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 8e552af05SHaim Dreyfuss * Copyright (C) 2018 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 89435d865afSJohannes Berg u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, 895dd76986bSJohannes Berg struct ieee802_11_elems *elems, 896dd76986bSJohannes Berg u64 filter, u32 crc) 897dd76986bSJohannes Berg { 898dd76986bSJohannes Berg size_t left = len; 89935d865afSJohannes Berg const u8 *pos = start; 900dd76986bSJohannes Berg bool calc_crc = filter != 0; 901fcff4f10SPaul Stewart DECLARE_BITMAP(seen_elems, 256); 902b2e506bfSJohannes Berg const u8 *ie; 903dd76986bSJohannes Berg 904fcff4f10SPaul Stewart bitmap_zero(seen_elems, 256); 905dd76986bSJohannes Berg memset(elems, 0, sizeof(*elems)); 906dd76986bSJohannes Berg elems->ie_start = start; 907dd76986bSJohannes Berg elems->total_len = len; 908dd76986bSJohannes Berg 909dd76986bSJohannes Berg while (left >= 2) { 910dd76986bSJohannes Berg u8 id, elen; 911fcff4f10SPaul Stewart bool elem_parse_failed; 912dd76986bSJohannes Berg 913dd76986bSJohannes Berg id = *pos++; 914dd76986bSJohannes Berg elen = *pos++; 915dd76986bSJohannes Berg left -= 2; 916dd76986bSJohannes Berg 917fcff4f10SPaul Stewart if (elen > left) { 918fcff4f10SPaul Stewart elems->parse_error = true; 919dd76986bSJohannes Berg break; 920fcff4f10SPaul Stewart } 921fcff4f10SPaul Stewart 9229690fb16SJohannes Berg switch (id) { 9239690fb16SJohannes Berg case WLAN_EID_SSID: 9249690fb16SJohannes Berg case WLAN_EID_SUPP_RATES: 9259690fb16SJohannes Berg case WLAN_EID_FH_PARAMS: 9269690fb16SJohannes Berg case WLAN_EID_DS_PARAMS: 9279690fb16SJohannes Berg case WLAN_EID_CF_PARAMS: 9289690fb16SJohannes Berg case WLAN_EID_TIM: 9299690fb16SJohannes Berg case WLAN_EID_IBSS_PARAMS: 9309690fb16SJohannes Berg case WLAN_EID_CHALLENGE: 9319690fb16SJohannes Berg case WLAN_EID_RSN: 9329690fb16SJohannes Berg case WLAN_EID_ERP_INFO: 9339690fb16SJohannes Berg case WLAN_EID_EXT_SUPP_RATES: 9349690fb16SJohannes Berg case WLAN_EID_HT_CAPABILITY: 9359690fb16SJohannes Berg case WLAN_EID_HT_OPERATION: 9369690fb16SJohannes Berg case WLAN_EID_VHT_CAPABILITY: 9379690fb16SJohannes Berg case WLAN_EID_VHT_OPERATION: 9389690fb16SJohannes Berg case WLAN_EID_MESH_ID: 9399690fb16SJohannes Berg case WLAN_EID_MESH_CONFIG: 9409690fb16SJohannes Berg case WLAN_EID_PEER_MGMT: 9419690fb16SJohannes Berg case WLAN_EID_PREQ: 9429690fb16SJohannes Berg case WLAN_EID_PREP: 9439690fb16SJohannes Berg case WLAN_EID_PERR: 9449690fb16SJohannes Berg case WLAN_EID_RANN: 9459690fb16SJohannes Berg case WLAN_EID_CHANNEL_SWITCH: 9469690fb16SJohannes Berg case WLAN_EID_EXT_CHANSWITCH_ANN: 9479690fb16SJohannes Berg case WLAN_EID_COUNTRY: 9489690fb16SJohannes Berg case WLAN_EID_PWR_CONSTRAINT: 9499690fb16SJohannes Berg case WLAN_EID_TIMEOUT_INTERVAL: 95085220d71SJohannes Berg case WLAN_EID_SECONDARY_CHANNEL_OFFSET: 951b2e506bfSJohannes Berg case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: 9528f2535b9SChun-Yeow Yeoh case WLAN_EID_CHAN_SWITCH_PARAM: 9539041c1faSArik Nemtsov case WLAN_EID_EXT_CAPABILITY: 95453837584SArik Nemtsov case WLAN_EID_CHAN_SWITCH_TIMING: 95553837584SArik Nemtsov case WLAN_EID_LINK_ID: 956e38a017bSAvraham Stern case WLAN_EID_BSS_MAX_IDLE_PERIOD: 957b2e506bfSJohannes Berg /* 958b2e506bfSJohannes Berg * not listing WLAN_EID_CHANNEL_SWITCH_WRAPPER -- it seems possible 959b2e506bfSJohannes Berg * that if the content gets bigger it might be needed more than once 960b2e506bfSJohannes Berg */ 9619690fb16SJohannes Berg if (test_bit(id, seen_elems)) { 962fcff4f10SPaul Stewart elems->parse_error = true; 963fcff4f10SPaul Stewart left -= elen; 964fcff4f10SPaul Stewart pos += elen; 965fcff4f10SPaul Stewart continue; 966fcff4f10SPaul Stewart } 9679690fb16SJohannes Berg break; 9689690fb16SJohannes Berg } 969dd76986bSJohannes Berg 970dd76986bSJohannes Berg if (calc_crc && id < 64 && (filter & (1ULL << id))) 971dd76986bSJohannes Berg crc = crc32_be(crc, pos - 2, elen + 2); 972dd76986bSJohannes Berg 973fcff4f10SPaul Stewart elem_parse_failed = false; 974fcff4f10SPaul Stewart 975dd76986bSJohannes Berg switch (id) { 97653837584SArik Nemtsov case WLAN_EID_LINK_ID: 97753837584SArik Nemtsov if (elen + 2 != sizeof(struct ieee80211_tdls_lnkie)) { 97853837584SArik Nemtsov elem_parse_failed = true; 97953837584SArik Nemtsov break; 98053837584SArik Nemtsov } 98153837584SArik Nemtsov elems->lnk_id = (void *)(pos - 2); 98253837584SArik Nemtsov break; 98353837584SArik Nemtsov case WLAN_EID_CHAN_SWITCH_TIMING: 98453837584SArik Nemtsov if (elen != sizeof(struct ieee80211_ch_switch_timing)) { 98553837584SArik Nemtsov elem_parse_failed = true; 98653837584SArik Nemtsov break; 98753837584SArik Nemtsov } 98853837584SArik Nemtsov elems->ch_sw_timing = (void *)pos; 98953837584SArik Nemtsov break; 9909041c1faSArik Nemtsov case WLAN_EID_EXT_CAPABILITY: 9919041c1faSArik Nemtsov elems->ext_capab = pos; 9929041c1faSArik Nemtsov elems->ext_capab_len = elen; 9939041c1faSArik Nemtsov break; 994dd76986bSJohannes Berg case WLAN_EID_SSID: 995dd76986bSJohannes Berg elems->ssid = pos; 996dd76986bSJohannes Berg elems->ssid_len = elen; 997dd76986bSJohannes Berg break; 998dd76986bSJohannes Berg case WLAN_EID_SUPP_RATES: 999dd76986bSJohannes Berg elems->supp_rates = pos; 1000dd76986bSJohannes Berg elems->supp_rates_len = elen; 1001dd76986bSJohannes Berg break; 1002dd76986bSJohannes Berg case WLAN_EID_DS_PARAMS: 10031cd8e88eSJohannes Berg if (elen >= 1) 1004dd76986bSJohannes Berg elems->ds_params = pos; 10051cd8e88eSJohannes Berg else 10061cd8e88eSJohannes Berg elem_parse_failed = true; 1007dd76986bSJohannes Berg break; 1008dd76986bSJohannes Berg case WLAN_EID_TIM: 1009dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_tim_ie)) { 1010dd76986bSJohannes Berg elems->tim = (void *)pos; 1011dd76986bSJohannes Berg elems->tim_len = elen; 1012fcff4f10SPaul Stewart } else 1013fcff4f10SPaul Stewart elem_parse_failed = true; 1014dd76986bSJohannes Berg break; 1015dd76986bSJohannes Berg case WLAN_EID_CHALLENGE: 1016dd76986bSJohannes Berg elems->challenge = pos; 1017dd76986bSJohannes Berg elems->challenge_len = elen; 1018dd76986bSJohannes Berg break; 1019dd76986bSJohannes Berg case WLAN_EID_VENDOR_SPECIFIC: 1020dd76986bSJohannes Berg if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 && 1021dd76986bSJohannes Berg pos[2] == 0xf2) { 1022dd76986bSJohannes Berg /* Microsoft OUI (00:50:F2) */ 1023dd76986bSJohannes Berg 1024dd76986bSJohannes Berg if (calc_crc) 1025dd76986bSJohannes Berg crc = crc32_be(crc, pos - 2, elen + 2); 1026dd76986bSJohannes Berg 1027441a33baSJohannes Berg if (elen >= 5 && pos[3] == 2) { 1028dd76986bSJohannes Berg /* OUI Type 2 - WMM IE */ 1029dd76986bSJohannes Berg if (pos[4] == 0) { 1030dd76986bSJohannes Berg elems->wmm_info = pos; 1031dd76986bSJohannes Berg elems->wmm_info_len = elen; 1032dd76986bSJohannes Berg } else if (pos[4] == 1) { 1033dd76986bSJohannes Berg elems->wmm_param = pos; 1034dd76986bSJohannes Berg elems->wmm_param_len = elen; 1035dd76986bSJohannes Berg } 1036dd76986bSJohannes Berg } 1037dd76986bSJohannes Berg } 1038dd76986bSJohannes Berg break; 1039dd76986bSJohannes Berg case WLAN_EID_RSN: 1040dd76986bSJohannes Berg elems->rsn = pos; 1041dd76986bSJohannes Berg elems->rsn_len = elen; 1042dd76986bSJohannes Berg break; 1043dd76986bSJohannes Berg case WLAN_EID_ERP_INFO: 10441946bed9SJohannes Berg if (elen >= 1) 1045dd76986bSJohannes Berg elems->erp_info = pos; 10461946bed9SJohannes Berg else 10471946bed9SJohannes Berg elem_parse_failed = true; 1048dd76986bSJohannes Berg break; 1049dd76986bSJohannes Berg case WLAN_EID_EXT_SUPP_RATES: 1050dd76986bSJohannes Berg elems->ext_supp_rates = pos; 1051dd76986bSJohannes Berg elems->ext_supp_rates_len = elen; 1052dd76986bSJohannes Berg break; 1053dd76986bSJohannes Berg case WLAN_EID_HT_CAPABILITY: 1054dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_ht_cap)) 1055dd76986bSJohannes Berg elems->ht_cap_elem = (void *)pos; 1056fcff4f10SPaul Stewart else 1057fcff4f10SPaul Stewart elem_parse_failed = true; 1058dd76986bSJohannes Berg break; 1059074d46d1SJohannes Berg case WLAN_EID_HT_OPERATION: 1060074d46d1SJohannes Berg if (elen >= sizeof(struct ieee80211_ht_operation)) 1061074d46d1SJohannes Berg elems->ht_operation = (void *)pos; 1062fcff4f10SPaul Stewart else 1063fcff4f10SPaul Stewart elem_parse_failed = true; 1064dd76986bSJohannes Berg break; 1065818255eaSMahesh Palivela case WLAN_EID_VHT_CAPABILITY: 1066818255eaSMahesh Palivela if (elen >= sizeof(struct ieee80211_vht_cap)) 1067818255eaSMahesh Palivela elems->vht_cap_elem = (void *)pos; 1068818255eaSMahesh Palivela else 1069818255eaSMahesh Palivela elem_parse_failed = true; 1070818255eaSMahesh Palivela break; 1071818255eaSMahesh Palivela case WLAN_EID_VHT_OPERATION: 1072818255eaSMahesh Palivela if (elen >= sizeof(struct ieee80211_vht_operation)) 1073818255eaSMahesh Palivela elems->vht_operation = (void *)pos; 1074818255eaSMahesh Palivela else 1075818255eaSMahesh Palivela elem_parse_failed = true; 1076818255eaSMahesh Palivela break; 1077bee7f586SJohannes Berg case WLAN_EID_OPMODE_NOTIF: 1078bee7f586SJohannes Berg if (elen > 0) 1079bee7f586SJohannes Berg elems->opmode_notif = pos; 1080bee7f586SJohannes Berg else 1081bee7f586SJohannes Berg elem_parse_failed = true; 1082bee7f586SJohannes Berg break; 1083dd76986bSJohannes Berg case WLAN_EID_MESH_ID: 1084dd76986bSJohannes Berg elems->mesh_id = pos; 1085dd76986bSJohannes Berg elems->mesh_id_len = elen; 1086dd76986bSJohannes Berg break; 1087dd76986bSJohannes Berg case WLAN_EID_MESH_CONFIG: 1088dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_meshconf_ie)) 1089dd76986bSJohannes Berg elems->mesh_config = (void *)pos; 1090fcff4f10SPaul Stewart else 1091fcff4f10SPaul Stewart elem_parse_failed = true; 1092dd76986bSJohannes Berg break; 1093dd76986bSJohannes Berg case WLAN_EID_PEER_MGMT: 1094dd76986bSJohannes Berg elems->peering = pos; 1095dd76986bSJohannes Berg elems->peering_len = elen; 1096dd76986bSJohannes Berg break; 10973f52b7e3SMarco Porsch case WLAN_EID_MESH_AWAKE_WINDOW: 10983f52b7e3SMarco Porsch if (elen >= 2) 10993f52b7e3SMarco Porsch elems->awake_window = (void *)pos; 11003f52b7e3SMarco Porsch break; 1101dd76986bSJohannes Berg case WLAN_EID_PREQ: 1102dd76986bSJohannes Berg elems->preq = pos; 1103dd76986bSJohannes Berg elems->preq_len = elen; 1104dd76986bSJohannes Berg break; 1105dd76986bSJohannes Berg case WLAN_EID_PREP: 1106dd76986bSJohannes Berg elems->prep = pos; 1107dd76986bSJohannes Berg elems->prep_len = elen; 1108dd76986bSJohannes Berg break; 1109dd76986bSJohannes Berg case WLAN_EID_PERR: 1110dd76986bSJohannes Berg elems->perr = pos; 1111dd76986bSJohannes Berg elems->perr_len = elen; 1112dd76986bSJohannes Berg break; 1113dd76986bSJohannes Berg case WLAN_EID_RANN: 1114dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_rann_ie)) 1115dd76986bSJohannes Berg elems->rann = (void *)pos; 1116fcff4f10SPaul Stewart else 1117fcff4f10SPaul Stewart elem_parse_failed = true; 1118dd76986bSJohannes Berg break; 1119dd76986bSJohannes Berg case WLAN_EID_CHANNEL_SWITCH: 11205bc1420bSJohannes Berg if (elen != sizeof(struct ieee80211_channel_sw_ie)) { 11215bc1420bSJohannes Berg elem_parse_failed = true; 11225bc1420bSJohannes Berg break; 11235bc1420bSJohannes Berg } 11245bc1420bSJohannes Berg elems->ch_switch_ie = (void *)pos; 1125dd76986bSJohannes Berg break; 1126b4f286a1SJohannes Berg case WLAN_EID_EXT_CHANSWITCH_ANN: 1127b4f286a1SJohannes Berg if (elen != sizeof(struct ieee80211_ext_chansw_ie)) { 1128b4f286a1SJohannes Berg elem_parse_failed = true; 1129b4f286a1SJohannes Berg break; 1130b4f286a1SJohannes Berg } 1131b4f286a1SJohannes Berg elems->ext_chansw_ie = (void *)pos; 1132b4f286a1SJohannes Berg break; 113385220d71SJohannes Berg case WLAN_EID_SECONDARY_CHANNEL_OFFSET: 113485220d71SJohannes Berg if (elen != sizeof(struct ieee80211_sec_chan_offs_ie)) { 113585220d71SJohannes Berg elem_parse_failed = true; 113685220d71SJohannes Berg break; 113785220d71SJohannes Berg } 113885220d71SJohannes Berg elems->sec_chan_offs = (void *)pos; 113985220d71SJohannes Berg break; 11408f2535b9SChun-Yeow Yeoh case WLAN_EID_CHAN_SWITCH_PARAM: 11418f2535b9SChun-Yeow Yeoh if (elen != 11428f2535b9SChun-Yeow Yeoh sizeof(*elems->mesh_chansw_params_ie)) { 11438f2535b9SChun-Yeow Yeoh elem_parse_failed = true; 11448f2535b9SChun-Yeow Yeoh break; 11458f2535b9SChun-Yeow Yeoh } 11468f2535b9SChun-Yeow Yeoh elems->mesh_chansw_params_ie = (void *)pos; 11478f2535b9SChun-Yeow Yeoh break; 1148b2e506bfSJohannes Berg case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: 1149b2e506bfSJohannes Berg if (!action || 1150b2e506bfSJohannes Berg elen != sizeof(*elems->wide_bw_chansw_ie)) { 1151b2e506bfSJohannes Berg elem_parse_failed = true; 1152b2e506bfSJohannes Berg break; 1153b2e506bfSJohannes Berg } 1154b2e506bfSJohannes Berg elems->wide_bw_chansw_ie = (void *)pos; 1155b2e506bfSJohannes Berg break; 1156b2e506bfSJohannes Berg case WLAN_EID_CHANNEL_SWITCH_WRAPPER: 1157b2e506bfSJohannes Berg if (action) { 1158b2e506bfSJohannes Berg elem_parse_failed = true; 1159b2e506bfSJohannes Berg break; 1160b2e506bfSJohannes Berg } 1161b2e506bfSJohannes Berg /* 1162b2e506bfSJohannes Berg * This is a bit tricky, but as we only care about 1163b2e506bfSJohannes Berg * the wide bandwidth channel switch element, so 1164b2e506bfSJohannes Berg * just parse it out manually. 1165b2e506bfSJohannes Berg */ 1166b2e506bfSJohannes Berg ie = cfg80211_find_ie(WLAN_EID_WIDE_BW_CHANNEL_SWITCH, 1167b2e506bfSJohannes Berg pos, elen); 1168b2e506bfSJohannes Berg if (ie) { 1169b2e506bfSJohannes Berg if (ie[1] == sizeof(*elems->wide_bw_chansw_ie)) 1170b2e506bfSJohannes Berg elems->wide_bw_chansw_ie = 1171b2e506bfSJohannes Berg (void *)(ie + 2); 1172b2e506bfSJohannes Berg else 1173b2e506bfSJohannes Berg elem_parse_failed = true; 1174b2e506bfSJohannes Berg } 1175b2e506bfSJohannes Berg break; 1176dd76986bSJohannes Berg case WLAN_EID_COUNTRY: 1177dd76986bSJohannes Berg elems->country_elem = pos; 1178dd76986bSJohannes Berg elems->country_elem_len = elen; 1179dd76986bSJohannes Berg break; 1180dd76986bSJohannes Berg case WLAN_EID_PWR_CONSTRAINT: 1181761a48d2SJohannes Berg if (elen != 1) { 1182761a48d2SJohannes Berg elem_parse_failed = true; 1183761a48d2SJohannes Berg break; 1184761a48d2SJohannes Berg } 1185dd76986bSJohannes Berg elems->pwr_constr_elem = pos; 1186dd76986bSJohannes Berg break; 1187c8d65917SSteinar H. Gunderson case WLAN_EID_CISCO_VENDOR_SPECIFIC: 1188c8d65917SSteinar H. Gunderson /* Lots of different options exist, but we only care 1189c8d65917SSteinar H. Gunderson * about the Dynamic Transmit Power Control element. 1190c8d65917SSteinar H. Gunderson * First check for the Cisco OUI, then for the DTPC 1191c8d65917SSteinar H. Gunderson * tag (0x00). 1192c8d65917SSteinar H. Gunderson */ 1193c8d65917SSteinar H. Gunderson if (elen < 4) { 1194c8d65917SSteinar H. Gunderson elem_parse_failed = true; 1195c8d65917SSteinar H. Gunderson break; 1196c8d65917SSteinar H. Gunderson } 1197c8d65917SSteinar H. Gunderson 1198c8d65917SSteinar H. Gunderson if (pos[0] != 0x00 || pos[1] != 0x40 || 1199c8d65917SSteinar H. Gunderson pos[2] != 0x96 || pos[3] != 0x00) 1200c8d65917SSteinar H. Gunderson break; 1201c8d65917SSteinar H. Gunderson 1202c8d65917SSteinar H. Gunderson if (elen != 6) { 1203c8d65917SSteinar H. Gunderson elem_parse_failed = true; 1204c8d65917SSteinar H. Gunderson break; 1205c8d65917SSteinar H. Gunderson } 1206c8d65917SSteinar H. Gunderson 1207c8d65917SSteinar H. Gunderson if (calc_crc) 1208c8d65917SSteinar H. Gunderson crc = crc32_be(crc, pos - 2, elen + 2); 1209c8d65917SSteinar H. Gunderson 1210c8d65917SSteinar H. Gunderson elems->cisco_dtpc_elem = pos; 1211c8d65917SSteinar H. Gunderson break; 1212dd76986bSJohannes Berg case WLAN_EID_TIMEOUT_INTERVAL: 121379ba1d89SJohannes Berg if (elen >= sizeof(struct ieee80211_timeout_interval_ie)) 121479ba1d89SJohannes Berg elems->timeout_int = (void *)pos; 121579ba1d89SJohannes Berg else 121679ba1d89SJohannes Berg elem_parse_failed = true; 1217dd76986bSJohannes Berg break; 1218e38a017bSAvraham Stern case WLAN_EID_BSS_MAX_IDLE_PERIOD: 1219e38a017bSAvraham Stern if (elen >= sizeof(*elems->max_idle_period_ie)) 1220e38a017bSAvraham Stern elems->max_idle_period_ie = (void *)pos; 1221e38a017bSAvraham Stern break; 122241cbb0f5SLuca Coelho case WLAN_EID_EXTENSION: 122341cbb0f5SLuca Coelho if (pos[0] == WLAN_EID_EXT_HE_MU_EDCA && 122441cbb0f5SLuca Coelho elen >= (sizeof(*elems->mu_edca_param_set) + 1)) { 122541cbb0f5SLuca Coelho elems->mu_edca_param_set = (void *)&pos[1]; 12262e249fc3SShaul Triebitz if (calc_crc) 12272e249fc3SShaul Triebitz crc = crc32_be(crc, pos - 2, elen + 2); 122841cbb0f5SLuca Coelho } else if (pos[0] == WLAN_EID_EXT_HE_CAPABILITY) { 122941cbb0f5SLuca Coelho elems->he_cap = (void *)&pos[1]; 123041cbb0f5SLuca Coelho elems->he_cap_len = elen - 1; 123141cbb0f5SLuca Coelho } else if (pos[0] == WLAN_EID_EXT_HE_OPERATION && 123241cbb0f5SLuca Coelho elen >= sizeof(*elems->he_operation) && 123341cbb0f5SLuca Coelho elen >= ieee80211_he_oper_size(&pos[1])) { 123441cbb0f5SLuca Coelho elems->he_operation = (void *)&pos[1]; 123541cbb0f5SLuca Coelho } else if (pos[0] == WLAN_EID_EXT_UORA && elen >= 1) { 123641cbb0f5SLuca Coelho elems->uora_element = (void *)&pos[1]; 123741cbb0f5SLuca Coelho } 123841cbb0f5SLuca Coelho break; 1239dd76986bSJohannes Berg default: 1240dd76986bSJohannes Berg break; 1241dd76986bSJohannes Berg } 1242dd76986bSJohannes Berg 1243fcff4f10SPaul Stewart if (elem_parse_failed) 1244fcff4f10SPaul Stewart elems->parse_error = true; 1245fcff4f10SPaul Stewart else 12465df45690SJohannes Berg __set_bit(id, seen_elems); 1247fcff4f10SPaul Stewart 1248dd76986bSJohannes Berg left -= elen; 1249dd76986bSJohannes Berg pos += elen; 1250dd76986bSJohannes Berg } 1251dd76986bSJohannes Berg 1252fcff4f10SPaul Stewart if (left != 0) 1253fcff4f10SPaul Stewart elems->parse_error = true; 1254fcff4f10SPaul Stewart 1255dd76986bSJohannes Berg return crc; 1256dd76986bSJohannes Berg } 1257dd76986bSJohannes Berg 1258e552af05SHaim Dreyfuss void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, 1259e552af05SHaim Dreyfuss struct ieee80211_tx_queue_params 1260e552af05SHaim Dreyfuss *qparam, int ac) 1261e552af05SHaim Dreyfuss { 1262e552af05SHaim Dreyfuss struct ieee80211_chanctx_conf *chanctx_conf; 1263e552af05SHaim Dreyfuss const struct ieee80211_reg_rule *rrule; 126438cb87eeSStanislaw Gruszka const struct ieee80211_wmm_ac *wmm_ac; 1265e552af05SHaim Dreyfuss u16 center_freq = 0; 1266e552af05SHaim Dreyfuss 1267e552af05SHaim Dreyfuss if (sdata->vif.type != NL80211_IFTYPE_AP && 1268e552af05SHaim Dreyfuss sdata->vif.type != NL80211_IFTYPE_STATION) 1269e552af05SHaim Dreyfuss return; 1270e552af05SHaim Dreyfuss 1271e552af05SHaim Dreyfuss rcu_read_lock(); 1272e552af05SHaim Dreyfuss chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 1273e552af05SHaim Dreyfuss if (chanctx_conf) 1274e552af05SHaim Dreyfuss center_freq = chanctx_conf->def.chan->center_freq; 1275e552af05SHaim Dreyfuss 1276e552af05SHaim Dreyfuss if (!center_freq) { 1277e552af05SHaim Dreyfuss rcu_read_unlock(); 1278e552af05SHaim Dreyfuss return; 1279e552af05SHaim Dreyfuss } 1280e552af05SHaim Dreyfuss 1281e552af05SHaim Dreyfuss rrule = freq_reg_info(sdata->wdev.wiphy, MHZ_TO_KHZ(center_freq)); 1282e552af05SHaim Dreyfuss 128338cb87eeSStanislaw Gruszka if (IS_ERR_OR_NULL(rrule) || !rrule->has_wmm) { 1284e552af05SHaim Dreyfuss rcu_read_unlock(); 1285e552af05SHaim Dreyfuss return; 1286e552af05SHaim Dreyfuss } 1287e552af05SHaim Dreyfuss 1288e552af05SHaim Dreyfuss if (sdata->vif.type == NL80211_IFTYPE_AP) 128938cb87eeSStanislaw Gruszka wmm_ac = &rrule->wmm_rule.ap[ac]; 1290e552af05SHaim Dreyfuss else 129138cb87eeSStanislaw Gruszka wmm_ac = &rrule->wmm_rule.client[ac]; 1292e552af05SHaim Dreyfuss qparam->cw_min = max_t(u16, qparam->cw_min, wmm_ac->cw_min); 1293e552af05SHaim Dreyfuss qparam->cw_max = max_t(u16, qparam->cw_max, wmm_ac->cw_max); 1294e552af05SHaim Dreyfuss qparam->aifs = max_t(u8, qparam->aifs, wmm_ac->aifsn); 1295abd76d25SDreyfuss, Haim qparam->txop = min_t(u16, qparam->txop, wmm_ac->cot / 32); 1296e552af05SHaim Dreyfuss rcu_read_unlock(); 1297e552af05SHaim Dreyfuss } 1298e552af05SHaim Dreyfuss 12993abead59SJohannes Berg void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, 1300cec66283SJohannes Berg bool bss_notify, bool enable_qos) 13015825fe10SJohannes Berg { 13025825fe10SJohannes Berg struct ieee80211_local *local = sdata->local; 13035825fe10SJohannes Berg struct ieee80211_tx_queue_params qparam; 130455de908aSJohannes Berg struct ieee80211_chanctx_conf *chanctx_conf; 130554bcbc69SJohannes Berg int ac; 1306cec66283SJohannes Berg bool use_11b; 1307239281f8SRostislav Lisovy bool is_ocb; /* Use another EDCA parameters if dot11OCBActivated=true */ 1308aa837e1dSJohannes Berg int aCWmin, aCWmax; 13095825fe10SJohannes Berg 13105825fe10SJohannes Berg if (!local->ops->conf_tx) 13115825fe10SJohannes Berg return; 13125825fe10SJohannes Berg 131354bcbc69SJohannes Berg if (local->hw.queues < IEEE80211_NUM_ACS) 131454bcbc69SJohannes Berg return; 131554bcbc69SJohannes Berg 13165825fe10SJohannes Berg memset(&qparam, 0, sizeof(qparam)); 13175825fe10SJohannes Berg 131855de908aSJohannes Berg rcu_read_lock(); 131955de908aSJohannes Berg chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 132055de908aSJohannes Berg use_11b = (chanctx_conf && 132157fbcce3SJohannes Berg chanctx_conf->def.chan->band == NL80211_BAND_2GHZ) && 1322aa837e1dSJohannes Berg !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE); 132355de908aSJohannes Berg rcu_read_unlock(); 13245825fe10SJohannes Berg 1325239281f8SRostislav Lisovy is_ocb = (sdata->vif.type == NL80211_IFTYPE_OCB); 1326239281f8SRostislav Lisovy 1327aa837e1dSJohannes Berg /* Set defaults according to 802.11-2007 Table 7-37 */ 1328aa837e1dSJohannes Berg aCWmax = 1023; 1329aa837e1dSJohannes Berg if (use_11b) 1330aa837e1dSJohannes Berg aCWmin = 31; 13315825fe10SJohannes Berg else 1332aa837e1dSJohannes Berg aCWmin = 15; 13335825fe10SJohannes Berg 13341f4ffde8SFred Zhou /* Confiure old 802.11b/g medium access rules. */ 13351f4ffde8SFred Zhou qparam.cw_max = aCWmax; 13361f4ffde8SFred Zhou qparam.cw_min = aCWmin; 13371f4ffde8SFred Zhou qparam.txop = 0; 13381f4ffde8SFred Zhou qparam.aifs = 2; 13391f4ffde8SFred Zhou 13401f4ffde8SFred Zhou for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 13411f4ffde8SFred Zhou /* Update if QoS is enabled. */ 1342a8ce8544SStanislaw Gruszka if (enable_qos) { 134354bcbc69SJohannes Berg switch (ac) { 13441d98fb12SJohannes Berg case IEEE80211_AC_BK: 13457ba10a8eSJohannes Berg qparam.cw_max = aCWmax; 13467ba10a8eSJohannes Berg qparam.cw_min = aCWmin; 13475825fe10SJohannes Berg qparam.txop = 0; 1348239281f8SRostislav Lisovy if (is_ocb) 1349239281f8SRostislav Lisovy qparam.aifs = 9; 1350239281f8SRostislav Lisovy else 1351aa837e1dSJohannes Berg qparam.aifs = 7; 1352aa837e1dSJohannes Berg break; 1353a8ce8544SStanislaw Gruszka /* never happens but let's not leave undefined */ 1354a8ce8544SStanislaw Gruszka default: 13551d98fb12SJohannes Berg case IEEE80211_AC_BE: 13567ba10a8eSJohannes Berg qparam.cw_max = aCWmax; 13577ba10a8eSJohannes Berg qparam.cw_min = aCWmin; 1358aa837e1dSJohannes Berg qparam.txop = 0; 1359239281f8SRostislav Lisovy if (is_ocb) 1360239281f8SRostislav Lisovy qparam.aifs = 6; 1361239281f8SRostislav Lisovy else 1362aa837e1dSJohannes Berg qparam.aifs = 3; 1363aa837e1dSJohannes Berg break; 13641d98fb12SJohannes Berg case IEEE80211_AC_VI: 1365aa837e1dSJohannes Berg qparam.cw_max = aCWmin; 1366aa837e1dSJohannes Berg qparam.cw_min = (aCWmin + 1) / 2 - 1; 1367239281f8SRostislav Lisovy if (is_ocb) 1368239281f8SRostislav Lisovy qparam.txop = 0; 1369239281f8SRostislav Lisovy else if (use_11b) 1370aa837e1dSJohannes Berg qparam.txop = 6016/32; 1371aa837e1dSJohannes Berg else 1372aa837e1dSJohannes Berg qparam.txop = 3008/32; 1373239281f8SRostislav Lisovy 1374239281f8SRostislav Lisovy if (is_ocb) 1375239281f8SRostislav Lisovy qparam.aifs = 3; 1376239281f8SRostislav Lisovy else 1377aa837e1dSJohannes Berg qparam.aifs = 2; 1378aa837e1dSJohannes Berg break; 13791d98fb12SJohannes Berg case IEEE80211_AC_VO: 1380aa837e1dSJohannes Berg qparam.cw_max = (aCWmin + 1) / 2 - 1; 1381aa837e1dSJohannes Berg qparam.cw_min = (aCWmin + 1) / 4 - 1; 1382239281f8SRostislav Lisovy if (is_ocb) 1383239281f8SRostislav Lisovy qparam.txop = 0; 1384239281f8SRostislav Lisovy else if (use_11b) 1385aa837e1dSJohannes Berg qparam.txop = 3264/32; 1386aa837e1dSJohannes Berg else 1387aa837e1dSJohannes Berg qparam.txop = 1504/32; 1388aa837e1dSJohannes Berg qparam.aifs = 2; 1389aa837e1dSJohannes Berg break; 1390aa837e1dSJohannes Berg } 1391a8ce8544SStanislaw Gruszka } 1392e552af05SHaim Dreyfuss ieee80211_regulatory_limit_wmm_params(sdata, &qparam, ac); 13935825fe10SJohannes Berg 1394ab13315aSKalle Valo qparam.uapsd = false; 1395ab13315aSKalle Valo 139654bcbc69SJohannes Berg sdata->tx_conf[ac] = qparam; 139754bcbc69SJohannes Berg drv_conf_tx(local, sdata, ac, &qparam); 1398aa837e1dSJohannes Berg } 1399e1b3ec1aSStanislaw Gruszka 1400f142c6b9SJohannes Berg if (sdata->vif.type != NL80211_IFTYPE_MONITOR && 1401708d50edSAyala Beker sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE && 1402708d50edSAyala Beker sdata->vif.type != NL80211_IFTYPE_NAN) { 1403a8ce8544SStanislaw Gruszka sdata->vif.bss_conf.qos = enable_qos; 14043abead59SJohannes Berg if (bss_notify) 14053abead59SJohannes Berg ieee80211_bss_info_change_notify(sdata, 14063abead59SJohannes Berg BSS_CHANGED_QOS); 14075825fe10SJohannes Berg } 1408d9734979SSujith } 1409e50db65cSJohannes Berg 141046900298SJohannes Berg void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, 1411700e8ea6SJouni Malinen u16 transaction, u16 auth_alg, u16 status, 14124a3cb702SJohannes Berg const u8 *extra, size_t extra_len, const u8 *da, 14131672c0e3SJohannes Berg const u8 *bssid, const u8 *key, u8 key_len, u8 key_idx, 14141672c0e3SJohannes Berg u32 tx_flags) 141546900298SJohannes Berg { 141646900298SJohannes Berg struct ieee80211_local *local = sdata->local; 141746900298SJohannes Berg struct sk_buff *skb; 141846900298SJohannes Berg struct ieee80211_mgmt *mgmt; 1419fffd0934SJohannes Berg int err; 142046900298SJohannes Berg 142115e230abSFred Zhou /* 24 + 6 = header + auth_algo + auth_transaction + status_code */ 1422744462a9SMax Stepanov skb = dev_alloc_skb(local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN + 1423744462a9SMax Stepanov 24 + 6 + extra_len + IEEE80211_WEP_ICV_LEN); 1424d15b8459SJoe Perches if (!skb) 142546900298SJohannes Berg return; 1426d15b8459SJoe Perches 1427744462a9SMax Stepanov skb_reserve(skb, local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN); 142846900298SJohannes Berg 1429b080db58SJohannes Berg mgmt = skb_put_zero(skb, 24 + 6); 143046900298SJohannes Berg mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 143146900298SJohannes Berg IEEE80211_STYPE_AUTH); 1432efa6a09dSAntonio Quartulli memcpy(mgmt->da, da, ETH_ALEN); 143347846c9bSJohannes Berg memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 143446900298SJohannes Berg memcpy(mgmt->bssid, bssid, ETH_ALEN); 143546900298SJohannes Berg mgmt->u.auth.auth_alg = cpu_to_le16(auth_alg); 143646900298SJohannes Berg mgmt->u.auth.auth_transaction = cpu_to_le16(transaction); 1437700e8ea6SJouni Malinen mgmt->u.auth.status_code = cpu_to_le16(status); 143846900298SJohannes Berg if (extra) 143959ae1d12SJohannes Berg skb_put_data(skb, extra, extra_len); 144046900298SJohannes Berg 1441fffd0934SJohannes Berg if (auth_alg == WLAN_AUTH_SHARED_KEY && transaction == 3) { 1442fffd0934SJohannes Berg mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); 1443fffd0934SJohannes Berg err = ieee80211_wep_encrypt(local, skb, key, key_len, key_idx); 1444fffd0934SJohannes Berg WARN_ON(err); 1445fffd0934SJohannes Berg } 1446fffd0934SJohannes Berg 14471672c0e3SJohannes Berg IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT | 14481672c0e3SJohannes Berg tx_flags; 144962ae67beSJohannes Berg ieee80211_tx_skb(sdata, skb); 145046900298SJohannes Berg } 145146900298SJohannes Berg 14526ae16775SAntonio Quartulli void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, 14536ae16775SAntonio Quartulli const u8 *bssid, u16 stype, u16 reason, 14546ae16775SAntonio Quartulli bool send_frame, u8 *frame_buf) 14556ae16775SAntonio Quartulli { 14566ae16775SAntonio Quartulli struct ieee80211_local *local = sdata->local; 14576ae16775SAntonio Quartulli struct sk_buff *skb; 14586ae16775SAntonio Quartulli struct ieee80211_mgmt *mgmt = (void *)frame_buf; 14596ae16775SAntonio Quartulli 14606ae16775SAntonio Quartulli /* build frame */ 14616ae16775SAntonio Quartulli mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype); 14626ae16775SAntonio Quartulli mgmt->duration = 0; /* initialize only */ 14636ae16775SAntonio Quartulli mgmt->seq_ctrl = 0; /* initialize only */ 14646ae16775SAntonio Quartulli memcpy(mgmt->da, bssid, ETH_ALEN); 14656ae16775SAntonio Quartulli memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 14666ae16775SAntonio Quartulli memcpy(mgmt->bssid, bssid, ETH_ALEN); 14676ae16775SAntonio Quartulli /* u.deauth.reason_code == u.disassoc.reason_code */ 14686ae16775SAntonio Quartulli mgmt->u.deauth.reason_code = cpu_to_le16(reason); 14696ae16775SAntonio Quartulli 14706ae16775SAntonio Quartulli if (send_frame) { 14716ae16775SAntonio Quartulli skb = dev_alloc_skb(local->hw.extra_tx_headroom + 14726ae16775SAntonio Quartulli IEEE80211_DEAUTH_FRAME_LEN); 14736ae16775SAntonio Quartulli if (!skb) 14746ae16775SAntonio Quartulli return; 14756ae16775SAntonio Quartulli 14766ae16775SAntonio Quartulli skb_reserve(skb, local->hw.extra_tx_headroom); 14776ae16775SAntonio Quartulli 14786ae16775SAntonio Quartulli /* copy in frame */ 147959ae1d12SJohannes Berg skb_put_data(skb, mgmt, IEEE80211_DEAUTH_FRAME_LEN); 14806ae16775SAntonio Quartulli 14816ae16775SAntonio Quartulli if (sdata->vif.type != NL80211_IFTYPE_STATION || 14826ae16775SAntonio Quartulli !(sdata->u.mgd.flags & IEEE80211_STA_MFP_ENABLED)) 14836ae16775SAntonio Quartulli IEEE80211_SKB_CB(skb)->flags |= 14846ae16775SAntonio Quartulli IEEE80211_TX_INTFL_DONT_ENCRYPT; 14856ae16775SAntonio Quartulli 14866ae16775SAntonio Quartulli ieee80211_tx_skb(sdata, skb); 14876ae16775SAntonio Quartulli } 14886ae16775SAntonio Quartulli } 14896ae16775SAntonio Quartulli 1490c56ef672SDavid Spinadel static int ieee80211_build_preq_ies_band(struct ieee80211_local *local, 1491c56ef672SDavid Spinadel u8 *buffer, size_t buffer_len, 1492c56ef672SDavid Spinadel const u8 *ie, size_t ie_len, 149357fbcce3SJohannes Berg enum nl80211_band band, 1494c56ef672SDavid Spinadel u32 rate_mask, 1495c56ef672SDavid Spinadel struct cfg80211_chan_def *chandef, 149600387f32SJohannes Berg size_t *offset, u32 flags) 1497de95a54bSJohannes Berg { 1498de95a54bSJohannes Berg struct ieee80211_supported_band *sband; 149941cbb0f5SLuca Coelho const struct ieee80211_sta_he_cap *he_cap; 1500c604b9f2SJohannes Berg u8 *pos = buffer, *end = buffer + buffer_len; 1501c56ef672SDavid Spinadel size_t noffset; 15028e664fb3SJohannes Berg int supp_rates_len, i; 15038dcb2003SJouni Malinen u8 rates[32]; 15048dcb2003SJouni Malinen int num_rates; 15058dcb2003SJouni Malinen int ext_rates_len; 15062103dec1SSimon Wunderlich int shift; 15072103dec1SSimon Wunderlich u32 rate_flags; 150840a11ca8SJohannes Berg bool have_80mhz = false; 1509de95a54bSJohannes Berg 1510c56ef672SDavid Spinadel *offset = 0; 1511c56ef672SDavid Spinadel 15124d36ec58SJohannes Berg sband = local->hw.wiphy->bands[band]; 1513d811b3d5SArik Nemtsov if (WARN_ON_ONCE(!sband)) 1514d811b3d5SArik Nemtsov return 0; 1515de95a54bSJohannes Berg 15162103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(chandef); 15172103dec1SSimon Wunderlich shift = ieee80211_chandef_get_shift(chandef); 15182103dec1SSimon Wunderlich 15198dcb2003SJouni Malinen num_rates = 0; 15208dcb2003SJouni Malinen for (i = 0; i < sband->n_bitrates; i++) { 15218dcb2003SJouni Malinen if ((BIT(i) & rate_mask) == 0) 15228dcb2003SJouni Malinen continue; /* skip rate */ 15232103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 15242103dec1SSimon Wunderlich continue; 15252103dec1SSimon Wunderlich 15262103dec1SSimon Wunderlich rates[num_rates++] = 15272103dec1SSimon Wunderlich (u8) DIV_ROUND_UP(sband->bitrates[i].bitrate, 15282103dec1SSimon Wunderlich (1 << shift) * 5); 15298dcb2003SJouni Malinen } 15308dcb2003SJouni Malinen 15318dcb2003SJouni Malinen supp_rates_len = min_t(int, num_rates, 8); 15328e664fb3SJohannes Berg 1533c604b9f2SJohannes Berg if (end - pos < 2 + supp_rates_len) 1534c604b9f2SJohannes Berg goto out_err; 1535de95a54bSJohannes Berg *pos++ = WLAN_EID_SUPP_RATES; 15368e664fb3SJohannes Berg *pos++ = supp_rates_len; 15378dcb2003SJouni Malinen memcpy(pos, rates, supp_rates_len); 15388dcb2003SJouni Malinen pos += supp_rates_len; 1539de95a54bSJohannes Berg 15408e664fb3SJohannes Berg /* insert "request information" if in custom IEs */ 15418e664fb3SJohannes Berg if (ie && ie_len) { 15428e664fb3SJohannes Berg static const u8 before_extrates[] = { 15438e664fb3SJohannes Berg WLAN_EID_SSID, 15448e664fb3SJohannes Berg WLAN_EID_SUPP_RATES, 15458e664fb3SJohannes Berg WLAN_EID_REQUEST, 15468e664fb3SJohannes Berg }; 15478e664fb3SJohannes Berg noffset = ieee80211_ie_split(ie, ie_len, 15488e664fb3SJohannes Berg before_extrates, 15498e664fb3SJohannes Berg ARRAY_SIZE(before_extrates), 1550c56ef672SDavid Spinadel *offset); 1551c56ef672SDavid Spinadel if (end - pos < noffset - *offset) 1552c604b9f2SJohannes Berg goto out_err; 1553c56ef672SDavid Spinadel memcpy(pos, ie + *offset, noffset - *offset); 1554c56ef672SDavid Spinadel pos += noffset - *offset; 1555c56ef672SDavid Spinadel *offset = noffset; 15568e664fb3SJohannes Berg } 15578e664fb3SJohannes Berg 15588dcb2003SJouni Malinen ext_rates_len = num_rates - supp_rates_len; 15598dcb2003SJouni Malinen if (ext_rates_len > 0) { 1560c604b9f2SJohannes Berg if (end - pos < 2 + ext_rates_len) 1561c604b9f2SJohannes Berg goto out_err; 1562de95a54bSJohannes Berg *pos++ = WLAN_EID_EXT_SUPP_RATES; 15638dcb2003SJouni Malinen *pos++ = ext_rates_len; 15648dcb2003SJouni Malinen memcpy(pos, rates + supp_rates_len, ext_rates_len); 15658dcb2003SJouni Malinen pos += ext_rates_len; 15668e664fb3SJohannes Berg } 15678e664fb3SJohannes Berg 156857fbcce3SJohannes Berg if (chandef->chan && sband->band == NL80211_BAND_2GHZ) { 1569c604b9f2SJohannes Berg if (end - pos < 3) 1570c604b9f2SJohannes Berg goto out_err; 1571651b5225SJouni Malinen *pos++ = WLAN_EID_DS_PARAMS; 1572651b5225SJouni Malinen *pos++ = 1; 15732103dec1SSimon Wunderlich *pos++ = ieee80211_frequency_to_channel( 15742103dec1SSimon Wunderlich chandef->chan->center_freq); 1575651b5225SJouni Malinen } 1576651b5225SJouni Malinen 1577b9771d41SJohannes Berg if (flags & IEEE80211_PROBE_FLAG_MIN_CONTENT) 1578b9771d41SJohannes Berg goto done; 1579b9771d41SJohannes Berg 15808e664fb3SJohannes Berg /* insert custom IEs that go before HT */ 15818e664fb3SJohannes Berg if (ie && ie_len) { 15828e664fb3SJohannes Berg static const u8 before_ht[] = { 1583a7f26d80SJohannes Berg /* 1584a7f26d80SJohannes Berg * no need to list the ones split off already 1585a7f26d80SJohannes Berg * (or generated here) 1586a7f26d80SJohannes Berg */ 15878e664fb3SJohannes Berg WLAN_EID_DS_PARAMS, 15888e664fb3SJohannes Berg WLAN_EID_SUPPORTED_REGULATORY_CLASSES, 15898e664fb3SJohannes Berg }; 15908e664fb3SJohannes Berg noffset = ieee80211_ie_split(ie, ie_len, 15918e664fb3SJohannes Berg before_ht, ARRAY_SIZE(before_ht), 1592c56ef672SDavid Spinadel *offset); 1593c56ef672SDavid Spinadel if (end - pos < noffset - *offset) 1594c604b9f2SJohannes Berg goto out_err; 1595c56ef672SDavid Spinadel memcpy(pos, ie + *offset, noffset - *offset); 1596c56ef672SDavid Spinadel pos += noffset - *offset; 1597c56ef672SDavid Spinadel *offset = noffset; 1598de95a54bSJohannes Berg } 1599de95a54bSJohannes Berg 1600c604b9f2SJohannes Berg if (sband->ht_cap.ht_supported) { 1601c604b9f2SJohannes Berg if (end - pos < 2 + sizeof(struct ieee80211_ht_cap)) 1602c604b9f2SJohannes Berg goto out_err; 1603ef96a842SBen Greear pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap, 1604ef96a842SBen Greear sband->ht_cap.cap); 1605c604b9f2SJohannes Berg } 16065ef2d41aSJohannes Berg 16074d952300SJohannes Berg /* insert custom IEs that go before VHT */ 16088e664fb3SJohannes Berg if (ie && ie_len) { 16094d952300SJohannes Berg static const u8 before_vht[] = { 1610a7f26d80SJohannes Berg /* 1611a7f26d80SJohannes Berg * no need to list the ones split off already 1612a7f26d80SJohannes Berg * (or generated here) 1613a7f26d80SJohannes Berg */ 16144d952300SJohannes Berg WLAN_EID_BSS_COEX_2040, 16154d952300SJohannes Berg WLAN_EID_EXT_CAPABILITY, 16164d952300SJohannes Berg WLAN_EID_SSID_LIST, 16174d952300SJohannes Berg WLAN_EID_CHANNEL_USAGE, 16184d952300SJohannes Berg WLAN_EID_INTERWORKING, 1619b44eebeaSLiad Kaufman WLAN_EID_MESH_ID, 1620a7f26d80SJohannes Berg /* 60 GHz (Multi-band, DMG, MMS) can't happen */ 16214d952300SJohannes Berg }; 16224d952300SJohannes Berg noffset = ieee80211_ie_split(ie, ie_len, 16234d952300SJohannes Berg before_vht, ARRAY_SIZE(before_vht), 1624c56ef672SDavid Spinadel *offset); 1625c56ef672SDavid Spinadel if (end - pos < noffset - *offset) 1626c604b9f2SJohannes Berg goto out_err; 1627c56ef672SDavid Spinadel memcpy(pos, ie + *offset, noffset - *offset); 1628c56ef672SDavid Spinadel pos += noffset - *offset; 1629c56ef672SDavid Spinadel *offset = noffset; 1630de95a54bSJohannes Berg } 1631de95a54bSJohannes Berg 163240a11ca8SJohannes Berg /* Check if any channel in this sband supports at least 80 MHz */ 163340a11ca8SJohannes Berg for (i = 0; i < sband->n_channels; i++) { 1634fa44b988SArik Nemtsov if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED | 1635fa44b988SArik Nemtsov IEEE80211_CHAN_NO_80MHZ)) 1636fa44b988SArik Nemtsov continue; 1637fa44b988SArik