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: 29e705c121SKalle Valo * Intel Linux Wireless <ilw@linux.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); 441e705c121SKalle Valo 4422d7cf549SJohannes Berg if (mvm->trans->max_skb_frags) 4432d7cf549SJohannes Berg hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 4442d7cf549SJohannes Berg 445e705c121SKalle Valo hw->queues = mvm->first_agg_queue; 446e705c121SKalle Valo hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 447e705c121SKalle Valo hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 448e705c121SKalle Valo IEEE80211_RADIOTAP_MCS_HAVE_STBC; 449e705c121SKalle Valo hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 450e705c121SKalle Valo IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 451e705c121SKalle Valo hw->rate_control_algorithm = "iwl-mvm-rs"; 452e705c121SKalle Valo hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 453e705c121SKalle Valo hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 454e705c121SKalle Valo 455e705c121SKalle Valo BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 2); 456e705c121SKalle Valo memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 457e705c121SKalle Valo hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 458e705c121SKalle Valo hw->wiphy->cipher_suites = mvm->ciphers; 459e705c121SKalle Valo 460e705c121SKalle Valo /* 461e705c121SKalle Valo * Enable 11w if advertised by firmware and software crypto 462e705c121SKalle Valo * is not enabled (as the firmware will interpret some mgmt 463e705c121SKalle Valo * packets, so enabling it with software crypto isn't safe) 464e705c121SKalle Valo */ 465e705c121SKalle Valo if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && 466e705c121SKalle Valo !iwlwifi_mod_params.sw_crypto) { 467e705c121SKalle Valo ieee80211_hw_set(hw, MFP_CAPABLE); 468e705c121SKalle Valo mvm->ciphers[hw->wiphy->n_cipher_suites] = 469e705c121SKalle Valo WLAN_CIPHER_SUITE_AES_CMAC; 470e705c121SKalle Valo hw->wiphy->n_cipher_suites++; 471e705c121SKalle Valo } 472e705c121SKalle Valo 473e705c121SKalle Valo /* currently FW API supports only one optional cipher scheme */ 474e705c121SKalle Valo if (mvm->fw->cs[0].cipher) { 475e705c121SKalle Valo mvm->hw->n_cipher_schemes = 1; 476e705c121SKalle Valo mvm->hw->cipher_schemes = &mvm->fw->cs[0]; 477e705c121SKalle Valo mvm->ciphers[hw->wiphy->n_cipher_suites] = 478e705c121SKalle Valo mvm->fw->cs[0].cipher; 479e705c121SKalle Valo hw->wiphy->n_cipher_suites++; 480e705c121SKalle Valo } 481e705c121SKalle Valo 482e705c121SKalle Valo ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 483e705c121SKalle Valo hw->wiphy->features |= 484e705c121SKalle Valo NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 485e705c121SKalle Valo NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 486e705c121SKalle Valo NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 487e705c121SKalle Valo 488e705c121SKalle Valo hw->sta_data_size = sizeof(struct iwl_mvm_sta); 489e705c121SKalle Valo hw->vif_data_size = sizeof(struct iwl_mvm_vif); 490e705c121SKalle Valo hw->chanctx_data_size = sizeof(u16); 491e705c121SKalle Valo 492e705c121SKalle Valo hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 493e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_CLIENT) | 494e705c121SKalle Valo BIT(NL80211_IFTYPE_AP) | 495e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_GO) | 496e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_DEVICE) | 497e705c121SKalle Valo BIT(NL80211_IFTYPE_ADHOC); 498e705c121SKalle Valo 499e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 500e705c121SKalle Valo hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 501e705c121SKalle Valo if (iwl_mvm_is_lar_supported(mvm)) 502e705c121SKalle Valo hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 503e705c121SKalle Valo else 504e705c121SKalle Valo hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 505e705c121SKalle Valo REGULATORY_DISABLE_BEACON_HINTS; 506e705c121SKalle Valo 507e705c121SKalle Valo if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD) 508e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 509e705c121SKalle Valo 510e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 511e705c121SKalle Valo 512e705c121SKalle Valo hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 513e705c121SKalle Valo hw->wiphy->n_iface_combinations = 514e705c121SKalle Valo ARRAY_SIZE(iwl_mvm_iface_combinations); 515e705c121SKalle Valo 516e705c121SKalle Valo hw->wiphy->max_remain_on_channel_duration = 10000; 517e705c121SKalle Valo hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 518e705c121SKalle Valo /* we can compensate an offset of up to 3 channels = 15 MHz */ 519e705c121SKalle Valo hw->wiphy->max_adj_channel_rssi_comp = 3 * 5; 520e705c121SKalle Valo 521e705c121SKalle Valo /* Extract MAC address */ 522e705c121SKalle Valo memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 523e705c121SKalle Valo hw->wiphy->addresses = mvm->addresses; 524e705c121SKalle Valo hw->wiphy->n_addresses = 1; 525e705c121SKalle Valo 526e705c121SKalle Valo /* Extract additional MAC addresses if available */ 527e705c121SKalle Valo num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 528e705c121SKalle Valo min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 529e705c121SKalle Valo 530e705c121SKalle Valo for (i = 1; i < num_mac; i++) { 531e705c121SKalle Valo memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 532e705c121SKalle Valo ETH_ALEN); 533e705c121SKalle Valo mvm->addresses[i].addr[5]++; 534e705c121SKalle Valo hw->wiphy->n_addresses++; 535e705c121SKalle Valo } 536e705c121SKalle Valo 537e705c121SKalle Valo iwl_mvm_reset_phy_ctxts(mvm); 538e705c121SKalle Valo 539e705c121SKalle Valo hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 540e705c121SKalle Valo 541e705c121SKalle Valo hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 542e705c121SKalle Valo 543e705c121SKalle Valo BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 544e705c121SKalle Valo BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 545e705c121SKalle Valo IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 546e705c121SKalle Valo 547e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 548e705c121SKalle Valo mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 549e705c121SKalle Valo else 550e705c121SKalle Valo mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 551e705c121SKalle Valo 552e705c121SKalle Valo if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) 553e705c121SKalle Valo hw->wiphy->bands[IEEE80211_BAND_2GHZ] = 554e705c121SKalle Valo &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ]; 555e705c121SKalle Valo if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) { 556e705c121SKalle Valo hw->wiphy->bands[IEEE80211_BAND_5GHZ] = 557e705c121SKalle Valo &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ]; 558e705c121SKalle Valo 559e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 560e705c121SKalle Valo IWL_UCODE_TLV_CAPA_BEAMFORMER) && 561e705c121SKalle Valo fw_has_api(&mvm->fw->ucode_capa, 562e705c121SKalle Valo IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 563e705c121SKalle Valo hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |= 564e705c121SKalle Valo IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 565e705c121SKalle Valo } 566e705c121SKalle Valo 567e705c121SKalle Valo hw->wiphy->hw_version = mvm->trans->hw_id; 568e705c121SKalle Valo 569e705c121SKalle Valo if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 570e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 571e705c121SKalle Valo else 572e705c121SKalle Valo hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 573e705c121SKalle Valo 574e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; 575e705c121SKalle Valo hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 576e705c121SKalle Valo hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; 577e705c121SKalle Valo /* we create the 802.11 header and zero length SSID IE. */ 578e705c121SKalle Valo hw->wiphy->max_sched_scan_ie_len = 579e705c121SKalle Valo SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 580e705c121SKalle Valo hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 581e705c121SKalle Valo hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 582e705c121SKalle Valo 583e705c121SKalle Valo /* 584e705c121SKalle Valo * the firmware uses u8 for num of iterations, but 0xff is saved for 585e705c121SKalle Valo * infinite loop, so the maximum number of iterations is actually 254. 586e705c121SKalle Valo */ 587e705c121SKalle Valo hw->wiphy->max_sched_scan_plan_iterations = 254; 588e705c121SKalle Valo 589e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 590e705c121SKalle Valo NL80211_FEATURE_LOW_PRIORITY_SCAN | 591e705c121SKalle Valo NL80211_FEATURE_P2P_GO_OPPPS | 592e705c121SKalle Valo NL80211_FEATURE_DYNAMIC_SMPS | 593e705c121SKalle Valo NL80211_FEATURE_STATIC_SMPS | 594e705c121SKalle Valo NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 595e705c121SKalle Valo 596e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 597e705c121SKalle Valo IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 598e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 599e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 600e705c121SKalle Valo IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 601e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_QUIET; 602e705c121SKalle Valo 603e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 604e705c121SKalle Valo IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 605e705c121SKalle Valo hw->wiphy->features |= 606e705c121SKalle Valo NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 607e705c121SKalle Valo 608e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 609e705c121SKalle Valo IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 610e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 611e705c121SKalle Valo 612e705c121SKalle Valo mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 613e705c121SKalle Valo 614e705c121SKalle Valo #ifdef CONFIG_PM_SLEEP 615e705c121SKalle Valo if (iwl_mvm_is_d0i3_supported(mvm) && 616e705c121SKalle Valo device_can_wakeup(mvm->trans->dev)) { 617e705c121SKalle Valo mvm->wowlan.flags = WIPHY_WOWLAN_ANY; 618e705c121SKalle Valo hw->wiphy->wowlan = &mvm->wowlan; 619e705c121SKalle Valo } 620e705c121SKalle Valo 621e705c121SKalle Valo if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && 622e705c121SKalle Valo mvm->trans->ops->d3_suspend && 623e705c121SKalle Valo mvm->trans->ops->d3_resume && 624e705c121SKalle Valo device_can_wakeup(mvm->trans->dev)) { 625e705c121SKalle Valo mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 626e705c121SKalle Valo WIPHY_WOWLAN_DISCONNECT | 627e705c121SKalle Valo WIPHY_WOWLAN_EAP_IDENTITY_REQ | 628e705c121SKalle Valo WIPHY_WOWLAN_RFKILL_RELEASE | 629e705c121SKalle Valo WIPHY_WOWLAN_NET_DETECT; 630e705c121SKalle Valo if (!iwlwifi_mod_params.sw_crypto) 631e705c121SKalle Valo mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 632e705c121SKalle Valo WIPHY_WOWLAN_GTK_REKEY_FAILURE | 633e705c121SKalle Valo WIPHY_WOWLAN_4WAY_HANDSHAKE; 634e705c121SKalle Valo 635e705c121SKalle Valo mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 636e705c121SKalle Valo mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 637e705c121SKalle Valo mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 638e705c121SKalle Valo mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES; 639e705c121SKalle Valo mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; 640e705c121SKalle Valo hw->wiphy->wowlan = &mvm->wowlan; 641e705c121SKalle Valo } 642e705c121SKalle Valo #endif 643e705c121SKalle Valo 644e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 645e705c121SKalle Valo /* assign default bcast filtering configuration */ 646e705c121SKalle Valo mvm->bcast_filters = iwl_mvm_default_bcast_filters; 647e705c121SKalle Valo #endif 648e705c121SKalle Valo 649e705c121SKalle Valo ret = iwl_mvm_leds_init(mvm); 650e705c121SKalle Valo if (ret) 651e705c121SKalle Valo return ret; 652e705c121SKalle Valo 653e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 654e705c121SKalle Valo IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 655e705c121SKalle Valo IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 656e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 657e705c121SKalle Valo ieee80211_hw_set(hw, TDLS_WIDER_BW); 658e705c121SKalle Valo } 659e705c121SKalle Valo 660e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 661e705c121SKalle Valo IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 662e705c121SKalle Valo IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 663e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 664e705c121SKalle Valo } 665e705c121SKalle Valo 666e705c121SKalle Valo hw->netdev_features |= mvm->cfg->features; 667e705c121SKalle Valo if (!iwl_mvm_is_csum_supported(mvm)) 668e705c121SKalle Valo hw->netdev_features &= ~NETIF_F_RXCSUM; 669e705c121SKalle Valo 670e705c121SKalle Valo ret = ieee80211_register_hw(mvm->hw); 671e705c121SKalle Valo if (ret) 672e705c121SKalle Valo iwl_mvm_leds_exit(mvm); 673e705c121SKalle Valo 674e705c121SKalle Valo return ret; 675e705c121SKalle Valo } 676e705c121SKalle Valo 677e705c121SKalle Valo static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm, 678e705c121SKalle Valo struct ieee80211_sta *sta, 679e705c121SKalle Valo struct sk_buff *skb) 680e705c121SKalle Valo { 681e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 682e705c121SKalle Valo bool defer = false; 683e705c121SKalle Valo 684e705c121SKalle Valo /* 685e705c121SKalle Valo * double check the IN_D0I3 flag both before and after 686e705c121SKalle Valo * taking the spinlock, in order to prevent taking 687e705c121SKalle Valo * the spinlock when not needed. 688e705c121SKalle Valo */ 689e705c121SKalle Valo if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))) 690e705c121SKalle Valo return false; 691e705c121SKalle Valo 692e705c121SKalle Valo spin_lock(&mvm->d0i3_tx_lock); 693e705c121SKalle Valo /* 694e705c121SKalle Valo * testing the flag again ensures the skb dequeue 695e705c121SKalle Valo * loop (on d0i3 exit) hasn't run yet. 696e705c121SKalle Valo */ 697e705c121SKalle Valo if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) 698e705c121SKalle Valo goto out; 699e705c121SKalle Valo 700e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_mac80211(sta); 701e705c121SKalle Valo if (mvmsta->sta_id == IWL_MVM_STATION_COUNT || 702e705c121SKalle Valo mvmsta->sta_id != mvm->d0i3_ap_sta_id) 703e705c121SKalle Valo goto out; 704e705c121SKalle Valo 705e705c121SKalle Valo __skb_queue_tail(&mvm->d0i3_tx, skb); 706e705c121SKalle Valo ieee80211_stop_queues(mvm->hw); 707e705c121SKalle Valo 708e705c121SKalle Valo /* trigger wakeup */ 709e705c121SKalle Valo iwl_mvm_ref(mvm, IWL_MVM_REF_TX); 710e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_TX); 711e705c121SKalle Valo 712e705c121SKalle Valo defer = true; 713e705c121SKalle Valo out: 714e705c121SKalle Valo spin_unlock(&mvm->d0i3_tx_lock); 715e705c121SKalle Valo return defer; 716e705c121SKalle Valo } 717e705c121SKalle Valo 718e705c121SKalle Valo static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 719e705c121SKalle Valo struct ieee80211_tx_control *control, 720e705c121SKalle Valo struct sk_buff *skb) 721e705c121SKalle Valo { 722e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 723e705c121SKalle Valo struct ieee80211_sta *sta = control->sta; 724e705c121SKalle Valo struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 725e705c121SKalle Valo struct ieee80211_hdr *hdr = (void *)skb->data; 726e705c121SKalle Valo 727e705c121SKalle Valo if (iwl_mvm_is_radio_killed(mvm)) { 728e705c121SKalle Valo IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 729e705c121SKalle Valo goto drop; 730e705c121SKalle Valo } 731e705c121SKalle Valo 732e705c121SKalle Valo if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && 733e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 734e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 735e705c121SKalle Valo goto drop; 736e705c121SKalle Valo 737e705c121SKalle Valo /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */ 738e705c121SKalle Valo if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER && 739e705c121SKalle Valo ieee80211_is_mgmt(hdr->frame_control) && 740e705c121SKalle Valo !ieee80211_is_deauth(hdr->frame_control) && 741e705c121SKalle Valo !ieee80211_is_disassoc(hdr->frame_control) && 742e705c121SKalle Valo !ieee80211_is_action(hdr->frame_control))) 743e705c121SKalle Valo sta = NULL; 744e705c121SKalle Valo 745e705c121SKalle Valo if (sta) { 746e705c121SKalle Valo if (iwl_mvm_defer_tx(mvm, sta, skb)) 747e705c121SKalle Valo return; 748e705c121SKalle Valo if (iwl_mvm_tx_skb(mvm, skb, sta)) 749e705c121SKalle Valo goto drop; 750e705c121SKalle Valo return; 751e705c121SKalle Valo } 752e705c121SKalle Valo 753e705c121SKalle Valo if (iwl_mvm_tx_skb_non_sta(mvm, skb)) 754e705c121SKalle Valo goto drop; 755e705c121SKalle Valo return; 756e705c121SKalle Valo drop: 757e705c121SKalle Valo ieee80211_free_txskb(hw, skb); 758e705c121SKalle Valo } 759e705c121SKalle Valo 760e705c121SKalle Valo static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) 761e705c121SKalle Valo { 762e705c121SKalle Valo if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) 763e705c121SKalle Valo return false; 764e705c121SKalle Valo return true; 765e705c121SKalle Valo } 766e705c121SKalle Valo 767e705c121SKalle Valo static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) 768e705c121SKalle Valo { 769e705c121SKalle Valo if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) 770e705c121SKalle Valo return false; 771e705c121SKalle Valo if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) 772e705c121SKalle Valo return true; 773e705c121SKalle Valo 774e705c121SKalle Valo /* enabled by default */ 775e705c121SKalle Valo return true; 776e705c121SKalle Valo } 777e705c121SKalle Valo 778e705c121SKalle Valo #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 779e705c121SKalle Valo do { \ 780e705c121SKalle Valo if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 781e705c121SKalle Valo break; \ 782e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \ 783e705c121SKalle Valo } while (0) 784e705c121SKalle Valo 785e705c121SKalle Valo static void 786e705c121SKalle Valo iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 787e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 788e705c121SKalle Valo enum ieee80211_ampdu_mlme_action action) 789e705c121SKalle Valo { 790e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 791e705c121SKalle Valo struct iwl_fw_dbg_trigger_ba *ba_trig; 792e705c121SKalle Valo 793e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) 794e705c121SKalle Valo return; 795e705c121SKalle Valo 796e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); 797e705c121SKalle Valo ba_trig = (void *)trig->data; 798e705c121SKalle Valo 799e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 800e705c121SKalle Valo return; 801e705c121SKalle Valo 802e705c121SKalle Valo switch (action) { 803e705c121SKalle Valo case IEEE80211_AMPDU_TX_OPERATIONAL: { 804e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 805e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 806e705c121SKalle Valo 807e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 808e705c121SKalle Valo "TX AGG START: MAC %pM tid %d ssn %d\n", 809e705c121SKalle Valo sta->addr, tid, tid_data->ssn); 810e705c121SKalle Valo break; 811e705c121SKalle Valo } 812e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_CONT: 813e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 814e705c121SKalle Valo "TX AGG STOP: MAC %pM tid %d\n", 815e705c121SKalle Valo sta->addr, tid); 816e705c121SKalle Valo break; 817e705c121SKalle Valo case IEEE80211_AMPDU_RX_START: 818e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 819e705c121SKalle Valo "RX AGG START: MAC %pM tid %d ssn %d\n", 820e705c121SKalle Valo sta->addr, tid, rx_ba_ssn); 821e705c121SKalle Valo break; 822e705c121SKalle Valo case IEEE80211_AMPDU_RX_STOP: 823e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 824e705c121SKalle Valo "RX AGG STOP: MAC %pM tid %d\n", 825e705c121SKalle Valo sta->addr, tid); 826e705c121SKalle Valo break; 827e705c121SKalle Valo default: 828e705c121SKalle Valo break; 829e705c121SKalle Valo } 830e705c121SKalle Valo } 831e705c121SKalle Valo 832e705c121SKalle Valo static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 833e705c121SKalle Valo struct ieee80211_vif *vif, 834e705c121SKalle Valo enum ieee80211_ampdu_mlme_action action, 835e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, 836e705c121SKalle Valo u16 *ssn, u8 buf_size, bool amsdu) 837e705c121SKalle Valo { 838e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 839e705c121SKalle Valo int ret; 840e705c121SKalle Valo bool tx_agg_ref = false; 841e705c121SKalle Valo 842e705c121SKalle Valo IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 843e705c121SKalle Valo sta->addr, tid, action); 844e705c121SKalle Valo 845e705c121SKalle Valo if (!