diff options
Diffstat (limited to 'net/mac80211/util.c')
| -rw-r--r-- | net/mac80211/util.c | 116 |
1 files changed, 89 insertions, 27 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 58f58bd5202f..7390de4946a9 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -4,7 +4,7 @@ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> * Copyright 2013-2014 Intel Mobile Communications GmbH - * Copyright (C) 2015 Intel Deutschland GmbH + * Copyright (C) 2015-2016 Intel Deutschland GmbH * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -1928,6 +1928,9 @@ int ieee80211_reconfig(struct ieee80211_local *local) BSS_CHANGED_IDLE | BSS_CHANGED_TXPOWER; + if (sdata->vif.mu_mimo_owner) + changed |= BSS_CHANGED_MU_GROUPS; + switch (sdata->vif.type) { case NL80211_IFTYPE_STATION: changed |= BSS_CHANGED_ASSOC | @@ -2371,10 +2374,23 @@ u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, switch (chandef->width) { case NL80211_CHAN_WIDTH_160: - vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_160MHZ; + /* + * Convert 160 MHz channel width to new style as interop + * workaround. + */ + vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; + vht_oper->center_freq_seg2_idx = vht_oper->center_freq_seg1_idx; + if (chandef->chan->center_freq < chandef->center_freq1) + vht_oper->center_freq_seg1_idx -= 8; + else + vht_oper->center_freq_seg1_idx += 8; break; case NL80211_CHAN_WIDTH_80P80: - vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80P80MHZ; + /* + * Convert 80+80 MHz channel width to new style as interop + * workaround. + */ + vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; break; case NL80211_CHAN_WIDTH_80: vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; @@ -2390,17 +2406,13 @@ u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, return pos + sizeof(struct ieee80211_vht_operation); } -void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan, - const struct ieee80211_ht_operation *ht_oper, - struct cfg80211_chan_def *chandef) +bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, + struct cfg80211_chan_def *chandef) { enum nl80211_channel_type channel_type; - if (!ht_oper) { - cfg80211_chandef_create(chandef, control_chan, - NL80211_CHAN_NO_HT); - return; - } + if (!ht_oper) + return false; switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { case IEEE80211_HT_PARAM_CHA_SEC_NONE: @@ -2414,42 +2426,66 @@ void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan, break; default: channel_type = NL80211_CHAN_NO_HT; + return false; } - cfg80211_chandef_create(chandef, control_chan, channel_type); + cfg80211_chandef_create(chandef, chandef->chan, channel_type); + return true; } -void ieee80211_vht_oper_to_chandef(struct ieee80211_channel *control_chan, - const struct ieee80211_vht_operation *oper, - struct cfg80211_chan_def *chandef) +bool ieee80211_chandef_vht_oper(const struct ieee80211_vht_operation *oper, + struct cfg80211_chan_def *chandef) { + struct cfg80211_chan_def new = *chandef; + int cf1, cf2; + if (!oper) - return; + return false; - chandef->chan = control_chan; + cf1 = ieee80211_channel_to_frequency(oper->center_freq_seg1_idx, + chandef->chan->band); + cf2 = ieee80211_channel_to_frequency(oper->center_freq_seg2_idx, + chandef->chan->band); switch (oper->chan_width) { case IEEE80211_VHT_CHANWIDTH_USE_HT: break; case IEEE80211_VHT_CHANWIDTH_80MHZ: - chandef->width = NL80211_CHAN_WIDTH_80; + new.width = NL80211_CHAN_WIDTH_80; + new.center_freq1 = cf1; + /* If needed, adjust based on the newer interop workaround. */ + if (oper->center_freq_seg2_idx) { + unsigned int diff; + + diff = abs(oper->center_freq_seg2_idx - + oper->center_freq_seg1_idx); + if (diff == 8) { + new.width = NL80211_CHAN_WIDTH_160; + new.center_freq1 = cf2; + } else if (diff > 8) { + new.width = NL80211_CHAN_WIDTH_80P80; + new.center_freq2 = cf2; + } + } break; case IEEE80211_VHT_CHANWIDTH_160MHZ: - chandef->width = NL80211_CHAN_WIDTH_160; + new.width = NL80211_CHAN_WIDTH_160; + new.center_freq1 = cf1; break; case IEEE80211_VHT_CHANWIDTH_80P80MHZ: - chandef->width = NL80211_CHAN_WIDTH_80P80; + new.width = NL80211_CHAN_WIDTH_80P80; + new.center_freq1 = cf1; + new.center_freq2 = cf2; break; default: - break; + return false; } - chandef->center_freq1 = - ieee80211_channel_to_frequency(oper->center_freq_seg1_idx, - control_chan->band); - chandef->center_freq2 = - ieee80211_channel_to_frequency(oper->center_freq_seg2_idx, - control_chan->band); + if (!cfg80211_chandef_valid(&new)) + return false; + + *chandef = new; + return true; } int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef, @@ -2672,6 +2708,18 @@ u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, sband = local->hw.wiphy->bands[status->band]; bitrate = sband->bitrates[status->rate_idx].bitrate; ri.legacy = DIV_ROUND_UP(bitrate, (1 << shift)); + + if (status->flag & RX_FLAG_MACTIME_PLCP_START) { + /* TODO: handle HT/VHT preambles */ + if (status->band == IEEE80211_BAND_5GHZ) { + ts += 20 << shift; + mpdu_offset += 2; + } else if (status->flag & RX_FLAG_SHORTPRE) { + ts += 96; + } else { + ts += 192; + } + } } rate = cfg80211_calculate_bitrate(&ri); @@ -3357,3 +3405,17 @@ void ieee80211_init_tx_queue(struct ieee80211_sub_if_data *sdata, txqi->txq.ac = IEEE80211_AC_BE; } } + +void ieee80211_txq_get_depth(struct ieee80211_txq *txq, + unsigned long *frame_cnt, + unsigned long *byte_cnt) +{ + struct txq_info *txqi = to_txq_info(txq); + + if (frame_cnt) + *frame_cnt = txqi->queue.qlen; + + if (byte_cnt) + *byte_cnt = txqi->byte_cnt; +} +EXPORT_SYMBOL(ieee80211_txq_get_depth); |