Nemtsov 163840a11ca8SJohannes Berg have_80mhz = true; 163940a11ca8SJohannes Berg break; 164040a11ca8SJohannes Berg } 164140a11ca8SJohannes Berg 164240a11ca8SJohannes Berg if (sband->vht_cap.vht_supported && have_80mhz) { 1643c604b9f2SJohannes Berg if (end - pos < 2 + sizeof(struct ieee80211_vht_cap)) 1644c604b9f2SJohannes Berg goto out_err; 1645ba0afa2fSMahesh Palivela pos = ieee80211_ie_build_vht_cap(pos, &sband->vht_cap, 1646ba0afa2fSMahesh Palivela sband->vht_cap.cap); 1647c604b9f2SJohannes Berg } 1648ba0afa2fSMahesh Palivela 164941cbb0f5SLuca Coelho /* insert custom IEs that go before HE */ 165041cbb0f5SLuca Coelho if (ie && ie_len) { 165141cbb0f5SLuca Coelho static const u8 before_he[] = { 165241cbb0f5SLuca Coelho /* 165341cbb0f5SLuca Coelho * no need to list the ones split off before VHT 165441cbb0f5SLuca Coelho * or generated here 165541cbb0f5SLuca Coelho */ 165641cbb0f5SLuca Coelho WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_REQ_PARAMS, 165741cbb0f5SLuca Coelho WLAN_EID_AP_CSN, 165841cbb0f5SLuca Coelho /* TODO: add 11ah/11aj/11ak elements */ 165941cbb0f5SLuca Coelho }; 166041cbb0f5SLuca Coelho noffset = ieee80211_ie_split(ie, ie_len, 166141cbb0f5SLuca Coelho before_he, ARRAY_SIZE(before_he), 166241cbb0f5SLuca Coelho *offset); 166341cbb0f5SLuca Coelho if (end - pos < noffset - *offset) 166441cbb0f5SLuca Coelho goto out_err; 166541cbb0f5SLuca Coelho memcpy(pos, ie + *offset, noffset - *offset); 166641cbb0f5SLuca Coelho pos += noffset - *offset; 166741cbb0f5SLuca Coelho *offset = noffset; 166841cbb0f5SLuca Coelho } 166941cbb0f5SLuca Coelho 167041cbb0f5SLuca Coelho he_cap = ieee80211_get_he_sta_cap(sband); 167141cbb0f5SLuca Coelho if (he_cap) { 167241cbb0f5SLuca Coelho pos = ieee80211_ie_build_he_cap(pos, he_cap, end); 167341cbb0f5SLuca Coelho if (!pos) 167441cbb0f5SLuca Coelho goto out_err; 167541cbb0f5SLuca Coelho } 167641cbb0f5SLuca Coelho 167741cbb0f5SLuca Coelho /* 167841cbb0f5SLuca Coelho * If adding more here, adjust code in main.c 167941cbb0f5SLuca Coelho * that calculates local->scan_ies_len. 168041cbb0f5SLuca Coelho */ 168141cbb0f5SLuca Coelho 1682de95a54bSJohannes Berg return pos - buffer; 1683c604b9f2SJohannes Berg out_err: 1684c604b9f2SJohannes Berg WARN_ONCE(1, "not enough space for preq IEs\n"); 1685b9771d41SJohannes Berg done: 1686c604b9f2SJohannes Berg return pos - buffer; 1687de95a54bSJohannes Berg } 1688de95a54bSJohannes Berg 1689c56ef672SDavid Spinadel int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, 1690c56ef672SDavid Spinadel size_t buffer_len, 1691c56ef672SDavid Spinadel struct ieee80211_scan_ies *ie_desc, 1692c56ef672SDavid Spinadel const u8 *ie, size_t ie_len, 1693c56ef672SDavid Spinadel u8 bands_used, u32 *rate_masks, 169400387f32SJohannes Berg struct cfg80211_chan_def *chandef, 169500387f32SJohannes Berg u32 flags) 1696c56ef672SDavid Spinadel { 1697c56ef672SDavid Spinadel size_t pos = 0, old_pos = 0, custom_ie_offset = 0; 1698c56ef672SDavid Spinadel int i; 1699c56ef672SDavid Spinadel 1700c56ef672SDavid Spinadel memset(ie_desc, 0, sizeof(*ie_desc)); 1701c56ef672SDavid Spinadel 170257fbcce3SJohannes Berg for (i = 0; i < NUM_NL80211_BANDS; i++) { 1703c56ef672SDavid Spinadel if (bands_used & BIT(i)) { 1704c56ef672SDavid Spinadel pos += ieee80211_build_preq_ies_band(local, 1705c56ef672SDavid Spinadel buffer + pos, 1706c56ef672SDavid Spinadel buffer_len - pos, 1707c56ef672SDavid Spinadel ie, ie_len, i, 1708c56ef672SDavid Spinadel rate_masks[i], 1709c56ef672SDavid Spinadel chandef, 171000387f32SJohannes Berg &custom_ie_offset, 171100387f32SJohannes Berg flags); 1712c56ef672SDavid Spinadel ie_desc->ies[i] = buffer + old_pos; 1713c56ef672SDavid Spinadel ie_desc->len[i] = pos - old_pos; 1714c56ef672SDavid Spinadel old_pos = pos; 1715c56ef672SDavid Spinadel } 1716c56ef672SDavid Spinadel } 1717c56ef672SDavid Spinadel 1718c56ef672SDavid Spinadel /* add any remaining custom IEs */ 1719c56ef672SDavid Spinadel if (ie && ie_len) { 1720c56ef672SDavid Spinadel if (WARN_ONCE(buffer_len - pos < ie_len - custom_ie_offset, 1721c56ef672SDavid Spinadel "not enough space for preq custom IEs\n")) 1722c56ef672SDavid Spinadel return pos; 1723c56ef672SDavid Spinadel memcpy(buffer + pos, ie + custom_ie_offset, 1724c56ef672SDavid Spinadel ie_len - custom_ie_offset); 1725c56ef672SDavid Spinadel ie_desc->common_ies = buffer + pos; 1726c56ef672SDavid Spinadel ie_desc->common_ie_len = ie_len - custom_ie_offset; 1727c56ef672SDavid Spinadel pos += ie_len - custom_ie_offset; 1728c56ef672SDavid Spinadel } 1729c56ef672SDavid Spinadel 1730c56ef672SDavid Spinadel return pos; 1731c56ef672SDavid Spinadel }; 1732c56ef672SDavid Spinadel 1733a619a4c0SJuuso Oikarinen struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, 1734a344d677SJohannes Berg const u8 *src, const u8 *dst, 1735a344d677SJohannes Berg u32 ratemask, 17366b77863bSJohannes Berg struct ieee80211_channel *chan, 1737de95a54bSJohannes Berg const u8 *ssid, size_t ssid_len, 1738a806c558SPaul Stewart const u8 *ie, size_t ie_len, 173900387f32SJohannes Berg u32 flags) 174046900298SJohannes Berg { 174146900298SJohannes Berg struct ieee80211_local *local = sdata->local; 17422103dec1SSimon Wunderlich struct cfg80211_chan_def chandef; 174346900298SJohannes Berg struct sk_buff *skb; 174446900298SJohannes Berg struct ieee80211_mgmt *mgmt; 1745b9a9ada1SJohannes Berg int ies_len; 174657fbcce3SJohannes Berg u32 rate_masks[NUM_NL80211_BANDS] = {}; 1747c56ef672SDavid Spinadel struct ieee80211_scan_ies dummy_ie_desc; 174846900298SJohannes Berg 1749a806c558SPaul Stewart /* 1750a806c558SPaul Stewart * Do not send DS Channel parameter for directed probe requests 1751a806c558SPaul Stewart * in order to maximize the chance that we get a response. Some 1752a806c558SPaul Stewart * badly-behaved APs don't respond when this parameter is included. 1753a806c558SPaul Stewart */ 17542103dec1SSimon Wunderlich chandef.width = sdata->vif.bss_conf.chandef.width; 175500387f32SJohannes Berg if (flags & IEEE80211_PROBE_FLAG_DIRECTED) 17562103dec1SSimon Wunderlich chandef.chan = NULL; 1757a806c558SPaul Stewart else 17582103dec1SSimon Wunderlich chandef.chan = chan; 1759651b5225SJouni Malinen 1760a344d677SJohannes Berg skb = ieee80211_probereq_get(&local->hw, src, ssid, ssid_len, 1761a344d677SJohannes Berg 100 + ie_len); 17625b2bbf75SJohannes Berg if (!skb) 1763b9a9ada1SJohannes Berg return NULL; 1764b9a9ada1SJohannes Berg 1765c56ef672SDavid Spinadel rate_masks[chan->band] = ratemask; 1766b9a9ada1SJohannes Berg ies_len = ieee80211_build_preq_ies(local, skb_tail_pointer(skb), 1767c56ef672SDavid Spinadel skb_tailroom(skb), &dummy_ie_desc, 1768c56ef672SDavid Spinadel ie, ie_len, BIT(chan->band), 176900387f32SJohannes Berg rate_masks, &chandef, flags); 1770b9a9ada1SJohannes Berg skb_put(skb, ies_len); 17717c12ce8bSKalle Valo 177246900298SJohannes Berg if (dst) { 17737c12ce8bSKalle Valo mgmt = (struct ieee80211_mgmt *) skb->data; 177446900298SJohannes Berg memcpy(mgmt->da, dst, ETH_ALEN); 177546900298SJohannes Berg memcpy(mgmt->bssid, dst, ETH_ALEN); 177646900298SJohannes Berg } 177746900298SJohannes Berg 177862ae67beSJohannes Berg IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; 17795b2bbf75SJohannes Berg 1780a619a4c0SJuuso Oikarinen return skb; 1781a619a4c0SJuuso Oikarinen } 1782a619a4c0SJuuso Oikarinen 17832103dec1SSimon Wunderlich u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, 178446900298SJohannes Berg struct ieee802_11_elems *elems, 178557fbcce3SJohannes Berg enum nl80211_band band, u32 *basic_rates) 178646900298SJohannes Berg { 178746900298SJohannes Berg struct ieee80211_supported_band *sband; 178846900298SJohannes Berg size_t num_rates; 17892103dec1SSimon Wunderlich u32 supp_rates, rate_flags; 17902103dec1SSimon Wunderlich int i, j, shift; 179121a8e9ddSMohammed Shafi Shajakhan 17922103dec1SSimon Wunderlich sband = sdata->local->hw.wiphy->bands[band]; 179321a8e9ddSMohammed Shafi Shajakhan if (WARN_ON(!sband)) 179421a8e9ddSMohammed Shafi Shajakhan return 1; 17952103dec1SSimon Wunderlich 17962103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); 17972103dec1SSimon Wunderlich shift = ieee80211_vif_get_shift(&sdata->vif); 179846900298SJohannes Berg 179946900298SJohannes Berg num_rates = sband->n_bitrates; 180046900298SJohannes Berg supp_rates = 0; 180146900298SJohannes Berg for (i = 0; i < elems->supp_rates_len + 180246900298SJohannes Berg elems->ext_supp_rates_len; i++) { 180346900298SJohannes Berg u8 rate = 0; 180446900298SJohannes Berg int own_rate; 18059ebb61a2SAshok Nagarajan bool is_basic; 180646900298SJohannes Berg if (i < elems->supp_rates_len) 180746900298SJohannes Berg rate = elems->supp_rates[i]; 180846900298SJohannes Berg else if (elems->ext_supp_rates) 180946900298SJohannes Berg rate = elems->ext_supp_rates 181046900298SJohannes Berg [i - elems->supp_rates_len]; 181146900298SJohannes Berg own_rate = 5 * (rate & 0x7f); 18129ebb61a2SAshok Nagarajan is_basic = !!(rate & 0x80); 18139ebb61a2SAshok Nagarajan 18149ebb61a2SAshok Nagarajan if (is_basic && (rate & 0x7f) == BSS_MEMBERSHIP_SELECTOR_HT_PHY) 18159ebb61a2SAshok Nagarajan continue; 18169ebb61a2SAshok Nagarajan 18179ebb61a2SAshok Nagarajan for (j = 0; j < num_rates; j++) { 18182103dec1SSimon Wunderlich int brate; 18192103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[j].flags) 18202103dec1SSimon Wunderlich != rate_flags) 18212103dec1SSimon Wunderlich continue; 18222103dec1SSimon Wunderlich 18232103dec1SSimon Wunderlich brate = DIV_ROUND_UP(sband->bitrates[j].bitrate, 18242103dec1SSimon Wunderlich 1 << shift); 18252103dec1SSimon Wunderlich 18262103dec1SSimon Wunderlich if (brate == own_rate) { 182746900298SJohannes Berg supp_rates |= BIT(j); 18289ebb61a2SAshok Nagarajan if (basic_rates && is_basic) 18299ebb61a2SAshok Nagarajan *basic_rates |= BIT(j); 18309ebb61a2SAshok Nagarajan } 18319ebb61a2SAshok Nagarajan } 183246900298SJohannes Berg } 183346900298SJohannes Berg return supp_rates; 183446900298SJohannes Berg } 1835f2753ddbSJohannes Berg 183684f6a01cSJohannes Berg void ieee80211_stop_device(struct ieee80211_local *local) 183784f6a01cSJohannes Berg { 183884f6a01cSJohannes Berg ieee80211_led_radio(local, false); 183967408c8cSJohannes Berg ieee80211_mod_tpt_led_trig(local, 0, IEEE80211_TPT_LEDTRIG_FL_RADIO); 184084f6a01cSJohannes Berg 184184f6a01cSJohannes Berg cancel_work_sync(&local->reconfig_filter); 184284f6a01cSJohannes Berg 184384f6a01cSJohannes Berg flush_workqueue(local->workqueue); 1844678f415fSLennert Buytenhek drv_stop(local); 184584f6a01cSJohannes Berg } 184684f6a01cSJohannes Berg 184774430f94SJohannes Berg static void ieee80211_flush_completed_scan(struct ieee80211_local *local, 184874430f94SJohannes Berg bool aborted) 184974430f94SJohannes Berg { 185074430f94SJohannes Berg /* It's possible that we don't handle the scan completion in 185174430f94SJohannes Berg * time during suspend, so if it's still marked as completed 185274430f94SJohannes Berg * here, queue the work and flush it to clean things up. 185374430f94SJohannes Berg * Instead of calling the worker function directly here, we 185474430f94SJohannes Berg * really queue it to avoid potential races with other flows 185574430f94SJohannes Berg * scheduling the same work. 185674430f94SJohannes Berg */ 185774430f94SJohannes Berg if (test_bit(SCAN_COMPLETED, &local->scanning)) { 185874430f94SJohannes Berg /* If coming from reconfiguration failure, abort the scan so 185974430f94SJohannes Berg * we don't attempt to continue a partial HW scan - which is 186074430f94SJohannes Berg * possible otherwise if (e.g.) the 2.4 GHz portion was the 186174430f94SJohannes Berg * completed scan, and a 5 GHz portion is still pending. 186274430f94SJohannes Berg */ 186374430f94SJohannes Berg if (aborted) 186474430f94SJohannes Berg set_bit(SCAN_ABORTED, &local->scanning); 186574430f94SJohannes Berg ieee80211_queue_delayed_work(&local->hw, &local->scan_work, 0); 186674430f94SJohannes Berg flush_delayed_work(&local->scan_work); 186774430f94SJohannes Berg } 186874430f94SJohannes Berg } 186974430f94SJohannes Berg 1870f6837ba8SJohannes Berg static void ieee80211_handle_reconfig_failure(struct ieee80211_local *local) 1871f6837ba8SJohannes Berg { 1872f6837ba8SJohannes Berg struct ieee80211_sub_if_data *sdata; 1873f6837ba8SJohannes Berg struct ieee80211_chanctx *ctx; 1874f6837ba8SJohannes Berg 1875f6837ba8SJohannes Berg /* 1876f6837ba8SJohannes Berg * We get here if during resume the device can't be restarted properly. 1877f6837ba8SJohannes Berg * We might also get here if this happens during HW reset, which is a 1878f6837ba8SJohannes Berg * slightly different situation and we need to drop all connections in 1879f6837ba8SJohannes Berg * the latter case. 1880f6837ba8SJohannes Berg * 1881f6837ba8SJohannes Berg * Ask cfg80211 to turn off all interfaces, this will result in more 1882f6837ba8SJohannes Berg * warnings but at least we'll then get into a clean stopped state. 1883f6837ba8SJohannes Berg */ 1884f6837ba8SJohannes Berg 1885f6837ba8SJohannes Berg local->resuming = false; 1886f6837ba8SJohannes Berg local->suspended = false; 18877584f88fSEliad Peller local->in_reconfig = false; 1888f6837ba8SJohannes Berg 188974430f94SJohannes Berg ieee80211_flush_completed_scan(local, true); 189074430f94SJohannes Berg 1891f6837ba8SJohannes Berg /* scheduled scan clearly can't be running any more, but tell 1892f6837ba8SJohannes Berg * cfg80211 and clear local state 1893f6837ba8SJohannes Berg */ 1894f6837ba8SJohannes Berg ieee80211_sched_scan_end(local); 1895f6837ba8SJohannes Berg 1896f6837ba8SJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) 1897f6837ba8SJohannes Berg sdata->flags &= ~IEEE80211_SDATA_IN_DRIVER; 1898f6837ba8SJohannes Berg 1899f6837ba8SJohannes Berg /* Mark channel contexts as not being in the driver any more to avoid 1900f6837ba8SJohannes Berg * removing them from the driver during the shutdown process... 1901f6837ba8SJohannes Berg */ 1902f6837ba8SJohannes Berg mutex_lock(&local->chanctx_mtx); 1903f6837ba8SJohannes Berg list_for_each_entry(ctx, &local->chanctx_list, list) 1904f6837ba8SJohannes Berg ctx->driver_present = false; 1905f6837ba8SJohannes Berg mutex_unlock(&local->chanctx_mtx); 1906f6837ba8SJohannes Berg 1907f6837ba8SJohannes Berg cfg80211_shutdown_all_interfaces(local->hw.wiphy); 1908f6837ba8SJohannes Berg } 1909f6837ba8SJohannes Berg 1910153a5fc4SStanislaw Gruszka static void ieee80211_assign_chanctx(struct ieee80211_local *local, 1911153a5fc4SStanislaw Gruszka struct ieee80211_sub_if_data *sdata) 1912153a5fc4SStanislaw Gruszka { 1913153a5fc4SStanislaw Gruszka struct ieee80211_chanctx_conf *conf; 1914153a5fc4SStanislaw Gruszka struct ieee80211_chanctx *ctx; 1915153a5fc4SStanislaw Gruszka 1916153a5fc4SStanislaw Gruszka if (!local->use_chanctx) 1917153a5fc4SStanislaw Gruszka return; 1918153a5fc4SStanislaw Gruszka 1919153a5fc4SStanislaw Gruszka mutex_lock(&local->chanctx_mtx); 1920153a5fc4SStanislaw Gruszka conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 1921153a5fc4SStanislaw Gruszka lockdep_is_held(&local->chanctx_mtx)); 1922153a5fc4SStanislaw Gruszka if (conf) { 1923153a5fc4SStanislaw Gruszka ctx = container_of(conf, struct ieee80211_chanctx, conf); 1924153a5fc4SStanislaw Gruszka drv_assign_vif_chanctx(local, sdata, ctx); 1925153a5fc4SStanislaw Gruszka } 1926153a5fc4SStanislaw Gruszka mutex_unlock(&local->chanctx_mtx); 1927153a5fc4SStanislaw Gruszka } 1928153a5fc4SStanislaw Gruszka 19291ea2c864SJohannes Berg static void ieee80211_reconfig_stations(struct ieee80211_sub_if_data *sdata) 19301ea2c864SJohannes Berg { 19311ea2c864SJohannes Berg struct ieee80211_local *local = sdata->local; 19321ea2c864SJohannes Berg struct sta_info *sta; 19331ea2c864SJohannes Berg 19341ea2c864SJohannes Berg /* add STAs back */ 19351ea2c864SJohannes Berg mutex_lock(&local->sta_mtx); 19361ea2c864SJohannes Berg list_for_each_entry(sta, &local->sta_list, list) { 19371ea2c864SJohannes Berg enum ieee80211_sta_state state; 19381ea2c864SJohannes Berg 19391ea2c864SJohannes Berg if (!sta->uploaded || sta->sdata != sdata) 19401ea2c864SJohannes Berg continue; 19411ea2c864SJohannes Berg 19421ea2c864SJohannes Berg for (state = IEEE80211_STA_NOTEXIST; 19431ea2c864SJohannes Berg state < sta->sta_state; state++) 19441ea2c864SJohannes Berg WARN_ON(drv_sta_state(local, sta->sdata, sta, state, 19451ea2c864SJohannes Berg state + 1)); 19461ea2c864SJohannes Berg } 19471ea2c864SJohannes Berg mutex_unlock(&local->sta_mtx); 19481ea2c864SJohannes Berg } 19491ea2c864SJohannes Berg 1950167e33f4SAyala Beker static int ieee80211_reconfig_nan(struct ieee80211_sub_if_data *sdata) 1951167e33f4SAyala Beker { 1952167e33f4SAyala Beker struct cfg80211_nan_func *func, **funcs; 1953167e33f4SAyala Beker int res, id, i = 0; 1954167e33f4SAyala Beker 1955167e33f4SAyala Beker res = drv_start_nan(sdata->local, sdata, 1956167e33f4SAyala Beker &sdata->u.nan.conf); 1957167e33f4SAyala Beker if (WARN_ON(res)) 1958167e33f4SAyala Beker return res; 1959167e33f4SAyala Beker 19606396bb22SKees Cook funcs = kcalloc(sdata->local->hw.max_nan_de_entries + 1, 19616396bb22SKees Cook sizeof(*funcs), 19626396bb22SKees Cook GFP_KERNEL); 1963167e33f4SAyala Beker if (!funcs) 1964167e33f4SAyala Beker return -ENOMEM; 1965167e33f4SAyala Beker 1966167e33f4SAyala Beker /* Add all the functions: 1967167e33f4SAyala Beker * This is a little bit ugly. We need to call a potentially sleeping 1968167e33f4SAyala Beker * callback for each NAN function, so we can't hold the spinlock. 1969167e33f4SAyala Beker */ 1970167e33f4SAyala Beker spin_lock_bh(&sdata->u.nan.func_lock); 1971167e33f4SAyala Beker 1972167e33f4SAyala Beker idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) 1973167e33f4SAyala Beker funcs[i++] = func; 1974167e33f4SAyala Beker 1975167e33f4SAyala Beker spin_unlock_bh(&sdata->u.nan.func_lock); 1976167e33f4SAyala Beker 1977167e33f4SAyala Beker for (i = 0; funcs[i]; i++) { 1978167e33f4SAyala Beker res = drv_add_nan_func(sdata->local, sdata, funcs[i]); 1979167e33f4SAyala Beker if (WARN_ON(res)) 1980167e33f4SAyala Beker ieee80211_nan_func_terminated(&sdata->vif, 1981167e33f4SAyala Beker funcs[i]->instance_id, 1982167e33f4SAyala Beker NL80211_NAN_FUNC_TERM_REASON_ERROR, 1983167e33f4SAyala Beker GFP_KERNEL); 1984167e33f4SAyala Beker } 1985167e33f4SAyala Beker 1986167e33f4SAyala Beker kfree(funcs); 1987167e33f4SAyala Beker 1988167e33f4SAyala Beker return 0; 1989167e33f4SAyala Beker } 1990167e33f4SAyala Beker 1991f2753ddbSJohannes Berg int ieee80211_reconfig(struct ieee80211_local *local) 1992f2753ddbSJohannes Berg { 1993f2753ddbSJohannes Berg struct ieee80211_hw *hw = &local->hw; 1994f2753ddbSJohannes Berg struct ieee80211_sub_if_data *sdata; 199555de908aSJohannes Berg struct ieee80211_chanctx *ctx; 1996f2753ddbSJohannes Berg struct sta_info *sta; 19972683d65bSEliad Peller int res, i; 1998d888130aSJohannes Berg bool reconfig_due_to_wowlan = false; 1999d43c6b6eSDavid Spinadel struct ieee80211_sub_if_data *sched_scan_sdata; 20006ea0a69cSJohannes Berg struct cfg80211_sched_scan_request *sched_scan_req; 2001d43c6b6eSDavid Spinadel bool sched_scan_stopped = false; 2002b0485e9fSEliad Peller bool suspended = local->suspended; 2003d888130aSJohannes Berg 20040f8b8245SEliad Peller /* nothing to do if HW shouldn't run */ 20050f8b8245SEliad Peller if (!local->open_count) 20060f8b8245SEliad Peller goto wake_up; 20070f8b8245SEliad Peller 20088f21b0adSJohannes Berg #ifdef CONFIG_PM 2009b0485e9fSEliad Peller if (suspended) 2010ceb99fe0SJohannes Berg local->resuming = true; 2011f2753ddbSJohannes Berg 2012eecc4800SJohannes Berg if (local->wowlan) { 2013b0485e9fSEliad Peller /* 2014b0485e9fSEliad Peller * In the wowlan case, both mac80211 and the device 2015b0485e9fSEliad Peller * are functional when the resume op is called, so 2016b0485e9fSEliad Peller * clear local->suspended so the device could operate 2017b0485e9fSEliad Peller * normally (e.g. pass rx frames). 2018b0485e9fSEliad Peller */ 2019b0485e9fSEliad Peller local->suspended = false; 2020eecc4800SJohannes Berg res = drv_resume(local); 202127b3eb9cSJohannes Berg local->wowlan = false; 2022eecc4800SJohannes Berg if (res < 0) { 2023eecc4800SJohannes Berg local->resuming = false; 2024eecc4800SJohannes Berg return res; 2025eecc4800SJohannes Berg } 2026eecc4800SJohannes Berg if (res == 0) 2027eecc4800SJohannes Berg goto wake_up; 2028eecc4800SJohannes Berg WARN_ON(res > 1); 2029eecc4800SJohannes Berg /* 2030eecc4800SJohannes Berg * res is 1, which means the driver requested 2031eecc4800SJohannes Berg * to go through a regular reset on wakeup. 2032b0485e9fSEliad Peller * restore local->suspended in this case. 2033eecc4800SJohannes Berg */ 2034d888130aSJohannes Berg reconfig_due_to_wowlan = true; 2035b0485e9fSEliad Peller local->suspended = true; 2036eecc4800SJohannes Berg } 2037eecc4800SJohannes Berg #endif 203894f9b97bSJohannes Berg 203924feda00SLuis R. Rodriguez /* 204043d6df00SEliad Peller * In case of hw_restart during suspend (without wowlan), 204143d6df00SEliad Peller * cancel restart work, as we are reconfiguring the device 204243d6df00SEliad Peller * anyway. 204343d6df00SEliad Peller * Note that restart_work is scheduled on a frozen workqueue, 204443d6df00SEliad Peller * so we can't deadlock in this case. 204543d6df00SEliad Peller */ 204643d6df00SEliad Peller if (suspended && local->in_reconfig && !reconfig_due_to_wowlan) 204743d6df00SEliad Peller cancel_work_sync(&local->restart_work); 204843d6df00SEliad Peller 2049968a76ceSEliad Peller local->started = false; 2050968a76ceSEliad Peller 205143d6df00SEliad Peller /* 205224feda00SLuis R. Rodriguez * Upon resume hardware can sometimes be goofy due to 205324feda00SLuis R. Rodriguez * various platform / driver / bus issues, so restarting 205424feda00SLuis R. Rodriguez * the device may at times not work immediately. Propagate 205524feda00SLuis R. Rodriguez * the error. 205624feda00SLuis R. Rodriguez */ 205724487981SJohannes Berg res = drv_start(local); 205824feda00SLuis R. Rodriguez if (res) { 2059b0485e9fSEliad Peller if (suspended) 2060f6837ba8SJohannes Berg WARN(1, "Hardware became unavailable upon resume. This could be a software issue prior to suspend or a hardware issue.\n"); 2061f6837ba8SJohannes Berg else 2062f6837ba8SJohannes Berg WARN(1, "Hardware became unavailable during restart.\n"); 2063f6837ba8SJohannes Berg ieee80211_handle_reconfig_failure(local); 206424feda00SLuis R. Rodriguez return res; 206524feda00SLuis R. Rodriguez } 2066f2753ddbSJohannes Berg 20677f281975SYogesh Ashok Powar /* setup fragmentation threshold */ 20687f281975SYogesh Ashok Powar drv_set_frag_threshold(local, hw->wiphy->frag_threshold); 20697f281975SYogesh Ashok Powar 20707f281975SYogesh Ashok Powar /* setup RTS threshold */ 20717f281975SYogesh Ashok Powar drv_set_rts_threshold(local, hw->wiphy->rts_threshold); 20727f281975SYogesh Ashok Powar 20737f281975SYogesh Ashok Powar /* reset coverage class */ 20747f281975SYogesh Ashok Powar drv_set_coverage_class(local, hw->wiphy->coverage_class); 20757f281975SYogesh Ashok Powar 20761f87f7d3SJohannes Berg ieee80211_led_radio(local, true); 207767408c8cSJohannes Berg ieee80211_mod_tpt_led_trig(local, 207867408c8cSJohannes Berg IEEE80211_TPT_LEDTRIG_FL_RADIO, 0); 2079f2753ddbSJohannes Berg 2080f2753ddbSJohannes Berg /* add interfaces */ 20814b6f1dd6SJohannes Berg sdata = rtnl_dereference(local->monitor_sdata); 20824b6f1dd6SJohannes Berg if (sdata) { 20833c3e21e7SJohannes Berg /* in HW restart it exists already */ 20843c3e21e7SJohannes Berg WARN_ON(local->resuming); 20854b6f1dd6SJohannes Berg res = drv_add_interface(local, sdata); 20864b6f1dd6SJohannes Berg if (WARN_ON(res)) { 20870c2bef46SMonam Agarwal RCU_INIT_POINTER(local->monitor_sdata, NULL); 20884b6f1dd6SJohannes Berg synchronize_net(); 20894b6f1dd6SJohannes Berg kfree(sdata); 20904b6f1dd6SJohannes Berg } 20914b6f1dd6SJohannes Berg } 20924b6f1dd6SJohannes Berg 2093f2753ddbSJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 2094f2753ddbSJohannes Berg if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2095f2753ddbSJohannes Berg sdata->vif.type != NL80211_IFTYPE_MONITOR && 2096c8fff3dcSLuciano Coelho ieee80211_sdata_running(sdata)) { 20977b7eab6fSJohannes Berg res = drv_add_interface(local, sdata); 2098c8fff3dcSLuciano Coelho if (WARN_ON(res)) 2099c8fff3dcSLuciano Coelho break; 2100c8fff3dcSLuciano Coelho } 2101c8fff3dcSLuciano Coelho } 2102c8fff3dcSLuciano Coelho 2103c8fff3dcSLuciano Coelho /* If adding any of the interfaces failed above, roll back and 2104c8fff3dcSLuciano Coelho * report failure. 2105c8fff3dcSLuciano Coelho */ 2106c8fff3dcSLuciano Coelho if (res) { 2107c8fff3dcSLuciano Coelho list_for_each_entry_continue_reverse(sdata, &local->interfaces, 2108c8fff3dcSLuciano Coelho list) 2109c8fff3dcSLuciano Coelho if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2110c8fff3dcSLuciano Coelho sdata->vif.type != NL80211_IFTYPE_MONITOR && 2111c8fff3dcSLuciano Coelho ieee80211_sdata_running(sdata)) 2112c8fff3dcSLuciano Coelho drv_remove_interface(local, sdata); 2113c8fff3dcSLuciano Coelho ieee80211_handle_reconfig_failure(local); 2114c8fff3dcSLuciano Coelho return res; 2115f2753ddbSJohannes Berg } 2116f2753ddbSJohannes Berg 211755de908aSJohannes Berg /* add channel contexts */ 2118f0dea9c7SArend van Spriel if (local->use_chanctx) { 211955de908aSJohannes Berg mutex_lock(&local->chanctx_mtx); 212055de908aSJohannes Berg list_for_each_entry(ctx, &local->chanctx_list, list) 21215bcae31dSMichal Kazior if (ctx->replace_state != 21225bcae31dSMichal Kazior IEEE80211_CHANCTX_REPLACES_OTHER) 212355de908aSJohannes Berg WARN_ON(drv_add_chanctx(local, ctx)); 212455de908aSJohannes Berg mutex_unlock(&local->chanctx_mtx); 212555de908aSJohannes Berg 2126fe5f2559SJohannes Berg sdata = rtnl_dereference(local->monitor_sdata); 2127153a5fc4SStanislaw Gruszka if (sdata && ieee80211_sdata_running(sdata)) 2128153a5fc4SStanislaw Gruszka ieee80211_assign_chanctx(local, sdata); 21297df180f7SZhao, Gang } 2130fe5f2559SJohannes Berg 2131f2753ddbSJohannes Berg /* reconfigure hardware */ 2132f2753ddbSJohannes Berg ieee80211_hw_config(local, ~0); 2133f2753ddbSJohannes Berg 2134f2753ddbSJohannes Berg ieee80211_configure_filter(local); 2135f2753ddbSJohannes Berg 2136f2753ddbSJohannes Berg /* Finally also reconfigure all the BSS information */ 2137f2753ddbSJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 2138ac8dd506SJohannes Berg u32 changed; 2139ac8dd506SJohannes Berg 21409607e6b6SJohannes Berg if (!ieee80211_sdata_running(sdata)) 2141f2753ddbSJohannes Berg continue; 2142ac8dd506SJohannes Berg 21431ea2c864SJohannes Berg ieee80211_assign_chanctx(local, sdata); 21441ea2c864SJohannes Berg 21451ea2c864SJohannes Berg switch (sdata->vif.type) { 21461ea2c864SJohannes Berg case NL80211_IFTYPE_AP_VLAN: 21471ea2c864SJohannes Berg case NL80211_IFTYPE_MONITOR: 21481ea2c864SJohannes Berg break; 21491ea2c864SJohannes Berg default: 21501ea2c864SJohannes Berg ieee80211_reconfig_stations(sdata); 21511ea2c864SJohannes Berg /* fall through */ 21521ea2c864SJohannes Berg case NL80211_IFTYPE_AP: /* AP stations are handled later */ 21531ea2c864SJohannes Berg for (i = 0; i < IEEE80211_NUM_ACS; i++) 21541ea2c864SJohannes Berg drv_conf_tx(local, sdata, i, 21551ea2c864SJohannes Berg &sdata->tx_conf[i]); 21561ea2c864SJohannes Berg break; 21571ea2c864SJohannes Berg } 21581ea2c864SJohannes Berg 2159ac8dd506SJohannes Berg /* common change flags for all interface types */ 2160ac8dd506SJohannes Berg changed = BSS_CHANGED_ERP_CTS_PROT | 2161ac8dd506SJohannes Berg BSS_CHANGED_ERP_PREAMBLE | 2162ac8dd506SJohannes Berg BSS_CHANGED_ERP_SLOT | 2163ac8dd506SJohannes Berg BSS_CHANGED_HT | 2164ac8dd506SJohannes Berg BSS_CHANGED_BASIC_RATES | 2165ac8dd506SJohannes Berg BSS_CHANGED_BEACON_INT | 2166ac8dd506SJohannes Berg BSS_CHANGED_BSSID | 21674ced3f74SJohannes Berg BSS_CHANGED_CQM | 216855de47f6SEliad Peller BSS_CHANGED_QOS | 21691ea6f9c0SJohannes Berg BSS_CHANGED_IDLE | 2170dcbe73caSPradeep Kumar Chitrapu BSS_CHANGED_TXPOWER | 2171dcbe73caSPradeep Kumar Chitrapu BSS_CHANGED_MCAST_RATE; 2172ac8dd506SJohannes Berg 2173b5a33d52SSara Sharon if (sdata->vif.mu_mimo_owner) 217423a1f8d4SSara Sharon changed |= BSS_CHANGED_MU_GROUPS; 217523a1f8d4SSara Sharon 2176f2753ddbSJohannes Berg switch (sdata->vif.type) { 2177f2753ddbSJohannes Berg case NL80211_IFTYPE_STATION: 21780d392e93SEliad Peller changed |= BSS_CHANGED_ASSOC | 2179ab095877SEliad Peller BSS_CHANGED_ARP_FILTER | 2180ab095877SEliad Peller BSS_CHANGED_PS; 2181c65dd147SEmmanuel Grumbach 2182989c6505SAlexander Bondar /* Re-send beacon info report to the driver */ 2183989c6505SAlexander Bondar if (sdata->u.mgd.have_beacon) 2184989c6505SAlexander Bondar changed |= BSS_CHANGED_BEACON_INFO; 2185c65dd147SEmmanuel Grumbach 2186e38a017bSAvraham Stern if (sdata->vif.bss_conf.max_idle_period || 2187e38a017bSAvraham Stern sdata->vif.bss_conf.protected_keep_alive) 2188e38a017bSAvraham Stern changed |= BSS_CHANGED_KEEP_ALIVE; 2189e38a017bSAvraham Stern 21908d61ffa5SJohannes Berg sdata_lock(sdata); 2191ac8dd506SJohannes Berg ieee80211_bss_info_change_notify(sdata, changed); 21928d61ffa5SJohannes Berg sdata_unlock(sdata); 2193ac8dd506SJohannes Berg break; 21946e0bd6c3SRostislav Lisovy case NL80211_IFTYPE_OCB: 2195239281f8SRostislav Lisovy changed |= BSS_CHANGED_OCB; 2196239281f8SRostislav Lisovy ieee80211_bss_info_change_notify(sdata, changed); 21976e0bd6c3SRostislav Lisovy break; 2198f2753ddbSJohannes Berg case NL80211_IFTYPE_ADHOC: 2199ac8dd506SJohannes Berg changed |= BSS_CHANGED_IBSS; 2200ac8dd506SJohannes Berg /* fall through */ 2201f2753ddbSJohannes Berg case NL80211_IFTYPE_AP: 2202339afbf4SJohannes Berg changed |= BSS_CHANGED_SSID | BSS_CHANGED_P2P_PS; 2203e7979ac7SArik Nemtsov 2204bc847970SPradeep Kumar Chitrapu if (sdata->vif.bss_conf.ftm_responder == 1 && 2205bc847970SPradeep Kumar Chitrapu wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2206bc847970SPradeep Kumar Chitrapu NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER)) 2207bc847970SPradeep Kumar Chitrapu changed |= BSS_CHANGED_FTM_RESPONDER; 2208bc847970SPradeep Kumar Chitrapu 22091041638fSJohannes Berg if (sdata->vif.type == NL80211_IFTYPE_AP) { 2210e7979ac7SArik Nemtsov changed |= BSS_CHANGED_AP_PROBE_RESP; 2211e7979ac7SArik Nemtsov 22121041638fSJohannes Berg if (rcu_access_pointer(sdata->u.ap.beacon)) 22131041638fSJohannes Berg drv_start_ap(local, sdata); 22141041638fSJohannes Berg } 22151041638fSJohannes Berg 22167827493bSArik Nemtsov /* fall through */ 2217f2753ddbSJohannes Berg case NL80211_IFTYPE_MESH_POINT: 22188da34932SJohannes Berg if (sdata->vif.bss_conf.enable_beacon) { 2219ac8dd506SJohannes Berg changed |= BSS_CHANGED_BEACON | 2220ac8dd506SJohannes Berg BSS_CHANGED_BEACON_ENABLED; 22212d0ddec5SJohannes Berg ieee80211_bss_info_change_notify(sdata, changed); 22228da34932SJohannes Berg } 2223f2753ddbSJohannes Berg break; 2224167e33f4SAyala Beker case NL80211_IFTYPE_NAN: 2225167e33f4SAyala Beker res = ieee80211_reconfig_nan(sdata); 2226167e33f4SAyala Beker if (res < 0) { 2227167e33f4SAyala Beker ieee80211_handle_reconfig_failure(local); 2228167e33f4SAyala Beker return res; 2229167e33f4SAyala Beker } 2230167e33f4SAyala Beker break; 2231f2753ddbSJohannes Berg case NL80211_IFTYPE_WDS: 2232f2753ddbSJohannes Berg case NL80211_IFTYPE_AP_VLAN: 2233f2753ddbSJohannes Berg case NL80211_IFTYPE_MONITOR: 223498104fdeSJohannes Berg case NL80211_IFTYPE_P2P_DEVICE: 2235b205786eSZhao, Gang /* nothing to do */ 2236f142c6b9SJohannes Berg break; 2237f2753ddbSJohannes Berg case NL80211_IFTYPE_UNSPECIFIED: 22382e161f78SJohannes Berg case NUM_NL80211_IFTYPES: 22392ca27bcfSJohannes Berg case NL80211_IFTYPE_P2P_CLIENT: 22402ca27bcfSJohannes Berg case NL80211_IFTYPE_P2P_GO: 2241f2753ddbSJohannes Berg WARN_ON(1); 2242f2753ddbSJohannes Berg break; 2243f2753ddbSJohannes Berg } 2244f2753ddbSJohannes Berg } 2245f2753ddbSJohannes Berg 22464a733ef1SJohannes Berg ieee80211_recalc_ps(local); 22478e1b23b9SEyal Shapira 22482a419056SJohannes Berg /* 22496e1b1b24SEliad Peller * The sta might be in psm against the ap (e.g. because 22506e1b1b24SEliad Peller * this was the state before a hw restart), so we 22516e1b1b24SEliad Peller * explicitly send a null packet in order to make sure 22526e1b1b24SEliad Peller * it'll sync against the ap (and get out of psm). 22536e1b1b24SEliad Peller */ 22546e1b1b24SEliad Peller if (!(local->hw.conf.flags & IEEE80211_CONF_PS)) { 22556e1b1b24SEliad Peller list_for_each_entry(sdata, &local->interfaces, list) { 22566e1b1b24SEliad Peller if (sdata->vif.type != NL80211_IFTYPE_STATION) 22576e1b1b24SEliad Peller continue; 225820f544eeSJohannes Berg if (!sdata->u.mgd.associated) 225920f544eeSJohannes Berg continue; 22606e1b1b24SEliad Peller 2261076cdcb1SJohannes Berg ieee80211_send_nullfunc(local, sdata, false); 22626e1b1b24SEliad Peller } 22636e1b1b24SEliad Peller } 22646e1b1b24SEliad Peller 22652e8d397eSArik Nemtsov /* APs are now beaconing, add back stations */ 22662e8d397eSArik Nemtsov mutex_lock(&local->sta_mtx); 22672e8d397eSArik Nemtsov list_for_each_entry(sta, &local->sta_list, list) { 22682e8d397eSArik Nemtsov enum ieee80211_sta_state state; 22692e8d397eSArik Nemtsov 22702e8d397eSArik Nemtsov if (!sta->uploaded) 22712e8d397eSArik Nemtsov continue; 22722e8d397eSArik Nemtsov 227319103a4bSmpubbise@codeaurora.org if (sta->sdata->vif.type != NL80211_IFTYPE_AP && 227419103a4bSmpubbise@codeaurora.org sta->sdata->vif.type != NL80211_IFTYPE_AP_VLAN) 22752e8d397eSArik Nemtsov continue; 22762e8d397eSArik Nemtsov 22772e8d397eSArik Nemtsov for (state = IEEE80211_STA_NOTEXIST; 22782e8d397eSArik Nemtsov state < sta->sta_state; state++) 22792e8d397eSArik Nemtsov WARN_ON(drv_sta_state(local, sta->sdata, sta, state, 22802e8d397eSArik Nemtsov state + 1)); 22812e8d397eSArik Nemtsov } 22822e8d397eSArik Nemtsov mutex_unlock(&local->sta_mtx); 22832e8d397eSArik Nemtsov 22847b21aea0SEyal Shapira /* add back keys */ 22857b21aea0SEyal Shapira list_for_each_entry(sdata, &local->interfaces, list) 2286f9dca80bSMichal Kazior ieee80211_reset_crypto_tx_tailroom(sdata); 2287f9dca80bSMichal Kazior 2288f9dca80bSMichal Kazior list_for_each_entry(sdata, &local->interfaces, list) 22897b21aea0SEyal Shapira if (ieee80211_sdata_running(sdata)) 22907b21aea0SEyal Shapira ieee80211_enable_keys(sdata); 22917b21aea0SEyal Shapira 22920d440ea2SEliad Peller /* Reconfigure sched scan if it was interrupted by FW restart */ 22930d440ea2SEliad Peller mutex_lock(&local->mtx); 22940d440ea2SEliad Peller sched_scan_sdata = rcu_dereference_protected(local->sched_scan_sdata, 22950d440ea2SEliad Peller lockdep_is_held(&local->mtx)); 22960d440ea2SEliad Peller sched_scan_req = rcu_dereference_protected(local->sched_scan_req, 22970d440ea2SEliad Peller lockdep_is_held(&local->mtx)); 22980d440ea2SEliad Peller if (sched_scan_sdata && sched_scan_req) 22990d440ea2SEliad Peller /* 23000d440ea2SEliad Peller * Sched scan stopped, but we don't want to report it. Instead, 23010d440ea2SEliad Peller * we're trying to reschedule. However, if more than one scan 23020d440ea2SEliad Peller * plan was set, we cannot reschedule since we don't know which 23030d440ea2SEliad Peller * scan plan was currently running (and some scan plans may have 23040d440ea2SEliad Peller * already finished). 23050d440ea2SEliad Peller */ 23060d440ea2SEliad Peller if (sched_scan_req->n_scan_plans > 1 || 23070d440ea2SEliad Peller __ieee80211_request_sched_scan_start(sched_scan_sdata, 2308b9f628fcSEliad Peller sched_scan_req)) { 2309b9f628fcSEliad Peller RCU_INIT_POINTER(local->sched_scan_sdata, NULL); 2310b9f628fcSEliad Peller RCU_INIT_POINTER(local->sched_scan_req, NULL); 23110d440ea2SEliad Peller sched_scan_stopped = true; 2312b9f628fcSEliad Peller } 23130d440ea2SEliad Peller mutex_unlock(&local->mtx); 23140d440ea2SEliad Peller 23150d440ea2SEliad Peller if (sched_scan_stopped) 2316b34939b9SArend Van Spriel cfg80211_sched_scan_stopped_rtnl(local->hw.wiphy, 0); 23170d440ea2SEliad Peller 2318c6209488SEliad Peller wake_up: 2319470f4d61SEliad Peller 23203c3e21e7SJohannes Berg if (local->monitors == local->open_count && local->monitors > 0) 23213c3e21e7SJohannes Berg ieee80211_add_virtual_monitor(local); 23223c3e21e7SJohannes Berg 23236e1b1b24SEliad Peller /* 23242a419056SJohannes Berg * Clear the WLAN_STA_BLOCK_BA flag so new aggregation 23252a419056SJohannes Berg * sessions can be established after a resume. 23262a419056SJohannes Berg * 23272a419056SJohannes Berg * Also tear down aggregation sessions since reconfiguring 23282a419056SJohannes Berg * them in a hardware restart scenario is not easily done 23292a419056SJohannes Berg * right now, and the hardware will have lost information 23302a419056SJohannes Berg * about the sessions, but we and the AP still think they 23312a419056SJohannes Berg * are active. This is really a workaround though. 23322a419056SJohannes Berg */ 233330686bf7SJohannes Berg if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) { 23342a419056SJohannes Berg mutex_lock(&local->sta_mtx); 23352a419056SJohannes Berg 23362a419056SJohannes Berg list_for_each_entry(sta, &local->sta_list, list) { 233727392719SEliad Peller if (!local->resuming) 2338c82c4a80SJohannes Berg ieee80211_sta_tear_down_BA_sessions( 2339c82c4a80SJohannes Berg sta, AGG_STOP_LOCAL_REQUEST); 2340c2c98fdeSJohannes Berg clear_sta_flag(sta, WLAN_STA_BLOCK_BA); 234174e2bd1fSWey-Yi Guy } 23422a419056SJohannes Berg 23432a419056SJohannes Berg mutex_unlock(&local->sta_mtx); 234474e2bd1fSWey-Yi Guy } 234574e2bd1fSWey-Yi Guy 23462316380fSSara Sharon if (local->in_reconfig) { 23472316380fSSara Sharon local->in_reconfig = false; 23482316380fSSara Sharon barrier(); 23492316380fSSara Sharon 23502316380fSSara Sharon /* Restart deferred ROCs */ 23512316380fSSara Sharon mutex_lock(&local->mtx); 23522316380fSSara Sharon ieee80211_start_next_roc(local); 23532316380fSSara Sharon mutex_unlock(&local->mtx); 23542316380fSSara Sharon } 23552316380fSSara Sharon 2356445ea4e8SJohannes Berg ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, 2357cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_SUSPEND, 2358cca07b00SLuciano Coelho false); 2359f2753ddbSJohannes Berg 23605bb644a0SJohannes Berg /* 23615bb644a0SJohannes Berg * If this is for hw restart things are still running. 23625bb644a0SJohannes Berg * We may want to change that later, however. 23635bb644a0SJohannes Berg */ 2364b0485e9fSEliad Peller if (local->open_count && (!suspended || reconfig_due_to_wowlan)) 2365cf2c92d8SEliad Peller drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_RESTART); 23668f21b0adSJohannes Berg 2367b0485e9fSEliad Peller if (!suspended) 23685bb644a0SJohannes Berg return 0; 23695bb644a0SJohannes Berg 23705bb644a0SJohannes Berg #ifdef CONFIG_PM 2371ceb99fe0SJohannes Berg /* first set suspended false, then resuming */ 23725bb644a0SJohannes Berg local->suspended = false; 2373ceb99fe0SJohannes Berg mb(); 2374ceb99fe0SJohannes Berg local->resuming = false; 23755bb644a0SJohannes Berg 237674430f94SJohannes Berg ieee80211_flush_completed_scan(local, false); 23779120d94eSLuciano Coelho 23780f8b8245SEliad Peller if (local->open_count && !reconfig_due_to_wowlan) 2379cf2c92d8SEliad Peller drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_SUSPEND); 2380cf2c92d8SEliad Peller 2381b8360ab8SJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 2382b8360ab8SJohannes Berg if (!ieee80211_sdata_running(sdata)) 2383b8360ab8SJohannes Berg continue; 2384b8360ab8SJohannes Berg if (sdata->vif.type == NL80211_IFTYPE_STATION) 2385b8360ab8SJohannes Berg ieee80211_sta_restart(sdata); 2386b8360ab8SJohannes Berg } 2387b8360ab8SJohannes Berg 238826d59535SJohannes Berg mod_timer(&local->sta_cleanup, jiffies + 1); 23895bb644a0SJohannes Berg #else 23905bb644a0SJohannes Berg WARN_ON(1); 23915bb644a0SJohannes Berg #endif 2392d43c6b6eSDavid Spinadel 2393f2753ddbSJohannes Berg return 0; 2394f2753ddbSJohannes Berg } 239542935ecaSLuis R. Rodriguez 239695acac61SJohannes Berg void ieee80211_resume_disconnect(struct ieee80211_vif *vif) 239795acac61SJohannes Berg { 239895acac61SJohannes Berg struct ieee80211_sub_if_data *sdata; 239995acac61SJohannes Berg struct ieee80211_local *local; 240095acac61SJohannes Berg struct ieee80211_key *key; 240195acac61SJohannes Berg 240295acac61SJohannes Berg if (WARN_ON(!vif)) 240395acac61SJohannes Berg return; 240495acac61SJohannes Berg 240595acac61SJohannes Berg sdata = vif_to_sdata(vif); 240695acac61SJohannes Berg local = sdata->local; 240795acac61SJohannes Berg 240895acac61SJohannes Berg if (WARN_ON(!local->resuming)) 240995acac61SJohannes Berg return; 241095acac61SJohannes Berg 241195acac61SJohannes Berg if (WARN_ON(vif->type != NL80211_IFTYPE_STATION)) 241295acac61SJohannes Berg return; 241395acac61SJohannes Berg 241495acac61SJohannes Berg sdata->flags |= IEEE80211_SDATA_DISCONNECT_RESUME; 241595acac61SJohannes Berg 241695acac61SJohannes Berg mutex_lock(&local->key_mtx); 241795acac61SJohannes Berg list_for_each_entry(key, &sdata->key_list, list) 241895acac61SJohannes Berg key->flags |= KEY_FLAG_TAINTED; 241995acac61SJohannes Berg mutex_unlock(&local->key_mtx); 242095acac61SJohannes Berg } 242195acac61SJohannes Berg EXPORT_SYMBOL_GPL(ieee80211_resume_disconnect); 242295acac61SJohannes Berg 242304ecd257SJohannes Berg void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata) 24240f78231bSJohannes Berg { 242504ecd257SJohannes Berg struct ieee80211_local *local = sdata->local; 242604ecd257SJohannes Berg struct ieee80211_chanctx_conf *chanctx_conf; 242704ecd257SJohannes Berg struct ieee80211_chanctx *chanctx; 24280f78231bSJohannes Berg 242904ecd257SJohannes Berg mutex_lock(&local->chanctx_mtx); 24300f78231bSJohannes Berg 243104ecd257SJohannes Berg chanctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 243204ecd257SJohannes Berg lockdep_is_held(&local->chanctx_mtx)); 24330f78231bSJohannes Berg 2434c189a685SAndrei Otcheretianski /* 2435c189a685SAndrei Otcheretianski * This function can be called from a work, thus it may be possible 2436c189a685SAndrei Otcheretianski * that the chanctx_conf is removed (due to a disconnection, for 2437c189a685SAndrei Otcheretianski * example). 2438c189a685SAndrei Otcheretianski * So nothing should be done in such case. 2439c189a685SAndrei Otcheretianski */ 2440c189a685SAndrei Otcheretianski if (!chanctx_conf) 24415d8e4237SJohannes Berg goto unlock; 24420f78231bSJohannes Berg 244304ecd257SJohannes Berg chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); 244404ecd257SJohannes Berg ieee80211_recalc_smps_chanctx(local, chanctx); 24455d8e4237SJohannes Berg unlock: 244604ecd257SJohannes Berg mutex_unlock(&local->chanctx_mtx); 24470f78231bSJohannes Berg } 24488e664fb3SJohannes Berg 244921f659bfSEliad Peller void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata) 245021f659bfSEliad Peller { 245121f659bfSEliad Peller struct ieee80211_local *local = sdata->local; 245221f659bfSEliad Peller struct ieee80211_chanctx_conf *chanctx_conf; 245321f659bfSEliad Peller struct ieee80211_chanctx *chanctx; 245421f659bfSEliad Peller 245521f659bfSEliad Peller mutex_lock(&local->chanctx_mtx); 245621f659bfSEliad Peller 245721f659bfSEliad Peller chanctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 245821f659bfSEliad Peller lockdep_is_held(&local->chanctx_mtx)); 245921f659bfSEliad Peller 246021f659bfSEliad Peller if (WARN_ON_ONCE(!chanctx_conf)) 246121f659bfSEliad Peller goto unlock; 246221f659bfSEliad Peller 246321f659bfSEliad Peller chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); 246421f659bfSEliad Peller ieee80211_recalc_chanctx_min_def(local, chanctx); 246521f659bfSEliad Peller unlock: 246621f659bfSEliad Peller mutex_unlock(&local->chanctx_mtx); 246721f659bfSEliad Peller } 246821f659bfSEliad Peller 24698e664fb3SJohannes Berg size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset) 24708e664fb3SJohannes Berg { 24718e664fb3SJohannes Berg size_t pos = offset; 24728e664fb3SJohannes Berg 24738e664fb3SJohannes Berg while (pos < ielen && ies[pos] != WLAN_EID_VENDOR_SPECIFIC) 24748e664fb3SJohannes Berg pos += 2 + ies[pos + 1]; 24758e664fb3SJohannes Berg 24768e664fb3SJohannes Berg return pos; 24778e664fb3SJohannes Berg } 2478615f7b9bSMeenakshi Venkataraman 2479615f7b9bSMeenakshi Venkataraman static void _ieee80211_enable_rssi_reports(struct ieee80211_sub_if_data *sdata, 2480615f7b9bSMeenakshi Venkataraman int rssi_min_thold, 2481615f7b9bSMeenakshi Venkataraman int rssi_max_thold) 2482615f7b9bSMeenakshi Venkataraman { 2483615f7b9bSMeenakshi Venkataraman trace_api_enable_rssi_reports(sdata, rssi_min_thold, rssi_max_thold); 2484615f7b9bSMeenakshi Venkataraman 2485615f7b9bSMeenakshi Venkataraman if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) 2486615f7b9bSMeenakshi Venkataraman return; 2487615f7b9bSMeenakshi Venkataraman 2488615f7b9bSMeenakshi Venkataraman /* 2489615f7b9bSMeenakshi Venkataraman * Scale up threshold values before storing it, as the RSSI averaging 2490615f7b9bSMeenakshi Venkataraman * algorithm uses a scaled up value as well. Change this scaling 2491615f7b9bSMeenakshi Venkataraman * factor if the RSSI averaging algorithm changes. 2492615f7b9bSMeenakshi Venkataraman */ 2493615f7b9bSMeenakshi Venkataraman sdata->u.mgd.rssi_min_thold = rssi_min_thold*16; 2494615f7b9bSMeenakshi Venkataraman sdata->u.mgd.rssi_max_thold = rssi_max_thold*16; 2495615f7b9bSMeenakshi Venkataraman } 2496615f7b9bSMeenakshi Venkataraman 2497615f7b9bSMeenakshi Venkataraman void ieee80211_enable_rssi_reports(struct ieee80211_vif *vif, 2498615f7b9bSMeenakshi Venkataraman int rssi_min_thold, 2499615f7b9bSMeenakshi Venkataraman int rssi_max_thold) 2500615f7b9bSMeenakshi Venkataraman { 2501615f7b9bSMeenakshi Venkataraman struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2502615f7b9bSMeenakshi Venkataraman 2503615f7b9bSMeenakshi Venkataraman WARN_ON(rssi_min_thold == rssi_max_thold || 2504615f7b9bSMeenakshi Venkataraman rssi_min_thold > rssi_max_thold); 2505615f7b9bSMeenakshi Venkataraman 2506615f7b9bSMeenakshi Venkataraman _ieee80211_enable_rssi_reports(sdata, rssi_min_thold, 2507615f7b9bSMeenakshi Venkataraman rssi_max_thold); 2508615f7b9bSMeenakshi Venkataraman } 2509615f7b9bSMeenakshi Venkataraman EXPORT_SYMBOL(ieee80211_enable_rssi_reports); 2510615f7b9bSMeenakshi Venkataraman 2511615f7b9bSMeenakshi Venkataraman void ieee80211_disable_rssi_reports(struct ieee80211_vif *vif) 2512615f7b9bSMeenakshi Venkataraman { 2513615f7b9bSMeenakshi Venkataraman struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2514615f7b9bSMeenakshi Venkataraman 2515615f7b9bSMeenakshi Venkataraman _ieee80211_enable_rssi_reports(sdata, 0, 0); 2516615f7b9bSMeenakshi Venkataraman } 2517615f7b9bSMeenakshi Venkataraman EXPORT_SYMBOL(ieee80211_disable_rssi_reports); 2518768db343SArik Nemtsov 2519ef96a842SBen Greear u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 252042e7aa77SAlexander Simon u16 cap) 252142e7aa77SAlexander Simon { 252242e7aa77SAlexander Simon __le16 tmp; 252342e7aa77SAlexander Simon 252442e7aa77SAlexander Simon *pos++ = WLAN_EID_HT_CAPABILITY; 252542e7aa77SAlexander Simon *pos++ = sizeof(struct ieee80211_ht_cap); 252642e7aa77SAlexander Simon memset(pos, 0, sizeof(struct ieee80211_ht_cap)); 252742e7aa77SAlexander Simon 252842e7aa77SAlexander Simon /* capability flags */ 252942e7aa77SAlexander Simon tmp = cpu_to_le16(cap); 253042e7aa77SAlexander Simon memcpy(pos, &tmp, sizeof(u16)); 253142e7aa77SAlexander Simon pos += sizeof(u16); 253242e7aa77SAlexander Simon 253342e7aa77SAlexander Simon /* AMPDU parameters */ 2534ef96a842SBen Greear *pos++ = ht_cap->ampdu_factor | 2535ef96a842SBen Greear (ht_cap->ampdu_density << 253642e7aa77SAlexander Simon IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT); 253742e7aa77SAlexander Simon 253842e7aa77SAlexander Simon /* MCS set */ 2539ef96a842SBen Greear memcpy(pos, &ht_cap->mcs, sizeof(ht_cap->mcs)); 2540ef96a842SBen Greear pos += sizeof(ht_cap->mcs); 254142e7aa77SAlexander Simon 254242e7aa77SAlexander Simon /* extended capabilities */ 254342e7aa77SAlexander Simon pos += sizeof(__le16); 254442e7aa77SAlexander Simon 254542e7aa77SAlexander Simon /* BF capabilities */ 254642e7aa77SAlexander Simon pos += sizeof(__le32); 254742e7aa77SAlexander Simon 254842e7aa77SAlexander Simon /* antenna selection */ 254942e7aa77SAlexander Simon pos += sizeof(u8); 255042e7aa77SAlexander Simon 255142e7aa77SAlexander Simon return pos; 255242e7aa77SAlexander Simon } 255342e7aa77SAlexander Simon 2554ba0afa2fSMahesh Palivela u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2555ba0afa2fSMahesh Palivela u32 cap) 2556ba0afa2fSMahesh Palivela { 2557ba0afa2fSMahesh Palivela __le32 tmp; 2558ba0afa2fSMahesh Palivela 2559ba0afa2fSMahesh Palivela *pos++ = WLAN_EID_VHT_CAPABILITY; 2560d4950281SMahesh Palivela *pos++ = sizeof(struct ieee80211_vht_cap); 2561d4950281SMahesh Palivela memset(pos, 0, sizeof(struct ieee80211_vht_cap)); 2562ba0afa2fSMahesh Palivela 2563ba0afa2fSMahesh Palivela /* capability flags */ 2564ba0afa2fSMahesh Palivela tmp = cpu_to_le32(cap); 2565ba0afa2fSMahesh Palivela memcpy(pos, &tmp, sizeof(u32)); 2566ba0afa2fSMahesh Palivela pos += sizeof(u32); 2567ba0afa2fSMahesh Palivela 2568ba0afa2fSMahesh Palivela /* VHT MCS set */ 2569ba0afa2fSMahesh Palivela memcpy(pos, &vht_cap->vht_mcs, sizeof(vht_cap->vht_mcs)); 2570ba0afa2fSMahesh Palivela pos += sizeof(vht_cap->vht_mcs); 2571ba0afa2fSMahesh Palivela 2572ba0afa2fSMahesh Palivela return pos; 2573ba0afa2fSMahesh Palivela } 2574ba0afa2fSMahesh Palivela 257541cbb0f5SLuca Coelho u8 *ieee80211_ie_build_he_cap(u8 *pos, 257641cbb0f5SLuca Coelho const struct ieee80211_sta_he_cap *he_cap, 257741cbb0f5SLuca Coelho u8 *end) 257841cbb0f5SLuca Coelho { 257941cbb0f5SLuca Coelho u8 n; 258041cbb0f5SLuca Coelho u8 ie_len; 258141cbb0f5SLuca Coelho u8 *orig_pos = pos; 258241cbb0f5SLuca Coelho 258341cbb0f5SLuca Coelho /* Make sure we have place for the IE */ 258441cbb0f5SLuca Coelho /* 258541cbb0f5SLuca Coelho * TODO: the 1 added is because this temporarily is under the EXTENSION 258641cbb0f5SLuca Coelho * IE. Get rid of it when it moves. 258741cbb0f5SLuca Coelho */ 258841cbb0f5SLuca Coelho if (!he_cap) 258941cbb0f5SLuca Coelho return orig_pos; 259041cbb0f5SLuca Coelho 259141cbb0f5SLuca Coelho n = ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem); 259241cbb0f5SLuca Coelho ie_len = 2 + 1 + 259341cbb0f5SLuca Coelho sizeof(he_cap->he_cap_elem) + n + 259441cbb0f5SLuca Coelho ieee80211_he_ppe_size(he_cap->ppe_thres[0], 259541cbb0f5SLuca Coelho he_cap->he_cap_elem.phy_cap_info); 259641cbb0f5SLuca Coelho 259741cbb0f5SLuca Coelho if ((end - pos) < ie_len) 259841cbb0f5SLuca Coelho return orig_pos; 259941cbb0f5SLuca Coelho 260041cbb0f5SLuca Coelho *pos++ = WLAN_EID_EXTENSION; 260141cbb0f5SLuca Coelho pos++; /* We'll set the size later below */ 260241cbb0f5SLuca Coelho *pos++ = WLAN_EID_EXT_HE_CAPABILITY; 260341cbb0f5SLuca Coelho 260441cbb0f5SLuca Coelho /* Fixed data */ 260541cbb0f5SLuca Coelho memcpy(pos, &he_cap->he_cap_elem, sizeof(he_cap->he_cap_elem)); 260641cbb0f5SLuca Coelho pos += sizeof(he_cap->he_cap_elem); 260741cbb0f5SLuca Coelho 260841cbb0f5SLuca Coelho memcpy(pos, &he_cap->he_mcs_nss_supp, n); 260941cbb0f5SLuca Coelho pos += n; 261041cbb0f5SLuca Coelho 261141cbb0f5SLuca Coelho /* Check if PPE Threshold should be present */ 261241cbb0f5SLuca Coelho if ((he_cap->he_cap_elem.phy_cap_info[6] & 261341cbb0f5SLuca Coelho IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0) 261441cbb0f5SLuca Coelho goto end; 261541cbb0f5SLuca Coelho 261641cbb0f5SLuca Coelho /* 261741cbb0f5SLuca Coelho * Calculate how many PPET16/PPET8 pairs are to come. Algorithm: 261841cbb0f5SLuca Coelho * (NSS_M1 + 1) x (num of 1 bits in RU_INDEX_BITMASK) 261941cbb0f5SLuca Coelho */ 262041cbb0f5SLuca Coelho n = hweight8(he_cap->ppe_thres[0] & 262141cbb0f5SLuca Coelho IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 262241cbb0f5SLuca Coelho n *= (1 + ((he_cap->ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) >> 262341cbb0f5SLuca Coelho IEEE80211_PPE_THRES_NSS_POS)); 262441cbb0f5SLuca Coelho 262541cbb0f5SLuca Coelho /* 262641cbb0f5SLuca Coelho * Each pair is 6 bits, and we need to add the 7 "header" bits to the 262741cbb0f5SLuca Coelho * total size. 262841cbb0f5SLuca Coelho */ 262941cbb0f5SLuca Coelho n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7; 263041cbb0f5SLuca Coelho n = DIV_ROUND_UP(n, 8); 263141cbb0f5SLuca Coelho 263241cbb0f5SLuca Coelho /* Copy PPE Thresholds */ 263341cbb0f5SLuca Coelho memcpy(pos, &he_cap->ppe_thres, n); 263441cbb0f5SLuca Coelho pos += n; 263541cbb0f5SLuca Coelho 263641cbb0f5SLuca Coelho end: 263741cbb0f5SLuca Coelho orig_pos[1] = (pos - orig_pos) - 2; 263841cbb0f5SLuca Coelho return pos; 263941cbb0f5SLuca Coelho } 264041cbb0f5SLuca Coelho 2641074d46d1SJohannes Berg u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 26424bf88530SJohannes Berg const struct cfg80211_chan_def *chandef, 264357f255f5SArik Nemtsov u16 prot_mode, bool rifs_mode) 264442e7aa77SAlexander Simon { 2645074d46d1SJohannes Berg struct ieee80211_ht_operation *ht_oper; 264642e7aa77SAlexander Simon /* Build HT Information */ 2647074d46d1SJohannes Berg *pos++ = WLAN_EID_HT_OPERATION; 2648074d46d1SJohannes Berg *pos++ = sizeof(struct ieee80211_ht_operation); 2649074d46d1SJohannes Berg ht_oper = (struct ieee80211_ht_operation *)pos; 26504bf88530SJohannes Berg ht_oper->primary_chan = ieee80211_frequency_to_channel( 26514bf88530SJohannes Berg chandef->chan->center_freq); 26524bf88530SJohannes Berg switch (chandef->width) { 26534bf88530SJohannes Berg case NL80211_CHAN_WIDTH_160: 26544bf88530SJohannes Berg case NL80211_CHAN_WIDTH_80P80: 26554bf88530SJohannes Berg case NL80211_CHAN_WIDTH_80: 26564bf88530SJohannes Berg case NL80211_CHAN_WIDTH_40: 26574bf88530SJohannes Berg if (chandef->center_freq1 > chandef->chan->center_freq) 26584bf88530SJohannes Berg ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; 26594bf88530SJohannes Berg else 2660074d46d1SJohannes Berg ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW; 266142e7aa77SAlexander Simon break; 266242e7aa77SAlexander Simon default: 2663074d46d1SJohannes Berg ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_NONE; 266442e7aa77SAlexander Simon break; 266542e7aa77SAlexander Simon } 2666aee286c2SThomas Pedersen if (ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 && 26674bf88530SJohannes Berg chandef->width != NL80211_CHAN_WIDTH_20_NOHT && 26684bf88530SJohannes Berg chandef->width != NL80211_CHAN_WIDTH_20) 2669074d46d1SJohannes Berg ht_oper->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY; 2670ff3cc5f4SSimon Wunderlich 267157f255f5SArik Nemtsov if (rifs_mode) 267257f255f5SArik Nemtsov ht_oper->ht_param |= IEEE80211_HT_PARAM_RIFS_MODE; 267357f255f5SArik Nemtsov 2674431e3154SAshok Nagarajan ht_oper->operation_mode = cpu_to_le16(prot_mode); 2675074d46d1SJohannes Berg ht_oper->stbc_param = 0x0000; 267642e7aa77SAlexander Simon 267742e7aa77SAlexander Simon /* It seems that Basic MCS set and Supported MCS set 267842e7aa77SAlexander Simon are identical for the first 10 bytes */ 2679074d46d1SJohannes Berg memset(&ht_oper->basic_set, 0, 16); 2680074d46d1SJohannes Berg memcpy(&ht_oper->basic_set, &ht_cap->mcs, 10); 268142e7aa77SAlexander Simon 2682074d46d1SJohannes Berg return pos + sizeof(struct ieee80211_ht_operation); 268342e7aa77SAlexander Simon } 268442e7aa77SAlexander Simon 268575d627d5SSimon Wunderlich void ieee80211_ie_build_wide_bw_cs(u8 *pos, 268675d627d5SSimon Wunderlich const struct cfg80211_chan_def *chandef) 268775d627d5SSimon Wunderlich { 268875d627d5SSimon Wunderlich *pos++ = WLAN_EID_WIDE_BW_CHANNEL_SWITCH; /* EID */ 268975d627d5SSimon Wunderlich *pos++ = 3; /* IE length */ 269075d627d5SSimon Wunderlich /* New channel width */ 269175d627d5SSimon Wunderlich switch (chandef->width) { 269275d627d5SSimon Wunderlich case NL80211_CHAN_WIDTH_80: 269375d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_80MHZ; 269475d627d5SSimon Wunderlich break; 269575d627d5SSimon Wunderlich case NL80211_CHAN_WIDTH_160: 269675d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_160MHZ; 269775d627d5SSimon Wunderlich break; 269875d627d5SSimon Wunderlich case NL80211_CHAN_WIDTH_80P80: 269975d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_80P80MHZ; 270075d627d5SSimon Wunderlich break; 270175d627d5SSimon Wunderlich default: 270275d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_USE_HT; 270375d627d5SSimon Wunderlich } 270475d627d5SSimon Wunderlich 270575d627d5SSimon Wunderlich /* new center frequency segment 0 */ 270675d627d5SSimon Wunderlich *pos++ = ieee80211_frequency_to_channel(chandef->center_freq1); 270775d627d5SSimon Wunderlich /* new center frequency segment 1 */ 270875d627d5SSimon Wunderlich if (chandef->center_freq2) 270975d627d5SSimon Wunderlich *pos++ = ieee80211_frequency_to_channel(chandef->center_freq2); 271075d627d5SSimon Wunderlich else 271175d627d5SSimon Wunderlich *pos++ = 0; 271275d627d5SSimon Wunderlich } 271375d627d5SSimon Wunderlich 2714fb28ec0cSArik Nemtsov u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2715fb28ec0cSArik Nemtsov const struct cfg80211_chan_def *chandef) 2716fb28ec0cSArik Nemtsov { 2717fb28ec0cSArik Nemtsov struct ieee80211_vht_operation *vht_oper; 2718fb28ec0cSArik Nemtsov 2719fb28ec0cSArik Nemtsov *pos++ = WLAN_EID_VHT_OPERATION; 2720fb28ec0cSArik Nemtsov *pos++ = sizeof(struct ieee80211_vht_operation); 2721fb28ec0cSArik Nemtsov vht_oper = (struct ieee80211_vht_operation *)pos; 27222fb51c35SJohannes Berg vht_oper->center_freq_seg0_idx = ieee80211_frequency_to_channel( 2723fb28ec0cSArik Nemtsov chandef->center_freq1); 2724fb28ec0cSArik Nemtsov if (chandef->center_freq2) 27252fb51c35SJohannes Berg vht_oper->center_freq_seg1_idx = 2726fb28ec0cSArik Nemtsov ieee80211_frequency_to_channel(chandef->center_freq2); 2727f020ae40SChun-Yeow Yeoh else 27282fb51c35SJohannes Berg vht_oper->center_freq_seg1_idx = 0x00; 2729fb28ec0cSArik Nemtsov 2730fb28ec0cSArik Nemtsov switch (chandef->width) { 2731fb28ec0cSArik Nemtsov case NL80211_CHAN_WIDTH_160: 273223665aafSJouni Malinen /* 273323665aafSJouni Malinen * Convert 160 MHz channel width to new style as interop 273423665aafSJouni Malinen * workaround. 