[RFC,1/2] mac80211: allow advertising correct maximum aggregate size

Commit Message

Johannes Berg Jan. 12, 2011, 12:31 p.m. UTC

None

Patch

--- wireless-testing.orig/include/net/mac80211.h	2011-01-12 13:25:40.000000000 +0100
+++ wireless-testing/include/net/mac80211.h	2011-01-12 13:26:56.000000000 +0100
@@ -1147,6 +1147,10 @@  enum ieee80211_hw_flags {
  * @napi_weight: weight used for NAPI polling.  You must specify an
  *	appropriate value here if a napi_poll operation is provided
  *	by your driver.
+ *
+ * @max_tx_aggregation_subframes: maximum number of subframes in an
+ *	aggregate an HT driver will transmit, used by the peer as a
+ *	hint to size its reorder buffer.
  */
 struct ieee80211_hw {
 	struct ieee80211_conf conf;
@@ -1165,6 +1169,7 @@  struct ieee80211_hw {
 	u8 max_rates;
 	u8 max_report_rates;
 	u8 max_rate_tries;
+	u8 max_tx_aggregation_subframes;
 };
 
 /**
--- wireless-testing.orig/net/mac80211/agg-tx.c	2011-01-12 13:27:01.000000000 +0100
+++ wireless-testing/net/mac80211/agg-tx.c	2011-01-12 13:27:20.000000000 +0100
@@ -342,7 +342,8 @@  void ieee80211_tx_ba_session_handle_star
 	/* send AddBA request */
 	ieee80211_send_addba_request(sdata, sta->sta.addr, tid,
 				     tid_tx->dialog_token, start_seq_num,
-				     0x40, tid_tx->timeout);
+				     local->hw.max_tx_aggregation_subframes,
+				     tid_tx->timeout);
 }
 
 int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid,