[openib-general] How about ib_send_page() ?

[Vivek Kashyap]

<snip...>

> 
> The most interesting optimization available is implementing the IPoIB
> connected mode draft, although I don't think it's as easy as Vivek
> indicated -- for example, I'm not sure how to deal with having
> different MTUs depending on the destination.

<snip...>

The draft does allow for a negotiation per connection for the implementations
that wish to take advantage of it. However, an implementation can by default
choose to use a 'connected-mode MTU' e.g. 32K always. It can then, for every 
connection choose to, negotiate to this value and if it is not workable fall 
back to the UD mode and deny the connection mode. The ARP entries hold the 
connected mode flags thereby keeping track of the mode to use per destination. 

I'd be more than happy to discuss other implementation issues. As I noted 
earlier it will also help refine the draft.

Vivek

P.S. cc replies to kashyapv at us.ibm.com.