cvs commit: src/sys/dev/mxge if_mxge.c if_mxge_var.h

[Andrew Gallatin]

gallatin    2007-05-22 15:57:49 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/mxge         if_mxge.c if_mxge_var.h 
  Log:
  mxge cleanups:
  
  - Remove code to use the special wc_fifo.  It has been disabled by default
    in our other drivers as it actually slows down transmit by a small amount
  
  - Dynamically determine the amount of space required for the rx_done
    ring rather than hardcoding it.
  
  - Compute the number of tx descriptors we are willing to transmit per
    frame as the minimum of 128 or 1/4 the tx ring size.
  
  - Fix a typo in the tx dma tag setup which could lead to unnecessary
    defragging of TSO packets (and potentially even dropping TSO packets
    due to EFBIG being returned).
  
  - Add a counter to keep track of how many times we've needed to
    defragment a frame.  It should always be zero.
  
  - Export new extended f/w counters via sysctl
  
  Sponsored by: Myricom, Inc.
  
  Revision  Changes    Path
  1.31      +87 -111   src/sys/dev/mxge/if_mxge.c
  1.12      +6 -6      src/sys/dev/mxge/if_mxge_var.h