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ath9k: improve max rate retry handling

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ath9k currently forces hw->max_rate_tries to 4 to work around rate
control inefficiencies. This has some negative side effects, such as
rate_control_send_low also using a maximum of 4 tries, which could
negatively affect reliability of unicast management frames.
This patch pushes the retry limit to the rate control instead, and
allows it to use more tries on the last stage to prevent unnecessary
packet loss.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau
2010-01-24 03:26:11 +01:00
committed by John W. Linville
parent ff27fabe62
commit 658965107e
2 changed files with 7 additions and 8 deletions
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3
drivers/net/wireless/ath/ath9k/init.c
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@@ -640,8 +640,7 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
hw->max_rates = 4;
hw->channel_change_time = 5000;
hw->max_listen_interval = 10;
/* Hardware supports 10 but we use 4 */
hw->max_rate_tries = 4;
hw->max_rate_tries = 10;
hw->sta_data_size = sizeof(struct ath_node);
hw->vif_data_size = sizeof(struct ath_vif);