2013-12-19 17:02:00

by Felix Fietkau

[permalink] [raw]
Subject: [PATCH 1/4] ath9k: move ath9k_debug_sync_cause out of ath9k_hw

ath9k_hw should not depend on any ath9k data structures like ath_softc

Signed-off-by: Felix Fietkau <[email protected]>
---
drivers/net/wireless/ath/ath9k/ar9002_mac.c | 6 +++--
drivers/net/wireless/ath/ath9k/ar9003_mac.c | 6 +++--
drivers/net/wireless/ath/ath9k/debug.c | 41 ++++++++++++++++++++++++++++
drivers/net/wireless/ath/ath9k/debug.h | 7 +++++
drivers/net/wireless/ath/ath9k/hw-ops.h | 5 ++--
drivers/net/wireless/ath/ath9k/hw.c | 42 -----------------------------
drivers/net/wireless/ath/ath9k/hw.h | 10 ++-----
drivers/net/wireless/ath/ath9k/main.c | 4 ++-
8 files changed, 64 insertions(+), 57 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar9002_mac.c b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
index a366d6b..741b38d 100644
--- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
@@ -29,7 +29,8 @@ static void ar9002_hw_set_desc_link(void *ds, u32 ds_link)
((struct ath_desc*) ds)->ds_link = ds_link;
}

-static bool ar9002_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
+static bool ar9002_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked,
+ u32 *sync_cause_p)
{
u32 isr = 0;
u32 mask2 = 0;
@@ -170,7 +171,8 @@ static bool ar9002_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
return true;

if (sync_cause) {
- ath9k_debug_sync_cause(common, sync_cause);
+ if (sync_cause_p)
+ *sync_cause_p = sync_cause;
fatal_int =
(sync_cause &
(AR_INTR_SYNC_HOST1_FATAL | AR_INTR_SYNC_HOST1_PERR))
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
index 6eb8657..729ffbf 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
@@ -175,7 +175,8 @@ static void ar9003_hw_set_desc_link(void *ds, u32 ds_link)
ads->ctl10 |= ar9003_calc_ptr_chksum(ads);
}

-static bool ar9003_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
+static bool ar9003_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked,
+ u32 *sync_cause_p)
{
u32 isr = 0;
u32 mask2 = 0;
@@ -310,7 +311,8 @@ static bool ar9003_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
ar9003_mci_get_isr(ah, masked);

if (sync_cause) {
- ath9k_debug_sync_cause(common, sync_cause);
+ if (sync_cause_p)
+ *sync_cause_p = sync_cause;
fatal_int =
(sync_cause &
(AR_INTR_SYNC_HOST1_FATAL | AR_INTR_SYNC_HOST1_PERR))
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index 4c6f8b1..b041052 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -26,6 +26,47 @@
#define REG_READ_D(_ah, _reg) \
ath9k_hw_common(_ah)->ops->read((_ah), (_reg))

+void ath9k_debug_sync_cause(struct ath_softc *sc, u32 sync_cause)
+{
+ if (sync_cause)
+ sc->debug.stats.istats.sync_cause_all++;
+ if (sync_cause & AR_INTR_SYNC_RTC_IRQ)
+ sc->debug.stats.istats.sync_rtc_irq++;
+ if (sync_cause & AR_INTR_SYNC_MAC_IRQ)
+ sc->debug.stats.istats.sync_mac_irq++;
+ if (sync_cause & AR_INTR_SYNC_EEPROM_ILLEGAL_ACCESS)
+ sc->debug.stats.istats.eeprom_illegal_access++;
+ if (sync_cause & AR_INTR_SYNC_APB_TIMEOUT)
+ sc->debug.stats.istats.apb_timeout++;
+ if (sync_cause & AR_INTR_SYNC_PCI_MODE_CONFLICT)
+ sc->debug.stats.istats.pci_mode_conflict++;
+ if (sync_cause & AR_INTR_SYNC_HOST1_FATAL)
+ sc->debug.stats.istats.host1_fatal++;
+ if (sync_cause & AR_INTR_SYNC_HOST1_PERR)
+ sc->debug.stats.istats.host1_perr++;
+ if (sync_cause & AR_INTR_SYNC_TRCV_FIFO_PERR)
+ sc->debug.stats.istats.trcv_fifo_perr++;
+ if (sync_cause & AR_INTR_SYNC_RADM_CPL_EP)
+ sc->debug.stats.istats.radm_cpl_ep++;
+ if (sync_cause & AR_INTR_SYNC_RADM_CPL_DLLP_ABORT)
+ sc->debug.stats.istats.radm_cpl_dllp_abort++;
+ if (sync_cause & AR_INTR_SYNC_RADM_CPL_TLP_ABORT)
+ sc->debug.stats.istats.radm_cpl_tlp_abort++;
+ if (sync_cause & AR_INTR_SYNC_RADM_CPL_ECRC_ERR)
+ sc->debug.stats.istats.radm_cpl_ecrc_err++;
+ if (sync_cause & AR_INTR_SYNC_RADM_CPL_TIMEOUT)
+ sc->debug.stats.istats.radm_cpl_timeout++;
+ if (sync_cause & AR_INTR_SYNC_LOCAL_TIMEOUT)
+ sc->debug.stats.istats.local_timeout++;
+ if (sync_cause & AR_INTR_SYNC_PM_ACCESS)
+ sc->debug.stats.istats.pm_access++;
+ if (sync_cause & AR_INTR_SYNC_MAC_AWAKE)
+ sc->debug.stats.istats.mac_awake++;
+ if (sync_cause & AR_INTR_SYNC_MAC_ASLEEP)
+ sc->debug.stats.istats.mac_asleep++;
+ if (sync_cause & AR_INTR_SYNC_MAC_SLEEP_ACCESS)
+ sc->debug.stats.istats.mac_sleep_access++;
+}

