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Diffstat (limited to 'package/mac80211/patches/530-ath9k_locking_fix.patch')
-rw-r--r--package/mac80211/patches/530-ath9k_locking_fix.patch363
1 files changed, 0 insertions, 363 deletions
diff --git a/package/mac80211/patches/530-ath9k_locking_fix.patch b/package/mac80211/patches/530-ath9k_locking_fix.patch
deleted file mode 100644
index 354b720..0000000
--- a/package/mac80211/patches/530-ath9k_locking_fix.patch
+++ /dev/null
@@ -1,363 +0,0 @@
---- a/drivers/net/wireless/ath/ath9k/ath9k.h
-+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
-@@ -309,7 +309,6 @@ struct ath_rx {
- u8 rxotherant;
- u32 *rxlink;
- unsigned int rxfilter;
-- spinlock_t rxflushlock;
- spinlock_t rxbuflock;
- struct list_head rxbuf;
- struct ath_descdma rxdma;
-@@ -599,9 +598,9 @@ struct ath_softc {
- struct ath_hw *sc_ah;
- void __iomem *mem;
- int irq;
-- spinlock_t sc_resetlock;
- spinlock_t sc_serial_rw;
- spinlock_t sc_pm_lock;
-+ spinlock_t sc_pcu_lock;
- struct mutex mutex;
- struct work_struct paprd_work;
- struct work_struct hw_check_work;
---- a/drivers/net/wireless/ath/ath9k/main.c
-+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -228,6 +228,8 @@ int ath_set_channel(struct ath_softc *sc
-
- ath9k_ps_wakeup(sc);
-
-+ spin_lock_bh(&sc->sc_pcu_lock);
-+
- /*
- * This is only performed if the channel settings have
- * actually changed.
-@@ -239,6 +241,7 @@ int ath_set_channel(struct ath_softc *sc
- */
- ath9k_hw_disable_interrupts(ah);
- ath_drain_all_txq(sc, false);
-+
- stopped = ath_stoprecv(sc);
-
- /* XXX: do not flush receive queue here. We don't want
-@@ -257,18 +260,14 @@ int ath_set_channel(struct ath_softc *sc
- channel->center_freq, conf_is_ht40(conf),
- fastcc);
-
-- spin_lock_bh(&sc->sc_resetlock);
--
- r = ath9k_hw_reset(ah, hchan, caldata, fastcc);
- if (r) {
- ath_print(common, ATH_DBG_FATAL,
- "Unable to reset channel (%u MHz), "
- "reset status %d\n",
- channel->center_freq, r);
-- spin_unlock_bh(&sc->sc_resetlock);
- goto ps_restore;
- }
-- spin_unlock_bh(&sc->sc_resetlock);
-
- if (ath_startrecv(sc) != 0) {
- ath_print(common, ATH_DBG_FATAL,
-@@ -287,6 +286,8 @@ int ath_set_channel(struct ath_softc *sc
- }
-
- ps_restore:
-+ spin_unlock_bh(&sc->sc_pcu_lock);
-+
- ath9k_ps_restore(sc);
- return r;
- }
-@@ -600,6 +601,8 @@ void ath9k_tasklet(unsigned long data)
- return;
- }
-
-+ spin_lock_bh(&sc->sc_pcu_lock);
-+
- if (!ath9k_hw_check_alive(ah))
- ieee80211_queue_work(sc->hw, &sc->hw_check_work);
-
-@@ -610,15 +613,12 @@ void ath9k_tasklet(unsigned long data)
- rxmask = (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
-
- if (status & rxmask) {
-- spin_lock_bh(&sc->rx.rxflushlock);
--
- /* Check for high priority Rx first */
- if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
- (status & ATH9K_INT_RXHP))
- ath_rx_tasklet(sc, 0, true);
-
- ath_rx_tasklet(sc, 0, false);
-- spin_unlock_bh(&sc->rx.rxflushlock);
- }
-
- if (status & ATH9K_INT_TX) {
-@@ -644,6 +644,8 @@ void ath9k_tasklet(unsigned long data)
-
- /* re-enable hardware interrupt */
- ath9k_hw_enable_interrupts(ah);
-+
-+ spin_unlock_bh(&sc->sc_pcu_lock);
- ath9k_ps_restore(sc);
- }
-
-@@ -871,12 +873,13 @@ void ath_radio_enable(struct ath_softc *
- int r;
-
- ath9k_ps_wakeup(sc);
-+ spin_lock_bh(&sc->sc_pcu_lock);
-+
- ath9k_hw_configpcipowersave(ah, 0, 0);
-
- if (!ah->curchan)
- ah->curchan = ath_get_curchannel(sc, sc->hw);
-
-- spin_lock_bh(&sc->sc_resetlock);
- r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
- if (r) {
- ath_print(common, ATH_DBG_FATAL,
-@@ -884,15 +887,14 @@ void ath_radio_enable(struct ath_softc *
- "reset status %d\n",
- channel->center_freq, r);
- }
-- spin_unlock_bh(&sc->sc_resetlock);
-
- ath_update_txpow(sc);
- if (ath_startrecv(sc) != 0) {
- ath_print(common, ATH_DBG_FATAL,
- "Unable to restart recv logic\n");
-+ spin_unlock_bh(&sc->sc_pcu_lock);
- return;
- }
--
- if (sc->sc_flags & SC_OP_BEACONS)
- ath_beacon_config(sc, NULL); /* restart beacons */
-
-@@ -905,6 +907,8 @@ void ath_radio_enable(struct ath_softc *
- ath9k_hw_set_gpio(ah, ah->led_pin, 0);
-
- ieee80211_wake_queues(hw);
-+ spin_unlock_bh(&sc->sc_pcu_lock);
-+
- ath9k_ps_restore(sc);
- }
-
-@@ -915,6 +919,8 @@ void ath_radio_disable(struct ath_softc
- int r;
-
- ath9k_ps_wakeup(sc);
-+ spin_lock_bh(&sc->sc_pcu_lock);
-+
- ieee80211_stop_queues(hw);
-
- /*
-@@ -930,13 +936,13 @@ void ath_radio_disable(struct ath_softc
- ath9k_hw_disable_interrupts(ah);
-
- ath_drain_all_txq(sc, false); /* clear pending tx frames */
-+
- ath_stoprecv(sc); /* turn off frame recv */
- ath_flushrecv(sc); /* flush recv queue */
-
- if (!ah->curchan)
- ah->curchan = ath_get_curchannel(sc, hw);
-
-- spin_lock_bh(&sc->sc_resetlock);
- r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
- if (r) {
- ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL,
-@@ -944,11 +950,14 @@ void ath_radio_disable(struct ath_softc
- "reset status %d\n",
- channel->center_freq, r);
- }
-- spin_unlock_bh(&sc->sc_resetlock);
-
- ath9k_hw_phy_disable(ah);
-+
- ath9k_hw_configpcipowersave(ah, 1, 1);
-+
-+ spin_unlock_bh(&sc->sc_pcu_lock);
- ath9k_ps_restore(sc);
-+
- ath9k_setpower(sc, ATH9K_PM_FULL_SLEEP);
- }
-
-@@ -962,19 +971,20 @@ int ath_reset(struct ath_softc *sc, bool
- /* Stop ANI */
- del_timer_sync(&common->ani.timer);
-
-+ spin_lock_bh(&sc->sc_pcu_lock);
-+
- ieee80211_stop_queues(hw);
-
- ath9k_hw_disable_interrupts(ah);
- ath_drain_all_txq(sc, retry_tx);
-+
- ath_stoprecv(sc);
- ath_flushrecv(sc);
-
-- spin_lock_bh(&sc->sc_resetlock);
- r = ath9k_hw_reset(ah, sc->sc_ah->curchan, ah->caldata, false);
- if (r)
- ath_print(common, ATH_DBG_FATAL,
- "Unable to reset hardware; reset status %d\n", r);
-- spin_unlock_bh(&sc->sc_resetlock);
-
- if (ath_startrecv(sc) != 0)
- ath_print(common, ATH_DBG_FATAL,
-@@ -1004,6 +1014,7 @@ int ath_reset(struct ath_softc *sc, bool
- }
-
- ieee80211_wake_queues(hw);
-+ spin_unlock_bh(&sc->sc_pcu_lock);
-
- /* Start ANI */
- ath_start_ani(common);
-@@ -1142,17 +1153,16 @@ static int ath9k_start(struct ieee80211_
- * be followed by initialization of the appropriate bits
- * and then setup of the interrupt mask.
