afe and dmfe cases approved

FYI, the afe and dmfe cases I had at PSARC (2007/229 and 2007/221 respectively) were approved. I've already put back the dmfe code. The afe code will be committed by Alan DuBoff. I've got pre-approval to do a follow-up putback to convert afe to GLDv3 afterwards.

Note that as a result of Crossbow, there are some changes coming in GLDv3, so it is still inappropriate to use GLDv3 for unbundled drivers. (The biggest of these changes is support for "polling", where the network stack can disable interrupts on the NIC and run a separate thread to poll the device for inbound packets. On extremely high traffic systems, this can have a big impact on overall system throughput by avoiding the extra context switches.)


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