mac80211: Switch to a virtual time-based airtime scheduler

[linux-2.6-microblaze.git] / net / mac80211 / debugfs.c

diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index fc34ae2..8dbfe32 100644 (file)
--- 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,