On 6/30/05, Bob Woodruff <[EMAIL PROTECTED]> wrote:
> Catlin wrote,
> >application ---------> DAT Layer -----------> RDMA Verbs -------->
> >model-specific code
> > \ ^
> > \ /
> > \------------------------------------/
>
>
> Tell me how you are going to make the CM transport independent.
> You cannot, they are simply different for IB and iWarp.
>
> We would have to do something like,
>
> rdma_verbs_connect(xport_type, ....)
> {
> if (xport_type == ib) {
> do_sa_queries()
> ib_connect()
> }
> else if (xport_type == iwarp) {
> do_iWarp_connect()
> }
> }
>
> Thus all you have done is added another layer,
>
True.
My assumption is that each transport would have its
own CM module with similar, but not identical APIs.
An application wants to go direct it could do the
if/else ifs on its own.
We could define polymorphic interface which all
CMs MUST support, but each would have its own
transport specific extensions.
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