| /****************************************************************************** |
| * |
| * This file is provided under a dual BSD/GPLv2 license. When using or |
| * redistributing this file, you may do so under either license. |
| * |
| * GPL LICENSE SUMMARY |
| * |
| * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
| * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH |
| * Copyright(c) 2016 Intel Deutschland GmbH |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, |
| * USA |
| * |
| * The full GNU General Public License is included in this distribution |
| * in the file called COPYING. |
| * |
| * Contact Information: |
| * Intel Linux Wireless <linuxwifi@intel.com> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| * |
| * BSD LICENSE |
| * |
| * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
| * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name Intel Corporation nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| *****************************************************************************/ |
| #include <linux/kernel.h> |
| #include <linux/slab.h> |
| #include <linux/skbuff.h> |
| #include <linux/netdevice.h> |
| #include <linux/etherdevice.h> |
| #include <linux/ip.h> |
| #include <linux/if_arp.h> |
| #include <linux/time.h> |
| #include <net/mac80211.h> |
| #include <net/ieee80211_radiotap.h> |
| #include <net/tcp.h> |
| |
| #include "iwl-op-mode.h" |
| #include "iwl-io.h" |
| #include "mvm.h" |
| #include "sta.h" |
| #include "time-event.h" |
| #include "iwl-eeprom-parse.h" |
| #include "iwl-phy-db.h" |
| #include "testmode.h" |
| #include "iwl-fw-error-dump.h" |
| #include "iwl-prph.h" |
| #include "iwl-nvm-parse.h" |
| #include "fw-dbg.h" |
| |
| static const struct ieee80211_iface_limit iwl_mvm_limits[] = { |
| { |
| .max = 1, |
| .types = BIT(NL80211_IFTYPE_STATION), |
| }, |
| { |
| .max = 1, |
| .types = BIT(NL80211_IFTYPE_AP) | |
| BIT(NL80211_IFTYPE_P2P_CLIENT) | |
| BIT(NL80211_IFTYPE_P2P_GO), |
| }, |
| { |
| .max = 1, |
| .types = BIT(NL80211_IFTYPE_P2P_DEVICE), |
| }, |
| }; |
| |
| static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { |
| { |
| .num_different_channels = 2, |
| .max_interfaces = 3, |
| .limits = iwl_mvm_limits, |
| .n_limits = ARRAY_SIZE(iwl_mvm_limits), |
| }, |
| }; |
| |
| #ifdef CONFIG_PM_SLEEP |
| static const struct nl80211_wowlan_tcp_data_token_feature |
| iwl_mvm_wowlan_tcp_token_feature = { |
| .min_len = 0, |
| .max_len = 255, |
| .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS, |
| }; |
| |
| static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = { |
| .tok = &iwl_mvm_wowlan_tcp_token_feature, |
| .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN - |
| sizeof(struct ethhdr) - |
| sizeof(struct iphdr) - |
| sizeof(struct tcphdr), |
| .data_interval_max = 65535, /* __le16 in API */ |
| .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN - |
| sizeof(struct ethhdr) - |
| sizeof(struct iphdr) - |
| sizeof(struct tcphdr), |
| .seq = true, |
| }; |
| #endif |
| |
| #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
| /* |
| * Use the reserved field to indicate magic values. |
| * these values will only be used internally by the driver, |
| * and won't make it to the fw (reserved will be 0). |
| * BC_FILTER_MAGIC_IP - configure the val of this attribute to |
| * be the vif's ip address. in case there is not a single |
| * ip address (0, or more than 1), this attribute will |
| * be skipped. |
| * BC_FILTER_MAGIC_MAC - set the val of this attribute to |
| * the LSB bytes of the vif's mac address |
| */ |
| enum { |
| BC_FILTER_MAGIC_NONE = 0, |
| BC_FILTER_MAGIC_IP, |
| BC_FILTER_MAGIC_MAC, |
| }; |
| |
| static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { |
| { |
| /* arp */ |
| .discard = 0, |
| .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, |
| .attrs = { |
| { |
| /* frame type - arp, hw type - ethernet */ |
| .offset_type = |
| BCAST_FILTER_OFFSET_PAYLOAD_START, |
| .offset = sizeof(rfc1042_header), |
| .val = cpu_to_be32(0x08060001), |
| .mask = cpu_to_be32(0xffffffff), |
| }, |
| { |
| /* arp dest ip */ |
| .offset_type = |
| BCAST_FILTER_OFFSET_PAYLOAD_START, |
| .offset = sizeof(rfc1042_header) + 2 + |
| sizeof(struct arphdr) + |
| ETH_ALEN + sizeof(__be32) + |
| ETH_ALEN, |
| .mask = cpu_to_be32(0xffffffff), |
| /* mark it as special field */ |
| .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), |
| }, |
| }, |
| }, |
| { |
| /* dhcp offer bcast */ |
| .discard = 0, |
| .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, |
| .attrs = { |
| { |
| /* udp dest port - 68 (bootp client)*/ |
| .offset_type = BCAST_FILTER_OFFSET_IP_END, |
| .offset = offsetof(struct udphdr, dest), |
| .val = cpu_to_be32(0x00440000), |
| .mask = cpu_to_be32(0xffff0000), |
| }, |
| { |
| /* dhcp - lsb bytes of client hw address */ |
| .offset_type = BCAST_FILTER_OFFSET_IP_END, |
| .offset = 38, |
| .mask = cpu_to_be32(0xffffffff), |
| /* mark it as special field */ |
| .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), |
| }, |
| }, |
| }, |
| /* last filter must be empty */ |
| {}, |
| }; |
| #endif |
| |
| void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) |
| { |
| if (!iwl_mvm_is_d0i3_supported(mvm)) |
| return; |
| |
| IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type); |
| spin_lock_bh(&mvm->refs_lock); |
| mvm->refs[ref_type]++; |
| spin_unlock_bh(&mvm->refs_lock); |
| iwl_trans_ref(mvm->trans); |
| } |
| |
| void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) |
| { |
| if (!iwl_mvm_is_d0i3_supported(mvm)) |
| return; |
| |
| IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type); |
| spin_lock_bh(&mvm->refs_lock); |
| WARN_ON(!mvm->refs[ref_type]--); |
| spin_unlock_bh(&mvm->refs_lock); |
| iwl_trans_unref(mvm->trans); |
| } |
| |
| static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm, |
| enum iwl_mvm_ref_type except_ref) |
| { |
| int i, j; |
| |
| if (!iwl_mvm_is_d0i3_supported(mvm)) |
| return; |
| |
| spin_lock_bh(&mvm->refs_lock); |
| for (i = 0; i < IWL_MVM_REF_COUNT; i++) { |
| if (except_ref == i || !mvm->refs[i]) |
| continue; |
| |
| IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n", |
| i, mvm->refs[i]); |
| for (j = 0; j < mvm->refs[i]; j++) |
| iwl_trans_unref(mvm->trans); |
| mvm->refs[i] = 0; |
| } |
| spin_unlock_bh(&mvm->refs_lock); |
| } |
| |
| bool iwl_mvm_ref_taken(struct iwl_mvm *mvm) |
| { |
| int i; |
| bool taken = false; |
| |
| if (!iwl_mvm_is_d0i3_supported(mvm)) |
| return true; |
| |
| spin_lock_bh(&mvm->refs_lock); |
| for (i = 0; i < IWL_MVM_REF_COUNT; i++) { |
| if (mvm->refs[i]) { |
| taken = true; |
| break; |
| } |
| } |
| spin_unlock_bh(&mvm->refs_lock); |
| |
| return taken; |
| } |
| |
| int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) |
| { |
| iwl_mvm_ref(mvm, ref_type); |
| |
| if (!wait_event_timeout(mvm->d0i3_exit_waitq, |
| !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status), |
| HZ)) { |
| WARN_ON_ONCE(1); |
| iwl_mvm_unref(mvm, ref_type); |
| return -EIO; |
| } |
| |
| return 0; |
| } |
| |
| static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) |
| { |
| int i; |
| |
| memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); |
| for (i = 0; i < NUM_PHY_CTX; i++) { |
| mvm->phy_ctxts[i].id = i; |
| mvm->phy_ctxts[i].ref = 0; |
| } |
| } |
| |
| struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, |
| const char *alpha2, |
| enum iwl_mcc_source src_id, |
| bool *changed) |
| { |
| struct ieee80211_regdomain *regd = NULL; |
| struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct iwl_mcc_update_resp *resp; |
| |
| IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); |
| if (IS_ERR_OR_NULL(resp)) { |
| IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", |
| PTR_ERR_OR_ZERO(resp)); |
| goto out; |
| } |
| |
| if (changed) |
| *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE); |
| |
| regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, |
| __le32_to_cpu(resp->n_channels), |
| resp->channels, |
| __le16_to_cpu(resp->mcc)); |
| /* Store the return source id */ |
| src_id = resp->source_id; |
| kfree(resp); |
| if (IS_ERR_OR_NULL(regd)) { |
| IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", |
| PTR_ERR_OR_ZERO(regd)); |
| goto out; |
| } |
| |
| IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", |
| regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); |
| mvm->lar_regdom_set = true; |
| mvm->mcc_src = src_id; |
| |
| out: |
| return regd; |
| } |
| |
| void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) |
| { |
| bool changed; |
| struct ieee80211_regdomain *regd; |
| |
| if (!iwl_mvm_is_lar_supported(mvm)) |
| return; |
| |
| regd = iwl_mvm_get_current_regdomain(mvm, &changed); |
| if (!IS_ERR_OR_NULL(regd)) { |
| /* only update the regulatory core if changed */ |
| if (changed) |
| regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); |
| |
| kfree(regd); |
| } |
| } |
| |
| struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, |
| bool *changed) |
| { |
| return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", |
| iwl_mvm_is_wifi_mcc_supported(mvm) ? |
| MCC_SOURCE_GET_CURRENT : |
| MCC_SOURCE_OLD_FW, changed); |
| } |
| |
| int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) |
| { |
| enum iwl_mcc_source used_src; |
| struct ieee80211_regdomain *regd; |
| int ret; |
| bool changed; |
| const struct ieee80211_regdomain *r = |
| rtnl_dereference(mvm->hw->wiphy->regd); |
| |
| if (!r) |
| return -ENOENT; |
| |
| /* save the last source in case we overwrite it below */ |
| used_src = mvm->mcc_src; |
| if (iwl_mvm_is_wifi_mcc_supported(mvm)) { |
| /* Notify the firmware we support wifi location updates */ |
| regd = iwl_mvm_get_current_regdomain(mvm, NULL); |
| if (!IS_ERR_OR_NULL(regd)) |
| kfree(regd); |
| } |
| |
| /* Now set our last stored MCC and source */ |
| regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, |
| &changed); |
| if (IS_ERR_OR_NULL(regd)) |
| return -EIO; |
| |
| /* update cfg80211 if the regdomain was changed */ |
| if (changed) |
| ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd); |
| else |
| ret = 0; |
| |
| kfree(regd); |
| return ret; |
| } |
| |
| int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) |
| { |
| struct ieee80211_hw *hw = mvm->hw; |
| int num_mac, ret, i; |
| static const u32 mvm_ciphers[] = { |
| WLAN_CIPHER_SUITE_WEP40, |
| WLAN_CIPHER_SUITE_WEP104, |
| WLAN_CIPHER_SUITE_TKIP, |
| WLAN_CIPHER_SUITE_CCMP, |
| }; |
| |
| /* Tell mac80211 our characteristics */ |
| ieee80211_hw_set(hw, SIGNAL_DBM); |
| ieee80211_hw_set(hw, SPECTRUM_MGMT); |
| ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); |
| ieee80211_hw_set(hw, QUEUE_CONTROL); |
| ieee80211_hw_set(hw, WANT_MONITOR_VIF); |
| ieee80211_hw_set(hw, SUPPORTS_PS); |
| ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); |
| ieee80211_hw_set(hw, AMPDU_AGGREGATION); |
| ieee80211_hw_set(hw, TIMING_BEACON_ONLY); |
| ieee80211_hw_set(hw, CONNECTION_MONITOR); |
| ieee80211_hw_set(hw, CHANCTX_STA_CSA); |
| ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); |
| ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); |
| ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); |
| ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); |
| |
| if (mvm->trans->max_skb_frags) |
| hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; |
| |
| hw->queues = mvm->first_agg_queue; |
| hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; |
| hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | |
| IEEE80211_RADIOTAP_MCS_HAVE_STBC; |
| hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | |
| IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; |
| hw->rate_control_algorithm = "iwl-mvm-rs"; |
| hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; |
| hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; |
| |
| BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 2); |
| memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); |
| hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); |
| hw->wiphy->cipher_suites = mvm->ciphers; |
| |
| /* |
| * Enable 11w if advertised by firmware and software crypto |
| * is not enabled (as the firmware will interpret some mgmt |
| * packets, so enabling it with software crypto isn't safe) |
| */ |
| if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && |
| !iwlwifi_mod_params.sw_crypto) { |
| ieee80211_hw_set(hw, MFP_CAPABLE); |
| mvm->ciphers[hw->wiphy->n_cipher_suites] = |
| WLAN_CIPHER_SUITE_AES_CMAC; |
| hw->wiphy->n_cipher_suites++; |
| } |
| |
| /* currently FW API supports only one optional cipher scheme */ |
| if (mvm->fw->cs[0].cipher) { |
| mvm->hw->n_cipher_schemes = 1; |
| mvm->hw->cipher_schemes = &mvm->fw->cs[0]; |
| mvm->ciphers[hw->wiphy->n_cipher_suites] = |
| mvm->fw->cs[0].cipher; |
| hw->wiphy->n_cipher_suites++; |
| } |
| |
| ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); |
| hw->wiphy->features |= |
| NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | |
| NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | |
| NL80211_FEATURE_ND_RANDOM_MAC_ADDR; |
| |
| hw->sta_data_size = sizeof(struct iwl_mvm_sta); |
| hw->vif_data_size = sizeof(struct iwl_mvm_vif); |
| hw->chanctx_data_size = sizeof(u16); |
| |
| hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | |
| BIT(NL80211_IFTYPE_P2P_CLIENT) | |
| BIT(NL80211_IFTYPE_AP) | |
| BIT(NL80211_IFTYPE_P2P_GO) | |
| BIT(NL80211_IFTYPE_P2P_DEVICE) | |
| BIT(NL80211_IFTYPE_ADHOC); |
| |
| hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
| hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; |
| if (iwl_mvm_is_lar_supported(mvm)) |
| hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; |
| else |
| hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | |
| REGULATORY_DISABLE_BEACON_HINTS; |
| |
| if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD) |
| hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; |
| |
| hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; |
| |
| hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; |
| hw->wiphy->n_iface_combinations = |
| ARRAY_SIZE(iwl_mvm_iface_combinations); |
| |
| hw->wiphy->max_remain_on_channel_duration = 10000; |
| hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
| /* we can compensate an offset of up to 3 channels = 15 MHz */ |
| hw->wiphy->max_adj_channel_rssi_comp = 3 * 5; |
| |
| /* Extract MAC address */ |
| memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); |
