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From: Kip Macy <kmacy@FreeBSD.org>
Date: Tue, 10 Jul 2007 06:01:45 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
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Cc: 
Subject: cvs commit: src/sys/dev/cxgb cxgb_adapter.h cxgb_main.c cxgb_sge.c
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kmacy       2007-07-10 06:01:45 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/cxgb         cxgb_adapter.h cxgb_main.c cxgb_sge.c 
  Log:
  MFp4 122896
  - reduce cpu usage by as much as 25% (40% -> 30) by doing txq reclaim more efficiently
     - use mtx_trylock when trying to grab the lock to avoid spinning during long encap loop
     - add per-txq reclaim task
     - if mbufs were successfully re-claimed try another pass
  - track txq overruns with sysctl
  
  Approved by: re (blanket)
  
  Revision  Changes    Path
  1.13      +5 -1      src/sys/dev/cxgb/cxgb_adapter.h
  1.26      +6 -2      src/sys/dev/cxgb/cxgb_main.c
  1.22      +67 -39    src/sys/dev/cxgb/cxgb_sge.c