1c2d1560aSJohannes Berg /* 2c2d1560aSJohannes Berg * Copyright 2002-2005, Instant802 Networks, Inc. 3c2d1560aSJohannes Berg * Copyright 2005-2006, Devicescape Software, Inc. 4c2d1560aSJohannes Berg * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> 5c2d1560aSJohannes Berg * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> 6d98ad83eSJohannes Berg * Copyright 2013-2014 Intel Mobile Communications GmbH 7da6a4352SJohannes Berg * Copyright (C) 2015-2017 Intel Deutschland GmbH 84926b51bSJohannes Berg * Copyright (C) 2018-2019 Intel Corporation 9c2d1560aSJohannes Berg * 10c2d1560aSJohannes Berg * This program is free software; you can redistribute it and/or modify 11c2d1560aSJohannes Berg * it under the terms of the GNU General Public License version 2 as 12c2d1560aSJohannes Berg * published by the Free Software Foundation. 13c2d1560aSJohannes Berg * 14c2d1560aSJohannes Berg * utilities for mac80211 15c2d1560aSJohannes Berg */ 16c2d1560aSJohannes Berg 17c2d1560aSJohannes Berg #include <net/mac80211.h> 18c2d1560aSJohannes Berg #include <linux/netdevice.h> 19bc3b2d7fSPaul Gortmaker #include <linux/export.h> 20c2d1560aSJohannes Berg #include <linux/types.h> 21c2d1560aSJohannes Berg #include <linux/slab.h> 22c2d1560aSJohannes Berg #include <linux/skbuff.h> 23c2d1560aSJohannes Berg #include <linux/etherdevice.h> 24c2d1560aSJohannes Berg #include <linux/if_arp.h> 25c2d1560aSJohannes Berg #include <linux/bitmap.h> 26dd76986bSJohannes Berg #include <linux/crc32.h> 27881d966bSEric W. Biederman #include <net/net_namespace.h> 28c2d1560aSJohannes Berg #include <net/cfg80211.h> 29dabeb344SJohannes Berg #include <net/rtnetlink.h> 30c2d1560aSJohannes Berg 31c2d1560aSJohannes Berg #include "ieee80211_i.h" 3224487981SJohannes Berg #include "driver-ops.h" 332c8dccc7SJohannes Berg #include "rate.h" 34ee385855SLuis Carlos Cobo #include "mesh.h" 35c2d1560aSJohannes Berg #include "wme.h" 36f2753ddbSJohannes Berg #include "led.h" 37fffd0934SJohannes Berg #include "wep.h" 38c2d1560aSJohannes Berg 39c2d1560aSJohannes Berg /* privid for wiphys to determine whether they belong to us or not */ 408a47cea7SJohannes Berg const void *const mac80211_wiphy_privid = &mac80211_wiphy_privid; 41c2d1560aSJohannes Berg 429a95371aSLuis R. Rodriguez struct ieee80211_hw *wiphy_to_ieee80211_hw(struct wiphy *wiphy) 439a95371aSLuis R. Rodriguez { 449a95371aSLuis R. Rodriguez struct ieee80211_local *local; 459a95371aSLuis R. Rodriguez BUG_ON(!wiphy); 469a95371aSLuis R. Rodriguez 479a95371aSLuis R. Rodriguez local = wiphy_priv(wiphy); 489a95371aSLuis R. Rodriguez return &local->hw; 499a95371aSLuis R. Rodriguez } 509a95371aSLuis R. Rodriguez EXPORT_SYMBOL(wiphy_to_ieee80211_hw); 51c2d1560aSJohannes Berg 525cf121c3SJohannes Berg void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx) 53c2d1560aSJohannes Berg { 54252b86c4SJohannes Berg struct sk_buff *skb; 552de8e0d9SJohannes Berg struct ieee80211_hdr *hdr; 56c2d1560aSJohannes Berg 57252b86c4SJohannes Berg skb_queue_walk(&tx->skbs, skb) { 582de8e0d9SJohannes Berg hdr = (struct ieee80211_hdr *) skb->data; 59c2d1560aSJohannes Berg hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); 60252b86c4SJohannes Berg } 61c2d1560aSJohannes Berg } 62c2d1560aSJohannes Berg 6357fbcce3SJohannes Berg int ieee80211_frame_duration(enum nl80211_band band, size_t len, 64438b61b7SSimon Wunderlich int rate, int erp, int short_preamble, 65438b61b7SSimon Wunderlich int shift) 66c2d1560aSJohannes Berg { 67c2d1560aSJohannes Berg int dur; 68c2d1560aSJohannes Berg 69c2d1560aSJohannes Berg /* calculate duration (in microseconds, rounded up to next higher 70c2d1560aSJohannes Berg * integer if it includes a fractional microsecond) to send frame of 71c2d1560aSJohannes Berg * len bytes (does not include FCS) at the given rate. Duration will 72c2d1560aSJohannes Berg * also include SIFS. 73c2d1560aSJohannes Berg * 74c2d1560aSJohannes Berg * rate is in 100 kbps, so divident is multiplied by 10 in the 75c2d1560aSJohannes Berg * DIV_ROUND_UP() operations. 76438b61b7SSimon Wunderlich * 77438b61b7SSimon Wunderlich * shift may be 2 for 5 MHz channels or 1 for 10 MHz channels, and 78438b61b7SSimon Wunderlich * is assumed to be 0 otherwise. 79c2d1560aSJohannes Berg */ 80c2d1560aSJohannes Berg 8157fbcce3SJohannes Berg if (band == NL80211_BAND_5GHZ || erp) { 82c2d1560aSJohannes Berg /* 83c2d1560aSJohannes Berg * OFDM: 84c2d1560aSJohannes Berg * 85c2d1560aSJohannes Berg * N_DBPS = DATARATE x 4 86c2d1560aSJohannes Berg * N_SYM = Ceiling((16+8xLENGTH+6) / N_DBPS) 87c2d1560aSJohannes Berg * (16 = SIGNAL time, 6 = tail bits) 88c2d1560aSJohannes Berg * TXTIME = T_PREAMBLE + T_SIGNAL + T_SYM x N_SYM + Signal Ext 89c2d1560aSJohannes Berg * 90c2d1560aSJohannes Berg * T_SYM = 4 usec 91438b61b7SSimon Wunderlich * 802.11a - 18.5.2: aSIFSTime = 16 usec 92c2d1560aSJohannes Berg * 802.11g - 19.8.4: aSIFSTime = 10 usec + 93c2d1560aSJohannes Berg * signal ext = 6 usec 94c2d1560aSJohannes Berg */ 95c2d1560aSJohannes Berg dur = 16; /* SIFS + signal ext */ 96438b61b7SSimon Wunderlich dur += 16; /* IEEE 802.11-2012 18.3.2.4: T_PREAMBLE = 16 usec */ 97438b61b7SSimon Wunderlich dur += 4; /* IEEE 802.11-2012 18.3.2.4: T_SIGNAL = 4 usec */ 98438b61b7SSimon Wunderlich 99438b61b7SSimon Wunderlich /* IEEE 802.11-2012 18.3.2.4: all values above are: 100438b61b7SSimon Wunderlich * * times 4 for 5 MHz 101438b61b7SSimon Wunderlich * * times 2 for 10 MHz 102438b61b7SSimon Wunderlich */ 103438b61b7SSimon Wunderlich dur *= 1 << shift; 1042103dec1SSimon Wunderlich 1052103dec1SSimon Wunderlich /* rates should already consider the channel bandwidth, 1062103dec1SSimon Wunderlich * don't apply divisor again. 1072103dec1SSimon Wunderlich */ 1082103dec1SSimon Wunderlich dur += 4 * DIV_ROUND_UP((16 + 8 * (len + 4) + 6) * 10, 1092103dec1SSimon Wunderlich 4 * rate); /* T_SYM x N_SYM */ 110c2d1560aSJohannes Berg } else { 111c2d1560aSJohannes Berg /* 112c2d1560aSJohannes Berg * 802.11b or 802.11g with 802.11b compatibility: 113c2d1560aSJohannes Berg * 18.3.4: TXTIME = PreambleLength + PLCPHeaderTime + 114c2d1560aSJohannes Berg * Ceiling(((LENGTH+PBCC)x8)/DATARATE). PBCC=0. 115c2d1560aSJohannes Berg * 116c2d1560aSJohannes Berg * 802.11 (DS): 15.3.3, 802.11b: 18.3.4 117c2d1560aSJohannes Berg * aSIFSTime = 10 usec 118c2d1560aSJohannes Berg * aPreambleLength = 144 usec or 72 usec with short preamble 119c2d1560aSJohannes Berg * aPLCPHeaderLength = 48 usec or 24 usec with short preamble 120c2d1560aSJohannes Berg */ 121c2d1560aSJohannes Berg dur = 10; /* aSIFSTime = 10 usec */ 122c2d1560aSJohannes Berg dur += short_preamble ? (72 + 24) : (144 + 48); 123c2d1560aSJohannes Berg 124c2d1560aSJohannes Berg dur += DIV_ROUND_UP(8 * (len + 4) * 10, rate); 125c2d1560aSJohannes Berg } 126c2d1560aSJohannes Berg 127c2d1560aSJohannes Berg return dur; 128c2d1560aSJohannes Berg } 129c2d1560aSJohannes Berg 130c2d1560aSJohannes Berg /* Exported duration function for driver use */ 13132bfd35dSJohannes Berg __le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, 13232bfd35dSJohannes Berg struct ieee80211_vif *vif, 13357fbcce3SJohannes Berg enum nl80211_band band, 1348318d78aSJohannes Berg size_t frame_len, 1358318d78aSJohannes Berg struct ieee80211_rate *rate) 136c2d1560aSJohannes Berg { 13725d834e1SJohannes Berg struct ieee80211_sub_if_data *sdata; 138c2d1560aSJohannes Berg u16 dur; 139438b61b7SSimon Wunderlich int erp, shift = 0; 14025d834e1SJohannes Berg bool short_preamble = false; 141c2d1560aSJohannes Berg 1428318d78aSJohannes Berg erp = 0; 14325d834e1SJohannes Berg if (vif) { 14425d834e1SJohannes Berg sdata = vif_to_sdata(vif); 145bda3933aSJohannes Berg short_preamble = sdata->vif.bss_conf.use_short_preamble; 1468318d78aSJohannes Berg if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) 1478318d78aSJohannes Berg erp = rate->flags & IEEE80211_RATE_ERP_G; 148438b61b7SSimon Wunderlich shift = ieee80211_vif_get_shift(vif); 14925d834e1SJohannes Berg } 1508318d78aSJohannes Berg 1514ee73f33SMichal Kazior dur = ieee80211_frame_duration(band, frame_len, rate->bitrate, erp, 152438b61b7SSimon Wunderlich short_preamble, shift); 153c2d1560aSJohannes Berg 154c2d1560aSJohannes Berg return cpu_to_le16(dur); 155c2d1560aSJohannes Berg } 156c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_generic_frame_duration); 157c2d1560aSJohannes Berg 15832bfd35dSJohannes Berg __le16 ieee80211_rts_duration(struct ieee80211_hw *hw, 15932bfd35dSJohannes Berg struct ieee80211_vif *vif, size_t frame_len, 160e039fa4aSJohannes Berg const struct ieee80211_tx_info *frame_txctl) 161c2d1560aSJohannes Berg { 162c2d1560aSJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 163c2d1560aSJohannes Berg struct ieee80211_rate *rate; 16425d834e1SJohannes Berg struct ieee80211_sub_if_data *sdata; 165471b3efdSJohannes Berg bool short_preamble; 1662103dec1SSimon Wunderlich int erp, shift = 0, bitrate; 167c2d1560aSJohannes Berg u16 dur; 1682e92e6f2SJohannes Berg struct ieee80211_supported_band *sband; 1692e92e6f2SJohannes Berg 1704ee73f33SMichal Kazior sband = local->hw.wiphy->bands[frame_txctl->band]; 171c2d1560aSJohannes Berg 17225d834e1SJohannes Berg short_preamble = false; 1737e9ed188SDaniel Drake 174e039fa4aSJohannes Berg rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx]; 1758318d78aSJohannes Berg 1768318d78aSJohannes Berg erp = 0; 17725d834e1SJohannes Berg if (vif) { 17825d834e1SJohannes Berg sdata = vif_to_sdata(vif); 179bda3933aSJohannes Berg short_preamble = sdata->vif.bss_conf.use_short_preamble; 1808318d78aSJohannes Berg if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) 1818318d78aSJohannes Berg erp = rate->flags & IEEE80211_RATE_ERP_G; 182438b61b7SSimon Wunderlich shift = ieee80211_vif_get_shift(vif); 18325d834e1SJohannes Berg } 184c2d1560aSJohannes Berg 1852103dec1SSimon Wunderlich bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift); 1862103dec1SSimon Wunderlich 187c2d1560aSJohannes Berg /* CTS duration */ 1882103dec1SSimon Wunderlich dur = ieee80211_frame_duration(sband->band, 10, bitrate, 189438b61b7SSimon Wunderlich erp, short_preamble, shift); 190c2d1560aSJohannes Berg /* Data frame duration */ 1912103dec1SSimon Wunderlich dur += ieee80211_frame_duration(sband->band, frame_len, bitrate, 192438b61b7SSimon Wunderlich erp, short_preamble, shift); 193c2d1560aSJohannes Berg /* ACK duration */ 1942103dec1SSimon Wunderlich dur += ieee80211_frame_duration(sband->band, 10, bitrate, 195438b61b7SSimon Wunderlich erp, short_preamble, shift); 196c2d1560aSJohannes Berg 197c2d1560aSJohannes Berg return cpu_to_le16(dur); 198c2d1560aSJohannes Berg } 199c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_rts_duration); 200c2d1560aSJohannes Berg 20132bfd35dSJohannes Berg __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, 20232bfd35dSJohannes Berg struct ieee80211_vif *vif, 203c2d1560aSJohannes Berg size_t frame_len, 204e039fa4aSJohannes Berg const struct ieee80211_tx_info *frame_txctl) 205c2d1560aSJohannes Berg { 206c2d1560aSJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 207c2d1560aSJohannes Berg struct ieee80211_rate *rate; 20825d834e1SJohannes Berg struct ieee80211_sub_if_data *sdata; 209471b3efdSJohannes Berg bool short_preamble; 2102103dec1SSimon Wunderlich int erp, shift = 0, bitrate; 211c2d1560aSJohannes Berg u16 dur; 2122e92e6f2SJohannes Berg struct ieee80211_supported_band *sband; 2132e92e6f2SJohannes Berg 2144ee73f33SMichal Kazior sband = local->hw.wiphy->bands[frame_txctl->band]; 215c2d1560aSJohannes Berg 21625d834e1SJohannes Berg short_preamble = false; 2177e9ed188SDaniel Drake 218e039fa4aSJohannes Berg rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx]; 2198318d78aSJohannes Berg erp = 0; 22025d834e1SJohannes Berg if (vif) { 22125d834e1SJohannes Berg sdata = vif_to_sdata(vif); 222bda3933aSJohannes Berg short_preamble = sdata->vif.bss_conf.use_short_preamble; 2238318d78aSJohannes Berg if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) 2248318d78aSJohannes Berg erp = rate->flags & IEEE80211_RATE_ERP_G; 225438b61b7SSimon Wunderlich shift = ieee80211_vif_get_shift(vif); 22625d834e1SJohannes Berg } 227c2d1560aSJohannes Berg 2282103dec1SSimon Wunderlich bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift); 2292103dec1SSimon Wunderlich 230c2d1560aSJohannes Berg /* Data frame duration */ 2312103dec1SSimon Wunderlich dur = ieee80211_frame_duration(sband->band, frame_len, bitrate, 232438b61b7SSimon Wunderlich erp, short_preamble, shift); 233e039fa4aSJohannes Berg if (!(frame_txctl->flags & IEEE80211_TX_CTL_NO_ACK)) { 234c2d1560aSJohannes Berg /* ACK duration */ 2352103dec1SSimon Wunderlich dur += ieee80211_frame_duration(sband->band, 10, bitrate, 236438b61b7SSimon Wunderlich erp, short_preamble, shift); 237c2d1560aSJohannes Berg } 238c2d1560aSJohannes Berg 239c2d1560aSJohannes Berg return cpu_to_le16(dur); 240c2d1560aSJohannes Berg } 241c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_ctstoself_duration); 242c2d1560aSJohannes Berg 24321a5d4c3SManikanta Pubbisetty static void __ieee80211_wake_txqs(struct ieee80211_sub_if_data *sdata, int ac) 24421a5d4c3SManikanta Pubbisetty { 24521a5d4c3SManikanta Pubbisetty struct ieee80211_local *local = sdata->local; 24621a5d4c3SManikanta Pubbisetty struct ieee80211_vif *vif = &sdata->vif; 24721a5d4c3SManikanta Pubbisetty struct fq *fq = &local->fq; 24821a5d4c3SManikanta Pubbisetty struct ps_data *ps = NULL; 24921a5d4c3SManikanta Pubbisetty struct txq_info *txqi; 25021a5d4c3SManikanta Pubbisetty struct sta_info *sta; 25121a5d4c3SManikanta Pubbisetty int i; 25221a5d4c3SManikanta Pubbisetty 25321a5d4c3SManikanta Pubbisetty spin_lock_bh(&fq->lock); 25421a5d4c3SManikanta Pubbisetty 25521a5d4c3SManikanta Pubbisetty if (sdata->vif.type == NL80211_IFTYPE_AP) 25621a5d4c3SManikanta Pubbisetty ps = &sdata->bss->ps; 25721a5d4c3SManikanta Pubbisetty 25821a5d4c3SManikanta Pubbisetty sdata->vif.txqs_stopped[ac] = false; 25921a5d4c3SManikanta Pubbisetty 26021a5d4c3SManikanta Pubbisetty list_for_each_entry_rcu(sta, &local->sta_list, list) { 26121a5d4c3SManikanta Pubbisetty if (sdata != sta->sdata) 26221a5d4c3SManikanta Pubbisetty continue; 26321a5d4c3SManikanta Pubbisetty 26421a5d4c3SManikanta Pubbisetty for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) { 26521a5d4c3SManikanta Pubbisetty struct ieee80211_txq *txq = sta->sta.txq[i]; 26621a5d4c3SManikanta Pubbisetty 267a5ae3264SErik Stromdahl if (!txq) 268a5ae3264SErik Stromdahl continue; 269a5ae3264SErik Stromdahl 27021a5d4c3SManikanta Pubbisetty txqi = to_txq_info(txq); 27121a5d4c3SManikanta Pubbisetty 27221a5d4c3SManikanta Pubbisetty if (ac != txq->ac) 27321a5d4c3SManikanta Pubbisetty continue; 27421a5d4c3SManikanta Pubbisetty 27521a5d4c3SManikanta Pubbisetty if (!test_and_clear_bit(IEEE80211_TXQ_STOP_NETIF_TX, 27621a5d4c3SManikanta Pubbisetty &txqi->flags)) 27721a5d4c3SManikanta Pubbisetty continue; 27821a5d4c3SManikanta Pubbisetty 27921a5d4c3SManikanta Pubbisetty spin_unlock_bh(&fq->lock); 28021a5d4c3SManikanta Pubbisetty drv_wake_tx_queue(local, txqi); 28121a5d4c3SManikanta Pubbisetty spin_lock_bh(&fq->lock); 28221a5d4c3SManikanta Pubbisetty } 28321a5d4c3SManikanta Pubbisetty } 28421a5d4c3SManikanta Pubbisetty 28521a5d4c3SManikanta Pubbisetty if (!vif->txq) 28621a5d4c3SManikanta Pubbisetty goto out; 28721a5d4c3SManikanta Pubbisetty 28821a5d4c3SManikanta Pubbisetty txqi = to_txq_info(vif->txq); 28921a5d4c3SManikanta Pubbisetty 29021a5d4c3SManikanta Pubbisetty if (!test_and_clear_bit(IEEE80211_TXQ_STOP_NETIF_TX, &txqi->flags) || 29121a5d4c3SManikanta Pubbisetty (ps && atomic_read(&ps->num_sta_ps)) || ac != vif->txq->ac) 29221a5d4c3SManikanta Pubbisetty goto out; 29321a5d4c3SManikanta Pubbisetty 29421a5d4c3SManikanta Pubbisetty spin_unlock_bh(&fq->lock); 29521a5d4c3SManikanta Pubbisetty 29621a5d4c3SManikanta Pubbisetty drv_wake_tx_queue(local, txqi); 29721a5d4c3SManikanta Pubbisetty return; 29821a5d4c3SManikanta Pubbisetty out: 29921a5d4c3SManikanta Pubbisetty spin_unlock_bh(&fq->lock); 30021a5d4c3SManikanta Pubbisetty } 30121a5d4c3SManikanta Pubbisetty 302f6c7f03fSEmmanuel Grumbach static void 303f6c7f03fSEmmanuel Grumbach __releases(&local->queue_stop_reason_lock) 304f6c7f03fSEmmanuel Grumbach __acquires(&local->queue_stop_reason_lock) 305f6c7f03fSEmmanuel Grumbach _ieee80211_wake_txqs(struct ieee80211_local *local, unsigned long *flags) 30621a5d4c3SManikanta Pubbisetty { 30721a5d4c3SManikanta Pubbisetty struct ieee80211_sub_if_data *sdata; 30821a5d4c3SManikanta Pubbisetty int n_acs = IEEE80211_NUM_ACS; 30921a5d4c3SManikanta Pubbisetty int i; 31021a5d4c3SManikanta Pubbisetty 31121a5d4c3SManikanta Pubbisetty rcu_read_lock(); 31221a5d4c3SManikanta Pubbisetty 31321a5d4c3SManikanta Pubbisetty if (local->hw.queues < IEEE80211_NUM_ACS) 31421a5d4c3SManikanta Pubbisetty n_acs = 1; 31521a5d4c3SManikanta Pubbisetty 31621a5d4c3SManikanta Pubbisetty for (i = 0; i < local->hw.queues; i++) { 31721a5d4c3SManikanta Pubbisetty if (local->queue_stop_reasons[i]) 31821a5d4c3SManikanta Pubbisetty continue; 31921a5d4c3SManikanta Pubbisetty 320f6c7f03fSEmmanuel Grumbach spin_unlock_irqrestore(&local->queue_stop_reason_lock, *flags); 32121a5d4c3SManikanta Pubbisetty list_for_each_entry_rcu(sdata, &local->interfaces, list) { 32221a5d4c3SManikanta Pubbisetty int ac; 32321a5d4c3SManikanta Pubbisetty 32421a5d4c3SManikanta Pubbisetty for (ac = 0; ac < n_acs; ac++) { 32521a5d4c3SManikanta Pubbisetty int ac_queue = sdata->vif.hw_queue[ac]; 32621a5d4c3SManikanta Pubbisetty 32721a5d4c3SManikanta Pubbisetty if (ac_queue == i || 32821a5d4c3SManikanta Pubbisetty sdata->vif.cab_queue == i) 32921a5d4c3SManikanta Pubbisetty __ieee80211_wake_txqs(sdata, ac); 33021a5d4c3SManikanta Pubbisetty } 33121a5d4c3SManikanta Pubbisetty } 332f6c7f03fSEmmanuel Grumbach spin_lock_irqsave(&local->queue_stop_reason_lock, *flags); 33321a5d4c3SManikanta Pubbisetty } 33421a5d4c3SManikanta Pubbisetty 33521a5d4c3SManikanta Pubbisetty rcu_read_unlock(); 33621a5d4c3SManikanta Pubbisetty } 33721a5d4c3SManikanta Pubbisetty 338f6c7f03fSEmmanuel Grumbach void ieee80211_wake_txqs(unsigned long data) 339f6c7f03fSEmmanuel Grumbach { 340f6c7f03fSEmmanuel Grumbach struct ieee80211_local *local = (struct ieee80211_local *)data; 341f6c7f03fSEmmanuel Grumbach unsigned long flags; 342f6c7f03fSEmmanuel Grumbach 343f6c7f03fSEmmanuel Grumbach spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 344f6c7f03fSEmmanuel Grumbach _ieee80211_wake_txqs(local, &flags); 345f6c7f03fSEmmanuel Grumbach spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 346f6c7f03fSEmmanuel Grumbach } 347f6c7f03fSEmmanuel Grumbach 3483a25a8c8SJohannes Berg void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue) 3493a25a8c8SJohannes Berg { 3503a25a8c8SJohannes Berg struct ieee80211_sub_if_data *sdata; 351a6f38ac3SJohannes Berg int n_acs = IEEE80211_NUM_ACS; 352a6f38ac3SJohannes Berg 35380a83cfcSMichal Kazior if (local->ops->wake_tx_queue) 35480a83cfcSMichal Kazior return; 35580a83cfcSMichal Kazior 356a6f38ac3SJohannes Berg if (local->hw.queues < IEEE80211_NUM_ACS) 357a6f38ac3SJohannes Berg n_acs = 1; 3583a25a8c8SJohannes Berg 3593a25a8c8SJohannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) { 3603a25a8c8SJohannes Berg int ac; 3613a25a8c8SJohannes Berg 362f142c6b9SJohannes Berg if (!sdata->dev) 363f142c6b9SJohannes Berg continue; 364f142c6b9SJohannes Berg 3653a25a8c8SJohannes Berg if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE && 3663a25a8c8SJohannes Berg local->queue_stop_reasons[sdata->vif.cab_queue] != 0) 3673a25a8c8SJohannes Berg continue; 3683a25a8c8SJohannes Berg 369a6f38ac3SJohannes Berg for (ac = 0; ac < n_acs; ac++) { 3703a25a8c8SJohannes Berg int ac_queue = sdata->vif.hw_queue[ac]; 3713a25a8c8SJohannes Berg 3723a25a8c8SJohannes Berg if (ac_queue == queue || 3733a25a8c8SJohannes Berg (sdata->vif.cab_queue == queue && 3743a25a8c8SJohannes Berg local->queue_stop_reasons[ac_queue] == 0 && 3753a25a8c8SJohannes Berg skb_queue_empty(&local->pending[ac_queue]))) 3763a25a8c8SJohannes Berg netif_wake_subqueue(sdata->dev, ac); 3773a25a8c8SJohannes Berg } 3783a25a8c8SJohannes Berg } 3793a25a8c8SJohannes Berg } 3803a25a8c8SJohannes Berg 381ce7c9111SKalle Valo static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue, 382cca07b00SLuciano Coelho enum queue_stop_reason reason, 383f6c7f03fSEmmanuel Grumbach bool refcounted, 384f6c7f03fSEmmanuel Grumbach unsigned long *flags) 385c2d1560aSJohannes Berg { 386c2d1560aSJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 387c2d1560aSJohannes Berg 388b5878a2dSJohannes Berg trace_wake_queue(local, queue, reason); 389b5878a2dSJohannes Berg 390e4e72fb4SJohannes Berg if (WARN_ON(queue >= hw->queues)) 39196f5e66eSJohannes Berg return; 39296f5e66eSJohannes Berg 393ada15125SJohannes Berg if (!test_bit(reason, &local->queue_stop_reasons[queue])) 394ada15125SJohannes Berg return; 395ada15125SJohannes Berg 396856142cdSJohannes Berg if (!refcounted) { 397cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason] = 0; 398856142cdSJohannes Berg } else { 399cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason]--; 400856142cdSJohannes Berg if (WARN_ON(local->q_stop_reasons[queue][reason] < 0)) 401856142cdSJohannes Berg local->q_stop_reasons[queue][reason] = 0; 402856142cdSJohannes Berg } 403cca07b00SLuciano Coelho 404cca07b00SLuciano Coelho if (local->q_stop_reasons[queue][reason] == 0) 405ce7c9111SKalle Valo __clear_bit(reason, &local->queue_stop_reasons[queue]); 406ce7c9111SKalle Valo 407ce7c9111SKalle Valo if (local->queue_stop_reasons[queue] != 0) 408ce7c9111SKalle Valo /* someone still has this queue stopped */ 409ce7c9111SKalle Valo return; 410ce7c9111SKalle Valo 4117236fe29SJohannes Berg if (skb_queue_empty(&local->pending[queue])) { 412cf0277e7SJohannes Berg rcu_read_lock(); 4133a25a8c8SJohannes Berg ieee80211_propagate_queue_wake(local, queue); 414cf0277e7SJohannes Berg rcu_read_unlock(); 4157236fe29SJohannes Berg } else 4167236fe29SJohannes Berg tasklet_schedule(&local->tx_pending_tasklet); 41721a5d4c3SManikanta Pubbisetty 418f6c7f03fSEmmanuel Grumbach /* 419f6c7f03fSEmmanuel Grumbach * Calling _ieee80211_wake_txqs here can be a problem because it may 420f6c7f03fSEmmanuel Grumbach * release queue_stop_reason_lock which has been taken by 421f6c7f03fSEmmanuel Grumbach * __ieee80211_wake_queue's caller. It is certainly not very nice to 422f6c7f03fSEmmanuel Grumbach * release someone's lock, but it is fine because all the callers of 423f6c7f03fSEmmanuel Grumbach * __ieee80211_wake_queue call it right before releasing the lock. 424f6c7f03fSEmmanuel Grumbach */ 425f6c7f03fSEmmanuel Grumbach if (local->ops->wake_tx_queue) { 426f6c7f03fSEmmanuel Grumbach if (reason == IEEE80211_QUEUE_STOP_REASON_DRIVER) 42721a5d4c3SManikanta Pubbisetty tasklet_schedule(&local->wake_txqs_tasklet); 428f6c7f03fSEmmanuel Grumbach else 429f6c7f03fSEmmanuel Grumbach _ieee80211_wake_txqs(local, flags); 430f6c7f03fSEmmanuel Grumbach } 431c2d1560aSJohannes Berg } 432ce7c9111SKalle Valo 43396f5e66eSJohannes Berg void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, 434cca07b00SLuciano Coelho enum queue_stop_reason reason, 435cca07b00SLuciano Coelho bool refcounted) 436ce7c9111SKalle Valo { 437ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 438ce7c9111SKalle Valo unsigned long flags; 439ce7c9111SKalle Valo 440ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 441f6c7f03fSEmmanuel Grumbach __ieee80211_wake_queue(hw, queue, reason, refcounted, &flags); 442ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 443ce7c9111SKalle Valo } 444ce7c9111SKalle Valo 445ce7c9111SKalle Valo void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue) 446ce7c9111SKalle Valo { 447ce7c9111SKalle Valo ieee80211_wake_queue_by_reason(hw, queue, 448cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 449cca07b00SLuciano Coelho false); 450ce7c9111SKalle Valo } 451c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_wake_queue); 452c2d1560aSJohannes Berg 453ce7c9111SKalle Valo static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue, 454cca07b00SLuciano Coelho enum queue_stop_reason reason, 455cca07b00SLuciano Coelho bool refcounted) 456c2d1560aSJohannes Berg { 457c2d1560aSJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 458cf0277e7SJohannes Berg struct ieee80211_sub_if_data *sdata; 459a6f38ac3SJohannes Berg int n_acs = IEEE80211_NUM_ACS; 460c2d1560aSJohannes Berg 461b5878a2dSJohannes Berg trace_stop_queue(local, queue, reason); 462b5878a2dSJohannes Berg 463e4e72fb4SJohannes Berg if (WARN_ON(queue >= hw->queues)) 46496f5e66eSJohannes Berg return; 46596f5e66eSJohannes Berg 466cca07b00SLuciano Coelho if (!refcounted) 467cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason] = 1; 468cca07b00SLuciano Coelho else 469cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason]++; 470ada15125SJohannes Berg 471cca07b00SLuciano Coelho if (__test_and_set_bit(reason, &local->queue_stop_reasons[queue])) 472cca07b00SLuciano Coelho return; 473cf0277e7SJohannes Berg 474a6f38ac3SJohannes Berg if (local->hw.queues < IEEE80211_NUM_ACS) 475a6f38ac3SJohannes Berg n_acs = 1; 476a6f38ac3SJohannes Berg 477cf0277e7SJohannes Berg rcu_read_lock(); 4783a25a8c8SJohannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) { 4793a25a8c8SJohannes Berg int ac; 4803a25a8c8SJohannes Berg 481f142c6b9SJohannes Berg if (!sdata->dev) 482f142c6b9SJohannes Berg continue; 483f142c6b9SJohannes Berg 484a6f38ac3SJohannes Berg for (ac = 0; ac < n_acs; ac++) { 4853a25a8c8SJohannes Berg if (sdata->vif.hw_queue[ac] == queue || 48621a5d4c3SManikanta Pubbisetty sdata->vif.cab_queue == queue) { 