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ath9k: Add more recv stats.

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This adds counters in various places that can drop packets on
rx without otherwise incrementing a counter.  It also counts
some non-error cases, such as becons and fragments received.

Should help with figuring out where packets are (and are not)
dropped.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ben Greear
2012-04-03 09:18:59 -07:00
committed by John W. Linville
parent a5a0bca1d8
commit 150721894e
3 changed files with 65 additions and 11 deletions
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23
drivers/net/wireless/ath/ath9k/debug.c
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@@ -916,6 +916,21 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf,
len += snprintf(buf + len, size - len,
"%22s : %10u\n", "DECRYPT BUSY ERR",
sc->debug.stats.rxstats.decrypt_busy_err);
len += snprintf(buf + len, size - len,
"%22s : %10u\n", "RX-LENGTH-ERR",
sc->debug.stats.rxstats.rx_len_err);
len += snprintf(buf + len, size - len,
"%22s : %10u\n", "RX-OOM-ERR",
sc->debug.stats.rxstats.rx_oom_err);
len += snprintf(buf + len, size - len,
"%22s : %10u\n", "RX-RATE-ERR",
sc->debug.stats.rxstats.rx_rate_err);
len += snprintf(buf + len, size - len,
"%22s : %10u\n", "RX-DROP-RXFLUSH",
sc->debug.stats.rxstats.rx_drop_rxflush);
len += snprintf(buf + len, size - len,
"%22s : %10u\n", "RX-TOO-MANY-FRAGS",
sc->debug.stats.rxstats.rx_too_many_frags_err);
PHY_ERR("UNDERRUN ERR", ATH9K_PHYERR_UNDERRUN);
PHY_ERR("TIMING ERR", ATH9K_PHYERR_TIMING);
@@ -950,6 +965,12 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf,
len += snprintf(buf + len, size - len,
"%22s : %10u\n", "RX-Bytes-All",
sc->debug.stats.rxstats.rx_bytes_all);
len += snprintf(buf + len, size - len,
"%22s : %10u\n", "RX-Beacons",
sc->debug.stats.rxstats.rx_beacons);
len += snprintf(buf + len, size - len,
"%22s : %10u\n", "RX-Frags",
sc->debug.stats.rxstats.rx_frags);
if (len > size)
len = size;
@@ -964,7 +985,6 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf,
void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
{
#define RX_STAT_INC(c) sc->debug.stats.rxstats.c++
#define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
#define RX_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].rs\
[sc->debug.rsidx].c)
@@ -1010,7 +1030,6 @@ void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
#endif
#undef RX_STAT_INC
#undef RX_PHY_ERR_INC
#undef RX_SAMP_DBG
}