[ofa-general] [RFC] dropping RDS over TCP support

[Andy Grover]

Jon Mason wrote:
> On Tue, Sep 02, 2008 at 01:04:19PM -0700, Andy Grover wrote:
>> We've been discussing dropping RDS's support for using TCP as a
>> transport, and just focusing on RDS as a IB and iWARP-focused protocol.

> I found it useful for early development of RDS iWARP support. 

Hmm! Were you actually running it or just using it as a reference?

> While I
> believe that mainline inclusion is much more important, I don't see any
> harm in keeping it around.  Is there a thread on lkml listing it as an
> issue for mainline inclusion?

We haven't brought up rds inclusion on lkml yet, but I think positioning
RDS as an IB protocol is a good thing. RDS may be a better fit in
drivers/infiniband/ulp/rds, rather than net/rds, for example.

Removing unused code is also always a good thing.

Lastly, we're looking to extend rds with more ib-centric features in the
future, so it would be a development burden to tunnel that over the TCP
transport...and that starts to sound a lot like reinventing iwarp ;-)

Regards -- Andy