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mac80211: implement off-channel mgmt TX

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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 <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2010-11-25 10:02:30 +01:00
committed by John W. Linville
parent f7ca38dfe5
commit f30221e4ec
4 changed files with 129 additions and 6 deletions
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22
net/mac80211/work.c
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@@ -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;