(mvm->nvm_data->sku_cap_11n_enable)) 846e705c121SKalle Valo return -EACCES; 847e705c121SKalle Valo 848e705c121SKalle Valo /* return from D0i3 before starting a new Tx aggregation */ 849e705c121SKalle Valo switch (action) { 850e705c121SKalle Valo case IEEE80211_AMPDU_TX_START: 851e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_CONT: 852e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH: 853e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 854e705c121SKalle Valo case IEEE80211_AMPDU_TX_OPERATIONAL: 855e705c121SKalle Valo /* 856e705c121SKalle Valo * for tx start, wait synchronously until D0i3 exit to 857e705c121SKalle Valo * get the correct sequence number for the tid. 858e705c121SKalle Valo * additionally, some other ampdu actions use direct 859e705c121SKalle Valo * target access, which is not handled automatically 860e705c121SKalle Valo * by the trans layer (unlike commands), so wait for 861e705c121SKalle Valo * d0i3 exit in these cases as well. 862e705c121SKalle Valo */ 863e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG); 864e705c121SKalle Valo if (ret) 865e705c121SKalle Valo return ret; 866e705c121SKalle Valo 867e705c121SKalle Valo tx_agg_ref = true; 868e705c121SKalle Valo break; 869e705c121SKalle Valo default: 870e705c121SKalle Valo break; 871e705c121SKalle Valo } 872e705c121SKalle Valo 873e705c121SKalle Valo mutex_lock(&mvm->mutex); 874e705c121SKalle Valo 875e705c121SKalle Valo switch (action) { 876e705c121SKalle Valo case IEEE80211_AMPDU_RX_START: 877e705c121SKalle Valo if (!iwl_enable_rx_ampdu(mvm->cfg)) { 878e705c121SKalle Valo ret = -EINVAL; 879e705c121SKalle Valo break; 880e705c121SKalle Valo } 881e705c121SKalle Valo ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true); 882e705c121SKalle Valo break; 883e705c121SKalle Valo case IEEE80211_AMPDU_RX_STOP: 884e705c121SKalle Valo ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false); 885e705c121SKalle Valo break; 886e705c121SKalle Valo case IEEE80211_AMPDU_TX_START: 887e705c121SKalle Valo if (!iwl_enable_tx_ampdu(mvm->cfg)) { 888e705c121SKalle Valo ret = -EINVAL; 889e705c121SKalle Valo break; 890e705c121SKalle Valo } 891e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 892e705c121SKalle Valo break; 893e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_CONT: 894e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 895e705c121SKalle Valo break; 896e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH: 897e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 898e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 899e705c121SKalle Valo break; 900e705c121SKalle Valo case IEEE80211_AMPDU_TX_OPERATIONAL: 901e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size); 902e705c121SKalle Valo break; 903e705c121SKalle Valo default: 904e705c121SKalle Valo WARN_ON_ONCE(1); 905e705c121SKalle Valo ret = -EINVAL; 906e705c121SKalle Valo break; 907e705c121SKalle Valo } 908e705c121SKalle Valo 909e705c121SKalle Valo if (!ret) { 910e705c121SKalle Valo u16 rx_ba_ssn = 0; 911e705c121SKalle Valo 912e705c121SKalle Valo if (action == IEEE80211_AMPDU_RX_START) 913e705c121SKalle Valo rx_ba_ssn = *ssn; 914e705c121SKalle Valo 915e705c121SKalle Valo iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 916e705c121SKalle Valo rx_ba_ssn, action); 917e705c121SKalle Valo } 918e705c121SKalle Valo mutex_unlock(&mvm->mutex); 919e705c121SKalle Valo 920e705c121SKalle Valo /* 921e705c121SKalle Valo * If the tid is marked as started, we won't use it for offloaded 922e705c121SKalle Valo * traffic on the next D0i3 entry. It's safe to unref. 923e705c121SKalle Valo */ 924e705c121SKalle Valo if (tx_agg_ref) 925e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); 926e705c121SKalle Valo 927e705c121SKalle Valo return ret; 928e705c121SKalle Valo } 929e705c121SKalle Valo 930e705c121SKalle Valo static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 931e705c121SKalle Valo struct ieee80211_vif *vif) 932e705c121SKalle Valo { 933e705c121SKalle Valo struct iwl_mvm *mvm = data; 934e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 935e705c121SKalle Valo 936e705c121SKalle Valo mvmvif->uploaded = false; 937e705c121SKalle Valo mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; 938e705c121SKalle Valo 939e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 940e705c121SKalle Valo iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 941e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 942e705c121SKalle Valo 943e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 944e705c121SKalle Valo memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 945e705c121SKalle Valo } 946e705c121SKalle Valo 947e705c121SKalle Valo static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 948e705c121SKalle Valo { 949e705c121SKalle Valo /* clear the D3 reconfig, we only need it to avoid dumping a 950e705c121SKalle Valo * firmware coredump on reconfiguration, we shouldn't do that 951e705c121SKalle Valo * on D3->D0 transition 952e705c121SKalle Valo */ 953e705c121SKalle Valo if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) { 954e705c121SKalle Valo mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert; 955e705c121SKalle Valo iwl_mvm_fw_error_dump(mvm); 956e705c121SKalle Valo } 957e705c121SKalle Valo 958e705c121SKalle Valo /* cleanup all stale references (scan, roc), but keep the 959e705c121SKalle Valo * ucode_down ref until reconfig is complete 960e705c121SKalle Valo */ 961e705c121SKalle Valo iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN); 962e705c121SKalle Valo 963e705c121SKalle Valo iwl_trans_stop_device(mvm->trans); 964e705c121SKalle Valo 965e705c121SKalle Valo mvm->scan_status = 0; 966e705c121SKalle Valo mvm->ps_disabled = false; 967e705c121SKalle Valo mvm->calibrating = false; 968e705c121SKalle Valo 969e705c121SKalle Valo /* just in case one was running */ 970305d236eSEliad Peller iwl_mvm_cleanup_roc_te(mvm); 971e705c121SKalle Valo ieee80211_remain_on_channel_expired(mvm->hw); 972e705c121SKalle Valo 973e705c121SKalle Valo /* 974e705c121SKalle Valo * cleanup all interfaces, even inactive ones, as some might have 975e705c121SKalle Valo * gone down during the HW restart 976e705c121SKalle Valo */ 977e705c121SKalle Valo ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 978e705c121SKalle Valo 979e705c121SKalle Valo mvm->p2p_device_vif = NULL; 980e705c121SKalle Valo mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; 981e705c121SKalle Valo 982e705c121SKalle Valo iwl_mvm_reset_phy_ctxts(mvm); 983e705c121SKalle Valo memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); 984e705c121SKalle Valo memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained)); 985e705c121SKalle Valo memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 986e705c121SKalle Valo memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old)); 987e705c121SKalle Valo memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 988e705c121SKalle Valo memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old)); 989e705c121SKalle Valo memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk)); 990e705c121SKalle Valo memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk)); 991e705c121SKalle Valo 992e705c121SKalle Valo ieee80211_wake_queues(mvm->hw); 993e705c121SKalle Valo 994e705c121SKalle Valo /* clear any stale d0i3 state */ 995e705c121SKalle Valo clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); 996e705c121SKalle Valo 997e705c121SKalle Valo mvm->vif_count = 0; 998e705c121SKalle Valo mvm->rx_ba_sessions = 0; 999e705c121SKalle Valo mvm->fw_dbg_conf = FW_DBG_INVALID; 1000355346baSAvraham Stern mvm->scan_type = IWL_SCAN_TYPE_NOT_SET; 1001e705c121SKalle Valo 1002e705c121SKalle Valo /* keep statistics ticking */ 1003e705c121SKalle Valo iwl_mvm_accu_radio_stats(mvm); 1004e705c121SKalle Valo } 1005e705c121SKalle Valo 1006e705c121SKalle Valo int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1007e705c121SKalle Valo { 1008e705c121SKalle Valo int ret; 1009e705c121SKalle Valo 1010e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1011e705c121SKalle Valo 1012a42b2af3SLuca Coelho if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1013e705c121SKalle Valo /* Clean up some internal and mac80211 state on restart */ 1014e705c121SKalle Valo iwl_mvm_restart_cleanup(mvm); 1015a42b2af3SLuca Coelho } else { 1016a42b2af3SLuca Coelho /* Hold the reference to prevent runtime suspend while 1017a42b2af3SLuca Coelho * the start procedure runs. It's a bit confusing 1018a42b2af3SLuca Coelho * that the UCODE_DOWN reference is taken, but it just 1019a42b2af3SLuca Coelho * means "UCODE is not UP yet". ( TODO: rename this 1020a42b2af3SLuca Coelho * reference). 1021a42b2af3SLuca Coelho */ 1022a42b2af3SLuca Coelho iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); 1023a42b2af3SLuca Coelho } 1024e705c121SKalle Valo ret = iwl_mvm_up(mvm); 1025e705c121SKalle Valo 1026e705c121SKalle Valo if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1027e705c121SKalle Valo /* Something went wrong - we need to finish some cleanup 1028e705c121SKalle Valo * that normally iwl_mvm_mac_restart_complete() below 1029e705c121SKalle Valo * would do. 1030e705c121SKalle Valo */ 1031e705c121SKalle Valo clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1032e705c121SKalle Valo iwl_mvm_d0i3_enable_tx(mvm, NULL); 1033e705c121SKalle Valo } 1034e705c121SKalle Valo 1035e705c121SKalle Valo return ret; 1036e705c121SKalle Valo } 1037e705c121SKalle Valo 1038e705c121SKalle Valo static int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1039e705c121SKalle Valo { 1040e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1041e705c121SKalle Valo int ret; 1042e705c121SKalle Valo 1043e705c121SKalle Valo /* Some hw restart cleanups must not hold the mutex */ 1044e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1045e705c121SKalle Valo /* 1046e705c121SKalle Valo * Make sure we are out of d0i3. This is needed 1047e705c121SKalle Valo * to make sure the reference accounting is correct 1048e705c121SKalle Valo * (and there is no stale d0i3_exit_work). 1049e705c121SKalle Valo */ 1050e705c121SKalle Valo wait_event_timeout(mvm->d0i3_exit_waitq, 1051e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_IN_D0I3, 1052e705c121SKalle Valo &mvm->status), 1053e705c121SKalle Valo HZ); 1054e705c121SKalle Valo } 1055e705c121SKalle Valo 1056e705c121SKalle Valo mutex_lock(&mvm->mutex); 1057e705c121SKalle Valo ret = __iwl_mvm_mac_start(mvm); 1058e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1059e705c121SKalle Valo 1060e705c121SKalle Valo return ret; 1061e705c121SKalle Valo } 1062e705c121SKalle Valo 1063e705c121SKalle Valo static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1064e705c121SKalle Valo { 1065e705c121SKalle Valo int ret; 1066e705c121SKalle Valo 1067e705c121SKalle Valo mutex_lock(&mvm->mutex); 1068e705c121SKalle Valo 1069e705c121SKalle Valo clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1070e705c121SKalle Valo iwl_mvm_d0i3_enable_tx(mvm, NULL); 1071e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, true, NULL); 1072e705c121SKalle Valo if (ret) 1073e705c121SKalle Valo IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1074e705c121SKalle Valo ret); 1075e705c121SKalle Valo 1076e705c121SKalle Valo /* allow transport/FW low power modes */ 1077e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN); 1078e705c121SKalle Valo 1079e705c121SKalle Valo /* 1080e705c121SKalle Valo * If we have TDLS peers, remove them. We don't know the last seqno/PN 1081e705c121SKalle Valo * of packets the FW sent out, so we must reconnect. 1082e705c121SKalle Valo */ 1083e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 1084e705c121SKalle Valo 1085e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1086e705c121SKalle Valo } 1087e705c121SKalle Valo 1088e705c121SKalle Valo static void iwl_mvm_resume_complete(struct iwl_mvm *mvm) 1089e705c121SKalle Valo { 1090b7282643SLuca Coelho if (iwl_mvm_is_d0i3_supported(mvm) && 1091b7282643SLuca Coelho iwl_mvm_enter_d0i3_on_suspend(mvm)) 1092b7282643SLuca Coelho WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq, 1093e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_IN_D0I3, 1094e705c121SKalle Valo &mvm->status), 1095b7282643SLuca Coelho HZ), 1096b7282643SLuca Coelho "D0i3 exit on resume timed out\n"); 1097e705c121SKalle Valo } 1098e705c121SKalle Valo 1099e705c121SKalle Valo static void 1100e705c121SKalle Valo iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1101e705c121SKalle Valo enum ieee80211_reconfig_type reconfig_type) 1102e705c121SKalle Valo { 1103e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1104e705c121SKalle Valo 1105e705c121SKalle Valo switch (reconfig_type) { 1106e705c121SKalle Valo case IEEE80211_RECONFIG_TYPE_RESTART: 1107e705c121SKalle Valo iwl_mvm_restart_complete(mvm); 1108e705c121SKalle Valo break; 1109e705c121SKalle Valo case IEEE80211_RECONFIG_TYPE_SUSPEND: 1110e705c121SKalle Valo iwl_mvm_resume_complete(mvm); 1111e705c121SKalle Valo break; 1112e705c121SKalle Valo } 1113e705c121SKalle Valo } 1114e705c121SKalle Valo 1115e705c121SKalle Valo void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1116e705c121SKalle Valo { 1117e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1118e705c121SKalle Valo 1119e705c121SKalle Valo /* firmware counters are obviously reset now, but we shouldn't 1120e705c121SKalle Valo * partially track so also clear the fw_reset_accu counters. 1121e705c121SKalle Valo */ 1122e705c121SKalle Valo memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1123e705c121SKalle Valo 1124e705c121SKalle Valo /* async_handlers_wk is now blocked */ 1125e705c121SKalle Valo 1126e705c121SKalle Valo /* 1127e705c121SKalle Valo * The work item could be running or queued if the 1128e705c121SKalle Valo * ROC time event stops just as we get here. 1129e705c121SKalle Valo */ 1130e705c121SKalle Valo flush_work(&mvm->roc_done_wk); 1131e705c121SKalle Valo 1132e705c121SKalle Valo iwl_trans_stop_device(mvm->trans); 1133e705c121SKalle Valo 1134e705c121SKalle Valo iwl_mvm_async_handlers_purge(mvm); 1135e705c121SKalle Valo /* async_handlers_list is empty and will stay empty: HW is stopped */ 1136e705c121SKalle Valo 1137e705c121SKalle Valo /* the fw is stopped, the aux sta is dead: clean up driver state */ 1138e705c121SKalle Valo iwl_mvm_del_aux_sta(mvm); 1139e705c121SKalle Valo 1140e705c121SKalle Valo /* 1141e705c121SKalle Valo * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete() 1142e705c121SKalle Valo * won't be called in this case). 1143e705c121SKalle Valo * But make sure to cleanup interfaces that have gone down before/during 1144e705c121SKalle Valo * HW restart was requested. 1145e705c121SKalle Valo */ 1146e705c121SKalle Valo if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1147e705c121SKalle Valo ieee80211_iterate_interfaces(mvm->hw, 0, 1148e705c121SKalle Valo iwl_mvm_cleanup_iterator, mvm); 1149e705c121SKalle Valo 1150e705c121SKalle Valo /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1151e705c121SKalle Valo * make sure there's nothing left there and warn if any is found. 1152e705c121SKalle Valo */ 1153e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1154e705c121SKalle Valo int i; 1155e705c121SKalle Valo 1156e705c121SKalle Valo for (i = 0; i < mvm->max_scans; i++) { 1157e705c121SKalle Valo if (WARN_ONCE(mvm->scan_uid_status[i], 1158e705c121SKalle Valo "UMAC scan UID %d status was not cleaned\n", 1159e705c121SKalle Valo i)) 1160e705c121SKalle Valo mvm->scan_uid_status[i] = 0; 1161e705c121SKalle Valo } 1162e705c121SKalle Valo } 1163e705c121SKalle Valo 1164e705c121SKalle Valo mvm->ucode_loaded = false; 1165e705c121SKalle Valo } 1166e705c121SKalle Valo 1167e705c121SKalle Valo static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1168e705c121SKalle Valo { 1169e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1170e705c121SKalle Valo 1171e705c121SKalle Valo flush_work(&mvm->d0i3_exit_work); 1172e705c121SKalle Valo flush_work(&mvm->async_handlers_wk); 1173e705c121SKalle Valo cancel_delayed_work_sync(&mvm->fw_dump_wk); 1174e705c121SKalle Valo iwl_mvm_free_fw_dump_desc(mvm); 1175e705c121SKalle Valo 1176e705c121SKalle Valo mutex_lock(&mvm->mutex); 1177e705c121SKalle Valo __iwl_mvm_mac_stop(mvm); 1178e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1179e705c121SKalle Valo 1180e705c121SKalle Valo /* 1181e705c121SKalle Valo * The worker might have been waiting for the mutex, let it run and 1182e705c121SKalle Valo * discover that its list is now empty. 1183e705c121SKalle Valo */ 1184e705c121SKalle Valo cancel_work_sync(&mvm->async_handlers_wk); 1185e705c121SKalle Valo } 1186e705c121SKalle Valo 1187e705c121SKalle Valo static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1188e705c121SKalle Valo { 1189e705c121SKalle Valo u16 i; 1190e705c121SKalle Valo 1191e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1192e705c121SKalle Valo 1193e705c121SKalle Valo for (i = 0; i < NUM_PHY_CTX; i++) 1194e705c121SKalle Valo if (!mvm->phy_ctxts[i].ref) 1195e705c121SKalle Valo return &mvm->phy_ctxts[i]; 1196e705c121SKalle Valo 1197e705c121SKalle Valo IWL_ERR(mvm, "No available PHY context\n"); 1198e705c121SKalle Valo return NULL; 1199e705c121SKalle Valo } 1200e705c121SKalle Valo 1201e705c121SKalle Valo static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1202e705c121SKalle Valo s16 tx_power) 1203e705c121SKalle Valo { 1204e705c121SKalle Valo struct iwl_dev_tx_power_cmd cmd = { 1205e705c121SKalle Valo .v2.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1206e705c121SKalle Valo .v2.mac_context_id = 1207e705c121SKalle Valo cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1208e705c121SKalle Valo .v2.pwr_restriction = cpu_to_le16(8 * tx_power), 1209e705c121SKalle Valo }; 1210e705c121SKalle Valo int len = sizeof(cmd); 1211e705c121SKalle Valo 1212e705c121SKalle Valo if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1213e705c121SKalle Valo cmd.v2.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1214e705c121SKalle Valo 1215e705c121SKalle Valo if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_TX_POWER_CHAIN)) 1216e705c121SKalle Valo len = sizeof(cmd.v2); 1217e705c121SKalle Valo 1218e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); 1219e705c121SKalle Valo } 1220e705c121SKalle Valo 1221e705c121SKalle Valo static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1222e705c121SKalle Valo struct ieee80211_vif *vif) 1223e705c121SKalle Valo { 1224e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1225e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1226e705c121SKalle Valo int ret; 1227e705c121SKalle Valo 1228e705c121SKalle Valo mvmvif->mvm = mvm; 1229e705c121SKalle Valo 1230e705c121SKalle Valo /* 1231e705c121SKalle Valo * make sure D0i3 exit is completed, otherwise a target access 1232e705c121SKalle Valo * during tx queue configuration could be done when still in 1233e705c121SKalle Valo * D0i3 state. 1234e705c121SKalle Valo */ 1235e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF); 1236e705c121SKalle Valo if (ret) 1237e705c121SKalle Valo return ret; 1238e705c121SKalle Valo 1239e705c121SKalle Valo /* 1240e705c121SKalle Valo * Not much to do here. The stack will not allow interface 1241e705c121SKalle Valo * types or combinations that we didn't advertise, so we 1242e705c121SKalle Valo * don't really have to check the types. 1243e705c121SKalle Valo */ 1244e705c121SKalle Valo 1245e705c121SKalle Valo mutex_lock(&mvm->mutex); 1246e705c121SKalle Valo 1247e705c121SKalle Valo /* make sure that beacon statistics don't go backwards with FW reset */ 1248e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1249e705c121SKalle Valo mvmvif->beacon_stats.accu_num_beacons += 1250e705c121SKalle Valo mvmvif->beacon_stats.num_beacons; 1251e705c121SKalle Valo 1252e705c121SKalle Valo /* Allocate resources for the MAC context, and add it to the fw */ 1253e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1254e705c121SKalle Valo if (ret) 1255e705c121SKalle Valo goto out_unlock; 1256e705c121SKalle Valo 1257e705c121SKalle Valo /* Counting number of interfaces is needed for legacy PM */ 1258e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1259e705c121SKalle Valo mvm->vif_count++; 1260e705c121SKalle Valo 1261e705c121SKalle Valo /* 1262e705c121SKalle Valo * The AP binding flow can be done only after the beacon 1263e705c121SKalle Valo * template is configured (which happens only in the mac80211 1264e705c121SKalle Valo * start_ap() flow), and adding the broadcast station can happen 1265e705c121SKalle Valo * only after the binding. 1266e705c121SKalle Valo * In addition, since modifying the MAC before adding a bcast 1267e705c121SKalle Valo * station is not allowed by the FW, delay the adding of MAC context to 1268e705c121SKalle Valo * the point where we can also add the bcast station. 