[swg] RE: [openib-general] socket based connectionmodel for IBproposal -round 4

[Kanevsky, Arkady]

agreed.

Arkady Kanevsky                       email: arkady at netapp.com
Network Appliance Inc.               phone: 781-768-5395
275 Totten Pond Rd.                  Fax: 781-895-1195
Waltham, MA 02451-2010          central phone: 781-768-5300
 

> -----Original Message-----
> From: Sean Hefty [mailto:mshefty at ichips.intel.com] 
> Sent: Wednesday, November 30, 2005 12:59 PM
> To: Yaron Haviv
> Cc: Kanevsky, Arkady; Ted H. Kim; swg at infinibandta.org; 
> openib-general at openib.org
> Subject: Re: [swg] RE: [openib-general] socket based 
> connectionmodel for IBproposal -round 4
> 
> Yaron Haviv wrote:
> > How about using ARP to get from IP to DGID+Partition Followed by an 
> > SIDR to map DGID+PKey+Service to QKey & QP
> > 
> > It is the same concept as CMA that first uses IP stack (ARP 
> etc') to 
> > get to the remote end-point (in that case GID+PKey combination) 
> > followed by SA-PR and CM REQ, we just substitute the CM REQ with a 
> > SIDR REQ It may not solve all the cases but probably most of the 
> > practical ones
> 
> This was my thought as well.
> 
> > Anyway the packets will need to carry some header (since it's not a 
> > connected model), you can add more stuff in that header 
> (e.g. can use 
> > IPoIB header as is which contains already the src/dst IP)
> 
> I was assuming that each packet would need to carry some sort 
> of header.
> 
> At this point, we may want to defer defining anything for UDP 
> until there's a better understanding of what an application 
> would want.  My guess is that such an application will need 
> new APIs for posting sends based on UDP addressing.
> 
> - Sean
>