Re: [RFC] Port of DfBSDs new IP Checksum Code

From: Bruce M Simpson (bms_at_spc.org)
Date: 08/06/05

  • Next message: Gordon Bergling: "Re: [RFC] Port of DfBSDs new IP Checksum Code" 
    Date: Sat, 6 Aug 2005 13:15:04 +0100
To: Gordon Bergling <gbergling@0xfce3.net>

    Hi,

    On Sat, Aug 06, 2005 at 01:43:29PM +0200, Gordon Bergling wrote:
    > I have ported the new IP Checksum Code from DragonflyBSD to FreeBSD.
    > I have a patch available at
    > http://generic.0xfce3.net/freebsd/ipchecksum/20050805-ipchecksum.patch

    There are inline i386 instructions in a machine-independent header; is this
    intentional? Also the asm_ones32() code seems to exist only for i386.

    Without support for other platforms, and some cleanup, I don't think that
    the patch can be committed as is, sadly.

    I do like the general idea of rewriting in_cksum() to take advantage of
    branch prediction logic in modern microprocessors, however.

    Regards,
    BMS
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  • Next message: Gordon Bergling: "Re: [RFC] Port of DfBSDs new IP Checksum Code"

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