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From: Pyun YongHyeon <yongari@FreeBSD.org>
Date: Fri, 20 May 2011 18:27:13 +0000 (UTC)
To: cvs-src-old@freebsd.org
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Subject: cvs commit: src/sys/dev/vge if_vge.c
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yongari     2011-05-20 18:27:13 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/vge          if_vge.c 
  Log:
  SVN rev 222142 on 2011-05-20 18:27:13Z by yongari
  
  Datasheet says vge(4) controllers support DAC but it seems that's
  not true on old PCI based controllers.  DAC configuration is read
  from EEPROM in device reset phase and driver can override DAC
  configuration.  However I guess there is an undocumented reason why
  EEPROM configuration does not enable DAC so do not blindly override
  DAC configuration.  Recent PCIe based controllers are supposed to
  support 64bit DMA so allow 64bit DMA only on PCIe based controllers.
  
  PR:             kern/157184
  MFC after:      1 week
  
  Revision  Changes    Path
  1.75      +17 -2     src/sys/dev/vge/if_vge.c