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 442e705c121SKalle Valo hw->queues = mvm->first_agg_queue; 443e705c121SKalle Valo hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 444e705c121SKalle Valo hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 445e705c121SKalle Valo IEEE80211_RADIOTAP_MCS_HAVE_STBC; 446e705c121SKalle Valo hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 447e705c121SKalle Valo IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 448e705c121SKalle Valo hw->rate_control_algorithm = "iwl-mvm-rs"; 449e705c121SKalle Valo hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 450e705c121SKalle Valo hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 451e705c121SKalle Valo 452e705c121SKalle Valo BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 2); 453e705c121SKalle Valo memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 454e705c121SKalle Valo hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 455e705c121SKalle Valo hw->wiphy->cipher_suites = mvm->ciphers; 456e705c121SKalle Valo 457e705c121SKalle Valo /* 458e705c121SKalle Valo * Enable 11w if advertised by firmware and software crypto 459e705c121SKalle Valo * is not enabled (as the firmware will interpret some mgmt 460e705c121SKalle Valo * packets, so enabling it with software crypto isn't safe) 461e705c121SKalle Valo */ 462e705c121SKalle Valo if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && 463e705c121SKalle Valo !iwlwifi_mod_params.sw_crypto) { 464e705c121SKalle Valo ieee80211_hw_set(hw, MFP_CAPABLE); 465e705c121SKalle Valo mvm->ciphers[hw->wiphy->n_cipher_suites] = 466e705c121SKalle Valo WLAN_CIPHER_SUITE_AES_CMAC; 467e705c121SKalle Valo hw->wiphy->n_cipher_suites++; 468e705c121SKalle Valo } 469e705c121SKalle Valo 470e705c121SKalle Valo /* currently FW API supports only one optional cipher scheme */ 471e705c121SKalle Valo if (mvm->fw->cs[0].cipher) { 472e705c121SKalle Valo mvm->hw->n_cipher_schemes = 1; 473e705c121SKalle Valo mvm->hw->cipher_schemes = &mvm->fw->cs[0]; 474e705c121SKalle Valo mvm->ciphers[hw->wiphy->n_cipher_suites] = 475e705c121SKalle Valo mvm->fw->cs[0].cipher; 476e705c121SKalle Valo hw->wiphy->n_cipher_suites++; 477e705c121SKalle Valo } 478e705c121SKalle Valo 479e705c121SKalle Valo ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 480e705c121SKalle Valo hw->wiphy->features |= 481e705c121SKalle Valo NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 482e705c121SKalle Valo NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 483e705c121SKalle Valo NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 484e705c121SKalle Valo 485e705c121SKalle Valo hw->sta_data_size = sizeof(struct iwl_mvm_sta); 486e705c121SKalle Valo hw->vif_data_size = sizeof(struct iwl_mvm_vif); 487e705c121SKalle Valo hw->chanctx_data_size = sizeof(u16); 488e705c121SKalle Valo 489e705c121SKalle Valo hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 490e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_CLIENT) | 491e705c121SKalle Valo BIT(NL80211_IFTYPE_AP) | 492e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_GO) | 493e705c121SKalle Valo BIT(NL80211_IFTYPE_P2P_DEVICE) | 494e705c121SKalle Valo BIT(NL80211_IFTYPE_ADHOC); 495e705c121SKalle Valo 496e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 497e705c121SKalle Valo hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 498e705c121SKalle Valo if (iwl_mvm_is_lar_supported(mvm)) 499e705c121SKalle Valo hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 500e705c121SKalle Valo else 501e705c121SKalle Valo hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 502e705c121SKalle Valo REGULATORY_DISABLE_BEACON_HINTS; 503e705c121SKalle Valo 504e705c121SKalle Valo if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD) 505e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 506e705c121SKalle Valo 507e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 508e705c121SKalle Valo 509e705c121SKalle Valo hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 510e705c121SKalle Valo hw->wiphy->n_iface_combinations = 511e705c121SKalle Valo ARRAY_SIZE(iwl_mvm_iface_combinations); 512e705c121SKalle Valo 513e705c121SKalle Valo hw->wiphy->max_remain_on_channel_duration = 10000; 514e705c121SKalle Valo hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 515e705c121SKalle Valo /* we can compensate an offset of up to 3 channels = 15 MHz */ 516e705c121SKalle Valo hw->wiphy->max_adj_channel_rssi_comp = 3 * 5; 517e705c121SKalle Valo 518e705c121SKalle Valo /* Extract MAC address */ 519e705c121SKalle Valo memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 520e705c121SKalle Valo hw->wiphy->addresses = mvm->addresses; 521e705c121SKalle Valo hw->wiphy->n_addresses = 1; 522e705c121SKalle Valo 523e705c121SKalle Valo /* Extract additional MAC addresses if available */ 524e705c121SKalle Valo num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 525e705c121SKalle Valo min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 526e705c121SKalle Valo 527e705c121SKalle Valo for (i = 1; i < num_mac; i++) { 528e705c121SKalle Valo memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 529e705c121SKalle Valo ETH_ALEN); 530e705c121SKalle Valo mvm->addresses[i].addr[5]++; 531e705c121SKalle Valo hw->wiphy->n_addresses++; 532e705c121SKalle Valo } 533e705c121SKalle Valo 534e705c121SKalle Valo iwl_mvm_reset_phy_ctxts(mvm); 535e705c121SKalle Valo 536e705c121SKalle Valo hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 537e705c121SKalle Valo 538e705c121SKalle Valo hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 539e705c121SKalle Valo 540e705c121SKalle Valo BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 541e705c121SKalle Valo BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 542e705c121SKalle Valo IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 543e705c121SKalle Valo 544e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 545e705c121SKalle Valo mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 546e705c121SKalle Valo else 547e705c121SKalle Valo mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 548e705c121SKalle Valo 549e705c121SKalle Valo if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) 550e705c121SKalle Valo hw->wiphy->bands[IEEE80211_BAND_2GHZ] = 551e705c121SKalle Valo &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ]; 552e705c121SKalle Valo if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) { 553e705c121SKalle Valo hw->wiphy->bands[IEEE80211_BAND_5GHZ] = 554e705c121SKalle Valo &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ]; 555e705c121SKalle Valo 556e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 557e705c121SKalle Valo IWL_UCODE_TLV_CAPA_BEAMFORMER) && 558e705c121SKalle Valo fw_has_api(&mvm->fw->ucode_capa, 559e705c121SKalle Valo IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 560e705c121SKalle Valo hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |= 561e705c121SKalle Valo IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 562e705c121SKalle Valo } 563e705c121SKalle Valo 564e705c121SKalle Valo hw->wiphy->hw_version = mvm->trans->hw_id; 565e705c121SKalle Valo 566e705c121SKalle Valo if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 567e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 568e705c121SKalle Valo else 569e705c121SKalle Valo hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 570e705c121SKalle Valo 571e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; 572e705c121SKalle Valo hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 573e705c121SKalle Valo hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; 574e705c121SKalle Valo /* we create the 802.11 header and zero length SSID IE. */ 575e705c121SKalle Valo hw->wiphy->max_sched_scan_ie_len = 576e705c121SKalle Valo SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 577e705c121SKalle Valo hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 578e705c121SKalle Valo hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 579e705c121SKalle Valo 580e705c121SKalle Valo /* 581e705c121SKalle Valo * the firmware uses u8 for num of iterations, but 0xff is saved for 582e705c121SKalle Valo * infinite loop, so the maximum number of iterations is actually 254. 583e705c121SKalle Valo */ 584e705c121SKalle Valo hw->wiphy->max_sched_scan_plan_iterations = 254; 585e705c121SKalle Valo 586e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 587e705c121SKalle Valo NL80211_FEATURE_LOW_PRIORITY_SCAN | 588e705c121SKalle Valo NL80211_FEATURE_P2P_GO_OPPPS | 589e705c121SKalle Valo NL80211_FEATURE_DYNAMIC_SMPS | 590e705c121SKalle Valo NL80211_FEATURE_STATIC_SMPS | 591e705c121SKalle Valo NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 592e705c121SKalle Valo 593e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 594e705c121SKalle Valo IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 595e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 596e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 597e705c121SKalle Valo IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 598e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_QUIET; 599e705c121SKalle Valo 600e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 601e705c121SKalle Valo IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 602e705c121SKalle Valo hw->wiphy->features |= 603e705c121SKalle Valo NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 604e705c121SKalle Valo 605e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 606e705c121SKalle Valo IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 607e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 608e705c121SKalle Valo 609e705c121SKalle Valo mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 610e705c121SKalle Valo 611e705c121SKalle Valo #ifdef CONFIG_PM_SLEEP 612e705c121SKalle Valo if (iwl_mvm_is_d0i3_supported(mvm) && 613e705c121SKalle Valo device_can_wakeup(mvm->trans->dev)) { 614e705c121SKalle Valo mvm->wowlan.flags = WIPHY_WOWLAN_ANY; 615e705c121SKalle Valo hw->wiphy->wowlan = &mvm->wowlan; 616e705c121SKalle Valo } 617e705c121SKalle Valo 618e705c121SKalle Valo if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && 619e705c121SKalle Valo mvm->trans->ops->d3_suspend && 620e705c121SKalle Valo mvm->trans->ops->d3_resume && 621e705c121SKalle Valo device_can_wakeup(mvm->trans->dev)) { 622e705c121SKalle Valo mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 623e705c121SKalle Valo WIPHY_WOWLAN_DISCONNECT | 624e705c121SKalle Valo WIPHY_WOWLAN_EAP_IDENTITY_REQ | 625e705c121SKalle Valo WIPHY_WOWLAN_RFKILL_RELEASE | 626e705c121SKalle Valo WIPHY_WOWLAN_NET_DETECT; 627e705c121SKalle Valo if (!iwlwifi_mod_params.sw_crypto) 628e705c121SKalle Valo mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 629e705c121SKalle Valo WIPHY_WOWLAN_GTK_REKEY_FAILURE | 630e705c121SKalle Valo WIPHY_WOWLAN_4WAY_HANDSHAKE; 631e705c121SKalle Valo 632e705c121SKalle Valo mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 633e705c121SKalle Valo mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 634e705c121SKalle Valo mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 635e705c121SKalle Valo mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES; 636e705c121SKalle Valo mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; 637e705c121SKalle Valo hw->wiphy->wowlan = &mvm->wowlan; 638e705c121SKalle Valo } 639e705c121SKalle Valo #endif 640e705c121SKalle Valo 641e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 642e705c121SKalle Valo /* assign default bcast filtering configuration */ 643e705c121SKalle Valo mvm->bcast_filters = iwl_mvm_default_bcast_filters; 644e705c121SKalle Valo #endif 645e705c121SKalle Valo 646e705c121SKalle Valo ret = iwl_mvm_leds_init(mvm); 647e705c121SKalle Valo if (ret) 648e705c121SKalle Valo return ret; 649e705c121SKalle Valo 650e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 651e705c121SKalle Valo IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 652e705c121SKalle Valo IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 653e705c121SKalle Valo hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 654e705c121SKalle Valo ieee80211_hw_set(hw, TDLS_WIDER_BW); 655e705c121SKalle Valo } 656e705c121SKalle Valo 657e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 658e705c121SKalle Valo IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 659e705c121SKalle Valo IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 660e705c121SKalle Valo hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 661e705c121SKalle Valo } 662e705c121SKalle Valo 663e705c121SKalle Valo hw->netdev_features |= mvm->cfg->features; 664e705c121SKalle Valo if (!iwl_mvm_is_csum_supported(mvm)) 665e705c121SKalle Valo hw->netdev_features &= ~NETIF_F_RXCSUM; 666e705c121SKalle Valo 667e705c121SKalle Valo ret = ieee80211_register_hw(mvm->hw); 668e705c121SKalle Valo if (ret) 669e705c121SKalle Valo iwl_mvm_leds_exit(mvm); 670e705c121SKalle Valo 671e705c121SKalle Valo return ret; 672e705c121SKalle Valo } 673e705c121SKalle Valo 674e705c121SKalle Valo static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm, 675e705c121SKalle Valo struct ieee80211_sta *sta, 676e705c121SKalle Valo struct sk_buff *skb) 677e705c121SKalle Valo { 678e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 679e705c121SKalle Valo bool defer = false; 680e705c121SKalle Valo 681e705c121SKalle Valo /* 682e705c121SKalle Valo * double check the IN_D0I3 flag both before and after 683e705c121SKalle Valo * taking the spinlock, in order to prevent taking 684e705c121SKalle Valo * the spinlock when not needed. 685e705c121SKalle Valo */ 686e705c121SKalle Valo if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))) 687e705c121SKalle Valo return false; 688e705c121SKalle Valo 689e705c121SKalle Valo spin_lock(&mvm->d0i3_tx_lock); 690e705c121SKalle Valo /* 691e705c121SKalle Valo * testing the flag again ensures the skb dequeue 692e705c121SKalle Valo * loop (on d0i3 exit) hasn't run yet. 693e705c121SKalle Valo */ 694e705c121SKalle Valo if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) 695e705c121SKalle Valo goto out; 696e705c121SKalle Valo 697e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_mac80211(sta); 698e705c121SKalle Valo if (mvmsta->sta_id == IWL_MVM_STATION_COUNT || 699e705c121SKalle Valo mvmsta->sta_id != mvm->d0i3_ap_sta_id) 700e705c121SKalle Valo goto out; 701e705c121SKalle Valo 702e705c121SKalle Valo __skb_queue_tail(&mvm->d0i3_tx, skb); 703e705c121SKalle Valo ieee80211_stop_queues(mvm->hw); 704e705c121SKalle Valo 705e705c121SKalle Valo /* trigger wakeup */ 706e705c121SKalle Valo iwl_mvm_ref(mvm, IWL_MVM_REF_TX); 707e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_TX); 708e705c121SKalle Valo 709e705c121SKalle Valo defer = true; 710e705c121SKalle Valo out: 711e705c121SKalle Valo spin_unlock(&mvm->d0i3_tx_lock); 712e705c121SKalle Valo return defer; 713e705c121SKalle Valo } 714e705c121SKalle Valo 715e705c121SKalle Valo static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 716e705c121SKalle Valo struct ieee80211_tx_control *control, 717e705c121SKalle Valo struct sk_buff *skb) 718e705c121SKalle Valo { 719e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 720e705c121SKalle Valo struct ieee80211_sta *sta = control->sta; 721e705c121SKalle Valo struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 722e705c121SKalle Valo struct ieee80211_hdr *hdr = (void *)skb->data; 723e705c121SKalle Valo 724e705c121SKalle Valo if (iwl_mvm_is_radio_killed(mvm)) { 725e705c121SKalle Valo IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 726e705c121SKalle Valo goto drop; 727e705c121SKalle Valo } 728e705c121SKalle Valo 729e705c121SKalle Valo if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && 730e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 731e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 732e705c121SKalle Valo goto drop; 733e705c121SKalle Valo 734e705c121SKalle Valo /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */ 735e705c121SKalle Valo if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER && 736e705c121SKalle Valo ieee80211_is_mgmt(hdr->frame_control) && 737e705c121SKalle Valo !ieee80211_is_deauth(hdr->frame_control) && 738e705c121SKalle Valo !ieee80211_is_disassoc(hdr->frame_control) && 739e705c121SKalle Valo !ieee80211_is_action(hdr->frame_control))) 740e705c121SKalle Valo sta = NULL; 741e705c121SKalle Valo 742e705c121SKalle Valo if (sta) { 743e705c121SKalle Valo if (iwl_mvm_defer_tx(mvm, sta, skb)) 744e705c121SKalle Valo return; 745e705c121SKalle Valo if (iwl_mvm_tx_skb(mvm, skb, sta)) 746e705c121SKalle Valo goto drop; 747e705c121SKalle Valo return; 748e705c121SKalle Valo } 749e705c121SKalle Valo 750e705c121SKalle Valo if (iwl_mvm_tx_skb_non_sta(mvm, skb)) 751e705c121SKalle Valo goto drop; 752e705c121SKalle Valo return; 753e705c121SKalle Valo drop: 754e705c121SKalle Valo ieee80211_free_txskb(hw, skb); 755e705c121SKalle Valo } 756e705c121SKalle Valo 757e705c121SKalle Valo static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) 758e705c121SKalle Valo { 759e705c121SKalle Valo if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) 760e705c121SKalle Valo return false; 761e705c121SKalle Valo return true; 762e705c121SKalle Valo } 763e705c121SKalle Valo 764e705c121SKalle Valo static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) 765e705c121SKalle Valo { 766e705c121SKalle Valo if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) 767e705c121SKalle Valo return false; 768e705c121SKalle Valo if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) 769e705c121SKalle Valo return true; 770e705c121SKalle Valo 771e705c121SKalle Valo /* enabled by default */ 772e705c121SKalle Valo return true; 773e705c121SKalle Valo } 774e705c121SKalle Valo 775e705c121SKalle Valo #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 776e705c121SKalle Valo do { \ 777e705c121SKalle Valo if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 778e705c121SKalle Valo break; \ 779e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \ 780e705c121SKalle Valo } while (0) 781e705c121SKalle Valo 782e705c121SKalle Valo static void 783e705c121SKalle Valo iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 784e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 785e705c121SKalle Valo enum ieee80211_ampdu_mlme_action action) 786e705c121SKalle Valo { 787e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 788e705c121SKalle Valo struct iwl_fw_dbg_trigger_ba *ba_trig; 789e705c121SKalle Valo 790e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) 791e705c121SKalle Valo return; 792e705c121SKalle Valo 793e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); 794e705c121SKalle Valo ba_trig = (void *)trig->data; 795e705c121SKalle Valo 796e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 797e705c121SKalle Valo return; 798e705c121SKalle Valo 799e705c121SKalle Valo switch (action) { 800e705c121SKalle Valo case IEEE80211_AMPDU_TX_OPERATIONAL: { 801e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 802e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 803e705c121SKalle Valo 804e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 805e705c121SKalle Valo "TX AGG START: MAC %pM tid %d ssn %d\n", 806e705c121SKalle Valo sta->addr, tid, tid_data->ssn); 807e705c121SKalle Valo break; 808e705c121SKalle Valo } 809e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_CONT: 810e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 811e705c121SKalle Valo "TX AGG STOP: MAC %pM tid %d\n", 812e705c121SKalle Valo sta->addr, tid); 813e705c121SKalle Valo break; 814e705c121SKalle Valo case IEEE80211_AMPDU_RX_START: 815e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 816e705c121SKalle Valo "RX AGG START: MAC %pM tid %d ssn %d\n", 817e705c121SKalle Valo sta->addr, tid, rx_ba_ssn); 818e705c121SKalle Valo break; 819e705c121SKalle Valo case IEEE80211_AMPDU_RX_STOP: 820e705c121SKalle Valo CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 821e705c121SKalle Valo "RX AGG STOP: MAC %pM tid %d\n", 822e705c121SKalle Valo sta->addr, tid); 823e705c121SKalle Valo break; 824e705c121SKalle Valo default: 825e705c121SKalle Valo break; 826e705c121SKalle Valo } 827e705c121SKalle Valo } 828e705c121SKalle Valo 829e705c121SKalle Valo static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 830e705c121SKalle Valo struct ieee80211_vif *vif, 831e705c121SKalle Valo enum ieee80211_ampdu_mlme_action action, 832e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, 833e705c121SKalle Valo u16 *ssn, u8 buf_size, bool amsdu) 834e705c121SKalle Valo { 835e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 836e705c121SKalle Valo int ret; 837e705c121SKalle Valo bool tx_agg_ref = false; 838e705c121SKalle Valo 839e705c121SKalle Valo IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 840e705c121SKalle Valo sta->addr, tid, action); 841e705c121SKalle Valo 842e705c121SKalle Valo if (!