48721a5d4c3SManikanta Pubbisetty if (!local->ops->wake_tx_queue) { 4883a25a8c8SJohannes Berg netif_stop_subqueue(sdata->dev, ac); 48921a5d4c3SManikanta Pubbisetty continue; 49021a5d4c3SManikanta Pubbisetty } 49121a5d4c3SManikanta Pubbisetty spin_lock(&local->fq.lock); 49221a5d4c3SManikanta Pubbisetty sdata->vif.txqs_stopped[ac] = true; 49321a5d4c3SManikanta Pubbisetty spin_unlock(&local->fq.lock); 49421a5d4c3SManikanta Pubbisetty } 4953a25a8c8SJohannes Berg } 4963a25a8c8SJohannes Berg } 497cf0277e7SJohannes Berg rcu_read_unlock(); 498c2d1560aSJohannes Berg } 499ce7c9111SKalle Valo 50096f5e66eSJohannes Berg void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, 501cca07b00SLuciano Coelho enum queue_stop_reason reason, 502cca07b00SLuciano Coelho bool refcounted) 503ce7c9111SKalle Valo { 504ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 505ce7c9111SKalle Valo unsigned long flags; 506ce7c9111SKalle Valo 507ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 508cca07b00SLuciano Coelho __ieee80211_stop_queue(hw, queue, reason, refcounted); 509ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 510ce7c9111SKalle Valo } 511ce7c9111SKalle Valo 512ce7c9111SKalle Valo void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue) 513ce7c9111SKalle Valo { 514ce7c9111SKalle Valo ieee80211_stop_queue_by_reason(hw, queue, 515cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 516cca07b00SLuciano Coelho false); 517ce7c9111SKalle Valo } 518c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_stop_queue); 519c2d1560aSJohannes Berg 5208f77f384SJohannes Berg void ieee80211_add_pending_skb(struct ieee80211_local *local, 5218f77f384SJohannes Berg struct sk_buff *skb) 5228f77f384SJohannes Berg { 5238f77f384SJohannes Berg struct ieee80211_hw *hw = &local->hw; 5248f77f384SJohannes Berg unsigned long flags; 525a7bc376cSJohannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 5263a25a8c8SJohannes Berg int queue = info->hw_queue; 527a7bc376cSJohannes Berg 528a7bc376cSJohannes Berg if (WARN_ON(!info->control.vif)) { 529d4fa14cdSFelix Fietkau ieee80211_free_txskb(&local->hw, skb); 530a7bc376cSJohannes Berg return; 531a7bc376cSJohannes Berg } 5328f77f384SJohannes Berg 5338f77f384SJohannes Berg spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 534cca07b00SLuciano Coelho __ieee80211_stop_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 535cca07b00SLuciano Coelho false); 5363b8d81e0SJohannes Berg __skb_queue_tail(&local->pending[queue], skb); 537cca07b00SLuciano Coelho __ieee80211_wake_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 538f6c7f03fSEmmanuel Grumbach false, &flags); 5398f77f384SJohannes Berg spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 5408f77f384SJohannes Berg } 5418f77f384SJohannes Berg 542e3685e03SJohannes Berg void ieee80211_add_pending_skbs(struct ieee80211_local *local, 543e3685e03SJohannes Berg struct sk_buff_head *skbs) 5448f77f384SJohannes Berg { 5458f77f384SJohannes Berg struct ieee80211_hw *hw = &local->hw; 5468f77f384SJohannes Berg struct sk_buff *skb; 5478f77f384SJohannes Berg unsigned long flags; 548b0b97a8aSJohannes Berg int queue, i; 5498f77f384SJohannes Berg 5508f77f384SJohannes Berg spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 5518f77f384SJohannes Berg while ((skb = skb_dequeue(skbs))) { 552a7bc376cSJohannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 553a7bc376cSJohannes Berg 554a7bc376cSJohannes Berg if (WARN_ON(!info->control.vif)) { 555d4fa14cdSFelix Fietkau ieee80211_free_txskb(&local->hw, skb); 556a7bc376cSJohannes Berg continue; 557a7bc376cSJohannes Berg } 558a7bc376cSJohannes Berg 5593a25a8c8SJohannes Berg queue = info->hw_queue; 5604644ae89SJohannes Berg 5614644ae89SJohannes Berg __ieee80211_stop_queue(hw, queue, 562cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 563cca07b00SLuciano Coelho false); 5644644ae89SJohannes Berg 5653b8d81e0SJohannes Berg __skb_queue_tail(&local->pending[queue], skb); 5668f77f384SJohannes Berg } 5678f77f384SJohannes Berg 5683b8d81e0SJohannes Berg for (i = 0; i < hw->queues; i++) 5698f77f384SJohannes Berg __ieee80211_wake_queue(hw, i, 570cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 571f6c7f03fSEmmanuel Grumbach false, &flags); 5728f77f384SJohannes Berg spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 5738f77f384SJohannes Berg } 5748f77f384SJohannes Berg 575ce7c9111SKalle Valo void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, 576445ea4e8SJohannes Berg unsigned long queues, 577cca07b00SLuciano Coelho enum queue_stop_reason reason, 578cca07b00SLuciano Coelho bool refcounted) 579c2d1560aSJohannes Berg { 580ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 581ce7c9111SKalle Valo unsigned long flags; 582c2d1560aSJohannes Berg int i; 583c2d1560aSJohannes Berg 584ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 585ce7c9111SKalle Valo 586445ea4e8SJohannes Berg for_each_set_bit(i, &queues, hw->queues) 587cca07b00SLuciano Coelho __ieee80211_stop_queue(hw, i, reason, refcounted); 588ce7c9111SKalle Valo 589ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 590ce7c9111SKalle Valo } 591ce7c9111SKalle Valo 592ce7c9111SKalle Valo void ieee80211_stop_queues(struct ieee80211_hw *hw) 593ce7c9111SKalle Valo { 594445ea4e8SJohannes Berg ieee80211_stop_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, 595cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 596cca07b00SLuciano Coelho false); 597c2d1560aSJohannes Berg } 598c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_stop_queues); 599c2d1560aSJohannes Berg 60092ab8535STomas Winkler int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue) 60192ab8535STomas Winkler { 60292ab8535STomas Winkler struct ieee80211_local *local = hw_to_local(hw); 6033b8d81e0SJohannes Berg unsigned long flags; 6043b8d81e0SJohannes Berg int ret; 60596f5e66eSJohannes Berg 606e4e72fb4SJohannes Berg if (WARN_ON(queue >= hw->queues)) 60796f5e66eSJohannes Berg return true; 60896f5e66eSJohannes Berg 6093b8d81e0SJohannes Berg spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 6102419ea14SThomas Pedersen ret = test_bit(IEEE80211_QUEUE_STOP_REASON_DRIVER, 6112419ea14SThomas Pedersen &local->queue_stop_reasons[queue]); 6123b8d81e0SJohannes Berg spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 6133b8d81e0SJohannes Berg return ret; 61492ab8535STomas Winkler } 61592ab8535STomas Winkler EXPORT_SYMBOL(ieee80211_queue_stopped); 61692ab8535STomas Winkler 617ce7c9111SKalle Valo void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, 618445ea4e8SJohannes Berg unsigned long queues, 619cca07b00SLuciano Coelho enum queue_stop_reason reason, 620cca07b00SLuciano Coelho bool refcounted) 621c2d1560aSJohannes Berg { 622ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 623ce7c9111SKalle Valo unsigned long flags; 624c2d1560aSJohannes Berg int i; 625c2d1560aSJohannes Berg 626ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 627ce7c9111SKalle Valo 628445ea4e8SJohannes Berg for_each_set_bit(i, &queues, hw->queues) 629f6c7f03fSEmmanuel Grumbach __ieee80211_wake_queue(hw, i, reason, refcounted, &flags); 630ce7c9111SKalle Valo 631ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 632ce7c9111SKalle Valo } 633ce7c9111SKalle Valo 634ce7c9111SKalle Valo void ieee80211_wake_queues(struct ieee80211_hw *hw) 635ce7c9111SKalle Valo { 636445ea4e8SJohannes Berg ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, 637cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 638cca07b00SLuciano Coelho false); 639c2d1560aSJohannes Berg } 640c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_wake_queues); 641dabeb344SJohannes Berg 64226da23b6SLuciano Coelho static unsigned int 64326da23b6SLuciano Coelho ieee80211_get_vif_queues(struct ieee80211_local *local, 64439ecc01dSJohannes Berg struct ieee80211_sub_if_data *sdata) 64539ecc01dSJohannes Berg { 64626da23b6SLuciano Coelho unsigned int queues; 64739ecc01dSJohannes Berg 64830686bf7SJohannes Berg if (sdata && ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) { 64939ecc01dSJohannes Berg int ac; 65039ecc01dSJohannes Berg 65139ecc01dSJohannes Berg queues = 0; 65239ecc01dSJohannes Berg 65339ecc01dSJohannes Berg for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 65439ecc01dSJohannes Berg queues |= BIT(sdata->vif.hw_queue[ac]); 65539ecc01dSJohannes Berg if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE) 65639ecc01dSJohannes Berg queues |= BIT(sdata->vif.cab_queue); 65739ecc01dSJohannes Berg } else { 65839ecc01dSJohannes Berg /* all queues */ 65939ecc01dSJohannes Berg queues = BIT(local->hw.queues) - 1; 66039ecc01dSJohannes Berg } 66139ecc01dSJohannes Berg 66226da23b6SLuciano Coelho return queues; 66326da23b6SLuciano Coelho } 66426da23b6SLuciano Coelho 6654f9610d5SLiad Kaufman void __ieee80211_flush_queues(struct ieee80211_local *local, 6664f9610d5SLiad Kaufman struct ieee80211_sub_if_data *sdata, 6673b24f4c6SEmmanuel Grumbach unsigned int queues, bool drop) 66826da23b6SLuciano Coelho { 66926da23b6SLuciano Coelho if (!local->ops->flush) 67026da23b6SLuciano Coelho return; 67126da23b6SLuciano Coelho 6724f9610d5SLiad Kaufman /* 6734f9610d5SLiad Kaufman * If no queue was set, or if the HW doesn't support 6744f9610d5SLiad Kaufman * IEEE80211_HW_QUEUE_CONTROL - flush all queues 6754f9610d5SLiad Kaufman */ 67630686bf7SJohannes Berg if (!queues || !ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) 67726da23b6SLuciano Coelho queues = ieee80211_get_vif_queues(local, sdata); 67826da23b6SLuciano Coelho 67959f48fe2SLuciano Coelho ieee80211_stop_queues_by_reason(&local->hw, queues, 680cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_FLUSH, 681cca07b00SLuciano Coelho false); 682445ea4e8SJohannes Berg 6833b24f4c6SEmmanuel Grumbach drv_flush(local, sdata, queues, drop); 684445ea4e8SJohannes Berg 68559f48fe2SLuciano Coelho ieee80211_wake_queues_by_reason(&local->hw, queues, 686cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_FLUSH, 687cca07b00SLuciano Coelho false); 68839ecc01dSJohannes Berg } 68939ecc01dSJohannes Berg 6904f9610d5SLiad Kaufman void ieee80211_flush_queues(struct ieee80211_local *local, 6913b24f4c6SEmmanuel Grumbach struct ieee80211_sub_if_data *sdata, bool drop) 6924f9610d5SLiad Kaufman { 6933b24f4c6SEmmanuel Grumbach __ieee80211_flush_queues(local, sdata, 0, drop); 6944f9610d5SLiad Kaufman } 6954f9610d5SLiad Kaufman 69626da23b6SLuciano Coelho void ieee80211_stop_vif_queues(struct ieee80211_local *local, 69726da23b6SLuciano Coelho struct ieee80211_sub_if_data *sdata, 69826da23b6SLuciano Coelho enum queue_stop_reason reason) 69926da23b6SLuciano Coelho { 70026da23b6SLuciano Coelho ieee80211_stop_queues_by_reason(&local->hw, 70126da23b6SLuciano Coelho ieee80211_get_vif_queues(local, sdata), 70226da23b6SLuciano Coelho reason, true); 70326da23b6SLuciano Coelho } 70426da23b6SLuciano Coelho 70526da23b6SLuciano Coelho void ieee80211_wake_vif_queues(struct ieee80211_local *local, 70626da23b6SLuciano Coelho struct ieee80211_sub_if_data *sdata, 70726da23b6SLuciano Coelho enum queue_stop_reason reason) 70826da23b6SLuciano Coelho { 70926da23b6SLuciano Coelho ieee80211_wake_queues_by_reason(&local->hw, 71026da23b6SLuciano Coelho ieee80211_get_vif_queues(local, sdata), 71126da23b6SLuciano Coelho reason, true); 71226da23b6SLuciano Coelho } 71326da23b6SLuciano Coelho 7143384d757SArik Nemtsov static void __iterate_interfaces(struct ieee80211_local *local, 715c7c71066SJohannes Berg u32 iter_flags, 716dabeb344SJohannes Berg void (*iterator)(void *data, u8 *mac, 71732bfd35dSJohannes Berg struct ieee80211_vif *vif), 718dabeb344SJohannes Berg void *data) 719dabeb344SJohannes Berg { 720dabeb344SJohannes Berg struct ieee80211_sub_if_data *sdata; 7213384d757SArik Nemtsov bool active_only = iter_flags & IEEE80211_IFACE_ITER_ACTIVE; 722dabeb344SJohannes Berg 723e38bad47SJohannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) { 72451fb61e7SJohannes Berg switch (sdata->vif.type) { 72505c914feSJohannes Berg case NL80211_IFTYPE_MONITOR: 726d8212184SAviya Erenfeld if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE)) 72731eba5bcSFelix Fietkau continue; 72831eba5bcSFelix Fietkau break; 72905c914feSJohannes Berg case NL80211_IFTYPE_AP_VLAN: 730dabeb344SJohannes Berg continue; 7312ca27bcfSJohannes Berg default: 732dabeb344SJohannes Berg break; 733dabeb344SJohannes Berg } 7348b2c9824SJohannes Berg if (!(iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL) && 7353384d757SArik Nemtsov active_only && !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 7368b2c9824SJohannes Berg continue; 7373384d757SArik Nemtsov if (ieee80211_sdata_running(sdata) || !active_only) 73847846c9bSJohannes Berg iterator(data, sdata->vif.addr, 73932bfd35dSJohannes Berg &sdata->vif); 740dabeb344SJohannes Berg } 741e38bad47SJohannes Berg 742c7c71066SJohannes Berg sdata = rcu_dereference_check(local->monitor_sdata, 743c7c71066SJohannes Berg lockdep_is_held(&local->iflist_mtx) || 744c7c71066SJohannes Berg lockdep_rtnl_is_held()); 7458b2c9824SJohannes Berg if (sdata && 7463384d757SArik Nemtsov (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL || !active_only || 7478b2c9824SJohannes Berg sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 748685fb72bSJohannes Berg iterator(data, sdata->vif.addr, &sdata->vif); 749c7c71066SJohannes Berg } 750685fb72bSJohannes Berg 7513384d757SArik Nemtsov void ieee80211_iterate_interfaces( 752c7c71066SJohannes Berg struct ieee80211_hw *hw, u32 iter_flags, 753c7c71066SJohannes Berg void (*iterator)(void *data, u8 *mac, 754c7c71066SJohannes Berg struct ieee80211_vif *vif), 755c7c71066SJohannes Berg void *data) 756c7c71066SJohannes Berg { 757c7c71066SJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 758c7c71066SJohannes Berg 759c7c71066SJohannes Berg mutex_lock(&local->iflist_mtx); 7603384d757SArik Nemtsov __iterate_interfaces(local, iter_flags, iterator, data); 761c7c71066SJohannes Berg mutex_unlock(&local->iflist_mtx); 762c7c71066SJohannes Berg } 7633384d757SArik Nemtsov EXPORT_SYMBOL_GPL(ieee80211_iterate_interfaces); 764c7c71066SJohannes Berg 765c7c71066SJohannes Berg void ieee80211_iterate_active_interfaces_atomic( 766c7c71066SJohannes Berg struct ieee80211_hw *hw, u32 iter_flags, 767c7c71066SJohannes Berg void (*iterator)(void *data, u8 *mac, 768c7c71066SJohannes Berg struct ieee80211_vif *vif), 769c7c71066SJohannes Berg void *data) 770c7c71066SJohannes Berg { 771c7c71066SJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 772c7c71066SJohannes Berg 773c7c71066SJohannes Berg rcu_read_lock(); 7743384d757SArik Nemtsov __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE, 7753384d757SArik Nemtsov iterator, data); 776e38bad47SJohannes Berg rcu_read_unlock(); 777dabeb344SJohannes Berg } 7782f561febSIvo van Doorn EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic); 77937ffc8daSJohannes Berg 780c7c71066SJohannes Berg void ieee80211_iterate_active_interfaces_rtnl( 781c7c71066SJohannes Berg struct ieee80211_hw *hw, u32 iter_flags, 782c7c71066SJohannes Berg void (*iterator)(void *data, u8 *mac, 783c7c71066SJohannes Berg struct ieee80211_vif *vif), 784c7c71066SJohannes Berg void *data) 785c7c71066SJohannes Berg { 786c7c71066SJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 787c7c71066SJohannes Berg 788c7c71066SJohannes Berg ASSERT_RTNL(); 789c7c71066SJohannes Berg 7903384d757SArik Nemtsov __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE, 7913384d757SArik Nemtsov iterator, data); 792c7c71066SJohannes Berg } 793c7c71066SJohannes Berg EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_rtnl); 794c7c71066SJohannes Berg 7950fc1e049SArik Nemtsov static void __iterate_stations(struct ieee80211_local *local, 7960fc1e049SArik Nemtsov void (*iterator)(void *data, 7970fc1e049SArik Nemtsov struct ieee80211_sta *sta), 7980fc1e049SArik Nemtsov void *data) 7990fc1e049SArik Nemtsov { 8000fc1e049SArik Nemtsov struct sta_info *sta; 8010fc1e049SArik Nemtsov 8020fc1e049SArik Nemtsov list_for_each_entry_rcu(sta, &local->sta_list, list) { 8030fc1e049SArik Nemtsov if (!sta->uploaded) 8040fc1e049SArik Nemtsov continue; 8050fc1e049SArik Nemtsov 8060fc1e049SArik Nemtsov iterator(data, &sta->sta); 8070fc1e049SArik Nemtsov } 8080fc1e049SArik Nemtsov } 8090fc1e049SArik Nemtsov 8100fc1e049SArik Nemtsov void ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 8110fc1e049SArik Nemtsov void (*iterator)(void *data, 8120fc1e049SArik Nemtsov struct ieee80211_sta *sta), 8130fc1e049SArik Nemtsov void *data) 8140fc1e049SArik Nemtsov { 8150fc1e049SArik Nemtsov struct ieee80211_local *local = hw_to_local(hw); 8160fc1e049SArik Nemtsov 8170fc1e049SArik Nemtsov rcu_read_lock(); 8180fc1e049SArik Nemtsov __iterate_stations(local, iterator, data); 8190fc1e049SArik Nemtsov rcu_read_unlock(); 8200fc1e049SArik Nemtsov } 8210fc1e049SArik Nemtsov EXPORT_SYMBOL_GPL(ieee80211_iterate_stations_atomic); 8220fc1e049SArik Nemtsov 823ad7e718cSJohannes Berg struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev) 824ad7e718cSJohannes Berg { 825ad7e718cSJohannes Berg struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 826ad7e718cSJohannes Berg 827ad7e718cSJohannes Berg if (!ieee80211_sdata_running(sdata) || 828ad7e718cSJohannes Berg !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 829ad7e718cSJohannes Berg return NULL; 830ad7e718cSJohannes Berg return &sdata->vif; 831ad7e718cSJohannes Berg } 832ad7e718cSJohannes Berg EXPORT_SYMBOL_GPL(wdev_to_ieee80211_vif); 833ad7e718cSJohannes Berg 834dc5a1ad7SEmmanuel Grumbach struct wireless_dev *ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 835dc5a1ad7SEmmanuel Grumbach { 8366513e98eSJohannes Berg struct ieee80211_sub_if_data *sdata; 8376513e98eSJohannes Berg 8386513e98eSJohannes Berg if (!vif) 8396513e98eSJohannes Berg return NULL; 8406513e98eSJohannes Berg 8416513e98eSJohannes Berg sdata = vif_to_sdata(vif); 842dc5a1ad7SEmmanuel Grumbach 843dc5a1ad7SEmmanuel Grumbach if (!ieee80211_sdata_running(sdata) || 844dc5a1ad7SEmmanuel Grumbach !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 845dc5a1ad7SEmmanuel Grumbach return NULL; 846dc5a1ad7SEmmanuel Grumbach 847dc5a1ad7SEmmanuel Grumbach return &sdata->wdev; 848dc5a1ad7SEmmanuel Grumbach } 849dc5a1ad7SEmmanuel Grumbach EXPORT_SYMBOL_GPL(ieee80211_vif_to_wdev); 850dc5a1ad7SEmmanuel Grumbach 85142935ecaSLuis R. Rodriguez /* 85242935ecaSLuis R. Rodriguez * Nothing should have been stuffed into the workqueue during 8534afaff17SEmmanuel Grumbach * the suspend->resume cycle. Since we can't check each caller 8544afaff17SEmmanuel Grumbach * of this function if we are already quiescing / suspended, 8554afaff17SEmmanuel Grumbach * check here and don't WARN since this can actually happen when 8564afaff17SEmmanuel Grumbach * the rx path (for example) is racing against __ieee80211_suspend 8574afaff17SEmmanuel Grumbach * and suspending / quiescing was set after the rx path checked 8584afaff17SEmmanuel Grumbach * them. 85942935ecaSLuis R. Rodriguez */ 86042935ecaSLuis R. Rodriguez static bool ieee80211_can_queue_work(struct ieee80211_local *local) 86142935ecaSLuis R. Rodriguez { 8624afaff17SEmmanuel Grumbach if (local->quiescing || (local->suspended && !local->resuming)) { 8634afaff17SEmmanuel Grumbach pr_warn("queueing ieee80211 work while going to suspend\n"); 86442935ecaSLuis R. Rodriguez return false; 8654afaff17SEmmanuel Grumbach } 86642935ecaSLuis R. Rodriguez 86742935ecaSLuis R. Rodriguez return true; 86842935ecaSLuis R. Rodriguez } 86942935ecaSLuis R. Rodriguez 87042935ecaSLuis R. Rodriguez void ieee80211_queue_work(struct ieee80211_hw *hw, struct work_struct *work) 87142935ecaSLuis R. Rodriguez { 87242935ecaSLuis R. Rodriguez struct ieee80211_local *local = hw_to_local(hw); 87342935ecaSLuis R. Rodriguez 87442935ecaSLuis R. Rodriguez if (!ieee80211_can_queue_work(local)) 87542935ecaSLuis R. Rodriguez return; 87642935ecaSLuis R. Rodriguez 87742935ecaSLuis R. Rodriguez queue_work(local->workqueue, work); 87842935ecaSLuis R. Rodriguez } 87942935ecaSLuis R. Rodriguez EXPORT_SYMBOL(ieee80211_queue_work); 88042935ecaSLuis R. Rodriguez 88142935ecaSLuis R. Rodriguez void ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 88242935ecaSLuis R. Rodriguez struct delayed_work *dwork, 88342935ecaSLuis R. Rodriguez unsigned long delay) 88442935ecaSLuis R. Rodriguez { 88542935ecaSLuis R. Rodriguez struct ieee80211_local *local = hw_to_local(hw); 88642935ecaSLuis R. Rodriguez 88742935ecaSLuis R. Rodriguez if (!ieee80211_can_queue_work(local)) 88842935ecaSLuis R. Rodriguez return; 88942935ecaSLuis R. Rodriguez 89042935ecaSLuis R. Rodriguez queue_delayed_work(local->workqueue, dwork, delay); 89142935ecaSLuis R. Rodriguez } 89242935ecaSLuis R. Rodriguez EXPORT_SYMBOL(ieee80211_queue_delayed_work); 89342935ecaSLuis R. Rodriguez 89478ac51f8SSara Sharon static u32 89578ac51f8SSara Sharon _ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, 896dd76986bSJohannes Berg struct ieee802_11_elems *elems, 897671042a4SSara Sharon u64 filter, u32 crc, 898671042a4SSara Sharon const struct element *check_inherit) 899dd76986bSJohannes Berg { 900671042a4SSara Sharon const struct element *elem; 901dd76986bSJohannes Berg bool calc_crc = filter != 0; 902fcff4f10SPaul Stewart DECLARE_BITMAP(seen_elems, 256); 903b2e506bfSJohannes Berg const u8 *ie; 904dd76986bSJohannes Berg 905fcff4f10SPaul Stewart bitmap_zero(seen_elems, 256); 906dd76986bSJohannes Berg 907c17e28d1SJohannes Berg for_each_element(elem, start, len) { 908fcff4f10SPaul Stewart bool elem_parse_failed; 909c17e28d1SJohannes Berg u8 id = elem->id; 910c17e28d1SJohannes Berg u8 elen = elem->datalen; 911c17e28d1SJohannes Berg const u8 *pos = elem->data; 912fcff4f10SPaul Stewart 913671042a4SSara Sharon if (check_inherit && 914671042a4SSara Sharon !cfg80211_is_element_inherited(elem, 915671042a4SSara Sharon check_inherit)) 916671042a4SSara Sharon continue; 917671042a4SSara Sharon 9189690fb16SJohannes Berg switch (id) { 9199690fb16SJohannes Berg case WLAN_EID_SSID: 9209690fb16SJohannes Berg case WLAN_EID_SUPP_RATES: 9219690fb16SJohannes Berg case WLAN_EID_FH_PARAMS: 9229690fb16SJohannes Berg case WLAN_EID_DS_PARAMS: 9239690fb16SJohannes Berg case WLAN_EID_CF_PARAMS: 9249690fb16SJohannes Berg case WLAN_EID_TIM: 9259690fb16SJohannes Berg case WLAN_EID_IBSS_PARAMS: 9269690fb16SJohannes Berg case WLAN_EID_CHALLENGE: 9279690fb16SJohannes Berg case WLAN_EID_RSN: 9289690fb16SJohannes Berg case WLAN_EID_ERP_INFO: 9299690fb16SJohannes Berg case WLAN_EID_EXT_SUPP_RATES: 9309690fb16SJohannes Berg case WLAN_EID_HT_CAPABILITY: 9319690fb16SJohannes Berg case WLAN_EID_HT_OPERATION: 9329690fb16SJohannes Berg case WLAN_EID_VHT_CAPABILITY: 9339690fb16SJohannes Berg case WLAN_EID_VHT_OPERATION: 9349690fb16SJohannes Berg case WLAN_EID_MESH_ID: 9359690fb16SJohannes Berg case WLAN_EID_MESH_CONFIG: 9369690fb16SJohannes Berg case WLAN_EID_PEER_MGMT: 9379690fb16SJohannes Berg case WLAN_EID_PREQ: 9389690fb16SJohannes Berg case WLAN_EID_PREP: 9399690fb16SJohannes Berg case WLAN_EID_PERR: 9409690fb16SJohannes Berg case WLAN_EID_RANN: 9419690fb16SJohannes Berg case WLAN_EID_CHANNEL_SWITCH: 9429690fb16SJohannes Berg case WLAN_EID_EXT_CHANSWITCH_ANN: 9439690fb16SJohannes Berg case WLAN_EID_COUNTRY: 9449690fb16SJohannes Berg case WLAN_EID_PWR_CONSTRAINT: 9459690fb16SJohannes Berg case WLAN_EID_TIMEOUT_INTERVAL: 94685220d71SJohannes Berg case WLAN_EID_SECONDARY_CHANNEL_OFFSET: 947b2e506bfSJohannes Berg case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: 9488f2535b9SChun-Yeow Yeoh case WLAN_EID_CHAN_SWITCH_PARAM: 9499041c1faSArik Nemtsov case WLAN_EID_EXT_CAPABILITY: 95053837584SArik Nemtsov case WLAN_EID_CHAN_SWITCH_TIMING: 95153837584SArik Nemtsov case WLAN_EID_LINK_ID: 952e38a017bSAvraham Stern case WLAN_EID_BSS_MAX_IDLE_PERIOD: 953b2e506bfSJohannes Berg /* 954b2e506bfSJohannes Berg * not listing WLAN_EID_CHANNEL_SWITCH_WRAPPER -- it seems possible 955b2e506bfSJohannes Berg * that if the content gets bigger it might be needed more than once 956b2e506bfSJohannes Berg */ 9579690fb16SJohannes Berg if (test_bit(id, seen_elems)) { 958fcff4f10SPaul Stewart elems->parse_error = true; 959fcff4f10SPaul Stewart continue; 960fcff4f10SPaul Stewart } 9619690fb16SJohannes Berg break; 9629690fb16SJohannes Berg } 963dd76986bSJohannes Berg 964dd76986bSJohannes Berg if (calc_crc && id < 64 && (filter & (1ULL << id))) 965dd76986bSJohannes Berg crc = crc32_be(crc, pos - 2, elen + 2); 966dd76986bSJohannes Berg 967fcff4f10SPaul Stewart elem_parse_failed = false; 968fcff4f10SPaul Stewart 969dd76986bSJohannes Berg switch (id) { 97053837584SArik Nemtsov case WLAN_EID_LINK_ID: 97153837584SArik Nemtsov if (elen + 2 != sizeof(struct ieee80211_tdls_lnkie)) { 97253837584SArik Nemtsov elem_parse_failed = true; 97353837584SArik Nemtsov break; 97453837584SArik Nemtsov } 97553837584SArik Nemtsov elems->lnk_id = (void *)(pos - 2); 97653837584SArik Nemtsov break; 97753837584SArik Nemtsov case WLAN_EID_CHAN_SWITCH_TIMING: 97853837584SArik Nemtsov if (elen != sizeof(struct ieee80211_ch_switch_timing)) { 97953837584SArik Nemtsov elem_parse_failed = true; 98053837584SArik Nemtsov break; 98153837584SArik Nemtsov } 98253837584SArik Nemtsov elems->ch_sw_timing = (void *)pos; 98353837584SArik Nemtsov break; 9849041c1faSArik Nemtsov case WLAN_EID_EXT_CAPABILITY: 9859041c1faSArik Nemtsov elems->ext_capab = pos; 9869041c1faSArik Nemtsov elems->ext_capab_len = elen; 9879041c1faSArik Nemtsov break; 988dd76986bSJohannes Berg case WLAN_EID_SSID: 989dd76986bSJohannes Berg elems->ssid = pos; 990dd76986bSJohannes Berg elems->ssid_len = elen; 991dd76986bSJohannes Berg break; 992dd76986bSJohannes Berg case WLAN_EID_SUPP_RATES: 993dd76986bSJohannes Berg elems->supp_rates = pos; 994dd76986bSJohannes Berg elems->supp_rates_len = elen; 995dd76986bSJohannes Berg break; 996dd76986bSJohannes Berg case WLAN_EID_DS_PARAMS: 9971cd8e88eSJohannes Berg if (elen >= 1) 998dd76986bSJohannes Berg elems->ds_params = pos; 9991cd8e88eSJohannes Berg else 10001cd8e88eSJohannes Berg elem_parse_failed = true; 1001dd76986bSJohannes Berg break; 1002dd76986bSJohannes Berg case WLAN_EID_TIM: 1003dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_tim_ie)) { 1004dd76986bSJohannes Berg elems->tim = (void *)pos; 1005dd76986bSJohannes Berg elems->tim_len = elen; 1006fcff4f10SPaul Stewart } else 1007fcff4f10SPaul Stewart elem_parse_failed = true; 1008dd76986bSJohannes Berg break; 1009dd76986bSJohannes Berg case WLAN_EID_CHALLENGE: 1010dd76986bSJohannes Berg elems->challenge = pos; 1011dd76986bSJohannes Berg elems->challenge_len = elen; 1012dd76986bSJohannes Berg break; 1013dd76986bSJohannes Berg case WLAN_EID_VENDOR_SPECIFIC: 1014dd76986bSJohannes Berg if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 && 1015dd76986bSJohannes Berg pos[2] == 0xf2) { 1016dd76986bSJohannes Berg /* Microsoft OUI (00:50:F2) */ 1017dd76986bSJohannes Berg 1018dd76986bSJohannes Berg if (calc_crc) 1019dd76986bSJohannes Berg crc = crc32_be(crc, pos - 2, elen + 2); 1020dd76986bSJohannes Berg 1021441a33baSJohannes Berg if (elen >= 5 && pos[3] == 2) { 1022dd76986bSJohannes Berg /* OUI Type 2 - WMM IE */ 1023dd76986bSJohannes Berg if (pos[4] == 0) { 1024dd76986bSJohannes Berg elems->wmm_info = pos; 1025dd76986bSJohannes Berg elems->wmm_info_len = elen; 1026dd76986bSJohannes Berg } else if (pos[4] == 1) { 1027dd76986bSJohannes Berg elems->wmm_param = pos; 1028dd76986bSJohannes Berg elems->wmm_param_len = elen; 1029dd76986bSJohannes Berg } 1030dd76986bSJohannes Berg } 1031dd76986bSJohannes Berg } 1032dd76986bSJohannes Berg break; 1033dd76986bSJohannes Berg case WLAN_EID_RSN: 1034dd76986bSJohannes Berg elems->rsn = pos; 1035dd76986bSJohannes Berg elems->rsn_len = elen; 1036dd76986bSJohannes Berg break; 1037dd76986bSJohannes Berg case WLAN_EID_ERP_INFO: 10381946bed9SJohannes Berg if (elen >= 1) 1039dd76986bSJohannes Berg elems->erp_info = pos; 10401946bed9SJohannes Berg else 10411946bed9SJohannes Berg elem_parse_failed = true; 1042dd76986bSJohannes Berg break; 1043dd76986bSJohannes Berg case WLAN_EID_EXT_SUPP_RATES: 1044dd76986bSJohannes Berg elems->ext_supp_rates = pos; 1045dd76986bSJohannes Berg elems->ext_supp_rates_len = elen; 1046dd76986bSJohannes Berg break; 1047dd76986bSJohannes Berg case WLAN_EID_HT_CAPABILITY: 1048dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_ht_cap)) 1049dd76986bSJohannes Berg elems->ht_cap_elem = (void *)pos; 1050fcff4f10SPaul Stewart else 1051fcff4f10SPaul Stewart elem_parse_failed = true; 1052dd76986bSJohannes Berg break; 1053074d46d1SJohannes Berg case WLAN_EID_HT_OPERATION: 1054074d46d1SJohannes Berg if (elen >= sizeof(struct ieee80211_ht_operation)) 1055074d46d1SJohannes Berg elems->ht_operation = (void *)pos; 1056fcff4f10SPaul Stewart else 1057fcff4f10SPaul Stewart elem_parse_failed = true; 1058dd76986bSJohannes Berg break; 1059818255eaSMahesh Palivela case WLAN_EID_VHT_CAPABILITY: 1060818255eaSMahesh Palivela if (elen >= sizeof(struct ieee80211_vht_cap)) 1061818255eaSMahesh Palivela elems->vht_cap_elem = (void *)pos; 1062818255eaSMahesh Palivela else 1063818255eaSMahesh Palivela elem_parse_failed = true; 1064818255eaSMahesh Palivela break; 1065818255eaSMahesh Palivela case WLAN_EID_VHT_OPERATION: 1066818255eaSMahesh Palivela if (elen >= sizeof(struct ieee80211_vht_operation)) 1067818255eaSMahesh Palivela elems->vht_operation = (void *)pos; 1068818255eaSMahesh Palivela else 1069818255eaSMahesh Palivela elem_parse_failed = true; 1070818255eaSMahesh Palivela break; 1071bee7f586SJohannes Berg case WLAN_EID_OPMODE_NOTIF: 1072bee7f586SJohannes Berg if (elen > 0) 1073bee7f586SJohannes Berg elems->opmode_notif = pos; 1074bee7f586SJohannes Berg else 1075bee7f586SJohannes Berg elem_parse_failed = true; 1076bee7f586SJohannes Berg break; 1077dd76986bSJohannes Berg case WLAN_EID_MESH_ID: 1078dd76986bSJohannes Berg elems->mesh_id = pos; 1079dd76986bSJohannes Berg elems->mesh_id_len = elen; 1080dd76986bSJohannes Berg break; 1081dd76986bSJohannes Berg case WLAN_EID_MESH_CONFIG: 1082dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_meshconf_ie)) 1083dd76986bSJohannes Berg elems->mesh_config = (void *)pos; 1084fcff4f10SPaul Stewart else 1085fcff4f10SPaul Stewart elem_parse_failed = true; 1086dd76986bSJohannes Berg break; 1087dd76986bSJohannes Berg case WLAN_EID_PEER_MGMT: 1088dd76986bSJohannes Berg elems->peering = pos; 1089dd76986bSJohannes Berg elems->peering_len = elen; 1090dd76986bSJohannes Berg break; 10913f52b7e3SMarco Porsch case WLAN_EID_MESH_AWAKE_WINDOW: 10923f52b7e3SMarco Porsch if (elen >= 2) 10933f52b7e3SMarco Porsch elems->awake_window = (void *)pos; 10943f52b7e3SMarco Porsch break; 1095dd76986bSJohannes Berg case WLAN_EID_PREQ: 1096dd76986bSJohannes Berg elems->preq = pos; 1097dd76986bSJohannes Berg elems->preq_len = elen; 1098dd76986bSJohannes Berg break; 1099dd76986bSJohannes Berg case WLAN_EID_PREP: 1100dd76986bSJohannes Berg elems->prep = pos; 1101dd76986bSJohannes Berg elems->prep_len = elen; 1102dd76986bSJohannes Berg break; 1103dd76986bSJohannes Berg case WLAN_EID_PERR: 1104dd76986bSJohannes Berg elems->perr = pos; 1105dd76986bSJohannes Berg elems->perr_len = elen; 1106dd76986bSJohannes Berg break; 1107dd76986bSJohannes Berg case WLAN_EID_RANN: 1108dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_rann_ie)) 1109dd76986bSJohannes Berg elems->rann = (void *)pos; 1110fcff4f10SPaul Stewart else 1111fcff4f10SPaul Stewart elem_parse_failed = true; 1112dd76986bSJohannes Berg break; 1113dd76986bSJohannes Berg case WLAN_EID_CHANNEL_SWITCH: 11145bc1420bSJohannes Berg if (elen != sizeof(struct ieee80211_channel_sw_ie)) { 11155bc1420bSJohannes Berg elem_parse_failed = true; 11165bc1420bSJohannes Berg break; 11175bc1420bSJohannes Berg } 11185bc1420bSJohannes Berg elems->ch_switch_ie = (void *)pos; 1119dd76986bSJohannes Berg break; 1120b4f286a1SJohannes Berg case WLAN_EID_EXT_CHANSWITCH_ANN: 1121b4f286a1SJohannes Berg if (elen != sizeof(struct ieee80211_ext_chansw_ie)) { 1122b4f286a1SJohannes Berg elem_parse_failed = true; 1123b4f286a1SJohannes Berg break; 1124b4f286a1SJohannes Berg } 1125b4f286a1SJohannes Berg elems->ext_chansw_ie = (void *)pos; 1126b4f286a1SJohannes Berg break; 112785220d71SJohannes Berg case WLAN_EID_SECONDARY_CHANNEL_OFFSET: 112885220d71SJohannes Berg if (elen != sizeof(struct ieee80211_sec_chan_offs_ie)) { 112985220d71SJohannes Berg elem_parse_failed = true; 113085220d71SJohannes Berg break; 113185220d71SJohannes Berg } 113285220d71SJohannes Berg elems->sec_chan_offs = (void *)pos; 113385220d71SJohannes Berg break; 11348f2535b9SChun-Yeow Yeoh case WLAN_EID_CHAN_SWITCH_PARAM: 11358f2535b9SChun-Yeow Yeoh if (elen != 11368f2535b9SChun-Yeow Yeoh sizeof(*elems->mesh_chansw_params_ie)) { 11378f2535b9SChun-Yeow Yeoh elem_parse_failed = true; 11388f2535b9SChun-Yeow Yeoh break; 11398f2535b9SChun-Yeow Yeoh } 11408f2535b9SChun-Yeow Yeoh elems->mesh_chansw_params_ie = (void *)pos; 11418f2535b9SChun-Yeow Yeoh break; 1142b2e506bfSJohannes Berg case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: 1143b2e506bfSJohannes Berg if (!action || 1144b2e506bfSJohannes Berg elen != sizeof(*elems->wide_bw_chansw_ie)) { 1145b2e506bfSJohannes Berg elem_parse_failed = true; 1146b2e506bfSJohannes Berg break; 1147b2e506bfSJohannes Berg } 1148b2e506bfSJohannes Berg elems->wide_bw_chansw_ie = (void *)pos; 1149b2e506bfSJohannes Berg break; 1150b2e506bfSJohannes Berg case WLAN_EID_CHANNEL_SWITCH_WRAPPER: 1151b2e506bfSJohannes Berg if (action) { 1152b2e506bfSJohannes Berg elem_parse_failed = true; 1153b2e506bfSJohannes Berg break; 1154b2e506bfSJohannes Berg } 1155b2e506bfSJohannes Berg /* 1156b2e506bfSJohannes Berg * This is a bit tricky, but as we only care about 1157b2e506bfSJohannes Berg * the wide bandwidth channel switch element, so 1158b2e506bfSJohannes Berg * just parse it out manually. 1159b2e506bfSJohannes Berg */ 1160b2e506bfSJohannes Berg ie = cfg80211_find_ie(WLAN_EID_WIDE_BW_CHANNEL_SWITCH, 1161b2e506bfSJohannes Berg pos, elen); 1162b2e506bfSJohannes Berg if (ie) { 1163b2e506bfSJohannes Berg if (ie[1] == sizeof(*elems->wide_bw_chansw_ie)) 1164b2e506bfSJohannes Berg elems->wide_bw_chansw_ie = 1165b2e506bfSJohannes Berg (void *)(ie + 2); 1166b2e506bfSJohannes Berg else 1167b2e506bfSJohannes Berg elem_parse_failed = true; 1168b2e506bfSJohannes Berg } 1169b2e506bfSJohannes Berg break; 1170dd76986bSJohannes Berg case WLAN_EID_COUNTRY: 1171dd76986bSJohannes Berg elems->country_elem = pos; 1172dd76986bSJohannes Berg elems->country_elem_len = elen; 1173dd76986bSJohannes Berg break; 1174dd76986bSJohannes Berg case WLAN_EID_PWR_CONSTRAINT: 1175761a48d2SJohannes Berg if (elen != 1) { 1176761a48d2SJohannes Berg elem_parse_failed = true; 1177761a48d2SJohannes Berg break; 1178761a48d2SJohannes Berg } 1179dd76986bSJohannes Berg elems->pwr_constr_elem = pos; 1180dd76986bSJohannes Berg break; 1181c8d65917SSteinar H. Gunderson case WLAN_EID_CISCO_VENDOR_SPECIFIC: 1182c8d65917SSteinar H. Gunderson /* Lots of different options exist, but we only care 1183c8d65917SSteinar H. Gunderson * about the Dynamic Transmit Power Control element. 1184c8d65917SSteinar H. Gunderson * First check for the Cisco OUI, then for the DTPC 1185c8d65917SSteinar H. Gunderson * tag (0x00). 1186c8d65917SSteinar H. Gunderson */ 1187c8d65917SSteinar H. Gunderson if (elen < 4) { 1188c8d65917SSteinar H. Gunderson elem_parse_failed = true; 1189c8d65917SSteinar H. Gunderson break; 1190c8d65917SSteinar H. Gunderson } 1191c8d65917SSteinar H. Gunderson 1192c8d65917SSteinar H. Gunderson if (pos[0] != 0x00 || pos[1] != 0x40 || 1193c8d65917SSteinar H. Gunderson pos[2] != 0x96 || pos[3] != 0x00) 1194c8d65917SSteinar H. Gunderson break; 1195c8d65917SSteinar H. Gunderson 1196c8d65917SSteinar H. Gunderson if (elen != 6) { 1197c8d65917SSteinar H. Gunderson elem_parse_failed = true; 1198c8d65917SSteinar H. Gunderson break; 1199c8d65917SSteinar H. Gunderson } 1200c8d65917SSteinar H. Gunderson 1201c8d65917SSteinar H. Gunderson if (calc_crc) 1202c8d65917SSteinar H. Gunderson crc = crc32_be(crc, pos - 2, elen + 2); 1203c8d65917SSteinar H. Gunderson 1204c8d65917SSteinar H. Gunderson elems->cisco_dtpc_elem = pos; 1205c8d65917SSteinar H. Gunderson break; 1206dd76986bSJohannes Berg case WLAN_EID_TIMEOUT_INTERVAL: 120779ba1d89SJohannes Berg if (elen >= sizeof(struct ieee80211_timeout_interval_ie)) 120879ba1d89SJohannes Berg elems->timeout_int = (void *)pos; 120979ba1d89SJohannes Berg else 121079ba1d89SJohannes Berg elem_parse_failed = true; 1211dd76986bSJohannes Berg break; 1212e38a017bSAvraham Stern case WLAN_EID_BSS_MAX_IDLE_PERIOD: 1213e38a017bSAvraham Stern if (elen >= sizeof(*elems->max_idle_period_ie)) 1214e38a017bSAvraham Stern elems->max_idle_period_ie = (void *)pos; 1215e38a017bSAvraham Stern break; 121641cbb0f5SLuca Coelho case WLAN_EID_EXTENSION: 121741cbb0f5SLuca Coelho if (pos[0] == WLAN_EID_EXT_HE_MU_EDCA && 121841cbb0f5SLuca Coelho elen >= (sizeof(*elems->mu_edca_param_set) + 1)) { 121941cbb0f5SLuca Coelho elems->mu_edca_param_set = (void *)&pos[1]; 12202e249fc3SShaul Triebitz if (calc_crc) 12212e249fc3SShaul Triebitz crc = crc32_be(crc, pos - 2, elen + 2); 122241cbb0f5SLuca Coelho } else if (pos[0] == WLAN_EID_EXT_HE_CAPABILITY) { 122341cbb0f5SLuca Coelho elems->he_cap = (void *)&pos[1]; 122441cbb0f5SLuca Coelho elems->he_cap_len = elen - 1; 122541cbb0f5SLuca Coelho } else if (pos[0] == WLAN_EID_EXT_HE_OPERATION && 122641cbb0f5SLuca Coelho elen >= sizeof(*elems->he_operation) && 122741cbb0f5SLuca Coelho elen >= ieee80211_he_oper_size(&pos[1])) { 122841cbb0f5SLuca Coelho elems->he_operation = (void *)&pos[1]; 122941cbb0f5SLuca Coelho } else if (pos[0] == WLAN_EID_EXT_UORA && elen >= 1) { 123041cbb0f5SLuca Coelho elems->uora_element = (void *)&pos[1]; 123178ac51f8SSara Sharon } else if (pos[0] == 1232ee145775SSara Sharon WLAN_EID_EXT_MAX_CHANNEL_SWITCH_TIME && 1233ee145775SSara Sharon elen == 4) { 1234ee145775SSara Sharon elems->max_channel_switch_time = pos + 1; 1235ee145775SSara Sharon } else if (pos[0] == 123678ac51f8SSara Sharon WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION && 123778ac51f8SSara Sharon elen == 3) { 123878ac51f8SSara Sharon elems->mbssid_config_ie = (void *)&pos[1]; 123941cbb0f5SLuca Coelho } 124041cbb0f5SLuca Coelho break; 1241dd76986bSJohannes Berg default: 1242dd76986bSJohannes Berg break; 1243dd76986bSJohannes Berg } 1244dd76986bSJohannes Berg 1245fcff4f10SPaul Stewart if (elem_parse_failed) 1246fcff4f10SPaul Stewart elems->parse_error = true; 1247fcff4f10SPaul Stewart else 12485df45690SJohannes Berg __set_bit(id, seen_elems); 1249dd76986bSJohannes Berg } 1250dd76986bSJohannes Berg 1251c17e28d1SJohannes Berg if (!for_each_element_completed(elem, start, len)) 1252fcff4f10SPaul Stewart elems->parse_error = true; 1253fcff4f10SPaul Stewart 1254dd76986bSJohannes Berg return crc; 1255dd76986bSJohannes Berg } 1256dd76986bSJohannes Berg 12575023b14cSSara Sharon static size_t ieee802_11_find_bssid_profile(const u8 *start, size_t len, 1258671042a4SSara Sharon struct ieee802_11_elems *elems, 1259671042a4SSara Sharon u8 *transmitter_bssid, 12605023b14cSSara Sharon u8 *bss_bssid, 12615809a5d5SDan Carpenter u8 *nontransmitted_profile) 1262671042a4SSara Sharon { 1263671042a4SSara Sharon const struct element *elem, *sub; 12645023b14cSSara Sharon size_t profile_len = 0; 12655023b14cSSara Sharon bool found = false; 1266671042a4SSara Sharon 1267671042a4SSara Sharon if (!bss_bssid || !transmitter_bssid) 12685023b14cSSara Sharon return profile_len; 1269671042a4SSara Sharon 1270671042a4SSara Sharon for_each_element_id(elem, WLAN_EID_MULTIPLE_BSSID, start, len) { 1271671042a4SSara Sharon if (elem->datalen < 2) 1272671042a4SSara Sharon continue; 1273671042a4SSara Sharon 1274671042a4SSara Sharon for_each_element(sub, elem->data + 1, elem->datalen - 1) { 1275671042a4SSara Sharon u8 new_bssid[ETH_ALEN]; 1276671042a4SSara Sharon const u8 *index; 1277671042a4SSara Sharon 1278671042a4SSara Sharon if (sub->id != 0 || sub->datalen < 4) { 1279671042a4SSara Sharon /* not a valid BSS profile */ 1280671042a4SSara Sharon continue; 1281671042a4SSara Sharon } 1282671042a4SSara Sharon 1283671042a4SSara Sharon if (sub->data[0] != WLAN_EID_NON_TX_BSSID_CAP || 1284671042a4SSara Sharon sub->data[1] != 2) { 1285671042a4SSara Sharon /* The first element of the 1286671042a4SSara Sharon * Nontransmitted BSSID Profile is not 1287671042a4SSara Sharon * the Nontransmitted BSSID Capability 1288671042a4SSara Sharon * element. 1289671042a4SSara Sharon */ 1290671042a4SSara Sharon continue; 1291671042a4SSara Sharon } 1292671042a4SSara Sharon 12935809a5d5SDan Carpenter memset(nontransmitted_profile, 0, len); 12945023b14cSSara Sharon profile_len = cfg80211_merge_profile(start, len, 12955023b14cSSara Sharon elem, 12965023b14cSSara Sharon sub, 12975023b14cSSara Sharon nontransmitted_profile, 12985023b14cSSara Sharon len); 12995023b14cSSara Sharon 1300671042a4SSara Sharon /* found a Nontransmitted BSSID Profile */ 1301671042a4SSara Sharon index = cfg80211_find_ie(WLAN_EID_MULTI_BSSID_IDX, 13025809a5d5SDan Carpenter nontransmitted_profile, 13035023b14cSSara Sharon profile_len); 1304671042a4SSara Sharon if (!index || index[1] < 1 || index[2] == 0) { 1305671042a4SSara Sharon /* Invalid MBSSID Index element */ 1306671042a4SSara Sharon continue; 1307671042a4SSara Sharon } 1308671042a4SSara Sharon 1309671042a4SSara Sharon cfg80211_gen_new_bssid(transmitter_bssid, 1310671042a4SSara Sharon elem->data[0], 1311671042a4SSara Sharon index[2], 1312671042a4SSara Sharon new_bssid); 1313671042a4SSara Sharon if (ether_addr_equal(new_bssid, bss_bssid)) { 13145023b14cSSara Sharon found = true; 1315671042a4SSara Sharon elems->bssid_index_len = index[1]; 1316671042a4SSara Sharon elems->bssid_index = (void *)&index[2]; 1317671042a4SSara Sharon break; 1318671042a4SSara Sharon } 1319671042a4SSara Sharon } 1320671042a4SSara Sharon } 13215023b14cSSara Sharon 13225023b14cSSara Sharon return found ? profile_len : 0; 1323671042a4SSara Sharon } 1324671042a4SSara Sharon 132578ac51f8SSara Sharon u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, 132678ac51f8SSara Sharon struct ieee802_11_elems *elems, 132778ac51f8SSara Sharon u64 filter, u32 crc, u8 *transmitter_bssid, 132878ac51f8SSara Sharon u8 *bss_bssid) 132978ac51f8SSara Sharon { 1330671042a4SSara Sharon const struct element *non_inherit = NULL; 13315023b14cSSara Sharon u8 *nontransmitted_profile; 13325023b14cSSara Sharon int nontransmitted_profile_len = 0; 1333671042a4SSara Sharon 133478ac51f8SSara Sharon memset(elems, 0, sizeof(*elems)); 133578ac51f8SSara Sharon elems->ie_start = start; 133678ac51f8SSara Sharon elems->total_len = len; 133778ac51f8SSara Sharon 13385023b14cSSara Sharon nontransmitted_profile = kmalloc(len, GFP_ATOMIC); 13395023b14cSSara Sharon if (nontransmitted_profile) { 13405023b14cSSara Sharon nontransmitted_profile_len = 13415023b14cSSara Sharon ieee802_11_find_bssid_profile(start, len, elems, 13425023b14cSSara Sharon transmitter_bssid, 13435023b14cSSara Sharon bss_bssid, 13445809a5d5SDan Carpenter nontransmitted_profile); 1345671042a4SSara Sharon non_inherit = 1346671042a4SSara Sharon cfg80211_find_ext_elem(WLAN_EID_EXT_NON_INHERITANCE, 13475023b14cSSara Sharon nontransmitted_profile, 13485023b14cSSara Sharon nontransmitted_profile_len); 13495023b14cSSara Sharon } 1350671042a4SSara Sharon 135178ac51f8SSara Sharon crc = _ieee802_11_parse_elems_crc(start, len, action, elems, filter, 1352671042a4SSara Sharon crc, non_inherit); 135378ac51f8SSara Sharon 135478ac51f8SSara Sharon /* Override with nontransmitted profile, if found */ 13555023b14cSSara Sharon if (nontransmitted_profile_len) 13565023b14cSSara Sharon _ieee802_11_parse_elems_crc(nontransmitted_profile, 13575023b14cSSara Sharon nontransmitted_profile_len, 1358671042a4SSara Sharon action, elems, 0, 0, NULL); 135978ac51f8SSara Sharon 136078ac51f8SSara Sharon if (elems->tim && !elems->parse_error) { 136178ac51f8SSara Sharon const struct ieee80211_tim_ie *tim_ie = elems->tim; 136278ac51f8SSara Sharon 136378ac51f8SSara Sharon elems->dtim_period = tim_ie->dtim_period; 136478ac51f8SSara Sharon elems->dtim_count = tim_ie->dtim_count; 136578ac51f8SSara Sharon } 136678ac51f8SSara Sharon 136778ac51f8SSara Sharon /* Override DTIM period and count if needed */ 136878ac51f8SSara Sharon if (elems->bssid_index && 136978ac51f8SSara Sharon elems->bssid_index_len >= 137078ac51f8SSara Sharon offsetofend(struct ieee80211_bssid_index, dtim_period)) 137178ac51f8SSara Sharon elems->dtim_period = elems->bssid_index->dtim_period; 137278ac51f8SSara Sharon 137378ac51f8SSara Sharon if (elems->bssid_index && 137478ac51f8SSara Sharon elems->bssid_index_len >= 137578ac51f8SSara Sharon offsetofend(struct ieee80211_bssid_index, dtim_count)) 137678ac51f8SSara Sharon elems->dtim_count = elems->bssid_index->dtim_count; 137778ac51f8SSara Sharon 13785023b14cSSara Sharon kfree(nontransmitted_profile); 13795023b14cSSara Sharon 138078ac51f8SSara Sharon return crc; 138178ac51f8SSara Sharon } 138278ac51f8SSara Sharon 1383e552af05SHaim Dreyfuss void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, 1384e552af05SHaim Dreyfuss struct ieee80211_tx_queue_params 1385e552af05SHaim Dreyfuss *qparam, int ac) 1386e552af05SHaim Dreyfuss { 1387e552af05SHaim Dreyfuss struct ieee80211_chanctx_conf *chanctx_conf; 1388e552af05SHaim Dreyfuss const struct ieee80211_reg_rule *rrule; 138938cb87eeSStanislaw Gruszka const struct ieee80211_wmm_ac *wmm_ac; 1390e552af05SHaim Dreyfuss u16 center_freq = 0; 1391e552af05SHaim Dreyfuss 1392e552af05SHaim Dreyfuss if (sdata->vif.type != NL80211_IFTYPE_AP && 1393e552af05SHaim Dreyfuss sdata->vif.type != NL80211_IFTYPE_STATION) 1394e552af05SHaim Dreyfuss return; 1395e552af05SHaim Dreyfuss 1396e552af05SHaim Dreyfuss rcu_read_lock(); 1397e552af05SHaim Dreyfuss chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 1398e552af05SHaim Dreyfuss if (chanctx_conf) 1399e552af05SHaim Dreyfuss center_freq = chanctx_conf->def.chan->center_freq; 1400e552af05SHaim Dreyfuss 1401e552af05SHaim Dreyfuss if (!center_freq) { 1402e552af05SHaim Dreyfuss rcu_read_unlock(); 1403e552af05SHaim Dreyfuss return; 1404e552af05SHaim Dreyfuss } 1405e552af05SHaim Dreyfuss 1406e552af05SHaim Dreyfuss rrule = freq_reg_info(sdata->wdev.wiphy, MHZ_TO_KHZ(center_freq)); 1407e552af05SHaim Dreyfuss 140838cb87eeSStanislaw Gruszka if (IS_ERR_OR_NULL(rrule) || !rrule->has_wmm) { 1409e552af05SHaim Dreyfuss rcu_read_unlock(); 1410e552af05SHaim Dreyfuss return; 1411e552af05SHaim Dreyfuss } 1412e552af05SHaim Dreyfuss 1413e552af05SHaim Dreyfuss if (sdata->vif.type == NL80211_IFTYPE_AP) 141438cb87eeSStanislaw Gruszka wmm_ac = &rrule->wmm_rule.ap[ac]; 1415e552af05SHaim Dreyfuss else 141638cb87eeSStanislaw Gruszka wmm_ac = &rrule->wmm_rule.client[ac]; 1417e552af05SHaim Dreyfuss qparam->cw_min = max_t(u16, qparam->cw_min, wmm_ac->cw_min); 1418e552af05SHaim Dreyfuss qparam->cw_max = max_t(u16, qparam->cw_max, wmm_ac->cw_max); 1419e552af05SHaim Dreyfuss qparam->aifs = max_t(u8, qparam->aifs, wmm_ac->aifsn); 1420abd76d25SDreyfuss, Haim qparam->txop = min_t(u16, qparam->txop, wmm_ac->cot / 32); 1421e552af05SHaim Dreyfuss rcu_read_unlock(); 1422e552af05SHaim Dreyfuss } 1423e552af05SHaim Dreyfuss 14243abead59SJohannes Berg void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, 1425cec66283SJohannes Berg bool bss_notify, bool enable_qos) 14265825fe10SJohannes Berg { 14275825fe10SJohannes Berg struct ieee80211_local *local = sdata->local; 14285825fe10SJohannes Berg struct ieee80211_tx_queue_params qparam; 142955de908aSJohannes Berg struct ieee80211_chanctx_conf *chanctx_conf; 143054bcbc69SJohannes Berg int ac; 1431cec66283SJohannes Berg bool use_11b; 1432239281f8SRostislav Lisovy bool is_ocb; /* Use another EDCA parameters if dot11OCBActivated=true */ 1433aa837e1dSJohannes Berg int aCWmin, aCWmax; 14345825fe10SJohannes Berg 14355825fe10SJohannes Berg if (!local->ops->conf_tx) 14365825fe10SJohannes Berg return; 14375825fe10SJohannes Berg 143854bcbc69SJohannes Berg if (local->hw.queues < IEEE80211_NUM_ACS) 143954bcbc69SJohannes Berg return; 144054bcbc69SJohannes Berg 14415825fe10SJohannes Berg memset(&qparam, 0, sizeof(qparam)); 14425825fe10SJohannes Berg 144355de908aSJohannes Berg rcu_read_lock(); 144455de908aSJohannes Berg chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 144555de908aSJohannes Berg use_11b = (chanctx_conf && 144657fbcce3SJohannes Berg chanctx_conf->def.chan->band == NL80211_BAND_2GHZ) && 1447aa837e1dSJohannes Berg !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE); 144855de908aSJohannes Berg rcu_read_unlock(); 14495825fe10SJohannes Berg 1450239281f8SRostislav Lisovy is_ocb = (sdata->vif.type == NL80211_IFTYPE_OCB); 1451239281f8SRostislav Lisovy 1452aa837e1dSJohannes Berg /* Set defaults according to 802.11-2007 Table 7-37 */ 1453aa837e1dSJohannes Berg aCWmax = 1023; 1454aa837e1dSJohannes Berg if (use_11b) 1455aa837e1dSJohannes Berg aCWmin = 31; 14565825fe10SJohannes Berg else 1457aa837e1dSJohannes Berg aCWmin = 15; 14585825fe10SJohannes Berg 14591f4ffde8SFred Zhou /* Confiure old 802.11b/g medium access rules. */ 14601f4ffde8SFred Zhou qparam.cw_max = aCWmax; 14611f4ffde8SFred Zhou qparam.cw_min = aCWmin; 14621f4ffde8SFred Zhou qparam.txop = 0; 14631f4ffde8SFred Zhou qparam.aifs = 2; 14641f4ffde8SFred Zhou 14651f4ffde8SFred Zhou for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 14661f4ffde8SFred Zhou /* Update if QoS is enabled. */ 1467a8ce8544SStanislaw Gruszka if (enable_qos) { 146854bcbc69SJohannes Berg switch (ac) { 14691d98fb12SJohannes Berg case IEEE80211_AC_BK: 14707ba10a8eSJohannes Berg qparam.cw_max = aCWmax; 14717ba10a8eSJohannes Berg qparam.cw_min = aCWmin; 14725825fe10SJohannes Berg qparam.txop = 0; 1473239281f8SRostislav Lisovy if (is_ocb) 1474239281f8SRostislav Lisovy qparam.aifs = 9; 1475239281f8SRostislav Lisovy else 1476aa837e1dSJohannes Berg qparam.aifs = 7; 1477aa837e1dSJohannes Berg break; 1478a8ce8544SStanislaw Gruszka /* never happens but let's not leave undefined */ 1479a8ce8544SStanislaw Gruszka default: 14801d98fb12SJohannes Berg case IEEE80211_AC_BE: 14817ba10a8eSJohannes Berg qparam.cw_max = aCWmax; 14827ba10a8eSJohannes Berg qparam.cw_min = aCWmin; 1483aa837e1dSJohannes Berg qparam.txop = 0; 1484239281f8SRostislav Lisovy if (is_ocb) 1485239281f8SRostislav Lisovy qparam.aifs = 6; 1486239281f8SRostislav Lisovy else 1487aa837e1dSJohannes Berg qparam.aifs = 3; 1488aa837e1dSJohannes Berg break; 14891d98fb12SJohannes Berg case IEEE80211_AC_VI: 1490aa837e1dSJohannes Berg qparam.cw_max = aCWmin; 1491aa837e1dSJohannes Berg qparam.cw_min = (aCWmin + 1) / 2 - 1; 1492239281f8SRostislav Lisovy if (is_ocb) 1493239281f8SRostislav Lisovy qparam.txop = 0; 1494239281f8SRostislav Lisovy else if (use_11b) 1495aa837e1dSJohannes Berg qparam.txop = 6016/32; 1496aa837e1dSJohannes Berg else 1497aa837e1dSJohannes Berg qparam.txop = 3008/32; 1498239281f8SRostislav Lisovy 1499239281f8SRostislav Lisovy if (is_ocb) 1500239281f8SRostislav Lisovy qparam.aifs = 3; 1501239281f8SRostislav Lisovy else 1502aa837e1dSJohannes Berg qparam.aifs = 2; 1503aa837e1dSJohannes Berg break; 15041d98fb12SJohannes Berg case IEEE80211_AC_VO: 1505aa837e1dSJohannes Berg qparam.cw_max = (aCWmin + 1) / 2 - 1; 1506aa837e1dSJohannes Berg qparam.cw_min = (aCWmin + 1) / 4 - 1; 1507239281f8SRostislav Lisovy if (is_ocb) 1508239281f8SRostislav Lisovy qparam.txop = 0; 1509239281f8SRostislav Lisovy else if (use_11b) 1510aa837e1dSJohannes Berg qparam.txop = 3264/32; 1511aa837e1dSJohannes Berg else 1512aa837e1dSJohannes Berg qparam.txop = 1504/32; 1513aa837e1dSJohannes Berg qparam.aifs = 2; 1514aa837e1dSJohannes Berg break; 1515aa837e1dSJohannes Berg } 1516a8ce8544SStanislaw Gruszka } 1517e552af05SHaim Dreyfuss ieee80211_regulatory_limit_wmm_params(sdata, &qparam, ac); 15185825fe10SJohannes Berg 1519ab13315aSKalle Valo qparam.uapsd = false; 1520ab13315aSKalle Valo 152154bcbc69SJohannes Berg sdata->tx_conf[ac] = qparam; 152254bcbc69SJohannes Berg drv_conf_tx(local, sdata, ac, &qparam); 1523aa837e1dSJohannes Berg } 1524e1b3ec1aSStanislaw Gruszka 1525f142c6b9SJohannes Berg if (sdata->vif.type != NL80211_IFTYPE_MONITOR && 1526708d50edSAyala Beker sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE && 1527708d50edSAyala Beker sdata->vif.type != NL80211_IFTYPE_NAN) { 1528a8ce8544SStanislaw Gruszka sdata->vif.bss_conf.qos = enable_qos; 15293abead59SJohannes Berg if (bss_notify) 15303abead59SJohannes Berg ieee80211_bss_info_change_notify(sdata, 15313abead59SJohannes Berg BSS_CHANGED_QOS); 15325825fe10SJohannes Berg } 1533d9734979SSujith } 1534e50db65cSJohannes Berg 153546900298SJohannes Berg void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, 1536700e8ea6SJouni Malinen u16 transaction, u16 auth_alg, u16 status, 15374a3cb702SJohannes Berg const u8 *extra, size_t extra_len, const u8 *da, 15381672c0e3SJohannes Berg const u8 *bssid, const u8 *key, u8 key_len, u8 key_idx, 15391672c0e3SJohannes Berg u32 tx_flags) 154046900298SJohannes Berg { 154146900298SJohannes Berg struct ieee80211_local *local = sdata->local; 154246900298SJohannes Berg struct sk_buff *skb; 154346900298SJohannes Berg struct ieee80211_mgmt *mgmt; 1544fffd0934SJohannes Berg int err; 154546900298SJohannes Berg 154615e230abSFred Zhou /* 24 + 6 = header + auth_algo + auth_transaction + status_code */ 1547744462a9SMax Stepanov skb = dev_alloc_skb(local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN + 1548744462a9SMax Stepanov 24 + 6 + extra_len + IEEE80211_WEP_ICV_LEN); 1549d15b8459SJoe Perches if (!skb) 155046900298SJohannes Berg return; 1551d15b8459SJoe Perches 1552744462a9SMax Stepanov skb_reserve(skb, local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN); 155346900298SJohannes Berg 1554b080db58SJohannes Berg mgmt = skb_put_zero(skb, 24 + 6); 155546900298SJohannes Berg mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 155646900298SJohannes Berg IEEE80211_STYPE_AUTH); 1557efa6a09dSAntonio Quartulli memcpy(mgmt->da, da, ETH_ALEN); 155847846c9bSJohannes Berg memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 155946900298SJohannes Berg memcpy(mgmt->bssid, bssid, ETH_ALEN); 156046900298SJohannes Berg mgmt->u.auth.auth_alg = cpu_to_le16(auth_alg); 156146900298SJohannes Berg mgmt->u.auth.auth_transaction = cpu_to_le16(transaction); 1562700e8ea6SJouni Malinen mgmt->u.auth.status_code = cpu_to_le16(status); 156346900298SJohannes Berg if (extra) 156459ae1d12SJohannes Berg skb_put_data(skb, extra, extra_len); 156546900298SJohannes Berg 1566fffd0934SJohannes Berg if (auth_alg == WLAN_AUTH_SHARED_KEY && transaction == 3) { 1567fffd0934SJohannes Berg mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); 1568fffd0934SJohannes Berg err = ieee80211_wep_encrypt(local, skb, key, key_len, key_idx); 1569fffd0934SJohannes Berg WARN_ON(err); 1570fffd0934SJohannes Berg } 1571fffd0934SJohannes Berg 15721672c0e3SJohannes Berg IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT | 15731672c0e3SJohannes Berg tx_flags; 157462ae67beSJohannes Berg ieee80211_tx_skb(sdata, skb); 157546900298SJohannes Berg } 157646900298SJohannes Berg 15776ae16775SAntonio Quartulli void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, 15786ae16775SAntonio Quartulli const u8 *bssid, u16 stype, u16 reason, 15796ae16775SAntonio Quartulli bool send_frame, u8 *frame_buf) 15806ae16775SAntonio Quartulli { 15816ae16775SAntonio Quartulli struct ieee80211_local *local = sdata->local; 15826ae16775SAntonio Quartulli struct sk_buff *skb; 15836ae16775SAntonio Quartulli struct ieee80211_mgmt *mgmt = (void *)frame_buf; 15846ae16775SAntonio Quartulli 15856ae16775SAntonio Quartulli /* build frame */ 15866ae16775SAntonio Quartulli mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype); 15876ae16775SAntonio Quartulli mgmt->duration = 0; /* initialize only */ 15886ae16775SAntonio Quartulli mgmt->seq_ctrl = 0; /* initialize only */ 15896ae16775SAntonio Quartulli memcpy(mgmt->da, bssid, ETH_ALEN); 15906ae16775SAntonio Quartulli memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 15916ae16775SAntonio Quartulli memcpy(mgmt->bssid, bssid, ETH_ALEN); 15926ae16775SAntonio Quartulli /* u.deauth.reason_code == u.disassoc.reason_code */ 15936ae16775SAntonio Quartulli mgmt->u.deauth.reason_code = cpu_to_le16(reason); 15946ae16775SAntonio Quartulli 15956ae16775SAntonio Quartulli if (send_frame) { 15966ae16775SAntonio Quartulli skb = dev_alloc_skb(local->hw.extra_tx_headroom + 15976ae16775SAntonio Quartulli IEEE80211_DEAUTH_FRAME_LEN); 15986ae16775SAntonio Quartulli if (!skb) 15996ae16775SAntonio Quartulli return; 16006ae16775SAntonio Quartulli 16016ae16775SAntonio Quartulli skb_reserve(skb, local->hw.extra_tx_headroom); 16026ae16775SAntonio Quartulli 16036ae16775SAntonio Quartulli /* copy in frame */ 160459ae1d12SJohannes Berg skb_put_data(skb, mgmt, IEEE80211_DEAUTH_FRAME_LEN); 16056ae16775SAntonio Quartulli 16066ae16775SAntonio Quartulli if (sdata->vif.type != NL80211_IFTYPE_STATION || 16076ae16775SAntonio Quartulli !(sdata->u.mgd.flags & IEEE80211_STA_MFP_ENABLED)) 16086ae16775SAntonio Quartulli IEEE80211_SKB_CB(skb)->flags |= 16096ae16775SAntonio Quartulli IEEE80211_TX_INTFL_DONT_ENCRYPT; 16106ae16775SAntonio Quartulli 16116ae16775SAntonio Quartulli ieee80211_tx_skb(sdata, skb); 16126ae16775SAntonio Quartulli } 16136ae16775SAntonio Quartulli } 16146ae16775SAntonio Quartulli 1615c56ef672SDavid Spinadel static int ieee80211_build_preq_ies_band(struct ieee80211_local *local, 1616c56ef672SDavid Spinadel u8 *buffer, size_t buffer_len, 1617c56ef672SDavid Spinadel const u8 *ie, size_t ie_len, 161857fbcce3SJohannes Berg enum nl80211_band band, 1619c56ef672SDavid Spinadel u32 rate_mask, 1620c56ef672SDavid Spinadel struct cfg80211_chan_def *chandef, 162100387f32SJohannes Berg size_t *offset, u32 flags) 1622de95a54bSJohannes Berg { 1623de95a54bSJohannes Berg struct ieee80211_supported_band *sband; 162441cbb0f5SLuca Coelho const struct ieee80211_sta_he_cap *he_cap; 1625c604b9f2SJohannes Berg u8 *pos = buffer, *end = buffer + buffer_len; 1626c56ef672SDavid Spinadel size_t noffset; 16278e664fb3SJohannes Berg int supp_rates_len, i; 16288dcb2003SJouni Malinen u8 rates[32]; 16298dcb2003SJouni Malinen int num_rates; 16308dcb2003SJouni Malinen int ext_rates_len; 16312103dec1SSimon Wunderlich int shift; 16322103dec1SSimon Wunderlich u32 rate_flags; 163340a11ca8SJohannes Berg bool have_80mhz = false; 1634de95a54bSJohannes Berg 1635c56ef672SDavid Spinadel *offset = 0; 1636c56ef672SDavid Spinadel 16374d36ec58SJohannes Berg sband = local->hw.wiphy->bands[band]; 1638d811b3d5SArik Nemtsov if (WARN_ON_ONCE(!sband)) 1639d811b3d5SArik Nemtsov return 0; 1640de95a54bSJohannes Berg 16412103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(chandef); 16422103dec1SSimon Wunderlich shift = ieee80211_chandef_get_shift(chandef); 16432103dec1SSimon Wunderlich 16448dcb2003SJouni Malinen num_rates = 0; 16458dcb2003SJouni Malinen for (i = 0; i < sband->n_bitrates; i++) { 16468dcb2003SJouni Malinen if ((BIT(i) & rate_mask) == 0) 16478dcb2003SJouni Malinen continue; /* skip rate */ 16482103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 16492103dec1SSimon Wunderlich continue; 16502103dec1SSimon Wunderlich 16512103dec1SSimon Wunderlich rates[num_rates++] = 16522103dec1SSimon Wunderlich (u8) DIV_ROUND_UP(sband->bitrates[i].bitrate, 16532103dec1SSimon Wunderlich (1 << shift) * 5); 16548dcb2003SJouni Malinen } 16558dcb2003SJouni Malinen 16568dcb2003SJouni Malinen supp_rates_len = min_t(int, num_rates, 8); 16578e664fb3SJohannes Berg 1658c604b9f2SJohannes Berg if (end - pos < 2 + supp_rates_len) 1659c604b9f2SJohannes Berg goto out_err; 1660de95a54bSJohannes Berg *pos++ = WLAN_EID_SUPP_RATES; 16618e664fb3SJohannes Berg *pos++ = supp_rates_len; 16628dcb2003SJouni Malinen memcpy(pos, rates, supp_rates_len); 16638dcb2003SJouni Malinen pos += supp_rates_len; 1664de95a54bSJohannes Berg 16658e664fb3SJohannes Berg /* insert "request information" if in custom IEs */ 16668e664fb3SJohannes Berg if (ie && ie_len) { 16678e664fb3SJohannes Berg static const u8 before_extrates[] = { 16688e664fb3SJohannes Berg WLAN_EID_SSID, 16698e664fb3SJohannes Berg WLAN_EID_SUPP_RATES, 16708e664fb3SJohannes Berg WLAN_EID_REQUEST, 16718e664fb3SJohannes Berg }; 16728e664fb3SJohannes Berg noffset = ieee80211_ie_split(ie, ie_len, 16738e664fb3SJohannes Berg before_extrates, 16748e664fb3SJohannes Berg ARRAY_SIZE(before_extrates), 1675c56ef672SDavid Spinadel *offset); 1676c56ef672SDavid Spinadel if (end - pos < noffset - *offset) 1677c604b9f2SJohannes Berg goto out_err; 1678c56ef672SDavid Spinadel memcpy(pos, ie + *offset, noffset - *offset); 1679c56ef672SDavid Spinadel pos += noffset - *offset; 1680c56ef672SDavid Spinadel *offset = noffset; 16818e664fb3SJohannes Berg } 16828e664fb3SJohannes Berg 16838dcb2003SJouni Malinen ext_rates_len = num_rates - supp_rates_len; 16848dcb2003SJouni Malinen if (ext_rates_len > 0) { 1685c604b9f2SJohannes Berg if (end - pos < 2 + ext_rates_len) 1686c604b9f2SJohannes Berg goto out_err; 1687de95a54bSJohannes Berg *pos++ = WLAN_EID_EXT_SUPP_RATES; 16888dcb2003SJouni Malinen *pos++ = ext_rates_len; 16898dcb2003SJouni Malinen memcpy(pos, rates + supp_rates_len, ext_rates_len); 16908dcb2003SJouni Malinen pos += ext_rates_len; 16918e664fb3SJohannes Berg } 16928e664fb3SJohannes Berg 169357fbcce3SJohannes Berg if (chandef->chan && sband->band == NL80211_BAND_2GHZ) { 1694c604b9f2SJohannes Berg if (end - pos < 3) 1695c604b9f2SJohannes Berg goto out_err; 1696651b5225SJouni Malinen *pos++ = WLAN_EID_DS_PARAMS; 1697651b5225SJouni Malinen *pos++ = 1; 16982103dec1SSimon Wunderlich *pos++ = ieee80211_frequency_to_channel( 16992103dec1SSimon Wunderlich chandef->chan->center_freq); 1700651b5225SJouni Malinen } 1701651b5225SJouni Malinen 1702b9771d41SJohannes Berg if (flags & IEEE80211_PROBE_FLAG_MIN_CONTENT) 1703b9771d41SJohannes Berg goto done; 1704b9771d41SJohannes Berg 17058e664fb3SJohannes Berg /* insert custom IEs that go before HT */ 17068e664fb3SJohannes Berg if (ie && ie_len) { 17078e664fb3SJohannes Berg static const u8 before_ht[] = { 1708a7f26d80SJohannes Berg /* 1709a7f26d80SJohannes Berg * no need to list the ones split off already 1710a7f26d80SJohannes Berg * (or generated here) 1711a7f26d80SJohannes Berg */ 17128e664fb3SJohannes Berg WLAN_EID_DS_PARAMS, 17138e664fb3SJohannes Berg WLAN_EID_SUPPORTED_REGULATORY_CLASSES, 17148e664fb3SJohannes Berg }; 17158e664fb3SJohannes Berg noffset = ieee80211_ie_split(ie, ie_len, 17168e664fb3SJohannes Berg before_ht, ARRAY_SIZE(before_ht), 1717c56ef672SDavid Spinadel *offset); 1718c56ef672SDavid Spinadel if (end - pos < noffset - *offset) 1719c604b9f2SJohannes Berg goto out_err; 1720c56ef672SDavid Spinadel memcpy(pos, ie + *offset, noffset - *offset); 1721c56ef672SDavid Spinadel pos += noffset - *offset; 1722c56ef672SDavid Spinadel *offset = noffset; 1723de95a54bSJohannes Berg } 1724de95a54bSJohannes Berg 1725c604b9f2SJohannes Berg if (sband->ht_cap.ht_supported) { 1726c604b9f2SJohannes Berg if (end - pos < 2 + sizeof(struct ieee80211_ht_cap)) 1727c604b9f2SJohannes Berg goto out_err; 1728ef96a842SBen Greear pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap, 1729ef96a842SBen Greear sband->ht_cap.cap); 1730c604b9f2SJohannes Berg } 17315ef2d41aSJohannes Berg 17324d952300SJohannes Berg /* insert custom IEs that go before VHT */ 17338e664fb3SJohannes Berg if (ie && ie_len) { 17344d952300SJohannes Berg static const u8 before_vht[] = { 1735a7f26d80SJohannes Berg /* 1736a7f26d80SJohannes Berg * no need to list the ones split off already 1737a7f26d80SJohannes Berg * (or generated here) 1738a7f26d80SJohannes Berg */ 17394d952300SJohannes Berg WLAN_EID_BSS_COEX_2040, 17404d952300SJohannes Berg WLAN_EID_EXT_CAPABILITY, 17414d952300SJohannes Berg WLAN_EID_SSID_LIST, 17424d952300SJohannes Berg WLAN_EID_CHANNEL_USAGE, 17434d952300SJohannes Berg WLAN_EID_INTERWORKING, 1744b44eebeaSLiad Kaufman WLAN_EID_MESH_ID, 1745a7f26d80SJohannes Berg /* 60 GHz (Multi-band, DMG, MMS) can't happen */ 17464d952300SJohannes Berg }; 17474d952300SJohannes Berg noffset = ieee80211_ie_split(ie, ie_len, 17484d952300SJohannes Berg before_vht, ARRAY_SIZE(before_vht), 1749c56ef672SDavid Spinadel *offset); 1750c56ef672SDavid Spinadel if (end - pos < noffset - *offset) 1751c604b9f2SJohannes Berg goto out_err; 1752c56ef672SDavid Spinadel memcpy(pos, ie + *offset, noffset - *offset); 1753c56ef672SDavid Spinadel pos += noffset - *offset; 1754c56ef672SDavid Spinadel *offset = noffset; 1755de95a54bSJohannes Berg } 1756de95a54bSJohannes Berg 175740a11ca8SJohannes Berg /* Check if any channel in this sband supports at least 80 MHz */ 175840a11ca8SJohannes Berg for (i = 0; i < sband->n_channels; i++) { 1759fa44b988SArik Nemtsov if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED | 1760fa44b988SArik Nemtsov IEEE80211_CHAN_NO_80MHZ)) 1761fa44b988SArik Nemtsov continue; 1762fa44b988SArik Nemtsov 176340a11ca8SJohannes Berg have_80mhz = true; 176440a11ca8SJohannes Berg break; 176540a11ca8SJohannes Berg } 176640a11ca8SJohannes Berg 176740a11ca8SJohannes Berg if (sband->vht_cap.vht_supported && have_80mhz) { 1768c604b9f2SJohannes Berg if (end - pos < 2 + sizeof(struct ieee80211_vht_cap)) 1769c604b9f2SJohannes Berg goto out_err; 1770ba0afa2fSMahesh Palivela pos = ieee80211_ie_build_vht_cap(pos, &sband->vht_cap, 1771ba0afa2fSMahesh Palivela sband->vht_cap.cap); 1772c604b9f2SJohannes Berg } 1773ba0afa2fSMahesh Palivela 177441cbb0f5SLuca Coelho /* insert custom IEs that go before HE */ 177541cbb0f5SLuca Coelho if (ie && ie_len) { 177641cbb0f5SLuca Coelho static const u8 before_he[] = { 177741cbb0f5SLuca Coelho /* 177841cbb0f5SLuca Coelho * no need to list the ones split off before VHT 177941cbb0f5SLuca Coelho * or generated here 178041cbb0f5SLuca Coelho */ 178141cbb0f5SLuca Coelho WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_REQ_PARAMS, 178241cbb0f5SLuca Coelho WLAN_EID_AP_CSN, 178341cbb0f5SLuca Coelho /* TODO: add 11ah/11aj/11ak elements */ 178441cbb0f5SLuca Coelho }; 178541cbb0f5SLuca Coelho noffset = ieee80211_ie_split(ie, ie_len, 178641cbb0f5SLuca Coelho before_he, ARRAY_SIZE(before_he), 178741cbb0f5SLuca Coelho *offset); 178841cbb0f5SLuca Coelho if (end - pos < noffset - *offset) 178941cbb0f5SLuca Coelho goto out_err; 179041cbb0f5SLuca Coelho memcpy(pos, ie + *offset, noffset - *offset); 179141cbb0f5SLuca Coelho pos += noffset - *offset; 179241cbb0f5SLuca Coelho *offset = noffset; 179341cbb0f5SLuca Coelho } 179441cbb0f5SLuca Coelho 179541cbb0f5SLuca Coelho he_cap = ieee80211_get_he_sta_cap(sband); 179641cbb0f5SLuca Coelho if (he_cap) { 179741cbb0f5SLuca Coelho pos = ieee80211_ie_build_he_cap(pos, he_cap, end); 179841cbb0f5SLuca Coelho if (!pos) 179941cbb0f5SLuca Coelho goto out_err; 180041cbb0f5SLuca Coelho } 180141cbb0f5SLuca Coelho 180241cbb0f5SLuca Coelho /* 180341cbb0f5SLuca Coelho * If adding more here, adjust code in main.c 180441cbb0f5SLuca Coelho * that calculates local->scan_ies_len. 180541cbb0f5SLuca Coelho */ 180641cbb0f5SLuca Coelho 1807de95a54bSJohannes Berg return pos - buffer; 1808c604b9f2SJohannes Berg out_err: 1809c604b9f2SJohannes Berg WARN_ONCE(1, "not enough space for preq IEs\n"); 1810b9771d41SJohannes Berg done: 1811c604b9f2SJohannes Berg return pos - buffer; 1812de95a54bSJohannes Berg } 1813de95a54bSJohannes Berg 1814c56ef672SDavid Spinadel int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, 1815c56ef672SDavid Spinadel size_t buffer_len, 1816c56ef672SDavid Spinadel struct ieee80211_scan_ies *ie_desc, 1817c56ef672SDavid Spinadel const u8 *ie, size_t ie_len, 1818c56ef672SDavid Spinadel u8 bands_used, u32 *rate_masks, 181900387f32SJohannes Berg struct cfg80211_chan_def *chandef, 182000387f32SJohannes Berg u32 flags) 1821c56ef672SDavid Spinadel { 1822c56ef672SDavid Spinadel size_t pos = 0, old_pos = 0, custom_ie_offset = 0; 1823c56ef672SDavid Spinadel int i; 1824c56ef672SDavid Spinadel 1825c56ef672SDavid Spinadel memset(ie_desc, 0, sizeof(*ie_desc)); 1826c56ef672SDavid Spinadel 182757fbcce3SJohannes Berg for (i = 0; i < NUM_NL80211_BANDS; i++) { 1828c56ef672SDavid Spinadel if (bands_used & BIT(i)) { 1829c56ef672SDavid Spinadel pos += ieee80211_build_preq_ies_band(local, 1830c56ef672SDavid Spinadel buffer + pos, 1831c56ef672SDavid Spinadel buffer_len - pos, 1832c56ef672SDavid Spinadel ie, ie_len, i, 1833c56ef672SDavid Spinadel rate_masks[i], 1834c56ef672SDavid Spinadel chandef, 183500387f32SJohannes Berg &custom_ie_offset, 183600387f32SJohannes Berg flags); 1837c56ef672SDavid Spinadel ie_desc->ies[i] = buffer + old_pos; 1838c56ef672SDavid Spinadel ie_desc->len[i] = pos - old_pos; 1839c56ef672SDavid Spinadel old_pos = pos; 1840c56ef672SDavid Spinadel } 1841c56ef672SDavid Spinadel } 1842c56ef672SDavid Spinadel 1843c56ef672SDavid Spinadel /* add any remaining custom IEs */ 1844c56ef672SDavid Spinadel if (ie && ie_len) { 1845c56ef672SDavid Spinadel if (WARN_ONCE(buffer_len - pos < ie_len - custom_ie_offset, 1846c56ef672SDavid Spinadel "not enough space for preq custom IEs\n")) 1847c56ef672SDavid Spinadel return pos; 1848c56ef672SDavid Spinadel memcpy(buffer + pos, ie + custom_ie_offset, 1849c56ef672SDavid Spinadel ie_len - custom_ie_offset); 1850c56ef672SDavid Spinadel ie_desc->common_ies = buffer + pos; 1851c56ef672SDavid Spinadel ie_desc->common_ie_len = ie_len - custom_ie_offset; 1852c56ef672SDavid Spinadel pos += ie_len - custom_ie_offset; 1853c56ef672SDavid Spinadel } 1854c56ef672SDavid Spinadel 1855c56ef672SDavid Spinadel return pos; 1856c56ef672SDavid Spinadel }; 1857c56ef672SDavid Spinadel 1858a619a4c0SJuuso Oikarinen struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, 1859a344d677SJohannes Berg const u8 *src, const u8 *dst, 1860a344d677SJohannes Berg u32 ratemask, 18616b77863bSJohannes Berg struct ieee80211_channel *chan, 1862de95a54bSJohannes Berg const u8 *ssid, size_t ssid_len, 1863a806c558SPaul Stewart const u8 *ie, size_t ie_len, 186400387f32SJohannes Berg u32 flags) 186546900298SJohannes Berg { 186646900298SJohannes Berg struct ieee80211_local *local = sdata->local; 18672103dec1SSimon Wunderlich struct cfg80211_chan_def chandef; 186846900298SJohannes Berg struct sk_buff *skb; 186946900298SJohannes Berg struct ieee80211_mgmt *mgmt; 1870b9a9ada1SJohannes Berg int ies_len; 187157fbcce3SJohannes Berg u32 rate_masks[NUM_NL80211_BANDS] = {}; 1872c56ef672SDavid Spinadel struct ieee80211_scan_ies dummy_ie_desc; 187346900298SJohannes Berg 1874a806c558SPaul Stewart /* 1875a806c558SPaul Stewart * Do not send DS Channel parameter for directed probe requests 1876a806c558SPaul Stewart * in order to maximize the chance that we get a response. Some 1877a806c558SPaul Stewart * badly-behaved APs don't respond when this parameter is included. 1878a806c558SPaul Stewart */ 18792103dec1SSimon Wunderlich chandef.width = sdata->vif.bss_conf.chandef.width; 188000387f32SJohannes Berg if (flags & IEEE80211_PROBE_FLAG_DIRECTED) 18812103dec1SSimon Wunderlich chandef.chan = NULL; 1882a806c558SPaul Stewart else 18832103dec1SSimon Wunderlich chandef.chan = chan; 1884651b5225SJouni Malinen 1885a344d677SJohannes Berg skb = ieee80211_probereq_get(&local->hw, src, ssid, ssid_len, 1886a344d677SJohannes Berg 100 + ie_len); 18875b2bbf75SJohannes Berg if (!skb) 1888b9a9ada1SJohannes Berg return NULL; 1889b9a9ada1SJohannes Berg 1890c56ef672SDavid Spinadel rate_masks[chan->band] = ratemask; 1891b9a9ada1SJohannes Berg ies_len = ieee80211_build_preq_ies(local, skb_tail_pointer(skb), 1892c56ef672SDavid Spinadel skb_tailroom(skb), &dummy_ie_desc, 1893c56ef672SDavid Spinadel ie, ie_len, BIT(chan->band), 189400387f32SJohannes Berg rate_masks, &chandef, flags); 1895b9a9ada1SJohannes Berg skb_put(skb, ies_len); 18967c12ce8bSKalle Valo 189746900298SJohannes Berg if (dst) { 18987c12ce8bSKalle Valo mgmt = (struct ieee80211_mgmt *) skb->data; 189946900298SJohannes Berg memcpy(mgmt->da, dst, ETH_ALEN); 190046900298SJohannes Berg memcpy(mgmt->bssid, dst, ETH_ALEN); 190146900298SJohannes Berg } 190246900298SJohannes Berg 190362ae67beSJohannes Berg IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; 19045b2bbf75SJohannes Berg 1905a619a4c0SJuuso Oikarinen return skb; 1906a619a4c0SJuuso Oikarinen } 1907a619a4c0SJuuso Oikarinen 19082103dec1SSimon Wunderlich u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, 190946900298SJohannes Berg struct ieee802_11_elems *elems, 191057fbcce3SJohannes Berg enum nl80211_band band, u32 *basic_rates) 191146900298SJohannes Berg { 191246900298SJohannes Berg struct ieee80211_supported_band *sband; 191346900298SJohannes Berg size_t num_rates; 19142103dec1SSimon Wunderlich u32 supp_rates, rate_flags; 19152103dec1SSimon Wunderlich int i, j, shift; 191621a8e9ddSMohammed Shafi Shajakhan 19172103dec1SSimon Wunderlich sband = sdata->local->hw.wiphy->bands[band]; 191821a8e9ddSMohammed Shafi Shajakhan if (WARN_ON(!sband)) 191921a8e9ddSMohammed Shafi Shajakhan return 1; 19202103dec1SSimon Wunderlich 19212103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); 19222103dec1SSimon Wunderlich shift = ieee80211_vif_get_shift(&sdata->vif); 192346900298SJohannes Berg 192446900298SJohannes Berg num_rates = sband->n_bitrates; 192546900298SJohannes Berg supp_rates = 0; 192646900298SJohannes Berg for (i = 0; i < elems->supp_rates_len + 192746900298SJohannes Berg elems->ext_supp_rates_len; i++) { 192846900298SJohannes Berg u8 rate = 0; 192946900298SJohannes Berg int own_rate; 19309ebb61a2SAshok Nagarajan bool is_basic; 193146900298SJohannes Berg if (i < elems->supp_rates_len) 193246900298SJohannes Berg rate = elems->supp_rates[i]; 193346900298SJohannes Berg else if (elems->ext_supp_rates) 193446900298SJohannes Berg rate = elems->ext_supp_rates 193546900298SJohannes Berg [i - elems->supp_rates_len]; 193646900298SJohannes Berg own_rate = 5 * (rate & 0x7f); 19379ebb61a2SAshok Nagarajan is_basic = !!(rate & 0x80); 19389ebb61a2SAshok Nagarajan 19399ebb61a2SAshok Nagarajan if (is_basic && (rate & 0x7f) == BSS_MEMBERSHIP_SELECTOR_HT_PHY) 19409ebb61a2SAshok Nagarajan continue; 19419ebb61a2SAshok Nagarajan 19429ebb61a2SAshok Nagarajan for (j = 0; j < num_rates; j++) { 19432103dec1SSimon Wunderlich int brate; 19442103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[j].flags) 19452103dec1SSimon Wunderlich != rate_flags) 19462103dec1SSimon Wunderlich continue; 19472103dec1SSimon Wunderlich 19482103dec1SSimon Wunderlich brate = DIV_ROUND_UP(sband->bitrates[j].bitrate, 19492103dec1SSimon Wunderlich 1 << shift); 19502103dec1SSimon Wunderlich 19512103dec1SSimon Wunderlich if (brate == own_rate) { 195246900298SJohannes Berg supp_rates |= BIT(j); 19539ebb61a2SAshok Nagarajan if (basic_rates && is_basic) 19549ebb61a2SAshok Nagarajan *basic_rates |= BIT(j); 19559ebb61a2SAshok Nagarajan } 19569ebb61a2SAshok Nagarajan } 195746900298SJohannes Berg } 195846900298SJohannes Berg return supp_rates; 195946900298SJohannes Berg } 1960f2753ddbSJohannes Berg 196184f6a01cSJohannes Berg void ieee80211_stop_device(struct ieee80211_local *local) 196284f6a01cSJohannes Berg { 196384f6a01cSJohannes Berg ieee80211_led_radio(local, false); 196467408c8cSJohannes Berg ieee80211_mod_tpt_led_trig(local, 0, IEEE80211_TPT_LEDTRIG_FL_RADIO); 196584f6a01cSJohannes Berg 196684f6a01cSJohannes Berg cancel_work_sync(&local->reconfig_filter); 196784f6a01cSJohannes Berg 196884f6a01cSJohannes Berg flush_workqueue(local->workqueue); 1969678f415fSLennert Buytenhek drv_stop(local); 197084f6a01cSJohannes Berg } 197184f6a01cSJohannes Berg 197274430f94SJohannes Berg static void ieee80211_flush_completed_scan(struct ieee80211_local *local, 197374430f94SJohannes Berg bool aborted) 197474430f94SJohannes Berg { 197574430f94SJohannes Berg /* It's possible that we don't handle the scan completion in 197674430f94SJohannes Berg * time during suspend, so if it's still marked as completed 197774430f94SJohannes Berg * here, queue the work and flush it to clean things up. 197874430f94SJohannes Berg * Instead of calling the worker function directly here, we 197974430f94SJohannes Berg * really queue it to avoid potential races with other flows 198074430f94SJohannes Berg * scheduling the same work. 198174430f94SJohannes Berg */ 198274430f94SJohannes Berg if (test_bit(SCAN_COMPLETED, &local->scanning)) { 198374430f94SJohannes Berg /* If coming from reconfiguration failure, abort the scan so 198474430f94SJohannes Berg * we don't attempt to continue a partial HW scan - which is 198574430f94SJohannes Berg * possible otherwise if (e.g.) the 2.4 GHz portion was the 198674430f94SJohannes Berg * completed scan, and a 5 GHz portion is still pending. 198774430f94SJohannes Berg */ 198874430f94SJohannes Berg if (aborted) 198974430f94SJohannes Berg set_bit(SCAN_ABORTED, &local->scanning); 199074430f94SJohannes Berg ieee80211_queue_delayed_work(&local->hw, &local->scan_work, 0); 199174430f94SJohannes Berg flush_delayed_work(&local->scan_work); 199274430f94SJohannes Berg } 199374430f94SJohannes Berg } 199474430f94SJohannes Berg 1995f6837ba8SJohannes Berg static void ieee80211_handle_reconfig_failure(struct ieee80211_local *local) 1996f6837ba8SJohannes Berg { 1997f6837ba8SJohannes Berg struct ieee80211_sub_if_data *sdata; 1998f6837ba8SJohannes Berg struct ieee80211_chanctx *ctx; 1999f6837ba8SJohannes Berg 2000f6837ba8SJohannes Berg /* 2001f6837ba8SJohannes Berg * We get here if during resume the device can't be restarted properly. 2002f6837ba8SJohannes Berg * We might also get here if this happens during HW reset, which is a 2003f6837ba8SJohannes Berg * slightly different situation and we need to drop all connections in 2004f6837ba8SJohannes Berg * the latter case. 2005f6837ba8SJohannes Berg * 2006f6837ba8SJohannes Berg * Ask cfg80211 to turn off all interfaces, this will result in more 2007f6837ba8SJohannes Berg * warnings but at least we'll then get into a clean stopped state. 2008f6837ba8SJohannes Berg */ 2009f6837ba8SJohannes Berg 2010f6837ba8SJohannes Berg local->resuming = false; 2011f6837ba8SJohannes Berg local->suspended = false; 20127584f88fSEliad Peller local->in_reconfig = false; 2013f6837ba8SJohannes Berg 201474430f94SJohannes Berg ieee80211_flush_completed_scan(local, true); 201574430f94SJohannes Berg 2016f6837ba8SJohannes Berg /* scheduled scan clearly can't be running any more, but tell 2017f6837ba8SJohannes Berg * cfg80211 and clear local state 2018f6837ba8SJohannes Berg */ 2019f6837ba8SJohannes Berg ieee80211_sched_scan_end(local); 2020f6837ba8SJohannes Berg 2021f6837ba8SJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) 2022f6837ba8SJohannes Berg sdata->flags &= ~IEEE80211_SDATA_IN_DRIVER; 2023f6837ba8SJohannes Berg 2024f6837ba8SJohannes Berg /* Mark channel contexts as not being in the driver any more to avoid 2025f6837ba8SJohannes Berg * removing them from the driver during the shutdown process... 2026f6837ba8SJohannes Berg */ 2027f6837ba8SJohannes Berg mutex_lock(&local->chanctx_mtx); 2028f6837ba8SJohannes Berg list_for_each_entry(ctx, &local->chanctx_list, list) 2029f6837ba8SJohannes Berg ctx->driver_present = false; 2030f6837ba8SJohannes Berg mutex_unlock(&local->chanctx_mtx); 2031f6837ba8SJohannes Berg 2032f6837ba8SJohannes Berg cfg80211_shutdown_all_interfaces(local->hw.wiphy); 2033f6837ba8SJohannes Berg } 2034f6837ba8SJohannes Berg 2035153a5fc4SStanislaw Gruszka static void ieee80211_assign_chanctx(struct ieee80211_local *local, 2036153a5fc4SStanislaw Gruszka struct ieee80211_sub_if_data *sdata) 2037153a5fc4SStanislaw Gruszka { 2038153a5fc4SStanislaw Gruszka struct ieee80211_chanctx_conf *conf; 2039153a5fc4SStanislaw Gruszka struct ieee80211_chanctx *ctx; 2040153a5fc4SStanislaw Gruszka 2041153a5fc4SStanislaw Gruszka if (!local->use_chanctx) 2042153a5fc4SStanislaw Gruszka return; 2043153a5fc4SStanislaw Gruszka 2044153a5fc4SStanislaw Gruszka mutex_lock(&local->chanctx_mtx); 2045153a5fc4SStanislaw Gruszka conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 2046153a5fc4SStanislaw Gruszka lockdep_is_held(&local->chanctx_mtx)); 2047153a5fc4SStanislaw Gruszka if (conf) { 2048153a5fc4SStanislaw Gruszka ctx = container_of(conf, struct ieee80211_chanctx, conf); 2049153a5fc4SStanislaw Gruszka drv_assign_vif_chanctx(local, sdata, ctx); 2050153a5fc4SStanislaw Gruszka } 2051153a5fc4SStanislaw Gruszka mutex_unlock(&local->chanctx_mtx); 2052153a5fc4SStanislaw Gruszka } 2053153a5fc4SStanislaw Gruszka 20541ea2c864SJohannes Berg static void ieee80211_reconfig_stations(struct ieee80211_sub_if_data *sdata) 20551ea2c864SJohannes Berg { 20561ea2c864SJohannes Berg struct ieee80211_local *local = sdata->local; 20571ea2c864SJohannes Berg struct sta_info *sta; 20581ea2c864SJohannes Berg 20591ea2c864SJohannes Berg /* add STAs back */ 20601ea2c864SJohannes Berg mutex_lock(&local->sta_mtx); 20611ea2c864SJohannes Berg list_for_each_entry(sta, &local->sta_list, list) { 20621ea2c864SJohannes Berg enum ieee80211_sta_state state; 20631ea2c864SJohannes Berg 20641ea2c864SJohannes Berg if (!sta->uploaded || sta->sdata != sdata) 20651ea2c864SJohannes Berg continue; 20661ea2c864SJohannes Berg 20671ea2c864SJohannes Berg for (state = IEEE80211_STA_NOTEXIST; 20681ea2c864SJohannes Berg state < sta->sta_state; state++) 20691ea2c864SJohannes Berg WARN_ON(drv_sta_state(local, sta->sdata, sta, state, 20701ea2c864SJohannes Berg state + 1)); 20711ea2c864SJohannes Berg } 20721ea2c864SJohannes Berg mutex_unlock(&local->sta_mtx); 20731ea2c864SJohannes Berg } 20741ea2c864SJohannes Berg 2075167e33f4SAyala Beker static int ieee80211_reconfig_nan(struct ieee80211_sub_if_data *sdata) 2076167e33f4SAyala Beker { 2077167e33f4SAyala Beker struct cfg80211_nan_func *func, **funcs; 2078167e33f4SAyala Beker int res, id, i = 0; 2079167e33f4SAyala Beker 2080167e33f4SAyala Beker res = drv_start_nan(sdata->local, sdata, 2081167e33f4SAyala Beker &sdata->u.nan.conf); 2082167e33f4SAyala Beker if (WARN_ON(res)) 2083167e33f4SAyala Beker return res; 2084167e33f4SAyala Beker 20856396bb22SKees Cook funcs = kcalloc(sdata->local->hw.max_nan_de_entries + 1, 20866396bb22SKees Cook sizeof(*funcs), 20876396bb22SKees Cook GFP_KERNEL); 2088167e33f4SAyala Beker if (!funcs) 2089167e33f4SAyala Beker return -ENOMEM; 2090167e33f4SAyala Beker 2091167e33f4SAyala Beker /* Add all the functions: 2092167e33f4SAyala Beker * This is a little bit ugly. We need to call a potentially sleeping 2093167e33f4SAyala Beker * callback for each NAN function, so we can't hold the spinlock. 2094167e33f4SAyala Beker */ 2095167e33f4SAyala Beker spin_lock_bh(&sdata->u.nan.func_lock); 2096167e33f4SAyala Beker 2097167e33f4SAyala Beker idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) 2098167e33f4SAyala Beker funcs[i++] = func; 2099167e33f4SAyala Beker 2100167e33f4SAyala Beker spin_unlock_bh(&sdata->u.nan.func_lock); 2101167e33f4SAyala Beker 2102167e33f4SAyala Beker for (i = 0; funcs[i]; i++) { 2103167e33f4SAyala Beker res = drv_add_nan_func(sdata->local, sdata, funcs[i]); 2104167e33f4SAyala Beker if (WARN_ON(res)) 2105167e33f4SAyala Beker ieee80211_nan_func_terminated(&sdata->vif, 2106167e33f4SAyala Beker funcs[i]->instance_id, 2107167e33f4SAyala Beker NL80211_NAN_FUNC_TERM_REASON_ERROR, 2108167e33f4SAyala Beker GFP_KERNEL); 2109167e33f4SAyala Beker } 2110167e33f4SAyala Beker 2111167e33f4SAyala Beker kfree(funcs); 2112167e33f4SAyala Beker 2113167e33f4SAyala Beker return 0; 2114167e33f4SAyala Beker } 2115167e33f4SAyala Beker 2116f2753ddbSJohannes Berg int ieee80211_reconfig(struct ieee80211_local *local) 2117f2753ddbSJohannes Berg { 2118f2753ddbSJohannes Berg struct ieee80211_hw *hw = &local->hw; 2119f2753ddbSJohannes Berg struct ieee80211_sub_if_data *sdata; 212055de908aSJohannes Berg struct ieee80211_chanctx *ctx; 2121f2753ddbSJohannes Berg struct sta_info *sta; 21222683d65bSEliad Peller int res, i; 2123d888130aSJohannes Berg bool reconfig_due_to_wowlan = false; 2124d43c6b6eSDavid Spinadel struct ieee80211_sub_if_data *sched_scan_sdata; 21256ea0a69cSJohannes Berg struct cfg80211_sched_scan_request *sched_scan_req; 2126d43c6b6eSDavid Spinadel bool sched_scan_stopped = false; 2127b0485e9fSEliad Peller bool suspended = local->suspended; 2128d888130aSJohannes Berg 21290f8b8245SEliad Peller /* nothing to do if HW shouldn't run */ 21300f8b8245SEliad Peller if (!local->open_count) 21310f8b8245SEliad Peller goto wake_up; 21320f8b8245SEliad Peller 21338f21b0adSJohannes Berg #ifdef CONFIG_PM 2134b0485e9fSEliad Peller if (suspended) 2135ceb99fe0SJohannes Berg local->resuming = true; 2136f2753ddbSJohannes Berg 2137eecc4800SJohannes Berg if (local->wowlan) { 2138b0485e9fSEliad Peller /* 2139b0485e9fSEliad Peller * In the wowlan case, both mac80211 and the device 2140b0485e9fSEliad Peller * are functional when the resume op is called, so 2141b0485e9fSEliad Peller * clear local->suspended so the device could operate 2142b0485e9fSEliad Peller * normally (e.g. pass rx frames). 2143b0485e9fSEliad Peller */ 2144b0485e9fSEliad Peller local->suspended = false; 2145eecc4800SJohannes Berg res = drv_resume(local); 214627b3eb9cSJohannes Berg local->wowlan = false; 2147eecc4800SJohannes Berg if (res < 0) { 2148eecc4800SJohannes Berg local->resuming = false; 2149eecc4800SJohannes Berg return res; 2150eecc4800SJohannes Berg } 2151eecc4800SJohannes Berg if (res == 0) 2152eecc4800SJohannes Berg goto wake_up; 2153eecc4800SJohannes Berg WARN_ON(res > 1); 2154eecc4800SJohannes Berg /* 2155eecc4800SJohannes Berg * res is 1, which means the driver requested 2156eecc4800SJohannes Berg * to go through a regular reset on wakeup. 2157b0485e9fSEliad Peller * restore local->suspended in this case. 2158eecc4800SJohannes Berg */ 2159d888130aSJohannes Berg reconfig_due_to_wowlan = true; 2160b0485e9fSEliad Peller local->suspended = true; 2161eecc4800SJohannes Berg } 2162eecc4800SJohannes Berg #endif 216394f9b97bSJohannes Berg 216424feda00SLuis R. Rodriguez /* 216543d6df00SEliad Peller * In case of hw_restart during suspend (without wowlan), 216643d6df00SEliad Peller * cancel restart work, as we are reconfiguring the device 216743d6df00SEliad Peller * anyway. 216843d6df00SEliad Peller * Note that restart_work is scheduled on a frozen workqueue, 216943d6df00SEliad Peller * so we can't deadlock in this case. 217043d6df00SEliad Peller */ 217143d6df00SEliad Peller if (suspended && local->in_reconfig && !reconfig_due_to_wowlan) 217243d6df00SEliad Peller cancel_work_sync(&local->restart_work); 217343d6df00SEliad Peller 2174968a76ceSEliad Peller local->started = false; 2175968a76ceSEliad Peller 217643d6df00SEliad Peller /* 217724feda00SLuis R. Rodriguez * Upon resume hardware can sometimes be goofy due to 217824feda00SLuis R. Rodriguez * various platform / driver / bus issues, so restarting 217924feda00SLuis R. Rodriguez * the device may at times not work immediately. Propagate 218024feda00SLuis R. Rodriguez * the error. 218124feda00SLuis R. Rodriguez */ 218224487981SJohannes Berg res = drv_start(local); 218324feda00SLuis R. Rodriguez if (res) { 2184b0485e9fSEliad Peller if (suspended) 2185f6837ba8SJohannes Berg WARN(1, "Hardware became unavailable upon resume. This could be a software issue prior to suspend or a hardware issue.\n"); 2186f6837ba8SJohannes Berg else 2187f6837ba8SJohannes Berg WARN(1, "Hardware became unavailable during restart.\n"); 2188f6837ba8SJohannes Berg ieee80211_handle_reconfig_failure(local); 218924feda00SLuis R. Rodriguez return res; 219024feda00SLuis R. Rodriguez } 2191f2753ddbSJohannes Berg 21927f281975SYogesh Ashok Powar /* setup fragmentation threshold */ 21937f281975SYogesh Ashok Powar drv_set_frag_threshold(local, hw->wiphy->frag_threshold); 21947f281975SYogesh Ashok Powar 21957f281975SYogesh Ashok Powar /* setup RTS threshold */ 21967f281975SYogesh Ashok Powar drv_set_rts_threshold(local, hw->wiphy->rts_threshold); 21977f281975SYogesh Ashok Powar 21987f281975SYogesh Ashok Powar /* reset coverage class */ 21997f281975SYogesh Ashok Powar drv_set_coverage_class(local, hw->wiphy->coverage_class); 22007f281975SYogesh Ashok Powar 22011f87f7d3SJohannes Berg ieee80211_led_radio(local, true); 220267408c8cSJohannes Berg ieee80211_mod_tpt_led_trig(local, 220367408c8cSJohannes Berg IEEE80211_TPT_LEDTRIG_FL_RADIO, 0); 2204f2753ddbSJohannes Berg 2205f2753ddbSJohannes Berg /* add interfaces */ 22064b6f1dd6SJohannes Berg sdata = rtnl_dereference(local->monitor_sdata); 22074b6f1dd6SJohannes Berg if (sdata) { 22083c3e21e7SJohannes Berg /* in HW restart it exists already */ 22093c3e21e7SJohannes Berg WARN_ON(local->resuming); 22104b6f1dd6SJohannes Berg res = drv_add_interface(local, sdata); 22114b6f1dd6SJohannes Berg if (WARN_ON(res)) { 22120c2bef46SMonam Agarwal RCU_INIT_POINTER(local->monitor_sdata, NULL); 22134b6f1dd6SJohannes Berg synchronize_net(); 22144b6f1dd6SJohannes Berg kfree(sdata); 22154b6f1dd6SJohannes Berg } 22164b6f1dd6SJohannes Berg } 22174b6f1dd6SJohannes Berg 2218f2753ddbSJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 2219f2753ddbSJohannes Berg if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2220f2753ddbSJohannes Berg sdata->vif.type != NL80211_IFTYPE_MONITOR && 2221c8fff3dcSLuciano Coelho ieee80211_sdata_running(sdata)) { 22227b7eab6fSJohannes Berg res = drv_add_interface(local, sdata); 2223c8fff3dcSLuciano Coelho if (WARN_ON(res)) 2224c8fff3dcSLuciano Coelho break; 2225c8fff3dcSLuciano Coelho } 2226c8fff3dcSLuciano Coelho } 2227c8fff3dcSLuciano Coelho 2228c8fff3dcSLuciano Coelho /* If adding any of the interfaces failed above, roll back and 2229c8fff3dcSLuciano Coelho * report failure. 2230c8fff3dcSLuciano Coelho */ 2231c8fff3dcSLuciano Coelho if (res) { 2232c8fff3dcSLuciano Coelho list_for_each_entry_continue_reverse(sdata, &local->interfaces, 2233c8fff3dcSLuciano Coelho list) 2234c8fff3dcSLuciano Coelho if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2235c8fff3dcSLuciano Coelho sdata->vif.type != NL80211_IFTYPE_MONITOR && 2236c8fff3dcSLuciano Coelho ieee80211_sdata_running(sdata)) 2237c8fff3dcSLuciano Coelho drv_remove_interface(local, sdata); 2238c8fff3dcSLuciano Coelho ieee80211_handle_reconfig_failure(local); 2239c8fff3dcSLuciano Coelho return res; 2240f2753ddbSJohannes Berg } 2241f2753ddbSJohannes Berg 224255de908aSJohannes Berg /* add channel contexts */ 2243f0dea9c7SArend van Spriel if (local->use_chanctx) { 224455de908aSJohannes Berg mutex_lock(&local->chanctx_mtx); 224555de908aSJohannes Berg list_for_each_entry(ctx, &local->chanctx_list, list) 22465bcae31dSMichal Kazior if (ctx->replace_state != 22475bcae31dSMichal Kazior IEEE80211_CHANCTX_REPLACES_OTHER) 224855de908aSJohannes Berg WARN_ON(drv_add_chanctx(local, ctx)); 224955de908aSJohannes Berg mutex_unlock(&local->chanctx_mtx); 225055de908aSJohannes Berg 2251fe5f2559SJohannes Berg sdata = rtnl_dereference(local->monitor_sdata); 2252153a5fc4SStanislaw Gruszka if (sdata && ieee80211_sdata_running(sdata)) 2253153a5fc4SStanislaw Gruszka ieee80211_assign_chanctx(local, sdata); 22547df180f7SZhao, Gang } 2255fe5f2559SJohannes Berg 2256f2753ddbSJohannes Berg /* reconfigure hardware */ 2257f2753ddbSJohannes Berg ieee80211_hw_config(local, ~0); 2258f2753ddbSJohannes Berg 2259f2753ddbSJohannes Berg ieee80211_configure_filter(local); 2260f2753ddbSJohannes Berg 2261f2753ddbSJohannes Berg /* Finally also reconfigure all the BSS information */ 2262f2753ddbSJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 2263ac8dd506SJohannes Berg u32 changed; 2264ac8dd506SJohannes Berg 22659607e6b6SJohannes Berg if (!ieee80211_sdata_running(sdata)) 2266f2753ddbSJohannes Berg continue; 2267ac8dd506SJohannes Berg 22681ea2c864SJohannes Berg ieee80211_assign_chanctx(local, sdata); 22691ea2c864SJohannes Berg 22701ea2c864SJohannes Berg switch (sdata->vif.type) { 22711ea2c864SJohannes Berg case NL80211_IFTYPE_AP_VLAN: 22721ea2c864SJohannes Berg case NL80211_IFTYPE_MONITOR: 22731ea2c864SJohannes Berg break; 22744926b51bSJohannes Berg case NL80211_IFTYPE_ADHOC: 22754926b51bSJohannes Berg if (sdata->vif.bss_conf.ibss_joined) 22764926b51bSJohannes Berg WARN_ON(drv_join_ibss(local, sdata)); 22774926b51bSJohannes Berg /* fall through */ 22781ea2c864SJohannes Berg default: 22791ea2c864SJohannes Berg ieee80211_reconfig_stations(sdata); 22801ea2c864SJohannes Berg /* fall through */ 22811ea2c864SJohannes Berg case NL80211_IFTYPE_AP: /* AP stations are handled later */ 22821ea2c864SJohannes Berg for (i = 0; i < IEEE80211_NUM_ACS; i++) 22831ea2c864SJohannes Berg drv_conf_tx(local, sdata, i, 22841ea2c864SJohannes Berg &sdata->tx_conf[i]); 22851ea2c864SJohannes Berg break; 22861ea2c864SJohannes Berg } 22871ea2c864SJohannes Berg 2288ac8dd506SJohannes Berg /* common change flags for all interface types */ 2289ac8dd506SJohannes Berg changed = BSS_CHANGED_ERP_CTS_PROT | 2290ac8dd506SJohannes Berg BSS_CHANGED_ERP_PREAMBLE | 2291ac8dd506SJohannes Berg BSS_CHANGED_ERP_SLOT | 2292ac8dd506SJohannes Berg BSS_CHANGED_HT | 2293ac8dd506SJohannes Berg BSS_CHANGED_BASIC_RATES | 2294ac8dd506SJohannes Berg BSS_CHANGED_BEACON_INT | 2295ac8dd506SJohannes Berg BSS_CHANGED_BSSID | 22964ced3f74SJohannes Berg BSS_CHANGED_CQM | 229755de47f6SEliad Peller BSS_CHANGED_QOS | 22981ea6f9c0SJohannes Berg BSS_CHANGED_IDLE | 2299dcbe73caSPradeep Kumar Chitrapu BSS_CHANGED_TXPOWER | 2300dcbe73caSPradeep Kumar Chitrapu BSS_CHANGED_MCAST_RATE; 2301ac8dd506SJohannes Berg 2302b5a33d52SSara Sharon if (sdata->vif.mu_mimo_owner) 230323a1f8d4SSara Sharon changed |= BSS_CHANGED_MU_GROUPS; 230423a1f8d4SSara Sharon 2305f2753ddbSJohannes Berg switch (sdata->vif.type) { 2306f2753ddbSJohannes Berg case NL80211_IFTYPE_STATION: 23070d392e93SEliad Peller changed |= BSS_CHANGED_ASSOC | 2308ab095877SEliad Peller BSS_CHANGED_ARP_FILTER | 2309ab095877SEliad Peller BSS_CHANGED_PS; 2310c65dd147SEmmanuel Grumbach 2311989c6505SAlexander Bondar /* Re-send beacon info report to the driver */ 2312989c6505SAlexander Bondar if (sdata->u.mgd.have_beacon) 2313989c6505SAlexander Bondar changed |= BSS_CHANGED_BEACON_INFO; 2314c65dd147SEmmanuel Grumbach 2315e38a017bSAvraham Stern if (sdata->vif.bss_conf.max_idle_period || 2316e38a017bSAvraham Stern sdata->vif.bss_conf.protected_keep_alive) 2317e38a017bSAvraham Stern changed |= BSS_CHANGED_KEEP_ALIVE; 2318e38a017bSAvraham Stern 23198d61ffa5SJohannes Berg sdata_lock(sdata); 2320ac8dd506SJohannes Berg ieee80211_bss_info_change_notify(sdata, changed); 23218d61ffa5SJohannes Berg sdata_unlock(sdata); 2322ac8dd506SJohannes Berg break; 23236e0bd6c3SRostislav Lisovy case NL80211_IFTYPE_OCB: 2324239281f8SRostislav Lisovy changed |= BSS_CHANGED_OCB; 2325239281f8SRostislav Lisovy ieee80211_bss_info_change_notify(sdata, changed); 23266e0bd6c3SRostislav Lisovy break; 2327f2753ddbSJohannes Berg case NL80211_IFTYPE_ADHOC: 2328ac8dd506SJohannes Berg changed |= BSS_CHANGED_IBSS; 2329ac8dd506SJohannes Berg /* fall through */ 2330f2753ddbSJohannes Berg case NL80211_IFTYPE_AP: 2331339afbf4SJohannes Berg changed |= BSS_CHANGED_SSID | BSS_CHANGED_P2P_PS; 2332e7979ac7SArik Nemtsov 2333bc847970SPradeep Kumar Chitrapu if (sdata->vif.bss_conf.ftm_responder == 1 && 2334bc847970SPradeep Kumar Chitrapu wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2335bc847970SPradeep Kumar Chitrapu NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER)) 2336bc847970SPradeep Kumar Chitrapu changed |= BSS_CHANGED_FTM_RESPONDER; 2337bc847970SPradeep Kumar Chitrapu 23381041638fSJohannes Berg if (sdata->vif.type == NL80211_IFTYPE_AP) { 2339e7979ac7SArik Nemtsov changed |= BSS_CHANGED_AP_PROBE_RESP; 2340e7979ac7SArik Nemtsov 23411041638fSJohannes Berg if (rcu_access_pointer(sdata->u.ap.beacon)) 23421041638fSJohannes Berg drv_start_ap(local, sdata); 23431041638fSJohannes Berg } 23441041638fSJohannes Berg 23457827493bSArik Nemtsov /* fall through */ 2346f2753ddbSJohannes Berg case NL80211_IFTYPE_MESH_POINT: 23478da34932SJohannes Berg if (sdata->vif.bss_conf.enable_beacon) { 2348ac8dd506SJohannes Berg changed |= BSS_CHANGED_BEACON | 2349ac8dd506SJohannes Berg BSS_CHANGED_BEACON_ENABLED; 23502d0ddec5SJohannes Berg ieee80211_bss_info_change_notify(sdata, changed); 23518da34932SJohannes Berg } 2352f2753ddbSJohannes Berg break; 2353167e33f4SAyala Beker case NL80211_IFTYPE_NAN: 2354167e33f4SAyala Beker res = ieee80211_reconfig_nan(sdata); 2355167e33f4SAyala Beker if (res < 0) { 2356167e33f4SAyala Beker ieee80211_handle_reconfig_failure(local); 2357167e33f4SAyala Beker return res; 2358167e33f4SAyala Beker } 2359167e33f4SAyala Beker break; 2360f2753ddbSJohannes Berg case NL80211_IFTYPE_WDS: 2361f2753ddbSJohannes Berg case NL80211_IFTYPE_AP_VLAN: 2362f2753ddbSJohannes Berg case NL80211_IFTYPE_MONITOR: 236398104fdeSJohannes Berg case NL80211_IFTYPE_P2P_DEVICE: 2364b205786eSZhao, Gang /* nothing to do */ 2365f142c6b9SJohannes Berg break; 2366f2753ddbSJohannes Berg case NL80211_IFTYPE_UNSPECIFIED: 23672e161f78SJohannes Berg case NUM_NL80211_IFTYPES: 23682ca27bcfSJohannes Berg case NL80211_IFTYPE_P2P_CLIENT: 23692ca27bcfSJohannes Berg case NL80211_IFTYPE_P2P_GO: 2370f2753ddbSJohannes Berg WARN_ON(1); 2371f2753ddbSJohannes Berg break; 2372f2753ddbSJohannes Berg } 2373f2753ddbSJohannes Berg } 2374f2753ddbSJohannes Berg 23754a733ef1SJohannes Berg ieee80211_recalc_ps(local); 23768e1b23b9SEyal Shapira 23772a419056SJohannes Berg /* 23786e1b1b24SEliad Peller * The sta might be in psm against the ap (e.g. because 23796e1b1b24SEliad Peller * this was the state before a hw restart), so we 23806e1b1b24SEliad Peller * explicitly send a null packet in order to make sure 23816e1b1b24SEliad Peller * it'll sync against the ap (and get out of psm). 23826e1b1b24SEliad Peller */ 23836e1b1b24SEliad Peller if (!(local->hw.conf.flags & IEEE80211_CONF_PS)) { 23846e1b1b24SEliad Peller list_for_each_entry(sdata, &local->interfaces, list) { 23856e1b1b24SEliad Peller if (sdata->vif.type != NL80211_IFTYPE_STATION) 23866e1b1b24SEliad Peller continue; 238720f544eeSJohannes Berg if (!sdata->u.mgd.associated) 238820f544eeSJohannes Berg continue; 23896e1b1b24SEliad Peller 2390076cdcb1SJohannes Berg ieee80211_send_nullfunc(local, sdata, false); 23916e1b1b24SEliad Peller } 23926e1b1b24SEliad Peller } 23936e1b1b24SEliad Peller 23942e8d397eSArik Nemtsov /* APs are now beaconing, add back stations */ 23952e8d397eSArik Nemtsov mutex_lock(&local->sta_mtx); 23962e8d397eSArik Nemtsov list_for_each_entry(sta, &local->sta_list, list) { 23972e8d397eSArik Nemtsov enum ieee80211_sta_state state; 23982e8d397eSArik Nemtsov 23992e8d397eSArik Nemtsov if (!sta->uploaded) 24002e8d397eSArik Nemtsov continue; 24012e8d397eSArik Nemtsov 240219103a4bSmpubbise@codeaurora.org if (sta->sdata->vif.type != NL80211_IFTYPE_AP && 240319103a4bSmpubbise@codeaurora.org sta->sdata->vif.type != NL80211_IFTYPE_AP_VLAN) 24042e8d397eSArik Nemtsov continue; 24052e8d397eSArik Nemtsov 24062e8d397eSArik Nemtsov for (state = IEEE80211_STA_NOTEXIST; 24072e8d397eSArik Nemtsov state < sta->sta_state; state++) 24082e8d397eSArik Nemtsov WARN_ON(drv_sta_state(local, sta->sdata, sta, state, 24092e8d397eSArik Nemtsov state + 1)); 24102e8d397eSArik Nemtsov } 24112e8d397eSArik Nemtsov mutex_unlock(&local->sta_mtx); 24122e8d397eSArik Nemtsov 24137b21aea0SEyal Shapira /* add back keys */ 24147b21aea0SEyal Shapira list_for_each_entry(sdata, &local->interfaces, list) 2415f9dca80bSMichal Kazior ieee80211_reset_crypto_tx_tailroom(sdata); 2416f9dca80bSMichal Kazior 2417f9dca80bSMichal Kazior list_for_each_entry(sdata, &local->interfaces, list) 24187b21aea0SEyal Shapira if (ieee80211_sdata_running(sdata)) 24197b21aea0SEyal Shapira ieee80211_enable_keys(sdata); 24207b21aea0SEyal Shapira 24210d440ea2SEliad Peller /* Reconfigure sched scan if it was interrupted by FW restart */ 24220d440ea2SEliad Peller mutex_lock(&local->mtx); 24230d440ea2SEliad Peller sched_scan_sdata = rcu_dereference_protected(local->sched_scan_sdata, 24240d440ea2SEliad Peller lockdep_is_held(&local->mtx)); 24250d440ea2SEliad Peller sched_scan_req = rcu_dereference_protected(local->sched_scan_req, 24260d440ea2SEliad Peller lockdep_is_held(&local->mtx)); 24270d440ea2SEliad Peller if (sched_scan_sdata && sched_scan_req) 24280d440ea2SEliad Peller /* 24290d440ea2SEliad Peller * Sched scan stopped, but we don't want to report it. Instead, 24300d440ea2SEliad Peller * we're trying to reschedule. However, if more than one scan 24310d440ea2SEliad Peller * plan was set, we cannot reschedule since we don't know which 24320d440ea2SEliad Peller * scan plan was currently running (and some scan plans may have 24330d440ea2SEliad Peller * already finished). 24340d440ea2SEliad Peller */ 24350d440ea2SEliad Peller if (sched_scan_req->n_scan_plans > 1 || 24360d440ea2SEliad Peller __ieee80211_request_sched_scan_start(sched_scan_sdata, 2437b9f628fcSEliad Peller sched_scan_req)) { 2438b9f628fcSEliad Peller RCU_INIT_POINTER(local->sched_scan_sdata, NULL); 2439b9f628fcSEliad Peller RCU_INIT_POINTER(local->sched_scan_req, NULL); 24400d440ea2SEliad Peller sched_scan_stopped = true; 2441b9f628fcSEliad Peller } 24420d440ea2SEliad Peller mutex_unlock(&local->mtx); 24430d440ea2SEliad Peller 24440d440ea2SEliad Peller if (sched_scan_stopped) 2445b34939b9SArend Van Spriel cfg80211_sched_scan_stopped_rtnl(local->hw.wiphy, 0); 24460d440ea2SEliad Peller 2447c6209488SEliad Peller wake_up: 2448470f4d61SEliad Peller 24493c3e21e7SJohannes Berg if (local->monitors == local->open_count && local->monitors > 0) 24503c3e21e7SJohannes Berg ieee80211_add_virtual_monitor(local); 24513c3e21e7SJohannes Berg 24526e1b1b24SEliad Peller /* 24532a419056SJohannes Berg * Clear the WLAN_STA_BLOCK_BA flag so new aggregation 24542a419056SJohannes Berg * sessions can be established after a resume. 24552a419056SJohannes Berg * 24562a419056SJohannes Berg * Also tear down aggregation sessions since reconfiguring 24572a419056SJohannes Berg * them in a hardware restart scenario is not easily done 24582a419056SJohannes Berg * right now, and the hardware will have lost information 24592a419056SJohannes Berg * about the sessions, but we and the AP still think they 24602a419056SJohannes Berg * are active. This is really a workaround though. 24612a419056SJohannes Berg */ 246230686bf7SJohannes Berg if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) { 24632a419056SJohannes Berg mutex_lock(&local->sta_mtx); 24642a419056SJohannes Berg 24652a419056SJohannes Berg list_for_each_entry(sta, &local->sta_list, list) { 246627392719SEliad Peller if (!local->resuming) 2467c82c4a80SJohannes Berg ieee80211_sta_tear_down_BA_sessions( 2468c82c4a80SJohannes Berg sta, AGG_STOP_LOCAL_REQUEST); 2469c2c98fdeSJohannes Berg clear_sta_flag(sta, WLAN_STA_BLOCK_BA); 247074e2bd1fSWey-Yi Guy } 24712a419056SJohannes Berg 24722a419056SJohannes Berg mutex_unlock(&local->sta_mtx); 247374e2bd1fSWey-Yi Guy } 247474e2bd1fSWey-Yi Guy 24752316380fSSara Sharon if (local->in_reconfig) { 24762316380fSSara Sharon local->in_reconfig = false; 24772316380fSSara Sharon barrier(); 24782316380fSSara Sharon 24792316380fSSara Sharon /* Restart deferred ROCs */ 24802316380fSSara Sharon mutex_lock(&local->mtx); 24812316380fSSara Sharon ieee80211_start_next_roc(local); 24822316380fSSara Sharon mutex_unlock(&local->mtx); 2483f8891461SNaftali Goldstein 2484f8891461SNaftali Goldstein /* Requeue all works */ 2485f8891461SNaftali Goldstein list_for_each_entry(sdata, &local->interfaces, list) 2486f8891461SNaftali Goldstein ieee80211_queue_work(&local->hw, &sdata->work); 24872316380fSSara Sharon } 24882316380fSSara Sharon 2489445ea4e8SJohannes Berg ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, 2490cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_SUSPEND, 2491cca07b00SLuciano Coelho false); 2492f2753ddbSJohannes Berg 24935bb644a0SJohannes Berg /* 24945bb644a0SJohannes Berg * If this is for hw restart things are still running. 24955bb644a0SJohannes Berg * We may want to change that later, however. 24965bb644a0SJohannes Berg */ 2497b0485e9fSEliad Peller if (local->open_count && (!suspended || reconfig_due_to_wowlan)) 2498cf2c92d8SEliad Peller drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_RESTART); 24998f21b0adSJohannes Berg 2500b0485e9fSEliad Peller if (!suspended) 25015bb644a0SJohannes Berg return 0; 25025bb644a0SJohannes Berg 25035bb644a0SJohannes Berg #ifdef CONFIG_PM 2504ceb99fe0SJohannes Berg /* first set suspended false, then resuming */ 25055bb644a0SJohannes Berg local->suspended = false; 2506ceb99fe0SJohannes Berg mb(); 2507ceb99fe0SJohannes Berg local->resuming = false; 25085bb644a0SJohannes Berg 250974430f94SJohannes Berg ieee80211_flush_completed_scan(local, false); 25109120d94eSLuciano Coelho 25110f8b8245SEliad Peller if (local->open_count && !reconfig_due_to_wowlan) 2512cf2c92d8SEliad Peller drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_SUSPEND); 2513cf2c92d8SEliad Peller 2514b8360ab8SJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 2515b8360ab8SJohannes Berg if (!ieee80211_sdata_running(sdata)) 2516b8360ab8SJohannes Berg continue; 2517b8360ab8SJohannes Berg if (sdata->vif.type == NL80211_IFTYPE_STATION) 2518b8360ab8SJohannes Berg ieee80211_sta_restart(sdata); 2519b8360ab8SJohannes Berg } 2520b8360ab8SJohannes Berg 252126d59535SJohannes Berg mod_timer(&local->sta_cleanup, jiffies + 1); 25225bb644a0SJohannes Berg #else 25235bb644a0SJohannes Berg WARN_ON(1); 25245bb644a0SJohannes Berg #endif 2525d43c6b6eSDavid Spinadel 2526f2753ddbSJohannes Berg return 0; 2527f2753ddbSJohannes Berg } 252842935ecaSLuis R. Rodriguez 252995acac61SJohannes Berg void ieee80211_resume_disconnect(struct ieee80211_vif *vif) 253095acac61SJohannes Berg { 253195acac61SJohannes Berg struct ieee80211_sub_if_data *sdata; 253295acac61SJohannes Berg struct ieee80211_local *local; 253395acac61SJohannes Berg struct ieee80211_key *key; 253495acac61SJohannes Berg 253595acac61SJohannes Berg if (WARN_ON(!vif)) 253695acac61SJohannes Berg return; 253795acac61SJohannes Berg 253895acac61SJohannes Berg sdata = vif_to_sdata(vif); 253995acac61SJohannes Berg local = sdata->local; 254095acac61SJohannes Berg 254195acac61SJohannes Berg if (WARN_ON(!local->resuming)) 254295acac61SJohannes Berg return; 254395acac61SJohannes Berg 254495acac61SJohannes Berg if (WARN_ON(vif->type != NL80211_IFTYPE_STATION)) 254595acac61SJohannes Berg return; 254695acac61SJohannes Berg 254795acac61SJohannes Berg sdata->flags |= IEEE80211_SDATA_DISCONNECT_RESUME; 254895acac61SJohannes Berg 254995acac61SJohannes Berg mutex_lock(&local->key_mtx); 255095acac61SJohannes Berg list_for_each_entry(key, &sdata->key_list, list) 255195acac61SJohannes Berg key->flags |= KEY_FLAG_TAINTED; 255295acac61SJohannes Berg mutex_unlock(&local->key_mtx); 255395acac61SJohannes Berg } 255495acac61SJohannes Berg EXPORT_SYMBOL_GPL(ieee80211_resume_disconnect); 255595acac61SJohannes Berg 255604ecd257SJohannes Berg void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata) 25570f78231bSJohannes Berg { 255804ecd257SJohannes Berg struct ieee80211_local *local = sdata->local; 255904ecd257SJohannes Berg struct ieee80211_chanctx_conf *chanctx_conf; 256004ecd257SJohannes Berg struct ieee80211_chanctx *chanctx; 25610f78231bSJohannes Berg 256204ecd257SJohannes Berg mutex_lock(&local->chanctx_mtx); 25630f78231bSJohannes Berg 256404ecd257SJohannes Berg chanctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 256504ecd257SJohannes Berg lockdep_is_held(&local->chanctx_mtx)); 25660f78231bSJohannes Berg 2567c189a685SAndrei Otcheretianski /* 2568c189a685SAndrei Otcheretianski * This function can be called from a work, thus it may be possible 2569c189a685SAndrei Otcheretianski * that the chanctx_conf is removed (due to a disconnection, for 2570c189a685SAndrei Otcheretianski * example). 2571c189a685SAndrei Otcheretianski * So nothing should be done in such case. 2572c189a685SAndrei Otcheretianski */ 2573c189a685SAndrei Otcheretianski if (!chanctx_conf) 25745d8e4237SJohannes Berg goto unlock; 25750f78231bSJohannes Berg 257604ecd257SJohannes Berg chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); 257704ecd257SJohannes Berg ieee80211_recalc_smps_chanctx(local, chanctx); 25785d8e4237SJohannes Berg unlock: 257904ecd257SJohannes Berg mutex_unlock(&local->chanctx_mtx); 25800f78231bSJohannes Berg } 25818e664fb3SJohannes Berg 258221f659bfSEliad Peller void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata) 258321f659bfSEliad Peller { 258421f659bfSEliad Peller struct ieee80211_local *local = sdata->local; 258521f659bfSEliad Peller struct ieee80211_chanctx_conf *chanctx_conf; 258621f659bfSEliad Peller struct ieee80211_chanctx *chanctx; 258721f659bfSEliad Peller 258821f659bfSEliad Peller mutex_lock(&local->chanctx_mtx); 258921f659bfSEliad Peller 259021f659bfSEliad Peller chanctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 259121f659bfSEliad Peller lockdep_is_held(&local->chanctx_mtx)); 259221f659bfSEliad Peller 259321f659bfSEliad Peller if (WARN_ON_ONCE(!chanctx_conf)) 259421f659bfSEliad Peller goto unlock; 259521f659bfSEliad Peller 259621f659bfSEliad Peller chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); 259721f659bfSEliad Peller ieee80211_recalc_chanctx_min_def(local, chanctx); 259821f659bfSEliad Peller unlock: 259921f659bfSEliad Peller mutex_unlock(&local->chanctx_mtx); 260021f659bfSEliad Peller } 260121f659bfSEliad Peller 26028e664fb3SJohannes Berg size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset) 26038e664fb3SJohannes Berg { 26048e664fb3SJohannes Berg size_t pos = offset; 26058e664fb3SJohannes Berg 26068e664fb3SJohannes Berg while (pos < ielen && ies[pos] != WLAN_EID_VENDOR_SPECIFIC) 26078e664fb3SJohannes Berg pos += 2 + ies[pos + 1]; 26088e664fb3SJohannes Berg 26098e664fb3SJohannes Berg return pos; 26108e664fb3SJohannes Berg } 2611615f7b9bSMeenakshi Venkataraman 2612615f7b9bSMeenakshi Venkataraman static void _ieee80211_enable_rssi_reports(struct ieee80211_sub_if_data *sdata, 2613615f7b9bSMeenakshi Venkataraman int rssi_min_thold, 2614615f7b9bSMeenakshi Venkataraman int rssi_max_thold) 2615615f7b9bSMeenakshi Venkataraman { 2616615f7b9bSMeenakshi Venkataraman trace_api_enable_rssi_reports(sdata, rssi_min_thold, rssi_max_thold); 2617615f7b9bSMeenakshi Venkataraman 2618615f7b9bSMeenakshi Venkataraman if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) 2619615f7b9bSMeenakshi Venkataraman return; 2620615f7b9bSMeenakshi Venkataraman 2621615f7b9bSMeenakshi Venkataraman /* 2622615f7b9bSMeenakshi Venkataraman * Scale up threshold values before storing it, as the RSSI averaging 2623615f7b9bSMeenakshi Venkataraman * algorithm uses a scaled up value as well. Change this scaling 2624615f7b9bSMeenakshi Venkataraman * factor if the RSSI averaging algorithm changes. 2625615f7b9bSMeenakshi Venkataraman */ 2626615f7b9bSMeenakshi Venkataraman sdata->u.mgd.rssi_min_thold = rssi_min_thold*16; 2627615f7b9bSMeenakshi Venkataraman sdata->u.mgd.rssi_max_thold = rssi_max_thold*16; 2628615f7b9bSMeenakshi Venkataraman } 2629615f7b9bSMeenakshi Venkataraman 2630615f7b9bSMeenakshi Venkataraman void ieee80211_enable_rssi_reports(struct ieee80211_vif *vif, 2631615f7b9bSMeenakshi Venkataraman int rssi_min_thold, 2632615f7b9bSMeenakshi Venkataraman int rssi_max_thold) 2633615f7b9bSMeenakshi Venkataraman { 2634615f7b9bSMeenakshi Venkataraman struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2635615f7b9bSMeenakshi Venkataraman 2636615f7b9bSMeenakshi Venkataraman WARN_ON(rssi_min_thold == rssi_max_thold || 2637615f7b9bSMeenakshi Venkataraman rssi_min_thold > rssi_max_thold); 2638615f7b9bSMeenakshi Venkataraman 2639615f7b9bSMeenakshi Venkataraman _ieee80211_enable_rssi_reports(sdata, rssi_min_thold, 2640615f7b9bSMeenakshi Venkataraman rssi_max_thold); 2641615f7b9bSMeenakshi Venkataraman } 2642615f7b9bSMeenakshi Venkataraman EXPORT_SYMBOL(ieee80211_enable_rssi_reports); 2643615f7b9bSMeenakshi Venkataraman 2644615f7b9bSMeenakshi Venkataraman void ieee80211_disable_rssi_reports(struct ieee80211_vif *vif) 2645615f7b9bSMeenakshi Venkataraman { 2646615f7b9bSMeenakshi Venkataraman struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2647615f7b9bSMeenakshi Venkataraman 2648615f7b9bSMeenakshi Venkataraman _ieee80211_enable_rssi_reports(sdata, 0, 0); 2649615f7b9bSMeenakshi Venkataraman } 2650615f7b9bSMeenakshi Venkataraman EXPORT_SYMBOL(ieee80211_disable_rssi_reports); 2651768db343SArik Nemtsov 2652ef96a842SBen Greear u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 265342e7aa77SAlexander Simon u16 cap) 265442e7aa77SAlexander Simon { 265542e7aa77SAlexander Simon __le16 tmp; 265642e7aa77SAlexander Simon 265742e7aa77SAlexander Simon *pos++ = WLAN_EID_HT_CAPABILITY; 265842e7aa77SAlexander Simon *pos++ = sizeof(struct ieee80211_ht_cap); 265942e7aa77SAlexander Simon memset(pos, 0, sizeof(struct ieee80211_ht_cap)); 266042e7aa77SAlexander Simon 266142e7aa77SAlexander Simon /* capability flags */ 266242e7aa77SAlexander Simon tmp = cpu_to_le16(cap); 266342e7aa77SAlexander Simon memcpy(pos, &tmp, sizeof(u16)); 266442e7aa77SAlexander Simon pos += sizeof(u16); 266542e7aa77SAlexander Simon 266642e7aa77SAlexander Simon /* AMPDU parameters */ 2667ef96a842SBen Greear *pos++ = ht_cap->ampdu_factor | 2668ef96a842SBen Greear (ht_cap->ampdu_density << 266942e7aa77SAlexander Simon IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT); 267042e7aa77SAlexander Simon 267142e7aa77SAlexander Simon /* MCS set */ 2672ef96a842SBen Greear memcpy(pos, &ht_cap->mcs, sizeof(ht_cap->mcs)); 2673ef96a842SBen Greear pos += sizeof(ht_cap->mcs); 267442e7aa77SAlexander Simon 267542e7aa77SAlexander Simon /* extended capabilities */ 267642e7aa77SAlexander Simon pos += sizeof(__le16); 267742e7aa77SAlexander Simon 267842e7aa77SAlexander Simon /* BF capabilities */ 267942e7aa77SAlexander Simon pos += sizeof(__le32); 268042e7aa77SAlexander Simon 268142e7aa77SAlexander Simon /* antenna selection */ 268242e7aa77SAlexander Simon pos += sizeof(u8); 268342e7aa77SAlexander Simon 268442e7aa77SAlexander Simon return pos; 268542e7aa77SAlexander Simon } 268642e7aa77SAlexander Simon 2687ba0afa2fSMahesh Palivela u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2688ba0afa2fSMahesh Palivela u32 cap) 2689ba0afa2fSMahesh Palivela { 2690ba0afa2fSMahesh Palivela __le32 tmp; 2691ba0afa2fSMahesh Palivela 2692ba0afa2fSMahesh Palivela *pos++ = WLAN_EID_VHT_CAPABILITY; 2693d4950281SMahesh Palivela *pos++ = sizeof(struct ieee80211_vht_cap); 2694d4950281SMahesh Palivela memset(pos, 0, sizeof(struct ieee80211_vht_cap)); 2695ba0afa2fSMahesh Palivela 2696ba0afa2fSMahesh Palivela /* capability flags */ 2697ba0afa2fSMahesh Palivela tmp = cpu_to_le32(cap); 2698ba0afa2fSMahesh Palivela memcpy(pos, &tmp, sizeof(u32)); 2699ba0afa2fSMahesh Palivela pos += sizeof(u32); 2700ba0afa2fSMahesh Palivela 2701ba0afa2fSMahesh Palivela /* VHT MCS set */ 2702ba0afa2fSMahesh Palivela memcpy(pos, &vht_cap->vht_mcs, sizeof(vht_cap->vht_mcs)); 2703ba0afa2fSMahesh Palivela pos += sizeof(vht_cap->vht_mcs); 2704ba0afa2fSMahesh Palivela 2705ba0afa2fSMahesh Palivela return pos; 2706ba0afa2fSMahesh Palivela } 2707ba0afa2fSMahesh Palivela 270841cbb0f5SLuca Coelho u8 *ieee80211_ie_build_he_cap(u8 *pos, 270941cbb0f5SLuca Coelho const struct ieee80211_sta_he_cap *he_cap, 271041cbb0f5SLuca Coelho u8 *end) 271141cbb0f5SLuca Coelho { 271241cbb0f5SLuca Coelho u8 n; 271341cbb0f5SLuca Coelho u8 ie_len; 271441cbb0f5SLuca Coelho u8 *orig_pos = pos; 271541cbb0f5SLuca Coelho 271641cbb0f5SLuca Coelho /* Make sure we have place for the IE */ 271741cbb0f5SLuca Coelho /* 271841cbb0f5SLuca Coelho * TODO: the 1 added is because this temporarily is under the EXTENSION 271941cbb0f5SLuca Coelho * IE. Get rid of it when it moves. 272041cbb0f5SLuca Coelho */ 272141cbb0f5SLuca Coelho if (!he_cap) 272241cbb0f5SLuca Coelho return orig_pos; 272341cbb0f5SLuca Coelho 272441cbb0f5SLuca Coelho n = ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem); 272541cbb0f5SLuca Coelho ie_len = 2 + 1 + 272641cbb0f5SLuca Coelho sizeof(he_cap->he_cap_elem) + n + 272741cbb0f5SLuca Coelho ieee80211_he_ppe_size(he_cap->ppe_thres[0], 272841cbb0f5SLuca Coelho he_cap->he_cap_elem.phy_cap_info); 272941cbb0f5SLuca Coelho 273041cbb0f5SLuca Coelho if ((end - pos) < ie_len) 273141cbb0f5SLuca Coelho return orig_pos; 273241cbb0f5SLuca Coelho 273341cbb0f5SLuca Coelho *pos++ = WLAN_EID_EXTENSION; 273441cbb0f5SLuca Coelho pos++; /* We'll set the size later below */ 273541cbb0f5SLuca Coelho *pos++ = WLAN_EID_EXT_HE_CAPABILITY; 273641cbb0f5SLuca Coelho 273741cbb0f5SLuca Coelho /* Fixed data */ 273841cbb0f5SLuca Coelho memcpy(pos, &he_cap->he_cap_elem, sizeof(he_cap->he_cap_elem)); 273941cbb0f5SLuca Coelho pos += sizeof(he_cap->he_cap_elem); 274041cbb0f5SLuca Coelho 274141cbb0f5SLuca Coelho memcpy(pos, &he_cap->he_mcs_nss_supp, n); 274241cbb0f5SLuca Coelho pos += n; 274341cbb0f5SLuca Coelho 274441cbb0f5SLuca Coelho /* Check if PPE Threshold should be present */ 274541cbb0f5SLuca Coelho if ((he_cap->he_cap_elem.phy_cap_info[6] & 274641cbb0f5SLuca Coelho IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0) 274741cbb0f5SLuca Coelho goto end; 274841cbb0f5SLuca Coelho 274941cbb0f5SLuca Coelho /* 275041cbb0f5SLuca Coelho * Calculate how many PPET16/PPET8 pairs are to come. Algorithm: 275141cbb0f5SLuca Coelho * (NSS_M1 + 1) x (num of 1 bits in RU_INDEX_BITMASK) 275241cbb0f5SLuca Coelho */ 275341cbb0f5SLuca Coelho n = hweight8(he_cap->ppe_thres[0] & 275441cbb0f5SLuca Coelho IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 275541cbb0f5SLuca Coelho n *= (1 + ((he_cap->ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) >> 275641cbb0f5SLuca Coelho IEEE80211_PPE_THRES_NSS_POS)); 275741cbb0f5SLuca Coelho 275841cbb0f5SLuca Coelho /* 275941cbb0f5SLuca Coelho * Each pair is 6 bits, and we need to add the 7 "header" bits to the 276041cbb0f5SLuca Coelho * total size. 276141cbb0f5SLuca Coelho */ 276241cbb0f5SLuca Coelho n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7; 276341cbb0f5SLuca Coelho n = DIV_ROUND_UP(n, 8); 276441cbb0f5SLuca Coelho 276541cbb0f5SLuca Coelho /* Copy PPE Thresholds */ 276641cbb0f5SLuca Coelho memcpy(pos, &he_cap->ppe_thres, n); 276741cbb0f5SLuca Coelho pos += n; 276841cbb0f5SLuca Coelho 276941cbb0f5SLuca Coelho end: 277041cbb0f5SLuca Coelho orig_pos[1] = (pos - orig_pos) - 2; 277141cbb0f5SLuca Coelho return pos; 277241cbb0f5SLuca Coelho } 277341cbb0f5SLuca Coelho 2774074d46d1SJohannes Berg u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 27754bf88530SJohannes Berg const struct cfg80211_chan_def *chandef, 277657f255f5SArik Nemtsov u16 prot_mode, bool rifs_mode) 277742e7aa77SAlexander Simon { 2778074d46d1SJohannes Berg struct ieee80211_ht_operation *ht_oper; 277942e7aa77SAlexander Simon /* Build HT Information */ 2780074d46d1SJohannes Berg *pos++ = WLAN_EID_HT_OPERATION; 2781074d46d1SJohannes Berg *pos++ = sizeof(struct ieee80211_ht_operation); 2782074d46d1SJohannes Berg ht_oper = (struct ieee80211_ht_operation *)pos; 27834bf88530SJohannes Berg ht_oper->primary_chan = ieee80211_frequency_to_channel( 27844bf88530SJohannes Berg chandef->chan->center_freq); 27854bf88530SJohannes Berg switch (chandef->width) { 27864bf88530SJohannes Berg case NL80211_CHAN_WIDTH_160: 27874bf88530SJohannes Berg case NL80211_CHAN_WIDTH_80P80: 27884bf88530SJohannes Berg case NL80211_CHAN_WIDTH_80: 27894bf88530SJohannes Berg case NL80211_CHAN_WIDTH_40: 27904bf88530SJohannes Berg if (chandef->center_freq1 > chandef->chan->center_freq) 27914bf88530SJohannes Berg ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; 27924bf88530SJohannes Berg else 2793074d46d1SJohannes Berg ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW; 279442e7aa77SAlexander Simon break; 279542e7aa77SAlexander Simon default: 2796074d46d1SJohannes Berg ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_NONE; 279742e7aa77SAlexander Simon break; 279842e7aa77SAlexander Simon } 2799aee286c2SThomas Pedersen if (ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 && 28004bf88530SJohannes Berg chandef->width != NL80211_CHAN_WIDTH_20_NOHT && 28014bf88530SJohannes Berg chandef->width != NL80211_CHAN_WIDTH_20) 2802074d46d1SJohannes Berg ht_oper->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY; 2803ff3cc5f4SSimon Wunderlich 280457f255f5SArik Nemtsov if (rifs_mode) 280557f255f5SArik Nemtsov ht_oper->ht_param |= IEEE80211_HT_PARAM_RIFS_MODE; 280657f255f5SArik Nemtsov 2807431e3154SAshok Nagarajan ht_oper->operation_mode = cpu_to_le16(prot_mode); 2808074d46d1SJohannes Berg ht_oper->stbc_param = 0x0000; 280942e7aa77SAlexander Simon 281042e7aa77SAlexander Simon /* It seems that Basic MCS set and Supported MCS set 281142e7aa77SAlexander Simon are identical for the first 10 bytes */ 2812074d46d1SJohannes Berg memset(&ht_oper->basic_set, 0, 16); 2813074d46d1SJohannes Berg memcpy(&ht_oper->basic_set, &ht_cap->mcs, 10); 281442e7aa77SAlexander Simon 2815074d46d1SJohannes Berg return pos + sizeof(struct ieee80211_ht_operation); 281642e7aa77SAlexander Simon } 281742e7aa77SAlexander Simon 281875d627d5SSimon Wunderlich void ieee80211_ie_build_wide_bw_cs(u8 *pos, 281975d627d5SSimon Wunderlich const struct cfg80211_chan_def *chandef) 282075d627d5SSimon Wunderlich { 282175d627d5SSimon Wunderlich *pos++ = WLAN_EID_WIDE_BW_CHANNEL_SWITCH; /* EID */ 282275d627d5SSimon Wunderlich *pos++ = 3; /* IE length */ 282375d627d5SSimon Wunderlich /* New channel width */ 282475d627d5SSimon Wunderlich switch (chandef->width) { 282575d627d5SSimon Wunderlich case NL80211_CHAN_WIDTH_80: 282675d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_80MHZ; 282775d627d5SSimon Wunderlich break; 282875d627d5SSimon Wunderlich case NL80211_CHAN_WIDTH_160: 282975d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_160MHZ; 283075d627d5SSimon Wunderlich break; 283175d627d5SSimon Wunderlich case NL80211_CHAN_WIDTH_80P80: 283275d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_80P80MHZ; 283375d627d5SSimon Wunderlich break; 283475d627d5SSimon Wunderlich default: 283575d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_USE_HT; 283675d627d5SSimon Wunderlich } 283775d627d5SSimon Wunderlich 283875d627d5SSimon Wunderlich /* new center frequency segment 0 */ 283975d627d5SSimon Wunderlich *pos++ = ieee80211_frequency_to_channel(chandef->center_freq1); 284075d627d5SSimon Wunderlich /* new center frequency segment 1 */ 284175d627d5SSimon Wunderlich if (chandef->center_freq2) 284275d627d5SSimon Wunderlich *pos++ = ieee80211_frequency_to_channel(chandef->center_freq2); 284375d627d5SSimon Wunderlich else 284475d627d5SSimon Wunderlich *pos++ = 0; 284575d627d5SSimon Wunderlich } 284675d627d5SSimon Wunderlich 2847fb28ec0cSArik Nemtsov u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2848fb28ec0cSArik Nemtsov const struct cfg80211_chan_def *chandef) 2849fb28ec0cSArik Nemtsov { 2850fb28ec0cSArik Nemtsov struct ieee80211_vht_operation *vht_oper; 2851fb28ec0cSArik Nemtsov 2852fb28ec0cSArik Nemtsov *pos++ = WLAN_EID_VHT_OPERATION; 2853fb28ec0cSArik Nemtsov *pos++ = sizeof(struct ieee80211_vht_operation); 2854fb28ec0cSArik Nemtsov vht_oper = (struct ieee80211_vht_operation *)pos; 28552fb51c35SJohannes Berg vht_oper->center_freq_seg0_idx = ieee80211_frequency_to_channel( 2856fb28ec0cSArik Nemtsov chandef->center_freq1); 2857fb28ec0cSArik Nemtsov if (chandef->center_freq2) 28582fb51c35SJohannes Berg vht_oper->center_freq_seg1_idx = 2859fb28ec0cSArik Nemtsov ieee80211_frequency_to_channel(chandef->center_freq2); 2860f020ae40SChun-Yeow Yeoh else 28612fb51c35SJohannes Berg vht_oper->center_freq_seg1_idx = 0x00; 2862fb28ec0cSArik Nemtsov 2863fb28ec0cSArik Nemtsov switch (chandef->width) { 2864fb28ec0cSArik Nemtsov case NL80211_CHAN_WIDTH_160: 286523665aafSJouni Malinen /* 286623665aafSJouni Malinen * Convert 160 MHz channel width to new style as interop 286723665aafSJouni Malinen * workaround. 286823665aafSJouni Malinen */ 286923665aafSJouni Malinen vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; 28702fb51c35SJohannes Berg vht_oper->center_freq_seg1_idx = vht_oper->center_freq_seg0_idx; 287123665aafSJouni Malinen if (chandef->chan->center_freq < chandef->center_freq1) 28722fb51c35SJohannes Berg vht_oper->center_freq_seg0_idx -= 8; 287323665aafSJouni Malinen else 28742fb51c35SJohannes Berg vht_oper->center_freq_seg0_idx += 8; 2875fb28ec0cSArik Nemtsov break; 2876fb28ec0cSArik Nemtsov case NL80211_CHAN_WIDTH_80P80: 287723665aafSJouni Malinen /* 287823665aafSJouni Malinen * Convert 80+80 MHz channel width to new style as interop 287923665aafSJouni Malinen * workaround. 