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ath9k: Add debug counters for TX

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Location: ath9k/phy#/xmit

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith
2009-07-27 12:08:16 +05:30
committed by John W. Linville
parent 0ee9c13c7c
commit fec247c0d5
4 changed files with 160 additions and 14 deletions
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85
drivers/net/wireless/ath/ath9k/debug.c
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@@ -486,6 +486,83 @@ static const struct file_operations fops_wiphy = {
.owner = THIS_MODULE
};
#define PR(str, elem) \
do { \
len += snprintf(buf + len, size - len, \
"%s%13u%11u%10u%10u\n", str, \
sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_BE]].elem, \
sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_BK]].elem, \
sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_VI]].elem, \
sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_VO]].elem); \
} while(0)
static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
char *buf;
unsigned int len = 0, size = 2048;
ssize_t retval = 0;
buf = kzalloc(size, GFP_KERNEL);
if (buf == NULL)
return 0;
len += sprintf(buf, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
PR("MPDUs Queued: ", queued);
PR("MPDUs Completed: ", completed);
PR("Aggregates: ", a_aggr);
PR("AMPDUs Queued: ", a_queued);
PR("AMPDUs Completed:", a_completed);
PR("AMPDUs Retried: ", a_retries);
PR("AMPDUs XRetried: ", a_xretries);
PR("FIFO Underrun: ", fifo_underrun);
PR("TXOP Exceeded: ", xtxop);
PR("TXTIMER Expiry: ", timer_exp);
PR("DESC CFG Error: ", desc_cfg_err);
PR("DATA Underrun: ", data_underrun);
PR("DELIM Underrun: ", delim_underrun);
retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
kfree(buf);
return retval;
}
void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
struct ath_buf *bf)
{
struct ath_desc *ds = bf->bf_desc;
if (bf_isampdu(bf)) {
if (bf_isxretried(bf))
TX_STAT_INC(txq->axq_qnum, a_xretries);
else
TX_STAT_INC(txq->axq_qnum, a_completed);
} else {
TX_STAT_INC(txq->axq_qnum, completed);
}
if (ds->ds_txstat.ts_status & ATH9K_TXERR_FIFO)
TX_STAT_INC(txq->axq_qnum, fifo_underrun);
if (ds->ds_txstat.ts_status & ATH9K_TXERR_XTXOP)
TX_STAT_INC(txq->axq_qnum, xtxop);
if (ds->ds_txstat.ts_status & ATH9K_TXERR_TIMER_EXPIRED)
TX_STAT_INC(txq->axq_qnum, timer_exp);
if (ds->ds_txstat.ts_flags & ATH9K_TX_DESC_CFG_ERR)
TX_STAT_INC(txq->axq_qnum, desc_cfg_err);
if (ds->ds_txstat.ts_flags & ATH9K_TX_DATA_UNDERRUN)
TX_STAT_INC(txq->axq_qnum, data_underrun);
if (ds->ds_txstat.ts_flags & ATH9K_TX_DELIM_UNDERRUN)
TX_STAT_INC(txq->axq_qnum, delim_underrun);
}
static const struct file_operations fops_xmit = {
.read = read_file_xmit,
.open = ath9k_debugfs_open,
.owner = THIS_MODULE
};
int ath9k_init_debug(struct ath_softc *sc)
{
@@ -529,6 +606,13 @@ int ath9k_init_debug(struct ath_softc *sc)
if (!sc->debug.debugfs_wiphy)
goto err;
sc->debug.debugfs_xmit = debugfs_create_file("xmit",
S_IRUSR,
sc->debug.debugfs_phy,
sc, &fops_xmit);
if (!sc->debug.debugfs_xmit)
goto err;
return 0;
err:
ath9k_exit_debug(sc);
@@ -537,6 +621,7 @@ err:
void ath9k_exit_debug(struct ath_softc *sc)
{
debugfs_remove(sc->debug.debugfs_xmit);
debugfs_remove(sc->debug.debugfs_wiphy);
debugfs_remove(sc->debug.debugfs_rcstat);
debugfs_remove(sc->debug.debugfs_interrupt);