diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/ath9k/rc.c | 67 |
1 files changed, 28 insertions, 39 deletions
diff --git a/drivers/net/wireless/ath9k/rc.c b/drivers/net/wireless/ath9k/rc.c index 61c86c4f9fc4..8bc7bb50c7fc 100644 --- a/drivers/net/wireless/ath9k/rc.c +++ b/drivers/net/wireless/ath9k/rc.c @@ -631,8 +631,7 @@ static u8 ath_rc_setvalid_htrates(struct ath_rate_priv *ath_rc_priv, static u8 ath_rc_ratefind_ht(struct ath_softc *sc, struct ath_rate_priv *ath_rc_priv, struct ath_rate_table *rate_table, - int probe_allowed, int *is_probing, - int is_retry) + int *is_probing) { u32 dt, best_thruput, this_thruput, now_msec; u8 rate, next_rate, best_rate, maxindex, minindex; @@ -714,13 +713,6 @@ static u8 ath_rc_ratefind_ht(struct ath_softc *sc, } rate = best_rate; - - /* if we are retrying for more than half the number - * of max retries, use the min rate for the next retry - */ - if (is_retry) - rate = ath_rc_priv->valid_rate_index[minindex]; - ath_rc_priv->rssi_last_lookup = rssi_last; /* @@ -728,13 +720,12 @@ static u8 ath_rc_ratefind_ht(struct ath_softc *sc, * non-monoticity of 11g's rate table */ - if (rate >= ath_rc_priv->rate_max_phy && probe_allowed) { + if (rate >= ath_rc_priv->rate_max_phy) { rate = ath_rc_priv->rate_max_phy; /* Probe the next allowed phy state */ - /* FIXME:XXXX Check to make sure ratMax is checked properly */ if (ath_rc_get_nextvalid_txrate(rate_table, - ath_rc_priv, rate, &next_rate) && + ath_rc_priv, rate, &next_rate) && (now_msec - ath_rc_priv->probe_time > rate_table->probe_interval) && (ath_rc_priv->hw_maxretry_pktcnt >= 1)) { @@ -804,54 +795,54 @@ static u8 ath_rc_rate_getidx(struct ath_softc *sc, static void ath_rc_ratefind(struct ath_softc *sc, struct ath_rate_priv *ath_rc_priv, - int num_tries, int num_rates, - struct ieee80211_tx_info *tx_info, int *is_probe, - int is_retry) + struct ieee80211_tx_rate_control *txrc) { - u8 try_per_rate = 0, i = 0, rix, nrix; struct ath_rate_table *rate_table; + struct sk_buff *skb = txrc->skb; + struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); struct ieee80211_tx_rate *rates = tx_info->control.rates; + u8 try_per_rate = 0, i = 0, rix, nrix; + int is_probe = 0; rate_table = sc->cur_rate_table; - rix = ath_rc_ratefind_ht(sc, ath_rc_priv, rate_table, 1, - is_probe, is_retry); + rix = ath_rc_ratefind_ht(sc, ath_rc_priv, rate_table, &is_probe); nrix = rix; - if (*is_probe) { + if (is_probe) { /* set one try for probe rates. For the * probes don't enable rts */ - ath_rc_rate_set_series(rate_table, - &rates[i++], 1, nrix, 0); + ath_rc_rate_set_series(rate_table, &rates[i++], + 1, nrix, 0); - try_per_rate = (num_tries/num_rates); + try_per_rate = (ATH_11N_TXMAXTRY/4); /* Get the next tried/allowed rate. No RTS for the next series * after the probe rate */ - nrix = ath_rc_rate_getidx(sc, - ath_rc_priv, rate_table, nrix, 1, 0); - ath_rc_rate_set_series(rate_table, - &rates[i++], try_per_rate, nrix, 0); + nrix = ath_rc_rate_getidx(sc, ath_rc_priv, + rate_table, nrix, 1, 0); + ath_rc_rate_set_series(rate_table, &rates[i++], + try_per_rate, nrix, 0); } else { - try_per_rate = (num_tries/num_rates); + try_per_rate = (ATH_11N_TXMAXTRY/4); /* Set the choosen rate. No RTS for first series entry. */ - ath_rc_rate_set_series(rate_table, - &rates[i++], try_per_rate, nrix, 0); + ath_rc_rate_set_series(rate_table, &rates[i++], + try_per_rate, nrix, 0); } /* Fill in the other rates for multirate retry */ - for ( ; i < num_rates; i++) { + for ( ; i < 4; i++) { u8 try_num; u8 min_rate; - try_num = ((i + 1) == num_rates) ? - num_tries - (try_per_rate * i) : try_per_rate ; - min_rate = (((i + 1) == num_rates) && 0); + try_num = ((i + 1) == 4) ? + ATH_11N_TXMAXTRY - (try_per_rate * i) : try_per_rate ; + min_rate = (((i + 1) == 4) && 0); nrix = ath_rc_rate_getidx(sc, ath_rc_priv, rate_table, nrix, 1, min_rate); /* All other rates in the series have RTS enabled */ - ath_rc_rate_set_series(rate_table, - &rates[i], try_num, nrix, 1); + ath_rc_rate_set_series(rate_table, &rates[i], + try_num, nrix, 1); } /* @@ -1503,10 +1494,9 @@ static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta, struct ieee80211_supported_band *sband = txrc->sband; struct sk_buff *skb = txrc->skb; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); struct ath_softc *sc = priv; struct ath_rate_priv *ath_rc_priv = priv_sta; - struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); - int is_probe = 0; __le16 fc = hdr->frame_control; /* lowest rate for management and multicast/broadcast frames */ @@ -1519,8 +1509,7 @@ static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta, } /* Find tx rate for unicast frames */ - ath_rc_ratefind(sc, ath_rc_priv, ATH_11N_TXMAXTRY, 4, - tx_info, &is_probe, false); + ath_rc_ratefind(sc, ath_rc_priv, txrc); } static void ath_rate_init(void *priv, struct ieee80211_supported_band *sband, |