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openwrt-xburst/package/mac80211/patches/573-ath9k_fix_tx_flush_bar.patch
nbd 44d9465e63 ath9k: fix some tx aggregation issues - reduces the number of tx dma stop failures
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@28301 3c298f89-4303-0410-b956-a3cf2f4a3e73
2011-09-25 18:34:54 +00:00

52 lines
1.6 KiB
Diff

--- a/drivers/net/wireless/ath/ath9k/mac.h
+++ b/drivers/net/wireless/ath/ath9k/mac.h
@@ -75,9 +75,10 @@
#define ATH9K_TXERR_XTXOP 0x08
#define ATH9K_TXERR_TIMER_EXPIRED 0x10
#define ATH9K_TX_ACKED 0x20
+#define ATH9K_TX_FLUSH 0x40
#define ATH9K_TXERR_MASK \
(ATH9K_TXERR_XRETRY | ATH9K_TXERR_FILT | ATH9K_TXERR_FIFO | \
- ATH9K_TXERR_XTXOP | ATH9K_TXERR_TIMER_EXPIRED)
+ ATH9K_TXERR_XTXOP | ATH9K_TXERR_TIMER_EXPIRED | ATH9K_TX_FLUSH)
#define ATH9K_TX_BA 0x01
#define ATH9K_TX_PWRMGMT 0x02
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -389,6 +389,7 @@ static void ath_tx_complete_aggr(struct
u8 tidno;
bool clear_filter;
int i, retries;
+ bool flush = !!(ts->ts_status & ATH9K_TX_FLUSH);
skb = bf->bf_mpdu;
hdr = (struct ieee80211_hdr *)skb->data;
@@ -483,6 +484,8 @@ static void ath_tx_complete_aggr(struct
* the un-acked sub-frames
*/
txfail = 1;
+ } else if (flush) {
+ txpending = 1;
} else if (fi->retries < ATH_MAX_SW_RETRIES) {
if (!(ts->ts_status & ATH9K_TXERR_FILT) &&
!an->sleeping)
@@ -543,7 +546,8 @@ static void ath_tx_complete_aggr(struct
ath_tx_complete_buf(sc, bf, txq,
&bf_head,
- ts, 0, 1,
+ ts, 0,
+ !flush,
sta);
break;
}
@@ -1447,6 +1451,7 @@ static void ath_drain_txq_list(struct at
struct ath_tx_status ts;
memset(&ts, 0, sizeof(ts));
+ ts.ts_status = ATH9K_TX_FLUSH;
INIT_LIST_HEAD(&bf_head);
while (!list_empty(list)) {