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 10e705c121SKalle Valo * 11e705c121SKalle Valo * This program is free software; you can redistribute it and/or modify 12e705c121SKalle Valo * it under the terms of version 2 of the GNU General Public License as 13e705c121SKalle Valo * published by the Free Software Foundation. 14e705c121SKalle Valo * 15e705c121SKalle Valo * This program is distributed in the hope that it will be useful, but 16e705c121SKalle Valo * WITHOUT ANY WARRANTY; without even the implied warranty of 17e705c121SKalle Valo * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18e705c121SKalle Valo * General Public License for more details. 19e705c121SKalle Valo * 20e705c121SKalle Valo * You should have received a copy of the GNU General Public License 21e705c121SKalle Valo * along with this program; if not, write to the Free Software 22e705c121SKalle Valo * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 23e705c121SKalle Valo * USA 24e705c121SKalle Valo * 25e705c121SKalle Valo * The full GNU General Public License is included in this distribution 26e705c121SKalle Valo * in the file called COPYING. 27e705c121SKalle Valo * 28e705c121SKalle Valo * Contact Information: 29cb2f8277SEmmanuel Grumbach * Intel Linux Wireless <linuxwifi@intel.com> 30e705c121SKalle Valo * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 31e705c121SKalle Valo * 32e705c121SKalle Valo * BSD LICENSE 33e705c121SKalle Valo * 34e705c121SKalle Valo * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 35e705c121SKalle Valo * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH 36e705c121SKalle Valo * All rights reserved. 37e705c121SKalle Valo * 38e705c121SKalle Valo * Redistribution and use in source and binary forms, with or without 39e705c121SKalle Valo * modification, are permitted provided that the following conditions 40e705c121SKalle Valo * are met: 41e705c121SKalle Valo * 42e705c121SKalle Valo * * Redistributions of source code must retain the above copyright 43e705c121SKalle Valo * notice, this list of conditions and the following disclaimer. 44e705c121SKalle Valo * * Redistributions in binary form must reproduce the above copyright 45e705c121SKalle Valo * notice, this list of conditions and the following disclaimer in 46e705c121SKalle Valo * the documentation and/or other materials provided with the 47e705c121SKalle Valo * distribution. 48e705c121SKalle Valo * * Neither the name Intel Corporation nor the names of its 49e705c121SKalle Valo * contributors may be used to endorse or promote products derived 50e705c121SKalle Valo * from this software without specific prior written permission. 51e705c121SKalle Valo * 52e705c121SKalle Valo * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 53e705c121SKalle Valo * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 54e705c121SKalle Valo * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 55e705c121SKalle Valo * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 56e705c121SKalle Valo * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 57e705c121SKalle Valo * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 58e705c121SKalle Valo * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 59e705c121SKalle Valo * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 60e705c121SKalle Valo * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 61e705c121SKalle Valo * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 62e705c121SKalle Valo * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 63e705c121SKalle Valo * 64e705c121SKalle Valo *****************************************************************************/ 65e705c121SKalle Valo #include <linux/kernel.h> 66e705c121SKalle Valo #include <linux/slab.h> 67e705c121SKalle Valo #include <linux/skbuff.h> 68e705c121SKalle Valo #include <linux/netdevice.h> 69e705c121SKalle Valo #include <linux/etherdevice.h> 70e705c121SKalle Valo #include <linux/ip.h> 71e705c121SKalle Valo #include <linux/if_arp.h> 72e705c121SKalle Valo #include <linux/devcoredump.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-csr.h" 89e705c121SKalle Valo #include "iwl-nvm-parse.h" 902f89a5d7SGolan Ben-Ami #include "fw-dbg.h" 91e705c121SKalle Valo 92e705c121SKalle Valo static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 93e705c121SKalle Valo { 94e705c121SKalle Valo .max = 1, 95e705c121SKalle Valo .types = BIT(NL80211_IFTYPE_STATION), 96e705c121SKalle Valo }, 97e705c121SKalle Valo { 98e705c121SKalle Valo .max = 1, 99e705c121SKalle Valo .types = BIT(NL80211_IFTYPE_AP) | 100e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_CLIENT) | 101e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_GO), 102e705c121SKalle Valo }, 103e705c121SKalle Valo { 104e705c121SKalle Valo .max = 1, 105e705c121SKalle Valo .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 106e705c121SKalle Valo }, 107e705c121SKalle Valo }; 108e705c121SKalle Valo 109e705c121SKalle Valo static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 110e705c121SKalle Valo { 111e705c121SKalle Valo .num_different_channels = 2, 112e705c121SKalle Valo .max_interfaces = 3, 113e705c121SKalle Valo .limits = iwl_mvm_limits, 114e705c121SKalle Valo .n_limits = ARRAY_SIZE(iwl_mvm_limits), 115e705c121SKalle Valo }, 116e705c121SKalle Valo }; 117e705c121SKalle Valo 118e705c121SKalle Valo #ifdef CONFIG_PM_SLEEP 119e705c121SKalle Valo static const struct nl80211_wowlan_tcp_data_token_feature 120e705c121SKalle Valo iwl_mvm_wowlan_tcp_token_feature = { 121e705c121SKalle Valo .min_len = 0, 122e705c121SKalle Valo .max_len = 255, 123e705c121SKalle Valo .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS, 124e705c121SKalle Valo }; 125e705c121SKalle Valo 126e705c121SKalle Valo static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = { 127e705c121SKalle Valo .tok = &iwl_mvm_wowlan_tcp_token_feature, 128e705c121SKalle Valo .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN - 129e705c121SKalle Valo sizeof(struct ethhdr) - 130e705c121SKalle Valo sizeof(struct iphdr) - 131e705c121SKalle Valo sizeof(struct tcphdr), 132e705c121SKalle Valo .data_interval_max = 65535, /* __le16 in API */ 133e705c121SKalle Valo .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN - 134e705c121SKalle Valo sizeof(struct ethhdr) - 135e705c121SKalle Valo sizeof(struct iphdr) - 136e705c121SKalle Valo sizeof(struct tcphdr), 137e705c121SKalle Valo .seq = true, 138e705c121SKalle Valo }; 139e705c121SKalle Valo #endif 140e705c121SKalle Valo 141e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 142e705c121SKalle Valo /* 143e705c121SKalle Valo * Use the reserved field to indicate magic values. 144e705c121SKalle Valo * these values will only be used internally by the driver, 145e705c121SKalle Valo * and won't make it to the fw (reserved will be 0). 146e705c121SKalle Valo * BC_FILTER_MAGIC_IP - configure the val of this attribute to 147e705c121SKalle Valo * be the vif's ip address. in case there is not a single 148e705c121SKalle Valo * ip address (0, or more than 1), this attribute will 149e705c121SKalle Valo * be skipped. 150e705c121SKalle Valo * BC_FILTER_MAGIC_MAC - set the val of this attribute to 151e705c121SKalle Valo * the LSB bytes of the vif's mac address 152e705c121SKalle Valo */ 153e705c121SKalle Valo enum { 154e705c121SKalle Valo BC_FILTER_MAGIC_NONE = 0, 155e705c121SKalle Valo BC_FILTER_MAGIC_IP, 156e705c121SKalle Valo BC_FILTER_MAGIC_MAC, 157e705c121SKalle Valo }; 158e705c121SKalle Valo 159e705c121SKalle Valo static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { 160e705c121SKalle Valo { 161e705c121SKalle Valo /* arp */ 162e705c121SKalle Valo .discard = 0, 163e705c121SKalle Valo .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, 164e705c121SKalle Valo .attrs = { 165e705c121SKalle Valo { 166e705c121SKalle Valo /* frame type - arp, hw type - ethernet */ 167e705c121SKalle Valo .offset_type = 168e705c121SKalle Valo BCAST_FILTER_OFFSET_PAYLOAD_START, 169e705c121SKalle Valo .offset = sizeof(rfc1042_header), 170e705c121SKalle Valo .val = cpu_to_be32(0x08060001), 171e705c121SKalle Valo .mask = cpu_to_be32(0xffffffff), 172e705c121SKalle Valo }, 173e705c121SKalle Valo { 174e705c121SKalle Valo /* arp dest ip */ 175e705c121SKalle Valo .offset_type = 176e705c121SKalle Valo BCAST_FILTER_OFFSET_PAYLOAD_START, 177e705c121SKalle Valo .offset = sizeof(rfc1042_header) + 2 + 178e705c121SKalle Valo sizeof(struct arphdr) + 179e705c121SKalle Valo ETH_ALEN + sizeof(__be32) + 180e705c121SKalle Valo ETH_ALEN, 181e705c121SKalle Valo .mask = cpu_to_be32(0xffffffff), 182e705c121SKalle Valo /* mark it as special field */ 183e705c121SKalle Valo .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), 184e705c121SKalle Valo }, 185e705c121SKalle Valo }, 186e705c121SKalle Valo }, 187e705c121SKalle Valo { 188e705c121SKalle Valo /* dhcp offer bcast */ 189e705c121SKalle Valo .discard = 0, 190e705c121SKalle Valo .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, 191e705c121SKalle Valo .attrs = { 192e705c121SKalle Valo { 193e705c121SKalle Valo /* udp dest port - 68 (bootp client)*/ 194e705c121SKalle Valo .offset_type = BCAST_FILTER_OFFSET_IP_END, 195e705c121SKalle Valo .offset = offsetof(struct udphdr, dest), 196e705c121SKalle Valo .val = cpu_to_be32(0x00440000), 197e705c121SKalle Valo .mask = cpu_to_be32(0xffff0000), 198e705c121SKalle Valo }, 199e705c121SKalle Valo { 200e705c121SKalle Valo /* dhcp - lsb bytes of client hw address */ 201e705c121SKalle Valo .offset_type = BCAST_FILTER_OFFSET_IP_END, 202e705c121SKalle Valo .offset = 38, 203e705c121SKalle Valo .mask = cpu_to_be32(0xffffffff), 204e705c121SKalle Valo /* mark it as special field */ 205e705c121SKalle Valo .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), 206e705c121SKalle Valo }, 207e705c121SKalle Valo }, 208e705c121SKalle Valo }, 209e705c121SKalle Valo /* last filter must be empty */ 210e705c121SKalle Valo {}, 211e705c121SKalle Valo }; 212e705c121SKalle Valo #endif 213e705c121SKalle Valo 214e705c121SKalle Valo void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) 215e705c121SKalle Valo { 216e705c121SKalle Valo if (!iwl_mvm_is_d0i3_supported(mvm)) 217e705c121SKalle Valo return; 218e705c121SKalle Valo 219e705c121SKalle Valo IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type); 220e705c121SKalle Valo spin_lock_bh(&mvm->refs_lock); 221e705c121SKalle Valo mvm->refs[ref_type]++; 222e705c121SKalle Valo spin_unlock_bh(&mvm->refs_lock); 223e705c121SKalle Valo iwl_trans_ref(mvm->trans); 224e705c121SKalle Valo } 225e705c121SKalle Valo 226e705c121SKalle Valo void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) 227e705c121SKalle Valo { 228e705c121SKalle Valo if (!iwl_mvm_is_d0i3_supported(mvm)) 229e705c121SKalle Valo return; 230e705c121SKalle Valo 231e705c121SKalle Valo IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type); 232e705c121SKalle Valo spin_lock_bh(&mvm->refs_lock); 233e705c121SKalle Valo WARN_ON(!mvm->refs[ref_type]--); 234e705c121SKalle Valo spin_unlock_bh(&mvm->refs_lock); 235e705c121SKalle Valo iwl_trans_unref(mvm->trans); 236e705c121SKalle Valo } 237e705c121SKalle Valo 238e705c121SKalle Valo static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm, 239e705c121SKalle Valo enum iwl_mvm_ref_type except_ref) 240e705c121SKalle Valo { 241e705c121SKalle Valo int i, j; 242e705c121SKalle Valo 243e705c121SKalle Valo if (!iwl_mvm_is_d0i3_supported(mvm)) 244e705c121SKalle Valo return; 245e705c121SKalle Valo 246e705c121SKalle Valo spin_lock_bh(&mvm->refs_lock); 247e705c121SKalle Valo for (i = 0; i < IWL_MVM_REF_COUNT; i++) { 248e705c121SKalle Valo if (except_ref == i || !mvm->refs[i]) 249e705c121SKalle Valo continue; 250e705c121SKalle Valo 251e705c121SKalle Valo IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n", 252e705c121SKalle Valo i, mvm->refs[i]); 253e705c121SKalle Valo for (j = 0; j < mvm->refs[i]; j++) 254e705c121SKalle Valo iwl_trans_unref(mvm->trans); 255e705c121SKalle Valo mvm->refs[i] = 0; 256e705c121SKalle Valo } 257e705c121SKalle Valo spin_unlock_bh(&mvm->refs_lock); 258e705c121SKalle Valo } 259e705c121SKalle Valo 260e705c121SKalle Valo bool iwl_mvm_ref_taken(struct iwl_mvm *mvm) 261e705c121SKalle Valo { 262e705c121SKalle Valo int i; 263e705c121SKalle Valo bool taken = false; 264e705c121SKalle Valo 265e705c121SKalle Valo if (!iwl_mvm_is_d0i3_supported(mvm)) 266e705c121SKalle Valo return true; 267e705c121SKalle Valo 268e705c121SKalle Valo spin_lock_bh(&mvm->refs_lock); 269e705c121SKalle Valo for (i = 0; i < IWL_MVM_REF_COUNT; i++) { 270e705c121SKalle Valo if (mvm->refs[i]) { 271e705c121SKalle Valo taken = true; 272e705c121SKalle Valo break; 273e705c121SKalle Valo } 274e705c121SKalle Valo } 275e705c121SKalle Valo spin_unlock_bh(&mvm->refs_lock); 276e705c121SKalle Valo 277e705c121SKalle Valo return taken; 278e705c121SKalle Valo } 279e705c121SKalle Valo 280e705c121SKalle Valo int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) 281e705c121SKalle Valo { 282e705c121SKalle Valo iwl_mvm_ref(mvm, ref_type); 283e705c121SKalle Valo 284e705c121SKalle Valo if (!wait_event_timeout(mvm->d0i3_exit_waitq, 285e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status), 286e705c121SKalle Valo HZ)) { 287e705c121SKalle Valo WARN_ON_ONCE(1); 288e705c121SKalle Valo iwl_mvm_unref(mvm, ref_type); 289e705c121SKalle Valo return -EIO; 290e705c121SKalle Valo } 291e705c121SKalle Valo 292e705c121SKalle Valo return 0; 293e705c121SKalle Valo } 294e705c121SKalle Valo 295e705c121SKalle Valo static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 296e705c121SKalle Valo { 297e705c121SKalle Valo int i; 298e705c121SKalle Valo 299e705c121SKalle Valo memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 300e705c121SKalle Valo for (i = 0; i < NUM_PHY_CTX; i++) { 301e705c121SKalle Valo mvm->phy_ctxts[i].id = i; 302e705c121SKalle Valo mvm->phy_ctxts[i].ref = 0; 303e705c121SKalle Valo } 304e705c121SKalle Valo } 305e705c121SKalle Valo 306e705c121SKalle Valo struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 307e705c121SKalle Valo const char *alpha2, 308e705c121SKalle Valo enum iwl_mcc_source src_id, 309e705c121SKalle Valo bool *changed) 310e705c121SKalle Valo { 311e705c121SKalle Valo struct ieee80211_regdomain *regd = NULL; 312e705c121SKalle Valo struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 313e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 314e705c121SKalle Valo struct iwl_mcc_update_resp *resp; 315e705c121SKalle Valo 316e705c121SKalle Valo IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 317e705c121SKalle Valo 318e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 319e705c121SKalle Valo 320e705c121SKalle Valo resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 321e705c121SKalle Valo if (IS_ERR_OR_NULL(resp)) { 322e705c121SKalle Valo IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 323e705c121SKalle Valo PTR_ERR_OR_ZERO(resp)); 324e705c121SKalle Valo goto out; 325e705c121SKalle Valo } 326e705c121SKalle Valo 327e705c121SKalle Valo if (changed) 328e705c121SKalle Valo *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE); 329e705c121SKalle Valo 330e705c121SKalle Valo regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 331e705c121SKalle Valo __le32_to_cpu(resp->n_channels), 332e705c121SKalle Valo resp->channels, 333e705c121SKalle Valo __le16_to_cpu(resp->mcc)); 334e705c121SKalle Valo /* Store the return source id */ 335e705c121SKalle Valo src_id = resp->source_id; 336e705c121SKalle Valo kfree(resp); 337e705c121SKalle Valo if (IS_ERR_OR_NULL(regd)) { 338e705c121SKalle Valo IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 339e705c121SKalle Valo PTR_ERR_OR_ZERO(regd)); 340e705c121SKalle Valo goto out; 341e705c121SKalle Valo } 342e705c121SKalle Valo 343e705c121SKalle Valo IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 344e705c121SKalle Valo regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 345e705c121SKalle Valo mvm->lar_regdom_set = true; 346e705c121SKalle Valo mvm->mcc_src = src_id; 347e705c121SKalle Valo 348e705c121SKalle Valo out: 349e705c121SKalle Valo return regd; 350e705c121SKalle Valo } 351e705c121SKalle Valo 352e705c121SKalle Valo void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 353e705c121SKalle Valo { 354e705c121SKalle Valo bool changed; 355e705c121SKalle Valo struct ieee80211_regdomain *regd; 356e705c121SKalle Valo 357e705c121SKalle Valo if (!iwl_mvm_is_lar_supported(mvm)) 358e705c121SKalle Valo return; 359e705c121SKalle Valo 360e705c121SKalle Valo regd = iwl_mvm_get_current_regdomain(mvm, &changed); 361e705c121SKalle Valo if (!IS_ERR_OR_NULL(regd)) { 362e705c121SKalle Valo /* only update the regulatory core if changed */ 363e705c121SKalle Valo if (changed) 364e705c121SKalle Valo regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 365e705c121SKalle Valo 366e705c121SKalle Valo kfree(regd); 367e705c121SKalle Valo } 368e705c121SKalle Valo } 369e705c121SKalle Valo 370e705c121SKalle Valo struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 371e705c121SKalle Valo bool *changed) 372e705c121SKalle Valo { 373e705c121SKalle Valo return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 374e705c121SKalle Valo iwl_mvm_is_wifi_mcc_supported(mvm) ? 375e705c121SKalle Valo MCC_SOURCE_GET_CURRENT : 376e705c121SKalle Valo MCC_SOURCE_OLD_FW, changed); 377e705c121SKalle Valo } 378e705c121SKalle Valo 379e705c121SKalle Valo int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) 380e705c121SKalle Valo { 381e705c121SKalle Valo enum iwl_mcc_source used_src; 382e705c121SKalle Valo struct ieee80211_regdomain *regd; 383e705c121SKalle Valo int ret; 384e705c121SKalle Valo bool changed; 385e705c121SKalle Valo const struct ieee80211_regdomain *r = 386e705c121SKalle Valo rtnl_dereference(mvm->hw->wiphy->regd); 387e705c121SKalle Valo 388e705c121SKalle Valo if (!r) 389e705c121SKalle Valo return -ENOENT; 390e705c121SKalle Valo 391e705c121SKalle Valo /* save the last source in case we overwrite it below */ 392e705c121SKalle Valo used_src = mvm->mcc_src; 393e705c121SKalle Valo if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 394e705c121SKalle Valo /* Notify the firmware we support wifi location updates */ 395e705c121SKalle Valo regd = iwl_mvm_get_current_regdomain(mvm, NULL); 396e705c121SKalle Valo if (!IS_ERR_OR_NULL(regd)) 397e705c121SKalle Valo kfree(regd); 398e705c121SKalle Valo } 399e705c121SKalle Valo 400e705c121SKalle Valo /* Now set our last stored MCC and source */ 401e705c121SKalle Valo regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 402e705c121SKalle Valo &changed); 403e705c121SKalle Valo if (IS_ERR_OR_NULL(regd)) 404e705c121SKalle Valo return -EIO; 405e705c121SKalle Valo 406e705c121SKalle Valo /* update cfg80211 if the regdomain was changed */ 407e705c121SKalle Valo if (changed) 408e705c121SKalle Valo ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd); 409e705c121SKalle Valo else 410e705c121SKalle Valo ret = 0; 411e705c121SKalle Valo 412e705c121SKalle Valo kfree(regd); 413e705c121SKalle Valo return ret; 414e705c121SKalle Valo } 415e705c121SKalle Valo 416e705c121SKalle Valo int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 417e705c121SKalle Valo { 418e705c121SKalle Valo struct ieee80211_hw *hw = mvm->hw; 419e705c121SKalle Valo int num_mac, ret, i; 420e705c121SKalle Valo static const u32 mvm_ciphers[] = { 421e705c121SKalle Valo WLAN_CIPHER_SUITE_WEP40, 422e705c121SKalle Valo WLAN_CIPHER_SUITE_WEP104, 423e705c121SKalle Valo WLAN_CIPHER_SUITE_TKIP, 424e705c121SKalle Valo WLAN_CIPHER_SUITE_CCMP, 425e705c121SKalle Valo }; 426e705c121SKalle Valo 427e705c121SKalle Valo /* Tell mac80211 our characteristics */ 428e705c121SKalle Valo ieee80211_hw_set(hw, SIGNAL_DBM); 429e705c121SKalle Valo ieee80211_hw_set(hw, SPECTRUM_MGMT); 430e705c121SKalle Valo ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 431e705c121SKalle Valo ieee80211_hw_set(hw, QUEUE_CONTROL); 432e705c121SKalle Valo ieee80211_hw_set(hw, WANT_MONITOR_VIF); 433e705c121SKalle Valo ieee80211_hw_set(hw, SUPPORTS_PS); 434e705c121SKalle Valo ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 435e705c121SKalle Valo ieee80211_hw_set(hw, AMPDU_AGGREGATION); 436e705c121SKalle Valo ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 437e705c121SKalle Valo ieee80211_hw_set(hw, CONNECTION_MONITOR); 438e705c121SKalle Valo ieee80211_hw_set(hw, CHANCTX_STA_CSA); 439e705c121SKalle Valo ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 440e705c121SKalle Valo ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 441909ddf0bSJohannes Berg ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 44230433d3bSJohannes Berg ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 443e705c121SKalle Valo 4442d7cf549SJohannes Berg if (mvm->trans->max_skb_frags) 4452d7cf549SJohannes Berg hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 4462d7cf549SJohannes Berg 447e705c121SKalle Valo hw->queues = mvm->first_agg_queue; 448e705c121SKalle Valo hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 449e705c121SKalle Valo hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 450e705c121SKalle Valo IEEE80211_RADIOTAP_MCS_HAVE_STBC; 451e705c121SKalle Valo hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 452e705c121SKalle Valo IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 453e705c121SKalle Valo hw->rate_control_algorithm = "iwl-mvm-rs"; 454e705c121SKalle Valo hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 455e705c121SKalle Valo hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 456e705c121SKalle Valo 457e705c121SKalle Valo BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 2); 458e705c121SKalle Valo memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 459e705c121SKalle Valo hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 460e705c121SKalle Valo hw->wiphy->cipher_suites = mvm->ciphers; 461e705c121SKalle Valo 462e705c121SKalle Valo /* 463e705c121SKalle Valo * Enable 11w if advertised by firmware and software crypto 464e705c121SKalle Valo * is not enabled (as the firmware will interpret some mgmt 465e705c121SKalle Valo * packets, so enabling it with software crypto isn't safe) 466e705c121SKalle Valo */ 467e705c121SKalle Valo if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && 468e705c121SKalle Valo !iwlwifi_mod_params.sw_crypto) { 469e705c121SKalle Valo ieee80211_hw_set(hw, MFP_CAPABLE); 470e705c121SKalle Valo mvm->ciphers[hw->wiphy->n_cipher_suites] = 471e705c121SKalle Valo WLAN_CIPHER_SUITE_AES_CMAC; 472e705c121SKalle Valo hw->wiphy->n_cipher_suites++; 473e705c121SKalle Valo } 474e705c121SKalle Valo 475e705c121SKalle Valo /* currently FW API supports only one optional cipher scheme */ 476e705c121SKalle Valo if (mvm->fw->cs[0].cipher) { 477e705c121SKalle Valo mvm->hw->n_cipher_schemes = 1; 478e705c121SKalle Valo mvm->hw->cipher_schemes = &mvm->fw->cs[0]; 479e705c121SKalle Valo mvm->ciphers[hw->wiphy->n_cipher_suites] = 480e705c121SKalle Valo mvm->fw->cs[0].cipher; 481e705c121SKalle Valo hw->wiphy->n_cipher_suites++; 482e705c121SKalle Valo } 483e705c121SKalle Valo 484e705c121SKalle Valo ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 485e705c121SKalle Valo hw->wiphy->features |= 486e705c121SKalle Valo NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 487e705c121SKalle Valo NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 488e705c121SKalle Valo NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 489e705c121SKalle Valo 490e705c121SKalle Valo hw->sta_data_size = sizeof(struct iwl_mvm_sta); 491e705c121SKalle Valo hw->vif_data_size = sizeof(struct iwl_mvm_vif); 492e705c121SKalle Valo hw->chanctx_data_size = sizeof(u16); 493e705c121SKalle Valo 494e705c121SKalle Valo hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 495e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_CLIENT) | 496e705c121SKalle Valo BIT(NL80211_IFTYPE_AP) | 497e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_GO) | 498e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_DEVICE) | 499e705c121SKalle Valo BIT(NL80211_IFTYPE_ADHOC); 500e705c121SKalle Valo 501e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 502e705c121SKalle Valo hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 503e705c121SKalle Valo