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 <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index a38b267..39b1fff 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -455,7 +455,9 @@
"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 @@
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 @@
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 @@
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]));
}
