[openib-general] openIB gen2 user space verbs API

[Kevin Reilly]

Thanks Roland,  I guess i can make the assumption that any prototype work
layered over VAPI can be fairly easily
ported over the new gen2 interface?

Kevin J. Reilly
STSM, HPC Architecture
-Federation/HPS  Chief Engineer
-HPC interconnect architect
(office) 845-433-7976  (tieline) 8-293-7976



                                                                           
             Roland Dreier                                                 
             <roland at topspin.c                                             
             om>                                                        To 
                                       Kevin Reilly/Poughkeepsie/IBM at IBMUS 
             04/14/2005 10:55                                           cc 
             PM                        openib-general at openib.org           
                                                                   Subject 
                                       Re: [openib-general] openIB gen2    
                                       user space verbs API                
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           




    Kevin> I was wonder where i could find information on the openIB
    Kevin> gen2 user space verbs API?  One of my key questions is how
    Kevin> much different then VAPI.  Is it a superset of VAPI and if
    Kevin> so what function was added?

Right now the best way to find out about the userspace verbs API is to
look at the libibverbs source.  The include file infiniband/verbs.h
and the code in the examples directory are probably the best places to
get started.

The current code implements all the main verbs likely to be used by
userspace applications.  There are no functions that I can think of
added beyond what's in VAPI.

  - R.