if (iwl_mvm_is_lar_supported(mvm)) 504e705c121SKalle Valo hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 505e705c121SKalle Valo else 506e705c121SKalle Valo hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 507e705c121SKalle Valo REGULATORY_DISABLE_BEACON_HINTS; 508e705c121SKalle Valo 509e705c121SKalle Valo if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD) 510e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 511e705c121SKalle Valo 512e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 513e705c121SKalle Valo 514e705c121SKalle Valo hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 515e705c121SKalle Valo hw->wiphy->n_iface_combinations = 516e705c121SKalle Valo ARRAY_SIZE(iwl_mvm_iface_combinations); 517e705c121SKalle Valo 518e705c121SKalle Valo hw->wiphy->max_remain_on_channel_duration = 10000; 519e705c121SKalle Valo hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 520e705c121SKalle Valo /* we can compensate an offset of up to 3 channels = 15 MHz */ 521e705c121SKalle Valo hw->wiphy->max_adj_channel_rssi_comp = 3 * 5; 522e705c121SKalle Valo 523e705c121SKalle Valo /* Extract MAC address */ 524e705c121SKalle Valo memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 525e705c121SKalle Valo hw->wiphy->addresses = mvm->addresses; 526e705c121SKalle Valo hw->wiphy->n_addresses = 1; 527e705c121SKalle Valo 528e705c121SKalle Valo /* Extract additional MAC addresses if available */ 529e705c121SKalle Valo num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 530e705c121SKalle Valo min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 531e705c121SKalle Valo 532e705c121SKalle Valo for (i = 1; i < num_mac; i++) { 533e705c121SKalle Valo memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 534e705c121SKalle Valo ETH_ALEN); 535e705c121SKalle Valo mvm->addresses[i].addr[5]++; 536e705c121SKalle Valo hw->wiphy->n_addresses++; 537e705c121SKalle Valo } 538e705c121SKalle Valo 539e705c121SKalle Valo iwl_mvm_reset_phy_ctxts(mvm); 540e705c121SKalle Valo 541e705c121SKalle Valo hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 542e705c121SKalle Valo 543e705c121SKalle Valo hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 544e705c121SKalle Valo 545e705c121SKalle Valo BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 546e705c121SKalle Valo BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 547e705c121SKalle Valo IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 548e705c121SKalle Valo 549e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 550e705c121SKalle Valo mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 551e705c121SKalle Valo else 552e705c121SKalle Valo mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 553e705c121SKalle Valo 554e705c121SKalle Valo if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) 555e705c121SKalle Valo hw->wiphy->bands[IEEE80211_BAND_2GHZ] = 556e705c121SKalle Valo &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ]; 557e705c121SKalle Valo if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) { 558e705c121SKalle Valo hw->wiphy->bands[IEEE80211_BAND_5GHZ] = 559e705c121SKalle Valo &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ]; 560e705c121SKalle Valo 561e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 562e705c121SKalle Valo IWL_UCODE_TLV_CAPA_BEAMFORMER) && 563e705c121SKalle Valo fw_has_api(&mvm->fw->ucode_capa, 564e705c121SKalle Valo IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 565e705c121SKalle Valo hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |= 566e705c121SKalle Valo IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 567e705c121SKalle Valo } 568e705c121SKalle Valo 569e705c121SKalle Valo hw->wiphy->hw_version = mvm->trans->hw_id; 570e705c121SKalle Valo 571e705c121SKalle Valo if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 572e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 573e705c121SKalle Valo else 574e705c121SKalle Valo hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 575e705c121SKalle Valo 576e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; 577e705c121SKalle Valo hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 578e705c121SKalle Valo hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; 579e705c121SKalle Valo /* we create the 802.11 header and zero length SSID IE. */ 580e705c121SKalle Valo hw->wiphy->max_sched_scan_ie_len = 581e705c121SKalle Valo SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 582e705c121SKalle Valo hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 583e705c121SKalle Valo hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 584e705c121SKalle Valo 585e705c121SKalle Valo /* 586e705c121SKalle Valo * the firmware uses u8 for num of iterations, but 0xff is saved for 587e705c121SKalle Valo * infinite loop, so the maximum number of iterations is actually 254. 588e705c121SKalle Valo */ 589e705c121SKalle Valo hw->wiphy->max_sched_scan_plan_iterations = 254; 590e705c121SKalle Valo 591e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 592e705c121SKalle Valo NL80211_FEATURE_LOW_PRIORITY_SCAN | 593e705c121SKalle Valo NL80211_FEATURE_P2P_GO_OPPPS | 594e705c121SKalle Valo NL80211_FEATURE_DYNAMIC_SMPS | 595e705c121SKalle Valo NL80211_FEATURE_STATIC_SMPS | 596e705c121SKalle Valo NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 597e705c121SKalle Valo 598e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 599e705c121SKalle Valo IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 600e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 601e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 602e705c121SKalle Valo IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 603e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_QUIET; 604e705c121SKalle Valo 605e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 606e705c121SKalle Valo IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 607e705c121SKalle Valo hw->wiphy->features |= 608e705c121SKalle Valo NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 609e705c121SKalle Valo 610e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 611e705c121SKalle Valo IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 612e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 613e705c121SKalle Valo 614e705c121SKalle Valo mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 615e705c121SKalle Valo 616e705c121SKalle Valo #ifdef CONFIG_PM_SLEEP 617e705c121SKalle Valo if (iwl_mvm_is_d0i3_supported(mvm) && 618e705c121SKalle Valo device_can_wakeup(mvm->trans->dev)) { 619e705c121SKalle Valo mvm->wowlan.flags = WIPHY_WOWLAN_ANY; 620e705c121SKalle Valo hw->wiphy->wowlan = &mvm->wowlan; 621e705c121SKalle Valo } 622e705c121SKalle Valo 623e705c121SKalle Valo if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && 624e705c121SKalle Valo mvm->trans->ops->d3_suspend && 625e705c121SKalle Valo mvm->trans->ops->d3_resume && 626e705c121SKalle Valo device_can_wakeup(mvm->trans->dev)) { 627e705c121SKalle Valo mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 628e705c121SKalle Valo WIPHY_WOWLAN_DISCONNECT | 629e705c121SKalle Valo WIPHY_WOWLAN_EAP_IDENTITY_REQ | 630e705c121SKalle Valo WIPHY_WOWLAN_RFKILL_RELEASE | 631e705c121SKalle Valo WIPHY_WOWLAN_NET_DETECT; 632e705c121SKalle Valo if (!iwlwifi_mod_params.sw_crypto) 633e705c121SKalle Valo mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 634e705c121SKalle Valo WIPHY_WOWLAN_GTK_REKEY_FAILURE | 635e705c121SKalle Valo WIPHY_WOWLAN_4WAY_HANDSHAKE; 636e705c121SKalle Valo 637e705c121SKalle Valo mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 638e705c121SKalle Valo mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 639e705c121SKalle Valo mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 640e705c121SKalle Valo mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES; 641e705c121SKalle Valo mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; 642e705c121SKalle Valo hw->wiphy->wowlan = &mvm->wowlan; 643e705c121SKalle Valo } 644e705c121SKalle Valo #endif 645e705c121SKalle Valo 646e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 647e705c121SKalle Valo /* assign default bcast filtering configuration */ 648e705c121SKalle Valo mvm->bcast_filters = iwl_mvm_default_bcast_filters; 649e705c121SKalle Valo #endif 650e705c121SKalle Valo 651e705c121SKalle Valo ret = iwl_mvm_leds_init(mvm); 652e705c121SKalle Valo if (ret) 653e705c121SKalle Valo return ret; 654e705c121SKalle Valo 655e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 656e705c121SKalle Valo IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 657e705c121SKalle Valo IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 658e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 659e705c121SKalle Valo ieee80211_hw_set(hw, TDLS_WIDER_BW); 660e705c121SKalle Valo } 661e705c121SKalle Valo 662e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 663e705c121SKalle Valo IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 664e705c121SKalle Valo IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 665e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 666e705c121SKalle Valo } 667e705c121SKalle Valo 668e705c121SKalle Valo hw->netdev_features |= mvm->cfg->features; 669e705c121SKalle Valo if (!iwl_mvm_is_csum_supported(mvm)) 670e705c121SKalle Valo hw->netdev_features &= ~NETIF_F_RXCSUM; 671e705c121SKalle Valo 67241837ca9SEmmanuel Grumbach if (IWL_MVM_SW_TX_CSUM_OFFLOAD) 673a3713f8bSEmmanuel Grumbach hw->netdev_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | 674a3713f8bSEmmanuel Grumbach NETIF_F_TSO | NETIF_F_TSO6; 67541837ca9SEmmanuel Grumbach 676e705c121SKalle Valo ret = ieee80211_register_hw(mvm->hw); 677e705c121SKalle Valo if (ret) 678e705c121SKalle Valo iwl_mvm_leds_exit(mvm); 679e705c121SKalle Valo 680e705c121SKalle Valo return ret; 681e705c121SKalle Valo } 682e705c121SKalle Valo 683e705c121SKalle Valo static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm, 684e705c121SKalle Valo struct ieee80211_sta *sta, 685e705c121SKalle Valo struct sk_buff *skb) 686e705c121SKalle Valo { 687e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 688e705c121SKalle Valo bool defer = false; 689e705c121SKalle Valo 690e705c121SKalle Valo /* 691e705c121SKalle Valo * double check the IN_D0I3 flag both before and after 692e705c121SKalle Valo * taking the spinlock, in order to prevent taking 693e705c121SKalle Valo * the spinlock when not needed. 694e705c121SKalle Valo */ 695e705c121SKalle Valo if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))) 696e705c121SKalle Valo return false; 697e705c121SKalle Valo 698e705c121SKalle Valo spin_lock(&mvm->d0i3_tx_lock); 699e705c121SKalle Valo /* 700e705c121SKalle Valo * testing the flag again ensures the skb dequeue 701e705c121SKalle Valo * loop (on d0i3 exit) hasn't run yet. 702e705c121SKalle Valo */ 703e705c121SKalle Valo if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) 704e705c121SKalle Valo goto out; 705e705c121SKalle Valo 706e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_mac80211(sta); 707e705c121SKalle Valo if (mvmsta->sta_id == IWL_MVM_STATION_COUNT || 708e705c121SKalle Valo mvmsta->sta_id != mvm->d0i3_ap_sta_id) 709e705c121SKalle Valo goto out; 710e705c121SKalle Valo 711e705c121SKalle Valo __skb_queue_tail(&mvm->d0i3_tx, skb); 712e705c121SKalle Valo ieee80211_stop_queues(mvm->hw); 713e705c121SKalle Valo 714e705c121SKalle Valo /* trigger wakeup */ 715e705c121SKalle Valo iwl_mvm_ref(mvm, IWL_MVM_REF_TX); 716e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_TX); 717e705c121SKalle Valo 718e705c121SKalle Valo defer = true; 719e705c121SKalle Valo out: 720e705c121SKalle Valo spin_unlock(&mvm->d0i3_tx_lock); 721e705c121SKalle Valo return defer; 722e705c121SKalle Valo } 723e705c121SKalle Valo 724e705c121SKalle Valo static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 725e705c121SKalle Valo struct ieee80211_tx_control *control, 726e705c121SKalle Valo struct sk_buff *skb) 727e705c121SKalle Valo { 728e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 729e705c121SKalle Valo struct ieee80211_sta *sta = control->sta; 730e705c121SKalle Valo struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 731e705c121SKalle Valo struct ieee80211_hdr *hdr = (void *)skb->data; 732e705c121SKalle Valo 733e705c121SKalle Valo if (iwl_mvm_is_radio_killed(mvm)) { 734e705c121SKalle Valo IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 735e705c121SKalle Valo goto drop; 736e705c121SKalle Valo } 737e705c121SKalle Valo 738e705c121SKalle Valo if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && 739e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 740e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 741e705c121SKalle Valo goto drop; 742e705c121SKalle Valo 743e705c121SKalle Valo /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */ 744e705c121SKalle Valo if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER && 745e705c121SKalle Valo ieee80211_is_mgmt(hdr->frame_control) && 746e705c121SKalle Valo !ieee80211_is_deauth(hdr->frame_control) && 747e705c121SKalle Valo !ieee80211_is_disassoc(hdr->frame_control) && 748e705c121SKalle Valo !ieee80211_is_action(hdr->frame_control))) 749e705c121SKalle Valo sta = NULL; 750e705c121SKalle Valo 751e705c121SKalle Valo if (sta) { 752e705c121SKalle Valo if (iwl_mvm_defer_tx(mvm, sta, skb)) 753e705c121SKalle Valo return; 754e705c121SKalle Valo if (iwl_mvm_tx_skb(mvm, skb, sta)) 755e705c121SKalle Valo goto drop; 756e705c121SKalle Valo return; 757e705c121SKalle Valo } 758e705c121SKalle Valo 759e705c121SKalle Valo if (iwl_mvm_tx_skb_non_sta(mvm, skb)) 760e705c121SKalle Valo goto drop; 761e705c121SKalle Valo return; 762e705c121SKalle Valo drop: 763e705c121SKalle Valo ieee80211_free_txskb(hw, skb); 764e705c121SKalle Valo } 765e705c121SKalle Valo 766e705c121SKalle Valo static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) 767e705c121SKalle Valo { 768e705c121SKalle Valo if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) 769e705c121SKalle Valo return false; 770e705c121SKalle Valo return true; 771e705c121SKalle Valo } 772e705c121SKalle Valo 773e705c121SKalle Valo static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) 774e705c121SKalle Valo { 775e705c121SKalle Valo if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) 776e705c121SKalle Valo return false; 777e705c121SKalle Valo if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) 778e705c121SKalle Valo return true; 779e705c121SKalle Valo 780e705c121SKalle Valo /* enabled by default */ 781e705c121SKalle Valo return true; 782e705c121SKalle Valo } 783e705c121SKalle Valo 784e705c121SKalle Valo #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 785e705c121SKalle Valo do { \ 786e705c121SKalle Valo if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 787e705c121SKalle Valo break; \ 788e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \ 789e705c121SKalle Valo } while (0) 790e705c121SKalle Valo 791e705c121SKalle Valo static void 792e705c121SKalle Valo iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 793e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 794e705c121SKalle Valo enum ieee80211_ampdu_mlme_action action) 795e705c121SKalle Valo { 796e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 797e705c121SKalle Valo struct iwl_fw_dbg_trigger_ba *ba_trig; 798e705c121SKalle Valo 799e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) 800e705c121SKalle Valo return; 801e705c121SKalle Valo 802e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); 803e705c121SKalle Valo ba_trig = (void *)trig->data; 804e705c121SKalle Valo 805e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 806e705c121SKalle Valo return; 807e705c121SKalle Valo 808e705c121SKalle Valo switch (action) { 809e705c121SKalle Valo case IEEE80211_AMPDU_TX_OPERATIONAL: { 810e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 811e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 812e705c121SKalle Valo 813e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 814e705c121SKalle Valo "TX AGG START: MAC %pM tid %d ssn %d\n", 815e705c121SKalle Valo sta->addr, tid, tid_data->ssn); 816e705c121SKalle Valo break; 817e705c121SKalle Valo } 818e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_CONT: 819e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 820e705c121SKalle Valo "TX AGG STOP: MAC %pM tid %d\n", 821e705c121SKalle Valo sta->addr, tid); 822e705c121SKalle Valo break; 823e705c121SKalle Valo case IEEE80211_AMPDU_RX_START: 824e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 825e705c121SKalle Valo "RX AGG START: MAC %pM tid %d ssn %d\n", 826e705c121SKalle Valo sta->addr, tid, rx_ba_ssn); 827e705c121SKalle Valo break; 828e705c121SKalle Valo case IEEE80211_AMPDU_RX_STOP: 829e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 830e705c121SKalle Valo "RX AGG STOP: MAC %pM tid %d\n", 831e705c121SKalle Valo sta->addr, tid); 832e705c121SKalle Valo break; 833e705c121SKalle Valo default: 834e705c121SKalle Valo break; 835e705c121SKalle Valo } 836e705c121SKalle Valo } 837e705c121SKalle Valo 838e705c121SKalle Valo static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 839e705c121SKalle Valo struct ieee80211_vif *vif, 84050ea05efSSara Sharon struct ieee80211_ampdu_params *params) 841e705c121SKalle Valo { 842e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 843e705c121SKalle Valo int ret; 844e705c121SKalle Valo bool tx_agg_ref = false; 84550ea05efSSara Sharon struct ieee80211_sta *sta = params->sta; 84650ea05efSSara Sharon enum ieee80211_ampdu_mlme_action action = params->action; 84750ea05efSSara Sharon u16 tid = params->tid; 84850ea05efSSara Sharon u16 *ssn = ¶ms->ssn; 84950ea05efSSara Sharon u8 buf_size = params->buf_size; 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 } 890e705c121SKalle Valo ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true); 891e705c121SKalle Valo break; 892e705c121SKalle Valo case IEEE80211_AMPDU_RX_STOP: 893e705c121SKalle Valo ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false); 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: 910e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size); 911e705c121SKalle Valo break; 912e705c121SKalle Valo default: 913e705c121SKalle Valo WARN_ON_ONCE(1); 914e705c121SKalle Valo ret = -EINVAL; 915e705c121SKalle Valo break; 916e705c121SKalle Valo } 917e705c121SKalle Valo 918e705c121SKalle Valo if (!ret) { 919e705c121SKalle Valo u16 rx_ba_ssn = 0; 920e705c121SKalle Valo 921e705c121SKalle Valo if (action == IEEE80211_AMPDU_RX_START) 922e705c121SKalle Valo rx_ba_ssn = *ssn; 923e705c121SKalle Valo 924e705c121SKalle Valo iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 925e705c121SKalle Valo rx_ba_ssn, action); 926e705c121SKalle Valo } 927e705c121SKalle Valo mutex_unlock(&mvm->mutex); 928e705c121SKalle Valo 929e705c121SKalle Valo /* 930e705c121SKalle Valo * If the tid is marked as started, we won't use it for offloaded 931e705c121SKalle Valo * traffic on the next D0i3 entry. It's safe to unref. 932e705c121SKalle Valo */ 933e705c121SKalle Valo if (tx_agg_ref) 934e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); 935e705c121SKalle Valo 936e705c121SKalle Valo return ret; 937e705c121SKalle Valo } 938e705c121SKalle Valo 939e705c121SKalle Valo static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 940e705c121SKalle Valo struct ieee80211_vif *vif) 941e705c121SKalle Valo { 942e705c121SKalle Valo struct iwl_mvm *mvm = data; 943e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 944e705c121SKalle Valo 945e705c121SKalle Valo mvmvif->uploaded = false; 946e705c121SKalle Valo mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; 947e705c121SKalle Valo 948e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 949e705c121SKalle Valo iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 950e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 951e705c121SKalle Valo 952e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 953e705c121SKalle Valo memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 954e705c121SKalle Valo } 955e705c121SKalle Valo 956e705c121SKalle Valo static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 957e705c121SKalle Valo { 958e705c121SKalle Valo /* clear the D3 reconfig, we only need it to avoid dumping a 959e705c121SKalle Valo * firmware coredump on reconfiguration, we shouldn't do that 960e705c121SKalle Valo * on D3->D0 transition 961e705c121SKalle Valo */ 962e705c121SKalle Valo if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) { 963e705c121SKalle Valo mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert; 964e705c121SKalle Valo iwl_mvm_fw_error_dump(mvm); 965e705c121SKalle Valo } 966e705c121SKalle Valo 967e705c121SKalle Valo /* cleanup all stale references (scan, roc), but keep the 968e705c121SKalle Valo * ucode_down ref until reconfig is complete 969e705c121SKalle Valo */ 970e705c121SKalle Valo iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN); 971e705c121SKalle Valo 972e705c121SKalle Valo iwl_trans_stop_device(mvm->trans); 973e705c121SKalle Valo 974e705c121SKalle Valo mvm->scan_status = 0; 975e705c121SKalle Valo mvm->ps_disabled = false; 976e705c121SKalle Valo mvm->calibrating = false; 977e705c121SKalle Valo 978e705c121SKalle Valo /* just in case one was running */ 979305d236eSEliad Peller iwl_mvm_cleanup_roc_te(mvm); 980e705c121SKalle Valo ieee80211_remain_on_channel_expired(mvm->hw); 981e705c121SKalle Valo 982e705c121SKalle Valo /* 983e705c121SKalle Valo * cleanup all interfaces, even inactive ones, as some might have 984e705c121SKalle Valo * gone down during the HW restart 985e705c121SKalle Valo */ 986e705c121SKalle Valo ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 987e705c121SKalle Valo 988e705c121SKalle Valo mvm->p2p_device_vif = NULL; 989e705c121SKalle Valo mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; 990e705c121SKalle Valo 991e705c121SKalle Valo iwl_mvm_reset_phy_ctxts(mvm); 9929c3deeb5SLuca Coelho memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 993e705c121SKalle Valo memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); 994e705c121SKalle Valo memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained)); 995e705c121SKalle Valo memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 996e705c121SKalle Valo memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old)); 997e705c121SKalle Valo memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 998e705c121SKalle Valo memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old)); 999e705c121SKalle Valo memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk)); 1000e705c121SKalle Valo memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk)); 1001e705c121SKalle Valo 1002e705c121SKalle Valo ieee80211_wake_queues(mvm->hw); 1003e705c121SKalle Valo 1004e705c121SKalle Valo /* clear any stale d0i3 state */ 1005e705c121SKalle Valo clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); 1006e705c121SKalle Valo 1007e705c121SKalle Valo mvm->vif_count = 0; 1008e705c121SKalle Valo mvm->rx_ba_sessions = 0; 1009e705c121SKalle Valo mvm->fw_dbg_conf = FW_DBG_INVALID; 1010e705c121SKalle Valo 1011e705c121SKalle Valo /* keep statistics ticking */ 1012e705c121SKalle Valo iwl_mvm_accu_radio_stats(mvm); 1013e705c121SKalle Valo } 1014e705c121SKalle Valo 1015e705c121SKalle Valo int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1016e705c121SKalle Valo { 1017e705c121SKalle Valo int ret; 1018e705c121SKalle Valo 1019e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1020e705c121SKalle Valo 1021a42b2af3SLuca Coelho if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1022e705c121SKalle Valo /* Clean up some internal and mac80211 state on restart */ 1023e705c121SKalle Valo iwl_mvm_restart_cleanup(mvm); 1024a42b2af3SLuca Coelho } else { 1025a42b2af3SLuca Coelho /* Hold the reference to prevent runtime suspend while 1026a42b2af3SLuca Coelho * the start procedure runs. It's a bit confusing 1027a42b2af3SLuca Coelho * that the UCODE_DOWN reference is taken, but it just 1028a42b2af3SLuca Coelho * means "UCODE is not UP yet". ( TODO: rename this 1029a42b2af3SLuca Coelho * reference). 