(mvm->nvm_data->sku_cap_11n_enable)) 843e705c121SKalle Valo return -EACCES; 844e705c121SKalle Valo 845e705c121SKalle Valo /* return from D0i3 before starting a new Tx aggregation */ 846e705c121SKalle Valo switch (action) { 847e705c121SKalle Valo case IEEE80211_AMPDU_TX_START: 848e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_CONT: 849e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH: 850e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 851e705c121SKalle Valo case IEEE80211_AMPDU_TX_OPERATIONAL: 852e705c121SKalle Valo /* 853e705c121SKalle Valo * for tx start, wait synchronously until D0i3 exit to 854e705c121SKalle Valo * get the correct sequence number for the tid. 855e705c121SKalle Valo * additionally, some other ampdu actions use direct 856e705c121SKalle Valo * target access, which is not handled automatically 857e705c121SKalle Valo * by the trans layer (unlike commands), so wait for 858e705c121SKalle Valo * d0i3 exit in these cases as well. 859e705c121SKalle Valo */ 860e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG); 861e705c121SKalle Valo if (ret) 862e705c121SKalle Valo return ret; 863e705c121SKalle Valo 864e705c121SKalle Valo tx_agg_ref = true; 865e705c121SKalle Valo break; 866e705c121SKalle Valo default: 867e705c121SKalle Valo break; 868e705c121SKalle Valo } 869e705c121SKalle Valo 870e705c121SKalle Valo mutex_lock(&mvm->mutex); 871e705c121SKalle Valo 872e705c121SKalle Valo switch (action) { 873e705c121SKalle Valo case IEEE80211_AMPDU_RX_START: 874e705c121SKalle Valo if (!iwl_enable_rx_ampdu(mvm->cfg)) { 875e705c121SKalle Valo ret = -EINVAL; 876e705c121SKalle Valo break; 877e705c121SKalle Valo } 878e705c121SKalle Valo ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true); 879e705c121SKalle Valo break; 880e705c121SKalle Valo case IEEE80211_AMPDU_RX_STOP: 881e705c121SKalle Valo ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false); 882e705c121SKalle Valo break; 883e705c121SKalle Valo case IEEE80211_AMPDU_TX_START: 884e705c121SKalle Valo if (!iwl_enable_tx_ampdu(mvm->cfg)) { 885e705c121SKalle Valo ret = -EINVAL; 886e705c121SKalle Valo break; 887e705c121SKalle Valo } 888e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 889e705c121SKalle Valo break; 890e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_CONT: 891e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 892e705c121SKalle Valo break; 893e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH: 894e705c121SKalle Valo case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 895e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 896e705c121SKalle Valo break; 897e705c121SKalle Valo case IEEE80211_AMPDU_TX_OPERATIONAL: 898e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size); 899e705c121SKalle Valo break; 900e705c121SKalle Valo default: 901e705c121SKalle Valo WARN_ON_ONCE(1); 902e705c121SKalle Valo ret = -EINVAL; 903e705c121SKalle Valo break; 904e705c121SKalle Valo } 905e705c121SKalle Valo 906e705c121SKalle Valo if (!ret) { 907e705c121SKalle Valo u16 rx_ba_ssn = 0; 908e705c121SKalle Valo 909e705c121SKalle Valo if (action == IEEE80211_AMPDU_RX_START) 910e705c121SKalle Valo rx_ba_ssn = *ssn; 911e705c121SKalle Valo 912e705c121SKalle Valo iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 913e705c121SKalle Valo rx_ba_ssn, action); 914e705c121SKalle Valo } 915e705c121SKalle Valo mutex_unlock(&mvm->mutex); 916e705c121SKalle Valo 917e705c121SKalle Valo /* 918e705c121SKalle Valo * If the tid is marked as started, we won't use it for offloaded 919e705c121SKalle Valo * traffic on the next D0i3 entry. It's safe to unref. 920e705c121SKalle Valo */ 921e705c121SKalle Valo if (tx_agg_ref) 922e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); 923e705c121SKalle Valo 924e705c121SKalle Valo return ret; 925e705c121SKalle Valo } 926e705c121SKalle Valo 927e705c121SKalle Valo static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 928e705c121SKalle Valo struct ieee80211_vif *vif) 929e705c121SKalle Valo { 930e705c121SKalle Valo struct iwl_mvm *mvm = data; 931e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 932e705c121SKalle Valo 933e705c121SKalle Valo mvmvif->uploaded = false; 934e705c121SKalle Valo mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; 935e705c121SKalle Valo 936e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 937e705c121SKalle Valo iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 938e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 939e705c121SKalle Valo 940e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 941e705c121SKalle Valo memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 942e705c121SKalle Valo } 943e705c121SKalle Valo 944e705c121SKalle Valo static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 945e705c121SKalle Valo { 946e705c121SKalle Valo /* clear the D3 reconfig, we only need it to avoid dumping a 947e705c121SKalle Valo * firmware coredump on reconfiguration, we shouldn't do that 948e705c121SKalle Valo * on D3->D0 transition 949e705c121SKalle Valo */ 950e705c121SKalle Valo if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) { 951e705c121SKalle Valo mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert; 952e705c121SKalle Valo iwl_mvm_fw_error_dump(mvm); 953e705c121SKalle Valo } 954e705c121SKalle Valo 955e705c121SKalle Valo /* cleanup all stale references (scan, roc), but keep the 956e705c121SKalle Valo * ucode_down ref until reconfig is complete 957e705c121SKalle Valo */ 958e705c121SKalle Valo iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN); 959e705c121SKalle Valo 960e705c121SKalle Valo iwl_trans_stop_device(mvm->trans); 961e705c121SKalle Valo 962e705c121SKalle Valo mvm->scan_status = 0; 963e705c121SKalle Valo mvm->ps_disabled = false; 964e705c121SKalle Valo mvm->calibrating = false; 965e705c121SKalle Valo 966e705c121SKalle Valo /* just in case one was running */ 967e705c121SKalle Valo ieee80211_remain_on_channel_expired(mvm->hw); 968e705c121SKalle Valo 969e705c121SKalle Valo /* 970e705c121SKalle Valo * cleanup all interfaces, even inactive ones, as some might have 971e705c121SKalle Valo * gone down during the HW restart 972e705c121SKalle Valo */ 973e705c121SKalle Valo ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 974e705c121SKalle Valo 975e705c121SKalle Valo mvm->p2p_device_vif = NULL; 976e705c121SKalle Valo mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; 977e705c121SKalle Valo 978e705c121SKalle Valo iwl_mvm_reset_phy_ctxts(mvm); 979e705c121SKalle Valo memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); 980e705c121SKalle Valo memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained)); 981e705c121SKalle Valo memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 982e705c121SKalle Valo memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old)); 983e705c121SKalle Valo memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 984e705c121SKalle Valo memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old)); 985e705c121SKalle Valo memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk)); 986e705c121SKalle Valo memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk)); 987e705c121SKalle Valo 988e705c121SKalle Valo ieee80211_wake_queues(mvm->hw); 989e705c121SKalle Valo 990e705c121SKalle Valo /* clear any stale d0i3 state */ 991e705c121SKalle Valo clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); 992e705c121SKalle Valo 993e705c121SKalle Valo mvm->vif_count = 0; 994e705c121SKalle Valo mvm->rx_ba_sessions = 0; 995e705c121SKalle Valo mvm->fw_dbg_conf = FW_DBG_INVALID; 996*355346baSAvraham Stern mvm->scan_type = IWL_SCAN_TYPE_NOT_SET; 997e705c121SKalle Valo 998e705c121SKalle Valo /* keep statistics ticking */ 999e705c121SKalle Valo iwl_mvm_accu_radio_stats(mvm); 1000e705c121SKalle Valo } 1001e705c121SKalle Valo 1002e705c121SKalle Valo int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1003e705c121SKalle Valo { 1004e705c121SKalle Valo int ret; 1005e705c121SKalle Valo 1006e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1007e705c121SKalle Valo 1008a42b2af3SLuca Coelho if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1009e705c121SKalle Valo /* Clean up some internal and mac80211 state on restart */ 1010e705c121SKalle Valo iwl_mvm_restart_cleanup(mvm); 1011a42b2af3SLuca Coelho } else { 1012a42b2af3SLuca Coelho /* Hold the reference to prevent runtime suspend while 1013a42b2af3SLuca Coelho * the start procedure runs. It's a bit confusing 1014a42b2af3SLuca Coelho * that the UCODE_DOWN reference is taken, but it just 1015a42b2af3SLuca Coelho * means "UCODE is not UP yet". ( TODO: rename this 1016a42b2af3SLuca Coelho * reference). 1017a42b2af3SLuca Coelho */ 1018a42b2af3SLuca Coelho iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); 1019a42b2af3SLuca Coelho } 1020e705c121SKalle Valo ret = iwl_mvm_up(mvm); 1021e705c121SKalle Valo 1022e705c121SKalle Valo if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1023e705c121SKalle Valo /* Something went wrong - we need to finish some cleanup 1024e705c121SKalle Valo * that normally iwl_mvm_mac_restart_complete() below 1025e705c121SKalle Valo * would do. 1026e705c121SKalle Valo */ 1027e705c121SKalle Valo clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1028e705c121SKalle Valo iwl_mvm_d0i3_enable_tx(mvm, NULL); 1029e705c121SKalle Valo } 1030e705c121SKalle Valo 1031e705c121SKalle Valo return ret; 1032e705c121SKalle Valo } 1033e705c121SKalle Valo 1034e705c121SKalle Valo static int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1035e705c121SKalle Valo { 1036e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1037e705c121SKalle Valo int ret; 1038e705c121SKalle Valo 1039e705c121SKalle Valo /* Some hw restart cleanups must not hold the mutex */ 1040e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1041e705c121SKalle Valo /* 1042e705c121SKalle Valo * Make sure we are out of d0i3. This is needed 1043e705c121SKalle Valo * to make sure the reference accounting is correct 1044e705c121SKalle Valo * (and there is no stale d0i3_exit_work). 1045e705c121SKalle Valo */ 1046e705c121SKalle Valo wait_event_timeout(mvm->d0i3_exit_waitq, 1047e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_IN_D0I3, 1048e705c121SKalle Valo &mvm->status), 1049e705c121SKalle Valo HZ); 1050e705c121SKalle Valo } 1051e705c121SKalle Valo 1052e705c121SKalle Valo mutex_lock(&mvm->mutex); 1053e705c121SKalle Valo ret = __iwl_mvm_mac_start(mvm); 1054e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1055e705c121SKalle Valo 1056e705c121SKalle Valo return ret; 1057e705c121SKalle Valo } 1058e705c121SKalle Valo 1059e705c121SKalle Valo static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1060e705c121SKalle Valo { 1061e705c121SKalle Valo int ret; 1062e705c121SKalle Valo 1063e705c121SKalle Valo mutex_lock(&mvm->mutex); 1064e705c121SKalle Valo 1065e705c121SKalle Valo clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1066e705c121SKalle Valo iwl_mvm_d0i3_enable_tx(mvm, NULL); 1067e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, true, NULL); 1068e705c121SKalle Valo if (ret) 1069e705c121SKalle Valo IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1070e705c121SKalle Valo ret); 1071e705c121SKalle Valo 1072e705c121SKalle Valo /* allow transport/FW low power modes */ 1073e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN); 1074e705c121SKalle Valo 1075e705c121SKalle Valo /* 1076e705c121SKalle Valo * If we have TDLS peers, remove them. We don't know the last seqno/PN 1077e705c121SKalle Valo * of packets the FW sent out, so we must reconnect. 1078e705c121SKalle Valo */ 1079e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 1080e705c121SKalle Valo 1081e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1082e705c121SKalle Valo } 1083e705c121SKalle Valo 1084e705c121SKalle Valo static void iwl_mvm_resume_complete(struct iwl_mvm *mvm) 1085e705c121SKalle Valo { 1086e705c121SKalle Valo if (!iwl_mvm_is_d0i3_supported(mvm)) 1087e705c121SKalle Valo return; 1088e705c121SKalle Valo 1089e705c121SKalle Valo if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND) 1090e705c121SKalle Valo if (!wait_event_timeout(mvm->d0i3_exit_waitq, 1091e705c121SKalle Valo !test_bit(IWL_MVM_STATUS_IN_D0I3, 1092e705c121SKalle Valo &mvm->status), 1093e705c121SKalle Valo HZ)) 1094e705c121SKalle Valo WARN_ONCE(1, "D0i3 exit on resume timed out\n"); 1095e705c121SKalle Valo } 1096e705c121SKalle Valo 1097e705c121SKalle Valo static void 1098e705c121SKalle Valo iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1099e705c121SKalle Valo enum ieee80211_reconfig_type reconfig_type) 1100e705c121SKalle Valo { 1101e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1102e705c121SKalle Valo 1103e705c121SKalle Valo switch (reconfig_type) { 1104e705c121SKalle Valo case IEEE80211_RECONFIG_TYPE_RESTART: 1105e705c121SKalle Valo iwl_mvm_restart_complete(mvm); 1106e705c121SKalle Valo break; 1107e705c121SKalle Valo case IEEE80211_RECONFIG_TYPE_SUSPEND: 1108e705c121SKalle Valo iwl_mvm_resume_complete(mvm); 1109e705c121SKalle Valo break; 1110e705c121SKalle Valo } 1111e705c121SKalle Valo } 1112e705c121SKalle Valo 1113e705c121SKalle Valo void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1114e705c121SKalle Valo { 1115e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1116e705c121SKalle Valo 1117e705c121SKalle Valo /* firmware counters are obviously reset now, but we shouldn't 1118e705c121SKalle Valo * partially track so also clear the fw_reset_accu counters. 1119e705c121SKalle Valo */ 1120e705c121SKalle Valo memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1121e705c121SKalle Valo 1122e705c121SKalle Valo /* async_handlers_wk is now blocked */ 1123e705c121SKalle Valo 1124e705c121SKalle Valo /* 1125e705c121SKalle Valo * The work item could be running or queued if the 1126e705c121SKalle Valo * ROC time event stops just as we get here. 1127e705c121SKalle Valo */ 1128e705c121SKalle Valo flush_work(&mvm->roc_done_wk); 1129e705c121SKalle Valo 1130e705c121SKalle Valo iwl_trans_stop_device(mvm->trans); 1131e705c121SKalle Valo 1132e705c121SKalle Valo iwl_mvm_async_handlers_purge(mvm); 1133e705c121SKalle Valo /* async_handlers_list is empty and will stay empty: HW is stopped */ 1134e705c121SKalle Valo 1135e705c121SKalle Valo /* the fw is stopped, the aux sta is dead: clean up driver state */ 1136e705c121SKalle Valo iwl_mvm_del_aux_sta(mvm); 1137e705c121SKalle Valo 1138e705c121SKalle Valo /* 1139e705c121SKalle Valo * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete() 1140e705c121SKalle Valo * won't be called in this case). 1141e705c121SKalle Valo * But make sure to cleanup interfaces that have gone down before/during 1142e705c121SKalle Valo * HW restart was requested. 1143e705c121SKalle Valo */ 1144e705c121SKalle Valo if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1145e705c121SKalle Valo ieee80211_iterate_interfaces(mvm->hw, 0, 1146e705c121SKalle Valo iwl_mvm_cleanup_iterator, mvm); 1147e705c121SKalle Valo 1148e705c121SKalle Valo /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1149e705c121SKalle Valo * make sure there's nothing left there and warn if any is found. 1150e705c121SKalle Valo */ 1151e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1152e705c121SKalle Valo int i; 1153e705c121SKalle Valo 1154e705c121SKalle Valo for (i = 0; i < mvm->max_scans; i++) { 1155e705c121SKalle Valo if (WARN_ONCE(mvm->scan_uid_status[i], 1156e705c121SKalle Valo "UMAC scan UID %d status was not cleaned\n", 1157e705c121SKalle Valo i)) 1158e705c121SKalle Valo mvm->scan_uid_status[i] = 0; 1159e705c121SKalle Valo } 1160e705c121SKalle Valo } 1161e705c121SKalle Valo 1162e705c121SKalle Valo mvm->ucode_loaded = false; 1163e705c121SKalle Valo } 1164e705c121SKalle Valo 1165e705c121SKalle Valo static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1166e705c121SKalle Valo { 1167e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1168e705c121SKalle Valo 1169e705c121SKalle Valo flush_work(&mvm->d0i3_exit_work); 1170e705c121SKalle Valo flush_work(&mvm->async_handlers_wk); 1171e705c121SKalle Valo cancel_delayed_work_sync(&mvm->fw_dump_wk); 1172e705c121SKalle Valo iwl_mvm_free_fw_dump_desc(mvm); 1173e705c121SKalle Valo 1174e705c121SKalle Valo mutex_lock(&mvm->mutex); 1175e705c121SKalle Valo __iwl_mvm_mac_stop(mvm); 1176e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1177e705c121SKalle Valo 1178e705c121SKalle Valo /* 1179e705c121SKalle Valo * The worker might have been waiting for the mutex, let it run and 1180e705c121SKalle Valo * discover that its list is now empty. 1181e705c121SKalle Valo */ 1182e705c121SKalle Valo cancel_work_sync(&mvm->async_handlers_wk); 1183e705c121SKalle Valo } 1184e705c121SKalle Valo 1185e705c121SKalle Valo static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1186e705c121SKalle Valo { 1187e705c121SKalle Valo u16 i; 1188e705c121SKalle Valo 1189e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1190e705c121SKalle Valo 1191e705c121SKalle Valo for (i = 0; i < NUM_PHY_CTX; i++) 1192e705c121SKalle Valo if (!mvm->phy_ctxts[i].ref) 1193e705c121SKalle Valo return &mvm->phy_ctxts[i]; 1194e705c121SKalle Valo 1195e705c121SKalle Valo IWL_ERR(mvm, "No available PHY context\n"); 1196e705c121SKalle Valo return NULL; 1197e705c121SKalle Valo } 1198e705c121SKalle Valo 1199e705c121SKalle Valo static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1200e705c121SKalle Valo s16 tx_power) 1201e705c121SKalle Valo { 1202e705c121SKalle Valo struct iwl_dev_tx_power_cmd cmd = { 1203e705c121SKalle Valo .v2.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1204e705c121SKalle Valo .v2.mac_context_id = 1205e705c121SKalle Valo cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1206e705c121SKalle Valo .v2.pwr_restriction = cpu_to_le16(8 * tx_power), 1207e705c121SKalle Valo }; 1208e705c121SKalle Valo int len = sizeof(cmd); 1209e705c121SKalle Valo 1210e705c121SKalle Valo if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1211e705c121SKalle Valo cmd.v2.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1212e705c121SKalle Valo 1213e705c121SKalle Valo if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_TX_POWER_CHAIN)) 1214e705c121SKalle Valo len = sizeof(cmd.v2); 1215e705c121SKalle Valo 1216e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); 1217e705c121SKalle Valo } 1218e705c121SKalle Valo 1219e705c121SKalle Valo static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1220e705c121SKalle Valo struct ieee80211_vif *vif) 1221e705c121SKalle Valo { 1222e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1223e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1224e705c121SKalle Valo int ret; 1225e705c121SKalle Valo 1226e705c121SKalle Valo mvmvif->mvm = mvm; 1227e705c121SKalle Valo 1228e705c121SKalle Valo /* 1229e705c121SKalle Valo * make sure D0i3 exit is completed, otherwise a target access 1230e705c121SKalle Valo * during tx queue configuration could be done when still in 1231e705c121SKalle Valo * D0i3 state. 1232e705c121SKalle Valo */ 1233e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF); 1234e705c121SKalle Valo if (ret) 1235e705c121SKalle Valo return ret; 1236e705c121SKalle Valo 1237e705c121SKalle Valo /* 1238e705c121SKalle Valo * Not much to do here. The stack will not allow interface 1239e705c121SKalle Valo * types or combinations that we didn't advertise, so we 1240e705c121SKalle Valo * don't really have to check the types. 1241e705c121SKalle Valo */ 1242e705c121SKalle Valo 1243e705c121SKalle Valo mutex_lock(&mvm->mutex); 1244e705c121SKalle Valo 1245e705c121SKalle Valo /* make sure that beacon statistics don't go backwards with FW reset */ 1246e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1247e705c121SKalle Valo mvmvif->beacon_stats.accu_num_beacons += 1248e705c121SKalle Valo mvmvif->beacon_stats.num_beacons; 1249e705c121SKalle Valo 1250e705c121SKalle Valo /* Allocate resources for the MAC context, and add it to the fw */ 1251e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1252e705c121SKalle Valo if (ret) 1253e705c121SKalle Valo goto out_unlock; 1254e705c121SKalle Valo 1255e705c121SKalle Valo /* Counting number of interfaces is needed for legacy PM */ 1256e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1257e705c121SKalle Valo mvm->vif_count++; 1258e705c121SKalle Valo 1259e705c121SKalle Valo /* 1260e705c121SKalle Valo * The AP binding flow can be done only after the beacon 1261e705c121SKalle Valo * template is configured (which happens only in the mac80211 1262e705c121SKalle Valo * start_ap() flow), and adding the broadcast station can happen 1263e705c121SKalle Valo * only after the binding. 1264e705c121SKalle Valo * In addition, since modifying the MAC before adding a bcast 1265e705c121SKalle Valo * station is not allowed by the FW, delay the adding of MAC context to 1266e705c121SKalle Valo * the point where we can also add the bcast station. 1267e705c121SKalle Valo * In short: there's not much we can do at this point, other than 1268e705c121SKalle Valo * allocating resources :) 1269e705c121SKalle Valo */ 1270e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP || 1271e705c121SKalle Valo vif->type == NL80211_IFTYPE_ADHOC) { 1272e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1273e705c121SKalle Valo if (ret) { 1274e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1275e705c121SKalle Valo goto out_release; 1276e705c121SKalle Valo } 1277e705c121SKalle Valo 1278e705c121SKalle Valo iwl_mvm_vif_dbgfs_register(mvm, vif); 1279e705c121SKalle Valo goto out_unlock; 1280e705c121SKalle Valo } 1281e705c121SKalle Valo 1282e705c121SKalle Valo mvmvif->features |= hw->netdev_features; 1283e705c121SKalle Valo 1284e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1285e705c121SKalle Valo if (ret) 1286e705c121SKalle Valo goto out_release; 1287e705c121SKalle Valo 1288e705c121SKalle Valo ret = iwl_mvm_power_update_mac(mvm); 1289e705c121SKalle Valo if (ret) 1290e705c121SKalle Valo goto out_remove_mac; 1291e705c121SKalle Valo 1292e705c121SKalle Valo /* beacon filtering */ 1293e705c121SKalle Valo ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1294e705c121SKalle Valo if (ret) 1295e705c121SKalle Valo goto out_remove_mac; 1296e705c121SKalle Valo 1297e705c121SKalle Valo if (!mvm->bf_allowed_vif && 1298e705c121SKalle Valo vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1299e705c121SKalle Valo mvm->bf_allowed_vif = mvmvif; 1300e705c121SKalle Valo vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1301e705c121SKalle Valo IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1302e705c121SKalle Valo } 1303e705c121SKalle Valo 1304e705c121SKalle Valo /* 1305e705c121SKalle Valo * P2P_DEVICE interface does not have a channel context assigned to it, 1306e705c121SKalle Valo * so a dedicated PHY context is allocated to it and the corresponding 1307e705c121SKalle Valo * MAC context is bound to it at this stage. 1308e705c121SKalle Valo */ 1309e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1310e705c121SKalle Valo 1311e705c121SKalle Valo mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1312e705c121SKalle Valo if (!mvmvif->phy_ctxt) { 1313e705c121SKalle Valo ret = -ENOSPC; 1314e705c121SKalle Valo goto out_free_bf; 1315e705c121SKalle Valo } 1316e705c121SKalle Valo 1317e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 1318e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 1319e705c121SKalle Valo if (ret) 1320e705c121SKalle Valo goto out_unref_phy; 1321e705c121SKalle Valo 1322e705c121SKalle Valo ret = iwl_mvm_add_bcast_sta(mvm, vif); 1323e705c121SKalle Valo if (ret) 1324e705c121SKalle Valo goto out_unbind; 1325e705c121SKalle Valo 1326e705c121SKalle Valo /* Save a pointer to p2p device vif, so it can later be used to 1327e705c121SKalle Valo * update the p2p device MAC when a GO is started/stopped */ 1328e705c121SKalle Valo mvm->p2p_device_vif = vif; 1329e705c121SKalle Valo } 1330e705c121SKalle Valo 1331e705c121SKalle Valo iwl_mvm_vif_dbgfs_register(mvm, vif); 1332e705c121SKalle Valo goto out_unlock; 1333e705c121SKalle Valo 1334e705c121SKalle Valo out_unbind: 1335e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 1336e705c121SKalle Valo out_unref_phy: 1337e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1338e705c121SKalle Valo out_free_bf: 1339e705c121SKalle Valo if (mvm->bf_allowed_vif == mvmvif) { 1340e705c121SKalle Valo mvm->bf_allowed_vif = NULL; 1341e705c121SKalle Valo vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1342e705c121SKalle Valo IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1343e705c121SKalle Valo } 1344e705c121SKalle Valo out_remove_mac: 1345e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 1346e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 1347e705c121SKalle Valo out_release: 1348e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1349e705c121SKalle Valo mvm->vif_count--; 1350e705c121SKalle Valo 1351e705c121SKalle Valo iwl_mvm_mac_ctxt_release(mvm, vif); 1352e705c121SKalle Valo out_unlock: 1353e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1354e705c121SKalle Valo 1355e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF); 1356e705c121SKalle Valo 1357e705c121SKalle Valo return ret; 1358e705c121SKalle Valo } 1359e705c121SKalle Valo 1360e705c121SKalle Valo static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1361e705c121SKalle Valo struct ieee80211_vif *vif) 1362e705c121SKalle Valo { 1363e705c121SKalle Valo u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif); 1364e705c121SKalle Valo 1365e705c121SKalle Valo if (tfd_msk) { 1366e705c121SKalle Valo /* 1367e705c121SKalle Valo * mac80211 first removes all the stations of the vif and 1368e705c121SKalle Valo * then removes the vif. When it removes a station it also 1369e705c121SKalle Valo * flushes the AMPDU session. So by now, all the AMPDU sessions 1370e705c121SKalle Valo * of all the stations of this vif are closed, and the queues 1371e705c121SKalle Valo * of these AMPDU sessions are properly closed. 1372e705c121SKalle Valo * We still need to take care of the shared queues of the vif. 1373e705c121SKalle Valo * Flush them here. 1374e705c121SKalle Valo */ 1375e705c121SKalle Valo mutex_lock(&mvm->mutex); 1376e705c121SKalle Valo iwl_mvm_flush_tx_path(mvm, tfd_msk, 0); 1377e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1378e705c121SKalle Valo 1379e705c121SKalle Valo /* 1380e705c121SKalle Valo * There are transports that buffer a few frames in the host. 1381e705c121SKalle Valo * For these, the flush above isn't enough since while we were 1382e705c121SKalle Valo * flushing, the transport might have sent more frames to the 1383e705c121SKalle Valo * device. To solve this, wait here until the transport is 1384e705c121SKalle Valo * empty. Technically, this could have replaced the flush 1385e705c121SKalle Valo * above, but flush is much faster than draining. So flush 1386e705c121SKalle Valo * first, and drain to make sure we have no frames in the 1387e705c121SKalle Valo * transport anymore. 1388e705c121SKalle Valo * If a station still had frames on the shared queues, it is 1389e705c121SKalle Valo * already marked as draining, so to complete the draining, we 1390e705c121SKalle Valo * just need to wait until the transport is empty. 1391e705c121SKalle Valo */ 1392e705c121SKalle Valo iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk); 1393e705c121SKalle Valo } 1394e705c121SKalle Valo 1395e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1396e705c121SKalle Valo /* 1397e705c121SKalle Valo * Flush the ROC worker which will flush the OFFCHANNEL queue. 1398e705c121SKalle Valo * We assume here that all the packets sent to the OFFCHANNEL 1399e705c121SKalle Valo * queue are sent in ROC session. 1400e705c121SKalle Valo */ 1401e705c121SKalle Valo flush_work(&mvm->roc_done_wk); 1402e705c121SKalle Valo } else { 1403e705c121SKalle Valo /* 1404e705c121SKalle Valo * By now, all the AC queues are empty. The AGG queues are 1405e705c121SKalle Valo * empty too. We already got all the Tx responses for all the 1406e705c121SKalle Valo * packets in the queues. The drain work can have been 1407e705c121SKalle Valo * triggered. Flush it. 1408e705c121SKalle Valo */ 1409e705c121SKalle Valo flush_work(&mvm->sta_drained_wk); 1410e705c121SKalle Valo } 1411e705c121SKalle Valo } 1412e705c121SKalle Valo 1413e705c121SKalle Valo static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1414e705c121SKalle Valo struct ieee80211_vif *vif) 1415e705c121SKalle Valo { 1416e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1417e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1418e705c121SKalle Valo 1419e705c121SKalle Valo iwl_mvm_prepare_mac_removal(mvm, vif); 1420e705c121SKalle Valo 1421e705c121SKalle Valo mutex_lock(&mvm->mutex); 1422e705c121SKalle Valo 1423e705c121SKalle Valo if (mvm->bf_allowed_vif == mvmvif) { 1424e705c121SKalle Valo mvm->bf_allowed_vif = NULL; 1425e705c121SKalle Valo vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1426e705c121SKalle Valo IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1427e705c121SKalle Valo } 1428e705c121SKalle Valo 1429e705c121SKalle Valo iwl_mvm_vif_dbgfs_clean(mvm, vif); 1430e705c121SKalle Valo 1431e705c121SKalle Valo /* 1432e705c121SKalle Valo * For AP/GO interface, the tear down of the resources allocated to the 1433e705c121SKalle Valo * interface is be handled as part of the stop_ap flow. 1434e705c121SKalle Valo */ 1435e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP || 1436e705c121SKalle Valo vif->type == NL80211_IFTYPE_ADHOC) { 1437e705c121SKalle Valo #ifdef CONFIG_NL80211_TESTMODE 1438e705c121SKalle Valo if (vif == mvm->noa_vif) { 1439e705c121SKalle Valo mvm->noa_vif = NULL; 1440e705c121SKalle Valo mvm->noa_duration = 0; 1441e705c121SKalle Valo } 1442e705c121SKalle Valo #endif 1443e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif); 1444e705c121SKalle Valo goto out_release; 1445e705c121SKalle Valo } 1446e705c121SKalle Valo 1447e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1448e705c121SKalle Valo mvm->p2p_device_vif = NULL; 1449e705c121SKalle Valo iwl_mvm_rm_bcast_sta(mvm, vif); 1450e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 1451e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1452e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 1453e705c121SKalle Valo } 1454e705c121SKalle Valo 1455e705c121SKalle Valo if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) 1456e705c121SKalle Valo mvm->vif_count--; 1457e705c121SKalle Valo 1458e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 1459e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 1460e705c121SKalle Valo 1461e705c121SKalle Valo out_release: 1462e705c121SKalle Valo iwl_mvm_mac_ctxt_release(mvm, vif); 1463e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1464e705c121SKalle Valo } 1465e705c121SKalle Valo 1466e705c121SKalle Valo static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) 1467e705c121SKalle Valo { 1468e705c121SKalle Valo return 0; 1469e705c121SKalle Valo } 1470e705c121SKalle Valo 1471e705c121SKalle Valo struct iwl_mvm_mc_iter_data { 1472e705c121SKalle Valo struct iwl_mvm *mvm; 1473e705c121SKalle Valo int port_id; 1474e705c121SKalle Valo }; 1475e705c121SKalle Valo 1476e705c121SKalle Valo static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1477e705c121SKalle Valo struct ieee80211_vif *vif) 1478e705c121SKalle Valo { 1479e705c121SKalle Valo struct iwl_mvm_mc_iter_data *data = _data; 1480e705c121SKalle Valo struct iwl_mvm *mvm = data->mvm; 1481e705c121SKalle Valo struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1482e705c121SKalle Valo int ret, len; 1483e705c121SKalle Valo 1484e705c121SKalle Valo /* if we don't have free ports, mcast frames will be dropped */ 1485e705c121SKalle Valo if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1486e705c121SKalle Valo return; 1487e705c121SKalle Valo 1488e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || 1489e705c121SKalle Valo !vif->bss_conf.assoc) 1490e705c121SKalle Valo return; 1491e705c121SKalle Valo 1492e705c121SKalle Valo cmd->port_id = data->port_id++; 1493e705c121SKalle Valo memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1494e705c121SKalle Valo len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1495e705c121SKalle Valo 1496e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd); 1497e705c121SKalle Valo if (ret) 1498e705c121SKalle Valo IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1499e705c121SKalle Valo } 1500e705c121SKalle Valo 1501e705c121SKalle Valo static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1502e705c121SKalle Valo { 1503e705c121SKalle Valo struct iwl_mvm_mc_iter_data iter_data = { 1504e705c121SKalle Valo .mvm = mvm, 1505e705c121SKalle Valo }; 1506e705c121SKalle Valo 1507e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 1508e705c121SKalle Valo 1509e705c121SKalle Valo if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1510e705c121SKalle Valo return; 1511e705c121SKalle Valo 1512e705c121SKalle Valo ieee80211_iterate_active_interfaces_atomic( 1513e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1514e705c121SKalle Valo iwl_mvm_mc_iface_iterator, &iter_data); 1515e705c121SKalle Valo } 1516e705c121SKalle Valo 1517e705c121SKalle Valo static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1518e705c121SKalle Valo struct netdev_hw_addr_list *mc_list) 1519e705c121SKalle Valo { 1520e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1521e705c121SKalle Valo struct iwl_mcast_filter_cmd *cmd; 1522e705c121SKalle Valo struct netdev_hw_addr *addr; 1523e705c121SKalle Valo int addr_count; 1524e705c121SKalle Valo bool pass_all; 1525e705c121SKalle Valo int len; 1526e705c121SKalle Valo 1527e705c121SKalle Valo addr_count = netdev_hw_addr_list_count(mc_list); 1528e705c121SKalle Valo pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1529e705c121SKalle Valo IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1530e705c121SKalle Valo if (pass_all) 1531e705c121SKalle Valo addr_count = 0; 1532e705c121SKalle Valo 1533e705c121SKalle Valo len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1534e705c121SKalle Valo cmd = kzalloc(len, GFP_ATOMIC); 1535e705c121SKalle Valo if (!cmd) 1536e705c121SKalle Valo return 0; 1537e705c121SKalle Valo 1538e705c121SKalle Valo if (pass_all) { 1539e705c121SKalle Valo cmd->pass_all = 1; 1540e705c121SKalle Valo return (u64)(unsigned long)cmd; 1541e705c121SKalle Valo } 1542e705c121SKalle Valo 1543e705c121SKalle Valo netdev_hw_addr_list_for_each(addr, mc_list) { 1544e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1545e705c121SKalle Valo cmd->count, addr->addr); 1546e705c121SKalle Valo memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1547e705c121SKalle Valo addr->addr, ETH_ALEN); 1548e705c121SKalle Valo cmd->count++; 1549e705c121SKalle Valo } 1550e705c121SKalle Valo 1551e705c121SKalle Valo return (u64)(unsigned long)cmd; 1552e705c121SKalle Valo } 1553e705c121SKalle Valo 1554e705c121SKalle Valo static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1555e705c121SKalle Valo unsigned int changed_flags, 1556e705c121SKalle Valo unsigned int *total_flags, 1557e705c121SKalle Valo u64 multicast) 1558e705c121SKalle Valo { 1559e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1560e705c121SKalle Valo struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1561e705c121SKalle Valo 1562e705c121SKalle Valo mutex_lock(&mvm->mutex); 1563e705c121SKalle Valo 1564e705c121SKalle Valo /* replace previous configuration */ 1565e705c121SKalle Valo kfree(mvm->mcast_filter_cmd); 1566e705c121SKalle Valo mvm->mcast_filter_cmd = cmd; 1567e705c121SKalle Valo 1568e705c121SKalle Valo if (!cmd) 1569e705c121SKalle Valo goto out; 1570e705c121SKalle Valo 1571e705c121SKalle Valo iwl_mvm_recalc_multicast(mvm); 1572e705c121SKalle Valo out: 1573e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1574e705c121SKalle Valo *total_flags = 0; 1575e705c121SKalle Valo } 1576e705c121SKalle Valo 1577e705c121SKalle Valo static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1578e705c121SKalle Valo struct ieee80211_vif *vif, 1579e705c121SKalle Valo unsigned int filter_flags, 1580e705c121SKalle Valo unsigned int changed_flags) 1581e705c121SKalle Valo { 1582e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1583e705c121SKalle Valo 1584e705c121SKalle Valo /* We support only filter for probe requests */ 1585e705c121SKalle Valo if (!(changed_flags & FIF_PROBE_REQ)) 1586e705c121SKalle Valo return; 1587e705c121SKalle Valo 1588e705c121SKalle Valo /* Supported only for p2p client interfaces */ 1589e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || 1590e705c121SKalle Valo !vif->p2p) 1591e705c121SKalle Valo return; 1592e705c121SKalle Valo 1593e705c121SKalle Valo mutex_lock(&mvm->mutex); 1594e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1595e705c121SKalle Valo mutex_unlock(&mvm->mutex); 1596e705c121SKalle Valo } 1597e705c121SKalle Valo 1598e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1599e705c121SKalle Valo struct iwl_bcast_iter_data { 1600e705c121SKalle Valo struct iwl_mvm *mvm; 1601e705c121SKalle Valo struct iwl_bcast_filter_cmd *cmd; 1602e705c121SKalle Valo u8 current_filter; 1603e705c121SKalle Valo }; 1604e705c121SKalle Valo 1605e705c121SKalle Valo static void 1606e705c121SKalle Valo iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, 1607e705c121SKalle Valo const struct iwl_fw_bcast_filter *in_filter, 1608e705c121SKalle Valo struct iwl_fw_bcast_filter *out_filter) 1609e705c121SKalle Valo { 1610e705c121SKalle Valo struct iwl_fw_bcast_filter_attr *attr; 1611e705c121SKalle Valo int i; 1612e705c121SKalle Valo 1613e705c121SKalle Valo memcpy(out_filter, in_filter, sizeof(*out_filter)); 1614e705c121SKalle Valo 1615e705c121SKalle Valo for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { 1616e705c121SKalle Valo attr = &out_filter->attrs[i]; 1617e705c121SKalle Valo 1618e705c121SKalle Valo if (!attr->mask) 1619e705c121SKalle Valo break; 1620e705c121SKalle Valo 1621e705c121SKalle Valo switch (attr->reserved1) { 1622e705c121SKalle Valo case cpu_to_le16(BC_FILTER_MAGIC_IP): 1623e705c121SKalle Valo if (vif->bss_conf.arp_addr_cnt != 1) { 1624e705c121SKalle Valo attr->mask = 0; 1625e705c121SKalle Valo continue; 1626e705c121SKalle Valo } 1627e705c121SKalle Valo 1628e705c121SKalle Valo attr->val = vif->bss_conf.arp_addr_list[0]; 1629e705c121SKalle Valo break; 1630e705c121SKalle Valo case cpu_to_le16(BC_FILTER_MAGIC_MAC): 1631e705c121SKalle Valo attr->val = *(__be32 *)&vif->addr[2]; 1632e705c121SKalle Valo break; 1633e705c121SKalle Valo default: 1634e705c121SKalle Valo break; 1635e705c121SKalle Valo } 1636e705c121SKalle Valo attr->reserved1 = 0; 1637e705c121SKalle Valo out_filter->num_attrs++; 1638e705c121SKalle Valo } 1639e705c121SKalle Valo } 1640e705c121SKalle Valo 1641e705c121SKalle Valo static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, 1642e705c121SKalle Valo struct ieee80211_vif *vif) 1643e705c121SKalle Valo { 1644e705c121SKalle Valo struct iwl_bcast_iter_data *data = _data; 1645e705c121SKalle Valo struct iwl_mvm *mvm = data->mvm; 1646e705c121SKalle Valo struct iwl_bcast_filter_cmd *cmd = data->cmd; 1647e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1648e705c121SKalle Valo struct iwl_fw_bcast_mac *bcast_mac; 1649e705c121SKalle Valo int i; 1650e705c121SKalle Valo 1651e705c121SKalle Valo if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) 1652e705c121SKalle Valo return; 1653e705c121SKalle Valo 1654e705c121SKalle Valo bcast_mac = &cmd->macs[mvmvif->id]; 1655e705c121SKalle Valo 1656e705c121SKalle Valo /* 1657e705c121SKalle Valo * enable filtering only for associated stations, but not for P2P 1658e705c121SKalle Valo * Clients 1659e705c121SKalle Valo */ 1660e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || 1661e705c121SKalle Valo !vif->bss_conf.assoc) 1662e705c121SKalle Valo return; 1663e705c121SKalle Valo 1664e705c121SKalle Valo bcast_mac->default_discard = 1; 1665e705c121SKalle Valo 1666e705c121SKalle Valo /* copy all configured filters */ 1667e705c121SKalle Valo for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { 1668e705c121SKalle Valo /* 1669e705c121SKalle Valo * Make sure we don't exceed our filters limit. 1670e705c121SKalle Valo * if there is still a valid filter to be configured, 1671e705c121SKalle Valo * be on the safe side and just allow bcast for this mac. 1672e705c121SKalle Valo */ 1673e705c121SKalle Valo if (WARN_ON_ONCE(data->current_filter >= 1674e705c121SKalle Valo ARRAY_SIZE(cmd->filters))) { 1675e705c121SKalle Valo bcast_mac->default_discard = 0; 1676e705c121SKalle Valo bcast_mac->attached_filters = 0; 1677e705c121SKalle Valo break; 1678e705c121SKalle Valo } 1679e705c121SKalle Valo 1680e705c121SKalle Valo iwl_mvm_set_bcast_filter(vif, 1681e705c121SKalle Valo &mvm->bcast_filters[i], 1682e705c121SKalle Valo &cmd->filters[data->current_filter]); 1683e705c121SKalle Valo 1684e705c121SKalle Valo /* skip current filter if it contains no attributes */ 1685e705c121SKalle Valo if (!cmd->filters[data->current_filter].num_attrs) 1686e705c121SKalle Valo continue; 1687e705c121SKalle Valo 1688e705c121SKalle Valo /* attach the filter to current mac */ 1689e705c121SKalle Valo bcast_mac->attached_filters |= 1690e705c121SKalle Valo cpu_to_le16(BIT(data->current_filter)); 1691e705c121SKalle Valo 1692e705c121SKalle Valo data->current_filter++; 1693e705c121SKalle Valo } 1694e705c121SKalle Valo } 1695e705c121SKalle Valo 1696e705c121SKalle Valo bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, 1697e705c121SKalle Valo struct iwl_bcast_filter_cmd *cmd) 1698e705c121SKalle Valo { 1699e705c121SKalle Valo struct iwl_bcast_iter_data iter_data = { 1700e705c121SKalle Valo .mvm = mvm, 1701e705c121SKalle Valo .cmd = cmd, 1702e705c121SKalle Valo }; 1703e705c121SKalle Valo 1704e705c121SKalle Valo if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) 1705e705c121SKalle Valo return false; 1706e705c121SKalle Valo 1707e705c121SKalle Valo memset(cmd, 0, sizeof(*cmd)); 1708e705c121SKalle Valo cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); 1709e705c121SKalle Valo cmd->max_macs = ARRAY_SIZE(cmd->macs); 1710e705c121SKalle Valo 1711e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_DEBUGFS 1712e705c121SKalle Valo /* use debugfs filters/macs if override is configured */ 1713e705c121SKalle Valo if (mvm->dbgfs_bcast_filtering.override) { 1714e705c121SKalle Valo memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, 1715e705c121SKalle Valo sizeof(cmd->filters)); 1716e705c121SKalle Valo memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, 1717e705c121SKalle Valo sizeof(cmd->macs)); 1718e705c121SKalle Valo return true; 1719e705c121SKalle Valo } 1720e705c121SKalle Valo #endif 1721e705c121SKalle Valo 1722e705c121SKalle Valo /* if no filters are configured, do nothing */ 1723e705c121SKalle Valo if (!mvm->bcast_filters) 1724e705c121SKalle Valo return false; 1725e705c121SKalle Valo 1726e705c121SKalle Valo /* configure and attach these filters for each associated sta vif */ 1727e705c121SKalle Valo ieee80211_iterate_active_interfaces( 1728e705c121SKalle Valo mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1729e705c121SKalle Valo iwl_mvm_bcast_filter_iterator, &iter_data); 1730e705c121SKalle Valo 1731e705c121SKalle Valo return true; 1732e705c121SKalle Valo } 1733e705c121SKalle Valo static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm, 1734e705c121SKalle Valo struct ieee80211_vif *vif) 1735e705c121SKalle Valo { 1736e705c121SKalle Valo struct iwl_bcast_filter_cmd cmd; 1737e705c121SKalle Valo 1738e705c121SKalle Valo if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) 1739e705c121SKalle Valo return 0; 1740e705c121SKalle Valo 1741e705c121SKalle Valo if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1742e705c121SKalle Valo return 0; 1743e705c121SKalle Valo 1744e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1745e705c121SKalle Valo sizeof(cmd), &cmd); 1746e705c121SKalle Valo } 1747e705c121SKalle Valo #else 1748e705c121SKalle Valo static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm, 1749e705c121SKalle Valo struct ieee80211_vif *vif) 1750e705c121SKalle Valo { 1751e705c121SKalle Valo return 0; 1752e705c121SKalle Valo } 1753e705c121SKalle Valo #endif 1754e705c121SKalle Valo 1755e705c121SKalle Valo static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 1756e705c121SKalle Valo struct ieee80211_vif *vif, 1757e705c121SKalle Valo struct ieee80211_bss_conf *bss_conf, 1758e705c121SKalle Valo u32 changes) 1759e705c121SKalle Valo { 1760e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1761e705c121SKalle Valo int ret; 1762e705c121SKalle Valo 1763e705c121SKalle Valo /* 1764e705c121SKalle Valo * Re-calculate the tsf id, as the master-slave relations depend on the 1765e705c121SKalle Valo * beacon interval, which was not known when the station interface was 1766e705c121SKalle Valo * added. 