| hw->wiphy->addresses = mvm->addresses; |
| hw->wiphy->n_addresses = 1; |
| |
| /* Extract additional MAC addresses if available */ |
| num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? |
| min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; |
| |
| for (i = 1; i < num_mac; i++) { |
| memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, |
| ETH_ALEN); |
| mvm->addresses[i].addr[5]++; |
| hw->wiphy->n_addresses++; |
| } |
| |
| iwl_mvm_reset_phy_ctxts(mvm); |
| |
| hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); |
| |
| hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; |
| |
| BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); |
| BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || |
| IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); |
| |
| if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) |
| mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; |
| else |
| mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; |
| |
| if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) |
| hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
| &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ]; |
| if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) { |
| hw->wiphy->bands[IEEE80211_BAND_5GHZ] = |
| &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ]; |
| |
| if (fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_BEAMFORMER) && |
| fw_has_api(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_API_LQ_SS_PARAMS)) |
| hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |= |
| IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; |
| } |
| |
| hw->wiphy->hw_version = mvm->trans->hw_id; |
| |
| if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) |
| hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
| else |
| hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; |
| |
| hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; |
| hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; |
| hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; |
| /* we create the 802.11 header and zero length SSID IE. */ |
| hw->wiphy->max_sched_scan_ie_len = |
| SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; |
| hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; |
| hw->wiphy->max_sched_scan_plan_interval = U16_MAX; |
| |
| /* |
| * the firmware uses u8 for num of iterations, but 0xff is saved for |
| * infinite loop, so the maximum number of iterations is actually 254. |
| */ |
| hw->wiphy->max_sched_scan_plan_iterations = 254; |
| |
| hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | |
| NL80211_FEATURE_LOW_PRIORITY_SCAN | |
| NL80211_FEATURE_P2P_GO_OPPPS | |
| NL80211_FEATURE_DYNAMIC_SMPS | |
| NL80211_FEATURE_STATIC_SMPS | |
| NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; |
| |
| if (fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) |
| hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; |
| if (fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) |
| hw->wiphy->features |= NL80211_FEATURE_QUIET; |
| |
| if (fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) |
| hw->wiphy->features |= |
| NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; |
| |
| if (fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) |
| hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; |
| |
| mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; |
| |
| #ifdef CONFIG_PM_SLEEP |
| if (iwl_mvm_is_d0i3_supported(mvm) && |
| device_can_wakeup(mvm->trans->dev)) { |
| mvm->wowlan.flags = WIPHY_WOWLAN_ANY; |
| hw->wiphy->wowlan = &mvm->wowlan; |
| } |
| |
| if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && |
| mvm->trans->ops->d3_suspend && |
| mvm->trans->ops->d3_resume && |
| device_can_wakeup(mvm->trans->dev)) { |
| mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | |
| WIPHY_WOWLAN_DISCONNECT | |
| WIPHY_WOWLAN_EAP_IDENTITY_REQ | |
| WIPHY_WOWLAN_RFKILL_RELEASE | |
| WIPHY_WOWLAN_NET_DETECT; |
| if (!iwlwifi_mod_params.sw_crypto) |
| mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
| WIPHY_WOWLAN_GTK_REKEY_FAILURE | |
| WIPHY_WOWLAN_4WAY_HANDSHAKE; |
| |
| mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; |
| mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; |
| mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; |
| mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES; |
| mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; |
| hw->wiphy->wowlan = &mvm->wowlan; |
| } |
| #endif |
| |
| #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
| /* assign default bcast filtering configuration */ |
| mvm->bcast_filters = iwl_mvm_default_bcast_filters; |
| #endif |
| |
| ret = iwl_mvm_leds_init(mvm); |
| if (ret) |
| return ret; |
| |
| if (fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { |
| IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); |
| hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; |
| ieee80211_hw_set(hw, TDLS_WIDER_BW); |
| } |
| |
| if (fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { |
| IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); |
| hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; |
| } |
| |
| hw->netdev_features |= mvm->cfg->features; |
| if (!iwl_mvm_is_csum_supported(mvm)) |
| hw->netdev_features &= ~NETIF_F_RXCSUM; |
| |
| if (IWL_MVM_SW_TX_CSUM_OFFLOAD) |
| hw->netdev_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | |
| NETIF_F_TSO | NETIF_F_TSO6; |
| |
| ret = ieee80211_register_hw(mvm->hw); |
| if (ret) |
| iwl_mvm_leds_exit(mvm); |
| |
| return ret; |
| } |
| |
| static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm, |
| struct ieee80211_sta *sta, |
| struct sk_buff *skb) |
| { |
| struct iwl_mvm_sta *mvmsta; |
| bool defer = false; |
| |
| /* |
| * double check the IN_D0I3 flag both before and after |
| * taking the spinlock, in order to prevent taking |
| * the spinlock when not needed. |
| */ |
| if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))) |
| return false; |
| |
| spin_lock(&mvm->d0i3_tx_lock); |
| /* |
| * testing the flag again ensures the skb dequeue |
| * loop (on d0i3 exit) hasn't run yet. |
| */ |
| if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) |
| goto out; |
| |
| mvmsta = iwl_mvm_sta_from_mac80211(sta); |
| if (mvmsta->sta_id == IWL_MVM_STATION_COUNT || |
| mvmsta->sta_id != mvm->d0i3_ap_sta_id) |
| goto out; |
| |
| __skb_queue_tail(&mvm->d0i3_tx, skb); |
| ieee80211_stop_queues(mvm->hw); |
| |
| /* trigger wakeup */ |
| iwl_mvm_ref(mvm, IWL_MVM_REF_TX); |
| iwl_mvm_unref(mvm, IWL_MVM_REF_TX); |
| |
| defer = true; |
| out: |
| spin_unlock(&mvm->d0i3_tx_lock); |
| return defer; |
| } |
| |
| static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, |
| struct ieee80211_tx_control *control, |
| struct sk_buff *skb) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct ieee80211_sta *sta = control->sta; |
| struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
| struct ieee80211_hdr *hdr = (void *)skb->data; |
| |
| if (iwl_mvm_is_radio_killed(mvm)) { |
| IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); |
| goto drop; |
| } |
| |
| if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && |
| !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && |
| !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) |
| goto drop; |
| |
| /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */ |
| if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER && |
| ieee80211_is_mgmt(hdr->frame_control) && |
| !ieee80211_is_deauth(hdr->frame_control) && |
| !ieee80211_is_disassoc(hdr->frame_control) && |
| !ieee80211_is_action(hdr->frame_control))) |
| sta = NULL; |
| |
| if (sta) { |
| if (iwl_mvm_defer_tx(mvm, sta, skb)) |
| return; |
| if (iwl_mvm_tx_skb(mvm, skb, sta)) |
| goto drop; |
| return; |
| } |
| |
| if (iwl_mvm_tx_skb_non_sta(mvm, skb)) |
| goto drop; |
| return; |
| drop: |
| ieee80211_free_txskb(hw, skb); |
| } |
| |
| static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) |
| { |
| if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) |
| return false; |
| return true; |
| } |
| |
| static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) |
| { |
| if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) |
| return false; |
| if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) |
| return true; |
| |
| /* enabled by default */ |
| return true; |
| } |
| |
| #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ |
| do { \ |
| if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ |
| break; \ |
| iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \ |
| } while (0) |
| |
| static void |
| iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, |
| enum ieee80211_ampdu_mlme_action action) |
| { |
| struct iwl_fw_dbg_trigger_tlv *trig; |
| struct iwl_fw_dbg_trigger_ba *ba_trig; |
| |
| if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) |
| return; |
| |
| trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); |
| ba_trig = (void *)trig->data; |
| |
| if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) |
| return; |
| |
| switch (action) { |
| case IEEE80211_AMPDU_TX_OPERATIONAL: { |
| struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); |
| struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; |
| |
| CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, |
| "TX AGG START: MAC %pM tid %d ssn %d\n", |
| sta->addr, tid, tid_data->ssn); |
| break; |
| } |
| case IEEE80211_AMPDU_TX_STOP_CONT: |
| CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, |
| "TX AGG STOP: MAC %pM tid %d\n", |
| sta->addr, tid); |
| break; |
| case IEEE80211_AMPDU_RX_START: |
| CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, |
| "RX AGG START: MAC %pM tid %d ssn %d\n", |
| sta->addr, tid, rx_ba_ssn); |
| break; |
| case IEEE80211_AMPDU_RX_STOP: |
| CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, |
| "RX AGG STOP: MAC %pM tid %d\n", |
| sta->addr, tid); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_ampdu_params *params) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| int ret; |
| bool tx_agg_ref = false; |
| struct ieee80211_sta *sta = params->sta; |
| enum ieee80211_ampdu_mlme_action action = params->action; |
| u16 tid = params->tid; |
| u16 *ssn = ¶ms->ssn; |
| u8 buf_size = params->buf_size; |
| bool amsdu = params->amsdu; |
| |
| IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", |
| sta->addr, tid, action); |
| |
| if (!(mvm->nvm_data->sku_cap_11n_enable)) |
| return -EACCES; |
| |
| /* return from D0i3 before starting a new Tx aggregation */ |
| switch (action) { |
| case IEEE80211_AMPDU_TX_START: |
| case IEEE80211_AMPDU_TX_STOP_CONT: |
| case IEEE80211_AMPDU_TX_STOP_FLUSH: |
| case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: |
| case IEEE80211_AMPDU_TX_OPERATIONAL: |
| /* |
| * for tx start, wait synchronously until D0i3 exit to |
| * get the correct sequence number for the tid. |
| * additionally, some other ampdu actions use direct |
| * target access, which is not handled automatically |
| * by the trans layer (unlike commands), so wait for |
| * d0i3 exit in these cases as well. |
| */ |
| ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG); |
| if (ret) |
| return ret; |
| |
| tx_agg_ref = true; |
| break; |
| default: |
| break; |
| } |
| |
| mutex_lock(&mvm->mutex); |
| |
| switch (action) { |
| case IEEE80211_AMPDU_RX_START: |
| if (!iwl_enable_rx_ampdu(mvm->cfg)) { |
| ret = -EINVAL; |
| break; |
| } |
| ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size); |
| break; |
| case IEEE80211_AMPDU_RX_STOP: |
| ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size); |
| break; |
| case IEEE80211_AMPDU_TX_START: |
| if (!iwl_enable_tx_ampdu(mvm->cfg)) { |
| ret = -EINVAL; |
| break; |
| } |
| ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); |
| break; |
| case IEEE80211_AMPDU_TX_STOP_CONT: |
| ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); |
| break; |
| case IEEE80211_AMPDU_TX_STOP_FLUSH: |
| case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: |
| ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); |
| break; |
| case IEEE80211_AMPDU_TX_OPERATIONAL: |
| ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, |
| buf_size, amsdu); |
| break; |
| default: |
| WARN_ON_ONCE(1); |
| ret = -EINVAL; |
| break; |
| } |
| |
| if (!ret) { |
| u16 rx_ba_ssn = 0; |
| |
| if (action == IEEE80211_AMPDU_RX_START) |
| rx_ba_ssn = *ssn; |
| |
| iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, |
| rx_ba_ssn, action); |
| } |
| mutex_unlock(&mvm->mutex); |
| |
| /* |
| * If the tid is marked as started, we won't use it for offloaded |
| * traffic on the next D0i3 entry. It's safe to unref. |
| */ |
| if (tx_agg_ref) |
| iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); |
| |
| return ret; |
| } |
| |
| static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm *mvm = data; |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| |
| mvmvif->uploaded = false; |
| mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; |
| |
| spin_lock_bh(&mvm->time_event_lock); |
| iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); |
| spin_unlock_bh(&mvm->time_event_lock); |
| |
| mvmvif->phy_ctxt = NULL; |
| memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); |
| } |
| |
| static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) |
| { |
| /* clear the D3 reconfig, we only need it to avoid dumping a |
| * firmware coredump on reconfiguration, we shouldn't do that |
| * on D3->D0 transition |
| */ |
| if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) { |
| mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert; |
| iwl_mvm_fw_error_dump(mvm); |
| } |
| |
| /* cleanup all stale references (scan, roc), but keep the |
| * ucode_down ref until reconfig is complete |
| */ |
| iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN); |
| |
| iwl_mvm_stop_device(mvm); |
| |
| mvm->scan_status = 0; |
| mvm->ps_disabled = false; |
| mvm->calibrating = false; |
| |
| /* just in case one was running */ |
| iwl_mvm_cleanup_roc_te(mvm); |
| ieee80211_remain_on_channel_expired(mvm->hw); |
| |
| /* |
| * cleanup all interfaces, even inactive ones, as some might have |
| * gone down during the HW restart |
| */ |
| ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); |
| |
| mvm->p2p_device_vif = NULL; |
| mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; |
| |
| iwl_mvm_reset_phy_ctxts(mvm); |
| memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); |
| memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); |
| memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained)); |
| memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); |
| memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old)); |
| memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); |
| memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old)); |
| memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk)); |
| memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk)); |
| |
| ieee80211_wake_queues(mvm->hw); |
| |
| /* clear any stale d0i3 state */ |
| clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); |
| |
| mvm->vif_count = 0; |
| mvm->rx_ba_sessions = 0; |
| mvm->fw_dbg_conf = FW_DBG_INVALID; |
| |
| /* keep statistics ticking */ |
| iwl_mvm_accu_radio_stats(mvm); |
| } |
| |
| int __iwl_mvm_mac_start(struct iwl_mvm *mvm) |
| { |
| int ret; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { |
| /* Clean up some internal and mac80211 state on restart */ |
| iwl_mvm_restart_cleanup(mvm); |
| } else { |
| /* Hold the reference to prevent runtime suspend while |
| * the start procedure runs. It's a bit confusing |
| * that the UCODE_DOWN reference is taken, but it just |
| * means "UCODE is not UP yet". ( TODO: rename this |
| * reference). |
| */ |
| iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); |
| } |
| ret = iwl_mvm_up(mvm); |
| |
| if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { |
| /* Something went wrong - we need to finish some cleanup |
| * that normally iwl_mvm_mac_restart_complete() below |
| * would do. |
| */ |
| clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); |
| iwl_mvm_d0i3_enable_tx(mvm, NULL); |
| } |
| |
| return ret; |
| } |
| |
| static int iwl_mvm_mac_start(struct ieee80211_hw *hw) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| int ret; |
| |
| /* Some hw restart cleanups must not hold the mutex */ |
| if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { |
| /* |
| * Make sure we are out of d0i3. This is needed |
| * to make sure the reference accounting is correct |
| * (and there is no stale d0i3_exit_work). |
| */ |
| wait_event_timeout(mvm->d0i3_exit_waitq, |
| !test_bit(IWL_MVM_STATUS_IN_D0I3, |
| &mvm->status), |
| HZ); |
| } |
| |
| mutex_lock(&mvm->mutex); |
| ret = __iwl_mvm_mac_start(mvm); |
| mutex_unlock(&mvm->mutex); |
| |
| return ret; |
| } |
| |
| static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) |
| { |
| int ret; |
| |
| mutex_lock(&mvm->mutex); |
| |
| clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); |
| iwl_mvm_d0i3_enable_tx(mvm, NULL); |
| ret = iwl_mvm_update_quotas(mvm, true, NULL); |
| if (ret) |
| IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", |
| ret); |
| |
| /* allow transport/FW low power modes */ |
| iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN); |
| |
| /* |
| * If we have TDLS peers, remove them. We don't know the last seqno/PN |
| * of packets the FW sent out, so we must reconnect. |
| */ |
| iwl_mvm_teardown_tdls_peers(mvm); |
| |
| mutex_unlock(&mvm->mutex); |
| } |
| |
| static void iwl_mvm_resume_complete(struct iwl_mvm *mvm) |
| { |
| if (iwl_mvm_is_d0i3_supported(mvm) && |
| iwl_mvm_enter_d0i3_on_suspend(mvm)) |
| WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq, |
| !test_bit(IWL_MVM_STATUS_IN_D0I3, |
| &mvm->status), |
| HZ), |
| "D0i3 exit on resume timed out\n"); |
| } |
| |
| static void |
| iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, |
| enum ieee80211_reconfig_type reconfig_type) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| |
| switch (reconfig_type) { |
| case IEEE80211_RECONFIG_TYPE_RESTART: |
| iwl_mvm_restart_complete(mvm); |
| break; |
| case IEEE80211_RECONFIG_TYPE_SUSPEND: |
| iwl_mvm_resume_complete(mvm); |
| break; |
| } |
| } |
| |
| void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) |
| { |
| lockdep_assert_held(&mvm->mutex); |
| |
| /* firmware counters are obviously reset now, but we shouldn't |
| * partially track so also clear the fw_reset_accu counters. |
| */ |
| memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); |
| |
| /* async_handlers_wk is now blocked */ |
| |
| /* |
| * The work item could be running or queued if the |
| * ROC time event stops just as we get here. |
| */ |
| flush_work(&mvm->roc_done_wk); |
| |
| iwl_mvm_stop_device(mvm); |
| |
| iwl_mvm_async_handlers_purge(mvm); |
| /* async_handlers_list is empty and will stay empty: HW is stopped */ |
| |
| /* the fw is stopped, the aux sta is dead: clean up driver state */ |
| iwl_mvm_del_aux_sta(mvm); |
| |
| iwl_free_fw_paging(mvm); |
| |
| /* |
| * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete() |
| * won't be called in this case). |
| * But make sure to cleanup interfaces that have gone down before/during |
| * HW restart was requested. |
| */ |
| if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) |
| ieee80211_iterate_interfaces(mvm->hw, 0, |
| iwl_mvm_cleanup_iterator, mvm); |
| |
| /* We shouldn't have any UIDs still set. Loop over all the UIDs to |
| * make sure there's nothing left there and warn if any is found. |
| */ |
| if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { |
| int i; |
| |
| for (i = 0; i < mvm->max_scans; i++) { |
| if (WARN_ONCE(mvm->scan_uid_status[i], |
| "UMAC scan UID %d status was not cleaned\n", |
| i)) |
| mvm->scan_uid_status[i] = 0; |
| } |
| } |
| } |
| |
| static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| |
| flush_work(&mvm->d0i3_exit_work); |
| flush_work(&mvm->async_handlers_wk); |
| cancel_delayed_work_sync(&mvm->fw_dump_wk); |
| iwl_mvm_free_fw_dump_desc(mvm); |
| |
| mutex_lock(&mvm->mutex); |
| __iwl_mvm_mac_stop(mvm); |
| mutex_unlock(&mvm->mutex); |
| |
| /* |
| * The worker might have been waiting for the mutex, let it run and |
| * discover that its list is now empty. |
| */ |
| cancel_work_sync(&mvm->async_handlers_wk); |
| } |
| |
| static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) |
| { |
| u16 i; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| for (i = 0; i < NUM_PHY_CTX; i++) |
| if (!mvm->phy_ctxts[i].ref) |
| return &mvm->phy_ctxts[i]; |
| |
| IWL_ERR(mvm, "No available PHY context\n"); |
| return NULL; |
| } |
| |
| static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
| s16 tx_power) |
| { |
| struct iwl_dev_tx_power_cmd cmd = { |
| .v2.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), |
| .v2.mac_context_id = |
| cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), |
| .v2.pwr_restriction = cpu_to_le16(8 * tx_power), |
| }; |
| int len = sizeof(cmd); |
| |
| if (tx_power == IWL_DEFAULT_MAX_TX_POWER) |
| cmd.v2.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); |
| |
| if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_TX_POWER_CHAIN)) |
| len = sizeof(cmd.v2); |
| |
| return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); |
| } |
| |
| static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| int ret; |
| |
| mvmvif->mvm = mvm; |
| |
| /* |
| * make sure D0i3 exit is completed, otherwise a target access |
| * during tx queue configuration could be done when still in |
| * D0i3 state. |
| */ |
| ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF); |
| if (ret) |
| return ret; |
| |
| /* |
| * Not much to do here. The stack will not allow interface |
| * types or combinations that we didn't advertise, so we |
| * don't really have to check the types. |
| */ |
| |
| mutex_lock(&mvm->mutex); |
| |
| /* make sure that beacon statistics don't go backwards with FW reset */ |
| if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) |
| mvmvif->beacon_stats.accu_num_beacons += |
| mvmvif->beacon_stats.num_beacons; |
| |
| /* Allocate resources for the MAC context, and add it to the fw */ |
| ret = iwl_mvm_mac_ctxt_init(mvm, vif); |
| if (ret) |
| goto out_unlock; |
| |
| /* Counting number of interfaces is needed for legacy PM */ |
| if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
| mvm->vif_count++; |
| |
| /* |
| * The AP binding flow can be done only after the beacon |
| * template is configured (which happens only in the mac80211 |
| * start_ap() flow), and adding the broadcast station can happen |
| * only after the binding. |
| * In addition, since modifying the MAC before adding a bcast |
| * station is not allowed by the FW, delay the adding of MAC context to |
| * the point where we can also add the bcast station. |
| * In short: there's not much we can do at this point, other than |
| * allocating resources :) |
| */ |
| if (vif->type == NL80211_IFTYPE_AP || |
| vif->type == NL80211_IFTYPE_ADHOC) { |
| ret = iwl_mvm_alloc_bcast_sta(mvm, vif); |
| if (ret) { |
| IWL_ERR(mvm, "Failed to allocate bcast sta\n"); |
| goto out_release; |
| } |
| |
| iwl_mvm_vif_dbgfs_register(mvm, vif); |
| goto out_unlock; |
| } |
| |
| mvmvif->features |= hw->netdev_features; |
| |
| ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
| if (ret) |
| goto out_release; |
| |
| ret = iwl_mvm_power_update_mac(mvm); |
| if (ret) |
| goto out_remove_mac; |
| |
| /* beacon filtering */ |
| ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); |
| if (ret) |
| goto out_remove_mac; |
| |
| if (!mvm->bf_allowed_vif && |
| vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { |
| mvm->bf_allowed_vif = mvmvif; |
| vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | |
| IEEE80211_VIF_SUPPORTS_CQM_RSSI; |
| } |
| |
| /* |
| * P2P_DEVICE interface does not have a channel context assigned to it, |
| * so a dedicated PHY context is allocated to it and the corresponding |
| * MAC context is bound to it at this stage. |
| */ |
| if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { |
| |
| mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
| if (!mvmvif->phy_ctxt) { |
| ret = -ENOSPC; |
| goto out_free_bf; |
| } |
| |
| iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); |
| ret = iwl_mvm_binding_add_vif(mvm, vif); |
| if (ret) |
| goto out_unref_phy; |
| |
| ret = iwl_mvm_add_bcast_sta(mvm, vif); |
| if (ret) |
| goto out_unbind; |
| |
| /* Save a pointer to p2p device vif, so it can later be used to |
| * update the p2p device MAC when a GO is started/stopped */ |
| mvm->p2p_device_vif = vif; |
| } |
| |
| iwl_mvm_vif_dbgfs_register(mvm, vif); |
| goto out_unlock; |
| |
| out_unbind: |
| iwl_mvm_binding_remove_vif(mvm, vif); |
| out_unref_phy: |
| iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
| out_free_bf: |
| if (mvm->bf_allowed_vif == mvmvif) { |
| mvm->bf_allowed_vif = NULL; |
| vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
| IEEE80211_VIF_SUPPORTS_CQM_RSSI); |
| } |
| out_remove_mac: |
| mvmvif->phy_ctxt = NULL; |
| iwl_mvm_mac_ctxt_remove(mvm, vif); |
| out_release: |
| if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
| mvm->vif_count--; |
| |
| iwl_mvm_mac_ctxt_release(mvm, vif); |
| out_unlock: |
| mutex_unlock(&mvm->mutex); |
| |
| iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF); |
| |
| return ret; |
| } |
| |
| static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif) |
| { |
| u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif); |
| |
| if (tfd_msk) { |
| /* |
| * mac80211 first removes all the stations of the vif and |
| * then removes the vif. When it removes a station it also |
| * flushes the AMPDU session. So by now, all the AMPDU sessions |
| * of all the stations of this vif are closed, and the queues |
| * of these AMPDU sessions are properly closed. |
| * We still need to take care of the shared queues of the vif. |
| * Flush them here. |
| */ |
| mutex_lock(&mvm->mutex); |
| iwl_mvm_flush_tx_path(mvm, tfd_msk, 0); |
| mutex_unlock(&mvm->mutex); |
| |
| /* |
| * There are transports that buffer a few frames in the host. |
| * For these, the flush above isn't enough since while we were |
| * flushing, the transport might have sent more frames to the |
| * device. To solve this, wait here until the transport is |
| * empty. Technically, this could have replaced the flush |
| * above, but flush is much faster than draining. So flush |
| * first, and drain to make sure we have no frames in the |
| * transport anymore. |
| * If a station still had frames on the shared queues, it is |
| * already marked as draining, so to complete the draining, we |
| * just need to wait until the transport is empty. |
| */ |
| iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk); |
| } |
| |
| if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { |
| /* |
| * Flush the ROC worker which will flush the OFFCHANNEL queue. |
| * We assume here that all the packets sent to the OFFCHANNEL |
| * queue are sent in ROC session. |
| */ |
| flush_work(&mvm->roc_done_wk); |
| } else { |
| /* |
| * By now, all the AC queues are empty. The AGG queues are |
| * empty too. We already got all the Tx responses for all the |
| * packets in the queues. The drain work can have been |
| * triggered. Flush it. |
| */ |
| flush_work(&mvm->sta_drained_wk); |
| } |
| } |
| |
| static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| |
| iwl_mvm_prepare_mac_removal(mvm, vif); |
| |
| mutex_lock(&mvm->mutex); |
| |
| if (mvm->bf_allowed_vif == mvmvif) { |
| mvm->bf_allowed_vif = NULL; |
| vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
| IEEE80211_VIF_SUPPORTS_CQM_RSSI); |
| } |
| |
| iwl_mvm_vif_dbgfs_clean(mvm, vif); |
| |
| /* |
| * For AP/GO interface, the tear down of the resources allocated to the |
| * interface is be handled as part of the stop_ap flow. |
| */ |
| if (vif->type == NL80211_IFTYPE_AP || |
| vif->type == NL80211_IFTYPE_ADHOC) { |
| #ifdef CONFIG_NL80211_TESTMODE |
| if (vif == mvm->noa_vif) { |
| mvm->noa_vif = NULL; |
| mvm->noa_duration = 0; |
| } |
| #endif |
| iwl_mvm_dealloc_bcast_sta(mvm, vif); |
| goto out_release; |
| } |
| |
| if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { |
| mvm->p2p_device_vif = NULL; |
| iwl_mvm_rm_bcast_sta(mvm, vif); |
| iwl_mvm_binding_remove_vif(mvm, vif); |
| iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
| mvmvif->phy_ctxt = NULL; |
| } |
| |
| if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) |
| mvm->vif_count--; |
| |
| iwl_mvm_power_update_mac(mvm); |
| iwl_mvm_mac_ctxt_remove(mvm, vif); |
| |
| out_release: |
| iwl_mvm_mac_ctxt_release(mvm, vif); |
| mutex_unlock(&mvm->mutex); |
| } |
| |
| static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) |
| { |
| return 0; |
| } |
| |
| struct iwl_mvm_mc_iter_data { |
| struct iwl_mvm *mvm; |
| int port_id; |
