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From: Scott Long <scottl@FreeBSD.org>
Date: Fri, 10 Jan 2003 17:59:21 -0800 (PST)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/dev/aac aac.c aac_debug.c aac_disk.c aacreg.h
X-FreeBSD-CVS-Branch: HEAD
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scottl      2003/01/10 17:59:21 PST

  Modified files:
    sys/dev/aac          aac.c aac_debug.c aac_disk.c aacreg.h 
  Log:
  Major bugfixes for large memory and fast systems.
  
  aac.c:
          Re-arrange the interrupt handler to optimize the common case of
          the adapter interrupting us because one or more commands are complete,
          and do a read across the pci bus to ensure that all posted status
          writes are flushed.  This should close a race that could cause command
          completion interrupts to be lost.
          Follow the spec a bit closer when filling out command structures.
          Enable the Fast Response feature to eliminate the need for the card
          to DMA successfull command completions back into host memory.
          Tell the controller how much physical memory we have.  Without this
          there was a chance that our DMA regions would collide with the
          memory window used by the cache on the controller.  The result would
          be massive data corruption.  This seemed to mainly affect systems with
          >2GB of memory.
          Fix a few whitespace problems.
  
  aac_debug.c:
          Add an extra diagnostic when printing out commands.
  
  aac_disk.c:
          Add extra sanity checks.
  
  aacreg.h:
          Prepare for making this 64-bit clean by reducing the use of enumeration
          types in structures.
  
  Many thanks to Justin Gibbs for helping track these down.
  
  Revision  Changes    Path
  1.46      +50 -39    src/sys/dev/aac/aac.c
  1.12      +5 -0      src/sys/dev/aac/aac_debug.c
  1.25      +7 -2      src/sys/dev/aac/aac_disk.c
  1.15      +28 -26    src/sys/dev/aac/aacreg.h

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