From 97ba515a201bc61c7d36c41ad728b0a7debd5d88 Mon Sep 17 00:00:00 2001 From: Sujith Manoharan Date: Mon, 4 Jun 2012 16:27:41 +0530 Subject: ath9k: Add MCI interrupt to debugfs statistics Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/debug.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/net/wireless/ath/ath9k/debug.c') diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index fde700c4e49..c134ddaa10a 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -374,6 +374,8 @@ void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status) sc->debug.stats.istats.dtim++; if (status & ATH9K_INT_TSFOOR) sc->debug.stats.istats.tsfoor++; + if (status & ATH9K_INT_MCI) + sc->debug.stats.istats.mci++; } static ssize_t read_file_interrupt(struct file *file, char __user *user_buf, @@ -418,6 +420,7 @@ static ssize_t read_file_interrupt(struct file *file, char __user *user_buf, PR_IS("DTIMSYNC", dtimsync); PR_IS("DTIM", dtim); PR_IS("TSFOOR", tsfoor); + PR_IS("MCI", mci); PR_IS("TOTAL", total); len += snprintf(buf + len, mxlen - len, -- cgit v1.2.3-70-g09d2 From 781b14a3153a722fec820374271316537881076e Mon Sep 17 00:00:00 2001 From: Sujith Manoharan Date: Mon, 4 Jun 2012 20:23:55 +0530 Subject: ath9k: Use atomic operations The 'sc_flags' variable is being used in a number of places with no locking whatsoever. This patch converts the usage of sc_flags to atomic ops. Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ahb.c | 2 +- drivers/net/wireless/ath/ath9k/ath9k.h | 16 +++++++------ drivers/net/wireless/ath/ath9k/beacon.c | 18 +++++++------- drivers/net/wireless/ath/ath9k/debug.c | 6 ++--- drivers/net/wireless/ath/ath9k/link.c | 4 ++-- drivers/net/wireless/ath/ath9k/main.c | 42 ++++++++++++++++----------------- drivers/net/wireless/ath/ath9k/pci.c | 2 +- drivers/net/wireless/ath/ath9k/recv.c | 10 ++++---- drivers/net/wireless/ath/ath9k/xmit.c | 2 +- 9 files changed, 52 insertions(+), 50 deletions(-) (limited to 'drivers/net/wireless/ath/ath9k/debug.c') diff --git a/drivers/net/wireless/ath/ath9k/ahb.c b/drivers/net/wireless/ath/ath9k/ahb.c index 5e47ca6d16a..4a4e8a2b9d2 100644 --- a/drivers/net/wireless/ath/ath9k/ahb.c +++ b/drivers/net/wireless/ath/ath9k/ahb.c @@ -126,7 +126,7 @@ static int ath_ahb_probe(struct platform_device *pdev) sc->irq = irq; /* Will be cleared in ath9k_start() */ - sc->sc_flags |= SC_OP_INVALID; + set_bit(SC_OP_INVALID, &sc->sc_flags); ret = request_irq(irq, ath_isr, IRQF_SHARED, "ath9k", sc); if (ret) { diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 4c2ce453af2..ae43de1cbb0 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -604,12 +604,14 @@ void ath_ant_comb_update(struct ath_softc *sc); #define ATH_TXPOWER_MAX 100 /* .5 dBm units */ #define ATH_RATE_DUMMY_MARKER 0 -#define SC_OP_INVALID BIT(0) -#define SC_OP_BEACONS BIT(1) -#define SC_OP_RXFLUSH BIT(2) -#define SC_OP_TSF_RESET BIT(3) -#define SC_OP_ANI_RUN BIT(4) -#define SC_OP_PRIM_STA_VIF BIT(5) +enum sc_op_flags { + SC_OP_INVALID, + SC_OP_BEACONS, + SC_OP_RXFLUSH, + SC_OP_TSF_RESET, + SC_OP_ANI_RUN, + SC_OP_PRIM_STA_VIF, +}; /* Powersave flags */ #define PS_WAIT_FOR_BEACON BIT(0) @@ -655,9 +657,9 @@ struct ath_softc { struct completion paprd_complete; unsigned int hw_busy_count; + unsigned long sc_flags; u32 intrstatus; - u32 sc_flags; /* SC_OP_* */ u16 ps_flags; /* PS_* */ u16 curtxpow; bool ps_enabled; diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index 70b80252912..40775da8941 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -390,7 +390,7 @@ void ath_beacon_tasklet(unsigned long data) } else if (sc->beacon.bmisscnt >= BSTUCK_THRESH) { ath_dbg(common, BSTUCK, "beacon is officially stuck\n"); sc->beacon.bmisscnt = 0; - sc->sc_flags |= SC_OP_TSF_RESET; + set_bit(SC_OP_TSF_RESET, &sc->sc_flags); ieee80211_queue_work(sc->hw, &sc->hw_reset_work); } @@ -480,16 +480,16 @@ static void ath9k_beacon_init(struct ath_softc *sc, u32 next_beacon, u32 beacon_period) { - if (sc->sc_flags & SC_OP_TSF_RESET) { + if (test_bit(SC_OP_TSF_RESET, &sc->sc_flags)) { ath9k_ps_wakeup(sc); ath9k_hw_reset_tsf(sc->sc_ah); } ath9k_hw_beaconinit(sc->sc_ah, next_beacon, beacon_period); - if (sc->sc_flags & SC_OP_TSF_RESET) { + if (test_bit(SC_OP_TSF_RESET, &sc->sc_flags)) { ath9k_ps_restore(sc); - sc->sc_flags &= ~SC_OP_TSF_RESET; + clear_bit(SC_OP_TSF_RESET, &sc->sc_flags); } } @@ -519,7 +519,7 @@ static void ath_beacon_config_ap(struct ath_softc *sc, /* Set the computed AP beacon timers */ ath9k_hw_disable_interrupts(ah); - sc->sc_flags |= SC_OP_TSF_RESET; + set_bit(SC_OP_TSF_RESET, &sc->sc_flags); ath9k_beacon_init(sc, nexttbtt, intval); sc->beacon.bmisscnt = 0; ath9k_hw_set_interrupts(ah); @@ -662,7 +662,7 @@ static void ath_beacon_config_adhoc(struct ath_softc *sc, u32 tsf, intval, nexttbtt; ath9k_reset_beacon_status(sc); - if (!(sc->sc_flags & SC_OP_BEACONS)) + if (!test_bit(SC_OP_BEACONS, &sc->sc_flags)) ath9k_hw_settsf64(ah, sc->beacon.bc_tstamp); intval = TU_TO_USEC(conf->beacon_interval); @@ -727,7 +727,7 @@ static bool ath9k_allow_beacon_config(struct ath_softc *sc, */ if ((sc->sc_ah->opmode == NL80211_IFTYPE_STATION) && (vif->type == NL80211_IFTYPE_STATION) && - (sc->sc_flags & SC_OP_BEACONS) && + test_bit(SC_OP_BEACONS, &sc->sc_flags) && !avp->primary_sta_vif) { ath_dbg(common, CONFIG, "Beacon already configured for a station interface\n"); @@ -813,7 +813,7 @@ void ath_set_beacon(struct ath_softc *sc) return; } - sc->sc_flags |= SC_OP_BEACONS; + set_bit(SC_OP_BEACONS, &sc->sc_flags); } void ath9k_set_beaconing_status(struct ath_softc *sc, bool status) @@ -821,7 +821,7 @@ void ath9k_set_beaconing_status(struct ath_softc *sc, bool status) struct ath_hw *ah = sc->sc_ah; if (!ath_has_valid_bslot(sc)) { - sc->sc_flags &= ~SC_OP_BEACONS; + clear_bit(SC_OP_BEACONS, &sc->sc_flags); return; } diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index c134ddaa10a..2831258d950 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -205,10 +205,10 @@ static ssize_t write_file_disable_ani(struct file *file, common->disable_ani = !!disable_ani; if (disable_ani) { - sc->sc_flags &= ~SC_OP_ANI_RUN; + clear_bit(SC_OP_ANI_RUN, &sc->sc_flags); del_timer_sync(&common->ani.timer); } else { - sc->sc_flags |= SC_OP_ANI_RUN; + set_bit(SC_OP_ANI_RUN, &sc->sc_flags); ath_start_ani(common); } @@ -1321,7 +1321,7 @@ static int open_file_bb_mac_samps(struct inode *inode, struct file *file) u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask; u8 nread; - if (sc->sc_flags & SC_OP_INVALID) + if (test_bit(SC_OP_INVALID, &sc->sc_flags)) return -EAGAIN; buf = vmalloc(size); diff --git a/drivers/net/wireless/ath/ath9k/link.c b/drivers/net/wireless/ath/ath9k/link.c index 89b38a9ab7c..0cc4c70f7f0 100644 --- a/drivers/net/wireless/ath/ath9k/link.c +++ b/drivers/net/wireless/ath/ath9k/link.c @@ -155,7 +155,7 @@ void ath_start_rx_poll(struct ath_softc *sc, u8 nbeacon) if (!AR_SREV_9300(sc->sc_ah)) return; - if (!