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From: Adrian Chadd <adrian@FreeBSD.org>
Date: Thu, 3 Feb 2011 20:30:17 +0000 (UTC)
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Subject: cvs commit: src/sys/dev/ath if_ath_tx.c
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adrian      2011-02-03 20:30:17 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/ath          if_ath_tx.c 
  Log:
  SVN rev 218240 on 2011-02-03 20:30:17Z by adrian
  
  Modify the TX path to set and use the 11n rate scenario bits.
  
  This isn't strictly required to TX (at least non-agg and non-HT40,
  non-short-GI) frames; but as it needs to be done anyway, just get
  it done.
  
  Linux ath9k uses the rate scenario style path for -all- packets,
  legacy or otherwise. This code does much the same.
  
  Beacon TX still uses the legacy, non-rate-scenario TX descriptor
  setup. Ath9k also does this.
  
  This 11n rate scenario path is only called for chips in the AR5416
  HAL; legacy chips use the previous interface for TX'ing.
  
  Revision  Changes    Path
  1.4       +75 -25    src/sys/dev/ath/if_ath_tx.c