From 33a840a3ff4cc15b45cf3fb47c772b5a44ecfe5c Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Tue, 31 Jan 2017 11:38:25 +0100 Subject: [PATCH] ath9k: remove the deaf rx path state check patch This needs to be refined and reworked before we can safely leave it enabled by default Signed-off-by: Felix Fietkau --- ...6-ath9k-check-for-deaf-rx-path-state.patch | 100 ------------------ ...ondition-in-enabling-disabling-IRQs.patch} | 12 +-- .../patches/500-ath9k_eeprom_debugfs.patch | 4 +- .../patches/512-ath9k_channelbw_debugfs.patch | 4 +- .../patches/530-ath9k_extra_leds.patch | 18 ++-- .../patches/542-ath9k_debugfs_diag.patch | 6 +- .../patches/548-ath9k_enable_gpio_chip.patch | 2 +- .../549-ath9k_enable_gpio_buttons.patch | 2 +- ...-EEPROM-fields-in-Little-Endian-form.patch | 50 +++++---- .../patches/560-ath9k_ubnt_uap_plus_hsr.patch | 4 +- 10 files changed, 53 insertions(+), 149 deletions(-) delete mode 100644 package/kernel/mac80211/patches/356-ath9k-check-for-deaf-rx-path-state.patch rename package/kernel/mac80211/patches/{357-ath9k-fix-race-condition-in-enabling-disabling-IRQs.patch => 356-ath9k-fix-race-condition-in-enabling-disabling-IRQs.patch} (94%) diff --git a/package/kernel/mac80211/patches/356-ath9k-check-for-deaf-rx-path-state.patch b/package/kernel/mac80211/patches/356-ath9k-check-for-deaf-rx-path-state.patch deleted file mode 100644 index 347d06ec888..00000000000 --- a/package/kernel/mac80211/patches/356-ath9k-check-for-deaf-rx-path-state.patch +++ /dev/null @@ -1,100 +0,0 @@ -From: Felix Fietkau -Date: Wed, 25 Jan 2017 13:00:58 +0100 -Subject: [PATCH] ath9k: check for deaf rx path state - -Various chips occasionally run into a state where the tx path still -appears to be working normally, but the rx path is deaf. - -There is no known register signature to check for this state explicitly, -so use the lack of rx interrupts as an indicator. - -This detection is prone to false positives, since a device could also -simply be in an environment where there are no frames on the air. -However, in this case doing a reset should be harmless since it's -obviously not interrupting any real activity. To avoid confusion, call -the reset counters in this case "Rx path inactive" instead of something -like "Rx path deaf", since it may not be an indication of a real -hardware failure. - -Signed-off-by: Felix Fietkau ---- - ---- a/drivers/net/wireless/ath/ath9k/ath9k.h -+++ b/drivers/net/wireless/ath/ath9k/ath9k.h -@@ -1027,6 +1027,7 @@ struct ath_softc { - - u8 gtt_cnt; - u32 intrstatus; -+ u32 rx_active; - u16 ps_flags; /* PS_* */ - bool ps_enabled; - bool ps_idle; ---- a/drivers/net/wireless/ath/ath9k/debug.c -+++ b/drivers/net/wireless/ath/ath9k/debug.c -@@ -763,6 +763,7 @@ static int read_file_reset(struct seq_fi - [RESET_TYPE_BEACON_STUCK] = "Stuck Beacon", - [RESET_TYPE_MCI] = "MCI Reset", - [RESET_TYPE_CALIBRATION] = "Calibration error", -+ [RESET_TYPE_RX_INACTIVE] = "Rx path inactive", - [RESET_TX_DMA_ERROR] = "Tx DMA stop error", - [RESET_RX_DMA_ERROR] = "Rx DMA stop error", - }; ---- a/drivers/net/wireless/ath/ath9k/debug.h -+++ b/drivers/net/wireless/ath/ath9k/debug.h -@@ -50,6 +50,7 @@ enum ath_reset_type { - RESET_TYPE_BEACON_STUCK, - RESET_TYPE_MCI, - RESET_TYPE_CALIBRATION, -+ RESET_TYPE_RX_INACTIVE, - RESET_TX_DMA_ERROR, - RESET_RX_DMA_ERROR, - __RESET_TYPE_MAX ---- a/drivers/net/wireless/ath/ath9k/link.c -+++ b/drivers/net/wireless/ath/ath9k/link.c -@@ -53,13 +53,27 @@ reset: - - } - -+static bool ath_rx_active_check(struct ath_softc *sc) -+{ -+ if (sc->rx_active) { -+ sc->rx_active = 0; -+ return true; -+ } -+ -+ ath_dbg(ath9k_hw_common(sc->sc_ah), RESET, -+ "rx path inactive, resetting the chip\n"); -+ ath9k_queue_reset(sc, RESET_TYPE_RX_INACTIVE); -+ return false; -+} -+ - void ath_hw_check_work(struct work_struct *work) - { - struct ath_softc *sc = container_of(work, struct ath_softc, - hw_check_work.work); - - if (!ath_hw_check(sc) || -- !ath_tx_complete_check(sc)) -+ !ath_tx_complete_check(sc) || -+ !ath_rx_active_check(sc)) - return; - - ieee80211_queue_delayed_work(sc->hw, &sc->hw_check_work, ---- a/drivers/net/wireless/ath/ath9k/main.c -+++ b/drivers/net/wireless/ath/ath9k/main.c -@@ -269,6 +269,7 @@ static bool ath_complete_reset(struct at - } - - sc->gtt_cnt = 0; -+ sc->rx_active = 1; - - ath9k_hw_set_interrupts(ah); - ath9k_hw_enable_interrupts(ah); -@@ -452,6 +453,7 @@ void ath9k_tasklet(unsigned long data) - ath_rx_tasklet(sc, 0, true); - - ath_rx_tasklet(sc, 0, false); -+ sc->rx_active = 1; - } - - if (status & ATH9K_INT_TX) { diff --git a/package/kernel/mac80211/patches/357-ath9k-fix-race-condition-in-enabling-disabling-IRQs.patch b/package/kernel/mac80211/patches/356-ath9k-fix-race-condition-in-enabling-disabling-IRQs.patch similarity index 94% rename from package/kernel/mac80211/patches/357-ath9k-fix-race-condition-in-enabling-disabling-IRQs.patch rename to package/kernel/mac80211/patches/356-ath9k-fix-race-condition-in-enabling-disabling-IRQs.patch index 3e1b2a1714d..7a41206132d 100644 --- a/package/kernel/mac80211/patches/357-ath9k-fix-race-condition-in-enabling-disabling-IRQs.patch +++ b/package/kernel/mac80211/patches/356-ath9k-fix-race-condition-in-enabling-disabling-IRQs.patch @@ -118,7 +118,7 @@ Signed-off-by: Felix Fietkau --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c -@@ -375,21 +375,20 @@ void ath9k_tasklet(unsigned long data) +@@ -374,21 +374,20 @@ void ath9k_tasklet(unsigned long data) struct ath_common *common = ath9k_hw_common(ah); enum ath_reset_type type; unsigned long flags; @@ -146,7 +146,7 @@ Signed-off-by: Felix Fietkau ath_dbg(common, RESET, "FATAL: Skipping interrupts\n"); goto out; } -@@ -405,11 +404,6 @@ void ath9k_tasklet(unsigned long data) +@@ -404,11 +403,6 @@ void ath9k_tasklet(unsigned long data) type = RESET_TYPE_BB_WATCHDOG; ath9k_queue_reset(sc, type); @@ -158,7 +158,7 @@ Signed-off-by: Felix Fietkau ath_dbg(common, RESET, "BB_WATCHDOG: Skipping interrupts\n"); goto out; -@@ -422,7 +416,6 @@ void ath9k_tasklet(unsigned long data) +@@ -421,7 +415,6 @@ void ath9k_tasklet(unsigned long data) if ((sc->gtt_cnt >= MAX_GTT_CNT) && !ath9k_hw_check_alive(ah)) { type = RESET_TYPE_TX_GTT; ath9k_queue_reset(sc, type); @@ -166,7 +166,7 @@ Signed-off-by: Felix Fietkau ath_dbg(common, RESET, "GTT: Skipping interrupts\n"); goto out; -@@ -480,7 +473,7 @@ void ath9k_tasklet(unsigned long data) +@@ -478,7 +471,7 @@ void ath9k_tasklet(unsigned long data) ath9k_btcoex_handle_interrupt(sc, status); /* re-enable hardware interrupt */ @@ -175,7 +175,7 @@ Signed-off-by: Felix Fietkau out: spin_unlock(&sc->sc_pcu_lock); ath9k_ps_restore(sc); -@@ -544,7 +537,9 @@ irqreturn_t ath_isr(int irq, void *dev) +@@ -542,7 +535,9 @@ irqreturn_t ath_isr(int irq, void *dev) return IRQ_NONE; /* Cache the status */ @@ -186,7 +186,7 @@ Signed-off-by: Felix Fietkau if (status & SCHED_INTR) sched = true; -@@ -590,7 +585,7 @@ chip_reset: +@@ -588,7 +583,7 @@ chip_reset: if (sched) { /* turn off every interrupt */ diff --git a/package/kernel/mac80211/patches/500-ath9k_eeprom_debugfs.patch b/package/kernel/mac80211/patches/500-ath9k_eeprom_debugfs.patch index 73523437d74..f21eed18c3f 100644 --- a/package/kernel/mac80211/patches/500-ath9k_eeprom_debugfs.patch +++ b/package/kernel/mac80211/patches/500-ath9k_eeprom_debugfs.patch @@ -1,6 +1,6 @@ --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c -@@ -1316,6 +1316,53 @@ void ath9k_deinit_debug(struct ath_softc +@@ -1315,6 +1315,53 @@ void ath9k_deinit_debug(struct ath_softc ath9k_cmn_spectral_deinit_debug(&sc->spec_priv); } @@ -54,7 +54,7 @@ int ath9k_init_debug(struct ath_hw *ah) { struct ath_common *common = ath9k_hw_common(ah); -@@ -1335,6 +1382,8 @@ int ath9k_init_debug(struct ath_hw *ah) +@@ -1334,6 +1381,8 @@ int ath9k_init_debug(struct ath_hw *ah) ath9k_tx99_init_debug(sc); ath9k_cmn_spectral_init_debug(&sc->spec_priv, sc->debug.debugfs_phy); diff --git a/package/kernel/mac80211/patches/512-ath9k_channelbw_debugfs.patch b/package/kernel/mac80211/patches/512-ath9k_channelbw_debugfs.patch index d6eb5f1d242..c98072bac9c 100644 --- a/package/kernel/mac80211/patches/512-ath9k_channelbw_debugfs.patch +++ b/package/kernel/mac80211/patches/512-ath9k_channelbw_debugfs.patch @@ -1,6 +1,6 @@ --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c -@@ -1363,6 +1363,52 @@ static const struct file_operations fops +@@ -1362,6 +1362,52 @@ static const struct file_operations fops .owner = THIS_MODULE }; @@ -53,7 +53,7 @@ int ath9k_init_debug(struct ath_hw *ah) { struct ath_common *common = ath9k_hw_common(ah); -@@ -1384,6 +1430,8 @@ int ath9k_init_debug(struct ath_hw *ah) +@@ -1383,6 +1429,8 @@ int ath9k_init_debug(struct ath_hw *ah) debugfs_create_file("eeprom", S_IRUSR, sc->debug.debugfs_phy, sc, &fops_eeprom); diff --git a/package/kernel/mac80211/patches/530-ath9k_extra_leds.patch b/package/kernel/mac80211/patches/530-ath9k_extra_leds.patch index 