[openib-general] CMA/RDS

Or Gerlitz ogerlitz at voltaire.com
Wed Dec 14 02:17:55 PST 2005


Ranjit Pandit wrote:

> I'm also trying to figure out whether to use CM or CMA for RDS

Please note that the CMA does much more then making your CM interaction 
easier, eg handle IP to RDMA (eg IB) address translation, being at 
hotplug client and generally provides IP based RDMA transport neutral 
connection management service. Combining this with the ib_verbs api 
being also RDMA transport neutral enables an app/ulp to be such.

Eventually, most (all) the middlewares/ULPs are to be coded over the CMA 
and ib_verbs, eg uDAPL, iSER, NFSoRDMA, Lustre, SDP, SRP(?). The iSER 
initiator code over the CMA is under work and initial drop is commited 
to the openib svn.

Or.




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