diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/hw.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/hw.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index a43934fb813..4dddffd7c40 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -1020,7 +1020,7 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah) struct ath_common *common = ath9k_hw_common(ah); struct ieee80211_conf *conf = &common->hw->conf; const struct ath9k_channel *chan = ah->curchan; - int acktimeout, ctstimeout; + int acktimeout, ctstimeout, ack_offset = 0; int slottime; int sifstime; int rx_lat = 0, tx_lat = 0, eifs = 0; @@ -1054,6 +1054,7 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah) tx_lat += 11; sifstime *= 2; + ack_offset = 16; slottime = 13; } else if (IS_CHAN_QUARTER_RATE(chan)) { eifs = 340; @@ -1063,6 +1064,7 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah) tx_lat += 22; sifstime *= 4; + ack_offset = 32; slottime = 21; } else { if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) { @@ -1080,7 +1082,7 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah) } /* As defined by IEEE 802.11-2007 17.3.8.6 */ - acktimeout = slottime + sifstime + 3 * ah->coverage_class; + acktimeout = slottime + sifstime + 3 * ah->coverage_class + ack_offset; ctstimeout = acktimeout; /* @@ -1090,7 +1092,8 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah) * BA frames in some implementations, but it has been found to fix ACK * timeout issues in other cases as well. */ - if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ) { + if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ && + !IS_CHAN_HALF_RATE(chan) && !IS_CHAN_QUARTER_RATE(chan)) { acktimeout += 64 - sifstime - ah->slottime; ctstimeout += 48 - sifstime - ah->slottime; } |