1767e705c121SKalle Valo */ 1768e705c121SKalle Valo if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) 1769e705c121SKalle Valo iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 1770e705c121SKalle Valo 1771e705c121SKalle Valo /* 1772e705c121SKalle Valo * If we're not associated yet, take the (new) BSSID before associating 1773e705c121SKalle Valo * so the firmware knows. If we're already associated, then use the old 1774e705c121SKalle Valo * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 1775e705c121SKalle Valo * branch for disassociation below. 1776e705c121SKalle Valo */ 1777e705c121SKalle Valo if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 1778e705c121SKalle Valo memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 1779e705c121SKalle Valo 1780e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); 1781e705c121SKalle Valo if (ret) 1782e705c121SKalle Valo IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 1783e705c121SKalle Valo 1784e705c121SKalle Valo /* after sending it once, adopt mac80211 data */ 1785e705c121SKalle Valo memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 1786e705c121SKalle Valo mvmvif->associated = bss_conf->assoc; 1787e705c121SKalle Valo 1788e705c121SKalle Valo if (changes & BSS_CHANGED_ASSOC) { 1789e705c121SKalle Valo if (bss_conf->assoc) { 1790e705c121SKalle Valo /* clear statistics to get clean beacon counter */ 1791e705c121SKalle Valo iwl_mvm_request_statistics(mvm, true); 1792e705c121SKalle Valo memset(&mvmvif->beacon_stats, 0, 1793e705c121SKalle Valo sizeof(mvmvif->beacon_stats)); 1794e705c121SKalle Valo 1795e705c121SKalle Valo /* add quota for this interface */ 1796e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, true, NULL); 1797e705c121SKalle Valo if (ret) { 1798e705c121SKalle Valo IWL_ERR(mvm, "failed to update quotas\n"); 1799e705c121SKalle Valo return; 1800e705c121SKalle Valo } 1801e705c121SKalle Valo 1802e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 1803e705c121SKalle Valo &mvm->status)) { 1804e705c121SKalle Valo /* 1805e705c121SKalle Valo * If we're restarting then the firmware will 1806e705c121SKalle Valo * obviously have lost synchronisation with 1807e705c121SKalle Valo * the AP. It will attempt to synchronise by 1808e705c121SKalle Valo * itself, but we can make it more reliable by 1809e705c121SKalle Valo * scheduling a session protection time event. 1810e705c121SKalle Valo * 1811e705c121SKalle Valo * The firmware needs to receive a beacon to 1812e705c121SKalle Valo * catch up with synchronisation, use 110% of 1813e705c121SKalle Valo * the beacon interval. 1814e705c121SKalle Valo * 1815e705c121SKalle Valo * Set a large maximum delay to allow for more 1816e705c121SKalle Valo * than a single interface. 1817e705c121SKalle Valo */ 1818e705c121SKalle Valo u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 1819e705c121SKalle Valo iwl_mvm_protect_session(mvm, vif, dur, dur, 1820e705c121SKalle Valo 5 * dur, false); 1821e705c121SKalle Valo } 1822e705c121SKalle Valo 1823e705c121SKalle Valo iwl_mvm_sf_update(mvm, vif, false); 1824e705c121SKalle Valo iwl_mvm_power_vif_assoc(mvm, vif); 1825e705c121SKalle Valo if (vif->p2p) { 1826e705c121SKalle Valo iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT); 1827e705c121SKalle Valo iwl_mvm_update_smps(mvm, vif, 1828e705c121SKalle Valo IWL_MVM_SMPS_REQ_PROT, 1829e705c121SKalle Valo IEEE80211_SMPS_DYNAMIC); 1830e705c121SKalle Valo } 1831e705c121SKalle Valo } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { 1832e705c121SKalle Valo /* 1833e705c121SKalle Valo * If update fails - SF might be running in associated 1834e705c121SKalle Valo * mode while disassociated - which is forbidden. 1835e705c121SKalle Valo */ 1836e705c121SKalle Valo WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false), 1837e705c121SKalle Valo "Failed to update SF upon disassociation\n"); 1838e705c121SKalle Valo 1839e705c121SKalle Valo /* remove AP station now that the MAC is unassoc */ 1840e705c121SKalle Valo ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id); 1841e705c121SKalle Valo if (ret) 1842e705c121SKalle Valo IWL_ERR(mvm, "failed to remove AP station\n"); 1843e705c121SKalle Valo 1844e705c121SKalle Valo if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) 1845e705c121SKalle Valo mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; 1846e705c121SKalle Valo mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; 1847e705c121SKalle Valo /* remove quota for this interface */ 1848e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, false, NULL); 1849e705c121SKalle Valo if (ret) 1850e705c121SKalle Valo IWL_ERR(mvm, "failed to update quotas\n"); 1851e705c121SKalle Valo 1852e705c121SKalle Valo if (vif->p2p) 1853e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT); 1854e705c121SKalle Valo 1855e705c121SKalle Valo /* this will take the cleared BSSID from bss_conf */ 1856e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1857e705c121SKalle Valo if (ret) 1858e705c121SKalle Valo IWL_ERR(mvm, 1859e705c121SKalle Valo "failed to update MAC %pM (clear after unassoc)\n", 1860e705c121SKalle Valo vif->addr); 1861e705c121SKalle Valo } 1862e705c121SKalle Valo 1863e705c121SKalle Valo iwl_mvm_recalc_multicast(mvm); 1864e705c121SKalle Valo iwl_mvm_configure_bcast_filter(mvm, vif); 1865e705c121SKalle Valo 1866e705c121SKalle Valo /* reset rssi values */ 1867e705c121SKalle Valo mvmvif->bf_data.ave_beacon_signal = 0; 1868e705c121SKalle Valo 1869e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 1870e705c121SKalle Valo iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, 1871e705c121SKalle Valo IEEE80211_SMPS_AUTOMATIC); 1872*355346baSAvraham Stern if (fw_has_capa(&mvm->fw->ucode_capa, 1873*355346baSAvraham Stern IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 1874*355346baSAvraham Stern iwl_mvm_config_scan(mvm); 1875e705c121SKalle Valo } else if (changes & BSS_CHANGED_BEACON_INFO) { 1876e705c121SKalle Valo /* 1877e705c121SKalle Valo * We received a beacon _after_ association so 1878e705c121SKalle Valo * remove the session protection. 1879e705c121SKalle Valo */ 1880e705c121SKalle Valo iwl_mvm_remove_time_event(mvm, mvmvif, 1881e705c121SKalle Valo &mvmvif->time_event_data); 1882e705c121SKalle Valo } 1883e705c121SKalle Valo 1884e705c121SKalle Valo if (changes & BSS_CHANGED_BEACON_INFO) { 1885e705c121SKalle Valo iwl_mvm_sf_update(mvm, vif, false); 1886e705c121SKalle Valo WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 1887e705c121SKalle Valo } 1888e705c121SKalle Valo 1889e705c121SKalle Valo if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) { 1890e705c121SKalle Valo ret = iwl_mvm_power_update_mac(mvm); 1891e705c121SKalle Valo if (ret) 1892e705c121SKalle Valo IWL_ERR(mvm, "failed to update power mode\n"); 1893e705c121SKalle Valo } 1894e705c121SKalle Valo 1895e705c121SKalle Valo if (changes & BSS_CHANGED_TXPOWER) { 1896e705c121SKalle Valo IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 1897e705c121SKalle Valo bss_conf->txpower); 1898e705c121SKalle Valo iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 1899e705c121SKalle Valo } 1900e705c121SKalle Valo 1901e705c121SKalle Valo if (changes & BSS_CHANGED_CQM) { 1902e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 1903e705c121SKalle Valo /* reset cqm events tracking */ 1904e705c121SKalle Valo mvmvif->bf_data.last_cqm_event = 0; 1905e705c121SKalle Valo if (mvmvif->bf_data.bf_enabled) { 1906e705c121SKalle Valo ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1907e705c121SKalle Valo if (ret) 1908e705c121SKalle Valo IWL_ERR(mvm, 1909e705c121SKalle Valo "failed to update CQM thresholds\n"); 1910e705c121SKalle Valo } 1911e705c121SKalle Valo } 1912e705c121SKalle Valo 1913e705c121SKalle Valo if (changes & BSS_CHANGED_ARP_FILTER) { 1914e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); 1915e705c121SKalle Valo iwl_mvm_configure_bcast_filter(mvm, vif); 1916e705c121SKalle Valo } 1917e705c121SKalle Valo } 1918e705c121SKalle Valo 1919e705c121SKalle Valo static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 1920e705c121SKalle Valo struct ieee80211_vif *vif) 1921e705c121SKalle Valo { 1922e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1923e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1924e705c121SKalle Valo int ret; 1925e705c121SKalle Valo 1926e705c121SKalle Valo /* 1927e705c121SKalle Valo * iwl_mvm_mac_ctxt_add() might read directly from the device 1928e705c121SKalle Valo * (the system time), so make sure it is available. 1929e705c121SKalle Valo */ 1930e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP); 1931e705c121SKalle Valo if (ret) 1932e705c121SKalle Valo return ret; 1933e705c121SKalle Valo 1934e705c121SKalle Valo mutex_lock(&mvm->mutex); 1935e705c121SKalle Valo 1936e705c121SKalle Valo /* Send the beacon template */ 1937e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); 1938e705c121SKalle Valo if (ret) 1939e705c121SKalle Valo goto out_unlock; 1940e705c121SKalle Valo 1941e705c121SKalle Valo /* 1942e705c121SKalle Valo * Re-calculate the tsf id, as the master-slave relations depend on the 1943e705c121SKalle Valo * beacon interval, which was not known when the AP interface was added. 1944e705c121SKalle Valo */ 1945e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP) 1946e705c121SKalle Valo iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 1947e705c121SKalle Valo 1948e705c121SKalle Valo mvmvif->ap_assoc_sta_count = 0; 1949e705c121SKalle Valo 1950e705c121SKalle Valo /* Add the mac context */ 1951e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1952e705c121SKalle Valo if (ret) 1953e705c121SKalle Valo goto out_unlock; 1954e705c121SKalle Valo 1955e705c121SKalle Valo /* Perform the binding */ 1956e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 1957e705c121SKalle Valo if (ret) 1958e705c121SKalle Valo goto out_remove; 1959e705c121SKalle Valo 1960e705c121SKalle Valo /* Send the bcast station. At this stage the TBTT and DTIM time events 1961e705c121SKalle Valo * are added and applied to the scheduler */ 1962e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 1963e705c121SKalle Valo if (ret) 1964e705c121SKalle Valo goto out_unbind; 1965e705c121SKalle Valo 1966e705c121SKalle Valo /* must be set before quota calculations */ 1967e705c121SKalle Valo mvmvif->ap_ibss_active = true; 1968e705c121SKalle Valo 1969e705c121SKalle Valo /* power updated needs to be done before quotas */ 1970e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 1971e705c121SKalle Valo 1972e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, false, NULL); 1973e705c121SKalle Valo if (ret) 1974e705c121SKalle Valo goto out_quota_failed; 1975e705c121SKalle Valo 1976e705c121SKalle Valo /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 1977e705c121SKalle Valo if (vif->p2p && mvm->p2p_device_vif) 1978e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 1979e705c121SKalle Valo 1980e705c121SKalle Valo iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS); 1981e705c121SKalle Valo 1982e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 1983e705c121SKalle Valo 1984e705c121SKalle Valo /* we don't support TDLS during DCM */ 1985e705c121SKalle Valo if (iwl_mvm_phy_ctx_count(mvm) > 1) 1986e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 1987e705c121SKalle Valo 1988e705c121SKalle Valo goto out_unlock; 1989e705c121SKalle Valo 1990e705c121SKalle Valo out_quota_failed: 1991e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 1992e705c121SKalle Valo mvmvif->ap_ibss_active = false; 1993e705c121SKalle Valo iwl_mvm_send_rm_bcast_sta(mvm, vif); 1994e705c121SKalle Valo out_unbind: 1995e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 1996e705c121SKalle Valo out_remove: 1997e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 1998e705c121SKalle Valo out_unlock: 1999e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2000e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP); 2001e705c121SKalle Valo return ret; 2002e705c121SKalle Valo } 2003e705c121SKalle Valo 2004e705c121SKalle Valo static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2005e705c121SKalle Valo struct ieee80211_vif *vif) 2006e705c121SKalle Valo { 2007e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2008e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2009e705c121SKalle Valo 2010e705c121SKalle Valo iwl_mvm_prepare_mac_removal(mvm, vif); 2011e705c121SKalle Valo 2012e705c121SKalle Valo mutex_lock(&mvm->mutex); 2013e705c121SKalle Valo 2014e705c121SKalle Valo /* Handle AP stop while in CSA */ 2015e705c121SKalle Valo if (rcu_access_pointer(mvm->csa_vif) == vif) { 2016e705c121SKalle Valo iwl_mvm_remove_time_event(mvm, mvmvif, 2017e705c121SKalle Valo &mvmvif->time_event_data); 2018e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_vif, NULL); 2019e705c121SKalle Valo mvmvif->csa_countdown = false; 2020e705c121SKalle Valo } 2021e705c121SKalle Valo 2022e705c121SKalle Valo if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2023e705c121SKalle Valo RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2024e705c121SKalle Valo mvm->csa_tx_block_bcn_timeout = 0; 2025e705c121SKalle Valo } 2026e705c121SKalle Valo 2027e705c121SKalle Valo mvmvif->ap_ibss_active = false; 2028e705c121SKalle Valo mvm->ap_last_beacon_gp2 = 0; 2029e705c121SKalle Valo 2030e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 2031e705c121SKalle Valo 2032e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS); 2033e705c121SKalle Valo 2034e705c121SKalle Valo /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2035e705c121SKalle Valo if (vif->p2p && mvm->p2p_device_vif) 2036e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2037e705c121SKalle Valo 2038e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, NULL); 2039e705c121SKalle Valo iwl_mvm_send_rm_bcast_sta(mvm, vif); 2040e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 2041e705c121SKalle Valo 2042e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 2043e705c121SKalle Valo 2044e705c121SKalle Valo iwl_mvm_mac_ctxt_remove(mvm, vif); 2045e705c121SKalle Valo 2046e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2047e705c121SKalle Valo } 2048e705c121SKalle Valo 2049e705c121SKalle Valo static void 2050e705c121SKalle Valo iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 2051e705c121SKalle Valo struct ieee80211_vif *vif, 2052e705c121SKalle Valo struct ieee80211_bss_conf *bss_conf, 2053e705c121SKalle Valo u32 changes) 2054e705c121SKalle Valo { 2055e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2056e705c121SKalle Valo 2057e705c121SKalle Valo /* Changes will be applied when the AP/IBSS is started */ 2058e705c121SKalle Valo if (!mvmvif->ap_ibss_active) 2059e705c121SKalle Valo return; 2060e705c121SKalle Valo 2061e705c121SKalle Valo if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 2062e705c121SKalle Valo BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 2063e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 2064e705c121SKalle Valo IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2065e705c121SKalle Valo 2066e705c121SKalle Valo /* Need to send a new beacon template to the FW */ 2067e705c121SKalle Valo if (changes & BSS_CHANGED_BEACON && 2068e705c121SKalle Valo iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) 2069e705c121SKalle Valo IWL_WARN(mvm, "Failed updating beacon data\n"); 2070e705c121SKalle Valo 2071e705c121SKalle Valo if (changes & BSS_CHANGED_TXPOWER) { 2072e705c121SKalle Valo IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 2073e705c121SKalle Valo bss_conf->txpower); 2074e705c121SKalle Valo iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2075e705c121SKalle Valo } 2076e705c121SKalle Valo 2077e705c121SKalle Valo } 2078e705c121SKalle Valo 2079e705c121SKalle Valo static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 2080e705c121SKalle Valo struct ieee80211_vif *vif, 2081e705c121SKalle Valo struct ieee80211_bss_conf *bss_conf, 2082e705c121SKalle Valo u32 changes) 2083e705c121SKalle Valo { 2084e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2085e705c121SKalle Valo 2086e705c121SKalle Valo /* 2087e705c121SKalle Valo * iwl_mvm_bss_info_changed_station() might call 2088e705c121SKalle Valo * iwl_mvm_protect_session(), which reads directly from 2089e705c121SKalle Valo * the device (the system time), so make sure it is available. 2090e705c121SKalle Valo */ 2091e705c121SKalle Valo if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED)) 2092e705c121SKalle Valo return; 2093e705c121SKalle Valo 2094e705c121SKalle Valo mutex_lock(&mvm->mutex); 2095e705c121SKalle Valo 2096e705c121SKalle Valo if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) 2097e705c121SKalle Valo iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 2098e705c121SKalle Valo 2099e705c121SKalle Valo switch (vif->type) { 2100e705c121SKalle Valo case NL80211_IFTYPE_STATION: 2101e705c121SKalle Valo iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 2102e705c121SKalle Valo break; 2103e705c121SKalle Valo case NL80211_IFTYPE_AP: 2104e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 2105e705c121SKalle Valo iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 2106e705c121SKalle Valo break; 2107e705c121SKalle Valo default: 2108e705c121SKalle Valo /* shouldn't happen */ 2109e705c121SKalle Valo WARN_ON_ONCE(1); 2110e705c121SKalle Valo } 2111e705c121SKalle Valo 2112e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2113e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED); 2114e705c121SKalle Valo } 2115e705c121SKalle Valo 2116e705c121SKalle Valo static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, 2117e705c121SKalle Valo struct ieee80211_vif *vif, 2118e705c121SKalle Valo struct ieee80211_scan_request *hw_req) 2119e705c121SKalle Valo { 2120e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2121e705c121SKalle Valo int ret; 2122e705c121SKalle Valo 2123e705c121SKalle Valo if (hw_req->req.n_channels == 0 || 2124e705c121SKalle Valo hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 2125e705c121SKalle Valo return -EINVAL; 2126e705c121SKalle Valo 2127e705c121SKalle Valo mutex_lock(&mvm->mutex); 2128e705c121SKalle Valo ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 2129e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2130e705c121SKalle Valo 2131e705c121SKalle Valo return ret; 2132e705c121SKalle Valo } 2133e705c121SKalle Valo 2134e705c121SKalle Valo static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 2135e705c121SKalle Valo struct ieee80211_vif *vif) 2136e705c121SKalle Valo { 2137e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2138e705c121SKalle Valo 2139e705c121SKalle Valo mutex_lock(&mvm->mutex); 2140e705c121SKalle Valo 2141e705c121SKalle Valo /* Due to a race condition, it's possible that mac80211 asks 2142e705c121SKalle Valo * us to stop a hw_scan when it's already stopped. This can 2143e705c121SKalle Valo * happen, for instance, if we stopped the scan ourselves, 2144e705c121SKalle Valo * called ieee80211_scan_completed() and the userspace called 2145e705c121SKalle Valo * cancel scan scan before ieee80211_scan_work() could run. 2146e705c121SKalle Valo * To handle that, simply return if the scan is not running. 