1269e705c121SKalle Valo * In short: there's not much we can do at this point, other than 1270e705c121SKalle Valo * allocating resources :) 1271e705c121SKalle Valo */ 1272e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP || 1273e705c121SKalle Valo vif->type == NL80211_IFTYPE_ADHOC) { 1274e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1275e705c121SKalle Valo if (ret) { 1276e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1277e705c121SKalle Valo goto out_release; 1278e705c121SKalle Valo } 1279e705c121SKalle Valo 1280e705c121SKalle Valo iwl_mvm_vif_dbgfs_register(mvm, vif); 1281e705c121SKalle Valo goto out_unlock; 1282e705c121SKalle Valo } 1283e705c121SKalle Valo 1284e705c121SKalle Valo mvmvif->features |= hw->netdev_features; 1285e705c121SKalle Valo 1286e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1287e705c121SKalle Valo if (ret) 1288e705c121SKalle Valo goto out_release; 1289e705c121SKalle Valo 1290e705c121SKalle Valo ret = iwl_mvm_power_update_mac(mvm); 1291e705c121SKalle Valo if (ret) 1292e705c121SKalle Valo goto out_remove_mac; 1293e705c121SKalle Valo 1294e705c121SKalle Valo /* beacon filtering */ 1295e705c121SKalle Valo ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1296e705c121SKalle Valo if (ret) 1297e705c121SKalle Valo goto out_remove_mac; 1298e705c121SKalle Valo 1299e705c121SKalle Valo if (!mvm->bf_allowed_vif && 1300e705c121SKalle Valo vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1301e705c121SKalle Valo mvm->bf_allowed_vif = mvmvif; 1302e705c121SKalle Valo vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1303e705c121SKalle Valo IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1304e705c121SKalle Valo } 1305e705c121SKalle Valo 1306e705c121SKalle Valo /* 1307e705c121SKalle Valo * P2P_DEVICE interface does not have a channel context assigned to it, 1308e705c121SKalle Valo * so a dedicated PHY context is allocated to it and the corresponding 1309e705c121SKalle Valo * MAC context is bound to it at this stage. 1310e705c121SKalle Valo */ 1311e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1312e705c121SKalle Valo 1313e705c121SKalle Valo mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1314e705c121SKalle Valo if (!mvmvif->phy_ctxt) { 1315e705c121SKalle Valo ret = -ENOSPC; 1316e705c121SKalle Valo goto out_free_bf; 1317e705c121SKalle Valo } 1318e705c121SKalle Valo 1319e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 1320e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 1321e705c121SKalle Valo if (ret) 1322e705c121SKalle Valo goto out_unref_phy; 1323e705c121SKalle Valo 1324e705c121SKalle Valo ret = iwl_mvm_add_bcast_sta(mvm, vif); 1325e705c121SKalle Valo if (ret) 1326e705c121SKalle Valo goto out_unbind; 1327e705c121SKalle Valo 1328e705c121SKalle Valo /* Save a pointer to p2p device vif, so it can later be used to 1329e705c121SKalle Valo * update the p2p device MAC when a GO is started/stopped */ 1330e705c121SKalle Valo mvm->p2p_device_vif = vif; 1331e705c121SKalle Valo } 1332e705c121SKalle Valo 1333e705c121SKalle Valo iwl_mvm_vif_dbgfs_register(mvm, vif); 1334e705c121SKalle Valo goto out_unlock; 1335e705c121SKalle Valo 1336e705c121SKalle Valo out_unbind: 1337e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 1338e705c121SKalle Valo out_unref_phy: 1339e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1340e705c121SKalle Valo out_free_bf: 1341e705c121SKalle Valo if (mvm->bf_allowed_vif == mvmvif) { 1342e705c121SKalle Valo mvm->bf_allowed_vif = NULL; 1343e705c121SKalle Valo vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1344e705c121SKalle Valo IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1345e705c121SKalle Valo } 1346e705c121SKalle Valo out_remove_mac: 1347e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 1348e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 1349e705c121SKalle Valo out_release: 1350e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1351e705c121SKalle Valo mvm->vif_count--; 1352e705c121SKalle Valo 1353e705c121SKalle Valo iwl_mvm_mac_ctxt_release(mvm, vif); 1354e705c121SKalle Valo out_unlock: 1355e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1356e705c121SKalle Valo 1357e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF); 1358e705c121SKalle Valo 1359e705c121SKalle Valo return ret; 1360e705c121SKalle Valo } 1361e705c121SKalle Valo 1362e705c121SKalle Valo static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1363e705c121SKalle Valo struct ieee80211_vif *vif) 1364e705c121SKalle Valo { 1365e705c121SKalle Valo u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif); 1366e705c121SKalle Valo 1367e705c121SKalle Valo if (tfd_msk) { 1368e705c121SKalle Valo /* 1369e705c121SKalle Valo * mac80211 first removes all the stations of the vif and 1370e705c121SKalle Valo * then removes the vif. When it removes a station it also 1371e705c121SKalle Valo * flushes the AMPDU session. So by now, all the AMPDU sessions 1372e705c121SKalle Valo * of all the stations of this vif are closed, and the queues 1373e705c121SKalle Valo * of these AMPDU sessions are properly closed. 1374e705c121SKalle Valo * We still need to take care of the shared queues of the vif. 1375e705c121SKalle Valo * Flush them here. 1376e705c121SKalle Valo */ 1377e705c121SKalle Valo mutex_lock(&mvm->mutex); 1378e705c121SKalle Valo iwl_mvm_flush_tx_path(mvm, tfd_msk, 0); 1379e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1380e705c121SKalle Valo 1381e705c121SKalle Valo /* 1382e705c121SKalle Valo * There are transports that buffer a few frames in the host. 1383e705c121SKalle Valo * For these, the flush above isn't enough since while we were 1384e705c121SKalle Valo * flushing, the transport might have sent more frames to the 1385e705c121SKalle Valo * device. To solve this, wait here until the transport is 1386e705c121SKalle Valo * empty. Technically, this could have replaced the flush 1387e705c121SKalle Valo * above, but flush is much faster than draining. So flush 1388e705c121SKalle Valo * first, and drain to make sure we have no frames in the 1389e705c121SKalle Valo * transport anymore. 1390e705c121SKalle Valo * If a station still had frames on the shared queues, it is 1391e705c121SKalle Valo * already marked as draining, so to complete the draining, we 1392e705c121SKalle Valo * just need to wait until the transport is empty. 1393e705c121SKalle Valo */ 1394e705c121SKalle Valo iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk); 1395e705c121SKalle Valo } 1396e705c121SKalle Valo 1397e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1398e705c121SKalle Valo /* 1399e705c121SKalle Valo * Flush the ROC worker which will flush the OFFCHANNEL queue. 1400e705c121SKalle Valo * We assume here that all the packets sent to the OFFCHANNEL 1401e705c121SKalle Valo * queue are sent in ROC session. 1402e705c121SKalle Valo */ 1403e705c121SKalle Valo flush_work(&mvm->roc_done_wk); 1404e705c121SKalle Valo } else { 1405e705c121SKalle Valo /* 1406e705c121SKalle Valo * By now, all the AC queues are empty. The AGG queues are 1407e705c121SKalle Valo * empty too. We already got all the Tx responses for all the 1408e705c121SKalle Valo * packets in the queues. The drain work can have been 1409e705c121SKalle Valo * triggered. Flush it. 1410e705c121SKalle Valo */ 1411e705c121SKalle Valo flush_work(&mvm->sta_drained_wk); 1412e705c121SKalle Valo } 1413e705c121SKalle Valo } 1414e705c121SKalle Valo 1415e705c121SKalle Valo static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1416e705c121SKalle Valo struct ieee80211_vif *vif) 1417e705c121SKalle Valo { 1418e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1419e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1420e705c121SKalle Valo 1421e705c121SKalle Valo iwl_mvm_prepare_mac_removal(mvm, vif); 1422e705c121SKalle Valo 1423e705c121SKalle Valo mutex_lock(&mvm->mutex); 1424e705c121SKalle Valo 1425e705c121SKalle Valo if (mvm->bf_allowed_vif == mvmvif) { 1426e705c121SKalle Valo mvm->bf_allowed_vif = NULL; 1427e705c121SKalle Valo vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1428e705c121SKalle Valo IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1429e705c121SKalle Valo } 1430e705c121SKalle Valo 1431e705c121SKalle Valo iwl_mvm_vif_dbgfs_clean(mvm, vif); 1432e705c121SKalle Valo 1433e705c121SKalle Valo /* 1434e705c121SKalle Valo * For AP/GO interface, the tear down of the resources allocated to the 1435e705c121SKalle Valo * interface is be handled as part of the stop_ap flow. 1436e705c121SKalle Valo */ 1437e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP || 1438e705c121SKalle Valo vif->type == NL80211_IFTYPE_ADHOC) { 1439e705c121SKalle Valo #ifdef CONFIG_NL80211_TESTMODE 1440e705c121SKalle Valo if (vif == mvm->noa_vif) { 1441e705c121SKalle Valo mvm->noa_vif = NULL; 1442e705c121SKalle Valo mvm->noa_duration = 0; 1443e705c121SKalle Valo } 1444e705c121SKalle Valo #endif 1445e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif); 1446e705c121SKalle Valo goto out_release; 1447e705c121SKalle Valo } 1448e705c121SKalle Valo 1449e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1450e705c121SKalle Valo mvm->p2p_device_vif = NULL; 1451e705c121SKalle Valo iwl_mvm_rm_bcast_sta(mvm, vif); 1452e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 1453e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1454e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 1455e705c121SKalle Valo } 1456e705c121SKalle Valo 1457e705c121SKalle Valo if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) 1458e705c121SKalle Valo mvm->vif_count--; 1459e705c121SKalle Valo 1460e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 1461e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 1462e705c121SKalle Valo 1463e705c121SKalle Valo out_release: 1464e705c121SKalle Valo iwl_mvm_mac_ctxt_release(mvm, vif); 1465e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1466e705c121SKalle Valo } 1467e705c121SKalle Valo 1468e705c121SKalle Valo static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) 1469e705c121SKalle Valo { 1470e705c121SKalle Valo return 0; 1471e705c121SKalle Valo } 1472e705c121SKalle Valo 1473e705c121SKalle Valo struct iwl_mvm_mc_iter_data { 1474e705c121SKalle Valo struct iwl_mvm *mvm; 1475e705c121SKalle Valo int port_id; 1476e705c121SKalle Valo }; 1477e705c121SKalle Valo 1478e705c121SKalle Valo static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1479e705c121SKalle Valo struct ieee80211_vif *vif) 1480e705c121SKalle Valo { 1481e705c121SKalle Valo struct iwl_mvm_mc_iter_data *data = _data; 1482e705c121SKalle Valo struct iwl_mvm *mvm = data->mvm; 1483e705c121SKalle Valo struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1484e705c121SKalle Valo int ret, len; 1485e705c121SKalle Valo 1486e705c121SKalle Valo /* if we don't have free ports, mcast frames will be dropped */ 1487e705c121SKalle Valo if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1488e705c121SKalle Valo return; 1489e705c121SKalle Valo 1490e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || 1491e705c121SKalle Valo !vif->bss_conf.assoc) 1492e705c121SKalle Valo return; 1493e705c121SKalle Valo 1494e705c121SKalle Valo cmd->port_id = data->port_id++; 1495e705c121SKalle Valo memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1496e705c121SKalle Valo len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1497e705c121SKalle Valo 1498e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd); 1499e705c121SKalle Valo if (ret) 1500e705c121SKalle Valo IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1501e705c121SKalle Valo } 1502e705c121SKalle Valo 1503e705c121SKalle Valo static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1504e705c121SKalle Valo { 1505e705c121SKalle Valo struct iwl_mvm_mc_iter_data iter_data = { 1506e705c121SKalle Valo .mvm = mvm, 1507e705c121SKalle Valo }; 1508e705c121SKalle Valo 1509e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1510e705c121SKalle Valo 1511e705c121SKalle Valo if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1512e705c121SKalle Valo return; 1513e705c121SKalle Valo 1514e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 1515e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1516e705c121SKalle Valo iwl_mvm_mc_iface_iterator, &iter_data); 1517e705c121SKalle Valo } 1518e705c121SKalle Valo 1519e705c121SKalle Valo static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1520e705c121SKalle Valo struct netdev_hw_addr_list *mc_list) 1521e705c121SKalle Valo { 1522e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1523e705c121SKalle Valo struct iwl_mcast_filter_cmd *cmd; 1524e705c121SKalle Valo struct netdev_hw_addr *addr; 1525e705c121SKalle Valo int addr_count; 1526e705c121SKalle Valo bool pass_all; 1527e705c121SKalle Valo int len; 1528e705c121SKalle Valo 1529e705c121SKalle Valo addr_count = netdev_hw_addr_list_count(mc_list); 1530e705c121SKalle Valo pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1531e705c121SKalle Valo IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1532e705c121SKalle Valo if (pass_all) 1533e705c121SKalle Valo addr_count = 0; 1534e705c121SKalle Valo 1535e705c121SKalle Valo len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1536e705c121SKalle Valo cmd = kzalloc(len, GFP_ATOMIC); 1537e705c121SKalle Valo if (!cmd) 1538e705c121SKalle Valo return 0; 1539e705c121SKalle Valo 1540e705c121SKalle Valo if (pass_all) { 1541e705c121SKalle Valo cmd->pass_all = 1; 1542e705c121SKalle Valo return (u64)(unsigned long)cmd; 1543e705c121SKalle Valo } 1544e705c121SKalle Valo 1545e705c121SKalle Valo netdev_hw_addr_list_for_each(addr, mc_list) { 1546e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1547e705c121SKalle Valo cmd->count, addr->addr); 1548e705c121SKalle Valo memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1549e705c121SKalle Valo addr->addr, ETH_ALEN); 1550e705c121SKalle Valo cmd->count++; 1551e705c121SKalle Valo } 1552e705c121SKalle Valo 1553e705c121SKalle Valo return (u64)(unsigned long)cmd; 1554e705c121SKalle Valo } 1555e705c121SKalle Valo 1556e705c121SKalle Valo static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1557e705c121SKalle Valo unsigned int changed_flags, 1558e705c121SKalle Valo unsigned int *total_flags, 1559e705c121SKalle Valo u64 multicast) 1560e705c121SKalle Valo { 1561e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1562e705c121SKalle Valo struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1563e705c121SKalle Valo 1564e705c121SKalle Valo mutex_lock(&mvm->mutex); 1565e705c121SKalle Valo 1566e705c121SKalle Valo /* replace previous configuration */ 1567e705c121SKalle Valo kfree(mvm->mcast_filter_cmd); 1568e705c121SKalle Valo mvm->mcast_filter_cmd = cmd; 1569e705c121SKalle Valo 1570e705c121SKalle Valo if (!cmd) 1571e705c121SKalle Valo goto out; 1572e705c121SKalle Valo 1573e705c121SKalle Valo iwl_mvm_recalc_multicast(mvm); 1574e705c121SKalle Valo out: 1575e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1576e705c121SKalle Valo *total_flags = 0; 1577e705c121SKalle Valo } 1578e705c121SKalle Valo 1579e705c121SKalle Valo static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1580e705c121SKalle Valo struct ieee80211_vif *vif, 1581e705c121SKalle Valo unsigned int filter_flags, 1582e705c121SKalle Valo unsigned int changed_flags) 1583e705c121SKalle Valo { 1584e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1585e705c121SKalle Valo 1586e705c121SKalle Valo /* We support only filter for probe requests */ 1587e705c121SKalle Valo if (!(changed_flags & FIF_PROBE_REQ)) 1588e705c121SKalle Valo return; 1589e705c121SKalle Valo 1590e705c121SKalle Valo /* Supported only for p2p client interfaces */ 1591e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || 1592e705c121SKalle Valo !vif->p2p) 1593e705c121SKalle Valo return; 1594e705c121SKalle Valo 1595e705c121SKalle Valo mutex_lock(&mvm->mutex); 1596e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1597e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1598e705c121SKalle Valo } 1599e705c121SKalle Valo 1600e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1601e705c121SKalle Valo struct iwl_bcast_iter_data { 1602e705c121SKalle Valo struct iwl_mvm *mvm; 1603e705c121SKalle Valo struct iwl_bcast_filter_cmd *cmd; 1604e705c121SKalle Valo u8 current_filter; 1605e705c121SKalle Valo }; 1606e705c121SKalle Valo 1607e705c121SKalle Valo static void 1608e705c121SKalle Valo iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, 1609e705c121SKalle Valo const struct iwl_fw_bcast_filter *in_filter, 1610e705c121SKalle Valo struct iwl_fw_bcast_filter *out_filter) 1611e705c121SKalle Valo { 1612e705c121SKalle Valo struct iwl_fw_bcast_filter_attr *attr; 1613e705c121SKalle Valo int i; 1614e705c121SKalle Valo 1615e705c121SKalle Valo memcpy(out_filter, in_filter, sizeof(*out_filter)); 1616e705c121SKalle Valo 1617e705c121SKalle Valo for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { 1618e705c121SKalle Valo attr = &out_filter->attrs[i]; 1619e705c121SKalle Valo 1620e705c121SKalle Valo if (!attr->mask) 1621e705c121SKalle Valo break; 1622e705c121SKalle Valo 1623e705c121SKalle Valo switch (attr->reserved1) { 1624e705c121SKalle Valo case cpu_to_le16(BC_FILTER_MAGIC_IP): 1625e705c121SKalle Valo if (vif->bss_conf.arp_addr_cnt != 1) { 1626e705c121SKalle Valo attr->mask = 0; 1627e705c121SKalle Valo continue; 1628e705c121SKalle Valo } 1629e705c121SKalle Valo 1630e705c121SKalle Valo attr->val = vif->bss_conf.arp_addr_list[0]; 1631e705c121SKalle Valo break; 1632e705c121SKalle Valo case cpu_to_le16(BC_FILTER_MAGIC_MAC): 1633e705c121SKalle Valo attr->val = *(__be32 *)&vif->addr[2]; 1634e705c121SKalle Valo break; 1635e705c121SKalle Valo default: 1636e705c121SKalle Valo break; 1637e705c121SKalle Valo } 1638e705c121SKalle Valo attr->reserved1 = 0; 1639e705c121SKalle Valo out_filter->num_attrs++; 1640e705c121SKalle Valo } 1641e705c121SKalle Valo } 1642e705c121SKalle Valo 1643e705c121SKalle Valo static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, 1644e705c121SKalle Valo struct ieee80211_vif *vif) 1645e705c121SKalle Valo { 1646e705c121SKalle Valo struct iwl_bcast_iter_data *data = _data; 1647e705c121SKalle Valo struct iwl_mvm *mvm = data->mvm; 1648e705c121SKalle Valo struct iwl_bcast_filter_cmd *cmd = data->cmd; 1649e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1650e705c121SKalle Valo struct iwl_fw_bcast_mac *bcast_mac; 1651e705c121SKalle Valo int i; 1652e705c121SKalle Valo 1653e705c121SKalle Valo if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) 1654e705c121SKalle Valo return; 1655e705c121SKalle Valo 1656e705c121SKalle Valo bcast_mac = &cmd->macs[mvmvif->id]; 1657e705c121SKalle Valo 1658e705c121SKalle Valo /* 1659e705c121SKalle Valo * enable filtering only for associated stations, but not for P2P 1660e705c121SKalle Valo * Clients 1661e705c121SKalle Valo */ 1662e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || 1663e705c121SKalle Valo !vif->bss_conf.assoc) 1664e705c121SKalle Valo return; 1665e705c121SKalle Valo 1666e705c121SKalle Valo bcast_mac->default_discard = 1; 1667e705c121SKalle Valo 1668e705c121SKalle Valo /* copy all configured filters */ 1669e705c121SKalle Valo for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { 1670e705c121SKalle Valo /* 1671e705c121SKalle Valo * Make sure we don't exceed our filters limit. 1672e705c121SKalle Valo * if there is still a valid filter to be configured, 1673e705c121SKalle Valo * be on the safe side and just allow bcast for this mac. 1674e705c121SKalle Valo */ 1675e705c121SKalle Valo if (WARN_ON_ONCE(data->current_filter >= 1676e705c121SKalle Valo ARRAY_SIZE(cmd->filters))) { 1677e705c121SKalle Valo bcast_mac->default_discard = 0; 1678e705c121SKalle Valo bcast_mac->attached_filters = 0; 1679e705c121SKalle Valo break; 1680e705c121SKalle Valo } 1681e705c121SKalle Valo 1682e705c121SKalle Valo iwl_mvm_set_bcast_filter(vif, 1683e705c121SKalle Valo &mvm->bcast_filters[i], 1684e705c121SKalle Valo &cmd->filters[data->current_filter]); 1685e705c121SKalle Valo 1686e705c121SKalle Valo /* skip current filter if it contains no attributes */ 1687e705c121SKalle Valo if (!cmd->filters[data->current_filter].num_attrs) 1688e705c121SKalle Valo continue; 1689e705c121SKalle Valo 1690e705c121SKalle Valo /* attach the filter to current mac */ 1691e705c121SKalle Valo bcast_mac->attached_filters |= 1692e705c121SKalle Valo cpu_to_le16(BIT(data->current_filter)); 1693e705c121SKalle Valo 1694e705c121SKalle Valo data->current_filter++; 1695e705c121SKalle Valo } 1696e705c121SKalle Valo } 1697e705c121SKalle Valo 1698e705c121SKalle Valo bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, 1699e705c121SKalle Valo struct iwl_bcast_filter_cmd *cmd) 1700e705c121SKalle Valo { 1701e705c121SKalle Valo struct iwl_bcast_iter_data iter_data = { 1702e705c121SKalle Valo .mvm = mvm, 1703e705c121SKalle Valo .cmd = cmd, 1704e705c121SKalle Valo }; 1705e705c121SKalle Valo 1706e705c121SKalle Valo if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) 1707e705c121SKalle Valo return false; 1708e705c121SKalle Valo 1709e705c121SKalle Valo memset(cmd, 0, sizeof(*cmd)); 1710e705c121SKalle Valo cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); 1711e705c121SKalle Valo cmd->max_macs = ARRAY_SIZE(cmd->macs); 1712e705c121SKalle Valo 1713e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_DEBUGFS 1714e705c121SKalle Valo /* use debugfs filters/macs if override is configured */ 1715e705c121SKalle Valo if (mvm->dbgfs_bcast_filtering.override) { 1716e705c121SKalle Valo memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, 1717e705c121SKalle Valo sizeof(cmd->filters)); 1718e705c121SKalle Valo memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, 1719e705c121SKalle Valo sizeof(cmd->macs)); 1720e705c121SKalle Valo return true; 1721e705c121SKalle Valo } 1722e705c121SKalle Valo #endif 1723e705c121SKalle Valo 1724e705c121SKalle Valo /* if no filters are configured, do nothing */ 1725e705c121SKalle Valo if (!mvm->bcast_filters) 1726e705c121SKalle Valo return false; 1727e705c121SKalle Valo 1728e705c121SKalle Valo /* configure and attach these filters for each associated sta vif */ 1729e705c121SKalle Valo ieee80211_iterate_active_interfaces( 1730e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1731e705c121SKalle Valo iwl_mvm_bcast_filter_iterator, &iter_data); 1732e705c121SKalle Valo 1733e705c121SKalle Valo return true; 1734e705c121SKalle Valo } 173534672bb3SEliad Peller 173634672bb3SEliad Peller static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1737e705c121SKalle Valo { 1738e705c121SKalle Valo struct iwl_bcast_filter_cmd cmd; 1739e705c121SKalle Valo 1740e705c121SKalle Valo if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) 1741e705c121SKalle Valo return 0; 1742e705c121SKalle Valo 1743e705c121SKalle Valo if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1744e705c121SKalle Valo return 0; 1745e705c121SKalle Valo 1746e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1747e705c121SKalle Valo sizeof(cmd), &cmd); 1748e705c121SKalle Valo } 1749e705c121SKalle Valo #else 175034672bb3SEliad Peller static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1751e705c121SKalle Valo { 1752e705c121SKalle Valo return 0; 1753e705c121SKalle Valo } 1754e705c121SKalle Valo #endif 1755e705c121SKalle Valo 1756e705c121SKalle Valo static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 1757e705c121SKalle Valo struct ieee80211_vif *vif, 1758e705c121SKalle Valo struct ieee80211_bss_conf *bss_conf, 1759e705c121SKalle Valo u32 changes) 1760e705c121SKalle Valo { 1761e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1762e705c121SKalle Valo int ret; 1763e705c121SKalle Valo 1764e705c121SKalle Valo /* 1765e705c121SKalle Valo * Re-calculate the tsf id, as the master-slave relations depend on the 1766e705c121SKalle Valo * beacon interval, which was not known when the station interface was 1767e705c121SKalle Valo * added. 