1030a42b2af3SLuca Coelho */ 1031a42b2af3SLuca Coelho iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); 1032a42b2af3SLuca Coelho } 1033e705c121SKalle Valo ret = iwl_mvm_up(mvm); 1034e705c121SKalle Valo 1035e705c121SKalle Valo if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1036e705c121SKalle Valo /* Something went wrong - we need to finish some cleanup 1037e705c121SKalle Valo * that normally iwl_mvm_mac_restart_complete() below 1038e705c121SKalle Valo * would do. 1039e705c121SKalle Valo */ 1040e705c121SKalle Valo clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1041e705c121SKalle Valo iwl_mvm_d0i3_enable_tx(mvm, NULL); 1042e705c121SKalle Valo } 1043e705c121SKalle Valo 1044e705c121SKalle Valo return ret; 1045e705c121SKalle Valo } 1046e705c121SKalle Valo 1047e705c121SKalle Valo static int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1048e705c121SKalle Valo { 1049e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1050e705c121SKalle Valo int ret; 1051e705c121SKalle Valo 1052e705c121SKalle Valo /* Some hw restart cleanups must not hold the mutex */ 1053e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1054e705c121SKalle Valo /* 1055e705c121SKalle Valo * Make sure we are out of d0i3. This is needed 1056e705c121SKalle Valo * to make sure the reference accounting is correct 1057e705c121SKalle Valo * (and there is no stale d0i3_exit_work). 1058e705c121SKalle Valo */ 1059e705c121SKalle Valo wait_event_timeout(mvm->d0i3_exit_waitq, 1060e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_IN_D0I3, 1061e705c121SKalle Valo &mvm->status), 1062e705c121SKalle Valo HZ); 1063e705c121SKalle Valo } 1064e705c121SKalle Valo 1065e705c121SKalle Valo mutex_lock(&mvm->mutex); 1066e705c121SKalle Valo ret = __iwl_mvm_mac_start(mvm); 1067e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1068e705c121SKalle Valo 1069e705c121SKalle Valo return ret; 1070e705c121SKalle Valo } 1071e705c121SKalle Valo 1072e705c121SKalle Valo static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1073e705c121SKalle Valo { 1074e705c121SKalle Valo int ret; 1075e705c121SKalle Valo 1076e705c121SKalle Valo mutex_lock(&mvm->mutex); 1077e705c121SKalle Valo 1078e705c121SKalle Valo clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1079e705c121SKalle Valo iwl_mvm_d0i3_enable_tx(mvm, NULL); 1080e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, true, NULL); 1081e705c121SKalle Valo if (ret) 1082e705c121SKalle Valo IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1083e705c121SKalle Valo ret); 1084e705c121SKalle Valo 1085e705c121SKalle Valo /* allow transport/FW low power modes */ 1086e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN); 1087e705c121SKalle Valo 1088e705c121SKalle Valo /* 1089e705c121SKalle Valo * If we have TDLS peers, remove them. We don't know the last seqno/PN 1090e705c121SKalle Valo * of packets the FW sent out, so we must reconnect. 1091e705c121SKalle Valo */ 1092e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 1093e705c121SKalle Valo 1094e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1095e705c121SKalle Valo } 1096e705c121SKalle Valo 1097e705c121SKalle Valo static void iwl_mvm_resume_complete(struct iwl_mvm *mvm) 1098e705c121SKalle Valo { 1099b7282643SLuca Coelho if (iwl_mvm_is_d0i3_supported(mvm) && 1100b7282643SLuca Coelho iwl_mvm_enter_d0i3_on_suspend(mvm)) 1101b7282643SLuca Coelho WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq, 1102e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_IN_D0I3, 1103e705c121SKalle Valo &mvm->status), 1104b7282643SLuca Coelho HZ), 1105b7282643SLuca Coelho "D0i3 exit on resume timed out\n"); 1106e705c121SKalle Valo } 1107e705c121SKalle Valo 1108e705c121SKalle Valo static void 1109e705c121SKalle Valo iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1110e705c121SKalle Valo enum ieee80211_reconfig_type reconfig_type) 1111e705c121SKalle Valo { 1112e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1113e705c121SKalle Valo 1114e705c121SKalle Valo switch (reconfig_type) { 1115e705c121SKalle Valo case IEEE80211_RECONFIG_TYPE_RESTART: 1116e705c121SKalle Valo iwl_mvm_restart_complete(mvm); 1117e705c121SKalle Valo break; 1118e705c121SKalle Valo case IEEE80211_RECONFIG_TYPE_SUSPEND: 1119e705c121SKalle Valo iwl_mvm_resume_complete(mvm); 1120e705c121SKalle Valo break; 1121e705c121SKalle Valo } 1122e705c121SKalle Valo } 1123e705c121SKalle Valo 1124e705c121SKalle Valo void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1125e705c121SKalle Valo { 1126e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1127e705c121SKalle Valo 1128e705c121SKalle Valo /* firmware counters are obviously reset now, but we shouldn't 1129e705c121SKalle Valo * partially track so also clear the fw_reset_accu counters. 1130e705c121SKalle Valo */ 1131e705c121SKalle Valo memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1132e705c121SKalle Valo 1133e705c121SKalle Valo /* async_handlers_wk is now blocked */ 1134e705c121SKalle Valo 1135e705c121SKalle Valo /* 1136e705c121SKalle Valo * The work item could be running or queued if the 1137e705c121SKalle Valo * ROC time event stops just as we get here. 1138e705c121SKalle Valo */ 1139e705c121SKalle Valo flush_work(&mvm->roc_done_wk); 1140e705c121SKalle Valo 1141e705c121SKalle Valo iwl_trans_stop_device(mvm->trans); 1142e705c121SKalle Valo 1143e705c121SKalle Valo iwl_mvm_async_handlers_purge(mvm); 1144e705c121SKalle Valo /* async_handlers_list is empty and will stay empty: HW is stopped */ 1145e705c121SKalle Valo 1146e705c121SKalle Valo /* the fw is stopped, the aux sta is dead: clean up driver state */ 1147e705c121SKalle Valo iwl_mvm_del_aux_sta(mvm); 1148e705c121SKalle Valo 1149e705c121SKalle Valo /* 1150e705c121SKalle Valo * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete() 1151e705c121SKalle Valo * won't be called in this case). 1152e705c121SKalle Valo * But make sure to cleanup interfaces that have gone down before/during 1153e705c121SKalle Valo * HW restart was requested. 1154e705c121SKalle Valo */ 1155e705c121SKalle Valo if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1156e705c121SKalle Valo ieee80211_iterate_interfaces(mvm->hw, 0, 1157e705c121SKalle Valo iwl_mvm_cleanup_iterator, mvm); 1158e705c121SKalle Valo 1159e705c121SKalle Valo /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1160e705c121SKalle Valo * make sure there's nothing left there and warn if any is found. 1161e705c121SKalle Valo */ 1162e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1163e705c121SKalle Valo int i; 1164e705c121SKalle Valo 1165e705c121SKalle Valo for (i = 0; i < mvm->max_scans; i++) { 1166e705c121SKalle Valo if (WARN_ONCE(mvm->scan_uid_status[i], 1167e705c121SKalle Valo "UMAC scan UID %d status was not cleaned\n", 1168e705c121SKalle Valo i)) 1169e705c121SKalle Valo mvm->scan_uid_status[i] = 0; 1170e705c121SKalle Valo } 1171e705c121SKalle Valo } 1172e705c121SKalle Valo 1173e705c121SKalle Valo mvm->ucode_loaded = false; 1174e705c121SKalle Valo } 1175e705c121SKalle Valo 1176e705c121SKalle Valo static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1177e705c121SKalle Valo { 1178e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1179e705c121SKalle Valo 1180e705c121SKalle Valo flush_work(&mvm->d0i3_exit_work); 1181e705c121SKalle Valo flush_work(&mvm->async_handlers_wk); 1182e705c121SKalle Valo cancel_delayed_work_sync(&mvm->fw_dump_wk); 1183e705c121SKalle Valo iwl_mvm_free_fw_dump_desc(mvm); 1184e705c121SKalle Valo 1185e705c121SKalle Valo mutex_lock(&mvm->mutex); 1186e705c121SKalle Valo __iwl_mvm_mac_stop(mvm); 1187e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1188e705c121SKalle Valo 1189e705c121SKalle Valo /* 1190e705c121SKalle Valo * The worker might have been waiting for the mutex, let it run and 1191e705c121SKalle Valo * discover that its list is now empty. 1192e705c121SKalle Valo */ 1193e705c121SKalle Valo cancel_work_sync(&mvm->async_handlers_wk); 1194e705c121SKalle Valo } 1195e705c121SKalle Valo 1196e705c121SKalle Valo static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1197e705c121SKalle Valo { 1198e705c121SKalle Valo u16 i; 1199e705c121SKalle Valo 1200e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1201e705c121SKalle Valo 1202e705c121SKalle Valo for (i = 0; i < NUM_PHY_CTX; i++) 1203e705c121SKalle Valo if (!mvm->phy_ctxts[i].ref) 1204e705c121SKalle Valo return &mvm->phy_ctxts[i]; 1205e705c121SKalle Valo 1206e705c121SKalle Valo IWL_ERR(mvm, "No available PHY context\n"); 1207e705c121SKalle Valo return NULL; 1208e705c121SKalle Valo } 1209e705c121SKalle Valo 1210e705c121SKalle Valo static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1211e705c121SKalle Valo s16 tx_power) 1212e705c121SKalle Valo { 1213e705c121SKalle Valo struct iwl_dev_tx_power_cmd cmd = { 1214e705c121SKalle Valo .v2.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1215e705c121SKalle Valo .v2.mac_context_id = 1216e705c121SKalle Valo cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1217e705c121SKalle Valo .v2.pwr_restriction = cpu_to_le16(8 * tx_power), 1218e705c121SKalle Valo }; 1219e705c121SKalle Valo int len = sizeof(cmd); 1220e705c121SKalle Valo 1221e705c121SKalle Valo if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1222e705c121SKalle Valo cmd.v2.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1223e705c121SKalle Valo 1224e705c121SKalle Valo if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_TX_POWER_CHAIN)) 1225e705c121SKalle Valo len = sizeof(cmd.v2); 1226e705c121SKalle Valo 1227e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); 1228e705c121SKalle Valo } 1229e705c121SKalle Valo 1230e705c121SKalle Valo static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1231e705c121SKalle Valo struct ieee80211_vif *vif) 1232e705c121SKalle Valo { 1233e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1234e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1235e705c121SKalle Valo int ret; 1236e705c121SKalle Valo 1237e705c121SKalle Valo mvmvif->mvm = mvm; 1238e705c121SKalle Valo 1239e705c121SKalle Valo /* 1240e705c121SKalle Valo * make sure D0i3 exit is completed, otherwise a target access 1241e705c121SKalle Valo * during tx queue configuration could be done when still in 1242e705c121SKalle Valo * D0i3 state. 1243e705c121SKalle Valo */ 1244e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF); 1245e705c121SKalle Valo if (ret) 1246e705c121SKalle Valo return ret; 1247e705c121SKalle Valo 1248e705c121SKalle Valo /* 1249e705c121SKalle Valo * Not much to do here. The stack will not allow interface 1250e705c121SKalle Valo * types or combinations that we didn't advertise, so we 1251e705c121SKalle Valo * don't really have to check the types. 1252e705c121SKalle Valo */ 1253e705c121SKalle Valo 1254e705c121SKalle Valo mutex_lock(&mvm->mutex); 1255e705c121SKalle Valo 1256e705c121SKalle Valo /* make sure that beacon statistics don't go backwards with FW reset */ 1257e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1258e705c121SKalle Valo mvmvif->beacon_stats.accu_num_beacons += 1259e705c121SKalle Valo mvmvif->beacon_stats.num_beacons; 1260e705c121SKalle Valo 1261e705c121SKalle Valo /* Allocate resources for the MAC context, and add it to the fw */ 1262e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1263e705c121SKalle Valo if (ret) 1264e705c121SKalle Valo goto out_unlock; 1265e705c121SKalle Valo 1266e705c121SKalle Valo /* Counting number of interfaces is needed for legacy PM */ 1267e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1268e705c121SKalle Valo mvm->vif_count++; 1269e705c121SKalle Valo 1270e705c121SKalle Valo /* 1271e705c121SKalle Valo * The AP binding flow can be done only after the beacon 1272e705c121SKalle Valo * template is configured (which happens only in the mac80211 1273e705c121SKalle Valo * start_ap() flow), and adding the broadcast station can happen 1274e705c121SKalle Valo * only after the binding. 1275e705c121SKalle Valo * In addition, since modifying the MAC before adding a bcast 1276e705c121SKalle Valo * station is not allowed by the FW, delay the adding of MAC context to 1277e705c121SKalle Valo * the point where we can also add the bcast station. 1278e705c121SKalle Valo * In short: there's not much we can do at this point, other than 1279e705c121SKalle Valo * allocating resources :) 1280e705c121SKalle Valo */ 1281e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP || 1282e705c121SKalle Valo vif->type == NL80211_IFTYPE_ADHOC) { 1283e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1284e705c121SKalle Valo if (ret) { 1285e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1286e705c121SKalle Valo goto out_release; 1287e705c121SKalle Valo } 1288e705c121SKalle Valo 1289e705c121SKalle Valo iwl_mvm_vif_dbgfs_register(mvm, vif); 1290e705c121SKalle Valo goto out_unlock; 1291e705c121SKalle Valo } 1292e705c121SKalle Valo 1293e705c121SKalle Valo mvmvif->features |= hw->netdev_features; 1294e705c121SKalle Valo 1295e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1296e705c121SKalle Valo if (ret) 1297e705c121SKalle Valo goto out_release; 1298e705c121SKalle Valo 1299e705c121SKalle Valo ret = iwl_mvm_power_update_mac(mvm); 1300e705c121SKalle Valo if (ret) 1301e705c121SKalle Valo goto out_remove_mac; 1302e705c121SKalle Valo 1303e705c121SKalle Valo /* beacon filtering */ 1304e705c121SKalle Valo ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1305e705c121SKalle Valo if (ret) 1306e705c121SKalle Valo goto out_remove_mac; 1307e705c121SKalle Valo 1308e705c121SKalle Valo if (!mvm->bf_allowed_vif && 1309e705c121SKalle Valo vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1310e705c121SKalle Valo mvm->bf_allowed_vif = mvmvif; 1311e705c121SKalle Valo vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1312e705c121SKalle Valo IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1313e705c121SKalle Valo } 1314e705c121SKalle Valo 1315e705c121SKalle Valo /* 1316e705c121SKalle Valo * P2P_DEVICE interface does not have a channel context assigned to it, 1317e705c121SKalle Valo * so a dedicated PHY context is allocated to it and the corresponding 1318e705c121SKalle Valo * MAC context is bound to it at this stage. 1319e705c121SKalle Valo */ 1320e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1321e705c121SKalle Valo 1322e705c121SKalle Valo mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1323e705c121SKalle Valo if (!mvmvif->phy_ctxt) { 1324e705c121SKalle Valo ret = -ENOSPC; 1325e705c121SKalle Valo goto out_free_bf; 1326e705c121SKalle Valo } 1327e705c121SKalle Valo 1328e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 1329e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 1330e705c121SKalle Valo if (ret) 1331e705c121SKalle Valo goto out_unref_phy; 1332e705c121SKalle Valo 1333e705c121SKalle Valo ret = iwl_mvm_add_bcast_sta(mvm, vif); 1334e705c121SKalle Valo if (ret) 1335e705c121SKalle Valo goto out_unbind; 1336e705c121SKalle Valo 1337e705c121SKalle Valo /* Save a pointer to p2p device vif, so it can later be used to 1338e705c121SKalle Valo * update the p2p device MAC when a GO is started/stopped */ 1339e705c121SKalle Valo mvm->p2p_device_vif = vif; 1340e705c121SKalle Valo } 1341e705c121SKalle Valo 1342e705c121SKalle Valo iwl_mvm_vif_dbgfs_register(mvm, vif); 1343e705c121SKalle Valo goto out_unlock; 1344e705c121SKalle Valo 1345e705c121SKalle Valo out_unbind: 1346e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 1347e705c121SKalle Valo out_unref_phy: 1348e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1349e705c121SKalle Valo out_free_bf: 1350e705c121SKalle Valo if (mvm->bf_allowed_vif == mvmvif) { 1351e705c121SKalle Valo mvm->bf_allowed_vif = NULL; 1352e705c121SKalle Valo vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1353e705c121SKalle Valo IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1354e705c121SKalle Valo } 1355e705c121SKalle Valo out_remove_mac: 1356e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 1357e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 1358e705c121SKalle Valo out_release: 1359e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1360e705c121SKalle Valo mvm->vif_count--; 1361e705c121SKalle Valo 1362e705c121SKalle Valo iwl_mvm_mac_ctxt_release(mvm, vif); 1363e705c121SKalle Valo out_unlock: 1364e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1365e705c121SKalle Valo 1366e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF); 1367e705c121SKalle Valo 1368e705c121SKalle Valo return ret; 1369e705c121SKalle Valo } 1370e705c121SKalle Valo 1371e705c121SKalle Valo static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1372e705c121SKalle Valo struct ieee80211_vif *vif) 1373e705c121SKalle Valo { 1374e705c121SKalle Valo u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif); 1375e705c121SKalle Valo 1376e705c121SKalle Valo if (tfd_msk) { 1377e705c121SKalle Valo /* 1378e705c121SKalle Valo * mac80211 first removes all the stations of the vif and 1379e705c121SKalle Valo * then removes the vif. When it removes a station it also 1380e705c121SKalle Valo * flushes the AMPDU session. So by now, all the AMPDU sessions 1381e705c121SKalle Valo * of all the stations of this vif are closed, and the queues 1382e705c121SKalle Valo * of these AMPDU sessions are properly closed. 1383e705c121SKalle Valo * We still need to take care of the shared queues of the vif. 1384e705c121SKalle Valo * Flush them here. 1385e705c121SKalle Valo */ 1386e705c121SKalle Valo mutex_lock(&mvm->mutex); 1387e705c121SKalle Valo iwl_mvm_flush_tx_path(mvm, tfd_msk, 0); 1388e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1389e705c121SKalle Valo 1390e705c121SKalle Valo /* 1391e705c121SKalle Valo * There are transports that buffer a few frames in the host. 1392e705c121SKalle Valo * For these, the flush above isn't enough since while we were 1393e705c121SKalle Valo * flushing, the transport might have sent more frames to the 1394e705c121SKalle Valo * device. To solve this, wait here until the transport is 1395e705c121SKalle Valo * empty. Technically, this could have replaced the flush 1396e705c121SKalle Valo * above, but flush is much faster than draining. So flush 1397e705c121SKalle Valo * first, and drain to make sure we have no frames in the 1398e705c121SKalle Valo * transport anymore. 1399e705c121SKalle Valo * If a station still had frames on the shared queues, it is 1400e705c121SKalle Valo * already marked as draining, so to complete the draining, we 1401e705c121SKalle Valo * just need to wait until the transport is empty. 1402e705c121SKalle Valo */ 1403e705c121SKalle Valo iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk); 1404e705c121SKalle Valo } 1405e705c121SKalle Valo 1406e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1407e705c121SKalle Valo /* 1408e705c121SKalle Valo * Flush the ROC worker which will flush the OFFCHANNEL queue. 1409e705c121SKalle Valo * We assume here that all the packets sent to the OFFCHANNEL 1410e705c121SKalle Valo * queue are sent in ROC session. 1411e705c121SKalle Valo */ 1412e705c121SKalle Valo flush_work(&mvm->roc_done_wk); 1413e705c121SKalle Valo } else { 1414e705c121SKalle Valo /* 1415e705c121SKalle Valo * By now, all the AC queues are empty. The AGG queues are 1416e705c121SKalle Valo * empty too. We already got all the Tx responses for all the 1417e705c121SKalle Valo * packets in the queues. The drain work can have been 1418e705c121SKalle Valo * triggered. Flush it. 1419e705c121SKalle Valo */ 1420e705c121SKalle Valo flush_work(&mvm->sta_drained_wk); 1421e705c121SKalle Valo } 1422e705c121SKalle Valo } 1423e705c121SKalle Valo 1424e705c121SKalle Valo static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1425e705c121SKalle Valo struct ieee80211_vif *vif) 1426e705c121SKalle Valo { 1427e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1428e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1429e705c121SKalle Valo 1430e705c121SKalle Valo iwl_mvm_prepare_mac_removal(mvm, vif); 1431e705c121SKalle Valo 1432e705c121SKalle Valo mutex_lock(&mvm->mutex); 1433e705c121SKalle Valo 1434e705c121SKalle Valo if (mvm->bf_allowed_vif == mvmvif) { 1435e705c121SKalle Valo mvm->bf_allowed_vif = NULL; 1436e705c121SKalle Valo vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1437e705c121SKalle Valo IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1438e705c121SKalle Valo } 1439e705c121SKalle Valo 1440e705c121SKalle Valo iwl_mvm_vif_dbgfs_clean(mvm, vif); 1441e705c121SKalle Valo 1442e705c121SKalle Valo /* 1443e705c121SKalle Valo * For AP/GO interface, the tear down of the resources allocated to the 1444e705c121SKalle Valo * interface is be handled as part of the stop_ap flow. 1445e705c121SKalle Valo */ 1446e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP || 1447e705c121SKalle Valo vif->type == NL80211_IFTYPE_ADHOC) { 1448e705c121SKalle Valo #ifdef CONFIG_NL80211_TESTMODE 1449e705c121SKalle Valo if (vif == mvm->noa_vif) { 1450e705c121SKalle Valo mvm->noa_vif = NULL; 1451e705c121SKalle Valo mvm->noa_duration = 0; 1452e705c121SKalle Valo } 1453e705c121SKalle Valo #endif 1454e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif); 1455e705c121SKalle Valo goto out_release; 1456e705c121SKalle Valo } 1457e705c121SKalle Valo 1458e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1459e705c121SKalle Valo mvm->p2p_device_vif = NULL; 1460e705c121SKalle Valo iwl_mvm_rm_bcast_sta(mvm, vif); 1461e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 1462e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1463e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 1464e705c121SKalle Valo } 1465e705c121SKalle Valo 1466e705c121SKalle Valo if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) 1467e705c121SKalle Valo mvm->vif_count--; 1468e705c121SKalle Valo 1469e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 1470e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 1471e705c121SKalle Valo 1472e705c121SKalle Valo out_release: 1473e705c121SKalle Valo iwl_mvm_mac_ctxt_release(mvm, vif); 1474e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1475e705c121SKalle Valo } 1476e705c121SKalle Valo 1477e705c121SKalle Valo static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) 1478e705c121SKalle Valo { 1479e705c121SKalle Valo return 0; 1480e705c121SKalle Valo } 1481e705c121SKalle Valo 1482e705c121SKalle Valo struct iwl_mvm_mc_iter_data { 1483e705c121SKalle Valo struct iwl_mvm *mvm; 1484e705c121SKalle Valo int port_id; 1485e705c121SKalle Valo }; 1486e705c121SKalle Valo 1487e705c121SKalle Valo static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1488e705c121SKalle Valo struct ieee80211_vif *vif) 1489e705c121SKalle Valo { 1490e705c121SKalle Valo struct iwl_mvm_mc_iter_data *data = _data; 1491e705c121SKalle Valo struct iwl_mvm *mvm = data->mvm; 1492e705c121SKalle Valo struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1493e705c121SKalle Valo int ret, len; 1494e705c121SKalle Valo 1495e705c121SKalle Valo /* if we don't have free ports, mcast frames will be dropped */ 1496e705c121SKalle Valo if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1497e705c121SKalle Valo return; 1498e705c121SKalle Valo 1499e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || 1500e705c121SKalle Valo !vif->bss_conf.assoc) 1501e705c121SKalle Valo return; 1502e705c121SKalle Valo 1503e705c121SKalle Valo cmd->port_id = data->port_id++; 1504e705c121SKalle Valo memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1505e705c121SKalle Valo len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1506e705c121SKalle Valo 1507e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd); 1508e705c121SKalle Valo if (ret) 1509e705c121SKalle Valo IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1510e705c121SKalle Valo } 1511e705c121SKalle Valo 1512e705c121SKalle Valo static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1513e705c121SKalle Valo { 1514e705c121SKalle Valo struct iwl_mvm_mc_iter_data iter_data = { 1515e705c121SKalle Valo .mvm = mvm, 1516e705c121SKalle Valo }; 1517e705c121SKalle Valo 1518e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1519e705c121SKalle Valo 1520e705c121SKalle Valo if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1521e705c121SKalle Valo return; 1522e705c121SKalle Valo 1523e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 1524e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1525e705c121SKalle Valo iwl_mvm_mc_iface_iterator, &iter_data); 1526e705c121SKalle Valo } 1527e705c121SKalle Valo 1528e705c121SKalle Valo static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1529e705c121SKalle Valo struct netdev_hw_addr_list *mc_list) 1530e705c121SKalle Valo { 1531e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1532e705c121SKalle Valo struct iwl_mcast_filter_cmd *cmd; 1533e705c121SKalle Valo struct netdev_hw_addr *addr; 1534e705c121SKalle Valo int addr_count; 1535e705c121SKalle Valo bool pass_all; 1536e705c121SKalle Valo int len; 1537e705c121SKalle Valo 1538e705c121SKalle Valo addr_count = netdev_hw_addr_list_count(mc_list); 1539e705c121SKalle Valo pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1540e705c121SKalle Valo IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1541e705c121SKalle Valo if (pass_all) 1542e705c121SKalle Valo addr_count = 0; 1543e705c121SKalle Valo 1544e705c121SKalle Valo len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1545e705c121SKalle Valo cmd = kzalloc(len, GFP_ATOMIC); 1546e705c121SKalle Valo if (!cmd) 1547e705c121SKalle Valo return 0; 1548e705c121SKalle Valo 1549e705c121SKalle Valo if (pass_all) { 1550e705c121SKalle Valo cmd->pass_all = 1; 1551e705c121SKalle Valo return (u64)(unsigned long)cmd; 1552e705c121SKalle Valo } 1553e705c121SKalle Valo 1554e705c121SKalle Valo netdev_hw_addr_list_for_each(addr, mc_list) { 1555e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1556e705c121SKalle Valo cmd->count, addr->addr); 1557e705c121SKalle Valo memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1558e705c121SKalle Valo addr->addr, ETH_ALEN); 1559e705c121SKalle Valo cmd->count++; 1560e705c121SKalle Valo } 1561e705c121SKalle Valo 1562e705c121SKalle Valo return (u64)(unsigned long)cmd; 1563e705c121SKalle Valo } 1564e705c121SKalle Valo 1565e705c121SKalle Valo static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1566e705c121SKalle Valo unsigned int changed_flags, 1567e705c121SKalle Valo unsigned int *total_flags, 1568e705c121SKalle Valo u64 multicast) 1569e705c121SKalle Valo { 1570e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1571e705c121SKalle Valo struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1572e705c121SKalle Valo 1573e705c121SKalle Valo mutex_lock(&mvm->mutex); 1574e705c121SKalle Valo 1575e705c121SKalle Valo /* replace previous configuration */ 1576e705c121SKalle Valo kfree(mvm->mcast_filter_cmd); 1577e705c121SKalle Valo mvm->mcast_filter_cmd = cmd; 1578e705c121SKalle Valo 1579e705c121SKalle Valo if (!cmd) 1580e705c121SKalle Valo goto out; 1581e705c121SKalle Valo 1582e705c121SKalle Valo iwl_mvm_recalc_multicast(mvm); 1583e705c121SKalle Valo out: 1584e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1585e705c121SKalle Valo *total_flags = 0; 1586e705c121SKalle Valo } 1587e705c121SKalle Valo 1588e705c121SKalle Valo static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1589e705c121SKalle Valo struct ieee80211_vif *vif, 1590e705c121SKalle Valo unsigned int filter_flags, 1591e705c121SKalle Valo unsigned int changed_flags) 1592e705c121SKalle Valo { 1593e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1594e705c121SKalle Valo 1595e705c121SKalle Valo /* We support only filter for probe requests */ 1596e705c121SKalle Valo if (!