Re: How to use IP/UDP/TCP checksum offload HW?

[Grant Edwards <grant.b.edwards@xxxxxxxxx>]

On 2011-06-07, Ilija Kocho <ilijak@xxxxxxxxxxx> wrote:

>>>> Must we look at the latest BSD code to see how to implement this?
>>>
>>> Maybe.  Or there might be a simpler way to do it.  I would guess that
>>> the current FreeBSD has an API to configure this on a per-interface
>>> basis at run-time.
>>>
>>> If we can assume that there is only one external interface, then we
>>> don't need any API or runtime checks, just a few strategic #if/#endif
>>> pairs and some CDL to control them.
>>
>> So how do we progress this? Should we offline exchange the mods we've
>> each tried (code and CDL)?

I won't have any hardware available until Q4.  So I probably won't be
ble to spend much time on it for a few months.

> I am going to need the same soon only with lwIP. Recent on-chip
> Ethernet controllers provide for some IP processing so IMO we should
> address this issue generally. Is there place for some community
> project?

There are a number of svn/git/hg/whatever hosting sites that could be
used.  IIRC, somebody had set up a site to host eCos-related stuff, I
guess this is it:

  http://ecosx.sourceforge.net/

It doesn't look like it's been touched for 5 years, but the guy who
set it up is still active on other projects on sourceforge.

One question in my mind is whether it needs to be run-time
configurable on a per-interface basis, or can it be a global,
build-time option.

-- 
Grant Edwards               grant.b.edwards        Yow! Don't hit me!!  I'm in
                                  at               the Twilight Zone!!!
                              gmail.com            


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