| }; |
| |
| static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm_mc_iter_data *data = _data; |
| struct iwl_mvm *mvm = data->mvm; |
| struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; |
| int ret, len; |
| |
| /* if we don't have free ports, mcast frames will be dropped */ |
| if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) |
| return; |
| |
| if (vif->type != NL80211_IFTYPE_STATION || |
| !vif->bss_conf.assoc) |
| return; |
| |
| cmd->port_id = data->port_id++; |
| memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); |
| len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); |
| |
| ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd); |
| if (ret) |
| IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); |
| } |
| |
| static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) |
| { |
| struct iwl_mvm_mc_iter_data iter_data = { |
| .mvm = mvm, |
| }; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) |
| return; |
| |
| ieee80211_iterate_active_interfaces_atomic( |
| mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
| iwl_mvm_mc_iface_iterator, &iter_data); |
| } |
| |
| static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, |
| struct netdev_hw_addr_list *mc_list) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct iwl_mcast_filter_cmd *cmd; |
| struct netdev_hw_addr *addr; |
| int addr_count; |
| bool pass_all; |
| int len; |
| |
| addr_count = netdev_hw_addr_list_count(mc_list); |
| pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || |
| IWL_MVM_FW_MCAST_FILTER_PASS_ALL; |
| if (pass_all) |
| addr_count = 0; |
| |
| len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); |
| cmd = kzalloc(len, GFP_ATOMIC); |
| if (!cmd) |
| return 0; |
| |
| if (pass_all) { |
| cmd->pass_all = 1; |
| return (u64)(unsigned long)cmd; |
| } |
| |
| netdev_hw_addr_list_for_each(addr, mc_list) { |
| IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", |
| cmd->count, addr->addr); |
| memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], |
| addr->addr, ETH_ALEN); |
| cmd->count++; |
| } |
| |
| return (u64)(unsigned long)cmd; |
| } |
| |
| static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, |
| unsigned int changed_flags, |
| unsigned int *total_flags, |
| u64 multicast) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; |
| |
| mutex_lock(&mvm->mutex); |
| |
| /* replace previous configuration */ |
| kfree(mvm->mcast_filter_cmd); |
| mvm->mcast_filter_cmd = cmd; |
| |
| if (!cmd) |
| goto out; |
| |
| iwl_mvm_recalc_multicast(mvm); |
| out: |
| mutex_unlock(&mvm->mutex); |
| *total_flags = 0; |
| } |
| |
| static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| unsigned int filter_flags, |
| unsigned int changed_flags) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| |
| /* We support only filter for probe requests */ |
| if (!(changed_flags & FIF_PROBE_REQ)) |
| return; |
| |
| /* Supported only for p2p client interfaces */ |
| if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || |
| !vif->p2p) |
| return; |
| |
| mutex_lock(&mvm->mutex); |
| iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
| mutex_unlock(&mvm->mutex); |
| } |
| |
| #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
| struct iwl_bcast_iter_data { |
| struct iwl_mvm *mvm; |
| struct iwl_bcast_filter_cmd *cmd; |
| u8 current_filter; |
| }; |
| |
| static void |
| iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, |
| const struct iwl_fw_bcast_filter *in_filter, |
| struct iwl_fw_bcast_filter *out_filter) |
| { |
| struct iwl_fw_bcast_filter_attr *attr; |
| int i; |
| |
| memcpy(out_filter, in_filter, sizeof(*out_filter)); |
| |
| for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { |
| attr = &out_filter->attrs[i]; |
| |
| if (!attr->mask) |
| break; |
| |
| switch (attr->reserved1) { |
| case cpu_to_le16(BC_FILTER_MAGIC_IP): |
| if (vif->bss_conf.arp_addr_cnt != 1) { |
| attr->mask = 0; |
| continue; |
| } |
| |
| attr->val = vif->bss_conf.arp_addr_list[0]; |
| break; |
| case cpu_to_le16(BC_FILTER_MAGIC_MAC): |
| attr->val = *(__be32 *)&vif->addr[2]; |
| break; |
| default: |
| break; |
| } |
| attr->reserved1 = 0; |
| out_filter->num_attrs++; |
| } |
| } |
| |
| static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_bcast_iter_data *data = _data; |
| struct iwl_mvm *mvm = data->mvm; |
| struct iwl_bcast_filter_cmd *cmd = data->cmd; |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct iwl_fw_bcast_mac *bcast_mac; |
| int i; |
| |
| if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) |
| return; |
| |
| bcast_mac = &cmd->macs[mvmvif->id]; |
| |
| /* |
| * enable filtering only for associated stations, but not for P2P |
| * Clients |
| */ |
| if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || |
| !vif->bss_conf.assoc) |
| return; |
| |
| bcast_mac->default_discard = 1; |
| |
| /* copy all configured filters */ |
| for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { |
| /* |
| * Make sure we don't exceed our filters limit. |
| * if there is still a valid filter to be configured, |
| * be on the safe side and just allow bcast for this mac. |
| */ |
| if (WARN_ON_ONCE(data->current_filter >= |
| ARRAY_SIZE(cmd->filters))) { |
| bcast_mac->default_discard = 0; |
| bcast_mac->attached_filters = 0; |
| break; |
| } |
| |
| iwl_mvm_set_bcast_filter(vif, |
| &mvm->bcast_filters[i], |
| &cmd->filters[data->current_filter]); |
| |
| /* skip current filter if it contains no attributes */ |
| if (!cmd->filters[data->current_filter].num_attrs) |
| continue; |
| |
| /* attach the filter to current mac */ |
| bcast_mac->attached_filters |= |
| cpu_to_le16(BIT(data->current_filter)); |
| |
| data->current_filter++; |
| } |
| } |
| |
| bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, |
| struct iwl_bcast_filter_cmd *cmd) |
| { |
| struct iwl_bcast_iter_data iter_data = { |
| .mvm = mvm, |
| .cmd = cmd, |
| }; |
| |
| if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) |
| return false; |
| |
| memset(cmd, 0, sizeof(*cmd)); |
| cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); |
| cmd->max_macs = ARRAY_SIZE(cmd->macs); |
| |
| #ifdef CONFIG_IWLWIFI_DEBUGFS |
| /* use debugfs filters/macs if override is configured */ |
| if (mvm->dbgfs_bcast_filtering.override) { |
| memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, |
| sizeof(cmd->filters)); |
| memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, |
| sizeof(cmd->macs)); |
| return true; |
| } |
| #endif |
| |
| /* if no filters are configured, do nothing */ |
| if (!mvm->bcast_filters) |
| return false; |
| |
| /* configure and attach these filters for each associated sta vif */ |
| ieee80211_iterate_active_interfaces( |
| mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
| iwl_mvm_bcast_filter_iterator, &iter_data); |
| |
| return true; |
| } |
| |
| static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) |
| { |
| struct iwl_bcast_filter_cmd cmd; |
| |
| if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) |
| return 0; |
| |
| if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) |
| return 0; |
| |
| return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, |
| sizeof(cmd), &cmd); |
| } |
| #else |
| static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) |
| { |
| return 0; |
| } |
| #endif |
| |
| static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_mu_group_mgmt_cmd cmd = {}; |
| |
| memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, |
| WLAN_MEMBERSHIP_LEN); |
| memcpy(cmd.user_position, vif->bss_conf.mu_group.position, |
| WLAN_USER_POSITION_LEN); |
| |
| return iwl_mvm_send_cmd_pdu(mvm, |
| WIDE_ID(DATA_PATH_GROUP, |
| UPDATE_MU_GROUPS_CMD), |
| 0, sizeof(cmd), &cmd); |
| } |
| |
| static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, |
| struct ieee80211_vif *vif) |
| { |
| if (vif->mu_mimo_owner) { |
| struct iwl_mu_group_mgmt_notif *notif = _data; |
| |
| /* |
| * MU-MIMO Group Id action frame is little endian. We treat |
| * the data received from firmware as if it came from the |
| * action frame, so no conversion is needed. |
| */ |
| ieee80211_update_mu_groups(vif, |
| (u8 *)¬if->membership_status, |
| (u8 *)¬if->user_position); |
| } |
| } |
| |
| void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, |
| struct iwl_rx_cmd_buffer *rxb) |
| { |
| struct iwl_rx_packet *pkt = rxb_addr(rxb); |
| struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; |
| |
| ieee80211_iterate_active_interfaces_atomic( |
| mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
| iwl_mvm_mu_mimo_iface_iterator, notif); |
| } |
| |
| static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| struct ieee80211_bss_conf *bss_conf, |
| u32 changes) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| int ret; |
| |
| /* |
| * Re-calculate the tsf id, as the master-slave relations depend on the |
| * beacon interval, which was not known when the station interface was |
| * added. |
| */ |
| if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) |
| iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); |
| |
| /* |
| * If we're not associated yet, take the (new) BSSID before associating |
| * so the firmware knows. If we're already associated, then use the old |
| * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC |
| * branch for disassociation below. |
| */ |
| if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) |
| memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); |
| |
| ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); |
| if (ret) |
| IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); |
| |
| /* after sending it once, adopt mac80211 data */ |
| memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); |
| mvmvif->associated = bss_conf->assoc; |
| |
| if (changes & BSS_CHANGED_ASSOC) { |
| if (bss_conf->assoc) { |
| /* clear statistics to get clean beacon counter */ |
| iwl_mvm_request_statistics(mvm, true); |
| memset(&mvmvif->beacon_stats, 0, |
| sizeof(mvmvif->beacon_stats)); |
| |
| /* add quota for this interface */ |
| ret = iwl_mvm_update_quotas(mvm, true, NULL); |
| if (ret) { |
| IWL_ERR(mvm, "failed to update quotas\n"); |
| return; |
| } |
| |
| if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, |
| &mvm->status)) { |
| /* |
| * If we're restarting then the firmware will |
| * obviously have lost synchronisation with |
| * the AP. It will attempt to synchronise by |
| * itself, but we can make it more reliable by |
| * scheduling a session protection time event. |
| * |
| * The firmware needs to receive a beacon to |
| * catch up with synchronisation, use 110% of |
| * the beacon interval. |
| * |
| * Set a large maximum delay to allow for more |
| * than a single interface. |
| */ |
| u32 dur = (11 * vif->bss_conf.beacon_int) / 10; |
| iwl_mvm_protect_session(mvm, vif, dur, dur, |
| 5 * dur, false); |
| } |
| |
| iwl_mvm_sf_update(mvm, vif, false); |
| iwl_mvm_power_vif_assoc(mvm, vif); |
| if (vif->p2p) { |
| iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT); |
| iwl_mvm_update_smps(mvm, vif, |
| IWL_MVM_SMPS_REQ_PROT, |
| IEEE80211_SMPS_DYNAMIC); |
| } |
| } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { |
| /* |
| * If update fails - SF might be running in associated |
| * mode while disassociated - which is forbidden. |
| */ |
| WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false), |
| "Failed to update SF upon disassociation\n"); |
| |
| /* remove AP station now that the MAC is unassoc */ |
| ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id); |
| if (ret) |
| IWL_ERR(mvm, "failed to remove AP station\n"); |
| |
| if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) |
| mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; |
| mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; |
| /* remove quota for this interface */ |
| ret = iwl_mvm_update_quotas(mvm, false, NULL); |
| if (ret) |
| IWL_ERR(mvm, "failed to update quotas\n"); |
| |
| if (vif->p2p) |
| iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT); |
| |
| /* this will take the cleared BSSID from bss_conf */ |
| ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
| if (ret) |
| IWL_ERR(mvm, |
| "failed to update MAC %pM (clear after unassoc)\n", |
| vif->addr); |
| } |
| |
| /* |
| * The firmware tracks the MU-MIMO group on its own. |
| * However, on HW restart we should restore this data. |
| */ |
| if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && |
| (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) { |
| ret = iwl_mvm_update_mu_groups(mvm, vif); |
| if (ret) |
| IWL_ERR(mvm, |
| "failed to update VHT MU_MIMO groups\n"); |
| } |
| |
| iwl_mvm_recalc_multicast(mvm); |
| iwl_mvm_configure_bcast_filter(mvm); |
| |
| /* reset rssi values */ |
| mvmvif->bf_data.ave_beacon_signal = 0; |
| |
| iwl_mvm_bt_coex_vif_change(mvm); |
| iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, |
| IEEE80211_SMPS_AUTOMATIC); |
| if (fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_UMAC_SCAN)) |
| iwl_mvm_config_scan(mvm); |
| } else if (changes & BSS_CHANGED_BEACON_INFO) { |
| /* |
| * We received a beacon _after_ association so |
| * remove the session protection. |
| */ |
| iwl_mvm_remove_time_event(mvm, mvmvif, |
| &mvmvif->time_event_data); |
| } |
| |
| if (changes & BSS_CHANGED_BEACON_INFO) { |
| iwl_mvm_sf_update(mvm, vif, false); |
| WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); |
| } |
| |
| if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | |
| /* |
| * Send power command on every beacon change, |
| * because we may have not enabled beacon abort yet. |
| */ |
| BSS_CHANGED_BEACON_INFO)) { |
| ret = iwl_mvm_power_update_mac(mvm); |
| if (ret) |
| IWL_ERR(mvm, "failed to update power mode\n"); |
| } |
| |
| if (changes & BSS_CHANGED_TXPOWER) { |
| IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", |
| bss_conf->txpower); |
| iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); |
| } |
| |
| if (changes & BSS_CHANGED_CQM) { |
| IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); |
| /* reset cqm events tracking */ |
| mvmvif->bf_data.last_cqm_event = 0; |
| if (mvmvif->bf_data.bf_enabled) { |
| ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); |
| if (ret) |
| IWL_ERR(mvm, |
| "failed to update CQM thresholds\n"); |
| } |
| } |
| |
| if (changes & BSS_CHANGED_ARP_FILTER) { |
| IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); |
| iwl_mvm_configure_bcast_filter(mvm); |
| } |
| } |
| |