2147e705c121SKalle Valo */ 2148e705c121SKalle Valo if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 2149e705c121SKalle Valo iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 2150e705c121SKalle Valo 2151e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2152e705c121SKalle Valo } 2153e705c121SKalle Valo 2154e705c121SKalle Valo static void 2155e705c121SKalle Valo iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 2156e705c121SKalle Valo struct ieee80211_sta *sta, u16 tids, 2157e705c121SKalle Valo int num_frames, 2158e705c121SKalle Valo enum ieee80211_frame_release_type reason, 2159e705c121SKalle Valo bool more_data) 2160e705c121SKalle Valo { 2161e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2162e705c121SKalle Valo 2163e705c121SKalle Valo /* Called when we need to transmit (a) frame(s) from mac80211 */ 2164e705c121SKalle Valo 2165e705c121SKalle Valo iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2166e705c121SKalle Valo tids, more_data, false); 2167e705c121SKalle Valo } 2168e705c121SKalle Valo 2169e705c121SKalle Valo static void 2170e705c121SKalle Valo iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 2171e705c121SKalle Valo struct ieee80211_sta *sta, u16 tids, 2172e705c121SKalle Valo int num_frames, 2173e705c121SKalle Valo enum ieee80211_frame_release_type reason, 2174e705c121SKalle Valo bool more_data) 2175e705c121SKalle Valo { 2176e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2177e705c121SKalle Valo 2178e705c121SKalle Valo /* Called when we need to transmit (a) frame(s) from agg queue */ 2179e705c121SKalle Valo 2180e705c121SKalle Valo iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2181e705c121SKalle Valo tids, more_data, true); 2182e705c121SKalle Valo } 2183e705c121SKalle Valo 2184e705c121SKalle Valo static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2185e705c121SKalle Valo struct ieee80211_vif *vif, 2186e705c121SKalle Valo enum sta_notify_cmd cmd, 2187e705c121SKalle Valo struct ieee80211_sta *sta) 2188e705c121SKalle Valo { 2189e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2190e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2191e705c121SKalle Valo unsigned long txqs = 0, tids = 0; 2192e705c121SKalle Valo int tid; 2193e705c121SKalle Valo 2194e705c121SKalle Valo spin_lock_bh(&mvmsta->lock); 2195e705c121SKalle Valo for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 2196e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2197e705c121SKalle Valo 2198e705c121SKalle Valo if (tid_data->state != IWL_AGG_ON && 2199e705c121SKalle Valo tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA) 2200e705c121SKalle Valo continue; 2201e705c121SKalle Valo 2202e705c121SKalle Valo __set_bit(tid_data->txq_id, &txqs); 2203e705c121SKalle Valo 2204e705c121SKalle Valo if (iwl_mvm_tid_queued(tid_data) == 0) 2205e705c121SKalle Valo continue; 2206e705c121SKalle Valo 2207e705c121SKalle Valo __set_bit(tid, &tids); 2208e705c121SKalle Valo } 2209e705c121SKalle Valo 2210e705c121SKalle Valo switch (cmd) { 2211e705c121SKalle Valo case STA_NOTIFY_SLEEP: 2212e705c121SKalle Valo if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) 2213e705c121SKalle Valo ieee80211_sta_block_awake(hw, sta, true); 2214e705c121SKalle Valo 2215e705c121SKalle Valo for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 2216e705c121SKalle Valo ieee80211_sta_set_buffered(sta, tid, true); 2217e705c121SKalle Valo 2218e705c121SKalle Valo if (txqs) 2219e705c121SKalle Valo iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 2220e705c121SKalle Valo /* 2221e705c121SKalle Valo * The fw updates the STA to be asleep. Tx packets on the Tx 2222e705c121SKalle Valo * queues to this station will not be transmitted. The fw will 2223e705c121SKalle Valo * send a Tx response with TX_STATUS_FAIL_DEST_PS. 2224e705c121SKalle Valo */ 2225e705c121SKalle Valo break; 2226e705c121SKalle Valo case STA_NOTIFY_AWAKE: 2227e705c121SKalle Valo if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT)) 2228e705c121SKalle Valo break; 2229e705c121SKalle Valo 2230e705c121SKalle Valo if (txqs) 2231e705c121SKalle Valo iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 2232e705c121SKalle Valo iwl_mvm_sta_modify_ps_wake(mvm, sta); 2233e705c121SKalle Valo break; 2234e705c121SKalle Valo default: 2235e705c121SKalle Valo break; 2236e705c121SKalle Valo } 2237e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock); 2238e705c121SKalle Valo } 2239e705c121SKalle Valo 2240e705c121SKalle Valo static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 2241e705c121SKalle Valo struct ieee80211_vif *vif, 2242e705c121SKalle Valo struct ieee80211_sta *sta) 2243e705c121SKalle Valo { 2244e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2245e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2246e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2247e705c121SKalle Valo 2248e705c121SKalle Valo /* 2249e705c121SKalle Valo * This is called before mac80211 does RCU synchronisation, 2250e705c121SKalle Valo * so here we already invalidate our internal RCU-protected 2251e705c121SKalle Valo * station pointer. The rest of the code will thus no longer 2252e705c121SKalle Valo * be able to find the station this way, and we don't rely 2253e705c121SKalle Valo * on further RCU synchronisation after the sta_state() 2254e705c121SKalle Valo * callback deleted the station. 2255e705c121SKalle Valo */ 2256e705c121SKalle Valo mutex_lock(&mvm->mutex); 2257e705c121SKalle Valo if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) 2258e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], 2259e705c121SKalle Valo ERR_PTR(-ENOENT)); 2260e705c121SKalle Valo 2261e705c121SKalle Valo if (mvm_sta->vif->type == NL80211_IFTYPE_AP) { 2262e705c121SKalle Valo mvmvif->ap_assoc_sta_count--; 2263e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2264e705c121SKalle Valo } 2265e705c121SKalle Valo 2266e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2267e705c121SKalle Valo } 2268e705c121SKalle Valo 2269e705c121SKalle Valo static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2270e705c121SKalle Valo const u8 *bssid) 2271e705c121SKalle Valo { 2272e705c121SKalle Valo if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 2273e705c121SKalle Valo return; 2274e705c121SKalle Valo 2275e705c121SKalle Valo if (iwlwifi_mod_params.uapsd_disable) { 2276e705c121SKalle Valo vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2277e705c121SKalle Valo return; 2278e705c121SKalle Valo } 2279e705c121SKalle Valo 2280e705c121SKalle Valo vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 2281e705c121SKalle Valo } 2282e705c121SKalle Valo 22831e8f1329SGolan Ben-Ami static void 22841e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 22851e8f1329SGolan Ben-Ami struct ieee80211_vif *vif, u8 *peer_addr, 22861e8f1329SGolan Ben-Ami enum nl80211_tdls_operation action) 22871e8f1329SGolan Ben-Ami { 22881e8f1329SGolan Ben-Ami struct iwl_fw_dbg_trigger_tlv *trig; 22891e8f1329SGolan Ben-Ami struct iwl_fw_dbg_trigger_tdls *tdls_trig; 22901e8f1329SGolan Ben-Ami 22911e8f1329SGolan Ben-Ami if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS)) 22921e8f1329SGolan Ben-Ami return; 22931e8f1329SGolan Ben-Ami 22941e8f1329SGolan Ben-Ami trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS); 22951e8f1329SGolan Ben-Ami tdls_trig = (void *)trig->data; 22961e8f1329SGolan Ben-Ami if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 22971e8f1329SGolan Ben-Ami return; 22981e8f1329SGolan Ben-Ami 22991e8f1329SGolan Ben-Ami if (!(tdls_trig->action_bitmap & BIT(action))) 23001e8f1329SGolan Ben-Ami return; 23011e8f1329SGolan Ben-Ami 23021e8f1329SGolan Ben-Ami if (tdls_trig->peer_mode && 23031e8f1329SGolan Ben-Ami memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 23041e8f1329SGolan Ben-Ami return; 23051e8f1329SGolan Ben-Ami 23061e8f1329SGolan Ben-Ami iwl_mvm_fw_dbg_collect_trig(mvm, trig, 23071e8f1329SGolan Ben-Ami "TDLS event occurred, peer %pM, action %d", 23081e8f1329SGolan Ben-Ami peer_addr, action); 23091e8f1329SGolan Ben-Ami } 23101e8f1329SGolan Ben-Ami 2311e705c121SKalle Valo static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 2312e705c121SKalle Valo struct ieee80211_vif *vif, 2313e705c121SKalle Valo struct ieee80211_sta *sta, 2314e705c121SKalle Valo enum ieee80211_sta_state old_state, 2315e705c121SKalle Valo enum ieee80211_sta_state new_state) 2316e705c121SKalle Valo { 2317e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2318e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2319e705c121SKalle Valo int ret; 2320e705c121SKalle Valo 2321e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 2322e705c121SKalle Valo sta->addr, old_state, new_state); 2323e705c121SKalle Valo 2324e705c121SKalle Valo /* this would be a mac80211 bug ... but don't crash */ 2325e705c121SKalle Valo if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) 2326e705c121SKalle Valo return -EINVAL; 2327e705c121SKalle Valo 2328e705c121SKalle Valo /* if a STA is being removed, reuse its ID */ 2329e705c121SKalle Valo flush_work(&mvm->sta_drained_wk); 2330e705c121SKalle Valo 2331e705c121SKalle Valo mutex_lock(&mvm->mutex); 2332e705c121SKalle Valo if (old_state == IEEE80211_STA_NOTEXIST && 2333e705c121SKalle Valo new_state == IEEE80211_STA_NONE) { 2334e705c121SKalle Valo /* 2335e705c121SKalle Valo * Firmware bug - it'll crash if the beacon interval is less 2336e705c121SKalle Valo * than 16. We can't avoid connecting at all, so refuse the 2337e705c121SKalle Valo * station state change, this will cause mac80211 to abandon 2338e705c121SKalle Valo * attempts to connect to this AP, and eventually wpa_s will 2339e705c121SKalle Valo * blacklist the AP... 2340e705c121SKalle Valo */ 2341e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 2342e705c121SKalle Valo vif->bss_conf.beacon_int < 16) { 2343e705c121SKalle Valo IWL_ERR(mvm, 2344e705c121SKalle Valo "AP %pM beacon interval is %d, refusing due to firmware bug!\n", 2345e705c121SKalle Valo sta->addr, vif->bss_conf.beacon_int); 2346e705c121SKalle Valo ret = -EINVAL; 2347e705c121SKalle Valo goto out_unlock; 2348e705c121SKalle Valo } 2349e705c121SKalle Valo 2350e705c121SKalle Valo if (sta->tdls && 2351e705c121SKalle Valo (vif->p2p || 2352e705c121SKalle Valo iwl_mvm_tdls_sta_count(mvm, NULL) == 2353e705c121SKalle Valo IWL_MVM_TDLS_STA_COUNT || 2354e705c121SKalle Valo iwl_mvm_phy_ctx_count(mvm) > 1)) { 2355e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 2356e705c121SKalle Valo ret = -EBUSY; 2357e705c121SKalle Valo goto out_unlock; 2358e705c121SKalle Valo } 2359e705c121SKalle Valo 2360e705c121SKalle Valo ret = iwl_mvm_add_sta(mvm, vif, sta); 23611e8f1329SGolan Ben-Ami if (sta->tdls && ret == 0) { 2362e705c121SKalle Valo iwl_mvm_recalc_tdls_state(mvm, vif, true); 23631e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 23641e8f1329SGolan Ben-Ami NL80211_TDLS_SETUP); 23651e8f1329SGolan Ben-Ami } 2366e705c121SKalle Valo } else if (old_state == IEEE80211_STA_NONE && 2367e705c121SKalle Valo new_state == IEEE80211_STA_AUTH) { 2368e705c121SKalle Valo /* 2369e705c121SKalle Valo * EBS may be disabled due to previous failures reported by FW. 2370e705c121SKalle Valo * Reset EBS status here assuming environment has been changed. 2371e705c121SKalle Valo */ 2372e705c121SKalle Valo mvm->last_ebs_successful = true; 2373e705c121SKalle Valo iwl_mvm_check_uapsd(mvm, vif, sta->addr); 2374e705c121SKalle Valo ret = 0; 2375e705c121SKalle Valo } else if (old_state == IEEE80211_STA_AUTH && 2376e705c121SKalle Valo new_state == IEEE80211_STA_ASSOC) { 2377e705c121SKalle Valo ret = iwl_mvm_update_sta(mvm, vif, sta); 2378e705c121SKalle Valo if (ret == 0) 2379e705c121SKalle Valo iwl_mvm_rs_rate_init(mvm, sta, 2380e705c121SKalle Valo mvmvif->phy_ctxt->channel->band, 2381e705c121SKalle Valo true); 2382e705c121SKalle Valo } else if (old_state == IEEE80211_STA_ASSOC && 2383e705c121SKalle Valo new_state == IEEE80211_STA_AUTHORIZED) { 2384e705c121SKalle Valo 2385e705c121SKalle Valo /* we don't support TDLS during DCM */ 2386e705c121SKalle Valo if (iwl_mvm_phy_ctx_count(mvm) > 1) 2387e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 2388e705c121SKalle Valo 23891e8f1329SGolan Ben-Ami if (sta->tdls) 23901e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 23911e8f1329SGolan Ben-Ami NL80211_TDLS_ENABLE_LINK); 23921e8f1329SGolan Ben-Ami 2393e705c121SKalle Valo /* enable beacon filtering */ 2394e705c121SKalle Valo WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2395e705c121SKalle Valo ret = 0; 2396e705c121SKalle Valo } else if (old_state == IEEE80211_STA_AUTHORIZED && 2397e705c121SKalle Valo new_state == IEEE80211_STA_ASSOC) { 2398e705c121SKalle Valo /* disable beacon filtering */ 2399e705c121SKalle Valo WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0)); 2400e705c121SKalle Valo ret = 0; 2401e705c121SKalle Valo } else if (old_state == IEEE80211_STA_ASSOC && 2402e705c121SKalle Valo new_state == IEEE80211_STA_AUTH) { 2403e705c121SKalle Valo ret = 0; 2404e705c121SKalle Valo } else if (old_state == IEEE80211_STA_AUTH && 2405e705c121SKalle Valo new_state == IEEE80211_STA_NONE) { 2406e705c121SKalle Valo ret = 0; 2407e705c121SKalle Valo } else if (old_state == IEEE80211_STA_NONE && 2408e705c121SKalle Valo new_state == IEEE80211_STA_NOTEXIST) { 2409e705c121SKalle Valo ret = iwl_mvm_rm_sta(mvm, vif, sta); 24101e8f1329SGolan Ben-Ami if (sta->tdls) { 2411e705c121SKalle Valo iwl_mvm_recalc_tdls_state(mvm, vif, false); 24121e8f1329SGolan Ben-Ami iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 24131e8f1329SGolan Ben-Ami NL80211_TDLS_DISABLE_LINK); 24141e8f1329SGolan Ben-Ami } 2415e705c121SKalle Valo } else { 2416e705c121SKalle Valo ret = -EIO; 2417e705c121SKalle Valo } 2418e705c121SKalle Valo out_unlock: 2419e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2420e705c121SKalle Valo 2421e705c121SKalle Valo if (sta->tdls && ret == 0) { 2422e705c121SKalle Valo if (old_state == IEEE80211_STA_NOTEXIST && 2423e705c121SKalle Valo new_state == IEEE80211_STA_NONE) 2424e705c121SKalle Valo ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 2425e705c121SKalle Valo else if (old_state == IEEE80211_STA_NONE && 2426e705c121SKalle Valo new_state == IEEE80211_STA_NOTEXIST) 2427e705c121SKalle Valo ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 2428e705c121SKalle Valo } 2429e705c121SKalle Valo 2430e705c121SKalle Valo return ret; 2431e705c121SKalle Valo } 2432e705c121SKalle Valo 2433e705c121SKalle Valo static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 2434e705c121SKalle Valo { 2435e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2436e705c121SKalle Valo 2437e705c121SKalle Valo mvm->rts_threshold = value; 2438e705c121SKalle Valo 2439e705c121SKalle Valo return 0; 2440e705c121SKalle Valo } 2441e705c121SKalle Valo 2442e705c121SKalle Valo static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, 2443e705c121SKalle Valo struct ieee80211_vif *vif, 2444e705c121SKalle Valo struct ieee80211_sta *sta, u32 changed) 2445e705c121SKalle Valo { 2446e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2447e705c121SKalle Valo 2448e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION && 2449e705c121SKalle Valo changed & IEEE80211_RC_NSS_CHANGED) 2450e705c121SKalle Valo iwl_mvm_sf_update(mvm, vif, false); 2451e705c121SKalle Valo } 2452e705c121SKalle Valo 2453e705c121SKalle Valo static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 2454e705c121SKalle Valo struct ieee80211_vif *vif, u16 ac, 2455e705c121SKalle Valo const struct ieee80211_tx_queue_params *params) 2456e705c121SKalle Valo { 2457e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2458e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2459e705c121SKalle Valo 2460e705c121SKalle Valo mvmvif->queue_params[ac] = *params; 2461e705c121SKalle Valo 2462e705c121SKalle Valo /* 2463e705c121SKalle Valo * No need to update right away, we'll get BSS_CHANGED_QOS 2464e705c121SKalle Valo * The exception is P2P_DEVICE interface which needs immediate update. 2465e705c121SKalle Valo */ 2466e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 2467e705c121SKalle Valo int ret; 2468e705c121SKalle Valo 2469e705c121SKalle Valo mutex_lock(&mvm->mutex); 2470e705c121SKalle Valo ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2471e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2472e705c121SKalle Valo return ret; 2473e705c121SKalle Valo } 2474e705c121SKalle Valo return 0; 2475e705c121SKalle Valo } 2476e705c121SKalle Valo 2477e705c121SKalle Valo static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 2478e705c121SKalle Valo struct ieee80211_vif *vif) 2479e705c121SKalle Valo { 2480e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2481e705c121SKalle Valo u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS, 2482e705c121SKalle Valo 200 + vif->bss_conf.beacon_int); 2483e705c121SKalle Valo u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS, 2484e705c121SKalle Valo 100 + vif->bss_conf.beacon_int); 2485e705c121SKalle Valo 2486e705c121SKalle Valo if (WARN_ON_ONCE(vif->bss_conf.assoc)) 2487e705c121SKalle Valo return; 2488e705c121SKalle Valo 2489e705c121SKalle Valo /* 2490e705c121SKalle Valo * iwl_mvm_protect_session() reads directly from the device 2491e705c121SKalle Valo * (the system time), so make sure it is available. 2492e705c121SKalle Valo */ 2493e705c121SKalle Valo if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX)) 2494e705c121SKalle Valo return; 2495e705c121SKalle Valo 2496e705c121SKalle Valo mutex_lock(&mvm->mutex); 2497e705c121SKalle Valo /* Try really hard to protect the session and hear a beacon */ 2498e705c121SKalle Valo iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false); 2499e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2500e705c121SKalle Valo 2501e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX); 2502e705c121SKalle Valo } 2503e705c121SKalle Valo 2504e705c121SKalle Valo static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 2505e705c121SKalle Valo struct ieee80211_vif *vif, 2506e705c121SKalle Valo struct cfg80211_sched_scan_request *req, 2507e705c121SKalle Valo struct ieee80211_scan_ies *ies) 2508e705c121SKalle Valo { 2509e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2510e705c121SKalle Valo 2511e705c121SKalle Valo int ret; 2512e705c121SKalle Valo 2513e705c121SKalle Valo mutex_lock(&mvm->mutex); 2514e705c121SKalle Valo 2515e705c121SKalle Valo if (!vif->bss_conf.idle) { 2516e705c121SKalle Valo ret = -EBUSY; 2517e705c121SKalle Valo goto out; 2518e705c121SKalle Valo } 2519e705c121SKalle Valo 2520e705c121SKalle Valo ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 2521e705c121SKalle Valo 2522e705c121SKalle Valo out: 2523e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2524e705c121SKalle Valo return ret; 2525e705c121SKalle Valo } 2526e705c121SKalle Valo 2527e705c121SKalle Valo static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 2528e705c121SKalle Valo struct ieee80211_vif *vif) 2529e705c121SKalle Valo { 2530e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2531e705c121SKalle Valo int ret; 2532e705c121SKalle Valo 2533e705c121SKalle Valo mutex_lock(&mvm->mutex); 2534e705c121SKalle Valo 2535e705c121SKalle Valo /* Due to a race condition, it's possible that mac80211 asks 2536e705c121SKalle Valo * us to stop a sched_scan when it's already stopped. This 2537e705c121SKalle Valo * can happen, for instance, if we stopped the scan ourselves, 2538e705c121SKalle Valo * called ieee80211_sched_scan_stopped() and the userspace called 2539e705c121SKalle Valo * stop sched scan scan before ieee80211_sched_scan_stopped_work() 2540e705c121SKalle Valo * could run. To handle this, simply return if the scan is 2541e705c121SKalle Valo * not running. 2542e705c121SKalle Valo */ 2543e705c121SKalle Valo if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 2544e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2545e705c121SKalle Valo return 0; 2546e705c121SKalle Valo } 2547e705c121SKalle Valo 2548e705c121SKalle Valo ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 2549e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2550e705c121SKalle Valo iwl_mvm_wait_for_async_handlers(mvm); 2551e705c121SKalle Valo 2552e705c121SKalle Valo return ret; 2553e705c121SKalle Valo } 2554e705c121SKalle Valo 2555e705c121SKalle Valo static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 2556e705c121SKalle Valo enum set_key_cmd cmd, 2557e705c121SKalle Valo struct ieee80211_vif *vif, 2558e705c121SKalle Valo struct ieee80211_sta *sta, 2559e705c121SKalle Valo struct ieee80211_key_conf *key) 2560e705c121SKalle Valo { 2561e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2562e705c121SKalle Valo int ret; 25634615fd15SEmmanuel Grumbach u8 key_offset; 2564e705c121SKalle Valo 2565e705c121SKalle Valo if (iwlwifi_mod_params.sw_crypto) { 2566e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); 2567e705c121SKalle Valo return -EOPNOTSUPP; 2568e705c121SKalle Valo } 2569e705c121SKalle Valo 2570e705c121SKalle Valo switch (key->cipher) { 2571e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP: 2572e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 2573e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; 2574e705c121SKalle Valo break; 2575e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP: 2576e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 2577e705c121SKalle Valo break; 2578e705c121SKalle Valo case WLAN_CIPHER_SUITE_AES_CMAC: 2579e705c121SKalle Valo WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 2580e705c121SKalle Valo break; 2581e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40: 2582e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104: 2583e705c121SKalle Valo /* For non-client mode, only use WEP keys for TX as we probably 2584e705c121SKalle Valo * don't have a station yet anyway and would then have to keep 2585e705c121SKalle Valo * track of the keys, linking them to each of the clients/peers 2586e705c121SKalle Valo * as they appear. For now, don't do that, for performance WEP 2587e705c121SKalle Valo * offload doesn't really matter much, but we need it for some 2588e705c121SKalle Valo * other offload features in client mode. 2589e705c121SKalle Valo */ 2590e705c121SKalle Valo if (vif->type != NL80211_IFTYPE_STATION) 2591e705c121SKalle Valo return 0; 2592e705c121SKalle Valo break; 2593e705c121SKalle Valo default: 2594e705c121SKalle Valo /* currently FW supports only one optional cipher scheme */ 2595e705c121SKalle Valo if (hw->n_cipher_schemes && 2596e705c121SKalle Valo hw->cipher_schemes->cipher == key->cipher) 2597e705c121SKalle Valo key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 2598e705c121SKalle Valo else 2599e705c121SKalle Valo return -EOPNOTSUPP; 2600e705c121SKalle Valo } 2601e705c121SKalle Valo 2602e705c121SKalle Valo mutex_lock(&mvm->mutex); 2603e705c121SKalle Valo 2604e705c121SKalle Valo switch (cmd) { 2605e705c121SKalle Valo case SET_KEY: 2606e705c121SKalle Valo if ((vif->type == NL80211_IFTYPE_ADHOC || 2607e705c121SKalle Valo vif->type == NL80211_IFTYPE_AP) && !sta) { 2608e705c121SKalle Valo /* 2609e705c121SKalle Valo * GTK on AP interface is a TX-only key, return 0; 2610e705c121SKalle Valo * on IBSS they're per-station and because we're lazy 2611e705c121SKalle Valo * we don't support them for RX, so do the same. 2612e705c121SKalle Valo */ 2613e705c121SKalle Valo ret = 0; 2614e705c121SKalle Valo key->hw_key_idx = STA_KEY_IDX_INVALID; 2615e705c121SKalle Valo break; 2616e705c121SKalle Valo } 2617e705c121SKalle Valo 2618e705c121SKalle Valo /* During FW restart, in order to restore the state as it was, 2619e705c121SKalle Valo * don't try to reprogram keys we previously failed for. 2620e705c121SKalle Valo */ 2621e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2622e705c121SKalle Valo key->hw_key_idx == STA_KEY_IDX_INVALID) { 2623e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, 2624e705c121SKalle Valo "skip invalid idx key programming during restart\n"); 2625e705c121SKalle Valo ret = 0; 2626e705c121SKalle Valo break; 2627e705c121SKalle Valo } 2628e705c121SKalle Valo 26294615fd15SEmmanuel Grumbach /* in HW restart reuse the index, otherwise request a new one */ 26304615fd15SEmmanuel Grumbach if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 26314615fd15SEmmanuel Grumbach key_offset = key->hw_key_idx; 26324615fd15SEmmanuel Grumbach else 26334615fd15SEmmanuel Grumbach key_offset = STA_KEY_IDX_INVALID; 26344615fd15SEmmanuel Grumbach 2635e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); 26364615fd15SEmmanuel Grumbach ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 2637e705c121SKalle Valo if (ret) { 2638e705c121SKalle Valo IWL_WARN(mvm, "set key failed\n"); 2639e705c121SKalle Valo /* 2640e705c121SKalle Valo * can't add key for RX, but we don't need it 2641e705c121SKalle Valo * in the device for TX so still return 0 2642e705c121SKalle Valo */ 2643e705c121SKalle Valo key->hw_key_idx = STA_KEY_IDX_INVALID; 2644e705c121SKalle Valo ret = 0; 2645e705c121SKalle Valo } 2646e705c121SKalle Valo 2647e705c121SKalle Valo break; 2648e705c121SKalle Valo case DISABLE_KEY: 2649e705c121SKalle Valo if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 2650e705c121SKalle Valo ret = 0; 2651e705c121SKalle Valo break; 2652e705c121SKalle Valo } 2653e705c121SKalle Valo 2654e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 2655e705c121SKalle Valo ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 2656e705c121SKalle Valo break; 2657e705c121SKalle Valo default: 2658e705c121SKalle Valo ret = -EINVAL; 2659e705c121SKalle Valo } 2660e705c121SKalle Valo 2661e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2662e705c121SKalle Valo return ret; 2663e705c121SKalle Valo } 2664e705c121SKalle Valo 2665e705c121SKalle Valo static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 2666e705c121SKalle Valo struct ieee80211_vif *vif, 2667e705c121SKalle Valo struct ieee80211_key_conf *keyconf, 2668e705c121SKalle Valo struct ieee80211_sta *sta, 2669e705c121SKalle Valo u32 iv32, u16 *phase1key) 2670e705c121SKalle Valo { 2671e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2672e705c121SKalle Valo 2673e705c121SKalle Valo if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 2674e705c121SKalle Valo return; 2675e705c121SKalle Valo 2676e705c121SKalle Valo iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 2677e705c121SKalle Valo } 2678e705c121SKalle Valo 2679e705c121SKalle Valo 2680e705c121SKalle Valo static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 2681e705c121SKalle Valo struct iwl_rx_packet *pkt, void *data) 2682e705c121SKalle Valo { 2683e705c121SKalle Valo struct iwl_mvm *mvm = 2684e705c121SKalle Valo container_of(notif_wait, struct iwl_mvm, notif_wait); 2685e705c121SKalle Valo struct iwl_hs20_roc_res *resp; 2686e705c121SKalle Valo int resp_len = iwl_rx_packet_payload_len(pkt); 2687e705c121SKalle Valo struct iwl_mvm_time_event_data *te_data = data; 2688e705c121SKalle Valo 2689e705c121SKalle Valo if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 2690e705c121SKalle Valo return true; 2691e705c121SKalle Valo 2692e705c121SKalle Valo if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 2693e705c121SKalle Valo IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 2694e705c121SKalle Valo return true; 2695e705c121SKalle Valo } 2696e705c121SKalle Valo 2697e705c121SKalle Valo resp = (void *)pkt->data; 2698e705c121SKalle Valo 2699e705c121SKalle Valo IWL_DEBUG_TE(mvm, 2700e705c121SKalle Valo "Aux ROC: Recieved response from ucode: status=%d uid=%d\n", 2701e705c121SKalle Valo resp->status, resp->event_unique_id); 2702e705c121SKalle Valo 2703e705c121SKalle Valo te_data->uid = le32_to_cpu(resp->event_unique_id); 2704e705c121SKalle Valo IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 2705e705c121SKalle Valo te_data->uid); 2706e705c121SKalle Valo 2707e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 2708e705c121SKalle Valo list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 2709e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 2710e705c121SKalle Valo 2711e705c121SKalle Valo return true; 2712e705c121SKalle Valo } 2713e705c121SKalle Valo 2714dc28e12fSMatti Gottlieb #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 2715dc28e12fSMatti Gottlieb #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 2716dc28e12fSMatti Gottlieb #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 2717dc28e12fSMatti Gottlieb #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 2718dc28e12fSMatti Gottlieb #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 2719e705c121SKalle Valo static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 2720e705c121SKalle Valo struct ieee80211_channel *channel, 2721e705c121SKalle Valo struct ieee80211_vif *vif, 2722e705c121SKalle Valo int duration) 2723e705c121SKalle Valo { 2724e705c121SKalle Valo int res, time_reg = DEVICE_SYSTEM_TIME_REG; 2725e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2726e705c121SKalle Valo struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 2727e705c121SKalle Valo static const u16 time_event_response[] = { HOT_SPOT_CMD }; 2728e705c121SKalle Valo struct iwl_notification_wait wait_time_event; 2729dc28e12fSMatti Gottlieb u32 dtim_interval = vif->bss_conf.dtim_period * 2730dc28e12fSMatti Gottlieb vif->bss_conf.beacon_int; 2731dc28e12fSMatti Gottlieb u32 req_dur, delay; 2732e705c121SKalle Valo struct iwl_hs20_roc_req aux_roc_req = { 2733e705c121SKalle Valo .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 2734e705c121SKalle Valo .id_and_color = 2735e705c121SKalle Valo cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 2736e705c121SKalle Valo .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 2737e705c121SKalle Valo /* Set the channel info data */ 2738e705c121SKalle Valo .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ? 2739e705c121SKalle Valo PHY_BAND_24 : PHY_BAND_5, 2740e705c121SKalle Valo .channel_info.channel = channel->hw_value, 2741e705c121SKalle Valo .channel_info.width = PHY_VHT_CHANNEL_MODE20, 2742e705c121SKalle Valo /* Set the time and duration */ 2743e705c121SKalle Valo .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)), 2744e705c121SKalle Valo }; 2745e705c121SKalle Valo 2746dc28e12fSMatti Gottlieb delay = AUX_ROC_MIN_DELAY; 2747dc28e12fSMatti Gottlieb req_dur = MSEC_TO_TU(duration); 2748dc28e12fSMatti Gottlieb 2749dc28e12fSMatti Gottlieb /* 2750dc28e12fSMatti Gottlieb * If we are associated we want the delay time to be at least one 2751dc28e12fSMatti Gottlieb * dtim interval so that the FW can wait until after the DTIM and 2752dc28e12fSMatti Gottlieb * then start the time event, this will potentially allow us to 2753dc28e12fSMatti Gottlieb * remain off-channel for the max duration. 2754dc28e12fSMatti Gottlieb * Since we want to use almost a whole dtim interval we would also 2755dc28e12fSMatti Gottlieb * like the delay to be for 2-3 dtim intervals, in case there are 2756dc28e12fSMatti Gottlieb * other time events with higher priority. 2757dc28e12fSMatti Gottlieb */ 2758dc28e12fSMatti Gottlieb if (vif->bss_conf.assoc) { 2759dc28e12fSMatti Gottlieb delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 2760dc28e12fSMatti Gottlieb /* We cannot remain off-channel longer than the DTIM interval */ 2761dc28e12fSMatti Gottlieb if (dtim_interval <= req_dur) { 2762dc28e12fSMatti Gottlieb req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 2763dc28e12fSMatti Gottlieb if (req_dur <= AUX_ROC_MIN_DURATION) 2764dc28e12fSMatti Gottlieb req_dur = dtim_interval - 2765dc28e12fSMatti Gottlieb AUX_ROC_MIN_SAFETY_BUFFER; 2766dc28e12fSMatti Gottlieb } 2767dc28e12fSMatti Gottlieb } 2768dc28e12fSMatti Gottlieb 2769dc28e12fSMatti Gottlieb aux_roc_req.duration = cpu_to_le32(req_dur); 2770dc28e12fSMatti Gottlieb aux_roc_req.apply_time_max_delay = cpu_to_le32(delay); 2771dc28e12fSMatti Gottlieb 2772dc28e12fSMatti Gottlieb IWL_DEBUG_TE(mvm, 2773dc28e12fSMatti Gottlieb "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 2774dc28e12fSMatti Gottlieb channel->hw_value, req_dur, duration, delay, 2775dc28e12fSMatti Gottlieb dtim_interval); 2776e705c121SKalle Valo /* Set the node address */ 2777e705c121SKalle Valo memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN); 2778e705c121SKalle Valo 2779e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2780e705c121SKalle Valo 2781e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 2782e705c121SKalle Valo 2783e705c121SKalle Valo if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 2784e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 2785e705c121SKalle Valo return -EIO; 2786e705c121SKalle Valo } 2787e705c121SKalle Valo 2788e705c121SKalle Valo te_data->vif = vif; 2789e705c121SKalle Valo te_data->duration = duration; 2790e705c121SKalle Valo te_data->id = HOT_SPOT_CMD; 2791e705c121SKalle Valo 2792e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 2793e705c121SKalle Valo 2794e705c121SKalle Valo /* 2795e705c121SKalle Valo * Use a notification wait, which really just processes the 2796e705c121SKalle Valo * command response and doesn't wait for anything, in order 2797e705c121SKalle Valo * to be able to process the response and get the UID inside 2798e705c121SKalle Valo * the RX path. Using CMD_WANT_SKB doesn't work because it 2799e705c121SKalle Valo * stores the buffer and then wakes up this thread, by which 2800e705c121SKalle Valo * time another notification (that the time event started) 2801e705c121SKalle Valo * might already be processed unsuccessfully. 2802e705c121SKalle Valo */ 2803e705c121SKalle Valo iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 2804e705c121SKalle Valo time_event_response, 2805e705c121SKalle Valo ARRAY_SIZE(time_event_response), 2806e705c121SKalle Valo iwl_mvm_rx_aux_roc, te_data); 2807e705c121SKalle Valo 2808e705c121SKalle Valo res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req), 2809e705c121SKalle Valo &aux_roc_req); 2810e705c121SKalle Valo 2811e705c121SKalle Valo if (res) { 2812e705c121SKalle Valo IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 2813e705c121SKalle Valo iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 2814e705c121SKalle Valo goto out_clear_te; 2815e705c121SKalle Valo } 2816e705c121SKalle Valo 2817e705c121SKalle Valo /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 2818e705c121SKalle Valo res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 2819e705c121SKalle Valo /* should never fail */ 2820e705c121SKalle Valo WARN_ON_ONCE(res); 2821e705c121SKalle Valo 2822e705c121SKalle Valo if (res) { 2823e705c121SKalle Valo out_clear_te: 2824e705c121SKalle Valo spin_lock_bh(&mvm->time_event_lock); 2825e705c121SKalle Valo iwl_mvm_te_clear_data(mvm, te_data); 2826e705c121SKalle Valo spin_unlock_bh(&mvm->time_event_lock); 2827e705c121SKalle Valo } 2828e705c121SKalle Valo 2829e705c121SKalle Valo return res; 2830e705c121SKalle Valo } 2831e705c121SKalle Valo 2832e705c121SKalle Valo static int iwl_mvm_roc(struct ieee80211_hw *hw, 2833e705c121SKalle Valo struct ieee80211_vif *vif, 2834e705c121SKalle Valo struct ieee80211_channel *channel, 2835e705c121SKalle Valo int duration, 2836e705c121SKalle Valo enum ieee80211_roc_type type) 2837e705c121SKalle Valo { 2838e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2839e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2840e705c121SKalle Valo struct cfg80211_chan_def chandef; 2841e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt; 2842e705c121SKalle Valo int ret, i; 2843e705c121SKalle Valo 2844e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 2845e705c121SKalle Valo duration, type); 2846e705c121SKalle Valo 2847e705c121SKalle Valo flush_work(&mvm->roc_done_wk); 2848e705c121SKalle Valo 2849e705c121SKalle Valo mutex_lock(&mvm->mutex); 2850e705c121SKalle Valo 2851e705c121SKalle Valo switch (vif->type) { 2852e705c121SKalle Valo case NL80211_IFTYPE_STATION: 2853e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 2854e705c121SKalle Valo IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 2855e705c121SKalle Valo /* Use aux roc framework (HS20) */ 2856e705c121SKalle Valo ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 2857e705c121SKalle Valo vif, duration); 2858e705c121SKalle Valo goto out_unlock; 2859e705c121SKalle Valo } 2860e705c121SKalle Valo IWL_ERR(mvm, "hotspot not supported\n"); 2861e705c121SKalle Valo ret = -EINVAL; 2862e705c121SKalle Valo goto out_unlock; 2863e705c121SKalle Valo case NL80211_IFTYPE_P2P_DEVICE: 2864e705c121SKalle Valo /* handle below */ 2865e705c121SKalle Valo break; 2866e705c121SKalle Valo default: 2867e705c121SKalle Valo IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 2868e705c121SKalle Valo ret = -EINVAL; 2869e705c121SKalle Valo goto out_unlock; 2870e705c121SKalle Valo } 2871e705c121SKalle Valo 2872e705c121SKalle Valo for (i = 0; i < NUM_PHY_CTX; i++) { 2873e705c121SKalle Valo phy_ctxt = &mvm->phy_ctxts[i]; 2874e705c121SKalle Valo if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) 2875e705c121SKalle Valo continue; 2876e705c121SKalle Valo 2877e705c121SKalle Valo if (phy_ctxt->ref && channel == phy_ctxt->channel) { 2878e705c121SKalle Valo /* 2879e705c121SKalle Valo * Unbind the P2P_DEVICE from the current PHY context, 2880e705c121SKalle Valo * and if the PHY context is not used remove it. 2881e705c121SKalle Valo */ 2882e705c121SKalle Valo ret = iwl_mvm_binding_remove_vif(mvm, vif); 2883e705c121SKalle Valo if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 2884e705c121SKalle Valo goto out_unlock; 2885e705c121SKalle Valo 2886e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 2887e705c121SKalle Valo 2888e705c121SKalle Valo /* Bind the P2P_DEVICE to the current PHY Context */ 2889e705c121SKalle Valo mvmvif->phy_ctxt = phy_ctxt; 2890e705c121SKalle Valo 2891e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 2892e705c121SKalle Valo if (WARN(ret, "Failed binding P2P_DEVICE\n")) 2893e705c121SKalle Valo goto out_unlock; 2894e705c121SKalle Valo 2895e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 2896e705c121SKalle Valo goto schedule_time_event; 2897e705c121SKalle Valo } 2898e705c121SKalle Valo } 2899e705c121SKalle Valo 2900e705c121SKalle Valo /* Need to update the PHY context only if the ROC channel changed */ 2901e705c121SKalle Valo if (channel == mvmvif->phy_ctxt->channel) 2902e705c121SKalle Valo goto schedule_time_event; 2903e705c121SKalle Valo 2904e705c121SKalle Valo cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 2905e705c121SKalle Valo 2906e705c121SKalle Valo /* 2907e705c121SKalle Valo * Change the PHY context configuration as it is currently referenced 2908e705c121SKalle Valo * only by the P2P Device MAC 2909e705c121SKalle Valo */ 2910e705c121SKalle Valo if (mvmvif->phy_ctxt->ref == 1) { 2911e705c121SKalle Valo ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, 2912e705c121SKalle Valo &chandef, 1, 1); 2913e705c121SKalle Valo if (ret) 2914e705c121SKalle Valo goto out_unlock; 2915e705c121SKalle Valo } else { 2916e705c121SKalle Valo /* 2917e705c121SKalle Valo * The PHY context is shared with other MACs. Need to remove the 2918e705c121SKalle Valo * P2P Device from the binding, allocate an new PHY context and 2919e705c121SKalle Valo * create a new binding 2920e705c121SKalle Valo */ 2921e705c121SKalle Valo phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 2922e705c121SKalle Valo if (!phy_ctxt) { 2923e705c121SKalle Valo ret = -ENOSPC; 2924e705c121SKalle Valo goto out_unlock; 2925e705c121SKalle Valo } 2926e705c121SKalle Valo 2927e705c121SKalle Valo ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 2928e705c121SKalle Valo 1, 1); 2929e705c121SKalle Valo if (ret) { 2930e705c121SKalle Valo IWL_ERR(mvm, "Failed to change PHY context\n"); 2931e705c121SKalle Valo goto out_unlock; 2932e705c121SKalle Valo } 2933e705c121SKalle Valo 2934e705c121SKalle Valo /* Unbind the P2P_DEVICE from the current PHY context */ 2935e705c121SKalle Valo ret = iwl_mvm_binding_remove_vif(mvm, vif); 2936e705c121SKalle Valo if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 2937e705c121SKalle Valo goto out_unlock; 2938e705c121SKalle Valo 2939e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 2940e705c121SKalle Valo 2941e705c121SKalle Valo /* Bind the P2P_DEVICE to the new allocated PHY context */ 2942e705c121SKalle Valo mvmvif->phy_ctxt = phy_ctxt; 2943e705c121SKalle Valo 2944e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 2945e705c121SKalle Valo if (WARN(ret, "Failed binding P2P_DEVICE\n")) 2946e705c121SKalle Valo goto out_unlock; 2947e705c121SKalle Valo 2948e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 2949e705c121SKalle Valo } 2950e705c121SKalle Valo 2951e705c121SKalle Valo schedule_time_event: 2952e705c121SKalle Valo /* Schedule the time events */ 2953e705c121SKalle Valo ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 2954e705c121SKalle Valo 2955e705c121SKalle Valo out_unlock: 2956e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2957e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "leave\n"); 2958e705c121SKalle Valo return ret; 2959e705c121SKalle Valo } 2960e705c121SKalle Valo 2961e705c121SKalle Valo static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) 2962e705c121SKalle Valo { 2963e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2964e705c121SKalle Valo 2965e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "enter\n"); 2966e705c121SKalle Valo 2967e705c121SKalle Valo mutex_lock(&mvm->mutex); 2968e705c121SKalle Valo iwl_mvm_stop_roc(mvm); 2969e705c121SKalle Valo mutex_unlock(&mvm->mutex); 2970e705c121SKalle Valo 2971e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "leave\n"); 2972e705c121SKalle Valo return 0; 2973e705c121SKalle Valo } 2974e705c121SKalle Valo 2975e705c121SKalle Valo static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 2976e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 2977e705c121SKalle Valo { 2978e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 2979e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt; 2980e705c121SKalle Valo int ret; 2981e705c121SKalle Valo 2982e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 2983e705c121SKalle Valo 2984e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 2985e705c121SKalle Valo 2986e705c121SKalle Valo phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 2987e705c121SKalle Valo if (!phy_ctxt) { 2988e705c121SKalle Valo ret = -ENOSPC; 2989e705c121SKalle Valo goto out; 2990e705c121SKalle Valo } 2991e705c121SKalle Valo 2992e705c121SKalle Valo ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, 2993e705c121SKalle Valo ctx->rx_chains_static, 2994e705c121SKalle Valo ctx->rx_chains_dynamic); 2995e705c121SKalle Valo if (ret) { 2996e705c121SKalle Valo IWL_ERR(mvm, "Failed to add PHY context\n"); 2997e705c121SKalle Valo goto out; 2998e705c121SKalle Valo } 2999e705c121SKalle Valo 3000e705c121SKalle Valo iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 3001e705c121SKalle Valo *phy_ctxt_id = phy_ctxt->id; 3002e705c121SKalle Valo out: 3003e705c121SKalle Valo return ret; 3004e705c121SKalle Valo } 3005e705c121SKalle Valo 3006e705c121SKalle Valo static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 3007e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3008e705c121SKalle Valo { 3009e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3010e705c121SKalle Valo int ret; 3011e705c121SKalle Valo 3012e705c121SKalle Valo mutex_lock(&mvm->mutex); 3013e705c121SKalle Valo ret = __iwl_mvm_add_chanctx(mvm, ctx); 3014e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3015e705c121SKalle Valo 3016e705c121SKalle Valo return ret; 3017e705c121SKalle Valo } 3018e705c121SKalle Valo 3019e705c121SKalle Valo static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 3020e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3021e705c121SKalle Valo { 3022e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3023e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3024e705c121SKalle Valo 3025e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3026e705c121SKalle Valo 3027e705c121SKalle Valo iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 3028e705c121SKalle Valo } 3029e705c121SKalle Valo 