1768e705c121SKalle Valo */ 1769e705c121SKalle Valo if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) 1770e705c121SKalle Valo iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 1771e705c121SKalle Valo 1772e705c121SKalle Valo /* 1773e705c121SKalle Valo * If we're not associated yet, take the (new) BSSID before associating 1774e705c121SKalle Valo * so the firmware knows. If we're already associated, then use the old 1775e705c121SKalle Valo * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 1776e705c121SKalle Valo * branch for disassociation below. 1777e705c121SKalle Valo */ 1778e705c121SKalle Valo if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 1779e705c121SKalle Valo memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 1780e705c121SKalle Valo 1781e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); 1782e705c121SKalle Valo if (ret) 1783e705c121SKalle Valo IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 1784e705c121SKalle Valo 1785e705c121SKalle Valo /* after sending it once, adopt mac80211 data */ 1786e705c121SKalle Valo memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 1787e705c121SKalle Valo mvmvif->associated = bss_conf->assoc; 1788e705c121SKalle Valo 1789e705c121SKalle Valo if (changes & BSS_CHANGED_ASSOC) { 1790e705c121SKalle Valo if (bss_conf->assoc) { 1791e705c121SKalle Valo /* clear statistics to get clean beacon counter */ 1792e705c121SKalle Valo iwl_mvm_request_statistics(mvm, true); 1793e705c121SKalle Valo memset(&mvmvif->beacon_stats, 0, 1794e705c121SKalle Valo sizeof(mvmvif->beacon_stats)); 1795e705c121SKalle Valo 1796e705c121SKalle Valo /* add quota for this interface */ 1797e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, true, NULL); 1798e705c121SKalle Valo if (ret) { 1799e705c121SKalle Valo IWL_ERR(mvm, "failed to update quotas\n"); 1800e705c121SKalle Valo return; 1801e705c121SKalle Valo } 1802e705c121SKalle Valo 1803e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 1804e705c121SKalle Valo &mvm->status)) { 1805e705c121SKalle Valo /* 1806e705c121SKalle Valo * If we're restarting then the firmware will 1807e705c121SKalle Valo * obviously have lost synchronisation with 1808e705c121SKalle Valo * the AP. It will attempt to synchronise by 1809e705c121SKalle Valo * itself, but we can make it more reliable by 1810e705c121SKalle Valo * scheduling a session protection time event. 1811e705c121SKalle Valo * 1812e705c121SKalle Valo * The firmware needs to receive a beacon to 1813e705c121SKalle Valo * catch up with synchronisation, use 110% of 1814e705c121SKalle Valo * the beacon interval. 1815e705c121SKalle Valo * 1816e705c121SKalle Valo * Set a large maximum delay to allow for more 1817e705c121SKalle Valo * than a single interface. 1818e705c121SKalle Valo */ 1819e705c121SKalle Valo u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 1820e705c121SKalle Valo iwl_mvm_protect_session(mvm, vif, dur, dur, 1821e705c121SKalle Valo 5 * dur, false); 1822e705c121SKalle Valo } 1823e705c121SKalle Valo 1824e705c121SKalle Valo iwl_mvm_sf_update(mvm, vif, false); 1825e705c121SKalle Valo iwl_mvm_power_vif_assoc(mvm, vif); 1826e705c121SKalle Valo if (vif->p2p) { 1827e705c121SKalle Valo iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT); 1828e705c121SKalle Valo iwl_mvm_update_smps(mvm, vif, 1829e705c121SKalle Valo IWL_MVM_SMPS_REQ_PROT, 1830e705c121SKalle Valo IEEE80211_SMPS_DYNAMIC); 1831e705c121SKalle Valo } 1832e705c121SKalle Valo } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { 1833e705c121SKalle Valo /* 1834e705c121SKalle Valo * If update fails - SF might be running in associated 1835e705c121SKalle Valo * mode while disassociated - which is forbidden. 1836e705c121SKalle Valo */ 1837e705c121SKalle Valo WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false), 1838e705c121SKalle Valo "Failed to update SF upon disassociation\n"); 1839e705c121SKalle Valo 1840e705c121SKalle Valo /* remove AP station now that the MAC is unassoc */ 1841e705c121SKalle Valo ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id); 1842e705c121SKalle Valo if (ret) 1843e705c121SKalle Valo IWL_ERR(mvm, "failed to remove AP station\n"); 1844e705c121SKalle Valo 1845e705c121SKalle Valo if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) 1846e705c121SKalle Valo mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; 1847e705c121SKalle Valo mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; 1848e705c121SKalle Valo /* remove quota for this interface */ 1849e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, false, NULL); 1850e705c121SKalle Valo if (ret) 1851e705c121SKalle Valo IWL_ERR(mvm, "failed to update quotas\n"); 1852e705c121SKalle Valo 1853e705c121SKalle Valo if (vif->p2p) 1854e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT); 1855e705c121SKalle Valo 1856e705c121SKalle Valo /* this will take the cleared BSSID from bss_conf */ 1857e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1858e705c121SKalle Valo if (ret) 1859e705c121SKalle Valo IWL_ERR(mvm, 1860e705c121SKalle Valo "failed to update MAC %pM (clear after unassoc)\n", 1861e705c121SKalle Valo vif->addr); 1862e705c121SKalle Valo } 1863e705c121SKalle Valo 1864e705c121SKalle Valo iwl_mvm_recalc_multicast(mvm); 186534672bb3SEliad Peller iwl_mvm_configure_bcast_filter(mvm); 1866e705c121SKalle Valo 1867e705c121SKalle Valo /* reset rssi values */ 1868e705c121SKalle Valo mvmvif->bf_data.ave_beacon_signal = 0; 1869e705c121SKalle Valo 1870e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 1871e705c121SKalle Valo iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, 1872e705c121SKalle Valo IEEE80211_SMPS_AUTOMATIC); 1873355346baSAvraham Stern if (fw_has_capa(&mvm->fw->ucode_capa, 1874355346baSAvraham Stern IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 1875355346baSAvraham Stern iwl_mvm_config_scan(mvm); 1876e705c121SKalle Valo } else if (changes & BSS_CHANGED_BEACON_INFO) { 1877e705c121SKalle Valo /* 1878e705c121SKalle Valo * We received a beacon _after_ association so 1879e705c121SKalle Valo * remove the session protection. 1880e705c121SKalle Valo */ 1881e705c121SKalle Valo iwl_mvm_remove_time_event(mvm, mvmvif, 1882e705c121SKalle Valo &mvmvif->time_event_data); 1883e705c121SKalle Valo } 1884e705c121SKalle Valo 1885e705c121SKalle Valo if (changes & BSS_CHANGED_BEACON_INFO) { 1886e705c121SKalle Valo iwl_mvm_sf_update(mvm, vif, false); 1887e705c121SKalle Valo WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 1888e705c121SKalle Valo } 1889e705c121SKalle Valo 1890e705c121SKalle Valo if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) { 1891e705c121SKalle Valo ret = iwl_mvm_power_update_mac(mvm); 1892e705c121SKalle Valo if (ret) 1893e705c121SKalle Valo IWL_ERR(mvm, "failed to update power mode\n"); 1894e705c121SKalle Valo } 1895e705c121SKalle Valo 1896e705c121SKalle Valo if (changes & BSS_CHANGED_TXPOWER) { 1897e705c121SKalle Valo IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 1898e705c121SKalle Valo bss_conf->txpower); 1899e705c121SKalle Valo iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 1900e705c121SKalle Valo } 1901e705c121SKalle Valo 1902e705c121SKalle Valo if (changes & BSS_CHANGED_CQM) { 1903e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 1904e705c121SKalle Valo /* reset cqm events tracking */ 1905e705c121SKalle Valo mvmvif->bf_data.last_cqm_event = 0; 1906e705c121SKalle Valo if (mvmvif->bf_data.bf_enabled) { 1907e705c121SKalle Valo ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1908e705c121SKalle Valo if (ret) 1909e705c121SKalle Valo IWL_ERR(mvm, 1910e705c121SKalle Valo "failed to update CQM thresholds\n"); 1911e705c121SKalle Valo } 1912e705c121SKalle Valo } 1913e705c121SKalle Valo 1914e705c121SKalle Valo if (changes & BSS_CHANGED_ARP_FILTER) { 1915e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); 191634672bb3SEliad Peller iwl_mvm_configure_bcast_filter(mvm); 1917e705c121SKalle Valo } 1918e705c121SKalle Valo } 1919e705c121SKalle Valo 1920e705c121SKalle Valo static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 1921e705c121SKalle Valo struct ieee80211_vif *vif) 1922e705c121SKalle Valo { 1923e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1924e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1925e705c121SKalle Valo int ret; 1926e705c121SKalle Valo 1927e705c121SKalle Valo /* 1928e705c121SKalle Valo * iwl_mvm_mac_ctxt_add() might read directly from the device 1929e705c121SKalle Valo * (the system time), so make sure it is available. 1930e705c121SKalle Valo */ 1931e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP); 1932e705c121SKalle Valo if (ret) 1933e705c121SKalle Valo return ret; 1934e705c121SKalle Valo 1935e705c121SKalle Valo mutex_lock(&mvm->mutex); 1936e705c121SKalle Valo 1937e705c121SKalle Valo /* Send the beacon template */ 1938e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); 1939e705c121SKalle Valo if (ret) 1940e705c121SKalle Valo goto out_unlock; 1941e705c121SKalle Valo 1942e705c121SKalle Valo /* 1943e705c121SKalle Valo * Re-calculate the tsf id, as the master-slave relations depend on the 1944e705c121SKalle Valo * beacon interval, which was not known when the AP interface was added. 1945e705c121SKalle Valo */ 1946e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP) 1947e705c121SKalle Valo iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 1948e705c121SKalle Valo 1949e705c121SKalle Valo mvmvif->ap_assoc_sta_count = 0; 1950e705c121SKalle Valo 1951e705c121SKalle Valo /* Add the mac context */ 1952e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1953e705c121SKalle Valo if (ret) 1954e705c121SKalle Valo goto out_unlock; 1955e705c121SKalle Valo 1956e705c121SKalle Valo /* Perform the binding */ 1957e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 1958e705c121SKalle Valo if (ret) 1959e705c121SKalle Valo goto out_remove; 1960e705c121SKalle Valo 1961e705c121SKalle Valo /* Send the bcast station. At this stage the TBTT and DTIM time events 1962e705c121SKalle Valo * are added and applied to the scheduler */ 1963e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 1964e705c121SKalle Valo if (ret) 1965e705c121SKalle Valo goto out_unbind; 1966e705c121SKalle Valo 1967e705c121SKalle Valo /* must be set before quota calculations */ 1968e705c121SKalle Valo mvmvif->ap_ibss_active = true; 1969e705c121SKalle Valo 1970e705c121SKalle Valo /* power updated needs to be done before quotas */ 1971e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 1972e705c121SKalle Valo 1973e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, false, NULL); 1974e705c121SKalle Valo if (ret) 1975e705c121SKalle Valo goto out_quota_failed; 1976e705c121SKalle Valo 1977e705c121SKalle Valo /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 1978e705c121SKalle Valo if (vif->p2p && mvm->p2p_device_vif) 1979e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 1980e705c121SKalle Valo 1981e705c121SKalle Valo iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS); 1982e705c121SKalle Valo 1983e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 1984e705c121SKalle Valo 1985e705c121SKalle Valo /* we don't support TDLS during DCM */ 1986e705c121SKalle Valo if (iwl_mvm_phy_ctx_count(mvm) > 1) 1987e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 1988e705c121SKalle Valo 1989e705c121SKalle Valo goto out_unlock; 1990e705c121SKalle Valo 1991e705c121SKalle Valo out_quota_failed: 1992e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 1993e705c121SKalle Valo mvmvif->ap_ibss_active = false; 1994e705c121SKalle Valo iwl_mvm_send_rm_bcast_sta(mvm, vif); 1995e705c121SKalle Valo out_unbind: 1996e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 1997e705c121SKalle Valo out_remove: 1998e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 1999e705c121SKalle Valo out_unlock: 2000e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2001e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP); 2002e705c121SKalle Valo return ret; 2003e705c121SKalle Valo } 2004e705c121SKalle Valo 2005e705c121SKalle Valo static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2006e705c121SKalle Valo struct ieee80211_vif *vif) 2007e705c121SKalle Valo { 2008e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2009e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2010e705c121SKalle Valo 2011e705c121SKalle Valo iwl_mvm_prepare_mac_removal(mvm, vif); 2012e705c121SKalle Valo 2013e705c121SKalle Valo mutex_lock(&mvm->mutex); 2014e705c121SKalle Valo 2015e705c121SKalle Valo /* Handle AP stop while in CSA */ 2016e705c121SKalle Valo if (rcu_access_pointer(mvm->csa_vif) == vif) { 2017e705c121SKalle Valo iwl_mvm_remove_time_event(mvm, mvmvif, 2018e705c121SKalle Valo &mvmvif->time_event_data); 2019e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_vif, NULL); 2020e705c121SKalle Valo mvmvif->csa_countdown = false; 2021e705c121SKalle Valo } 2022e705c121SKalle Valo 2023e705c121SKalle Valo if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2024e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2025e705c121SKalle Valo mvm->csa_tx_block_bcn_timeout = 0; 2026e705c121SKalle Valo } 2027e705c121SKalle Valo 2028e705c121SKalle Valo mvmvif->ap_ibss_active = false; 2029e705c121SKalle Valo mvm->ap_last_beacon_gp2 = 0; 2030e705c121SKalle Valo 2031e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 2032e705c121SKalle Valo 2033e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS); 2034e705c121SKalle Valo 2035e705c121SKalle Valo /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2036e705c121SKalle Valo if (vif->p2p && mvm->p2p_device_vif) 2037e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2038e705c121SKalle Valo 2039e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, NULL); 2040e705c121SKalle Valo iwl_mvm_send_rm_bcast_sta(mvm, vif); 2041e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 2042e705c121SKalle Valo 2043e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 2044e705c121SKalle Valo 2045e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 2046e705c121SKalle Valo 2047e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2048e705c121SKalle Valo } 2049e705c121SKalle Valo 2050e705c121SKalle Valo static void 2051e705c121SKalle Valo iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 2052e705c121SKalle Valo struct ieee80211_vif *vif, 2053e705c121SKalle Valo struct ieee80211_bss_conf *bss_conf, 2054e705c121SKalle Valo u32 changes) 2055e705c121SKalle Valo { 2056e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2057e705c121SKalle Valo 2058e705c121SKalle Valo /* Changes will be applied when the AP/IBSS is started */ 2059e705c121SKalle Valo if (!mvmvif->ap_ibss_active) 2060e705c121SKalle Valo return; 2061e705c121SKalle Valo 2062e705c121SKalle Valo if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 2063e705c121SKalle Valo BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 2064e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 2065e705c121SKalle Valo IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2066e705c121SKalle Valo 2067e705c121SKalle Valo /* Need to send a new beacon template to the FW */ 2068e705c121SKalle Valo if (changes & BSS_CHANGED_BEACON && 2069e705c121SKalle Valo iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) 2070e705c121SKalle Valo IWL_WARN(mvm, "Failed updating beacon data\n"); 2071e705c121SKalle Valo 2072e705c121SKalle Valo if (changes & BSS_CHANGED_TXPOWER) { 2073e705c121SKalle Valo IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 2074e705c121SKalle Valo bss_conf->txpower); 2075e705c121SKalle Valo iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2076e705c121SKalle Valo } 2077e705c121SKalle Valo 2078e705c121SKalle Valo } 2079e705c121SKalle Valo 2080e705c121SKalle Valo static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 2081e705c121SKalle Valo struct ieee80211_vif *vif, 2082e705c121SKalle Valo struct ieee80211_bss_conf *bss_conf, 2083e705c121SKalle Valo u32 changes) 2084e705c121SKalle Valo { 2085e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2086e705c121SKalle Valo 2087e705c121SKalle Valo /* 2088e705c121SKalle Valo * iwl_mvm_bss_info_changed_station() might call 2089e705c121SKalle Valo * iwl_mvm_protect_session(), which reads directly from 2090e705c121SKalle Valo * the device (the system time), so make sure it is available. 2091e705c121SKalle Valo */ 2092e705c121SKalle Valo if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED)) 2093e705c121SKalle Valo return; 2094e705c121SKalle Valo 2095e705c121SKalle Valo mutex_lock(&mvm->mutex); 2096e705c121SKalle Valo 2097e705c121SKalle Valo if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) 2098e705c121SKalle Valo iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 2099e705c121SKalle Valo 2100e705c121SKalle Valo switch (vif->type) { 2101e705c121SKalle Valo case NL80211_IFTYPE_STATION: 2102e705c121SKalle Valo iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 2103e705c121SKalle Valo break; 2104e705c121SKalle Valo case NL80211_IFTYPE_AP: 2105e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 2106e705c121SKalle Valo iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 2107e705c121SKalle Valo break; 2108e705c121SKalle Valo default: 2109e705c121SKalle Valo /* shouldn't happen */ 2110e705c121SKalle Valo WARN_ON_ONCE(1); 2111e705c121SKalle Valo } 2112e705c121SKalle Valo 2113e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2114e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED); 2115e705c121SKalle Valo } 2116e705c121SKalle Valo 2117e705c121SKalle Valo static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, 2118e705c121SKalle Valo struct ieee80211_vif *vif, 2119e705c121SKalle Valo struct ieee80211_scan_request *hw_req) 2120e705c121SKalle Valo { 2121e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2122e705c121SKalle Valo int ret; 2123e705c121SKalle Valo 2124e705c121SKalle Valo if (hw_req->req.n_channels == 0 || 2125e705c121SKalle Valo hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 2126e705c121SKalle Valo return -EINVAL; 2127e705c121SKalle Valo 2128e705c121SKalle Valo mutex_lock(&mvm->mutex); 2129e705c121SKalle Valo ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 2130e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2131e705c121SKalle Valo 2132e705c121SKalle Valo return ret; 2133e705c121SKalle Valo } 2134e705c121SKalle Valo 2135e705c121SKalle Valo static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 2136e705c121SKalle Valo struct ieee80211_vif *vif) 2137e705c121SKalle Valo { 2138e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2139e705c121SKalle Valo 2140e705c121SKalle Valo mutex_lock(&mvm->mutex); 2141e705c121SKalle Valo 2142e705c121SKalle Valo /* Due to a race condition, it's possible that mac80211 asks 2143e705c121SKalle Valo * us to stop a hw_scan when it's already stopped. This can 2144e705c121SKalle Valo * happen, for instance, if we stopped the scan ourselves, 2145e705c121SKalle Valo * called ieee80211_scan_completed() and the userspace called 2146e705c121SKalle Valo * cancel scan scan before ieee80211_scan_work() could run. 2147e705c121SKalle Valo * To handle that, simply return if the scan is not running. 