| static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| int ret; |
| |
| /* |
| * iwl_mvm_mac_ctxt_add() might read directly from the device |
| * (the system time), so make sure it is available. |
| */ |
| ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP); |
| if (ret) |
| return ret; |
| |
| mutex_lock(&mvm->mutex); |
| |
| /* Send the beacon template */ |
| ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); |
| if (ret) |
| goto out_unlock; |
| |
| /* |
| * Re-calculate the tsf id, as the master-slave relations depend on the |
| * beacon interval, which was not known when the AP interface was added. |
| */ |
| if (vif->type == NL80211_IFTYPE_AP) |
| iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); |
| |
| mvmvif->ap_assoc_sta_count = 0; |
| |
| /* Add the mac context */ |
| ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
| if (ret) |
| goto out_unlock; |
| |
| /* Perform the binding */ |
| ret = iwl_mvm_binding_add_vif(mvm, vif); |
| if (ret) |
| goto out_remove; |
| |
| /* Send the bcast station. At this stage the TBTT and DTIM time events |
| * are added and applied to the scheduler */ |
| ret = iwl_mvm_send_add_bcast_sta(mvm, vif); |
| if (ret) |
| goto out_unbind; |
| |
| /* must be set before quota calculations */ |
| mvmvif->ap_ibss_active = true; |
| |
| /* power updated needs to be done before quotas */ |
| iwl_mvm_power_update_mac(mvm); |
| |
| ret = iwl_mvm_update_quotas(mvm, false, NULL); |
| if (ret) |
| goto out_quota_failed; |
| |
| /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
| if (vif->p2p && mvm->p2p_device_vif) |
| iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); |
| |
| iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS); |
| |
| iwl_mvm_bt_coex_vif_change(mvm); |
| |
| /* we don't support TDLS during DCM */ |
| if (iwl_mvm_phy_ctx_count(mvm) > 1) |
| iwl_mvm_teardown_tdls_peers(mvm); |
| |
| goto out_unlock; |
| |
| out_quota_failed: |
| iwl_mvm_power_update_mac(mvm); |
| mvmvif->ap_ibss_active = false; |
| iwl_mvm_send_rm_bcast_sta(mvm, vif); |
| out_unbind: |
| iwl_mvm_binding_remove_vif(mvm, vif); |
| out_remove: |
| iwl_mvm_mac_ctxt_remove(mvm, vif); |
| out_unlock: |
| mutex_unlock(&mvm->mutex); |
| iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP); |
| return ret; |
| } |
| |
| static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| |
| iwl_mvm_prepare_mac_removal(mvm, vif); |
| |
| mutex_lock(&mvm->mutex); |
| |
| /* Handle AP stop while in CSA */ |
| if (rcu_access_pointer(mvm->csa_vif) == vif) { |
| iwl_mvm_remove_time_event(mvm, mvmvif, |
| &mvmvif->time_event_data); |
| RCU_INIT_POINTER(mvm->csa_vif, NULL); |
| mvmvif->csa_countdown = false; |
| } |
| |
| if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { |
| RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); |
| mvm->csa_tx_block_bcn_timeout = 0; |
| } |
| |
| mvmvif->ap_ibss_active = false; |
| mvm->ap_last_beacon_gp2 = 0; |
| |
| iwl_mvm_bt_coex_vif_change(mvm); |
| |
| iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS); |
| |
| /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
| if (vif->p2p && mvm->p2p_device_vif) |
| iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); |
| |
| iwl_mvm_update_quotas(mvm, false, NULL); |
| iwl_mvm_send_rm_bcast_sta(mvm, vif); |
| iwl_mvm_binding_remove_vif(mvm, vif); |
| |
| iwl_mvm_power_update_mac(mvm); |
| |
| iwl_mvm_mac_ctxt_remove(mvm, vif); |
| |
| mutex_unlock(&mvm->mutex); |
| } |
| |
| static void |
| iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| struct ieee80211_bss_conf *bss_conf, |
| u32 changes) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| |
| /* Changes will be applied when the AP/IBSS is started */ |
| if (!mvmvif->ap_ibss_active) |
| return; |
| |
| if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | |
| BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && |
| iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) |
| IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); |
| |
| /* Need to send a new beacon template to the FW */ |
| if (changes & BSS_CHANGED_BEACON && |
| iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) |
| IWL_WARN(mvm, "Failed updating beacon data\n"); |
| |
| if (changes & BSS_CHANGED_TXPOWER) { |
| IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", |
| bss_conf->txpower); |
| iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); |
| } |
| } |
| |
| static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_bss_conf *bss_conf, |
| u32 changes) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| |
| /* |
| * iwl_mvm_bss_info_changed_station() might call |
| * iwl_mvm_protect_session(), which reads directly from |
| * the device (the system time), so make sure it is available. |
| */ |
| if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED)) |
| return; |
| |
| mutex_lock(&mvm->mutex); |
| |
| if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) |
| iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); |
| |
| switch (vif->type) { |
| case NL80211_IFTYPE_STATION: |
| iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); |
| break; |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_ADHOC: |
| iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); |
| break; |
| default: |
| /* shouldn't happen */ |
| WARN_ON_ONCE(1); |
| } |
| |
| mutex_unlock(&mvm->mutex); |
| iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED); |
| } |
| |
| static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_scan_request *hw_req) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| int ret; |
| |
| if (hw_req->req.n_channels == 0 || |
| hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) |
| return -EINVAL; |
| |
| mutex_lock(&mvm->mutex); |
| ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); |
| mutex_unlock(&mvm->mutex); |
| |
| return ret; |
| } |
| |
| static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| |
| mutex_lock(&mvm->mutex); |
| |
| /* Due to a race condition, it's possible that mac80211 asks |
| * us to stop a hw_scan when it's already stopped. This can |
| * happen, for instance, if we stopped the scan ourselves, |
| * called ieee80211_scan_completed() and the userspace called |
| * cancel scan scan before ieee80211_scan_work() could run. |
| * To handle that, simply return if the scan is not running. |
| */ |
| if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) |
| iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); |
| |
| mutex_unlock(&mvm->mutex); |
| } |
| |
| static void |
| iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, |
| struct ieee80211_sta *sta, u16 tids, |
| int num_frames, |
| enum ieee80211_frame_release_type reason, |
| bool more_data) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| |
| /* Called when we need to transmit (a) frame(s) from mac80211 */ |
| |
| iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, |
| tids, more_data, false); |
| } |
| |
| static void |
| iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, |
| struct ieee80211_sta *sta, u16 tids, |
| int num_frames, |
| enum ieee80211_frame_release_type reason, |
| bool more_data) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| |
| /* Called when we need to transmit (a) frame(s) from agg queue */ |
| |
| iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, |
| tids, more_data, true); |
| } |
| |
| static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| enum sta_notify_cmd cmd, |
| struct ieee80211_sta *sta) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); |
| unsigned long txqs = 0, tids = 0; |
| int tid; |
| |
| spin_lock_bh(&mvmsta->lock); |
| for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { |
| struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; |
| |
| if (tid_data->state != IWL_AGG_ON && |
| tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA) |
| continue; |
| |
| __set_bit(tid_data->txq_id, &txqs); |
| |
| if (iwl_mvm_tid_queued(tid_data) == 0) |
| continue; |
| |
| __set_bit(tid, &tids); |
| } |
| |
| switch (cmd) { |
| case STA_NOTIFY_SLEEP: |
| if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) |
| ieee80211_sta_block_awake(hw, sta, true); |
| |
| for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) |
| ieee80211_sta_set_buffered(sta, tid, true); |
| |
| if (txqs) |
| iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); |
| /* |
| * The fw updates the STA to be asleep. Tx packets on the Tx |
| * queues to this station will not be transmitted. The fw will |
| * send a Tx response with TX_STATUS_FAIL_DEST_PS. |
| */ |
| break; |
| case STA_NOTIFY_AWAKE: |
| if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT)) |
| break; |
| |
| if (txqs) |
| iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); |
| iwl_mvm_sta_modify_ps_wake(mvm, sta); |
| break; |
| default: |
| break; |
| } |
| spin_unlock_bh(&mvmsta->lock); |
| } |
| |
| static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); |
| |
| /* |
| * This is called before mac80211 does RCU synchronisation, |
| * so here we already invalidate our internal RCU-protected |
| * station pointer. The rest of the code will thus no longer |
| * be able to find the station this way, and we don't rely |
| * on further RCU synchronisation after the sta_state() |
| * callback deleted the station. |
| */ |
| mutex_lock(&mvm->mutex); |
| if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) |
| rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], |
| ERR_PTR(-ENOENT)); |
| |
| mutex_unlock(&mvm->mutex); |
| } |
| |
| static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
| const u8 *bssid) |
| { |
| if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) |
| return; |
| |
| if (vif->p2p && !iwl_mvm_is_p2p_standalone_uapsd_supported(mvm)) { |
| vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; |
| return; |
| } |
| |
| if (iwlwifi_mod_params.uapsd_disable) { |
| vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; |
| return; |
| } |
| |
| vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; |
| } |
| |
| static void |
| iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, u8 *peer_addr, |
| enum nl80211_tdls_operation action) |
| { |
| struct iwl_fw_dbg_trigger_tlv *trig; |
| struct iwl_fw_dbg_trigger_tdls *tdls_trig; |
| |
| if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS)) |
| return; |
| |
| trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS); |
| tdls_trig = (void *)trig->data; |
| if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) |
| return; |
| |
| if (!(tdls_trig->action_bitmap & BIT(action))) |
| return; |
| |
| if (tdls_trig->peer_mode && |
| memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) |
| return; |
| |
| iwl_mvm_fw_dbg_collect_trig(mvm, trig, |
| "TDLS event occurred, peer %pM, action %d", |
| peer_addr, action); |
| } |
| |
| static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta, |
| enum ieee80211_sta_state old_state, |
| enum ieee80211_sta_state new_state) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| int ret; |
| |
| IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", |
| sta->addr, old_state, new_state); |
| |
| /* this would be a mac80211 bug ... but don't crash */ |
| if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) |
| return -EINVAL; |
| |
| /* if a STA is being removed, reuse its ID */ |
| flush_work(&mvm->sta_drained_wk); |
| |
| mutex_lock(&mvm->mutex); |
| if (old_state == IEEE80211_STA_NOTEXIST && |
| new_state == IEEE80211_STA_NONE) { |
| /* |
| * Firmware bug - it'll crash if the beacon interval is less |
| * than 16. We can't avoid connecting at all, so refuse the |
| * station state change, this will cause mac80211 to abandon |
| * attempts to connect to this AP, and eventually wpa_s will |
| * blacklist the AP... |
| */ |
| if (vif->type == NL80211_IFTYPE_STATION && |
| vif->bss_conf.beacon_int < 16) { |
| IWL_ERR(mvm, |
| "AP %pM beacon interval is %d, refusing due to firmware bug!\n", |
| sta->addr, vif->bss_conf.beacon_int); |
| ret = -EINVAL; |
| goto out_unlock; |
| } |
| |
| if (sta->tdls && |
| (vif->p2p || |
| iwl_mvm_tdls_sta_count(mvm, NULL) == |
| IWL_MVM_TDLS_STA_COUNT || |
| iwl_mvm_phy_ctx_count(mvm) > 1)) { |
| IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); |
| ret = -EBUSY; |
| goto out_unlock; |
| } |
| |
| ret = iwl_mvm_add_sta(mvm, vif, sta); |
| if (sta->tdls && ret == 0) { |
| iwl_mvm_recalc_tdls_state(mvm, vif, true); |
| iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, |
| NL80211_TDLS_SETUP); |
| } |
| } else if (old_state == IEEE80211_STA_NONE && |
| new_state == IEEE80211_STA_AUTH) { |
| /* |
| * EBS may be disabled due to previous failures reported by FW. |
| * Reset EBS status here assuming environment has been changed. |
| */ |
| mvm->last_ebs_successful = true; |
| iwl_mvm_check_uapsd(mvm, vif, sta->addr); |
| ret = 0; |
| } else if (old_state == IEEE80211_STA_AUTH && |
| new_state == IEEE80211_STA_ASSOC) { |
| if (vif->type == NL80211_IFTYPE_AP) { |
| mvmvif->ap_assoc_sta_count++; |
| iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
| } |
| ret = iwl_mvm_update_sta(mvm, vif, sta); |
| if (ret == 0) |
| iwl_mvm_rs_rate_init(mvm, sta, |
| mvmvif->phy_ctxt->channel->band, |
| true); |
| } else if (old_state == IEEE80211_STA_ASSOC && |
| new_state == IEEE80211_STA_AUTHORIZED) { |
| |
| /* we don't support TDLS during DCM */ |
| if (iwl_mvm_phy_ctx_count(mvm) > 1) |
| iwl_mvm_teardown_tdls_peers(mvm); |
| |
| if (sta->tdls) |
| iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, |
| NL80211_TDLS_ENABLE_LINK); |
| |
| /* enable beacon filtering */ |
| WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); |
| ret = 0; |
| } else if (old_state == IEEE80211_STA_AUTHORIZED && |
| new_state == IEEE80211_STA_ASSOC) { |
| /* disable beacon filtering */ |
| WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0)); |
| ret = 0; |
| } else if (old_state == IEEE80211_STA_ASSOC && |
| new_state == IEEE80211_STA_AUTH) { |
| if (vif->type == NL80211_IFTYPE_AP) { |
| mvmvif->ap_assoc_sta_count--; |
| iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
| } |
| ret = 0; |
| } else if (old_state == IEEE80211_STA_AUTH && |
| new_state == IEEE80211_STA_NONE) { |
| ret = 0; |
| } else if (old_state == IEEE80211_STA_NONE && |
| new_state == IEEE80211_STA_NOTEXIST) { |
| ret = iwl_mvm_rm_sta(mvm, vif, sta); |
| if (sta->tdls) { |
| iwl_mvm_recalc_tdls_state(mvm, vif, false); |
| iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, |
| NL80211_TDLS_DISABLE_LINK); |
| } |
| } else { |
| ret = -EIO; |
| } |
| out_unlock: |
| mutex_unlock(&mvm->mutex); |
| |
| if (sta->tdls && ret == 0) { |
| if (old_state == IEEE80211_STA_NOTEXIST && |
| new_state == IEEE80211_STA_NONE) |
| ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); |
| else if (old_state == IEEE80211_STA_NONE && |
| new_state == IEEE80211_STA_NOTEXIST) |
| ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); |
| } |
| |
| return ret; |
| } |
| |
| static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| |
| mvm->rts_threshold = value; |
| |
| return 0; |
| } |
| |
| static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta, u32 changed) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| |
| if (vif->type == NL80211_IFTYPE_STATION && |
| changed & IEEE80211_RC_NSS_CHANGED) |
| iwl_mvm_sf_update(mvm, vif, false); |
| } |
| |
| static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, u16 ac, |
| const struct ieee80211_tx_queue_params *params) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| |
| mvmvif->queue_params[ac] = *params; |
| |
| /* |
| * No need to update right away, we'll get BSS_CHANGED_QOS |
| * The exception is P2P_DEVICE interface which needs immediate update. |
| */ |
| if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { |
| int ret; |
| |
| mutex_lock(&mvm->mutex); |
| ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
| mutex_unlock(&mvm->mutex); |
| return ret; |
| } |
| return 0; |
| } |
| |
| static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; |
| u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; |
| |
| if (WARN_ON_ONCE(vif->bss_conf.assoc)) |
| return; |
| |
| /* |
| * iwl_mvm_protect_session() reads directly from the device |
| * (the system time), so make sure it is available. |
| */ |
| if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX)) |
| return; |
| |
| mutex_lock(&mvm->mutex); |
| /* Try really hard to protect the session and hear a beacon */ |
| iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false); |
| mutex_unlock(&mvm->mutex); |
| |
| iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX); |
| } |
| |
| static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct cfg80211_sched_scan_request *req, |
| struct ieee80211_scan_ies *ies) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| |
| int ret; |
| |
| mutex_lock(&mvm->mutex); |
| |
| if (!vif->bss_conf.idle) { |
| ret = -EBUSY; |
| goto out; |
| } |
| |
| ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); |
| |
| out: |
| mutex_unlock(&mvm->mutex); |
| return ret; |
| } |
| |
| static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| int ret; |
| |
| mutex_lock(&mvm->mutex); |
| |
| /* Due to a race condition, it's possible that mac80211 asks |
| * us to stop a sched_scan when it's already stopped. This |
| * can happen, for instance, if we stopped the scan ourselves, |
| * called ieee80211_sched_scan_stopped() and the userspace called |
| * stop sched scan scan before ieee80211_sched_scan_stopped_work() |
| * could run. To handle this, simply return if the scan is |
| * not running. |
| */ |
| if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { |
| mutex_unlock(&mvm->mutex); |
| return 0; |
| } |
| |
| ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); |
| mutex_unlock(&mvm->mutex); |
| iwl_mvm_wait_for_async_handlers(mvm); |
| |
| return ret; |
| } |
| |
| static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, |
| enum set_key_cmd cmd, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta, |
| struct ieee80211_key_conf *key) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct iwl_mvm_sta *mvmsta; |
| struct iwl_mvm_key_pn *ptk_pn; |
| int keyidx = key->keyidx; |
| int ret; |
| u8 key_offset; |
| |
| if (iwlwifi_mod_params.sw_crypto) { |
| IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); |
| return -EOPNOTSUPP; |
| } |
| |
| switch (key->cipher) { |
| case WLAN_CIPHER_SUITE_TKIP: |
| key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; |
| key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; |
| break; |
| case WLAN_CIPHER_SUITE_CCMP: |
| key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; |
| break; |
| case WLAN_CIPHER_SUITE_AES_CMAC: |
| WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); |
| break; |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_WEP104: |
| /* For non-client mode, only use WEP keys for TX as we probably |
| * don't have a station yet anyway and would then have to keep |
| * track of the keys, linking them to each of the clients/peers |
| * as they appear. For now, don't do that, for performance WEP |
| * offload doesn't really matter much, but we need it for some |
| * other offload features in client mode. |
| */ |
| if (vif->type != NL80211_IFTYPE_STATION) |
| return 0; |
| break; |
| default: |
| /* currently FW supports only one optional cipher scheme */ |
| if (hw->n_cipher_schemes && |
| hw->cipher_schemes->cipher == key->cipher) |
| key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; |
| else |
| return -EOPNOTSUPP; |
| } |
| |
| mutex_lock(&mvm->mutex); |
| |
| switch (cmd) { |
| case SET_KEY: |
| if ((vif->type == NL80211_IFTYPE_ADHOC || |
| vif->type == NL80211_IFTYPE_AP) && !sta) { |
| /* |
| * GTK on AP interface is a TX-only key, return 0; |
| * on IBSS they're per-station and because we're lazy |
| * we don't support them for RX, so do the same. |
| * CMAC in AP/IBSS modes must be done in software. |
| */ |
| if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC) |
| ret = -EOPNOTSUPP; |
| else |
| ret = 0; |
| key->hw_key_idx = STA_KEY_IDX_INVALID; |
| break; |
| } |
| |
| /* During FW restart, in order to restore the state as it was, |
| * don't try to reprogram keys we previously failed for. |
| */ |
| if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && |
| key->hw_key_idx == STA_KEY_IDX_INVALID) { |
| IWL_DEBUG_MAC80211(mvm, |
| "skip invalid idx key programming during restart\n"); |
| ret = 0; |
| break; |
| } |
| |
| if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && |
| sta && iwl_mvm_has_new_rx_api(mvm) && |
| key->flags & IEEE80211_KEY_FLAG_PAIRWISE && |
| (key->cipher == WLAN_CIPHER_SUITE_CCMP || |
| key->cipher == WLAN_CIPHER_SUITE_GCMP)) { |
| struct ieee80211_key_seq seq; |
| int tid, q; |
| |
| mvmsta = iwl_mvm_sta_from_mac80211(sta); |
| WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); |
| ptk_pn = kzalloc(sizeof(*ptk_pn) + |
| mvm->trans->num_rx_queues * |
| sizeof(ptk_pn->q[0]), |
| GFP_KERNEL); |
| if (!ptk_pn) { |
| ret = -ENOMEM; |
| break; |
| } |
| |
| for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { |
| ieee80211_get_key_rx_seq(key, tid, &seq); |
| for (q = 0; q < mvm->trans->num_rx_queues; q++) |
| memcpy(ptk_pn->q[q].pn[tid], |
| seq.ccmp.pn, |
| IEEE80211_CCMP_PN_LEN); |
| } |
| |
| rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); |
| } |
| |
| /* in HW restart reuse the index, otherwise request a new one */ |
| if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) |
| key_offset = key->hw_key_idx; |
| else |
| key_offset = STA_KEY_IDX_INVALID; |
| |
| IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); |
| ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); |
| if (ret) { |
| IWL_WARN(mvm, "set key failed\n"); |
| /* |
| * can't add key for RX, but we don't need it |
| * in the device for TX so still return 0 |
| */ |
| key->hw_key_idx = STA_KEY_IDX_INVALID; |
| ret = 0; |
| } |
| |
| break; |
| case DISABLE_KEY: |
| if (key->hw_key_idx == STA_KEY_IDX_INVALID) { |
| ret = 0; |
| break; |
| } |
| |
| if (sta && iwl_mvm_has_new_rx_api(mvm) && |
| key->flags & IEEE80211_KEY_FLAG_PAIRWISE && |
| (key->cipher == WLAN_CIPHER_SUITE_CCMP || |
| key->cipher == WLAN_CIPHER_SUITE_GCMP)) { |
| mvmsta = iwl_mvm_sta_from_mac80211(sta); |
| ptk_pn = rcu_dereference_protected( |
| mvmsta->ptk_pn[keyidx], |
| lockdep_is_held(&mvm->mutex)); |
| RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); |
| if (ptk_pn) |
| kfree_rcu(ptk_pn, rcu_head); |
| } |
| |
| IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); |
| ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); |
| break; |
| default: |
| ret = -EINVAL; |
| } |
| |
| mutex_unlock(&mvm->mutex); |
| return ret; |
| } |
| |
| static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_key_conf *keyconf, |
| struct ieee80211_sta *sta, |
| u32 iv32, u16 *phase1key) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| |
| if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) |
| return; |
| |
| iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); |
| } |
| |
| |
| static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, |
| struct iwl_rx_packet *pkt, void *data) |
| { |
| struct iwl_mvm *mvm = |
| container_of(notif_wait, struct iwl_mvm, notif_wait); |
| struct iwl_hs20_roc_res *resp; |
| int resp_len = iwl_rx_packet_payload_len(pkt); |
| struct iwl_mvm_time_event_data *te_data = data; |
| |
| if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) |
| return true; |
| |
| if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { |
| IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); |
| return true; |
| } |
| |
| resp = (void *)pkt->data; |
| |
| IWL_DEBUG_TE(mvm, |
| "Aux ROC: Recieved response from ucode: status=%d uid=%d\n", |
| resp->status, resp->event_unique_id); |
| |
| te_data->uid = le32_to_cpu(resp->event_unique_id); |
| IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", |
| te_data->uid); |
| |
| spin_lock_bh(&mvm->time_event_lock); |
| list_add_tail(&te_data->list, &mvm->aux_roc_te_list); |
| spin_unlock_bh(&mvm->time_event_lock); |
| |
| return true; |
| } |
| |
| #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) |
| #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) |
| #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) |
| #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) |
| #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) |
| static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, |
| struct ieee80211_channel *channel, |
| struct ieee80211_vif *vif, |
| int duration) |
| { |
| int res, time_reg = DEVICE_SYSTEM_TIME_REG; |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; |
| static const u16 time_event_response[] = { HOT_SPOT_CMD }; |
| struct iwl_notification_wait wait_time_event; |
| u32 dtim_interval = vif->bss_conf.dtim_period * |
| vif->bss_conf.beacon_int; |
| u32 req_dur, delay; |
| struct iwl_hs20_roc_req aux_roc_req = { |
| .action = cpu_to_le32(FW_CTXT_ACTION_ADD), |
| .id_and_color = |
| cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), |
| .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), |
| /* Set the channel info data */ |
| .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ? |
| PHY_BAND_24 : PHY_BAND_5, |
| .channel_info.channel = channel->hw_value, |
| .channel_info.width = PHY_VHT_CHANNEL_MODE20, |
| /* Set the time and duration */ |
| .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)), |
| }; |
| |
| delay = AUX_ROC_MIN_DELAY; |
| req_dur = MSEC_TO_TU(duration); |
| |
| /* |
| * If we are associated we want the delay time to be at least one |
| * dtim interval so that the FW can wait until after the DTIM and |
| * then start the time event, this will potentially allow us to |
| * remain off-channel for the max duration. |
| * Since we want to use almost a whole dtim interval we would also |
| * like the delay to be for 2-3 dtim intervals, in case there are |
| * other time events with higher priority. |
| */ |
| if (vif->bss_conf.assoc) { |
| delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); |
| /* We cannot remain off-channel longer than the DTIM interval */ |
| if (dtim_interval <= req_dur) { |
| req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; |
| if (req_dur <= AUX_ROC_MIN_DURATION) |
| req_dur = dtim_interval - |
| AUX_ROC_MIN_SAFETY_BUFFER; |
| } |
| } |
| |
| aux_roc_req.duration = cpu_to_le32(req_dur); |
| aux_roc_req.apply_time_max_delay = cpu_to_le32(delay); |
| |
| IWL_DEBUG_TE(mvm, |
| "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", |
| channel->hw_value, req_dur, duration, delay, |
| dtim_interval); |
| /* Set the node address */ |
| memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN); |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| spin_lock_bh(&mvm->time_event_lock); |
| |
| if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { |
| spin_unlock_bh(&mvm->time_event_lock); |
| return -EIO; |
| } |
| |
| te_data->vif = vif; |
| te_data->duration = duration; |
| te_data->id = HOT_SPOT_CMD; |
| |
| spin_unlock_bh(&mvm->time_event_lock); |
| |
| /* |
| * Use a notification wait, which really just processes the |
| * command response and doesn't wait for anything, in order |
| * to be able to process the response and get the UID inside |
| * the RX path. Using CMD_WANT_SKB doesn't work because it |
| * stores the buffer and then wakes up this thread, by which |
| * time another notification (that the time event started) |
| * might already be processed unsuccessfully. |
| */ |
| iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, |
| time_event_response, |
| ARRAY_SIZE(time_event_response), |
| iwl_mvm_rx_aux_roc, te_data); |
| |
| res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req), |
| &aux_roc_req); |
| |
| if (res) { |
| IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); |
| iwl_remove_notification(&mvm->notif_wait, &wait_time_event); |
| goto out_clear_te; |
| } |
| |
| /* No need to wait for anything, so just pass 1 (0 isn't valid) */ |
| res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); |
| /* should never fail */ |
| WARN_ON_ONCE(res); |
| |
| if (res) { |
| out_clear_te: |
| spin_lock_bh(&mvm->time_event_lock); |
| iwl_mvm_te_clear_data(mvm, te_data); |
| spin_unlock_bh(&mvm->time_event_lock); |
| } |
| |
| return res; |
| } |
| |
| static int iwl_mvm_roc(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_channel *channel, |
| int duration, |
| enum ieee80211_roc_type type) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct cfg80211_chan_def chandef; |
| struct iwl_mvm_phy_ctxt *phy_ctxt; |
| int ret, i; |
| |
| IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, |
| duration, type); |
| |
| flush_work(&mvm->roc_done_wk); |
| |
| mutex_lock(&mvm->mutex); |
| |
| switch (vif->type) { |
| case NL80211_IFTYPE_STATION: |
| if (fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { |
| /* Use aux roc framework (HS20) */ |
| ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, |
| vif, duration); |
| goto out_unlock; |
| } |
| IWL_ERR(mvm, "hotspot not supported\n"); |
| ret = -EINVAL; |
| goto out_unlock; |
| case NL80211_IFTYPE_P2P_DEVICE: |
| /* handle below */ |
| break; |
| default: |
| IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); |
| ret = -EINVAL; |
| goto out_unlock; |
| } |
| |
| for (i = 0; i < NUM_PHY_CTX; i++) { |
| phy_ctxt = &mvm->phy_ctxts[i]; |
| if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) |
| continue; |
| |
| if (phy_ctxt->ref && channel == phy_ctxt->channel) { |
| /* |
| * Unbind the P2P_DEVICE from the current PHY context, |
| * and if the PHY context is not used remove it. |
| */ |
| ret = iwl_mvm_binding_remove_vif(mvm, vif); |
| if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) |
| goto out_unlock; |
| |
| iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
| |
| /* Bind the P2P_DEVICE to the current PHY Context */ |
| mvmvif->phy_ctxt = phy_ctxt; |
| |
| ret = iwl_mvm_binding_add_vif(mvm, vif); |
| if (WARN(ret, "Failed binding P2P_DEVICE\n")) |
| goto out_unlock; |
| |
| iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); |
| goto schedule_time_event; |
| } |
| } |
| |
| /* Need to update the PHY context only if the ROC channel changed */ |
| if (channel == mvmvif->phy_ctxt->channel) |
| goto schedule_time_event; |
| |
| cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); |
| |
| /* |
| * Change the PHY context configuration as it is currently referenced |
| * only by the P2P Device MAC |
| */ |
| if (mvmvif->phy_ctxt->ref == 1) { |
| ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, |
| &chandef, 1, 1); |
| if (ret) |
| goto out_unlock; |
| } else { |
| /* |
| * The PHY context is shared with other MACs. Need to remove the |
| * P2P Device from the binding, allocate an new PHY context and |
| * create a new binding |
| */ |
| phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
| if (!phy_ctxt) { |
| ret = -ENOSPC; |
| goto out_unlock; |
| } |
| |
| ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, |
| 1, 1); |
| if (ret) { |
| IWL_ERR(mvm, "Failed to change PHY context\n"); |
| goto out_unlock; |
| } |
| |
| /* Unbind the P2P_DEVICE from the current PHY context */ |
| ret = iwl_mvm_binding_remove_vif(mvm, vif); |
| if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) |
| goto out_unlock; |
| |
| iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
| |
| /* Bind the P2P_DEVICE to the new allocated PHY context */ |
| mvmvif->phy_ctxt = phy_ctxt; |
| |
| ret = iwl_mvm_binding_add_vif(mvm, vif); |
| if (WARN(ret, "Failed binding P2P_DEVICE\n")) |
| goto out_unlock; |
| |
| iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); |
| } |
| |
| schedule_time_event: |
| /* Schedule the time events */ |
| ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); |
| |
| out_unlock: |
| mutex_unlock(&mvm->mutex); |
| IWL_DEBUG_MAC80211(mvm, "leave\n"); |
| return ret; |
| } |
| |
| static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| |
| IWL_DEBUG_MAC80211(mvm, "enter\n"); |
| |
| mutex_lock(&mvm->mutex); |
| iwl_mvm_stop_roc(mvm); |
| mutex_unlock(&mvm->mutex); |
| |
| IWL_DEBUG_MAC80211(mvm, "leave\n"); |
| return 0; |
| } |
| |
| static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, |
| struct ieee80211_chanctx_conf *ctx) |
| { |
| u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
| struct iwl_mvm_phy_ctxt *phy_ctxt; |
| int ret; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); |
| |
| phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
| if (!phy_ctxt) { |
| ret = -ENOSPC; |
| goto out; |
| } |
| |
| ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
| ctx->rx_chains_static, |
| ctx->rx_chains_dynamic); |
| if (ret) { |
| IWL_ERR(mvm, "Failed to add PHY context\n"); |
| goto out; |
| } |
| |
| iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); |
| *phy_ctxt_id = phy_ctxt->id; |
| out: |
| return ret; |
| } |
| |
| static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, |
| struct ieee80211_chanctx_conf *ctx) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| int ret; |
| |
| mutex_lock(&mvm->mutex); |
| ret = __iwl_mvm_add_chanctx(mvm, ctx); |
| mutex_unlock(&mvm->mutex); |
| |
| return ret; |
| } |
| |
| static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, |
| struct ieee80211_chanctx_conf *ctx) |
| { |
| u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
| struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); |
| } |
| |
| static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, |
| struct ieee80211_chanctx_conf *ctx) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| |
| mutex_lock(&mvm->mutex); |
| __iwl_mvm_remove_chanctx(mvm, ctx); |
| mutex_unlock(&mvm->mutex); |
| } |
| |
| static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, |
| struct ieee80211_chanctx_conf *ctx, |
| u32 changed) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
| struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; |
| |
| if (WARN_ONCE((phy_ctxt->ref > 1) && |
| (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | |
| IEEE80211_CHANCTX_CHANGE_RX_CHAINS | |
| IEEE80211_CHANCTX_CHANGE_RADAR | |
| IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), |
| "Cannot change PHY. Ref=%d, changed=0x%X\n", |
| phy_ctxt->ref, changed)) |
| return; |
| |
| mutex_lock(&mvm->mutex); |
| iwl_mvm_bt_coex_vif_change(mvm); |
| iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
| ctx->rx_chains_static, |
| ctx->rx_chains_dynamic); |
| mutex_unlock(&mvm->mutex); |
| } |
| |
| static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| struct ieee80211_chanctx_conf *ctx, |
| bool switching_chanctx) |
| { |
| u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
| struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| int ret; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| mvmvif->phy_ctxt = phy_ctxt; |
| |
| switch (vif->type) { |
| case NL80211_IFTYPE_AP: |
| /* only needed if we're switching chanctx (i.e. during CSA) */ |
| if (switching_chanctx) { |
| mvmvif->ap_ibss_active = true; |
| break; |
| } |
| case NL80211_IFTYPE_ADHOC: |
| /* |
| * The AP binding flow is handled as part of the start_ap flow |
| * (in bss_info_changed), similarly for IBSS. |
| */ |
| ret = 0; |
| goto out; |
| case NL80211_IFTYPE_STATION: |
| break; |
| case NL80211_IFTYPE_MONITOR: |
| /* always disable PS when a monitor interface is active */ |
| mvmvif->ps_disabled = true; |
| break; |
| default: |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| ret = iwl_mvm_binding_add_vif(mvm, vif); |
| if (ret) |
| goto out; |
| |
| /* |
| * Power state must be updated before quotas, |
| * otherwise fw will complain. |
| */ |
| iwl_mvm_power_update_mac(mvm); |
| |
| /* Setting the quota at this stage is only required for monitor |
| * interfaces. For the other types, the bss_info changed flow |
| * will handle quota settings. |
| */ |
| if (vif->type == NL80211_IFTYPE_MONITOR) { |
| mvmvif->monitor_active = true; |
| ret = iwl_mvm_update_quotas(mvm, false, NULL); |
| if (ret) |
| goto out_remove_binding; |
| |
| ret = iwl_mvm_add_snif_sta(mvm, vif); |
| if (ret) |
| goto out_remove_binding; |
| |
| } |
| |
| /* Handle binding during CSA */ |
| if (vif->type == NL80211_IFTYPE_AP) { |
| iwl_mvm_update_quotas(mvm, false, NULL); |
| iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
| } |
| |
| if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { |
| u32 duration = 2 * vif->bss_conf.beacon_int; |
| |
| /* iwl_mvm_protect_session() reads directly from the |
| * device (the system time), so make sure it is |
| * available. |
| */ |
| ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA); |
| if (ret) |
| goto out_remove_binding; |
| |
| /* Protect the session to make sure we hear the first |
| * beacon on the new channel. |
| */ |
| iwl_mvm_protect_session(mvm, vif, duration, duration, |
| vif->bss_conf.beacon_int / 2, |
| true); |
| |
| iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA); |
| |
| iwl_mvm_update_quotas(mvm, false, NULL); |
| } |
| |
| goto out; |
| |
| out_remove_binding: |
| iwl_mvm_binding_remove_vif(mvm, vif); |
| iwl_mvm_power_update_mac(mvm); |
| out: |
| if (ret) |
| mvmvif->phy_ctxt = NULL; |
| return ret; |
| } |
| static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_chanctx_conf *ctx) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| int ret; |
| |
| mutex_lock(&mvm->mutex); |
| ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); |
| mutex_unlock(&mvm->mutex); |
| |
| return ret; |
| } |
| |
| static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| struct ieee80211_chanctx_conf *ctx, |
| bool switching_chanctx) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct ieee80211_vif *disabled_vif = NULL; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); |
| |
| switch (vif->type) { |
| case NL80211_IFTYPE_ADHOC: |
| goto out; |
| case NL80211_IFTYPE_MONITOR: |
| mvmvif->monitor_active = false; |
| mvmvif->ps_disabled = false; |
| iwl_mvm_rm_snif_sta(mvm, vif); |
| break; |
| case NL80211_IFTYPE_AP: |
| /* This part is triggered only during CSA */ |
| if (!switching_chanctx || !mvmvif->ap_ibss_active) |
| goto out; |
| |
| mvmvif->csa_countdown = false; |
| |
| /* Set CS bit on all the stations */ |
| iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); |
| |
| /* Save blocked iface, the timeout is set on the next beacon */ |
| rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); |
| |
| mvmvif->ap_ibss_active = false; |
| break; |
| case NL80211_IFTYPE_STATION: |
| if (!switching_chanctx) |
| break; |
| |
| disabled_vif = vif; |
| |
| iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); |
| break; |
| default: |
| break; |
| } |
| |
| iwl_mvm_update_quotas(mvm, false, disabled_vif); |
| iwl_mvm_binding_remove_vif(mvm, vif); |
| |
| out: |
| mvmvif->phy_ctxt = NULL; |
| iwl_mvm_power_update_mac(mvm); |
| } |
| |
| static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_chanctx_conf *ctx) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| |
| mutex_lock(&mvm->mutex); |
| __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); |
| mutex_unlock(&mvm->mutex); |
| } |
| |
| static int |
| iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, |
| struct ieee80211_vif_chanctx_switch *vifs) |
| { |
| int ret; |
| |
| mutex_lock(&mvm->mutex); |
| __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); |
| __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); |
| |
| ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); |
| if (ret) { |
| IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); |
| goto out_reassign; |
| } |
| |
| ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, |
| true); |
| if (ret) { |
| IWL_ERR(mvm, |
| "failed to assign new_ctx during channel switch\n"); |
| goto out_remove; |
| } |
| |
| /* we don't support TDLS during DCM - can be caused by channel switch */ |
| if (iwl_mvm_phy_ctx_count(mvm) > 1) |
| iwl_mvm_teardown_tdls_peers(mvm); |
| |
| goto out; |
| |
| out_remove: |
| __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); |
| |
| out_reassign: |
| if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { |
| IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); |
| goto out_restart; |
| } |
| |
| if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, |
| true)) { |
| IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); |
| goto out_restart; |
| } |
| |
| goto out; |
| |
| out_restart: |
| /* things keep failing, better restart the hw */ |
| iwl_mvm_nic_restart(mvm, false); |
| |
| out: |
| mutex_unlock(&mvm->mutex); |
| |
| return ret; |
| } |
| |
| static int |
| iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, |
| struct ieee80211_vif_chanctx_switch *vifs) |
| { |
| int ret; |
| |
| mutex_lock(&mvm->mutex); |
| __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); |
| |
| ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, |
| true); |
| if (ret) { |
| IWL_ERR(mvm, |
| "failed to assign new_ctx during channel switch\n"); |
| goto out_reassign; |
| } |
| |
| goto out; |
| |
| out_reassign: |
| if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, |
| true)) { |
| IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); |
| goto out_restart; |
| } |
| |
| goto out; |
| |
| out_restart: |
| /* things keep failing, better restart the hw */ |
| iwl_mvm_nic_restart(mvm, false); |
| |
| out: |
| mutex_unlock(&mvm->mutex); |
| |
| return ret; |
| } |
| |
| static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, |
| struct ieee80211_vif_chanctx_switch *vifs, |
| int n_vifs, |
| enum ieee80211_chanctx_switch_mode mode) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| int ret; |
| |
| /* we only support a single-vif right now */ |
| if (n_vifs > 1) |
| return -EOPNOTSUPP; |
| |
| switch (mode) { |
| case CHANCTX_SWMODE_SWAP_CONTEXTS: |
| ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); |
| break; |
| case CHANCTX_SWMODE_REASSIGN_VIF: |
| ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); |
| break; |
| default: |
| ret = -EOPNOTSUPP; |
| break; |
| } |
| |
| return ret; |
| } |
| |
| static int iwl_mvm_set_tim(struct ieee80211_hw *hw, |
| struct ieee80211_sta *sta, |
| bool set) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); |
| |
| if (!mvm_sta || !mvm_sta->vif) { |
| IWL_ERR(mvm, "Station is not associated to a vif\n"); |
| return -EINVAL; |
| } |
| |
| return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); |
| } |
| |
| #ifdef CONFIG_NL80211_TESTMODE |
| static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { |
| [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, |
| [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, |
| [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, |
| }; |
| |
| static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| void *data, int len) |
| { |
| struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; |
| int err; |
| u32 noa_duration; |
| |
| err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy); |
| if (err) |
| return err; |
| |
| if (!tb[IWL_MVM_TM_ATTR_CMD]) |
| return -EINVAL; |
| |
| switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { |
| case IWL_MVM_TM_CMD_SET_NOA: |
| if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || |
| !vif->bss_conf.enable_beacon || |
| !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) |
| return -EINVAL; |
| |
| noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); |
