899e705c121SKalle Valo if (ret) 1900e705c121SKalle Valo IWL_ERR(mvm, "failed to remove AP station\n"); 1901e705c121SKalle Valo 1902e705c121SKalle Valo if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) 1903e705c121SKalle Valo mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; 1904e705c121SKalle Valo mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; 1905e705c121SKalle Valo /* remove quota for this interface */ 1906e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, false, NULL); 1907e705c121SKalle Valo if (ret) 1908e705c121SKalle Valo IWL_ERR(mvm, "failed to update quotas\n"); 1909e705c121SKalle Valo 1910e705c121SKalle Valo if (vif->p2p) 1911e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT); 1912e705c121SKalle Valo 1913e705c121SKalle Valo /* this will take the cleared BSSID from bss_conf */ 1914e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1915e705c121SKalle Valo if (ret) 1916e705c121SKalle Valo IWL_ERR(mvm, 1917e705c121SKalle Valo "failed to update MAC %pM (clear after unassoc)\n", 1918e705c121SKalle Valo vif->addr); 1919e705c121SKalle Valo } 1920e705c121SKalle Valo 1921a07a8f37SSara Sharon /* 1922a07a8f37SSara Sharon * The firmware tracks the MU-MIMO group on its own. 1923f92659a1SSara Sharon * However, on HW restart we should restore this data. 1924a07a8f37SSara Sharon */ 1925a07a8f37SSara Sharon if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1926f92659a1SSara Sharon (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) { 1927a07a8f37SSara Sharon ret = iwl_mvm_update_mu_groups(mvm, vif); 1928a07a8f37SSara Sharon if (ret) 1929a07a8f37SSara Sharon IWL_ERR(mvm, 1930a07a8f37SSara Sharon "failed to update VHT MU_MIMO groups\n"); 1931a07a8f37SSara Sharon } 1932a07a8f37SSara Sharon 1933e705c121SKalle Valo iwl_mvm_recalc_multicast(mvm); 193434672bb3SEliad Peller iwl_mvm_configure_bcast_filter(mvm); 1935e705c121SKalle Valo 1936e705c121SKalle Valo /* reset rssi values */ 1937e705c121SKalle Valo mvmvif->bf_data.ave_beacon_signal = 0; 1938e705c121SKalle Valo 1939e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 1940e705c121SKalle Valo iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, 1941e705c121SKalle Valo IEEE80211_SMPS_AUTOMATIC); 1942355346baSAvraham Stern if (fw_has_capa(&mvm->fw->ucode_capa, 1943355346baSAvraham Stern IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 1944355346baSAvraham Stern iwl_mvm_config_scan(mvm); 1945e705c121SKalle Valo } else if (changes & BSS_CHANGED_BEACON_INFO) { 1946e705c121SKalle Valo /* 1947e705c121SKalle Valo * We received a beacon _after_ association so 1948e705c121SKalle Valo * remove the session protection. 1949e705c121SKalle Valo */ 1950e705c121SKalle Valo iwl_mvm_remove_time_event(mvm, mvmvif, 1951e705c121SKalle Valo &mvmvif->time_event_data); 1952e705c121SKalle Valo } 1953e705c121SKalle Valo 1954e705c121SKalle Valo if (changes & BSS_CHANGED_BEACON_INFO) { 1955e705c121SKalle Valo iwl_mvm_sf_update(mvm, vif, false); 1956e705c121SKalle Valo WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 1957e705c121SKalle Valo } 1958e705c121SKalle Valo 1959283115fbSAvri Altman if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 1960283115fbSAvri Altman /* 1961283115fbSAvri Altman * Send power command on every beacon change, 1962283115fbSAvri Altman * because we may have not enabled beacon abort yet. 1963283115fbSAvri Altman */ 1964283115fbSAvri Altman BSS_CHANGED_BEACON_INFO)) { 1965e705c121SKalle Valo ret = iwl_mvm_power_update_mac(mvm); 1966e705c121SKalle Valo if (ret) 1967e705c121SKalle Valo IWL_ERR(mvm, "failed to update power mode\n"); 1968e705c121SKalle Valo } 1969e705c121SKalle Valo 1970e705c121SKalle Valo if (changes & BSS_CHANGED_TXPOWER) { 1971e705c121SKalle Valo IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 1972e705c121SKalle Valo bss_conf->txpower); 1973e705c121SKalle Valo iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 1974e705c121SKalle Valo } 1975e705c121SKalle Valo 1976e705c121SKalle Valo if (changes & BSS_CHANGED_CQM) { 1977e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 1978e705c121SKalle Valo /* reset cqm events tracking */ 1979e705c121SKalle Valo mvmvif->bf_data.last_cqm_event = 0; 1980e705c121SKalle Valo if (mvmvif->bf_data.bf_enabled) { 1981e705c121SKalle Valo ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1982e705c121SKalle Valo if (ret) 1983e705c121SKalle Valo IWL_ERR(mvm, 1984e705c121SKalle Valo "failed to update CQM thresholds\n"); 1985e705c121SKalle Valo } 1986e705c121SKalle Valo } 1987e705c121SKalle Valo 1988e705c121SKalle Valo if (changes & BSS_CHANGED_ARP_FILTER) { 1989e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); 199034672bb3SEliad Peller iwl_mvm_configure_bcast_filter(mvm); 1991e705c121SKalle Valo } 1992e705c121SKalle Valo } 1993e705c121SKalle Valo 1994e705c121SKalle Valo static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 1995e705c121SKalle Valo struct ieee80211_vif *vif) 1996e705c121SKalle Valo { 1997e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1998e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1999e705c121SKalle Valo int ret; 2000e705c121SKalle Valo 2001e705c121SKalle Valo /* 2002e705c121SKalle Valo * iwl_mvm_mac_ctxt_add() might read directly from the device 2003e705c121SKalle Valo * (the system time), so make sure it is available. 2004e705c121SKalle Valo */ 2005e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP); 2006e705c121SKalle Valo if (ret) 2007e705c121SKalle Valo return ret; 2008e705c121SKalle Valo 2009e705c121SKalle Valo mutex_lock(&mvm->mutex); 2010e705c121SKalle Valo 2011e705c121SKalle Valo /* Send the beacon template */ 2012e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); 2013e705c121SKalle Valo if (ret) 2014e705c121SKalle Valo goto out_unlock; 2015e705c121SKalle Valo 2016e705c121SKalle Valo /* 2017e705c121SKalle Valo * Re-calculate the tsf id, as the master-slave relations depend on the 2018e705c121SKalle Valo * beacon interval, which was not known when the AP interface was added. 2019e705c121SKalle Valo */ 2020e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP) 2021e705c121SKalle Valo iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2022e705c121SKalle Valo 2023e705c121SKalle Valo mvmvif->ap_assoc_sta_count = 0; 2024e705c121SKalle Valo 2025e705c121SKalle Valo /* Add the mac context */ 2026e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2027e705c121SKalle Valo if (ret) 2028e705c121SKalle Valo goto out_unlock; 2029e705c121SKalle Valo 2030e705c121SKalle Valo /* Perform the binding */ 2031e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 2032e705c121SKalle Valo if (ret) 2033e705c121SKalle Valo goto out_remove; 2034e705c121SKalle Valo 2035e705c121SKalle Valo /* Send the bcast station. At this stage the TBTT and DTIM time events 2036e705c121SKalle Valo * are added and applied to the scheduler */ 2037e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2038e705c121SKalle Valo if (ret) 2039e705c121SKalle Valo goto out_unbind; 2040e705c121SKalle Valo 2041e705c121SKalle Valo /* must be set before quota calculations */ 2042e705c121SKalle Valo mvmvif->ap_ibss_active = true; 2043e705c121SKalle Valo 2044e705c121SKalle Valo /* power updated needs to be done before quotas */ 2045e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 2046e705c121SKalle Valo 2047e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, false, NULL); 2048e705c121SKalle Valo if (ret) 2049e705c121SKalle Valo goto out_quota_failed; 2050e705c121SKalle Valo 2051e705c121SKalle Valo /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2052e705c121SKalle Valo if (vif->p2p && mvm->p2p_device_vif) 2053e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2054e705c121SKalle Valo 2055e705c121SKalle Valo iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS); 2056e705c121SKalle Valo 2057e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 2058e705c121SKalle Valo 2059e705c121SKalle Valo /* we don't support TDLS during DCM */ 2060e705c121SKalle Valo if (iwl_mvm_phy_ctx_count(mvm) > 1) 2061e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 2062e705c121SKalle Valo 2063e705c121SKalle Valo goto out_unlock; 2064e705c121SKalle Valo 2065e705c121SKalle Valo out_quota_failed: 2066e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 2067e705c121SKalle Valo mvmvif->ap_ibss_active = false; 2068e705c121SKalle Valo iwl_mvm_send_rm_bcast_sta(mvm, vif); 2069e705c121SKalle Valo out_unbind: 2070e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 2071e705c121SKalle Valo out_remove: 2072e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 2073e705c121SKalle Valo out_unlock: 2074e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2075e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP); 2076e705c121SKalle Valo return ret; 2077e705c121SKalle Valo } 2078e705c121SKalle Valo 2079e705c121SKalle Valo static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2080e705c121SKalle Valo struct ieee80211_vif *vif) 2081e705c121SKalle Valo { 2082e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2083e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2084e705c121SKalle Valo 2085e705c121SKalle Valo iwl_mvm_prepare_mac_removal(mvm, vif); 2086e705c121SKalle Valo 2087e705c121SKalle Valo mutex_lock(&mvm->mutex); 2088e705c121SKalle Valo 2089e705c121SKalle Valo /* Handle AP stop while in CSA */ 2090e705c121SKalle Valo if (rcu_access_pointer(mvm->csa_vif) == vif) { 2091e705c121SKalle Valo iwl_mvm_remove_time_event(mvm, mvmvif, 2092e705c121SKalle Valo &mvmvif->time_event_data); 2093e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_vif, NULL); 2094e705c121SKalle Valo mvmvif->csa_countdown = false; 2095e705c121SKalle Valo } 2096e705c121SKalle Valo 2097e705c121SKalle Valo if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2098e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2099e705c121SKalle Valo mvm->csa_tx_block_bcn_timeout = 0; 2100e705c121SKalle Valo } 2101e705c121SKalle Valo 2102e705c121SKalle Valo mvmvif->ap_ibss_active = false; 2103e705c121SKalle Valo mvm->ap_last_beacon_gp2 = 0; 2104e705c121SKalle Valo 2105e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 2106e705c121SKalle Valo 2107e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS); 2108e705c121SKalle Valo 2109e705c121SKalle Valo /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2110e705c121SKalle Valo if (vif->p2p && mvm->p2p_device_vif) 2111e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2112e705c121SKalle Valo 2113e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, NULL); 2114e705c121SKalle Valo iwl_mvm_send_rm_bcast_sta(mvm, vif); 2115e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 2116e705c121SKalle Valo 2117e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 2118e705c121SKalle Valo 2119e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 2120e705c121SKalle Valo 2121e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2122e705c121SKalle Valo } 2123e705c121SKalle Valo 2124e705c121SKalle Valo static void 2125e705c121SKalle Valo iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 2126e705c121SKalle Valo struct ieee80211_vif *vif, 2127e705c121SKalle Valo struct ieee80211_bss_conf *bss_conf, 2128e705c121SKalle Valo u32 changes) 2129e705c121SKalle Valo { 2130e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2131e705c121SKalle Valo 2132e705c121SKalle Valo /* Changes will be applied when the AP/IBSS is started */ 2133e705c121SKalle Valo if (!mvmvif->ap_ibss_active) 2134e705c121SKalle Valo return; 2135e705c121SKalle Valo 2136e705c121SKalle Valo if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 2137e705c121SKalle Valo BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 2138e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 2139e705c121SKalle Valo IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2140e705c121SKalle Valo 2141e705c121SKalle Valo /* Need to send a new beacon template to the FW */ 2142e705c121SKalle Valo if (changes & BSS_CHANGED_BEACON && 2143e705c121SKalle Valo iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) 2144e705c121SKalle Valo IWL_WARN(mvm, "Failed updating beacon data\n"); 2145e705c121SKalle Valo 2146e705c121SKalle Valo if (changes & BSS_CHANGED_TXPOWER) { 2147e705c121SKalle Valo IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 2148e705c121SKalle Valo bss_conf->txpower); 2149e705c121SKalle Valo iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2150e705c121SKalle Valo } 2151e705c121SKalle Valo } 2152e705c121SKalle Valo 2153e705c121SKalle Valo static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 2154e705c121SKalle Valo struct ieee80211_vif *vif, 2155e705c121SKalle Valo struct ieee80211_bss_conf *bss_conf, 2156e705c121SKalle Valo u32 changes) 2157e705c121SKalle Valo { 2158e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2159e705c121SKalle Valo 2160e705c121SKalle Valo /* 2161e705c121SKalle Valo * iwl_mvm_bss_info_changed_station() might call 2162e705c121SKalle Valo * iwl_mvm_protect_session(), which reads directly from 2163e705c121SKalle Valo * the device (the system time), so make sure it is available. 