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ath9k: improve PS filter clearing and retry counting for A-MPDU 

Do not increment the retry counter if packets to a sleeping station
were not sent because of tx failure, instead of only checking the filter
flag.
Clear the PS filter only after an A-MPDU was reported as filtered,
otherwise the hardware might do some unnecessary extra retransmissions.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2011-10-07 02:28:14 +02:00 committed by John W. Linville
parent 030d629435
commit 26a64259b7
1 changed files with 6 additions and 7 deletions
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13
drivers/net/wireless/ath/ath9k/xmit.c
View File

@ -373,7 +373,6 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
struct ath_frame_info *fi;
int nframes;
u8 tidno;
bool clear_filter;
skb = bf->bf_mpdu;
hdr = (struct ieee80211_hdr *)skb->data;
@ -463,11 +462,9 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
*/
txfail = 1;
} else if (fi->retries < ATH_MAX_SW_RETRIES) {
if (!(ts->ts_status & ATH9K_TXERR_FILT) ||
!an->sleeping)
if (txok || !an->sleeping)
ath_tx_set_retry(sc, txq, bf->bf_mpdu);
clear_filter = true;
txpending = 1;
} else {
txfail = 1;
@ -545,11 +542,13 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
ieee80211_sta_set_buffered(sta, tid->tidno, true);
spin_lock_bh(&txq->axq_lock);
if (clear_filter)
tid->ac->clear_ps_filter = true;
skb_queue_splice(&bf_pending, &tid->buf_q);
if (!an->sleeping)
if (!an->sleeping) {
ath_tx_queue_tid(txq, tid);
if (ts->ts_status & ATH9K_TXERR_FILT)
tid->ac->clear_ps_filter = true;
}
spin_unlock_bh(&txq->axq_lock);
}