| if (noa_duration >= vif->bss_conf.beacon_int) |
| return -EINVAL; |
| |
| mvm->noa_duration = noa_duration; |
| mvm->noa_vif = vif; |
| |
| return iwl_mvm_update_quotas(mvm, false, NULL); |
| case IWL_MVM_TM_CMD_SET_BEACON_FILTER: |
| /* must be associated client vif - ignore authorized */ |
| if (!vif || vif->type != NL80211_IFTYPE_STATION || |
| !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || |
| !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) |
| return -EINVAL; |
| |
| if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) |
| return iwl_mvm_enable_beacon_filter(mvm, vif, 0); |
| return iwl_mvm_disable_beacon_filter(mvm, vif, 0); |
| } |
| |
| return -EOPNOTSUPP; |
| } |
| |
| static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| void *data, int len) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| int err; |
| |
| mutex_lock(&mvm->mutex); |
| err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); |
| mutex_unlock(&mvm->mutex); |
| |
| return err; |
| } |
| #endif |
| |
| static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_channel_switch *chsw) |
| { |
| /* By implementing this operation, we prevent mac80211 from |
| * starting its own channel switch timer, so that we can call |
| * ieee80211_chswitch_done() ourselves at the right time |
| * (which is when the absence time event starts). |
| */ |
| |
| IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), |
| "dummy channel switch op\n"); |
| } |
| |
| static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_channel_switch *chsw) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct ieee80211_vif *csa_vif; |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| u32 apply_time; |
| int ret; |
| |
| mutex_lock(&mvm->mutex); |
| |
| mvmvif->csa_failed = false; |
| |
| IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", |
| chsw->chandef.center_freq1); |
| |
| iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH); |
| |
| switch (vif->type) { |
| case NL80211_IFTYPE_AP: |
| csa_vif = |
| rcu_dereference_protected(mvm->csa_vif, |
| lockdep_is_held(&mvm->mutex)); |
| if (WARN_ONCE(csa_vif && csa_vif->csa_active, |
| "Another CSA is already in progress")) { |
| ret = -EBUSY; |
| goto out_unlock; |
| } |
| |
| rcu_assign_pointer(mvm->csa_vif, vif); |
| |
| if (WARN_ONCE(mvmvif->csa_countdown, |
| "Previous CSA countdown didn't complete")) { |
| ret = -EBUSY; |
| goto out_unlock; |
| } |
| |
| break; |
| case NL80211_IFTYPE_STATION: |
| /* Schedule the time event to a bit before beacon 1, |
| * to make sure we're in the new channel when the |
| * GO/AP arrives. |
| */ |
| apply_time = chsw->device_timestamp + |
| ((vif->bss_conf.beacon_int * (chsw->count - 1) - |
| IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); |
| |
| if (chsw->block_tx) |
| iwl_mvm_csa_client_absent(mvm, vif); |
| |
| iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, |
| apply_time); |
| if (mvmvif->bf_data.bf_enabled) { |
| ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); |
| if (ret) |
| goto out_unlock; |
| } |
| |
| break; |
| default: |
| break; |
| } |
| |
| mvmvif->ps_disabled = true; |
| |
| ret = iwl_mvm_power_update_ps(mvm); |
| if (ret) |
| goto out_unlock; |
| |
| /* we won't be on this channel any longer */ |
| iwl_mvm_teardown_tdls_peers(mvm); |
| |
| out_unlock: |
| mutex_unlock(&mvm->mutex); |
| |
| return ret; |
| } |
| |
| static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| int ret; |
| |
| mutex_lock(&mvm->mutex); |
| |
| if (mvmvif->csa_failed) { |
| mvmvif->csa_failed = false; |
| ret = -EIO; |
| goto out_unlock; |
| } |
| |
| if (vif->type == NL80211_IFTYPE_STATION) { |
| struct iwl_mvm_sta *mvmsta; |
| |
| mvmsta = iwl_mvm_sta_from_staid_protected(mvm, |
| mvmvif->ap_sta_id); |
| |
| if (WARN_ON(!mvmsta)) { |
| ret = -EIO; |
| goto out_unlock; |
| } |
| |
| iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); |
| |
| iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
| |
| ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); |
| if (ret) |
| goto out_unlock; |
| |
| iwl_mvm_stop_session_protection(mvm, vif); |
| } |
| |
| mvmvif->ps_disabled = false; |
| |
| ret = iwl_mvm_power_update_ps(mvm); |
| |
| out_unlock: |
| mutex_unlock(&mvm->mutex); |
| |
| return ret; |
| } |
| |
| static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, u32 queues, bool drop) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct iwl_mvm_vif *mvmvif; |
| struct iwl_mvm_sta *mvmsta; |
| struct ieee80211_sta *sta; |
| int i; |
| u32 msk = 0; |
| |
| if (!vif || vif->type != NL80211_IFTYPE_STATION) |
| return; |
| |
| mutex_lock(&mvm->mutex); |
| mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| |
| /* flush the AP-station and all TDLS peers */ |
| for (i = 0; i < IWL_MVM_STATION_COUNT; i++) { |
| sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], |
| lockdep_is_held(&mvm->mutex)); |
| if (IS_ERR_OR_NULL(sta)) |
| continue; |
| |
| mvmsta = iwl_mvm_sta_from_mac80211(sta); |
| if (mvmsta->vif != vif) |
| continue; |
| |
| /* make sure only TDLS peers or the AP are flushed */ |
| WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); |
| |
| msk |= mvmsta->tfd_queue_msk; |
| } |
| |
| if (drop) { |
| if (iwl_mvm_flush_tx_path(mvm, msk, 0)) |
| IWL_ERR(mvm, "flush request fail\n"); |
| mutex_unlock(&mvm->mutex); |
| } else { |
| mutex_unlock(&mvm->mutex); |
| |
| /* this can take a while, and we may need/want other operations |
| * to succeed while doing this, so do it without the mutex held |
| */ |
| iwl_trans_wait_tx_queue_empty(mvm->trans, msk); |
| } |
| } |
| |
| static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, |
| struct survey_info *survey) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| int ret; |
| |
| memset(survey, 0, sizeof(*survey)); |
| |
| /* only support global statistics right now */ |
| if (idx != 0) |
| return -ENOENT; |
| |
| if (fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) |
| return -ENOENT; |
| |
| mutex_lock(&mvm->mutex); |
| |
| if (mvm->ucode_loaded) { |
| ret = iwl_mvm_request_statistics(mvm, false); |
| if (ret) |
| goto out; |
| } |
| |
| survey->filled = SURVEY_INFO_TIME | |
| SURVEY_INFO_TIME_RX | |
| SURVEY_INFO_TIME_TX | |
| SURVEY_INFO_TIME_SCAN; |
| survey->time = mvm->accu_radio_stats.on_time_rf + |
| mvm->radio_stats.on_time_rf; |
| do_div(survey->time, USEC_PER_MSEC); |
| |
| survey->time_rx = mvm->accu_radio_stats.rx_time + |
| mvm->radio_stats.rx_time; |
| do_div(survey->time_rx, USEC_PER_MSEC); |
| |
| survey->time_tx = mvm->accu_radio_stats.tx_time + |
| mvm->radio_stats.tx_time; |
| do_div(survey->time_tx, USEC_PER_MSEC); |
| |
| survey->time_scan = mvm->accu_radio_stats.on_time_scan + |
| mvm->radio_stats.on_time_scan; |
| do_div(survey->time_scan, USEC_PER_MSEC); |
| |
| ret = 0; |
| out: |
| mutex_unlock(&mvm->mutex); |
| return ret; |
| } |
| |
| static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta, |
| struct station_info *sinfo) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); |
| |
| if (fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) |
| return; |
| |
| /* if beacon filtering isn't on mac80211 does it anyway */ |
| if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) |
| return; |
| |
| if (!vif->bss_conf.assoc) |
| return; |
| |
| mutex_lock(&mvm->mutex); |
| |
| if (mvmvif->ap_sta_id != mvmsta->sta_id) |
| goto unlock; |
| |
| if (iwl_mvm_request_statistics(mvm, false)) |
| goto unlock; |
| |
| sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + |
| mvmvif->beacon_stats.accu_num_beacons; |
| sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX); |
| if (mvmvif->beacon_stats.avg_signal) { |
| /* firmware only reports a value after RXing a few beacons */ |
| sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; |
| sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG); |
| } |
| unlock: |
| mutex_unlock(&mvm->mutex); |
| } |
| |
| static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| const struct ieee80211_event *event) |
| { |
| #define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \ |
| do { \ |
| if ((_cnt) && --(_cnt)) \ |
| break; \ |
| iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\ |
| } while (0) |
| |
| struct iwl_fw_dbg_trigger_tlv *trig; |
| struct iwl_fw_dbg_trigger_mlme *trig_mlme; |
| |
| if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME)) |
| return; |
| |
| trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME); |
| trig_mlme = (void *)trig->data; |
| if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) |
| return; |
| |
| if (event->u.mlme.data == ASSOC_EVENT) { |
| if (event->u.mlme.status == MLME_DENIED) |
| CHECK_MLME_TRIGGER(mvm, trig, buf, |
| trig_mlme->stop_assoc_denied, |
| "DENIED ASSOC: reason %d", |
| event->u.mlme.reason); |
| else if (event->u.mlme.status == MLME_TIMEOUT) |
| CHECK_MLME_TRIGGER(mvm, trig, buf, |
| trig_mlme->stop_assoc_timeout, |
| "ASSOC TIMEOUT"); |
| } else if (event->u.mlme.data == AUTH_EVENT) { |
| if (event->u.mlme.status == MLME_DENIED) |
| CHECK_MLME_TRIGGER(mvm, trig, buf, |
| trig_mlme->stop_auth_denied, |
| "DENIED AUTH: reason %d", |
| event->u.mlme.reason); |
| else if (event->u.mlme.status == MLME_TIMEOUT) |
| CHECK_MLME_TRIGGER(mvm, trig, buf, |
| trig_mlme->stop_auth_timeout, |
| "AUTH TIMEOUT"); |
| } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { |
| CHECK_MLME_TRIGGER(mvm, trig, buf, |
| trig_mlme->stop_rx_deauth, |
| "DEAUTH RX %d", event->u.mlme.reason); |
| } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { |
| CHECK_MLME_TRIGGER(mvm, trig, buf, |
| trig_mlme->stop_tx_deauth, |
| "DEAUTH TX %d", event->u.mlme.reason); |
| } |
| #undef CHECK_MLME_TRIGGER |
| } |
| |
| static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| const struct ieee80211_event *event) |
| { |
| struct iwl_fw_dbg_trigger_tlv *trig; |
| struct iwl_fw_dbg_trigger_ba *ba_trig; |
| |
| if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) |
| return; |
| |
| trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); |
| ba_trig = (void *)trig->data; |
| if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) |
| return; |
| |
| if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) |
| return; |
| |
| iwl_mvm_fw_dbg_collect_trig(mvm, trig, |
| "BAR received from %pM, tid %d, ssn %d", |
| event->u.ba.sta->addr, event->u.ba.tid, |
| event->u.ba.ssn); |
| } |
| |
| static void |
| iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| const struct ieee80211_event *event) |
| { |
| struct iwl_fw_dbg_trigger_tlv *trig; |
| struct iwl_fw_dbg_trigger_ba *ba_trig; |
| |
| if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) |
| return; |
| |
| trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); |
| ba_trig = (void *)trig->data; |
| if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) |
| return; |
| |
| if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid))) |
| return; |
| |
| iwl_mvm_fw_dbg_collect_trig(mvm, trig, |
| "Frame from %pM timed out, tid %d", |
| event->u.ba.sta->addr, event->u.ba.tid); |
| } |
| |
| static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| const struct ieee80211_event *event) |
| { |
| struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| |
| switch (event->type) { |
| case MLME_EVENT: |
| iwl_mvm_event_mlme_callback(mvm, vif, event); |
| break; |
| case BAR_RX_EVENT: |
| iwl_mvm_event_bar_rx_callback(mvm, vif, event); |
| break; |
| case BA_FRAME_TIMEOUT: |
| iwl_mvm_event_frame_timeout_callback(mvm, vif, event); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| const struct ieee80211_ops iwl_mvm_hw_ops = { |
| .tx = iwl_mvm_mac_tx, |
| .ampdu_action = iwl_mvm_mac_ampdu_action, |
| .start = iwl_mvm_mac_start, |
| .reconfig_complete = iwl_mvm_mac_reconfig_complete, |
| .stop = iwl_mvm_mac_stop, |
| .add_interface = iwl_mvm_mac_add_interface, |
| .remove_interface = iwl_mvm_mac_remove_interface, |
| .config = iwl_mvm_mac_config, |
| .prepare_multicast = iwl_mvm_prepare_multicast, |
| .configure_filter = iwl_mvm_configure_filter, |
| .config_iface_filter = iwl_mvm_config_iface_filter, |
| .bss_info_changed = iwl_mvm_bss_info_changed, |
| .hw_scan = iwl_mvm_mac_hw_scan, |
| .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, |
| .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, |
| .sta_state = iwl_mvm_mac_sta_state, |
| .sta_notify = iwl_mvm_mac_sta_notify, |
| .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, |
| .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, |
| .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, |
| .sta_rc_update = iwl_mvm_sta_rc_update, |
| .conf_tx = iwl_mvm_mac_conf_tx, |
| .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, |
| .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, |
| .flush = iwl_mvm_mac_flush, |
| .sched_scan_start = iwl_mvm_mac_sched_scan_start, |
| .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, |
| .set_key = iwl_mvm_mac_set_key, |
| .update_tkip_key = iwl_mvm_mac_update_tkip_key, |
| .remain_on_channel = iwl_mvm_roc, |
| .cancel_remain_on_channel = iwl_mvm_cancel_roc, |
| .add_chanctx = iwl_mvm_add_chanctx, |
| .remove_chanctx = iwl_mvm_remove_chanctx, |
| .change_chanctx = iwl_mvm_change_chanctx, |
| .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, |
| .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, |
| .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, |
| |
| .start_ap = iwl_mvm_start_ap_ibss, |
| .stop_ap = iwl_mvm_stop_ap_ibss, |
| .join_ibss = iwl_mvm_start_ap_ibss, |
| .leave_ibss = iwl_mvm_stop_ap_ibss, |
| |
| .set_tim = iwl_mvm_set_tim, |
| |
| .channel_switch = iwl_mvm_channel_switch, |
| .pre_channel_switch = iwl_mvm_pre_channel_switch, |
| .post_channel_switch = iwl_mvm_post_channel_switch, |
| |
| .tdls_channel_switch = iwl_mvm_tdls_channel_switch, |
| .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, |
| .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, |
| |
| .event_callback = iwl_mvm_mac_event_callback, |
| |
| CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) |
| |
| #ifdef CONFIG_PM_SLEEP |
| /* look at d3.c */ |
| .suspend = iwl_mvm_suspend, |
| .resume = iwl_mvm_resume, |
| .set_wakeup = iwl_mvm_set_wakeup, |
| .set_rekey_data = iwl_mvm_set_rekey_data, |
| #if IS_ENABLED(CONFIG_IPV6) |
| .ipv6_addr_change = iwl_mvm_ipv6_addr_change, |
| #endif |
| .set_default_unicast_key = iwl_mvm_set_default_unicast_key, |
| #endif |
| .get_survey = iwl_mvm_mac_get_survey, |
| .sta_statistics = iwl_mvm_mac_sta_statistics, |
| }; |