From 3073a7c20cea0b7a9946fe61f09d43aa61deb9ea Mon Sep 17 00:00:00 2001 From: Ben Greear Date: Mon, 23 Apr 2012 12:50:32 -0700 Subject: [PATCH] mac80211: Add more ethtools stats: survey, rates, etc The signal and noise are forced to be positive since ethtool deals in unsigned 64-bit values and this number should be human readable. This gives easy access to some of the data formerly exposed in the deprecated /proc/net/wireless file. Signed-off-by: Ben Greear Signed-off-by: John W. Linville --- net/mac80211/cfg.c | 89 +++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 81 insertions(+), 8 deletions(-) diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index a38b2673065..39b1fffb24f 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -455,7 +455,9 @@ static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = { "rx_duplicates", "rx_fragments", "rx_dropped", "tx_packets", "tx_bytes", "tx_fragments", "tx_filtered", "tx_retry_failed", "tx_retries", - "beacon_loss" + "beacon_loss", "sta_state", "txrate", "rxrate", "signal", + "channel", "noise", "ch_time", "ch_time_busy", + "ch_time_ext_busy", "ch_time_rx", "ch_time_tx" }; #define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats) @@ -484,7 +486,10 @@ static void ieee80211_get_et_stats(struct wiphy *wiphy, struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct sta_info *sta; struct ieee80211_local *local = sdata->local; - int i; + struct station_info sinfo; + struct survey_info survey; + int i, q; +#define STA_STATS_SURVEY_LEN 7 memset(data, 0, sizeof(u64) * STA_STATS_LEN); @@ -516,11 +521,30 @@ static void ieee80211_get_et_stats(struct wiphy *wiphy, if (sdata->vif.type == NL80211_IFTYPE_STATION) { sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid); - if (sta && !WARN_ON(sta->sdata->dev != dev)) { - i = 0; - ADD_STA_STATS(sta); - BUG_ON(i != STA_STATS_LEN); - } + + if (!(sta && !WARN_ON(sta->sdata->dev != dev))) + goto do_survey; + + i = 0; + ADD_STA_STATS(sta); + + data[i++] = sta->sta_state; + + sinfo.filled = 0; + sta_set_sinfo(sta, &sinfo); + + if (sinfo.filled | STATION_INFO_TX_BITRATE) + data[i] = 100000 * + cfg80211_calculate_bitrate(&sinfo.txrate); + i++; + if (sinfo.filled | STATION_INFO_RX_BITRATE) + data[i] = 100000 * + cfg80211_calculate_bitrate(&sinfo.rxrate); + i++; + + if (sinfo.filled | STATION_INFO_SIGNAL_AVG) + data[i] = (u8)sinfo.signal_avg; + i++; } else { list_for_each_entry_rcu(sta, &local->sta_list, list) { /* Make sure this station belongs to the proper dev */ @@ -529,12 +553,61 @@ static void ieee80211_get_et_stats(struct wiphy *wiphy, i = 0; ADD_STA_STATS(sta); - BUG_ON(i != STA_STATS_LEN); } } +do_survey: + i = STA_STATS_LEN - STA_STATS_SURVEY_LEN; + /* Get survey stats for current channel */ + q = 0; + while (true) { + survey.filled = 0; + if (drv_get_survey(local, q, &survey) != 0) { + survey.filled = 0; + break; + } + + if (survey.channel && + (local->oper_channel->center_freq == + survey.channel->center_freq)) + break; + q++; + } + + if (survey.filled) + data[i++] = survey.channel->center_freq; + else + data[i++] = 0; + if (survey.filled & SURVEY_INFO_NOISE_DBM) + data[i++] = (u8)survey.noise; + else + data[i++] = -1LL; + if (survey.filled & SURVEY_INFO_CHANNEL_TIME) + data[i++] = survey.channel_time; + else + data[i++] = -1LL; + if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY) + data[i++] = survey.channel_time_busy; + else + data[i++] = -1LL; + if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) + data[i++] = survey.channel_time_ext_busy; + else + data[i++] = -1LL; + if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX) + data[i++] = survey.channel_time_rx; + else + data[i++] = -1LL; + if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX) + data[i++] = survey.channel_time_tx; + else + data[i++] = -1LL; + rcu_read_unlock(); + if (WARN_ON(i != STA_STATS_LEN)) + return; + drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN])); }