273523665aafSJouni Malinen */ 273623665aafSJouni Malinen vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; 27372fb51c35SJohannes Berg vht_oper->center_freq_seg1_idx = vht_oper->center_freq_seg0_idx; 273823665aafSJouni Malinen if (chandef->chan->center_freq < chandef->center_freq1) 27392fb51c35SJohannes Berg vht_oper->center_freq_seg0_idx -= 8; 274023665aafSJouni Malinen else 27412fb51c35SJohannes Berg vht_oper->center_freq_seg0_idx += 8; 2742fb28ec0cSArik Nemtsov break; 2743fb28ec0cSArik Nemtsov case NL80211_CHAN_WIDTH_80P80: 274423665aafSJouni Malinen /* 274523665aafSJouni Malinen * Convert 80+80 MHz channel width to new style as interop 274623665aafSJouni Malinen * workaround. 274723665aafSJouni Malinen */ 274823665aafSJouni Malinen vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; 2749fb28ec0cSArik Nemtsov break; 2750fb28ec0cSArik Nemtsov case NL80211_CHAN_WIDTH_80: 2751fb28ec0cSArik Nemtsov vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; 2752fb28ec0cSArik Nemtsov break; 2753fb28ec0cSArik Nemtsov default: 2754fb28ec0cSArik Nemtsov vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_USE_HT; 2755fb28ec0cSArik Nemtsov break; 2756fb28ec0cSArik Nemtsov } 2757fb28ec0cSArik Nemtsov 2758fb28ec0cSArik Nemtsov /* don't require special VHT peer rates */ 2759fb28ec0cSArik Nemtsov vht_oper->basic_mcs_set = cpu_to_le16(0xffff); 2760fb28ec0cSArik Nemtsov 2761fb28ec0cSArik Nemtsov return pos + sizeof(struct ieee80211_vht_operation); 2762fb28ec0cSArik Nemtsov } 2763fb28ec0cSArik Nemtsov 27648ac3c704SJohannes Berg bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, 27654bf88530SJohannes Berg struct cfg80211_chan_def *chandef) 276642e7aa77SAlexander Simon { 276742e7aa77SAlexander Simon enum nl80211_channel_type channel_type; 276842e7aa77SAlexander Simon 27698ac3c704SJohannes Berg if (!ht_oper) 27708ac3c704SJohannes Berg return false; 277142e7aa77SAlexander Simon 2772074d46d1SJohannes Berg switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { 277342e7aa77SAlexander Simon case IEEE80211_HT_PARAM_CHA_SEC_NONE: 277442e7aa77SAlexander Simon channel_type = NL80211_CHAN_HT20; 277542e7aa77SAlexander Simon break; 277642e7aa77SAlexander Simon case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: 277742e7aa77SAlexander Simon channel_type = NL80211_CHAN_HT40PLUS; 277842e7aa77SAlexander Simon break; 277942e7aa77SAlexander Simon case IEEE80211_HT_PARAM_CHA_SEC_BELOW: 278042e7aa77SAlexander Simon channel_type = NL80211_CHAN_HT40MINUS; 278142e7aa77SAlexander Simon break; 278242e7aa77SAlexander Simon default: 278342e7aa77SAlexander Simon channel_type = NL80211_CHAN_NO_HT; 27848ac3c704SJohannes Berg return false; 278542e7aa77SAlexander Simon } 278642e7aa77SAlexander Simon 27878ac3c704SJohannes Berg cfg80211_chandef_create(chandef, chandef->chan, channel_type); 27888ac3c704SJohannes Berg return true; 278942e7aa77SAlexander Simon } 279042e7aa77SAlexander Simon 27917eb26df2SJohannes Berg bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, 27927eb26df2SJohannes Berg const struct ieee80211_vht_operation *oper, 27937eb26df2SJohannes Berg const struct ieee80211_ht_operation *htop, 2794abcff6efSJanusz.Dziedzic@tieto.com struct cfg80211_chan_def *chandef) 2795abcff6efSJanusz.Dziedzic@tieto.com { 27968ac3c704SJohannes Berg struct cfg80211_chan_def new = *chandef; 27977eb26df2SJohannes Berg int cf0, cf1; 27987eb26df2SJohannes Berg int ccfs0, ccfs1, ccfs2; 27997eb26df2SJohannes Berg int ccf0, ccf1; 2800abcff6efSJanusz.Dziedzic@tieto.com 28017eb26df2SJohannes Berg if (!oper || !htop) 28028ac3c704SJohannes Berg return false; 28038ac3c704SJohannes Berg 28047eb26df2SJohannes Berg ccfs0 = oper->center_freq_seg0_idx; 28057eb26df2SJohannes Berg ccfs1 = oper->center_freq_seg1_idx; 28067eb26df2SJohannes Berg ccfs2 = (le16_to_cpu(htop->operation_mode) & 28077eb26df2SJohannes Berg IEEE80211_HT_OP_MODE_CCFS2_MASK) 28087eb26df2SJohannes Berg >> IEEE80211_HT_OP_MODE_CCFS2_SHIFT; 28097eb26df2SJohannes Berg 28107eb26df2SJohannes Berg /* when parsing (and we know how to) CCFS1 and CCFS2 are equivalent */ 28117eb26df2SJohannes Berg ccf0 = ccfs0; 28127eb26df2SJohannes Berg ccf1 = ccfs1; 28137eb26df2SJohannes Berg if (!ccfs1 && ieee80211_hw_check(hw, SUPPORTS_VHT_EXT_NSS_BW)) 28147eb26df2SJohannes Berg ccf1 = ccfs2; 28157eb26df2SJohannes Berg 28167eb26df2SJohannes Berg cf0 = ieee80211_channel_to_frequency(ccf0, chandef->chan->band); 28177eb26df2SJohannes Berg cf1 = ieee80211_channel_to_frequency(ccf1, chandef->chan->band); 2818abcff6efSJanusz.Dziedzic@tieto.com 2819abcff6efSJanusz.Dziedzic@tieto.com switch (oper->chan_width) { 2820abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_USE_HT: 28217eb26df2SJohannes Berg /* just use HT information directly */ 2822abcff6efSJanusz.Dziedzic@tieto.com break; 2823abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_80MHZ: 28248ac3c704SJohannes Berg new.width = NL80211_CHAN_WIDTH_80; 28257eb26df2SJohannes Berg new.center_freq1 = cf0; 282623665aafSJouni Malinen /* If needed, adjust based on the newer interop workaround. */ 28277eb26df2SJohannes Berg if (ccf1) { 282823665aafSJouni Malinen unsigned int diff; 282923665aafSJouni Malinen 28307eb26df2SJohannes Berg diff = abs(ccf1 - ccf0); 283123665aafSJouni Malinen if (diff == 8) { 283223665aafSJouni Malinen new.width = NL80211_CHAN_WIDTH_160; 28337eb26df2SJohannes Berg new.center_freq1 = cf1; 283423665aafSJouni Malinen } else if (diff > 8) { 283523665aafSJouni Malinen new.width = NL80211_CHAN_WIDTH_80P80; 28367eb26df2SJohannes Berg new.center_freq2 = cf1; 283723665aafSJouni Malinen } 283823665aafSJouni Malinen } 2839abcff6efSJanusz.Dziedzic@tieto.com break; 2840abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_160MHZ: 28417eb26df2SJohannes Berg /* deprecated encoding */ 28428ac3c704SJohannes Berg new.width = NL80211_CHAN_WIDTH_160; 28437eb26df2SJohannes Berg new.center_freq1 = cf0; 2844abcff6efSJanusz.Dziedzic@tieto.com break; 2845abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_80P80MHZ: 28467eb26df2SJohannes Berg /* deprecated encoding */ 28478ac3c704SJohannes Berg new.width = NL80211_CHAN_WIDTH_80P80; 28487eb26df2SJohannes Berg new.center_freq1 = cf0; 28497eb26df2SJohannes Berg new.center_freq2 = cf1; 2850abcff6efSJanusz.Dziedzic@tieto.com break; 2851abcff6efSJanusz.Dziedzic@tieto.com default: 28528ac3c704SJohannes Berg return false; 2853abcff6efSJanusz.Dziedzic@tieto.com } 2854abcff6efSJanusz.Dziedzic@tieto.com 28558ac3c704SJohannes Berg if (!cfg80211_chandef_valid(&new)) 28568ac3c704SJohannes Berg return false; 28578ac3c704SJohannes Berg 28588ac3c704SJohannes Berg *chandef = new; 28598ac3c704SJohannes Berg return true; 2860abcff6efSJanusz.Dziedzic@tieto.com } 2861abcff6efSJanusz.Dziedzic@tieto.com 28622103dec1SSimon Wunderlich int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef, 28632103dec1SSimon Wunderlich const struct ieee80211_supported_band *sband, 28642103dec1SSimon Wunderlich const u8 *srates, int srates_len, u32 *rates) 28652103dec1SSimon Wunderlich { 28662103dec1SSimon Wunderlich u32 rate_flags = ieee80211_chandef_rate_flags(chandef); 28672103dec1SSimon Wunderlich int shift = ieee80211_chandef_get_shift(chandef); 28682103dec1SSimon Wunderlich struct ieee80211_rate *br; 28692103dec1SSimon Wunderlich int brate, rate, i, j, count = 0; 28702103dec1SSimon Wunderlich 28712103dec1SSimon Wunderlich *rates = 0; 28722103dec1SSimon Wunderlich 28732103dec1SSimon Wunderlich for (i = 0; i < srates_len; i++) { 28742103dec1SSimon Wunderlich rate = srates[i] & 0x7f; 28752103dec1SSimon Wunderlich 28762103dec1SSimon Wunderlich for (j = 0; j < sband->n_bitrates; j++) { 28772103dec1SSimon Wunderlich br = &sband->bitrates[j]; 28782103dec1SSimon Wunderlich if ((rate_flags & br->flags) != rate_flags) 28792103dec1SSimon Wunderlich continue; 28802103dec1SSimon Wunderlich 28812103dec1SSimon Wunderlich brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5); 28822103dec1SSimon Wunderlich if (brate == rate) { 28832103dec1SSimon Wunderlich *rates |= BIT(j); 28842103dec1SSimon Wunderlich count++; 28852103dec1SSimon Wunderlich break; 28862103dec1SSimon Wunderlich } 28872103dec1SSimon Wunderlich } 28882103dec1SSimon Wunderlich } 28892103dec1SSimon Wunderlich return count; 28902103dec1SSimon Wunderlich } 28912103dec1SSimon Wunderlich 2892fc8a7321SJohannes Berg int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, 28936b77863bSJohannes Berg struct sk_buff *skb, bool need_basic, 289457fbcce3SJohannes Berg enum nl80211_band band) 2895768db343SArik Nemtsov { 2896768db343SArik Nemtsov struct ieee80211_local *local = sdata->local; 2897768db343SArik Nemtsov struct ieee80211_supported_band *sband; 28982103dec1SSimon Wunderlich int rate, shift; 2899768db343SArik Nemtsov u8 i, rates, *pos; 2900fc8a7321SJohannes Berg u32 basic_rates = sdata->vif.bss_conf.basic_rates; 29012103dec1SSimon Wunderlich u32 rate_flags; 2902768db343SArik Nemtsov 29032103dec1SSimon Wunderlich shift = ieee80211_vif_get_shift(&sdata->vif); 29042103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); 29056b77863bSJohannes Berg sband = local->hw.wiphy->bands[band]; 29062103dec1SSimon Wunderlich rates = 0; 29072103dec1SSimon Wunderlich for (i = 0; i < sband->n_bitrates; i++) { 29082103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 29092103dec1SSimon Wunderlich continue; 29102103dec1SSimon Wunderlich rates++; 29112103dec1SSimon Wunderlich } 2912768db343SArik Nemtsov if (rates > 8) 2913768db343SArik Nemtsov rates = 8; 2914768db343SArik Nemtsov 2915768db343SArik Nemtsov if (skb_tailroom(skb) < rates + 2) 2916768db343SArik Nemtsov return -ENOMEM; 2917768db343SArik Nemtsov 2918768db343SArik Nemtsov pos = skb_put(skb, rates + 2); 2919768db343SArik Nemtsov *pos++ = WLAN_EID_SUPP_RATES; 2920768db343SArik Nemtsov *pos++ = rates; 2921768db343SArik Nemtsov for (i = 0; i < rates; i++) { 2922657c3e0cSAshok Nagarajan u8 basic = 0; 29232103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 29242103dec1SSimon Wunderlich continue; 29252103dec1SSimon Wunderlich 2926657c3e0cSAshok Nagarajan if (need_basic && basic_rates & BIT(i)) 2927657c3e0cSAshok Nagarajan basic = 0x80; 29282103dec1SSimon Wunderlich rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, 29292103dec1SSimon Wunderlich 5 * (1 << shift)); 29302103dec1SSimon Wunderlich *pos++ = basic | (u8) rate; 2931768db343SArik Nemtsov } 2932768db343SArik Nemtsov 2933768db343SArik Nemtsov return 0; 2934768db343SArik Nemtsov } 2935768db343SArik Nemtsov 2936fc8a7321SJohannes Berg int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, 29376b77863bSJohannes Berg struct sk_buff *skb, bool need_basic, 293857fbcce3SJohannes Berg enum nl80211_band band) 2939768db343SArik Nemtsov { 2940768db343SArik Nemtsov struct ieee80211_local *local = sdata->local; 2941768db343SArik Nemtsov struct ieee80211_supported_band *sband; 2942cc63ec76SChun-Yeow Yeoh int rate, shift; 2943768db343SArik Nemtsov u8 i, exrates, *pos; 2944fc8a7321SJohannes Berg u32 basic_rates = sdata->vif.bss_conf.basic_rates; 29452103dec1SSimon Wunderlich u32 rate_flags; 29462103dec1SSimon Wunderlich 29472103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); 29482103dec1SSimon Wunderlich shift = ieee80211_vif_get_shift(&sdata->vif); 2949768db343SArik Nemtsov 29506b77863bSJohannes Berg sband = local->hw.wiphy->bands[band]; 29512103dec1SSimon Wunderlich exrates = 0; 29522103dec1SSimon Wunderlich for (i = 0; i < sband->n_bitrates; i++) { 29532103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 29542103dec1SSimon Wunderlich continue; 29552103dec1SSimon Wunderlich exrates++; 29562103dec1SSimon Wunderlich } 29572103dec1SSimon Wunderlich 2958768db343SArik Nemtsov if (exrates > 8) 2959768db343SArik Nemtsov exrates -= 8; 2960768db343SArik Nemtsov else 2961768db343SArik Nemtsov exrates = 0; 2962768db343SArik Nemtsov 2963768db343SArik Nemtsov if (skb_tailroom(skb) < exrates + 2) 2964768db343SArik Nemtsov return -ENOMEM; 2965768db343SArik Nemtsov 2966768db343SArik Nemtsov if (exrates) { 2967768db343SArik Nemtsov pos = skb_put(skb, exrates + 2); 2968768db343SArik Nemtsov *pos++ = WLAN_EID_EXT_SUPP_RATES; 2969768db343SArik Nemtsov *pos++ = exrates; 2970768db343SArik Nemtsov for (i = 8; i < sband->n_bitrates; i++) { 2971657c3e0cSAshok Nagarajan u8 basic = 0; 29722103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) 29732103dec1SSimon Wunderlich != rate_flags) 29742103dec1SSimon Wunderlich continue; 2975657c3e0cSAshok Nagarajan if (need_basic && basic_rates & BIT(i)) 2976657c3e0cSAshok Nagarajan basic = 0x80; 29772103dec1SSimon Wunderlich rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, 29782103dec1SSimon Wunderlich 5 * (1 << shift)); 29792103dec1SSimon Wunderlich *pos++ = basic | (u8) rate; 2980768db343SArik Nemtsov } 2981768db343SArik Nemtsov } 2982768db343SArik Nemtsov return 0; 2983768db343SArik Nemtsov } 29841dae27f8SWey-Yi Guy 29851dae27f8SWey-Yi Guy int ieee80211_ave_rssi(struct ieee80211_vif *vif) 29861dae27f8SWey-Yi Guy { 29871dae27f8SWey-Yi Guy struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 29881dae27f8SWey-Yi Guy struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 29891dae27f8SWey-Yi Guy 2990be6bcabcSWey-Yi Guy if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) { 2991be6bcabcSWey-Yi Guy /* non-managed type inferfaces */ 2992be6bcabcSWey-Yi Guy return 0; 2993be6bcabcSWey-Yi Guy } 2994338c17aeSJohannes Berg return -ewma_beacon_signal_read(&ifmgd->ave_beacon_signal); 29951dae27f8SWey-Yi Guy } 29960d8a0a17SWey-Yi Guy EXPORT_SYMBOL_GPL(ieee80211_ave_rssi); 299704ecd257SJohannes Berg 299804ecd257SJohannes Berg u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs) 299904ecd257SJohannes Berg { 300004ecd257SJohannes Berg if (!mcs) 300104ecd257SJohannes Berg return 1; 300204ecd257SJohannes Berg 300304ecd257SJohannes Berg /* TODO: consider rx_highest */ 300404ecd257SJohannes Berg 300504ecd257SJohannes Berg if (mcs->rx_mask[3]) 300604ecd257SJohannes Berg return 4; 300704ecd257SJohannes Berg if (mcs->rx_mask[2]) 300804ecd257SJohannes Berg return 3; 300904ecd257SJohannes Berg if (mcs->rx_mask[1]) 301004ecd257SJohannes Berg return 2; 301104ecd257SJohannes Berg return 1; 301204ecd257SJohannes Berg } 3013f4bda337SThomas Pedersen 3014f4bda337SThomas Pedersen /** 3015f4bda337SThomas Pedersen * ieee80211_calculate_rx_timestamp - calculate timestamp in frame 3016f4bda337SThomas Pedersen * @local: mac80211 hw info struct 3017f4bda337SThomas Pedersen * @status: RX status 3018f4bda337SThomas Pedersen * @mpdu_len: total MPDU length (including FCS) 3019f4bda337SThomas Pedersen * @mpdu_offset: offset into MPDU to calculate timestamp at 3020f4bda337SThomas Pedersen * 3021f4bda337SThomas Pedersen * This function calculates the RX timestamp at the given MPDU offset, taking 3022f4bda337SThomas Pedersen * into account what the RX timestamp was. An offset of 0 will just normalize 3023f4bda337SThomas Pedersen * the timestamp to TSF at beginning of MPDU reception. 3024f4bda337SThomas Pedersen */ 3025f4bda337SThomas Pedersen u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, 3026f4bda337SThomas Pedersen struct ieee80211_rx_status *status, 3027f4bda337SThomas Pedersen unsigned int mpdu_len, 3028f4bda337SThomas Pedersen unsigned int mpdu_offset) 3029f4bda337SThomas Pedersen { 3030f4bda337SThomas Pedersen u64 ts = status->mactime; 3031f4bda337SThomas Pedersen struct rate_info ri; 3032f4bda337SThomas Pedersen u16 rate; 3033f4bda337SThomas Pedersen 3034f4bda337SThomas Pedersen if (WARN_ON(!ieee80211_have_rx_timestamp(status))) 3035f4bda337SThomas Pedersen return 0; 3036f4bda337SThomas Pedersen 3037f4bda337SThomas Pedersen memset(&ri, 0, sizeof(ri)); 3038f4bda337SThomas Pedersen 303935f4962cSJohannes Berg ri.bw = status->bw; 304035f4962cSJohannes Berg 3041f4bda337SThomas Pedersen /* Fill cfg80211 rate info */ 3042da6a4352SJohannes Berg switch (status->encoding) { 3043da6a4352SJohannes Berg case RX_ENC_HT: 3044f4bda337SThomas Pedersen ri.mcs = status->rate_idx; 3045f4bda337SThomas Pedersen ri.flags |= RATE_INFO_FLAGS_MCS; 30467fdd69c5SJohannes Berg if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) 3047f4bda337SThomas Pedersen ri.flags |= RATE_INFO_FLAGS_SHORT_GI; 3048da6a4352SJohannes Berg break; 3049da6a4352SJohannes Berg case RX_ENC_VHT: 30505614618eSJohannes Berg ri.flags |= RATE_INFO_FLAGS_VHT_MCS; 30515614618eSJohannes Berg ri.mcs = status->rate_idx; 30528613c948SJohannes Berg ri.nss = status->nss; 30537fdd69c5SJohannes Berg if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) 30545614618eSJohannes Berg ri.flags |= RATE_INFO_FLAGS_SHORT_GI; 3055da6a4352SJohannes Berg break; 3056da6a4352SJohannes Berg default: 3057da6a4352SJohannes Berg WARN_ON(1); 3058da6a4352SJohannes Berg /* fall through */ 3059da6a4352SJohannes Berg case RX_ENC_LEGACY: { 3060f4bda337SThomas Pedersen struct ieee80211_supported_band *sband; 30612103dec1SSimon Wunderlich int shift = 0; 30622103dec1SSimon Wunderlich int bitrate; 30632103dec1SSimon Wunderlich 3064da6a4352SJohannes Berg switch (status->bw) { 3065da6a4352SJohannes Berg case RATE_INFO_BW_10: 30662103dec1SSimon Wunderlich shift = 1; 3067da6a4352SJohannes Berg break; 3068da6a4352SJohannes Berg case RATE_INFO_BW_5: 30692103dec1SSimon Wunderlich shift = 2; 3070da6a4352SJohannes Berg break; 3071b51f3beeSJohannes Berg } 3072f4bda337SThomas Pedersen 3073f4bda337SThomas Pedersen sband = local->hw.wiphy->bands[status->band]; 30742103dec1SSimon Wunderlich bitrate = sband->bitrates[status->rate_idx].bitrate; 30752103dec1SSimon Wunderlich ri.legacy = DIV_ROUND_UP(bitrate, (1 << shift)); 3076f4a0f0c5SJohannes Berg 3077f4a0f0c5SJohannes Berg if (status->flag & RX_FLAG_MACTIME_PLCP_START) { 3078f4a0f0c5SJohannes Berg /* TODO: handle HT/VHT preambles */ 307957fbcce3SJohannes Berg if (status->band == NL80211_BAND_5GHZ) { 3080f4a0f0c5SJohannes Berg ts += 20 << shift; 3081f4a0f0c5SJohannes Berg mpdu_offset += 2; 30827fdd69c5SJohannes Berg } else if (status->enc_flags & RX_ENC_FLAG_SHORTPRE) { 3083f4a0f0c5SJohannes Berg ts += 96; 3084f4a0f0c5SJohannes Berg } else { 3085f4a0f0c5SJohannes Berg ts += 192; 3086f4a0f0c5SJohannes Berg } 3087f4a0f0c5SJohannes Berg } 3088da6a4352SJohannes Berg break; 3089da6a4352SJohannes Berg } 3090f4bda337SThomas Pedersen } 3091f4bda337SThomas Pedersen 3092f4bda337SThomas Pedersen rate = cfg80211_calculate_bitrate(&ri); 3093d86aa4f8SJohannes Berg if (WARN_ONCE(!rate, 3094f980ebc0SSara Sharon "Invalid bitrate: flags=0x%llx, idx=%d, vht_nss=%d\n", 3095f980ebc0SSara Sharon (unsigned long long)status->flag, status->rate_idx, 30968613c948SJohannes Berg status->nss)) 3097d86aa4f8SJohannes Berg return 0; 3098f4bda337SThomas Pedersen 3099f4bda337SThomas Pedersen /* rewind from end of MPDU */ 3100f4bda337SThomas Pedersen if (status->flag & RX_FLAG_MACTIME_END) 3101f4bda337SThomas Pedersen ts -= mpdu_len * 8 * 10 / rate; 3102f4bda337SThomas Pedersen 3103f4bda337SThomas Pedersen ts += mpdu_offset * 8 * 10 / rate; 3104f4bda337SThomas Pedersen 3105f4bda337SThomas Pedersen return ts; 3106f4bda337SThomas Pedersen } 3107164eb02dSSimon Wunderlich 3108164eb02dSSimon Wunderlich void ieee80211_dfs_cac_cancel(struct ieee80211_local *local) 3109164eb02dSSimon Wunderlich { 3110164eb02dSSimon Wunderlich struct ieee80211_sub_if_data *sdata; 3111d2859df5SJanusz Dziedzic struct cfg80211_chan_def chandef; 3112164eb02dSSimon Wunderlich 31134a199068SJohannes Berg /* for interface list, to avoid linking iflist_mtx and chanctx_mtx */ 31144a199068SJohannes Berg ASSERT_RTNL(); 31154a199068SJohannes Berg 311634a3740dSJohannes Berg mutex_lock(&local->mtx); 3117164eb02dSSimon Wunderlich list_for_each_entry(sdata, &local->interfaces, list) { 311834a3740dSJohannes Berg /* it might be waiting for the local->mtx, but then 311934a3740dSJohannes Berg * by the time it gets it, sdata->wdev.cac_started 312034a3740dSJohannes Berg * will no longer be true 312134a3740dSJohannes Berg */ 312234a3740dSJohannes Berg cancel_delayed_work(&sdata->dfs_cac_timer_work); 3123164eb02dSSimon Wunderlich 3124164eb02dSSimon Wunderlich if (sdata->wdev.cac_started) { 3125d2859df5SJanusz Dziedzic chandef = sdata->vif.bss_conf.chandef; 3126164eb02dSSimon Wunderlich ieee80211_vif_release_channel(sdata); 3127164eb02dSSimon Wunderlich cfg80211_cac_event(sdata->dev, 3128d2859df5SJanusz Dziedzic &chandef, 3129164eb02dSSimon Wunderlich NL80211_RADAR_CAC_ABORTED, 3130164eb02dSSimon Wunderlich GFP_KERNEL); 3131164eb02dSSimon Wunderlich } 3132164eb02dSSimon Wunderlich } 313334a3740dSJohannes Berg mutex_unlock(&local->mtx); 3134164eb02dSSimon Wunderlich } 3135164eb02dSSimon Wunderlich 3136164eb02dSSimon Wunderlich void ieee80211_dfs_radar_detected_work(struct work_struct *work) 3137164eb02dSSimon Wunderlich { 3138164eb02dSSimon Wunderlich struct ieee80211_local *local = 3139164eb02dSSimon Wunderlich container_of(work, struct ieee80211_local, radar_detected_work); 314084a3d1c9SJanusz Dziedzic struct cfg80211_chan_def chandef = local->hw.conf.chandef; 3141486cf4c0SMichal Kazior struct ieee80211_chanctx *ctx; 3142486cf4c0SMichal Kazior int num_chanctx = 0; 3143486cf4c0SMichal Kazior 3144486cf4c0SMichal Kazior mutex_lock(&local->chanctx_mtx); 3145486cf4c0SMichal Kazior list_for_each_entry(ctx, &local->chanctx_list, list) { 3146486cf4c0SMichal Kazior if (ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER) 3147486cf4c0SMichal Kazior continue; 3148486cf4c0SMichal Kazior 3149486cf4c0SMichal Kazior num_chanctx++; 3150486cf4c0SMichal Kazior chandef = ctx->conf.def; 3151486cf4c0SMichal Kazior } 3152486cf4c0SMichal Kazior mutex_unlock(&local->chanctx_mtx); 3153164eb02dSSimon Wunderlich 31544a199068SJohannes Berg rtnl_lock(); 3155164eb02dSSimon Wunderlich ieee80211_dfs_cac_cancel(local); 31564a199068SJohannes Berg rtnl_unlock(); 3157164eb02dSSimon Wunderlich 3158486cf4c0SMichal Kazior if (num_chanctx > 1) 3159486cf4c0SMichal Kazior /* XXX: multi-channel is not supported yet */ 3160164eb02dSSimon Wunderlich WARN_ON(1); 316184a3d1c9SJanusz Dziedzic else 3162164eb02dSSimon Wunderlich cfg80211_radar_event(local->hw.wiphy, &chandef, GFP_KERNEL); 3163164eb02dSSimon Wunderlich } 3164164eb02dSSimon Wunderlich 3165164eb02dSSimon Wunderlich void ieee80211_radar_detected(struct ieee80211_hw *hw) 3166164eb02dSSimon Wunderlich { 3167164eb02dSSimon Wunderlich struct ieee80211_local *local = hw_to_local(hw); 3168164eb02dSSimon Wunderlich 3169164eb02dSSimon Wunderlich trace_api_radar_detected(local); 3170164eb02dSSimon Wunderlich 31714a199068SJohannes Berg schedule_work(&local->radar_detected_work); 3172164eb02dSSimon Wunderlich } 3173164eb02dSSimon Wunderlich EXPORT_SYMBOL(ieee80211_radar_detected); 3174e6b7cde4SSimon Wunderlich 3175e6b7cde4SSimon Wunderlich u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c) 3176e6b7cde4SSimon Wunderlich { 3177e6b7cde4SSimon Wunderlich u32 ret; 3178e6b7cde4SSimon Wunderlich int tmp; 3179e6b7cde4SSimon Wunderlich 3180e6b7cde4SSimon Wunderlich switch (c->width) { 3181e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_20: 3182e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_20_NOHT; 3183e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; 3184e6b7cde4SSimon Wunderlich break; 3185e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_40: 3186e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_20; 3187e6b7cde4SSimon Wunderlich c->center_freq1 = c->chan->center_freq; 3188e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_40MHZ | 3189e6b7cde4SSimon Wunderlich IEEE80211_STA_DISABLE_VHT; 3190e6b7cde4SSimon Wunderlich break; 3191e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_80: 3192e6b7cde4SSimon Wunderlich tmp = (30 + c->chan->center_freq - c->center_freq1)/20; 3193e6b7cde4SSimon Wunderlich /* n_P40 */ 3194e6b7cde4SSimon Wunderlich tmp /= 2; 3195e6b7cde4SSimon Wunderlich /* freq_P40 */ 3196e6b7cde4SSimon Wunderlich c->center_freq1 = c->center_freq1 - 20 + 40 * tmp; 3197e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_40; 3198e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_VHT; 3199e6b7cde4SSimon Wunderlich break; 3200e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_80P80: 3201e6b7cde4SSimon Wunderlich c->center_freq2 = 0; 3202e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_80; 3203e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_80P80MHZ | 3204e6b7cde4SSimon Wunderlich IEEE80211_STA_DISABLE_160MHZ; 3205e6b7cde4SSimon Wunderlich break; 3206e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_160: 3207e6b7cde4SSimon Wunderlich /* n_P20 */ 3208e6b7cde4SSimon Wunderlich tmp = (70 + c->chan->center_freq - c->center_freq1)/20; 3209e6b7cde4SSimon Wunderlich /* n_P80 */ 3210e6b7cde4SSimon Wunderlich tmp /= 4; 3211e6b7cde4SSimon Wunderlich c->center_freq1 = c->center_freq1 - 40 + 80 * tmp; 3212e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_80; 3213e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_80P80MHZ | 3214e6b7cde4SSimon Wunderlich IEEE80211_STA_DISABLE_160MHZ; 3215e6b7cde4SSimon Wunderlich break; 3216e6b7cde4SSimon Wunderlich default: 3217e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_20_NOHT: 3218e6b7cde4SSimon Wunderlich WARN_ON_ONCE(1); 3219e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_20_NOHT; 3220e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; 3221e6b7cde4SSimon Wunderlich break; 3222e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_5: 3223e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_10: 3224e6b7cde4SSimon Wunderlich WARN_ON_ONCE(1); 3225e6b7cde4SSimon Wunderlich /* keep c->width */ 3226e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; 3227e6b7cde4SSimon Wunderlich break; 3228e6b7cde4SSimon Wunderlich } 3229e6b7cde4SSimon Wunderlich 3230e6b7cde4SSimon Wunderlich WARN_ON_ONCE(!cfg80211_chandef_valid(c)); 3231e6b7cde4SSimon Wunderlich 3232e6b7cde4SSimon Wunderlich return ret; 3233e6b7cde4SSimon Wunderlich } 3234687da132SEmmanuel Grumbach 3235687da132SEmmanuel Grumbach /* 3236687da132SEmmanuel Grumbach * Returns true if smps_mode_new is strictly more restrictive than 3237687da132SEmmanuel Grumbach * smps_mode_old. 3238687da132SEmmanuel Grumbach */ 3239687da132SEmmanuel Grumbach bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old, 3240687da132SEmmanuel Grumbach enum ieee80211_smps_mode smps_mode_new) 3241687da132SEmmanuel Grumbach { 3242687da132SEmmanuel Grumbach if (WARN_ON_ONCE(smps_mode_old == IEEE80211_SMPS_AUTOMATIC || 3243687da132SEmmanuel Grumbach smps_mode_new == IEEE80211_SMPS_AUTOMATIC)) 3244687da132SEmmanuel Grumbach return false; 3245687da132SEmmanuel Grumbach 3246687da132SEmmanuel Grumbach switch (smps_mode_old) { 3247687da132SEmmanuel Grumbach case IEEE80211_SMPS_STATIC: 3248687da132SEmmanuel Grumbach return false; 3249687da132SEmmanuel Grumbach case IEEE80211_SMPS_DYNAMIC: 3250687da132SEmmanuel Grumbach return smps_mode_new == IEEE80211_SMPS_STATIC; 3251687da132SEmmanuel Grumbach case IEEE80211_SMPS_OFF: 3252687da132SEmmanuel Grumbach return smps_mode_new != IEEE80211_SMPS_OFF; 3253687da132SEmmanuel Grumbach default: 3254687da132SEmmanuel Grumbach WARN_ON(1); 3255687da132SEmmanuel Grumbach } 3256687da132SEmmanuel Grumbach 3257687da132SEmmanuel Grumbach return false; 3258687da132SEmmanuel Grumbach } 3259c6da674aSChun-Yeow Yeoh 3260c6da674aSChun-Yeow Yeoh int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, 3261c6da674aSChun-Yeow Yeoh struct cfg80211_csa_settings *csa_settings) 3262c6da674aSChun-Yeow Yeoh { 3263c6da674aSChun-Yeow Yeoh struct sk_buff *skb; 3264c6da674aSChun-Yeow Yeoh struct ieee80211_mgmt *mgmt; 3265c6da674aSChun-Yeow Yeoh struct ieee80211_local *local = sdata->local; 3266c6da674aSChun-Yeow Yeoh int freq; 32674c121fd6SJohannes Berg int hdr_len = offsetofend(struct ieee80211_mgmt, 32684c121fd6SJohannes Berg u.action.u.chan_switch); 3269c6da674aSChun-Yeow Yeoh u8 *pos; 3270c6da674aSChun-Yeow Yeoh 3271c6da674aSChun-Yeow Yeoh if (sdata->vif.type != NL80211_IFTYPE_ADHOC && 3272c6da674aSChun-Yeow Yeoh sdata->vif.type != NL80211_IFTYPE_MESH_POINT) 3273c6da674aSChun-Yeow Yeoh return -EOPNOTSUPP; 3274c6da674aSChun-Yeow Yeoh 3275c6da674aSChun-Yeow Yeoh skb = dev_alloc_skb(local->tx_headroom + hdr_len + 3276c6da674aSChun-Yeow Yeoh 5 + /* channel switch announcement element */ 3277c6da674aSChun-Yeow Yeoh 3 + /* secondary channel offset element */ 327875d627d5SSimon Wunderlich 5 + /* wide bandwidth channel switch announcement */ 3279c6da674aSChun-Yeow Yeoh 8); /* mesh channel switch parameters element */ 3280c6da674aSChun-Yeow Yeoh if (!skb) 3281c6da674aSChun-Yeow Yeoh return -ENOMEM; 3282c6da674aSChun-Yeow Yeoh 3283c6da674aSChun-Yeow Yeoh skb_reserve(skb, local->tx_headroom); 3284b080db58SJohannes Berg mgmt = skb_put_zero(skb, hdr_len); 3285c6da674aSChun-Yeow Yeoh mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 3286c6da674aSChun-Yeow Yeoh IEEE80211_STYPE_ACTION); 3287c6da674aSChun-Yeow Yeoh 3288c6da674aSChun-Yeow Yeoh eth_broadcast_addr(mgmt->da); 3289c6da674aSChun-Yeow Yeoh memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 3290c6da674aSChun-Yeow Yeoh if (ieee80211_vif_is_mesh(&sdata->vif)) { 3291c6da674aSChun-Yeow Yeoh memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN); 3292c6da674aSChun-Yeow Yeoh } else { 3293c6da674aSChun-Yeow Yeoh struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; 3294c6da674aSChun-Yeow Yeoh memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN); 3295c6da674aSChun-Yeow Yeoh } 3296c6da674aSChun-Yeow Yeoh mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT; 3297c6da674aSChun-Yeow Yeoh mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH; 3298c6da674aSChun-Yeow Yeoh pos = skb_put(skb, 5); 3299c6da674aSChun-Yeow Yeoh *pos++ = WLAN_EID_CHANNEL_SWITCH; /* EID */ 3300c6da674aSChun-Yeow Yeoh *pos++ = 3; /* IE length */ 3301c6da674aSChun-Yeow Yeoh *pos++ = csa_settings->block_tx ? 1 : 0; /* CSA mode */ 3302c6da674aSChun-Yeow Yeoh freq = csa_settings->chandef.chan->center_freq; 3303c6da674aSChun-Yeow Yeoh *pos++ = ieee80211_frequency_to_channel(freq); /* channel */ 3304c6da674aSChun-Yeow Yeoh *pos++ = csa_settings->count; /* count */ 3305c6da674aSChun-Yeow Yeoh 3306c6da674aSChun-Yeow Yeoh if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) { 3307c6da674aSChun-Yeow Yeoh enum nl80211_channel_type ch_type; 3308c6da674aSChun-Yeow Yeoh 3309c6da674aSChun-Yeow Yeoh skb_put(skb, 3); 3310c6da674aSChun-Yeow Yeoh *pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET; /* EID */ 3311c6da674aSChun-Yeow Yeoh *pos++ = 1; /* IE length */ 3312c6da674aSChun-Yeow Yeoh ch_type = cfg80211_get_chandef_type(&csa_settings->chandef); 3313c6da674aSChun-Yeow Yeoh if (ch_type == NL80211_CHAN_HT40PLUS) 3314c6da674aSChun-Yeow Yeoh *pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; 3315c6da674aSChun-Yeow Yeoh else 3316c6da674aSChun-Yeow Yeoh *pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW; 3317c6da674aSChun-Yeow Yeoh } 3318c6da674aSChun-Yeow Yeoh 3319c6da674aSChun-Yeow Yeoh if (ieee80211_vif_is_mesh(&sdata->vif)) { 3320c6da674aSChun-Yeow Yeoh struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3321c6da674aSChun-Yeow Yeoh 3322c6da674aSChun-Yeow Yeoh skb_put(skb, 8); 3323c6da674aSChun-Yeow Yeoh *pos++ = WLAN_EID_CHAN_SWITCH_PARAM; /* EID */ 3324c6da674aSChun-Yeow Yeoh *pos++ = 6; /* IE length */ 3325c6da674aSChun-Yeow Yeoh *pos++ = sdata->u.mesh.mshcfg.dot11MeshTTL; /* Mesh TTL */ 3326c6da674aSChun-Yeow Yeoh *pos = 0x00; /* Mesh Flag: Tx Restrict, Initiator, Reason */ 3327c6da674aSChun-Yeow Yeoh *pos |= WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR; 3328c6da674aSChun-Yeow Yeoh *pos++ |= csa_settings->block_tx ? 3329c6da674aSChun-Yeow Yeoh WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT : 0x00; 3330c6da674aSChun-Yeow Yeoh put_unaligned_le16(WLAN_REASON_MESH_CHAN, pos); /* Reason Cd */ 3331c6da674aSChun-Yeow Yeoh pos += 2; 3332ca91dc97SChun-Yeow Yeoh put_unaligned_le16(ifmsh->pre_value, pos);/* Precedence Value */ 3333c6da674aSChun-Yeow Yeoh pos += 2; 3334c6da674aSChun-Yeow Yeoh } 3335c6da674aSChun-Yeow Yeoh 333675d627d5SSimon Wunderlich if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_80 || 333775d627d5SSimon Wunderlich csa_settings->chandef.width == NL80211_CHAN_WIDTH_80P80 || 333875d627d5SSimon Wunderlich csa_settings->chandef.width == NL80211_CHAN_WIDTH_160) { 333975d627d5SSimon Wunderlich skb_put(skb, 5); 334075d627d5SSimon Wunderlich ieee80211_ie_build_wide_bw_cs(pos, &csa_settings->chandef); 334175d627d5SSimon Wunderlich } 334275d627d5SSimon Wunderlich 3343c6da674aSChun-Yeow Yeoh ieee80211_tx_skb(sdata, skb); 3344c6da674aSChun-Yeow Yeoh return 0; 3345c6da674aSChun-Yeow Yeoh } 33462475b1ccSMax Stepanov 33472475b1ccSMax Stepanov bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs) 33482475b1ccSMax Stepanov { 33492475b1ccSMax Stepanov return !(cs == NULL || cs->cipher == 0 || 33502475b1ccSMax Stepanov cs->hdr_len < cs->pn_len + cs->pn_off || 33512475b1ccSMax Stepanov cs->hdr_len <= cs->key_idx_off || 33522475b1ccSMax Stepanov cs->key_idx_shift > 7 || 33532475b1ccSMax Stepanov cs->key_idx_mask == 0); 33542475b1ccSMax Stepanov } 33552475b1ccSMax Stepanov 33562475b1ccSMax Stepanov bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n) 33572475b1ccSMax Stepanov { 33582475b1ccSMax Stepanov int i; 33592475b1ccSMax Stepanov 33602475b1ccSMax Stepanov /* Ensure we have enough iftype bitmap space for all iftype values */ 33612475b1ccSMax Stepanov WARN_ON((NUM_NL80211_IFTYPES / 8 + 1) > sizeof(cs[0].iftype)); 33622475b1ccSMax Stepanov 33632475b1ccSMax Stepanov for (i = 0; i < n; i++) 33642475b1ccSMax Stepanov if (!ieee80211_cs_valid(&cs[i])) 33652475b1ccSMax Stepanov return false; 33662475b1ccSMax Stepanov 33672475b1ccSMax Stepanov return true; 33682475b1ccSMax Stepanov } 33692475b1ccSMax Stepanov 33702475b1ccSMax Stepanov const struct ieee80211_cipher_scheme * 33712475b1ccSMax Stepanov ieee80211_cs_get(struct ieee80211_local *local, u32 cipher, 33722475b1ccSMax Stepanov enum nl80211_iftype iftype) 33732475b1ccSMax Stepanov { 33742475b1ccSMax Stepanov const struct ieee80211_cipher_scheme *l = local->hw.cipher_schemes; 33752475b1ccSMax Stepanov int n = local->hw.n_cipher_schemes; 33762475b1ccSMax Stepanov int i; 33772475b1ccSMax Stepanov const struct ieee80211_cipher_scheme *cs = NULL; 33782475b1ccSMax Stepanov 33792475b1ccSMax Stepanov for (i = 0; i < n; i++) { 33802475b1ccSMax Stepanov if (l[i].cipher == cipher) { 33812475b1ccSMax Stepanov cs = &l[i]; 33822475b1ccSMax Stepanov break; 33832475b1ccSMax Stepanov } 33842475b1ccSMax Stepanov } 33852475b1ccSMax Stepanov 33862475b1ccSMax Stepanov if (!cs || !(cs->iftype & BIT(iftype))) 33872475b1ccSMax Stepanov return NULL; 33882475b1ccSMax Stepanov 33892475b1ccSMax Stepanov return cs; 33902475b1ccSMax Stepanov } 33912475b1ccSMax Stepanov 33922475b1ccSMax Stepanov int ieee80211_cs_headroom(struct ieee80211_local *local, 33932475b1ccSMax Stepanov struct cfg80211_crypto_settings *crypto, 33942475b1ccSMax Stepanov enum nl80211_iftype iftype) 33952475b1ccSMax Stepanov { 33962475b1ccSMax Stepanov const struct ieee80211_cipher_scheme *cs; 33972475b1ccSMax Stepanov int headroom = IEEE80211_ENCRYPT_HEADROOM; 33982475b1ccSMax Stepanov int i; 33992475b1ccSMax Stepanov 34002475b1ccSMax Stepanov for (i = 0; i < crypto->n_ciphers_pairwise; i++) { 34012475b1ccSMax Stepanov cs = ieee80211_cs_get(local, crypto->ciphers_pairwise[i], 34022475b1ccSMax Stepanov iftype); 34032475b1ccSMax Stepanov 34042475b1ccSMax Stepanov if (cs && headroom < cs->hdr_len) 34052475b1ccSMax Stepanov headroom = cs->hdr_len; 34062475b1ccSMax Stepanov } 34072475b1ccSMax Stepanov 34082475b1ccSMax Stepanov cs = ieee80211_cs_get(local, crypto->cipher_group, iftype); 34092475b1ccSMax Stepanov if (cs && headroom < cs->hdr_len) 34102475b1ccSMax Stepanov headroom = cs->hdr_len; 34112475b1ccSMax Stepanov 34122475b1ccSMax Stepanov return headroom; 34132475b1ccSMax Stepanov } 3414a7022e65SFelix Fietkau 3415a7022e65SFelix Fietkau static bool 3416a7022e65SFelix Fietkau ieee80211_extend_noa_desc(struct ieee80211_noa_data *data, u32 tsf, int i) 3417a7022e65SFelix Fietkau { 3418a7022e65SFelix Fietkau s32 end = data->desc[i].start + data->desc[i].duration - (tsf + 1); 3419a7022e65SFelix Fietkau int skip; 3420a7022e65SFelix Fietkau 3421a7022e65SFelix Fietkau if (end > 0) 3422a7022e65SFelix Fietkau return false; 3423a7022e65SFelix Fietkau 3424519ee691SJanusz.Dziedzic@tieto.com /* One shot NOA */ 3425519ee691SJanusz.Dziedzic@tieto.com if (data->count[i] == 1) 3426519ee691SJanusz.Dziedzic@tieto.com return false; 3427519ee691SJanusz.Dziedzic@tieto.com 3428519ee691SJanusz.Dziedzic@tieto.com if (data->desc[i].interval == 0) 3429519ee691SJanusz.Dziedzic@tieto.com return false; 3430519ee691SJanusz.Dziedzic@tieto.com 3431a7022e65SFelix Fietkau /* End time is in the past, check for repetitions */ 3432a7022e65SFelix Fietkau skip = DIV_ROUND_UP(-end, data->desc[i].interval); 3433a7022e65SFelix Fietkau if (data->count[i] < 255) { 3434a7022e65SFelix Fietkau if (data->count[i] <= skip) { 3435a7022e65SFelix Fietkau data->count[i] = 0; 3436a7022e65SFelix Fietkau return false; 3437a7022e65SFelix Fietkau } 3438a7022e65SFelix Fietkau 3439a7022e65SFelix Fietkau data->count[i] -= skip; 3440a7022e65SFelix Fietkau } 3441a7022e65SFelix Fietkau 3442a7022e65SFelix Fietkau data->desc[i].start += skip * data->desc[i].interval; 3443a7022e65SFelix Fietkau 3444a7022e65SFelix Fietkau return true; 3445a7022e65SFelix Fietkau } 3446a7022e65SFelix Fietkau 3447a7022e65SFelix Fietkau static bool 3448a7022e65SFelix Fietkau ieee80211_extend_absent_time(struct ieee80211_noa_data *data, u32 tsf, 3449a7022e65SFelix Fietkau s32 *offset) 3450a7022e65SFelix Fietkau { 3451a7022e65SFelix Fietkau bool ret = false; 3452a7022e65SFelix Fietkau int i; 3453a7022e65SFelix Fietkau 3454a7022e65SFelix Fietkau for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { 3455a7022e65SFelix Fietkau s32 cur; 3456a7022e65SFelix Fietkau 3457a7022e65SFelix Fietkau if (!data->count[i]) 3458a7022e65SFelix Fietkau continue; 3459a7022e65SFelix Fietkau 3460a7022e65SFelix Fietkau if (ieee80211_extend_noa_desc(data, tsf + *offset, i)) 3461a7022e65SFelix Fietkau ret = true; 3462a7022e65SFelix Fietkau 3463a7022e65SFelix Fietkau cur = data->desc[i].start - tsf; 3464a7022e65SFelix Fietkau if (cur > *offset) 3465a7022e65SFelix Fietkau continue; 3466a7022e65SFelix Fietkau 3467a7022e65SFelix Fietkau cur = data->desc[i].start + data->desc[i].duration - tsf; 3468a7022e65SFelix Fietkau if (cur > *offset) 3469a7022e65SFelix Fietkau *offset = cur; 3470a7022e65SFelix Fietkau } 3471a7022e65SFelix Fietkau 3472a7022e65SFelix Fietkau return ret; 3473a7022e65SFelix Fietkau } 3474a7022e65SFelix Fietkau 3475a7022e65SFelix Fietkau static u32 3476a7022e65SFelix Fietkau ieee80211_get_noa_absent_time(struct ieee80211_noa_data *data, u32 tsf) 3477a7022e65SFelix Fietkau { 3478a7022e65SFelix Fietkau s32 offset = 0; 3479a7022e65SFelix Fietkau int tries = 0; 3480a7022e65SFelix Fietkau /* 3481a7022e65SFelix Fietkau * arbitrary limit, used to avoid infinite loops when combined NoA 3482a7022e65SFelix Fietkau * descriptors cover the full time period. 3483a7022e65SFelix Fietkau */ 3484a7022e65SFelix Fietkau int max_tries = 5; 3485a7022e65SFelix Fietkau 3486a7022e65SFelix Fietkau ieee80211_extend_absent_time(data, tsf, &offset); 3487a7022e65SFelix Fietkau do { 3488a7022e65SFelix Fietkau if (!ieee80211_extend_absent_time(data, tsf, &offset)) 3489a7022e65SFelix Fietkau break; 3490a7022e65SFelix Fietkau 3491a7022e65SFelix Fietkau tries++; 3492a7022e65SFelix Fietkau } while (tries < max_tries); 3493a7022e65SFelix Fietkau 3494a7022e65SFelix Fietkau return offset; 3495a7022e65SFelix Fietkau } 3496a7022e65SFelix Fietkau 3497a7022e65SFelix Fietkau void ieee80211_update_p2p_noa(struct ieee80211_noa_data *data, u32 tsf) 3498a7022e65SFelix Fietkau { 3499a7022e65SFelix Fietkau u32 next_offset = BIT(31) - 1; 3500a7022e65SFelix Fietkau int i; 3501a7022e65SFelix Fietkau 3502a7022e65SFelix Fietkau data->absent = 0; 3503a7022e65SFelix Fietkau data->has_next_tsf = false; 3504a7022e65SFelix Fietkau for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { 3505a7022e65SFelix Fietkau s32 start; 3506a7022e65SFelix Fietkau 3507a7022e65SFelix Fietkau if (!data->count[i]) 3508a7022e65SFelix Fietkau continue; 3509a7022e65SFelix Fietkau 3510a7022e65SFelix Fietkau ieee80211_extend_noa_desc(data, tsf, i); 3511a7022e65SFelix Fietkau start = data->desc[i].start - tsf; 3512a7022e65SFelix Fietkau if (start <= 0) 3513a7022e65SFelix Fietkau data->absent |= BIT(i); 3514a7022e65SFelix Fietkau 3515a7022e65SFelix Fietkau if (next_offset > start) 3516a7022e65SFelix Fietkau next_offset = start; 3517a7022e65SFelix Fietkau 3518a7022e65SFelix Fietkau data->has_next_tsf = true; 3519a7022e65SFelix Fietkau } 3520a7022e65SFelix Fietkau 3521a7022e65SFelix Fietkau if (data->absent) 3522a7022e65SFelix Fietkau next_offset = ieee80211_get_noa_absent_time(data, tsf); 3523a7022e65SFelix Fietkau 3524a7022e65SFelix Fietkau data->next_tsf = tsf + next_offset; 3525a7022e65SFelix Fietkau } 3526a7022e65SFelix Fietkau EXPORT_SYMBOL(ieee80211_update_p2p_noa); 3527a7022e65SFelix Fietkau 3528a7022e65SFelix Fietkau int ieee80211_parse_p2p_noa(const struct ieee80211_p2p_noa_attr *attr, 3529a7022e65SFelix Fietkau struct ieee80211_noa_data *data, u32 tsf) 3530a7022e65SFelix Fietkau { 3531a7022e65SFelix Fietkau int ret = 0; 3532a7022e65SFelix Fietkau int i; 3533a7022e65SFelix Fietkau 3534a7022e65SFelix Fietkau memset(data, 0, sizeof(*data)); 3535a7022e65SFelix Fietkau 3536a7022e65SFelix Fietkau for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { 3537a7022e65SFelix Fietkau const struct ieee80211_p2p_noa_desc *desc = &attr->desc[i]; 3538a7022e65SFelix Fietkau 3539a7022e65SFelix Fietkau if (!desc->count || !desc->duration) 3540a7022e65SFelix Fietkau continue; 3541a7022e65SFelix Fietkau 3542a7022e65SFelix Fietkau data->count[i] = desc->count; 3543a7022e65SFelix Fietkau data->desc[i].start = le32_to_cpu(desc->start_time); 3544a7022e65SFelix Fietkau data->desc[i].duration = le32_to_cpu(desc->duration); 3545a7022e65SFelix Fietkau data->desc[i].interval = le32_to_cpu(desc->interval); 3546a7022e65SFelix Fietkau 3547a7022e65SFelix Fietkau if (data->count[i] > 1 && 3548a7022e65SFelix Fietkau data->desc[i].interval < data->desc[i].duration) 3549a7022e65SFelix Fietkau continue; 3550a7022e65SFelix Fietkau 3551a7022e65SFelix Fietkau ieee80211_extend_noa_desc(data, tsf, i); 3552a7022e65SFelix Fietkau ret++; 3553a7022e65SFelix Fietkau } 3554a7022e65SFelix Fietkau 3555a7022e65SFelix Fietkau if (ret) 3556a7022e65SFelix Fietkau ieee80211_update_p2p_noa(data, tsf); 3557a7022e65SFelix Fietkau 3558a7022e65SFelix Fietkau return ret; 3559a7022e65SFelix Fietkau } 3560a7022e65SFelix Fietkau EXPORT_SYMBOL(ieee80211_parse_p2p_noa); 3561057d5f4bSThomas Pedersen 3562057d5f4bSThomas Pedersen void ieee80211_recalc_dtim(struct ieee80211_local *local, 3563057d5f4bSThomas Pedersen struct ieee80211_sub_if_data *sdata) 3564057d5f4bSThomas Pedersen { 3565057d5f4bSThomas Pedersen u64 tsf = drv_get_tsf(local, sdata); 3566057d5f4bSThomas Pedersen u64 dtim_count = 0; 3567057d5f4bSThomas Pedersen u16 beacon_int = sdata->vif.bss_conf.beacon_int * 1024; 3568057d5f4bSThomas Pedersen u8 dtim_period = sdata->vif.bss_conf.dtim_period; 3569057d5f4bSThomas Pedersen struct ps_data *ps; 3570057d5f4bSThomas Pedersen u8 bcns_from_dtim; 3571057d5f4bSThomas Pedersen 3572057d5f4bSThomas Pedersen if (tsf == -1ULL || !beacon_int || !dtim_period) 3573057d5f4bSThomas Pedersen return; 3574057d5f4bSThomas Pedersen 3575057d5f4bSThomas Pedersen if (sdata->vif.type == NL80211_IFTYPE_AP || 3576057d5f4bSThomas Pedersen sdata->vif.type == NL80211_IFTYPE_AP_VLAN) { 3577057d5f4bSThomas Pedersen if (!sdata->bss) 3578057d5f4bSThomas Pedersen return; 3579057d5f4bSThomas Pedersen 3580057d5f4bSThomas Pedersen ps = &sdata->bss->ps; 3581057d5f4bSThomas Pedersen } else if (ieee80211_vif_is_mesh(&sdata->vif)) { 3582057d5f4bSThomas Pedersen ps = &sdata->u.mesh.ps; 3583057d5f4bSThomas Pedersen } else { 3584057d5f4bSThomas Pedersen return; 3585057d5f4bSThomas Pedersen } 3586057d5f4bSThomas Pedersen 3587057d5f4bSThomas Pedersen /* 3588057d5f4bSThomas Pedersen * actually finds last dtim_count, mac80211 will update in 3589057d5f4bSThomas Pedersen * __beacon_add_tim(). 3590057d5f4bSThomas Pedersen * dtim_count = dtim_period - (tsf / bcn_int) % dtim_period 3591057d5f4bSThomas Pedersen */ 3592057d5f4bSThomas Pedersen do_div(tsf, beacon_int); 3593057d5f4bSThomas Pedersen bcns_from_dtim = do_div(tsf, dtim_period); 3594057d5f4bSThomas Pedersen /* just had a DTIM */ 3595057d5f4bSThomas Pedersen if (!bcns_from_dtim) 3596057d5f4bSThomas Pedersen dtim_count = 0; 3597057d5f4bSThomas Pedersen else 3598057d5f4bSThomas Pedersen dtim_count = dtim_period - bcns_from_dtim; 3599057d5f4bSThomas Pedersen 3600057d5f4bSThomas Pedersen ps->dtim_count = dtim_count; 3601057d5f4bSThomas Pedersen } 360273de86a3SLuciano Coelho 360371e6195eSMichal Kazior static u8 ieee80211_chanctx_radar_detect(struct ieee80211_local *local, 360471e6195eSMichal Kazior struct ieee80211_chanctx *ctx) 360571e6195eSMichal Kazior { 360671e6195eSMichal Kazior struct ieee80211_sub_if_data *sdata; 360771e6195eSMichal Kazior u8 radar_detect = 0; 360871e6195eSMichal Kazior 360971e6195eSMichal Kazior lockdep_assert_held(&local->chanctx_mtx); 361071e6195eSMichal Kazior 361171e6195eSMichal Kazior if (WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED)) 361271e6195eSMichal Kazior return 0; 361371e6195eSMichal Kazior 361471e6195eSMichal Kazior list_for_each_entry(sdata, &ctx->reserved_vifs, reserved_chanctx_list) 361571e6195eSMichal Kazior if (sdata->reserved_radar_required) 361671e6195eSMichal Kazior radar_detect |= BIT(sdata->reserved_chandef.width); 361771e6195eSMichal Kazior 361871e6195eSMichal Kazior /* 361971e6195eSMichal Kazior * An in-place reservation context should not have any assigned vifs 362071e6195eSMichal Kazior * until it replaces the other context. 362171e6195eSMichal Kazior */ 362271e6195eSMichal Kazior WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER && 362371e6195eSMichal Kazior !list_empty(&ctx->assigned_vifs)); 362471e6195eSMichal Kazior 362571e6195eSMichal Kazior list_for_each_entry(sdata, &ctx->assigned_vifs, assigned_chanctx_list) 362671e6195eSMichal Kazior if (sdata->radar_required) 362771e6195eSMichal Kazior radar_detect |= BIT(sdata->vif.bss_conf.chandef.width); 362871e6195eSMichal Kazior 362971e6195eSMichal Kazior return radar_detect; 363071e6195eSMichal Kazior } 363171e6195eSMichal Kazior 363273de86a3SLuciano Coelho int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, 363373de86a3SLuciano Coelho const struct cfg80211_chan_def *chandef, 363473de86a3SLuciano Coelho enum ieee80211_chanctx_mode chanmode, 363573de86a3SLuciano Coelho u8 radar_detect) 363673de86a3SLuciano Coelho { 363773de86a3SLuciano Coelho struct ieee80211_local *local = sdata->local; 363873de86a3SLuciano Coelho struct ieee80211_sub_if_data *sdata_iter; 363973de86a3SLuciano Coelho enum nl80211_iftype iftype = sdata->wdev.iftype; 364073de86a3SLuciano Coelho struct ieee80211_chanctx *ctx; 364173de86a3SLuciano Coelho int total = 1; 3642e227300cSPurushottam Kushwaha struct iface_combination_params params = { 3643e227300cSPurushottam Kushwaha .radar_detect = radar_detect, 3644e227300cSPurushottam Kushwaha }; 364573de86a3SLuciano Coelho 364673de86a3SLuciano Coelho lockdep_assert_held(&local->chanctx_mtx); 364773de86a3SLuciano Coelho 364873de86a3SLuciano Coelho if (WARN_ON(hweight32(radar_detect) > 1)) 364973de86a3SLuciano Coelho return -EINVAL; 365073de86a3SLuciano Coelho 3651b6a55015SLuciano Coelho if (WARN_ON(chandef && chanmode == IEEE80211_CHANCTX_SHARED && 3652b6a55015SLuciano Coelho !chandef->chan)) 365373de86a3SLuciano Coelho return -EINVAL; 365473de86a3SLuciano Coelho 365573de86a3SLuciano Coelho if (WARN_ON(iftype >= NUM_NL80211_IFTYPES)) 365673de86a3SLuciano Coelho return -EINVAL; 365773de86a3SLuciano Coelho 3658ac668afeSJohannes Berg if (sdata->vif.type == NL80211_IFTYPE_AP || 3659ac668afeSJohannes Berg sdata->vif.type == NL80211_IFTYPE_MESH_POINT) { 3660ac668afeSJohannes Berg /* 3661ac668afeSJohannes Berg * always passing this is harmless, since it'll be the 3662ac668afeSJohannes Berg * same value that cfg80211 finds if it finds the same 3663ac668afeSJohannes Berg * interface ... and that's always allowed 3664ac668afeSJohannes Berg */ 3665ac668afeSJohannes Berg params.new_beacon_int = sdata->vif.bss_conf.beacon_int; 3666ac668afeSJohannes Berg } 3667ac668afeSJohannes Berg 366873de86a3SLuciano Coelho /* Always allow software iftypes */ 366973de86a3SLuciano Coelho if (local->hw.wiphy->software_iftypes & BIT(iftype)) { 367073de86a3SLuciano Coelho if (radar_detect) 367173de86a3SLuciano Coelho return -EINVAL; 367273de86a3SLuciano Coelho return 0; 367373de86a3SLuciano Coelho } 367473de86a3SLuciano Coelho 3675e227300cSPurushottam Kushwaha if (chandef) 3676e227300cSPurushottam Kushwaha params.num_different_channels = 1; 367773de86a3SLuciano Coelho 367873de86a3SLuciano Coelho if (iftype != NL80211_IFTYPE_UNSPECIFIED) 3679e227300cSPurushottam Kushwaha params.iftype_num[iftype] = 1; 368073de86a3SLuciano Coelho 368173de86a3SLuciano Coelho list_for_each_entry(ctx, &local->chanctx_list, list) { 36825bcae31dSMichal Kazior if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) 36835bcae31dSMichal Kazior continue; 3684e227300cSPurushottam Kushwaha params.radar_detect |= 3685e227300cSPurushottam Kushwaha ieee80211_chanctx_radar_detect(local, ctx); 368673de86a3SLuciano Coelho if (ctx->mode == IEEE80211_CHANCTX_EXCLUSIVE) { 3687e227300cSPurushottam Kushwaha params.num_different_channels++; 368873de86a3SLuciano Coelho continue; 368973de86a3SLuciano Coelho } 3690b6a55015SLuciano Coelho if (chandef && chanmode == IEEE80211_CHANCTX_SHARED && 369173de86a3SLuciano Coelho cfg80211_chandef_compatible(chandef, 369273de86a3SLuciano Coelho &ctx->conf.def)) 369373de86a3SLuciano Coelho continue; 3694e227300cSPurushottam Kushwaha params.num_different_channels++; 369573de86a3SLuciano Coelho } 369673de86a3SLuciano Coelho 369773de86a3SLuciano Coelho list_for_each_entry_rcu(sdata_iter, &local->interfaces, list) { 369873de86a3SLuciano Coelho struct wireless_dev *wdev_iter; 369973de86a3SLuciano Coelho 370073de86a3SLuciano Coelho wdev_iter = &sdata_iter->wdev; 370173de86a3SLuciano Coelho 370273de86a3SLuciano Coelho if (sdata_iter == sdata || 37030f611d28SAndrei Otcheretianski !ieee80211_sdata_running(sdata_iter) || 370473de86a3SLuciano Coelho local->hw.wiphy->software_iftypes & BIT(wdev_iter->iftype)) 370573de86a3SLuciano Coelho continue; 370673de86a3SLuciano Coelho 3707e227300cSPurushottam Kushwaha params.iftype_num[wdev_iter->iftype]++; 370873de86a3SLuciano Coelho total++; 370973de86a3SLuciano Coelho } 371073de86a3SLuciano Coelho 3711e227300cSPurushottam Kushwaha if (total == 1 && !params.radar_detect) 371273de86a3SLuciano Coelho return 0; 371373de86a3SLuciano Coelho 3714e227300cSPurushottam Kushwaha return cfg80211_check_combinations(local->hw.wiphy, ¶ms); 371573de86a3SLuciano Coelho } 37166fa001bcSMichal Kazior 37176fa001bcSMichal Kazior static void 37186fa001bcSMichal Kazior ieee80211_iter_max_chans(const struct ieee80211_iface_combination *c, 37196fa001bcSMichal Kazior void *data) 37206fa001bcSMichal Kazior { 37216fa001bcSMichal Kazior u32 *max_num_different_channels = data; 37226fa001bcSMichal Kazior 37236fa001bcSMichal Kazior *max_num_different_channels = max(*max_num_different_channels, 37246fa001bcSMichal Kazior c->num_different_channels); 37256fa001bcSMichal Kazior } 37266fa001bcSMichal Kazior 37276fa001bcSMichal Kazior int ieee80211_max_num_channels(struct ieee80211_local *local) 37286fa001bcSMichal Kazior { 37296fa001bcSMichal Kazior struct ieee80211_sub_if_data *sdata; 37306fa001bcSMichal Kazior struct ieee80211_chanctx *ctx; 37316fa001bcSMichal Kazior u32 max_num_different_channels = 1; 37326fa001bcSMichal Kazior int err; 3733e227300cSPurushottam Kushwaha struct iface_combination_params params = {0}; 37346fa001bcSMichal Kazior 37356fa001bcSMichal Kazior lockdep_assert_held(&local->chanctx_mtx); 37366fa001bcSMichal Kazior 37376fa001bcSMichal Kazior list_for_each_entry(ctx, &local->chanctx_list, list) { 37385bcae31dSMichal Kazior if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) 37395bcae31dSMichal Kazior continue; 37405bcae31dSMichal Kazior 3741e227300cSPurushottam Kushwaha params.num_different_channels++; 37426fa001bcSMichal Kazior 3743e227300cSPurushottam Kushwaha params.radar_detect |= 3744e227300cSPurushottam Kushwaha ieee80211_chanctx_radar_detect(local, ctx); 37456fa001bcSMichal Kazior } 37466fa001bcSMichal Kazior 37476fa001bcSMichal Kazior list_for_each_entry_rcu(sdata, &local->interfaces, list) 3748e227300cSPurushottam Kushwaha params.iftype_num[sdata->wdev.iftype]++; 37496fa001bcSMichal Kazior 3750e227300cSPurushottam Kushwaha err = cfg80211_iter_combinations(local->hw.wiphy, ¶ms, 3751e227300cSPurushottam Kushwaha ieee80211_iter_max_chans, 37526fa001bcSMichal Kazior &max_num_different_channels); 37536fa001bcSMichal Kazior if (err < 0) 37546fa001bcSMichal Kazior return err; 37556fa001bcSMichal Kazior 37566fa001bcSMichal Kazior return max_num_different_channels; 37576fa001bcSMichal Kazior } 375840b861a0SArik Nemtsov 375940b861a0SArik Nemtsov u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo) 376040b861a0SArik Nemtsov { 376140b861a0SArik Nemtsov *buf++ = WLAN_EID_VENDOR_SPECIFIC; 376240b861a0SArik Nemtsov *buf++ = 7; /* len */ 376340b861a0SArik Nemtsov *buf++ = 0x00; /* Microsoft OUI 00:50:F2 */ 376440b861a0SArik Nemtsov *buf++ = 0x50; 376540b861a0SArik Nemtsov *buf++ = 0xf2; 376640b861a0SArik Nemtsov *buf++ = 2; /* WME */ 376740b861a0SArik Nemtsov *buf++ = 0; /* WME info */ 376840b861a0SArik Nemtsov *buf++ = 1; /* WME ver */ 376940b861a0SArik Nemtsov *buf++ = qosinfo; /* U-APSD no in use */ 377040b861a0SArik Nemtsov 377140b861a0SArik Nemtsov return buf; 377240b861a0SArik Nemtsov } 3773ba8c3d6fSFelix Fietkau 3774f2ac7e30SMichal Kazior void ieee80211_txq_get_depth(struct ieee80211_txq *txq, 3775f2ac7e30SMichal Kazior unsigned long *frame_cnt, 3776f2ac7e30SMichal Kazior unsigned long *byte_cnt) 3777f2ac7e30SMichal Kazior { 3778f2ac7e30SMichal Kazior struct txq_info *txqi = to_txq_info(txq); 3779bb42f2d1SToke Høiland-Jørgensen u32 frag_cnt = 0, frag_bytes = 0; 3780bb42f2d1SToke Høiland-Jørgensen struct sk_buff *skb; 3781bb42f2d1SToke Høiland-Jørgensen 3782bb42f2d1SToke Høiland-Jørgensen skb_queue_walk(&txqi->frags, skb) { 3783bb42f2d1SToke Høiland-Jørgensen frag_cnt++; 3784bb42f2d1SToke Høiland-Jørgensen frag_bytes += skb->len; 3785bb42f2d1SToke Høiland-Jørgensen } 3786f2ac7e30SMichal Kazior 3787f2ac7e30SMichal Kazior if (frame_cnt) 3788bb42f2d1SToke Høiland-Jørgensen *frame_cnt = txqi->tin.backlog_packets + frag_cnt; 3789f2ac7e30SMichal Kazior 3790f2ac7e30SMichal Kazior if (byte_cnt) 3791bb42f2d1SToke Høiland-Jørgensen *byte_cnt = txqi->tin.backlog_bytes + frag_bytes; 3792f2ac7e30SMichal Kazior } 3793f2ac7e30SMichal Kazior EXPORT_SYMBOL(ieee80211_txq_get_depth); 3794f438ceb8SEmmanuel Grumbach 3795f438ceb8SEmmanuel Grumbach const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS] = { 3796f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_VO, 3797f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_VI, 3798f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_BE, 3799f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_BK 3800f438ceb8SEmmanuel Grumbach }; 3801