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>
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714947600e
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1 changed files with 9 additions and 4 deletions
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@ -1076,9 +1076,10 @@ void wl12xx_tx_reset(struct wl1271 *wl)
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/* caller must *NOT* hold wl->mutex */
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void wl1271_tx_flush(struct wl1271 *wl)
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{
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unsigned long timeout;
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unsigned long timeout, start_time;
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int i;
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timeout = jiffies + usecs_to_jiffies(WL1271_TX_FLUSH_TIMEOUT);
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start_time = jiffies;
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timeout = start_time + usecs_to_jiffies(WL1271_TX_FLUSH_TIMEOUT);
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/* only one flush should be in progress, for consistent queue state */
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mutex_lock(&wl->flush_mutex);
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@ -1087,19 +1088,23 @@ void wl1271_tx_flush(struct wl1271 *wl)
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while (!time_after(jiffies, timeout)) {
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mutex_lock(&wl->mutex);
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wl1271_debug(DEBUG_TX, "flushing tx buffer: %d %d",
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wl1271_debug(DEBUG_MAC80211, "flushing tx buffer: %d %d",
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wl->tx_frames_cnt,
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wl1271_tx_total_queue_count(wl));
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if ((wl->tx_frames_cnt == 0) &&
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(wl1271_tx_total_queue_count(wl) == 0)) {
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mutex_unlock(&wl->mutex);
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wl1271_debug(DEBUG_MAC80211, "tx flush took %d ms",
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jiffies_to_msecs(jiffies - start_time));
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goto out;
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}
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mutex_unlock(&wl->mutex);
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msleep(1);
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}
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wl1271_warning("Unable to flush all TX buffers, timed out.");
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wl1271_warning("Unable to flush all TX buffers, "
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"timed out (timeout %d ms",
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WL1271_TX_FLUSH_TIMEOUT / 1000);
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/* forcibly flush all Tx buffers on our queues */
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mutex_lock(&wl->mutex);
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