2164e705c121SKalle Valo */ 2165e705c121SKalle Valo if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED)) 2166e705c121SKalle Valo return; 2167e705c121SKalle Valo 2168e705c121SKalle Valo mutex_lock(&mvm->mutex); 2169e705c121SKalle Valo 2170e705c121SKalle Valo if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) 2171e705c121SKalle Valo iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 2172e705c121SKalle Valo 2173e705c121SKalle Valo switch (vif->type) { 2174e705c121SKalle Valo case NL80211_IFTYPE_STATION: 2175e705c121SKalle Valo iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 2176e705c121SKalle Valo break; 2177e705c121SKalle Valo case NL80211_IFTYPE_AP: 2178e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 2179e705c121SKalle Valo iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 2180e705c121SKalle Valo break; 2181e705c121SKalle Valo default: 2182e705c121SKalle Valo /* shouldn't happen */ 2183e705c121SKalle Valo WARN_ON_ONCE(1); 2184e705c121SKalle Valo } 2185e705c121SKalle Valo 2186e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2187e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED); 2188e705c121SKalle Valo } 2189e705c121SKalle Valo 2190e705c121SKalle Valo static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, 2191e705c121SKalle Valo struct ieee80211_vif *vif, 2192e705c121SKalle Valo struct ieee80211_scan_request *hw_req) 2193e705c121SKalle Valo { 2194e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2195e705c121SKalle Valo int ret; 2196e705c121SKalle Valo 2197e705c121SKalle Valo if (hw_req->req.n_channels == 0 || 2198e705c121SKalle Valo hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 2199e705c121SKalle Valo return -EINVAL; 2200e705c121SKalle Valo 2201e705c121SKalle Valo mutex_lock(&mvm->mutex); 2202e705c121SKalle Valo ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 2203e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2204e705c121SKalle Valo 2205e705c121SKalle Valo return ret; 2206e705c121SKalle Valo } 2207e705c121SKalle Valo 2208e705c121SKalle Valo static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 2209e705c121SKalle Valo struct ieee80211_vif *vif) 2210e705c121SKalle Valo { 2211e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2212e705c121SKalle Valo 2213e705c121SKalle Valo mutex_lock(&mvm->mutex); 2214e705c121SKalle Valo 2215e705c121SKalle Valo /* Due to a race condition, it's possible that mac80211 asks 2216e705c121SKalle Valo * us to stop a hw_scan when it's already stopped. This can 2217e705c121SKalle Valo * happen, for instance, if we stopped the scan ourselves, 2218e705c121SKalle Valo * called ieee80211_scan_completed() and the userspace called 2219e705c121SKalle Valo * cancel scan scan before ieee80211_scan_work() could run. 2220e705c121SKalle Valo * To handle that, simply return if the scan is not running. 2221e705c121SKalle Valo */ 2222e705c121SKalle Valo if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 2223e705c121SKalle Valo iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 2224e705c121SKalle Valo 2225e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2226e705c121SKalle Valo } 2227e705c121SKalle Valo 2228e705c121SKalle Valo static void 2229e705c121SKalle Valo iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 2230e705c121SKalle Valo struct ieee80211_sta *sta, u16 tids, 2231e705c121SKalle Valo int num_frames, 2232e705c121SKalle Valo enum ieee80211_frame_release_type reason, 2233e705c121SKalle Valo bool more_data) 2234e705c121SKalle Valo { 2235e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2236e705c121SKalle Valo 2237e705c121SKalle Valo /* Called when we need to transmit (a) frame(s) from mac80211 */ 2238e705c121SKalle Valo 2239e705c121SKalle Valo iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2240e705c121SKalle Valo tids, more_data, false); 2241e705c121SKalle Valo } 2242e705c121SKalle Valo 2243e705c121SKalle Valo static void 2244e705c121SKalle Valo iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 2245e705c121SKalle Valo struct ieee80211_sta *sta, u16 tids, 2246e705c121SKalle Valo int num_frames, 2247e705c121SKalle Valo enum ieee80211_frame_release_type reason, 2248e705c121SKalle Valo bool more_data) 2249e705c121SKalle Valo { 2250e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2251e705c121SKalle Valo 2252e705c121SKalle Valo /* Called when we need to transmit (a) frame(s) from agg queue */ 2253e705c121SKalle Valo 2254e705c121SKalle Valo iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2255e705c121SKalle Valo tids, more_data, true); 2256e705c121SKalle Valo } 2257e705c121SKalle Valo 2258e705c121SKalle Valo static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2259e705c121SKalle Valo struct ieee80211_vif *vif, 2260e705c121SKalle Valo enum sta_notify_cmd cmd, 2261e705c121SKalle Valo struct ieee80211_sta *sta) 2262e705c121SKalle Valo { 2263e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2264e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2265e705c121SKalle Valo unsigned long txqs = 0, tids = 0; 2266e705c121SKalle Valo int tid; 2267e705c121SKalle Valo 2268e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2269e705c121SKalle Valo for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 2270e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2271e705c121SKalle Valo 2272e705c121SKalle Valo if (tid_data->state != IWL_AGG_ON && 2273e705c121SKalle Valo tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA) 2274e705c121SKalle Valo continue; 2275e705c121SKalle Valo 2276e705c121SKalle Valo __set_bit(tid_data->txq_id, &txqs); 2277e705c121SKalle Valo 2278e705c121SKalle Valo if (iwl_mvm_tid_queued(tid_data) == 0) 2279e705c121SKalle Valo continue; 2280e705c121SKalle Valo 2281e705c121SKalle Valo __set_bit(tid, &tids); 2282e705c121SKalle Valo } 2283e705c121SKalle Valo 2284e705c121SKalle Valo switch (cmd) { 2285e705c121SKalle Valo case STA_NOTIFY_SLEEP: 2286e705c121SKalle Valo if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) 2287e705c121SKalle Valo ieee80211_sta_block_awake(hw, sta, true); 2288e705c121SKalle Valo 2289e705c121SKalle Valo for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 2290e705c121SKalle Valo ieee80211_sta_set_buffered(sta, tid, true); 2291e705c121SKalle Valo 2292e705c121SKalle Valo if (txqs) 2293e705c121SKalle Valo iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 2294e705c121SKalle Valo /* 2295e705c121SKalle Valo * The fw updates the STA to be asleep. Tx packets on the Tx 2296e705c121SKalle Valo * queues to this station will not be transmitted. The fw will 2297e705c121SKalle Valo * send a Tx response with TX_STATUS_FAIL_DEST_PS. 2298e705c121SKalle Valo */ 2299e705c121SKalle Valo break; 2300e705c121SKalle Valo case STA_NOTIFY_AWAKE: 2301e705c121SKalle Valo if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT)) 2302e705c121SKalle Valo break; 2303e705c121SKalle Valo 2304e705c121SKalle Valo if (txqs) 2305e705c121SKalle Valo iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 2306e705c121SKalle Valo iwl_mvm_sta_modify_ps_wake(mvm, sta); 2307e705c121SKalle Valo break; 2308e705c121SKalle Valo default: 2309e705c121SKalle Valo break; 2310e705c121SKalle Valo } 2311e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2312e705c121SKalle Valo } 2313e705c121SKalle Valo 2314e705c121SKalle Valo static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 2315e705c121SKalle Valo struct ieee80211_vif *vif, 2316e705c121SKalle Valo struct ieee80211_sta *sta) 2317e705c121SKalle Valo { 2318e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2319e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2320e705c121SKalle Valo 2321e705c121SKalle Valo /* 2322e705c121SKalle Valo * This is called before mac80211 does RCU synchronisation, 2323e705c121SKalle Valo * so here we already invalidate our internal RCU-protected 2324e705c121SKalle Valo * station pointer. The rest of the code will thus no longer 2325e705c121SKalle Valo * be able to find the station this way, and we don't rely 2326e705c121SKalle Valo * on further RCU synchronisation after the sta_state() 2327e705c121SKalle Valo * callback deleted the station. 2328e705c121SKalle Valo */ 2329e705c121SKalle Valo mutex_lock(&mvm->mutex); 2330e705c121SKalle Valo if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) 2331e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], 2332e705c121SKalle Valo ERR_PTR(-ENOENT)); 2333e705c121SKalle Valo 2334e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2335e705c121SKalle Valo } 2336e705c121SKalle Valo 2337e705c121SKalle Valo static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2338e705c121SKalle Valo const u8 *bssid) 2339e705c121SKalle Valo { 2340e705c121SKalle Valo if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 2341e705c121SKalle Valo return; 2342e705c121SKalle Valo 2343cee5a882SAvri Altman if (vif->p2p && !iwl_mvm_is_p2p_standalone_uapsd_supported(mvm)) { 2344cee5a882SAvri Altman vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2345cee5a882SAvri Altman return; 2346cee5a882SAvri Altman } 2347cee5a882SAvri Altman 2348e705c121SKalle Valo if (iwlwifi_mod_params.uapsd_disable) { 2349e705c121SKalle Valo vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2350e705c121SKalle Valo return; 2351e705c121SKalle Valo } 2352e705c121SKalle Valo 2353e705c121SKalle Valo vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 2354e705c121SKalle Valo } 2355e705c121SKalle Valo 23561e8f1329SGolan Ben-Ami static void 23571e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 23581e8f1329SGolan Ben-Ami struct ieee80211_vif *vif, u8 *peer_addr, 23591e8f1329SGolan Ben-Ami enum nl80211_tdls_operation action) 23601e8f1329SGolan Ben-Ami { 23611e8f1329SGolan Ben-Ami struct iwl_fw_dbg_trigger_tlv *trig; 23621e8f1329SGolan Ben-Ami struct iwl_fw_dbg_trigger_tdls *tdls_trig; 23631e8f1329SGolan Ben-Ami 23641e8f1329SGolan Ben-Ami if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS)) 23651e8f1329SGolan Ben-Ami return; 23661e8f1329SGolan Ben-Ami 23671e8f1329SGolan Ben-Ami trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS); 23681e8f1329SGolan Ben-Ami tdls_trig = (void *)trig->data; 23691e8f1329SGolan Ben-Ami if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 23701e8f1329SGolan Ben-Ami return; 23711e8f1329SGolan Ben-Ami 23721e8f1329SGolan Ben-Ami if (!(tdls_trig->action_bitmap & BIT(action))) 23731e8f1329SGolan Ben-Ami return; 23741e8f1329SGolan Ben-Ami 23751e8f1329SGolan Ben-Ami if (tdls_trig->peer_mode && 23761e8f1329SGolan Ben-Ami memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 23771e8f1329SGolan Ben-Ami return; 23781e8f1329SGolan Ben-Ami 23791e8f1329SGolan Ben-Ami iwl_mvm_fw_dbg_collect_trig(mvm, trig, 23801e8f1329SGolan Ben-Ami "TDLS event occurred, peer %pM, action %d", 23811e8f1329SGolan Ben-Ami peer_addr, action); 23821e8f1329SGolan Ben-Ami } 23831e8f1329SGolan Ben-Ami 2384e705c121SKalle Valo static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 2385e705c121SKalle Valo struct ieee80211_vif *vif, 2386e705c121SKalle Valo struct ieee80211_sta *sta, 2387e705c121SKalle Valo enum ieee80211_sta_state old_state, 2388e705c121SKalle Valo enum ieee80211_sta_state new_state) 2389e705c121SKalle Valo { 2390e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2391e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2392e705c121SKalle Valo int ret; 2393e705c121SKalle Valo 2394e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 2395e705c121SKalle Valo sta->addr, old_state, new_state); 2396e705c121SKalle Valo 2397e705c121SKalle Valo /* this would be a mac80211 bug ... but don't crash */ 2398e705c121SKalle Valo if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) 2399e705c121SKalle Valo return -EINVAL; 2400e705c121SKalle Valo 2401e705c121SKalle Valo /* if a STA is being removed, reuse its ID */ 2402e705c121SKalle Valo flush_work(&mvm->sta_drained_wk); 2403e705c121SKalle Valo 2404e705c121SKalle Valo mutex_lock(&mvm->mutex); 2405e705c121SKalle Valo if (old_state == IEEE80211_STA_NOTEXIST && 2406e705c121SKalle Valo new_state == IEEE80211_STA_NONE) { 2407e705c121SKalle Valo /* 2408e705c121SKalle Valo * Firmware bug - it'll crash if the beacon interval is less 2409e705c121SKalle Valo * than 16. We can't avoid connecting at all, so refuse the 2410e705c121SKalle Valo * station state change, this will cause mac80211 to abandon 2411e705c121SKalle Valo * attempts to connect to this AP, and eventually wpa_s will 2412e705c121SKalle Valo * blacklist the AP... 2413e705c121SKalle Valo */ 2414e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 2415e705c121SKalle Valo vif->bss_conf.beacon_int < 16) { 2416e705c121SKalle Valo IWL_ERR(mvm, 2417e705c121SKalle Valo "AP %pM beacon interval is %d, refusing due to firmware bug!\n", 2418e705c121SKalle Valo sta->addr, vif->bss_conf.beacon_int); 2419e705c121SKalle Valo ret = -EINVAL; 2420e705c121SKalle Valo goto out_unlock; 2421e705c121SKalle Valo } 2422e705c121SKalle Valo 2423e705c121SKalle Valo if (sta->tdls && 2424e705c121SKalle Valo (vif->p2p || 2425e705c121SKalle Valo iwl_mvm_tdls_sta_count(mvm, NULL) == 2426e705c121SKalle Valo IWL_MVM_TDLS_STA_COUNT || 2427e705c121SKalle Valo iwl_mvm_phy_ctx_count(mvm) > 1)) { 2428e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 2429e705c121SKalle Valo ret = -EBUSY; 2430e705c121SKalle Valo goto out_unlock; 2431e705c121SKalle Valo } 2432e705c121SKalle Valo 2433e705c121SKalle Valo ret = iwl_mvm_add_sta(mvm, vif, sta); 24341e8f1329SGolan Ben-Ami if (sta->tdls && ret == 0) { 2435e705c121SKalle Valo iwl_mvm_recalc_tdls_state(mvm, vif, true); 24361e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 24371e8f1329SGolan Ben-Ami NL80211_TDLS_SETUP); 24381e8f1329SGolan Ben-Ami } 2439e705c121SKalle Valo } else if (old_state == IEEE80211_STA_NONE && 2440e705c121SKalle Valo new_state == IEEE80211_STA_AUTH) { 2441e705c121SKalle Valo /* 2442e705c121SKalle Valo * EBS may be disabled due to previous failures reported by FW. 2443e705c121SKalle Valo * Reset EBS status here assuming environment has been changed. 2444e705c121SKalle Valo */ 2445e705c121SKalle Valo mvm->last_ebs_successful = true; 2446e705c121SKalle Valo iwl_mvm_check_uapsd(mvm, vif, sta->addr); 2447e705c121SKalle Valo ret = 0; 2448e705c121SKalle Valo } else if (old_state == IEEE80211_STA_AUTH && 2449e705c121SKalle Valo new_state == IEEE80211_STA_ASSOC) { 24508be30c13SAyala Beker if (vif->type == NL80211_IFTYPE_AP) { 24518be30c13SAyala Beker mvmvif->ap_assoc_sta_count++; 24528be30c13SAyala Beker iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 24538be30c13SAyala Beker } 2454e705c121SKalle Valo ret = iwl_mvm_update_sta(mvm, vif, sta); 2455e705c121SKalle Valo if (ret == 0) 2456e705c121SKalle Valo iwl_mvm_rs_rate_init(mvm, sta, 2457e705c121SKalle Valo mvmvif->phy_ctxt->channel->band, 2458e705c121SKalle Valo true); 2459e705c121SKalle Valo } else if (old_state == IEEE80211_STA_ASSOC && 2460e705c121SKalle Valo new_state == IEEE80211_STA_AUTHORIZED) { 2461e705c121SKalle Valo 2462e705c121SKalle Valo /* we don't support TDLS during DCM */ 2463e705c121SKalle Valo if (iwl_mvm_phy_ctx_count(mvm) > 1) 2464e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 2465e705c121SKalle Valo 24661e8f1329SGolan Ben-Ami if (sta->tdls) 24671e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 24681e8f1329SGolan Ben-Ami NL80211_TDLS_ENABLE_LINK); 24691e8f1329SGolan Ben-Ami 2470e705c121SKalle Valo /* enable beacon filtering */ 2471e705c121SKalle Valo WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2472e705c121SKalle Valo ret = 0; 2473e705c121SKalle Valo } else if (old_state == IEEE80211_STA_AUTHORIZED && 2474e705c121SKalle Valo new_state == IEEE80211_STA_ASSOC) { 2475e705c121SKalle Valo /* disable beacon filtering */ 2476e705c121SKalle Valo WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0)); 2477e705c121SKalle Valo ret = 0; 2478e705c121SKalle Valo } else if (old_state == IEEE80211_STA_ASSOC && 2479e705c121SKalle Valo new_state == IEEE80211_STA_AUTH) { 24808be30c13SAyala Beker if (vif->type == NL80211_IFTYPE_AP) { 24818be30c13SAyala Beker mvmvif->ap_assoc_sta_count--; 24828be30c13SAyala Beker iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 24838be30c13SAyala Beker } 2484e705c121SKalle Valo ret = 0; 2485e705c121SKalle Valo } else if (old_state == IEEE80211_STA_AUTH && 2486e705c121SKalle Valo new_state == IEEE80211_STA_NONE) { 2487e705c121SKalle Valo ret = 0; 2488e705c121SKalle Valo } else if (old_state == IEEE80211_STA_NONE && 2489e705c121SKalle Valo new_state == IEEE80211_STA_NOTEXIST) { 2490e705c121SKalle Valo ret = iwl_mvm_rm_sta(mvm, vif, sta); 24911e8f1329SGolan Ben-Ami if (sta->tdls) { 2492e705c121SKalle Valo iwl_mvm_recalc_tdls_state(mvm, vif, false); 24931e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 24941e8f1329SGolan Ben-Ami NL80211_TDLS_DISABLE_LINK); 24951e8f1329SGolan Ben-Ami } 2496e705c121SKalle Valo } else { 2497e705c121SKalle Valo ret = -EIO; 2498e705c121SKalle Valo } 2499e705c121SKalle Valo out_unlock: 2500e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2501e705c121SKalle Valo 2502e705c121SKalle Valo if (sta->tdls && ret == 0) { 2503e705c121SKalle Valo if (old_state == IEEE80211_STA_NOTEXIST && 2504e705c121SKalle Valo new_state == IEEE80211_STA_NONE) 2505e705c121SKalle Valo ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 2506e705c121SKalle Valo else if (old_state == IEEE80211_STA_NONE && 2507e705c121SKalle Valo new_state == IEEE80211_STA_NOTEXIST) 2508e705c121SKalle Valo ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 2509e705c121SKalle Valo } 2510e705c121SKalle Valo 2511e705c121SKalle Valo return ret; 2512e705c121SKalle Valo } 2513e705c121SKalle Valo 2514e705c121SKalle Valo static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 2515e705c121SKalle Valo { 2516e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2517e705c121SKalle Valo 2518e705c121SKalle Valo mvm->rts_threshold = value; 2519e705c121SKalle Valo 2520e705c121SKalle Valo return 0; 2521e705c121SKalle Valo } 2522e705c121SKalle Valo 2523e705c121SKalle Valo static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, 2524e705c121SKalle Valo struct ieee80211_vif *vif, 2525e705c121SKalle Valo struct ieee80211_sta *sta, u32 changed) 2526e705c121SKalle Valo { 2527e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2528e705c121SKalle Valo 2529e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 2530e705c121SKalle Valo changed & IEEE80211_RC_NSS_CHANGED) 2531e705c121SKalle Valo iwl_mvm_sf_update(mvm, vif, false); 2532e705c121SKalle Valo } 2533e705c121SKalle Valo 2534e705c121SKalle Valo static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 2535e705c121SKalle Valo struct ieee80211_vif *vif, u16 ac, 2536e705c121SKalle Valo const struct ieee80211_tx_queue_params *params) 2537e705c121SKalle Valo { 2538e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2539e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2540e705c121SKalle Valo 2541e705c121SKalle Valo mvmvif->queue_params[ac] = *params; 2542e705c121SKalle Valo 2543e705c121SKalle Valo /* 2544e705c121SKalle Valo * No need to update right away, we'll get BSS_CHANGED_QOS 2545e705c121SKalle Valo * The exception is P2P_DEVICE interface which needs immediate update. 2546e705c121SKalle Valo */ 2547e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 2548e705c121SKalle Valo int ret; 2549e705c121SKalle Valo 2550e705c121SKalle Valo mutex_lock(&mvm->mutex); 2551e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2552e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2553e705c121SKalle Valo return ret; 2554e705c121SKalle Valo } 2555e705c121SKalle Valo return 0; 2556e705c121SKalle Valo } 2557e705c121SKalle Valo 2558e705c121SKalle Valo static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 2559e705c121SKalle Valo struct ieee80211_vif *vif) 2560e705c121SKalle Valo { 2561e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 25627c70fee5SSara Sharon u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 25637c70fee5SSara Sharon u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2564e705c121SKalle Valo 2565e705c121SKalle Valo if (WARN_ON_ONCE(vif->bss_conf.assoc)) 2566e705c121SKalle Valo return; 2567e705c121SKalle Valo 2568e705c121SKalle Valo /* 2569e705c121SKalle Valo * iwl_mvm_protect_session() reads directly from the device 2570e705c121SKalle Valo * (the system time), so make sure it is available. 2571e705c121SKalle Valo */ 2572e705c121SKalle Valo if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX)) 2573e705c121SKalle Valo return; 2574e705c121SKalle Valo 2575e705c121SKalle Valo mutex_lock(&mvm->mutex); 2576e705c121SKalle Valo /* Try really hard to protect the session and hear a beacon */ 2577e705c121SKalle Valo iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false); 2578e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2579e705c121SKalle Valo 2580e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX); 2581e705c121SKalle Valo } 2582e705c121SKalle Valo 2583e705c121SKalle Valo static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 2584e705c121SKalle Valo struct ieee80211_vif *vif, 2585e705c121SKalle Valo struct cfg80211_sched_scan_request *req, 2586e705c121SKalle Valo struct ieee80211_scan_ies *ies) 2587e705c121SKalle Valo { 2588e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2589e705c121SKalle Valo 2590e705c121SKalle Valo int ret; 2591e705c121SKalle Valo 2592e705c121SKalle Valo mutex_lock(&mvm->mutex); 2593e705c121SKalle Valo 2594e705c121SKalle Valo if (!vif->bss_conf.idle) { 2595e705c121SKalle Valo ret = -EBUSY; 2596e705c121SKalle Valo goto out; 2597e705c121SKalle Valo } 2598e705c121SKalle Valo 2599e705c121SKalle Valo ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 2600e705c121SKalle Valo 2601e705c121SKalle Valo out: 2602e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2603e705c121SKalle Valo return ret; 2604e705c121SKalle Valo } 2605e705c121SKalle Valo 2606e705c121SKalle Valo static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 2607e705c121SKalle Valo struct ieee80211_vif *vif) 2608e705c121SKalle Valo { 2609e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2610e705c121SKalle Valo int ret; 2611e705c121SKalle Valo 2612e705c121SKalle Valo mutex_lock(&mvm->mutex); 2613e705c121SKalle Valo 2614e705c121SKalle Valo /* Due to a race condition, it's possible that mac80211 asks 2615e705c121SKalle Valo * us to stop a sched_scan when it's already stopped. This 2616e705c121SKalle Valo * can happen, for instance, if we stopped the scan ourselves, 2617e705c121SKalle Valo * called ieee80211_sched_scan_stopped() and the userspace called 2618e705c121SKalle Valo * stop sched scan scan before ieee80211_sched_scan_stopped_work() 2619e705c121SKalle Valo * could run. To handle this, simply return if the scan is 2620e705c121SKalle Valo * not running. 2621e705c121SKalle Valo */ 2622e705c121SKalle Valo if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 2623e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2624e705c121SKalle Valo return 0; 2625e705c121SKalle Valo } 2626e705c121SKalle Valo 2627e705c121SKalle Valo ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 2628e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2629e705c121SKalle Valo iwl_mvm_wait_for_async_handlers(mvm); 2630e705c121SKalle Valo 2631e705c121SKalle Valo return ret; 2632e705c121SKalle Valo } 2633e705c121SKalle Valo 2634e705c121SKalle Valo static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 2635e705c121SKalle Valo enum set_key_cmd cmd, 2636e705c121SKalle Valo struct ieee80211_vif *vif, 2637e705c121SKalle Valo struct ieee80211_sta *sta, 2638e705c121SKalle Valo struct ieee80211_key_conf *key) 2639e705c121SKalle Valo { 2640e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2641f5e28eacSJohannes Berg struct iwl_mvm_sta *mvmsta; 2642f5e28eacSJohannes Berg struct iwl_mvm_key_pn *ptk_pn; 2643f5e28eacSJohannes Berg int keyidx = key->keyidx; 2644e705c121SKalle Valo int ret; 26454615fd15SEmmanuel Grumbach u8 key_offset; 2646e705c121SKalle Valo 2647e705c121SKalle Valo if (iwlwifi_mod_params.sw_crypto) { 2648e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); 2649e705c121SKalle Valo return -EOPNOTSUPP; 2650e705c121SKalle Valo } 2651e705c121SKalle Valo 2652e705c121SKalle Valo switch (key->cipher) { 2653e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 2654e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 26551ad4f639SEliad Peller key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 2656e705c121SKalle Valo break; 2657e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 2658e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 2659e705c121SKalle Valo break; 2660e705c121SKalle Valo case WLAN_CIPHER_SUITE_AES_CMAC: 2661e705c121SKalle Valo WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 2662e705c121SKalle Valo break; 2663e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 2664e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 2665e705c121SKalle Valo /* For non-client mode, only use WEP keys for TX as we probably 2666e705c121SKalle Valo * don't have a station yet anyway and would then have to keep 2667e705c121SKalle Valo * track of the keys, linking them to each of the clients/peers 2668e705c121SKalle Valo * as they appear. For now, don't do that, for performance WEP 2669e705c121SKalle Valo * offload doesn't really matter much, but we need it for some 2670e705c121SKalle Valo * other offload features in client mode. 2671e705c121SKalle Valo */ 2672e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION) 2673e705c121SKalle Valo return 0; 2674e705c121SKalle Valo break; 2675e705c121SKalle Valo default: 2676e705c121SKalle Valo /* currently FW supports only one optional cipher scheme */ 2677e705c121SKalle Valo if (hw->n_cipher_schemes && 2678e705c121SKalle Valo hw->cipher_schemes->cipher == key->cipher) 2679e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 2680e705c121SKalle Valo else 2681e705c121SKalle Valo return -EOPNOTSUPP; 2682e705c121SKalle Valo } 2683e705c121SKalle Valo 2684e705c121SKalle Valo mutex_lock(&mvm->mutex); 2685e705c121SKalle Valo 2686e705c121SKalle Valo switch (cmd) { 2687e705c121SKalle Valo case SET_KEY: 2688e705c121SKalle Valo if ((vif->type == NL80211_IFTYPE_ADHOC || 2689e705c121SKalle Valo vif->type == NL80211_IFTYPE_AP) && !sta) { 2690e705c121SKalle Valo /* 2691e705c121SKalle Valo * GTK on AP interface is a TX-only key, return 0; 2692e705c121SKalle Valo * on IBSS they're per-station and because we're lazy 2693e705c121SKalle Valo * we don't support them for RX, so do the same. 269481279c49SJohannes Berg * CMAC in AP/IBSS modes must be done in software. 2695e705c121SKalle Valo */ 269681279c49SJohannes Berg if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC) 269781279c49SJohannes Berg ret = -EOPNOTSUPP; 269881279c49SJohannes Berg else 2699e705c121SKalle Valo ret = 0; 2700e705c121SKalle Valo key->hw_key_idx = STA_KEY_IDX_INVALID; 2701e705c121SKalle Valo break; 2702e705c121SKalle Valo } 2703e705c121SKalle Valo 2704e705c121SKalle Valo /* During FW restart, in order to restore the state as it was, 2705e705c121SKalle Valo * don't try to reprogram keys we previously failed for. 2706e705c121SKalle Valo */ 2707e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2708e705c121SKalle Valo key->hw_key_idx == STA_KEY_IDX_INVALID) { 2709e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, 2710e705c121SKalle Valo "skip invalid idx key programming during restart\n"); 2711e705c121SKalle Valo ret = 0; 2712e705c121SKalle Valo break; 2713e705c121SKalle Valo } 2714e705c121SKalle Valo 2715f5e28eacSJohannes Berg if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2716f5e28eacSJohannes Berg sta && iwl_mvm_has_new_rx_api(mvm) && 2717f5e28eacSJohannes Berg key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 2718f5e28eacSJohannes Berg (key->cipher == WLAN_CIPHER_SUITE_CCMP || 2719f5e28eacSJohannes Berg key->cipher == WLAN_CIPHER_SUITE_GCMP)) { 2720f5e28eacSJohannes Berg struct ieee80211_key_seq seq; 2721f5e28eacSJohannes Berg int tid, q; 2722f5e28eacSJohannes Berg 2723f5e28eacSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 2724f5e28eacSJohannes Berg WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 2725f5e28eacSJohannes Berg ptk_pn = kzalloc(sizeof(*ptk_pn) + 2726f5e28eacSJohannes Berg mvm->trans->num_rx_queues * 2727f5e28eacSJohannes Berg sizeof(ptk_pn->q[0]), 2728f5e28eacSJohannes Berg GFP_KERNEL); 2729f5e28eacSJohannes Berg if (!ptk_pn) { 2730f5e28eacSJohannes Berg ret = -ENOMEM; 2731f5e28eacSJohannes Berg break; 2732f5e28eacSJohannes Berg } 2733f5e28eacSJohannes Berg 2734f5e28eacSJohannes Berg for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 2735f5e28eacSJohannes Berg ieee80211_get_key_rx_seq(key, tid, &seq); 2736f5e28eacSJohannes Berg for (q = 0; q < mvm->trans->num_rx_queues; q++) 2737f5e28eacSJohannes Berg memcpy(ptk_pn->q[q].pn[tid], 2738f5e28eacSJohannes Berg seq.ccmp.pn, 2739f5e28eacSJohannes Berg IEEE80211_CCMP_PN_LEN); 2740f5e28eacSJohannes Berg } 2741f5e28eacSJohannes Berg 2742f5e28eacSJohannes Berg rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 2743f5e28eacSJohannes Berg } 2744f5e28eacSJohannes Berg 27454615fd15SEmmanuel Grumbach /* in HW restart reuse the index, otherwise request a new one */ 27464615fd15SEmmanuel Grumbach if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 27474615fd15SEmmanuel Grumbach key_offset = key->hw_key_idx; 27484615fd15SEmmanuel Grumbach else 27494615fd15SEmmanuel Grumbach key_offset = STA_KEY_IDX_INVALID; 27504615fd15SEmmanuel Grumbach 2751e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); 27524615fd15SEmmanuel Grumbach ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 2753e705c121SKalle Valo if (ret) { 2754e705c121SKalle Valo IWL_WARN(mvm, "set key failed\n"); 2755e705c121SKalle Valo /* 2756e705c121SKalle Valo * can't add key for RX, but we don't need it 2757e705c121SKalle Valo * in the device for TX so still return 0 2758e705c121SKalle Valo */ 2759e705c121SKalle Valo key->hw_key_idx = STA_KEY_IDX_INVALID; 2760e705c121SKalle Valo ret = 0; 2761e705c121SKalle Valo } 2762e705c121SKalle Valo 2763e705c121SKalle Valo break; 2764e705c121SKalle Valo case DISABLE_KEY: 2765e705c121SKalle Valo if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 2766e705c121SKalle Valo ret = 0; 2767e705c121SKalle Valo break; 2768e705c121SKalle Valo } 2769e705c121SKalle Valo 2770f5e28eacSJohannes Berg if (sta && iwl_mvm_has_new_rx_api(mvm) && 2771f5e28eacSJohannes Berg key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 2772f5e28eacSJohannes Berg (key->cipher == WLAN_CIPHER_SUITE_CCMP || 2773f5e28eacSJohannes Berg key->cipher == WLAN_CIPHER_SUITE_GCMP)) { 2774f5e28eacSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 2775f5e28eacSJohannes Berg ptk_pn = rcu_dereference_protected( 2776f5e28eacSJohannes Berg mvmsta->ptk_pn[keyidx], 2777f5e28eacSJohannes Berg lockdep_is_held(&mvm->mutex)); 2778f5e28eacSJohannes Berg RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 2779f5e28eacSJohannes Berg if (ptk_pn) 2780f5e28eacSJohannes Berg kfree_rcu(ptk_pn, rcu_head); 2781f5e28eacSJohannes Berg } 2782f5e28eacSJohannes Berg 2783e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 2784e705c121SKalle Valo ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 2785e705c121SKalle Valo break; 2786e705c121SKalle Valo default: 2787e705c121SKalle Valo ret = -EINVAL; 2788e705c121SKalle Valo } 2789e705c121SKalle Valo 2790e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2791e705c121SKalle Valo return ret; 2792e705c121SKalle Valo } 2793e705c121SKalle Valo 2794e705c121SKalle Valo static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 2795e705c121SKalle Valo struct ieee80211_vif *vif, 2796e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 2797e705c121SKalle Valo struct ieee80211_sta *sta, 2798e705c121SKalle Valo u32 iv32, u16 *phase1key) 2799e705c121SKalle Valo { 2800e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2801e705c121SKalle Valo 2802e705c121SKalle Valo if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 2803e705c121SKalle Valo return; 2804e705c121SKalle Valo 2805e705c121SKalle Valo iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 2806e705c121SKalle Valo } 2807e705c121SKalle Valo 2808e705c121SKalle Valo 2809e705c121SKalle Valo static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 2810e705c121SKalle Valo struct iwl_rx_packet *pkt, void *data) 2811e705c121SKalle Valo { 2812e705c121SKalle Valo struct iwl_mvm *mvm = 2813e705c121SKalle Valo container_of(notif_wait, struct iwl_mvm, notif_wait); 2814e705c121SKalle Valo struct iwl_hs20_roc_res *resp; 2815e705c121SKalle Valo int resp_len = iwl_rx_packet_payload_len(pkt); 2816e705c121SKalle Valo struct iwl_mvm_time_event_data *te_data = data; 2817e705c121SKalle Valo 2818e705c121SKalle Valo if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 2819e705c121SKalle Valo return true; 2820e705c121SKalle Valo 2821e705c121SKalle Valo if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 2822e705c121SKalle Valo IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 2823e705c121SKalle Valo return true; 2824e705c121SKalle Valo } 2825e705c121SKalle Valo 2826e705c121SKalle Valo resp = (void *)pkt->data; 2827e705c121SKalle Valo 2828e705c121SKalle Valo IWL_DEBUG_TE(mvm, 2829e705c121SKalle Valo "Aux ROC: Recieved response from ucode: status=%d uid=%d\n", 2830e705c121SKalle Valo resp->status, resp->event_unique_id); 2831e705c121SKalle Valo 2832e705c121SKalle Valo te_data->uid = le32_to_cpu(resp->event_unique_id); 2833e705c121SKalle Valo IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 2834e705c121SKalle Valo te_data->uid); 2835e705c121SKalle Valo 2836e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 2837e705c121SKalle Valo list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 2838e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 2839e705c121SKalle Valo 2840e705c121SKalle Valo return true; 2841e705c121SKalle Valo } 2842e705c121SKalle Valo 2843dc28e12fSMatti Gottlieb #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 2844dc28e12fSMatti Gottlieb #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 2845dc28e12fSMatti Gottlieb #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 2846dc28e12fSMatti Gottlieb #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 2847dc28e12fSMatti Gottlieb #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 2848e705c121SKalle Valo static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 2849e705c121SKalle Valo struct ieee80211_channel *channel, 2850e705c121SKalle Valo struct ieee80211_vif *vif, 2851e705c121SKalle Valo int duration) 2852e705c121SKalle Valo { 2853e705c121SKalle Valo int res, time_reg = DEVICE_SYSTEM_TIME_REG; 2854e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2855e705c121SKalle Valo struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 2856e705c121SKalle Valo static const u16 time_event_response[] = { HOT_SPOT_CMD }; 2857e705c121SKalle Valo struct iwl_notification_wait wait_time_event; 2858dc28e12fSMatti Gottlieb u32 dtim_interval = vif->bss_conf.dtim_period * 2859dc28e12fSMatti Gottlieb vif->bss_conf.beacon_int; 2860dc28e12fSMatti Gottlieb u32 req_dur, delay; 2861e705c121SKalle Valo struct iwl_hs20_roc_req aux_roc_req = { 2862e705c121SKalle Valo .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 2863e705c121SKalle Valo .id_and_color = 2864e705c121SKalle Valo cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 2865e705c121SKalle Valo .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 2866e705c121SKalle Valo /* Set the channel info data */ 2867e705c121SKalle Valo .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ? 2868e705c121SKalle Valo PHY_BAND_24 : PHY_BAND_5, 2869e705c121SKalle Valo .channel_info.channel = channel->hw_value, 2870e705c121SKalle Valo .channel_info.width = PHY_VHT_CHANNEL_MODE20, 2871e705c121SKalle Valo /* Set the time and duration */ 2872e705c121SKalle Valo .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)), 2873e705c121SKalle Valo }; 2874e705c121SKalle Valo 2875dc28e12fSMatti Gottlieb delay = AUX_ROC_MIN_DELAY; 2876dc28e12fSMatti Gottlieb req_dur = MSEC_TO_TU(duration); 2877dc28e12fSMatti Gottlieb 2878dc28e12fSMatti Gottlieb /* 2879dc28e12fSMatti Gottlieb * If we are associated we want the delay time to be at least one 2880dc28e12fSMatti Gottlieb * dtim interval so that the FW can wait until after the DTIM and 2881dc28e12fSMatti Gottlieb * then start the time event, this will potentially allow us to 2882dc28e12fSMatti Gottlieb * remain off-channel for the max duration. 2883dc28e12fSMatti Gottlieb * Since we want to use almost a whole dtim interval we would also 2884dc28e12fSMatti Gottlieb * like the delay to be for 2-3 dtim intervals, in case there are 2885dc28e12fSMatti Gottlieb * other time events with higher priority. 2886dc28e12fSMatti Gottlieb */ 2887dc28e12fSMatti Gottlieb if (vif->bss_conf.assoc) { 2888dc28e12fSMatti Gottlieb delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 2889dc28e12fSMatti Gottlieb /* We cannot remain off-channel longer than the DTIM interval */ 2890dc28e12fSMatti Gottlieb if (dtim_interval <= req_dur) { 2891dc28e12fSMatti Gottlieb req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 2892dc28e12fSMatti Gottlieb if (req_dur <= AUX_ROC_MIN_DURATION) 2893dc28e12fSMatti Gottlieb req_dur = dtim_interval - 2894dc28e12fSMatti Gottlieb AUX_ROC_MIN_SAFETY_BUFFER; 2895dc28e12fSMatti Gottlieb } 2896dc28e12fSMatti Gottlieb } 2897dc28e12fSMatti Gottlieb 2898dc28e12fSMatti Gottlieb aux_roc_req.duration = cpu_to_le32(req_dur); 2899dc28e12fSMatti Gottlieb aux_roc_req.apply_time_max_delay = cpu_to_le32(delay); 2900dc28e12fSMatti Gottlieb 2901dc28e12fSMatti Gottlieb IWL_DEBUG_TE(mvm, 2902dc28e12fSMatti Gottlieb "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 2903dc28e12fSMatti Gottlieb channel->hw_value, req_dur, duration, delay, 2904dc28e12fSMatti Gottlieb dtim_interval); 2905e705c121SKalle Valo /* Set the node address */ 2906e705c121SKalle Valo memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN); 2907e705c121SKalle Valo 2908e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2909e705c121SKalle Valo 2910e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 2911e705c121SKalle Valo 2912e705c121SKalle Valo if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 2913e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 2914e705c121SKalle Valo return -EIO; 2915e705c121SKalle Valo } 2916e705c121SKalle Valo 2917e705c121SKalle Valo te_data->vif = vif; 2918e705c121SKalle Valo te_data->duration = duration; 2919e705c121SKalle Valo te_data->id = HOT_SPOT_CMD; 2920e705c121SKalle Valo 2921e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 2922e705c121SKalle Valo 2923e705c121SKalle Valo /* 2924e705c121SKalle Valo * Use a notification wait, which really just processes the 2925e705c121SKalle Valo * command response and doesn't wait for anything, in order 2926e705c121SKalle Valo * to be able to process the response and get the UID inside 2927e705c121SKalle Valo * the RX path. Using CMD_WANT_SKB doesn't work because it 2928e705c121SKalle Valo * stores the buffer and then wakes up this thread, by which 2929e705c121SKalle Valo * time another notification (that the time event started) 2930e705c121SKalle Valo * might already be processed unsuccessfully. 2931e705c121SKalle Valo */ 2932e705c121SKalle Valo iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 2933e705c121SKalle Valo time_event_response, 2934e705c121SKalle Valo ARRAY_SIZE(time_event_response), 2935e705c121SKalle Valo iwl_mvm_rx_aux_roc, te_data); 2936e705c121SKalle Valo 2937e705c121SKalle Valo res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req), 2938e705c121SKalle Valo &aux_roc_req); 2939e705c121SKalle Valo 2940e705c121SKalle Valo if (res) { 2941e705c121SKalle Valo IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 2942e705c121SKalle Valo iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 2943e705c121SKalle Valo goto out_clear_te; 2944e705c121SKalle Valo } 2945e705c121SKalle Valo 2946e705c121SKalle Valo /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 2947e705c121SKalle Valo res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 2948e705c121SKalle Valo /* should never fail */ 2949e705c121SKalle Valo WARN_ON_ONCE(res); 2950e705c121SKalle Valo 2951e705c121SKalle Valo if (res) { 2952e705c121SKalle Valo out_clear_te: 2953e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 2954e705c121SKalle Valo iwl_mvm_te_clear_data(mvm, te_data); 2955e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 2956e705c121SKalle Valo } 2957e705c121SKalle Valo 2958e705c121SKalle Valo return res; 2959e705c121SKalle Valo } 2960e705c121SKalle Valo 2961e705c121SKalle Valo static int iwl_mvm_roc(struct ieee80211_hw *hw, 2962e705c121SKalle Valo struct ieee80211_vif *vif, 2963e705c121SKalle Valo struct ieee80211_channel *channel, 2964e705c121SKalle Valo int duration, 2965e705c121SKalle Valo enum ieee80211_roc_type type) 2966e705c121SKalle Valo { 2967e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2968e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2969e705c121SKalle Valo struct cfg80211_chan_def chandef; 2970e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt; 2971e705c121SKalle Valo int ret, i; 2972e705c121SKalle Valo 2973e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 2974e705c121SKalle Valo duration, type); 2975e705c121SKalle Valo 2976e705c121SKalle Valo flush_work(&mvm->roc_done_wk); 2977e705c121SKalle Valo 2978e705c121SKalle Valo mutex_lock(&mvm->mutex); 2979e705c121SKalle Valo 2980e705c121SKalle Valo switch (vif->type) { 2981e705c121SKalle Valo case NL80211_IFTYPE_STATION: 2982e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 2983e705c121SKalle Valo IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 2984e705c121SKalle Valo /* Use aux roc framework (HS20) */ 2985e705c121SKalle Valo ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 2986e705c121SKalle Valo vif, duration); 2987e705c121SKalle Valo goto out_unlock; 2988e705c121SKalle Valo } 2989e705c121SKalle Valo IWL_ERR(mvm, "hotspot not supported\n"); 2990e705c121SKalle Valo ret = -EINVAL; 2991e705c121SKalle Valo goto out_unlock; 2992e705c121SKalle Valo case NL80211_IFTYPE_P2P_DEVICE: 2993e705c121SKalle Valo /* handle below */ 2994e705c121SKalle Valo break; 2995e705c121SKalle Valo default: 2996e705c121SKalle Valo IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 2997e705c121SKalle Valo ret = -EINVAL; 2998e705c121SKalle Valo goto out_unlock; 2999e705c121SKalle Valo } 3000e705c121SKalle Valo 3001e705c121SKalle Valo for (i = 0; i < NUM_PHY_CTX; i++) { 3002e705c121SKalle Valo phy_ctxt = &mvm->phy_ctxts[i]; 3003e705c121SKalle Valo if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) 3004e705c121SKalle Valo continue; 3005e705c121SKalle Valo 3006e705c121SKalle Valo if (phy_ctxt->ref && channel == phy_ctxt->channel) { 3007e705c121SKalle Valo /* 3008e705c121SKalle Valo * Unbind the P2P_DEVICE from the current PHY context, 3009e705c121SKalle Valo * and if the PHY context is not used remove it. 3010e705c121SKalle Valo */ 3011e705c121SKalle Valo ret = iwl_mvm_binding_remove_vif(mvm, vif); 3012e705c121SKalle Valo if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 3013e705c121SKalle Valo goto out_unlock; 3014e705c121SKalle Valo 3015e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 3016e705c121SKalle Valo 3017e705c121SKalle Valo /* Bind the P2P_DEVICE to the current PHY Context */ 3018e705c121SKalle Valo mvmvif->phy_ctxt = phy_ctxt; 3019e705c121SKalle Valo 3020e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 3021e705c121SKalle Valo if (WARN(ret, "Failed binding P2P_DEVICE\n")) 3022e705c121SKalle Valo goto out_unlock; 3023e705c121SKalle Valo 3024e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 3025e705c121SKalle Valo goto schedule_time_event; 3026e705c121SKalle Valo } 3027e705c121SKalle Valo } 3028e705c121SKalle Valo 3029e705c121SKalle Valo /* Need to update the PHY context only if the ROC channel changed */ 3030e705c121SKalle Valo if (channel == mvmvif->phy_ctxt->channel) 3031e705c121SKalle Valo goto schedule_time_event; 3032e705c121SKalle Valo 3033e705c121SKalle Valo cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 3034e705c121SKalle Valo 3035e705c121SKalle Valo /* 3036e705c121SKalle Valo * Change the PHY context configuration as it is currently referenced 3037e705c121SKalle Valo * only by the P2P Device MAC 3038e705c121SKalle Valo */ 3039e705c121SKalle Valo if (mvmvif->phy_ctxt->ref == 1) { 3040e705c121SKalle Valo ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, 3041e705c121SKalle Valo &chandef, 1, 1); 3042e705c121SKalle Valo if (ret) 3043e705c121SKalle Valo goto out_unlock; 3044e705c121SKalle Valo } else { 3045e705c121SKalle Valo /* 3046e705c121SKalle Valo * The PHY context is shared with other MACs. Need to remove the 3047e705c121SKalle Valo * P2P Device from the binding, allocate an new PHY context and 3048e705c121SKalle Valo * create a new binding 3049e705c121SKalle Valo */ 3050e705c121SKalle Valo phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 3051e705c121SKalle Valo if (!phy_ctxt) { 3052e705c121SKalle Valo ret = -ENOSPC; 3053e705c121SKalle Valo goto out_unlock; 3054e705c121SKalle Valo } 3055e705c121SKalle Valo 3056e705c121SKalle Valo ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 3057e705c121SKalle Valo 1, 1); 3058e705c121SKalle Valo if (ret) { 3059e705c121SKalle Valo IWL_ERR(mvm, "Failed to change PHY context\n"); 3060e705c121SKalle Valo goto out_unlock; 3061e705c121SKalle Valo } 3062e705c121SKalle Valo 3063e705c121SKalle Valo /* Unbind the P2P_DEVICE from the current PHY context */ 3064e705c121SKalle Valo ret = iwl_mvm_binding_remove_vif(mvm, vif); 3065e705c121SKalle Valo if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 3066e705c121SKalle Valo goto out_unlock; 3067e705c121SKalle Valo 3068e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 3069e705c121SKalle Valo 3070e705c121SKalle Valo /* Bind the P2P_DEVICE to the new allocated PHY context */ 3071e705c121SKalle Valo mvmvif->phy_ctxt = phy_ctxt; 3072e705c121SKalle Valo 3073e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 3074e705c121SKalle Valo if (WARN(ret, "Failed binding P2P_DEVICE\n")) 3075e705c121SKalle Valo goto out_unlock; 3076e705c121SKalle Valo 3077e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 3078e705c121SKalle Valo } 3079e705c121SKalle Valo 3080e705c121SKalle Valo schedule_time_event: 3081e705c121SKalle Valo /* Schedule the time events */ 3082e705c121SKalle Valo ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 3083e705c121SKalle Valo 3084e705c121SKalle Valo out_unlock: 3085e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3086e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "leave\n"); 3087e705c121SKalle Valo return ret; 3088e705c121SKalle Valo } 3089e705c121SKalle Valo 3090e705c121SKalle Valo static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) 3091e705c121SKalle Valo { 3092e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3093e705c121SKalle Valo 3094e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "enter\n"); 3095e705c121SKalle Valo 3096e705c121SKalle Valo mutex_lock(&mvm->mutex); 3097e705c121SKalle Valo iwl_mvm_stop_roc(mvm); 3098e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3099e705c121SKalle Valo 3100e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "leave\n"); 3101e705c121SKalle Valo return 0; 3102e705c121SKalle Valo } 3103e705c121SKalle Valo 3104e705c121SKalle Valo static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 3105e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3106e705c121SKalle Valo { 3107e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3108e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt; 3109e705c121SKalle Valo int ret; 3110e705c121SKalle Valo 3111e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3112e705c121SKalle Valo 3113e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 3114e705c121SKalle Valo 3115e705c121SKalle Valo phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 3116e705c121SKalle Valo if (!phy_ctxt) { 3117e705c121SKalle Valo ret = -ENOSPC; 3118e705c121SKalle Valo goto out; 3119e705c121SKalle Valo } 3120e705c121SKalle Valo 3121e705c121SKalle Valo ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, 3122e705c121SKalle Valo ctx->rx_chains_static, 3123e705c121SKalle Valo ctx->rx_chains_dynamic); 3124e705c121SKalle Valo if (ret) { 3125e705c121SKalle Valo IWL_ERR(mvm, "Failed to add PHY context\n"); 3126e705c121SKalle Valo goto out; 3127e705c121SKalle Valo } 3128e705c121SKalle Valo 3129e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 3130e705c121SKalle Valo *phy_ctxt_id = phy_ctxt->id; 3131e705c121SKalle Valo out: 3132e705c121SKalle Valo return ret; 3133e705c121SKalle Valo } 3134e705c121SKalle Valo 3135e705c121SKalle Valo static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 3136e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3137e705c121SKalle Valo { 3138e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3139e705c121SKalle Valo int ret; 3140e705c121SKalle Valo 3141e705c121SKalle Valo mutex_lock(&mvm->mutex); 3142e705c121SKalle Valo ret = __iwl_mvm_add_chanctx(mvm, ctx); 3143e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3144e705c121SKalle Valo 3145e705c121SKalle Valo return ret; 3146e705c121SKalle Valo } 3147e705c121SKalle Valo 3148e705c121SKalle Valo static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 3149e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3150e705c121SKalle Valo { 3151e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3152e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3153e705c121SKalle Valo 3154e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3155e705c121SKalle Valo 3156e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 3157e705c121SKalle Valo } 3158e705c121SKalle Valo 3159e705c121SKalle Valo static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 3160e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3161e705c121SKalle Valo { 3162e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3163e705c121SKalle Valo 3164e705c121SKalle Valo mutex_lock(&mvm->mutex); 3165e705c121SKalle Valo __iwl_mvm_remove_chanctx(mvm, ctx); 3166e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3167e705c121SKalle Valo } 3168e705c121SKalle Valo 3169e705c121SKalle Valo static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 3170e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx, 3171e705c121SKalle Valo u32 changed) 3172e705c121SKalle Valo { 3173e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3174e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3175e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3176e705c121SKalle Valo 3177e705c121SKalle Valo if (WARN_ONCE((phy_ctxt->ref > 1) && 3178e705c121SKalle Valo (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 3179e705c121SKalle Valo IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 3180e705c121SKalle Valo IEEE80211_CHANCTX_CHANGE_RADAR | 3181e705c121SKalle Valo IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 3182e705c121SKalle Valo "Cannot change PHY. Ref=%d, changed=0x%X\n", 3183e705c121SKalle Valo phy_ctxt->ref, changed)) 3184e705c121SKalle Valo return; 3185e705c121SKalle Valo 3186e705c121SKalle Valo mutex_lock(&mvm->mutex); 3187e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 3188e705c121SKalle Valo iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, 3189e705c121SKalle Valo ctx->rx_chains_static, 3190e705c121SKalle Valo ctx->rx_chains_dynamic); 3191e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3192e705c121SKalle Valo } 3193e705c121SKalle Valo 3194e705c121SKalle Valo static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 3195e705c121SKalle Valo struct ieee80211_vif *vif, 3196e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx, 3197e705c121SKalle Valo bool switching_chanctx) 3198e705c121SKalle Valo { 3199e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3200e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3201e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3202e705c121SKalle Valo int ret; 3203e705c121SKalle Valo 3204e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3205e705c121SKalle Valo 3206e705c121SKalle Valo mvmvif->phy_ctxt = phy_ctxt; 3207e705c121SKalle Valo 3208e705c121SKalle Valo switch (vif->type) { 3209e705c121SKalle Valo case NL80211_IFTYPE_AP: 3210e705c121SKalle Valo /* only needed if we're switching chanctx (i.e. during CSA) */ 3211e705c121SKalle Valo if (switching_chanctx) { 3212e705c121SKalle Valo mvmvif->ap_ibss_active = true; 3213e705c121SKalle Valo break; 3214e705c121SKalle Valo } 3215e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 3216e705c121SKalle Valo /* 3217e705c121SKalle Valo * The AP binding flow is handled as part of the start_ap flow 3218e705c121SKalle Valo * (in bss_info_changed), similarly for IBSS. 3219e705c121SKalle Valo */ 3220e705c121SKalle Valo ret = 0; 3221e705c121SKalle Valo goto out; 3222e705c121SKalle Valo case NL80211_IFTYPE_STATION: 3223e705c121SKalle Valo break; 3224e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 3225e705c121SKalle Valo /* always disable PS when a monitor interface is active */ 3226e705c121SKalle Valo mvmvif->ps_disabled = true; 3227e705c121SKalle Valo break; 3228e705c121SKalle Valo default: 3229e705c121SKalle Valo ret = -EINVAL; 3230e705c121SKalle Valo goto out; 3231e705c121SKalle Valo } 3232e705c121SKalle Valo 3233e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 3234e705c121SKalle Valo if (ret) 3235e705c121SKalle Valo goto out; 3236e705c121SKalle Valo 3237e705c121SKalle Valo /* 3238e705c121SKalle Valo * Power state must be updated before quotas, 3239e705c121SKalle Valo * otherwise fw will complain. 3240e705c121SKalle Valo */ 3241e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 3242e705c121SKalle Valo 3243e705c121SKalle Valo /* Setting the quota at this stage is only required for monitor 3244e705c121SKalle Valo * interfaces. For the other types, the bss_info changed flow 3245e705c121SKalle Valo * will handle quota settings. 3246e705c121SKalle Valo */ 3247e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_MONITOR) { 3248e705c121SKalle Valo mvmvif->monitor_active = true; 3249e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, false, NULL); 3250e705c121SKalle Valo if (ret) 3251e705c121SKalle Valo goto out_remove_binding; 32520e39eb03SChaya Rachel Ivgi 32530e39eb03SChaya Rachel Ivgi ret = iwl_mvm_add_snif_sta(mvm, vif); 32540e39eb03SChaya Rachel Ivgi if (ret) 32550e39eb03SChaya Rachel Ivgi goto out_remove_binding; 32560e39eb03SChaya Rachel Ivgi 3257e705c121SKalle Valo } 3258e705c121SKalle Valo 3259e705c121SKalle Valo /* Handle binding during CSA */ 3260e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP) { 3261e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, NULL); 3262e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3263e705c121SKalle Valo } 3264e705c121SKalle Valo 3265e705c121SKalle Valo if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { 3266e705c121SKalle Valo u32 duration = 2 * vif->bss_conf.beacon_int; 3267e705c121SKalle Valo 3268e705c121SKalle Valo /* iwl_mvm_protect_session() reads directly from the 3269e705c121SKalle Valo * device (the system time), so make sure it is 3270e705c121SKalle Valo * available. 3271e705c121SKalle Valo */ 3272e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA); 3273e705c121SKalle Valo if (ret) 3274e705c121SKalle Valo goto out_remove_binding; 3275e705c121SKalle Valo 3276e705c121SKalle Valo /* Protect the session to make sure we hear the first 3277e705c121SKalle Valo * beacon on the new channel. 3278e705c121SKalle Valo */ 3279e705c121SKalle Valo iwl_mvm_protect_session(mvm, vif, duration, duration, 3280e705c121SKalle Valo vif->bss_conf.beacon_int / 2, 3281e705c121SKalle Valo true); 3282e705c121SKalle Valo 3283e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA); 3284e705c121SKalle Valo 3285e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, NULL); 3286e705c121SKalle Valo } 3287e705c121SKalle Valo 3288e705c121SKalle Valo goto out; 3289e705c121SKalle Valo 3290e705c121SKalle Valo out_remove_binding: 3291e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 3292e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 3293e705c121SKalle Valo out: 3294e705c121SKalle Valo if (ret) 3295e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 3296e705c121SKalle Valo return ret; 3297e705c121SKalle Valo } 3298e705c121SKalle Valo static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 3299e705c121SKalle Valo struct ieee80211_vif *vif, 3300e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3301e705c121SKalle Valo { 3302e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3303e705c121SKalle Valo int ret; 3304e705c121SKalle Valo 3305e705c121SKalle Valo mutex_lock(&mvm->mutex); 3306e705c121SKalle Valo ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); 3307e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3308e705c121SKalle Valo 3309e705c121SKalle Valo return ret; 3310e705c121SKalle Valo } 3311e705c121SKalle Valo 3312e705c121SKalle Valo static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 3313e705c121SKalle Valo struct ieee80211_vif *vif, 3314e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx, 3315e705c121SKalle Valo bool switching_chanctx) 3316e705c121SKalle Valo { 3317e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3318e705c121SKalle Valo struct ieee80211_vif *disabled_vif = NULL; 3319e705c121SKalle Valo 3320e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3321e705c121SKalle Valo 3322e705c121SKalle Valo iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); 3323e705c121SKalle Valo 3324e705c121SKalle Valo switch (vif->type) { 3325e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 3326e705c121SKalle Valo goto out; 3327e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 3328e705c121SKalle Valo mvmvif->monitor_active = false; 3329e705c121SKalle Valo mvmvif->ps_disabled = false; 33300e39eb03SChaya Rachel Ivgi iwl_mvm_rm_snif_sta(mvm, vif); 3331e705c121SKalle Valo break; 3332e705c121SKalle Valo case NL80211_IFTYPE_AP: 3333e705c121SKalle Valo /* This part is triggered only during CSA */ 3334e705c121SKalle Valo if (!switching_chanctx || !mvmvif->ap_ibss_active) 3335e705c121SKalle Valo goto out; 3336e705c121SKalle Valo 3337e705c121SKalle Valo mvmvif->csa_countdown = false; 3338e705c121SKalle Valo 3339e705c121SKalle Valo /* Set CS bit on all the stations */ 3340e705c121SKalle Valo iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 3341e705c121SKalle Valo 3342e705c121SKalle Valo /* Save blocked iface, the timeout is set on the next beacon */ 3343e705c121SKalle Valo rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 3344e705c121SKalle Valo 3345e705c121SKalle Valo mvmvif->ap_ibss_active = false; 3346e705c121SKalle Valo break; 3347e705c121SKalle Valo case NL80211_IFTYPE_STATION: 3348e705c121SKalle Valo if (!switching_chanctx) 3349e705c121SKalle Valo break; 3350e705c121SKalle Valo 3351e705c121SKalle Valo disabled_vif = vif; 3352e705c121SKalle Valo 3353e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 3354e705c121SKalle Valo break; 3355e705c121SKalle Valo default: 3356e705c121SKalle Valo break; 3357e705c121SKalle Valo } 3358e705c121SKalle Valo 3359e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, disabled_vif); 3360e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 3361e705c121SKalle Valo 3362e705c121SKalle Valo out: 3363e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 3364e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 3365e705c121SKalle Valo } 3366e705c121SKalle Valo 3367e705c121SKalle Valo static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 3368e705c121SKalle Valo struct ieee80211_vif *vif, 3369e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3370e705c121SKalle Valo { 3371e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3372e705c121SKalle Valo 3373e705c121SKalle Valo mutex_lock(&mvm->mutex); 3374e705c121SKalle Valo __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); 3375e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3376e705c121SKalle Valo } 3377e705c121SKalle Valo 3378e705c121SKalle Valo static int 3379e705c121SKalle Valo iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 3380e705c121SKalle Valo struct ieee80211_vif_chanctx_switch *vifs) 3381e705c121SKalle Valo { 3382e705c121SKalle Valo int ret; 3383e705c121SKalle Valo 3384e705c121SKalle Valo mutex_lock(&mvm->mutex); 3385e705c121SKalle Valo __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 3386e705c121SKalle Valo __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 3387e705c121SKalle Valo 3388e705c121SKalle Valo ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 3389e705c121SKalle Valo if (ret) { 3390e705c121SKalle Valo IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 3391e705c121SKalle Valo goto out_reassign; 3392e705c121SKalle Valo } 3393e705c121SKalle Valo 3394e705c121SKalle Valo ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 3395e705c121SKalle Valo true); 3396e705c121SKalle Valo if (ret) { 3397e705c121SKalle Valo IWL_ERR(mvm, 3398e705c121SKalle Valo "failed to assign new_ctx during channel switch\n"); 3399e705c121SKalle Valo goto out_remove; 3400e705c121SKalle Valo } 3401e705c121SKalle Valo 3402e705c121SKalle Valo /* we don't support TDLS during DCM - can be caused by channel switch */ 3403e705c121SKalle Valo if (iwl_mvm_phy_ctx_count(mvm) > 1) 3404e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 3405e705c121SKalle Valo 3406e705c121SKalle Valo goto out; 3407e705c121SKalle Valo 3408e705c121SKalle Valo out_remove: 3409e705c121SKalle Valo __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 3410e705c121SKalle Valo 3411e705c121SKalle Valo out_reassign: 3412e705c121SKalle Valo if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 3413e705c121SKalle Valo IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 3414e705c121SKalle Valo goto out_restart; 3415e705c121SKalle Valo } 3416e705c121SKalle Valo 3417e705c121SKalle Valo if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 3418e705c121SKalle Valo true)) { 3419e705c121SKalle Valo IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 3420e705c121SKalle Valo goto out_restart; 3421e705c121SKalle Valo } 3422e705c121SKalle Valo 3423e705c121SKalle Valo goto out; 3424e705c121SKalle Valo 3425e705c121SKalle Valo out_restart: 3426e705c121SKalle Valo /* things keep failing, better restart the hw */ 3427e705c121SKalle Valo iwl_mvm_nic_restart(mvm, false); 3428e705c121SKalle Valo 3429e705c121SKalle Valo out: 3430e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3431e705c121SKalle Valo 3432e705c121SKalle Valo return ret; 3433e705c121SKalle Valo } 3434e705c121SKalle Valo 3435e705c121SKalle Valo static int 3436e705c121SKalle Valo iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 3437e705c121SKalle Valo struct ieee80211_vif_chanctx_switch *vifs) 3438e705c121SKalle Valo { 3439e705c121SKalle Valo int ret; 3440e705c121SKalle Valo 3441e705c121SKalle Valo mutex_lock(&mvm->mutex); 3442e705c121SKalle Valo __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 3443e705c121SKalle Valo 3444e705c121SKalle Valo ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 3445e705c121SKalle Valo true); 3446e705c121SKalle Valo if (ret) { 3447e705c121SKalle Valo IWL_ERR(mvm, 3448e705c121SKalle Valo "failed to assign new_ctx during channel switch\n"); 3449e705c121SKalle Valo goto out_reassign; 3450e705c121SKalle Valo } 3451e705c121SKalle Valo 3452e705c121SKalle Valo goto out; 3453e705c121SKalle Valo 3454e705c121SKalle Valo out_reassign: 3455e705c121SKalle Valo if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 3456e705c121SKalle Valo true)) { 3457e705c121SKalle Valo IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 3458e705c121SKalle Valo goto out_restart; 3459e705c121SKalle Valo } 3460e705c121SKalle Valo 3461e705c121SKalle Valo goto out; 3462e705c121SKalle Valo 3463e705c121SKalle Valo out_restart: 3464e705c121SKalle Valo /* things keep failing, better restart the hw */ 3465e705c121SKalle Valo iwl_mvm_nic_restart(mvm, false); 3466e705c121SKalle Valo 3467e705c121SKalle Valo out: 3468e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3469e705c121SKalle Valo 3470e705c121SKalle Valo return ret; 3471e705c121SKalle Valo } 3472e705c121SKalle Valo 3473e705c121SKalle Valo static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 3474e705c121SKalle Valo struct ieee80211_vif_chanctx_switch *vifs, 3475e705c121SKalle Valo int n_vifs, 3476e705c121SKalle Valo enum ieee80211_chanctx_switch_mode mode) 3477e705c121SKalle Valo { 3478e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3479e705c121SKalle Valo int ret; 3480e705c121SKalle Valo 3481e705c121SKalle Valo /* we only support a single-vif right now */ 3482e705c121SKalle Valo if (n_vifs > 1) 3483e705c121SKalle Valo return -EOPNOTSUPP; 3484e705c121SKalle Valo 3485e705c121SKalle Valo switch (mode) { 3486e705c121SKalle Valo case CHANCTX_SWMODE_SWAP_CONTEXTS: 3487e705c121SKalle Valo ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); 3488e705c121SKalle Valo break; 3489e705c121SKalle Valo case CHANCTX_SWMODE_REASSIGN_VIF: 3490e705c121SKalle Valo ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); 3491e705c121SKalle Valo break; 3492e705c121SKalle Valo default: 3493e705c121SKalle Valo ret = -EOPNOTSUPP; 3494e705c121SKalle Valo break; 3495e705c121SKalle Valo } 3496e705c121SKalle Valo 3497e705c121SKalle Valo return ret; 3498e705c121SKalle Valo } 3499e705c121SKalle Valo 3500e705c121SKalle Valo static int iwl_mvm_set_tim(struct ieee80211_hw *hw, 3501e705c121SKalle Valo struct ieee80211_sta *sta, 3502e705c121SKalle Valo bool set) 3503e705c121SKalle Valo { 3504e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3505e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3506e705c121SKalle Valo 3507e705c121SKalle Valo if (!mvm_sta || !mvm_sta->vif) { 3508e705c121SKalle Valo IWL_ERR(mvm, "Station is not associated to a vif\n"); 3509e705c121SKalle Valo return -EINVAL; 3510e705c121SKalle Valo } 3511e705c121SKalle Valo 3512e705c121SKalle Valo return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); 3513e705c121SKalle Valo } 3514e705c121SKalle Valo 3515e705c121SKalle Valo #ifdef CONFIG_NL80211_TESTMODE 3516e705c121SKalle Valo static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 3517e705c121SKalle Valo [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 3518e705c121SKalle Valo [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 3519e705c121SKalle Valo [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 3520e705c121SKalle Valo }; 3521e705c121SKalle Valo 3522e705c121SKalle Valo static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 3523e705c121SKalle Valo struct ieee80211_vif *vif, 3524e705c121SKalle Valo void *data, int len) 3525e705c121SKalle Valo { 3526e705c121SKalle Valo struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 3527e705c121SKalle Valo int err; 3528e705c121SKalle Valo u32 noa_duration; 3529e705c121SKalle Valo 3530e705c121SKalle Valo err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy); 3531e705c121SKalle Valo if (err) 3532e705c121SKalle Valo return err; 3533e705c121SKalle Valo 3534e705c121SKalle Valo if (!tb[IWL_MVM_TM_ATTR_CMD]) 3535e705c121SKalle Valo return -EINVAL; 3536e705c121SKalle Valo 3537e705c121SKalle Valo switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 3538e705c121SKalle Valo case IWL_MVM_TM_CMD_SET_NOA: 3539e705c121SKalle Valo if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 3540e705c121SKalle Valo !vif->bss_conf.enable_beacon || 3541e705c121SKalle Valo !