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From: Bernhard Schmidt <bschmidt@FreeBSD.org>
Date: Sat, 4 Jun 2011 14:28:09 +0000 (UTC)
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Subject: svn commit: r222682 - head/sys/net80211
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Author: bschmidt
Date: Sat Jun  4 14:28:09 2011
New Revision: 222682
URL: http://svn.freebsd.org/changeset/base/222682

Log:
  Data frames sent over the mgmt path might be part of a TX aggr session
  too. In that case don't fiddle with the seqno as drivers are supposed
  to handle that.
  
  Currently only the powersave feature does sent QoS-null-data frames
  before and after a background scan which must be handled correctly. Due
  to this being quite rare we don't fiddle around with starting of aggr
  sessions.

Modified:
  head/sys/net80211/ieee80211_output.c

Modified: head/sys/net80211/ieee80211_output.c
==============================================================================
--- head/sys/net80211/ieee80211_output.c	Sat Jun  4 12:51:22 2011	(r222681)
+++ head/sys/net80211/ieee80211_output.c	Sat Jun  4 14:28:09 2011	(r222682)
@@ -516,6 +516,7 @@ ieee80211_send_setup(
 {
 #define	WH4(wh)	((struct ieee80211_frame_addr4 *)wh)
 	struct ieee80211vap *vap = ni->ni_vap;
+	struct ieee80211_tx_ampdu *tap;
 	struct ieee80211_frame *wh = mtod(m, struct ieee80211_frame *);
 	ieee80211_seq seqno;
 
@@ -583,9 +584,15 @@ ieee80211_send_setup(
 	}
 	*(uint16_t *)&wh->i_dur[0] = 0;
 
-	seqno = ni->ni_txseqs[tid]++;
-	*(uint16_t *)&wh->i_seq[0] = htole16(seqno << IEEE80211_SEQ_SEQ_SHIFT);
-	M_SEQNO_SET(m, seqno);
+	tap = &ni->ni_tx_ampdu[TID_TO_WME_AC(tid)];
+	if (tid != IEEE80211_NONQOS_TID && IEEE80211_AMPDU_RUNNING(tap))
+		m->m_flags |= M_AMPDU_MPDU;
+	else {
+		seqno = ni->ni_txseqs[tid]++;
+		*(uint16_t *)&wh->i_seq[0] =
+		    htole16(seqno << IEEE80211_SEQ_SEQ_SHIFT);
+		M_SEQNO_SET(m, seqno);
+	}
 
 	if (IEEE80211_IS_MULTICAST(wh->i_addr1))
 		m->m_flags |= M_MCAST;