2148e705c121SKalle Valo */ 2149e705c121SKalle Valo if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 2150e705c121SKalle Valo iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 2151e705c121SKalle Valo 2152e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2153e705c121SKalle Valo } 2154e705c121SKalle Valo 2155e705c121SKalle Valo static void 2156e705c121SKalle Valo iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 2157e705c121SKalle Valo struct ieee80211_sta *sta, u16 tids, 2158e705c121SKalle Valo int num_frames, 2159e705c121SKalle Valo enum ieee80211_frame_release_type reason, 2160e705c121SKalle Valo bool more_data) 2161e705c121SKalle Valo { 2162e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2163e705c121SKalle Valo 2164e705c121SKalle Valo /* Called when we need to transmit (a) frame(s) from mac80211 */ 2165e705c121SKalle Valo 2166e705c121SKalle Valo iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2167e705c121SKalle Valo tids, more_data, false); 2168e705c121SKalle Valo } 2169e705c121SKalle Valo 2170e705c121SKalle Valo static void 2171e705c121SKalle Valo iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 2172e705c121SKalle Valo struct ieee80211_sta *sta, u16 tids, 2173e705c121SKalle Valo int num_frames, 2174e705c121SKalle Valo enum ieee80211_frame_release_type reason, 2175e705c121SKalle Valo bool more_data) 2176e705c121SKalle Valo { 2177e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2178e705c121SKalle Valo 2179e705c121SKalle Valo /* Called when we need to transmit (a) frame(s) from agg queue */ 2180e705c121SKalle Valo 2181e705c121SKalle Valo iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2182e705c121SKalle Valo tids, more_data, true); 2183e705c121SKalle Valo } 2184e705c121SKalle Valo 2185e705c121SKalle Valo static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2186e705c121SKalle Valo struct ieee80211_vif *vif, 2187e705c121SKalle Valo enum sta_notify_cmd cmd, 2188e705c121SKalle Valo struct ieee80211_sta *sta) 2189e705c121SKalle Valo { 2190e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2191e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2192e705c121SKalle Valo unsigned long txqs = 0, tids = 0; 2193e705c121SKalle Valo int tid; 2194e705c121SKalle Valo 2195e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2196e705c121SKalle Valo for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 2197e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2198e705c121SKalle Valo 2199e705c121SKalle Valo if (tid_data->state != IWL_AGG_ON && 2200e705c121SKalle Valo tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA) 2201e705c121SKalle Valo continue; 2202e705c121SKalle Valo 2203e705c121SKalle Valo __set_bit(tid_data->txq_id, &txqs); 2204e705c121SKalle Valo 2205e705c121SKalle Valo if (iwl_mvm_tid_queued(tid_data) == 0) 2206e705c121SKalle Valo continue; 2207e705c121SKalle Valo 2208e705c121SKalle Valo __set_bit(tid, &tids); 2209e705c121SKalle Valo } 2210e705c121SKalle Valo 2211e705c121SKalle Valo switch (cmd) { 2212e705c121SKalle Valo case STA_NOTIFY_SLEEP: 2213e705c121SKalle Valo if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) 2214e705c121SKalle Valo ieee80211_sta_block_awake(hw, sta, true); 2215e705c121SKalle Valo 2216e705c121SKalle Valo for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 2217e705c121SKalle Valo ieee80211_sta_set_buffered(sta, tid, true); 2218e705c121SKalle Valo 2219e705c121SKalle Valo if (txqs) 2220e705c121SKalle Valo iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 2221e705c121SKalle Valo /* 2222e705c121SKalle Valo * The fw updates the STA to be asleep. Tx packets on the Tx 2223e705c121SKalle Valo * queues to this station will not be transmitted. The fw will 2224e705c121SKalle Valo * send a Tx response with TX_STATUS_FAIL_DEST_PS. 2225e705c121SKalle Valo */ 2226e705c121SKalle Valo break; 2227e705c121SKalle Valo case STA_NOTIFY_AWAKE: 2228e705c121SKalle Valo if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT)) 2229e705c121SKalle Valo break; 2230e705c121SKalle Valo 2231e705c121SKalle Valo if (txqs) 2232e705c121SKalle Valo iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 2233e705c121SKalle Valo iwl_mvm_sta_modify_ps_wake(mvm, sta); 2234e705c121SKalle Valo break; 2235e705c121SKalle Valo default: 2236e705c121SKalle Valo break; 2237e705c121SKalle Valo } 2238e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2239e705c121SKalle Valo } 2240e705c121SKalle Valo 2241e705c121SKalle Valo static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 2242e705c121SKalle Valo struct ieee80211_vif *vif, 2243e705c121SKalle Valo struct ieee80211_sta *sta) 2244e705c121SKalle Valo { 2245e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2246e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2247e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2248e705c121SKalle Valo 2249e705c121SKalle Valo /* 2250e705c121SKalle Valo * This is called before mac80211 does RCU synchronisation, 2251e705c121SKalle Valo * so here we already invalidate our internal RCU-protected 2252e705c121SKalle Valo * station pointer. The rest of the code will thus no longer 2253e705c121SKalle Valo * be able to find the station this way, and we don't rely 2254e705c121SKalle Valo * on further RCU synchronisation after the sta_state() 2255e705c121SKalle Valo * callback deleted the station. 2256e705c121SKalle Valo */ 2257e705c121SKalle Valo mutex_lock(&mvm->mutex); 2258e705c121SKalle Valo if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) 2259e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], 2260e705c121SKalle Valo ERR_PTR(-ENOENT)); 2261e705c121SKalle Valo 2262e705c121SKalle Valo if (mvm_sta->vif->type == NL80211_IFTYPE_AP) { 2263e705c121SKalle Valo mvmvif->ap_assoc_sta_count--; 2264e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2265e705c121SKalle Valo } 2266e705c121SKalle Valo 2267e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2268e705c121SKalle Valo } 2269e705c121SKalle Valo 2270e705c121SKalle Valo static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2271e705c121SKalle Valo const u8 *bssid) 2272e705c121SKalle Valo { 2273e705c121SKalle Valo if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 2274e705c121SKalle Valo return; 2275e705c121SKalle Valo 2276e705c121SKalle Valo if (iwlwifi_mod_params.uapsd_disable) { 2277e705c121SKalle Valo vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2278e705c121SKalle Valo return; 2279e705c121SKalle Valo } 2280e705c121SKalle Valo 2281e705c121SKalle Valo vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 2282e705c121SKalle Valo } 2283e705c121SKalle Valo 22841e8f1329SGolan Ben-Ami static void 22851e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 22861e8f1329SGolan Ben-Ami struct ieee80211_vif *vif, u8 *peer_addr, 22871e8f1329SGolan Ben-Ami enum nl80211_tdls_operation action) 22881e8f1329SGolan Ben-Ami { 22891e8f1329SGolan Ben-Ami struct iwl_fw_dbg_trigger_tlv *trig; 22901e8f1329SGolan Ben-Ami struct iwl_fw_dbg_trigger_tdls *tdls_trig; 22911e8f1329SGolan Ben-Ami 22921e8f1329SGolan Ben-Ami if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS)) 22931e8f1329SGolan Ben-Ami return; 22941e8f1329SGolan Ben-Ami 22951e8f1329SGolan Ben-Ami trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS); 22961e8f1329SGolan Ben-Ami tdls_trig = (void *)trig->data; 22971e8f1329SGolan Ben-Ami if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 22981e8f1329SGolan Ben-Ami return; 22991e8f1329SGolan Ben-Ami 23001e8f1329SGolan Ben-Ami if (!(tdls_trig->action_bitmap & BIT(action))) 23011e8f1329SGolan Ben-Ami return; 23021e8f1329SGolan Ben-Ami 23031e8f1329SGolan Ben-Ami if (tdls_trig->peer_mode && 23041e8f1329SGolan Ben-Ami memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 23051e8f1329SGolan Ben-Ami return; 23061e8f1329SGolan Ben-Ami 23071e8f1329SGolan Ben-Ami iwl_mvm_fw_dbg_collect_trig(mvm, trig, 23081e8f1329SGolan Ben-Ami "TDLS event occurred, peer %pM, action %d", 23091e8f1329SGolan Ben-Ami peer_addr, action); 23101e8f1329SGolan Ben-Ami } 23111e8f1329SGolan Ben-Ami 2312e705c121SKalle Valo static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 2313e705c121SKalle Valo struct ieee80211_vif *vif, 2314e705c121SKalle Valo struct ieee80211_sta *sta, 2315e705c121SKalle Valo enum ieee80211_sta_state old_state, 2316e705c121SKalle Valo enum ieee80211_sta_state new_state) 2317e705c121SKalle Valo { 2318e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2319e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2320e705c121SKalle Valo int ret; 2321e705c121SKalle Valo 2322e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 2323e705c121SKalle Valo sta->addr, old_state, new_state); 2324e705c121SKalle Valo 2325e705c121SKalle Valo /* this would be a mac80211 bug ... but don't crash */ 2326e705c121SKalle Valo if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) 2327e705c121SKalle Valo return -EINVAL; 2328e705c121SKalle Valo 2329e705c121SKalle Valo /* if a STA is being removed, reuse its ID */ 2330e705c121SKalle Valo flush_work(&mvm->sta_drained_wk); 2331e705c121SKalle Valo 2332e705c121SKalle Valo mutex_lock(&mvm->mutex); 2333e705c121SKalle Valo if (old_state == IEEE80211_STA_NOTEXIST && 2334e705c121SKalle Valo new_state == IEEE80211_STA_NONE) { 2335e705c121SKalle Valo /* 2336e705c121SKalle Valo * Firmware bug - it'll crash if the beacon interval is less 2337e705c121SKalle Valo * than 16. We can't avoid connecting at all, so refuse the 2338e705c121SKalle Valo * station state change, this will cause mac80211 to abandon 2339e705c121SKalle Valo * attempts to connect to this AP, and eventually wpa_s will 2340e705c121SKalle Valo * blacklist the AP... 2341e705c121SKalle Valo */ 2342e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 2343e705c121SKalle Valo vif->bss_conf.beacon_int < 16) { 2344e705c121SKalle Valo IWL_ERR(mvm, 2345e705c121SKalle Valo "AP %pM beacon interval is %d, refusing due to firmware bug!\n", 2346e705c121SKalle Valo sta->addr, vif->bss_conf.beacon_int); 2347e705c121SKalle Valo ret = -EINVAL; 2348e705c121SKalle Valo goto out_unlock; 2349e705c121SKalle Valo } 2350e705c121SKalle Valo 2351e705c121SKalle Valo if (sta->tdls && 2352e705c121SKalle Valo (vif->p2p || 2353e705c121SKalle Valo iwl_mvm_tdls_sta_count(mvm, NULL) == 2354e705c121SKalle Valo IWL_MVM_TDLS_STA_COUNT || 2355e705c121SKalle Valo iwl_mvm_phy_ctx_count(mvm) > 1)) { 2356e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 2357e705c121SKalle Valo ret = -EBUSY; 2358e705c121SKalle Valo goto out_unlock; 2359e705c121SKalle Valo } 2360e705c121SKalle Valo 2361e705c121SKalle Valo ret = iwl_mvm_add_sta(mvm, vif, sta); 23621e8f1329SGolan Ben-Ami if (sta->tdls && ret == 0) { 2363e705c121SKalle Valo iwl_mvm_recalc_tdls_state(mvm, vif, true); 23641e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 23651e8f1329SGolan Ben-Ami NL80211_TDLS_SETUP); 23661e8f1329SGolan Ben-Ami } 2367e705c121SKalle Valo } else if (old_state == IEEE80211_STA_NONE && 2368e705c121SKalle Valo new_state == IEEE80211_STA_AUTH) { 2369e705c121SKalle Valo /* 2370e705c121SKalle Valo * EBS may be disabled due to previous failures reported by FW. 2371e705c121SKalle Valo * Reset EBS status here assuming environment has been changed. 2372e705c121SKalle Valo */ 2373e705c121SKalle Valo mvm->last_ebs_successful = true; 2374e705c121SKalle Valo iwl_mvm_check_uapsd(mvm, vif, sta->addr); 2375e705c121SKalle Valo ret = 0; 2376e705c121SKalle Valo } else if (old_state == IEEE80211_STA_AUTH && 2377e705c121SKalle Valo new_state == IEEE80211_STA_ASSOC) { 2378e705c121SKalle Valo ret = iwl_mvm_update_sta(mvm, vif, sta); 2379e705c121SKalle Valo if (ret == 0) 2380e705c121SKalle Valo iwl_mvm_rs_rate_init(mvm, sta, 2381e705c121SKalle Valo mvmvif->phy_ctxt->channel->band, 2382e705c121SKalle Valo true); 2383e705c121SKalle Valo } else if (old_state == IEEE80211_STA_ASSOC && 2384e705c121SKalle Valo new_state == IEEE80211_STA_AUTHORIZED) { 2385e705c121SKalle Valo 2386e705c121SKalle Valo /* we don't support TDLS during DCM */ 2387e705c121SKalle Valo if (iwl_mvm_phy_ctx_count(mvm) > 1) 2388e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 2389e705c121SKalle Valo 23901e8f1329SGolan Ben-Ami if (sta->tdls) 23911e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 23921e8f1329SGolan Ben-Ami NL80211_TDLS_ENABLE_LINK); 23931e8f1329SGolan Ben-Ami 2394e705c121SKalle Valo /* enable beacon filtering */ 2395e705c121SKalle Valo WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2396e705c121SKalle Valo ret = 0; 2397e705c121SKalle Valo } else if (old_state == IEEE80211_STA_AUTHORIZED && 2398e705c121SKalle Valo new_state == IEEE80211_STA_ASSOC) { 2399e705c121SKalle Valo /* disable beacon filtering */ 2400e705c121SKalle Valo WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0)); 2401e705c121SKalle Valo ret = 0; 2402e705c121SKalle Valo } else if (old_state == IEEE80211_STA_ASSOC && 2403e705c121SKalle Valo new_state == IEEE80211_STA_AUTH) { 2404e705c121SKalle Valo ret = 0; 2405e705c121SKalle Valo } else if (old_state == IEEE80211_STA_AUTH && 2406e705c121SKalle Valo new_state == IEEE80211_STA_NONE) { 2407e705c121SKalle Valo ret = 0; 2408e705c121SKalle Valo } else if (old_state == IEEE80211_STA_NONE && 2409e705c121SKalle Valo new_state == IEEE80211_STA_NOTEXIST) { 2410e705c121SKalle Valo ret = iwl_mvm_rm_sta(mvm, vif, sta); 24111e8f1329SGolan Ben-Ami if (sta->tdls) { 2412e705c121SKalle Valo iwl_mvm_recalc_tdls_state(mvm, vif, false); 24131e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 24141e8f1329SGolan Ben-Ami NL80211_TDLS_DISABLE_LINK); 24151e8f1329SGolan Ben-Ami } 2416e705c121SKalle Valo } else { 2417e705c121SKalle Valo ret = -EIO; 2418e705c121SKalle Valo } 2419e705c121SKalle Valo out_unlock: 2420e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2421e705c121SKalle Valo 2422e705c121SKalle Valo if (sta->tdls && ret == 0) { 2423e705c121SKalle Valo if (old_state == IEEE80211_STA_NOTEXIST && 2424e705c121SKalle Valo new_state == IEEE80211_STA_NONE) 2425e705c121SKalle Valo ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 2426e705c121SKalle Valo else if (old_state == IEEE80211_STA_NONE && 2427e705c121SKalle Valo new_state == IEEE80211_STA_NOTEXIST) 2428e705c121SKalle Valo ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 2429e705c121SKalle Valo } 2430e705c121SKalle Valo 2431e705c121SKalle Valo return ret; 2432e705c121SKalle Valo } 2433e705c121SKalle Valo 2434e705c121SKalle Valo static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 2435e705c121SKalle Valo { 2436e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2437e705c121SKalle Valo 2438e705c121SKalle Valo mvm->rts_threshold = value; 2439e705c121SKalle Valo 2440e705c121SKalle Valo return 0; 2441e705c121SKalle Valo } 2442e705c121SKalle Valo 2443e705c121SKalle Valo static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, 2444e705c121SKalle Valo struct ieee80211_vif *vif, 2445e705c121SKalle Valo struct ieee80211_sta *sta, u32 changed) 2446e705c121SKalle Valo { 2447e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2448e705c121SKalle Valo 2449e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 2450e705c121SKalle Valo changed & IEEE80211_RC_NSS_CHANGED) 2451e705c121SKalle Valo iwl_mvm_sf_update(mvm, vif, false); 2452e705c121SKalle Valo } 2453e705c121SKalle Valo 2454e705c121SKalle Valo static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 2455e705c121SKalle Valo struct ieee80211_vif *vif, u16 ac, 2456e705c121SKalle Valo const struct ieee80211_tx_queue_params *params) 2457e705c121SKalle Valo { 2458e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2459e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2460e705c121SKalle Valo 2461e705c121SKalle Valo mvmvif->queue_params[ac] = *params; 2462e705c121SKalle Valo 2463e705c121SKalle Valo /* 2464e705c121SKalle Valo * No need to update right away, we'll get BSS_CHANGED_QOS 2465e705c121SKalle Valo * The exception is P2P_DEVICE interface which needs immediate update. 2466e705c121SKalle Valo */ 2467e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 2468e705c121SKalle Valo int ret; 2469e705c121SKalle Valo 2470e705c121SKalle Valo mutex_lock(&mvm->mutex); 2471e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2472e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2473e705c121SKalle Valo return ret; 2474e705c121SKalle Valo } 2475e705c121SKalle Valo return 0; 2476e705c121SKalle Valo } 2477e705c121SKalle Valo 2478e705c121SKalle Valo static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 2479e705c121SKalle Valo struct ieee80211_vif *vif) 2480e705c121SKalle Valo { 2481e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2482e705c121SKalle Valo u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS, 2483e705c121SKalle Valo 200 + vif->bss_conf.beacon_int); 2484e705c121SKalle Valo u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS, 2485e705c121SKalle Valo 100 + vif->bss_conf.beacon_int); 2486e705c121SKalle Valo 2487e705c121SKalle Valo if (WARN_ON_ONCE(vif->bss_conf.assoc)) 2488e705c121SKalle Valo return; 2489e705c121SKalle Valo 2490e705c121SKalle Valo /* 2491e705c121SKalle Valo * iwl_mvm_protect_session() reads directly from the device 2492e705c121SKalle Valo * (the system time), so make sure it is available. 2493e705c121SKalle Valo */ 2494e705c121SKalle Valo if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX)) 2495e705c121SKalle Valo return; 2496e705c121SKalle Valo 2497e705c121SKalle Valo mutex_lock(&mvm->mutex); 2498e705c121SKalle Valo /* Try really hard to protect the session and hear a beacon */ 2499e705c121SKalle Valo iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false); 2500e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2501e705c121SKalle Valo 2502e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX); 2503e705c121SKalle Valo } 2504e705c121SKalle Valo 2505e705c121SKalle Valo static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 2506e705c121SKalle Valo struct ieee80211_vif *vif, 2507e705c121SKalle Valo struct cfg80211_sched_scan_request *req, 2508e705c121SKalle Valo struct ieee80211_scan_ies *ies) 2509e705c121SKalle Valo { 2510e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2511e705c121SKalle Valo 2512e705c121SKalle Valo int ret; 2513e705c121SKalle Valo 2514e705c121SKalle Valo mutex_lock(&mvm->mutex); 2515e705c121SKalle Valo 2516e705c121SKalle Valo if (!vif->bss_conf.idle) { 2517e705c121SKalle Valo ret = -EBUSY; 2518e705c121SKalle Valo goto out; 2519e705c121SKalle Valo } 2520e705c121SKalle Valo 2521e705c121SKalle Valo ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 2522e705c121SKalle Valo 2523e705c121SKalle Valo out: 2524e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2525e705c121SKalle Valo return ret; 2526e705c121SKalle Valo } 2527e705c121SKalle Valo 2528e705c121SKalle Valo static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 2529e705c121SKalle Valo struct ieee80211_vif *vif) 2530e705c121SKalle Valo { 2531e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2532e705c121SKalle Valo int ret; 2533e705c121SKalle Valo 2534e705c121SKalle Valo mutex_lock(&mvm->mutex); 2535e705c121SKalle Valo 2536e705c121SKalle Valo /* Due to a race condition, it's possible that mac80211 asks 2537e705c121SKalle Valo * us to stop a sched_scan when it's already stopped. This 2538e705c121SKalle Valo * can happen, for instance, if we stopped the scan ourselves, 2539e705c121SKalle Valo * called ieee80211_sched_scan_stopped() and the userspace called 2540e705c121SKalle Valo * stop sched scan scan before ieee80211_sched_scan_stopped_work() 2541e705c121SKalle Valo * could run. To handle this, simply return if the scan is 2542e705c121SKalle Valo * not running. 