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/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;
 };