[lwip-devel] [patch #7060] Patch to optionally inline ip checksum

[Bill Auerbach]

URL:
  <http://savannah.nongnu.org/patch/?7060>

                 Summary: Patch to optionally inline ip checksum
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: billauerbach
            Submitted on: Mon 11 Jan 2010 09:59:25 AM EST
                Category: None
                Priority: 3 - Low
                  Status: None
                 Privacy: Public
             Assigned to: None
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None

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Details:

This patch inlines the ip header checksum.  It's one of several changes I
made that had a noticeable speed increase sending packets.  Since we already
touch each field in the header, adding to a sum on the fly had a minimal code
size impact. On my platform, it wasn't much more than the function call it
replaced to generate the checksum.

#define INLINE_IP_CHECKSUM 0 must be added to your opts.h file and the
override added to the lwip_opts.h file.



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File Attachments:


-------------------------------------------------------
Date: Mon 11 Jan 2010 09:59:25 AM EST  Name: ipinlinechecksum.diff  Size: 2kB
  By: billauerbach

<http://savannah.nongnu.org/patch/download.php?file_id=19459>

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