From owner-cvs-all  Thu Oct 21 12:42:19 1999
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From: Bill Paul <wpaul@FreeBSD.org>
Date: Thu, 21 Oct 1999 12:42:04 -0700 (PDT)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/pci if_rl.c if_rlreg.h
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wpaul       1999/10/21 12:42:04 PDT

  Modified files:
    sys/pci              if_rl.c if_rlreg.h 
  Log:
  Make some tweaks to the RealTek driver:
  
  - Fix a bug in rl_rxeof() handler: in the case where the packet wraps
    from the end of the receive buffer back to the beginning, we need to
    insure that at least sizeof(ether_header) bytes make it into the first
    mbuf. If we don't, then doing eh = mtod(m, struct ether_header *)
    loses. To avoid this, we use m_pullup() to suck at least MHLEN -
    RL_ETHER_ALIGN bytes into the first mbuf, which should also help
    small packets fit into a single mbuf.
  
    Pointed out by: Philip A. Prindeville <philipp@zembu.com>
  
  - Make the transmit threshold autotuning: start off with a small value
    and jack it up when TX underruns are detected.
  
  - Also improve TX error recovery: kick the chip in the head with a
    reset/init sequence to make sure it recovers afer a transmit error.
  
  Revision  Changes    Path
  1.35      +27 -13    src/sys/pci/if_rl.c
  1.14      +4 -2      src/sys/pci/if_rlreg.h



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