[U-Boot] [PATCH/RFC] net: defragment IP packets

[Ben Warren <biggerbadderben@gmail.com>]

Hi Guys,

Alessandro Rubini wrote:
>>>    <http://www.faqs.org/rfcs/rfc815.html>
>>>       
>> Yeah, I had seen this - but didn't want to duplicate something that Alessandro 
>> might already working on...
>>
>> Alessandro - were you going to add out of order packets?
>>     
>
> If the code has chances to go mainline, I'll be happy to complete this
> task.  So unless I get a nak earlier, I'm going to find a time slot in
> the next few days (with your fixes, I suppose, or should they remain
> separate patches?)
>
>   
>> To make your host send out of order/delayed packets, which should be 
>> more "real world/long haul" try something like:
>>   # modprobe sch_netem (if it's not compiled into your kernel)
>>   # tc qdisc change dev eth0 root netem reorder 50% delay 10ms
>>     
>
> Thanks a lot, I was missing that.
> /alessandro
>   
This is great work.  Thanks!  If you follow these guidelines, I'll pull 
it into the net repo:

1. Configurable block size (via a well-named CONFIG).  Choose a good 
default value.
2. Handle out-of-order fragments, and some test results showing that it 
works.
3. Make the feature configurable
4. Test with a TFTP server that doesn't have blksize feature enabled

I'm not sure about how to handle the configurability of this feature.  I 
can see this being the default configuration in the future, but for now 
it should probably be opt-in.  Let's see how it goes.

regards,
Ben