static ssize_t ath9k_debugfs_read_buf(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h
index 4f596dd..ec02d38 100644
--- a/drivers/net/wireless/ath/ath9k/debug.h
+++ b/drivers/net/wireless/ath/ath9k/debug.h
@@ -295,6 +295,8 @@ void ath9k_sta_add_debugfs(struct ieee80211_hw *hw,
void ath9k_debug_stat_ant(struct ath_softc *sc,
struct ath_hw_antcomb_conf *div_ant_conf,
int main_rssi_avg, int alt_rssi_avg);
+void ath9k_debug_sync_cause(struct ath_softc *sc, u32 sync_cause);
+
#else

#define RX_STAT_INC(c) /* NOP */
@@ -329,6 +331,11 @@ static inline void ath9k_debug_stat_ant(struct ath_softc *sc,

}

+static inline void
+ath9k_debug_sync_cause(struct ath_softc *sc, u32 sync_cause)
+{
+}
+
#endif /* CONFIG_ATH9K_DEBUGFS */

#endif /* DEBUG_H */
diff --git a/drivers/net/wireless/ath/ath9k/hw-ops.h b/drivers/net/wireless/ath/ath9k/hw-ops.h
index 4f9378d..cc58a8e 100644
--- a/drivers/net/wireless/ath/ath9k/hw-ops.h
+++ b/drivers/net/wireless/ath/ath9k/hw-ops.h
@@ -49,9 +49,10 @@ static inline bool ath9k_hw_calibrate(struct ath_hw *ah,
return ath9k_hw_ops(ah)->calibrate(ah, chan, rxchainmask, longcal);
}

-static inline bool ath9k_hw_getisr(struct ath_hw *ah, enum ath9k_int *masked)
+static inline bool ath9k_hw_getisr(struct ath_hw *ah, enum ath9k_int *masked,
+ u32 *sync_cause_p)
{
- return ath9k_hw_ops(ah)->get_isr(ah, masked);
+ return ath9k_hw_ops(ah)->get_isr(ah, masked, sync_cause_p);
}

static inline void ath9k_hw_set_txdesc(struct ath_hw *ah, void *ds,
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 0e548a4..a4b1ae0 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -85,48 +85,6 @@ static void ath9k_hw_ani_cache_ini_regs(struct ath_hw *ah)

