[openib-general] ib_req_ncomp_notif in core_ layer

Michael S. Tsirkin mst at mellanox.co.il
Wed Aug 11 11:32:56 PDT 2004


Quoting r. Roland Dreier (roland at topspin.com) "Re: [openib-general] ib_req_ncomp_notif in core_ layer":
>     Michael> Indeed, why not just have req_ncomp_notif and pass in n?
>     Michael> Why is there a special call for n=1? Is it to save a
>     Michael> conditional branch? Hardware could just ignore the n
>     Michael> parameter if it cant support it.
> 
> req_ncomp_notif doesn't seem to have any way to request an event on
> the next solicited completion.
> 

Its a documentation bug, actually.
The current implementation actually reports an event after
n completions or after any solicited completion.
Same for completion with error.

Thus (going from more to less events):

request completion notif. >
      > request n completions notif.
      > request solicited notif.

So they can be merged?
MST




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