(changed_flags & FIF_PROBE_REQ)) 1597e705c121SKalle Valo return; 1598e705c121SKalle Valo 1599e705c121SKalle Valo /* Supported only for p2p client interfaces */ 1600e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || 1601e705c121SKalle Valo !vif->p2p) 1602e705c121SKalle Valo return; 1603e705c121SKalle Valo 1604e705c121SKalle Valo mutex_lock(&mvm->mutex); 1605e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1606e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1607e705c121SKalle Valo } 1608e705c121SKalle Valo 1609e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1610e705c121SKalle Valo struct iwl_bcast_iter_data { 1611e705c121SKalle Valo struct iwl_mvm *mvm; 1612e705c121SKalle Valo struct iwl_bcast_filter_cmd *cmd; 1613e705c121SKalle Valo u8 current_filter; 1614e705c121SKalle Valo }; 1615e705c121SKalle Valo 1616e705c121SKalle Valo static void 1617e705c121SKalle Valo iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, 1618e705c121SKalle Valo const struct iwl_fw_bcast_filter *in_filter, 1619e705c121SKalle Valo struct iwl_fw_bcast_filter *out_filter) 1620e705c121SKalle Valo { 1621e705c121SKalle Valo struct iwl_fw_bcast_filter_attr *attr; 1622e705c121SKalle Valo int i; 1623e705c121SKalle Valo 1624e705c121SKalle Valo memcpy(out_filter, in_filter, sizeof(*out_filter)); 1625e705c121SKalle Valo 1626e705c121SKalle Valo for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { 1627e705c121SKalle Valo attr = &out_filter->attrs[i]; 1628e705c121SKalle Valo 1629e705c121SKalle Valo if (!attr->mask) 1630e705c121SKalle Valo break; 1631e705c121SKalle Valo 1632e705c121SKalle Valo switch (attr->reserved1) { 1633e705c121SKalle Valo case cpu_to_le16(BC_FILTER_MAGIC_IP): 1634e705c121SKalle Valo if (vif->bss_conf.arp_addr_cnt != 1) { 1635e705c121SKalle Valo attr->mask = 0; 1636e705c121SKalle Valo continue; 1637e705c121SKalle Valo } 1638e705c121SKalle Valo 1639e705c121SKalle Valo attr->val = vif->bss_conf.arp_addr_list[0]; 1640e705c121SKalle Valo break; 1641e705c121SKalle Valo case cpu_to_le16(BC_FILTER_MAGIC_MAC): 1642e705c121SKalle Valo attr->val = *(__be32 *)&vif->addr[2]; 1643e705c121SKalle Valo break; 1644e705c121SKalle Valo default: 1645e705c121SKalle Valo break; 1646e705c121SKalle Valo } 1647e705c121SKalle Valo attr->reserved1 = 0; 1648e705c121SKalle Valo out_filter->num_attrs++; 1649e705c121SKalle Valo } 1650e705c121SKalle Valo } 1651e705c121SKalle Valo 1652e705c121SKalle Valo static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, 1653e705c121SKalle Valo struct ieee80211_vif *vif) 1654e705c121SKalle Valo { 1655e705c121SKalle Valo struct iwl_bcast_iter_data *data = _data; 1656e705c121SKalle Valo struct iwl_mvm *mvm = data->mvm; 1657e705c121SKalle Valo struct iwl_bcast_filter_cmd *cmd = data->cmd; 1658e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1659e705c121SKalle Valo struct iwl_fw_bcast_mac *bcast_mac; 1660e705c121SKalle Valo int i; 1661e705c121SKalle Valo 1662e705c121SKalle Valo if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) 1663e705c121SKalle Valo return; 1664e705c121SKalle Valo 1665e705c121SKalle Valo bcast_mac = &cmd->macs[mvmvif->id]; 1666e705c121SKalle Valo 1667e705c121SKalle Valo /* 1668e705c121SKalle Valo * enable filtering only for associated stations, but not for P2P 1669e705c121SKalle Valo * Clients 1670e705c121SKalle Valo */ 1671e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || 1672e705c121SKalle Valo !vif->bss_conf.assoc) 1673e705c121SKalle Valo return; 1674e705c121SKalle Valo 1675e705c121SKalle Valo bcast_mac->default_discard = 1; 1676e705c121SKalle Valo 1677e705c121SKalle Valo /* copy all configured filters */ 1678e705c121SKalle Valo for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { 1679e705c121SKalle Valo /* 1680e705c121SKalle Valo * Make sure we don't exceed our filters limit. 1681e705c121SKalle Valo * if there is still a valid filter to be configured, 1682e705c121SKalle Valo * be on the safe side and just allow bcast for this mac. 1683e705c121SKalle Valo */ 1684e705c121SKalle Valo if (WARN_ON_ONCE(data->current_filter >= 1685e705c121SKalle Valo ARRAY_SIZE(cmd->filters))) { 1686e705c121SKalle Valo bcast_mac->default_discard = 0; 1687e705c121SKalle Valo bcast_mac->attached_filters = 0; 1688e705c121SKalle Valo break; 1689e705c121SKalle Valo } 1690e705c121SKalle Valo 1691e705c121SKalle Valo iwl_mvm_set_bcast_filter(vif, 1692e705c121SKalle Valo &mvm->bcast_filters[i], 1693e705c121SKalle Valo &cmd->filters[data->current_filter]); 1694e705c121SKalle Valo 1695e705c121SKalle Valo /* skip current filter if it contains no attributes */ 1696e705c121SKalle Valo if (!cmd->filters[data->current_filter].num_attrs) 1697e705c121SKalle Valo continue; 1698e705c121SKalle Valo 1699e705c121SKalle Valo /* attach the filter to current mac */ 1700e705c121SKalle Valo bcast_mac->attached_filters |= 1701e705c121SKalle Valo cpu_to_le16(BIT(data->current_filter)); 1702e705c121SKalle Valo 1703e705c121SKalle Valo data->current_filter++; 1704e705c121SKalle Valo } 1705e705c121SKalle Valo } 1706e705c121SKalle Valo 1707e705c121SKalle Valo bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, 1708e705c121SKalle Valo struct iwl_bcast_filter_cmd *cmd) 1709e705c121SKalle Valo { 1710e705c121SKalle Valo struct iwl_bcast_iter_data iter_data = { 1711e705c121SKalle Valo .mvm = mvm, 1712e705c121SKalle Valo .cmd = cmd, 1713e705c121SKalle Valo }; 1714e705c121SKalle Valo 1715e705c121SKalle Valo if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) 1716e705c121SKalle Valo return false; 1717e705c121SKalle Valo 1718e705c121SKalle Valo memset(cmd, 0, sizeof(*cmd)); 1719e705c121SKalle Valo cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); 1720e705c121SKalle Valo cmd->max_macs = ARRAY_SIZE(cmd->macs); 1721e705c121SKalle Valo 1722e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_DEBUGFS 1723e705c121SKalle Valo /* use debugfs filters/macs if override is configured */ 1724e705c121SKalle Valo if (mvm->dbgfs_bcast_filtering.override) { 1725e705c121SKalle Valo memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, 1726e705c121SKalle Valo sizeof(cmd->filters)); 1727e705c121SKalle Valo memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, 1728e705c121SKalle Valo sizeof(cmd->macs)); 1729e705c121SKalle Valo return true; 1730e705c121SKalle Valo } 1731e705c121SKalle Valo #endif 1732e705c121SKalle Valo 1733e705c121SKalle Valo /* if no filters are configured, do nothing */ 1734e705c121SKalle Valo if (!mvm->bcast_filters) 1735e705c121SKalle Valo return false; 1736e705c121SKalle Valo 1737e705c121SKalle Valo /* configure and attach these filters for each associated sta vif */ 1738e705c121SKalle Valo ieee80211_iterate_active_interfaces( 1739e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1740e705c121SKalle Valo iwl_mvm_bcast_filter_iterator, &iter_data); 1741e705c121SKalle Valo 1742e705c121SKalle Valo return true; 1743e705c121SKalle Valo } 174434672bb3SEliad Peller 174534672bb3SEliad Peller static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1746e705c121SKalle Valo { 1747e705c121SKalle Valo struct iwl_bcast_filter_cmd cmd; 1748e705c121SKalle Valo 1749e705c121SKalle Valo if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) 1750e705c121SKalle Valo return 0; 1751e705c121SKalle Valo 1752e705c121SKalle Valo if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1753e705c121SKalle Valo return 0; 1754e705c121SKalle Valo 1755e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1756e705c121SKalle Valo sizeof(cmd), &cmd); 1757e705c121SKalle Valo } 1758e705c121SKalle Valo #else 175934672bb3SEliad Peller static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1760e705c121SKalle Valo { 1761e705c121SKalle Valo return 0; 1762e705c121SKalle Valo } 1763e705c121SKalle Valo #endif 1764e705c121SKalle Valo 1765e705c121SKalle Valo static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 1766e705c121SKalle Valo struct ieee80211_vif *vif, 1767e705c121SKalle Valo struct ieee80211_bss_conf *bss_conf, 1768e705c121SKalle Valo u32 changes) 1769e705c121SKalle Valo { 1770e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1771e705c121SKalle Valo int ret; 1772e705c121SKalle Valo 1773e705c121SKalle Valo /* 1774e705c121SKalle Valo * Re-calculate the tsf id, as the master-slave relations depend on the 1775e705c121SKalle Valo * beacon interval, which was not known when the station interface was 1776e705c121SKalle Valo * added. 1777e705c121SKalle Valo */ 1778e705c121SKalle Valo if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) 1779e705c121SKalle Valo iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 1780e705c121SKalle Valo 1781e705c121SKalle Valo /* 1782e705c121SKalle Valo * If we're not associated yet, take the (new) BSSID before associating 1783e705c121SKalle Valo * so the firmware knows. If we're already associated, then use the old 1784e705c121SKalle Valo * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 1785e705c121SKalle Valo * branch for disassociation below. 1786e705c121SKalle Valo */ 1787e705c121SKalle Valo if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 1788e705c121SKalle Valo memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 1789e705c121SKalle Valo 1790e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); 1791e705c121SKalle Valo if (ret) 1792e705c121SKalle Valo IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 1793e705c121SKalle Valo 1794e705c121SKalle Valo /* after sending it once, adopt mac80211 data */ 1795e705c121SKalle Valo memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 1796e705c121SKalle Valo mvmvif->associated = bss_conf->assoc; 1797e705c121SKalle Valo 1798e705c121SKalle Valo if (changes & BSS_CHANGED_ASSOC) { 1799e705c121SKalle Valo if (bss_conf->assoc) { 1800e705c121SKalle Valo /* clear statistics to get clean beacon counter */ 1801e705c121SKalle Valo iwl_mvm_request_statistics(mvm, true); 1802e705c121SKalle Valo memset(&mvmvif->beacon_stats, 0, 1803e705c121SKalle Valo sizeof(mvmvif->beacon_stats)); 1804e705c121SKalle Valo 1805e705c121SKalle Valo /* add quota for this interface */ 1806e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, true, NULL); 1807e705c121SKalle Valo if (ret) { 1808e705c121SKalle Valo IWL_ERR(mvm, "failed to update quotas\n"); 1809e705c121SKalle Valo return; 1810e705c121SKalle Valo } 1811e705c121SKalle Valo 1812e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 1813e705c121SKalle Valo &mvm->status)) { 1814e705c121SKalle Valo /* 1815e705c121SKalle Valo * If we're restarting then the firmware will 1816e705c121SKalle Valo * obviously have lost synchronisation with 1817e705c121SKalle Valo * the AP. It will attempt to synchronise by 1818e705c121SKalle Valo * itself, but we can make it more reliable by 1819e705c121SKalle Valo * scheduling a session protection time event. 1820e705c121SKalle Valo * 1821e705c121SKalle Valo * The firmware needs to receive a beacon to 1822e705c121SKalle Valo * catch up with synchronisation, use 110% of 1823e705c121SKalle Valo * the beacon interval. 1824e705c121SKalle Valo * 1825e705c121SKalle Valo * Set a large maximum delay to allow for more 1826e705c121SKalle Valo * than a single interface. 1827e705c121SKalle Valo */ 1828e705c121SKalle Valo u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 1829e705c121SKalle Valo iwl_mvm_protect_session(mvm, vif, dur, dur, 1830e705c121SKalle Valo 5 * dur, false); 1831e705c121SKalle Valo } 1832e705c121SKalle Valo 1833e705c121SKalle Valo iwl_mvm_sf_update(mvm, vif, false); 1834e705c121SKalle Valo iwl_mvm_power_vif_assoc(mvm, vif); 1835e705c121SKalle Valo if (vif->p2p) { 1836e705c121SKalle Valo iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT); 1837e705c121SKalle Valo iwl_mvm_update_smps(mvm, vif, 1838e705c121SKalle Valo IWL_MVM_SMPS_REQ_PROT, 1839e705c121SKalle Valo IEEE80211_SMPS_DYNAMIC); 1840e705c121SKalle Valo } 1841e705c121SKalle Valo } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { 1842e705c121SKalle Valo /* 1843e705c121SKalle Valo * If update fails - SF might be running in associated 1844e705c121SKalle Valo * mode while disassociated - which is forbidden. 1845e705c121SKalle Valo */ 1846e705c121SKalle Valo WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false), 1847e705c121SKalle Valo "Failed to update SF upon disassociation\n"); 1848e705c121SKalle Valo 1849e705c121SKalle Valo /* remove AP station now that the MAC is unassoc */ 1850e705c121SKalle Valo ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id); 1851e705c121SKalle Valo if (ret) 1852e705c121SKalle Valo IWL_ERR(mvm, "failed to remove AP station\n"); 1853e705c121SKalle Valo 1854e705c121SKalle Valo if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) 1855e705c121SKalle Valo mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; 1856e705c121SKalle Valo mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; 1857e705c121SKalle Valo /* remove quota for this interface */ 1858e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, false, NULL); 1859e705c121SKalle Valo if (ret) 1860e705c121SKalle Valo IWL_ERR(mvm, "failed to update quotas\n"); 1861e705c121SKalle Valo 1862e705c121SKalle Valo if (vif->p2p) 1863e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT); 1864e705c121SKalle Valo 1865e705c121SKalle Valo /* this will take the cleared BSSID from bss_conf */ 1866e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1867e705c121SKalle Valo if (ret) 1868e705c121SKalle Valo IWL_ERR(mvm, 1869e705c121SKalle Valo "failed to update MAC %pM (clear after unassoc)\n", 1870e705c121SKalle Valo vif->addr); 1871e705c121SKalle Valo } 1872e705c121SKalle Valo 1873e705c121SKalle Valo iwl_mvm_recalc_multicast(mvm); 187434672bb3SEliad Peller iwl_mvm_configure_bcast_filter(mvm); 1875e705c121SKalle Valo 1876e705c121SKalle Valo /* reset rssi values */ 1877e705c121SKalle Valo mvmvif->bf_data.ave_beacon_signal = 0; 1878e705c121SKalle Valo 1879e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 1880e705c121SKalle Valo iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, 1881e705c121SKalle Valo IEEE80211_SMPS_AUTOMATIC); 1882355346baSAvraham Stern if (fw_has_capa(&mvm->fw->ucode_capa, 1883355346baSAvraham Stern IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 1884355346baSAvraham Stern iwl_mvm_config_scan(mvm); 1885e705c121SKalle Valo } else if (changes & BSS_CHANGED_BEACON_INFO) { 1886e705c121SKalle Valo /* 1887e705c121SKalle Valo * We received a beacon _after_ association so 1888e705c121SKalle Valo * remove the session protection. 1889e705c121SKalle Valo */ 1890e705c121SKalle Valo iwl_mvm_remove_time_event(mvm, mvmvif, 1891e705c121SKalle Valo &mvmvif->time_event_data); 1892e705c121SKalle Valo } 1893e705c121SKalle Valo 1894e705c121SKalle Valo if (changes & BSS_CHANGED_BEACON_INFO) { 1895e705c121SKalle Valo iwl_mvm_sf_update(mvm, vif, false); 1896e705c121SKalle Valo WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 1897e705c121SKalle Valo } 1898e705c121SKalle Valo 1899e705c121SKalle Valo if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) { 1900e705c121SKalle Valo ret = iwl_mvm_power_update_mac(mvm); 1901e705c121SKalle Valo if (ret) 1902e705c121SKalle Valo IWL_ERR(mvm, "failed to update power mode\n"); 1903e705c121SKalle Valo } 1904e705c121SKalle Valo 1905e705c121SKalle Valo if (changes & BSS_CHANGED_TXPOWER) { 1906e705c121SKalle Valo IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 1907e705c121SKalle Valo bss_conf->txpower); 1908e705c121SKalle Valo iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 1909e705c121SKalle Valo } 1910e705c121SKalle Valo 1911e705c121SKalle Valo if (changes & BSS_CHANGED_CQM) { 1912e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 1913e705c121SKalle Valo /* reset cqm events tracking */ 1914e705c121SKalle Valo mvmvif->bf_data.last_cqm_event = 0; 1915e705c121SKalle Valo if (mvmvif->bf_data.bf_enabled) { 1916e705c121SKalle Valo ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1917e705c121SKalle Valo if (ret) 1918e705c121SKalle Valo IWL_ERR(mvm, 1919e705c121SKalle Valo "failed to update CQM thresholds\n"); 1920e705c121SKalle Valo } 1921e705c121SKalle Valo } 1922e705c121SKalle Valo 1923e705c121SKalle Valo if (changes & BSS_CHANGED_ARP_FILTER) { 1924e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); 192534672bb3SEliad Peller iwl_mvm_configure_bcast_filter(mvm); 1926e705c121SKalle Valo } 1927e705c121SKalle Valo } 1928e705c121SKalle Valo 1929e705c121SKalle Valo static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 1930e705c121SKalle Valo struct ieee80211_vif *vif) 1931e705c121SKalle Valo { 1932e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1933e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1934e705c121SKalle Valo int ret; 1935e705c121SKalle Valo 1936e705c121SKalle Valo /* 1937e705c121SKalle Valo * iwl_mvm_mac_ctxt_add() might read directly from the device 1938e705c121SKalle Valo * (the system time), so make sure it is available. 1939e705c121SKalle Valo */ 1940e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP); 1941e705c121SKalle Valo if (ret) 1942e705c121SKalle Valo return ret; 1943e705c121SKalle Valo 1944e705c121SKalle Valo mutex_lock(&mvm->mutex); 1945e705c121SKalle Valo 1946e705c121SKalle Valo /* Send the beacon template */ 1947e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); 1948e705c121SKalle Valo if (ret) 1949e705c121SKalle Valo goto out_unlock; 1950e705c121SKalle Valo 1951e705c121SKalle Valo /* 1952e705c121SKalle Valo * Re-calculate the tsf id, as the master-slave relations depend on the 1953e705c121SKalle Valo * beacon interval, which was not known when the AP interface was added. 1954e705c121SKalle Valo */ 1955e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP) 1956e705c121SKalle Valo iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 1957e705c121SKalle Valo 1958e705c121SKalle Valo mvmvif->ap_assoc_sta_count = 0; 1959e705c121SKalle Valo 1960e705c121SKalle Valo /* Add the mac context */ 1961e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1962e705c121SKalle Valo if (ret) 1963e705c121SKalle Valo goto out_unlock; 1964e705c121SKalle Valo 1965e705c121SKalle Valo /* Perform the binding */ 1966e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 1967e705c121SKalle Valo if (ret) 1968e705c121SKalle Valo goto out_remove; 1969e705c121SKalle Valo 1970e705c121SKalle Valo /* Send the bcast station. At this stage the TBTT and DTIM time events 1971e705c121SKalle Valo * are added and applied to the scheduler */ 1972e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 1973e705c121SKalle Valo if (ret) 1974e705c121SKalle Valo goto out_unbind; 1975e705c121SKalle Valo 1976e705c121SKalle Valo /* must be set before quota calculations */ 1977e705c121SKalle Valo mvmvif->ap_ibss_active = true; 1978e705c121SKalle Valo 1979e705c121SKalle Valo /* power updated needs to be done before quotas */ 1980e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 1981e705c121SKalle Valo 1982e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, false, NULL); 1983e705c121SKalle Valo if (ret) 1984e705c121SKalle Valo goto out_quota_failed; 1985e705c121SKalle Valo 1986e705c121SKalle Valo /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 1987e705c121SKalle Valo if (vif->p2p && mvm->p2p_device_vif) 1988e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 1989e705c121SKalle Valo 1990e705c121SKalle Valo iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS); 1991e705c121SKalle Valo 1992e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 1993e705c121SKalle Valo 1994e705c121SKalle Valo /* we don't support TDLS during DCM */ 1995e705c121SKalle Valo if (iwl_mvm_phy_ctx_count(mvm) > 1) 1996e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 1997e705c121SKalle Valo 1998e705c121SKalle Valo goto out_unlock; 1999e705c121SKalle Valo 2000e705c121SKalle Valo out_quota_failed: 2001e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 2002e705c121SKalle Valo mvmvif->ap_ibss_active = false; 2003e705c121SKalle Valo iwl_mvm_send_rm_bcast_sta(mvm, vif); 2004e705c121SKalle Valo out_unbind: 2005e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 2006e705c121SKalle Valo out_remove: 2007e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 2008e705c121SKalle Valo out_unlock: 2009e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2010e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP); 2011e705c121SKalle Valo return ret; 2012e705c121SKalle Valo } 2013e705c121SKalle Valo 2014e705c121SKalle Valo static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2015e705c121SKalle Valo struct ieee80211_vif *vif) 2016e705c121SKalle Valo { 2017e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2018e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2019e705c121SKalle Valo 2020e705c121SKalle Valo iwl_mvm_prepare_mac_removal(mvm, vif); 2021e705c121SKalle Valo 2022e705c121SKalle Valo mutex_lock(&mvm->mutex); 2023e705c121SKalle Valo 2024e705c121SKalle Valo /* Handle AP stop while in CSA */ 2025e705c121SKalle Valo if (rcu_access_pointer(mvm->csa_vif) == vif) { 2026e705c121SKalle Valo iwl_mvm_remove_time_event(mvm, mvmvif, 2027e705c121SKalle Valo &mvmvif->time_event_data); 2028e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_vif, NULL); 2029e705c121SKalle Valo mvmvif->csa_countdown = false; 2030e705c121SKalle Valo } 2031e705c121SKalle Valo 2032e705c121SKalle Valo if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2033e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2034e705c121SKalle Valo mvm->csa_tx_block_bcn_timeout = 0; 2035e705c121SKalle Valo } 2036e705c121SKalle Valo 2037e705c121SKalle Valo mvmvif->ap_ibss_active = false; 2038e705c121SKalle Valo mvm->ap_last_beacon_gp2 = 0; 2039e705c121SKalle Valo 2040e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 2041e705c121SKalle Valo 2042e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS); 2043e705c121SKalle Valo 2044e705c121SKalle Valo /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2045e705c121SKalle Valo if (vif->p2p && mvm->p2p_device_vif) 2046e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2047e705c121SKalle Valo 2048e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, NULL); 2049e705c121SKalle Valo iwl_mvm_send_rm_bcast_sta(mvm, vif); 2050e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 2051e705c121SKalle Valo 2052e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 2053e705c121SKalle Valo 2054e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 2055e705c121SKalle Valo 2056e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2057e705c121SKalle Valo } 2058e705c121SKalle Valo 2059e705c121SKalle Valo static void 2060e705c121SKalle Valo iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 2061e705c121SKalle Valo struct ieee80211_vif *vif, 2062e705c121SKalle Valo struct ieee80211_bss_conf *bss_conf, 2063e705c121SKalle Valo u32 changes) 2064e705c121SKalle Valo { 2065e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2066e705c121SKalle Valo 2067e705c121SKalle Valo /* Changes will be applied when the AP/IBSS is started */ 2068e705c121SKalle Valo if (!mvmvif->ap_ibss_active) 2069e705c121SKalle Valo return; 2070e705c121SKalle Valo 2071e705c121SKalle Valo if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 2072e705c121SKalle Valo BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 2073e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 2074e705c121SKalle Valo IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2075e705c121SKalle Valo 2076e705c121SKalle Valo /* Need to send a new beacon template to the FW */ 2077e705c121SKalle Valo if (changes & BSS_CHANGED_BEACON && 2078e705c121SKalle Valo iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) 2079e705c121SKalle Valo IWL_WARN(mvm, "Failed updating beacon data\n"); 2080e705c121SKalle Valo 2081e705c121SKalle Valo if (changes & BSS_CHANGED_TXPOWER) { 2082e705c121SKalle Valo IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 2083e705c121SKalle Valo bss_conf->txpower); 2084e705c121SKalle Valo iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2085e705c121SKalle Valo } 2086e705c121SKalle Valo 2087e705c121SKalle Valo } 2088e705c121SKalle Valo 2089e705c121SKalle Valo static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 2090e705c121SKalle Valo struct ieee80211_vif *vif, 2091e705c121SKalle Valo struct ieee80211_bss_conf *bss_conf, 2092e705c121SKalle Valo u32 changes) 2093e705c121SKalle Valo { 2094e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2095e705c121SKalle Valo 2096e705c121SKalle Valo /* 2097e705c121SKalle Valo * iwl_mvm_bss_info_changed_station() might call 2098e705c121SKalle Valo * iwl_mvm_protect_session(), which reads directly from 2099e705c121SKalle Valo * the device (the system time), so make sure it is available. 2100e705c121SKalle Valo */ 2101e705c121SKalle Valo if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED)) 2102e705c121SKalle Valo return; 2103e705c121SKalle Valo 2104e705c121SKalle Valo mutex_lock(&mvm->mutex); 2105e705c121SKalle Valo 2106e705c121SKalle Valo if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) 2107e705c121SKalle Valo iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 2108e705c121SKalle Valo 2109e705c121SKalle Valo switch (vif->type) { 2110e705c121SKalle Valo case NL80211_IFTYPE_STATION: 2111e705c121SKalle Valo iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 2112e705c121SKalle Valo break; 2113e705c121SKalle Valo case NL80211_IFTYPE_AP: 2114e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 2115e705c121SKalle Valo iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 2116e705c121SKalle Valo break; 2117e705c121SKalle Valo default: 2118e705c121SKalle Valo /* shouldn't happen */ 2119e705c121SKalle Valo WARN_ON_ONCE(1); 2120e705c121SKalle Valo } 2121e705c121SKalle Valo 2122e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2123e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED); 2124e705c121SKalle Valo } 2125e705c121SKalle Valo 2126e705c121SKalle Valo static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, 2127e705c121SKalle Valo struct ieee80211_vif *vif, 2128e705c121SKalle Valo struct ieee80211_scan_request *hw_req) 2129e705c121SKalle Valo { 2130e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2131e705c121SKalle Valo int ret; 2132e705c121SKalle Valo 2133e705c121SKalle Valo if (hw_req->req.n_channels == 0 || 2134e705c121SKalle Valo hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 2135e705c121SKalle Valo return -EINVAL; 2136e705c121SKalle Valo 2137e705c121SKalle Valo mutex_lock(&mvm->mutex); 2138e705c121SKalle Valo ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 2139e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2140e705c121SKalle Valo 2141e705c121SKalle Valo return ret; 2142e705c121SKalle Valo } 2143e705c121SKalle Valo 2144e705c121SKalle Valo static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 2145e705c121SKalle Valo struct ieee80211_vif *vif) 2146e705c121SKalle Valo { 2147e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2148e705c121SKalle Valo 2149e705c121SKalle Valo mutex_lock(&mvm->mutex); 2150e705c121SKalle Valo 2151e705c121SKalle Valo /* Due to a race condition, it's possible that mac80211 asks 2152e705c121SKalle Valo * us to stop a hw_scan when it's already stopped. This can 2153e705c121SKalle Valo * happen, for instance, if we stopped the scan ourselves, 2154e705c121SKalle Valo * called ieee80211_scan_completed() and the userspace called 2155e705c121SKalle Valo * cancel scan scan before ieee80211_scan_work() could run. 2156e705c121SKalle Valo * To handle that, simply return if the scan is not running. 2157e705c121SKalle Valo */ 2158e705c121SKalle Valo if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 2159e705c121SKalle Valo iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 2160e705c121SKalle Valo 2161e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2162e705c121SKalle Valo } 2163e705c121SKalle Valo 2164e705c121SKalle Valo static void 2165e705c121SKalle Valo iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 2166e705c121SKalle Valo struct ieee80211_sta *sta, u16 tids, 2167e705c121SKalle Valo int num_frames, 2168e705c121SKalle Valo enum ieee80211_frame_release_type reason, 2169e705c121SKalle Valo bool more_data) 2170e705c121SKalle Valo { 2171e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2172e705c121SKalle Valo 2173e705c121SKalle Valo /* Called when we need to transmit (a) frame(s) from mac80211 */ 2174e705c121SKalle Valo 2175e705c121SKalle Valo iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2176e705c121SKalle Valo tids, more_data, false); 2177e705c121SKalle Valo } 2178e705c121SKalle Valo 2179e705c121SKalle Valo static void 2180e705c121SKalle Valo iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 2181e705c121SKalle Valo struct ieee80211_sta *sta, u16 tids, 2182e705c121SKalle Valo int num_frames, 2183e705c121SKalle Valo enum ieee80211_frame_release_type reason, 2184e705c121SKalle Valo bool more_data) 2185e705c121SKalle Valo { 2186e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2187e705c121SKalle Valo 2188e705c121SKalle Valo /* Called when we need to transmit (a) frame(s) from agg queue */ 2189e705c121SKalle Valo 2190e705c121SKalle Valo iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2191e705c121SKalle Valo tids, more_data, true); 2192e705c121SKalle Valo } 2193e705c121SKalle Valo 2194e705c121SKalle Valo static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2195e705c121SKalle Valo struct ieee80211_vif *vif, 2196e705c121SKalle Valo enum sta_notify_cmd cmd, 2197e705c121SKalle Valo struct ieee80211_sta *sta) 2198e705c121SKalle Valo { 2199e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2200e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2201e705c121SKalle Valo unsigned long txqs = 0, tids = 0; 2202e705c121SKalle Valo int tid; 2203e705c121SKalle Valo 2204e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2205e705c121SKalle Valo for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 2206e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2207e705c121SKalle Valo 2208e705c121SKalle Valo if (tid_data->state != IWL_AGG_ON && 2209e705c121SKalle Valo tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA) 2210e705c121SKalle Valo continue; 2211e705c121SKalle Valo 2212e705c121SKalle Valo __set_bit(tid_data->txq_id, &txqs); 2213e705c121SKalle Valo 2214e705c121SKalle Valo if (iwl_mvm_tid_queued(tid_data) == 0) 2215e705c121SKalle Valo continue; 2216e705c121SKalle Valo 2217e705c121SKalle Valo __set_bit(tid, &tids); 2218e705c121SKalle Valo } 2219e705c121SKalle Valo 2220e705c121SKalle Valo switch (cmd) { 2221e705c121SKalle Valo case STA_NOTIFY_SLEEP: 2222e705c121SKalle Valo if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) 2223e705c121SKalle Valo ieee80211_sta_block_awake(hw, sta, true); 2224e705c121SKalle Valo 2225e705c121SKalle Valo for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 2226e705c121SKalle Valo ieee80211_sta_set_buffered(sta, tid, true); 2227e705c121SKalle Valo 2228e705c121SKalle Valo if (txqs) 2229e705c121SKalle Valo iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 2230e705c121SKalle Valo /* 2231e705c121SKalle Valo * The fw updates the STA to be asleep. Tx packets on the Tx 2232e705c121SKalle Valo * queues to this station will not be transmitted. The fw will 2233e705c121SKalle Valo * send a Tx response with TX_STATUS_FAIL_DEST_PS. 2234e705c121SKalle Valo */ 2235e705c121SKalle Valo break; 2236e705c121SKalle Valo case STA_NOTIFY_AWAKE: 2237e705c121SKalle Valo if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT)) 2238e705c121SKalle Valo break; 2239e705c121SKalle Valo 2240e705c121SKalle Valo if (txqs) 2241e705c121SKalle Valo iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 2242e705c121SKalle Valo iwl_mvm_sta_modify_ps_wake(mvm, sta); 2243e705c121SKalle Valo break; 2244e705c121SKalle Valo default: 2245e705c121SKalle Valo break; 2246e705c121SKalle Valo } 2247e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2248e705c121SKalle Valo } 2249e705c121SKalle Valo 2250e705c121SKalle Valo static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 2251e705c121SKalle Valo struct ieee80211_vif *vif, 2252e705c121SKalle Valo struct ieee80211_sta *sta) 2253e705c121SKalle Valo { 2254e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2255e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2256e705c121SKalle Valo 2257e705c121SKalle Valo /* 2258e705c121SKalle Valo * This is called before mac80211 does RCU synchronisation, 2259e705c121SKalle Valo * so here we already invalidate our internal RCU-protected 2260e705c121SKalle Valo * station pointer. The rest of the code will thus no longer 2261e705c121SKalle Valo * be able to find the station this way, and we don't rely 2262e705c121SKalle Valo * on further RCU synchronisation after the sta_state() 2263e705c121SKalle Valo * callback deleted the station. 2264e705c121SKalle Valo */ 2265e705c121SKalle Valo mutex_lock(&mvm->mutex); 2266e705c121SKalle Valo if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) 2267e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], 2268e705c121SKalle Valo ERR_PTR(-ENOENT)); 2269e705c121SKalle Valo 2270e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2271e705c121SKalle Valo } 2272e705c121SKalle Valo 2273e705c121SKalle Valo static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2274e705c121SKalle Valo const u8 *bssid) 2275e705c121SKalle Valo { 2276e705c121SKalle Valo if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 2277e705c121SKalle Valo return; 2278e705c121SKalle Valo 2279e705c121SKalle Valo if (iwlwifi_mod_params.uapsd_disable) { 2280e705c121SKalle Valo vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2281e705c121SKalle Valo return; 2282e705c121SKalle Valo } 2283e705c121SKalle Valo 2284e705c121SKalle Valo vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 2285e705c121SKalle Valo } 2286e705c121SKalle Valo 22871e8f1329SGolan Ben-Ami static void 22881e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 22891e8f1329SGolan Ben-Ami struct ieee80211_vif *vif, u8 *peer_addr, 22901e8f1329SGolan Ben-Ami enum nl80211_tdls_operation action) 22911e8f1329SGolan Ben-Ami { 22921e8f1329SGolan Ben-Ami struct iwl_fw_dbg_trigger_tlv *trig; 22931e8f1329SGolan Ben-Ami struct iwl_fw_dbg_trigger_tdls *tdls_trig; 22941e8f1329SGolan Ben-Ami 22951e8f1329SGolan Ben-Ami if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS)) 22961e8f1329SGolan Ben-Ami return; 22971e8f1329SGolan Ben-Ami 22981e8f1329SGolan Ben-Ami trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS); 22991e8f1329SGolan Ben-Ami tdls_trig = (void *)trig->data; 23001e8f1329SGolan Ben-Ami if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 23011e8f1329SGolan Ben-Ami return; 23021e8f1329SGolan Ben-Ami 23031e8f1329SGolan Ben-Ami if (!(tdls_trig->action_bitmap & BIT(action))) 23041e8f1329SGolan Ben-Ami return; 23051e8f1329SGolan Ben-Ami 23061e8f1329SGolan Ben-Ami if (tdls_trig->peer_mode && 23071e8f1329SGolan Ben-Ami memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 23081e8f1329SGolan Ben-Ami return; 23091e8f1329SGolan Ben-Ami 23101e8f1329SGolan Ben-Ami iwl_mvm_fw_dbg_collect_trig(mvm, trig, 23111e8f1329SGolan Ben-Ami "TDLS event occurred, peer %pM, action %d", 23121e8f1329SGolan Ben-Ami peer_addr, action); 23131e8f1329SGolan Ben-Ami } 23141e8f1329SGolan Ben-Ami 2315e705c121SKalle Valo static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 2316e705c121SKalle Valo struct ieee80211_vif *vif, 2317e705c121SKalle Valo struct ieee80211_sta *sta, 2318e705c121SKalle Valo enum ieee80211_sta_state old_state, 2319e705c121SKalle Valo enum ieee80211_sta_state new_state) 2320e705c121SKalle Valo { 2321e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2322e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2323e705c121SKalle Valo int ret; 2324e705c121SKalle Valo 2325e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 2326e705c121SKalle Valo sta->addr, old_state, new_state); 2327e705c121SKalle Valo 2328e705c121SKalle Valo /* this would be a mac80211 bug ... but don't crash */ 2329e705c121SKalle Valo if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) 2330e705c121SKalle Valo return -EINVAL; 2331e705c121SKalle Valo 2332e705c121SKalle Valo /* if a STA is being removed, reuse its ID */ 2333e705c121SKalle Valo flush_work(&mvm->sta_drained_wk); 2334e705c121SKalle Valo 2335e705c121SKalle Valo mutex_lock(&mvm->mutex); 2336e705c121SKalle Valo if (old_state == IEEE80211_STA_NOTEXIST && 2337e705c121SKalle Valo new_state == IEEE80211_STA_NONE) { 2338e705c121SKalle Valo /* 2339e705c121SKalle Valo * Firmware bug - it'll crash if the beacon interval is less 2340e705c121SKalle Valo * than 16. We can't avoid connecting at all, so refuse the 2341e705c121SKalle Valo * station state change, this will cause mac80211 to abandon 2342e705c121SKalle Valo * attempts to connect to this AP, and eventually wpa_s will 2343e705c121SKalle Valo * blacklist the AP... 2344e705c121SKalle Valo */ 2345e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 2346e705c121SKalle Valo vif->bss_conf.beacon_int < 16) { 2347e705c121SKalle Valo IWL_ERR(mvm, 2348e705c121SKalle Valo "AP %pM beacon interval is %d, refusing due to firmware bug!\n", 2349e705c121SKalle Valo sta->addr, vif->bss_conf.beacon_int); 2350e705c121SKalle Valo ret = -EINVAL; 2351e705c121SKalle Valo goto out_unlock; 2352e705c121SKalle Valo } 2353e705c121SKalle Valo 2354e705c121SKalle Valo if (sta->tdls && 2355e705c121SKalle Valo (vif->p2p || 2356e705c121SKalle Valo iwl_mvm_tdls_sta_count(mvm, NULL) == 2357e705c121SKalle Valo IWL_MVM_TDLS_STA_COUNT || 2358e705c121SKalle Valo iwl_mvm_phy_ctx_count(mvm) > 1)) { 2359e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 2360e705c121SKalle Valo ret = -EBUSY; 2361e705c121SKalle Valo goto out_unlock; 2362e705c121SKalle Valo } 2363e705c121SKalle Valo 2364e705c121SKalle Valo ret = iwl_mvm_add_sta(mvm, vif, sta); 23651e8f1329SGolan Ben-Ami if (sta->tdls && ret == 0) { 2366e705c121SKalle Valo iwl_mvm_recalc_tdls_state(mvm, vif, true); 23671e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 23681e8f1329SGolan Ben-Ami NL80211_TDLS_SETUP); 23691e8f1329SGolan Ben-Ami } 2370e705c121SKalle Valo } else if (old_state == IEEE80211_STA_NONE && 2371e705c121SKalle Valo new_state == IEEE80211_STA_AUTH) { 2372e705c121SKalle Valo /* 2373e705c121SKalle Valo * EBS may be disabled due to previous failures reported by FW. 2374e705c121SKalle Valo * Reset EBS status here assuming environment has been changed. 2375e705c121SKalle Valo */ 2376e705c121SKalle Valo mvm->last_ebs_successful = true; 2377e705c121SKalle Valo iwl_mvm_check_uapsd(mvm, vif, sta->addr); 2378e705c121SKalle Valo ret = 0; 2379e705c121SKalle Valo } else if (old_state == IEEE80211_STA_AUTH && 2380e705c121SKalle Valo new_state == IEEE80211_STA_ASSOC) { 23818be30c13SAyala Beker if (vif->type == NL80211_IFTYPE_AP) { 23828be30c13SAyala Beker mvmvif->ap_assoc_sta_count++; 23838be30c13SAyala Beker iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 23848be30c13SAyala Beker } 2385e705c121SKalle Valo ret = iwl_mvm_update_sta(mvm, vif, sta); 2386e705c121SKalle Valo if (ret == 0) 2387e705c121SKalle Valo iwl_mvm_rs_rate_init(mvm, sta, 2388e705c121SKalle Valo mvmvif->phy_ctxt->channel->band, 2389e705c121SKalle Valo true); 2390e705c121SKalle Valo } else if (old_state == IEEE80211_STA_ASSOC && 2391e705c121SKalle Valo new_state == IEEE80211_STA_AUTHORIZED) { 2392e705c121SKalle Valo 2393e705c121SKalle Valo /* we don't support TDLS during DCM */ 2394e705c121SKalle Valo if (iwl_mvm_phy_ctx_count(mvm) > 1) 2395e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 2396e705c121SKalle Valo 23971e8f1329SGolan Ben-Ami if (sta->tdls) 23981e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 23991e8f1329SGolan Ben-Ami NL80211_TDLS_ENABLE_LINK); 24001e8f1329SGolan Ben-Ami 2401e705c121SKalle Valo /* enable beacon filtering */ 2402e705c121SKalle Valo WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2403e705c121SKalle Valo ret = 0; 2404e705c121SKalle Valo } else if (old_state == IEEE80211_STA_AUTHORIZED && 2405e705c121SKalle Valo new_state == IEEE80211_STA_ASSOC) { 2406e705c121SKalle Valo /* disable beacon filtering */ 2407e705c121SKalle Valo WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0)); 2408e705c121SKalle Valo ret = 0; 2409e705c121SKalle Valo } else if (old_state == IEEE80211_STA_ASSOC && 2410e705c121SKalle Valo new_state == IEEE80211_STA_AUTH) { 24118be30c13SAyala Beker if (vif->type == NL80211_IFTYPE_AP) { 24128be30c13SAyala Beker mvmvif->ap_assoc_sta_count--; 24138be30c13SAyala Beker iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 24148be30c13SAyala Beker } 2415e705c121SKalle Valo ret = 0; 2416e705c121SKalle Valo } else if (old_state == IEEE80211_STA_AUTH && 2417e705c121SKalle Valo new_state == IEEE80211_STA_NONE) { 2418e705c121SKalle Valo ret = 0; 2419e705c121SKalle Valo } else if (old_state == IEEE80211_STA_NONE && 2420e705c121SKalle Valo new_state == IEEE80211_STA_NOTEXIST) { 2421e705c121SKalle Valo ret = iwl_mvm_rm_sta(mvm, vif, sta); 24221e8f1329SGolan Ben-Ami if (sta->tdls) { 2423e705c121SKalle Valo iwl_mvm_recalc_tdls_state(mvm, vif, false); 24241e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 24251e8f1329SGolan Ben-Ami NL80211_TDLS_DISABLE_LINK); 24261e8f1329SGolan Ben-Ami } 2427e705c121SKalle Valo } else { 2428e705c121SKalle Valo ret = -EIO; 2429e705c121SKalle Valo } 2430e705c121SKalle Valo out_unlock: 2431e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2432e705c121SKalle Valo 2433e705c121SKalle Valo if (sta->tdls && ret == 0) { 2434e705c121SKalle Valo if (old_state == IEEE80211_STA_NOTEXIST && 2435e705c121SKalle Valo new_state == IEEE80211_STA_NONE) 2436e705c121SKalle Valo ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 2437e705c121SKalle Valo else if (old_state == IEEE80211_STA_NONE && 2438e705c121SKalle Valo new_state == IEEE80211_STA_NOTEXIST) 2439e705c121SKalle Valo ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 2440e705c121SKalle Valo } 2441e705c121SKalle Valo 2442e705c121SKalle Valo return ret; 2443e705c121SKalle Valo } 2444e705c121SKalle Valo 2445e705c121SKalle Valo static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 2446e705c121SKalle Valo { 2447e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2448e705c121SKalle Valo 2449e705c121SKalle Valo mvm->rts_threshold = value; 2450e705c121SKalle Valo 2451e705c121SKalle Valo return 0; 2452e705c121SKalle Valo } 2453e705c121SKalle Valo 2454e705c121SKalle Valo static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, 2455e705c121SKalle Valo struct ieee80211_vif *vif, 2456e705c121SKalle Valo struct ieee80211_sta *sta, u32 changed) 2457e705c121SKalle Valo { 2458e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2459e705c121SKalle Valo 2460e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 2461e705c121SKalle Valo changed & IEEE80211_RC_NSS_CHANGED) 2462e705c121SKalle Valo iwl_mvm_sf_update(mvm, vif, false); 2463e705c121SKalle Valo } 2464e705c121SKalle Valo 2465e705c121SKalle Valo static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 2466e705c121SKalle Valo struct ieee80211_vif *vif, u16 ac, 2467e705c121SKalle Valo const struct ieee80211_tx_queue_params *params) 2468e705c121SKalle Valo { 2469e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2470e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2471e705c121SKalle Valo 2472e705c121SKalle Valo mvmvif->queue_params[ac] = *params; 2473e705c121SKalle Valo 2474e705c121SKalle Valo /* 2475e705c121SKalle Valo * No need to update right away, we'll get BSS_CHANGED_QOS 2476e705c121SKalle Valo * The exception is P2P_DEVICE interface which needs immediate update. 2477e705c121SKalle Valo */ 2478e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 2479e705c121SKalle Valo int ret; 2480e705c121SKalle Valo 2481e705c121SKalle Valo mutex_lock(&mvm->mutex); 2482e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2483e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2484e705c121SKalle Valo return ret; 2485e705c121SKalle Valo } 2486e705c121SKalle Valo return 0; 2487e705c121SKalle Valo } 2488e705c121SKalle Valo 2489e705c121SKalle Valo static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 2490e705c121SKalle Valo struct ieee80211_vif *vif) 2491e705c121SKalle Valo { 2492e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2493e705c121SKalle Valo u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS, 2494e705c121SKalle Valo 200 + vif->bss_conf.beacon_int); 2495e705c121SKalle Valo u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS, 2496e705c121SKalle Valo 100 + vif->bss_conf.beacon_int); 2497e705c121SKalle Valo 2498e705c121SKalle Valo if (WARN_ON_ONCE(vif->bss_conf.assoc)) 2499e705c121SKalle Valo return; 2500e705c121SKalle Valo 2501e705c121SKalle Valo /* 2502e705c121SKalle Valo * iwl_mvm_protect_session() reads directly from the device 2503e705c121SKalle Valo * (the system time), so make sure it is available. 