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Commit 029bc432 authored by Sujith's avatar Sujith Committed by John W. Linville
Browse files

ath9k: Add retry counters to rate control debug file 



Signed-off-by: default avatarSujith <Sujith.Manoharan@atheros.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent d42c6b71

drivers/net/wireless/ath9k/core.h

+9 −0
Original line number Diff line number Diff line
@@ -137,6 +137,8 @@ struct ath_legacy_rc_stats { 


struct ath_11n_rc_stats {

	u32 success;

	u32 retries;

	u32 xretries;

};



struct ath_stats {
@@ -160,6 +162,8 @@ int ath9k_init_debug(struct ath_softc *sc); 
void ath9k_exit_debug(struct ath_softc *sc);

void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status);

void ath_debug_stat_rc(struct ath_softc *sc, struct sk_buff *skb);

void ath_debug_stat_retries(struct ath_softc *sc, int rix,

			    int xretries, int retries);



#else
@@ -187,6 +191,11 @@ static inline void ath_debug_stat_rc(struct ath_softc *sc, 
{

}



static inline void ath_debug_stat_retries(struct ath_softc *sc, int rix,

					  int xretries, int retries)

{

}



#endif /* CONFIG_ATH9K_DEBUG */



struct ath_config {

drivers/net/wireless/ath9k/debug.c

+19 −4
Original line number Diff line number Diff line
@@ -258,21 +258,36 @@ void ath_debug_stat_rc(struct ath_softc *sc, struct sk_buff *skb) 
		ath_debug_stat_legacy_rc(sc, skb);

}



/* FIXME: legacy rates, later on .. */

void ath_debug_stat_retries(struct ath_softc *sc, int rix,

			    int xretries, int retries)

{

	if (conf_is_ht(&sc->hw->conf)) {

		int idx = sc->cur_rate_table->info[rix].dot11rate;



		sc->sc_debug.stats.n_rcstats[idx].xretries += xretries;

		sc->sc_debug.stats.n_rcstats[idx].retries += retries;

	}

}



static ssize_t ath_read_file_stat_11n_rc(struct file *file,

					 char __user *user_buf,

					 size_t count, loff_t *ppos)

{

	struct ath_softc *sc = file->private_data;

	char buf[512];

	char buf[1024];

	unsigned int len = 0;

	int i = 0;



	len += sprintf(buf, "%7s %13s\n\n", "Rate", "Success");

	len += sprintf(buf, "%7s %13s %8s %8s\n\n", "Rate", "Success",

		       "Retries", "XRetries");



	for (i = 0; i <= 15; i++) {

		len += snprintf(buf + len, sizeof(buf) - len,

				"%5s%3d: %8u\n", "MCS", i,

				sc->sc_debug.stats.n_rcstats[i].success);

				"%5s%3d: %8u %8u %8u\n", "MCS", i,

				sc->sc_debug.stats.n_rcstats[i].success,

				sc->sc_debug.stats.n_rcstats[i].retries,

				sc->sc_debug.stats.n_rcstats[i].xretries);

	}



	return simple_read_from_buffer(user_buf, count, ppos, buf, len);

drivers/net/wireless/ath9k/rc.c

+2 −0
Original line number Diff line number Diff line
@@ -1267,6 +1267,8 @@ static void ath_rc_update_ht(struct ath_softc *sc, 
		ath_rc_priv->per_down_time = now_msec;

	}



	ath_debug_stat_retries(sc, tx_rate, xretries, retries);



#undef CHK_RSSI

}