[openib-general] How about ib_send_page() ?

Roland Dreier roland at topspin.com
Thu May 19 10:31:47 PDT 2005


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

But this means that the MTU of the link will be different for UD
destinations (including multicast) and RC destinations, right?  Or am
I missing something?

 - R.



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