1 files changed, 57 insertions, 13 deletions

diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index fc34ae2b604c..8dbfe325ee66 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -216,14 +216,14 @@ static ssize_t aql_txq_limit_read(struct file *file,
 			"VI	%u		%u\n"
 			"BE	%u		%u\n"
 			"BK	%u		%u\n",
-			local->aql_txq_limit_low[IEEE80211_AC_VO],
-			local->aql_txq_limit_high[IEEE80211_AC_VO],
-			local->aql_txq_limit_low[IEEE80211_AC_VI],
-			local->aql_txq_limit_high[IEEE80211_AC_VI],
-			local->aql_txq_limit_low[IEEE80211_AC_BE],
-			local->aql_txq_limit_high[IEEE80211_AC_BE],
-			local->aql_txq_limit_low[IEEE80211_AC_BK],
-			local->aql_txq_limit_high[IEEE80211_AC_BK]);
+			local->airtime[IEEE80211_AC_VO].aql_txq_limit_low,
+			local->airtime[IEEE80211_AC_VO].aql_txq_limit_high,
+			local->airtime[IEEE80211_AC_VI].aql_txq_limit_low,
+			local->airtime[IEEE80211_AC_VI].aql_txq_limit_high,
+			local->airtime[IEEE80211_AC_BE].aql_txq_limit_low,
+			local->airtime[IEEE80211_AC_BE].aql_txq_limit_high,
+			local->airtime[IEEE80211_AC_BK].aql_txq_limit_low,
+			local->airtime[IEEE80211_AC_BK].aql_txq_limit_high);
 	return simple_read_from_buffer(user_buf, count, ppos,
 				       buf, len);
 }
@@ -255,11 +255,11 @@ static ssize_t aql_txq_limit_write(struct file *file,
 	if (ac >= IEEE80211_NUM_ACS)
 		return -EINVAL;
 
-	q_limit_low_old = local->aql_txq_limit_low[ac];
-	q_limit_high_old = local->aql_txq_limit_high[ac];
+	q_limit_low_old = local->airtime[ac].aql_txq_limit_low;
+	q_limit_high_old = local->airtime[ac].aql_txq_limit_high;
 
-	local->aql_txq_limit_low[ac] = q_limit_low;
-	local->aql_txq_limit_high[ac] = q_limit_high;
+	local->airtime[ac].aql_txq_limit_low = q_limit_low;
+	local->airtime[ac].aql_txq_limit_high = q_limit_high;
 
 	mutex_lock(&local->sta_mtx);
 	list_for_each_entry(sta, &local->sta_list, list) {
@@ -382,6 +382,46 @@ static const struct file_operations force_tx_status_ops = {
 	.llseek = default_llseek,
 };
 
+static ssize_t airtime_read(struct file *file,
+			    char __user *user_buf,
+			    size_t count,
+			    loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	char buf[200];
+	u64 v_t[IEEE80211_NUM_ACS];
+	u64 wt[IEEE80211_NUM_ACS];
+	int len = 0, ac;
+
+	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
+		spin_lock_bh(&local->airtime[ac].lock);
+		v_t[ac] = local->airtime[ac].v_t;
+		wt[ac] = local->airtime[ac].weight_sum;
+		spin_unlock_bh(&local->airtime[ac].lock);
+	}
+	len = scnprintf(buf, sizeof(buf),
+			"\tVO         VI         BE         BK\n"
+			"Virt-t\t%-10llu %-10llu %-10llu %-10llu\n"
+			"Weight\t%-10llu %-10llu %-10llu %-10llu\n",
+			v_t[0],
+			v_t[1],
+			v_t[2],
+			v_t[3],
+			wt[0],
+			wt[1],
+			wt[2],
+			wt[3]);
+
+	return simple_read_from_buffer(user_buf, count, ppos,
+				       buf, len);
+}
+
+static const struct file_operations airtime_ops = {
+	.read = airtime_read,
+	.open = simple_open,
+	.llseek = default_llseek,
+};
+
 #ifdef CONFIG_PM
 static ssize_t reset_write(struct file *file, const char __user *user_buf,
 			   size_t count, loff_t *ppos)
@@ -632,7 +672,11 @@ void debugfs_hw_add(struct ieee80211_local *local)
 	if (local->ops->wake_tx_queue)
 		DEBUGFS_ADD_MODE(aqm, 0600);
 
-	DEBUGFS_ADD_MODE(airtime_flags, 0600);
+	if (wiphy_ext_feature_isset(local->hw.wiphy,
+				    NL80211_EXT_FEATURE_AIRTIME_FAIRNESS)) {
+		DEBUGFS_ADD_MODE(airtime, 0600);
+		DEBUGFS_ADD_MODE(airtime_flags, 0600);
+	}
 
 	DEBUGFS_ADD(aql_txq_limit);
 	debugfs_create_u32("aql_threshold", 0600,