From f30221e4ec62d905b56d5e8f7ccab6b406a97cf5 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 25 Nov 2010 10:02:30 +0100 Subject: mac80211: implement off-channel mgmt TX This implements the new off-channel TX API in mac80211 with a new work item type. The operation doesn't add a new work item when we're on the right channel and there's no wait time so that for example p2p probe responses will be transmitted without delay. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/work.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'net/mac80211/work.c') diff --git a/net/mac80211/work.c b/net/mac80211/work.c index ae344d1ba05..2b5c3f26719 100644 --- a/net/mac80211/work.c +++ b/net/mac80211/work.c @@ -560,6 +560,25 @@ ieee80211_remain_on_channel_timeout(struct ieee80211_work *wk) return WORK_ACT_TIMEOUT; } +static enum work_action __must_check +ieee80211_offchannel_tx(struct ieee80211_work *wk) +{ + if (!wk->started) { + wk->timeout = jiffies + msecs_to_jiffies(wk->offchan_tx.wait); + + /* + * After this, offchan_tx.frame remains but now is no + * longer a valid pointer -- we still need it as the + * cookie for canceling this work. + */ + ieee80211_tx_skb(wk->sdata, wk->offchan_tx.frame); + + return WORK_ACT_NONE; + } + + return WORK_ACT_TIMEOUT; +} + static enum work_action __must_check ieee80211_assoc_beacon_wait(struct ieee80211_work *wk) { @@ -955,6 +974,9 @@ static void ieee80211_work_work(struct work_struct *work) case IEEE80211_WORK_REMAIN_ON_CHANNEL: rma = ieee80211_remain_on_channel_timeout(wk); break; + case IEEE80211_WORK_OFFCHANNEL_TX: + rma = ieee80211_offchannel_tx(wk); + break; case IEEE80211_WORK_ASSOC_BEACON_WAIT: rma = ieee80211_assoc_beacon_wait(wk); break; -- cgit v1.2.3-18-g5258