2543e705c121SKalle Valo */ 2544e705c121SKalle Valo if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 2545e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2546e705c121SKalle Valo return 0; 2547e705c121SKalle Valo } 2548e705c121SKalle Valo 2549e705c121SKalle Valo ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 2550e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2551e705c121SKalle Valo iwl_mvm_wait_for_async_handlers(mvm); 2552e705c121SKalle Valo 2553e705c121SKalle Valo return ret; 2554e705c121SKalle Valo } 2555e705c121SKalle Valo 2556e705c121SKalle Valo static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 2557e705c121SKalle Valo enum set_key_cmd cmd, 2558e705c121SKalle Valo struct ieee80211_vif *vif, 2559e705c121SKalle Valo struct ieee80211_sta *sta, 2560e705c121SKalle Valo struct ieee80211_key_conf *key) 2561e705c121SKalle Valo { 2562e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2563e705c121SKalle Valo int ret; 25644615fd15SEmmanuel Grumbach u8 key_offset; 2565e705c121SKalle Valo 2566e705c121SKalle Valo if (iwlwifi_mod_params.sw_crypto) { 2567e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); 2568e705c121SKalle Valo return -EOPNOTSUPP; 2569e705c121SKalle Valo } 2570e705c121SKalle Valo 2571e705c121SKalle Valo switch (key->cipher) { 2572e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 2573e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 2574e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; 2575e705c121SKalle Valo break; 2576e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 2577e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 2578e705c121SKalle Valo break; 2579e705c121SKalle Valo case WLAN_CIPHER_SUITE_AES_CMAC: 2580e705c121SKalle Valo WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 2581e705c121SKalle Valo break; 2582e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 2583e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 2584e705c121SKalle Valo /* For non-client mode, only use WEP keys for TX as we probably 2585e705c121SKalle Valo * don't have a station yet anyway and would then have to keep 2586e705c121SKalle Valo * track of the keys, linking them to each of the clients/peers 2587e705c121SKalle Valo * as they appear. For now, don't do that, for performance WEP 2588e705c121SKalle Valo * offload doesn't really matter much, but we need it for some 2589e705c121SKalle Valo * other offload features in client mode. 2590e705c121SKalle Valo */ 2591e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION) 2592e705c121SKalle Valo return 0; 2593e705c121SKalle Valo break; 2594e705c121SKalle Valo default: 2595e705c121SKalle Valo /* currently FW supports only one optional cipher scheme */ 2596e705c121SKalle Valo if (hw->n_cipher_schemes && 2597e705c121SKalle Valo hw->cipher_schemes->cipher == key->cipher) 2598e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 2599e705c121SKalle Valo else 2600e705c121SKalle Valo return -EOPNOTSUPP; 2601e705c121SKalle Valo } 2602e705c121SKalle Valo 2603e705c121SKalle Valo mutex_lock(&mvm->mutex); 2604e705c121SKalle Valo 2605e705c121SKalle Valo switch (cmd) { 2606e705c121SKalle Valo case SET_KEY: 2607e705c121SKalle Valo if ((vif->type == NL80211_IFTYPE_ADHOC || 2608e705c121SKalle Valo vif->type == NL80211_IFTYPE_AP) && !sta) { 2609e705c121SKalle Valo /* 2610e705c121SKalle Valo * GTK on AP interface is a TX-only key, return 0; 2611e705c121SKalle Valo * on IBSS they're per-station and because we're lazy 2612e705c121SKalle Valo * we don't support them for RX, so do the same. 2613e705c121SKalle Valo */ 2614e705c121SKalle Valo ret = 0; 2615e705c121SKalle Valo key->hw_key_idx = STA_KEY_IDX_INVALID; 2616e705c121SKalle Valo break; 2617e705c121SKalle Valo } 2618e705c121SKalle Valo 2619e705c121SKalle Valo /* During FW restart, in order to restore the state as it was, 2620e705c121SKalle Valo * don't try to reprogram keys we previously failed for. 2621e705c121SKalle Valo */ 2622e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2623e705c121SKalle Valo key->hw_key_idx == STA_KEY_IDX_INVALID) { 2624e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, 2625e705c121SKalle Valo "skip invalid idx key programming during restart\n"); 2626e705c121SKalle Valo ret = 0; 2627e705c121SKalle Valo break; 2628e705c121SKalle Valo } 2629e705c121SKalle Valo 26304615fd15SEmmanuel Grumbach /* in HW restart reuse the index, otherwise request a new one */ 26314615fd15SEmmanuel Grumbach if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 26324615fd15SEmmanuel Grumbach key_offset = key->hw_key_idx; 26334615fd15SEmmanuel Grumbach else 26344615fd15SEmmanuel Grumbach key_offset = STA_KEY_IDX_INVALID; 26354615fd15SEmmanuel Grumbach 2636e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); 26374615fd15SEmmanuel Grumbach ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 2638e705c121SKalle Valo if (ret) { 2639e705c121SKalle Valo IWL_WARN(mvm, "set key failed\n"); 2640e705c121SKalle Valo /* 2641e705c121SKalle Valo * can't add key for RX, but we don't need it 2642e705c121SKalle Valo * in the device for TX so still return 0 2643e705c121SKalle Valo */ 2644e705c121SKalle Valo key->hw_key_idx = STA_KEY_IDX_INVALID; 2645e705c121SKalle Valo ret = 0; 2646e705c121SKalle Valo } 2647e705c121SKalle Valo 2648e705c121SKalle Valo break; 2649e705c121SKalle Valo case DISABLE_KEY: 2650e705c121SKalle Valo if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 2651e705c121SKalle Valo ret = 0; 2652e705c121SKalle Valo break; 2653e705c121SKalle Valo } 2654e705c121SKalle Valo 2655e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 2656e705c121SKalle Valo ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 2657e705c121SKalle Valo break; 2658e705c121SKalle Valo default: 2659e705c121SKalle Valo ret = -EINVAL; 2660e705c121SKalle Valo } 2661e705c121SKalle Valo 2662e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2663e705c121SKalle Valo return ret; 2664e705c121SKalle Valo } 2665e705c121SKalle Valo 2666e705c121SKalle Valo static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 2667e705c121SKalle Valo struct ieee80211_vif *vif, 2668e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 2669e705c121SKalle Valo struct ieee80211_sta *sta, 2670e705c121SKalle Valo u32 iv32, u16 *phase1key) 2671e705c121SKalle Valo { 2672e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2673e705c121SKalle Valo 2674e705c121SKalle Valo if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 2675e705c121SKalle Valo return; 2676e705c121SKalle Valo 2677e705c121SKalle Valo iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 2678e705c121SKalle Valo } 2679e705c121SKalle Valo 2680e705c121SKalle Valo 2681e705c121SKalle Valo static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 2682e705c121SKalle Valo struct iwl_rx_packet *pkt, void *data) 2683e705c121SKalle Valo { 2684e705c121SKalle Valo struct iwl_mvm *mvm = 2685e705c121SKalle Valo container_of(notif_wait, struct iwl_mvm, notif_wait); 2686e705c121SKalle Valo struct iwl_hs20_roc_res *resp; 2687e705c121SKalle Valo int resp_len = iwl_rx_packet_payload_len(pkt); 2688e705c121SKalle Valo struct iwl_mvm_time_event_data *te_data = data; 2689e705c121SKalle Valo 2690e705c121SKalle Valo if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 2691e705c121SKalle Valo return true; 2692e705c121SKalle Valo 2693e705c121SKalle Valo if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 2694e705c121SKalle Valo IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 2695e705c121SKalle Valo return true; 2696e705c121SKalle Valo } 2697e705c121SKalle Valo 2698e705c121SKalle Valo resp = (void *)pkt->data; 2699e705c121SKalle Valo 2700e705c121SKalle Valo IWL_DEBUG_TE(mvm, 2701e705c121SKalle Valo "Aux ROC: Recieved response from ucode: status=%d uid=%d\n", 2702e705c121SKalle Valo resp->status, resp->event_unique_id); 2703e705c121SKalle Valo 2704e705c121SKalle Valo te_data->uid = le32_to_cpu(resp->event_unique_id); 2705e705c121SKalle Valo IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 2706e705c121SKalle Valo te_data->uid); 2707e705c121SKalle Valo 2708e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 2709e705c121SKalle Valo list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 2710e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 2711e705c121SKalle Valo 2712e705c121SKalle Valo return true; 2713e705c121SKalle Valo } 2714e705c121SKalle Valo 2715dc28e12fSMatti Gottlieb #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 2716dc28e12fSMatti Gottlieb #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 2717dc28e12fSMatti Gottlieb #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 2718dc28e12fSMatti Gottlieb #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 2719dc28e12fSMatti Gottlieb #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 2720e705c121SKalle Valo static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 2721e705c121SKalle Valo struct ieee80211_channel *channel, 2722e705c121SKalle Valo struct ieee80211_vif *vif, 2723e705c121SKalle Valo int duration) 2724e705c121SKalle Valo { 2725e705c121SKalle Valo int res, time_reg = DEVICE_SYSTEM_TIME_REG; 2726e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2727e705c121SKalle Valo struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 2728e705c121SKalle Valo static const u16 time_event_response[] = { HOT_SPOT_CMD }; 2729e705c121SKalle Valo struct iwl_notification_wait wait_time_event; 2730dc28e12fSMatti Gottlieb u32 dtim_interval = vif->bss_conf.dtim_period * 2731dc28e12fSMatti Gottlieb vif->bss_conf.beacon_int; 2732dc28e12fSMatti Gottlieb u32 req_dur, delay; 2733e705c121SKalle Valo struct iwl_hs20_roc_req aux_roc_req = { 2734e705c121SKalle Valo .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 2735e705c121SKalle Valo .id_and_color = 2736e705c121SKalle Valo cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 2737e705c121SKalle Valo .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 2738e705c121SKalle Valo /* Set the channel info data */ 2739e705c121SKalle Valo .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ? 2740e705c121SKalle Valo PHY_BAND_24 : PHY_BAND_5, 2741e705c121SKalle Valo .channel_info.channel = channel->hw_value, 2742e705c121SKalle Valo .channel_info.width = PHY_VHT_CHANNEL_MODE20, 2743e705c121SKalle Valo /* Set the time and duration */ 2744e705c121SKalle Valo .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)), 2745e705c121SKalle Valo }; 2746e705c121SKalle Valo 2747dc28e12fSMatti Gottlieb delay = AUX_ROC_MIN_DELAY; 2748dc28e12fSMatti Gottlieb req_dur = MSEC_TO_TU(duration); 2749dc28e12fSMatti Gottlieb 2750dc28e12fSMatti Gottlieb /* 2751dc28e12fSMatti Gottlieb * If we are associated we want the delay time to be at least one 2752dc28e12fSMatti Gottlieb * dtim interval so that the FW can wait until after the DTIM and 2753dc28e12fSMatti Gottlieb * then start the time event, this will potentially allow us to 2754dc28e12fSMatti Gottlieb * remain off-channel for the max duration. 2755dc28e12fSMatti Gottlieb * Since we want to use almost a whole dtim interval we would also 2756dc28e12fSMatti Gottlieb * like the delay to be for 2-3 dtim intervals, in case there are 2757dc28e12fSMatti Gottlieb * other time events with higher priority. 2758dc28e12fSMatti Gottlieb */ 2759dc28e12fSMatti Gottlieb if (vif->bss_conf.assoc) { 2760dc28e12fSMatti Gottlieb delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 2761dc28e12fSMatti Gottlieb /* We cannot remain off-channel longer than the DTIM interval */ 2762dc28e12fSMatti Gottlieb if (dtim_interval <= req_dur) { 2763dc28e12fSMatti Gottlieb req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 2764dc28e12fSMatti Gottlieb if (req_dur <= AUX_ROC_MIN_DURATION) 2765dc28e12fSMatti Gottlieb req_dur = dtim_interval - 2766dc28e12fSMatti Gottlieb AUX_ROC_MIN_SAFETY_BUFFER; 2767dc28e12fSMatti Gottlieb } 2768dc28e12fSMatti Gottlieb } 2769dc28e12fSMatti Gottlieb 2770dc28e12fSMatti Gottlieb aux_roc_req.duration = cpu_to_le32(req_dur); 2771dc28e12fSMatti Gottlieb aux_roc_req.apply_time_max_delay = cpu_to_le32(delay); 2772dc28e12fSMatti Gottlieb 2773dc28e12fSMatti Gottlieb IWL_DEBUG_TE(mvm, 2774dc28e12fSMatti Gottlieb "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 2775dc28e12fSMatti Gottlieb channel->hw_value, req_dur, duration, delay, 2776dc28e12fSMatti Gottlieb dtim_interval); 2777e705c121SKalle Valo /* Set the node address */ 2778e705c121SKalle Valo memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN); 2779e705c121SKalle Valo 2780e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2781e705c121SKalle Valo 2782e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 2783e705c121SKalle Valo 2784e705c121SKalle Valo if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 2785e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 2786e705c121SKalle Valo return -EIO; 2787e705c121SKalle Valo } 2788e705c121SKalle Valo 2789e705c121SKalle Valo te_data->vif = vif; 2790e705c121SKalle Valo te_data->duration = duration; 2791e705c121SKalle Valo te_data->id = HOT_SPOT_CMD; 2792e705c121SKalle Valo 2793e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 2794e705c121SKalle Valo 2795e705c121SKalle Valo /* 2796e705c121SKalle Valo * Use a notification wait, which really just processes the 2797e705c121SKalle Valo * command response and doesn't wait for anything, in order 2798e705c121SKalle Valo * to be able to process the response and get the UID inside 2799e705c121SKalle Valo * the RX path. Using CMD_WANT_SKB doesn't work because it 2800e705c121SKalle Valo * stores the buffer and then wakes up this thread, by which 2801e705c121SKalle Valo * time another notification (that the time event started) 2802e705c121SKalle Valo * might already be processed unsuccessfully. 2803e705c121SKalle Valo */ 2804e705c121SKalle Valo iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 2805e705c121SKalle Valo time_event_response, 2806e705c121SKalle Valo ARRAY_SIZE(time_event_response), 2807e705c121SKalle Valo iwl_mvm_rx_aux_roc, te_data); 2808e705c121SKalle Valo 2809e705c121SKalle Valo res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req), 2810e705c121SKalle Valo &aux_roc_req); 2811e705c121SKalle Valo 2812e705c121SKalle Valo if (res) { 2813e705c121SKalle Valo IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 2814e705c121SKalle Valo iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 2815e705c121SKalle Valo goto out_clear_te; 2816e705c121SKalle Valo } 2817e705c121SKalle Valo 2818e705c121SKalle Valo /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 2819e705c121SKalle Valo res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 2820e705c121SKalle Valo /* should never fail */ 2821e705c121SKalle Valo WARN_ON_ONCE(res); 2822e705c121SKalle Valo 2823e705c121SKalle Valo if (res) { 2824e705c121SKalle Valo out_clear_te: 2825e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 2826e705c121SKalle Valo iwl_mvm_te_clear_data(mvm, te_data); 2827e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 2828e705c121SKalle Valo } 2829e705c121SKalle Valo 2830e705c121SKalle Valo return res; 2831e705c121SKalle Valo } 2832e705c121SKalle Valo 2833e705c121SKalle Valo static int iwl_mvm_roc(struct ieee80211_hw *hw, 2834e705c121SKalle Valo struct ieee80211_vif *vif, 2835e705c121SKalle Valo struct ieee80211_channel *channel, 2836e705c121SKalle Valo int duration, 2837e705c121SKalle Valo enum ieee80211_roc_type type) 2838e705c121SKalle Valo { 2839e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2840e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2841e705c121SKalle Valo struct cfg80211_chan_def chandef; 2842e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt; 2843e705c121SKalle Valo int ret, i; 2844e705c121SKalle Valo 2845e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 2846e705c121SKalle Valo duration, type); 2847e705c121SKalle Valo 2848e705c121SKalle Valo flush_work(&mvm->roc_done_wk); 2849e705c121SKalle Valo 2850e705c121SKalle Valo mutex_lock(&mvm->mutex); 2851e705c121SKalle Valo 2852e705c121SKalle Valo switch (vif->type) { 2853e705c121SKalle Valo case NL80211_IFTYPE_STATION: 2854e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 2855e705c121SKalle Valo IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 2856e705c121SKalle Valo /* Use aux roc framework (HS20) */ 2857e705c121SKalle Valo ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 2858e705c121SKalle Valo vif, duration); 2859e705c121SKalle Valo goto out_unlock; 2860e705c121SKalle Valo } 2861e705c121SKalle Valo IWL_ERR(mvm, "hotspot not supported\n"); 2862e705c121SKalle Valo ret = -EINVAL; 2863e705c121SKalle Valo goto out_unlock; 2864e705c121SKalle Valo case NL80211_IFTYPE_P2P_DEVICE: 2865e705c121SKalle Valo /* handle below */ 2866e705c121SKalle Valo break; 2867e705c121SKalle Valo default: 2868e705c121SKalle Valo IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 2869e705c121SKalle Valo ret = -EINVAL; 2870e705c121SKalle Valo goto out_unlock; 2871e705c121SKalle Valo } 2872e705c121SKalle Valo 2873e705c121SKalle Valo for (i = 0; i < NUM_PHY_CTX; i++) { 2874e705c121SKalle Valo phy_ctxt = &mvm->phy_ctxts[i]; 2875e705c121SKalle Valo if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) 2876e705c121SKalle Valo continue; 2877e705c121SKalle Valo 2878e705c121SKalle Valo if (phy_ctxt->ref && channel == phy_ctxt->channel) { 2879e705c121SKalle Valo /* 2880e705c121SKalle Valo * Unbind the P2P_DEVICE from the current PHY context, 2881e705c121SKalle Valo * and if the PHY context is not used remove it. 2882e705c121SKalle Valo */ 2883e705c121SKalle Valo ret = iwl_mvm_binding_remove_vif(mvm, vif); 2884e705c121SKalle Valo if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 2885e705c121SKalle Valo goto out_unlock; 2886e705c121SKalle Valo 2887e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 2888e705c121SKalle Valo 2889e705c121SKalle Valo /* Bind the P2P_DEVICE to the current PHY Context */ 2890e705c121SKalle Valo mvmvif->phy_ctxt = phy_ctxt; 2891e705c121SKalle Valo 2892e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 2893e705c121SKalle Valo if (WARN(ret, "Failed binding P2P_DEVICE\n")) 2894e705c121SKalle Valo goto out_unlock; 2895e705c121SKalle Valo 2896e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 2897e705c121SKalle Valo goto schedule_time_event; 2898e705c121SKalle Valo } 2899e705c121SKalle Valo } 2900e705c121SKalle Valo 2901e705c121SKalle Valo /* Need to update the PHY context only if the ROC channel changed */ 2902e705c121SKalle Valo if (channel == mvmvif->phy_ctxt->channel) 2903e705c121SKalle Valo goto schedule_time_event; 2904e705c121SKalle Valo 2905e705c121SKalle Valo cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 2906e705c121SKalle Valo 2907e705c121SKalle Valo /* 2908e705c121SKalle Valo * Change the PHY context configuration as it is currently referenced 2909e705c121SKalle Valo * only by the P2P Device MAC 2910e705c121SKalle Valo */ 2911e705c121SKalle Valo if (mvmvif->phy_ctxt->ref == 1) { 2912e705c121SKalle Valo ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, 2913e705c121SKalle Valo &chandef, 1, 1); 2914e705c121SKalle Valo if (ret) 2915e705c121SKalle Valo goto out_unlock; 2916e705c121SKalle Valo } else { 2917e705c121SKalle Valo /* 2918e705c121SKalle Valo * The PHY context is shared with other MACs. Need to remove the 2919e705c121SKalle Valo * P2P Device from the binding, allocate an new PHY context and 2920e705c121SKalle Valo * create a new binding 2921e705c121SKalle Valo */ 2922e705c121SKalle Valo phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 2923e705c121SKalle Valo if (!phy_ctxt) { 2924e705c121SKalle Valo ret = -ENOSPC; 2925e705c121SKalle Valo goto out_unlock; 2926e705c121SKalle Valo } 2927e705c121SKalle Valo 2928e705c121SKalle Valo ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 2929e705c121SKalle Valo 1, 1); 2930e705c121SKalle Valo if (ret) { 2931e705c121SKalle Valo IWL_ERR(mvm, "Failed to change PHY context\n"); 2932e705c121SKalle Valo goto out_unlock; 2933e705c121SKalle Valo } 2934e705c121SKalle Valo 2935e705c121SKalle Valo /* Unbind the P2P_DEVICE from the current PHY context */ 2936e705c121SKalle Valo ret = iwl_mvm_binding_remove_vif(mvm, vif); 2937e705c121SKalle Valo if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 2938e705c121SKalle Valo goto out_unlock; 2939e705c121SKalle Valo 2940e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 2941e705c121SKalle Valo 2942e705c121SKalle Valo /* Bind the P2P_DEVICE to the new allocated PHY context */ 2943e705c121SKalle Valo mvmvif->phy_ctxt = phy_ctxt; 2944e705c121SKalle Valo 2945e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 2946e705c121SKalle Valo if (WARN(ret, "Failed binding P2P_DEVICE\n")) 2947e705c121SKalle Valo goto out_unlock; 2948e705c121SKalle Valo 2949e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 2950e705c121SKalle Valo } 2951e705c121SKalle Valo 2952e705c121SKalle Valo schedule_time_event: 2953e705c121SKalle Valo /* Schedule the time events */ 2954e705c121SKalle Valo ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 2955e705c121SKalle Valo 2956e705c121SKalle Valo out_unlock: 2957e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2958e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "leave\n"); 2959e705c121SKalle Valo return ret; 2960e705c121SKalle Valo } 2961e705c121SKalle Valo 2962e705c121SKalle Valo static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) 2963e705c121SKalle Valo { 2964e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2965e705c121SKalle Valo 2966e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "enter\n"); 2967e705c121SKalle Valo 2968e705c121SKalle Valo mutex_lock(&mvm->mutex); 2969e705c121SKalle Valo iwl_mvm_stop_roc(mvm); 2970e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2971e705c121SKalle Valo 2972e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "leave\n"); 2973e705c121SKalle Valo return 0; 2974e705c121SKalle Valo } 2975e705c121SKalle Valo 2976e705c121SKalle Valo static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 2977e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 2978e705c121SKalle Valo { 2979e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 2980e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt; 2981e705c121SKalle Valo int ret; 2982e705c121SKalle Valo 2983e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2984e705c121SKalle Valo 2985e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 2986e705c121SKalle Valo 2987e705c121SKalle Valo phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 2988e705c121SKalle Valo if (!phy_ctxt) { 2989e705c121SKalle Valo ret = -ENOSPC; 2990e705c121SKalle Valo goto out; 2991e705c121SKalle Valo } 2992e705c121SKalle Valo 2993e705c121SKalle Valo ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, 2994e705c121SKalle Valo ctx->rx_chains_static, 2995e705c121SKalle Valo ctx->rx_chains_dynamic); 2996e705c121SKalle Valo if (ret) { 2997e705c121SKalle Valo IWL_ERR(mvm, "Failed to add PHY context\n"); 2998e705c121SKalle Valo goto out; 2999e705c121SKalle Valo } 3000e705c121SKalle Valo 3001e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 3002e705c121SKalle Valo *phy_ctxt_id = phy_ctxt->id; 3003e705c121SKalle Valo out: 3004e705c121SKalle Valo return ret; 3005e705c121SKalle Valo } 3006e705c121SKalle Valo 3007e705c121SKalle Valo static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 3008e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3009e705c121SKalle Valo { 3010e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3011e705c121SKalle Valo int ret; 3012e705c121SKalle Valo 3013e705c121SKalle Valo mutex_lock(&mvm->mutex); 3014e705c121SKalle Valo ret = __iwl_mvm_add_chanctx(mvm, ctx); 3015e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3016e705c121SKalle Valo 3017e705c121SKalle Valo return ret; 3018e705c121SKalle Valo } 3019e705c121SKalle Valo 3020e705c121SKalle Valo static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 3021e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3022e705c121SKalle Valo { 3023e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3024e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3025e705c121SKalle Valo 3026e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3027e705c121SKalle