ath9k: Improve debugfs printout for stations.

Add interface address so it can be mapped to a local
interface.  Add max-ampdu and mpdu-density.

Print out the tid->baw_size
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/ath9k.h

@@ -253,6 +253,7 @@ struct ath_node {
 #ifdef CONFIG_ATH9K_DEBUGFS
 	struct list_head list; /* for sc->nodes */
 	struct ieee80211_sta *sta; /* station struct we're part of */
+	struct ieee80211_vif *vif; /* interface with which we're associated */
 #endif
 	struct ath_atx_tid tid[WME_NUM_TID];
 	struct ath_atx_ac ac[WME_NUM_AC];

drivers/net/wireless/ath/ath9k/debug.c

@@ -708,24 +708,29 @@ static ssize_t read_file_stations(struct file *file, char __user *user_buf,
 
 	len += snprintf(buf + len, size - len,
 			"Stations:\n"
-			" tid: addr sched paused buf_q-empty an ac\n"
+			" tid: addr sched paused buf_q-empty an ac baw\n"
 			" ac: addr sched tid_q-empty txq\n");
 
 	spin_lock(&sc->nodes_lock);
 	list_for_each_entry(an, &sc->nodes, list) {
+		unsigned short ma = an->maxampdu;
+		if (ma == 0)
+			ma = 65535; /* see ath_lookup_rate */
 		len += snprintf(buf + len, size - len,
-				"%pM\n", an->sta->addr);
+				"iface: %pM  sta: %pM max-ampdu: %hu mpdu-density: %uus\n",
+				an->vif->addr, an->sta->addr, ma,
+				(unsigned int)(an->mpdudensity));
 		if (len >= size)
 			goto done;
 
 		for (q = 0; q < WME_NUM_TID; q++) {
 			struct ath_atx_tid *tid = &(an->tid[q]);
 			len += snprintf(buf + len, size - len,
-					" tid: %p %s %s %i %p %p\n",
+					" tid: %p %s %s %i %p %p %hu\n",
 					tid, tid->sched ? "sched" : "idle",
 					tid->paused ? "paused" : "running",
 					skb_queue_empty(&tid->buf_q),
-					tid->an, tid->ac);
+					tid->an, tid->ac, tid->baw_size);
 			if (len >= size)
 				goto done;
 		}

drivers/net/wireless/ath/ath9k/main.c

@@ -630,7 +630,8 @@ void ath_ani_calibrate(unsigned long data)
 	}
 }
 
-static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta)
+static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta,
+			    struct ieee80211_vif *vif)
 {
 	struct ath_node *an;
 	an = (struct ath_node *)sta->drv_priv;
@@ -640,6 +641,7 @@ static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta)
 	list_add(&an->list, &sc->nodes);
 	spin_unlock(&sc->nodes_lock);
 	an->sta = sta;
+	an->vif = vif;
 #endif
 	if (sc->sc_flags & SC_OP_TXAGGR) {
 		ath_tx_node_init(sc, an);
@@ -1800,7 +1802,7 @@ static int ath9k_sta_add(struct ieee80211_hw *hw,
 	struct ath_node *an = (struct ath_node *) sta->drv_priv;
 	struct ieee80211_key_conf ps_key = { };
 
-	ath_node_attach(sc, sta);
+	ath_node_attach(sc, sta, vif);
 
 	if (vif->type != NL80211_IFTYPE_AP &&
 	    vif->type != NL80211_IFTYPE_AP_VLAN)