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mac80211_hwsim: Fix rate control by correctly reporting transmission counts 

Drivers need to report the number of transmission attempts for each rate
as well as to terminate the rate array with -1.  The in-kernel datapath
of hwsim simulates a perfect medium, therefore the driver only needs to
report that the first transmission attempt was sucessfully completed at
the most favorable rate.

Rate control is working again for this driver.  Tested mesh mode with
minstrel.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Javier Cardona 2012-05-01 03:01:28 -07:00 committed by John W. Linville
parent 341352d13d
commit 2a4ffa4c89
1 changed files with 5 additions and 0 deletions
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5
drivers/net/wireless/mac80211_hwsim.c
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@ -746,6 +746,11 @@ static void mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
hwsim_check_sta_magic(txi->control.sta);
ieee80211_tx_info_clear_status(txi);
/* frame was transmitted at most favorable rate at first attempt */
txi->control.rates[0].count = 1;
txi->control.rates[1].idx = -1;
if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
txi->flags |= IEEE80211_TX_STAT_ACK;
ieee80211_tx_status_irqsafe(hw, skb);