| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Johannes Berg | 8073 | 36.95% | 86 | 21.03% |
| Luciano Coelho | 2614 | 11.96% | 48 | 11.74% |
| Sara Sharon | 2195 | 10.05% | 42 | 10.27% |
| Eliad Peller | 1446 | 6.62% | 19 | 4.65% |
| Emmanuel Grumbach | 1437 | 6.58% | 50 | 12.22% |
| Ilan Peer | 1122 | 5.13% | 23 | 5.62% |
| David Spinadel | 789 | 3.61% | 16 | 3.91% |
| Andrei Otcheretianski | 629 | 2.88% | 12 | 2.93% |
| Arik Nemtsov | 535 | 2.45% | 20 | 4.89% |
| Ariej Marjieh | 498 | 2.28% | 1 | 0.24% |
| Liad Kaufman | 335 | 1.53% | 8 | 1.96% |
| Matti Gottlieb | 257 | 1.18% | 5 | 1.22% |
| Eran Harary | 221 | 1.01% | 2 | 0.49% |
| Ayala Beker | 188 | 0.86% | 3 | 0.73% |
| Avri Altman | 170 | 0.78% | 6 | 1.47% |
| Golan Ben-Ami | 146 | 0.67% | 2 | 0.49% |
| Gregory Greenman | 120 | 0.55% | 7 | 1.71% |
| striebit | 116 | 0.53% | 6 | 1.47% |
| Avraham Stern | 115 | 0.53% | 10 | 2.44% |
| Alexander Bondar | 108 | 0.49% | 10 | 2.44% |
| Haim Dreyfuss | 101 | 0.46% | 4 | 0.98% |
| Jonathan Doron | 94 | 0.43% | 1 | 0.24% |
| Lilach Edelstein | 82 | 0.38% | 1 | 0.24% |
| Hila Gonen | 76 | 0.35% | 1 | 0.24% |
| Tova Mussai | 70 | 0.32% | 1 | 0.24% |
| Naftali Goldstein | 48 | 0.22% | 3 | 0.73% |
| Max Stepanov | 46 | 0.21% | 3 | 0.73% |
| Roee Zamir | 45 | 0.21% | 1 | 0.24% |
| Eyal Shapira | 27 | 0.12% | 2 | 0.49% |
| Chaya Rachel Ivgy | 25 | 0.11% | 2 | 0.49% |
| Ido Yariv | 24 | 0.11% | 1 | 0.24% |
| Mordechai Goodstein | 18 | 0.08% | 2 | 0.49% |
| Aviya Erenfeld | 17 | 0.08% | 1 | 0.24% |
| Assaf Krauss | 17 | 0.08% | 1 | 0.24% |
| Shahar S Matityahu | 16 | 0.07% | 1 | 0.24% |
| Luis R. Rodriguez | 10 | 0.05% | 1 | 0.24% |
| Matt Chen | 6 | 0.03% | 1 | 0.24% |
| Kees Cook | 4 | 0.02% | 1 | 0.24% |
| Arend Van Spriel | 3 | 0.01% | 1 | 0.24% |
| Omer Efrat | 3 | 0.01% | 1 | 0.24% |
| Eytan Lifshitz | 2 | 0.01% | 1 | 0.24% |
| Nicholas Krause | 2 | 0.01% | 1 | 0.24% |
| Colin Ian King | 1 | 0.00% | 1 | 0.24% |
| Total | 21851 | 409 |
/****************************************************************************** * * 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 - 2015 Intel Mobile Communications GmbH * Copyright(c) 2016 - 2017 Intel Deutschland GmbH * Copyright(c) 2018 - 2019 Intel Corporation * * 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. * * 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 - 2015 Intel Mobile Communications GmbH * Copyright(c) 2016 - 2017 Intel Deutschland GmbH * Copyright(c) 2018 - 2019 Intel Corporation * 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 "fw/error-dump.h" #include "iwl-prph.h" #include "iwl-nvm-parse.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_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 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { .max_peers = IWL_MVM_TOF_MAX_APS, .report_ap_tsf = 1, .randomize_mac_addr = 1, .ftm = { .supported = 1, .asap = 1, .non_asap = 1, .request_lci = 1, .request_civicloc = 1, .max_bursts_exponent = -1, /* all supported */ .max_ftms_per_burst = 0, /* no limits */ .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | BIT(NL80211_CHAN_WIDTH_20) | BIT(NL80211_CHAN_WIDTH_40) | BIT(NL80211_CHAN_WIDTH_80), .preambles = BIT(NL80211_PREAMBLE_LEGACY) | BIT(NL80211_PREAMBLE_HT) | BIT(NL80211_PREAMBLE_VHT), }, }; 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); 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) { u32 status = le32_to_cpu(resp->status); *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || status == MCC_RESP_ILLEGAL); } regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, __le32_to_cpu(resp->n_channels), resp->channels, __le16_to_cpu(resp->mcc), __le16_to_cpu(resp->geo_info)); /* 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; } const static u8 he_if_types_ext_capa_sta[] = { [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF, [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, }; const static struct wiphy_iftype_ext_capab he_iftypes_ext_capa[] = { { .iftype = NL80211_IFTYPE_STATION, .extended_capabilities = he_if_types_ext_capa_sta, .extended_capabilities_mask = he_if_types_ext_capa_sta, .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), }, }; 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, }; #ifdef CONFIG_PM_SLEEP bool unified = fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); #endif /* 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, 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); ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); ieee80211_hw_set(hw, STA_MMPDU_TXQ); /* * On older devices, enabling TX A-MSDU occasionally leads to * something getting messed up, the command read from the FIFO * gets out of sync and isn't a TX command, so that we have an * assert EDC. * * It's not clear where the bug is, but since we didn't used to * support A-MSDU until moving the mac80211 iTXQs, just leave it * for older devices. We also don't see this issue on any newer * devices. */ if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) ieee80211_hw_set(hw, TX_AMSDU); ieee80211_hw_set(hw, TX_FRAG_LIST); if (iwl_mvm_has_tlc_offload(mvm)) { ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); ieee80211_hw_set(hw, HAS_RATE_CONTROL); } if (iwl_mvm_has_new_rx_api(mvm)) ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { ieee80211_hw_set(hw, AP_LINK_PS); } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { /* * we absolutely need this for the new TX API since that comes * with many more queues than the current code can deal with * for station powersave */ return -EINVAL; } if (mvm->trans->num_rx_queues > 1) ieee80211_hw_set(hw, USES_RSS); if (mvm->trans->max_skb_frags) hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; hw->queues = IEEE80211_MAX_QUEUES; 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->radiotap_timestamp.units_pos = IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; /* this is the case for CCK frames, it's better (only 8) for OFDM */ hw->radiotap_timestamp.accuracy = 22; if (!iwl_mvm_has_tlc_offload(mvm)) hw->rate_control_algorithm = RS_NAME; hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; hw->max_tx_fragments = mvm->trans->max_skb_frags; BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); hw->wiphy->cipher_suites = mvm->ciphers; if (iwl_mvm_has_new_rx_api(mvm)) { mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_GCMP; hw->wiphy->n_cipher_suites++; mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_GCMP_256; hw->wiphy->n_cipher_suites++; } /* Enable 11w if software crypto is not enabled (as the * firmware will interpret some mgmt packets, so enabling it * with software crypto isn't safe). */ if (!iwlwifi_mod_params.swcrypto) { ieee80211_hw_set(hw, MFP_CAPABLE); mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; hw->wiphy->n_cipher_suites++; if (iwl_mvm_has_new_rx_api(mvm)) { mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_BIP_GMAC_128; hw->wiphy->n_cipher_suites++; mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_BIP_GMAC_256; hw->wiphy->n_cipher_suites++; } } /* currently FW API supports only one optional cipher scheme */ if (mvm->fw->cs[0].cipher) { const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0]; struct