(sc->sc_flags & SC_OP_PRIM_STA_VIF)) + if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) return; mod_timer(&sc->rx_poll_timer, jiffies + msecs_to_jiffies @@ -430,7 +430,7 @@ void ath_start_ani(struct ath_common *common) unsigned long timestamp = jiffies_to_msecs(jiffies); struct ath_softc *sc = (struct ath_softc *) common->priv; - if (!(sc->sc_flags & SC_OP_ANI_RUN)) + if (!test_bit(SC_OP_ANI_RUN, &sc->sc_flags)) return; if (sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 66f215ca996..e4f7d0ea5f2 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -222,7 +222,7 @@ static bool ath_complete_reset(struct ath_softc *sc, bool start) ath9k_hw_enable_interrupts(ah); if (!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) && start) { - if (sc->sc_flags & SC_OP_BEACONS) + if (test_bit(SC_OP_BEACONS, &sc->sc_flags)) ath_set_beacon(sc); ath_restart_work(sc); @@ -293,7 +293,7 @@ static int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, { int r; - if (sc->sc_flags & SC_OP_INVALID) + if (test_bit(SC_OP_INVALID, &sc->sc_flags)) return -EIO; r = ath_reset_internal(sc, hchan, false); @@ -435,7 +435,7 @@ irqreturn_t ath_isr(int irq, void *dev) * touch anything. Note this can happen early * on if the IRQ is shared. */ - if (sc->sc_flags & SC_OP_INVALID) + if (test_bit(SC_OP_INVALID, &sc->sc_flags)) return IRQ_NONE; @@ -635,7 +635,7 @@ static int ath9k_start(struct ieee80211_hw *hw) ath_mci_enable(sc); - sc->sc_flags &= ~SC_OP_INVALID; + clear_bit(SC_OP_INVALID, &sc->sc_flags); sc->sc_ah->is_monitoring = false; if (!ath_complete_reset(sc, false)) { @@ -754,7 +754,7 @@ static void ath9k_stop(struct ieee80211_hw *hw) ath_cancel_work(sc); del_timer_sync(&sc->rx_poll_timer); - if (sc->sc_flags & SC_OP_INVALID) { + if (test_bit(SC_OP_INVALID, &sc->sc_flags)) { ath_dbg(common, ANY, "Device not present\n"); mutex_unlock(&sc->mutex); return; @@ -811,7 +811,7 @@ static void ath9k_stop(struct ieee80211_hw *hw) ath9k_ps_restore(sc); - sc->sc_flags |= SC_OP_INVALID; + set_bit(SC_OP_INVALID, &sc->sc_flags); sc->ps_idle = prev_idle; mutex_unlock(&sc->mutex); @@ -915,11 +915,11 @@ static void ath9k_calculate_summary_state(struct ieee80211_hw *hw, /* Set op-mode & TSF */ if (iter_data.naps > 0) { ath9k_hw_set_tsfadjust(ah, 1); - sc->sc_flags |= SC_OP_TSF_RESET; + set_bit(SC_OP_TSF_RESET, &sc->sc_flags); ah->opmode = NL80211_IFTYPE_AP; } else { ath9k_hw_set_tsfadjust(ah, 0); - sc->sc_flags &= ~SC_OP_TSF_RESET; + clear_bit(SC_OP_TSF_RESET, &sc->sc_flags); if (iter_data.nmeshes) ah->opmode = NL80211_IFTYPE_MESH_POINT; @@ -950,12 +950,12 @@ static void ath9k_calculate_summary_state(struct ieee80211_hw *hw, sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER; if (!common->disable_ani) { - sc->sc_flags |= SC_OP_ANI_RUN; + set_bit(SC_OP_ANI_RUN, &sc->sc_flags); ath_start_ani(common); } } else { - sc->sc_flags &= ~SC_OP_ANI_RUN; + clear_bit(SC_OP_ANI_RUN, &sc->sc_flags); del_timer_sync(&common->ani.timer); } } @@ -1479,11 +1479,11 @@ static void ath9k_bss_iter(void *data, u8 *mac, struct ieee80211_vif *vif) * Skip iteration if primary station vif's bss info * was not changed */ - if (sc->sc_flags & SC_OP_PRIM_STA_VIF) + if (test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) return; if (bss_conf->assoc) { - sc->sc_flags |= SC_OP_PRIM_STA_VIF; + set_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags); avp->primary_sta_vif = true; memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN); common->curaid = bss_conf->aid; @@ -1504,7 +1504,7 @@ static void ath9k_bss_iter(void *data, u8 *mac, struct ieee80211_vif *vif) ath_start_rx_poll(sc, 3); if (!common->disable_ani) { - sc->sc_flags |= SC_OP_ANI_RUN; + set_bit(SC_OP_ANI_RUN, &sc->sc_flags); ath_start_ani(common); } @@ -1524,7 +1524,8 @@ static void ath9k_config_bss(struct ath_softc *sc, struct ieee80211_vif *vif) if (avp->primary_sta_vif && !bss_conf->assoc) { ath_dbg(common, CONFIG, "Bss Info DISASSOC %d, bssid %pM\n", common->curaid, common->curbssid); - sc->sc_flags &= ~(SC_OP_PRIM_STA_VIF | SC_OP_BEACONS); + clear_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags); + clear_bit(SC_OP_BEACONS, &sc->sc_flags); avp->primary_sta_vif = false; memset(common->curbssid, 0, ETH_ALEN); common->curaid = 0; @@ -1537,10 +1538,9 @@ static void ath9k_config_bss(struct ath_softc *sc, struct ieee80211_vif *vif) * None of station vifs are associated. * Clear bssid & aid */ - if (!(sc->sc_flags & SC_OP_PRIM_STA_VIF)) { + if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) { ath9k_hw_write_associd(sc->sc_ah); - /* Stop ANI */ - sc->sc_flags &= ~SC_OP_ANI_RUN; + clear_bit(SC_OP_ANI_RUN, &sc->sc_flags); del_timer_sync(&common->ani.timer); del_timer_sync(&sc->rx_poll_timer); memset(&sc->caldata, 0, sizeof(sc->caldata)); @@ -1578,12 +1578,12 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER; if (!common->disable_ani) { - sc->sc_flags |= SC_OP_ANI_RUN; + set_bit(SC_OP_ANI_RUN, &sc->sc_flags); ath_start_ani(common); } } else { - sc->sc_flags &= ~SC_OP_ANI_RUN; + clear_bit(SC_OP_ANI_RUN, &sc->sc_flags); del_timer_sync(&common->ani.timer); del_timer_sync(&sc->rx_poll_timer); } @@ -1595,7 +1595,7 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, */ if ((changed & BSS_CHANGED_BEACON_INT) && (vif->type == NL80211_IFTYPE_AP)) - sc->sc_flags |= SC_OP_TSF_RESET; + set_bit(SC_OP_TSF_RESET, &sc->sc_flags); /* Configure beaconing (AP, IBSS, MESH) */ if (ath9k_uses_beacons(vif->type) && @@ -1787,7 +1787,7 @@ static void ath9k_flush(struct ieee80211_hw *hw, bool drop) return; } - if (sc->sc_flags & SC_OP_INVALID) { + if (test_bit(SC_OP_INVALID, &sc->sc_flags)) { ath_dbg(common, ANY, "Device not present\n"); mutex_unlock(&sc->mutex); return; diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c index 6ec9f88712d..aa0e83ac51f 100644 --- a/drivers/net/wireless/ath/ath9k/pci.c +++ b/drivers/net/wireless/ath/ath9k/pci.c @@ -251,7 +251,7 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) sc->mem = mem; /* Will be cleared in ath9k_start() */ - sc->sc_flags |= SC_OP_INVALID; + set_bit(SC_OP_INVALID, &sc->sc_flags); ret = request_irq(pdev->irq, ath_isr, IRQF_SHARED, "ath9k", sc); if (ret) { diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index c2f5fd1c8b8..b54e15941ba 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -285,8 +285,8 @@ int ath_rx_init(struct ath_softc *sc, int nbufs) int error = 0; spin_lock_init(&sc->sc_pcu_lock); - sc->sc_flags &= ~SC_OP_RXFLUSH; spin_lock_init(&sc->rx.rxbuflock); + clear_bit(SC_OP_RXFLUSH, &sc->sc_flags); common->rx_bufsize = IEEE80211_MAX_MPDU_LEN / 2 + sc->sc_ah->caps.rx_status_len; @@ -498,11 +498,11 @@ bool ath_stoprecv(struct ath_softc *sc) void ath_flushrecv(struct ath_softc *sc) { - sc->sc_flags |= SC_OP_RXFLUSH; + set_bit(SC_OP_RXFLUSH, &sc->sc_flags); 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; + clear_bit(SC_OP_RXFLUSH, &sc->sc_flags); } static bool ath_beacon_dtim_pending_cab(struct sk_buff *skb) @@ -1063,7 +1063,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) do { /* If handling rx interrupt and flush is in progress => exit */ - if ((sc->sc_flags & SC_OP_RXFLUSH) && (flush == 0)) + if (test_bit(SC_OP_RXFLUSH, &sc->sc_flags) && (flush == 