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ath9k: make MAC sample statistics optional

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They're more expensive than some of the other debug options and only used
in very rare situations, so it sometimes makes sense to disable them while
leaving in debugfs support.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2012-03-03 15:17:03 +01:00 committed by John W. Linville
parent 9c083af868
commit 5baec7422c
4 changed files with 36 additions and 6 deletions
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8
drivers/net/wireless/ath/ath9k/Kconfig
View File

@ -81,6 +81,14 @@ config ATH9K_DFS_CERTIFIED
developed. At this point enabling this option won't do anything
except increase code size.
config ATH9K_MAC_DEBUG
bool "Atheros MAC statistics"
depends on ATH9K_DEBUGFS
default y
---help---
This option enables collection of statistics for Rx/Tx status
data and some other MAC related statistics
config ATH9K_RATE_CONTROL
bool "Atheros ath9k rate control"
depends on ATH9K

10
drivers/net/wireless/ath/ath9k/debug.c
View File

@ -818,6 +818,7 @@ void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
TX_STAT_INC(qnum, delim_underrun);
#ifdef CONFIG_ATH9K_MAC_DEBUG
spin_lock(&sc->debug.samp_lock);
TX_SAMP_DBG(jiffies) = jiffies;
TX_SAMP_DBG(rssi_ctl0) = ts->ts_rssi_ctl0;
@ -844,6 +845,7 @@ void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
sc->debug.tsidx = (sc->debug.tsidx + 1) % ATH_DBG_MAX_SAMPLES;
spin_unlock(&sc->debug.samp_lock);
#endif
#undef TX_SAMP_DBG
}
@ -1019,6 +1021,7 @@ void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
sc->debug.stats.rxstats.rs_antenna = rs->rs_antenna;
#ifdef CONFIG_ATH9K_MAC_DEBUG
spin_lock(&sc->debug.samp_lock);
RX_SAMP_DBG(jiffies) = jiffies;
RX_SAMP_DBG(rssi_ctl0) = rs->rs_rssi_ctl0;
@ -1035,6 +1038,8 @@ void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
sc->debug.rsidx = (sc->debug.rsidx + 1) % ATH_DBG_MAX_SAMPLES;
spin_unlock(&sc->debug.samp_lock);
#endif
#undef RX_STAT_INC
#undef RX_PHY_ERR_INC
#undef RX_SAMP_DBG
@ -1278,6 +1283,8 @@ static const struct file_operations fops_modal_eeprom = {
.llseek = default_llseek,
};
#ifdef CONFIG_ATH9K_MAC_DEBUG
void ath9k_debug_samp_bb_mac(struct ath_softc *sc)
{
#define ATH_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].c)
@ -1551,6 +1558,7 @@ static const struct file_operations fops_samps = {
.llseek = default_llseek,
};
#endif
int ath9k_init_debug(struct ath_hw *ah)
{
@ -1604,8 +1612,10 @@ int ath9k_init_debug(struct ath_hw *ah)
&fops_base_eeprom);
debugfs_create_file("modal_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
&fops_modal_eeprom);
#ifdef CONFIG_ATH9K_MAC_DEBUG
debugfs_create_file("samples", S_IRUSR, sc->debug.debugfs_phy, sc,
&fops_samps);
#endif
debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR,
sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);

20
drivers/net/wireless/ath/ath9k/debug.h
View File

@ -235,16 +235,17 @@ struct ath9k_debug {
struct dentry *debugfs_phy;
u32 regidx;
struct ath_stats stats;
#ifdef CONFIG_ATH9K_MAC_DEBUG
spinlock_t samp_lock;
struct ath_dbg_bb_mac_samp bb_mac_samp[ATH_DBG_MAX_SAMPLES];
u8 sampidx;
u8 tsidx;
u8 rsidx;
#endif
};
int ath9k_init_debug(struct ath_hw *ah);
void ath9k_debug_samp_bb_mac(struct ath_softc *sc);
void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status);
void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
struct ath_tx_status *ts, struct ath_txq *txq,
@ -258,10 +259,6 @@ static inline int ath9k_init_debug(struct ath_hw *ah)
return 0;
}
static inline void ath9k_debug_samp_bb_mac(struct ath_softc *sc)
{
}
static inline void ath_debug_stat_interrupt(struct ath_softc *sc,
enum ath9k_int status)
{
@ -282,4 +279,17 @@ static inline void ath_debug_stat_rx(struct ath_softc *sc,
#endif /* CONFIG_ATH9K_DEBUGFS */
#ifdef CONFIG_ATH9K_MAC_DEBUG
void ath9k_debug_samp_bb_mac(struct ath_softc *sc);
#else
static inline void ath9k_debug_samp_bb_mac(struct ath_softc *sc)
{
}
#endif
#endif /* DEBUG_H */

4
drivers/net/wireless/ath/ath9k/init.c
View File

@ -555,8 +555,10 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
mutex_init(&sc->mutex);
#ifdef CONFIG_ATH9K_DEBUGFS
spin_lock_init(&sc->nodes_lock);
spin_lock_init(&sc->debug.samp_lock);
INIT_LIST_HEAD(&sc->nodes);
#endif
#ifdef CONFIG_ATH9K_MAC_DEBUG
spin_lock_init(&sc->debug.samp_lock);
#endif
tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc);
tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet,