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authorVasanthakumar Thiagarajan <vasanth@atheros.com>2008-11-20 11:51:18 +0530
committerJohn W. Linville <linville@tuxdriver.com>2008-11-26 09:47:40 -0500
commit7ac47010a444d9f4285cf1ae06780633a112489b (patch)
tree1c2e739ceb5ef702efbd02551767d43f7da369ee /drivers/net
parent40fc95d57caf258e20282f6526b695426d65a73a (diff)
ath9k: Dont update rate control for every AMPDU
Update the rate control only with the tx status of first AMPDU of an aggregation. This patch fixes frequent drops in throughput. Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/wireless/ath9k/rc.c3
-rw-r--r--drivers/net/wireless/ath9k/rc.h1
-rw-r--r--drivers/net/wireless/ath9k/xmit.c2
3 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath9k/rc.c b/drivers/net/wireless/ath9k/rc.c
index e118824625b..7d1913d48d3 100644
--- a/drivers/net/wireless/ath9k/rc.c
+++ b/drivers/net/wireless/ath9k/rc.c
@@ -1413,7 +1413,8 @@ static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband,
an = (struct ath_node *)sta->drv_priv;
final_ts_idx = tx_info_priv->tx.ts_rateindex;
- if (!an || !priv_sta || !ieee80211_is_data(fc))
+ if (!an || !priv_sta || !ieee80211_is_data(fc) ||
+ !tx_info_priv->update_rc)
goto exit;
if (tx_info_priv->tx.ts_status & ATH9K_TXERR_FILT)
diff --git a/drivers/net/wireless/ath9k/rc.h b/drivers/net/wireless/ath9k/rc.h
index 297dff96c3a..97c60d12e8a 100644
--- a/drivers/net/wireless/ath9k/rc.h
+++ b/drivers/net/wireless/ath9k/rc.h
@@ -188,6 +188,7 @@ struct ath_tx_info_priv {
struct ath_tx_status tx;
int n_frames;
int n_bad_frames;
+ bool update_rc;
};
#define ATH_TX_INFO_PRIV(tx_info) \
diff --git a/drivers/net/wireless/ath9k/xmit.c b/drivers/net/wireless/ath9k/xmit.c
index 50d4105ee4b..dad81a9df15 100644
--- a/drivers/net/wireless/ath9k/xmit.c
+++ b/drivers/net/wireless/ath9k/xmit.c
@@ -950,6 +950,7 @@ static void ath_tx_rc_status(struct ath_buf *bf, struct ath_desc *ds, int nbad)
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ath_tx_info_priv *tx_info_priv = ATH_TX_INFO_PRIV(tx_info);
+ tx_info_priv->update_rc = false;
if (ds->ds_txstat.ts_status & ATH9K_TXERR_FILT)
tx_info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
@@ -960,6 +961,7 @@ static void ath_tx_rc_status(struct ath_buf *bf, struct ath_desc *ds, int nbad)
sizeof(tx_info_priv->tx));
tx_info_priv->n_frames = bf->bf_nframes;
tx_info_priv->n_bad_frames = nbad;
+ tx_info_priv->update_rc = true;
}
}
}