mfii_bio_hs
rv = mfii_bio_hs(sc, bv->bv_volid, MFI_MGMT_VD, bv);
rv = mfii_bio_hs(sc, bd->bd_volid, MFI_MGMT_SD, bd);
int mfii_bio_hs(struct mfii_softc *, int, int, void *);