288023665aafSJouni Malinen */ 288123665aafSJouni Malinen vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; 2882fb28ec0cSArik Nemtsov break; 2883fb28ec0cSArik Nemtsov case NL80211_CHAN_WIDTH_80: 2884fb28ec0cSArik Nemtsov vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; 2885fb28ec0cSArik Nemtsov break; 2886fb28ec0cSArik Nemtsov default: 2887fb28ec0cSArik Nemtsov vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_USE_HT; 2888fb28ec0cSArik Nemtsov break; 2889fb28ec0cSArik Nemtsov } 2890fb28ec0cSArik Nemtsov 2891fb28ec0cSArik Nemtsov /* don't require special VHT peer rates */ 2892fb28ec0cSArik Nemtsov vht_oper->basic_mcs_set = cpu_to_le16(0xffff); 2893fb28ec0cSArik Nemtsov 2894fb28ec0cSArik Nemtsov return pos + sizeof(struct ieee80211_vht_operation); 2895fb28ec0cSArik Nemtsov } 2896fb28ec0cSArik Nemtsov 28978ac3c704SJohannes Berg bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, 28984bf88530SJohannes Berg struct cfg80211_chan_def *chandef) 289942e7aa77SAlexander Simon { 290042e7aa77SAlexander Simon enum nl80211_channel_type channel_type; 290142e7aa77SAlexander Simon 29028ac3c704SJohannes Berg if (!ht_oper) 29038ac3c704SJohannes Berg return false; 290442e7aa77SAlexander Simon 2905074d46d1SJohannes Berg switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { 290642e7aa77SAlexander Simon case IEEE80211_HT_PARAM_CHA_SEC_NONE: 290742e7aa77SAlexander Simon channel_type = NL80211_CHAN_HT20; 290842e7aa77SAlexander Simon break; 290942e7aa77SAlexander Simon case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: 291042e7aa77SAlexander Simon channel_type = NL80211_CHAN_HT40PLUS; 291142e7aa77SAlexander Simon break; 291242e7aa77SAlexander Simon case IEEE80211_HT_PARAM_CHA_SEC_BELOW: 291342e7aa77SAlexander Simon channel_type = NL80211_CHAN_HT40MINUS; 291442e7aa77SAlexander Simon break; 291542e7aa77SAlexander Simon default: 291642e7aa77SAlexander Simon channel_type = NL80211_CHAN_NO_HT; 29178ac3c704SJohannes Berg return false; 291842e7aa77SAlexander Simon } 291942e7aa77SAlexander Simon 29208ac3c704SJohannes Berg cfg80211_chandef_create(chandef, chandef->chan, channel_type); 29218ac3c704SJohannes Berg return true; 292242e7aa77SAlexander Simon } 292342e7aa77SAlexander Simon 29247eb26df2SJohannes Berg bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, 29257eb26df2SJohannes Berg const struct ieee80211_vht_operation *oper, 29267eb26df2SJohannes Berg const struct ieee80211_ht_operation *htop, 2927abcff6efSJanusz.Dziedzic@tieto.com struct cfg80211_chan_def *chandef) 2928abcff6efSJanusz.Dziedzic@tieto.com { 29298ac3c704SJohannes Berg struct cfg80211_chan_def new = *chandef; 29307eb26df2SJohannes Berg int cf0, cf1; 29317eb26df2SJohannes Berg int ccfs0, ccfs1, ccfs2; 29327eb26df2SJohannes Berg int ccf0, ccf1; 2933abcff6efSJanusz.Dziedzic@tieto.com 29347eb26df2SJohannes Berg if (!oper || !htop) 29358ac3c704SJohannes Berg return false; 29368ac3c704SJohannes Berg 29377eb26df2SJohannes Berg ccfs0 = oper->center_freq_seg0_idx; 29387eb26df2SJohannes Berg ccfs1 = oper->center_freq_seg1_idx; 29397eb26df2SJohannes Berg ccfs2 = (le16_to_cpu(htop->operation_mode) & 29407eb26df2SJohannes Berg IEEE80211_HT_OP_MODE_CCFS2_MASK) 29417eb26df2SJohannes Berg >> IEEE80211_HT_OP_MODE_CCFS2_SHIFT; 29427eb26df2SJohannes Berg 29437eb26df2SJohannes Berg /* when parsing (and we know how to) CCFS1 and CCFS2 are equivalent */ 29447eb26df2SJohannes Berg ccf0 = ccfs0; 29457eb26df2SJohannes Berg ccf1 = ccfs1; 29467eb26df2SJohannes Berg if (!ccfs1 && ieee80211_hw_check(hw, SUPPORTS_VHT_EXT_NSS_BW)) 29477eb26df2SJohannes Berg ccf1 = ccfs2; 29487eb26df2SJohannes Berg 29497eb26df2SJohannes Berg cf0 = ieee80211_channel_to_frequency(ccf0, chandef->chan->band); 29507eb26df2SJohannes Berg cf1 = ieee80211_channel_to_frequency(ccf1, chandef->chan->band); 2951abcff6efSJanusz.Dziedzic@tieto.com 2952abcff6efSJanusz.Dziedzic@tieto.com switch (oper->chan_width) { 2953abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_USE_HT: 29547eb26df2SJohannes Berg /* just use HT information directly */ 2955abcff6efSJanusz.Dziedzic@tieto.com break; 2956abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_80MHZ: 29578ac3c704SJohannes Berg new.width = NL80211_CHAN_WIDTH_80; 29587eb26df2SJohannes Berg new.center_freq1 = cf0; 295923665aafSJouni Malinen /* If needed, adjust based on the newer interop workaround. */ 29607eb26df2SJohannes Berg if (ccf1) { 296123665aafSJouni Malinen unsigned int diff; 296223665aafSJouni Malinen 29637eb26df2SJohannes Berg diff = abs(ccf1 - ccf0); 296423665aafSJouni Malinen if (diff == 8) { 296523665aafSJouni Malinen new.width = NL80211_CHAN_WIDTH_160; 29667eb26df2SJohannes Berg new.center_freq1 = cf1; 296723665aafSJouni Malinen } else if (diff > 8) { 296823665aafSJouni Malinen new.width = NL80211_CHAN_WIDTH_80P80; 29697eb26df2SJohannes Berg new.center_freq2 = cf1; 297023665aafSJouni Malinen } 297123665aafSJouni Malinen } 2972abcff6efSJanusz.Dziedzic@tieto.com break; 2973abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_160MHZ: 29747eb26df2SJohannes Berg /* deprecated encoding */ 29758ac3c704SJohannes Berg new.width = NL80211_CHAN_WIDTH_160; 29767eb26df2SJohannes Berg new.center_freq1 = cf0; 2977abcff6efSJanusz.Dziedzic@tieto.com break; 2978abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_80P80MHZ: 29797eb26df2SJohannes Berg /* deprecated encoding */ 29808ac3c704SJohannes Berg new.width = NL80211_CHAN_WIDTH_80P80; 29817eb26df2SJohannes Berg new.center_freq1 = cf0; 29827eb26df2SJohannes Berg new.center_freq2 = cf1; 2983abcff6efSJanusz.Dziedzic@tieto.com break; 2984abcff6efSJanusz.Dziedzic@tieto.com default: 29858ac3c704SJohannes Berg return false; 2986abcff6efSJanusz.Dziedzic@tieto.com } 2987abcff6efSJanusz.Dziedzic@tieto.com 29888ac3c704SJohannes Berg if (!cfg80211_chandef_valid(&new)) 29898ac3c704SJohannes Berg return false; 29908ac3c704SJohannes Berg 29918ac3c704SJohannes Berg *chandef = new; 29928ac3c704SJohannes Berg return true; 2993abcff6efSJanusz.Dziedzic@tieto.com } 2994abcff6efSJanusz.Dziedzic@tieto.com 29952103dec1SSimon Wunderlich int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef, 29962103dec1SSimon Wunderlich const struct ieee80211_supported_band *sband, 29972103dec1SSimon Wunderlich const u8 *srates, int srates_len, u32 *rates) 29982103dec1SSimon Wunderlich { 29992103dec1SSimon Wunderlich u32 rate_flags = ieee80211_chandef_rate_flags(chandef); 30002103dec1SSimon Wunderlich int shift = ieee80211_chandef_get_shift(chandef); 30012103dec1SSimon Wunderlich struct ieee80211_rate *br; 30022103dec1SSimon Wunderlich int brate, rate, i, j, count = 0; 30032103dec1SSimon Wunderlich 30042103dec1SSimon Wunderlich *rates = 0; 30052103dec1SSimon Wunderlich 30062103dec1SSimon Wunderlich for (i = 0; i < srates_len; i++) { 30072103dec1SSimon Wunderlich rate = srates[i] & 0x7f; 30082103dec1SSimon Wunderlich 30092103dec1SSimon Wunderlich for (j = 0; j < sband->n_bitrates; j++) { 30102103dec1SSimon Wunderlich br = &sband->bitrates[j]; 30112103dec1SSimon Wunderlich if ((rate_flags & br->flags) != rate_flags) 30122103dec1SSimon Wunderlich continue; 30132103dec1SSimon Wunderlich 30142103dec1SSimon Wunderlich brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5); 30152103dec1SSimon Wunderlich if (brate == rate) { 30162103dec1SSimon Wunderlich *rates |= BIT(j); 30172103dec1SSimon Wunderlich count++; 30182103dec1SSimon Wunderlich break; 30192103dec1SSimon Wunderlich } 30202103dec1SSimon Wunderlich } 30212103dec1SSimon Wunderlich } 30222103dec1SSimon Wunderlich return count; 30232103dec1SSimon Wunderlich } 30242103dec1SSimon Wunderlich 3025fc8a7321SJohannes Berg int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, 30266b77863bSJohannes Berg struct sk_buff *skb, bool need_basic, 302757fbcce3SJohannes Berg enum nl80211_band band) 3028768db343SArik Nemtsov { 3029768db343SArik Nemtsov struct ieee80211_local *local = sdata->local; 3030768db343SArik Nemtsov struct ieee80211_supported_band *sband; 30312103dec1SSimon Wunderlich int rate, shift; 3032768db343SArik Nemtsov u8 i, rates, *pos; 3033fc8a7321SJohannes Berg u32 basic_rates = sdata->vif.bss_conf.basic_rates; 30342103dec1SSimon Wunderlich u32 rate_flags; 3035768db343SArik Nemtsov 30362103dec1SSimon Wunderlich shift = ieee80211_vif_get_shift(&sdata->vif); 30372103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); 30386b77863bSJohannes Berg sband = local->hw.wiphy->bands[band]; 30392103dec1SSimon Wunderlich rates = 0; 30402103dec1SSimon Wunderlich for (i = 0; i < sband->n_bitrates; i++) { 30412103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 30422103dec1SSimon Wunderlich continue; 30432103dec1SSimon Wunderlich rates++; 30442103dec1SSimon Wunderlich } 3045768db343SArik Nemtsov if (rates > 8) 3046768db343SArik Nemtsov rates = 8; 3047768db343SArik Nemtsov 3048768db343SArik Nemtsov if (skb_tailroom(skb) < rates + 2) 3049768db343SArik Nemtsov return -ENOMEM; 3050768db343SArik Nemtsov 3051768db343SArik Nemtsov pos = skb_put(skb, rates + 2); 3052768db343SArik Nemtsov *pos++ = WLAN_EID_SUPP_RATES; 3053768db343SArik Nemtsov *pos++ = rates; 3054768db343SArik Nemtsov for (i = 0; i < rates; i++) { 3055657c3e0cSAshok Nagarajan u8 basic = 0; 30562103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 30572103dec1SSimon Wunderlich continue; 30582103dec1SSimon Wunderlich 3059657c3e0cSAshok Nagarajan if (need_basic && basic_rates & BIT(i)) 3060657c3e0cSAshok Nagarajan basic = 0x80; 30612103dec1SSimon Wunderlich rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, 30622103dec1SSimon Wunderlich 5 * (1 << shift)); 30632103dec1SSimon Wunderlich *pos++ = basic | (u8) rate; 3064768db343SArik Nemtsov } 3065768db343SArik Nemtsov 3066768db343SArik Nemtsov return 0; 3067768db343SArik Nemtsov } 3068768db343SArik Nemtsov 3069fc8a7321SJohannes Berg int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, 30706b77863bSJohannes Berg struct sk_buff *skb, bool need_basic, 307157fbcce3SJohannes Berg enum nl80211_band band) 3072768db343SArik Nemtsov { 3073768db343SArik Nemtsov struct ieee80211_local *local = sdata->local; 3074768db343SArik Nemtsov struct ieee80211_supported_band *sband; 3075cc63ec76SChun-Yeow Yeoh int rate, shift; 3076768db343SArik Nemtsov u8 i, exrates, *pos; 3077fc8a7321SJohannes Berg u32 basic_rates = sdata->vif.bss_conf.basic_rates; 30782103dec1SSimon Wunderlich u32 rate_flags; 30792103dec1SSimon Wunderlich 30802103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); 30812103dec1SSimon Wunderlich shift = ieee80211_vif_get_shift(&sdata->vif); 3082768db343SArik Nemtsov 30836b77863bSJohannes Berg sband = local->hw.wiphy->bands[band]; 30842103dec1SSimon Wunderlich exrates = 0; 30852103dec1SSimon Wunderlich for (i = 0; i < sband->n_bitrates; i++) { 30862103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 30872103dec1SSimon Wunderlich continue; 30882103dec1SSimon Wunderlich exrates++; 30892103dec1SSimon Wunderlich } 30902103dec1SSimon Wunderlich 3091768db343SArik Nemtsov if (exrates > 8) 3092768db343SArik Nemtsov exrates -= 8; 3093768db343SArik Nemtsov else 3094768db343SArik Nemtsov exrates = 0; 3095768db343SArik Nemtsov 3096768db343SArik Nemtsov if (skb_tailroom(skb) < exrates + 2) 3097768db343SArik Nemtsov return -ENOMEM; 3098768db343SArik Nemtsov 3099768db343SArik Nemtsov if (exrates) { 3100768db343SArik Nemtsov pos = skb_put(skb, exrates + 2); 3101768db343SArik Nemtsov *pos++ = WLAN_EID_EXT_SUPP_RATES; 3102768db343SArik Nemtsov *pos++ = exrates; 3103768db343SArik Nemtsov for (i = 8; i < sband->n_bitrates; i++) { 3104657c3e0cSAshok Nagarajan u8 basic = 0; 31052103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) 31062103dec1SSimon Wunderlich != rate_flags) 31072103dec1SSimon Wunderlich continue; 3108657c3e0cSAshok Nagarajan if (need_basic && basic_rates & BIT(i)) 3109657c3e0cSAshok Nagarajan basic = 0x80; 31102103dec1SSimon Wunderlich rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, 31112103dec1SSimon Wunderlich 5 * (1 << shift)); 31122103dec1SSimon Wunderlich *pos++ = basic | (u8) rate; 3113768db343SArik Nemtsov } 3114768db343SArik Nemtsov } 3115768db343SArik Nemtsov return 0; 3116768db343SArik Nemtsov } 31171dae27f8SWey-Yi Guy 31181dae27f8SWey-Yi Guy int ieee80211_ave_rssi(struct ieee80211_vif *vif) 31191dae27f8SWey-Yi Guy { 31201dae27f8SWey-Yi Guy struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 31211dae27f8SWey-Yi Guy struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 31221dae27f8SWey-Yi Guy 3123be6bcabcSWey-Yi Guy if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) { 3124be6bcabcSWey-Yi Guy /* non-managed type inferfaces */ 3125be6bcabcSWey-Yi Guy return 0; 3126be6bcabcSWey-Yi Guy } 3127338c17aeSJohannes Berg return -ewma_beacon_signal_read(&ifmgd->ave_beacon_signal); 31281dae27f8SWey-Yi Guy } 31290d8a0a17SWey-Yi Guy EXPORT_SYMBOL_GPL(ieee80211_ave_rssi); 313004ecd257SJohannes Berg 313104ecd257SJohannes Berg u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs) 313204ecd257SJohannes Berg { 313304ecd257SJohannes Berg if (!mcs) 313404ecd257SJohannes Berg return 1; 313504ecd257SJohannes Berg 313604ecd257SJohannes Berg /* TODO: consider rx_highest */ 313704ecd257SJohannes Berg 313804ecd257SJohannes Berg if (mcs->rx_mask[3]) 313904ecd257SJohannes Berg return 4; 314004ecd257SJohannes Berg if (mcs->rx_mask[2]) 314104ecd257SJohannes Berg return 3; 314204ecd257SJohannes Berg if (mcs->rx_mask[1]) 314304ecd257SJohannes Berg return 2; 314404ecd257SJohannes Berg return 1; 314504ecd257SJohannes Berg } 3146f4bda337SThomas Pedersen 3147f4bda337SThomas Pedersen /** 3148f4bda337SThomas Pedersen * ieee80211_calculate_rx_timestamp - calculate timestamp in frame 3149f4bda337SThomas Pedersen * @local: mac80211 hw info struct 3150f4bda337SThomas Pedersen * @status: RX status 3151f4bda337SThomas Pedersen * @mpdu_len: total MPDU length (including FCS) 3152f4bda337SThomas Pedersen * @mpdu_offset: offset into MPDU to calculate timestamp at 3153f4bda337SThomas Pedersen * 3154f4bda337SThomas Pedersen * This function calculates the RX timestamp at the given MPDU offset, taking 3155f4bda337SThomas Pedersen * into account what the RX timestamp was. An offset of 0 will just normalize 3156f4bda337SThomas Pedersen * the timestamp to TSF at beginning of MPDU reception. 3157f4bda337SThomas Pedersen */ 3158f4bda337SThomas Pedersen u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, 3159f4bda337SThomas Pedersen struct ieee80211_rx_status *status, 3160f4bda337SThomas Pedersen unsigned int mpdu_len, 3161f4bda337SThomas Pedersen unsigned int mpdu_offset) 3162f4bda337SThomas Pedersen { 3163f4bda337SThomas Pedersen u64 ts = status->mactime; 3164f4bda337SThomas Pedersen struct rate_info ri; 3165f4bda337SThomas Pedersen u16 rate; 3166f4bda337SThomas Pedersen 3167f4bda337SThomas Pedersen if (WARN_ON(!ieee80211_have_rx_timestamp(status))) 3168f4bda337SThomas Pedersen return 0; 3169f4bda337SThomas Pedersen 3170f4bda337SThomas Pedersen memset(&ri, 0, sizeof(ri)); 3171f4bda337SThomas Pedersen 317235f4962cSJohannes Berg ri.bw = status->bw; 317335f4962cSJohannes Berg 3174f4bda337SThomas Pedersen /* Fill cfg80211 rate info */ 3175da6a4352SJohannes Berg switch (status->encoding) { 3176da6a4352SJohannes Berg case RX_ENC_HT: 3177f4bda337SThomas Pedersen ri.mcs = status->rate_idx; 3178f4bda337SThomas Pedersen ri.flags |= RATE_INFO_FLAGS_MCS; 31797fdd69c5SJohannes Berg if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) 3180f4bda337SThomas Pedersen ri.flags |= RATE_INFO_FLAGS_SHORT_GI; 3181da6a4352SJohannes Berg break; 3182da6a4352SJohannes Berg case RX_ENC_VHT: 31835614618eSJohannes Berg ri.flags |= RATE_INFO_FLAGS_VHT_MCS; 31845614618eSJohannes Berg ri.mcs = status->rate_idx; 31858613c948SJohannes Berg ri.nss = status->nss; 31867fdd69c5SJohannes Berg if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) 31875614618eSJohannes Berg ri.flags |= RATE_INFO_FLAGS_SHORT_GI; 3188da6a4352SJohannes Berg break; 3189da6a4352SJohannes Berg default: 3190da6a4352SJohannes Berg WARN_ON(1); 3191da6a4352SJohannes Berg /* fall through */ 3192da6a4352SJohannes Berg case RX_ENC_LEGACY: { 3193f4bda337SThomas Pedersen struct ieee80211_supported_band *sband; 31942103dec1SSimon Wunderlich int shift = 0; 31952103dec1SSimon Wunderlich int bitrate; 31962103dec1SSimon Wunderlich 3197da6a4352SJohannes Berg switch (status->bw) { 3198da6a4352SJohannes Berg case RATE_INFO_BW_10: 31992103dec1SSimon Wunderlich shift = 1; 3200da6a4352SJohannes Berg break; 3201da6a4352SJohannes Berg case RATE_INFO_BW_5: 32022103dec1SSimon Wunderlich shift = 2; 3203da6a4352SJohannes Berg break; 3204b51f3beeSJohannes Berg } 3205f4bda337SThomas Pedersen 3206f4bda337SThomas Pedersen sband = local->hw.wiphy->bands[status->band]; 32072103dec1SSimon Wunderlich bitrate = sband->bitrates[status->rate_idx].bitrate; 32082103dec1SSimon Wunderlich ri.legacy = DIV_ROUND_UP(bitrate, (1 << shift)); 3209f4a0f0c5SJohannes Berg 3210f4a0f0c5SJohannes Berg if (status->flag & RX_FLAG_MACTIME_PLCP_START) { 3211f4a0f0c5SJohannes Berg /* TODO: handle HT/VHT preambles */ 321257fbcce3SJohannes Berg if (status->band == NL80211_BAND_5GHZ) { 3213f4a0f0c5SJohannes Berg ts += 20 << shift; 3214f4a0f0c5SJohannes Berg mpdu_offset += 2; 32157fdd69c5SJohannes Berg } else if (status->enc_flags & RX_ENC_FLAG_SHORTPRE) { 3216f4a0f0c5SJohannes Berg ts += 96; 3217f4a0f0c5SJohannes Berg } else { 3218f4a0f0c5SJohannes Berg ts += 192; 3219f4a0f0c5SJohannes Berg } 3220f4a0f0c5SJohannes Berg } 3221da6a4352SJohannes Berg break; 3222da6a4352SJohannes Berg } 3223f4bda337SThomas Pedersen } 3224f4bda337SThomas Pedersen 3225f4bda337SThomas Pedersen rate = cfg80211_calculate_bitrate(&ri); 3226d86aa4f8SJohannes Berg if (WARN_ONCE(!rate, 3227f980ebc0SSara Sharon "Invalid bitrate: flags=0x%llx, idx=%d, vht_nss=%d\n", 3228f980ebc0SSara Sharon (unsigned long long)status->flag, status->rate_idx, 32298613c948SJohannes Berg status->nss)) 3230d86aa4f8SJohannes Berg return 0; 3231f4bda337SThomas Pedersen 3232f4bda337SThomas Pedersen /* rewind from end of MPDU */ 3233f4bda337SThomas Pedersen if (status->flag & RX_FLAG_MACTIME_END) 3234f4bda337SThomas Pedersen ts -= mpdu_len * 8 * 10 / rate; 3235f4bda337SThomas Pedersen 3236f4bda337SThomas Pedersen ts += mpdu_offset * 8 * 10 / rate; 3237f4bda337SThomas Pedersen 3238f4bda337SThomas Pedersen return ts; 3239f4bda337SThomas Pedersen } 3240164eb02dSSimon Wunderlich 3241164eb02dSSimon Wunderlich void ieee80211_dfs_cac_cancel(struct ieee80211_local *local) 3242164eb02dSSimon Wunderlich { 3243164eb02dSSimon Wunderlich struct ieee80211_sub_if_data *sdata; 3244d2859df5SJanusz Dziedzic struct cfg80211_chan_def chandef; 3245164eb02dSSimon Wunderlich 32464a199068SJohannes Berg /* for interface list, to avoid linking iflist_mtx and chanctx_mtx */ 32474a199068SJohannes Berg ASSERT_RTNL(); 32484a199068SJohannes Berg 324934a3740dSJohannes Berg mutex_lock(&local->mtx); 3250164eb02dSSimon Wunderlich list_for_each_entry(sdata, &local->interfaces, list) { 325134a3740dSJohannes Berg /* it might be waiting for the local->mtx, but then 325234a3740dSJohannes Berg * by the time it gets it, sdata->wdev.cac_started 325334a3740dSJohannes Berg * will no longer be true 325434a3740dSJohannes Berg */ 325534a3740dSJohannes Berg cancel_delayed_work(&sdata->dfs_cac_timer_work); 3256164eb02dSSimon Wunderlich 3257164eb02dSSimon Wunderlich if (sdata->wdev.cac_started) { 3258d2859df5SJanusz Dziedzic chandef = sdata->vif.bss_conf.chandef; 3259164eb02dSSimon Wunderlich ieee80211_vif_release_channel(sdata); 3260164eb02dSSimon Wunderlich cfg80211_cac_event(sdata->dev, 3261d2859df5SJanusz Dziedzic &chandef, 3262164eb02dSSimon Wunderlich NL80211_RADAR_CAC_ABORTED, 3263164eb02dSSimon Wunderlich GFP_KERNEL); 3264164eb02dSSimon Wunderlich } 3265164eb02dSSimon Wunderlich } 326634a3740dSJohannes Berg mutex_unlock(&local->mtx); 3267164eb02dSSimon Wunderlich } 3268164eb02dSSimon Wunderlich 3269164eb02dSSimon Wunderlich void ieee80211_dfs_radar_detected_work(struct work_struct *work) 3270164eb02dSSimon Wunderlich { 3271164eb02dSSimon Wunderlich struct ieee80211_local *local = 3272164eb02dSSimon Wunderlich container_of(work, struct ieee80211_local, radar_detected_work); 327384a3d1c9SJanusz Dziedzic struct cfg80211_chan_def chandef = local->hw.conf.chandef; 3274486cf4c0SMichal Kazior struct ieee80211_chanctx *ctx; 3275486cf4c0SMichal Kazior int num_chanctx = 0; 3276486cf4c0SMichal Kazior 3277486cf4c0SMichal Kazior mutex_lock(&local->chanctx_mtx); 3278486cf4c0SMichal Kazior list_for_each_entry(ctx, &local->chanctx_list, list) { 3279486cf4c0SMichal Kazior if (ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER) 3280486cf4c0SMichal Kazior continue; 3281486cf4c0SMichal Kazior 3282486cf4c0SMichal Kazior num_chanctx++; 3283486cf4c0SMichal Kazior chandef = ctx->conf.def; 3284486cf4c0SMichal Kazior } 3285486cf4c0SMichal Kazior mutex_unlock(&local->chanctx_mtx); 3286164eb02dSSimon Wunderlich 32874a199068SJohannes Berg rtnl_lock(); 3288164eb02dSSimon Wunderlich ieee80211_dfs_cac_cancel(local); 32894a199068SJohannes Berg rtnl_unlock(); 3290164eb02dSSimon Wunderlich 3291486cf4c0SMichal Kazior if (num_chanctx > 1) 3292486cf4c0SMichal Kazior /* XXX: multi-channel is not supported yet */ 3293164eb02dSSimon Wunderlich WARN_ON(1); 329484a3d1c9SJanusz Dziedzic else 3295164eb02dSSimon Wunderlich cfg80211_radar_event(local->hw.wiphy, &chandef, GFP_KERNEL); 3296164eb02dSSimon Wunderlich } 3297164eb02dSSimon Wunderlich 3298164eb02dSSimon Wunderlich void ieee80211_radar_detected(struct ieee80211_hw *hw) 3299164eb02dSSimon Wunderlich { 3300164eb02dSSimon Wunderlich struct ieee80211_local *local = hw_to_local(hw); 3301164eb02dSSimon Wunderlich 3302164eb02dSSimon Wunderlich trace_api_radar_detected(local); 3303164eb02dSSimon Wunderlich 33044a199068SJohannes Berg schedule_work(&local->radar_detected_work); 3305164eb02dSSimon Wunderlich } 3306164eb02dSSimon Wunderlich EXPORT_SYMBOL(ieee80211_radar_detected); 3307e6b7cde4SSimon Wunderlich 3308e6b7cde4SSimon Wunderlich u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c) 3309e6b7cde4SSimon Wunderlich { 3310e6b7cde4SSimon Wunderlich u32 ret; 3311e6b7cde4SSimon Wunderlich int tmp; 3312e6b7cde4SSimon Wunderlich 3313e6b7cde4SSimon Wunderlich switch (c->width) { 3314e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_20: 3315e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_20_NOHT; 3316e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; 3317e6b7cde4SSimon Wunderlich break; 3318e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_40: 3319e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_20; 3320e6b7cde4SSimon Wunderlich c->center_freq1 = c->chan->center_freq; 3321e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_40MHZ | 3322e6b7cde4SSimon Wunderlich IEEE80211_STA_DISABLE_VHT; 3323e6b7cde4SSimon Wunderlich break; 3324e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_80: 3325e6b7cde4SSimon Wunderlich tmp = (30 + c->chan->center_freq - c->center_freq1)/20; 3326e6b7cde4SSimon Wunderlich /* n_P40 */ 3327e6b7cde4SSimon Wunderlich tmp /= 2; 3328e6b7cde4SSimon Wunderlich /* freq_P40 */ 3329e6b7cde4SSimon Wunderlich c->center_freq1 = c->center_freq1 - 20 + 40 * tmp; 3330e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_40; 3331e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_VHT; 3332e6b7cde4SSimon Wunderlich break; 3333e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_80P80: 3334e6b7cde4SSimon Wunderlich c->center_freq2 = 0; 3335e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_80; 3336e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_80P80MHZ | 3337e6b7cde4SSimon Wunderlich IEEE80211_STA_DISABLE_160MHZ; 3338e6b7cde4SSimon Wunderlich break; 3339e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_160: 3340e6b7cde4SSimon Wunderlich /* n_P20 */ 3341e6b7cde4SSimon Wunderlich tmp = (70 + c->chan->center_freq - c->center_freq1)/20; 3342e6b7cde4SSimon Wunderlich /* n_P80 */ 3343e6b7cde4SSimon Wunderlich tmp /= 4; 3344e6b7cde4SSimon Wunderlich c->center_freq1 = c->center_freq1 - 40 + 80 * tmp; 3345e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_80; 3346e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_80P80MHZ | 3347e6b7cde4SSimon Wunderlich IEEE80211_STA_DISABLE_160MHZ; 3348e6b7cde4SSimon Wunderlich break; 3349e6b7cde4SSimon Wunderlich default: 3350e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_20_NOHT: 3351e6b7cde4SSimon Wunderlich WARN_ON_ONCE(1); 3352e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_20_NOHT; 3353e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; 3354e6b7cde4SSimon Wunderlich break; 3355e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_5: 3356e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_10: 3357e6b7cde4SSimon Wunderlich WARN_ON_ONCE(1); 3358e6b7cde4SSimon Wunderlich /* keep c->width */ 3359e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; 3360e6b7cde4SSimon Wunderlich break; 3361e6b7cde4SSimon Wunderlich } 3362e6b7cde4SSimon Wunderlich 3363e6b7cde4SSimon Wunderlich WARN_ON_ONCE(!cfg80211_chandef_valid(c)); 3364e6b7cde4SSimon Wunderlich 3365e6b7cde4SSimon Wunderlich return ret; 3366e6b7cde4SSimon Wunderlich } 3367687da132SEmmanuel Grumbach 3368687da132SEmmanuel Grumbach /* 3369687da132SEmmanuel Grumbach * Returns true if smps_mode_new is strictly more restrictive than 3370687da132SEmmanuel Grumbach * smps_mode_old. 3371687da132SEmmanuel Grumbach */ 3372687da132SEmmanuel Grumbach bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old, 3373687da132SEmmanuel Grumbach enum ieee80211_smps_mode smps_mode_new) 3374687da132SEmmanuel Grumbach { 3375687da132SEmmanuel Grumbach if (WARN_ON_ONCE(smps_mode_old == IEEE80211_SMPS_AUTOMATIC || 3376687da132SEmmanuel Grumbach smps_mode_new == IEEE80211_SMPS_AUTOMATIC)) 3377687da132SEmmanuel Grumbach return false; 3378687da132SEmmanuel Grumbach 3379687da132SEmmanuel Grumbach switch (smps_mode_old) { 3380687da132SEmmanuel Grumbach case IEEE80211_SMPS_STATIC: 3381687da132SEmmanuel Grumbach return false; 3382687da132SEmmanuel Grumbach case IEEE80211_SMPS_DYNAMIC: 3383687da132SEmmanuel Grumbach return smps_mode_new == IEEE80211_SMPS_STATIC; 3384687da132SEmmanuel Grumbach case IEEE80211_SMPS_OFF: 3385687da132SEmmanuel Grumbach return smps_mode_new != IEEE80211_SMPS_OFF; 3386687da132SEmmanuel Grumbach default: 3387687da132SEmmanuel Grumbach WARN_ON(1); 3388687da132SEmmanuel Grumbach } 3389687da132SEmmanuel Grumbach 3390687da132SEmmanuel Grumbach return false; 3391687da132SEmmanuel Grumbach } 3392c6da674aSChun-Yeow Yeoh 3393c6da674aSChun-Yeow Yeoh int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, 3394c6da674aSChun-Yeow Yeoh struct cfg80211_csa_settings *csa_settings) 3395c6da674aSChun-Yeow Yeoh { 3396c6da674aSChun-Yeow Yeoh struct sk_buff *skb; 3397c6da674aSChun-Yeow Yeoh struct ieee80211_mgmt *mgmt; 3398c6da674aSChun-Yeow Yeoh struct ieee80211_local *local = sdata->local; 3399c6da674aSChun-Yeow Yeoh int freq; 34004c121fd6SJohannes Berg int hdr_len = offsetofend(struct ieee80211_mgmt, 34014c121fd6SJohannes Berg u.action.u.chan_switch); 3402c6da674aSChun-Yeow Yeoh u8 *pos; 3403c6da674aSChun-Yeow Yeoh 3404c6da674aSChun-Yeow Yeoh if (sdata->vif.type != NL80211_IFTYPE_ADHOC && 3405c6da674aSChun-Yeow Yeoh sdata->vif.type != NL80211_IFTYPE_MESH_POINT) 3406c6da674aSChun-Yeow Yeoh return -EOPNOTSUPP; 3407c6da674aSChun-Yeow Yeoh 3408c6da674aSChun-Yeow Yeoh skb = dev_alloc_skb(local->tx_headroom + hdr_len + 3409c6da674aSChun-Yeow Yeoh 5 + /* channel switch announcement element */ 3410c6da674aSChun-Yeow Yeoh 3 + /* secondary channel offset element */ 341175d627d5SSimon Wunderlich 5 + /* wide bandwidth channel switch announcement */ 3412c6da674aSChun-Yeow Yeoh 8); /* mesh channel switch parameters element */ 3413c6da674aSChun-Yeow Yeoh if (!skb) 3414c6da674aSChun-Yeow Yeoh return -ENOMEM; 3415c6da674aSChun-Yeow Yeoh 3416c6da674aSChun-Yeow Yeoh skb_reserve(skb, local->tx_headroom); 3417b080db58SJohannes Berg mgmt = skb_put_zero(skb, hdr_len); 3418c6da674aSChun-Yeow Yeoh mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 3419c6da674aSChun-Yeow Yeoh IEEE80211_STYPE_ACTION); 3420c6da674aSChun-Yeow Yeoh 3421c6da674aSChun-Yeow Yeoh eth_broadcast_addr(mgmt->da); 3422c6da674aSChun-Yeow Yeoh memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 3423c6da674aSChun-Yeow Yeoh if (ieee80211_vif_is_mesh(&sdata->vif)) { 3424c6da674aSChun-Yeow Yeoh memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN); 3425c6da674aSChun-Yeow Yeoh } else { 3426c6da674aSChun-Yeow Yeoh struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; 3427c6da674aSChun-Yeow Yeoh memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN); 3428c6da674aSChun-Yeow Yeoh } 3429c6da674aSChun-Yeow Yeoh mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT; 3430c6da674aSChun-Yeow Yeoh mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH; 3431c6da674aSChun-Yeow Yeoh pos = skb_put(skb, 5); 3432c6da674aSChun-Yeow Yeoh *pos++ = WLAN_EID_CHANNEL_SWITCH; /* EID */ 3433c6da674aSChun-Yeow Yeoh *pos++ = 3; /* IE length */ 3434c6da674aSChun-Yeow Yeoh *pos++ = csa_settings->block_tx ? 