Commit b1ab7925 authored by Ben Greear's avatar Ben Greear Committed by John W. Linville

mac80211: Support getting sta_info stats via ethtool.

This lets ethtool print out stats related to stations
connected to the interface.  Does not yet get stats
from the underlying driver.
Signed-off-by: default avatarBen Greear <greearb@candelatech.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent d6199218
......@@ -450,6 +450,94 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
}
static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
"rx_packets", "rx_bytes", "wep_weak_iv_count",
"rx_duplicates", "rx_fragments", "rx_dropped",
"tx_packets", "tx_bytes", "tx_fragments",
"tx_filtered", "tx_retry_failed", "tx_retries",
"beacon_loss"
};
#define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
struct net_device *dev,
int sset)
{
if (sset == ETH_SS_STATS)
return STA_STATS_LEN;
return -EOPNOTSUPP;
}
static void ieee80211_get_et_stats(struct wiphy *wiphy,
struct net_device *dev,
struct ethtool_stats *stats,
u64 *data)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct sta_info *sta;
struct ieee80211_local *local = sdata->local;
int i;
memset(data, 0, sizeof(u64) * STA_STATS_LEN);
#define ADD_STA_STATS(sta) \
do { \
data[i++] += sta->rx_packets; \
data[i++] += sta->rx_bytes; \
data[i++] += sta->wep_weak_iv_count; \
data[i++] += sta->num_duplicates; \
data[i++] += sta->rx_fragments; \
data[i++] += sta->rx_dropped; \
\
data[i++] += sta->tx_packets; \
data[i++] += sta->tx_bytes; \
data[i++] += sta->tx_fragments; \
data[i++] += sta->tx_filtered_count; \
data[i++] += sta->tx_retry_failed; \
data[i++] += sta->tx_retry_count; \
data[i++] += sta->beacon_loss_count; \
} while (0)
/* For Managed stations, find the single station based on BSSID
* and use that. For interface types, iterate through all available
* stations and add stats for any station that is assigned to this
* network device.
*/
rcu_read_lock();
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);
}
} else {
list_for_each_entry_rcu(sta, &local->sta_list, list) {
/* Make sure this station belongs to the proper dev */
if (sta->sdata->dev != dev)
continue;
i = 0;
ADD_STA_STATS(sta);
BUG_ON(i != STA_STATS_LEN);
}
}
rcu_read_unlock();
}
static void ieee80211_get_et_strings(struct wiphy *wiphy,
struct net_device *dev,
u32 sset, u8 *data)
{
if (sset == ETH_SS_STATS) {
int sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
memcpy(data, *ieee80211_gstrings_sta_stats, sz_sta_stats);
}
}
static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
int idx, u8 *mac, struct station_info *sinfo)
......@@ -2794,4 +2882,7 @@ struct cfg80211_ops mac80211_config_ops = {
#ifdef CONFIG_PM
.set_wakeup = ieee80211_set_wakeup,
#endif
.get_et_sset_count = ieee80211_get_et_sset_count,
.get_et_stats = ieee80211_get_et_stats,
.get_et_strings = ieee80211_get_et_strings,
};
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