[openib-general] Re: RDMA memory registration

Roland Dreier roland at topspin.com
Fri Apr 29 13:59:22 PDT 2005


    Todd> But that implies the hardware has an MMU and it also puts an
    Todd> interrupt in the path per page sent.

Well, there's one interrupt per non-resident page sent.  But nearly
all of the time the page will be present.

    Todd> Wasn't the assertion that there was no MMU in the hardware?

I don't think so.  Greg's original message said this doesn't work for
PathScale's part precisely because they don't have an MMU.

 - R.



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