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Code Activity

ath9k: fix some hw reset issues

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@28151 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
2011-09-03 03:27:20 +00:00
parent 8cb8af6601
commit a677ddc38d
4 changed files with 61 additions and 53 deletions
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47
package/mac80211/patches/581-ath9k_use_reset_work.patch
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@@ -8,15 +8,7 @@
void ath_hw_check(struct work_struct *work);
void ath_hw_pll_work(struct work_struct *work);
void ath_paprd_calibrate(struct work_struct *work);
@@ -559,6 +560,7 @@ struct ath_ant_comb {
#define SC_OP_RXFLUSH BIT(7)
#define SC_OP_LED_ASSOCIATED BIT(8)
#define SC_OP_LED_ON BIT(9)
+#define SC_OP_HW_RESET BIT(10)
#define SC_OP_TSF_RESET BIT(11)
#define SC_OP_BT_PRIORITY_DETECTED BIT(12)
#define SC_OP_BT_SCAN BIT(13)
@@ -609,6 +611,7 @@ struct ath_softc {
@@ -609,6 +610,7 @@ struct ath_softc {
struct mutex mutex;
struct work_struct paprd_work;
struct work_struct hw_check_work;
@@ -24,7 +16,7 @@
struct completion paprd_complete;
unsigned int hw_busy_count;
@@ -655,7 +658,6 @@ struct ath_softc {
@@ -655,7 +657,6 @@ struct ath_softc {
};
void ath9k_tasklet(unsigned long data);
@@ -151,7 +143,7 @@
return;
}
@@ -968,13 +899,14 @@ void ath_radio_disable(struct ath_softc
@@ -968,7 +899,7 @@ void ath_radio_disable(struct ath_softc
ath9k_ps_restore(sc);
}
@@ -160,14 +152,7 @@
{
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ieee80211_hw *hw = sc->hw;
int r;
+ sc->sc_flags &= ~SC_OP_HW_RESET;
sc->hw_busy_count = 0;
/* Stop ANI */
@@ -1035,6 +967,84 @@ int ath_reset(struct ath_softc *sc, bool
@@ -1035,6 +966,84 @@ int ath_reset(struct ath_softc *sc, bool
return r;
}
@@ -252,7 +237,7 @@
/**********************/
/* mac80211 callbacks */
/**********************/
@@ -1227,6 +1237,7 @@ static void ath9k_stop(struct ieee80211_
@@ -1227,6 +1236,7 @@ static void ath9k_stop(struct ieee80211_
cancel_delayed_work_sync(&sc->hw_pll_work);
cancel_work_sync(&sc->paprd_work);
cancel_work_sync(&sc->hw_check_work);
@@ -262,39 +247,35 @@
ath_dbg(common, ATH_DBG_ANY, "Device not present\n");
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -603,8 +603,10 @@ static void ath_tx_complete_aggr(struct
@@ -604,7 +604,7 @@ static void ath_tx_complete_aggr(struct
rcu_read_unlock();
- if (needreset)
if (needreset)
- ath_reset(sc, false);
+ if (needreset) {
+ sc->sc_flags |= SC_OP_HW_RESET;
+ ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
+ }
}
static bool ath_lookup_legacy(struct ath_buf *bf)
@@ -1357,7 +1359,7 @@ void ath_txq_schedule(struct ath_softc *
@@ -1357,7 +1357,7 @@ void ath_txq_schedule(struct ath_softc *
struct ath_atx_ac *ac, *ac_tmp, *last_ac;
struct ath_atx_tid *tid, *last_tid;
- if (list_empty(&txq->axq_acq) ||
+ if ((sc->sc_flags & SC_OP_HW_RESET) || list_empty(&txq->axq_acq) ||
+ if (work_pending(&sc->hw_reset_work) || list_empty(&txq->axq_acq) ||
txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH)
return;
@@ -2184,6 +2186,9 @@ static void ath_tx_processq(struct ath_s
@@ -2184,6 +2184,9 @@ static void ath_tx_processq(struct ath_s
spin_lock_bh(&txq->axq_lock);
for (;;) {
+ if (sc->sc_flags & SC_OP_HW_RESET)
+ if (work_pending(&sc->hw_reset_work))
+ break;
+
if (list_empty(&txq->axq_q)) {
txq->axq_link = NULL;
if (sc->sc_flags & SC_OP_TXAGGR)
@@ -2271,9 +2276,7 @@ static void ath_tx_complete_poll_work(st
@@ -2271,9 +2274,7 @@ static void ath_tx_complete_poll_work(st
if (needreset) {
ath_dbg(ath9k_hw_common(sc->sc_ah), ATH_DBG_RESET,
"tx hung, resetting the chip\n");
@@ -305,11 +286,11 @@
}
ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work,
@@ -2306,6 +2309,9 @@ void ath_tx_edma_tasklet(struct ath_soft
@@ -2306,6 +2307,9 @@ void ath_tx_edma_tasklet(struct ath_soft
int status;
for (;;) {
+ if (sc->sc_flags & SC_OP_HW_RESET)
+ if (work_pending(&sc->hw_reset_work))
+ break;
+
status = ath9k_hw_txprocdesc(ah, NULL, (void *)&ts);