+++ /dev/null
---- a/drivers/net/wireless/ath/ath9k/ath9k.h
-+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
-@@ -429,6 +429,7 @@ void ath9k_set_beaconing_status(struct a
-
- #define ATH_PAPRD_TIMEOUT 100 /* msecs */
-
-+void ath_reset_work(struct work_struct *work);
- 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);
-@@ -609,6 +610,7 @@ struct ath_softc {
- struct mutex mutex;
- struct work_struct paprd_work;
- struct work_struct hw_check_work;
-+ struct work_struct hw_reset_work;
- struct completion paprd_complete;
-
- unsigned int hw_busy_count;
-@@ -655,7 +657,6 @@ struct ath_softc {
- };
-
- void ath9k_tasklet(unsigned long data);
--int ath_reset(struct ath_softc *sc, bool retry_tx);
- int ath_cabq_update(struct ath_softc *);
-
- static inline void ath_read_cachesize(struct ath_common *common, int *csz)
---- a/drivers/net/wireless/ath/ath9k/beacon.c
-+++ b/drivers/net/wireless/ath/ath9k/beacon.c
-@@ -386,9 +386,7 @@ void ath_beacon_tasklet(unsigned long da
- ath_dbg(common, ATH_DBG_BSTUCK,
- "beacon is officially stuck\n");
- sc->sc_flags |= SC_OP_TSF_RESET;
-- spin_lock(&sc->sc_pcu_lock);
-- ath_reset(sc, true);
-- spin_unlock(&sc->sc_pcu_lock);
-+ ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
- }
-
- return;
---- a/drivers/net/wireless/ath/ath9k/init.c
-+++ b/drivers/net/wireless/ath/ath9k/init.c
-@@ -776,6 +776,7 @@ int ath9k_init_device(u16 devid, struct
- goto error_world;
- }
-
-+ INIT_WORK(&sc->hw_reset_work, ath_reset_work);
- INIT_WORK(&sc->hw_check_work, ath_hw_check);
- INIT_WORK(&sc->paprd_work, ath_paprd_calibrate);
- INIT_DELAYED_WORK(&sc->hw_pll_work, ath_hw_pll_work);
---- a/drivers/net/wireless/ath/ath9k/main.c
-+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -236,6 +236,7 @@ static int ath_set_channel(struct ath_so
- del_timer_sync(&common->ani.timer);
- cancel_work_sync(&sc->paprd_work);
- cancel_work_sync(&sc->hw_check_work);
-+ cancel_work_sync(&sc->hw_reset_work);
- cancel_delayed_work_sync(&sc->tx_complete_work);
- cancel_delayed_work_sync(&sc->hw_pll_work);
-
-@@ -595,74 +596,6 @@ static void ath_node_detach(struct ath_s
- ath_tx_node_cleanup(sc, an);
- }
-
--void ath_hw_check(struct work_struct *work)
--{
-- struct ath_softc *sc = container_of(work, struct ath_softc, hw_check_work);
-- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-- unsigned long flags;
-- int busy;
--
-- ath9k_ps_wakeup(sc);
-- if (ath9k_hw_check_alive(sc->sc_ah))
-- goto out;
--
-- spin_lock_irqsave(&common->cc_lock, flags);
-- busy = ath_update_survey_stats(sc);
-- spin_unlock_irqrestore(&common->cc_lock, flags);
--
-- ath_dbg(common, ATH_DBG_RESET, "Possible baseband hang, "
-- "busy=%d (try %d)\n", busy, sc->hw_busy_count + 1);
-- if (busy >= 99) {
-- if (++sc->hw_busy_count >= 3) {
-- spin_lock_bh(&sc->sc_pcu_lock);
-- ath_reset(sc, true);
-- spin_unlock_bh(&sc->sc_pcu_lock);
-- }
-- } else if (busy >= 0)
-- sc->hw_busy_count = 0;
--
--out:
-- ath9k_ps_restore(sc);
--}
--
--static void ath_hw_pll_rx_hang_check(struct ath_softc *sc, u32 pll_sqsum)
--{
-- static int count;
-- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
--
-- if (pll_sqsum >= 0x40000) {
-- count++;
-- if (count == 3) {
-- /* Rx is hung for more than 500ms. Reset it */
-- ath_dbg(common, ATH_DBG_RESET,
-- "Possible RX hang, resetting");
-- spin_lock_bh(&sc->sc_pcu_lock);
-- ath_reset(sc, true);
-- spin_unlock_bh(&sc->sc_pcu_lock);
-- count = 0;
-- }
-- } else
-- count = 0;
--}
--
--void ath_hw_pll_work(struct work_struct *work)
--{
-- struct ath_softc *sc = container_of(work, struct ath_softc,
-- hw_pll_work.work);
-- u32 pll_sqsum;
--
-- if (AR_SREV_9485(sc->sc_ah)) {
--
-- ath9k_ps_wakeup(sc);
-- pll_sqsum = ar9003_get_pll_sqsum_dvc(sc->sc_ah);
-- ath9k_ps_restore(sc);
--
-- ath_hw_pll_rx_hang_check(sc, pll_sqsum);
--
-- ieee80211_queue_delayed_work(sc->hw, &sc->hw_pll_work, HZ/5);
-- }
--}
--
-
- void ath9k_tasklet(unsigned long data)
- {
-@@ -675,9 +608,7 @@ void ath9k_tasklet(unsigned long data)
-
- if ((status & ATH9K_INT_FATAL) ||
- (status & ATH9K_INT_BB_WATCHDOG)) {
-- spin_lock(&sc->sc_pcu_lock);
-- ath_reset(sc, true);
-- spin_unlock(&sc->sc_pcu_lock);
-+ ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
- return;
- }
-
-@@ -968,7 +899,7 @@ void ath_radio_disable(struct ath_softc
- ath9k_ps_restore(sc);
- }
-
--int ath_reset(struct ath_softc *sc, bool retry_tx)
-+static int ath_reset(struct ath_softc *sc, bool retry_tx)
- {
- struct ath_hw *ah = sc->sc_ah;
- struct ath_common *common = ath9k_hw_common(ah);
-@@ -1035,6 +966,84 @@ int ath_reset(struct ath_softc *sc, bool
- return r;
- }
-
-+void ath_reset_work(struct work_struct *work)
-+{
-+ struct ath_softc *sc = container_of(work, struct ath_softc, hw_reset_work);
-+
-+ spin_lock_bh(&sc->sc_pcu_lock);
-+ ath_reset(sc, true);
-+ spin_unlock_bh(&sc->sc_pcu_lock);
-+}
-+
-+void ath_hw_check(struct work_struct *work)
-+{
-+ struct ath_softc *sc = container_of(work, struct ath_softc, hw_check_work);
-+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-+ unsigned long flags;
-+ int busy;
-+
-+ ath9k_ps_wakeup(sc);
-+ if (ath9k_hw_check_alive(sc->sc_ah))
-+ goto out;
-+
-+ spin_lock_irqsave(&common->cc_lock, flags);
-+ busy = ath_update_survey_stats(sc);
-+ spin_unlock_irqrestore(&common->cc_lock, flags);
-+
-+ ath_dbg(common, ATH_DBG_RESET, "Possible baseband hang, "
-+ "busy=%d (try %d)\n", busy, sc->hw_busy_count + 1);
-+ if (busy >= 99) {
-+ if (++sc->hw_busy_count >= 3) {
-+ spin_lock_bh(&sc->sc_pcu_lock);
-+ ath_reset(sc, true);
-+ spin_unlock_bh(&sc->sc_pcu_lock);
-+ }
-+
-+ } else if (busy >= 0)
-+ sc->hw_busy_count = 0;
-+
-+out:
-+ ath9k_ps_restore(sc);
-+}
-+
-+static void ath_hw_pll_rx_hang_check(struct ath_softc *sc, u32 pll_sqsum)
-+{
-+ static int count;
-+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-+
-+ if (pll_sqsum >= 0x40000) {
-+ count++;
-+ if (count == 3) {
-+ /* Rx is hung for more than 500ms. Reset it */
-+ ath_dbg(common, ATH_DBG_RESET,
-+ "Possible RX hang, resetting");
-+ spin_lock_bh(&sc->sc_pcu_lock);
-+ ath_reset(sc, true);
-+ spin_unlock_bh(&sc->sc_pcu_lock);
-+ count = 0;
-+ }
-+ } else
-+ count = 0;
-+}
-+
-+void ath_hw_pll_work(struct work_struct *work)
-+{
-+ struct ath_softc *sc = container_of(work, struct ath_softc,
-+ hw_pll_work.work);
-+ u32 pll_sqsum;
-+
-+ if (AR_SREV_9485(sc->sc_ah)) {
-+
-+ ath9k_ps_wakeup(sc);
-+ pll_sqsum = ar9003_get_pll_sqsum_dvc(sc->sc_ah);
-+ ath9k_ps_restore(sc);
-+
-+ ath_hw_pll_rx_hang_check(sc, pll_sqsum);
-+
-+ ieee80211_queue_delayed_work(sc->hw, &sc->hw_pll_work, HZ/5);
-+ }
-+}
-+
- /**********************/
- /* mac80211 callbacks */
- /**********************/
-@@ -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);
-+ cancel_work_sync(&sc->hw_reset_work);
-
- if (sc->sc_flags & SC_OP_INVALID) {
- 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
-@@ -604,7 +604,7 @@ static void ath_tx_complete_aggr(struct
- rcu_read_unlock();
-
- if (needreset)
-- ath_reset(sc, false);
-+ ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
- }
-
- static bool ath_lookup_legacy(struct ath_buf *bf)
-@@ -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 (work_pending(&sc->hw_reset_work) || list_empty(&txq->axq_acq) ||
- txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH)
- return;
-
-@@ -2184,6 +2184,9 @@ static void ath_tx_processq(struct ath_s
-
- spin_lock_bh(&txq->axq_lock);
- for (;;) {
-+ 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 +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");
-- spin_lock_bh(&sc->sc_pcu_lock);
-- ath_reset(sc, true);
-- spin_unlock_bh(&sc->sc_pcu_lock);
-+ ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
- }
-
- ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work,
-@@ -2306,6 +2307,9 @@ void ath_tx_edma_tasklet(struct ath_soft
- int status;
-
- for (;;) {
-+ if (work_pending(&sc->hw_reset_work))
-+ break;
-+
- status = ath9k_hw_txprocdesc(ah, NULL, (void *)&ts);
- if (status == -EINPROGRESS)
- break;
projects / openwrt.git / blobdiff