[openib-general] How about ib_send_page() ?

[Michael Krause]

At 12:13 PM 6/3/2005, Sean Hefty wrote:
>Fab Tillier wrote:
>>Ok, so this question is from a noob, but here goes anyway.  Why can't IPoIB
>>advertise a larger MTU than the UD MTU, and then just fragment large IP
>>packets up if they need to go over the IB UD transport?  Is there any reason
>>this couldn't work?  If it does, it allows IPoIB to expose a single MTU to
>>the OS, and take care of the rest under the covers.
>>Just a thought.
>
>I don't remember seeing a response to this.  Something like this could 
>work.  I guess one disadvantage is that it can be less efficient if you 
>lose a lot of packets.  TCP would resend an entire MTU (as seen by TCP) of 
>data if only a single IB packet were lost.

Why not just use the IETF draft for RC / UC based IP over IB and not worry 
about creating something new?

Mike 
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