mfi_frame_t
bzero(mfi->mfi_frame, sizeof (mfi_frame_t));
mfi_frame_t *mfi_frame;
&mfi->mfi_frame_dma, sizeof (mfi_frame_t), 256,
CTASSERT(offsetof(mfi_frame_t, mf_init) == 0x18);
CTASSERT(sizeof (mfi_frame_t) == 64);
mfi_frame_t ioc_frame;