[openib-general] Re: [PATCH 9 of 20] ipath - char devices for diagnostics and lightweight subnet management

Roland Dreier rdreier at cisco.com
Thu Mar 9 21:59:13 PST 2006


    Bryan> So.  Our userspace SMA that talks to /dev/ipath_sma can run
    Bryan> without ib_mad or any other IB code present, and it will
    Bryan> coexist with them if they are.

    Bryan> In addition, it provides some facilities to ipath_ether
    Bryan> that ib_mad doesn't, without which ipath_ether can't
    Bryan> support multicast, for example.

So why do you need all the in-kernel SMA code in ipath_mad.c?

Why can't you just have one SMA that has the union of all the features
you need?

 - R.



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