iwl3945 : fix rate scaling

[linux-2.6-omap-h63xx.git] / drivers / net / wireless / iwlwifi / iwl-agn-rs.c

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 9bcebf2f460765e4cd6cdf2486954b1adf9cefbf..cab7842a73aaed9cb44bdb536277389ea42e6e1f 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -801,7 +801,10 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
            !(info->flags & IEEE80211_TX_STAT_AMPDU))
                return;
 
-       retries = info->status.rates[0].count - 1;
+       if (info->flags & IEEE80211_TX_STAT_AMPDU)
+               retries = 0;
+       else
+               retries = info->status.rates[0].count - 1;
 
        if (retries > 15)
                retries = 15;
@@ -913,7 +916,7 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
                        tpt = search_tbl->expected_tpt[rs_index];
                else
                        tpt = 0;
-               if (info->flags & IEEE80211_TX_CTL_AMPDU)
+               if (info->flags & IEEE80211_TX_STAT_AMPDU)
                        rs_collect_tx_data(search_win, rs_index, tpt,
                                           info->status.ampdu_ack_len,
                                           info->status.ampdu_ack_map);
@@ -929,7 +932,7 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
                        tpt = curr_tbl->expected_tpt[rs_index];
                else
                        tpt = 0;
-               if (info->flags & IEEE80211_TX_CTL_AMPDU)
+               if (info->flags & IEEE80211_TX_STAT_AMPDU)
                        rs_collect_tx_data(window, rs_index, tpt,
                                           info->status.ampdu_ack_len,
                                           info->status.ampdu_ack_map);
@@ -941,7 +944,7 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
        /* If not searching for new mode, increment success/failed counter
         * ... these help determine when to start searching again */
        if (lq_sta->stay_in_tbl) {
-               if (info->flags & IEEE80211_TX_CTL_AMPDU) {
+               if (info->flags & IEEE80211_TX_STAT_AMPDU) {
                        lq_sta->total_success += info->status.ampdu_ack_map;
                        lq_sta->total_failed +=
                             (info->status.ampdu_ack_len - info->status.ampdu_ack_map);
@@ -1700,6 +1703,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
        u16 high_low;
        s32 sr;
        u8 tid = MAX_TID_COUNT;
+       struct iwl_tid_data *tid_data;
 
        IWL_DEBUG_RATE(priv, "rate scale calculate new rate for skb\n");
 
@@ -1896,7 +1900,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
                if (high != IWL_RATE_INVALID && sr >= IWL_RATE_INCREASE_TH)
                        scale_action = 1;
                else if (low != IWL_RATE_INVALID)
-                       scale_action = -1;
+                       scale_action = 0;
        }
 
        /* Both adjacent throughputs are measured, but neither one has better
@@ -1917,9 +1921,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
                                        sr >= IWL_RATE_INCREASE_TH) {
                                scale_action = 1;
                        } else {
-                               IWL_DEBUG_RATE(priv,
-                                   "decrease rate because of high tpt\n");
-                               scale_action = -1;
+                               scale_action = 0;
                        }
 
                /* Lower adjacent rate's throughput is measured */
@@ -2035,8 +2037,15 @@ lq_update:
                        if ((lq_sta->last_tpt > IWL_AGG_TPT_THREHOLD) &&
                            (lq_sta->tx_agg_tid_en & (1 << tid)) &&
                            (tid != MAX_TID_COUNT)) {
-                               IWL_DEBUG_RATE(priv, "try to aggregate tid %d\n", tid);
-                               rs_tl_turn_on_agg(priv, tid, lq_sta, sta);
+                               tid_data =
+                                  &priv->stations[lq_sta->lq.sta_id].tid[tid];
+                               if (tid_data->agg.state == IWL_AGG_OFF) {
+                                       IWL_DEBUG_RATE(priv,
+                                                      "try to aggregate tid %d\n",
+                                                      tid);
+                                       rs_tl_turn_on_agg(priv, tid,
+                                                         lq_sta, sta);
+                               }
                        }
                        lq_sta->action_counter = 0;
                        rs_set_stay_in_table(priv, 0, lq_sta);
@@ -2464,18 +2473,25 @@ static void rs_dbgfs_set_mcs(struct iwl_lq_sta *lq_sta,
                             u32 *rate_n_flags, int index)
 {
        struct iwl_priv *priv;
+       u8 valid_tx_ant;
+       u8 ant_sel_tx;
 
        priv = lq_sta->drv;
+       valid_tx_ant = priv->hw_params.valid_tx_ant;
        if (lq_sta->dbg_fixed_rate) {
-               if (index < 12) {
+               ant_sel_tx =
+                 ((lq_sta->dbg_fixed_rate & RATE_MCS_ANT_ABC_MSK)
+                 >> RATE_MCS_ANT_POS);
+               if ((valid_tx_ant & ant_sel_tx) == ant_sel_tx) {
                        *rate_n_flags = lq_sta->dbg_fixed_rate;
+                       IWL_DEBUG_RATE(priv, "Fixed rate ON\n");
                } else {
-                       if (lq_sta->band == IEEE80211_BAND_5GHZ)
-                               *rate_n_flags = 0x800D;
-                       else
-                               *rate_n_flags = 0x820A;
+                       lq_sta->dbg_fixed_rate = 0;
+                       IWL_ERR(priv,
+                           "Invalid antenna selection 0x%X, Valid is 0x%X\n",
+                           ant_sel_tx, valid_tx_ant);
+                       IWL_DEBUG_RATE(priv, "Fixed rate OFF\n");
                }
-               IWL_DEBUG_RATE(priv, "Fixed rate ON\n");
        } else {
                IWL_DEBUG_RATE(priv, "Fixed rate OFF\n");
        }