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From: Stanislav Sedov <stas@FreeBSD.org>
Date: Tue, 15 Dec 2009 10:36:08 +0000 (UTC)
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X-FreeBSD-CVS-Branch: RELENG_7
Subject: cvs commit: src/sys/dev/bge if_bge.c
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stas        2009-12-15 10:36:08 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_7)
    sys/dev/bge          if_bge.c 
  Log:
  SVN rev 200571 on 2009-12-15 10:36:08Z by stas
  
  - MFC r198318:
    - On entrance to the rx_eof sync RX rings maps with POSTWRITE flag
      instead of POSTREAD: the hardware do not touch this memory (CPU
      updates it).  It is already synchronized as PREWRITE after the
      processing is done.
  
    - Synchronize RX return ring memory in rx_eof.  This is needed
      as the deviced updates this memory when receives packets.
  
    - Decouple the synchronization of BGE status block in the interrupt
      service routine: perfrom PREREAD synchronization only all accesses
      to this block are finished.  This seems to be more natural.
  
  Revision    Changes    Path
  1.198.2.21  +7 -4      src/sys/dev/bge/if_bge.c