== DF-4267: RX ring construction ==
DragonFly    ring: next[0]=0 next[1]=0 next[63]=0 | distinct descriptors reachable from head: 1 / 64
FreeBSD411   ring: next[0]=1 next[1]=2 next[63]=0 | distinct descriptors reachable from head: 64 / 64

== DF-4266: wb_rxeof loop direction vs chip ownership ==
frame completed by chip      chip_state=completed DFLY: processed=0 babbling-reset=0 | FBSD411-COND: processed=1
chip still writing desc      chip_state=mid-write DFLY: processed=0 babbling-reset=1 | FBSD411-COND: processed=0
no rx activity               chip_state=idle-none DFLY: processed=0 babbling-reset=1 | FBSD411-COND: processed=0

Expected (correct driver): completed -> processed, mid-write/idle -> wait.
EXIT=0