From 7197dbac311356b5edc23212d0d4b0b6a09f53ad Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 29 Aug 2011 09:55:16 +0000 Subject: [PATCH] ath9k: fix processing of rx frames on channel change SVN-Revision: 28114 --- .../581-ath9k_merge_reset_functions.patch | 55 +++++++++++++------ .../patches/582-ath9k_antenna_control.patch | 6 +- 2 files changed, 41 insertions(+), 20 deletions(-) diff --git a/package/mac80211/patches/581-ath9k_merge_reset_functions.patch b/package/mac80211/patches/581-ath9k_merge_reset_functions.patch index 3bafcda1d8..f439ced5c1 100644 --- a/package/mac80211/patches/581-ath9k_merge_reset_functions.patch +++ b/package/mac80211/patches/581-ath9k_merge_reset_functions.patch @@ -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); diff --git a/package/mac80211/patches/582-ath9k_antenna_control.patch b/package/mac80211/patches/582-ath9k_antenna_control.patch index ecd86808d7..39e527d3bb 100644 --- a/package/mac80211/patches/582-ath9k_antenna_control.patch +++ b/package/mac80211/patches/582-ath9k_antenna_control.patch @@ -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, -- 2.30.2