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From: Adrian Chadd <adrian@FreeBSD.org>
Date: Tue, 22 May 2012 19:50:21 +0000 (UTC)
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Subject: svn commit: r235804 - head/sys/dev/ath
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Author: adrian
Date: Tue May 22 19:50:21 2012
New Revision: 235804
URL: http://svn.freebsd.org/changeset/base/235804

Log:
  Re-up the TX ath_buf limit from 128 to 512.
  
  I'll have to leave this high for now, until I've done some significant
  surgery with how ath_bufs (and descriptors) are handled.
  
  This should significantly cut down on the opportunities for a full TX
  queue hanging traffic.  I'll continue making things work though; I'm
  mostly doing this for users. :)

Modified:
  head/sys/dev/ath/if_athvar.h

Modified: head/sys/dev/ath/if_athvar.h
==============================================================================
--- head/sys/dev/ath/if_athvar.h	Tue May 22 19:43:20 2012	(r235803)
+++ head/sys/dev/ath/if_athvar.h	Tue May 22 19:50:21 2012	(r235804)
@@ -47,7 +47,7 @@
  * 802.11n requires more TX and RX buffers to do AMPDU.
  */
 #ifdef	ATH_ENABLE_11N
-#define	ATH_TXBUF	128
+#define	ATH_TXBUF	512
 #define	ATH_RXBUF	512
 #endif