I'm trying to use aggr on top of nep(4), which has turned up a few bugs.
Firstly, the nic appears to report rx errors in the second interrupt
state vector, which the driver doesn't expect, so I get this:
nep3: nep_intr 0 8 0
and then, since the interrupt wasn't rearmed, the interface stops.
Then, the driver doesn't clear rx error interrupt sources, so rearming
results in an interrupt storm. The illumos nxge driver masks off read-only
bits in the rx status register and writes it back, clearing all active
interrupt sources, so I've done that here too.