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authorFelix Fietkau <nbd@openwrt.org>2011-09-25 18:34:54 +0000
committerFelix Fietkau <nbd@openwrt.org>2011-09-25 18:34:54 +0000
commita66d4235605b45ad043257c821e6f6f4815fa76e (patch)
tree6eef118779a5d26c9d74dd3c7406e020c8ab34a0 /package/mac80211/patches/573-ath9k_fix_tx_flush_bar.patch
parentf45bd67de06f308be62b675a8de968043c59f7e2 (diff)
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ath9k: fix some tx aggregation issues - reduces the number of tx dma stop failures
SVN-Revision: 28301
Diffstat (limited to 'package/mac80211/patches/573-ath9k_fix_tx_flush_bar.patch')
-rw-r--r--package/mac80211/patches/573-ath9k_fix_tx_flush_bar.patch51
1 files changed, 51 insertions, 0 deletions
diff --git a/package/mac80211/patches/573-ath9k_fix_tx_flush_bar.patch b/package/mac80211/patches/573-ath9k_fix_tx_flush_bar.patch
new file mode 100644
index 0000000000..c13f93b0fc
--- /dev/null
+++ b/package/mac80211/patches/573-ath9k_fix_tx_flush_bar.patch
@@ -0,0 +1,51 @@
+--- 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)) {