1 files changed, 57 insertions, 3 deletions

diff --git a/drivers/net/wireless/ath/ath9k/debug_sta.c b/drivers/net/wireless/ath/ath9k/debug_sta.c
index 2a3a3c4671bc..efc692ee67d4 100644
--- a/drivers/net/wireless/ath/ath9k/debug_sta.c
+++ b/drivers/net/wireless/ath/ath9k/debug_sta.c
@@ -116,12 +116,12 @@ void ath_debug_rate_stats(struct ath_softc *sc,
 		if (rxs->rate_idx >= ARRAY_SIZE(rstats->ht_stats))
 			goto exit;
 
-		if (rxs->flag & RX_FLAG_40MHZ)
+		if ((rxs->bw == RATE_INFO_BW_40))
 			rstats->ht_stats[rxs->rate_idx].ht40_cnt++;
 		else
 			rstats->ht_stats[rxs->rate_idx].ht20_cnt++;
 
-		if (rxs->flag & RX_FLAG_SHORT_GI)
+		if (rxs->enc_flags & RX_ENC_FLAG_SHORT_GI)
 			rstats->ht_stats[rxs->rate_idx].sgi_cnt++;
 		else
 			rstats->ht_stats[rxs->rate_idx].lgi_cnt++;
@@ -130,7 +130,7 @@ void ath_debug_rate_stats(struct ath_softc *sc,
 	}
 
 	if (IS_CCK_RATE(rs->rs_rate)) {
-		if (rxs->flag & RX_FLAG_SHORTPRE)
+		if (rxs->enc_flags & RX_ENC_FLAG_SHORTPRE)
 			rstats->cck_stats[rxs->rate_idx].cck_sp_cnt++;
 		else
 			rstats->cck_stats[rxs->rate_idx].cck_lp_cnt++;
@@ -242,6 +242,59 @@ static const struct file_operations fops_node_recv = {
 	.llseek = default_llseek,
 };
 
+void ath_debug_airtime(struct ath_softc *sc,
+		struct ath_node *an,
+		u32 rx,
+		u32 tx)
+{
+	struct ath_airtime_stats *astats = &an->airtime_stats;
+
+	astats->rx_airtime += rx;
+	astats->tx_airtime += tx;
+}
+
+static ssize_t read_airtime(struct file *file, char __user *user_buf,
+			size_t count, loff_t *ppos)
+{
+	struct ath_node *an = file->private_data;
+	struct ath_airtime_stats *astats;
+	static const char *qname[4] = {
+		"VO", "VI", "BE", "BK"
+	};
+	u32 len = 0, size = 256;
+	char *buf;
+	size_t retval;
+	int i;
+
+	buf = kzalloc(size, GFP_KERNEL);
+	if (buf == NULL)
+		return -ENOMEM;
+
+	astats = &an->airtime_stats;
+
+	len += scnprintf(buf + len, size - len, "RX: %u us\n", astats->rx_airtime);
+	len += scnprintf(buf + len, size - len, "TX: %u us\n", astats->tx_airtime);
+	len += scnprintf(buf + len, size - len, "Deficit: ");
+	for (i = 0; i < 4; i++)
+		len += scnprintf(buf+len, size - len, "%s: %lld us ", qname[i], an->airtime_deficit[i]);
+	if (len < size)
+		buf[len++] = '\n';
+
+	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+	kfree(buf);
+
+	return retval;
+}
+
+
+static const struct file_operations fops_airtime = {
+	.read = read_airtime,
+	.open = simple_open,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,
+};
+
+
 void ath9k_sta_add_debugfs(struct ieee80211_hw *hw,
 			   struct ieee80211_vif *vif,
 			   struct ieee80211_sta *sta,
@@ -251,4 +304,5 @@ void ath9k_sta_add_debugfs(struct ieee80211_hw *hw,
 
 	debugfs_create_file("node_aggr", S_IRUGO, dir, an, &fops_node_aggr);
 	debugfs_create_file("node_recv", S_IRUGO, dir, an, &fops_node_recv);
+	debugfs_create_file("airtime", S_IRUGO, dir, an, &fops_airtime);
 }