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From: Adrian Chadd <adrian@FreeBSD.org>
Date: Wed, 4 Apr 2012 22:24:11 +0000 (UTC)
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Subject: svn commit: r233898 - head/sys/dev/ath
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Author: adrian
Date: Wed Apr  4 22:24:11 2012
New Revision: 233898
URL: http://svn.freebsd.org/changeset/base/233898

Log:
  Disable the HWQ contents upon a TX queue reset, rather than a TX queue flush.
  
  This is designed to assist in figuring out what the hardware state is
  when something like a queue hang has occured.

Modified:
  head/sys/dev/ath/if_ath.c

Modified: head/sys/dev/ath/if_ath.c
==============================================================================
--- head/sys/dev/ath/if_ath.c	Wed Apr  4 22:22:50 2012	(r233897)
+++ head/sys/dev/ath/if_ath.c	Wed Apr  4 22:24:11 2012	(r233898)
@@ -4910,6 +4910,10 @@ ath_tx_processq(struct ath_softc *sc, st
 		if (sc->sc_debug & ATH_DEBUG_XMIT_DESC)
 			ath_printtxbuf(sc, bf, txq->axq_qnum, 0,
 			    status == HAL_OK);
+		else if ((sc->sc_debug & ATH_DEBUG_RESET) && (dosched == 0)) {
+			ath_printtxbuf(sc, bf, txq->axq_qnum, 0,
+			    status == HAL_OK);
+		}
 #endif
 		if (status == HAL_EINPROGRESS) {
 			ATH_TXQ_UNLOCK(txq);