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From: Pyun YongHyeon <yongari@FreeBSD.org>
Date: Mon, 10 Jan 2011 19:59:20 +0000 (UTC)
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X-FreeBSD-CVS-Branch: RELENG_7_4
Subject: cvs commit: src/sys/dev/bge if_bge.c
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yongari     2011-01-10 19:59:20 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_7_4)
    sys/dev/bge          if_bge.c 
  Log:
  SVN rev 217235 on 2011-01-10 19:59:20Z by yongari
  
  MFC r217226:
    Apply DMA address space restriction to controllers that have 4GB
    DMA boundary bug and runs with PCI-X mode.  watchdog timeout was
    observed on BCM5704 which lives behind certain PCI-X bridge(e.g.
    AMD 8131 PCI-X bridge).  It's still not clear whether the root
    cause came from that PCI-X bridge or not. The watchdog timeout
    indicates the issue is in TX path. If the bridge reorders TX
    mailbox write accesses it would generate all kinds of problems but
    I'm not sure.  This should be revisited.
  
    Early MFC requested by re@ for inclusion in 8.2-RC2/7.4-RC2.
  
    Tested by:    Michael L. Squires (mikes <> siralan dot org)
    Approved by:  re (kensmith)
  
  Revision        Changes    Path
  1.198.2.63.2.2  +11 -1     src/sys/dev/bge/if_bge.c