ath5k: Add tx queue configuration function

Add the mac80211 callback function to configure the tx queue properties like
cw_min, cw_max and aifs.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 39 insertions, 1 deletions

diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 6bd8dd6f327b..504c6d648ecf 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -3140,6 +3140,44 @@ static void ath5k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
         mutex_unlock(&sc->lock);
 }
 
+static int ath5k_conf_tx(struct ieee80211_hw *hw, u16 queue,
+                         const struct ieee80211_tx_queue_params *params)
+{
+        struct ath5k_softc *sc = hw->priv;
+        struct ath5k_hw *ah = sc->ah;
+        struct ath5k_txq_info qi;
+        int ret = 0;
+
+        if (queue >= ah->ah_capabilities.cap_queues.q_tx_num)
+                return 0;
+
+        mutex_lock(&sc->lock);
+
+        ath5k_hw_get_tx_queueprops(ah, queue, &qi);
+
+        qi.tqi_aifs = params->aifs;
+        qi.tqi_cw_min = params->cw_min;
+        qi.tqi_cw_max = params->cw_max;
+        qi.tqi_burst_time = params->txop;
+
+        ATH5K_DBG(sc, ATH5K_DEBUG_ANY,
+                  "Configure tx [queue %d],  "
+                  "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
+                  queue, params->aifs, params->cw_min,
+                  params->cw_max, params->txop);
+
+        if (ath5k_hw_set_tx_queueprops(ah, queue, &qi)) {
+                ATH5K_ERR(sc,
+                          "Unable to update hardware queue %u!\n", queue);
+                ret = -EIO;
+        } else
+                ath5k_hw_reset_tx_queue(ah, queue);
+
+        mutex_unlock(&sc->lock);
+
+        return ret;
+}
+
 static const struct ieee80211_ops ath5k_hw_ops = {
         .tx             = ath5k_tx,
         .start          = ath5k_start,
@@ -3152,7 +3190,7 @@ static const struct ieee80211_ops ath5k_hw_ops = {
         .set_key        = ath5k_set_key,
         .get_stats      = ath5k_get_stats,
         .get_survey     = ath5k_get_survey,
-        .conf_tx        = NULL,
+        .conf_tx        = ath5k_conf_tx,
         .get_tsf        = ath5k_get_tsf,
         .set_tsf        = ath5k_set_tsf,
         .reset_tsf      = ath5k_reset_tsf,