From owner-cvs-all  Fri Jun 18 17:37: 3 1999
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From: Bill Paul <wpaul@FreeBSD.org>
Date: Fri, 18 Jun 1999 17:36:59 -0700 (PDT)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/pci if_ti.c if_tireg.h
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wpaul       1999/06/18 17:36:58 PDT

  Modified files:
    sys/pci              if_ti.c if_tireg.h 
  Log:
  Add a transmit descriptor usage counter and use it to absolutely,
  positively not let ti_encap() fill up the TX ring all the way and wrap
  around. This fixes a potential transmit lockup where a really fast
  machine (or particular TX traffic pattern) can overrun the end of the
  ring.
  
  Reported by: John Plevyak <jplevyak@inktomi.com>
  
  Revision  Changes    Path
  1.7       +13 -3     src/sys/pci/if_ti.c
  1.4       +2 -1      src/sys/pci/if_tireg.h



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