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ath9k: fix rate control tx status handling for A-MPDU 

Currently the rate control tx status update gets called for every
subframe of an A-MPDU, and ath9k marks the frame with the relevant
status update with an internal flag. This not suitable for rate control
algorithms using the standard mac80211 rate control API, so fix this by
using IEEE80211_TX_STAT_AMPDU for marking the correct frames that
should be processed.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2010-03-01 13:32:11 +01:00 committed by John W. Linville
parent 7c3c76a82f
commit d969847c22
3 changed files with 8 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/net/wireless/ath/ath9k/rc.c
View File

@ -1226,8 +1226,12 @@ static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband,
long_retry = rate->count - 1;
}
if (!priv_sta || !ieee80211_is_data(fc) ||
!(tx_info->pad[0] & ATH_TX_INFO_UPDATE_RC))
if (!priv_sta || !ieee80211_is_data(fc))
return;
/* This packet was aggregated but doesn't carry status info */
if ((tx_info->flags & IEEE80211_TX_CTL_AMPDU) &&
!(tx_info->flags & IEEE80211_TX_STAT_AMPDU))
return;
if (tx_info->flags & IEEE80211_TX_STAT_TX_FILTERED)

1
drivers/net/wireless/ath/ath9k/rc.h
View File

@ -172,7 +172,6 @@ struct ath_rate_priv {
#define ATH_TX_INFO_FRAME_TYPE_INTERNAL (1 << 0)
#define ATH_TX_INFO_FRAME_TYPE_PAUSE (1 << 1)
#define ATH_TX_INFO_UPDATE_RC (1 << 2)
#define ATH_TX_INFO_XRETRY (1 << 3)
#define ATH_TX_INFO_UNDERRUN (1 << 4)

4
drivers/net/wireless/ath/ath9k/xmit.c
View File

@ -1947,10 +1947,10 @@ static void ath_tx_rc_status(struct ath_buf *bf, struct ath_desc *ds,
tx_rateindex = ds->ds_txstat.ts_rateindex;
WARN_ON(tx_rateindex >= hw->max_rates);
if (update_rc)
tx_info->pad[0] |= ATH_TX_INFO_UPDATE_RC;
if (ds->ds_txstat.ts_status & ATH9K_TXERR_FILT)
tx_info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
if ((tx_info->flags & IEEE80211_TX_CTL_AMPDU) && update_rc)
tx_info->flags |= IEEE80211_TX_STAT_AMPDU;
if ((ds->ds_txstat.ts_status & ATH9K_TXERR_FILT) == 0 &&
(bf->bf_flags & ATH9K_TXDESC_NOACK) == 0 && update_rc) {