diff options
| author | Arik Nemtsov <arik@wizery.com> | 2012-07-23 23:50:45 +0300 |
|---|---|---|
| committer | Luciano Coelho <luca@coelho.fi> | 2012-09-27 12:13:51 +0300 |
| commit | 958e303abba61bad165a96e22e138c4763047df2 (patch) | |
| tree | 184043c341c555d300df5550507d0c68b7405e8f /drivers/net/wireless/ti | |
| parent | 714947600eca45e053af7d77d99d1b8fb227dc83 (diff) | |
| download | linux-958e303abba61bad165a96e22e138c4763047df2.tar.bz2 | |
wlcore: make Tx flush timings more verbose
Print how much time a flush took. This will help debug the time it takes
to switch between channels.
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
Diffstat (limited to 'drivers/net/wireless/ti')
| -rw-r--r-- | drivers/net/wireless/ti/wlcore/tx.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/net/wireless/ti/wlcore/tx.c b/drivers/net/wireless/ti/wlcore/tx.c index 24ac8ecde867..d89e0db8a6f9 100644 --- a/drivers/net/wireless/ti/wlcore/tx.c +++ b/drivers/net/wireless/ti/wlcore/tx.c @@ -1076,9 +1076,10 @@ void wl12xx_tx_reset(struct wl1271 *wl) /* caller must *NOT* hold wl->mutex */ void wl1271_tx_flush(struct wl1271 *wl) { - unsigned long timeout; + unsigned long timeout, start_time; int i; - timeout = jiffies + usecs_to_jiffies(WL1271_TX_FLUSH_TIMEOUT); + start_time = jiffies; + timeout = start_time + usecs_to_jiffies(WL1271_TX_FLUSH_TIMEOUT); /* only one flush should be in progress, for consistent queue state */ mutex_lock(&wl->flush_mutex); @@ -1087,19 +1088,23 @@ void wl1271_tx_flush(struct wl1271 *wl) while (!time_after(jiffies, timeout)) { mutex_lock(&wl->mutex); - wl1271_debug(DEBUG_TX, "flushing tx buffer: %d %d", + wl1271_debug(DEBUG_MAC80211, "flushing tx buffer: %d %d", wl->tx_frames_cnt, wl1271_tx_total_queue_count(wl)); if ((wl->tx_frames_cnt == 0) && (wl1271_tx_total_queue_count(wl) == 0)) { mutex_unlock(&wl->mutex); + wl1271_debug(DEBUG_MAC80211, "tx flush took %d ms", + jiffies_to_msecs(jiffies - start_time)); goto out; } mutex_unlock(&wl->mutex); msleep(1); } - wl1271_warning("Unable to flush all TX buffers, timed out."); + wl1271_warning("Unable to flush all TX buffers, " + "timed out (timeout %d ms", + WL1271_TX_FLUSH_TIMEOUT / 1000); /* forcibly flush all Tx buffers on our queues */ mutex_lock(&wl->mutex); |