0)) break; memset(&rs, 0, sizeof(rs)); @@ -1108,7 +1108,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) * If we're asked to flush receive queue, directly * chain it back at the queue without processing it. */ - if (sc->sc_flags & SC_OP_RXFLUSH) { + if (test_bit(SC_OP_RXFLUSH, &sc->sc_flags)) { RX_STAT_INC(rx_drop_rxflush); goto requeue_drop_frag; } diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 6619a39b8c2..bb74780903d 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1536,7 +1536,7 @@ bool ath_drain_all_txq(struct ath_softc *sc, bool retry_tx) int i; u32 npend = 0; - if (sc->sc_flags & SC_OP_INVALID) + if (test_bit(SC_OP_INVALID, &sc->sc_flags)) return true; ath9k_hw_abort_tx_dma(ah); -- cgit v1.2.3-70-g09d2 From 198823fd002a7f9784648c24c72b7e8c9e73fd14 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Fri, 15 Jun 2012 15:25:25 +0200 Subject: ath9k: remove MIB interrupt support The new ANI implementation does not need it Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ani.c | 40 ---------------------------------- drivers/net/wireless/ath/ath9k/debug.c | 2 -- drivers/net/wireless/ath/ath9k/hw.h | 1 - drivers/net/wireless/ath/ath9k/main.c | 26 ++-------------------- 4 files changed, 2 insertions(+), 67 deletions(-) (limited to 'drivers/net/wireless/ath/ath9k/debug.c') diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c index 7d5367676d4..da73fa2a77d 100644 --- a/drivers/net/wireless/ath/ath9k/ani.c +++ b/drivers/net/wireless/ath/ath9k/ani.c @@ -490,46 +490,6 @@ void ath9k_hw_disable_mib_counters(struct ath_hw *ah) } EXPORT_SYMBOL(ath9k_hw_disable_mib_counters); -/* - * Process a MIB interrupt. We may potentially be invoked because - * any of the MIB counters overflow/trigger so don't assume we're - * here because a PHY error counter triggered. - */ -void ath9k_hw_proc_mib_event(struct ath_hw *ah) -{ - u32 phyCnt1, phyCnt2; - - /* Reset these counters regardless */ - REG_WRITE(ah, AR_FILT_OFDM, 0); - REG_WRITE(ah, AR_FILT_CCK, 0); - if (!(REG_READ(ah, AR_SLP_MIB_CTRL) & AR_SLP_MIB_PENDING)) - REG_WRITE(ah, AR_SLP_MIB_CTRL, AR_SLP_MIB_CLEAR); - - /* Clear the mib counters and save them in the stats */ - ath9k_hw_update_mibstats(ah, &ah->ah_mibStats); - - if (!DO_ANI(ah)) { - /* - * We must always clear the interrupt cause by - * resetting the phy error regs. - */ - REG_WRITE(ah, AR_PHY_ERR_1, 0); - REG_WRITE(ah, AR_PHY_ERR_2, 0); - return; - } - - /* NB: these are not reset-on-read */ - phyCnt1 = REG_READ(ah, AR_PHY_ERR_1); - phyCnt2 = REG_READ(ah, AR_PHY_ERR_2); - if (((phyCnt1 & AR_MIBCNT_INTRMASK) == AR_MIBCNT_INTRMASK) || - ((phyCnt2 & AR_MIBCNT_INTRMASK) == AR_MIBCNT_INTRMASK)) { - - /* NB: always restart to insure the h/w counters are reset */ - ath9k_ani_restart(ah); - } -} -EXPORT_SYMBOL(ath9k_hw_proc_mib_event); - void ath9k_hw_ani_setup(struct ath_hw *ah) { int i; diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index 2831258d950..5c3192ffc19 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -348,8 +348,6 @@ void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status) sc->debug.stats.istats.txok++; if (status & ATH9K_INT_TXURN) sc->debug.stats.istats.txurn++; - if (status & ATH9K_INT_MIB) - sc->debug.stats.istats.mib++; if (status & ATH9K_INT_RXPHY) sc->debug.stats.istats.rxphyerr++; if (status & ATH9K_INT_RXKCM) diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index 111a046b44c..b49e4b48f45 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -1021,7 +1021,6 @@ void ar9003_hw_attach_ops(struct ath_hw *ah); void ar9002_hw_load_ani_reg(struct ath_hw *ah, struct ath9k_channel *chan); void ath9k_ani_reset(struct ath_hw *ah, bool is_scanning); -void ath9k_hw_proc_mib_event(struct ath_hw *ah); void ath9k_hw_ani_monitor(struct ath_hw *ah, struct ath9k_channel *chan); #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 52561b341d6..85f9ab4fa26 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -516,24 +516,6 @@ irqreturn_t ath_isr(int irq, void *dev) ath9k_hw_set_interrupts(ah); } - if (status & ATH9K_INT_MIB) { - /* - * Disable interrupts until we service the MIB - * interrupt; otherwise it will continue to - * fire. - */ - ath9k_hw_disable_interrupts(ah); - /* - * Let the hal handle the event. We assume - * it will clear whatever condition caused - * the interrupt. - */ - spin_lock(&common->cc_lock); - ath9k_hw_proc_mib_event(ah); - spin_unlock(&common->cc_lock); - ath9k_hw_enable_interrupts(ah); - } - if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) if (status & ATH9K_INT_TIM_TIMER) { if (ATH_DBG_WARN_ON_ONCE(sc->ps_idle)) @@ -959,14 +941,10 @@ static void ath9k_calculate_summary_state(struct ieee80211_hw *hw, /* * Enable MIB interrupts when there are hardware phy counters. */ - if ((iter_data.nstations + iter_data.nadhocs + iter_data.nmeshes) > 0) { - if (ah->config.enable_ani) - ah->imask |= ATH9K_INT_MIB; + if ((iter_data.nstations + iter_data.nadhocs + iter_data.nmeshes) > 0) ah->imask |= ATH9K_INT_TSFOOR; - } else { - ah->imask &= ~ATH9K_INT_MIB; + else ah->imask &= ~ATH9K_INT_TSFOOR; - } ath9k_hw_set_interrupts(ah); -- cgit v1.2.3-70-g09d2 From 7702e788e77c175f5ddc8f792468b8af036a8146 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sun, 15 Jul 2012 19:53:35 +0200 Subject: ath9k: make per-WMM-AC queue sizes configurable via debugfs Prepare for using different queue size defaults for each AC. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ath9k.h | 1 + drivers/net/wireless/ath/ath9k/debug.c | 8 ++++++++ drivers/net/wireless/ath/ath9k/init.c | 1 + drivers/net/wireless/ath/ath9k/xmit.c | 6 ++++-- 4 files changed, 14 insertions(+), 2 deletions(-) (limited to 'drivers/net/wireless/ath/ath9k/debug.c') diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 54f0c9d0049..db17ec4f0a8 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -297,6 +297,7 @@ struct ath_tx { struct ath_txq txq[ATH9K_NUM_TX_QUEUES]; struct ath_descdma txdma; struct ath_txq *txq_map[WME_NUM_AC]; + u32 txq_max_pending[WME_NUM_AC]; }; struct ath_rx_edma { diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index 5c3192ffc19..b9ea067a7bb 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -1556,6 +1556,14 @@ int ath9k_init_debug(struct ath_hw *ah) &fops_interrupt); debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy, sc, &fops_xmit); + debugfs_create_u32("qlen_bk", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, + &sc->tx.txq_max_pending[WME_AC_BK]); + debugfs_create_u32("qlen_be", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, + &sc->tx.txq_max_pending[WME_AC_BE]); + debugfs_create_u32("qlen_vi", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, + &sc->tx.txq_max_pending[WME_AC_VI]); + debugfs_create_u32("qlen_vo", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, + &sc->tx.txq_max_pending[WME_AC_VO]); debugfs_create_file("stations", S_IRUSR, sc->debug.debugfs_phy, sc, &fops_stations); debugfs_create_file("misc", S_IRUSR, sc->debug.debugfs_phy, sc, diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index af95d180d7f..181977a414e 