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From: Alexander Motin <mav@FreeBSD.org>
Date: Mon, 21 Dec 2009 21:27:56 +0000 (UTC)
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Subject: cvs commit: src/sys/dev/ahci ahci.c
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mav         2009-12-21 21:27:56 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/ahci         ahci.c 
  Log:
  SVN rev 200814 on 2009-12-21 21:27:56Z by mav
  
  Clear all ports interrupt status bits in single write. Clearing one by one
  causes additional MSIs messages sent if several ports asked for attention
  same time. Time window before clearing is not important, as these interrupts
  are level triggered by interrupt source.
  
  Revision  Changes    Path
  1.20      +6 -8      src/sys/dev/ahci/ahci.c