diff options
| author | Felix Fietkau <nbd@openwrt.org> | 2011-12-14 22:08:03 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-12-15 20:46:35 +0100 |
| commit | da647626c7aa854755d32dc8e33d3c58314d2fdb (patch) | |
| tree | 2033276d08a3b3f121402ec1b597e6bcfe52ce05 /drivers/net/wireless/ath/ath9k/xmit.c | |
| parent | mac80211: Fix power save in change interface (diff) | |
| download | linux-da647626c7aa854755d32dc8e33d3c58314d2fdb.tar.xz linux-da647626c7aa854755d32dc8e33d3c58314d2fdb.zip | |
ath9k: change maximum software retransmission handling
Instead of limiting a subframe to 10 A-MPDU software transmission attempts,
count hardware retransmissions as well and raise the limit a bit. That way
there will be fewer software retransmission attempts when traffic suffers
from lots of hardware retransmissions.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/xmit.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/xmit.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 9e65c3198ca7..a46b4e2f045c 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -264,14 +264,17 @@ static void ath_tid_drain(struct ath_softc *sc, struct ath_txq *txq, } static void ath_tx_set_retry(struct ath_softc *sc, struct ath_txq *txq, - struct sk_buff *skb) + struct sk_buff *skb, int count) { struct ath_frame_info *fi = get_frame_info(skb); struct ath_buf *bf = fi->bf; struct ieee80211_hdr *hdr; + int prev = fi->retries; TX_STAT_INC(txq->axq_qnum, a_retries); - if (fi->retries++ > 0) + fi->retries += count; + + if (prev > 0) return; hdr = (struct ieee80211_hdr *)skb->data; @@ -379,6 +382,7 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq, int nframes; u8 tidno; bool flush = !!(ts->ts_status & ATH9K_TX_FLUSH); + int i, retries; skb = bf->bf_mpdu; hdr = (struct ieee80211_hdr *)skb->data; @@ -387,6 +391,10 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq, memcpy(rates, tx_info->control.rates, sizeof(rates)); + retries = ts->ts_longretry + 1; + for (i = 0; i < ts->ts_rateindex; i++) + retries += rates[i].count; + rcu_read_lock(); sta = ieee80211_find_sta_by_ifaddr(hw, hdr->addr1, hdr->addr2); @@ -471,7 +479,8 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq, txpending = 1; } else if (fi->retries < ATH_MAX_SW_RETRIES) { if (txok || !an->sleeping) - ath_tx_set_retry(sc, txq, bf->bf_mpdu); + ath_tx_set_retry(sc, txq, bf->bf_mpdu, + retries); txpending = 1; } else { |