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 3542e705c121SKalle Valo return -EINVAL; 3543e705c121SKalle Valo 3544e705c121SKalle Valo noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 3545e705c121SKalle Valo if (noa_duration >= vif->bss_conf.beacon_int) 3546e705c121SKalle Valo return -EINVAL; 3547e705c121SKalle Valo 3548e705c121SKalle Valo mvm->noa_duration = noa_duration; 3549e705c121SKalle Valo mvm->noa_vif = vif; 3550e705c121SKalle Valo 3551e705c121SKalle Valo return iwl_mvm_update_quotas(mvm, false, NULL); 3552e705c121SKalle Valo case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 3553e705c121SKalle Valo /* must be associated client vif - ignore authorized */ 3554e705c121SKalle Valo if (!vif || vif->type != NL80211_IFTYPE_STATION || 3555e705c121SKalle Valo !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || 3556e705c121SKalle Valo !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 3557e705c121SKalle Valo return -EINVAL; 3558e705c121SKalle Valo 3559e705c121SKalle Valo if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 3560e705c121SKalle Valo return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 3561e705c121SKalle Valo return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3562e705c121SKalle Valo } 3563e705c121SKalle Valo 3564e705c121SKalle Valo return -EOPNOTSUPP; 3565e705c121SKalle Valo } 3566e705c121SKalle Valo 3567e705c121SKalle Valo static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 3568e705c121SKalle Valo struct ieee80211_vif *vif, 3569e705c121SKalle Valo void *data, int len) 3570e705c121SKalle Valo { 3571e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3572e705c121SKalle Valo int err; 3573e705c121SKalle Valo 3574e705c121SKalle Valo mutex_lock(&mvm->mutex); 3575e705c121SKalle Valo err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 3576e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3577e705c121SKalle Valo 3578e705c121SKalle Valo return err; 3579e705c121SKalle Valo } 3580e705c121SKalle Valo #endif 3581e705c121SKalle Valo 3582e705c121SKalle Valo static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, 3583e705c121SKalle Valo struct ieee80211_vif *vif, 3584e705c121SKalle Valo struct ieee80211_channel_switch *chsw) 3585e705c121SKalle Valo { 3586e705c121SKalle Valo /* By implementing this operation, we prevent mac80211 from 3587e705c121SKalle Valo * starting its own channel switch timer, so that we can call 3588e705c121SKalle Valo * ieee80211_chswitch_done() ourselves at the right time 3589e705c121SKalle Valo * (which is when the absence time event starts). 3590e705c121SKalle Valo */ 3591e705c121SKalle Valo 3592e705c121SKalle Valo IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 3593e705c121SKalle Valo "dummy channel switch op\n"); 3594e705c121SKalle Valo } 3595e705c121SKalle Valo 3596e705c121SKalle Valo static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 3597e705c121SKalle Valo struct ieee80211_vif *vif, 3598e705c121SKalle Valo struct ieee80211_channel_switch *chsw) 3599e705c121SKalle Valo { 3600e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3601e705c121SKalle Valo struct ieee80211_vif *csa_vif; 3602e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3603e705c121SKalle Valo u32 apply_time; 3604e705c121SKalle Valo int ret; 3605e705c121SKalle Valo 3606e705c121SKalle Valo mutex_lock(&mvm->mutex); 3607e705c121SKalle Valo 3608e705c121SKalle Valo mvmvif->csa_failed = false; 3609e705c121SKalle Valo 3610e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 3611e705c121SKalle Valo chsw->chandef.center_freq1); 3612e705c121SKalle Valo 3613e705c121SKalle Valo iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH); 3614e705c121SKalle Valo 3615e705c121SKalle Valo switch (vif->type) { 3616e705c121SKalle Valo case NL80211_IFTYPE_AP: 3617e705c121SKalle Valo csa_vif = 3618e705c121SKalle Valo rcu_dereference_protected(mvm->csa_vif, 3619e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3620e705c121SKalle Valo if (WARN_ONCE(csa_vif && csa_vif->csa_active, 3621e705c121SKalle Valo "Another CSA is already in progress")) { 3622e705c121SKalle Valo ret = -EBUSY; 3623e705c121SKalle Valo goto out_unlock; 3624e705c121SKalle Valo } 3625e705c121SKalle Valo 3626e705c121SKalle Valo rcu_assign_pointer(mvm->csa_vif, vif); 3627e705c121SKalle Valo 3628e705c121SKalle Valo if (WARN_ONCE(mvmvif->csa_countdown, 3629e705c121SKalle Valo "Previous CSA countdown didn't complete")) { 3630e705c121SKalle Valo ret = -EBUSY; 3631e705c121SKalle Valo goto out_unlock; 3632e705c121SKalle Valo } 3633e705c121SKalle Valo 3634e705c121SKalle Valo break; 3635e705c121SKalle Valo case NL80211_IFTYPE_STATION: 363603098268SAviya Erenfeld if (mvmvif->lqm_active) 363703098268SAviya Erenfeld iwl_mvm_send_lqm_cmd(vif, 363803098268SAviya Erenfeld LQM_CMD_OPERATION_STOP_MEASUREMENT, 363903098268SAviya Erenfeld 0, 0); 364003098268SAviya Erenfeld 3641e705c121SKalle Valo /* Schedule the time event to a bit before beacon 1, 3642e705c121SKalle Valo * to make sure we're in the new channel when the 3643e705c121SKalle Valo * GO/AP arrives. 3644e705c121SKalle Valo */ 3645e705c121SKalle Valo apply_time = chsw->device_timestamp + 3646e705c121SKalle Valo ((vif->bss_conf.beacon_int * (chsw->count - 1) - 3647e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 3648e705c121SKalle Valo 3649e705c121SKalle Valo if (chsw->block_tx) 3650e705c121SKalle Valo iwl_mvm_csa_client_absent(mvm, vif); 3651e705c121SKalle Valo 3652e705c121SKalle Valo iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 3653e705c121SKalle Valo apply_time); 3654e705c121SKalle Valo if (mvmvif->bf_data.bf_enabled) { 3655e705c121SKalle Valo ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3656e705c121SKalle Valo if (ret) 3657e705c121SKalle Valo goto out_unlock; 3658e705c121SKalle Valo } 3659e705c121SKalle Valo 3660e705c121SKalle Valo break; 3661e705c121SKalle Valo default: 3662e705c121SKalle Valo break; 3663e705c121SKalle Valo } 3664e705c121SKalle Valo 3665e705c121SKalle Valo mvmvif->ps_disabled = true; 3666e705c121SKalle Valo 3667e705c121SKalle Valo ret = iwl_mvm_power_update_ps(mvm); 3668e705c121SKalle Valo if (ret) 3669e705c121SKalle Valo goto out_unlock; 3670e705c121SKalle Valo 3671e705c121SKalle Valo /* we won't be on this channel any longer */ 3672e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 3673e705c121SKalle Valo 3674e705c121SKalle Valo out_unlock: 3675e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3676e705c121SKalle Valo 3677e705c121SKalle Valo return ret; 3678e705c121SKalle Valo } 3679e705c121SKalle Valo 3680e705c121SKalle Valo static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 3681e705c121SKalle Valo struct ieee80211_vif *vif) 3682e705c121SKalle Valo { 3683e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3684e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3685e705c121SKalle Valo int ret; 3686e705c121SKalle Valo 3687e705c121SKalle Valo mutex_lock(&mvm->mutex); 3688e705c121SKalle Valo 3689e705c121SKalle Valo if (mvmvif->csa_failed) { 3690e705c121SKalle Valo mvmvif->csa_failed = false; 3691e705c121SKalle Valo ret = -EIO; 3692e705c121SKalle Valo goto out_unlock; 3693e705c121SKalle Valo } 3694e705c121SKalle Valo 3695e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) { 3696e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 3697e705c121SKalle Valo 3698e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 3699e705c121SKalle Valo mvmvif->ap_sta_id); 3700e705c121SKalle Valo 3701e705c121SKalle Valo if (WARN_ON(!mvmsta)) { 3702e705c121SKalle Valo ret = -EIO; 3703e705c121SKalle Valo goto out_unlock; 3704e705c121SKalle Valo } 3705e705c121SKalle Valo 3706e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 3707e705c121SKalle Valo 3708e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3709e705c121SKalle Valo 3710e705c121SKalle Valo ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 3711e705c121SKalle Valo if (ret) 3712e705c121SKalle Valo goto out_unlock; 3713e705c121SKalle Valo 3714e705c121SKalle Valo iwl_mvm_stop_session_protection(mvm, vif); 3715e705c121SKalle Valo } 3716e705c121SKalle Valo 3717e705c121SKalle Valo mvmvif->ps_disabled = false; 3718e705c121SKalle Valo 3719e705c121SKalle Valo ret = iwl_mvm_power_update_ps(mvm); 3720e705c121SKalle Valo 3721e705c121SKalle Valo out_unlock: 3722e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3723e705c121SKalle Valo 3724e705c121SKalle Valo return ret; 3725e705c121SKalle Valo } 3726e705c121SKalle Valo 3727e705c121SKalle Valo static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, 3728e705c121SKalle Valo struct ieee80211_vif *vif, u32 queues, bool drop) 3729e705c121SKalle Valo { 3730e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3731e705c121SKalle Valo struct iwl_mvm_vif *mvmvif; 3732e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 3733e705c121SKalle Valo struct ieee80211_sta *sta; 3734e705c121SKalle Valo int i; 3735e705c121SKalle Valo u32 msk = 0; 3736e705c121SKalle Valo 3737e705c121SKalle Valo if (!vif || vif->type != NL80211_IFTYPE_STATION) 3738e705c121SKalle Valo return; 3739e705c121SKalle Valo 3740e705c121SKalle Valo mutex_lock(&mvm->mutex); 3741e705c121SKalle Valo mvmvif = iwl_mvm_vif_from_mac80211(vif); 3742e705c121SKalle Valo 3743e705c121SKalle Valo /* flush the AP-station and all TDLS peers */ 3744e705c121SKalle Valo for (i = 0; i < IWL_MVM_STATION_COUNT; i++) { 3745e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 3746e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3747e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) 3748e705c121SKalle Valo continue; 3749e705c121SKalle Valo 3750e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_mac80211(sta); 3751e705c121SKalle Valo if (mvmsta->vif != vif) 3752e705c121SKalle Valo continue; 3753e705c121SKalle Valo 3754e705c121SKalle Valo /* make sure only TDLS peers or the AP are flushed */ 3755e705c121SKalle Valo WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); 3756e705c121SKalle Valo 3757e705c121SKalle Valo msk |= mvmsta->tfd_queue_msk; 3758e705c121SKalle Valo } 3759e705c121SKalle Valo 3760e705c121SKalle Valo if (drop) { 3761e705c121SKalle Valo if (iwl_mvm_flush_tx_path(mvm, msk, 0)) 3762e705c121SKalle Valo IWL_ERR(mvm, "flush request fail\n"); 3763e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3764e705c121SKalle Valo } else { 3765e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3766e705c121SKalle Valo 3767e705c121SKalle Valo /* this can take a while, and we may need/want other operations 3768e705c121SKalle Valo * to succeed while doing this, so do it without the mutex held 3769e705c121SKalle Valo */ 3770e705c121SKalle Valo iwl_trans_wait_tx_queue_empty(mvm->trans, msk); 3771e705c121SKalle Valo } 3772e705c121SKalle Valo } 3773e705c121SKalle Valo 3774e705c121SKalle Valo static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 3775e705c121SKalle Valo struct survey_info *survey) 3776e705c121SKalle Valo { 3777e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3778e705c121SKalle Valo int ret; 3779e705c121SKalle Valo 3780e705c121SKalle Valo memset(survey, 0, sizeof(*survey)); 3781e705c121SKalle Valo 3782e705c121SKalle Valo /* only support global statistics right now */ 3783e705c121SKalle Valo if (idx != 0) 3784e705c121SKalle Valo return -ENOENT; 3785e705c121SKalle Valo 3786e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 3787e705c121SKalle Valo IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 3788e705c121SKalle Valo return -ENOENT; 3789e705c121SKalle Valo 3790e705c121SKalle Valo mutex_lock(&mvm->mutex); 3791e705c121SKalle Valo 3792e705c121SKalle Valo if (mvm->ucode_loaded) { 3793e705c121SKalle Valo ret = iwl_mvm_request_statistics(mvm, false); 3794e705c121SKalle Valo if (ret) 3795e705c121SKalle Valo goto out; 3796e705c121SKalle Valo } 3797e705c121SKalle Valo 3798e705c121SKalle Valo survey->filled = SURVEY_INFO_TIME | 3799e705c121SKalle Valo SURVEY_INFO_TIME_RX | 3800e705c121SKalle Valo SURVEY_INFO_TIME_TX | 3801e705c121SKalle Valo SURVEY_INFO_TIME_SCAN; 3802e705c121SKalle Valo survey->time = mvm->accu_radio_stats.on_time_rf + 3803e705c121SKalle Valo mvm->radio_stats.on_time_rf; 3804e705c121SKalle Valo do_div(survey->time, USEC_PER_MSEC); 3805e705c121SKalle Valo 