Valo 3028e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 3029e705c121SKalle Valo } 3030e705c121SKalle Valo 3031e705c121SKalle Valo static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 3032e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3033e705c121SKalle Valo { 3034e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3035e705c121SKalle Valo 3036e705c121SKalle Valo mutex_lock(&mvm->mutex); 3037e705c121SKalle Valo __iwl_mvm_remove_chanctx(mvm, ctx); 3038e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3039e705c121SKalle Valo } 3040e705c121SKalle Valo 3041e705c121SKalle Valo static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 3042e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx, 3043e705c121SKalle Valo u32 changed) 3044e705c121SKalle Valo { 3045e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3046e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3047e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3048e705c121SKalle Valo 3049e705c121SKalle Valo if (WARN_ONCE((phy_ctxt->ref > 1) && 3050e705c121SKalle Valo (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 3051e705c121SKalle Valo IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 3052e705c121SKalle Valo IEEE80211_CHANCTX_CHANGE_RADAR | 3053e705c121SKalle Valo IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 3054e705c121SKalle Valo "Cannot change PHY. Ref=%d, changed=0x%X\n", 3055e705c121SKalle Valo phy_ctxt->ref, changed)) 3056e705c121SKalle Valo return; 3057e705c121SKalle Valo 3058e705c121SKalle Valo mutex_lock(&mvm->mutex); 3059e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 3060e705c121SKalle Valo iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, 3061e705c121SKalle Valo ctx->rx_chains_static, 3062e705c121SKalle Valo ctx->rx_chains_dynamic); 3063e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3064e705c121SKalle Valo } 3065e705c121SKalle Valo 3066e705c121SKalle Valo static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 3067e705c121SKalle Valo struct ieee80211_vif *vif, 3068e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx, 3069e705c121SKalle Valo bool switching_chanctx) 3070e705c121SKalle Valo { 3071e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3072e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3073e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3074e705c121SKalle Valo int ret; 3075e705c121SKalle Valo 3076e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3077e705c121SKalle Valo 3078e705c121SKalle Valo mvmvif->phy_ctxt = phy_ctxt; 3079e705c121SKalle Valo 3080e705c121SKalle Valo switch (vif->type) { 3081e705c121SKalle Valo case NL80211_IFTYPE_AP: 3082e705c121SKalle Valo /* only needed if we're switching chanctx (i.e. during CSA) */ 3083e705c121SKalle Valo if (switching_chanctx) { 3084e705c121SKalle Valo mvmvif->ap_ibss_active = true; 3085e705c121SKalle Valo break; 3086e705c121SKalle Valo } 3087e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 3088e705c121SKalle Valo /* 3089e705c121SKalle Valo * The AP binding flow is handled as part of the start_ap flow 3090e705c121SKalle Valo * (in bss_info_changed), similarly for IBSS. 3091e705c121SKalle Valo */ 3092e705c121SKalle Valo ret = 0; 3093e705c121SKalle Valo goto out; 3094e705c121SKalle Valo case NL80211_IFTYPE_STATION: 3095e705c121SKalle Valo break; 3096e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 3097e705c121SKalle Valo /* always disable PS when a monitor interface is active */ 3098e705c121SKalle Valo mvmvif->ps_disabled = true; 3099e705c121SKalle Valo break; 3100e705c121SKalle Valo default: 3101e705c121SKalle Valo ret = -EINVAL; 3102e705c121SKalle Valo goto out; 3103e705c121SKalle Valo } 3104e705c121SKalle Valo 3105e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 3106e705c121SKalle Valo if (ret) 3107e705c121SKalle Valo goto out; 3108e705c121SKalle Valo 3109e705c121SKalle Valo /* 3110e705c121SKalle Valo * Power state must be updated before quotas, 3111e705c121SKalle Valo * otherwise fw will complain. 3112e705c121SKalle Valo */ 3113e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 3114e705c121SKalle Valo 3115e705c121SKalle Valo /* Setting the quota at this stage is only required for monitor 3116e705c121SKalle Valo * interfaces. For the other types, the bss_info changed flow 3117e705c121SKalle Valo * will handle quota settings. 3118e705c121SKalle Valo */ 3119e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_MONITOR) { 3120e705c121SKalle Valo mvmvif->monitor_active = true; 3121e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, false, NULL); 3122e705c121SKalle Valo if (ret) 3123e705c121SKalle Valo goto out_remove_binding; 3124e705c121SKalle Valo } 3125e705c121SKalle Valo 3126e705c121SKalle Valo /* Handle binding during CSA */ 3127e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP) { 3128e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, NULL); 3129e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3130e705c121SKalle Valo } 3131e705c121SKalle Valo 3132e705c121SKalle Valo if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { 3133e705c121SKalle Valo u32 duration = 2 * vif->bss_conf.beacon_int; 3134e705c121SKalle Valo 3135e705c121SKalle Valo /* iwl_mvm_protect_session() reads directly from the 3136e705c121SKalle Valo * device (the system time), so make sure it is 3137e705c121SKalle Valo * available. 3138e705c121SKalle Valo */ 3139e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA); 3140e705c121SKalle Valo if (ret) 3141e705c121SKalle Valo goto out_remove_binding; 3142e705c121SKalle Valo 3143e705c121SKalle Valo /* Protect the session to make sure we hear the first 3144e705c121SKalle Valo * beacon on the new channel. 3145e705c121SKalle Valo */ 3146e705c121SKalle Valo iwl_mvm_protect_session(mvm, vif, duration, duration, 3147e705c121SKalle Valo vif->bss_conf.beacon_int / 2, 3148e705c121SKalle Valo true); 3149e705c121SKalle Valo 3150e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA); 3151e705c121SKalle Valo 3152e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, NULL); 3153e705c121SKalle Valo } 3154e705c121SKalle Valo 3155e705c121SKalle Valo goto out; 3156e705c121SKalle Valo 3157e705c121SKalle Valo out_remove_binding: 3158e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 3159e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 3160e705c121SKalle Valo out: 3161e705c121SKalle Valo if (ret) 3162e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 3163e705c121SKalle Valo return ret; 3164e705c121SKalle Valo } 3165e705c121SKalle Valo static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 3166e705c121SKalle Valo struct ieee80211_vif *vif, 3167e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3168e705c121SKalle Valo { 3169e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3170e705c121SKalle Valo int ret; 3171e705c121SKalle Valo 3172e705c121SKalle Valo mutex_lock(&mvm->mutex); 3173e705c121SKalle Valo ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); 3174e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3175e705c121SKalle Valo 3176e705c121SKalle Valo return ret; 3177e705c121SKalle Valo } 3178e705c121SKalle Valo 3179e705c121SKalle Valo static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 3180e705c121SKalle Valo struct ieee80211_vif *vif, 3181e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx, 3182e705c121SKalle Valo bool switching_chanctx) 3183e705c121SKalle Valo { 3184e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3185e705c121SKalle Valo struct ieee80211_vif *disabled_vif = NULL; 3186e705c121SKalle Valo 3187e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3188e705c121SKalle Valo 3189e705c121SKalle Valo iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); 3190e705c121SKalle Valo 3191e705c121SKalle Valo switch (vif->type) { 3192e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 3193e705c121SKalle Valo goto out; 3194e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 3195e705c121SKalle Valo mvmvif->monitor_active = false; 3196e705c121SKalle Valo mvmvif->ps_disabled = false; 3197e705c121SKalle Valo break; 3198e705c121SKalle Valo case NL80211_IFTYPE_AP: 3199e705c121SKalle Valo /* This part is triggered only during CSA */ 3200e705c121SKalle Valo if (!switching_chanctx || !mvmvif->ap_ibss_active) 3201e705c121SKalle Valo goto out; 3202e705c121SKalle Valo 3203e705c121SKalle Valo mvmvif->csa_countdown = false; 3204e705c121SKalle Valo 3205e705c121SKalle Valo /* Set CS bit on all the stations */ 3206e705c121SKalle Valo iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 3207e705c121SKalle Valo 3208e705c121SKalle Valo /* Save blocked iface, the timeout is set on the next beacon */ 3209e705c121SKalle Valo rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 3210e705c121SKalle Valo 3211e705c121SKalle Valo mvmvif->ap_ibss_active = false; 3212e705c121SKalle Valo break; 3213e705c121SKalle Valo case NL80211_IFTYPE_STATION: 3214e705c121SKalle Valo if (!switching_chanctx) 3215e705c121SKalle Valo break; 3216e705c121SKalle Valo 3217e705c121SKalle Valo disabled_vif = vif; 3218e705c121SKalle Valo 3219e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 3220e705c121SKalle Valo break; 3221e705c121SKalle Valo default: 3222e705c121SKalle Valo break; 3223e705c121SKalle Valo } 3224e705c121SKalle Valo 3225e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, disabled_vif); 3226e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 3227e705c121SKalle Valo 3228e705c121SKalle Valo out: 3229e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 3230e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 3231e705c121SKalle Valo } 3232e705c121SKalle Valo 3233e705c121SKalle Valo static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 3234e705c121SKalle Valo struct ieee80211_vif *vif, 3235e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3236e705c121SKalle Valo { 3237e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3238e705c121SKalle Valo 3239e705c121SKalle Valo mutex_lock(&mvm->mutex); 3240e705c121SKalle Valo __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); 3241e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3242e705c121SKalle Valo } 3243e705c121SKalle Valo 3244e705c121SKalle Valo static int 3245e705c121SKalle Valo iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 3246e705c121SKalle Valo struct ieee80211_vif_chanctx_switch *vifs) 3247e705c121SKalle Valo { 3248e705c121SKalle Valo int ret; 3249e705c121SKalle Valo 3250e705c121SKalle Valo mutex_lock(&mvm->mutex); 3251e705c121SKalle Valo __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 3252e705c121SKalle Valo __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 3253e705c121SKalle Valo 3254e705c121SKalle Valo ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 3255e705c121SKalle Valo if (ret) { 3256e705c121SKalle Valo IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 3257e705c121SKalle Valo goto out_reassign; 3258e705c121SKalle Valo } 3259e705c121SKalle Valo 3260e705c121SKalle Valo ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 3261e705c121SKalle Valo true); 3262e705c121SKalle Valo if (ret) { 3263e705c121SKalle Valo IWL_ERR(mvm, 3264e705c121SKalle Valo "failed to assign new_ctx during channel switch\n"); 3265e705c121SKalle Valo goto out_remove; 3266e705c121SKalle Valo } 3267e705c121SKalle Valo 3268e705c121SKalle Valo /* we don't support TDLS during DCM - can be caused by channel switch */ 3269e705c121SKalle Valo if (iwl_mvm_phy_ctx_count(mvm) > 1) 3270e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 3271e705c121SKalle Valo 3272e705c121SKalle Valo goto out; 3273e705c121SKalle Valo 3274e705c121SKalle Valo out_remove: 3275e705c121SKalle Valo __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 3276e705c121SKalle Valo 3277e705c121SKalle Valo out_reassign: 3278e705c121SKalle Valo if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 3279e705c121SKalle Valo IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 3280e705c121SKalle Valo goto out_restart; 3281e705c121SKalle Valo } 3282e705c121SKalle Valo 3283e705c121SKalle Valo if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 3284e705c121SKalle Valo true)) { 3285e705c121SKalle Valo IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 3286e705c121SKalle Valo goto out_restart; 3287e705c121SKalle Valo } 3288e705c121SKalle Valo 3289e705c121SKalle Valo goto out; 3290e705c121SKalle Valo 3291e705c121SKalle Valo out_restart: 3292e705c121SKalle Valo /* things keep failing, better restart the hw */ 3293e705c121SKalle Valo iwl_mvm_nic_restart(mvm, false); 3294e705c121SKalle Valo 3295e705c121SKalle Valo out: 3296e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3297e705c121SKalle Valo 3298e705c121SKalle Valo return ret; 3299e705c121SKalle Valo } 3300e705c121SKalle Valo 3301e705c121SKalle Valo static int 3302e705c121SKalle Valo iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 3303e705c121SKalle Valo struct ieee80211_vif_chanctx_switch *vifs) 3304e705c121SKalle Valo { 3305e705c121SKalle Valo int ret; 3306e705c121SKalle Valo 3307e705c121SKalle Valo mutex_lock(&mvm->mutex); 3308e705c121SKalle Valo __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 3309e705c121SKalle Valo 3310e705c121SKalle Valo ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 3311e705c121SKalle Valo true); 3312e705c121SKalle Valo if (ret) { 3313e705c121SKalle Valo IWL_ERR(mvm, 3314e705c121SKalle Valo "failed to assign new_ctx during channel switch\n"); 3315e705c121SKalle Valo goto out_reassign; 3316e705c121SKalle Valo } 3317e705c121SKalle Valo 3318e705c121SKalle Valo goto out; 3319e705c121SKalle Valo 3320e705c121SKalle Valo out_reassign: 3321e705c121SKalle Valo if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 3322e705c121SKalle Valo true)) { 3323e705c121SKalle Valo IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 3324e705c121SKalle Valo goto out_restart; 3325e705c121SKalle Valo } 3326e705c121SKalle Valo 3327e705c121SKalle Valo goto out; 3328e705c121SKalle Valo 3329e705c121SKalle Valo out_restart: 3330e705c121SKalle Valo /* things keep failing, better restart the hw */ 3331e705c121SKalle Valo iwl_mvm_nic_restart(mvm, false); 3332e705c121SKalle Valo 3333e705c121SKalle Valo out: 3334e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3335e705c121SKalle Valo 3336e705c121SKalle Valo return ret; 3337e705c121SKalle Valo } 3338e705c121SKalle Valo 3339e705c121SKalle Valo static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 3340e705c121SKalle Valo struct ieee80211_vif_chanctx_switch *vifs, 3341e705c121SKalle Valo int n_vifs, 3342e705c121SKalle Valo enum ieee80211_chanctx_switch_mode mode) 3343e705c121SKalle Valo { 3344e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3345e705c121SKalle Valo int ret; 3346e705c121SKalle Valo 3347e705c121SKalle Valo /* we only support a single-vif right now */ 3348e705c121SKalle Valo if (n_vifs > 1) 3349e705c121SKalle Valo return -EOPNOTSUPP; 3350e705c121SKalle Valo 3351e705c121SKalle Valo switch (mode) { 3352e705c121SKalle Valo case CHANCTX_SWMODE_SWAP_CONTEXTS: 3353e705c121SKalle Valo ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); 3354e705c121SKalle Valo break; 3355e705c121SKalle Valo case CHANCTX_SWMODE_REASSIGN_VIF: 3356e705c121SKalle Valo ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); 3357e705c121SKalle Valo break; 3358e705c121SKalle Valo default: 3359e705c121SKalle Valo ret = -EOPNOTSUPP; 3360e705c121SKalle Valo break; 3361e705c121SKalle Valo } 3362e705c121SKalle Valo 3363e705c121SKalle Valo return ret; 3364e705c121SKalle Valo } 3365e705c121SKalle Valo 3366e705c121SKalle Valo static int iwl_mvm_set_tim(struct ieee80211_hw *hw, 3367e705c121SKalle Valo struct ieee80211_sta *sta, 3368e705c121SKalle Valo bool set) 3369e705c121SKalle Valo { 3370e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3371e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3372e705c121SKalle Valo 3373e705c121SKalle Valo if (!mvm_sta || !mvm_sta->vif) { 3374e705c121SKalle Valo IWL_ERR(mvm, "Station is not associated to a vif\n"); 3375e705c121SKalle Valo return -EINVAL; 3376e705c121SKalle Valo } 3377e705c121SKalle Valo 3378e705c121SKalle Valo return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); 3379e705c121SKalle Valo } 3380e705c121SKalle Valo 3381e705c121SKalle Valo #ifdef CONFIG_NL80211_TESTMODE 3382e705c121SKalle Valo static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 3383e705c121SKalle Valo [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 3384e705c121SKalle Valo [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 3385e705c121SKalle Valo [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 3386e705c121SKalle Valo }; 3387e705c121SKalle Valo 3388e705c121SKalle Valo static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 3389e705c121SKalle Valo struct ieee80211_vif *vif, 3390e705c121SKalle Valo void *data, int len) 3391e705c121SKalle Valo { 3392e705c121SKalle Valo struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 3393e705c121SKalle Valo int err; 3394e705c121SKalle Valo u32 noa_duration; 3395e705c121SKalle Valo 3396e705c121SKalle Valo err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy); 3397e705c121SKalle Valo if (err) 3398e705c121SKalle Valo return err; 3399e705c121SKalle Valo 3400e705c121SKalle Valo if (!tb[IWL_MVM_TM_ATTR_CMD]) 3401e705c121SKalle Valo return -EINVAL; 3402e705c121SKalle Valo 3403e705c121SKalle Valo switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 3404e705c121SKalle Valo case IWL_MVM_TM_CMD_SET_NOA: 3405e705c121SKalle Valo if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 3406e705c121SKalle Valo !vif->bss_conf.enable_beacon || 3407e705c121SKalle Valo !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 3408e705c121SKalle Valo return -EINVAL; 3409e705c121SKalle Valo 3410e705c121SKalle Valo noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 3411e705c121SKalle Valo if (noa_duration >= vif->bss_conf.beacon_int) 3412e705c121SKalle Valo return -EINVAL; 3413e705c121SKalle Valo 3414e705c121SKalle Valo mvm->noa_duration = noa_duration; 3415e705c121SKalle Valo mvm->noa_vif = vif; 3416e705c121SKalle Valo 3417e705c121SKalle Valo return iwl_mvm_update_quotas(mvm, false, NULL); 3418e705c121SKalle Valo case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 3419e705c121SKalle Valo /* must be associated client vif - ignore authorized */ 3420e705c121SKalle Valo if (!vif || vif->type != NL80211_IFTYPE_STATION || 3421e705c121SKalle Valo !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || 3422e705c121SKalle Valo !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 3423e705c121SKalle Valo return -EINVAL; 3424e705c121SKalle Valo 3425e705c121SKalle Valo if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 3426e705c121SKalle Valo return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 3427e705c121SKalle Valo return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3428e705c121SKalle Valo } 3429e705c121SKalle Valo 3430e705c121SKalle Valo return -EOPNOTSUPP; 3431e705c121SKalle Valo } 3432e705c121SKalle Valo 3433e705c121SKalle Valo static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 3434e705c121SKalle Valo struct ieee80211_vif *vif, 3435e705c121SKalle Valo void *data, int len) 3436e705c121SKalle Valo { 3437e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3438e705c121SKalle Valo int err; 3439e705c121SKalle Valo 3440e705c121SKalle Valo mutex_lock(&mvm->mutex); 3441e705c121SKalle Valo err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 3442e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3443e705c121SKalle Valo 3444e705c121SKalle Valo return err; 3445e705c121SKalle Valo } 3446e705c121SKalle Valo #endif 3447e705c121SKalle Valo 3448e705c121SKalle Valo static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, 3449e705c121SKalle Valo struct ieee80211_vif *vif, 3450e705c121SKalle Valo struct ieee80211_channel_switch *chsw) 3451e705c121SKalle Valo { 3452e705c121SKalle Valo /* By implementing this operation, we prevent mac80211 from 3453e705c121SKalle Valo * starting its own channel switch timer, so that we can call 3454e705c121SKalle Valo * ieee80211_chswitch_done() ourselves at the right time 3455e705c121SKalle Valo * (which is when the absence time event starts). 3456e705c121SKalle Valo */ 3457e705c121SKalle Valo 3458e705c121SKalle Valo IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 3459e705c121SKalle Valo "dummy channel switch op\n"); 3460e705c121SKalle Valo } 3461e705c121SKalle Valo 3462e705c121SKalle Valo static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 3463e705c121SKalle Valo struct ieee80211_vif *vif, 3464e705c121SKalle Valo struct ieee80211_channel_switch *chsw) 3465e705c121SKalle Valo { 3466e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3467e705c121SKalle Valo struct ieee80211_vif *csa_vif; 3468e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3469e705c121SKalle Valo u32 apply_time; 3470e705c121SKalle Valo int ret; 3471e705c121SKalle Valo 3472e705c121SKalle Valo mutex_lock(&mvm->mutex); 3473e705c121SKalle Valo 3474e705c121SKalle Valo mvmvif->csa_failed = false; 3475e705c121SKalle Valo 3476e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 3477e705c121SKalle Valo chsw->chandef.center_freq1); 3478e705c121SKalle Valo 3479e705c121SKalle Valo iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH); 3480e705c121SKalle Valo 3481e705c121SKalle Valo switch (vif->type) { 3482e705c121SKalle Valo case NL80211_IFTYPE_AP: 3483e705c121SKalle Valo csa_vif = 3484e705c121SKalle Valo rcu_dereference_protected(mvm->csa_vif, 3485e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3486e705c121SKalle Valo if (WARN_ONCE(csa_vif && csa_vif->csa_active, 3487e705c121SKalle Valo "Another CSA is already in progress")) { 3488e705c121SKalle Valo ret = -EBUSY; 3489e705c121SKalle Valo goto out_unlock; 3490e705c121SKalle Valo } 3491e705c121SKalle Valo 3492e705c121SKalle Valo rcu_assign_pointer(mvm->csa_vif, vif); 3493e705c121SKalle Valo 3494e705c121SKalle Valo if (WARN_ONCE(mvmvif->csa_countdown, 3495e705c121SKalle Valo "Previous CSA countdown didn't complete")) { 3496e705c121SKalle Valo ret = -EBUSY; 3497e705c121SKalle Valo goto out_unlock; 3498e705c121SKalle Valo } 3499e705c121SKalle Valo 3500e705c121SKalle Valo break; 3501e705c121SKalle Valo case NL80211_IFTYPE_STATION: 3502e705c121SKalle Valo /* Schedule the time event to a bit before beacon 1, 3503e705c121SKalle Valo * to make sure we're in the new channel when the 3504e705c121SKalle Valo * GO/AP arrives. 