1 : 0; /* CSA mode */ 3435c6da674aSChun-Yeow Yeoh freq = csa_settings->chandef.chan->center_freq; 3436c6da674aSChun-Yeow Yeoh *pos++ = ieee80211_frequency_to_channel(freq); /* channel */ 3437c6da674aSChun-Yeow Yeoh *pos++ = csa_settings->count; /* count */ 3438c6da674aSChun-Yeow Yeoh 3439c6da674aSChun-Yeow Yeoh if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) { 3440c6da674aSChun-Yeow Yeoh enum nl80211_channel_type ch_type; 3441c6da674aSChun-Yeow Yeoh 3442c6da674aSChun-Yeow Yeoh skb_put(skb, 3); 3443c6da674aSChun-Yeow Yeoh *pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET; /* EID */ 3444c6da674aSChun-Yeow Yeoh *pos++ = 1; /* IE length */ 3445c6da674aSChun-Yeow Yeoh ch_type = cfg80211_get_chandef_type(&csa_settings->chandef); 3446c6da674aSChun-Yeow Yeoh if (ch_type == NL80211_CHAN_HT40PLUS) 3447c6da674aSChun-Yeow Yeoh *pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; 3448c6da674aSChun-Yeow Yeoh else 3449c6da674aSChun-Yeow Yeoh *pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW; 3450c6da674aSChun-Yeow Yeoh } 3451c6da674aSChun-Yeow Yeoh 3452c6da674aSChun-Yeow Yeoh if (ieee80211_vif_is_mesh(&sdata->vif)) { 3453c6da674aSChun-Yeow Yeoh struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3454c6da674aSChun-Yeow Yeoh 3455c6da674aSChun-Yeow Yeoh skb_put(skb, 8); 3456c6da674aSChun-Yeow Yeoh *pos++ = WLAN_EID_CHAN_SWITCH_PARAM; /* EID */ 3457c6da674aSChun-Yeow Yeoh *pos++ = 6; /* IE length */ 3458c6da674aSChun-Yeow Yeoh *pos++ = sdata->u.mesh.mshcfg.dot11MeshTTL; /* Mesh TTL */ 3459c6da674aSChun-Yeow Yeoh *pos = 0x00; /* Mesh Flag: Tx Restrict, Initiator, Reason */ 3460c6da674aSChun-Yeow Yeoh *pos |= WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR; 3461c6da674aSChun-Yeow Yeoh *pos++ |= csa_settings->block_tx ? 3462c6da674aSChun-Yeow Yeoh WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT : 0x00; 3463c6da674aSChun-Yeow Yeoh put_unaligned_le16(WLAN_REASON_MESH_CHAN, pos); /* Reason Cd */ 3464c6da674aSChun-Yeow Yeoh pos += 2; 3465ca91dc97SChun-Yeow Yeoh put_unaligned_le16(ifmsh->pre_value, pos);/* Precedence Value */ 3466c6da674aSChun-Yeow Yeoh pos += 2; 3467c6da674aSChun-Yeow Yeoh } 3468c6da674aSChun-Yeow Yeoh 346975d627d5SSimon Wunderlich if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_80 || 347075d627d5SSimon Wunderlich csa_settings->chandef.width == NL80211_CHAN_WIDTH_80P80 || 347175d627d5SSimon Wunderlich csa_settings->chandef.width == NL80211_CHAN_WIDTH_160) { 347275d627d5SSimon Wunderlich skb_put(skb, 5); 347375d627d5SSimon Wunderlich ieee80211_ie_build_wide_bw_cs(pos, &csa_settings->chandef); 347475d627d5SSimon Wunderlich } 347575d627d5SSimon Wunderlich 3476c6da674aSChun-Yeow Yeoh ieee80211_tx_skb(sdata, skb); 3477c6da674aSChun-Yeow Yeoh return 0; 3478c6da674aSChun-Yeow Yeoh } 34792475b1ccSMax Stepanov 34802475b1ccSMax Stepanov bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs) 34812475b1ccSMax Stepanov { 34822475b1ccSMax Stepanov return !(cs == NULL || cs->cipher == 0 || 34832475b1ccSMax Stepanov cs->hdr_len < cs->pn_len + cs->pn_off || 34842475b1ccSMax Stepanov cs->hdr_len <= cs->key_idx_off || 34852475b1ccSMax Stepanov cs->key_idx_shift > 7 || 34862475b1ccSMax Stepanov cs->key_idx_mask == 0); 34872475b1ccSMax Stepanov } 34882475b1ccSMax Stepanov 34892475b1ccSMax Stepanov bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n) 34902475b1ccSMax Stepanov { 34912475b1ccSMax Stepanov int i; 34922475b1ccSMax Stepanov 34932475b1ccSMax Stepanov /* Ensure we have enough iftype bitmap space for all iftype values */ 34942475b1ccSMax Stepanov WARN_ON((NUM_NL80211_IFTYPES / 8 + 1) > sizeof(cs[0].iftype)); 34952475b1ccSMax Stepanov 34962475b1ccSMax Stepanov for (i = 0; i < n; i++) 34972475b1ccSMax Stepanov if (!ieee80211_cs_valid(&cs[i])) 34982475b1ccSMax Stepanov return false; 34992475b1ccSMax Stepanov 35002475b1ccSMax Stepanov return true; 35012475b1ccSMax Stepanov } 35022475b1ccSMax Stepanov 35032475b1ccSMax Stepanov const struct ieee80211_cipher_scheme * 35042475b1ccSMax Stepanov ieee80211_cs_get(struct ieee80211_local *local, u32 cipher, 35052475b1ccSMax Stepanov enum nl80211_iftype iftype) 35062475b1ccSMax Stepanov { 35072475b1ccSMax Stepanov const struct ieee80211_cipher_scheme *l = local->hw.cipher_schemes; 35082475b1ccSMax Stepanov int n = local->hw.n_cipher_schemes; 35092475b1ccSMax Stepanov int i; 35102475b1ccSMax Stepanov const struct ieee80211_cipher_scheme *cs = NULL; 35112475b1ccSMax Stepanov 35122475b1ccSMax Stepanov for (i = 0; i < n; i++) { 35132475b1ccSMax Stepanov if (l[i].cipher == cipher) { 35142475b1ccSMax Stepanov cs = &l[i]; 35152475b1ccSMax Stepanov break; 35162475b1ccSMax Stepanov } 35172475b1ccSMax Stepanov } 35182475b1ccSMax Stepanov 35192475b1ccSMax Stepanov if (!cs || !(cs->iftype & BIT(iftype))) 35202475b1ccSMax Stepanov return NULL; 35212475b1ccSMax Stepanov 35222475b1ccSMax Stepanov return cs; 35232475b1ccSMax Stepanov } 35242475b1ccSMax Stepanov 35252475b1ccSMax Stepanov int ieee80211_cs_headroom(struct ieee80211_local *local, 35262475b1ccSMax Stepanov struct cfg80211_crypto_settings *crypto, 35272475b1ccSMax Stepanov enum nl80211_iftype iftype) 35282475b1ccSMax Stepanov { 35292475b1ccSMax Stepanov const struct ieee80211_cipher_scheme *cs; 35302475b1ccSMax Stepanov int headroom = IEEE80211_ENCRYPT_HEADROOM; 35312475b1ccSMax Stepanov int i; 35322475b1ccSMax Stepanov 35332475b1ccSMax Stepanov for (i = 0; i < crypto->n_ciphers_pairwise; i++) { 35342475b1ccSMax Stepanov cs = ieee80211_cs_get(local, crypto->ciphers_pairwise[i], 35352475b1ccSMax Stepanov iftype); 35362475b1ccSMax Stepanov 35372475b1ccSMax Stepanov if (cs && headroom < cs->hdr_len) 35382475b1ccSMax Stepanov headroom = cs->hdr_len; 35392475b1ccSMax Stepanov } 35402475b1ccSMax Stepanov 35412475b1ccSMax Stepanov cs = ieee80211_cs_get(local, crypto->cipher_group, iftype); 35422475b1ccSMax Stepanov if (cs && headroom < cs->hdr_len) 35432475b1ccSMax Stepanov headroom = cs->hdr_len; 35442475b1ccSMax Stepanov 35452475b1ccSMax Stepanov return headroom; 35462475b1ccSMax Stepanov } 3547a7022e65SFelix Fietkau 3548a7022e65SFelix Fietkau static bool 3549a7022e65SFelix Fietkau ieee80211_extend_noa_desc(struct ieee80211_noa_data *data, u32 tsf, int i) 3550a7022e65SFelix Fietkau { 3551a7022e65SFelix Fietkau s32 end = data->desc[i].start + data->desc[i].duration - (tsf + 1); 3552a7022e65SFelix Fietkau int skip; 3553a7022e65SFelix Fietkau 3554a7022e65SFelix Fietkau if (end > 0) 3555a7022e65SFelix Fietkau return false; 3556a7022e65SFelix Fietkau 3557519ee691SJanusz.Dziedzic@tieto.com /* One shot NOA */ 3558519ee691SJanusz.Dziedzic@tieto.com if (data->count[i] == 1) 3559519ee691SJanusz.Dziedzic@tieto.com return false; 3560519ee691SJanusz.Dziedzic@tieto.com 3561519ee691SJanusz.Dziedzic@tieto.com if (data->desc[i].interval == 0) 3562519ee691SJanusz.Dziedzic@tieto.com return false; 3563519ee691SJanusz.Dziedzic@tieto.com 3564a7022e65SFelix Fietkau /* End time is in the past, check for repetitions */ 3565a7022e65SFelix Fietkau skip = DIV_ROUND_UP(-end, data->desc[i].interval); 3566a7022e65SFelix Fietkau if (data->count[i] < 255) { 3567a7022e65SFelix Fietkau if (data->count[i] <= skip) { 3568a7022e65SFelix Fietkau data->count[i] = 0; 3569a7022e65SFelix Fietkau return false; 3570a7022e65SFelix Fietkau } 3571a7022e65SFelix Fietkau 3572a7022e65SFelix Fietkau data->count[i] -= skip; 3573a7022e65SFelix Fietkau } 3574a7022e65SFelix Fietkau 3575a7022e65SFelix Fietkau data->desc[i].start += skip * data->desc[i].interval; 3576a7022e65SFelix Fietkau 3577a7022e65SFelix Fietkau return true; 3578a7022e65SFelix Fietkau } 3579a7022e65SFelix Fietkau 3580a7022e65SFelix Fietkau static bool 3581a7022e65SFelix Fietkau ieee80211_extend_absent_time(struct ieee80211_noa_data *data, u32 tsf, 3582a7022e65SFelix Fietkau s32 *offset) 3583a7022e65SFelix Fietkau { 3584a7022e65SFelix Fietkau bool ret = false; 3585a7022e65SFelix Fietkau int i; 3586a7022e65SFelix Fietkau 3587a7022e65SFelix Fietkau for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { 3588a7022e65SFelix Fietkau s32 cur; 3589a7022e65SFelix Fietkau 3590a7022e65SFelix Fietkau if (!data->count[i]) 3591a7022e65SFelix Fietkau continue; 3592a7022e65SFelix Fietkau 3593a7022e65SFelix Fietkau if (ieee80211_extend_noa_desc(data, tsf + *offset, i)) 3594a7022e65SFelix Fietkau ret = true; 3595a7022e65SFelix Fietkau 3596a7022e65SFelix Fietkau cur = data->desc[i].start - tsf; 3597a7022e65SFelix Fietkau if (cur > *offset) 3598a7022e65SFelix Fietkau continue; 3599a7022e65SFelix Fietkau 3600a7022e65SFelix Fietkau cur = data->desc[i].start + data->desc[i].duration - tsf; 3601a7022e65SFelix Fietkau if (cur > *offset) 3602a7022e65SFelix Fietkau *offset = cur; 3603a7022e65SFelix Fietkau } 3604a7022e65SFelix Fietkau 3605a7022e65SFelix Fietkau return ret; 3606a7022e65SFelix Fietkau } 3607a7022e65SFelix Fietkau 3608a7022e65SFelix Fietkau static u32 3609a7022e65SFelix Fietkau ieee80211_get_noa_absent_time(struct ieee80211_noa_data *data, u32 tsf) 3610a7022e65SFelix Fietkau { 3611a7022e65SFelix Fietkau s32 offset = 0; 3612a7022e65SFelix Fietkau int tries = 0; 3613a7022e65SFelix Fietkau /* 3614a7022e65SFelix Fietkau * arbitrary limit, used to avoid infinite loops when combined NoA 3615a7022e65SFelix Fietkau * descriptors cover the full time period. 3616a7022e65SFelix Fietkau */ 3617a7022e65SFelix Fietkau int max_tries = 5; 3618a7022e65SFelix Fietkau 3619a7022e65SFelix Fietkau ieee80211_extend_absent_time(data, tsf, &offset); 3620a7022e65SFelix Fietkau do { 3621a7022e65SFelix Fietkau if (!ieee80211_extend_absent_time(data, tsf, &offset)) 3622a7022e65SFelix Fietkau break; 3623a7022e65SFelix Fietkau 3624a7022e65SFelix Fietkau tries++; 3625a7022e65SFelix Fietkau } while (tries < max_tries); 3626a7022e65SFelix Fietkau 3627a7022e65SFelix Fietkau return offset; 3628a7022e65SFelix Fietkau } 3629a7022e65SFelix Fietkau 3630a7022e65SFelix Fietkau void ieee80211_update_p2p_noa(struct ieee80211_noa_data *data, u32 tsf) 3631a7022e65SFelix Fietkau { 3632a7022e65SFelix Fietkau u32 next_offset = BIT(31) - 1; 3633a7022e65SFelix Fietkau int i; 3634a7022e65SFelix Fietkau 3635a7022e65SFelix Fietkau data->absent = 0; 3636a7022e65SFelix Fietkau data->has_next_tsf = false; 3637a7022e65SFelix Fietkau for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { 3638a7022e65SFelix Fietkau s32 start; 3639a7022e65SFelix Fietkau 3640a7022e65SFelix Fietkau if (!data->count[i]) 3641a7022e65SFelix Fietkau continue; 3642a7022e65SFelix Fietkau 3643a7022e65SFelix Fietkau ieee80211_extend_noa_desc(data, tsf, i); 3644a7022e65SFelix Fietkau start = data->desc[i].start - tsf; 3645a7022e65SFelix Fietkau if (start <= 0) 3646a7022e65SFelix Fietkau data->absent |= BIT(i); 3647a7022e65SFelix Fietkau 3648a7022e65SFelix Fietkau if (next_offset > start) 3649a7022e65SFelix Fietkau next_offset = start; 3650a7022e65SFelix Fietkau 3651a7022e65SFelix Fietkau data->has_next_tsf = true; 3652a7022e65SFelix Fietkau } 3653a7022e65SFelix Fietkau 3654a7022e65SFelix Fietkau if (data->absent) 3655a7022e65SFelix Fietkau next_offset = ieee80211_get_noa_absent_time(data, tsf); 3656a7022e65SFelix Fietkau 3657a7022e65SFelix Fietkau data->next_tsf = tsf + next_offset; 3658a7022e65SFelix Fietkau } 3659a7022e65SFelix Fietkau EXPORT_SYMBOL(ieee80211_update_p2p_noa); 3660a7022e65SFelix Fietkau 3661a7022e65SFelix Fietkau int ieee80211_parse_p2p_noa(const struct ieee80211_p2p_noa_attr *attr, 3662a7022e65SFelix Fietkau struct ieee80211_noa_data *data, u32 tsf) 3663a7022e65SFelix Fietkau { 3664a7022e65SFelix Fietkau int ret = 0; 3665a7022e65SFelix Fietkau int i; 3666a7022e65SFelix Fietkau 3667a7022e65SFelix Fietkau memset(data, 0, sizeof(*data)); 3668a7022e65SFelix Fietkau 3669a7022e65SFelix Fietkau for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { 3670a7022e65SFelix Fietkau const struct ieee80211_p2p_noa_desc *desc = &attr->desc[i]; 3671a7022e65SFelix Fietkau 3672a7022e65SFelix Fietkau if (!desc->count || !desc->duration) 3673a7022e65SFelix Fietkau continue; 3674a7022e65SFelix Fietkau 3675a7022e65SFelix Fietkau data->count[i] = desc->count; 3676a7022e65SFelix Fietkau data->desc[i].start = le32_to_cpu(desc->start_time); 3677a7022e65SFelix Fietkau data->desc[i].duration = le32_to_cpu(desc->duration); 3678a7022e65SFelix Fietkau data->desc[i].interval = le32_to_cpu(desc->interval); 3679a7022e65SFelix Fietkau 3680a7022e65SFelix Fietkau if (data->count[i] > 1 && 3681a7022e65SFelix Fietkau data->desc[i].interval < data->desc[i].duration) 3682a7022e65SFelix Fietkau continue; 3683a7022e65SFelix Fietkau 3684a7022e65SFelix Fietkau ieee80211_extend_noa_desc(data, tsf, i); 3685a7022e65SFelix Fietkau ret++; 3686a7022e65SFelix Fietkau } 3687a7022e65SFelix Fietkau 3688a7022e65SFelix Fietkau if (ret) 3689a7022e65SFelix Fietkau ieee80211_update_p2p_noa(data, tsf); 3690a7022e65SFelix Fietkau 3691a7022e65SFelix Fietkau return ret; 3692a7022e65SFelix Fietkau } 3693a7022e65SFelix Fietkau EXPORT_SYMBOL(ieee80211_parse_p2p_noa); 3694057d5f4bSThomas Pedersen 3695057d5f4bSThomas Pedersen void ieee80211_recalc_dtim(struct ieee80211_local *local, 3696057d5f4bSThomas Pedersen struct ieee80211_sub_if_data *sdata) 3697057d5f4bSThomas Pedersen { 3698057d5f4bSThomas Pedersen u64 tsf = drv_get_tsf(local, sdata); 3699057d5f4bSThomas Pedersen u64 dtim_count = 0; 3700057d5f4bSThomas Pedersen u16 beacon_int = sdata->vif.bss_conf.beacon_int * 1024; 3701057d5f4bSThomas Pedersen u8 dtim_period = sdata->vif.bss_conf.dtim_period; 3702057d5f4bSThomas Pedersen struct ps_data *ps; 3703057d5f4bSThomas Pedersen u8 bcns_from_dtim; 3704057d5f4bSThomas Pedersen 3705057d5f4bSThomas Pedersen if (tsf == -1ULL || !beacon_int || !dtim_period) 3706057d5f4bSThomas Pedersen return; 3707057d5f4bSThomas Pedersen 3708057d5f4bSThomas Pedersen if (sdata->vif.type == NL80211_IFTYPE_AP || 3709057d5f4bSThomas Pedersen sdata->vif.type == NL80211_IFTYPE_AP_VLAN) { 3710057d5f4bSThomas Pedersen if (!sdata->bss) 3711057d5f4bSThomas Pedersen return; 3712057d5f4bSThomas Pedersen 3713057d5f4bSThomas Pedersen ps = &sdata->bss->ps; 3714057d5f4bSThomas Pedersen } else if (ieee80211_vif_is_mesh(&sdata->vif)) { 3715057d5f4bSThomas Pedersen ps = &sdata->u.mesh.ps; 3716057d5f4bSThomas Pedersen } else { 3717057d5f4bSThomas Pedersen return; 3718057d5f4bSThomas Pedersen } 3719057d5f4bSThomas Pedersen 3720057d5f4bSThomas Pedersen /* 3721057d5f4bSThomas Pedersen * actually finds last dtim_count, mac80211 will update in 3722057d5f4bSThomas Pedersen * __beacon_add_tim(). 3723057d5f4bSThomas Pedersen * dtim_count = dtim_period - (tsf / bcn_int) % dtim_period 3724057d5f4bSThomas Pedersen */ 3725057d5f4bSThomas Pedersen do_div(tsf, beacon_int); 3726057d5f4bSThomas Pedersen bcns_from_dtim = do_div(tsf, dtim_period); 3727057d5f4bSThomas Pedersen /* just had a DTIM */ 3728057d5f4bSThomas Pedersen if (!bcns_from_dtim) 3729057d5f4bSThomas Pedersen dtim_count = 0; 3730057d5f4bSThomas Pedersen else 3731057d5f4bSThomas Pedersen dtim_count = dtim_period - bcns_from_dtim; 3732057d5f4bSThomas Pedersen 3733057d5f4bSThomas Pedersen ps->dtim_count = dtim_count; 3734057d5f4bSThomas Pedersen } 373573de86a3SLuciano Coelho 373671e6195eSMichal Kazior static u8 ieee80211_chanctx_radar_detect(struct ieee80211_local *local, 373771e6195eSMichal Kazior struct ieee80211_chanctx *ctx) 373871e6195eSMichal Kazior { 373971e6195eSMichal Kazior struct ieee80211_sub_if_data *sdata; 374071e6195eSMichal Kazior u8 radar_detect = 0; 374171e6195eSMichal Kazior 374271e6195eSMichal Kazior lockdep_assert_held(&local->chanctx_mtx); 374371e6195eSMichal Kazior 374471e6195eSMichal Kazior if (WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED)) 374571e6195eSMichal Kazior return 0; 374671e6195eSMichal Kazior 374771e6195eSMichal Kazior list_for_each_entry(sdata, &ctx->reserved_vifs, reserved_chanctx_list) 374871e6195eSMichal Kazior if (sdata->reserved_radar_required) 374971e6195eSMichal Kazior radar_detect |= BIT(sdata->reserved_chandef.width); 375071e6195eSMichal Kazior 375171e6195eSMichal Kazior /* 375271e6195eSMichal Kazior * An in-place reservation context should not have any assigned vifs 375371e6195eSMichal Kazior * until it replaces the other context. 375471e6195eSMichal Kazior */ 375571e6195eSMichal Kazior WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER && 375671e6195eSMichal Kazior !list_empty(&ctx->assigned_vifs)); 375771e6195eSMichal Kazior 375871e6195eSMichal Kazior list_for_each_entry(sdata, &ctx->assigned_vifs, assigned_chanctx_list) 375971e6195eSMichal Kazior if (sdata->radar_required) 376071e6195eSMichal Kazior radar_detect |= BIT(sdata->vif.bss_conf.chandef.width); 376171e6195eSMichal Kazior 376271e6195eSMichal Kazior return radar_detect; 376371e6195eSMichal Kazior } 376471e6195eSMichal Kazior 376573de86a3SLuciano Coelho int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, 376673de86a3SLuciano Coelho const struct cfg80211_chan_def *chandef, 376773de86a3SLuciano Coelho enum ieee80211_chanctx_mode chanmode, 376873de86a3SLuciano Coelho u8 radar_detect) 376973de86a3SLuciano Coelho { 377073de86a3SLuciano Coelho struct ieee80211_local *local = sdata->local; 377173de86a3SLuciano Coelho struct ieee80211_sub_if_data *sdata_iter; 377273de86a3SLuciano Coelho enum nl80211_iftype iftype = sdata->wdev.iftype; 377373de86a3SLuciano Coelho struct ieee80211_chanctx *ctx; 377473de86a3SLuciano Coelho int total = 1; 3775e227300cSPurushottam Kushwaha struct iface_combination_params params = { 3776e227300cSPurushottam Kushwaha .radar_detect = radar_detect, 3777e227300cSPurushottam Kushwaha }; 377873de86a3SLuciano Coelho 377973de86a3SLuciano Coelho lockdep_assert_held(&local->chanctx_mtx); 378073de86a3SLuciano Coelho 378173de86a3SLuciano Coelho if (WARN_ON(hweight32(radar_detect) > 1)) 378273de86a3SLuciano Coelho return -EINVAL; 378373de86a3SLuciano Coelho 3784b6a55015SLuciano Coelho if (WARN_ON(chandef && chanmode == IEEE80211_CHANCTX_SHARED && 3785b6a55015SLuciano Coelho !chandef->chan)) 378673de86a3SLuciano Coelho return -EINVAL; 378773de86a3SLuciano Coelho 378873de86a3SLuciano Coelho if (WARN_ON(iftype >= NUM_NL80211_IFTYPES)) 378973de86a3SLuciano Coelho return -EINVAL; 379073de86a3SLuciano Coelho 3791ac668afeSJohannes Berg if (sdata->vif.type == NL80211_IFTYPE_AP || 3792ac668afeSJohannes Berg sdata->vif.type == NL80211_IFTYPE_MESH_POINT) { 3793ac668afeSJohannes Berg /* 3794ac668afeSJohannes Berg * always passing this is harmless, since it'll be the 3795ac668afeSJohannes Berg * same value that cfg80211 finds if it finds the same 3796ac668afeSJohannes Berg * interface ... and that's always allowed 3797ac668afeSJohannes Berg */ 3798ac668afeSJohannes Berg params.new_beacon_int = sdata->vif.bss_conf.beacon_int; 3799ac668afeSJohannes Berg } 3800ac668afeSJohannes Berg 380173de86a3SLuciano Coelho /* Always allow software iftypes */ 380233d915d9SManikanta Pubbisetty if (local->hw.wiphy->software_iftypes & BIT(iftype) || 380333d915d9SManikanta Pubbisetty (iftype == NL80211_IFTYPE_AP_VLAN && 380433d915d9SManikanta Pubbisetty local->hw.wiphy->flags & WIPHY_FLAG_4ADDR_AP)) { 380573de86a3SLuciano Coelho if (radar_detect) 380673de86a3SLuciano Coelho return -EINVAL; 380773de86a3SLuciano Coelho return 0; 380873de86a3SLuciano Coelho } 380973de86a3SLuciano Coelho 3810e227300cSPurushottam Kushwaha if (chandef) 3811e227300cSPurushottam Kushwaha params.num_different_channels = 1; 381273de86a3SLuciano Coelho 381373de86a3SLuciano Coelho if (iftype != NL80211_IFTYPE_UNSPECIFIED) 3814e227300cSPurushottam Kushwaha params.iftype_num[iftype] = 1; 381573de86a3SLuciano Coelho 381673de86a3SLuciano Coelho list_for_each_entry(ctx, &local->chanctx_list, list) { 38175bcae31dSMichal Kazior if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) 38185bcae31dSMichal Kazior continue; 3819e227300cSPurushottam Kushwaha params.radar_detect |= 3820e227300cSPurushottam Kushwaha ieee80211_chanctx_radar_detect(local, ctx); 382173de86a3SLuciano Coelho if (ctx->mode == IEEE80211_CHANCTX_EXCLUSIVE) { 3822e227300cSPurushottam Kushwaha params.num_different_channels++; 382373de86a3SLuciano Coelho continue; 382473de86a3SLuciano Coelho } 3825b6a55015SLuciano Coelho if (chandef && chanmode == IEEE80211_CHANCTX_SHARED && 382673de86a3SLuciano Coelho cfg80211_chandef_compatible(chandef, 382773de86a3SLuciano Coelho &ctx->conf.def)) 382873de86a3SLuciano Coelho continue; 3829e227300cSPurushottam Kushwaha params.num_different_channels++; 383073de86a3SLuciano Coelho } 383173de86a3SLuciano Coelho 383273de86a3SLuciano Coelho list_for_each_entry_rcu(sdata_iter, &local->interfaces, list) { 383373de86a3SLuciano Coelho struct wireless_dev *wdev_iter; 383473de86a3SLuciano Coelho 383573de86a3SLuciano Coelho wdev_iter = &sdata_iter->wdev; 383673de86a3SLuciano Coelho 383773de86a3SLuciano Coelho if (sdata_iter == sdata || 38380f611d28SAndrei Otcheretianski !ieee80211_sdata_running(sdata_iter) || 383973de86a3SLuciano Coelho local->hw.wiphy->software_iftypes & BIT(wdev_iter->iftype)) 384073de86a3SLuciano Coelho continue; 384173de86a3SLuciano Coelho 3842e227300cSPurushottam Kushwaha params.iftype_num[wdev_iter->iftype]++; 384373de86a3SLuciano Coelho total++; 384473de86a3SLuciano Coelho } 384573de86a3SLuciano Coelho 3846e227300cSPurushottam Kushwaha if (total == 1 && !params.radar_detect) 384773de86a3SLuciano Coelho return 0; 384873de86a3SLuciano Coelho 3849e227300cSPurushottam Kushwaha return cfg80211_check_combinations(local->hw.wiphy, ¶ms); 385073de86a3SLuciano Coelho } 38516fa001bcSMichal Kazior 38526fa001bcSMichal Kazior static void 38536fa001bcSMichal Kazior ieee80211_iter_max_chans(const struct ieee80211_iface_combination *c, 38546fa001bcSMichal Kazior void *data) 38556fa001bcSMichal Kazior { 38566fa001bcSMichal Kazior u32 *max_num_different_channels = data; 38576fa001bcSMichal Kazior 38586fa001bcSMichal Kazior *max_num_different_channels = max(*max_num_different_channels, 38596fa001bcSMichal Kazior c->num_different_channels); 38606fa001bcSMichal Kazior } 38616fa001bcSMichal Kazior 38626fa001bcSMichal Kazior int ieee80211_max_num_channels(struct ieee80211_local *local) 38636fa001bcSMichal Kazior { 38646fa001bcSMichal Kazior struct ieee80211_sub_if_data *sdata; 38656fa001bcSMichal Kazior struct ieee80211_chanctx *ctx; 38666fa001bcSMichal Kazior u32 max_num_different_channels = 1; 38676fa001bcSMichal Kazior int err; 3868e227300cSPurushottam Kushwaha struct iface_combination_params params = {0}; 38696fa001bcSMichal Kazior 38706fa001bcSMichal Kazior lockdep_assert_held(&local->chanctx_mtx); 38716fa001bcSMichal Kazior 38726fa001bcSMichal Kazior list_for_each_entry(ctx, &local->chanctx_list, list) { 38735bcae31dSMichal Kazior if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) 38745bcae31dSMichal Kazior continue; 38755bcae31dSMichal Kazior 3876e227300cSPurushottam Kushwaha params.num_different_channels++; 38776fa001bcSMichal Kazior 3878e227300cSPurushottam Kushwaha params.radar_detect |= 3879e227300cSPurushottam Kushwaha ieee80211_chanctx_radar_detect(local, ctx); 38806fa001bcSMichal Kazior } 38816fa001bcSMichal Kazior 38826fa001bcSMichal Kazior list_for_each_entry_rcu(sdata, &local->interfaces, list) 3883e227300cSPurushottam Kushwaha params.iftype_num[sdata->wdev.iftype]++; 38846fa001bcSMichal Kazior 3885e227300cSPurushottam Kushwaha err = cfg80211_iter_combinations(local->hw.wiphy, ¶ms, 3886e227300cSPurushottam Kushwaha ieee80211_iter_max_chans, 38876fa001bcSMichal Kazior &max_num_different_channels); 38886fa001bcSMichal Kazior if (err < 0) 38896fa001bcSMichal Kazior return err; 38906fa001bcSMichal Kazior 38916fa001bcSMichal Kazior return max_num_different_channels; 38926fa001bcSMichal Kazior } 389340b861a0SArik Nemtsov 389440b861a0SArik Nemtsov u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo) 389540b861a0SArik Nemtsov { 389640b861a0SArik Nemtsov *buf++ = WLAN_EID_VENDOR_SPECIFIC; 389740b861a0SArik Nemtsov *buf++ = 7; /* len */ 389840b861a0SArik Nemtsov *buf++ = 0x00; /* Microsoft OUI 00:50:F2 */ 389940b861a0SArik Nemtsov *buf++ = 0x50; 390040b861a0SArik Nemtsov *buf++ = 0xf2; 390140b861a0SArik Nemtsov *buf++ = 2; /* WME */ 390240b861a0SArik Nemtsov *buf++ = 0; /* WME info */ 390340b861a0SArik Nemtsov *buf++ = 1; /* WME ver */ 390440b861a0SArik Nemtsov *buf++ = qosinfo; /* U-APSD no in use */ 390540b861a0SArik Nemtsov 390640b861a0SArik Nemtsov return buf; 390740b861a0SArik Nemtsov } 3908ba8c3d6fSFelix Fietkau 3909f2ac7e30SMichal Kazior void ieee80211_txq_get_depth(struct ieee80211_txq *txq, 3910f2ac7e30SMichal Kazior unsigned long *frame_cnt, 3911f2ac7e30SMichal Kazior unsigned long *byte_cnt) 3912f2ac7e30SMichal Kazior { 3913f2ac7e30SMichal Kazior struct txq_info *txqi = to_txq_info(txq); 3914bb42f2d1SToke Høiland-Jørgensen u32 frag_cnt = 0, frag_bytes = 0; 3915bb42f2d1SToke Høiland-Jørgensen struct sk_buff *skb; 3916bb42f2d1SToke Høiland-Jørgensen 3917bb42f2d1SToke Høiland-Jørgensen skb_queue_walk(&txqi->frags, skb) { 3918bb42f2d1SToke Høiland-Jørgensen frag_cnt++; 3919bb42f2d1SToke Høiland-Jørgensen frag_bytes += skb->len; 3920bb42f2d1SToke Høiland-Jørgensen } 3921f2ac7e30SMichal Kazior 3922f2ac7e30SMichal Kazior if (frame_cnt) 3923bb42f2d1SToke Høiland-Jørgensen *frame_cnt = txqi->tin.backlog_packets + frag_cnt; 3924f2ac7e30SMichal Kazior 3925f2ac7e30SMichal Kazior if (byte_cnt) 3926bb42f2d1SToke Høiland-Jørgensen *byte_cnt = txqi->tin.backlog_bytes + frag_bytes; 3927f2ac7e30SMichal Kazior } 3928f2ac7e30SMichal Kazior EXPORT_SYMBOL(ieee80211_txq_get_depth); 3929f438ceb8SEmmanuel Grumbach 3930f438ceb8SEmmanuel Grumbach const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS] = { 3931f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_VO, 3932f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_VI, 3933f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_BE, 3934f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_BK 3935f438ceb8SEmmanuel Grumbach }; 3936