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ath9k: fix processing of rx frames on channel change 

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@28114 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
Felix Fietkau 2011-08-29 09:55:16 +00:00
parent 1354492891
commit 04f4b686c3
2 changed files with 41 additions and 20 deletions
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55
package/mac80211/patches/581-ath9k_merge_reset_functions.patch
View File

@ -1,6 +1,6 @@
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -212,83 +212,39 @@ static int ath_update_survey_stats(struc
@@ -212,83 +212,45 @@ static int ath_update_survey_stats(struc
return ret;
}
@ -11,7 +11,7 @@
-*/
-static int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
- struct ath9k_channel *hchan)
+static bool ath_prepare_reset(struct ath_softc *sc, bool retry_tx)
+static bool ath_prepare_reset(struct ath_softc *sc, bool retry_tx, bool flush)
{
struct ath_hw *ah = sc->sc_ah;
- struct ath_common *common = ath9k_hw_common(ah);
@ -52,15 +52,15 @@
- if (!ath_stoprecv(sc))
- stopped = false;
-
+ ret = ath_drain_all_txq(sc, retry_tx);
- if (!ath9k_hw_check_alive(ah))
- stopped = false;
-
- /* XXX: do not flush receive queue here. We don't want
- * to flush data frames already in queue because of
- * changing channel. */
+ ret = ath_drain_all_txq(sc, retry_tx);
-
- if (!stopped || !(sc->sc_flags & SC_OP_OFFCHANNEL))
- fastcc = false;
+ if (!ath_stoprecv(sc))
@ -68,7 +68,13 @@
- if (!(sc->sc_flags & SC_OP_OFFCHANNEL))
- caldata = &sc->caldata;
+ ath_flushrecv(sc);
+ if (!flush) {
+ if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
+ ath_rx_tasklet(sc, 0, true);
+ ath_rx_tasklet(sc, 0, false);
+ } else {
+ ath_flushrecv(sc);
+ }
- ath_dbg(common, ATH_DBG_CONFIG,
- "(%u MHz) -> (%u MHz), conf_is_ht40: %d fastcc: %d\n",
@ -98,7 +104,7 @@
}
ath9k_cmn_update_txpow(ah, sc->curtxpow,
@@ -296,21 +252,87 @@ static int ath_set_channel(struct ath_so
@@ -296,21 +258,89 @@ static int ath_set_channel(struct ath_so
ath9k_hw_set_interrupts(ah, ah->imask);
ath9k_hw_enable_interrupts(ah);
@ -127,22 +133,24 @@
+ struct ath_common *common = ath9k_hw_common(ah);
+ struct ath9k_hw_cal_data *caldata = NULL;
+ bool fastcc = true;
+ bool flush = false;
+ int r;
+
+ if (!(sc->sc_flags & SC_OP_OFFCHANNEL)) {
+ fastcc = false;
+ caldata = &sc->caldata;
+ }
+
+ if (!hchan) {
+ fastcc = false;
+ flush = true;
+ hchan = ah->curchan;
+ }
+
+ if (fastcc && !ath9k_hw_check_alive(ah))
+ fastcc = false;
+
+ if (!ath_prepare_reset(sc, retry_tx))
+ if (!ath_prepare_reset(sc, retry_tx, flush))
+ fastcc = false;
+
+ ath_dbg(common, ATH_DBG_CONFIG,
@ -164,7 +172,7 @@
+ return 0;
+}
+
+
+/*
+ * Set/change channels. If the channel is really being changed, it's done
+ * by reseting the chip. To accomplish this we must first cleanup any pending
@ -189,7 +197,7 @@
return r;
}
@@ -893,28 +915,13 @@ static void ath_radio_enable(struct ath_
@@ -893,28 +923,13 @@ static void ath_radio_enable(struct ath_
channel->center_freq, r);
}
@ -219,7 +227,20 @@
spin_unlock_bh(&sc->sc_pcu_lock);
ath9k_ps_restore(sc);
@@ -942,13 +949,7 @@ void ath_radio_disable(struct ath_softc
@@ -927,12 +942,8 @@ void ath_radio_disable(struct ath_softc
int r;
ath9k_ps_wakeup(sc);
- cancel_delayed_work_sync(&sc->hw_pll_work);
-
spin_lock_bh(&sc->sc_pcu_lock);
- ieee80211_stop_queues(hw);
-
/*
* Keep the LED on when the radio is disabled
* during idle unassociated state.
@@ -942,13 +953,7 @@ void ath_radio_disable(struct ath_softc
ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
}
@ -230,11 +251,11 @@
-
- ath_stoprecv(sc); /* turn off frame recv */
- ath_flushrecv(sc); /* flush recv queue */
+ ath_prepare_reset(sc, false);
+ ath_prepare_reset(sc, false, true);
if (!ah->curchan)
ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
@@ -970,48 +971,11 @@ void ath_radio_disable(struct ath_softc
@@ -970,48 +975,11 @@ void ath_radio_disable(struct ath_softc
int ath_reset(struct ath_softc *sc, bool retry_tx)
{
@ -284,7 +305,7 @@
if (retry_tx) {
int i;
@@ -1024,12 +988,6 @@ int ath_reset(struct ath_softc *sc, bool
@@ -1024,12 +992,6 @@ int ath_reset(struct ath_softc *sc, bool
}
}
@ -297,7 +318,7 @@
ath9k_ps_restore(sc);
return r;
@@ -1081,28 +1039,6 @@ static int ath9k_start(struct ieee80211_
@@ -1081,28 +1043,6 @@ static int ath9k_start(struct ieee80211_
goto mutex_unlock;
}
@ -326,7 +347,7 @@
/* Setup our intr mask. */
ah->imask = ATH9K_INT_TX | ATH9K_INT_RXEOL |
ATH9K_INT_RXORN | ATH9K_INT_FATAL |
@@ -1125,12 +1061,14 @@ static int ath9k_start(struct ieee80211_
@@ -1125,12 +1065,14 @@ static int ath9k_start(struct ieee80211_
/* Disable BMISS interrupt when we're not associated */
ah->imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS);

6
package/mac80211/patches/582-ath9k_antenna_control.patch
View File

@ -75,7 +75,7 @@
bool ath9k_uses_beacons(int type);
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -262,6 +262,22 @@ static bool ath_complete_reset(struct at
@@ -268,6 +268,22 @@ static bool ath_complete_reset(struct at
ath_start_ani(common);
}
@ -98,7 +98,7 @@
ieee80211_wake_queues(sc->hw);
return true;
@@ -2360,6 +2376,59 @@ static int ath9k_get_stats(struct ieee80
@@ -2364,6 +2380,59 @@ static int ath9k_get_stats(struct ieee80
return 0;
}
@ -158,7 +158,7 @@
struct ieee80211_ops ath9k_ops = {
.tx = ath9k_tx,
.start = ath9k_start,
@@ -2386,4 +2455,6 @@ struct ieee80211_ops ath9k_ops = {
@@ -2390,4 +2459,6 @@ struct ieee80211_ops ath9k_ops = {
.tx_frames_pending = ath9k_tx_frames_pending,
.tx_last_beacon = ath9k_tx_last_beacon,
.get_stats = ath9k_get_stats,