nl80211/mac80211: Add retry and failed transmission count to station info
This information is already available in mac80211, we just need to export it
via cfg80211 and nl80211.
Signed-off-by: Bruno Randolf <br1@einfach.org>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index e451f17..c08709f 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -1137,6 +1137,8 @@
* @NL80211_STA_INFO_RX_PACKETS: total received packet (u32, from this station)
* @NL80211_STA_INFO_TX_PACKETS: total transmitted packets (u32, to this
* station)
+ * @NL80211_STA_INFO_TX_RETRIES: total retries (u32, to this station)
+ * @NL80211_STA_INFO_TX_FAILED: total failed packets (u32, to this station)
*/
enum nl80211_sta_info {
__NL80211_STA_INFO_INVALID,
@@ -1150,6 +1152,8 @@
NL80211_STA_INFO_TX_BITRATE,
NL80211_STA_INFO_RX_PACKETS,
NL80211_STA_INFO_TX_PACKETS,
+ NL80211_STA_INFO_TX_RETRIES,
+ NL80211_STA_INFO_TX_FAILED,
/* keep last */
__NL80211_STA_INFO_AFTER_LAST,
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 0f77515..e76daaa 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -401,6 +401,8 @@
* (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
* @STATION_INFO_RX_PACKETS: @rx_packets filled
* @STATION_INFO_TX_PACKETS: @tx_packets filled
+ * @STATION_INFO_TX_RETRIES: @tx_retries filled
+ * @STATION_INFO_TX_FAILED: @tx_failed filled
*/
enum station_info_flags {
STATION_INFO_INACTIVE_TIME = 1<<0,
@@ -413,6 +415,8 @@
STATION_INFO_TX_BITRATE = 1<<7,
STATION_INFO_RX_PACKETS = 1<<8,
STATION_INFO_TX_PACKETS = 1<<9,
+ STATION_INFO_TX_RETRIES = 1<<10,
+ STATION_INFO_TX_FAILED = 1<<11,
};
/**
@@ -462,6 +466,8 @@
* @txrate: current unicast bitrate to this station
* @rx_packets: packets received from this station
* @tx_packets: packets transmitted to this station
+ * @tx_retries: cumulative retry counts
+ * @tx_failed: number of failed transmissions (retries exceeded, no ACK)
* @generation: generation number for nl80211 dumps.
* This number should increase every time the list of stations
* changes, i.e. when a station is added or removed, so that
@@ -479,6 +485,8 @@
struct rate_info txrate;
u32 rx_packets;
u32 tx_packets;
+ u32 tx_retries;
+ u32 tx_failed;
int generation;
};
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 8b0e874..2e5a3fb 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -327,6 +327,8 @@
STATION_INFO_TX_BYTES |
STATION_INFO_RX_PACKETS |
STATION_INFO_TX_PACKETS |
+ STATION_INFO_TX_RETRIES |
+ STATION_INFO_TX_FAILED |
STATION_INFO_TX_BITRATE;
sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
@@ -334,6 +336,8 @@
sinfo->tx_bytes = sta->tx_bytes;
sinfo->rx_packets = sta->rx_packets;
sinfo->tx_packets = sta->tx_packets;
+ sinfo->tx_retries = sta->tx_retry_count;
+ sinfo->tx_failed = sta->tx_retry_failed;
if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
(sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 9942f0b..524f554 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1890,6 +1890,12 @@
if (sinfo->filled & STATION_INFO_TX_PACKETS)
NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
sinfo->tx_packets);
+ if (sinfo->filled & STATION_INFO_TX_RETRIES)
+ NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
+ sinfo->tx_retries);
+ if (sinfo->filled & STATION_INFO_TX_FAILED)
+ NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
+ sinfo->tx_failed);
nla_nest_end(msg, sinfoattr);
return genlmsg_end(msg, hdr);