3806e705c121SKalle Valo survey->time_rx = mvm->accu_radio_stats.rx_time + 3807e705c121SKalle Valo mvm->radio_stats.rx_time; 3808e705c121SKalle Valo do_div(survey->time_rx, USEC_PER_MSEC); 3809e705c121SKalle Valo 3810e705c121SKalle Valo survey->time_tx = mvm->accu_radio_stats.tx_time + 3811e705c121SKalle Valo mvm->radio_stats.tx_time; 3812e705c121SKalle Valo do_div(survey->time_tx, USEC_PER_MSEC); 3813e705c121SKalle Valo 3814e705c121SKalle Valo survey->time_scan = mvm->accu_radio_stats.on_time_scan + 3815e705c121SKalle Valo mvm->radio_stats.on_time_scan; 3816e705c121SKalle Valo do_div(survey->time_scan, USEC_PER_MSEC); 3817e705c121SKalle Valo 3818e705c121SKalle Valo ret = 0; 3819e705c121SKalle Valo out: 3820e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3821e705c121SKalle Valo return ret; 3822e705c121SKalle Valo } 3823e705c121SKalle Valo 3824e705c121SKalle Valo static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 3825e705c121SKalle Valo struct ieee80211_vif *vif, 3826e705c121SKalle Valo struct ieee80211_sta *sta, 3827e705c121SKalle Valo struct station_info *sinfo) 3828e705c121SKalle Valo { 3829e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3830e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3831e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3832e705c121SKalle Valo 3833e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 3834e705c121SKalle Valo IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 3835e705c121SKalle Valo return; 3836e705c121SKalle Valo 3837e705c121SKalle Valo /* if beacon filtering isn't on mac80211 does it anyway */ 3838e705c121SKalle Valo if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 3839e705c121SKalle Valo return; 3840e705c121SKalle Valo 3841e705c121SKalle Valo if (!vif->bss_conf.assoc) 3842e705c121SKalle Valo return; 3843e705c121SKalle Valo 3844e705c121SKalle Valo mutex_lock(&mvm->mutex); 3845e705c121SKalle Valo 3846e705c121SKalle Valo if (mvmvif->ap_sta_id != mvmsta->sta_id) 3847e705c121SKalle Valo goto unlock; 3848e705c121SKalle Valo 3849e705c121SKalle Valo if (iwl_mvm_request_statistics(mvm, false)) 3850e705c121SKalle Valo goto unlock; 3851e705c121SKalle Valo 3852e705c121SKalle Valo sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + 3853e705c121SKalle Valo mvmvif->beacon_stats.accu_num_beacons; 3854e705c121SKalle Valo sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX); 3855e705c121SKalle Valo if (mvmvif->beacon_stats.avg_signal) { 3856e705c121SKalle Valo /* firmware only reports a value after RXing a few beacons */ 3857e705c121SKalle Valo sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; 3858e705c121SKalle Valo sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 3859e705c121SKalle Valo } 3860e705c121SKalle Valo unlock: 3861e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3862e705c121SKalle Valo } 3863e705c121SKalle Valo 3864e705c121SKalle Valo static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 3865e705c121SKalle Valo struct ieee80211_vif *vif, 3866e705c121SKalle Valo const struct ieee80211_event *event) 3867e705c121SKalle Valo { 3868e705c121SKalle Valo #define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \ 3869e705c121SKalle Valo do { \ 3870e705c121SKalle Valo if ((_cnt) && --(_cnt)) \ 3871e705c121SKalle Valo break; \ 3872e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\ 3873e705c121SKalle Valo } while (0) 3874e705c121SKalle Valo 3875e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 3876e705c121SKalle Valo struct iwl_fw_dbg_trigger_mlme *trig_mlme; 3877e705c121SKalle Valo 3878e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME)) 3879e705c121SKalle Valo return; 3880e705c121SKalle Valo 3881e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME); 3882e705c121SKalle Valo trig_mlme = (void *)trig->data; 3883e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 3884e705c121SKalle Valo return; 3885e705c121SKalle Valo 3886e705c121SKalle Valo if (event->u.mlme.data == ASSOC_EVENT) { 3887e705c121SKalle Valo if (event->u.mlme.status == MLME_DENIED) 3888e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3889e705c121SKalle Valo trig_mlme->stop_assoc_denied, 3890e705c121SKalle Valo "DENIED ASSOC: reason %d", 3891e705c121SKalle Valo event->u.mlme.reason); 3892e705c121SKalle Valo else if (event->u.mlme.status == MLME_TIMEOUT) 3893e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3894e705c121SKalle Valo trig_mlme->stop_assoc_timeout, 3895e705c121SKalle Valo "ASSOC TIMEOUT"); 3896e705c121SKalle Valo } else if (event->u.mlme.data == AUTH_EVENT) { 3897e705c121SKalle Valo if (event->u.mlme.status == MLME_DENIED) 3898e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3899e705c121SKalle Valo trig_mlme->stop_auth_denied, 3900e705c121SKalle Valo "DENIED AUTH: reason %d", 3901e705c121SKalle Valo event->u.mlme.reason); 3902e705c121SKalle Valo else if (event->u.mlme.status == MLME_TIMEOUT) 3903e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3904e705c121SKalle Valo trig_mlme->stop_auth_timeout, 3905e705c121SKalle Valo "AUTH TIMEOUT"); 3906e705c121SKalle Valo } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 3907e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3908e705c121SKalle Valo trig_mlme->stop_rx_deauth, 3909e705c121SKalle Valo "DEAUTH RX %d", event->u.mlme.reason); 3910e705c121SKalle Valo } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 3911e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3912e705c121SKalle Valo trig_mlme->stop_tx_deauth, 3913e705c121SKalle Valo "DEAUTH TX %d", event->u.mlme.reason); 3914e705c121SKalle Valo } 3915e705c121SKalle Valo #undef CHECK_MLME_TRIGGER 3916e705c121SKalle Valo } 3917e705c121SKalle Valo 3918e705c121SKalle Valo static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 3919e705c121SKalle Valo struct ieee80211_vif *vif, 3920e705c121SKalle Valo const struct ieee80211_event *event) 3921e705c121SKalle Valo { 3922e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 3923e705c121SKalle Valo struct iwl_fw_dbg_trigger_ba *ba_trig; 3924e705c121SKalle Valo 3925e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) 3926e705c121SKalle Valo return; 3927e705c121SKalle Valo 3928e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); 3929e705c121SKalle Valo ba_trig = (void *)trig->data; 3930e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 3931e705c121SKalle Valo return; 3932e705c121SKalle Valo 3933e705c121SKalle Valo if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 3934e705c121SKalle Valo return; 3935e705c121SKalle Valo 3936e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(mvm, trig, 3937e705c121SKalle Valo "BAR received from %pM, tid %d, ssn %d", 3938e705c121SKalle Valo event->u.ba.sta->addr, event->u.ba.tid, 3939e705c121SKalle Valo event->u.ba.ssn); 3940e705c121SKalle Valo } 3941e705c121SKalle Valo 3942e705c121SKalle Valo static void 3943e705c121SKalle Valo iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm, 3944e705c121SKalle Valo struct ieee80211_vif *vif, 3945e705c121SKalle Valo const struct ieee80211_event *event) 3946e705c121SKalle Valo { 3947e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 3948e705c121SKalle Valo struct iwl_fw_dbg_trigger_ba *ba_trig; 3949e705c121SKalle Valo 3950e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) 3951e705c121SKalle Valo return; 3952e705c121SKalle Valo 3953e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); 3954e705c121SKalle Valo ba_trig = (void *)trig->data; 3955e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 3956e705c121SKalle Valo return; 3957e705c121SKalle Valo 3958e705c121SKalle Valo if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid))) 3959e705c121SKalle Valo return; 3960e705c121SKalle Valo 3961e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(mvm, trig, 3962e705c121SKalle Valo "Frame from %pM timed out, tid %d", 3963e705c121SKalle Valo event->u.ba.sta->addr, event->u.ba.tid); 3964e705c121SKalle Valo } 3965e705c121SKalle Valo 3966e705c121SKalle Valo static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 3967e705c121SKalle Valo struct ieee80211_vif *vif, 3968e705c121SKalle Valo const struct ieee80211_event *event) 3969e705c121SKalle Valo { 3970e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3971e705c121SKalle Valo 3972e705c121SKalle Valo switch (event->type) { 3973e705c121SKalle Valo case MLME_EVENT: 3974e705c121SKalle Valo iwl_mvm_event_mlme_callback(mvm, vif, event); 3975e705c121SKalle Valo break; 3976e705c121SKalle Valo case BAR_RX_EVENT: 3977e705c121SKalle Valo iwl_mvm_event_bar_rx_callback(mvm, vif, event); 3978e705c121SKalle Valo break; 3979e705c121SKalle Valo case BA_FRAME_TIMEOUT: 3980e705c121SKalle Valo iwl_mvm_event_frame_timeout_callback(mvm, vif, event); 3981e705c121SKalle Valo break; 3982e705c121SKalle Valo default: 3983e705c121SKalle Valo break; 3984e705c121SKalle Valo } 3985e705c121SKalle Valo } 3986e705c121SKalle Valo 3987e705c121SKalle Valo const struct ieee80211_ops iwl_mvm_hw_ops = { 3988e705c121SKalle Valo .tx = iwl_mvm_mac_tx, 3989e705c121SKalle Valo .ampdu_action = iwl_mvm_mac_ampdu_action, 3990e705c121SKalle Valo .start = iwl_mvm_mac_start, 3991e705c121SKalle Valo .reconfig_complete = iwl_mvm_mac_reconfig_complete, 3992e705c121SKalle Valo .stop = iwl_mvm_mac_stop, 3993e705c121SKalle Valo .add_interface = iwl_mvm_mac_add_interface, 3994e705c121SKalle Valo .remove_interface = iwl_mvm_mac_remove_interface, 3995e705c121SKalle Valo .config = iwl_mvm_mac_config, 3996e705c121SKalle Valo .prepare_multicast = iwl_mvm_prepare_multicast, 3997e705c121SKalle Valo .configure_filter = iwl_mvm_configure_filter, 3998e705c121SKalle Valo .config_iface_filter = iwl_mvm_config_iface_filter, 3999e705c121SKalle Valo .bss_info_changed = iwl_mvm_bss_info_changed, 4000e705c121SKalle Valo .hw_scan = iwl_mvm_mac_hw_scan, 4001e705c121SKalle Valo .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 4002e705c121SKalle Valo .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 4003e705c121SKalle Valo .sta_state = iwl_mvm_mac_sta_state, 4004e705c121SKalle Valo .sta_notify = iwl_mvm_mac_sta_notify, 4005e705c121SKalle Valo .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 4006e705c121SKalle Valo .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 4007e705c121SKalle Valo .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 4008e705c121SKalle Valo .sta_rc_update = iwl_mvm_sta_rc_update, 4009e705c121SKalle Valo .conf_tx = iwl_mvm_mac_conf_tx, 4010e705c121SKalle Valo .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 4011e705c121SKalle Valo .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 4012e705c121SKalle Valo .flush = iwl_mvm_mac_flush, 4013e705c121SKalle Valo .sched_scan_start = iwl_mvm_mac_sched_scan_start, 4014e705c121SKalle Valo .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 4015e705c121SKalle Valo .set_key = iwl_mvm_mac_set_key, 4016e705c121SKalle Valo .update_tkip_key = iwl_mvm_mac_update_tkip_key, 4017e705c121SKalle Valo .remain_on_channel = iwl_mvm_roc, 4018e705c121SKalle Valo .cancel_remain_on_channel = iwl_mvm_cancel_roc, 4019e705c121SKalle Valo .add_chanctx = iwl_mvm_add_chanctx, 4020e705c121SKalle Valo .remove_chanctx = iwl_mvm_remove_chanctx, 4021e705c121SKalle Valo .change_chanctx = iwl_mvm_change_chanctx, 4022e705c121SKalle Valo .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 4023e705c121SKalle Valo .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 4024e705c121SKalle Valo .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 4025e705c121SKalle Valo 4026e705c121SKalle Valo .start_ap = iwl_mvm_start_ap_ibss, 4027e705c121SKalle Valo .stop_ap = iwl_mvm_stop_ap_ibss, 4028e705c121SKalle Valo .join_ibss = iwl_mvm_start_ap_ibss, 4029e705c121SKalle Valo .leave_ibss = iwl_mvm_stop_ap_ibss, 4030e705c121SKalle Valo 4031e705c121SKalle Valo .set_tim = iwl_mvm_set_tim, 4032e705c121SKalle Valo 4033e705c121SKalle Valo .channel_switch = iwl_mvm_channel_switch, 4034e705c121SKalle Valo .pre_channel_switch = iwl_mvm_pre_channel_switch, 4035e705c121SKalle Valo .post_channel_switch = iwl_mvm_post_channel_switch, 4036e705c121SKalle Valo 4037e705c121SKalle Valo .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 4038e705c121SKalle Valo .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 4039e705c121SKalle Valo .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 4040e705c121SKalle Valo 4041e705c121SKalle Valo .event_callback = iwl_mvm_mac_event_callback, 4042e705c121SKalle Valo 4043e705c121SKalle Valo CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 4044e705c121SKalle Valo 4045e705c121SKalle Valo #ifdef CONFIG_PM_SLEEP 4046e705c121SKalle Valo /* look at d3.c */ 4047e705c121SKalle Valo .suspend = iwl_mvm_suspend, 4048e705c121SKalle Valo .resume = iwl_mvm_resume, 4049e705c121SKalle Valo .set_wakeup = iwl_mvm_set_wakeup, 4050e705c121SKalle Valo .set_rekey_data = iwl_mvm_set_rekey_data, 4051e705c121SKalle Valo #if IS_ENABLED(CONFIG_IPV6) 4052e705c121SKalle Valo .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 4053e705c121SKalle Valo #endif 4054e705c121SKalle Valo .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 4055e705c121SKalle Valo #endif 4056e705c121SKalle Valo .get_survey = iwl_mvm_mac_get_survey, 4057e705c121SKalle Valo .sta_statistics = iwl_mvm_mac_sta_statistics, 4058e705c121SKalle Valo }; 4059