2504e705c121SKalle Valo */ 2505e705c121SKalle Valo if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX)) 2506e705c121SKalle Valo return; 2507e705c121SKalle Valo 2508e705c121SKalle Valo mutex_lock(&mvm->mutex); 2509e705c121SKalle Valo /* Try really hard to protect the session and hear a beacon */ 2510e705c121SKalle Valo iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false); 2511e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2512e705c121SKalle Valo 2513e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX); 2514e705c121SKalle Valo } 2515e705c121SKalle Valo 2516e705c121SKalle Valo static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 2517e705c121SKalle Valo struct ieee80211_vif *vif, 2518e705c121SKalle Valo struct cfg80211_sched_scan_request *req, 2519e705c121SKalle Valo struct ieee80211_scan_ies *ies) 2520e705c121SKalle Valo { 2521e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2522e705c121SKalle Valo 2523e705c121SKalle Valo int ret; 2524e705c121SKalle Valo 2525e705c121SKalle Valo mutex_lock(&mvm->mutex); 2526e705c121SKalle Valo 2527e705c121SKalle Valo if (!vif->bss_conf.idle) { 2528e705c121SKalle Valo ret = -EBUSY; 2529e705c121SKalle Valo goto out; 2530e705c121SKalle Valo } 2531e705c121SKalle Valo 2532e705c121SKalle Valo ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 2533e705c121SKalle Valo 2534e705c121SKalle Valo out: 2535e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2536e705c121SKalle Valo return ret; 2537e705c121SKalle Valo } 2538e705c121SKalle Valo 2539e705c121SKalle Valo static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 2540e705c121SKalle Valo struct ieee80211_vif *vif) 2541e705c121SKalle Valo { 2542e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2543e705c121SKalle Valo int ret; 2544e705c121SKalle Valo 2545e705c121SKalle Valo mutex_lock(&mvm->mutex); 2546e705c121SKalle Valo 2547e705c121SKalle Valo /* Due to a race condition, it's possible that mac80211 asks 2548e705c121SKalle Valo * us to stop a sched_scan when it's already stopped. This 2549e705c121SKalle Valo * can happen, for instance, if we stopped the scan ourselves, 2550e705c121SKalle Valo * called ieee80211_sched_scan_stopped() and the userspace called 2551e705c121SKalle Valo * stop sched scan scan before ieee80211_sched_scan_stopped_work() 2552e705c121SKalle Valo * could run. To handle this, simply return if the scan is 2553e705c121SKalle Valo * not running. 2554e705c121SKalle Valo */ 2555e705c121SKalle Valo if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 2556e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2557e705c121SKalle Valo return 0; 2558e705c121SKalle Valo } 2559e705c121SKalle Valo 2560e705c121SKalle Valo ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 2561e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2562e705c121SKalle Valo iwl_mvm_wait_for_async_handlers(mvm); 2563e705c121SKalle Valo 2564e705c121SKalle Valo return ret; 2565e705c121SKalle Valo } 2566e705c121SKalle Valo 2567e705c121SKalle Valo static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 2568e705c121SKalle Valo enum set_key_cmd cmd, 2569e705c121SKalle Valo struct ieee80211_vif *vif, 2570e705c121SKalle Valo struct ieee80211_sta *sta, 2571e705c121SKalle Valo struct ieee80211_key_conf *key) 2572e705c121SKalle Valo { 2573e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2574f5e28eacSJohannes Berg struct iwl_mvm_sta *mvmsta; 2575f5e28eacSJohannes Berg struct iwl_mvm_key_pn *ptk_pn; 2576f5e28eacSJohannes Berg int keyidx = key->keyidx; 2577e705c121SKalle Valo int ret; 25784615fd15SEmmanuel Grumbach u8 key_offset; 2579e705c121SKalle Valo 2580e705c121SKalle Valo if (iwlwifi_mod_params.sw_crypto) { 2581e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); 2582e705c121SKalle Valo return -EOPNOTSUPP; 2583e705c121SKalle Valo } 2584e705c121SKalle Valo 2585e705c121SKalle Valo switch (key->cipher) { 2586e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 2587e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 25881ad4f639SEliad Peller key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 2589e705c121SKalle Valo break; 2590e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 2591e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 2592e705c121SKalle Valo break; 2593e705c121SKalle Valo case WLAN_CIPHER_SUITE_AES_CMAC: 2594e705c121SKalle Valo WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 2595e705c121SKalle Valo break; 2596e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 2597e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 2598e705c121SKalle Valo /* For non-client mode, only use WEP keys for TX as we probably 2599e705c121SKalle Valo * don't have a station yet anyway and would then have to keep 2600e705c121SKalle Valo * track of the keys, linking them to each of the clients/peers 2601e705c121SKalle Valo * as they appear. For now, don't do that, for performance WEP 2602e705c121SKalle Valo * offload doesn't really matter much, but we need it for some 2603e705c121SKalle Valo * other offload features in client mode. 2604e705c121SKalle Valo */ 2605e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION) 2606e705c121SKalle Valo return 0; 2607e705c121SKalle Valo break; 2608e705c121SKalle Valo default: 2609e705c121SKalle Valo /* currently FW supports only one optional cipher scheme */ 2610e705c121SKalle Valo if (hw->n_cipher_schemes && 2611e705c121SKalle Valo hw->cipher_schemes->cipher == key->cipher) 2612e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 2613e705c121SKalle Valo else 2614e705c121SKalle Valo return -EOPNOTSUPP; 2615e705c121SKalle Valo } 2616e705c121SKalle Valo 2617e705c121SKalle Valo mutex_lock(&mvm->mutex); 2618e705c121SKalle Valo 2619e705c121SKalle Valo switch (cmd) { 2620e705c121SKalle Valo case SET_KEY: 2621e705c121SKalle Valo if ((vif->type == NL80211_IFTYPE_ADHOC || 2622e705c121SKalle Valo vif->type == NL80211_IFTYPE_AP) && !sta) { 2623e705c121SKalle Valo /* 2624e705c121SKalle Valo * GTK on AP interface is a TX-only key, return 0; 2625e705c121SKalle Valo * on IBSS they're per-station and because we're lazy 2626e705c121SKalle Valo * we don't support them for RX, so do the same. 2627e705c121SKalle Valo */ 2628e705c121SKalle Valo ret = 0; 2629e705c121SKalle Valo key->hw_key_idx = STA_KEY_IDX_INVALID; 2630e705c121SKalle Valo break; 2631e705c121SKalle Valo } 2632e705c121SKalle Valo 2633e705c121SKalle Valo /* During FW restart, in order to restore the state as it was, 2634e705c121SKalle Valo * don't try to reprogram keys we previously failed for. 2635e705c121SKalle Valo */ 2636e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2637e705c121SKalle Valo key->hw_key_idx == STA_KEY_IDX_INVALID) { 2638e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, 2639e705c121SKalle Valo "skip invalid idx key programming during restart\n"); 2640e705c121SKalle Valo ret = 0; 2641e705c121SKalle Valo break; 2642e705c121SKalle Valo } 2643e705c121SKalle Valo 2644f5e28eacSJohannes Berg if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2645f5e28eacSJohannes Berg sta && iwl_mvm_has_new_rx_api(mvm) && 2646f5e28eacSJohannes Berg key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 2647f5e28eacSJohannes Berg (key->cipher == WLAN_CIPHER_SUITE_CCMP || 2648f5e28eacSJohannes Berg key->cipher == WLAN_CIPHER_SUITE_GCMP)) { 2649f5e28eacSJohannes Berg struct ieee80211_key_seq seq; 2650f5e28eacSJohannes Berg int tid, q; 2651f5e28eacSJohannes Berg 2652f5e28eacSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 2653f5e28eacSJohannes Berg WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 2654f5e28eacSJohannes Berg ptk_pn = kzalloc(sizeof(*ptk_pn) + 2655f5e28eacSJohannes Berg mvm->trans->num_rx_queues * 2656f5e28eacSJohannes Berg sizeof(ptk_pn->q[0]), 2657f5e28eacSJohannes Berg GFP_KERNEL); 2658f5e28eacSJohannes Berg if (!ptk_pn) { 2659f5e28eacSJohannes Berg ret = -ENOMEM; 2660f5e28eacSJohannes Berg break; 2661f5e28eacSJohannes Berg } 2662f5e28eacSJohannes Berg 2663f5e28eacSJohannes Berg for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 2664f5e28eacSJohannes Berg ieee80211_get_key_rx_seq(key, tid, &seq); 2665f5e28eacSJohannes Berg for (q = 0; q < mvm->trans->num_rx_queues; q++) 2666f5e28eacSJohannes Berg memcpy(ptk_pn->q[q].pn[tid], 2667f5e28eacSJohannes Berg seq.ccmp.pn, 2668f5e28eacSJohannes Berg IEEE80211_CCMP_PN_LEN); 2669f5e28eacSJohannes Berg } 2670f5e28eacSJohannes Berg 2671f5e28eacSJohannes Berg rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 2672f5e28eacSJohannes Berg } 2673f5e28eacSJohannes Berg 26744615fd15SEmmanuel Grumbach /* in HW restart reuse the index, otherwise request a new one */ 26754615fd15SEmmanuel Grumbach if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 26764615fd15SEmmanuel Grumbach key_offset = key->hw_key_idx; 26774615fd15SEmmanuel Grumbach else 26784615fd15SEmmanuel Grumbach key_offset = STA_KEY_IDX_INVALID; 26794615fd15SEmmanuel Grumbach 2680e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); 26814615fd15SEmmanuel Grumbach ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 2682e705c121SKalle Valo if (ret) { 2683e705c121SKalle Valo IWL_WARN(mvm, "set key failed\n"); 2684e705c121SKalle Valo /* 2685e705c121SKalle Valo * can't add key for RX, but we don't need it 2686e705c121SKalle Valo * in the device for TX so still return 0 2687e705c121SKalle Valo */ 2688e705c121SKalle Valo key->hw_key_idx = STA_KEY_IDX_INVALID; 2689e705c121SKalle Valo ret = 0; 2690e705c121SKalle Valo } 2691e705c121SKalle Valo 2692e705c121SKalle Valo break; 2693e705c121SKalle Valo case DISABLE_KEY: 2694e705c121SKalle Valo if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 2695e705c121SKalle Valo ret = 0; 2696e705c121SKalle Valo break; 2697e705c121SKalle Valo } 2698e705c121SKalle Valo 2699f5e28eacSJohannes Berg if (sta && iwl_mvm_has_new_rx_api(mvm) && 2700f5e28eacSJohannes Berg key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 2701f5e28eacSJohannes Berg (key->cipher == WLAN_CIPHER_SUITE_CCMP || 2702f5e28eacSJohannes Berg key->cipher == WLAN_CIPHER_SUITE_GCMP)) { 2703f5e28eacSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta); 2704f5e28eacSJohannes Berg ptk_pn = rcu_dereference_protected( 2705f5e28eacSJohannes Berg mvmsta->ptk_pn[keyidx], 2706f5e28eacSJohannes Berg lockdep_is_held(&mvm->mutex)); 2707f5e28eacSJohannes Berg RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 2708f5e28eacSJohannes Berg if (ptk_pn) 2709f5e28eacSJohannes Berg kfree_rcu(ptk_pn, rcu_head); 2710f5e28eacSJohannes Berg } 2711f5e28eacSJohannes Berg 2712e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 2713e705c121SKalle Valo ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 2714e705c121SKalle Valo break; 2715e705c121SKalle Valo default: 2716e705c121SKalle Valo ret = -EINVAL; 2717e705c121SKalle Valo } 2718e705c121SKalle Valo 2719e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2720e705c121SKalle Valo return ret; 2721e705c121SKalle Valo } 2722e705c121SKalle Valo 2723e705c121SKalle Valo static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 2724e705c121SKalle Valo struct ieee80211_vif *vif, 2725e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 2726e705c121SKalle Valo struct ieee80211_sta *sta, 2727e705c121SKalle Valo u32 iv32, u16 *phase1key) 2728e705c121SKalle Valo { 2729e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2730e705c121SKalle Valo 2731e705c121SKalle Valo if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 2732e705c121SKalle Valo return; 2733e705c121SKalle Valo 2734e705c121SKalle Valo iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 2735e705c121SKalle Valo } 2736e705c121SKalle Valo 2737e705c121SKalle Valo 2738e705c121SKalle Valo static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 2739e705c121SKalle Valo struct iwl_rx_packet *pkt, void *data) 2740e705c121SKalle Valo { 2741e705c121SKalle Valo struct iwl_mvm *mvm = 2742e705c121SKalle Valo container_of(notif_wait, struct iwl_mvm, notif_wait); 2743e705c121SKalle Valo struct iwl_hs20_roc_res *resp; 2744e705c121SKalle Valo int resp_len = iwl_rx_packet_payload_len(pkt); 2745e705c121SKalle Valo struct iwl_mvm_time_event_data *te_data = data; 2746e705c121SKalle Valo 2747e705c121SKalle Valo if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 2748e705c121SKalle Valo return true; 2749e705c121SKalle Valo 2750e705c121SKalle Valo if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 2751e705c121SKalle Valo IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 2752e705c121SKalle Valo return true; 2753e705c121SKalle Valo } 2754e705c121SKalle Valo 2755e705c121SKalle Valo resp = (void *)pkt->data; 2756e705c121SKalle Valo 2757e705c121SKalle Valo IWL_DEBUG_TE(mvm, 2758e705c121SKalle Valo "Aux ROC: Recieved response from ucode: status=%d uid=%d\n", 2759e705c121SKalle Valo resp->status, resp->event_unique_id); 2760e705c121SKalle Valo 2761e705c121SKalle Valo te_data->uid = le32_to_cpu(resp->event_unique_id); 2762e705c121SKalle Valo IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 2763e705c121SKalle Valo te_data->uid); 2764e705c121SKalle Valo 2765e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 2766e705c121SKalle Valo list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 2767e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 2768e705c121SKalle Valo 2769e705c121SKalle Valo return true; 2770e705c121SKalle Valo } 2771e705c121SKalle Valo 2772dc28e12fSMatti Gottlieb #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 2773dc28e12fSMatti Gottlieb #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 2774dc28e12fSMatti Gottlieb #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 2775dc28e12fSMatti Gottlieb #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 2776dc28e12fSMatti Gottlieb #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 2777e705c121SKalle Valo static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 2778e705c121SKalle Valo struct ieee80211_channel *channel, 2779e705c121SKalle Valo struct ieee80211_vif *vif, 2780e705c121SKalle Valo int duration) 2781e705c121SKalle Valo { 2782e705c121SKalle Valo int res, time_reg = DEVICE_SYSTEM_TIME_REG; 2783e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2784e705c121SKalle Valo struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 2785e705c121SKalle Valo static const u16 time_event_response[] = { HOT_SPOT_CMD }; 2786e705c121SKalle Valo struct iwl_notification_wait wait_time_event; 2787dc28e12fSMatti Gottlieb u32 dtim_interval = vif->bss_conf.dtim_period * 2788dc28e12fSMatti Gottlieb vif->bss_conf.beacon_int; 2789dc28e12fSMatti Gottlieb u32 req_dur, delay; 2790e705c121SKalle Valo struct iwl_hs20_roc_req aux_roc_req = { 2791e705c121SKalle Valo .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 2792e705c121SKalle Valo .id_and_color = 2793e705c121SKalle Valo cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 2794e705c121SKalle Valo .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 2795e705c121SKalle Valo /* Set the channel info data */ 2796e705c121SKalle Valo .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ? 2797e705c121SKalle Valo PHY_BAND_24 : PHY_BAND_5, 2798e705c121SKalle Valo .channel_info.channel = channel->hw_value, 2799e705c121SKalle Valo .channel_info.width = PHY_VHT_CHANNEL_MODE20, 2800e705c121SKalle Valo /* Set the time and duration */ 2801e705c121SKalle Valo .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)), 2802e705c121SKalle Valo }; 2803e705c121SKalle Valo 2804dc28e12fSMatti Gottlieb delay = AUX_ROC_MIN_DELAY; 2805dc28e12fSMatti Gottlieb req_dur = MSEC_TO_TU(duration); 2806dc28e12fSMatti Gottlieb 2807dc28e12fSMatti Gottlieb /* 2808dc28e12fSMatti Gottlieb * If we are associated we want the delay time to be at least one 2809dc28e12fSMatti Gottlieb * dtim interval so that the FW can wait until after the DTIM and 2810dc28e12fSMatti Gottlieb * then start the time event, this will potentially allow us to 2811dc28e12fSMatti Gottlieb * remain off-channel for the max duration. 2812dc28e12fSMatti Gottlieb * Since we want to use almost a whole dtim interval we would also 2813dc28e12fSMatti Gottlieb * like the delay to be for 2-3 dtim intervals, in case there are 2814dc28e12fSMatti Gottlieb * other time events with higher priority. 2815dc28e12fSMatti Gottlieb */ 2816dc28e12fSMatti Gottlieb if (vif->bss_conf.assoc) { 2817dc28e12fSMatti Gottlieb delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 2818dc28e12fSMatti Gottlieb /* We cannot remain off-channel longer than the DTIM interval */ 2819dc28e12fSMatti Gottlieb if (dtim_interval <= req_dur) { 2820dc28e12fSMatti Gottlieb req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 2821dc28e12fSMatti Gottlieb if (req_dur <= AUX_ROC_MIN_DURATION) 2822dc28e12fSMatti Gottlieb req_dur = dtim_interval - 2823dc28e12fSMatti Gottlieb AUX_ROC_MIN_SAFETY_BUFFER; 2824dc28e12fSMatti Gottlieb } 2825dc28e12fSMatti Gottlieb } 2826dc28e12fSMatti Gottlieb 2827dc28e12fSMatti Gottlieb aux_roc_req.duration = cpu_to_le32(req_dur); 2828dc28e12fSMatti Gottlieb aux_roc_req.apply_time_max_delay = cpu_to_le32(delay); 2829dc28e12fSMatti Gottlieb 2830dc28e12fSMatti Gottlieb IWL_DEBUG_TE(mvm, 2831dc28e12fSMatti Gottlieb "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 2832dc28e12fSMatti Gottlieb channel->hw_value, req_dur, duration, delay, 2833dc28e12fSMatti Gottlieb dtim_interval); 2834e705c121SKalle Valo /* Set the node address */ 2835e705c121SKalle Valo memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN); 2836e705c121SKalle Valo 2837e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2838e705c121SKalle Valo 2839e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 2840e705c121SKalle Valo 2841e705c121SKalle Valo if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 2842e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 2843e705c121SKalle Valo return -EIO; 2844e705c121SKalle Valo } 2845e705c121SKalle Valo 2846e705c121SKalle Valo te_data->vif = vif; 2847e705c121SKalle Valo te_data->duration = duration; 2848e705c121SKalle Valo te_data->id = HOT_SPOT_CMD; 2849e705c121SKalle Valo 2850e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 2851e705c121SKalle Valo 2852e705c121SKalle Valo /* 2853e705c121SKalle Valo * Use a notification wait, which really just processes the 2854e705c121SKalle Valo * command response and doesn't wait for anything, in order 2855e705c121SKalle Valo * to be able to process the response and get the UID inside 2856e705c121SKalle Valo * the RX path. Using CMD_WANT_SKB doesn't work because it 2857e705c121SKalle Valo * stores the buffer and then wakes up this thread, by which 2858e705c121SKalle Valo * time another notification (that the time event started) 2859e705c121SKalle Valo * might already be processed unsuccessfully. 2860e705c121SKalle Valo */ 2861e705c121SKalle Valo iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 2862e705c121SKalle Valo time_event_response, 2863e705c121SKalle Valo ARRAY_SIZE(time_event_response), 2864e705c121SKalle Valo iwl_mvm_rx_aux_roc, te_data); 2865e705c121SKalle Valo 2866e705c121SKalle Valo res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req), 2867e705c121SKalle Valo &aux_roc_req); 2868e705c121SKalle Valo 2869e705c121SKalle Valo if (res) { 2870e705c121SKalle Valo IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 2871e705c121SKalle Valo iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 2872e705c121SKalle Valo goto out_clear_te; 2873e705c121SKalle Valo } 2874e705c121SKalle Valo 2875e705c121SKalle Valo /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 2876e705c121SKalle Valo res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 2877e705c121SKalle Valo /* should never fail */ 2878e705c121SKalle Valo WARN_ON_ONCE(res); 2879e705c121SKalle Valo 2880e705c121SKalle Valo if (res) { 2881e705c121SKalle Valo out_clear_te: 2882e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 2883e705c121SKalle Valo iwl_mvm_te_clear_data(mvm, te_data); 2884e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 2885e705c121SKalle Valo } 2886e705c121SKalle Valo 2887e705c121SKalle Valo return res; 2888e705c121SKalle Valo } 2889e705c121SKalle Valo 2890e705c121SKalle Valo static int iwl_mvm_roc(struct ieee80211_hw *hw, 2891e705c121SKalle Valo struct ieee80211_vif *vif, 2892e705c121SKalle Valo struct ieee80211_channel *channel, 2893e705c121SKalle Valo int duration, 2894e705c121SKalle Valo enum ieee80211_roc_type type) 2895e705c121SKalle Valo { 2896e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2897e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2898e705c121SKalle Valo struct cfg80211_chan_def chandef; 2899e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt; 2900e705c121SKalle Valo int ret, i; 2901e705c121SKalle Valo 2902e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 2903e705c121SKalle Valo duration, type); 2904e705c121SKalle Valo 2905e705c121SKalle Valo flush_work(&mvm->roc_done_wk); 2906e705c121SKalle Valo 2907e705c121SKalle Valo mutex_lock(&mvm->mutex); 2908e705c121SKalle Valo 2909e705c121SKalle Valo switch (vif->type) { 2910e705c121SKalle Valo case NL80211_IFTYPE_STATION: 2911e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 2912e705c121SKalle Valo IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 2913e705c121SKalle Valo /* Use aux roc framework (HS20) */ 2914e705c121SKalle Valo ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 2915e705c121SKalle Valo vif, duration); 2916e705c121SKalle Valo goto out_unlock; 2917e705c121SKalle Valo } 2918e705c121SKalle Valo IWL_ERR(mvm, "hotspot not supported\n"); 2919e705c121SKalle Valo ret = -EINVAL; 2920e705c121SKalle Valo goto out_unlock; 2921e705c121SKalle Valo case NL80211_IFTYPE_P2P_DEVICE: 2922e705c121SKalle Valo /* handle below */ 2923e705c121SKalle Valo break; 2924e705c121SKalle Valo default: 2925e705c121SKalle Valo IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 2926e705c121SKalle Valo ret = -EINVAL; 2927e705c121SKalle Valo goto out_unlock; 2928e705c121SKalle Valo } 2929e705c121SKalle Valo 2930e705c121SKalle Valo for (i = 0; i < NUM_PHY_CTX; i++) { 2931e705c121SKalle Valo phy_ctxt = &mvm->phy_ctxts[i]; 2932e705c121SKalle Valo if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) 2933e705c121SKalle Valo continue; 2934e705c121SKalle Valo 2935e705c121SKalle Valo if (phy_ctxt->ref && channel == phy_ctxt->channel) { 2936e705c121SKalle Valo /* 2937e705c121SKalle Valo * Unbind the P2P_DEVICE from the current PHY context, 2938e705c121SKalle Valo * and if the PHY context is not used remove it. 2939e705c121SKalle Valo */ 2940e705c121SKalle Valo ret = iwl_mvm_binding_remove_vif(mvm, vif); 2941e705c121SKalle Valo if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 2942e705c121SKalle Valo goto out_unlock; 2943e705c121SKalle Valo 2944e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 2945e705c121SKalle Valo 2946e705c121SKalle Valo /* Bind the P2P_DEVICE to the current PHY Context */ 2947e705c121SKalle Valo mvmvif->phy_ctxt = phy_ctxt; 2948e705c121SKalle Valo 2949e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 2950e705c121SKalle Valo if (WARN(ret, "Failed binding P2P_DEVICE\n")) 2951e705c121SKalle Valo goto out_unlock; 2952e705c121SKalle Valo 2953e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 2954e705c121SKalle Valo goto schedule_time_event; 2955e705c121SKalle Valo } 2956e705c121SKalle Valo } 2957e705c121SKalle Valo 2958e705c121SKalle Valo /* Need to update the PHY context only if the ROC channel changed */ 2959e705c121SKalle Valo if (channel == mvmvif->phy_ctxt->channel) 2960e705c121SKalle Valo goto schedule_time_event; 2961e705c121SKalle Valo 2962e705c121SKalle Valo cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 2963e705c121SKalle Valo 2964e705c121SKalle Valo /* 2965e705c121SKalle Valo * Change the PHY context configuration as it is currently referenced 2966e705c121SKalle Valo * only by the P2P Device MAC 2967e705c121SKalle Valo */ 2968e705c121SKalle Valo if (mvmvif->phy_ctxt->ref == 1) { 2969e705c121SKalle Valo ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, 2970e705c121SKalle Valo &chandef, 1, 1); 2971e705c121SKalle Valo if (ret) 2972e705c121SKalle Valo goto out_unlock; 