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ath9k: MCC, print time elapsed between events

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This is useful for MCC debugging and bug fixing.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Janusz Dziedzic 2015-11-27 09:37:17 +01:00 committed by Kalle Valo
parent a64d876ef7
commit 02edab5b5f
2 changed files with 18 additions and 2 deletions
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1
drivers/net/wireless/ath/ath9k/ath9k.h
View File

@ -981,6 +981,7 @@ struct ath_softc {
struct ath_offchannel offchannel;
struct ath_chanctx *next_chan;
struct completion go_beacon;
struct timespec last_event_time;
#endif
unsigned long driver_data;

19
drivers/net/wireless/ath/ath9k/channel.c
View File

@ -226,6 +226,20 @@ static const char *chanctx_state_string(enum ath_chanctx_state state)
}
}
static const u32 chanctx_event_delta(struct ath_softc *sc)
{
u64 ms;
struct timespec ts, *old;
getrawmonotonic(&ts);
old = &sc->last_event_time;
ms = ts.tv_sec * 1000 + ts.tv_nsec / 1000000;
ms -= old->tv_sec * 1000 + old->tv_nsec / 1000000;
sc->last_event_time = ts;
return (u32)ms;
}
void ath_chanctx_check_active(struct ath_softc *sc, struct ath_chanctx *ctx)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
@ -489,10 +503,11 @@ void ath_chanctx_event(struct ath_softc *sc, struct ieee80211_vif *vif,
spin_lock_bh(&sc->chan_lock);
ath_dbg(common, CHAN_CTX, "cur_chan: %d MHz, event: %s, state: %s\n",
ath_dbg(common, CHAN_CTX, "cur_chan: %d MHz, event: %s, state: %s, delta: %u ms\n",
sc->cur_chan->chandef.center_freq1,
chanctx_event_string(ev),
chanctx_state_string(sc->sched.state));
chanctx_state_string(sc->sched.state),
chanctx_event_delta(sc));
switch (ev) {
case ATH_CHANCTX_EVENT_BEACON_PREPARE: