mac80211: support direct offchannel TX offload
For devices supported by iwlwifi sometimes
off-channel transmissions need to be handled
by the device completely. To support this
mac80211 needs to pass the frame directly
to the driver and not through the TX path
as the driver needs the frame and channel
information at the same time.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 96cc7ed..2b072fa 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1799,6 +1799,11 @@
* ieee80211_remain_on_channel_expired(). This callback may sleep.
* @cancel_remain_on_channel: Requests that an ongoing off-channel period is
* aborted before it expires. This callback may sleep.
+ * @offchannel_tx: Transmit frame on another channel, wait for a response
+ * and return. Reliable TX status must be reported for the frame. If the
+ * return value is 1, then the @remain_on_channel will be used with a
+ * regular transmission (if supported.)
+ * @offchannel_tx_cancel_wait: cancel wait associated with offchannel TX
*/
struct ieee80211_ops {
void (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb);
@@ -1878,6 +1883,11 @@
enum nl80211_channel_type channel_type,
int duration);
int (*cancel_remain_on_channel)(struct ieee80211_hw *hw);
+ int (*offchannel_tx)(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ieee80211_channel *chan,
+ enum nl80211_channel_type channel_type,
+ unsigned int wait);
+ int (*offchannel_tx_cancel_wait)(struct ieee80211_hw *hw);
};
/**