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From: Alexander Motin <mav@FreeBSD.org>
Date: Tue, 19 Apr 2011 16:43:55 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: RELENG_8
Subject: cvs commit: src/sys/dev/ahci ahci.c
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mav         2011-04-19 16:43:55 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_8)
    sys/dev/ahci         ahci.c 
  Log:
  SVN rev 220850 on 2011-04-19 16:43:55Z by mav
  
  MFC r218596, r218605:
  Disable NCQ for multiport Marvell 88SX61XX SATA controllers. Simultaneous
  active I/O to several disks (copying large file on ZFS) causes timeout after
  just a few seconds of run. Single port 88SX6111 seems like not affected.
  
  Skip reading transferred bytes count for these controllers. It works for
  88SX6111, but 88SX6145 always returns zero there. Haven't tested others,
  but better to be safe.
  
  Revision  Changes    Path
  1.1.2.47  +13 -6     src/sys/dev/ahci/ahci.c