061288dd876..31b77532b5b 100644 --- a/package/kernel/mac80211/patches/530-ath9k_extra_leds.patch +++ b/package/kernel/mac80211/patches/530-ath9k_extra_leds.patch @@ -24,7 +24,7 @@ struct ath_softc { struct ieee80211_hw *hw; struct device *dev; -@@ -1047,9 +1057,8 @@ struct ath_softc { +@@ -1046,9 +1056,8 @@ struct ath_softc { spinlock_t chan_lock; #ifdef CPTCFG_MAC80211_LEDS @@ -103,8 +103,7 @@ + GFP_KERNEL); + if (!led) + return -ENOMEM; - -- ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, val); ++ + led->gpio = gpio = (struct gpio_led *) (led + 1); + _name = (char *) (led->gpio + 1); + @@ -117,7 +116,8 @@ + ret = ath_add_led(sc, led); + if (unlikely(ret < 0)) + kfree(led); -+ + +- ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, val); + return ret; } @@ -125,11 +125,11 @@ { - if (!sc->led_registered) - return; -- -- ath_led_brightness(&sc->led_cdev, LED_OFF); -- led_classdev_unregister(&sc->led_cdev); + struct ath_led *led; +- ath_led_brightness(&sc->led_cdev, LED_OFF); +- led_classdev_unregister(&sc->led_cdev); +- - ath9k_hw_gpio_free(sc->sc_ah, sc->sc_ah->led_pin); + while (!list_empty(&sc->leds)) { + led = list_first_entry(&sc->leds, struct ath_led, list); @@ -192,7 +192,7 @@ #endif --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c -@@ -1408,6 +1408,61 @@ static const struct file_operations fops +@@ -1407,6 +1407,61 @@ static const struct file_operations fops .llseek = default_llseek, }; @@ -254,7 +254,7 @@ int ath9k_init_debug(struct ath_hw *ah) { -@@ -1432,6 +1487,10 @@ int ath9k_init_debug(struct ath_hw *ah) +@@ -1431,6 +1486,10 @@ int ath9k_init_debug(struct ath_hw *ah) &fops_eeprom); debugfs_create_file("chanbw", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, sc, &fops_chanbw); diff --git a/package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch b/package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch index b301c7b48fe..3e687792da7 100644 --- a/package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch +++ b/package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch @@ -1,6 +1,6 @@ --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c -@@ -1464,6 +1464,50 @@ static const struct file_operations fops +@@ -1463,6 +1463,50 @@ static const struct file_operations fops #endif @@ -51,7 +51,7 @@ int ath9k_init_debug(struct ath_hw *ah) { struct ath_common *common = ath9k_hw_common(ah); -@@ -1491,6 +1535,8 @@ int ath9k_init_debug(struct ath_hw *ah) +@@ -1490,6 +1534,8 @@ int ath9k_init_debug(struct ath_hw *ah) debugfs_create_file("gpio_led", S_IWUSR, sc->debug.debugfs_phy, sc, &fops_gpio_led); #endif @@ -125,7 +125,7 @@ REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV, AR_BTCOEX_WL_LNADIV_FORCE_ON); --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c -@@ -529,6 +529,11 @@ irqreturn_t ath_isr(int irq, void *dev) +@@ -527,6 +527,11 @@ irqreturn_t ath_isr(int irq, void *dev) if (test_bit(ATH_OP_HW_RESET, &common->op_flags)) return IRQ_HANDLED; diff --git a/package/kernel/mac80211/patches/548-ath9k_enable_gpio_chip.patch b/package/kernel/mac80211/patches/548-ath9k_enable_gpio_chip.patch index 0b9b7f3db0b..2900ece9144 100644 --- a/package/kernel/mac80211/patches/548-ath9k_enable_gpio_chip.patch +++ b/package/kernel/mac80211/patches/548-ath9k_enable_gpio_chip.patch @@ -33,7 +33,7 @@ Signed-off-by: Felix Fietkau struct ath_softc { struct ieee80211_hw *hw; struct device *dev; -@@ -1059,6 +1068,9 @@ struct ath_softc { +@@ -1058,6 +1067,9 @@ struct ath_softc { #ifdef CPTCFG_MAC80211_LEDS const char *led_default_trigger; struct list_head leds; diff --git a/package/kernel/mac80211/patches/549-ath9k_enable_gpio_buttons.patch b/package/kernel/mac80211/patches/549-ath9k_enable_gpio_buttons.patch index 0a266999e03..f40bac93c34 100644 --- a/package/kernel/mac80211/patches/549-ath9k_enable_gpio_buttons.patch +++ b/package/kernel/mac80211/patches/549-ath9k_enable_gpio_buttons.patch @@ -10,7 +10,7 @@ Signed-off-by: Felix Fietkau --- --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h -@@ -1070,6 +1070,7 @@ struct ath_softc { +@@ -1069,6 +1069,7 @@ struct ath_softc { struct list_head leds; #ifdef CONFIG_GPIOLIB struct ath9k_gpio_chip *gpiochip; diff --git a/package/kernel/mac80211/patches/556-ath9k-define-all-EEPROM-fields-in-Little-Endian-form.patch b/package/kernel/mac80211/patches/556-ath9k-define-all-EEPROM-fields-in-Little-Endian-form.patch index 292ea8a5586..04714f81692 100644 --- a/package/kernel/mac80211/patches/556-ath9k-define-all-EEPROM-fields-in-Little-Endian-form.patch +++ b/package/kernel/mac80211/patches/556-ath9k-define-all-EEPROM-fields-in-Little-Endian-form.patch @@ -349,6 +349,16 @@ Signed-off-by: Martin Blumenstingl - - integer = swab32(eep->modalHeader.antCtrlCommon); - eep->modalHeader.antCtrlCommon = integer; +- +- for (i = 0; i < AR5416_EEP4K_MAX_CHAINS; i++) { +- integer = swab32(eep->modalHeader.antCtrlChain[i]); +- eep->modalHeader.antCtrlChain[i] = integer; +- } +- +- for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) { +- word = swab16(eep->modalHeader.spurChans[i].spurChan); +- eep->modalHeader.spurChans[i].spurChan = word; +- } + EEPROM_FIELD_SWAB16(eep->baseEepHeader.length); + EEPROM_FIELD_SWAB16(eep->baseEepHeader.checksum); + EEPROM_FIELD_SWAB16(eep->baseEepHeader.version); @@ -358,18 +368,10 @@ Signed-off-by: Martin Blumenstingl + EEPROM_FIELD_SWAB16(eep->baseEepHeader.blueToothOptions); + EEPROM_FIELD_SWAB16(eep->baseEepHeader.deviceCap); + EEPROM_FIELD_SWAB32(eep->modalHeader.antCtrlCommon); - -- for (i = 0; i < AR5416_EEP4K_MAX_CHAINS; i++) { -- integer = swab32(eep->modalHeader.antCtrlChain[i]); -- eep->modalHeader.antCtrlChain[i] = integer; -- } ++ + for (i = 0; i < AR5416_EEP4K_MAX_CHAINS; i++) + EEPROM_FIELD_SWAB32(eep->modalHeader.antCtrlChain[i]); - -- for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) { -- word = swab16(eep->modalHeader.spurChans[i].spurChan); -- eep->modalHeader.spurChans[i].spurChan = word; -- } ++ + for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) + EEPROM_FIELD_SWAB16( + eep->modalHeader.spurChans[i].spurChan); @@ -540,6 +542,16 @@ Signed-off-by: Martin Blumenstingl - - integer = swab32(eep->modalHeader.antCtrlCommon); - eep->modalHeader.antCtrlCommon = integer; +- +- for (i = 0; i < AR9287_MAX_CHAINS; i++) { +- integer = swab32(eep->modalHeader.antCtrlChain[i]); +- eep->modalHeader.antCtrlChain[i] = integer; +- } +- +- for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) { +- word = swab16(eep->modalHeader.spurChans[i].spurChan); +- eep->modalHeader.spurChans[i].spurChan = word; +- } + EEPROM_FIELD_SWAB16(eep->baseEepHeader.length); + EEPROM_FIELD_SWAB16(eep->baseEepHeader.checksum); + EEPROM_FIELD_SWAB16(eep->baseEepHeader.version); @@ -549,18 +561,10 @@ Signed-off-by: Martin Blumenstingl + EEPROM_FIELD_SWAB16(eep->baseEepHeader.blueToothOptions); + EEPROM_FIELD_SWAB16(eep->baseEepHeader.deviceCap); + EEPROM_FIELD_SWAB32(eep->modalHeader.antCtrlCommon); - -- for (i = 0; i < AR9287_MAX_CHAINS; i++) { -- integer = swab32(eep->modalHeader.antCtrlChain[i]); -- eep->modalHeader.antCtrlChain[i] = integer; -- } ++ + for (i = 0; i < AR9287_MAX_CHAINS; i++) + EEPROM_FIELD_SWAB32(eep->modalHeader.antCtrlChain[i]); - -- for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) { -- word = swab16(eep->modalHeader.spurChans[i].spurChan); -- eep->modalHeader.spurChans[i].spurChan = word; -- } ++ + for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) + EEPROM_FIELD_SWAB16( + eep->modalHeader.spurChans[i].spurChan); @@ -712,7 +716,8 @@ Signed-off-by: Martin Blumenstingl if (need_swap) { - u32 integer, j; - u16 word; -- ++ u32 j; + - word = swab16(eep->baseEepHeader.length); - eep->baseEepHeader.length = word; - @@ -733,8 +738,7 @@ Signed-off-by: Martin Blumenstingl - - word = swab16(eep->baseEepHeader.blueToothOptions); - eep->baseEepHeader.blueToothOptions = word; -+ u32 j; - +- - word = swab16(eep->baseEepHeader.deviceCap); - eep->baseEepHeader.deviceCap = word; + EEPROM_FIELD_SWAB16(eep->baseEepHeader.length); diff --git a/package/kernel/mac80211/patches/560-ath9k_ubnt_uap_plus_hsr.patch b/package/kernel/mac80211/patches/560-ath9k_ubnt_uap_plus_hsr.patch index 42038b7cd8a..63335cf29f1 100644 --- a/package/kernel/mac80211/patches/560-ath9k_ubnt_uap_plus_hsr.patch +++ b/package/kernel/mac80211/patches/560-ath9k_ubnt_uap_plus_hsr.patch @@ -343,7 +343,7 @@ u8 ath9k_parse_mpdudensity(u8 mpdudensity) { -@@ -650,6 +652,7 @@ void ath_reset_work(struct work_struct * +@@ -648,6 +650,7 @@ void ath_reset_work(struct work_struct * static int ath9k_start(struct ieee80211_hw *hw) { struct ath_softc *sc = hw->priv; @@ -351,7 +351,7 @@ struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); struct ieee80211_channel *curchan = sc->cur_chan->chandef.chan; -@@ -728,6 +731,11 @@ static int ath9k_start(struct ieee80211_ +@@ -726,6 +729,11 @@ static int ath9k_start(struct ieee80211_ AR_GPIO_OUTPUT_MUX_AS_OUTPUT); }