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authorFelix Fietkau <nbd@openwrt.org>2011-03-10 13:37:26 +0000
committerFelix Fietkau <nbd@openwrt.org>2011-03-10 13:37:26 +0000
commit34f90988dd1604e1a32003d50e8fc31f247707a3 (patch)
treede08a9a26b498453482689581b20aa1fe49cd9f8 /package/mac80211
parentdeafde5632c37c2a43b761df46b06ababe5f33fa (diff)
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ath9k: improve tx dma fixes based on review feedback
SVN-Revision: 26005
Diffstat (limited to 'package/mac80211')
-rw-r--r--package/mac80211/patches/571-ath9k_fix_dma_stop.patch10
-rw-r--r--package/mac80211/patches/572-ath9k_fix_tx_flush.patch85
-rw-r--r--package/mac80211/patches/573-ath9k_beacon_stop.patch4
3 files changed, 79 insertions, 20 deletions
diff --git a/package/mac80211/patches/571-ath9k_fix_dma_stop.patch b/package/mac80211/patches/571-ath9k_fix_dma_stop.patch
index 698b05bb4d..072e657e2e 100644
--- a/package/mac80211/patches/571-ath9k_fix_dma_stop.patch
+++ b/package/mac80211/patches/571-ath9k_fix_dma_stop.patch
@@ -25,11 +25,11 @@
if (npend)
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
-@@ -143,6 +143,37 @@ bool ath9k_hw_updatetxtriglevel(struct a
+@@ -143,6 +143,33 @@ bool ath9k_hw_updatetxtriglevel(struct a
}
EXPORT_SYMBOL(ath9k_hw_updatetxtriglevel);
-+bool ath9k_hw_abort_tx_dma(struct ath_hw *ah)
++void ath9k_hw_abort_tx_dma(struct ath_hw *ah)
+{
+ int i, q;
+
@@ -47,16 +47,12 @@
+ udelay(5);
+ }
+ }
-+ if (!i)
-+ return false;
+
+ REG_CLR_BIT(ah, AR_PCU_MISC, AR_PCU_FORCE_QUIET_COLL | AR_PCU_CLEAR_VMF);
+ REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_FORCE_CH_IDLE_HIGH);
+ REG_CLR_BIT(ah, AR_D_GBL_IFS_MISC, AR_D_GBL_IFS_MISC_IGNORE_BACKOFF);
+
+ REG_WRITE(ah, AR_Q_TXD, 0);
-+
-+ return true;
+}
+EXPORT_SYMBOL(ath9k_hw_abort_tx_dma);
+
@@ -69,7 +65,7 @@
u32 ath9k_hw_numtxpending(struct ath_hw *ah, u32 q);
bool ath9k_hw_updatetxtriglevel(struct ath_hw *ah, bool bIncTrigLevel);
bool ath9k_hw_stoptxdma(struct ath_hw *ah, u32 q);
-+bool ath9k_hw_abort_tx_dma(struct ath_hw *ah);
++void ath9k_hw_abort_tx_dma(struct ath_hw *ah);
void ath9k_hw_gettxintrtxqs(struct ath_hw *ah, u32 *txqs);
bool ath9k_hw_set_txq_props(struct ath_hw *ah, int q,
const struct ath9k_tx_queue_info *qinfo);
diff --git a/package/mac80211/patches/572-ath9k_fix_tx_flush.patch b/package/mac80211/patches/572-ath9k_fix_tx_flush.patch
index 55d127edfb..ddeeb145bd 100644
--- a/package/mac80211/patches/572-ath9k_fix_tx_flush.patch
+++ b/package/mac80211/patches/572-ath9k_fix_tx_flush.patch
@@ -1,6 +1,6 @@
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -2149,54 +2149,37 @@ static void ath9k_set_coverage_class(str
+@@ -2149,56 +2149,40 @@ static void ath9k_set_coverage_class(str
static void ath9k_flush(struct ieee80211_hw *hw, bool drop)
{
@@ -10,9 +10,10 @@
- struct ath_hw *ah = sc->sc_ah;
- struct ath_common *common = ath9k_hw_common(ah);
- int i, j, npend = 0;
-+ int timeout = 60; /* ms */
++ int timeout = 200; /* ms */
+ int i, j;
++ ath9k_ps_wakeup(sc);
mutex_lock(&sc->mutex);
cancel_delayed_work_sync(&sc->tx_complete_work);
@@ -55,22 +56,84 @@
- txq->txq_flush_inprogress = false;
+ npend += ath9k_has_pending_frames(sc, &sc->tx.txq[i]);
}
-- }
-
-- if (npend) {
-- ath_reset(sc, false);
-- txq->txq_flush_inprogress = false;
++
