dimm_create
struct dimm_softc *dimm_create(int _node, int _chan, int _slot);
dimm_sc->dimm_softc = dimm_create(0, chanid, dimm);
dimm_create(sc->ecc_node, sc->ecc_chan->chan_ext, dimm);
dimm_sc->dimm_softc = dimm_create(0, chan, dimm_id);
dimm_sc->dimm_softc = dimm_create(sc->temp_node,