- */
-- spin_lock_bh(&sc->sc_resetlock);
-+ spin_lock_bh(&sc->sc_pcu_lock);
- r = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
- if (r) {
- ath_print(common, ATH_DBG_FATAL,
- "Unable to reset hardware; reset status %d "
- "(freq %u MHz)\n", r,
- curchan->center_freq);
-- spin_unlock_bh(&sc->sc_resetlock);
-+ spin_unlock_bh(&sc->sc_pcu_lock);
- goto mutex_unlock;
- }
-- spin_unlock_bh(&sc->sc_resetlock);
-
- /*
- * This is needed only to setup initial state
-@@ -1171,8 +1181,10 @@ static int ath9k_start(struct ieee80211_
- ath_print(common, ATH_DBG_FATAL,
- "Unable to start recv logic\n");
- r = -EIO;
-+ spin_unlock_bh(&sc->sc_pcu_lock);
- goto mutex_unlock;
- }
-+ spin_unlock_bh(&sc->sc_pcu_lock);
-
- /* Setup our intr mask. */
- ah->imask = ATH9K_INT_TX | ATH9K_INT_RXEOL |
-@@ -1367,6 +1379,8 @@ static void ath9k_stop(struct ieee80211_
- ath9k_btcoex_timer_pause(sc);
- }
-
-+ spin_lock_bh(&sc->sc_pcu_lock);
-+
- /* make sure h/w will not generate any interrupt
- * before setting the invalid flag. */
- ath9k_hw_disable_interrupts(ah);
-@@ -1381,6 +1395,9 @@ static void ath9k_stop(struct ieee80211_
- /* disable HAL and put h/w to sleep */
- ath9k_hw_disable(ah);
- ath9k_hw_configpcipowersave(ah, 1, 1);
-+
-+ spin_unlock_bh(&sc->sc_pcu_lock);
-+
- ath9k_ps_restore(sc);
-
- /* Finally, put the chip in FULL SLEEP mode */
---- a/drivers/net/wireless/ath/ath9k/recv.c
-+++ b/drivers/net/wireless/ath/ath9k/recv.c
-@@ -297,19 +297,17 @@ static void ath_edma_start_recv(struct a
- ath_rx_addbuffer_edma(sc, ATH9K_RX_QUEUE_LP,
- sc->rx.rx_edma[ATH9K_RX_QUEUE_LP].rx_fifo_hwsize);
-
-- spin_unlock_bh(&sc->rx.rxbuflock);
--
- ath_opmode_init(sc);
-
- ath9k_hw_startpcureceive(sc->sc_ah, (sc->sc_flags & SC_OP_OFFCHANNEL));
-+
-+ spin_unlock_bh(&sc->rx.rxbuflock);
- }
-
- static void ath_edma_stop_recv(struct ath_softc *sc)
- {
-- spin_lock_bh(&sc->rx.rxbuflock);
- ath_rx_remove_buffer(sc, ATH9K_RX_QUEUE_HP);
- ath_rx_remove_buffer(sc, ATH9K_RX_QUEUE_LP);
-- spin_unlock_bh(&sc->rx.rxbuflock);
- }
-
- int ath_rx_init(struct ath_softc *sc, int nbufs)
-@@ -319,7 +317,7 @@ int ath_rx_init(struct ath_softc *sc, in
- struct ath_buf *bf;
- int error = 0;
-
-- spin_lock_init(&sc->rx.rxflushlock);
-+ spin_lock_init(&sc->sc_pcu_lock);
- sc->sc_flags &= ~SC_OP_RXFLUSH;
- spin_lock_init(&sc->rx.rxbuflock);
-
-@@ -506,9 +504,9 @@ int ath_startrecv(struct ath_softc *sc)
- ath9k_hw_rxena(ah);
-
- start_recv:
-- spin_unlock_bh(&sc->rx.rxbuflock);
- ath_opmode_init(sc);
- ath9k_hw_startpcureceive(ah, (sc->sc_flags & SC_OP_OFFCHANNEL));
-+ spin_unlock_bh(&sc->rx.rxbuflock);
-
- return 0;
- }
-@@ -518,6 +516,7 @@ bool ath_stoprecv(struct ath_softc *sc)
- struct ath_hw *ah = sc->sc_ah;
- bool stopped;
-
-+ spin_lock_bh(&sc->rx.rxbuflock);
- ath9k_hw_stoppcurecv(ah);
- ath9k_hw_setrxfilter(ah, 0);
- stopped = ath9k_hw_stopdmarecv(ah);
-@@ -526,19 +525,18 @@ bool ath_stoprecv(struct ath_softc *sc)
- ath_edma_stop_recv(sc);
- else
- sc->rx.rxlink = NULL;
-+ spin_unlock_bh(&sc->rx.rxbuflock);
-
- return stopped;
- }
-
- void ath_flushrecv(struct ath_softc *sc)
- {
-- spin_lock_bh(&sc->rx.rxflushlock);
- sc->sc_flags |= SC_OP_RXFLUSH;
- if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
- ath_rx_tasklet(sc, 1, true);
- ath_rx_tasklet(sc, 1, false);
- sc->sc_flags &= ~SC_OP_RXFLUSH;
-- spin_unlock_bh(&sc->rx.rxflushlock);
- }
-
- static bool ath_beacon_dtim_pending_cab(struct sk_buff *skb)
---- a/drivers/net/wireless/ath/ath9k/init.c
-+++ b/drivers/net/wireless/ath/ath9k/init.c
-@@ -592,7 +592,6 @@ static int ath9k_init_softc(u16 devid, s
- spin_lock_init(&common->cc_lock);
-
- spin_lock_init(&sc->wiphy_lock);
-- spin_lock_init(&sc->sc_resetlock);
- spin_lock_init(&sc->sc_serial_rw);
- spin_lock_init(&sc->sc_pm_lock);
- mutex_init(&sc->mutex);
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -1142,13 +1142,11 @@ void ath_drain_all_txq(struct ath_softc
- ath_print(common, ATH_DBG_FATAL,
- "Failed to stop TX DMA. Resetting hardware!\n");
-
-- spin_lock_bh(&sc->sc_resetlock);
- r = ath9k_hw_reset(ah, sc->sc_ah->curchan, ah->caldata, false);
- if (r)
- ath_print(common, ATH_DBG_FATAL,
- "Unable to reset hardware; reset status %d\n",
- r);
-- spin_unlock_bh(&sc->sc_resetlock);
- }
-
- for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
generated by cgit v1.1 at 2024-11-25 07:25:58 +0000