2973e705c121SKalle Valo } else { 2974e705c121SKalle Valo /* 2975e705c121SKalle Valo * The PHY context is shared with other MACs. Need to remove the 2976e705c121SKalle Valo * P2P Device from the binding, allocate an new PHY context and 2977e705c121SKalle Valo * create a new binding 2978e705c121SKalle Valo */ 2979e705c121SKalle Valo phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 2980e705c121SKalle Valo if (!phy_ctxt) { 2981e705c121SKalle Valo ret = -ENOSPC; 2982e705c121SKalle Valo goto out_unlock; 2983e705c121SKalle Valo } 2984e705c121SKalle Valo 2985e705c121SKalle Valo ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 2986e705c121SKalle Valo 1, 1); 2987e705c121SKalle Valo if (ret) { 2988e705c121SKalle Valo IWL_ERR(mvm, "Failed to change PHY context\n"); 2989e705c121SKalle Valo goto out_unlock; 2990e705c121SKalle Valo } 2991e705c121SKalle Valo 2992e705c121SKalle Valo /* Unbind the P2P_DEVICE from the current PHY context */ 2993e705c121SKalle Valo ret = iwl_mvm_binding_remove_vif(mvm, vif); 2994e705c121SKalle Valo if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 2995e705c121SKalle Valo goto out_unlock; 2996e705c121SKalle Valo 2997e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 2998e705c121SKalle Valo 2999e705c121SKalle Valo /* Bind the P2P_DEVICE to the new allocated PHY context */ 3000e705c121SKalle Valo mvmvif->phy_ctxt = phy_ctxt; 3001e705c121SKalle Valo 3002e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 3003e705c121SKalle Valo if (WARN(ret, "Failed binding P2P_DEVICE\n")) 3004e705c121SKalle Valo goto out_unlock; 3005e705c121SKalle Valo 3006e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 3007e705c121SKalle Valo } 3008e705c121SKalle Valo 3009e705c121SKalle Valo schedule_time_event: 3010e705c121SKalle Valo /* Schedule the time events */ 3011e705c121SKalle Valo ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 3012e705c121SKalle Valo 3013e705c121SKalle Valo out_unlock: 3014e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3015e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "leave\n"); 3016e705c121SKalle Valo return ret; 3017e705c121SKalle Valo } 3018e705c121SKalle Valo 3019e705c121SKalle Valo static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) 3020e705c121SKalle Valo { 3021e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3022e705c121SKalle Valo 3023e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "enter\n"); 3024e705c121SKalle Valo 3025e705c121SKalle Valo mutex_lock(&mvm->mutex); 3026e705c121SKalle Valo iwl_mvm_stop_roc(mvm); 3027e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3028e705c121SKalle Valo 3029e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "leave\n"); 3030e705c121SKalle Valo return 0; 3031e705c121SKalle Valo } 3032e705c121SKalle Valo 3033e705c121SKalle Valo static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 3034e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3035e705c121SKalle Valo { 3036e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3037e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt; 3038e705c121SKalle Valo int ret; 3039e705c121SKalle Valo 3040e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3041e705c121SKalle Valo 3042e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 3043e705c121SKalle Valo 3044e705c121SKalle Valo phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 3045e705c121SKalle Valo if (!phy_ctxt) { 3046e705c121SKalle Valo ret = -ENOSPC; 3047e705c121SKalle Valo goto out; 3048e705c121SKalle Valo } 3049e705c121SKalle Valo 3050e705c121SKalle Valo ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, 3051e705c121SKalle Valo ctx->rx_chains_static, 3052e705c121SKalle Valo ctx->rx_chains_dynamic); 3053e705c121SKalle Valo if (ret) { 3054e705c121SKalle Valo IWL_ERR(mvm, "Failed to add PHY context\n"); 3055e705c121SKalle Valo goto out; 3056e705c121SKalle Valo } 3057e705c121SKalle Valo 3058e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 3059e705c121SKalle Valo *phy_ctxt_id = phy_ctxt->id; 3060e705c121SKalle Valo out: 3061e705c121SKalle Valo return ret; 3062e705c121SKalle Valo } 3063e705c121SKalle Valo 3064e705c121SKalle Valo static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 3065e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3066e705c121SKalle Valo { 3067e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3068e705c121SKalle Valo int ret; 3069e705c121SKalle Valo 3070e705c121SKalle Valo mutex_lock(&mvm->mutex); 3071e705c121SKalle Valo ret = __iwl_mvm_add_chanctx(mvm, ctx); 3072e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3073e705c121SKalle Valo 3074e705c121SKalle Valo return ret; 3075e705c121SKalle Valo } 3076e705c121SKalle Valo 3077e705c121SKalle Valo static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 3078e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3079e705c121SKalle Valo { 3080e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3081e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3082e705c121SKalle Valo 3083e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3084e705c121SKalle Valo 3085e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 3086e705c121SKalle Valo } 3087e705c121SKalle Valo 3088e705c121SKalle Valo static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 3089e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3090e705c121SKalle Valo { 3091e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3092e705c121SKalle Valo 3093e705c121SKalle Valo mutex_lock(&mvm->mutex); 3094e705c121SKalle Valo __iwl_mvm_remove_chanctx(mvm, ctx); 3095e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3096e705c121SKalle Valo } 3097e705c121SKalle Valo 3098e705c121SKalle Valo static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 3099e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx, 3100e705c121SKalle Valo u32 changed) 3101e705c121SKalle Valo { 3102e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3103e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3104e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3105e705c121SKalle Valo 3106e705c121SKalle Valo if (WARN_ONCE((phy_ctxt->ref > 1) && 3107e705c121SKalle Valo (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 3108e705c121SKalle Valo IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 3109e705c121SKalle Valo IEEE80211_CHANCTX_CHANGE_RADAR | 3110e705c121SKalle Valo IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 3111e705c121SKalle Valo "Cannot change PHY. Ref=%d, changed=0x%X\n", 3112e705c121SKalle Valo phy_ctxt->ref, changed)) 3113e705c121SKalle Valo return; 3114e705c121SKalle Valo 3115e705c121SKalle Valo mutex_lock(&mvm->mutex); 3116e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 3117e705c121SKalle Valo iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, 3118e705c121SKalle Valo ctx->rx_chains_static, 3119e705c121SKalle Valo ctx->rx_chains_dynamic); 3120e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3121e705c121SKalle Valo } 3122e705c121SKalle Valo 3123e705c121SKalle Valo static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 3124e705c121SKalle Valo struct ieee80211_vif *vif, 3125e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx, 3126e705c121SKalle Valo bool switching_chanctx) 3127e705c121SKalle Valo { 3128e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3129e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3130e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3131e705c121SKalle Valo int ret; 3132e705c121SKalle Valo 3133e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3134e705c121SKalle Valo 3135e705c121SKalle Valo mvmvif->phy_ctxt = phy_ctxt; 3136e705c121SKalle Valo 3137e705c121SKalle Valo switch (vif->type) { 3138e705c121SKalle Valo case NL80211_IFTYPE_AP: 3139e705c121SKalle Valo /* only needed if we're switching chanctx (i.e. during CSA) */ 3140e705c121SKalle Valo if (switching_chanctx) { 3141e705c121SKalle Valo mvmvif->ap_ibss_active = true; 3142e705c121SKalle Valo break; 3143e705c121SKalle Valo } 3144e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 3145e705c121SKalle Valo /* 3146e705c121SKalle Valo * The AP binding flow is handled as part of the start_ap flow 3147e705c121SKalle Valo * (in bss_info_changed), similarly for IBSS. 3148e705c121SKalle Valo */ 3149e705c121SKalle Valo ret = 0; 3150e705c121SKalle Valo goto out; 3151e705c121SKalle Valo case NL80211_IFTYPE_STATION: 3152e705c121SKalle Valo break; 3153e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 3154e705c121SKalle Valo /* always disable PS when a monitor interface is active */ 3155e705c121SKalle Valo mvmvif->ps_disabled = true; 3156e705c121SKalle Valo break; 3157e705c121SKalle Valo default: 3158e705c121SKalle Valo ret = -EINVAL; 3159e705c121SKalle Valo goto out; 3160e705c121SKalle Valo } 3161e705c121SKalle Valo 3162e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 3163e705c121SKalle Valo if (ret) 3164e705c121SKalle Valo goto out; 3165e705c121SKalle Valo 3166e705c121SKalle Valo /* 3167e705c121SKalle Valo * Power state must be updated before quotas, 3168e705c121SKalle Valo * otherwise fw will complain. 3169e705c121SKalle Valo */ 3170e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 3171e705c121SKalle Valo 3172e705c121SKalle Valo /* Setting the quota at this stage is only required for monitor 3173e705c121SKalle Valo * interfaces. For the other types, the bss_info changed flow 3174e705c121SKalle Valo * will handle quota settings. 3175e705c121SKalle Valo */ 3176e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_MONITOR) { 3177e705c121SKalle Valo mvmvif->monitor_active = true; 3178e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, false, NULL); 3179e705c121SKalle Valo if (ret) 3180e705c121SKalle Valo goto out_remove_binding; 31810e39eb03SChaya Rachel Ivgi 31820e39eb03SChaya Rachel Ivgi ret = iwl_mvm_add_snif_sta(mvm, vif); 31830e39eb03SChaya Rachel Ivgi if (ret) 31840e39eb03SChaya Rachel Ivgi goto out_remove_binding; 31850e39eb03SChaya Rachel Ivgi 3186e705c121SKalle Valo } 3187e705c121SKalle Valo 3188e705c121SKalle Valo /* Handle binding during CSA */ 3189e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP) { 3190e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, NULL); 3191e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3192e705c121SKalle Valo } 3193e705c121SKalle Valo 3194e705c121SKalle Valo if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { 3195e705c121SKalle Valo u32 duration = 2 * vif->bss_conf.beacon_int; 3196e705c121SKalle Valo 3197e705c121SKalle Valo /* iwl_mvm_protect_session() reads directly from the 3198e705c121SKalle Valo * device (the system time), so make sure it is 3199e705c121SKalle Valo * available. 3200e705c121SKalle Valo */ 3201e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA); 3202e705c121SKalle Valo if (ret) 3203e705c121SKalle Valo goto out_remove_binding; 3204e705c121SKalle Valo 3205e705c121SKalle Valo /* Protect the session to make sure we hear the first 3206e705c121SKalle Valo * beacon on the new channel. 3207e705c121SKalle Valo */ 3208e705c121SKalle Valo iwl_mvm_protect_session(mvm, vif, duration, duration, 3209e705c121SKalle Valo vif->bss_conf.beacon_int / 2, 3210e705c121SKalle Valo true); 3211e705c121SKalle Valo 3212e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA); 3213e705c121SKalle Valo 3214e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, NULL); 3215e705c121SKalle Valo } 3216e705c121SKalle Valo 3217e705c121SKalle Valo goto out; 3218e705c121SKalle Valo 3219e705c121SKalle Valo out_remove_binding: 3220e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 3221e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 3222e705c121SKalle Valo out: 3223e705c121SKalle Valo if (ret) 3224e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 3225e705c121SKalle Valo return ret; 3226e705c121SKalle Valo } 3227e705c121SKalle Valo static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 3228e705c121SKalle Valo struct ieee80211_vif *vif, 3229e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3230e705c121SKalle Valo { 3231e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3232e705c121SKalle Valo int ret; 3233e705c121SKalle Valo 3234e705c121SKalle Valo mutex_lock(&mvm->mutex); 3235e705c121SKalle Valo ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); 3236e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3237e705c121SKalle Valo 3238e705c121SKalle Valo return ret; 3239e705c121SKalle Valo } 3240e705c121SKalle Valo 3241e705c121SKalle Valo static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 3242e705c121SKalle Valo struct ieee80211_vif *vif, 3243e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx, 3244e705c121SKalle Valo bool switching_chanctx) 3245e705c121SKalle Valo { 3246e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3247e705c121SKalle Valo struct ieee80211_vif *disabled_vif = NULL; 3248e705c121SKalle Valo 3249e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3250e705c121SKalle Valo 3251e705c121SKalle Valo iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); 3252e705c121SKalle Valo 3253e705c121SKalle Valo switch (vif->type) { 3254e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 3255e705c121SKalle Valo goto out; 3256e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 3257e705c121SKalle Valo mvmvif->monitor_active = false; 3258e705c121SKalle Valo mvmvif->ps_disabled = false; 32590e39eb03SChaya Rachel Ivgi iwl_mvm_rm_snif_sta(mvm, vif); 3260e705c121SKalle Valo break; 3261e705c121SKalle Valo case NL80211_IFTYPE_AP: 3262e705c121SKalle Valo /* This part is triggered only during CSA */ 3263e705c121SKalle Valo if (!switching_chanctx || !mvmvif->ap_ibss_active) 3264e705c121SKalle Valo goto out; 3265e705c121SKalle Valo 3266e705c121SKalle Valo mvmvif->csa_countdown = false; 3267e705c121SKalle Valo 3268e705c121SKalle Valo /* Set CS bit on all the stations */ 3269e705c121SKalle Valo iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 3270e705c121SKalle Valo 3271e705c121SKalle Valo /* Save blocked iface, the timeout is set on the next beacon */ 3272e705c121SKalle Valo rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 3273e705c121SKalle Valo 3274e705c121SKalle Valo mvmvif->ap_ibss_active = false; 3275e705c121SKalle Valo break; 3276e705c121SKalle Valo case NL80211_IFTYPE_STATION: 3277e705c121SKalle Valo if (!switching_chanctx) 3278e705c121SKalle Valo break; 3279e705c121SKalle Valo 3280e705c121SKalle Valo disabled_vif = vif; 3281e705c121SKalle Valo 3282e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 3283e705c121SKalle Valo break; 3284e705c121SKalle Valo default: 3285e705c121SKalle Valo break; 3286e705c121SKalle Valo } 3287e705c121SKalle Valo 3288e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, disabled_vif); 3289e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 3290e705c121SKalle Valo 3291e705c121SKalle Valo out: 3292e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 3293e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 3294e705c121SKalle Valo } 3295e705c121SKalle Valo 3296e705c121SKalle Valo static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 3297e705c121SKalle Valo struct ieee80211_vif *vif, 3298e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3299e705c121SKalle Valo { 3300e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3301e705c121SKalle Valo 3302e705c121SKalle Valo mutex_lock(&mvm->mutex); 3303e705c121SKalle Valo __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); 3304e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3305e705c121SKalle Valo } 3306e705c121SKalle Valo 3307e705c121SKalle Valo static int 3308e705c121SKalle Valo iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 3309e705c121SKalle Valo struct ieee80211_vif_chanctx_switch *vifs) 3310e705c121SKalle Valo { 3311e705c121SKalle Valo int ret; 3312e705c121SKalle Valo 3313e705c121SKalle Valo mutex_lock(&mvm->mutex); 3314e705c121SKalle Valo __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 3315e705c121SKalle Valo __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 3316e705c121SKalle Valo 3317e705c121SKalle Valo ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 3318e705c121SKalle Valo if (ret) { 3319e705c121SKalle Valo IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 3320e705c121SKalle Valo goto out_reassign; 3321e705c121SKalle Valo } 3322e705c121SKalle Valo 3323e705c121SKalle Valo ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 3324e705c121SKalle Valo true); 3325e705c121SKalle Valo if (ret) { 3326e705c121SKalle Valo IWL_ERR(mvm, 3327e705c121SKalle Valo "failed to assign new_ctx during channel switch\n"); 3328e705c121SKalle Valo goto out_remove; 3329e705c121SKalle Valo } 3330e705c121SKalle Valo 3331e705c121SKalle Valo /* we don't support TDLS during DCM - can be caused by channel switch */ 3332e705c121SKalle Valo if (iwl_mvm_phy_ctx_count(mvm) > 1) 3333e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 3334e705c121SKalle Valo 3335e705c121SKalle Valo goto out; 3336e705c121SKalle Valo 3337e705c121SKalle Valo out_remove: 3338e705c121SKalle Valo __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 3339e705c121SKalle Valo 3340e705c121SKalle Valo out_reassign: 3341e705c121SKalle Valo if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 3342e705c121SKalle Valo IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 3343e705c121SKalle Valo goto out_restart; 3344e705c121SKalle Valo } 3345e705c121SKalle Valo 3346e705c121SKalle Valo if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 3347e705c121SKalle Valo true)) { 3348e705c121SKalle Valo IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 3349e705c121SKalle Valo goto out_restart; 3350e705c121SKalle Valo } 3351e705c121SKalle Valo 3352e705c121SKalle Valo goto out; 3353e705c121SKalle Valo 3354e705c121SKalle Valo out_restart: 3355e705c121SKalle Valo /* things keep failing, better restart the hw */ 3356e705c121SKalle Valo iwl_mvm_nic_restart(mvm, false); 3357e705c121SKalle Valo 3358e705c121SKalle Valo out: 3359e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3360e705c121SKalle Valo 3361e705c121SKalle Valo return ret; 3362e705c121SKalle Valo } 3363e705c121SKalle Valo 3364e705c121SKalle Valo static int 3365e705c121SKalle Valo iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 3366e705c121SKalle Valo struct ieee80211_vif_chanctx_switch *vifs) 3367e705c121SKalle Valo { 3368e705c121SKalle Valo int ret; 3369e705c121SKalle Valo 3370e705c121SKalle Valo mutex_lock(&mvm->mutex); 3371e705c121SKalle Valo __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 3372e705c121SKalle Valo 3373e705c121SKalle Valo ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 3374e705c121SKalle Valo true); 3375e705c121SKalle Valo if (ret) { 3376e705c121SKalle Valo IWL_ERR(mvm, 3377e705c121SKalle Valo "failed to assign new_ctx during channel switch\n"); 3378e705c121SKalle Valo goto out_reassign; 3379e705c121SKalle Valo } 3380e705c121SKalle Valo 3381e705c121SKalle Valo goto out; 3382e705c121SKalle Valo 3383e705c121SKalle Valo out_reassign: 3384e705c121SKalle Valo if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 3385e705c121SKalle Valo true)) { 3386e705c121SKalle Valo IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 3387e705c121SKalle Valo goto out_restart; 3388e705c121SKalle Valo } 3389e705c121SKalle Valo 3390e705c121SKalle Valo goto out; 3391e705c121SKalle Valo 3392e705c121SKalle Valo out_restart: 3393e705c121SKalle Valo /* things keep failing, better restart the hw */ 3394e705c121SKalle Valo iwl_mvm_nic_restart(mvm, false); 3395e705c121SKalle Valo 3396e705c121SKalle Valo out: 3397e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3398e705c121SKalle Valo 3399e705c121SKalle Valo return ret; 3400e705c121SKalle Valo } 3401e705c121SKalle Valo 3402e705c121SKalle Valo static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 3403e705c121SKalle Valo struct ieee80211_vif_chanctx_switch *vifs, 3404e705c121SKalle Valo int n_vifs, 3405e705c121SKalle Valo enum ieee80211_chanctx_switch_mode mode) 3406e705c121SKalle Valo { 3407e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3408e705c121SKalle Valo int ret; 3409e705c121SKalle Valo 3410e705c121SKalle Valo /* we only support a single-vif right now */ 3411e705c121SKalle Valo if (n_vifs > 1) 3412e705c121SKalle Valo return -EOPNOTSUPP; 3413e705c121SKalle Valo 3414e705c121SKalle Valo switch (mode) { 3415e705c121SKalle Valo case CHANCTX_SWMODE_SWAP_CONTEXTS: 3416e705c121SKalle Valo ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); 3417e705c121SKalle Valo break; 3418e705c121SKalle Valo case CHANCTX_SWMODE_REASSIGN_VIF: 3419e705c121SKalle Valo ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); 3420e705c121SKalle Valo break; 3421e705c121SKalle Valo default: 3422e705c121SKalle Valo ret = -EOPNOTSUPP; 3423e705c121SKalle Valo break; 3424e705c121SKalle Valo } 3425e705c121SKalle Valo 3426e705c121SKalle Valo return ret; 3427e705c121SKalle Valo } 3428e705c121SKalle Valo 3429e705c121SKalle Valo static int iwl_mvm_set_tim(struct ieee80211_hw *hw, 3430e705c121SKalle Valo struct ieee80211_sta *sta, 3431e705c121SKalle Valo bool set) 3432e705c121SKalle Valo { 3433e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3434e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3435e705c121SKalle Valo 3436e705c121SKalle Valo if (!mvm_sta || !mvm_sta->vif) { 3437e705c121SKalle Valo IWL_ERR(mvm, "Station is not associated to a vif\n"); 3438e705c121SKalle Valo return -EINVAL; 3439e705c121SKalle Valo } 3440e705c121SKalle Valo 3441e705c121SKalle Valo return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); 3442e705c121SKalle Valo } 3443e705c121SKalle Valo 3444e705c121SKalle Valo #ifdef CONFIG_NL80211_TESTMODE 3445e705c121SKalle Valo static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 3446e705c121SKalle Valo [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 3447e705c121SKalle Valo [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 3448e705c121SKalle Valo [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 3449e705c121SKalle Valo }; 3450e705c121SKalle Valo 3451e705c121SKalle Valo static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 3452e705c121SKalle Valo struct ieee80211_vif *vif, 3453e705c121SKalle Valo void *data, int len) 3454e705c121SKalle Valo { 3455e705c121SKalle Valo struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 3456e705c121SKalle Valo int err; 3457e705c121SKalle Valo u32 noa_duration; 3458e705c121SKalle Valo 3459e705c121SKalle Valo err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy); 3460e705c121SKalle Valo if (err) 3461e705c121SKalle Valo return err; 3462e705c121SKalle Valo 3463e705c121SKalle Valo if (!tb[IWL_MVM_TM_ATTR_CMD]) 3464e705c121SKalle Valo return -EINVAL; 3465e705c121SKalle Valo 3466e705c121SKalle Valo switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 3467e705c121SKalle Valo case IWL_MVM_TM_CMD_SET_NOA: 3468e705c121SKalle Valo if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 3469e705c121SKalle Valo !vif->bss_conf.enable_beacon || 3470e705c121SKalle Valo !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 3471e705c121SKalle Valo return -EINVAL; 3472e705c121SKalle Valo 3473e705c121SKalle Valo noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 3474e705c121SKalle Valo if (noa_duration >= vif->bss_conf.beacon_int) 3475e705c121SKalle Valo return -EINVAL; 3476e705c121SKalle Valo 3477e705c121SKalle Valo mvm->noa_duration = noa_duration; 3478e705c121SKalle Valo mvm->noa_vif = vif; 3479e705c121SKalle Valo 3480e705c121SKalle Valo return iwl_mvm_update_quotas(mvm, false, NULL); 3481e705c121SKalle Valo case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 3482e705c121SKalle Valo /* must be associated client vif - ignore authorized */ 3483e705c121SKalle Valo if (!vif || vif->type != NL80211_IFTYPE_STATION || 3484e705c121SKalle Valo !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || 3485e705c121SKalle Valo !