+ if (!npend)
+ goto out;
+
+ usleep_range(1000, 2000);
}
-+ ath9k_ps_wakeup(sc);
-+ ath_drain_all_txq(sc, false);
-+ ath9k_ps_restore(sc);
-+
+- if (npend) {
++ if (!ath_drain_all_txq(sc, false))
+ ath_reset(sc, false);
+- txq->txq_flush_inprogress = false;
+- }
+
+out:
ieee80211_queue_delayed_work(hw, &sc->tx_complete_work, 0);
mutex_unlock(&sc->mutex);
++ ath9k_ps_restore(sc);
+ }
+
+ struct ieee80211_ops ath9k_ops = {
+--- a/drivers/net/wireless/ath/ath9k/ath9k.h
++++ b/drivers/net/wireless/ath/ath9k/ath9k.h
+@@ -189,7 +189,6 @@ struct ath_txq {
+ u32 axq_ampdu_depth;
+ bool stopped;
+ bool axq_tx_inprogress;
+- bool txq_flush_inprogress;
+ struct list_head axq_acq;
+ struct list_head txq_fifo[ATH_TXFIFO_DEPTH];
+ struct list_head txq_fifo_pending;
+--- a/drivers/net/wireless/ath/ath9k/xmit.c
++++ b/drivers/net/wireless/ath/ath9k/xmit.c
+@@ -2091,8 +2091,7 @@ static void ath_tx_processq(struct ath_s
+ spin_lock_bh(&txq->axq_lock);
+ if (list_empty(&txq->axq_q)) {
+ txq->axq_link = NULL;
+- if (sc->sc_flags & SC_OP_TXAGGR &&
+- !txq->txq_flush_inprogress)
++ if (sc->sc_flags & SC_OP_TXAGGR)
+ ath_txq_schedule(sc, txq);
+ spin_unlock_bh(&txq->axq_lock);
+ break;
+@@ -2173,7 +2172,7 @@ static void ath_tx_processq(struct ath_s
+
+ spin_lock_bh(&txq->axq_lock);
+
+- if (sc->sc_flags & SC_OP_TXAGGR && !txq->txq_flush_inprogress)
++ if (sc->sc_flags & SC_OP_TXAGGR)
+ ath_txq_schedule(sc, txq);
+ spin_unlock_bh(&txq->axq_lock);
+ }
+@@ -2317,18 +2316,17 @@ void ath_tx_edma_tasklet(struct ath_soft
+
+ spin_lock_bh(&txq->axq_lock);
+
+- if (!txq->txq_flush_inprogress) {
+- if (!list_empty(&txq->txq_fifo_pending)) {
+- INIT_LIST_HEAD(&bf_head);
+- bf = list_first_entry(&txq->txq_fifo_pending,
+- struct ath_buf, list);
+- list_cut_position(&bf_head,
+- &txq->txq_fifo_pending,
+- &bf->bf_lastbf->list);
+- ath_tx_txqaddbuf(sc, txq, &bf_head);
+- } else if (sc->sc_flags & SC_OP_TXAGGR)
+- ath_txq_schedule(sc, txq);
+- }
++ if (!list_empty(&txq->txq_fifo_pending)) {
++ INIT_LIST_HEAD(&bf_head);
++ bf = list_first_entry(&txq->txq_fifo_pending,
++ struct ath_buf, list);
++ list_cut_position(&bf_head,
++ &txq->txq_fifo_pending,
++ &bf->bf_lastbf->list);
++ ath_tx_txqaddbuf(sc, txq, &bf_head);
++ } else if (sc->sc_flags & SC_OP_TXAGGR)
++ ath_txq_schedule(sc, txq);
++
+ spin_unlock_bh(&txq->axq_lock);
+ }
}
diff --git a/package/mac80211/patches/573-ath9k_beacon_stop.patch b/package/mac80211/patches/573-ath9k_beacon_stop.patch
index ea79ab151f..7a9f63fc70 100644
--- a/package/mac80211/patches/573-ath9k_beacon_stop.patch
+++ b/package/mac80211/patches/573-ath9k_beacon_stop.patch
@@ -1,6 +1,6 @@
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
-@@ -174,84 +174,30 @@ bool ath9k_hw_abort_tx_dma(struct ath_hw
+@@ -170,84 +170,30 @@ void ath9k_hw_abort_tx_dma(struct ath_hw
}
EXPORT_SYMBOL(ath9k_hw_abort_tx_dma);
@@ -100,7 +100,7 @@
bool ath9k_hw_updatetxtriglevel(struct ath_hw *ah, bool bIncTrigLevel);
-bool ath9k_hw_stoptxdma(struct ath_hw *ah, u32 q);
+bool ath9k_hw_stop_dma_queue(struct ath_hw *ah, u32 q);
- bool ath9k_hw_abort_tx_dma(struct ath_hw *ah);
+ void ath9k_hw_abort_tx_dma(struct ath_hw *ah);
void ath9k_hw_gettxintrtxqs(struct ath_hw *ah, u32 *txqs);
bool ath9k_hw_set_txq_props(struct ath_hw *ah, int q,
--- a/drivers/net/wireless/ath/ath9k/beacon.c