From f2ac7e301ae6397669ff3f79e691942a9b5d2f39 Mon Sep 17 00:00:00 2001 From: Michal Kazior Date: Wed, 27 Jan 2016 15:26:12 +0100 Subject: mac80211: expose txq queue depth and size to drivers This will allow drivers to make more educated decisions whether to defer transmission or not. Relying on wake_tx_queue() call count implicitly was not possible because it could be called without queued frame count actually changing on software tx aggregation start/stop code paths. It was also not possible to know how long byte-wise queue was without dequeueing. Signed-off-by: Michal Kazior Signed-off-by: Johannes Berg --- net/mac80211/util.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'net/mac80211/util.c') diff --git a/net/mac80211/util.c b/net/mac80211/util.c index fb90d9c5df59..091f3dd62ad1 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -3368,3 +3368,17 @@ void ieee80211_init_tx_queue(struct ieee80211_sub_if_data *sdata, txqi->txq.ac = IEEE80211_AC_BE; } } + +void ieee80211_txq_get_depth(struct ieee80211_txq *txq, + unsigned long *frame_cnt, + unsigned long *byte_cnt) +{ + struct txq_info *txqi = to_txq_info(txq); + + if (frame_cnt) + *frame_cnt = txqi->queue.qlen; + + if (byte_cnt) + *byte_cnt = txqi->byte_cnt; +} +EXPORT_SYMBOL(ieee80211_txq_get_depth); -- cgit v1.2.3