3030e705c121SKalle Valo static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 3031e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3032e705c121SKalle Valo { 3033e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3034e705c121SKalle Valo 3035e705c121SKalle Valo mutex_lock(&mvm->mutex); 3036e705c121SKalle Valo __iwl_mvm_remove_chanctx(mvm, ctx); 3037e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3038e705c121SKalle Valo } 3039e705c121SKalle Valo 3040e705c121SKalle Valo static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 3041e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx, 3042e705c121SKalle Valo u32 changed) 3043e705c121SKalle Valo { 3044e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3045e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3046e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3047e705c121SKalle Valo 3048e705c121SKalle Valo if (WARN_ONCE((phy_ctxt->ref > 1) && 3049e705c121SKalle Valo (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 3050e705c121SKalle Valo IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 3051e705c121SKalle Valo IEEE80211_CHANCTX_CHANGE_RADAR | 3052e705c121SKalle Valo IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 3053e705c121SKalle Valo "Cannot change PHY. Ref=%d, changed=0x%X\n", 3054e705c121SKalle Valo phy_ctxt->ref, changed)) 3055e705c121SKalle Valo return; 3056e705c121SKalle Valo 3057e705c121SKalle Valo mutex_lock(&mvm->mutex); 3058e705c121SKalle Valo iwl_mvm_bt_coex_vif_change(mvm); 3059e705c121SKalle Valo iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, 3060e705c121SKalle Valo ctx->rx_chains_static, 3061e705c121SKalle Valo ctx->rx_chains_dynamic); 3062e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3063e705c121SKalle Valo } 3064e705c121SKalle Valo 3065e705c121SKalle Valo static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 3066e705c121SKalle Valo struct ieee80211_vif *vif, 3067e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx, 3068e705c121SKalle Valo bool switching_chanctx) 3069e705c121SKalle Valo { 3070e705c121SKalle Valo u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3071e705c121SKalle Valo struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3072e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3073e705c121SKalle Valo int ret; 3074e705c121SKalle Valo 3075e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3076e705c121SKalle Valo 3077e705c121SKalle Valo mvmvif->phy_ctxt = phy_ctxt; 3078e705c121SKalle Valo 3079e705c121SKalle Valo switch (vif->type) { 3080e705c121SKalle Valo case NL80211_IFTYPE_AP: 3081e705c121SKalle Valo /* only needed if we're switching chanctx (i.e. during CSA) */ 3082e705c121SKalle Valo if (switching_chanctx) { 3083e705c121SKalle Valo mvmvif->ap_ibss_active = true; 3084e705c121SKalle Valo break; 3085e705c121SKalle Valo } 3086e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 3087e705c121SKalle Valo /* 3088e705c121SKalle Valo * The AP binding flow is handled as part of the start_ap flow 3089e705c121SKalle Valo * (in bss_info_changed), similarly for IBSS. 3090e705c121SKalle Valo */ 3091e705c121SKalle Valo ret = 0; 3092e705c121SKalle Valo goto out; 3093e705c121SKalle Valo case NL80211_IFTYPE_STATION: 3094e705c121SKalle Valo break; 3095e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 3096e705c121SKalle Valo /* always disable PS when a monitor interface is active */ 3097e705c121SKalle Valo mvmvif->ps_disabled = true; 3098e705c121SKalle Valo break; 3099e705c121SKalle Valo default: 3100e705c121SKalle Valo ret = -EINVAL; 3101e705c121SKalle Valo goto out; 3102e705c121SKalle Valo } 3103e705c121SKalle Valo 3104e705c121SKalle Valo ret = iwl_mvm_binding_add_vif(mvm, vif); 3105e705c121SKalle Valo if (ret) 3106e705c121SKalle Valo goto out; 3107e705c121SKalle Valo 3108e705c121SKalle Valo /* 3109e705c121SKalle Valo * Power state must be updated before quotas, 3110e705c121SKalle Valo * otherwise fw will complain. 3111e705c121SKalle Valo */ 3112e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 3113e705c121SKalle Valo 3114e705c121SKalle Valo /* Setting the quota at this stage is only required for monitor 3115e705c121SKalle Valo * interfaces. For the other types, the bss_info changed flow 3116e705c121SKalle Valo * will handle quota settings. 3117e705c121SKalle Valo */ 3118e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_MONITOR) { 3119e705c121SKalle Valo mvmvif->monitor_active = true; 3120e705c121SKalle Valo ret = iwl_mvm_update_quotas(mvm, false, NULL); 3121e705c121SKalle Valo if (ret) 3122e705c121SKalle Valo goto out_remove_binding; 3123e705c121SKalle Valo } 3124e705c121SKalle Valo 3125e705c121SKalle Valo /* Handle binding during CSA */ 3126e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_AP) { 3127e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, NULL); 3128e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3129e705c121SKalle Valo } 3130e705c121SKalle Valo 3131e705c121SKalle Valo if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { 3132e705c121SKalle Valo u32 duration = 2 * vif->bss_conf.beacon_int; 3133e705c121SKalle Valo 3134e705c121SKalle Valo /* iwl_mvm_protect_session() reads directly from the 3135e705c121SKalle Valo * device (the system time), so make sure it is 3136e705c121SKalle Valo * available. 3137e705c121SKalle Valo */ 3138e705c121SKalle Valo ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA); 3139e705c121SKalle Valo if (ret) 3140e705c121SKalle Valo goto out_remove_binding; 3141e705c121SKalle Valo 3142e705c121SKalle Valo /* Protect the session to make sure we hear the first 3143e705c121SKalle Valo * beacon on the new channel. 3144e705c121SKalle Valo */ 3145e705c121SKalle Valo iwl_mvm_protect_session(mvm, vif, duration, duration, 3146e705c121SKalle Valo vif->bss_conf.beacon_int / 2, 3147e705c121SKalle Valo true); 3148e705c121SKalle Valo 3149e705c121SKalle Valo iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA); 3150e705c121SKalle Valo 3151e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, NULL); 3152e705c121SKalle Valo } 3153e705c121SKalle Valo 3154e705c121SKalle Valo goto out; 3155e705c121SKalle Valo 3156e705c121SKalle Valo out_remove_binding: 3157e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 3158e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 3159e705c121SKalle Valo out: 3160e705c121SKalle Valo if (ret) 3161e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 3162e705c121SKalle Valo return ret; 3163e705c121SKalle Valo } 3164e705c121SKalle Valo static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 3165e705c121SKalle Valo struct ieee80211_vif *vif, 3166e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3167e705c121SKalle Valo { 3168e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3169e705c121SKalle Valo int ret; 3170e705c121SKalle Valo 3171e705c121SKalle Valo mutex_lock(&mvm->mutex); 3172e705c121SKalle Valo ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); 3173e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3174e705c121SKalle Valo 3175e705c121SKalle Valo return ret; 3176e705c121SKalle Valo } 3177e705c121SKalle Valo 3178e705c121SKalle Valo static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 3179e705c121SKalle Valo struct ieee80211_vif *vif, 3180e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx, 3181e705c121SKalle Valo bool switching_chanctx) 3182e705c121SKalle Valo { 3183e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3184e705c121SKalle Valo struct ieee80211_vif *disabled_vif = NULL; 3185e705c121SKalle Valo 3186e705c121SKalle Valo lockdep_assert_held(&mvm->mutex); 3187e705c121SKalle Valo 3188e705c121SKalle Valo iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); 3189e705c121SKalle Valo 3190e705c121SKalle Valo switch (vif->type) { 3191e705c121SKalle Valo case NL80211_IFTYPE_ADHOC: 3192e705c121SKalle Valo goto out; 3193e705c121SKalle Valo case NL80211_IFTYPE_MONITOR: 3194e705c121SKalle Valo mvmvif->monitor_active = false; 3195e705c121SKalle Valo mvmvif->ps_disabled = false; 3196e705c121SKalle Valo break; 3197e705c121SKalle Valo case NL80211_IFTYPE_AP: 3198e705c121SKalle Valo /* This part is triggered only during CSA */ 3199e705c121SKalle Valo if (!switching_chanctx || !mvmvif->ap_ibss_active) 3200e705c121SKalle Valo goto out; 3201e705c121SKalle Valo 3202e705c121SKalle Valo mvmvif->csa_countdown = false; 3203e705c121SKalle Valo 3204e705c121SKalle Valo /* Set CS bit on all the stations */ 3205e705c121SKalle Valo iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 3206e705c121SKalle Valo 3207e705c121SKalle Valo /* Save blocked iface, the timeout is set on the next beacon */ 3208e705c121SKalle Valo rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 3209e705c121SKalle Valo 3210e705c121SKalle Valo mvmvif->ap_ibss_active = false; 3211e705c121SKalle Valo break; 3212e705c121SKalle Valo case NL80211_IFTYPE_STATION: 3213e705c121SKalle Valo if (!switching_chanctx) 3214e705c121SKalle Valo break; 3215e705c121SKalle Valo 3216e705c121SKalle Valo disabled_vif = vif; 3217e705c121SKalle Valo 3218e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 3219e705c121SKalle Valo break; 3220e705c121SKalle Valo default: 3221e705c121SKalle Valo break; 3222e705c121SKalle Valo } 3223e705c121SKalle Valo 3224e705c121SKalle Valo iwl_mvm_update_quotas(mvm, false, disabled_vif); 3225e705c121SKalle Valo iwl_mvm_binding_remove_vif(mvm, vif); 3226e705c121SKalle Valo 3227e705c121SKalle Valo out: 3228e705c121SKalle Valo mvmvif->phy_ctxt = NULL; 3229e705c121SKalle Valo iwl_mvm_power_update_mac(mvm); 3230e705c121SKalle Valo } 3231e705c121SKalle Valo 3232e705c121SKalle Valo static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 3233e705c121SKalle Valo struct ieee80211_vif *vif, 3234e705c121SKalle Valo struct ieee80211_chanctx_conf *ctx) 3235e705c121SKalle Valo { 3236e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3237e705c121SKalle Valo 3238e705c121SKalle Valo mutex_lock(&mvm->mutex); 3239e705c121SKalle Valo __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); 3240e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3241e705c121SKalle Valo } 3242e705c121SKalle Valo 3243e705c121SKalle Valo static int 3244e705c121SKalle Valo iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 3245e705c121SKalle Valo struct ieee80211_vif_chanctx_switch *vifs) 3246e705c121SKalle Valo { 3247e705c121SKalle Valo int ret; 3248e705c121SKalle Valo 3249e705c121SKalle Valo mutex_lock(&mvm->mutex); 3250e705c121SKalle Valo __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 3251e705c121SKalle Valo __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 3252e705c121SKalle Valo 3253e705c121SKalle Valo ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 3254e705c121SKalle Valo if (ret) { 3255e705c121SKalle Valo IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 3256e705c121SKalle Valo goto out_reassign; 3257e705c121SKalle Valo } 3258e705c121SKalle Valo 3259e705c121SKalle Valo ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 3260e705c121SKalle Valo true); 3261e705c121SKalle Valo if (ret) { 3262e705c121SKalle Valo IWL_ERR(mvm, 3263e705c121SKalle Valo "failed to assign new_ctx during channel switch\n"); 3264e705c121SKalle Valo goto out_remove; 3265e705c121SKalle Valo } 3266e705c121SKalle Valo 3267e705c121SKalle Valo /* we don't support TDLS during DCM - can be caused by channel switch */ 3268e705c121SKalle Valo if (iwl_mvm_phy_ctx_count(mvm) > 1) 3269e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 3270e705c121SKalle Valo 3271e705c121SKalle Valo goto out; 3272e705c121SKalle Valo 3273e705c121SKalle Valo out_remove: 3274e705c121SKalle Valo __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 3275e705c121SKalle Valo 3276e705c121SKalle Valo out_reassign: 3277e705c121SKalle Valo if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 3278e705c121SKalle Valo IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 3279e705c121SKalle Valo goto out_restart; 3280e705c121SKalle Valo } 3281e705c121SKalle Valo 3282e705c121SKalle Valo if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 3283e705c121SKalle Valo true)) { 3284e705c121SKalle Valo IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 3285e705c121SKalle Valo goto out_restart; 3286e705c121SKalle Valo } 3287e705c121SKalle Valo 3288e705c121SKalle Valo goto out; 3289e705c121SKalle Valo 3290e705c121SKalle Valo out_restart: 3291e705c121SKalle Valo /* things keep failing, better restart the hw */ 3292e705c121SKalle Valo iwl_mvm_nic_restart(mvm, false); 3293e705c121SKalle Valo 3294e705c121SKalle Valo out: 3295e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3296e705c121SKalle Valo 3297e705c121SKalle Valo return ret; 3298e705c121SKalle Valo } 3299e705c121SKalle Valo 3300e705c121SKalle Valo static int 3301e705c121SKalle Valo iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 3302e705c121SKalle Valo struct ieee80211_vif_chanctx_switch *vifs) 3303e705c121SKalle Valo { 3304e705c121SKalle Valo int ret; 3305e705c121SKalle Valo 3306e705c121SKalle Valo mutex_lock(&mvm->mutex); 3307e705c121SKalle Valo __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 3308e705c121SKalle Valo 3309e705c121SKalle Valo ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 3310e705c121SKalle Valo true); 3311e705c121SKalle Valo if (ret) { 3312e705c121SKalle Valo IWL_ERR(mvm, 3313e705c121SKalle Valo "failed to assign new_ctx during channel switch\n"); 3314e705c121SKalle Valo goto out_reassign; 3315e705c121SKalle Valo } 3316e705c121SKalle Valo 3317e705c121SKalle Valo goto out; 3318e705c121SKalle Valo 3319e705c121SKalle Valo out_reassign: 3320e705c121SKalle Valo if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 3321e705c121SKalle Valo true)) { 3322e705c121SKalle Valo IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 3323e705c121SKalle Valo goto out_restart; 3324e705c121SKalle Valo } 3325e705c121SKalle Valo 3326e705c121SKalle Valo goto out; 3327e705c121SKalle Valo 3328e705c121SKalle Valo out_restart: 3329e705c121SKalle Valo /* things keep failing, better restart the hw */ 3330e705c121SKalle Valo iwl_mvm_nic_restart(mvm, false); 3331e705c121SKalle Valo 3332e705c121SKalle Valo out: 3333e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3334e705c121SKalle Valo 3335e705c121SKalle Valo return ret; 3336e705c121SKalle Valo } 3337e705c121SKalle Valo 3338e705c121SKalle Valo static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 3339e705c121SKalle Valo struct ieee80211_vif_chanctx_switch *vifs, 3340e705c121SKalle Valo int n_vifs, 3341e705c121SKalle Valo enum ieee80211_chanctx_switch_mode mode) 3342e705c121SKalle Valo { 3343e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3344e705c121SKalle Valo int ret; 3345e705c121SKalle Valo 3346e705c121SKalle Valo /* we only support a single-vif right now */ 3347e705c121SKalle Valo if (n_vifs > 1) 3348e705c121SKalle Valo return -EOPNOTSUPP; 3349e705c121SKalle Valo 3350e705c121SKalle Valo switch (mode) { 3351e705c121SKalle Valo case CHANCTX_SWMODE_SWAP_CONTEXTS: 3352e705c121SKalle Valo ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); 3353e705c121SKalle Valo break; 3354e705c121SKalle Valo case CHANCTX_SWMODE_REASSIGN_VIF: 3355e705c121SKalle Valo ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); 3356e705c121SKalle Valo break; 3357e705c121SKalle Valo default: 3358e705c121SKalle Valo ret = -EOPNOTSUPP; 3359e705c121SKalle Valo break; 3360e705c121SKalle Valo } 3361e705c121SKalle Valo 3362e705c121SKalle Valo return ret; 3363e705c121SKalle Valo } 3364e705c121SKalle Valo 3365e705c121SKalle Valo static int iwl_mvm_set_tim(struct ieee80211_hw *hw, 3366e705c121SKalle Valo struct ieee80211_sta *sta, 3367e705c121SKalle Valo bool set) 3368e705c121SKalle Valo { 3369e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3370e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3371e705c121SKalle Valo 3372e705c121SKalle Valo if (!mvm_sta || !mvm_sta->vif) { 3373e705c121SKalle Valo IWL_ERR(mvm, "Station is not associated to a vif\n"); 3374e705c121SKalle Valo return -EINVAL; 3375e705c121SKalle Valo } 3376e705c121SKalle Valo 3377e705c121SKalle Valo return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); 3378e705c121SKalle Valo } 3379e705c121SKalle Valo 3380e705c121SKalle Valo #ifdef CONFIG_NL80211_TESTMODE 3381e705c121SKalle Valo static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 3382e705c121SKalle Valo [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 3383e705c121SKalle Valo [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 3384e705c121SKalle Valo [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 3385e705c121SKalle Valo }; 3386e705c121SKalle Valo 3387e705c121SKalle Valo static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 3388e705c121SKalle Valo struct ieee80211_vif *vif, 3389e705c121SKalle Valo void *data, int len) 3390e705c121SKalle Valo { 3391e705c121SKalle Valo struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 3392e705c121SKalle Valo int err; 3393e705c121SKalle Valo u32 noa_duration; 3394e705c121SKalle Valo 3395e705c121SKalle Valo err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy); 3396e705c121SKalle Valo if (err) 3397e705c121SKalle Valo return err; 3398e705c121SKalle Valo 3399e705c121SKalle Valo if (!tb[IWL_MVM_TM_ATTR_CMD]) 3400e705c121SKalle Valo return -EINVAL; 3401e705c121SKalle Valo 3402e705c121SKalle Valo switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 3403e705c121SKalle Valo case IWL_MVM_TM_CMD_SET_NOA: 3404e705c121SKalle Valo if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 3405e705c121SKalle Valo !vif->bss_conf.enable_beacon || 3406e705c121SKalle Valo !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 3407e705c121SKalle Valo return -EINVAL; 3408e705c121SKalle Valo 3409e705c121SKalle Valo noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 3410e705c121SKalle Valo if (noa_duration >= vif->bss_conf.beacon_int) 3411e705c121SKalle Valo return -EINVAL; 3412e705c121SKalle Valo 3413e705c121SKalle Valo mvm->noa_duration = noa_duration; 3414e705c121SKalle Valo mvm->noa_vif = vif; 3415e705c121SKalle Valo 3416e705c121SKalle Valo return iwl_mvm_update_quotas(mvm, false, NULL); 3417e705c121SKalle Valo case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 3418e705c121SKalle Valo /* must be associated client vif - ignore authorized */ 3419e705c121SKalle Valo if (!vif || vif->type != NL80211_IFTYPE_STATION || 3420e705c121SKalle Valo !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || 3421e705c121SKalle Valo !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 3422e705c121SKalle Valo return -EINVAL; 3423e705c121SKalle Valo 3424e705c121SKalle Valo if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 3425e705c121SKalle Valo return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 3426e705c121SKalle Valo return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3427e705c121SKalle Valo } 3428e705c121SKalle Valo 3429e705c121SKalle Valo return -EOPNOTSUPP; 3430e705c121SKalle Valo } 3431e705c121SKalle Valo 3432e705c121SKalle Valo static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 3433e705c121SKalle Valo struct ieee80211_vif *vif, 3434e705c121SKalle Valo void *data, int len) 3435e705c121SKalle Valo { 3436e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3437e705c121SKalle Valo int err; 3438e705c121SKalle Valo 3439e705c121SKalle Valo mutex_lock(&mvm->mutex); 3440e705c121SKalle Valo err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 3441e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3442e705c121SKalle Valo 3443e705c121SKalle Valo return err; 3444e705c121SKalle Valo } 3445e705c121SKalle Valo #endif 3446e705c121SKalle Valo 3447e705c121SKalle Valo static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, 3448e705c121SKalle Valo struct ieee80211_vif *vif, 3449e705c121SKalle Valo struct ieee80211_channel_switch *chsw) 3450e705c121SKalle Valo { 3451e705c121SKalle Valo /* By implementing this operation, we prevent mac80211 from 3452e705c121SKalle Valo * starting its own channel switch timer, so that we can call 3453e705c121SKalle Valo * ieee80211_chswitch_done() ourselves at the right time 3454e705c121SKalle Valo * (which is when the absence time event starts). 3455e705c121SKalle Valo */ 3456e705c121SKalle Valo 3457e705c121SKalle Valo IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 3458e705c121SKalle Valo "dummy channel switch op\n"); 3459e705c121SKalle Valo } 3460e705c121SKalle Valo 3461e705c121SKalle Valo static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 3462e705c121SKalle Valo struct ieee80211_vif *vif, 3463e705c121SKalle Valo struct ieee80211_channel_switch *chsw) 3464e705c121SKalle Valo { 3465e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3466e705c121SKalle Valo struct ieee80211_vif *csa_vif; 3467e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3468e705c121SKalle Valo u32 apply_time; 3469e705c121SKalle Valo int ret; 3470e705c121SKalle Valo 3471e705c121SKalle Valo mutex_lock(&mvm->mutex); 3472e705c121SKalle Valo 3473e705c121SKalle Valo mvmvif->csa_failed = false; 3474e705c121SKalle Valo 3475e705c121SKalle Valo IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 3476e705c121SKalle Valo chsw->chandef.center_freq1); 3477e705c121SKalle Valo 3478e705c121SKalle Valo iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH); 3479e705c121SKalle Valo 3480e705c121SKalle Valo switch (vif->type) { 3481e705c121SKalle Valo case NL80211_IFTYPE_AP: 3482e705c121SKalle Valo csa_vif = 3483e705c121SKalle Valo rcu_dereference_protected(mvm->csa_vif, 3484e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3485e705c121SKalle Valo if (WARN_ONCE(csa_vif && csa_vif->csa_active, 3486e705c121SKalle Valo "Another CSA is already in progress")) { 3487e705c121SKalle Valo ret = -EBUSY; 3488e705c121SKalle Valo goto out_unlock; 3489e705c121SKalle Valo } 3490e705c121SKalle Valo 3491e705c121SKalle Valo rcu_assign_pointer(mvm->csa_vif, vif); 3492e705c121SKalle Valo 3493e705c121SKalle Valo if (WARN_ONCE(mvmvif->csa_countdown, 3494e705c121SKalle Valo "Previous CSA countdown didn't complete")) { 3495e705c121SKalle Valo ret = -EBUSY; 3496e705c121SKalle Valo goto out_unlock; 3497e705c121SKalle Valo } 3498e705c121SKalle Valo 3499e705c121SKalle Valo break; 3500e705c121SKalle Valo case NL80211_IFTYPE_STATION: 3501e705c121SKalle Valo /* Schedule the time event to a bit before beacon 1, 3502e705c121SKalle Valo * to make sure we're in the new channel when the 3503e705c121SKalle Valo * GO/AP arrives. 3504e705c121SKalle Valo */ 3505e705c121SKalle Valo apply_time = chsw->device_timestamp + 3506e705c121SKalle Valo ((vif->bss_conf.beacon_int * (chsw->count - 1) - 3507e705c121SKalle Valo IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 3508e705c121SKalle Valo 3509e705c121SKalle Valo if (chsw->block_tx) 3510e705c121SKalle Valo iwl_mvm_csa_client_absent(mvm, vif); 3511e705c121SKalle Valo 3512e705c121SKalle Valo iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 3513e705c121SKalle Valo apply_time); 3514e705c121SKalle Valo if (mvmvif->bf_data.bf_enabled) { 3515e705c121SKalle Valo ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3516e705c121SKalle Valo if (ret) 3517e705c121SKalle Valo goto out_unlock; 3518e705c121SKalle Valo } 3519e705c121SKalle Valo 3520e705c121SKalle Valo break; 3521e705c121SKalle Valo default: 3522e705c121SKalle Valo break; 3523e705c121SKalle Valo } 3524e705c121SKalle Valo 3525e705c121SKalle Valo mvmvif->ps_disabled = true; 3526e705c121SKalle Valo 3527e705c121SKalle Valo ret = iwl_mvm_power_update_ps(mvm); 3528e705c121SKalle Valo if (ret) 3529e705c121SKalle Valo goto out_unlock; 3530e705c121SKalle Valo 3531e705c121SKalle Valo /* we won't be on this channel any longer */ 3532e705c121SKalle Valo iwl_mvm_teardown_tdls_peers(mvm); 3533e705c121SKalle Valo 3534e705c121SKalle Valo out_unlock: 3535e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3536e705c121SKalle Valo 3537e705c121SKalle Valo return ret; 3538e705c121SKalle Valo } 3539e705c121SKalle Valo 3540e705c121SKalle Valo static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 3541e705c121SKalle Valo struct ieee80211_vif *vif) 3542e705c121SKalle Valo { 3543e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3544e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3545e705c121SKalle Valo int ret; 3546e705c121SKalle Valo 3547e705c121SKalle Valo mutex_lock(&mvm->mutex); 3548e705c121SKalle Valo 3549e705c121SKalle Valo if (mvmvif->csa_failed) { 3550e705c121SKalle Valo mvmvif->csa_failed = false; 3551e705c121SKalle Valo ret = -EIO; 3552e705c121SKalle Valo goto out_unlock; 3553e705c121SKalle Valo } 3554e705c121SKalle Valo 3555e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) { 3556e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 3557e705c121SKalle Valo 3558e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 3559e705c121SKalle Valo mvmvif->ap_sta_id); 3560e705c121SKalle Valo 3561e705c121SKalle Valo if (WARN_ON(!mvmsta)) { 3562e705c121SKalle Valo ret = -EIO; 3563e705c121SKalle Valo goto out_unlock; 3564e705c121SKalle Valo } 3565e705c121SKalle Valo 3566e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 3567e705c121SKalle Valo 3568e705c121SKalle Valo iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3569e705c121SKalle Valo 3570e705c121SKalle Valo ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 3571e705c121SKalle Valo if (ret) 3572e705c121SKalle Valo goto out_unlock; 3573e705c121SKalle Valo 3574e705c121SKalle Valo iwl_mvm_stop_session_protection(mvm, vif); 3575e705c121SKalle Valo } 3576e705c121SKalle Valo 3577e705c121SKalle Valo mvmvif->ps_disabled = false; 3578e705c121SKalle Valo 3579e705c121SKalle Valo ret = iwl_mvm_power_update_ps(mvm); 3580e705c121SKalle Valo 3581e705c121SKalle Valo out_unlock: 3582e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3583e705c121SKalle Valo 3584e705c121SKalle Valo return ret; 3585e705c121SKalle Valo } 3586e705c121SKalle Valo 3587e705c121SKalle Valo static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, 3588e705c121SKalle Valo struct ieee80211_vif *vif, u32 queues, bool drop) 3589e705c121SKalle Valo { 3590e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3591e705c121SKalle Valo struct iwl_mvm_vif *mvmvif; 3592e705c121SKalle Valo struct iwl_mvm_sta *mvmsta; 3593e705c121SKalle Valo struct ieee80211_sta *sta; 3594e705c121SKalle Valo int i; 3595e705c121SKalle Valo u32 msk = 0; 3596e705c121SKalle Valo 3597e705c121SKalle Valo if (!vif || vif->type != NL80211_IFTYPE_STATION) 3598e705c121SKalle Valo return; 3599e705c121SKalle Valo 3600e705c121SKalle Valo mutex_lock(&mvm->mutex); 3601e705c121SKalle Valo mvmvif = iwl_mvm_vif_from_mac80211(vif); 3602e705c121SKalle Valo 3603e705c121SKalle Valo /* flush the AP-station and all TDLS peers */ 3604e705c121SKalle Valo for (i = 0; i < IWL_MVM_STATION_COUNT; i++) { 3605e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 3606e705c121SKalle Valo lockdep_is_held(&mvm->mutex)); 3607e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) 3608e705c121SKalle Valo continue; 3609e705c121SKalle Valo 3610e705c121SKalle Valo mvmsta = iwl_mvm_sta_from_mac80211(sta); 3611e705c121SKalle Valo if (mvmsta->vif != vif) 3612e705c121SKalle Valo continue; 3613e705c121SKalle Valo 3614e705c121SKalle Valo /* make sure only TDLS peers or the AP are flushed */ 3615e705c121SKalle Valo WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); 3616e705c121SKalle Valo 3617e705c121SKalle Valo msk |= mvmsta->tfd_queue_msk; 3618e705c121SKalle Valo } 3619e705c121SKalle Valo 3620e705c121SKalle Valo if (drop) { 3621e705c121SKalle Valo if (iwl_mvm_flush_tx_path(mvm, msk, 0)) 3622e705c121SKalle Valo IWL_ERR(mvm, "flush request fail\n"); 3623e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3624e705c121SKalle Valo } else { 3625e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3626e705c121SKalle Valo 3627e705c121SKalle Valo /* this can take a while, and we may need/want other operations 3628e705c121SKalle Valo * to succeed while doing this, so do it without the mutex held 3629e705c121SKalle Valo */ 3630e705c121SKalle Valo iwl_trans_wait_tx_queue_empty(mvm->trans, msk); 3631e705c121SKalle Valo } 3632e705c121SKalle Valo } 3633e705c121SKalle Valo 3634e705c121SKalle Valo static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 3635e705c121SKalle Valo struct survey_info *survey) 3636e705c121SKalle Valo { 3637e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3638e705c121SKalle Valo int ret; 3639e705c121SKalle Valo 3640e705c121SKalle Valo memset(survey, 0, sizeof(*survey)); 3641e705c121SKalle Valo 3642e705c121SKalle Valo /* only support global statistics right now */ 3643e705c121SKalle Valo if (idx != 0) 3644e705c121SKalle Valo return -ENOENT; 3645e705c121SKalle Valo 3646e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 3647e705c121SKalle Valo IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 3648e705c121SKalle Valo return -ENOENT; 3649e705c121SKalle Valo 3650e705c121SKalle Valo mutex_lock(&mvm->mutex); 3651e705c121SKalle Valo 3652e705c121SKalle Valo if (mvm->ucode_loaded) { 3653e705c121SKalle Valo ret = iwl_mvm_request_statistics(mvm, false); 3654e705c121SKalle Valo if (ret) 3655e705c121SKalle Valo goto out; 3656e705c121SKalle Valo } 3657e705c121SKalle Valo 3658e705c121SKalle Valo survey->filled = SURVEY_INFO_TIME | 3659e705c121SKalle Valo SURVEY_INFO_TIME_RX | 3660e705c121SKalle Valo SURVEY_INFO_TIME_TX | 3661e705c121SKalle Valo SURVEY_INFO_TIME_SCAN; 3662e705c121SKalle Valo survey->time = mvm->accu_radio_stats.on_time_rf + 3663e705c121SKalle Valo mvm->radio_stats.on_time_rf; 3664e705c121SKalle Valo do_div(survey->time, USEC_PER_MSEC); 3665e705c121SKalle Valo 3666e705c121SKalle Valo survey->time_rx = mvm->accu_radio_stats.rx_time + 3667e705c121SKalle Valo mvm->radio_stats.rx_time; 3668e705c121SKalle Valo do_div(survey->time_rx, USEC_PER_MSEC); 3669e705c121SKalle Valo 3670e705c121SKalle Valo survey->time_tx = mvm->accu_radio_stats.tx_time + 3671e705c121SKalle Valo mvm->radio_stats.tx_time; 3672e705c121SKalle Valo do_div(survey->time_tx, USEC_PER_MSEC); 3673e705c121SKalle Valo 3674e705c121SKalle Valo survey->time_scan = mvm->accu_radio_stats.on_time_scan + 3675e705c121SKalle Valo mvm->radio_stats.on_time_scan; 3676e705c121SKalle Valo do_div(survey->time_scan, USEC_PER_MSEC); 3677e705c121SKalle Valo 3678e705c121SKalle Valo ret = 0; 3679e705c121SKalle Valo out: 3680e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3681e705c121SKalle Valo return ret; 3682e705c121SKalle Valo } 3683e705c121SKalle Valo 3684e705c121SKalle Valo static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 3685e705c121SKalle Valo struct ieee80211_vif *vif, 3686e705c121SKalle Valo struct ieee80211_sta *sta, 3687e705c121SKalle Valo struct station_info *sinfo) 3688e705c121SKalle Valo { 3689e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3690e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3691e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3692e705c121SKalle Valo 3693e705c121SKalle Valo if (fw_has_capa(&mvm->fw->ucode_capa, 3694e705c121SKalle Valo IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 3695e705c121SKalle Valo return; 3696e705c121SKalle Valo 3697e705c121SKalle Valo /* if beacon filtering isn't on mac80211 does it anyway */ 3698e705c121SKalle Valo if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 3699e705c121SKalle Valo return; 3700e705c121SKalle Valo 3701e705c121SKalle Valo if (!vif->bss_conf.assoc) 3702e705c121SKalle Valo return; 3703e705c121SKalle Valo 3704e705c121SKalle Valo mutex_lock(&mvm->mutex); 3705e705c121SKalle Valo 3706e705c121SKalle Valo if (mvmvif->ap_sta_id != mvmsta->sta_id) 3707e705c121SKalle Valo goto unlock; 3708e705c121SKalle Valo 3709e705c121SKalle Valo if (iwl_mvm_request_statistics(mvm, false)) 3710e705c121SKalle Valo goto unlock; 3711e705c121SKalle Valo 3712e705c121SKalle Valo sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + 3713e705c121SKalle Valo mvmvif->beacon_stats.accu_num_beacons; 3714e705c121SKalle Valo sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX); 3715e705c121SKalle Valo if (mvmvif->beacon_stats.avg_signal) { 3716e705c121SKalle Valo /* firmware only reports a value after RXing a few beacons */ 3717e705c121SKalle Valo sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; 3718e705c121SKalle Valo sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 3719e705c121SKalle Valo } 3720e705c121SKalle Valo unlock: 3721e705c121SKalle Valo mutex_unlock(&mvm->mutex); 3722e705c121SKalle Valo } 3723e705c121SKalle Valo 3724e705c121SKalle Valo static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 3725e705c121SKalle Valo struct ieee80211_vif *vif, 3726e705c121SKalle Valo const struct ieee80211_event *event) 3727e705c121SKalle Valo { 3728e705c121SKalle Valo #define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \ 3729e705c121SKalle Valo do { \ 3730e705c121SKalle Valo if ((_cnt) && --(_cnt)) \ 3731e705c121SKalle Valo break; \ 3732e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\ 3733e705c121SKalle Valo } while (0) 3734e705c121SKalle Valo 3735e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 3736e705c121SKalle Valo struct iwl_fw_dbg_trigger_mlme *trig_mlme; 3737e705c121SKalle Valo 3738e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME)) 3739e705c121SKalle Valo return; 3740e705c121SKalle Valo 3741e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME); 3742e705c121SKalle Valo trig_mlme = (void *)trig->data; 3743e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 3744e705c121SKalle Valo return; 3745e705c121SKalle Valo 3746e705c121SKalle Valo if (event->u.mlme.data == ASSOC_EVENT) { 3747e705c121SKalle Valo if (event->u.mlme.status == MLME_DENIED) 3748e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3749e705c121SKalle Valo trig_mlme->stop_assoc_denied, 3750e705c121SKalle Valo "DENIED ASSOC: reason %d", 3751e705c121SKalle Valo event->u.mlme.reason); 3752e705c121SKalle Valo else if (event->u.mlme.status == MLME_TIMEOUT) 3753e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3754e705c121SKalle Valo trig_mlme->stop_assoc_timeout, 3755e705c121SKalle Valo "ASSOC TIMEOUT"); 3756e705c121SKalle Valo } else if (event->u.mlme.data == AUTH_EVENT) { 3757e705c121SKalle Valo if (event->u.mlme.status == MLME_DENIED) 3758e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3759e705c121SKalle Valo trig_mlme->stop_auth_denied, 3760e705c121SKalle Valo "DENIED AUTH: reason %d", 3761e705c121SKalle Valo event->u.mlme.reason); 3762e705c121SKalle Valo else if (event->u.mlme.status == MLME_TIMEOUT) 3763e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3764e705c121SKalle Valo trig_mlme->stop_auth_timeout, 3765e705c121SKalle Valo "AUTH TIMEOUT"); 3766e705c121SKalle Valo } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 3767e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3768e705c121SKalle Valo trig_mlme->stop_rx_deauth, 3769e705c121SKalle Valo "DEAUTH RX %d", event->u.mlme.reason); 3770e705c121SKalle Valo } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 3771e705c121SKalle Valo CHECK_MLME_TRIGGER(mvm, trig, buf, 3772e705c121SKalle Valo trig_mlme->stop_tx_deauth, 3773e705c121SKalle Valo "DEAUTH TX %d", event->u.mlme.reason); 3774e705c121SKalle Valo } 3775e705c121SKalle Valo #undef CHECK_MLME_TRIGGER 3776e705c121SKalle Valo } 3777e705c121SKalle Valo 3778e705c121SKalle Valo static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 3779e705c121SKalle Valo struct ieee80211_vif *vif, 3780e705c121SKalle Valo const struct ieee80211_event *event) 3781e705c121SKalle Valo { 3782e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 3783e705c121SKalle Valo struct iwl_fw_dbg_trigger_ba *ba_trig; 3784e705c121SKalle Valo 3785e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) 3786e705c121SKalle Valo return; 3787e705c121SKalle Valo 3788e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); 3789e705c121SKalle Valo ba_trig = (void *)trig->data; 3790e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 3791e705c121SKalle Valo return; 3792e705c121SKalle Valo 3793e705c121SKalle Valo if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 3794e705c121SKalle Valo return; 3795e705c121SKalle Valo 3796e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(mvm, trig, 3797e705c121SKalle Valo "BAR received from %pM, tid %d, ssn %d", 3798e705c121SKalle Valo event->u.ba.sta->addr, event->u.ba.tid, 3799e705c121SKalle Valo event->u.ba.ssn); 3800e705c121SKalle Valo } 3801e705c121SKalle Valo 3802e705c121SKalle Valo static void 3803e705c121SKalle Valo iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm, 3804e705c121SKalle Valo struct ieee80211_vif *vif, 3805e705c121SKalle Valo const struct ieee80211_event *event) 3806e705c121SKalle Valo { 3807e705c121SKalle Valo struct iwl_fw_dbg_trigger_tlv *trig; 3808e705c121SKalle Valo struct iwl_fw_dbg_trigger_ba *ba_trig; 3809e705c121SKalle Valo 3810e705c121SKalle Valo if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) 3811e705c121SKalle Valo return; 3812e705c121SKalle Valo 3813e705c121SKalle Valo trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); 3814e705c121SKalle Valo ba_trig = (void *)trig->data; 3815e705c121SKalle Valo if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 3816e705c121SKalle Valo return; 3817e705c121SKalle Valo 3818e705c121SKalle Valo if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid))) 3819e705c121SKalle Valo return; 3820e705c121SKalle Valo 3821e705c121SKalle Valo iwl_mvm_fw_dbg_collect_trig(mvm, trig, 3822e705c121SKalle Valo "Frame from %pM timed out, tid %d", 3823e705c121SKalle Valo event->u.ba.sta->addr, event->u.ba.tid); 3824e705c121SKalle Valo } 3825e705c121SKalle Valo 3826e705c121SKalle Valo static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 3827e705c121SKalle Valo struct ieee80211_vif *vif, 3828e705c121SKalle Valo const struct ieee80211_event *event) 3829e705c121SKalle Valo { 3830e705c121SKalle Valo struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3831e705c121SKalle Valo 3832e705c121SKalle Valo switch (event->type) { 3833e705c121SKalle Valo case MLME_EVENT: 3834e705c121SKalle Valo iwl_mvm_event_mlme_callback(mvm, vif, event); 3835e705c121SKalle Valo break; 3836e705c121SKalle Valo case BAR_RX_EVENT: 3837e705c121SKalle Valo iwl_mvm_event_bar_rx_callback(mvm, vif, event); 3838e705c121SKalle Valo break; 3839e705c121SKalle Valo case BA_FRAME_TIMEOUT: 3840e705c121SKalle Valo iwl_mvm_event_frame_timeout_callback(mvm, vif, event); 3841e705c121SKalle Valo break; 3842e705c121SKalle Valo default: 3843e705c121SKalle Valo break; 3844e705c121SKalle Valo } 3845e705c121SKalle Valo } 3846e705c121SKalle Valo 3847e705c121SKalle Valo const struct ieee80211_ops iwl_mvm_hw_ops = { 3848e705c121SKalle Valo .tx = iwl_mvm_mac_tx, 3849e705c121SKalle Valo .ampdu_action = iwl_mvm_mac_ampdu_action, 3850e705c121SKalle Valo .start = iwl_mvm_mac_start, 3851e705c121SKalle Valo .reconfig_complete = iwl_mvm_mac_reconfig_complete, 3852e705c121SKalle Valo .stop = iwl_mvm_mac_stop, 3853e705c121SKalle Valo .add_interface = iwl_mvm_mac_add_interface, 3854e705c121SKalle Valo .remove_interface = iwl_mvm_mac_remove_interface, 3855e705c121SKalle Valo .config = iwl_mvm_mac_config, 3856e705c121SKalle Valo .prepare_multicast = iwl_mvm_prepare_multicast, 3857e705c121SKalle Valo .configure_filter = iwl_mvm_configure_filter, 3858e705c121SKalle Valo .config_iface_filter = iwl_mvm_config_iface_filter, 3859e705c121SKalle Valo .bss_info_changed = iwl_mvm_bss_info_changed, 3860e705c121SKalle Valo .hw_scan = iwl_mvm_mac_hw_scan, 3861e705c121SKalle Valo .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 3862e705c121SKalle Valo .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 3863e705c121SKalle Valo .sta_state = iwl_mvm_mac_sta_state, 3864e705c121SKalle Valo .sta_notify = iwl_mvm_mac_sta_notify, 3865e705c121SKalle Valo .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 3866e705c121SKalle Valo .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 3867e705c121SKalle Valo .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 3868e705c121SKalle Valo .sta_rc_update = iwl_mvm_sta_rc_update, 3869e705c121SKalle Valo .conf_tx = iwl_mvm_mac_conf_tx, 3870e705c121SKalle Valo .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 3871e705c121SKalle Valo .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 3872e705c121SKalle Valo .flush = iwl_mvm_mac_flush, 3873e705c121SKalle Valo .sched_scan_start = iwl_mvm_mac_sched_scan_start, 3874e705c121SKalle Valo .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 3875e705c121SKalle Valo .set_key = iwl_mvm_mac_set_key, 3876e705c121SKalle Valo .update_tkip_key = iwl_mvm_mac_update_tkip_key, 3877e705c121SKalle Valo .remain_on_channel = iwl_mvm_roc, 3878e705c121SKalle Valo .cancel_remain_on_channel = iwl_mvm_cancel_roc, 3879e705c121SKalle Valo .add_chanctx = iwl_mvm_add_chanctx, 3880e705c121SKalle Valo .remove_chanctx = iwl_mvm_remove_chanctx, 3881e705c121SKalle Valo .change_chanctx = iwl_mvm_change_chanctx, 3882e705c121SKalle Valo .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 3883e705c121SKalle Valo .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 3884e705c121SKalle Valo .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 3885e705c121SKalle Valo 3886e705c121SKalle Valo .start_ap = iwl_mvm_start_ap_ibss, 3887e705c121SKalle Valo .stop_ap = iwl_mvm_stop_ap_ibss, 3888e705c121SKalle Valo .join_ibss = iwl_mvm_start_ap_ibss, 3889e705c121SKalle Valo .leave_ibss = iwl_mvm_stop_ap_ibss, 3890e705c121SKalle Valo 3891e705c121SKalle Valo .set_tim = iwl_mvm_set_tim, 3892e705c121SKalle Valo 3893e705c121SKalle Valo .channel_switch = iwl_mvm_channel_switch, 3894e705c121SKalle Valo .pre_channel_switch = iwl_mvm_pre_channel_switch, 3895e705c121SKalle Valo .post_channel_switch = iwl_mvm_post_channel_switch, 3896e705c121SKalle Valo 3897e705c121SKalle Valo .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 3898e705c121SKalle Valo .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 3899e705c121SKalle Valo .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 3900e705c121SKalle Valo 3901e705c121SKalle Valo .event_callback = iwl_mvm_mac_event_callback, 3902e705c121SKalle Valo 3903e705c121SKalle Valo CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 3904e705c121SKalle Valo 3905e705c121SKalle Valo #ifdef CONFIG_PM_SLEEP 3906e705c121SKalle Valo /* look at d3.c */ 3907e705c121SKalle Valo .suspend = iwl_mvm_suspend, 3908e705c121SKalle Valo .resume = iwl_mvm_resume, 3909e705c121SKalle Valo .set_wakeup = iwl_mvm_set_wakeup, 3910e705c121SKalle Valo .set_rekey_data = iwl_mvm_set_rekey_data, 3911e705c121SKalle Valo #if IS_ENABLED(CONFIG_IPV6) 3912e705c121SKalle Valo .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 3913e705c121SKalle Valo #endif 3914e705c121SKalle Valo .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 3915e705c121SKalle Valo #endif 3916e705c121SKalle Valo .get_survey = iwl_mvm_mac_get_survey, 3917e705c121SKalle Valo .sta_statistics = iwl_mvm_mac_sta_statistics, 3918e705c121SKalle Valo }; 3919