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -434,6 +434,7 @@ static int ath9k_init_queues(struct ath_softc *sc) for (i = 0; i < WME_NUM_AC; i++) { sc->tx.txq_map[i] = ath_txq_setup(sc, ATH9K_TX_QUEUE_DATA, i); sc->tx.txq_map[i]->mac80211_qnum = i; + sc->tx.txq_max_pending[i] = ATH_MAX_QDEPTH; } return 0; } diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index cafb4a09729..571d77362b6 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1988,7 +1988,8 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb, ath_txq_lock(sc, txq); if (txq == sc->tx.txq_map[q] && - ++txq->pending_frames > ATH_MAX_QDEPTH && !txq->stopped) { + ++txq->pending_frames > sc->tx.txq_max_pending[q] && + !txq->stopped) { ieee80211_stop_queue(sc->hw, q); txq->stopped = true; } @@ -2047,7 +2048,8 @@ static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb, if (WARN_ON(--txq->pending_frames < 0)) txq->pending_frames = 0; - if (txq->stopped && txq->pending_frames < ATH_MAX_QDEPTH) { + if (txq->stopped && + txq->pending_frames < sc->tx.txq_max_pending[q]) { ieee80211_wake_queue(sc->hw, q); txq->stopped = false; } -- cgit v1.2.3-70-g09d2 From da0d45f7b1dd08ab1ea4f542db797a0c51724281 Mon Sep 17 00:00:00 2001 From: Sujith Manoharan Date: Tue, 17 Jul 2012 17:16:29 +0530 Subject: ath9k: Fix ANI management Currently, there are problems with how ANI is handled in multi-VIF scenarios. This patch addresses them by unifying the start/stop logic. Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ath9k.h | 4 ++- drivers/net/wireless/ath/ath9k/debug.c | 5 ++- drivers/net/wireless/ath/ath9k/link.c | 60 ++++++++++++++++++++++++++++++---- drivers/net/wireless/ath/ath9k/main.c | 29 +++++++--------- 4 files changed, 70 insertions(+), 28 deletions(-) (limited to 'drivers/net/wireless/ath/ath9k/debug.c') diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 41219a5e7f5..c8af0db97c4 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -447,7 +447,9 @@ void ath_rx_poll(unsigned long data); void ath_start_rx_poll(struct ath_softc *sc, u8 nbeacon); void ath_paprd_calibrate(struct work_struct *work); void ath_ani_calibrate(unsigned long data); -void ath_start_ani(struct ath_common *common); +void ath_start_ani(struct ath_softc *sc); +void ath_stop_ani(struct ath_softc *sc); +void ath_check_ani(struct ath_softc *sc); int ath_update_survey_stats(struct ath_softc *sc); void ath_update_survey_nf(struct ath_softc *sc, int channel); diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index b9ea067a7bb..68b643c8943 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -206,10 +206,9 @@ static ssize_t write_file_disable_ani(struct file *file, if (disable_ani) { clear_bit(SC_OP_ANI_RUN, &sc->sc_flags); - del_timer_sync(&common->ani.timer); + ath_stop_ani(sc); } else { - set_bit(SC_OP_ANI_RUN, &sc->sc_flags); - ath_start_ani(common); + ath_check_ani(sc); } return count; diff --git a/drivers/net/wireless/ath/ath9k/link.c b/drivers/net/wireless/ath/ath9k/link.c index 91650fe5046..42fc0a374c6 100644 --- a/drivers/net/wireless/ath/ath9k/link.c +++ b/drivers/net/wireless/ath/ath9k/link.c @@ -432,26 +432,72 @@ set_timer: } } -void ath_start_ani(struct ath_common *common) +void ath_start_ani(struct ath_softc *sc) { - struct ath_hw *ah = common->ah; + struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); unsigned long timestamp = jiffies_to_msecs(jiffies); - struct ath_softc *sc = (struct ath_softc *) common->priv; - - if (!test_bit(SC_OP_ANI_RUN, &sc->sc_flags)) - return; - if (sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) + if (common->disable_ani || + !test_bit(SC_OP_ANI_RUN, &sc->sc_flags) || + (sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) return; common->ani.longcal_timer = timestamp; common->ani.shortcal_timer = timestamp; common->ani.checkani_timer = timestamp; + ath_dbg(common, ANI, "Starting ANI\n"); mod_timer(&common->ani.timer, jiffies + msecs_to_jiffies((u32)ah->config.ani_poll_interval)); } +void ath_stop_ani(struct ath_softc *sc) +{ + struct ath_common *common = ath9k_hw_common(sc->sc_ah); + + ath_dbg(common, ANI, "Stopping ANI\n"); + del_timer_sync(&common->ani.timer); +} + +void ath_check_ani(struct ath_softc *sc) +{ + struct ath_hw *ah = sc->sc_ah; + struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf; + + /* + * Check for the various conditions in which ANI has to + * be stopped. + */ + if (ah->opmode == NL80211_IFTYPE_ADHOC) { + if (!cur_conf->enable_beacon) + goto stop_ani; + } else if (ah->opmode == NL80211_IFTYPE_AP) { + if (!cur_conf->enable_beacon) { + /* + * Disable ANI only when there are no + * associated stations. + */ + if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) + goto stop_ani; + } + } else if (ah->opmode == NL80211_IFTYPE_STATION) { + if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) + goto stop_ani; + } + + if (!test_bit(SC_OP_ANI_RUN, &sc->sc_flags)) { + set_bit(SC_OP_ANI_RUN, &sc->sc_flags); + ath_start_ani(sc); + } + + return; + +stop_ani: + clear_bit(SC_OP_ANI_RUN, &sc->sc_flags); + ath_stop_ani(sc); +} + void ath_update_survey_nf(struct ath_softc *sc, int channel) { struct ath_hw *ah = sc->sc_ah; diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 915bd4881b3..d80d5be2ccb 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -167,8 +167,6 @@ static void ath_cancel_work(struct ath_softc *sc) static void ath_restart_work(struct ath_softc *sc) { - struct ath_common *common = ath9k_hw_common(sc->sc_ah); - ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); if (AR_SREV_9340(sc->sc_ah) || AR_SREV_9485(sc->sc_ah) || @@ -177,21 +175,18 @@ static void ath_restart_work(struct ath_softc *sc) msecs_to_jiffies(ATH_PLL_WORK_INTERVAL)); ath_start_rx_poll(sc, 3); - - if (!common->disable_ani) - ath_start_ani(common); + ath_start_ani(sc); } 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); bool ret = true; ieee80211_stop_queues(sc->hw); sc->hw_busy_count = 0; - del_timer_sync(&common->ani.timer); + ath_stop_ani(sc); del_timer_sync(&sc->rx_poll_timer); ath9k_debug_samp_bb_mac(sc); @@ -1481,6 +1476,11 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_bss_conf *bss_conf, u32 changed) { +#define CHECK_ANI \ + (BSS_CHANGED_ASSOC | \ + BSS_CHANGED_IBSS | \ + BSS_CHANGED_BEACON_ENABLED) + struct ath_softc *sc = hw->priv; struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); @@ -1517,16 +1517,6 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN); common->curaid = bss_conf->aid; ath9k_hw_write_associd(sc->sc_ah); - - if (bss_conf->ibss_joined) { - if (!common->disable_ani) { - set_bit(SC_OP_ANI_RUN, &sc->sc_flags); - ath_start_ani(common); - } - } else { - clear_bit(SC_OP_ANI_RUN, &sc->sc_flags); - del_timer_sync(&common->ani.timer); - } } if ((changed & BSS_CHANGED_BEACON_ENABLED) || @@ -1557,8 +1547,13 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, } } + if (changed & CHECK_ANI) + ath_check_ani(sc); + mutex_unlock(&sc->mutex); ath9k_ps_restore(sc); + +#undef CHECK_ANI } static u64 ath9k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif) -- cgit v1.2.3-70-g09d2