ieee80211_cipher_scheme *cs = &mvm->cs[0]; mvm->hw->n_cipher_schemes = 1; cs->cipher = le32_to_cpu(fwcs->cipher); cs->iftype = BIT(NL80211_IFTYPE_STATION); cs->hdr_len = fwcs->hdr_len; cs->pn_len = fwcs->pn_len; cs->pn_off = fwcs->pn_off; cs->key_idx_off = fwcs->key_idx_off; cs->key_idx_mask = fwcs->key_idx_mask; cs->key_idx_shift = fwcs->key_idx_shift; cs->mic_len = fwcs->mic_len; mvm->hw->cipher_schemes = mvm->cs; mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher; hw->wiphy->n_cipher_suites++; } if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; } 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->txq_data_size = sizeof(struct iwl_mvm_txq); 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; wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 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; 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; /* 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[NL80211_BAND_2GHZ].n_channels) hw->wiphy->bands[NL80211_BAND_2GHZ] = &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { hw->wiphy->bands[NL80211_BAND_5GHZ] = &mvm->nvm_data->bands[NL80211_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[NL80211_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->max_sched_scan_reqs = 1; 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_AP_MODE_CHAN_WIDTH_CHANGE | 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; if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_SCAN_START_TIME); wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_BSS_PARENT_TSF); wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_SET_SCAN_DWELL); } if (iwl_mvm_is_oce_supported(mvm)) { wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); } if (mvm->nvm_data->sku_cap_11ax_enable && !iwlwifi_mod_params.disable_11ax) { hw->wiphy->iftype_ext_capab = he_iftypes_ext_capa; hw->wiphy->num_iftype_ext_capab = ARRAY_SIZE(he_iftypes_ext_capa); ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); } mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; #ifdef CONFIG_PM_SLEEP if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 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.swcrypto) 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; 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 &= ~(IWL_TX_CSUM_NETIF_FLAGS | NETIF_F_RXCSUM); /* We may support SW TX CSUM */ if (IWL_MVM_SW_TX_CSUM_OFFLOAD) hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS; } if (mvm->cfg->vht_mu_mimo_supported) wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); ret = ieee80211_register_hw(mvm->hw); if (ret) { iwl_mvm_leds_exit(mvm); } return ret; } 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; bool offchannel = IEEE80211_SKB_CB(skb)->flags & IEEE80211_TX_CTL_TX_OFFCHAN; if (iwl_mvm_is_radio_killed(mvm)) { IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); goto drop; } if (offchannel && !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 on AP interfaces as broadcast */ if ((info->control.vif->type == NL80211_IFTYPE_AP || info->control.vif->type == NL80211_IFTYPE_ADHOC) && ieee80211_is_mgmt(hdr->frame_control) && !ieee80211_is_bufferable_mmpdu(hdr->frame_control)) sta = NULL; /* If there is no sta, and it's not offchannel - send through AP */ if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && !offchannel) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(info->control.vif); u8 ap_sta_id = READ_ONCE(mvmvif->ap_sta_id); if (ap_sta_id < IWL_MVM_STATION_COUNT) { /* mac80211 holds rcu read lock */ sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); if (IS_ERR_OR_NULL(sta)) goto drop; } } if (sta) { 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); } void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); struct sk_buff *skb = NULL; /* * No need for threads to be pending here, they can leave the first * taker all the work. * * mvmtxq->tx_request logic: * * If 0, no one is currently TXing, set to 1 to indicate current thread * will now start TX and other threads should quit. * * If 1, another thread is currently TXing, set to 2 to indicate to * that thread that there was another request. Since that request may * have raced with the check whether the queue is empty, the TXing * thread should check the queue's status one more time before leaving. * This check is done in order to not leave any TX hanging in the queue * until the next TX invocation (which may not even happen). * * If 2, another thread is currently TXing, and it will already double * check the queue, so do nothing. */ if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) return; rcu_read_lock(); do { while (likely(!mvmtxq->stopped && (mvm->trans->system_pm_mode == IWL_PLAT_PM_MODE_DISABLED))) { skb = ieee80211_tx_dequeue(hw, txq); if (!skb) { if (txq->sta) IWL_DEBUG_TX(mvm, "TXQ of sta %pM tid %d is now empty\n", txq->sta->addr, txq->tid); break; } if (!txq->sta) iwl_mvm_tx_skb_non_sta(mvm, skb); else iwl_mvm_tx_skb(mvm, skb, txq->sta); } } while (atomic_dec_return(&mvmtxq->tx_request)); rcu_read_unlock(); } static void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, struct ieee80211_txq *txq) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); /* * Please note that racing is handled very carefully here: * mvmtxq->txq_id is updated during allocation, and mvmtxq->list is * deleted afterwards. * This means that if: * mvmtxq->txq_id != INVALID_QUEUE && list_empty(&mvmtxq->list): * queue is allocated and we can TX. * mvmtxq->txq_id != INVALID_QUEUE && !list_empty(&mvmtxq->list): * a race, should defer the frame. * mvmtxq->txq_id == INVALID_QUEUE && list_empty(&mvmtxq->list): * need to allocate the queue and defer the frame. * mvmtxq->txq_id == INVALID_QUEUE && !list_empty(&mvmtxq->list): * queue is already scheduled for allocation, no need to allocate, * should defer the frame. */ /* If the queue is allocated TX and return. */ if (!txq->sta || mvmtxq->txq_id != IWL_MVM_INVALID_QUEUE) { /* * Check that list is empty to avoid a race where txq_id is * already updated, but the queue allocation work wasn't * finished */ if (unlikely(txq->sta && !list_empty(&mvmtxq->list))) return; iwl_mvm_mac_itxq_xmit(hw, txq); return; } /* The list is being deleted only after the queue is fully allocated. */ if (!list_empty(&mvmtxq->list)) return; list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); schedule_work(&mvm->add_stream_wk); } #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ do { \ if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ break; \ iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _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; trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), FW_DBG_TRIGGER_BA); if (!trig) return; ba_trig = (void *)trig->data; 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; struct ieee80211_sta *sta = params->sta; enum ieee80211_ampdu_mlme_action action = params->action; u16 tid = params->tid; u16 *ssn = ¶ms->ssn; u16 buf_size = params->buf_size; bool amsdu = params->amsdu; u16 timeout = params->timeout; 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; mutex_lock(&mvm->mutex); switch (action) { case IEEE80211_AMPDU_RX_START: if (iwl_mvm_vif_from_mac80211(vif)->ap_sta_id == iwl_mvm_sta_from_mac80211(sta)->sta_id) { struct iwl_mvm_vif *mvmvif; u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; mdata->opened_rx_ba_sessions = true; mvmvif = iwl_mvm_vif_from_mac80211(vif); cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); } if (!iwl_enable_rx_ampdu()) { ret = -EINVAL; break; } ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, timeout); break; case IEEE80211_AMPDU_RX_STOP: ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, timeout); break; case IEEE80211_AMPDU_TX_START: if (!iwl_enable_tx_ampdu()) { 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); 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_INVALID_STA; 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)); memset(&mvmvif->probe_resp_data, 0, sizeof(mvmvif->probe_resp_data)); } static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) { iwl_mvm_stop_device(mvm); mvm->cur_aid = 0; mvm->scan_status = 0; mvm->ps_disabled = false; mvm->rfkill_safe_init_done = false; /* just in case one was running */ iwl_mvm_cleanup_roc_te(mvm); ieee80211_remain_on_channel_expired(mvm->hw); iwl_mvm_ftm_restart(mvm); /* * 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; iwl_mvm_reset_phy_ctxts(mvm); memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); ieee80211_wake_queues(mvm->hw); mvm->vif_count = 0; mvm->rx_ba_sessions = 0; mvm->fwrt.dump.conf = FW_DBG_INVALID; mvm->monitor_on = false; /* 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_HW_RESTART_REQUESTED, &mvm->status)) { /* * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART * so later code will - from now on - see that we're doing it. */ set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); /* Clean up some internal and mac80211 state on restart */ iwl_mvm_restart_cleanup(mvm); } ret = iwl_mvm_up(mvm); iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, NULL); iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, NULL); 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); } return ret; } static int iwl_mvm_mac_start(struct ieee80211_hw *hw) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); int ret; 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); ret = iwl_mvm_update_quotas(mvm, true, NULL); if (ret) IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", ret); iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); /* * 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_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: 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); /* * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the * hw (as restart_complete() won't be called in this case) and mac80211 * won't execute the restart. * 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) || test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &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->async_handlers_wk); flush_work(&mvm->add_stream_wk); /* * Lock and clear the firmware running bit here already, so that * new commands coming in elsewhere, e.g. from debugfs, will not * be able to proceed. This is important here because one of those * debugfs files causes the firmware dump to be triggered, and if we * don't stop debugfs accesses before canceling that it could be * retriggered after we flush it but before we've cleared the bit. */ clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); cancel_delayed_work_sync(&mvm->scan_timeout_dwork); iwl_fw_free_dump_desc(&mvm->fwrt); 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) { int len; union { struct iwl_dev_tx_power_cmd v5; struct iwl_dev_tx_power_cmd_v4 v4; } cmd = { .v5.v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), .v5.v3.mac_context_id = cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), .v5.v3.pwr_restriction = cpu_to_le16(8 * tx_power), }; if (tx_power == IWL_DEFAULT_MAX_TX_POWER) cmd.v5.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_REDUCE_TX_POWER)) len = sizeof(cmd.v5); else if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) len = sizeof(cmd.v4); else len = sizeof(cmd.v4.v3); return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); } 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; mvmvif->csa_bcn_pending = false; mvmsta = iwl_mvm_sta_from_staid_protected(mvm, mvmvif->ap_sta_id); if (WARN_ON(!mvmsta)) { ret = -EIO; goto out_unlock; } if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 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_abort_channel_switch(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); struct iwl_chan_switch_te_cmd cmd = { .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)), .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), }; IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); mutex_lock(&mvm->mutex); WARN_ON(iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(MAC_CONF_GROUP, CHANNEL_SWITCH_TIME_EVENT_CMD), 0, sizeof(cmd), &cmd)); mutex_unlock(&mvm->mutex); WARN_ON(iwl_mvm_post_channel_switch(hw, vif)); } static void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) { struct iwl_mvm *mvm; struct iwl_mvm_vif *mvmvif; struct ieee80211_vif *vif; mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); mvm = mvmvif->mvm; iwl_mvm_abort_channel_switch(mvm->hw, vif); ieee80211_chswitch_done(vif, false); } 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; RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); /* * 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; rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); /* 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; } /* * Only queue for this station is the mcast queue, * which shouldn't be in TFD mask anyway */ ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta, 0, vif->type, IWL_STA_MULTICAST); if (ret) 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_p2p_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_tcm_add_vif(mvm, vif); INIT_DELAYED_WORK(&mvmvif->csa_work, iwl_mvm_channel_switch_disconnect_wk); if (vif->type == NL80211_IFTYPE_MONITOR) mvm->monitor_on = true; 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--; out_unlock: mutex_unlock(&mvm->mutex); return ret; } static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, struct ieee80211_vif *vif) { 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); } } 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); struct iwl_probe_resp_data *probe_data; iwl_mvm_prepare_mac_removal(mvm, vif); if (!(vif->type == NL80211_IFTYPE_AP || vif->type == NL80211_IFTYPE_ADHOC)) iwl_mvm_tcm_rm_vif(mvm, vif); mutex_lock(&mvm->mutex); probe_data = rcu_dereference_protected(mvmvif->probe_resp_data, lockdep_is_held(&mvm->mutex)); RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); if (probe_data) kfree_rcu(probe_data, rcu_head); if (mvm->bf_allowed_vif == mvmvif) { mvm->bf_allowed_vif = NULL; vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | IEEE80211_VIF_SUPPORTS_CQM_RSSI); } if (vif->bss_conf.ftm_responder) memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 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_int_sta(mvm, &mvmvif->mcast_sta); 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_p2p_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); RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); if (vif->type == NL80211_IFTYPE_MONITOR) mvm->monitor_on = false; out_release: 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; struct iwl_host_cmd hcmd = { .id = MCAST_FILTER_CMD, .flags = CMD_ASYNC, .dataflags[0] = IWL_HCMD_DFL_NOCOPY, }; 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); hcmd.len[0] = len; hcmd.data[0] = cmd; ret = iwl_mvm_send_cmd(mvm, &hcmd); 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; if (changed_flags & FIF_ALLMULTI) cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); if (cmd->pass_all) cmd->count = 0; 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 u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) { u8 byte_num = ppe_pos_bit / 8; u8 bit_num = ppe_pos_bit % 8; u8 residue_bits; u8 res; if (bit_num <= 5) return (ppe[byte_num] >> bit_num) & (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); /* * If bit_num > 5, we have to combine bits with next byte. * Calculate how many bits we need to take from current byte (called * here "residue_bits"), and add them to bits from next byte. */ residue_bits = 8 - bit_num; res = (ppe[byte_num + 1] & (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << residue_bits; res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); return res; } static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, u8 sta_id) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); struct iwl_he_sta_context_cmd sta_ctxt_cmd = { .sta_id = sta_id, .tid_limit = IWL_MAX_TID_COUNT, .bss_color = vif->bss_conf.bss_color, .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, .frame_time_rts_th = cpu_to_le16(vif->bss_conf.frame_time_rts_th), }; int size = fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE) ? sizeof(sta_ctxt_cmd) : sizeof(struct iwl_he_sta_context_cmd_v1); struct ieee80211_sta *sta; u32 flags; int i; rcu_read_lock(); sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); if (IS_ERR(sta)) { rcu_read_unlock(); WARN(1, "Can't find STA to configure HE\n"); return; } if (!sta->he_cap.has_he) { rcu_read_unlock(); return; } flags = 0; /* Block 26-tone RU OFDMA transmissions */ if (mvmvif->he_ru_2mhz_block) flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; /* HTC flags */ if (sta->he_cap.he_cap_elem.mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); if ((sta->he_cap.he_cap_elem.mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || (sta->he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { u8 link_adap = ((sta->he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + (sta->he_cap.he_cap_elem.mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); if (link_adap == 2) sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); else if (link_adap == 3) sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); } if (sta->he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); if (sta->he_cap.he_cap_elem.mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); if (sta->he_cap.he_cap_elem.mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); /* * Initialize the PPE thresholds to "None" (7), as described in Table * 9-262ac of 80211.ax/D3.0. */ memset(&sta_ctxt_cmd.pkt_ext, 7, sizeof(sta_ctxt_cmd.pkt_ext)); /* If PPE Thresholds exist, parse them into a FW-familiar format. */ if (sta->he_cap.he_cap_elem.phy_cap_info[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { u8 nss = (sta->he_cap.ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) + 1; u8 ru_index_bitmap = (sta->he_cap.ppe_thres[0] & IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK) >> IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS; u8 *ppe = &sta->he_cap.ppe_thres[0]; u8 ppe_pos_bit = 7; /* Starting after PPE header */ /* * FW currently supports only nss == MAX_HE_SUPP_NSS * * If nss > MAX: we can ignore values we don't support * If nss < MAX: we can set zeros in other streams */ if (nss > MAX_HE_SUPP_NSS) { IWL_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, MAX_HE_SUPP_NSS); nss = MAX_HE_SUPP_NSS; } for (i = 0; i < nss; i++) { u8 ru_index_tmp = ru_index_bitmap << 1; u8 bw; for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX; bw++) { ru_index_tmp >>= 1; if (!(ru_index_tmp & 1)) continue; sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][1] = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][0] = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; } } flags |= STA_CTXT_HE_PACKET_EXT; } else if ((sta->he_cap.he_cap_elem.phy_cap_info[9] & IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) != IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_RESERVED) { int low_th = -1; int high_th = -1; /* Take the PPE thresholds from the nominal padding info */ switch (sta->he_cap.he_cap_elem.phy_cap_info[9] & IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) { case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US: low_th = IWL_HE_PKT_EXT_NONE; high_th = IWL_HE_PKT_EXT_NONE; break; case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US: low_th = IWL_HE_PKT_EXT_BPSK; high_th = IWL_HE_PKT_EXT_NONE; break; case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US: low_th = IWL_HE_PKT_EXT_NONE; high_th = IWL_HE_PKT_EXT_BPSK; break; } /* Set the PPE thresholds accordingly */ if (low_th >= 0 && high_th >= 0) { struct iwl_he_pkt_ext *pkt_ext = (struct iwl_he_pkt_ext *)&sta_ctxt_cmd.pkt_ext; for (i = 0; i < MAX_HE_SUPP_NSS; i++) { u8 bw; for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX; bw++) { pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; } } flags |= STA_CTXT_HE_PACKET_EXT; } } rcu_read_unlock(); /* Mark MU EDCA as enabled, unless none detected on some AC */ flags |= STA_CTXT_HE_MU_EDCA_CW; for (i = 0; i < IEEE80211_NUM_ACS; i++) { struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = &mvmvif->queue_params[i].mu_edca_param_rec; u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); if (!mvmvif->queue_params[i].mu_edca) { flags &= ~STA_CTXT_HE_MU_EDCA_CW; break; } sta_ctxt_cmd.trig_based_txf[ac].cwmin = cpu_to_le16(mu_edca->ecw_min_max & 0xf); sta_ctxt_cmd.trig_based_txf[ac].cwmax = cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); sta_ctxt_cmd.trig_based_txf[ac].aifsn = cpu_to_le16(mu_edca->aifsn); sta_ctxt_cmd.trig_based_txf[ac].mu_time = cpu_to_le16(mu_edca->mu_edca_timer); } if (vif->bss_conf.multi_sta_back_32bit) flags |= STA_CTXT_HE_32BIT_BA_BITMAP; if (vif->bss_conf.ack_enabled) flags |= STA_CTXT_HE_ACK_ENABLED; if (vif->bss_conf.uora_exists) { flags |= STA_CTXT_HE_TRIG_RND_ALLOC; sta_ctxt_cmd.rand_alloc_ecwmin = vif->bss_conf.uora_ocw_range & 0x7; sta_ctxt_cmd.rand_alloc_ecwmax = (vif->bss_conf.uora_ocw_range >> 3) & 0x7; } if (vif->bss_conf.nontransmitted) { flags |= STA_CTXT_HE_REF_BSSID_VALID; ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, vif->bss_conf.transmitter_bssid); sta_ctxt_cmd.max_bssid_indicator = vif->bss_conf.bssid_indicator; sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; sta_ctxt_cmd.profile_periodicity = vif->bss_conf.profile_periodicity; } sta_ctxt_cmd.flags = cpu_to_le32(flags); if (iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(STA_HE_CTXT_CMD, DATA_PATH_GROUP, 0), 0, size, &sta_ctxt_cmd)) IWL_ERR(mvm, "Failed to config FW to work HE!\n"); } 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) { if (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax) iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); } /* Update MU EDCA params */ if (changes & BSS_CHANGED_QOS && mvmvif->associated && bss_conf->assoc && vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax) iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); /* * 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_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_PROT, IEEE80211_SMPS_DYNAMIC); } } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { /* * If update fails - SF might be running in associated * mode while disassociated - which is forbidden. */ ret = iwl_mvm_sf_update(mvm, vif, false); WARN_ONCE(ret && !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status), "Failed to update SF upon disassociation\n"); /* * If we get an assert during the connection (after the * station has been added, but before the vif is set * to associated), mac80211 will re-add the station and * then configure the vif. Since the vif is not * associated, we would remove the station here and * this would fail the recovery. */ if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { /* * 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"); mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; } /* remove quota for this interface */ ret = iwl_mvm_update_quotas(mvm, false, NULL); if (ret) IWL_ERR(mvm, "failed to update quotas\n"); /* 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); } if (changes & BSS_CHANGED_BEACON_INFO) { /* * We received a beacon from the associated AP so * remove the session protection. */ iwl_mvm_stop_session_protection(mvm, vif); 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, i; 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; /* * This is not very nice, but the simplest: * For older FWs adding the mcast sta before the bcast station may * cause assert 0x2b00. * This is fixed in later FW so make the order of removal depend on * the TLV */ if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { ret = iwl_mvm_add_mcast_sta(mvm, vif); if (ret) goto out_unbind; /* * 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) { iwl_mvm_rm_mcast_sta(mvm, vif); goto out_unbind; } } else { /* * 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; ret = iwl_mvm_add_mcast_sta(mvm, vif); if (ret) { iwl_mvm_send_rm_bcast_sta(mvm, vif); goto out_unbind; } } /* must be set before quota calculations */ mvmvif->ap_ibss_active = true; /* send all the early keys to the device now */ for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; if (!key) continue; mvmvif->ap_early_keys[i] = NULL; ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); if (ret) goto out_quota_failed; } if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { iwl_mvm_vif_set_low_latency(mvmvif, true, LOW_LATENCY_VIF_TYPE); iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); } /* 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_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); iwl_mvm_ftm_restart_responder(mvm, vif); 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); iwl_mvm_rm_mcast_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); 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; if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { iwl_mvm_vif_set_low_latency(mvmvif, false, LOW_LATENCY_VIF_TYPE); iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); } iwl_mvm_bt_coex_vif_change(mvm); /* 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); /* * This is not very nice, but the simplest: * For older FWs removing the mcast sta before the bcast station may * cause assert 0x2b00. * This is fixed in later FW (which will stop beaconing when removing * bcast station). * So make the order of removal depend on the TLV */ if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) iwl_mvm_rm_mcast_sta(mvm, vif); iwl_mvm_send_rm_bcast_sta(mvm, vif); if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) iwl_mvm_rm_mcast_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); } if (changes & BSS_CHANGED_FTM_RESPONDER) { int ret = iwl_mvm_ftm_start_responder(mvm, vif); if (ret) IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", ret); } } 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); 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; case NL80211_IFTYPE_MONITOR: if (changes & BSS_CHANGED_MU_GROUPS) iwl_mvm_update_mu_groups(mvm, vif); break; default: /* shouldn't happen */ WARN_ON_ONCE(1); } mutex_unlock(&mvm->mutex); } 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 or dqa 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, 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; /* * If we have TVQM then we get too high queue numbers - luckily * we really shouldn't get here with that because such hardware * should have firmware supporting buffer station offload. */ if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) return; spin_lock_bh(&mvmsta->lock); for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) continue; __set_bit(tid_data->txq_id, &txqs); if (iwl_mvm_tid_queued(mvm, tid_data) == 0) continue; __set_bit(tid, &tids); } switch (cmd) { case STA_NOTIFY_SLEEP: 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_INVALID_STA)) 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_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, enum sta_notify_cmd cmd, struct ieee80211_sta *sta) { __iwl_mvm_mac_sta_notify(hw, cmd, sta); } void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) { struct iwl_rx_packet *pkt = rxb_addr(rxb); struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; struct ieee80211_sta *sta; struct iwl_mvm_sta *mvmsta; bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))) return; rcu_read_lock(); sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); if (WARN_ON(IS_ERR_OR_NULL(sta))) { rcu_read_unlock(); return; } mvmsta = iwl_mvm_sta_from_mac80211(sta); if (!mvmsta->vif || mvmsta->vif->type != NL80211_IFTYPE_AP) { rcu_read_unlock(); return; } if (mvmsta->sleeping != sleeping) { mvmsta->sleeping = sleeping; __iwl_mvm_mac_sta_notify(mvm->hw, sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, sta); ieee80211_sta_ps_transition(sta, sleeping); } if (sleeping) { switch (notif->type) { case IWL_MVM_PM_EVENT_AWAKE: case IWL_MVM_PM_EVENT_ASLEEP: break; case IWL_MVM_PM_EVENT_UAPSD: ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); break; case IWL_MVM_PM_EVENT_PS_POLL: ieee80211_sta_pspoll(sta); break; default: break; } } rcu_read_unlock(); } 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) { int i; if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { struct iwl_mvm_tcm_mac *mdata; mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); mdata->opened_rx_ba_sessions = false; } if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) return; if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; return; } if (!vif->p2p && (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; return; } for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 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; trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), FW_DBG_TRIGGER_TDLS); if (!trig) return; tdls_trig = (void *)trig->data; if (!