RE: [ofa-general] [PATCH v3] iw_cxgb3: Support "iwarp-only"interfacesto avoid 4-tuple conflicts.

From: Sean Hefty
Date: Thu Sep 27 2007 - 15:12:09 EST

>What is the model on how client connects, say for iSCSI,
>when client and server both support, iWARP and 10GbE or 1GbE,
>and would like to setup "most" performant "connection" for ULP?

For the "most" performance connection, the ULP would use IB, and all these
problems go away. :)

This proposal is for each iwarp interface to have its own IP address. Clients
would need an iwarp usable address of the server and would connect using
rdma_connect(). If that call (or rdma_resolve_addr/route) fails, the client
could try connecting using sockets, aoi, or some other interface. I don't see
that Steve's proposal changes anything from the client's perspective.

- Sean
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