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 3486e705c121SKalle Valo return -EINVAL; 3487e705c121SKalle Valo 3488e705c121SKalle Valo if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 3489e705c121SKalle Valo return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 3490e705c121SKalle Valo return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3491e705c121SKalle Valo } 3492e705c121SKalle Valo 3493e705c121SKalle Valo return -EOPNOTSUPP; 3494e705c121SKalle Valo } 3495e705c121SKalle Valo 3496e705c121SKalle Valo static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 3497e705c121SKalle Valo struct ieee80211_vif *vif, 3498e705c121SKalle Valo void *data, int len) 3499e705c121SKalle Valo { 3500e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3501e705c121SKalle Valo int err; 3502e705c121SKalle Valo 3503e705c121SKalle Valo mutex_lock(&mvm->mutex); 3504e705c121SKalle Valo err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 3505e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3506e705c121SKalle Valo 3507e705c121SKalle Valo return err; 3508e705c121SKalle Valo } 3509e705c121SKalle Valo #endif 3510e705c121SKalle Valo 3511e705c121SKalle Valo static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, 3512e705c121SKalle Valo struct ieee80211_vif *vif, 3513e705c121SKalle Valo struct ieee80211_channel_switch *chsw) 3514e705c121SKalle Valo { 3515e705c121SKalle Valo /* By implementing this operation, we prevent mac80211 from 3516e705c121SKalle Valo * starting its own channel switch timer, so that we can call 3517e705c121SKalle Valo * ieee80211_chswitch_done() ourselves at the right time 3518e705c121SKalle Valo * (which is when the absence time event starts). 3519e705c121SKalle Valo */ 3520e705c121SKalle Valo 3521e705c121SKalle Valo IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 3522e705c121SKalle Valo "dummy channel switch op\n"); 3523e705c121SKalle Valo } 3524e705c121SKalle Valo 3525e705c121SKalle Valo static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 3526e705c121SKalle Valo struct ieee80211_vif *vif, 3527e705c121SKalle Valo struct ieee80211_channel_switch *chsw) 3528e705c121SKalle Valo { 3529e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3530e705c121SKalle Valo struct ieee80211_vif *csa_vif; 3531e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3532e705c121SKalle Valo u32 apply_time; 3533e705c121SKalle Valo int ret; 3534e705c121SKalle Valo 3535e705c121SKalle Valo mutex_lock(&mvm->mutex); 3536e705c121SKalle Valo 3537e705c121SKalle Valo mvmvif->csa_failed = false; 3538e705c121SKalle Valo 3539e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 3540e705c121SKalle Valo chsw->chandef.center_freq1); 3541e705c121SKalle Valo 3542e705c121SKalle Valo iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH); 3543e705c121SKalle Valo 3544e705c121SKalle Valo switch (vif->type) { 3545e705c121SKalle Valo case NL80211_IFTYPE_AP: 3546e705c121SKalle Valo csa_vif = 3547e705c121SKalle Valo rcu_dereference_protected(mvm->csa_vif, 3548e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3549e705c121SKalle Valo if (WARN_ONCE(csa_vif && csa_vif->csa_active, 3550e705c121SKalle Valo "Another CSA is already in progress")) { 3551e705c121SKalle Valo ret = -EBUSY; 3552e705c121SKalle Valo goto out_unlock; 3553e705c121SKalle Valo } 3554e705c121SKalle Valo 3555e705c121SKalle Valo rcu_assign_pointer(mvm->csa_vif, vif); 3556e705c121SKalle Valo 3557e705c121SKalle Valo if (WARN_ONCE(mvmvif->csa_countdown, 3558e705c121SKalle Valo "Previous CSA countdown didn't complete")) { 3559e705c121SKalle Valo ret = -EBUSY; 3560e705c121SKalle Valo goto out_unlock; 3561e705c121SKalle Valo } 3562e705c121SKalle Valo 3563e705c121SKalle Valo break; 3564e705c121SKalle Valo case NL80211_IFTYPE_STATION: 3565e705c121SKalle Valo /* Schedule the time event to a bit before beacon 1, 3566e705c121SKalle Valo * to make sure we're in the new channel when the 3567e705c121SKalle Valo * GO/AP arrives. 3568e705c121SKalle Valo */ 3569e705c121SKalle Valo apply_time = chsw->device_timestamp + 3570e705c121SKalle Valo ((vif->bss_conf.beacon_int * (chsw->count - 1) - 3571e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 3572e705c121SKalle Valo 3573e705c121SKalle Valo if (chsw->block_tx) 3574e705c121SKalle Valo iwl_mvm_csa_client_absent(mvm, vif); 3575e705c121SKalle Valo 3576e705c121SKalle Valo iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 3577e705c121SKalle Valo apply_time); 3578e705c121SKalle Valo if (mvmvif->bf_data.bf_enabled) { 3579e705c121SKalle Valo ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3580e705c121SKalle Valo if (ret) 3581e705c121SKalle Valo goto out_unlock; 3582e705c121SKalle Valo } 3583e705c121SKalle Valo 3584e705c121SKalle Valo break; 3585e705c121SKalle Valo default: 3586e705c121SKalle Valo break; 3587e705c121SKalle Valo } 3588e705c121SKalle Valo 3589e705c121SKalle Valo mvmvif->ps_disabled = true; 3590e705c121SKalle Valo 3591e705c121SKalle Valo ret = iwl_mvm_power_update_ps(mvm); 3592e705c121SKalle Valo if (ret) 3593e705c121SKalle Valo goto out_unlock; 3594e705c121SKalle Valo 3595e705c121SKalle Valo /* we won't be on this channel any longer */ 3596e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 3597e705c121SKalle Valo 3598e705c121SKalle Valo out_unlock: 3599e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3600e705c121SKalle Valo 3601e705c121SKalle Valo return ret; 3602e705c121SKalle Valo } 3603e705c121SKalle Valo 3604e705c121SKalle Valo static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 3605e705c121SKalle Valo struct ieee80211_vif *vif) 3606e705c121SKalle Valo { 3607e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3608e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3609e705c121SKalle Valo int ret; 3610e705c121SKalle Valo 3611e705c121SKalle Valo mutex_lock(&mvm->mutex); 3612e705c121SKalle Valo 3613e705c121SKalle Valo if (mvmvif->csa_failed) { 3614e705c121SKalle Valo mvmvif->csa_failed = false; 3615e705c121SKalle Valo ret = -EIO; 3616e705c121SKalle Valo goto out_unlock; 3617e705c121SKalle Valo } 3618e705c121SKalle Valo 3619e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) { 3620e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 3621e705c121SKalle Valo 3622e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 3623e705c121SKalle Valo mvmvif->ap_sta_id); 3624e705c121SKalle Valo 3625e705c121SKalle Valo if (WARN_ON(!mvmsta)) { 3626e705c121SKalle Valo ret = -EIO; 3627e705c121SKalle Valo goto out_unlock; 3628e705c121SKalle Valo } 3629e705c121SKalle Valo 3630e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 3631e705c121SKalle Valo 3632e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3633e705c121SKalle Valo 3634e705c121SKalle Valo ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 3635e705c121SKalle Valo if (ret) 3636e705c121SKalle Valo goto out_unlock; 3637e705c121SKalle Valo 3638e705c121SKalle Valo iwl_mvm_stop_session_protection(mvm, vif); 3639e705c121SKalle Valo } 3640e705c121SKalle Valo 3641e705c121SKalle Valo mvmvif->ps_disabled = false; 3642e705c121SKalle Valo 3643e705c121SKalle Valo ret = iwl_mvm_power_update_ps(mvm); 3644e705c121SKalle Valo 3645e705c121SKalle Valo out_unlock: 3646e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3647e705c121SKalle Valo 3648e705c121SKalle Valo return ret; 3649e705c121SKalle Valo } 3650e705c121SKalle Valo 3651e705c121SKalle Valo static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, 3652e705c121SKalle Valo struct ieee80211_vif *vif, u32 queues, bool drop) 3653e705c121SKalle Valo { 3654e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3655e705c121SKalle Valo struct iwl_mvm_vif *mvmvif; 3656e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 3657e705c121SKalle Valo struct ieee80211_sta *sta; 3658e705c121SKalle Valo int i; 3659e705c121SKalle Valo u32 msk = 0; 3660e705c121SKalle Valo 3661e705c121SKalle Valo if (!vif || vif->type != NL80211_IFTYPE_STATION) 3662e705c121SKalle Valo return; 3663e705c121SKalle Valo 3664e705c121SKalle Valo mutex_lock(&mvm->mutex); 3665e705c121SKalle Valo mvmvif = iwl_mvm_vif_from_mac80211(vif); 3666e705c121SKalle Valo 3667e705c121SKalle Valo /* flush the AP-station and all TDLS peers */ 3668e705c121SKalle Valo for (i = 0; i < IWL_MVM_STATION_COUNT; i++) { 3669e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 3670e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3671e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) 3672e705c121SKalle Valo continue; 3673e705c121SKalle Valo 3674e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_mac80211(sta); 3675e705c121SKalle Valo if (mvmsta->vif != vif) 3676e705c121SKalle Valo continue; 3677e705c121SKalle Valo 3678e705c121SKalle Valo /* make sure only TDLS peers or the AP are flushed */ 3679e705c121SKalle Valo WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); 3680e705c121SKalle Valo 3681e705c121SKalle Valo msk |= mvmsta->tfd_queue_msk; 3682e705c121SKalle Valo } 3683e705c121SKalle Valo 3684e705c121SKalle Valo if (drop) { 3685e705c121SKalle Valo if (iwl_mvm_flush_tx_path(mvm, msk, 0)) 3686e705c121SKalle Valo IWL_ERR(mvm, "flush request fail\n"); 3687e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3688e705c121SKalle Valo } else { 3689e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3690e705c121SKalle Valo 3691e705c121SKalle Valo /* this can take a while, and we may need/want other operations 3692e705c121SKalle Valo * to succeed while doing this, so do it without the mutex held 3693e705c121SKalle Valo */ 3694e705c121SKalle Valo iwl_trans_wait_tx_queue_empty(mvm->trans, msk); 3695e705c121SKalle Valo } 3696e705c121SKalle Valo } 3697e705c121SKalle Valo 3698e705c121SKalle Valo static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 3699e705c121SKalle Valo struct survey_info *survey) 3700e705c121SKalle Valo { 3701e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3702e705c121SKalle Valo int ret; 3703e705c121SKalle Valo 3704e705c121SKalle Valo memset(survey, 0, sizeof(*survey)); 3705e705c121SKalle Valo 3706e705c121SKalle Valo /* only support global statistics right now */ 3707e705c121SKalle Valo if (idx != 0) 3708e705c121SKalle Valo return -ENOENT; 3709e705c121SKalle Valo 3710e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 3711e705c121SKalle Valo IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 3712e705c121SKalle Valo return -ENOENT; 3713e705c121SKalle Valo 3714e705c121SKalle Valo mutex_lock(&mvm->mutex); 3715e705c121SKalle Valo 3716e705c121SKalle Valo if (mvm->ucode_loaded) { 3717e705c121SKalle Valo ret = iwl_mvm_request_statistics(mvm, false); 3718e705c121SKalle Valo if (ret) 3719e705c121SKalle Valo goto out; 3720e705c121SKalle Valo } 3721e705c121SKalle Valo 3722e705c121SKalle Valo survey->filled = SURVEY_INFO_TIME | 3723e705c121SKalle Valo SURVEY_INFO_TIME_RX | 3724e705c121SKalle Valo SURVEY_INFO_TIME_TX | 3725e705c121SKalle Valo SURVEY_INFO_TIME_SCAN; 3726e705c121SKalle Valo survey->time = mvm->accu_radio_stats.on_time_rf + 3727e705c121SKalle Valo mvm->radio_stats.on_time_rf; 3728e705c121SKalle Valo do_div(survey->time, USEC_PER_MSEC); 3729e705c121SKalle Valo 3730e705c121SKalle Valo survey->time_rx = mvm->accu_radio_stats.rx_time + 3731e705c121SKalle Valo mvm->radio_stats.rx_time; 3732e705c121SKalle Valo do_div(survey->time_rx, USEC_PER_MSEC); 3733e705c121SKalle Valo 3734e705c121SKalle Valo survey->time_tx = mvm->accu_radio_stats.tx_time + 3735e705c121SKalle Valo mvm->radio_stats.tx_time; 3736e705c121SKalle Valo do_div(survey->time_tx, USEC_PER_MSEC); 3737e705c121SKalle Valo 3738e705c121SKalle Valo survey->time_scan = mvm->accu_radio_stats.on_time_scan + 3739e705c121SKalle Valo mvm->radio_stats.on_time_scan; 3740e705c121SKalle Valo do_div(survey->time_scan, USEC_PER_MSEC); 3741e705c121SKalle Valo 3742e705c121SKalle Valo ret = 0; 3743e705c121SKalle Valo out: 3744e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3745e705c121SKalle Valo return ret; 3746e705c121SKalle Valo } 3747e705c121SKalle Valo 3748e705c121SKalle Valo static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 3749e705c121SKalle Valo struct ieee80211_vif *vif, 3750e705c121SKalle Valo struct ieee80211_sta *sta, 3751e705c121SKalle Valo struct station_info *sinfo) 3752e705c121SKalle Valo { 3753e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3754e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3755e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3756e705c121SKalle Valo 3757e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 3758e705c121SKalle Valo IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 3759e705c121SKalle Valo return; 3760e705c121SKalle Valo 3761e705c121SKalle Valo /* if beacon filtering isn't on mac80211 does it anyway */ 3762e705c121SKalle Valo if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 3763e705c121SKalle Valo return; 3764e705c121SKalle Valo 3765e705c121SKalle Valo if (!vif->bss_conf.assoc) 3766e705c121SKalle Valo return; 3767e705c121SKalle Valo 3768e705c121SKalle Valo mutex_lock(&mvm->mutex); 3769e705c121SKalle Valo 3770e705c121SKalle Valo if (mvmvif->ap_sta_id != mvmsta->sta_id) 3771e705c121SKalle Valo goto unlock; 3772e705c121SKalle Valo 3773e705c121SKalle Valo if (iwl_mvm_request_statistics(mvm, false)) 3774e705c121SKalle Valo goto unlock; 3775e705c121SKalle Valo 3776e705c121SKalle Valo sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + 3777e705c121SKalle Valo mvmvif->beacon_stats.accu_num_beacons; 3778e705c121SKalle Valo sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX); 3779e705c121SKalle Valo if (mvmvif->beacon_stats.avg_signal) { 3780e705c121SKalle Valo /* firmware only reports a value after RXing a few beacons */ 3781e705c121SKalle Valo sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; 3782e705c121SKalle Valo sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 3783e705c121SKalle Valo } 3784e705c121SKalle Valo unlock: 3785e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3786e705c121SKalle Valo } 3787e705c121SKalle Valo 3788e705c121SKalle Valo static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 3789e705c121SKalle Valo struct ieee80211_vif *vif, 3790e705c121SKalle Valo const struct ieee80211_event *event) 3791e705c121SKalle Valo { 3792e705c121SKalle Valo #define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \ 3793e705c121SKalle Valo do { \ 3794e705c121SKalle Valo if ((_cnt) && --(_cnt)) \ 3795e705c121SKalle Valo break; \ 3796e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\ 3797e705c121SKalle Valo } while (0) 3798e705c121SKalle Valo 3799e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 3800e705c121SKalle Valo struct iwl_fw_dbg_trigger_mlme *trig_mlme; 3801e705c121SKalle Valo 3802e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME)) 3803e705c121SKalle Valo return; 3804e705c121SKalle Valo 3805e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME); 3806e705c121SKalle Valo trig_mlme = (void *)trig->data; 3807e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 3808e705c121SKalle Valo return; 3809e705c121SKalle Valo 3810e705c121SKalle Valo if (event->u.mlme.data == ASSOC_EVENT) { 3811e705c121SKalle Valo if (event->u.mlme.status == MLME_DENIED) 3812e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3813e705c121SKalle Valo trig_mlme->stop_assoc_denied, 3814e705c121SKalle Valo "DENIED ASSOC: reason %d", 3815e705c121SKalle Valo event->u.mlme.reason); 3816e705c121SKalle Valo else if (event->u.mlme.status == MLME_TIMEOUT) 3817e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3818e705c121SKalle Valo trig_mlme->stop_assoc_timeout, 3819e705c121SKalle Valo "ASSOC TIMEOUT"); 3820e705c121SKalle Valo } else if (event->u.mlme.data == AUTH_EVENT) { 3821e705c121SKalle Valo if (event->u.mlme.status == MLME_DENIED) 3822e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3823e705c121SKalle Valo trig_mlme->stop_auth_denied, 3824e705c121SKalle Valo "DENIED AUTH: reason %d", 3825e705c121SKalle Valo event->u.mlme.reason); 3826e705c121SKalle Valo else if (event->u.mlme.status == MLME_TIMEOUT) 3827e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3828e705c121SKalle Valo trig_mlme->stop_auth_timeout, 3829e705c121SKalle Valo "AUTH TIMEOUT"); 3830e705c121SKalle Valo } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 3831e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3832e705c121SKalle Valo trig_mlme->stop_rx_deauth, 3833e705c121SKalle Valo "DEAUTH RX %d", event->u.mlme.reason); 3834e705c121SKalle Valo } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 3835e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3836e705c121SKalle Valo trig_mlme->stop_tx_deauth, 3837e705c121SKalle Valo "DEAUTH TX %d", event->u.mlme.reason); 3838e705c121SKalle Valo } 3839e705c121SKalle Valo #undef CHECK_MLME_TRIGGER 3840e705c121SKalle Valo } 3841e705c121SKalle Valo 3842e705c121SKalle Valo static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 3843e705c121SKalle Valo struct ieee80211_vif *vif, 3844e705c121SKalle Valo const struct ieee80211_event *event) 3845e705c121SKalle Valo { 3846e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 3847e705c121SKalle Valo struct iwl_fw_dbg_trigger_ba *ba_trig; 3848e705c121SKalle Valo 3849e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) 3850e705c121SKalle Valo return; 3851e705c121SKalle Valo 3852e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); 3853e705c121SKalle Valo ba_trig = (void *)trig->data; 3854e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 3855e705c121SKalle Valo return; 3856e705c121SKalle Valo 3857e705c121SKalle Valo if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 3858e705c121SKalle Valo return; 3859e705c121SKalle Valo 3860e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(mvm, trig, 3861e705c121SKalle Valo "BAR received from %pM, tid %d, ssn %d", 3862e705c121SKalle Valo event->u.ba.sta->addr, event->u.ba.tid, 3863e705c121SKalle Valo event->u.ba.ssn); 3864e705c121SKalle Valo } 3865e705c121SKalle Valo 3866e705c121SKalle Valo static void 3867e705c121SKalle Valo iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm, 3868e705c121SKalle Valo struct ieee80211_vif *vif, 3869e705c121SKalle Valo const struct ieee80211_event *event) 3870e705c121SKalle Valo { 3871e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 3872e705c121SKalle Valo struct iwl_fw_dbg_trigger_ba *ba_trig; 3873e705c121SKalle Valo 3874e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) 3875e705c121SKalle Valo return; 3876e705c121SKalle Valo 3877e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); 3878e705c121SKalle Valo ba_trig = (void *)trig->data; 3879e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 3880e705c121SKalle Valo return; 3881e705c121SKalle Valo 3882e705c121SKalle Valo if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid))) 3883e705c121SKalle Valo return; 3884e705c121SKalle Valo 3885e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(mvm, trig, 3886e705c121SKalle Valo "Frame from %pM timed out, tid %d", 3887e705c121SKalle Valo event->u.ba.sta->addr, event->u.ba.tid); 3888e705c121SKalle Valo } 3889e705c121SKalle Valo 3890e705c121SKalle Valo static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 3891e705c121SKalle Valo struct ieee80211_vif *vif, 3892e705c121SKalle Valo const struct ieee80211_event *event) 3893e705c121SKalle Valo { 3894e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3895e705c121SKalle Valo 3896e705c121SKalle Valo switch (event->type) { 3897e705c121SKalle Valo case MLME_EVENT: 3898e705c121SKalle Valo iwl_mvm_event_mlme_callback(mvm, vif, event); 3899e705c121SKalle Valo break; 3900e705c121SKalle Valo case BAR_RX_EVENT: 3901e705c121SKalle Valo iwl_mvm_event_bar_rx_callback(mvm, vif, event); 3902e705c121SKalle Valo break; 3903e705c121SKalle Valo case BA_FRAME_TIMEOUT: 3904e705c121SKalle Valo iwl_mvm_event_frame_timeout_callback(mvm, vif, event); 3905e705c121SKalle Valo break; 3906e705c121SKalle Valo default: 3907e705c121SKalle Valo break; 3908e705c121SKalle Valo } 3909e705c121SKalle Valo } 3910e705c121SKalle Valo 3911e705c121SKalle Valo const struct ieee80211_ops iwl_mvm_hw_ops = { 3912e705c121SKalle Valo .tx = iwl_mvm_mac_tx, 3913e705c121SKalle Valo .ampdu_action = iwl_mvm_mac_ampdu_action, 3914e705c121SKalle Valo .start = iwl_mvm_mac_start, 3915e705c121SKalle Valo .reconfig_complete = iwl_mvm_mac_reconfig_complete, 3916e705c121SKalle Valo .stop = iwl_mvm_mac_stop, 3917e705c121SKalle Valo .add_interface = iwl_mvm_mac_add_interface, 3918e705c121SKalle Valo .remove_interface = iwl_mvm_mac_remove_interface, 3919e705c121SKalle Valo .config = iwl_mvm_mac_config, 3920e705c121SKalle Valo .prepare_multicast = iwl_mvm_prepare_multicast, 3921e705c121SKalle Valo .configure_filter = iwl_mvm_configure_filter, 3922e705c121SKalle Valo .config_iface_filter = iwl_mvm_config_iface_filter, 3923e705c121SKalle Valo .bss_info_changed = iwl_mvm_bss_info_changed, 3924e705c121SKalle Valo .hw_scan = iwl_mvm_mac_hw_scan, 3925e705c121SKalle Valo .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 3926e705c121SKalle Valo .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 3927e705c121SKalle Valo .sta_state = iwl_mvm_mac_sta_state, 3928e705c121SKalle Valo .sta_notify = iwl_mvm_mac_sta_notify, 3929e705c121SKalle Valo .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 3930e705c121SKalle Valo .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 3931e705c121SKalle Valo .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 3932e705c121SKalle Valo .sta_rc_update = iwl_mvm_sta_rc_update, 3933e705c121SKalle Valo .conf_tx = iwl_mvm_mac_conf_tx, 3934e705c121SKalle Valo .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 3935e705c121SKalle Valo .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 3936e705c121SKalle Valo .flush = iwl_mvm_mac_flush, 3937e705c121SKalle Valo .sched_scan_start = iwl_mvm_mac_sched_scan_start, 3938e705c121SKalle Valo .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 3939e705c121SKalle Valo .set_key = iwl_mvm_mac_set_key, 3940e705c121SKalle Valo .update_tkip_key = iwl_mvm_mac_update_tkip_key, 3941e705c121SKalle Valo .remain_on_channel = iwl_mvm_roc, 3942e705c121SKalle Valo .cancel_remain_on_channel = iwl_mvm_cancel_roc, 3943e705c121SKalle Valo .add_chanctx = iwl_mvm_add_chanctx, 3944e705c121SKalle Valo .remove_chanctx = iwl_mvm_remove_chanctx, 3945e705c121SKalle Valo .change_chanctx = iwl_mvm_change_chanctx, 3946e705c121SKalle Valo .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 3947e705c121SKalle Valo .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 3948e705c121SKalle Valo .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 3949e705c121SKalle Valo 3950e705c121SKalle Valo .start_ap = iwl_mvm_start_ap_ibss, 3951e705c121SKalle Valo .stop_ap = iwl_mvm_stop_ap_ibss, 3952e705c121SKalle Valo .join_ibss = iwl_mvm_start_ap_ibss, 3953e705c121SKalle Valo .leave_ibss = iwl_mvm_stop_ap_ibss, 3954e705c121SKalle Valo 3955e705c121SKalle Valo .set_tim = iwl_mvm_set_tim, 3956e705c121SKalle Valo 3957e705c121SKalle Valo .channel_switch = iwl_mvm_channel_switch, 3958e705c121SKalle Valo .pre_channel_switch = iwl_mvm_pre_channel_switch, 3959e705c121SKalle Valo .post_channel_switch = iwl_mvm_post_channel_switch, 3960e705c121SKalle Valo 3961e705c121SKalle Valo .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 3962e705c121SKalle Valo .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 3963e705c121SKalle Valo .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 3964e705c121SKalle Valo 3965e705c121SKalle Valo .event_callback = iwl_mvm_mac_event_callback, 3966e705c121SKalle Valo 3967e705c121SKalle Valo CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 3968e705c121SKalle Valo 3969e705c121SKalle Valo #ifdef CONFIG_PM_SLEEP 3970e705c121SKalle Valo /* look at d3.c */ 3971e705c121SKalle Valo .suspend = iwl_mvm_suspend, 3972e705c121SKalle Valo .resume = iwl_mvm_resume, 3973e705c121SKalle Valo .set_wakeup = iwl_mvm_set_wakeup, 3974e705c121SKalle Valo .set_rekey_data = iwl_mvm_set_rekey_data, 3975e705c121SKalle Valo #if IS_ENABLED(CONFIG_IPV6) 3976e705c121SKalle Valo .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 3977e705c121SKalle Valo #endif 3978e705c121SKalle Valo .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 3979e705c121SKalle Valo #endif 3980e705c121SKalle Valo .get_survey = iwl_mvm_mac_get_survey, 3981e705c121SKalle Valo .sta_statistics = iwl_mvm_mac_sta_statistics, 3982e705c121SKalle Valo }; 3983