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ath9k: split tid retry packets into a separate queue 

Improves packet retry order and helps with further tx queueing
improvements.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2013-08-06 14:18:03 +02:00 committed by John W. Linville
parent a7586ee441
commit bb195ff61f
2 changed files with 15 additions and 4 deletions
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1
drivers/net/wireless/ath/ath9k/ath9k.h
View File

@ -241,6 +241,7 @@ struct ath_buf {
struct ath_atx_tid {
struct list_head list;
struct sk_buff_head buf_q;
struct sk_buff_head retry_q;
struct ath_node *an;
struct ath_atx_ac *ac;
unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)];

18
drivers/net/wireless/ath/ath9k/xmit.c
View File

@ -170,12 +170,18 @@ static void ath_txq_skb_done(struct ath_softc *sc, struct ath_txq *txq,
static bool ath_tid_has_buffered(struct ath_atx_tid *tid)
{
return !skb_queue_empty(&tid->buf_q);
return !skb_queue_empty(&tid->buf_q) || !skb_queue_empty(&tid->retry_q);
}
static struct sk_buff *ath_tid_dequeue(struct ath_atx_tid *tid)
{
return __skb_dequeue(&tid->buf_q);
struct sk_buff *skb;
skb = __skb_dequeue(&tid->retry_q);
if (!skb)
skb = __skb_dequeue(&tid->buf_q);
return skb;
}
static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
@ -593,7 +599,7 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
if (an->sleeping)
ieee80211_sta_set_buffered(sta, tid->tidno, true);
skb_queue_splice(&bf_pending, &tid->buf_q);
skb_queue_splice_tail(&bf_pending, &tid->retry_q);
if (!an->sleeping) {
ath_tx_queue_tid(txq, tid);
@ -833,7 +839,10 @@ ath_tx_get_tid_subframe(struct ath_softc *sc, struct ath_txq *txq,
u16 seqno;
while (1) {
*q = &tid->buf_q;
*q = &tid->retry_q;
if (skb_queue_empty(*q))
*q = &tid->buf_q;
skb = skb_peek(*q);
if (!skb)
break;
@ -2636,6 +2645,7 @@ void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an)
tid->paused = false;
tid->active = false;
__skb_queue_head_init(&tid->buf_q);
__skb_queue_head_init(&tid->retry_q);
acno = TID_TO_WME_AC(tidno);
tid->ac = &an->ac[acno];
}