3505e705c121SKalle Valo */ 3506e705c121SKalle Valo apply_time = chsw->device_timestamp + 3507e705c121SKalle Valo ((vif->bss_conf.beacon_int * (chsw->count - 1) - 3508e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 3509e705c121SKalle Valo 3510e705c121SKalle Valo if (chsw->block_tx) 3511e705c121SKalle Valo iwl_mvm_csa_client_absent(mvm, vif); 3512e705c121SKalle Valo 3513e705c121SKalle Valo iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 3514e705c121SKalle Valo apply_time); 3515e705c121SKalle Valo if (mvmvif->bf_data.bf_enabled) { 3516e705c121SKalle Valo ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3517e705c121SKalle Valo if (ret) 3518e705c121SKalle Valo goto out_unlock; 3519e705c121SKalle Valo } 3520e705c121SKalle Valo 3521e705c121SKalle Valo break; 3522e705c121SKalle Valo default: 3523e705c121SKalle Valo break; 3524e705c121SKalle Valo } 3525e705c121SKalle Valo 3526e705c121SKalle Valo mvmvif->ps_disabled = true; 3527e705c121SKalle Valo 3528e705c121SKalle Valo ret = iwl_mvm_power_update_ps(mvm); 3529e705c121SKalle Valo if (ret) 3530e705c121SKalle Valo goto out_unlock; 3531e705c121SKalle Valo 3532e705c121SKalle Valo /* we won't be on this channel any longer */ 3533e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 3534e705c121SKalle Valo 3535e705c121SKalle Valo out_unlock: 3536e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3537e705c121SKalle Valo 3538e705c121SKalle Valo return ret; 3539e705c121SKalle Valo } 3540e705c121SKalle Valo 3541e705c121SKalle Valo static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 3542e705c121SKalle Valo struct ieee80211_vif *vif) 3543e705c121SKalle Valo { 3544e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3545e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3546e705c121SKalle Valo int ret; 3547e705c121SKalle Valo 3548e705c121SKalle Valo mutex_lock(&mvm->mutex); 3549e705c121SKalle Valo 3550e705c121SKalle Valo if (mvmvif->csa_failed) { 3551e705c121SKalle Valo mvmvif->csa_failed = false; 3552e705c121SKalle Valo ret = -EIO; 3553e705c121SKalle Valo goto out_unlock; 3554e705c121SKalle Valo } 3555e705c121SKalle Valo 3556e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) { 3557e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 3558e705c121SKalle Valo 3559e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 3560e705c121SKalle Valo mvmvif->ap_sta_id); 3561e705c121SKalle Valo 3562e705c121SKalle Valo if (WARN_ON(!mvmsta)) { 3563e705c121SKalle Valo ret = -EIO; 3564e705c121SKalle Valo goto out_unlock; 3565e705c121SKalle Valo } 3566e705c121SKalle Valo 3567e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 3568e705c121SKalle Valo 3569e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3570e705c121SKalle Valo 3571e705c121SKalle Valo ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 3572e705c121SKalle Valo if (ret) 3573e705c121SKalle Valo goto out_unlock; 3574e705c121SKalle Valo 3575e705c121SKalle Valo iwl_mvm_stop_session_protection(mvm, vif); 3576e705c121SKalle Valo } 3577e705c121SKalle Valo 3578e705c121SKalle Valo mvmvif->ps_disabled = false; 3579e705c121SKalle Valo 3580e705c121SKalle Valo ret = iwl_mvm_power_update_ps(mvm); 3581e705c121SKalle Valo 3582e705c121SKalle Valo out_unlock: 3583e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3584e705c121SKalle Valo 3585e705c121SKalle Valo return ret; 3586e705c121SKalle Valo } 3587e705c121SKalle Valo 3588e705c121SKalle Valo static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, 3589e705c121SKalle Valo struct ieee80211_vif *vif, u32 queues, bool drop) 3590e705c121SKalle Valo { 3591e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3592e705c121SKalle Valo struct iwl_mvm_vif *mvmvif; 3593e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 3594e705c121SKalle Valo struct ieee80211_sta *sta; 3595e705c121SKalle Valo int i; 3596e705c121SKalle Valo u32 msk = 0; 3597e705c121SKalle Valo 3598e705c121SKalle Valo if (!vif || vif->type != NL80211_IFTYPE_STATION) 3599e705c121SKalle Valo return; 3600e705c121SKalle Valo 3601e705c121SKalle Valo mutex_lock(&mvm->mutex); 3602e705c121SKalle Valo mvmvif = iwl_mvm_vif_from_mac80211(vif); 3603e705c121SKalle Valo 3604e705c121SKalle Valo /* flush the AP-station and all TDLS peers */ 3605e705c121SKalle Valo for (i = 0; i < IWL_MVM_STATION_COUNT; i++) { 3606e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 3607e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3608e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) 3609e705c121SKalle Valo continue; 3610e705c121SKalle Valo 3611e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_mac80211(sta); 3612e705c121SKalle Valo if (mvmsta->vif != vif) 3613e705c121SKalle Valo continue; 3614e705c121SKalle Valo 3615e705c121SKalle Valo /* make sure only TDLS peers or the AP are flushed */ 3616e705c121SKalle Valo WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); 3617e705c121SKalle Valo 3618e705c121SKalle Valo msk |= mvmsta->tfd_queue_msk; 3619e705c121SKalle Valo } 3620e705c121SKalle Valo 3621e705c121SKalle Valo if (drop) { 3622e705c121SKalle Valo if (iwl_mvm_flush_tx_path(mvm, msk, 0)) 3623e705c121SKalle Valo IWL_ERR(mvm, "flush request fail\n"); 3624e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3625e705c121SKalle Valo } else { 3626e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3627e705c121SKalle Valo 3628e705c121SKalle Valo /* this can take a while, and we may need/want other operations 3629e705c121SKalle Valo * to succeed while doing this, so do it without the mutex held 3630e705c121SKalle Valo */ 3631e705c121SKalle Valo iwl_trans_wait_tx_queue_empty(mvm->trans, msk); 3632e705c121SKalle Valo } 3633e705c121SKalle Valo } 3634e705c121SKalle Valo 3635e705c121SKalle Valo static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 3636e705c121SKalle Valo struct survey_info *survey) 3637e705c121SKalle Valo { 3638e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3639e705c121SKalle Valo int ret; 3640e705c121SKalle Valo 3641e705c121SKalle Valo memset(survey, 0, sizeof(*survey)); 3642e705c121SKalle Valo 3643e705c121SKalle Valo /* only support global statistics right now */ 3644e705c121SKalle Valo if (idx != 0) 3645e705c121SKalle Valo return -ENOENT; 3646e705c121SKalle Valo 3647e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 3648e705c121SKalle Valo IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 3649e705c121SKalle Valo return -ENOENT; 3650e705c121SKalle Valo 3651e705c121SKalle Valo mutex_lock(&mvm->mutex); 3652e705c121SKalle Valo 3653e705c121SKalle Valo if (mvm->ucode_loaded) { 3654e705c121SKalle Valo ret = iwl_mvm_request_statistics(mvm, false); 3655e705c121SKalle Valo if (ret) 3656e705c121SKalle Valo goto out; 3657e705c121SKalle Valo } 3658e705c121SKalle Valo 3659e705c121SKalle Valo survey->filled = SURVEY_INFO_TIME | 3660e705c121SKalle Valo SURVEY_INFO_TIME_RX | 3661e705c121SKalle Valo SURVEY_INFO_TIME_TX | 3662e705c121SKalle Valo SURVEY_INFO_TIME_SCAN; 3663e705c121SKalle Valo survey->time = mvm->accu_radio_stats.on_time_rf + 3664e705c121SKalle Valo mvm->radio_stats.on_time_rf; 3665e705c121SKalle Valo do_div(survey->time, USEC_PER_MSEC); 3666e705c121SKalle Valo 3667e705c121SKalle Valo survey->time_rx = mvm->accu_radio_stats.rx_time + 3668e705c121SKalle Valo mvm->radio_stats.rx_time; 3669e705c121SKalle Valo do_div(survey->time_rx, USEC_PER_MSEC); 3670e705c121SKalle Valo 3671e705c121SKalle Valo survey->time_tx = mvm->accu_radio_stats.tx_time + 3672e705c121SKalle Valo mvm->radio_stats.tx_time; 3673e705c121SKalle Valo do_div(survey->time_tx, USEC_PER_MSEC); 3674e705c121SKalle Valo 3675e705c121SKalle Valo survey->time_scan = mvm->accu_radio_stats.on_time_scan + 3676e705c121SKalle Valo mvm->radio_stats.on_time_scan; 3677e705c121SKalle Valo do_div(survey->time_scan, USEC_PER_MSEC); 3678e705c121SKalle Valo 3679e705c121SKalle Valo ret = 0; 3680e705c121SKalle Valo out: 3681e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3682e705c121SKalle Valo return ret; 3683e705c121SKalle Valo } 3684e705c121SKalle Valo 3685e705c121SKalle Valo static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 3686e705c121SKalle Valo struct ieee80211_vif *vif, 3687e705c121SKalle Valo struct ieee80211_sta *sta, 3688e705c121SKalle Valo struct station_info *sinfo) 3689e705c121SKalle Valo { 3690e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3691e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3692e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3693e705c121SKalle Valo 3694e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 3695e705c121SKalle Valo IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 3696e705c121SKalle Valo return; 3697e705c121SKalle Valo 3698e705c121SKalle Valo /* if beacon filtering isn't on mac80211 does it anyway */ 3699e705c121SKalle Valo if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 3700e705c121SKalle Valo return; 3701e705c121SKalle Valo 3702e705c121SKalle Valo if (!vif->bss_conf.assoc) 3703e705c121SKalle Valo return; 3704e705c121SKalle Valo 3705e705c121SKalle Valo mutex_lock(&mvm->mutex); 3706e705c121SKalle Valo 3707e705c121SKalle Valo if (mvmvif->ap_sta_id != mvmsta->sta_id) 3708e705c121SKalle Valo goto unlock; 3709e705c121SKalle Valo 3710e705c121SKalle Valo if (iwl_mvm_request_statistics(mvm, false)) 3711e705c121SKalle Valo goto unlock; 3712e705c121SKalle Valo 3713e705c121SKalle Valo sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + 3714e705c121SKalle Valo mvmvif->beacon_stats.accu_num_beacons; 3715e705c121SKalle Valo sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX); 3716e705c121SKalle Valo if (mvmvif->beacon_stats.avg_signal) { 3717e705c121SKalle Valo /* firmware only reports a value after RXing a few beacons */ 3718e705c121SKalle Valo sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; 3719e705c121SKalle Valo sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 3720e705c121SKalle Valo } 3721e705c121SKalle Valo unlock: 3722e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3723e705c121SKalle Valo } 3724e705c121SKalle Valo 3725e705c121SKalle Valo static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 3726e705c121SKalle Valo struct ieee80211_vif *vif, 3727e705c121SKalle Valo const struct ieee80211_event *event) 3728e705c121SKalle Valo { 3729e705c121SKalle Valo #define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \ 3730e705c121SKalle Valo do { \ 3731e705c121SKalle Valo if ((_cnt) && --(_cnt)) \ 3732e705c121SKalle Valo break; \ 3733e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\ 3734e705c121SKalle Valo } while (0) 3735e705c121SKalle Valo 3736e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 3737e705c121SKalle Valo struct iwl_fw_dbg_trigger_mlme *trig_mlme; 3738e705c121SKalle Valo 3739e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME)) 3740e705c121SKalle Valo return; 3741e705c121SKalle Valo 3742e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME); 3743e705c121SKalle Valo trig_mlme = (void *)trig->data; 3744e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 3745e705c121SKalle Valo return; 3746e705c121SKalle Valo 3747e705c121SKalle Valo if (event->u.mlme.data == ASSOC_EVENT) { 3748e705c121SKalle Valo if (event->u.mlme.status == MLME_DENIED) 3749e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3750e705c121SKalle Valo trig_mlme->stop_assoc_denied, 3751e705c121SKalle Valo "DENIED ASSOC: reason %d", 3752e705c121SKalle Valo event->u.mlme.reason); 3753e705c121SKalle Valo else if (event->u.mlme.status == MLME_TIMEOUT) 3754e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3755e705c121SKalle Valo trig_mlme->stop_assoc_timeout, 3756e705c121SKalle Valo "ASSOC TIMEOUT"); 3757e705c121SKalle Valo } else if (event->u.mlme.data == AUTH_EVENT) { 3758e705c121SKalle Valo if (event->u.mlme.status == MLME_DENIED) 3759e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3760e705c121SKalle Valo trig_mlme->stop_auth_denied, 3761e705c121SKalle Valo "DENIED AUTH: reason %d", 3762e705c121SKalle Valo event->u.mlme.reason); 3763e705c121SKalle Valo else if (event->u.mlme.status == MLME_TIMEOUT) 3764e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3765e705c121SKalle Valo trig_mlme->stop_auth_timeout, 3766e705c121SKalle Valo "AUTH TIMEOUT"); 3767e705c121SKalle Valo } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 3768e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3769e705c121SKalle Valo trig_mlme->stop_rx_deauth, 3770e705c121SKalle Valo "DEAUTH RX %d", event->u.mlme.reason); 3771e705c121SKalle Valo } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 3772e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3773e705c121SKalle Valo trig_mlme->stop_tx_deauth, 3774e705c121SKalle Valo "DEAUTH TX %d", event->u.mlme.reason); 3775e705c121SKalle Valo } 3776e705c121SKalle Valo #undef CHECK_MLME_TRIGGER 3777e705c121SKalle Valo } 3778e705c121SKalle Valo 3779e705c121SKalle Valo static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 3780e705c121SKalle Valo struct ieee80211_vif *vif, 3781e705c121SKalle Valo const struct ieee80211_event *event) 3782e705c121SKalle Valo { 3783e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 3784e705c121SKalle Valo struct iwl_fw_dbg_trigger_ba *ba_trig; 3785e705c121SKalle Valo 3786e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) 3787e705c121SKalle Valo return; 3788e705c121SKalle Valo 3789e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); 3790e705c121SKalle Valo ba_trig = (void *)trig->data; 3791e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 3792e705c121SKalle Valo return; 3793e705c121SKalle Valo 3794e705c121SKalle Valo if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 3795e705c121SKalle Valo return; 3796e705c121SKalle Valo 3797e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(mvm, trig, 3798e705c121SKalle Valo "BAR received from %pM, tid %d, ssn %d", 3799e705c121SKalle Valo event->u.ba.sta->addr, event->u.ba.tid, 3800e705c121SKalle Valo event->u.ba.ssn); 3801e705c121SKalle Valo } 3802e705c121SKalle Valo 3803e705c121SKalle Valo static void 3804e705c121SKalle Valo iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm, 3805e705c121SKalle Valo struct ieee80211_vif *vif, 3806e705c121SKalle Valo const struct ieee80211_event *event) 3807e705c121SKalle Valo { 3808e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 3809e705c121SKalle Valo struct iwl_fw_dbg_trigger_ba *ba_trig; 3810e705c121SKalle Valo 3811e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) 3812e705c121SKalle Valo return; 3813e705c121SKalle Valo 3814e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); 3815e705c121SKalle Valo ba_trig = (void *)trig->data; 3816e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 3817e705c121SKalle Valo return; 3818e705c121SKalle Valo 3819e705c121SKalle Valo if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid))) 3820e705c121SKalle Valo return; 3821e705c121SKalle Valo 3822e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(mvm, trig, 3823e705c121SKalle Valo "Frame from %pM timed out, tid %d", 3824e705c121SKalle Valo event->u.ba.sta->addr, event->u.ba.tid); 3825e705c121SKalle Valo } 3826e705c121SKalle Valo 3827e705c121SKalle Valo static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 3828e705c121SKalle Valo struct ieee80211_vif *vif, 3829e705c121SKalle Valo const struct ieee80211_event *event) 3830e705c121SKalle Valo { 3831e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3832e705c121SKalle Valo 3833e705c121SKalle Valo switch (event->type) { 3834e705c121SKalle Valo case MLME_EVENT: 3835e705c121SKalle Valo iwl_mvm_event_mlme_callback(mvm, vif, event); 3836e705c121SKalle Valo break; 3837e705c121SKalle Valo case BAR_RX_EVENT: 3838e705c121SKalle Valo iwl_mvm_event_bar_rx_callback(mvm, vif, event); 3839e705c121SKalle Valo break; 3840e705c121SKalle Valo case BA_FRAME_TIMEOUT: 3841e705c121SKalle Valo iwl_mvm_event_frame_timeout_callback(mvm, vif, event); 3842e705c121SKalle Valo break; 3843e705c121SKalle Valo default: 3844e705c121SKalle Valo break; 3845e705c121SKalle Valo } 3846e705c121SKalle Valo } 3847e705c121SKalle Valo 3848e705c121SKalle Valo const struct ieee80211_ops iwl_mvm_hw_ops = { 3849e705c121SKalle Valo .tx = iwl_mvm_mac_tx, 3850e705c121SKalle Valo .ampdu_action = iwl_mvm_mac_ampdu_action, 3851e705c121SKalle Valo .start = iwl_mvm_mac_start, 3852e705c121SKalle Valo .reconfig_complete = iwl_mvm_mac_reconfig_complete, 3853e705c121SKalle Valo .stop = iwl_mvm_mac_stop, 3854e705c121SKalle Valo .add_interface = iwl_mvm_mac_add_interface, 3855e705c121SKalle Valo .remove_interface = iwl_mvm_mac_remove_interface, 3856e705c121SKalle Valo .config = iwl_mvm_mac_config, 3857e705c121SKalle Valo .prepare_multicast = iwl_mvm_prepare_multicast, 3858e705c121SKalle Valo .configure_filter = iwl_mvm_configure_filter, 3859e705c121SKalle Valo .config_iface_filter = iwl_mvm_config_iface_filter, 3860e705c121SKalle Valo .bss_info_changed = iwl_mvm_bss_info_changed, 3861e705c121SKalle Valo .hw_scan = iwl_mvm_mac_hw_scan, 3862e705c121SKalle Valo .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 3863e705c121SKalle Valo .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 3864e705c121SKalle Valo .sta_state = iwl_mvm_mac_sta_state, 3865e705c121SKalle Valo .sta_notify = iwl_mvm_mac_sta_notify, 3866e705c121SKalle Valo .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 3867e705c121SKalle Valo .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 3868e705c121SKalle Valo .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 3869e705c121SKalle Valo .sta_rc_update = iwl_mvm_sta_rc_update, 3870e705c121SKalle Valo .conf_tx = iwl_mvm_mac_conf_tx, 3871e705c121SKalle Valo .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 3872e705c121SKalle Valo .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 3873e705c121SKalle Valo .flush = iwl_mvm_mac_flush, 3874e705c121SKalle Valo .sched_scan_start = iwl_mvm_mac_sched_scan_start, 3875e705c121SKalle Valo .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 3876e705c121SKalle Valo .set_key = iwl_mvm_mac_set_key, 3877e705c121SKalle Valo .update_tkip_key = iwl_mvm_mac_update_tkip_key, 3878e705c121SKalle Valo .remain_on_channel = iwl_mvm_roc, 3879e705c121SKalle Valo .cancel_remain_on_channel = iwl_mvm_cancel_roc, 3880e705c121SKalle Valo .add_chanctx = iwl_mvm_add_chanctx, 3881e705c121SKalle Valo .remove_chanctx = iwl_mvm_remove_chanctx, 3882e705c121SKalle Valo .change_chanctx = iwl_mvm_change_chanctx, 3883e705c121SKalle Valo .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 3884e705c121SKalle Valo .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 3885e705c121SKalle Valo .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 3886e705c121SKalle Valo 3887e705c121SKalle Valo .start_ap = iwl_mvm_start_ap_ibss, 3888e705c121SKalle Valo .stop_ap = iwl_mvm_stop_ap_ibss, 3889e705c121SKalle Valo .join_ibss = iwl_mvm_start_ap_ibss, 3890e705c121SKalle Valo .leave_ibss = iwl_mvm_stop_ap_ibss, 3891e705c121SKalle Valo 3892e705c121SKalle Valo .set_tim = iwl_mvm_set_tim, 3893e705c121SKalle Valo 3894e705c121SKalle Valo .channel_switch = iwl_mvm_channel_switch, 3895e705c121SKalle Valo .pre_channel_switch = iwl_mvm_pre_channel_switch, 3896e705c121SKalle Valo .post_channel_switch = iwl_mvm_post_channel_switch, 3897e705c121SKalle Valo 3898e705c121SKalle Valo .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 3899e705c121SKalle Valo .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 3900e705c121SKalle Valo .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 3901e705c121SKalle Valo 3902e705c121SKalle Valo .event_callback = iwl_mvm_mac_event_callback, 3903e705c121SKalle Valo 3904e705c121SKalle Valo CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 3905e705c121SKalle Valo 3906e705c121SKalle Valo #ifdef CONFIG_PM_SLEEP 3907e705c121SKalle Valo /* look at d3.c */ 3908e705c121SKalle Valo .suspend = iwl_mvm_suspend, 3909e705c121SKalle Valo .resume = iwl_mvm_resume, 3910e705c121SKalle Valo .set_wakeup = iwl_mvm_set_wakeup, 3911e705c121SKalle Valo .set_rekey_data = iwl_mvm_set_rekey_data, 3912e705c121SKalle Valo #if IS_ENABLED(CONFIG_IPV6) 3913e705c121SKalle Valo .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 3914e705c121SKalle Valo #endif 3915e705c121SKalle Valo .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 3916e705c121SKalle Valo #endif 3917e705c121SKalle Valo .get_survey = iwl_mvm_mac_get_survey, 3918e705c121SKalle Valo .sta_statistics = iwl_mvm_mac_sta_statistics, 3919e705c121SKalle Valo }; 3920