#ifdef CONFIG_ATH9K_DEBUGFS

-void ath9k_debug_sync_cause(struct ath_common *common, u32 sync_cause)
-{
- struct ath_softc *sc = common->priv;
- if (sync_cause)
- sc->debug.stats.istats.sync_cause_all++;
- if (sync_cause & AR_INTR_SYNC_RTC_IRQ)
- sc->debug.stats.istats.sync_rtc_irq++;
- if (sync_cause & AR_INTR_SYNC_MAC_IRQ)
- sc->debug.stats.istats.sync_mac_irq++;
- if (sync_cause & AR_INTR_SYNC_EEPROM_ILLEGAL_ACCESS)
- sc->debug.stats.istats.eeprom_illegal_access++;
- if (sync_cause & AR_INTR_SYNC_APB_TIMEOUT)
- sc->debug.stats.istats.apb_timeout++;
- if (sync_cause & AR_INTR_SYNC_PCI_MODE_CONFLICT)
- sc->debug.stats.istats.pci_mode_conflict++;
- if (sync_cause & AR_INTR_SYNC_HOST1_FATAL)
- sc->debug.stats.istats.host1_fatal++;
- if (sync_cause & AR_INTR_SYNC_HOST1_PERR)
- sc->debug.stats.istats.host1_perr++;
- if (sync_cause & AR_INTR_SYNC_TRCV_FIFO_PERR)
- sc->debug.stats.istats.trcv_fifo_perr++;
- if (sync_cause & AR_INTR_SYNC_RADM_CPL_EP)
- sc->debug.stats.istats.radm_cpl_ep++;
- if (sync_cause & AR_INTR_SYNC_RADM_CPL_DLLP_ABORT)
- sc->debug.stats.istats.radm_cpl_dllp_abort++;
- if (sync_cause & AR_INTR_SYNC_RADM_CPL_TLP_ABORT)
- sc->debug.stats.istats.radm_cpl_tlp_abort++;
- if (sync_cause & AR_INTR_SYNC_RADM_CPL_ECRC_ERR)
- sc->debug.stats.istats.radm_cpl_ecrc_err++;
- if (sync_cause & AR_INTR_SYNC_RADM_CPL_TIMEOUT)
- sc->debug.stats.istats.radm_cpl_timeout++;
- if (sync_cause & AR_INTR_SYNC_LOCAL_TIMEOUT)
- sc->debug.stats.istats.local_timeout++;
- if (sync_cause & AR_INTR_SYNC_PM_ACCESS)
- sc->debug.stats.istats.pm_access++;
- if (sync_cause & AR_INTR_SYNC_MAC_AWAKE)
- sc->debug.stats.istats.mac_awake++;
- if (sync_cause & AR_INTR_SYNC_MAC_ASLEEP)
- sc->debug.stats.istats.mac_asleep++;
- if (sync_cause & AR_INTR_SYNC_MAC_SLEEP_ACCESS)
- sc->debug.stats.istats.mac_sleep_access++;
-}
#endif


diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 54932d8..6132ffe 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -667,7 +667,8 @@ struct ath_hw_ops {
struct ath9k_channel *chan,
u8 rxchainmask,
bool longcal);
- bool (*get_isr)(struct ath_hw *ah, enum ath9k_int *masked);
+ bool (*get_isr)(struct ath_hw *ah, enum ath9k_int *masked,
+ u32 *sync_cause_p);
void (*set_txdesc)(struct ath_hw *ah, void *ds,
struct ath_tx_info *i);
int (*proc_txdesc)(struct ath_hw *ah, void *ds,
@@ -994,13 +995,6 @@ bool ath9k_hw_check_alive(struct ath_hw *ah);

bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode);

-#ifdef CONFIG_ATH9K_DEBUGFS
-void ath9k_debug_sync_cause(struct ath_common *common, u32 sync_cause);
-#else
-static inline void ath9k_debug_sync_cause(struct ath_common *common,
- u32 sync_cause) {}
-#endif
-
/* Generic hw timer primitives */
struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
void (*trigger)(void *),
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index f160abc..cda342e 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -541,6 +541,7 @@ irqreturn_t ath_isr(int irq, void *dev)
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
enum ath9k_int status;
+ u32 sync_cause;
bool sched = false;

/*
@@ -567,7 +568,8 @@ irqreturn_t ath_isr(int irq, void *dev)
* bits we haven't explicitly enabled so we mask the
* value to insure we only process bits we requested.
*/
- ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */
+ ath9k_hw_getisr(ah, &status, &sync_cause); /* NB: clears ISR too */
+ ath9k_debug_sync_cause(sc, sync_cause);
status &= ah->imask; /* discard unasked-for bits */

/*
--
1.8.3.4 (Apple Git-47)



2013-12-19 17:02:01

by Felix Fietkau

[permalink] [raw]
Subject: [PATCH 4/4] ath9k: simplify/fix tx packet TID handling

mac80211 guarantees that skb->priority is set to the TID, so use it
instead of trying to parse the QoS header manually.

Signed-off-by: Felix Fietkau <[email protected]>
---
drivers/net/wireless/ath/ath9k/xmit.c | 9 +--------
1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index a907bc9..9d735c5 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -174,14 +174,7 @@ static void ath_txq_skb_done(struct ath_softc *sc, struct ath_txq *txq,
static struct ath_atx_tid *
ath_get_skb_tid(struct ath_softc *sc, struct ath_node *an, struct sk_buff *skb)
{
- struct ieee80211_hdr *hdr;
- u8 tidno = 0;
-
- hdr = (struct ieee80211_hdr *) skb->data;
- if (ieee80211_is_data_qos(hdr->frame_control))
- tidno = ieee80211_get_qos_ctl(hdr)[0];
-
- tidno &= IEEE80211_QOS_CTL_TID_MASK;
+ u8 tidno = skb->priority & IEEE80211_QOS_CTL_TID_MASK;
return ATH_AN_2_TID(an, tidno);
}

--
1.8.3.4 (Apple Git-47)


2013-12-19 17:02:04

by Felix Fietkau

[permalink] [raw]
Subject: [PATCH 2/4] ath9k: call ath9k_set_tsfadjust from ath9k_beacon_config

Make that function and ath9k_allow_beacon_config static

Signed-off-by: Felix Fietkau <[email protected]>
---
drivers/net/wireless/ath/ath9k/ath9k.h | 2 --
drivers/net/wireless/ath/ath9k/beacon.c | 12 +++++++++---
drivers/net/wireless/ath/ath9k/main.c | 9 ++-------
3 files changed, 11 insertions(+), 12 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 9ad8a67..f2202e7 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -431,12 +431,10 @@ struct ath_beacon {
};

void ath9k_beacon_tasklet(unsigned long data);
-bool ath9k_allow_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif);
void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif,
u32 changed);
void ath9k_beacon_assign_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
-void ath9k_set_tsfadjust(struct ath_softc *sc, struct ieee80211_vif *vif);
void ath9k_set_beacon(struct ath_softc *sc);
bool ath9k_csa_is_finished(struct ath_softc *sc);

diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index 78ffe76..accfb3b 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -274,7 +274,7 @@ static int ath9k_beacon_choose_slot(struct ath_softc *sc)
return slot;
}

-void ath9k_set_tsfadjust(struct ath_softc *sc, struct ieee80211_vif *vif)
+static void ath9k_set_tsfadjust(struct ath_softc *sc, struct ieee80211_vif *vif)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
@@ -622,7 +622,8 @@ static void ath9k_beacon_config_adhoc(struct ath_softc *sc,
set_bit(SC_OP_BEACONS, &sc->sc_flags);
}

-bool ath9k_allow_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif)
+static bool ath9k_allow_beacon_config(struct ath_softc *sc,
+ struct ieee80211_vif *vif)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_vif *avp = (void *)vif->drv_priv;
@@ -693,12 +694,17 @@ void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif,
unsigned long flags;
bool skip_beacon = false;

+ if (vif->type == NL80211_IFTYPE_AP)
+ ath9k_set_tsfadjust(sc, vif);
+
+ if (!ath9k_allow_beacon_config(sc, vif))
+ return;
+
if (sc->sc_ah->opmode == NL80211_IFTYPE_STATION) {
ath9k_cache_beacon_config(sc, bss_conf);
ath9k_set_beacon(sc);
set_bit(SC_OP_BEACONS, &sc->sc_flags);
return;
-
}

/*
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index cda342e..21b764b 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1665,13 +1665,8 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
}

if ((changed & BSS_CHANGED_BEACON_ENABLED) ||
- (changed & BSS_CHANGED_BEACON_INT)) {
- if (ah->opmode == NL80211_IFTYPE_AP &&
- bss_conf->enable_beacon)
- ath9k_set_tsfadjust(sc, vif);
- if (ath9k_allow_beacon_config(sc, vif))
- ath9k_beacon_config(sc, vif, changed);
- }
+ (changed & BSS_CHANGED_BEACON_INT))
+ ath9k_beacon_config(sc, vif, changed);

if (changed & BSS_CHANGED_ERP_SLOT) {
if (bss_conf->use_short_slot)
--
1.8.3.4 (Apple Git-47)


2013-12-19 17:02:00

by Felix Fietkau

[permalink] [raw]
Subject: [PATCH 3/4] ath9k: fix TSF offset precision issue

Dividing the beacon interval by ATH_BCBUF (8) truncates the result for
the default beacon interval of 100.
Fix the calculation by moving the division after conversion from TU to
microseconds.

Signed-off-by: Felix Fietkau <[email protected]>
---
drivers/net/wireless/ath/ath9k/beacon.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index accfb3b..112aff7 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -279,13 +279,14 @@ static void ath9k_set_tsfadjust(struct ath_softc *sc, struct ieee80211_vif *vif)
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
struct ath_vif *avp = (void *)vif->drv_priv;
- u64 tsfadjust;
+ u32 tsfadjust;

if (avp->av_bslot == 0)
return;

- tsfadjust = cur_conf->beacon_interval * avp->av_bslot / ATH_BCBUF;
- avp->tsf_adjust = cpu_to_le64(TU_TO_USEC(tsfadjust));
+ tsfadjust = cur_conf->beacon_interval * avp->av_bslot;
+ tsfadjust = TU_TO_USEC(tsfadjust) / ATH_BCBUF;
+ avp->tsf_adjust = cpu_to_le64(tsfadjust);

ath_dbg(common, CONFIG, "tsfadjust is: %llu for bslot: %d\n",
(unsigned long long)tsfadjust, avp->av_bslot);
--
1.8.3.4 (Apple Git-47)