(tdls_trig->action_bitmap & BIT(action))) return; if (tdls_trig->peer_mode && memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) return; iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, "TDLS event occurred, peer %pM, action %d", peer_addr, action); } struct iwl_mvm_he_obss_narrow_bw_ru_data { bool tolerated; }; static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, struct cfg80211_bss *bss, void *_data) { struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; const struct element *elem; elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, bss->ies->data, bss->ies->len); if (!elem || elem->datalen < 10 || !(elem->data[10] & WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { data->tolerated = false; } } static void iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { .tolerated = true, }; if (!(vif->bss_conf.chandef.chan->flags & IEEE80211_CHAN_RADAR)) { mvmvif->he_ru_2mhz_block = false; return; } cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chandef, iwl_mvm_check_he_obss_narrow_bw_ru_iter, &iter_data); /* * If there is at least one AP on radar channel that cannot * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. */ mvmvif->he_ru_2mhz_block = !iter_data.tolerated; } 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); struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 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 we are in a STA removal flow and in DQA mode: * * This is after the sync_rcu part, so the queues have already been * flushed. No more TXs on their way in mac80211's path, and no more in * the queues. * Also, we won't be getting any new TX frames for this station. * What we might have are deferred TX frames that need to be taken care * of. * * Drop any still-queued deferred-frame before removing the STA, and * make sure the worker is no longer handling frames for this STA. */ if (old_state == IEEE80211_STA_NONE && new_state == IEEE80211_STA_NOTEXIST) { flush_work(&mvm->add_stream_wk); /* * No need to make sure deferred TX indication is off since the * worker will already remove it if it was on */ } mutex_lock(&mvm->mutex); /* track whether or not the station is associated */ mvm_sta->sta_state = new_state; 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); } sta->max_rc_amsdu_len = 1; } 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) { vif->bss_conf.he_support = sta->he_cap.has_he; mvmvif->ap_assoc_sta_count++; iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); if (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax) iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->sta_id); } else if (vif->type == NL80211_IFTYPE_STATION) { vif->bss_conf.he_support = sta->he_cap.has_he; mvmvif->he_ru_2mhz_block = false; if (sta->he_cap.has_he) iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif); iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); } iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, false); ret = iwl_mvm_update_sta(mvm, vif, sta); } else if (old_state == IEEE80211_STA_ASSOC && new_state == IEEE80211_STA_AUTHORIZED) { ret = 0; /* 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)); /* * Now that the station is authorized, i.e., keys were already * installed, need to indicate to the FW that * multicast data frames can be forwarded to the driver */ iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, true); } else if (old_state == IEEE80211_STA_AUTHORIZED && new_state == IEEE80211_STA_ASSOC) { /* Multicast data frames are no longer allowed */ iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); /* disable beacon filtering */ ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); WARN_ON(ret && !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)); 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); } if (unlikely(ret && test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status))) ret = 0; } 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); struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); if (changed & (IEEE80211_RC_BW_CHANGED | IEEE80211_RC_SUPP_RATES_CHANGED | IEEE80211_RC_NSS_CHANGED)) iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, true); 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, u16 req_duration) { 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 (req_duration > duration) duration = req_duration; 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); } 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_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 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, i; u8 key_offset; if (iwlwifi_mod_params.swcrypto) { IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); return -EOPNOTSUPP; } switch (key->cipher) { case WLAN_CIPHER_SUITE_TKIP: if (!mvm->trans->trans_cfg->gen2) { key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; } else if (vif->type == NL80211_IFTYPE_STATION) { key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; } else { IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); return -EOPNOTSUPP; } break; case WLAN_CIPHER_SUITE_CCMP: case WLAN_CIPHER_SUITE_GCMP: case WLAN_CIPHER_SUITE_GCMP_256: if (!iwl_mvm_has_new_tx_api(mvm)) key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; break; case WLAN_CIPHER_SUITE_AES_CMAC: case WLAN_CIPHER_SUITE_BIP_GMAC_128: case WLAN_CIPHER_SUITE_BIP_GMAC_256: WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); break; case WLAN_CIPHER_SUITE_WEP40: case WLAN_CIPHER_SUITE_WEP104: if (vif->type == NL80211_IFTYPE_STATION) break; if (iwl_mvm_has_new_tx_api(mvm)) return -EOPNOTSUPP; /* support HW crypto on TX */ return 0; 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; } 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/GMAC in AP/IBSS modes must be done in software. */ if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) ret = -EOPNOTSUPP; else ret = 0; if (key->cipher != WLAN_CIPHER_SUITE_GCMP && key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && !iwl_mvm_has_new_tx_api(mvm)) { key->hw_key_idx = STA_KEY_IDX_INVALID; break; } if (!mvmvif->ap_ibss_active) { for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { if (!mvmvif->ap_early_keys[i]) { mvmvif->ap_early_keys[i] = key; break; } } if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) ret = -ENOSPC; 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 || key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 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(struct_size(ptk_pn, q, mvm->trans->num_rx_queues), 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"); key->hw_key_idx = STA_KEY_IDX_INVALID; /* * can't add key for RX, but we don't need it * in the device for TX so still return 0, * unless we have new TX API where we cannot * put key material into the TX_CMD */ if (iwl_mvm_has_new_tx_api(mvm)) ret = -EOPNOTSUPP; else ret = 0; } break; case DISABLE_KEY: ret = -ENOENT; for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { if (mvmvif->ap_early_keys[i] == key) { mvmvif->ap_early_keys[i] = NULL; ret = 0; } } /* found in pending list - don't do anything else */ if (ret == 0) break; 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 || key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 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; } 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); int ret; mutex_lock(&mvm->mutex); ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 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: Received 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; 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), }; struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, &aux_roc_req.channel_info); u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); /* Set the channel info data */ iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, (channel->band == NL80211_BAND_2GHZ) ? PHY_BAND_24 : PHY_BAND_5, PHY_VHT_CHANNEL_MODE20, 0); /* Set the time and duration */ tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 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; } } tail->duration = cpu_to_le32(req_dur); tail->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(tail->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, len, &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 the done work, just in case it's still pending, so that * the work it does can complete and we can accept new frames. */ 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 ieee80211_vif *vif) { 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; } struct iwl_mvm_ftm_responder_iter_data { bool responder; struct ieee80211_chanctx_conf *ctx; }; static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, struct ieee80211_vif *vif) { struct iwl_mvm_ftm_responder_iter_data *data = _data; if (rcu_access_pointer(vif->chanctx_conf) == data->ctx && vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) data->responder = true; } static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, struct ieee80211_chanctx_conf *ctx) { struct iwl_mvm_ftm_responder_iter_data data = { .responder = false, .ctx = ctx, }; ieee80211_iterate_active_interfaces_atomic(mvm->hw, IEEE80211_IFACE_ITER_NORMAL, iwl_mvm_ftm_responder_chanctx_iter, &data); return data.responder; } 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; bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 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, 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]; bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 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); /* we are only changing the min_width, may be a noop */ if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { if (phy_ctxt->width == def->width) goto out_unlock; /* we are just toggling between 20_NOHT and 20 */ if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && def->width <= NL80211_CHAN_WIDTH_20) goto out_unlock; } iwl_mvm_bt_coex_vif_change(mvm); iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, ctx->rx_chains_static, ctx->rx_chains_dynamic); out_unlock: 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; } /* fall through */ 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: mvmvif->csa_bcn_pending = false; 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) { mvmvif->csa_bcn_pending = true; if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { u32 duration = 3 * vif->bss_conf.beacon_int; /* 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_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; if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 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_tx_last_beacon(struct ieee80211_hw *hw) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); return mvm->ibss_manager; } 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_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy, NULL); 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, true, 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_schedule_client_csa(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct ieee80211_channel_switch *chsw) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); struct iwl_chan_switch_te_cmd cmd = { .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)), .action = cpu_to_le32(FW_CTXT_ACTION_ADD), .tsf = cpu_to_le32(chsw->timestamp), .cs_count = chsw->count, .cs_mode = chsw->block_tx, }; lockdep_assert_held(&mvm->mutex); if (chsw->delay) cmd.cs_delayed_bcn_count = DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); return iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(MAC_CONF_GROUP, CHANNEL_SWITCH_TIME_EVENT_CMD), 0, sizeof(cmd), &cmd); } static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct ieee80211_channel_switch *chsw) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); u32 apply_time; /* Schedule the time event to a bit before beacon 1, * to make sure we're in the new channel when the * GO/AP arrives. In case count <= 1 immediately schedule the * TE (this might result with some packet loss or connection * loss). */ if (chsw->count <= 1) apply_time = 0; else 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); if (mvmvif->bf_data.bf_enabled) { int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); if (ret) return ret; } iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, apply_time); return 0; } #define IWL_MAX_CSA_BLOCK_TX 1500 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); 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->fwrt, ieee80211_vif_to_wdev(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; } /* we still didn't unblock tx. prevent new CS meanwhile */ if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, lockdep_is_held(&mvm->mutex))) { 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; } mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; break; case NL80211_IFTYPE_STATION: if (chsw->block_tx) { /* * In case of undetermined / long time with immediate * quiet monitor status to gracefully disconnect */ if (!chsw->count || chsw->count * vif->bss_conf.beacon_int > IWL_MAX_CSA_BLOCK_TX) schedule_delayed_work(&mvmvif->csa_work, msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); } if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); if (ret) goto out_unlock; } else { iwl_mvm_schedule_client_csa(mvm, vif, chsw); } mvmvif->csa_count = chsw->count; mvmvif->csa_misbehave = false; 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 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_channel_switch *chsw) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); struct iwl_chan_switch_te_cmd cmd = { .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)), .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), .tsf = cpu_to_le32(chsw->timestamp), .cs_count = chsw->count, .cs_mode = chsw->block_tx, }; if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) return; if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { if (mvmvif->csa_misbehave) { /* Second time, give up on this AP*/ iwl_mvm_abort_channel_switch(hw, vif); ieee80211_chswitch_done(vif, false); mvmvif->csa_misbehave = false; return; } mvmvif->csa_misbehave = true; } mvmvif->csa_count = chsw->count; IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d\n", mvmvif->id); WARN_ON(iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(MAC_CONF_GROUP, CHANNEL_SWITCH_TIME_EVENT_CMD), CMD_ASYNC, sizeof(cmd), &cmd)); } static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) { int i; if (!iwl_mvm_has_new_tx_api(mvm)) { if (drop) { mutex_lock(&mvm->mutex); iwl_mvm_flush_tx_path(mvm, iwl_mvm_flushable_queues(mvm) & queues, 0); mutex_unlock(&mvm->mutex); } else { iwl_trans_wait_tx_queues_empty(mvm->trans, queues); } return; } mutex_lock(&mvm->mutex); for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { struct ieee80211_sta *sta; sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], lockdep_is_held(&mvm->mutex)); if (IS_ERR_OR_NULL(sta)) continue; if (drop) iwl_mvm_flush_sta_tids(mvm, i, 0xFF, 0); else iwl_mvm_wait_sta_queues_empty(mvm, iwl_mvm_sta_from_mac80211(sta)); } mutex_unlock(&mvm->mutex); } 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) { iwl_mvm_flush_no_vif(mvm, queues, drop); return; } if (vif->type != NL80211_IFTYPE_STATION) return; /* Make sure we're done with the deferred traffic before flushing */ flush_work(&mvm->add_stream_wk); mutex_lock(&mvm->mutex); mvmvif = iwl_mvm_vif_from_mac80211(vif); /* flush the AP-station and all TDLS peers */ for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); 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); if (drop) { if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0)) IWL_ERR(mvm, "flush request fail\n"); } else { msk |= mvmsta->tfd_queue_msk; if (iwl_mvm_has_new_tx_api(mvm)) iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); } } 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 */ if (!drop && !iwl_mvm_has_new_tx_api(mvm)) iwl_trans_wait_tx_queues_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 (iwl_mvm_firmware_running(mvm)) { 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 (mvmsta->avg_energy) { sinfo->signal_avg = mvmsta->avg_energy; sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); } /* 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_ULL(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_ULL(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(_cnt, _fmt...) \ do { \ if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ break; \ iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ } while (0) struct iwl_fw_dbg_trigger_tlv *trig; struct iwl_fw_dbg_trigger_mlme *trig_mlme; trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), FW_DBG_TRIGGER_MLME); if (!trig) return; trig_mlme = (void *)trig->data; if (event->u.mlme.data == ASSOC_EVENT) { if (event->u.mlme.status == MLME_DENIED) CHECK_MLME_TRIGGER(stop_assoc_denied, "DENIED ASSOC: reason %d", event->u.mlme.reason); else if (event->u.mlme.status == MLME_TIMEOUT) CHECK_MLME_TRIGGER(stop_assoc_timeout, "ASSOC TIMEOUT"); } else if (event->u.mlme.data == AUTH_EVENT) { if (event->u.mlme.status == MLME_DENIED) CHECK_MLME_TRIGGER(stop_auth_denied, "DENIED AUTH: reason %d", event->u.mlme.reason); else if (event->u.mlme.status == MLME_TIMEOUT) CHECK_MLME_TRIGGER(stop_auth_timeout, "AUTH TIMEOUT"); } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { CHECK_MLME_TRIGGER(stop_rx_deauth, "DEAUTH RX %d", event->u.mlme.reason); } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { CHECK_MLME_TRIGGER(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; trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), FW_DBG_TRIGGER_BA); if (!trig) return; ba_trig = (void *)trig->data; if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) return; iwl_fw_dbg_collect_trig(&mvm->fwrt, 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_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->u.ba.sta, event->u.ba.tid); break; default: break; } } void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, struct iwl_mvm_internal_rxq_notif *notif, u32 size) { u32 qmask = BIT(mvm->trans->num_rx_queues) - 1; int ret; if (!iwl_mvm_has_new_rx_api(mvm)) return; if (notif->sync) { notif->cookie = mvm->queue_sync_cookie; atomic_set(&mvm->queue_sync_counter, mvm->trans->num_rx_queues); } ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, size, !notif->sync); if (ret) { IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); goto out; } if (notif->sync) { lockdep_assert_held(&mvm->mutex); ret = wait_event_timeout(mvm->rx_sync_waitq, atomic_read(&mvm->queue_sync_counter) == 0 || iwl_mvm_is_radio_killed(mvm), HZ); WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm)); } out: atomic_set(&mvm->queue_sync_counter, 0); if (notif->sync) mvm->queue_sync_cookie++; } static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); struct iwl_mvm_internal_rxq_notif data = { .type = IWL_MVM_RXQ_EMPTY, .sync = 1, }; mutex_lock(&mvm->mutex); iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data)); mutex_unlock(&mvm->mutex); } static int iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct cfg80211_ftm_responder_stats *stats) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); if (vif->p2p || vif->type != NL80211_IFTYPE_AP || !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) return -EINVAL; mutex_lock(&mvm->mutex); *stats = mvm->ftm_resp_stats; mutex_unlock(&mvm->mutex); stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | BIT(NL80211_FTM_STATS_PARTIAL_NUM) | BIT(NL80211_FTM_STATS_FAILED_NUM) | BIT(NL80211_FTM_STATS_ASAP_NUM) | BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); return 0; } static int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct cfg80211_pmsr_request *request) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); int ret; mutex_lock(&mvm->mutex); ret = iwl_mvm_ftm_start(mvm, vif, request); mutex_unlock(&mvm->mutex); return ret; } static void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct cfg80211_pmsr_request *request) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); mutex_lock(&mvm->mutex); iwl_mvm_ftm_abort(mvm, request); mutex_unlock(&mvm->mutex); } static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) { u8 protocol = ip_hdr(skb)->protocol; if (!IS_ENABLED(CONFIG_INET)) return false; return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; } static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, struct sk_buff *head, struct sk_buff *skb) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); /* For now don't aggregate IPv6 in AMSDU */ if (skb->protocol != htons(ETH_P_IP)) return false; if (!iwl_mvm_is_csum_supported(mvm)) return true; return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); } const struct ieee80211_ops iwl_mvm_hw_ops = { .tx = iwl_mvm_mac_tx, .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, .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, .tx_last_beacon = iwl_mvm_tx_last_beacon, .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, .abort_channel_switch = iwl_mvm_abort_channel_switch, .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, .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, .sync_rx_queues = iwl_mvm_sync_rx_queues, 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, .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, .start_pmsr = iwl_mvm_start_pmsr, .abort_pmsr = iwl_mvm_abort_pmsr, .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, #ifdef CONFIG_IWLWIFI_DEBUGFS .sta_add_debugfs = iwl_mvm_sta_add_debugfs, #endif };
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